Novel device for blunt dissection in third space endoscopy: Preliminary animal study (with video)

Area of Science:

• Gastroenterology
• Endoscopic Surgery
• Medical Device Innovation

Background:

• Blunt dissection is infrequently utilized in flexible endoscopic procedures.
• A novel blunt dissection device was developed for third space endoscopy.

Purpose of the Study:

• To evaluate the feasibility, safety, and effectiveness of a new blunt dissection device.
• To compare blunt dissection with sharp dissection in creating submucosal tunnels.

Main Methods:

• A novel device using a cotton swab and flexible shaft was designed.
• Submucosal tunnels were created in swine stomachs using blunt or sharp dissection.
• Data collected included completion rates, operating time, adverse events, and submucosal injection needs.

Main Results:

• Eighteen 4-cm submucosal tunnels were successfully created.
• Blunt dissection significantly shortened operating time (239s vs. 429s).
• The blunt dissection group required fewer submucosal injections (0 vs. 5) and showed no muscle layer injuries.

Conclusions:

• Blunt dissection with the novel device is feasible and safe for third space endoscopy.
• The device offers potential benefits including reduced operating time and fewer complications.
• This technique may minimize muscle layer injury during endoscopic procedures.