A disposable hand-held electric stapler with a built-in power supply

Abstract

The present invention discloses a disposable handheld electric stapler with a built-in power source, which relates to the field of electric staplers and includes an operating end and an execution end. The execution end includes a staple cartridge and an anvil; a number of staples and corresponding staple exit holes are provided in the staple cartridge; a firing assembly is provided in the staple cartridge, and the firing assembly can fire the staples so that the staples are pushed out of the staple cartridge through the staple exit holes. A number of blocking assemblies corresponding to the staple exit holes are also provided on the staple cartridge. The blocking assembly includes a moving plate and a blocking plate; when there is no tissue clamped between the moving plate and the anvil, the blocking plate blocks the staple exit holes, and a bending groove is formed on the blocking plate. When the staples are fired, they can enter the bending groove and be bent by the bending groove. When there is tissue clamped between the moving plate and the anvil. When no tissue is clamped between the staple cartridge and the anvil, the fired staples will not break away from the staple cartridge, and the staples will not fall into the cavity, which is safer and eliminates the need to clean up the dropped staples, making it more convenient.

Description

Technical Field

[0001] The present invention relates to the field of electric staplers, and particularly to a disposable hand-held electric stapler with a built-in power source. Background Art

[0002] Surgical operations usually face the problem of closing incisions (wounds). Initially, all surgical operations used suture threads for stitching, but suture thread stitching has some disadvantages, such as long stitching time and some patients having rejection reactions to suture threads. Since the advent of surgical staplers in 1908, surgical staplers have gradually become a mechanical stitching method, replacing the manual anastomosis operation with needles and threads, and are widely used clinically in departments such as obstetrics and gynecology, thoracic surgery, general surgery, ophthalmology, and urology.

[0003] A stapler is a device used in medicine to replace manual suturing. Its main working principle is to use titanium staples to sever or anastomose tissues, similar to a stapler. Generally, it is divided into disposable or reusable staplers. Due to the development of modern technology and the improvement of manufacturing techniques, the staplers used clinically are of reliable quality, convenient to use, tight, and of appropriate tightness. Especially, their advantages such as fast stitching, simple operation, and few side effects and surgical complications have also enabled tumor surgeries that could not be resected in the past to remove the lesions. To facilitate the operation of the stapler, most staplers are provided with a handle for easy holding, and a built-in power source is provided inside the stapler to facilitate the movement of the stapler, which is relatively common and effective in the prior art.

[0004] The most basic components of a stapler are the body and the components; the body is composed of an instrument rod, a grip, a safety device, an angle rotation device, a staple remover button, and a return button; the components are composed of a staple cartridge, an anvil, and a blade. During anastomosis, the staple cartridge and the anvil clamp the tissue, push the blade to move and fire the anastomosis staples in the staple cartridge. While stapling, the blade cuts the tissue from the middle, and 3 rows of sutures on each side complete functions such as stitching and hemostasis, achieving the purpose of cutting and stitching. A built-in power source is provided inside the body, which can facilitate hand-held use.

[0005] Chinese Patent Publication No. CN102440813A discloses a laparoscopic surgical cutting stapler with a chain joint, which is composed of a chain joint. The two ends of the chain plate of the chain joint have teeth, and the teeth of the adjacent chain plates in the same row mesh with each other. The operating mechanism transmits the rotation angle of the chain plate at the nearest end of the chain joint to the execution head step by step through the meshing of the teeth of the adjacent chain plates in the same row, so that a rotation angle of about 90° of the execution head can be obtained with a relatively small transmission of the operating mechanism, thereby achieving precise positioning after the rotation of the chain joint and facilitating the precise alignment of the execution head with the part to be cut and anastomosed, and can also achieve the technical effect of significantly increasing the curvature radius of the bending of the chain joint.

[0006] Chinese Patent Publication No. CN101999916B discloses a laparoscopic surgical stapler with an elastic collar, which includes a stapler body, an actuator head, an extension tube connecting the stapler body and the actuator head, and an operating mechanism for controlling the movement of the actuator head; the actuator head is composed of an actuator frame, a slide rod, a staple cartridge and an anvil, the slide rod, the staple cartridge and the anvil are installed on the actuator frame, and the anvil can rotate relative to the staple cartridge; an elastic collar is wrapped around the outer periphery of the proximal end of the actuator frame, and the edge of the distal end of the elastic collar is closely attached to the edge of the proximal end of the anvil; when the anvil rotates to an open state relative to the staple cartridge, the elastic collar undergoes elastic deformation under the pressure of the anvil, and the edge of the distal end of the elastic collar remains closely attached to the edge of the proximal end of the anvil; when the anvil rotates to a closed state relative to the staple cartridge, the edge of the distal end of the elastic collar returns to the state of being closely attached to the edge of the proximal end of the anvil, which can achieve the technical effect of reducing the processing and assembly difficulty of each part in the actuator head and the product cost. At the same time, it is also more convenient to use.

[0007] The above patent and the prior art also have the following defects:

[0008] When the anvil of a linear stapler and the staple cartridge clamp tissue, the end portions of the anvil and the staple cartridge clamp the tissue, and the end of the anvil and the staple cartridge away from the end portion may be in a vacant state, that is, no tissue is located at the end of the anvil and the staple cartridge away from the end portion. The staple cartridge fires the staple in sequence from the end away from the end portion to the end portion. The staples that do not correspond to the tissue do not participate in tissue anastomosis after being fired. When some intracavitary anastomoses are performed, the fired staples will fall into the cavity, causing danger to the human body and requiring manual cleaning, which increases the operation steps and is rather troublesome. Therefore, the present application provides a disposable hand-held electric stapler with a built-in power source to meet the requirements. Summary of the Invention

[0009] The purpose of the present application is to provide a disposable hand-held electric stapler with a built-in power source, which can prevent the staples from detaching from the staple cartridge and falling into the cavity when no tissue is clamped between the staple cartridge and the anvil, making it safer and eliminating the need to clean the fallen staples, which is more convenient.

[0010] To achieve the above purpose, the present application provides the following technical solution: A disposable hand-held electric stapler with a built-in power source, which includes an operating end and an actuator end, and the actuator end includes a staple cartridge and an anvil; a plurality of staples and corresponding staple exit holes are provided in the staple cartridge; a firing assembly is provided in the staple cartridge, and the firing assembly can fire the staples so that the staples are pushed out of the staple cartridge through the staple exit holes.

[0011] The nail magazine is also provided with a plurality of blocking components corresponding to the nail holes, and the blocking components include a movable plate and a blocking plate; when no tissue is clamped between the movable plate and the nail support, the blocking plate blocks the nail hole, and a bending groove is provided on the blocking plate, and the staples can enter the bending groove and be bent by the bending groove when being fired; when tissue is clamped between the movable plate and the nail support, the movement of the movable plate can drive the blocking plate to move, so that the blocking plate releases the blocking of the nail hole, so that when the staples are fired, they can leave the nail magazine through the nail hole to staple the tissue.

[0012] Preferably, a linkage rod is hinged between the movable plate and the blocking plate. When the movable plate moves toward the blocking plate, the movable plate can drive the blocking plate to move in a direction parallel to the nail hole through the linkage rod, so that the blocking plate releases the blocking of the nail hole.

[0013] Preferably, a limiting assembly is provided on the movable plate, and the limiting assembly includes a sliding rod and a force storage member. The sliding rod limits the movable plate so that the movable plate can only move in a direction perpendicular to the nail hole. When tissue is clamped between the movable plate and the nail support, the movement of the movable plate can cause the force storage member to store force. When the movable plate and the nail support release the clamping of the tissue, the force storage member resets the movable plate.

[0014] Preferably, a sliding assembly is provided on the blocking plate, and the sliding assembly includes a support plate, a sliding groove and a sliding block, the sliding groove is opened on the support plate, the sliding block is fixedly mounted on the blocking plate, and the sliding block is slidably fitted in the sliding groove.

[0015] Preferably, the firing assembly includes a firing member and a plurality of pushing blocks, wherein the plurality of pushing blocks are arranged in the nail magazine, and the plurality of staples are respectively arranged on the corresponding pushing blocks. When the firing member moves in the nail magazine, the corresponding pushing blocks can push the corresponding staples out of the staple holes in a moving order.

[0016] Preferably, support plates are fixedly installed at the two side positions corresponding to the push block in the nail magazine, and the push block is slidably fitted on the support plates. The support plates limit the push block to move only in a direction perpendicular to the nail hole.

[0017] Preferably, cutting holes are provided on the opposite sides of the nail magazine and the nail support, and a cutting knife is fixedly installed on one end of the firing member. The cutting knife is arranged through the cutting hole, and when the firing member drives the cutting knife to move, the tissue clamped between the nail magazine and the nail support can be cut.

[0018] Preferably, the firing member includes a moving block and a plurality of firing blocks. The moving block is slidably fitted in the staple cartridge. The plurality of firing blocks are fixedly installed at the position of the moving block corresponding to the pushing block. Both the moving block and the firing blocks are trapezoidally arranged.

[0019] Preferably, a staple abutting groove is formed in the staple abutting seat. The bottom of the staple abutting groove is arc-shaped. The anastomosis staple is U-shaped. When the firing assembly fires the anastomosis staple and makes its end move into the staple abutting groove, the two ends of the anastomosis staple are bent under the limitation of the staple abutting groove.

[0020] Preferably, a placement groove is formed in the pushing block. The part of the anastomosis staple away from the end is arranged in the placement groove.

[0021] In summary, the technical effects and advantages of the present invention are as follows:

[0022] 1. In the present invention, the nail exit hole is blocked by the blocking plate. When tissue is clamped between the moving plate and the staple abutting seat, the moving plate can drive the blocking plate to move, so that the blocking plate no longer blocks the nail exit hole. The anastomosis staple is fired and detached from the nail exit hole to anastomose the tissue. When no tissue is clamped between the moving plate and the staple abutting seat, the blocking plate keeps blocking the nail exit hole. The anastomosis staple is fired and abuts against the blocking plate at the nail exit hole, and the anastomosis staple is bent through the bending groove. When no tissue is clamped between the staple cartridge and the staple abutting seat, the anastomosis staple will not be detached from the staple cartridge when fired, and the anastomosis staple will not fall into the cavity, which is safer. It saves the trouble of cleaning the dropped anastomosis staples and is more convenient;

[0023] 2. In the present invention, by arranging multiple groups of blocking components and corresponding to the anastomosis staples, when the anastomosis staples in the staple cartridge do not participate in tissue anastomosis, the corresponding blocking components prevent the anastomosis staples from detaching from the staple cartridge, and the blocking effect on the anastomosis staples that do not participate in tissue anastomosis is good, with higher accuracy. And when the anastomosis staples in the staple cartridge participate in tissue anastomosis, the blocking plate can be moved so that the blocking plate no longer blocks the corresponding nail exit hole, enabling the corresponding anastomosis staples to be fired in time to participate in tissue anastomosis. At the same time, by blocking the nail exit hole with the blocking component, it can prevent the anastomosis staples in the staple cartridge from accidentally falling off the staple cartridge when not fired;

[0024] 3. In the present invention, when the firing member moves in the staple cartridge to fire the anastomosis staple to anastomose the tissue, the firing member synchronously drives the cutting knife to move, so that the cutting knife moves in the cutting hole, cuts the tissue clamped between the staple cartridge and the staple abutting seat, and synchronously fires the anastomosis staple to anastomose the cut tissue, enabling synchronous cutting and anastomosis of the tissue, with less bleeding and better anastomosis effect;

[0025] 4. In the present invention, the moving block can drive the firing block to move, and the trapezoidal arrangement of the moving block and the firing block can squeeze the pushing block out of the staple magazine through the oblique edge during the movement, thereby pushing the staples out of the staple magazine, and can fire and push the staples in sequence to make the staples leave the staple magazine, so that the staples can anastomose the tissues or be blocked by the blocking device, which has a good firing effect on the staples and is not prone to failure to fire, thereby ensuring the anastomosis effect of the staples. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 It is a structural schematic diagram of the execution end in the present invention;

[0028] Figure 2 It is a structural schematic diagram of the present invention;

[0029] Figure 3 It is a structural schematic diagram of the present invention;

[0030] Figure 4 It is a structural schematic diagram of the execution end in the present invention;

[0031] Figure 5 It is a structural schematic diagram of the execution end in the present invention;

[0032] Figure 6 Schematic diagram of the structure of the nail magazine in the present invention;

[0033] Figure 7 For the present invention Figure 6 A magnified view of part A;

[0034] Figure 8 Schematic diagram of the structure of the nail magazine in the present invention;

[0035] Figure 9 For the present invention Figure 8 A magnified view of part B;

[0036] Figure 10 It is a partial cutaway schematic diagram of the present invention including a firing assembly and a blocking assembly;

[0037] Figure 11 For the present invention Figure 10 Enlarged view of part C;

[0038] Figure 12 It is a structural schematic diagram of the firing assembly in the present invention;

[0039] Figure 13 This is a schematic structural view of the blocking component in the present invention;

[0040] Figure 14 This is a schematic structural view of the blocking component in the present invention;

[0041] Figure 15 This is a schematic structural view of the pushing block and the anastomosis nail in the present invention;

[0042] Figure 16 This is a schematic structural view of the blocking component in the present invention.

[0043] In the figure: 1. Operating end; 2. Execution end; 21. Staple cartridge; 211. Anastomosis nail; 212. Nail outlet hole; 22. Anvil; 221. Anvil groove; 3. Firing component; 31. Firing part; 311. Moving block; 312. Firing block; 32. Pushing block; 321. Placing groove; 4. Blocking component; 41. Moving plate; 42. Blocking plate; 43. Bending groove; 44. Linking rod; 5. Limiting component; 51. Slide bar; 52. Energy storage part; 6. Sliding component; 61. Resisting plate; 62. Sliding groove; 63. Sliding block; 7. Support plate; 8. Cutting hole; 9. Cutting knife. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0045] Embodiment: Refer to Figure 1 , Figure 9 and Figure 16 , a disposable hand-held electric stapler with a built-in power source shown, which includes an operating end 1 and an execution end 2. The execution end 2 includes a staple cartridge 21 and an anvil 22; a plurality of anastomosis nails 211 and nail outlet holes 212 corresponding to the anastomosis nails 211 are arranged in the staple cartridge 21; a firing component 3 is arranged in the staple cartridge 21, and the firing component 3 can fire the anastomosis nails 211 so that the anastomosis nails 211 are pushed out of the staple cartridge 21 through the nail outlet holes 212;

[0046] The nail magazine 21 is also provided with a plurality of blocking components 4 corresponding to the nail holes 212, and the blocking components 4 include a movable plate 41 and a blocking plate 42; when no tissue is clamped between the movable plate 41 and the nail support 22, the blocking plate 42 blocks the nail holes 212, and a bending groove 43 is provided on the blocking plate 42, and the staples 211 can enter the bending groove 43 and be bent by the bending groove 43 when being fired. When tissue is clamped between the movable plate 41 and the nail support 22, the movement of the movable plate 41 can drive the blocking plate 42 to move, so that the blocking plate 42 releases the blocking of the nail holes 212, so that when the staples 211 are fired, they can be separated from the nail magazine 21 through the nail holes 212 to staple the tissue.

[0047] Working principle: The staple cartridge 21 and the staple anvil 22 clamp the tissue to be anastomosed. When the tissue is clamped between the movable plate 41 and the staple anvil 22, the tissue abuts against the movable plate 41 because the staple cartridge 21 and the staple anvil 22 need to clamp the tissue, and the movable plate 41 is pressed down toward the staple cartridge 21. The movable plate 41 moves to drive the blocking plate 42 to move, and the blocking plate 42 moves in a direction parallel to the staple hole 212, and the blocking plate 42 no longer blocks the staple hole 212. The firing assembly 3 fires the staple 211 to move it, and the staple 211 escapes from the staple magazine 21 through the staple hole 212 to staple the tissue. When no tissue is clamped between the movable plate 41 and the staple support 22, the blocking plate 42 keeps blocking the staple hole 212. When the firing assembly 3 fires the staple 211, the staple 211 abuts against the blocking plate 42 and enters the bending groove 43, so that the staple 211 is bent and does not escape from the staple magazine 21.

[0048] The blocking plate 42 blocks the nail hole 212. When tissue is clamped between the movable plate 41 and the nail support 22, the movable plate 41 can drive the blocking plate 42 to move so that the blocking plate 42 no longer blocks the nail hole 212. The staples 211 are fired and separated from the nail magazine 21 to staple the tissue. When no tissue is clamped between the movable plate 41 and the nail support 22, the blocking plate 42 keeps blocking the nail hole 212. The staples 211 are fired and abut against the blocking plate 42 from the nail hole 212, and the staples 211 are bent through the bending groove 43. When no tissue is clamped between the staple magazine 21 and the nail support 22, the staples 211 will not separate from the staple magazine 21 when fired, and the staples 211 will not fall into the cavity, which is safer and saves the need to clean up the fallen staples 211, which is more convenient.

[0049] By arranging multiple groups of blocking components 4 corresponding to the anastomosis nails 211, when the anastomosis nails 211 in the staple cartridge 21 do not participate in tissue anastomosis, the corresponding blocking components 4 prevent the anastomosis nails 211 from detaching from the staple cartridge 21, with a good blocking effect on the anastomosis nails 211 that do not participate in tissue anastomosis, higher accuracy, and when the anastomosis nails 211 in the staple cartridge 21 participate in tissue anastomosis, the blocking plate 42 can be moved so that the blocking plate 42 no longer blocks the corresponding nail exit holes 212, enabling the corresponding anastomosis nails 211 to be fired in time to participate in tissue anastomosis.

[0050] Wherein, a transmission rod is connected between the operating end 1 and the execution end 2, the staple cartridge 21 is fixedly installed on the transmission rod, the anvil 22 is movably connected to the transmission rod, and the operating end 1 can adjust the angle between the anvil 22 and the staple cartridge 21. This is the prior art and will not be described in detail again; it can conveniently hold tissues between the staple cartridge 21 and the anvil 22.

[0051] Wherein, the operating end 1 is the prior art and will not be described in detail herein.

[0052] Wherein, through holes are formed in the moving plate 41 corresponding to the nail exit holes 212, and the through holes are matched with the nail exit holes 212. When the firing component 3 fires the anastomosis nails 211 through the nail exit holes 212 to detach from the staple cartridge 21, the anastomosis nails 211 can pass through the through holes, and the moving plate 41 will not hinder the anastomosis of the anastomosis nails 211 to tissues.

[0053] Further, referring to Figure 9 and Figure 16 , a linkage rod 44 is hinged between the moving plate 41 and the blocking plate 42. When the moving plate 41 moves towards the blocking plate 42, the moving plate 41 can drive the blocking plate 42 to move along the direction parallel to the nail exit holes 212 through the linkage rod 44, so that the blocking plate 42 releases the block on the nail exit holes 212.

[0054] One end of the linkage rod 44 is hinged to the moving plate 41, the other end of the linkage rod 44 is hinged to the blocking plate 42, the linkage rod 44 is inclined. When the moving plate 41 moves towards the blocking plate 42, the moving plate 41 drives one end of the linkage rod 44 to move, and the linkage rod 44 drives the blocking plate 42 to move, so that the blocking plate 42 no longer blocks the nail exit holes 212.

[0055] Wherein, the blocking plate 42 cannot move towards the staple cartridge 21. When the moving plate 41 moves towards the blocking plate 42, the moving plate 41 drives the linkage rod 44 to move, and the linkage rod 44 can drive the blocking plate 42 to move along the direction parallel to the nail exit holes 212.

[0056] Among them, a linkage groove is formed in the blocking plate 42 corresponding to the position of the linkage rod 44. When the moving plate 41 moves to abut against the blocking plate 42, the linkage rod 44 is located in the linkage groove, which can ensure that when tissue is clamped between the moving plate 41 and the nail abutment 22, the moving plate 41 can abut against the blocking plate 42, making the moving plate 41 more stable and having a good clamping effect on the tissue.

[0057] Further, referring to Figure 9 and Figure 16 , a limiting component 5 is arranged on the moving plate 41. The limiting component 5 includes a sliding rod 51 and a power storage member 52. The sliding rod 51 limits the moving plate 41 so that the moving plate 41 can only move along the direction perpendicular to the nail outlet hole 212. When tissue is clamped between the moving plate 41 and the nail abutment 22, the movement of the moving plate 41 can cause the power storage member 52 to store power. When the clamping of the tissue between the moving plate 41 and the nail abutment 22 is released, the power storage member 52 causes the moving plate 41 to reset.

[0058] A sliding hole is formed in the nail cartridge 21 corresponding to the position of the sliding rod 51. The sliding rod 51 is slidably fitted in the sliding hole. The moving plate 41 is fixedly installed in the sliding rod 51. When the moving plate 41 moves, it drives the sliding rod 51 to slide in the sliding hole. The cooperation between the sliding rod 51 and the sliding hole limits the moving plate 41 to only move along the direction of the sliding hole, and the sliding hole is in the same direction as the opening direction of the nail outlet hole 212, so that the moving plate 41 can only move along the direction perpendicular to the nail outlet hole 212. When tissue is clamped between the moving plate 41 and the nail abutment 22, the moving plate 41 moves towards the nail cartridge 21 under the clamping pressure, and the movement of the moving plate 41 drives the power storage member 52 to store power. When the clamping force of the moving plate 41 on the tissue is removed, the power storage member 52 can drive the moving plate 41 to reset.

[0059] Among them, the power storage member 52 is a spring in the prior art.

[0060] Among them, the power storage member 52 is sleeved on the sliding rod 51, making the power storage member 52 not easily deformed laterally.

[0061] Further, referring to Figure 9 and Figure 14 , a sliding component 6 is arranged on the blocking plate 42. The sliding component 6 includes a resisting plate 61, a sliding groove 62 and a sliding block 63. The sliding groove 62 is formed in the resisting plate 61. The sliding block 63 is fixedly installed on the blocking plate 42. The sliding block 63 is slidably fitted in the sliding groove 62.

[0062] The backing plate 61 is fixedly installed on the staple cartridge 21. When the blocking plate 42 moves, it drives the sliding block 63 to move. The sliding block 63 moves within the sliding groove 62. The backing plate 61 limits the position of the blocking plate 42 through the sliding groove 62, making the blocking plate 42 more stable.

[0063] Wherein, the backing plate 61 is sleeved on the sliding rod 51, enabling the backing plate 61 to be in sliding fit with the sliding rod 51, making the backing plate 61 more stable.

[0064] Further, referring to Figure 11 、 Figure 12 and Figure 15 the firing assembly 3 includes a firing member 31 and a plurality of pushing blocks 32. The plurality of pushing blocks 32 are arranged in the staple cartridge 21. The plurality of anastomosis staples 211 are respectively arranged on the corresponding pushing blocks 32. When the firing member 31 moves in the staple cartridge 21, it can, in the order of movement, cause the corresponding pushing blocks 32 to push the corresponding anastomosis staples 211 out of the staple exit hole 212.

[0065] The firing member 31 moves in the staple cartridge 21 until it abuts against the pushing block 32. The pushing block 32 moves under the extrusion of the firing member 31, causing the pushing block 32 to drive the anastomosis staple 211 to move and push the anastomosis staple 211 out of the staple cartridge 21 through the staple exit hole 212.

[0066] Wherein, a push rod is fixedly installed on the firing member 31. The push rod is connected to the operating end 1. The operating end 1 can drive the push rod to move along the direction of the transmission rod, causing the push rod to drive the firing member 31 to move in the staple cartridge 21. The operation of the operating end 1 to drive the push rod is prior art and will not be described in detail here.

[0067] Further, referring to Figure 11 and Figure 15 on both sides of the corresponding pushing block 32 in the staple cartridge 21, support plates 7 are fixedly installed. The pushing block 32 is in sliding fit with the support plates 7. The support plates 7 limit the pushing block 32 to only move in a direction perpendicular to the staple exit hole 212.

[0068] Both sides of the pushing block 32 are fixedly connected with sliding strips. On one side of the support plate 7 corresponding to the sliding strips, sliding grooves are provided. The sliding strips are in sliding fit with the sliding grooves. The support plate 7 is fixedly installed in the staple cartridge 21. The support plate 7 limits the pushing block 32 through the sliding strips and the sliding grooves, enabling the pushing block 32 to only move in a direction perpendicular to the staple exit hole 212. At the same time, it makes the pushing block 32 more stable during movement and prevents it from tilting when being extruded by the firing member 31.

[0069] Further, referring to Figure 7 and Figure 9, cutting holes 8 are formed on one side of the staple cartridge 21 and the anvil 22 facing each other. A cutting knife 9 is fixedly installed at one end of the firing member 31. The cutting knife 9 is arranged through the cutting hole 8. When the firing member 31 drives the cutting knife 9 to move, the tissue clamped between the staple cartridge 21 and the anvil 22 can be cut open.

[0070] When the firing member 31 moves in the staple cartridge 21 to fire the staple 211 to anastomose the tissue, the firing member 31 synchronously drives the cutting knife 9 to move, so that the cutting knife 9 moves in the cutting hole 8, cuts open the tissue clamped between the staple cartridge 21 and the anvil 22, and synchronously fires the staple 211 to anastomose the cut tissue.

[0071] Wherein, the staples 211 are arranged on both sides of the cutting hole 8, so that after the cutting knife 9 cuts open the tissue, the staples 211 anastomose both sides of the cut tissue, and the anastomosis effect is good.

[0072] Further, referring to Figure 11 and Figure 12 , the firing member 31 includes a moving block 311 and a plurality of firing blocks 312. The moving block 311 is slidably fitted in the staple cartridge 21. The plurality of firing blocks 312 are fixedly installed at the position of the moving block 311 corresponding to the pushing block 32. Both the moving block 311 and the firing blocks 312 are trapezoidal.

[0073] The moving block 311 will not abut against the support plate 7 during the moving process. The firing blocks 312 are fixedly installed on the moving block 311. The moving block 311 can drive the firing blocks 312 to move. The trapezoidal settings of the moving block 311 and the firing blocks 312 can push the pushing block 32 out of the staple cartridge 21 by the hypotenuse during the moving process, so as to push the staple 211 out of the staple cartridge 21, and can fire and push the staple 211 in sequence, so that the staple 211 is separated from the staple cartridge 21, so that the staple 211 can anastomose the tissue or be blocked by the blocking device. The firing effect on the staple 211 is good, and it is not easy to cause the situation of non-firing, ensuring the anastomosis effect of the staple 211.

[0074] Wherein, the contact between the firing block 312 and the pushing block 32 is the start of firing the staple 211, and the separation of the firing block 312 from the pushing block 32 during the movement is the end of firing the staple 211.

[0075] Wherein, the pushing block 32 is trapezoidal, so that the firing block 312 can easily push the pushing block 32 out of the staple cartridge 21 when abutting against the pushing block 32.

[0076] Further, referring to Figure 5, a staple groove 221 is formed on the staple base 22, the bottom of the staple groove 221 is arc-shaped, the staple 211 is U-shaped. When the firing assembly 3 fires the staple 211 to move its end into the staple groove 221, the two ends of the staple 211 are bent under the limitation of the staple groove 221.

[0077] When tissue is clamped between the moving plate 41 and the staple base 22, the staple 211 is fired through the tissue. The two side ends of the staple 211 enter the staple groove 221. The end of the staple 211 is bent under the limitation of the arc-shaped bottom of the staple groove 221. Finally, the end passes through the tissue and bends on the other side of the tissue, so that part of the tissue is clamped by the staple 211. By firing multiple staples 211 in sequence, the tissue is anastomosed.

[0078] Further, referring to Figure 15 , a placement groove 321 is formed on the pushing block 32, and the part of the staple 211 away from the end is arranged in the placement groove 321.

[0079] When the pushing block 32 pushes the staple 211 to move, the staple 211 is not easy to tilt, so that the staple 211 can accurately enter the bending groove 43 or the staple groove 221 to be bent, and the staple 211 is more stable.

[0080] Further, the staple hole 212 and the staple 211 cooperate with each other. When the staple 211 is not fired, the staple 211 is arranged in the staple hole 212, and the staple hole 212 restricts the staple 211 from tilting, so that the staple 211 will not tilt when it is in the staple hole 212 and when it moves in the staple hole 212.

[0081] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A disposable hand-held electric stapler with a built-in power source, comprising an operating end (1) and an execution end (2), characterized in that: The execution end (2) comprises a staple cartridge (21) and a staple anvil (22); a plurality of staples (211) and staple outlet holes (212) corresponding to the staples (211) are arranged in the staple cartridge (21); a firing assembly (3) is arranged in the staple cartridge (21), and the firing assembly (3) is capable of firing the staples (211) so that the staples (211) are pushed out of the staple cartridge (21) through the staple outlet holes (212); The staple cartridge (21) is also provided with a plurality of blocking components (4) corresponding to the staple holes (212), the blocking components (4) comprising a movable plate (41) and a blocking plate (42); when no tissue is clamped between the movable plate (41) and the staple support (22), the blocking plate (42) blocks the staple holes (212), and a bending groove (43) is provided on the blocking plate (42) so that the staples (211) can be inserted into the staple holes (212) when fired. The movable plate (41) is inserted into the bending groove (43) and is bent by the bending groove (43). When tissue is clamped between the movable plate (41) and the staple holder (22), the movement of the movable plate (41) can drive the blocking plate (42) to move, so that the blocking plate (42) releases the blocking of the staple hole (212), so that when the staple (211) is fired, it can be separated from the staple cartridge (21) through the staple hole (212) to staple the tissue; A linkage rod (44) is hinged between the movable plate (41) and the blocking plate (42); when the movable plate (41) moves toward the blocking plate (42), the movable plate (41) can drive the blocking plate (42) to move in a direction parallel to the nail-exiting hole (212) through the linkage rod (44), so that the blocking plate (42) releases the blocking of the nail-exiting hole (212); The firing assembly (3) comprises a firing member (31) and a plurality of pushing blocks (32), wherein the plurality of pushing blocks (32) are arranged in the staple cartridge (21), and the plurality of staples (211) are arranged on corresponding pushing blocks (32), respectively. When the firing member (31) moves in the staple cartridge (21), the corresponding pushing blocks (32) can push the corresponding staples (211) out of the staple outlet holes (212) in a moving order.

2. The disposable hand-held electric stapler with a built-in power supply according to claim 1, wherein: A limiting assembly (5) is provided on the movable plate (41), and the limiting assembly (5) comprises a sliding rod (51) and a force storage member (52). The sliding rod (51) limits the movable plate (41) so that the movable plate (41) can only move in a direction perpendicular to the nail hole (212). When tissue is clamped between the movable plate (41) and the nail support (22), the movement of the movable plate (41) can cause the force storage member (52) to store force. When the movable plate (41) and the nail support (22) release the clamping of the tissue, the force storage member (52) resets the movable plate (41).

3. The disposable hand-held electric stapler with a built-in power supply according to claim 2, wherein: A sliding assembly (6) is provided on the baffle plate (42). The sliding assembly (6) includes a resisting plate (61), a sliding groove (62) and a sliding block (63). The sliding groove (62) is formed in the resisting plate (61), the sliding block (63) is fixedly installed on the baffle plate (42), and the sliding block (63) is slidably engaged in the sliding groove (62).

4. A disposable hand-held electric stapler with a built-in power supply according to claim 3, characterized in that: Support plates (7) are fixedly installed on both sides of the pusher block (32) in the staple cartridge (21). The pusher block (32) is slidably engaged on the support plates (7), and the support plates (7) limit the pusher block (32) to move only in a direction perpendicular to the staple exit hole (212).

5. The disposable hand-held electric stapler with a built-in power source according to claim 4, characterized in that: Cutting holes (8) are formed on opposite sides of the staple cartridge (21) and the anvil (22). One end of the firing member (31) is fixedly installed with a cutting knife (9). The cutting knife (9) is disposed through the cutting hole (8). When the firing member (31) drives the cutting knife (9) to move, the tissue clamped between the staple cartridge (21) and the anvil (22) can be cut open.

6. A disposable hand-held electric stapler with a built-in power supply according to claim 5, characterized in that: The firing member (31) includes a moving block (311) and a plurality of firing blocks (312). The moving block (311) is slidably engaged in the staple cartridge (21). The plurality of firing blocks (312) are fixedly installed at a position of the moving block (311) corresponding to the pusher block (32). Both the moving block (311) and the firing blocks (312) are trapezoidal in shape.

7. A disposable hand-held electric stapler with a built-in power supply according to claim 3, characterized in that: An anvil groove (221) is formed on the anvil (22). The bottom of the anvil groove (221) is arc-shaped. The staple (211) is U-shaped. When the firing assembly (3) fires the staple (211) to move its end into the anvil groove (221), the two ends of the staple (211) are bent under the limitation of the anvil groove (221).

8. A disposable hand-held electric stapler with a built-in power source according to claim 4, characterized in that: A placement groove (321) is formed on the pusher block (32). A portion of the staple (211) away from the end is disposed in the placement groove (321).

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