Main body tube for puncture tube assembly

A technology of main tube and puncture tube, which is applied in the direction of puncture needles, puncture needles, catheters, etc., and can solve problems such as not being able to meet different on-site scenarios

Active Publication Date: 2020-11-17
魏传奎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The length of the extension tube of the puncture tube assembly in the prior art is fixed, which cannot meet the needs of different on-site scenarios

Method used

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  • Main body tube for puncture tube assembly
  • Main body tube for puncture tube assembly
  • Main body tube for puncture tube assembly

Examples

Experimental program
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Embodiment Construction

[0055] Embodiments of the present invention are disclosed herein, however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be practiced in various ways. Therefore, this disclosure is not to be interpreted as limiting, but merely as a basis for the claims and as a basis for teaching one skilled in the art how to use the invention. Embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. For the convenience of expression, the side close to the operator will be defined as the proximal end, and the side far away from the operator will be defined as the far end.

[0056] Figure 1-10 A puncture tube assembly 1 for laparoscopic surgery is depicted. The puncture tube assembly 1 includes a sealing assembly 2 and an extension tube assembly 3 . Figure 1-3 The structure and composition of the seal assembly 2 is depicted. The sealing assembly 2 can be divided into a first s...

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Abstract

The invention discloses a main body tube for a puncture tube assembly. The main body tube comprises a main tube head, a main tube tail and a main tube wall extending between the main tube head and themain tube tail. The inner surface of the main tube wall is provided with an axially-arranged guide rail groove, one end of the guide rail groove penetrates through the main tube tail, and the other end of the guide rail groove extends to an adjacent area of the main tube head towards a near end. Annular through grooves penetrating through the main tube wall are further formed in the inner surfaceof the main tube wall. The plurality of annular through grooves are distributed in the axial direction of the main body tube. The two adjacent annular through grooves define an annular beam arm. Oneend of each annular through groove communicates with the guide rail groove to form an annular groove inlet.

Description

technical field [0001] The invention relates to a minimally invasive surgical instrument, in particular to a main body tube used for a puncture tube assembly. Background technique [0002] A trocar is a surgical instrument used to establish an artificial channel into a body cavity in minimally invasive surgery (especially hard tube endoscopic surgery). Usually consists of a puncture tube assembly and a puncture needle. Its general clinical use method is: first cut a small opening on the patient's skin, then pass the puncture needle through the puncture tube assembly, and then penetrate the abdominal wall through the skin opening and enter the body cavity together. Once in the body cavity, the needle is removed, leaving the puncture tube assembly as a passage for the instrument to enter and exit the body cavity. [0003] In hard tube endoscopic surgery, an insufflation machine is usually used to continuously perfuse gas (such as carbon dioxide gas) into the patient's abdomi...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): A61B17/34
CPCA61B17/3415A61B17/3421A61B17/3478A61B2017/3419A61B2017/3445
Inventor曾国庆
Owner魏传奎