70 results about "Foreign body" patented technology

A device for removing stones and foreign bodies from a human cavity including a straight sheath with one or more side branches; said straight sheath including a proximal tube and distal tube with respect to the operator who is holding the device; one or more side branches arise from the proximal tube and said branch or branches share a common lumen with the proximal and distal tubes; at the least, one of the side branches contains a pressure vent in the form of an opening that extends through the wall of the side branch and is sealed to form an airtight channel that extends toward a sealing element assembly. One or more openings at the end of this airtight channel serve as a transposed pressure regulating mechanism and are located and accessible on or near the surface of said sealing element assembly; an operator can regulate the aspiration pressure by covering or uncovering the vent or a portion of the vent.

The application provides a cleaning and nursing device for oral cavity foreign matter blockage of emergency patients, and belongs to the technical field of medical equipment. The device comprises a bottle body, a rubber cleaning head arranged at the top of the bottle body, a cleaning mechanism arranged on one side of the bottle body and used for cleaning the blocked foreign matter in the oral cavity of the patient, and an adjusting mechanism arranged at the top of the bottle body and used for adjusting the angle of the rubber cleaning head. The adjusting mechanism comprises two fixed seats fixedly connected to the top of the bottle body, a connecting shaft rod rotatably connected to the fixed seats and connected to the rubber cleaning head, and an auxiliary component matched with the fixed seats and the connecting shaft rod. In the above scheme, the cleaning mechanism is arranged, linkage operation of "spray washing softening and negative pressure suction" is realized by using the air bag driving, the cleaning difficulty is reduced compared with ordinary equipment, the foreign matter residual rate is greatly reduced, and the cleaning efficiency is improved.

This invention provides a highly supportive mesh structure, comprising beam-column units and single expansion units. The beam-column units at both ends and the single expansion unit in the middle are connected to form a tubular mesh structure. Each single expansion unit is composed of single expansion grids axially connected by reinforcing bars, with the crests of radially adjacent single expansion grids arranged in an alternating pattern. This mesh structure exhibits strong radial support, low axial contraction, no sharp angles, and stable mechanical properties. It is adaptable to various cavities in the human body, enabling the establishment and maintenance of cavities blocked by various hard, sharp, and irregularly shaped foreign objects. This provides surgeons with a safer surgical procedure, increases their treatment options, and reduces patient pain and suffering during and after surgery.

FIELD: otorhinolaryngology.SUBSTANCE: under endotracheal anesthesia, an endoscope equipped with optics and an instrument for removing pathological contents of the maxillary sinus are inserted into the nasal passage. The inferior nasal concha is displaced medially using a raspatory. Then, stepping back from the edge of the piriform opening by 1.5–2.0 cm in the caudal direction, a mucoperiosteal flap of the lateral wall is separated in the lower nasal passage. The mucoperiosteal flap is displaced posteriorly, exposing the bone skeleton in the projection of the inferomedial angle of the maxillary sinus. Next, using a cold plasma coblator, in ablation mode, the mucous surface of the bone skeleton is evaporated for 2–3 seconds, followed by coagulation of small vessels. Then, a bone valve measuring 10–15 mm is formed from the exposed bone skeleton. The bony valve is retracted in the caudal direction, forming an antrostomy. A 70-degree endoscope is inserted through the formed antrostomy and the pathological contents of the sinus are visualized. In this case, if the cyst is visualized with a coblator in ablation mode, the cyst is evaporated along with its contents, and the remaining cyst is captured and removed. If a polyp is visualized, the polyp stalk is first evaporated, and then the remaining part of the polyp is removed. If a foreign body is visualized, it is removed with forceps. In this case, if the foreign body is encapsulated or located in the thickness of the mucosa, a coblator in ablation mode evaporates part of the mucosa until the foreign body is exposed, and then removed. Next, the sinus cavity is washed with saline solution. The antrostomy is closed with a bone flap. The formed mucoperiosteal flap is placed back in its original place.EFFECT: method allows for endoscopic endonasal removal of pathological contents from the maxillary sinuses with a minimal risk of cyst / polyp recurrence and postoperative complications, reduced blood loss during surgery, shortened surgical time, postoperative rehabilitation periods, and temporary disability.3 cl, 3 ex

The invention discloses a laser power automatic adjusting method and system in a remote foreign matter removing process of a power transmission line, and the method comprises the steps: recognizing and positioning a foreign matter through an inspection image, analyzing the spatial position relation between the foreign matter and a power transmission line, preliminarily judging the contact state of the foreign matter, and outputting a contact risk level; analyzing the foreign matter, and constructing an initial thermal coupling risk parameter based on the contact risk level; controlling the laser to perform short-time irradiation on the foreign matter for a preset time length at the tentative power, and synchronously collecting thermal response characteristic information generated by the surface of the foreign matter in the irradiation process; based on the thermal response feature information, comparing with a preset thermal response reference model, dynamically judging the actual thermal coupling state between the foreign matter and the power transmission conductor, and correcting the initial thermal coupling risk parameter in real time according to a judgment result to obtain a corrected thermal coupling risk parameter; and according to the corrected thermal coupling risk parameter, gradually increasing the laser power of the laser to an effective clearing power interval so as to complete foreign matter clearing.

This invention discloses a rectal ultrasound endoscope and a rectal ultrasound endoscope system, comprising: a first insertion part, the distal end of which is provided with an ultrasound transducer, and the first insertion part having a first internal channel with openings at both ends; and a second insertion part, the distal end of which is provided with a headstock and optical components, an illumination component, and a flow channel provided on the headstock, the second insertion part being detachably passable through the first internal channel. In use, the second insertion part is inserted into the first insertion part, and the first insertion part is inserted into the human body. Ultrasound images are acquired using the ultrasound transducer for rectal detection and diagnosis. When a rectal foreign body is detected, the flow channel of the second insertion part is used to flush and suction the foreign body area, ensuring accurate positioning and precise rectal cleaning. Optical images are acquired using the optical components to further confirm the cleaning effect. During the diagnosis and treatment process, if the optical image becomes blurred, the second insertion part can be immediately withdrawn, and the optical components can be quickly cleaned intraoperatively using methods such as wiping with alcohol.

The utility model discloses a kind of in-body stripping cutting systems, comprising: stripping device, stripping device includes stripping head, at least part of stripping head is arranged in arc, at least part of stripping head is abutted to the outside of in-body target stripping object, by moving stripping head, target stripping object outside is separated from adjacent tissue;Cutting device, cutting device is provided with cutting mechanism, the distal end of cutting mechanism abuts the boundary of target stripping object distal end, operates cutting mechanism, realizes target stripping object distal end and adjacent tissue separation.The utility model can visualize stripping target stripping object, fully strips out to ensure surgical efficacy, reduce surgical trauma, reduce surgical cost, and can shorten the hospitalization recovery period of patient, in addition, without using artificial blood vessel, can reduce the probability of postoperative complication, applicable to narrow or blocked lumen cleaning, especially applicable to lumen old thrombus or larger deposit, and long-implanted stent in lumen and the removal of other foreign bodies.

The present invention provides a biological information acquisition device or method for acquiring electrocardiogram information and blood flow-related information that can acquire biological information without reducing the accuracy of intestinal measurements and without ensuring the reproducibility of measurement values, regardless of the type of stool or foreign object being measured. [Solution] A biological information acquisition device comprising a measuring unit, a processing unit for performing calculations on data obtained by measurement, and an output unit for outputting the calculation data from the processing unit as a signal, wherein the measuring unit is provided with an optical sensor and a temperature sensor arranged close to each other in an installation area in a specific circumferential direction of the flexible shaft, and a strip-shaped or cap-shaped cleaning cover is provided on the shaft head of the flexible shaft, excluding the specific circumferential direction, for cleaning by contacting the inner wall of the body cavity.

This invention discloses a fully automated quality control method for knee joint DR radiographs based on multi-task deep learning and geometric quantization. The method includes: using DICOM format knee joint DR images as input data and performing data preprocessing; constructing a multi-task model architecture comprising a knee joint anteroposterior and lateral bone segmentation model, a knee joint anteroposterior and lateral keypoint detection model, a foreign object detection model, and a left / right marker detection model, defining the network infrastructure and input / output of each model; calculating quality control-related indicators based on the bone mask, keypoints, foreign object detection results, and left / right marker detection results output by the four models; formulating scoring rules to score the quality of knee joint DR images, and performing automatic quality control of knee joint DR images. This invention achieves objective, efficient, and quantifiable knee joint DR image quality assessment by automatically extracting anatomical structures, calculating geometric parameters, and executing scoring rules, providing a reusable technical paradigm.

This invention specifically relates to a foreign object identification and analysis method in pet food can production based on image processing, belonging to the field of food safety production and testing technology. It includes: calculating the spatial partial derivative of the surface normal vector, constructing and optimizing the surface topological mutation index to achieve a fundamental distinction between broth bubbles and hard foreign objects. In this invention, a ring-shaped multi-directional light source provides time-division illumination, and the camera simultaneously acquires data. Combined with an adaptive specular removal strategy, it eliminates the need for manually setting thresholds and dynamically removes specular interference caused by specular reflection from broth pixel by pixel, avoiding the false rejection and missed rejection problems caused by fixed threshold methods. A high-precision surface normal vector matrix is ​​obtained by normalizing the solution based on the Lambert model and least squares method, providing reliable data support for subsequent foreign object identification. It adapts to the surface differences of different batches and flavors of pet food cans, reducing the impact of specular interference on the detection results and meeting the stringent requirements of industrial production lines for detection accuracy.

A device for removing stones and foreign bodies from a human cavity including a straight sheath with one or more side branches; said straight sheath including a proximal tube and distal tube with respect to the operator who is holding the device; one or more side branches arise from the proximal tube and said branch or branches share a common lumen with the proximal and distal tubes; at the least, one of the side branches contains a pressure vent in the form of an opening that extends through the wall of the side branch and is sealed to form an airtight channel that extends toward the proximal tube. One or more openings at the end of this airtight channel serve as a transposed pressure regulating mechanism and are located and accessible on or near the surface of said proximal tube; an operator can regulate the aspiration pressure by covering or uncovering the vent or a portion of the vent.

This application provides an anastomosis reinforcement patch applicable to a tubular stapler, comprising: a patch substrate, the patch substrate including: a body portion covering the staple cartridge end face of the tubular stapler; a connecting portion located at the edge of the body portion, configured to define the relative position of the body portion and the staple cartridge of the tubular stapler; a patch protective membrane, movably connected to the connecting portion via sutures, wherein an annular limiting portion is provided at the end of the protective membrane away from the connecting portion, the annular limiting portion enabling the membrane material to be bound into a regular circle, facilitating smooth insertion and precise positioning of the staple cartridge into the cavity, improving operational convenience, and configured to enhance the plasticity of the patch protective membrane to facilitate insertion of the staple cartridge into the cavity; detachable sutures can pull the protective membrane completely out of the cavity, avoiding residue that could cause infection, ensuring postoperative safety, reducing patient trauma and foreign body reaction, and improving clinical surgical outcomes and patient treatment experience.

Aspects are directed to an improved suction catheter that increases the effectiveness of clearing the airway, reducing the need for separate suctioning and foreign body grasping instruments. The embodiments described herein provide medical personnel the ability to use one hand and catheter to selectively grasp an anatomically lodged foreign body while reducing the likelihood of lumen blockage and interruption of suction. The embodiments described herein further provide an auxiliary access port that allows insertion of a bougie instrument into a suction catheter. The suction catheter may be a Yankauer device or improved suction catheter with grasping housing. The bougie instrument may extend through the access port and a lumen of the catheter while still providing suction via the lumen. Due to the small size of the suction catheter, the bougie instrument may extend from the catheter's distal end when placed in close proximity to a patient's vocal cords.

1. Name of the product in this design: Foreign body clip (for use in otolaryngology). 2. Purpose of this design: To remove foreign objects from the ear canal, nasal cavity, and oral cavity. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. The name of the design product: throat negative pressure emergency suction device. 2. The use of the design product: for sucking out throat foreign bodies. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The utility model provides a kind of intracavity auxiliary device and intracavity foreign body extraction system, wherein, intracavity auxiliary device includes: sheath pipe;Guide channel, guide channel is at least partially set in sheath pipe, and axial through the proximal end and the distal end of sheath pipe, for guiding foreign body extraction device to enter biological tissue cavity;Housing, located in the proximal end of sheath pipe;And valve part, at least partially housed in housing, for selectively opening or plugging guide channel.The above-mentioned intracavity auxiliary device can safely and effectively assist foreign body extraction device to extract foreign body in vivo.

This invention relates to the field of pipeline corrosion protection technology, specifically to a method and system for full-lifecycle rust prevention and control of ultra-high strength square tubes with rust and corrosion resistance. The method includes the following steps: extracting image anomaly markers, combining them with standard classification and adaptation, verifying indicators, generating access or blocking markers, changing status, and archiving. In this invention, defect areas are identified by acquiring images and film thickness information, and their location and classification are completed by combining structural coordinates and component codes. Based on image texture, boundary morphology, and foreign object characteristics, and combined with set standards, a regional adaptation level is established. Coverage status is determined from multiple dimensions, improving the accuracy and reliability of surface assessment. The determination results simultaneously generate access or blocking instructions. Embedded process control ensures stable switching connections, avoids protection interruptions, and status information is uniformly archived to form a structural-level traceability record, covering all stages of identification, judgment, repair, feedback, and archiving, enhancing adaptability, consistency, and full-process controllability.

This utility model discloses an ampoule-breaking device, relating to the field of medical device technology. It includes four bottle-positioning cylinders, each with a breaking mechanism at its top. A connecting plate is fixedly connected between the opposite faces of two adjacent positioning cylinders. Two sliding rods are fixedly installed between the front and rear sides of the inner wall of each positioning cylinder, and two sliding plates are slidably installed on the outer walls of the two sliding rods. This utility model, through its enclosed design with a protective cap and built-in grinding wheel, ensures that the hand does not come into contact with the glass surface during operation. After the cap is broken, it is directly discharged through the discharge hole, completely eliminating the risk of glass shards flying and cuts caused by breaking the bottle by hand. Simultaneously, the rubber pad of the arc-shaped clamping plate prevents fingers from contacting the bottle body, and the entire operation does not require touching the broken surface of the bottle neck, significantly reducing the possibility of microbial or foreign object contamination of the medication.

A valve device (100) for a medical bag (200), provided at the bottom end of the medical bag (200). The valve device (100) comprises a connecting member (10) and a switching member (20). The connecting member (10) has a first mounting portion (11) and a flow guide tube (12) extending from the first mounting portion (11), and the flow guide tube (12) is communicated with the medical bag (200). The switching member (20) has a second mounting portion (21) and a drainage tube (22) extending from the second mounting portion (21), and the second mounting portion (21) is provided on the first mounting portion (11), so that the switching member (20) rotates relative to the connecting member (10) between an open position and a closed position. When in the closed position, the flow guide tube (12) is not communicated with the drainage tube (22), and the drainage tube (22) extends upwardly relative to the flow guide tube (12), so that the drainage tube (22) is prevented from inadvertently contacting the ground or an external foreign object, preventing the occurrence of contamination. When in the open position, the flow guide tube (12) is communicated with the drainage tube (22) to allow drainage of a liquid from the medical bag (200).

1. The name of the design product: surgical forceps. 2. The use of the design product: the design is used for doctors to pick up foreign matter during operation. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best shows the design points: perspective view 1.

This utility model discloses a protective cover for an oral scanner, including a main body. A rectangular through-hole is formed on the front surface of the main body near the upper end. A semi-circular groove is formed on the side of the main body. A circular through-hole is formed inside the rectangular through-hole. A lens adjustment mechanism is movably installed inside the rectangular through-hole. A slot is formed on the front surface of the main body near the lower end of the rectangular through-hole. This protective cover for an oral scanner, through the lens adjustment mechanism, allows the operator to adjust the tilt angle of the protective lens as needed and clamp it in place. This effectively reduces refraction errors, improves image quality, ensures accurate measurement by the oral scanner, and reduces the influence of the protective lens on the final scanning image result. The protective clip can be fitted and clamped onto the upper end of the oral scanner protective cover, making assembly and disassembly simple. It also seals the rectangular through-hole, preventing dust and foreign objects from adhering to the surface of the protective lens before use.

This invention discloses a method and system for foreign object impact warning of power lines based on a spatiotemporal denoising autoencoder. The method includes: acquiring raw time-series signals from multiple sources and inputting them into a spatiotemporal denoising autoencoder; processing the raw time-series signals and reconstructing a reconstructed waveform of the line health state using a spatiotemporal mask; calculating the reconstruction residual between the raw time-series signals and the reconstructed waveform of the line health state, extracting current environmental background noise features and historical residual features, and inputting them together into a spatiotemporal risk tracker; using a multi-head attention mechanism and a convolutional gated recurrent unit to perform spatiotemporal dependency modeling on the input, and outputting multidimensional spatiotemporal features representing the current line operating state; calculating an adaptive dynamic judgment threshold based on the multidimensional spatiotemporal features to obtain a dynamic judgment threshold under the current operating condition; and performing a foreign object impact warning by comparing the offset between the dynamic judgment threshold and the reconstruction residual. This invention can significantly reduce the false alarm rate of warnings.

This application provides a cleaning device, including a handle and a cleaning component. The cleaning component includes a connecting portion and a head connected to each other. The connecting portion is detachably connected to the handle. The head includes an inclined surface and a stop surface. The inclined surface is configured to guide the head into a root canal, and the stop surface is configured to remove foreign objects from the root canal. The end of the head away from the connecting portion has a smooth surface. By providing a smooth surface at the end of the head away from the connecting portion, it is possible to prevent injury to the patient from sharp objects. Compared to cleaning debris by rotating a root canal file, which can easily enlarge the root canal, inserting the cleaning device into the root canal and removing foreign objects from inside the root canal is less likely to cause root canal enlargement.

This invention discloses a method and system for foreign object impact warning of power lines based on a spatiotemporal denoising autoencoder. The method includes: acquiring raw time-series signals from multiple sources and inputting them into a spatiotemporal denoising autoencoder; processing the raw time-series signals and reconstructing a reconstructed waveform of the line health state using a spatiotemporal mask; calculating the reconstruction residual between the raw time-series signals and the reconstructed waveform of the line health state, extracting current environmental background noise features and historical residual features, and inputting them together into a spatiotemporal risk tracker; using a multi-head attention mechanism and a convolutional gated recurrent unit to perform spatiotemporal dependency modeling on the input, and outputting multidimensional spatiotemporal features representing the current line operating state; calculating an adaptive dynamic judgment threshold based on the multidimensional spatiotemporal features to obtain a dynamic judgment threshold under the current operating condition; and performing a foreign object impact warning by comparing the offset between the dynamic judgment threshold and the reconstruction residual. This invention can significantly reduce the false alarm rate of warnings.

This utility model discloses a fish parasite cleaning device, belonging to the technical field of fish parasite equipment. It includes a box and a water tank. The box is a square container with an open top, and the water tank is a square container with open top and bottom. The water tank includes two identical water tanks, Trough 1 and Trough 2, placed parallel to each other within the box. Hooks are symmetrically arranged on the top of the opposite inner sidewalls of Trough 1 and Trough 2, which are then suspended and fixed within the box's interior via these hooks. The hook design facilitates disassembly and cleaning of the water tanks or replacement of the filter screen. The sliding connection structure between the water inlet pipe and the water inlet hole allows for fine-tuning of the water tank position. Combined with the design where the bottom filter screen is higher than the drain pipe, this ensures even water flow covering the fish and rapid sedimentation of impurities, preventing filter screen clogging and preventing the entry of foreign objects. It requires no external power supply and is suitable for long-term outdoor or field use.

The application provides an intraocular vitreous cavity foreign body optical fiber net bag, and relates to the technical field of medical devices, which comprises an outer sheath, a positioning block fixedly connected to one side of the outer sheath, a collecting assembly arranged on one side of the outer sheath, the collecting assembly comprising a shaping wire a, an arc-shaped shaping wire a, a shaping wire b, an arc-shaped shaping wire b and a net bag, and an optical fiber probe, and a pulling hole is formed in the inner part of the outer sheath. The foreign body optical fiber net bag can realize automatic tightening of the net bag opening through the arrangement of the collecting assembly, ensure the stability of foreign body capture, realize a two-handed cooperation mode of left-hand holding of the net bag and right-hand holding of a vitreous cutting head, improve the safety of surgery, and realize locking and quick release of the position of the net bag through the arrangement of a limiting assembly, cooperate with the elastic reset function of a small spring, and enhance the convenience and reliability of the operation of the device.

This utility model relates to the field of bird deterrence equipment technology, specifically a rotatable bird deterrence device, including a support component and a bird deterrence component. The bird deterrence component includes a mounting plate, a fixing frame on the upper side of the mounting plate, a glass block on the outer side of the fixing frame, and barbs on the outer side of the glass block. A light bulb is mounted on the upper side of the mounting plate. The support component includes a support plate, a rotating rod on the upper side of the support plate, a gear at the lower outer end of the rotating rod, and a toothed plate on the rear side of the gear. This utility model uses the refraction of light from the light bulb by the glass block to disrupt the vision of flying birds. The reciprocating rotation of the barbs prevents birds from landing, increasing the bird deterrence method and improving the bird deterrence range. The gear and toothed plate drive the bird deterrence component to rotate reciprocally, preventing the barbs from getting caught in foreign objects and stopping rotation. The support plate is assembled using a clamping plate and a clamping groove, improving the stability of the bird deterrence device after fixing.

This invention discloses a method for foreign body detection in chest X-ray images based on deformable convolution. The method first preprocesses the X-ray image to enhance contrast and clarity. Second, it constructs a convolutional neural network based on deformable convolution. This convolutional neural network includes an improved ModelNet backbone, a spatial pyramid pooling structure, a spatial aggregation module, and a foreign body prediction head. Then, training data is input into the deformable convolution-based convolutional neural network for training, resulting in a trained network model. Finally, test data is input into the trained network model to obtain extracted feature maps, which are then used for prediction and regression to obtain the coordinates of the foreign body. The deformable convolution-based backbone in this invention can adaptively adjust the feature offset, thereby extracting foreign body features more accurately. The spatial aggregation module embeds spatial location information into image features, better capturing the location information of the foreign body.