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Puncture device

A standby position, moving body technology, applied in blood sampling devices, medical science, sensors, etc., can solve problems such as large pain

Inactive Publication Date: 2006-04-19
ARKRAY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the pain during puncturing will be increased due to the position to be punctured and the amount of air inflow inside the contact portion 98.

Method used

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Examples

Experimental program
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Embodiment Construction

[0034] figure 1 The illustrated lancing device 1A is used with a lancet 2 attached thereto. The lancet 2 has a form in which a needle portion 20b is made of, for example, metal, and a body portion 20a is made of, for example, a synthetic resin, protruding from a body portion 20a. For example, when forming the main body part 20a, the needle part 20b is integrated with the main body part 20a by insert molding.

[0035] The lancing device 1A includes a housing 3 , a lancet holder 4 , an operating post 5 , a cartridge 6 and an electric pump 7 .

[0036] The housing 3 accommodates the lancet holder 4 therein. The casing 3 includes through holes 30 , 31 , 32 , protrusions 33 , 34 , a decompression space 35 and a contact portion 36 . Through hole 30 such as Figure 2A As shown, it is used to exhaust the air inside the decompression space 35 . Through hole 31 such as image 3 It is used when the air inside the contact part 36 is exhausted as shown. Through hole 32 as from figu...

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PUM

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Abstract

A puncture device (1A), comprising a mobile body (4) for moving a needle part (20b) in a forward movement direction (N1) from a standby position to a puncture position and a contact part (36) brought into contact with a portion (S) to be punctured. The puncture device (1A) is formed, when holding the mobile body (4) at the waiting position, to act a suction force on the mobile body (4) and move the mobile body (4) in a backward moving direction. The puncture device (1A) further comprises a reduced pressure space (35) depressurized to act the suction force on the mobile body (4). The puncture device (1A) is desirably formed to move the mobile body (4) in the backward moving direction by reducing a pressure in the reduced pressure space (35) by a specified value or more less than the atmospheric pressure.

Description

technical field [0001] The present invention relates to a puncturing device for piercing the skin with a needle when taking body fluid or tissue such as blood. Background technique [0002] As a puncturing device for taking blood from the skin, a mobile body holding a needle is accommodated inside a housing, and the needle is advanced together with the mobile body through a predetermined operation to puncture the skin (for example, refer to Japanese Patent Laid-Open No. 11-206742 Publication No. 2001-515377 and Japanese Patent Application Publication No. 2001-515377). In the puncturing device, in order to promote liquid to come out after puncturing, make the skin hyperemic, and expand the wound caused by puncturing, adopt the method of applying negative pressure on the skin (for example, refer to Japanese Patent Application Laid-Open No. 2001-515377). [0003] The puncturing device disclosed in Japanese Patent Application Laid-Open No. 11-206742 is configured to advance a n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/15
CPCA61B5/1411A61B5/15186A61B5/150022A61B5/150099A61B5/150412A61B5/15113A61B5/15117A61B5/1519A61B5/15194A61B5/150503
Inventor 坂田哲也松本大辅小室秀文
Owner ARKRAY INC
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