Surgery – Devices transferring fluids from within one area of body to... – With flow control means
Patent
1981-11-30
1983-11-08
Apley, Richard J.
Surgery
Devices transferring fluids from within one area of body to...
With flow control means
604247, 604268, 604264, 128 1R, A61M 2700
Patent
active
044139853
ABSTRACT:
A hydrocephalic drainage valve consisting of a hollow shank with a pointed conical tip. The shank has an intake port adjacent the conical tip. A ball check valve in the shank is urged by a coiled spring toward closing relationship with the port. A hollow set screw is adjustably mounted in the shank to vary the biasing force on the valve ball. In one form, for manual implantation, a sleeve is slidably mounted on the shank, has a centrally apertured enlarged head and has implantation enlarged threads near the head. The head has aligned opposite radial grooves which are engageable by a manual insertion tool. In other forms, for pneumatic insertion, the shank has an enlarged head, employed as a driving piston in a pneumatic insertion tube. A washer member with implantation barbs is slidably mounted on the shank and is arranged to be locked to the shank subjacent the head responsive to the pneumatic driving action, with its barbs embedded in the fetal skin around the implantation puncture, thus holding the shank in operating position with the intake port exposed in the cranial vault.
REFERENCES:
patent: 2670735 (1954-03-01), Brody
patent: 2865398 (1958-12-01), Popovich
patent: 3127894 (1964-04-01), Smith
patent: 3288142 (1966-11-01), Hakim
patent: 3298372 (1967-01-01), Feinberg
patent: 3371352 (1968-03-01), Siposs et al.
patent: 3540451 (1970-11-01), Zeman
patent: 3674050 (1972-07-01), Kuffer et al.
patent: 3692029 (1972-09-01), Adair
patent: 3807432 (1974-04-01), Cain
patent: 3889687 (1975-06-01), Harris et al.
patent: 4164943 (1979-08-01), Hill et al.
patent: 4340037 (1982-07-01), Lewicky
Bondarev et al., "Apparatus for Spraying Drugs Inside Cavities" Biomed. Eng. (U.S.A.), vol. 12, No. 5, (Sep.-Oct. 1978), Published: May, 1979.
Hodgen Gary D.
Michejda Maria
Wellner Edward
Apley Richard J.
Lester Michelle N.
The United States of America as represented by the Dept. of Heal
LandOfFree
Hydrocephalic antenatal vent for intrauterine treatment (HAVIT) does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydrocephalic antenatal vent for intrauterine treatment (HAVIT), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrocephalic antenatal vent for intrauterine treatment (HAVIT) will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2005935