US2008058725A1PendingUtilityA1

Methods and apparatus for placing materials into bone

59
Assignee: KYPHON INCPriority: Aug 14, 1998Filed: Oct 29, 2007Published: Mar 6, 2008
Est. expiryAug 14, 2018(expired)· nominal 20-yr term from priority
Inventors:Robert M. ScribnerMichael L. ReoMark A. ReileyRyan Boucher
A61F 2/4603A61B 17/8822A61B 17/8855A61B 2017/00867A61B 50/33A61B 17/8805A61F 2250/0098A61B 17/3472A61B 17/8833A61F 2002/4662A61F 2002/2835A61B 17/8816A61F 2/44A61B 90/39A61B 17/7097A61F 2310/00353A61B 17/1671A61F 2/4601A61B 2017/00261A61B 2090/062A61B 2050/0065A61B 2017/00464A61F 2002/3008
59
PatentIndex Score
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Cited by
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References
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Claims

Abstract

A cannula establishes a subcutaneous path into bone. A tamping instrument having a tamping terminus is sized and configured for manipulation independent of the cannula to enable insertion of the tamping instrument into the cannula, advancement of the tamping terminus in the cannula to urge material residing in the cannula into bone, and withdrawal of the tamping terminus from the cannula.

Claims

exact text as granted — not AI-modified
1 . Apparatus for delivering material into bone comprising a cannula for establishing a subcutaneous path into bone and including at least one radiopaque marker, and a tamping instrument having a tamping terminus, the tamping instrument being sized and configured for manipulation independent of the cannula to enable insertion of the tamping instrument into the cannula, advancement of the tamping terminus in the cannula to urge material residing in the cannula into bone, and withdrawal of the tamping terminus from the cannula.  
     
     
         2 . Apparatus according to  claim 1  wherein the cannula has a length, and wherein the length of the tamping instrument exceeds the length of the cannula.  
     
     
         3 . Apparatus according to  claim 1  wherein a removable handle is carried by the proximal end of the cannula.  
     
     
         4 . Apparatus according to  claim 1  wherein handle is carried by the proximal end of the tamping instrument.  
     
     
         5 . Apparatus according to  claim 4  wherein, when the tamping instrument is fully inserted into the cannula, the handle is adjacent the proximal end of the cannula.  
     
     
         6 . Apparatus according to  claim 1  wherein the cannula comprises a generally rigid material.  
     
     
         7 . Apparatus according to  claim 1  wherein the tamping instrument comprises a generally rigid material.  
     
     
         8 . Apparatus according to  claim 1  wherein the tamping instrument has a blunt distal end.  
     
     
         9 . Apparatus according to  claim 1  wherein the cannula has a blunt distal end.  
     
     
         10 . Apparatus according to  claim 1  wherein the tamping instrument and the cannula each have a blunt distal end.  
     
     
         11 . Apparatus according to  claim 1  further comprising a delivery device to convey material into the cannula.  
     
     
         12 . Apparatus according to  claim 1  wherein the tamping instrument includes at least one marking to visually gauge the advancement the terminus relative to the distal end of the cannula.  
     
     
         13 . Apparatus according to  claim 1  wherein the tamping instrument includes a set point marking spaced from the terminus at a distance generally equal to the length of the cannula.  
     
     
         14 . Apparatus according to  claim 12  wherein the tamping instrument includes at least one additional marking to visually gauge advancement of the terminus relative to the distal end of the cannula.  
     
     
         15 . Apparatus according to  claim 1  wherein the tamping instrument includes at least one radiopaque marker.  
     
     
         16 . Apparatus according to  claim 1  wherein the cannula is plastic.  
     
     
         17 . Apparatus according to  claim 16  wherein the tamping instrument is plastic.  
     
     
         18 . Apparatus according to  claim 1  wherein the tamping instrument has a substantially constant diameter along its length.  
     
     
         19 . Apparatus according to  claim 1  wherein the material is bone cement.  
     
     
         20 . Apparatus according to  claim 1  wherein the material comprises autograft material.  
     
     
         21 . Apparatus according to  claim 1  wherein the material comprises allograft material.  
     
     
         22 . Apparatus according to  claim 1  wherein the material comprises calcium carbonate.  
     
     
         23 . Apparatus according to  claim 1  wherein the material comprises demineralized bone matrix material.  
     
     
         24 . Apparatus according to  claim 1  wherein the material comprises calcium phosphate.  
     
     
         25 . Apparatus for delivering material into bone comprising a cannula for establishing a subcutaneous path into bone, and a tamping instrument having a tamping terminus and including at least one marking to visually gauge the advancement of the terminus relative to the distal end of the cannula, the tamping instrument being sized and configured for manipulation independent of the cannula to enable insertion of the tamping instrument into the cannula, advancement of the tamping terminus in the cannula to urge material residing in the cannula into bone, and withdrawal of the tamping terminus from the cannula.  
     
     
         26 . Apparatus according to  claim 25  wherein the tamping instrument includes a set point marking spaced from the terminus at a distance generally equal to the length of the cannula.  
     
     
         27 . Apparatus according to  claim 25  wherein the tamping instrument includes at least one additional marking to visually gauge advancement of the terminus relative to the distal end of the cannula.  
     
     
         28 . Apparatus for delivering material into bone comprising a cannula for establishing a subcutaneous path into bone, the cannula including at least one radiopaque marker and being sized and configured to accept insertion and withdrawal of a first instrument in the cannula, and a tamping instrument separate from the first instrument having a tamping terminus, the tamping instrument being sized and configured for manipulation independent of the cannula to enable insertion of the tamping instrument into the cannula and advancement of the tamping terminus in the cannula to urge material residing in the cannula into the bone.  
     
     
         29 . Apparatus for delivering material into bone comprising a cannula for establishing a subcutaneous path into bone, the cannula being sized and configured to accept insertion and withdrawal of a first instrument in the cannula, and a tamping instrument separate from the first instrument having a tamping terminus, the tamping instrument including at least one marking to visually gauge the advancement of the terminus relative to the distal end of the cannula and being sized and configured for manipulation independent of the cannula to enable insertion of the tamping instrument into the cannula and advancement of the tamping terminus in the cannula to urge material residing the cannula into bone.  
     
     
         30 . Apparatus according to  claim 29  wherein the tamping instrument includes a set point marking spaced from the terminus at a distance generally equal to the length of the cannula.  
     
     
         31 . Apparatus according to  claim 30  wherein the tamping instrument includes at least one additional marking to visually gauge advancement of the terminus relative to the distal end of the cannula.  
     
     
         32 . Apparatus for delivering material into bone comprising a cannula for establishing a subcutaneous path into bone and including at least one radiopaque marker; and a tamping instrument for advancement through the cannula comprising a body portion and a handle portion, the handle portion having a cross-sectional area greater than the cross-sectional area of the body portion.  
     
     
         33 . Apparatus for delivering material into bone comprising a cannula for establishing a subcutaneous path into bone; and a tamping instrument for advancement through the cannula including at least one marking to visually gauge the advancement of the terminus relative to the distal end of the cannula and comprising a body portion and a handle portion, the handle portion having a cross-sectional area greater than the cross-sectional area of the body portion.  
     
     
         34 . Apparatus according to  claim 33  wherein the tamping instrument includes a set point marking spaced from the terminus at a distance generally equal to the length of the cannula.  
     
     
         35 . Apparatus according to  claim 34  wherein the tamping instrument includes at least one additional marking to visually gauge advancement of the terminus relative to the distal end of the cannula.  
     
     
         36 . Apparatus for delivering material into bone comprising a cannula for establishing a subcutaneous path into bone and including at least one radiopaque marker; and a tamping instrument for advancement through the cannula comprising a body portion and a handle portion, the body portion being sized and configured to substantially fill the cannula when the tamping instrument is fully inserted into the cannula.  
     
     
         37 . Apparatus for delivering material into bone comprising a cannula for establishing a subcutaneous path into bone; and a tamping instrument for advancement through the cannula including at least one marking to visually gauge the advancement of the terminus relative to the distal end of the cannula, and comprising a body portion and a handle portion, the body portion being sized and configured to substantially fill the cannula when the tamping instrument is fully inserted into the cannula.  
     
     
         38 . Apparatus according to  claim 37  wherein the tamping instrument includes a set point marking spaced from the terminus at a distance generally equal to the length of the cannula.  
     
     
         39 . Apparatus according to  claim 38  wherein the tamping instrument includes at least one additional marking to visually gauge advancement of the terminus relative to the distal end of the cannula.  
     
     
         40 . Apparatus for delivering material into bone comprising a cannula for establishing a subcutaneous path into bone and including at least one radiopaque marker; and a tamping instrument for advancement through the cannula comprising a body portion and a handle portion, the body portion having a substantially constant diameter along its length.  
     
     
         41 . Apparatus for delivering material into bone comprising a cannula for establishing a subcutaneous path into bone; and a tamping instrument for advancement through the cannula including at least one marking to visually gauge the advancement of the terminus relative to the distal end of the cannula and comprising a body portion and a handle portion, the body portion having a substantially constant diameter along its length.  
     
     
         42 . Apparatus for delivering material into bone comprising a cannula for establishing a subcutaneous path into bone; and a tamping instrument for advancement through the cannula including a set point marking spaced from the terminus at a distance generally equal to the length of the cannula and comprising a body portion and a handle portion, the body portion having a substantially constant diameter along its length.  
     
     
         43 . Apparatus according to  claim 42  wherein the tamping instrument includes at least one additional marking to visually gauge advancement of the terminus relative to the distal end of the cannula.  
     
     
         44 . Apparatus for delivering material into bone comprising a cannula for establishing a subcutaneous path into bone, the cannula comprising a generally rigid material and including at least one radiopaque marker, a tamping instrument comprising a generally rigid material and having a tamping terminus, the tamping instrument being sized and configured for manipulation independent of the cannula to enable insertion of the tamping instrument into the cannula, advancement of the tamping terminus in the cannula to urge material residing in the cannula into bone, and withdrawal of the tamping terminus from the cannula, and a handle carried by the proximal end of the tamping instrument.  
     
     
         45 . Apparatus according to  claim 44  wherein the tamping instrument has a blunt distal end.  
     
     
         46 . Apparatus according to  claim 45  wherein the cannula is sized and configured to accept insertion and withdrawal of a first instrument in the cannula, and wherein the tamping instrument is separate from the first instrument.  
     
     
         47 . Apparatus according to  claim 46  wherein the handle carried by the tamping instrument has a cross-sectional area greater than the cross-sectional area of the tamping terminus of the tamping instrument.  
     
     
         48 . Apparatus according to  claim 47  wherein the tamping instrument is sized an configured to substantially fill the cannula.  
     
     
         49 . Apparatus according to  claim 48  wherein the tamping instrument has a substantially constant diameter along its length.  
     
     
         50 . Apparatus according to  claim 44  wherein the cannula has a length, and wherein the length of the tamping instrument exceeds the length of the cannula.  
     
     
         51 . Apparatus according to  claim 50  wherein the tamping instrument has a substantially blunt distal end.  
     
     
         52 . Apparatus according to  claim 51  wherein the cannula is sized and configured to accept insertion and withdrawal of a first instrument in the cannula, and wherein the tamping instrument and the first instrument are different instruments.  
     
     
         53 . Apparatus according to  claim 52  wherein the handle carried by the tamping instrument has a cross-sectional area greater than the cross-sectional area of the tamping terminus of the tamping instrument.  
     
     
         54 . Apparatus according to  claim 53  wherein the tamping instrument is sized and configured to substantially fill the cannula.  
     
     
         55 . Apparatus according to  claim 54  wherein the tamping instrument has a substantially constant diameter along its length.  
     
     
         56 . Apparatus according to  claim 55  wherein, when the tamping instrument fully occupies the cannula, the handle carried by the tamping instrument is adjacent the proximal end of the cannula.  
     
     
         57 . Apparatus according to  claim 56  wherein the cannula has a blunt distal end.  
     
     
         58 . Apparatus according to  claim 57  wherein a removable handle is carried by the proximal end of the cannula.  
     
     
         59 . Apparatus according to  claim 58  wherein the tamping instrument has a generally blunt distal end.  
     
     
         60 . Apparatus according to  claim 59  wherein the cannula is sized and configured to accept insertion and withdrawal of a first instrument in the cannula, and wherein the tamping instrument is separate from the first instrument.  
     
     
         61 . Apparatus according to  claim 60  wherein the handle carried by the tamping instrument has a cross-sectional area greater than the cross-sectional area of the tamping terminus of the tamping instrument.  
     
     
         62 . Apparatus according to  claim 61  wherein the tamping instrument is sized and configured to substantially fill the cannula.  
     
     
         63 . Apparatus according to  claim 62  wherein the tamping instrument has a substantially constant diameter along its length.  
     
     
         64 . Apparatus according to  claim 44  wherein, when the tamping instrument fully occupies substantially the entire cannula, the handle carried the tamping instrument is adjacent the proximal end of the cannula.  
     
     
         65 . Apparatus according to  claim 64  wherein the tamping instrument has a blunt distal end.  
     
     
         66 . Apparatus according to  claim 65  wherein the cannula is sized and configured to accept insertion and withdrawal of a first instrument in the cannula, and wherein the tamping instrument is separate from the first instrument.  
     
     
         67 . Apparatus according to  claim 66  wherein the handle carried by the tamping instrument has a cross-sectional area greater than the cross-sectional area of the tamping terminus of the tamping instrument.  
     
     
         68 . Apparatus according to  claim 67  wherein the tamping instrument is sized and configured to substantially fill the cannula.  
     
     
         69 . Apparatus according to  claim 68  wherein the tamping instrument has a substantially constant diameter along its length.  
     
     
         70 . Apparatus according to  claim 64  wherein the cannula has a blunt distal end.  
     
     
         71 . Apparatus according to  claim 70  wherein a removable handle is carried by the proximal end of the cannula.  
     
     
         72 . Apparatus according to  claim 71  wherein the tamping instrument has a blunt distal end.  
     
     
         73 . Apparatus according to  claim 72  wherein the cannula is sized and configured to accept insertion and withdrawal of a first instrument in the cannula, and wherein the tamping instrument is separate from the first instrument.  
     
     
         74 . Apparatus according to  claim 73  wherein the handle carried by the tamping instrument has a cross-sectional area greater than the cross-sectional area of the tamping terminus of the tamping instrument.  
     
     
         75 . Apparatus according to  claim 74  wherein the tamping instrument is sized and configured to substantially fill the cannula.  
     
     
         76 . Apparatus according to  claim 75  wherein the tamping instrument has a substantially constant diameter along its length.  
     
     
         77 . Apparatus according to  claim 44  wherein the cannula has a blunt distal end.  
     
     
         78 . Apparatus according to  claim 77  wherein the tamping instrument has a blunt distal end.  
     
     
         79 . Apparatus according to  claim 78  wherein the cannula is sized and configured to accept insertion and withdrawal of a first instrument in the cannula, and wherein the tamping instrument is separate from the first instrument.  
     
     
         80 . Apparatus according to  claim 79  wherein the handle carried by the tamping instrument has a cross-sectional area greater than the cross-sectional area of the tamping terminus of the tamping instrument.  
     
     
         81 . Apparatus according to  claim 80  wherein the tamping instrument is sized and configured to substantially fill the cannula.  
     
     
         82 . Apparatus according to  claim 81  wherein the tamping instrument has a substantially constant diameter along substantially its entire length.  
     
     
         83 . Apparatus according to  claim 77  wherein a removable handle is carried by the proximal end of the cannula.  
     
     
         84 . Apparatus according to  claim 83  wherein the tamping instrument has a blunt distal end.  
     
     
         85 . Apparatus according to  claim 84  wherein the cannula is sized and configured to accept insertion and withdrawal of a first instrument in the cannula, and wherein the tamping instrument is separate from the first instrument.  
     
     
         86 . Apparatus according to  claim 85  wherein the handle carried by the tamping instrument has a cross-sectional area greater than the cross-sectional area of the tamping terminus of the tamping instrument.  
     
     
         87 . Apparatus according to  claim 86  wherein the tamping instrument is sized and configured to substantially fill the cannula.  
     
     
         88 . Apparatus according to  claim 87  wherein the tamping instrument has a substantially constant diameter along its length.  
     
     
         89 . Apparatus according to  claim 44  wherein a removable handle is carried by the proximal end of the cannula.  
     
     
         90 . Apparatus according to  claim 89  wherein the tamping instrument has a blunt distal end.  
     
     
         91 . Apparatus according to  claim 89  wherein the cannula is sized and configured to accept insertion and withdrawal of a first instrument in the cannula, and wherein the tamping instrument is separate from the first instrument.  
     
     
         92 . Apparatus according to  claim 89  wherein the handle carried by the tamping instrument has a cross-sectional area greater than the cross-sectional area of the tamping terminus of the tamping instrument.  
     
     
         93 . Apparatus according to  claim 89  wherein the tamping instrument is sized and configured to substantially fill the cannula.  
     
     
         94 . Apparatus according to  claim 89  wherein the tamping instrument has a substantially constant diameter along its length.

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