US 5,400,767 A · Laparoscopic telescope lens cleaner and protector

Abstract

A simple, rapid and effective device for cleaning the objective lens of a laparoscope, endoscope, coeloscope or similar telescope, without the removal of said telescope from the body cavity, is disclosed. In one embodiment, the device consists of a tube, the inner diameter of which is such that it accepts the shaft of such telescope. On the inner circumference, near to or at one end of the tube, is a ridge that can direct a flow of fluid within the tube onto the objective lens at the end of a telescope shaft inserted within the tube. At the other end of the tube there is a means of making a seal, such as a flexible O-ring, that prevents or reduces the leakage of air and/or fluid between the tube and the inserted shaft of the telescope. There is an aperture in the tube which gives access to the inside of the tube. Prior to use, the shaft of the telescope is inserted into the invention so that the end of the telescope, containing the objective lens, touches or almost touches the ridge. During operation, whenever the objective lens at the end of the telescope shaft becomes soiled or obscured, fluid is injected through the aperture via a fixture. The fluid flows between the telescope shaft and the inner wall of the tube until it reaches the ridge which directs the fluid over the objective lens, washing the lens and improving or restoring visibility.

Claims15

Dependent claims

A lens cleaning device for a laparoscopic telescope comprising:

a tube having one end, an other end, a central axis and an inner diameter which accepts a shaft of a laparoscopic telescope;
a ridge positioned on an inner circumference of said tube proximate said one end of said tube and directing a fluid within said tube toward said central axis of said tube and over an objective lens of a laparoscopic telescope when inserted in said tube;
a seal that restricts passage of a fluid between said inner circumference of said tube and a shaft of a laparoscopic telescope, said seal being positioned between said ridge and said other end of said tube;
an aperture communicating with an inside of said tube between said seal and said ridge;
and
a fixture for connecting a reservoir to said aperture.

3 more elements

Dependencies are inferred from the claim text.

Laparoscopic telescope lens cleaner and protector

Life of this patent

Laparoscopic telescope lens cleaner and protector

Life of this patent

Abstract

Claims15