Abstract: A force sensing device is disclosed that includes a housing tip, a plurality of sensors stationarily spaced from each other, and a spring element connecting the housing tip to the sensors such that moving the housing tip and the sensor relative to each other causes a resilient deformation of the spring element. The spring element is configured to arrange the housing tip in a zero position relative to the sensors by a spring force of the spring element. The force sensing device is also equipped with a spring tensioning structure configured to adapt the spring force of the spring element.

Abstract: The present invention generally relates to an augmented reality, and more particularly, the present invention relates to a method for indicating alignment of a body-fixed axis (300) with a reference axis (301) of a pre-determined reference pose.

Abstract: A computer-implemented method of object enhancement in endoscopy images includes capturing an image of an object within a surgical operative site via an imaging device, determining a size of the object based on the captured image of the object, displaying the captured image of the object, and displaying on the displayed captured image of the object a representation of the determined size of the object.

Abstract: A jig includes a base and one or more movable blocks. The base has an upper surface, which is configured to receive a substrate shaped as a flattened polyhedron having multiple facets. The one or more movable blocks are configured to move on the base so as to fold respective ones of the multiple facets, and to hold the substrate in a folded three-dimensional configuration.

Abstract: The present disclosure relates to cannula assemblies for use with robotic surgical systems. According to an aspect of the present disclosure, a surgical cannula assembly for use with a mounting structure of a robotic arm, is provided. The surgical cannula assembly includes a cannula configured for reception of a surgical instrument at least partially therethrough; an attachment mechanism configured to releasably engage the cannula; and a barrier configured to extend through a channel of the mounting structure. The barrier includes a proximal ring for positioning adjacent a proximal face of the mounting structure, a distal ring for positioning adjacent a distal face of the mounting structure, and a cylindrical section defining a lumen therein and extending between the proximal ring and the distal ring, the cannula configured for insertion within the lumen in a distal-to-proximal direction.

Abstract: The present invention provides a clamp (10) for clamp for retaining a medical device in a medical apparatus. The clamp (10) includes a pair of opposed gripping elements (16). At least one of the gripping elements is substantially rotatably moveable to grip and apply a compressive force on a portion of the medical device when the portion it is placed between the gripping elements. The compressive force increases when the at least one of the gripping elements rotates in one direction and reduces when it rotates in an opposite direction.

Abstract: A system for injection of endodontic cement into the radicular canal system comprising a closed-end cannula and at least one side orifice. Also disclosed are a system comprising a sleeve to be positioned between the cannula and the tooth, for injection of intra-radicular material, obliterating the aperture of the dental canal, a system comprising a moldable tip for a closed-end intra-radicular material injection cannula, and the use of the injection systems for the injection of endodontic cement.

Abstract: A simulating method. The method includes acquiring an image of a dental arch of a patient, called the “original image.” The method includes subjecting the original image to a neural network, called the “modification neural network”, trained to locally modify the original image in order to obtain a “modified image.” The method includes presenting the modified image to the patient.

Abstract: A method of administering the contents of a dental impression kit. The method includes sending a dental impression kit to a user, receiving one or more photos of the user's mouth, the one or more photos having been taken while the dental appliance is positioned at least partially within the user's mouth, receiving the initial dental impression created by the user by administering the initial dental assembly, and receiving the redundant dental impression created by the user by administering the redundant dental assembly. The initial dental impression and the redundant dental impression provide information necessary to manufacture a plurality of dental aligners specific to the user and being configured to reposition one or more teeth of the user.

Abstract: Method and system for managing multiple impressions of a patient's jaw for an orthodontic treatment are provided. The method includes scanning at least a first impression and a second impression of the same jaw for the orthodontic treatment; determining if the first jaw impression and the second jaw impression have distortion in different areas; selecting the first jaw impression or the second jaw impression as a base impression; and replacing distorted tooth data from the base impression with data for the same tooth from a non-base impression. The method also includes scanning at least a first jaw impression for the orthodontic treatment; scanning a bite impression for the orthodontic treatment; matching the scanned first jaw impression with the scanned bite impression; comparing bite information with a tooth occlusal surface; and determining if reconstruction is to be performed on the tooth occlusal surface.

Abstract: Methods for orthodontic treatment planning include modifying a digital picture of a patient based on a tooth model produced during simulated orthodontic treatment after movement of at least one model tooth to produce a modified digital image depicting the at least one model tooth after movement. The method includes matching and morphing information from the digital picture into the modified digital image. Modifying includes matching a model tooth in the T1 model to a tooth in the digital picture and morphing that information into the modified digital image. Morphing may include projecting a model tooth in the T1 model to an image plane of the digital picture and projecting a model tooth from an intermediate T model to the image plane. Parameterization of the projections of each model may be used to develop a pixel correspondence map, which is usable during rendering of a tooth in the modified digital image.

Abstract: An oral appliance having an upper tray, a lower tray, and axial inserts attached to either the upper tray or lower tray to adjust the relative position of a user's upper jaw and lower jaw in order to treat sleep apnea and/or snoring while at the same time allowing orthodontic treatment of the subject.

Abstract: An orthodontic system including a first appliance configured to removably couple to a maxilla of a mouth of a patient. The first appliance having a first tray and a first expansion screw assembly. The first tray defines a first segment, a second segment, and a third segment. The first tray includes a first bite block extending from one of the first or second segments on a first side of the orthodontic system. The first expansion screw assembly is coupled to the first tray having a first expanding screw and a second expanding screw that are selectively movable to enable the first, second, and third segments of the first tray to move relative to one another.

Abstract: An orthodontic bracket has a base configured for attachment to a tooth surface, a bracket element with an arch wire slot attached to one side of the base, and a clip for securing the arch wire in the slot. The bracket element has a wall portion extending upward along one side of the arch wire slot. This wall portion has three indentations in a line parallel to the mesiodistal direction, separated by two side walls having free ends with flanges extending parallel to the mesiodistal direction. The clip is substantially U-shaped and has two protrusions shaped to fit within the two outer indentations of the wall portion, and two diverging central fingers that fit within the central indentation, and a locking element. The clip is securable to the bracket by placing the protrusions and central fingers into the indentations of the bracket element until they engage the flanges.

Abstract: A dental bridge includes a mounting structure and at least one pontic or artificial tooth mounted to the mounting structure. The mounting structure includes a first bonding pad, a second bonding pad spaced from the first bonding pad, a rigid wire having a first end fixed to the first bonding pad and a second end fixed to the second bonding pad, and the pontic is secured to the rigid wire, for example via a pontic attachment structure on the rigid wire between the first bonding pad and the second bonding pad.

Abstract: A package opener comprises a handle having a first half and a second half. A plurality of blade cartridges are sandwiched between the first half and the second half, wherein the plurality of blade cartridges include at least one package opening blade cartridge, at least dual blade cartridge, and at least one envelope cutting blade cartridge. The package opening blade cartridge is configured at an operative bottom end of the handle. The dual blade cartridge is configured at an operative rear end of the handle. The envelope cutting blade cartridge is configured at an operative front end of the handle.

Abstract: A self-ligating bracket includes a bracket body and a spring clip. The bracket body includes a mesial channel, a distal channel, a center channel, and an arch wire slot. The spring clip includes a distal arm, mesial arm, and a center arm which are moveably within the mesial channel, distal channel, and center channel between an open position and a closed position to occlude the arch wire slot.

Abstract: A method for producing an adaptive element for dental implantation includes: creating a 3D virtual model including a crown part and a root part; obtaining a boundary curve between the crown part and the root part; defining a boundary plane on the root part perpendicular to a vertical axis of the 3D virtual model and spaced apart from the boundary curve; projecting the boundary curve on the boundary plane in a direction parallel to the vertical axis; generating a tubular model having a predetermined thickness based on the boundary curve, a virtual surface connected from the boundary curve to the cutting plane, and the cutting plane; and producing the adaptive element according to the tubular model.

Abstract: A dental prosthesis system includes a dental implant having a dental implant fixture and an internal locking collar extending upwardly from the dental implant fixture. The internal locking collar defines a central bore extending downwardly into the dental implant fixture. An abutment for cement has a base surface for placement against the dental implant, which defines a central hole aligned with the central bore. A securing mechanism secures the abutment for cement to the dental implant. The securing mechanism including an expansion locking system disposed through the central hole and within the bore. A portion of the expansion locking system is expandable outwardly so as to lock the abutment for cement to the dental implant fixture.

Abstract: A denture abutment retention apparatus and a denture including one or more denture abutment retention apparatuses configured to allow the denture to be easily engaged with and secured to a plurality of denture abutments in a user's mouth using sliding motion of the denture from the sides of the plurality of denture abutments.

Abstract: A device including a coded pattern for use in dental procedures is provided. Related methods and systems are also provided.

Abstract: Computer-implemented methods for generating a 3D dental prosthesis model are disclosed herein. The methods comprise training a deep neural network to generate a first 3D dental prosthesis model using a training data set; receiving a patient scan data representing at least a portion of a patient's dentition; and generating, using the trained deep neural network, the first 3D dental prosthesis model based on the received patient scan data.

Abstract: The present invention relates to a pharmaceutical composition for treating and preventing gingivoperiodontitis or peri-implantitis, comprising, as effective components, sodium ethylenediaminetetra acetate, cetylpyridinium chloride, octyl phenol ethoxylate, and sodium bicarbonate. The composition according to the present invention can effectively eliminate bacteria causing gingivoperiodontitis and peri-implantitis, thereby alleviating inflammation, and furthermore, an interdental brush coated with the composition is convenient to apply to gaps between teeth, dental implants, orthodontic appliances, etc. and thus can be used to treat and prevent gingivoperiodontitis and peri-implantitis conveniently at home.

Abstract: Provided is an interdental cleaning tool that is not too soft and is unlikely to break during use. An interdental cleaning tool according to the present invention includes: a cleaning tool body that is made of a synthetic resin, and includes a grip portion that is capable of being gripped with fingers of a user and a shaft portion that extends in one direction from the grip portion; and a cleaning portion configured to clean between teeth, covering a leading end of the shaft portion, and made of an elastomer, wherein Y>?0.07X+3.3 is satisfied, where Y is a maximum torque value (N·cm) when the grip portion is rotated at a rotational speed of 10 rpm about a position located 15 mm away from a leading end of the cleaning portion, and X is a rotational angle (degrees) when the maximum torque value is measured.

Abstract: A dental treatment appliance includes a treatment system which transmits a pulsed signal towards the oral cavity and receives a signal returned from the oral cavity. A controller actuates the treatment of the oral cavity of the user depending on the received signal.

Abstract: The invention relates to a device (10) for cleaning teeth. The device (10) has a mouthpiece (20) in the form of a substantially horseshoe-shaped dental arch (22), a retaining unit (26) and a motor drive (28). The dental arch (22) is designed as a closed hollow body, and the side of the hollow body (22) that faces the teeth has a tooth-cleaning film (34, 36). The tooth-cleaning film (34, 36) has an individualized surface contour matched to the tooth shape and jaw shape and can made set into oscillation by the motor drive (28).

Abstract: A method for preparing and/or caring for a medical or dental instrument is defined in that the instrument jointly with a connection adapter is first connected to a first preparation and/or care device and subsequently to a second preparation and/or care device. Furthermore, a coupling device is described which is configured to connect a preparation and/or care device for a medical or dental instrument to a connection adapter. A plug-in coupling arrangement and a system are also disclosed.

Abstract: An apparatus and method for a dental tool holder for use with a cassette assembly for cleaning and preparing dental tools for use. The dental tool holder includes a body with a set of openings. A set of slits extend through the exterior of the body to the openings for the insertion of tools. Opposite of the openings, a valley can be formed in the body at each slit. Additionally, slots can be provided between each set of one slit and one opening.

Abstract: A device to store at least one set of orthodontic pliers. The device includes a case consisting of a material which is impenetrable to light and at least one storage housing. The storage housing includes a flap mounted to move rotatably between a closing position and an opening position. In the closing position, the flap creates an insertion opening and in the opening position, the flap is at a distance from the storage housing and provides access thereto. A holder comprises a narrowing formed in the storage housing or in the region of the insertion opening, by the cooperation of the inner surface of the storage housing and the flap in the closing position.

Abstract: An intra-oral appliance for delivering light waves from inside the mouth directly to the oral tissues via a clear, mouthguard positioned on the user's upper and lower teeth, having a series of light emitting diodes disposed on buccal and lingual sides of the appliance and an antenna or data connector for wireless or wired control and application of light waves of a variety of wavelengths to the oral tissues via the LEDs.

Abstract: The invention features a drug delivery device held in the mouth and continuously administering either a fluid comprising drug dissolved and/or dispersed in water or in a non-toxic liquid, or a drug in solid form.

Abstract: Described is a catheter for being retained inside the body for extended periods, and a catheter mating device that can connect to the catheter to move the catheter inside of the body or remove it from the body. The catheter mating device has a stem with an apparatus at its distal end. The apparatus is moveable between a first position and a second position. When in its first position, the distal end is configured to fit in the proximal end of the catheter. When in its second position, the distal end engages the proximal end of the catheter and connects the catheter mating device to the catheter.

Abstract: An adjustable midurethral sling is provided. The adjustable midurethral sling includes a midurethral sling, a frame, an adjustment suture, a housing, two end parts, tunnel opening hooks, outlets, and tunnel opening hook insertion holes. The adjustable midurethral sling is used in a surgical treatment of an involuntary leakage, wherein the involuntary leakage is defined as a urinary incontinence in cases of an abdominal pressure increase as a result of coughing, sneezing etc.

Abstract: An implant for insertion into a patient is provided. The implant includes a three-dimensionally printed structure of layers. Each layer comprises an infill pattern of the three-dimensionally printed structure, the infill pattern of each layer comprising a set of infill lines. The implant includes a plurality of hollow channels. The layers are arranged on top of one another such that the plurality of hollow channels are formed within the implant, wherein the walls of each channel are formed by sections of the infill lines of a plurality of layers of the printed structure of layers. At least one hollow channel extends between a first outer surface of the implant and a second outer surface of the implant. At least one hollow channel is oriented in a direction which is tilted with respect to a reference axis perpendicular to the first outer surface of the implant.

Abstract: Soft tissue grafts, packaged soft tissue grafts, and methods of making and using soft tissue grafts are disclosed. One soft tissue graft includes processed tissue material having first and second opposed surfaces. The first and second opposed surfaces are bounded by first and second edges. The first edge has a concave shape that curves toward the second edge. The second edge has a convex shape that curves away from the first edge. The first surface comprises a plurality of apertures. At least one of the apertures is formed from a multi-directional separation in the first surface. One method of making a soft tissue graft includes positioning a cutting die on a surface of tissue material, pressing the cutting die into the tissue material to cut the tissue material, and processing the cut tissue material to create processed tissue material.

Abstract: Various devices are described to provide filtering of flow from the aorta to the left carotid artery and the right carotid artery. The filters can be brought into a desired position through one or more peripheral arteries. A single filter device can provide the desired filtering or a plurality of devices can be used. In particular a single filter device can span between the brachiocephalic artery and the left carotid artery. These filter devices can be used effectively to capture emboli generated during procedures on the heart so that emboli do not travel to the patient's brain where the emboli can cause a stroke or other adverse event. In particular, these filters can be used during percutaneous procedures on the heart, such as endovascular heart valve replacement.

Abstract: The invention provides a filter assembly including a string or wire such that a lasso type cincture is effected, said filter being openable and closeable while in deployed within a bodily vessel. A string lengthen or shorting adjustment mechanism, such as a ratchet or reel allows more length of string into the device or alternatively to shorten the length of available string in the system. The described invention, when used to ameliorate venous clots and most arterio-venous dialysis grafts, a filter-tipped aspirator is used downstream from the clot to capture and remove dislocated emboli. A method of using same is disclosed.

Abstract: A structure of aligned (e.g., radially and/or polygonally aligned) fibers, and systems and methods for producing and using the same. One or more structures provided may be created using an apparatus that includes one or more first electrodes that define an area and/or partially circumscribe an area. For example, a single first electrode may enclose the area, or a plurality of first electrode(s) may be positioned on at least a portion of the perimeter of the area. A second electrode is positioned within the area. Electrodes with rounded (e.g., convex) surfaces may be arranged in an array, and a fibrous structure created using such electrodes may include an array of wells at positions corresponding to the positions of the electrodes.

Abstract: A stent comprising a tubular member, a lumen extending through the tubular member, a first retention structure and a second retention structure at opposite ends of the tubular member. The first retention structure comprises multiple coils and a removable anti-coiling material over the multiple coils of the first retention structure to present the multiple coils as an elongated extension of the tubular member, whereupon removal of the removable anti-coiling material at least one of the multiple coils of the first retention structure is presented and any excess coils can be trimmed.

Abstract: Stent graft devices are disclosed that include a trifurcation of a main body into three branch lumens. The devices may be used to treat thoracoabdominal aortic aneurysms. The three branch lumens may split at a common point or plane in the device. One or more of the branch lumens may further split, such as bifurcate, in order to perfuse branch vessels of the aorta.

Abstract: The application relates to an apparatus which comprises at least one portion of artificial skin (103) and a plurality of sensors (105) dispersed within the at least one portion of artificial skin (103). The plurality of sensors (105) have at least one physical property which is configured to be modified when the plurality of sensors (105) are exposed to a parameter such that the modification of the physical property can be detected by an external detector (211). The application also relates to detection systems comprising such apparatus.

Abstract: Embodiments here provide a method of manufacturing including steps of determining a dimension of a three dimensional prosthesis wherein an external contour matches the three dimensional contour of the anatomical structure of the person and a three dimensional internal architecture is incorporated that includes of a plurality of void spaces separated by a plurality of internal walls wherein the three dimensional internal architecture is selected to match the first Young's modulus of elasticity specific to the anatomical structure of the person and the prosthesis is dispensed layer by layer using additive manufacturing technique. Filler material is chosen in filled in at least one of the plurality of void spaces separated by a plurality of internal walls. The desired elastic and mechanical properties close to natural anatomical structure of a person is achieved.

Abstract: An intraocular drug delivery platform for use with an intraocular lens assembly. The platform includes a ring and haptics to maintain the ring in position in the capsular bag, compartments on the anterior surface of the ring for accommodating a drug eluting matrix or other drug mass, and a skirt extending posteriorly from the posterior surface of the ring to constrain movement, including lateral or inferior/superior movement, of the intraocular lens relative to the ring.

Abstract: Provided are ophthalmological implants comprising an active ingredient release system which, when the ophthalmological implant is implanted, delivers at least one pharmacological active ingredient, the active ingredient release system comprising at least one hydrogel as a matrix, the hydrogel forming a layer on an optical portion of the implant, binding covalently to the optical portion and being charged with the at least one active ingredient. Also provided are methods for producing the ophthalmological implant comprising the active ingredient release system.

Abstract: An intraocular lens insertion apparatus which allows the intraocular lens to behave more stably. The intraocular lens insertion apparatus includes a substantially tubular apparatus body which has, at a tip end thereof, an insertion tube part for inserting an intraocular lens in a folded state into an eye, the intraocular lens having a lens body and a support, a storage which stores the intraocular lens, and an extruding member which moves the intraocular lens in the insertion tube part by pushing the intraocular lens, and the extruding member has a tip end part having a first protrusion protruding to one side in a left-right direction and a second protrusion protruding to the other side in the left-right direction.

Abstract: The present invention relates to an aspherical multifocal intraocular lens with large depth of field, the intraocular lens having an anterior optical surface and a posterior optical surface, wherein one optical surface is distributed with an aspherical surface which plays a role of expanding the depth of field, and the other optical surface is distributed with a multifocal structure which plays a role of providing two or more focal points. The aspherical surface provides a depth of field matching with an absolute value of a difference in refractive power of at least one pair of adjacent focal points of the two or more focal points provided by the multifocal structure. The aspherical surface, on the one hand, allows a continuous visual range between the focal points and, on the other hand, extends near vision in the direction of near focal point through the depth of field, thereby enabling continuous, uninterrupted full-range vision and adequate near vision.

Abstract: The present disclosure provides systems and methods for a replacement mitral valve. The replacement valve may be made of a less rigid material thereby allowing the packed diameter of the replacement valve to be decreased. The less rigid replacement mitral valve may include a ventricular portion and a central portion. The ventricular portion may include a guide channel. A wire may be advanced into the guide channel. The wire in the guide channel may increase the stiffness on the ventricular side of the replacement valve. The increased stiffness may prevent the replacement valve from collapsing through a native valve annulus.

Abstract: A prosthetic heart valve includes a support structure and a valve assembly disposed within the support structure, the valve assembly including a plurality of leaflets. Each leaflet is formed from a predetermined leaflet material. Some leaflet materials include a metal body with a plurality of openings. The metal body may be coated with a polymer. Other leaflet materials include natural mammalian tissue subjected to a plastination preservation process.

Abstract: In some embodiments, a method for transfemoral retrieval and/or repositioning of a prosthetic valve implanted within a heart includes inserting a retrieval assembly through a femoral vein and into a heart until a distal end portion of the retrieval assembly is disposed in an atrium of the heart. The prosthetic valve is formed with a shape-memory material. The retrieval assembly includes an outer catheter, a middle catheter, a snare catheter, and a snare member. The snare member is moved distally out of a lumen of the snare catheter and into engagement with an inner frame of the prosthetic valve. The retrieval assembly can invert an outer frame of the prosthetic valve to collapse and retract the valve into a lumen of the retrieval assembly. In some embodiments, a positioning catheter can be inserted through the apex of the heart to assist in positioning and inverting the prosthetic valve.

Abstract: A valved conduit including a bioprosthetic aortic heart valve connected to a tubular conduit graft forming an ascending aorta. The conduit graft may attach to the heart valve in a manner that facilitates a redo operation in which the valve is replaced with another valve. A sewing ring may be pre-attached to the inflow end of the graft, and then the valve connected to a delivery holder advanced into the graft and secured to the sewing ring. Dry bioprosthetic valves coupled with conduit grafts sealed with a bioresorbable medium can be stored with the delivery holder.