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US5599323A
Expired / Lapsed
US
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Syringe system
Assignee: Novo Nordisk AS
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Filing: 1995-10-30
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Granted: 1997-02-04
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Expires: 2015-10-30
Abstract
Abstract An insulin injection system comprises a pen shaped syringe with a cartridge containing insulin, and an injection needle. The needle is a G30 needle and the insulin is a type which may freely flow through a G 30 needle. When the insulin is the type comprising suspended crystals the maximal dimension of any crystal is 15 μm.
Inventors
- 👤 Frits F. Bonnichsen
- 👤 Peter N. J.o slashed.rgensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:54
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61K; A61K38/00; A61K38/16; A61K38/17; A61K38/22; A61K38/28; A61M5/46
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
71 words
A needle assembly comprising: (a) a needle hub having a base and a standard insulin needle fitting for removably mounting said needle assembly on a pen-type insulin syringe having a standard mounting and which accepts cartridges containing only insulin types that may flow freely through a G30 needle; and (b) a G30 needle secured in said base and having first and second needle portions extending from said base in opposite directions.
Claim 2
Dependent Claim
71 words
A needle assembly comprising: (a) a needle hub having a base and a standard insulin needle fitting for removably mounting said needle assembly on a pen-type insulin syringe having a standard mounting and which accepts cartridges containing only insulin types that may flow freely through a G30 needle; and (b) a G30 needle secured in said base and having first and second needle portions extending from said base in opposite directions.
Claim 3
Dependent Claim
59 words
A needle assembly according to claim 1, wherein said standard fitting includes an annular sleeve extending from said base such that said sleeve surrounds said first needle portion concentrically and is spaced therefrom, and wherein said sleeve has a threaded interior by which it may be screwed onto a standard, externally threaded, hub-receiving part of a pen-type insulin syringe.
Claim 4
Dependent Claim
25 words
A needle assembly according to claim 2, and wherein said second needle portion has a predetermined length appropriate for injecting insulin into a human patient.
Claim 5
Dependent Claim
74 words
A needle assembly according to claim 3, wherein said base further comprises a central protrusion which extends from said base for a predetermined distance along said second needle portion and embeds said second needle portion along the said distance, and wherein said second needle portion further comprises an exposed end which projects axially from said central protrusion and which has a length corresponding to the desired depth of needle insertion into a human patient.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-02-04 | 2000-08-05 | 2001-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-04 | 2004-08-05 | 2005-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-04 | 2008-08-05 | 2009-02-04 | $7700.00 | Window Closed / Lapsed |