Medicament injector

• US 3,923,059 A
• Filed: 10/11/1973
• Issued: 12/02/1975
• Est. Priority Date: 07/01/1971
• Status: Expired due to Term

• Current Assignee: Robert W. Ogle
• Original Assignee: Robert W. Ogle
• Inventors: Ogle, Robert W.
• Primary Examiner(s): Yasko, John D.
• Application Number:
  US05/405,583
• Time in Patent Office: 782 Days
• Field of Search: 128/237,238,233,234,272,221,220,218N,214C,347,214D
• US Class Current: 604/413
• CPC Class Codes: A61J 1/201 having one piercing end
• CPC Class Codes: A61J 1/2013 having two piercing ends
• CPC Class Codes: A61J 1/2089 Containers or vials which are to be joined to each other in order to mix their contents combinations of vial and syringe for mixing their contents A61J1/2096
• CPC Class Codes: A61J 1/2096 Combination of a vial and a syringe for transferring or mixing their contents
• CPC Class Codes: A61M 3/00 Medical syringes, e.g. enemata; Irrigators A61M5/00 takes precedence; pistons A61M5/315
• CPC Class Codes: A61M 31/00 Devices for introducing or retaining media, e.g. remedies, in cavities of the body A61M25/00 takes precedence ; introducing or retaining ophthalmic products into the ocular cavities A61F9/0008
• CPC Class Codes: A61M 5/2429 by telescoping of ampoules or carpules with the syringe body
• CPC Class Codes: A61M 5/3291 Shafts with additional lateral openings

Abstract

This patent describes a novel medicament injector device for the addition of concentrated medication to rubber stoppered solution containers comprising: a cylindrical vial having an open end and a closed end, a resilient plug adapted to be inserted at least partially through the open end of the vial; the plug forming a seal engagement with the walls of the vial with a press fit; a cylindrical member having one closed end, the cylindrical member holding a needle extending inwardly into the cylindrical member and having a sharpened inner end; the cylindrical member having a tip extending outwardly from the closed end. The tip has an elongated member of generally uniform circular cross-section and a central fluid passage extending substantially the length thereof. The tip terminates in a pointed end in a zone of reduced cross-section, the zone having at least one fluid passage which communicates with the central fluid passage and forms an oblique angle with respect thereto. Interlocking means on the cylindrical member and cooperating interlocking means on the plug are provided whereby upon interlocking of the plug with the cylindrical member, the vial is first held in an assembled but non-operating position and upon further interlocking of the plug with the cylindrical member, the plug is adapted to be pierced by the needle and the needle communicated with the vial without the application of substantial axial pressure on the plug and the plug is locked securely to the cylindrical member to permit aspiration upon withdrawal of the vial or to permit expulsion of the contents of the vial into the solution container upon exertion of pressure on the vial. The pointed tip is adapted to pierce the stopper of the container without cutting loose pieces from the stopper and without the loss of any vacuum within the container.

Claims

1. A novel medicament injector device for the addition of concentrated medication to rubber stoppered solution containers comprising:

a cylindrical vial having an open end and a closed end, a resilient plug adapted to be inserted at least partially through said open end of said vial;

said plug forming a sealing engagement with the walls of said vial with a press fit;

a cylindrical member having one closed end, said cylindrical member holding a needle extending inwardly into said cylindrical member and having a sharpened inner end;

said cylindrical member having a tip extending outwardly from said closed end, said tip surrounding and extending from the lower end of said needle portion said tip being an elongated member of generally uniform circular cross-section and having a central fluid passage extending substantially the length of the tip, said tip terminating in a pointed end in a zone of reduced cross-section, said zone having at least one fluid passage which communicates with said central fluid passage and forms an oblique angle with respect thereto;

interlocking means on said cylindrical member and cooperating interlocking means on said plug, whereby upon interlocking of said plug with said cylindrical member said vial is first held in an assembled but non-operating position and upon further interlocking of said plug with said cylindrical member, said plug is adapted to be pierced by said needle and said needle communicated with said vial without the application of substantial axial pressure on said plug and said plug is locked securely to said cylindrical member to permit aspiration upon withdrawal of said vial or to permit expulsion of the contents of said vial into said solution container upon exertion of pressure on said vial, said pointed tip being adapted to pierce the stopper of said container without cutting loose pieces from the stopper and without the loss of any vacuum within said container.

2. The device of claim 1 wherein said zone has two fluid passages forming an acute angle with respect to each other, the pointed end being positioned between said passages and being symmetrically disposed around a line running longitudinally of said central fluid passage.

3. The device of claim 1 wherein each of said two fluid passages terminates at flat surfaces on opposite sides of said tip, the cross-section of said tip otherwise being round.

4. In combination, a novel medicament injector device comprising:

a cylindrical vial having an open end and a closed end, a resilient plug adapted to be inserted at least partially through said open end of said vial;

said plug forming a sealing engagement with the walls of said vial with a press fit;

a cylindrical member having one closed end, said cylindrical member holding a needle extending inwardly into said cylindrical member and having a sharpened inner end;

said cylindrical member having a tip extending outwardly from said closed end, said tip surrounding and extending from the lower end of said needle portion said tip being an elongated member of generally uniform circular cross-section and having a central fluid passage extending substantially the length of the tip, said tip terminating in a pointed end in a zone of reduced cross-section, said zone having at least one fluid passage which communicates with said central fluid passage and forms an oblique angle with respect thereto;

interlocking means on said cylindrical member and cooperating interlocking means on said plug, whereby upon interlocking of said plug with said cylindrical member said vial is first held in an assembled but non-operating position and upon further interlocking of said plug with said cylindrical member, said plug is adapted to be pierced by said needle and said needle communicated with said vial without the application of substantial axial pressure on said plug and said plug is locked securely to said cylindrical member to permit aspiration upon withdrawal of said vial or to permit expulsion of the contents of said vial into said solution container upon exertion of pressure on said vial, and a container of intravenous solution, said container having a sealing member at one end thereof, said tip piercing said sealing member whereby the contents of said vial are transferred to said container by the exertion of pressure on said vial.

5. The device of claim 4 wherein said zone has two fluid passages forming an acute angle with respect to each other, the pointed end being positioned between said passages and being symmetrically disposed around a line running longitudinally of said central fluid passage.

6. The device of claim 4 wherein each of said two fluid passages terminates at flat surfaces on opposite sides of said tip, the cross-section of said tip otherwise being round.