67 results about "Bone positioning" patented technology

A device for positioning a cutting guide with respect to a bone comprising a body forming the cutting guide or intended to be fixed to the cutting guide; a least two contact members intended to freely contact the bone; and adjustment means for individually varying the relative position of the body with respect to each contact member.

The present invention relates to a clamp, and, more particularly, to a clamp for securing the position of a bone anchor with respect to a longitudinal rod, preferably for use in the spine. The clamp may include a housing, a rod clamping assembly, and a bone anchor clamping assembly. The clamp preferably enables the longitudinal axis of the rod to be offset or laterally displaced from the longitudinal axis of the bone anchor. The rod clamping assembly and the bone anchor clamping assembly are preferably moveably coupled to the housing in order to provide increased flexibility to better accommodate the location and geometry of the longitudinal rod and to better accommodate bone positioning.

Presented is a preoperatively designed guidance tool for intraoperative use during bone or joint surgery wherein the guidance tool is specific to the anatomy of the patient being treated. The guidance tool comprises a body portion, a mating surface provided on the body portion for positioning the guidance tool on a corresponding registration surface of a patient's anatomy. The guidance tool further comprises at least one guide mechanism provided on the body portion for guiding a medical instrument at one or more preoperatively defined trajectories relative to a patient's anatomy. In the event of misalignment, the at least one guide mechanism is adjustable to alter the one or more preoperatively defined trajectories if necessary during intraoperative use. Also presented is a preoperative process for designing the guidance tool.

The present application relates to a system for navigation-assisted shoulder operations in which the humeral component is partially replaced with a prosthesis, comprising:

• • a first tracking unit which is configured to be fastened to a section of a bone which is to be removed during the operation;
  • a detection unit which is configured to detect landmarks on the bone;
  • a second tracking unit which is configured to be attached to another section of the same bone;
  • a camera unit which simultaneously detects the first and second tracking unit, in order to determine their respective location; and
  • a computational unit which is connected to the camera unit and is configured to:
    • determine a first relative location of the landmarks relative to the first tracking unit from data acquired by means of the detection unit; and
    • calculate a second relative location of the landmarks relative to the second tracking unit on the basis of the first relative location;

such that additional navigated treatment apparatuses can be exactly positioned during the operation by referring to the second tracking unit.

A method for positioning a bone cut on a bone may involve: coupling a bone cut positioning apparatus with a body bone; adjusting the positioning apparatus in a varus/valgus orientation relative to the body bone; adjusting the positioning apparatus in an anterior/posterior orientation relative to the body bone; and adjusting the positioning apparatus up or down to select a bone resection level.

The invention provides a thighbone positioning method of robot full-knee joint replacement. First, abstract the problem to determine the center of thighbone into a geometric model to find the sphere center according to the known point on the sphere, combine three arbitrary points according to the collected spacing-socket central data of the thighbone, determine the coordinate information of the thighbone center by numerical calculation, then build the thighbone reference frame, then make the vectors on coordinate axes of three thighbone reference frame in the robot reference frame and ones on three coordinate axes of the robot reference frame compose a one-to-one relationship, and thus, find and build the corresponding relationship of the robot and thighbone reference frames, which accurately positions the thighbone.

A method for positioning a bone cutting guide on a tibia may begin with coupling a bone cut positioning apparatus with a tibia. The method may also include adjusting the positioning apparatus in a varus/valgus orientation to shine a light emitted by a light emitter approximately along a midline of an anterior surface of the tibia, swinging a pivoting arm about a pivot joint to direct the emitted light along a medial surface of the tibia, adjusting the positioning apparatus in an anterior/posterior orientation to shine the light approximately along a midline of the medial surface, contacting a stylus with a proximal end of the tibia to select a cutting depth for a bone cut to be made on the tibia, and attaching the bone cutting guide to the tibia in a position determined by the positioning apparatus.

The invention discloses a whole-body bone imaging bone segmentation method based on atlas registration. The method comprises the following steps: acquiring original whole-body bone imaging data collected by professional equipment; subjecting the original whole-body bone imaging data to preprocessing including pollution detection processing, pollution repair processing, standardization processing,registration processing and regularization processing; and according to a deformation segmentation template stored in the system, carrying out segmentation processing on the preprocessed whole-body bone development image to obtain a segmentation result of whole-body bone development. By means of the method, bone positioning can be conducted on an image obtained through single whole-body bone scanning examination, a basis is provided for bone lesion positioning, development quality is improved by automatically reducing a difference through bone development pollution detection and a pollution repair algorithm, and the development difference between different whole-body bone scans is solved; and rapid, accurate and intelligent positioning of the whole-body bone imaging skeleton is achieved.

A device (400) for positioning a bone cutting guide (432) on a tibia may- include a tibial attachment member (402) including a varus/valgus adjustment member (406), an anterior/posterior adjustment member (408), and at least one aperture for coupling with a pin inserted into the tibia. The device may also include a stationary arm (410) fixedly attachable to the tibial attachment member (402) at one end and extending to a pivot joint (412) at an opposite end. Further, the device may include a pivoting arm (414) movably attached at one end to the stationary arm (410) at a pivot joint (412). The device may also include a light emitter (416) attachable to the pivoting arm (414). A depth selection member (424) movably coupled to the stationary arm (410) and configured to removably attach to the bone cutting guide (432) can also be included in the device. A stylus (426) removably attachable to the bone cutting guide (432) can also be part of the device.

The invention relates to a comprehensive automatic bone adjustment fixing support used by a doctor in the department of orthopedic surgery and belongs to the technical field of medical apparatuses and instruments. The comprehensive automatic bone adjustment fixing support comprises a U-shaped clamping device body, an extensible rotary mechanical arm and an internally-buckled connecting sleeve and is characterized in that a reinforcing plug moving hole is formed in the U-shaped clamping device body, a reinforcing stud is arranged in the reinforcing plug moving hole, a reinforcing plug is arranged on the lower side of the reinforcing stud, a parallel force exerting connecting plate is arranged on the reinforcing stud, and a rotary positioning hole is formed in the parallel force exerting connecting plate. The comprehensive automatic bone adjustment fixing support is complete in function and convenient to use and is capable of saving time and labor, scientific, quick and convenient to use, safe, efficient and flexible in use when conducting local bone positioning and fixing on a patient in the department of orthopedic surgery, and the working difficulty of medical workers is reduced.

The invention provides a human skeleton modeling method, a storage medium and electronic equipment, and aims to solve the problem that a human skeleton three-dimensional model mentioned in the background art is inconvenient to analyze. The modeling method comprises the following steps: firstly, acquiring a skull six-view reference surface through a skull three-dimensional model; taking the skull six-view datum plane as a datum to determine six-view datum planes of other skeletons except the skull in the human skeleton; determining a skull positioning rectangular body through the skull six-viewdatum plane, determining a bone positioning rectangular body through six-view datum planes of other skeletons except the skull, and converting complex human skeletons into regular rectangular bodiesto be expressed, so that the relative position relation between different skeletons is analyzed to infer human body lesion reasons.

The invention belongs to an instrument for wound anastomosis and particularly discloses a minimal invasion heel tendon fixing anastomat which comprises a calcaneal bone positioning group and a heel tendon positioning group, wherein each of the two positioning groups comprises U-shaped rings, a main connecting rod, a universal fixing screw cap and a fixing needle; the fixing needle is fixedly connected with the U-shaped ring through the universal fixing screw cap; U-shaped rings in the same positioning group are connected by the main connecting rod under the action of the universal fixing screw cap; and different positioning groups are fixedly connected by an auxiliary connecting rod. With the adoption of the minimal invasion heel tendon fixing anastomat, the connection stability of the broken end of the heel tendon wound is improved, the blood supply to the heel tendon is not damaged, and the infection of suture line and rejection are avoided.

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

The invention discloses a shoulder joint scapula glenoid bone positioning device. The shoulder joint scapula glenoid bone positioning device comprises a positioning rod and a Kirschner wire sleeve, wherein the positioning rod comprises a first cylindrical segment with a through hole and a second segment, the first segment is used for sleeving the Kirschner wire sleeve, the second segment is an elongated positioning arm extending from the first segment linearly, a positioning hook is arranged at the end of the second segment, and the through hole of the first segment is over against the positioning hook, so that a scapula glenoid bone positioning space is formed between the first segment and the positioning hook. The shoulder joint scapula glenoid bone positioning device solves the problem that shoulder arthroscopy surgery is prone to causing scapula glenoid tunnel positioning inaccuracy and tunnel establishment blindness.

The invention provides a method for producing a personalized pre-perforated guide plate. The method comprises the following steps: 1) scanning an implantation affected area, and obtaining the surfaceform parameters of the alveolar bone of a missing tooth and its adjacent teeth; 2) reconstructing an implantation affected area model in a three-dimensional manner, selecting the alveolar bone positioning segment area and adjacent tooth positioning segment areas, which need to be covered with a guide plate, on the surface of the implantation affected area model, and performing stretching to obtaina guide plate model; 3) intruding a dental implant model into the alveolar bone part in order to be overlapped with the guide plate model, and carrying out stretching removal on the overlapping areaon the guide plate model to form through holes in order to obtain a surgical guide plate model; and 4) carrying out integrated 3D printing on the surgical guide plate model by an SML technology. The using position is determined according to the distribution conditions of the alveolar bone of the implanted area of a patient, and the adjacent teeth thereof, and pre-perforation is carried out to finally complete the personalized design and manufacturing, so the fit degree of the guide plate and a human body is high, thereby the positioning function is improved.

The invention discloses a garment hem side seam automatic bone position inverting device. The device comprises a sewing machine, a first stepping motor, a second stepping motor, a fixing seat and a base, the first stepping motor and the second stepping motor are separately mounted on both sides of the sewing machine, a pressing block fixing plate is fixedly mounted on the side surface, facing thesecond stepping motor, of the upper end body of the sewing machine by a screw, one side of the pressing block fixing plate is provided with a pressing block double bar cylinder which is vertically downward, the bottom end of a telescopic end of the pressing block double bar cylinder is fixedly connected with a pressing block transition plate, one end surface, facing the outer side of the sewing machine, of the pressing block transition plate is provided with a pressing block, and the pressing block is placed above a plane of a sewing machine body. The garment hem side seam automatic inverted bone positioning device achieves that all the bones in the dead corner are inverted in another direction, saves labor and improves efficiency. The fully automated bone inverting sewing greatly improvesthe sewing speed and quality, and the safety is high.

The invention discloses an ultrasonic-guided percutaneous puncture bone positioning device, comprising a puncture positioning needle and an ultrasonic puncture cannula, wherein the ultrasonic puncturecannula is an internal hollow cylindrical structure, and a positioning needle tunnel for puncture positioning needle to pass through is arranged inside the ultrasonic puncture cannula; At that frontend of the position needle tunnel, a positioning needle tunnel outlet is arranged, and at the rear end, a positioning needle tunnel inlet is arrange. A lingual arc-shaped ultrasonic probe is arrange at that front end of the ultrasonic puncture cannula, and the tunnel outlet of the positioning needle is locate at the head end of the lingual arc-shaped ultrasonic probe. The tongue-shaped arc-shapedultrasonic probe is provided with an electrode, and the tongue-shaped arc-shaped ultrasonic probe is provided with a lead assembly for transmitting information to an external host. By arranging an ultrasonic probe at the arc-shaped head end of the puncture cannula, real-time ultrasonic image data can be provided for the direction of the puncture needle when the puncture cannula is positioned withminimal trauma, so that the puncture needle avoids structures such as important nerves and blood vessels, avoids damage of the puncture aimed at important structures in the process of bone puncture positioning, and is simple in operation and more accurate in positioning at the same time.

The invention relates to a mandible body bone movement kit based on mandible three-dimensional database matching. The mandible body bone movement kit comprises a mandible osteotomy guide plate, a fibula osteotomy guide plate, a transplanted bone positioning guide plate and a titanium plate, the transplanted bone positioning guide plate comprises a C-shaped supporting part used for supporting and positioning a mandible area formed by splicing fibula sections and locking parts arranged on the two sides of the C-shaped supporting part and used for being fixed to the mandible. A positioning groovematched with each fibula section is formed in the upper side face of the C-shaped supporting part, and a nail hole is formed in each locking part. The invention aims to provide the mandible body bonemovement kit based on mandible three-dimensional database matching and a preparation method of the mandible body bone movement kit. The mandible body bone movement kit has the advantages that a three-dimensional model matched with a mandible model database is used as the reference of a missing part of the mandible of a patient, the postoperative facial deformity of the patient can be prevented, and the oral jaw system function and natural appearance of the patient are guaranteed.

A process for creating a curved contour on or within a bone is provided, where the process includes positioning a bone of a patient in a fixed position in a coordinate system, generating scan data of the bone, creating a three-dimensional surface model of the bone based on the scan data, generating a cutting program to modify a surface of the bone based on the three-dimensional surface model and a prosthesis having a bone interface shape that is complementary to the curved contour, and modifying the bone with one or more curved blades or a curved drill bit that is robotically driven and positioned with the cutting program to form the curved contour. A system for creating a curved congruent contour on or within a bone for mounting a prosthesis is also described.

A bone plate comprises a skeleton positioning part. The skeleton positioning part is provided with a skeleton positioning surface in a shape matched with the shape of a to-be-jointed part and an uppersurface which is opposite to the skeleton positioning surface; insertion arms are arranged at the two ends of the skeleton positioning part, the insertion arms extend in opposite to the upper surfaceand used for inserting a to-be-jointed bone. In use, the shape of the skeleton positioning part is matched with that of the to-be-jointed part so as to make the skeleton positioning surface attachedto the to-be-jointed part; the insertion arms at the two ends of the skeleton positioning part are inserted and clamped into the to-be-jointed bone so as to make the bone plate fixed to the to-be-jointed bone; the insertion arms at the two ends apply clamping pressure on the to-be-jointed part, and the to-be-jointed part can heal gradually due to the clamping pressure. Compared with the prior art,the to-be-jointed bone is inserted by using the insertion arms so that the immobilization effect between the bone plate and the to-be-jointed bone can be enhanced, and the bone plate is not likely toslide on the to-be-jointed bone or fall off from the to-be-jointed bone.