45 results about "Injections methods" patented technology

The application discloses a double-cheek local medicine injector and an injection method thereof, and relates to the technical field of medical treatment.The injector comprises an injection barrel, a liquid outlet barrel connected to the front end of the injection barrel, a connecting barrel sleeved on the periphery of the liquid outlet barrel, an opening of the connecting barrel being attached to one side of the injection barrel, a needle connected to one end of the connecting barrel of the injection barrel, a push rod slidingly fitted in the hollow part of the injection barrel, a piston head attached to the inside of the injection barrel being connected to the side of the push rod facing the liquid outlet barrel, and a clamping mechanism arranged on the periphery of the injection barrel for clamping the connecting barrel.The clamping mechanism can be used to quickly disassemble the needle, and the medical staff does not need to laboriously pull out the needle, and the medical staff does not need to put the hand into the oral cavity of the patient during the process of pulling out the needle, the connecting barrel can be detached by directly rotating the clamping mechanism at the edge of the needle, and the medical staff is facilitated to replace the injection barrel.

The invention relates to a same-well extraction and irrigation method and system for an L-shaped well. The system comprises at least one well group, each well group at least comprises two L-shaped wells arranged at intervals, and well pipes are arranged in the L-shaped wells; the at least one heat compensation system is matched with the well group; the control device is arranged corresponding to the well group, the heat supply input end is connected with the water outlet end of the L-shaped well, the heat supply output end is connected with a lower-stage unit, the heat compensation input end is connected with the heat compensation system, the heat compensation output end is connected with the well pipe, and the control device is configured to decide the working mode of the L-shaped well in the same group and the regulation and control state of the well pipe based on the heat supply output end and the water outlet temperature of each well. The method specifically comprises the steps of judging the working mode and the recovery mode of the L-shaped well, selecting the recovery mode and adjusting the water outlet flow. The collecting modules are arranged at the water outlet ends of the L-shaped wells and the heat supply output end of the control device. Through well group binding, real-time monitoring and intelligent regulation and control, parallel heat collection and recovery are achieved, and heat supply continuity and energy recycling are guaranteed.

A method for injecting a therapeutic agent into a patient's skin or mucosa. The method uses a vial containing a therapeutic agent and a syringe containing a diluent comprising an aqueous solution. Attach a closed system drug transfer (CSDT) device to the syringe. Attach the CSDT device to the vial. Transfer the diluent from the syringe into the vial through the CSDT. Mix the diluent and the therapeutic agent to make a therapeutic agent solution mixture. Fill the syringe with the therapeutic agent solution mixture. The concentration of the therapeutic agent in the therapeutic agent solution mixture is ≤ 5 mg / ml. Inject the therapeutic agent solution mixture into skin or mucosa of the patient. Also disclosed are other injection methods and injection kits.

The invention belongs to the technical field of medical ultrasonic diagnosis auxiliary equipment, and discloses an electric right heart acoustic radiography foaming device which comprises a device body, the device body comprises a base, a mounting plate is fixedly arranged on the rear side of the base, a driving assembly is arranged on the front side of the mounting plate, and the driving assembly comprises fixing frames fixed to the upper side and the right side of the mounting plate; a stepping motor is fixedly arranged at the top of the fixing frame, a ball screw is fixedly arranged at the tail end of a main shaft of the stepping motor, a sliding block is spirally arranged on the outer side of the ball screw in a sleeving mode, and a connecting rod is fixedly arranged at the bottom of the sliding block, so that accurate controllability of power transmission and visual adjustment of parameters in the contrast agent injection process are achieved; specifically, key parameters such as injection speed and dosage can be accurately set through the operation panel, a traditional manual injection mode is replaced, and the stability of the foaming effect of the contrast agent is guaranteed.

The present invention relates to an automatic injection device, and the automatic injection device, which administers a medicinal solution after inserting a multi-needle equipped with a plurality of injection needles into a skin at a vacuum pressure, includes: a suction motor which generates the vacuum pressure; a current detector which is provided in the suction motor to detect a current generated in the suction motor; a control unit which controls the vacuum pressure; and an air flow sensor which detects an extent in which air is sucked, wherein the vacuum pressure varies depending on the value of the current detected by the current detector and the amount of air of the air flow sensor.

This invention discloses an injection method for CaHA microsphere products that enhance facial three-dimensionality through multi-layering, relating to the field of cosmetic technology. The method includes: precise injection techniques and area division based on specific needs; and a combination of needle angle, injection depth, layer, and dosage for specific anatomical locations. Specifically designed for Asian facial structures, it provides a strong, naturally integrated solution. By using CaHA microsphere injection products, the following effects can be achieved: Facial volume replenishment: effectively replenishing facial soft tissue atrophy and fat loss caused by aging, skin aging, or genetic factors, restoring facial fullness. It is commonly used to fill sunken areas of the face, such as tear troughs, nasolabial folds, sunken temples, and sunken cheeks.

The application discloses an eye implant injector and an eye implant injection method. The eye implant injector comprises a holding handle, a holding surface on the outside of the holding handle, a hollow inside of the holding handle forming a sliding cavity, a front end port on the front end of the holding handle, the front end port communicating with the sliding cavity, a sliding body arranged in the sliding cavity of the holding handle and in sliding cooperation with the sliding cavity, an outer catheter, a hollow inside of the outer catheter forming a guide cavity, a rear end of the outer catheter connected with the front end of the holding handle, an injection needle connected with the sliding body, the injection needle passing through the front end port and in sliding cooperation with the guide cavity of the outer catheter, and an end clamp installed on the front end of the injection needle and having at least a first clamp head and a second clamp head capable of being opened and closed with each other. The application can conveniently implant the eye implant, is convenient to operate, and can better guarantee the implantation effect.

The invention relates to the technical field of OCT imaging, and discloses an OCT automatic injection method, an OCT system applied to the OCT automatic injection system and a turbo system, and the method comprises the steps that an injection pump control module of the OCT system generates an injection control instruction and determines operation parameters, or the turbo system generates the injection control instruction and receives the operation parameters of the OCT system; a motor transmission module of the turbo system is connected with an injection pump control module, motor thrust is generated based on an injection control instruction and operation parameters, the motor thrust is applied to an injector through an injection module, and a medium in the injector is injected into a blood vessel; and an imaging control module of the OCT system synchronously controls an imaging device to perform OCT scanning on the blood vessel in the injection process so as to obtain an OCT image. Cooperative interaction control between the OCT system and the turbo system can be achieved, OCT scanning is synchronously completed in the injection process, and it is ensured that the injection speed and dosage are accurate and controllable.

The invention discloses a radiopharmaceutical split charging and injection system and a precise split charging and injection method, and belongs to the field of nuclear medicine split charging and injection. The system comprises a medicine dilution bottle protection mechanism and a subpackage transfer catheter, the split charging and transferring catheter is formed by a plurality of three-way valves connected in series, and the ports of the three-way valves of the split charging and transferring catheter are at least connected with a medicine injector, a diluent extraction tube and an injection tube; the medicine dilution bottle protection mechanism comprises a first activity detector, and a second activity detector is arranged on the outer side of the medicine injector. A radiopharmaceutical detector is arranged on the outer side of the injection tube. Through the arrangement of the first activity detector and the second activity detector, timely detection and re-checking of the concentration of liquid medicine in the medicine split charging process can be achieved, the actual metering of liquid medicine injection can be further checked, the injected liquid medicine is more accurate and more effective, and the clinical injection requirement is greatly met. And the injection process can be qualitatively monitored in real time through the arrangement of the radiopharmaceutical detector, so that the operation convenience and safety are improved.

The application discloses a medical tissue glue modified formula and injection method for treating esophageal varices, and relates to the field of tissue glue; the medical tissue glue modified formula and injection method for treating esophageal varices introduce polyoxyl glycol as a modifier, not only reduce the brittleness and hardness of n-butyl alpha-cyanoacrylate after polymerization, make the formed vascular embolus more flexible, significantly reduce the cutting risk of traditional hard glue block to thin-walled mucosa, thereby reduce the incidence of postoperative glue leakage ulcer and rebleeding; at the same time, polyoxyl glycol itself as a hardener can synergistically damage the vascular endothelium, accelerate thrombosis and vascular fibrosis, and improve the long-term occlusion effect; secondly, the addition of dragon's blood extract or nano-silver and other antibacterial components in the formula can actively inhibit local bacterial colonization, effectively reduce the risk of postoperative sepsis for the clinical pain points of low immunity and easy infection of patients with cirrhosis.

The invention relates to the technical field of medical instruments, in particular to an automatic sample feeding method and device for a sample cup of a blood coagulation analyzer, and the automatic sample feeding device comprises a shell, a cup feeding assembly, a belt releasing assembly, a belt collecting assembly, a sample cup disc, a cup belt seat and a cup belt, the cup feeding assembly comprises a cup feeding seat, a belt pressing wheel, a cup feeding cover plate and a discharging component; when a single sample cup moves to the cup inlet cover plate under the traction of the cup belt, the sample cup on the cup belt is stripped by the cup inlet cover plate; then the tape collecting assembly continues to pull the cup tape, and the cup tape drives the subsequent sample cup and the stripped sample cup to move towards the outlet along the sample cup channel; in the process, due to the fact that the cup belt and the sample cup material have elasticity and errors possibly exist in the actual traction stroke, when the sample cup cannot completely enter the connection position on the discharging component, the guide face can guide the side edge of the cup body to the correct path, displacement deviation generated by elastic deformation is compensated, it is guaranteed that the sample cup smoothly and completely enters the next station, and the sample cup is prevented from being damaged. And the cup squeezing or clamping phenomenon is effectively avoided.

The application discloses a driving mechanism, a driving method, an automatic injection device and an injection method. The driving mechanism comprises a push rod, a guide tube, a release sleeve and a rotor. The push rod is coaxially arranged in the guide tube. The guide tube is provided with elastic arms and a first opening. The release sleeve is coaxially nested on the outer wall of the guide tube. The release sleeve is provided with a second opening and a first elastic hook. The rotor is nested on the outer wall of the release sleeve and is used for limiting the radial movement of the first elastic hook. The rotor is provided with a third opening. When the first opening and the third opening intersect, and when the first elastic hook moves to the intersecting position, the first elastic hook is ejected towards the third opening, so that the guide tube releases the axial limitation on the release sleeve. When the second opening reaches the position of the elastic arms, the outer elastic arms release the axial limitation on the push rod, and the push rod moves from the distal end to the proximal end. The control start of multiple nodes can be realized, and the uniformity of drug mixing during injection is improved.

To reduce grouting costs while efficiently improving ground.SOLUTION: An injection method of a grout material comprises: a permeability coefficient acquisition step of acquiring a permeability coefficient of the ground in a drilled hole; a grout material determination step of determining a type of grout material based on the permeability coefficient acquired in the permeability coefficient acquisition step; and a grout material injection step of injecting the type of grout material determined in the grout material determination step into the drilled hole. In the grout material determination step, when the permeability coefficient acquired in the permeability coefficient acquisition step is greater than a predetermined threshold value, the type of grout material is determined to be a first grout material generated by mixing a first cement and water, and when the permeability coefficient acquired in the permeability coefficient acquisition step is equal to or less than the threshold value, the type of grout material is determined to be a second grout material generated by mixing second cement having an average particle size smaller than the average particle size of the first cement with water.SELECTED DRAWING: Figure 2

The invention discloses a fluid medium injection method and device, and belongs to the technical field of fluid medium conveying. A plurality of injection points are arranged in the circumferential direction of an injection opening of a to-be-filled cavity, a fluid medium is injected into the to-be-filled cavity along the injection points, and the fluid medium pressure of at least one injection point is higher than that of the other injection points. The fluid medium entering the to-be-filled cavity forms circumferential sweeping flow along the filling cavity under the action of the circumferential pressure difference; according to the method, the fluid medium pressure of at least one injection point is set to be higher than the fluid medium pressure of the other injection points, so that a non-equilibrium pressure field distributed in the circumferential direction can be constructed in the to-be-filled cavity, and static pressure balance formed under the condition of multiple injection points is destroyed; therefore, the fluid medium entering the to-be-filled cavity forms circumferential sweeping flow along the to-be-filled cavity under the action of the circumferential pressure difference, and the fluid medium can cover and fully fill the to-be-filled cavity in a continuous flowing state.

The invention discloses a rat parotitis model construction method based on general anesthesia and parotid gland directional injection, which belongs to the technical field of biology and comprises the steps of animal preparation, anesthesia, disinfection incision exposure, LPS injection and postoperative care. The method has the advantages that the parotid gland is directly exposed by adopting a longitudinal incision of the cheek, 2mg / mL LPS (0.2 mL and depth of 2mm) is injected, microscope positioning is not needed, the operation is simple and convenient, inflammation is limited to the parotid gland, pathological characteristics (alveolar injury, inflammatory infiltration and saliva reduction) are consistent with those of clinical application, the success rate is greater than or equal to 90%, and compared with an existing catheter injection method, the method is high in repeatability, less in interference and suitable for disease mechanism research and drug screening.

The present invention aims to provide a syringe that can minimize tissue damage near the injection port of the injected object. It provides an syringe that injects a solution containing biomolecules from the syringe body into the injected object without injecting through a given structure inserted into the injected object. The syringe includes a container for holding the solution containing biomolecules and a nozzle for ejecting the pressurized solution through and out of the injected object. When fitting the relationship between the displacement x of the front end of the solution containing biomolecules within the injected object and the velocity u(x) of the front end of the solution using a fitting function expressed by equation (1) and employing the least squares method, the damping coefficient k is 1.59 or higher, and u(x) = u0exp(-kx) + u e (1), where u0 represents the velocity coefficient (m / s), k represents the damping coefficient (1 / mm), u e This indicates the asymptotic velocity (m / s).

This invention belongs to the field of fire protection technology, specifically relating to a multiphase media injection device, injection method, and usage method. The multiphase media injection device includes: an outer cylinder for conveying a liquid medium; a delivery pipe disposed within the outer cylinder for conveying a solid medium via gas; and a gas-solid separation pipe disposed on the delivery pipe, wherein the gas in the delivery pipe can mix with the liquid medium in the outer cylinder through the gas-solid separation pipe.

The invention relates to a secondary injection type pintle injector and an injection method thereof.The secondary injection type pintle injector comprises a pintle and an outer nozzle, the middle of the pintle is sleeved with the outer nozzle, and an annular first injection channel is formed between the outer nozzle and the middle of the pintle; the pintle comprises an outer sleeve and an inner sleeve, the two axial ends of the outer sleeve are each of an open structure, one axial end of the inner sleeve is of a plugging structure, the other axial end of the inner sleeve is of an open structure, the inner sleeve is arranged in the outer sleeve in a sleeved mode, a second injection channel is formed between the inner sleeve and the outer sleeve, and the open end of the inner sleeve is fixedly connected with the open end of the outer sleeve in a sealed mode; the plugged end of the inner sleeve is positioned in the outer sleeve; a plurality of inner swirl nozzles are arranged in the second injection channel, one end of each inner swirl nozzle is connected with the inner sleeve and communicates with an inner cavity of the inner sleeve, and the other end of each inner swirl nozzle is connected with the outer sleeve and communicates with the first injection channel; the inner swirl nozzle extends along the tangential direction of the inner sleeve; and a plurality of injection holes are formed in the outer sleeve.

The present application relates to the field of cosmetic technology, in particular to a filling and shaping injection method based on improving facial aesthetics, which identifies target areas according to individual three-dimensional morphological assessment or digital assessment results, includes a facial support system, a volume system and a contour system, selects at least one system in the target area based on the type of aesthetic defect, and selectively implements one or more injections; the facial support system includes eyebrow arch, malar arch, temporal region and mandibular angle region; the volume system includes forehead, cheek and neck; the contour system includes nose, chin, lower jaw edge and ear base; according to the physiological structure and shaping needs of different parts, the injection material is accurately selected and the dilution ratio is determined, laying a foundation for shaping effect. The filling agent stock solution or suitable proportion diluent can provide stable support and / or improve texture due to its own material properties, and good compatibility with the surrounding tissue after injection.

The application relates to the technical field of microinjection, in particular to a microinjection system and an injection method. The microinjection device comprises a moving carrier, at least two mechanical arms and injectors arranged at the ends of the mechanical arms correspondingly. The moving carrier comprises a horizontal moving platform and a rotating platform. The rotating platform is arranged on the horizontal moving platform and is used for carrying culture dishes containing at least two different types of samples. The rotating axis of the rotating platform is arranged vertically. The horizontal moving platform is used for driving the rotating platform to move in the mutually perpendicular horizontal X direction and horizontal Y direction. The number of the injectors is the same as the number of the sample types. The at least two mechanical arms drive the injectors at the ends to perform injection operations on one type of sample. The application can perform injection on various types of samples in the same culture dish, thereby greatly improving the efficiency of microinjection operation.

The invention discloses a glue injector special for eye bag surgery and an injection method thereof, the injector comprises a shell, a blue light emitting assembly and a glue injection assembly, the blue light emitting assembly is arranged on the front end side of a containing cavity, and the glue injection assembly is arranged on the rear end side of the containing cavity; the glue injection assembly comprises a pipe body, a partition plate, a first piston, a push rod, a first limiting mechanism and a second limiting mechanism, and the partition plate, the first piston, the push rod, the first limiting mechanism and the second limiting mechanism are arranged in the pipe body. The piston unit is configured to be capable of switching between a filling state of communicating with the storage bin and guiding glue into the injection bin in a one-way mode and a glue injection state of injecting the glue into the eye bag position from the injection bin, and the push rod is configured to drive the pipe body to move from the position away from the blue light emitting assembly to the side close to the blue light emitting assembly; meanwhile, the piston unit is switched from the filling state to the glue injection state, and the first limiting mechanism is configured to be used for limiting the position of the push rod in the movable bin; the blue light emitting assembly is configured to be used for emitting blue light to accelerate curing of the glue.

Methods and formulations for a simplified, single-injection method to induce and control the synchronous growth (superstimulation), and ovulation (superovulation) of multiple ovarian follicles in bovine, ovine, caprine, camelid and other female animals enabling the subsequent collection of (a) multiple oocytes when conducting in-vitro fertilization, or (b) multiple embryos when conducting multiple ovulation embryo transfer.

This invention relates to the field of liquid chromatography systems and discloses an injection device, an injection method for the injection device, and a liquid chromatography system. The injection device includes: an injection valve with a liquid pump interface and a column interface; a quantitative loop connected to the injection valve at both ends; a buffer tube connected to the injection valve at one end; a syringe connected to the other end of the buffer tube; and an injection needle connected to the injection valve. The injection valve has an injection mode, a pressure relief mode, and a sample loading mode. In the injection mode, the liquid pump interface, the quantitative loop, and the column interface are open, as are the buffer tube and the injection needle. In the pressure relief mode, the liquid pump interface and the column interface are open, and one end of the injection needle and the quantitative loop are open while the other end of the quantitative loop and one end of the buffer tube are closed. In the sample loading mode, the liquid pump interface and the column interface are open, as are the buffer tube, the quantitative loop, and the injection needle. This invention can achieve pressure relief during high-pressure injection, enabling precise injection of high-pressure, wide-volume samples within the liquid chromatography system.

The invention relates to the field of animal disease models, and discloses an improved progressive immune checkpoint inhibitor related myocarditis mouse model as well as a construction method and application thereof. The construction method of the model comprises the steps that 0.1 mL of a Freund's complete adjuvant mixed solution is subcutaneously injected into a mouse on the 0th day and the 7th day, and the solution contains 0.25 mg of a mouse cardiac troponin I immunogenic peptide fragment; the method is characterized in that a PD-1 inhibitor and a CTLA-4 inhibitor are jointly injected into a mouse in a caudal vein mode at the frequency of one time every two days from the eighth day, the injection dosage of each drug is 5 mg / kg per time, and the injection process is carried out for 5 times in total. According to the application, cardiac inflammation caused by ICIs drugs is induced through combined use of various reagents, and a disease outcome stage of a patient in the real world is perfectly simulated through dose control and injection method improvement, so that a bedding effect is achieved for clinical research and drug test.

The application discloses a medicine injection method for killing camel head fly larvae parasitizing in the nasal cavity of a bactrian camel. A pair of non-bony structures similar to a triangle and the size of a thumb are arranged at the joint of nasal bone, maxillary bone and frontal bone. The pair of non-bony structures are at the same horizontal level with the eye socket of the bactrian camel, are located at the intersection of the inner corner of the eye and the upper edge of the eye socket, and are away from the eye socket by 4-5 cm. After a syringe is vertically inserted into 2-3 cm at the site, the needle of the syringe can reach the medial part of the concha nasalis. After the site is inserted into 2.5-3 cm in the clockwise direction and is inclined by 45 degrees, the needle can reach the lateral part of the concha nasalis. The medicine injection method can directly inject the insect killing medicine to the parasitizing position of the first instar larvae, and the purpose of killing the first instar larvae is achieved. The medicine injection method provides a new method for killing the first instar larvae in the overwintering period, and can reduce the economic loss of the camel raising industry caused by the nasal fly maggot disease.

The application provides an ultrasonic-assisted pain-reducing acupuncture micro-injection method and device, which comprises the following steps: S1, acquiring real-time ultrasonic images of an acupuncture part by using an ultrasonic imaging device to determine the position of a target acupoint and surrounding tissue structure information; S2, planning an injection path according to the acquired position of the target acupoint and surrounding tissue structure information, wherein the injection path avoids important blood vessels and nerves; and S3, slowly injecting an acupuncture needle into the skin along the planned injection path under the guidance of the ultrasonic images; the application acquires real-time ultrasonic images by using an ultrasonic imaging device, accurately determines the position of a target acupoint and surrounding tissue structure information, and plans an injection path that avoids important blood vessels and nerves, thereby greatly improving the injection accuracy; meanwhile, an ultrasonic-assisted pain-reducing module is started when the needle tip approaches the target acupoint, the ultrasonic vibration is used to reduce the pain of a patient, and the vibration amplitude and frequency are adjusted in real time according to the feedback of the patient, thereby realizing individualized pain reduction.

The application belongs to the field of biological medicine, and particularly relates to a drug for treating EGFR mutant non-small cell lung cancer meningeal metastasis, application, a medicine box and a preparation method of the drug, the drug is a lyophilized powder preparation or injection solution for subarachnoid injection of EGFR-TKIs, the amount of EGFR-TKIs in the drug is 0.01-5 mg per person, and the injection method comprises any one of lumbar puncture, injection through a catheter indwelled in the pre-bridge pool and Ommaya capsule injection. The prepared EGFR-TKIs injection solution can be directly injected into the subarachnoid space, greatly improving the drug concentration in the cerebrospinal fluid of the patient, the cerebrospinal fluid / plasma concentration ratio is increased from far less than 1 to more than 2 times, and even more than 10 times. The application can completely solve the problem of insufficient dose caused by the blood-brain barrier after oral administration of a targeted drug, and the drug has fast effect and can significantly improve the treatment effect of lung cancer meningeal metastasis.

An injectable wire structure electrode can assimilate with surrounding tissues after injection, inducing in-growth of blood vessels, collagen and other tissue. Assimilation secures the electrode to the tissue without sutures and prevents relative motion which can lead to inflammation and scarring. Associated methods of manufacturing and injection are disclosed, as well as systems including a dermal multiplexer for power delivery.

To provide an invert-block capable of being easily carried out construction to prevent plate swelling in tunnels at low cost in a short construction period.SOLUTION: An invert-block 10 is placed on the bottom ground of a tunnel to form a reverse arch shape along the circumferential direction of the tunnel. The invert-block is constituted of multiple steel elements 10e having a long shape, which are connected to each other axially on the long side and arranged long in the circumferential direction of the tunnel. These elements 10e are integrated to form a box-shaped hollow structure consisting of an upper plate ts, a lower plate us, and side plates sf. A connection opening 10ea formed on the longitudinal side of the elements 10e has a truss-shaped support member 11 that is provided to connect the internal spaces of both elements 10e and to support the load from above. The element 10e is provided with a grout injection hole H3 for injecting grout between the element 10e and the installed ground.SELECTED DRAWING: Figure 2