Tissue clamp for blood vessel

Abstract

The invention provides a tissue clamp for blood vessels, comprising: a clamping assembly, the clamping assembly comprises a clamping piece, the clamping piece is provided with a through space in a surrounding manner, and the clamping piece is used for clamping the blood vessels passing through the through space; the interior of the clamping piece is a hollow cavity, and the clamping piece can deform along with the pressure intensity of the hollow cavity; a through cavity is formed in the pressure maintaining device, one end of the through cavity is communicated with the hollow cavity, and the other end of the through cavity can be closed; the pressurizing device comprises a pressurizing channel, and the pressurizing device is detachably connected with the pressure maintaining device; when the pressurizing device is connected with the pressure maintaining device, the other end of the through cavity is opened, and the through cavity is communicated with the pressurizing channel; and when the pressurizing device and the pressure maintaining device are disconnected, the other end of the through cavity is closed. The problem that the clamping force of the tissue clamp for the blood vessel cannot be adjusted is solved, and meanwhile the situation that the tissue clamp for the blood vessel shields the operation view in the clamping process is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a tissue clip for blood vessels. Background Art

[0002] Vascular tissue clips are commonly used instruments during surgery. They are used to clamp blood vessels, block blood flow, and facilitate observation of the vessel stump and anastomosis. The ideal clamping force should be able to block blood flow without falling off and without damaging the vascular endothelium. In routine use, the clamping force exceeds 30g / mm 2 It can cause damage to the endothelium of small blood vessels.

[0003] However, in the existing technology, vascular tissue clamps are clamped by providing elastic force through a torsion spring structure. The magnitude of the elastic force is determined by the elastic coefficient and structure of the torsion spring structure, which cannot be changed during use. In addition, the torsion spring structure is large in size, which will obstruct the field of view during surgery and make it difficult to perform minimally invasive surgery.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the application and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present disclosure is to provide a vascular tissue clamp, which solves the problem that the vascular tissue clamp cannot adjust the clamping force, while avoiding the vascular tissue clamp blocking the surgical field of view during the clamping process, and can be used in minimally invasive surgery.

[0006] To achieve the above objectives, the present application provides a vascular tissue clip, comprising:

[0007] A clamping assembly, the clamping assembly comprising a clamping member, the clamping member surrounding a through space, the clamping member being used to clamp a blood vessel passing through the through space;

[0008] The interior of the clamping member is a hollow cavity, and the clamping member can be deformed according to the pressure of the hollow cavity;

[0009] A pressure-maintaining device, wherein a through cavity is provided inside the pressure-maintaining device, one end of the through cavity is connected to the hollow cavity, and the other end of the through cavity is sealable;

[0010] A charging device, the charging device comprising a charging channel, the charging device being detachably connected to the pressure-maintaining device;

[0011] When the pressure-charging device and the pressure-maintaining device are connected, the other end of the through cavity is opened, and the through cavity is communicated with the pressure-charging channel;

[0012] When the pressure charging device and the pressure maintaining device are disconnected, the other end of the through cavity is closed.

[0013] As a further improvement of the embodiment of the present application, the clamping assembly includes:

[0014] A bracket at least partially surrounds a side of the clamping member away from the through space.

[0015] As a further improvement of the embodiment of the present application, the clamping member includes:

[0016] a first capsule and a second capsule, wherein the first capsule and the second capsule are arranged opposite to each other, and the through space is located between the opposite surfaces of the first capsule and the second capsule;

[0017] A connecting capsule is connected to the first capsule and the second capsule respectively, and the interior of the first capsule, the interior of the connecting capsule and the interior of the second capsule constitute the hollow cavity.

[0018] As a further improvement of the embodiment of the present application, the communicating capsule includes:

[0019] a first branch pipe and a second branch pipe, wherein the first branch pipe is connected to the first sac, and the second branch pipe is connected to the second sac;

[0020] A third branch pipe is connected to the pressure charging channel, and the third branch pipe passes through the bracket and extends to a side of the bracket away from the clamping member.

[0021] As a further improvement to the embodiment of the present application, the first capsule includes a first plane, the second capsule includes a second plane, and the first plane and the second plane are arranged opposite to each other in a first direction.

[0022] As a further improvement of the embodiment of the present application, the pressure maintaining device includes:

[0023] a valve core, the valve core being located at one end of the pressure maintaining device close to the pressure charging device;

[0024] When the charging device is connected to the pressure maintaining device, the charging device presses the valve core, and the valve core enters an open state;

[0025] When the charging device is disconnected from the pressure maintaining device, the valve core returns to the closed state.

[0026] As a further improvement to the embodiment of the present application, the charging device includes:

[0027] A resisting portion, the resisting portion is located in the charging channel, the resisting portion is distributed on a radial plane of the charging channel, and a portion thereof is a blocking surface and another portion thereof is a through opening;

[0028] When the charging device and the pressure maintaining device are connected, the blocking surface presses the valve core, and the charging channel and the through cavity are communicated.

[0029] As a further improvement to the embodiment of the present application, the charging device includes:

[0030] The conveying member and the pump body, the interior of the conveying member is penetrated by a first tubular cavity, one end of the first tubular cavity is connected to the hollow cavity, and the other end of the first tubular cavity is connected to the pump body, and the pump body is used to adjust the pressure of the hollow cavity and change the clamping force of the clamping member.

[0031] As a further improvement to the embodiment of the present application, the charging device further includes:

[0032] A pressure-controlling member, wherein a second tubular cavity is provided inside the pressure-controlling member;

[0033] The first lumen, the second lumen and the pump body constitute the pressure charging channel;

[0034] The pressure control component includes: a pressure detection meter and a valve;

[0035] The pressure detection gauge is installed on the tube wall of the pressure control member and is used to detect the pressure of the charging channel and the hollow cavity;

[0036] A valve is installed at the second lumen and is used to control the opening and closing of the charging channel.

[0037] As a further improvement to the embodiment of the present application, the pump body is configured as a syringe;

[0038] The injection head of the syringe includes an injection port and a skirt structure, wherein the skirt structure surrounds the injection port;

[0039] The skirt structure is engaged with the outer wall of the conveying member, the injection port is engaged with the inner wall of the conveying member, and the syringe inputs gas into the lumen.

[0040] Compared with the prior art, the vascular tissue clip according to the present application has the following advantages:

[0041] The blood vessels are clamped by using the through space in the clamping piece. The clamping piece can be deformed under pressure control to adjust the clamping force on the blood vessels. When clamping different types of blood vessels, the clamping force on the blood vessels can be flexibly adjusted so that the clamping force can block the blood flow in the blood vessels, ensure clamping stability, and at the same time not damage the blood vessel endothelium.

[0042] A charging device is used to change the pressure inside the hollow cavity, and a detachable pressure-maintaining device is provided. After the pressure-maintaining device and the charging device are disassembled, the pressure-maintaining device can be closed, so that the clamping assembly and the pressure-maintaining device are placed independently in the body, avoiding the charging device blocking the surgical view. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 1 is a schematic structural diagram of a vascular tissue clip according to one embodiment of the present application;

[0044] Figure 2 is a partial structural schematic diagram of a vascular tissue clip according to one embodiment of the present application;

[0045] Figure 3 This is one of the structural schematic diagrams of a blood vessel after being separated by a tissue clip according to one embodiment of the present application;

[0046] Figure 4 This is one of the structural schematic diagrams of a blood vessel after being separated by a tissue clip according to one embodiment of the present application;

[0047] Figure 5 1 is a schematic structural diagram of a clamping member of a vascular tissue clip according to one embodiment of the present application;

[0048] Figure 6 1 is a schematic structural diagram of a stent for a vascular tissue clip according to one embodiment of the present application;

[0049] Figure 7 1 is a schematic structural diagram of a pressure-inflating device for a vascular tissue clip according to one embodiment of the present application;

[0050] Figure 8 1 is a schematic structural diagram of a pump body of a vascular tissue clip according to one embodiment of the present application;

[0051] Figure 9 3 is a schematic structural diagram of a pressure control component of a vascular tissue clamp according to one embodiment of the present application.

[0052] Description of main reference numerals:

[0053] 1. Tissue clamp for blood vessels; 10. Clamping assembly; 110. Clamping member; 111. First sac; 112. Second sac; 113. Connecting sac; 1131. First branch tube; 1132. Second branch tube; 1133. Third branch tube; 120. Bracket; 121. First support frame; 122. Second support frame; 123. Third support frame; 1231. Through hole; 20. Pressure maintaining device; 210. Valve core; 211. First matching part; 30. Pressurizing device; 310. Conveying member; 320. Pump body; 321. Injection port; 322. Skirt structure; 330. Pressure control member; 331. Pressure detection gauge; 332. Valve. DETAILED DESCRIPTION

[0054] In order to make the objectives, technical solutions and advantages of this application more clear, this application is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings.

[0055] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0056] It should be noted that, to more clearly describe the vascular tissue clip, the term "front end" is defined herein to refer to the end facing the surgical tissue during the surgical procedure, and the term "rear end" refers to the end facing away from the surgical tissue during the surgical procedure. Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are intended solely to describe specific embodiments and are not intended to limit the present invention.

[0057] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0058] like Figure 1 As shown, a vascular tissue clip 1 according to an embodiment of the present application includes a clamping assembly 10 , a pressure maintaining device 20 and a pressure charging device 30 .

[0059] like Figure 2 and Figure 3 As shown, the clamping assembly 10 includes a clamping member 110, and the clamping member 110 is surrounded by a through space, such as Figure 3The size of the through space is shown at a in the middle. The clamping member 110 is used to clamp the blood vessel passing through the through space. The interior of the clamping member 110 is a hollow cavity, and the clamping member 110 can be deformed with the pressure of the hollow cavity; a through cavity is provided inside the pressure maintaining device 20, one end of the through cavity is connected to the hollow cavity, and the other end of the through cavity can be closed; the charging device 30 includes a charging channel, and the charging device 30 and the pressure maintaining device 20 are detachably connected; when the charging device 30 and the pressure maintaining device 20 are connected, the other end of the through cavity is opened, and the through cavity is connected to the charging channel; when the charging device 30 and the pressure maintaining device 20 are disconnected, the other end of the through cavity is closed.

[0060] In this embodiment, the clamping member 110, upon deformation under pressure, can compress or expand the through-space. Compressing the through-space exerts a clamping force on the blood vessel within the through-space. As the pressure within the hollow cavity gradually increases, the clamping force exerted by the clamping member 110 on the blood vessel increases. As the pressure increases, the clamping force applied to the blood vessel can be quantitatively controlled. When using the vascular tissue clip 1, the clamping force can be adjusted for different blood vessels, effectively blocking blood flow and ensuring clamping stability without damaging the vascular endothelium.

[0061] After clamping the blood vessel, the clamping member 110 can be removed from the pressure-maintaining device 20 and the pressure-charging device 30. The pressure-maintaining device 20 maintains pressure within the hollow cavity, and the clamping state can be maintained even after the pressure-charging device 30 is separated. The clamping assembly 10 and the pressure-maintaining device 20 can be independently located within the patient's body, preventing the pressure-charging device 30 from obstructing the surgical view. Furthermore, the clamping assembly 10 and the pressure-maintaining device 20 have a simple structure and occupy a small space.

[0062] In a specific embodiment, in the initial state, the hollow cavity in the clamping member 110 is under an initial pressure, allowing the blood vessel to be clamped to enter the through-hole space. The charging device 30 is used to charge the hollow cavity, the pressure in the hollow cavity increases, the clamping member 110 deforms, the through-hole space is gradually compressed, and the clamping member 110 applies a clamping force to the blood vessel, gradually sealing the blood vessel and blocking blood flow in the blood vessel. The vascular tissue clamp 1 can maintain clamping in this state until the clamping is completed, and the charging device 30 is opened to reduce the pressure in the hollow cavity and release the blood vessel. Alternatively, after blocking the blood flow, the pressure-maintaining device 20 and the charging device 30 are disassembled. After the two are separated, one end of the pressure-maintaining device 20 is automatically closed, the hollow cavity is maintained at a preset pressure, and the clamping member 110 continues to clamp the blood vessel.

[0063] In the embodiments of the present application, Figure 3 and Figure 4 As shown, the clamping assembly 10 includes a bracket 120 , which at least partially surrounds a side of the clamping member 110 away from the through space.

[0064] In this embodiment, a bracket 120 surrounding one side of the clamp 110 is used to secure the clamp 110. As pressure on the clamp 110 increases, the bracket 120 provides a reaction force for the clamp 110. The clamp 110 does not expand outward from the through-space, but only expands in a direction that compresses the through-space, achieving the effect of compressing the through-space. The inner wall of the bracket 120 supports and limits the clamp 110, ensuring its stability and controllability.

[0065] In the embodiments of the present disclosure, Figure 6 As shown, stent 120 includes a first support frame 121, a second support frame 122, and a third support frame 123. The first and second support frames 121, 122 extend parallel to each other in the same direction. One end of the third support frame 123 is connected to the first support frame 121, and the other end of the third support frame 123 is connected to the second support frame 122. A gap is defined between the first and second support frames 121, 122. The clamping member 110 is positioned within the gap between the first and second support frames 121, 122. To clamp a blood vessel, the first and second support frames 121, 122 are initially aligned perpendicular to the axis of the blood vessel, allowing the blood vessel to enter the interpenetrating space. The third support frame 123 connects the first and second support frames 121, 122 into a relatively fixed structure. The gap between the first and second support frames 121, 122 remains constant, and the clamping portion is confined between the first and second support frames 121, 122 as it expands.

[0066] In a specific embodiment, the first support frame 121, the second support frame 122 and the third support frame 123 are configured as an integrated structure. The bracket 120 forms a semi-enclosed structure, and the clamping portion is accommodated in the inner space of the semi-enclosed structure.

[0067] In the embodiments of the present application, Figure 3 and Figure 4 As shown, the clamping member 110 includes a first capsule 111, a second capsule 112 and a connecting capsule 113. The first capsule 111 and the second capsule 112 are arranged opposite to each other, and the through space is located between the opposite surfaces of the first capsule 111 and the second capsule 112; the connecting capsule 113 is connected with the first capsule 111 and the second capsule 112 respectively, and the interior of the first capsule 111, the interior of the connecting capsule 113 and the interior of the second capsule 112 constitute a hollow cavity.

[0068] In this embodiment, when the charging device 30 charges the hollow cavity, the medium enters the interior of the first capsule 111 and the interior of the second capsule 112 respectively through the interior of the connecting capsule 113, and the gap between the first capsule 111 and the second capsule 112 gradually becomes smaller until the opposite surfaces of the first capsule 111 and the second capsule 112 are in contact, and then the charging is continued. The first capsule 111 and the second capsule 112 apply two opposite squeezing forces to the blood vessel, increasing the clamping force applied to the blood vessel until the clamping force meets the requirements.

[0069] In the specific embodiment of the present application, the first bladder 111, the connecting bladder 113, and the second bladder 112 form a U-shaped extended bladder. The semi-enclosed space of the U-shaped structure is a through-space for clamping the blood vessel. The U-shaped clamping member 110 is compact and effectively applies clamping force on both opposing sides.

[0070] In an embodiment of the present application, the first capsule 111 includes a first plane, the second capsule 112 includes a second plane, and the first plane and the second plane are arranged opposite to each other in a first direction.

[0071] In this embodiment, the first and second planes are positioned relative to each other, ensuring that the distance between them is uniform at all locations. The first and second planes contact the clamped blood vessel, and the clamping force applied to the blood vessel is equal at all locations along its radial direction, ensuring secure clamping. As the first and second balloons 111, 112 gradually expand, they flatten the blood vessel, sealing it in this flattened manner and improving the sealing effect.

[0072] In the embodiments of the present application, Figure 5 As shown, the connecting sac 113 includes a first branch tube 1131, a second branch portion and a third branch tube 1133. The first branch tube 1131 is connected to the first sac 111, and the second branch tube 1132 is connected to the second sac 112; the third branch tube 1133 is connected to the charging channel, and the third branch tube 1133 passes through the bracket 120 and extends to the side of the bracket 120 away from the clamping member 110.

[0073] In this embodiment, the first branch tube 1131 and the second branch tube 1132 are used to connect the connecting bag 113 with the first bag 111 and the second bag 112 at the same time, and the third branch tube 1133 is connected with the charging channel on the other side of the bracket 120. The medium flow in the first bag 111 and the second bag 112 is equal, the pressure therein is equal in real time, and the same deformation occurs. The clamping force on both sides of the clamped blood vessel is equal, ensuring controllability and safety during clamping.

[0074] In a specific embodiment, a through hole 1231 is provided on the third support frame 123 , and the third branch pipe 1133 passes through the through hole 1231 .

[0075] In an embodiment of the present application, the pressure maintaining device 20 includes a valve core 210, which is located at one end of the pressure maintaining device 20 close to the charging device 30; when the charging device 30 is connected to the pressure maintaining device 20, the charging device 30 presses the valve core 210, and the valve core 210 enters an open state; when the charging device 30 is disconnected from the pressure maintaining device 20, the valve core 210 returns to a closed state.

[0076] In this embodiment, if Figure 4 As shown, the valve core 210 adjusts its open or closed state based on the applied pressure, achieving controllable on / off control of the pressure-maintaining device 20. When the pressure-maintaining device 20 and the pressure-charging device 30 are connected, the valve core 210 opens, allowing the through cavity and the pressure-charging channel to communicate with each other. When the pressure-maintaining device 20 and the pressure-charging device 30 are separated, the valve core 210 automatically closes, sealing the hollow cavity and the interior of the through cavity, maintaining the clamping state. Furthermore, when the clamp 110 and the pressure-maintaining device 20 are independently within the body, the valve core 210 can be pressed to cause the clamp 110 to expel the medium, thereby removing the vascular tissue clamp 1.

[0077] It should be noted that the valve core 210 includes a core body, an elastic member, and a sleeve. The core body is provided with a radially extending protrusion, and the elastic member is sleeved on the core body. The elastic member and the core body are located together inside the sleeve, and the elastic member abuts against the inner wall of the sleeve's tube mouth. In the natural state, the protrusion abuts against the outer wall of the sleeve's tube mouth, and the sleeve's tube mouth is closed by the protrusion, presenting a closed cavity state. When external pressure is applied to the core body, the core body and its protrusion move axially along the sleeve, the elastic member is compressed, and the protrusion leaves the sleeve's tube mouth. At this time, the sleeve's tube mouth is open, and gas or liquid can pass through the tube mouth. After the pressure is stopped, the elastic member resets, and the valve core 210 returns to the closed state.

[0078] In some specific embodiments, the pressure-maintaining device 20 has a through cavity inside, with a valve core 210 disposed at the end of the through cavity. A first mating portion 211 is disposed on the outside of the pressure-maintaining device 20, and a second mating portion is disposed on the outside of the pressure-charging device 30. This allows for multiple ventilation methods to meet the requirements for blood vessel clamping during surgery. For example, when the pressure-maintaining device 20 and the pressure-charging device 30 are connected, the through cavity and the pressure-charging pipeline are automatically connected, and the pressure-charging device 30 can charge the through cavity and the hollow cavity or exhaust air from the hollow cavity. For example, if the pressure-charging device 30 blocks the surgical field of view, the pressure-maintaining device 20 and the pressure-charging device 30 can be separated by a simple plug-in or rotation operation. After separation, the through cavity and the hollow cavity are automatically sealed by the internal valve core 210. The separation of the pressure-charging device 30 does not affect the clamping of the clamp 110 on the blood vessel, and the clamping force of the clamp 110 remains at the preset state. When clamping is no longer needed, the gas can be exhausted by pressing the valve core 210. Through simple and quick operations, the clamping state, the independent clamping state, the disassembly clamping state and the switching process therebetween can be completed.

[0079] In an embodiment of the present application, the charging device 30 includes a resisting portion, which is located in the charging channel. The resisting portion is distributed on the radial plane of the charging channel, and part of it is a blocking surface and the other part is a through opening; when the charging device 30 and the pressure maintaining device 20 are connected, the blocking surface presses the valve core 210, and the charging channel and the through cavity are connected.

[0080] In this embodiment, when the charging device 30 and the pressure-maintaining device 20 are connected, the core of the valve core 210 is located at the axial center of the charging channel, making it impossible to effectively apply a pressing force to the core. Therefore, the blocking surface of the resisting portion applies a pressing force to the valve core 210, allowing the medium to pass through the opening. While pressing the valve core 210, the charging device 30 does not affect the passage of the medium during charging or depressurization.

[0081] In the embodiments of the present application, Figure 7 As shown, the charging device 30 includes a conveying member 310 and a pump body 320. A first tubular cavity runs through the interior of the conveying member 310. One end of the first tubular cavity is connected to the hollow cavity, and the other end of the first tubular cavity is connected to the pump body 320. The pump body 320 is used to adjust the pressure of the hollow cavity and change the clamping force of the clamping member 110.

[0082] In this embodiment, the pump body 320 imparts kinetic energy to the medium, transporting the medium through the first lumen into the hollow cavity and the through cavity. As the medium continues to increase, the pressure in the hollow cavity continues to increase. When the hollow cavity is depressurized, the medium can also be discharged through the first lumen.

[0083] In a specific embodiment, the pump body 320 is configured as an air pump, and the medium delivered by the pressure-charging device 30 is gas. In another specific embodiment, the pump body 320 is configured as a liquid pump, and the medium delivered by the pressure-charging device 30 is liquid.

[0084] In a specific embodiment, the conveying member 310 is configured as a rubber hose or a silicone hose.

[0085] In the embodiments of the present application, Figure 8 As shown, the pump body 320 is configured as a syringe. The syringe's injection head includes an injection port 321 and a skirt structure 322. The skirt structure 322 surrounds the injection port 321 and engages with the outer wall of the delivery member 310. The injection port 321 engages with the inner wall of the delivery member 310, allowing the syringe to deliver gas into the lumen. When the syringe is connected to the first lumen, the syringe's piston is pushed to pressurize the first lumen. The skirt structure 322 and the delivery member 310 are tightly connected to prevent leakage of the medium at the connection.

[0086] In other embodiments, the pump body 320 is configured as an electronic air pump or an electronic liquid pump.

[0087] In the embodiments of the present application, Figure 7 and Figure 9 As shown, the charging device 30 also includes a pressure control member 330, which has a second tubular lumen extending therethrough. The first and second tubular lumens, along with the pump body 320, form a charging channel. The pressure control member 330 includes a pressure gauge 331 and a valve 332. The pressure gauge 331 is mounted on the wall of the pressure control member 330 and is used to monitor the pressure in the charging channel and the hollow cavity. The valve 332 is mounted in the second tubular lumen and is used to control the opening and closing of the charging channel.

[0088] The pressure in the hollow cavity is controlled by the pressure detection meter 331 and the valve 332, so that the clamping force applied to the blood vessel can be quantitatively controlled, further improving the clamping stability and safety.

[0089] In a specific embodiment, during a minimally invasive surgical operation, the doctor will establish a puncture channel on the patient's skin, connect the clamping assembly 10, the charging device 30 and the charging device 30, and the clamping assembly 10 will be extended along the puncture channel into the hemostatic blood vessel in the patient's body. The conveying member 310 passes through the puncture channel, and the pump body 320 and the pressure control member 330 are placed outside the patient's body. The operator observes the pressure detection meter 331 outside the body and selects to inflate the pump body 320 or close the valve 332 according to the data displayed on the pressure detection meter 331. If the valve 332 is closed, the pressure in the hollow cavity is maintained at a preset size, and the clamping member 110 applies a preset clamping force to the blood vessel.

[0090] In an embodiment of the present application, a vascular tissue clamp 1 is proposed. The blood vessel is clamped using a through-space within a clamping member 110. The clamping member 110 can deform under pressure control, thereby adjusting the clamping force on the blood vessel. When clamping different types of blood vessels, the clamping force can be flexibly adjusted to block blood flow, ensuring clamping stability without damaging the vascular endothelium. A pressure-charging device 30 is used to change the pressure within the hollow cavity. A detachably connected pressure-maintaining device 20 is also provided. After the pressure-maintaining device 20 and the pressure-charging device 30 are disassembled, the pressure-maintaining device 20 can be sealed, allowing the clamping assembly 10 and the pressure-maintaining device 20 to be independently placed within the body, preventing the pressure-charging device 30 from obstructing the surgical field of view.

[0091] The foregoing descriptions of specific exemplary embodiments of the present application have been presented for purposes of illustration and description.

[0092] These descriptions are not intended to limit the present application to the precise forms disclosed, and it is apparent that many modifications and variations are possible in light of the above teachings. The exemplary embodiments are selected and described for the purpose of explaining the specific principles of the present application and their practical application, thereby enabling those skilled in the art to make and utilize the various exemplary embodiments of the present application and various options and variations. The scope of the present application is intended to be defined by the claims and their equivalents.

Claims

1. A vascular tissue clip, characterized in that: include: A clamping assembly, the clamping assembly comprising a clamping member, the clamping member surrounding a through space, the clamping member being used to clamp a blood vessel passing through the through space; The interior of the clamping member is a hollow cavity, and the clamping member can be deformed according to the pressure of the hollow cavity; A pressure-maintaining device, wherein a through cavity is provided inside the pressure-maintaining device, one end of the through cavity is connected to the hollow cavity, and the other end of the through cavity is sealable; A charging device, the charging device comprising a charging channel, the charging device being detachably connected to the pressure-maintaining device; When the pressure-charging device and the pressure-maintaining device are connected, the other end of the through cavity is opened, and the through cavity is communicated with the pressure-charging channel; When the pressure charging device and the pressure maintaining device are disconnected, the other end of the through cavity is closed.

2. The vascular tissue clip according to claim 1, wherein: The clamping assembly comprises: A bracket at least partially surrounds a side of the clamping member away from the through space.

3. The vascular tissue clip according to claim 2, wherein: The clamping member comprises: a first capsule and a second capsule, wherein the first capsule and the second capsule are arranged opposite to each other, and the through space is located between the opposite surfaces of the first capsule and the second capsule; A connecting capsule is connected to the first capsule and the second capsule respectively, and the interior of the first capsule, the interior of the connecting capsule and the interior of the second capsule constitute the hollow cavity.

4. The vascular tissue clip according to claim 3, wherein: The communicating capsule comprises: a first branch pipe and a second branch pipe, wherein the first branch pipe is connected to the first sac, and the second branch pipe is connected to the second sac; A third branch pipe is connected to the pressure charging channel, and the third branch pipe passes through the bracket and extends to a side of the bracket away from the clamping member.

5. The vascular tissue clip according to claim 3, wherein: The first capsule includes a first plane, the second capsule includes a second plane, and the first plane and the second plane are arranged opposite to each other in a first direction.

6. The vascular tissue clip according to claim 1, wherein: The pressure maintaining device comprises: a valve core, the valve core being located at one end of the pressure maintaining device close to the pressure charging device; When the charging device is connected to the pressure maintaining device, the charging device presses the valve core, and the valve core enters an open state; When the charging device is disconnected from the pressure maintaining device, the valve core returns to the closed state.

7. The vascular tissue clip according to claim 6, wherein: The charging device comprises: A resisting portion, the resisting portion is located in the charging channel, the resisting portion is distributed on a radial plane of the charging channel, and a portion thereof is a blocking surface and another portion thereof is a through opening; When the charging device and the pressure maintaining device are connected, the blocking surface presses the valve core, and the charging channel and the through cavity are communicated.

8. The vascular tissue clip according to claim 1, wherein: The charging device comprises: The conveying member and the pump body, the interior of the conveying member is penetrated by a first tubular cavity, one end of the first tubular cavity is connected to the hollow cavity, and the other end of the first tubular cavity is connected to the pump body, and the pump body is used to adjust the pressure of the hollow cavity and change the clamping force of the clamping member.

9. The vascular tissue clip according to claim 8, wherein: The charging device also includes: A pressure-controlling member, wherein a second tubular cavity is provided inside the pressure-controlling member; The first lumen, the second lumen and the pump body constitute the pressure charging channel; The pressure control component includes: a pressure detection meter and a valve; The pressure detection gauge is installed on the tube wall of the pressure control member and is used to detect the pressure of the charging channel and the hollow cavity; A valve is installed at the second lumen and is used to control the opening and closing of the charging channel.

10. The vascular tissue clip according to claim 8, wherein: The pump body is configured as a syringe; The injection head of the syringe includes an injection port and a skirt structure, wherein the skirt structure surrounds the injection port; The skirt structure is engaged with the outer wall of the conveying member, the injection port is engaged with the inner wall of the conveying member, and the syringe inputs gas into the lumen.

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