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Dissoluble microneedle injecting device

An injection device and micro-needle technology, applied in the directions of micro-needles, hypodermic injection devices, needles, etc., can solve the problems of user discomfort, difficulty in controlling drug release speed and drug load, etc.

Pending Publication Date: 2018-12-07
游学秋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: the base of the existing microneedle film is integrated with the microneedle. After the microneedle penetrates the skin, the hard base must be pressed on the skin surface, and it can be peeled off only after the drug injection is completed. Substrate, which brings discomfort to the user, and it is not easy to control the release rate and drug loading of the drug

Method used

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  • Dissoluble microneedle injecting device
  • Dissoluble microneedle injecting device
  • Dissoluble microneedle injecting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A dissolvable microneedle injection device, including a propulsion device, an injection substrate 2 and a dripping device, the injection substrate 2 is used to fix a microneedle film 1 for injection, the microneedle film 1 includes a microneedle base and microneedles on the microneedle base, The microneedle film 1 is fixed on the back of the injection substrate 2, and the injection substrate 2 is a combination of a water-permeable sheet 2-1 and a water-absorbent sheet 2-2, and the water-absorbent sheet 2-2 is located on the back of the water-permeable sheet 2-1. The water-permeable sheet 2-1 is permeable through the water-permeable holes 2-1-1 on the water-permeable sheet 2-1, and the water-absorbent sheet 2-2 is made of a water-absorbable material. The propulsion device is used to push the injection substrate 2 to pierce the microneedle into the site to be injected. The dripping device is used to drip water to the injection substrate 2. The aqueous solution passes throu...

Embodiment 2

[0062] Example 2, such as figure 1 and 2 Shown:

[0063] A dissolvable microneedle injection device, including a propulsion device, an injection substrate 2 and a dripping device, the injection substrate 2 is used to fix a microneedle film 1 for injection, the microneedle film 1 includes a microneedle base and microneedles on the microneedle base, The microneedle film 1 is fixed on the back of the injection substrate 2, and the injection substrate 2 is a combination of a water-permeable sheet 2-1 and a water-absorbent sheet 2-2, and the water-absorbent sheet 2-2 is located on the back of the water-permeable sheet 2-1. The water-permeable sheet 2-1 is permeable through the water-permeable holes 2-1-1 on the water-permeable sheet 2-1, and the water-absorbent sheet 2-2 is made of a water-absorbable material. The propulsion device is used to push the injection substrate 2 to pierce the microneedle into the site to be injected. The dripping device is used to drip water to the inj...

Embodiment 3

[0071] Example 3, such as image 3 , 4 , 5, 6, 7, 8 and 9:

[0072]A dissolvable microneedle injection device, including a propulsion device, an injection substrate 2 and a dripping device, the injection substrate 2 is used to fix a microneedle film 1 for injection, the microneedle film 1 includes a microneedle base and microneedles on the microneedle base, The microneedle film 1 is fixed on the back of the injection substrate 2, and the injection substrate 2 is composed of a water-permeable sheet 2-1 alone, and the water-permeable sheet 2-1 is permeable through the water-permeable holes 2-1-1 on the water-permeable sheet 2-1. The front and back of the water permeable sheet 2-1 have a flow diversion channel 2-1-2 communicating with the water permeable hole 2-1-1, which evenly guides the aqueous solution passing through the water permeable sheet 2-1 to the entire microneedle base. The propulsion device is used to push the injection substrate 2 to pierce the microneedle into t...

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Abstract

The invention relates to a dissoluble microneedle injecting device. The device comprises a pushing device, an injecting base plate and a water dripping device, the injecting base plate is used for fixing a microneedle thin membrane for injection, and the microneedle thin membrane comprises a microneedle base and a microneedle on the microneedle base; the microneedle thin membrane is fixed to the back surface of the injecting base plate, the injecting base plate can be permeable or hydrophilic, and the pushing device is used for pushing the injecting base plate to make the microneedle punctureinto a to-be-injected part; the water dripping device is used for making water drip on the injecting base plate, a water solution dissolves the microneedle base of the microneedle thin membrane by penetrating through the injecting base plate, or the injecting base plate absorbs the microneedle base, dissolved by the water solution, of the microneedle thin membrane. The device has the advantages that the dissoluble microneedle thin membrane is connected with the injecting base plate capable of being permeable or hydrophilic, after the microneedle punctures into the skin, the water dripping device dissolves the microneedle base connected with the injecting base plate, the separated microneedle still remains in the skin and controllably dissolves and releases internal active substances, and the microneedle injecting administration of the accurate dosage is achieved.

Description

technical field [0001] The invention relates to a dissolvable microneedle injection device. Background technique [0002] Transdermal drug delivery is widely used as an effective way for drug delivery because it can avoid the degradation of polymers in the gastrointestinal tract and is convenient to use. Conventionally, external preparations containing medicinal ingredients have been used in order to subcutaneously exert pharmacological effects of the medicinal ingredients. As such external preparations, liquid preparations, ointments, cream preparations, adhesive tape preparations, patches, poultices, etc. are known, and by applying or sticking them locally, the medicinal ingredients are absorbed percutaneously and subcutaneously exert the expected pharmacological effect. However, the above-mentioned external preparations in the form of coating or sticking have the following disadvantages: due to the barrier function of the skin, the medicinal ingredients cannot be suffic...

Claims

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Application Information

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IPC IPC(8): A61M37/00
CPCA61M37/0015A61M2037/003A61M2037/0046A61M2037/0023
Inventor 游学秋曹小平夏铮
Owner 游学秋
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