Broach handle for a rasp and surgical device comprising said handle
Inventors
Siccardi, Francesco • Laude, Frederic • Bernardoni, Massimiliano • TROMBETTA, Christian • Rossi, Ermete
Assignees
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Publication Number
US-12419652-B2
Publication Date
2025-09-23
Expiration Date
Abstract
A broach handle for a rasp includes a proximal part extending along a first axis between a first portion of the handle and a second portion of the handle, and a proximal part extending partially along a second axis between a third portion of the handle, connected to the second portion, and a fourth portion of the handle, and partially along a third axis between a fifth portion of the handle, connected to the fourth portion, and a sixth portion of the handle connectable to a rasp. The sixth portion of the handle has a connection surface for connecting to the rasp having a normal extending along a normal axis defining a connection axis between the handle and the rasp. A first convex angle is defined between the first axis and the second axis, and a second convex angle is defined between the third axis and the normal axis.
Core Innovation
The invention describes a surgical device comprising a broach handle and a rasp, with the handle formed by proximal and distal parts extending along multiple axes. Convex surfaces define the handle geometry, and the rasp connects to the distal part. The claims cover coplanar-axis and skew-portion configurations, reversible or irreversible rasp connections, and a broach handle with a planar abutment surface configured to be struck by a percussion element.
The described problem is interference with the patient's pelvis and abdomen during femoral-canal rasping, as well as the need for femoral release. The handle geometry is intended to permit femoral-canal rasping without femoral release and to reduce interference. The document also states that the device is intended to reduce incision size, trauma, and operating time.
Claims Coverage
The independent claims comprise six inventive features across claims 1, 5, 20, 21, 22, and 23, covering surgical devices with a broach handle and rasp, including irreversibly connected configurations, and broach handles for a rasp.
Coplanar multi-axis handle with convex surfaces
Claim 1 covers a broach handle with proximal and distal parts extending along specified axes, first and second convex surfaces, and a connection surface for the rasp. The first, second, and third axes and the normal axis of the connection surface lie on the same placement plane; the proximal-part inclination angle ranges from 0° to 45°.
Skewed handle with oppositely directed convex surfaces
Claim 5 covers a broach handle with proximal and distal parts, a first convex surface and a second convex surface turned in the opposite direction, and a skew portion transverse to the second and third axes. The handle connects to the rasp, and the proximal-part inclination angle ranges from 0° to 45°.
Irreversibly connected rasp and coplanar handle geometry
Claim 20 covers a rasp irreversibly connected to a broach handle for preparation of a femoral canal. The rasp is configured to be inserted into a femur, and its prevailing extension axis, together with the first, second, and third handle axes, lies on the same placement plane.
Irreversibly connected rasp with a skew portion
Claim 21 covers a rasp irreversibly connected to a broach handle for preparation of a femoral canal. The handle has proximal and distal parts, a first convex surface, and a skew portion extending between distal portions along an axis transverse to the second and third axes.
Broach handle with a percussion abutment surface
Claim 22 covers a broach handle with proximal and distal parts, first and second convex surfaces, a connection surface for the rasp, and an abutment head with a planar surface configured to be struck by a percussion element. The normal axis of the abutment surface is parallel to the normal axis of the connection surface.
Broach handle with a percussion abutment surface and skew portion
Claim 23 covers a broach handle with proximal and distal parts, first and second convex surfaces, a connection surface for the rasp, and an abutment head with a planar surface configured to be struck by a percussion element. It also includes a skew portion transverse to the second and third axes.
The independent claims define multi-axis broach-handle geometry with convex surfaces and a rasp connection, with alternative coplanar and skewed configurations. They also cover irreversible rasp connection for femoral-canal preparation and broach handles having a percussion abutment surface.
Stated Advantages
The handle geometry is intended to reduce interference with the patient's pelvis and abdomen.
The device permits femoral-canal rasping without femoral release.
The device is intended to reduce incision size, trauma, and operating time.
Documented Applications
Preparation of a femoral canal using a rasp configured to be inserted into a femur.
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