Transurethral laparoscope cannula use for disposable engagement

Abstract

The invention provides a transurethral laparoscope cannula use for disposable engagement. The cannula comprises a cannula body and an obturator. The cannula body comprises a tube body, an inner end and an outer end, the tube body is provided with an inner cavity used as an operation channel, and the opening of the inner end is provided with a tooth structure; the obturator comprises a rod body, a front end and a tail part, wherein the rod body is in a cylindrical shape, the front end is provided with an enclosing head, the tail part is a cylindrical operation unit, and the obturator is used for enclosing the inner cavity of the cannula. The cannula is put into body through the urethra, so the urethra cannot be injured; the cannula can be also put in a laparoscope operation apparatus; the tooth structure of the inner end of the cannula can support the inner opening of the urethra to bring convenience to sowing; by the utilization of the cannula, the surgery operation difficulty of vesicourethral anastomosis and orthotopic neobladder urethral anastomosis can be lowered, thus sowing is more convenient and accurate, and urinary continence recovery of a patient after the surgery can be promoted. In addition, the tooth structure can also has an inward retracted shape, and when the cannula is put through the urethra, harm to surrounding tissue can be reduced.

Description

technical field [0001] The invention belongs to the field of medical equipment, and relates to a disposable transurethral laparoscopic sleeve for anastomosis. Background technique [0002] At present, urological surgery can be performed by minimally invasive laparoscopic anastomosis. However, in radical prostatectomy or radical cystectomy, when performing laparoscopic vesicourethral anastomosis or in situ neovesicourethral anastomosis, in order to expose the broken end of the urethra to facilitate anastomosis, the common method is to use a common catheter In and out of the urethral stump, but at this time the urethra retracts or collapses due to lack of continuous support, making suturing more difficult. In addition, due to the thin urethra and the limited field of view of the laparoscope, it is difficult to control the reasonable spacing of the suture needles. In addition, the tension at the two ends of the anastomosis is often high, which makes the operation difficult and...

AI Technical Summary

Problems solved by technology

[0003] In addition, if only the ordinary laparoscopic sleeve is extended and modified, and the obturator is converted into a smooth end of the transurethral obturator, but when the obturator passes through the laparoscopic sleeve, due to the thickness of the sleeve wall, There is a level difference between the end of the obturator and the opening of the cannula end, and the edge produced by this level difference often causes damage to the passing urethral tissue when the laparoscopic cannula enters the urethra for anastomosis

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