261 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.

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.

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 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.

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 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 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 invention provides a bone transport instrument, which comprises a head end fixer, a bone transport device, a bone transport device, a bone transport device and a bone transport device, and is characterized in that the head end fixer comprises a hydraulic cylinder; the guide rod is connected with a middle fixing device; the propeller is connected to the hydraulic cylinder of the head end fixer through a guide pipe; the two ends of the guide rod are connected with the head end fixers, and the guide rod is inserted into the hydraulic cylinder to form a hydraulic rod together with the hydraulic cylinder; the hydraulic cylinders at the two ends of the guide rod are connected to the two ends of the propeller through guide pipes correspondingly, and the propeller pumps hydraulic oil into the hydraulic cylinders through the guide pipes to push the guide rod to move. According to the internal traction mode, traction force does not need to be applied through an external fixing frame any more, it is avoided that too many kirschner wires are driven into limbs of a patient to fix sclerotin, the burden of the patient is relieved, wounds caused to the patient in the bone moving process are reduced, and therefore complications such as wound infection are further reduced.

The invention provides a skin retractor for an arc-shaped limb part, and relates to the technical field of medical instruments. The device mainly comprises a bent threaded rod, nuts assembled at the two ends of the bent threaded rod, a fixing hook slidably arranged on the rod in a sleeving mode, and a propelling mechanism composed of a first sleeve, a spring and a second sleeve. The fixing hook is designed in a split mode, an adjusting plate and a base are connected through bolts and nuts, and the height can be flexibly adjusted. A through hole is formed in the bottom of the base and used for allowing a kirschner wire to penetrate and be fixed. The propelling mechanism is driven by screwing the nut to move along the bent threaded rod, traction force is transmitted and quantified through the spring, and finally progressive traction on wound edge skin is achieved through the fixing hook. The device can perfectly fit an arc-shaped limb part, effectively solves the problems of poor fit, overlarge end point gap, inconvenience in height adjustment and the like of the existing straight rod retractor, and has the advantages of controllable traction force, high adaptability and simplicity and convenience in operation.

The invention relates to the technical field of orthopedic correction traction devices, in particular to an intelligent pneumatic orthopedic traction force regulation and control method and device.The intelligent pneumatic orthopedic traction force regulation and control device comprises a fixing frame, a traction assembly is arranged on the fixing frame and connected with a traction rope, the other end of the traction rope is connected with a traction bow, and a kirschner wire is arranged on the traction bow; when a medical worker increases the pulling force of the traction assembly on the traction bow, the traction bow can increase the tension on the two ends of the kirschner wire, and the kirschner wire is prevented from being bent; when a medical worker reduces the pulling force of the traction assembly on the traction bow, the traction bow can reduce the tension on the two ends of the kirschner wire, the problem that the service life of the kirschner wire is shortened due to the fact that the kirschner wire is stretched with large tension for a long time is solved, additional step-by-step operation is not needed, the clinical adjusting process is simplified, the operation steps of the medical worker are reduced, and the working efficiency is improved. The device is especially suitable for long-term treatment scenes requiring frequent fine adjustment of traction force.

1. The name of the design product: fixation device for orthopedics. 2. The use of the design product: Kirschner wire puncture fixation for fracture reduction treatment. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The application relates to the technical field of Kirschner wires, in particular to a Kirschner wire guiding and positioning device and a positioning method. The Kirschner wire guiding and positioning device is characterized in that the positioning guide pipe is divided into an inner guide pipe and an outer guide pipe, and a circular channel is arranged between the two guide pipes to insert an auxiliary positioning column, the posture of the positioning guide pipe is freely adjusted by adjusting the extension length of the auxiliary positioning column, correct guidance is provided for subsequent insertion of the Kirschner wire, and the difficulty of positioning is reduced because the traditional fixed structure of the Kirschner wire positioning device can only find a suitable positioning position by adjusting the posture of a doctor.

The invention discloses a proximal humerus fracture adjustable repositor, and relates to the field of orthopedic medical technology, the proximal humerus fracture adjustable repositor comprises a first main rod and a second main rod, one side of the surface of the first main rod is provided with an annular groove, and the interior of the annular groove is slidably connected with a sleeve in threaded connection with the surface of the second main rod; an adjusting assembly used for independently adjusting the kirschner wire in a three-dimensional mode is arranged outside the second main rod, and an anti-displacement assembly used for limiting the kirschner wire is arranged outside the adjusting assembly. The humerus reduction ring rotates in the mounting groove to enable the first threaded kirschner wire to achieve forward and backward inclination adjustment, the rotation angle of the humerus head relative to the backbone is adjusted through sliding of the first threaded kirschner wire in the adjusting groove, and three-dimensional adjustment of the first threaded kirschner wire is achieved through axial traction, forward and backward inclination angle adjustment and control of the rotation angle. Therefore, the resetting accuracy is improved.

A Kirschner wire positioning guide device for phalangeal fractures comprises a housing, wherein a first splint and a second splint are disposed opposite each other in the housing, a threaded hole is disposed in the top of the housing, a screw is disposed in the threaded hole, a knob is disposed at the upper end of the screw, a limiting structure is disposed between the lower end of the screw and the first splint, and a rotating pair in the circumferential direction is formed, a first through hole is disposed in the left side of the housing, a second through hole is disposed in the right side of the housing, an opening is disposed in the front side of the housing, two sliding rods are disposed in the openings, each sliding sleeve on the sliding rod is provided with a sliding cylinder, a bolt is disposed in the front side of each sliding cylinder, and a guide sleeve is hinged between the two sliding cylinders. The present invention can predict the direction of travel and the approximate insertion depth of the Kirschner wire in the phalange in advance by adjusting the position and angle of the guide sleeve, and the guide sleeve can effectively stabilize the entire insertion process of the Kirschner wire, preventing the Kirschner wire from sliding sideways on the bone surface and causing iatrogenic damage.

The invention discloses a kirschner wire positioning device for an Illis frame, and relates to the technical field of medical instruments, and the kirschner wire positioning device comprises a positioning frame which is used for being connected to an Illis frame ring and can be adjusted in the circumferential direction of the Illis frame ring and fix the relative position of the positioning frame and the Illis frame ring; the positioning frame is provided with at least one needle placing channel, and the needle placing channel is used for allowing a kirschner wire to penetrate through. According to the kirschner wire positioning device for the Illis frame, the needle placing efficiency is improved, and the operation time is shortened.

Positioning aid (6, 6') for freehand rotational osteotomy, wherein the positioning aid (6, 6') has two channels (13, 14, 13', 14') for receiving Kirschner wires (20, 21) which are arranged at a fixed angle (α, α') to each other, characterized in that the positioning aid (6, 6') has one or more implant plate connection means (9) for releasably fixing the positioning aid (6, 6') to an implant plate (1).

The invention provides a construction method of a personalized bone grafting guiding device for femoral neck fracture, which belongs to the technical field of digital medicine, and comprises the following steps: 1, three-dimensional reconstruction, 2, virtual reduction, 3, determination of bone grafting points, 4, determination of a bone attachment surface, using a 3-matic uniform offset tool to uniformly offset the extracted bone attachment surface to the outer side (i.e., the direction opposite to the bone surface) by 1-2 mm, and finally obtaining the personalized bone grafting guiding device for femoral neck fracture. 5, determining a bone grafting path, and 6, generating a kirschner wire sleeve based on the diameter of the kirschner wire so as to generate the bone grafting guider. Effective bony support is provided for the femur by attaching the attaching part to the rear side of the greater trochanter side of the femur of the patient, and the sleeve is guided through the generated kirschner wire. By using the bone grafting guiding device, a Kirschner wire can be accurately guided to a bone defect area, namely a bone grafting target area, in a femoral neck fracture closed reduction operation.

An elastic force adjustable kirschner wire stress applying mechanism comprises a main body frame assembly and a stress applying assembly. The main frame assembly comprises a main rod and a kirschner wire which are perpendicular to each other, and the kirschner wire penetrates through a connecting block A connected to the middle of the main rod in a sliding mode and slides relative to the main rod. The stress applying assembly is detachably installed between the front end of the main rod and the connecting block A and used for applying stress parallel to the main rod to the kirschner wire. As an important component of the intervertebral disc elastic compression stress applying device, the adjustable stress can be applied to the kirschner wire. The intervertebral disc elastic compression stress applying device is applied to the lumbar vertebra of a large animal, adjustable compression stress can be provided for the intervertebral disc, then change data of the intervertebral disc under the action of different compression stress is obtained, and a theoretical basis is provided for prevention and treatment of human intervertebral disc degeneration diseases.

The utility model relates to a guider for positioning a rotating shaft of an elbow joint hinge type external fixing support, which comprises a guider main body, a center hole is coaxially arranged in the guider main body, a kirschner wire can penetrate through the center hole, and a handle extending downwards and an extension arm extending towards the front side are arranged below the guider main body. The lower portion of the handle is provided with an arc-shaped handle tail end, the circle center of the handle tail end is provided with a circle center hole through which a kirschner wire can penetrate, and the outer side of the handle tail end is coaxially provided with a humeral capitulum adaptive circular ring. A humerus pulley supporting plate used for being matched with the inner side face of the humerus pulley is arranged at the front end of the extension arm, and the axis of the humerus pulley supporting plate coincides with the axis of the guider body. The utility model has the advantages that the design is simple and reasonable, the humeral capitulum center and the humeral tackle center can be conveniently determined, the operation is simple and easy to implement in an operation, a kirschner wire does not need to be placed under X-ray fluoroscopy, and the fluoroscopy frequency is reduced.

The utility model discloses a universal osteotomy guide plate for fixing ankle joint talus, which comprises a positioning osteotomy seat and a fixing component, a part of talus matching part is arranged on the bottom surface of a connecting block, and the top of the connecting block is connected with the fixing component; the first end of the first curved surface is located on the bottom face of the connecting block, the second end of the first curved surface extends towards the top of the connecting block, the first end of the second curved surface is connected with the second end of the first curved surface, and the second end of the second curved surface extends to the top of the connecting block and is connected with the fixing assembly. The first groove and the second groove are formed in the first curved surface and the second curved surface respectively; the first fixing block is arranged at the top of the connecting block, two first fixing holes are formed in the second end of the first fixing block, the first fixing holes penetrate through the first fixing block, the first kirschner wire penetrates through the two first fixing holes and is inserted into the talus, so that the talus is fixed, recycling of the osteotomy guide plate is achieved, and cost is saved.

The utility model provides a novel draw hook which comprises a draw hook body, the draw hook body comprises a long-arm draw hook, a short-arm draw hook and a shoulder connecting body, and the long-arm draw hook and the short-arm draw hook are connected in an L shape through the shoulder connecting body; the shoulder connecting body is provided with at least one group of kirschner wire positioning holes, and the extending direction of the kirschner wire positioning holes is parallel to the length direction of the short-arm drag hook. Or / and the extending direction of the kirschner wire positioning holes is parallel to the length direction of the short-arm drag hook, and the extending direction of all the kirschner wire positioning holes is located on the outer side of the body; through the double-end design of the retractor body, the long-arm retractor or the short-arm retractor can be selected according to the quantity of soft tissues; the Kirschner wire positioning hole is formed in the shoulder connecting body of the drag hook body, and during an orthopedic operation, after the drag hook is dragged to a preset position, a Kirschner wire is driven into the Kirschner wire positioning hole to fix the drag hook body on a bone substance, so that an operation assistant can be liberated, meanwhile, the number of operation instruments is reduced, and the operation is conveniently carried out.

The invention relates to the technical field of medical instruments, in particular to a fracture reduction kirschner wire fixing guider which comprises an outer sleeve, a handle is fixedly connected to the lower end of the outer sleeve, a movable rod is movably connected into the handle, and an adjusting assembly is arranged in the outer sleeve. Through the arrangement of the adjusting assembly, the trigger is indirectly pressed to drive the movable rod to move along the outer first movable groove, so that the abutting block at the front end of the movable rod is matched with the first reduction arm for clamping, the fixation of a fracture part is realized, the fracture reduction precision and the accuracy of selecting an inner fixing position are improved, and the operation is simple and convenient. The frequency of blind driving of the screw is reduced, and the treatment pain and economic burden of a patient are greatly relieved; through the arrangement of a limiting assembly, under the cooperation of a baffle, a second spring and third teeth, the movable rod is limited, the movable rod is prevented from moving, and the stability of the device is improved; and a universal structure is adopted, so that the medical cost is reduced, and the medical cost burden of a patient is relieved.