Non-gravity type suspension-avoiding transfusion device

Abstract

The invention discloses a non-gravity type suspension-avoiding transfusion device. The technical scheme is characterized in that the non-gravity type suspension-avoiding transfusion device comprises a tube body, wherein a tube cap and a needle holder are arranged at two ends of the tube body; a piston is glidingly arranged in the tube body; a core bar for driving the piston to slip is arranged in the tube body; a first spring is arranged between the piston and the tube cap and is longer than the tube body; a liquid extracting assembly for extracting liquid medicine from a medicine bottle or a transfusion assembly for transfusing a human body is detachably connected onto the needle holder. During the transfusion, the liquid medicine can be extracted from the medicine bottle through the liquid extracting assembly firstly, then the transfusion assembly is mounted on the needle holder, and transfusion is performed on the human body. All that is required is to replace a corresponding needle, dosing or transfusing operation can be realized, an additional liquid adding needle tube is not required, the liquid medicine is absorbed into the tube body from the medicine bottle very conveniently, and the normal transfusion function cannot be influenced; dosing holes are omitted, so that the tube body is very simple in structure, the manufacturing cost is greatly reduced, and the non-gravity type suspension-avoiding transfusion device is possibly applicable to large-scale popularization.

Description

technical field [0001] The invention relates to an infusion device, more specifically, it relates to a non-gravity type free-hanging infusion device. Background technique [0002] Infusion sets are commonly used disposable medical consumables, mainly used for intravenous infusion. The existing infusion set has the following disadvantages during use: first, because the infusion set must be used in conjunction with the infusion bottle, the medicinal liquid is contained in the infusion bottle, and the infusion set itself only has the function of guiding the medicinal liquid into the blood circulation of the human body, so the infusion The function of the syringe is single and inconvenient to use. Although the syringe in the current medical device has the function of guiding the liquid into the human body and containing the liquid, the syringe is usually used for intramuscular injection, and the volume of the liquid in the syringe is small. The time is generally within one minu...

AI Technical Summary

Problems solved by technology

The existing infusion set has the following disadvantages during use: first, because the infusion set must be used in conjunction with the infusion bottle, the medicinal liquid is contained in the infusion bottle, and the infusion set itself only has the function of guiding the medicinal liquid into the blood circulation of the human body, so the infusion The function of the syringe is single and inconvenient to use. Although the syringe in the current medical device has the function of guiding the liquid into the human body and containing the liquid, the syringe is usually used for intramuscular injection, and the volume of the liquid in the syringe is small. The time is generally within one minute, and the pressure of the liquid medicine in the syringe comes from the manual push of the plunger of the syringe by the medical staff, but the infusion is usually intravenous drip, and the drip time is generally tens of minutes, so the existing syringe cannot be used directly in infusion medicine

[0004] However, in actual use, there are the following problems: the existing infusion set has a hose sleeved on the needle base, and since the hose is sleeved on the needle base, the connection strength between the hose and the needle base is not high , the hose is very easy to drop from the needle seat, and in the prior art, when you want to add the liquid medicine to the hose, you need to use an additional liquid filling syringe, and the liquid medicine is injected from the medicine bottle through the liquid filling syringe After the internal suction, the liquid medicine is added into the needle tube through the dosing hole, which is very troublesome for dosing; in addition, due to the need to add the dosing hole and the corresponding supporting structure, the tube body structure of the infusion set is very complicated, which increases the degree of difficulty in processing , the cost of mold opening is very high, resulting in the high price of the infusion set, which does not meet the conditions for large-scale promotion; finally, the limit pins in the prior art are set independently and have no relationship with the infusion set. During use, the limit pin is very easy to lose. After the loss, the core rod cannot be limited through the limit pin hole. Manual limit is required during use, which is very troublesome

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