A new scope warmer/cleaner for laparoscopic surgery: a disposable hot pack

Area of Science:

• Minimally Invasive Surgery
• Surgical Instrumentation
• Biomedical Engineering

Background:

• Fogging and staining of laparoscope lenses impair surgical visualization.
• Existing methods for maintaining lens clarity are often inadequate.
• A need exists for integrated anti-fogging and cleaning solutions for laparoscopic instruments.

Purpose of the Study:

• To verify and develop a disposable hot pack with anti-fogging and cleaning capabilities for laparoscopes.
• To evaluate the efficacy of the developed hot pack in maintaining laparoscope lens clarity and temperature.
• To compare the performance of the prototype hot pack against conventional cleaning methods.

Main Methods:

• A disposable hot pack coated with surfactant was developed.
• Laparoscopes were inserted into a swine abdominal cavity.
• The prototype hot pack and conventional gauze were used to clean and/or heat the laparoscopic tips.
• Dirt removal, fogging occurrence, and tip temperature were quantitatively assessed.

Main Results:

• The disposable hot pack maintained a similar laparoscopic tip temperature compared to saline heating (31.1°C vs 31.2°C).
• No fogging was observed when using the prototype hot pack.
• The prototype significantly outperformed conventional gauze in maintaining tip temperature (34.0°C vs 29.5°C) and preventing fogging (0% vs 30%).
• Both methods effectively removed dirt from the laparoscopic tip.

Conclusions:

• The disposable hot pack demonstrates significant potential as an effective anti-fogging and cleaning device for laparoscopic surgery.
• This innovation can improve surgical visualization by preventing lens fogging and maintaining optimal temperature.
• The developed device offers a practical and efficient solution for a common challenge in minimally invasive procedures.