초록 ▼

A reciprocating surgical file system for precisely removing bone and/or other tissue is described. The system allows a user to maneuver the system and navigate into hard-to-access sites under a direct vision mechanism. A transmission mechanism converts rotary motion from a motor into reciprocating m

A reciprocating surgical file system for precisely removing bone and/or other tissue is described. The system allows a user to maneuver the system and navigate into hard-to-access sites under a direct vision mechanism. A transmission mechanism converts rotary motion from a motor into reciprocating motion and provides it to the surgical file for precision removal of bone or other tissue. A pulsatile pump mechanism is operatively coupled with the transmission mechanism and provides irrigating fluid to the surgical site.

대표청구항 ▼

1. A surgical instrument comprising: a housing that contains a drive system;a distal assembly having a distal tip configured to grind tissue, file tissue, cut tissue, or combinations thereof, said distal assembly extending from said housing and engaging said drive system of said housing;an elongate

1. A surgical instrument comprising: a housing that contains a drive system;a distal assembly having a distal tip configured to grind tissue, file tissue, cut tissue, or combinations thereof, said distal assembly extending from said housing and engaging said drive system of said housing;an elongate endoscope comprising an elongate body having an optical element at or adjacent a distal end thereof, the optical element having a line of sight and a field of vision about the line of sight, the line of sight being an imaginary line from the optical element to a point upon which the optical element is focused, the endoscope configured to communicate an image along its length from the optical element to the proximal end of the endoscope body; andan elongate lumen extending through said housing and said distal assembly so that a distal opening of the lumen is positioned proximally adjacent the distal tip, said lumen and said endoscope body being sized and configured so that the elongate body is slidable longitudinally through the lumen to a seated position in which the optical element of said endoscope is positioned at or adjacent the distal tip so as to provide endoscopic viewing of said distal tip;wherein the elongate lumen is straight along its length through the housing and distal assembly, wherein the endoscope body is straight and fits within the straight lumen;wherein the distal assembly has a longitudinal axis, and the distal tip has an axis, and the distal tip axis is disposed at an oblique angle relative to the distal assembly longitudinal axis;wherein the elongate endoscope body has an axis, and the line of sight of the endoscope optical element is disposed at an oblique angle relative to the endoscope body axis; andwherein the elongate endoscope provides viewing of the distal tip. 2. The surgical instrument of claim 1, wherein said instrument is further configured to permit releasable engagement of said endoscope to said housing. 3. The surgical instrument of claim 1, wherein said distal tip is curved and comprises a blade and a lower blade structure, and said blade slidably disposed on said lower blade structure. 4. The surgical instrument of claim 1, wherein the optical element is focused on a single point, and the line of sight of the elongate endoscope is disposed at an oblique angle relative to the distal tip axis. 5. The surgical instrument of claim 4, wherein the line of sight of the elongate endoscope intersects the distal tip axis at a point on the distal tip. 6. The surgical instrument of claim 5, wherein the line positioned centrally in the field of vision is disposed at an oblique angle relative to the distal tip axis. 7. The surgical instrument of claim 4, wherein the line of sight of the elongate endoscope intersects the distal tip axis at a point distal of the distal tip. 8. The surgical instrument of claim 1, wherein the endoscope optical element is generally aligned with the endoscope longitudinal axis. 9. The surgical instrument of claim 8, wherein when the endoscope body is in the seated position the endoscope optical element is at or adjacent the housing lumen distal opening and spaced from the distal tip, and the field of vision encompasses an entire length of the distal tip. 10. The surgical instrument of claim 1, wherein a line positioned centrally in the field of vision is disposed at an oblique angle relative to the endoscope longitudinal axis. 11. The surgical instrument of claim 1, wherein the lumen is sized so that the optical element can slide therethrough. 12. The surgical instrument of claim 1, wherein the body assembly comprises a guide configured to engage the endoscope and prevent rotation of the endoscope relative to the body assembly. 13. The surgical instrument of claim 1 additionally comprising an imaging capturing device, wherein the image capturing device is connectable to a proximal end of the endoscope. 14. A surgical instrument comprising: a body assembly having a distal tip with a cutting surface configured to remove bone from a mammal, the body assembly having a longitudinal axis and having a straight elongate receiver portion extending parallel to the body assembly longitudinal axis from a receiver portion proximal end to a receiver portion distal end, the body assembly having a seat; anda straight elongate endoscope having a proximal end, a distal end, and a longitudinal axis, the endoscope being elongate along the longitudinal axis from the proximal end to the distal end, and having an optical element disposed at or adjacent the distal end, the endoscope configured to communicate an image along its length from the optical element to the proximal end, the optical element having a line of sight and a field of vision about the line of sight, the line of sight being an imaginary line from the optical element to a point upon which the optical element is focused, the optical element line of sight being at an oblique angle relative to the endoscope longitudinal axis;wherein said body assembly elongate receiver is configured to engage the endoscope so that the endoscope is slidable distally along the length of the receiver until a stop portion of the endoscope engages the body assembly seat so as to prevent further distal movement relative to the bode assembly, and when the stop portion is engaged with the seat said endoscope optical element is positioned at or adjacent said distal tip so as to provide viewing of said distal tip cutting surface when said distal tip cutting surface removes bone; andwherein said endoscope is slidable proximally relative to the body assembly elongate receiver so as to be disengaged from the body assembly. 15. The surgical instrument of claim 14, further comprising a passageway extending through said body assembly, and wherein said passageway is sized to receive said endoscope. 16. The surgical instrument of claim 14, wherein said distal assembly distal tip comprises a movable blade coupled to a lower blade structure. 17. The surgical instrument of claim 16, wherein the distal tip is curved, and an axis of the cutting surface is disposed at an oblique angle relative to the body assembly longitudinal axis. 18. The surgical instrument of claim 17, wherein the optical element is focused on a single point, and the endoscope optical element line of sight is disposed at an oblique angle relative to the cutting surface axis. 19. The surgical instrument of claim 14, wherein at least a portion of the distal tip is offset from said body assembly longitudinal axis, wherein said endoscope provides viewing of the portion of said distal tip that is offset from said longitudinal axis. 20. The surgical instrument of claim 14, wherein the body assembly receiver comprises a guide that maintains the endoscope in a position so that the optical element line of sight is properly aligned to provide viewing of said distal tip cutting surface when said distal tip cutting surface removes bone. 21. The surgical instrument of claim 14, wherein a line positioned centrally in the field of vision is disposed at an oblique angle relative to the endoscope longitudinal axis.