Abstract：
:An ultrasonic aerosol generator constructed from a domestic humidifier is described which has been used to produce liquid aerosols for physiological investigations. The instrument was constructed from a Pifco domestic humidifier modified to include an energy guide to direct the oscillations of the transducer through the coupling water, which would normally be aerosolized, onto a small membrane based sample chamber containing the liquid to be aerosolized. The size distribution of the aerosol produced was found to be between 2 and 6 mm, optimum for diffuse intrapulmonary deposition. Up to 4 ml/min of aqueous liquid was used; however the sample chamber could be made small enough to contain economic amounts of expensive material to administer by inhalation. The instrument has proved to be reliable over a period of three years.
journal_name
Med Eng Physjournal_title
Medical engineering & physicsauthors
Davies A,Hudson N,Pirie Ldoi
10.1016/1350-4533(95)97320-osubject
Has Abstractpub_date
1995-07-01 00:00:00pages
387-9issue
5eissn
1350-4533issn
1873-4030pii
1350-4533(95)97320-Ojournal_volume
17pub_type
杂志文章abstract：:In robotic and conventional minimally invasive surgery the risk of complications caused by collateral tissue damage remains high. This paper studies the concept of imposing damage thresholds on surgical instruments to avoid tissue overload. More specifically, the correlation between mechanical loading and damage in ca...
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journal_title：Medical engineering & physics
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