40 results about "Bone clamp" patented technology

A bone clamp moving bone segments relative to each other. The clamp comprises a first and second branch and a bridge connecting the first and second branch. Each branch may have a free end and a rear end. The bone clamp may have a first, undeformed state, where the branches may be angled or substantially parallel with respect to each other. The bone clamp may have a second, deformed state, where the braches may be moved from the first state. The bone clamp may be deformed using an instrument such as pliers. When the bone clamp is in the deformed state, the branches may be inserted into bone segments. Thereafter, the instrument may be disengage from the bone clamp and the clamp may return to its undeformed state. While returning to the first, undeformed, state the bone clamp may apply compressive or distraction forces on the bone segments, thereby moving the bone segments relative to each other.

The surgical bone clamp securely grasps and removes bone and other tissue during surgery, such as total knee replacement surgery. In one embodiment, the device includes a handle portion, a clamp portion, and a ratchet portion. The handle portion includes two handle arms that are pivotally connected, and the ratcheting portion permits the handle arms to be spaced at any one of a plurality of step settings. One of the handle arms provides a finger loop to engage the thumb, while the other handle arm provides a finger loop to engage at least one opposing finger. The clamp portion includes two serrated clamping jaws designed to engage the bone or other tissue surface and to provide adequate gripping force to allow for removal of the bone piece or tissue from the body cavity. The device provides significant mechanical advantage to the user, may be operated with one hand, and may include removable clamping jaws.

Tools may be used individually and/or in combination to allow minimally invasive and safer orthopedic surgery. A femur adjustment tool lifts and lateralizes the proximal end of the femur during hip replacement surgery by pivoting on a ball temporarily placed in the acetabulum. A tissue protection and broach (rasp, cutting, drilling) guide tool may retract tissue at the incision, protect tendons and soft tissue, and provides a curved, elongated surface that cradles and guides the broaching tool. A tip of the main body of the protection and guide tool, and a hook protruding from the main body, may extend along opposite surfaces of the femur to help “capture” a portion of the femur for tool stability and to effectively and positively protect the piriformus tendon that will reside in the “V” between the hook and tip. A bone clamp is used when a generally transverse cut is made across a bone, for example, a knee surgery proximal tibial cut, wherein the clamp improves control of the bone portion for safer freeing of the bone portion from soft tissue and extracting the bone portion from the incision. A broad, flat plate of the bone clamp may be slid between the bone and the bone portion into the narrow space that has been created by cutting the bone, and a relatively narrow gripping member may be slid along/across the opposing surface of the bone portion, which allows the narrow gripping member to fit into the intercondylar notch of the femur.

The invention discloses a pair of reduction forceps. The pair of the reduction forceps comprises at least two bone clamping forceps bodies and a connection rod connecting the two bone clamping forceps. The connection rod comprises a connection rod body, an adjusting rod and a longitudinal adjusting mechanism enabling the connection rod body to move relative to the adjusting rod in the longitudinal direction. According to the reduction forceps, people only need to adjust rotation of a gear so that broken bones can move relatively along the connection rod in the longitudinal direction, and accordingly reduction of the broken bones is achieved. Manual adjustment is not needed, the positions of the broken bones do not need to be fixed, after broken bone reduction is finished, the relative position of the two bone clamping forceps bodies can be locked through the connection rod body, and accordingly the relative position of the broken bones is locked. The situation that the broken bones are dislocated after subsequent operation of an operation is avoided, so that labor intensity of medical staff is lightened, and pains of patients are relieved.

The invention discloses a small bone clamping device comprising a bone screw and a bone plate. The bone screw comprises a rod, a neck and a head. The neck is arranged between the rod and the head. The rod comprises a first threaded section provided with a first-level thread. The head comprises a second threaded section provided with a second-level thread. The neck has no threads. The bone plate is provided with locking holes. Width of inner edge sides of the locking holes is less that thickness of the bone plate. According to the arrangement, the multi-level threads are formed on the bone screw, and through the thread formed on the head, the bone screw is effectively locked with the bone plate; a flange is adopted to replace a locking thread of the conventional bone plate, thus the thickness of the bone plate is maximally decreased.

The invention discloses a long bone cutting device which comprises two sliding rails arranged in parallel. Two arc guide rails are symmetrically arranged at the two ends of the two sliding rails. The arc guide rails are connected with the two sliding rails in a sliding mode through U-shaped forks at the two ends. Two bone clamping forceps are symmetrically arranged on the two arc guide rails. Each bone clamping forcep comprises a left forcep body and a right forcep body which are symmetrically arranged, forcep handles of the left forcep body and the right forcep body are connected through a rotating shaft hinge, the lower end of the right forcep body is connected with the arc guide rails through sliding locks in a sliding mode, an adjusting screw is connected to a hinge on the inner side of the right forcep body, and the adjusting screw penetrates through a through hole in the lower end of the left forcep body to be connected with an adjusting nut. The two bone clamping forceps can transversely move along the sliding rails and can also rotate around the arc guide rails, and two cut-off thighbones can be conveniently fixed to the proper position during surgery; due to the fact that scale marks are arranged on the sliding rails and the arc guide rails, the motion distance and the rotating angle of the bone clamping forceps can be precisely controlled.

Devices and methods for stabilizing bone. The devices and methods may provide a more balanced proximal and distal compression when stabilizing bone. An exemplary device may comprise a staple member including a bridge connecting a first leg to a second leg. The device also may comprise a resilient arm elongated between a fixed end and a free end, and projecting from the first leg and/or from an end region of the bridge adjoining the first leg. At least a portion of the resilient arm intermediate the fixed and free ends may be inwardly adjacent and spaced from an upper region of the first leg.

The invention discloses an experiment platform for individual dental implant performance detection. The experiment platform comprises a platform rack, wherein an alveolar bone clamp, an analog load loading mechanism, a torque sensor, a tension sensor and a resonance frequency analyzer are arranged on the platform rack. The invention further provides a method using the experiment platform, which comprises the following steps: acquiring related parameters; manufacturing a dental implant model and an alveolar bone model according to the acquired parameters, and combining into a whole; and detecting the alveolar bone model in the alveolar bone clamp in a fixed experiment platform. According to the invention, the highly simulated individual experiment platform is established by collecting specific key parameters of a user, and the performance of an individual dental implant in the true oral environment of a specific patient by individual experiment specific detection, so that the measured data has more reference value. The experiment platform has compact structure, stable operation and simple operation.

The invention provides an adjustable-length simple-and-convenient-to-operate bone drill device. The bone drill device comprises a hollow cylinder, a bone drill rod group and a positioning device, wherein the bone drill rod group is movably connected onto the hollow cylinder, and the positioning device is used for positioning the bone drill device; the bone drill rod group comprises a first bone drill rod and a second bone drill rod; a first sliding groove and a second sliding groove are respectively formed in the two sides of the hollow cylinder; a first sliding block is arranged on one side of the first bone drill rod, the first sliding block is matched with the first sliding groove, a second sliding block is arranged on one side of the second bone drill rod, and the second sliding block is matched with the second sliding groove; the positioning device comprises a positioning support and the positioning support is arranged at the bottom of the hollow cylinder; a bone clamping device is movably connected onto the positioning support. The adjustable-length simple-and-convenient-to-operate bone drill device has the advantages that not only is the device simple in structure and convenient to carry, but also the depth of bone drilling after bone positioning can be accurately adjusted by the user according to the actual situation, and the operation is simple and convenient to conduct.

The invention discloses a clamping-installation type bone sawing machine with bone sawing length adjustable. The clamping-installation type bone sawing machine comprises a workbench, a machine frame, a saw blade, guide rails and a feeding sliding plate. The guide rails are arranged on the workbench, the feeding sliding plate is arranged on the guide rails through pulleys arranged at the bottom of the feeding sliding plate, sliding grooves are formed in the two sides of the feeding sliding plate, adjusting screw rods are arranged in the sliding grooves, sliding blocks are arranged on the adjusting screw rods and located in the sliding grooves, and a bone clamp which rotates horizontally relative to the sliding blocks is hinged to each sliding block. Adjusting screw rods are arranged on the machine frame, a bone sawing length setting plate is fixed on one end portion of each adjusting screw rod, and a rotating handle is arranged at the other end of each adjusting screw rod. Due to the bone clamps, cutting safety is further enhanced. Due to the fact that the bone clamps are arranged on the sliding blocks and can rotate horizontally relative to the sliding blocks, the relative position of the bone clamps on the two sides can be adjusted, and therefore bones in different shapes can be clamped. Due to the fact that the position of the bone sawing length setting plate can be adjusted, the bone sawing length can be adjusted through adjustment of the distance between the saw blade and the bone sawing length setting plate.

The invention discloses a saw blade leveling type clamping-installation bone sawing machine with a sliding plate for feeding. The clamping-installation bone sawing machine comprises a workbench, a machine frame, a saw blade, guide rails and the feeding sliding plate. The guide rails are arranged on the workbench, the feeding sliding plate is arranged on the guide rails through pulleys arranged at the bottom of the feeding sliding plate, and a through groove where the saw blade can penetrate through is formed in the plate face of the feeding sliding plate. Sliding grooves are formed in the two sides of the feeding sliding plate, adjusting lead screws are arranged in the sliding grooves, sliding seats are arranged on the adjusting lead screws and located in the sliding grooves, and a bone clamp is hinged to each sliding seat and can rotate horizontally relative to the sliding seat. The two sides of the upper portion of the machine frame are respectively provided with a leveling mechanism of a driven shaft. Due to the fact that the bone clamps are arranged on the sliding seats and can rotate horizontally relative to the sliding seats, the relative position of the bone clamps on the two sides can be adjusted, and therefore bones in different shapes can be clamped. Due to the fact that the vertical sliding grooves, sliding blocks and leveling bolts are additionally arranged on the machine frame, the levelness of the driven shaft can be adjusted through adjustment of the leveling bolts, and therefore the problem that the saw blade is prone to deviation or being pulled broken is solved.

The invention discloses an automatic reverse zipper head attaching mechanism. The automatic reverse zipper head attaching mechanism comprises a mounting baseplate, a main plate, bone clamp air cylinders as well as a material pushing air cylinder and a material channel, wherein the material channel is connected with the main plate through a feed inlet; vertical plates are mounted on the mounting baseplate and positioned at the side ends of the main plate; fixing plates are mounted at the upper ends of the vertical plates; a material pushing slide groove and at least three bone clamp grooves are formed at the upper end of the main plate; a material pushing device is mounted in the material pushing slide groove, and comprises a material pushing slide block connected with the material pushing air cylinder and a slide block seat arranged at the lower end of the material pushing slide block; a bag opening needle is arranged at one side end of the material pushing slide block; a bag opening needle slide seat positioned at the lower end of the bag opening needle is arranged at the upper end of the slide block seat; a bone clamp I, a bone clamp II and a bone clamp III which are connected with the bone clamp air cylinders are mounted in the bone clamp grooves; and the material pushing device is arranged in the material pushing slide groove between the bone clamp II and the bone clamp III. The automatic reverse zipper head attaching mechanism is novel in design, simple in structure, high in production efficiency and low in cost; and by adoption of the automatic reverse zipper head attaching mechanism, the habit that a sealing bag is closed or opened when a zipper head is pulled to the left or right can be met.

A bone clamp for securing of a measurement aid to a bone comprises a first clip and a second clip and an adapter. The adapter comprises a pulling mechanism and a locking mechanism, whereby the position of the first clip relative to the second clip can be altered by actuation of the pulling mechanism, wherein the position of the first clip relative to the second clip can be fixed by actuation of the locking mechanism. The first clip and the second clip each have an inner face which is oriented in the direction of the bone, wherein the first clip has one or more spikes on the inner face and wherein the second clip has a sliding edge on the inner face.

The invention discloses a positioning, opening and clamping device for minimally invasive total hip arthroplasty. The device comprises a bed body, wherein a head supporting pad, a hand positioning device, a body positioning device, a bone clamping device and a to-be-operated leg positioning traction device are arranged on the bed body. According to the device disclosed by the invention, the head,hands, body and legs of a patient can be respectively positioned by virtue of each device, so that the patient lies on the side on the hospital bed and keeps a comfortable posture, influences on operative procedures are avoided, the operated leg can be moved in a multi-directional manner, an operation panel can be connected to control the movement of the leg, and a doctor is easy to operate. Moreover, the total hip is easily taken out, the operation efficiency is improved, the operative complications are decreased, and wide popularization is facilitated.

A slicing and bone removal device for a fish slicer comprises a fixture and a slicing device arranged above the fixture, wherein the fixture comprises two clamping pieces; the clamping pieces are articulated with fixing frames; arc push arms are arranged on the backs of the clamping pieces and linked with a motor; the slicing device comprises blades arranged on the left side and the right side, and a bone clamping fork arranged between the two blades; the slicing and bone removal device solves the problem that a live fish slicing and bone removal device is not available at present; and the slicing and bone removal device is simple and practical in structure and has a great market popularization value.

The invention provides a positioning device for bone drilling. The positioning device for bone drilling comprises a bone clamping device and a shifter; the shifter is used for shifting the bone clamping device; the shifter comprises a first support, a second support and a guide rail group; the bone clamping device comprises a first bone clamping plate and a second bone clamping plate; the first bone clamping plate and the second bone clamping plate are respectively and movably connected between the first support and the second support through the guide rail group; the first bone clamping plate and the second bone clamping plate are arranged in parallel; the first support and the second support are arranged in parallel; the first bone clamping plate is vertical to the first support and the second support; the second bone clamping plate is vertical to the first support and the second support. According to the positioning device provided by the invention, before bone drilling, accurate positioning is performed on a bone drilling position, and moreover, proper adjustment can be performed according to the specific position; the positioning device is simple in structure and convenient in operation.

Disclosed a multifunctional bone peg spin-out device comprises an inner screw and spin-out carrier. Wherein, the inner screw with screw thread outer has been mounted with a handle of inner screw; the lower end of spin-out carrier has bone-clamp claws while the inner surface of inner bone-clamp claw has anti-slip groove; the outer layer of screw has a screw muffle whose inner wall has inner screw thread and the outer wall has outer screw thread; the inner screw is screwed into the screw muffle which has be mounted with a handle of screw muffle; the spin-out carrier is connected with a nut into which the screw muffle is screwed; the lower end of inner screw has the blade of spin-out device whose end surface is in the straight shape or cross wing whose side surface has blade; the outer screw thread of inner screw is reverse to the outer screw thread of outer wall of screw muffle, to shorten the distance of run. The invention can be utilized to press the bolt and the side surface of blade of spin-out device has edge, therefore, it can clamp the bolt tightly to skid the screw which can be screwed out too.

The present disclosure is related to surgical devices, more particular it refers to a surgical clamp that attaches to a patient's bone to assist in surgical procedures. The surgical clamp is configured in such a manner that the clamping elements show a movement in a plane different from the plane of the actuator intended for opening and closing said clamping elements. As a result, the surgical clamp provides a broader working space to the surgeon when carrying out surgical work on the spine.