Abstract: An ultrasonic puncture needle for conducting puncturing while observing a puncturing condition by an ultrasonic image, includes a needle tube main body including an edge at its tip end, and a plurality of corner cube mirrors provided at a predetermined position of the needle tube main body, wherein the plurality of corner cube mirrors are provided in parallel with a center axis of the needle tube main body.

Abstract: A puncture needle capable of clear imaging even if an angle to the irradiation direction of a detection wave is small. According to one embodiment, a ultrasonic puncture needle that conducts puncturing while observing a puncturing condition by means of a ultrasonic image is formed with an edge at the tip end of a puncture needle body, and formed at a specified position of the puncture needle body with at least one corner cube mirror formed by a triangular pyramid recess. Since a ultrasonic wave oscillated from the ultrasonic probe is reflected off the corner cube mirror to be returned to the ultrasonic probe, the reflected wave progresses in the same direction as the incident direction of the ultrasonic wave to be positively returned to the probe even when an angle formed by the irradiation route of a ultrasonic wave and the axis of the puncture needle is small.

Abstract: A puncture needle capable of clear imaging even if an angle to the irradiation direction of a detection wave such as an ultrasonic wave of an ultrasonic probe is small. According to one embodiment, a ultrasonic puncture needle (1) that conducts puncturing while observing a puncturing condition by means of a ultrasonic image is formed with an edge (13) at the tip end of a puncture needle main body (1), and formed at a specified position of the puncture needle main body (11) with at least one corner cube mirror (12) formed by a triangular pyramid recess. Since a ultrasonic wave oscillated from the ultrasonic probe is reflected off the corner cube mirror (12) to be returned to the ultrasonic probe, the reflected wave progresses in the same direction as the incident direction of the ultrasonic wave to be positively returned to the probe even when an angle formed by the irradiation route of a ultrasonic wave and the axis of the puncture needle is small.

Abstract: A device for guiding a puncture needle used in CT (computerized tomography) comprises a guide section having an insertion hole for an introducer and the puncture needle, a pole brace having a leg and standing erect in parallel to the guide section, and a beam for connecting the guide section with the pole brace wherein the pole brace or the leg has a function for changing its length along the axial direction thereof, the beam for connecting both the guide section and the pole brace with each other is prepared from a moldable plastic material which allows X-rays to pass through the same in case of radiation into an integrally molded article.

Abstract: A device for guiding a puncture needle used in CT (computerized tomography) comprises a guide section having an insertion hole for an introducer and the puncture needle, a pole brace having a leg and standing erect in parallel to the guide section, and a beam for connecting the guide section with the pole brace wherein the pole brace or the leg has a function for changing its length along the axial direction thereof, the beam for connecting both the guide section and the pole brace with each other is prepared from a moldable plastic material which allows X-rays to pass through the same in case of radiation into an integrally molded article.

Abstract: A high-tension cable including a metallic resistance wire wound around a reinforcing core, an insulator covering the metallic resistance wire, a braid covering the insulator, and a jacket covering the braid, wherein the reinforcing core has a hollow cylindrical braiding structure so as to increase pliability of the reinforcing core. In the high-tension cable, the reinforcing core can be easily folded with flexibility in crimping a terminal to prevent much stress on the metallic resistance wire around the reinforcing core from being caused and to prevent the metallic resistance wire from breaking.

Abstract: The set of biopsy needles of the invention is provided with a shaft member for an inner needle 6 which has an inner needle base 22 at the front end to fix an inner needle 24, a shaft member for an outer needle 13 which has an outer needle base 21 at the front end to fix an outer needle 23, a gripping member 1 for operation which fixes the shaft member for the inner needle 6 and axially movably support the shaft for the outer needle 13, a actuating member 9 which gives protrusion force to the shaft member for the outer needle 13, a holding member 15 which holds the shaft member for the outer needle 13 at the position before protrusion against the protrusion force of the actuating member 9 and releases from holding the shaft member for the outer needle 13 before protrusion by outside operation, and a rotation generating member 10 which gives rotation force to the shaft member for the outer needle 13 when the shaft member for the outer needle 13 moves axially.

Abstract: An apparatus for cystographic inspection used for observing and measuring the urethrophaxis portion and posterourethovesical angle of a patient of the acraturesis caused by a ventral pressure, comprises a catheter, in the housing of which a flexible urethral locus indicating member, provided with a marking member, is positioned. The flexed condition of the urethral and the posterourethrovesical angle can be clearly confirmed by the urethral locus indicating member, and the position of an exterior urethral opening member, and position of an exterior urethral opening can be surely grasped by the marking member which can be roentgenographed and which is positioned on the urethral locus indicating member and that it is prevented from penetrating into the uretra and this assists in examining of the external urethral opening during roentgenography of the urethral locus indicating member of the catheter.

Abstract: A set of double needles for injecting liquid medicine into a patient through a single injection point contains an inner curved needle slidably and rotatably supported within a shorter outer needle. The distal end of the inner needle can protrude from the outer needle to extend sideways, in a controlled direction and extent. The direction in which the inner needle point is inserted into the patient is determined by controllably rotating and engaging a base of the inner needle with respect to a base of the outer needle, with structure provided to prevent unintentional relative rotation of the needles. Liquid medicine may thus be infused into the body of a patient at a number of locations at a preselected depth into the body and within a zone laterally extending from the distal end of the outer needle. The inner needle, which may have a lateral hole at its end, is withdrawable within the outer needle and straightens within the latter during the course of such a withdrawal.

Abstract: A set of double needles of injecting liquid medicine comprises an inner needle and an outer needle into which the inner needle is inserted. The inner needle is longer than the outer needle and has a curved portion at the top thereof, so that the curved portion of the inner needle protrudes from the outer needle when the inner needle is fully inserted into the outer needle. On the other hand, the curved portion of the inner needle is straightened in the outer needle when the inner needle is retracted in the outer needle so that the inner needle can be rotated therein whereby the injecting point can be varied in a predetermined area in a single puncturing of the needles.

Abstract: In application of a biopsy needle set which is utilized for collecting diseased tissue sections from internal organs in a human body without requiring surgical operation, it is desirable to be certainly taken out the tissue sections by single puncture and to decrease injury of such diseased part in addition, to reduce pain in the patient at the time of sticking into the human body with the needle. In an end of suction type biopsy needle set containing double needle set of an outer needle and an inner needle, the outer needle is narrowed to form a closely contacting portion with the inner needle, whereby negative pressure can be accumulated in a cylinder at the early stage of such suction, while thus accumulated negative pressure is transferred to an opening of the outer needle at the moment when the withdrawn inner needle is passed through the above described closely contacting portion, so that such suction force sufficient for collecting the tissue sections is produced.