Fluid delivery device and methods

• US 8,672,883 B2
• Filed: 07/11/2012
• Issued: 03/18/2014
• Est. Priority Date: 07/11/2011
• Status: Expired due to Fees

• Current Assignee: Medpro Safety Products, Inc.
• Original Assignee: Medpro Safety Products, Inc.
• Inventors: Denning, C. Garyen, Mosler, Theodore J., Foshee, David L., Hall, Robert C., Corson, Andrew J.
• Primary Examiner(s): BERDICHEVSKY, AARTI
• Application Number:
  US13/546,454
• Publication Number:
  US 20130018311A1
• Time in Patent Office: 615 Days
• Field of Search: 604/110
• US Class Current: 604/110
• CPC Class Codes: A61M 2005/1787 Syringes for sequential delivery of fluids, e.g. first medicament and then flushing liquid
• CPC Class Codes: A61M 2005/2407 from the rear
• CPC Class Codes: A61M 2005/247 with fixed or steady piercing means, e.g. piercing under movement of ampoule
• CPC Class Codes: A61M 2005/3101 Leak prevention means for proximal end of syringes, i.e. syringe end opposite to needle mounting end
• CPC Class Codes: A61M 2005/3104 Caps for syringes without needle
• CPC Class Codes: A61M 2005/3114 Filling or refilling
• CPC Class Codes: A61M 2039/2486 Guided stem, e.g. reciprocating stopper
• CPC Class Codes: A61M 2205/585 having magnification means, e.g. magnifying glasses
• CPC Class Codes: A61M 5/2429 by telescoping of ampoules or carpules with the syringe body
• CPC Class Codes: A61M 5/2448 comprising means for injection of two or more media, e.g. by mixing
• CPC Class Codes: A61M 5/2466 by piercing without internal pressure increase A61M5/2429 takes precedence
• CPC Class Codes: A61M 5/3134 characterised by constructional features of the distal end, i.e. end closest to the tip of the needle cannula
• CPC Class Codes: A61M 5/3137 Specially designed finger grip means, e.g. for easy manipulation of the syringe rod
• CPC Class Codes: A61M 5/31515 Connection of piston with piston rod
• CPC Class Codes: A61M 5/31525 Dosing burettes, pipettes B01L3/02
• CPC Class Codes: A61M 5/31568 Means keeping track of the total dose administered, e.g. since the cartridge was inserted
• CPC Class Codes: A61M 5/3158 performed by axially moving actuator operated by user, e.g. an injection button
• CPC Class Codes: A61M 5/347 rotatable, e.g. bayonet or screw A61M5/344 takes precedence
• CPC Class Codes: A61M 5/50 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile retractable needles or needle protectors with means for preventing re-use A61M5/321
• CPC Class Codes: A61M 5/502 for blocking the piston

Abstract

A fluid delivery device includes a cartridge and a syringe. The cartridge includes a housing and a stopper positioned within a fluid chamber defined by the housing. The syringe includes a needle, and an outer body and an inner core which cooperate to receive at least a portion of the housing. When the fluid delivery device is in a first configuration, at least a portion of the cartridge is positioned within the syringe and the stopper is connected to the inner core. In a second configuration, a lumen defined by the needle is in fluid communication with the fluid chamber. The inner core and stopper are movable distally relative to the outer body and needle as the fluid delivery device is transitioned from the first to the second configuration. In a third configuration, the cartridge and syringe cooperate to disable the fluid delivery device.

Claims

1. A fluid delivery device comprising:

a cartridge comprising a housing and a stopper, the housing defining a fluid chamber, the stopper being positioned within the fluid chamber and comprising a proximal surface; and

a syringe comprising an outer body, an inner core, and a needle, the outer body and the inner core cooperating to define a cavity configured to receive at least a portion of the housing of the cartridge, the needle defining a lumen and comprising a proximal tip;

wherein

when the fluid delivery device is in a first configuration, at least a portion of the cartridge is positioned within the syringe, the stopper of the cartridge is connected to the inner core, and the proximal tip of the needle is positioned distal of the proximal surface of the stopper;

when the fluid delivery device is in a second configuration, the proximal tip of the needle extends through the proximal surface of the stopper such that the lumen defined by the needle is in fluid communication with the fluid chamber, wherein the inner core and the stopper are movable distally relative to the outer body and the needle as the fluid delivery device is transitioned from the first configuration to the second configuration; and

when the fluid delivery device is in a third configuration, the cartridge and the syringe cooperate to prevent relative axial movement between the cartridge and the syringe such that the fluid delivery device is disabled.

2. The fluid delivery device of claim 1, wherein:

the inner core of the syringe comprises a distal end, the distal end of the inner core defining an annular notch and comprising a proximal surface;

the outer body of the syringe comprises at least one flexible tab;

when the fluid delivery device is in the first configuration, the at least one flexible tab engages the annular notch; and

when the fluid delivery device is in each of the second and third configurations, the at least one flexible tab is disengaged from the annular notch and is engaged with the proximal surface of the distal end of the inner core.

3. The fluid delivery device of claim 1, wherein:

the housing of the cartridge comprises a generally cylindrical portion having an inner surface;

the syringe further comprises a plurality of circumferentially spaced flexible guides formed at the proximal end of the inner core; and

the flexible guides are slidably engaged with the inner surface of the housing.

4. The fluid delivery device of claim 1, wherein:

the outer body of the syringe comprises an annular ledge;

the inner core of the syringe comprises a plurality of flexible positioning members;

when the fluid delivery device is in the first configuration, the flexible positioning members of the inner core engage the annular ledge of the outer body; and

the housing of the cartridge comprises a distal end which compresses the flexible positioning members as the fluid delivery device is transitioned from the first configuration to the second configuration, such that the flexible positioning members are disengaged from the annular ledge thereby permitting the inner core and the stopper to move distally relative to the outer body and the needle.

5. The fluid delivery device of claim 1, wherein:

the fluid delivery device provides a first audible indication as the fluid delivery device is configured in the second configuration; and

the fluid delivery device provides a second audible indication as the fluid delivery device is configured in the third configuration, the second audible indication providing an indication to a user of the fluid delivery device that fluid delivery is complete and the fluid delivery device is disabled.

6. The fluid delivery device of claim 1, wherein:

the cartridge further comprises a proximal button and a collar, the collar securing the proximal button to the housing;

the outer body comprises a proximal collar; and

when the fluid delivery device is in the third configuration, the cartridge is inserted completely within the syringe and the proximal collar of the outer body of the syringe surrounds the collar and the proximal button of the cartridge to disable the fluid delivery device.

7. The fluid delivery device of claim 1, wherein:

the outer body of the syringe comprises a plurality of circumferentially spaced retaining fingers; and

when fluid delivery device is in the third configuration, at least some of the retaining fingers engage the cartridge to disable the fluid delivery device.

8. The fluid delivery device of claim 7, wherein:

the cartridge further comprises a proximal button and a collar, the collar comprising a plurality of circumferentially spaced tabs;

the collar secures the proximal button to the housing; and

at least some of the retaining fingers of the outer body of the syringe engage respective ones of the tabs of the collar of the cartridge when the fluid delivery device is in the third configuration.

9. The fluid delivery device of claim 1, wherein:

the syringe further comprises a barb, the barb being integrally formed with the inner core as a unitary structure, the barb and the inner core cooperating to define a lumen;

the barb is connected to the stopper when the fluid delivery device is in each of the first, second and third configurations; and

when the fluid delivery device is in the first configuration, the proximal tip of the needle is positioned within the lumen defined by the barb and the inner core.

10. The fluid delivery device of claim 9, wherein:

the stopper defines a recess; and

the barb is positioned at least partially within the recess when the fluid delivery device is in each of the first, second and third configurations.

11. The fluid delivery device of claim 1, wherein:

the syringe further comprises a male luer connection, the male luer connection being integral with the outer body and defining a lumen; and

the lumen defined by the needle is in fluid communication with the lumen defined by the male luer connection when the fluid delivery device is in each of the first, second and third configurations.

12. The fluid delivery device of claim 11, wherein:

the stopper comprises a first stopper;

the cartridge further comprises a second stopper, the second stopper being fixed in position within the fluid chamber;

the second stopper is spaced proximally from the first stopper when the fluid delivery device is in each of the first and second configurations; and

the second stopper is in contacting engagement with the first stopper when the fluid delivery device is in the third configuration.

13. The fluid delivery device of claim 12, wherein:

the housing is movable distally within the cavity defined by the outer body and the inner core, and the second stopper is movable distally with the housing, relative to each of the outer body, the inner core, the needle and the first stopper, as the fluid delivery device is transitioned from the second configuration to the third configuration, such that fluid is expelled from the fluid cavity through the lumen defined by the needle and the lumen defined by the male luer connection.

14. A fluid delivery device comprising:

a cartridge comprising a housing and a stopper, the housing defining a fluid chamber, the stopper being positioned within the fluid chamber and comprising a proximal surface; and

a syringe comprising an outer body, an inner core, a barb, and a needle, the outer body and the inner core cooperating to define a cavity configured to receive at least a portion of the housing of the cartridge, the inner core being integrally formed with the barb as a unitary structure, the inner core and the barb cooperating to define a first lumen, the needle defining a second lumen and comprising a proximal tip;

wherein

when the fluid delivery device is in a first configuration, at least a portion of the cartridge is positioned within the syringe, the barb of the syringe is connected to the stopper of the cartridge, and the proximal tip of the needle is positioned within the first lumen defined by the inner core and the barb;

when the fluid delivery device is in a second configuration, the proximal tip of the needle extends beyond the barb and through the proximal surface of the stopper such that the second lumen defined by the needle is in fluid communication with the fluid chamber, wherein the inner core, the barb, and the stopper are movable distally relative to the outer body and the needle as the fluid delivery device is transitioned from the first configuration to the second configuration;

when the fluid delivery device is in a third configuration, the cartridge and the syringe cooperate to prevent relative axial movement between the cartridge and the syringe such that the fluid delivery device is disabled.

15. The fluid delivery device of claim 14, wherein:

the outer body of the syringe comprises a plurality of circumferentially spaced retaining fingers; and

when fluid delivery device is in the third configuration, at least some of the retaining fingers engage the cartridge to disable the fluid delivery device.

16. The fluid delivery device of claim 14, wherein:

the cartridge further comprises a proximal button and a collar, the collar securing the proximal button to the housing;

the outer body comprises a proximal collar; and

when the fluid delivery device is in the third configuration, the cartridge is inserted completely within the syringe and the proximal collar of the outer body of the syringe surrounds the collar and the proximal button of the cartridge to disable the fluid delivery device.

17. The fluid delivery device of claim 14, wherein:

the syringe further comprises a male luer connection, the male luer connection being integral with the outer body and defining a third lumen; and

the first lumen defined by the needle is in fluid communication with the third lumen defined by the male luer connection when the fluid delivery device is in each of the first, second and third configurations.

18. The fluid delivery device of claim 14, wherein:

the fluid delivery device provides a first audible indication as the fluid delivery device is configured in the second configuration; and

the fluid delivery device provides a second audible indication as the fluid delivery device is configured in the third configuration, the second audible indication providing an indication to a user of the fluid delivery device that fluid delivery is complete and the fluid delivery device is disabled.

19. A fluid delivery device comprising:

a cartridge comprising a housing and a stopper, the housing defining a fluid chamber, the stopper being positioned within the fluid chamber and comprising a proximal surface; and

a syringe comprising an outer body, an inner core, a barb, a needle, and a male luer connection, the outer body and the inner core cooperating to define a cavity configured to receive at least a portion of the housing of the cartridge, the inner core being integrally formed with the barb as a unitary structure, the inner core and the barb cooperating to define a first lumen, the needle defining a second lumen and comprising a proximal tip, the male luer connection being integral with the outer body and defining a third lumen;

wherein

the outer body of the syringe comprises a plurality of circumferentially spaced retaining fingers and at least one flexible tab;

the inner core of the syringe comprises a distal end, the distal end of the inner core defining an annular notch and comprising a proximal surface;

when the fluid delivery device is in a first configuration, at least a portion of the cartridge is positioned within the syringe, the barb of the syringe is connected to the stopper of the cartridge, the at least one flexible tab of the outer body engages the annular notch defined by the inner core, and the proximal tip of the needle is positioned within the first lumen defined by the inner core and the barb and is distal of the proximal surface of the stopper;

when the fluid delivery device is in a second configuration, the proximal tip of the needle extends beyond the barb and through the proximal surface of the stopper such that the second lumen defined by the needle is in fluid communication with the fluid chamber, wherein the inner core, the barb, and the stopper are movable distally relative to the outer body and the needle as the fluid delivery device is transitioned from the first configuration to the second configuration;

when the fluid delivery device is in a third configuration, at least some of the retaining fingers of the outer body of the syringe engage the cartridge to prevent relative axial movement between the cartridge and the syringe such that the fluid delivery device is disabled;

the at least one flexible tab of the outer body is disengaged from the annular notch defined by the inner core when the fluid delivery device is in each of the second and third configurations; and

the second lumen defined by the needle is in fluid communication with the third lumen defined by the male luer connection when the fluid delivery device is in each of the first, second and third configurations.

20. The fluid delivery device of claim 19, wherein:

the fluid delivery device provides a first audible indication as the fluid delivery device is configured in the second configuration; and

the fluid delivery device provides a second audible indication as the fluid delivery device is configured in the third configuration, the second audible indication providing an indication to a user of the fluid delivery device that fluid delivery is complete and the fluid delivery device is disabled.