摘要:
A blade suture needle is adapted for use in a suture needle assembly, and with a suture passer device, for passing a suture needle assembly through tissue. The suture needle includes an elongated resilient sheet body member bounded by opposite principal surfaces. The body member includes at least one central aperture extending between the principal surfaces, having dimensions to permit of a capturing flange to pass therethrough. The suture needle may be part of a needle assembly further including an elongated suture passing through an aperture in the needle. A suture passer device includes an elongated pusher guide with pair of opposed jaw members disposed at its distal end, which may be opened or closed in response to a user action at its proximal end. The guide allows passage of an elongated pusher element through a pusher channel therein. One of the jaw members includes a suture assembly channel aligned with the pusher channel. The other jaw member has an aperture passing therethrough, which is aligned with the suture assembly channel when the jaw members are closed. This other jaw member includes an elongated resilient flange fixedly or retractably attached to the jaw member at the periphery of the aperture, and extending across the aperture to an opposite point on the periphery of the aperture.
摘要:
A fused loop of an elongated material, such as a surgical suture, and apparatus for making the loop are described. Portions of one or more segments of elongated material may be fused in an ultrasonic welding process to form a welded joint. Multiple materials each with different a different melting point may be used for one or more fibers within the elongated material. The elongated material may include a sheath, which may be used to protect a core within the elongated material. A fused region of the fused loop may be formed when a material with a lower melting temperature, compared to one or more other materials in the elongated material, is caused to melt. A related ultrasonic welding apparatus may include a temperature sensor for control of the welding process.
摘要:
The present invention features an ultrasonic surgical system including an ultrasonically vibrating blade, and retractable grasper. The grasper includes a grasping jaw or clamp that is movable, in a direction perpendicular to the primary vibratory mode of the ultrasonic blade element, from an open, extended position to a closed position in which tissue is grasped between the jaw and the vibrating blade, and to a retracted position for storage. The jaw is preferably hinge-actuated.
摘要:
A fused loop of an elongated material, such as a surgical suture, and apparatus for making the loop are described. Portions of one or more segments of elongated material may be fused in an ultrasonic welding process to form a welded joint. Multiple materials each with different a different melting point may be used for one or more fibers within the elongated material. The elongated material may include a sheath, which may be used to protect a core within the elongated material. A fused region of the fused loop may be formed when a material with a lower melting temperature, compared to one or more other materials in the elongated material, is caused to melt. A related ultrasonic welding apparatus may include a temperature sensor for control of the welding process.
摘要:
A method of forming an elastic cloth structure comprising fibers of synthetic, organic, relatively elastomeric polymer and fibers of a synthetic, organic, elongatable, but relatively nonelastic polymer. The relatively elastomeric fibers and the elongatable but relatively nonelastic fibers are forwarded for well dispersed random lay down of an unbonded web with random fiber crossings on a porous forming surface. Some of the fiber crossings are then bonded to provide a coherent bonded cloth web and the web is stretched to elongate some of the fibers in at least one direction. The web is then released so that retraction by the relatively elastomeric fibers provides looping and bunching of the elongated relatively nonelastic fibers to thereby provide a low modulus of elasticity in the direction in which the web was worked.
摘要:
A fused loop of an elongated material, such as a surgical suture, and apparatus for making the loop. Portions of one or more segments to be joined together are fused in a welding process to form a welded joint. The shear area of the fused portion of the joint determines the strength of the joint and is thus preferably relatively large. Various configurations for the welding apparatus facilitate the creation of relatively large fused portions of the joint by maximizing contact between at least one of the welding members of the apparatus and at least one of the segments to be joined.
摘要:
A suture anchor for securing soft tissue to bone may include a threaded body, a head extending along a longitudinal axis, and a plurality of eyelets that extend though the anchor head and that are each configured to receive a suture. The eyelets are offset from one another along an axis that is transverse to the longitudinal axis of the suture anchor. Each eyelet may have a desired shape and cross section. Surgical kits including one or more suture anchors and one or more surgical tools are also described.
摘要:
A manually operated ventilating element such as a bellows for administration of artificial respiration, for example, during anesthesia, has wall sections or pleats of different diameters. When the element is actuated through a small stroke length, the smaller section is actuated. A small volume of gas is delivered and the change in delivered volume per unit stroke length is small, so that the operator can precisely control the delivered volume. When the element is actuated through a larger stroke length, a larger volume per unit stroke length is delivered. The same element can be used to treat children and adults.
摘要:
Apparatus (10) for removing a friction grip fitting (56) from a pipe (50) comprises a first engagement means (16, 18) for directly or indirectly engaging the friction grip fitting, a second engagement means (34) for engaging the end of the pipe at a position spaced-apart from the friction grip fitting and means (24) for applying a force to move the first and second engagement means with respect to one another to slide the friction grip fitting with respect to the pipe.
摘要:
A manually operated ventilating element such as a bellows for administration of artificial respiration, for example, during anesthesia, has wall sections or pleats of different diameters. When the element is actuated through a small stroke length, the smaller section is actuated. A small volume of gas is delivered and the change in delivered volume per unit stroke length is small, so that the operator can precisely control the delivered volume. When the element is actuated through a larger stroke length, a larger volume per unit stroke length is delivered. The same element can be used to treat children and adults.