A needle puncture system for automatic blood sampling

Hirokazu Saito, Kohji Mitsubayashi, Masahiro Shibata

Research output: Contribution to conferencePaper

Abstract

As a part of automatic blood sampling system, we developed equipment for needle puncture that measured force acting on the needle tip and electric impedance between inside of the needle and skin of the subject. To obtain the needle tip pierced into the blood vessel, the changes in puncture force (PF) and electric impedance (EI) were evaluated. The puncture experiments were carried out on the vein of a rabbit's ear. The PF increased gradually when the tip of the needle touched the skin. Then some peaks in PF, caused by piercing the skin and the vessel wall, were observed. When the needle punctured the vein, blood flowed into the needle and caused a short circuit of EI measurement. We have shown that the combination of PF and El will provide information to realize automatic blood vessel puncture.

Original languageEnglish
Pages419-420
Number of pages2
Publication statusPublished - 2004 Dec 1
EventChemical Sensors VI: Chemical and Biological Sensors and Analytical Methods - Proceedings of the International Symposium - Honolulu, HI, United States
Duration: 2004 Oct 32004 Oct 8

Conference

ConferenceChemical Sensors VI: Chemical and Biological Sensors and Analytical Methods - Proceedings of the International Symposium
CountryUnited States
CityHonolulu, HI
Period04/10/304/10/8

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Saito, H., Mitsubayashi, K., & Shibata, M. (2004). A needle puncture system for automatic blood sampling. 419-420. Paper presented at Chemical Sensors VI: Chemical and Biological Sensors and Analytical Methods - Proceedings of the International Symposium, Honolulu, HI, United States.