37 results about "Jaw Region" patented technology

A device for reshaping human or animal bone with bone replacement material includes at least two spaced apart implants and a bar connected to the at least two spaced apart implants and bridging at least one reshaping location. The bar has notches at the longitudinal sides and transverse grooves at the underside. The bar has slotted holes extending in the longitudinal direction of the bar for receiving the implants, respectively, fasteners of the implants.

An osteosynthesis plate is described, which is suitable for treating jaw fractures. The osteosynthesis plate has a plane of the plate as well as two plate sections 12, 14 with associated longitudinal axes 16, 18 extending substantially within the plane of the plate and inclined or staggered with respect to one another. Through openings 20, 22 inclined to the plane of the plate are formed in each of the two plate sections 12, 14. The angular alignments of the through openings 20, 22 within the plane of the plate differ with respect to a longitudinal axis 16 serving as reference line from one another by less than approximately 60°. In applications in the jaw region this slight deviation of the angular alignments permits an intraoral securement of the osteosynthesis plate. A transbuccal access through the cheek can thus be dispensed with.

A dental implant assembly is provided, as well as a system and method for exposing an embedded implant after osseointegration has taken place. The implant assembly comprises an implant member for embedding in the jaw and a rest factor member for securing to the implant member, the rest factor member having an upper rest surface just above the tissue level for opposing an overlying portion of a prosthesis anchored elsewhere in the jaw to form a non-retentive rest or support for accepting down pressure from the prosthesis. The implant member is relatively short and can be installed in distal jaw regions without interference with the mandibular nerve. A bore is cut out in the jaw for receiving the implant, inserting the implant and an attached healing screw in the implant. The implant site is closed and osseointegration takes place over an extended period. Subsequently, the implant site is uncovered, the healing screw is removed, and the rest factor member is secured in the implant.

A device for maxillary jawbone and dentition expansion and / or retraction is configured for mounting within the mouth and connects the right and left halves of the skull. The maxillary distraction device includes at least two implantable anchors configured to be implanted in the maxillary bones of the skull on opposite sides of a midline of the skull. A facebow having two posterior ends is connectable to the implantable anchors and is configured to extend from the maxillary regions entirely within the mouth across the midline of the skull. The facebow has at least one expandable section for bone lengthening. The facebow is connected to the anchors and is lengthen periodically to lengthen the maxillary bones. The facebow may provide horizontal, vertical, and transverse distraction.

A screw-in enossal dental implant comprising a base body with a thread arrangement which can be multiple-threaded, and notches, in addition to an upper part and a bulged enossal part. The thread arrangement on the base body is defined by parabolic curves forming intersection points outside the area of the dental implant. The thread arrangement extends as far as the upper part. The flank angle of the thread flanks is 20 DEG. The transition between the base body and the bulged enossal part is rounded. The maximum depth of the notches is ⅓ of the diameter of the base body and the width thereof is at least as large as the width of the respectively remaining thread arrangement between the notches. The dental implant causes the compression forces acting upon the jaw bone to tend unevenly towards zero as the screw-in depth increases, enabling reliable fastening in the enossal area.

A facemask for skiing, snowboarding, and other winter sports integrates with traditional goggles by use of a temple-trough system that secures the goggle headband and places the goggle headband on top the facemask headband. Diffusing foam circumscribing voids at the cheek areas provides even ventilation and prevents over chilling of the cheeks. Foam at the perimeter of the mask and at the nose bridge area keep the mask off the user's mouth and nose tip. The design at the jaw region allows movement of the head and the use of a jacket collar or scarf. In an alternative embodiment, a bridge-flare system at the nose area allows the mask to conform to a wide variety of nose sizes and shapes.

A technique for installing in the maxilla of a patient a dental implant assembly having a root section, a post section and a nut or locking element section. The root section is treaded to define a self-tapping screw which at its rear end is attachable to the post section and at its front end to the locking element section. To carry out this technique, the root section is screwed into a hole bored in the maxilla, the nose at the front end of this section then projecting into tie adjacent sinus cavity. The membrane lining the sinus cavity is lifted to admit the locking element section which is then attached to the nose to lock the root section to the maxilla. Then a charge of bone particles is deposited in the cavity to cover the nut section and the surrounding maxilla region. In a time period lasting several months, the bone particles gradually fuse with and graft onto the maxilla to augment its structure and embed the locking element section therein. Concurrently in the same period, the root section proceeds to fuse with the maxilla. This period of concurrent activity represents the total time it takes to complete the dental implant installation, after which it is feasible to mount a dental bridge on the post section.

IMPROVEMENTS INTRODUCED IN A CRANIAL PROTECTION CELL, formed by an outer shell (11, 20) internally coated by absorbent material (12, 12′), said material comprising a first layer (21) immediately below the shell, of closed cell foam, rigid or semi-rigid in contact with a second layer (22) of open cell viscoelastic foam, the interface between said first and second layers being provided with interdigitations comprising cavities (24) in said first layer in which protrusions (23), provided in said second layer, fit in a complementary and cooperative manner. Absorbent supporting material are further provided in the jaw region (32), maxillary regions (33, 34) and mastoid regions. When closed, the visor (37) is embedded in the corresponding opening of the cranial protection cell, and its opening occurs in two steps, the former comprising forward movement, and the latter upward rotation. The cranial protection cell (CPC) further comprises a removable chin guard (54) whose unlocking mechanism is driven by buttons (51) located on either side of the shell.

Infrared face image data is obtained (11) on a person (P) who is a subject of discrimination using an image signal (VDA) from a television camera (2A); the cheek region and jaw region temperatures of the subject (P) are sampled based on the infrared face image data; the averages of the temperatures are calculated (15, 16); cheek data / jaw data is calculated (17); and a cheek emphasized variance value is calculated (18). The cheek data / jaw data and cheek emphasized variance value are mapped on an XY plane (19), and gender discrimination of the person (P) is conducted based on the result. In addition, gender discrimination is conducted using the cheek data / jaw data (21) and gender discrimination is conducted using the cheek emphasized variance value (22), and gender identification is conducted in accordance with agreement between two or more of the multiple gender discrimination results (24).

A hand tool having first and second plier units attached to one another where a jaw region is operatively configured to have a work piece to be placed therein and a handle region is configured to be used by the user of the tool to grasp the work piece. A tension member is provided to be positioned past a dead point axis so as to apply a clamping force upon the jaw member and the hand tool maintains a grip upon the work piece without continuous interaction with the user of the tool.

The invention discloses a skin aging trend acquisition method and apparatus. The method comprises: collecting wrinkle features of multiple women within a set age range and storing the wrinkle features to a cloud database; collecting an original face image of a testee and performing binarization processing; determining the sizes, positions and distances of irises, the nose wings and mouth corners; calculating a highest hairline point, a cross point between a parallel line and a perpendicular bisector of a highest eyebrow point, a highest upper lip point, a lowest lower lip point, a lowest jaw point and a midpoint between the highest hairline point and the lowest jaw point; dividing a forehead region, an eye bag region, a nose wing region and a jaw region; and performing wrinkle extraction, comparing an extracted wrinkle picture with picture samples stored in the cloud database, extracting a matched picture sample from the cloud database, and embedding the matched picture sample into a corresponding position of a facial contour of the testee. The skin aging trend acquisition method and apparatus have the following beneficial effects: the time is saved and the cost is relatively low.

Infrared face image data is obtained (11) on a person (P) who is a subject of discrimination using an image signal (VDA) from a television camera (2A); the cheek region and jaw region temperatures of the subject (P) are sampled based on the infrared face image data; the averages of the temperatures are calculated (15, 16); cheek data / jaw data is calculated (17); and a cheek emphasized variance value is calculated (18). The cheek data / jaw data and cheek emphasized variance value are mapped on an XY plane (19), and gender discrimination of the person (P) is conducted based on the result. In addition, gender discrimination is conducted using the cheek data / jaw data (21) and gender discrimination is conducted using the cheek emphasized variance value (22), and gender identification is conducted in accordance with agreement between two or more of the multiple gender discrimination results (24).

The invention relates to the field of image processing, and provides a three-dimensional jawbone image segmentation method based on CBCT, and the method comprises the steps of extracting a plurality of image sub-sequences from a to-be-segmented CBCT image, inputting the image sub-sequences into a trained convolutional neural network model, and correspondingly obtaining a plurality of segmentationresults; integrating the segmentation results to obtain a three-dimensional jaw bone segmentation result of the CBCT image to be segmented, wherein the trained convolutional neural network model is obtained through the following steps: constructing a convolutional neural network model; preprocessing the CBCT image with the segmented and marked jawbone, extracting an image sub-sequence from the CBCT image as a training sample, and training the convolutional neural network model. Meanwhile, the invention further provides a corresponding three-dimensional jaw image segmentation device based on CBCT and terminal equipment. The embodiment provided by the invention is suitable for extracting the image of the three-dimensional jawbone region from the CBCT image.

The invention relates to a dental implant guide plate based on 3D printing. The dental implant guide plate based on 3D printing comprises a base body and a guide hole. The base body comprises a positioning part for opening the guide hole and a fixing part integrally connected to the lower end of the positioning part. A planting point sleeve is arranged in the guide hole, a notch is formed in the guide hole, and an adapting block matched with the notch is arranged on the planting point sleeve. The planting point sleeve is fastened in the guide hole, in the process of a medical drilling tool penetrating through the guide hole to drill human bones in the gingival, drill bit displacement is avoided, and the positioning accuracy of the dental implant guide plate is improved. The invention further discloses a method for the implant dental guide plate based on 3D printing. The method comprises the steps that 1, a plaster model is manufactured; 2, three-dimensional models of the teeth and bones of the mouth and jaw region of a patient are reconstructed; 3, three-dimensional model data of the dental implant guide plate are obtained; and 4, the dental implant guide plate is printed. The 3D printing technology is adopted, the manufacturing cycle of the entire reconfigurable guide plate is shortened, and the rapid production of a base plate and the field reconstruction of the guide plate are achieved.

A hand tool having first and second plier units attached to one another where a jaw region is operatively configured to have a work piece to be placed therein and a handle region is configured to be used by the user of the tool to grasp the work piece. A tension member is provided to be positioned past a dead point axis so as to apply a clamping force upon the jaw member and the hand tool maintains a grip upon the work piece without continuous interaction with the user of the tool.

The invention relates to a method and system for determining a sharp panoramic image constructed from a group of projection images, especially the invention relates to defining a structure of the panoramic X-ray image of an area of a dentition and of jaws. The structure of a panoramic image to be generated from a group of projection images is determined by at least two crucial parameters, namely parameters of the central surface S of the sharp layer and thickness t(s) of the sharp layer, using penalty function F(S,t), which is at least a penalty function F3(S,t) of low-frequency changes in the computed panoramic image corresponding to the choices S and t(S). After computing F3(S,t) the best center surface and thickness function (in other words the sharpest layer of the panoramic image) is obtained by minimizing said penalty function F(S,t) over parameter space.

An anchoring receiver is implanted into a jaw bone region of a user and a novel screw and false tooth may be threadably inserted into the anchoring receiver. As the screw and false tooth member is screwed into the anchoring receiver, a biasible slit that bifurcates a bottom portion of the anchoring receiver may expand outwardly and against the jaw bone region of the user, thus providing a cost effective artificial tooth assembly having improved stability and firmness.

A tool for forging, exhibition forging, and pulling metal boards and profiles, with two clamps that are clamped between them between them and can move in the opposite direction, in order to achieve 镦 Forging, exhibition exhibitions, exhibitionsForging or pulling exercise.The clamps on the same side of the metal board are supported on the support element via a deformable support element, forming a sub -module and fixing through the sleeve.The radial extension part, the radial extension part is placed on the anti -impact ring of the circle bridge connection support element between the support element and the claw claw, and the sleeve with a closed edge is placed on the surrounding clamp. The closed edge and anti -resistanceThe impact ring forms a sliding guidance department, so that the clamping clamp is set in the sleeve in a gap along the radial band.

A rodent immobilizing apparatus for use during experimental procedures, dissection, and sample procurement. The apparatus has two (2) points of adherence to the dissection board, one at the head / jaw region and one at the tail region. Generally, the rodent immobilizing apparatus includes a base, a bed positioned atop the base, a bank disposed along one side of the bed, another bank disposed along the opposite side of the bed, a string / wire hook affixed to each bank with string / wire therebetween, and a tail clip / clamp positioned at an inferior portion of the bed. The bed is slidable along the banks to accommodate different sized rodents. In operation, an anesthetized / euthanized rodent is positioned supine on the bed. The bed slides along the banks, so that the string / wire is hooked within the rodent's jaw. The tail is clamped to the bed, and the bed is pulled back to stretch out the rodent, thus immobilizing the rodent completely and rapidly.

The invention relates to the field of image models, and provides a three-dimensional jawbone image segmentation modeling method based on CT, and the method comprises the steps of constructing a convolutional neural network model; preprocessing the CT image with the segmented and marked jawbone, extracting an image sub-sequence from the CT image as a training sample, and training the convolutionalneural network model to obtain a trained convolutional neural network model, wherein the trained convolutional neural network model is used for obtaining an image sub-sequence extracted from a CT image to be segmented, and obtaining a segmentation result corresponding to the image sub-sequence after processing, wherein the segmentation result is used for obtaining a three-dimensional jaw bone segmentation result of the CT image to be segmented after integration. Meanwhile, the invention further provides a corresponding three-dimensional jaw image segmentation modeling device based on CT, and terminal equipment. The embodiment provided by the invention is suitable for establishing a segmentation model for extracting the three-dimensional jawbone region from the CT image.

The invention relates to a dental jaw boundary feature automatic identification method. The method comprises the steps of performing three-dimensional scanning to obtain dental jaw three-dimensional data; defining a parabola in the center of a dental jaw region needing to define boundary characteristics; establishing a plurality of sectioning surfaces along a plurality of points on the parabola, wherein the sectioning surfaces are vertical to the parabola; calculating curvatures of a plurality of points on an intersecting line of the section cutting surface and the dental jaw region, and defining a starting point and an ending point of the curvatures from positive to negative; extending the tangent lines of the curves on the two sides of the starting point and the terminal point to intersect to obtain an intersection point A; projecting the point A onto the intersecting line of the section cutting plane and the dental jaw region to obtain a boundary feature point A' on the section cutting plane; and connecting the points A' on the plurality of section cutting surfaces to obtain the three-dimensional characteristic line of the dental jaw boundary. The method can digitalize the logicobserved by oral medical experts, is applied to automatic identification and definition of dental boundary feature points and lines, can greatly improve the intelligence, automation degree and efficiency of software, and can be directly applied to development of related artificial intelligence algorithms.

The invention relates to the field of disposable masks, in particular to a reinforced fitting type mask. The reinforced fitting type mask comprises a mask body and a nose bridge strip arranged in themask body, wherein the mask body comprises a closed end and an open end; the mask body is formed by jointing two sheet bodies along the closed end; ear bands are arranged on the two outer side faces,located at the open end, of the mask body respectively; the closed end is formed by sequentially connecting a nose region, a mouth region and a jaw region; the nose region, the mouth region and the jaw region are respectively linear; a folding part is arranged at the end, away from the mouth region, of the nose region; an included angle between the folding part and the nose region is larger than 2degrees and smaller than 15 degrees; the two sheet bodies are integrally formed in the nose region; and the two sheet bodies are formed in the mouth region, the jaw region and the folding part in a hot-pressing sewing mode respectively. The reinforced fitting type mask solves the technical problems that an existing folding mask is poor in sealing performance and the mask is prone to slide off.

The invention discloses an anti-skid pliers handle for multifunctional folding pliers and a manufacturing method thereof. The main body of the pliers handle adopts an integrated design, and the upper surface and the lower surface are provided with sinking platforms. The surfaces are connected, and the anti-slip part covers the outer surface of the main body of the pliers handle and the area where the sinking platform is located. In this way, the anti-slip part can be firmly combined with the pliers handle, and the upper and lower surfaces of the pliers handle and the side anti-slip parts form a complete whole, which enhances the firmness and anti-slip performance of the anti-slip part. In particular, since the main body of the pliers handle is an integral structure, the main body of the pliers handle can be directly put into the injection mold, and the non-slip part and the pliers handle are integrally formed and closely combined by using the overmolding process. At the same time, a number of ribs arranged in parallel can be provided on the side of the anti-skid component to enhance the anti-skid performance. Through the perfect combination of structure and technology, compared with traditional products and processing methods, the present invention reduces assembly time, improves production efficiency and reduces cost.

The present invention relates to an arched membrane and / or a membrane having rounded edges for regenerating a bone, in particular a distraction membrane, suitable for callus distraction, notably in the jaw region, to the use of the membrane for callus distraction, and to methods for callus distraction.

The invention belongs to the technical field of radiotherapy, and relates to an automatic detection and correction method, device and storage medium for head tilt in CT images. The method includes the following steps: performing binarization operation on the whole body CT image; searching for the maximum connected region, deleting all non-maximally connected regions, and removing the non-main body parts in each layer of CT images, and only keeping the main body parts; judging shoulder The junction layer between the head and the neck; determine the best jaw bone layer; perform ellipse fitting on the jaw bone area in the best jaw bone layer; record the centroid of the jaw bone and the centroid of the fitting ellipse; determine the body position and implement head correction . The invention can quickly and effectively detect the inclination and orientation of the head in the CT image, and then provide accurate parameter information for the inclination correction of the head image; it has the advantages of low computational complexity, short time consumption, high noise resistance, and good data adaptation advantages; this method can also be extended to correct human body tilt in different scenarios, and has good scalability.