US3758006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aspirating syringe with grasping rings
Assignee: Becton Dickinson and Co
•
Filing: 1971-10-15
•
Granted: 1973-09-11
•
Expires: 1991-10-15
Abstract
Abstract A hypodermic syringe barrel has a delivery tip at one end and an axially movable plunger spaced within the barrel movable toward and away from the delivery tip. A grasping ring is connected to the barrel at the opposite end of the barrel from the delivery tip. A pair of axially movable grasping rings are oppositely spaced along the sides of the barrel. Each of the movable rings is connected to the plunger. The movable rings fit through guide slots in the barrel. When the movable rings are conveyed toward the end-mounted grasping ring, while the grasping ring is braced against motion, the syringe is aspirated.
Inventors
- 👤 L Gravlee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:46
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/3148; A61M5/3129; A61M5/3137
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
207 words
In a hypodermic syringe barrel having a delivery tip at one end and an axially movable plunger spaced within said barrel movable toward and away from the delivery tip for aspirating and ejecting fluids associated with the syringe barrel, the improvement by means of which the plunger is actuated which comprises: a. a first grasping means connected to the barrel at the other end and extending axially rearwardly therefrom; b. a pair of axially movable grasping means oppositely spaced along the sides of the barrel, each of the movable grasping means connected to the plunger and extending laterally therefrom, and c. a pair of longitudinal guide slots extending through the barrel and having a predetermined length to facilitate control of the volume in the barrel between the forward plunger end and the delivery tip, each guide slot having one of said movable grasping means extending therethrough, whereby said plunger is grasped with one hand with the thumb on the first grasping means and a pair of fingers on each of said pair of movable grasping means respectively, and is manipulated by closing the hand so that said plunger is moved away from said delivery tip by moving said pair of grasping means toward said first grasping means.
Claim 2
Dependent Claim
207 words
In a hypodermic syringe barrel having a delivery tip at one end and an axially movable plunger spaced within said barrel movable toward and away from the delivery tip for aspirating and ejecting fluids associated with the syringe barrel, the improvement by means of which the plunger is actuated which comprises: a. a first grasping means connected to the barrel at the other end and extending axially rearwardly therefrom; b. a pair of axially movable grasping means oppositely spaced along the sides of the barrel, each of the movable grasping means connected to the plunger and extending laterally therefrom, and c. a pair of longitudinal guide slots extending through the barrel and having a predetermined length to facilitate control of the volume in the barrel between the forward plunger end and the delivery tip, each guide slot having one of said movable grasping means extending therethrough, whereby said plunger is grasped with one hand with the thumb on the first grasping means and a pair of fingers on each of said pair of movable grasping means respectively, and is manipulated by closing the hand so that said plunger is moved away from said delivery tip by moving said pair of grasping means toward said first grasping means.
Claim 3
Dependent Claim
20 words
The invention in accordance with claim 1 in which said first grasping means and said movable grasping means are rings.
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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |