22 results about "Nasal sinuses" patented technology

The invention provides a device for collecting a nasal secretion sample. The device includes a sample collection member comprising a material for collecting a predetermined volume of a nasal secretion sample. The device further includes a handle and an elongated support member extending between the handle and the sample collection member and for supporting the sample collection member. The device is adapted for a user holding the handle to locate the sample collection member in contact with tissue at a target location inside the nasal cavity where the sample collection member collects a predetermined volume of a nasal secretion sample.

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 relates to a multi-mode eye-brain collaborative maintenance intelligent device, and belongs to the technical field of eye-brain nursing equipment.The device is provided with an impression stimulation module, the impression stimulation module stimulates mild energy of an impression acupoint, the mild energy can be directly conducted to a paranasal sinus olfactory bulb in the deep part of a nasal cavity, the area is the starting end of paranasal sinus nerves, the paranasal sinus nerves are branches of cranial nerves, and therefore the paranasal sinus acupoint can be stimulated; the neural pathway directly extends to brain hippocampus, brain marginal tissue, pituitary gland and other core structures related to neuronutrition and brain metabolism; after stimulation, the paranasal sinus olfactory bulb and paranasal sinus nerves are activated to form a neural pathway for targeted delivery of the atomized liquid, so that the atomized particles of the brain care liquid are adsorbed on the surface of the paranasal sinus olfactory bulb and permeate into the brain along the activated neural pathway, and meanwhile, the permeability of the blood brain barrier is improved, so that the delivery resistance of the atomized liquid to related functional areas of the brain is further reduced, and the targeted delivery of the atomized liquid is realized. Precise nutrition for cranial nerves is achieved, and the problem that brain maintenance is invalid due to the fact that conventional nasal cavity atomized liquid enters the lung is thoroughly solved.

The application discloses a processing method and device of a 3D printing module dissection teaching model of a nasal cavity and nasal sinus, which can be widely applied in the technical field of teaching data processing. After real nasal cavity and nasal sinus image data are acquired, a 3D virtual model including a bone 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 nasal sinus image data, then a printing process of the 3D printing module dissection teaching model is performed according to the 3D virtual model, so as to obtain a 3D printing module dissection teaching model with a proportion of 1:1 with the real nasal cavity and nasal sinus image data, and nasal cavity and nasal sinus dissection teaching is performed according to the 3D printing module dissection teaching model, so that the nasal cavity and nasal sinus structure can be restored by the 3D printing module dissection teaching model, and the 3D printing module dissection teaching effect of the nasal cavity and nasal sinus is effectively improved.

The application relates to the technical field of medical devices, in particular to a shape-controllable nasal sinus balloon catheter which comprises a main catheter, an adjusting ring and an elastic piece, the inner side of the adjusting ring is provided with a sliding block, the end of the sliding block away from the adjusting ring is provided with an annular plate, a groove is formed in the side of the annular plate close to the adjusting ring, and the elastic piece is located on the two sides of the annular plate. By arranging the adjusting ring, physiological saline flows to the branch pipe through the shunt, flows into the balloon through the branch pipe, and makes the balloon expand. In the process, the adjusting ring drives the sliding block to slide to the clamping block in the groove by rotating the adjusting ring, the circular ring formed by the uniformly-distributed annular plates is gradually reduced, the main catheter is contracted, the speed of the physiological saline entering the balloon is controlled, and the effect of controlling the expansion size of the balloon is achieved.

The utility model discloses a paranasal sinus irrigator capable of collecting liquid, which comprises an irrigating component and a liquid collecting component, the irrigating component is used for providing paranasal sinus irrigating liquid, the liquid collecting component is used for collecting and discharging the irrigating liquid, the irrigating component comprises an irrigating tube, and one end of the irrigating tube extends into the paranasal sinus of a human body for irrigating; the liquid collecting assembly further comprises a liquid collecting pipe, a liquid collecting cavity and a telescopic mechanism, the liquid collecting pipe wraps the periphery of the middle of the flushing pipe, and the liquid collecting cavity is formed in the liquid collecting pipe; the telescopic mechanism is used for enabling the liquid collecting pipe to stretch out and draw back, and the telescopic mechanism is arranged in the liquid collecting pipe and on the periphery of the liquid collecting pipe. The liquid collecting assembly is arranged on the periphery of the flushing pipe, so that liquid medicine obtained after the paranasal sinus is flushed can be conveniently collected; the liquid collecting assembly is provided with a telescopic mechanism, so that a liquid collecting cavity is conveniently compressed to generate suction force, the collecting range is wider, and the collecting rate is improved.

Endoscopic surgery targeted at the sinuses and nasal turbinates assists in managing the symptoms of chronic rhinosinusitis and other conditions. With contemporary techniques, post-operative hemorrhage, synechiae formation and poor wound healing are amongst the most common complications. The present disclosure provides the use of self-assembling peptide matrix, PuraSinus, and significantly reduces the incidence of these post-operative complications, including prevention of synechiae formation and aiding hemostasis.

This disclosure provides a method for evaluating the prognosis of a head and neck cancer patient. The head and neck cancer may be human papillomavirus positive (HPV+) and originate in the upper aerodigestive tract (e.g. oropharynx, nasopharynx, nasal cavity, sinus, or hypopharynx). In addition, the disclosure provides a method for predicting a response of a head and neck cancer patient to a selected treatment. The disclosure also provides a method for generating an improved head and neck cancer biomarker signature for patient prognosis and uses thereof.

The invention discloses a medical drug-loading paranasal sinus stent as well as a preparation method and application thereof. The medical drug-loaded paranasal sinus stent comprises a nasosinusitis treatment drug and medical catalyst-free polycaprolactone loaded with the nasosinusitis treatment drug, the drug loading capacity of the medical drug-loading paranasal sinus stent is 2 to 20 weight percent; the 24-hour burst release rate of the medical drug-loading paranasal sinus stent is lt; the continuous release time is more than or equal to 4 weeks; wherein the medical catalyst-free polycaprolactone is prepared by carrying out ring opening polymerization on double ether bond oxalic acid amide dihydric alcohol serving as an initiator and caprolactone. According to the medical drug-loaded paranasal sinus stent, the risk of catalyst residue is completely eradicated from the source, the stent implantation safety is guaranteed, the controllable degradation performance and the drug slow release effect of the stent can meet the paranasal sinus postoperative repair requirement, and the medical drug-loaded paranasal sinus stent is suitable for in-vivo implantation and supporting of people or animals and has important prospects in the field of chronic nasosinusitis postoperative treatment.

The invention discloses a paranasal sinus cleaning and dosing integrated device, which relates to the technical field of medical instruments and comprises an operation gun which comprises a gun handle and a gun body which are integrally formed. The device has the advantages that the nasal cavity washing function and the local drug delivery function are highly integrated, and controllable washing is achieved through the manual reciprocating pump; through various replaceable administration units (top / side, powder / liquid), the clinical requirements of different focus positions and medicine dosage forms are met; especially, through the cooperation of the flexible attaching piece on the side face of the nasal plug and the extending frame, stable face supporting can be provided for the device in the dosing process, the dosing precision and repeatability are greatly improved, mistaken touch damage to the interior of the nasal cavity, especially the postoperative wound surface is effectively avoided, operation is easy and convenient, and adaptability is high.

The invention discloses a pressure-controllable flushing appliance for paranasal sinus cleaning, and relates to the technical field of paranasal sinus cleaning, the pressure-controllable flushing appliance comprises a base, a water supply assembly, a T-shaped groove, a T-shaped block, a left mounting seat, a first motor, a lead screw, a right mounting seat, a first bearing, a moving seat, a connecting rod, a lifting assembly, a mounting plate, a locking nut, a spray pipe, a nozzle assembly and the like; through cooperation of an adjusting screw rod, a valve plate and a hand wheel in the nozzle assembly, the flow and pressure of the flushing fluid can be manually and accurately adjusted. The valve plate can be driven by rotating the hand wheel to change the sectional area of the inner channel of the nozzle body, so that the pressure is flexibly controlled, paranasal sinus mucosa is prevented from being damaged due to too large pressure or incomplete cleaning due to too small pressure is avoided, and the individual requirements of different users for flushing pressure are met.

The present application relates to a kind of nasal sinus dental implant, comprising: dental implant body, external thread and multiple spiral cut slots, the opposite ends of the dental implant body are respectively set as group end and drill end, and, the position of the drill end of dental implant body is provided with recess to be connected with each spiral cut slot and drill area to surround the periphery of recess, and the spiral direction of external thread and spiral cut slot is not same with each other, wherein, drill area is distinguished into multiple drill segments by multiple spiral cut slots, the opposite sides of each drill segment are distributed in different height positions, so that drill segment has drill low and drill high higher than drill low, thereby, when nasal sinus dental implant is implanted in alveolar cavity and contacts the bottom surface of alveolar cavity, drill end can slowly cut alveolar cavity by drill low, and then can avoid the idle running situation that nasal sinus dental implant only rotates without moving.

The present invention relates to the field of medical devices, specifically a maxillary sinus natural opening exploration and expansion kit. Currently, nasal endoscopic surgery is used to treat sinusitis and other diseases, and the uncinate process is usually removed to achieve the patency of the maxillary sinus natural opening, which has many impacts on the patient's postoperative recovery, nasal cavity and sinus function, etc. The technical solution of the present invention includes a probe and expander and an aspirator combination of a curved rod and a curved tube structure. The structural design conforms to the overall spatial structure of the human nasal cavity, maxillary sinus, and sinus orifice and nasal meatus complex. For most patients in clinical practice, this device can avoid the interference of nasal cavity structures such as the front end of the middle turbinate on the treatment operation, and achieve the exploration and expansion of the maxillary sinus natural opening while retaining the uncinate process, and use the aspirator to flush and administer medicine to the maxillary sinus cavity. The patient does not need to be hospitalized for surgery, which avoids the impact of surgical treatment on the patient's future life, greatly reduces the pain and damage during the treatment process, and alleviates the economic and psychological burden of the patient, which is in line with the concept of minimally invasive surgery.

The utility model relates to the technical field of medical instruments, in particular to a nursing device with double functions of negative pressure suction and nasal cavity cleaning, which comprises a tube body, a sealing plug, a partition plate, a baffle plate, a liquid inlet tube, a sleeve, a transfusion component and a mounting component, the sealing plug is sleeved at one end of the tube body and is fixedly connected with the tube body, the partition plate is fixedly connected with the tube body, and the baffle plate is fixedly connected with the tube body. The baffle is fixedly connected with the partition plate and located at one end of the partition plate, the interior of the pipe body is divided into a first cavity and a second cavity through the partition plate and the baffle, one end of the liquid inlet pipe penetrates through the pipe body and communicates with the second cavity, the other end of the liquid inlet pipe is fixedly connected with the sleeve, and the liquid conveying assembly is connected with the sleeve in a clamped mode. The installation assembly is arranged at one end of the tube body, through the arrangement, liquid medicine can flow into the paranasal sinus while purulent secretions are sucked out, and therefore the treatment effect is enhanced.

This invention provides a nasal guard, which can be constructed according to various manufacturing techniques (e.g. molding. 3D printing, etc.) for use during nasal sinus and skull base surgery to reduce aerosolized transmission to protect surgical staff, conserve the volatile supply of personal protective equipment (PPE) and reduce the introduction of particles into the operating room. The novel nasal guard, according to embodiments of this invention, can be readily applied to the patient's nose / nasal region during surgery and, while exposing the nostrils for access by surgical procedures, reduces aerosol emission from the nares. This allows for an adequate seal on a variety of face sizes / shapes without impeding access for surgical tools and / or does not otherwise interfere with surgical approach. The nasal guard herein is also compatible with standard suction equipment. The nasal guard is easy-to-use and ergonomic, and can be (is) constructed from biocompatible materials.

A method of treating human or animal tissue, the method comprising the step of: i. directing a stream of an aqueous liquid comprising gas bubbles excited by acoustic energy towards a wound or anatomical pocket in human or animal tissue, or towards an anatomical space or potential space in human or animal tissue, or towards soft or hard tissue in an oral cavity or elsewhere in the human or animal body, or towards tissue in a nasal cavity, or towards tissue associated with sinuses, eye, ear, digestive and genito-urinary systems, thereby to treat the human or animal tissue with the stream. The output stream can clean a wound in human or animal tissue, and can treat the wound by healing the wound, for example by stimulating fibroblasts in the wound tissue and causing, promoting or enhancing re-epithelialisation of epidermal tissue in the wound.

A mouthpiece device and method for helping human users with congested sinuses breathe freely through their mouths while sleeping while minimizing the risks of dry mouth and drooling. The device fits between the user's jaws and is configured to apply a gentle jaw and lip opening pressure sufficient to at least partially open a sleeping user's jaw and lips while the jaw and lip muscles are relaxed. At the same time, the device is configured to so that when the user, while still sleeping, activates their jaw or lip muscles to swallow, this action overcomes the gentle opening force, allowing the user to easily swallow without conscious effort. Methods of configuring the device shape and opening forces are also taught. These include using implanted sensors, processors, and actuators configured to optimize the opening forces according to user physiology; and / or wireless connection to external sensing and control devices.

The application belongs to the technical field of medical treatment, and particularly relates to a nasal sinus ostium support manufacturing system and method, which comprises a fixing rod, a base frame connected to the fixing rod, a sliding plate connected to the base frame, a clamping plate connected to the sliding plate, an outer cover fixed to the base frame, a plurality of water holes formed in the outer cover, a connecting ring detachably connected to the outer cover, a plurality of skin-like adhesive strips fixed to the connecting ring, and an auxiliary plate slidably connected to the outer cover and capable of being fixed to the outer cover through bolts, and further comprises a magnetic plate fixed to the outer cover. The manufacturing method of the nasal sinus ostium support manufacturing system comprises the following steps: step one: uniformly storing a plurality of formed nasal sinus ostium supports, and taking one nasal sinus ostium support to be cleaned when cleaning is needed; and the method provides an equipment capable of independently cleaning different types of single nasal sinus ostium supports and improving the cleaning effect.

This utility model relates to the field of medical device technology, specifically a nasal irrigator suitable for drainage, irrigation, and aspiration of the nasal cavity. It includes an irrigation tube, a suction tube, an outer tube, a stainless steel spring, a suction tube connector, a sealing plug, a fixing seat, a sealing ring, a housing, a suction connecting tube, an irrigation connecting tube, a suction tube connector, and an irrigation tube connector. The nasal irrigator has simultaneous irrigation and aspiration functions, enabling simultaneous irrigation and aspiration of the nasal cavity. Nasal irrigation comfort is significantly improved. The irrigation tube of the nasal irrigator is thin and can be bent at any angle, facilitating irrigation of deep cavities in the nasal cavity and sinuses.

The utility model provides a high-definition paranasal sinoscope optical system, and relates to the technical field of endoscopes. A high-definition sinoscope optical system comprises an objective lens system; the steering system comprises a plurality of steering units which are arranged in sequence; the objective lens system, the steering system and the eyepiece system are sequentially arranged from the object space to the image space; wherein the number of the steering units is even, and the eyepiece system forms an inverted image. According to the utility model, the entrance pupil diameter of the system is increased by arranging and using the even number of groups of steering units, so that the angular resolution of the sinoscope system is greater than 4.8 c / degree, and the high-definition standard is achieved.

The invention discloses a compound cordate houttuynia nasal drop and a production method and application thereof.The compound cordate houttuynia nasal drop is prepared from, by weight, 2000 parts of cordate houttuynia volatile oil, 0-4000 parts of honeysuckle volatile oil, 24-30 parts of sodium chloride, 16-28 parts of a surfactant, 1-2 parts of a bacteriostatic agent, 10-16 parts of a buffer pair and 0-2000 parts of purified water, the compound cordate houttuynia nasal drop is free of viscosity, the osmotic pressure is 275-285 mOsm / L, and the pH value of the compound cordate houttuynia nasal drop is 7-8. The pH value is stabilized between 5.5 and 6.5, the content of effective components in the heartleaf houttuynia herb volatile oil can be remarkably increased, although the heartleaf houttuynia herb volatile oil cannot be dripped into the paranasal sinus, nares face upwards and the paranasal sinus is changed from a high position to a low position by adjusting the position of the head, normal movement of nasal cilia is not affected after the heartleaf houttuynia herb volatile oil is dripped into the nasal cavity due to the non-viscosity formula design, and the liquid medicine can be rapidly distributed on the mucosa of the nasal cavity and flows into the paranasal sinus along the nasal cavity. The medicine is in contact with paranasal sinus mucosa to play a pharmacodynamic role, so that the aim of simultaneously treating rhinitis and nasosinusitis is fulfilled.