A flexible, multi-lumen brachytherapy device includes a plurality of loose lumens extend through a hub towards a single point of attachment at a distal rigid section. Because the lumens are attached at only a single distal location, the lumens are free to move axially and rotatably, thereby increasi
A flexible, multi-lumen brachytherapy device includes a plurality of loose lumens extend through a hub towards a single point of attachment at a distal rigid section. Because the lumens are attached at only a single distal location, the lumens are free to move axially and rotatably, thereby increasing the overall flexibility of the device to thereby decrease intermittent device movement while increasing patient comfort. A novel keyed stylet can be selectively inserted to increase the rigidity of the device as needed. The ability to dynamically modify the rigidity of the brachytherapy device provides a comprehensive brachytherapy solution that satisfies concerns of the patient, the surgeon and the radiologists.
대표청구항▼
1. An implantable apparatus for treating a proliferative disorder in a patient comprising: a rigid member fixed at a distal end of the apparatus, the rigid member having a proximal end, a distal end and a plurality of openings within an interior of the rigid member extending longitudinally from a pr
1. An implantable apparatus for treating a proliferative disorder in a patient comprising: a rigid member fixed at a distal end of the apparatus, the rigid member having a proximal end, a distal end and a plurality of openings within an interior of the rigid member extending longitudinally from a proximal end of the rigid member towards a distal end of the rigid member such that access to the plurality of openings is solely at the proximal end of the rigid member and the distal end of the rigid member;an inflatable member enveloping at least a portion of the rigid member, the inflatable member spaced apart from a proximal end of the apparatus such that the inflatable member does not envelop the proximal end of the apparatus;a plurality of separate dosing lumens, each having a proximal end and a distal end, wherein each distal end of each dosing lumen extends into a different one of the plurality of openings of the rigid member and wherein the rigid member provides a sole, fixed attachment point for securing the plurality of dosing lumens to the apparatus at the distal end of the apparatus and for restricting movement of the plurality of dosing lumens at the sole attachment point about any degree of freedom relative to the apparatus;a hub disposed remote from the rigid member and positioned between the distal ends and proximal ends of the dosing lumens, the hub having a hole extending therethrough sized to slideably accommodate the plurality of dosing lumens to thereby allow individualized movement of the plurality of dosing lumens through the hub; anda keyed stylet configured to removably connect the rigid member to the hub such that the rigid member is fixed rotationally with the hub. 2. The implantable apparatus of claim 1, further comprising an adhesive, disposed on the distal end of at least one dosing lumen for affixing the dosing lumen to the rigid member. 3. The implantable apparatus of claim 1, wherein the inflatable member encases the rigid member. 4. The implantable apparatus of claim 3, further comprising an inflation lumen having a proximal end and a distal end, the distal end of the inflation lumen extending into one of the openings of the rigid member, wherein the rigid member comprises an opening, proximate to the inflation lumen, for inflation of the inflatable member. 5. The implantable apparatus of claim 4 wherein the hub further comprises a hole sized to slideably accommodate the inflation lumen. 6. The implantable apparatus of claim 1, further comprising a catheter sleeve coupled between a distal end of the hub and a proximal end of the rigid member, the catheter sleeve sized to encase the plurality of dosing lumens while allowing individual movement of the plurality of dosing lumens. 7. The implantable apparatus of claim 1, wherein the rigid member includes a lock on the proximal end of the rigid member, wherein the lock is configured to removably receive a distal end of the keyed stylet. 8. The implantable apparatus of claim 1, wherein the hub is configured to removably receive a proximal end of the keyed stylet. 9. The implantable apparatus of claim 1, wherein the hub defines a slot for receiving at least a portion of the stylet. 10. The implantable apparatus of claim 9, wherein the slot is defined by an exterior surface of the hub. 11. The implantable apparatus of claim 1, wherein the hole comprises a plurality of openings extending partially through the hub to a larger opening at least partially defined by the hub. 12. An apparatus for treating a proliferative disorder in a patient comprising: a rigid member fixed at a distal end of the apparatus, the rigid member having a proximal end, a distal end and a plurality of openings within an interior of the rigid member extending longitudinally from a proximal end of the rigid member towards a distal end of the rigid member such that access to the plurality of openings is solely at the proximal end of the rigid member and the distal end of the rigid member;an inflatable member enveloping at least a portion of the rigid member, the inflatable member spaced apart from a proximal end of the apparatus such that the inflatable member does not envelop the proximal end of the apparatus;a plurality of separate dosing lumens, each having a proximal end and a distal end, wherein each distal end of each dosing lumen extends into a different one of the plurality of openings of the rigid member and wherein the rigid member provides a sole, fixed attachment point for securing the plurality of dosing lumens to the apparatus at the distal end of the apparatus and for restricting movement of the plurality of dosing lumens at the sole attachment point about any degree of freedom relative to the apparatus;a hub disposed remote from the rigid member and positioned between the distal ends and proximal ends of the dosing lumens, the hub having a hole extending therethrough sized to slideably accommodate the plurality of dosing lumens to thereby allow individualized movement of the plurality of dosing lumens through the hub; anda catheter sleeve coupled between a distal end of the hub and a proximal end of the rigid member, the catheter sleeve sized to encase the plurality of dosing lumens while allowing individual movement of the plurality of dosing lumens. 13. The apparatus of claim 12, wherein the inflatable member encases the rigid member. 14. The apparatus of claim 13, further comprising an inflation lumen having a proximal end and a distal end, the distal end of the inflation lumen extending into one of the openings of the rigid member, wherein the rigid member comprises an opening, proximate to the inflation lumen, for inflation of the inflatable member. 15. The apparatus of claim 14 wherein the hub further comprises a hole sized to slideably accommodate the inflation lumen. 16. The apparatus of claim 12 further comprising: a keyed stylet configured to removably connect the rigid member to the hub such that the rigid member is fixed rotationally with the hub. 17. The apparatus of claim 16, wherein the hub is configured to removably receive a proximal end of the keyed stylet. 18. The apparatus of claim 16, wherein the hub defines a slot for receiving at least a portion of the keyed stylet. 19. The apparatus of claim 18, wherein the slot is defined by an exterior surface of the hub. 20. The apparatus of claim 12, wherein the hole comprises a plurality of openings extending partially through the hub to a larger opening at least partially defined by the hub.
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