Extracorporeal circulation device and extracorporeal circulation system

Abstract

The utility model relates to the technical field of medical instruments, and discloses an extracorporeal circulation device and an extracorporeal circulation system.The extracorporeal circulation device comprises a cannula unit, a fixing unit and a pressure measuring unit; according to the utility model, the first fixing structure of the fixing unit is connected with the cannula unit, and the second fixing structure of the fixing unit is connected with the pressure measuring unit, so that the communicating hole of the cannula unit, the first channel of the first fixing structure, the second channel of the second fixing structure and the pressure measuring unit are communicated in sequence; and the first fixing structure and the second fixing structure are detachably connected. On this basis, the pressure measuring unit can detect the pressure of the position where intubation is needed through communication of the first channel, the second channel and the communication hole, when the pressure measuring unit breaks down, the intubation unit does not need to be replaced, only the second fixing structure and the pressure measuring unit are replaced, pains caused by secondary intubation of a patient in the related technology can be avoided, and the patient experience is improved. And the technical effect of saving the operation cost can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an extracorporeal circulation device and an extracorporeal circulation system. Background Technology

[0002] Since peripheral arterial pressure can reflect central arterial pressure, and central arterial pressure can reflect whether venous drainage is unobstructed during the cardiopulmonary bypass surgery, it can help avoid poor venous drainage affecting the quality of the cardiopulmonary bypass surgery and thus improve the patient's success rate.

[0003] During surgery, patients' blood vessels are prone to spasm, causing peripheral arterial pressure to fail to accurately reflect central arterial pressure. Since doctors cannot determine whether peripheral arterial pressure reflects central arterial pressure at this time, it affects the success rate of the surgery. Therefore, existing extracorporeal circulation devices incorporate a pressure-measuring tube made of rigid material inserted into the arterial or venous cannula. One end of the tube is attached to the inside of the cannula, while the other end is integrally connected to a pressure-measuring device. This device detects the pressure at the insertion site and compares the peripheral arterial pressure with the pressure at the insertion site, allowing doctors to determine the cause of the problem based on the comparison results.

[0004] However, in actual use, when the pressure measuring tube is found to be broken, the entire cannula, pressure measuring tube, and pressure measuring device need to be replaced. This not only causes the patient the pain of a second intubation but also increases the patient's surgical costs. Utility Model Content

[0005] In view of this, the present invention provides an extracorporeal circulation device and extracorporeal circulation system to solve the problem that when the existing pressure measuring tube is prone to breakage, the pressure measuring tube will be inaccurate, and the entire cannula, pressure measuring tube and pressure measuring device need to be replaced, which not only brings the patient the pain of re-insertion, but also increases the patient's surgical costs.

[0006] In a first aspect, this utility model provides an extracorporeal circulation device, comprising:

[0007] The intubation unit has an intubation channel that communicates with the outside. One end of the intubation unit is used to be placed inside the desired intubation position, and the other end of the intubation unit has a communication hole that communicates with the intubation channel.

[0008] The fixing unit includes a first fixing structure and a second fixing structure. The first fixing structure has a first channel inside and one end of the first fixing structure is connected to the insertion unit for communication between one end of the first channel and the communicating hole. The second fixing structure has a second channel inside and one end of the second fixing structure is detachably connected to the other end of the first fixing structure for communication between one end of the second channel and the other end of the first channel.

[0009] The pressure measuring unit has a third channel, and the pressure measuring unit is connected to the other end of the second fixed structure and communicates with the other end of the second channel.

[0010] Beneficial effects: By setting up a fixing unit, the first fixing structure in the fixing unit is connected to the cannulation unit for connecting one end of the first channel to the communication hole of the cannulation unit. The second fixing structure in the fixing unit is connected to the pressure measuring unit for connecting one end of the second channel to the other end of the first channel. The pressure measuring unit can communicate with the other end of the second channel, and the first and second fixing structures are detachably connected. Based on this, the pressure measuring unit can detect the pressure at the required cannulation position through the connection of the first channel, the second channel, and the communication hole. When the pressure measuring unit malfunctions, there is no need to replace the cannulation unit; only the second fixing structure and the pressure measuring unit need to be replaced. This not only avoids the pain of secondary cannulation for the patient in related techniques but also achieves the technical effect of saving surgical costs.

[0011] In one optional embodiment, the fixing unit is a Luer connector, or both the first fixing structure and the second fixing structure are provided with threads, and the first fixing structure is detachably connected to the second fixing structure through the threads.

[0012] And / or, the first fixing structure is detachably connected to the cannulation unit;

[0013] And / or, the second fixing structure is detachably connected to the pressure measuring unit.

[0014] Beneficial effects: By defining the specific structure of the first and second fixed structures that can be detached, not only can the pressure measuring unit and the second fixed structure be replaced, but also the technical effect of improving the tightness of the connection between the cannulation unit and the pressure measuring unit can be achieved, thereby improving the technical effect of improving the connection reliability between the cannulation unit and the pressure measuring unit.

[0015] By defining the first fixing structure as detachably connected to the cannulation unit and the second fixing structure as detachably connected to the pressure measuring unit, when the first fixing structure and the second fixing structure are damaged during use, the first fixing structure and the second fixing structure can be replaced specifically without replacing the cannulation unit or the pressure measuring unit as a whole. This achieves the technical effect of improving the ease of maintenance and replacement of the first fixing structure and the second fixing structure, thereby achieving the technical effect of saving costs.

[0016] In one alternative embodiment, the first fixing structure is detachably connected to the cannulation unit via threads;

[0017] And / or, the second fixing structure is detachably connected to the pressure measuring unit via threads.

[0018] Beneficial effect: By limiting the connection between the first fixing structure and the insertion unit, as well as between the second fixing structure and the pressure measuring unit, to be detachably connected via threads without the need for additional structures, the technical effect of improving the ease of detachable connection is achieved.

[0019] In one optional implementation, the pressure measuring unit includes:

[0020] A sensing structure, wherein the sensing structure is connected to the second fixed structure;

[0021] The display structure is communicatively connected to the sensing structure and is used to display the pressure value inside the desired insertion location.

[0022] Beneficial effects: The display structure can show the pressure value detected by the sensor structure at the required cannulation position without the need for doctors to read it, thereby improving the ease with which doctors can understand the pressure value at the required cannulation position, and thus achieving the technical effect of improving the intuitiveness and convenience of doctors' understanding of central arterial pressure.

[0023] In one alternative implementation, the display structure and the sensing structure are integrated.

[0024] Beneficial effects: By integrating the display structure and the sensing structure, i.e., setting the display structure on the sensing structure, the storage and use of one structure in the display structure or the sensing structure can realize the storage and use of the other structure, which can improve the ease of use between the display structure and the sensing structure.

[0025] In one alternative implementation, the display structure is wirelessly connected to the sensing structure.

[0026] Beneficial effects: The display and sensing structures do not require wires, avoiding wire entanglement that could affect the use of the extracorporeal circulation device, thereby achieving the technical effect of improving the structural simplicity of the extracorporeal circulation device.

[0027] In one alternative implementation, the display structure is electrically connected to the sensing structure.

[0028] Beneficial effects: By electrically connecting the display structure and the sensing structure, the display structure and the sensing structure can share a single circuit, thereby improving the circuit simplicity of the extracorporeal circulation device.

[0029] In one optional embodiment, the display structure is connected in series with the sensing structure, and the extracorporeal circulation device includes:

[0030] A switch is disposed on the display structure and is electrically connected to both the display structure and the sensing structure.

[0031] Beneficial effects: The switch can simultaneously control the opening and closing of the display structure and the sensing structure, thereby improving the ease of opening and closing the display structure and the sensing structure.

[0032] In one alternative implementation, the sensing structure is a piezoelectric sensor.

[0033] Beneficial effects: By limiting the sensing structure to a piezoelectric sensor, the technical effect of improving the accuracy of pressure detection can be achieved.

[0034] Secondly, this utility model also provides an extracorporeal circulation system, comprising:

[0035] The extracorporeal circulation device described above;

[0036] The host computer is connected to the sensing structure.

[0037] Beneficial effects: Since the extracorporeal circulation system includes an extracorporeal circulation device, it has the same effect as the extracorporeal circulation device, which will not be elaborated here. Attached Figure Description

[0038] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the connection between the arterial cannulation unit, the fixation unit, and the pressure measurement unit in this embodiment;

[0040] Figure 2 This is a schematic diagram of the connection between the intravenous cannulation unit, the fixation unit, and the pressure measuring unit in this embodiment.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Intubation unit;

[0043] 2. Fixing unit; 201. First fixing structure; 202. Second fixing structure;

[0044] 3. Pressure measuring unit; 301. Sensing structure; 302. Display structure;

[0045] 4. Switch. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0047] The following is combined Figure 1 and Figure 2 The following describes embodiments of the present invention.

[0048] According to an embodiment of the present invention, in one aspect, an extracorporeal circulation device is provided, comprising:

[0049] The intubation unit 1 has an intubation channel that communicates with the outside. One end of the intubation unit 1 is used to be placed inside the required intubation position, and the other end of the intubation unit 1 has a communication hole that communicates with the intubation channel.

[0050] The fixing unit 2 includes a first fixing structure 201 and a second fixing structure 202. The first fixing structure 201 has a first channel inside and one end of the first fixing structure 201 is connected to the insertion unit 1 for communication between one end of the first channel and the connecting hole. The second fixing structure 202 has a second channel inside and one end of the second fixing structure 202 is detachably connected to the other end of the first fixing structure 201 for communication between one end of the second channel and the other end of the first channel.

[0051] Pressure measuring unit 3 has a third channel inside it. Pressure measuring unit 3 is fixedly connected to the other end of the second fixed structure 202 and is connected to the other end of the second channel.

[0052] In the extracorporeal circulation device of this embodiment, a fixing unit 2 is provided. The first fixing structure 201 in the fixing unit 2 is connected to the cannulation unit 1, allowing one end of the first channel to communicate with the communication hole of the cannulation unit 1. The second fixing structure 202 in the fixing unit 2 is connected to the pressure measuring unit 3, allowing one end of the second channel to communicate with the other end of the first channel. The pressure measuring unit 3 can communicate with the other end of the second channel, and the first fixing structure 201 and the second fixing structure 202 are detachably connected. Based on this, the pressure measuring unit 3, through the communication between the first channel, the second channel, and the communication hole, can detect the pressure at the required cannulation position. When the pressure measuring unit 3 malfunctions, there is no need to replace the cannulation unit 1; only the second fixing structure 202 and the pressure measuring unit 3 need to be replaced. This not only avoids the pain caused by secondary cannulation in related technologies but also achieves the technical effect of saving surgical costs.

[0053] Among them, combined Figure 1 As shown, in this embodiment, when the required insertion site is an artery, the insertion unit 1 is an arterial cannula. Of course, in other embodiments, combined with... Figure 2 As shown, the type of cannulation unit 1 can be adjusted according to the required cannulation location. For example, cannulation unit 1 can be used for intravenous cannulation.

[0054] In addition, combined Figure 1 As shown, in this embodiment, one end of the intubation unit 1 is the end where the intubation channel communicates with the outside world, that is... Figure 1 As shown, one end of the intubation unit 1 is the bottom end, which is used to communicate with the desired intubation location. The other end of the intubation unit 1 is the top end, which is used to communicate with the membrane oxygenator, and the communication hole is located on the side of the other end of the intubation unit 1.

[0055] Of course, in other embodiments, depending on the design of the extracorporeal circulation device, the position of one end of the cannulation unit 1, the other end of the cannulation unit 1, the position of the connecting hole, the connection position between the cannulation unit 1 and the membrane oxygenator, and the connection position between the cannulation unit 1 and the required cannulation position can all be adjusted.

[0056] Furthermore, in this embodiment, the fixing unit 2 is a Luer connector, that is, one of the first fixing unit 2 and the second fixing unit 2 is a male Luer connector, and the other is a female Luer connector. Based on this, not only can the pressure measuring unit 3 and the second fixing structure 202 be replaced, but the technical effect of improving the tightness of the connection between the cannulation unit 1 and the pressure measuring unit 3 can also be achieved, thereby improving the technical effect of improving the reliability of the connection between the cannulation unit 1 and the pressure measuring unit 3.

[0057] Of course, in other embodiments, the fixing method between the first fixing structure 201 and the second fixing structure 202 can be adjusted according to the different designs of the extracorporeal circulation device. For example, both the first fixing structure 201 and the second fixing structure 202 are provided with threads, and the first fixing structure 201 is detachably connected to the second fixing structure 202 through the threads. Compared with the threaded connection in other embodiments, the Luer connector in this embodiment is simpler to assemble and disassemble, thereby achieving the technical effect of improving the ease of assembly and disassembly of the first fixing unit 2 and the second fixing unit 2.

[0058] Furthermore, preferably, when the extracorporeal circulation device needs to exhaust air, the first fixing structure 201 and the second fixing structure 202 can be disassembled to allow the connecting hole to communicate with the external environment, thereby venting air. When pressure measurement is required, the first fixing structure 201 and the second fixing structure 202 are then connected and fixed to improve the flexibility of the extracorporeal circulation device.

[0059] Furthermore, in this embodiment, the first fixing structure 201 is detachably connected to the cannulation unit 1, and the second fixing structure 202 is detachably connected to the pressure measuring unit 3. Therefore, during use, when the first fixing structure 201 and the second fixing structure 202 are damaged, they can be replaced accordingly, thereby improving the ease of maintenance and replacement of the first fixing structure 201 and the second fixing structure 202, and ultimately achieving cost savings.

[0060] Similarly, when it is necessary to replace the pressure measuring unit 3 or the cannulation unit 1, only the pressure measuring unit 3 or the cannulation unit 1 needs to be replaced, without replacing the first fixing structure 201 and the second fixing structure 202, so as to further achieve the technical effect of saving costs.

[0061] Preferably, the first fixing structure 201, the insertion unit 1, the second fixing structure 202 and the pressure measuring unit 3 are all provided with threads, so that the first fixing structure 201 and the insertion unit 1 and the second fixing structure 202 and the pressure measuring unit 3 can be detachably connected by threads.

[0062] Of course, in other embodiments, depending on the design of the extracorporeal circulation device, the detachable connection method between the first fixing structure 201 and the cannulation unit 1, and the detachable connection method between the second fixing structure 202 and the pressure measuring unit 3, can be adjusted. For example, an additional clamp can be provided to achieve a detachable connection between the first fixing structure 201 and the cannulation unit 1, and between the second fixing structure 202 and the pressure measuring unit 3. Compared with other embodiments, the detachable connection method in this embodiment does not require additional structures, thereby achieving the technical effect of improving the simplicity of the detachable connection.

[0063] In other embodiments, depending on the design of the extracorporeal circulation device, the first fixing structure 201 and the cannulation unit 1, or the second fixing structure 202 and the pressure measuring unit 3, may be integrated.

[0064] In other embodiments, depending on the design of the extracorporeal circulation device, one or more combinations of the following can be defined: the structure of the fixing unit 2, the first fixing structure 201 being detachably connected to the cannulation unit 1, and the second fixing structure 202 being detachably connected to the pressure measuring unit 3. All of these are within the protection scope of this utility model.

[0065] In other embodiments, depending on the design of the extracorporeal circulation device, only the first fixing structure 201 may be detachably connected to the cannulation unit 1 via threads, or only the second fixing structure 202 may be detachably connected to the pressure measuring unit 3 via threads.

[0066] Furthermore, in this embodiment, the pressure measuring unit 3 includes:

[0067] Sensing structure 301 is connected to the second fixed structure 202;

[0068] Display structure 302 is communicatively connected to sensing structure 301 and is used to display the pressure value inside the required insertion location. Display structure 302 is a display screen.

[0069] In this embodiment, the display structure 302 and the sensing structure 301 are integrated. Of course, in other embodiments, the display structure 302 and the sensing structure 301 can be separate or detachably connected. Compared to other embodiments, this embodiment limits the integration of the display structure 302 and the sensing structure 301, meaning the display structure 302 is mounted on the sensing structure 301. Storing and using one structure (display structure 302 or sensing structure 301) allows for the storage and use of the other structure, thus improving the ease of use between the display structure 302 and the sensing structure 301.

[0070] Of course, in other embodiments, the display structure 302 can also be a regular pressure gauge, requiring the doctor to read the reading on the gauge to know the pressure value inside the required insertion site. Compared to other embodiments, the display structure 302 in this embodiment can display the pressure value detected by the sensing structure 301 at the required insertion site, eliminating the need for the doctor to read it. This improves the ease with which the doctor understands the pressure value at the required insertion site, thereby enhancing the intuitiveness and convenience of the doctor's understanding of central arterial pressure.

[0071] In other embodiments, the display structure 302 may not be provided. In this case, the sensing structure 301 can display the pressure value with the help of instruments in other extracorporeal circulation devices, all of which are within the protection scope of this utility model.

[0072] In addition, in this embodiment, the display structure 302 and the sensing structure 301 are wirelessly connected. Wireless communication is a mature technology and will not be described in detail here.

[0073] Of course, in other embodiments, the display structure 302 and the sensing structure 301 can be connected via wired communication. Compared to other embodiments, the display structure 302 and the sensing structure 301 in this embodiment do not require wires, avoiding wire entanglement that could affect the use of the extracorporeal circulation device, thereby achieving the technical effect of improving the structural simplicity of the extracorporeal circulation device.

[0074] Furthermore, in this embodiment, the display structure 302 and the sensing structure 301 are electrically connected, that is, the display structure 302 and the sensing structure 301 share a circuit, thereby achieving the technical effect of improving the circuit simplicity of the extracorporeal circulation device.

[0075] In this embodiment, the display structure 302 and the sensing structure 301 are connected in series, and the extracorporeal circulation device includes:

[0076] Switch 4 is mounted on display structure 302 and is electrically connected to both display structure 302 and sensing structure 301. In this configuration, switch 4 is electrically connected to sensing structure 301. Therefore, switch 4 can simultaneously control the opening and closing of display structure 302 and sensing structure 301, thereby improving the ease of opening and closing of both structures.

[0077] Alternatively, the switch 4 can be electrically connected to the sensing structure 301, which also enables the switch 4 to simultaneously turn the display structure 302 and the sensing structure 301 on and off.

[0078] Of course, in other embodiments, the display structure 302 and the sensing structure 301 may each be provided with a switch 4, that is, the display structure 302 is provided with a switch 4 and the sensing structure 301 is provided with a switch 4, which is also within the protection scope of this utility model.

[0079] In other embodiments, the circuitry of the display structure 302 and the circuitry of the sensing structure 301 are arranged separately, which is also within the protection scope of this utility model.

[0080] Furthermore, in this embodiment, the sensing structure 301 is a piezoelectric sensor, which enables the technical effect of improving the accuracy of pressure detection.

[0081] Of course, in other embodiments, the type of sensing structure 301 can be adjusted according to the different designs of the extracorporeal circulation device. For example, the sensing structure 301 can be a semi-permeable membrane pressure sensor.

[0082] According to an embodiment of the present invention, another aspect provides an extracorporeal circulation system, comprising:

[0083] The extracorporeal circulation device of this embodiment;

[0084] The host computer communicates with the sensor structure 301.

[0085] The host computer can display the pressure value measured by the sensor structure 301, and can also export the pressure value measured by the sensor structure 301 for subsequent data analysis and summary after the operation.

[0086] In this embodiment, the host computer and the sensing structure 301 can be wirelessly connected. Of course, in other embodiments, the host computer and the sensing structure 301 can be wired. Compared to other embodiments, the wireless communication connection in this embodiment eliminates the need for wires, avoiding wire entanglement that could affect the use of the extracorporeal circulation system, thereby achieving the technical effect of improving the structural simplicity of the extracorporeal circulation system.

[0087] In this embodiment, the host computer can be a computer. Of course, in other embodiments, the host computer can also be a mobile phone, and the pressure value measured by the sensing structure 301 can be displayed through the built-in software of the mobile phone, all of which are within the protection scope of this utility model.

[0088] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An extracorporeal circulation device, characterized in that, include: The intubation unit (1) has an intubation channel that communicates with the outside. One end of the intubation unit (1) is used to be placed inside the required intubation position, and the other end of the intubation unit (1) has a communication hole that communicates with the intubation channel. The fixing unit (2) includes a first fixing structure (201) and a second fixing structure (202). The first fixing structure (201) has a first channel inside. One end of the first fixing structure (201) is connected to the insertion unit (1) for communication between one end of the first channel and the communicating hole. The second fixing structure (202) has a second channel inside. One end of the second fixing structure (202) is detachably connected to the other end of the first fixing structure (201) for communication between one end of the second channel and the other end of the first channel. The pressure measuring unit (3) has a third channel inside. The pressure measuring unit (3) is connected to the other end of the second fixed structure (202) and the other end of the second channel is connected to the pressure measuring unit (3).

2. The extracorporeal circulation device according to claim 1, characterized in that, The fixing unit (2) is a Luer connector, or both the first fixing structure (201) and the second fixing structure (202) are provided with threads, and the first fixing structure (201) is detachably connected to the second fixing structure (202) through the threads; And / or, the first fixing structure (201) is detachably connected to the cannulation unit (1); And / or, the second fixing structure (202) is detachably connected to the pressure measuring unit (3).

3. The extracorporeal circulation device according to claim 2, characterized in that, The first fixing structure (201) is detachably connected to the insertion unit (1) by threads; And / or, the second fixing structure (202) is detachably connected to the pressure measuring unit (3) by means of threads.

4. The extracorporeal circulation device according to any one of claims 1-3, characterized in that, The pressure measuring unit (3) includes: A sensing structure (301) is connected to the second fixed structure (202); The display structure (302) is communicatively connected to the sensing structure (301) and is used to display the pressure value inside the desired insertion position.

5. The extracorporeal circulation device according to claim 4, characterized in that, The display structure (302) and the sensing structure (301) are integrated.

6. The extracorporeal circulation device according to claim 4, characterized in that, The display structure (302) is wirelessly connected to the sensing structure (301).

7. The extracorporeal circulation device according to claim 4, characterized in that, The display structure (302) is electrically connected to the sensing structure (301).

8. The extracorporeal circulation device according to claim 7, characterized in that, The display structure (302) is connected in series with the sensing structure (301), and the extracorporeal circulation device includes: A switch (4) is disposed on the display structure (302) or the sensing structure (301), and the switch (4) is electrically connected to both the display structure (302) and the sensing structure (301).

9. The extracorporeal circulation device according to claim 4, characterized in that, The sensing structure (301) is a piezoelectric sensor.

10. An extracorporeal circulation system, characterized in that, include: The extracorporeal circulation device according to any one of claims 1-9; The host computer is connected to the extracorporeal circulation device.

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