US4737151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Syringe injector
Assignee: Individual
•
Filing: 1986-07-25
•
Granted: 1988-04-12
•
Expires: 2006-07-25
Abstract
Abstract A syringe injector to hold a syringe that comprises a barrel and a plunger. The plunger includes a piston received in the barrel. The injector comprises a support frame with a cradle to receive the syringe barrel at one end of the support frame. The plunger is held and there is a lever pivotally attached to the frame. A connecting rod extends from the lever to the holding means. In use, movement of the lever moves the plunger of the syringe and affords mechanical advantage to the user.
Inventors
- 👤 John G. Clement
- 👤 David R. Harker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:35
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/007; Y; Y10; Y10S; Y10S128/00; Y10S128/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
180 words
A syringe injector to hold a syringe that comprises a barrel and a plunger, the plunger including a rubber piston seal received in the barrel, hubs adjacent one end of the barrel and a handle extending outwardly from the end of the plunger remote from the piston seal, the injector comprising; a support frame; a cradle to receive the syringe barrel at one end of the support frame and means to prevent movement of the syringe barrel longitudinally of the cradle; holding means to hold the plunger, including a recess to receive the handle of the plunger; a primary lever pivotally attached to the frame to pivot in a plane generally perpendicular to the plane of the cradle from a start position extending away from the frame to a finish position overlying the frame; a connecting rod extending from the lever to the holding means and longitudinally reciprocable with movement of the lever; whereby, in use, movement of the lever moves the connecting rod, the holding means and the plunger of the syringe and affords mechanical advantage to the user.
Claim 2
Dependent Claim
180 words
A syringe injector to hold a syringe that comprises a barrel and a plunger, the plunger including a rubber piston seal received in the barrel, hubs adjacent one end of the barrel and a handle extending outwardly from the end of the plunger remote from the piston seal, the injector comprising; a support frame; a cradle to receive the syringe barrel at one end of the support frame and means to prevent movement of the syringe barrel longitudinally of the cradle; holding means to hold the plunger, including a recess to receive the handle of the plunger; a primary lever pivotally attached to the frame to pivot in a plane generally perpendicular to the plane of the cradle from a start position extending away from the frame to a finish position overlying the frame; a connecting rod extending from the lever to the holding means and longitudinally reciprocable with movement of the lever; whereby, in use, movement of the lever moves the connecting rod, the holding means and the plunger of the syringe and affords mechanical advantage to the user.
Claim 3
Dependent Claim
36 words
An injector as claimed in claim 1 in which the support frame comprises first and second spaced end members, each formed with legs, the first end member being at said one end of the support frame.
Claim 4
Dependent Claim
29 words
An injector as claimed in claim 2 in which the legs are dimensioned so that on a level surface the frame is inclined downwardly towards the first end member.
Claim 5
Dependent Claim
21 words
An injector as claimed in claim 2 in which the frame includes longitudinal members joining the first and second end members.
Claim 6
Dependent Claim
18 words
An injector as claimed in claim 2 in which the cradle extends forwardly from the first end member.
Claim 7
Dependent Claim
30 words
An injector as claimed in claim 1 in which the means to prevent movement of the syringe barrel comprises a recess to engage the hubs formed on the syringe barrel.
Claim 8
Dependent Claim
31 words
An injector as claimed in claim 4 in which the holding means to hold the plunger comprises a slidable member mounted on, and reciprocable on, the longitudinal members of the frame.
Claim 9
Dependent Claim
24 words
An injector as claimed in claim 7 in which the slidable member includes a recess to receive the syringe handle formed on the plunger.
Claim 10
Dependent Claim
19 words
An injector as claimed in claim 6 in which the lever is pivotally mounted on the second support member.
Claim 11
Dependent Claim
21 words
An injector as claimed in claim 9 including lugs on the second support member to provide a fulcrum for the lever.
Claim 12
Dependent Claim
22 words
An injector as claimed in claim 1 in which the connecting rod is pivotally attached to the lever and the holding means.
References Cited (Backward Citations)
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US3578047A
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Cited
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Cited
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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) | 1991-04-12 | 1991-10-12 | 1992-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-12 | 1995-10-12 | 1996-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-12 | 1999-10-12 | 2000-04-12 | $7700.00 | Window Closed / Lapsed |