46 results about "Arterial puncture" patented technology

The invention discloses an arteriovenous simulation method and device for puncture teaching. Two latex tubes are arranged on the simulation arm to simulate arterial blood vessels and venous blood vessels respectively, and a diaphragm pump is used to extract simulated blood from a liquid storage container, and pump After the simulated blood passes through the first latex tube, it flows through the throttle valve and then enters the second latex tube. Finally, the simulated blood returns to the liquid storage container through the second latex tube to form simulated blood. Circulatory system; by controlling the intermittent start and stop of the brushless DC motor to drive the diaphragm pump, the first latex tube shrinks and expands intermittently, thereby realizing the simulation of human pulse beating; after the simulated blood passes through the throttle valve, it decreases without The process of expansion and contraction is realized, so that the second latex tube realizes the simulation of human veins; when puncture teaching is required, the syringe needle can be inserted into the two latex tubes on the simulated arm to realize arterial puncture and venous puncture respectively simulation training.

An artery stabilizer device, which is held in place by a technician over a targeted artery using just one or two fingertips of the technician's hand, is provided for stabilizing the artery while the user inserts the needle of a syringe into the artery. A pair of stabilizer fingers, which protrude from the bottom surface of a finger-hold platform, hold the artery in place while the needle is inserted into the artery distal the tips of the stabilizer fingers. In one embodiment, a gauze pad is attached beneath the finger-hold platform, allowing the user to quickly apply a dressing over the wound created by the needle puncture. Another embodiment provides a needle guide between extended stabilizer fingers for stabilizing the needle during the arterial puncture. Each embodiment creates an augmented pulse at the targeted needle insertion site, making it easier for the technician to palpate the pulse there. Arterial line insertions can also be facilitated using this invention.

The invention relates to the technical field of medical equipment, in particular to a device for fixing an arterial puncture indwelling needle and a method for fixing the indwelling needle. The device comprises a forearm support plate and a forearm fixing strip, wherein the front end and the rear end of the forearm support plate are in outer arc shapes, and the front end of the forearm support plate is further connected with a wrist fixing strip. The left side and the right side of the forearm support plate are respectively provided with a fixing frame, the fixing frame is divided into a first puncture area and a second puncture area through a cross rod from up to down, and the upper end of the fixing frame is respectively and correspondingly provided with a group of lock buckles. The left side and the right side of the forearm are respectively and correspondingly provided with a group of lock strips which are matched with the lock buckles. The invention mainly solves the technical problem of failure monitoring caused by the movement of the wrist of the patient and the displacement of the indwelling needle, eliminates the hidden dangers and ensures the life safety of the patient.

An object of the present invention is to provide a blood purification device capable of reliably avoiding extracorporeal circulation of blood of a patient in a blood circuit in a state where a puncture needle for puncturing a blood vessel is poorly punctured. The invention relates to a blood purification device, which comprises: a blood circuit (1), the blood circuit can make the blood of a patient undergo extracorporeal circulation; a dialyzer (2), the dialyzer pair in the blood circuit (1) The flowing blood is purified, and the blood purification device includes a pressure change applying mechanism, which can control the front end of the blood circuit (1) in the state where the arterial side puncture needle (a) and the venous side puncture needle (b) are not connected. Positive pressure or negative pressure is applied; pressure change detection mechanism, which can detect the front end of the blood circuit (1) to which positive pressure or negative pressure is applied by the pressure change application mechanism and the arterial side puncture needle punctured in the patient (a) The pressure change at the front end of the blood circuit (1) when it is connected to the venous side puncture needle (b); the judging mechanism (11), which can judge according to the pressure change detected by the pressure change detecting mechanism Whether the puncture status of the arterial side puncture needle (a) and vein side puncture needle (b) is good.