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Disposable full-closed dosing needle

A fully-sealed, drug-dosing needle technology, applied in the field of medical supplies, can solve the problems of liquid medicine leakage, easy contamination of the piston, and increased drug pollution, and achieve the effects of simple structure, convenient use, and reduced drug loss

Inactive Publication Date: 2013-02-27
于英华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The syringe piston of this dosing method is easy to be polluted, and the needles have repeatedly pierced the stoppers of the medicine bottle and the liquid bottle, and the external air injected into the medicine bottle and the needles exposed to the air all increased the probability of drug contamination when the medicine liquid was sucked. Because the needle of the existing dosing equipment is too long, in order to ensure that all the liquid medicine in the medicine bottle is sucked out, it is necessary to adjust the depth of the needle piercing the rubber stopper of the medicine bottle, and sometimes there are phenomena such as the needle coming out, the medicine liquid leaking out, and the remaining amount being lost. , not only can not ensure the sterility of the needle, but also it is difficult to ensure the accuracy of clinical drug dosage

Method used

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  • Disposable full-closed dosing needle
  • Disposable full-closed dosing needle
  • Disposable full-closed dosing needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In this embodiment, the dosing operation of a medicine bottle and a liquid bag (solvent bag) or a soft liquid bottle with a pressure difference inside is taken as an example. figure 1 —— figure 2 It can be seen that the dosing needle in this embodiment is composed of a type A dosing needle 1 and a dosing hose 3, each of the two ends of the dosing hose 3 is equipped with a dosing needle of A type with a liquid outlet hole on the side, A The length of the type dosing needle 1 is 1.0 to 1.2 cm; it is suitable for adding medicine to medicine bottles below 10ml (the medicine bottles themselves have negative pressure) and liquid bags below 250ml.

[0019] When in use, first insert the A-type dosing needle 1 at one end of the fully-sealed dosing needle dosing hose 3 into the rubber plug 7 of the liquid bag, invert the liquid bag, and then insert the A-type dosing needle at the other end of the dosing hose 3. The medicine needle is inserted into the medicine bottle 8, so that...

Embodiment 2

[0021] from image 3 It can be seen that the difference between this embodiment and Embodiment 1 is that the dosing needle in this embodiment is a B-type dosing needle with a liquid outlet hole at the top, which is also suitable for medicine bottles below 10ml with negative pressure and 250ml medicine bottles. The following liquid bag dosing; the length of the B-type dosing needle pierced into the rubber stopper of the medicine bottle 8 is 0.6-0.8cm, and the length of the B-type dosing needle pierced into the rubber stopper of the liquid bottle is 0.8-1.0cm, so as to ensure the needle's safety. The end hole just passes through the rubber plug and is located on the inner surface of the rubber plug (that is, at the bottom of the liquid medicine when the bottle is inverted), ensuring that the residual amount of the liquid medicine is zero.

Embodiment 3

[0023] In this embodiment, the medicine bottle and liquid bottle (solvent bottle) or liquid bag with no internal pressure difference are taken as an example. Figure 4 It can be seen that, different from Embodiment 1 and Embodiment 2, the fully-sealed dosing needle of this embodiment is composed of a dosing needle, a dosing hose 3 and a pressure-regulating scalp needle; Type A dosing needle; the pressure-regulating scalp needle includes a pressure-regulating needle 4 and a hose 5, one end of the hose 5 is provided with a syringe connector 6, and the other end is equipped with a pressure-regulating needle 4 with a length of 3.0-3.5 cm, and the pressure-regulating needle The outlet hole of 4 is located at the side of the needle.

[0024] Dosing operation see Figure 5 , first use the dosing hose 3 with dosing needles at both ends to connect the medicine bottle and the liquid bottle or the liquid bag (this step is the same as in Example 1), the syringe connector 6 of the hose 5 ...

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Abstract

The invention belongs to the technical field of medical articles, in particular to a disposable full-closed dosing needle. Clinically, an injector is normally used in dosing operation for intravenous drip, and the probability of medicine contamination is increased when the plunger of the injector is contaminated during dosing, the needle pierces the plugs of medicine bottles and liquid bottles for multiple times, the outside air is injected into the medicine bottle as liquid medicine is sucked and the needle is exposed in the air. In the technical scheme of the invention, the disposable full-closed dosing needle comprises dosing needles and a soft dosing tube or the dosing needles, the soft dosing tube and a pressure-regulating scalp needle; the dosing needles are mounted on both ends of the soft dosing tube, and are a type A dosing needle with a side hole and a type B dosing needle with an end hole; and the pressure-regulating scalp needle comprises a pressure-regulating needle and a soft tube. The disposable full-closed dosing needle is applicable to the dosing operation of all rubber plug type medicine bottles, liquid bottles and the like, and utilizes the difference between the pressure in a medicine bottle and the pressure in a liquid bag and the aseptic air to carry out the dosing process under the closed state, thus decreasing the probability of medicine contamination.

Description

technical field [0001] The invention belongs to the technical field of medical supplies, in particular to a disposable fully-sealed medicine-feeding needle suitable for rubber-stopped medicine bottles, liquid bags, and liquid bottles. Background technique [0002] In clinical practice, in order to reduce the pollution of drugs during intravenous drip treatment, a fully enclosed infusion method is often used. However, in the operation of adding drugs, the sealed bottled drugs are mixed with bottled or bagged glucose, saline and other solvents. , medical staff usually use a syringe to extract a small amount of solvent from the liquid bag, inject it into the medicine bottle to dissolve the drug, and then pump out the drug solution (often pump some air into the medicine bottle) and add it to the liquid bag. The syringe piston of this dosing method is easy to be polluted, and the needles have repeatedly pierced the stoppers of the medicine bottle and the liquid bottle, and the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61J1/20
Inventor 于英华
Owner 于英华
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