摘要:
A method of tissue compression is disclosed herein where the device to cause such compression is composed of a fastener bar and receiver. The device has the capability to self-adjust to tissues of varying thicknesses to cause hemostasis. This tissue gap variability allows for compression of regions of tissue where thick and thin tissue are both present. This variability also enables the same device to be used on a wide variety of tissues of different thicknesses. The tissue fastener bar of this invention contains a series of cut-out portions which distribute the compressive forces along the device in an alternating, staggered manner. The receiver is of a generally U-shaped configuration with the fastener bar being contained at least partially within the U-shape. Compression occurs between the side walls of the receiver and the fastener bar and variability in gap is accomplished by flexure of the side walls of the receiver. Varying side wall flexure is enhanced by cut-out portions in the receiver which allow each segment to flex somewhat independently. A number of options also exist for configuration of the fastener bar and/or receiver with the same basic method of compression being unchanged.
摘要:
A two-piece suture anchor is disclosed wherein a barrel-like main portion is provided with a pair of legs in a central opening. A ball-like actuating device is received within the central opening and drawn upward into the device in order to separate the legs and cause the device to expand into the soft cancellous bone of a previously prepared bone site.
摘要:
A suture anchor is described which in one form may be easily fabricated from extruded material by angular cuts and bore holes which provide an offset pulling force to the suture. In an alternate and preferred embodiment the suture anchor is injection molded having an annular displaced corner and abutment wall which act to seat the suture anchor firmly within a bore hole. Novel application means are also disclosed which hold the suture anchor on a frangible shaft for insertion and upon completion of the insertion permit fracture of the frangible portion and removal of the instrument.
摘要:
A method for terminating bleeding from a portion of a bone, which portion has been opened so as to be subject to bleeding, including the steps of extending a covering over the opened portion of the bone, and fixing the covering to the bone such that the covering is in snug engagement with the opened portion of the bone so as to terminate bleeding from the bone.
摘要:
A biocompatible tissue repair stimulating implant or “scaffold” device is used to repair tissue injuries, particularly injuries to ligaments, tendons, and nerves. Such implants are especially useful in methods that involve surgical procedures to repair injuries to ligament, tendon, and nerve tissue in the hand and foot. The repair procedures may be conducted with implants that contain a biological component that assists in healing or tissue repair.
摘要:
A method for performing an anterior cruciate ligament repair procedure wherein a bone plug attached to a section of tendon or ligament is fixed in a bone tunnel. The method utilizes an adhesive to secure the bone block in the bone tunnel.
摘要:
A suture anchor having an anchor member, a central shaft and outwardly extending wing members. A suture mounting hole is provided in the suture anchor for receiving a surgical suture. The suture anchor is inserted into a bore hole in a bone as part of an orthopedic surgical procedure wherein soft tissue such as a tendon is attached to the surface of the bone. Optionally, bone tissue may be attached to the surface of the bone. The wings may have cutting edges or piercing points. The suture anchors may have screw threads on their outer surfaces.
摘要:
A graft fixation device combination. The device is useful for affixing a tissue graft to a bone or other body surface. The combination has a fixation device having two implantation members connected by a connecting member. The connecting member has at least one lateral wing member extending therefrom. The implantation members have longitudinal passageways therethrough. The combination also has an insertion member in engagement with the distal end of each implantation member.
摘要:
An improved surgical clip of the type having first and second leg members joined at their proximal ends by a resilient hinge region and terminating at their distal ends in latch means. Each leg member has an outer surface and a clamping inner surface, and the outer surface of each leg member is configured to be accepted by the jaws of the clip applier. The improvement in the clip design specifically relates to a reduction in the mass of the clip in the hinge region. A reduced mass in the hinge region lessens the strain at the hinge region when the clip is in a clamped position, and therefore increases its strength retention.
摘要:
Injection molding methods and apparatus for the production of casting molds for toric lenses having ballast oriented properly with respect to the cylinder axis of the toric surfaces. A calibrated rotatable ring mechanism is used within the injection molding body, for producing a slot or other alignment means on the lens casting mold at a point which is offset a predetermined number of degrees from the axis of the toric surfaces being formed in the casting mold. When the casting mold containing a newly cast lens is mounted on a precision lathe, the mating of the slot with a permanent ridge on the lathe spud ensures that the mold seats on the lathe at the same established place each time with respect to the position of the cutting tool. The offset between the toric axis and the position of the cutting tool has already been established, and therefore there is no need for the lathe operator to make any measurements or resetting of the cutting tool.