454 results about "Occlusion" patented technology

Embodiments of the present invention provide devices and methods for treating abnormalities. For example, a device according to one embodiment includes a plurality of planes of occlusion, at least one plane of occlusion comprising a plurality of layers of occlusive material. The device is configured to at least partially occlude an abnormality.

The invention belongs to the field of maxillofacial plastic medical instruments, and in particular relates to a CT (computerized tomography) and CBCT (cone beam computerized tomography) fusion data based digital occlusion guide plate and a reconstruction method thereof. The guide plate has a horseshoe-shaped body, and the guide plate body is provided with a guide plate upper jaw surface, a guide plate lower jaw surface, a guide plate lip outer side and a guide plate lip inner side, wherein the guide plate upper jaw surface and the guide plate lower jaw surface are provided with a groove respectively, and the shape of each groove is fit with the shape of a corresponding tooth crown. Aiming at the difficulty of reconstructing an occluding relation and the problems that the surgical precision of a conventional model needs to be improved and the like, a CBCT and spiral CT fusion data based virtual occlusion reconstruction method, by simulating operative reduction, virtually reconstructing the occluding relation, designing an occluding plate, recording the occluding relation and performing 3D printing to generate a guide plate real object, is used for operatively reconstructing the occluding relation, reducing the operation difficulty, shortening the operation time, ensuring the operation effect, and improving the reconstruction precision.

An occlusion device for occluding a cavity defined by a body is provided, and includes first and second laterally-expandable portions each formed of a woven tubular fabric and having opposed proximal and distal ends. The first portion is insertable into the cavity so as to be substantially disposed therein upon lateral expansion thereof. A connective element tethers the distal end of the first portion and the second portion, and is cooperable therewith to form a collapsible assembly extending along an insertion axis. Retention members, operably engaged with each of the first and second portions and spaced apart about a laterally outward surface thereof, are adapted to engage the body, after insertion of the collapsed assembly, second portion-first, into the cavity, and subsequent lateral expansion of the first and second portions, so as to retain the assembly substantially within the cavity. An associated deployment method is also provided.

An occlusion device suitable for endovasculature treatment of an aneurysm in a blood vessel in a patient, including a substantially tubular structure having a proximal end region and a distal end region, having a first, expanded condition and a second, collapsed condition. The device has dimensions in the second, collapsed condition suitable for insertion through vasculature of the patient and through a neck of the aneurysm. The device further includes a control ring having a substantially annular body disposed on the proximal end region of the structure and at least substantially circumscribing the proximal end region to prevent radial expansion of the proximal end region and to provide an engagement feature during manipulation of the occlusion device.

The invention relates to an oral beauty repair method used on a 3D cast metal bottom crown. The method includes the steps that S1, an impression silicone rubber material or gypsum model provided by a doctor is scanned, or the intra-oral portion of a patient is directly scanned to obtain scanning data; S2, the scanning data is received remotely by a computer and analyzed through dental CAD software, designing is conducted according to oral clinical actual conditions of the patient, and a virtual crown 3D shape is formed on the computer; S3, the formed virtual crown data is transmitted to a special dental metal laser fusing forming device and printed directly in a 3D mode, and a denture metal bottom crown green body is formed; S4, the top of the base bottom crown of a denture dental model is polished, so that the thickness of the occlusion portion is larger than that of a finger-shaped structure at the cut end in the middle of the crown top; S5, a protective coating is sintered on the portion, except the occlusion portion, of the bottom crown of the dental mode; S6, the sintered dental model is dyed and glazed. 3D printing is conducted on a denture crude body through the special dental metal laser fusing forming device, and the size and the shape of dentures can be adjusted at any time.

The invention relates to a tissue clamp, and belongs to medical equipment for surgical implants clinically. The tissue clamp comprises an upper clamp body, a lower clamp body and an adjusting hole, wherein the upper clamp body and the lower clamp body are an arched upper clamp body and an arched lower clamp body which are mutually matched and bent in the same direction; a clamping groove is formed at the head of the upper clamp body; a clamp is arranged at the head of the lower clamp body; the adjusting hole is formed at the connecting part of the upper clamp body and the lower clamp body; an inner side face of the upper clamp body is provided with a first outer tooth-shaped anti-slip lug boss and a first inner tooth-shaped anti-slip lug boss; an inner side face of the lower clamp body is provided with a second outer tooth-shaped anti-slip lug boss and a second inner tooth-shaped anti-slip lug boss; the two groups of outer tooth-shaped anti-slip lug bosses and inner tooth-shaped anti-slip lug bosses form a tooth-shaped engaged structure so as to prevent tissues from slipping; a reinforced hemostatic groove is formed inside the upper clamp body; and a reinforced hemostatic convex groove is formed inside the lower clamp body. The tissue clamp has reasonable design, and the tooth-shaped engaged structure is matched with a mutually self-locked fastening structure to solve the problem that a deformed occlusion part of a U-shaped titanium clamp is not provided with a self-locked structure to cause slippage.

The invention provides a pressed-film-type back tooth locked occlusion correcting device and a preparation method thereof. The device is prepared by assembling a retention device, a connection device and a traction device; the retention device is composed of pressed-film-type upper jaw back jaw pads, a membrane wrapping and surrounding anchorage teeth and side mucosae of the lip palate and a palatal-side base support; the connection device is composed of a U-shaped curved transpalatal arch of which the tail end is embedded into the back jaw pads and a reinforcing wire embedded into the palatal-side base support, and the tail end of the transpalatal arch is embedded into the back jaw pads on the two sides; the traction device is composed of traction hooks which are welded to the two sides of the U-shaped curved bottom of the transpalatal arch, wherein the positions of the traction hooks directly face the positions at one half of the mesiodistal sides of the tongue sides of occlusion teeth and are 5 mm away from the palatal side neck edges of the occlusion teeth. The pressed-film-type back tooth locked occlusion correcting device is easy to operate, little in dependency on a patient and good in correcting effect.

The invention relates to an adjustable near-infrared orthodontic accelerator capable of realizing precise treatment, which comprises a tooth bottom sleeve and a tooth peripheral sleeve, the tooth bottom sleeve and the tooth peripheral sleeve form a U-shaped tooth socket structure, a light inlet window is arranged in the middle of the tooth peripheral sleeve, chutes are arranged on the tooth peripheral sleeve on the upper side and the lower side of the light inlet window, a plurality of laser emitting devices are slidably arranged in the chutes side by side, each laser emitting device comprises a base and sliding plates arranged at the upper end and the lower end of the base, the sliding plates are arranged in the chutes, and infrared laser lamps are arranged on the bases. The low-intensity near-infrared light is utilized to irradiate teeth to accelerate tooth movement, the laser irradiation area is controllably adjusted while orthodontic treatment is assisted, the laser action range is more accurate, the accuracy and speed of orthodontic treatment are guaranteed, the temperature rise of materials is small after long-term use, the safety is high, the light source is tightly attached to gingiva, a patient can achieve retention without occlusion, the comfort degree is high, the size is small, and carrying is convenient.

Provided herein is an occlusion device comprising: (a) a substantially solid marker band having an inner and outer diameter, a proximal end, and a distal end; and (b) a resilient mesh body attached within the marker band, wherein the body is a length y, and wherein the body comprises a bolus of additional resilient mesh material of a length x, wherein y is greater than x, and wherein the body extends distally from the marker band having a first delivery shape and a second expandable deployed shape. Also provided herein is a kit comprising the occlusion device disclosed herein and a means for delivery thereof. Methods of manufacture and use of the occlusion device disclosed herein are also disclosed.

An exemplary occlusion device is disclosed. In various embodiments, the exemplary occlusion device includes a cap chamber and a bulb chamber for occluding a left atrial appendage (LAA). In particular embodiments, after delivery to the LAA, the cap chamber and the bulb chamber are each inflated via various amounts of fluid(s) to occlude the LAA.

A medical device for removing a material from a hollow anatomical structure is provided. The device may include a shaft member. The device may include an expandable centering element near the distal end of the device. The device may include a macerator element either attached to the shaft or independent and freely moveable from the shaft. Alternatively, the device may include a rotating wire attached to the macerator element. The device may include an aspiration lumen in for removal of material. The device may include a drive shaft attached to a motor and used to rotate the macerator element. The device may be used in combination with a distal occlusion element, which may be either a radially expandable filter or balloon member.

The disclosure relates to a nasal cannula comprising a port configured for delivery of a medicament into a flow of a fluid being delivered by the nasal cannula to a user and / or configured for interfacing with a medicament delivery device or an instrument. The disclosure also relates to a nasal cannula comprising an asymmetric profile to reduce an amount of occlusion of one nare of a user to provide access for an instrument to the nare with the nasal cannula in use.

The present invention teaches the uses of a disc shaped mesh intrasaccular occlusion structure, with optional supplemental hydrogel, which is designed to implement an endovascular treatment to facilitate saccular aneurysm treatment while ameliorating or eliminating aneurysm recurrence.

The group of inventions relates to medical technology, and more particularly to means for dynamic virtual articulation. One of the inventions is a method for using a dynamic virtual articulator for simulating occlusion during a change in the initial position of the lower jaw or fragments thereof, and for modeling the position of the teeth in relation to one another and the position and shape of false teeth, said method being carried out with the aid of a computer. The method includes the following steps: providing a virtual articulator comprising a virtual three-dimensional model of the upperjaw and dental arch and a virtual three-dimensional model of the lower jaw and dental arch, resembling the upper jaw and upper teeth and the lower jaw and lower teeth, respectively, of the patient; and providing simulated movements of the virtual upper jaw and the virtual lower jaw in relation to one another for simulating dynamic occlusion, during which penetrating and non-penetrating contact mayoccur between teeth in the virtual upper and virtual lower jaw. Providing the virtual articulator further includes providing virtual three-dimensional models of the temporomandibular joints, resembling the heads of the lower jaw, the mandibular fossae, and the articular tubercles of the temporal bones, and carrying out simulated movements of the jaws in relation to one another is preceded by clinically or virtually setting initial and final positions. Furthermore, the virtual surfaces of the heads of the lower jaw and the virtual surfaces of the articular tubercles and the mandibular fossae of the temporal bones of the patient are disengaged. A second invention is a non-volatile machine-readable medium with a stored code containing instructions which, when executed, allow the proposed method to be carried out. The group of inventions makes it possible to provide a virtual articulator that simulates as closely as possible the actual processes occurring in the patient's mouth.

The invention belongs to the field of dental polymer application, and provides a preformed dental crown composed of resin, glass fiber and a filler, and provides a preparation process of the preformeddental crown. The prepared preformed dental crown is more suitable for occlusion than commercially available preformed dental crowns. After compounding, mechanical properties are greatly increased, the appearance of the material is improved, and the corresponding biocompatibility is improved. Meanwhile, costs of the raw materials and the production process are reduced, so that the price of the material after compounding is also lower.