A surgical device for transanally accessing the rectum of a patient

An anal and surgical technique, applied in the direction of rectoscopy, rectal electron microscopy, applications, etc., can solve the problems of unable to block the working channel of mucosal tissue, blocking visibility and working space, and limited working space
CN101547650BActive Publication Date: 2011-06-22ETHICON ENDO SURGERY INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ETHICON ENDO SURGERY INC
Publication Date
2011-06-22

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Abstract

The present invention discloses a surgical device (1) for transanally accessing the rectum of a patient comprises a circular anal dilator (2) having a cylindrical ring wall (6) adapted to be transanally inserted into the rectum in order to provide a transanal access opening therethrough and a connecting portion (8) arranged at a proximal end of the ring wall (6) and adapted to hold the ring wall (6) inside the rectum, an anoscope (3) comprising a first retaining wall (13) defining at least partially a working channel (14) and a window aperture (15) providing an access area (16) to the surrounding tissue from inside the working channel (14), said anoscope (3) being received by the ring wall (6) of the anal dilator (2) and having a length such that it protrudes distally from the ring wall (6), a shield member (4) comprising a second retaining wall (26) which can be arranged in a manner to partially overlap the window aperture (15) of the anoscope (3) in order to vary the tissue access area (16) thereof.
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Description

technical field

[0001] The present invention relates generally to surgical instruments and methods for the transanal treatment of tissue lesions, such as rectal cancer, benign tumors, polyps, or isolated anal ulcers of the rectal mucosa, and more particularly to a surgical instrument and method that can be accessed transanally for use by means of an arcuate incision A stapler (so-called CCS) is a surgical device and method for performing transanal treatments such as superficial or total thickness resections of lesions at a target site remote from the anal verge of a patient. Background technique

[0002] Known transanal access systems include circular anal dilators, obturators and anoscopes having smoothly tapered or arched ends to facilitate transanal delivery of circular anal dilators, such as is a so-called purse-string suture anoscope (PSA) that can be inserted into the rectum through a circular anal dilator. A purse-string suture anoscope (PSA) has the shape of a porti...

Claims

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