Back to results
US 11,534,579 B2Granted
Steerable introducer sheath assembly
Assignee510 Kardiac Devices, Inc.
InventorsJaime Eduardo Sarabia, David Scott Lim, Alfred Raschdorf
Life of this patent
Estimating the term…
Abstract
An introducer sheath assembly having a handle portion including a front end and a rear end, and a introducer sheath extending outwardly from the front end of the handle portion, the introducer sheath including a device lumen configured to slidably receive a corresponding device, a guidewire lumen configured to slidably receive a corresponding guidewire, a first steering cable lumen, a second steering cable lumen, a first steering cable disposed in the first steering cable lumen and a second steering cable disposed in the second steering cable lumen, wherein the first steering cable lumen, the second steering cable lumen and the guidewire lumen are disposed radially outwardly from the device lumen.
Claims18
An introducer sheath assembly comprising:
- a handle portion including a front end and a rear end;
- a first gear assembly including a first gear having a first plurality of teeth;
- a second gear assembly including a second gear having a second plurality of teeth, and a third gear assembly including a third gear having a third plurality of teeth, wherein the first, second gear assembly, and third gear assembly are disposed in the handle portion, and the third plurality of teeth of the third gear assembly engages both the first plurality of teeth of the first gear assembly and the second plurality of teeth of the second gear assembly, and the first gear assembly, second gear assembly, and third gear assembly are configured to rotate simultaneously;
- an introducer sheath extending outwardly from the front end of the handle portion, the introducer sheath including,
- a device lumen configured to slidably receive a corresponding device,
- a first steering cable lumen, and a second steering cable lumen, and
- a first steering cable disposed in the first steering cable lumen, and a second steering cable disposed in the second steering cable lumen,
- wherein a proximal end of the first steering cable is fixed to the first gear assembly so that a portion of the first steering cable is wrapped around a portion of the first gear assembly, a proximal end of the second steering cable is fixed to the second gear assembly so that a portion of the second steering cable is wrapped around a portion of the second gear assembly, and a distal end of the first steering cable and a distal end of the second steering cable are fixed to a distal end of the introducer sheath, and
- the first gear assembly includes a cylindrical barrel portion extending outwardly from the first gear and includes a cylindrical outer surface, the second gear assembly includes a cylindrical barrel portion extending outwardly from the second gear and includes a cylindrical outer surface, and the portion of the first steering cable is wrapped around the cylindrical outer surface of the barrel portion of the first gear assembly and the portion of the second steering cable is wrapped around the cylindrical outer surface of the barrel portion of the second gear assembly.
6 more elements
An introducer sheath assembly comprising:
- a handle portion including a front end and a rear end;
- an introducer sheath extending outwardly from the front end of the handle portion, the introducer sheath including a device lumen configured to slidably receive a corresponding device, a first steering cable lumen, a first steering cable disposed in the first steering cable lumen, a second steering cable lumen, and a second steering cable disposed in the second steering cable lumen;
- a first gear assembly including a first gear having a first plurality of teeth and a first barrel portion, the first gear assembly being disposed entirely within the handle portion, a proximal end of the first steering cable being fixed to the first barrel portion of the first gear assembly so that the proximal end of the first steering cable is wrapped around the first barrel portion;
- and
- a second gear assembly including a second gear having a second plurality of teeth and a second barrel portion, the second gear assembly being disposed entirely within the handle portion, a proximal end of the second steering cable being fixed to the second barrel portion of the second gear assembly so that the proximal end of the second steering cable is wrapped around the second barrel portion;
- a drive gear assembly disposed entirely within the handle portion, wherein the drive gear assembly includes a third gear having a third plurality of teeth, wherein the third plurality of teeth engages the first plurality of teeth of the first gear assembly and the second plurality of teeth of the second gear assembly, and the first gear assembly, the second gear assembly, and the drive gear assembly are configured to rotate simultaneously.
3 more elements
An introducer sheath assembly comprising:
- a handle portion including a front end and a rear end;
- an introducer sheath extending outwardly from the front end of the handle portion, the introducer sheath including a device lumen configured to slidably receive a corresponding device;
- and
- a device locking assembly disposed at the rear end of the handle portion, including,
- an elongated stem having an outer surface including a threaded portion, and
- a proximal end extending outwardly from the rear end of the handle portion, the elongated stem defining an axially extending bore that is configured to slidably receive the corresponding device, the elongated stem being axially movable with respect to the handle portion,
- an advance knob including a threaded bore that is threadably engaged with the threaded portion of the elongated stem, the advance knob being both axially fixed and rotatable with respect to the handle portion;
- and
- a clamp disposed at the proximal end of the elongated stem outside of the handle portion, the clamp being positionable between a locked position in which the corresponding device is axially fixed with respect to the elongated stem and an un-locked position in which the corresponding device is slidable within the axially extending bore of the elongated stem,
- wherein the clamp further comprises a collet formed by the proximal end of the elongated stem so that the collet is both axially-fixed to, and non-rotatable with respect to, the elongated stem, and a locking knob defines a frustoconical bore that is engaged with the collet, and an outer surface of the collet of the elongated stem and an inner surface of the frustoconical bore of the locking knob are correspondingly threaded.
7 more elements
Dependencies are inferred from the claim text.