Intradermal needle, packaged product thereof, and injection device

A technology for injection devices and intradermal needles, which can be used in the direction of hypodermic injection devices, needles, and other medical devices, and can solve problems such as needle tip puncture users by mistake

Active Publication Date: 2020-04-17
TERUMO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the needle point of the intradermal needle is always exposed, and the needle point of the needle tube may accidentally puncture the user after the drug is administered or when the injection device is discarded.

Method used

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  • Intradermal needle, packaged product thereof, and injection device
  • Intradermal needle, packaged product thereof, and injection device
  • Intradermal needle, packaged product thereof, and injection device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0031] The intradermal needle 10 of the present embodiment is as figure 1 As shown, the intradermal needle (medical needle) 10 is housed in a packaging body 12 that is individually packaged and provided as a product. The intradermal needle 10 is sealed within the package 12 until use so as to remain sterile.

[0032] The package 12 has a container 70 for housing the intradermal needle 10 and a sealing member 72 for closing the container 70 . The sealing member 72 is peeled off from the container 70 by the user during use, so that the intradermal needle 10 can be taken out of the container 70 .

[0033] The container 70 is formed in a cylindrical shape with a space inside, and its bottom surface 74 is formed in a circular shape that is slightly larger than the diameter of the diameter-enlarged portion 30 of the hub 16 . In addition, the cylindrical wall 76 standing up from the bottom surface 74 in the axial direction of the intradermal needle 10 is also formed to have an inne...

no. 2 Embodiment approach

[0078] The intradermal needle 10A of the second embodiment will be described below. It should be noted that the internal structure of the needle hub 16 of the intradermal needle 10A is the same as that of the reference Figure 5 The internal structure of the described intradermal needle 10 is the same, so illustration is omitted. In addition, in the intradermal needle 10A, with reference to Figure 1 to Figure 6 The same components of the described intradermal needle 10 are assigned the same reference numerals, and detailed description thereof will be omitted.

[0079] Intradermal needle 10A as Figure 7 As shown, the protector 90 is stored in the package 12A at the open position where the cover body 96 of the protector 90 is brought close to the axis of the needle hub 16, and is provided as a product. The package 12A includes a container 70 having a storage space for accommodating the intradermal needle 10A, and a sealing member 72 that seals the container 70 . The contai...

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PUM

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Abstract

Provided are: an intradermal needle (10) having a protector (80) that can be displaced from an open position near a needle hub (16) to a closed position at which the protector covers the needle tip (14a); a packaged product (12); and an injection device (18). The protector (80) is provided with: an arm (84) that is provided closer to the base end than a wide diameter part (30) of the intradermal needle (10) and is rotatably supported by an axis pin (89); and a lid (86) supported by the arm (84). Since the rotation axis of the protector (80) is positioned near the needle hub (16), the protector(80) can be stored compactly in the open position with the lid (86) positioned close to the needle hub (16).

Description

technical field [0001] The present invention relates to an intradermal needle used for injecting a drug into a living body, a package thereof, and an injection device. Background technique [0002] Conventionally, intradermal needles have been proposed for injecting medicines into the upper layer of the skin. The intradermal needle has a structure in which the protruding length of the needle tube is 3 mm or less so that the needle tip of the needle tube stays in the upper layer of the skin in advance. As described above, since the protruding length of the needle tube is very short, the intradermal needle has a structure that is less prone to erroneous punctures than ordinary hypodermic injection needles. However, the needle point of the intradermal needle is always exposed, and the needle point of the needle tube may puncture the user by mistake after the drug is administered or when the injection device is discarded. [0003] In order to solve such a problem, Internationa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/32
CPCA61M5/3216A61M5/002A61M5/3293A61M2209/06A61M2005/3217A61M5/3202A61M5/3221A61M2005/3226
Inventor 中岛健太郎岩濑阳一郎
Owner TERUMO KK
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