US5520653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Syringe adapter for front-loading medical injector
Assignee: Bayer Healthcare LLC
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Filing: 1995-09-01
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Granted: 1996-05-28
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Expires: 2015-09-01
Abstract
Abstract The adapters of the present invention are used for releasably attaching syringes of various types having a body, a plunger reciprocally mounted therein, and a flange near the rear end of the syringe body, to a front-loading injector head. In a preferred embodiment, the adapter includes a syringe carrier having a front end, a rear end, and syringe retaining channel located between the carrier front and rear ends for engaging at least a portion of the syringe flange; mounting flanges near the carrier rear end for releasably mounting the carrier in a desired position relative to the front wall of the injector head; a follower reciprocally mounted within the carrier having a front end engagable with the syringe plunger when the syringe is installed in the carrier; and a drive head opening communicating with a pair of drive head slots positioned proximate to the rear end of the follower for releasably mounting the follower in a desired position relative to the drive head of the injector head.
Inventors
- 👤 David M. Reilly
- 👤 Joseph B. Havrilla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:34
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/142; A61M5/145; A61M5/1452; A61M5/14546; A61M5/1456; A61M5/14566; A61M5/1458; Y; Y10; Y10S; Y10S128/00; Y10S128/01
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
196 words
An adapter for releasably attaching a syringe to a front-loading injector head, wherein the syringe includes a body, and a plunger reciprocally mounted therein, and wherein the injector head includes a front wall, an opening formed therein, and a drive member having a drive head reciprocally mounted within the injector head and extendible through the opening, the adapter comprising: a syringe carrier having a front end, a rear end, and syringe retaining means located between the carrier front end and rear end for engaging at least a portion of the syringe to retain the syringe within at least a portion of the carrier during an injection procedure; first readily releasable mounting means positioned proximate to the carrier rear end for mounting the carrier in a desired position relative to the front wall of the injector head; a follower reciprocally mounted within the carrier and including a front end and a rear end, the front end engagable with the syringe plunger when the syringe is installed in the carrier; and second readily releasable mounting means positioned proximate to the rear end of the follower for mounting the follower in a desired position relative to the drive head.
Claim 2
Dependent Claim
196 words
An adapter for releasably attaching a syringe to a front-loading injector head, wherein the syringe includes a body, and a plunger reciprocally mounted therein, and wherein the injector head includes a front wall, an opening formed therein, and a drive member having a drive head reciprocally mounted within the injector head and extendible through the opening, the adapter comprising: a syringe carrier having a front end, a rear end, and syringe retaining means located between the carrier front end and rear end for engaging at least a portion of the syringe to retain the syringe within at least a portion of the carrier during an injection procedure; first readily releasable mounting means positioned proximate to the carrier rear end for mounting the carrier in a desired position relative to the front wall of the injector head; a follower reciprocally mounted within the carrier and including a front end and a rear end, the front end engagable with the syringe plunger when the syringe is installed in the carrier; and second readily releasable mounting means positioned proximate to the rear end of the follower for mounting the follower in a desired position relative to the drive head.
Claim 3
Dependent Claim
18 words
The adapter of claim 1 wherein the syringe retaining means is positioned proximate to the carrier front end.
Claim 4
Dependent Claim
18 words
The adapter of claim 1 wherein the syringe retaining means is positioned proximate to the carrier rear end.
Claim 5
Dependent Claim
32 words
The adapter of claim 1 wherein the syringe retaining means includes a channel for receiving at least a portion of a flange disposed proximate to a rear end of the syringe body.
Claim 6
Dependent Claim
35 words
The adapter of claim 1 wherein the carrier further comprises: a front retaining wall positioned proximate to the carrier front end for engaging at least a portion of a front tapered section of the syringe.
Claim 7
Dependent Claim
52 words
The adapter of claim 1 wherein the first readily releasable mounting means is engagable with a first readily releasable receiving means positioned proximate the injector head opening to form a first interlocking mechanism which is activated and released upon rotation of the carrier relative to the front wall of the injector head.
Claim 8
Dependent Claim
69 words
The adapter of claim 1 wherein the first readily releasable mounting means includes at least one mounting flange extending radially outward proximate to the rear end of the carrier, the mounting flange releasably engagable with at least one receiving flange extending radially inward proximate to the opening in the front wall of the injector head upon rotation of the carrier relative to the front wall of the injector head.
Claim 9
Dependent Claim
29 words
The adapter of claim 7 wherein the mounting flange includes indication means for providing information identifying at least one of the syringe and adapter loaded onto the injector head.
Claim 10
Dependent Claim
29 words
The adapter of claim 1 wherein the follower includes means for releasably receiving at least a portion of a plunger extension extending from a rear end of the plunger.
Claim 11
Dependent Claim
63 words
The adapter of claim 9 wherein the plunger extension includes a plunger rod attached at a first end to the plunger and having a flange disposed proximate to a second end of the plunger rod; and the means for releasably receiving at least a portion of the plunger extension includes means for releasably receiving at least a portion of the plunger rod flange.
Claim 12
Dependent Claim
32 words
The adapter of claim 10 wherein the means for releasably receiving at least a portion of the plunger rod flange includes a channel formed proximate to the front end of the follower.
Claim 13
Dependent Claim
58 words
The adapter of claim 9 wherein the plunger extension includes a stem attached at a first end to the plunger and knob attached to a second end of the stem; and the means for releasably receiving at least a portion of the plunger extension includes means for releasably receiving at least a portion of the stem and knob.
Claim 14
Dependent Claim
48 words
The adapter of claim 12 wherein the means for releasably receiving at least a portion of the stem and knob includes a channel formed proximate to the front end of the follower, the channel radially extending from an edge of the follower to a center of the follower.
Claim 15
Dependent Claim
44 words
The adapter of claim 1 wherein the second readily releasable mounting means is engagable with the injector drive head to form a second interlocking mechanism which is activated and released upon rotation of the carrier relative to the front wall of the injector head.
Claim 16
Dependent Claim
54 words
The adapter of claim 1 wherein the second readily releasable mounting means includes a drive head opening and a pair of drive head slots communicating therewith, the drive head opening and drive head slots releasably engagable with the drive head upon rotation of the carrier relative to the front wall of the injector head.
Claim 17
Dependent Claim
195 words
A syringe system for use with a front-loading injector head wherein the injector head includes a front wall and an opening formed therein, and a drive member having a drive head reciprocally mounted within the injector head and extendible through the opening, the system comprising: a syringe including a body, and a plunger reciprocally mounted therein; and an adapter for receiving the syringe and including a carrier having a front end, a rear end, and syringe retaining means located between the carrier front and rear ends for engaging at least a portion of the syringe to retain the syringe within the carrier during an injection procedure; first readily releasable mounting means positioned proximate to the carrier rear end for mounting the carrier in a desired position relative to the front wall of the injector housing; a follower reciprocally mounted within the carrier and including a front end and a rear end, the front end engagable with the syringe plunger when the syringe is installed in the carrier; and second readily releasable mounting means positioned proximate to the rear end of the follower for mounting the follower in a desired position relative to the drive head.
Claim 18
Dependent Claim
195 words
A syringe system for use with a front-loading injector head wherein the injector head includes a front wall and an opening formed therein, and a drive member having a drive head reciprocally mounted within the injector head and extendible through the opening, the system comprising: a syringe including a body, and a plunger reciprocally mounted therein; and an adapter for receiving the syringe and including a carrier having a front end, a rear end, and syringe retaining means located between the carrier front and rear ends for engaging at least a portion of the syringe to retain the syringe within the carrier during an injection procedure; first readily releasable mounting means positioned proximate to the carrier rear end for mounting the carrier in a desired position relative to the front wall of the injector housing; a follower reciprocally mounted within the carrier and including a front end and a rear end, the front end engagable with the syringe plunger when the syringe is installed in the carrier; and second readily releasable mounting means positioned proximate to the rear end of the follower for mounting the follower in a desired position relative to the drive head.
Claim 19
Dependent Claim
53 words
The syringe system of claim 16 wherein the first readily releasable mounting means is engagable with a first readily releasable receiving means positioned proximate the injector head opening to form a first interlocking mechanism which is activated and released upon rotation of the carrier relative to the front wall of the injector head.
Claim 20
Dependent Claim
30 words
The syringe system of claim 16 wherein the follower includes means for releasably receiving at least a portion of a plunger extension extending from a rear end of the plunger.
Claim 21
Dependent Claim
32 words
The syringe system of claim 18 wherein the means for releasably receiving at least a portion of the plunger extension includes a channel formed proximate to the front end of the follower.
Claim 22
Dependent Claim
45 words
The syringe system of claim 16 wherein the second readily releasable mounting means is engagable with the injector drive head to form a second interlocking mechanism which is activated and released upon rotation of the carrier relative to the front wall of the injector head.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-05-28 | 1999-11-27 | 2000-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-05-28 | 2003-11-27 | 2004-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-05-28 | 2007-11-27 | 2008-05-28 | $7700.00 | Window Closed / Lapsed |