阅读说明：本技术 缝合器 (stitching instrument ) 是由 张强 于 2019-09-02 设计创作，主要内容包括：本发明公开了缝合器,其包括主体部、手持部和工作部,手持部和工作部分别位于主体部的两端,工作部包括钉砧、用于安装缝合钉的钉板以及安装部,钉板通过铰接的方式布置在安装部,钉砧布置在安装部上,钉板和钉砧之间为待缝合组织所在的空间区域,手持部包括手持柄和活动柄,手持柄安装在主体部,活动柄通过铰接的方式安装在手持柄,活动柄通过牵引部使钉板摆动。将待缝合组织置于钉板与钉砧之间,通过活动柄和牵引部拉动钉板撞向钉砧,缝合针穿过待缝合组织,缝合针在与钉砧之间的相互作用下尖端弯曲,从而完成缝合。本发明结构合理,操作方便,可广泛应用于医疗器械技术领域。(The invention discloses a stitching instrument, which comprises a main body part, a hand-held part and a working part, wherein the hand-held part and the working part are respectively positioned at two ends of the main body part, the working part comprises a nail anvil, a nail plate for mounting stitching nails and a mounting part, the nail plate is arranged on the mounting part in a hinged manner, the nail anvil is arranged on the mounting part, a space area where tissues to be stitched are positioned is arranged between the nail plate and the nail anvil, the hand-held part comprises a hand-held handle and a movable handle, the hand-held handle is mounted on the main body part, the movable handle is mounted on the hand-held handle in a hinged manner, and the movable handle enables. The tissue to be sutured is arranged between the nail plate and the nail anvil, the movable handle and the traction part pull the nail plate to collide with the nail anvil, the suturing needle penetrates through the tissue to be sutured, and the tip of the suturing needle is bent under the interaction between the suturing needle and the nail anvil, so that the suturing is completed. The invention has reasonable structure and convenient operation, and can be widely applied to the technical field of medical instruments.)

1. Stitching instrument, its characterized in that: including main part (11), handheld portion and work portion are located the both ends of main part (11) respectively, work portion includes nail anvil (12), installation department (14) and nail board (13) that are used for installing the nail to sew up, nail board (13) are arranged at installation department (14) through articulated mode, nail anvil (12) are arranged on installation department (14), the space region at tissue place for waiting to sew up between nail board (13) and nail anvil (12), handheld portion is including handheld handle (15) and activity handle, install in main part (11) handheld handle (15) in handheld handle (15), the activity handle makes nail board (13) swing through traction portion (16).

2. the stapler of claim 1, wherein: the mounting part (14) is molded with a first mounting structure (17), the nail plate (13) is provided with a first hinge part (18), and the first hinge part (18) is mounted with the first mounting structure (17) through a first hinge shaft (19).

3. The stapler of claim 2, wherein: the first mounting structure (17) is formed with two first projecting ends, a first hinge portion (18) is located between the two first projecting ends, and a first hinge shaft (19) passes through the two first projecting ends and the first hinge portion (18).

4. The stapler of claim 2 or 3, wherein: the first hinge part (18) is provided with a second connecting shaft (20), and the traction part (16) applies force to the nail plate (13) through the second connecting shaft (20).

5. The stapler of claim 4, wherein: the two ends of the second connecting shaft (20) are respectively provided with a second connecting part (21).

6. the stapler of claim 5, wherein: two fixing parts (22) are formed at one end of the traction part (16), and the fixing parts (22) are correspondingly installed with the second connecting part (21).

7. The stapler of claim 5, wherein: the ends of the two second connecting parts (21) far away from the second connecting shaft (20) are connected with each other, and one end of the traction part (16) is formed with one or more fixing parts (22) for fixing with the second connecting parts (21).

8. The stapler of claim 1, wherein: the nail anvil (12) is provided with a working surface, and a working groove corresponding to the suturing nail is formed on the working surface.

9. the stapler of claim 8, wherein: the working groove comprises a transverse groove (23) and vertical grooves (24) positioned at two ends of the transverse groove (23).

10. The stapler of claim 1, wherein: the nail plate (13) is formed with a mounting groove (25) for mounting a nail.

11. The stapler of claim 10, wherein: end walls are respectively formed at two ends of the mounting groove (25).

12. The stapler of claim 10, wherein: a stopper (26) is arranged on the side wall of the mounting groove (25), and the stopper (26) is provided with a stopper protrusion (27).

13. The stapler of claim 12, wherein: the limiter (26) comprises a first portion (28), a second portion (29) and a third portion, wherein the first portion (28) and the second portion (29) are arranged oppositely, the limiting protrusion (27) is located on one side of the second portion (29), and the first portion (28) is installed with the second portion (29) through the third portion.

14. the stapler of claim 12, wherein: the nail plate (13) is formed with a containing groove (40) for placing the stopper (26).

15. The stapler of claim 14, wherein: a fourth through hole communicated with the mounting groove (25) is formed in the side wall of the accommodating groove (40), and the limiting bulge (27) penetrates through the fourth through hole.

16. The stapler of claim 1, wherein: the main body part (11) is formed with a first through hole through which the traction part (16) can pass.

17. The stapler of claim 1, wherein: a positioning hole (31) is formed in the movable handle, a rotatable positioning arm (30) is arranged on the handheld handle (15), and a positioning bulge corresponding to the positioning hole (31) is formed in the positioning arm (30).

18. the stapler of claim 1, wherein: and a locking nut is arranged at the hinged part of the movable handle and the handheld handle (15).

19. the stapler of claim 1, wherein: a rotatable positioning support piece (32) is arranged on the movable handle, and a positioning groove (33) corresponding to the positioning support piece (32) is formed in the handheld handle (15).

20. The stapler of claim 1, wherein: the articulated shaft of the movable handle and the hand-held handle (15) is provided with a torsional spring.

21. The stapler of claim 1, wherein: the movable handle comprises a third connecting part (34) for connecting the traction part (16) and a holding part (35) for holding.

22. The stapler of claim 21, wherein: the holding part (35) is formed with a wave-shaped structure.

23. The stapler of claim 1, wherein: the body portion (11) is formed with a second through hole arranged with a lead (36) for conducting high frequency electricity to the staple.

24. The stapler of claim 23, wherein: a third through hole (37) for the lead (36) to pass through is formed on the side surface of the hand-held handle (15).

25. The stapler of claim 1, wherein: an operating mirror (38) is also included.

26. The stapler of claim 25, wherein: the mounting part (14) is positioned at the end part of the operation mirror (38), and the main body part (11) is mounted on the side surface of the operation mirror (38) through at least one fastener (39).

27. The stapler of claim 26, wherein: the fastener (39) is formed with a fifth through hole through which the main body part (11) can pass.

28. the stapler of claim 25, wherein: the nail plate (13) is formed with a notch corresponding to the surgical scope (38).

Technical Field

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

Background

Defects in the alimentary tract, particularly perforations, are a common problem encountered during endoscopic procedures. At present, the treatment modes under the endoscope comprise titanium clip closed suture, nylon rope and titanium clip purse-string suture and some suture devices reported abroad. The first two methods are the most common methods in China and have certain limitations. Due to the limited angle of opening of the titanium clip, it is not effective for large perforations. In addition, delayed perforation with congestion and swelling of mucosa at the perforation edge also has difficulty in sealing the perforation wound by a titanium clip. The nylon rope combined with the titanium clip is sewn in a purse-string manner, so that the large-size perforation can be repaired, but the flexibility is poor.

Disclosure of Invention

In order to solve the technical problems, the invention adopts the following technical scheme that the tissue is convenient to suture in the endoscopic minimally invasive technique:

The invention provides a stitching instrument, which comprises a main body part, a handheld part and a working part, wherein the handheld part and the working part are respectively positioned at two ends of the main body part, the working part comprises a nail anvil, a nail plate for mounting stitching nails and a mounting part, the nail plate is arranged on the mounting part in a hinged mode, the nail anvil is arranged on the mounting part, a space area where tissues to be stitched are located is arranged between the nail plate and the nail anvil, the handheld part comprises a handheld handle and a movable handle, the handheld handle is mounted on the main body part, the movable handle is mounted on the handheld handle in a hinged mode, and the movable handle enables the nail plate to swing through a traction part.

Further, the installation part is formed with a first installation structure, the nail plate is provided with a first hinge part, and the first hinge part is installed with the first installation structure through a first hinge shaft.

Further, the first mounting structure is formed with two first protruding ends, the first hinge portion is located between the two first protruding ends, and the first hinge shaft penetrates through the two first protruding ends and the first hinge portion.

Further, the first hinge portion is provided with a second connecting shaft, and the traction portion applies force to the nail plate through the second connecting shaft.

further, second connecting portions are respectively arranged at two ends of the second connecting shaft.

Furthermore, one end of the traction part is formed with two fixing parts, and the fixing parts are correspondingly installed with the second connecting part.

furthermore, the ends, far away from the second connecting shaft, of the two second connecting parts are connected with each other, and one or more fixing parts used for being fixed with the second connecting parts are formed at one end of the traction part.

Further, the nail anvil is provided with a working surface, and a working groove corresponding to the suturing nail is formed in the working surface.

further, the working groove comprises a transverse groove and vertical grooves positioned at two ends of the transverse groove.

Further, the nail plate is formed with a mounting groove for mounting the suturing nail.

furthermore, end walls are respectively formed at two ends of the mounting groove.

Furthermore, the side wall of the mounting groove is provided with a limiting stopper which is provided with a limiting bulge.

Further, the stopper includes first portion, second portion and third portion, and first portion and second portion are relative to be arranged, and spacing arch is located one side of second portion, and first portion passes through the third portion and installs with the second portion.

Furthermore, the nail plate is provided with a containing groove for placing the limiter.

Furthermore, a fourth through hole communicated with the mounting groove is formed in the side wall of the accommodating groove, and the limiting protrusion penetrates through the fourth through hole.

Further, the main body part is formed with a first through hole through which the traction part can pass.

Furthermore, a positioning hole is formed in the movable handle, a rotatable positioning arm is arranged on the handheld handle, and a positioning bulge corresponding to the positioning hole is formed in the positioning arm.

Further, a locking nut is arranged at the hinged position of the movable handle and the hand-held handle.

Furthermore, a rotatable positioning support piece is arranged on the movable handle, and a positioning groove corresponding to the positioning support piece is formed in the handheld handle.

Furthermore, a torsional spring is arranged on a hinged shaft of the movable handle and the hand-held handle.

Further, the movable handle comprises a third connecting part for connecting the traction part and a holding part for holding.

Furthermore, the holding part is formed with a wave-shaped structure.

Further, the body portion is formed with a second through hole, the second through hole being arranged with a lead for conducting high frequency electricity to the staple.

Furthermore, a third through hole for the lead to pass through is formed on the side surface of the handheld handle.

further, the endoscope also comprises an operation mirror.

Further, the installation part is located the tip of art mirror, and the main part is installed in the side of art mirror through at least one fastener.

Furthermore, the fastener is formed with a fifth through hole for the main body part to pass through.

Further, the nail plate is formed with a notch corresponding to the surgical scope.

Has the advantages that: the tissue to be sutured is arranged between the nail plate and the nail anvil, the movable handle and the traction part pull the nail plate to collide with the nail anvil, the suturing needle penetrates through the tissue to be sutured, and the tip of the suturing needle is bent under the interaction between the suturing needle and the nail anvil, so that the suturing is completed. The invention has reasonable structure and convenient operation, and can be widely applied to the technical field of medical instruments.

Drawings

FIG. 1 is a view showing a structure of a suture instrument, in which a main body part and an endoscope are cut off at the middle part thereof, a working part is of a structure according to an embodiment, and a handle part is of a structure according to an embodiment;

FIG. 2 is an exploded view of the stapler of FIG. 1;

FIG. 3 is a front view of the stapler of FIG. 1, illustrating the staple plate and anvil in a properly closed position;

FIG. 4 is a structural view of the mounting portion;

Fig. 5 is a structural view of a first hinge portion, a first hinge shaft, a second connecting shaft, and a second connecting portion;

FIG. 6 is a block diagram of the staple plate filled with staples;

FIG. 7 is a cross-sectional view of the nail plate of FIG. 6;

FIG. 8 is a partial view of area A of FIG. 7;

FIG. 9 is a partial view of area B of FIG. 6;

FIG. 10 is a block diagram of a stopper;

FIG. 11 is a view showing the construction of the caulk nail assembly on the nail plate;

FIG. 12 is a view showing the staple plate after the staple tips have been bent;

FIG. 13 is an exploded view of a third embodiment of a hand piece;

FIG. 14 is a cross-sectional view of a third embodiment of the handle;

FIG. 15 is a structural view of the suture instrument, showing a working portion in a second configuration according to the embodiment and a hand-held portion in a first configuration according to the embodiment;

FIG. 16 is an exploded view of the stapler of FIG. 15;

FIG. 17 is a front view of the stapler of FIG. 15;

fig. 18 is a structural view of the first hinge portion, the first hinge shaft, the second connecting portion, and the pulling portion in the second working portion embodiment.

Detailed Description

The present invention will be further described with reference to fig. 1 to 18.

The invention relates to a stitching instrument, which comprises a main body part 11, a hand-held part and a working part, wherein the hand-held part and the working part are respectively arranged at two ends of the main body part 11, the working part penetrates stitching nails through tissues to be stitched and bends the tips of the stitching nails, and the shapes of the stitching nails are similar to the shapes of stitching nails used by a stitching machine.

The working part comprises an anvil 12, a staple plate 13 for mounting staples and a mounting part 14, the staple plate 13 is arranged on the mounting part 14 in an articulated manner, the anvil 12 is arranged on the mounting part 14, and a space area between the staple plate 13 and the anvil 12 is a space area where tissues to be sutured are located.

In the process of using the suturing device, tissue to be sutured is clamped and pulled into a space area between the nail plate and the nail anvil by a wide-angle endoscope live clamp or an endoscope foreign body clamp or an endoscope three-leg clamp, and then suturing is carried out.

The handheld portion comprises a handheld handle 15 and a movable handle, the handheld handle 15 is mounted on the main body portion 11, the movable handle is mounted on the handheld handle 15 in a hinged mode, the movable handle enables the nail plate 13 to swing through the traction portion 16, and the main body portion 11 is formed with a first through hole through which the traction portion 16 can pass. The traction portion 16 is made of a metal material having both hardness and elasticity. The articulated shaft of the movable handle and the hand-held handle 15 is provided with a torsional spring, and the nail plate 13 is convenient to reset after being sewed through the action of the torsional spring.

The movable handle comprises a third connecting part 34 for connecting the traction part 16 and a holding part 35 for holding, and the third connecting part 34 and the holding part 35 form a V-shaped structure. The grip portion 35 is formed with a wave-shaped structure to increase friction force during operation.

The movable handle takes a hinged point as a fulcrum to pull the traction part 16, the traction part 16 drives the nail plate 13 to collide with the nail anvil 12, the suturing nail pierces the tissue to be sutured, the tip of the suturing nail is bent, the nail plate 13 resets, and the suturing nail is separated from the nail plate 13.

The anvil 12 has a working surface formed with working slots corresponding to the staples, the working slots including a transverse slot 23 and vertical slots 24 at both ends of the transverse slot 23. After the staples pierce the tissue to be stapled, the two tips of the staples respectively abut against the bottom walls of the two vertical slots 24, the nail plate 13 continues to swing towards the anvil 12, the tips of the staples move along the vertical slots 24, the two tips enter the transverse slots 23, and then the two tips of the staples are bent oppositely under the impact of the nail plate 13 towards the anvil 12.

the stitching instrument further comprises an operating mirror 38, the mounting part 14 is arranged at the end part of the operating mirror 38, and the mounting part 14 is a sleeve structure sleeved at the end part of the operating mirror 38. The main body part 11 is arranged on the side surface of the operating mirror 38 through at least one fastener 39, the fastener 39 is provided with a fifth through hole for the main body part 11 to pass through, the nail plate 13 is provided with a notch corresponding to the operating mirror 38, and the notch is designed to avoid the nail plate 13 to shield an operating field when swinging towards the nail anvil 12.

the mounting portion 14 is formed with a first mounting structure 17, the nail plate 13 being arranged with a first articulated portion 18, the first articulated portion 18 being mounted with the first mounting structure 17 by means of a first articulated shaft 19, the nail plate 13 being swung about the first articulated shaft 19. The first mounting structure 17 is formed with two first protruding ends with a first hinge 18 located therebetween, and a first hinge shaft 19 passing through the two first protruding ends and the first hinge 18.

The first hinge portion 18 is provided with a second connecting shaft 20, the second connecting shaft 20 is deviated from the position of the first hinge shaft 19, and the pulling portion 16 applies force to the nail plate 13 through the second connecting shaft 20, thereby swinging the nail plate 13.

The second connecting portions 21 are respectively arranged at two ends of the second connecting shaft 20, two fixing portions 22 are formed at one end of the traction portion 16, the fixing portions 22 are correspondingly mounted on the second connecting portions 21, the fixing portions 22 are located at one ends of the second connecting portions 21, and the mounting positions of the fixing portions 22 and the positions of the nail plates 13 are located on the same side. This can be regarded as the first embodiment of the working part.

The ends of the two second connecting portions 21 remote from the second connecting shaft 20 are connected to each other, i.e. the two second connecting portions 21 form an annular structure in which the mounting portion 14 is located. One end of the traction part 16 is formed with one or more fixing parts 22 for fixing with the second connecting part 21, and the mounting position of the fixing part 22 is opposite to the position of the nail plate 13. This can be regarded as embodiment two of the working part.

The nail plate 13 is formed with a mounting groove 25 for mounting the suturing nail, end walls are respectively formed at two ends of the mounting groove 25, the end walls of the mounting groove 25 can prevent the position deviation of the suturing nail, and the dislocation of the suturing nail and the working groove is avoided.

The side walls of the mounting grooves 25 are provided with stoppers 26, the stoppers 26 have stopper protrusions 27, staples are loaded into the mounting grooves 25, and the staples are prevented from coming out of the mounting grooves 25 by the stoppers 26.

The stopper 26 includes a first portion 28, a second portion 29, and a third portion, the first portion 28 and the second portion 29 being arranged oppositely, the first portion 28 being mounted with the second portion 29 through the third portion, and the stopper projection 27 being located at one side of the second portion 29. The retainer 26 has a U-shaped configuration, and the retainer 26 has elasticity so that when staples are loaded, the staples are pushed out of the area between the retaining protrusions 27 and the side walls of the mounting grooves 25. The both sides of spacing arch 27 are shaped respectively has the guide face of slope, conveniently sews up the nail and fills to mounting groove 25, conveniently sews up the nail and breaks away from mounting groove 25.

The nail plate 13 is formed with a containing groove 40 for placing the stopper 26, a fourth through hole communicated with the mounting groove 25 is formed on the side wall of the containing groove 40, the limiting protrusion 27 penetrates through the fourth through hole, and the side surface of the second part 29 is abutted against the inner side wall of the containing groove 40.

the movable handle is formed with a positioning hole 31, the handle 15 is disposed with a rotatable positioning arm 30, the positioning arm 30 is formed with a positioning protrusion corresponding to the positioning hole 31, or the positioning arm 30 can be designed to be formed with a positioning hole 31 and the movable handle is formed with a positioning protrusion, which can be regarded as a first embodiment of the handle. When the operation mirror 38 arranged with the installation part 14 is extended into the alimentary canal lumen of a patient, in order to avoid the staples to pierce and damage tissues, the space area between the nail plate 13 and the anvil 12 is properly closed, the tips of the staples are placed in the vertical slots 24 of the working slots but are not stressed, and the nail plate 13 and the anvil 12 are kept in the properly closed state through the clamping of the positioning protrusions of the positioning arms 30 and the positioning holes 31.

The hinged joint of the movable handle and the hand-held handle 15 is provided with a locking nut, and the nail plate 13 and the anvil 12 are locked in a proper closed state through the locking nut, which can be regarded as an embodiment two of the hand-held part.

A rotatable positioning support 32 is arranged on the movable handle, and a positioning groove 33 corresponding to the positioning support 32 is formed on the handheld handle 15. The end of the positioning support 32 bears against the positioning slot 33, keeping the plate 13 and the anvil 12 properly closed. It is also contemplated that the movable handle may be formed with a detent 33 and the handle 15 may have a detent support 32 disposed thereon. This can be considered as embodiment three of the handle 15.

The main body 11 is formed with a second through hole, the second through hole is arranged with a lead 36 for conducting high-frequency electricity to the staple, the side of the handle 15 is formed with a third through hole 37 for the lead 36 to pass through, and the lead 36 is connected with an external device after passing through the third through hole 37. In the working part, in order to prevent the wire 36 from interfering with the suturing operation, in the first embodiment of the working part, the wire 36 is routed along the side of the nail plate 13, and in the second embodiment of the working part, the wire 36 is routed along the second connecting portion 21 and then along the side of the nail plate 13.

If the tissue to be sutured is thick and not easy to puncture, a perforation can be cut on the tissue to be sutured in a high-frequency cutting mode, and the suturing nail passes through the perforation.

While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.