Closed system over-the-needle I.V. catheter

Details Closed system over-the-needle I.V. catheter Closed system over-the-needle I.V. catheter

1989-12-12

1990-10-30

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604167, 604122, A61M 5178

Patent

active

049665863

ABSTRACT:
An over-the-needle I.V. catheter is depicted for attachment to an I.V. fluid supply. This product is primed prior to puncture of a patient's blood vessel. This product includes a catheter hub with an attached flexible catheter having its forward end tapered to provide penetration capability. This hub has a connection to I.V. fluid supply. The catheter is sized to accept a needle which in mounted condition has its sharpened tip extending from the entering end of the catheter. Venting is provided. The needle when and as withdrawn leaves a hole in a seal which in this product utilizes a resilient disc which may or may not be slit. Two washers are employed to assist in sealing of this needle withdrawal hole. A threaded cap is rotated just prior to use to bring this resilient disc under compression. Alternate means is provided by a bayonet-type of force actuation and lock.

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patent: 4869718 (1989-09-01), Brader

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