Systems and Methods for Mixing Syringe Valve Assemblies
AssigneeTolmar International Limited
InventorsJames Sherman, Casey Dean, Carl Hart, John Bingham, Hossam Aboudagher
Life of this patent
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Abstract
A syringe mixing system is provided for housing and mixing contents between at least two syringes. In some embodiments, a syringe coupler is provided that receives first and second syringes and includes a valve member that is convertible between a closed position and an open position. Retention systems for preventing or inhibiting removal of at least one syringe after use are also provided.
Claims20
A method of administering a Gonadotropin Releasing Hormone (GnRH) agonist to a subject for the treatment of prostate cancer or central precocious puberty (CPP), the method comprising:
- (i) providing a syringe-to-syringe mixing system containing the Gonadotropin Releasing Hormone (GnRH) agonist, wherein the syringe-to-syringe mixing system comprises:
- a first syringe and a second syringe, each of the first syringe and the second syringe having a respective outlet, wherein the first syringe contains a liquid formulation component and the second syringe contains the Gonadotropin Releasing Hormone (GnRH) agonist;
- and
- a valve assembly comprising a displaceable member, a guide member, a displaceable seal, and a selectively rotatable member received within the guide member, wherein the outlets of the first and second syringes are coupled to the valve assembly, wherein the displaceable seal comprises a flow port extending through the displaceable seal, wherein the selectively rotatable member has a first end that receives a portion of the first syringe and an opposed second end that has at least one angled surface that forms a ramped or frustoconical shape, wherein the selectively rotatable member has a central channel that extends through and between the first and second ends of the selectively rotatable member, wherein the displaceable member is coupled to the displaceable seal and slidable relative to the guide member between a first position and a second position,
- wherein in the first position of the displaceable member, the flow port of the displaceable seal is offset from the outlet of at least one of the first syringe or the second syringe,
- wherein in the second position of the displaceable member, the flow port of the displaceable seal is aligned with the outlets of both the first syringe and the second syringe and the second end of the selectively rotatable member is surrounded by the displaceable seal;
- and
- (ii) administering the GnRH agonist to the subject using the syringe-to-syringe mixing system by:
- (a) positioning the displaceable member in the second position to form a fluid flow path extending through the flow port of the displaceable seal and between the outlet of the first syringe and the outlet of the second syringe;
- (b) mixing, through the fluid flow path, the liquid formulation component with the GnRH agonist to form a reconstituted pharmaceutical composition;
- and
- (c) administering the reconstituted pharmaceutical composition containing the GnRH agonist to the subject via subcutaneous injection, wherein administering the reconstituted pharmaceutical composition via subcutaneous injection comprises:
- with the reconstituted pharmaceutical composition received within the second syringe, disconnecting the second syringe from the valve assembly;
- and
- subcutaneously delivering, using the second syringe, the reconstituted pharmaceutical composition to the subject.
Dependencies are inferred from the claim text.