Surgical instrument
AssigneeDeam Holding B.V.
InventorJulien Serge Scheltes
Life of this patent
Estimating the term…
Abstract
Disclosed is a surgical instrument with an elongate body with a longitudinal axis having a distal end and a proximal end. The instrument has a pitch capstan having an axis transversely to the longitudinal axis at one end of the elongate body. At least two pairs of cables extend along the elongate body, along the pitch axis to a respective work member to which they are attached. The cables are guided in sliding contact along a slide bearing situated at or near the pitch axis. Also disclosed is a handle for a medical instrument having a hinging connection with the elongate body situated near an inside hand region of the user.
Claims20
A surgical instrument comprising:
- an elongate body with a longitudinal axis, having a distal end carrying a work member that is hingeable around a distal pitch axis and around a distal transverse axis, and a proximal end carrying a handle member having a finger support part and a thumb support part that are mutually attached in a hinge point and connected to the body via a hinging connection comprising
- a proximal pitch axis,
- a proximal pivot axis,
- a proximal pinch curved-surface cable actuating device and a proximal pivot curved-surface cable actuating device both rotatable about the proximal pivot axis and in relation to the proximal pitch axis, and
- a pinch lever rotatable about a hinge point axis, the pinch lever being connected to the proximal pinch curved-surface cable actuating device,
- the finger support part being curved and configured to support fingers of a user, the thumb support part being configured to support a thumb of the user, the finger and thumb support parts defining a gripping area each with a fingertip region near respective free ends of the finger and thumb support parts and an inside hand region near the hinge point that, in use, is disposed between the joint of the thumb and an index finger of the fingers of the user,
- wherein the handle member is configured to pivot around the proximal pitch axis, thereby pivoting the work member around the distal pitch axis,
- the handle member is configured to pivot around the proximal pivot axis, thereby pivoting the work member around the distal transverse axis, and
- the hinging connection that includes the proximal pitch axis and the proximal pivot axis is situated in the inside hand region, the proximal pitch axis being more proximal than free ends of the finger and thumb support parts that are spaced at a distance from the hinge point, the hinge point being more proximal than the proximal pitch axis and the proximal pivot axis of the hinging connection.
Dependencies are inferred from the claim text.