Medical anastomat

Abstract

The utility model discloses a medical anastomat, which is characterized in that an annular tool bit and a circular blade jointly perform rotary cutting and extrusion to punch a blood vessel wall; when the balloon body is subjected to internal liquid pressure, the balloon body becomes a single-side concave balloon body shape, and under the pressure of blood in the blood vessel, the concave peripheral elastic wall of the balloon body shape is tightly attached to the outer ring of the incision of the blood vessel wall for sealing.

Description

Technical Field

[0001] This utility model relates to the field of vascular blood sealing technology, and in particular to a medical anastomosis device. Background Technology

[0002] An increasing number of elderly patients with coronary artery disease require off-pump coronary artery bypass grafting (OPCB). However, the core technique of OPCB surgery is sealing the incision in the vessel wall and creating a bloodless anastomosis area. Currently, the commonly used sealing technique is an umbrella-shaped sealing method that covers the incision. However, this technique has poor reliability; in clinical practice, the umbrella may rupture, leading to hemostasis failure. The procedure is also cumbersome, and the existing instruments are too complex, making operation difficult and challenging for medical staff. High risk: The complex structure and numerous parts of the instruments increase the safety risks during surgery.

[0003] The information disclosed in the background section is only intended to enhance the understanding of the background of this utility model, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] In view of the shortcomings or defects of the existing technology, a medical anastomosis device is provided, which significantly improves the reliability, convenience and low risk of vascular anastomosis and blood sealing.

[0005] The purpose of this utility model is achieved through the following technical solutions.

[0006] A medical stapler includes,

[0007] Operating handle, which includes,

[0008] The annular cutter head assembly includes,

[0009] Energy storage spring,

[0010] The ring-shaped cutter head rotates under the action of a storage spring;

[0011] Circular blade assembly, comprising,

[0012] The inner rod of the blade is hollow and passes through the annular cutter head.

[0013] A circular blade, which is a hollow structure and connected to the inner rod of the blade, is concentrically arranged in the annular cutter head and extends from the front end;

[0014] A balloon assembly, which is integrated into an operating handle, the balloon assembly including a balloon body;

[0015] The combined rotary cutting and extrusion of the annular cutting head and the circular blade creates holes in the blood vessel wall;

[0016] When subjected to internal fluid pressure, the balloon body transforms into a unilateral concave shape. Under the pressure of the blood inside the blood vessel, the elastic wall of the concave periphery of the balloon body fits tightly against the outer ring of the incision in the blood vessel wall to create a seal.

[0017] Preferably, the balloon assembly further includes:

[0018] A delivery conduit, which is movably disposed within the inner rod and circular blade of the blade,

[0019] The balloon body can be detached from the tip of the delivery catheter.

[0020] A spiral conduit, connected at the rear end of the delivery conduit, extends into a linear conduit at both ends under the action of an axial external force.

[0021] A liquid storage chamber is connected in communication with the rear end of the spiral conduit.

[0022] A liquid push button is slidably connected to the liquid storage chamber.

[0023] Preferably, the annular cutter head assembly further includes,

[0024] The energy storage spring support frame has a hollow structure.

[0025] The energy storage spring rear end piece is located at the rear end of the energy storage spring support frame. The rear end of the energy storage spring rear end piece has a locking groove and a first radial hole.

[0026] The cutter head fixing component is a hollow structure coaxial with the energy storage spring support frame and is located at the front end of the energy storage spring support frame. The cutter head fixing component is provided with a second radial hole.

[0027] The energy storage spring is sleeved on the outer wall of the energy storage spring support frame, with the front end of the energy storage spring passing through the second radial hole and the rear end of the energy storage spring passing through the first radial hole to lock and store energy.

[0028] The annular cutter head is fixedly connected to the cutter head fixing member via a radial shaft pin and is located at its front end. The annular cutter head and the cutter head fixing member rotate under the action of a storage spring.

[0029] Preferably, the circular blade assembly also includes,

[0030] The inner rod of the blade passes through the energy storage spring support frame, the blade head fixing component, and the annular blade head.

[0031] An annular groove is recessed into the upper side of the inner rod of the blade.

[0032] A symmetrical slotted groove is provided on the upper side of the inner rod of the blade to engage with the radial shaft pin for forward locking.

[0033] A symmetrical locking point is provided on the side of the inner rod of the blade to cooperate with the locking groove for rear locking, so that the energy storage spring is in a stored state when locked in the front and rear positions.

[0034] The pull rod engages with the locking groove. When the pull rod is pulled rearward, the radial pin on the annular cutter head and the cutter head fixing component enters the annular groove, causing the front locking of the radial pin to fail. The storage spring, upon failure of the front locking, rotates to restore its original position, causing the annular cutter head and the cutter head fixing component to rotate and cut.

[0035] The rear end of the pull rod is connected to the pull rod, and the rear end of the pull rod is a hollow structure.

[0036] Preferably, the front end of the balloon body is provided with a damage-resistant tip.

[0037] Preferably, the spiral catheter is a flexible catheter.

[0038] Preferably, the circular blades are arranged concentrically at 3-4 mm from the outer end of the annular cutter head.

[0039] Preferably, the balloon body is made of an elastic material.

[0040] Preferably, when the spiral catheter is straightened, the balloon body detaches from the infusion catheter and remains in the blood vessel to provide a sealing effect.

[0041] Preferably, the medical stapler has an axisymmetric structure.

[0042] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0043] This invention replaces the hemostatic umbrella with a hemostatic balloon, eliminating the risk of hemostasis failure due to umbrella cord breakage and significantly improving reliability. It organically integrates the coronary knife, punch, and balloon into a single unit, allowing for seamless operation. The entire process of incision, punching, and balloon hemostasis can be completed with a single hand, greatly reducing the skill requirements and significantly improving convenience. By replacing the hemostatic umbrella with a balloon, the traction cord, spring support, and anchor components on the umbrella are eliminated, simplifying the manufacturing process and reducing the risk of parts detaching during use.

[0044] The description is merely an overview of the technical solution of this utility model. In order to make the technical means of this utility model clearer and more understandable, so that those skilled in the art can implement it according to the contents of the specification, and in order to make the described and other objects, features and advantages of this utility model more obvious and easy to understand, specific embodiments of this utility model are illustrated below. Attached Figure Description

[0045] Various other advantages and benefits of this invention will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention. Obviously, the drawings described below are merely some embodiments of this invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. Furthermore, the same reference numerals denote the same parts throughout the drawings.

[0046] In the attached diagram:

[0047] Figure 1 This is a schematic diagram of the structure of this utility model before assembly;

[0048] Figure 2 This is a schematic diagram of the assembled structure of this utility model;

[0049] Figure 3 This is a schematic diagram of the circular blade of this utility model being inserted into a blood vessel;

[0050] Figure 4 This is a schematic diagram of the structure of the balloon body of this utility model for inserting into a blood vessel;

[0051] Figure 5 This is a schematic diagram of the structure of the balloon body of this utility model expanding in a blood vessel;

[0052] Figure 6 This is a schematic diagram of the structure of the present invention for opening a blood vessel;

[0053] Figure 7 This is a schematic diagram of the structure of the balloon-shaped blood vessel sealing vessel of this utility model;

[0054] Figure 8 This is a three-dimensional schematic diagram of the present invention when it is not in operation;

[0055] Figure 9 This is a three-dimensional schematic diagram of the present invention in operation;

[0056] Figure 10 This is a structural diagram showing the balloon body of this utility model before and after pre-inflation.

[0057] Figure 11 This is a schematic diagram of the structure of the annular cutter head assembly of this utility model;

[0058] Figure 12 This is a schematic diagram of the energy storage spring of this utility model;

[0059] Figure 13 This is a schematic diagram of the circular blade assembly of this utility model;

[0060] Figure 14 This is a schematic diagram of the assembly structure of the annular cutter head assembly and the circular blade assembly of this utility model;

[0061] Figure 15 This is a schematic diagram showing the structure in which the locking groove and the slotted locking point on the side of the inner rod of the blade are pulled apart in the assembly structure of the annular cutter head assembly and the circular blade assembly of this utility model.

[0062] The present invention will be further explained below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0063] Specific embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While specific embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0064] It should be noted that certain terms are used in the specification and claims to refer to specific components. Those skilled in the art will understand that different terms may be used to refer to the same component. This specification and claims do not distinguish components based on differences in terminology, but rather on differences in function. The terms "comprising" or "including" used throughout the specification and claims are open-ended and should be interpreted as "comprising but not limited to." The following descriptions of the preferred embodiments of the present invention are for the purpose of implementing the general principles of the specification and are not intended to limit the scope of the present invention. The scope of protection of this invention shall be determined by the appended claims.

[0065] To facilitate understanding of the embodiments of this utility model, the following will provide further explanation and description with reference to the accompanying drawings and several specific embodiments. The accompanying drawings do not constitute a limitation on the embodiments of this utility model.

[0066] To better understand, such as Figures 1 to 15 As shown, a medical stapler includes,

[0067] Operating handle 2, which includes,

[0068] The annular cutter head 201 assembly includes,

[0069] 204 energy storage spring

[0070] The annular cutter head 201 rotates under the action of the storage spring 204;

[0071] The circular blade assembly 301 includes,

[0072] The inner rod 302 of the blade is a hollow structure and passes through the annular cutter head 201.

[0073] The circular blade 301 is a hollow structure and is connected to the inner rod 302 of the blade. The circular blade 301 is concentrically arranged in the annular cutter head 201 and extends from the front end.

[0074] Balloon assembly 1, which is built into operating handle 2, includes,

[0075] The delivery conduit 102 is movably disposed within the inner rod 302 and the circular blade 301 of the blade.

[0076] The balloon body 101A is detachable from the tip of the delivery catheter 102.

[0077] A spiral conduit 104 is connected to the rear end of the delivery conduit 102. Both ends of the spiral conduit 104 extend into a linear conduit under the action of an axial external force.

[0078] A liquid storage chamber 105 is connected in communication with the rear end of the spiral conduit 104.

[0079] The liquid push button 106 is slidably connected to the liquid storage chamber 105.

[0080] In a preferred embodiment of the medical stapler, the annular blade 201 assembly further includes,

[0081] The energy storage spring support frame 203 is a hollow structure.

[0082] The energy storage spring rear end piece 205 is located at the rear end of the energy storage spring support frame 203. The rear end of the energy storage spring rear end piece 205 has a locking groove and a first radial hole.

[0083] The cutter head fixing component 202 is a hollow structure coaxial with the energy storage spring support frame 203 and is located at the front end of the energy storage spring support frame 203. The cutter head fixing component 202 is provided with a second radial hole.

[0084] A storage spring 204 is sleeved on the outer wall of the storage spring support frame 203, with its front end penetrating the second radial hole and its rear end penetrating the first radial hole to lock and store force.

[0085] The annular cutter head 201 is fixedly connected to the cutter head fixing member 202 via a radial shaft pin and is located at its front end. The annular cutter head 201 and the cutter head fixing member 202 rotate under the action of the storage spring 204.

[0086] In a preferred embodiment of the medical stapler, the circular blade 301 assembly further includes,

[0087] The inner rod 302 of the blade passes through the energy storage spring support frame 203, the blade head fixing member 202, and the annular blade head 201.

[0088] An annular groove is recessed into the upper side of the inner rod 302 of the blade.

[0089] A symmetrical slotted groove is provided on the upper side of the inner rod 302 of the blade to engage with the radial shaft pin for front locking.

[0090] A symmetrical locking point is provided on the side of the inner rod 302 of the blade to cooperate with the locking groove for rear locking, so that the energy storage spring 204 is in a stored state when locked in the front and rear positions.

[0091] Pull rod 303 engages with the locking groove. When pull rod 303 is pulled rearward, the radial pin on the annular cutter head 201 and the cutter head fixing member 202 enters the annular groove, causing the front locking of the radial pin to fail. The storage spring 204 returns to its original rotation in the event of front locking failure, driving the annular cutter head 201 and the cutter head fixing member 202 to rotate and cut.

[0092] The rear end 304 of the pull rod is connected to the pull rod 303, and the rear end 304 of the pull rod is a hollow structure.

[0093] In a preferred embodiment of the medical stapler, the front end of the balloon body is provided with a damage-preventing tip 103.

[0094] In a preferred embodiment of the medical stapler, the spiral catheter 104 is a flexible catheter.

[0095] In a preferred embodiment of the medical stapler, the circular blade 301 is concentrically positioned 3-4 mm from the outer end of the annular blade head 201.

[0096] In a preferred embodiment of the medical stapler, the balloon body 101A is made of an elastomeric material and transforms into a balloon body shape 101B with a single-sided concave shape when subjected to internal liquid pressure. Under the pressure of blood inside the blood vessel, the elastic wall of the concave periphery of the balloon body fits tightly against the outer ring of the blood vessel wall incision to seal it.

[0097] In a preferred embodiment of the medical stapler, the annular blade 201 and the circular blade 301 work together to cut and compress, thereby creating a hole in the blood vessel wall.

[0098] In a preferred embodiment of the medical stapler, when the spiral catheter 104 is straightened, the balloon body detaches from the infusion catheter and remains in the blood vessel to provide a sealing function.

[0099] In a preferred embodiment of the medical stapler, the medical stapler has an axisymmetric structure.

[0100] In one embodiment, a medical stapler includes,

[0101] Operating handle 2, which includes,

[0102] The annular cutter head 201 assembly includes,

[0103] The energy storage spring support frame 203 is a hollow structure.

[0104] The energy storage spring rear end piece 205 is located at the rear end of the energy storage spring support frame 203. The rear end of the energy storage spring rear end piece 205 has a locking groove and a first radial hole.

[0105] The cutter head fixing component 202 is a hollow structure coaxial with the energy storage spring support frame 203 and is located at the front end of the energy storage spring support frame 203. The cutter head fixing component 202 is provided with a second radial hole.

[0106] A storage spring 204 is sleeved on the outer wall of the storage spring support frame 203, with its front end penetrating the second radial hole and its rear end penetrating the first radial hole to lock and store force.

[0107] An annular cutter head 201 is fixedly connected to the cutter head fixing member 202 via a radial shaft pin and is located at its front end. The annular cutter head 201 and the cutter head fixing member 202 rotate under the action of the storage spring 204.

[0108] The circular blade assembly 301 includes,

[0109] The inner rod 302 of the blade is a hollow structure and passes through the energy storage spring support frame 203, the blade head fixing component 202, and the annular blade head 201.

[0110] An annular groove is recessed into the upper side of the inner rod 302 of the blade.

[0111] A symmetrical slotted groove is provided on the upper side of the inner rod 302 of the blade to engage with the radial shaft pin for front locking.

[0112] A symmetrical locking point is provided on the side of the inner rod 302 of the blade to cooperate with the locking groove for rear locking, so that the energy storage spring 204 is in a stored state when locked in the front and rear positions.

[0113] The circular blade 301 is a hollow structure and is connected to the inner rod 302 of the blade. The circular blade 301 is concentrically arranged in the annular cutter head 201 and extends from the front end.

[0114] Pull rod 303 engages with the locking groove. When pull rod 303 is pulled rearward, the radial pin on the annular cutter head 201 and the cutter head fixing member 202 enters the annular groove, causing the front locking of the radial pin to fail. The storage spring 204 returns to its original rotation in the event of front locking failure, driving the annular cutter head 201 and the cutter head fixing member 202 to rotate and cut.

[0115] The rear end 304 of the pull rod is connected to the pull rod 303 and the rear end 304 of the pull rod is a hollow structure;

[0116] Balloon assembly 1, which is built into operating handle 2, includes,

[0117] The delivery conduit 102 is movably disposed within the inner rod 302 and the circular blade 301 of the blade.

[0118] The balloon body is detachable from the tip of the delivery catheter 102.

[0119] A spiral conduit 104 is connected to the rear end of the delivery conduit 102. Both ends of the spiral conduit 104 extend into a linear conduit under the action of an axial external force.

[0120] A liquid storage chamber 105 is connected to the rear end of the spiral conduit 104 and accommodated within the rear end 304 of the pull rod.

[0121] The push button 106 is slidably connected to the fluid reservoir 105. This medical stapler can complete vascular perforation and balloon occlusion with just a push-pull action.

[0122] In one embodiment, the medical stapler consists of a balloon assembly 1 and an operating handle 2, such as Figure 1As shown, the balloon assembly 1 consists of six parts: balloon body 101A, delivery catheter 102, anti-damage tip 103, spiral catheter 104, fluid reservoir 105, and push button 106. The spiral catheter 104 is a flexible catheter, and its two ends can be straightened under axial external force. The operating handle 2 consists of an annular cutter head 201, a cutter head fixing component 202, a power storage spring support frame 203, a power storage spring 204, a power storage spring rear end component 205, a handle housing 206, a circular blade 301, a blade inner rod 302, a pull rod 303, and a pull rod rear end component 304. The annular cutter head 201 is fixedly connected to the cutter head fixing member 202; the front and rear ends of the energy storage spring 204 are respectively connected to the cutter head fixing member 202 and the rear end member 205 of the energy storage spring, and are internally supported by the energy storage spring support frame 203. The annular cutter head 201 can rotate at high speed under the action of the energy storage spring 204; the balloon assembly 1 is built into the operating handle 2. The annular cutter head 201, the cutter head fixing member 202, the energy storage spring support frame 203, the circular blade 301, and the inner rod of the blade are all hollow structures. The inner rod of the blade is concentrically arranged inside the annular cutter head 201, and the circular blade 301 is concentrically arranged 3-4mm from the outer end of the annular cutter head 201. The balloon body 101A is arranged inside the inner rod of the blade 302; under the action of external force, the balloon body 101A can push out the circular blade 301, such as... Figure 2 As shown.

[0123] First, a small incision is made in the blood vessel wall using a circular blade 301. Then, the circular blade 301 is inserted into the blood vessel through the incision. Figure 3 As shown, by pushing the injection button 106, the delivery catheter 102 is activated, and the balloon body 101A is inserted into the inner side of the blood vessel, as... Figure 4 As shown, continue pushing the liquid injection button 106 to pre-inflate the balloon body 101A through the delivery catheter 102, transforming it into a balloon body shape 101B to seal and stop bleeding at the vascular incision. The balloon body 101A is made of elastomeric material and transforms into a balloon body shape 101B under a certain pressure from the internal liquid. The balloon body shape 101B has a single-sided concave shape. Under the pressure of the blood inside the blood vessel, the elastic wall of the concave circumference of the balloon body shape 101B fits tightly against the outer ring of the vascular incision to seal it. Figure 5 As shown, pull the lever 303 backward. At this time, the annular cutter head 201 rotates at high speed under the action of the storage spring 204. Under the joint rotary cutting and squeezing of the annular cutter head 201 and the circular blade 301, a hole is made in the blood vessel wall, as shown. Figure 6 As shown, the circular blade 301 is then withdrawn from the blood vessel, and the instrument is pulled outwards. At this time, the spiral catheter 104 will be straightened under external force, leaving only the balloon body 101B in the blood vessel to provide a seal. Figure 7 As shown.

[0124] In one embodiment, the annular cutter head assembly comprises an annular cutter head 201, a cutter head fixing member 202, a spring storage support frame 203, a spring storage 204, a spring storage rear end member 205, and a radial shaft pin 207. The annular cutter head 201 and the cutter head fixing member 202 are fixedly connected by the radial shaft pin 207. The front end 2041 of the spring storage 204 passes through the second radial hole of the cutter head fixing member 202, and the rear end 2042 of the spring storage 204 passes through the first radial hole of the spring storage rear end member 205 for connection and fixation. The spring storage 204 is internally supported by the spring storage support frame 203. The rear end of the spring storage rear end member 205 has a locking groove 208. The annular cutter head 201 and the cutter head fixing member 202 can rotate at high speed under the action of the spring storage 204. The front and rear ends of the spring storage 204 store force when locked. When the locking at one end fails, it will recover and enter a high-speed rotation state.

[0125] In one embodiment, the circular blade assembly comprises a circular blade 301, an inner blade rod 302, a pull rod 303, and a pull rod rear end 304, which are tightly fitted together. The inner blade rod 302 has a symmetrical slot 3021 and an annular groove 3022 on its upper side, and symmetrical slot points 305 on its side. In the initial state, the annular cutter head assembly and the circular blade assembly are assembled as follows... Figure 14 As shown: The radial shaft pin 207 on the annular cutter head is engaged in the slot 3021 on the side of the inner rod 302 of the blade for engagement, and the slot 305 on the side of the inner rod 302 of the blade is engaged in the slot 208 at the rear end of the rear end piece 205 of the storage spring for engagement. At this time, the storage spring is in a storage state with the front and rear engaged. In the working state, the annular cutter head assembly and the circular blade assembly are assembled as follows. Figure 14 As shown, when the pull rod 303 is pulled to the rear end, the radial shaft pin 207 on the annular cutter head 201 connected to the front end of the storage spring and the cutter head fixing member 202 enters the annular groove 3022 of the inner rod of the blade, causing the radial shaft pin 207 to fail to lock. The locking groove 208 on the rear end member 205 of the storage spring connected to the rear end of the storage spring and the slotted locking point 305 on the side of the inner rod of the blade are still normally locked. At this time, the storage spring rotates at high speed to restore its position when one end fails to lock, driving the annular cutter head 201 and the cutter head fixing member 202 to perform high-speed rotational cutting.

[0126] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0127] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A medical stapler, characterized in that, It includes, Operating handle, which includes, The annular cutter head assembly includes, Energy storage spring, The ring-shaped cutter head rotates under the action of a storage spring; Circular blade assembly, comprising, The inner rod of the blade is hollow and passes through the annular cutter head. A circular blade, which is a hollow structure and connected to the inner rod of the blade, is concentrically arranged in the annular cutter head and extends from the front end; A balloon assembly, which is integrated into an operating handle, the balloon assembly including a balloon body; The combined rotary cutting and extrusion of the annular cutting head and the circular blade creates holes in the blood vessel wall; When subjected to internal fluid pressure, the balloon body transforms into a unilateral concave shape. Under the pressure of the blood inside the blood vessel, the elastic wall of the concave periphery of the balloon body fits tightly against the outer ring of the incision in the blood vessel wall to create a seal.

2. The medical stapler as described in claim 1, characterized in that: The balloon assembly also includes: A delivery conduit, which is movably disposed within the inner rod and circular blade of the blade, The balloon body can be detached from the tip of the delivery catheter. A spiral conduit, connected at the rear end of the delivery conduit, extends into a linear conduit at both ends under the action of an axial external force. A liquid storage chamber is connected in communication with the rear end of the spiral conduit. A liquid push button is slidably connected to the liquid storage chamber.

3. The medical stapler as described in claim 1, characterized in that, The annular cutter head assembly also includes, The energy storage spring support frame has a hollow structure. The energy storage spring rear end piece is located at the rear end of the energy storage spring support frame. The rear end of the energy storage spring rear end piece has a locking groove and a first radial hole. The cutter head fixing component is a hollow structure coaxial with the energy storage spring support frame and is located at the front end of the energy storage spring support frame. The cutter head fixing component is provided with a second radial hole. The energy storage spring is sleeved on the outer wall of the energy storage spring support frame, with the front end of the energy storage spring passing through the second radial hole and the rear end of the energy storage spring passing through the first radial hole to lock and store energy. The annular cutter head is fixedly connected to the cutter head fixing member via a radial shaft pin and is located at its front end. The annular cutter head and the cutter head fixing member rotate under the action of a storage spring.

4. The medical stapler as described in claim 3, characterized in that, The circular blade assembly also includes, The inner rod of the blade passes through the energy storage spring support frame, the blade head fixing component, and the annular blade head. An annular groove is recessed into the upper side of the inner rod of the blade. A symmetrical slotted groove is provided on the upper side of the inner rod of the blade to engage with the radial shaft pin for forward locking. A symmetrical locking point is provided on the side of the inner rod of the blade to cooperate with the locking groove for rear locking, so that the energy storage spring is in a stored state when locked in the front and rear positions. The pull rod engages with the locking groove. When the pull rod is pulled rearward, the radial pin on the annular cutter head and the cutter head fixing component enters the annular groove, causing the front locking of the radial pin to fail. The storage spring, upon failure of the front locking, rotates to restore its original position, causing the annular cutter head and the cutter head fixing component to rotate and cut. The rear end of the pull rod is connected to the pull rod, and the rear end of the pull rod is a hollow structure.

5. The medical stapler as described in claim 1, characterized in that, The front end of the balloon is equipped with a damage-resistant tip.

6. The medical stapler as described in claim 2, characterized in that, The spiral catheter is a flexible catheter.

7. The medical stapler as described in claim 1, characterized in that, The circular blades are concentrically positioned 3-4 mm from the outer end of the annular cutter head.

8. The medical stapler as described in claim 1, characterized in that, The balloon is made of elastic material.

9. The medical stapler as described in claim 2, characterized in that, When the spiral catheter is straightened, the balloon body detaches from the infusion catheter and remains in the blood vessel to provide a seal.

10. The medical stapler as described in claim 1, characterized in that, The medical stapler has an axisymmetric structure.

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