Surgery – Truss – Pad
Patent
1973-12-10
1977-05-10
Pace, Channing L.
Surgery
Truss
Pad
A61B 1736
Patent
active
040222152
ABSTRACT:
A cryogenic apparatus including a highly versatile probe with a deformable tip, and cryogen supply systems for delivering cryogen to the probe. The probe includes a tubular stem with a resilient mass of porous material such as copper mesh positioned adjacent one end of the stem. A thin cryogen impervious membrane such as latex or silicone rubber extends around the porous mass and around the adjacent stem end region. The membrane and the porous mass together form a deformable tip which can be shaped to almost any desired configuration. Cryogen introduced into the stem penetrates the porous mass but is confined by the membrane so it does not come in direct contact with selected surface areas being treated. A dispenser bottle cryogen supply system is provided for introducing cryogen into the probe stem. Alternate continuous flow cryogen supply systems are provided which permits probe use in any attitude of inclination.
Novel cryosurgical methods employing the apparatus are described which illustrate the versatility of the improved system.
REFERENCES:
patent: 2305367 (1942-12-01), Webb
patent: 3369550 (1968-02-01), Armao
patent: 3421508 (1969-01-01), Nestrock
patent: 3439681 (1969-04-01), Riley
patent: 3467104 (1969-09-01), Burbridge et al.
patent: 3534739 (1970-10-01), Bryne
patent: 3536075 (1970-10-01), Thomas, Jr.
patent: 3786814 (1974-01-01), Armao
patent: 3900035 (1975-08-01), Welch et al.
Zacarian, S.A., "Cryosurgery in Dermatology", IN International Surg: 47.sup.6 : pp. 528-534, 1967.
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