Repeating crossbow type prostate puncture gun capable of adjusting puncture depth
A puncture depth and prostate technology, which is applied in the field of medical devices, can solve the problems of long puncture time, many puncture needles, and non-adjustable distances, and achieve the effects of avoiding relatively insufficient puncture depth, saving puncture time, and avoiding needle track planting
A puncture depth and prostate technology, which is applied in the field of medical devices, can solve the problems of long puncture time, many puncture needles, and non-adjustable distances, and achieve the effects of avoiding relatively insufficient puncture depth, saving puncture time, and avoiding needle track planting
CN114869352APending Publication Date: 2022-08-09ZHONGSHAN HOSPITAL FUDAN UNIV
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[0048] The prostate puncture gun provided by the invention can adjust the puncture depth of the puncture needle within a certain range, can avoid the implantation of the tumor needle track, and simplify the redundant actions in the puncture process.
[0049] For the sake of simplicity of description, in this article, the "prostate puncture gun with adjustable puncture depth" is sometimes abbreviated as "prostate puncture gun" or "puncture gun" or "the present invention", which have the same meaning and can be used interchangeably. . The ejection device is sometimes referred to simply as a "fire spring", they mean the same thing and are used interchangeably. Safety devices are sometimes referred to simply as "locking devices", they mean the same thing and can be used interchangeably.
[0050] As used herein, the term "front (end)" or "apex" refers to the end in the direction of the needle tip of the puncture needle. Similarly, the terms "rear (end)", "end", "upper (side)", "l...
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The invention relates to a repeating crossbow type prostate puncture gun capable of adjusting the puncture depth, and belongs to the technical field of medical instruments. Comprising a skin breaking needle, a detachable puncture needle, a needle core, a limiter, a bore, a supporting plate, a gun retreating bolt, a loading device, a firing device, a safety device and a needle bin. A skin breaking needle is fixed to one end of the supporting plate, a puncture needle penetrating through a needle core is arranged in the skin breaking needle, and the length of the puncture needle is smaller than that of the needle core. Baffle-shaped bulges are respectively arranged at the rear ends of the puncture needle and the needle core; a bore, a gun withdrawing bolt, a loading device and a firing device corresponding to the baffle-shaped bulges are arranged on the plate surface of the supporting plate; a limiter for adjusting the puncture depth is arranged at the front end of the supporting plate; the supporting plate is further provided with a puncture needle moving-out device and a needle bin used for storing and releasing puncture needles one by one. One end of the needle core close to the needle tip is provided with a tissue groove; by means of the puncture gun, the puncture depth can be adjusted, needle passage planting can be prevented, and rapid puncture can be achieved.
Description
technical field [0001] The invention relates to a continuous crossbow type prostate puncture gun with adjustable puncture depth, belonging to the technical field of medical instruments. Background technique [0002] In recent years, the incidence of prostate cancer in my country has been increasing year by year. Unlike other tumors, prostate cancer is scattered in multiple foci in the prostate gland. It is often impossible to diagnose by CT, MRI and other imaging methods. The diagnosis requires prostate biopsy. Diagnosed. About 20%-30% of elderly patients with elevated prostate-specific antigen (PSA) are diagnosed with prostate cancer by biopsy. At present, prostate biopsy is mostly a 12-needle systematic puncture. Even so, there are still some patients whose cancer tissue has not been obtained, and as the PSA continues to rise significantly, a second puncture is required. In the prior art, the prostate puncture needle is a stainless steel needle with an outer diameter of ...
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Patent Timeline
09 Aug 2022
Publication
CN114869352A
- IPC
- A61B10/02; A61B90/11
- CPC
- A61B10/0241; A61B10/0275; A61B90/11
- Inventors
- ιδΌ; ιεζ