US5505212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood sampler
Assignee: Novo Nordisk AS
•
Filing: 1994-12-14
•
Granted: 1996-04-09
•
Expires: 2014-12-14
Abstract
Abstract A blood sampler comprises a small chamber having a stiletto mounted air-tightly through a flexible top wall with a pointed end of the stiletto positioned inside the chamber opposite an opening in the bottom part of the chamber. The sampler is designed to be mounted in a tool which compresses the chamber by pressing the flexible top wall against the bottom of the chamber. Further, the tool has means for imparting an impact on a blunt outer end of the stiletto to drive the stiletto further through the top wall to make its sharp end protrude through the opening in the bottom part into the skin to which the sampler may be attached by an adhesive. When the sampler is ejected from the tool, it regains its original shape, providing in the chamber a vacuum for sucking blood from the perforated skin into this chamber.
Inventors
- 👤 Troels Keljmann
- 👤 Peter Klitgaard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:51
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/15; A61B5/157; A61B5/150007; A61B5/150015; A61B5/150022; A61B5/150053; A61B5/150061; A61B5/150099; A61B5/150206; A61B5/150259; A61B5/150343; A61B5/150374; A61B5/150381; A61B5/150412; A61B5/151; A61B5/15186; A61B5/15188; A61B5/15192; A61B5/15194
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
134 words
A blood sampler comprising a chamber having flexible top wall with an inner and an outer side, a bottom part with an inner and an outer side whereof the outer side forms a plane surface and a bottom part includes an opening, a stiletto having a blunt end and a pointed end, which stiletto slidably is mounted in an air tight relationship with the top wall and wherein the stiletto is driven through this top wall when an impact is imparted on the blunt end of this stiletto and the stiletto is mounted so that the pointed end does not project far enough from the inner side of the top wall to pass through the opening in the bottom part when the top wall is pressed against the inner side of the bottom part.
Claim 2
Dependent Claim
134 words
A blood sampler comprising a chamber having flexible top wall with an inner and an outer side, a bottom part with an inner and an outer side whereof the outer side forms a plane surface and a bottom part includes an opening, a stiletto having a blunt end and a pointed end, which stiletto slidably is mounted in an air tight relationship with the top wall and wherein the stiletto is driven through this top wall when an impact is imparted on the blunt end of this stiletto and the stiletto is mounted so that the pointed end does not project far enough from the inner side of the top wall to pass through the opening in the bottom part when the top wall is pressed against the inner side of the bottom part.
Claim 3
Dependent Claim
26 words
A blood sampler according to claim 1, wherein the stiletto is shaped as a hypodermic needle having a bore an upper end of which is closed.
Claim 4
Dependent Claim
22 words
A blood sampler according to claim 1, wherein an adhesive is provided on a part of the plane surface around the opening.
Claim 5
Dependent Claim
24 words
A blood sampler according to claim 3, wherein the chamber has at its bottom elongated non-adhesive strips extending from opposite sides of the chamber.
Claim 6
Dependent Claim
32 words
A blood sampler according to claim 4, wherein a plaster congruent with one of the elongated strips has an end surrounding the opening and being embedded in the adhesive surrounding the opening.
Claim 7
Dependent Claim
39 words
A blood sampler according to claim 5, wherein a protective strip covers the plaster and is bonded to the adhesive by a force less than the force by which the adhesive is bonded to the bottom of the chamber.
Claim 8
Dependent Claim
15 words
A blood sampler according to claim 1, wherein measuring means are mounted in the chamber.
Claim 9
Dependent Claim
32 words
A blood sampler according to claim 7, wherein the measuring means are a sensor transforming a parameter to be measured into an electric signal, which is led to terminals outside the chamber.
Claim 10
Dependent Claim
22 words
A blood sampler according to claim 8, wherein the measuring means are an indicator at the inner side of a transparent wall.
References Cited (Backward Citations)
US1960889A
Cited
WO1985004089A1
Cited
EP0164148A1
Cited
DE3515420A1
Cited
US5029583A
Cited
WO1988006427A1
Cited
US5014718A
Cited
US5070886A
Cited
US5054499A
Cited
WO1992002175A1
Cited
US5036861A
Cited
US5231993A
Cited
US5217480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-04-09 | 1999-10-09 | 2000-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-09 | 2003-10-09 | 2004-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-09 | 2007-10-09 | 2008-04-09 | $7700.00 | Window Closed / Lapsed |