Blood sample needle assembly with vein indicator

Details Blood sample needle assembly with vein indicator Blood sample needle assembly with vein indicator

1984-08-31

1987-07-14

Howell, Kyle L.

Surgery

Truss

Pad

128765, 604190, A61B 514

Patent

active

046795715

ABSTRACT:
A liquid sample needle assembly is provided. The assembly includes a housing with a sample receiving chamber having translucent or transparent walls for determining whether access to the sample source in question has been obtained. The invention utilizes a highly absorbent material in a form which allows venting of gases displaced from the housing chamber by the liquid sample being obtained, which material expands upon contact with the liquid sample to provide a liquid impervious barrier. The absorbent material is in a separate sleeve-like form of a compacted tablet sleeve for rapid and easy insertion between the two hub parts forming the assembly housing. The improvement in this invention includes the use of an integral tapered post for seating the tablet to maintain it precisely concentric in the housing and on the post for causing each increment of the tablet to respond equally to an introduced sample. The arrangement herein is particularly appropriate for mass production techniques in that two housing parts may have inserted therein the separately formed tablet sleeve.

REFERENCES:
patent: 3401692 (1968-09-01), Harris, Jr.
patent: 3661815 (1972-05-01), Smith
patent: 3935099 (1976-01-01), Weaver et al.
patent: 3960139 (1976-06-01), Bailey
patent: 3985616 (1976-10-01), Weaver et al.
patent: 3997484 (1976-12-01), Weaver et al.
patent: 4045387 (1977-08-01), Fanta et al.
patent: 4134863 (1979-01-01), Fanta et al.
patent: 4159260 (1979-06-01), Jones et al.
patent: 4190426 (1980-02-01), Ruschke
patent: 4207870 (1980-06-01), Eldridge
patent: 4340067 (1982-07-01), Rattenborg
patent: 4385637 (1983-05-01), Akhavi
patent: 4398544 (1983-08-01), Nugent et al.
patent: 4416290 (1983-11-01), Lutkowski
patent: 4416291 (1983-11-01), Kaufman
patent: 4418703 (1983-12-01), Hoch et al.
patent: 4436098 (1984-03-01), Kaveman
patent: 4519402 (1985-05-01), Andersen
Water-Lock Product Data Sheet; Grain Processing Corp.

Affiliated with

Also associated with

Rating

Blood sample needle assembly with vein indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Blood sample needle assembly with vein indicator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blood sample needle assembly with vein indicator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1422185