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Combination type electric cutting knife of prostate

A prostate and combined technology, applied in the field of medical devices, can solve the problems of poor cutting performance, small quality, damage to the urethra, etc., and achieve good cutting performance, good vaporization performance, and reduce difficulty

Inactive Publication Date: 2007-12-05
王璠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: more bleeding, difficult to dissect tissue
The reason is that the arc-shaped cutter is relatively thin, has a small mass, and has a large pressure on the tissue, while the shovel-shaped cutter has a large mass, and its blade must not be too thin, and must be blunt, otherwise it will damage the urethra. Less pressure, so less cutting performance
At the same time, we also noticed that the two processes of cutting and vaporization have very inconsistent requirements on the performance of the cutter. Vaporization requires the cutter to have a higher quality, and the blade is too thin. This has formed a pair of contradictions that are difficult to resolve, and it is difficult for a single cutter to meet such requirements.

Method used

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  • Combination type electric cutting knife of prostate
  • Combination type electric cutting knife of prostate

Examples

Experimental program
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Embodiment Construction

[0030] The first embodiment: as shown in Figures 1 and 2, the working principle and supporting equipment of this electric prostate cutter are exactly the same as those of the prior art, and the operating parts involved are also based on the cutter bar 1 and the cutter head 2. The end of cutter bar 1 is a joint that can be connected with the power line. The front of the joint is connected with a conductive rod. There is an insulating layer outside the conductive rod. There is a section of metal pipe outside the insulating layer. A cutter head 2 is installed in the front, and a cutting knife is installed at the front end of the cutter head 2. The difference is: currently there is only one cutting knife on the cutting head of the electric prostate cutting knife used clinically, but there are two cutting knives in this embodiment. Visible by Fig. 3,4,5: what the cutting knife of the front is vaporization knife 4, the cutting knife of the back is cutting knife 3, has the distance m...

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Abstract

The present invention relates to medical equipment, and is especially one kind of combined electric knife for prostate. The combined electric knife is superior to available one, which consists of one knife bar, one knife head and one knife, and has two knifes, including one arc linear knife with excellent cutting performance and one plate vaporizing knife with excellent vaporizing performance. The combined electric knife has raised performance, and capacity of facilitating surgical operation and raising operation quality.

Description

Technical field [0001] The invention is a medical device, that is, a combined electric prostate cutter. Background technique [0002] Transurethral resection of prostatic hyperplasia is a minimally invasive surgery that has been used for many years and widely popularized. The instrument used in this operation is a prostate resection knife, also known as a resectoscope. In addition to having a set of complex electrical control equipment, its operating parts are mainly composed of a slender knife rod, a front knife head, and a cutting knife. When working, this kind of electric cutter enters the prostate from the urethra through the endoscope, and the endoscope reflects the intraglandular image on the monitor in the operating room, and the doctor performs diagnosis and operation according to the image. The operation method is to heat up the cutting knife and the contacted tissue through high-frequency current, and use high temperature to cut off the hyperplastic tissue in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/04A61B17/3209
Inventor 王璠
Owner 王璠
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