• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A medical connecting device, having a proximal end and a distal end; the medical connecting device comprises an insulating layer (3, 123, 222, 322) and a spiral tube (2, 124, 223, 323), the insulating layer (3, 123, 222, 322) covering the outermost layer of the whole device; the spiral tube (2, 124, 223, 323) has a conductive hollow tubular structure; and the spiral tube (2, 124, 223, 323) has a spiral structure, and the pitch of the spiral structure gradually changes in the direction from the proximal end to the distal end. The medical connecting device is able to integrate multiple functions such as electrical conductivity, hydrotubation, powder spraying, vacuum suction, sealing, insulation, and support.
    公开号:ES2836537A2
    申请号:ES202190026
    申请日:2019-02-25
    公开日:2021-06-25
    发明作者:Tang Zhi；Fan Mingqiao；Xie Huan；Sha Deqing；Li Changqing；Leng Derong；Liu Chunjun
    申请人:Micro Tech Nanjing Co Ltd；
    IPC主号:
    专利说明:

    [0004] [0001] This publication refers to a connecting medical device in the field of medical instruments, and more specifically, to an accessory for an endoscope that integrates multiple functions such as electricity conduction, liquid passage, powder spraying, negative pressure suction, sealing, insulation and support.
    [0008] [0002] In the last 50 years, the endoscopic technique has progressed from the diagnosis of the disease to the treatment of it and has established itself as a fairly effective and reliable treatment, and even as the first treatment option, for some digestive diseases . With the development of the endoscopic technique in recent years, endoscopic tissue biopsy, endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD) have become widely used and are gradually becoming the first option for the treatment of gastrointestinal bleeds, polypectomies and early cancers. In particular, DSE plays a critical role in the detection, diagnosis, and resection of early-stage cancers.
    [0010] [0003] In various clinical departments, direct observation and in vivo treatment is required for the diagnosis, prognosis, and treatment protocols of various diseases. Previously, all of these required invasive surgical procedures such as laparotomy or thoracotomy. However, thanks to the popularity that endoscopic surgical instruments have gained in recent years, they can be performed with a laparoscope or thoracoscope in a minimally invasive way.
    [0012] [0004] Endoscopic submucosal dissection (ESD) is a minimally invasive endoscopic procedure for submucosal dissection of lesions larger than 2 cm using high-frequency instruments. Much of the mucosa is resected using DSE, a complicated and usually time-consuming procedure and an endoscope. First, the endoscope is introduced into the body to find the pathological tissue and through a channel of the endoscope a high frequency electric scalpel is inserted and the pathological changes are marked. After this, the instrument is removed and an injection needle is used for the submucosal injection. After injection, the pathological tissue is resected with a suitable high-frequency electrosurgical unit. If bleeding occurs during the procedure, it will be necessary to use the hemostatic forceps for electrocoagulation hemostasis. Successfully resecting an early-stage cancer of approximately 3 cm takes 1 to 2 hours. Instruments are changed frequently during the procedure, which slows down the process and increases the patient's pain. To carry out such complicated procedures with the endoscope, it is advisable to be able to use a product that integrates the functions of marking, washing, injection, resection, hemostasis and the like. For this, the connector device for said product must be highly functional; otherwise, constantly changing instruments results in the procedure being lengthy.
    [0014] [0005] The conventional accessory connecting tube of the endoscope has only one function, only performs a partial function, and lacks versatility. For example, the connecting tube for the injection needle is generally made of polymeric materials, which can perform the function of passing liquid, but not conducting electricity. Another example, the connecting tube for the high-frequency electric scalpel is sometimes a stainless steel tube that performs the function of liquid passage and electricity conduction, but has a uniform overall structure with a rigid front end, which makes it difficult to the passage of the endoscope through a curved channel. Also, the connecting tube for hemostats is generally made of solid stainless steel wire or cable, which can only perform the function of conducting electricity and cannot perform the function of passing liquid. The coated spring tube of the prior art is generally formed of coiled wires, so the general characteristics of the structure are the same from front to rear, and they do not provide flexibility or rigidity. To try to achieve greater functionality of the endoscope accessory, a connecting medical device had to be developed capable of integrating multiple functions such as electricity conduction, liquid passage, powder spraying, negative pressure suction, isolation, sealing and support, while achieving flexibility and rigidity.
    [0018] [0006] The end near the operator is defined as the proximal end and the end away from the operator is defined as the distal end.
    [0020] [0007] A medical connector device having a proximal end and a distal end, including an insulating layer and a spiral tube, and with an insulating layer covering the outer layer of the device; wherein the spiral tube has a conductive hollow tubular structure in the inner layer of the device and a spiral structure with an angle that gradually changes from the proximal end to the distal end. The angle can gradually decrease from the proximal end to the distal end. The angle of the distal end makes it flexible to easily pass a medical device through a curved channel, and a greater angle at the proximal end provides support and facilitates the introduction of medical instruments to the distal end. The angle can gradually increase from the proximal end to the distal end, with the distal end being greater and the proximal end being less. The angle can also be increased and then decreased from the proximal end to the distal end, or decreased and then increased from the proximal end to the distal, or the same angle can be set. The minimum space between the spiral structures is 0.003mm, and the minimum angle of each wire is 0.03mm. Preferably, the spiral tube will be of a conductive material.
    [0022] [0008] The spiral tube will have the spiral structure from the proximal end to the distal end. Also contemplated is the possibility that the proximal and distal ends of the coil tube may each have, or both, a partial non-coil structural zone. The spiral tube can adopt the same angle configuration, a gradual angle configuration, a combination of several same angle configurations, and a combination of the same angle and gradual angle configurations.
    [0024] [0009] The connecting medical device of the present publication also includes one or more seals connected to the distal end, the proximal end, or both, of the coiled tube. The seal structure is not flat and can be concave-convex, concave or convex type. The shape of the convex part of the non-planar structure may be a semicircle, a rectangle, a trapezoid or toothed.
    [0026] [0010] The insulating layer of the present publication is made of a polymeric material and has a minimum thickness of 0.03 mm. The polymeric material is polytetrafluoroethylene, fluorinated ethylene propylene or polyethylene. The insulating layer covers an outer surface of the spiral tube by pyrocondensation, welding, gluing, etc.
    [0028] [0011] The connecting medical device of the present publication includes the insulating layer, the spiral tube and the seal. The insulating layer is located on the outer surface of the device, providing insulation and protection, and also a sealing effect. The spiral tube has the function of conducting electricity and also with a lumen channel, performing functions such as the injection of liquids. The spiral tube includes the spiral structure, whose orientation is not fixed, but various angles can be designed according to different requirements, and the spiral tube can be used to inject liquid, spray powder, take samples through negative pressure suction, etc. The end with the smallest angle of the connecting medical device is flexible and can easily pass through the channel of an endoscope, and the end with the largest angle is relatively rigid and assists in executing the process. The distal and proximal ends have uncoiled structural zones. A smaller non-spiral structural zone can reduce the length of a rigid section of the product. A larger non-spiral structural zone facilitates insertion of the device. The seal structure is not flat and can be of several types: concave-convex, concave or convex. The seal can be connected with the spiral tube to perform the sealing function. When the non-spiral structural zone at one end of the spiral tube is relatively long, the seal can only be connected at the other end of the spiral tube. When the lengths of the non-spiral structural zones at both ends are the same or similar, the seal can be connected at both ends of the spiral tube. The insulating layer covers the outer side of the seal, through the non-flat structure of the seal the pressure is gradually reduced, improving the sealing effect.
    [0030] [0012] The insulating layer is on the outer layer of the entire device. The spiral tube has a hollow tubular structure made of a conductive material and is located in the inner layer of the entire device, and the spiral tube includes the spiral structure.
    [0032] [0013] The insulating layer is made of a polymeric material and covers the surfaces of the spiral tube and the seal. The material includes, but is not limited to, polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP) and polyethylene (PE), and has a minimum thickness of 0.03mm. The insulating layer is placed on the surface of the spiral tube by pyrocondensation, welding, gluing or some similar process. The insulating layer provides the product with good resistance to pressure, with a dielectric performance of not less than 300 Vp, and the product achieves good sealing performance, being able to withstand a pressure of not less than 2 atm.
    [0034] [0014] The spiral tube is made of conductive materials that allow the function of conducting electricity, and the lumen channel allows the functions of liquid injection and powder spraying. One end of the hollow frame is connected to the electrical part of an instrument, such as an electrode, a hemostatic head, and a needle-like frame, to enable resection, hemostasis, etc. functions. of the product. The spiral tube has a minimum outside diameter of 0.3 mm and a wall with a minimum thickness of 0.05 mm. Since the wall thickness of the spiral tube is small, a large lumen space can be provided. The spiral tube with a small outer diameter contributes to a diameter Reduced exterior of the entire instrument, which facilitates operation and adapts the product to a smaller lumen of the endoscope. Also, compared with a common spring tube, the spiral tube has a lower resistance value not exceeding 20 Q, which allows more electricity to the instrument with the same voltage and improves the working efficiency. The outer layer of the spiral tube is covered with the insulating layer, so that the user is well protected against injury from electric shock.
    [0036] [0015] The spiral tube incorporates a hollow tubular structure offering a channel that allows functions such as liquid passage, powder spraying, negative pressure suction and the like. Injection of normal saline and indigotine, powder spraying or sampling by negative pressure suction and the like can be performed clinically. The spiral tube is provided with a spiral structure, preferably, the angle of the distal end of the spiral tube is small and provides elasticity, providing good bending performance and facilitating the passage of the product through the curved lumen channel of the endoscope. The angle of the proximal end of the coil tube is large, which provides good support performance. In addition, the angle can be adjusted according to different flexibility requirements, to adapt to the requirements of different products. The angle of each spiral tube thread can adopt the same angle setting, a gradual angle setting (angles with different or equal sequences), a combination of several same angle settings, and a combination of the same angle settings, gradual angle , etc. Other different spiral structures can also be considered depending on the requirements. Preferably, a combination of the same angle and gradual angle settings should be selected.
    [0040] [0016] Fig. 1A is a schematic view of the distal and proximal ends connected with a seal, respectively, of the spiral tube of the device of the present publication.
    [0041] [0017] Fig. 1B is a schematic view of the distal end connected to the seal of the spiral tube device this publication.
    [0042] [0018] Fig. 2 is a schematic view of the device of the present publication when applied to a high frequency electric scalpel.
    [0043] [0019] Fig. 3 is a schematic view of the device of the present publication when applied to an ultrasonically aspirated biopsy needle.
    [0044] [0020] Fig. 4 is a schematic view of the device of the present publication when applied to a pair of hemostats.
    [0045] [0021] Fig. 5 is a schematic view of the seal of the device of the present publication.
    [0049] [0022] In order to further clarify the objects, aspects and advantages of the present publication, we will describe them in more detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present publication, and are not intended to limit it. The scope is not limited to implementation examples, but rather to applications. To provide a clearer description and to allow those skilled in the art to understand the application, it will not be necessary for part of the illustrations to show their relative dimensions, some dimensions may appear exaggerated in proportion to other relevant dimensions, and in order that the illustration is more concise, some irrelevant or unimportant details may be omitted.
    [0051] [0023] The device of the present publication can be used, among others, in the following embodiments, and also in other endoscopic consumables, such as the combined scalpel and hemostat instruments, bipolar probes and the instruments that combine probes and needles . In addition, the connecting medical device can adopt different sizes, and various connecting devices of various sizes can be combined and fitted in a single product.
    [0053] [0024] As shown in Figs. 1A and 1B, the medical connector device of the present publication includes: a spiral tube 2, a seal 1 and an insulating layer 3 that covers the external surfaces of the spiral tube 2 and seal 1. The spiral tube 2 includes a structure in spiral, and different angles can be designed based on different requirements. Preferably, the coil tube 2 will be provided with a non-coil distal structural area 4, a non-coil proximal structural area 6, and a structural area with an intermediate coil 5. A coil frame 8 near the proximal end has been designed to have the same angle configuration, and a spiral structural region 7 near the distal end that has an angle tapering from the proximal to the distal end. It is also possible to design the intermediate spiral structural zone 5 to have an angle that gradually tapers from the proximal end to the distal end. A configuration in which the angle decreases and then increases from the proximal to the distal end can also be adopted, a combination of several configurations of the same angle, a combination of the settings of the same angle, gradual angle, etc. Also, other different spiral structures (not shown) can be designed according to requirements. The distal non-coil structural zone is short, which shortens the rigid span of the product. The angle of the distal end is small, which provides flexibility and facilitates the passage of medical devices through the curved channel of an endoscope. The proximal end angle is large and provides good bearing performance. The proximal non-coil structural zone is long, which facilitates insertion. The middle span and the proximal end are relatively rigid, providing supportive performance. The coiled tube 2 can have the function of conducting electricity and provides a lumen channel, allowing functions such as injection of liquids. As seen in Fig. 1A, when the lengths of the distal non-coil structural zone 4 and the proximal non-coil structural area 6 are similar, both ends of the coil tube 2 may be provided with seal 1. As seen in Fig 1B, when the proximal non-coil structural zone 6 of coil tube 2 is larger, coil tube 2 connects to seal 1 only at the distal end. Insulating layer 3 covers the outer surfaces of spiral tube 2 and seal 1, providing insulation and protection, and also a sealing effect. Fig. 5 is a schematic view showing a seal structure, which is a non-planar structure that can be of various types: concave-convex, concave or convex. The shape of the convex part of the non-planar structure may be a semicircle, a rectangle, a trapezoid or toothed. Seal 1 can be connected with spiral tube 2 to perform the sealing function.
    [0055] [0025] Example of embodiment 1:
    [0056] [0026] Fig. 2 is a schematic view of the device of the present publication when applied to a high frequency electric scalpel. The high frequency electrosurgical unit incorporates an electrode section 110, a transport section 120, and an operating section 130. An electrode 111 incorporates a hollow tubular portion and a protrusion. The shape of the electrode is not limited to that structure and other structures can be implemented with the hollow tubular part. The hollow tube portion of the electrode can perform the functions of liquid passage, powder transport, resection and the like. Plug 121 serves as an insulator. The plug 121 adopts a tubular structure and is made of heat resistant materials with insulating properties such as zirconium oxide. The plug 121 is permanently connected to the distal end of an outer tube 125 and is used to limit the extension and retraction of the distal end of the electrode 111, and the size of an inner opening of the plug 121 is greater than the outer diameter of the plug. hollow tubular part of the electrode. Seal 122 is made of a conductive material, adopts a concave-convex structure that facilitates sealing, and is permanently connected to the proximal end of electrode 111. Seal 122 is used with plug 121 to limit sealing. extension length of electrode 111. Insulating layer 123 is made of insulating material such as PTFE, covers the surfaces of seal 122 and spiral tube 124, and provides sealing and insulating functions. The spiral tube 124 is made of a conductive material and has a lower resistance than a common spring tube, so that a higher current can be generated by forming a loop, and the high-frequency electric scalpel can achieve higher efficiency. Spiral tube 123 is also provided with a lumen. Since the outer diameter is the same, and the wall thickness is small, a larger lumen space can be provided for liquid injection or powder spraying. The outer tube 125 extends from the proximal end to the distal end and contains an internal connecting device that facilitates insertion of the electrode. The distal end of the outer tube 125 is connected to the plug 121, and the proximal end is attached to a positioning structure 131. The positioning structure 131 includes a Luer taper 1311 as an inlet port for liquid or powder products. Reference numeral 132 refers to a central rod, and a slider 133 is movable back and forth along the central rod 132. The slider 133 is connected to the proximal end of the spiral tube 124, and the latter, to its Once, it is controlled to extend or retract the active electrode 111. The slider 133 is further provided with a conductive connector 1331 and a Luer cone 1332. The conductive connector 1331 is connected to an external high-frequency generator, and the Luer cone 1332 is the inlet port for liquid or powder products. Here, the spiral tube 124 adopts a structure that combines the gradual angle and same angle configurations, and is designed to have an angle that gradually tapers from the proximal end to the distal end. The angle near the distal electrode is smaller, which provides better flexibility and makes it easier to pass the HF electrosurgical knife through the curved channel of the endoscope. The angle near the proximal operating section 130 is greater, providing greater rigidity and support, which makes it easier for the user to insert the product into the lumen channel of the endoscope. A portion of the non-spiral structural zone is reserved next to the slider 133, which facilitates advancement to extend and retract the electrode 111. The spiral tube may also contain threads with the same angle configuration, a gradual angle configuration, or a combination of several configurations of the same angle according to the requirements.
    [0058] [0027] When used, the slider 133 is withdrawn to retract the electrode 111 to one end of the plug 121, and then the high frequency electrosurgical knife is inserted into the channel of the endoscope. The high-frequency electrosurgical unit can be gently inserted through the distal curved structure of the endoscope because the angle of the distal end of the coil tube 124 is small. The proximal end of the coiled tube 124 is angled and relatively rigid so that the user can insert the electrosurgical knife high frequency through the distal end of the endoscope. When the high-frequency electrosurgical unit is placed in the field of view of the endoscope, high-frequency electricity is conducted through the conductive connector. Since seal 122 and spiral tube 124 are conductive, high frequency electricity can be conducted to electrode length 110 to accomplish marking. After marking, the slider 133 is inserted to extend the electrode 111 for resection by the pushing effect of the uncoiled structural zone of the proximal end of the coil tube 124. During resection, if necessary, inject fluid to elevate a mucosal tissue , a syringe can be attached externally to Luer cone 1332 to inject fluid and lift tissue, forming a liquid cushion layer, known as a "water cushion," under the mucous membrane. The 'water cushion' effectively insulates the muscle layer and injury, and effectively prevents heat conduction, clearing the surgical field of vision and greatly reducing the risk of bleeding as the blood vessels are compressed and sealed by the water mattress. In the event of tissue bleeding, the bleeding can be stopped and the site cleaned by injecting fluid with an external syringe into the 1332 or 1311 Luer cone or by spraying hemostatic powder through the lumen channel of the hollow part of the tube. coil 124 or a space formed between insulating layer 123 and outer tube 125.
    [0060] [0028] Example of embodiment 2:
    [0061] [0029] Fig. 3 is a schematic view of the device of the present publication when applied to an ultrasonically aspirated biopsy needle. The ultrasonic aspiration biopsy needle incorporates a puncture section 210, a transport section 220, and an operating section 230. Here, reference numeral 211 refers to a puncture needle, which incorporates a tubular structure. hollow and a needle tip to puncture the sample; reference numeral 221 refers to a seal with a non-planar structure that facilitates sealing and is permanently connected to the puncture needle 211; an insulating layer 222 covers the surfaces of seal 221 and spiral tube 223, and provides a sealing effect; an outer tube 224 extends from the proximal end to the distal end, contains an internal connection device, and facilitates insertion of the puncture needle 211; a central rod 231 connects to the proximal end of the outer tube 224, and a slider 232 can move along the central rod 231 and incorporates a Luer taper 2321. The spiral tube 223 adopts a structure that combines gradual angle configurations and same angle. The angle close to the distal puncture needle 211 is small, which provides good flexibility and facilitates passage of the biopsy needle through the curved channel of the endoscope. The angle close to the proximal operating leg 230 of the coil tube 223 is large, providing good performance and making it easy for the user to introducing the ultrasonic aspiration biopsy needle into the lumen canal of the endoscope. A portion of the uncoiled structural zone is kept at one end of the coiled tube near the slider, which facilitates puncture. The spiral tube can also contain threads with the same angle configuration, a gradual angle configuration, or a combination of several configurations of the same angle depending on the requirements.
    [0063] [0030] When the biopsy needle is used, it is first inserted into the canal of the endoscope. The angle of the spiral tube at the distal end of the ultrasonic aspiration biopsy needle is small, thereby facilitating passage through the curved structure at the distal end of the endoscope. The angle of the spiral tube at the proximal end is large and relatively rigid, making it easy for the user to introduce the product through the distal end of the endoscope. When the ultrasonically aspirated biopsy needle enters the field of view of the endoscope, the length of needle 211 extending out of outer tube 224 can be controlled by adjusting slider 232. Following puncture, a vacuum device is attached to the Luer cone through a channel of the spiral tube 223 to suck the tissue into the puncture needle to take the sample.
    [0065] [0031] Example of embodiment 3:
    [0066] [0032] Fig. 4 is a schematic view of the device of the present publication when applied to a pair of hemostats. The hemostatic forceps incorporate a holding section 310, a transport section 320, and an operating section 330. Reference numeral 311 here refers to a hemostatic head, which is not limited to such shape, but can be shaped like a scissor and saw tooth. The hemostatic head 311 is used for electrocoagulation or resection hemostasis, and is movably connected to a fixture 312. The fixture 312 is made of a conductive material, and is used to support the hemostatic head 311 and facilitate opening and insertion closure of the head 311, its inner opening being greater than the outer diameter of the pull rod 313. The seal 321 is made of a conductive material and has a non-planar structure that facilitates sealing, and the proximal end of the seal 321 is connected to fastener 312. Reference numeral 322 refers to an insulating layer made of PTFE and other insulating materials. Insulating layer 322 covers the surfaces of seal 321 and spiral tube 323 and provides sealing and insulation functions. The spiral tube 323 is made of a conductive material and has a lower resistance than a common spring tube, so that a higher current can be generated when looping, and higher efficiency can be achieved. The spiral tube has a smaller outer diameter than other similar products because it has a smaller wall thickness due to the same inner diameter, so that the hemostatic forceps can fit a larger endoscope lumen channel. little. Reference numeral 324 refers to a pull wire, which is connected to pull rod 313 at its distal end and may be a steel wire or cable, used to open or close hemostatic head 311. Reference numeral 331 refers to a positioning structure, connected with a 3311 conductive connector at its proximal end, used to connect to a high frequency power source, driving a high frequency current to the end of the hemostat head through the tube coil 323 to close hemostatic head 311 for electrocoagulation hemostasis. Reference numeral 332 refers to a center rod, a slider 333 can slide down the center rod 332, and the slider 333 can be moved back and forth along the center rod to open and close the hemostatic head 311. The spiral tube 323 has a structure that combines the gradual angle and same angle configurations. The angle near the distal end is small, providing good flexibility and facilitating the passage of hemostats through the curved channel of the endoscope. The angle near the proximal end of the coil tube 323 is large, providing good performance and facilitating the user to insert the hemostatic forceps into the lumen channel of the endoscope. A portion of the uncoiled structural zone is kept at one end of the coil tube near the slider, facilitating insertion. The spiral tube can also contain threads with the same angle configuration, a gradual angle configuration, or a combination of several configurations of the same angle depending on the requirements.
    [0068] [0033] When used, the slider 333 is withdrawn to close the hemostatic head 311, and then the distal end of the hemostats is inserted into the channel of the endoscope. The angle of the distal end of the hemostats is small, which facilitates the passage of the product through the curved structure of the endoscope. The angle of the proximal end of the coil tube is large and rigid, making it easy for the user to insert the hemostats through the distal end of the endoscope. When hemostatic forceps enter the field of view of the endoscope, high-frequency electricity can be conducted through a conductive connector 3311 to the hemostatic head thanks to the conductive function of spiral tube 323. Slider 333 is removed through the proximal end to close the hemostatic head 311 for electrocoagulation hemostasis. The outer insulating layer 322 is capable of providing an insulating and protective effect. In the event that a hemorrhage seriously affects the field of vision, the site of the hemorrhage can be cleaned by injecting liquid with an external syringe into the Luer cone 3312, through a space formed between the hollow part of the spiral tube 323 and the pull cord 324.
    [0069] [0034]
    The above examples are merely those recommended for this application to enable those skilled in the art to understand or practice the descriptions of this application. Those skilled in the art will find that various modifications and combinations of these embodiments can easily be made, and that the general principles set forth herein can be implemented in other embodiments without departing from the scope of application. Therefore, the present application should not be limited to the exemplary embodiments shown in the present document, but should be adjusted to a greater scope consistent with the original principles and characteristics presented in this document.
    权利要求:
    Claims (13)
    [1]
    A connecting medical device having a proximal end and a distal end, including an insulating layer and a spiral tube, and with an insulating layer covering the outer layer of the device; wherein the spiral tube has a conductive hollow tubular structure in the inner layer of the device and a spiral structure with a gradually changing angle from the proximal end to the distal end.
    [2]
    2. Medical connector device according to application 1, in which the angle is gradually reduced from the proximal end to the distal end, a smaller angle at the distal end gives flexibility to easily pass a medical device through a curved channel, and a greater angle at the proximal end provides support and facilitates the introduction of medical instruments to the distal end.
    [3]
    3. Connector medical device according to application 1, in which the angle gradually decreases and increases from the proximal end to the distal end.
    [4]
    4. Connector medical device according to application 1, in which the angle gradually increases from the proximal end to the distal end.
    [5]
    5. Medical connector device according to application 1, in which the spiral tube is made of a conductive material.
    [6]
    6. Connecting medical device according to application 1, in which the spiral tube has the spiral structure from the proximal end to the distal end.
    [7]
    7. Medical connector device according to application 1, in which the proximal and distal ends of the spiral tube may have parts of non-spiral structural zones.
    [8]
    8. Medical connector device according to application 1, including one or more seals connected to the distal end, the proximal end, or both, of the coiled tube.
    [9]
    9. Connector medical device according to application 8, in which the seal has a non-flat structure.
    [10]
    10. Connector medical device according to application 9, in which the non-planar structure is of the concave-convex, concave or convex type, and the convex part of the non-planar structure could be a semicircle, a rectangle, a trapezoid or toothed.
    [11]
    11. Connector medical device according to application 1, in which the insulating layer is made of polymeric material.
    [12]
    12. Medical connector device according to application 11, in which the polymeric material is polytetrafluoroethylene, fluorinated ethylene propylene or polyethylene.
    [13]
    13. Medical connector device according to application 1, in which the insulating layer covers the outer surface of the spiral tube by means of pyro-condensation, welding, gluing, etc.
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    同族专利:
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    US20220000344A1|2022-01-06|
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    KR20210001500U|2021-07-01|
    引用文献:
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    EP2787904B1|2012-10-06|2015-07-29|Steerable Instruments BVBA|Crosstalk reducing handle for surgical articulated instruments|
    CN103750901B|2014-02-14|2016-01-20|徐美东|A kind of Multifunctional high-frequency incision knife|
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    法律状态:
    2021-06-25| BA2A| Patent application published|Ref document number: 2836537 Country of ref document: ES Kind code of ref document: A2 Effective date: 20210625 |
    优先权:
    申请号 | 申请日 | 专利标题
    CN201811390053.3A|CN111202485A|2018-11-21|2018-11-21|Medical connecting device|
    PCT/CN2019/076046|WO2020103350A1|2018-11-21|2019-02-25|Medical connecting device|
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