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US 2012/0259364 A1Published application
Variable durometer lumbar-sacral implant
AssigneeKyphon SARL
InventorEric C. Lange
Life of this patent
Estimating the term…
Abstract
Medical devices for the treatment of spinal conditions are described herein. The medical device includes a main body that is adapted to be placed between the L5 vertebra and the sacrum so that the main body acts as a spacer with respect to the L5 vertebra and the sacrum to maintain distraction therebetween when the spine moves in extension. The main body is formed from a material having a gradual variation in modulus.
Claims15
A device, comprising:
- a front face;
- a rear face;
- an upper body portion defining an upper saddle wherein the upper body portion has a first modulus;
- a lower body portion defining a lower saddle;
- the upper body portion separated from the lower body portion by an axial plane wherein the lower body portion has a second modulus wherein the second modulus is greater than the first modulus;
- the lower body portion including a left lower lobe and a right lower lobe, each lobe being adjacent to an opposite side of the lower saddle;
- a left sidewall, a right sidewall and a sagittal plane dividing the device into a left part and a right part, the left sidewall and the right sidewall each extending from the upper body portion to the lower body portion and extending away from the sagittal plane in a direction from the upper body portion to the lower body portion such that a first distance between the left sidewall and the right sidewall adjacent to the upper body portion is less than a second distance between the left sidewall and the right sidewall adjacent to the lower body portion;
- and
- a left channel extending through the device in the left lower lobe and a right channel extending through the device in the right lower lobe.
6 more elements
A device, comprising:
- an upper body portion defining an upper saddle wherein the upper body portion has a first modulus;
- and
- a lower body portion defining a lower saddle wherein the lower body portion has a second modulus wherein the second modulus is greater than the first modulus.
A device, comprising:
- a front face;
- a rear face;
- an upper body portion defining an upper saddle;
- a lower body portion defining a lower saddle;
- the upper body portion separated from the lower body portion by an axial plane;
- the lower body portion including a left lower lobe and a right lower lobe, each lobe being adjacent to an opposite side of the lower saddle;
- a left sidewall, a right sidewall and a sagittal plane dividing the device into a left part and a right part, the left sidewall and the right sidewall each extending from the upper body portion to the lower body portion and extending away from the sagittal plane in a direction from the upper body portion to the lower body portion such that a first distance between the left sidewall and the right sidewall adjacent to the upper body portion is less than a second distance between the left sidewall and the right sidewall adjacent to the lower body portion;
- a central body portion disposed between the upper body portion and the lower body portion and between the left part and the right part;
- and
- a left channel extending through the device in the left lower lobe and a right channel extending through the device in the right lower lobe, wherein a modulus of elasticity of the device gradually varies across the device.
7 more elements
Dependencies are inferred from the claim text.