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US 4,929,236 AGranted
Snap-lock fitting catheter for an implantable device
AssigneeShiley Infusaid Inc.
InventorEdward J. Sampson
Life of this patent
Estimating the term…
Abstract
An implantable infusion device having a nipple outlet over which a catheter is fitted. A locking sleeve slidably mounted on the catheter to expand over the nipple and engage the housing. The locking action provides a sensory indication by noise of tactile sensation that locking has been achieved. Both single and double lumen devices employ the locking sleeve.
Claims25
An access device for implantation comprising;
- a housing with at least a first reservoir therein, a self-sealing septum to provide subcutaneous access to said reservoir, an outlet in fluid communication with said reservoir and having a barbed nipple therein, a catheter having one end slidably mounted over said barbed nipple, and a locking sleeve having a through-hole for slidably mounting onto said catheter, said locking sleeve having a series of radially movable fingers which slide over said barbed nipple and engage said housing while compressing said catheter thereby locking said catheter and said sleeve to said housing and provide, upon engagement, a sensory indication that locking has been achieved.
An implantable infusion device comprising:
- a housing having an integral reservoir means defining a self-sealing septum for said reservoir said housing having an outlet opening, a barbed nipple section mounted in said outlet opening projecting outward and in fluid communication with said reservoir, a catheter fitted over said barbed nipple, and a locking sleeve slidably mounted over said catheter, said locking sleeve having radially movable fingers adapted to engage said housing to provide a detachable lock for said catheter, said fingers, upon engagement with said housing, providing a sensory indication that locking has been achieved.
Dependencies are inferred from the claim text.