454 results about "Kirschner wire" patented technology

A bone fusion assembly includes a bone plate having a plurality of through openings extending therethrough. The through openings include at least one fusion screw opening sized to allow a screw guide to be at least partially inserted therein and a plurality of fixation screw through openings. The screw guide includes a body having a proximal end, a distal end, and a through-passage extending between the proximal end and the distal end. A K-wire a sized to extend through the through-passage in the body of the screw guide.

The present invention discloses a Kirschner wire bending device, comprising needle-nosed pliers, wherein two clamping pieces of the jaws of the needle-nosed pliers head clamp the Kirschner wire, one of the two clamping pieces of the jaws is a forming core block, the head of the needle-nosed pliers serves as a rotating axis, a contact of an outer sleeve for applying a bending force to the Kirschner wire rotates around the rotating axis, and the contact rotates toward the forming core block to bend the Kirschner wire clamped by the two clamping pieces around the forming core block. In the prior art, the pliers head is used to clamp the Kirschner wire first, and then another pair of pliers is used to bend it in the clamped state, which is time-consuming and labor-intensive. The present invention first uses the pliers head to clamp the Kirschner wire, which is in line with the usual clamping habits, and then uses a bending and scraping mechanism to move the Kirschner wire around the forming core block by a shifting block rotating around the rotating shaft to bend the Kirschner wire to form a required hook-shaped elbow. If the length of the Kirschner wire is appropriate after bending, the bending device is removed. If the length of the Kirschner wire is long after bending, continue to rotate to scrape the Kirschner wire off. During the scraping process, the Kirschner wire is always clamped; a limit groove is set on one side of the clamp to facilitate disengagement after bending and scraping; a ratchet wrench is set to save effort in the bending and scraping process.

Systems and methods for a customized reusable guide for shoulder replacements. In an example embodiment, a method comprises providing an alignment compass base, wherein the alignment compass base is configured to enable rotational orientation of a radial offset insert and a K-wire guide tube with respect to a guide base, inserting the guide base component into the alignment compass base, inserting the radial offset insert into the guide base component, rotating, using a first alignment tool, the radial offset insert to a first orientation angle with respect to the guide base component, inserting the K-wire guide tube into the radial offset insert, rotating, using a second alignment tool, the K-wire guide tube to a second orientation angle with respect to the guide base component.

The invention provides an ulna olecranon osteotomy guide plate, and relates to the technical field of medical instruments, the ulna olecranon osteotomy guide plate comprises a strip-shaped positioning plate, a fixing mechanism is mounted at the top of the strip-shaped positioning plate, an adjusting mechanism is mounted at the bottom of the strip-shaped positioning plate, a guide mechanism is mounted on the front side of the strip-shaped positioning plate, and the fixing mechanism comprises a positioning block; the positioning mechanism comprises a positioning block, protruding blocks are fixedly connected to the two sides of the positioning block, L-shaped first anti-disengaging blocks are fixedly connected to the positions, close to the top, of the two sides of the protruding blocks, first circular kirschner wire positioning holes are formed in the opposite side faces of the first anti-disengaging blocks in a penetrating mode, the adjusting mechanism comprises a moving block, and sliding adjusting blocks are fixedly connected to the two sides of the moving block; by means of the design, V-shaped osteotomy guiding can be effectively conducted on the ulna olecranon operation, and therefore the success rate of the ulna olecranon osteotomy operation is effectively guaranteed.

A retractor includes retractor blades and one or more shims coupled to one or more of the retractor blades. The shims can include features configured to fasten the shim to vertebral anatomy. Such features can facilitate the use a K-wire or barbed features. Example disclosed shim designs include those featuring a K-wire feature, a barbed feature, and a K-wire with barb design.

The present invention discloses an orthopedic external fixator, which relates to the technical field of medical devices, including a connecting ring, an adjustment mechanism and a Kirschner wire, wherein two connecting rings are arranged between the two adjustment mechanisms, and each adjustment mechanism includes: an extension rod mechanism; a lateral adjustment mechanism, wherein two lateral adjustment mechanisms are arranged at both ends of the extension rod mechanism, and the two lateral adjustment mechanisms are connected by a Kirschner wire; a rotational quick adjustment mechanism, wherein one end of the extension rod mechanism is provided with a rotational quick adjustment mechanism, and the lateral adjustment mechanism at one end of the extension rod mechanism is connected to the rotational quick adjustment mechanism, and the rotational quick adjustment mechanism is connected to one end of one of the connecting rings. The present application can realize the reduction and alignment of the bones at both ends of the fracture, and can realize the rotation of the bones, so that the angle of the bones can be adjusted, thereby correcting the deformity of the bones; secondly, the orthopedic external fixator of the present invention has strong stability, is easy to operate, and can realize rapid operation.

The invention relates to the technical field of orthopedic surgery, in particular to an orthopedic surgery tracer fixing device which comprises a base, a damping cover is fixedly connected to the surface of the base, two kirschner wire bodies are movably inserted into the base and the damping cover, a mounting groove is formed in the base, and the kirschner wire bodies are arranged in the mounting groove. A kirschner wire locking block is arranged in the center of the interior of the mounting groove, a bolt mounting block is movably connected to one side of the kirschner wire locking block, and a kirschner wire locking bolt is movably connected to one side of the bolt mounting block. The kirschner wire tracer is provided with a base, a kirschner wire body, a mounting groove, a kirschner wire locking block, a bolt mounting block, a kirschner wire locking bolt, a holder, a tracer body, an insertion hole, a movable groove, an adjusting rolling ball, an adjusting rod, a tightening seat, a tightening bolt, a second insertion groove, a positioning pin, a pressure spring, a snap spring and a thrust bearing. The device can be used for installing and fixing the tracer which is simple in structure, low in production and manufacturing cost, high in stability and not prone to damage.

A percutaneous targeting device comprises a body holding an extension. The body has a target guide holding a target pin which may be a K-wire. The extension has two guide sleeves, holding a guide wire. All wires are held in a common plane. The guide wires serve as a guide for cannulated fixation screws. The extension is movable against the body to adjust the angle between the target pin and the guide wires.

The utility model provides an anterior patellar depth limiting kirschner wire guider for patellar fracture reduction, and relates to the technical field of medical instruments. The anterior patellar depth limiting kirschner wire guider for patella fracture reduction comprises a first forceps handle, a second forceps handle, a parallel clamping assembly and a guide needle sleeve, the first plier handle and the second plier handle are connected through a parallel clamping assembly, and a first plier tip on the first plier handle and a second plier tip on the second plier handle are combined to form a C-shaped plier opening. The guide needle sleeve is arranged on the first forceps tip, a puncture part is arranged at the bottom of the guide needle sleeve, a puncture tip of the puncture part is close to the parallel clamping assembly, and the puncture tip of the puncture part is opposite to the tip end of the second forceps tip, so that the kirschner wire can avoid the second forceps tip when puncturing along the guide needle sleeve; the first plier handle and the second plier handle are each provided with a depth limiting rod, and the depth limiting rods face the C-shaped jaw. The technical effect that the kirschner wire withdrawing point can be determined is achieved.

The invention discloses a variable stiffness external fixing device for accelerating lower limb fracture healing, which comprises two oppositely arranged fixing rings, a plurality of support arms connected between the two fixing rings, and kirschner wires arranged inwards along the radial direction on the fixing rings, and is characterized in that the fixing rings are also provided with kirschner wire applied stiffness adjusting mechanisms. The rigidity change of the fixing end of the external bone fixing device can be adjusted, the structure is simple, adjustment is convenient and fast, and the rigidity adjusting requirements of different stages in the bone rehabilitation process can be better met.

The invention belongs to the technical field of minimally invasive surgery of patella fracture percutaneous closed reduction kirschner wire fixation, and provides a pair of double-claw patella reduction forceps with a guide hole, which comprises a first forceps handle and a second forceps handle, the first forceps handle is rotatably connected with the second forceps handle through a pivot, the first forceps handle is connected with a first upper pole claw and a second upper pole claw, and the second forceps handle is connected with a second upper pole claw. The second clamp handle is connected with a first lower pole claw and a second lower pole claw, and the first lower pole claw and the second lower pole claw are provided with threaded guide holes. The threaded guide holes are formed in the first lower pole claw and the second lower pole claw, a kirschner wire is drilled into a fracture block along the sleeves matched with the threaded guide holes in the operation process, the threaded guide holes have the auxiliary positioning effect on the penetrating position of the kirschner wire, the kirschner wire can be drilled into the accurate position of the fracture block more easily, other instruments are not needed, and the operation efficiency is improved. And the operation difficulty is reduced.

The present invention relates generally to a K-wire driver, particularly to a K-wire driver that interfaces with a drill equipped with a quick-connect mechanism, such as a surgical drill, and more particularly to a K-wire driver that is adapted to interface with a drill equipped with a quick-connect mechanism, such as a surgical drill, without changing modules on the drill or using a dedicated K-wire driver (i.e. with the same shaped interface engaging with the quick-connect for the K-wire as for the drill bit). Utilizing a K-wire mechanism with a quick-connect, with associated stabilization and concentricity, is desirable so that the same driver (e.g. surgical drill) with the quick-connect mechanism which can accommodate drill bits may likewise accommodate K-wire drivers of the present invention without removal of the quick-connect mechanism or module (the latter of which is required in all known present such models which interchangeably accommodate K-wire drivers vs. drilling), hence precluding the complexity (and need for reuse / re-sterilization) and associated cost of disposing what is typically a reused K-wire module / drill assembly.

The present utility model belongs to the technical field of orthopedic medical instruments. Provided is a subtrochanteric femoral V-shaped osteotomy device with extramedullary positioning. The device comprises: two V-shaped osteotomy modules, wherein the two V-shaped osteotomy modules are arranged in the same direction and are each provided with a position fixing hole member, each position fixing hole member fits with a Kirschner wire, and a V-shaped osteotomy slot is provided in a penetrating manner between the top and the bottom of each V-shaped osteotomy module; and a positioning assembly, which comprises a sliding rail, wherein an anti-slip member is provided at the bottom end of the sliding rail, a sliding groove is provided in the top of the sliding rail, two connecting rods are slidably connected in the sliding groove and are vertically arranged, a position measurement member is provided between each connecting rod and the sliding rail, and the two V-shaped osteotomy modules are detachably connected to the two connecting rods. The present utility model can adjust an osteotomy length on the basis of the condition of a patient, can improve the anti-rotation capability of an osteotomy part, and can improve the precision and ease of surgical operations.

An anchor has a straight centerline and straight splines extending radially while running parallel thereto. Splines extend radially from a core penetrated by a channel to fit over a K-wire guide, and axially along the length of the elongate, cylindrical core. The center line passes along the center of a lumen or channel of the hollow core, while the splines extend radially outward from, and axially along the length of the core except along a conical taper near a leading or point end of the anchor. Installation may be from a posterior access or a lateral-posterior access, each anchor fixing two bones in at least one, but usually two, degrees of freedom. Multiple anchors may fix in all six degrees of freedom (three degrees of freedom in translation along three mutually orthogonal axes, and three degrees of freedom of rotation about those same axes).

An external fixation K-wire clamp including an elongated channel arranged and configured to receive a K-wire. In some examples, the elongated channel is devoid of any predefined grooves so that a K-wire can be positioned anywhere along the length of the elongated channel and / or in various orientations. In addition, and / or alternatively, an exemplary method of use for treating a distal radius fracture is disclosed. The method enabling earlier hand / wrist therapeutics.

Bone plates for engaging bone members are described herein. The bone plates can receive one or more screws to secure the bone plates to an underlying bone member. The one or more screws can be inserted into bone plate holes that can be considered locking or non-locking. The bone plates described herein can have particular combinations of locking and / or non-locking holes. Additional bone plate holes can be used to accept sutures, K-wire, or other instrumentation.

The utility model provides a pair of special pliers for kirschner wires, which comprises a first handle and a second handle, the first handle comprises a first handheld part and a mounting part, and the second handle comprises a second handheld part; the bending assembly comprises a fluted disc, the fluted disc is arranged on the upper end face of the mounting portion through a central rotating shaft, a first plug pin used for mounting a guide shaft sleeve is arranged at the end of the central rotating shaft, a bending shaft sleeve fixed through a second plug pin is arranged on the fluted disc, and a shifting rod and a positioning pin are arranged on the second handheld portion. The bending assembly further comprises a plurality of supporting columns arranged on the installation part. And the cutting assembly comprises a first cutter block arranged on the first handheld part and a second cutter block arranged on the fluted disc. The kirschner wire clamp is suitable for kirschner wires of various specifications, simple to operate, time-saving and labor-saving.

The utility model discloses an adjustable skin drafting device which comprises a drafting assembly, a stretching assembly and a pair of kirschner wires. The drafting assembly comprises a drafting threaded rod, a first drafting sliding block is screwed to the left side of the drafting threaded rod in a threaded mode, a second drafting sliding block is further installed in the middle of the drafting threaded rod in a sliding mode, a drafting sleeve is inserted into the right side of the second drafting sliding block, and the drafting threaded rod is sleeved with the drafting sleeve in a sliding mode. A drafting clamping jaw is fixed to the lower end of the first drafting sliding block and the lower end of the second drafting sliding block, a drafting spring is further sleeved on the right side of the drafting threaded rod, a drafting knob is further screwed on the right side of the drafting threaded rod in a threaded mode, and the two ends of the drafting spring are connected with the corresponding sides of the drafting knob and the second drafting sliding block in an abutting mode respectively. The skin at the wound position can be conveniently folded, meanwhile, the discomfort caused by Kirschner wires to the skin can be effectively reduced, and the use requirement can be better met.

The present invention relates to an external fixation treatment device for distal radius fractures, belonging to the technical field of medical devices. It includes a fixing frame, which consists of two fixing seats. The two fixing seats are connected by a ball head. A connecting seat is slidably connected to the fixing seat. The connecting seat is connected with a Kirschner wire. A clamping groove is formed on the upper end face of the fixing seat. A protective cover is clamped on the connecting seat. The protective cover passes through the clamping groove and is clamped on the fixing seat. The protective cover covers the Kirschner wire protruding from the connecting seat, thus preventing the Kirschner wire from protruding from the connecting seat and catching other things, resulting in the movement of the Kirschner wire and affecting the recovery of the patient.

The invention discloses kirschner wire operating forceps, and belongs to the technical field of medical instruments. Comprising an operating forceps body and a bending and cutting unit, the operating forceps body is provided with a left forceps body and a right forceps body, and the left forceps body is hinged to the right forceps body; the bending and cutting-off unit is arranged at the jaw end of the left clamp body and comprises two connecting plates, a positioning disc and a pressure applying disc, the positioning disc and the pressure applying disc are rotationally installed between the two connecting plates, the positioning disc is fixedly connected with the left clamp body, and a cutting edge protrudes outwards in the circumferential direction of the positioning disc. According to the kirschner wire operating forceps, the problems that after a kirschner wire is bent, the position and angle of the kirschner wire are possibly changed, at the moment, the stability of the kirschner wire is difficult to guarantee, the situation that the cutting position is inaccurate easily occurs, and even the kirschner wire is possibly bent or shifted again when a single cutting tool is used for operation are solved; the operation complexity and risk are increased.

This invention relates to a novel P-approach endoscopic lumbar fusion surgery method, belonging to the field of lumbar fusion surgery technology. This method addresses the high risk of nerve injury and insufficient operational precision in existing endoscopic fusion techniques by proposing an improved solution. It utilizes Kirschner wires for positioning at the inferior articular process to establish a precise entry point avoiding the nerve root pathway; a visually guided circular saw is used throughout the endoscopic procedure to construct a safe triangular working channel directly reaching the spinal canal; under full endoscopic monitoring, a unilateral approach is used for bilateral spinal canal decompression, thoroughly removing diseased tissue and scraping the endplates until punctate bleeding occurs; a bone graft cannula with a curved tip is used to precisely implant the fusion device into the anterior region of the intervertebral space, restoring intervertebral height through a self-locking structure; finally, a universal pedicle screw is percutaneously implanted for fixation. This method reduces the risk of nerve injury, improves surgical safety and efficiency, and is suitable for patients with lumbar spondylolisthesis complicated by spinal stenosis.

The invention provides a split type kirschner wire and kit for an orthopedic surgery robot, and belongs to the technical field of kirschner wires. The split type kirschner wire comprises a front kirschner wire body used for puncturing bones and a rear kirschner wire body used for being connected with an end effector of the orthopedic surgery robot; the front kirschner wire body is detachably connected with the rear kirschner wire body. Compared with Kirschner wire bending operation in the prior art, after the split type Kirschner wire is driven into the human body, the front Kirschner wire body with the proper length can be obtained more conveniently and safely, the problem of positioning displacement or loss caused by excessive pulling of the Kirschner wire is solved, and the Kirschner wire is more convenient to use. After the front kirschner wire body is detached and separated, due to the fact that the connecting end of the front kirschner wire body is smooth and clean, follow-up balloon dilatation kyphoplasty or pedicle screw implanting operation is facilitated, operation risks are reduced, and related operation operations can be carried out more safely, more reliably and more conveniently.

The utility model provides a split type kirschner wire and a kit for an orthopedic surgery robot, and belongs to the technical field of kirschner wires, the split type kirschner wire comprises a front kirschner wire body used for puncturing bones and a rear kirschner wire body used for being connected with an end effector of the orthopedic surgery robot, the front kirschner wire body is detachably connected with the rear kirschner wire body. Compared with Kirschner wire bending operation in the prior art, after the split type Kirschner wire is driven into the human body, the front Kirschner wire body with the proper length can be obtained more conveniently and safely, the problem of positioning displacement or loss caused by excessive pulling of the Kirschner wire is solved, and the Kirschner wire is more convenient to use. After the front kirschner wire body is detached and separated, due to the fact that the connecting end of the front kirschner wire body is smooth and clean, follow-up balloon dilatation kyphoplasty or pedicle screw implanting operation is facilitated, operation risks are reduced, and related operation operations can be carried out more safely, more reliably and more conveniently.

The invention relates to a front sight laser aiming auxiliary device which is used for guiding a kirschner wire to present a point-shaped perspective shadow on a C-arm screen in an orthopedic operation, and belongs to the technical field of medical instruments. The device aims at solving the problems that in traditional Kirschner wire perspective point forming operation, repeated perspective depends on the experience of an operator, radiation exposure is large, and operation precision is difficult to guarantee. The device mainly comprises a front sight base which can be fixed on the surface of a receiver of the C-arm machine, wherein a ball head base is arranged in the center of the front sight base; and the ball head laser indicator is arranged on the base and is adjustable in laser direction. When in use, the perspective image is adjusted to the central position of the front sight on the screen by moving the metal point on the operating table. Installing a laser lamp, adjusting the laser lamp to irradiate on a metal point on an operating table, and screwing a nut to fix the position of the laser lamp at the moment. Therefore, a visible laser guide line coinciding with the path of the target X-ray beam is established. And an operator only needs to adjust the guide needle along the laser ray and place the guide needle, so that the guide needle can be stably developed in a point shape in a perspective image, and accurate and rapid screw guide needle placement is realized. The device is simple in structure, low in cost, intuitive in operation, capable of remarkably reducing intraoperative radiation and reducing dependence on experience of operators, and suitable for being used in hospitals of all levels to carry out precise orthopedic surgery under perspective guidance.

The invention belongs to the technical field of medical instruments, and relates to a temperature monitoring system and method based on a temperature measurement type kirschner wire. The multi-point temperature measuring optical cable is arranged in the length direction of the kirschner wire, so that the multi-point temperature measuring optical cable can obtain temperature data of the healthy side and the affected side of the limb while the kirschner wire plays the original functions of fixing the skeleton of the broken limb and the like, and inconvenience and possible influence on the limb caused by additional arrangement of a temperature measuring device are avoided. The detection receiving unit serves as an intermediate link and is connected with the multi-point temperature measurement optical cable and the data acquisition and analysis system. And the data acquisition and analysis system is used for receiving the temperature data transmitted by the detection receiving unit and carrying out temperature monitoring and early warning according to the temperature data. Medical staff are reminded to take corresponding measures in time, real-time and accurate monitoring of the blood supply state after the amputated limb replantation operation can be achieved, and the medical staff can recognize and process vascular crisis in time.

A personalized ankle osteotomy 3D printing guide plate comprises a 3D printing main body which is fixed to an operation part through a kirschner wire during use, and is characterized in that a guide hole penetrating through the main body and a plurality of positioning holes are formed in the main body, the guide hole is used for guiding the osteotomy cutting direction, the positioning holes are used for allowing the kirschner wire to penetrate through, and the 3D printing main body is designed through computer aided design; the inner side face of the main body of the guide plate is matched with the peripheral face of the tibia of the surgical site, personalized customization can be carried out according to the shape of the peripheral face of the tibia of the surgical site of a patient, a surgical auxiliary tool which is more suitable for the condition of the patient and is simple in structure is provided for the patient, and the guide hole can better guide operation of a doctor during surgery. The main body is fixed on the peripheral surface of the tibia through the positioning hole by using a kirschner wire, so that the main body can be more stably fixed on an operation part.

This application discloses a Kirschner wire chuck and a bone-powered drill, relating to the field of medical device technology. The Kirschner wire chuck includes a chuck body, a clamping assembly, a locking assembly, and a handle mechanism. The chuck body is connected to a bone-powered handpiece. The clamping assembly is rotatably mounted on the chuck body and has a cavity along its rotation axis. The cavity holds the Kirschner wire, and the end of the clamping assembly is drively connected to the output end of the bone-powered handpiece. The locking assembly is sleeved on the clamping assembly and moves along its rotation axis to clamp or release the clamping assembly. The handle mechanism is mounted on the chuck body and deflects from the beginning to the end of the clamping assembly, and is connected to the locking assembly. Gripping the handle mechanism and deflecting it moves the locking assembly toward the beginning of the clamping assembly, causing the clamping assembly to clamp the Kirschner wire. This Kirschner wire chuck facilitates single-handed operation for clamping or releasing the Kirschner wire, improving drilling efficiency.

This invention provides a wire traction assembly for treating phalanx avulsion fractures, relating to the field of biomedical engineering technology. The wire traction assembly for treating phalanx avulsion fractures includes: a sleeve having a first end, a bent portion, and a second end; an insertion hole on the first end and a threading hole on the second end; a Kirschner wire for insertion into the insertion hole; and a tension band wire for attachment to the threading hole. This application achieves reliable wire fixation through direct attachment of the tension band wire to the threading hole, rather than by hanging it on the bent end of the Kirschner wire as in traditional techniques. Because the threading hole is a completely closed structure, the tension band wire cannot slip out of the hole under stress, effectively avoiding the risk of the wire slipping off at the smooth end of the needle in traditional techniques.

The utility model discloses a guider for treating distal clavicle fracture with a belt carrier titanium plate, which relates to the technical field of medical instruments and comprises a sliding handle, a sliding groove is formed in the front of the sliding handle in a penetrating manner, and a coracoid fixing component is mounted in the sliding groove and used for being positioned on the outer side of the distal clavicle. The coracoid fixing assembly comprises a sliding connecting rod, one end of the sliding connecting rod is located in the sliding groove, and the other end of the sliding connecting rod is provided with a fixator positioning bottom foot. The guider is suitable for grassroots units, avoids large incision clavicle hook steel plate imbedding, ensures that the position of the guiding kirschner wire of the belt carrier titanium plate is accurate, and avoids damaging important visceral organs, blood vessels and nerves, so that the guider is more minimally invasive, and more convenient and safer to operate.