Syringe devices and methods for mixing and administering medication

• US 7,776,011 B2
• Filed: 05/21/2007
• Issued: 08/17/2010
• Est. Priority Date: 10/13/2004
• Status: Active Grant

• Current Assignee: Hyprotek, Inc.
• Original Assignee: Hyprotek, Inc.
• Inventors: Tennican, Patrick O., Phipps, L. Myles, Michaelsen, Russell A.
• Primary Examiner(s): Lucchesi; Nicholas D
• Assistant Examiner(s): FLICK, JASON E
• Application Number:
  US11/751,431
• Publication Number:
  US 20070255203A1
• Time in Patent Office: 1,184 Days
• Field of Search: 604/88
• US Class Current: 604/88
• CPC Class Codes: A61J 1/201 having one piercing end
• CPC Class Codes: A61J 1/2062 with directional valves
• CPC Class Codes: A61J 1/2065 having aligning and guiding means
• CPC Class Codes: A61J 1/2086 for fluid filtration
• CPC Class Codes: A61J 1/2096 Combination of a vial and a syringe for transferring or mixing their contents
• CPC Class Codes: A61M 2005/3117 Means preventing contamination of the medicament compartment of a syringe
• CPC Class Codes: A61M 2005/3128 Incorporating one-way valves, e.g. pressure-relief or non-return valves
• CPC Class Codes: A61M 2205/582 by tactile feedback
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 5/002 Packages specially adapted therefor, e.g. for syringes or needles, kits for diabetics needle protection, e.g. caps, A61M5/3202; for sharps A61B50/3001
• CPC Class Codes: A61M 5/204 connected to external reservoirs for multiple refilling
• CPC Class Codes: A61M 5/284 comprising means for injection of two or more media, e.g. by mixing
• CPC Class Codes: A61M 5/31596 comprising means for injection of two or more media, e.g. by mixing

Abstract

The invention includes a device having a chamber within a syringe. A fluid passageway extends through a syringe piston. A valve is associated with the passageway controlling fluid passage through the piston. The invention includes a piercing structure having a head segment and a body portion, with a channel through the body portion and through at least one surface of the head without passing through the tip. In another aspect the invention encompasses a method of preparing an agent for administration to an individual. A first component is provided within a syringe and a second component is provided within a vial. A closed valve is associated with a fluid passageway between the vial and the syringe barrel through a piston. Valve repositioning allows fluid passage and sliding of the piston joins the first and second components. Repeated sliding of the piston mixes the components to produce the medication agent.

Claims

1. A system for preparing a medicant comprising:

a needleless syringe having an opening through a male extension fitting at a first end and a piston insertable within a second end;

a container having a first medicant component disposed therein;

an adaptor attachable to the first end of the syringe by a port consisting of a female fitting which matingly receives the male fitting of the syringe, and comprising a housing configured to receive the container;

a piercing structure within the housing configured to pierce a closure of the container, wherein the piercing structure comprises;

a head segment having a widest portion and an opposing tip, a beveled front surface and a back surface that joins with the front surface at opposing cutting edges;

a base portion having a first diameter;

a stem portion extending between the base portion and the head portion having a second diameter that is smaller than the first diameter and shorter than the widest portion of the head segment; and

a fluid passageway extending radially centrally through the base portion, through the stem portion and through the front surface of the head portion at a position where two bevel surfaces meet and at a position other than at the tip;

a valve integral with the adaptor, the valve being configured to control fluid passage through the opening at the first end of the syringe; and

a second medicant component disposed within the syringe.

2. The system of claim 1 wherein the valve is a three-way valve configured to controllably establish fluid communication between the container and the syringe.

3. The system of claim 1 wherein the adaptor comprises:

a first segment extending from the position of the valve to a first fitting attachable to the first end of the syringe;

a second segment extending from the position of the valve; and

a third segment extending from the position of the valve, the third segment comprising a housing configured the receive the container, wherein the third segment is orthogonal relative to the first segment.

4. The system of claim 1 wherein the adaptor is attachable to the first end of the syringe by a locking luer fitting.