摘要:
A system for the internal fixation of a fractured bone of an elbow joint of a patient includes at least one bone plate, each bone plate having a plurality of holes and generally configured to fit an anatomical surface of the fractured bone. The at least one plate is adapted to be customized to the shape of a patient's bone. The system also includes a plurality of fasteners including at least one locking fastener for attaching the bone plate to the bone. At least one of the holes is a threaded hole. Guides for plate benders, drills, and/or K-wires can be pre-assembled to the threaded holes, and the locking fastener can lock into any of the threaded holes after the guides are removed.
摘要:
A surgical instrument includes an end effector having a clevis and first and second jaws mutually rotatable between open and closed positions. The jaws are proximally directed and laterally displaced relative to an axis of a control shaft of the instrument. The jaws hold first and second parts of a fastener, respectively. The first part includes a base having tissue-piercing posts, and the second part includes a second base defining apertures receiving the posts and a portion movable relative thereto between first and second orientations. When the posts are inserted into the apertures, the movable portion can be moved from the first unlocked orientation into the second configuration to lock the fastener parts together in an implanting position determined by various alignment measures, including markings or flags on the jaws or at the housing. The instrument is adapted to move the second part into the second configuration.
摘要:
A flexible endoscopic clip applier includes a flexible coil, a manual actuator coupled to one end and a jaw assembly coupled to the other. A store of clips is arranged adjacent to the jaw assembly and a clip pusher adjacent to the store of clips. The actuator includes a lever for opening and closing the jaws, a knob for rotating the jaw assembly, and a crank for dispensing clips. The knob and lever are coupled to a single control member which extends through the coil to a joiner where it is joined to a pair of pull wires coupled to the jaws. The crank is coupled to a second control member which is threaded along a portion. The threaded portion engages a threaded member near the pusher such that rotation of the second control member by the crank causes the pusher to be moved distally.
摘要:
A flexible clip applier includes a flat wire wound tubular coil, a pair of jaws at the end of the coil, end effector wires extending through the coil and coupled to the jaws, and a clip-advancing wire extending through the coil. A proximal handle is adapted to impart tensile force the end effector wires and the tubular coil, and compressive force to the clip-advancing wire and tubular coil to thereby effect advancement of a clip into the jaws and over tissue compressed between the jaws, and deformation of the clip over the tissue.
摘要:
An endoscopic or laparoscopic biopsy forceps instrument is provided which includes a flexible tubular member having proximal and distal ends, a biopsy jaw assembly at the distal end of the tubular member, an actuation assembly to operate the jaw assembly between open and closed positions, and a control assembly to deflect the biopsy jaw assembly relative to a lumen through which the instrument extends and to rotate the jaw assembly about the longitudinal axis of the instrument.
摘要:
An endoscopic surgical instrument for deploying a two part fastener having a male fastener part and a female fastener part, includes a tube having a proximal end and a distal end. An end effector is coupled to said distal end of said tube and is configured to hold the male fastener part and the female fastener part in opposed relation. An actuator is coupled to said proximal end of said tube and is configured to actuate the end effector. A shearing device may be positioned proximate the end effector to shear off a tip of the male fastener part after the male and female fastener parts are moved into locking relation. In addition, the surgical instrument may include a male fastener part having a shaft with a plurality of detent positions. Further, the male fastener part may include a base and a shaft pivotally connected to the base.
摘要:
The invention in certain aspects relates to a one-piece coil-shaped surgical fastener for fastening tissue segments, especially suitable for fastening segments of the lower esophageal sphincter and fundus in an endoscopic procedure for the treatment of GERD. The invention also relates to related methods and devices for insertion of such a fastener, especially along a juncture of the surfaces of such tissue segments.
摘要:
An orthopedic screw system includes a screw with a locking head that can both lockingly engage in a fixed angle threaded screw hole to secure a plate to a bone without compression, and non-lockingly engage at a compression screw hole to provide compression between the plate and the bone. The structure of the system is particularly well adapted to plates and screw of small dimensions, such as screws smaller than 3.5 mm and is capable of providing high compressive force, on the order of 120 lbs of axial load, without significant plastic deformation between the screw and plate.
摘要:
A pair of plate benders are provided for bending a bone plate. Each bender includes a lever arm having a first end and a second end. The first end includes a fulcrum for placement on the upper surface of the plate, and a foot insertable through the oblong screw hole to contact the lower surface of the plate. The second end includes a cut-out with a central divider. The cut-out has a length dimensioned to extend widthwise about the plate at the location of the oblong screw hole with the divider extending into the oblong screw hole for stability. The second end may also be provided with a deep slot that accommodates the thickness of the plate. In use, plate benders with such structure can be used in pairs to longitudinal bend the plate; bend the plate in plane; or twist the plate along its axis.
摘要:
A system for the internal fixation of a fractured bone of an elbow joint of a patient includes at least one bone plate, each bone plate having a plurality of holes and generally configured to fit an anatomical surface of the fractured bone. The at least one plate is adapted to be customized to the shape of a patient's bone. The system also includes a plurality of fasteners including at least one locking fastener for attaching the bone plate to the bone. At least one of the holes is a threaded hole. Guides for plate benders, drills, and/or K-wires can be pre-assembled to the threaded holes, and the locking fastener can lock into any of the threaded holes after the guides are removed.