41 results about "Cleft palates" patented technology

The invention disclosed is a hydrogel composition for use as dural substitute, for wound closure of cleft palate and regeneration, and as substrate for cell delivery to the eye. The hydrogel is made of a copolymer of (a) an N-substituted (meth)acrylamide, and (b) a hydroxyalkyl (meth)acrylate, which is covalently crosslinked with dimethacrylate monomers. The swollen, gel is in the form of a sheet or membrane that is readily sterilisable, being homogeneous or heterogeneous, non-degradable, non resorbable, elastically deformable, and has an equilibrium water content of at least 50%.

The invention discloses a cleft palate voice glottal stop automatic identification algorithm and device, relates to the technical field of voice analysis and identification, and aims to provide a glottal stop automatic identification method and device. A computer is adopted for automatically identifying cleft palate voice glottal stops, effective and objective auxiliary diagnosis is provided to patients and voice teachers, and wide popularization of cleft palate voice assessment and voice treatment is facilitated. According to the technical key points of the invention, the method comprises the steps of: 1, collecting voice signals of syllables to be tested; 2, carrying out initial and final division on the voice signals of syllables, and retaining initial voice signals; 3, extracting characteristic values of the initial voice signals; and 4, sending the characteristic values into trained identification models, wherein the identification models judge whether glottal stops exist in the voice signals of syllables according to the characteristic values.

The invention belongs to a non-invasive treating method of congenital cleft palate in the medical field, especially relating to a shape appliance digitalizing method of a cleft palate alveolar bone, which comprises the following steps of: 1) obtaining the jaw arch fault information of a cleft palate alveolar bone by using the microscopic CT (computed tomography) technology, wherein the thickness of a scanning layer is 50 mu m; 2) moving the cleft palate alveolar bone segment of a maxillary arch solid model to approach to a normal maxillary arch form from an abnormal form in a simulation manner in reverse engineering software, and simulating and demonstrating the shape change process step by step; 3) obtaining a digitalized model of the cleft palate alveolar bone jaw arch in each stage in the process of remedying according to the simulation and demonstration; 4) manufacturing an appliance retention column digitalized model used in each stage of shaping the alveolar bone according to the digitalized model of the cleft palate alveolar bone jaw arch; and 5) automatically processing a prototype of an alveolar bone shape appliance by using the rapid forming technology. A digitalized designing and manufacturing method of the shape appliance of a cleft palate alveolar bone independent of the experience and handwork of a doctor is provided.

Tunnel bone grafting according to the proposed method can be used when an individual has a facial bone defect due to periodontal disease, cleft palate or trauma. The proposed method can be utilized for implant placement, it reduces wrinkles and supports facial muscle in order to make the individual look younger. The method can also be used to create a thicker alveolar ridge in order to stabilize full dentures or partial dentures. Its advantages over conventional guided bone regeneration techniques is that the proposed method is minimally invasive and lessens trauma to patients, prevents soft tissue opening, and reduces surgery time. Specifically, it minimizes the incision size and thus reduces trauma to the patient. Further, this reduces the risk of complications, including excessive bleeding, due to the minimization of the incision size. There is also considerable reduction in post surgery swelling using the proposed method as opposed to conventional techniques.

A nursing device for feeding infants with a cleft lip and/or cleft palate includes upper and lower portions. The upper portion includes a bottle with an opening in its top for containing a liquid, a nipple and a screw cap for maintaining the nipple in sealing engagement with the opening. A submersible pump is disposed in the bottom of the bottle and connected to an opening in the nipple by a tube. A lower portion of the device includes a motor and a magnetic coupling for activating the pump. A microprocessor control timer includes means for regulating the timing and flow of a feeding cycle with a display for help in regulating the feeding cycle. Alternatively, the motor, pump, controls, and power supply may be disposed at the top of the bottle as a removable unit.

The invention relates to application of an allograft acellular dermal matrix in oral diseases, in particular to application of the allograft acellular dermal matrix in the repairing of cleft lip and/or alveolar cleft, cleft palate and oral mucous membrane defect, the repairing of periodontal defect and gingival recession, the repairing of nasal mucosa, tooth implantation, the repairing of furcation involvement and the prevention of complications such as dry socket after impacted tooth extraction, and belongs to the technical field of biological medical material tissue engineering. The allograft acellular dermal matrix is a product improved by a process, the mechanical performance of the product is suitable for surgery, and the sewing strength of the product is 16-18N; the allograft acellular dermal matrix is free of immunological rejection, capable of fast inducing tissue regeneration, soft in texture after implantation, free of contour feeling and good in in-vivo compatibility and hasa stable stent and template effect.

The invention discloses a cleft palate speech initial and final automatic segmentation method and a cleft palate speech initial and final automatic segmentation system, which relate to the field of speech signal processing technologies, especially a cleft palate speech initial and final automatic segmentation technology. The invention aims to provide an initial and final automatic segmentation algorithm for cleft palate speech to solve the technical problem that an initial and final automatic segmentation algorithm for the cleft palate speech does not exist in the prior art. The cleft palate speech initial and final automatic segmentation method is characterized by carrying out the processing steps on a syllable including an initial: a quasi voiced initial and a quasi voiceless initial distinguish step, which is used for distinguishing whether the syllable is a syllable comprising a quasi voiced initial or one comprising a quasi voiceless initial; an initial and final segmentation step for the syllable comprising the quasi voiced initial; and an initial and final segmentation step for the syllable comprising the quasi voiceless initial.

The present invention relates to the use of D-chiroinositol or a phosphate thereof in combination with folate for the reduction or prevention of congenital deformations such as anorectal malformations, neural tube defects, cleft-lip, cleft palate, and other birth defects. The invention further relates to the use of D-chiroinositol or a phosphate thereof in quieting or preventing the sensitivity of breast tissue to estrogenic, progestogenic, and or anti-androgenic insult, whether from environmental, dietary, or medicinal sources. Co-therapies as well as combination products of D-chiro-inositol (or a phosphate thereof) with at least one of (a) a folate source and (b) one or more of an estrogenic substance, a progestogenic substance, and/or an antiandrogenic substance are also claimed.

The present invention is a device for pre-surgical treatment of cleft lip and cleft palate. The device is extraoral thus reducing the risk associated with existing devices and technologies that are intraoral, such as, for example utilizing a Nasoalveolar Molding (NAM) appliance. The adjustable extraoral nasal molding appliance of the present invention consists of an adjustable and securable head fastener, a front connector with a forehead rest pad, a rod support having an aperture through which a rod is slidably connected, a fastener for locking a rod in a set position, the rod, a spring and at least one nasal bulb. Different shaped springs can be attached for treating unilateral as well as bilateral cleft lip and palate patients. Different nasal bulbs can be attached for treating unilateral as well as bilateral cleft lip and palate patients.

The invention discloses a recognition method of cleft palate speech nasal leakage based on recursive graph analysis, which relates to the field of speech signal processing. The detection method comprises the following steps: (1) preprocessing the speech signal, downsampling the input speech signal, and performing normalizing framing, pre-emphasis and amplitude normalization; (2) obtaining a recursive graph and a matrix recursive graph of the speech signal after the preprocessing; (3) performing trend analysis of recursive graph; (4) directly dividing the region into blocks for recursive graphand performing matrix processing for recursive graph; (5) performing image processing on the recursive image, and subjecting the image matrix after format conversion to binarization processing and filtering with two special structure templates in turn; (6) classifying and recognizing the signal by using classifier to obtain an automatic recognition result. Compared with the prior art, the detection result is objective and accurate, realizes a higher degree of automatic measurement, provides reliable reference data for the clinical digital evaluation of cleft palate speech nasal leakage, meetsthe development needs of precision medicine, and performs more accurate and effective signal classification and recognition.

The invention belongs to the field of medicine soft palate detection, and particularly relates to a soft palate morphology and development detection method. The method is characterized by comprising the following steps of preparing equipment, performing cephalometrics and side position photographing, performing cephalometrics pronouncing side position photographing and performing contrastive analysis on images photographed two times in a PACS, and detecting the soft palate morphology and the lifting height and the velopharyngeal closure condition of the soft palate during pronunciation. Due totwo-time cephalometrics side position exposure, after contrastive analysis, the soft palate morphology and development conditions of an examinee can be displayed, and references can be provided for velopharyngeal closure research and soft palate morphology rebuilding in cleft palate repairing to a certain extent.

The invention discloses a cleft palate surgery training simulator. The cleft palate surgery training simulator comprises a cleft palate simulating unit, a tray, an angle adjusting mechanism and a base, wherein the curved surface shape of the outer surface of the tray simulates the curved surface shape of a human face; the tray is provided with an accommodating cavity at a position simulating the mouth and nose of the human body; the overall structure of the cleft palate simulating unit simulates the structure of the mouth and nose of the human body; the cleft palate simulating unit is made ofan elastic material; a gap simulating cleft palate is formed on the cleft palate simulating unit; the cleft palate simulating unit is placed in the accommodating cavity in order that the tray and thecleft palate simulating unit construct a structure capable of completely simulating the curved surface shape of the human face; the base is positioned below the try; the tray is arranged on the base through the angle adjusting mechanism; and the tray can rotate by a preset angle relative to the base through the angle adjusting mechanism.

The invention provides a method for preparing a congenital cleft palate animal model, and relates to the field of animal models of oral diseases. The preparation method comprises the following steps:pregnant rabbits are treated with dexamethasone for intervention every day for 13 days to 16 days of pregnancy, the pregnant rabbits are fed to production, and offspring rabbits are congenital cleft palate models. The method can efficiently construct the morphologically stable congenital cleft rabbit model, thereby providing a model basis for further clinical research of cleft palate.