Medical device introducer
First Claim
Patent Images
1. An introducer device, comprising:
- a guide unit defining a range of motion;
a holder assembly capable of receiving attachment of a primary medical device, the holder assembly traveling along the range of motion of the guide unit; and
a pistol grip housing comprising;
a handheld advancer assembly operably connected to the guide unit; and
a thumb wheel advancer system connected to the handheld advancer assembly and located remote from the guide unit, a thumb wheel operable to be rotated around a thumb wheel axis, wherein the thumb wheel advancer system translates rotation of the thumb wheel about the thumb wheel axis into motion of the holder assembly along the range of motion.
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Abstract
An introducer is described that is coupled to a patient, specifically a patient'"'"'s skull. The introducer may include an advancer that is remote from the patient, the advancer communicating with the introducer by means of a cable system. The introducer may also include a local position sensor that indicates the position of the primary medical device being introduced. The introducer may also include a frameless reference system that locates the primary medical device relative to a table that the patient is fixed to.
227 Citations
35 Claims
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1. An introducer device, comprising:
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a guide unit defining a range of motion; a holder assembly capable of receiving attachment of a primary medical device, the holder assembly traveling along the range of motion of the guide unit; and a pistol grip housing comprising; a handheld advancer assembly operably connected to the guide unit; and a thumb wheel advancer system connected to the handheld advancer assembly and located remote from the guide unit, a thumb wheel operable to be rotated around a thumb wheel axis, wherein the thumb wheel advancer system translates rotation of the thumb wheel about the thumb wheel axis into motion of the holder assembly along the range of motion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An introduction system, comprising:
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a trajectory guide device; a primary medical device; an introducer device associated with the trajectory guide and supported by a user, comprising; a guide unit having a range of motion along a first axis; a holder assembly capable of receiving attachment of the primary medical device, the holder assembly traveling along the range of motion of the guide unit; a rotating wheel advancer located remote from the guide unit; and an MR compatible cable that operably couples the rotating wheel advancer to the holder assembly, wherein input from the rotating wheel advancer controls motion of the holder assembly along the range of motion by moving the cable along a second axis different from the first axis. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. An introduction system comprising:
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a trajectory guide device and a fixation member, wherein the trajectory guide device is attached directly to a patient with the fixation member; an introducer device attached to the trajectory guide, comprising; a guide unit having a range of motion; a holder assembly capable of receiving attachment of a primary medical device, the holder assembly traveling along the range of motion of the guide unit; and a user supported housing attached to an adjusting wheel system including a thumb wheel coupled locally to the guide unit, wherein the thumb wheel is operable to rotate around an axis of rotation and the adjusting wheel system translates the rotary motion of the thumb wheel around the axis of rotation into substantially linear motion of the holder assembly along the range of motion; and a primary medical device attached to the holder assembly. - View Dependent Claims (25, 26)
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27. A method of introducing a primary medical device into a patient with at least a guide unit, a holder assembly, and an advancer, comprising:
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attaching the guide unit to the patient; attaching the primary medical device to the holder assembly; coupling a cable to the holder assembly; coupling the cable to a wheel advancer of the advancer; supporting the wheel advancer by a user; positioning the wheel advancer at a location remote from the guide unit; rotating the wheel advancer around a fixed axis to form tension on at least one of the cable or the holder assembly, wherein the tension applies a force to the holder thus moving the holder assembly along a range of motion defined by the guide unit; wherein the cable translates non-coaxially with the holder assembly. - View Dependent Claims (28, 29)
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30. A calibrated introducer device, comprising:
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an advancer assembly sized and configured to be supported in a single hand of a user, including; a guide unit defining a range of motion; a holder assembly capable of receiving attachment of a primary medical device, the holder assembly traveling along the range of motion of the guide unit; and a thumb wheel advancer including a thumb wheel located remote from the guide unit and operable to be moved with a thumb of the single hand; an MR compatible cable that operatively couples the thumb wheel to the holder assembly, wherein input from the thumb wheel controls motion of the holder assembly along the range of motion; a local position sensor mounted to the guide unit, wherein a position of the holder assembly along the range of motion is sensed; and a remote user interface, operably coupled to the local position sensor, wherein the remote user interface displays the position of the holder assembly along the range of motion. - View Dependent Claims (31, 32, 33, 34)
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35. An introducer device, comprising:
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a guide assembly including; a guide unit defining a range of motion; a holder assembly adapted to be connected to a primary medical device, wherein the holder assembly is adapted to move along the guide unit over at least a portion of the range of motion; a body defining a through hole, wherein the guide unit is coupled to the body and the primary medical device is operable to pass through the through hole in the body; and a primary medical device positioning plate adjustably attached to the body and operable to engage the primary medical device to substantially position the primary medical device within the through hole; and a handheld advancer assembly supported by a user including; a pistol grip portion operable to be held within a hand of the user; a thumb wheel advancer system connected to the pistol grip portion and located remote from the guide unit including a thumb wheel operable to be moved with a thumb of the user; a trigger member connected to the pistol grip portion operable to be actuated by a digit of the user to engage the thumb wheel to allow restricted movement of the thumb wheel or disengage the thumb wheel to allow free wheel movement of the thumb wheel; and a cable having a first end that extends from a first side of the thumb wheel and a second end that extends from a second side of the thumb wheel and a middle portion that couples to the holder assembly, wherein movement of the thumb wheel controls motion of the holder assembly along the range of motion; wherein the thumb wheel rotates around a thumb wheel axis; wherein the thumb wheel advancer system translates rotation of the thumb wheel about the thumb wheel axis into motion of the holder assembly along the range of motion.
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Specification