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Injection needle unit and liquid injection device

A technology of liquid injection and injection needle, which is applied in the directions of instruments, needles, pressure infusion, etc. introduced into the body, which can solve the problems of large size of equipment and so on.

Inactive Publication Date: 2016-10-26
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Regarding this point, in the liquid injection device (microneedle injection device) described in Patent Document 1, the thickness of the cylindrical frame forming the flow path toward the microneedle is relatively thick, and the volume of the device is relatively large. There is a problem in the convenience of use in the state of the living body

Method used

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  • Injection needle unit and liquid injection device
  • Injection needle unit and liquid injection device
  • Injection needle unit and liquid injection device

Examples

Experimental program
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no. 1 approach ＝

[0038] ===First Embodiment===

[0039]

[0040] In this embodiment, the liquid injection device 1 used in the insulin injection therapy method will be described as an example.

[0041] Figure 1A , Figure 1B , figure 2 , image 3 , Figure 4A , Figure 4B A configuration example of the liquid injection device 1 according to the present embodiment is shown.

[0042] Figure 1A is a perspective view of the liquid injection device 1 viewed from above, Figure 1B It is a perspective view of the liquid injection device 1 viewed from below. and, figure 2 It is a cross-sectional view when the internal structure of the liquid injection device 1 is viewed from the side, image 3 It is a cross-sectional view when the internal structure of the liquid injection device 1 is seen from above. It should be noted that, in the figures, the X-axis, Y-axis, and Z-axis represent directions in order to clarify the positional relationship of each component in each figure. direction) i...

no. 2 approach ＝

[0078] === Second Embodiment ===

[0079] In the first embodiment described above, the indwelling needle 110 is configured to supply liquid from the flow path 110B formed at the distal end. The difference from the first embodiment is that in this embodiment, the indwelling needle 110 is configured to be more suitable for injecting insulin. It should be noted that, in this embodiment, configurations other than the indwelling needle 110 are the same as those of the liquid injection device 1 according to the first embodiment, and therefore descriptions of these configurations are omitted.

[0080] Below, refer to Figure 8 , Figure 9 , Figure 10 A configuration example of the liquid injection device 1 according to the present embodiment will be described. Figure 8 is in the same way as the first embodiment Figure 7 The side view of the indwelling needle 110' is cut at the corresponding position. and, Figure 9 A state in which the indwelling needle 110' punctures the a...

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PUM

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Abstract

An injection needle unit includes a plurality of injection needles, a plate-shaped member that has a first surface for holding a proximal portion of the plurality of injection needles, and a lid member that is disposed so as to face a second surface which is a back surface of the first surface of the plate-shaped member. The plate-shaped member has a first groove which connects a supply tube for supplying the liquid to the second surface and a second groove which distributes the liquid to the plurality of injection needles. The lid member has a third groove in a region where the first groove and the second groove face each other.

Description

technical field [0001] The present invention relates to an injection needle unit and a liquid injection device. Background technique [0002] In recent years, continuous subcutaneous insulin infusion therapy (CSII therapy) has attracted attention as a method for treating diabetes. The continuous subcutaneous insulin infusion therapy is a therapy method in which the patient punctures an indwelling needle (cannula) subcutaneously by himself, and continuously injects insulin from a portable liquid supply device through the indwelling needle. Against this background, various liquid injecting devices that are easily available are being studied. For example, Patent Document 1 discloses a microneedle injection device that injects a medical solution into a living body and includes three microneedles. [0003] 【Prior technical literature】 [0004] 【Patent Literature】 [0005] Patent Document 1: Japanese PCT Publication No. 2005-527249 [0006] A liquid injection device is a devi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/158A61M5/142A61M5/168
CPCA61M5/14228A61M5/14248A61M5/158A61M5/16804A61M5/16813A61M2205/3331A61M5/3298A61M2005/14252A61M2005/14268A61M2005/1585A61M2005/1586A61M5/142
Inventor 百濑嘉彦
Owner SEIKO EPSON CORP