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Biomedical subjects

A G Frenkel'

Publications and source records attributed to A G Frenkel'.

5 recordsLinked to original sources
PubMedDate not supplied

[Development of atraumatic microneedles for use in ophthalmology].

Measurement of the force interaction of the microneedle with the pierced material helps quantitatively estimate the microneedle functional characteristics and cut down the time for control. Flat microneedles with a trihedral point require the least pricking effort; the use of such needles is most desirable in suturing solid biological tissues (cornea, sclera, etc.). Experimental samples of Soviet ophthalmologic microneedles are not inferior to foreign ones. Employment of a mathematical model helps select the optimal combinations of the values of the geometrical parameters that will provide the least pricking effort.

Microsurgery↗
PubMedDate not supplied

[Determining the puncture force of microneedles using a digital recording complex].

Measurement of power interaction of a microneedle with test-material permits to obtain a quantitative estimation of microneedle functional characteristics and to make the time of control of one needle 10 times as less in comparison with the traditional method of control by means of microscopes. The estimation of microneedles functional characteristics with the help of the offered device is confirmed by the results of clinical trials. It is advisable to use flat microneedles with triangular cutting end for dense biological tissues sewing together.

Equipment Design↗