23 results about "Drug injection" patented technology

This invention relates to the field of infusion rate control technology, specifically to an adaptive adjustment method for intraoperative anesthetic drug infusion rate based on reinforcement learning. The method includes the following steps: monitoring tubing pressure waveforms to extract hysteresis response features; constructing a multidimensional fluid environment state vector by splicing anesthesia depth errors; inputting the vector into a neural network to map and output a composite command containing a base flow rate and resistance torque; establishing a corrected drive signal by superimposing acceleration pulses based on tubing stiffness and compensating for flow leakage; and completing closed-loop verification based on pressure change rate deviation. In this invention, by analyzing the establishment and attenuation features of the pressure waveform to reconstruct the hysteresis response state of the physical environment, tubing compliance is incorporated into the network input space and mapped to generate a composite command containing a base flow rate and resistance torque. This eliminates drug delivery delays caused by tubing expansion and energy absorption, ensuring that motor actions are instantly converted into effective drug injection, thereby improving the real-time response speed and drug delivery control accuracy of anesthesia depth regulation.

The utility model discloses a single medicine injection liquid's paper support device, both sides of the support mechanism all are provided with first folding section, and the first folding section is 90 degrees bending to the inside of support mechanism, the below of first folding section is provided with second folding section, the second folding section is 90 degrees bending to the inside of support mechanism, the second folding section is located the side away from first folding section and is provided with third folding section, the third folding section is 120 degrees bending to the outside of support mechanism, the top of third folding section is provided with bonding section, the outer surface of bonding section and first folding section are fixed with glue bonding, first folding section, second folding section, third folding section and bonding section are all integrated, and the support mechanism for placing medicine injection liquid bottle takes three layers of corrugated paper as raw material, compared with the traditional material such as plastic bracket, foam, the packaging material cost is reduced greatly, and the corrugated paper is easy to obtain, and the price is low, is favorable to large -scale popularization and application.

This invention provides a chemotherapy catheter for spinal tuberculosis, comprising a catheter with a drug channel, a flexible tube at the front end of the catheter with multiple through holes communicating with the drug channel, and a built-in one-way structure. The one-way structure includes an elastic rubber sheet at one end fixed to the inner wall of the drug channel; multiple elastic rubber sheets are stacked together in a conical shape; and a connector is connected to the rear end of the catheter, with a drug injection end for injecting medication. This invention, by inserting the catheter into the patient's body, injects medication through the drug injection end, which then passes through the drug channel and the one-way structure to prevent backflow, and finally flows out through the multiple through holes, thereby widely dispersing the medication and improving drug utilization.

This invention provides a thrombolytic catheter system for cerebral venous sinus, relating to the field of medical device technology. It includes a microcatheter and a blocking guidewire. The microcatheter has a drug injection structure and side holes. The side holes have several through-holes distributed circumferentially and axially. The blocking guidewire includes a guidewire body and a blocking portion connected to the guidewire body. By using the microcatheter and blocking guidewire, during use, the blocking guidewire is inserted into the microcatheter, and the blocking portion at the end of the guidewire seals the end of the catheter. Thus, during thrombolytic drug injection, the drug only flows out from the through-holes of the catheter. Multiple through-holes are provided circumferentially and axially. This closed design, where thrombolytic drug flows only from the side holes, increases the contact area between the thrombolytic drug and the thrombus, thereby increasing the probability of vascular patency and reducing catheterization time. This solves problems related to the difficulty of removing cerebral venous sinus thrombi, venous reflux during catheter-based thrombolysis, and intracranial infection.

This invention relates to the field of auto-injector technology and discloses a fully automatic intelligent high-pressure needleless injector, comprising a main body, a needleless injection head detachably mounted on the injection end of the main body, a gripping drive assembly disposed in the middle of the inner cavity of the main body, and an impact assembly connected to the gripping drive assembly disposed in the inner cavity of the main body at the end away from the needleless injection head, and a charging assembly disposed on the inner cavity and outer end of the main body on the same side as the impact assembly; the invention, by providing a gripping drive assembly and an impact assembly, facilitates users to set the required drug injection volume and injection pressure parameters via a mobile APP, and transmits the information to the injector's control module via Bluetooth communication. The control module analyzes the received injection volume and injection pressure parameters and realizes an intelligent integrated control process for automatic drug replenishment and automatic injection of the needleless injector, improving the control capability of drug injection dosage and force.

The present invention provides a catheter connector for connecting a catheter to a drug injection device, which allows for easy removal and reconnection of the catheter from the connector. [Solution] The catheter connector comprises a tightening ring 1 made of elastic resin for fixing a catheter inserted into the lumen, a connector body 2 that fixes one end of the tightening ring and serves as a connection point to an infusion device, and a ring operating body 5 that grips the other end of the tightening ring. The proximal side of the connector body or the distal side of the ring operating body is provided with a circumferential passage 421 and an axial passage 422 on one of the opposing surfaces that intersect when one is inserted into the other, and a projection 511 that engages with the passage on the other. This allows the connector body and the ring operating body to slide relative to each other in the circumferential and axial directions, and to be fixed in the position after sliding. The connector body and the ring operating body may also be rotatable and fixed relative to each other by a ratchet mechanism.

This utility model discloses an ultra-thin, expandable anorectal drug delivery device, comprising: a catheter for inserting into the anus and rectum, with a drug injection port at the front end of the catheter and a Luer lock connector fixedly connected to the rear end of the catheter; wherein, the catheter includes an inner tube layer, a middle tube layer, and an outer tube layer, the inner tube layer being connected to the drug injection port, the middle tube layer being wrapped around the outer side of the inner tube layer, an expansion member for increasing the tube diameter being provided between the inner wall of the middle tube layer and the outer wall of the inner tube layer, and a driving member being installed at the rear end of the catheter, the expansion member being controlled by the driving member, thereby changing the tube diameter through the use of the expansion member to achieve a better drug delivery effect, reduce secondary damage to the intestinal mucosa, improve patient treatment comfort, and ensure the safety of the entire drug delivery process.

This utility model discloses an adjustable tubular hematoma removal device, relating to the field of medical device technology. It includes a main tube, with a suction component extending through one end and an adjustment component at the other end. An adjustment knob is located on one side of the adjustment component, and a suction tube is located at one end of the adjustment component. A handle is located on the outer side of one end of the suction tube, and a branch tube is located at the top of the middle section of the suction tube, with a sealing cap at the top of the branch tube. An injection connector is located at the other end of the suction tube. This utility model has a scientifically novel structure, enabling safe hematoma removal through the organic cooperation of the main tube, suction component, and adjustment component. The guide section and annular sealing edge on the main tube form a reliable seal with the suction needle, while the design of the branch tube and sealing cap facilitates drug injection, improving the safety and reliability of hematoma removal.

The embodiment of the present application relates to a kind of medicine injection equipment, including shell, driving device and injection needle device, the shell is used to fix the driving device and injection needle device, wherein, driving device includes swing module, drive module, stop module and propulsion module;Injection needle device includes soft needle slider, force storage element, hard needle slider, energy storage element, slide chute, stop rod, push element, limit pin and trigger element;The present equipment integrates the drive module of ratchet screw cooperation, automatic injection needle module, reduces manufacturing cost and energy consumption, reduces weight, is convenient to use and carry;Output is more stable, direct, reliable, is conducive to the accurate control of the injection volume of patient's medicine liquid;Injection needle device is injected to subcutaneous, hard needle is automatically rebounded, soft needle is left in subcutaneous, reduces the number of needle puncture, reduces the risk of infection, with good antibacterial property, sealing property.

The utility model discloses a kind of mortar water sediment recovery devices, it is related to technical field of recovery device.Drug injection forms significant concentration gradient in device interior, so that the concentration of drug in different positions in device interior is different, thereby affecting the processing speed of device to mortar water.The utility model includes device main body and feeding mechanism.The utility model is provided with feeding mechanism, first stirring rod, driving motor and device main body, using the work of driving motor, first stirring rod can be driven to rotate, and mortar water in the interior of device main body can be driven to mix, while first stirring rod rotates, driving bevel gear can be driven to rotate, then by the transmission of driven bevel gear, first bevel gear and second bevel gear, second stirring rod can be driven to rotate, the drug discharged at medicine disc is mixed with mortar water, thereby improve the mixing speed of drug and mortar water, accelerate the working efficiency of device.

The present disclosure relates to a medical skin treatment device, comprising a control unit for controlling the operation of the skin treatment device, a power supply unit for supplying power to the medical skin treatment device, and a main body including a drug storage unit for storing a drug to be injected into the patient's skin, a transport unit for moving the main body, a handpiece that receives power from the power supply unit of the main body, is controlled by the control unit, and injects the drug into the patient's skin to improve the skin, and a ring-shaped transducer that vibrates at a predetermined treatment frequency to deliver vibrational energy to the patient's skin.

The patent discloses a kind of vaginal injection devices, it is related to medical injection field, device includes base and expansion board, expansion board can slide along the sliding slot on base, reach the function of vaginal speculum by the expansion of expansion board, make expansion board adhere to vaginal mucosa;Base has handle for fixing entire injection device;Expansion board has several needle holes, injection needle can be worn from needle hole and carry out drug injection;Needle and medicine bin are connected, medicine bin and needle are closed space, fill the medicine needed to be injected in;The length of needle that entire medicine bin is adjusted to be worn needle hole is adjusted by the movement of gear and gear sliding slot, the depth of drug injection into vaginal mucosa;The new type of patent does not need to use vaginal speculum to assist injection in vagina during use process, can accurately control the depth of drug injection, complete the injection of entire vaginal mucosa once, shorten operation time, improve injection efficiency, reduce drug waste, improve curative effect, reduce patient pain.

A drug injection device includes: a body configured to receive a drug cartridge; a needle sleeve axially movable relative to the body; a needle holder holding a needle; and a displacement element coupled to the needle holder and disengagedly coupled to the needle sleeve; wherein, when the needle sleeve is axially displaced in a proximal direction by a predetermined distance, the needle hub and the needle are axially displaced in the proximal direction.

This utility model discloses a rapid mouse grasping and restraining device, relating to the field of medical experimental technology. It includes an operation panel with four limiting blocks mounted on its upper end. A grasping and restraining structure is embedded between the four limiting blocks. The grasping and restraining structure includes a handle, a mounting rod, a fixing plate, four hinges, and two grasping and restraining covers. The two grasping and restraining covers enable the grasping and restraining of mice, eliminating the need for manual handling and preventing bites, thus reducing the risk of injury to workers. A spring-driven reset mechanism ensures the automatic closing of the grasping and restraining covers during mouse grasping, guaranteeing a high success rate. The operation panel and limiting blocks work together to lock the handle in place, positioning the two grasping and restraining covers at the top for easy mouse restraint and drug injection.

This invention provides a rat cerebrospinal fluid (CSF) metering and collection device with injection and pressure measurement functions. The device includes a glass tube and a catheter. A pressure probe is installed inside the glass tube. A three-way valve is installed at one end of the glass tube, and the other two ends of the three-way valve are connected to tubing. This device facilitates drug injection, facilitates CSF collection, measures CSF pressure, observes the relationship between CSF flow rate, flow velocity, and intracranial pressure, and simulates and studies the effects of ventricular drainage surgery. The rat CSF metering and collection device with injection and pressure measurement functions provided by this invention has the advantages of being easy to use, capable of collecting CSF, and accurately calculating the amount of CSF secreted.

An injection assembly (10) injecting medicament to a patient. The assembly (10) is configured to be carried within a wearable auto-injector (20). The injection assembly (10) includes a reservoir (100) configured as a shallow, open-topped container defining a width (X) and depth (Y), the width (X) being substantially greater than the depth (Y), and an internal volume (102) for containing the medicament. The reservoir (100) has a peripheral rim (106) defining an opening (104) into the internal volume (102). A deformable diaphragm (110) is fixed to the rim (106) to be arranged across and seal the opening (104). The injection assembly (10) also includes a pressurised gas source (120) operable to release pressurised gas, and at least one conduit (130) fluidly coupling the pressurised gas source (120) and the diaphragm (110). The injection assembly (10) further includes a hollow needle (140) fluidly coupled with the internal volume (102), the needle defining a tip (141) for injecting the medicament into the patient. The injection assembly (10) further includes a controller (150) configured to operate the pressurised gas source (120) to release a predetermined volume of pressurised gas through the at least one conduit (130) and against the diaphragm (110) to cause the diaphragm (110) to stretch into the reservoir (100) and expel a predetermined volume of the medicament through the needle (140).

This invention discloses a puncture positioning device for oncology, relating to the field of medical device technology. It includes a puncture needle assembly, a self-sealing assembly, a drug injection mechanism, and a disposable locator. The puncture needle assembly comprises a puncture needle tube and a puncture needle core. The puncture needle tube has a hollow structure, and the puncture needle core slidably passes through the inner wall of the puncture needle tube. The front end of the puncture needle tube has a puncture tip for easy penetration of human tissue. The self-sealing assembly includes an elastic sealing ring fixedly connected to the surface of the puncture needle tube. This invention, by setting an elastic sealing ring and a sliding sleeve on the surface of the puncture needle tube, allows the sliding sleeve to slide along the axial direction of the puncture needle tube. When the puncture needle penetrates the target tissue, it pushes the sliding sleeve forward, and a movable push rod compresses the elastic sealing ring, causing it to expand radially. This allows the edge of the elastic sealing ring to make close contact with the tissue wall, achieving closure of the needle tract and effectively reducing the risk of pneumothorax and bleeding.

The utility model relates to a kind of medicine delivery cutting balloon dilatation catheter, it includes inner tube, intermediate tube, outer tube, balloon and cutting tool, intermediate tube is sleeved on inner tube, intermediate tube distal end is fixedly closed connection with inner tube;Outer tube is sleeved on intermediate tube;Balloon distal end is fixedly connected with inner tube distal end, proximal end is fixedly connected with outer tube distal end, balloon inside is connected with the balloon filling passage between outer tube and intermediate tube;Cutting tool is fixedly set on the outer surface of balloon, and extend along parallel to balloon axis direction, cutting tool is equipped with medicine injection through-hole and along the medicine drainage groove of cutting tool axial extension, medicine injection through-hole is connected with medicine drainage groove and the medicine channel between inner tube and intermediate tube.The utility model can be higher efficient and more uniform, comprehensive drug delivery while cutting, improve the cutting and drug treatment effect to intravascular plaque, can effectively reduce the occurrence of vascular restenosis, improve the treatment effect and life quality of patient.

A safe, multifunctional percutaneous abdominal diagnostic and treatment device includes an external rigid plastic cannula with an internally threaded connector at its rear end. It also includes a puncture needle and a biopsy probe that work in conjunction with the cannula. The puncture needle has an externally threaded connector at its rear end that mates with the internally threaded connector, and the biopsy probe has an externally threaded connector at its rear end that mates with the internally threaded connector. The biopsy probe has a hollow groove containing a screw. This invention enables percutaneous minimally invasive puncture techniques for abdominal tumor diagnosis and treatment; allows for arbitrary selection of a posterior lumbar or anterior abdominal approach based on the tumor location; avoids damage to adjacent organs such as the spinal cord, kidneys, and intestines during abdominal tumor diagnosis and treatment; allows selection of biopsy needle or biopsy forceps based on tumor size; integrates biopsy and drug injection functions; and can prevent tumor implantation through the needle tract.

This invention relates to saving power in injection devices, specifically providing a drug injection device (102) comprising: a cartridge (104); one or more processors (120) configured to operate at least in an active state and a dormant state; a component (115) disposed in the cartridge (104), the component (115) including at least two conductive surfaces (122) electrically connected to the one or more processors (120); and a drive mechanism (106) including conductive elements (124) spaced apart from the at least two conductive surfaces (122), wherein the one or more processors (120) are configured to enter the active state from the dormant state when the conductive elements (124) are in electrical contact with the at least two conductive surfaces (122).

The application provides a tumor internal medicine intervention treatment device, and relates to the technical field of medical equipment. The tumor internal medicine intervention treatment device is based on the device, which comprises a mounting seat, a mounting assembly, a syringe arranged on the inner surface of the semicircular groove, a two-way threaded rod rotatably connected to the inside of the mounting seat, a rotating block fixedly connected to one end of the two-way threaded rod, two connecting plates screwedly connected to the outer surface of the two-way threaded rod, clamping blocks fixedly connected to the outer surface of the connecting plates, a pushing assembly, a motor fixedly connected to the outer surface of the mounting seat, and a threaded rod fixedly connected to the output end of the motor. The pushing assembly can uniformly push the syringe to inject medicine, thereby effectively reducing the discomfort of the patient during injection. The limiting assembly can rotate and fold the turnover plate, thereby avoiding the situation that the length of the syringe is too long to affect installation after the medicine is drawn.

This utility model relates to the field of animal husbandry disinfection technology, specifically to a sterilization spray device for animal husbandry and veterinary use. It includes a spraying device and a drug supply device. The drug supply device is installed on top of the spraying device. The spraying device has a mounting plate, and a fixed platform is fixedly installed on the top of the mounting plate. A pressure tank is fixedly installed on the top of the fixed platform. The pressure tank has a drug trough. A rotating seat is fixedly installed at the bottom of the inner wall of the pressure tank. A drug inlet hole is fixedly opened on the outer side of the rotating seat. A rotating rod is movably installed on the top of the rotating seat, and a stirring plate is fixedly installed at the bottom of the rotating rod. A drug injection tube is fixedly connected to one side of the outer wall of the pressure tank through an opening. A telescopic plate is movably inserted into the outer wall of the rotating rod. This invention solves the problem that existing veterinary sterilization spray devices require hand-held spraying, exposing workers to the sterilization environment, which carries the risk of drug injury if proper protection is not provided.

A cannula comprising a hollow tube made of a biocompatible, thermoplastic polymer, memory shape material, tipped with an injection needle or an electrode at it distal end, assumes desired shapes as it distally emerges from a lumen or channel of an instrument such as an introducer or endoscope. The desires shapes include a curvature conforming to an inverse tangent function. The cannula may be supplied alone, with or without an injection needle or electrode, and in a sterile pouch, for use with a device of a user's choice that has a suitable lumen or channel to guide the cannula, of the cannula may be used without such an instrument. The injection needle can be shorter than conventional to thereby inject medication only or primarily in submucosa and can be sharpened only or mostly at it distal end while the remaining portion of a bevel is not sharp, to thereby reduce the size of an opening the needle makes in tissue and helps keep the medication from leaking out of the injection site.