15 results about "Bolus injection" patented technology

The application discloses a master-slave separated embolism agent mixed injection device, which solves the liquid layering phenomenon in the operation process, and comprises an execution end arranged in an operating room and a control end arranged in a control room and capable of controlling the execution end. The control end comprises an embedded controller, a signal collector and an injection handle, the control end and the execution end are in wireless communication, the execution end comprises a drug carrying module, a shaking module and an injection module; the drug carrying module is used for carrying a needle cylinder carrying a drug; the injection module is used for pushing the needle cylinder on the drug carrying module in an injection direction to perform injection; and the shaking module is used for reciprocating the needle cylinder in the drug carrying module in a direction perpendicular to the injection direction. In the application, the shaking module realizes reciprocating operation by cooperation of a rack and a non-complete gear, the needle cylinder can realize small-range shaking in a horizontal plane, and finally the purpose of mixing the drug liquid is achieved, which is close to the artificial mixing process.

The medical device comprises a liquid storage tank, an injector assembly and a double-one-way-valve system, the injector assembly comprises an injector body and an elastic body, a piston is located in an injection cylinder, one end of a piston rod is connected with the piston, the other end of the piston rod is connected with an end baffle, and the end baffle is connected with the elastic body. The piston rod is sleeved with the elastic body, and the two ends of the elastic body abut against the syringe and the end baffle respectively. The double-one-way valve system comprises a first one-way valve, a second one-way valve and a three-way pipeline, three ports of the three-way pipeline are connected with a discharge port of the first one-way valve, an inlet port of the second one-way valve and a suction and discharge port of the syringe respectively, and the inlet port of the first one-way valve is communicated with the liquid storage tank through a pipeline; compared with full-manual equipment, the automatic liquid replenishing device can realize automatic liquid replenishing and is more convenient to operate. Compared with full-automatic equipment, flexibility of manual pushing injection is reserved, and meanwhile automatic liquid supplementing can be achieved through a simple mechanical structure.

A trigger arrangement for an infusion device is disclosed, the trigger arrangement being configured to trigger a bolus injection of the infusion device and including: a body having an outside surface, a haptic structure arranged on the outside surface or integrated into the outside surface, wherein the haptic structure includes a first end section and a second end section and wherein the haptic structure includes a haptic track extending from the first end section to the second end section, a touch sensitive sensor arrangement extending along the haptic track and configured to detect a sliding motion of an object along the haptic track.

Provided are a bolus injection assembly and an injection apparatus. The bolus injection assembly comprises a support member (40), a torsion member (13), a pressing member (11), an elastic reset member (34), an elastic force accumulation mechanism, a bias device (32), and a piston rod unit. The support member (40) is provided with an injection output end (410). The torsion member (13) is provided with a first engagement portion (134). The elastic force accumulation mechanism is configured for generating bolus injection driving energy. The piston rod unit is mounted in the support member (40) and is provided with a second engagement portion (211). The bias device (32) is provided with a bias engagement portion (324) and is movable between a first working position and a second working position. When the bias device (32) is in the first working position, the bias engagement portion (324) is separated from the second engagement portion (211) and engages with the first engagement portion (134) of the torsion member (13), such that when the torsion member (13) rotates, the torsion member (13) actuates the elastic force accumulation mechanism to rotate through the bias device (32); when the bias device (32) is in the second working position, the bias engagement portion (324) is separated from the first engagement portion (134) and engages with the second engagement portion (211) of the piston rod unit for transferring the bolus injection driving energy of the elastic force accumulation mechanism to the piston rod unit. The bolus injection assembly works stably and reliably, and can also shorten the energy transmission path of the piston rod unit, thereby improving the energy transmission efficiency.

The application discloses a flushing device for bullet injection, and relates to the technical field of medical devices.The flushing device for bullet injection comprises a shell, a connecting pipe, an elastic member and at least one latch, wherein the shell is provided with a partition plate to form a storage cavity and a movable cavity in the inner cavity of the shell, the storage cavity is filled with physiological saline, the connecting pipe penetrates the shell in the up-down direction, the upper end is connected with a remaining needle, and the other end is connected with a syringe, and the at least one latch is inserted on the shell to limit the movement of the partition plate to the direction of the storage cavity.The operation process is significantly simplified, the quality of the bullet is improved, the time for medical staff to contact radioactive drugs is reduced, and the risk of occupational exposure is reduced.

The application discloses a flushing and sealing pipe device in the technical field of medical auxiliary devices, which comprises a liquid supply component, a driving pump and a hose. The liquid supply component is installed on the pump shell of the driving pump, which improves the integration of the flushing and sealing pipe device and makes the flushing and sealing pipe device convenient to store or carry. The two ends of the hose are respectively connected with the liquid supply component and the intravenous catheter, and the middle part of the hose is arranged in the interior of the pump shell, so that the hose does not need to be disconnected with the intravenous catheter for multiple times for sucking liquid, the number of interface exposure is significantly reduced, and the risk of intravenous catheter pollution is significantly reduced. The rotary pump head in the interior of the pump shell extrudes the hose, so that the liquid in the liquid supply component flows to the intravenous catheter to flush and seal the pipe. The steps of sucking, disinfecting, exhausting, bolus injection and the like are omitted, the flushing and sealing pipe operation is more convenient and fast, the artificial operation time is reduced, and the threshold of the flushing and sealing pipe operation is lowered.

The invention relates to the technical field of medical imaging diagnosis, in particular to a venous access pressure meter. Comprising an equipment main machine and a disposable syringe, and the disposable syringe is installed on the front face of the equipment main machine; the equipment host comprises a shell, a driving and control system arranged in the shell, and a pressure detection system; the self-adaptive injector clamping mechanism, the man-machine interaction interface and the code scanning module are arranged on the front face of the machine shell. According to the venous access pressure meter provided by the invention, through the combination of the driving and control system and the pressure sensor, the injection process is converted into objective data such as accurate flow velocity, dosage and real-time pressure curve, and the difference of human experience is eliminated, so that a unified and quantifiable standard is provided for judging the smoothness of an indwelling needle, and the result is more reliable.

The utility model relates to the technical field of medical instruments, and discloses an auxiliary quantitative injection device of a syringe, which comprises a fixed sleeve and a gun body, the syringe is adaptively placed in the fixed sleeve, the inner wall of the syringe is in interference fit with a syringe push rod, the front end of the inner wall of the gun body is fixedly connected with a thread bushing, and the inner wall of the gun body is fixedly connected with the thread bushing. The outer wall of the threaded sleeve is connected with the rear end of the inner wall of the fixing sleeve in a threaded fit mode, the rear end of the injector is fixedly connected with a clamping plate, the inner wall of the threaded sleeve is fixedly connected with a pressing plate, the opposite faces of the clamping plate and the pressing plate are attached to each other, and an outlet allowing an injection nozzle of the injector to stretch out is formed in the front end of the fixing sleeve. According to the utility model, through the design of the trigger and the displacement screw rod and the cooperation of the high transmission ratio and the spiral amplification function of the gear worm structure, the use process is more stable, the injection of low-dose liquid can be realized, and the displacement amount of the displacement screw rod driven by pulling the trigger once can be conveniently adjusted, so that the injection amount is changed.

The invention discloses a method, system, equipment and medium for linkage of an OCT system and an injection pump, and relates to the technical field of injection.The method comprises the steps that OCT scanning is conducted on a blood vessel, and an OCT image is obtained; segmenting the OCT image to obtain a binary mask of a blood vessel wall and a catheter wall, extracting a central axis of a single pixel width of the binary mask, calculating blood vessel-catheter tangential direction differences point by point in an overlapped projection area of the blood vessel and the catheter, and taking a median of all the blood vessel-catheter tangential direction differences as a final coaxiality evaluation value; and after the final coaxiality evaluation value is greater than a set value, triggering a smoking push injection mode of the injection pump, triggering a pull-back push injection mode according to the effect of the smoking push injection mode, dynamically adjusting the radiography push injection speed, and automatically starting OCT pull-back until the OCT image is displayed and flushed. According to the method, on the basis of an injection speed self-adaptive adjustment mechanism of image quality, the use efficiency of a contrast agent is optimized on the premise that a safe pressure threshold value is guaranteed.

The utility model relates to the technical field of contrast agent injection, and discloses a contrast agent injection device for hysterosalpingography, which comprises an injection tube, a piston is arranged in the injection tube, the piston is driven by an electric push rod arranged on one side of the injection tube, an injection head is arranged at the end part of the injection tube, and a plurality of sealing reinforcing rings are arranged on the outer side of the other end of the injection head; the supporting framework is arranged below the injection pipe and used for fixing the injection pipe and the electric push rod; the storage box is fixedly arranged below the supporting framework and communicates with the injection pipe through an extraction pipe; the heating box is fixedly arranged below the supporting framework, communicates with the injection pipe through a supply pipe and further communicates with the storage box through a communicating pipe, and a heating module is arranged on the side wall of the heating box; and heat preservation structures are arranged on the outer walls of the injection pipe, the storage box and the heating box. The device has the advantages that the device has the functions of recovery and cyclic heating, ensures that a contrast agent with proper temperature can be used at any time, has a good heat preservation effect, and saves electric power.

The invention discloses a full balloon microcatheter for targeted delivery of gene drugs in blood vessels, and relates to the technical field of medical instruments, and the technical key points are as follows: the balloon microcatheter comprises a microcatheter main body, and the top of the microcatheter main body is provided with a full balloon; the micro-catheter main body is a multi-cavity catheter, and a balloon cavity, a medicine cavity and an optional guide wire cavity are embedded in the micro-catheter main body; the selectable guide wire cavity and the medicine cavity penetrate from the top of the microcatheter main body to the bottom of the microcatheter main body; the balloon cavity penetrates through the top of the micro catheter body and extends to the position where the balloon can be filled. A plurality of lateral micropores are formed in the bottom of the microcatheter main body and are communicated with the medicine cavity. According to the balloon micro-catheter, by means of the combination mode of'injection and slow release ', rapid high-concentration gathering and long-term continuous playing of the medicine are achieved, and then the treatment efficiency is greatly improved.

The present application relates to the technical field of medical devices, in particular to a five-degree-of-freedom prostate acupuncture surgery robot, comprising a mounting seat, a puncture needle is slidably connected to the mounting seat, a puncture hole is formed in the mounting seat for the sliding of the puncture needle, a driving mechanism is arranged on the mounting seat for driving the puncture needle to move, a delivery mechanism is arranged on the mounting seat for delivering and storing anesthetic, and a bolus injection mechanism is arranged on the mounting seat for pushing the anesthetic to the lesion as needed. The driving mechanism is also used to drive the delivery mechanism and the bolus injection mechanism to operate, the anesthetic is delivered to the bolus injection mechanism through the delivery mechanism, and then the anesthetic is delivered to the lesion according to the anesthetic requirement through the bolus injection mechanism. The present application is used to shorten the non-therapeutic time-consuming in the surgical procedure and improve the overall smoothness and efficiency of the surgery.

The automatic contrast agent replacing equipment comprises an upper box body and a lower box body, and the upper box body is arranged on the top surface of the lower box body; the fixing assembly is mounted in the upper box body and is used for fixing a contrast agent; the extraction assembly is mounted in the upper box body and is used for extracting the contrast agent; the pushing and injecting assembly is mounted in the lower box body and is used for pushing out and injecting the contrast agent; through cooperative work of the fixing assembly, the extraction assembly and the injection assembly, fixing, automatic extraction and injection of a contrast agent are achieved, manual intervention is reduced, the operation speed is increased, and the dose control precision is improved; the liquid level height of the contrast agent can be monitored in real time, timely replacement is reminded, and operation interruption and influence on operation progress are avoided; a medical worker can adjust the injection assembly in real time according to the actual condition of an operation to change the injection speed of a contrast agent; when rapid mass injection is needed, the injection assembly can rapidly push the contrast agent into the blood vessel in a short time at high flow speed and high pressure.

The utility model relates to the field of medical instruments, in particular to a microbubble generation and injection device for a transcranial Doppler foaming test, which comprises a microbubble generation device, an injector pushing device and a controller, the microbubble generating device comprises two injectors and two three-way switches, each injector comprises a cylinder and a piston movably mounted in the cylinder, and the bottom of each cylinder is connected with the corresponding three-way switch; the injector pushing device comprises a base, a clamping mechanism is fixedly arranged on the base, the clamping mechanism comprises a fixing piece and a limiting block, the clamping mechanism fixes the cylinder in the fixing piece through the limiting block, a driving mechanism is fixedly arranged on the fixing piece, the driving mechanism pushes the piston to reciprocate in the cylinder, and the controller is electrically connected with the driving mechanism. The microbubble foaming device can replace manual foaming, has the operation frequency which can not be reached by a human hand, can generate microbubbles with different sizes and distribution according to requirements, is stable in foaming and high in repeatability, and avoids instability of manual foaming and the risk that an operator suffers from tenosynovitis.

This invention discloses an intelligent control method and system for a portable infusion aid device, relating to the field of intelligent control of portable infusion aid devices, used to ensure the accuracy of drug delivery and patient medication safety. The method includes: acquiring fluid pressure information within the infusion tubing and patient motion information; performing frequency feature analysis on the fluid pressure information to identify target pressure frequency features; the target pressure frequency features include a first pressure frequency feature related to instantaneous external effects and a second pressure frequency feature related to slow internal changes; identifying motion features of the motion information; the motion features include motion pattern and motion intensity; assessing the degree of correlation between the target pressure frequency features and the motion features; determining a judgment result based on the degree of correlation; the judgment result indicating whether fluid pressure fluctuations are caused by benign activity or predict early tubing abnormalities; and issuing an early warning in response to the judgment result indicating that fluid pressure fluctuations predict early tubing abnormalities.