Spiral anchor line suturing device for endoscope

Abstract

The invention discloses an endoscope spiral anchor line suturing device which is characterized in that a matching structure and an axial locking structure are controlled by a control part to be locked and limited, and in addition, the matching structure and a circumferential limiting structure are limited, so that a suturing nail is fixedly connected with a rotating part; then the suturing nails are pushed out of the nail bin through the rotating piece and enter the endoscope working channel / pipeline and the human body cavity; when the suturing nail reaches a surgical site to be sutured, the rotating piece is controlled to drive the suturing nail to rotate, and the puncture part of the suturing nail is anchored into the corresponding human tissue; in the operation process, the nail bin is located outside the body or located on the non-bending section in the endoscope working channel / pipeline, and the rotating piece and the suturing nail penetrate through the bending section at the front end of the endoscope working channel / pipeline to enter the human body operation part, so that the suturing device can better conform to bending of an endoscope and can be operated in a narrow space; therefore, the product can be flexibly sewn in the human body cavity.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an endoscopic spiral anchor suture device. Background Art

[0002] The flexible endoscopic suturing technology is a very important minimally invasive technology. In the prior art, suturing with staples combined with sutures is a new method. This technology uses staples to anchor the sutures to the tissues, and then tightens the sutures to drive the tissues to move, so as to squeeze the tissues together to suture the human tissue defects. Since staples can drill into the tissues and are not affected by the hardness and thickness of the tissues, they are particularly advantageous for suturing large defects, defects that are difficult to suture, hard tissues, and special minimally invasive surgeries. However, the prior art has the following problems:

[0003] First, the single-shot suture staple technique is not efficient. Only one suture staple can be anchored in one operation, and the instrument needs to be repeatedly withdrawn from the human body to install the suture staple.

[0004] Second, for the continuous suture staple technology, there is no need to repeatedly withdraw the endoscope to install the suture staples, and the operation is efficient. However, since multiple suture staples are stacked on the front end of the device, the outer diameter is large and the curvature is poor, which cannot conform to the curvature of the front end of the endoscope working channel / pipe, affecting the operation effect and greatly reducing its application scenarios. Summary of the invention

[0005] The embodiment of the present application provides an endoscopic spiral anchor suture device, which includes: an outer sleeve; a nail magazine, the nail magazine has a accommodating cavity, and a first limiting structure is arranged on the accommodating cavity; a suture nail, the suture nail is arranged in the accommodating cavity, the suture nail includes a needle body and a puncture part, the needle body is provided with a through hole penetrating therethrough, the needle body is provided with an axial locking structure and a circumferential limiting structure, and the needle body is also provided with a second limiting structure that matches the first limiting structure; a suture, the suture is connected to the suture nail, and the suture nail can slide relative to the suture; a rotating member, the rotating member passes through the outer sleeve and is inserted into the nail magazine, and the rotating member can rotate relative to the outer sleeve; a matching structure, the matching structure can be locked with the axial locking structure and limited with the circumferential limiting structure; and a control member, the control member matches with the matching structure, and the control member is configured to control the matching structure to be locked or separated from the axial locking structure.

[0006] In some embodiments, the mating structure includes a first elastic member and a second elastic member; the axial locking structure includes a limiting protrusion and a limiting portion, and the limiting protrusion is arranged on the hole wall of the through hole; the first elastic member can cooperate with the limiting protrusion to limit the movement of the rotating member relative to the needle body along a first direction, and the second elastic member can cooperate with the limiting portion to limit the movement of the rotating member relative to the needle body along a second direction, and the first direction is opposite to the second direction.

[0007] In some embodiments, the mating structure is connected to the rotating member, the first elastic member includes a first piece and a second piece, one end of the first piece is connected to one end of the second piece, the first piece and the second piece extend along the axial direction of the through hole, and there is a gap between the first piece and the second piece; the control member is configured to control the first piece and the second piece to be respectively engaged with the limiting protrusion.

[0008] In some embodiments, the control member includes a push-pull cable and a control part, the control part is arranged between the first piece and the second piece, the push-pull cable is connected to the control part, and the push-pull cable can move along the axial direction of the rotating member; the push-pull cable is configured to drive the control part to move so as to increase the width of the gap and enable the first piece and the second piece to be engaged with the limiting protrusion.

[0009] In some embodiments, the aperture of the through hole adjacent to one end of the rotating member is smaller than the aperture of the through hole away from the end of the rotating member, and the aperture of the narrowest part of the through hole satisfies the following formula: Dmin<T1+T2+W; Dmin is the aperture of the narrowest part of the through hole, T1 is the thickness of the first sheet in the radial direction of the through hole, T2 is the thickness of the second sheet in the radial direction of the through hole, and W is the length between the two contact points of the control part with the first sheet and the second sheet in the radial direction of the through hole.

[0010] In some embodiments, a first engaging portion is provided on the first sheet, and a second engaging portion is provided on the second sheet; the first engaging portion and the second engaging portion extend radially along the through hole, and the first engaging portion and the second engaging portion are arranged opposite to each other; the first engaging portion and the second engaging portion can be engaged with the limiting protrusion respectively.

[0011] In some embodiments, the first engaging portion is an engaging protrusion protruding from the first sheet surface, and the second engaging portion is an engaging protrusion protruding from the second sheet surface; or the second engaging portion is an engaging sheet, and the second engaging portion is an engaging sheet.

[0012] In some embodiments, the limiting portion is a first step surface arranged on the hole wall of the through hole, and the setting position of the first step surface is relative to the position of the limiting protrusion; the second elastic member and the first elastic member are the same component; the other end of the first sheet and the other end of the second sheet can be pressed against the first step surface respectively.

[0013] In some embodiments, the endoscopic spiral anchor suture device further includes: a connecting tube, one end of which is connected to the rotating member, and the other end of which is connected to the matching structure.

[0014] In some embodiments, the second elastic member includes a connecting portion and a clamping portion, the connecting portion is connected to one end of the rotating member, and the clamping portion protrudes from the outer surface of the rotating member along the radial direction of the through hole; the limiting portion is a first limiting surface, and the first limiting surface is arranged at one end of the needle body adjacent to the rotating member, and the clamping portion can be pressed against the first limiting surface.

[0015] In some embodiments, the circumferential limiting structure is a first limiting groove, which is arranged at one end of the needle body adjacent to the rotating member, and the clamping portion of the second elastic member can be clamped into the first limiting groove; the first limiting surface is the bottom surface of the first limiting groove.

[0016] In some embodiments, the mating structure also includes: a connecting tube, one end of which is connected to the rotating member, and the other end of which is connected to the first elastic member; the connecting portion of the second elastic member is connected to the connecting tube, and the clamping portion protrudes from the outer surface of the connecting tube.

[0017] In some embodiments, a mounting hole is provided on the connecting tube, and the mounting hole penetrates the connecting tube in a radial direction of the connecting tube. The setting position of the clamping portion corresponds to the position of the mounting hole, and the clamping portion protrudes from the outer surface of the connecting tube through the mounting hole.

[0018] In some embodiments, the circumferential limiting structure is a second limiting groove, the second limiting groove is arranged on the hole wall of the through hole, and the first elastic member can be inserted into the second limiting groove.

[0019] In some embodiments, the matching structure also includes a mounting tube, which is connected to the rotating member, and two limiting holes are provided on the mounting tube, and the limiting holes penetrate the tube wall of the mounting tube along the radial direction of the mounting tube; the first elastic member is connected to the control member, and the first elastic member includes two deformation plates, and the two deformation plates correspond to the two limiting holes respectively, and can protrude from the limiting holes, and the deformation plates can interfere with the hole walls of the limiting holes; the part of the deformation plate protruding from the limiting hole can interfere with the limiting protrusion, and the hole wall of the limiting hole and the limiting protrusion can be locked with the deformation plate; the control member is configured to control the deformation plate to extend out of the limiting hole or the deformation plate to retract.

[0020] In some embodiments, the second elastic member and the first elastic member are the same component; the limiting portion is a second step surface arranged on the hole wall of the through hole, the setting position of the second step surface corresponds to the position of the limiting protrusion, and the part of the deformation piece protruding from the limiting hole can be pressed against the second step surface.

[0021] In some embodiments, the second elastic member is a snap-in piece, which is disposed on the mounting tube and is inclined relative to the mounting tube, and the snap-in piece extends along the axial direction of the mounting tube in a direction away from the mounting tube; the limiting portion is a second limiting surface disposed on one end of the needle body adjacent to the rotating member, and the snap-in piece can be pressed against the second limiting surface.

[0022] In some embodiments, in the radial direction of the through hole, the cross-sectional shape of the through hole is non-circular, and the circumferential limiting structure is the portion of the through hole whose cross-sectional shape is non-circular; in the radial direction of the mounting tube, the shape enclosed by the outer surface of the mounting tube is adapted to the shape of the through hole, and the mounting tube interferes with the through hole.

[0023] In some embodiments, the control member is a push-pull cable, the push-pull cable is connected to the first elastic member, and the push-pull cable can move along the axial direction of the rotating member.

[0024] In some embodiments, the nail magazine is fixedly connected to the end of the outer sleeve; or the nail magazine is disposed in a channel of the outer sleeve and fixedly connected to the outer sleeve; or the nail magazine is disposed on the outside of the outer sleeve.

[0025] In some embodiments, the first limiting structure is a one-way card; the second limiting structure is a one-way card slot provided on the outer surface of the needle body.

[0026] In some embodiments, the rotating member is an elastic tube, and a pipe of the elastic tube through which the control member passes cooperates with the matching structure.

[0027] In some embodiments, the rotating member is an elastic solid cable, and the solid cable is arranged side by side with the control member.

[0028] In some embodiments, the control member passes through a connecting tube or a mounting tube of the matching structure to match with the matching structure.

[0029] In some embodiments, an elastic support member is provided on the control member, and the elastic support member is supported between the control member and a support surface, and the support surface is located on the rotating member or the matching structure; the elastic support member is compressed when the control member moves axially along the through hole.

[0030] Compared with the prior art, the above technical solution has the following advantages:

[0031] The matching structure is controlled by the control member to be locked and limited with the axial locking structure, and the matching structure is limited with the circumferential limiting structure, so that the suture nail is fixedly connected to the rotating member; then a suture nail is pushed out of the nail magazine by the rotating member, and the suture nail enters the endoscopic working channel / pipeline used by the endoscope and enters the human body cavity under the drive of the rotating member; when the suture nail reaches the position of the defect wound to be sutured, the rotating member is controlled to drive the suture nail to rotate, and the puncture part of the suture nail is anchored into the corresponding human tissue; after the suture nail is fixed, the matching structure is controlled by the control member to separate from the axial locking structure, and the matching structure is separated from the circumferential limiting structure, so that the suture nail is separated from the rotating member; then, the rotating member and the control member are dragged, and the rotating member withdraws with the matching structure and enters the nail magazine, and the next suture nail can be fixedly connected to the rotating member through the control member; repeat the above steps. The above operation anchors multiple suture staples on the corresponding human tissues, and then tightens the multiple suture staples through sutures, and the multiple suture staples drive the human tissues around the defective wound to tighten, so as to suture the defective wound; in the above suturing process, multiple suture staples are installed in the staple magazine, which can be located outside the body or in the non-bending section of the endoscopic working channel / pipeline, and the suture staples only need to be sent into the human body through the endoscopic working channel / pipeline through the rotating member, that is, the space of the endoscopic working channel / pipeline and the human body cavity space required during the suturing process are small, so that the product can be more adaptable to the operation in the limited endoscopic working channel / pipeline and human body cavity space; when the staple magazine is located outside the body or in the non-bending section of the endoscopic working channel / pipeline, the staple magazine will not interfere with the bending of the front section of the endoscope and enable the device to conform well to the bending of the front section of the endoscope, which makes the operation more flexible and adaptable to a wider range of scenarios. In short, the structure of the above-mentioned endoscopic spiral anchor line suturing device, on the one hand, can realize multiple bursts of suture staples, improve the operating efficiency, and on the other hand, the setting of multiple suture staples does not affect the operating effect of the device itself, and can better adapt to various surgical scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0033] Figure 1 A partial cross-sectional structural schematic diagram of a first embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0034] Figure 2 for Figure 1 The enlarged structural diagram of the middle A part;

[0035] Figure 3 for Figure 2 A structural schematic diagram of another perspective of the structure shown;

[0036] Figure 4 A schematic diagram of the exploded structure of a first embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0037] Figure 5 A schematic diagram of the partial structure of a first embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0038] Figure 6 A schematic diagram of a partial cross-sectional structure of a suture staple being pushed out of a staple cartridge in a first embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0039] Figure 7 for Figure 6 A schematic diagram of the enlarged structure of the middle B part;

[0040] Figure 8 A schematic diagram of a partial cross-sectional structure of a first embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application, in which a suture staple and a matching structure are separated;

[0041] Fig. 9 for Figure 8 The enlarged structural diagram of the middle C part;

[0042] Fig.10 A schematic cross-sectional structural diagram of a nail magazine provided in some embodiments of the present application;

[0043] Fig.11 for Figure 4 A schematic diagram of the structure of the suture staple shown in ;

[0044] Fig.12 for Fig.11 A schematic cross-sectional view of the suture staple shown;

[0045] Fig.13 A partial cross-sectional structural schematic diagram of a second embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0046] Fig.14 for Fig.13 The enlarged structural diagram of the middle D part;

[0047] Fig.15 for Fig.14 A structural schematic diagram of another perspective of the structure shown;

[0048] Fig.16 A schematic diagram of the exploded structure of a second embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0049] Fig.17 A partial structural schematic diagram of a second embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0050] Fig.18 A partial cross-sectional structural diagram of a suture staple being pushed out of a staple cartridge in a second embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application

[0051] Fig.19 A schematic diagram of a partial cross-sectional structure of a second embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application, in which a suture staple and a matching structure are separated;

[0052] Fig. 20 for Fig.13 A schematic diagram of the structure of the suture staple shown in ;

[0053] Fig.21 A partial cross-sectional structural schematic diagram of a third embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0054] Fig. 22 A schematic diagram of the structure of a suture staple in a third embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0055] Fig.23 A partial cross-sectional structural schematic diagram of a fourth embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0056] Fig.24 for Fig.23 The enlarged structural diagram of the middle E part;

[0057] Fig.25 for Fig.24 A structural schematic diagram of another perspective of the structure shown;

[0058] Fig.26 A schematic diagram of the exploded structure of a fourth embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0059] Fig. 27 A partial structural schematic diagram of a fourth embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0060] Fig.28 A partial cross-sectional structural diagram of a suture staple being pushed out of a staple cartridge in a fourth embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application

[0061] Fig.29 A schematic diagram of a partial cross-sectional structure of a fourth embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application, in which a suture staple and a matching structure are separated;

[0062] Fig.30 A schematic diagram of the positional relationship between the staple cartridge of the endoscopic spiral anchor suture device and the endoscope working channel / pipeline during use of the device provided in some embodiments of the present application;

[0063] Fig.31 A partial cross-sectional structural schematic diagram of a fifth embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0064] Fig.32 for Fig.31 The enlarged structural diagram of the middle F part;

[0065] Fig.33 for Fig.32 A structural schematic diagram of another perspective of the structure shown;

[0066] Fig.34 A schematic diagram of the exploded structure of a fifth embodiment of the endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0067] Fig.35 A partial structural schematic diagram of a fifth embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0068] Fig.36 A partial cross-sectional structural diagram of a suture staple being pushed out of a staple cartridge in a fifth embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application

[0069] Fig.37 A partial cross-sectional structural schematic diagram of the suture staple and the matching structure separated in a fifth embodiment of the endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0070] Fig.38 for Fig.34 A schematic diagram of the structure of the suture staple shown in ;

[0071] Fig.39 A partial cross-sectional structural schematic diagram of a sixth embodiment of an endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0072] Fig.40 A partial cross-sectional structural schematic diagram of a seventh embodiment of the endoscopic spiral anchor suture device provided in some embodiments of the present application;

[0073] Fig.41 A partial cross-sectional structural schematic diagram of a first embodiment of the cooperation between a rotating member and a control member provided in some embodiments of the present application;

[0074] Fig.42 A partial cross-sectional structural schematic diagram of a second embodiment of the cooperation between the rotating member and the control member provided in some embodiments of the present application;

[0075] Fig.43 A partial cross-sectional structural schematic diagram of a third embodiment of the cooperation between a rotating member and a control member provided in some embodiments of the present application.

[0076] The reference numerals are as follows:

[0077] 10. Outer sleeve;

[0078] 20. Nail magazine; 21. Accommodating cavity; 22. First limiting structure;

[0079] 30. Suture nail; 31. Needle body; 32. Puncture part; 33. Through hole; 34. Second limiting structure; 35. First limiting surface; 36. Second limiting surface; 37. Connecting ring; 371. Wire hole;

[0080] 40. Axial locking structure; 41. Position limiting protrusion; 42. Position limiting portion; 421. First step surface; 422. Second step surface;

[0081] 50. circumferential limiting structure; 51. first limiting groove; 52. second limiting groove;

[0082] 60. Suture;

[0083] 70. Rotating member; 71. Elastic tube; 72. Solid cable;

[0084] 80, matching structure; 81, first elastic member; 811, first sheet; 812, second sheet; 813, gap; 814, first clamping portion; 815, second clamping portion; 816, deformation sheet; 82, second elastic member; 821, connecting portion; 822, clamping portion; 823, clamping sheet; 83, connecting tube; 831, mounting hole; 832, notch; 84, mounting tube; 841, limiting hole;

[0085] 90. Control element; 91. Push-pull cable; 92. Control unit;

[0086] 100. Elastic support member;

[0087] 200. Endoscope; 201. Endoscope working channel / pipe; 211. Non-bent section; 212. Bent section; 300. Endoscope spiral anchor suture device. DETAILED DESCRIPTION

[0088] The present application is further described in detail below through the accompanying drawings and embodiments. Through these descriptions, the characteristics and advantages of the present application will become clearer and more specific.

[0089] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field to which this application belongs; the terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions.

[0090] The "embodiment" mentioned in this application means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0091] The special word "exemplary" mentioned in this application means "used as an example, embodiment or illustrative". Any embodiment described as "exemplary" is not necessarily interpreted as being superior or better than other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0092] In the description of this application, the technical terms "first", "second", etc. are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary and secondary relationship of the indicated technical features.

[0093] In the description of this application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0094] In the description of the present application, “plurality” means two or more (including two), unless otherwise clearly and specifically defined.

[0095] In the description of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0096] The technical solutions of the embodiments of the present application are described in detail below in conjunction with the accompanying drawings. The technical features involved in the different implementation modes of the present application described below can be combined with each other as long as there is no conflict between them.

[0097] like Figures 1 to 43 As shown, the endoscopic spiral anchor suture device 300 provided in the present application includes: an outer sleeve 10, a staple cartridge 20, a suture staple 30, a suture 60, a rotating member 70, a matching structure 80 and a control member 90.

[0098] The outer sleeve 10 is used for the operator to hold, so as to facilitate the operator to operate the endoscopic spiral anchor suture device 300 .

[0099] The staple cartridge 20 has a receiving cavity 21, and a first limiting structure 22 is provided on the receiving cavity 21 (a first limiting structure 22 is provided on the cavity wall of the receiving cavity 21). In one embodiment of the present application, the end of the staple cartridge 20 is fixedly connected to the end of the outer sleeve 10, that is, the staple cartridge 20 is located at one end of the outer sleeve 10. The ends of the staple cartridge 20 and the outer sleeve 10 are fixedly connected, which can reduce the outer diameter of the entire product, and is more suitable for use with endoscopes of small channels, and for use in scenes of surgical sites with limited operating space. When the staple cartridge needs to pass through the endoscope working channel / pipeline, it can avoid the staple cartridge from scratching the inner wall of the endoscope working channel / pipeline, and has higher requirements for its material and surface smoothness. In another embodiment of the present application, the staple cartridge 20 is arranged in the pipeline of the outer sleeve 10 and is fixedly connected to the outer sleeve 10. In this embodiment, the outer surface of the outer sleeve 10 is relatively smooth, avoiding the risk of the staple cartridge 20 directly contacting the endoscope working channel / pipeline 201 and scratching the endoscope. In another embodiment of the present application, the staple cartridge 20 is arranged on the outside of the outer sleeve 10, that is, there is no connection between the staple cartridge 20 and the outer sleeve 10. During the suturing process, the staple cartridge is located in the endoscope working channel / pipeline or outside the human body. This method simplifies the structure of the device so that the outer diameter of the device part entering the endoscope working channel / pipeline is small, thereby not affecting the flexibility of operation; after releasing a suture staple, it is necessary to withdraw from the endoscope working channel / pipeline and install a new suture staple outside the human body. In addition, since a plurality of suture staples are stacked in sequence inside the staple cartridge, it is only necessary to pull the rotating member 70 and the matching structure 80 into the staple cartridge to achieve locking with the suture staple, and the assembly effect is relatively high. This is better than some prior art methods of installing suture staples one by one outside the body. The matching relationship between the staple cartridge 20 and the outer sleeve 10 can be selected by technicians in this field according to specific requirements and application scenarios.

[0100] The suture staple 30 is arranged in the accommodating cavity 21 (the number of suture staples 30 is multiple), and the suture staple 30 includes a needle body 31 and a puncture portion 32. The needle body 31 is provided with a through hole 33 passing through it, and the needle body 31 is provided with an axial locking structure 40 and a circumferential limiting structure 50. The needle body 31 is also provided with a second limiting structure 34 that cooperates with the first limiting structure 22. In a specific embodiment of the present application, the first limiting structure 22 is a one-way card, the first limiting structure 22 is similar to a barb structure, the second limiting structure 34 is a one-way card slot provided on the outer surface of the needle body 31, the one-way card is bent toward the inside of the staple cartridge 20, and is tilted relative to the staple cartridge 20, the one-way card slot has an opening, a slot bottom provided opposite to the opening, and a side wall between the opening and the slot bottom, part of the side wall is an inclined surface, and the surface of the side wall opposite to the inclined surface is an interference surface, the interference surface can interfere with the one-way card, and the inclined surface cooperates with the one-way card so that the suture staple 30 can only move forward and be pushed out of the staple cartridge 20 from the outlet of the staple cartridge 20, that is, the suture staple 30 cannot escape from the inlet of the staple cartridge 20. Specifically, when the suture staple 30 moves toward the inlet, the one-way card moves along the inclined surface so that the one-way card escapes from the one-way card slot, and when the suture staple 30 moves toward the outlet, the one-way card presses against the interference surface so that the suture staple 30 interferes with the one-way card so that the suture staple 30 moves relative to the staple cartridge 20.

[0101] The suture 60 is connected to the suture staple 30, and the suture staple 30 can slide relative to the suture 60. In one embodiment of the present application, the suture 60 is rotatably connected to the suture staple 30. Specifically, the suture staple 30 further includes a connecting ring 37, which is disposed on the needle body 31 and can rotate relative to the needle body 31. The connecting ring 37 is also provided with a thread hole 371, and the suture 60 is connected to the suture staple 30 through the thread hole 371; in the process of the rotating member 70 anchoring the suture staple 30 in the tissue, the connecting ring 37 can rotate relative to the needle body 31, and the suture 60 will not rotate with the needle body 31, so that the suture 60 will not be entangled with the suture staple 30 and the rotating member 70, so that the operation proceeds smoothly.

[0102] The rotating member 70 passes through the outer sleeve 10 and is inserted into the staple cartridge 20, and the rotating member 70 can rotate relative to the outer sleeve 10. In a specific embodiment of the present application, the rotating member 70 can be bent and deformed, that is, the rotating member 70 is an elastic rotating member 70. Since the human body cavity is not linear and is relatively complex, when the rotating member 70 enters, the rotating member 70 can be deformed along with the shape of the human body cavity to better perform suturing.

[0103] The matching structure 80 can be locked with the axial locking structure 40 and limited with the circumferential limiting structure 50 .

[0104] The control member 90 cooperates with the matching structure 80 , and the control member 90 is configured to control the matching structure 80 to be locked or separated from the axial locking structure 40 .

[0105] The operation process of the endoscopic spiral anchor suture device 300 provided in the present application is as follows:

[0106] The operator pulls the matching structure 80 into the staple cartridge to install the suture staple, and controls the matching structure 80 to lock and limit with the axial locking structure 40 through the control member 90, so that the suture staple 30 cannot move relative to the rotating member 70 along the axial direction of the through hole 33 (i.e., the axial movement of the suture staple 30 is limited, and the axial direction refers to the direction along the central axis of the through hole 33, that is, the direction common to the central axis); in addition, the matching structure 80 is limited with the circumferential limiting structure 50, so that the suture staple 30 cannot move relative to the rotating member 70 along the circumference of the through hole 33 (i.e., the circumferential movement of the suture staple 30 is limited, and the circumferential direction refers to the direction around the central axis of the through hole 33). The above-mentioned limiting makes it impossible for the suture staple 30 to move circumferentially and axially relative to the rotating member 70, so that the suture staple 30 and the rotating member 70 are completely limited, so that the suture staple 30 and the rotating member 70 are fixedly connected. Then, the rotating member 70 is pushed, and the rotating member 70 brings a suture staple 30 out of the exit of the staple magazine 20, and passes through the endoscope working channel / pipeline 201 of the endoscope 200 into the human body cavity. After the rotating member 70 brings the suture staple 30 to the location of the defect wound to be sutured, the rotating member 70 is controlled to drive the suture staple 30 to rotate, and the puncture portion 32 of the suture staple 30 is rotated and anchored into the corresponding human tissue. After the suture staple 30 is rotated and fixed in place, the matching structure 80 is controlled by the control member 90 to separate from the axial locking structure 40; in addition, the matching structure 80 is separated from the circumferential limiting structure 50, so that the suture staple 30 is separated from the rotating member 70. Afterwards, the rotating member 70 and the control member 90 are dragged, and the rotating member 70 brings the matching structure 80 into the staple magazine 20 to match with the next suture staple 30; afterward, the next suture staple 30 can be fixedly connected to the rotating member 70 through the control member 90. Repeat the above operation to anchor the plurality of suture staples 30 on the corresponding human tissues, and then tighten the plurality of suture staples 30 through the sutures 60. The plurality of suture staples 30 drive the human tissues around the defect wound to be tightened, so as to suture the defect wound.

[0107] The endoscopic spiral anchor suture device 300 provided in the present application has a suture cartridge 20 located outside the body or not located at the curved section 212 (eg, Fig.30As shown, the staple cartridge 20 is located in the non-bending section 211 of the endoscope working channel / pipeline 201, so it will not interfere with the suturing process. The suturing can be performed by simply delivering the suturing staples 30 into the human body through the rotating member 70. In addition, the above structure, on the one hand, can realize multiple bursts of suturing staples, thereby improving the operating efficiency. On the other hand, the outer diameter will not be increased due to the multiple suturing staples, nor will the compliance of the device with the bending of the endoscope be reduced, that is, the outer diameter of the device is small and can well comply with the curved section of the front section of the endoscope, thereby increasing the flexibility of product operation.

[0108] like Fig.41 As shown, in one embodiment of the present application, the rotating member 70 is an elastic tube 71 , and the channel of the elastic tube 71 through which the control member 90 passes cooperates with the matching structure 80 .

[0109] The above structure makes the rotating member 70 partially overlap with the control member 90, thereby reducing the volume of the product and making it easier for the operator to hold and operate. In addition, the elastic tube 71 can protect the control member 90.

[0110] like Fig.42 and Fig.43 As shown, in one embodiment of the present application, the rotating member 70 is a solid elastic cable 72, and the solid cable 72 is arranged side by side with the control member 90. Alternatively, the rotating member 70 is a solid elastic soft shaft, and the solid soft shaft and the control member 90 are arranged side by side.

[0111] The above structure makes the rotating member 70 an elastic solid structure, so that the rotating member 70 has greater mechanical strength, ensuring the reliability of the use of the rotating member 70, and having sufficient force to anchor the suture nail 30 into the interior of the tissue to ensure smooth operation.

[0112] like Fig.41 As shown, in one embodiment of the present application, an elastic support member 100 is provided on the control member 90 , and the elastic support member 100 is supported between the control member 90 and a support surface, and the support surface is located on the rotating member 70 or the matching structure 80 .

[0113] The elastic supporting member 100 is compressed when the control member 90 moves along the axial direction of the through hole 33 .

[0114] When the control member 90 controls the matching structure 80 to limit the axial locking structure 40, the elastic support member 100 stores force. When the control member 90 controls the matching structure 80 to separate from the axial locking structure 40, the elastic support member 100 releases the stored elastic force, thereby helping the control member 90 to return to the initial position, which ensures the reliability of the operation.

[0115] Several embodiments of the endoscopic spiral anchor suture device 300 are described in detail below with reference to the accompanying drawings.

[0116] Embodiment 1

[0117] like Figures 1 to 12 As shown, the endoscopic spiral anchor suture device 300 provided in the present application includes: an outer sleeve 10, a staple cartridge 20, a suture staple 30, a suture 60, a rotating member 70, a matching structure 80 and a control member 90.

[0118] The nail magazine 20 has a receiving cavity 21 , and a first limiting structure 22 is arranged on the receiving cavity 21 .

[0119] The suture staple 30 is arranged in the accommodating cavity 21, and the suture staple 30 includes a needle body 31 and a puncture portion 32. The needle body 31 is provided with a through hole 33 passing through it, and the needle body 31 is provided with an axial locking structure 40 and a circumferential limiting structure 50. The needle body 31 is also provided with a second limiting structure 34 that cooperates with the first limiting structure 22.

[0120] The suture 60 is connected to the suture staple 30 , and the suture staple 30 is slidable relative to the suture 60 .

[0121] The rotating member 70 passes through the outer sleeve 10 and is inserted into the nail magazine 20 . The rotating member 70 can rotate relative to the outer sleeve 10 .

[0122] The matching structure 80 can be locked with the axial locking structure 40 and limited with the circumferential limiting structure 50 .

[0123] The control member 90 cooperates with the matching structure 80 , and the control member 90 is configured to control the matching structure 80 to be locked or separated from the axial locking structure 40 .

[0124] The matching structure 80 includes a first elastic member 81 and a second elastic member 82 .

[0125] The axial locking structure 40 includes a limiting protrusion 41 and a limiting portion 42 . The limiting protrusion 41 is disposed on the hole wall of the through hole 33 .

[0126] The first elastic member 81 can cooperate with the limiting protrusion 41 to limit the movement of the rotating member 70 relative to the needle body 31 along the first direction. The second elastic member 82 can cooperate with the limiting portion 42 to limit the movement of the rotating member 70 relative to the needle body 31 along the second direction. The first direction is opposite to the second direction.

[0127] The matching structure 80 is connected to the rotating member 70, and the first elastic member 81 includes a first piece 811 and a second piece 812. One end of the first piece 811 is connected to one end of the second piece 812. The first piece 811 and the second piece 812 extend along the axial direction of the through hole 33, and there is a gap 813 between the first piece 811 and the second piece 812.

[0128] The control member 90 is configured to control the first piece 811 and the second piece 812 to be respectively engaged with the limiting protrusion 41 .

[0129] The control member 90 includes a push-pull cable 91 and a control portion 92 . The control portion 92 is disposed between the first piece 811 and the second piece 812 . The push-pull cable 91 is connected to the control portion 92 . The push-pull cable 91 can move along the axial direction of the rotating member 70 .

[0130] The push-pull cable 91 is configured to drive the control part 92 to move, so that the width of the gap 813 becomes larger, and the first piece 811 and the second piece 812 are engaged with the limiting protrusion 41 .

[0131] The aperture of the through hole 33 at one end close to the rotating member 70 is smaller than the aperture of the through hole 33 at one end away from the rotating member 70. The aperture of the narrowest part of the through hole 33 satisfies the following formula:

[0132] Dmin<T1+T2+W.

[0133] Dmin is the aperture of the narrowest part of the through hole 33, T1 is the thickness of the first sheet 811 in the radial direction of the through hole 33, T2 is the thickness of the second sheet 812 in the radial direction of the through hole 33, and W is the length between the two contact points of the control part 92 with the first sheet 811 and the second sheet 812 in the radial direction of the through hole 33.

[0134] The limiting portion 42 is a first step surface 421 disposed on the hole wall of the through hole 33 , and the first step surface 421 is disposed at a position corresponding to the position of the limiting protrusion 41 .

[0135] The second elastic member 82 and the first elastic member 81 are the same component.

[0136] The other end of the first piece 811 and the other end of the second piece 812 can be pressed against the first step surface 421 respectively.

[0137] The circumferential limiting structure 50 is a second limiting groove 52 , which is disposed on the hole wall of the through hole 33 . The first elastic member 81 can be inserted into the second limiting groove 52 for limiting the position, so that the rotating member 70 can drive the suture staple 30 to rotate together.

[0138] The operation process of the endoscopic spiral anchor suture device 300 is as follows:

[0139] The operator drags the push-pull cable 91, and the push-pull cable 91 drives the control part 92 to move so that the width of the gap 813 becomes larger. Since the sum of the thicknesses of the control part 92, the first sheet 811, and the second sheet 812 is greater than the aperture of the narrowest part of the through hole 33 (the narrowest part of the through hole 33 is located at the position where the limiting protrusion 41 is provided on the hole wall), the push-pull cable 91 drives the control part 92 and the first elastic member 81 to interfere with the limiting protrusion 41. In this process, the other end of the first sheet 811 and the other end of the second sheet 812 are respectively pressed against the first step surface 421, that is, the end of the first elastic member 81 is pressed against the first step surface 421. In addition, the operator drives the first elastic member 81 (the second elastic member 82) to rotate through the rotating member 70. When the first piece 811 and the second piece 812 are respectively inserted into the second limiting groove 52, the groove wall of the second limiting groove 52 arranged along the axial direction of the through hole 33 interferes with the first piece 811 and the second piece 812, so that the suture staple 30 cannot move relative to the rotating member 70 along the circumferential direction of the through hole 33. Through the above operation, the suture staple 30 and the rotating member 70 are completely limited, so that the suture staple 30 and the rotating member 70 are fixedly connected. Then, the rotating member 70 and the control member 90 are pushed, and the rotating member 70 is pushed out of the outlet of the staple magazine 20 with a suture staple 30 and enters the human body cavity. When the rotating member 70 arrives at the location of the defect wound to be sutured with the suture staple 30, the rotating member 70 is controlled to drive the suture staple 30 to rotate, and the puncture portion 32 of the suture staple 30 is rotated and anchored into the corresponding human tissue. After the suture staple 30 is rotated and fixed in place, the operator pushes the push-pull cable 91, and the push-pull cable 91 drives the control part 92 to withdraw from the gap, and at the same time drags the rotating member 70 and the control member 90. Since the maximum thickness of the control part 92 and the sum of the thickness of the first piece 811 and the second piece 812 are smaller than the aperture of the narrowest part of the through hole 33, the first elastic member 81 and the control part 92 can be withdrawn from the through hole 33 one by one. In this process, the first piece 811 and the second piece 812 slide out of the second limiting groove 52, so that the suture staple 30 is separated from the rotating member 70. Afterwards, the rotating member 70 enters the staple magazine 20 again with the matching structure 80 to match with the new suture staple 30. Afterwards, repeat the above operation to make the next suture staple 30 fixedly connected to the rotating member 70, anchor multiple suture staples 30 on the corresponding human tissue, and then tighten the multiple suture staples 30 through the suture 60, and the multiple suture staples 30 drive the human tissue around the defect wound to tighten, so as to suture the defect wound.

[0140] In one embodiment of the present application, the matching structure 80 further includes: a connecting pipe 83 .

[0141] One end of the connecting tube 83 is connected to the rotating member 70 , and the other end of the connecting tube 83 is connected to the first elastic member 81 .

[0142] The connection tube 83 facilitates the connection between the first elastic member 81 and the rotating member 70 .

[0143] Embodiment 2

[0144] like Figures 13 to 20 As shown, the structure of the second embodiment is substantially the same as that of the first embodiment, with the specific difference that the first elastic member 81 and the second elastic member 82 are two separate components, and the suturing staple 30 is moved in the axial direction by limiting the first elastic member 81 and the second elastic member 82 in two axial directions.

[0145] Specifically, the second elastic member 82 includes a connecting portion 821 and a clamping portion 822, wherein the connecting portion 821 is connected to one end of the rotating member 70, and the clamping portion 822 protrudes from the outer surface of the rotating member 70 along the radial direction of the through hole 33. In one embodiment of the present application, the connecting portion 821 of the second elastic member 82 is connected to the connecting tube 83, and the clamping portion 822 protrudes from the outer surface of the connecting tube 83. In another embodiment of the present application, a mounting hole 831 is provided on the connecting tube 83, and the mounting hole 831 penetrates the connecting tube 83 along the radial direction of the connecting tube 83. The setting position of the clamping portion 822 corresponds to the position of the mounting hole 831, and the clamping portion 822 protrudes from the outer surface of the connecting tube 83 through the mounting hole 831. The mounting hole 831 plays a role of giving way. When the second elastic member 82 passes through the through hole 33, the clamping portion 822 is squeezed and received in the mounting hole 831. After the squeezing force is removed, the clamping portion 822 rebounds and clamps the limit position. The matching relationship between the second elastic member 82 and the rotating member 70 can be selected by those skilled in the art according to specific requirements.

[0146] The limiting portion 42 is a first limiting surface 35 . The first limiting surface 35 is disposed at one end of the needle body 31 adjacent to the rotating member 70 . The clamping portion 822 can be pressed against the first limiting surface 35 .

[0147] The circumferential limiting structure 50 is a second limiting groove 52 . The second limiting groove 52 is arranged on the hole wall of the through hole 33 . The first elastic member 81 can be inserted into the second limiting groove 52 .

[0148] The operation process of the endoscopic spiral anchor suture device 300 is as follows:

[0149] The operator drags the push-pull cable 91, and the push-pull cable 91 drives the control part 92 to move so that the width of the gap 813 becomes larger. Since the sum of the thickness of the control part 92, the first sheet 811, and the second sheet 812 is greater than the aperture of the narrowest part of the through hole 33 (the narrowest part of the through hole 33 is located at the position where the limiting protrusion 41 is provided on the hole wall), the push-pull cable 91 drives the control part 92 and the first elastic member 81 to interfere with the limiting protrusion 41. In this process, the clamping part 822 can press against the first limiting surface 35, so that the suture nail 30 cannot be moved along the through hole 33. 3 is moved relative to the rotating member 70 in the axial direction. In addition, the operator drives the first elastic member 81 to rotate through the rotating member 70. When the first piece 811 and the second piece 812 are respectively inserted into the second limiting groove 52, the groove wall of the second limiting groove 52 arranged along the axial direction of the through hole 33 interferes with the first piece 811 and the second piece 812, so that the suture staple 30 cannot move relative to the rotating member 70 along the circumferential direction of the through hole 33. Through the above operation, the suture staple 30 and the rotating member 70 are completely limited, so that the suture staple 30 is fixedly connected to the rotating member 70. Then, the rotating member 70 and the control member 90 are pushed, and the rotating member 70 with a suture staple 30 is pushed out from the outlet of the staple cartridge 20 and enters the human body cavity. After the suture nail 30 is rotated and fixed in place, the operator pushes the push-pull cable 91, which drives the control part 92 to withdraw from the gap, and drags the rotating member 70 and the control part 90 at the same time. Since the maximum thickness of the control part 92 and the sum of the thickness of the first piece 811 and the second piece 812 are smaller than the aperture of the narrowest part of the through hole 33, the first elastic member 81 and the control part 92 can be withdrawn from the through hole 33 one by one. In this process, the first piece 811 and the second piece 812 slide out of the second limiting groove 52, so that the suture nail 30 is separated from the rotating member 70, and the clamping part 822 is separated from the first limiting surface 35. After that, it enters the nail magazine 20 again to cooperate with the new suture nail 30. After that, repeat the above operation to suture the defect wound.

[0150] Embodiment 3

[0151] like Fig.21 and Fig. 22 As shown, the structure of the third embodiment is substantially the same as that of the second embodiment, and the specific difference is that:

[0152] The circumferential limiting structure 50 is a first limiting groove 51, which is disposed at one end of the needle body 31 adjacent to the rotating member 70, and the clamping portion 822 of the second elastic member 82 can be clamped into the first limiting groove 51. The first limiting surface 35 is the bottom surface of the first limiting groove 51.

[0153] Compared with the second embodiment, the operation process of the endoscopic spiral anchor suture device 300 of the third embodiment is different in that: the operator drags the push-pull cable 91 to drive the control part 92 and the first elastic member 81 to interfere with the limiting protrusion 41. During this process, the clamping part 822 of the second elastic member 82 enters the first limiting groove 51 and can be pressed against the first limiting surface 35 (the bottom surface of the first limiting groove 51) so that the suture nail 30 cannot move relative to the rotating member 70 along the axial direction of the through hole 33; in addition, the clamping part 822 interferes with the groove wall of the first limiting groove 51 arranged along the axial direction of the through hole 33 so that the suture nail 30 cannot move relative to the rotating member 70 along the circumferential direction of the through hole 33. Through the above operation, the suture nail 30 and the rotating member 70 are completely limited, so that the suture nail 30 is fixedly connected to the rotating member 70. The remaining other operation processes and their action principles are basically the same as those of the second embodiment.

[0154] Embodiment 4

[0155] like Figures 23 to 30 As shown, the structure of the fourth embodiment is substantially the same as that of the first embodiment, and the specific difference is that:

[0156] The matching structure 80 further includes a mounting tube 84, which is connected to the rotating member 70. The mounting tube 84 is provided with two limiting holes 841, and the limiting holes 841 penetrate the tube wall of the mounting tube 84 along the radial direction of the mounting tube 84. In a specific embodiment of the present application, the control member 90 passes through the mounting tube 84 of the matching structure 80 to match the matching structure 80.

[0157] The first elastic member 81 is connected to the control member 90 . The first elastic member 81 includes two deformation pieces 816 . The two deformation pieces 816 correspond to the two limiting holes 841 respectively and can protrude from the limiting holes 841 . The deformation pieces 816 can interfere with the hole walls of the limiting holes 841 .

[0158] The portion of the deformable sheet 816 protruding from the limiting hole 841 can interfere with the limiting protrusion 41, and the hole wall of the limiting hole 841 and the limiting protrusion 41 can be locked with the deformable sheet 816. The hole wall that limits the deformable sheet 816 is the hole wall of the limiting hole 841 that is arranged opposite to the limiting protrusion 41.

[0159] The control member 90 is configured to control the deformation piece 816 to extend out of the limiting hole 841 or to control the deformation piece 816 to retract.

[0160] The second elastic member 82 and the first elastic member 81 are the same component.

[0161] The limiting portion 42 is a second step surface 422 disposed on the hole wall of the through hole 33 . The second step surface 422 is disposed at a position corresponding to the position of the limiting protrusion 41 . The portion of the deformation piece 816 protruding from the limiting hole 841 can be pressed against the second step surface 422 .

[0162] In the radial direction of the through hole 33 , the cross-sectional shape of the through hole 33 is non-circular, and the circumferential limiting structure 50 is the portion of the through hole 33 whose cross-sectional shape is non-circular.

[0163] In the radial direction of the mounting tube 84 , the shape formed by the outer surface of the mounting tube 84 is adapted to the shape of the through hole 33 , and the mounting tube 84 interferes with the through hole 33 .

[0164] The control member 90 is a push-pull cable 91 , which is connected to the first elastic member 81 and can move along the axial direction of the rotating member 70 . Specifically, one end of the push-pull cable 91 passes through the rotating member 70 and is connected to the first elastic member 81 .

[0165] Compared with the first embodiment, the operation process of the endoscopic spiral anchor suture device 300 of the fourth embodiment is different in that: the push-pull cable 91 is pushed to make the two deformation sheets 816 protrude from the limiting hole 841. In the process of pulling the rotating member 70, the hole wall of the limiting hole 841 and the limiting protrusion 41 jointly squeeze the deformation sheet 816 to lock and limit it. At the same time, the end of the deformation sheet 816 (the second elastic member 82) is pressed against the second step surface 422, so that the suture nail 30 cannot move relative to the rotating member 70 along the axial direction of the through hole 33; in addition, since the cross-sectional shape of the mounting tube 84 and the through hole 33 is non-circular, the mounting tube 84 interferes with the through hole 33, so that the suture nail 30 cannot move relative to the rotating member 70 along the circumferential direction of the through hole 33. Through the above operation, the suture nail 30 and the rotating member 70 are completely limited, so that the suture nail 30 and the rotating member 70 are fixedly connected. After anchoring a suture staple 30 to human tissue, the push-pull cable 91 is pulled to drive the deformable sheet 816 to withdraw from the gap between the limiting protrusion 41 and the second step surface 422, and then the rotating member 70 is dragged to separate the suture staple 30 from the rotating member 70. The remaining operation process and its action principle are basically the same as those in Example 1.

[0166] Embodiment 5

[0167] like Figures 31 to 38 As shown, the structure of the fifth embodiment is substantially the same as that of the fourth embodiment, with the main difference being that the first elastic member 81 and the second elastic member 82 are two separate components, and the axial movement of the suture staple 30 is achieved by limiting the first elastic member 81 and the second elastic member 82 in two axial directions.

[0168] The second elastic member 82 is a clamping piece 823 , which is disposed on the mounting tube 84 and is tilted relative to the mounting tube 84 , and extends in a direction away from the mounting tube 84 along the axial direction of the mounting tube 84 .

[0169] The limiting portion 42 is a second limiting surface 36 disposed at one end of the needle body 31 adjacent to the rotating member 70 , and the engaging piece 823 can be pressed against the second limiting surface 36 .

[0170] Compared with the fourth embodiment, the operation process of the endoscopic spiral anchor suture device 300 of the fifth embodiment is different in that: in the process of pulling the rotating member 70, the deformation sheet 816 and the hole wall of the limiting hole 841 and the limiting protrusion 41 are pressed together to squeeze the deformation sheet 816 to lock and limit. At the same time, in this process, the clamping sheet 823 can be pressed against the second limiting surface 36 to prevent the suture nail 30 from moving along the axial direction of the through hole 33 relative to the rotating member 70. The rest of the operation process and its action principle are basically the same as those of the fourth embodiment.

[0171] Embodiment 6

[0172] like Fig.39 and Fig.40 As shown, the structure of the sixth embodiment is substantially the same as that of the second embodiment, and the specific difference is that:

[0173] The first piece 811 is provided with a first engaging portion 814 , and the second piece 812 is provided with a second engaging portion 815 .

[0174] The first engaging portion 814 and the second engaging portion 815 extend in the radial direction of the through hole 33 , and the first engaging portion 814 and the second engaging portion 815 are disposed opposite to each other.

[0175] The first engaging portion 814 and the second engaging portion 815 can be engaged with the limiting protrusion 41 respectively.

[0176] In a specific embodiment of the present application, the first engaging portion 814 is an engaging protrusion protruding from the surface of the first sheet 811, and the second engaging portion 815 is an engaging protrusion protruding from the surface of the second sheet 812.

[0177] In another specific embodiment of the present application, the second engaging portion 815 is an engaging piece. The second engaging portion 815 is an engaging piece.

[0178] The control member 90 includes a push-pull cable 91 and a control portion 92 . The control portion 92 is disposed between the first piece 811 and the second piece 812 . The push-pull cable 91 is connected to the control portion 92 . The push-pull cable 91 can move along the axial direction of the rotating member 70 .

[0179] The push-pull cable 91 is configured to drive the control part 92 to move, so that the width of the gap 813 becomes larger, and the first piece 811 and the second piece 812 are engaged with the limiting protrusion 41 .

[0180] The second elastic member 82 includes a connecting portion 821 and a clamping portion 822 . The connecting portion 821 is connected to one end of the rotating member 70 . The clamping portion 822 protrudes from the outer surface of the rotating member 70 along the radial direction of the through hole 33 .

[0181] The limiting portion 42 is a first limiting surface 35 . The first limiting surface 35 is disposed at one end of the needle body 31 adjacent to the rotating member 70 . The clamping portion 822 can be pressed against the first limiting surface 35 .

[0182] The circumferential limiting structure 50 is a first limiting groove 51, which is disposed at one end of the needle body 31 adjacent to the rotating member 70, and the clamping portion 822 of the second elastic member 82 can be clamped into the first limiting groove 51. The first limiting surface 35 is the bottom surface of the first limiting groove 51.

[0183] The operator drags the push-pull cable 91, and the push-pull cable 91 drives the control part 92 to move so that the width of the gap 813 becomes larger, so that the first engaging part 814 and the second engaging part 815 interfere with the limiting protrusion 41. In this process, the engaging part 822 is inserted into the first limiting groove 51 from the opening thereof, and can be pressed against the first limiting surface 35 (the bottom surface of the first limiting groove 51), so that the suture nail 30 cannot move relative to the rotating member 70 along the axial direction of the through hole 33. In addition, the engaging part 822 interferes with the groove wall of the first limiting groove 51 arranged along the axial direction of the through hole 33, so that the suture nail 30 cannot move relative to the rotating member 70 along the circumferential direction of the through hole 33. Then, the rotating member 70 and the control part 90 are pushed, and the rotating member 70 with a suture nail 30 is pushed out from the outlet of the nail magazine 20 and enters the human body cavity. After the suture staple 30 is rotated and fixed in place, the operator pushes the push-pull cable 91, which drives the control part 92 to withdraw from the gap, so that the first engaging part 814 and the second engaging part 815 are separated from the limiting protrusion 41, and then the rotating member 70 and the control member 90 are dragged at the same time. During this process, the first elastic member 81 is moved out of the through hole 33, and the engaging part 822 slides out of the first limiting groove 51, so that the suture staple 30 is separated from the rotating member 70. After that, enter the staple cartridge 20 again to install a new suture staple 30. After that, repeat the above operation to suture the defect wound.

[0184] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An endoscopic spiral anchor suture device, characterized in that: The endoscopic spiral anchor suture device comprises: an outer sleeve; A nail magazine, wherein the nail magazine has a receiving cavity, and a first limiting structure is provided on the receiving cavity; A suture staple, the suture staple is arranged in the accommodating cavity, the suture staple comprises a needle body and a puncture portion, the needle body is provided with a through hole penetrating therethrough, the needle body is provided with an axial locking structure and a circumferential limiting structure, and the needle body is also provided with a second limiting structure cooperating with the first limiting structure; A suture, the suture is connected to the suture staple, and the suture staple is capable of sliding relative to the suture; A rotating member, the rotating member passes through the outer sleeve and is inserted into the nail magazine, and the rotating member can rotate relative to the outer sleeve; A matching structure, wherein the matching structure can be locked with the axial locking structure and limited with the circumferential limiting structure; and A control member, wherein the control member cooperates with the matching structure, and the control member is configured to control the matching structure to be locked or separated from the axial locking structure.

2. The endoscopic spiral anchor suture device according to claim 1, characterized in that: The matching structure includes a first elastic member and a second elastic member; The axial locking structure comprises a limiting protrusion and a limiting portion, wherein the limiting protrusion is arranged on the hole wall of the through hole; The first elastic member can cooperate with the limiting protrusion to limit the movement of the rotating member relative to the needle body along a first direction, and the second elastic member can cooperate with the limiting portion to limit the movement of the rotating member relative to the needle body along a second direction, and the first direction is opposite to the second direction.

3. The endoscopic spiral anchor suture device according to claim 2, characterized in that: The matching structure is connected to the rotating member, the first elastic member includes a first piece and a second piece, one end of the first piece is connected to one end of the second piece, the first piece and the second piece extend along the axial direction of the through hole, and there is a gap between the first piece and the second piece; The control member is configured to control the first piece and the second piece to be respectively engaged with the limiting protrusion.

4. The endoscopic spiral anchor suture device according to claim 3, characterized in that: The control member includes a push-pull cable and a control part, the control part is arranged between the first sheet and the second sheet, the push-pull cable is connected to the control part, and the push-pull cable can move along the axial direction of the rotating member; The push-pull cable is configured to drive the control part to move so as to increase the width of the gap and enable the first piece and the second piece to be engaged with the limiting protrusion.

5. The endoscopic spiral anchor suture device according to claim 4, characterized in that: The aperture of the through hole at one end adjacent to the rotating member is smaller than the aperture of the through hole at one end away from the rotating member, and the aperture of the narrowest part of the through hole satisfies the following formula: Dmin<T1+T2+W; Dmin is the aperture of the narrowest part of the through hole, T1 is the thickness of the first sheet in the radial direction of the through hole, T2 is the thickness of the second sheet in the radial direction of the through hole, and W is the length between the two contact points of the control part with the first sheet and the second sheet in the radial direction of the through hole.

6. The endoscopic spiral anchor suture device according to claim 4, characterized in that: The first sheet is provided with a first engaging portion, and the second sheet is provided with a second engaging portion; The first engaging portion and the second engaging portion extend in a radial direction of the through hole, and the first engaging portion and the second engaging portion are arranged opposite to each other; The first engaging portion and the second engaging portion can be engaged with the limiting protrusion respectively.

7. The endoscopic spiral anchor suture device according to claim 6, characterized in that: The first engaging portion is an engaging protrusion protruding from the first sheet surface, and the second engaging portion is an engaging protrusion protruding from the second sheet surface; or The second engaging portion is a engaging piece, and the second engaging portion is a engaging piece.

8. The endoscopic spiral anchor suture device according to claim 3, characterized in that: The limiting portion is a first step surface arranged on the hole wall of the through hole, and the setting position of the first step surface is arranged opposite to the position of the limiting protrusion; The second elastic member and the first elastic member are the same component; The other end of the first sheet and the other end of the second sheet can be pressed against the first step surface respectively.

9. The endoscopic spiral anchor suture device according to claim 1, characterized in that: The endoscopic spiral anchor suture device further comprises: a connecting tube, one end of which is connected to the rotating member, and the other end of which is connected to the matching structure.

10. The endoscopic spiral anchor suture device according to claim 3, characterized in that: The second elastic member includes a connecting portion and a clamping portion, the connecting portion is connected to one end of the rotating member, and the clamping portion protrudes from the outer surface of the rotating member along the radial direction of the through hole; The limiting portion is a first limiting surface, which is arranged at one end of the needle body adjacent to the rotating member, and the clamping portion can be pressed against the first limiting surface.

11. The endoscopic spiral anchor suture device according to claim 10, characterized in that: The circumferential limiting structure is a first limiting groove, which is arranged at one end of the needle body adjacent to the rotating member, and the clamping portion of the second elastic member can be clamped into the first limiting groove; The first limiting surface is the bottom surface of the first limiting groove.

12. The endoscopic spiral anchor suture device according to claim 10, characterized in that: The matching structure further includes: a connecting pipe, one end of which is connected to the rotating member, and the other end of which is connected to the first elastic member; The connecting portion of the second elastic member is connected to the connecting pipe, and the clamping portion protrudes from the outer surface of the connecting pipe.

13. The endoscopic spiral anchor suture device according to claim 12, characterized in that: The connecting tube is provided with a mounting hole, the mounting hole penetrates the connecting tube in a radial direction of the connecting tube, the setting position of the clamping portion corresponds to the position of the mounting hole, and the clamping portion passes through the mounting hole and protrudes out of the outer surface of the connecting tube.

14. The endoscopic spiral anchor suture device according to claim 8 or 10, characterized in that: The circumferential limiting structure is a second limiting groove, the second limiting groove is arranged on the hole wall of the through hole, and the first elastic member can be inserted into the second limiting groove.

15. The endoscopic spiral anchor suture device according to claim 2, characterized in that: The matching structure further includes a mounting tube, the mounting tube is connected to the rotating member, and two limiting holes are arranged on the mounting tube, and the limiting holes penetrate the tube wall of the mounting tube along the radial direction of the mounting tube; The first elastic member is connected to the control member, and the first elastic member includes two deformation pieces, the two deformation pieces respectively correspond to the two limiting holes and can protrude from the limiting holes, and the deformation pieces can interfere with the hole walls of the limiting holes; The portion of the deformable sheet protruding from the limiting hole can interfere with the limiting protrusion, and the hole wall of the limiting hole and the limiting protrusion can be locked with the deformable sheet; The control member is configured to control the deformation piece to extend out of the limiting hole or to control the deformation piece to retract.

16. The endoscopic spiral anchor suture device according to claim 15, characterized in that: The second elastic member and the first elastic member are the same component; The limiting portion is a second step surface arranged on the hole wall of the through hole, the setting position of the second step surface corresponds to the position of the limiting protrusion, and the part of the deformation piece protruding from the limiting hole can be pressed against the second step surface.

17. The endoscopic spiral anchor suture device according to claim 15, characterized in that: The second elastic member is a clamping piece, which is arranged on the mounting tube and is inclined relative to the mounting tube, and the clamping piece extends in the axial direction of the mounting tube away from the mounting tube; The limiting portion is a second limiting surface arranged on one end of the needle body adjacent to the rotating member, and the clamping piece can be pressed against the second limiting surface.

18. The endoscopic spiral anchor suture device according to claim 15, characterized in that: In the radial direction of the through hole, the cross-sectional shape of the through hole is non-circular, and the circumferential limiting structure is the portion of the through hole whose cross-sectional shape is non-circular; In the radial direction of the mounting tube, the shape formed by the outer surface of the mounting tube is matched with the shape of the through hole, and the mounting tube interferes with the through hole.

19. The endoscopic spiral anchor suture device according to claim 15, characterized in that: The control member is a push-pull cable, the push-pull cable is connected to the first elastic member, and the push-pull cable can move along the axial direction of the rotating member.

20. The endoscopic spiral anchor suture device according to claim 1, characterized in that: The nail cartridge is fixedly connected to the end of the outer sleeve; or The nail magazine is disposed in the pipe of the outer sleeve and is fixedly connected to the outer sleeve; or The nail magazine is arranged on the outside of the outer sleeve.

21. The endoscopic spiral anchor suture device according to claim 1, characterized in that: The first limiting structure is a one-way card; The second limiting structure is a one-way slot arranged on the outer surface of the needle body.

22. The endoscopic spiral anchor suture device according to claim 1, characterized in that: The rotating member is an elastic tube, and the pipe of the elastic tube through which the control member passes cooperates with the matching structure.

23. The endoscopic spiral anchor suture device according to claim 1, characterized in that: The rotating member is a solid cable with elasticity, and the solid cable and the control member are arranged side by side.

24. The endoscopic spiral anchor suture device according to claim 22 or 23, characterized in that: The control member passes through the connecting pipe or the mounting pipe of the matching structure to match with the matching structure.

25. The endoscopic spiral anchor suture device according to claim 1, characterized in that: An elastic support member is provided on the control member, and the elastic support member is supported between the control member and a support surface, and the support surface is located on the rotating member or the matching structure; The elastic supporting member is compressed when the control member moves along the axial direction of the through hole.

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