Dilator for application in medical field

Details Dilator for application in medical field Dilator for application in medical field

1978-11-21

1980-10-21

Michell, Robert W.

Surgery

Truss

Pad

128349BV, A61M 2902, A61M 2500

Patent

active

042288010

ABSTRACT:
A dilator for application in the medical field, comprises a hollow body made of an elastically deformable material and defining a cavity. Ducts hydropneumatically connect the cavity of the body to a source of pressurized fluid, valves controlling the hydropneumatical communication between the cavity and the source of pressure fluid and the outside. The body expands when positioned in situ and when in hydropneumatic communication with the source of pressurized fluid and being thereby effective to dilate the corporeal application field.

REFERENCES:
patent: 2507858 (1950-12-01), Kegel
patent: 2701559 (1955-12-01), Cooper
patent: 3478743 (1969-12-01), Ericson
patent: 3528869 (1970-12-01), Dereniuk
patent: 3799173 (1974-03-01), Kamen
patent: 3938504 (1976-02-01), Dickinson et al.
patent: 3939820 (1976-02-01), Grayzel
patent: 4085757 (1978-04-01), Pevsner
patent: 4137922 (1979-02-01), Leininger et al.

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