IP Library › Granted Patent US 7,201,723
Granted Patent B2
US 7,201,723 · App. 10/809,725 · Granted Apr 10, 2007

Pulsating expression cap

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Quick Facts
Patent No.
US 7,201,723
App. No.
10/809,725
Granted
Apr 10, 2007
Kind
B2
Abstract

A body fluid sampling device includes an expression member placed around an incision in the skin of a user, a compression member to contact and traverse the expression member, and a housing configured to contact the skin near the incision. The expression member is configured to repeatedly move from a relaxed position over the incision to a contracted position over the incision. The expression member is at least partially resilient in order to repeatedly squeeze and/or compress the skin around the incision.

Claims (81)

1. A sampling device, comprising:

a lancet configured to form an incision in skin;

an expression member having a band positioned to contact skin that is deformable to squeeze skin around the incision;

wherein the band is moveable between a relaxed position around the incision in skin and a contracted position around the incision in skin;

a compression member configured to contact and rotate about the expression member wherein the band compresses from the relaxed position to the contracted position to express bodily fluid from the incision in skin;

a housing configured to contact the skin near the incision;

wherein at least a portion of the expression member is resilient in order to return to the relaxed position;

the expression member includes at least one expression lobe; and

the compression member includes at least one compression lobe configured to contact the at least one expression lobe to compress the skin.

2. A sampling device, comprising:

a lancet configured to form an incision in skin;

an expression member having a band positioned to contact skin that is deformable to squeeze skin around the incision;

wherein the band is moveable between a relaxed position around the incision in skin and a contracted position around the incision in skin;

a compression member configured to contact and rotate about the expression member wherein the band compresses from the relaxed position to the contracted position to express bodily fluid from the incision in skin;

a housing configured to contact the skin near the incision;

wherein at least a portion of the expression member is resilient in order to return to the relaxed position;

the expression member includes at least one expression lobe;

the compression member includes at least one compression lobe configured to contact the at least one expression lobe, and the compression lobe is configured to contact and to rotate about the at least one expression lobe to compress the band.

3. A sampling device, comprising:

a lancet configured to form an incision in skin;

an expression member having a band positioned to contact skin that is deformable to squeeze skin around the incision;

wherein the band is moveable between a relaxed position around the incision in skin and a contracted position around the incision in skin;

a compression member configured to contact and rotate about the expression member wherein the band compresses from the relaxed position to the contracted position to express bodily fluid from the incision in skin;

a housing configured to contact the skin near the incision;

wherein at least a portion of the expression member is resilient in order to return to the relaxed position; and

wherein the expression member includes a skin contacting portion configured to surround the band and wherein the skin contacting portion is moveable between a relaxed position around the incision in skin and a contracted position around the incision to express bodily fluid from the incision in skin.

4. A sampling device, comprising:

an expression member having a skin contacting portion that is moveable between a relaxed position around an incision in skin and a contracted position around the incision in skin to compress and squeeze the skin near the incision;

a compression member configured to contact the skin contacting portion of the expression member to move the skin contacting portion from the relaxed position to the contracted position;

a housing to contact the skin near the incision;

wherein at least a portion of the expression member is resilient in order to return to the relaxed position;

the expression member includes at least one nub; and

the compression member includes at least one bulge configured to contact and rotate about the at least one nub to compress the skin contacting portion.

5. A sampling device, comprising:

an expression member having a skin contacting portion that is moveable between a relaxed position around an incision in skin and a contracted position around the incision in skin to compress and squeeze the skin near the incision;

a compression member configured to contact the skin contacting portion of the expression member to move the skin contacting portion from the relaxed position to the contracted position;

a housing to contact the skin near the incision;

wherein at least a portion of the expression member is resilient in order to return to the relaxed position;

the expression member includes at least one nub;

the compression member includes at least one bulge configured to contact and rotate about the at least one nub to compress the skin contacting portion; and

wherein the nub is made of a non-resilient material.

6. A sampling device, comprising:

a lancet configured to form an incision in skin;

an expression member having a band positioned to contact skin that is deformable to squeeze skin around the incision;

wherein the band is moveable between a relaxed position around the incision in skin and a contracted position around the incision in skin;

a compression member configured to contact and rotate about the expression member wherein the band compresses from the relaxed position to the contracted position to express bodily fluid from the incision in skin;

a housing configured to contact the skin near the incision;

wherein at least a portion of the expression member is resilient in order to return to the relaxed position;

the expression member includes at least one expression lobe, the at least one expression lobe includes a plurality of expression lobes; and

the compression member includes at least one compression lobe configured to contact the at least one expression lobe, to compress the band the at least one compression lobe includes a plurality of compression lobes equal in number to the plurality of expression lobes.

7. A sampling device, comprising:

a lancet configured to form an incision in skin;

an expression member having a band positioned to contact skin that is deformable to squeeze skin around the incision;

wherein the band is moveable between a relaxed position around the incision in skin and a contracted position around the incision in skin;

a compression member configured to contact and rotate about the expression member wherein the band compresses from the relaxed position to the contracted position to express bodily fluid from the incision in skin;

a housing configured to contact the skin near the incision;

wherein at least a portion of the expression member is resilient in order to return to the relaxed position;

the expression member includes at least one expression lobe, the at least one expression lobe includes a plurality of expression lobes; and

the compression member includes at least one compression lobe configured to contact the at least one expression lobe, to compress the band the at least one compression lobe includes a plurality of compression lobes unequal in number to the plurality of expression lobes.

8. A sampling device, comprising:

a lancet configured to form an incision in skin;

an expression member having a band positioned to contact skin that is deformable to squeeze skin around the incision;

wherein the band is moveable between a relaxed position around the incision in skin and a contracted position around the incision in skin;

a compression member configured to contact and rotate about the expression member wherein the band compresses from the relaxed position to the contracted position to express bodily fluid from the incision in skin;

a housing configured to contact the skin near the incision;

wherein at least a portion of the expression member is resilient in order to return to the relaxed position;

the expression member includes at least one expression lobe;

the compression member includes at least one compression lobe configured to contact the at least one expression lobe;

the compression lobe is configured to contact and to rotate about the at least one expression lobe to compress the band;

wherein the band is compressed in a symmetrical pattern.

9. A sampling device, comprising;

a lancet configured to form an incision in skin;

an expression member having a band positioned to contact skin that is deformable to squeeze skin around the incision;

wherein the band is moveable between a relaxed position around the incision in skin and a contracted position around the incision in skin;

a compression member configured to contact and rotate about the expression member wherein the band compresses from the relaxed position to the contracted position to express bodily fluid from the incision in skin;

a housing configured to contact the skin near the incision;

wherein at least a portion of the expression member is resilient in order to return to the relaxed position;

the expression member includes at least one expression lobe;

the compression member includes at least one compression lobe configured to contact the at least one expression lobe;

the compression lobe is configured to contact and to rotate about the at least one expression lobe to compress the band;

wherein the band is compressed in an asymmetrical pattern.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2015
From: ROCHE DIAGNOSTICS OPERATIONS, INC.
To: ROCHE DIABETES CARE, INC.
Reel/Frame 036008/0670 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 25, 2004
From: CHAN, FRANK A.
To: ROCHE DIAGNOSTICS OPERATIONS, INC.
Reel/Frame 015159/0922 →