14 results about "Tympanic cavity" patented technology

The invention relates to the technical field of medical data monitoring and early warning, in particular to a dynamic monitoring and early warning system for abnormal function of Eustachian tube. The system is characterized in that a data acquisition module acquires time sequence data of various eustachian tube state parameters such as tympanic chamber vibration, pharyngeal vibration and tympanic chamber air pressure, when a human body is yawn or swallowed, the eustachian tube is opened, the larger the opening is, the stronger the vibration of the tympanic membrane and the pharyngeal is, and the transmission decibel to an external auditory canal is increased, so that a eustachian tube opening section positioning module analyzes the characteristics to determine the auditory canal opening section; the opening amplitude of the Eustachian tube is accurately obtained, and an opening section is accurately cut out; after the Eustachian tube is opened, the air pressure in the tympanic chamber approaches and tends to the external auditory canal air pressure, the health index analysis module divides an approaching section and a leveling section in an opening section based on the air pressure change consistency, analyzes the air pressure change correlation by fusing multi-aspect information, and obtains health indexes by combining section length difference and air pressure difference characteristics; and finally, monitoring and early warning are performed on the Eustachian tube of the monitored object based on the health indexes in a monitoring and early warning module.

The present invention relates to the field of medical device technology, and in particular to a middle ear tympanic cavity effusion suction device, comprising a puncture needle, the bottom end of the puncture needle is fixedly connected to a hose, the right end of the hose is fixedly connected to a suction port of a suction tube, the puncture needle and the outer side of the suction tube are jointly provided with an auxiliary fixing mechanism, the auxiliary fixing mechanism comprises a movable seat, a deceleration and limiting mechanism is provided at the upper left end of the movable seat, a rotating seat is rotatably provided on the inner side of the connecting plate near the upper end, and a high-efficiency negative pressure mechanism is provided at the bottom end of the rotating seat and on the outer side of the hose. The present invention installs the puncture needle, the hose and the suction tube on the auxiliary fixing mechanism, thereby realizing precise position adjustment of the puncture needle according to the position of the tympanic membrane of different patients, the deceleration and limiting mechanism ensures the controllable puncture speed and depth, and the high-efficiency negative pressure mechanism can effectively control the air and liquid circulation state inside the hose through the forward button and the reverse button.

The invention relates to the technical field of medical instruments, and discloses a flow-adjustable tympanic cavity administration capillary puncture microneedle which comprises an administration tube and a guide core. The dosing tube comprises a puncture part, an infusion part and a limiting part located at the far end of the infusion part, the puncture part partially extends into the infusion part and is communicated with an inner cavity of the infusion part through the connecting port, the puncture part is used for puncturing the tympanic membrane, and the limiting part is used for abutting against the outer surface of the tympanic membrane. The guiding core body is partially located in the inner cavity of the infusion part and is suitable for rotating around the center axis of the infusion part in the first direction to the end to gradually block the connecting opening or rotating in the second direction opposite to the first direction to the end to be gradually away from the connecting opening. Compared with a traditional puncture microneedle, the puncture microneedle provided by the invention can accurately adjust the administration flow and control the administration amount. Meanwhile, the device is simple in structure, low in material cost and suitable for large-scale production, popularization and application.

The utility model discloses a novel anti-drop ear ventilation pipe, which comprises a pipe body with an external auditory canal end and a tympanic chamber end, a through channel is arranged in the pipe body, the inner side wall of the pipe body axially extends towards the tympanic chamber end to form a bending part, and when the tympanic chamber end of the pipe body is implanted into a tympanic membrane, the tympanic membrane is inserted into the tympanic chamber end of the pipe body. And the bending part can be bent towards the periphery of the tube body so as to enlarge the contact surface with the inner side of the tympanic membrane. The ventilation pipe can be better fixed to the tympanic membrane after the bending part with the extension bending performance is expanded and unfolded, the ventilation pipe is effectively prevented from falling off, the surface of the pipe body is provided with the silver ion coating with the antibacterial characteristic, the antibacterial effect is achieved, the pipe body is provided with the cutting edge, the tympanic membrane can be cut open conveniently, the ventilation pipe is arranged, and the ventilation pipe is convenient to use. And the use experience of the user can be better improved.

This invention provides a biodegradable Eustachian tube support and a biodegradable Eustachian tube support system. The biodegradable Eustachian tube support includes a connected Eustachian tube receiving portion and a middle ear receiving portion. The Eustachian tube receiving portion, when in an expanded state without external force, is tubular and has a hollow, through-hole cavity. After implantation into the Eustachian tube, the Eustachian tube receiving portion is in the expanded state to open the Eustachian tube. The middle ear receiving portion includes a linear base structure. When not subjected to external force, the base structure itself forms a three-dimensional winding shape in space. After implantation into the tympanic cavity, the base structure forms the three-dimensional winding shape, filling the area of ​​the tympanic cavity adjacent to the Eustachian tube to maintain communication between the tympanic cavity and the Eustachian tube, while preventing the Eustachian tube receiving portion from sliding. Both the Eustachian tube receiving portion and the base structure are made of biodegradable materials.

The utility model belongs to the technical field of medical instruments, and provides a controllable nasal cavity cooling brain protection device, which comprises a cooling mechanism, a nasal cavity cooling mechanism and a nasal cavity cooling mechanism, and the nasal cavity cooling mechanism comprises a pressurizing cooling tank and an intubation tube assembly which is provided with at least one hose capable of being inserted into the nasal cavity and a flow regulating valve; the temperature measuring mechanism is provided with at least one temperature measuring probe capable of extending into the auditory meatus tympanic chamber; and the control mechanism is used for adjusting the conveying flow of the cooling spray through the flow adjusting valve according to the tympanic membrane temperature data detected by the temperature measuring probe. The controllable cooling brain protection device in the nasal cavity is convenient to carry, can be used for carrying out brain hypothermia treatment protection on site or in the transportation process, shortens the intervention opportunity of hypothermia treatment on a patient, reduces brain tissue damage caused by brain temperature rise, improves the neurological function prognosis condition of the patient, and meanwhile, can be used for protecting the patient. The brain temperature change is monitored in real time through the temperature measuring mechanism, and the conveying amount of the cooling spray is adjusted according to feedback, so that the brain temperature is maintained at a constant level.

A method of administering, to a tympanic cavity, a pharmaceutical composition using a drug delivery device implanted through a tympanic membrane, the method including fluidly connecting the drug delivery device to an injection system via an inlet of a flexible catheter of the drug delivery device; and introducing, to the tympanic cavity, a volume of the pharmaceutical composition via the drug delivery device.

The utility model discloses a filling material filler for ear endoscopic surgery. The filling material filler comprises a filling cylinder, a filling tube, a push rod, a piston and a holding rod, the filling pipe is detachably mounted at the head end of the filling cylinder; the filling pipe has plasticity; a piston is movably mounted in the filling cylinder and connected with one end of a push rod, and the other end of the push rod extends out of the filling cylinder; the holding rod is connected to the tail end of the filling cylinder and is perpendicular to the filling cylinder; the filling tube at the head end of the filling device has plasticity and can be plasticized according to the ear canal and the in-ear condition, so that the filling tube conforms to the in-ear structure, and a mastoid cavity or an upper tympanic cavity is smoothly filled; besides, the bone cement filling cylinder is provided with an auxiliary holding rod, and according to the characteristic that bone cement has viscosity, the bone cement can be better pushed out through the auxiliary holding rod; for the injection part, an injection force control constant-speed structure is further arranged, and constant-speed injection can be kept.

The utility model discloses a tympanic cavity ventilation drainage tube which comprises a tube body, a through hole is formed in the tube body in the axial direction in a penetrating mode, two limiting parts are arranged at one end of the tube body in the radial direction in an extending mode, the two limiting parts are symmetrically arranged along the axis of the tube body, the two limiting parts can be folded towards each other, and the tube body is in a conical shape. The outer diameter of the pipe body is gradually increased in the axial direction in the direction away from the limiting part. The tympanic cavity ventilation drainage tube can reduce the possibility that the tympanic cavity ventilation drainage tube falls off from the tympanic membrane and falls into the tympanic cavity or falls out of the external auditory canal, and therefore use safety is improved.

The utility model relates to the technical field of medical equipment, in particular to a tympanic membrane ventilation pipe. The device is suitable for tympanic membrane catheterization. The tympanic membrane ventilation pipe comprises an inner claw, a pipe body and an outer claw, the pipe body is a hollow pipe, the two ends of the pipe body are fixedly connected with one end of the inner claw and one end of the outer claw respectively, and the other ends of the inner claw and the outer claw are free ends; the free end is made of memory alloy, is in a straightened state at the temperature of 0 DEG C and is in a bent state at the temperature of 20-40 DEG C. The structure is newly innovated, and an existing traditional indwelling catheter structure is changed. And the free ends of the inner claw and the outer claw are bent in a normal-temperature state through the memory alloy. The bending state of the inner claw and the outer claw achieves multi-point and internal and external bidirectional fixation, the bending state of the inner claw and the outer claw increases the supporting area and the supporting firmness, multi-point firm fixation of the eardrum in the ear is ensured, internal and external bidirectional fixation is achieved through bidirectional fixation of the inner claw and the outer claw, and the risk that the eardrum falls out of the auditory meatus and falls into the tympanic chamber is thoroughly solved.

FIELD: otolaryngology.SUBSTANCE: intrameatal incision is made in the skin of the external auditory canal along the anterior-inferior-posterior wall, forming a flap until it rests against the fibrous ring along its entire length. The fibrous ring is lifted with a microneedle and the tympanic cavity is opened along the anterior-inferior-posterior wall, and the handle of the malleus is de-epidermized. The individual dimensions of the anterior-superior wall of the bony anulus, the posterior wall of the external auditory canal, and the defect of the eardrum are determined. A disc-shaped structure consisting of two parts connected by a bridge is cut out from a pre-printed collagen membrane using a bioprinter. The first part corresponds to the shape of the development of a truncated cone, the second part corresponds to the shape of a disk, the jumper is made between the disk and the area of the narrow base of the development of the truncated cone. The size of the jumper corresponds to the possibility of free movement of the first and second parts relative to each other. The size of the truncated cone scan corresponds to the individual dimensions of the patient. In this case, the area of the wide base of the cone corresponds to the dimensions of the anterior-superior wall of the bony anulus, and the area of the narrow base corresponds to the size of the cross-section of the posterior wall of the external auditory canal. The cut structure from the collagen membrane is placed by putting the first part of the cut structure in the form of a truncated cone on the handle of the malleus in the tympanic cavity. In this case, the placement is carried out in such a way that the wide base of the truncated cone scan covers the anterior-superior wall of the bony anulus, and the narrow base covers the posterior wall of the external auditory canal. The meatotympanic flap is returned to its original position. The second part of the excised collagen membrane structure, made in the shape of a disk, is brought out through the defect of the eardrum, above the surface of the defect and laid out on the surface of the remnants of the eardrum, overlapping them. Tamponade of the external auditory canal is performed.EFFECT: method allows to increase the effectiveness of tympanoplasty by creating a durable and shock-absorbing adequate structure taking into account the anatomical features of the anterior-superior wall of the bony anulus, the posterior wall of the external auditory canal, and the defect of the eardrum.1 cl, 3 dwg, 1 ex

The utility model discloses a combined tympanic membrane breather pipe structure which comprises a ventilation mechanism of a breather pipe body, a positioning mechanism used as a detachable positioning structure on a breather pipe and a cleaning mechanism used as a detachable cleaning structure at the end of the breather pipe, the ventilation mechanism is arranged on a tympanic membrane, and the positioning mechanism is arranged on the side portion of the ventilation mechanism. The tympanic cavity ventilation tube has the advantages that the ventilation mechanism is arranged, the ventilation requirement of the tympanic cavity can be met, meanwhile, the length of the tube body part is enough to effectively discharge secretions in the tympanic cavity, the positioning mechanism is arranged to be matched with the cleaning mechanism, the whole ventilation tube is of a combined structure, and the tympanic cavity ventilation tube is convenient to use. All parts of the device can be detached, the device can be adjusted and used according to the actual situation and use requirements of a patient, the use modes are diversified, use is flexible, and the cleaning mechanism can guide a cleaning tool in the cleaning process so that the cleaning tool can smoothly extend into a vent pipe to conduct cleaning operation.

A collapsible medical device configured to be implanted in the tympanic chamber of a recipient is presented herein. More specifically, the medical device has a folded configuration having a physical size (physical footprint occupied by the device) / first form factor that enables insertion of the device through the recipient's ear canal (e.g., through an opening formed at the recipient's tympanic membrane). After the device is inserted into the tympanic chamber, the medical device is deployed from a folded configuration to an expanded configuration. In the expanded configuration, the medical device has a physical dimension (physical footprint occupied by the device) / second form factor greater than the physical dimension in the folded configuration. In some examples, the medical device is configured to be positioned against a projia of a recipient's ear adjacent to a tympanic chamber.

The invention relates to the technical field of inner ear canal medicine applying, in particular to a tympanic cavity injection device and a medicine applying method. The tympanic cavity injection device comprises a fingerboard and a dropping pipette fixedly installed on the fingerboard; a medicine clamping plate is arranged on the finger plate in a sliding mode, and a pressing plate is arranged on the medicine clamping plate in a sliding mode; a medicine clamping groove is formed in the medicine clamping plate; a medicine table communicated with the dropping pipette is fixedly mounted on the finger plate; a plurality of groups of ear expanding mechanisms are arranged on the finger plate, ear expanding plates which are arranged on the finger plate in a sliding manner are connected to the ear expanding mechanisms, and the dropping pipette is wrapped by the plurality of ear expanding plates; the ear expanding mechanism can drive the ear expanding plate to be far away from the dropping pipette when the medicine clamping plate is close to the finger plate; a medicine feeding mechanism is arranged on the fingerboard, and the medicine feeding mechanism can squeeze the injection device so that medicine liquid can pass through the liquid dropping pipe; and a regulation and control mechanism is arranged on the pressing plate, and the regulation and control mechanism can increase or decrease the pressing amount obtained by the medicine feeding mechanism.