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Method of injecting a drug and echogenic bubbles into prostate tissue

  • US 6,905,475 B2
  • Filed: 10/11/2002
  • Issued: 06/14/2005
  • Est. Priority Date: 10/12/2001
  • Status: Expired due to Term
First Claim
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1. A method of injecting a drug into prostate tissue comprisinga. positioning a distal end of an injection head of a surgical instrument adjacent a region of prostate tissue into which it is desired to inject the drug;

  • and b. emitting a high pressure stream of the drug from a aperture in the distal end of the surgical instrument using needle-less injection and c. injecting echogenic bubbles along with the drug into the prostate tissue, wherein the injection head has a first inlet connected to a high pressure source of the drug and a second inlet connected to a gas delivery tube.

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