15 results about "Parietal bone" patented technology

A non-full-covering single flight vehicle helmet comprises a helmet body, goggles are arranged on the front portion of the helmet body, a temporal bone-occipital bone annular air cushion is arranged on the inner wall of the lower portion of the helmet body, a top bone-frontal bone cap-shaped air cushion is arranged on the inner wall of the upper portion of the helmet body, an inflatable neck support is arranged at the bottom of the helmet body, a gas generator is arranged on the back of the helmet body, and the inflatable neck support is connected with the gas generator through a pipeline. The inflatable neck support is contained in a net-shaped braid arranged along the edge of the bottom of the helmet, the upper portion of the net-shaped braid is connected to an interlayer between the helmet and the parietal bone-frontal bone cap-shaped air cushion, and the net-shaped braid is made of elastic materials. The temporal bone-occipital bone surrounding air cushion and the parietal bone-frontal bone cap-shaped air cushion are both non-trigger type air cushions, are provided with snap fasteners connected with the helmet, and are both of a multi-layer structure. According to the scheme, the non-triggering air cushion is integrated in the helmet, and the triggering type neck support air bag is arranged, so that a pilot is effectively protected.

A patient interface includes a positioning and stabilization structure having a headband, the headband including an annular portion having an upper part configured to cover an upper portion of the parietal bone of a patient's head in use and a lower part configured to cover or be located below the occipital bone of the patient's head in use. The annular portion defines a loop having paired upper strap portions configured to connect between the annular portion and a cushion assembly on respective sides of the patient's head above the bridge of the nose in use. The headband may include a stiffening portion. The headband may be integrally formed by flat knitting, and the strap portion may include a guide to provide a tactile indication of the position of a fastening portion.

The invention discloses a craniocerebral injury device for animal translation, rotation and combination thereof, comprising: a support device which is symmetrically provided with a longitudinal first translation rolling groove and a longitudinal second translation rolling groove at an interval; the brake is arranged in the first translation rolling groove in a sliding manner, and a centrosymmetric brake groove is formed in the brake; one end of the animal fixing device is rotatably arranged in the brake groove, and the other end of the animal fixing device is selectively arranged in the second translation rolling groove in a sliding and / or rotating manner; the impacting device is vertically arranged on the animal fixing device, and one end of the impacting device is selectively pressed on the animal parietal bone; the impact force arm is integrally arranged on one side of the top of the animal fixing device; wherein the impactor selectively impacts the other end of the impact device or the impact force arm. The animal craniocerebral injury simulation device has the characteristic of realizing simulation of animal craniocerebral injuries of different types and different degrees.

A patient interface for treatment of sleep disordered breathing, comprising a positioning and stabilising structure to provide a force to hold a seal-forming structure in a therapeutically effective position on the patient's head, the positioning and stabilising structure comprising at least a first strap portion connected to each lateral side of the plenum chamber and configured to overlie lateral surfaces of the patients head and overlie the parietal bones and / or the occipital bone of the patient's head in use, and a second strap portion having a pair of ends connected to the first strap portion, each end of the second strap portion being connected to the first strap portion at a location proximate a respective one of the patient's ears in use, the second strap portion being configured to overlie a superior region of the patient's head in use.

A headgear for use with a mask includes a first strap being configured to engage a back of a patient's head and extend on either side of the patient's parietal bone behind the patient's ears and assume, in use, a substantially circular or oval shape. At least a portion of the first strap is substantially inextensible. The headgear also includes at least one second strap configured to removably connect the first strap to the mask. The second strap may be more extensible than the first strap. At least a portion of the first strap is self-supporting such that the headgear maintains a three-dimensional shape when not in use. The substantially inextensible portion of the first strap is constructed to resiliently return to a predetermined shape when not in use. The arcuate region includes a first portion that may be arranged to align substantially parallel with a top of the patient's head and a second portion being arranged to align substantially to a rear surface of the patient's head.

The invention discloses a chronic continuous drug delivery method in the ventricle of an experimental animal, and belongs to the technical field of animal model construction. The method comprises the following steps: (1) anesthetizing an animal; (2) longitudinally cutting the skin of the parietal bone along the direction of the occipital bone macropore formed by the midpoint of the connecting line of the two eyes; (3) disinfecting the head and removing connective tissues on the surface of the parietal bone; (4) penetrating through the left ventricle by using a brain stereotaxic instrument; (5) simultaneously connecting a chronic drug delivery pump with a catheter, soaking the chronic drug delivery pump in normal saline for 20-28 hours, taking out the chronic drug delivery pump, filling the chronic drug delivery pump with a tested drug, and injecting the tested drug into the catheter; (6) cutting the catheter to a proper length, inserting the far end of the catheter into the left ventricle, fixing, and after the catheter is dried up, remaining the chronic drug delivery pump under the skin of the head along the opening of the skin of the head; and (7) sewing a head opening. According to the method, insufficient drug effect persistence caused by too high drug metabolism speed can be avoided, and in addition, injury to the tested animal due to multiple times of opening and puncturing can be reduced, so that non-drug influence is reduced.

The present application relates to a kind of skull model and preparation method for head inside irradiation living body measurement device calibration, wherein the skull model includes skull, epidermis layer and radioactive source;The radioactive source is arranged on the surface of the skull, and is located on the skull corresponding parietal bone and frontal bone position;The epidermis layer is fixed on the surface of the skull by pouring, and is tissue equivalent material.The present application sets up radioactive source on the surface of the skull, and uses tissue equivalent material as epidermis layer, to form skull model, the model can simulate the deposition in the skull after human body is taken into parent bone nature nuclide, i.e.as the real human body nuclide intake amount according to the amount of radioactive source setting, so as to more accurately calibrate the scale of head inside irradiation living body measurement device, to improve the measurement precision of human body nuclide activity.

The invention belongs to the technical field of animal dissection, and innovatively provides a rapid dissection method for the skull of a piglet at the age of about 1 month based on development characteristics of the skull of the piglet aiming at the prominent problems of low separation efficiency, incomplete exposure of a brain structure, high operation injury risk and the like in a traditional dissection method for the skull of the pig. According to the method, a CT image is used for assisting in positioning key nodes of a bone seam, and a dynamic shearing force regulation and control technology of special anatomical bone scissors is combined, so that efficient separation of parietal bones and complete exposure of a brain structure are realized. The time for anatomy of the skull of a single piglet is only 1-2 minutes, the meninx tearing rate is reduced to 0.5% or below, qualitative leap is achieved compared with a traditional method, and a revolutionary technical scheme is provided for large-scale animal brain research and slaughter tests.

An equine browband headguard includes a frontal portion and first and second lateral portions devised to protect prominent portions of an animal's head during gameplay in contact sports such as polo. Frontal portion is devised to seat between the zygomatic arches on the animal's forehead to overlie a frontal bone of a pony (or other animal), protecting the sutures between the nasal bone, frontal bone, and parietal bone, as well as the sinus cavity thereunder. First and second lateral portions are devised to overlie temporomandibular joints. The equine browband headguard is devised to install into an existing bridle with minimal reconfiguration, essentially replacing an existing browband. The equine browband headguard has been devised to present a low-profile, elegant addition to the tack of sporting animals engaged in contact sports like polo and may present a surface for team insignia or branding.

A patient interface includes a positioning and stabilizing structure having a headgear including an annulus portion having an upper portion configured to cover a parietal bone of a patient's head in use and a lower portion configured to cover or underlie an occipital bone of the patient's head in use. The girdle portion defines a loop having a pair of upper strap portions configured to be connected between the girdle portion and the cushion assembly on each side of the patient's head above the root of the nose in use. The headband may include a rigidified portion. The headband may be integrally formed by plain stitch knitting, and the band portion may include a blind guide to provide a tactile indication of the position of the fastening portion.

A patient interface includes a positioning and stabilising structure having headgear comprising a ring strap portion with a superior portion configured to overlay the parietal bones of the patient's head in use and an inferior portion configured to overlay or lie inferior to the occipital bone of the patient's head in use. The ring strap portion defines a loop having a pair of upper strap portions configured to connect between the ring strap portion and a cushion assembly in use on a respective side of the patient's head superior to an otobasion superior. The headgear may comprise a rigidised portion. The headgear may be integrally formed by flat knitting and the strap portions may include blind guides to provide tactile indications of the locations of fastening portions.

The invention discloses a three-dimensional eye burst measurement method based on a skull stable reference plane, a computer readable storage medium and electronic equipment. The method comprises the following steps: constructing a Frankport plane according to preoperative skull three-dimensional CT (Computed Tomography) image data; marking symmetrical stable anatomical mark points on two sides of the skull, establishing a preoperative skull stable reference plane MTM vertical to the Frankport plane based on a connecting line of the stable anatomical mark points, and taking an intersection point of the MTM and the parietal bone as a preoperative parietal skull bony mark point T; calculating the preoperative ocular protrusion; carrying out rigid body registration on the postoperative and preoperative three-dimensional CT images of the skull; the position of the preoperative skull crest bony mark point T after registration is determined, and a postoperative skull stable reference plane MTM'is reconstructed by combining symmetrical stable anatomical mark points on the two sides of the skull identical to the preoperative skull crest bony mark point T; calculating the postoperative eye protrusion degree; and calculating the difference value of the ocular protrusion before and after the operation to obtain the variation of the ocular protrusion. The method has the advantages that the method supports preoperative and postoperative consistent measurement, and the eyeshade degree is accurately quantified in a three-dimensional space.

The invention relates to the field of teaching model equipment, in particular to a nasal cavity teaching model which comprises a whole model body, the whole model body is a complete skull composed of a frontal bone, a parietal bone, a temporal bone, a cheekbone, an occipital bone and a butterfly bone, a nasal cavity body is installed in the front face of the whole model body, and a nose model is arranged outside the nasal cavity body. A nose model is arranged outside a nasal cavity main body, the nasal cavity main body is inserted into a whole model, an open groove attached to the nasal cavity main body is formed in the whole model, the outer side of the nasal cavity main body is made of a transparent material, and an internal nasal cavity structure can be directly seen; a nasal cavity is formed in the nasal cavity main body, and an upper nasal meatus, a middle nasal meatus and a lower nasal meatus are arranged in the nasal cavity; the upper turbinate, the middle turbinate and the lower turbinate are arranged among the upper nasal meatus, the middle nasal meatus and the lower nasal meatus, the internal structure of the nasal cavity body can be conveniently and rapidly known, and the nasal cavity body can be conveniently placed into the whole model through the clamping blocks.

The EEG head-mounted device (100) includes a base member (1) configured to be positioned over at least a portion of the parietal and / or occipital bones of a patient in use. The base member (1) has a patient side and a non-patient side. The head-mounted device (100) further includes a plurality of mounting members (2), wherein each mounting member (2) is rotatably connected to the base member (1) by a respective rotatable connection means (5), and each rotatable connection means (5) includes a biasing means to bias the mounting member (2) to rotate towards the patient side of the base member (1). The mounting members (5) are shaped and configured to hold the head-mounted device (100) on the patient's head in use, and at least one of the mounting members (5) includes electrode engagement means (6) for engaging an electrode (14) in use. Examples of EEG head-mounted devices are substantially waterproof.

A patient interface includes a positioning and stabilising structure having headgear comprising a ring strap portion with a superior portion configured to overlay the parietal bones of the patient's head in use and an inferior portion configured to overlay or lie inferior to the occipital bone of the patient's head in use. The ring strap portion defines a loop having a pair of upper strap portions configured to connect between the ring strap portion and a cushion assembly in use on a respective side of the patient's head superior to an otobasion superior. The headgear may comprise a rigidised portion. The headgear may be integrally formed by flat knitting and the strap portions may include blind guides to provide tactile indications of the locations of fastening portions.