3 results about "IV injection" patented technology

The application discloses a rat fixing device based on biological evaluation of medical instruments. The device comprises an operation panel, a fixing cover, a sliding sheet and a sliding groove. A rectangular opening is designed in the center of the base of the operation panel, which is specially used for abdominal cavity injection operation of rats. The rat fixing cover is divided into four sections and is arranged on the operation panel. The two sides of the fixing cover are provided with the sliding sheets. The shape of the two sliding sheets after being spliced together is the same as that of the fixing cover. The lower end of the sliding sheet is in contact with the operation panel, and the sliding groove is arranged at the contact part. The rat fixing device can effectively adjust the size, so that rats with different body types can be effectively fixed, and the smooth operation of the test is ensured. The device is convenient to operate and stable in rat fixing.

A needleless injection port assembly includes first and second body parts and a resilient barrier received within the body. A cannula attached to the first body part is received within an internal cavity of the resilient barrier. The resilient barrier is moveable between a less axially compressed first position in which fluid flow through the injection port assembly is prevented and a more axially compressed second position in which fluid flow through the assembly is allowed. An interference fit is provided between the resilient barrier and the cannula to seal against fluid flow through the cannula when the resilient barrier is in the first position. The cannula has an internal fluid passageway with a non-circular cross section providing increased fluid flow.

A portable mouse tail vein injection restraint sleeve, including a restraint sleeve body, the left end of the restraint sleeve body is screwed with a cover, the center of the cover is provided with a through hole, the top of the restraint sleeve body is provided with a fixing mechanism, the bottom of the restraint sleeve body is provided with a supporting plate, the top left end of the supporting plate is provided with a strong light transmission lamp, the strong light transmission lamp is located on the left side of the restraint sleeve body, the bottom of the supporting plate is provided with a sliding rod, the lower part of the sliding rod is provided with a cylinder, the sliding rod can slide up and down in the cylinder, the side of the cylinder is screwed with a screw, the bottom of the cylinder is provided with a base, the supporting plate is provided with an auxiliary assembly, the auxiliary assembly contains a fixed block and a magnifying glass, the magnifying glass is provided on the auxiliary assembly, the angle of the magnifying glass can be adjusted by rotating the adjusting disc, the setting uses the magnifying glass to assist the needle tip to pierce into the blood vessel, avoids blind hitting by hand feeling, and improves the injection success rate and accuracy.