PALM ACTIVATED DRUG DELIVERY DEVICE

• US 20110092915A1
• Filed: 10/15/2010
• Published: 04/21/2011
• Est. Priority Date: 10/16/2009
• Status: Active Grant

• Current Assignee: Janssen Biotech, Inc. (Johnson & Johnson)
• Original Assignee: Centocor Co.
• Inventors: Wang, Jingli, Glencross, James, Olson, Lorin P., Foley, Nicholas, Krulevitch, Peter, Zhao, Mingqi
• Granted Patent: US 9,216,256 B2
• Time in Patent Office: Days
• US Class Current: 604/198
• CPC Class Codes: A61M 2005/2026 Semi-automatic, e.g. user activated piston is assisted by additional source of energy
• CPC Class Codes: A61M 2005/208 Release is possible only when device is pushed against the skin, e.g. using a trigger which is blocked or inactive when the device is not pushed against the skin
• CPC Class Codes: A61M 2005/3123 having air entrapping or venting means, e.g. purging channels in pistons
• CPC Class Codes: A61M 2005/3125 specific display means, e.g. to indicate dose setting
• CPC Class Codes: A61M 2005/3126 Specific display means related to dosing
• CPC Class Codes: A61M 2005/3247 Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/582 by tactile feedback
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 2205/584 having a color code
• CPC Class Codes: A61M 2205/586 Ergonomic details therefor, e.g. specific ergonomics for left or right-handed users
• CPC Class Codes: A61M 5/20 Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically A61M5/142 , A61M5/46 take precedence; hypodermic projectiles F42B12/54
• CPC Class Codes: A61M 5/2033 Spring-loaded one-shot injectors with or without automatic needle insertion multishot dosing syringes A61M5/31525, needle insertion only A61M5/3287
• CPC Class Codes: A61M 5/2046 Media being expelled from injector by gas generation, e.g. explosive charge
• CPC Class Codes: A61M 5/2053 Media being expelled from injector by pressurised fluid or vacuum for infusion A61M5/145, A61M5/155
• CPC Class Codes: A61M 5/3129 Syringe barrels A61M5/3205 and A61M5/50 take precedence
• CPC Class Codes: A61M 5/315 Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
• CPC Class Codes: A61M 5/31501 Means for blocking or restricting the movement of the rod or piston A61M5/5013 takes precedence
• CPC Class Codes: A61M 5/31511 Piston or piston-rod constructions, e.g. connection of piston with piston-rod A61M5/5066 takes precedence
• CPC Class Codes: A61M 5/3157 Means providing feedback signals when administration is completed A61M5/20 takes precedence
• CPC Class Codes: A61M 5/3202 : Devices for protection of the needle before use, e.g. caps A61M5/50 takes precedence; for infusion spikes A61M5/1626; protectors for sharps A61B50/3001
• CPC Class Codes: A61M 5/3204 : Needle cap remover, i.e. devices to dislodge protection cover from needle or needle hub, e.g. deshielding devices
• CPC Class Codes: A61M 5/321 : Means for protection against accidental injuries by used needles
• CPC Class Codes: A61M 5/3243 : being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel devices for protecting guide needles in combination with catheters A61M25/0612
• CPC Class Codes: A61M 5/326 : Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user
• CPC Class Codes: A61M 5/3287 : Accessories for bringing the needle into the body; Automatic needle insertion A61M5/20, A61M5/31525 take 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 5/5086 : for indicating if defective, used, tampered with or unsterile

Abstract

Disclosed is a device for the parenteral delivery of a medication, such as a drug. The device includes upper and lower housings in which the upper housing is configured to move relative to the lower housing as a result of application of an external force to permit the user of the device to control the rate at which the drug is administered.

Claims

1. A device for administering medication, comprising:

a lower housing having a bottom surface and a syringe containing a medication therein;

a middle housing comprising a body;

an upper housing comprising a cap and a plunger rod attached to the upper housing, the upper housing being moveably attached to the middle housing;

wherein when substantially all of the medication is delivered, the upper housing substantially completely covers the lower housing body.

2. The device of claim 1, wherein the lower housing further comprises a needle guard, wherein the needle guard moves upwardly to expose a needle when the lower housing bottom surface is pressed against a skin surface.

3. The device of claim 2, wherein the needle guard further comprises a needle guard return capable of extending the needle guard over the needle when the device bottom is removed from a skin surface.

4. The device of claim 1, wherein the lower housing further comprises a first surface at its proximal end, which first surface is complementary to and mates with a second surface that comprises the distal end of the upper housing when delivery of the medication is substantially complete.

5. The device of claim 1, wherein the lower housing further comprises at least one window therein through which the distal end of the syringe is visible.

6. The device of claim 1, further comprising an assist drive capable of applying a downward force on the upper housing.

7. The device of claim 1, wherein the upper housing further comprises a cylindrical sleeve therein and fixedly attached thereto, wherein the distal portion of the cylindrical sleeve is housed within the middle housing, the distal portion including an assist drive.

8. The device of claim 1, wherein the lower housing further comprises a clicker to indicate when medication delivery is substantially complete.

9. A device for administering medication, comprising:

a lower housing configured to fixedly contain a syringe having a needle attached thereto;

an upper housing moveably attached to the lower housing and having a plunger rod attached thereto;

a biasing element for producing a biasing force for moving the upper housing toward the lower housing;

wherein, the biasing force of the biasing element is insufficient to move the upper housing relative to the lower housing, when a syringe having a quantity of fluid therein is present in the lower housing, without the application of an external force against the upper housing.

10. The device of claim 9, wherein the biasing force of the biasing element spring is set in relation to the viscosity of the medication intended for delivery.