Suction control attachment for ultrasonic aspirators

Egemen, Nihat

doi:10.3171/jns.1992.77.2.0316

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…Further modifications and improvements followed, and the ultrasonic aspirator became an important instrument for the removal of brain tumors. 1,[3][4][5][6]10,16 Thus, the application of an ultrasonic aspirator in neuroendoscopic procedures could effectively contribute to expand indications for neuroendoscopic procedures.…”

Section: Discussionmentioning

confidence: 99%

Ultrasonic aspiration in neuroendoscopy: first results with a new tool

Oertel

Krauss

Gaab

2008

JNS

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Neuroendoscopic techniques are often considered inapplicable to lesion resection because most lesions are too large for effective endoscopic resection in an appropriate time frame. To evaluate the potential of ultrasonic aspiration in neuroendoscopic procedures, the authors developed a new handpiece for endoscopic application. The instrument was subsequently tested in 10 cadaveric pig brains and applied in 5 clinical cases. In the pig brain, a precise and accurate aspiration of ventricular ependyma and brain parenchyma was obtained. Clinically, the device was applied in 3 patients with obstructive hydrocephalus, and via an endonasal transsphenoidal approach in 2 patients with pituitary macroadenomas. In all cases, the lesion was effectively aspirated without complications. Ultrasonic aspiration can be applied safely and successfully in selected endoscopic procedures. The use of this technique could expand the indications for endoscopic approaches to include intraventricular lesions and in minimally invasive transsphenoidal endonasal approaches.

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Section: Discussionmentioning

confidence: 99%

Ultrasonic aspiration in neuroendoscopy: first results with a new tool

Oertel

Krauss

Gaab

2008

JNS

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“…Suction units that are uncontrollable in terms of amount of suction they exert can significantly injure vascular and neural tissues (Sundt et al, 1991). Provision of a simple in-built universal regulatory suction control permitting safer intermittent suction has been proposed by Egemen (1992).…”

Section: Suctionmentioning

confidence: 99%

High-power low-frequency ultrasound: A review of tissue dissection and ablation in medicine and surgery

OʼDaly

Morris

Gavin³

et al. 2008

Journal of Materials Processing Technology

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Ab s t r a c t High-power low-frequency ultrasound in the range 20-60 kHz has wide ranging clinical applications in surgical and medical instruments for biological tissue cutting, ablation or fragmentation, and removal. Despite widespread clinical application and common device operating characteristics, there is an incomplete understanding of the mechanism of tissue failure, removal and damage. The relative contribution of cavitation, direct mechanical impact and thermal effects to each process for specific tissue types remains unclear. Different and distinct mechanisms and rates of tissue removal are observed for interaction with soft and hard tissue types. Device operating parameters known to affect the interaction include frequency, peak-peak tip amplitude, suction and application time. To date, there has been little analysis of the effect of variations in, and interactions of, these parameters on tissue removal and damage for individual biological tissue types. Potential controllable damage mechanisms occurring in tissues include alteration in global biomechanical properties, histomorphological changes, protein denaturation and tissue necrosis. This paper presents a critical review of the literature on the clinical application, mechanism of tissue interaction, removal and residual tissue damage. It describes known mechanisms for distinct tissue types.

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