Surgical device
Inventors
Siccardi, Francesco • Berberich, Sascha • Parisi, Gianluca • Lucchini, Riccardo • CAKIC, Luka
Assignees
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Publication Number
US-12285179-B2
Publication Date
2025-04-29
Expiration Date
Abstract
A surgical device comprising a handling member comprising a sleeve with a central slot and a guiding pin, a guiding element that can be slid into the central slot and externally having a guiding groove that is slidably coupled to a guiding pin, locking means configured to lock the sliding of the guiding element inside the central slot, and switchable between an activation configuration, wherein the movement of the guiding element inside said central slot is prevented, and a deactivation configuration, wherein the movement of the guiding element is free. The guiding groove comprises a first and a second rectilinear groove portion, angularly spaced apart and mutually interconnected by means of a transversal connecting groove portion interposed between said first and said second rectilinear groove portions.
Core Innovation
The invention relates to a surgical drilling guide device for orthopaedic surgery. A handling member includes a sleeve having a central slot and a guiding pin that projects radially into the central slot, and a guiding element that can be slid into the central slot and comprises a tubular cylindrical body extending along a longitudinal axis. Externally, the guiding element has a guiding groove slidably coupled to the guiding pin so that the sleeve and guiding element are mutually movable along a guiding path defined by the guiding groove.
The guiding groove includes a first and a second rectilinear groove portion angularly spaced about the longitudinal axis and mutually interconnected by a transversal connecting groove portion interposed between them. The groove extends between a first end portion defining a grip area of the guiding element and a second end portion configured to be arranged in contact with a bone of a patient. With the guiding pin received in the guiding groove, the guiding element is translatable along a sliding direction coinciding with the longitudinal axis to allow sliding of the guiding pin along the first and second rectilinear groove portions.
Upon receipt of the guiding pin within the transversal connecting groove portion, the guiding element is at least partially rotatable about the longitudinal axis of the guiding element when the guiding pin slides along the transversal connecting groove portion. The device further comprises locking means configured to lock sliding of the guiding element along the sliding direction inside the central slot, switchable between an activation configuration in which movement inside the central slot is prevented and a deactivation configuration in which movement inside the central slot is free.
Claims Coverage
The independent claim covers an orthopaedic surgical drilling guide device with three inventive features: a two-part rectilinear guiding groove connected by a transversal connecting groove portion, a slidable translation with rotational transition at the transversal portion, and switchable locking means with a safety retention function.
Two-part rectilinear guiding groove connected by a transversal connecting groove portion
The guiding groove comprises a first and a second rectilinear groove portion, angularly spaced apart about the longitudinal axis, and mutually interconnected by a transversal connecting groove portion interposed between them. The guiding groove extends between a first end portion defining a grip area and a second end portion configured to be arranged in contact with a bone of a patient.
Slidable translation along rectilinear groove portions with rotational transition at the transversal portion
The guiding element is translatable along a sliding direction coinciding with the longitudinal axis to allow sliding of the guiding pin along the first and second rectilinear groove portions, and is at least partially rotatable about the longitudinal axis when the guiding pin slides along the transversal connecting groove portion.
Switchable locking means with transversal groove portion preventing sliding during deactivation
Locking means are configured to lock sliding of the guiding element inside the central slot and are switchable between an activation configuration in which movement is prevented and a deactivation configuration in which movement is free, while the transversal connecting groove portion prevents sliding during the deactivation configuration when the guiding pin is arranged within that transversal connecting groove portion.
Claim coverage is anchored on the guiding groove geometry, the rotational transition of the guiding element when the pin is in the transversal connecting groove portion, and locking means that are switchable between activation and deactivation configurations.
Stated Advantages
Improves safety against accidental disengagement/falling by configuring the transversal connecting groove portion to prevent downward sliding during the deactivation configuration when the guiding pin is arranged within the transversal connecting groove portion.
Documented Applications
Orthopaedic surgery drilling guide use, including guiding pin travel along the guiding path and in contact with a bone of a patient for creating a tunnel.
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