4 results about "Prostate biopsy" patented technology

The application discloses a prostate puncture gun head for in-situ rotary cutting and a sampling method thereof, and belongs to the technical field of urological surgery. The needle head is arranged at the front end of the puncture gun and is used for penetrating into the prostate tissue; the blade groove is semicircular and is arranged along the longitudinal direction of the needle head; the blade is rotatably arranged in the blade groove and rotates along the track of the blade groove; the tissue groove is arranged on the surface of the needle head and is used for collecting the cut tissue sample; the knob spring device is connected with the blade and is used for providing rotary power to drive the blade to rotate and cut the prostate tissue along the blade groove. The knob spring device is used for driving the blade to rotate and move along the track of the semicircular blade groove, in-situ rotary cutting and sampling of the prostate tissue are realized, tissue tearing is effectively reduced, the flatness of the cutting surface is ensured, and the accuracy and efficiency of the sampling process are improved.

This invention relates to a crossbow-type prostate biopsy gun with adjustable puncture depth, belonging to the field of medical device technology. It includes a piercing needle, a detachable puncture needle, a needle core, a limiter, a chamber, a support plate, a bolt-action mechanism, a loading device, a firing device, a safety device, and a needle magazine. One end of the support plate is fixed with the piercing needle, which contains a puncture needle with a needle core inserted into it; the length of the puncture needle is shorter than the length of the needle core. The rear ends of both the puncture needle and the needle core have baffle-like protrusions. The support plate surface has a chamber, a bolt-action mechanism, a loading device, and a firing device corresponding to the baffle-like protrusions. The front end of the support plate has a limiter for adjusting the puncture depth. The support plate also has a puncture needle removal device and a needle magazine for storing and releasing puncture needles one by one. The end of the needle core near the needle tip has a tissue groove. This invention provides a biopsy gun with adjustable puncture depth, prevention of needle tract implantation, and rapid puncture capability.

The invention discloses an adjustable prostate puncture surgery ultrasonic probe depth limiting device, which relates to the technical field of medical instruments, and comprises an ultrasonic probe, a support frame, a depth adjusting and locking assembly assembled on the support frame, an elastic bayonet convexly arranged at the front end of the support frame, and a limiting separation blade detachably and movably connected with the elastic bayonet, the elastic clamping opening and the limiting blocking piece are movably matched with the clamping gap through the annular boss, and the U-shaped bent structure on the rear portion of the elastic clamping opening has good elastic deformation capacity and can be matched with multi-direction movement of the annular boss; meanwhile, the arc-shaped peripheral wall of the annular boss is matched with the outline of the inner side of the clamping opening, the thickness of the annular boss is precisely matched with the width of the clamping gap, sufficient allowance is reserved for pitching, swinging and rotating adjustment, and an operator can freely adjust the angle of the ultrasonic probe to complete axial rotating scanning and multi-directional probing through cooperation; the angle adjusting action does not interfere with the depth locking state, and the defect that a simple limiting tool restrains probe operation is overcome.

The utility model belongs to the technical field of body position pads, and particularly relates to a body position pad for prostate puncture, which comprises a supporting pad, adjusting grooves are symmetrically arranged on the edge of the bottom surface of the supporting pad, a first screw is fixed on the top surface of the inner side of each adjusting groove, and an adjustable support is sleeved on the outer side of each first screw. The adjustable support comprises a lantern ring, a first nut, a connecting plate, a supporting cylinder, an adjusting plate and an arc-shaped plate. The support can be supported below the buttocks of a patient through the supporting pad and the elastic pad, the bent positions of the legs of the patient are supported through the arc-shaped plates at the tops of the two adjusting supports, the legs of the patient are bound through the binding belts, stable supporting of the legs of the patient is achieved, and medical staff can rotate the supports on the first threaded rods to adjust the supporting positions of the legs of the patient. The supporting angle of the legs of the patient is adjusted by rotating the supporting cylinder on the second screw rod, the supporting height of the legs of the patient is adjusted by adjusting the position of the adjusting plate on the supporting cylinder, and the supporting effect of the whole support is better through multi-directional adjustment.