34 results about "Intratympanic Injections" patented technology

The invention relates to a dexamethasone sodium phosphate injection and a preparation method thereof. The injection is prepared from dexamethasone sodium phosphate, a stabilizer, an antioxidant, a metal ion chelant, a pH regulator, a viscosity regulator, a solubilizer, an osmotic pressure regulator and water for injection by dissolving and high-temperature sterilization, and has certain viscosity.The dexamethasone sodium phosphate injection is applied to intratympanic injection, and has the effects of enhancing intratympanic medicine absorption and improving sudden deafness.

The invention discloses a medical device for tympanum puncture and intratympanic injection. The medical device comprises a first syringe needle, a second syringe needle, a first piston, a second piston and an switching device. The switching device comprises a connector and an switching pipe. The connector comprises a base plate, wherein the base plate is provided with a first through hole and a second through hole. The switching pipe comprises a base pipe and a seal plate. A first plugging portion and a second plugging portion are arranged at one side end of the seal plate, the other side endof the seal plate is provided with an inner pipe located in a pipe cavity of the base pipe. The first plugging portion is provided with a first switching hole communicated with a first working cavity,the second plugging portion is provided with a second switching hole communicated with a second working cavity. In the rotating process of the seal plate with the base pipe, the second plugging portion plugs the second through hole when the first switching hole rotates to be communicated with the first through hole, and the first plugging portion plugs the first through hole when the second switching hole rotates to be communicated with the second through hole. The medical device can complete switching of two function states of hydrops suction and medicine injection only by turning the base pipe to reach a preset angle.

The invention provides a tympanum puncture and intratympanic injection medical device, and relates to the field of ear-nose-throat medical equipment, and mainly aims at solving the technical problems that in the prior art, medicine reflux is caused due to the fact that two holes are formed in secondary medicine injection through needle insertion after puncture and aspiration, and puncture pain of a patient is increased. According to the technical scheme, the tympanum puncture and intratympanic injection medical device comprises a first puncture device, a second puncture device, a suction device and an injection device; the first puncture device comprises a puncture needle and a first connector; the second puncture device comprises an injection needle and a second connector; the suction device comprises a negative pressure mechanism and a third connector; the injection device comprises an injector and a fourth connector; when the medical device is in a first using state, the third connector of the suction device is connected with the second connector of the second puncture device; when the medical device is in a second using state, the fourth connector of the injection device is connected with the second connector of the second puncture device.

The invention relates to a transcutaneous intratympanic injection trocar. The trocar comprises an indwelling hose, a tailstock, a sealing cover and a puncture guide needle core; one end of the indwelling hose is connected with the tailstock, and the sealing cover is arranged on the tailstock; and the puncture needle core is detachably inserted into the indwelling hose. The trocar has the advantages that the indwelling hose of the trocar is indwelled under the skin of an external auditory canal through a minimally invasive surgery and can be used for repeated tympanic administration, so that injury caused by repeated tympanic membrane puncture is avoided. Meanwhile, the trocar is suitable for child patients who do not cooperate with repeated puncture and patients who are inconvenient to go to and go back to hospitals for treatment. The trocar is indwelled through a disposable operation, subsequent tympanic administration treatment can be completed at home, wounds caused by repeated puncture are reduced, time and traffic cost are saved, medical resources are saved, and convenience and economy are achieved.

The invention provides tympanum puncture and intratympanic injection medical equipment, relates to the field of ear-nose-throat medical equipment, and mainly aims at solving the technical problems that in the prior art, medicine reflux is caused due to the fact that two holes are formed in secondary medicine injection through needle insertion after puncture and aspiration, and puncture pain of a patient is increased. According to the technical scheme, the tympanum puncture and intratympanic injection medical equipment comprises a support frame, a fixing device, a connecting block and a tympanum puncture and intratympanic injection medical device, wherein the tympanum puncture and intratympanic injection medical device comprises a first puncture device, a second puncture device, a suction device and an injection device; the first puncture device comprises a puncture needle and a first connector; the second puncture device comprises an injection needle and a second connector; the suction device comprises a negative pressure mechanism and a third connector; the injection device comprises an injector and a fourth connector; the tympanum puncture and intratympanic injection medical device has two using states including the suction state and the injection state.

The invention discloses an auripuncture, tympanic cavity internal injection and myringotomy fixing and pushing system, and relates to the field of medical instruments, and aims at solving the problem existing in the prior art that when doctors treat middle ear and related diseases of patients, the hand-held medical tool is not stable enough, and the treatment effect is low. The technical scheme is that the auripuncture, tympanic cavity internal injection and myringotomy fixing and pushing system comprises a support member, a wearing part, a clamping part and a pushing mechanism. The wearing part is connected with the support member, and is used for a patient to wear, and maintains the stable position relationship between the auricle of the patient and the support member; the clamping part is used for clamping an external medical tool; and the pushing mechanism is arranged on the support member, and is connected with the clamping part, and is used for driving the clamping part to move linearly relative to the support member. The fixing and pushing system is suitable for treatment modes such as auripuncture, tympanic cavity internal injection and myringotomy.

The invention relates to tympanocentesis and intratympanic injection medical equipment, relates to the field of ear-nose-throat medical equipment and aims to solve the technical problem that puncture pain of a patient is aggravated due to backflow of a drug because double holes are formed through second needle insertion and drug injection after puncture and aspiration in the prior art. The main technical scheme is that the tympanocentesis and intratympanic injection medical equipment comprises a support frame, a fixing device, a connecting block and a tympanocentesis and intratympanic injection medical device, wherein the tympanocentesis and intratympanic injection medical device comprises a first puncture device, a second puncture device, a suction device and an injection device; the first puncture device comprises a puncture needle and a first connector; the second puncture device comprises an injection needle and a second connector; the suction device comprises a negative pressure mechanism and a third connector; the injection device comprises a syringe and a fourth connector. The tympanocentesis and intratympanic injection medical device has two use states including a suction state and an injection state.

The invention relates to a tympanocentesis and intratympanic injection medical device, relates to the field of ear-nose-throat medical equipment and aims to solve the technical problem that puncture pain of a patient is aggravated due to backflow of a drug because double holes are formed through second needle insertion and drug injection after puncture and aspiration in the prior art. The main technical scheme is that the tympanocentesis and intratympanic injection medical device comprises a first puncture device, a second puncture device, a suction device and an injection device, wherein the first puncture device comprises a puncture needle and a first connector; the second puncture device comprises an injection needle and a second connector; the suction device comprises a negative pressure mechanism and a third connector; the injection device comprises a syringe and a fourth connector. When the medical device is in a first use state, the third connector of the suction device is connected with the second connector of the second puncture device; when the medical device is in a second use state, the fourth connector of the injection device is connected with the second connector of the second puncture device.

The invention discloses a conversion tube of a medical injection device for preventing maloperation. The conversion tube comprises a base tube and a sealing plate fixedly arranged at one end of the base tube; one side end of the sealing plate is provided with a first blocking part and a second blocking part, and the other side end of the sealing plate is provided with an inner pipe positioned in apipe cavity of the base pipe; the inner wall of the end, away from the sealing plate, of the inner pipe is provided with a longitudinal guide chute extending in the central line direction of the inner pipe. An elastic piece is arranged on the pipe wall of the inner pipe and comprises a protruding platform protruding toward the outer side of the inner pipe, and a positioning through hole running through the pipe wall of the inner pipe is also formed in the longitudinal guide chute. The conversion tube has the advantages that the conversion tube is applicable to the medical device which can prevent maloperation and is used for tympanic membrane puncture and intratympanic injections, and the functions of conversion between two channels, preventing maloperation and the like through cooperation with an external component are achieved.

The invention relates to medical equipment for auripuncture and intratympanic injection applied to the department of otorhinolaryngology, relates to the field of medical equipment and aims to solve the technical problem that the treatment effect on an affected part is affected by incomplete hydrops discharge due to communication of a suction channel and an injection channel of the conventional medical device in the needle position. The main technical scheme is that the medical equipment for auripuncture and intratympanic injection comprises a puncture outer tube, an injection inner tube, a plug needle, an injection device and a suction device, wherein a conical first inner wall is formed at the front end of the puncture outer tube, and a first connector is arranged at the tail end of the puncture outer tube; a conical head is arranged at the front end of the injection inner tube, the injection inner tube is inserted into the puncture outer tube, and a suction channel is formed betweenthe injection inner tube and the inner wall of the puncture outer tube; the injection inner tube can move relative to the first connector; the plug needle is in a shape adaptive to the inner wall of the injection inner tube, and can be inserted and extracted relative to the injection inner tube; the injection device is detachably connected with the injection inner tube; the suction device is connected with a port in the puncture outer tube.

The invention discloses an anti-misoperation tympanic membrane puncture and intratympanic injection medical device. The tympanic membrane puncture and tympanic cavity injection medical device comprises a first needle, a second needle, a first piston and a channel converter. The channel converter includes a connector and a conversion tube. The base pipe is provided with four longitudinal guide chutes extending along the centerline of the base pipe; the inner tube is provided with four elastic members; each elastic member is provided with a boss protruding toward the lumen of the inner tube; thefirst piston includes a first pull handle provided with four longitudinal guide limit plates, and four longitudinal guide positioning plates protruding along the radial direction of the base pipe arearranged on the inner wall of the first pull handle; each longitudinal guide positioning plate is provided with an unlocking notch adjacent to the first sealing plug, and each elastic member can enter a corresponding unlocking notch; and the second piston includes a second pull handle having an annular stop projecting from an outer wall of the second pull handle and adapted to an inner lumen. Theanti-misoperation tympanic membrane puncture and intratympanic injection medical device can limit the action sequence of the first piston and the second piston in use, and effectively prevents misoperation.

The invention discloses a misoperation-preventing medical device for internal extraction and external injection type tympanum puncture and intratympanic injection. The misoperation-preventing medicaldevice comprises a first piston, a second piston and a channel switcher. The channel switcher comprises a connector and a switching tube. A sealing plate is arranged in an inner tube located in a basetube cavity. The inner tube is provided with four longitudinal guide sliding grooves extending in the central line direction of the inner tube; the tube wall of the inner tube is provided with an elastic part and a positioning through hole, the first piston comprises a first seal plug and a first pull handle provided with an inwards protruding annular blocking table, the second piston comprises asecond seal plug and a second pull handle, and the outer wall of the second pull handle is provided with positioning convex plates matched with the longitudinal guide sliding grooves. The positioningconvex plates are provided with unlocking gaps and are also provided with containing gaps and elastic clamping hooks, the elastic clamping hooks produce elastic deformation under the effect of an external force and extend into the containing gaps. The misoperation-preventing medical device effectively prevents misoperation.

The invention relates to an auripuncture and intratympanic injection medical device and relates to the field of ear-nose-throat medical facility. The auripuncture and intratympanic injection medical device is mainly used for solving the technical problem that puncture pains of a patient are increased due to medicine regurgitation caused by two holes formed by second insertion of a needle for medicine injection after puncture and aspiration in the prior art. The technical scheme mainly adopted in the invention is as follows: the auripuncture and intratympanic injection medical device comprises a first puncture device, a second puncture device, a suction device and an injection device, wherein the first puncture device comprises a puncture needle and a first connector; the second puncture device comprises an injection needle and a second connector; the suction device comprises a negative pressure mechanism and a third connector; the injection device comprises an injector and a fourth connector. When the medical device is in a first use state, the third connector of the suction device is connected with the second connector of the second puncture device; when the medical device is in a second use state, the fourth connector of the injection device is connected with the second connector of the second puncture device.

The invention provides tympanum puncture and intratympanic injection medical equipment, relates to the field of ear-nose-throat medical equipment, and mainly aims at solving the technical problems that in the prior art, medicine reflux is caused due to the fact that two holes are formed in secondary medicine injection through needle insertion after puncture and aspiration, and puncture pain of a patient is increased. According to the technical scheme, the tympanum puncture and intratympanic injection medical equipment comprises a support frame, a fixing device, a connecting block and a tympanum puncture and intratympanic injection medical device, wherein the tympanum puncture and intratympanic injection medical device comprises a first puncture device, a second puncture device, a suction device and an injection device; the first puncture device comprises a puncture needle and a first connector; the second puncture device comprises an injection needle and a second connector; the suction device comprises a negative pressure mechanism and a third connector; the injection device comprises an injector and a fourth connector; the tympanum puncture and intratympanic injection medical device has two using states including the suction state and the injection state.