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Related Concept Videos

Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

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Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
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Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

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Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
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In anatomy, several standard anatomical positions are used as references for describing the position and orientation of different body parts. These positions help provide a common frame of reference when discussing anatomical structures. The anatomical position is the standard reference point for describing the body's position and orientation. In this position:
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Updated: Jun 25, 2025

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Insufflation-Free, Perianal Work Platform.

Henry Buchwald1, Hector Menchaca1, Van Michalek1

  • 1Surgery Department, University of Minnesota Medical School Twin Cities Campus, Minneapolis, MN, USA.

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|May 20, 2024
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Summary
This summary is machine-generated.

A novel surgical tool allows for insufflation-free colorectal surgery via anal access, potentially reducing infection risks and the need for general anesthesia. This innovation aims to improve safety and accessibility for perianal operations.

Keywords:
biomedical engineeringcolorectal surgeryflexible endoscopy

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Area of Science:

  • Surgical innovation
  • Minimally invasive surgery
  • Colorectal surgery

Background:

  • Increasing use of endoscopic and robotic approaches for colorectal surgery.
  • Current reliance on bowel insufflation for visualization in perianal operations.
  • Risks associated with peritoneal insufflation during full-thickness resections, including infection and need for general anesthesia.

Purpose of the Study:

  • To introduce a patented tool designed for insufflation-free laparoscopic surgery.
  • To adapt the tool for application in perianal colorectal surgery.
  • To overcome limitations of current visualization methods in endoscopic anal access procedures.

Main Methods:

  • Development of a patented surgical instrument.
  • Modification of an initial design for abdominal cavity access.
  • Application of the modified instrument for perianal colorectal procedures.

Main Results:

  • The tool was originally designed for single 2cm port abdominal access, enabling insufflation-free surgery under local anesthesia.
  • The instrument was subsequently modified for use in perianal colorectal surgery.
  • Potential to facilitate procedures without peritoneal insufflation.

Conclusions:

  • The modified patented tool offers a potential solution for insufflation-free perianal colorectal surgery.
  • This innovation may reduce complications associated with peritoneal insufflation.
  • The tool could enable procedures under local anesthesia, enhancing patient safety and accessibility.