Abstract: Techniques for ratcheting an alignment between an input means and an instrument include a teleoperated system comprising a robotic means configured to support an instrument, an input means configured to be manipulated by an operator to command motion of the instrument, and a ratcheting means. The ratcheting means is configured to determine first rotation values describing an orientation of the input means; determine second rotation values describing an orientation of the instrument; determine, based on the first rotation values and the second rotation values, an orientation error between the orientation of the input means and the orientation of the instrument; generate, based on the orientation error, a motion command for the instrument to reduce the orientation error by increasing an alignment between the input means and the instrument; and command the robotic means to move in accordance with the motion command.

Abstract: A method comprises generating, by a control system, a measured model of an elongate instrument based on a measured state of the elongate instrument. The method further comprises generating, by the control system, a predicted model of the elongate instrument based on a reference state of the elongate instrument and a user command. The method further comprises comparing, by the control system, the measured model with the predicted model. The method further comprises determining, by the control system, whether a patient has moved relative to the elongate instrument based on the comparison.

Abstract: A medical measurement apparatus includes: a cable connected to a probe; an apparatus body from which the cable is led out, the apparatus body having a bottom face and a side face larger than the bottom face, and being vertically long in shape in use; and a hook disposed on the apparatus body, the hook being lower than a position of a center of gravity of the apparatus body, the hook holding the cable by hooking.

Abstract: The invention relates to a stereotactic device (10c) for an operation on the head of a patient (P), comprising: -at least one operating guide (71) configured to guide a surgical instrument, during the operation, to an operating zone; -at least one structure (5e) for positioning said at least one operating guide (71) relative to the skull of the patient (P); and -a dental support (3d) configured to anchor the positioning structure on the upper jaws of the patient (P); said at least one positioning structure (5e) being attached to the dental support (3d) as well as to the at least one operating guide (71).

Abstract: In a system and method for creating a panoramic view of a surgical procedure, a camera is positioned in a body cavity and captures real time images of a surgical site within the body cavity. The real time images are stitched together with non-real time images of the body cavity, that were captured during the surgical procedure prior to time t. The stitching of the real-time and non-real-time images creates a panoramic image that is displayed on a display.

Abstract: The invention is an implantable marker for marking an intracorporeal tissue region of an animal or human, comprising at least one strand of a biocompatible material configured into a three-dimensional shape impressed upon it during a shaping process. The three-dimensional shape is formed by external mechanical force, applied to the at least one strand once the mechanical force ceases, the strand comprises at least two fixed strand eyes. Each of which is formed by at least one winding of the strand and has a fixed relative spatial position with respect to at least one other eye once the mechanical force ceases. A winding plane is associated with the strand eyes having winding planes relative to each other to form an angle ? which is not equal to 0°.

Abstract: A system, method, and air purification device. Air is taken in from an environment into the air purification system. The air is treated with vacuum ultraviolet radiation in a first reaction chamber to generate irradiated air. The irradiated air is treated with ultraviolet-C radiation in a secondary reaction chamber to generate purified air. The purified air is emitted back into the environment from the air purification system.

Abstract: Systems, devices and methods for advanced electrode management in neurological monitoring applications include receiving sockets configured to receive connectors having groups of electrodes. The physician is not required to manually map each electrode with its corresponding input channel. Electrodes are coupled to the corresponding input channels in groups through connectors having a unique identification (ID). The system is configured to read the unique ID of each connector and establish its identity. Based on the ID, the system configures itself to automatically correlate or associate each electrode with its corresponding input channel when the connectors are first inserted into the receiving sockets, and again if the connectors are removed and re-inserted into different positions in the receiving sockets, to insure the electrodes are always mapped to the same input channels.

Abstract: An electromechanical control system of a root canal treatment device, and a cutting control method and apparatus therefor, are provided. After the drive motor used for driving a root canal file in the root canal treatment device is started up, the root canal file is controlled so as to perform a pendulum movement in a preset angle range; and after the root canal file moves across a step (102) in a root canal (101) by means of the pendulum movement, a cutting operation is performed according to a preset working mode of a user so as to eliminate the step (102). Moving across the step (102) is effectively carried out by means of the pendulum movement, and after moving across the step (102), the root canal file can be controlled according to a conventional control policy to sweep the root canal (101) .

Abstract: Various devices, assemblies, components, systems, and methods are provided relating to a delivery system, a connection plate, and an electrical connection system. An example delivery system may include a mount, a movement arm, a delivery portion, and a connection arm. The movement arm may be rotationally connected to the mount at a first connection point of the movement arm and may rotate relative to the mount about a first axis of rotation. The connection arm may be rotationally connected to the movement arm at a second connection point of the movement arm to rotate relative to the movement arm about a second axis of rotation. The movement arm and the connection arm may each be configured to be disposed at least a predetermined minimum height or greater above a ground level at a location of the second axis.

Abstract: A system and method for dental or surgical treatment of oral tissue, the system including a laser source; a hand piece; and a device for directing radiation emitted by the laser source to a treatment area (e.g., an oral treatment area), the device further including a disposable tube attachable to the hand piece and an optical element (e.g., a substantially cylindrical lens) mounted within the disposable tube and adapted to modify a profile and/or a direction of the radiation emitted from the tube.

Abstract: A dental abutment construction member which is used for the construction of abutments is configured so as to have a tubular shape having an upper surface, a bottom surface, an outer peripheral side surface and an inner peripheral side surface. According to this configuration, the concentration of stress in cervical areas can be prevented and the formation of post holes becomes unnecessary.

Abstract: A novel disc-cutting bur to be used by a dentist in order to cut ceramic crowns is disclosed. The disc cutting bur may comprise a shank and a cutting disc, wherein the shape of the cutting disc is a truncated cone.

Abstract: This application discloses an attachment for invisible orthodontic appliance without bracket, an orthodontic device combination, and a construction method and system.

Abstract: Methods and apparatuses for attaching one or more dental attachments to a dentition. Methods may include placing an attachment placement apparatus on the dentition such that contoured surfaces of the attachment placement apparatus are aligned with correspondingly shaped tooth surfaces of the dentition. A body of the attachment placement apparatus may position the dental attachment(s) against specified location(s) on one or more teeth of the dentition. The dental attachment(s) may be coupled to supports that extend from the body. The supports may include breakable regions configured to be broken to facilitate removal of a corresponding dental attachment from the body. The supports may position the dental attachment(s) within corresponding aperture(s) of the attachment placement apparatus. The dental attachment(s) may be secured at the specified location(s) on the teeth.

Abstract: An implant and preparation method thereof, wherein the implant comprises an implant body, the implant body comprises an opposing first end and second end, wherein an opening is provided at a top end surface of the first end, a first portion and a second portion are provided at an outer side of the implant body, compared with the second portion, the first portion is closer to the first end, a first fixing structure is provided on the first portion, a second fixing structure is provided on the second portion, bionic structures are provided on surfaces of the first portion and the second portion, the bionic structures comprise a plurality of micropores, and diameters of the plurality of micropores are 1 nm to 20 ?m.

Abstract: An implant drill includes a mounting portion and a treatment portion, wherein the implant drill extends in a longitudinal direction, wherein distal end regions in the longitudinal direction of the implant drill are formed by the mounting portion and the treatment portion, wherein the treatment portion has at least two treatment structures, wherein the treatment portion is formed by the treatment structures such that the treatment portion is configured to remove bone material during a positive rotation about the longitudinal direction and to compact bone material during a negative rotation about the longitudinal direction.

Abstract: Embodiments relate to techniques for assisting users of intraoral scanners during intraoral scanning. In an embodiment, a method includes receiving intraoral scans of a dental site, generating a 3D surface of the dental site based on the intraoral scans, determining a surface quality score for a region of the 3D surface, and outputting a view of the 3D surface to a display, wherein the region of the 3D surface is shown with a visualization associated with the surface quality score.

Abstract: Provided is a dental cleaning device. In the device, by arranging the water pump, the mixing mechanism and the rotating blade, clean water in the water tank enters the input pipe through the first hose and the three-way valve under the action of the water pump, and toothpaste in the toothpaste chamber also enters the input pipe through the three-way valve under the action of the toothpaste pump, and the mixture of clean water and toothpaste enters the mixing chamber through the input pipe to drive the rotating blade to rotate, so that toothpaste and water may be fully mixed, and toothpaste may be effectively prevented from being blocked in the electric toothbrush.

Abstract: A tooth arch receiving element has an arch formed of a conformable structure for receiving the teeth of a user. An actuator is used to increase the rigidity of the conformable structure after it has been shaped to correspond to a shape of a tooth arch of a subject during an arch fitting stage.

Abstract: Methods of treatment of a dentition using a dental appliance including a scaled-up cavity to establish a space between an inner surface of the scaled-up cavity and a tooth. The space may be adapted to accept a chemical to chemically treat the tooth. The scaled-up cavity may have a spacer configured to maintain the space between the inner surface of the scaled-up cavity and the tooth. The dental appliance may also include a fitted cavity configured to snuggly fit on another tooth to create a fixed orientation of the dental appliance with respect to the dentition, for example, to ensure that the chemical within the space is in contact with the tooth.

Abstract: Disclosed are a nozzle structure and an oral irrigator thereof. The nozzle structure includes a base and a nozzle connected to the base. The base is provided with a receiving groove, and a whitening agent is provided inside the receiving groove. The base is provided with a water inlet channel communicated with the receiving groove. The nozzle is provided with a water outlet channel configured to facilitate outflow of whitening liquid, and a filter screen for filtering the whitening liquid is installed at one side of the water outlet channel.

Abstract: The present disclosure provides generally for an improved system to constrain animals. More specifically, the present disclosure describes an animal safety constraint system that may be used to safely and securely restrain animals, such as for grooming, veterinary inspection, or shearing, as non-limiting examples. The animal safety constraint system may be customized according to the needs of the user or the occupant. The animal safety constraint system may be mobile or stationary, depending on the configuration the user sets up for the animal safety constraint system.

Abstract: A full coverage abdominal anatomic hernia mesh includes an upper mesh section, a lower mesh section, a lateral edge, and a horizontal axis. The lateral edge includes a first inflection point, an upper concave edge, a second inflection point, a lower-left concave edge, a third inflection point, a lower convex edge, a fourth inflection point, and a lower-right concave edge to define the preferred shape. The upper mesh section is adjacently connected to the lower mesh section along the horizontal axis. The lateral edge is perimetrically positioned around the upper mesh section and the lower mesh section. The upper concave edge is extended from the first inflection point to the second inflection point and adjacent to the upper mesh section. The lower-left concave edge, the third inflection point, the lower convex edge, the fourth inflection point, and the lower-right concave edge are positioned adjacent to the lower mesh section.

Abstract: The present disclosure relates generally to composite implants (10) configured for the repair or treatment of soft tissue, the composite implants including a mesh (20) having one or more grip members (25) and a compressible foam (30) applied thereto.

Abstract: Systems and methods for the intravascular treatment of clot material within a blood vessel of a human patient are disclosed herein. A method in accordance with embodiments of the present technology can include, for example, positioning a distal portion of a catheter proximate to the clot material within the blood vessel. The method can further include coupling a pressure source to the catheter via a tubing subsystem including a valve or other fluid control device and, while the valve is closed, activating the pressure source to charge a vacuum. The valve can then be opened to apply the vacuum to the catheter to thereby aspirate at least a portion of the clot material from the blood vessel and into the catheter.

Abstract: Single filter and multi-filter endolumenal methods and systems for filtering fluids within the body. In some embodiments a blood filtering system captures and removes particulates dislodged or generated during a surgical procedure and circulating in a patient's vasculature. In some embodiments a filter system protects the cerebral vasculature during a cardiac valve repair or replacement procedure.

Abstract: An intravascular emboli capture and retrieval system for intravascular embolism protection and embolism removal or maceration. Guidewire mounted proximally and distally located multiple opening filters are deployed within the vasculature and used to part, divide and macerate embolic debris and to capture such embolic debris within the confines thereof. A deployable flexible preformed memory shaped capture sleeve is alternatively used to collapse one or more filters and embolic debris therein for subsequent proximal withdrawal from the vasculature.

Abstract: Described herein are devices, systems, and methods for modifying blood flow and improving tissue oxygenation in an individual. More specifically, described herein are flow modifying implants, delivery systems, and methods of treatment using flow modifying implants. Also described herein are methods for preventing reperfusion injury in an individual using a flow modifying implant to prevent the reperfusion injury.

Abstract: Implantable tubular devices have a fenestration in a wall of the tubular device and a conductive coil positioned around the fenestration such that the coil is operable to generate a magnetic field when electrical current flows through the coil. The magnetic field can be used to draw a ferrous or magnetically tipped guidewire or other device to and through the fenestration. In the example of a fenestrated endovascular graft, the coil can be used to draw a guidewire out through a fenestration into a branch blood vessel, such that the guidewire can be used to deliver a branch of the graft through the fenestration into the branch vessel. A power source can be contained in a nosecone.

Abstract: A stent-graft prosthesis includes a graft material having a tubular construction, a frame coupled to the graft material, and a port or opening disposed between a proximal end and a distal end of the graft material. The port or opening is open during deployment of the stent-graft prosthesis to enable blood flow from a graft lumen within the graft material to exit the graft lumen, and the port or opening is blocked upon full deployment of the stent-graft prosthesis to prevent blood flow from within the graft lumen from exiting the graft lumen through the port or opening.

Abstract: A method for controlling an artificial iris comprises: receiving a measurement of light intensity detected by a sensor on or adjacent to the artificial iris; accessing a user-specific profile based on user calibration for determining one or more user-specific thresholds of light intensity of the user-specific profile, wherein the one or more user-specific thresholds are associated with light intensities for triggering a change of light transmittance through the artificial iris; comparing the received measurement of light intensity to the one or more thresholds in the user-specific profile; and determining, based on said comparing, whether to turn on or turn off one or more concentric rings of liquid crystals of the artificial iris for controlling an amount of light transmitted through the artificial iris.

Abstract: A method for controlling an artificial iris comprises: receiving a measurement of light intensity detected by a sensor on or adjacent to the artificial iris; accessing a user-specific profile based on user calibration for determining one or more user-specific thresholds of light intensity of the user-specific profile, wherein the one or more user-specific thresholds are associated with light intensities for triggering a change of light transmittance through the artificial iris; comparing the received measurement of light intensity to the one or more thresholds in the user-specific profile; and determining, based on said comparing, whether to turn on or turn off one or more concentric rings of liquid crystals of the artificial iris for controlling an amount of light transmitted through the artificial iris.

Abstract: An intraocular lens (IOL) includes a lens body having an anterior surface and a posterior surface disposed about an optical axis, and a progressive phase step structure formed on a refractive surface profile of at least one of the anterior surface or the posterior surface, the at least one of the anterior surface or the posterior surface having an outer zone, an inner zone, and a transition zone continuously connecting the outer zone and the inner zone. The refractive surface profile in the outer zone provides a base power, and the refractive surface profile in the inner zone provides an add power. The progressive phase step structure includes a first annular ridge structure within the inner zone, and a second annular ridge structure extending radially from the transition zone to the outer zone.

Abstract: Certain examples of the disclosure concern a guard member for a docking device configured to receive a prosthetic valve. The guard member can include an expandable member and an elastic member extending along an axial length of the expandable member. The expandable member can be movable between a radially compressed state and a radially expanded state. When the expandable member is in the radially compressed state, the elastic member can be in an axially stretched state. The elastic member in the axially stretched state can be configured to return to a resting state, thereby moving the expandable member from the radially compressed state to the radially expanded state.

Abstract: Methods and assemblies for attaching leaflets to a frame of a prosthetic heart valve using a connecting skirt are disclosed. As one example, a prosthetic heart valve can include an annular frame comprising a plurality of struts and a valvular structure mounted within the frame and comprising a plurality of leaflets. A cusp edge portion of each leaflet can be connected to the frame by a connecting skirt, where each connecting skirt comprises a central portion and opposing side base portions on opposite sides of the central portion, and each connecting skirt can further comprise side extension portions that extend away from the cusp edge portion of the leaflet and across a portion of cells of the frame that are disposed between cusp edge portions of adjacent leaflets, and covers at least one entire cell of the portion of cells.

Abstract: A prosthetic heart valve including a plurality of leaflets attached to the frame is disclosed. The plurality of leaflets is disposed within the frame and configured to regulate the flow of blood through the frame in one direction, each leaflet comprising a cusp edge portion. The prosthetic heart valve can further include at least one suture extending along a cusp edge portion of at least a first leaflet of the plurality of leaflets, a plurality of in-and-out stitches extending through the suture and the cusp edge portion of the first leaflet, and a plurality of whip stitches that extend around selected struts of the frame and the suture to couple the cusp edge portion of the first leaflet to the frame.

Abstract: Prosthetic heart valves including a radiopaque marker configured to indicate a location of a commissure of the prosthetic heart valve are disclosed. As one example, a prosthetic heart valve includes an annular frame comprising a plurality of struts, a plurality of leaflets arranged within the frame, and at least one commissure comprising commissure tabs of two adjacent leaflets of the plurality of leaflets connected to each other, the at least one commissure coupled to the frame. The valve further includes a radiopaque marker, separate from the frame, attached to the commissure, where the marker is configured to indicate a location of the commissure of the prosthetic heart valve.

Abstract: Examples of prosthetic heart valves and frames for use in prosthetic heart valve are disclosed herein. The prosthetic heart valves comprise frames that are movable between a radially compressed configuration and a radially-expanded configuration and comprise a row of inlet cells, a row of outlet cells, and a row of intermediate cells. The frames of the prosthetic heart valves include actuation members and locking mechanisms configured to secure the frame in one or more radially-expanded configurations. In some examples, the actuation members and locking members are integrally formed with the frame. The frames of the prosthetic heart valves can be coupled to one or more shafts of a delivery apparatus via a threaded connection or a non-threaded connection.

Abstract: A prosthetic heart valve including an annular frame and one or more detachable outer skirts and methods associated therewith. The frame has one or more outer skirts releasbly attached to an exterior surface of the frame. In some examples, an outer skirt is attached to the frame via at least one retaining suture formed by stitches looped around a pull suture and struts of the frame. Portions of the outer skirt are captured between the pull suture and the exterior surface of the frame along a suture line. Removal of the pull suture from the suture line enables the outer skirt and frame to separate as the stitches are pulled through openings in the outer skirt. In some examples, outer skirts can be releasably attached to the frame via bioresorbable couplers. Removability of the outer skirts can facilitate improvements in implant and explant procedures of the prosthetic valves.

Abstract: In one representative embodiment, a gripping and pushing device for a medical instrument comprises an elongated main body defining a lumen. The elongated main body comprises one or more deflectable portions that can be pressed radially inwardly toward a shaft of the medical instrument extending through the lumen. One or more elastomeric gripping layers can be secured to the inner surface of a respective deflectable portion at axially spaced apart attachment locations. The one or more gripping layers are axially deformable relative to the one or more deflectable portions between the attachment locations when manual pressure is applied to the one or more deflectable portions to press the one or more gripping layers against the shaft and move the shaft longitudinally into a patient's body.

Abstract: A replacement heart valve system may include a replacement heart valve implant including an expandable framework configured to shift from a radially collapsed configuration to a radially expanded configuration and a plurality of valve leaflets attached to the expandable framework at a plurality of commissure posts, and an implant delivery system including a handle and an elongate shaft assembly, the elongate shaft assembly including a tubular member fixedly attached to the handle, and an implant holding portion configured to constrain the expandable framework in the radially collapsed configuration. The elongate shaft assembly includes an anti-migration element configured to shift between a delivery configuration and an open configuration. The anti-migration element is configured to prevent proximal movement of the expandable framework relative to the tubular member in the open configuration.

Abstract: An implantable prosthetic device including a radially expandable and compressible frame having an inflow end portion and an outflow end portion. The frame including an actuator mechanism having a first frame member with a first inner bore and a second frame member with a second inner bore, the first and second frame members being spaced apart axially from one another, an actuator extending through the first and second inner bores, and a compressible cover member disposed over a portion of the actuator extending between the first and second frame members. Rotation of the actuator in a first direction causes the first and second frame members to move axially toward one another to expand the frame.

Abstract: The disclosure provides valve prostheses and methods of installation. One embodiment of the prosthesis has a generally tubular body adapted for placement proximate a mitral annulus. The tubular body has a generally tubular upper portion adapted to substantially reside in the left atrium above the mitral annulus. The generally tubular upper portion has a first circumferential wall that is outwardly biased to urge against cardiac tissue of the left atrium. The tubular body also includes a lower portion extending downwardly from the generally tubular upper portion, the lower portion being configured to substantially reside in the left ventricle below the mitral annulus. The lower portion of this embodiment can be defined by an generally circumferential wall that extends downwardly from the generally tubular upper portion. The generally circumferential wall has a first circumferential end and a second circumferential end, and defines a circumferential extent therebetween.

Abstract: Aspects of the disclosure include systems including an anchor including a body having a distal end, a proximal end and an opening extending from the proximal end to the distal end. The distal end includes a plurality of flanges, each flange including a proximal barb and a distal barb; the anchor having a natural arrangement in which the distal barbs of the plurality of flanges converge to form a pointed tip. The system further includes a rod that can be inserted in the opening to force the distal barbs away from a longitudinal axis of the opening into a delivery arrangement. The rod can also be used to retrieve an anchor after deployment. Such anchors can be utilized with annuloplasty implants. Methods of deploying and retrieving anchors of the disclosure are also disclosed.

Abstract: A system includes a stent positionable within a coronary vein. The stent includes a valve and a stent body coupled to the valve and arranged to transition between a collapsed state and an expanded state. The system includes an intravascular reperfusion therapy device with a sensor and a catheter with a lumen shaped to receive the stent. The intravascular reperfusion therapy device delivers reperfusion therapy to a myocardium of a heart. The system includes a processor circuit that receives physiological data from the sensor, determines a progression of the reperfusion therapy, controls a configuration of the valve and/or the expansion state of the stent such that back pressure is controlled. With the stent in the expanded state, the stent body contacts a wall of the coronary vein and the valve obstructs blood flow in a first direction to generate the back pressure in an opposite, second direction.

Abstract: A tether protection device can comprise an inflatable member configured to be positioned over an opening in a target tissue. The inflatable member can comprise a central portion defining an opening extending through the inflatable member, the opening of the inflatable member being configured to allow for a plurality of tethers extending from the opening in the target tissue to be disposed at least partially therein. A fluid port can be associated with the inflatable member, the inflatable member being configured to be inflated via the fluid port to an initial inflation state in which the plurality of tethers is allowed to move freely within the opening of the inflatable member, and a first inflation state in which at a portion or the central portion is collapsed around and in contact with the plurality of tethers.

Abstract: An anchoring component for implanting with a prosthetic component comprises an annular body comprising an interior surface defining a socket for receiving a stem of the prosthetic component and an exterior surface for engaging bone, an internal void within the annular body and a functional component disposed within the internal void to provide supplemental functionality to the anchoring component. The functional component can comprise a treatment fluid or a sensor module.

Abstract: Prostheses and methods are described for stabilizing dysfunctional sacroiliac (SI) joints. The prostheses are sized and configured to be press-fit into surgically created pilot SI joint openings in dysfunctional SI joint structures. The prostheses have a pontoon shape with opposed elongated partially cylindrical sections connected by a bridge section. The bridge section can have various shapes, such as an offset, arched structure, to accommodate the delivery and/or positioning of a primary or supplemental support member or device between the first and second elongated sections, such as a sacral-alar iliac (S2AI) screw or surgical dowel member.

Abstract: In some embodiments, apparatuses and methods are provided herein useful to orthopedic components. In some embodiments, an orthopedic component comprises a stem portion including a proximal end and a distal end, wherein the stem portion is configured to be inserted into a bone, an anatomical portion located at the proximal end of the stem portion, and a plate extending away from the stem portion such that a gap exists between the plate and the stem portion, wherein at least a portion of the plate extends toward the distal end of the stem portion.