Rotating shaft type defect closure device

Abstract

The application provides a hinge type defect closure device, which comprises a fixing frame, a control device, a plurality of suture nails and a suture thread. The fixing frame comprises a frame body and a mounting pipe, the mounting pipe comprises a connecting pipe and a fixing pipe, and the fixing pipe is provided with first elastic sheets. The control device comprises a control piece and two limiting sliding plates, and the limiting sliding plates are provided with a plurality of second elastic sheets. The plurality of suture nails are sleeved on the whole formed by the fixing pipe and the limiting sliding plates, and the plurality of suture nails are sequentially clamped between the first elastic sheets and the second elastic sheets. When the suture nail is clamped in the clamping position, it cannot be continuously pushed, so that the situation that the plurality of suture nails are pushed out of the fixing pipe due to misoperation is avoided, in addition, only after the previous suture nail is separated from the clamping position at the front end, the next suture nail can enter the clamping position at the front end, so that each suture nail of the hinge type defect closure device is accurately released in sequence, and the suture precision of the hinge type defect closure device is ensured.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a rotating shaft type defect closure device. Background Technology

[0002] Minimally invasive endoscopic surgery, performed through natural cavities, is widely used due to its minimal trauma and rapid recovery. Wound closure is a common challenge during minimally invasive surgery. Devices for wound closure under flexible endoscopy have limitations, creating a need for a device similar to those used in open abdominal surgery that closes the wound with sutures. Existing techniques cannot perform continuous suturing in a single procedure, requiring multiple installations of the suture device. Furthermore, when anchoring and releasing the sutures, multiple sutures may be released or none may be released at all, indicating a lack of sequential release accuracy and impacting surgical progress. Additionally, the complex structure and cumbersome operation of existing devices further complicate the surgical process. Summary of the Invention

[0003] The purpose of this application is to provide a simple and easy-to-operate rotating shaft type defect closure device.

[0004] To achieve the above objectives, this application provides a pivot-type defect closure device, comprising: a fixing frame, the fixing frame including a frame body and a mounting tube, the mounting tube including a connecting tube and a fixing tube connected together, the connecting tube being connected to the fixing frame, and the fixing tube including two oppositely arranged first surfaces and two oppositely arranged second surfaces, with a plurality of first spring pieces equally spaced on the two first surfaces, and the plurality of first spring pieces on the two first surfaces being symmetrical about the axis of the mounting tube, each first spring piece including a oppositely arranged fixed end and a free end, the fixed end being connected to the mounting tube and disposed adjacent to the frame body, and the free end extending away from the frame body along the axial direction of the mounting tube; and a control device, the control device including a connected control component and two limiting slides, the two limiting slides being symmetrically arranged on both sides of the control component, and a plurality of second spring pieces equally spaced on the limiting slides. The spring is inclined relative to the limiting slide plate, and the second spring extends axially away from the frame along the mounting tube. The control member is disposed on the mounting tube and can slide on the mounting tube. One end of the control member protrudes from the frame. The two limiting slide plates are slidably disposed on the two second surfaces respectively. A plurality of suture pins are stacked sequentially on the integral formed by the fixing tube and the two limiting slide plates. The mounting tube can drive the suture pins to rotate. Each suture pin is engaged between the first spring and the second spring. The first spring abuts against the end of the suture pin near the frame, and the second spring is engaged on the end of the suture pin away from the frame. A suture thread is connected to the plurality of suture pins. The suture thread is fixedly connected to the suture pin farthest from the frame. The other suture pins can slide on the suture thread.

[0005] As described above, in the pivot-type defect closure device, the mounting tube has a through hole; the control element is a control line, one end of which extends into the through hole and one end of which protrudes from the frame; guide holes are respectively provided on the two second surfaces, and the guide holes are located adjacent to the connecting tube, and the length of the guide hole is not less than the distance between two adjacent second spring pieces; the control line is connected to the two limiting slide plates through a connecting shaft, and the two ends of the connecting shaft are respectively located in the two guide holes and can slide within the guide holes.

[0006] In the rotating shaft type defect closure device described above, the guide hole passes through the end of the fixed tube that is connected to the connecting tube in the axial direction of the fixed tube.

[0007] In the rotating shaft type defect closure device described above, the control component is a control tube, which is sleeved on the mounting tube.

[0008] As described above, the pivot-type defect closure device has a plurality of clearance holes on the first surface, and each first spring piece is correspondingly provided with one of the clearance holes. One end of the first spring piece is connected to the wall of the clearance hole, and the other end of the first spring piece protrudes from the fixing tube. In the axial direction of the mounting tube, the length of the first spring piece is less than the length of the clearance hole.

[0009] As described above, in the pivot-type defect closure device, the suture pin includes a base, a spiral needle, and a retaining ring; two engaging structures that engage with the second spring are symmetrically arranged on the base; two engaging grooves that engage with the first spring are symmetrically arranged on the base; an arc-shaped groove is provided on the base, and the arc-shaped groove is arranged circumferentially on the base; the retaining ring is sleeved on the base and located within the arc-shaped groove; a gap for the suture to pass through is provided between the arc-shaped groove and the base.

[0010] In the aforementioned rotating shaft type defect closure device, a slit is provided on the fixing tube.

[0011] In the rotating shaft type defect closure device described above, each of the two second surfaces is provided with a sliding groove, and the two limiting slide plates are slidably disposed in the two sliding grooves.

[0012] In the rotating shaft type defect closure device described above, the outer contour shape of the projection of the fixed tube on the projection plane is quadrilateral, and the projection plane is a plane perpendicular to the axis of the fixed tube.

[0013] As described above, the pivot-type defect closure device includes a frame comprising a main body, a guide rod, and a support portion. The guide rod is located between the main body and the support portion and is connected to both the main body and the support portion. The pivot-type defect closure device further includes a movable portion disposed on the guide rod and capable of moving on the guide rod, and the movable portion is connected to one end of the control component. A spring is disposed on the guide rod and supported between the movable portion and the support portion.

[0014] Compared with existing technologies, the above technical solution has the following advantages:

[0015] Multiple suture pins are mounted on the outer surface of the fixation tube. All suture pins are sequentially engaged between the first and second spring clips. The spiral needle tip of the suture pin at the very front of the fixation tube protrudes from the tube. The suture pin is then anchored to its corresponding position on the wound by rotating the fixation frame. Next, dragging the control component moves the limiting slide, moving the second spring clip that engages with the previous suture pin onto the next suture pin and engaging it. Dragging the fixation frame then allows the suture pin to detach from the fixation tube. Finally, pushing the control component allows it to... The limit slide moves the remaining sutures along the fixing tube. When the sutures reach the set position, all the sutures are engaged between the first and second springs. At this time, the spiral needle of the suture at the front end of the fixing tube protrudes from the fixing tube. This process is repeated to anchor multiple sutures to the corresponding positions on the wound. Then, the sutures are tightened by sutures. The multiple sutures drive the surrounding human tissue to suture the wound. This allows the rotating defect closure device to suture the wound after entering the human body once, improving the efficiency of wound suturing. The aforementioned structure ensures that each suture pin is engaged in a locking position formed by a first and a second spring. Once the suture pin is engaged, the control device cannot be pushed further, preventing accidental ejection of multiple suture pins from the fixing tube. Furthermore, only after the previous suture pin has disengaged from the frontmost locking position can the next suture pin enter the frontmost locking position. This allows each suture pin of the rotating defect closure device to be released precisely and sequentially, thereby ensuring the suturing accuracy and safety of the rotating defect closure device and increasing the product's market competitiveness. Attached Figure Description

[0016] The following figures are intended only to illustrate and explain this application and do not limit the scope of this application. Wherein:

[0017] Figure 1 This is an exploded structural diagram of the first embodiment of the rotating shaft type defect closure device described in this application;

[0018] Figure 2 This is a partial structural schematic diagram of the mounting pipe described in this application;

[0019] Figure 3 yes Figure 2 A schematic diagram of the structure of the fixed tube shown in the figure;

[0020] Figure 4 This is a schematic diagram of the limiting slide plate described in this application;

[0021] Figure 5 yes Figure 1 A cross-sectional view of the pivot-type defect closure device shown from a first perspective.

[0022] Figure 6 yes Figure 5 Enlarged structural diagram of section A in the middle;

[0023] Figure 7a yes Figure 1 A cross-sectional view of the rotating shaft-type defect closure device shown from a second perspective.

[0024] Figure 7b yes Figure 7a Enlarged structural diagram of section B in the middle;

[0025] Figure 7c yes Figure 7a Enlarged structural diagram of section C;

[0026] Figure 8 yes Figure 5 A schematic diagram of the rotating shaft-type defect closure device in the state where the suture pin has fallen off;

[0027] Figure 9 yes Figure 8 Enlarged structural diagram of section D in the middle;

[0028] Figure 10 yes Figure 8 Enlarged structural diagram of section E;

[0029] Figure 11 This is a schematic diagram of the structure of the suture staple described in this application;

[0030] Figure 12 This is a partial structural schematic diagram of the second embodiment of the rotating shaft type defect closure device described in this application;

[0031] Figure 13 yes Figure 12 The diagram shows the exploded structure.

[0032] Explanation of icon numbers:

[0033] 10. Fixing frame; 11. Frame body; 111. Main body; 112. Guide rod; 113. Support part; 12. Mounting tube; 121. Connecting tube; 122. Fixing tube; 123. First spring; 124. Guide hole; 125. Clearance hole; 126. Cutting slit; 20. Control device; 21. Control line; 22. Limiting slide plate; 23. Second spring; 24. Connecting shaft; 25. Control tube; 251. Connecting part; 30. Seam staple; 31. Base body; 32. Spiral needle; 33. Fixing ring; 34. Clip hole; 35. Clip groove; 36. Arc groove; 40. Sewing thread; 51. Moving part; 52. Spring; 60. Connector; 70. Protective tube. Detailed Implementation

[0034] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present application will become clearer and more apparent.

[0035] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments. Although various aspects of embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated otherwise.

[0036] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other. The following discussion provides multiple embodiments of this application. Although each embodiment represents a single combination of the application, different embodiments of this application can be substituted or combined; therefore, this application can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment includes A, B, and C, and another embodiment includes a combination of B and D, then this application should also be considered to include embodiments containing one or more other all other possible combinations of A, B, C, and D, even if such embodiments are not explicitly described in the following text. Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0037] Example 1

[0038] like Figures 1 to 11 As shown, the rotating shaft type defect closure device provided in this application includes: a fixing frame 10, a control device 20, a plurality of suture staples 30 and sutures 40.

[0039] like Figures 1 to 3As shown, the mounting frame 10 includes a frame body 11 and a mounting tube 12. The mounting tube 12 has a through hole and includes a connecting tube 121 and a fixing tube 122 connected to each other. The connecting tube 121 is connected to the mounting frame 10, and the fixing tube 122 includes two oppositely arranged first surfaces and two oppositely arranged second surfaces. Multiple first spring pieces 123 are equally spaced on the two first surfaces. The multiple first spring pieces 123 on the two first surfaces are symmetrical about the axis of the mounting tube 12. The first spring piece 123 includes a fixed end and a free end that are oppositely arranged. The fixed end is connected to the mounting tube 12 and is located adjacent to the frame body 11. The free end extends away from the frame body 11 along the axial direction of the mounting tube 12. In one specific embodiment of this application, the connecting pipe 121 may be a spring tube. The connecting pipe 121 and the fixing pipe 122 are connected by a connector 60. Specifically, one end of the connector 60 is inserted into the connecting pipe 121 and welded to it, and one end of the spring tube is inserted into the other end of the connector 60 and welded to it. Alternatively, the connecting pipe 121 and the fixing pipe 122 are respectively inserted into both ends of the connector 60 and welded to it. In another embodiment of this application, the outer contour shape of the projection of the fixing pipe 122 on the projection plane is quadrilateral, and the projection plane is a plane perpendicular to the axis of the fixing pipe 122.

[0040] like Figure 1 and Figure 4 As shown, the control device 20 includes a connected control line 21 and two limiting slide plates 22, which are symmetrically arranged on both sides of the control line 21. Multiple second spring pieces 23 are evenly spaced on the limiting slide plates 22, and are inclined relative to the limiting slide plates 22. The second spring pieces 23 extend along the axial direction of the mounting tube 12 away from the frame 11. One end of the control line 21 extends into the through hole, and the other end protrudes from the frame 11. The two limiting slide plates 22 are slidably mounted on two second surfaces, and each limiting slide plate 22 is connected to one end of the control line 21. The control line is made of steel wire.

[0041] like Figure 1 As shown, multiple suture pins 30 are stacked sequentially on the integral structure consisting of the fixing tube 122 and two limiting slide plates 22. The mounting tube 12 can drive the suture pins 30 to rotate. Each suture pin 30 is engaged between the first spring plate 123 and the second spring plate 23. The first spring plate 123 presses against the end of the suture pin 30 near the frame 11, and the second spring plate 23 is engaged on the end of the suture pin 30 away from the frame 11.

[0042] like Figure 1 As shown, the suture 40 is connected to a plurality of suture pins 30, and the suture 40 is fixedly connected to the suture pin 30 furthest from the frame 11, while the other suture pins 30 can slide on the suture 40.

[0043] The rotating shaft type defect closure device provided in this application, such as Figures 5 to 7c As shown, multiple suture staples 30 are provided on the outer surface of the fixation tube 122. All suture staples 30 are engaged between the first spring piece 123 and the second spring piece 23. The spiral needle tip 32 of the suture staple 30 located at the foremost end of the fixation tube 122 protrudes from the fixation tube 122. Then, the suture staple 30 is anchored to the corresponding position on the wound by rotating the fixation frame 10. Figures 8 to 10 As shown, drag the control line 21, which moves the limiting slide plate 22, thereby moving the second spring piece 23, which cooperates with the previous suture pin 30, onto the next suture pin 30 and engaging with it. Then drag the fixing bracket 10 to allow the suture pin 30 to fall off the fixing tube 122. Then push the control line 21, which, through the limiting slide plate 22, moves the remaining suture pins 30 as a whole on the fixing tube 122. When the suture pins 30 reach the set position, all the suture pins 30 are engaged. Between the first spring 123 and the second spring 23, the suture staple 30 located at the foremost end of the fixing tube 122 is fixed to the fixing tube 122. At this time, the spiral needle 32 of the foremost suture staple 30 protrudes from the fixing tube 122. Similarly, multiple suture staples 30 are anchored at the corresponding positions on the wound surface, and then the multiple suture staples 30 are tightened by the suture 40. The multiple suture staples 30 drive the human tissue around the wound to suture the wound, realizing that the rotating shaft type defect closure device can suture the wound surface after entering the human body once, thus improving the suturing efficiency of the wound surface. The above structure ensures that each suture pin 30 is engaged in a locking position formed by a first spring 123 and a second spring 23. Once the suture pin 30 is engaged in the locking position, the control device 20 cannot be pushed further, thus preventing accidental pushing of multiple suture pins 30 out of the fixing tube 122. In addition, only after the previous suture pin 30 has disengaged from the frontmost locking position can the next suture pin 30 enter the frontmost locking position. This ensures that each suture pin 30 of the rotating shaft defect closure device is released accurately and sequentially, thereby guaranteeing the suturing accuracy and safety of the rotating shaft defect closure device and increasing the product's market competitiveness.

[0044] like Figure 1 As shown, in one embodiment of this application, the frame 11 includes a main body 111, a guide rod 112, and a support part 113.

[0045] The guide rod 112 is located between the main body 111 and the support part 113, and is connected to the main body 111 and the support part 113 respectively.

[0046] The rotating shaft type defect closure device also includes: a moving part 51 and a spring 52.

[0047] The movable part 51 is provided on the guide rod 112 and can move on the guide rod 112, and the movable part 51 is connected to one end of the control member (control line 21).

[0048] Spring 52 is mounted on guide rod 112 and supported between moving part 51 and support part 113.

[0049] During the process of moving the second spring 23, which cooperates with the previous suture nail 30, onto the next suture nail 30, the moving part 51 moves along the guide rod 112 and compresses the spring 52. After the second spring 23 is engaged with the next suture nail 30, the drag force on the moving part 51 is removed. Under the action of the spring force of the spring 52, the control line 21 drives multiple suture nails 30 to move as a whole on the fixed tube 122. When the suture nail 30 moves to the set position, all the suture nails 30 are engaged between the first spring 123 and the second spring 23, thereby fixing the suture nail 30 at the front end of the fixed tube 122 to the fixed tube 122. At this time, the spiral needle head 32 of the front end suture nail 30 protrudes from the fixed tube 122. The above structure is simple, the operation is simple, and the control device 20 can be automatically reset, thereby improving the user comfort of the product.

[0050] like Figure 1 As shown, in one embodiment of this application, the rotating shaft type defect closure device further includes a protective tube 70.

[0051] The protective tube 70 is fitted onto the outside of the whole consisting of the suture nail 30 and part of the installation tube 12.

[0052] On the one hand, it protects the suture staple 30, reducing the probability of the suture staple 30 being damaged during operation, thereby ensuring the reliability of the suture staple 30 in use; on the other hand, when the rotating defect closure device is inserted into the human body, it avoids the situation where the suture staple 30 scratches human tissue.

[0053] like Figure 2 and Figure 3 As shown, in one embodiment of this application, guide holes 124 are respectively provided on two second surfaces, and the guide holes 124 are provided adjacent to the connecting pipe 121. The length of the guide hole 124 is not less than the distance between two adjacent second spring pieces 23, which ensures precise engagement.

[0054] The control line 21 is connected to two limiting slide plates 22 via a connecting shaft 24, and the two ends of the connecting shaft 24 are respectively located in two guide holes 124 and can slide within the guide holes 124.

[0055] The cooperation between the guide hole 124 and the connecting shaft 24 guides and limits the movement of the limiting slide plate 22 on the fixed tube 122, enabling the limiting slide plate 22 to move precisely on the fixed tube 122 and accurately engage with the suture pin 30. This ensures that the second spring 23 can smoothly engage with the suture pin 30, thereby guaranteeing that the suture pin 30 can be released accurately one by one, avoiding the situation where the control line 21 is pushed too far, causing multiple suture pins 30 to be pushed out of the fixed tube 122 at once.

[0056] like Figure 3 As shown, in one embodiment of this application, in the axial direction of the fixed tube 122, the guide hole 124 penetrates the end of the fixed tube 122 that is connected to the connecting tube 121.

[0057] The above structure creates an opening in the guide hole 124 at the end of the fixed tube 122. During assembly, the connecting shaft 24 only needs to be inserted into the guide hole 124 through the opening. The above assembly method is simple and improves the assembly efficiency of the product.

[0058] like Figure 2 and Figure 3 As shown, in one embodiment of this application, a plurality of clearance holes 125 are provided on the first surface, and each first spring piece 123 is correspondingly provided with a clearance hole 125. One end of the first spring piece 123 is connected to the hole wall of the clearance hole 125, and the other end of the first spring piece 123 protrudes out of the fixing tube 122.

[0059] In the axial direction of the mounting tube 12, the length of the first spring piece 123 is less than the length of the clearance hole 125.

[0060] The above structure simplifies the processing of the first spring 123, facilitates the shaping of the first spring 123, makes the first spring 123 easier to process, thereby improving the production efficiency of the product and reducing the production cost of the product.

[0061] like Figure 2 and Figure 3 As shown, in one embodiment of this application, a slit 126 is provided between the two first elastic pieces 123 on the fixing tube 122. The slit 126 gives the fixing tube 122 a certain degree of elasticity. The shape of the slit 126 can be arbitrary, such as spiral or strip-shaped. This allows the fixing tube 122 to conform to the curvature of the endoscope so that the rotating defect closure device can pass through the endoscope working channel into the human body and perform suturing operations.

[0062] like Figure 11 As shown, in one embodiment of this application, the suture staple 30 includes a base 31, a spiral needle 32, and a retaining ring 33.

[0063] Two snap-fit ​​structures are symmetrically arranged on the base 31 to engage with the second spring piece 23. The snap-fit ​​structure can be a snap-fit ​​hole 34, in which the second spring piece 23 can be snapped. Alternatively, the base 31 can be provided with a step, in which the second spring piece 23 can be snapped. Or, the base 31 can be provided with a slot, in which the second spring piece 23 can be snapped.

[0064] Two snap-fit ​​grooves 35 are symmetrically arranged on the base 31 to engage with the first spring piece 123.

[0065] An arc-shaped groove 36 is provided on the substrate 31, and the arc-shaped groove 36 is arranged along the circumference of the substrate 31. The fixing ring 33 is sleeved on the substrate 31 and located in the arc-shaped groove 36. There is a gap between the arc-shaped groove 36 and the substrate 31 for the seam 40 to pass through.

[0066] During the rotation and anchoring of the suture staple 30, since the suture 40 is located in the gap between the fixing ring 33 and the base 31, the suture 40 can rotate relative to the base 31. The suture 40 will not get tangled or knotted and locked on the base 31 and the spiral needle 32, thus avoiding the situation where the suture staple 30 cannot slide on the suture 40. This ensures that multiple suture staples 30 can be tightened smoothly through the suture 40 to achieve effective suturing of the wound.

[0067] The snap-fit ​​groove 35 increases the snap-fit ​​area between the first spring 123 and the suture staple 30, which increases the snap-fit ​​strength between the suture staple 30 and the first spring 123, thereby increasing the reliability of the suture staple 30 fixation.

[0068] In one embodiment of this application, two grooves are respectively provided on the two second surfaces, and two limiting slide plates are slidably disposed in the two grooves. In a specific embodiment of this application, the grooves are formed by the wall of the fixed tube recessing into the interior of the fixed tube.

[0069] The slide groove acts as a guide, preventing the limiting slide plate from tilting and failing to engage smoothly with the suture pin when sliding on the fixed tube. This ensures that the second spring plate can smoothly engage with the suture pin, thereby guaranteeing that the suture pins can be released accurately one by one.

[0070] The specific operation process of the endoscopic suture device is as follows:

[0071] Multiple suture pins 30 are provided on the outer surface of the fixation tube 122. All suture pins 30 are engaged between the first spring plate 123 and the second spring plate 23. The spiral needle tip 32 of the suture pin 30 located at the foremost end of the fixation tube 122 protrudes from the fixation tube 122. Then, the suture pin 30 is anchored to the corresponding position on the wound by rotating the fixation frame 10. Afterward, the control line 21 is dragged, which drives the limiting slide plate 22 to move, thereby moving the second spring plate 23 that cooperates with the previous suture pin 30 to the next suture pin 30. At this time, the moving part 51 moves along the guide rod 112 and compresses the spring 52. After the second spring plate 23 is engaged with the next suture pin 30, the dragging of the control line 21 is stopped, and then the fixation frame 10 is dragged so that the suture pin 30 can be dislodged from the fixation tube 122. Then, the external force applied to the control line 21 is removed, and the spring... Under the action of the elastic force, the control line 21 moves, and the control line 21 drives the remaining suture nails 30 to move as a whole on the fixing tube 122 through the limiting slide plate 22. When the suture nails 30 move to the set position, all the suture nails 30 are engaged between the first spring plate 123 and the second spring plate 23, thereby fixing the suture nail 30 at the front end of the fixing tube 122 to the fixing tube 122. At this time, the spiral needle head 32 of the front end suture nail 30 protrudes from the fixing tube 122. In this way, multiple suture nails 30 are anchored to the corresponding fixing points of human tissue. Then, the multiple suture nails 30 are tightened by the suture 40 so that the multiple suture nails 30 drive the human tissue around the wound to wrap the wound. After the multiple suture nails 30 are tightened, the suture 40 is locked. Finally, the suture 40 is cut so that the multiple suture nails 30 drive the human tissue around the wound to suture the wound.

[0072] Example 2

[0073] like Figure 12 and Figure 13 As shown, the scheme of Embodiment 2 is largely the same as that of Embodiment 1, with the main difference being that the control device 20 includes a control tube 25 and two limiting slide plates 22 connected to each other. Specifically, the connecting part 251 on the control tube 25 is connected to the limiting slide plate 22, and the two limiting slide plates 22 are symmetrically arranged on both sides of the control tube 25. Multiple second spring pieces 23 are equally spaced on the limiting slide plate 22. The second spring pieces 23 are inclined relative to the limiting slide plate 22, and the second spring pieces 23 extend away from the frame 11 along the axial direction of the mounting tube 12. The control tube 25 is sleeved on the mounting tube 12 and can slide on the mounting tube 12.

[0074] The rotating shaft type defect closure device provided in this application has multiple suture pins 30 disposed on the outer surface of the fixing tube 122. All suture pins 30 are sequentially engaged between the first spring plate 123 and the second spring plate 23. The spiral needle tip of the suture pin 30 located at the foremost end of the fixing tube 122 protrudes from the fixing tube 122. Then, the suture pins 30 are anchored to the corresponding positions on the wound surface by rotating the fixing frame 10. Afterward, the control tube 25 is dragged, which drives the limiting slide plate 22 to move, thereby moving the second spring plate 23 that cooperates with the previous suture pin 30 to the next suture pin 30 and engaging with it. Then, the fixing frame 10 is dragged so that the suture pins 30 can be dislodged from the fixing tube 122. Then, the control tube 25 is pushed, and the control tube 25 drives the remaining suture pins 30 to move as a whole on the fixing tube 122 through the limiting slide plate 22. When the suture pins 30 move to the set position, all the suture pins 30 are locked between the first spring 123 and the second spring 23. At this time, the spiral needle of the suture pin 30 at the front end of the fixing tube 122 protrudes from the fixing tube 122. By analogy, multiple suture pins 30 are anchored at the corresponding positions on the wound surface, and then the multiple suture pins 30 are tightened by sutures. The multiple suture pins 30 drive the human tissue around the wound to suture the wound, realizing that the rotating shaft type defect closure device can suture the wound surface after entering the human body once, which improves the suturing efficiency of the wound surface. The above structure ensures that each suture pin 30 is engaged in a locking position formed by a first spring 123 and a second spring 23. Once the suture pin 30 is engaged in the locking position, the control device 20 cannot be pushed further, thus preventing accidental pushing of multiple suture pins 30 out of the fixing tube 122. In addition, only after the previous suture pin 30 has disengaged from the frontmost locking position can the next suture pin 30 enter the frontmost locking position. This ensures that each suture pin 30 of the rotating shaft defect closure device is released accurately and sequentially, thereby guaranteeing the suturing accuracy and safety of the rotating shaft defect closure device and increasing the product's market competitiveness.

[0075] In the description of this application, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0076] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. The term "multiple" refers to two or more, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0077] The present application has been described above with reference to preferred embodiments; however, these embodiments are merely exemplary and illustrative. Various substitutions and modifications can be made to the present application based on these embodiments, all of which fall within the protection scope of the present application.

Claims

1. A rotating shaft type defect closure device, characterized in that, The rotating shaft type defect closure device includes: A fixing frame includes a frame body and a mounting tube. The mounting tube includes a connecting tube and a fixing tube connected to each other. The connecting tube is connected to the fixing frame, and the fixing tube includes two oppositely arranged first surfaces and two oppositely arranged second surfaces. A plurality of first spring pieces are equally spaced on the two first surfaces, and the plurality of first spring pieces on the two first surfaces are symmetrical about the axis of the mounting tube. Each first spring piece includes a fixed end and a free end that are oppositely arranged. The fixed end is connected to the mounting tube and is located adjacent to the frame body. The free end extends away from the frame body along the axial direction of the mounting tube. The control device includes a control component and two limiting slide plates connected to each other. The two limiting slide plates are symmetrically arranged on both sides of the control component. A plurality of second spring pieces are equally spaced on the limiting slide plates. The second spring pieces are inclined relative to the limiting slide plates and extend away from the frame along the axial direction of the mounting tube. The control component is disposed on the mounting tube and can slide on the mounting tube. One end of the control component protrudes from the frame. The two limiting slide plates are slidably disposed on the two second surfaces respectively. Multiple suture pins are stacked sequentially and fitted onto the integral structure formed by the fixing tube and the two limiting slides. The mounting tube is capable of rotating the suture pins. Each suture pin is engaged between a first spring and a second spring, with the first spring abutting against the end of the suture pin near the frame, and the second spring engaging the end of the suture pin away from the frame. The suture is connected to a plurality of the suture pins, and the suture is fixedly connected to the suture pin furthest from the frame, while the other suture pins are slidable along the suture. The two second surfaces are respectively provided with guide holes, and the guide holes are located adjacent to the connecting tube. The length of the guide hole is not less than the distance between two adjacent second spring pieces. The control element is a control line, which is connected to the two limiting slide plates through a connecting shaft. The two ends of the connecting shaft are respectively located in the two guide holes and can slide in the guide holes. The connecting shaft is configured to cooperate with the guide holes to limit the movement distance of the limiting slide plates, so that the suture pins can be released one by one. Alternatively, guide holes are provided on each of the two second surfaces, and the guide holes are located adjacent to the connecting tube. The length of the guide holes is not less than the distance between two adjacent second spring pieces. The control element is a control tube, which is sleeved on the mounting tube. The control tube is connected to the limiting slide plate through a connecting part, and part of the connecting part is located in the two guide holes and can slide in the guide holes. The connecting part is configured to cooperate with the guide holes to limit the movement distance of the limiting slide plate so that the stitching pins can be released one by one.

2. The rotating shaft type defect closure device according to claim 1, characterized in that, When the control element is a control line, the mounting tube has a through hole extending through it; The other end of the control line extends into the through hole, and one end of the control line protrudes from the frame.

3. The rotating shaft type defect closure device according to claim 2, characterized in that, In the axial direction of the fixed tube, the guide hole passes through the end of the fixed tube that is connected to the connecting tube.

4. The rotating shaft type defect closure device according to claim 1, characterized in that, The first surface is provided with a plurality of clearance holes, and each first spring piece is provided corresponding to one of the clearance holes. One end of the first spring piece is connected to the hole wall of the clearance hole, and the other end of the first spring piece protrudes from the fixing tube. In the axial direction of the mounting tube, the length of the first spring piece is less than the length of the clearance hole.

5. The rotating shaft type defect closure device according to claim 1, characterized in that, The suture staple includes a base, a spiral needle, and a retaining ring; The substrate is symmetrically provided with two snap-fit ​​structures that snap into the second spring sheet; The substrate is symmetrically provided with two snap-fit ​​grooves that engage with the first spring piece; The substrate is provided with an arc-shaped groove, which is arranged along the circumference of the substrate. The fixing ring is sleeved on the substrate and located in the arc-shaped groove. There is a gap between the arc-shaped groove and the substrate for the seam to pass through.

6. The rotating shaft type defect closure device according to claim 1, characterized in that, The fixed tube has a slit.

7. The rotating shaft type defect closure device according to claim 1, characterized in that, Each of the two second surfaces is provided with a sliding groove, and the two limiting slide plates are slidably disposed in the two sliding grooves.

8. The rotating shaft type defect closure device according to claim 1, characterized in that, The outer contour of the projection of the fixed tube onto the projection plane is a quadrilateral, and the projection plane is a plane perpendicular to the axis of the fixed tube.

9. The rotating shaft type defect closure device according to claim 1, characterized in that, The frame includes a main body, a guide rod, and a support part. The guide rod is located between the main body and the support part and is connected to both the main body and the support part. The rotating shaft type defect closure device further includes: a movable part, which is disposed on the guide rod and is movable on the guide rod, and the movable part is connected to one end of the control member; and A spring is disposed on the guide rod and supported between the moving part and the supporting part.

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