Flexible surgical instruments with suction

Details Flexible surgical instruments with suction Flexible surgical instruments with suction

1998-06-29

2000-04-11

Stright, Ronald

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604523, 604533, 604264, 600433, 600585, A61M 2500

Patent

active

060483393

ABSTRACT:
A surgical instrument (10) includes a rigid stem section (12) defining a longitudinal axis (32) of the surgical instrument. The rigid stem section (12) has a central passage (86) for aspirating human tissue through the rigid stem section. A flexible stem section (14) extends from the rigid stem section (12). The flexible stem section (14) has a central passage (86) for aspirating human tissue through the flexible stem section. The flexible stem (14) section has a distal end portion (68) defining a suction opening (74) of the surgical instrument (10). The suction opening (74) communicates with the central passage (86) of the flexible stem section (14). The flexible stem section (14) comprises a bendable outer tubular member (60) and a bendable inner tubular member (90) slidable within the outer tubular member. The outer tubular member (60) has a neutral axis of bending (66). The inner tubular member (90) has a neutral axis of bending (102) spaced apart from the neutral axis of bending (66) of the outer tubular member (60). The flexible stem section (14) is movable between a plurality of orientations relative to the axis (32) in response to relative sliding movement between the inner and outer tubular members (90, 60).

REFERENCES:
patent: 5669926 (1997-09-01), Aust et al.
patent: 5851212 (1998-12-01), Zirps et al.
patent: 5911715 (1999-06-01), Berg et al.

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