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Devices for the administration of drugs and vaccines in the form of injectable needles

A technology of syringes and injection needles, which is applied in the directions of drug devices, syringes, automatic injectors, etc., can solve the problems of injectable needles that cannot be injected and high economic costs.

Inactive Publication Date: 2013-10-16
艾哲拜欧有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A drawback of this design is that the injectable needle cannot inject at any great depth
This can be a serious problem in the administration of drugs that require greater injection depths, as in the case of most vaccines where the optimum depth is between 10mm and 25mm
Furthermore, the complex instruments to which this invention is committed can be reused through interchangeable head pieces, but presumably at high economic cost

Method used

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  • Devices for the administration of drugs and vaccines in the form of injectable needles
  • Devices for the administration of drugs and vaccines in the form of injectable needles
  • Devices for the administration of drugs and vaccines in the form of injectable needles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: Injection of an injectable needle made of a calcium salt through a syringe comprising a mechanism for automatic retraction of the injection rod and deactivation of the device.

[0031] as attached Figure 1A The samples shown in -G were fitted with injectable needles based on a cement mixture consisting of 0.7 g of tetracalcium phosphate [Ca 4 PO 4 o 2 ] and 1.8 g calcium hydrogen phosphate [CaHPO 4 ] in 1ml of 0.5M disodium phosphate [Na 2 HPO 4 ] in the reaction. This mixture was made to contain crystal violet as a sample agent. Before hardening, the mixture was introduced into a Teflon tube with an inner diameter of 0.4 mm and an outer diameter of 1.57 mm, which was used as a mold, and the mixture was lightly pressed with a concave piston to form a sharp point.

[0032] Subsequently, the needle container hardened in the mold was introduced into the 1.57 mm orifice on the head of the injection instrument. The operation of the injector is capable of i...

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Abstract

The present disclosure refers to hand operated disposable devices for the administration of drugs, vaccines and other medicaments in the form of solid injectable needles. The devices incorporate mechanisms for the automatic retraction of the injection rod even when the user continues to exert pressure on the device. The devices can incorporate an injectable needle in a sheath or cartridge that facilitates its manufacture and manipulation. These injection devices can only be used once and their use results in a change of configuration that renders them non operational and prevents contact with parts that have been exposed to the patient's tissues.

Description

technical field [0001] The present invention relates to manually operated disposable devices for administering pharmaceuticals and vaccines in the form of solid injectable needles. The device can replace traditional needle and syringe devices and avoid the need for reconstitution, refrigeration and trained personnel during the administration of drugs and vaccines. Background technique [0002] Many medicines and vaccines are administered parenterally by injection by medically trained personnel. This includes: the first step, reconstitution of the drug with sterile water for injection; the second step, filling the appropriate amount of the dissolved drug into the syringe; the third step, assembling the sterile needle for injection, and the fourth step, passing the injection Administering medications to patients; and, as a final step, safely disposing of used devices. This injection process can be problematic, especially in resource-limited geographic locations. Specificall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/20
CPCA61M37/0069
Inventor 阿尔卡迪奥·加西亚德卡斯特罗安德鲁斯
Owner 艾哲拜欧有限公司