CN217390790U - Endoscope screw nail releasing device - Google Patents

Abstract

The application provides an scope screw nail release, include: the fixing frame, the sewing assembly, the pushing piece, the limiting part and the suture line. The stitching assembly comprises a plurality of stitching nails, each stitching nail is provided with a central hole, and the stitching thread is positioned in the central hole of the stitching nail. The application provides scope spiral nail release, the suture is located the centre bore that sews up the nail, at the in-process that sews up the rotatory anchoring of nail, the suture rotates around the axis of self can not twine to tie a knot and lock and die on sewing the nail, has avoided sewing up the condition emergence that the nail can't slide on the suture, has guaranteed promptly to tighten up a plurality of suturing nails smoothly through the suture to the realization is sewed up effectively to the surface of a wound.

Description

Endoscope screw nail releasing device

Technical Field

The application relates to the technical field of interventional medical equipment, in particular to an endoscope spiral nail releasing device.

Background

The endoscope minimally invasive surgery has the characteristics of high efficiency, accuracy, good surgery effect, quick recovery, small damage to a patient, no need of laparotomy and the like. Suturing a wound surface is a common and challenging issue during minimally invasive surgery. Instruments for suturing wounds under an endoscope have certain limitations, and lack of instruments which can close the wounds through a suture similar to surgical open surgery. In the prior related art, the operation is not efficient, the suture device needs to be repeatedly installed for multiple times, the wound surface cannot be continuously sutured at one time, and meanwhile, medical risks exist when a surgeon repeatedly installs a sharp suture device.

SUMMERY OF THE UTILITY MODEL

The application aims to provide an endoscope spiral nail releasing device which is simple to operate and high in suturing efficiency.

To achieve the above object, the present application provides an endoscopic helical screw releasing device, comprising: the fixing frame comprises a frame body and an outer tube; the suturing assembly comprises a plurality of suturing nails, the suturing nails are sequentially arranged in the outer tube in a stacking mode, a central hole is formed in each suturing nail, and the outer tube can drive the suturing nails to rotate; the pushing piece is arranged on the frame body and can move along the axial direction of the outer pipe, and the abutting end of the pushing piece is inserted into the outer pipe and is pressed on the sewing assembly; the limiting part is positioned in the outer tube and used for limiting the suturing nail to be pulled out of the outer tube, and when a first preset condition is met, the suturing nail can be separated from the limiting part and pulled out of the outer tube; and the suture passes through the plurality of suturing nails in sequence and is fixedly connected with one suturing nail arranged close to the outlet of the outer tube, other suturing nails can slide on the suture, and the suture is positioned in a central hole of the suturing nail.

The endoscope screw nail releasing device further comprises: the pulling piece is arranged on the frame body and can move along the axial direction of the outer pipe; the pushing piece is provided with a first through hole penetrating through the pushing piece, and the clamping end of the pulling piece penetrates through the first through hole and extends into the outer pipe; each suture nail is provided with a first clamping structure, and the clamping end sequentially penetrates through the suture nails and is clamped with the first clamping structure of the suture nail arranged close to the outlet of the outer tube; when satisfying first preset condition, the joint end can follow deviate from in the first joint structure, the joint end does stop part.

The endoscopic screw release device according to the above, wherein said suturing assembly further comprises: the locking shell is arranged in the outer tube and positioned at one side adjacent to the frame body, and a first thread passing hole for passing the suture is formed in the locking shell; the first cutting shell is arranged in the locking shell, a first cutting hole and a first limiting hole are formed in the first cutting shell, the pulling piece penetrates through the first limiting hole, the clamping end can interfere with the first cutting shell, the suture penetrates through the first cutting hole, and the first cutting hole is correspondingly arranged and communicated with the first thread passing hole; the first extrusion piece is arranged in the locking shell and is positioned between the first cutting shell and the suturing nail, the pulling piece penetrates through the first extrusion piece, a second clamping structure matched with the clamping end is arranged on the first extrusion piece, and the clamping end can be separated from the second clamping structure when a second preset condition is met; the pulling piece drives the first extrusion piece to move in the locking shell and extrude the suture to fix the suture on the locking shell.

The endoscope spiral nail releasing device comprises a first extrusion piece, a second extrusion piece, a connecting hole, clamping pieces and a clamping end, wherein the first extrusion piece is provided with the connecting hole penetrating through the first extrusion piece, the side walls of the connecting hole, which are oppositely arranged, are respectively provided with the clamping pieces, the two clamping pieces oppositely extend along the direction vertical to the side walls of the connecting hole, a clamping hole is formed between the two clamping pieces, and the clamping end penetrates through the clamping hole and is clamped with the clamping pieces; the second clamping structure comprises the connecting hole and the clamping sheet.

The endoscope screw nail releasing device further comprises: the cutting and locking device is penetrated by the suture after the suture penetrates out of the outer tube; wherein, the cut-off deadlocking device comprises: the mounting frame comprises a frame body, a handle and a pressing pipe; the traction part comprises a moving part and a traction part, the moving part is arranged on the frame body and can drive the traction part to move along the axial direction of the pressure pipe, the traction part penetrates through the frame body and extends into the pressure pipe, and the end part of the traction part is provided with a clamping part; the fixing shell is abutted against one end, far away from the frame body, of the abutting pipe, and a second thread passing hole for passing the suture is formed in the fixing shell; the second cutting shell is arranged in the fixed shell, a second cutting hole and a second limiting hole are formed in the second cutting shell, the traction part penetrates through the second limiting hole, the clamping part of the traction part can interfere with the second cutting shell, the suture penetrates through the second cutting hole, and the second cutting hole is correspondingly formed in the second thread passing hole and is communicated with the second thread passing hole; and the second extruded part is arranged in the fixed shell and is positioned between the second cutting shell and the suturing nail, the traction part penetrates through the second extruded part, the second extruded part is provided with a third clamping structure matched with the clamping end, and when a third preset condition is met, the clamping end can be separated from the third clamping structure.

The endoscope spiral nail releasing device is characterized in that the second extrusion piece is provided with a second through hole penetrating through the second extrusion piece; the traction part penetrates through the second through hole, the clamping part can interfere with the second extrusion piece, and cutting seams are respectively arranged on the side walls, opposite to the second through hole, of the second through hole; the third engagement structure includes the slit and the second through hole.

The endoscope screw nail releasing device is characterized in that the pulling piece is rotatably arranged on the frame body through threads.

The endoscope spiral nail releasing device is characterized in that the frame body is provided with a threaded rod, the pulling piece is provided with a threaded hole, and the threaded rod is screwed into the threaded hole.

The endoscope helical nail releasing device is characterized in that the frame body is provided with a rotating cavity, the cavity wall of the rotating cavity is provided with an internal thread, the outer surface of the pulling piece is provided with an external thread, and the internal thread is in threaded connection with the external thread.

The endoscope spiral nail releasing device comprises an outer tube, a fixing tube, a rotating tube and a fixing screw, wherein the rotating tube is rotatably connected with the fixing tube; a plurality of suturing nails are arranged in the rotating tube, and the fixed tube is connected with the rack body; the shape surrounded by the inner wall surface of the rotating tube is non-circular, the outer surface of the abutting end is matched with the inner wall surface of the rotating tube, and the outer surface of the suturing nail is matched with the inner wall surface of the rotating tube; the pushing piece can drive the rotating pipe to rotate around the axis of the outer pipe relative to the fixed pipe.

The endoscope helical nail release device is characterized in that the suture nail is symmetrically provided with two elastic sheets, the elastic sheets are pressed against the inner wall of the outer tube, and the elastic sheets are the limiting parts.

The endoscope spiral nail releasing device comprises a stitching nail, wherein the stitching nail comprises a base body and a spiral needle head, the spiral needle head is fixed to one end of the base body, the first clamping structure is fixed to the other end of the base body, the base body is provided with the central hole, and the stitching thread and the pulling piece penetrate through the central hole.

Compared with the prior art, the technical scheme has the following advantages:

the suture is threaded in the center hole of the suturing nail, and in the process of anchoring the suturing nail in a rotating mode, the suture rotates around the axis of the suture nail and cannot be wound, knotted and locked on the spiral needle head of the suturing nail, the situation that the suturing nail cannot slide on the suture is avoided, and the suture nail can be smoothly tightened through the suture, so that effective suturing to the wound surface is achieved.

Drawings

The drawings are only for purposes of illustrating and explaining the present application and are not to be construed as limiting the scope of the present application. Wherein:

FIG. 1 is an exploded view of a first embodiment of an endoscopic screw release device according to the present application;

FIG. 2 is a schematic cross-sectional view of a first embodiment of an endoscopic screw release device according to the present application;

FIG. 3 is a partial schematic view of the endoscopic screw release device shown in FIG. 2;

FIG. 4 is a schematic structural view of a staple described herein;

FIG. 5 is a cross-sectional view of the severing and locking portion of the present application in a locked condition;

FIG. 6 is an exploded view of the severing and locking portion of the present application;

FIG. 7 is a schematic cross-sectional view of the severing and locking portion in the severing configuration;

FIG. 8 is a schematic view of a shear lock apparatus according to the present application;

FIG. 9 is a schematic view, partly in section, of the shut off deadlocking apparatus of FIG. 8 in a locked condition;

FIG. 10 is a schematic view of a partially exploded view of the shut off deadlocking apparatus of FIG. 8;

FIG. 11 is a schematic view, partly in section, of the shut off deadlocking apparatus of FIG. 8 in a shut off condition;

FIG. 12 is an exploded view of a second embodiment of an endoscopic screw release device according to the present application;

FIG. 13 is a cross-sectional structural schematic of an outer tube according to the present application;

FIG. 14 is a schematic drawing in section with portions broken away showing a third embodiment of an endoscopic screw release device according to the present application;

FIG. 15 is a schematic illustration in partial cross-section of a first embodiment of a pulling member according to the present application;

FIG. 16 is a schematic view, partly in section, of a second embodiment of a pulling member according to the present application;

FIG. 17 is a schematic view, partly in section, of a third embodiment of a pulling member according to the present application.

The reference numbers illustrate:

10. a fixed mount; 11. a frame body; 12. an outer tube; 121. a fixed tube; 122. rotating the tube; 123. a card slot; 13. a threaded rod; 20. a suturing assembly; 21. suturing nails; 211. a central bore; 212. a substrate; 213. A screw needle; 22. a first clamping structure; 23. a locking housing; 231. a first wire passing hole; 24. a first cut-off shell; 241. a first cut-off hole; 242. a first limiting hole; 25. a first extrusion; 251. a second clamping structure; 26. a spring plate; 30. a pusher member; 31. a first through hole; 32. a butt joint end; 40. a limiting component; 50. sewing; 60. a pulling member; 61. a clamping end; 62. a threaded hole; 70. cutting off the locking device; 71. a mounting frame; 711. a rack body; 712. a handle; 713. pressing the pipe; 72. a traction member; 721. a moving part; 722. a traction part; 7221. a clamping part; 73. a stationary case; 731. a second wire passing hole; 74. a second cut-off housing; 741. a second cut-off hole; 742. a second limiting hole; 75. a second extrusion; 751. a second through hole; 752. and (6) cutting.

Detailed Description

The present application is described in further detail below with reference to the figures and examples. The features and advantages of the present application will become more apparent from the description.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

In addition, the technical features related to the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other. The following discussion provides a number of embodiments of the present application. While each embodiment represents a single combination of applications, the various embodiments of the disclosure may be substituted or combined in any combination, and thus, the disclosure is intended to include all possible combinations of the same and/or different embodiments of what is described. Thus, if one embodiment comprises A, B, C and another embodiment comprises a combination of B and D, then this application should also be considered to comprise an embodiment that comprises A, B, C, D in all other possible combinations, although this embodiment may not be explicitly recited in the text below. In addition, the technical features described below in the different embodiments of the present application may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 3, the present application provides an endoscopic helical nail releasing device comprising: a fixed frame 10, a sewing component 20, a pushing piece 30, a limiting part 40 and a suture 50.

The fixing frame 10 includes a frame body 11 and an outer tube 12.

The suturing assembly 20 comprises a plurality of suturing nails 21, the suturing nails 21 are sequentially stacked in the outer tube 12, each suturing nail 21 is provided with a central hole 211, and the outer tube 12 can drive the suturing nail 21 to rotate. In one embodiment of the present application, as shown in fig. 4, the staple 21 includes a base 212 and a spiral needle 213, the spiral needle 213 is fixed on one end of the base 212, the first latch structure 22 is fixed on the other end of the base 212, and the base 212 is provided with a central hole 211; the helical needle 213 of one staple 21 presses against the other staple 21, and the helical needle 213 is compressed, so as to reduce the space occupied by a single staple 21, and further to enable more staples 21 to be installed in the outer tube 12, and after the first staple 21 is released from the outer tube 12, the helical needle 213 of the second staple 21 is opened due to the loss of the pressing of the first staple 21. Since the spiral needle 213 is limited by the outer tube and the spiral needle 213 can be shaped by the pressing action of the other suturing nail 21, the spiral needle 213 is restored under the action of elasticity when the pressing action of the other suturing nail 21 is lost. The spiral needle head of the suturing nail can be placed inside the outer tube in a compressed mode, and the spiral needle head of the suturing nail can also be placed inside the outer tube in an uncompressed mode.

The pushing member 30 is disposed on the frame 11 and is capable of moving along the axial direction of the outer tube 12, and an abutting end 32 of the pushing member 30 is inserted into the outer tube 12 and pressed against the seaming assembly 20.

The limiting part 40 is positioned in the outer tube 12 and used for limiting the staple 21 from falling out of the outer tube 12, and when a first preset condition is met, the staple 21 can be separated from the limiting part 40 and can fall out of the outer tube 12.

The suture 50 is passed sequentially through a plurality of staples 21 and is fixedly attached to one staple 21 disposed adjacent the exit of the outer tube 12, with the other staples 21 being able to slide over the suture 50, with the suture 50 being located within the central bore 211 of the staple 21.

After the endoscope spiral nail releasing device enters a human body, the pushing piece 30 pushes the spiral needle head 213 of the first suturing nail 21 out of the outer tube 12, and after the suturing nail 21 is completely pushed out of the outer tube 12, the limiting part 40 prevents the first suturing nail 21 from being pulled out of the outer tube 12; then the fixing frame 10 drives the suturing nail 21 to rotate, so that the suturing nail 21 is screwed into the human tissue at the first position; after the staples 21 are fully rotated and anchored in the body tissue, the user increases the external force applied to the pusher 30 to dislodge the first staple 21 from the outer tube 12; the spiral needle head 213 of the second suturing nail 21 is pushed out of the outer tube 12, after the suturing nail 21 is completely pushed out of the outer tube 12, because the clamping end 61 of the pulling piece 60 is clamped with the first clamping structure 22, the limiting part 40 prevents the second suturing nail 21 from being pulled out of the outer tube 12, then the fixing frame 10 drives the suturing nail 21 to rotate, so that the suturing nail 21 is screwed into the human tissue at the second position, because the suture 50 is located in the central hole 211 of the suturing nail 21, in the process of rotationally anchoring the second suturing nail 21, the suture 50 rotates around the axis thereof, cannot be wound and tied and is locked on the second suturing nail 21, and the external force applied to the pushing piece is increased by a user, so that the second suturing nail 21 is pulled out of the outer tube 12; by analogy, the plurality of suturing nails 21 are anchored at the corresponding fixing points of the human tissue, then the plurality of suturing nails 21 are tightened through the suture 50, the suture 50 is locked after the plurality of suturing nails 21 are tightened, and finally the suture 50 is cut off, so that the plurality of suturing nails 21 drive the human tissue around the wound to suture the wound; thereby realized that scope spiral nail release once gets into just can improve the efficiency of sewing up to the surface of a wound to sewing up of the surface of a wound after the human body, in addition, scope spiral nail release's simple structure, convenient operation to improve scope spiral nail release's use comfort, and then increased the market competition of product.

The application provides scope spiral nail release, suture 50 are located the centre bore 211 that sews up nail 21, and at the in-process of sewing up the rotatory anchoring of nail 21, suture 50 can not twine the knot around the axis rotation of self and lock and die on sewing up nail 21, has avoided sewing up nail 21 and can't take place at the gliding condition on suture 50, has guaranteed promptly to tighten up a plurality of sewing up nail 21 smoothly through suture 50 to the realization is sewed up effectively of the surface of a wound.

As shown in fig. 1 to 3, in one embodiment of the present application, the endoscopic screw releasing device further comprises: a pull 60.

The pulling member 60 is provided on the frame body 11 and is movable in the axial direction of the outer tube 12.

The pushing member 30 has a first through hole 31 passing through it, and the clamping end 61 of the pulling member 60 passes through the first through hole 31 and extends into the outer tube 12.

Each staple 21 is provided with a first clamping structure 22, and the clamping end 61 sequentially passes through the central holes 211 of the plurality of staples 21 and is clamped with the first clamping structure 22 of the staple 21 arranged adjacent to the outlet of the outer tube 12.

When satisfying first predetermined condition, joint end 61 can be deviate from first joint structure 22, and joint end 61 is stop part 40.

When the suturing nail 21 is completely pushed out of the outer tube 12, the clamping end 61 of the pulling piece 60 is clamped with the first clamping structure 22, so that the pulling piece 60 prevents the first suturing nail 21 from being pulled out of the outer tube 12; after the suturing nail 21 is completely screwed in and anchored in the human tissue, the user increases the external force applied to the pushing member 30, and at the same time, pulls the pulling member 60 with force, so that the clamping end 61 of the pulling member 60 breaks through the clamping force with the first clamping structure 22 (i.e. meets the first preset condition), and thus the clamping end 61 can be disengaged from the first clamping structure 22, so as to disengage the suturing nail 21 from the outer tube 12.

As shown in fig. 5-7, in one embodiment of the present application, the suturing assembly 20 further comprises: a locking case 23, a first cut-off case 24, and a first presser 25.

The locking case 23 is disposed inside the outer tube 12 at a side adjacent to the frame body 11, and the locking case 23 is provided with a first thread passing hole 231 for passing the suture 50 therethrough.

The first cutting shell 24 is arranged in the locking shell 23, a first cutting hole 241 and a first limiting hole 242 are arranged on the first cutting shell 24, the pulling piece 60 penetrates through the first limiting hole 242, the clamping end 61 can interfere with the first cutting shell 24, the suture 50 penetrates through the first cutting hole 241, and the first cutting hole 241 and the first wire passing hole 231 are correspondingly arranged and communicated.

The first extrusion piece 25 is arranged in the locking shell 23 and is positioned between the first cutting shell 24 and the suturing nail 21, the pulling piece 60 penetrates through the first extrusion piece 25, the first extrusion piece 25 is provided with a second clamping structure 251 matched with the clamping end 61, and when a second preset condition is met, the clamping end 61 can be disengaged from the second clamping structure 251.

The pulling member 60 moves the first pressing member 25 in the locking case 23 and presses the suture 50, thereby fixing the suture 50 to the locking case 23.

After the plurality of suturing nails 21 are anchored at the corresponding human tissue positions, the suturing thread 50 is tightened to tighten the plurality of suturing nails 21, the plurality of suturing nails 21 drive the human tissue around the wound to wrap the wound, then the pulling piece 60 is continuously pulled, and as the clamping end 61 of the pulling piece 60 is clamped with the second clamping structure 251 (as shown in fig. 5), the pulling piece 60 drives the first extrusion piece 25 to move, so that the first extrusion piece 25 is matched with the locking shell 23 to extrude the suturing thread 50, the suturing thread 50 cannot move, and the suturing thread 50 is locked on the locking shell 23; after the suture 50 is locked, the dragging force of the pulling part 60 is continuously increased, so that the clamping end 61 breaks through the clamping force between the clamping end and the second clamping structure 251 (namely, the second preset condition is met), and the clamping end 61 can be separated from the second clamping structure 251; then the clamping end 61 interferes with the first cutting shell 24, the pulling piece 60 drives the first cutting shell 24 to move in the outer tube 12, the first cutting hole 241 is dislocated with the first thread passing hole 231 along with the movement of the first cutting shell 24, the first cutting hole 241 cuts the thread 50 (as shown in fig. 7), and the locking shell 23 and the first extrusion piece 25 are released from the outer tube 12 along with the thread 50 and are left in the human body. Above-mentioned structure has realized once only locking the operation of dying and cutting off suture 50 in human inside, does not need other independent locking device lock to die suture 50, and convenient operation has improved and has sewed up efficiency, and then has increased the market competition of product.

As shown in fig. 6, in one embodiment of the present application, the first presser 25 is provided with a connecting hole therethrough. The side walls of the connecting holes which are arranged oppositely are respectively provided with a clamping piece, the two clamping pieces oppositely extend along the direction vertical to the side walls of the connecting holes, a clamping hole is formed between the two clamping pieces, and the clamping end 61 penetrates through the clamping hole and is clamped with the clamping pieces; the second clamping structure 251 includes a connecting hole and a clamping piece.

The clamping end 61 of the pulling part 60 is clamped with the card, so that the pulling part 60 interferes with the card, a user pulls the force traction part 722 with force, and when the force applied to the card is large, the clamping end 61 deforms the clamping hole, so that the clamping end 61 is separated from the clamping hole, and the function of locking the suture 50 is realized.

As shown in fig. 8 to 11, in one embodiment of the present application, the endoscopic helical screw releasing device further comprises: the deadlocking device 70 is cut and the suture 50 is threaded through the deadlocking device 70 after exiting the outer tube 12.

The cut-off deadlocking device 70 includes: a mounting bracket 71, a pulling member 72, a fixing case 73, a second cutting case 74, and a second pressing member 75.

The mount 71 includes a mount body 711, a handle 712, and a pressing pipe 713.

The traction piece 72 comprises a moving part 721 and a traction part 722, the moving part 721 is arranged on the frame body 711 and can drive the traction part 722 to move along the axial direction of the pressure pipe 713, the traction part 722 penetrates through the frame body 711 and extends into the pressure pipe 713, and the end part of the traction part is provided with a clamping part 7221.

The fixing shell 73 abuts on one end of the pressure tube 713 far from the frame body 711, and a second thread passing hole 731 for passing the thread 50 is provided on the fixing shell 73.

The second cutting case 74 is disposed in the fixing case 73, the second cutting case 74 is provided with a second cutting hole 741 and a second stopper hole 742, the drawing portion 722 passes through the second stopper hole 742, the engaging portion 7221 of the drawing portion 722 can interfere with the second cutting case 74, the thread 50 passes through the second cutting hole 741, and the second cutting hole 741 is disposed corresponding to and communicates with the second thread passing hole 731.

The second extrusion piece 75 is arranged in the fixed shell 73 and is positioned between the second cutting shell 74 and the suturing nail 21, the traction part 722 penetrates through the second extrusion piece 75, a third clamping structure matched with the clamping end 61 is arranged on the second extrusion piece 75, and when a third preset condition is met, the clamping end 61 can be pulled out of the third clamping structure.

After the plurality of suturing nails 21 are anchored at the corresponding human tissue positions, the suturing thread 50 is tightened to tighten the plurality of suturing nails 21, the plurality of suturing nails 21 drive the human tissue around the wound to wrap the wound, then the traction piece 72 is continuously pulled, as the clamping part 7221 of the traction part 722 is clamped with the third clamping structure (as shown in fig. 9), the traction part 722 drives the second extrusion piece 75 to move, so that the second extrusion piece 75 is matched with the fixed shell 73 to extrude the suturing thread 50, the suturing thread 50 cannot move, and the suturing thread 50 is locked on the fixed shell 73; after the thread 50 is locked, the dragging force of the dragging piece 72 is continuously increased, so that the clamping portion 7221 breaks through the clamping force with the third clamping structure (that is, the third preset condition is met), and the clamping portion 7221 can be separated from the third clamping structure; then, the clamping portion 7221 interferes with the second cutting shell 74, the pulling portion 722 drives the second cutting shell 74 to move in the fixed shell 73, the second cutting hole 741 and the second thread passing hole 731 are dislocated along with the movement of the second cutting shell 74, the second cutting hole 741 cuts the suture 50 (as shown in fig. 11), the fixed shell 73 and the second pressing member 75 fall off along with the suture 50, and the suture is left in the human body. The structure realizes the locking operation of the suture 50 in the human body at one time, is convenient to operate, improves the suture efficiency and further increases the market competitiveness of the product. In addition, the cutting and locking device 70 is an independent component and is not connected with other components of the endoscope spiral nail releasing device, so that the complexity of the endoscope spiral nail releasing device is simplified, and meanwhile, more space is provided in the outer tube 12 for arranging the sewing nails 21, so that more sewing nails 21 can be released at one time.

As shown in fig. 10, in one embodiment of the present application, the second presser 75 is provided with a second through hole 751 penetrating therethrough.

The drawing part 722 passes through the second through hole 751, and the clamping part 7221 can interfere with the second pressing member 75, and the side walls of the second through hole 751 opposite to each other are respectively provided with a slit 752.

The third catching structure includes a slit 752 and a second through hole 751.

The clamping portion 7221 of the traction portion 722 is clamped with the second extrusion piece 75, that is, the traction portion 722 interferes with the second extrusion piece 75, the user pulls the force traction piece 72 with force, and when the force applied to the second extrusion piece 75 is large, the clamping portion 7221 deforms the second extrusion piece 75 from the slit 752, so that the clamping portion 7221 is disengaged from the second extrusion piece 75, and the function of locking the suture 50 is realized.

As shown in fig. 1 and 2, in one embodiment of the present application, the pulling member 60 is rotatably disposed on the frame body 11 by a screw thread.

The pulling piece 60 is enabled to rotate relative to the frame body 11, the pulling piece 60 moves along the frame body 11 through threads, the pressure between the clamping end 61 of the pulling piece 60 and the clamping structure is gradually increased, and when the pressure between the clamping end 61 and the clamping structure reaches the preset pressure, the clamping end 61 breaks through the clamping structure, so that the clamping end 61 is separated from the clamping structure; in the process of pulling the removal of piece 60, pressure increases gradually between joint end 61 and the joint structure to the purpose of the pulling force of piece 60 is pulled in accurate control has been realized.

As shown in fig. 1 and 2, in one embodiment of the present application, the frame body 11 is provided with a threaded rod 13, the pulling member 60 is provided with a threaded hole 62, and the threaded rod 13 is screwed into the threaded hole 62.

The part 60 that draws the spiro union is on threaded rod 13, and rotatory part 60 that draws makes it remove along threaded rod 13, and at the in-process of the removal of drawing the part 60, pressure increases gradually between joint end 61 and the joint structure to the purpose of the power of dragging of part 60 is drawn in accurate control has been realized.

In an embodiment of this application, be provided with rotatory chamber on the support body, be provided with the internal thread on the chamber wall in rotatory chamber, draw external screw thread on the surface of piece, internal thread and external screw thread meet soon mutually.

Draw a threaded connection in rotatory intracavity, rotatory drawing makes it remove at rotatory intracavity, at the in-process that draws the removal of piece, and pressure increases gradually between joint end and the joint structure to the purpose that the power of pulling that accurate control drawn the piece has been realized.

As shown in fig. 12 and 13, in one embodiment of the present application, the outer tube 12 includes a fixed tube 121 and a rotating tube 122, and the rotating tube 122 is rotatably coupled to the fixed tube 121.

A plurality of staples 21 are arranged in the rotating tube 122, and the fixed tube 121 is connected with the frame body 11; the inner wall surface of the rotating tube 122 is formed in a non-circular shape, the outer surface of the abutment end 32 is fitted to the inner wall surface of the rotating tube 122, and the outer surface of the staple 21 is fitted to the inner wall surface of the rotating tube 122.

The pushing member 30 can rotate the rotating tube 122 relative to the fixed tube 121 about the axis of the outer tube 12.

After the pushing piece 30 completely pushes the spiral needle 213 of the suturing nail 21 out of the rotating tube 122, the user rotates the pushing piece 30, because the outer surface of the suturing nail 21 interferes with the inner wall surface of the rotating tube 122, the pushing piece 30 drives the rotating tube 122 to rotate, the rotating tube 122 drives the suturing nail 21 to rotate, and therefore the spiral needle 213 is screwed into the human tissue at the corresponding position; above-mentioned rotatory sewing nail 21 operation only needs rotatory impeller 30 just can be with sewing nail 21 screw in human tissue, need not rotate whole support body 11, and easy operation, convenience have guaranteed the use comfort level of product, and then have increased the market competitiveness of product.

It should be understood by those skilled in the art that, in order to ensure that the outer tube 12 can rotate the staples 21, the inner wall surface of the outer tube 12 where the staples 21 are disposed is non-circular. In another embodiment of this application, in order to guarantee that the outer tube can drive to sew up the nail and rotate, be provided with the locating part structure between outer tube and the sewing nail, recess on one of outer tube and the sewing nail if, be provided with the arch on another.

As shown in fig. 14, in an embodiment of the present application, two elastic sheets 26 are symmetrically disposed on the suturing nail 21, the elastic sheets 26 are pressed against the inner wall of the outer tube 12, and the elastic sheets 26 are limiting parts 40. In one embodiment of the present application, two locking slots 123 are symmetrically disposed on the sidewall of the outlet of the outer tube 12, and the elastic sheet 26 can be locked into the locking slots 123.

The spring 26 is pressed against the inner wall of the outer tube 12, that is, the suturing nail 21 is interfered with the outer tube 12 by the spring 26, so as to prevent the suturing nail 21 from being released from the outer tube 12, and in addition, the rotating force applied to the housing can be effectively transmitted to the suturing nail 21 through the spring 26, so that the suturing nail 21 can be rapidly inserted into the human tissue.

As shown in fig. 15 to 17, in an embodiment of the present application, the clamping end 61 of the pulling member 60 is formed by welding an enlarged portion at an end of the pulling member 60, specifically, the pulling member 60 is provided with a jack, the enlarged portion is provided with a plug rod, the plug rod is inserted into the jack, and the plug rod is fixed in the jack by welding; alternatively, the enlarged portion is provided with an insertion hole into which the end of the pulling member 60 is inserted, and the end of the pulling member 60 is fixed in the insertion hole by welding. The shape of the enlarged portion may be spherical, columnar, etc., but this is not necessarily exemplified. Similarly, the clamping part of the traction part is also manufactured in the same way as the clamping end of the pulling part.

In the description of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present application, it is to be noted that unless otherwise explicitly specified or limited.

In the description of the present application, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically indicated and limited. The term "plurality" means two or more unless expressly limited otherwise. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The present application has been described above in connection with preferred embodiments, which are intended to be exemplary only and illustrative only. On the basis of the above, the present application can be subjected to various substitutions and improvements, and the substitutions and the improvements are all within the protection scope of the present application.

Claims (12)

1. An endoscopic helical screw release device, comprising:

the fixing frame comprises a frame body and an outer tube;

the suturing assembly comprises a plurality of suturing nails, the suturing nails are sequentially arranged in the outer tube in a stacking mode, a central hole is formed in each suturing nail, and the outer tube can drive the suturing nails to rotate;

the pushing piece is arranged on the frame body and can move along the axial direction of the outer pipe, and the abutting end of the pushing piece is inserted into the outer pipe and is pressed against the sewing assembly;

the limiting part is positioned in the outer tube and used for limiting the suturing nail to be pulled out of the outer tube, and when a first preset condition is met, the suturing nail can be separated from the limiting part and pulled out of the outer tube; and

the suture penetrates through the stitching nails in sequence and is fixedly connected with one stitching nail arranged close to the outlet of the outer tube, the other stitching nails can slide on the suture, and the suture is positioned in the central hole of the stitching nail.

2. An endoscopic screw release device according to claim 1,

further comprising: the pulling piece is arranged on the frame body and can move along the axial direction of the outer pipe;

the pushing piece is provided with a first through hole penetrating through the pushing piece, and the clamping end of the pulling piece penetrates through the first through hole and extends into the outer pipe;

each suture nail is provided with a first clamping structure, and the clamping end sequentially penetrates through the suture nails and is clamped with the first clamping structure of the suture nail arranged close to the outlet of the outer tube;

when satisfying first preset condition, the joint end can follow deviate from in the first joint structure, the joint end does stop part.

3. An endoscopic screw release device according to claim 2,

the suturing assembly further comprises: the locking shell is arranged in the outer tube and positioned at one side adjacent to the frame body, and a first thread passing hole for passing the suture is formed in the locking shell;

the first cutting shell is arranged in the locking shell, a first cutting hole and a first limiting hole are formed in the first cutting shell, the pulling piece penetrates through the first limiting hole, the clamping end can interfere with the first cutting shell, the suture penetrates through the first cutting hole, and the first cutting hole is correspondingly arranged with and communicated with the first thread passing hole; and

the first extrusion piece is arranged in the locking shell and positioned between the first cutting shell and the suturing nail, the pulling piece penetrates through the first extrusion piece, a second clamping structure matched with the clamping end is arranged on the first extrusion piece, and the clamping end can be pulled out of the second clamping structure when a second preset condition is met;

the pulling piece drives the first extrusion piece to move in the locking shell and extrude the suture to fix the suture on the locking shell.

4. An endoscopic screw release device according to claim 3,

the first extrusion piece is provided with a connecting hole penetrating through the first extrusion piece, the side walls of the connecting hole, which are oppositely arranged, are respectively provided with clamping pieces, the two clamping pieces oppositely extend along the direction vertical to the side walls of the connecting hole, a clamping hole is formed between the two clamping pieces, and the clamping end penetrates through the clamping hole and is clamped with the clamping pieces; the second clamping structure comprises the connecting hole and the card.

5. An endoscopic screw release device according to claim 2,

further comprising: the cutting and locking device is penetrated by the suture after the suture penetrates out of the outer tube;

wherein, the cut-off deadlocking device comprises: the mounting frame comprises a frame body, a handle and a pressing pipe;

the traction part comprises a moving part and a traction part, the moving part is arranged on the frame body and can drive the traction part to move along the axial direction of the pressure pipe, the traction part penetrates through the frame body and extends into the pressure pipe, and the end part of the traction part is provided with a clamping part;

the fixing shell is abutted against one end, far away from the frame body, of the abutting pipe, and a second thread passing hole for passing the suture is formed in the fixing shell;

the second cutting shell is arranged in the fixed shell, a second cutting hole and a second limiting hole are formed in the second cutting shell, the traction part penetrates through the second limiting hole, the clamping part of the traction part can interfere with the second cutting shell, the suture penetrates through the second cutting hole, and the second cutting hole and the second thread passing hole are correspondingly arranged and communicated; and

the second extruded article, the second extruded article sets up in the set casing, and be located the second cut off the shell with sew up between the nail, the traction portion passes the second extruded article, be provided with on the second extruded article with joint end complex third joint structure, and when satisfying the third preset condition, the joint end can be followed deviate from in the third joint structure.

6. An endoscopic screw release device according to claim 5,

the second extrusion piece is provided with a second through hole penetrating through the second extrusion piece;

the traction part penetrates through the second through hole, the clamping part can interfere with the second extrusion part, and cutting seams are respectively arranged on the side walls of the second through hole, which are oppositely arranged;

the third latching structure includes the slit and the second through hole.

7. An endoscopic screw release device according to claim 2,

the pulling piece is rotatably arranged on the frame body through threads.

8. An endoscopic screw release device according to claim 7,

the frame body is provided with a threaded rod, the pulling piece is provided with a threaded hole, and the threaded rod is screwed into the threaded hole.

9. An endoscopic screw release device according to claim 7,

the frame body is provided with a rotating cavity, the cavity wall of the rotating cavity is provided with an internal thread, the outer surface of the pulling part is provided with an external thread, and the internal thread is connected with the external thread in a rotating mode.

10. An endoscopic screw release device according to claim 1,

the outer pipe comprises a fixed pipe and a rotating pipe, and the rotating pipe is rotatably connected with the fixed pipe; a plurality of suturing nails are arranged in the rotating tube, and the fixed tube is connected with the rack body;

the shape surrounded by the inner wall surface of the rotating tube is non-circular, the outer surface of the abutting end is matched with the inner wall surface of the rotating tube, and the outer surface of the suturing nail is matched with the inner wall surface of the rotating tube; the pushing piece can drive the rotating pipe to rotate around the axis of the outer pipe relative to the fixed pipe.

11. An endoscopic screw release device according to claim 1,

two elastic pieces are symmetrically arranged on the sewing nail, the elastic pieces are pressed against the inner wall of the outer tube, and the elastic pieces are the limiting parts.

12. An endoscopic screw release device according to claim 2,

the suturing nail comprises a base body and a spiral needle head, the spiral needle head is arranged at one end of the base body, the first clamping structure is arranged at the other end of the base body, the base body is provided with the center hole, and the suturing thread and the pulling piece penetrate through the center hole.

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