Hinge construction for hingably connecting device members to one another, in particular for a speculum
a technology of hinge construction and device member, which is applied in the field of hinge construction for hinge connecting device member to one another, can solve the problems of failure to meet the requirements of use, the construction of the hinge is not stable, and the patient is under examination, and the examining medical person is at risk of breaking under load in use conditions, etc., to achieve the effect of reducing the risk of fracture, and reducing the risk of patien
Active Publication Date: 2021-04-29
BRIDEA IP
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The proposed hinge construction effectively absorbs axilateral forces, providing stability and low-friction movement while minimizing material usage and size, thus enhancing safety and usability in medical applications.
Problems solved by technology
The hinge constructions proposed in said references lack stability, and involve a risk of breaking under load in use conditions.
Failure during use may injure a patient under examination, and / or the examining medical person.
Also, a need exists to reduce the overall hinge size to avoid excess material usage and a large cumbersome hinge construction design that could obstruct or interfere with the intended use.
Method used
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Embodiment Construction
[0087]FIGS. 1a and 1b each depict a schematic diagram of a hinge construction 100, and schematically indicate structures, forces and moments in such a hinge construction 100.
[0088]The hinge construction 100 hingably connects a first member 101 to a second member 102. The first member 101 and the second member 102 are indicated by solid lines, and they are rotatable relative to each other, as indicated by double arrows 103, about an axis of rotation 104 having an axial direction. The hinge construction 100, the first member 101 and the second member 102 can take various shapes, depending on an actual product. As an example, below an embodiment of a surgical instrument, in particular a speculum, comprising the hinge construction 100 will be described. However, the hinge construction 100 can be applied in a large variety of products.
[0089]The hinge construction 100 comprises a first bearing structure 110, a second bearing structure 120, and a third bearing structure 130 (FIG. 1a), and ...
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A hinge construction hingably connects a first member and a second member which are rotatable about an axis of rotation having an axial direction. A first bearing structure comprises first and second support structures having cylinder surface segment shaped first and second bearing surfaces at a radial distance from the axis of rotation, and configured to slidingly engage each other. Second and third bearing structures comprise third, fourth, fifth and sixth support structures having third, fourth, fifth and sixth bearing surfaces, the third and fourth bearing surfaces, and the fifth and sixth bearing surfaces configured to slidingly engage each other to absorb a force having a force component in the axial direction. A fourth bearing structure comprises seventh and eighth support structures having cylinder surface segment shaped seventh and eighth bearing surfaces at a radial distance from the axis of rotation, and configured to slidingly engage each other.
Description
FIELD OF THE INVENTION[0001]The invention relates to the field of hinge constructions for hingably connecting device members to one another, and more specifically to a hinge construction adapted for a speculum, for hingably connecting speculum members to one another.BACKGROUND OF THE INVENTION[0002]In some hinge constructions whereby two members of a device are hingably connected for rotation around an axis of rotation, having an axial direction, over an angle of less than 360° relative to each other, the hinge construction may be subjected to forces acting on each one of the device members in a plane through the axis of rotation towards the axis of rotation or away from the axis of rotation at an angle to the axial direction, having a force component along a line at right angles to the axial direction. Herein, such forces will be referred to by the expression axilateral forces.[0003]As an example, axilateral forces are generated in a specific type of speculum, which sometimes is re...
Claims
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IPC IPC(8): A61B1/32F16C11/04
CPCA61B1/32F16C11/04A61B1/0052A61B1/303
InventorROELOFFS, BOB
OwnerBRIDEA IP