A minimally invasive disposable trocar sealing device

Abstract

Disclosed is a sealing device, as a complementary surgical instrument of a minimally invasive endoscope, used with a minimally invasive disposable penetrator, which is suitable for laparoscopic examinations and establishing an abdominal surgery working channel during surgery. The sealing device comprises a locking-fixing cover (9), a split type elastic sealing ring component, a positioning-compressing ring (15) and a positioning-guiding cover (16), wherein the split type elastic sealing ring component comprises an elastic sealing ring outer ring (12-2), an elastic sealing ring inner ring (12-1), a first elastic fabric layer (11), a second elastic fabric layer (13), an upper fixing ring (14) and a lower fixing ring (10); an elastic ring with elastic wrinkles (12-2-1) is provided at the outer periphery of the elastic sealing ring outer ring (12-2), the elastic sealing ring outer ring (12-2) is provided with a compressing-positioning groove and a mounting, and a positioning hole (12-4) mounted on the lower positioning ring (10) is provided at the inner periphery of the elastic sealing ring outer ring (12-2); and the split type elastic sealing ring component is mounted on a mounting platform (9-1) at the upper end of the locking-fixing cover (9), the positioning-guiding cover (16) is mounted at the upper part of the positioning-compressing ring (15), and a positioning projection (16-3) of the positioning-guiding cover (16) is mounted and compressed in a positioning groove (9-2) of a positioning-guiding cover on the locking-fixing cover (9) and is fixed by welding.

Description

technical field [0001] The invention relates to a sealing device for a minimally invasive disposable puncture device, which relates to a sealing device used in conjunction with a minimally invasive disposable puncture device, which is a matching surgical instrument for a minimally invasive laparoscopy, and is suitable for setting up during laparoscopy and surgery. For abdominal surgery working channel. technical background [0002] The front end of the puncture cone of the current disposable puncture device uses a relatively sharp blade, which is easy to scratch other tissues in the interior, causing bleeding and causing unnecessary pain to the patient. Leak out, so that abdominal cavity subsidence affect the normal operation of laparoscopic surgery. [0003] At present, the elastic sealing cap of the disposable puncture device is made of silicone rubber. When the surgical puncture operation is performed, the tubular puncture cone and the olecranon puncture knife cone arran...

AI Technical Summary

Problems solved by technology

[0002] The front end of the puncture cone of the current disposable puncture device uses a relatively sharp blade, which is easy to scratch other tissues in the interior, causing bleeding and causing unnecessary pain to the patient. Leak out, causing the abdominal cavity to sink and affect the normal operation of laparoscopic surgery

[0003] At present, the elastic sealing cap of the disposable puncture device is made of silicone rubber. When the surgical puncture operation is performed, the tubular puncture cone and the olecranon puncture knife cone arranged at the front end will easily puncture the elastic sealing cap and cause abdominal leakage. gas, the operation cannot proceed normally

[0004] In addition, the elastic sealing ring in Chinese Patent No. 2012203167506 of the sealing device of disposable puncture device for minimally invasive use is inserted into the puncture hole of the elastic sealing ring during the puncture operation. High, it is difficult for surgical instruments to shake left and right, and the operation is inconvenient

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