摘要:
A suture anchor for securing soft tissue to bone, including a body and a continuous suture loop. The body extends along a longitudinal axis between opposing first and second ends, and has an external threaded portion extending coaxial with the axis, and a bore extending from the second end towards the first end. The continuous suture loop is secured within the bore of the body so that at least a portion of the loop extends from the second end of the body to form an eyelet.
摘要:
A suture anchor for securing soft tissue to bone, including a body having opposing first and second ends, a longitudinal axis extending between the ends, an external threaded portion extending from the first end, and a bore extending from the second end towards the first end. The body also has a first pair of slots extending laterally outwardly from the bore and extending longitudinally to a predetermined first distance from the second end, and a second pair of slots extending laterally outwardly from the bore and extending longitudinally to a predetermined second distance from the second end. The anchor additionally includes an eyelet receivable within the first and the second pairs of slots of the body and having an opening for receiving a suture, and a spring biasing the eyelet into the bore.
摘要:
This invention is a fused loop (10) of an elongated material such as a surgical suture, and apparatus for making the loop. Portions of one or more segments (12) to be joined together are fused in a welding process to form a welded joint (14). The shear area of the fused portion (20) of the joint (14) determines the strength of the joint (14), and is thus preferably relatively large. Various configurations for the welding apparatus facilitate the creation of relatively large fused portions (20) of the joint (14) by maximizing contact between at least one of the welding members of the apparatus, and at least one of the segments (12) to be joined.
摘要:
A connector for detachably securing an end of a tube, such as a catheter, to a fluid port of a fluid transfer device, such as an implantable device, the connector having a body part which defines a coupler for coupling to a coupler receiver of the transfer device. The connector includes a sleeve which fits within the body part and defines an aperture for compressively receiving an end of the tube which has been fitted over a fluid port of the transfer device. The body part is rotatable about the sleeve to facilitate coupling of the coupler and coupler receiver. In one embodiment the sleeve has an inner diameter at one end large enough to slide freely over the tube when it is fitted over the fluid port, and the diameter decreases at an intermediate point along the length of the sleeve to provide for compressive axial movement of the tube to form an annular thickness portion of the tube where it abuts the face of the transfer device.
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 prosthetic cardiac valve assembly for sutureless implantation in a patient. The assembly includes a generally disk-shaped valve annulus element and one or more generally disk-shaped retainer elements. The elements are adapted for mutual engagement and for engagement with a host tissue region so as to fix a portion of the host tissue between them in a sutureless bond. Ultrasonic or thermal energy is applied to one or more of the elements to bond them together. Either the valve annulus element or the retainer element includes a plurality of projections, and the corresponding element includes a corresponding plurality of apertures for receiving the projections, thus providing for mutual physical engagement. The valve annulus element can include a plurality of valve leaflets which open and close in response to fluid pressure differentials across them. Various insertion devices for the assembly are designed to facilitate insertion of the elements in the heart through a relatively small incision. The elements can be implanted, assembled and bonded together in situ around the host tissue.
摘要:
A soft tissue fixation assembly comprises an anchor element which is installed in a bone or other tissue, and a joiner element which mates with the anchor element to define a tissue capture region between them. A section of soft tissue is held within the tissue capture region, and energy is transmitted into the joiner element to cause relative vibratory motion between the respective components and localized melting of the contacting portions of the respective components to establish a welded joint. The soft tissue segment is thus fixed to the bone without sutures or other fasteners.
摘要:
An infusion device for a syringe having a tubular wall with a fluid dispensing opening at one end and an internal plunger. A device includes an element for driving the syringe plunger at a selected one of a set of predetermined spring-generated forces which are substantially constant over the range of motion of the plunger.
摘要:
A welding apparatus that includes a first member having a first suture-contacting surface, a second member having a second suture-contacting surface, and a device for moving the first member relative to the second member to define a gap between the respective suture-contacting surfaces. The first member is capable of vibrating and delivering mechanical energy at ultrasonic frequencies. The second member is stationary relative to the first member. A fixture element is adapted to receive and maintain two or more segments of a material to be welded in a predetermined alignment in the gap between the first and second surfaces of the first and second members during a welding operation. According to another aspect of the invention, an ultrasonic welding apparatus includes first and second members with patterned first and second suture-contacting surfaces. The patterned surfaces can be complementary or non-complementary and the surface patterns on each member may vary in either a periodic or a non-periodic manner.
摘要:
A stapler for ejecting at least one staple of resilient thermoplastic material having a base member and two legs extending from the base member to sharp ends and wherein the legs include overlapping distal portions for engaging body tissue. The stapler includes a pair of jaws movable between open and closed positions, a handle and trigger assembly for controlling operation of the jaws, an elongated tubular structure connecting the handle and trigger assembly to the jaws, an ejector for ejecting at least one staple from one of the jaws against the other of the jaws, and posts for holding normally overlapping distal portions of legs of the staple generally parallel until after the staple is ejected from the stapler.