54 results about "Paranasal sinuses" patented technology

The heating apparatus for removing mucus comprises a face mask and a chest cover. The face mask may be adapted to be worn adjacent to a face and may retain water between the face mask and the face. The chest cover may be adapted to be worn adjacent to a chest and may retain water between the chest cover and the chest. The face mask and the chest cover may heat when activated and may be adapted to evaporate water to create water vapor which may help to break up mucus located within the user's sinuses and throat. The temperature of the heat created by the face mask and the chest cover may be controlled via a first thermostat control and a second thermostat control, respectively.

A lumen organ model and an endoscope training system are provided. A luminal organ model (3) is provided with: a model body (11) comprising a hollow lumen body having a lumen surface that simulates at least the lumen of a luminal organ such as the stomach, the large intestine, the bladder, the paranasal sinus, or the uterus; a light source device (13) that emits light in a light-emitting region disposed at at least one predetermined observation site corresponding to a training purpose on the lumen surface of a model body (11) comprising a lumen; and a processor (27) that selectively switches light-emitting regions that emit light by controlling the light source device (13).

The invention discloses a chronic sinusitis CT (Computed Tomography) image automatic typing and severity assessment method and a chronic sinusitis CT image automatic typing and severity assessment system based on deep learning. The method comprises the following steps: acquiring paranasal sinus CT image data of a chronic sinusitis patient and an associated clinical tag; carrying out standardization processing on the CT image, wherein the standardization processing comprises gray level normalization, denoising and region-of-interest segmentation; a multi-task deep learning model is constructed, an improved 3D Re < s> Ne < t-50 > architecture is adopted by a typing sub-model to output an immune endotype classification result, and a severity evaluation sub-model segments a lesion area based on a U-Ne < t + + > structure and automatically calculates a severity level; integrating model output to generate individualized treatment suggestions; and superposing a labeling result through the thermodynamic diagram and embedding the labeling result into a hospital PACS system. Accurate typing and evaluation of chronic nasosinusitis are achieved, and diagnosis efficiency and clinical decision support capability are improved.

The invention discloses an objective optical system for a paranasal sinus endoscope, which comprises a first lens group with negative focal power, a second lens group with positive focal power, a diaphragm, a third lens group with negative focal power and a fourth lens group with positive focal power in sequence from an object side, and meets the following conditional expressions: (1) 14.0 lt; vd (RN) lt; 19.6, 19.6; (2) 18.0 lt; vd (RN) lt; 23.3, 23.3; (3) 380 lt; vd (RN) / (ng-nF) lt; 1080, 1080; (4) vd (RP) + vd (RN) lt; 79); (5) f1 / flt; -1.1,...,-1.1; (6) f2 / flt; -2.2,-2.2; (7) 1.92 lt; f < 2 > is 6 / f < lt >; 3; the effect of inhibiting magnification chromatic aberration is achieved, the requirement for a large clear range can be met, and confocal of white light and fluorescent light is achieved; meanwhile, optical shooting guarantee is provided for the paranasal sinus endoscopic medical imaging technology, the completeness and authenticity of optical data are guaranteed, and the effectiveness of the optical data is improved for imaging medical treatment and remote medical treatment.

Compositions for use in preventing or treating an infection of the nasal passages, sinuses, or both of a subject are described. The compositions include one or more peptoid compounds in an amount effective to prevent or treat the infection in the nasal passages, sinuses, or both. The compositions include the one or more peptoid compounds in an amount effective to inhibit one or more pathogenic bacteria, pathogenic fungus, or pathogenic virus in the nasal passages, sinuses, or both, while having relatively little or no activity against commensal bacterial species, commensal fungal species, commensal viral species, or any combination thereof, in the nasal passages, sinuses, or both of the subject.

A method of treating a sinus cavity of a subject includes advancing a distal portion of a light source through a drainage pathway of a sinus cavity and into the sinus cavity and visually observing a transdermal light emitted from the light source. A distal portion of a substantially rigid inner guide member of a balloon dilation catheter is advanced into the drainage pathway, the balloon dilation catheter including a movable shaft including a balloon that is slidably mounted on the substantially rigid inner guide member. The movable shaft and balloon are advanced distally over the substantially rigid inner guide member to place a portion of the balloon in the drainage pathway whereby the balloon is inflated.

The present invention relates to a patch (1) for the topical treatment of sinusitis in a person to be treated, the patch (1) comprising at least one active section (2) with at least one active ingredient and at least one adhesive section (3), wherein the patch (1) is designed to be at least partially, preferably completely, occlusive in the at least one active section (2) and / or in the at least one adhesive section (3), wherein it is provided according to the invention that the at least one active section (2) contains a therapeutically effective amount of a non-steroidal anti-inflammatory drug and / or its physiologically compatible compounds / salts and / or physiologically compatible chemical derivatives as the at least one active ingredient, and that the patch (1) has a shape that is adapted to the anatomical conditions of the application site, wherein the application site is in the face in the area of ​​at least one of the paranasal sinuses,preferably located in the area of ​​the cheek of the person to be treated, in order to enable targeted percutaneous treatment of the sinusitis.

A balloon dilation catheter includes a substantially rigid inner guide member and a movable shaft coupled to a balloon that is slidably mounted on the substantially rigid inner guide member. To treat a sinus cavity of a subject using the balloon dilation the substantially rigid inner guide member is advanced into a drainage pathway of the sinus (e.g., frontal recess or maxillary sinus) of the subject via a nasal passageway. The shaft and balloon are advanced in a distal direction over the substantially rigid inner guide member to place the balloon in the drainage pathway. The balloon is inflated to expand or otherwise remodel the drainage pathway.

The application relates to the technical field of medical devices, and particularly provides a paranasal sinus teaching device which comprises a main body mounting seat, an anatomical mounting piece and a guiding piece, the main body mounting seat comprises a model of a single-side nasal cavity and paranasal sinus, a plurality of containing cavities are arranged in the model, the anatomical mounting piece is detachably mounted on the containing cavities, a plurality of anatomical mounting pieces are arranged in each containing cavity, the plurality of anatomical mounting pieces are used for being selectively mounted in the corresponding containing cavities to form a pathological model combination in different disease states. The problem that a plurality of paranasal sinus models need to be purchased for learning the normal state and various disease states of the paranasal sinus is solved.

The present invention provides a sinus stent, a support strip forming mold and a sinus stent manufacturing method, the sinus stent comprising: a stent body; a first end of the stent body is provided with N support strips uniformly arranged along the circumference of the stent body, each support strip has a first elastic support section close to the stent body and a second elastic support section away from the stent body, the first elastic support section and the second elastic support section are both arc-shaped, the arc top of the first elastic support section faces a first direction, and the arc top of the second elastic support section faces a second direction, the second direction is the direction of the extension line of the central axis of the stent body, and the first direction is opposite to the second direction; N is greater than or equal to 2. Since the present invention can be supported on the sinus cavity and the sinus opening at the same time, the sinus stent can be more firmly supported in the sinus, thereby effectively preventing the sinus stent from falling off with the patient's breathing, and the support effect of the sinus stent can also be better.

The utility model relates to the technical field of medical instruments, in particular to a medicine spraying device used after paranasal sinus surgery, which comprises a medicine spraying bottle body, a medicine outlet pipe is communicated with the medicine spraying bottle body, a bottle cap is arranged on the medicine spraying bottle body, the medicine spraying device further comprises a replacement mechanism, the replacement mechanism is arranged on the medicine outlet pipe, the replacement mechanism comprises a butt joint pipe, a butt joint groove and two fixing frames, and the butt joint pipe is communicated with the butt joint groove. A butt joint pipe is fixedly connected to a medicine outlet pipe, through cooperation of a spring, a fixing frame, a lifting plate, a clamping block and the like, the fixing block can be conveniently limited and fixed, a butt joint groove can be conveniently fixed to the medicine outlet pipe, medical staff can conveniently use disposable sprayers of different specifications according to the illness states of patients and different patients, and rapid postoperative recovery of the patients is facilitated; and through cooperation of a butt joint groove, a disposable spray head and the like, it is avoided that the spray head is cleaned after a patient uses the device, and safety and practicability are improved.

The invention discloses a chronic sinusitis full-automatic segmentation method based on deep learning and related equipment. The method comprises the following steps: acquiring paranasal sinus CT image data of a chronic sinusitis patient, wherein the paranasal sinus CT image data comprises paranasal sinus CT image data of patients with different genders, ages and disease course stages; dividing the paranasal sinus CT image data into a training verification set and a test set, and training an nnUNetV2 model based on the training verification set to obtain a chronic sinusitis region-of-interest segmentation model; and performing full-automatic segmentation of chronic sinusitis on CT image data of a target patient through the segmentation model of the region-of-interest of chronic sinusitis. The problems of low segmentation efficiency, high subjectivity and difficulty in precise segmentation of the chronic sinusitis region-of-interest caused by high complexity and individual variability of the anatomical structure of the nasal cavity and the paranasal sinus can be solved.

The present invention provides an apparatus for collecting nasal secretion samples. 【Solution means】 The apparatus includes a sample collection member having a material for collecting a predetermined amount of nasal secretion samples. The apparatus further includes a handle and an elongated support member that extends between the handle and the sample collection member and supports the sample collection member. The apparatus is configured such that a user holding the handle contacts the sample collection member with the tissue at a target position within the nasal cavity, and the sample collection member collects a predetermined amount of nasal secretion samples at the target position.

The invention discloses an endoscope-holding manipulator based on a Krasserian origami module for paranasal sinus surgery, and belongs to the technical field of minimally invasive surgery robots. The lens-holding manipulator comprises a fixed platform base, a movable platform operating end and at least three branched chain groups for connecting the fixed platform base and the movable platform operating end, each group of branch chains is formed by connecting a plurality of Kreishin origami modules in series; each Kreishin paper folding module comprises three branch chains; the length of a branch chain of the Kreishin paper folding module can be independently controlled; the remote motion center restraining function of the endoscope is achieved through the foldable characteristic of the Krasserian origami module and the kinematics advantages of the parallel origami units. By utilizing the foldability of a paper folding structure and the geometrical characteristics of a parallel mechanism, the parallel mechanism has the advantages of high precision of a remote motion center, compact structure, modularization and expandability, reduces the risk of damage of instruments to fragile tissues in a paranasal sinus endoscopic surgery, improves the operation flexibility, and is suitable for popularization and application in the field of paranasal sinus endoscopic surgery. And the pose adjustment and positioning of the endoscope are realized through the folding / unfolding of the Krislingorigami module and the length change of the branch chains.

A face cradle system; the face cradle system includes a face cradle configured to be used in combination with a host massage therapy table. The face cradle includes an adjustable frame includes an open-ended oval shape having a first-arm extension, a second-arm extension, and an oval portion. The oval portion of the adjustable frame includes a padded forehead hammock positioned at a closed end of the oval portion. The padded forehead hammock features a sinus relief nodule which makes contact upon, and applies pressure to, an area directly above a bridge of a nose. The oval portion, the first-arm extension and the second-arm extension are connected at an adjustable pivot point. The face cradle system promotes proper alignment of the spine, relieves and prevents a user's sinus pressure while in a prone position, and overall facilitates a more beneficial massage.

A nasal stent includes an elongated tubular body having proximal and distal ends extending along a longitudinal axis. The elongated body includes a repeating pattern of W-shaped members extending around the tubular body separated by longitudinally-oriented and offset struts. The elongated tubular body is selectively transitionable between an expanded configuration and a crimped configuration, wherein the pattern of W-shaped members and struts interleave allowing the elongated tubular body to maintain substantially the same length when disposed in the expanded configuration and the crimped configuration.

The invention relates to the technical field of medical instruments and discloses a nasal endoscope multi-angle adjusting assembly which comprises a nasal endoscope body, the nasal endoscope body comprises a light cone and an outer endoscope tube, a through opening is formed in the position, close to the handheld end, of the outer endoscope tube, the outer wall of the outer endoscope tube is fixedly connected with a holder, and the holder is located on the periphery of the through opening. A sleeve corresponding to the through opening is arranged on the outer side of the holder, a knob is rotationally connected in the sleeve, an inner mirror tube is clamped in the outer mirror tube, a working channel is formed between the inner mirror tube and the outer mirror tube, a plurality of limiting rings are clamped in the working channel, an object mirror frame is rotationally connected to the insertion end of the inner mirror tube, and an object lens is fixedly connected to the inner periphery of the object mirror frame. The nasal cavity endoscope has the advantages that the angle of the objective lens is accurately controlled through the up-down knob, an operator can easily obtain visual fields of different angles in the nasal cavity, and the angle of the objective lens can be flexibly adjusted when the nasal cavity side wall, the paranasal sinus opening, the turbinate and other structures are examined.

A method of treating a sinus cavity of a subject includes advancing a distal portion of a light source through a drainage pathway of a sinus cavity and into the sinus cavity and visually observing a transdermal light emitted from the light source. A distal portion of a substantially rigid inner guide member of a balloon dilation catheter is advanced into the drainage pathway, the balloon dilation catheter including a movable shaft including a balloon that is slidably mounted on the substantially rigid inner guide member. The movable shaft and balloon are advanced distally over the substantially rigid inner guide member to place a portion of the balloon in the drainage pathway whereby the balloon is inflated.

A nasal droplet delivery device for delivering a stream of fluid droplets to nasal passageways and sinus cavities includes an ejector mechanism with an oscillation actuator that vibrates an aperture plate with a plurality of openings to generate an ejected stream of droplets from fluid with one or more active agents. The ejector mechanism does not elevate in-situ temperatures or forces that decompose or denature the one or more active agents in the fluid.

The utility model relates to the technical field of nursing instruments, in particular to a rhinitis nursing instrument which comprises a nursing body of an arc-shaped structure, elastic bands capable of being arranged on the head in a sleeved mode are connected to the two ends of the nursing body, the nursing body is provided with a first attaching block attached to the frontal sinus, and a second attaching block attached to the sibelar sinus is formed at the bottom of the first attaching block. Splayed third attaching blocks are formed at the bottoms of the second attaching blocks, and the third attaching blocks are attached to paranasal sinuses on the two sides of the nose bridge respectively; the first attaching block and the third attaching block are each provided with a heating piece. The elastic band is matched with the nursing body and can be arranged on the top of the head in a sleeving mode, the elastic band has elasticity, so that the nursing device can be matched with the heads of different crowds, can be stably worn and is not prone to falling off, at the moment, the first attaching block is exactly attached to the frontal sinus, the second attaching block is exactly attached to the screen sinus, and the third attaching block is exactly attached to the paranasal sinus. The frontal sinus and the paranasal sinus are heated and subjected to physical therapy through the heating piece at the same time, and rhinitis is effectively treated.

The utility model relates to the technical field of medical auxiliary instruments, in particular to a multipurpose nasal cavity drug delivery auxiliary device. The multipurpose nasal cavity administration auxiliary device comprises a gun body and a holding handle installed at the tail end of the gun body. The gun barrel is embedded in the gun body, the gun barrel is hollow, and a spray head assembly is fixedly installed at the end, away from the holding handle, of the gun barrel; the first gun handle pipe is embedded in the gun body, one end of the first gun handle pipe is communicated with the end, away from the spray head assembly, of the gun barrel, and a medicine feeding assembly is installed at the other end of the first gun handle pipe; the second gun handle pipe is embedded in the gun body and located in front of the first gun handle pipe, one end of the second gun handle pipe is communicated with the gun barrel, and the other end of the second gun handle pipe is communicated with a suction connecting piece. The multipurpose nasal cavity medicine delivery auxiliary device has the advantages of being convenient to change medicine for nasal cavity and paranasal sinus and convenient to use.

The invention discloses a processing method and device for a 3D printing module dissection teaching model of a nasal cavity and a paranasal sinus, and can be widely applied to the technical field of teaching data processing. According to the method, after real nasal cavity and paranasal sinus image data are obtained, a 3D virtual model including a bony structure virtual model, a soft tissue structure virtual model, a nerve and blood vessel virtual model or a skull base and eye socket virtual model is constructed according to the real nasal cavity and paranasal sinus image data; according to the 3D virtual model, the printing process of the 3D printing module dissection teaching model is executed to obtain the 3D printing module dissection teaching model with the proportion of the 3D printing module dissection teaching model to the real nasal cavity and paranasal sinus image data being 1: 1, and then nasal cavity and paranasal sinus dissection teaching is conducted according to the 3D printing module dissection teaching model. Therefore, the nasal cavity and paranasal sinus structure can be truly restored through the 3D printing module dissection teaching model, and the 3D printing module dissection teaching effect of the nasal cavity and the paranasal sinus is effectively improved.

A system for accessing a body cavity, such as a paranasal sinus, may include a sinus access member and a handle. The sinus access member may include a rigid support tube, a curved shape memory member slidably disposed at least partially within the rigid support tube, a flexible tube slidably disposed over at least part of the curved shape memory member, and proximal coupling end. The handle may include an engagement mechanism at a distal end for releasably attaching to the proximal coupling end of the sinus access member, a housing for gripping with a hand, a curving slider for extending and retracting the curved shape memory member, and an extension slider for extending and retracting the flexible tube relative to the curved shape memory member and the rigid support tube. The handle may be reusable, and the sinus access member may be disposable.

The application discloses a kind of based on multilevel prompt learning paranasal sinus image automatic identification and segmentation method, it is related to the technical field of computer vision and biological information engineering.The method comprises the following steps: obtaining the multilevel visual features of paranasal sinus;Based on multilevel prompt learning, a multi-view prompt learning model is constructed, and the context prompt, mixed multi-modal prompt and label prompt of the original paranasal sinus image are obtained using the multi-view prompt learning model to obtain the multi-view prompt of paranasal sinus;A paranasal sinus segmentation network is constructed, and the multilevel visual features of paranasal sinus and the multi-view prompt of paranasal sinus are used to obtain the paranasal sinus image automatic identification and segmentation result.The application can solve the problem of lacking medical prior knowledge and sufficient semantics, avoid the continuous adjustment of semantic space during optimization, and reduce the interference of task-independent cross-modal concepts, thereby improving the accuracy of paranasal sinus image automatic identification and segmentation result.

A dilation catheter apparatus includes a shaft, an expandable dilation member, and a bulbous tip. The shaft has a first outer cross-sectional dimension. The dilation member is positioned proximal to the distal end of the shaft. The dilation member is operable to transition between a non-expanded configuration and an expanded configuration. The dilation member is sized to pass through a passageway associated with drainage of a paranasal sinus or a Eustachian tube when the dilation member is in the non-expanded configuration. The bulbous tip is positioned at the distal end of the shaft. The bulbous tip is distal to the dilation member. The bulbous tip has a second outer cross-sectional dimension. The second outer cross-sectional dimension is larger than the first outer cross-sectional dimension. The bulbous tip is removably secured to the distal end of the shaft.

The invention discloses a CRSwNP paranasal sinus automatic segmentation and intrinsic type prediction method and system based on a CT image, and the method is characterized in that the method comprises the steps: collecting a paranasal sinus CT image comprising an axial position layer, a coronal position layer and a sagittal position layer, marking a paranasal sinus region, marking an intrinsic type label, generating and converting the paranasal sinus region into a paranasal sinus 3D image, and forming a CRSwNP image database; the intrinsic type labels comprise eosinophilic type labels and non-eosinophilic type labels; designing a 3D multi-task classification segmentation network model for receiving a 3D paranasal sinus CT image and predicting an intrinsic type category and a paranasal sinus region; training the 3D multi-task classification segmentation network model by using a CRSwNP image database to obtain a prediction model; and predicting the paranasal sinus area and the intrinsic type of nasosinusitis with nasal polyp in the 3D paranasal sinus CT image by using the prediction model. According to the method, automatic segmentation of the paranasal sinus 3D model based on the CT image is realized, and accurate prediction of the CRSwNP intrinsic type is carried out on the basis of the paranasal sinus 3D model, so that a clinician can be guided to carry out individualized accurate treatment.

The utility model relates to an endoscope-guided positioning paranasal sinus precise dosing device. The endoscope-guided positioning paranasal sinus precise dosing device comprises an inverted-V-shaped nose back plate, an inverted-T-shaped rail, a rail pipe, a spherical joint and a threaded pipe nail. The inverted-V-shaped nose back plate coincides with the nose back of a patient in appearance, the nose-near tip end is connected with the upper end of the inverted-T-shaped rail through a spherical joint, the lower end of the inverted-T-shaped rail is provided with a rail pipe, a threaded pipe nail structure is arranged on the side wall of a glenoid fossa of the nose back plate and the rail pipe, the spherical joint can be locked and fixed by screwing a threaded nail, and the positions of the nose back plate and the rail pipe are constant. Positioning of the accurate drug delivery device by guiding and positioning the paranasal sinus through the endoscope: the nose back plate coincides with the nose back of a patient, the endoscope reaches the target paranasal sinus from the anterior nostril through the track tube, the positions of the endoscope and the side wall of the nasal cavity are finely adjusted, so that the track tube does not make obvious contact with the side wall of the nasal cavity, the threaded nail is screwed to lock the spherical joint, the depth of the endoscope is marked, and the endoscope is withdrawn. And a dosing tube with the same length as the marking endoscope extends into the paranasal sinus through the track to implement dosing or flushing.

The invention provides a device for collecting a nasal secretion sample. The device comprises a sample collection member comprising a material for collecting a predetermined volume of a nasal secretion sample. The device also includes a handle and an elongate support member extending between the handle and the sample collection member for supporting the sample collection member. The device is adapted for a user to hold the handle to position the sample collection member in contact with the tissue at a target location within the nasal cavity at which the sample collection member collects a predetermined volume of a nasal secretion sample.

The invention discloses a lipoic acid-dopamine synergistically toughened fibroin composite coating applicable to a paranasal sinus stent, and a preparation method and application thereof, and belongs to the field of surface modification of biomedical materials. The preparation method comprises the following steps: firstly, dissolving lipoic acid and dopamine in a Tris-HCl solution to prepare a lipoic acid-dopamine mixed solution; dissolving water-soluble silk fibroin in ultrapure water to prepare a silk fibroin aqueous solution; and finally, mixing the two solutions to prepare a composite coating preparation solution, coating the surface of a to-be-coated structure with the composite coating preparation solution, and drying to form the composite coating. The composite coating is applied to the paranasal sinus stent, and the paranasal sinus stent with the composite coating on the surface is obtained. The silk fibroin-polylipoic acid-polydopamine ternary synergistic cross-linking system constructed by the invention can realize long-term stability of a flexible polymer network; the preparation method is low in cost and easy and convenient to operate, and the composite coating is compact, uniform and excellent in flexibility and can cooperate with the stent to achieve expansion deformation. The coating has the capabilities of promoting healing by photothermal, efficiently resisting oxidation and inhibiting fibroblast proliferation; the material has a corrosion protection function, and provides a new path for surface modification of paranasal sinus stent materials.

The invention generally relates to systems and methods for targeting of specific tissue(s) of interest within a sino-nasal region of a patient, specifically sinus regions (i.e., ostia and sinus cavities), for the treatment of chronic sinusitis conditions.