A simple device for injection of small calibrated amounts of horseradish peroxidase into the cerebral cortex

A simple device for injecting horseradish peroxidase into the cerebral cortex is described. It consists of a syringe connected by tubing to a hydraulic adaptor which provides a sealed connection to a disposable glass micropipette. Replaceable micropipettes may be prepared by drawing capillary glass under heat to a fine diameter tip that provides easy penetration into the cortex without dimpling the surface grey matter or damaging the underlying white matter. The hydraulic seal achieved by the adaptor allows volumes of the order of 0.05 μl to be readily injected into nervous tissue.     

Segmental artery occlusion for sequential renal injuries. A case report

We report on a patient who experienced life-threatening haemorrhages in 1974 and 1980 after receiving stab wounds to the same kidney. Treatment by means of segmental artery occlusion was successful. Nephrectomy would have been necessary to control exsanguinating bleeding in both instances. Successful evasion of nephrectomy on two occasions for trauma to the same kidney has not been reported previously.