Devices and methods for removal of debris from the objective lens of an endoscope

摘要

The invention encompasses devices and methods used to keep the objective lens of a viewing or illuminating device, specifically an endoscope, free from obstructive fluid and dirt; specifically a device having a hollow body designed to fit over an endoscope, and a transparent lens cover film that is retained within the device and that is threaded in front of the objective lens of an endoscope, thereby maintaining a clear and unobstructed transparent window in front of the endoscope lens.

主权项

1. A device for maintaining a clear optical path comprising:
an elongated hollow body comprising a proximal end and a distal end, wherein the elongated hollow body defines a lumen adapted to receive an optical apparatus; at least one guide channel formed in the elongated hollow body terminating in a guide slit at the distal end of the elongated hollow body; a guide element coupled with the elongated hollow body, the guide element including a distal tip member attached distally to the distal end of the elongated hollow body such that the distal tip member projects beyond the distal end and lumen of the elongated hollow body; a transparent lens cover film disposed within the at least one guide channel of the elongated hollow body, wherein the transparent lens cover film emerges out of the at least one guide channel in the elongated hollow body through the guide slit and is guided by the guide element so as to describe a preset travel path passing in front of and substantially parallel to a lens of the optical apparatus; and a section of the transparent lens cover film entirely covering the lens configured to move outside a line of sight of the lens when the first section is replaced by a second section of the transparent lens cover film.