Sealing device of minimally invasive disposable puncture apparatus

Abstract

The invention discloses a sealing device of a minimally invasive disposable puncture apparatus, relates to a sealing device used with a minimally invasive disposable puncture apparatus, and discloses an assorted surgical instrument of a minimally invasive endoscope. The sealing device comprises a locking fixing cover, a split type elastic sealing ring assembly, a positioning compressing ring and a positioning guide cover; the split type elastic sealing ring assembly comprises an outer elastic sealing ring, an inner elastic sealing ring, a first elastic cloth layer, a second elastic cloth layer, an upper fixing ring and a lower fixing ring; an elastic ring with elastic wrinkles is arranged on the outer periphery of the outer elastic sealing ring, a compressing ring positioning groove is formed in the outer elastic sealing ring, and lower fixing ring mounting positioning holes are formed in the inner periphery of the outer elastic sealing ring; the split type elastic sealing ring assembly is mounted on a mounting platform at the upper end of the locking fixing cover, the positioning guide cover is mounted on the upper portion of the positioning compressing ring, and positioning protrusions of the positioning guide cover are pressed in positioning guide cover positioning grooves in the locking fixing cover and are fixedly welded in the positioning guide cover positioning grooves. The sealing device has the advantage that the sealing device is applicable to building working channels for abdominal cavity surgery in laparoscopy and surgery procedures.

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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