Fusion cage with combined biological delivery system
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-017/56
A61B-017/88
A61F-002/44
A61F-002/46
A61F-002/30
A61F-002/28
출원번호
US-0714971
(2012-12-14)
등록번호
US-9173694
(2015-11-03)
발명자
/ 주소
Kleiner, Jeffrey B.
출원인 / 주소
Spinal Surgical Strategies, LLC
대리인 / 주소
Sheridan Ross P.C.
인용정보
피인용 횟수 :
14인용 특허 :
418
초록▼
The present invention relates to an apparatus and method for near-simultaneous and integrated delivery of bone graft material during the placement of surgical cages or other medical implants in a patient's spine. The integrated fusion cage and graft delivery device according to various embodiments d
The present invention relates to an apparatus and method for near-simultaneous and integrated delivery of bone graft material during the placement of surgical cages or other medical implants in a patient's spine. The integrated fusion cage and graft delivery device according to various embodiments delivers and disperses biologic material through a fusion cage to a disc space and, without withdrawal from the surgical site, may selectably detach the fusion cage for deposit to the same disc space. The integrated fusion cage and graft delivery device is formed such that a hollow tube and plunger selectively and controllably place bone graft material and a fusion cage in or adjacent to the bone graft receiving area.
대표청구항▼
1. A bone graft delivery system, comprising: a hollow tube constructed to receive bone graft, said hollow tube having an extended axis and a proximal end and a distal end, said hollow tube having a non-circular interior cross-section from said proximal end to said distal end, said distal end having
1. A bone graft delivery system, comprising: a hollow tube constructed to receive bone graft, said hollow tube having an extended axis and a proximal end and a distal end, said hollow tube having a non-circular interior cross-section from said proximal end to said distal end, said distal end having a distal tip having a substantially tapered distal tip interior surface, said distal end having a distal end interior surface of non-circular cross-section, said hollow tube having one or more lateral openings;a funnel disposed at the proximal end of the hollow tube, the funnel configured to receive bone graft material, the funnel in fluid communication with the proximal end of the hollow tube to deliver bone graft material through the hollow tube; anda plunger adapted for inserting into said proximal end of said hollow tube, said plunger having a distal end having a distal end exterior surface of non-circular cross-section contoured to said distal end interior surface of said hollow tube, said plunger distal end exterior surface of non-circular cross-section forming a substantially congruent fit with said hollow tube non-circular interior cross-section, wherein said hollow tube and said plunger are configured to deliver bone graft material to a graft receiving area through said one or more lateral openings and said one or more lateral openings are located near said distal end of said hollow tube, said one or more lateral openings substantially precluding the delivery of bone graft material directly along said axis of said hollow tube, said plunger precluded from rotating when inserted into said hollow tube. 2. The bone graft delivery system of claim 1, wherein said hollow tube is of single piece construction. 3. The bone graft delivery system of claim 1, wherein said plunger is of single piece construction. 4. The bone graft delivery system of claim 1, wherein said plunger has an axial length at least sufficient wherein at least a portion of said plunger distal end is positioned adjacent to said one or more lateral openings when fully inserted into said hollow tube. 5. The bone graft delivery system of claim 1, wherein the distal tip is removably coupled to the distal end of the hollow tube. 6. The bone graft delivery system of claim 1, wherein the hollow tube is straight. 7. The bone graft delivery system of claim 1, further comprising an endoscopic camera positioned adjacent the hollow tube. 8. The bone graft delivery system of claim 1, wherein the at least one or more lateral openings configured to deliver bone graft material is at least two openings. 9. The bone graft delivery system of claim 8, wherein the at least two openings each have an upper and a lower end located in a radially symmetrical location of the distal end of the tube. 10. The bone graft delivery system of claim 8, wherein the distal end of the plunger is configured to remain always proximal to the distal tip of the hollow tube when the plunger is inserted into the hollow tube. 11. The bone graft delivery system of claim 10, wherein the distal end of the hollow tube comprises an abrasive surface configured to rasp bone. 12. A bone graft delivery system, comprising: a hollow tube constructed to receive bone graft, said hollow tube having an extended axis and a proximal end and a distal end, said hollow tube having a non-circular interior cross-section from said proximal end to said distal end, said distal end having a distal tip having a substantially tapered distal tip interior surface, said distal end having a distal end interior surface of non-circular cross-section, said hollow tube having one or more lateral openings;a funnel disposed at the proximal end of the hollow tube, the funnel configured to receive bone graft material, the funnel in fluid communication with the proximal end of the hollow tube to deliver bone graft material through the hollow tube; anda plunger adapted for inserting into said proximal end of said hollow tube, said plunger of single piece construction and having a distal end exterior surface of non-circular cross-section contoured to said distal end interior surface of said hollow tube, said plunger distal end exterior surface of non-circular cross-section forming a substantially congruent fit with said hollow tube non-circular interior cross-section, wherein said hollow tube and said plunger are configured to deliver bone graft material to a graft receiving area through said one or more lateral openings and said one or more lateral openings are located near said distal end of said hollow tube, said one or more lateral openings substantially precluding the delivery of bone graft material directly along said axis of said hollow tube, said plunger precluded from rotating when inserted into said hollow tube;wherein the at least one or more lateral openings configured to deliver bone graft material is at least two openings; andwherein the distal end of the plunger is configured to remain always proximal to the distal tip of the hollow tube when the plunger is inserted into the hollow tube. 13. The bone graft delivery system of claim 12, wherein the distal end of the hollow tube comprises an abrasive surface configured to rasp bone. 14. A method for delivering bone graft material to a surgical location comprising: providing a bone graft delivery system, comprising: a hollow tube constructed to receive bone graft, said hollow tube having an extended axis and a proximal end and a distal end, said hollow tube having an interior cross-section from said proximal end to said distal end, said distal end having a distal tip comprising a substantially tapered distal tip interior surface, said hollow tube having one or more lateral openings; a funnel disposed at the proximal end of the hollow tube, the funnel configured to receive bone graft material, the funnel in fluid communication with the proximal end of the hollow tube to deliver bone graft material through the hollow tube; and a plunger adapted for inserting into said proximal end of said hollow tube, said plunger having a distal end comprising a distal end exterior surface of a cross-section contoured to said distal end interior surface of said hollow tube, said plunger distal end exterior surface of cross-section forming a substantially congruent fit with said hollow tube interior cross-section, wherein said hollow tube and said plunger are configured to deliver bone graft material to a graft receiving area through said one or more lateral openings and said lateral openings are located near said distal end of said hollow tube, said one or more lateral openings substantially precluding the delivery of bone graft material directly along said axis of said hollow tube, said plunger precluded from rotating when inserted into said hollow tube, wherein the distal end of the hollow tube comprises an abrasive surface configured to rasp bone;loading bone graft material into the funnel;positioning the bone graft delivery system adjacent a surgical location;inserting the plunger into hollow tube; anddelivering the bone graft material through the hollow tube to distally advance the plunger. 15. The method of claim 14, further comprising decorticating bone disposed at the surgical location with the abrasive surface. 16. The method of claim 14, wherein said plunger has an axial length at least sufficient wherein at least a portion of said plunger distal end is positioned adjacent to said one or more lateral openings when fully inserted into said hollow tube. 17. The bone graft delivery system of claim 14, wherein the at least one one or more lateral openings configured to deliver bone graft material is at least two openings. 18. The bone graft delivery system of claim 17, wherein the at least two openings each have an upper and a lower end located in a radially symmetrical location of the distal end of the tube. 19. The bone graft delivery system of claim 17, wherein the distal end of the plunger is configured to remain always proximal to the distal tip of the hollow tube when the plunger is inserted into the hollow tube. 20. The bone graft delivery system of claim 19, wherein the hollow tube is straight.
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