| 摘要 |
A lesion can be accurately located, its size and its biological potential estimated prior to surgery by measuring the interstitial fluid pressure of the lesion. A pressure-sensing biopsy needle, which is an inner pressure-sensing needle (2) within an outer needle (1), rapidly measures the interstitial fluid pressure of tissue and allows the operator to determine the location and estimate the size of a lesion. The interstitial fluid pressure of the lesion can be correlated with the biological potential and is used to determine whether surgical removal of the lesion is warranted. When surgical removal of the lesion is desired the inner pressure-sensing needle (2) is removed leaving the outer needle in situ, and a hookwire (15) is inserted into the tissue through the accurately placed outer needle (1) thus transfixing the lesion. |
