Hysteroscope muscular layer tissue excision device

Abstract

The invention relates to a hysteroscope muscular layer tissue excision device, which comprises a cutter assembly, the cutter assembly comprises an inner cutter and an outer cutter, the middle of the inner cutter and the middle of the outer cutter are hollowed out, a cutter head of the outer cutter is in an arc shape, a plurality of through holes are formed in the cutter head, and a hanging lug structure is arranged at the position, making contact with the cutter head, of the inner cutter. The hysteroscope muscular layer tissue excision device is simple in structure, myoma and polyp of muscularlayers and cervix uteri can be excised, uterine adhesion partition can be excised, the multiple openings are formed in the scalpel head of the outer scalpel, and tissue in all directions can be excised without a rotating device.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a hysteroscopic myometrial tissue resection device. Background technique [0002] Hysteroscopy is a new, minimally invasive gynecological diagnosis and treatment technology. It is a fiber light source endoscope used for inspection and treatment of uterine cavity, including hysteroscope, energy system, light source system, perfusion system and imaging system; It uses the front part of the mirror body to enter the uterine cavity, and has a magnifying effect on the observed parts. It is intuitive and accurate and has become the preferred inspection method for gynecological hemorrhagic diseases and intrauterine lesions. [0003] The hysteroscopic tissue resection system derived from the hysteroscope enters the uterus through the hysteroscope channel to remove fibroids and polyps. The existing hysteroscopic resection system has the following problems: [0004] 1. Only fibroids and poly...

AI Technical Summary

Problems solved by technology

[0004] 1. Only fibroids and polyps under the endometrial layer can be removed, but fibroids and polyps in the myometrium and cervix cannot be removed, as well as the removal of uterine adhesion partition;

[0005] 2. Stepless speed regulation is not possible. For tissues of different sizes and densities, it is troublesome to use a uniform cutting speed. The cutting is inaccurate and inefficient, and it is easy to accidentally injure intrauterine tissues due to inappropriate speeds;

[0006] 3. It needs to be connected to an external drive device, which needs to be connected to the external device through a flexible shaft. The rotating noise of the flexible shaft is large, generating a lot of heat, high risk, and inconvenient to operate;

[0007] 4. The direction of the outer knife edge is fixed. When removing fibroids in different positions in the uterus, the hand-held part needs to be rotated, which is inconvenient to operate and affects the rotation of the flexible transmission shaft;

[0008] 5. The mechanical structure is complex and the production cost is high

Images