144 results about "Nasal tip" patented technology

A nasal mask assembly is configured to provide a direct flow of a fluid, e.g., breathable air, oxygen or anesthesia, directly into the patient's nasal cavity by combining the nasal prongs of a nasal cannula with a nasal cup. The nasal cup is made of clear plastic and has a general shape of a human nose such that it easily and comfortably fits over a patient's nose. An input port extends through the nasal cup into the internal cavity of the nasal cup and a fluid source is connected to the input port via a source tube system. The nasal cup can be molded to approximate the surface of a patient's face surrounding the patient's nose. The nasal prongs are extended in length. The source tube is rotatably connected to the external end of the input port of the nasal cup.

A mask system includes a cushion for a mask that seals at its upper extent in a region of the nose that is generally above the tip of the nose or pronasale, and extends across a portion of the cartilaginous framework, alar or flares of the patient's nose, e.g., not extending over or across the bone nasal bone of the patient's nose.

The invention discloses a control method and a control device for camera shooting. The control device is provided with a main camera and an auxiliary camera of which the shooting direction forms a preset angle with that of the main camera. The control method comprises the following steps: detecting a plurality of two-dimensional face images among the images in the pictures shot by the main camera, positioning the positions of the eyes and the nasal tip in each two-dimensional face image, determining the three-dimensional face template matched with each two-dimensional face image based on the positions of the eyes and the nasal tip in each two-dimensional face image and the deep face information shot by the auxiliary camera, then respectively establishing the reorganized three-dimensional face characterizing the head attitude of the corresponding person in a multiple-person group scene based on the matched three-dimensional face template, and finally calculating to quantify the attention direction of each reorganized three-dimensional face so as to estimate the head attitude. By using the head attitude estimation to obtain the attention direction of each reorganized three-dimensional face, the invention can automatically adjust the shooting direction and / or the focal length of the main camera, thereby improving the efficiency and the accuracy of shooting adjustment.

A cushion pad for a mask worn by a patient, comprising a first side to contact skin of the patient, and a second side, opposite the first side, to contact or face the mask. The pad has a main body portion having a central portion shaped to cover a portion of the patient's nose extending from above the nose tip to the nasal bridge region without obstructing the patient's line of sight, and lateral side portions to extend downward and terminate along the sides of the nose or on the patient's cheeks. The main body is made of a breathable material, e.g., foam. The pad may include adhesive and / or an attached portion, e.g., a ring, to couple the pad to the patient and / or portion of the mask.

Dental apparatus (10) comprises a disposable nosel tip (11) for a three-way syringe device (12) for spraying air or water. The nosel tip (11) comprises an assembly of two coaxial tubes (20, 21) which can be readily attached / detached from the syringe device (12), such attachment can be effected directly or via an adaptor (26) which allows the nosel tip (11) to be connected to a number of different devices. The nosel tip (11) is constructed from a plastics material which facilitates disposability.

The invention concerns a nasal cannula assembly (10) adapted to deliver gases to a patient comprising a first compartment (1) and a second compartment (2) separated by a separation wall (6); a pair of nasal prongs (5) in fluid communication with the first compartment (1); the first compartment (1) comprising a first inlet (11) for introducing a first gas into said first compartment (1); the second compartment (2) comprising a second inlet (2) for introducing a second gas into said second compartment (2); and the separation wall (6) comprising at least one flow restriction element (35) for controlling the passage of gas from the second compartment (2) to the first compartment (1).

Novel bioabsorbable, columellar strut implants are disclosed. The struts are useful in rhinoplasty and nasal reconstruction surgical procedures. The devices have opposed lateral sides connected to a spine member to form a tissue-receiving channel.

The invention provides a face deflection angle detection method and device and a face pitch angle detection method and device, and belongs to the technical field of computers. The face deflection angle detection method comprises the following steps of: obtaining position coordinates of a nasal tip point, a first appointed point and a second appointed point in a to-be-processed face image, wherein the first appointed point and the second appointed point are symmetrically distributed relative to the nasal tip point; determining a position coordinate of a foot point from the nasal tip point to the connection line of the first appointed point and the second appointed point; and determining a face deflection angle in the to-be-processed face image on the basis of a specific value of a distance from the first appoint to the foot point to a distance from the second appointed point to the foot point. By adoption of the face deflection angle detection method, the correctness of the determined face deflection angle can be improved.

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 nasal opening device. The nasal opening device includes a vertical splint configured to extend from an upper portion of a nose to a lower level of nasal bones and a horizontal splint configured to extend from a first lateral wall to a second lateral wall of a nose. A vertical flexible member is integrated with said vertical splint and positioned such that upon attachment of the vertical splint to a nose the flexible member is adjacent to a nose tip and assists with maintaining a nose tip in an elevated position, said vertical splint having an adhesive layer for attachment to a nose. A flexible member is integrated with said horizontal splint and extends from said first lateral wall to said second lateral wall of a nose.

An improved inflatable, tapered tip nasopharyngeal airway allows for comfortable self insertion and provides a clear airway for patient breathing in those with obstructive sleep apnea (OSA).

An aiding apparatus for nasal tip plasty is useable in augmentation rhinoplasty. The aiding apparatus for nasal tip plasty includes a strut part and a holding part provided on a lower portion of the strut part and coupled to septal cartilage. Thus, a cartilage scaffold complex useable in nasal tip plasty may be easily prepared at the exterior of an operation space. This aiding apparatus allows substitution for the paired batten graft or paired spreader graft and easier execution of caudal septal extension graft. Further, a decreased amount of cartilage is used to execute the nasal tip plasty in a simple way, therefore easily making a pretty nose, in addition to shortening the operation time.

The invention discloses a three-dimensional face feature point positioning method based on a noise reduction self-coding network. The method comprises the following implementation steps: extracting anose tip point coordinate from a messy face point cloud; extracting a human face region through the position of the nose tip point and preprocessing the human face region; and training a face model, carrying out manual region segmentation on the face by the model, and dividing the to-be-detected face into a plurality of regions according to the segmented face and a rigid matching algorithm; performing shielding detection on each region, and converting the shielding degree into coefficient representation; training a noise reduction auto-encoder for each divided shielding area, wherein each noise reduction auto-encoder outputs a feature point positioning result; fusing the positioning results of the plurality of feature points through the shielding coefficient to obtain a final result, and finishing the whole fixed point algorithm.

An artificial nose part for beautifying nose may be artificial nose back, artificial nose apex, or artificial nasal septum, and features its sublobe structure. Its plastic material includes the ones respectively for nose back, nose apex and nostril supporter. A knife for carving said plastic material is also disclosed.

The invention discloses a preparation method of a nose bridge prosthesis for plastic surgery, relates to the field of orthopedic medical technology, and aims to solve the problem that the existing silicone rubber nose bridge prosthesis is easy to shift and to be worn after being implanted. The preparation method comprises the following steps: a, pressing a nose back part substrate and a nose tip part substrate; b, surface treating of the nose back part substrate; and c, connecting the nose back part substrate and the nose tip part substrate. The surface treating of the nose back part substrate comprises the following steps: (1), preparation, preparing casting feed liquid; (2), infusion, submerging the nose back part substrate totally into the feed liquid and drying after taking out; (3), sanding, performing sanding operation to the nose back part substrate after submerging; and (4), vulcanization, vulcanizing, cleaning and drying the nose back part substrate after sanding. The invention is especially suitable for manufacturing the nose bridge prosthesis.

The invention discloses a nasal prosthesis. The nasal prosthesis comprises a nasal tip, a nasal columella and a noise bridge, wherein the nose bridge is connected with the nasal columella through the nasal tip, the nose bridge comprises a surface layer used for finalizing the shape and an attaching layer used for being attached to the nose, and the hardness of the attaching layer is smaller than that of the surface layer. According to the nasal prosthesis, because the hardness of the attaching layer is smaller than that of the surface layer, after the attaching layer is attached to the nose, the shape can be adjusted more easily according to the contour of the nose, a gap between the nose bridge and the attaching layer is filled in, and even though processing accuracy is low, the attaching layer can be effectively attached to the nose. The nasal prosthesis is simply engraved by a doctor and even can be used without being engraved, much work is saved, efficiency is improved, the requirement for the engraving skill is lowered, and operative difficulty and cost can be reduced easily. The surface layer of the nasal prosthesis is made of hard materials and can be used for being well shaped, and it is guaranteed that the nasal type is stable and the nasal prosthesis is not likely to be sunken or unsmooth. Thus, while the attaching degree is improved, the postoperative effect is guaranteed.

An aiding apparatus for nasal tip plasty is useable in augmentation rhinoplasty. The aiding apparatus for nasal tip plasty includes a strut part and a holding part provided on a lower portion of the strut part and coupled to septal cartilage. Thus, a cartilage scaffold complex useable in nasal tip plasty may be easily prepared at the exterior of an operation space. This aiding apparatus allows substitution for the paired batten graft or paired spreader graft and easier execution of caudal septal extension graft. Further, a decreased amount of cartilage is used to execute the nasal tip plasty in a simple way, therefore easily making a pretty nose, in addition to shortening the operation time.

The invention discloses a feature modeling method for human face identification. The method comprises the steps of presetting 22 key feature points, wherein the 22 key feature points specifically include two angular points of each eyebrow, two angular points of each eye, an uppermost point and a lowermost point of each eyelid, a nasal tip point, two nasal wing points, two angular points of the mouth, an uppermost point and a lowermost point of an upper lip, an uppermost point and a lowermost point of a lower lip, and a lower jaw point; according to a preset calibration sequence of the key feature points, manually calibrating the key feature points in a training sample; according to a human face image as the training sample, generating a group of feature point coordinate data, and forming a group of shape vector training samples; and according to the shape vector training samples, building a global shape model and a local texture model. A changing track of the positions of the selected key feature points can represent change of facial emotions more accurately, so that the accuracy of human face emotion identification can be effectively improved.

The invention concerns a nasal cannula assembly (10) adapted to deliver gases to a patient comprising a first compartment (1) and a second compartment (2) separated by a separation wall (6); a pair of nasal prongs (5) in fluid communication with the first compartment (1); the first compartment (1) comprising a first inlet (11) for introducing a first gas into said first compartment (1); the second compartment (2) comprising a second inlet (2) for introducing a second gas into said second compartment (2); and the separation wall (6) comprising at least one flow restriction element (35) for controlling the passage of gas from the second compartment (2) to the first compartment (1).

The invention relates to a device for suctioning nasal secretions, including a nasal tip (132) having an opening (134) through which the nasal secretions are suctioned, a first pipe (138), a first end of which is connected to the nasal tip (132) and the other end of which communicates via a first opening (140), and a second pipe (142), one end of which communicates via a second opening (144), characterised in that the two pipes (138, 142) form an angle of no more than 90 DEG , and the opening (140) connected to the nasal tip is aligned with the second pipe (142) and arranged within the air stream exiting the opening (144) of the second pipe (142).

An instantly sticking type nasal mask comprises a filtering basic layer and a stickup layer. The stickup layer is in a ring shape and is fixed on the edge of the filtering basic layer; the middle of the filtering basic layer is provided with wrinkles; a ridge line formed by the wrinkles is provided with an elastic gap. The stickup layer of the instantly sticking type nasal mask is in the ring shape corresponding to a nasal tip, nasal alar ridge lines on the two sides of a nose and a nasolabial line, the stickup area of a nasal columellar is omitted, and the obstruction of the stickup area to a respiratory airflow is reduced. A filtering area is provided with the wrinkles, the wrinkles increase the superficial area of the filtering basic layer and increase the integral breathing area, and therefore the breathing area is larger than the sectional area of nostrils. The ridge line of the wrinkles is provided with the elastic gap, when expiration is carried out by a user, the elastic gap is pushed by the airflow to be opened, the airflow breathed out can be directly exhausted without filtered, the passing speed of the airflow is increased, and the breathing smooth degree of the user is improved. When the breathing is still, the elastic gap is automatically closed due to the elastic action of materials themselves. When inspiration is carried out, the elastic gap generates opposite direction movement because the bevels on the two sides of the gap are extruded by the inwards airflow, the closing is more compact, and accordingly, the externally polluted air can be avoided from being directly breathed in by a human body through the elastic gap.

The invention relates to a human face living body detection method and device based on an infrared image, computer equipment and a storage medium. The method comprises the steps of obtaining a face infrared image of an area where a face is located from an infrared image containing a face object; acquiring a face minimum region image, a lip part region image and a cheek part region image from the face infrared image according to the position and distance relationship of the face key points in the face infrared image; wherein the face key points at least comprise a left eye pupil, a right eye pupil, a nose tip, a left mouth corner and a right mouth corner; respectively sending the obtained face minimum region image, lip part region image and cheek part region image into deep convolutional neural networks trained by respective images to carry out binary classification detection; and if the three detection results are living bodies, judging that the human face object in the current infrared image is a living body. By adopting the method, the accuracy of living body detection can be improved.

The invention discloses a 3D face identification method under local shielding conditions based on radial lines. The method comprises steps that (1), the radial lines emitted from a nose tip point areextracted, and the part of the radial lines above the nose tip point is uniformly sampled; (2), local areas among sampling points are extracted, and a local characteristic descriptor is further constructed; (3), a cost function of the characteristic descriptor is constructed, and similarity vectors having local matching characteristics and corresponding to the radial lines is generated; (4) the similarity vectors corresponding to the radial lines are matched to acquire similarity values, sum of the similarity values of all the radial lines is a similarity value of two 3D faces, so face identification is accomplished. The method is advantaged in that through intercepting and sampling the radial lines, the local areas among the sampling points are extracted, the local characteristics are further extracted, the effective information of the radial lines is enhanced, and thereby accuracy of 3D face identification under the local shielding conditions is improved.

Novel bioabsorbable, columellar strut implants are disclosed. The struts are useful in rhinoplasty and nasal reconstruction surgical procedures. The devices have opposed lateral sides (20, 40) connected to a spine (30) member to form a tissue-receiving channel.

The invention discloses a human face contour extracting method, wherein the difficulty of subsequent treatment is reduced by standardizing the size of an image to be treated; and the influence of illumination on human face extraction is reduced according to the human face natural quality of three parts and five holes and with dependence on the average contours of human faces. Therefore, the human face contour is fitted through the intersection point of a ray passing through the nasal tip with the human face contour and then by finding out a demarcation point; and the accuracy is higher.

The invention relates to an allogenic decalcified bone material used for re-shaping and filling of the nose, and a preparation method thereof. The allogenic decalcified bone material comprises a nasal bone matrix prepared from allogenic decalcified bone. The nasal bone matrix comprises a nasal tip, a nasal columella and a nasal bridge, wherein the nasal bridge is connected with the nasal columella via the nasal tip; a narrowing transition section is arranged between the nasal bridge and the nasal tip, and the width of the transition section is smaller than the width of the nasal bridge; the lower part of the nasal bridge is composed of two V-shaped nasal bridge sections arranged in a cross manner; and the nasal bone of a human body is positioned between the two nasal bridge sections, so a prosthesis is prevented from displacement and wearing. The invention has the beneficial effects that through designing of the nasal bridge sections, the prosthesis closely contacts with the nasal bone and is prevented from displacement or wearing; and holes in the nasal bridge allow body fluids to flow into the holes and human tissue to grow into the holes, so a nose and the nasal prosthesis are integrated, movement, falling and festering of the nasal prosthesis are prevented, and postoperative pain in a patient is avoided. The preparation method is applicable to treatment of allogeneic bone.

The invention discloses a method for conducting upright correction on three-dimensional lie-down craniofacial models based on geodesic lines. The method includes the steps that first, for each craniofacial model, the uniform angle geodesic line in the model is extracted from a nasal tip point, each geodesic line is evenly divided according to the geodesic distance from the nasal tip point to the other end of the geodesic line, and the equal division points on the geodesic lines are used as features points of the corresponding three-dimensional craniofacial model; then, the motion vector from the feature point on each three-dimensional lie-down model to the corresponding feature point on an upright model in sample space is calculated, statistic models are established for the feature points and the motion vectors of the feature points, and the model change rules under the two different postures are counted. The motion vectors of the feature points of the lie-down craniofacial models to be corrected are determined according to the statistic models, and the deformation from the lie-down craniofacial models to the upright craniofacial models is determined according to the motion of the feature points. By the adoption of the method, the three-dimensional lie-down craniofacial models can be accurately corrected into the upright models, and great application value is achieved in the fields of forensic anthropology, occlusalf surface shaping and the like.

Novel bioabsorbable, columellar strut implants are disclosed. The struts are useful in rhinoplasty and nasal reconstruction surgical procedures. The devices have opposed lateral sides connected to a spine member to form a tissue-receiving channel.

The invention discloses a quantitative analysis method suitable for abdominal subcutaneous fat of a primate laboratory animal. The method comprises the following steps of (1) allowing the primate laboratory animal to be in a lying manner, connecting a glabella, a nasal tip, a center joint between front teeth, a connection middle point between nipples and a navel of the animal into a line when the animal is put, and carrying out abdominal scanning on the animal by use of MRI (Magnetic Resonance Imaging); (2) carrying out contrast enhancement adjustment on an original image, equalizing an image histogram, adjusting image filtering, and extending a pixel value to be 0-1; (3) manually selecting a regional growth initial point by use of a regional growth method to complete image segmentation for the first time; (4) carrying out mean filtering again on the fat segmentation area for the first time completed in step (3), filtering, then fuzzifying an image region, and carrying out regional growth treatment for the second time; (5) calculating a cross sectional area of the corresponding abdominal subcutaneous fat in an ith-layer image by use of a formula Si=Ni*P; and (6) calculating a fat mass by use of the formula as shown in the description.