An electric linear cutting stapler

Abstract

The application discloses an electric linear cutting anastomat, and relates to the field of anastomosers, which comprises an operating part and a head part, the operating part can make the head part rotate, the head part comprises a nail bin and a nail abutting seat, the nail bin and the nail abutting seat can clamp human tissues, and a plurality of suture nails are arranged in the nail bin; a nail pushing assembly is arranged in the nail bin; the nail pushing assembly can move in the nail bin, a plurality of shielding assemblies are arranged at positions corresponding to the suture nails of the nail bin, the shielding assembly comprises a trigger rod and a nail pushing block; after the nail bin and the nail abutting seat clamp human tissues, the human tissues will move the corresponding trigger rod to the direction of the nail bin; the trigger rod moves the nail pushing block to the position of the suture nail. The suture nails of the part of the nail bin and the nail abutting seat which are not clamped by human tissues cannot be fired, the suture nails in the part of the nail bin which are not clamped by human tissues are prevented from being pushed out, the situation that the suture nails are not sutured on human tissues and fall into the human cavity is avoided, and therefore the anastomosis of the anastomat on human tissues is safer.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of anastomat, in particular to a kind of electric linear cutting anastomat. BACKGROUND

[0002] Anastomat is a device used in medicine to replace traditional hand sewing. The principle of anastomat is similar to that of a stapler, that is, a lot of small titanium nails are arranged in 2 circles (or 2 rows) on a special instrument at certain intervals, and the two feet of the titanium nail close after excitation, thereby connecting two intestinal tracts, and there is a small blade between the two circles of titanium nails, which can cut the mucosa between the two circles, thereby completing the anastomosis.

[0003] Linear cutting anastomat has a wide nail magazine front end opening, which is convenient for tissue to be included; this kind of stapler has 6 rows of sewing nails, and there is a blade in the nail magazine, which cuts the tissue from the middle while sewing, so that the 3 rows of sewing nails on each side complete the functions of sewing, hemostasis, etc., some of which cannot change direction, some of which are applied to anastomosis in the mirror cavity, and can change direction, and are more flexible in operation in narrow surgical space.

[0004] Chinese patent CN101999916B discloses a laparoscopic surgical cutting anastomat with elastic neck ring, comprising anastomat body, execution head, extension pipe connecting anastomat body and execution head, operating mechanism controlling the action of execution head; the execution head is composed of execution frame, slide bar, nail cartridge and anvil, the slide bar, nail cartridge and anvil are installed on the execution frame, and the anvil can rotate relative to the nail cartridge; an elastic neck ring is wrapped around the outer periphery of the proximal end of the execution frame, and the edge of the distal end of the elastic neck ring is in close contact with the edge of the proximal end of the anvil; when the anvil is rotated to an open state relative to the nail cartridge, the elastic neck ring is elastically deformed under the pressure of the anvil, and the edge of the distal end of the elastic neck ring remains in close contact with the edge of the proximal end of the anvil; when the anvil is rotated to a closed state relative to the nail cartridge, the edge of the distal end of the elastic neck ring restores to the state of being in close contact with the edge of the proximal end of the anvil, so that the technical effect of reducing the difficulty of machining and assembling of each part in the execution head and the product cost can be achieved, and at the same time, the use is more convenient.

[0005] The above-mentioned patent and prior art still have the following defects:

[0006] The existing anastomat will fire all the sewing nails when firing the sewing nails, and when anastomosing in the human body cavity, the part between the nail cartridge and the nail seat that does not clamp the human tissue will also fire the sewing nails, which will fall into the body cavity, and many titanium alloys on the market will not cause the body to reject, but will still increase the discomfort of the human body, and also waste the sewing nails, leading to the increase of cost, therefore, the present application provides an electric linear cutting anastomat to meet the needs. SUMMARY

[0007] The purpose of the present application is to provide an electric linear cutting anastomat, the suture needle in the part of the needle cartridge not clamping the human tissue part will not be fired, preventing the suture needle in the part of the needle cartridge not clamping the human tissue part from being pushed out, avoiding the case that the suture needle not sutured on the human tissue falls in the human cavity, so that the anastomat is safer for the anastomosis of the human tissue.

[0008] To achieve the above purpose, the present application provides the following technical scheme: an electric linear cutting anastomat, comprising an operation part and a head part, the operation part can make the head part rotate, the head part comprises a needle cartridge and a needle seat, the needle cartridge and the needle seat can clamp human tissue, and a plurality of suture needles are arranged in the needle cartridge; a needle pushing assembly is arranged in the needle cartridge; the needle pushing assembly can move in the needle cartridge;

[0009] A plurality of shielding assemblies are arranged in the needle cartridge corresponding to the positions of the suture needles, and the shielding assembly comprises a trigger rod and a needle pushing block; after the needle cartridge and the needle seat clamp human tissue, the human tissue moves the corresponding trigger rod to the direction of the needle cartridge; the trigger rod moves the needle pushing block to the position of the suture needle; when the needle pushing assembly moves in the needle cartridge, the suture needle is pushed out of the needle cartridge; and the needle seat can bend the end part of the suture needle pushed out of the needle cartridge.

[0010] The operation part is connected with the head part through a connecting part, the needle seat can rotate to form a certain angle with the needle cartridge, the needle seat and the needle cartridge are placed on both sides of the human tissue, the needle seat rotates to the angle with the needle cartridge, the needle seat and the needle cartridge clamp the human tissue, which is the prior art, the human tissue pushes the trigger rod to move to the inside of the needle cartridge, the trigger rod drives the needle pushing block to move, the needle pushing block moves to the position of the corresponding suture needle, when the needle pushing assembly moves in the needle cartridge, the suture needle can be pushed out of the needle cartridge through the needle pushing block, and the part between the needle seat and the needle cartridge not clamping the tissue will not move the corresponding trigger rod, the needle pushing block will not move to the position of the suture needle, when the needle pushing assembly moves in the needle cartridge, the needle pushing assembly does not contact the needle pushing block and the suture needle, so that the part between the needle seat and the needle cartridge not clamping the tissue will not push out the suture needle.

[0011] When the corresponding position of the stapling needle is clamped by the human tissue through the cartridge and the anvil holder, the trigger lever is pushed by the human tissue and drives the pusher block to move to the position of the stapling needle, so that the pusher assembly pushes the corresponding stapling needle out of the cartridge through the pusher block; when the corresponding trigger lever of the stapling needle is not pushed by the human tissue, the pusher block will not move to the position of the corresponding stapling needle, so that the pusher assembly moves in the cartridge, and the stapling needle will not be pushed out of the cartridge; the stapling needles in the cartridge and the anvil holder that are not clamped by the human tissue will not be fired, preventing the stapling needles in the cartridge that are not clamped by the human tissue from being pushed out, avoiding the situation that the stapling needles are not sutured on the human tissue and fall into the human cavity, so that the anastomosis of the anastomat to the human tissue is safer.

[0012] Preferably, the shielding assembly further comprises a track groove, a sliding plate and a sliding sleeve; when the trigger lever moves into the cartridge, the sliding sleeve is driven to move along the track groove, and the track groove is inclined; the sliding sleeve drives the sliding plate to move horizontally, and the sliding plate is slidingly fitted in the sliding sleeve; the sliding plate drives the pusher block to move to the position of the stapling needle; when the pusher assembly moves in the cartridge, the pusher block is driven to move to the direction of the stapling needle, so that the stapling needle is pushed out of the cartridge.

[0013] When the stapling needle is pushed and moved by the human tissue, the stapling needle drives the sliding sleeve to move upward, and the sliding sleeve moves along the track groove while moving upward, so that the sliding sleeve moves obliquely; the sliding sleeve drives the sliding plate to move horizontally, and the sliding plate drives the pusher block to move horizontally, so that the pusher block moves to the position of the corresponding stapling needle.

[0014] Preferably, the sliding plate is connected with the pusher block through a connecting assembly; the connecting assembly comprises a moving plate, a fixed plate and a reset spring; one end of the sliding plate is fixedly installed on the moving plate, and the fixed plate is fixedly installed on the moving plate; the moving plate is provided with a connecting hole corresponding to the position of the pusher block, and the pusher block is slidingly fitted in the connecting hole; a pusher plate is fixedly installed on one end of the pusher block close to the stapling needle; the reset spring is fixedly installed on the fixed plate, and the moving plate is provided with a through hole corresponding to the position of the reset spring; the reset spring is fixedly installed on the pusher plate through the through hole.

[0015] When the sliding plate moves, the moving plate is driven to move, the pusher block is slidingly fitted on the moving plate, so that the pusher assembly can drive the pusher block to move on the moving plate when moving in the cartridge; the pusher block drives the pusher plate to move, and the pusher plate drives the reset spring to move, so that the reset spring is charged; when the pusher block is not pushed by the pusher assembly, the reset spring is reset to drive the pusher plate to reset, and the pusher plate drives the pusher block to reset.

[0016] Preferably, one end of the trigger lever close to the moving plate is fixedly installed with a pushing plate, one end of the pushing plate close to the sliding sleeve is fixedly installed with a guide plate, the guide plate is provided with a guide groove, the sliding sleeve is fixedly installed with a guide block, and the guide block is slidingly matched in the guide groove.

[0017] When the trigger lever is moved by the pushing force, the pushing plate is moved, the pushing plate drives the sliding sleeve to move, and the sliding sleeve drives the pushing block to move to the position corresponding to the suture nail

[0018] Preferably, a plurality of stable components are connected to the position of the shielding assembly in the nail cartridge, the stable component comprises a stable plate, a stable groove and a stable block, the stable plate is fixedly installed in the nail cartridge, and the stable block is fixedly installed on the side of the pushing block close to the stable plate; when the pushing block moves to the position corresponding to the suture nail, the stable block moves to the stable groove.

[0019] When the pushing block is moved by the pushing component, the stable block moves in the stable groove synchronously with the pushing block, so that the pushing block moves more stably.

[0020] Preferably, a connecting plate is fixedly installed in the nail cartridge, the track groove is arranged on the connecting plate, the sliding sleeve is fixedly installed with a track block, and the track block is slidingly matched in the track groove; the connecting plate is provided with a moving groove, the moving block is fixedly installed on the guide plate at the position corresponding to the moving groove, and the moving block is slidingly matched in the moving groove.

[0021] The moving groove is vertically arranged on the connecting plate, the guide plate is pushed by the pushing plate, the guide plate vertically moves along the connecting plate, the guide plate is limited, and the guide plate is more stable.

[0022] Preferably, a stable sleeve is fixedly installed in the nail cartridge, the trigger lever penetrates through the stable sleeve and is slidingly matched with the stable sleeve, one end of the stable sleeve close to the pushing plate is fixedly installed with a connecting tension spring, and the other end of the connecting tension spring is fixedly installed on the pushing plate.

[0023] The stable sleeve is sleeved on the trigger lever and is slidingly matched with the trigger lever, so that the trigger lever is more stable when moving and is not easy to incline, when the pushing plate moves by the trigger lever, one end of the connecting tension spring moves by the pushing plate, the connecting tension spring is charged, and when the pressure of the trigger lever disappears, the connecting tension spring resets and drives the trigger lever to reset through the pushing plate.

[0024] Preferably, the pushing component comprises a connecting block, a pushing rod and a plurality of pushing pieces, the operation part can drive the pushing rod to move, the connecting block is fixedly installed on the pushing rod, a plurality of the pushing pieces are fixedly installed on the connecting block at the positions corresponding to the suture nails, and a plurality of the suture nails are arranged in a rectangular array in the nail cartridge.

[0025] The operation part drives the push rod to move, the push rod drives the pusher to move, the push rod drives the connecting block to move, and the connecting block drives the pusher to move, the pusher and the push block are both arranged in a trapezoidal shape, and the pusher and the push block are matched with each other, in the moving process of the pusher, the push block corresponding to the position of the suture needle sequentially contacts the trapezoidal inclined surface of the pusher in the moving process of the pusher, and moves to the suture needle direction under the action of the trapezoidal inclined surface of the pusher, and the push block pushes the suture needle out of the needle cartridge.

[0026] Preferably, one end of the suture needle close to the push block is provided with a needle clamping block, the needle clamping block is provided with a needle clamping groove, and the two side groove walls of the needle clamping groove can be elastically deformed.

[0027] The pusher pushes the push block to move, the push block abuts against the needle clamping block and pushes the needle clamping block to move, the needle clamping block clamps the suture needle and drives the suture needle to move synchronously, the suture needle moves out of the needle cartridge, the needle clamping block can be elastically deformed under the action of an external force, the suture needle can be separated from the needle clamping block to suture human tissues, and the suture needle can also be replaced and supplemented.

[0028] Preferably, the inside of the needle cartridge is hollow, the push assembly, the shielding assembly and the suture needle are arranged in the needle cartridge, a plurality of needle outlet holes are formed in the side of the needle cartridge close to the needle abutting seat, the needle outlet holes are located at positions of the suture needles, a plurality of closed grooves are formed in the side of the needle abutting seat close to the needle cartridge, the groove bottoms of the closed grooves are arranged in an arc shape, and the two side hole walls of the needle outlet holes are fixedly installed with silica gel blocks.

[0029] The needle clamping block drives the suture needle to move and move out of the needle cartridge through the needle outlet hole, the suture needle is in a U shape, the two end portions of the suture needle penetrate into the closed grooves on the needle abutting seat through human tissues, and under the action of the bottom arc of the closed groove, the two end portions of the suture needle are bent inward, so that human tissues are sutured, the two inside of the needle outlet holes are arranged in the silica gel blocks, the friction force between the silica gel blocks and the suture needle can be increased, and a certain pressure is applied to the suture needle, so that the suture needle is not easy to separate from the needle cartridge when not subjected to a pushing force.

[0030] In summary, the technical effects and advantages of the present application are as follows:

[0031] 1. The present invention has a reasonable structure. By setting a trigger rod next to the suture staple, when the corresponding position of the suture staple is held by human tissue through the staple cartridge and the anvil, the trigger rod is pushed by the human tissue and drives the pusher block to move to the position of the suture staple. The pusher assembly pushes the corresponding suture staple out of the staple cartridge through the pusher block. When the trigger rod corresponding to the suture staple is not pushed by the human tissue, the pusher block will not move to the position of the corresponding suture staple. When the pusher assembly moves in the staple cartridge, the suture staple will not be pushed out of the staple cartridge. The suture staples in the part of the staple cartridge and the anvil that are not held by human tissue will not be fired. This prevents the suture staples from being pushed out of the part of the staple cartridge that is not held by human tissue, and avoids the situation where the suture staple is not sutured to the human tissue and falls into the human cavity. This makes the anastomosis of human tissue by the stapler safer.

[0032] 2. In this invention, the clamping block drives the suture staple to move through the staple outlet hole to the outside of the staple cartridge. The two ends of the suture staple penetrate the human tissue and enter the closed groove on the anvil. Under the action of the bottom curvature of the closed groove, the two ends of the suture staple bend inward to suture the human tissue. The silicone blocks inside the two sides of the staple outlet hole can increase the friction between the suture staple and the suture staple and apply a certain pressure to the suture staple, so that the suture staple is not easy to detach from the staple cartridge when it is not pushed. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0035] Figure 2 This is a schematic diagram of the structure of the operating part in this invention;

[0036] Figure 3 This is a schematic diagram of the head structure in this invention;

[0037] Figure 4 This is a schematic diagram of the staple cartridge structure in this invention;

[0038] Figure 5 This is a schematic diagram of the structure of the suture staple and the staple hole in this invention;

[0039] Figure 6 This is a schematic diagram of the push pin assembly in this invention;

[0040] Figure 7 For the present invention Figure 6 Enlarged view of section A;

[0041] Figure 8 Structure diagram of the trigger lever and the pusher assembly in the present application;

[0042] Figure 9 Structure diagram of the pusher block in the present application;

[0043] Figure 10 Structure diagram of the B part in the present application Figure 9

[0044] Figure 11 Structure diagram of the clamp block and the pusher block in the present application;

[0045] Figure 12 Structure diagram of the C part in the present application Figure 11

[0046] Figure 13 Structure diagram of the D part in the present application Figure 11

[0047] Figure 14 Structure diagram of the staple, the connecting plate, the clamp block and the pusher block in the present application;

[0048] Figure 15 Structure diagram of the E part in the present application Figure 14

[0049] In the figure: 1, operation part; 2, head part; 21, staple cartridge; 22, anvil; 3, staple; 4, shielding assembly; 41, trigger lever; 42, pusher block; 43, track groove; 44, sliding plate; 45, sliding sleeve; 46, pusher plate; 5, pusher assembly; 51, connecting block; 52, push rod; 53, pusher; 6, connecting assembly; 61, moving plate; 62, fixed plate; 63, reset spring; 7, stabilizing assembly; 71, stabilizing plate; 72, stabilizing groove; 73, stabilizing block; 8, push plate; 9, guide plate; 10, guide groove; 11, guide block; 12, connecting plate; 13, track block; 14, moving groove; 15, moving block; 16, stabilizing sleeve; 17, connecting tension spring; 18, clamp block; 19, staple outlet hole. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0051] Embodiment: refer to Figures 1-7 ​​​​An electric linear cutting anastomat is shown, which comprises an operating part 1 and a head part 2, the operating part 1 can rotate the head part 2, the head part 2 comprises a nail bin 21 and a nail seat 22, the nail bin 21 and the nail seat 22 can clamp human tissues, and a plurality of suture nails 3 are arranged in the nail bin 21; a nail pushing assembly 5 is arranged in the nail bin 21; the nail pushing assembly 5 can move in the nail bin 21;

[0052] A plurality of shielding assemblies 4 are arranged in the nail bin 21 corresponding to the positions of the suture nails 3, and each shielding assembly 4 comprises a trigger rod 41 and a nail pushing block 42; after the nail bin 21 and the nail seat 22 clamp human tissues, the human tissues will move the corresponding trigger rod 41 to the direction of the nail bin 21; the trigger rod 41 moves the nail pushing block 42 to the position of the suture nail 3; when the nail pushing assembly 5 moves in the nail bin 21, the suture nail 3 will be pushed out of the nail bin 21; the nail seat 22 can bend the end of the suture nail 3 pushed out of the nail bin 21.

[0053] The operating part 1 is connected with the head part 2 through a connecting part, the nail seat 22 can form a certain angle with the nail bin 21, the nail seat 22 and the nail bin 21 are placed on both sides of human tissues, the nail seat 22 rotates to the closed state with the nail bin 21, the nail seat 22 and the nail bin 21 clamp human tissues, which is the prior art; the human tissues move the trigger rod 41 to the inside of the nail bin 21, the trigger rod 41 drives the nail pushing block 42 to move, the nail pushing block 42 moves to the position of the corresponding suture nail 3, when the nail pushing assembly 5 moves in the nail bin 21, the suture nail 3 can be pushed out of the nail bin 21 through the nail pushing block 42, and the part between the nail seat 22 and the nail bin 21 which does not clamp tissues will not move the corresponding trigger rod 41, the nail pushing block 42 will not move to the position of the suture nail 3, when the nail pushing assembly 5 moves in the nail bin 21, the nail pushing assembly 5 will not contact the nail pushing block 42 and the suture nail 3, so that the part between the nail seat 22 and the nail bin 21 which does not clamp tissues will not push out the suture nail 3.

[0054] By arranging the trigger rod 41 beside the suture nail 3, when the corresponding position of the suture nail 3 clamps human tissues through the nail bin 21 and the nail seat 22, the trigger rod 41 is pushed by the human tissues and drives the nail pushing block 42 to move to the position of the suture nail 3, so that the nail pushing assembly 5 pushes out the corresponding suture nail 3 from the nail bin 21 through the nail pushing block 42; when the corresponding trigger rod 41 of the suture nail 3 is not pushed by the human tissues, the nail pushing block 42 will not move to the position of the corresponding suture nail 3, so that the suture nail 3 will not be pushed out of the nail bin 21 when the nail pushing assembly 5 moves in the nail bin 21, the suture nail 3 in the part between the nail bin 21 and the nail seat 22 which does not clamp human tissues will not be fired, the suture nail 3 in the part of the nail bin 21 which does not clamp human tissues will not be pushed out, the situation that the suture nail 3 is not sutured on the human tissues and falls into the human cavity is avoided, so that the anastomat is safer for the anastomosis of human tissues.

[0055] Further, refer to Figure 4 ,Figure 5 And Figure 10 The shielding assembly 4 further comprises a track groove 43, a sliding plate 44 and a sliding sleeve 45. When the trigger lever 41 moves into the nail cartridge 21, the sliding sleeve 45 can be driven to move along the track groove 43, and the track groove 43 is arranged obliquely. The sliding sleeve 45 drives the sliding plate 44 to move horizontally, and the sliding plate 44 is slidingly fitted in the sliding sleeve 45. The sliding plate 44 drives the push nail block 42 to move to the position of the staple 3. When the push nail assembly 5 moves in the nail cartridge 21, the push nail block 42 can be driven to move to the direction of the staple 3, so as to push the staple 3 out of the nail cartridge 21.

[0056] When the staple 3 is driven to move by the human tissue, the staple 3 drives the sliding sleeve 45 to move upward, and the sliding sleeve 45 moves along the track groove 43 while moving upward, so that the sliding sleeve 45 moves obliquely. The sliding sleeve 45 drives the sliding plate 44 to move horizontally, and the sliding plate 44 drives the push nail block 42 to move horizontally, so that the push nail block 42 moves to the position corresponding to the staple 3.

[0057] Further, referring to Figures 9-12 The sliding plate 44 is connected with the push nail block 42 through a connecting assembly 6. The connecting assembly 6 comprises a moving plate 61, a fixed plate 62 and a reset spring 63. One end of the sliding plate 44 is fixedly installed on the moving plate 61, and the fixed plate 62 is fixedly installed on the moving plate 61. The moving plate 61 is provided with a connecting hole at a position corresponding to the push nail block 42, and the push nail block 42 is slidingly fitted in the connecting hole. One end of the push nail block 42 close to the staple 3 is fixedly installed with a push nail plate 46, the reset spring 63 is fixedly installed on the fixed plate 62, and the moving plate 61 is provided with a through hole at a position corresponding to the reset spring 63. The reset spring 63 is fixedly installed on the push nail plate 46 through the through hole.

[0058] When the sliding plate 44 moves, the moving plate 61 is driven to move, and the push nail block 42 is slidingly fitted on the moving plate 61, so that the push nail block 42 can be driven to move on the moving plate 61 when the push nail assembly 5 moves in the nail cartridge 21. The push nail block 42 drives the push nail plate 46 to move, and the push nail plate 46 drives the reset spring 63 to move, so that the reset spring 63 is charged. When the push nail block 42 is not driven by the push nail assembly 5, the reset spring 63 resets to drive the push nail plate 46 to reset, and the push nail plate 46 drives the push nail block 42 to reset.

[0059] Further, referring to Figure 11 And Figure 13 One end of the trigger lever 41 close to the moving plate 61 is fixedly installed with a push plate 8, one end of the push plate 8 close to the sliding sleeve 45 is fixedly installed with a guide plate 9, the guide plate 9 is provided with a guide groove 10, and the sliding sleeve 45 is fixedly installed with a guide block 11. The guide block 11 is slidingly fitted in the guide groove 10.

[0060] When the trigger lever 41 is moved by the pushing force, the pushing plate 8 is moved, the pushing plate 8 drives the sliding sleeve 45 to move, and the sliding sleeve 45 drives the pusher plate 46 to move to the position corresponding to the suture needle 3

[0061] Further, referring to Figure 4 、 Figure 7 、 Figure 8 and Figure 11 , a plurality of stabilizing assemblies 7 are connected to the position corresponding to the shielding assembly 4 in the nail cartridge 21, the stabilizing assembly 7 comprises a stabilizing plate 71, a stabilizing groove 72 and a stabilizing block 73, the stabilizing plate 71 is fixedly installed in the nail cartridge 21, and the stabilizing block 73 is fixedly installed on the side of the pusher block 42 close to the stabilizing plate 71; when the pusher block 42 moves to the position corresponding to the suture needle 3, the stabilizing block 73 moves into the stabilizing groove 72.

[0062] When the pusher assembly 5 moves the pusher block 42, the stabilizing block 73 moves synchronously with the pusher block 42 in the stabilizing groove 72, so that the pusher block 42 moves more stably.

[0063] Further, referring to Figure 4 、 Figure 7 、 Figure 10 and Figure 15 , the connecting plate 12 is fixedly installed in the nail cartridge 21, the track groove 43 is formed on the connecting plate 12, the track block 13 is fixedly installed on the sliding sleeve 45, and the track block 13 is slidingly fitted in the track groove 43.

[0064] The moving groove 14 is vertically formed on the connecting plate 12, the guide plate 9 is pushed by the pushing plate 8, so that the guide plate 9 moves vertically along the connecting plate 12, the guide plate 9 is limited, so that the guide plate 9 is more stable.

[0065] Further, referring to Figure 4 、 Figure 9 and Figure 15 , the stabilizing sleeve 16 is fixedly installed in the nail cartridge 21, the trigger lever 41 penetrates through the stabilizing sleeve 16 and slidingly fits with the stabilizing sleeve 16, one end of the stabilizing sleeve 16 close to the pushing plate 8 is fixedly installed with the connecting tension spring 17, and the other end of the connecting tension spring 17 is fixedly installed on the pushing plate 8.

[0066] The stabilizing sleeve 16 is sleeved on the trigger lever 41 and slidingly fits with the trigger lever 41, so that the trigger lever 41 is more stable when moving and is not easy to incline, when the pushing plate 8 is moved by the trigger lever 41, one end of the connecting tension spring 17 is moved by the pushing plate 8, the connecting tension spring 17 is charged, when the pressure on the trigger lever 41 disappears, the connecting tension spring 17 resets and drives the trigger lever 41 to reset through the pushing plate 8.

[0067] Further, referring to Figure 1 , Figure 5 , Figure 6 and Figure 8 , the pusher assembly 5 comprises a connecting block 51, a push rod 52 and a plurality of pushers 53, the operating part 1 can drive the push rod 52 to move, the connecting block 51 is fixedly installed on the push rod 52, the plurality of pushers 53 are fixedly installed on the connecting block 51 at positions corresponding to the suturing nails 3, and the plurality of suturing nails 3 are arranged in a rectangular array in the nail cartridge 21.

[0068] The operating part 1 drives the push rod 52 to move, which is prior art and will not be described in detail here. The push rod 52 drives the pushers 53 to move, the push rod 52 drives the connecting block 51 to move, the connecting block 51 drives the pushers 53 to move, the pushers 53 and the pusher blocks 42 are both arranged in a trapezoidal shape, and the pushers 53 cooperate with the pusher blocks 42. During the movement of the pushers 53, the pusher blocks 42 corresponding to the positions of the suturing nails 3 are sequentially contacted with the trapezoidal inclined surfaces of the pushers 53 during the movement of the pushers 53, and are moved to the direction of the suturing nails 3 under the action of the trapezoidal inclined surfaces of the pushers 53. The pusher blocks 42 push the suturing nails 3 out of the nail cartridge 21.

[0069] Further, referring to Figure 9 , the end of the suturing nail 3 close to the pusher block 42 is provided with a nail clamping block 18, the nail clamping block 18 is provided with a nail clamping groove, the two side groove walls of the nail clamping groove can be elastically deformed, and the suturing nail 3 is arranged in the nail clamping groove.

[0070] The pushers 53 push the pusher blocks 42 to move, so that the pusher blocks 42 abut against the nail clamping blocks 18 and push the nail clamping blocks 18 to move. The nail clamping blocks 18 clamp the suturing nails 3 and drive the suturing nails 3 to move synchronously, so that the suturing nails 3 move out of the nail cartridge 21. The nail clamping blocks 18 can be elastically deformed under the action of external force, so that the suturing nails 3 can be separated from the nail clamping blocks 18 to suture human tissues, and the suturing nails 3 can also be replaced and supplemented.

[0071] Further, referring to Figures 3-7 , the inside of the nail cartridge 21 is hollow, the pusher assembly 5, the shielding assembly 4 and the suturing nails 3 are arranged in the nail cartridge 21, a plurality of nail outlet holes 19 are arranged on the side of the nail cartridge 21 close to the nail abutting seat 22, and the nail outlet holes 19 are located at the positions of the suturing nails 3. A plurality of closing grooves are arranged on the side of the nail abutting seat 22 close to the nail cartridge 21, the groove bottoms of the plurality of closing grooves are arranged in an arc shape, and the two side hole walls of the nail outlet holes 19 are fixedly installed with silica gel blocks, and the silica gel blocks abut against the suturing nails 3.

[0072] The staple block 18 drives the stapling nail 3 to move through the nail hole 19 to the outside of the nail bin 21, the stapling nail 3 is U-shaped, the two ends of the stapling nail 3 penetrate into the closing groove on the nail abutting seat 22, and under the action of the arc bottom surface of the closing groove, the two ends of the stapling nail 3 are bent inward, the human tissue is stapled, the inside of the two sides of the nail hole 19 is provided in the silica gel block, the friction between the stapling nail 3 and the silica gel block can be increased, and a certain pressure is applied to the stapling nail 3, so that the stapling nail 3 is not easy to be separated from the nail bin 21 without thrust.

[0073] The working principle of the present application is as follows: when the nail bin 21 and the nail abutting seat 22 have a certain angle and are in an open state, the nail pushing block 42 is located beside the stapling nail 3, when the nail bin 21 and the nail abutting seat 22 rotate at an angle to clamp the human tissue, part of the trigger rod 41 on the nail bin 21 abuts against the human tissue, the trigger rod 41 moves into the nail bin 21 under the clamping force and the pressure of the human tissue, the trigger rod 41 drives the nail pushing plate 46 to move, the nail pushing plate 8 drives the guide plate 9 to move vertically, the guide plate 9 drives the sliding sleeve 45 to move, the sliding sleeve 45 moves obliquely in the track groove 43, the sliding sleeve 45 is slidably connected to the guide plate 9, the sliding sleeve 45 is slidably connected to the sliding plate 44 and drives the sliding plate 44 to move horizontally, the sliding plate 44 drives the moving plate 61 to move horizontally, the moving plate 61 drives the nail pushing block 42 and the nail pushing plate 46 to move to the position corresponding to the stapling nail 3, specifically to the end of the stapling nail 3 away from the nail abutting seat 22, at this time, the pushing piece 53 moves in the nail bin 21, the pushing piece 53 abuts against the nail pushing block 42 and is pushed out of the nail bin 21 under the action of the inclined surface, the nail pushing block 42 drives the nail pushing plate 46 to move, the nail pushing plate 46 abuts against the staple clamping block 18 and drives the staple clamping block 18 to move, the staple clamping block 18 drives the stapling nail 3 to move from the nail hole 19 to the outside of the nail bin 21, the two ends of the stapling nail 3 penetrate into the closing groove on the nail abutting seat 22 and are bent inward under the action of the arc bottom surface of the closing groove, the human tissue is stapled, and the trigger rod 41 between the nail bin 21 and the nail abutting seat 22 which does not clamp the human tissue will not be pushed, the nail pushing block 42 is always located beside the stapling nail 3, when the pushing piece 53 moves in the nail bin 21, it will not contact the nail pushing block 42, so the stapling nail 3 will not be pushed out of the nail bin 21.

[0074] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application have been described in detail, for those skilled in the art, it still can be modified, or part of the technical features are equivalent to replace, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the protection scope of the present application.

Claims

1. An electric linear cutting stapler comprising an operating part (1) and a head part (2), characterized in that: The operation part (1) can rotate the head part (2), the head part (2) comprises a staple cartridge (21) and a staple abutting seat (22), the staple cartridge (21) and the staple abutting seat (22) can clamp human tissues, and a plurality of suturing staples (3) are arranged in the staple cartridge (21); a push-staple assembly (5) is arranged in the staple cartridge (21); the push-staple assembly (5) can move in the staple cartridge (21); A plurality of shielding assemblies (4) are arranged in the staple cartridge (21) corresponding to positions of the suturing staples (3), the shielding assembly (4) comprises a trigger rod (41), a push-staple block (42), a track groove (43), a sliding plate (44) and a sliding sleeve (45); after the staple cartridge (21) and the staple abutting seat (22) clamp human tissues, the human tissues move corresponding trigger rods (41) to the direction of the staple cartridge (21); the trigger rod (41) moves the push-staple block (42) to the position of the suturing staple (3); When the push-staple assembly (5) moves in the staple cartridge (21), the suturing staple (3) is pushed out of the staple cartridge (21); the staple abutting seat (22) can bend the end of the suturing staple (3) pushed out of the staple cartridge (21); When the trigger rod (41) moves into the staple cartridge (21), the sliding sleeve (45) can be driven to move along the track groove (43), and the track groove (43) is arranged to be inclined; the sliding sleeve (45) drives the sliding plate (44) to move horizontally, and the sliding plate (44) is slidably connected in the sliding sleeve (45); the sliding plate (44) drives the push-staple block (42) to move to the position of the suturing staple (3); when the push-staple assembly (5) moves in the staple cartridge (21), the push-staple block (42) can be driven to move to the direction of the suturing staple (3), so that the suturing staple (3) is pushed out of the staple cartridge (21); The sliding plate (44) is connected with the push-staple block (42) through a connecting assembly (6), the connecting assembly (6) comprises a moving plate (61), a fixed plate (62) and a reset spring (63), one end of the sliding plate (44) is fixedly installed on the moving plate (61), and the fixed plate (62) is fixedly installed on the moving plate (61); the moving plate (61) is provided with a connecting hole corresponding to the position of the push-staple block (42), and the push-staple block (42) is slidably connected in the connecting hole; one end of the push-staple block (42) close to the suturing staple (3) is fixedly installed with a push-staple plate (46), the reset spring (63) is fixedly installed on the fixed plate (62), the moving plate (61) is provided with a through hole corresponding to the position of the reset spring (63), and the reset spring (63) is fixedly installed on the push-staple plate (46) through the through hole; One end of the suturing staple (3) close to the push-staple block (42) is provided with a staple clamping block (18), the staple clamping block (18) is provided with a staple clamping groove, and the groove walls on both sides of the staple clamping groove can be elastically deformed; the suturing staple (3) is arranged in the staple clamping groove.

2. The electrically powered linear cutting stapler of claim 1, wherein: The end close to the moving plate (61) of the trigger rod (41) is fixedly installed with a push plate (8), one end close to the sliding sleeve (45) of the push plate (8) is fixedly installed with a guide plate (9), the guide plate (9) is provided with a guide groove (10), and the sliding sleeve (45) is fixedly installed with a guide block (11) which is slidingly matched in the guide groove (10).

3. The electrically powered linear cutting stapler of claim 1, wherein: A plurality of stable assemblies (7) are connected to the positions of the shielding assemblies (4) in the nail cartridge (21), the stable assembly (7) comprises a stable plate (71), a stable groove (72) and a stable block (73), the stable plate (71) is fixedly installed in the nail cartridge (21), and the stable block (73) is fixedly installed on the side of the push nail block (42) close to the stable plate (71); when the push nail block (42) moves to the position corresponding to the suture nail (3), the stable block (73) moves into the stable groove (72).

4. The electrically powered linear cutting stapler of claim 2, wherein: The nail cartridge (21) is fixedly installed with a connecting plate (12), the track groove (43) is arranged on the connecting plate (12), the sliding sleeve (45) is fixedly installed with a track block (13) which is slidingly matched in the track groove (43); the connecting plate (12) is provided with a moving groove (14), the guide plate (9) is fixedly installed with a moving block (15) at the position corresponding to the moving groove (14), and the moving block (15) is slidingly matched in the moving groove (14).

5. The electrically powered linear cutting stapler of claim 2, wherein: The nail cartridge (21) is fixedly installed with a stable sleeve (16), the trigger rod (41) penetrates through the stable sleeve (16) and is slidingly matched with the stable sleeve (16), one end of the stable sleeve (16) close to the push plate (8) is fixedly installed with a connecting tension spring (17), and the other end of the connecting tension spring (17) is fixedly installed on the push plate (8).

6. The electrically powered linear cutting stapler of claim 1, wherein: The push nail assembly (5) comprises a connecting block (51), a push rod (52) and a plurality of pushers (53), the operation part (1) can drive the push rod (52) to move, the connecting block (51) is fixedly installed on the push rod (52), a plurality of the pushers (53) are fixedly installed on the connecting block (51) at positions corresponding to the suture nails (3), and a plurality of the suture nails (3) are arranged in a rectangular array in the nail cartridge (21).

7. The electrically powered linear cutting stapler of claim 1, wherein: The inside of the nail cartridge (21) is hollow, the push nail assembly (5), the shielding assembly (4) and the suture nail (3) are arranged in the nail cartridge (21), a plurality of nail outlet holes (19) are arranged on the side of the nail cartridge (21) close to the nail abutting seat (22), the nail outlet holes (19) are located at positions of the suture nails (3), a plurality of closing grooves are arranged on the side of the nail abutting seat (22) close to the nail cartridge (21), the groove bottoms of the closing grooves are arranged in an arc shape, the two side hole walls of the nail outlet holes (19) are fixedly installed with silica gel blocks, and the silica gel blocks abut against the suture nails (3).

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