Ultrasonic arrangement for puncturing internal body organs, vessels and the like

Claim 1

An ultrasonic surgical device for puncturing the body of a patient comprising an ultra sound applicator including a housing and an ultrasonic beam transmitter positioned within said housing for scanning a beam toward a region of the body of the patient, viewing means operatively associated with said ultrasound applicator and including a housing and a viewing screen for producing an image of the region of the body being scanned, with the image being located with respect to said viewing means housing at a position corresponding to the location of the applicator housing with respect to the region of the body being scanned, an elongated aiming pin, pin mounting means for adjustably mounting said aiming pin on said viewing means housing and for releasably locking same in place with respect thereto, said aiming pin having a distal end movable in overlying relation with respect to said viewing screen, said pin mounting means having means for ascertaining the position of said distal end of said aiming pin relative to said viewing means housing an elongated puncturing cannula, and cannula mounting means for adjustably mounting said cannula on said ultrasound applicator housing and for releasably locking same in place with respect thereto, said cannula having a distal end movable with respect to said ultrasound applicator housing to reach the region of the body being scanned, said cannula mounting means having means for ascertaining the position of said distal of said cannula relative to said ultrasound applicator housing, and said aiming pin and said pin mounting means, and said cannula and said cannula mounting means, being disposed relative to their respective housings such that the location of the distal end of the aiming pin with respect to the viewing means housing can be duplicated with respect to the location of the distal end of the cannula with respect to the ultrasound applicator housing.