Frequency characteristics of pressure transducer kits with inserted pressure-resistant extension tubes.
The accurate monitoring of arterial blood pressure is important for cardiovascular management. However, the frequency characteristics of pressure transducer kits are influenced by the length of the pressure-resistant tube. To date, there have been few studies addressing the frequency characteristics...
| Publicado en: | Journal of Clinical Monitoring & Computing Vol. 31; no. 2; pp. 371 - 381 |
|---|---|
| Autores principales: | , , , , , , , , , , |
| Formato: | equations & formulas pictorial research tables/charts Journal Article |
| Publicado: |
Springer Nature
Apr2017
|
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=121743098&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 121743098 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 13871307 OHC jtl: Journal of Clinical Monitoring & Computing issn: 13871307 maglogo: N pubinfo: dt: Apr2017 vid: 31 iid: 2 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 121743098 121743098 NLM26946147 121743098 10.1007/s10877-016-9854-4 NLM26946147 121743098 ppf: 371 ppct: 10 formats: fmt: @attributes: type: P tig: atl: Frequency characteristics of pressure transducer kits with inserted pressure-resistant extension tubes. aug: au: Fujiwara, Shigeki Mori, Satoshi Tachihara, Keiichi Yamamoto, Takeshi Yokoe, Chizuko Imaizumi, Uno Morimoto, Yoshinari Miki, Yoichiro Toyoguchi, Izumi Yoshida, Kazu-ichi Yokoyama, Takeshi affil: Department of Anesthesiology, Graduate School of Dentistry , Kanagawa Dental University , 82 Inaoka-cho Yokosuka 238-8580 Japan sug: subj: Transducers Blood Pressure Determination Equipment and Supplies Equipment Design Blood Pressure Blood Pressure Determination Methods Pressure Signal Processing, Computer Assisted Models, Statistical Reproducibility of Results Human ab: The accurate monitoring of arterial blood pressure is important for cardiovascular management. However, the frequency characteristics of pressure transducer kits are influenced by the length of the pressure-resistant tube. To date, there have been few studies addressing the frequency characteristics of pressure transducer kits with inserted pressure-resistant extension tubes (pressure-resistant extension tube (ET) circuits). In this study, we examine ET circuits from the viewpoint of the frequency characteristics of pressure transducer kits. DT4812J transducer kits (length 150 cm; Argon Medical Devices, TX, USA) were used. Three original ET circuits were prepared, with the pressure-resistant tube of the DT4812J being extended with a 30-cm length of pressure-resistant tube (180ET circuit), a 60-cm length of pressure-resistant tube (210ET circuit), and a 90-cm length of pressure-resistant tube (240ET circuit). Each of these circuits was evaluated as part of this study. The natural frequency of the original DT4812J circuit was 45.90 Hz while the damping coefficient was 0.160. For the 180 ET circuit, the natural frequency and damping coefficient were 36.4 Hz and 0.162, respectively. For the ET210 circuit, the natural frequency and damping coefficient were 30.3 Hz and 0.175, respectively. For the ET210 circuit, the natural frequency and damping coefficient were 25.3 Hz and 0.180, respectively. As a result of extending the circuit, it was found that the natural frequency decreased drastically, while the damping coefficient increased slightly. When the extension of a pressure transducer kit is required, we should pay careful attention to the major decrease in the natural frequency, which may influence the pressure monitoring. pubtype: Academic Journal doctype: equations & formulas pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|