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Obesity Surgery

Screw-for-lumbar-sacral-fixator

Convertible thermal blanket

In accordance with the invention, an inflatable, self-erecting thermal blanket includes one or more ...

Multifunctional devices having loop configured portions and collection systems for endoscopic surgical procedures and methods thereof

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Second stage scuba diving regulator

In the present invention, when the second stage regulator thereof is unpressurized, such as in ...

Microwave hyperthermia probe

OF THE PREFERRED EMBODIMENT Referring to FIG. 1, a microwave probe 10 is constructed from a ...

Steerable catheter with rotatable tip electrode and method of use

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Apparatus for manually forming containers into portable packs

OF THE EMBODIMENT As illustrated in FIG. 3, a paperboard carrier blank 2 is laid onto a base 1 ...

External fixator for repairing fractures of distal radius and wrist

The present invention is a bone fixator for repairing fractures of the distal radius and wrist. It ...

Electrical connection device

The parent applications referred to above describe certain advances which have been made toward ...

Flexible tube clamp

The present invention is a clamp having upper and lower clamping members, a hinge biasing the ...

Ostomy device

I claim: 1. In an ostomy device having a drainage sleeve provided with a flexible connecting neck ...

Screw for lumbar-sacral fixator

Details

Inventors: Tornier, Alain;
Assignee: Tornier SA (Saint-Ismier, FR)
Primary Examiner: Pellegrino; Stephen C.
Assistant Examiner: Markow; Scott B.
Attorney, Agent or Firm: Dowell & Dowell

A screw for a lumbar-sacral fixator for use on the spine wherein the screw comprises a threaded part and a head which has a notched surface which is inclined with respect to an elongated axis of the screw by an angle of approximately 30.degree. to 45.degree..

DETAILED DESCRIPTION The pedicular screw according to the invention comprises a threaded part and a semi-spherical head which is provided with a notched surface inclined with respect to the axis of the screw by an angle .
alpha.
of about 30.
degree.
to 45.
degree.
with respect to the vertical axis.
The threaded part of the pedicular screw is provided with a conical core of equal resistance comprising sharp threads over the whole length of the threading.
The head of the pedicular screw is provided with a tapped, opening hole which is perpendicular to the notched surface so as to be able to join the connecting stems on the pedicular screws by means of a bolt.

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