CN117503221A

CN117503221A - Blood vessel puncher

Info

Publication number: CN117503221A
Application number: CN202410009077.9A
Authority: CN
Inventors: 刘丽娜; 袁清献; 张忠英
Original assignee: Hongxin Kechuang Biotechnology Beijing Co ltd
Current assignee: Huarong Kechuang Biotechnology Tianjin Co ltd
Priority date: 2024-01-04
Filing date: 2024-01-04
Publication date: 2024-02-06
Anticipated expiration: 2044-01-04
Also published as: CN117503221B

Abstract

The invention relates to the technical field of medical appliances and discloses a blood vessel puncher, which comprises a shell, a thrust piece, a firing elastic piece, a locking piece and a cutting knife. The shell is internally provided with an accommodating cavity, the thrust piece is arranged in the accommodating cavity in a sliding way, and a part of the thrust piece can be exposed out of a compression opening on the side wall of the shell, so that an operator can conveniently contact and stir the thrust piece; the two ends of the percussion elastic piece are respectively connected with the bottom of the accommodating cavity and the thrust piece, and the thrust piece can compress the percussion elastic piece to store force; the locking piece is connected with the thrust piece, and the clamping cutter can be selectively sleeved, so that the cutter can be conveniently and quickly replaced, and the application range is enlarged. When the percussion elastic piece compresses and stores force, the cutting knife is arranged in the accommodating cavity; when the percussion elastic piece is released, the thrust piece is stressed to push the cutting knife to pop out rapidly through the punching opening at the head of the shell, an anastomotic window is established, the difficulty of vascular punching is reduced, the operation efficiency and the treatment effect are improved, and the damage to a patient is reduced; can be recycled, and reduces the medical cost.

Description

Blood vessel puncher

Technical Field

The invention relates to the technical field of medical instruments, in particular to a blood vessel puncher.

Background

The blood vessel puncher is a medical instrument and is used for carrying out puncture operation in blood vessels, the blood vessel puncher can reduce damage and bleeding amount in the operation process, the recovery is quick, the operation is simple, and the operation efficiency and the safety are improved. The main components of the existing vascular punch comprise a punching knife, a catheter and a shell. The perforating knife is the part for puncturing the blood vessel, the catheter is the pipe for guiding the perforating knife into the blood vessel, and the shell is the part for protecting the perforating knife and the catheter.

In the prior art, in some surgical procedures, an anastomotic window is required to be established by a surgical knife or scissors or a special vascular punch, but the established anastomotic window is often limited by the hand strength and speed of an operator, so that the treatment effect is greatly reduced; or the instrument device is a disposable device and cannot be recycled, the use cost is generally high, and the burden of a patient is increased; or the specification division is not clear, and the perforating cutters with different diameters cannot be timely and flexibly selected and replaced, so that the diameters of the bypass blood vessels are not matched with each other, and the obstruction of the operation process is increased.

Disclosure of Invention

The invention aims to provide a blood vessel puncher, which can quickly replace a cutting knife, flexibly open up a proper blood vessel anastomosis window according to different bypass blood vessel diameters and enlarge the application range of the blood vessel puncher; the blood vessel puncher can be used repeatedly, so that the waste of resources is reduced, and the medical cost is reduced; the cutting knife is firmly installed, the punching process is smooth and rapid, the operation efficiency and the treatment effect can be improved, and the damage of a patient is reduced.

To achieve the purpose, the invention adopts the following technical scheme:

a vascular punch comprising:

the shell is internally provided with a containing cavity, one end of the shell is provided with a punching opening, and the side wall of the shell is provided with a compression opening;

the pushing piece is slidably arranged in the accommodating cavity and comprises a reverse pushing part, and part of the reverse pushing part can be exposed out of the compression opening;

the triggering elastic piece, one end of the triggering elastic piece is connected with the inner wall of the other end of the shell, and the other end of the triggering elastic piece is connected with the thrust piece;

the locking piece is arranged in the accommodating cavity and is connected with the thrust piece;

the cutter comprises a cutter head and a cutter tail, the cutter tail is arranged in the locking piece, the cutter tail is detachably connected with the locking piece, the cutter head can selectively penetrate through the punching opening, and when the firing elastic piece is in a compression force storage state, the cutter head is arranged in the accommodating cavity; when the firing elastic piece is in a firing state, the cutter head can extend out of the punching opening.

As the preferable technical scheme of blood vessel puncher, the blood vessel puncher includes the mounting, the internal diameter of mounting diminishes gradually, the mounting cover is located the periphery of retaining member, and with retaining member threaded connection, the mounting can selectively lock the retaining member.

As the preferable technical scheme of the blood vessel puncher, the blood vessel puncher comprises a firing part, wherein the side wall of the shell is provided with a firing window, and part of the firing part can expose the firing window; the percussion part comprises a rotating shaft part, a clamping part and a pressing part, the rotating shaft part is rotatably connected with the shell, the clamping part and the pressing part are respectively arranged at two sides of the rotating shaft part, the clamping part is provided with a first butt joint surface, the thrust part is provided with a second butt joint surface, and the first butt joint surface and the second butt joint surface can be selectively abutted; when the rotating shaft part rotates along a first direction, the clamping part is close to the accommodating cavity, the first abutting surface is abutted with the second abutting surface, and the firing elastic piece is in the compression force accumulation state; when the rotating shaft part rotates in the reverse direction of the first direction, the clamping part is far away from the thrust piece, and the firing elastic piece is in the firing state.

As a preferable technical scheme of the vascular puncher, the firing piece comprises a reset elastic part, one end of the reset elastic part is connected with the pressing part, and the other end of the reset elastic part is connected with the shell; when the reset elastic part is in a release state, the pressing part is far away from the accommodating cavity; when the reset elastic part is in a compressed state, the pressing part is close to the accommodating cavity.

As the preferable technical scheme of the blood vessel puncher, the cutting knife is arranged in a ring shape, the thrust piece comprises a limiting part, and the cutting knife is sleeved on the limiting part.

As the preferable technical scheme of blood vessel puncher, be provided with barb portion on the cutting knife, barb portion's one end with the inner wall connection of tool bit, barb portion's the other end extends towards the opposite direction that punches, just barb portion to the axis direction slope of cutting knife, barb portion is disposed to can block blood vessel punching blanking follow the tool bit drops.

As the preferable technical scheme of the blood vessel puncher, the thrust piece is provided with a limiting groove, the triggering elastic piece is abutted with the thrust piece, and the triggering elastic piece is arranged in the limiting groove.

As the preferable technical scheme of the vascular puncher, the thrust piece comprises a push handle, the push handle is sleeved on the reverse pushing part, and the push handle is provided with a non-slip protrusion.

As the preferable technical scheme of the vascular puncher, two compression openings are oppositely arranged, two reverse pushing parts are arranged, and the reverse pushing parts are arranged in one-to-one correspondence with the compression openings.

As the preferable technical scheme of the vascular puncher, the shell comprises an upper shell and a lower shell, the upper shell is detachably connected with the lower shell, and the upper shell and the lower shell are enclosed to form the accommodating cavity.

The invention has the beneficial effects that:

the vascular puncher provided by the invention comprises a shell, a thrust piece, a firing elastic piece, a locking piece and a cutting knife, wherein an accommodating cavity is formed in the shell, the thrust piece is slidably arranged in the accommodating cavity, the thrust piece comprises a reverse thrust part, and part of the reverse thrust part can be exposed out of a compression opening formed in the side wall of the shell, so that an operator can conveniently contact and stir the thrust piece; one end of the percussion elastic piece is connected with the bottom of the accommodating cavity, and the other end of the percussion elastic piece is connected with the thrust piece, and the thrust piece can slide and compress the percussion elastic piece to store force; the locking piece is also arranged in the accommodating cavity and is connected with the thrust piece, the locking piece is used for selectively sleeving and clamping the cutter tail of the cutter, the cutter with proper size is convenient and quick to install and replace, the purpose of flexibly opening up proper vascular anastomosis windows for different bypass blood vessel diameters is achieved, the application range of the vascular puncher is improved, and firm clamping force is provided for the cutter. Simultaneously, the head of casing is provided with the opening that punches, and the tool bit of cutting knife can pass the opening that punches according to the drive of thrust piece selectivity. When an operator dials the reverse pushing part to enable the pushing part to compress the percussion elastic part, the percussion elastic part is in a compressed force storage state, and the cutter head is arranged in the accommodating cavity; when the operator releases the reverse pushing part, the triggering elastic piece releases and recovers deformation, and the pushing piece receives the force of the triggering elastic piece, so that the cutter is driven to pop out rapidly, the cutter head establishes an anastomotic window on a blood vessel through the punching opening, the operation difficulty of the operator on the blood vessel punching is reduced, the punching process is smooth and rapid, the operation efficiency and the treatment effect can be improved, and the damage of a patient is reduced; the blood vessel puncher can be used repeatedly, so that the waste of resources is reduced, and the medical cost is reduced.

Drawings

FIG. 1 is a schematic view of a blood vessel punch according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a vascular punch provided in accordance with an embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural view of a vascular punch (upper case not shown) according to an embodiment of the present invention;

FIG. 5 is a schematic view showing the structure of an upper case of a vascular punch according to an embodiment of the present invention;

FIG. 6 is a schematic view of a thrust piece (not shown) of a vascular punch according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of a thrust piece of a vascular punch according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a cutting blade of a vascular punch according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of a configuration of a cutter, a locking member and a thrust member of a vascular punch according to an embodiment of the present invention;

fig. 10 is a schematic structural view of the cooperation of the cutting knife, the locking member, the fixing member and the thrust member of the vascular punch according to the embodiment of the present invention.

In the figure:

1. a housing; 11. an upper case; 12. a lower case; 13. punching an opening; 14. a compression opening; 15. firing window; 16. the second limit groove;

2. a thrust piece; 21. a thrust reverser; 22. a push handle; 23. a second abutment surface; 24. a limit part; 25. a limit groove;

3. firing the elastic member; 4. a locking member; 5. a fixing member;

6. a cutting knife; 61. a cutter head; 62. a cutter tail; 63. a barb portion;

7. a firing member; 71. a rotating shaft portion; 72. a clamping part; 721. a first mating surface; 73. a pressing part; 731. a firing button.

Detailed Description

The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1 to 10, the present invention discloses a vascular punch comprising a housing 1, a thrust member 2, a firing spring 3, a locking member 4 and a cutter 6. The inside of the shell 1 is provided with a containing cavity, the thrust piece 2 is arranged in the containing cavity in a sliding way, the thrust piece 2 comprises a reverse thrust part 21, so that part of the reverse thrust part 21 can be exposed out of a compression opening 14 formed in the side wall of the shell 1, and an operator can conveniently contact and stir the reverse thrust part 21 to move the thrust piece 2; one end of the percussion elastic piece 3 is arranged at the bottom of the accommodating cavity and connected with the inner wall of the shell 1, the other end of the percussion elastic piece is connected with the thrust piece 2, and the thrust piece 2 can slide and compress the percussion elastic piece 3 to store elastic potential energy; the cutter 6 comprises a cutter head 61 and a cutter tail 62, the locking piece 4 is also arranged in the accommodating cavity and is connected with the thrust piece 2, the locking piece 4 is used for selectively sleeving and clamping the cutter tail 62, the cutter 6 and the locking piece 4 are detachably connected, the cutter 6 with proper size is conveniently and rapidly installed and replaced, a proper vascular anastomosis window is flexibly opened up according to different bypass vascular diameters, the application range of the vascular puncher is enlarged, and firm clamping force is provided for the cutter 6. Meanwhile, a perforated opening 13 is provided at the end of the housing 1, and the cutter head 61 of the cutter 6 can selectively pass through the perforated opening 13 according to the pushing of the thrust member 2.

Firstly, selecting a cutting knife 6 with proper specification according to the diameter of a bypass blood vessel, inserting a tail 62 of the cutting knife 6 into a locking piece 4 for clamping, and fixing the cutting knife 6 on a thrust piece 2; the operator holds the shell 1 by hand, and can directly toggle the counter-pushing part 21 through the compression opening 14, so that the pushing piece 2 is forced to move to compress the percussion elastic piece 3, the percussion elastic piece 3 is in a compressed force storage state, and the cutter head 61 of the cutting knife 6 is arranged in the accommodating cavity; the vascular puncher is placed at a proper position on a blood vessel, an operator releases the reverse pushing part 21, the triggering elastic piece 3 releases and recovers deformation, the pushing piece 2 is subjected to the force of the triggering elastic piece 3, so that the cutting knife 6 is driven to pop up rapidly, the knife head 61 stretches out through the punching opening 13, and an anastomotic window is established on the blood vessel, and the punching operation is completed. By using the vascular puncher, the technical requirements on an operator can be reduced, the operation difficulty of vascular punching is simplified, the cutting knife 6 can be quickly replaced, the operation efficiency is improved, the punching process is smooth and quick, a perfect anastomosis window can be established, the treatment effect is improved, the damage to a patient is reduced, and the vascular puncher is beneficial to healing after the operation; the blood vessel puncher can be used repeatedly, so that the waste of resources is reduced, and the medical cost is reduced.

Illustratively, the locking member 4 is fixed to the thrust member 2 by laser welding, further reinforcing the connection of the locking member 4 to the thrust member 2.

Specifically as shown in fig. 2, 9 and 10, the vascular puncher further comprises a fixing piece 5, the locking piece 4 is provided with external threads, the fixing piece 5 is provided with internal threads, the inner diameter of the fixing piece 5 is gradually reduced, the fixing piece 5 is sleeved on the periphery of the locking piece 4 and is in threaded connection with the locking piece 4, the locking piece 4 can be selectively further locked, the cutting knife 6 can be firmly fixed, and the structural stability of the vascular puncher is enhanced.

As is preferable, as can be seen in fig. 4 and 5, the vessel punch comprises a firing member 7, and a firing window 15 is arranged on the side wall of the shell 1, so that part of the firing member 7 can expose the firing window 15, and the control of an operator is facilitated; the firing member 7 includes a rotating shaft portion 71, a locking portion 72, and a pressing portion 73, and the rotating shaft portion 71 is rotatably connected to the housing 1. Specifically, the rotating shaft portions 71 are disposed at two ends of the firing member 7, and rotating shaft fixing holes are disposed on opposite sides of the firing window 15, respectively, and the rotating shaft portions 71 at two ends are disposed in the rotating shaft fixing holes, respectively, so that the firing member 7 can rotate on the housing 1. As shown in fig. 2 and 3, the engaging portion 72 and the pressing portion 73 are respectively disposed at both sides of the rotating shaft portion 71, the engaging portion 72 is provided with a first abutting surface 721, and correspondingly, the thrust piece 2 is provided with a second abutting surface 23, the first abutting surface 721 and the second abutting surface 23 can selectively abut, the thrust piece 2 is engaged with the engaging portion 72 to block the movement of the thrust piece 2, and the firing spring 3 is kept in a compressed force accumulation state.

Specifically, one hand of the operator presses the pressing part 73 inwards to enable the rotating shaft part 71 to rotate along a first direction, wherein the first direction is the direction marked in fig. 4, the pressing part 73 can be close to the accommodating cavity, the clamping part 72 is tilted away from the accommodating cavity, meanwhile, the other hand of the operator starts to stir the back pushing part 21, after the percussion elastic piece 3 is in a compressed force accumulation state, the pressing part 73 is released, the rotating shaft part 71 reversely rotates along the first direction, the clamping part 72 is close to the accommodating part, the first abutting surface 721 is abutted with the second abutting surface 23, the thrust piece 2 is fixed, and the percussion elastic piece 3 is kept in the compressed force accumulation state; the vascular puncher is placed at a proper position on a blood vessel, an operator presses the pressing part 73 again, the clamping part 72 releases the thrust piece 2, the percussion elastic piece 3 is in a percussion state, the cutting knife 6 pops up rapidly, the punching operation is completed, the percussion piece 7 is added, the force of the operator is saved, and the vascular puncher is more convenient and stable to operate. It will be appreciated that the vascular punch may be operated by a single hand by the operator, by pulling the counter-pushing portion 21 with the thumb, and by holding the vascular punch together with the other fingers and pressing the pressing portion 73 as appropriate, without being limited thereto.

Further, the firing member 7 includes a return elastic portion, one end of which is connected to the click portion 73, and the other end of which is connected to the housing 1; when the operator presses the pressing part 73, the reset elastic part is in a compressed state, and the pressing part 73 is close to the accommodating cavity; when the reset elastic part is in a release state, the pressing part 73 can be automatically far away from the accommodating cavity, and the reset elastic part can ensure that the position of the pressing part 73 is not loosened, so that the clamping stability of the clamping part 72 and the thrust piece 2 is ensured. Illustratively, the firing button 731 is provided on the outer side of the pressing portion 73, which is more convenient for the operator to press, and improves the ease of use of the vascular punch.

As shown in fig. 6 and 8 in particular, the cutting blade 6 is provided as an annular cutting blade 6 of metal material, having different diameters and different length specifications; in order to better fire the cutting knife 6, the firing path of the cutting knife 6 is smoother and more stable, the pushing piece 2 further comprises a limiting part 24, the cutting knife 6 is sleeved on the limiting part 24, limiting guide is carried out on the cutting knife 6, the cutting knife 6 is ensured to punch along the vertical firing direction, and damage to a patient is avoided.

In this embodiment, the cutting blade 6 is provided with a barb 63, one end of the barb 63 is connected with the inner wall of the cutter head 61, the other end extends in the opposite direction of punching, and the barb 63 is inclined in the axial direction of the cutting blade 6 and can be fastened inside the cutting blade 6, so that the inner diameter of the cutting blade 6 is gradually tightened from the cutter head 61 via the barb 63; after the blood vessel puncher fires and punches, because the firing rate of cutting knife 6 is faster, the blood vessel that cuts down punches the blanking and gets into annular cutting knife 6 in, because the inertia of cutting knife 6, the blood vessel punches the blanking and passes through inside and the removal of cutting knife 6 to the position between barb portion 63 and the sword tail 62, then receives gravity's order about, the blood vessel punches the blanking opposite direction and slides towards tool bit 61, barb portion 63 can lock and stranded blood vessel punching the blanking, blocks that the blood vessel punches the blanking and rolls off from tool bit 61 roll-off, prevents that the blood vessel from punching the blanking and getting into blood vessel or other tissues.

Preferably, the shell 1 comprises an upper shell 11 and a lower shell 12 which are detachably connected, the upper shell 11 and the lower shell 12 are surrounded to form a containing cavity, the vascular puncher can be conveniently opened, and the vascular puncher can be assembled, repaired or replaced in time, so that the vascular puncher is simple in structure and convenient to use. Illustratively, the outer part of the shell 1 is provided with anti-slip lines, and the shape of the shell 1 is designed to be convenient to hold and carry according to ergonomics, so that the use comfort and stability of the vascular puncher are further enhanced.

Optionally, the bottom end of the pushing piece 2 is provided with a limit groove 25, one end of the triggering elastic piece 3 is abutted against the pushing piece 2, and meanwhile, the triggering elastic piece 3 can be placed in the limit groove 25 to play a role in limiting and guiding the triggering elastic piece 3; correspondingly, the bottom of the accommodating cavity is provided with a second limit groove 16, the other end of the triggering elastic piece 3 is abutted with the accommodating cavity, the two ends of the triggering elastic piece 3 are respectively abutted, the disassembly and the replacement are convenient, and the assembly of the blood vessel puncher is more flexible and convenient.

Further, two compression openings 14 are oppositely arranged, two counter pushing portions 21 are arranged on two sides of the thrust piece 2, the counter pushing portions 21 are in one-to-one correspondence with the compression openings 14, an operator can stir the two counter pushing portions 21 at the same time, so that the stress of the thrust piece 2 is more stable and uniform, the path of the compression and firing elastic piece 3 is straighter, the abrasion of the inner structure of the vascular puncher can be effectively reduced, and the service life of the vascular puncher is prolonged.

As shown in fig. 7, the pushing piece 2 further includes a pushing handle 22, the pushing handle 22 is sleeved on the reverse pushing portion 21, and the pushing handle 22 is provided with a non-slip protrusion, so that the contact area between the pushing piece 2 and an operator can be increased, the operator can toggle the pushing handle 22 more stably, physical strength is saved for the operator, contact slipping is prevented, and potential safety hazard is reduced.

It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims

1. Blood vessel puncher, its characterized in that includes:

the device comprises a shell (1), wherein a containing cavity is formed in the shell (1), a punching opening (13) is formed in one end of the shell (1), and a compression opening (14) is formed in the side wall of the shell (1);

the thrust piece (2) is slidably arranged in the accommodating cavity, the thrust piece (2) comprises a reverse thrust part (21), and part of the reverse thrust part (21) can expose the compression opening (14);

the device comprises a shell (1) and a percussion elastic piece (3), wherein one end of the percussion elastic piece (3) is connected with the inner wall of the other end of the shell (1), and the other end of the percussion elastic piece (3) is connected with the thrust piece (2);

the locking piece (4) is arranged in the accommodating cavity, and the locking piece (4) is connected with the thrust piece (2);

the cutter (6), the cutter (6) comprises a cutter head (61) and a cutter tail (62), the cutter tail (62) is arranged in the locking piece (4), the cutter tail (62) is detachably connected with the locking piece (4), the cutter head (61) can selectively pass through the punching opening (13), and when the firing elastic piece (3) is in a compression force accumulation state, the cutter head (61) is arranged in the accommodating cavity; when the firing elastic piece (3) is in a firing state, the cutter head (61) can extend out of the punching opening (13).

2. The vascular punch according to claim 1, further comprising a fixing member (5), wherein an inner diameter of the fixing member (5) is gradually reduced, the fixing member (5) is sleeved on an outer circumference of the locking member (4) and is in threaded connection with the locking member (4), and the fixing member (5) can selectively lock the locking member (4).

3. The vascular punch according to claim 1, further comprising a firing member (7), wherein a firing window (15) is provided in a side wall of the housing (1), and wherein a portion of the firing member (7) is capable of exposing the firing window (15); the firing part (7) comprises a rotating shaft part (71), a clamping part (72) and a pressing part (73), the rotating shaft part (71) is rotatably connected with the shell (1), the clamping part (72) and the pressing part (73) are respectively arranged on two sides of the rotating shaft part (71), the clamping part (72) is provided with a first abutting surface (721), the thrust part (2) is provided with a second abutting surface (23), and the first abutting surface (721) can be selectively abutted with the second abutting surface (23); when the rotating shaft part (71) rotates along a first direction, the clamping part (72) is close to the accommodating cavity, the first abutting surface (721) abuts against the second abutting surface (23), and the firing elastic piece (3) is in the compression force accumulation state; when the rotating shaft part (71) rotates in the reverse direction of the first direction, the clamping part (72) is far away from the thrust piece (2), and the firing elastic piece (3) is in the firing state.

4. A vascular punch according to claim 3, wherein the firing member (7) comprises a return elastic portion, one end of which is connected to the click portion (73), and the other end of which is connected to the housing (1); when the reset elastic part is in a release state, the pressing part (73) is far away from the accommodating cavity; when the reset elastic part is in a compressed state, the pressing part (73) is close to the accommodating cavity.

5. The vascular punch according to claim 1, wherein the cutting blade (6) is arranged in a ring shape, the thrust piece (2) comprises a limiting portion (24), and the cutting blade (6) is sleeved on the limiting portion (24).

6. The vascular punch according to claim 5, wherein the cutting blade (6) is provided with a barb portion (63), one end of the barb portion (63) is connected with the inner wall of the cutter head (61), the other end of the barb portion (63) extends in the opposite direction of punching, and the barb portion (63) is inclined toward the axial direction of the cutting blade (6), and the barb portion (63) is configured to block vascular punching blanking from falling off from the cutter head (61).

7. The vascular punch according to claim 1, wherein the pushing member (2) is provided with a limit groove (25), the firing elastic member (3) is abutted with the pushing member (2), and the firing elastic member (3) is arranged in the limit groove (25).

8. The vascular punch according to claim 1, wherein the thrust piece (2) comprises a push handle (22), the push handle (22) is sleeved on the counter-pushing part (21), and the push handle (22) is provided with a non-slip protrusion.

9. The vascular punch according to claim 1, wherein two compression openings (14) are oppositely arranged, two thrust reversers (21) are arranged, and the thrust reversers (21) are arranged in one-to-one correspondence with the compression openings (14).

10. Vessel punch according to any of claims 1-9, wherein the housing (1) comprises an upper shell (11) and a lower shell (12), the upper shell (11) and the lower shell (12) being detachably connected, the upper shell (11) and the lower shell (12) enclosing the receiving cavity.