Stapling instrument, stapling device and endoscopic suturing method

Abstract

The application discloses a nail-shaped suture device, a nail-shaped suture device and an endoscopic suture method. The nail-shaped suture device comprises a seat body, a first pair of impact elements, a second pair of impact elements and a nail accommodating element. The first pair of impact elements and the second pair of impact elements are arranged on the seat body. At least one of the first pair of impact elements and the second pair of impact elements is arranged on the seat body in a movable mode and is provided with a first guide mechanism between the seat body. The first pair of impact elements and the second pair of impact elements are arranged on the seat body in a movable mode and are provided with a second guide mechanism between the seat body. The nail accommodating element is arranged on the first pair of impact elements in a movable mode. The nail accommodating element has a nail body accommodating space. A pressing window and a suture window are arranged on the nail accommodating element and are communicated with the accommodating space. A pressing part is arranged on the first pair of impact elements and is opposite to the pressing window. A nail body suture part is arranged on the second pair of impact elements and is opposite to the suture window. The nail-shaped suture device is more smooth in a suture process, reduces deviation and stagnation, and has good suture effect.

Description

Technical Field

[0001] This invention belongs to the field of medical devices, specifically relating to a staple suture device, a staple suture apparatus, and an endoscopic suture method. Background Technology

[0002] Gastrointestinal defects, especially perforations, are a common problem encountered during flexible endoscopic minimally invasive surgery. Currently, endoscopic suturing methods include endoscopic metal clip closure, purse-string sutures using nylon cords and endoscopic metal clips, and some advanced suturing devices reported abroad. The first two are commonly used methods; however, the opening angle and closure stability of endoscopic metal clips are limited, generally used for closing small defects. Purse-string sutures using nylon cords and metal clips can repair larger perforations, but their flexibility and stability are inferior, and the procedure is more complex. With the development of flexible endoscopic minimally invasive techniques, the above defect repair and suturing methods are no longer sufficient to meet the needs of surgery.

[0003] In response to the shortcomings of the prior art, the applicant provides a staple-shaped suture device. However, the staples of the staple-shaped suture device are exposed without any protective structure. During the suturing process, the staples will shift due to the pressure of the tissue to be sutured, making it difficult to achieve a precise suturing effect. Summary of the Invention

[0004] The purpose of this invention is to provide a stapled stapler, a stapled stapler device, and an endoscopic stapler method. The stapled stapler described in this invention provides a smoother stapler during the stapler process, reduces deviation and jamming, and achieves a better stapler effect.

[0005] The present invention provides a nail-shaped suture device, which includes a base, a first colliding member, a second colliding member, and a nail receiving member, wherein the first colliding member and the second colliding member are both disposed on the base;

[0006] A first guide mechanism is provided between at least one of the first collider and the second collider and the base. At least one of the first collider and the second collider is movably disposed on the base through the first guide mechanism, so that the first collider and the second collider move closer to each other or further away from each other.

[0007] The nail receiver is movably disposed on the first collision member, and a second guide mechanism is provided between the nail receiver and the first collision member;

[0008] The nail receiver has a nail body receiving space. The nail receiver is provided with a pressure window and a stitching window communicating with the receiving space. The first collision member is provided with a pressure part, which is opposite to the pressure window. The second collision member is provided with a nail body stitching part, and the stitching window is opposite to the nail body stitching part.

[0009] In one embodiment, the first guiding mechanism includes a first linear guide portion and a second linear guide portion. The first linear guide portion is disposed on the base body, and the second linear guide portion is disposed on the first collision member and / or the second collision member. The first linear guide portion and the second linear guide portion cooperate with each other.

[0010] In one embodiment, the first guide mechanism is parallel to the guide direction of the second guide mechanism.

[0011] In one embodiment, the first linear guide portion and the second linear guide portion are mating linear guide rails and linear guide grooves.

[0012] In one embodiment, the first linear guide portion is located on two opposite outer surfaces of the seat, and the second linear guide portion is located on two opposite inner surfaces of the first collider.

[0013] In one embodiment, the second guiding mechanism includes a third linear guiding portion and a fourth linear guiding portion. The third linear guiding portion is disposed on the first colliding member, and the fourth linear guiding portion is disposed on the nail receiving member. The third linear guiding portion and the fourth linear guiding portion cooperate with each other.

[0014] In one embodiment, a first elastic member is provided between the first collider and the nail receiver.

[0015] In one embodiment, the first elastic element is a helical spring, and the nail receiver is disposed in the helical middle region of the first elastic element.

[0016] In one embodiment, the longitudinal projection of the main body of the nail receiver is square, and the longitudinal projection of the helical spring is also square.

[0017] In one embodiment, the nail receiving member includes a top plate, a bottom plate, and two side plates. The top plate is located above the bottom plate, and the two side plates connect the top plate and the bottom plate respectively. The guide groove is provided on the two side plates. The pressing part is a pressing tongue, which is inserted into the guide groove and slides with the guide groove to form the second guiding mechanism.

[0018] In one embodiment, an elastic hook is provided on the first colliding member, and the nail receiver is limited by the elastic hook.

[0019] In one embodiment, a second elastic member is provided inside the nail receiver, the second elastic member being located at the lower part of the nail body receiving space.

[0020] In one embodiment, at least two suture staples are placed in the staple holder in an overlapping direction.

[0021] In one embodiment, the suture staple includes a staple plate and a staple body fixed to the staple plate, the staple body facing the staple body suture portion.

[0022] In one embodiment, the nail body stitching portion includes a concave arc and an convex arc, the concave arc and the convex arc are connected, and the nail tip of the nail body faces the concave arc and is offset from one side.

[0023] In one embodiment, a clamping head is also included, the nail body having a limiting portion, the nail body corresponding to the clamping head, the clamping head being installed on the stitching portion of the nail body, and the nail tip of the nail body facing the clamping head.

[0024] In one embodiment, a clamping head is provided at the nail body stitching portion, and a clamping head receiving space is provided inside the clamping head receiving space.

[0025] In one embodiment, a third elastic element is provided inside the clamping head receiving space, the third elastic element being located at the lower part of the clamping head.

[0026] In one embodiment, the nail receiver includes an outer frame and an inner seat, the inner seat being placed inside the outer frame and locked to the outer frame by a locking member.

[0027] In one embodiment, the nail receiver has a through-hole that extends vertically.

[0028] In one embodiment, the lower part of the seat is reduced in size to form an inverted frustum shape.

[0029] In one embodiment, a first pin is provided on the base, and a transmission component is movably mounted on the first pin. The transmission component is provided with a force-applying part and a force-transmitting part, and the force-transmitting part cooperates with the first collision component.

[0030] In one embodiment, the force transmission part of the transmission member is provided with a first groove, and the first collision member is provided with a second pin, which cooperates with the first groove.

[0031] In one embodiment, a push-pull member is also included, the front end of which engages with the force-applying portion of the transmission member.

[0032] In one embodiment, the force-applying portion of the transmission member is provided with a second sliding groove, and the front end of the push-pull member is provided with a third pin, which cooperates with the second sliding groove on the transmission member.

[0033] The present invention also provides a nail-shaped suture device, including a guide tube, an endoscope tube and the aforementioned nail-shaped suturer. The guide tube has at least a first guide cavity and a second guide cavity. A push-pull member is provided in the first guide cavity, and an endoscope tube is provided in the second guide cavity. The seat is installed at the front end of the endoscope tube, and the front end of the push-pull member cooperates with the force-applying part of the transmission member.

[0034] The present invention also provides an endoscopic suturing method, which includes the following steps:

[0035] The endoscope tube delivers the stapled stapler to the site of the human tissue to be sutured, and positions the human tissue between the first and second colliders;

[0036] Under the action of the push-pull component, at least one of the first or second colliding components will translate towards each other under the action of external force;

[0037] When the nail receiver on the first collider approaches the second collider, the nail receiver moves backward relative to the first collider. The pressing part on the first collider pushes the suture nail out of the suture window through the pressing window, and under the impact of the second collider, it penetrates the human tissue to be sutured and sutures the human tissue to be sutured.

[0038] In one embodiment, when the staple receptacle on the first collider approaches the second collider and encounters resistance, the first elastic element is gradually compressed; after the human tissue to be sutured is sutured, under the action of the push-pull element, the first collider and the second collider move away from each other, and the compressed first elastic element recovers to drive the staple receptacle to reset, so that the new suture staple located in the staple receptacle enters the pressure window and is in place for the next suture.

[0039] The technical solution provided by this invention has the following advantages and effects:

[0040] When suturing human tissue, the stapler is first pushed to the site of the tissue to be sutured through an endoscopic tube, and then the tissue is sutured using the stapler. This allows for minimally invasive surgery and reduces damage to the human tissue. During suturing, the staples are placed within the staple holder. In the initial state of suturing, the staples, staple holder, and first impactor do not move relative to each other. After impacting the tissue to be sutured and the second impactor, the staple holder moves backward relative to the first impactor (and its pressing part) and the staple located within the pressing window. Meanwhile, the first impactor (and its pressing part) and the staple located within the pressing window continue to impact the tissue to be sutured and the second impactor. Thus, the pressing part gradually pushes the staple out of the pressing window and through the tissue to be sutured, suturing the tissue. Throughout the suturing process, the staples are always protected by the staple holder and will not shift due to compression from the sutured tissue, resulting in a more precise suturing effect. Attached Figure Description

[0041] The accompanying drawings illustrate specific examples of the technical solutions described in this invention and, together with the detailed embodiments, form part of the specification, serving to explain the technical solutions, principles, and effects of this invention.

[0042] Unless otherwise specified or defined, the same reference numerals in different figures represent the same or similar technical features, and different reference numerals may be used to represent the same or similar technical features.

[0043] Figure 1 This is an exploded view of the nail-shaped sewing device in Embodiment 1 of the present invention;

[0044] Figure 2 This is an exploded view of the nail-shaped sewing device in Embodiment 1 of the present invention;

[0045] Figure 3 This is a diagram showing the state of the stapled stapler when it enters the digestive tract in Embodiment 1 of the present invention.

[0046] Figure 4 This is a cross-sectional view of the stapled stapler entering the digestive tract in Embodiment 1 of the present invention;

[0047] Figure 5 This is a diagram showing the state of the stapled stapler when it is opened, according to Embodiment 1 of the present invention.

[0048] Figure 6 This is a cross-sectional view of the stapled stapler when it is opened, according to Embodiment 1 of the present invention;

[0049] Figure 7 This is a diagram showing the state of the stapled stapler during suturing in Embodiment 1 of the present invention;

[0050] Figure 8 This is a cross-sectional view of the nail-shaped sewing device during sewing in Embodiment 1 of the present invention;

[0051] Figure 9 This is a structural diagram of the suture staples placed inside the staple holder in Embodiment 1 of the present invention;

[0052] Figure 10 This is a cross-sectional view of the suture staples placed inside the staple holder in Embodiment 1 of the present invention;

[0053] Figure 11 This is a structural diagram of the first collider in Embodiment 1 of the present invention (with the pressing part removed);

[0054] Figure 12 This is a structural diagram of the second collider and the base body in Embodiment 1 of the present invention;

[0055] Figure 13This is a structural diagram of the nail-receiving component in Embodiment 1 of the present invention;

[0056] Figure 14 This is a structural diagram of the inner seat in Embodiment 1 of the present invention;

[0057] Figure 15 This is a structural diagram of the pressing tongue piece in Embodiment 1 of the present invention;

[0058] Figure 16 This is a structural diagram of the elastic hook in Embodiment 1 of the present invention;

[0059] Figure 17 This is a structural diagram of the suture staples before suturing in Embodiment 1 of the present invention;

[0060] Figure 18 This is a structural diagram of the suture staples after suturing in Embodiment 1 of the present invention;

[0061] Figure 19 This is a structural diagram of the locking component in Embodiment 1 of the present invention;

[0062] Figure 20 This is a structural diagram of the transmission component in Embodiment 1 of the present invention;

[0063] Figure 21 This is an exploded view of the nail-shaped sewing device in Embodiment 2 of the present invention;

[0064] Figure 22 This is an exploded view of the nail-shaped sewing device in Embodiment 2 of the present invention;

[0065] Figure 23 This is a diagram showing the state of the stapled stapler when it enters the digestive tract in Embodiment 2 of the present invention;

[0066] Figure 24 This is a cross-sectional view of the stapled stapler entering the digestive tract in Embodiment 2 of the present invention;

[0067] Figure 25 This is a diagram showing the state of the stapled stapler when it is opened, according to Embodiment 2 of the present invention.

[0068] Figure 26 This is a cross-sectional view of the stapled stapler when it is opened, according to Embodiment 2 of the present invention;

[0069] Figure 27 This is a diagram showing the state of the stapled stapler during suturing in Embodiment 2 of the present invention;

[0070] Figure 28 This is a cross-sectional view of the nail-shaped sewing device during sewing in Embodiment 2 of the present invention;

[0071] Figure 29 This is a structural diagram of the first elastic member and the nail receiving member in Embodiment 2 of the present invention;

[0072] Figure 30 This is a cross-sectional view of the first elastic member and the nail receiving member in Embodiment 2 of the present invention;

[0073] Figure 31 This is a structural diagram of the first collider in Embodiment 2 of the present invention (with the pressing part removed);

[0074] Figure 32 This is a structural diagram of the nail-receiving component in Embodiment 2 of the present invention;

[0075] Figure 33 This is an exploded view of the nail-shaped sewing device in Embodiment 3 of the present invention;

[0076] Figure 34 This is an exploded view of the nail-shaped sewing device in Embodiment 3 of the present invention;

[0077] Figure 35 This is a diagram showing the state of the stapled stapler when it enters the digestive tract in Embodiment 3 of the present invention;

[0078] Figure 36 This is a cross-sectional view of the stapled stapler entering the digestive tract in Embodiment 3 of the present invention;

[0079] Figure 37 This is a diagram showing the state of the stapled stapler when it is opened, according to Embodiment 3 of the present invention.

[0080] Figure 38 This is a cross-sectional view of the stapled stapler when it is opened, according to Embodiment 3 of the present invention;

[0081] Figure 39 This is a diagram showing the state of the stapled stapler during suturing in Embodiment 3 of the present invention;

[0082] Figure 40 This is a cross-sectional view of the nail-shaped sewing device during sewing in Embodiment 3 of the present invention;

[0083] Figure 41 This is a structural diagram of the first elastic member and the nail receiving member in Embodiment 3 of the present invention;

[0084] Figure 42 This is a cross-sectional view of the first elastic member and the nail receiving member in Embodiment 3 of the present invention;

[0085] Figure 43 This is a structural diagram of the first collider in Embodiment 3 of the present invention (with the pressing part removed);

[0086] Figure 44 This is a structural diagram of the second collider and the base body in Embodiment 3 of the present invention;

[0087] Figure 45This is a structural diagram of the clamping head placed in the clamping head receiving member in Embodiment 3 of the present invention;

[0088] Figure 46 This is a structural diagram of the suture staple in Embodiment 3 of the present invention;

[0089] Figure 47 This is a structural diagram of the clamping head in Embodiment 3 of the present invention;

[0090] Explanation of reference numerals in the attached figures:

[0091] 10. Base; 111. First pin; 112. Second pin; 113. Third pin; 12. Transmission component; 120. Shaft hole; 121. Force-applying part; 122. First slide groove; 123. Force-transmitting part; 124. Second slide groove; 13. Limiting component; 131. Limiting hole; 14. Fixing insertion hole.

[0092] 20. First colliding component; 201. End plate; 2010. Fixing groove; 2011. Receiving groove; 2012. Relief groove; 202. Side arm; 21. Pressing tongue; 211. Side wing; 212. Pressing part; 24. Elastic hook; 241. Fixing end; 242. Elastic hook part.

[0093] 30. Second collider; 31. Nail body seam; 32. Insertion groove.

[0094] 40. Nail receiving component; 401. Nail body receiving space; 411. Outer frame; 412. Inner seat; 413. Locking component; 4131. Resilient lock head; 414. Locking hole; 421. Top plate; 422. Bottom plate; 423. Side plate; 424. Limiting plate; 431. Pressing window; 432. Sealing window; 441. First elastic element; 442. Second elastic element; 45. Light transmission hole.

[0095] 51. Linear guide rail; 52. Linear guide groove.

[0096] 60. Seam staple; 611. Connecting piece; 612. Staple plate; 62. Staple body; 621. Limiting part; 63. Clamping head; 631. Insertion port; 632. Elastic clamping piece; 64. Clamping head receiver; 641. Third elastic element; 642. Fixing plate; 643. Movable plate; 644. Limiting baffle; 645. Insertion plate.

[0097] 72. Guide tube; 721. First guide cavity; 722. Inner guide tube; 723. Second guide cavity; 73. Push-pull component; 74. Endoscope tube; 741. Lens; 742. Endoscope cavity. Detailed Implementation

[0098] To facilitate understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0099] Unless otherwise specified or defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. In practical contexts relating to the technical solutions of this invention, all technical and scientific terms used herein may also have meanings corresponding to the objectives of achieving the technical solutions of this invention.

[0100] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0101] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0102] It should be noted that when a component is considered "fixed" to another component, it can be directly fixed to the other component or there can be an intervening component; when a component is considered "connected" to another component, it can be directly connected to the other component or there can be an intervening component; when a component is considered "mounted" on another component, it can be directly mounted on the other component or there can be an intervening component; when a component is considered "placed" on another component, it can be directly placed on the other component or there can be an intervening component.

[0103] Unless otherwise specified or defined, the terms “described” or “the” as used herein refer to the technical features or technical content mentioned or described above, which may be the same as or similar to the technical features or technical content mentioned above.

[0104] Undoubtedly, any technical content or feature that is contrary to or clearly contradicts the purpose of this invention should be excluded.

[0105] Example 1

[0106] like Figures 1 to 20 As shown, the staple suture device described in this embodiment is mainly used for suturing the digestive tract. It includes a guide tube, an endoscope tube 74, and a staple suturer. The guide tube 72 has a first guide cavity 721 and a second guide cavity 723. An inner catheter 722 is provided in the first guide cavity 721, and a push-pull member 73 is provided in the inner catheter 722. An endoscope tube 74 is provided in the second guide cavity. The seat is installed at the front end of the endoscope tube 74, and the front end of the push-pull member 73 cooperates with the force application part of the transmission member.

[0107] In this embodiment, the push-pull component 73 is made of a guide wire with a certain degree of elasticity and rigidity, and an endoscope tube 74 is built into the second guide cavity 723. The guide tube 72 is elastic, can be bent and is not easily deformed. It can be integrally molded from a highly elastic material, or a pipe with an embedded spring, or other pipe components that meet the requirements of elastic performance. The first guide cavity 721 plays a guiding and limiting role. Its setting allows the push-pull component 73 to bend adaptively in a bent state, so as to effectively transmit the pushing and pulling force.

[0108] The front end of the endoscope tube 74 is inserted into the fixing hole 14 on the base 10 of the stapler and can be connected to the base 10 of the stapler by interference fit or by other connectors. Other cavities can also be provided in the endoscope tube 74 as needed, such as for image transmission or for gas or liquid delivery.

[0109] The following is a detailed description of the stapled stapler:

[0110] A staple-shaped suture device includes a base 10, a first impactor 20, a second impactor 30, and a staple receiving member 40. The lower part of the base 10 is reduced in size to form an inverted frustum shape, thereby reducing the volume of the base 10 and rounding the corners to facilitate the safe insertion of the staple-shaped suture device into the human body cavity. The first impactor 10 and the second impactor 30 are both disposed on the base 10. A first guide mechanism is provided between the first impactor 20 and the base 10. The first impactor 20 is movably disposed on the base 10 through the first guide mechanism, causing the first impactor 20 and the second impactor 30 to move closer to or further away from each other. The staple receiving member 40 is movably disposed within the receiving groove 2011 of the first impactor 20. A second guide mechanism is provided between the staple receiving member 40 and the first impactor 20. Both the first guide mechanism and the second guide mechanism are linear guide mechanisms, and their guiding directions are parallel. The nail receiver 40 has a nail body 62 receiving space 401. The nail receiver 40 is provided with a pressure window 431 and a stitching window 432 communicating with the receiving space. The first collision member 20 is provided with a pressure part 212, which is opposite to the pressure window 431. The second collision member 30 is provided with a nail body 62 stitching part 31, which is opposite to the nail body 62 stitching part 31.

[0111] During suturing, the staple-shaped stapler is placed at the site of the human tissue to be sutured, with the tissue positioned between the first pair of impactors 20 and the second pair of impactors 30. The first pair of impactors 20 translates towards each other under external force. The staple 60, under the impact of the first and second pair of impactors 20 and the second pair of impactors 30, penetrates the human tissue to be sutured, bends, and then sutures the tissue. This staple-shaped stapler allows for rapid suturing of the human digestive tract, is very convenient to use, and can be used in conjunction with the endoscope tube 74 to achieve a minimally invasive effect. In this embodiment, since the first pair of impactors 20 is guided by the first and second linear guide mechanisms, and moves by translation during movement, it reduces tissue displacement, resulting in high suturing precision and reliability. The effect is similar to that of open abdominal surgery and rigid endoscopy, where metal staples quickly and firmly close the defect, ensuring the effectiveness of the suturing.

[0112] In this embodiment, the first linear guide mechanism includes a first linear guide portion and a second linear guide portion. Its function is to achieve linear translational guidance between the first collision member 20 and the seat 10. It can be achieved by using a linear guide groove and a linear guide rail in combination, or by using a linear guide rod or other methods for guidance. To improve the guidance accuracy, multiple linear guide grooves and linear guide rails can also be used in combination. In this embodiment, the first linear guide portion and the second linear guide portion are a cooperating linear guide rail 51 and a linear guide groove 52. The first linear guide portion is located on two opposite outer surfaces of the seat 10. The first collision member 20 includes an end plate 201 and side arms 202 located on both sides of the end plate 201. The second linear guide portion is located on the inner surfaces of the two side arms 202.

[0113] The translation of the first collision member 20 is controlled by the push-pull member 73. In this embodiment, a first pin 111 is provided on the base 10, and a shaft hole 120 is provided on the transmission member 12. The transmission member 12 is movably mounted on the first pin 111 through its shaft hole 120. The transmission member 12 adopts an L-shaped rod with a force-applying part 121 at its front end and a force-transmitting part 123 at its rear end. A first sliding groove 122 and a second sliding groove 124 are respectively provided on the force-applying part 121 and the force-transmitting part 123. The transmission member 12 is movably mounted on the base 10 through the first pin 111. A third pin 113 is provided at the front end of the push-pull member 73. The third pin 113 is slidably engaged with the first sliding groove 122. A second pin 112 is provided on the first collision member 20. The second pin 112 is slidably engaged with the second sliding groove 124. In this embodiment, the push-pull member 73 drives the transmission member 12 to rotate, thereby converting the longitudinal translational motion of the push-pull member 73 along the direction of the endoscope tube 74 into the lateral translational motion of the first collision member 20, so that the suture staple 60 can accurately puncture the tissue to be sutured and realize the suturing of human tissue.

[0114] To reduce the swaying of the push-pull member 73 and improve the accuracy of the stitching, a limiting member 13 is connected to the seat 10. A limiting hole 131 is provided on the limiting member 13. The front end of the inner guide tube 722 is limited by the limiting hole 131, which reduces the lateral swaying of the push-pull member 73.

[0115] In this embodiment, the guide tube 72 is processed separately and used in conjunction with the endoscope tube 74. Alternatively, a corresponding first guide cavity 721 can be provided within the endoscope tube 74. It is understood that the guide tube 72 and the endoscope tube 74 can also be fixed together as one unit by means of straps or other structures. Depending on the application scenario, the guide tube 72 may also be used directly in combination with a stapled stapler to perform the suturing function without needing to cooperate with the endoscope tube 74.

[0116] It should be noted that:

[0117] In this invention, when the first collision member 20 is translated by the push-pull member 73, its transmission structure is not limited to the aforementioned method. It can be understood that the translation of the first collision member 20 relative to the second collision member 30 can also be achieved by other similar structures, and the human tissue can be sutured by the suture staples 60. All of these are within the scope of protection of this application.

[0118] Please focus on combining Figure 2 , Figures 9 to 19As shown, in this embodiment, the suture staple 60 adopts an approximate "∩" shape, which includes a connecting piece 611 and two staple bodies 62 installed on both sides of the connecting piece 611. The tips of the two staple bodies 62 are facing forward. During suturing, the first collision member 20 drives the suture staple 60 to collide with the second collision member 30, and causes the staple body 62 of the suture staple 60 to bend. After bending, the tip returns and faces the connecting piece 611. The connecting piece 611 can block the tip of the staple, preventing the tip from causing further damage to human tissue. To facilitate the installation of the suture staples 60 and prevent them from shifting, tilting, or falling off during the sewing process, a staple receiving member 40 is slidably disposed on the first impact member 20. A second guiding mechanism is provided between the staple receiving member 40 and the first impact member 20, which includes a third linear guide portion and a fourth linear guide portion. The third linear guide portion is disposed on the first impact member 20, and the fourth linear guide portion is disposed on the staple receiving member 40. The third linear guide portion and the fourth linear guide portion cooperate with each other. The staple receiving member 40 and the second guiding mechanism are described in detail below.

[0119] In this embodiment, two fixing slots 2010 are provided on the end plate 201 of the first collider 20, such as... Figure 15 As shown, the two side wings 211 of the pressing tongue 21 are respectively inserted into the fixing groove 2010 and fixed. The front end of the pressing tongue 21 forms the pressing part 212, and the linear guide rails 51 are formed on both sides.

[0120] The nail receiver 40 includes an outer frame 411 and an inner seat 412. The nail receiver 40 is generally square and includes a top plate 421, a bottom plate 422, and two side plates 423. The top plate 421 is located above the bottom plate 422, and the two side plates 423 connect the top plate 421 and the bottom plate 422 respectively. Guide grooves are provided on the two side plates 423, forming linear guide grooves 52. The two sides of the pressing tongue 21 (i.e., the linear guide rails 51) are engaged in the linear guide grooves 52 and slide in cooperation with the linear guide grooves 52 to form the second guiding mechanism. A square first elastic element 441, which is a helical spring, is provided on the outside of the nail receiving member 40. Limiting plates 424 are provided at both ends of the nail receiving member 40. An elastic hook 24 is provided on the first collision member 20. The fixed end 241 of the elastic hook 24 is fixed in the fixing groove 2010 of the first collision member 20. An elastic hook portion 242 is provided on the outer end of the elastic hook 24. The nail receiving member 40 is limited by the elastic hook portion 242 of the elastic hook 24 to prevent the nail receiving member 40 from falling out at will. When the elastic hook portion 242 is pried open, the nail receiving member 40 can be taken out.

[0121] The inner seat 412 includes a fixed plate 642 at the bottom and a movable plate 643 above the fixed plate 642. A second elastic member 442 is provided between the fixed plate 642 and the movable plate 643. A limiting baffle 644 for limiting the movable plate 643 is provided on the side of the fixed plate 642 and the movable plate 643. In this embodiment, there are at least two suture nails 60, which are placed on the movable plate 643 in an overlapping direction. Each suture nail 60 includes a connecting piece 611 and a nail body 62 fixed on the connecting piece 611. Under the action of the second elastic member 442, the suture nail 60 is lifted so that the front end of the suture nail 60 is aligned with the suture window 432 and the rear end is aligned with the pressing window 431. After one sew, the lower suture nail 60 is lifted so that a second sew can be performed, and so on. A locking hole 414 is provided on the outer frame 411, and the inner seat 412 is locked to the outer frame 411 by two elastic lock heads 4131 on the locking member 413.

[0122] Please focus on combining Figures 3 to 18 As shown, the steps for suturing human tissue are as follows:

[0123] like Figure 3 , Figure 4 As shown, by controlling the push-pull member 73, the first collision member 20 is positioned flush with the longitudinal direction of the seat body 10. This state is the insertion state of the nail-shaped suture device. The lateral dimension of the nail-shaped suture device is small to facilitate its insertion and avoid the nail-shaped suture device from abrading the mucosal tissue of the digestive tract lumen.

[0124] like Figure 5 , Figure 6 As shown, by controlling the push-pull component 73, the first collision component 20 is positioned on the outside, and the suture staple 60 is placed flat. This state is the open state of the staple-shaped suture device. The staple-shaped suture device has a large lateral dimension, which can facilitate the clamping operation of the human tissue to be sutured, and also leave enough space for the translation of the first collision component 20. It can also clamp and pull the human tissue to be sutured to the area between the first collision component 20 and the second collision component 30 through clamps and other devices.

[0125] like Figure 7 , Figure 8As shown, this state is the suturing state of the stapler. By operating the first operating member, the first impact member 20 is quickly moved inward, causing the staple receiver 40 (and the staples 60 inside) to collide with the second impact member 30. When the tissue to be sutured, located between the first and second impact members 20 and 30, comes into contact with the staple receiver 40 and resists it, the movement of the staple receiver 40 relative to the second impact member 30 stops. At the same time, the first elastic member 441 is compressed, thereby moving the staple receiver 40 backward relative to the first impact member 20. The first impact member 20 and the pressure tongue 21 fixed thereon continue to move forward relative to the second impact member 30. At this time, the first elastic member 441 is compressed to provide a buffering effect and make the entire suturing process more balanced. As the pressure tongue 21 continues to advance, it gradually pushes the staples 60 out of the staple receiver 40.

[0126] like Figure 12 As shown, during suturing, to ensure effective bending of the tip of the suture staple 60, an inward concave arc and an outward convex arc are provided on the inner side of the second anti-collision member 30. These arcs guide the bending direction of the staple tip. Preferably, there are two inward concave arcs, located on both sides of the outward convex arc. The two inward concave arcs guide the tips of the two staple bodies 62 of the suture staple 60 towards the center. The suture staple 60 bends its tip at the suturing portion 31 of the staple body 62, achieving the effect of suturing human tissue.

[0127] After the first stitching is completed, the first collider 20 and the second collider 30 move away from each other, and the compressed first elastic member 441 recovers to drive the nail receiver to return to its original state. As a result, the new stitching nail located in the nail receiver 40 is pushed up into the pressure window by the second elastic member 442 to await the next stitching.

[0128] The aforementioned three states are not necessarily the states in which the nail-shaped sewing device described in this embodiment is used. For example, in the insertion state, the first collision member 20 can be located slightly inside the seat 10.

[0129] This embodiment has the following advantages:

[0130] When suturing human tissue, the stapler is first delivered to the site of the tissue to be sutured through the guide tube 72 and the endoscope tube 74 therein, and then the tissue is sutured using the stapler. This allows for minimally invasive surgery and reduces damage to the human tissue. During suturing, the staple 60 is placed inside the staple receiver 40. In the initial state of suturing, the staple 60, staple receiver 40, and first impactor 20 do not move relative to each other. After impacting the tissue to be sutured and the second impactor 30, the first elastic... The staple 441 is gradually compressed, causing the staple receiving member 40 to move backward relative to the first impact member 20 (and its pressing part 212) and the staple 60 located in the pressing window 431. Meanwhile, the first impact member 20 (and its pressing part 212) and the staple 60 located in the pressing window 431 continue to impact the tissue to be sutured and the second impact member 30. Thus, the pressing part 212 gradually pushes the staple 60 out of the pressing window 432 through the pressing window 431, penetrating the tissue to be sutured and suturing it. During the suturing process, the staple remains within the pressing window 431 of the staple receiving member 40, and the staple 60 is always protected by the staple receiving member 40, preventing displacement due to tissue compression. This allows for smoother movement, reducing the skewness and jamming of the staple 60 during suturing, resulting in more precise suturing. At the end of the suturing process, the first pair of impactors 20 and the second pair of impactors 30 move away from each other, while the compressed first elastic element 441 recovers, causing the staple receiver 40 to recover as well. This allows the new staple 60 located in the staple receiver 40 to enter the pressure window 431 for the next suturing. This effectively solves the problem of continuous suturing with multiple staples and improves suturing efficiency.

[0131] Example 2

[0132] like Figures 21 to 32 As shown, in this embodiment, the nail receiver 40 accommodates a single suture nail 60, and its principle is the same as in embodiment one, so it will not be described again here.

[0133] Please focus on combining Figure 29 , Figure 30 and Figure 32 As shown, in this embodiment, the nail receiving component 40 adopts an integrated structure, which is square in shape and includes a top plate 421, a bottom plate 422 and two side plates 423. The two side plates 423 connect the top plate 421 and the bottom plate 422 respectively. The guide grooves are provided on the two side plates 423 respectively. The stitching nail 60 is located within the space enclosed by the top plate 421, the bottom plate 422 and the two side plates 423. Compared with the first embodiment, this embodiment eliminates the inner seat and other components, and the structure of the nail receiving component 40 is simpler.

[0134] In addition, the nail holder 40 is provided with a through-hole 45, and the lens 741 at the front end of the endoscope tube 74 faces the through-hole 45 to see the field of view in front, so as to observe the operation. The endoscope tube 74 is also provided with an endoscope cavity 742, and a control cable can be installed in the endoscope cavity 742. The control cable can control the clamps and other devices at the front end of the seat 10.

[0135] Example 3

[0136] like Figures 33 to 47 As shown, in this embodiment, the structure of the suture staple 60 is different. The suture staple 60 in this embodiment also includes a clamping head 63, which is provided with an elastic clip. The staple body 62 has a limiting part 621. The staple body 62 corresponds to the clamping head 63. The clamping head 63 is installed on the suture part 31 of the staple body 62, and the tip of the staple body 62 faces the clamping head 63.

[0137] Correspondingly, a clamping head receiving member is provided on the second collision member 30. The clamping head receiving member has a clamping head receiving space inside, and the clamping head 63 is placed in the clamping head receiving space. Specifically, the clamping head receiving member includes a fixed plate 642 at the bottom and a movable plate 643 above the fixed plate 642. A third elastic member 641 is provided between the fixed plate 642 and the movable plate 643. A limiting baffle 644 for limiting the movable plate 643 is provided on the side of the fixed plate 642 and the movable plate 643. There are multiple clamping heads 63, which are stacked on the movable plate 643. When the nail tip is inserted into the clamping head 63, the limiting part 621 at its front end is clamped by the elastic clip of the clamping head 63, thereby achieving the sewing effect. After the first sewing is performed, the second clamping head 63 below is lifted by the action of the third elastic member 641 to facilitate the next sewing operation.

[0138] The suture needle described in this embodiment has a T-shaped structure, which includes a nail plate 612 and a nail body 62 located at the front end of the nail plate 612. The front end of the nail body 62 is provided with a limiting part 621, and the clamping head 63 is provided with an insertion port. When the front end of the nail body 62 is inserted into the clamping head 63, the limiting part 621 of the nail body 62 is clamped by the elastic clip, thereby achieving the suturing effect.

[0139] In this embodiment, since the suture staple 60 does not bend during the suturing process, sufficient travel needs to be ensured during the suturing process. Therefore, a clearance groove 2012 is provided on the inner side of the baffle of the first collision member 20.

[0140] The snap-in structure of the clamping accommodator described in this embodiment is as follows: a snap-in groove 32 is provided on the second collision member 30, and a snap-in plate 645 is provided on the back side of the clamping accommodator. The two sides of the snap-in plate 645 are slidably snapped into the snap-in groove 32 of the second collision member 30.

[0141] The purpose of the above embodiments is to reproduce and derive the technical solution of the present invention by way of example, and to fully describe the technical solution, purpose and effect of the present invention. The purpose is to enable the public to have a more thorough and comprehensive understanding of the disclosure of the present invention, and not to limit the scope of protection of the present invention.

[0142] The above embodiments are not an exhaustive list based on the present invention, and there may be many other embodiments not listed. Any substitutions and improvements made without departing from the concept of the present invention are within the protection scope of the present invention.

Claims

1. A staple-shaped sewing device, characterized in that, It includes a base, a first pair of colliders, a second pair of colliders, and a nail holder, wherein the first pair of colliders and the second pair of colliders are both disposed on the base; A first guide mechanism is provided between at least one of the first collider and the second collider and the base. At least one of the first collider and the second collider is movably disposed on the base through the first guide mechanism, so that the first collider and the second collider move closer to each other or further away from each other. The nail receiver is movably mounted on the first collision member, and a second guide mechanism is provided between the nail receiver and the first collision member; the guide directions of the first guide mechanism and the second guide mechanism are parallel. The nail receiver has a nail body receiving space. The nail receiver is provided with a pressing window and a sewing window communicating with the receiving space. The first collision member is provided with a pressing part, which is opposite to the pressing window. The second collision member is provided with a nail body sewing part, and the sewing window is opposite to the nail body sewing part. A first elastic element is provided between the first colliding element and the nail receiving element; The nail receiving component includes a top plate, a bottom plate, and two side plates. The top plate is located above the bottom plate, and the two side plates connect the top plate and the bottom plate respectively. Guide grooves are provided on the two side plates. The pressing part is inserted into the guide groove and slides with the guide groove to form the second guiding mechanism. The nail receiver is provided with a second elastic element inside, which is located in the lower part of the nail body receiving space.

2. The staple-shaped suture device as described in claim 1, characterized in that, The first guiding mechanism includes a first linear guide portion and a second linear guide portion. The first linear guide portion is disposed on the base body, and the second linear guide portion is disposed on the first collision member and / or the second collision member. The first linear guide portion and the second linear guide portion cooperate with each other.

3. The staple-shaped suture device as described in claim 2, characterized in that, The first linear guide and the second linear guide are mating linear guide rails and linear guide grooves.

4. The staple-shaped suture device as described in claim 3, characterized in that, The first linear guide portion is located on two opposite outer surfaces of the seat body, and the second linear guide portion is located on two opposite inner surfaces of the first colliding member.

5. The staple-shaped suture device as described in claim 1, characterized in that, The second guiding mechanism includes a third linear guiding part and a fourth linear guiding part. The third linear guiding part is disposed on the first colliding member, and the fourth linear guiding part is disposed on the nail receiving member. The third linear guiding part and the fourth linear guiding part cooperate with each other.

6. The staple-shaped suture device as described in claim 1, characterized in that, The first elastic element is a helical spring, and the nail receiving element is disposed in the helical middle region of the first elastic element.

7. The staple-shaped suture device as described in claim 6, characterized in that, The longitudinal projection of the main body of the nail holder is square, and the longitudinal projection of the helical spring is also square.

8. The staple-shaped suture device according to any one of claims 1 to 5, characterized in that, The pressing part is a pressing tongue.

9. The staple-shaped suture device according to any one of claims 1 to 5, characterized in that, An elastic hook is provided on the first colliding member, and the nail receiving member is limited by the elastic hook.

10. The staple-shaped suture device as claimed in claim 9, characterized in that, At least two suture staples are placed inside the staple holder in an overlapping direction.

11. The staple-shaped suture device as claimed in claim 10, characterized in that, The suture staple includes a staple plate and a staple body fixed to the staple plate, with the staple body facing the suture portion of the staple body.

12. The staple-shaped suture device as claimed in claim 11, characterized in that, The nail body suture portion includes an inward concave arc and an outward convex arc, the inward concave arc and the outward convex arc are connected, and the nail tip of the nail body faces the inward concave arc and is offset from one side.

13. The staple-shaped suture device as claimed in claim 11, characterized in that, It also includes a clamping head, and the nail body has a limiting part. The nail body corresponds to the clamping head, which is installed on the stitching part of the nail body, with the nail tip of the nail body facing the clamping head.

14. The staple-shaped suture device as described in claim 13, characterized in that, A clamping head is provided at the nail body stitching part, and a clamping head receiving space is provided inside the clamping head receiving space.

15. The staple-shaped suture device as claimed in claim 14, characterized in that, A third elastic element is provided inside the clamping head receiving space, and the third elastic element is located at the lower part of the clamping head.

16. The stapled stapler as claimed in any one of claims 1 to 5, characterized in that, The nail receiver includes an outer frame and an inner seat. The inner seat is placed inside the outer frame and is locked to the outer frame by a locking member. The nail receiving space is located inside the inner seat.

17. The stapled stapler as claimed in any one of claims 1 to 5, characterized in that, The nail holder has a through hole running vertically through it.

18. The stapled stapler as claimed in any one of claims 1 to 5, characterized in that, The lower part of the base is reduced in size to form an inverted frustum shape.

19. The staple-shaped suture device according to any one of claims 1 to 5, characterized in that, A first pin is provided on the base, and a transmission component is movably mounted on the first pin. The transmission component is provided with a force-applying part and a force-transmitting part, and the force-transmitting part cooperates with the first collision component.

20. The staple-shaped suture device as claimed in claim 19, characterized in that, The force transmission part of the transmission component is provided with a first sliding groove, and the first collision component is provided with a second pin, which cooperates with the first sliding groove.

21. The staple-shaped suture device as claimed in claim 19, characterized in that, It also includes a push-pull component, the front end of which engages with the force-applying part of the transmission component.

22. The staple-shaped suture device as claimed in claim 21, characterized in that, The force-applying part of the transmission component is provided with a second sliding groove, and the front end of the push-pull component is provided with a third pin, which cooperates with the second sliding groove on the transmission component.

23. A nail-shaped sewing device, characterized in that, The device includes a guide tube, an endoscope tube, and the stapled stapler of claim 19. The guide tube has at least a first guide cavity and a second guide cavity. A push-pull member is provided in the first guide cavity, and an endoscope tube is provided in the second guide cavity. The seat is installed at the front end of the endoscope tube, and the front end of the push-pull member cooperates with the force-applying part of the transmission member.

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