30 results about "Drug injector" patented technology

An apparatus and method for injecting a drug into a precisely selected location in a patient's body which is a combination scanner and drug injector. The scanner is a planar array of ultrasonic transducers which transmits a focused ultrasonic beam over the entire region of interest. The injector is preferably a hypodermic syringe mounted with the array on a base. The syringe is mounted to slide between one position where the injector conduit is retracted from the patient and another position where the adjustably positioned exit end of the conduit is in the desired location for injection of the drug. As the operator holds the scanner-injector against the patient's body with injector conduit retracted, he views on a monitor screen a virtual image of the conduit which is the image of the conduit after the conduit is injected into the body. The operator electronically adjusts the length of the virtual image and adjusts the position of the scanner-injector so that the exit tip of the virtual image is located at the desired location of the image of the region on the screen. Then the conduit is inserted into the body up to a length where the exit tip of the injector is at the desired location. Then the drug is injected into the patient. In another application of the apparatus and methods of the invention, a vacuum source is attached to the injector conduit and the device is used to aspirate fluids. instead of a drug In another embodiment, a portion of the ukltrasonic beam is focused on the region of interest before and during insertion of the conduit and drug to facilitate entry of the drug into the region of interest.

Add-on module (100) for logging the value of an expelled dose from a pen-type drug injector (200), comprising a magnetic sensor system comprising first and second sensor means (745/746) as well as a mechanical dose setting and expelling mechanism comprising a magnetic clutch element (240/740) which rotates during drug expelling. The system further comprises processor means configured to determine (i) on the basis of measured values from the first sensor means, a rotational position of the clutch element, (ii) on the basis of measured values from the second sensor means, a high-speed condition in which the rotational speed of the clutch element exceeds a given threshold level, and (iii) indicate an error state if the high-speed condition is detected.

A safe medical-drug injector with a collapsible plunger combination thereof is proposed. The injector includes a hub connected with a needle, a hollow barrel for guiding the needle hub to draw back to the hollow barrel, and the collapsible plunger combination including a hollow cannula and a retractable plunger that are in sleeve joint. A least a stress adjustable notch is formed at the core of the retractable plunger or in an upper edge of the hollow cannula, and at least one raised portion is formed on an outer lateral side of the retractable plunger near the stress adjustable notch to be correspondingly embedded with at least a depression formed on an inner lateral side of the hollow cannula. The connection between the hollow cannula and the retractable plunger is released to make the retractable plunger drawn back to the hollow cannula when a following press is applied on the hollow cannula after the safe medical-drug injector completes an injection, thereby spare space of the hollow barrel for accommodating the needle hub. In this way, the manual operation of single hand and yield of process for the safe medical-drug injector can be achieved.

The invention discloses an automatic drug injector, comprising a syringe, a base, a disinfecting hemostatic mechanism, a needle handling actuator, a drug push actuator and a control mechanism. The disinfecting hemostatic mechanism, the needle handling actuator and the control mechanism are mounted on the base. The syringe and the drug push actuator are fixed to the needle handling actuator. The drug push actuator faces the tail of the syringe. The disinfecting hemostatic mechanism is located in front of a needle of the syringe and is in transmission with the needle handling actuator. The control mechanism controls the disinfecting hemostatic mechanism, the needle handling actuator and the drug push actuator to act in order. The automatic drug injector performs an automatic injection process of wiping, disinfecting, puncturing, drug pushing, needle withdrawing and hemostasis, needs no hand holding or help from nursing staff, and enables comprehensive self-care ability of a patient to be improved; the disinfecting hemostatic mechanism and the needle handling actuator are in transmission, wiping and disinfecting are performed before puncturing, hemostasis is performed after needle withdrawing, and the injection process is automated.

The invention relates to a non-invasive insert treating system, which comprises a main body arranged with high-pressure gas provider and drug feeder, a drug injector and a chamber through to the drug injector. Wherein, the chamber near the injector has a nozzle; the drug injector is arranged with high-speed injection tube whose front end has guide tube; the nozzle and the high-speed injection tube have drug disperser between them. The invention can fully mix drug and gas, and disperse the high-speed drug gas into atom; and the back of injection tube ha a guide tube to limit the disperse of gas, therefore, the gas has high speed at the injection surface; and the drug can be uniformly distributed, to control the drug radiation area and improve the drug effect.

The invention discloses a drug applicator, comprising a drug injector and a drug applicator; the inner part of the drug injector is provided with a hollow cavity, and one side of the bottom part of the drug injector is provided with a handle; one side of the hollow cavity is provided with a drug outlet, and a piston is glidingly connected to the hollow cavity inside, and the bottom part of the piston is connected to one side of the drug injector through a spring; one side of the handle is provided with a moveable connecting piece, and the moveable connecting piece is connected with the piston and the handle through a rotary shaft; the top part of the drug injector is provided with a drug inlet, an infusion tube is inserted to the drug outlet, and the other end of the infusion tube is connected with the drug applicator; the drug applicator includes a circular base and a drug feeding pipe, and the surface of the drug applicator is added with a nano-silver antibiosis coating; the infusion tube enters the drug feeding pipe through the circular base. The drug applicator is simple in structure, new in design, convenient to operate, powerful in functions, and very good in popularizing value.

The invention discloses a drug injector for muscle recovery. The drug injector comprises an injector pipe, a needle head is arranged at one end of the injector pipe, the end, away from the needle head, of the injection pipe is sleeved with a third circular ring, a piston pipe is arranged in the injection pipe, a rubber piston sleeve is arranged at the end, close to the needle head, of the piston pipe, the end, away from the rubber piston sleeve, of the piston pipe is sleeved with the third circular pipe, and a vent channel is formed in the side wall of the piston pipe. The drug injector is simple in structure, gas is compressed so that the rubber piston sleeve can expand and be tightly attached to the inner wall of the injection pipe, liquid in the injection pipe is prevented from leaking from a gap between the rubber piston sleeve and the injection pipe to avoid waste, the needle head can be taken down after injection is completed and put into a placing groove to be prevented from being damaged, a stop rod is inserted into the placing groove and is fixed by attractive force between two annular magnets, and the needle head is fixed under the action of spring force and prevented from waggling and then being damaged.

The invention discloses a multi-angle tumor drug injector, and belongs to the technical field of medical supplies. The multi-angle tumor drug injector comprises a push rod, wherein the left side of the push rod is connected with an air tube in a plugging manner; a dial is arranged on the outer wall of the air tube; a positioning slot is formed in the outer wall of the dial; the left side wall of the air tube is connected with a connection hole in the plugging manner; the right end of the air tube is movably connected with a drug tube; a positioning pin connected with the positioning slot is arranged at the top of the drug tube. The multi-angle tumor drug injector enables medical staff to adjust an angle according to the dial under the action of the positioning pin and the dial; after the angle is adjusted, the positioning pin is used for fixing the dial and the drug tube to achieve an effect of fixing the angle, so that the operation of the medical staff is facilitated, and pain of a patient is relieved; the drug tube is connected with the air tube through a shaft sleeve, so that when being subjected to angle adjustment, the drug tube can rotate more smoothly by the use of a connection pin shaft, and no mechanical vibration is caused.

The invention relates to a piezoelectric sheet driven drug injector, and belongs to the field of medical instruments. The top of a main body is provided with a syringe with a secondary piston and a cylinder chamber, and a main piston divides the cylinder chamber into left and right cylinder chambers; a main piston push rod protrudes through the left wall of the cylinder chamber and abuts against asecondary piston push rod; the bottom of the man body is provided with an upper air inlet hole, a boss and a plurality of round table groups; the top of a box body is provided with a lower air inlethole, a hole chamber, a gas storage chamber communicated with a lower outlet chamber and body chamber groups and body chambers respectively equal to the number of the round table groups and the numberof round tables included therein; the main body is mounted on the box body, and the boss is placed in the hole chamber and makes upper and lower outlet chambers be communicated with the gas storage chamber; the round tables press drivers in the body chambers through sealing rings to form upper and lower compression chambers, the upper and lower compression chambers in the same body chamber groupsare respectively connected in parallel to form upper and lower compression chamber groups, and each upper compression chamber group and each lower compression chamber group are respectively connectedin series to form upper and lower compression units; the left cylinder chamber is connected to a reversing valve through a gas transmission pipe, and the right cylinder chamber is connected to the gas storage chamber through the gas transmission pipe and the reversing valve.

The invention discloses a multi-drug injector. The multi-drug injector comprises a first needle tube, a second needle tube and a rotating switch. At least three pushing-injecting devices are arrangedin the first needle tube. The rotating switch is arranged between the first needle tube and the second needle tube. The rotating switch is provided with a channel corresponding to one of the pushing-injecting devices, wherein the rotating switch is used for controlling one of the pushing-injecting devices to be opened. The respective pushing-injecting devices can complete suction and injection ofdifferent drugs; normal saline is stored in one of the pushing-injecting devices, tube washing is carried out through the normal saline in two times of drug injection to avoid a drug reaction; by virtue of the arrangement of the rotating switch, only one pushing-injecting device can be started each time for operation, so that influence to other paths caused by one path of drug injection is avoided; and the multi-drug injector is simple in structure and is capable of carrying out muscle or subcutaneous injection with drugs of two or more kinds at the same time, the puncture frequency is reduced, and the pain and psychological stress of a patient are relieved.

The invention discloses a continuous tubular type drug injector which comprises a longitudinal water feeding pipeline, wherein a circular pipeline, which has an integrated structure with the longitudinal water feeding pipeline, is arranged at one end of the longitudinal water feeding pipeline; a horizontal water feeding pipeline, which has the integrated structure with the circular pipeline, is arranged at one end of the circular pipeline; a first hollow structure is arranged in the longitudinal water feeding pipeline and the circular pipeline; a second hollow structure is arranged in the horizontal water feeding pipeline; and an inclined plate with a downward slope is fixed at the top in the longitudinal water feeding pipeline. The continuous tubular type drug injector can utilize the kinetic energy caused by the flowing of the to-be-injected liquid to drive a drug feeding mechanism to synchronously feed the drug at the flowing speed of the liquid, so that the feeding mixing degree is uniform and the continuous tubular type drug injector has the characteristic of feeding volume control. Besides, the device is equipped with a friction force offset mechanism and a buffering type force control mechanism and is capable of reducing the friction force to-be-overcome by the part in the rotating process, so that the precision can be increased.

The invention relates to a portable drug injector, and belongs to the field of medical instruments. The top of a main body is provided with a syringe, the main body is provided with a cylinder chamber, a main piston divides the cylinder chamber into left and right chambers, a push rod of the main piston stretches out from the left wall of the cylinder chamber and abuts against a push rod of an auxiliary piston; the main body is arranged on a box body, left and right bosses of the main body are placed in left and right sinking cavities of the box body respectively, flow inlet and outlet holes in the main body are communicated with flow inlet and outlet holes in the box body respectively; body tables of the main body press drivers in body cavities of the box body through sealing rings to form upper and lower compression cavities, the diameters of the upper and lower compression cavities are gradually decreased from left to right, and the upper and lower compression cavities are firstly connected in parallel and then connected in series; each energy converter is composed of two piezoelectric vibrators and a gasket between the corresponding piezoelectric vibrators, and each piezoelectric vibrator is formed by bonding a base plate and a piezoelectric plate; when the portable drug injector is in use, the deformation directions of the two piezoelectric vibrators of the same energy converter are same, and the deformation directions of piezoelectric vibrators in every two adjacent drivers on the left and right are opposite; left and right cavities are connected with a reversing valve through air conveying pipes, and the reversing valve is connected with an air storage chamber through an air conveying pipe.

The invention relates to a powdered drug injector, which comprises a deformable housing, the upper end of the housing is provided with a detachable end cover, and a spray tube is fixed on the end cover and communicates with the inner cavity of the housing; the end cover is provided with an injection port, the injection port is provided with a valve core, the valve core is connected with a magneticblock, and the valve core is slidably installed in a track together with the magnetic block; a sliding cavity is arranged obliquely above the track, and a magnetic adsorption sliding block is arranged in the sliding cavity. By setting the deformable housing, the powdered drug injector provided by the invention can quickly and efficiently spray the powdered drug by compressing and spraying the powdered drug through air.

The present invention relates to a portable automatic drug injector having convenient portability and handling and enabling an accurate amount of a drug to be safely injected. The present invention provides a portable automatic drug injector capable of: easily performing an injection treatment so as to inject a drug without a separate switch operation, by implementing a novel automatic drug injection method enabling the drug to be automatically injected into the skin by using a guide acting as a switch touching and pushing the skin when the drug is injected, particularly, ensuring the accuracy and safety of a treatment by accurately adjusting an injection amount of the drug; providing a customized treatment according to the conditions of various patients, convenient portability, easy handling and easy and accurate treatment regardless of a user's proficiency by having various types of manipulation means, which enable an injection amount of the drug and an injection depth to be adjusted, and a rechargeable battery embedded therein.

The invention relates to a novel tumor puncture injection treatment device, which is composed of a puncture part, an injection part and a carrier part. A medicine injector is connected with that air pressure chamber through the air duct, the main duct is connected with the air pressure chamber, two or more branch ducts connected with the medicine injector are separate, and air valves are arrangedon the main duct and the branch ducts. There are three universal wheels. A barometer is installed on the air pressure cabin, and the inflatable bag is connected with the air pressure cabin through aninflatable pipe, an end of the inflatable pipe close to the inflatable bag is provided with a pressure reducing valve, and an injection part is installed on a tray of a carrier part. The puncture needle is connected with the front convex head of the drug injector through a catheter, and an injection switch is arranged at the middle part of the catheter. A medicate injector is in sealed contact with an inn wall of that medicated injector, a convex head is arranged on a front wall of the catheter, and a rear end wall is connected with a bronchus. A long hoop is arranged at that junction of the branch air duct and the drug injector, and at the junction of the catheter and the convex head of the drug injector. The invention can simultaneously inject two or more medicines to improve work efficiency.

The present invention relates to a drug injection cartridge and a drug injector comprising same, and has an anti-pushing part (100) formed between a needle part (10) and a cartridge (20), thereby preventing a rubber film from being expanded by pressure applied to the cartridge (20), such that a drug does not leak, and the accuracy of drug injection can be improved.

The invention discloses a negative pressure anal drainage drug injector and a manufacturing method thereof. The drug injector comprises at least one pipeline product for dredging liquid circulation, wherein a small-diameter fluid drainage opening is formed in the pipeline product; a plurality of seal caps are sequentially arranged on the pipeline product along the centerline of the pipeline; thin layers which are convenient for branched drainage pipelines to be inserted are arranged below the seal caps; an inclined puncture tip is arranged on the port of the pipeline product; a multi-way valve is arranged at one end of the pipeline product; and a drug injector and a negative pressure bottle are additionally arranged on the multi-way valve; and the invention also provides a manufacturing method, wherein the manufacturing method comprises steps of mixing, reacting, extrusion-molding, injection-molding, disinfecting, thinning, covering and the like. The drug injector disclosed by the invention is conducive to succession of the branch drainage pipelines as well as access of the drug injector in a drainage process, and is convenient to fix the branch drainage pipelines; and the drug injector is smooth and soft in pipeline, low in irritation to wounds, low in cost and good in drainage effect.