Inflatable clamping type blood vessel blocking instrument

Abstract

The invention relates to the technical field of intraoperative blood vessel blocking instruments, in particular to an inflatable clamping type blood vessel blocking instrument which mainly comprises a first belt body, a second belt body and a third belt body, the first belt body is provided with a first joint end and a first connecting end, the first belt body is further provided with a first end face, and a plurality of first bag bodies are arranged on the first end face at intervals; the second band body is provided with a second joint end and a second connecting end, the second joint end is connected with the first joint end, and the second connecting end is detachably connected with the first connecting end, so that the first band body and the second band body can surround the blood vessel to form a closed pattern; the second belt body is further provided with a second end face, and a plurality of second bags are arranged on the second end face at intervals. The first bag body and the second bag body have a contraction state and an expansion state, and when the first bag body and the second bag body are converted from the contraction state to the expansion state, the first belt body and the second belt body deform, so that the first bag body and the second bag body expand in the direction of the blood vessel to extrude the blood vessel, and the blood vessel is blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of intraoperative blood vessel blocking instruments, and in particular to an inflatable clamping blood vessel blocking instrument. Background Art

[0002] Temporary vascular occlusion is widely used in various surgical operations, such as liver resection, kidney resection and other common operations. Vascular occlusion can reduce the amount of bleeding during organ resection. At the same time, the blockage of vascular branches can determine the margin of organ resection. Therefore, vascular occlusion is a very important technical component.

[0003] In addition, with the development of minimally invasive endoscopic technology, more and more open surgeries can be performed through laparoscopic surgery, including a series of more complex surgeries such as liver resection, nephrectomy, and lung resection, which have been successfully performed under laparoscopy. These complex laparoscopic surgeries have higher requirements for controlling bleeding volume.

[0004] The conventional method of blood vessel blocking is to directly clamp the blood vessel with metal forceps or metal clips, but this blocking method can easily damage the blood vessel wall and lead to postoperative thrombosis. For this reason, in clinical practice, there is also a method of using flexible airbags to ring the blood vessels to block the blood vessels, such as Chinese patent: Application No. 202311211629.6 A blood vessel blocking device and method discloses "an inflatable balloon, a pipeline unit and at least one blocking unit connected in sequence, the blocking unit includes a first airbag connected in sequence and a second airbag connected to the first airbag, the end of the first airbag is provided with a lock, the end of the second airbag is provided with a lock belt, and the lock is engaged with the lock belt." When in use, the blocking unit is wrapped around the periphery of the blood vessel, the lock belt is inserted into the lock and engaged with the lock, the inflated balloon is pressed, and the gas enters the blocking unit through the pipeline unit. The first and second airbags swell after inflation to block the blood vessel.

[0005] The technical solution disclosed in this patent is to squeeze and block the blood vessel by using the first airbag and the second airbag. However, under this setting, due to the expansion of the airbag, its surface is curved, while the surface of the blood vessel is relatively smooth. Therefore, the blood vessel will slide between the two airbags to the end position, and the first airbag and the second airbag need to be expanded to a large enough size to contact the upper and lower surfaces of the blood vessel and provide uniform pressure before the blood vessel can be completely closed. As a result, the area occupied by the instrument in the surgical area is large, and the pressure on the surrounding tissues is greater. Summary of the Invention

[0006] In response to the above problems, the present application discloses an inflatable clamping vascular blocking device, which, when used, can restrict the blood vessels to be blocked so that the blood vessels to be blocked will not be displaced. It can avoid the problem of incomplete closure of the blocked blood vessels, and while blocking the blood vessels, it can also reduce the occupation of the surgical area space and the pressure on the tissues around the blood vessels.

[0007] In order to achieve the above objectives, this application adopts the following technical solutions, which include:

[0008] A first belt body, the first belt body having a first engaging end and a first connecting end, wherein the first belt body further has a first end surface, and a plurality of first capsules are arranged at intervals on the first end surface;

[0009] a second belt body, the second belt body having a second engaging end and a second connecting end, the second engaging end being connected to the first engaging end, and the second connecting end being detachably connected to the first connecting end, so that the first belt body and the second belt body can form a closed pattern around the blood vessel; wherein the second belt body further has a second end surface opposite to the first end surface, and a plurality of second capsules are arranged at intervals on the second end surface;

[0010] Among them, the first balloon and the second balloon have a contracted state and an expanded state. After the first belt body and the second belt body form a closed pattern around the blood vessel, when the first balloon and the second balloon are converted from the contracted state to the expanded state, the first belt body and the second belt body are deformed, so that each of the first balloon and the second balloon expands toward the blood vessel to squeeze the blood vessel, so that the blood vessel is blocked.

[0011] In an illustrative embodiment of an inflatable clamping blood vessel occlusion device, in the length extension direction of the belt body, the first capsules and the second capsules are arranged in a linear array.

[0012] In an exemplary embodiment of an inflatable clamping type blood vessel occlusion device,

[0013] The first belt body also has a first mounting end surface opposite to the first end surface;

[0014] The second belt body further has a second mounting end surface opposite to the second end surface;

[0015] The inflatable clamping type blood vessel blocking device further comprises:

[0016] A main branch pipeline, the main branch pipeline having an input end and an output end;

[0017] a first auxiliary branch pipeline, the first auxiliary branch pipeline being arranged on the first mounting end surface, wherein each of the first capsules is connected to the first auxiliary branch pipeline;

[0018] a second auxiliary branch pipeline, the second auxiliary branch pipeline being arranged on the second mounting end surface, wherein each of the second capsules is connected to the second auxiliary branch pipeline;

[0019] Wherein, the first auxiliary branch pipeline and the second auxiliary branch pipeline are both connected to the output end of the main branch pipeline.

[0020] In an illustrative embodiment of an inflatable clamping blood vessel occlusion device, a first one-way valve is further provided in the input end of the main branch line.

[0021] In an exemplary embodiment of an inflatable clamping blood vessel occlusion device, the inflatable clamping blood vessel occlusion device further includes: an elastic balloon having an output interface and an input interface, the output interface being connected to the input end of the main branch pipeline;

[0022] Wherein, a second one-way valve is provided in the input interface. The elastic balloon has an expanded state and a compressed state. When the elastic balloon switches from the expanded state to the compressed state, positive pressure is generated inside the elastic balloon, causing the first one-way valve to flow, and the elastic balloon fills air into each of the first and second balloons, causing the first and second balloons to switch from the contracted state to the expanded state.

[0023] When converting from the compressed state to the expanded state, the first one-way valve is closed, and under the action of elasticity, negative pressure is generated in the elastic balloon, causing the second one-way valve to flow, and air enters the elastic balloon from the input interface, causing the elastic balloon to convert from the compressed state to the expanded state.

[0024] In an exemplary embodiment of an inflatable clamping blood vessel occlusion device, the first connecting end is provided with an elastic locking member, wherein a locking hole is formed through the elastic locking member;

[0025] The second connecting end is provided with a flexible locking belt that can be inserted into the locking hole, wherein the flexible locking belt is provided with a plurality of locking blocks arranged at intervals. When the flexible locking belt is inserted into the locking hole, the locking block abuts against the locking hole, causing the locking hole to expand elastically. After one of the locking blocks passes through the locking hole, the locking hole is restored under the action of elasticity, so that the first belt body and the second belt body form the closed figure.

[0026] In an illustrative embodiment of an inflatable clamping blood vessel occlusion device, a plurality of locking blocks are arranged in an array in the length extension direction of the flexible locking band.

[0027] In a schematic embodiment of an inflatable clamping blood vessel occlusion device, the locking hole is a rectangular hole, the cross-section of the locking block is trapezoidal in the direction perpendicular to the length extension of the flexible locking band, and the length and width of the locking block are greater than the length and width of the rectangular hole.

[0028] In an illustrative embodiment of an inflatable clamping blood vessel occlusion device, the locking hole is a circular hole, the cross-section of the locking block is circular in the direction perpendicular to the length extension of the flexible locking band, and the diameter of the locking block is larger than the diameter of the circular hole.

[0029] The following will describe preferred embodiments in a clear and understandable manner with reference to the accompanying drawings, further illustrating the above-mentioned characteristics, technical features, advantages and implementation methods of an inflatable clamping blood vessel occlusion device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0031] Figure 1 A schematic structural diagram for illustrating an exemplary embodiment of an inflatable clamping blood vessel occlusion device.

[0032] Figure 2 A structural diagram for illustrating an exemplary embodiment of the first belt body and the second belt body.

[0033] Figure 3 A schematic structural diagram illustrating that the first belt body and the second belt body form a closed pattern around a blood vessel.

[0034] Figure 4 A schematic diagram illustrating the structure of the first and second balloons blocking a blood vessel.

[0035] Figure 5 A schematic diagram illustrating the structure of the main branch pipeline and the first auxiliary branch pipeline.

[0036] Figure 6 Used to illustrate the cross-sectional schematic diagram of the first auxiliary branch pipeline and the second auxiliary branch pipeline.

[0037] Figure 7 A schematic diagram illustrating the internal structure of the main branch pipeline input end.

[0038] Figure 8 A schematic diagram illustrating the structure of an elastic balloon.

[0039] Figure 9Schematic diagram used to illustrate the connection between the elastic balloon and the main branch pipeline.

[0040] Figure 10 A structural diagram for illustrating an exemplary embodiment of an elastic locking member and a flexible locking belt.

[0041] Figure 11 A schematic diagram illustrating the structure after the elastic locking member and the flexible locking belt are connected.

[0042] Description of labels

[0043] 1. First belt; 11. First joint end; 12. First connecting end; 13. First bladder; 14. First auxiliary branch; 15. Elastic locking member; 151. Locking hole; 2. Second belt; 21. Second joint end; 22. Second connecting end; 23. Second bladder; 24. Second auxiliary branch; 25. Flexible locking belt; 251. Locking block; 3. Main branch; 31. Input end; 311. First one-way valve; 32. Output end; 4. Elastic bladder; 41. Elastic balloon; 42. Output port; 421. Second one-way valve; 43. Input port; 5. Blood vessel DETAILED DESCRIPTION

[0044] In order to have a clearer understanding of the technical features, purposes and effects of the present application, the specific implementation methods of the present application are now described with reference to the accompanying drawings. The same reference numerals in the drawings represent components with the same structure or similar structures but the same functions.

[0045] In this document, “illustrative” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “illustrative” should not be interpreted as a more preferred or more advantageous technical solution.

[0046] To simplify the drawings, only the parts related to the present application are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled.

[0047] like Figure 1As shown in FIG3 , the inflatable clamping blood vessel blocking device includes: a first belt body 1 and a second belt body 2. Both the first belt body 1 and the second belt body 2 are flexible belt bodies. The first belt body 1 has a first joint end 11 and a first connecting end 12, and the second belt body 2 has a second joint end 21 and a second connecting end 22. The second joint end 21 is connected to the first joint end 11, specifically as an integral connection, and the second connecting end 22 is detachably connected to the first connecting end 12, so that the first belt body 1 and the second belt body 2 can form a closed pattern around the blood vessel. When in use, one of the first belt body 1 and the second belt body 2 is located above the blood vessel to be blocked, and the other is located below the blood vessel to be blocked, and then the first connecting end 12 of the first belt body 1 is connected to the second connecting end 22 of the second belt body 2. At this time, a closed pattern is formed between the first belt body 1 and the second belt body 2 around the blood vessel.

[0048] refer to Figure 2 、 3 The first end face of the first belt body 1 facing the second belt body 2 is defined as the first end face, and the second end face of the second belt body 2 corresponding to the first end face is defined as the second end face, wherein the first end face is provided with a plurality of first capsules 13 arranged at intervals, and the second end face is provided with a plurality of first capsules 13 arranged at intervals, and each first capsule 13 and second capsule 23 has a contracted state and an expanded state, and at the same time refers to Figure 2 、 3 4. After the first belt body 1 and the second belt body 2 form a closed pattern around the blood vessel, when each of the first and second bladders 13 and 23 switches from a contracted state to an expanded state, due to the expansion of each of the first and second bladders 13 and 23 and the presence of the blood vessel, the first bladder 13 on the first end surface near the first joint end 11 and the second bladder 23 on the second end surface near the second joint end 21, as well as the first bladder 13 on the first end surface near the first connection end 12 and the second bladder 23 on the second end surface near the second connection end 22 are first squeezed together, so that The distance between the first belt body 1 and the second belt body 2 increases. At the same time, due to the connection between the first connecting end 12 and the second connecting end 22, the first belt body 1 and the second belt body 2 gradually form an arc. At this time, the first capsules 13 and the second capsules 23 interact with each other and converge toward the center point of the closed figure surrounded by the first belt body 1 and the second belt body 2, so as to confine the blood vessels between the first capsules 13 and the second capsules 23, prevent the blood vessels from sliding to the first connecting end 12 or the first joint end 11, and thus avoid the problem of incomplete closure of the blood vessels.

[0049] At the same time, as each first capsule 13 and second capsule 23 continues to expand, they gradually exert force on the outer wall of the blood vessel to form a flexible clamping state on the blood vessel, causing the blood vessel to gradually close. When each first capsule 13 abuts against the outer surface of the corresponding second capsule 23, the blood vessel is completely blocked.

[0050] In another aspect, the first capsules 13 and the second capsules 23 are arranged in a staggered manner, so that the first capsule 13 on the first end face close to the first joint end 11 and the second capsule 23 on the second end face close to the second joint end 21, and the first capsule 13 on the first end face close to the first connecting end 12 and the second capsule 23 on the second end face close to the second connecting end 22, require smaller inflation volume, while the first capsule 13 close to the middle position of the first belt 1 and the second capsule 23 close to the middle position of the second belt 2 require larger inflation volume, thereby reducing the invalid inflation space (i.e. the inflation part not directly acting on the blood vessel), so that the volume of the entire device is correspondingly reduced when each first capsule 13 and second capsule 23 is in an inflated state, thereby reducing the occupation of the operation area and the compression of the tissue around the blood vessel.

[0051] As can be understood by those skilled in the art, the first belt 1 and the second belt 2 are flexible belts, so that the device can be applied to open surgery to block the blood vessel, and can also be applied to laparoscopic surgery to block the blood vessel. Specifically, in laparoscopic surgery, the first belt 1 and the second belt 2 are inserted into the patient's body through a laparoscopic trocar, the blood vessel to be blocked is placed between the first belt 1 and the second belt 2 using surgical forceps, and the first connecting end 12 and the second connecting end 22 are connected, so that the blood vessel is blocked by converting each first capsule 13 and second capsule 23 from a contracted state to an inflated state.

[0052] Alternatively, the first connecting end 12 and the second connecting end 22 of the belt are provided with a bending portion, wherein the bending portion is formed by stamping after the belt is bent, and the belt is divided into an upper layer and a lower layer in the thickness direction of the belt. The first end face of the upper layer faces the lower layer, the second end face of the lower layer faces the upper layer, the first end face is arranged with a plurality of first capsules 13 in a staggered manner, and the second end face is arranged with a plurality of second capsules 23 in a staggered manner.

[0053] Reference Figure 2 More specifically, the plurality of first capsules 13 are arranged in a straight line array in the length extension direction of the first belt 1, and similarly, the plurality of second capsules 23 are arranged in a straight line array in the length extension direction of the second belt 2, and the number of first capsules 13 is the same as the number of second capsules 23.

[0054] As can be understood by those skilled in the art, the first capsule 13 and the second capsule 23 are one of a gas bag or a water bag. When the first capsule 13 and the second capsule 23 are gas bags, air or inert gas can be filled into the first capsule 13 and the second capsule 23, so that each first capsule 13 and second capsule 23 is converted from a contracted state to an inflated state.

[0055] When the first and second bladders 13 and 23 are water bladders, physiological saline can be filled into the first and second bladders 13 and 23 to convert the first and second bladders 13 and 23 from a contracted state to an expanded state.

[0056] In order to fill the first capsule 13 and the second capsule 23 with gas or liquid, refer to Figure 5 、 6 The inflatable clamping blood vessel occlusion device further includes: a main branch pipeline 3, a first auxiliary branch pipeline 14 and a second auxiliary branch pipeline 24, wherein the main branch pipeline 3 has an input end 31 and an output end 32.

[0057] refer to Figure 6 The first belt body 1 also has a first mounting end face opposite to the first end face, and the first auxiliary branch pipeline 14 is arranged on the first mounting end face, wherein each first capsule 13 is connected to the first auxiliary branch pipeline 14, and each first capsule 13 and the first auxiliary branch pipeline 14 are in a parallel connected state.

[0058] The second belt body 2 also has a second mounting end face opposite to the second end face, and the second auxiliary branch pipeline 24 is arranged on the second mounting end face, wherein each second capsule 23 is connected to the second auxiliary branch pipeline 24, and each second capsule 23 and the second auxiliary branch pipeline 24 are in a parallel connection state.

[0059] The first auxiliary branch 14 and the second auxiliary branch 24 are both connected to the output end 32 of the main branch 3. In this arrangement, gas or liquid is injected into each of the sacs simultaneously through the input end 31 of the main branch 3 after passing through the first auxiliary branch and the second auxiliary branch. At the same time, by setting each of the first sacs 13 and the first auxiliary branch 14 in a parallel connection state and each of the second sacs 23 and the second auxiliary branch 24 in a parallel connection state, the pressure of each of the first sacs 13 and the second sacs 23 is balanced, and each of the first sacs 13 and the second sacs 23 is evenly fitted to the surface of the blood vessel, thereby further reducing the ineffective expansion space. In the expanded state, the overall volume of the device is smaller, thereby better protecting the tissues around the blood vessels. As an explanation, when the device is applied to laparoscopic surgery, the input end 31 of the main branch 3 is located outside the patient's body and is connected to an external liquid filling or gas filling device.

[0060] refer to Figure 7A first one-way valve 311 is also provided in the input end 31 of the main branch pipeline 3, wherein the first one-way valve 311 allows liquid or gas to flow from the input end 31 to the output end 32. When in use, an external syringe, a syringe containing physiological saline, an inflatable balloon, an air pump, or a liquid pump is connected to the input end 31. When liquid or gas is injected into each first capsule 13 and the second capsule 23 through the main branch pipeline 3, the first one-way valve 311 of the input end 31 is opened to realize the filling of gas or liquid into each first capsule 13 and the second capsule 23. When the filling of liquid or gas into each first capsule 13 and the second capsule 23 stops, the first one-way valve 311 of the input end 31 is closed, so that each first capsule 13 and the second capsule 23 always remain in an expanded state.

[0061] As those skilled in the art will appreciate, the first belt body 1 and the second belt body 2 are disposable. After the operation, the first belt body 1 and the second belt body 2 can be directly cut to stop blocking the blood vessels.

[0062] refer to Figure 8 、 9 In this embodiment, the first balloon 13 and the second balloon 23 are both airbags, and the inflatable clamping blood vessel blocking device further includes: an elastic balloon 41, the elastic balloon 41 having an output interface 42 and an input interface 43, the output interface 42 being plugged into the input end 31 of the main branch pipeline 3, wherein a second one-way valve 421 is provided in the input interface 43, and the elastic balloon 41 is in an expanded state under normal conditions. When force is applied to the elastic balloon 41, the elastic balloon 41 is deformed, and positive pressure is generated inside the elastic balloon 41 to push open the first one-way valve 311 at the input end 31, so that the air in the elastic balloon 41 is input into the main branch pipeline through the output interface 42. The air is sucked into the path 3 and then into each first balloon 13 and the second balloon 23, so that each first balloon 13 and the second balloon 23 are converted from a contracted state to an expanded state. At this time, the elastic balloon 41 is in a compressed state. After the force on the elastic balloon 41 stops, the elastic balloon 41 generates negative pressure inside under the action of elasticity. The second one-way valve 421 opens under the action of negative pressure, and air is sucked into the elastic balloon 41 through the input interface 43, so that the elastic balloon 41 returns to the expanded state. By repeatedly applying force to the elastic balloon 41, the first balloon 13 and the second balloon 23 are continuously expanded until the blood vessel is blocked.

[0063] Specifically, the elastic balloon 41 is made of one of rubber, silicone, and latex, preferably rubber. The elastic balloon 41 made of this material has good elasticity. After force is applied to it, it can quickly recover to the expanded state by relying on its own elasticity, thereby increasing the speed of filling air into each first balloon 13 and second balloon 23.

[0064] In addition, the output interface 42 and the main branch pipeline 3 are plug-in settings, which allows the elastic balloon 41 to be reused. Specifically, when it is necessary to convert each first balloon 13 and the second balloon 23 from a contracted state to an expanded state, the output interface 42 of the elastic balloon 41 is plugged into the main branch pipeline 3 to inflate each first balloon 13 and the second balloon 23. After blocking the blood vessel, the elastic balloon 41 is separated from the main branch pipeline 3 and disinfected for next use.

[0065] refer to Figure 10 In order to enable the first belt body 1 and the second belt body 2 to form a closed pattern around the blood vessel, in this embodiment, the first connecting end 12 is provided with an elastic locking member 15, wherein the elastic locking member 15 is penetrated by a locking hole 151; the second connecting end 22 is provided with a flexible locking belt 25 that can be inserted into the locking hole 151, wherein the flexible locking belt 25 is provided with three locking blocks 251 arranged at intervals. When the flexible locking belt 25 is inserted into the locking hole 151, the locking block 251 abuts against the locking hole 151, causing the locking hole 151 to elastically expand. After one locking block 251 passes through the locking hole 151, the locking hole 151 returns to its original shape under the action of elasticity, so that the first belt body 1 and the second belt body 2 form a closed pattern.

[0066] refer to Figure 10 、 11 , in the direction perpendicular to the length extension of the flexible locking strip 25, the cross-section of the locking block 251 is a trapezoid, and the locking hole 151 is a rectangular hole, wherein the width and length of the locking block 251 are greater than the width and length of the locking hole 151. When the locking block 251 passes through the locking hole 151, the bottom end surface of the locking block 251 is in contact with the end surface of the elastic locking member 15, so that the locking block 251 cannot pass through the locking hole 151 in the reverse direction, thereby making the first connecting end 12 and the second connecting end 22 always remain connected, thereby realizing that the first belt body 1 and the second belt body 2 form a closed pattern around the blood vessel; as can be understood by those skilled in the art, the number of locking blocks 251 is not limited to three, and the number of locking blocks 251 can be increased or decreased accordingly according to actual application requirements.

[0067] More preferably, the locking block 251 is not provided at the end of the flexible locking belt 25 away from the second connecting end 22 , so that the flexible locking belt 25 can be more easily inserted into the locking hole 151 during surgery.

[0068] Specifically, in the length extension direction of the flexible locking belt 25, several locking blocks 251 are arranged in a linear array. Under this arrangement, the more the number of locking holes 151 passing through, the smaller the area of ​​the closed figure formed by the first belt body 1 and the second belt body 2, so that the first belt body 1 and the second belt body 2 can be more widely used in different positions and blood vessels of different diameters.

[0069] As those skilled in the art can understand, the cross-section of the locking block 251 can also be circular. Accordingly, the locking hole 151 is a circular hole, and the diameter of the locking block 251 is larger than the diameter of the locking hole 151. In this way, when the locking block 251 passes through the locking hole 151, the locking hole 151 is elastically expanded until one locking block 251 passes completely.

[0070] It should be understood that although this specification is described according to various implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0071] The series of detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present application. They are not intended to limit the scope of protection of the present application. Any equivalent implementation plans or changes that do not depart from the technical spirit of the present application, such as the combination, division or repetition of features, should be included in the scope of protection of the present application.

Claims

1. An inflatable clamping blood vessel blocking device, characterized in that: These include, A first belt body, the first belt body having a first engaging end and a first connecting end, wherein the first belt body further has a first end surface, and a plurality of first capsules are arranged at intervals on the first end surface; a second belt body, the second belt body having a second engaging end and a second connecting end, the second engaging end being connected to the first engaging end, and the second connecting end being detachably connected to the first connecting end, so that the first belt body and the second belt body can form a closed pattern around the blood vessel; wherein the second belt body further has a second end surface opposite to the first end surface, and a plurality of second capsules are arranged at intervals on the second end surface; Among them, the first balloon and the second balloon have a contracted state and an expanded state. After the first belt body and the second belt body form a closed pattern around the blood vessel, when the first balloon and the second balloon are converted from the contracted state to the expanded state, the first belt body and the second belt body are deformed, so that each of the first balloon and the second balloon expands toward the blood vessel to squeeze the blood vessel, so that the blood vessel is blocked.

2. The inflatable clamping blood vessel blocking device according to claim 1, characterized in that: In the longitudinal extension direction of the belt body, the first capsules and the second capsules are arranged in a linear array.

3. The inflatable clamping blood vessel blocking device according to claim 1, characterized in that: The first belt body also has a first mounting end surface opposite to the first end surface; The second belt body further has a second mounting end surface opposite to the second end surface; The inflatable clamping type blood vessel blocking device further comprises: A main branch pipeline, the main branch pipeline having an input end and an output end; a first auxiliary branch pipeline, the first auxiliary branch pipeline being arranged on the first mounting end surface, wherein each of the first capsules is connected to the first auxiliary branch pipeline; a second auxiliary branch pipeline, the second auxiliary branch pipeline being arranged on the second mounting end surface, wherein each of the second capsules is connected to the second auxiliary branch pipeline; Wherein, the first auxiliary branch pipeline and the second auxiliary branch pipeline are both connected to the output end of the main branch pipeline.

4. The inflatable clamping blood vessel blocking device according to claim 3, characterized in that: A first one-way valve is also provided in the input end of the main branch pipeline.

5. The inflatable clamping blood vessel blocking device according to claim 4, characterized in that: The inflatable clamping blood vessel blocking device further includes: an elastic balloon having an output interface and an input interface, wherein the output interface is connected to the input end of the main branch pipeline; Wherein, a second one-way valve is provided in the input interface. The elastic balloon has an expanded state and a compressed state. When the elastic balloon switches from the expanded state to the compressed state, positive pressure is generated inside the elastic balloon, causing the first one-way valve to flow, and the elastic balloon fills air into each of the first and second balloons, causing the first and second balloons to switch from the contracted state to the expanded state. When converting from the compressed state to the expanded state, the first one-way valve is closed, and under the action of elasticity, negative pressure is generated in the elastic balloon, causing the second one-way valve to flow, and air enters the elastic balloon from the input interface, causing the elastic balloon to convert from the compressed state to the expanded state.

6. The inflatable clamping blood vessel occlusion device according to claim 1, characterized in that: The first connecting end is provided with an elastic locking member, wherein the elastic locking member is penetrated by a locking hole; The second connecting end is provided with a flexible locking belt that can be inserted into the locking hole, wherein the flexible locking belt is provided with a plurality of locking blocks arranged at intervals. When the flexible locking belt is inserted into the locking hole, the locking block abuts against the locking hole, causing the locking hole to expand elastically. After one of the locking blocks passes through the locking hole, the locking hole is restored under the action of elasticity, so that the first belt body and the second belt body form the closed figure.

7. The inflatable clamping blood vessel occlusion device according to claim 6, characterized in that: In the length extension direction of the flexible locking belt, a plurality of locking blocks are arranged in an array.

8. The inflatable clamping blood vessel occlusion device according to claim 6, characterized in that: The locking hole is a rectangular hole, and the cross section of the locking block is trapezoidal in a direction perpendicular to the length extension of the flexible locking belt.

9. The inflatable clamping blood vessel occlusion device according to claim 6, characterized in that: The locking hole is a circular hole. In a direction perpendicular to the length extension of the flexible locking strip, the cross section of the locking block is circular, and the diameter of the locking block is larger than the diameter of the circular hole.

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