Instruments for use in the Treatment of Certain Intracranial Vascular Lesions

Clamps A and B to be described here are the first in a series of four with which we have been experimenting over a period of years in an effort to solve some of the problems presented by patients with intracranial aneurysms and other vascular anomalies. Clamp A has been used here and in other neurosurgical clinics over a period of three years, and now we believe it has been perfected to the degree tha t it can be recommended to others. Clamp B has been used for a shorter period of time, but long enough for us to know tha t it can be extremely useful in the t rea tment of some of the more difficult intracranial vascular lesions. Clamp C, for external control of blood flow through the intracranial port ion of the internal carotid artery, and Clamp D, for gradual occlusion (external) of end arteries such as the middle cerebral, are in the experimental stage, bu t indications are tha t they will be worth-while additions to our a rmamentar ium.