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US 12,527,640 B2Granted
Expandable holder sleeve, and tool set
AssigneeAesculap AG
InventorEda Ay-Becker
Life of this patent
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Abstract
A tool set for plug-in holding of surgical tools includes an expander holder and a retaining device. The expander holder includes fastening portions that directly cooperate with a perforated plate of the retaining device for fastening to the perforated plate and gripping around the perforated plate in a radially clamping manner such that the fastening portions axially engage behind the perforated plate material in a thickness direction of the perforated plate in a form-fitting manner.
Claims20
An expander holder of a tool set for plug-in holding of a surgical tool, the expander holder comprising:
- a plurality of clamping arms that are circumferentially spaced around a central axis, the central axis defining an axial direction, the clamping arms being elastically deformable and forming an insertion opening for insertion of the surgical tool on an open front side of the expander holder, and the clamping arms comprising engagement portions that are radially inwardly projecting in a radial direction for a force-fitting and/or form-fitting contacting of the surgical tool for holding the surgical tool;
- a catching base formed at an end portion of the expander holder opposite to the insertion opening, wherein the clamping arms extend from the catching base in an axial direction toward the open front side;
- and
- a plurality of fastening arms that are circumferentially spaced around the central axis, the fastening arms extending from the catching base in the axial direction, wherein each of the fastening arms comprises a free, radially outwardly protruding portion forming a fastening portion for form-fitting and force-fitting fastening to a retaining device of the tool set, the retaining device comprising a perforated plate,
- the protruding portions being adapted and provided to pass through a hole of the perforated plate so as to resiliently clampingly engage from radially inwardly behind the perforated plate in a thickness direction of the perforated plate,
- the fastening portions and protruding portions extending radially outwardly from the central axis such that the protruding portions form an outermost diameter of the expander holder,
- the clamping arms each having a uniform clamping arm height measured from the catching base in the axial direction,
- the fastening arms each having a uniform fastening arm height measured from the catching base in the axial direction,
- the engagement portions of the clamping arms and the fastening portions of the fastening arms being arranged at essentially the same axial height measured from the catching base in the axial direction, and
- the fastening portions extending at an angle relative to the radial direction.
7 more elements
A tool set for plug-in holding of a surgical tool, the tool set comprising:
- an expander holder comprising:
- a plurality of clamping arms that are circumferentially spaced and elastically deformable, the clamping arms forming an insertion opening for insertion of the surgical tool on an open front side of the expander holder, and the clamping arms comprising engagement portions that are radially inwardly projecting for a force-fitting and/or form-fitting contacting of the surgical tool for holding the surgical tool;
- a catching base formed at an end portion of the expander holder opposite to the insertion opening, the catching base forming an axial support surface of the surgical tool, wherein the clamping arms extend from the catching base in an axial direction toward the open front side;
- a retaining device having a first perforated plate with first holes for insertion of the surgical tool and a second perforated plate with second holes, the second perforated plate being connected to the first perforated plate and spaced parallel to the first perforated plate;
- and
- fastening portions for form-fitting and force-fitting fastening to the retaining device,
- the clamping arms, the catching base and the fastening portions being formed in one piece from a bending elastic metal, and
- the expander holder being fastened or fastenable to the retaining device in a form-fitting and force-fitting manner in such a way that the fastening portions grip around the first perforated plate and/or the second perforated plate in a radially clamping manner such that outer sides of the fastening portions axially engage behind the perforated plate in a thickness direction of the perforated plate in a form-fitting and radially-clamping manner.
5 more elements
A tool set for plug-in holding of a surgical tool, the tool set comprising:
- A) an expander holder comprising:
- i.) a plurality of clamping arms that are circumferentially spaced and elastically deformable, the clamping arms forming an insertion opening for insertion of the surgical tool on an open front side of the expander holder, and the clamping arms comprising engagement portions that are radially inwardly projecting for a force-fitting and/or form-fitting contacting of the surgical tool for holding the surgical tool;
- ii.) a catching base formed at an end portion of the expander holder opposite to the insertion opening, wherein the clamping arms extend from the catching base in an axial direction toward the open front side;
- and
- iii.) fastening portions, and
- B) a retaining device having a first perforated plate with first holes for insertion of a tool and a second perforated plate with second holes, the second perforated plate being connected to the first perforated plate and spaced parallel to the first perforated plate,
- the expander holder being fastened or fastenable to the retaining device in a form-fitting and force-fitting manner by the fastening portions in such a way that the fastening portions grip around the first perforated plate and/or the second perforated plate in a radially clamping manner such that the fastening portions axially engage behind the perforated plate in a thickness direction of the perforated plate in a form-fitting manner, and
- at least one of the first holes and/or the second holes having separation crosspieces that are radially inwardly projecting and form a form-fitting anti-turn device for the fastening portions.
5 more elements
Dependencies are inferred from the claim text.