System and method for modifying a flexibility of a brachythereapy catheter
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61N-005/00
A61N-005/10
A61M-025/00
A61M-025/01
A61M-037/00
A61M-025/04
A61M-025/10
출원번호
US-0369236
(2009-02-11)
등록번호
US-9248311
(2016-02-02)
발명자
/ 주소
Damarati, John
출원인 / 주소
Hologic, Inc.
인용정보
피인용 횟수 :
4인용 특허 :
265
초록▼
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 apparatus for treating a proliferative disorder in a patient comprising: an implantable rigid member having a proximal end and a distal end, the implantable rigid member comprising a plurality of lumen openings extending longitudinally within the implantable rigid member, and wherein the proxi
1. An apparatus for treating a proliferative disorder in a patient comprising: an implantable rigid member having a proximal end and a distal end, the implantable rigid member comprising a plurality of lumen openings extending longitudinally within the implantable rigid member, and wherein the proximal end of the implantable rigid member defines a lock opening;a plurality of separate flexible 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 lumen openings of the implantable rigid member and wherein the distal end of each dosing lumen is spaced apart from the proximal end of the implantable rigid member;a hub discrete from the implantable rigid member and disposed about the plurality of dosing lumens, wherein the hub defines a slot defined by an outer circumferential surface of the hub; anda stylet comprising a shaft having a distal end and a proximal end and a key feature at the distal end of the shaft, wherein an exterior of the shaft has a uniform shape along a length of the shaft from the proximal end of the shaft to the distal end of the shaft and wherein the key feature removably mates with the lock opening of the implantable rigid member, and wherein the proximal end removably mates with the slot defined by the hub, such that mating engagement between the stylet and both the lock opening and the slot allows for a one-to-one axial rotation of the implantable rigid member and the hub, whereby an axial rotation of the stylet causes a corresponding axial rotation of the implantable rigid member and the hub. 2. The apparatus of claim 1, wherein the stylet further comprises a tab at the proximal end and wherein the shaft extends between the key feature and the tab. 3. The apparatus of claim 1 further comprising an implantable inflatable member, the implantable inflatable member enveloping at least a portion of the rigid member. 4. The apparatus of claim 1 wherein the hub comprises a plurality of holes extending there through, wherein each of the plurality of holes is sized such that each of the plurality of dosing lumens is configured to independently move axially and rotatably within the hub. 5. The apparatus of claim 1 wherein the hub comprises a collar portion and a body portion, a circumference of the collar portion being less than a circumference of the body portion. 6. The apparatus of claim 1 wherein the stylet comprises a tab feature located at an end of the shaft. 7. The apparatus of claim 1 wherein each of the dosing lumens is fixedly attached to an interior of a respective opening of the implantable rigid member. 8. The apparatus of claim 1 wherein the stylet is rigid such that rigidity of the stylet allows the stylet to selectively modify the rigidity of the apparatus and imparts rigidity to the at least a portion of the apparatus. 9. The apparatus of claim 1, wherein the hub defines at least one hole extending therethrough, wherein the plurality of dosing lumens are disposed in the at least one hole. 10. The apparatus of claim 1, wherein the hub defines a plurality of holes extending therethrough, wherein at least one of the plurality of dosing lumens are disposed in each of the plurality of holes. 11. An apparatus for treating a proliferative disorder in a patient comprising: an implantable rigid member having a proximal end and a distal end, the implantable rigid member comprising a lumen opening extending longitudinally within the implantable rigid member, the implantable rigid member further comprising a lock opening defined by the proximal end;a dosing lumen having a proximal end and a distal end, wherein the distal end of the dosing lumen extends into the lumen opening of the implantable rigid member;a hub discrete from the implantable rigid member and disposed about the dosing lumen, wherein the hub defines a slot defined by an outer circumferential surface of the hub; anda stylet comprising a shaft having a distal end and a proximal end and a key feature at the distal end of the shaft, wherein the key feature removably mates with the implantable rigid member at the lock opening, and a portion of the proximal end mates with the slot of the hub, such that mating engagement between the stylet and both the lock opening and the slot allows for a one-to-one axial rotation of the implantable rigid member and the hub, whereby an axial rotation of the stylet causes a corresponding axial rotation of the implantable rigid member and the hub. 12. The apparatus of claim 11, wherein the stylet further comprises a tab at the proximal end and wherein the shaft extends between the key feature and the tab. 13. The apparatus of claim 12, wherein the key feature of the stylet is added for insertion in the lock opening of the implantable rigid member. 14. The apparatus of claim 11 further comprising an implantable inflatable member, the implantable inflatable member enveloping at least a portion of the implantable rigid member. 15. The apparatus of claim 11, wherein the hub comprises a hole extending there through, wherein the hole is sized such that the dosing lumen is configured to independently move axially and rotatably within the hub. 16. The apparatus of claim 11, wherein the stylet comprises a tab feature located at an end of the shaft. 17. The apparatus of claim 11, wherein the stylet is rigid such that rigidity of the stylet allows the stylet to selectively modify the rigidity of the apparatus and imparts rigidity to the at least a portion of the apparatus.
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