Why does orthopedic electric drill have different rotational speeds?
Posted on2015-05-22
When we sell medical electric drills, we find that many customers feel unreasonable why electric drills have different rotational speeds. Why there are different rotational speeds ?
Orthopedic electric drills are classified according to the different surgical sites and surgical procedures. (For example, cranial drill and cranial bur are mainly used for cranial operation.) Thus there will be different requirements for rotational speed. Take acetabulum reaming drill as an example, we not only have to cut the damaged joint but also have to polish and straighten the resection surface when we do the arthroplasty surgery. And the rotational speed we use can’t be too fast-better from 0-400 revolutions per minute. The bone will be burned and necrotic if the rotational speed is too fast. We all know that the speed and torque of the rated power are inversely proportional to the torque. If the rotational speed is too fast, the strength of the cross section will be small. Such medical drill can only complete a deep drill and can’t complete the grinding. Therefore, acetabulum reaming drill is also called “slow drill”. On the contrary, bone drill is mainly used in the trauma operation of the plate screws and orthopedic drilling. In real surgery, large torque is not needed but faster speed is needed. So the requirement of rotational speed is from 0 to 1100 revolutions per minute.
The above are only two examples which explain why orthopedic electric drills have different rotational speeds. Shanghai bojin Electric Instrument & Device Co., Ltd will study the rotational speed when they produce and develop electric drills. Different kinds of electric drills will have different rotational speeds according to the actual needs of surgeries and the experimental results of the bier. We want to make sure when doctors do the surgeries, they will not damage patients’ bones. And we also want our customers to know more about our products when they buy our orthopedic electric drills.