Method and apparatus for extraction of a sample from a sample source

1. An apparatus for extraction of a sample from a sample source, the apparatus comprising:

a bi-directional needle-free injector that injects a fluid into the sample source, vibrates the sample source to facilitate withdrawal of the sample from the sample source and withdraws the sample from the sample source; and

a sample evaluator that evaluates the sample source as a function of measuring one or more identifying parameters in the withdrawn sample.

2. The apparatus of claim 1 wherein the injector is configured to inject into, vibrate, and withdraw from tissue of a biological body as the sample source.

3. The apparatus of claim 1 wherein the injected fluid is physiological saline.

4. The apparatus of claim 1 wherein the injector is configured to withdraw an extracellular fluid as the sample.

5. The apparatus of claim 1 wherein the one or more identifying parameters include metabolic or proteomic parameters.

6. A method for extraction of a sample from a sample source using the apparatus of claim 1 , the method comprising:

injecting a fluid into the sample source;

vibrating the sample source and withdrawing a sample from the sample source; and

evaluating the sample source as a function of measuring one or more identifying parameters in the withdrawn sample.

7. The method of claim 1 wherein the sample source includes tissue of a biological body.

8. The method of claim 1 wherein the injected fluid is physiological saline.

9. The method of claim 1 wherein the withdrawn sample is an extracellular fluid.

10. The method of claim 1 wherein the one or more identifying parameters include metabolic or proteomic parameters.