Surgery – Truss – Perineal
Patent
1977-02-14
1979-04-03
Michell, Robert W.
Surgery
Truss
Perineal
128330, 128347, 128 2B, 3 1, 3 19, 119 96, A61D 100, A61F 124
Patent
active
041471644
ABSTRACT:
A method of performing canine ear or other implantations in order to correct a faulty ear carriage by erection of the ear, utilizing three basic surgical pieces or implements in the form of (1) an elongated cut-forming shank (trocar) having a sharp distal end which is used to incise the ear so that the shank may be pushed along the general plane of the ear between the outer skin and the inner cartilage to create a duct which crosses over or bridges the weakened area of the cartilage, (2) an open-ended sheath (cannula) which is slidable onto the shank in close fitting relation and is adapted to be pushed into the duct as it is being created by the shank to the end that when the shank is withdrawn from the thus inserted sheath the latter remains within the duct and establishes an open-ended tunnel for reception of an ear-rigidifying implant, and (3) a pusher or thrust member which has a blunt forward end and is used to push the implant into the tunnel and consequently into the duct, and to hold it there while the sheath is being withdrawn. Withdrawal of the sheath from the duct by sliding it rearwardly on the thrust member, followed by withdrawal of the thrust member, leaves the implant embedded in the duct which then collapses or shrinks on the implant. A minor suture closes the initial incision at the mouth of the duct and the implantation is thus completed in an exceptionally short length of time and with a minimum amount of pain and hemorrhage.
REFERENCES:
patent: 1655158 (1928-01-01), Muir
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patent: 3620216 (1971-11-01), Szymanski
patent: 3788320 (1974-01-01), Dye
patent: 3820545 (1974-06-01), Jefferts
patent: 3921632 (1975-11-01), Bardini
patent: 3994287 (1976-11-01), Turp et al.
patent: 4010494 (1977-03-01), Sauer
Gerlach Norman H.
Michell Robert W.
Rose Arthur S.
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