NOSES surgical specimen taking-out device

A technology for taking out devices and specimens, which is applied in the field of medical devices, can solve problems such as easy deformation, inability to expand the anus, and inability to take out specimens, and achieve small cross-sectional diameters, reduce accessory tissue damage, and ensure surgical field and operating space Effect
CN114366184AActive Publication Date: 2022-04-19THE SECOND XIANGYA HOSPITAL OF CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
THE SECOND XIANGYA HOSPITAL OF CENT SOUTH UNIV
Publication Date
2022-04-19

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Abstract

The invention relates to a NOSES surgical specimen taking-out device which comprises a specimen extruding mechanism, a specimen traction mechanism, a telescopic mechanism and a protective sleeve, a connecting part is rotatably connected to the interior of a fixed end, a first-section external threaded rod is located in a threaded hole of the connecting part and a threaded hole of an external threaded part, and a second-section external threaded rod is located in a threaded hole of an internal threaded cylinder; the end part, extending out of the connecting part, of the first-section external threaded rod is connected with the adsorption end; the specimen extrusion mechanism comprises a plurality of rotating units, supporting strips with rebound resilience are fixed to the two ends of one side of an extrusion rod, mounting holes allowing the supporting strips to stretch in are formed in the two ends of the other side of the extrusion rod, and one end of the extrusion rod is hinged to the fixed end and the rotating end through a first connecting rod and a second connecting rod respectively; according to the anal canal expanding device, a natural orifice is expanded, so that the stress of the anal canal is uniform, the damage to secondary tissues is reduced, and the operation field and the operation space are guaranteed.
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Description

technical field

[0001] The invention belongs to the field of medical instruments, and in particular relates to a device for taking out NOSES surgical specimens. Background technique

[0002] Colorectal cancer is a common digestive tract tumor in my country, and its morbidity and mortality rank third and fifth among malignant tumors, respectively. Comprehensive treatment based on surgery is the main treatment method. With people's ever-increasing needs for a better life, the demand for anal preservation, minimally invasive, and postoperative pain reduction and other complications is increasing. However, the traditional conventional laparoscopic radical resection of colorectal cancer requires an auxiliary incision of about 5-10 cm on the abdominal wall to complete the removal of the specimen. This auxiliary incision is associated with increased postoperative pain and wound complications (including wound infection, formation of incisional hernia, tumor Cell implantation trans...

Claims

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