10 results about "Saline injection" patented technology

This utility model discloses a feeding tube with a flushing function, relating to the field of enteral feeding tube technology. It includes a silicone tube with a pin connector and a pagoda connector fixedly connected to its top and bottom ends, respectively. From top to bottom, the silicone tube is equipped with a drip bottle, a speed controller, and a medication inlet. The medication inlet is Y-shaped, and the silicone tube connects to one port at the top and one port at the bottom of the medication inlet. A flushing mechanism is connected to the other port at the top of the medication inlet. This utility model connects a flushing tube to the medication inlet of the flushing tube, and the flushing tube contains a storage chamber and a piston. The piston pushes saline solution from the storage chamber into the feeding tube, achieving flushing of the inside of the feeding tube. Through the cooperation of a ball screw and a ball nut, the saline solution is flushed at a pulsed frequency, reducing irritation to the intestines during saline injection.

The utility model discloses an efficient injection device of a saline injection machine, which belongs to the technical field of food processing equipment and comprises a needle tube, a water injection channel is arranged in the needle tube, a base is positioned on the needle tube, a sliding seat is movably sleeved on the base, and a plurality of meat pressing plates for pushing the surfaces of objects to squeeze the peripheral side of the needle tube are fixedly arranged on the sliding seat. And an elastic piece capable of applying elastic force to the sliding seat is arranged on the base. According to the efficient injection device of the saline injection machine, after the needle tube is inserted into a meat block, the meat pressing plates push the surface of an object to extrude the peripheral side of the needle tube under the abutting action of the elastic pieces, so that saline is not easy to flow out along the direction opposite to the direction in which the needle tube is inserted into the meat block during saline injection; and the state is maintained under the action of the elastic piece within a period of time when the needle tube gradually leaves the meat block, so that the effective injection rate of the saline water is effectively improved when the needle tube injects the meat block every time.

An intraoperative saline test catheter for mitral valve repair. The intraoperative saline test catheter comprises a saline injection hose, wherein the saline injection hose is fixed to a saline-inlet-end threaded joint at one end, and is fixed to a saline-outlet-end member at the other end. An inner cavity is provided in the hose wall of the saline injection hose, and a flexible metal member is fixed in the inner cavity, with the axis of the flexible metal member being parallel to the axis of the saline injection hose. The technical effects of the present invention, compared with the prior art, lie in that the provision of the metal member enables the present invention to be adjusted to a suitable angle without affecting the bending thereof, and the present invention can also be shaped after being bent, and can stably maintain its configuration, thereby facilitating accurate inspection of the state of a heart valve.

The utility model relates to the technical field of medical instruments, and discloses a multi-channel thrombus aspiration catheter which comprises a catheter base, a catheter body is arranged on the catheter base in a penetrating mode, a breaking knife is arranged in the catheter body in a sliding mode, and an aspiration tube is arranged outside the breaking knife in a sleeved mode. When the multi-channel thrombus aspiration catheter is used, firstly, the catheter body is moved to the thrombus of a patient, the crushing knife is rotated to crush the large thrombus, meanwhile, due to the arrangement of the saline injector, saline can be conveniently flushed out through the catheter body by pressing the saline injector, and the thrombus aspiration catheter is convenient to use. The suction pipe is connected with negative pressure equipment through the threaded connector, the thrombus is pumped out through the suction pipe, saline water in the saline water injector can be replaced with treatment liquid medicine for treatment in the actual use process, and therefore the large-size and high-viscosity thrombus can be flushed into small blocks convenient to extract through the auxiliary crushing knife, and the thrombus is pumped out through the suction pipe. And the practicability of the multi-channel thrombus aspiration catheter is improved.

The invention discloses a construction method of a mouse autism intervention model, and belongs to the technical field of neurobiology and animal model construction. Comprising the following steps: S1, selecting a pregnant C57BL / 6J female mouse, performing VPA induction on the 12th to 13th embryo to form an experimental group, and injecting normal saline into another mouse to form a control group; s2, performing AAV-shRNA targeted mGluR5 virus injection on the mice in the experimental group, and retaining the injection for 15 minutes after the injection so as to avoid backflow; s3, recovering the postoperative mouse for 3 weeks, performing behavioral detection on the mouse at the age of 7 weeks, and performing protein and morphological analysis on the hippocampal tissue after an experiment; s4, carrying out behavioral experiments to evaluate ASD sample behavioral characteristics, detecting mGluR5 and PSD95 protein expression levels in the hippocampus tissues by using Western blot, and analyzing changes of synaptic structures by adopting Golgi staining. The VPA model provided by the invention can be used for wider autism research, and a model platform which is low in toxicity, easy to operate and repeatable is provided.

The utility model discloses a saline injection machine convenient for replacing a needle head, which belongs to the technical field of food processing and comprises an injection machine body provided with a placing groove, a telescopic stand column is fixedly arranged on the end face of the injection machine body close to the placing groove, the telescopic stand column is fixedly connected with a fixing frame, and a material storage groove is formed at the top of the fixing frame. A movable plate is slidably arranged on the end face, close to the containing groove, of the material storage groove, a plurality of holes are evenly formed in the movable plate, needle inserting pieces are arranged at the positions, corresponding to the holes, of the containing groove, the needle inserting pieces are fixed to a limiting plate, and the limiting plate is slidably connected with the fixing frame. And a limiting piece for limiting the sliding of the limiting plate and the moving plate is arranged on the fixed frame. According to the saline injection machine convenient for replacing the needle head, the designed needle inserting piece is matched with the movable plate and the limiting plate, so that a user can easily replace the needle head.

The utility model discloses a pulse type deep venous catheter saline injector which comprises a cylinder body, one end of the cylinder body is provided with a liquid outlet pipe communicated with the interior of the cylinder body, a piston is arranged in the cylinder body in a sliding mode, and the end, away from the liquid outlet pipe, of the piston is fixedly connected with one end of a threaded rod. A threaded rod is arranged at one end of the cylinder, a threaded sleeve matched with the threaded rod is rotationally arranged in the other end of the cylinder, a mounting disc is fixedly arranged outside the other end of the cylinder, a servo motor used for driving the threaded sleeve to rotate is arranged on the mounting disc, and a limiting disc is fixedly arranged at the end, away from the piston, of the threaded rod. According to the utility model, the injection dose deviation caused by manual injection is avoided, and the cleaning degree of washing the deep venous catheter is ensured; due to the fact that the one-way valve is arranged on the liquid outlet pipe, normal saline in the cylinder body can only flow to the outside of the liquid outlet pipe, and the situation that blood flows back to the syringe is prevented.

The system and method for real-time ultrasound monitoring of the catheter tip position during port-a-catheter implantation can solve the problems of low spatial and temporal resolution in X-ray assessment of the catheter tip position, reduce the risk of complications caused by catheter adjustment lag, reduce patient X-ray radiation exposure, and achieve real-time ultrasound judgment and timely adjustment of the catheter tip position during the operation. The port-a-catheter is a three-way valve catheter with a solid central part at the tip and a reversible balloon attached to the periphery of the tip. The port-a-catheter is equipped with a support guidewire at the center, which is inserted through the heparinized saline injection channel. The normal saline injection channel is located inside the side wall of the port-a-catheter. One end of the normal saline injection channel is connected to the reversible balloon, and the other end is connected to the normal saline injection port (3). The heparinized saline injection channel is located at the center of the port-a-catheter. One end of the heparinized saline injection channel is connected to the central part of the tip, and the other end is connected to the heparinized saline flushing port (4).

1. Name of the product in this design: Saline Injector. 2. Purpose of this design: For meat preservation. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: the front view.

This application discloses a syringe assembly control method and related device to improve testing accuracy. This application embodiment is applied to a control module in a computed tomography (CT) system. The system further includes a syringe assembly. The method includes: obtaining the iodine injection flow rate of a specified iodine contrast agent; obtaining a target injection coefficient, the target injection coefficient being in the range of 1.5 to 2; calculating, based on a preset algorithm, a saline injection flow rate of physiological saline, which is proportional to the iodine injection flow rate, according to the iodine injection flow rate and the target injection coefficient; and sending an injection command including the saline injection flow rate and the iodine injection flow rate to the syringe assembly, so that the syringe assembly first injects physiological saline into the patient at the saline injection flow rate, and then injects the specified iodine contrast agent at the iodine injection flow rate.