US3714943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medicament injectors
Assignee: Individual
•
Filing: 1970-12-01
•
Granted: 1973-02-06
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Expires: 1990-12-01
Abstract
Abstract The specification and drawings disclose two embodiments of medicament injectors of the type commonly referred to as ''''velocity injectors.'''' Both embodiments provide means by which the quantity of medicament can be varied. Each embodiment also has a single valve assembly which controls filling, cleaning, and firing. An important aspect of one embodiment is the use of a rotatable multiple dosage supply housing which can be sequentially indexed to bring medicament ampules into proper relationship with the valve assembly. In addition to the features noted above, the second embodiment discloses an injector which automatically injects when pressed against the patient.
Inventors
- 👤 H Yanof
- 👤 B Pansky
- 👤 J Poff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:21
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/30; A61M5/31; A61M5/315; A61M5/31533; A61M5/31545; A61M5/31548; A61M5/3155; A61M5/31551; A61M5/002; A61M2005/005; A61M2205/00; A61M2205/60; A61M2205/6063; A61M2205/6081; A61M5/001; A61M5/1782; A61M5/19; A61M5/20; A61M5/2053; A61M5/24; A61M5/2448
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
169 words
A velocity type medicament injector comprising: a first body portion including a medicament receiving chamber having at least one orifice through which medicament can be ejected, said chamber including at least one movable wall portion through which pressure can be applied to medicament in said chamber to cause it to be ejected through the orifice at a velocity sufficient to enter tissue without use of a needle; a second body portion connected with said first body portion and including housing means carrying a plurality of fluid containers and at least one propellant gas cartridge; passage means including valve means connected between the housing means and the first body portion to controllably supply fluid and pressurizing gas to the chamber on opposite sides of the movable wall; and, indexing means for permitting movement of at least that portion of the housing means which carries said plurality of fluid containers relative to the first body portion to bring selected ones of said fluid containers into flow relationship with said passage means.
Claim 2
Dependent Claim
169 words
A velocity type medicament injector comprising: a first body portion including a medicament receiving chamber having at least one orifice through which medicament can be ejected, said chamber including at least one movable wall portion through which pressure can be applied to medicament in said chamber to cause it to be ejected through the orifice at a velocity sufficient to enter tissue without use of a needle; a second body portion connected with said first body portion and including housing means carrying a plurality of fluid containers and at least one propellant gas cartridge; passage means including valve means connected between the housing means and the first body portion to controllably supply fluid and pressurizing gas to the chamber on opposite sides of the movable wall; and, indexing means for permitting movement of at least that portion of the housing means which carries said plurality of fluid containers relative to the first body portion to bring selected ones of said fluid containers into flow relationship with said passage means.
Claim 3
Dependent Claim
169 words
A velocity type medicament injector comprising: a first body portion including a medicament receiving chamber having at least one orifice through which medicament can be ejected, said chamber including at least one movable wall portion through which pressure can be applied to medicament in said chamber to cause it to be ejected through the orifice at a velocity sufficient to enter tissue without use of a needle; a second body portion connected with said first body portion and including housing means carrying a plurality of fluid containers and at least one propellant gas cartridge; passage means including valve means connected between the housing means and the first body portion to controllably supply fluid and pressurizing gas to the chamber on opposite sides of the movable wall; and, indexing means for permitting movement of at least that portion of the housing means which carries said plurality of fluid containers relative to the first body portion to bring selected ones of said fluid containers into flow relationship with said passage means.
Claim 4
Dependent Claim
169 words
A velocity type medicament injector comprising: a first body portion including a medicament receiving chamber having at least one orifice through which medicament can be ejected, said chamber including at least one movable wall portion through which pressure can be applied to medicament in said chamber to cause it to be ejected through the orifice at a velocity sufficient to enter tissue without use of a needle; a second body portion connected with said first body portion and including housing means carrying a plurality of fluid containers and at least one propellant gas cartridge; passage means including valve means connected between the housing means and the first body portion to controllably supply fluid and pressurizing gas to the chamber on opposite sides of the movable wall; and, indexing means for permitting movement of at least that portion of the housing means which carries said plurality of fluid containers relative to the first body portion to bring selected ones of said fluid containers into flow relationship with said passage means.
Claim 5
Dependent Claim
19 words
The injector as defined in claim 1 wherein said housing means is mounted for rotation about a fixed axis.
Claim 6
Dependent Claim
36 words
The injector as defined in claim 1 wherein at least one of said containers contains a cleaning solution which can be indexed into alignment with the passage means for cleaning at least the medicament receiving chamber.
Claim 7
Dependent Claim
27 words
The injector as defined in claim 1 wherein said orifice includes means for permitting its diameter and number of orifices as well as length to be varied.
Claim 8
Dependent Claim
30 words
The injector as defined in claim 1 wherein said movable wall comprises a piston slidable in said medicament chamber and dividing said medicament chamber into first and second chamber portions.
Claim 9
Dependent Claim
24 words
The injector as defined in claim 1 wherein said valve means is carried in Said first body portion and comprises a rotatable valve member.
Claim 10
Dependent Claim
52 words
The injector as defined in claim 1 wherein said movable wall means comprises a piston in said medicament chamber and wherein said passage means includes a first passage for supplying pressurized gas to one side of said piston and a second passage for supplying medicament to the opposite side of said piston.
Claim 11
Dependent Claim
26 words
The injector as defined in claim 1 wherein said medicament chamber includes means for adjusting the amount of medicament which can be held in said chamber.
Claim 12
Dependent Claim
26 words
The injector as defined in claim 1 wherein the means for adjusting the amount of medicament comprises means for limiting movement of said movable wall portion.
Claim 13
Dependent Claim
23 words
The injector as defined in claim 1 wherein said carrier is mounted for rotation about an axis and longitudinal movement along said axis.
Claim 14
Dependent Claim
27 words
The injector as defined in claim 1 wherein said housing means includes openings in which said containers are received, said openings including means for opening said containers.
Claim 15
Dependent Claim
29 words
The injector as defined in claim 1 wherein said movable wall includes a piston slidable in said medicament chamber and including means for limiting the movement of said piston.
Claim 16
Dependent Claim
22 words
The injector as defined in claim 1 wherein said housing means includes means for indicating the number of unused containers carried therein.
Claim 17
Dependent Claim
20 words
The injector as defined in claim 1 wherein said orifice is defined by a removable end wall on said chamber.
Claim 18
Dependent Claim
27 words
The injector as described in claim 7 wherein said valve means comprises a single valve element controlling flow through between said first and said second passage portions.
Claim 19
Dependent Claim
18 words
The injector as described in claim 7 wherein means are provided for bleeding gas from said medicament chamber.
Claim 20
Dependent Claim
128 words
A velocity type medicament injector including a first housing adapted to hold medicament and a propellant gas; a second housing carried by said first housing and movable relative thereto, said second housing including a medicament chamber having a movable wall portion and an outlet orifice through which medicament can be ejected; passageway means for supplying medicament from said first housing to said medicament chamber, said passageway means further including a gas passageway extending through the second housing for supplying pressurized gas from said first housing to a position behind the movable wall portion; and, means associated with said second housing to prevent gas from flowing through said gas passageway except upon movement of the second housing relative to the first housing in a direction toward the outlet orifice.
Claim 21
Dependent Claim
128 words
A velocity type medicament injector including a first housing adapted to hold medicament and a propellant gas; a second housing carried by said first housing and movable relative thereto, said second housing including a medicament chamber having a movable wall portion and an outlet orifice through which medicament can be ejected; passageway means for supplying medicament from said first housing to said medicament chamber, said passageway means further including a gas passageway extending through the second housing for supplying pressurized gas from said first housing to a position behind the movable wall portion; and, means associated with said second housing to prevent gas from flowing through said gas passageway except upon movement of the second housing relative to the first housing in a direction toward the outlet orifice.
Claim 22
Dependent Claim
22 words
The injector as defined in claim 17 wherein said second housing is carried in said first housing and is slidable relative thereto.
Claim 23
Dependent Claim
43 words
The injector as defined in claim 17 wherein said second housing is slidable in said first housing and wherein said means to prevent pressurizing gas from flowing through the passageway comprises cooperating valve surfaces formed in said first and said second housing portions.
Claim 24
Dependent Claim
28 words
The injector as defined in claim 17 including biasing means for continually biasing said second housing to a position wherein gas is prevented from flowing through said passageway.
Claim 25
Dependent Claim
26 words
The injector as defined in claim 17 wherein said medicament chamber includes means for adjusting the amount of medicament which can be held in said chamber.
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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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |