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A minimally invasive puncture device

A puncture device and puncture needle technology, applied in the direction of puncture needles, puncture needles, trocars, etc., can solve the problems of affecting the normal operation, large appearance and inconvenient use of instruments, and achieve increased convenience, convenient storage and Effect of transport, size reduction

Active Publication Date: 2016-07-06
SHANDONG WEIRUI SURGICAL MEDICAL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing minimally invasive puncture device is easy to leak air during the operation, and the gas leaked into the abdominal cavity will cause the abdominal cavity to sink and affect the normal operation
When the resected specimen tissue is taken out during the operation, the sealing assembly and the puncture sleeve assembly need to be separated. The sealing assembly and the puncture sleeve assembly of the existing trocar are assembled together, and can only be unlocked in one direction when unlocking, which is inconvenient to use
In addition, the air inlet direction and air outlet direction of the two-way valve of the trocar are in a straight line, resulting in a large appearance of the instrument

Method used

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Embodiment Construction

[0026] Such as figure 1 with figure 2 As shown, a minimally invasive trocar includes a puncture needle assembly 100 , a sealing assembly 200 and a puncture sleeve assembly 300 . The sealing assembly 200 is assembled with the puncture cannula assembly 300, the puncture needle assembly 100 cooperates with the assembly of the sealing assembly 200 and the puncture cannula assembly 300 during the puncture, and the puncture assembly 100, the sealing assembly 200 and the puncture cannula assembly The assembly of 300 is separated, and the assembly of sealing assembly 200 and puncture sleeve assembly 300 forms a surgical channel.

[0027] Such as figure 2 , Figure 14 with Figure 15 As shown, the puncture needle assembly 100 of the present invention includes a puncture needle tube 1, a puncture handle 2 and a tissue puller at the front end, the lower handle 2-1 of the puncture handle 2 is connected to the puncture needle tube 1, and the upper handle 2-2 is fixed under the handle...

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Abstract

The invention discloses a minimally invasive puncture device which comprises a puncture needle assembly, a seal assembly and a puncture sleeve assembly. Two-way unlocking is achieved between the seal assembly and the puncture sleeve assembly through an unlocking switch, and therefore operation is convenient. A protection plate and a rubber valve clack are adopted for matching in the seal assembly, the design is reasonable, and while sealing performance is guaranteed, resistance to the instrument in the passing process is reduced as far as possible. A traditional line-type platypus-type choke valve in the puncture sleeve assembly is replaced with a Y-shaped choke valve for sealing, so that the sealing performance of the puncture device is further improved. An included angle at 90 degrees is formed between the gas inlet direction and the gas outlet direction of a two-way valve on a puncture sleeve, the height and size of the puncture device are greatly reduced, storage and transportation are convenient, and the minimally invasive puncture device has the advantages of being good in sealing performance, convenient to unlock and small in appearance size.

Description

technical field [0001] The patent of the invention belongs to the field of medical devices, and in particular relates to a minimally invasive puncture device. Background technique [0002] Disposable minimally invasive puncture device is an important instrument in laparoscopic surgery. It is a supporting surgical instrument for thoracic and laparoscopic surgery. equipment. At the beginning of laparoscopic surgery, use a scalpel to incise the skin epidermis at the selected puncture site, and then use the puncture needle part of the puncture device and the puncture cannula to penetrate the skin and enter the body cavity to form a surgical working channel. During the operation, it is necessary to ensure The tightness of the working channel of the instrument. The existing minimally invasive puncture device is prone to gas leakage during the operation, and the leakage of gas input into the abdominal cavity makes the abdominal cavity sink and affects the normal operation. When ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/34
CPCA61B17/3421A61B2017/3454A61B17/3462A61B2017/3464
Inventor 姚大强汤华振谭建正马波卢燕
Owner SHANDONG WEIRUI SURGICAL MEDICAL PROD