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Puncture rod and puncture outfit

A puncture rod and puncture device technology, which is applied in puncture needles, medical science, surgery, etc. It can solve the problems of difficult positioning, insufficient bonding strength of the handle seat and handle cover, and the inability of the positioning column to fit into the positioning hole, etc.

Pending Publication Date: 2021-04-09
GUANGZHOU T K MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to realize the closure of the handle seat and the handle cover, the existing technology usually realizes the closing of the handle seat and the handle cover through the interference fit between the positioning column and the positioning hole. It is very difficult to locate during the assembly process, and the requirements for the degree of interference are very high. high
If the interference is too large, the positioning post cannot fit into the positioning hole, and the assembly cannot be completed. If the interference is too small, the bonding strength between the handle seat and the handle cover is not strong enough, and it is easy to loosen

Method used

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  • Puncture rod and puncture outfit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1: Piercing rod of the present invention

[0050] refer to Figure 1 to Figure 1-7 , The puncture rod of the present embodiment includes a puncture mechanism 1 and a handle 2.

[0051] refer to Figure 1-2 with Figure 1-4 , in this embodiment, the puncturing mechanism 1 is an optical puncturing mechanism 11 capable of placing an observation endoscope for observation during puncturing.

[0052] The optical puncture mechanism 11 includes an instrument channel 11-1 and an observation end 11-2. The observation endoscope can reach the observation end 11-2 through the instrument channel 11-1. The transparent observation end 11-2 can form an observation window for real-time observation of the puncture process, making the puncture process safer.

[0053] refer to Figure 1-5 with Figure 1-6 , the handle 2 includes a handle seat 21 and a handle cover 22. The handle seat 21 includes a positioning column 21-1 and a connecting groove 21-2; the handle cover 22 i...

Embodiment 2

[0065] Embodiment 2: trocar of the present invention

[0066] refer to Figure 2 to Figure 2-3 , the puncture device of this embodiment includes the puncture rod 300 and the sheath tube 200 described in Embodiment 1.

[0067] refer to figure 2 with Figure 2-3 , the sheath tube 200 includes an end seal assembly 5 and a sleeve assembly 6 . The end surface of the end sealing assembly 5 is provided with a connection groove 51 , and the connection hook 41 of the connection mechanism 4 can be embedded in the connection groove 51 to realize the connection between the puncture rod 300 and the sheath tube 200 . The sheath channel 61 of the cannula assembly 6 matches the puncture mechanism 1 of the puncture rod 300 .

[0068] refer to diagram 2-1 with Figure 2-2 In clinical use, the puncture rod 300 is inserted into the sheath tube 200, the connecting hook 41 is embedded in the connecting groove 51, the puncture rod 300 and the sheath tube 200 are connected together, and then ...

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Abstract

The invention relates to a puncture rod. The puncture rod comprises a puncture mechanism and a handle, wherein the handle comprises a handle seat and a handle cover, the handle seat comprises positioning columns and connecting grooves; and the handle cover comprises positioning holes and connecting convex steps. Each positioning column is embedded in the corresponding positioning hole to realize positioning between the handle seat and the handle cover. The handle seat and the handle cover can be conveniently connected together through concave-convex clamping cooperative connection formed by embedding each connecting convex step into the corresponding connecting groove. Due to the fact that each positioning column and the corresponding positioning hole cooperate mainly for positioning, and connection is achieved through concave-convex clamping cooperation between the connecting grooves and the connecting convex steps, no strict interference degree requirement exists between the positioning columns and the positioning holes, and parts are easier to machine and more convenient to assemble; and besides, the connection formed by the concave-convex clamping cooperation connection mode is more reliable, and the use process is safer. Due to the fact that a puncture outfit comprises the puncture rod, the accident that the handle is loosened is not likely to happen in the clinical use process, and clinical use is safer.

Description

technical field [0001] The invention relates to a laparoscopic surgical instrument, in particular to a puncture rod and a puncture device used in laparoscopic surgery. Background technique [0002] Laparoscopic surgery has been more and more widely used. In order to avoid iatrogenic infection, the amount of disposable trocar (Trocar) used in laparoscopic surgery is also increasing. On the basis of ensuring the use performance, reduce the operation time. The movement resistance of the device in the trocar can improve the safety performance of the product during puncture. This trend has become the direction of trocar improvement. [0003] The puncture mechanisms of the puncture rods in the prior art are usually connected to the handle base by rubberizing, and then the handle base and the handle cover are closed and assembled to form a complete puncture rod. In order to realize the closure of the handle seat and the handle cover, the existing technology usually realizes the cl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34
CPCA61B17/34A61B17/3417A61B17/3478A61B2017/00477
Inventor 周星苏文宇徐华苹王玉娥
Owner GUANGZHOU T K MEDICAL INSTR
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