Abstract: Position locating device for interstitial radiotherapy of a body portion comprising a flexible sheet member for being received about and conformed with a body portion which is to receive radiotherapy, the sheet member having a plurality of spaced position locating means, and attachment means for releaseably securing the sheet member about the body portion. The position locating means of the sheet member comprises a plurality of spaced openings arranged in rows and columns, and the attachment means comprises a pair of clamping units securing a plurality of bands with the ends of the sheet member. The clamping units are detachably secured with the sheet member for being replaced and repositioned therewith and the first ends of the bands are pivotally secured with the respective clamping units, while the second ends of each of the bands of one of the clamping units is detachably securable with a corresponding one of the second ends of the bands of the other clamping unit.

Abstract: An instrument for inserting one or more hollow needles into the body for interstitial radiotherapy of malignant tumors, which permits the incremental advancement of a needle by means of a reciprocating tubular element having a collapsible end portion which alternately grips the needle to advance it into the body, and releases the needle to permit the instrument to be moved back on the needle to a new position to again advance it further into the body. The instrument permits the insertion of a needle with only one hand, freeing the other hand to both support the area being implanted and to maintain a continuous stereotactic guidance of the advancing needle, as well as facilitating implanation of long and closely spaced needles deep within the body.

Abstract: An instrument for inserting a plurality of hollow needles into a body for interstitial radiotherapy comprising a unit having a pair of elongated members each having first and second ends and providing clamping portion at the first ends and a handle at the second ends. The members are pivotally connected intermediate their ends for movement between closed and opened conditions by actuation of the handle, and the clamping portion engages the needles when the members are in the closed condition and disengages and releases the needles when the members are in the opened condition.