Proctoscope With Obturator

Quick Answer: A proctoscope with obturator is a short tubular speculum with a removable, rounded obturator that eases insertion. Once the obturator is withdrawn, the tube gives a view of the anal canal and lower rectum. It is taught in surgical and nursing skills sessions on examination models.

Tube and Obturator: How the Instrument Is Used

The obturator is a smooth, rounded rod that fills the tube and closes its open end, so the instrument can be inserted without the tube’s edge catching. Once in place, the obturator is removed, leaving a clear channel for inspection with a light. The listing image file name refers to a Kelly pattern proctoscope; the pattern is not given in the title.

Proctoscopy is used to inspect the anal canal and lower rectum. In teaching, students learn the sequence of explanation and consent, positioning on the left side, inspection and digital examination, and only then insertion of the lubricated tube with the obturator in place.

Compared with the bivalve rectal speculum, which spreads the canal with two blades, the proctoscope gives a circular view through a rigid tube.

Applications

• Instrument identification in surgery and nursing courses
• Examination technique on rectal examination models
• OT technician training in preparing procedure trays
• Demonstrating how obturators are used with tubular instruments

Specifications

Care & Handling

• Clean the tube and obturator separately, brushing the inside of the tube.
• Sterilise or disinfect as the material allows, dry, and store the two parts together so they are not separated.
• Check the tube rim for nicks or roughness before each use.

Why Choose LabEquip

Medical and nursing colleges and surgical skills centres order proctoscopes for examination teaching. LabEquip lists this instrument for teaching use in the Biology Lab Products range and does not claim medical-device registration for it; hospitals intending patient use should give their requirements through the contact page.

Frequently Asked Questions

What is the obturator for?

It fills and closes the end of the tube during insertion, giving a smooth, rounded tip. It is removed once the tube is in place so the canal can be viewed.

Why is the tube lubricated before insertion?

A water-based lubricant on the tube and the obturator tip reduces friction and discomfort, and together with the rounded obturator it lets the instrument pass the anal sphincter smoothly. Students practise this step on teaching models so it becomes routine.

How does a proctoscope differ from a sigmoidoscope?

A proctoscope is short and views the anal canal and lower rectum. A sigmoidoscope is longer and reaches higher into the rectum and sigmoid colon.

What position is used for proctoscopy?

Usually the left lateral position, with the knees drawn up. Teaching models are designed for this position.

What light source does it need?

Some proctoscopes take an attachable light handle; others rely on a separate examination lamp or head light. The listing does not specify the light arrangement.

How is the instrument cleaned?

Separate tube and obturator, rinse, wash with detergent and a bottle brush, and then disinfect or sterilise as appropriate before drying.

Last Updated: September 2026