Syringe-to-syringe mixing systems and related apparatus and methods
First Claim
1. A syringe-to-syringe mixing system comprising:
- a first syringe barrel comprised of;
a hollow body including a continuous cylindrical wall defining an internal chamber for containing a first component, the hollow body having a proximal end and a distal dispensing end;
only a single orifice at the distal dispensing end of the hollow body through which the first component contained in the internal chamber can be dispensed; and
a rupturable membrane disposed at the distal dispensing end of the hollow body and which caps and seals off the single orifice until irreversible rupture of the rupturable membrane by application of sufficient pressure on the first component contained in the internal chamber so as to irreversibly rupture the rupturable membrane, wherein the rupturable membrane has a cross-sectional thickness that facilitates rupture of the rupturable membrane during use;
a first plunger slidably disposed within the hollow body of the first syringe barrel for applying pressure to a first component within the internal chamber;
a second syringe barrel having a distal dispensing end that is couplable to the distal dispensing end of the hollow body of the first syringe barrel; and
a second plunger slidably disposed within the second syringe barrel for applying pressure to a second component within the second internal chamber of the second syringe barrel.
1 Assignment
0 Petitions
Accused Products
Abstract
A hollow syringe barrel for use in syringe mixing systems for mixing a two-component composition. A hollow body of the syringe barrel includes a proximal end, a distal end, and continuous cylindrical wall defining an internal chamber for containing a first component. A rupturable membrane disposed at the distal end caps and seals off a single dispensing orifice. A second syringe barrel can be coupled to the distal end of the hollow syringe barrel to form a syringe-to-syringe mixing system. First and second plungers disposed within the hollow syringe barrel and second syringe barrel, respectively, are used to mix and cycle back and forth first and second components initially contained within the hollow syringe barrel and second syringe barrel. The two components are initially separated by the rupturable membrane, which is irreversibly ruptured by applying sufficient pressure to the first plunger within the hollow syringe barrel prior to mixing.
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Citations
28 Claims
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1. A syringe-to-syringe mixing system comprising:
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a first syringe barrel comprised of; a hollow body including a continuous cylindrical wall defining an internal chamber for containing a first component, the hollow body having a proximal end and a distal dispensing end; only a single orifice at the distal dispensing end of the hollow body through which the first component contained in the internal chamber can be dispensed; and a rupturable membrane disposed at the distal dispensing end of the hollow body and which caps and seals off the single orifice until irreversible rupture of the rupturable membrane by application of sufficient pressure on the first component contained in the internal chamber so as to irreversibly rupture the rupturable membrane, wherein the rupturable membrane has a cross-sectional thickness that facilitates rupture of the rupturable membrane during use; a first plunger slidably disposed within the hollow body of the first syringe barrel for applying pressure to a first component within the internal chamber; a second syringe barrel having a distal dispensing end that is couplable to the distal dispensing end of the hollow body of the first syringe barrel; and a second plunger slidably disposed within the second syringe barrel for applying pressure to a second component within the second internal chamber of the second syringe barrel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A syringe-in-syringe mixing system comprising:
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a first syringe barrel comprised of; a hollow body including a continuous cylindrical wall defining an internal chamber for containing a first component, the hollow body having a proximal end and a distal dispensing end; only a single orifice at the distal dispensing end of the hollow body through which the first component contained in the internal chamber can be dispensed; and a rupturable membrane disposed at the distal dispensing end of the hollow body and which caps and seals off the single orifice until irreversible rupture of the rupturable membrane by application of sufficient pressure on the first component contained in the internal chamber so as to irreversibly rupture the rupturable membrane, wherein the rupturable membrane has a cross-sectional thickness that facilitates rupture of the rupturable membrane during use; a plunger slidably disposed within the hollow body of the first syringe barrel for applying pressure to a first component within the internal chamber; a sealing plug disposed at the distal dispensing end of the hollow body of the first syringe barrel and which cooperates with the rupturable membrane to form a sealing plug-rupturable membrane body; and a second syringe barrel having a second internal chamber configured to slidably receive the hollow syringe barrel therein so that the sealing plug sealingly engages an interior wall of the second syringe barrel defining the second internal chamber, wherein the hollow syringe barrel is slidably received within the second internal chamber of the second syringe barrel and acts as a second plunger during use for applying pressure to a mixed composition contained within the second internal chamber of the second syringe barrel. - View Dependent Claims (18)
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19. A hollow syringe barrel for use within a syringe-to-syringe mixing system for mixing a two-part composition, the syringe barrel comprising:
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a hollow body including a continuous cylindrical wall defining an internal chamber for containing a first component, the hollow body having a proximal end and a distal dispensing end with only a single orifice through which a first component in the internal chamber can be dispensed; a rupturable membrane disposed at the distal dispensing end of the body so as to cap and seal off the single orifice until irreversible rupture of the rupturable membrane by application of sufficient pressure on a first component contained in the internal chamber so as to irreversibly rupture the rupturable membrane, wherein the rupturable membrane has a cross-sectional thickness to facilitate rupture of the rupturable membrane during use; and coupling means disposed at the distal dispensing end of the hollow body for coupling the syringe barrel to a distal dispensing end of another syringe barrel so as to allow for syringe-to-syringe mixing. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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27. A syringe-in-syringe mixing system for use in mixing a two-part dental composition comprising:
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a first plunger; a hollow inner plunger configured to slidably receive the first plunger therein in sealing engagement, the hollow inner plunger comprising; a hollow body including a continuous cylindrical wall defining a first internal chamber for containing a first component, the hollow body having a proximal end and a distal end terminating with a single dispensing orifice through which a first component can be dispensed; a sealing plug having at least one outwardly protruding circumferential sealing ridge for sealing against an inner wall of a hollow syringe barrel; and a rupturable membrane attached to the sealing plug and capping and sealing off the single orifice until irreversible rupture of the rupturable membrane by application of sufficient pressure on a first component contained in the first internal chamber so as to irreversibly rupture the rupturable membrane; and the hollow syringe barrel including an inner wall and a second internal chamber configured to contain therein a second component, the hollow syringe barrel being configured to slidably receive the hollow inner plunger therein in sealing engagement with the at least one circumferential sealing ridge of the sealing plug sealing against the inner wall of the syringe barrel defining the second internal chamber. - View Dependent Claims (28)
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Specification