14 results about "Rotational alignment" patented technology

A method includes displaying, on a graphical user interface, a planned position of a virtual implant model relative to a virtual bone model of a bone. The virtual implant model includes a plurality of virtual screw holes offset from a central axis of the virtual implant model. The method also includes determining a planned rotational orientation of the virtual implant model by rotating, on the graphical user interface, the virtual implant model about the central axis of the virtual implant model such that the plurality of virtual screw holes rotate about the central axis. The method also includes controlling a robotic device to guide preparation of the bone to receive a physical implant in the planned position. The method also includes providing computer-assisted navigation configured to guide the physical implant into physical rotational alignment with the planned rotational orientation of the virtual implant model.

A capsule of a delivery system for a transcatheter heart valve prosthesis includes markers for rotationally orienting the capsule within a native valve. The capsule includes markers that are sized and located on the capsule such that when viewed in a cusp overlap viewing angle image, the markers indicate whether the capsule is in a desired rotational orientation. Methods for rotationally aligning a capsule of a delivery system containing a transcatheter heart valve prosthesis within a native valve are also provided.

A balancer assembly (100) for a talar cut is provided. The assembly (100) includes a spreader (110) having a distal end, a balancer releasably attachable to the distal end of the spreader (110), and a rotational aligner (130) releasably attachable to the spreader (110). An alignment block (141) is attached to the rotational aligner (150); and a tibial aligner (130) is attached to the alignment block (141).

An assembly comprising an abutment and gingival healing cuff. The gingival healing cuff fits over the abutment, wherein the cuff includes internal surfaces (e.g., at least one flat face, and at least one curved face) corresponding to the external surfaces of the abutment, so as to mate with one another. The gingival healing cuff can further include a rectangular box or other timing alignment structure positioned apical to a buccal alignment body, which serves as a buccal alignment marker once the buccal alignment body is removed, and which can aid in helping the practitioner know where the implant platform and abutment platform are located (even when hidden). Flowable composite, e.g., of a different color, can be placed into the rectangular box or other timing alignment structure to aid in identification of the buccal surface of the cuff and proper rotational alignment ("timing") of the abutment with the implant.

The present invention relates to a torque connector device for an osseointegration prosthetic limb (OPL) system. The device features a body with a base portion that anchors and restrains movement, and includes a first spindle bushing positioned between the base and spindle release body to facilitate axial rotation. A second spindle bushing prevents unwanted pivoting of the first bushing. The spindle release body is centrally aligned to lock rotational alignment and connect the abutment assembly. A threaded connection between the base portion, calibration cap, and washers creates a locked state under normal conditions, maintaining stability across all axes. When torque exceeds a predetermined threshold, the first and second washers deform, disengaging the release pad and spindle release body, and allowing rotational movement to an unlocked state.

A stent graft for treating an arterial aneurysm includes loops fixed to struts of stents, wherein the struts define distal and proximal apices. The ends of a ligature can be linked by a wire in a stent graft delivery system that threads anchor loops longitudinally spanning ends of the ligature to maintain the stent in a radially constricted position during delivery to the aneurysm. A delivery system and method for implanting a stent graft prosthesis includes and employs a torque component at a distal end of the stent graft prosthesis, whereby following advancement of the stent graft to a surgical site in a constrained or partially constrained configuration, torque is applied to the torque component to rotationally align the stent graft about a longitudinal axis of the stent graft, followed by deployment of the stent graft in correct rotational alignment. A delivery system and method of its use includes an apex capture assembly, a leg clasp, and a leg stop for capturing a stent graft during orientation and stabilization at an implantation site of a surgical site.

A launching catheter for targeting a second vessel from a first vessel includes a catheter including a proximal portion and a distal portion including a needle aperture and a flat rectangular radiopaque marker. The flat rectangular radiopaque marker disappears under fluoroscopy upon rotation to provide information about rotational alignment of the launching catheter. The launching catheter includes a needle configured to extend through the needle aperture. A method of aligning the catheter includes rotating the catheter in a first blood vessel until the marker has a thickness (e.g., minimal thickness) under fluoroscopy. The thickness indicates rotational alignment of the catheter.

A balancer assembly for a talar cut is provided. The assembly includes a spreader having a distal end, a balancer releasably attachable to the distal end of the spreader, and a rotational aligner releasably attachable to the spreader. An alignment block is attached to the rotational aligner; and a tibial aligner is attached to the alignment block.

An assembly comprising an abutment and gingival healing cuff. The gingival healing cuff fits and mates over the abutment, wherein the cuff includes internal surfaces (e.g., at least one flat face, and at least one curved face) corresponding to the external surfaces of the abutment, so as to mate with one another. The gingival healing cuff can further include a rectangular box or other timing alignment structure positioned apical to a buccal alignment body, which serves as a buccal alignment marker once the buccal alignment body is removed, and which can aid in helping the practitioner know where the implant platform and abutment platform are located (even when hidden). Flowable composite, e.g., of a different color, can be placed into the rectangular box or other timing alignment structure to aid in identification of the buccal surface of the cuff and proper rotational alignment (“timing”) of the abutment with the implant.

The invention relates to an ultrasonic gastroscope guided transesophageal bronchial intubation suite, which relates to the technical field of medical catheters and comprises a main catheter body, a quick-mounting mechanism and a segmented catheter. By arranging the quick-mounting mechanism, during assembly, the end parts of the main pipe body and the segmented pipe can be aligned with the connecting pipe orifice, the connecting pipe orifice is subsequently pushed to enable the inclined surface of the surface of the clamping block to slide into the circular groove, then the elastic force of the elastic ring sheet can drive the clamping block to be tightly embedded into the circular groove, and the friction force between the clamping block and the circular groove is increased by a rough layer to prevent loosening; meanwhile, the sealing gasket on the inner wall of the connecting pipe opening is tightly attached to the surfaces of the inner walls of the main pipe body and the segmented pipe, during sealing and dismounting, the main pipe body and the segmented pipe are pulled with force in the reverse direction, then the clamping blocks extrude the elastic ring pieces to deform, and then the elastic ring pieces can be separated from the circular grooves, traditional threaded connection is replaced through the structural design, and the tedious step of rotating alignment is omitted; and the purpose that the medical staff can quickly complete assembly is achieved.

This application relates to a simulation training method for total knee arthroplasty prosthesis positioning and gap balancing, belonging to the field of simulation training technology. To provide a standardized and repeatable workflow for individualized planning of total knee arthroplasty surgery, this application provides a simulation training method for total knee arthroplasty prosthesis positioning and gap balancing. This method includes determining the amount of osteotomy on the posteromedial femoral condyle based on the thickness of the femoral prosthesis's posterior condyle; determining the rotational alignment parameters of the femoral prosthesis based on a femoral trochlea model to obtain a patellar trajectory that meets the requirements; determining the placement of the tibial prosthesis on the tibia with the knee joint model in a flexed state; and determining the placement of the femoral prosthesis on the femur with the knee joint model in an extended state. This method enables individualized planning of total knee arthroplasty surgery, precise prosthesis positioning, flexion-extension gap balancing, and standardized training of the surgical procedure, improving surgical accuracy and postoperative outcomes.

A method includes displaying, on a graphical user interface, a planned position of a virtual implant model relative to a virtual bone model of a bone. The virtual implant model includes a plurality of virtual screw holes offset from a central axis of the virtual implant model. The method also includes determining a planned rotational orientation of the virtual implant model by rotating, on the graphical user interface, the virtual implant model about the central axis of the virtual implant model such that the plurality of virtual screw holes rotate about the central axis. The method also includes controlling a robotic device to guide preparation of the bone to receive a physical implant in the planned position. The method also includes providing computer- assisted navigation configured to guide the physical implant into physical rotational alignment with the planned rotational orientation of the virtual implant model.

A system for delivering a replacement heart valve implant may include the implant including an expandable framework and leaflets coupled to the framework, and a delivery device including a handle and an elongate catheter extending from the handle. The catheter includes an outer sheath and an inner shaft movably disposed within the outer sheath. The implant is releasably coupled to the inner shaft. The inner shaft includes an orientation lumen extending longitudinally within the inner shaft, the orientation lumen being offset from a central guidewire lumen of the inner shaft. The delivery device includes an orientation mandrel disposed within the orientation lumen, the orientation mandrel extending distally from the handle to a distal end proximate a closed distal end of the orientation lumen. The orientation mandrel is operably coupled to an orientation mechanism of the handle configured to apply compressive force or tensile force to the orientation mandrel.

A system for delivering a replacement heart valve implant may include the implant including an expandable framework and leaflets coupled to the framework, and a delivery device including a handle and an elongate catheter extending from the handle. The catheter includes an outer sheath and an inner shaft movably disposed within the outer sheath. The implant is releasably coupled to the inner shaft. The inner shaft includes an orientation lumen extending longitudinally within the inner shaft, the orientation lumen being offset from a central guidewire lumen of the inner shaft. The delivery device includes an orientation mandrel disposed within the orientation lumen, the orientation mandrel extending distally from the handle to a distal end proximate a closed distal end of the orientation lumen. The orientation mandrel is operably coupled to an orientation mechanism of the handle configured to apply compressive force or tensile force to the orientation mandrel.