117 results about "Kirschner wire" patented technology

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.

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 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.

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).

1. The name of the design product: bending device (elastic intramedullary nail kirschner wire). 2. The use of the design product: for bending of kirschner wire. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

Systems for treating bone fractures are disclosed. Exemplary systems may include a backpack and one or more bone plates for engaging bone members. The backpack may be configured to be temporarily attached to the bone plate in order to provide trajectories for fasteners received by the bone plate. 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 a device for accurately drilling an individualized steel needle into bone tissue and an operation method of the device, and relates to the technical field of orthopedic surgical instruments. The inner side of the guide plate is attached to the tibia, and a positioning part is arranged at the bottom of the guide plate; a guide sleeve; the auxiliary positioning frame is in a horseshoe shape and comprises a first positioning frame and a second positioning frame, a guide block is arranged at one end of the first positioning frame, the other end of the first positioning frame is connected with one end of the second positioning frame, a positioning hole is formed in the other end of the second positioning frame, the guide block is used for being inserted into the guide sleeve, and a first needle hole is formed in the guide block; the auxiliary rod is used for being inserted into the positioning hole, and a second needle hole is formed in the auxiliary rod; provided is a kirschner wire. The device can accurately drill a steel needle at a predetermined part of bone tissue at one time, so that the operation time is saved, tissue wounds are reduced, the risk of operative complications is reduced, and the operation efficiency is improved.

The present application relates to the technical field of orthopedic correction traction device, and specifically provides an intelligent pneumatic orthopedic traction force regulation method and device, which comprises a fixing frame, a traction assembly is arranged on the fixing frame, the traction assembly is 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 medical staff increases the pulling force of the traction assembly on the traction bow, the traction bow will increase the tension on both ends of the kirschner wire, so that the kirschner wire is prevented from being bent; when the medical staff reduces the pulling force of the traction assembly on the traction bow, the traction bow will reduce the tension on both ends of the kirschner wire, so that the problem of reduced service life caused by the kirschner wire being stretched under a large tension for a long time is avoided; no additional step-by-step operation is needed, the clinical adjustment process is simplified, the operation steps of medical staff are reduced, the work efficiency is improved, and the device is especially suitable for long-term treatment scenarios that require frequent fine adjustment of traction force.

An improved surgical system and procedure for correcting a deformity between first and second bones using an alignment guide based on a correction factor. The correction factor can be based on a virtual model of the first and second bones in a deformed configuration and a corrected configuration. In the virtual corrected configuration, first and second virtual axes can be fixed in the respective first and second bones. When reverted to the virtual deformed configuration, the orientation of the first and second axes can be used to determine the correction factor. The alignment guide is used to insert one or more k-wires into each of the first and second bones in a deformed configuration. A correction guide is passed along the k-wires to rotate and / or translate the first bone relative to the second bone into the corrected configuration.

The utility model discloses an orthopedics operation robot auxiliary direction improvement device. The device whole is a metal round pipe of one both -end part is thicker, and the middle segment is thinner, and its one end far from human body is called as the distal end, and the end of distal end is integrally connected with the direction stop portion that is wider than the outer diameter of distal end, to fix the mobile tracer of inserting and connecting, and its one end close to human body is called as the proximal end, and the direction improvement device is set up a circular channel that is through the distal end, the proximal end from the middle of the direction stop portion, and the Kirschner wire can be accommodated through the circular channel, the circular channel of the middle of the direction stop portion can make the mobile tracer in the robot auxiliary system insert therein, and the center line of circular channel and the center line of mobile tracer in the robot auxiliary system keep on the same straight line when inserting. The direction improvement device can play the technical effect of accurate driving locking nail.

The application discloses a Kirschner wire bending device, which comprises left and right clamping blocks for clamping the Kirschner wire, and can be in the shape of a strip. The lower end of the left clamping block and the lower end of the right clamping block are rotationally connected, and the position of the rotationally connected part can be thickened to be in the shape of a pie, which is convenient for connection. A support plate extending to the lower right is connected to the lower end of the left clamping block, and a left clamping arm extending to the lower left is connected to the lower end of the right clamping block. The left and right clamping blocks are used for clamping the Kirschner wire, so that the Kirschner wire is prevented from sliding, and at the same time, force is applied from the lower side, so that the fractured block is prevented from being stressed when being bent. The device further comprises a rotating mechanism arranged on the left clamping block and capable of rotating the Kirschner wire to the left when the left clamping block rotates, and a right clamping arm mechanism rotationally connected to the end of the support plate. When the right clamping arm mechanism rotates to the left, the rotating mechanism is driven to rotate to bend the Kirschner wire. The rotating mechanism drives the upper end of the Kirschner wire to bend, and the left and right clamping blocks prevent force from being applied to the lower fractured block when being bent.

The application provides a surgical path recognition method, device and equipment of a Kirschner wire and a storage medium. The method comprises the following steps: acquiring a surgical image containing the Kirschner wire, extracting an image region where the Kirschner wire is located from the surgical image, detecting a linear structure existing in the image region where the Kirschner wire is located according to gradient information of pixel points in the image region where the Kirschner wire is located, determining a tip corner point of the Kirschner wire and boundary line segments on both sides of the tip corner point according to slope information of the linear structure, determining a center line of the Kirschner wire according to the tip corner point and the boundary line segments on both sides of the tip corner point, and taking a straight line where the center line is located as a surgical path of the Kirschner wire. The application can automatically plan a surgical path of the Kirschner wire, provide accurate path guidance for insertion of the Kirschner wire, ensure that the Kirschner wire reaches a target position according to a predetermined path, reduce a risk of a surgical time and peripheral tissue damage, and improve safety and efficiency of surgery.

The utility model discloses a split tibial tubercle osteotomy guide plate, its characterized in that, including: tibial tubercle osteotomy guide plate, four oblique kirschner wires, handle pole, handle pole is installed tibial tubercle osteotomy guide plate, tibial tubercle osteotomy guide plate is equipped with four through -hole, and one oblique kirschner wire is inserted in each through -hole, tibial tubercle osteotomy guide plate still is equipped with a osteotomy groove, the utility model has simplified the surgical operation step, convenient to use, has extensive clinical application value.

The utility model discloses a lateral malleolus reconstruction osteotomy guide plate based on 3D printing, which belongs to the technical field of medical instruments and comprises a guide plate body. Through the arrangement of a fixing assembly, a first horizontal positioning groove, an indicating groove, a first inclined positioning groove, a first kirschner wire hole, a second horizontal positioning groove, a second inclined positioning groove, a second kirschner wire hole and a third kirschner wire hole, the first horizontal positioning groove, the first inclined positioning groove, the second horizontal positioning groove and the second inclined positioning groove cooperate with one another; a positioning surface can be provided for proximal fibula cutting, an osteotomy starting plane can be conveniently positioned by naked eyes in an operation through the indication groove, and then the proximal fibula can be fixed under the action of the fixing assembly, the first kirschner wire hole, the second kirschner wire hole and the third kirschner wire hole so as to ensure the stability of osteotomy. Therefore, a more stable and standard osteotomy environment is provided for fibula near-end wedge-shaped osteotomy, and stability, reliability and accuracy of osteotomy are ensured.

The utility model discloses a minimally invasive guider for scaphoid fracture, and relates to the technical field of medical instruments. The base is arranged on the wrist and palm side of a patient, one side of the base extends outwards to form side wings, a channel is formed in the middle of the base in the length direction in a penetrating mode and used for containing kirschner wires, and the base is made of transparent materials; the number of the fan-shaped clamping plates is two, the two fan-shaped clamping plates are symmetrically arranged on the base relative to the axis of the through hole, one side edge of each fan-shaped clamping plate coincides with the upper surface of the base, the fan-shaped clamping plates are perpendicularly and fixedly connected with the base, and scale marks representing the included angle between the fan-shaped clamping plates and the horizontal plane of the base are arranged on the fan-shaped clamping plates. The sleeve is arranged between the two fan-shaped clamping plates, the sleeve is in sliding connection with the two fan-shaped clamping plates through fixing blocks, the sleeve always points to the circle centers of the fan-shaped clamping plates in the axial direction in the sliding process, marking lines are arranged on one side of the sleeve and used for contrasting scales on the fan-shaped clamping plates, and a kirschner wire guider is arranged in the sleeve along the axis of the sleeve.

The utility model discloses an intramedullary needle for treating fracture and convenient to hold, which is provided with a treatment section and a holding section for operating and holding, and a positioning structure for holding and positioning is further arranged on the holding section. The intramedullary needle conforms to tubular bone biological fixation, the treatment section can be effectively prevented from rotating in the surgical treatment operation process through the holding section, the penetration depth and path of the treatment section can be further accurately controlled, the treatment accuracy is improved, and the treatment duration is shortened. When the intramedullary needle is used in the treatment process of metacarpal bone fracture, further damage to fracture local hematoma and periosteum can be avoided through closed reduction, blood supply of sclerotin is protected, and fracture healing is facilitated. The intramedullary needle is small in trauma, small in wound scar and beneficial to attractiveness; intramedullary fixation retains the minimally invasive characteristic of kirschner wire fixation, and the fixing effect is more stable and lasting than that of a kirschner wire, and the articular surface is not damaged.

An implant insertion tool or tools interact with a user interface provided by a computer to guide the operator to insert the implant at a desired location and trajectory. The user interface may guide an operator through a registration process, a process for positioning the tip of the implant at the desired location, and a process for aligning the implant to have the desired insertion trajectory. The implant may be a medical implant such as a K-wire that is inserted into a bone, such as the glenoid of a scapula during shoulder arthroplasty or reverse arthroplasty.

The utility model discloses a pair of kirschner wire shaping scissors. The pair of kirschner wire shaping scissors comprises a base, a shearing rod B and a bending part B, a positioning shaft is arranged on the surface of the base, a connecting block is hinged to the surface, located on the surface of the positioning shaft, of the base, and a shearing rod A is connected to one side of the connecting block; the shearing rod B is hinged to the surface of the positioning shaft and located on the surface of the connecting block. Through the specially designed shearing rod A, the shearing rod B, the bending part A, the bending part B and the bending part C on the shearing rod A, the shearing rod B and the bending part C, the kirschner wire can be accurately sheared, bent and sheared, the shaping efficiency and precision of the kirschner wire can be effectively improved, and different use requirements are met; the shearing rod A and the shearing rod B can be automatically rebounded to the initial positions after operation through a torsional spring in the rebounding mechanism, convenience and rapidness are achieved, the working efficiency is improved, and meanwhile the labor intensity of a user is reduced; a positioning structure composed of the rotating shaft, the limiting piece and the bolt can be used for limiting movement between the shearing rod A and the shearing rod B.

The application discloses a positioning guide and an additive manufacturing method thereof. The positioning guide is used for hip arthroplasty and comprises a positioning base, a main guide structure and first and second guide piles arranged on both sides of the main guide structure. The positioning base comprises first and second fitting parts respectively fitted with local bony surfaces on both sides of a patient's acetabular notch and a connecting part connecting the first and second fitting parts. The main guide structure is arranged on the connecting part and has a guide channel for accommodating a handle of a surgical tool to exert geometric constraint on a placement direction of an acetabular reamer tool. The guide channel is determined according to an acetabular cup designed to a target anatomical position and a simulation handle arranged in association with the acetabular cup. The first and second guide piles are used for guiding the arrangement of Kirschner wires to fix the positioning guide to the acetabular region of the patient, thereby improving the accuracy and stability of acetabular polishing and acetabular cup implantation.

The invention discloses a fibula far-end downward-moving single-arm external fixing device, and relates to the technical field of orthopedic external fixing frames, the fibula far-end downward-moving single-arm external fixing device comprises a first fixing assembly and a second fixing assembly, the first fixing assembly comprises a first fixing frame, an upper sliding clamping block, a first kirschner wire, a lower sliding clamping block and a second kirschner wire, the first fixing assembly comprises a first fixing frame and a first kirschner wire, the upper sliding clamping block and the lower sliding clamping block are arranged on the first fixing frame in a sliding mode and locked through a locking device, the first kirschner wire penetrates through the upper sliding clamping block to be fixedly connected with the proximal tibia end or the proximal fibula end, and the second kirschner wire penetrates through the lower sliding clamping block to be fixedly connected with the distal fibula end; the second fixing frame is fixedly connected with the first fixing frame, the third kirschner wire penetrates through the second fixing frame and is fixedly connected with the far end of the fibula of the patient, and the second kirschner wire and the third kirschner wire form an included angle and are located in different planes. The fixing effect of the fibula far-end downward-moving single arm is good, and fixation can be conducted from multiple aspects.

The utility model provides a shoulder glenoid kirschner wire positioning tool, which solves the problems that most of the existing kirschner wire positioning structures are slotted, the kirschner wire can only be adjusted in one direction, and the positioning is inaccurate due to rotation deviation and the like in the slot, and adopts the main scheme that the shoulder glenoid kirschner wire positioning tool comprises a handle and a kirschner wire, a positioning piece is fixed at the tail end of the connecting rod and comprises at least one welding part and a plurality of kirschner wire positioning holes, the tail end of the connecting rod is fixedly connected with the welding part, the kirschner wire positioning holes are laid at equal intervals, and an acute angle is kept between the axis of each opening and the axis of the connecting rod; and the kirschner wire can be inserted and limited in each kirschner wire positioning hole.

This utility model discloses a nerve root retractor for UBE surgery, relating to the field of auxiliary instruments for minimally invasive spinal surgery. In lumbar discectomy, there are shortcomings in the procedure where an assistant must hold a nerve retractor to retract the nerve during disc removal, which is not always secure and can easily lead to operator fatigue. Improper operation can also easily cause nerve root damage to the patient. This utility model provides a nerve root retractor for UBE surgery, including a Kirschner wire with a retractor plate near its front end and a handle at the upper end. The Kirschner wire includes a pointed portion and a straight rod portion, with the retractor plate positioned near the pointed portion of the straight rod portion. The handle includes a vertically positioned operating rod and a positioning rod, with the positioning rod aligned along the axial direction of the Kirschner wire. A positioning block is provided on the positioning rod.

The application provides a construction method of a femoral neck fracture personalized bone grafting guide, and belongs to the technical field of digital medicine, and comprises the following steps: 1, three-dimensional reconstruction; 2, virtual reduction; 3, determining a bone grafting point; 4, determining a bone attachment surface; using the uniform offset tool of 3-matic, the extracted bone attachment surface is uniformly offset by 1-2 mm to the outside (namely, in the direction opposite to the relative bone surface), a fitting part is generated; 5, determining a bone grafting path; 6, generating a Kirschner wire sleeve based on the diameter of the Kirschner wire, and further generating a bone grafting guide. The application realizes effective bone support for the femur by attaching the fitting part to the back of the greater trochanter side of the femur of the patient, and generates a Kirschner wire guide sleeve. By using the bone grafting guide, the Kirschner wire can be accurately guided to the bone defect area, namely the bone grafting target area, in the closed reduction surgery of the femoral neck fracture.

A targeting guide is disclosed includes a handle extending substantially along a longitudinal axis. The longitudinal handle defines one or more burr holes extending from a first side of the handle to a second side of the handle. A head is coupled to a distal end of the longitudinal handle. The head defines a plurality of guide holes sized and configured to receive a k-wire therethrough.