US4943281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Syringe
Assignee: Individual
•
Filing: 1989-01-18
•
Granted: 1990-07-24
•
Expires: 2009-01-18
Abstract
Abstract A syringe with a cannula and a cylindrical tube and a cannula guard, wherein the cannula guard has a protective bow which is displaceable inwardly towards the cylindrical tube to retract the cannula guard, and a recess of said bow embracing the cannula.
Inventors
- 👤 Lutz Kothe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:53
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/3205; A61M5/321; A61M5/3243; A61M5/3275; A61M5/3245; A61M2005/3246
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
59 words
A syringe which comprises: a cannula having a cannula tip; a cylindrical tube connected to said cannula at a location spaced from said cannula tip; a cannula guard for said cannula; a protective bow of said cannula guard being displaceable inwardly towards the cylindrical tube to retract the cannula guard; and a recess of said bow embracing the cannula.
Claim 2
Dependent Claim
59 words
A syringe which comprises: a cannula having a cannula tip; a cylindrical tube connected to said cannula at a location spaced from said cannula tip; a cannula guard for said cannula; a protective bow of said cannula guard being displaceable inwardly towards the cylindrical tube to retract the cannula guard; and a recess of said bow embracing the cannula.
Claim 3
Dependent Claim
13 words
A syringe according to claim 1 wherein said recess embraces the cannula tip.
Claim 4
Dependent Claim
27 words
A syringe according to claim 1 including a ring in connection with the protective bow which embraces the cylindrical tube and is displaceable towards the cylindrical tube.
Claim 5
Dependent Claim
27 words
A syringe according to claim 1 including bows in connection with the protective bow having one end thereof fixed in position with respect to the cylindrical tube.
Claim 6
Dependent Claim
19 words
A syringe according to claim 4 wherein said bows are in connection with the protective bow via a ring.
Claim 7
Dependent Claim
31 words
A syringe according to claim 4 wherein the cylindrical tube has a longitudinal axis and wherein the bows consist of flexible material and can be pressed in toward said longitudinal axis.
Claim 8
Dependent Claim
12 words
A syringe according to claim 6 including a disk interconnecting said bows.
Claim 9
Dependent Claim
17 words
A syringe according to claim 7 wherein the disk is between the cannula and the cylindrical tube.
Claim 10
Dependent Claim
54 words
A syringe according to claim 8 wherein the cannula is fitted to the cylindrical tube via an attachment on a nipple, wherein the nipple is situated between the attachment and the cylindrical tube and passes through a central bore in the disk and the disk supports itself against the attachment and the cylindrical tube.
Claim 11
Dependent Claim
21 words
A syringe according to claim 9 wherein the cylindrical tube includes a cover and the disk supports itself against said cover.
Claim 12
Dependent Claim
21 words
A syringe according to claim 7 wherein the disk is designed as a blocking device with respect to the protective bow.
Claim 13
Dependent Claim
15 words
A syringe according to claim 11 wherein the protective bow forms undercuts toward the disk.
Claim 14
Dependent Claim
22 words
A syringe according to claim 12 including frame strips of said protective bow which in an initial position rest on said disk.
Claim 15
Dependent Claim
12 words
A syringe according to claim 13 wherein said disk has segment cutouts.
Claim 16
Dependent Claim
20 words
A syringe according to claim 14 wherein the disk has a central axis and is rotatable about its central axis.
Claim 17
Dependent Claim
36 words
A syringe according to claim 15 wherein the segment cutouts are arranged such that after one rotation they receive the frame strips, which then slide in the segment cutouts in a direction towards the cylindrical tube.
Claim 18
Dependent Claim
25 words
A syringe according to claim 3 including a further guide ring between the protective bow and the ring connected to the ring via side strips.
Claim 19
Dependent Claim
14 words
A syringe according to claim 4 including gripping eyelets integrally attached to the bows.
Claim 20
Dependent Claim
22 words
A syringe according to claim 1 wherein the cannula guard includes an adaptor which has an annular collar for receiving an ampoule.
Claim 21
Dependent Claim
21 words
A syringe according to claim 19 wherein the annular collar is integrally attached to the protective bow and surrounds the recess.
Claim 22
Dependent Claim
40 words
A syringe according to claim 19 wherein the protective bow has an apex and wherein the adaptor includes a cap part which is adapted to the apex of the protective bow and to which the annular collar is integrally attached.
Claim 23
Dependent Claim
21 words
A syringe according to claim 21 wherein the cap part has holding means for fixing the adaptor on the protective bow.
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) | 1993-07-23 | 1994-01-22 | 1994-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-23 | 1998-01-22 | 1998-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-23 | 2002-01-22 | 2002-07-24 | $7700.00 | Window Closed / Lapsed |