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EP0315440A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

A dual-chambered mixing and dispensing vial

Assignee: Merck and Co Inc
•
Filing: 1988-11-02
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Granted: —
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Expires: 2008-11-02
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Abstract

Abstract A dual chambered vial is equiped with a dislodgeable stopper device (16) between the two chambers (9, 15), whereby components of a mixture may be maintained in separate chambers until comingling is desired. The stopper (16) is dislodged by means of a plunger (18) activated by depression of flexible walls (14) of one chamber.

Inventors

  • 👤 Paul Henault
  • 👤 Gilbert Lataix
  • 👤 Carleton H. Macartney
  • 👤 Ronald Saffron

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-30 16:23
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/32; B65D81/3205; B65D81/3211; B01; B01F; B01F33/00; B01F33/50; B01F33/501; B01F33/5011; B01F33/50111; B01F35/00; B01F35/30; B01F35/32; B01F35/32005; B01F35/3202; B01F35/32021; B01F35/71; B01F35/713; B01F35/7138; B01F35/716; B01F35/7161; B01F35/75; B01F35/754; B01F35/7546; B01L; B01L3/00; B01L3/02; B01L3/0241; B01L3/0272; B01F23/00; B01F23/40; B01F23/50; B01L2200/00; B01L2200/14; B01L2200/141; B01L2300/00; B01L2300/04; B01L2300/041; B01L2300/042; B01L2300/044; B01L2300/08; B01L2300/0861; B01L2300/0867; B01L2300/12; B01L2300/123; B01L2400/00; B01L2400/04; B01L2400/0475; B01L2400/0478; B01L2400/0481; B01L2400/0487; B01L2400/06; B01L2400/0633

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 60 words
A dual chamber mixture dispensing device comprising: first and second chambers separated from each other by a common wall having an orifice between said two compartments; a plugging means for selectively sealing said orifice; a depressible stem situated within said device for dislodging said plugging means from said orifice; a means for depressing the depressible a mixture from said device.
Claim 2
Dependent Claim 60 words
A dual chamber mixture dispensing device comprising: first and second chambers separated from each other by a common wall having an orifice between said two compartments; a plugging means for selectively sealing said orifice; a depressible stem situated within said device for dislodging said plugging means from said orifice; a means for depressing the depressible a mixture from said device.
Claim 3
Dependent Claim 14 words
The dispensing device of claim 1, wherein the dispensing means comprises a droplet nozzle.
Claim 4
Dependent Claim 19 words
The dispensing device of claim 1, wherein the dispensing means comprises a flexible septum penetrable by a hypodermic needle.
Claim 5
Dependent Claim 23 words
The dispensing device of claim 1, wherein the cross-sectional area of the depressible stem is less that the cross-sectional area of said orifice.
Claim 6
Dependent Claim 29 words
The dispensing device of claim 1, wherein the walls of the second chamber are selectively depressible toward first chamber to actuate the depressible stem to dislodge the plugging means.
Claim 7
Dependent Claim 24 words
The despensing device of claim 5 wherein the walls of the second chamber define a plurality of flexible bellows depressible toward said first chamber.
Claim 8
Dependent Claim 23 words
The dispensing device of claim 5, wherein the walls of the second chamber define a flexible bell-shaped base depressible toward said first chamber.
Claim 9
Dependent Claim 26 words
The dispensing device of claim 5, further comprising a removeable base cap means securely fitable over said second compartment to prevent non-intentional depression of said walls.
Claim 10
Dependent Claim 191 words
A dual chamber mixture dispensing device for selectively maintaining mixture components separate until mixing and dispensing is desired, comprising A. a mixture dispensing means; B. a first chamber for storing one or more of the mixture components, having substantially rigid walls, one of said walls being a common wall to a second chamber, said common wall having a orifice open to said second chamber; C. a second chamber for storing one or more of the mixture components adjacent to said first chamber extending from said common wall, the other walls and base to said second chamber being selectively depressible toward said first chamber; D. a plugging means for selectively sealing said orifice having a first position sealing said orifice and a second position dislodge from said orifice; and E. a depressible stem located within said second chamber when said plugging means is in its first position, and situated proximately between said plugging means and flexible base of said second chamber so that depression of said flexible base walls toward the first chamber will cause the depressible stem to dislodge said plugging means from said orifice permitting commingling of the mixture components.
Claim 11
Dependent Claim 191 words
A dual chamber mixture dispensing device for selectively maintaining mixture components separate until mixing and dispensing is desired, comprising A. a mixture dispensing means; B. a first chamber for storing one or more of the mixture components, having substantially rigid walls, one of said walls being a common wall to a second chamber, said common wall having a orifice open to said second chamber; C. a second chamber for storing one or more of the mixture components adjacent to said first chamber extending from said common wall, the other walls and base to said second chamber being selectively depressible toward said first chamber; D. a plugging means for selectively sealing said orifice having a first position sealing said orifice and a second position dislodge from said orifice; and E. a depressible stem located within said second chamber when said plugging means is in its first position, and situated proximately between said plugging means and flexible base of said second chamber so that depression of said flexible base walls toward the first chamber will cause the depressible stem to dislodge said plugging means from said orifice permitting commingling of the mixture components.
Claim 12
Dependent Claim 185 words
A dual chamber mixture dispensing device for selectively maintaining mixture components, wherein at least one component is liquid, separate until mixing and dispensing is desired, comprising a mixture dispensing means, including a rupturable septum; a first chamber for storing one or more of the mixture components, having substantially rigid walls, and a common wall to a second chamber, said common wall having an orifice open to said second chamber; a second chamber for storing one or more of the mixture components adjacent to said first chamber extending from said common wall, the other walls and base to said second chamber being selectively depressible toward said first chamber; a plugging means to selectively seal said orifice having a first position sealing said orifice and a second position dislodged from said orifice; and a depressible stem adjacent to said plugging means when in its first, plugging position, and extending into said second chamber sufficiently proximate to the depressible base of said second chamber so that depression of said depressible base toward the first chamber will cause the depressible stem to dislodge the plugging means from said orifice.
Claim 13
Dependent Claim 185 words
A dual chamber mixture dispensing device for selectively maintaining mixture components, wherein at least one component is liquid, separate until mixing and dispensing is desired, comprising a mixture dispensing means, including a rupturable septum; a first chamber for storing one or more of the mixture components, having substantially rigid walls, and a common wall to a second chamber, said common wall having an orifice open to said second chamber; a second chamber for storing one or more of the mixture components adjacent to said first chamber extending from said common wall, the other walls and base to said second chamber being selectively depressible toward said first chamber; a plugging means to selectively seal said orifice having a first position sealing said orifice and a second position dislodged from said orifice; and a depressible stem adjacent to said plugging means when in its first, plugging position, and extending into said second chamber sufficiently proximate to the depressible base of said second chamber so that depression of said depressible base toward the first chamber will cause the depressible stem to dislodge the plugging means from said orifice.

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