Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1984-07-31
1986-03-25
Truluck, Dalton L.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604198, A61M 500, A61M 2500
Patent
active
045780617
ABSTRACT:
A catheter and method are provided for injecting a quantity of a liquid, such as a medication, into tissue located immediately adjacent the head of the catheter. A hollow needle such as a hypodermic needle, is movably supported within the head of the catheter and is urged longitudinally through a passageway therein to protrude outwardly from the catheter head after the catheter is selectively located within a body duct. The needle penetrates tissue adjacent the head and a liquid is flowed thereafter through and out the end of the needle into the tissue. The needle may be moved longitudinally through a passageway extending along or parallel to the longitudinal axis of the catheter and head or may be moved longitudinally and laterally through the head to protrude from a sidewall portion thereof at an angle to the body duct into which the head is inserted and in a manner to penetrate the tissue of the duct or an organ disposed adjacent the head. Control of the catheter, needle movement through the head and flow of a liquid through and from the end of the needle, are affected from outside of the body.
REFERENCES:
patent: 3380448 (1968-04-01), Sadove et al.
patent: 3406687 (1968-10-01), Moyer
patent: 3598119 (1971-08-01), White
patent: 3659610 (1972-05-01), Cimber
patent: 3675651 (1972-07-01), Meyer
patent: 4136695 (1979-01-01), Dafoe
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