US5984906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Syringe system
Assignee: Novo Nordisk AS
•
Filing: 1997-02-03
•
Granted: 1999-11-16
•
Expires: 2017-02-03
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 Frydendal Bonnichsen
- 👤 Peter Nissen J.o slashed.rgensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:03
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: 16
Claim 1
Independent Claim
46 words
An insulin injection system comprising a pen shaped syringe comprising a cartridge with insulin and an injection needle, wherein the needle is thinner than a G-29 needle and the cartridge contains an insulin type which may freely flow through a needle thinner than a G-29 needle.
Claim 2
Dependent Claim
46 words
An insulin injection system comprising a pen shaped syringe comprising a cartridge with insulin and an injection needle, wherein the needle is thinner than a G-29 needle and the cartridge contains an insulin type which may freely flow through a needle thinner than a G-29 needle.
Claim 3
Dependent Claim
23 words
An insulin injection system according the claim 1, wherein the insulin type in the cartridge has a maximal crystals size of 15 μm.
Claim 4
Dependent Claim
20 words
An insulin injection system according to claim 1, wherein the pen shaped syringe is a disposable device prefilled with insulin.
Claim 5
Dependent Claim
34 words
An insulin injection system according to claim 1, wherein the pen shaped syringe is a durable device designed to receive only cartridges containing insulin which may pass freely through a thinner than G-29 needle.
Claim 6
Dependent Claim
24 words
An insulin injection system according to claim 1, wherein the needle has attaching means for cooperation with attaching means on the pen shaped syringe.
Claim 7
Dependent Claim
30 words
An insulin injection system according to claim 5, wherein the needle attaching means is a needle hub having a thread cooperating with a corresponding thread on the pen shaped syringe.
Claim 8
Dependent Claim
24 words
An insulin injection system according to claim 6, wherein the needle hub has a central protrusion covering part of the length of the needle.
Claim 9
Dependent Claim
21 words
An insulin injection system according to claim 7, wherein the length of the injection part of the needle is 8-12 mm.
Claim 10
Dependent Claim
20 words
An insulin injection system according to claim 2, wherein the pen shaped syringe is a disposable device prefilled with insulin.
Claim 11
Dependent Claim
34 words
An insulin injection system according to claim 2, wherein the pen shaped syringe is a durable device designed to receive only cartridges containing insulin which may pass freely through a thinner than G-29 needle.
Claim 12
Dependent Claim
75 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 thinner than G-29 needle; and (b) a thinner than G-29 needle secured in said base and having first and second needle portions extending from said base in opposite directions.
Claim 13
Dependent Claim
75 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 thinner than G-29 needle; and (b) a thinner than G-29 needle secured in said base and having first and second needle portions extending from said base in opposite directions.
Claim 14
Dependent Claim
59 words
A needle assembly according to claim 11, 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 15
Dependent Claim
25 words
A needle assembly according to claim 12, and wherein said second needle portion has a predetermined length appropriate for injecting insulin into a human patient.
Claim 16
Dependent Claim
74 words
A needle assembly according to claim 13, 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)
US4313439A
Cited
US4413760A
Cited
US4552561A
Cited
US4592745A
Cited
US4883472A
Cited
US5114406A
Cited
EP0279583A2
Cited
US5017190A
Cited
US4745068A
Cited
US5092842A
Cited
US5042977A
Cited
US4865591A
Cited
US4936833A
Cited
US4976701A
Cited
US5112317A
Cited
US4973318A
Cited
US5104380A
Cited
US4894054A
Cited
US5232459A
Cited
US5308340A
Cited
US5304152A
Cited
US5295976A
Cited
US5226896A
Cited
US5462535A
Cited
US5462535B1
Cited
WO1993007922A1
Cited
US5626566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-11-15 | 2003-05-17 | 2003-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-15 | 2007-05-17 | 2007-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-11-15 | 2011-05-17 | 2011-11-16 | $7700.00 | Window Closed / Lapsed |