Guillotine cutter used with medical procedures

Details Guillotine cutter used with medical procedures Guillotine cutter used with medical procedures

1998-04-13

1999-11-09

Buiz, Michael

Surgery

Instruments

Cutting, puncturing or piercing

606175, 606169, 604 22, 604 35, A61B 1732

Patent

active

059805463

ABSTRACT:
A guillotine surgical cutter. The cutter includes an inner sleeve that moves within the inner channel of an outer sleeve. The distal end of the outer sleeve may have a plurality of outer ports. The inner sleeve may also have an inner channel and one or more openings that are in fluid communication with the outer ports of the outer sleeve. The inner sleeve can be connected to a diaphragm and a disk spring. The diaphragm may be adjacent to a drive chamber that is coupled to a source of pressurized air by a control valve. Actuation of the control valve pressurizes the drive chamber and moves the inner sleeve relative to the outer sleeve. The cutter may include a snap spring that is attached to the disk spring and which provides an additional acceleration of the inner sleeve. The springs return the inner sleeve back to the original position when the control valve is switched to reduce the pressure of the drive chamber.

REFERENCES:
patent: 5106364 (1992-04-01), Hayafuji et al.
patent: 5527332 (1996-06-01), Clement

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