Suturing nail assembly and suturing nail device

Abstract

The suturing nail assembly comprises a spring section and a sleeve section, a barrel cavity is formed in the sleeve section and the spring section, the barrel cavity sequentially comprises a cylindrical cavity and a limiting cavity, an inner boss is arranged on the inner wall of the cylindrical cavity, and the limiting cavity is arranged on the inner wall of the cylindrical cavity; the release head with the directional boss and the suturing nail assembly have a first matching state and a second matching state, in the first matching state, the directional boss is contained in the cylindrical cavity in a limited mode, the release head and the suturing nail assembly can rotate relatively, and in the second matching state, the directional boss is inserted into the limiting cavity. The releasing head rotates to drive the suturing nail assembly to rotate synchronously. When the suturing nail assembly is replaced, medical staff do not need to align the release head with the sleeve section in advance, the release head is directly inserted into the cylindrical cavity, the angle of the release head can be adjusted by rotating the handle of the suturing nail device, the release head can be inserted into the limiting cavity, the suturing nail assembly is driven to rotate synchronously, and the spring section is smoothly screwed into tissue.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular, to a suture staple assembly and a suture staple device. Background Art

[0002] With the advancement of medical science and technology, minimally invasive surgery using endoscopes has gradually become the mainstream treatment for gastrointestinal diseases. As an inspection instrument, the endoscope itself cannot perform surgical functions. The surgeon typically uses a minimally invasive medical device to pass through the endoscope's channel aperture, following the endoscope's lens to the target lesion location. The surgeon then uses the minimally invasive medical device to perform the corresponding surgical operation on the target lesion. A stapler is a common minimally invasive medical device. The stapler's releaser and staple assembly work together. The releaser is typically equipped with a synchronization rib, while the sleeve section of the staple assembly is provided with a synchronization groove. After the stapler assembly of the stapler is screwed into the tissue, it must be replaced with another stapler. To replace the stapler, the medical staff must visually align the synchronization rib with the synchronization groove on the sleeve section of the new stapler assembly before assembling the stapler. Due to the small size of the stapler assembly and the need to replace multiple stapler assemblies during the entire surgical process, the medical staff must have excellent concentration and manual skills, which greatly increases the difficulty of the surgical process. Utility Model Content

[0003] In order to solve one of the above technical deficiencies, an embodiment of the present application provides a suture staple assembly and a suture staple device.

[0004] The utility model adopts the following technical solutions:

[0005] According to a first aspect of the present application, there is provided a staple assembly comprising:

[0006] Spring segment;

[0007] a sleeve segment connected to one end of the spring segment, wherein a cylindrical cavity is defined within the sleeve segment and the spring segment. In the direction from the sleeve segment to the spring segment, the cylindrical cavity sequentially comprises a cylindrical cavity and a limiting cavity, and an inner boss is provided on the inner wall of the cylindrical cavity;

[0008] The release head with the directional boss and the suture nail assembly have a first mating state and a second mating state. In the first mating state, the directional boss is limited and accommodated in the cylindrical cavity, the release head and the directional boss are limited and mated, and the release head and the suture nail assembly can rotate relative to each other. In the second mating state, the directional boss is inserted into the limiting cavity, and the rotation of the release head can drive the suture nail assembly to rotate synchronously.

[0009] Optionally, a limiting step is formed between the cylindrical cavity and the limiting cavity;

[0010] In the first mating state, the directional boss abuts against the limiting step;

[0011] The release head and the suturing nail assembly can rotate relative to each other, driving the directional boss to stagger the limiting step, so that the release head can be inserted into the limiting cavity.

[0012] Optionally, the limiting cavity has two first flat surfaces arranged opposite to each other;

[0013] In the second mating state, the directional bosses are respectively in contact with the two first flat surfaces.

[0014] Optionally, the inner wall surface of the limiting cavity located between the two first flat surfaces is a concave arc surface.

[0015] Optionally, a plurality of notches are provided on an edge of one end of the sleeve segment facing away from the spring segment, and the notches are sequentially spaced apart along the circumference of the sleeve segment.

[0016] According to a second aspect of the present application, there is provided a suturing staple device, comprising:

[0017] handle;

[0018] an elastic tube, one end of which is connected to the handle;

[0019] A release head, the release head is located at one end of the elastic tube, the release head comprises a main body and a directional boss connected to the main body, and an outer boss is provided on the outer wall of the main body;

[0020] A cable, the cable being slidably disposed in the elastic tube, one end of the cable being transmission-connected to the release head;

[0021] a slip ring, the slip ring being slidably disposed on the handle and being in transmission connection with the other end of the cable;

[0022] In the above-mentioned suturing nail assembly, in the first mating state, the directional boss is accommodated in the cylindrical cavity, and the outer boss on the main body and the inner boss are limitedly mated. In the second mating state, the directional boss is inserted into the limiting cavity, and the rotation of the release head can drive the suturing nail assembly to rotate synchronously.

[0023] Optionally, the cross-sectional area of ​​the main body is greater than the cross-sectional area of ​​the directional boss;

[0024] In the second mating state, the directional boss is inserted into the limiting cavity, and the main body is located in the cylindrical cavity and abuts against the limiting step in the cylindrical cavity.

[0025] Optionally, the directional boss is provided with a second flat surface on two opposite sides thereof;

[0026] In the second mating state, each of the second flat surfaces is respectively in contact with the corresponding first flat surface in the limiting cavity.

[0027] Optionally, two opposite sides of the directional boss are respectively provided with convex arc surfaces;

[0028] The two outer convex arc surfaces are respectively located between the two second flat surfaces and respectively connect the two second flat surfaces;

[0029] In the second mating state, the convex arc surface is in contact with the concave arc surface of the limiting cavity.

[0030] Optionally, an end surface is provided at one end of the directional boss facing away from the main body;

[0031] The end surface smoothly transitions to the second flat surface;

[0032] The end surface transitions smoothly with the outer convex arc surface.

[0033] By adopting the above technical solution, this application has the following beneficial effects:

[0034] The suture staple assembly of the present application does not require medical personnel to align the release head and sleeve segment in advance before assembly. The release head can be directly inserted into the cylindrical cavity. By rotating the handle of the suture staple device, the angle of the release head can be adjusted so that the release head can be inserted into the limit cavity, driving the suture staple assembly to rotate synchronously, and smoothly screwing the spring segment into the tissue. The suture staple assembly of the present application can effectively reduce the difficulty of operation, reduce assembly errors, shorten the operation time, and make it easier for medical personnel to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0036] Figure 1 A schematic structural diagram of a suturing staple device provided in an embodiment of the present application is shown;

[0037] Figure 2 A partial structural diagram of a suturing staple device provided in an embodiment of the present application is shown;

[0038] Figure 3 A cross-sectional view showing a staple assembly and a release head provided in an embodiment of the present application in a first mating state;

[0039] Figure 4A cross-sectional view showing the staple assembly and the release head provided in an embodiment of the present application in a second mating state;

[0040] Figure 5 A schematic structural diagram of a suture staple assembly provided in an embodiment of the present application is shown;

[0041] Figure 6 A cross-sectional view of a staple assembly provided by an embodiment of the present application is shown;

[0042] Figure 7 A schematic structural diagram of a release head of a staple device provided in an embodiment of the present application is shown.

[0043] In the figure: 1, staple assembly; 11, spring segment; 12, sleeve segment; 121, notch; 13, cylindrical cavity; 14, limiting cavity; 141, first flat surface; 15, inner boss; 16, limiting step;

[0044] 2. Release head; 21. Main body; 211. External boss; 22. Orienting boss; 221. Second flat surface; 222. End surface;

[0045] 3. Handle;

[0046] 4. Elastic tube;

[0047] 5. Cable;

[0048] 6. Slip ring;

[0049] 7. Sutures. DETAILED DESCRIPTION

[0050] In order to make the technical solutions and advantages of the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, and are not an exhaustive list of all the embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other unless they conflict.

[0051] In the description of the present application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0052] In this application and its embodiments, unless otherwise expressly specified or limited, terms such as "disposed," "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0053] In the present application and its embodiments, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0054] See also Figures 1 to 7 As shown, an embodiment of the present application provides a suture staple assembly 1, comprising: a spring segment 11 and a sleeve segment 12. The sleeve segment 12 is connected to one end of the spring segment 11. The sleeve segment 12 and the spring segment 11 have a cylindrical cavity therein. In the direction from the sleeve segment to the spring segment 11, the cylindrical cavity sequentially comprises a cylindrical cavity 13 and a limiting cavity 14. The inner wall of the cylindrical cavity 13 is provided with an inner boss 15. The release head 2 having a directional boss 22 and the suture staple assembly 1 have a first mating state and a second mating state. In the first mating state, the directional boss 22 is limitedly accommodated in the cylindrical cavity 13, and the release head 2 and the directional boss 22 are limitedly mated, so that the release head 2 and the suture staple assembly 1 can rotate relative to each other. In the second mating state, the directional boss 22 is inserted into the limiting cavity 14, and the rotation of the release head 2 can drive the suture staple assembly 1 to rotate synchronously.

[0055] The sleeve section 12 of the suture staple assembly 1 of the present application is not provided with a synchronization groove, and the release head 2 of the suture staple device is not provided with a synchronization rib. During the replacement of the suture staple assembly 1, the medical staff does not need to align the release head 2 and the sleeve section 12 in advance before assembly. The release head 2 can be directly inserted into the cylindrical cavity 13. At this time, the release head 2 and the suture staple assembly 1 are in a first mating state, and the release head 2 and the inner boss 15 are engaged. The inner boss 15 restricts the release head 2 from being separated from the cylindrical cavity 13, but the release head 2 and the sleeve section 12 can rotate relative to each other. When the suture staple assembly 1 needs to be implanted in the tissue, the slip ring 6 and the handle of the suture staple device can be rotated to drive the release head 2 to rotate, and the angle of the release head 2 can be adjusted so that the release head 2 rotates to a position relative to the limiting cavity 14, so that the release head 2 can be further inserted into the limiting cavity 14 of the sleeve section 12. At this time, the release head 2 and the suture staple assembly 1 cannot rotate relative to each other, and can only rotate synchronously. The release head 2 can drive the suture staple assembly 1 to rotate, and the spring segment 11 can be smoothly screwed into the tissue. The suture staple assembly 1 is usually provided with a rotating ring, and the rotating ring is connected to the suture thread 7. The suture staple assembly 1 of the present application can effectively reduce the difficulty of operation, reduce assembly errors, shorten the operation time, and make the operation simpler for medical staff.

[0056] In some possible implementations, see Figure 3 As shown, a limiting step 16 is formed between the cylindrical cavity 13 and the limiting cavity 14. The limiting step 16 is not a closed ring. In the first mating state, the directional boss 22 abuts against the limiting step 16, and the release head 2 and the suture nail assembly 1 can rotate relative to each other, driving the directional boss 22 to stagger the limiting step 16, so that the release head 2 can be inserted into the limiting cavity 14.

[0057] During the operation, after the suture nail assembly 1 of the suture nail device reaches the damaged tissue through the endoscope, the suture nail assembly 1 is operated by the rear end handle 3 of the suture nail device to support the tissue. By rotating the rear end handle 3, the cable 5 can be driven to rotate, thereby rotating the front end release head 2. Since the spring nail assembly has been fixed against the tissue, when the release head 2 is rotated at a certain angle, the directional boss 22 will be inserted into the limit cavity 14, so that the handle 3 can drive the spring nail to rotate and screw the spring nail assembly into the tissue, thereby successfully completing the implantation of the spring nail assembly. Through this structural design, the difficulty of the nail replacement process can be greatly reduced, the nail replacement time can be reduced, and the entire surgical process can be made simpler and more convenient.

[0058] In some possible implementations, see Figure 4 and Figure 6As shown, the limiting cavity 14 has two first flat surfaces 141 disposed opposite each other. In the second mating state, the directional bosses 22 are respectively attached to the two first flat surfaces 141. Rotation of the release head 2 directly drives the sleeve segment 12 to rotate synchronously. There is no gap between the release head 2 and the sleeve segment 12, which improves the accuracy of the surgical operation.

[0059] In some possible implementations, see Figure 4 and Figure 6 As shown, the inner wall surface of the limiting cavity 14 between the two first flat surfaces 141 is a concave arc surface. The concave arc surface smoothly transitions with the inner wall of the cylindrical cavity 13. Similarly, two convex arc surfaces can be correspondingly provided on the directional boss 22. In the second mating state, the two convex arc surfaces and the two concave arc surfaces are smoothly fitted.

[0060] In some possible implementations, a plurality of notches 121 are provided along the edge of one end of the sleeve segment 12 facing away from the spring segment 11. The notches 121 are sequentially spaced along the circumference of the sleeve segment 12. Each notch 121 divides the sleeve segment 12 into a plurality of deformable segments. The inner boss 15 includes an inner convex portion provided on each deformable segment. During the insertion of the release head 2 into the sleeve segment 12, the release head 2 can act on each deformable segment, causing each deformable segment to deform outward. When the release head 2 abuts the stop step 16, the release head 2 is inserted into place, the deformable segments recover their deformation, and the inner convex portion engages the outer boss 211 of the release head 2, preventing the sleeve segment 12 from easily separating from the release head 2.

[0061] See also Figures 1 to 7 As shown, the embodiment of the present application also provides a suturing nail device, comprising: a handle 3, an elastic tube 4, a release head 2, a pull cable 5, a slip ring 6 and the above-mentioned suturing nail assembly 1. One end of the elastic tube 4 is connected to the handle 3, and the release head 2 is located at both ends of the elastic tube 4. The release head 2 has a main body 21 and a directional boss 22 connected to the main body 21. An external boss 211 is provided on the outer wall of the main body 21. The pull cable 5 is slidably provided in the elastic tube 4. One end of the pull cable 5 is transmission-connected to the release head 2. The slip ring 6 is slidably provided on the handle 3. The slip ring 6 is transmission-connected to the other end of the pull cable 5. In the first mating state, see Figure 3 As shown, the directional boss 22 is accommodated in the cylindrical cavity 13, and the outer boss 211 on the main body 21 and the inner boss 15 are limitedly matched. In the second matching state, see Figure 4 As shown, the directional boss 22 is inserted into the limiting cavity 14 , and the rotation of the release head 2 can drive the suture nail assembly 1 to rotate synchronously.

[0062] In some possible implementations, see Figure 4 and Figure 7As shown, the cross-sectional area of ​​the main body 21 is larger than the cross-sectional area of ​​the directional boss 22. In the second mating state, the directional boss 22 is inserted into the limiting cavity 14, and the main body 21 is located in the cylindrical cavity 13 and abuts against the limiting step 16 in the cylindrical cavity. In the first mating state, see Figure 3 As shown, the directional boss 22 abuts against the limiting step 16. The cross-sectional area of ​​the main body 21 is larger than the cross-sectional area of ​​the limiting cavity 14. Only when the directional boss 22 is rotated to a certain angle can it be inserted into the limiting cavity 14, while the main body 21 cannot be inserted into the limiting cavity 14.

[0063] In some possible implementations, see Figure 4 and Figure 7 As shown, the directional boss 22 is provided with second flat surfaces 221 on opposite sides. In the second mating state, each second flat surface 221 is respectively fitted with the corresponding first flat surface 141 in the limiting cavity 14. The rotation of the release head 2 can drive the sleeve section 12 to rotate synchronously.

[0064] In some possible implementations, see Figure 7 As shown, the directional boss 22 is provided with convex arc surfaces on opposite sides. The two convex arc surfaces are respectively located between the two second flat surfaces 221 and are respectively connected to the two second flat surfaces 221. In the second mating state, the convex arc surfaces are in contact with the concave arc surfaces of the limiting cavity 14. In the first mating state, the convex arc surfaces are also in contact with the inner wall of the cylindrical cavity 13. The curvature radius of the convex arc surface, the curvature radius of the inner wall of the cylindrical cavity 13, and the curvature radius of the concave arc surface are the same. Whether in the first mating state or the second mating state, the directional boss 22 is in smooth contact with the inner wall of the cylindrical cavity. The directional boss 22 will not be skewed relative to the axis of the suture staple assembly 1, ensuring that the mating structure of the suture staple assembly 1 and the release head 2 is stable and reliable.

[0065] In some possible implementations, see Figure 7 As shown, the end of the directional boss 22 facing away from the main body 21 is provided with an end surface 222. The end surface 222 smoothly transitions with the second straight surface 221, and the end surface 222 smoothly transitions with the outer convex arc surface. The angular areas of the outer surface of the directional boss 22 are all smoothly transitioned, and the directional boss 22 has no sharp areas. The directional boss 22 and the suture staple assembly 1 are smoothly mated, and the two can smoothly switch from the first mating state to the second mating state, which has a high structural reliability.

[0066] The disclosure above provides many different embodiments or examples for realizing the different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described above. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0067] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0068] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A suture staple assembly, characterized in that: include: Spring segment; a sleeve segment connected to one end of the spring segment, wherein a cylindrical cavity is defined within the sleeve segment and the spring segment. In the direction from the sleeve segment to the spring segment, the cylindrical cavity sequentially comprises a cylindrical cavity and a limiting cavity, and an inner boss is provided on the inner wall of the cylindrical cavity; The release head with the directional boss and the suture nail assembly have a first mating state and a second mating state. In the first mating state, the directional boss is limited and accommodated in the cylindrical cavity, the release head and the directional boss are limited and mated, and the release head and the suture nail assembly can rotate relative to each other. In the second mating state, the directional boss is inserted into the limiting cavity, and the rotation of the release head can drive the suture nail assembly to rotate synchronously.

2. The staple assembly according to claim 1, wherein: A limiting step is formed between the cylindrical cavity and the limiting cavity; In the first mating state, the directional boss abuts against the limiting step; The release head and the suturing nail assembly can rotate relative to each other, driving the directional boss to stagger the limiting step, so that the release head can be inserted into the limiting cavity.

3. The staple assembly according to claim 1, wherein: The limiting cavity has two first flat surfaces arranged opposite to each other; In the second mating state, the directional bosses are respectively in contact with the two first flat surfaces.

4. The staple assembly according to claim 3, wherein: The inner wall surface of the limiting cavity located between the two first flat surfaces is a concave arc surface.

5. The staple assembly according to claim 1, wherein: A plurality of notches are provided on an edge of one end of the sleeve segment facing away from the spring segment, and the notches are sequentially spaced along the circumference of the sleeve segment.

6. A suture staple device, characterized in that: include: handle; an elastic tube, one end of which is connected to the handle; A release head, the release head is located at one end of the elastic tube, the release head comprises a main body and a directional boss connected to the main body, and an outer boss is provided on the outer wall of the main body; A cable, the cable being slidably disposed in the elastic tube, one end of the cable being transmission-connected to the release head; a slip ring, the slip ring being slidably disposed on the handle and being in transmission connection with the other end of the cable; The suturing staple assembly according to any one of claims 1 to 5, in a first mating state, the directional boss is accommodated in the cylindrical cavity, and the outer boss on the main body and the inner boss are limitedly engaged; in the second mating state, the directional boss is inserted into the limited cavity, and the rotation of the release head can drive the suturing staple assembly to rotate synchronously.

7. The staple device according to claim 6, wherein: The cross-sectional area of ​​the main body is greater than the cross-sectional area of ​​the directional boss; In the second mating state, the directional boss is inserted into the limiting cavity, and the main body is located in the cylindrical cavity and abuts against the limiting step in the cylindrical cavity.

8. The staple device according to claim 6, wherein: The directional boss is provided with a second flat surface on two opposite sides thereof; In the second mating state, each of the second flat surfaces is respectively in contact with the corresponding first flat surface in the limiting cavity.

9. The staple device according to claim 8, characterized in that The two opposite sides of the directional boss are respectively provided with outward convex arc surfaces; The two outer convex arc surfaces are respectively located between the two second flat surfaces and respectively connect the two second flat surfaces; In the second mating state, the convex arc surface is in contact with the concave arc surface of the limiting cavity.

10. The staple device according to claim 9, wherein: An end surface is provided at one end of the directional boss facing away from the main body; The end surface smoothly transitions to the second flat surface; The end surface transitions smoothly with the outer convex arc surface.

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