Lipectomy cannula

Details Lipectomy cannula Lipectomy cannula

1987-09-23

1988-10-04

Dority, Jr., Carroll B.

Surgery

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

Treating material introduced into or removed from body...

604248, 604902, 13762522, A61M 100

Patent

active

047753650

ABSTRACT:
An improved lipectomy device, or cannula, is disclosed having inner and outer tubes. The outer tube has an elongated aspiration aperture, and the inner tube has a spiral slot. A mechanism inside the handle of the device causes the inner tube to rotate, creating a traveling hole effect along the aspiration aperture. This obviates the necessity of the surgeon repeatedly pushing the cannula in and out. A valve system is also disclosed which allows the surgeon to maintain negative pressure in the vacuum line leading to the cannula while still allowing the cannula itself to be vented to ambient pressures.

REFERENCES:
patent: 312155 (1885-02-01), O'Herin
patent: 4203444 (1980-05-01), Bonnell et al.
patent: 4536180 (1985-08-01), Johnson
Body Contouring with Suction Lipectomy, by U. K. Kesselring, M.D., Clinics in Plastic Surgery, vol. 11, No. 3, Jul. 1984, pp. 393-417.

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