Publication

Adjustable fixation system for neurosurgical devices

Jean-Philippe Thiran, Rémi Charrier
2012
Patents

Abstract

The system comprises at least a support (5) to be attached to a patient by fixing means (4), said support having an outer thread (7), a first nut (9) with an inner thread (11 ) cooperating with said outer thread (7) and an anchor having a spherical bottom end (10) being placed between said support and said nut, a spherical head (15) said spherical bottom end and head being linked by a shaft, a second nut (16) having an inner thread (17) and intended to be screwed on an external device having a corresponding thread (31 ), such as a platform (20) or a surgical device (30), whereby the tightening of at least one of the nuts (9,16) on the support and/or on the external device allows to block the position of the anchor.

Official source

https://infoscience.epfl.ch/entities/publication/8dda9497-d69d-469f-be95-1d215cddcdab

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Jean-Philippe Thiran, Rémi Charrier
2012
Patents

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/8dda9497-d69d-469f-be95-1d215cddcdab

About this result

Related concepts (26)

Screw thread

A screw thread, often shortened to thread, is a helical structure used to convert between rotational and linear movement or force. A screw thread is a ridge wrapped around a cylinder or cone in the form of a helix, with the former being called a straight thread and the latter called a tapered thread. A screw thread is the essential feature of the screw as a simple machine and also as a threaded fastener. The mechanical advantage of a screw thread depends on its lead, which is the linear distance the screw travels in one revolution.

Screw

A screw and a bolt (see Differentiation between bolt and screw below) are similar types of fastener typically made of metal and characterized by a helical ridge, called a male thread (external thread). Screws and bolts are used to fasten materials by the engagement of the screw thread with a similar female thread (internal thread) in a matching part. Screws are often self-threading (also known as self-tapping) where the thread cuts into the material when the screw is turned, creating an internal thread that helps pull fastened materials together and prevents pull-out.

Bolted joint

A bolted joint is one of the most common elements in construction and machine design. It consists of a male threaded fastener (e. g., a bolt) that captures and joins other parts, secured with a matching female screw thread. There are two main types of bolted joint designs: tension joints and shear joints. In a tension joint, the bolt and clamped components of the joint are designed to transfer an applied tension load through the joint by way of the clamped components by the design of a proper balance of joint and bolt stiffness.

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Adjustable fixation system for neurosurgical devices

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