A retractor for operations on the arteria haemorroidalis

Abstract

The invention describes a disposable device for operating on the rectal artery, said device comprising a retractor tube (1) which is closed and rounded at its end inserted into the anal cavity. , and the external port (201) to which the gripping handle (M) is connected is opened and expanded, and the gripping handle (M) is removable for housing the lighting source (F). In the connection area between the handle and the external port of the retractor, a channel (C) is provided which houses a parabola (5) which reflects the light supplied by the above-mentioned illumination source (F) and in the same pull Reflected light is transmitted inside the opener in order to illuminate the side window (8), through which the rectal mucosa appears, on which surgery must be performed for ligation of the rectal artery. The blood flow of the rectal artery and the same artery is detected by an ultrasonic probe removably installed in a longitudinal chamber (10) arranged inside the retractor tube and connected to the above-mentioned window ( 8) Align, open on the external port (201) of the retractor, and have a lateral opening (7) to allow the probe sensor to touch the anal mucosa. The probe is preferably protected in a thin disposable and easily removable sterile sheath so that the same probe can be hygienically reused.

Description

technical field [0001] The present invention relates to a retractor for surgical operations on the rectal artery. Background technique [0002] For outpatient procedures on hemorrhoids without anesthesia, it is known to use the device described in US Patent No. 5 570 692, which comprises a retractor tube inserted into the anal cavity Closed on the middle end and open on the outer end, said outer end is provided with a gripping handle. The retractor tube is provided with an ultrasound probe on its side wall at a short distance from its closed end to detect blood flow in the rectal artery, and a lateral window near the probe through which the required probe can be detected and observed. The portion of the anal mucosa that is operated on is used to ligate the above-mentioned artery, for example, by a curved needle or by cautery. The closed end of the retractor tube may be illuminated by an illumination source housed in said end and connected to a feed mechanism provided in th...

AI Technical Summary

Problems solved by technology

This device increases production costs due to the addition of the ultrasound probe and the illumination source incorporated into its closed end, and therefore cannot be provided as a disposable product, while having some disadvantages and limitations arising from this fact

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