Videoarthroscope with one-handed control

Details Videoarthroscope with one-handed control Videoarthroscope with one-handed control

1990-01-25

1990-11-13

Grieb, William H.

Surgery

Truss

Perineal

A61B 104

Patent

active

049694502

ABSTRACT:
The present invention provides a videoarthroscope which is longitudinally compact so tht it can be held and controlled with one hand. the videoarthroscope of the present invention includes a needle assembly and a focusing assembly rotatable relative to each other to permit rotation of the needle tip. The focusing assembly includes a rotatable focusing ring. All confronting rotating surfaces are sealed by a multilobed seal and provided with a lubricant to promote both ease of movement and sealing of movable joints. The videoarthroscope includes in its optical assembly a movable focusing group comprised of two lenses and an optional fixed telescope lens.

REFERENCES:
patent: 4590923 (1986-05-01), Watanabe
patent: 4611888 (1986-09-01), Prenovitz et al.
patent: 4722000 (1988-01-01), Chatenever
patent: 4756304 (1988-07-01), Watanabe
patent: 4807594 (1989-02-01), Chatenever
patent: 4844071 (1989-07-01), Chen et al.
patent: 4854302 (1989-08-01), Allred, III et al.

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