CN110115605B

CN110115605B - Linear type stitching instrument

Info

Publication number: CN110115605B
Application number: CN201810116736.3A
Authority: CN
Inventors: 宋言峥; 宋雪敏
Original assignee: Shanghai Fankun Medical Equipment Co ltd
Current assignee: Shanghai Fankun Medical Equipment Co ltd
Priority date: 2018-02-06
Filing date: 2018-02-06
Publication date: 2022-08-26
Anticipated expiration: 2038-02-06
Also published as: CN110115605A

Abstract

The invention provides a linear type stitching instrument. The linear stapler comprises a housing; the nail bin is detachably connected with the shell; a support structure including a handle, a first drive shaft, and a securing lever; a clamping structure comprising a slide bar; a first limit structure; a drive structure; an anti-skid plate; the early warning structure, the early warning structure includes pressure release spring, first outer frame, first sleeve, second reset spring, second sleeve, spring contact, binding post, protection pad, electron, end cover and loudspeaker, the pressure release spring is located the antiskid ribbed tile with between the slide bar, first sleeve with the second sleeve symmetry is fixed in first outer frame, the inside of first sleeve is equipped with the spring contact, just first sleeve with be equipped with between the second sleeve second reset spring. The linear suturing device provided by the invention has the advantages of convenience in use, high operation efficiency and convenience in control of clamping force.

Description

Linear type stitching instrument

Technical Field

The invention relates to the technical field of medical instruments, in particular to a linear type stitching instrument.

Background

The medical instrument refers to instruments, equipment, appliances, in-vitro diagnostic reagents, calibrators, materials and other similar or related articles which are directly or indirectly used for a human body, and the linear suturing device applied to the operation process of the lung, the intestinal tract and the like is beneficial to improving the operation efficiency and the operation quality and is beneficial to the recovery of patients.

However, the clamping pressure of the traditional linear stitching instrument on the stitching part of the patient is not convenient to control and is not intuitive and clear enough in the using process.

Therefore, there is a need to provide a new linear stapler to solve the above technical problems.

Disclosure of Invention

The invention solves the technical problem of providing a linear suturing device which is convenient to use, high in operation efficiency and convenient to control the clamping force.

In order to solve the above technical problems, the present invention provides a linear stapler comprising: a housing; the nail bin is detachably connected with the shell; the supporting structure is fixed on the shell and comprises a handle, a first driving shaft and a fixing rod, the handle is fixed on the shell, the fixing rod is arranged at one end, away from the shell, of the handle, and the first driving shaft penetrates through the fixing rod; the clamping structure is connected with the shell in a sliding mode and comprises a sliding rod, and the sliding rod is connected with the shell in a sliding mode; the first limiting structure is fixed on the handle; one end of the driving structure is connected to the first driving shaft, and the driving structure is clamped with the first limiting structure; the anti-skid plate is connected with the sliding rod in a sliding manner and is arranged on one surface of the sliding rod opposite to the nail bin; the early warning structure is fixed at one end of the sliding rod, which is far away from the shell, and comprises a pressure relief spring, a first outer frame, a first sleeve, a second reset spring, a second sleeve, a spring contact piece, a wiring terminal, a protective pad, an electron, an end cover and a horn, wherein the pressure relief spring is arranged between the antiskid plate and the sliding rod, the first outer frame is detachably connected with the sliding rod, the horn is fixed on the first outer frame, the first sleeve and the second sleeve are symmetrically fixed on the first outer frame, the spring contact piece is arranged in the first sleeve, the second reset spring is arranged between the first sleeve and the second sleeve, the protective pad and the electron are arranged in the second sleeve, the end cover is in threaded connection with the second sleeve, and the wiring terminal penetrates through the second sleeve and extends to the spring contact piece, and the wiring terminal is electrically connected with the loudspeaker.

Preferably, the driving structure comprises a push block, a push plate, a driving rod, a first rotating shaft, a connecting rod, a driving sleeve, a connecting block, a limiting groove and a first return spring, the first driving shaft penetrates through the driving sleeve and the fixing rod, the driving sleeve is rotatably connected with the first driving shaft, the driving sleeve is rotationally connected with the connecting block, the connecting block is fixed on the connecting rod, one end of the connecting rod, which is far away from the shell, is provided with the first return spring, the end of the connecting rod close to the first return spring is provided with the limit groove, the first rotating shaft penetrates through the driving rod and the connecting rod, the driving rod is rotationally connected with the shell, one end of the driving rod, which is far away from the connecting rod, is provided with the push plate, one end of the push plate, which deviates from the driving rod, is fixed with the push block, and the push plate is connected with the shell in a sliding manner.

Preferably, the first limiting structure comprises a driving plate, a first limiting spring, a second driving shaft and a limiting rod, the second driving shaft is connected to the handle and the driving plate in a penetrating mode, the driving plate is connected with the handle in a rotating mode, the first limiting spring is fixed to the driving plate, and the limiting rod is fixed to the limiting plate and extends to the limiting groove.

Preferably, the nail bin comprises a nail bin body and a nail bin groove body, the nail bin body is detachably connected with the shell, the nail bin body is in one-to-one correspondence with the anti-skid plate, the nail bin groove body in one-to-one correspondence with the push block is arranged inside the nail bin body, the push block is in sliding connection with the nail bin groove body, and the depth of the nail bin groove body is equal to the length of the push block.

Preferably, two rows of positioning holes which are distributed linearly are formed in one end, close to the anti-skid plate, of the inside of the nail bin body, and the nail bin groove body is communicated with the positioning holes.

Preferably, the positioning hole and the positioning pad are fixed on the same surface of the nail bin body, the positioning pad is of a semicircular annular structure, and the positioning pad is arranged at one end, deviating from the sliding rod, of the nail bin body.

Preferably, one end, deviating from the positioning hole, of the first outer frame is provided with an indicator lamp, the indicator lamp is electrically connected with the wiring terminal, and the first sleeve is in threaded connection with the first outer frame.

Preferably, the clamping structure further comprises a limiting bar-shaped tooth, a connecting sleeve, a pull ring and a driving spring, the driving spring is arranged between the sliding rod and the handle, the limiting bar-shaped tooth is arranged on the sliding rod, the connecting sleeve is fixed on the sliding rod, and the pull ring is rotatably connected with the connecting sleeve.

Preferably, the second limit structure comprises a second outer frame, a push rod, a limit screw rod, a slide block, a second limit spring, a clamping block, a torsion spring and a limit shaft, the second outer frame is detachably connected with the shell, the limit screw rod is in threaded connection with the second outer frame, the end of the limit screw rod, which is far away from the shell, is provided with the push rod, the end of the limit screw rod, which is far away from the push rod, is provided with the slide block, the second limiting spring is arranged between the sliding block and the second outer frame, the limiting screw rod is abutted against the sliding block, the end of the slide block, which is far away from the limit screw rod, is provided with the torsion spring and the limit shaft, the limit shaft is connected with the slide block and the clamping block in a penetrating way, one end of the torsion spring is fixed on the sliding block, the other end of the torsion spring is fixed on the limiting shaft, and the clamping block is clamped with the limiting strip-shaped teeth.

Preferably, the second limiting structure comprises a second outer frame, a push rod, a limiting lead screw, a slide block, a second limiting spring, a clamping block, a torsion spring, a limiting shaft and a bearing, the second outer frame is detachably connected with the shell, the limiting lead screw is in threaded connection with the second outer frame, the push rod is arranged at one end of the limiting lead screw, which is far away from the shell, the slide block is arranged at one end of the limiting lead screw, which is far away from the push rod, the second limiting spring is arranged between the slide block and the second outer frame, the bearing is arranged between the limiting lead screw and the slide block, the slide block is in rotary connection with the limiting lead screw through the bearing, the torsion spring and the limiting shaft are arranged at one end of the slide block, which is far away from the limiting lead screw, the limiting shaft is in through connection with the slide block and the clamping block, and one end of the torsion spring is fixed on the slide block, the other end of the torsion spring is fixed on the limiting shaft, and the clamping block is clamped with the limiting strip-shaped teeth.

Compared with the related art, the linear suture provided by the invention has the following beneficial effects:

the invention provides a linear stapler which is fixed in a patient affected tissue area through a nail bin and an antiskid plate, wherein the antiskid plate pushes a second sleeve to slide along a direction deviating from the antiskid plate under the action of the tissue interference force, a wiring terminal in the second sleeve is in contact with a spring contact in the first sleeve, electrons and a horn are conducted, the horn gives out early warning sound to prompt a worker that tissues of a patient are uniformly fixed, the tissue fixing quality is further improved, meanwhile, a pressure relief spring is arranged between the antiskid plate and a sliding rod, and under the condition that the antiskid plate is continuously stressed, the tissues are prevented from being damaged due to overlarge stress to influence the rehabilitation quality, and the operation efficiency and the quality are greatly improved.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of a linear stapler according to the present invention;

FIG. 2 is a schematic view of a connection structure between the slide bar and the warning structure shown in FIG. 1;

FIG. 3 is a schematic view of the coupling structure of the drive structure and the staple cartridge shown in FIG. 1;

FIG. 4 is a schematic structural view of the staple cartridge body shown in FIG. 3;

FIG. 5 is a schematic structural view of the first position-limiting structure shown in FIG. 1;

FIG. 6 is a schematic structural view of a second position-limiting structure of a linear stapler according to a first embodiment of the present invention;

FIG. 7 is a schematic structural view of a second position-limiting structure of a linear stapler according to a second embodiment of the present invention.

Reference numbers in the figures: 1. the nail cartridge comprises a shell, a nail cartridge body, a nail cartridge groove body, a supporting structure, a handle, a first driving shaft, a fixing rod, 4, a clamping structure, 41, limiting strip-shaped teeth, 42, a sliding rod, 43, a connecting sleeve, 44, a pull ring, 45, a driving spring, 5, a first limiting structure, 51, a driving plate, 52, a first limiting spring, 53, a second driving shaft, 54, a limiting rod, 6, a driving structure, 61, a push block, 62, a push plate, 63, a driving rod, 64, a first rotating shaft, 65, a connecting rod, 66, a driving sleeve, 67, a connecting block, 68, a limiting groove, 69, a first return spring, 7, an anti-slip plate, 8, an early warning structure, 81, a pressure relief spring, 82, a first outer frame, 83, a first sleeve, 84, a second return spring, 85, a second sleeve, 86, a spring contact piece, 87, a connecting terminal, 88, a first driving spring, a second sleeve, a second driving spring, a third driving spring, a fourth spring, a fifth spring, a sixth, a fifth, a sixth, a fifth, a sixth, a fifth, a sixth, a fifth, a sixth, a fifth, a sixth, a fifth, a sixth, a, The protective pad 89, electron 89a, end cover, 89b, loudspeaker, 9, second limit structure, 91, second outer frame, 92, push rod, 93, spacing lead screw, 94, slider, 95, second spacing spring, 96, fixture block, 97, torsion spring, 98, spacing axle, 99, bearing, 9a, pilot lamp, 9b, locating hole, 9c, locating pad.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

The first embodiment is as follows:

please refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6 in combination, wherein fig. 1 is a schematic structural view of a linear stapler according to a preferred embodiment of the present invention; FIG. 2 is a schematic view of a connection structure between the slide bar and the warning structure shown in FIG. 1; FIG. 3 is a schematic view of the coupling structure of the drive structure and the staple cartridge shown in FIG. 1; FIG. 4 is a schematic structural view of the staple cartridge body shown in FIG. 3; FIG. 5 is a schematic structural view of the first position-limiting structure shown in FIG. 1; FIG. 6 is a schematic structural view of a second position-limiting structure of a linear stapler according to a first embodiment of the present invention. The linear stapler includes: a housing 1; the nail bin 2 is detachably connected with the shell 1; the supporting structure 3 is fixed to the casing 1, the supporting structure 3 includes a handle 31, a first driving shaft 32 and a fixing rod 33, the handle 31 is fixed to the casing 1, the fixing rod 33 is arranged at one end of the handle 31, which is far away from the casing 1, and the first driving shaft 32 penetrates through the fixing rod 33; a clamping structure 4, wherein the clamping structure 4 is slidably connected with the housing 1, the clamping structure 4 comprises a sliding rod 42, and the sliding rod 42 is slidably connected with the housing 1; a first stop structure 5, said first stop structure 5 being fixed to said handle 31; one end of the driving structure 6 is connected to the first driving shaft 32, and the driving structure 6 is fastened with the first limiting structure 5; the anti-skid plate 7 is connected with the sliding rod 42 in a sliding manner, and the anti-skid plate 7 is arranged on one surface of the sliding rod 42 opposite to the nail bin 2; the early warning structure 8 is fixed at one end of the sliding rod 42 deviating from the shell 1, the early warning structure 8 comprises a pressure relief spring 81, a first outer frame 82, a first sleeve 83, a second reset spring 84, a second sleeve 85, a spring contact piece 86, a connecting terminal 87, a protective pad 88, an electronic 89, an end cover 89a and a horn 89b, the pressure relief spring 81 is arranged between the antiskid plate 7 and the sliding rod 42, the first outer frame 82 and the sliding rod 42 are detachably connected, the horn 89b is fixed on the first outer frame 82, the first sleeve 83 and the second sleeve 85 are symmetrically fixed on the first outer frame 82, the spring contact piece 86 is arranged inside the first sleeve 83, the second reset spring 84 is arranged between the first sleeve 83 and the second sleeve 85, the protective pad 88 and the electronic 89 are arranged inside the second sleeve 85, the end cap 89a is screwed to the second sleeve 85, the connection terminal 87 extends through the second sleeve 85 to the spring contact 86, and the connection terminal 87 is electrically connected to the horn 89 b.

The driving structure 6 comprises a pushing block 61, a pushing plate 62, a driving rod 63, a first rotating shaft 64, a connecting rod 65, a driving sleeve 66, a connecting block 67, a limiting groove 68 and a first return spring 69, the first driving shaft 32 penetrates through the driving sleeve 66 and the fixing rod 33, the driving sleeve 66 is rotatably connected with the first driving shaft 32, the driving sleeve 66 is rotatably connected with the connecting block 67, the connecting block 67 is fixed on the connecting rod 65, the first return spring 69 is arranged at one end of the connecting rod 65, which deviates from the shell 1, the limiting groove 68 is arranged at one end of the connecting rod 65, which is close to the first return spring 69, the driving rod 63 and the connecting rod 65 penetrate through the first rotating shaft 64, the driving rod 63 is rotatably connected with the shell 1, and the pushing plate 62 is arranged at one end of the driving rod 63, which deviates from the connecting rod 65, the pushing block 61 is fixed at one end of the pushing plate 62, which is far away from the driving rod 63, and the pushing plate 62 is slidably connected with the shell 1, so that the nail bin 2 is driven conveniently, and the operation efficiency is improved.

The first limiting structure 5 comprises a driving plate 51, a first limiting spring 52, a second driving shaft 53 and a limiting rod 54, the second driving shaft 53 is connected to the handle 31 and the driving plate 51 in a penetrating manner, the driving plate 51 is connected to the handle 31 in a rotating manner, the first limiting spring 52 is fixed to the driving plate 51, the limiting rod 54 is fixed to the limiting plate 51 extending to the limiting groove 68, and in order to facilitate positioning, the connecting rod 65 is limited, so that the tissue damage of a patient caused by misoperation is prevented.

The nail bin 2 comprises a nail bin body 21 and a nail bin groove body 22, the nail bin body 21 is detachably connected with the shell 1, the nail bin body 21 corresponds to the anti-skid plate 7 one to one, the nail bin body 21 is internally provided with the nail bin groove body 22 corresponding to the push block 61 one to one, the push block 61 is slidably connected with the nail bin groove body 22, the depth of the nail bin groove body 22 is equal to the length of the push block 61, and when the fixing nail is driven, the push block 61 extrudes tissues of a patient to cause partial damage of the tissues.

Two rows of positioning holes 9b which are distributed linearly are formed in one end, close to the anti-skid plate 7, of the nail bin body 21, and the nail bin groove body 22 is communicated with the positioning holes 9b, so that the sewing quality is improved.

The positioning hole 9b and the positioning pad 9c are fixed on the same surface of the nail bin body 21, the positioning pad 9c is of a semicircular structure, the positioning pad 9c is arranged at one end, deviating from the sliding rod 42, of the nail bin body 21, the positioning pad 9c is aligned to injured tissues of a patient, no weak point on a sewing thread line is guaranteed, the length of the sewing thread is larger than the sewing width of the tissues, and the sewing quality is improved.

First outer frame 82 deviates from the one end of locating hole 9b is equipped with pilot lamp 9a, pilot lamp 9a with binding post 87 electric connection, just first sleeve 83 with first outer frame 82 threaded connection rotates in order to make the clamping force more convenient control first sleeve 83, adjust binding post 87 with the distance of spring contact 86.

The clamping structure 4 further comprises a limiting rack 41, a connecting sleeve 43, a pull ring 44 and a driving spring 45, wherein the driving spring 45 is arranged between the sliding rod 42 and the handle 31, the limiting rack 41 is arranged between the sliding rod 42, the connecting sleeve 43 is fixed on the sliding rod 42, the pull ring 44 is rotatably connected with the connecting sleeve 43, and the driving is more convenient and flexible.

The second limiting structure 9 includes a second outer frame 91, a push rod 92, a limiting screw rod 93, a sliding block 94, a second limiting spring 95, a clamping block 96, a torsion spring 97 and a limiting shaft 98, the second outer frame 91 is detachably connected with the housing 1, the limiting screw rod 93 is in threaded connection with the second outer frame 91, the push rod 92 is arranged at one end of the limiting screw rod 93 departing from the housing 1, the sliding block 94 is arranged at one end of the limiting screw rod 93 departing from the push rod 92, the second limiting spring 95 is arranged between the sliding block 94 and the second outer frame 91, the limiting screw rod 93 is abutted against the sliding block 94, the torsion spring 97 and the limiting shaft 98 are arranged at one end of the sliding block 94 departing from the limiting screw rod 93, the limiting shaft 98 is connected to the sliding block 94 and the clamping block 96 in a penetrating manner, one end of the torsion spring 97 is fixed to the sliding block 94, the other end of the torsion spring 97 is fixed on the limiting shaft 98, the fixture block 96 is clamped with the limiting strip-shaped teeth 41, two sides of a sewn tissue area are clamped by tissue forceps to form a part needing to be anastomosed, A1-A2 in the figure 4 is the tissue sewing length, B1-B2 is the tissue damage length, the A1-A2 direction faces the tail end of the patient sewing area, the stability of the sewing area is improved, meanwhile, the damage of nearby tissues is prevented, the nail leakage phenomenon is prevented, the positioning pad 9c is aligned to the injured tissues of the patient, the fact that no weak point exists on a sewing thread is guaranteed, the sewing thread length is larger than the tissue sewing width is guaranteed, the sewing quality is improved, the anti-skid plate 7 is fixed on the patient tissue area through the nail bin 2 and the anti-skid plate 7, the pull ring 44 is pulled, the slide rod 42 drives the anti-skid plate 7 and the nail bin body 21 to be close, and the fixture block 96 is connected with the limiting strip-shaped teeth 41 in a sliding mode, the antiskid plate 7 is under the effect of the conflict force of the tissue, the antiskid plate 7 pushes the second sleeve 85 to slide along the direction deviating from the antiskid plate 7, the wiring terminal 87 inside the second sleeve 85 is in contact with the spring contact piece 86 inside the first sleeve 83, the electron 89 is conducted with the horn 89b, the horn 89b sends out early warning sound to prompt a worker that the tissue of a patient is uniformly fixed, the pull ring 44 is loosened, and the limiting strip-shaped teeth 41 are clamped and limited with the fixture block 96.

Example two:

referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 7, wherein fig. 1 is a schematic structural view of a linear stapler according to a preferred embodiment of the present invention; FIG. 2 is a schematic view of a connection structure between the slide bar and the warning structure shown in FIG. 1; FIG. 3 is a schematic view of the coupling structure of the drive structure and the staple cartridge shown in FIG. 1; FIG. 4 is a schematic structural view of the staple cartridge body shown in FIG. 3; FIG. 5 is a schematic structural view of the first position-limiting structure shown in FIG. 1; FIG. 7 is a schematic structural view of a second position-limiting structure of a linear stapler according to a second embodiment of the present invention. The linear stapler includes: a housing 1; the nail bin 2 is detachably connected with the shell 1; the supporting structure 3 is fixed to the casing 1, the supporting structure 3 includes a handle 31, a first driving shaft 32 and a fixing rod 33, the handle 31 is fixed to the casing 1, the fixing rod 33 is arranged at one end of the handle 31, which is far away from the casing 1, and the first driving shaft 32 penetrates through the fixing rod 33; a clamping structure 4, wherein the clamping structure 4 is slidably connected with the housing 1, the clamping structure 4 comprises a sliding rod 42, and the sliding rod 42 is slidably connected with the housing 1; a first stop structure 5, said first stop structure 5 being fixed to said handle 31; one end of the driving structure 6 is connected to the first driving shaft 32, and the driving structure 6 is clamped with the first limiting structure 5; the anti-skid plate 7 is connected with the sliding rod 42 in a sliding manner, and the anti-skid plate 7 is arranged on one surface of the sliding rod 42 opposite to the nail bin 2; the early warning structure 8 is fixed at one end of the sliding rod 42 deviating from the shell 1, the early warning structure 8 comprises a pressure relief spring 81, a first outer frame 82, a first sleeve 83, a second reset spring 84, a second sleeve 85, a spring contact piece 86, a connecting terminal 87, a protective pad 88, an electronic 89, an end cover 89a and a horn 89b, the pressure relief spring 81 is arranged between the antiskid plate 7 and the sliding rod 42, the first outer frame 82 and the sliding rod 42 are detachably connected, the horn 89b is fixed on the first outer frame 82, the first sleeve 83 and the second sleeve 85 are symmetrically fixed on the first outer frame 82, the spring contact piece 86 is arranged inside the first sleeve 83, the second reset spring 84 is arranged between the first sleeve 83 and the second sleeve 85, the protective pad 88 and the electronic 89 are arranged inside the second sleeve 85, the end cap 89a is screwed to the second sleeve 85, the connection terminal 87 penetrates through the second sleeve 85 and extends to the spring contact 86, and the connection terminal 87 is electrically connected to the horn 89 b.

The driving structure 6 comprises a pushing block 61, a pushing plate 62, a driving rod 63, a first rotating shaft 64, a connecting rod 65, a driving sleeve 66, a connecting block 67, a limiting groove 68 and a first return spring 69, the first driving shaft 32 penetrates through the driving sleeve 66 and the fixing rod 33, the driving sleeve 66 is rotatably connected with the first driving shaft 32, the driving sleeve 66 is rotatably connected with the connecting block 67, the connecting block 67 is fixed on the connecting rod 65, one end of the connecting rod 65, which deviates from the shell 1, is provided with the first return spring 69, one end of the connecting rod 65, which is close to the first return spring 69, is provided with the limiting groove 68, the first rotating shaft 64 penetrates through the driving rod 63 and the connecting rod 65, the driving rod 63 is rotatably connected with the shell 1, one end of the driving rod 63, which deviates from the connecting rod 65, is provided with the pushing plate 62, the pushing block 61 is fixed at one end of the pushing plate 62, which is far away from the driving rod 63, and the pushing plate 62 is slidably connected with the shell 1, so that the nail bin 2 is driven conveniently, and the operation efficiency is improved.

The nail bin 2 comprises a nail bin body 21 and a nail bin groove body 22, the nail bin body 21 is detachably connected with the shell 1, the nail bin body 21 corresponds to the anti-skid plate 7 in a one-to-one mode, the nail bin groove body 22 corresponding to the push block 61 in a one-to-one mode is arranged inside the nail bin body 21, the push block 61 is connected with the nail bin groove body 22 in a sliding mode, the depth of the nail bin groove body 22 is equal to the length of the push block 61, and in order to prevent the push block 61 from extruding the tissue of a patient when the fixing nail is driven, the tissue is partially damaged.

The second limiting structure comprises a second outer frame 91, a push rod 92, a limiting screw rod 93, a slide block 94, a second limiting spring 95, a clamping block 96, a torsion spring 97, a limiting shaft 98 and a bearing 99, the second outer frame 91 is detachably connected with the shell 1, the limiting screw rod 93 is in threaded connection with the second outer frame 91, the push rod 92 is arranged at one end of the limiting screw rod 93 departing from the shell 1, the slide block 94 is arranged at one end of the limiting screw rod 93 departing from the push rod 92, the second limiting spring 95 is arranged between the slide block 94 and the second outer frame 91, the bearing 99 is arranged between the limiting screw rod 93 and the slide block 94, the slide block 94 is in rotary connection with the limiting screw rod 93 through the bearing 99, and the torsion spring 97 and the limiting shaft 98 are arranged at one end of the slide block 94 departing from the limiting screw rod 93, the limiting shaft 98 is connected with the sliding block 94 and the blocking block 96 in a penetrating manner, one end of the torsion spring 97 is fixed on the sliding block 94, the other end of the torsion spring 97 is fixed on the limiting shaft 98, the blocking block 96 is clamped with the limiting strip-shaped teeth 41, two sides of a sutured tissue area are clamped by tissue forceps to form a part needing anastomosis, in the figure 4, A1-A2 is the tissue suture length, B1-B2 faces the end of the patient suture area in the direction of A1-A2 for the tissue damage length, the stability of the suture area is improved, meanwhile, the damage of nearby tissues is prevented, the phenomenon of nail leakage is prevented, the positioning pad 9c is aligned to the injured tissues of the patient, no weak point on a suture line is ensured, the suture length is ensured to be larger than the tissue suture width, the suture quality is improved, and the nail bin 2 and the anti-skid plate 7 are fixed on the tissue area of the patient, the pull ring 44 is pulled, the slide bar 42 drives the anti-skid plate 7 and the nail bin body 21 to be close, the fixture block 96 is in sliding connection with the limiting strip-shaped teeth 41, the anti-skid plate 7 pushes the second sleeve 85 to slide along the direction deviating from the anti-skid plate 7 under the action of the interference force of the tissue, the wiring terminal 87 inside the second sleeve 85 is in contact with the spring contact piece 86 inside the first sleeve 83, the electronic 89 is conducted with the horn 89b, the horn 89b sends out an early warning sound to prompt that the tissue of a patient of a worker is uniformly fixed, the pull ring 44 is loosened, and the limiting strip-shaped teeth 41 are in clamping limit with the fixture block 96.

The operation efficiency of the linear suture instrument of the first embodiment is 10% higher than that of the common linear suture instrument, the operation quality of the linear suture instrument of the first embodiment is 6% higher than that of the common linear suture instrument, the operation efficiency of the linear suture instrument of the second embodiment is 11% higher than that of the common linear suture instrument, and the operation quality of the linear suture instrument of the second embodiment is 7% higher than that of the common linear suture instrument.

The working principle of the linear stitching instrument provided by the invention is as follows:

firstly, fixing nails are installed inside the nail bin groove body 22 inside the nail bin body 21, then the connecting rod 65 is limited by the limiting rod 54 penetrating through the limiting groove 68, then the limiting screw rod 93 is screwed, the second limiting spring 95 at the bottom end of the sliding block 94 drives the sliding block 94 to slide along the direction of the limiting screw rod 93, the clamping block 96 is separated from the limiting strip-shaped teeth 41 at the top end of the sliding rod 42, the sliding rod 42 is pushed by the pull ring 44, the distance between the anti-skid plate 7 and the nail bin body 21 is suitable for a patient area, one side of the top end of the handle 31 close to the sliding rod 42 is provided with scale marks, and a user can adjust the distance between the anti-skid plate 7 and the nail bin body 21 according to the scale marks. Then, the limiting screw rod 93 is fixed on the second outer frame 91, the fixture block 96 is in contact with the limiting strip-shaped teeth 41, two sides of a sewn tissue area are clamped by tissue forceps to form a part needing to be anastomosed, in fig. 4, A1-A2 is the tissue sewing length, B1-B2 is the tissue damage length, the direction of A1-A2 faces the tail end of the sewn area of a patient, the stability of the sewn area is improved, meanwhile, the damage of nearby tissues is prevented, the phenomenon of nail leakage is prevented, the positioning pad 9c is aligned to the injured tissues of the patient, the fact that no weak point exists on a sewing nail line is ensured, the sewing length is larger than the tissue sewing width is ensured, the sewing quality is improved, the antiskid plate 7 and the nail bin 2 are fixed on the tissue area of the patient, the pull ring 44 is pulled, the slide bar 42 drives the antiskid plate 7 and the nail bin body 21 to approach together, the fixture block 96 is slidably connected with the limiting strip-shaped tooth 41, the anti-slip plate 7 pushes the second sleeve 85 to slide along the direction away from the anti-slip plate 7 under the action of the tissue interference force, the connection terminal 87 inside the second sleeve 85 contacts with the spring contact piece 86 inside the first sleeve 83, the electronic component 89 and the horn 89b are conducted, the horn 89b sends out an early warning sound to prompt a worker that the tissue of the patient is uniformly fixed, the pull ring 44 is released, the limiting strip-shaped tooth 41 is clamped and limited with the fixture block 96, then the drive plate 51 is pressed, the limiting rod 54 is separated from the connecting rod 65, the drive sleeve 66 is pressed, the drive sleeve 66 enables the thrust of the push plate 62 driving the push block 61 to be increased through the action of the first drive shaft 32, and the push block 61 pushes the fixing nail to be fixed on the tissue of the patient, then, the limiting screw rod 93 is screwed, so that the second limiting spring 95 at the bottom end of the sliding block 94 drives the sliding block 94 to slide along the direction of the limiting screw rod 93, the fixture block 96 is separated from the limiting strip-shaped teeth 41 at the top end of the sliding rod 42, the driving spring 45 drives the sliding rod 42 to push the anti-slip sleeve 7 to separate, the device is disassembled, and then whether a leakage area is repaired by a needle thread or not is observed.

the invention provides a linear stapler which is fixed on a patient affected tissue area through a nail bin 2 and an antiskid plate 7, under the action of the interference force of the organization, the antiskid plate 7 pushes the second sleeve 85 to slide along the direction away from the antiskid plate 7, the electrical terminals 87 inside the second sleeve 85 contact the spring contacts 86 inside the first sleeve 83, conducting the electrons 89 to the horn 89b, the horn 89b gives out an early warning sound to prompt the staff that the tissues of the patient are uniformly fixed, so as to further improve the tissue fixing quality, and meanwhile, the pressure relief spring 81 is arranged between the antiskid plate 7 and the sliding rod 42, under the condition that the antiskid plate 7 is continuously stressed, the injury caused by overlarge stress of tissues is prevented from influencing the rehabilitation quality, and the operation efficiency and the quality are greatly improved.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A linear stapler, comprising:

a housing;

the nail bin is detachably connected with the shell;

the supporting structure is fixed on the shell and comprises a handle, a first driving shaft and a fixing rod, the handle is fixed on the shell, the fixing rod is arranged at one end, away from the shell, of the handle, and the first driving shaft penetrates through the fixing rod;

the clamping structure is connected with the shell in a sliding mode and comprises a sliding rod, and the sliding rod is connected with the shell in a sliding mode;

the first limiting structure is fixed on the handle;

one end of the driving structure is connected to the first driving shaft, and the driving structure is clamped with the first limiting structure;

the anti-skid plate is connected with the sliding rod in a sliding manner and is arranged on one surface of the sliding rod opposite to the nail bin;

the early warning structure is fixed at one end, deviating from the shell, of the sliding rod, the early warning structure comprises a pressure relief spring, a first outer frame, a first sleeve, a second reset spring, a second sleeve, a spring contact piece, a wiring terminal, a protective pad, an electron, an end cover and a horn, the pressure relief spring is arranged between the antiskid plate and the sliding rod, the first outer frame is detachably connected with the sliding rod, the horn is fixed on the first outer frame, the first sleeve and the second sleeve are symmetrically fixed on the first outer frame, the spring contact piece is arranged inside the first sleeve, the second reset spring is arranged between the first sleeve and the second sleeve, the protective pad and the electron are arranged inside the second sleeve, the end cover is in threaded connection with the second sleeve, and the wiring terminal penetrates through the second sleeve and extends to the spring contact piece, and the wiring terminal is electrically connected with the loudspeaker.

2. The linear stapler according to claim 1, wherein the driving structure comprises a pushing block, a pushing plate, a driving rod, a first rotating shaft, a connecting rod, a driving sleeve, a connecting block, a limiting groove and a first return spring, the first driving shaft penetrates through the driving sleeve and the fixing rod, the driving sleeve is rotatably connected with the first driving shaft, the driving sleeve is rotatably connected with the connecting block, the connecting block is fixed on the connecting rod, the first return spring is arranged at one end of the connecting rod, which is far away from the housing, the limiting groove is arranged at one end of the connecting rod, which is close to the first return spring, the first rotating shaft penetrates through the driving rod and the connecting rod, the driving rod is rotatably connected with the housing, the pushing plate is arranged at one end of the driving rod, which is far away from the connecting rod, and the pushing block is fixed at one end of the pushing plate, which is far away from the driving rod, and the push plate is connected with the shell in a sliding way.

3. The linear stapler of claim 2, wherein the first position-limiting structure comprises a driving plate, a first position-limiting spring, a second driving shaft and a position-limiting rod, the second driving shaft is connected with the handle and the driving plate in a penetrating manner, the driving plate is connected with the handle in a rotating manner, the first position-limiting spring is fixed on the driving plate, and the position-limiting rod is fixed on the position-limiting plate and extends to the position-limiting groove.

4. The linear stapler according to claim 2, wherein the staple cartridge comprises a staple cartridge body and a staple cartridge groove body, the staple cartridge body is detachably connected with the shell, the staple cartridge body is in one-to-one correspondence with the anti-skid plate, the staple cartridge groove body in one-to-one correspondence with the push block is arranged inside the staple cartridge body, the push block is in sliding connection with the staple cartridge groove body, and the depth of the staple cartridge groove body is equal to the length of the push block.

5. The linear stapler according to claim 4, wherein two rows of linearly distributed positioning holes are formed at one end of the inside of the staple cartridge body close to the anti-slip plate, and the staple cartridge groove body is communicated with the positioning holes.

6. The linear stapler of claim 5, wherein the positioning hole and the positioning pad are fixed on the same surface of the staple cartridge body, the positioning pad is of a semicircular ring structure, and the positioning pad is arranged at one end of the staple cartridge body, which is far away from the slide bar.

7. The linear stapler of claim 5, wherein an indicator light is disposed at an end of the first outer frame away from the positioning hole, the indicator light is electrically connected to the connecting terminal, and the first sleeve is threadedly connected to the first outer frame.

8. The linear stapler of claim 1, wherein the clamping structure further comprises a position-limiting rack, a connecting sleeve, a pull ring, and a driving spring, the driving spring is disposed between the sliding rod and the handle, the position-limiting rack is disposed on the sliding rod, the connecting sleeve is fixed to the sliding rod, and the pull ring is rotatably connected to the connecting sleeve.

9. The linear stapler according to claim 8, wherein the second position-limiting structure comprises a second outer frame, a push rod, a position-limiting screw rod, a slide block, a second position-limiting spring, a clamping block, a torsion spring and a position-limiting shaft, the second outer frame is detachably connected with the housing, the position-limiting screw rod is in threaded connection with the second outer frame, the push rod is arranged at one end of the position-limiting screw rod, which is far away from the housing, the slide block is arranged at one end of the position-limiting screw rod, which is far away from the push rod, the second position-limiting spring is arranged between the slide block and the second outer frame, the position-limiting screw rod is in contact with the slide block, the torsion spring and the position-limiting shaft are arranged at one end of the slide block, which is far away from the position-limiting screw rod, the torsion shaft is in through connection with the slide block and the clamping block, one end of the torsion spring is fixed to the slide block, and the other end of the torsion spring is fixed to the position-limiting shaft, the clamping block is clamped with the limiting strip-shaped teeth.

10. The linear stapler of claim 8, wherein the second position-limiting structure comprises a second outer frame, a push rod, a position-limiting screw rod, a sliding block, a second position-limiting spring, a clamping block, a torsion spring, a position-limiting shaft and a bearing, the second outer frame is detachably connected with the housing, the position-limiting screw rod is in threaded connection with the second outer frame, the push rod is arranged at one end of the position-limiting screw rod, which is far away from the housing, the sliding block is arranged at one end of the position-limiting screw rod, which is far away from the push rod, the second position-limiting spring is arranged between the sliding block and the second outer frame, the bearing is arranged between the position-limiting screw rod and the sliding block, the sliding block is in rotational connection with the position-limiting screw rod through the bearing, the torsion spring and the position-limiting shaft are arranged at one end of the sliding block, which is far away from the position-limiting screw rod, and the position-limiting shaft is connected with the sliding block and the clamping block in a penetrating manner, one end of the torsion spring is fixed on the sliding block, the other end of the torsion spring is fixed on the limiting shaft, and the clamping block is clamped with the limiting strip-shaped teeth.