Injection device with voice prompt function

Abstract

The invention relates to an injection device with a voice prompt function. The injection device comprises an injector and a signal indicator, wherein the signal indicator comprises a controller, a first switch, a second switch and an indication unit; the first switch is electrically connected with the input end of the controller; when a piston tube is in contact with a piston, the first switch acts and can send a signal to the controller; the second switch is electrically connected with the input end of the controller; when the piston is pushed to the bottom of a needle tube by the piston tube, the second switch acts and can send a signal to the controller; the indication unit is electrically connected with the output end of the controller; the controller sends an injection starting signalto the indication unit according to the signal output by the first switch; and the controller sends an injection finishing signal to the indication unit according to the signal output by the second switch, so that the indication unit can send out prompt information of injection starting and injection finishing, and the prompt information is fed back to a user in real time; the working reliabilityis high.

Description

technical field [0001] The invention belongs to the technical field of medical appliances, and in particular relates to an injection device with a sound prompt function. Background technique [0002] The most common way of administering the drug is by injection, eg intravenously, subcutaneously or intramuscularly, a syringe containing the drug is used for the injection, which is usually administered by trained healthcare personnel. In some cases, where regular injections of medication are required, it may be desirable for a patient or other individual to use a syringe to self-inject or give injections to other individuals, and devices for automatic injections have been developed to allow patients to self-inject. [0003] However, since patients are usually neither nurses nor educated in medical devices, such devices for automatic injection must prove to be simple and safe to use. Therefore, it is important for the user to be informed that the product has been injected, has ...

AI Technical Summary

Problems solved by technology

[0005] This injection training device reminds the user of the progress of the injection through the sound of the impact between the parts, but it can only remind the user that the injection is completed or the injection is over, and does not have the function of warning or alarm; and it cannot monitor the injection process. Inadvertently pick up the injection device from the skin without hearing the sound of injection completion, and the doctor or user does not know which injection process the specific injection pen is currently in

[0006] In addition, the device can only be used for training. If it is used as a real syringe, there will be many problems: 1. The first sounding part is connected with the piston rod. The speed of the injection hits the bottom wall of the bar groove. Since the injection simulation component moves synchronously with the first sounding part in the initial state, the injection simulation component will also quickly move down and hit the piston in the needle tube. The moving speed Too fast will cause the needle tube (not shown in the figure, the tube body of the injection simulation assembly can be movably inserted in the needle tube) to rupture; if in order to prevent the needle tube from breaking, the injection simulation assembly cannot run too fast, but the first sounding part It is very likely that no sound will be produced when it hits the strip groove. In short, the sound production of the above patent is related to the running speed of the injection simulation component. It is difficult to ensure the sound production without destroying the needle tube; 2. In order to prevent the needle from being exposed, More parts need to be installed to prevent the movable sleeve from moving up, resulting in more parts involved and high failure rate

Images