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Dual-knot knot guide for endoscopic endonasal transsphenoidal surgery

A technology of surgical knot pusher, which is applied in the field of medical devices, can solve the problems of narrow operating space for nasal surgery, difficulty in knotting, and inability to apply neuroendoscopic surgery, so as to reduce the risk of cerebrospinal fluid leakage, improve the success rate, reduce the effect of difficulty

Pending Publication Date: 2020-11-27
昆明医科大学第二附属医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Skull base reconstruction is often required in endoscopic transsphenoidal surgery, and the operating space for nasal cavity surgery is relatively narrow. At this time, it is necessary to use a knot pusher to push the knot deep from the outside of the nasal cavity to complete the knot. The existing knot pusher is mainly used for laparoscopic surgery. , arthroscopy, can not be used in neuroendoscopic surgery, transsphenoidal endoscopic surgery can not use the existing equipment to complete related operations, resulting in difficulty in knotting after dura mater suture in skull base reconstruction

Method used

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  • Dual-knot knot guide for endoscopic endonasal transsphenoidal surgery
  • Dual-knot knot guide for endoscopic endonasal transsphenoidal surgery
  • Dual-knot knot guide for endoscopic endonasal transsphenoidal surgery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 As shown, it includes a sleeve 1 and an operating handle. The operating handle includes a first finger ring 3 and a second finger ring 2. The first finger ring 3 and the second finger ring 2 are connected by a hinge. The sleeve 1. The rear end is fixed to the handle extension of the first finger ring 3. A connecting rod 7 is arranged in the sleeve 1. The rear end of the connecting rod 7 is fixed to the handle extension of the second finger ring 2. In the connecting rod The working end of 7 is provided with the first push knot ring 4, and the second push knot ring 6 is arranged side by side with the first push knot ring 4 on the connecting rod 7, and the second push knot ring 6 is the same as the first push knot ring 4, and the structure is non- The closed ring structure is respectively arranged on the left and right connecting rods of the connecting rod 7. The first push-knot ring 4 and the second push-knot ring 6 are arranged side by side along the axi...

Embodiment 2

[0031] Such as Figure 5 As shown, the first push-knot ring 4 is set at the working end of the connecting rod 7, and the second push-knot ring 6 is set on the sleeve 1, which is a closed ring structure circumscribed on the sleeve 1, and the other structures are the same as Example 1.

Embodiment 3

[0033] Such as Figure 8 As shown, the second push-knot ring 6 is inscribed on the sleeve 1, and the rest of the structure is the same as that in Embodiment 2.

[0034] Working principle and working process of the present invention:

[0035] When the present invention is in use, two knots are tied in a row, the knotted unilateral suture thread is passed through the second knot-pushing ring, and then the second finger ring 2 is opened to push the connecting rod 7 out of the sleeve 1, and the connecting rod The front ends of 7 are separated naturally, that is, the first knot-push ring is opened naturally, and then the knotted suture is clamped, and the second finger ring 2 is folded so that the first knot-push ring 4 is closed, and then the suture is pulled with one hand , operate the knot pusher with the other hand, start to slowly push the knot pusher in, and then gently withdraw the knot pusher when it is in place, back to a suitable position, push the connecting rod out of ...

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Abstract

The invention discloses a dual-knot knot guide for an endoscopic endonasal transsphenoidal surgery. The dual-knot knot guide for endoscopic endonasal transsphenoidal surgery comprises a sleeve and anoperating handle, wherein the operating handle comprises a first finger ring and a second finger ring, the first finger ring and the second finger ring are in hinged connection, and the rear end of the sleeve and a handle extending part of the first finger ring are consolidated. The dual-knot knot guide is characterized in that a connecting rod is arranged in the sleeve, the rear end of the connecting rod is fixed to the handle extending part of the second finger ring, a first knot guide ring is arranged at the working end of the connecting rod, a second knot guide ring is arranged in the direction being away from the first knot guide ring and facing the operating handle, and the first knot guide ring and the second knot guide ring are arranged side by side along a sleeve shaft. Two knot guide rings are arranged, so that two knots can be made once, besides, in the process that the plane structure of the working surfaces of the knot guide rings pushes the knots, a suture can be guaranteed not to slide out, the knots can be pushed to place accurately, the knots can be tightened, and cranial base knotting difficulty can be reduced.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a double-knot pusher for transsphenoidal endoscopic surgery. Background technique [0002] Skull base reconstruction is often required in endoscopic transsphenoidal surgery, and the operating space for nasal cavity surgery is relatively narrow. At this time, it is necessary to use a knot pusher to push the knot deep from the outside of the nasal cavity to complete the knot. The existing knot pusher is mainly used for laparoscopic surgery. , Arthroscopy cannot be applied to neuroendoscopic surgery, and transsphenoidal endoscopic surgery cannot use existing instruments to complete related operations, resulting in difficulty in knotting the dura mater after suture in skull base reconstruction. Therefore, it is very necessary to develop a knot pusher that can be used in neuroendoscopic surgery. Contents of the invention [0003] The object of the present invention is to provide a do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/04A61B17/24
CPCA61B17/0469A61B17/24A61B2017/0474
Inventor 赵宁辉代颖吕正超赵凯温倩黄旻昊罗吉
Owner 昆明医科大学第二附属医院
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