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DEVICE AND METHOD FOR PIERCING A PATIENT'S SKIN WITH AN INJECTOR WHILST REDUCING PAIN CAUSED BY THE PIERCING

  • US 20100049126A1
  • Filed: 07/01/2009
  • Published: 02/25/2010
  • Est. Priority Date: 01/01/2007
  • Status: Abandoned Application
First Claim
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1. An injector for piercing a region of a patient'"'"'s skin comprising:

  • a. piercing mechanism, comprising;

    i. at least one reciprocating needle;

    said at least one needle is characterized by diameter K;

    said needle penetrates to depth D in said skin;

    said depth D is characterized by an initial temperature T;

    ii. at least one container having a medicament to be delivered to said patient;

    b. cooling mechanism, comprising;

    i. at least one attachable cooling means, especially a Peltier Cooled Cold Plate (PCCP), in connection with a radiator and sufficient DC power supply;

    said PCCP is characterized by an effective surface area S;

    said effective surface S is optimized such that said pain caused by said piercing is eliminated;

    said PCCP is characterized by temperature TiPCCP;

    said PCCP adapted for cooling a portion of said skin prior to and/or during and/or after piercing thereof by said piercing mechanism such that the cooling is obtained at said depth D;

    said depth D is cooled from said initial temperature T to a final temperature TD

    T) in a period of time t (dt) by said PCCP;

    said final temperature TD of said depth D is higher than about 0 and lower than about 13 degrees C.;

    said Δ

    T/dt is optimized such that said pain caused to said patient is eliminated;

    c. at least one aperture through which said needle is reversibly piercing said skin;

    wherein said patient reported pain during said piercing is less than 2 on the SVAS scale.

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