Stapler type stitching instrument for endoscope

Abstract

The invention relates to a stapler type suturing instrument for an endoscope, belongs to the technical field of endoscope suturing, and solves the problem that an existing endoscope suturing instrument is difficult to realize rapid suturing of a wound surface in a gastral cavity. A stapler type stitching instrument for an endoscope comprises a stitching instrument shell, a nail plate, stitching nails, a nail disc and an air pressure driving module. The suturing nails are clamped and mounted in suturing nail mounting holes of the nail plate; the pneumatic driving module is used for driving the suturing nail out of the suturing nail mounting hole; the nail plate is fixedly mounted at the end part of the stitching instrument shell and is parallel to the nail disc; when the suturing nail is driven by the pneumatic driving module to be knocked out of the suturing nail mounting hole, the end part of the suturing nail can be impacted with the nail plate and deformed; after the suturing nail deforms, a wound to be sutured can be nailed. By designing the deformable suturing nail and the suturing instrument, rapid nailing type suturing of a gastral cavity wound is achieved, and use is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopic suturing, in particular to an endoscopic stapler-type suturing device. Background Art

[0002] After endoscopic gastrointestinal resection, safe and effective wound closure is crucial for preventing complications, and its effectiveness directly impacts the patient's recovery. Among the current mainstream technologies, metal clipping is relatively simple to use, directly clamping the wound edges with metal clips. However, metal clips have a small clamping area and limited strength, making them inadequate for larger wounds and therefore only suitable for small wounds.

[0003] Traditional suturing techniques rely on a curved needle and grasping forceps. Within the confined space of an endoscopic operation, these techniques require extremely high precision and are difficult to perform. Even the slightest inadvertent error can damage surrounding tissue. Existing technical solutions have limitations in terms of handling larger wounds, ease of use, safety, device compatibility, and learning curve. Therefore, there is an urgent clinical need to develop a new, efficient, safe, easy-to-use, and adaptable endoscopic wound suturing device to improve surgical safety and patient outcomes.

[0004] Based on this, the present invention designs an endoscopic stapler-type suturing device to achieve rapid suturing of gastric cavity wounds. Summary of the Invention

[0005] In view of the above analysis, the present invention aims to provide an endoscopic stapler-type suturing device to solve the problem that existing endoscopic suturing devices are difficult to achieve rapid suturing of large wounds inside the gastric cavity.

[0006] The purpose of the present invention is mainly achieved through the following technical solutions:

[0007] An endoscopic stapler-type suturing device comprises: a stapler housing, a staple plate, suturing staples, a staple tray and an air pressure drive module;

[0008] The suture staples are mounted in the suture staple installation holes of the staple tray; the pneumatic drive module is used to drive the suture staples out of the suture staple installation holes;

[0009] The nail plate is fixedly mounted on the end of the stapler housing and is arranged parallel to the nail disk; when the suture staple is driven out of the suture staple installation hole by the pneumatic drive module, the end of the suture staple can impact the nail plate and deform; after the suture staple is deformed, it can staple the wound to be sutured.

[0010] Furthermore, the suture staple includes: a tail staple ring, a staple column body and a staple head tooth piece; the diameter of the tail staple ring is larger than the diameter of the staple column body; the staple head tooth piece is provided with at least two pieces, and the staple head tooth piece is laterally deformed when the suture staple is squeezed and impacted by the staple plate.

[0011] Furthermore, an annular boss with a high middle and low edges is provided on the nail plate; the annular boss is used to guide the deformation direction of the nail head tooth piece.

[0012] Furthermore, the nail plate is a cylindrical structure.

[0013] Furthermore, the staple disc is rotatably mounted on a staple disc mounting portion at the end of the stapler housing and is detachably connected.

[0014] Furthermore, the axis of the suture staple installation hole is parallel to the axis of the staple tray.

[0015] Furthermore, a plurality of suture staple installation holes are provided on the staple tray, and the plurality of suture staple installation holes are arranged at equal intervals around the central axis of the staple tray.

[0016] Furthermore, a rotation drive assembly is included; the rotation drive assembly is used to drive the nail plate to rotate, thereby being able to switch the suture nails in different suture nail installation holes to be aligned with the annular boss.

[0017] Furthermore, the rotary drive assembly includes: a driving gear, a gear shaft, a driving coil and a rotating winding shaft; an outer gear ring is provided on the outside of the nail plate, and the outer gear ring is engaged with the driving gear; the driving gear is rotatably installed inside the stapler housing through the gear shaft; the driving coil is a ring coil, one end of the driving coil is wound around the gear shaft, and the other end is wound around the rotating winding shaft; the rotating winding shaft is rotatably installed at the operating end of the stapler housing; when the rotating winding shaft rotates, the gear shaft can be pulled to rotate synchronously through the driving coil.

[0018] Furthermore, the driving coil is wound multiple times on the gear shaft and the rotating winding shaft, and the middle portion of the driving coil wound on the gear shaft and the rotating winding shaft is fixed to the gear shaft and the rotating winding shaft by bonding or welding.

[0019] Furthermore, the pneumatic drive module includes: a telescopic push rod, a driving air cavity, an inflation air pump and a vacuum air pump; the inflation air pump is used to inflate the driving air cavity, thereby pushing the telescopic push rod to extend; the vacuum air pump is used to vacuum the driving air cavity, thereby driving the telescopic push rod to retract.

[0020] Furthermore, the telescopic push rod is a two-stage push rod, including: a first push rod and a second push rod; the first push rod is slidably nested in the interior of the driving air cavity and is sealed; the second push rod is slidably nested in the interior of the first push rod and is sealed.

[0021] Furthermore, a circular traction wire installation hole is provided inside the suture device housing; a traction wire is installed in the traction wire installation hole; a spiral traction portion is provided at one end of the traction wire, and a traction handle is provided at the other end.

[0022] The technical solution of the present invention can achieve at least one of the following effects:

[0023] 1. The endoscopic stapler-type suturing device of the present invention uses a pneumatic drive module to drive the suture staples from the staple tray. After being driven out, the suture staples hit the nail plate on the opposite side and bend and deform under the impact with the nail plate. After deformation, the tissues on both sides of the wound surface can be fixed, achieving rapid suturing with high suturing efficiency and being suitable for suturing larger wound surfaces.

[0024] 2. The endoscopic stapler-type stapler of the present invention utilizes an annular drive coil to rotationally drive a drive gear, thereby driving the staple disc to rotate, so that the multiple staple mounting holes on the staple disc are aligned with the staple plate, and the multiple staples can be sequentially driven by the pneumatic drive module to continuously suture the wound surface. In addition, the staple disc and the stapler housing of the present invention are detachably mounted. After a set of staples is used, the stapler can be removed from the endoscope and the staple disc can be disassembled for refilling with staples, thereby meeting the need for continuous use of multiple sets of staples without having to replace the stapler, facilitating rapid suturing of gastric cavity wounds while taking into account health and economics.

[0025] 3. In order to achieve the suturing effect on large wounds, the endoscopic stapler-type suturing device of the present invention is provided with a traction wire, and a spiral traction part is provided at the end of the traction wire. The spiral traction part can be screwed into the tissue to be sutured, pulling the tissue so that it is in an area that can be penetrated by the suture staple.

[0026] 4. The endoscopic stapler-type suturing device of the present invention has the advantages of convenient operation, large closure area, firm fixation effect, and no need for sutures. It can fully meet the increasing clinical demand for endoscopic suturing devices in the practice of digestive endoscopy and further improve the safety of digestive endoscopy.

[0027] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of the present invention will be described in the following description, and some advantages will become apparent from the description or be learned through practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the description and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like parts throughout the drawings.

[0029] Figure 1 It is a structural schematic diagram of the endoscopic stapler-type suture device of the present invention;

[0030] Figure 2 A schematic structural diagram of the suturing end of the endoscopic stapler-type suturing device of the present invention;

[0031] Figure 3 A schematic structural diagram of a stapler housing of an endoscopic stapler of the present invention;

[0032] Figure 4 A partial enlarged view of the suturing end of the stapler housing of the endoscopic stapler of the present invention;

[0033] Figure 5 A partially enlarged view of the operating end of the stapler housing of the endoscopic stapler of the present invention;

[0034] Figure 6 It is a structural schematic diagram of the stapler mounting portion of the endoscopic stapler of the present invention;

[0035] Figure 7 Schematic diagram of the engagement state of the staples and the staple plate of the endoscopic stapler of the present invention;

[0036] Figure 8 It is a front structural schematic diagram of the stapler-type stapler for endoscope of the present invention;

[0037] Figure 9 Schematic diagram of the back structure of the stapler-type stapler for endoscopy of the present invention;

[0038] Figure 10 It is a structural schematic diagram of the traction wire assembly of the endoscopic stapler-type suture device of the present invention;

[0039] Figure 11 It is a structural schematic diagram of the rotary drive assembly of the endoscopic stapler-type suture device of the present invention;

[0040] Figure 12 A partially enlarged view of the rotary drive assembly of the endoscopic stapler-type suture device of the present invention;

[0041] Figure 13 Schematic diagram of the initial state of the suture stapler of the endoscopic stapler of the present invention;

[0042] Figure 14A schematic diagram of a stapler-type stapler for endoscopy of the present invention in a stapling state;

[0043] Figure 15 This is a schematic diagram of the stapling state of the endoscopic stapler-type suture device of the present invention;

[0044] Figure 16 Schematic diagram of the pneumatic driving principle of the endoscopic stapler-type suture device of the present invention;

[0045] Figure 17 The present invention is a schematic diagram of the movement principle of the telescopic push rod of the endoscopic stapler-type suture device.

[0046] Reference numerals:

[0047] 1- Stapler housing; 2- Nail plate; 3- Traction wire; 4- Staple; 5- Nail plate; 6- Air pressure drive module; 7- Rotating handle; 8- Inflation button; 9- Degassing button; 10- Traction handle; 11- Driving gear; 12- Driving coil; 13- Gear shaft; 14- Rotating winding shaft; 15- Spiral traction unit; 101- Nail plate mounting unit; 102- Telescopic push rod; 103- Traction wire mounting hole; 104- Driving air cavity; 105- Inlet air duct; 106-outlet air duct; 107-nail plate mounting groove; 201-annular boss; 202-nail outlet slide; 401-tail nail ring; 402-nail column body; 403-nail head tooth plate; 501-suture nail mounting hole; 502-outer gear ring; 503-rotary positioning shaft; 601-inflating air pump; 602-exhaust air pump; 603-inlet valve; 604-outlet valve; 1021-first push rod; 1022-second push rod. DETAILED DESCRIPTION

[0048] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0049] Example 1

[0050] A specific embodiment of the present invention discloses an endoscopic stapler-type suture device, such as Figure 1 、 Figure 2As shown, the stapler comprises: a stapler housing 1, a staple plate 2, a staple 4, a staple tray 5 and an air pressure drive module 6; the staple 4 is snap-fitted into a staple mounting hole 501 of the staple tray 5; the air pressure drive module 6 is used to drive the staple 4 out of the staple mounting hole 501; the staple plate 2 is fixedly mounted at the end of the stapler housing 1 and is arranged parallel to the staple tray 5; when the staple 4 is driven out of the staple mounting hole 501 by the air pressure drive module 6, the end of the staple 4 can impact the staple plate 2 and deform; after the deformation, the staple 4 can achieve stapling of the wound to be sutured.

[0051] In a specific embodiment of the present invention, Figure 13 、 Figure 14 As shown, the suture nail 4 includes: a tail nail ring 401, a nail column body 402 and a nail head tooth piece 403; the diameter of the tail nail ring 401 is larger than the diameter of the nail column body 402; the nail head tooth piece 403 is provided with at least two pieces, and the nail head tooth piece 403 is laterally deformed when the suture nail 4 is squeezed and impacted by the nail plate 2.

[0052] Preferably, three nail head teeth 403 are arranged at equal intervals along the circumferential direction of the nail column body 402; the nail head teeth 403 are thin sheet structures with pointed ends.

[0053] Further, if Figure 4 、 Figure 7 As shown, an annular boss 201 with a high middle and low edges is provided on the nail plate 2 ; the annular boss 201 is used to guide the deformation direction of the nail head tooth piece 403 .

[0054] Specifically, if Figure 7 As shown, the annular boss 201 is a mountain-shaped structure with a high middle and low edges.

[0055] During implementation, after the suture staple 4 passes through the tissue to be sutured, the nail head tooth piece 403 at its end contacts the annular curved surface of the annular boss 201, and the nail head tooth piece 403 will slide along the side of the annular boss 201, and then bend and deform. After deformation, it can restrict human tissue, so that the tissue around the wound can be confined between the deformed nail head tooth piece 403 and the tail nail ring 401, thereby achieving rapid stapling of the wound.

[0056] In this embodiment, the deformation of the nail head teeth 403 is guided by providing an annular boss 201, so that a certain and reliable deformation mode occurs after the suture nail 4 impacts the nail plate 2, ultimately ensuring the stapling effect of the suture nail 4 on the wound tissue.

[0057] Further, if Figure 7As shown, a nail ejection slot 202 is provided on the upper side of the annular boss 201 ; after one of the suture nails 4 has completed suturing the wound surface, retracting the suture device can make the suture nail 4 slide out of the nail ejection slot 202 , thereby releasing the suture nail 4 .

[0058] Further, if Figure 8 、 Figure 9 As shown, the staple tray 5 is a cylindrical structure; the staple tray 5 is rotatably mounted on the staple tray mounting portion 101 at the end of the stapler housing 1 and is detachably connected; the axis of the staple mounting hole 501 is parallel to the axis of the staple tray 5; a plurality of staple mounting holes 501 are provided on the staple tray 5, and the plurality of staple mounting holes 501 are evenly spaced around the central axis of the staple tray 5.

[0059] like Figure 6 、 Figure 9 As shown, a circular concave nail plate mounting groove 107 is provided on the inner side of the nail plate mounting portion 101; a protruding rotation and positioning shaft 503 is provided on the side of the nail plate 5; the rotation and positioning shaft 503 is mounted in the nail plate mounting groove 107 via a bearing. Specifically, a bearing is provided in the nail plate mounting groove 107, and the outer ring of the bearing is fixed to the nail plate mounting groove 107 by bonding or welding; the inner ring of the bearing is plugged into the rotation and positioning shaft 503 on the side of the nail plate 5.

[0060] During implementation, the staple tray 5 is detachably connected to the staple tray mounting portion 101. By engaging or removing the rotational positioning shaft 503 from the inner ring of the bearing, the staple tray 5 can be rotationally connected or disconnected from the stapler housing 1, thereby enabling the replenishment of staples 4 into the staple mounting holes 501 of the staple tray 5. By providing a detachable mounting arrangement between the staple tray 5 and the stapler housing 1, the present invention allows the stapler to be removed from the endoscope after a set of staples 4 has been used, and the staple tray 5 can be removed to reload the staples 4. This allows for the continuous use of multiple sets of staples without having to replace the stapler, facilitating rapid and complete suturing of gastric wounds while maintaining a healthy and economical approach.

[0061] In a specific embodiment of the present invention, a rotation drive assembly is further included; the rotation drive assembly is used to drive the nail plate 5 to rotate, thereby switching the suture nails 4 in different suture nail installation holes 501 to be aligned with the annular boss 201.

[0062] Further, if Figure 11 、 Figure 12As shown, the rotary drive assembly includes: a driving gear 11, a gear shaft 13, a driving coil 12 and a rotating winding shaft 14; an outer gear ring 502 is provided on the outside of the nail plate 5, and the outer gear ring 502 is engaged with the driving gear 11; the driving gear 11 is rotatably mounted inside the stapler housing 1 through the gear shaft 13; the driving coil 12 is a ring coil, one end of the driving coil 12 is wound around the gear shaft 13, and the other end is wound around the rotating winding shaft 14; the rotating winding shaft 14 is rotatably mounted on the operating end of the stapler housing 1; when the rotating winding shaft 14 rotates, it can pull the gear shaft 13 to rotate synchronously through the driving coil 12.

[0063] Further, if Figure 12 As shown, the driving coil 12 is wound multiple times on the gear shaft 13 and the rotating winding shaft 14, and the middle part of the driving coil 12 wound on the gear shaft 13 and the rotating winding shaft 14 is fixed to the gear shaft 13 and the rotating winding shaft 14 by bonding or welding.

[0064] Specifically, if Figure 5 As shown, the operating end of the stapler housing 1 is also provided with a rotating handle 7; the rotating handle 7 is rotatably mounted on the stapler housing 1 and fixedly connected to the internal rotating winding shaft 14; when the rotating handle 7 is rotated, it can drive the internal rotating winding shaft 14 to rotate, and then the driving coil 12 on one side is wound around the rotating winding shaft 14, and the driving coil 12 on the other side is unwound from the rotating winding shaft 14, thereby realizing the rotation of the driving coil 12; during the rotation of the rotating winding shaft 14, the driving coil 12 on one side wound around the rotating winding shaft 14 pulls the gear shaft 13 to rotate, and at the same time, the driving coil 12 on the side unwound from the rotating winding shaft 14 gradually rotates onto the gear shaft 13, thereby realizing the synchronous rotation of the gear shaft 13, the driving gear 11, the rotating winding shaft 14 and the rotating handle 7.

[0065] In this embodiment, a ring-shaped driving coil 12 is used to rotationally drive the driving gear 11, which can drive the nail plate 5 to rotate, so that the multiple suture nail installation holes 501 on the nail plate 5 are aligned with the nail plate 2, and then the pneumatic driving module 6 can sequentially drive multiple suture nails to continuously suture the wound surface.

[0066] Preferably, four suture staples 4 are installed on the staple tray 5 , and one suture staple 4 is switched to align with the annular boss 201 on the staple plate 2 every time it rotates 90°.

[0067] Preferably, the meshing transmission ratio between the driving gear 11 and the outer ring gear 502 is set to 4:1; that is, each rotation of the driving gear 11 can drive the outer ring gear 502 to rotate a quarter of a circle (90°).

[0068] In a specific embodiment of the present invention, Figure 16 As shown, the pneumatic drive module includes: a telescopic push rod 102, a driving air cavity 104, an inflation air pump 601 and an exhaust air pump 602; the inflation air pump 601 is used to inflate the driving air cavity 104, thereby pushing the telescopic push rod 102 out; the exhaust air pump 602 is used to exhaust the driving air cavity 104, thereby driving the telescopic push rod 102 to retract.

[0069] like Figure 16 As shown, the driving air chamber 104 is connected to the inflation air pump 601 through the air inlet duct 105, and is connected to the exhaust air pump 602 through the air outlet duct 106. Furthermore, an air inlet valve 603 is provided on the air inlet duct 105, and an air outlet valve 604 is provided on the air outlet duct 106; when implemented,

[0070] Furthermore, the air pressure driving module 6 integrates an air pressure control circuit board, and controls the inflation pump 601 to inflate the driving air cavity 104, the exhaust pump 602 to exhaust the driving air cavity 104, and the opening and closing of the air inlet valve 603 and the air outlet valve 604 through the air pressure control circuit board.

[0071] like Figure 3 As shown, an inflation button 8 and an exhaust button 9 are provided at the operating end of the stapler housing 1, which are respectively used to control the inflation and deflation of the inflation pump 601 and the exhaust pump 602, as well as the opening and closing of the air inlet valve 603 and the air outlet valve 604. Specifically, when the inflation button 8 is pressed, the air inlet valve 603 is opened, the air outlet valve 604 is closed, and the inflation pump 601 quickly inflates the driving air cavity 104, thereby driving the suture staple 4 to be driven out. When the exhaust button 9 is pressed, the air outlet valve 604 is opened, the air inlet valve 603 is closed, and the exhaust pump 602 quickly exhausts the driving air cavity 104, thereby driving the telescopic push rod 102 to retract under the action of negative pressure to avoid affecting the rotation of the staple tray 5.

[0072] Further, if Figure 17 As shown, the telescopic push rod 102 is a two-stage push rod, including: a first push rod 1021 and a second push rod 1022; the first push rod 1021 is slidably nested inside the driving air cavity 104 and is in sealed contact; the second push rod 1022 is slidably nested inside the first push rod 1021 and is in sealed contact.

[0073] Specifically, when the telescopic push rod 102 is extended, the suture nail 4 in the suture nail installation hole 501 can be driven out. When the telescopic push rod 102 is retracted, the nail plate 5 can rotate relative to the nail plate installation part 101, and then the next suture nail 4 can be switched for suturing.

[0074] In another embodiment of the present invention, a protruding annular sealing ring is provided on the outside of the driving air cavity 104. When the staple mounting holes 501 on the staple tray 5 are aligned with the driving air cavity 104, the driving air cavity 104 can be inflated by an air pump 601 to achieve pneumatic ejection of the staples 4. In this embodiment, only one air pump 601 is required, and the telescopic push rod 102 is not required.

[0075] In a specific embodiment of the present invention, Figure 5 As shown, a traction wire installation hole 103 is provided inside the stapler housing 1 ; the traction wire installation hole 103 is installed in the traction wire installation hole 103 .

[0076] Specifically, if Figure 10 As shown, a spiral traction portion 15 is provided at one end of the traction wire 3, and a traction handle 10 is provided at the other end.

[0077] Furthermore, two traction wire mounting holes 103 are arranged side by side along the axial direction of the nail plate 5; when the wound surface is large, two traction wires 3 are needed to pull the tissues on both sides of the wound surface, and two traction wires 3 are installed in the two traction wire mounting holes 103 and screwed into the tissues, and the tissue structures on both sides of the wound surface are pulled between the nail plate 5 and the nail plate 2, and the suture nails 4 are driven out to achieve stapling of the tissues on both sides.

[0078] The use process of the endoscopic stapler of the present invention is as follows:

[0079] First, a plurality of suture staples 4 are loaded into the staple tray 5 , and the staple tray 5 is rotatably mounted on the staple tray mounting portion 101 at the end of the stapler housing 1 .

[0080] Furthermore, the stapler is inserted into the working channel of a digestive endoscope (abbreviated as endoscope), and the stapler is sent into the gastric cavity through the endoscope to the wound position to be sutured.

[0081] Furthermore, the traction wire 3 is inserted into the traction wire installation hole 103, and the traction wire 3 is rotated to screw the spiral traction portion 15 at its end into the tissue beside the wound surface; one or two traction wires 3 can be installed according to actual needs.

[0082] Furthermore, by pulling the traction handle 10 at the operating end, the tissue near the wound surface is pulled to be located between the staple disc 5 and the staple plate 2 of the stapler.

[0083] Further, the inflation button 8 is pressed to inflate the driving air chamber 104 through the inflation air pump 601, thereby pushing the telescopic push rod 102 to extend quickly, and the telescopic push rod 102 is aligned with the suture nails 4 inside the nail plate 5, and the suture nails 4 in the nail plate 5 are pushed out by the telescopic push rod 102 (pushed out by the telescopic push rod 102).

[0084] Furthermore, after the suture nail 4 is driven out, it impacts the nail plate 2, and the nail head tooth piece 403 at the end of the suture nail 4 is bent and deformed outward under the guidance of the annular boss 201 on the nail plate 2, and the suture nail 4 can staple the wound tissue after deformation; Figure 15 shown.

[0085] Furthermore, the traction wire 3 is rotated to separate it from the wound tissue; and the stapler is dragged away from the wound, so that the stapler 4 stapled to the wound is separated from the stapler main structure.

[0086] Furthermore, the rotating handle 7 at the rotating operating end drives the rotating winding shaft 14 to rotate; the gear shaft 13 is pulled to rotate by the driving coil 12; the gear shaft 13 drives the driving gear 11 to rotate, and the nail plate 5 is driven to rotate by the driving gear 11 and the outer gear ring 502 on the outside of the nail plate 5, switching the next suture nail 4 to be aligned with the annular boss 201 on the nail plate 2, and then repeating the above steps to perform the suturing operation of the next suture nail 4.

[0087] The suturing device of this embodiment has the advantages of convenient operation, large closure area, firm fixation effect, and no need for sutures, and can fully meet the increasing clinical demand for endoscopic suturing devices in the practice of digestive endoscopy.

[0088] It is worth noting that:

[0089] The stapler-type stapler for endoscopy of the present invention is detachably connected to the stapler housing 1. When a group of staples is used up, the stapler can be taken out of the endoscope and the stapler tray 5 can be removed to refill the staples 4, so as to meet the demand of continuous use of multiple groups of staples 4 without replacing the stapler, thereby facilitating rapid suturing of gastric cavity wounds while taking into account health and economics.

[0090] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. An endoscopic stapler-type suture device, characterized in that: include: Stapler housing (1), staple plate (2), suturing staples (4), staple tray (5) and pneumatic drive module (6); The suture nail (4) is mounted in the suture nail installation hole (501) of the nail plate (5); the air pressure driving module (6) is used to drive the suture nail (4) out of the suture nail installation hole (501); The nail plate (2) is fixedly mounted on the end of the stapler housing (1) and is arranged parallel to the nail plate (5); when the suture nail (4) is driven out of the suture nail installation hole (501) by the air pressure drive module (6), the end of the suture nail (4) can impact the nail plate (2) and deform; after the deformation, the suture nail (4) can achieve stapling of the wound to be sutured.

2. The endoscopic stapler according to claim 1, characterized in that: The suturing nail (4) comprises: a tail nail ring (401), a nail column body (402) and a nail head tooth piece (403); the diameter of the tail nail ring (401) is larger than the diameter of the nail column body (402); the nail head tooth piece (403) is provided with at least two pieces, and when the suturing nail (4) and the nail plate (2) are squeezed and impacted, the nail head tooth piece (403) is laterally deformed.

3. The endoscopic stapler according to claim 1 or 2, characterized in that: An annular boss (201) with a high middle and low edges is provided on the nail plate (2); the annular boss (201) is used to guide the deformation direction of the nail head tooth piece (403).

4. The endoscopic stapler according to claim 3, characterized in that: The nail plate (5) is a cylindrical structure.

5. The endoscopic stapler according to claim 4, characterized in that: The staple disc (5) is rotatably mounted on a staple disc mounting portion (101) at the end of the stapler housing (1) and is detachably connected.

6. The endoscopic stapler according to claim 5, characterized in that: The axis of the suture staple installation hole (501) is parallel to the axis of the staple plate (5).

7. The endoscopic stapler according to claim 5 or 6, characterized in that: A plurality of suture nail installation holes (501) are provided on the nail plate (5), and the plurality of suture nail installation holes (501) are arranged at equal intervals around the central axis of the nail plate (5).

8. The endoscopic stapler according to claim 1, characterized in that: A traction wire installation hole (103) is provided inside the stapler housing (1).

9. The endoscopic stapler according to claim 8, characterized in that: The traction wire (3) is installed in the traction wire installation hole (103).

10. The endoscopic stapler according to claim 9, characterized in that: A spiral traction portion (15) is provided at one end of the traction wire (3), and a traction handle (10) is provided at the other end.

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