20 results about "Nasal endoscope" patented technology

The invention relates to a minimally invasive implantable frontal lobe brain-computer interface method and device, and the method comprises the steps: constructing an individualized brain three-dimensional model according to CT and MRI image data of a patient, presetting an optimal nasal implantation path, and carrying out the implantation of the patient through a nose under the dual guidance of a nasal endoscope and a three-dimensional navigation system, constructing a skull base passage through minimally invasive trimming of a nasal cavity / paranasal sinus structure, and performing real-time matching and overlapping on an endoscope view and the three-dimensional model by using a rigid body transformation algorithm to display the position of a surgical instrument; windowing at a preset target point, implanting the flexible electrode array into a target brain region according to a planned depth and angle through a controllable propulsion mechanism, and establishing a neural signal acquisition or stimulation interface; intelligent mode recognition is carried out on the collected neural signals, the intention or brain state of the user is decoded, and corresponding neural stimulation or feedback signals are generated. According to the method, accurate, safe and minimally invasive clinical intervention is realized through a full-chain technical scheme of individualized planning, real-time navigation, minimally invasive implantation and biological integration, and the application value of a brain-computer interface technology is remarkably improved.

The invention provides a traditional Chinese medicine preparation for treating or improving chronic rhinitis, and relates to the field of traditional Chinese medicine pharmacy, and the traditional Chinese medicine preparation comprises patrinia, herba siegesbeckiae, Japanese metaplexis pericarp, oroxylum indicum, adenophora stricta, radix ophiopogonis, radix polygonati officinalis, rhizoma sparganii, fructus kochiae, schizonepeta, cortex dictamni, cortex lycii radicis and salvia chinensis. The traditional Chinese medicine preparation can effectively inhibit LPS-induced excessive inflammatory response of HNEpC, also can significantly reduce VAS score, SNOT-20 score and nasal endoscopic Lund-Kenne score of chronic rhinitis patients, effectively relieves core symptoms such as nasal obstruction, running nose and hypoolfaction, relieves negative effects of diseases on sleep, emotion and daily activities of the patients, relieves nasal mucosa edema, reduces abnormal secretions, and has a good treatment effect on chronic rhinitis. The repair of damaged mucosa is promoted, and the organic lesion of the nasal cavity is effectively improved. The traditional Chinese medicine preparation has high total clinical treatment rate, provides a better and safer new scheme for clinical treatment of chronic rhinitis, and has important clinical application value.

The invention relates to the technical field of biomedical materials, and discloses a preparation method of an injectable composite support material for denasal endoscopic skull base reconstruction, and the method comprises the following steps: preparing a component A aqueous solution and a component B non-aqueous phase paste; the component A comprises a hyaluronic acid derivative grafted with dopamine and alginate. The component B is paste in which calcium salt solid-phase particles, enzyme, polymer microspheres and nanoscale fumed silica are dispersed in a non-aqueous phase dispersion medium, and the nanoscale fumed silica is used for inhibiting solid-phase particle sedimentation. According to the method, the prepared component A and the prepared component B are respectively packaged in a double-component application device. According to the invention, active components are isolated in a non-aqueous phase, and controllable operation time, firm adhesion to tissues and mechanical support provided by polymer microspheres are realized through a staged curing mechanism of ionic crosslinking and enzymatic crosslinking during use; the problem that an existing material is difficult to consider storage stability, operation convenience and composite functionality at the same time is solved.

The utility model relates to a suction tube fixing device of a nasal endoscope, which comprises the nasal endoscope and a suction tube, and further comprises a main body fixing column, the main body fixing column is made of an elastic material, a first through hole and a second through hole which are parallel to each other are arranged in the main body fixing column, and both the first through hole and the second through hole penetrate through the front end and the rear end of the main body fixing column. The first through hole is in interference fit with the front end of the nasal endoscope, and the second through hole is in interference fit with the front end of the suction tube. Compared with the prior art, the nasal endoscope and the suction tube can be grasped by one hand during use, the other hand of a doctor is liberated, surgical instruments can be conveniently taken for surgical operation, the whole device is convenient and reliable to use, and the working efficiency of the doctor is greatly improved.

The utility model relates to the technical field of medical auxiliary equipment, in particular to a nasal endoscopic postoperative nasal paste which comprises fixing bands and a skin attaching layer, binding bands are movably installed on the fixing bands, the fixing bands are symmetrically installed on the two sides of the skin attaching layer, and fixing strips are fixedly installed on the sides, close to the skin attaching layer, of the fixing bands. The fixing strips are symmetrically and fixedly installed on the two sides of the skin attaching layer. Compared with the prior art, air circulation is promoted through the funnel-shaped holes in the surface layer, wound dryness is maintained, and exudate is guided to flow; the outer display layer is made of a PE (polyethylene) material and is not easy to leak to the outer surface; the binding belt realizes personalized fitting degree and is convenient to use and store on one side; the outer layer structure can visually display the bleeding amount, feedback is provided through color change and expansion of polyurethane foam, continuous monitoring is achieved, self-monitoring and timely replacement of a patient are facilitated, and the infection risk is reduced.

The invention provides an eCRSwNP nasal endoscopic postoperative treatment method for regulating acidophilic granulocyte activity based on acupuncture, and relates to the technical field of traditional Chinese medicine for preventing and treating nasosinusitis diseases. According to the eCRSwNP nasal endoscopic post-operation treatment method for adjusting the acidophilic granulocyte activity based on acupuncture, accurate adjustment of the acidophilic granulocyte activity is achieved through a synergistic scheme of a nasal endoscopic operation, perioperative drug treatment and standardized acupuncture treatment, the postoperative recurrence rate is reduced, and the nasal symptom and life quality of a patient are improved. Acupuncture point selection, operation specifications, treatment frequency and treatment course of acupuncture are defined, a repeatable and generalizable standardized treatment scheme is formed in combination with strict patient screening standards, a quality control system and ethical guarantee, the technical problems that existing eCRSwNP postoperative treatment is lack of targeted immunoregulation means and the recurrence rate is high are solved, and the therapeutic effect of the eCRSwNP postoperative treatment is improved. And a new clinical path is provided for traditional Chinese medicine intervention on refractory nasosinusitis diseases.

The invention relates to a medicated thread for treating nasopharynx cancer, a preparation method and a treatment method, and belongs to the field of medical treatment, the medicated thread is prepared by fusing toad skin small molecule peptide extracted by soaking with acetic acid, iron ions provided by medicinal ferrous sulfate and iodine glycerin. The treatment method comprises the following steps: precisely embedding the medicated thread into a nasopharyngeal tumor under the guidance of a nasal endoscope, and combining microwave treatment after 3-5 days. The synergistic effect of the Fenton reaction initiated by iron ions and the tumor anti-oxidation system inhibited by the toad skin small molecule peptide effectively induces ferroptosis of tumor cells, and the treatment effect is enhanced by combining the heat effect of microwaves. According to the invention, minimally invasive targeted therapy is realized, anti-tumor immunity of a body can be activated, and a new treatment strategy is provided for nasopharynx cancer.

The invention relates to the technical field of medical equipment, and discloses a transnasal endoscopic surgery channel device which comprises an upper shell medical equipment technology and a lower shell medical equipment technology, and a middle release position mechanism is arranged between the upper shell medical equipment technology and the lower shell medical equipment technology. The upper shell medical equipment technology and the lower shell medical equipment technology are both used for providing installation positions, the moving mechanism medical equipment technology is arranged between the upper shell medical equipment technology and the lower shell medical equipment technology, and the positioning mechanism medical equipment technology is arranged in the upper shell medical equipment technology. The retreating and feeding of the internal thread piece and the outer sheath tube are controlled through the rotation of the middle release position piece, so that the outer sheath tube can be controlled to reset when the sheath net does not completely leave from the interior of the outer sheath tube, the sheath net is sleeved with the outer sheath tube again, then the sheath net can be recycled, an error space can be reserved for an operator, and the safety of the operator is improved. The error-tolerant rate of an operator is improved, and the operation difficulty is reduced.

The invention provides a nasal polyp automatic grading model training method, a scoring method, a system and equipment, and relates to the technical field of image analysis. In order to solve the problem that automatic grading of nasal polyp of a chronic sinusitis patient is difficult to realize in the prior art, an endoscopic image set containing different grades of nasal polyp score marking information is constructed based on nasal endoscopic image data of the patient, and a preset target detection model is trained by using the image set, so that the classification of the nasal polyp of the chronic sinusitis patient is realized. Therefore, the preset target detection model can directly learn and internalize the international standard of nasal polyp grade scoring, and then the preset target detection model can stably learn the nasal endoscope characteristics covering each scoring grade through the full-process training of data enhancement, cross validation and hyper-parameter tuning, so that the accuracy of the nasal endoscopy is improved. And the output nasal polyp grade score has both automation and accuracy, so that the core technical bottleneck of automatic nasal polyp grading under the endoscope is solved.

A method for constructing a clinically-relevant large animal model of traumatic optic neuropathy, employing a goat with orbital anatomy and optic nerve structure similar to humans as a model animal, overing the defects existing in other animals as TON model animals. The target model goat is obtained by screening parameters, such as a maximum transverse diameter of a coronal plane of a body of sphenoid bone and a wall width of a sphenoid bone, thereby facilitating the exposure of an optic nerve in a optic-canal segment under a nasal endoscopic surgery and quantitative injury. With the optic nerve injury animal model, the clinical TON pathogenesis can be explored by studying the optic nerve at the injured optic canal. In the prepared TON animal model, the injured optic nerve is closer to the brain, which is beneficial to rebuilding the synaptic connection.

The application discloses a dynamic positive and negative pressure coordinated secondary throwing type manual nasal washing device and a use method thereof. The nasal washing device is composed of a main body which is integrally formed of a flexible resilient material, the main body contains an olive-shaped sealing head matched with a nostril and a capsule-shaped head manually extruded, the two are communicated to form a cavity containing a nasal washing liquid, a neck is arranged at the connecting position, a sterile film is arranged at the opening of the sealing head, and the elastic modulus of the main body material is accurately configured. The cavity is pre-filled with a rheological modified nasal washing liquid containing sodium carboxymethyl cellulose, glycerol and hypertonic sea salt. The use method is to generate a pulse type positive pressure by rapid extrusion, release the negative pressure generated by the capsule-shaped head, and repeat the positive and negative pressure operation to realize the circulation and emptying of the secretion. The application realizes the accurate cleaning of the nasal cavity anatomical dead space, significantly improves the biofilm removal efficiency, takes into account the use safety and the mucosa repair effect, is a secondary throwing type design, is simple and convenient to operate and carry, and can be widely applied to the nursing of chronic sinusitis and allergic rhinitis and the postoperative rehabilitation of nasal endoscopy.

This invention discloses an end-expandable neuroendoscopy, belonging to the field of medical device technology. The invention includes an endoscope body, an end-expanding mechanism, and a control handle. The endoscope body is a hollow tubular structure with an imaging channel, an illumination channel, and an instrument channel inside. Multiple radially extending storage grooves are formed on the distal wall of the tube. The end-expanding mechanism is located inside the endoscope body and includes a drive rod sleeved outside the imaging channel and multiple arc-shaped expansion flaps. One end of the drive rod extends through the control handle, and the other end is hinged to the arc-shaped expansion flaps. In the closed state, the arc-shaped expansion flaps are completely stored in the storage grooves. By rotating the expansion adjustment knob on the control handle, the drive rod can be moved axially, controlling the arc-shaped expansion flaps to flip out or retract from the storage grooves, thus achieving the opening and closing of the end. This invention has a simple and compact structure, allowing for channel establishment and surgical operation to be completed in a single insertion, effectively reducing brain tissue damage and simplifying the surgical procedure.

A nasal endoscope with a flushable lens relates to the field of medical instruments and comprises an extension rod, an optical lens, a holding handle, imaging equipment, a flushing device and a liquid suction device. The optical lens is arranged at the end of the extension rod; the holding handle is coaxially connected with the extension rod; the imaging equipment extends into the extension rod from the holding handle and is connected with the optical lens for presenting an image; the flushing device comprises a spraying pipe and a spraying mechanism, and the spraying pipe is arranged in the extension rod and faces the mirror surface of the optical lens; the liquid suction device comprises a liquid suction pipe, a liquid suction head and a negative pressure mechanism. Water can be sprayed to the lens through the spraying pipe to wash dirt on the lens, observation is facilitated, the lens does not need to be repeatedly taken out to be wiped, the examination and operation efficiency is improved, a patient is often in a sitting and lying position during nasal endoscopy, and if water spraying cleaning is needed, the liquid suction hole is formed in the rear portion of the lens, so that cleaning is more convenient. And the liquid can be timely sucked away from the liquid suction hole when flowing out downwards along the extension rod.

The invention discloses a nasal endoscopic secretion segmentation method based on anatomical structure perception. The method comprises the following steps: acquiring a plurality of training samples; the method comprises the following steps of: generating anatomical sub-region representation and a pseudo tag with spatial and semantic consistency through an anatomical structure modeling mechanism according to a nasal endoscope image and a secretion tag; dissecting the sub-region representation and the pseudo tag, and generating multi-scale image features through a multi-head self-attention and position enhancement adaptation mechanism; carrying out cross-region contrast learning based on the nasal endoscope image so as to extract a multi-scale prediction mask from the multi-scale image features; and fusing the multi-scale prediction masks, and determining secretions in the nasal endoscope image. Therefore, through a progressive technical path of structured modeling (anatomical prior), adaptive perception (regional dynamics), relation learning (cross-regional comparison) and information fusion (multi-scale), the core problem in nasal endoscopic secretion segmentation is systematically solved, and the accuracy of secretion identification in a nasal endoscopic image is improved.

The invention relates to the technical field of medical instruments, in particular to an auxiliary device for a nasal endoscopic surgery, which has the functions of cleaning a lens and preventing aspiration of the throat during the surgery. The auxiliary device comprises an outer-layer hose; one end of the outer-layer hose is connected with an external suction device, and a water injection pipe is arranged on the side, close to the external suction device, of the outer-layer hose. A balloon is arranged at the end, away from the water injection pipe, of the outer-layer hose, the outer-layer hose is allowed to be clamped in the nasal posterior hole, and a side suction opening is formed in the side, close to the water injection pipe, of the balloon end of the outer-layer hose. The device can prevent blood from flowing to the throat and the digestive tract in the operation, so that aspiration of the throat is prevented, and meanwhile, the phenomenon that a lens fogs due to backflow gas in the operation can be prevented; blood in an operation cavity can be continuously sucked by matching with an external suction device, and a lens of an endoscope can be cleaned by matching with an external flushing device.

The invention belongs to the technical field of medical instruments and discloses a nasal endoscope dilation cannula which comprises a cannula structure, the cannula structure comprises a cannula body, the far end of the cannula body is connected with a semispherical protection end to form an integrated protection structure, and a center hole is formed in the center of the semispherical protection end to facilitate passing of surgical instruments. A flushing through hole and a suction through hole are sequentially formed in the tube wall of the integrated protection structure from top to bottom in a penetrating mode, the cannula body is sleeved with a plurality of annular air bags in the length direction of the cannula body, a plurality of first air bag inflation tubes communicated with the annular air bags are arranged in the tube wall of the cannula body, and an extrusion air bag is arranged on the hemispherical protection end. Constant rigid support is provided through the arranged cannula body, the flushing through hole and the suction through hole are located in the inner wall of the cannula body, the surgical operation space is not additionally occupied, collapse of a surgical area caused by normal tissue restoration of the nasal cavity is prevented, and a surgical channel is kept not to deform in the whole process.

The invention provides a preoperative training method and device, and relates to the field of medical instruments. The device comprises an elastic inflation part, an inflation unit and a pressure monitoring unit, wherein the elastic inflation part is composed of a pair of deformation parts of an ellipsoidal structure; the deformation part at least has a first state and a second state, the volume of the deformation part in the first state can freely extend into the nasal cavity of the patient, and the volume of the deformation part extending into the nasal cavity of the patient at least seals a nasal cavity breathing channel of the patient in the second state; the inflation unit is used for inflating the deformation part, and the pressure monitoring unit is used for monitoring the pressure of the deformation part to determine the pressure change rate in the deformation part so as to adjust the inflation rate of the deformation part; during training, the elastic inflation part is limited and fixed in the nasal cavity of a patient, and then the patient is guided to conduct respiratory function training and swallowing function training in the nasal blockage state. By arranging the preoperative training device, the nasal cavity filling effect after the nasal endoscopic surgery is truly simulated, and a safe and scientific quantitative training guidance scheme is achieved.

The application discloses a non-contact nasopharyngeal tissue hardness measuring endoscope, and relates to the technical field of nasopharyngeal detection equipment. The non-contact nasopharyngeal tissue hardness measuring endoscope comprises an endoscope body, a probe body and a host control unit; the probe body is an elongated instrument capable of entering the nasopharynx through the nasal cavity, and an optical observation module and a micro-displacement detection module are coaxially integrated on the front end of the probe body in the axial direction; the non-contact mechanical excitation module further comprises a hemispherical porous micro-nozzle and an excitation control unit; the hemispherical porous micro-nozzle is rotatably buckled with the front end of the probe body; the micro-nozzle comprises a hemisphere, the micro-displacement detection module is axially inserted into the middle part of the hemisphere; a spherical shell-shaped air groove is formed in the interior of the hemisphere, and a micro-pore communicating with the air groove is formed on the spherical surface of the hemisphere; the micro-pores are arranged in an annular layered and optical axis staggered manner, so that the biopsy positive rate is significantly improved, the pathological false negative rate is reduced, and the clinical diagnosis adaptability is improved.

The invention provides a nursing device for postoperative dressing change of a nasal endoscope in the otolaryngology department, which structurally comprises a bearing nursing structure, a movable base, a fixed ring, a supporting rod, a lighting plate, a hinge arm and a collecting groove, the bearing nursing structure is arranged outside the supporting rod through a fixing ring and a hinge arm, a collecting groove is formed in the middle of the bearing nursing structure, and the supporting rod and the lighting plate are arranged on the upper portion of the movable base and electrically connected. The distance between the supporting plate and the rubber strip is adjusted in the radial direction of the jaw of the patient at the edge of the tray through the rubber strip and the supporting plate by opening the positioning buckle, the tray and the outer wrapping strip can be changed in a conical state, and the rubber strip and the supporting plate surround the outside of the jaw of the patient, so that the jaw of the patient faces the direction opposite to the illumination plate. And the angle change of the tray and the limiting structure can limit the excretion direction of the mouth and nose pollutants of the patient and guide the pollutants to be better discharged into the collecting tank, so that the pollutants are prevented from spurting.

The utility model belongs to the technical field of medical instruments, and particularly relates to a medicine carrying nasal cavity protection device which comprises a body, the near end of the body is an in-vivo outer portion, the far end of the body is a nasal cavity portion, a plurality of reinforcing ribs are arranged on the outer surface of the nasal cavity portion in a surrounding mode, the whole body is in a conical tube shape, and a medicine carrying conveying structure is arranged on the body. The medicine carrying and conveying structure is designed on the outer surface of the body and used for conveying medicine to the nasal cavity, in the transnasal endoscopic surgery, the medicine is temporarily stored through the medicine carrying and conveying structure, then the medicine carrying nasal cavity protection device for storing the medicine is plugged into the nasal cavity, and under the action force of repeated in-and-out friction or extrusion of instruments, the medicine carrying nasal cavity protection device can be used for protecting the nasal cavity. The medicine flows into the nasal cavity from the medicine carrying conveying structure, so that the risk of wound infection is reduced, and the pain of a patient is reduced.