13 results about "Extraction site" patented technology

The invention relates to a computer-implemented method for processing an image of a dentate region of interest of a patient, the method comprising: a) obtaining an image of the jaws of a patient on which a region of interest is defined comprising a dentate sector with one or more teeth to be extracted; b) processing the region of interest in order to predict at least one edentulous sagittal 2D section, referred to as edentulous 2D section, the edentulous 2D section being a sagittal section perpendicular to the occlusion curve representative of a residual bone volume of a bony plate at an extraction site after extraction and healing, the processing implementing at least one model for predicting an edentulous section trained on the basis of pairs of dentate and edentulous 2D sections that are symmetrical with respect to the axis of symmetry passing through the middle of the mandibular symphysis of a reference patient for the lower jaw and by the median axis passing through the nasal spine for the upper jaw.

The utility model provides a novel invisible orthodontic appliance for integrally adducting anterior teeth in a tooth extraction case, which comprises a bracket-free invisible orthodontic appliance body, the thickness of a rear tooth area of the bracket-free invisible orthodontic appliance body is increased by 0.1-0.25 mm on the basis of the original uniform thickness, the thickness of a distal surface of a second molar is increased by 0.15-0.25 mm, and the thickness of the rear tooth area of the bracket-free invisible orthodontic appliance body is increased by 0.1-0.25 mm on the basis of the original uniform thickness of the bracket-free invisible orthodontic appliance body. According to the bracket-free invisible orthodontic appliance body, a falling prevention piece is designed at a tooth extraction position of the invisible orthodontic appliance, the falling prevention piece is wider in a position close to an occlusal surface and narrower in a position close to a gum, and the size of the falling prevention piece is matched with the change of a gap of the tooth extraction position. According to the application, the back tooth area is thickened on the basis of the original uniform thickness, and the distal surface of the second molar is thickened, so that the anchorage of the back tooth area can be enhanced, and meanwhile, as for the inclination of adjacent teeth in the tooth extraction gap, the anti-collapse piece which is wider in the position close to the occlusal surface and narrower in the position close to the gum is designed at the tooth extraction position; therefore, when the dental crowns of the adjacent teeth on the two sides incline towards the tooth extraction gap, the anti-tilting piece can generate an inclination resisting effect. According to the invention, through the optimal design of the accurate non-uniform thickness, the correction efficiency of the tooth extraction case can be improved.

Various concepts for streaming media content are described. Some concepts allow for streaming spatial scene content in a spatially unequal manner such that the user's visible quality is increased, or the processing complexity or necessary bandwidth at streaming extraction sites is reduced. Other concepts allow streaming of spatial scene content in a manner that increases applicability to other application contexts.

The utility model discloses an auxiliary device convenient for blood drawing, which relates to the technical field of medical instruments and comprises a box body and a fitting groove arranged in the middle of the upper surface of the box body, the inner surface of the fitting groove is rotatably connected with a hand supporting plate, and the left side of the upper surface of the box body is provided with a functional groove. A storage groove is formed in the right side of the upper surface of the box body, a rotating seat is rotationally connected to the rear side of the inner surface of the functional groove, and a deformable rod is fixedly connected to the outer surface of the rotating seat. Compared with an existing common auxiliary device facilitating blood drawing, when the auxiliary device facilitating blood drawing is used for assisting blood drawing, the elbow of a person receiving blood drawing can be placed on the hand supporting plate and the attaching groove, the arm of the person receiving blood drawing can be conveniently placed at a proper position, the blood vessel developing lamp can irradiate the blood drawing part, and the blood drawing effect is improved. And the locking mechanism can achieve better fixing and storage effects, and the auxiliary blood drawing device is convenient to transfer, store and unfold for use.

Various concepts for streaming media content are described. Some concepts allow for streaming spatial scene content in a spatially unequal manner such that the user's visible quality is increased, or the processing complexity or necessary bandwidth at streaming extraction sites is reduced. Other concepts allow streaming of spatial scene content in a manner that increases applicability to other application contexts.

This application discloses a tissue fluid extraction device, relating to the field of health monitoring technology. The device includes an alternating current source and electrodes. The output terminal of the alternating current source is connected to the electrodes and is used to output a preset number of predetermined alternating current signals to the electrodes at preset time intervals. The preset time interval is greater than 0, and the preset number of signals is greater than or equal to 2. The electrodes are used to apply electrical stimulation corresponding to the alternating current signal output by the alternating current source to the tissue fluid extraction site, causing the tissue fluid to be released at the extraction site under electrical stimulation. This tissue fluid extraction device enables non-invasive tissue fluid extraction.

A device and method for extracting material during a medical procedure, such as biopsy, drainage, surgery, ablation or any procedure involving extraction of unwanted material from an extraction site at a human or animal body. The device may also be used to deliver a material to a delivery site. The device comprises: a tubular member having a lumen and a series of radially inward projections extending into the lumen; and a shaft movably disposed within the lumen of the tubular member and having a series of radially outward protrusions extending into the lumen.

Various concepts for streaming media content are described. Some concepts allow for streaming spatial scene content in a spatially unequal manner such that the user's visible quality is increased, or the processing complexity or necessary bandwidth at streaming extraction sites is reduced. Other concepts allow streaming of spatial scene content in a manner that increases applicability to other application contexts.

The invention provides a negative pressure suction device for treating lymphedema and a drainage method, and relates to the technical field of lymphedema treatment. The negative pressure suction device for treating lymphedema comprises a movable frame for supporting, the top end of the movable frame is fixedly connected with an adjusting frame, the inner wall of the adjusting frame is rotatably connected with a threaded rod, the outer wall of the threaded rod is in threaded connection with a supporting frame, and the outer wall of the supporting frame is slidably connected to the inner wall of the adjusting frame. The inner wall of the supporting frame is sleeved with a negative pressure extraction barrel, a one-way valve is fixedly installed at the bottom end of the inner wall of the negative pressure extraction barrel, and the bottom end of the one-way valve is fixedly connected with an extraction pipe. Uniform pressurization is achieved through the combination of the inflatable sleevelet and the air cushion, the limiting sleeve of the guide assembly precisely positions the extraction part of the puncture needle on the limb of a patient, the extrusion effect of pressure on other edema positions except the extraction position is achieved, effusion is slowly extracted in cooperation with the negative pressure assembly, it is guaranteed that drainage is precise and efficient, and tissue damage caused by too large extraction pressure is avoided.

The application discloses a continuous subcritical or supercritical fluid extraction device which is composed of an extractor, a feeder and a fluid-solid separator. The extractor is a straight pipe, a spiral pipe or a cylindrical structure, and is a fluid-solid extraction site. The feeder is a spiral feeder or a piston feeder, and its inlet is connected with a substance-to-be-extracted conveying pipe, and its outlet is connected with a lateral inlet of the extractor. The substance-to-be-extracted is continuously sent into the extractor through the feeder. The fluid-solid separator is a rotary drum separator or a cyclone, which is used for separating the extraction fluid containing extractant from the raffinate in the fluid-solid mixture. The inlet of the fluid-solid separator is connected with the outlet of the extractor, the outlet of the extraction fluid containing extractant is connected with an extractant separation system, and the raffinate outlet discharges the raffinate out of the extractor or into the next extractor. The device has the characteristics of high continuity, simple structure, low operation cost, safety and reliability and the like.

The utility model belongs to the technical field of medical instruments, and particularly relates to a digging spoon for removing a hair growing center of a rabbit upper and lower jaw tooth extraction site. The digging spoon for removing the hair growing center of the rabbit upper and lower jaw tooth extraction site comprises a handle, an upper jaw scraping handle and a lower jaw scraping handle are arranged at the two ends of the handle respectively, and the upper jaw scraping handle sequentially comprises a first straight part, a first inclined part and a first curved part from the side close to the handle to the side away from the handle; the lower jaw scraping handle sequentially comprises a second straight part, a second inclined part and a second curved part from the side close to the handle to the side far away from the handle, spatula bodies are arranged at the end of the first curved part and the end of the second curved part, and the radian of the first curved part is larger than that of the second curved part. The hair growing device has the advantages that the hair growing center can be efficiently removed, and damage to other tissues can be reduced.

The present invention relates to a device adapted to facilitate transport of a biopsy sample from a sterile extraction site to laboratory-type equipment by which the biopsy sample is processed, while maintaining the biopsy sample wetted and sterile and automatically transferring the biopsy sample from the device to the laboratory-type equipment.