Abstract: A laser-guidance robot for visually projecting a surgical guide onto a surgery region of a patient includes a guidance robot having a robot arm and a robot head. A tracking system can detect a position and/or an orientation of the robot head and of the patient. The robot head has a projection laser on the robot head. The position and orientation of the projection laser can be adjusted by adjusting the robot head. A control unit determines a target position and target orientation of the projection laser relative to the surgery region of the patient and controls the robot arm such that the projection laser is moved into the target position and target orientation. At least one guide axis is visually displayed by the projection laser projecting the laser radiation in the target orientation. The laser-guidance robot can be part of a laser-guidance robot system and be used in a projection method.

Abstract: A system comprises an intraoral scanner, a three-dimensional (3D) image capture device, and a computing device operatively coupled to the intraoral scanner and to the 3D image capture device. The computing device receives intraoral scan data of a dental site of a patient generated by the intraoral scanner during intraoral scanning. The computing device further receives one or more 3D images of a face of the patient generated by the 3D image capture device during the intraoral scanning, wherein the intraoral scanner is captured in the one or more 3D images. The computing device registers the one or more 3D images of the face of the patient to the first intraoral scan data based at least in part on a first position of the intraoral scanner relative to the face of the patient in the one or more 3D images.

Abstract: An orthodontic appliance is constructed from shells shaped to receive teeth. The shells can be constructed from one or more polymer materials and affixed to one another about the edge of each shell, defining a narrow elongate chamber therebetween. The chamber serves to allow for the first shell contacting the teeth to flex and fit a wide range of teeth without sacrificing the overall flexural modulus of the appliance. Methods of making the appliance are also described.

Abstract: A periodontal ligament regenerative material including a composite containing octacalcium phosphate and collagen, wherein the composite is a porous body having a large number of pores, and the porous body has a porosity of 80% or more and 98% or less, a Young's modulus in a dry state of 0.1 MPa or more and 20.0 MPa or less, and a Young's modulus in a wet state of 0.05 MPa or more and 5.0 MPa or less.

Abstract: Embodiments of the present disclosure disclose a dental post for use in root canal treatment. The dental post comprises a vertical portion configured for insertion into a root canal of a tooth, the vertical portion having a length extending from a coronal end to an apical end. The dental post further comprises a horizontal portion extending laterally from the coronal end of the vertical portion to form an L-shaped configuration. The horizontal portion is configured to lock buildup material beneath the horizontal portion when the dental post is inserted into the root canal, thereby reducing lateral movement of the buildup material and enhancing retention of the buildup material during crown restoration. The dental post may be constructed from biocompatible materials and may include a micro-textured surface on the vertical portion to enhance mechanical retention within the root canal.

Abstract: A scan element for a digital scan and for releasable fastening to a scan post fastened in an implant or an installation region of a jaw, including a holding portion serving to be received and fastened on a scan post, the holding portion having a height in a height direction in the direction of longitudinal extent of the scan post, and a wing adjoining the holding portion and extending at an angle of 55° to 125° with respect to the height alignment of the holding portion, wherein the wing at least sectionally has such a unique contour that two adjacent scanned.

Abstract: A dental implant-retained record base device and methods of fabricating thereof are provided, and a method for obtaining an interocclusal record. The method involves inserting an impression post into a dental implant in a partially-dentate patient and capturing a dental impression to obtain a dental cast inclusive of the impression post. A light-curable resin is molded into a cubic shape and subsequently attached to the dental cast at position of the impression post. Upon exposure to visible light, the resin is cured to form a record base device, which is then adjusted to facilitate the positioning of interocclusal record material. The dental implant-retained device constructed from the light-cured resin is configured for attachment to the dental implant for obtaining the interocclusal record for the patient.

Abstract: The present disclosure provides an artificial/implantable heart valve stent and a prosthetic heart valve. The heart valve stent comprises supporting units and an extension branch; the supporting units define a flow channel for blood to flow therethrough; the extension branch extends from the supporting units to the outside of the flow channel, and is provided with an extension part abutting against the heart tissue; a gap for accommodating a native heart valve leaflet is formed between the extension branch and a supporting main body.

Abstract: A replacement heart valve assembly has a stent frame and a replacement valve. The replacement valve has a plurality of leaflets and a valve frame. The leaflets are attached to the valve frame. Further, the assembly has a plurality of suspension struts attached to the stent frame and the valve frame. The valve frame is suspended within the stent frame via the suspension struts. In some embodiments, the assembly further has a sealing member attached to the stent frame to prevent leakage around the replacement heart valve assembly.

Abstract: A positioning member, a valve delivery system, and a balloon-expandable interventional instrument are provided. The positioning member includes a fixing portion and a limiting portion, the fixing portion is connected to the limiting portion, and the limiting portion has a first working state and a second working state; the limiting portion is tubular, and includes a retaining part and a connecting part which are alternately arranged in a circumferential direction; in the first working state, the limiting portion is retracted, the retaining part is configured to position an artificial implant, and the connecting part is contracted and/or folded; in the second working state, the limiting portion is expanded, and the connecting part is stretched and/or unfolded in the circumferential direction, so that a circumferential dimension of the connecting part in the second working state is greater than a circumferential dimension of the connecting part in the first working state.

Abstract: A delivery catheter system is provided with a catheter assembly including an elongate catheter body having a distal tip portion and a capsule distal to the distal tip portion, said capsule comprising a capsule body capable of containing all or part of a deliverable prosthesis. The system further includes a locating member comprising a first portion connected to the capsule body, and an annular second portion extending from the first portion and configured for contacting a valve annulus. The annular second portion is moveable from a collapsed state, in which the second annular portion is at least partially retained within a sheath, to a deployed state in which the second annular portion extends radially outwardly from the capsule body.

Abstract: The present technology provides patient-specific vertebral implants. The implants can include a cage having a geometry contoured to mate with an inferior surface of a superior vertebra and a superior surface of an inferior vertebra at a first target position. The implants can also include a plate having a geometry contoured to mate with an identified anatomical structure at a second target position. The cage and plate can be coupled in a predetermined three-dimensional orientation that simultaneously permits the cage to occupy the first target position and the plate to occupy the second target position when the implant is implanted.

Abstract: A universal humeral stem (100) includes an anchoring functionality for use in a universal shoulder prosthesis system that allows for modular humeral components to be exchanged while leaving the humeral stem in place during a transition from traditional anatomic total shoulder replacement to a reverse total shoulder replacement. The humeral stem (100) includes a proximal body (120) with a mounting base (122), a cloverleaf neck (130), and a shaft (140) and an optional distal stem (150) attached to the proximal body (120). In a further embodiment, the proximal body (120A) and the distal stem (150A) are separate components allowing for matching different distal stems based on length and diameter for a particular patient anatomy.

Abstract: An implant apparatus (1, 100, 200) has a distal component (10, 101, 201) with a stem for intramedullary insertion in a distal bone such as the metacarpal. A proximal component is for sliding engagement on the trapezium as is known in the art. The apparatus also has a replacement proximal component (30, 110, 210) which can be releasably connected to the distal component by threads (23, 15, 104, 115, 204, 215) so that it may replace the original proximal component during revision surgery to provide a different manner of hemi arthroplasty articulation on a proximal bone. For example, after a trapeziectomy, the replacement may extend as far proximally as the scaphoid bone for translational movement on this bone, whereas the original proximal component engaged a surface of the trapezium with translational movement.

Abstract: Devices and methods for trial-fitting smart medical implants are disclosed. A trial fitting device for a smart implant includes a handle, a shaft extending from the handle, a head portion attached to the shaft such that the head portion rotates with the shaft, and a rotational indicator disposed on the shaft and/or the handle, the rotational indicator configured to indicate a rotational orientation of the head portion. The trial fitting device further includes a telemetry gauge disposed on the shaft and/or the handle, the telemetry gauge configured to indicate a threshold distance from the head portion.

Abstract: A prosthetic socket that comprises an open proximal end (4), a distal end (6) with a distal contact surface and a lateral surface that extends between the proximal end (4) and the distal end (6), wherein an effective length of the prosthetic socket extends from the distal contact surface of the distal end (6) to the proximal end (4), wherein an effective circumference of the prosthetic socket extends along the inner surface of the lateral surface, wherein the prosthetic socket comprises an electrical control unit and an adjustment device for adjusting the effective length and the effective circumference, and at least one first sensor (20) for detecting a force acting distally on the amputation stump and at least one second sensor (22) for detecting forces acting radially on the amputation stump, the measured values of which are transmitted to the electrical control unit, the electrical control unit being configured to control the adjustment device according to the measured values of both sensors (20, 22).

Abstract: An implant delivery system including a fixation member delivery system including an elongate shaft, first and second rails, a plurality of fixation members with each fixation member slidably disposed on the first and second rails and an actuation assembly. The actuation assembly includes a first elongate member including a first plurality of engagement members disposed along the first elongate member with a distal end region of each engagement member in engagement with one of the fixation members, a second elongate member including a second plurality of engagement members disposed along the second elongate member with a distal end region of each engagement member in engagement with one of the fixation members. Additionally, cyclical actuation of the actuation assembly is configured to incrementally move the fixation members distally along the first and second rails to deploy each of the plurality of fixation members in sequence.

Abstract: A brace support frame may comprise a base member having an interior surface and an exterior surface. At least a portion of the interior surface of the base member may include an interior surface feature. At least a portion of the exterior surface of the base member may include an exterior surface feature. The brace support frame may include a first sidewall member having an interior surface and an exterior surface. At least a portion of the exterior surface of the first sidewall member may include one or more first attachment features. The brace support frame may include a second sidewall member having an interior surface and an exterior surface. At least a portion of the exterior surface of the second sidewall member may include one or more second attachment features. The brace support frame may include an endwall member having an interior surface and an exterior surface.

Abstract: Systems and methods for improving vision of a subject implanted with an intraocular lens (IOL). In some embodiments, a method includes determining a deviation in position of at least one optical element from a reference line corresponding to alignment of the apex of the cornea, center of the pupil, center of the IOL, and fovea, and/or determining a tilt of at least one of the optical elements relative to the reference line. The method can further include applying a plurality of focused laser pulses to a selected area of the implanted IOL to produce, through refractive index writing, a phase change pattern on the IOL that is configured to compensate for the deviation(s) and/or tilt to improve the foveal vision of the subject.

Abstract: Resolution Means: An eye mask 100 of the present invention comprises an eye-mask body piece 10 for covering the eyes, and mineral-containing sites 50 situated in the eye-mask body piece 10. The eye-mask body piece 10 includes a frontward mask portion 11 for covering the eyes, and sideward mask portions 12, wherein among the mineral-containing sites 50 a frontward mineral patterning 51 for enveloping the periphery of the eyes is formed on the frontward mask portion 11. The frontward mineral patterning 51 is made up of two openings 53, and loop sites 54 positioned on the peripheries of the two openings 53. The loop sites 54 are created by a single strand of tape material being folded over itself.