Digital vacuum regulation device (Machine-translation by Google Translate, not legally binding)

专利摘要:
Digital vacuum regulation device. The present invention relates to a digital vacuum regulating device. The device comprises a digital vacuum gauge with a display, a vacuum regulating body to which the digital vacuum gauge is connected, a vacuum sensor to detect a negative pressure and send a level of the negative pressure to the digital vacuum gauge and in which the vacuum of the regulating body is actuated to regulate the negative pressure to the desired level as a function of the negative pressure level displayed on the digital vacuum gauge. (Machine-translation by Google Translate, not legally binding)
公开号:ES2860350A2
申请号:ES202130171
申请日:2021-03-01
公开日:2021-10-04
发明作者:Roberto Paratico
申请人:Flow Meter SpA；
IPC主号:

专利说明:

[0004] The present invention relates to medical and hospital healthcare vacuum systems and in particular to a digital vacuum gauge for a vacuum regulator suitable for all continuous suction applications for medical use in hospitals and residences.
[0005] Known technique
[0006] As is well known in this technical sector and in the healthcare field, in many circumstances suction systems are required, for example systems for applying a negative pressure (vacuum) in order to suck fluids from a patient.
[0007] In these cases, it is necessary to ensure that the negative pressure level is kept within the values required for a particular treatment. To achieve this, there are manual controls available, known as vacuum regulators, through which the level of negative pressure (ie depression) can be controlled and varied. There are also vacuum gauges, incorporated or combined with the vacuum regulator, which monitor the level of depression or negative pressure.
[0008] In the past, mechanical vacuum regulating systems were used that consisted of at least one valve controlled manually via a control knob. An analog-type vacuum gauge was also provided that included a Bourdon spring with dial and indicator needle that displayed the pressure. Every now and then an operator would take a look at the dial and needle to make sure the vacuum level remained stable at the desired pressure.
[0009] These systems that we could define "in the old way" for the hospital environment, were not always practical in emergency situations, for example, in a paramedic environment, at the scene of an accident or in an ambulance. For example, it might be necessary having to repeatedly check the dial of the needle and the paramedic may not read the dial correctly.
[0010] Document US 2013/267919 A1 describes a suction regulator consisting of a main valve fixed to a vacuum source and a micro-locking solenoid valve connected to an electromechanical actuator whose timing and control depend on a low-power microcontroller.
[0011] However, this regulator does not allow a control of the operation, the control parameters and the system configurations, making it impractical for different users.
[0012] Document US 2006/122558 A1 describes a digitally controlled vacuum cleaner with a processor that allows the user to select the operating conditions between a or various default settings.
[0013] However, this device is external to a regulator and therefore requires an association between two devices that are not always compatible with each other.
[0014] Vacuum regulation is also used in other contexts and with different functions, as in the case of chest drainage, in which devices such as that described, for example, in document EP 1894584 A2 are applied.
[0015] Nowadays it is necessary to have a vacuum regulator with a more precise reading of the vacuum, preferably a regulator that offers a better visual reading, such as that which a digital numerical LCD screen could offer.
[0016] Preferably, a system of this type should also be independent of the electrical network (that is, it does not need electrical wiring in a building), and be powered by a battery for most applications, thus allowing it to be used in any Part inside a structure or in open ground if necessary.
[0017] Preferably, furthermore, the negative pressure (vacuum) display will be incorporated into the body of a manual vacuum regulator so that the digital negative pressure (vacuum) display is presented in a single compact unit.
[0018] Preferably, the vacuum regulator will be designed to operate on minimal power so that it can be powered by a long-life battery, a rechargeable battery, a 3-volt battery, or solar power, if desired. Connections to the electrical network could also be incorporated so that they are available to be used, when needed, as an optional alternative.
[0019] Finally, it would be appropriate for the vacuum gauge to have an alarm associated with it, which will notify the operator if there is a deviation from a certain value.
[0020] Summary of the invention
[0021] One aspect of the present invention is to provide a digital vacuum gauge, or vacuum gauge, for a vacuum regulator consisting of a sensor to detect a pressure value, a central processing unit that receives a signal detected by the sensor and capable of also intermittently activate the sensor, a power supply built into the regulator, to generate a digital reading of negative pressure (vacuum).
[0022] In order to offer these advantages, the invention consists of a digital vacuum regulation device that is used in conjunction with a vacuum system in which an aspiration is performed for medical purposes, to aid in the monitoring and regulation of the depression necessary for the practice in use. The digital vacuum regulation device is suitable for all medical suction applications in hospitals and residences.
[0023] In an embodiment of the present invention, a digital vacuum regulating device may comprise a vacuum gauge or digital vacuum gauge with a display, a vacuum regulating body to which the digital vacuum gauge is connected, the digital vacuum regulating device further comprising a plurality of buttons for on / off or configurations arranged in the digital vacuum gauge, a vacuum sensor for detecting a negative pressure and sending a level of the negative pressure to the digital vacuum gauge, and in which the vacuum regulating body is actuated to regulate the negative pressure to the desired level in based on the level of negative pressure displayed on the digital vacuum gauge.
[0024] Through the operations of the buttons for settings, a user of the device can be authorized to set a timer for an automatic shutdown of the device, select a specific unit of measure, set a negative pressure full scale and zero. the device at any time to compensate for the variation in barometric pressure.
[0025] In an embodiment of the present invention, the digital vacuum regulating device may further comprise a vacuum regulating knob for regulating the negative pressure arranged in the vacuum regulating body.
[0026] In an embodiment of the present invention, the digital vacuum regulating device may further comprise an I / 0 button to block and reactivate a gas supply immediately arranged in the vacuum regulating body.
[0027] In an embodiment of the present invention, the digital vacuum regulating device may further comprise a security tank to protect the device connected to the vacuum regulating body.
[0028] In an embodiment of the present invention, the digital vacuum gauge may comprise a control unit, to which a display unit, a power management unit, an interface management unit, a memory unit are connected. , an alarm unit and a sensor unit.
[0029] In an embodiment of the present invention, the display unit can include the LCD screen and the sensor unit can include the vacuum sensor, wherein the vacuum sensor can send a detected negative pressure level to the sensor unit. control unit and the control unit can send a received negative pressure level to the LCD for display, and when a negative pressure level displayed on the LCD is higher than a preset level, the control unit can control the pressure unit. alarm to provide warning information.
[0030] In one embodiment of the present invention, the alarm information may include information in the form of text, lighting, audible information, or a combination of all of these.
[0031] In one embodiment of the present invention, the negative pressure level can be continuously displayed on the LCD of the digital vacuum gauge and updated each time the vacuum sensor detects negative pressure.
[0032] In an embodiment of the present invention, a digital display of the digital vacuum gauge may be a numerical display.
[0033] In an embodiment of the present invention, the management unit of the The feeder may include a battery to supply power to the device.
[0034] In an embodiment of the present invention, the digital vacuum regulating device may further comprise an inlet port for connection to a vacuum source and an outlet port for connection to a fluid collection device from a hospitalized patient. , and wherein the digital vacuum regulating device can be selectively connected between the inlet port and the outlet port.
[0035] The characteristics and advantages of the digital vacuum regulating device according to the invention will become clearer with the following description of an embodiment provided by way of an indicative example, although not limiting, in relation to the attached figures.
[0036] Brief description of the drawings
[0037] FIGURE 1 shows an illustrative diagram of a digital vacuum regulating device according to the present invention;
[0038] FIGURE 2 shows an example of the digital vacuum regulating device of FIGURE 1 according to the present invention.
[0039] FIGURE 3 shows an example of a digital vacuum gauge of the digital vacuum regulating device of FIGURE 2 according to the present invention;
[0040] FIGURE 4 shows an illustrative block diagram of a digital vacuum gauge according to the present invention.
[0041] FIGURE 5 shows another illustrative block diagram of a digital vacuum gauge according to the present invention.
[0042] Detailed description
[0043] The invention to be illustrated is, in one embodiment, described in relation to air and vacuum. However, the invention is applicable to any gas with a suitable selection of materials. Furthermore, the invention can be used for the aspiration of fluids in the medical field.
[0044] The device object of the present invention consists of a robust technopolymer body, with a quick I / 0 switching switch, a Soft Grip suction adjustment knob for easy management with a "Push & Lock" position system and a digital vacuum control with indicator with three possible end-of-scale options: - 25 kPa (250 mbar), -60 kPa (-600 mbar) and -100 kPa (-1000 mbar). The I / 0 quick toggle switch allows the operator to quickly lock out and reactivate the gas supply to the flowmeter, keeping the previous suction preset value unchanged.
[0045] With reference to FIGURE 1, an illustrative schematic of a digital vacuum regulating device 100 according to the present invention is shown. The digital vacuum regulating device 100 may comprise a digital vacuum gauge 110, a vacuum regulating body 120, and an optional safety tank 130. According to an embodiment of the present invention, the digital vacuum gauge 110 is connected to the body of vacuum regulating 120 and the vacuum regulating body 120 is connected to the safety tank 130.
[0046] In one embodiment of the present invention, the digital vacuum regulating device 100 may comprise a vacuum sensor (not shown in Figure 1) to detect a negative pressure and send a negative pressure level to the digital vacuum gauge. According to an embodiment of the present invention, the vacuum regulating body is actuated to regulate the negative pressure to the desired level as a function of the negative pressure level displayed on the digital vacuum gauge.
[0047] In an embodiment of the present invention, the vacuum regulating body 120 may comprise a vacuum regulating knob 121 to regulate the negative pressure and a button 123 I / 0 to immediately block and reactivate a gas supply.
[0048] In one embodiment of the present invention, the safety tank 130 can be used to protect the apparatus and the installation, in the event that the overflow valve in the main container does not function properly.
[0049] Referring to FIGURE 2, an example of the digital vacuum regulating device 200 is shown. As shown in FIGURE 2, the example digital vacuum regulating device 200 may consist of three parts, and in which the part The upper part is the digital vacuum gauge 210, the central part is the vacuum regulation body 220 and the lower part is the safety tank 230.
[0050] As can be seen in Figure 2, according to the present invention, the digital vacuum gauge 210 can carry a monochrome LCD screen with backlight, activated by the user, which indicates the value provided by the depression established by the end user and that can be read in mbar / hPa or in mmHg. The front part of the digital display is equipped with three buttons: one to turn the device on / off or to confirm the settings, and the other two with UP / DOWN arrows for the different settings. In fact, thanks to the digital vacuum gauge, the end user can:
[0051] - set the timer for automatic shutdown of the vacuum gauge.
[0052] - configure the LCD screen backlight on period (to save on battery consumption);
[0053] - select the scale of the measurement unit (mbar / hPa or mmHg);
[0054] - select a void value as the "alert" reference; and
[0055] - zero the device at any time to compensate for barometric pressure.
[0056] In one embodiment of the present invention, an exemplary digital vacuum regulating device 200 may comprise a protective silicone cap and a technopolymer backing to prevent damage to the pressure gauge caused by possible shocks received during shipping or use. The vacuum regulating body 220 can be manufactured with a threaded outlet fitting to screw the usual containers of collection of the aspirated fluids, or to be connected directly to the safety tank 230, by means of an integrated connection with specific quick release.
[0057] In an embodiment of the present invention, the safety tank 230 can be made of Technopolymer, and be completely autoclavable (134 ° C -18 min), with a floating overflow valve and a housing designed to accommodate an antibacterial filter that guarantees complete protection of the system against any microbial contamination. The collection tank of this safety device has a deliberately reduced capacity (approximately 50 ml) so that even a small presence of fluid can immediately activate the float valve to stop the suction.
[0058] The inlet connection with a quick release elastic ring, the 360 ° rotation position of the regulated vacuum outlet hose connector to feed the collection system and the 1/12 turn tank-lid quick locking system They allow simple and easy connection and removal of the safety tank for vacuum regulators and suction units. Everything is designed so that use by hospital staff is easy, fast, safe and simple.
[0059] Referring to FIGURE 3, an example of a digital vacuum gauge 210 of the digital vacuum regulating device 200 of FIGURE 2 in accordance with the present invention is shown. The operations of the digital vacuum gauge 210 will now be described with reference to FIGURE 3.
[0060] Digital vacuum gauge 210 can be turned on by pressing the ON / OFF button for at least one second and then releasing the button. Digital vacuum gauge 210 can perform all initial checks and then display the detected vacuum value. A battery status symbol, which will appear about five seconds after power-up, can be displayed on the LCD screen of the digital vacuum gauge 210 in order to properly check the charge status. Once turned on, the digital vacuum gauge 210 can read and display, depending on the settings, the negative pressure level with a full scale configured from a parameter S2 and with the unit of measurement configured with a parameter P1. The digital vacuum gauge 210 can only be turned off in the vacuum level reading function. To switch off, the ON / OFF button can be pressed for about 5 seconds, and only when the "OFF" symbol appears, the button is released and then the digital vacuum gauge 210 will turn off.
[0061] With the digital vacuum gauge 210 off, the "UP" and "DOWN" keys can be pressed at the same time and then the ON / OFF button can be pressed and released to access a service menu in which there can be at least six options , S1 - S6 for selection.
[0062] The following describes zeroing the barometric (ambient) pressure. Before carrying out this procedure, it is necessary to ensure that the vacuum gauge digital 210 is not connected to the vacuum source and that the pressure measured is actually the barometric pressure of the environment. The "UP (Zero)" key can be pressed for about three seconds and can then be released only when a countdown from 9 to 0 is displayed. After this time, the digital vacuum gauge 210 will have completed the zeroing process of the pressure gauge. ambient pressure This value is memorized in a non-volatile manner, therefore, each time the device is turned on with a similar ambient pressure, the digital vacuum gauge 210 will continue to display "0" [mbar or mmHg].
[0063] A calibrated tool can be used for sensor calibration. To do this, the calibrated tool can be connected in parallel to the sensor to be calibrated, with a suitable full scale (DUT). The accuracy of the reference tool must be at least twice that required by the DUT. A system, for example a pump, can be used to create a vacuum down to -100 kPa (-1000 mbar) (-750 mmHg) and a device for regulating the degree of suction. During calibration, digital vacuum gauge 210 can read sensor values every 10 ms (100 samples per second). The calibration coefficients K of the vacuum sensor are / are calculated based on the chosen points.
[0064] It should be noted that the calibration can be interrupted at any time by holding down the "ENTER" key for at least five seconds.
[0065] Referring to FIGURE 4, an illustrative block diagram 400 of the digital vacuum gauge according to the present invention is shown.
[0066] As can be seen in FIGURE 4, the digital vacuum gauge may comprise a central processing unit (CPU) or a controller, which controls all operations of the digital vacuum gauge. In an embodiment of the present invention, a battery charger input with Micro USB Type-C connector can be connected to a USB management, which connects to the CPU and to a battery power supply and charger. The power supply and charger can comprise a battery pack and can be connected to the CPU. A digital power ON / OFF switch can be connected between the power supply and charger and the CPU. A user interface switch can be connected to the digital power ON / OFF switch and to the CPU. An optional external data management interface can be connected to the CPU. The digital vacuum gauge may also comprise an LCD screen, a vacuum sensor, a bootloader interface, and an EEPROM memory, all of which are connected to the CPU. In an embodiment of the present invention, an analog front-end signal condition can be connected to the vacuum sensor and to the CPU. In one embodiment of the present invention, the LCD screen may further comprise an LCD screen backlight.
[0067] In an embodiment of the present invention, the digital vacuum gauge may further comprise an alarm unit (not shown). In one embodiment of In the present invention, the vacuum sensor can send a detected vacuum pressure level to the CPU and the CPU can send a vacuum pressure level to the LCD for display. In an embodiment of the present invention, when a negative pressure level displayed on the LCD screen is higher than a previously configured level, the CPU can control the alarm unit to provide alert information. In one embodiment of the present invention, the alarm information may include information in the form of text, lighting, audible information, or a combination of all of these.
[0068] With reference to FIGURE 5, another illustrative block diagram of the digital vacuum gauge according to the present invention is shown. The electronic circuitry shown in FIGURE 5 can be used by the digital vacuum gauge to sample a pressure signal at intervals. To store data, a memory 58 is connected to the controller 54.
[0069] To sample the pressure detected at the vacuum sensor, a pressure sampler 50 is connected to the vacuum sensor, which is not shown, and which operates at intervals to sample. The sampler 50 is powered by the power source 40. It can be any one or a combination of several power sources, for example, a battery, a rechargeable storage device, solar energy, or a utility power source and a transformer.
[0070] Pressure sampler 50 is connected to amplifier 52 to amplify the pressure signal. The amplifier 52 is connected to a micro-controller 54. The controller 54 is connected to a digital display, generally an LCD screen, shown as 56. The controller 54 is also connected to a potentiometer of the vacuum regulation knob 121, which does not it shows.
[0071] Controller 54 controls sampler 50, which samples the pressure at predetermined time intervals. This provides a reading to the display 56 each time a sample is taken. This significantly reduces the power consumption of the system. Therefore, the long-lasting battery-powered feeder will provide long-lasting operation without the need for a mains connection.
[0072] The sample rate can be changed with the controller 54. Therefore, when the vacuum regulating knob 121 is turned, the controller 54 will temporarily increase the sample rate of the sampler 50. In this way, the display will provide an instantaneous reading of the new negative pressure.
[0073] The microcontroller 54 generally comprises an electronic chip, incorporating the logic to control the sampler 50. The microcontroller 54 controls the time interval in which the negative pressure is monitored, sampled and read. The reason the sampling is at intervals rather than continuous is to extend the life of the feeder, such as a battery or the like. Consequently, batteries can be used to supply current continuously.
[0074] Battery life can be further extended by including a light sensor 97 associated with digital display 56 and part of the circuit that will detect when light is present near the vacuum regulator, in which case sampling circuit 48 will continue to sample intermittently. negative pressure as described above. However, whenever it was dark (for example, at night or when the unit is in a package) or whenever the room was exposed to low light or selected candlepower, the digital display would turn off. In other words, the numeric display on the digital display is turned off since it would be too dark in the room for someone to walk. Therefore, this saves the battery charge since the LCD screen, for example, would not be powered. However, the vacuum would be sampled intermittently as described above if the patient is left without aspiration since the alarm could go off if the vacuum is blocked. Once the light returns to the room, the light sensor detects this condition and turns the digital display back on. Alternatively, the display and intermittent sampling can be turned off (when the room is dark), but the light sensor remains active. When the light sensor detects light, the display is powered and the pressure sensor is sampled intermittently.
[0075] The microcontroller 54 can be programmed so that when the digital display reactivates because it is no longer dark or when the vacuum regulating knob 121 is turned to a different vacuum level, the intermittent period of time in which the vacuum is sampled is temporarily increased, that is, the sample rate is increased to provide a more accurate reflection of the vacuum during this transition period.
[0076] Furthermore, the regulator could carry a solar panel 99 to charge or recharge rechargeable batteries to further extend the battery life. Examples of batteries that can be used include AA or 3.6 volt batteries. In one embodiment, two of these stacks are used.
[0077] On the other hand, even if the vacuum is sampled intermittently, the display will show the vacuum level continuously. Therefore, the digital display will continually display numerical indicators, which are generally easier to read, more immediate, more accurate, and more reliable than a pointer dial.
[0078] According to an embodiment of the present invention, the digital vacuum regulating device may also comprise an inlet port for connection to a vacuum source and an outlet port for connection to a collection system connected to the patient, and in whereby the digital vacuum regulator device is selectively connected between the inlet port and the outlet port.
[0079] Furthermore, as yet another alternative, the invention described herein may include a controller that can allow the sensor to continuously detect pressure and generate a signal.
[0080] Additionally, according to a preferred embodiment, remote control of the device 100, 200 is provided via specific applications, or software, connected via a wireless connection, for example via a Bluetooth signal.
[0081] It is also possible to factory set a full scale value of the device 100, 200.
[0082] It should be noted that the negative pressure level monitored by the vacuum sensor is continuously displayed on the LCD screen, which is convenient for the user to control and allows the user to see the negative pressure level intuitively, which is more accurate and immediate with respect to the visualization of the mechanical vacuum gauge. In addition, if the user has to change different negative pressure measurement units displayed on the LCD screen, he only has to press the buttons or keys configured on the vacuum gauge.
[0083] Thus, advantageously, the device according to the invention allows, first of all, with respect to the vacuum regulators according to the state of the art, the switching on and off of the screen by a user, even providing an auto switch-off in case of the device is not used for a preset period. The devices of the known art, on the other hand, always remain active, consuming energy even if they are not used.
[0084] On the other hand, it is possible to adjust at will a specific unit of measure corresponding to the one used in the country, and it is not only a preconfigured one.
[0085] Additionally, it is possible to recharge the battery of the device through an external power source, so there is no battery that runs out and that, once finished, requires the shipment of the device for replacement.
[0086] Furthermore, the user can set a visual alarm at a certain depression value, also with a numerical indication of the depression value and also with a progress bar, which can provide additional and immediate information to the user on the degree of vacuum applied to the patient.
[0087] On the other hand, it is possible to activate or not the feedback of the screen to facilitate reading.
[0088] Likewise, the vacuum regulator described here is also designed with a threaded connection to be incorporated into the usual collection containers for aspirated liquids or, through an integrated ad hoc quick connection, for direct connection to the safety container tank. The use of the safety tank is particularly advisable to obtain a complete suction unit that can ensure total protection of both the vacuum regulator and the installation. The reduced size of the vacuum regulators greatly favors the installation of various devices in the terminal units of the installation.
[0089] The extreme rationality and simplicity, combined with the sophisticated technical realization, allow both operators and patients to appreciate the safety and functionality of this device.
[0090] All of the foregoing is a description of a preferred embodiment of the invention offered here by way of example only. The invention is not to be considered limited to any of the specific characteristics described, but rather encompasses all variations thereof which are included within the scope of the appended claims.

权利要求:
Claims (11)
[1]
1. A digital vacuum regulation device (100, 200), comprising:
a digital vacuum gauge (110, 210) with display;
a vacuum regulating body (120, 220) to which the digital vacuum gauge (110, 210) is connected;
a vacuum sensor for detecting a negative pressure and sending a level of the negative pressure to the digital vacuum gauge (110, 210); and
a plurality of buttons for on / off or adjustments of the digital vacuum gauge (110, 210);
in which the vacuum regulating body (120, 220) is actuated to regulate the negative pressure to the desired level as a function of the level of negative pressure displayed on the digital vacuum gauge (110, 210), in which, according to the operations of the buttons for settings, a device user can set a timer for automatic device shutdown, set a time for LCD backlight shutdown, select a specific unit of measure, set a preferred negative pressure level and zeroing the device (100, 200) at any time to compensate for the barometric pressure variation.
[2]
2. Digital vacuum regulator device (100, 200) according to claim 1, also comprising:
a vacuum regulating knob (121) to regulate the negative pressure arranged in the vacuum regulating body (120, 220).
[3]
3. Digital vacuum regulator device (100, 200) according to claims 1 or 2, also comprising:
an I / 0 button (123) to block and reactivate a gas supply immediately arranged in the vacuum regulating body (120, 220).
[4]
4. Digital vacuum regulator device (100, 200) according to claims 1 to 3, also comprising:
a security tank (130, 230) to protect the device (100, 200) connected to the vacuum regulating body (120, 220).
[5]
5. Digital vacuum regulator device (100, 200) according to claims 1 to 4, in which the digital vacuum gauge (110, 210) comprises a control unit (54), to which they are interconnected and communicated between yes through said control unit (54) a display unit (56), a power management unit, a interface management, a memory unit (58), an alarm unit and a sensor unit.
[6]
6. Digital vacuum regulator device (100, 200) according to claim 5,
wherein the display unit (56) includes the LCD screen and the sensor unit includes the vacuum sensor, and wherein the vacuum sensor sends a detected negative pressure level to the control unit (54) and the unit control (54) sends a received negative pressure level to the LCD for display, and
wherein when a negative pressure level displayed on the LCD screen is higher than a preset level, the control unit (54) controls the alarm unit to provide alarm information.
[7]
7. Digital vacuum regulator device (100, 200) according to claim 6, wherein the alarm information includes information in the form of text, in the form of lighting, audible information, or a combination of all of these.
[8]
8. Digital vacuum regulator device (100, 200) according to claims 1 to 7, in which the negative pressure level is continuously displayed on the LCD screen of the digital vacuum gauge (110, 210) and is updated every time the vacuum sensor detects negative pressure.
[9]
9. Digital vacuum regulator device (100, 200) according to claims 1 to 8, wherein a digital display of the digital vacuum gauge (110, 210) is a numerical display.
[10]
10. Digital vacuum regulator device (100, 200) according to claim 5, wherein the feeder management unit (40) includes a battery for supplying power to the device (100, 200).
[11]
11. Digital vacuum regulator device (100, 200) according to any one of claims 1 to 10, further comprising:
an inlet port for connection to a vacuum source and
an outlet port for connection to a fluid collection device from a patient,
wherein the digital vacuum regulator device (100, 200) is selectively connected between the inlet port and the outlet port.

类似技术:

---

公开号 | 公开日 | 专利标题

---

US9364590B2|2016-06-14|Digital pressure gauge

---

ES2710709T3|2019-04-26|Procedure and apparatus to control the gas flow of the cylinders

---

US9816642B2|2017-11-14|Method and apparatus for controlling gas flow from cylinders

---

US8456316B2|2013-06-04|System and method for measuring fluid pressure

---

US7553306B1|2009-06-30|Negative pressure therapy using wall suction

---

US6690280B2|2004-02-10|Apparatus and process for infusion monitoring

---

US10151405B1|2018-12-11|Valve integrated pressure regulator with shroud and digital display for gas cylinders

---

US6960190B2|2005-11-01|Vacuum regulator and method

---

ES2860350A2|2021-10-04|Digital vacuum regulation device |

---

JP2019536592A|2019-12-19|Electronic vacuum regulator device

---

KR200409394Y1|2006-02-22|Monitoring set of ringer's fluid

---

US7924163B1|2011-04-12|Cordless patient pad

---

CN110140031B|2021-08-06|Electronic flowmeter with regulator

---

RU2740573C1|2021-01-15|Electronic meter for monitoring compressed gas cylinder, and corresponding methods

---

US20210379323A1|2021-12-09|Automatic oxygen therapy device

---

JP2020153394A|2020-09-24|Alarm device, alarm method, and program

---

JP2019510944A|2019-04-18|Electronic pressure gauge for outlet flow variable pressure system

---

GB2497335A|2013-06-12|Wireless baby temperature monitor

同族专利:

---

公开号 | 公开日

---

FR3107837A1|2021-09-10|

---

ES2860350R1|2022-01-31|

---

DE102021104550A1|2021-09-09|

引用文献:

---

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

---

---

EP1894584B1|2003-06-19|2010-08-04|Medela Holding AG|Flow sensor for a chest drainage device|

---

US9119907B2|2004-09-21|2015-09-01|Zoll Medical Corporation|Digitally controlled aspirator|

---

ES2363951T3|2007-12-24|2011-08-19|Flow Meter S.P.A.|SUCTION ASSEMBLY FOR USE IN THE MEDICAL FIELD.|

---

US20130267919A1|2012-04-05|2013-10-10|Richard Brand Caso|Solenoid activated vacuum control device|

---

US10744239B2|2014-07-31|2020-08-18|Smith & Nephew, Inc.|Leak detection in negative pressure wound therapy system|

---

JP2019536592A|2016-10-19|2019-12-19|メドテック・メディカル・インコーポレイテッドＭｅｄｔｅｃ Ｍｅｄｉｃａｌ， Ｉｎｃ．|Electronic vacuum regulator device|

---

CN110645366A|2019-11-05|2020-01-03|吴丹凯|Valve device capable of intelligently regulating and controlling wall negative pressure suction|

---

法律状态:
2021-10-04| BA2A| Patent application published|Ref document number: 2860350 Country of ref document: ES Kind code of ref document: A2 Effective date: 20211004 |

---

2022-01-31| EC2A| Search report published|Ref document number: 2860350 Country of ref document: ES Kind code of ref document: R1 Effective date: 20220124 |

优先权:

---

申请号 | 申请日 | 专利标题

---

IT202000004453|2020-03-03|

---