Fastening arrangement for fastening a sample holder to a force measurement device, sample holder and counterpart holder for a fastening arrangement of said type, and force measurement device having a fastening arrangement of said type
Inventors
Assignees
Interested in licensing this patent?
MTEC can help explore whether this patent might be available for licensing for your application.
Publication Number
US-12066410-B2
Publication Date
2024-08-20
Expiration Date
Abstract
A fastening arrangement fastens a sample holder to a force measuring device. The fastening arrangement has a sample holder, a counterpart holder on the side of the force measuring device. The counterpart holder has a sample holder receptable. The sample holder has a planar abutment surface and the sample holder receptacle has a flat counterpart abutment surface. The sample holder has a positioning element and a fixing element. The sample holder receptacle has a counterpart positioning element and a counterpart fixing element. The positioning element and the counterpart positioning element uniquely define a relative position between the sample holder and the counterpart holder together with the abutment surface and the counterpart abutment surface. The fixing element and the counterpart fixing element hold the sample holder and the counterpart holder against one another and force the abutment surface and the counterpart abutment surface against one another.
Core Innovation
Existing sample holders for force-measuring tower tensile and compression tests on medical hollow bodies require highly parallel and reproducible alignment of the sample relative to the slide and the force-measuring tower vertical axis, including when exchanging the samples. The fastening arrangement is intended to achieve quick release and locking while ensuring precise interchangeability, without relying on purely manual alignment.
The invention provides a fastening arrangement for fastening a sample holder to a force measuring device using a sample holder and a counterpart holder on the side of the force measuring device. The sample holder and the counterpart holder include at least one sample holder receptacle, and the sample holder and the receptacle each have planar abutment surface and planar counterpart abutment surface, respectively, which are forced against one another.
To uniquely define the relative position between the sample holder and the counterpart holder together with the abutment surface and the counterpart abutment surface, the sample holder includes at least one positioning element and one fixing element, and the sample holder receptacle includes at least one counterpart positioning element and one counterpart fixing element. One selected element is configured as a draw hook while the other selected element is designed as a latching recess, thereby holding the parts against one another and forcing full contact of the abutment surfaces.
In force measuring device embodiments, the counterpart holder includes sample holder receptacles and the fastening arrangement is used to measure tensile and/or compressive forces on medical hollow bodies. Further embodiments include forming and/or arranging a collecting reservoir for liquids on the counterpart holder, and the sample receptacles are described as clip receptacles for syringes and carpules or as abutments for high-accuracy load cells for calibration.
Claims Coverage
The partial content provides three independent claims. They center on planar abutment surfaces, positioning elements that uniquely define relative position, and a draw-hook and latching-recess fixing interface, with additional scope on a force measuring device and a collecting reservoir for liquids.
Planar abutment contact with unique relative positioning and forced clamping
A fastening arrangement for fastening a sample holder to a force measuring device, comprising planar abutment surface and planar counterpart abutment surface that are forced against one another, wherein a positioning element and a counterpart positioning element uniquely define a relative position between the sample holder and the counterpart holder together with the abutment surface and the counterpart abutment surface.
Draw hook and latching recess fixing interface
The fastening arrangement in which one element selected from the fixing element and the counterpart fixing element is configured as a draw hook, and the other element selected from the counterpart fixing element and the fixing element is designed as a latching recess, the draw hook and latching recess holding the sample holder and the counterpart holder against one another and forcing the abutment surface and the counterpart abutment surface against one another.
Force measuring device with draw-hook and latching-recess fastening
A force measuring device comprising a sample holder and a counterpart holder with planar abutment surface and planar counterpart abutment surface, positioning element and counterpart positioning element configured to uniquely define relative position, and fixing element and counterpart fixing element configured to hold the sample holder and the counterpart holder against one another and force the abutment surfaces against one another, characterized by one element being configured as a draw hook and the other being designed as a latching recess.
Counterpart holder and sample holder with collecting reservoir for liquids
A counterpart holder comprising planar counterpart abutment surface, counterpart positioning element, and counterpart fixing element, and a sample holder comprising planar abutment surface, positioning element, and fixing element for use in the fastening arrangement, characterized by one selected element being configured as a draw hook and the other selected element being designed as a latching recess, and further characterized in that a collecting reservoir for liquids is formed and/or arranged on the counterpart holder.
Across the independent claims, the claim coverage consistently relies on planar abutment surfaces forced into contact and positioning elements that uniquely define relative position, while achieving the holding action through a draw-hook and latching-recess fixing interface. One claim scopes the arrangement as a force measuring device, and another additionally characterizes a collecting reservoir for liquids on the counterpart holder.
Stated Advantages
Quick release and locking.
Precise interchangeability through uniquely defined relative position.
Precise alignment by forcing abutment surfaces into full contact using the draw hook and latching recess.
Documented Applications
Tensile and compression tests on medical hollow bodies, using the force measuring device and fastening arrangement.
Measuring tensile and/or compressive forces on medical hollow bodies with the force measuring device.
Use of the fastening arrangement with sample receptacles configured as clip receptacles for syringes and carpules.
Use of the fastening arrangement with sample receptacles configured as abutments for high-accuracy load cells for calibration.
Collecting liquids via a collecting reservoir formed and/or arranged on the counterpart holder.
Interested in licensing this patent?