US4883764A — Blood test strip

Claim 1

Independent Claim 95 words

A blood test strip comprising: a support member having an upper surface and a lower surface, a sheet-like separating member disposed on the upper surface of the support member for separating blood cells from plasma, the separating member including an upstream end and a downstream end, a sheet-like recipient member disposed on the upper surface of said support member in a generally co-planar, side-by-side relation with the separating member, the recipient member including an upstream end disposed in an adjacent, non-interwoven relation to the downstream end of the separating member to define an incision therebetween.

Claim 2

Dependent Claim 95 words

A blood test strip comprising: a support member having an upper surface and a lower surface, a sheet-like separating member disposed on the upper surface of the support member for separating blood cells from plasma, the separating member including an upstream end and a downstream end, a sheet-like recipient member disposed on the upper surface of said support member in a generally co-planar, side-by-side relation with the separating member, the recipient member including an upstream end disposed in an adjacent, non-interwoven relation to the downstream end of the separating member to define an incision therebetween.

Claim 3

Dependent Claim 34 words

The invention of claim 1 wherein said recipient member comprises at least two sheet-like recipient member segments disposed adjacent to each other in a generally co-planar, side-by-side, non-interwoven relation to define an incision therebetween.

Claim 4

Dependent Claim 39 words

The invention of claim 2 wherein the support member includes a detachment means disposed adjacent to at least one of said incisions for permitting at least one of said recipient member segments to be detached from said separating member.

Claim 5

Dependent Claim 24 words

The invention of claim 1 wherein said upstream end of said separating member is generally wider than said downstream end of said separating member.

Claim 6

Dependent Claim 32 words

The invention of claim 1 wherein said separating member has a generally isosceles trapezoid shape, the upstream end of said separating member being wider than the downstream end of the separating member.

Claim 7

Dependent Claim 24 words

The invention of claim 1 wherein said separating member is wider than the recipient member to impart a T-shape to said blood test strip.

Claim 8

Dependent Claim 22 words

The invention of claim 1 further comprising mechanical fastener means for fastening the separating member and recipient member to the support member.

Claim 9

Dependent Claim 12 words

The invention of claim 7 wherein said mechanical fastener means comprises staples.

Claim 10

Dependent Claim 12 words

The invention of claim 7 wherein said mechanical fastener means comprises thread.

Claim 11

Dependent Claim 12 words

The invention of claim 7 wherein said mechanical fastener means comprises spikes.

Claim 12

Dependent Claim 14 words

The invention of claim 7 wherein said mechanical fastener means comprises double stick tape.

Claim 13

Dependent Claim 18 words

The invention of claim 1 wherein said recipient member comprises a hydrophilic polymer having a defined absorptive capacity.

Claim 14

Dependent Claim 25 words

The invention of claim 1 further comprising a cover member hingedly attached to the support member to overlay the recipient member and the separating member.

Claim 15

Dependent Claim 53 words

The invention of claim 13 wherein said cover member includes a top surface and a bottom surface, and said recipient member is disposed on the bottom surface, further comprising a reagent pad disposed on said top surface directly above said recipient member, the reagent pad being in fluid communication with said recipient member.

Claim 16

Dependent Claim 28 words

The invention of claim 14 wherein said reagent pad is impregnated with a chemical reagent for initiating a reaction with a blood component collected on said recipient member.

Claim 17

Dependent Claim 142 words

A test strip for separating components of a body fluid comprising: a support member having an upper surface and a lower surface, a generally sheet-like separating member including an upstream end and a downstream end, a generally sheet-like recipient member including an upstream end and a downstream end, and a cover member attached by hinges to the support member for overlaying the support member, the cover member including an underside surface, one of said separating member and recipient member being attached to said upper surface of said support member and the other of said separating member and recipient member being attached to said underside surface of said cover member, the member attached to the support member and the member attached to the cover member being cooperatively positioned to be placeable in a generally co-planar, side-by-side, non-interwoven relation to define an incision therebetween.

Claim 18

Dependent Claim 142 words

A test strip for separating components of a body fluid comprising: a support member having an upper surface and a lower surface, a generally sheet-like separating member including an upstream end and a downstream end, a generally sheet-like recipient member including an upstream end and a downstream end, and a cover member attached by hinges to the support member for overlaying the support member, the cover member including an underside surface, one of said separating member and recipient member being attached to said upper surface of said support member and the other of said separating member and recipient member being attached to said underside surface of said cover member, the member attached to the support member and the member attached to the cover member being cooperatively positioned to be placeable in a generally co-planar, side-by-side, non-interwoven relation to define an incision therebetween.

Claim 19

Dependent Claim 16 words

The invention of claim 16 wherein said recipient member comprises first and second recipient member segments.

Claim 20

Dependent Claim 38 words

The invention of claim 17 wherein one of said first and second recipient member segments is attached to said cover member, and the other of said first and second recipient member segments is attached to said support member.

Claim 21

Dependent Claim 20 words

The invention of claim 17 wherein both said first and second recipient member segments are attached to said cover member.

Claim 22

Independent Claim 117 words

A method for separating plasma from whole blood comprising: providing a blood test strip including (1) a support member, (2) a generally sheet-like separating member, and (3) a generally sheet-like recipient member, the recipient member being disposed in a generally co-planar, side-by-side, non-interwoven relation with the separating member to define an incision therebetween, the recipient member having a defined absorptive capacity, applying a quantity of blood to the separating member in excess of the combined absorptive capacities of the separating member and recipient member, permitting the blood to flow in the separating and recipient members, collecting a defined volume of plasma on the recipient member, and retaining the cellular components of the blood in the separating member.

Claim 23

Independent Claim 117 words

A method for separating plasma from whole blood comprising: providing a blood test strip including (1) a support member, (2) a generally sheet-like separating member, and (3) a generally sheet-like recipient member, the recipient member being disposed in a generally co-planar, side-by-side, non-interwoven relation with the separating member to define an incision therebetween, the recipient member having a defined absorptive capacity, applying a quantity of blood to the separating member in excess of the combined absorptive capacities of the separating member and recipient member, permitting the blood to flow in the separating and recipient members, collecting a defined volume of plasma on the recipient member, and retaining the cellular components of the blood in the separating member.

Claim 24

Dependent Claim 60 words

The method of claim 20 wherein the step of providing a recipient member comprises the step of providing a recipient member comprised of at least two recipient member segments disposed adjacent to each other in a side by side, non-interwoven relation to define an incision therebetween, one of said at least two recipient member segments having said defined absorptive capacity.

Claim 25

Independent Claim 140 words

A method for separating plasma from whole blood comprising: providing a blood test strip including: (1) a support member, (2) a separating member, and (3) a recipient member comprising at least two recipient member segments disposed in a side-by-side, non-interwoven relation to define an incision therebetween, one of said at least two recipient member segments having a defined absorptive capacity, applying a quantity of blood to the separating member in excess of the combined absorptive capacities of the separating member and the recipient member, permitting the blood to flow in the separating and recipient members, collecting a defined volume of plasma on the recipient member, retaining the cellular components of the blood in the separating member, detaching said recipient member segment having a defined absorptive capacity from said strip, and utilizing the plasma collected thereon in a blood test procedure.

Claim 26

Independent Claim 140 words

A method for separating plasma from whole blood comprising: providing a blood test strip including: (1) a support member, (2) a separating member, and (3) a recipient member comprising at least two recipient member segments disposed in a side-by-side, non-interwoven relation to define an incision therebetween, one of said at least two recipient member segments having a defined absorptive capacity, applying a quantity of blood to the separating member in excess of the combined absorptive capacities of the separating member and the recipient member, permitting the blood to flow in the separating and recipient members, collecting a defined volume of plasma on the recipient member, retaining the cellular components of the blood in the separating member, detaching said recipient member segment having a defined absorptive capacity from said strip, and utilizing the plasma collected thereon in a blood test procedure.

Claim 27

Dependent Claim 106 words

A blood test trip comprising: a support member having an upper surface and a lower surface, a separating member disposed on the supper surface of the support member, the separating member including an upstream end and a downstream end, a recipient member disposed on the upper surface of the support member in a side-by-side relation with the separating member, the recipient member including an upstream end disposed in an adjacent, non-interwoven relation to the downstream end of the separating member to define an incision therebetween, and a detachment means disposed adjacent to the incision for permitting the recipient member to be detached from said separating member.

Claim 28

Dependent Claim 106 words

A blood test trip comprising: a support member having an upper surface and a lower surface, a separating member disposed on the supper surface of the support member, the separating member including an upstream end and a downstream end, a recipient member disposed on the upper surface of the support member in a side-by-side relation with the separating member, the recipient member including an upstream end disposed in an adjacent, non-interwoven relation to the downstream end of the separating member to define an incision therebetween, and a detachment means disposed adjacent to the incision for permitting the recipient member to be detached from said separating member.

Claim 29

Dependent Claim 58 words

The invention of claim 23 wherein said recipient member comprises at least two recipient member segments disposed adjacent to each other in a side-by-side, non-interwoven relation to define an incision therebetween, and said detachment means is disposed on the support member for permitting at least one of said recipient member segments to be detached from said separating member.

Claim 30

Independent Claim 119 words

A method for separating plasma from whole blood comprising: providing a blood test strip including a recipient member having a defined absorptive capacity, and a separating member, the recipient member and separating member being disposed in a generally co-planar, side by side relation, applying a quantity of blood to the separating member in excess of the combined absorptive capacities of the separating member and the recipient member, permitting the blood to flow in the separating member and recipient member, collecting a defined volume of plasma on the recipient member, retaining the cellular components of the blood in the separating member, detaching the recipient member from the blood test strip, and utilizing the plasma collected in a blood test procedure.

Claim 31

Independent Claim 119 words

A method for separating plasma from whole blood comprising: providing a blood test strip including a recipient member having a defined absorptive capacity, and a separating member, the recipient member and separating member being disposed in a generally co-planar, side by side relation, applying a quantity of blood to the separating member in excess of the combined absorptive capacities of the separating member and the recipient member, permitting the blood to flow in the separating member and recipient member, collecting a defined volume of plasma on the recipient member, retaining the cellular components of the blood in the separating member, detaching the recipient member from the blood test strip, and utilizing the plasma collected in a blood test procedure.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1992-11-27	1993-05-29	1993-11-28	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1996-11-27	1997-05-29	1997-11-28	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2000-11-27	2001-05-29	2001-11-28	$7700.00	Window Closed / Lapsed

Blood test strip

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