Liver blood flow quantitative monitoring and regulating device and control method

Abstract

The invention relates to a liver blood flow quantitative monitoring and regulating device and a control method, and relates to the technical field of medical instruments. Comprising a bundling piece, a clamping base body, a springback piece, a clamping assembly, a monitoring module and a processing display module. The clamping base body is arranged at one end of the bundling piece, and a first clamping through hole is formed in the clamping base body; the springback piece is arranged on the clamping base body; the clamping assembly is arranged at the springback end of the springback piece, a second clamping through hole is formed in the clamping assembly, the monitoring module is arranged on the bundling piece, the monitoring module is arranged close to the clamping base body, and the monitoring module is used for monitoring flow changes in liver blood vessels; the monitoring module is electrically connected with the processing display module, and when the clamping assembly is stressed to move in the direction close to or away from the springback piece, the second clamping through hole coincides with the first clamping through hole. The device is convenient to bind, can quantitatively monitor liver blood vessels, and solves the problems that an existing instrument for controlling the blood flow entering the liver is inconvenient to operate and damages the important structure of the porta hepatis.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a liver blood flow quantitative monitoring and regulation device and a control method. Background Art

[0002] Minimally invasive and safe have always been the pursuit of surgeons. Since the beginning of the new century, minimally invasive surgery represented by laparoscopy has developed rapidly. The advancement of laparoscopic surgical instruments has enabled more and more operations to be performed in a minimally invasive manner. Laparoscopic partial hepatectomy is a typical example of minimally invasive surgery. The liver is an organ with a very rich blood supply. Bleeding in the surgical field during liver resection will hinder the surgical operation and affect the safety of the operation. In order to be able to perform surgery on liver-related diseases under a clear field of vision, the liver portal is often blocked during surgery to control the blood flow into the liver and reduce bleeding in the surgical area. Unfortunately, there is currently a lack of instruments that can effectively control the blood flow into the liver during laparoscopic surgery. The existing medical devices for controlling the blood flow into the liver are inconvenient to operate and have the risk of damaging important structures of the liver portal.

[0003] Regarding the above-mentioned related technologies, there are problems that the existing devices for controlling blood flow into the liver are inconvenient to operate and may damage important structures of the liver portal. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a liver blood flow quantitative monitoring and regulation device and control method, aiming to solve the problems that the existing instruments for controlling the blood flow into the liver are inconvenient to operate and damage important structures of the liver portal.

[0005] The present application provides a device and method for quantitatively monitoring and regulating liver blood flow, and a method for controlling the same, using the following technical solutions: A device and method for quantitatively monitoring and regulating liver blood flow, and a method for controlling the same, comprising:

[0006] a binding member, the binding member being used to surround the periphery of a liver blood vessel;

[0007] a clamping base, the clamping base being arranged at one end of the binding piece, the clamping base being provided with a first clamping through hole, the first clamping through hole being used for the binding piece to pass through;

[0008] a resilient member, the resilient member being arranged on the clamping base;

[0009] a clamping assembly, the clamping assembly being arranged at the rebound end of the rebound member, the clamping assembly being provided with a second clamping through hole, the second clamping through hole being used for the binding member to pass through;

[0010] A monitoring module, the monitoring module being disposed on the binding member and close to the clamping base, and being used to monitor flow changes in the liver blood vessels;

[0011] a processing and display module, the monitoring module being electrically connected to the processing and display module;

[0012] When the clamping assembly is subjected to a force to move toward or away from the resilient member, the second clamping through hole and the first clamping through hole overlap.

[0013] Optionally, a first accommodating space is formed in the clamping base, and the first clamping through hole is communicated with the first accommodating space; the resilient member and the clamping assembly are both arranged in the first accommodating space.

[0014] Optionally, the resilient member and the binding member are arranged opposite to each other, the clamping assembly is slidably arranged in the first accommodating space, and the clamping assembly is arranged between the resilient member and the binding member.

[0015] Optionally, the clamping assembly includes a clamping member and a pressure member, the clamping member is provided on the resilient member, and the clamping member is slidably provided in the first accommodating space;

[0016] The clamping base is provided with a pressing hole, and the pressing hole is communicated with the first accommodating space;

[0017] The pressure member is arranged on the clamping member, and a portion of the pressure member extends out from the pressing hole.

[0018] Optionally, the pressure member abuts against the clamping member, a first guide slope is provided at the abutment point between the pressure member and the clamping member, and a second guide slope is provided at the contact point between the clamping member and the first guide slope;

[0019] When the second guide inclined surface is subjected to pressure from the first guide inclined surface, the clamping member moves toward the direction of the resilient member.

[0020] Optionally, the clamping base includes a head end and a clamping shell, the first accommodating space is formed in the clamping shell, the pressing hole is arranged on the clamping shell, the head end is detachably arranged on the clamping shell, the head end is arranged opposite to the bundling piece, and the rebound piece is arranged on the head end.

[0021] Optionally, a press-fit groove is provided on the clamping base, and the press-fit groove is arranged opposite to the press hole.

[0022] Optionally, the binding piece and the clamping base are detachably arranged.

[0023] Optionally, a plurality of anti-slip grooves are arranged at intervals on the binding piece.

[0024] A control method for a liver blood flow quantitative monitoring and control device, applied to any of the above-mentioned liver blood flow quantitative monitoring and control devices, the method comprising:

[0025] The binding member is placed around the liver blood vessels that need to be regulated to form a binding ring for the liver blood vessels to pass through;

[0026] Applying pressure to the clamping assembly to drive the clamping assembly to move toward or away from the resilient member until the second clamping through hole coincides with the first clamping through hole;

[0027] One end of the binding member away from the resilient member passes through the first clamping through hole and the second clamping through hole to adjust the size of the binding ring;

[0028] When the pressure on the clamping assembly is no longer applied, the resilient member rebounds to fix the size of the binding ring;

[0029] The monitoring module monitors the flow changes in the liver blood vessels in real time and uploads the monitored flow change information to the processing and display module;

[0030] The processing and display module displays the flow changes in the liver blood vessels in real time.

[0031] Compared with the prior art, the embodiments of the present invention have the following advantages:

[0032] The binding piece is wrapped around the liver blood vessel that needs to be adjusted to form a binding loop for the liver blood vessel to pass through. Then, pressure is applied to the clamping assembly to drive the clamping assembly to move towards or away from the resilient piece until the second clamping hole coincides with the first clamping hole. At this time, the end of the binding piece away from the resilient piece is controlled to pass through the first clamping hole and the second clamping hole. Then, by controlling the length of the binding piece passing through the first clamping hole and the second clamping hole, the size of the binding loop can be adjusted, and finally the liver blood vessel is compressed to adjust the flow area of ​​the liver blood vessel and achieve the regulation of the liver blood vessel flow.

[0033] When the size of the strapping ring is adjusted, no pressure is applied to the clamping assembly. At this time, under the action of the rebound force of the resilient member, the clamping assembly moves in the opposite direction. At this time, the overlapping area of ​​the first clamping through hole and the second clamping through hole is reduced, thereby locking the strapping member entering the first clamping through hole and the second clamping through hole, thereby achieving the effect of fixing the size of the strapping ring. The entire operation process is convenient and quick.

[0034] After the liver blood flow quantitative monitoring and control device has banded the liver blood vessels, the monitoring module monitors the flow rate within the liver vessels. The monitoring module can upload the real-time flow rate change information to the processing and display module. After the processing and display module processes the flow rate change signal, the flow rate changes within the liver vessels at that time can be displayed in real time on the display terminal of the processing and display module. This allows medical staff to keep abreast of the organ's vascular conditions and adjust the degree of banding of the liver blood flow quantitative monitoring and control device according to actual needs to adjust the flow rate in the liver vessels, thereby achieving the effect of quantitatively adjusting the flow rate in the liver vessels and reducing or avoiding damage to the liver portal.

[0035] Therefore, the device of the present application enables medical staff to flexibly adjust the flow of liver blood vessels according to actual needs, and is easy to operate. While achieving the effect of binding and controlling the flow of liver blood vessels, it can also quantitatively monitor the liver blood vessels, making it convenient to adjust the binding status of the liver blood vessels in a timely manner, avoiding damage to the liver portal, and solving the problem that existing instruments for controlling blood flow into the liver are inconvenient to operate and damage important structures of the liver portal. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 This is a schematic diagram of the overall structure of a device for quantitatively monitoring and regulating liver blood flow in an embodiment of the present application;

[0038] Figure 2 This is a cross-sectional view of a device for quantitatively monitoring and regulating liver blood flow in an embodiment of the present application when no external force is applied to the pressure-applying member;

[0039] Figure 3 This is a cross-sectional view of a liver blood flow quantitative monitoring and control device according to an embodiment of the present application, after an external force is applied to a pressure-applying member, where the first clamping through hole and the second clamping through hole overlap;

[0040] Figure 4 This is a schematic structural diagram of a monitoring module of a device for quantitatively monitoring and regulating liver blood flow in an embodiment of the present application;

[0041] Figure 5 This is a flow chart of a control method of a liver blood flow quantitative monitoring and regulation device in an embodiment of the present application.

[0042] Description of reference numerals:

[0043] 1. Bundling piece; 11. Anti-slip groove; 12. Connecting column; 2. Clamping base; 21. Head end; 22. Clamping shell; 221. First clamping through hole; 222. Pressing hole; 223. Press-fitting groove; 3. Rebound piece; 4. Clamping assembly; 41. Clamping piece; 411. Clamping portion; 4111. Second clamping through hole; 4112. Second guide slope; 412. Rebound mounting portion; 42. Pressure piece; 421. First guide slope; 5. Monitoring module; 51. Monitoring shell; 52. Monitoring sensor. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0045] The present application is further described in detail below with reference to the accompanying drawings.

[0046] The embodiments of the present application disclose a device and a control method for quantitatively monitoring and regulating liver blood flow.

[0047] like Figure 1 、 Figure 2 and Figure 3 As shown, a liver blood flow quantitative monitoring and regulation device includes a binding member 1, a clamping base 2, a resilient member 3, a clamping assembly 4, a monitoring module 5 and a processing and display module. The binding piece 1 is used to surround the periphery of the liver blood vessels; the clamping base 2 is arranged at one end of the binding piece 1, and the clamping base 2 is provided with a first clamping through-hole 221, and the first clamping through-hole 221 is used for the binding piece 1 to pass through exactly; the resilient piece 3 is arranged on the clamping base 2; the clamping assembly 4 is arranged at the rebound end of the resilient piece 3, and the clamping assembly 4 is provided with a second clamping through-hole 4111, and the second clamping through-hole 4111 is used for the binding piece 1 to pass through exactly; the monitoring module 5 is arranged on the binding piece 1, and the monitoring module 5 is arranged close to the clamping base 2, and the monitoring module 5 is used to monitor the flow changes in the liver blood vessels; the monitoring module 5 is electrically connected to the processing and display module; wherein, when the clamping assembly 4 is subjected to force to move towards or away from the resilient piece 3, the second clamping through-hole 4111 and the first clamping through-hole 221 coincide with each other.

[0048] The binding piece 1 is wrapped around the liver blood vessel that needs to be adjusted to form a binding loop for the liver blood vessel to pass through. Then, pressure is applied to the clamping component 4 to drive the clamping component 4 to move closer to or away from the resilient member 3 until the second clamping hole 4111 coincides with the first clamping hole 221. At this time, the end of the binding piece 1 away from the resilient member 3 is controlled to pass through the first clamping hole 221 and the second clamping hole 4111. Then, by controlling the length of the binding piece 1 passing through the first clamping hole 221 and the second clamping hole 4111, the size of the binding loop can be adjusted, and finally the liver blood vessel is compressed to adjust the flow area of ​​the liver blood vessel and achieve the regulation of the liver blood vessel flow. When the size of the strapping ring is adjusted, no pressure is applied to the clamping assembly 4. At this time, under the action of the rebound force of the resilient member 3, the clamping assembly 4 moves in the opposite direction, and the overlapping area of ​​the first clamping through hole 221 and the second clamping through hole 4111 is reduced, thereby locking the strapping member 1 entering the first clamping through hole 221 and the second clamping through hole 4111, thereby achieving the effect of fixing the size of the strapping ring. The entire operation process is convenient and quick.

[0049] After the liver blood flow quantitative monitoring and control device completes the binding of the liver blood vessels, the monitoring module 5 is used to monitor the flow in the liver blood vessels. The monitoring module 5 can upload the real-time monitored flow change information to the processing and display module.

[0050] After the flow change signal is processed by the processing and display module, the flow change within the liver blood vessels can be displayed in real time on the display terminal of the processing and display module. This allows medical staff to promptly understand the condition of the organ's blood vessels and, based on actual needs, promptly adjust the degree of binding of the liver blood flow quantitative monitoring and control device on the liver blood vessels to adjust the flow rate in the liver blood vessels, thereby achieving the effect of quantitatively adjusting the flow rate in the liver blood vessels and reducing or avoiding damage to the liver portal.

[0051] Therefore, the device of the present application enables medical staff to flexibly adjust the flow of liver blood vessels according to actual needs, and is easy to operate; and while achieving the effect of binding and controlling the flow of liver blood vessels, it can also perform quantitative monitoring of the blood flow of liver blood vessels, making it convenient to adjust the binding state of liver blood vessels in a timely manner, avoiding damage to the liver portal, and solving the problem that existing instruments for controlling blood flow into the liver are inconvenient to operate and can damage important structures of the liver portal.

[0052] like Figure 1 、 Figure 2 and Figure 3 As shown, a first accommodating space is formed in the clamping base 2, and the first clamping through hole 221 is communicated with the first accommodating space; the resilient member 3 and the clamping assembly 4 are both arranged in the first accommodating space.

[0053] Specifically, the resilient member 3 is a spring or a torsion spring, and the resilient member 3 and the clamping assembly 4 are arranged in the first accommodating space, so that the clamping base 2 can protect the resilient member 3 and the clamping assembly 4, thereby improving the service life of the resilient member 3 and the clamping assembly 4.

[0054] When the clamping assembly 4 is in a state without force, the first clamping through hole 221 and the second clamping through hole 4111 are in a non-overlapping state. The first clamping through hole 221 and the second clamping through hole 4111 can both allow the binding piece 1 to pass through. Only when the first clamping through hole 221 and the second clamping through hole 4111 overlap, the binding piece 1 can pass through the first clamping through hole 221 and the second clamping through hole 4111 smoothly.

[0055] By applying external pressure to the clamping assembly 4, the clamping assembly 4 moves in the first accommodating space toward or away from the resilient member 3. As the clamping assembly 4 moves, the second clamping through hole 4111 moves toward the first clamping through hole 221 until the second clamping through hole 4111 coincides with the first clamping through hole 221. At this time, the binding member 1 can smoothly pass through the first clamping through hole 221 and the second clamping through hole 4111, thereby adjusting the size of the binding ring.

[0056] When the size of the strapping ring is adjusted, no external force is applied to the clamping component 4. At this time, the elastic potential energy stored in the resilient component 3 is released, which will push the clamping component 4 to move in the opposite direction. The second clamping through hole 4111 and the first clamping through hole 221 no longer overlap, so that the inner wall of the first clamping through hole 221 and the inner wall of the first clamping through hole 221 will clamp and lock the strapping piece 1, fix the current position of the strapping piece 1, and thus fix the size of the strapping ring.

[0057] like Figure 1 、 Figure 2 and Figure 3 As shown, the resilient member 3 is arranged opposite to the binding member 1 , and the clamping assembly 4 is slidably arranged in the first accommodating space, and the clamping assembly 4 is arranged between the resilient member 3 and the binding member 1 .

[0058] Specifically, the first accommodating space is a sliding channel, and the resilient member 3 is arranged at one end of the sliding channel away from the binding member 1 .

[0059] Both sides of the clamping assembly 4 can abut against the inner wall of the clamping base 2 forming the sliding channel. The inner wall of the clamping base 2 can limit the clamping assembly 4 so that it can only slide along the sliding channel.

[0060] The second clamping through holes 4111 are provided on both sides of the clamping assembly 4 . When the clamping assembly 4 slides along the sliding channel, the second clamping through holes 4111 can overlap with the first clamping through holes 221 on the inner wall of the clamping base 2 .

[0061] The resilient member 3 is arranged opposite to the binding member 1 , which simplifies the structure and does not require an additional transmission structure. The clamping assembly 4 only needs to slide along the sliding channel to achieve the overlap of the first clamping through hole 221 and the second clamping through hole 4111 .

[0062] Furthermore, in this embodiment, the clamping assembly 4 is pushed to move in the direction close to the resilient member 3 to achieve the overlap of the first clamping hole 221 and the second clamping hole 4111, and the elastic potential energy stored in the compression of the resilient member 3 is released to push the clamping assembly 4 to move in the opposite direction to lock the position of the strapping member 1.

[0063] Pushing the clamping assembly 4 to move toward the resilient member 3 can reduce the length of the sliding channel compared to pushing the clamping assembly 4 to move away from the resilient member 3. There is no need to provide additional sliding channel length for pushing the clamping assembly 4 to move away from the resilient member 3, thus saving space.

[0064] like Figure 1 、 Figure 2 and Figure 3 As shown, the clamping assembly 4 includes a clamping member 41 and a pressure member 42. The clamping member 41 is arranged on the rebound member 3, and the clamping member 41 is slidably arranged in the first accommodating space; a pressing hole 222 is provided on the clamping base 2, and the pressing hole 222 is connected to the first accommodating space; the pressure member 42 is arranged on the clamping member 41, and part of the pressure member 42 extends from the pressing hole 222.

[0065] Specifically, medical personnel can apply pressure to the pressure member 42 extending from the pressing hole 222 to push the clamping member 41 to slide along the sliding channel.

[0066] The pressure member 42 abuts against the clamping member 41, and medical staff can apply downward pressure to the pressure member 42 to squeeze the clamping member 41 through the pressure member 42 to push the clamping member 41 to move closer to the rebound member 3, and finally make the first clamping through hole 221 coincide with the second clamping through hole 4111.

[0067] Alternatively, the pressure member 42 is fixed on the clamping member 41, and the pressing hole 222 is a strip-shaped hole. Medical staff pushes the pressure member 42 to move closer to the resilient member 3 to drive the clamping member 41 to move closer to the resilient member 3, and finally makes the first clamping through hole 221 coincide with the second clamping through hole 4111.

[0068] Furthermore, the clamping member 41 includes a clamping portion 411 and a rebound mounting portion 412 . The rebound mounting portion 412 is cylindrical in shape. One end of the rebound mounting portion 412 is disposed on the clamping portion 411 . The second clamping through hole 4111 is disposed on the clamping portion 411 .

[0069] The resilient mounting portion 412 can be inserted into the resilient member 3 , thereby improving the stability of the connection between the resilient member 3 and the clamping member 41 , and facilitating the resilient member 3 being compressed by the clamping member 41 and the resilient member 3 pushing the clamping member 41 .

[0070] like Figure 1 、 Figure 2 and Figure 3 As shown, the pressure member 42 abuts against the clamping member 41, and a first guide slope 421 is provided at the abutment point between the pressure member 42 and the clamping member 41, and a second guide slope 4112 is provided at the contact point between the clamping member 41 and the first guide slope 421; when the second guide slope 4112 is subjected to pressure from the first guide slope 421, the clamping member 41 moves in the direction close to the rebound member 3.

[0071] Specifically, the medical staff applies downward pressure to the pressure member 42 to squeeze the clamping member 41 through the pressure member 42 to push the clamping member 41 to move closer to the resilient member 3, and finally make the first clamping through hole 221 coincide with the second clamping through hole 4111.

[0072] The arrangement of the first guide bevel 421 and the second guide bevel 4112 allows the clamping member 41 to be subjected to a force component directed toward the resilient member 3 when downward pressure is applied to the pressure member 42 through force analysis. This force component enables the pressure member 42 to push the clamping member 41 to move closer to the resilient member 3, making operation convenient.

[0073] When the binding piece 1 is taken out from between the first clamping through hole 221 and the second clamping through hole 4111, under the action of the elastic potential energy of the rebound piece 3, the rebound piece 3 can push the clamping piece 41 to move away from the rebound piece 3, and the pressure piece 42 will be pushed out of the pressing hole 222 by the clamping piece 41, thereby realizing the reset of the pressure piece 42 and facilitating the reuse of the liver blood flow quantitative monitoring and control device.

[0074] like Figure 1 、 Figure 2 and Figure 3 As shown, the clamping base 2 includes a head end 21 and a clamping shell 22, a first accommodating space is formed in the clamping shell 22, a pressing hole 222 is arranged on the clamping shell 22, the head end 21 is detachably arranged on the clamping shell 22, the head end 21 is arranged opposite to the binding member 1, and the rebound member 3 is arranged on the head end 21.

[0075] Specifically, the head end 21 is screwed to the clamping shell 22 , and the resilient member 3 is provided at one end of the head end 21 extending into the first accommodation space.

[0076] The screw connection between the head end 21 and the clamping shell 22 facilitates disassembly and assembly between the head end 21 and the clamping shell 22, and facilitates taking out the resilient member 3 and the clamping assembly 4 from the first accommodating space at any time for maintenance or replacement.

[0077] It should be noted that in order to facilitate medical staff to grasp the timing of the overlap of the first clamping through hole 221 and the second clamping through hole 4111, pressure is applied to the pressure-applying member 42 to move the clamping member 41 in the direction close to the rebound member 3. When one end of the rebound mounting portion 412 abuts against the head end 21, the first clamping through hole 221 and the second clamping through hole 4111 overlap.

[0078] like Figure 1 、 Figure 2 and Figure 3 As shown, a press-fit groove 223 is provided on the clamping base 2 , and the press-fit groove 223 is arranged opposite to the press hole 222 .

[0079] Specifically, the arrangement of the press-fit groove 223 facilitates the use of a clamping device to clamp the clamping base 2. The press-fit groove 223 is arranged opposite to the pressing hole 222, which facilitates the clamping device to apply pressure to the pressure member 42 while clamping the clamping base 2, thereby connecting the first clamping through hole 221 with the second clamping through hole 4111. The pressure member 42 is pressed against the press-fit groove 223 to apply pressure.

[0080] like Figure 1 、 Figure 2 and Figure 3 As shown, the binding member 1 and the clamping base 2 are detachably arranged.

[0081] Specifically, a connecting post 12 is provided at one end of the binding piece 1 , a connecting hole is provided on the clamping base 2 , and the connecting post 12 is screwed to the connecting hole.

[0082] Furthermore, the shape of the binding piece 1 is an elongated strip, the connection hole is provided at the end of the clamping shell 22 away from the head end 21 , and the connection column 12 is screwed to the connection hole.

[0083] In actual usage scenarios, when medical staff are faced with different liver blood vessels that need to be adjusted, they sometimes need to adjust the length of the binding member 1 according to actual conditions.

[0084] The detachable arrangement of the binding member 1 and the clamping base 2 enables convenient replacement of the binding member 1, thereby improving the scope of application of the device for quantitative monitoring and regulation of liver blood flow.

[0085] like Figure 1 、 Figure 2 and Figure 3 As shown, a plurality of anti-slip grooves 11 are arranged at intervals on the binding piece 1.

[0086] Specifically, a number of anti-slip grooves 11 are arranged at intervals on the binding piece 1, and the inner wall of the first clamping hole 221 or the inner wall of the second clamping hole 4111 can be engaged with the anti-slip groove 11, further improving the stability of the liver blood flow quantitative monitoring and control device.

[0087] like Figure 1 、 Figure 2 and Figure 4 As shown, the monitoring module 5 includes a monitoring housing 51 and a monitoring sensor 52 .

[0088] Since the end of the binding member 1 away from the resilient member 3 has to pass through the first clamping through hole 221 and the second clamping through hole 4111, in order to reserve more adjustable length for the binding member 1 and to avoid the monitoring module 5 limiting the adjustment range of the liver blood flow quantitative monitoring and control device, the monitoring shell 51 is set on the end of the binding member 1 close to the clamping base 2.

[0089] A monitoring space is formed in the monitoring housing 51 , and the monitoring sensor 52 is disposed in the monitoring space.

[0090] The monitoring sensor 52 is used to monitor flow changes in the liver blood vessels. A monitoring hole is provided on the side of the monitoring shell 51 facing the liver blood vessels. The monitoring hole is connected to the monitoring space. The monitoring end of the monitoring sensor 52 extends from the monitoring hole, making it convenient for the monitoring sensor 52 to monitor flow changes in the liver blood vessels.

[0091] The monitoring sensor 52 is communicatively connected to the processing and display module, and the flow change information of the liver blood vessels monitored by the monitoring sensor 52 can be uploaded to the processing and display module in real time.

[0092] The monitoring sensor 52 includes one of an ultrasonic monitoring sensor, an optical monitoring sensor, and a pressure monitoring sensor.

[0093] The working principle of the ultrasound monitoring sensor is based on ultrasound and the Doppler effect, and can display the blood flow speed, direction and flow in the liver blood vessels in real time.

[0094] The working principle of the optical monitoring sensor is to monitor blood flow signals by analyzing dynamic changes in images through laser irradiation.

[0095] The pressure monitoring sensor is a piezoresistive pressure sensor that can fit the outer wall of the blood vessel to monitor the pulsating pressure waveform and indirectly infer changes in blood flow by analyzing the pressure fluctuation amplitude.

[0096] All three sensors can monitor changes in blood flow in liver blood vessels through the outer walls of liver blood vessels.

[0097] The processing display module is set outside, such as in an operating room.

[0098] The processing and display module includes a processing module and a display module. The monitoring sensor is communicatively connected to the processing module, and the display module is electrically connected to the processing module.

[0099] After the flow change information uploaded by the monitoring sensor 52 is received by the processing module, the processing module will perform signal processing on it. The processed flow change information will be uploaded to the display module, and the flow change will be displayed in real time through the display module, so that medical staff can understand the degree of blood flow blockage in a timely manner and adjust the degree of binding of the liver blood vessels by the liver blood flow quantitative monitoring and control device according to actual needs.

[0100] Furthermore, an arc is provided on one side of the monitoring shell 51 close to the liver blood vessels for covering the liver blood vessels, so as to increase the contact area between the monitoring shell 51 and the liver blood vessels, making it easier for the monitoring sensor 52 to stick to the liver blood vessels to improve monitoring accuracy.

[0101] like Figure 5 As shown, a control method of a liver blood flow quantitative monitoring and control device is applied to any of the liver blood flow quantitative monitoring and control devices described above, the method comprising:

[0102] S100 , wrapping the binding member 1 around the liver blood vessels that need to be regulated to form a binding ring for the liver blood vessels to pass through.

[0103] S200 , applying pressure to the clamping assembly 4 to drive the clamping assembly 4 to move toward or away from the resilient member 3 until the second clamping through hole 4111 coincides with the first clamping through hole 221 .

[0104] Specifically, downward pressure is applied to the pressure piece 42, and the pressure piece 42 squeezes the clamping piece 41. Due to the cooperation between the first guide bevel 421 and the second guide bevel 4112, the clamping piece 41 will be subjected to a part of the force directed to the rebound piece 3. Through this part of the force, the pressure piece 42 pushes the clamping piece 41 to move closer to the rebound piece 3. The pressure piece 42 is continuously pressed until one end of the rebound mounting portion 412 abuts against the head end 21, and the pressure piece 42 can no longer be pressed down. At this time, the first clamping through hole 221 coincides with the second clamping through hole 4111.

[0105] S300 , the end of the binding member 1 away from the resilient member 3 passes through the first clamping through hole 221 and the second clamping through hole 4111 to adjust the size of the binding loop.

[0106] Specifically, the binding piece 1 can pass through the clamping shell 22 and the clamping assembly 4 located inside the clamping shell 22 through the first clamping through hole 221 and the second clamping through hole 4111. By adjusting the length of the binding piece 1 passing through, the size of the binding ring can be adjusted, and ultimately the liver blood vessels are compressed to adjust the flow area of ​​the liver blood vessels and realize the regulation of the liver blood vessel flow.

[0107] S400: No longer applying pressure to the clamping assembly 4, the resilient member 3 rebounds to fix the size of the binding ring.

[0108] Specifically, after the size of the strapping ring is determined, no external force is applied to the pressure member 42. At this time, the elastic potential energy stored in the resilient member 3 is released, which will push the clamping member 41 to move in the opposite direction. The second clamping through hole 4111 and the first clamping through hole 221 no longer overlap, so that the inner wall of the first clamping through hole 221 and the inner wall of the first clamping through hole 221 will clamp and lock the strapping member 1, fix the current position of the strapping member 1, and thus fix the size of the strapping ring.

[0109] S500 , the monitoring module 5 monitors the flow changes in the liver blood vessels in real time, and uploads the monitored flow change information to the processing and display module.

[0110] S600: The processing and display module displays the flow changes in the liver blood vessels in real time.

[0111] In summary, a liver blood flow quantitative monitoring and control device includes a binding member 1, a clamping base 2, a resilient member 3, a clamping assembly 4, a monitoring module 5 and a processing and display module. The binding piece 1 is used to surround the periphery of the liver blood vessels; the clamping base 2 is arranged at one end of the binding piece 1, and the clamping base 2 is provided with a first clamping through-hole 221, and the first clamping through-hole 221 is used for the binding piece 1 to pass through exactly; the resilient piece 3 is arranged on the clamping base 2; the clamping assembly 4 is arranged at the rebound end of the resilient piece 3, and the clamping assembly 4 is provided with a second clamping through-hole 4111, and the second clamping through-hole 4111 is used for the binding piece 1 to pass through exactly; the monitoring module 5 is arranged on the binding piece 1, and the monitoring module 5 is arranged close to the clamping base 2, and the monitoring module 5 is used to monitor the flow changes in the liver blood vessels; the monitoring module 5 is electrically connected to the processing and display module; wherein, when the clamping assembly 4 is subjected to force to move towards or away from the resilient piece 3, the second clamping through-hole 4111 and the first clamping through-hole 221 coincide with each other.

[0112] The binding piece 1 is wrapped around the liver blood vessel that needs to be adjusted to form a binding loop for the liver blood vessel to pass through. Then, pressure is applied to the clamping component 4 to drive the clamping component 4 to move closer to or away from the resilient member 3 until the second clamping hole 4111 coincides with the first clamping hole 221. At this time, the end of the binding piece 1 away from the resilient member 3 is controlled to pass through the first clamping hole 221 and the second clamping hole 4111. Then, by controlling the length of the binding piece 1 passing through the first clamping hole 221 and the second clamping hole 4111, the size of the binding loop can be adjusted, and finally the liver blood vessel is compressed to adjust the flow area of ​​the liver blood vessel and achieve the regulation of the liver blood vessel flow. When the size of the strapping ring is adjusted, no pressure is applied to the clamping assembly 4. At this time, under the action of the rebound force of the resilient member 3, the clamping assembly 4 moves in the opposite direction, and the overlapping area of ​​the first clamping through hole 221 and the second clamping through hole 4111 is reduced, thereby locking the strapping member 1 entering the first clamping through hole 221 and the second clamping through hole 4111, thereby achieving the effect of fixing the size of the strapping ring. The entire operation process is convenient and quick.

[0113] After the liver blood flow quantitative monitoring and control device completes the binding of the liver blood vessels, the monitoring module 5 is used to monitor the flow in the liver blood vessels. The monitoring module 5 can upload the real-time monitored flow change information to the processing and display module.

[0114] After the flow change signal is processed by the processing and display module, the flow change within the liver blood vessels can be displayed in real time on the display terminal of the processing and display module. This allows medical staff to promptly understand the condition of the organ's blood vessels and, based on actual needs, promptly adjust the degree of binding of the liver blood flow quantitative monitoring and control device on the liver blood vessels to adjust the flow rate in the liver blood vessels, thereby achieving the effect of quantitatively adjusting the flow rate in the liver blood vessels and reducing or avoiding damage to the liver portal.

[0115] Therefore, the device of the present application enables medical staff to flexibly adjust the flow of liver blood vessels according to actual needs, and is easy to operate; and while achieving the effect of binding and controlling the flow of liver blood vessels, it can also perform quantitative monitoring of the blood flow of liver blood vessels, making it convenient to adjust the binding state of liver blood vessels in a timely manner, avoiding damage to the liver portal, and solving the problem that existing instruments for controlling blood flow into the liver are inconvenient to operate and can damage important structures of the liver portal.

[0116] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0117] It should be noted that the present invention uses a liver blood flow quantitative monitoring and regulation device and control method as an example to introduce the specific structure and working principle of the present invention, but the application of the present invention is not limited to a liver blood flow quantitative monitoring and regulation device and control method, and can also be applied to the production and use of other similar workpieces.

[0118] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0119] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for quantitative monitoring and regulation of liver blood flow, characterized in that: include: a binding member, the binding member being used to surround the periphery of a liver blood vessel; a clamping base, the clamping base being arranged at one end of the binding piece, the clamping base being provided with a first clamping through hole, the first clamping through hole being used for the binding piece to pass through; a resilient member, the resilient member being arranged on the clamping base; a clamping assembly, the clamping assembly being arranged at the rebound end of the rebound member, the clamping assembly being provided with a second clamping through hole, the second clamping through hole being used for the binding member to pass through; A monitoring module, the monitoring module being disposed on the binding member and close to the clamping base, and being used to monitor flow changes in the liver blood vessels; a processing and display module, the monitoring module being electrically connected to the processing and display module; When the clamping assembly is subjected to a force to move toward or away from the resilient member, the second clamping through hole and the first clamping through hole overlap.

2. The device for quantitative monitoring and control of liver blood flow according to claim 1, characterized in that: A first accommodating space is formed in the clamping base, and the first clamping through hole is communicated with the first accommodating space; the resilient member and the clamping assembly are both arranged in the first accommodating space.

3. The device for quantitative monitoring and control of liver blood flow according to claim 1, characterized in that: The resilient member and the binding member are arranged opposite to each other, the clamping assembly is slidably arranged in the first accommodating space, and the clamping assembly is arranged between the resilient member and the binding member.

4. The device for quantitative monitoring and control of liver blood flow according to claim 3, characterized in that: The clamping assembly includes a clamping member and a pressure member, wherein the clamping member is disposed on the resilient member and is slidably disposed in the first accommodating space; The clamping base is provided with a pressing hole, and the pressing hole is communicated with the first accommodating space; The pressure member is arranged on the clamping member, and a portion of the pressure member extends out from the pressing hole.

5. The device for quantitative monitoring and control of liver blood flow according to claim 4, characterized in that: The pressure member abuts against the clamping member, a first guide slope is provided at the abutment point between the pressure member and the clamping member, and a second guide slope is provided at the contact point between the clamping member and the first guide slope; When the second guide inclined surface is subjected to pressure from the first guide inclined surface, the clamping member moves toward the direction of the resilient member.

6. The device for quantitative monitoring and control of liver blood flow according to claim 5, characterized in that: The clamping base includes a head end and a clamping shell, the first accommodating space is formed in the clamping shell, the pressing hole is arranged on the clamping shell, the head end is detachably arranged on the clamping shell, the head end is arranged opposite to the bundling piece, and the rebound piece is arranged on the head end.

7. The device for quantitative monitoring and control of liver blood flow according to claim 4, characterized in that: The clamping base is provided with a press-fit groove, and the press-fit groove is arranged opposite to the press hole.

8. The device for quantitative monitoring and control of liver blood flow according to claim 1, characterized in that: The binding piece and the clamping base are detachably arranged.

9. The device for quantitative monitoring and control of liver blood flow according to claim 1, characterized in that: A plurality of anti-slip grooves are arranged at intervals on the binding piece.

10. A control method for a device for quantitatively monitoring and regulating liver blood flow, characterized in that: Applicable to the device for quantitative monitoring and control of liver blood flow according to any one of claims 1 to 9, the method comprising: The binding member is placed around the liver blood vessels that need to be regulated to form a binding ring for the liver blood vessels to pass through; Applying pressure to the clamping assembly to drive the clamping assembly to move toward or away from the resilient member until the second clamping through hole coincides with the first clamping through hole; One end of the binding member away from the resilient member passes through the first clamping through hole and the second clamping through hole to adjust the size of the binding ring; When the pressure on the clamping assembly is no longer applied, the resilient member rebounds to fix the size of the binding ring; The monitoring module monitors the flow changes in the liver blood vessels in real time and uploads the monitored flow change information to the processing and display module; The processing and display module displays the flow changes in the liver blood vessels in real time.

Images