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US 11,439,379 B2Granted
Illuminated surgical retractor
AssigneeObp Surgical Corporation
InventorJeffrey Ralph Swift
Life of this patent
Estimating the term…
Abstract
A surgical retractor, comprising a blade having a top surface and a bottom surface, and a handle extending at an angle from a proximal end of the blade, wherein the blade and the handle are molded from a glass-fiber reinforced polymer having a flexural strength of at least 300 Mpa, and wherein the blade, being molded from the glass-fiber reinforced polymer, deforms less than 10 mm under 15 lbs of force applied thereto.
Claims20
A surgical retractor, comprising:
- a blade having a top surface and a bottom surface;
- and
- a handle;
- a deepened concave portion connecting a proximal end of the blade to the handle,
- wherein the deepened concave portion increases in depth from the proximal end of the blade toward the handle,
- wherein the blade and the handle are molded from a glass-fiber reinforced polymer having a flexural strength of at least 300 Mpa;
- and
- wherein the blade, being molded from the glass-fiber reinforced polymer, deforms less than 10 mm under 15 lbs of force applied thereto.
5 more elements
A surgical retractor, comprising:
- a blade having a top surface and a bottom surface;
- and
- a handle;
- a deepened concave portion connecting a proximal end of the blade to the handle,
- wherein the deepened concave portion increases in depth from the proximal end of the blade toward the handle,
- wherein the blade and the handle are molded from a polymer, said polymer being a low conductivity polymer and a radiolucent polymer;
- wherein said polymer has a flexural strength of at least 300 Mpa;
- and
- wherein the blade, being molded from the polymer, deforms less than 10 mm under 15 lbs of force applied thereto.
6 more elements
A surgical retractor, comprising:
- a blade having a top surface and a bottom surface;
- and
- a handle;
- a deepened concave portion connecting a proximal end of the blade to the handle,
- wherein the deepened concave portion increases in depth from the proximal end of the blade toward the handle,
- wherein the blade and the handle are molded from a low conductivity polymer,
- wherein the polymer comprises a non-conductive material that limits currents to less than 10−6 A, and
- wherein a proximal tip of the blade withstands over 30 lbs of force applied thereto.
5 more elements
Dependencies are inferred from the claim text.