• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
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  • 优先权
    • 专利摘要:
    The present invention relates to a slip ring assembly that is used with a surgical drive shaft assembly. The slip ring assembly includes a slip ring, a first conductor mounted on the slip ring, a rotary switch relative to the slip ring and a second conductor mounted on the switch. The slip ring assembly further comprises a flexible member disposed between the slip ring and the switch. The flexible member comprises a flexible body and protuberances extending from the body, the flexible protuberances being elastically deformed against the first sliding ring.
    公开号:BR112019027663A2
    申请号:R112019027663-7
    申请日:2018-05-24
    公开日:2020-07-07
    发明作者:David C. Yates；Frederick E. Shelton Iv；Jason L. Harris
    申请人:Ethicon Llc；
    IPC主号:
    专利说明:

    [0001] [0001] The present invention relates to surgical instruments and, in various circumstances, surgical instruments for stapling and cutting, and staple cartridges for them, which are designed for stapling and cutting fabrics. BACKGROUND OF THE INVENTION
    [0002] [0002] In a motorized surgical stapling and cutting instrument, it can be useful to measure the position and speed of a cutting member at an initial time or predetermined offset to control speed. Measuring position or speed in relation to an initial predetermined time or offset can be useful for assessing tissue thickness and for adjusting the remaining stroke speed based on such a comparison with respect to a limit.
    [0003] [0003] Although several devices have been produced and used, it is believed that no one before the inventors made or used the device described in the attached claims. SUMMARY OF THE INVENTION
    [0004] [0004] In one aspect, a slip ring assembly is used with a surgical drive shaft assembly. The slip ring assembly includes a first connector, a first conductor mounted on the first connector, a second swivel connector in relation to the first connector and a second conductor mounted on the second connector, the second conductor being in contact with the first driver. An interface is positioned between the first connector and the second connector, the interface being configured to retain water away from at least one of the first conductor and the second conductor.
    [0005] [0005] A surgical drive shaft assembly includes a proximal drive shaft portion that includes a proximally supported connector on the proximal drive shaft portion and the first conductors mounted on the proximal connector. The proximal drive shaft assembly also includes a rotatable distal drive shaft portion relative to the proximal drive shaft portion. The distal drive shaft portion includes a distal connector supported on the distal drive shaft portion, the second conductors mounted on the distal connector, the second conductors being spaced laterally and radially from each other, and a gasket disposed between the proximal connector and the distal connector, the gasket being configured to block the flow of water towards at least one of the first conductors and the second conductors.
    [0006] [0006] In one aspect, a slip ring assembly is used with a surgical drive shaft assembly. The slip ring assembly includes a slip ring, a first conductor mounted on the slip ring, a rotary switch relative to the slip ring and a second conductor mounted on the switch. The slip ring assembly also includes a flexible member disposed between the slip ring and the switch, the flexible member including a flexible body and protrusions extending from the body, the flexible protuberances being elastically deformed against the first slip ring. FIGURES
    [0007] [0007] The innovative characteristics of the various aspects described here are presented with particularity in the attached claims. Several aspects, however, both in relation to the organization and the methods of operation can be better understood by reference to the following description, taken in conjunction with the attached drawings as follows:
    [0008] [0008] Figure 1 is a perspective view of a surgical instrument that has a set of driving axes and an end actuator according to one or more aspects of the present description.
    [0009] [0009] Figure 2 is an exploded view of a portion of the surgical instrument of Figure 1, according to an aspect of the present description.
    [0010] [0010] Figure 3 is an exploded view of an end actuator of the surgical instrument of Figure 1, according to an aspect of the present description.
    [0011] [0011] Figure 4 is a perspective view of an RF cartridge and an elongated channel adapted for use with the RF cartridge, in accordance with an aspect of the present description.
    [0012] [0012] Figure 5 is an exploded assembled view of portions of the interchangeable drive shaft assembly of the surgical instrument of Figure 1, according to an aspect of the present description.
    [0013] [0013] Figure 6 is another exploded assembled view of portions of the interchangeable drive shaft assembly of Figure 1, according to an aspect of the present description.
    [0014] [0014] Figure 7 illustrates a cross-sectional view of a portion of the interchangeable drive shaft assembly of Figure 1, according to an aspect of the present description.
    [0015] [0015] Figure 8 is a perspective view of a portion of the drive shaft assembly of Figure 1, with the switching cylinder omitted, for the sake of clarity.
    [0016] [0016] Figure 9 is another perspective view of the portion of the interchangeable drive shaft assembly of Figure 1, with the switching cylinder mounted on it.
    [0017] [0017] Figure 10 is a plan view of a slip ring of a slip ring assembly according to an aspect of the present description.
    [0018] [0018] Figure 11 is a plan view of a distal connector of a slip ring assembly according to an aspect of the present description.
    [0019] [0019] Figure 12 is a plan view of a flexible member assembled with a distal connector in accordance with an aspect of the present description.
    [0020] [0020] Figure 13 is a plan view of a flexible member assembled with a distal connector in accordance with an aspect of the present description.
    [0021] [0021] Figure 14 is a cross-sectional view of a slip ring assembly according to an aspect of the present description. DESCRIPTION
    [0022] [0022] The applicant for this application holds the following US patent applications, which were filed on the same date as this application and which are each incorporated by reference in their respective totalities: - US patent application no. series, entitled ARTICULATION STATE DETECTION MECHANISMS; Attorney document number END8176USNP / 170049; - US patent application serial number, entitled
    [0023] [0023] Certain aspects are shown and described to provide an understanding of the structure, function, manufacture and use of the devices and methods described. The features shown or described in one example can be combined with the features in other examples and the changes and variations are within the scope of this description.
    [0024] [0024] The terms "proximal" and "distal" refer to a doctor manipulating the handle of the surgical instrument where "proximal" refers to the portion closest to the doctor and "distal" refers to the portion located in the most away from the doctor. For convenience, the spatial terms "vertical", "horizontal", "above" and "below" used in relation to the drawings are not intended to be limiting and / or absolute, because surgical instruments can be used in many - these guidelines and positions.
    [0025] [0025] The terms "understands" (and any form of understands, such as "understands" and "that understands"), "has" (and any form of has, such as "has" and "that has"), "includes" (and any form of includes, such as "includes" and "which includes") and "contains" (and any form of contains, such as "contains" and "which contains") are unrestricted linking verbs. As a result, a surgical system, device or apparatus that "comprises", "has", "includes" or "contains" one or more elements has those one or more elements, but is not limited to having only those one or more elements. Likewise, an element of a surgical system, device or device that "comprises", "has", "includes" or "contains" one or more resources has those one or more resources, but is not limited to possess only those one or more resources.
    [0026] [0026] Exemplary devices and methods are provided for performing laparoscopic and minimally invasive surgical procedures. Such devices and methods, however, can be used in other surgical procedures and applications including open surgical procedures, for example. Surgical instruments can be inserted into a natural orifice or into an incision or perforation formed in tissues. The functional portions or portions of the instrument's end actuator can be inserted directly into a patient's body or into an access device that has a working channel through which the end actuator and the elongated drive shaft of a surgical instrument can be inserted. be advanced.
    [0027] [0027] Figures 1 to 9 show a surgical instrument powered by a motor 10 for cutting and fastening, which may or may not be reused. In the illustrated examples, the surgical instrument 10 includes a compartment 12 that comprises a handle assembly 14 that is configured to be picked up, manipulated and actuated by the physician. The compartment 12 is configured for operational fixation to an interchangeable drive shaft assembly 200 that has an end actuator 300 operationally coupled to it that is configured to perform one or more surgical tasks or procedures. According to the present description, various forms of interchangeable drive shaft assemblies can be effectively used in conjunction with robotically controlled surgical systems. The term "compartment" can encompass a compartment or similar portion of a robotic system that houses or otherwise operationally supports at least one drive system configured to generate and apply at least one control movement that can be used to drive the drive shaft assemblies. The term "structure" can refer to a portion of a hand held surgical instrument. The term "structure" can also represent a portion of a robotically controlled surgical instrument and / or a portion of the robotic system that can be used to operationally control the surgical instrument. Interchangeable drive shaft assemblies can be used with various robotic systems, instruments, components and methods described in US Patent No. 9,072,535, entitled "SURGICAL STAPLING INSTRUENTS WITH ROTATABLE STAPLE DEPLOYMENT ARRANGE-MENTS", which is incorporated herein as a reference, in its entirety.
    [0028] [0028] Figure 1 is a perspective view of a surgical instrument 10 that has an interchangeable drive shaft assembly 200 operatively coupled to it, in accordance with an aspect of the present description. Compartment 12 includes an end actuator 300 that comprises a surgical cutting and clamping device configured to operationally support a 304 surgical clamp cartridge inside. Compartment 12 can be configured for use in connection with interchangeable drive shaft assemblies that include end actuators that are adapted to hold different sizes and types of clamp cartridges, and that have different lengths, sizes and types of drive shaft. Enclosure 12 can be used with a variety of interchangeable drive shaft assemblies, including assemblies configured to apply other movements and forms of energy, such as radio frequency (RF) energy, ultrasonic energy and / or movement to actuator arrangements. extremities adapted for use in conjunction with various applications and surgical procedures. End actuators, drive shaft assemblies, cuffs, surgical instruments and / or surgical instrument systems can use any fastener or fasteners suitable for fastening tissue. For example, a fastener cartridge that comprises a plurality of fasteners stored therein removably can be removably inserted into and / or attached to the end actuator of a drive shaft assembly.
    [0029] [0029] The handle assembly 14 may comprise a pair of interconnectable segments of the handle compartment 16 and 18 interconnected by screws, push-fit elements, adhesive, etc. The grip compartment segments 16, 18 cooperate to form a portion of the pistol grip 19 that can be handled and manipulated by the physician. The handle assembly 14 operationally supports a plurality of drive systems configured to generate and apply control movements to the corresponding portions of the exchangeable drive shaft assembly that is operationally attached to it.
    [0030] [0030] Figure 2 illustrates an exploded view of a portion of the ultrasonic surgical instrument 10 of Figure 1, according to an aspect of this description. The handle assembly 14 can include a frame 20 that operationally supports a plurality of drive systems. The frame 20 can operationally support a "first" drive system or closing drive system 30, which can apply closing and opening movements to the interchangeable drive shaft assembly 200. The closing drive system 30 can include an actuator, such as a closing trigger 32 pivotally supported by frame 20. The closing trigger 32 is pivotally coupled to the handle assembly 14 by a pivot pin 33 to enable the closing trigger 32 to be manipulated by a doctor. When the physician wields the pistol grip portion 19 of the grip assembly 14, the closing trigger 32 can rotate from an initial or "not acted" position to an "acted" position and, more particularly, to a fully compressed or fully acted.
    [0031] [0031] The handle assembly 14 and the structure 20 can operationally support a trigger drive system 80 configured to apply trigger movements to the corresponding portions of the interchangeable drive shaft assembly fixed to it. The firing drive system 80 may employ an electric motor 82 located in the pistol grip portion 19 of the handle assembly 14. Electric motor 82 may be a brushed DC DC motor having a maximum rotation speed of approximately 25,000 rpm , for example. In other arrangements, the motor may include a brushless motor, a wireless motor, a synchronous motor, a stepper motor or any other suitable electric motor. The electric motor 82 can be powered by a power source 90 which can comprise a removable battery 92. The removable power source 92 can comprise a portion of the proximal compartment 94 that is configured for attachment to a portion of the distal compartment 96. The proximal compartment portion 94 and the distal compartment portion 96 are configured to operationally support a plurality of batteries 98. Each of the batteries 98 may comprise, for example, a lithium ion battery (LI) or other suitable battery . The distal compartment portion 96 is configured for removable operational fixation to a control circuit board 100 that is operationally coupled to the electric motor 82. Several batteries 98 connected in series can supply the surgical instrument 10. In addition, the source of energy 90 can be replaceable and / or rechargeable.
    [0032] [0032] The electric motor 82 may include a rotary drive shaft (not shown), which, operationally, interfaces with a gear reduction assembly 84, which is mounted on a coupling hitch with a set or rack, drive teeth 122 on a longitudinally movable drive member
    [0033] [0033] In use, a voltage polarity provided by the power supply 90 can operate the electric motor 82 clockwise, and the voltage polarity applied to the electric motor by the battery can be reversed in order to operate the electric motor 82 in the anticlockwise. When the electric motor 82 is rotated in one direction, the longitudinally movable drive member 120 will be axially activated in the distal direction "DD". When the electric motor 82 is driven in the opposite rotating direction, the longitudinally movable drive member 120 will be driven axially in the proximal direction "PD". The handle assembly 14 can include a switch that can be configured to reverse the polarity applied to the electric motor 82 by the power supply 90. The handle assembly 14 can include a sensor configured to detect the position of the longitudinally movable drive member 120 and / or the direction in which the longitudinally movable drive member 120 is being moved.
    [0034] [0034] The activation of the electric motor 82 can be controlled by a trigger trigger 130 that is pivotally supported on the handle assembly 14. The trigger trigger 130 can be rotated between an unacted position and an acted position.
    [0035] [0035] Returning to Figure 1, the interchangeable drive shaft assembly 200 includes an end actuator 300 that comprises an elongated channel 302 that is configured to support operatively inside a surgical staple cartridge 304. The end actuator 300 may include an anvil 306 which is pivotally supported in relation to the elongated channel 302. The drive shaft assembly 200 may comprise an articulated joint
    [0036] [0036] Returning to Figure 1, the closing tube 260 is translated distally (direction "DD") to close the anvil 306, for example, in response to the action of the closing trigger 32 in the manner described in the previously mentioned reference of the publication of patent application No. 2014/0263541. Anvil 306 is opened by proximal translation of the closing tube 260. In the open position of the anvil, the closing tube 260 of the drive shaft is moved to its proximal position.
    [0037] [0037] Figure 3 is an exploded view of an aspect of an end actuator 300 of the surgical instrument 10 of Figure 1, according to one or more aspects of the present description. End actuator 300 may include anvil 306 and surgical staple cartridge 304. In this non-limiting example, anvil 306 is coupled to an elongated channel 302. For example, openings 199 can be defined in elongated channel 302, which can receive pins 152 extending from the anvil 306 and enable the anvil 306 to rotate from an open position to a closed position in relation to the elongated channel 302 and the surgical staple cartridge 304. A firing bar 172 is configured to move longitudinally to the inside of the end actuator 300. The firing bar 172 can be constructed in a solid section or, in several examples, it can include a laminated material comprising, for example, a stack of steel plates.
    [0038] [0038] The rod with E 178 profile can include upper pins 180 that engage the anvil 306 during firing. The E-profile rod 178 may include intermediate pins 184 and a bottom base 186 that can engage various portions of the cartridge body 194, the cartridge seat 196 and the elongated channel 302. When a surgical staple cartridge 304 is positioned inside the elongated channel 302, a slot 193 defined in the cartridge body 194 can be aligned with a longitudinal slot 197 defined in the cartridge tray 196 and a slot 189 defined in the elongated channel 302. In use, the profile rod in E 178 it can slide through the longitudinal slots aligned 193, 197 and 189, and, as shown in Figure 3, the bottom base 186 of the rod with profile in E 178 can engage a groove that extends along the surface the bottom of the elongated channel 302 along the length of the slot 189, the middle pins 184 can engage the top surfaces of the cartridge tray 196 along the length of the longitudinal slot 197, and the upper pins 180 can engage the anvil 30 6. In these circumstances, the E-profile rod 178 can space or limit the relative movement between the anvil 306 and the surgical staple cartridge 304, while the firing bar 172 is moved distally to trigger the staple cartridge staples surgical 304 and / or make an incision in the tissue captured between the anvil 306 and the surgical staple cartridge 304. Thereafter, the trigger bar 172 and the E-profile rod 178 can be retracted proximally allowing the anvil 306 is opened to release the two stapled and separated tissue portions.
    [0039] [0039] With reference to Figure 4, in at least one arrangement, an interchangeable drive shaft assembly can be used together with an RF 1700 cartridge, as well as a staple / surgical clip cartridge.
    [0040] [0040] The RF 1700 surgical cartridge includes a cartridge body
    [0041] [0041] The cartridge body 1710 is formed with a centrally placed electrode holder 1720. The elongated slot 1712 extends through the center of the electrode holder 1720 and serves to divide the holder 1720 into a segment of the left holder 1720L and on a 1720R straight support segment. A right flexible circuit set 1730R is attached to the right support segment 1720R and a left flexible circuit set 1730L is attached to the left support segment 1720L. In at least one arrangement, for example, the straight flexible circuit 1730R comprises a plurality of 1732R wires which may include, for example, lighter wires / conductors for RF purposes and thinner wires for conventional stapling purposes, which are supported, fixed or embedded in a 1734R right insulating sheath / member which is attached to the 1720R right support In addition, the 1730R right flexible circuit assembly includes a 1736R "first phase" right electrode and a distal " second phase "1738R. Likewise, the left flexible circuit 1730L comprises a plurality of 1732L wires that can include, for example, lighter wires / conductors for RF purposes and thinner wires for conventional stapling purposes, which are supported, fixed or embedded - housed in a 1734L left insulating sheath / member that is attached to the 1720L left support. In addition, the 1730L left flexible circuit assembly includes a 1736L proximal left "first phase" electrode and a 1738L distal left "second phase" electrode. The left and right wires 1732L, 1732R are attached to a distal integrated chip 1740 mounted on the distal end portion of the 1710 cartridge body.
    [0042] [0042] The elongated channel 1602 includes a channel circuit 1670 that is supported in a recess 1621 that extends from the proximal end of the elongated channel 1602 to a distal location 1623 in the lower portion of the elongated channel 1620. The circuit of channel 1670 includes a proximal contact portion 1672 that contacts a distal contact portion 1169 of a flexible shaft strip of drive shaft for electrical contact therewith. A distal end 1674 of channel circuit 1670 is received within a recess 1625 in the corresponding wall formed in one of the walls of channel 1622 and is folded over and attached to an upper edge 1627 of the wall of channel 1622. Several corresponding exposed contacts 1676 are provided at the distal end 1674 of the 1670 channel circuit. One end of a flexible cartridge circuit 1750 is attached to the distal integrated chip 1740 and is attached to the distal end portion of the cartridge body 1710. Another end is folded over the edge of the 1711 cartridge platform surface and includes exposed contacts configured to make electrical contact with the exposed contacts 1676 of the 1670 channel circuit. Thus, when the 1700 RF cartridge is installed in the elongated channel 1602 , the electrodes, as well as the 1740 distal integrated microcircuit, are powered and communicate with an integrated circuit board through the contact between the circuit flexible tube 1750, flexible channel circuit 1670, a flexible drive shaft circuit and the slip ring assembly.
    [0043] [0043] Figure 5 is another exploded assembled view of portions of the interchangeable drive shaft assembly 200, according to an aspect of this description. The drive shaft assembly interchanges
    [0044] [0044] In addition to the above, the drive shaft assembly 200 includes a coupling assembly 400 that can be configured to selectively and releasably couple the hinge actuator 230 to the trigger member 220. In one form, the drive assembly Coupling 400 includes a locking ring or sleeve 402 positioned around the firing member 220, the locking sleeve 402 being rotatable between an engaged position, where the locking sleeve 402 engages the pivot driver 230 to the limb trigger 220, and a disengaged position, in which the hinge actuator 230 is not operably coupled to the trigger member 220. When the locking sleeve 402 is in its engaged position, the distal movement of the trigger member 220 can move distally the pivot actuator 230 and, correspondingly, the proximal movement of the firing member 220 can proximally move the pivot actuator 230 proximally. When the locking sleeve 402 is in its disengaged position, the movement of the firing member 220 is not transmitted to the hinge actuator 230 and, as a result, the firing member 220 can move independently of the hinge actuator 230 .
    [0045] [0045] Locking sleeve 402 may comprise a cylindrical, or at least substantially cylindrical body, including a longitudinal opening 403 defined therein, configured to receive firing member 220. Locking sleeve 402 may comprise protrusions of diametrically opposite inward locking 404 and an outward facing locking member 406. Locking lugs 404 can be configured to selectively engage trigger member 220. More particularly, when locking sleeve 402 is in position engaged, the locking protrusions 404 are positioned inside a drive notch 224 defined in the firing member 220, so that a distal pushing force and / or a proximal pulling force can be transmitted from the firing member 220 for locking sleeve 402. When locking sleeve 402 is in its engaged position, the second locking member 406 is received inside a drive notch 232 defined in the articulation driver 230, so that the distal pushing force and / or the proximal pulling force applied to the locking sleeve (402) can be transmitted to the articulation (230). In effect, the firing member
    [0046] [0046] The drive shaft assembly 200 additionally includes a switching cylinder 500 that is rotatably received at the closing tube 260. The switching cylinder 500 comprises a hollow drive shaft segment 502 that has a protrusion of drive shaft 504 formed therein, intended to receive inside it an actuation pin 410 that protrudes outwards. In various circumstances, the actuating pin 410 extends through a slot 267 into a longitudinal slot 408 provided in the locking sleeve 402 to facilitate the axial movement of the locking sleeve 402 when it is engaged with the pivot actuator 230. A rotating torsion spring 420 is configured to engage the protrusion 504 on the switching cylinder 500 and a portion of the nozzle housing 203, as shown in Figure 5, to apply a displacement force to the switching cylinder 500. The switching cylinder 500 may additionally comprise at least partially circumferential openings 506 defined inside, which,
    [0047] [0047] The drive shaft assembly 200 may comprise a slip ring assembly 600 that can be configured to conduct electrical energy from and / or to the end actuator 300 and / or communicate signals from and / or to the actuator endpoint 300, for example. The slip ring assembly 600 may comprise a proximal connector flange 604 mounted on a chassis flange 242 extending from the chassis 240 and a distal connector flange 601 positioned inside a slot defined in the portions of nozzle 202 and
    [0048] [0048] The drive shaft assembly 200 may include a proximal portion that is fixedly attached to the handle assembly 14, and a distal portion that is rotatable about a longitudinal geometric axis. The distal swivel portion of the drive shaft can be rotated relative to the proximal portion around the slip ring assembly 600. The distal connector flange 601 of the slip ring assembly 600 can be positioned on the rotary drive shaft portion distal. Furthermore, in addition to the above, the switching cylinder 500 can also be positioned within the distal rotating portion of the drive shaft. When the distal rotary drive shaft portion is rotated, the distal connector flange 601 and the switching cylinder 500 can be rotated synchronously with each other. In addition, the switching cylinder 500 can be rotated between a first position and a second position in relation to the flange of the distal connector 601. When the switching cylinder 500 is in its first position, the articulation drive system can be de- operationally attached to the trigger drive system and thus the operation of the trigger drive system may not articulate the end actuator 300 of the drive shaft assembly 200. When the changeover cylinder 500 is in its second position , the articulation drive system can be operationally engaged with the trigger drive system and, thus, the operation of the trigger drive system can articulate the end actuator 300 of the drive shaft assembly 200. When the switching cylinder 500 is moved between its first position and its second position, the switching cylinder 500 is moved relative to the flange of the distal connector 60 1.
    [0049] [0049] In several examples, the drive shaft assembly 200 may comprise at least one sensor configured to detect the position of the switching cylinder 500. The distal connector flange 601 may comprise a Hall effect sensor 605, for example, and the switching cylinder 500 may comprise a magnetic element, such as a permanent magnet 505, for example. The Hall 605 effect sensor can be configured to detect the position of the permanent magnet 505. When the switch cylinder 500 is rotated between its first position and its second position, the permanent magnet 505 can move in relation to the sensor. Hall 605 effect. In several examples, the Hall 605 effect sensor can detect changes in a magnetic field created when the permanent magnet 505 is moved. The Hall Effect 605 sensor can be in signal communication, for example, with a control circuit. Based on the signal from the Hall 605 effect sensor, a microcontroller in the control circuit can determine whether the articulation drive system is engaged or disengaged from the trigger drive system.
    [0050] [0050] A surgical instrument may not be able to use a rotary drive shaft assembly effectively, using wires in general to transmit energy and signals between a portion of the fixed drive shaft and a portion of the rotary drive shaft of the assembly drive shaft, since the wires can be twisted or even damaged due to repeated rotation of the drive shaft assembly. One way to overcome this deficiency may be to use a ring assembly instead of wires to transmit energy and signals to the rotating drive shaft portion. For example, a first electrode flange can be attached to the fixed drive shaft portion and a second electrode flange can rotate relative to the electrodes on the first flange. A gap is necessarily formed between the first flange and the second flange to allow rotation of the second flange in relation to the first flange. To maintain an electrical connection during the rotation of the rotating drive shaft portion, the electrodes of the first and second flanges can be exposed at an interface between them. The gap may allow water and / or other body fluids to enter the area between the first and second flanges, where the electrode interface is. Consequently, the electrode interface may be exposed to water and other body fluids during surgery. When touching exposed electrodes, water and / or body fluids can cause signal noise or even loss of power / signals.
    [0051] [0051] Aspects of the present description improve the slip ring assemblies in surgical instruments that are exposed to water and / or bodily fluids during their operation. Aspects of this description can prevent signal noise and loss of energy and signals by providing an insulating barrier to prevent water or fluids from reaching the electrodes.
    [0052] [0052] With reference to Figures 10 to 14, a slip ring assembly 1400 is illustrated. The slip ring assembly 1400 is in many ways similar to the slip ring assembly 600. For example, the slip ring assembly 1400 can be configured to conduct electrical energy to and / or the surgical end actuator 300 and / or transmit signals to and / or the surgical end actuator 300, back to a circuit board, while facilitating the rotational displacement of a distal drive shaft portion of a drive shaft assembly relative to a proximal drive shaft portion of the drive shaft assembly. A drive shaft assembly 200 can be equipped with the slip ring assembly 1400 in place of the slip ring assembly 600, for example. In several examples, a zero insertion force connector (ZIF) can be coupled to the slip ring assembly 1400 to transmit electrical signals and / or energy to the end actuator 300.
    [0053] [0053] The slip ring assembly 1400 can be incorporated into the drive shaft assembly 200. For example, a connector 1401 of the slip ring assembly 1400 can be fixed or fixed to a portion of the drive shaft proximal to the assembly drive shaft 200. In one arrangement, the proximal connector 1401 can be mounted to the chassis flange 242 (Figure 8) on the proximal drive shaft portion of the drive shaft assembly 200.
    [0054] [0054] A distal connector 1402 of the slip ring assembly 1400 can be fixed or attached to a distal drive shaft portion of the drive shaft assembly 200. In a user-controlled rotation of the drive shaft assembly 200, the portion the distal drive axis is rotated in relation to the proximal drive axis portion. The rotation of the distal drive shaft assembly causes the distal connector 1402 to be rotated relative to the proximal connector 1401. In a mounted configuration, the slip ring assembly 1400 comprises a toroidal shape or a cylindrical shape that includes an opening central 1419 configured to receive the closing tube 260.
    [0055] [0055] The proximal connector 1401, as shown in Figure 10, can be in the form of a slip ring that includes concentric and / or radially arranged conductors 1403 that are spaced from each other. Conductors 1403 comprise annular or disc-shaped profiles that are concentric around a longitudinal geometric axis that extends through opening 1419. Conductors 1403 in Figure 10 have continuous or non-interrupted profiles. In other examples, one or more conductors 1403 may have an interrupted profile. In several examples, as shown in Figure 10, conductors 1403 are mounted on proximal connector 1401
    [0056] [0056] When the slip ring assembly 1400 is mounted, the conductors 1404 of the distal connector 1402 are configured to be in contact with the opposite conductors 1403 of the proximal connector 1401. In certain arrangements, contact is maintained, or at least substantially- maintained, while distal connector 1402 and conductors 1404 are rotated relative to proximal connector 1401 and conductors 1403.
    [0057] [0057] In several examples, conductors 1404 can be in the form of resiliently forced pins, resilient leaf springs-
    [0058] [0058] Conductors 1404 are spaced from each other. Increasing the distance between adjacent conductors 1404 reduces the likelihood of a body of water connecting them. The c1404 can be grouped into two groups on opposite halves of the distal connector 1402. In some examples, as illustrated in Figure 11, a group of conductors 1404 are radially and laterally spaced apart to increase the distance between adjacent conductors 1404. In other words, a group of conductors 1404 can be arranged in a distal connector 1402 in an arcuate pattern. In some examples, conductors 1404 that are radially spaced may be arranged at an angle a defined with respect to a common point in the center of distal connector 1402.
    [0059] [0059] In certain provisions, angle a can be selected from a range of about 30º to about 90º, for example. In many cases, angle a can be selected from a range of about 40º to about 70º, for example. In several cases, angle a can be selected from a range of about 30º to about 90º, for example. In one example, angle a can be about 50º. Other values for the angle between adjacent conductors 1404 are contemplated by the present description. In different arrangements, different adjacent conductors 1404 can be spaced radially at different angles or at the same angle.
    [0060] [0060] Referring to Figure 11, adjacent conductors 1404 in a row can be spaced by a defined distance (d1) between two ends of adjacent conductors 1404. In some examples, distance (d1) can be selected from a range of about 0.025 "to about 0.200". In some examples, the distance (d1) can be selected from a range of about 0.050 "to about 0.150". In some examples, the distance (d1) can be about 0.075 ". In some examples, the distance (d1) can be about 0.100".
    [0061] [0061] In addition to the above, the sliding ring assembly 1400 additionally includes a flexible member 1410 disposed between the proximal connector 1401 and the distal connector 1402. The flexible member 1410 defines an interface between the proximal connector 1401 and the distal connector 1402 in the form of a gasket or a seal configured to resist the flow of water between the proximal connector 1401 and the distal connector 1402. In some instances, flexible member 1410 is configured to resist water flow for conductors 1403 and / or conductors 1404.
    [0062] [0062] Referring to Figure 14, the flexible member 1410 includes a body portion 1411 and flexible portions 1412 that project from the body portion 1411. The body portion 1411 and / or the flexible portions 1412 can be elastically deformed , flattened and / or spread against the proximal connector 1401 to resist the flow of water towards and / or to retain water away from conductors 1403 and / or conductors 1404.
    [0063] [0063] Referring to Figure 12, flexible member 1410 is mounted with distal connector 1402. In some examples, flexible member 1410 includes cutouts or openings 1414 configured to receive conductors 1403. In a mounted configuration of the slip ring assembly 1400, as shown in Figure 14, conductors 1403 of proximal connector 1401 are inserted through openings 1414 of flexible member 1410 and are brought into contact with conductors 1404 of distal connector 1402. In some examples, the flexible member 1410 is compressed, or at least partially compressed, between the proximal connector 1401 and the distal connector 1402, which causes the flexible portions 1412 to be elastically deformed, flattened and / or spread against the proximal connector 1401.
    [0064] [0064] A flexible portion 1412 may have a length that is substantially greater than the width of the flexible portion 1412. In some examples, a flexible portion 1412 may have a height that is substantially less than a length of the flexible portion
    [0065] [0065] In some examples, flexible portions 1412 may form step elements that define a step surface that is configured to retain water away from conductors 1403 and / or conductors 1404. In some examples, the pattern of step can be arranged in a step pattern.
    [0066] [0066] The spacing between adjacent flexible portions 1412 may vary. In some examples, the spacing between adjacent flexible portions 1412 can be substantially constant along a step pattern comprising several flexible portions 1412 extending from the body portion 1411. In other examples, the spacing between the portions adjacent flexible portions 1412 can vary through a step pattern. In one example, the spacing between adjacent flexible portions 1412 can vary substantially similarly through a step pattern.
    [0067] [0067] In several examples, the cross-sectional shape of one or more flexible portions 1412 may vary. In some examples, each flexible portion 1412 can be associated with a substantially triangular cross-sectional shape. In other examples, however,
    [0068] [0068] With reference to Figure 12, in several examples, the flexible portions 1412 are arranged in a series of concentric and radially arranged ribs 1412a-1412h which are separated by grooves or circular channels 1415. The ribs can form an external surface corrugated body portion 1411 that can be positioned against the proximal connector 1401, as shown in Figure 14. The ribs may have a similar shape or comprise different shapes. The ribs may concentrate closed concentric geometric figures such as, for example, an outermost rib 1404a and a more inner rib 1404h. Alternatively, certain ribs may have profiles that are interrupted by cutouts or openings 1414 that are configured to receive conductors 1403.
    [0069] [0069] In some examples, the outermost rib 1404a and the innermost rib 1404h form watertight internal and external barriers that prevent, or at least resist, the entry of water and / or other body fluids into the space between the proximal connector 1401 and the distal connector 1402. In addition, the grooves or channels 1415 are configured to retain the water that can pass through the outermost rib 1404a and / or the innermost rib 1404h to retain such water away from the conductors 1403 and / or conductors 1404.
    [0070] [0070] With reference to Figure 13, a distal connector 1402 'is mounted with a flexible member 1412'. Distal connector 1402 'and flexible member 1412' are similar in many ways to the distal connector
    [0071] [0071] Flexible member 1412 'is also similar in many ways to flexible member 1412. For example, flexible member 1412' includes ribs 1404'a-1404'h which are similar in many respects to ribs 1404a-1404h of flexible member 1412. However, flexible member 1412 'includes a different cutout arrangement configured to accommodate conductors 1404 ".
    [0072] [0072] In several examples, flexible members 1410, 1410 'are produced, or at least partially produced, from an elastomeric material. In at least one example, flexible members 1410, 1410 'are produced, or at least partially produced, from polyurethane or silicone. The flexible members 1410, 1410 'can be manufactured using any suitable manufacturing technique, for example, fusion molding or injection molding.
    [0073] [0073] Although several devices have been described here in connection with certain modalities, modifications and variations of these modalities can be implemented. The specific resources, structures or characteristics can be combined in any suitable way in one or more modalities. Therefore, the features, structures or specific features illustrated or described in connection with a modality can be combined, in whole or in part, with the resources, structures or features of one or more other modalities, without limitation. In addition, where materials for certain components are described, other materials can be used. In addition, according to several modalities, a single component can be replaced by multiple components and multiple components can be replaced by a single component, to perform one or more specific functions. The aforementioned description and the following claims are intended to cover all such modifications and variations.
    [0074] [0074] The devices described here can be designed to be discarded after a single use, or they can be designed to be used multiple times. In either case, however, a device can be reconditioned for reuse after at least one use. Reconditioning may include any combination of steps including, but not limited to, disassembly of the device followed by cleaning or replacement of specific parts of the device and subsequent refitting of the device. In particular, a re-conditioning facility and / or surgical team can disassemble a device and, after cleaning and / or replacing particular parts of the device, the device can be reassembled for subsequent use. Those skilled in the art will understand that the reconditioning of a device can use a variety of techniques to disassemble, clean / replace and reassemble. The use of these techniques, as well as the resulting refurbished device, are all within the scope of this application.
    [0075] [0075] The devices described here can be processed before surgery. First, a new or used instrument can be obtained and, if necessary, cleaned. The instrument can then be sterilized. In a sterilization technique, the instrument is placed in a closed and sealed container, such as a plastic or TYVEK bag. The container and the instrument can then be placed in a radiation field that can penetrate the container, such as gamma radiation, X-rays and / or high-energy electrons. Radiation can kill bacteria on the instrument and the container. The sterile instrument can then be stored in a sterile container. The sealed container can keep the instrument sterile until it is opened at the medical facility. A device can also be sterilized using any other known technique, including, but not limited to, beta radiation, gamma radiation, ethylene oxide, plasma peroxide and / or water vapor.
    [0076] [0076] Although this invention has been described as having exemplary designs, the present invention can be further modified within the spirit and scope of the description. It is intended, therefore, that this application covers any variations, uses or adaptations of the invention with the use of its general principles.
    [0077] [0077] Any patent, publication or other description material, in whole or in part, that is said to be incorporated into the present invention for reference purposes, is incorporated into the present invention only to the extent that the incorporated materials do not conflict with existing definitions, statements or other description material presented in this description. Thus, and as necessary, the description as explicitly presented herein replaces any conflicting material incorporated into the present invention as a reference. Any material, or portion thereof, which is incorporated herein by reference, but which conflicts with the definitions, statements, or other description materials contained herein, will be incorporated here only to the extent that there is no conflict. between the embedded material and the existing description material.
    [0078] [0078] Several aspects of the subject described here are defined in the following examples:
    [0079] [0079] Example 1 - A slip ring set for use with a surgical drive shaft. The slip ring assembly comprises a first connector and a first conductor mounted on the first connector. The slip ring assembly additionally comprises a second rotating connector in relation to the first connector, a second conductor mounted on the second connector, the second conductor being in contact with the first conductor, and an interface between the first connector and the second connector, the interface being configured to retain water away from at least one of the first conductor and the second conductor.
    [0080] [0080] Example 2 - The sliding ring assembly of Example 1, the interface comprising a body portion that includes an opening for receiving the second conductor.
    [0081] [0081] Example 3 - The sliding ring set of one or more of Examples 1 to 2, the interface comprising ribs projecting from the body portion.
    [0082] [0082] Example 4 - The sliding ring set of Example 3, the ribs being concentric.
    [0083] [0083] Example 5 - The slide ring set of one or more of Examples 1 to 4, the interface being flexible.
    [0084] [0084] Example 6 - The slip ring set of one or more of Examples 1 to 5, the interface being comprised of an elastomeric material.
    [0085] [0085] Example 7 - The sliding ring set of one or more of Examples 1 to 6, the interface being fixed to the second connector.
    [0086] [0086] Example 8 - The slide ring set, from one or more of Examples 1 to 7, the interface being rotatable with the second connector in relation to the first connector.
    [0087] [0087] Example 9 - A surgical drive shaft assembly comprising a proximal drive shaft portion and a rotary distal drive shaft portion in relation to the proximal drive shaft portion. The proximal drive shaft portion comprises a proximal connector supported on the proximal drive shaft portion and the first conductors mounted on the proximal connector. The distal drive shaft portion comprises a distal connector supported on the distal drive shaft portion, the second conductors mounted on the distal connector, the second conductors being spaced laterally and radially from each other, and a gasket disposed between the connector proximal and the distal connector, the gasket being configured to block the flow of water towards at least one of the first conductors and the second conductors.
    [0088] [0088] Example 10 - The surgical drive shaft set of Example 9, the gasket comprising openings configured to receive the second conductors.
    [0089] [0089] Example 11 - The surgical drive shaft set of one or more of Examples 9 to 10, the gasket comprising step elements that protrude from it.
    [0090] [0090] Example 12 - The surgical drive shaft set of Example 11, the step elements being concentric.
    [0091] [0091] Example 13 - The surgical drive shaft assembly, according to one or more of Examples 9 to 12, the gasket being flexible.
    [0092] [0092] Example 14 - The surgical drive shaft assembly, according to one or more of Examples 9 to 13, the gasket being comprised of an elastomeric material.
    [0093] [0093] Example 15 - The surgical drive shaft assembly, according to one or more of Examples 9 to 14, the gasket being fixed to the distal connector.
    [0094] [0094] Example 16 - The surgical drive shaft assembly, according to one or more of Examples 9 to 15, with the gasket rotating with the distal connector in relation to the proximal connector.
    [0095] [0095] Example 17 - A slip ring set for use with a surgical drive shaft set. The slip ring assembly comprises a slip ring, a first conductor mounted on the slip ring and a rotary switch in relation to the slip ring. The slip ring assembly further comprises a second conductor mounted to the switch and a flexible member disposed between the slide ring and the switch. The flexible member comprises a body portion and the flexible portions extending from the body portions, the flexible portions being elastically deformed against the sliding ring.
    [0096] [0096] Example 18 - The slip ring assembly, according to Example 17, with the body portions comprising an opening configured to receive the second conductor.
    [0097] [0097] Example 19 - The slip ring assembly, according to one or more of Examples 17 to 18, the flexible member being fixed to the switch.
    [0098] [0098] Example 20 - The slip ring assembly, according to one or more of Examples 17 to 19, the flexible member being rotatable with the switch in relation to the slip ring.
    权利要求:
    Claims (20)
    [1]
    1. Slip ring set for use with a surgical drive shaft set, the sliding ring set being characterized by comprising: a first connector; a first conductor mounted on the first connector; a second rotatable connector in relation to the first connector; a second conductor mounted on the second connector, the second conductor being in contact with the first conductor; and an interface between the first connector and the second connector, the interface being configured to retain water away from at least one of the first conductor and the second conductor.
    [2]
    2. Slip ring assembly according to claim 1, characterized in that the interface comprises a body portion including an opening for receiving the second conductor.
    [3]
    3. Slip ring assembly according to claim 1, characterized in that the interface comprises ribs that protrude from the body portion.
    [4]
    4. Slip ring assembly according to claim 3, characterized by the ribs being concentric.
    [5]
    5. Slip ring assembly according to claim 1, characterized in that the interface is flexible.
    [6]
    6. Slip ring assembly according to claim 1, characterized in that the interface is comprised of an elastomeric material.
    [7]
    7. Slip ring assembly according to claim 1, characterized in that the interface is fixed to the second connector.
    [8]
    8. Slip ring assembly according to claim 7, characterized in that the interface is rotatable with the second connector in relation to the first connector.
    [9]
    9. Surgical drive shaft set, characterized by comprising: a portion of the proximal drive shaft, comprising: a proximal connector supported on the proximal drive shaft portion; and first conductors mounted on the proximal connector; and a portion of the rotary distal drive shaft relative to the proximal drive shaft portion, the distal drive shaft portion comprising: a distal connector supported on the distal drive shaft portion; second conductors mounted on the distal connector, the second conductors being spaced laterally and radically from each other; and a gasket arranged between the proximal connector and the distal connector, the gasket being configured to resist the flow of water towards at least one of the first conductors and the second conductors.
    [10]
    10. Surgical drive shaft assembly, according to claim 9, characterized in that the gasket comprises openings configured to receive the second conductors.
    [11]
    11. Surgical drive shaft assembly, according to claim 10, characterized by the gasket comprising step elements that protrude from it.
    [12]
    12. Surgical drive shaft assembly, according to claim 11, characterized by the step elements being concentric.
    [13]
    13. Surgical drive shaft assembly, according to claim 9, characterized in that the gasket is flexible.
    [14]
    14. Surgical drive shaft assembly according to claim 9, characterized in that the gasket is comprised of an elastomeric material.
    [15]
    15. Surgical drive shaft assembly, according to claim 9, characterized in that the gasket is fixed to the distal connector.
    [16]
    16. Surgical drive shaft assembly, according to claim 15, characterized in that the gasket is rotatable with the distal connector in relation to the proximal connector.
    [17]
    17. Slip ring set for use with a surgical drive shaft set, the sliding ring set being characterized by comprising: a slip ring; a first conductor mounted on the slip ring; a rotary switch in relation to the slip ring; a second conductor mounted on the switch; and a flexible member disposed between the sliding ring and the switch, the flexible member comprising: a body portion; and flexible portions extending from the body, the flexible protuberances being elastically deformed against the slip ring.
    [18]
    18. Slip ring assembly according to claim 17, characterized in that the body portion comprises an opening configured to receive the second conductor.
    [19]
    19. Slip ring assembly according to claim 17, characterized in that the flexible member is fixed to the switch.
    [20]
    20. Slip ring assembly according to claim 19, characterized in that the flexible member is rotatable with the switch in relation to the slip ring.
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    同族专利:
    公开号 | 公开日
    US20190000470A1|2019-01-03|
    JP2020525230A|2020-08-27|
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    WO2019002973A1|2019-01-03|
    CN110799120A|2020-02-14|
    EP3420941B1|2021-02-17|
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    法律状态:
    2021-11-03| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    优先权:
    申请号 | 申请日 | 专利标题
    US15/635,790|2017-06-28|
    US15/635,790|US20190000470A1|2017-06-28|2017-06-28|Surgical shaft assemblies with flexible interfaces|
    PCT/IB2018/053698|WO2019002973A1|2017-06-28|2018-05-24|Surgical shaft assemblies with slip-ring interfaces|
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