Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1982-05-10
1984-06-12
Truluck, Dalton L.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604164, 604264, A61M 500, A61M 2500
Patent
active
044539282
ABSTRACT:
The tunneling apparatus includes a body portion (A) with an elongated shaft (10) having a hollow passage (12) therethrough, a tube (B) slidably received on the shaft, and a syringe (C) connected with a trailing end of the hollow passage. The shaft has a blunt tip (14) with an outlet aperture (16) in fluid communication with the hollow shaft passage. The tube has a tapered leading end (30). In use, the tube is slidably received on the shaft with its tapered leading end adjacent the blunt tip and the syringe is filled with anesthesia. The shaft and tube are advanced under the patient's skin and, simultaneously, the syringe is operated to pump the anesthesia through the tip aperture to anesthetize the tissue adjacent the tip. After the subcutaneous tunnel is formed, the shaft and syringe are withdrawn leaving the tube below the skin to define the tunnel. A catheter is passed through the tube and the tube removed leaving the catheter subcutaneously positioned.
REFERENCES:
patent: 3127894 (1964-04-01), Smith
patent: 3670729 (1972-06-01), Bennett et al.
patent: 3840008 (1974-10-01), Noiles
patent: 4014333 (1977-03-01), McIntyre
patent: 4147164 (1979-04-01), Behney
patent: 4299228 (1981-10-01), Peters
patent: 4327722 (1982-05-01), Groshong et al.
"A Modified Treatment for TPN Catheter Insertion" Nutritional Support Services, vol. 2, No. 2, Feb. 1982, pp. 44 & 47.
The Cleveland Clinic Foundation
Truluck Dalton L.
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