Surgical puncture guiding device

Abstract

The surgical puncture guiding device comprises a push rod assembly and a bent end and further comprises a needle head cap, the push rod assembly comprises a pushing component, a flexible component located at the front end of the pushing component and an arc-shaped elbow, the front end of the flexible component is fixed to the tail of the arc-shaped elbow, and the front end of the flexible component is fixed to the tail of the arc-shaped elbow. The needle head cap is arranged at the front end of the arc-shaped elbow, and the front end part of the needle head cap forms a puncture needle head; the bent end is located at the front end of the push rod assembly and comprises a front end cover providing a running path for the arc-shaped elbow and the flexible component and a containing structure used for containing a needle cap, and the pushing component is used for controlling the flexible structure and the arc-shaped elbow to push the needle cap into the containing structure through the front end cover. According to the surgical puncture guiding device, by arranging the push rod assembly and the bent end, the needle head cap can return to the puncture guiding device while puncture is completed, the needle head cap does not need to be independently recycled, and the surgical process is simplified.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a surgical puncture guide. Background Art

[0002] Pelvic organ prolapse (POP) is a common gynecological condition in women. It results from a variety of factors, including loss, damage, and degeneration of the pelvic floor support tissues. This can lead to downward displacement of pelvic organs (such as vaginal bulging and uterine prolapse), which can further lead to functional abnormalities (such as abnormal urination, defecation, and sexual dysfunction). Sacrospinous ligament fixation (SSLF) is an effective surgical procedure for pelvic floor repair.

[0003] A surgical puncture guide is a tool used to guide sutures through the sacrospinous ligament during sacrospinous ligament fixation. The sutures guided by the puncture guide are tied to the sutures pre-stitched to the sacrospinous ligament to secure the prolapsed organ (bladder, uterus, etc.) to the sacrospinous ligament. Currently, the puncture guide used in sacrospinous ligament fixation requires the puncture needle to be ejected from the proximal end to the distal end. After the puncture is complete, the operator must remove the puncture needle, which is cumbersome and less safe. Utility Model Content

[0004] In order to solve the problems of the prior art, the present application provides a surgical puncture guide. By improving the structure of the front end of the puncture guide, the puncture needle returns to the puncture guide after the puncture is completed, which facilitates operation and improves safety of use.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] The present invention provides a surgical puncture guide, comprising a push rod assembly and a curved end.

[0007] Also included is a needle cap with a needle cap;

[0008] The push rod assembly includes a pushing component, a flexible member located at the front end of the pushing component, and an arc-shaped elbow. The front end of the flexible member is fixed to the tail end of the arc-shaped elbow. The needle cap is installed at the front end of the arc-shaped elbow. The front end of the needle cap constitutes a puncture needle.

[0009] The curved end is located at the front end of the push rod assembly, and the curved end includes a front end cover that provides a running path for the arc elbow and the flexible member and a accommodating structure for accommodating the needle cap. The pushing component is used to control the flexible member and the arc elbow to push the needle cap into the accommodating structure via the front end cover.

[0010] As a further preferred solution, the pushing component described in the embodiment of the present application includes a push rod, an active rod fixed at the front end of the push rod, and a fixed sleeve for connecting the bent end and the pushing assembly; the flexible member is sleeved in the fixed sleeve, and the end of the flexible member is fixed on the active rod.

[0011] As a further preferred solution, the surgical puncture guide described in the embodiment of the present application also includes a rear end cover, the end of the fixed sleeve is fixed to the front end of the rear end cover, the active rod is located inside the rear end cover, and a travel spacing is provided between the active rod and the end of the fixed sleeve so that the flexible member can push the needle cap into the accommodating structure.

[0012] As a further preferred solution, the curved end head described in the embodiment of the present application also includes a front end cover, a guide groove for the winding structure to pass through is provided inside the front end cover, the front end of the front end cover is set as an arc-shaped groove, the arc-shaped elbow is installed in the arc-shaped groove, and the accommodating structure is set at the proximal end of the arc-shaped groove.

[0013] As a further preferred solution, the front end of the fixing sleeve described in the embodiment of the present application is provided with an axial hole and an opening groove, and the rear end of the front end cover is provided with a pin matching the axial hole and a protrusion matching the opening groove, and the front end of the fixing sleeve is fixed to the rear end of the front end cover through the axial hole and the opening groove.

[0014] As a further preferred solution, a clamping block extends outward from the tail of the fixing sleeve described in the embodiment of the present application, and a clamping groove that cooperates with the clamping block is provided inside the front end of the rear end cover.

[0015] As a further preferred solution, the accommodating structure described in the embodiment of the present application is a spring plate, which is installed on the proximal front end cover of the arc-shaped groove, and is provided with a slot hole for clamping the needle cap.

[0016] As a further preferred solution, the surgical puncture guide described in the embodiment of the present application further includes a reset spring, one end of which is fixed to the tail of the fixing sleeve, and the other end of which is sleeved on the active rod.

[0017] As a further preferred solution, the push rod described in the embodiment of the present application is provided with a handle at the tail end, and the handle is provided with a wire clamping groove.

[0018] As a further preferred solution, the tail of the rear end cover described in the embodiment of the present application extends outwardly to form a gripping portion.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. The surgical puncture guide described in the embodiment of the present application is provided with a push rod assembly and a curved end. The flexible member can pass through the front end cover to push the front end of the arc elbow and the needle cap into the accommodating structure to complete the puncture. During this process, while completing the puncture, the needle cap will be returned to the puncture guide, avoiding the need to separately recover the needle cap and simplifying the surgical procedure.

[0021] 2. In the surgical puncture guide described in the embodiment of the present application, the needle cap is located at the front end of the curved end, which is not only convenient for use but also simplifies the structure of the puncture guide. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of the surgical puncture guide described in an embodiment of the present application.

[0024] Figure 2 This is a schematic structural diagram of the surgical puncture guide described in an embodiment of the present application.

[0025] Figure 3 This is an exploded view of the surgical puncture guide described in an embodiment of the present application.

[0026] Among them, the figures are marked as: 10, push rod assembly; 11, pushing component; 111, push rod; 112, active rod; 113, fixed sleeve; 114, handle; 12, flexible member; 13, arc elbow; 20, curved end; 21, front end cover; 211, guide groove; 212, arc groove; 22, accommodating structure; 30, rear end cover; 31, gripping part; 40, return spring.

[0027] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0031] like Figure 1-Figure 3 As shown, the embodiment of the present application provides a surgical puncture guide, including a push rod assembly 10 and a curved end 20, and also includes a needle cap with a suture (not shown in the figure), the push rod assembly 10 includes a pushing component 11, a flexible member 12 located at the front end of the pushing component 11, and an arc-shaped elbow 13, the front end of the flexible member 12 is fixed to the tail end of the arc-shaped elbow 13, the needle cap is installed at the front end of the arc-shaped elbow 13, and the front end of the needle cap constitutes a puncture needle;

[0032] The curved end 20 is located at the front end of the push rod assembly 10. The curved end 20 includes a front end cover 21 that provides a running path for the curved elbow 13 and the flexible member 12, and a receiving structure 22 for accommodating the needle cap. The pushing component 11 is used to control the flexible member 12 and the curved elbow 13 to push the needle cap into the receiving structure via the front end cover 21. From the working principle, in the solution of the present application, the flexible member can specifically adopt a coiled steel wire or other coiled metal parts. An opening is provided between the curved elbow and the receiving structure. This opening is used to clamp the puncture site or tissue. The flexible member can push the curved elbow to push the needle cap through the opening into the receiving structure. During specific implementation, the suture is fixed on the needle cap. This process completes the puncture and also returns the needle cap to the puncture guide. The needle cap does not need to be recovered during the operation. In some preferred solutions, a through hole is opened in the middle of the needle cap, the needle cap is sleeved on the front end of the detour component through the through hole, and the suture thread is fixed on the needle cap.

[0033] like Figure 2As shown, in a preferred embodiment of the present application, as a specific embodiment, the pushing component 11 includes a push rod 111, an active rod 112 fixed to the front end of the push rod 111, and a fixed sleeve 113 for connecting the curved end 20 and the pushing assembly 10; the flexible member 12 is sleeved in the fixed sleeve 113, and the end of the flexible member 12 is fixed to the active rod 111. During operation, the operator applies force to the push rod to push the active rod forward to push the flexible member (winding steel wire or other winding metal wire) along the fixed sleeve, driving the arc elbow to push the needle cap into the accommodating structure, thereby simultaneously completing puncture and needle cap recovery.

[0034] like Figure 3 As shown, in another preferred embodiment, based on the above solution, as a further solution, the surgical puncture guide further includes a rear end cover 30, the end of the fixing sleeve 113 is fixed to the front end of the rear end cover 30, and the fixing method can be a snap fixation or other buckling method. The active rod 112 is located inside the rear end cover 30, and a travel distance is provided between the active rod 112 and the end of the fixing sleeve 113 to enable the flexible member 12 to push the needle cap into the accommodating structure 22. The front end cover 21 is provided with a guide groove 211 for the flexible structure 12 to pass through. The front end of the front end cover 21 is provided with an arcuate groove 212, the arcuate elbow 13 is installed in the arcuate groove 12, and the accommodating structure 22 is provided at the proximal end of the arcuate groove 212. Specifically, the arcuate elbow is installed in the arcuate groove 212, and the accommodating structure 22 is provided at the proximal end of the arcuate groove 212. In this embodiment, the stroke spacing is equal to the length of the arc extension line between the distal end and the proximal end of the arc groove, so that the flexible member can return from the distal end of the arc groove to the accommodating structure at the proximal end.

[0035] On the basis of the above-mentioned embodiment, as a further improvement, in order to facilitate installation and disassembly, a preferred solution is that the fixing method between the fixing sleeve 113 and the front cover 21 and the rear cover 30 is achieved by the following solution: an axial hole and an open slot are set along the front end of the fixing sleeve 113. The axial hole and the open slot can be set in the radial direction or in the axial direction. A pin matching the axial hole and a protrusion matching the open slot are set in the rear end of the front cover. The front end of the fixing sleeve is fixed to the rear end of the front cover through the axial hole and the open slot. A clamping block extends outward from the rear end of the fixing sleeve, and a clamping slot matching the clamping block is set inside the front end of the rear cover. The matching relationship between the fixing sleeve and the front cover is not limited to the above-mentioned matching relationship. For example, other methods such as threaded connection and screw fixing can also be used.

[0036] In a further embodiment based on the above embodiment, the housing structure 22 is a sheet metal spring. The spring is mounted on the front end cover proximal to the arcuate slot 212. The spring is provided with a slot for retaining the needle cap. The spring is elastic, and the needle cap is made of an elastic material. When the needle cap is pushed into the slot, it is secured by an interference fit. In this embodiment, the spring can be made of metal, or a resilient plastic or rubber material.

[0037] like Figure 3 As shown, further, based on the solutions described in any of the above embodiments, in a preferred solution, the surgical puncture guide described in the present application further includes a return spring 40, one end of which is fixed to the rear end of the fixing sleeve 113, and the other end is sleeved on the active rod 112. During operation, the active rod is moved forward by pushing the push rod to compress the spring, pushing the bypass member forward, so that the front end of the bypass member pushes the needle cap through the arc-shaped elbow, through the punctured tissue, and into the slot of the spring; when the puncture is completed, the push rod is released, and under the action of the return spring, the active rod pulls the bypass member back along the arc-shaped elbow, leaving the needle cap in the slot.

[0038] Furthermore, based on the solutions described in any of the above embodiments, a preferred solution is that, in order to facilitate the use of force, a handle 114 is provided at the tail of the push rod 111. The handle 114 is configured to be circular, oval, or other shapes that are convenient for operation. The outer diameter of the handle 114 is larger than the outer diameter of the push rod 111. The handle can be integrally formed with the push rod, or can be separately formed and then connected and fixed. The handle is provided with a wire groove (not shown in the figure) for fixing surgical sutures.

[0039] Furthermore, based on the solution described in the above embodiment, in order to further facilitate the operator to exert force, the tail of the rear end cover 30 described in the present application extends outward with a gripping portion 31, and the gripping portion 31 and the handle cooperate with each other, making the push rod easier to push out.

[0040] The above description is only a preferred embodiment of the present application and does not limit the scope of protection of the present application. All equivalent structural transformations made using the contents of the present application description and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the scope of patent protection of the present application.

Claims

1. A surgical puncture guide, comprising a push rod assembly and a curved end, characterized in that: Also included is a needle cap with a needle cap; The push rod assembly includes a pushing component, a flexible member located at the front end of the pushing component and an arc-shaped elbow, the front end of the flexible member is fixed to the tail of the arc-shaped elbow, the needle cap is installed at the front end of the arc-shaped elbow, and the front end of the needle cap constitutes a puncture needle; The curved end is located at the front end of the push rod assembly, and the curved end includes a front end cover that provides a running path for the arc-shaped elbow and the flexible member and a receiving structure for accommodating the needle cap. The pushing component is used to control the flexible member and the arc-shaped elbow to push the needle cap into the receiving structure via the front end cover.

2. The surgical puncture guide according to claim 1, characterized in that: The pushing component includes a push rod, an active rod fixed at the front end of the push rod and a fixing sleeve for connecting the bent end and the pushing component; the flexible member is sleeved in the fixing sleeve, and the end of the flexible member is fixed on the active rod.

3. The surgical puncture guide as claimed in claim 2, characterized in that: It also includes a rear end cover, the end of the fixed sleeve is fixed to the front end of the rear end cover, the active rod is located inside the rear end cover, and a travel spacing is set between the active rod and the end of the fixed sleeve to enable the flexible component to push the needle cap into the accommodating structure.

4. The surgical puncture guide as claimed in claim 3, characterized in that: A guide groove for the flexible member to pass through is arranged inside the front end cover, an arc groove is arranged at the front end of the front end cover, an arc elbow is installed in the arc groove, and the accommodating structure is arranged at the proximal end of the arc groove.

5. The surgical puncture guide according to claim 4, characterized in that: The front end of the fixing sleeve is provided with an axial hole and an opening slot, the rear end of the front end cover is provided with a latch matching the axial hole and a bump matching the opening slot, and the front end of the fixing sleeve is fixed to the rear end of the front end cover through the axial hole and the opening slot.

6. The surgical puncture guide according to claim 5, characterized in that: A clamping block extends outwardly from the rear end of the fixing sleeve, and a clamping groove matching with the clamping block is arranged inside the front end of the rear end cover.

7. The surgical puncture guide according to any one of claims 4 to 6, characterized in that: The accommodating structure is a spring sheet, which is mounted on the proximal front end cover of the arc-shaped slot, and a slot hole for clamping the needle cap is provided on the spring sheet.

8. The surgical puncture guide as claimed in claim 2, characterized in that: It also includes a return spring, one end of which is fixed to the tail of the fixing sleeve, and the other end of which is sleeved on the active rod.

9. The surgical puncture guide as claimed in claim 2, characterized in that: The rear part of the push rod is provided with a handle, and the handle is provided with a wire clamping groove.

10. The surgical puncture guide according to claim 3, characterized in that: A gripping portion extends outward from the tail of the rear end cover.

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