Coordinate instrument set
First Claim
1. A surgical instrument having a proximal end and a distal end, the surgical instrument comprising a tube and a ruler, the tube having a proximal end, a distal end, and an elongate channel;
- the ruler having a proximal end, a distal end, a straight portion received within the channel of the tube, a measurement portion between the straight portion and the distal end, and an anchoring tip at the distal end, the measurement portion of the ruler including distance indicia and the anchoring tip having a pointed end;
wherein the measurement portion of the ruler lies in a plane;
wherein the pointed end of the anchoring tip is spaced from the plane of the measurement portion of the ruler; and
wherein the ruler is reciprocable in a proximal-distal direction with respect to the tube between a retracted position and an extended position.
1 Assignment
0 Petitions
Accused Products
Abstract
Surgical instruments for use in mapping tissue defects include telescoping rulers and tubes. One of the instruments has a pointed anchoring tip for piercing tissue near the site of the defect. Another instrument has a hook for catching an anatomical landmark. Measuring portions of the rulers of both instruments include distance indicia so that a coordinate system can be established for mapping the location of the defect or of an implant at the defect site. The coordinate system can be re-established at a later time using the same fixation point for the anchoring tip and the same landmark for the hook to evaluate the clinical effects of the treatment selected. The method of using the instrument set is also described.
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Citations
92 Claims
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1. A surgical instrument having a proximal end and a distal end, the surgical instrument comprising a tube and a ruler,
the tube having a proximal end, a distal end, and an elongate channel; -
the ruler having a proximal end, a distal end, a straight portion received within the channel of the tube, a measurement portion between the straight portion and the distal end, and an anchoring tip at the distal end, the measurement portion of the ruler including distance indicia and the anchoring tip having a pointed end;
wherein the measurement portion of the ruler lies in a plane;
wherein the pointed end of the anchoring tip is spaced from the plane of the measurement portion of the ruler; and
wherein the ruler is reciprocable in a proximal-distal direction with respect to the tube between a retracted position and an extended position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A surgical instrument having a proximal end and a distal end, the surgical instrument comprising a tube and a ruler,
the tube having a proximal end, a distal end, and an elongate channel; -
the ruler having a proximal end, a distal end, a straight portion received within the channel of the tube, a measurement portion between the straight portion and the distal end and a hook at the distal end, the measurement portion of the ruler including distance indicia;
wherein the ruler is reciprocable in a proximal-distal direction with respect to the tube between a retracted position and an extended position. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A surgical instrument set comprising first and second surgical instruments, each surgical instrument having a proximal end and a distal end, and each surgical instrument comprising a tube and a ruler,
the tube of each surgical instrument having a proximal end, a distal end and a channel extending from the proximal to the distal end; -
the ruler of each surgical instrument having a proximal end, a distal end, a measurement portion between the proximal end and the distal end and a straight portion between the measurement portion and the proximal end, the measurement portion including distance indicia;
wherein the straight portion of the ruler of each surgical instrument has a longitudinal axis;
wherein the ruler of each surgical instrument is reciprocable in a proximal-distal direction with respect to the tube between a retracted position and an extended position; and
wherein the distal end of the ruler of the first surgical instrument comprises an anchoring tip having a pointed end and the distal end of the ruler of the second surgical instrument comprises a hook. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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53. A surgical instrument set comprising a plurality of surgical instruments, each surgical instrument having a proximal end and a distal end, and each surgical instrument comprising a tube and a ruler,
the tube of each surgical instrument having a proximal end, a distal end and a channel extending from the proximal to the distal end; -
the ruler of each surgical instrument having a proximal end, a distal end, a measurement portion between the proximal end and the distal end and a straight portion between the measurement portion and the proximal end, the measurement portion including distance indicia;
wherein the straight portion of the ruler of each surgical instrument has a longitudinal axis;
wherein the ruler of each surgical instrument is reciprocable in a proximal-distal direction with respect to the tube between a retracted position and an extended position; and
wherein the measurement portion of the ruler of each surgical instrument extends in a different direction from the longitudinal axis of the straight portion when the ruler is in the extended position. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75)
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76. A method of mapping a feature of a tissue site of a patient with a surgical instrument, the surgical instrument including a tube and a ruler reciprocable with respect to the tube between a retracted position and an extended position, the ruler including a distal end and distance indicia, the method comprising:
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moving a portion of the tube to the tissue site with at least part of the ruler retracted;
piercing the tissue with a portion of the ruler at a selected fixation point to temporarily anchor the distal end of the ruler to the tissue at the fixation point;
moving the tube with respect to the ruler so that the ruler is in the extended position;
determining a distance based on the position of the tissue feature with respect to the fixation site; and
moving the tube with respect to the ruler so that the ruler is in the retracted position and removing the tube and ruler from the tissue site. - View Dependent Claims (77, 78, 79, 80, 81)
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82. A method of measuring a feature of a tissue site within the body of a patient with a surgical instrument,
the surgical instrument including a tube having a proximal end and a distal end, an elongated member reciprocable with respect to the tube between a distally retracted position and a distally extended position, the elongated member having a proximal end and a distal end, and distance indicia at the proximal end of the elongated member, the method comprising: -
moving the distal end of the tube to the tissue site within the body of the patient;
positioning the distal end of the elongated member at a first desired location;
moving the tube with respect to the elongated member so that the distal end of the tube is at a second desired location while the position of the distal end of the elongated member is maintained at the first desired location;
determining the distance between the first desired location and the second desired location by observing the distance indicia at the proximal end of the elongated member. - View Dependent Claims (83, 84, 85)
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86. A method of mapping a feature of a tissue site of a patient with a surgical coordinate instrument and a surgical measuring instrument, the surgical coordinate instrument including a tube and a coordinate ruler reciprocable with respect to the tube between a retracted position and an extended position, the coordinate ruler including a distal end and distance indicia, the surgical measuring instrument including a tube and a ruler reciprocable with respect to the tube between a retracted position and an extended position, the ruler including a distal end and distance indicia, the method comprising:
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moving a portion of the tube of the coordinate instrument to the tissue site with at least part of the coordinate ruler retracted, piercing the tissue with a portion of the coordinate ruler at a selected fixation point to temporarily anchor the distal end of the coordinate ruler to the tissue at the fixation point, moving the tube with respect to the coordinate ruler so that the coordinate ruler is in the extended position;
moving a portion of the tube of the measuring instrument to the tissue site with at least part of the ruler retracted, placing the distal end of the ruler at a desired location related to the feature to be mapped, moving the tube with respect to the ruler until a portion of the measuring instrument crosses the coordinate ruler;
determining the distance between a portion of the surgical measuring instrument and the coordinate ruler. - View Dependent Claims (87, 88)
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89. A surgical instrument having a proximal end and a distal end, the instrument comprising:
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a handle at the proximal end;
a tube extending distally from the handle, the tube defining a channel;
a first gear rotatably mounted to the handle, the first gear having a plurality of grooved teeth;
a second gear rotatably mounted to the handle, the second gear having a plurality of grooved teeth intermeshed with the grooved teeth of the first gear, the grooves of the intermeshed teeth of the first gear and second gear defining a passageway aligned with the channel of the tube; and
an elongated member extending through the passageway and into the channel of the tube, the elongated member being movable in a proximal direction by rotating the first gear in one direction and being movable in the distal direction by rotating the first gear in the opposite direction;
wherein the elongated member has a distal end and includes distance indicia at the distal end. - View Dependent Claims (90, 91, 92)
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Specification