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US 2026/0207361 A1Published application
Loading system for a stent device
OwnerNinon Rouxinventor
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OwnerNinon Rouxinventor
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The present invention pertains to the field of loading systems for a stent device for a prosthetic heart valve, in particular for tricuspid or mitral prosthetic heart valves, for providing the stent device, preferably comprising a prosthetic heart valve, in a predefined collapsed state, as may be required for deployment and/or use with a catheter. Accordingly, a loading system for collapsing a stent device for a prosthetic heart valve into a predefined state is suggested, comprising a guiding device (10) and a first biasing device (22). The guiding device (10) comprises an open cavity (16) defined by a wall and configured to receive a longitudinal end portion of the stent device, wherein a diameter of the cavity (16) increases from a longitudinal end of the cavity (16) defining an opening (18) to an opposing longitudinal end of the cavity (16), and a first cylindrical portion (12) defining a through-hole having a predefined inner diameter and extending from said opening (18) in a longitudinal direction away from the cavity (16). The first biasing device (22) is configured to accommodate the first cylindrical portion (12) and comprises a coupling mechanism (34) for coupling the first biasing device (22) to the stent device received in the cavity (16) and a biasing mechanism, wherein the biasing mechanism is configured to bias a portion of the stent device into the through-hole via the cavity (16) and the opening (18) in the coupled state of the stent device.
A loading system for collapsing a stent device for a prosthetic heart valve into a predefined state, comprising
A loading system for collapsing a stent device for a prosthetic heart valve into a predefined state, comprising
The loading system according to any of the preceding claims, wherein the cavity (16) has a conical or parabolic shape in a longitudinal section of the cavity (16) and/or has a rotationally symmetrical shape along a longitudinal axis defined by the cavity (16).
The loading system according to any of the preceding claims, wherein an inner surface of the wall defining the cavity (16) and an outer surface of the wall are similarly shaped and/or essentially extend in parallel in a longitudinal section of the cavity (16).
The loading system according to any of the preceding claims, wherein the diameter of the opening (18) and the inner diameter of the through-hole are equal.
The loading system according to any of the preceding claims, wherein a length of the first cylindrical portion (12) in the longitudinal direction is configured to only accommodate a first inner portion of the stent device.
The loading system according to any of the preceding claims, wherein the guiding device (10) and the first biasing device (22) are configured to bias the stent device into an intermediate collapsed state.
The loading system according to any of the preceding claims, wherein the guiding device (10) comprises a retention surface (14) configured to engage a surface of the first biasing device (22) and to maintain a position of the guiding device (10) relative to a portion of the first biasing device (22).
The loading system according to any of the preceding claims, wherein the first biasing device (22) is configured to provide a longitudinal biasing force to the stent device.
The loading system according to any of the preceding claims, wherein the sleeve component (24) comprises a support surface (20) configured to provide a mechanical coupling with the guiding device (10) in the assembled state.
The loading system according to any of the preceding claims, wherein the coupling mechanism (34) comprises at least one retention groove, cut-out, and/or recess configured to secure a coupling element (36) of the stent device in a form-fitting manner at least in the longitudinal direction away from the cavity (16).
The loading system according to any of the preceding claims comprising a second biasing device (40) configured to receive an opposing longitudinal end of the stent device and/or to receive a portion of the stent device in an intermediate collapsed state.
The loading system according to any of the preceding claims, configured for collapsing a stent device comprising a prosthetic heart valve, preferably a tricuspid or mitral heart valve.
Dependencies are inferred from the claim text.