US3789830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable lancet
Assignee: SWEDISH HOSPITAL SUPPLY SHS AB
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Filing: 1971-09-22
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Granted: 1974-02-05
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Expires: 1991-09-22
Abstract
Abstract A disposable lancet used for piercing the tissue of a finger to obtain blood specimens. The lancet is designed to contain minimum material to achieve low material costs which still have the strength and rigidity to be completely functional. The lancet design permits multiple lancets to be punched from a strip of sheet steel to obtain economy in the manufacturing operation.
Inventors
- 👤 S Malmstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:22
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/02; B21D28/06; A; A61; A61B; A61B17/00; A61B17/32; A61B17/3209; A61B17/32093; A61B5/00; A61B5/15; A61B5/150007; A61B5/150015; A61B5/150022; A61B5/150206; A61B5/150259; A61B5/150274; A61B5/150282; A61B5/150374; A61B5/150381; A61B5/150412; A61B5/150427; A61B5/151; A61B5/15101; A61B5/15103; A61B5/15105; A61B5/15146; A61B5/150175; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/49794
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
111 words
A blood-letting lancet constructed from sheet metal comprising, a grip portion of a generally elongated shape, a piercing portion disposed at one end of the lancet provided with a sharp point, a lateral recess formed in the grip portion adjacent the end thereof opposite said pointed end a penetration limiting portion disposed between the grip portion and the piercing portion and integral therewith for restricting the penetration depth of the piercing portion, said penetration limiting portion having a substantially greater width than the adjacent grip portion, said penetration limiting portion being defined by at least one lateral projection having the same configuration as the lateral recess formed in the grip portion.
Claim 2
Dependent Claim
111 words
A blood-letting lancet constructed from sheet metal comprising, a grip portion of a generally elongated shape, a piercing portion disposed at one end of the lancet provided with a sharp point, a lateral recess formed in the grip portion adjacent the end thereof opposite said pointed end a penetration limiting portion disposed between the grip portion and the piercing portion and integral therewith for restricting the penetration depth of the piercing portion, said penetration limiting portion having a substantially greater width than the adjacent grip portion, said penetration limiting portion being defined by at least one lateral projection having the same configuration as the lateral recess formed in the grip portion.
Claim 3
Dependent Claim
31 words
The combination according to claim 1 wherein said grip portion includes recesses on opposite sides of the grip portion axis which are complementary to the configuration of said penetration limiting portion.
Claim 4
Dependent Claim
68 words
The combination according to claim 1 wherein said penetration limiting portion comprises a pair of sections projecting respectively, transversely from the longitudinal axis of said grip portion and are symmetrically disposed relative to said axis, and saId sections each having an edge on the piercing portion side of said penetration limiting portion which lies perpendicular to said axis for limiting the depth of penetration of said piercing portion.
Claim 5
Dependent Claim
20 words
The combination according to claim 1 wherein said penetration limiting portion is asymmetrically positioned on one side of said strip.
References Cited (Backward Citations)
US3060937A
Cited
US3517670A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |