A New Tractor for Obstetric Forceps

Pendulun Leverage of the Obstetric Forceps

A New Lithotomy Forceps

^ By Suuoeon John O'Neill, M. D., M. Ch., Civil Surgeon, Shahpur. Forty miles distant from the shallt>ur Sadr is the village of Nowshera, approached by a road which in its last twenty miles runs a rough and uneven course over the hilis. Last winter, while inspecting the dispensary there, a man suffering from stone entreated me to afford him relief. He was in a pitiable condition, and could only...

a new approach to credibility premium for zero-inflated poisson models for panel data

هدف اصلی از این تحقیق به دست آوردن و مقایسه حق بیمه باورمندی در مدل های شمارشی گزارش نشده برای داده های طولی می باشد. در این تحقیق حق بیمه های پبش گویی بر اساس توابع ضرر مربع خطا و نمایی محاسبه شده و با هم مقایسه می شود. تمایل به گرفتن پاداش و جایزه یکی از دلایل مهم برای گزارش ندادن تصادفات می باشد و افراد برای استفاده از تخفیف اغلب از گزارش تصادفات با هزینه پائین خودداری می کنند، در این تحقیق ...

A new BB forceps.

Retained intraocular BBs are difficult to remove. According to manufacturers' specifications, BBs have a spherical diameter of 4.5 mm and a copper plate covering a steel core. They have only moderate magnetic properties because of the copper plate cover and they are too large to be grasped by almost all intraocular forceps and, therefore, present a problem when they are retained in the eye afte...

The Chamberlen family (1560-1728) and obstetric forceps.

The invention of obstetrics forceps in the 17th century represented a critically important technical advance in the management of childbirth. It was particularly timely in that the new disease, rickets, was becoming widespread and with it, dystocia due to pelvic deformity. The story of the forceps is bound up with five generations of the Chamberlen family (fig 1). Peter Chamberlen, later known ...