Back to results
US 9,848,862 B2Granted
Retractor blade assembly
AssigneeTedan Surgical Innovations, LLC.
InventorsDaniel Bass, Thomas T. Terramani, Adam B. Young
Life of this patent
Estimating the term…
Abstract
A retractor blade assembly includes an arm member, blade connector and a retractor blade having stem member provided at the top of the blade. The stem member includes a first pin member, provided at an upper portion of the stem member. The first pin member has at least one abutment extending outward from the stem member, a first groove provided below the first pin member, a second groove provided below the first groove, provided about the circumference of the stem member, a second pin member having at least one abutment extending from the second groove. The blade connector cooperatively engages the stem member permitting the retractor blade to operate in a rotatable mode and a locked mode.
Claims20
A retractor blade assembly, comprising:
- an arm member;
- a retractor blade a having stem member provided at a top of the blade, the stem member including a first pin member, provided at an upper portion of the stem member, having at least one abutment extending outward from the stem member, a first groove provided below the first pin member, provided about the circumference of the stem member, a second groove provided below the first groove, provided about the circumference of the stem member, a second pin member having at least one abutment extending from the second groove,
- a blade connector including a body including a first aperture and at least one notch, both extending from a top surface of the body through a bottom surface of the body and configured to receive insertion of the stem member therein, the blade connector further including a second aperture extending from a side wall into an interior of the body in communication with the first aperture, and a locking assembly provided in the second aperture configured to selectively engage the first groove and the second groove of the stem member in an inserted position;
- wherein when the stem member of the retractor blade is inserted in the first aperture in a first position, the locking assembly engages the first groove of the stem member, the first pin member is located above the top surface of the blade connector and the second pin member is located below the bottom surface of the blade connector, permitting the stem member and connected retractor blade to rotate, wherein when the stem member of the retractor blade is in a second position, the locking assembly engages the second groove of the stem member preventing vertical movement of the stem member, and at least one of the abutments of the second pin member is located in at least one of the notches of the blade connector, thereby locking the blade member in a locked position.
1 more element
A retractor blade assembly, comprising:
- an arm member;
- a retractor blade having outer edges which define a first plane and a stem member provided at a top of the blade, the stem member including a first pin member, provided at an upper portion of the stem member, the first pin member having at least one abutment extending outward from the stem member and parallel to the first plane, a first groove provided below the first pin member, provided about the circumference of the stem member, a second groove provided below the first groove, provided about the circumference of the stem member, a second pin member having at least one abutment extending from the second groove substantially perpendicular to the first plane,
- a blade connector including a body including a first aperture and at least one notch, both extending from a top surface of the body through a bottom surface of the body and configured to receive insertion of the stem member therein, the blade connector further including a second aperture extending from a side wall into an interior of the body in communication with the first aperture, and a locking assembly provided in the second aperture configured to selectively engage the first groove and the second groove of the stem member in an inserted position;
- wherein when the stem member of the retractor blade is inserted in the first aperture in a first position, the locking assembly engages the first groove of the stem member, the first pin member is located above the top surface of the blade connector and the second pin member is located below the bottom surface of the blade connector, permitting the stem member and connected retractor blade to rotate, wherein when the stem member of the retractor blade is in a second position, the locking assembly engages the second groove of the stem member preventing vertical movement of the stem member, and at least one of the abutments of the second pin member is located in at least one of the notches of the blade connector, thereby locking the blade member in a locked position.
1 more element
Dependencies are inferred from the claim text.