Tissue penetrating device and methods for using same
First Claim
Patent Images
1. An apparatus comprising:
- a. a tissue penetrator disposed in a distal portion of the apparatus;
b. a solenoid for controlling penetrator penetration speed and depth;
c. a motor adapted to rotate the solenoid and the penetrator,d. a power supply and associated circuitry for supplying electrical power to the solenoid;
e. a switch for starting and stopping the solenoid;
f. a housing surrounding the penetrator, the solenoid and the power supply; and
g. a disposable, biased retractable protector having a septum at its distal end and a bias member,where the protector is detachably connected to a distal end of the apparatus and protects a tip of the penetrator and where electric power supplied to the solenoid allows the penetrator to penetrate a tissue site at a controlled rate and to a controlled depth.
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Abstract
A device for tissue, especially hard tissue, penetration which incorporated a novel paddle-shaped needle for low friction rotatory penetration of the tissue. A controlled delivery or extraction system is also disclosed for the transfer of material from the device into a tissue site or transfer of material from the tissue site to the device. The delivery system or extraction system includes at least on solenoid or other similar device.
917 Citations
24 Claims
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1. An apparatus comprising:
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a. a tissue penetrator disposed in a distal portion of the apparatus; b. a solenoid for controlling penetrator penetration speed and depth; c. a motor adapted to rotate the solenoid and the penetrator, d. a power supply and associated circuitry for supplying electrical power to the solenoid; e. a switch for starting and stopping the solenoid; f. a housing surrounding the penetrator, the solenoid and the power supply; and g. a disposable, biased retractable protector having a septum at its distal end and a bias member, where the protector is detachably connected to a distal end of the apparatus and protects a tip of the penetrator and where electric power supplied to the solenoid allows the penetrator to penetrate a tissue site at a controlled rate and to a controlled depth. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus comprising:
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a. a housing; b. a solenoid mounted in a middle portion of an interior of the housing; c. a power supply and associated circuitry mounted in an upper portion of the interior of the housing and connected to the solenoid for supplying electrical power to the solenoid; d. a motor mounted in the interior of the housing and connected to the power supply; e. a torque sensor adapted to sensor changes in a motor torque, f. a tissue penetrator disposed in a distal portion of the interior of the housing and connected to the solenoid; g. a switch for starting and stopping the solenoid; and h. a disposable, biased retractable protector having a septum at its distal end for protecting a tip of the penetrator, where electric power supplied by the power supply to the solenoid in a push mode pushes the penetrator into a tissue site including bone at a controlled rate and to a controlled depth and where electric power supplied by the power supply to the solenoid in a pull mode pulls the penetrator from the tissue site at a controlled rate, and where electric power supplied by the power supply to the motor and the circuitry controls a motor speed and a motor direction, and where electrical power supplied to the torque sensor and the circuitry turns the motor off when a change in torque evidences a transition from bone to soft tissue. - View Dependent Claims (7, 8, 9, 10)
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11. An apparatus comprising:
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a. a housing; b. a power supply and associated circuitry mounted in an upper portion of the interior of the housing; c. a motor mounted in the interior of the housing and connected to the power supply; d. a torque sensor adapted to sensor chances in a motor torque, e. a solenoid mounted in the interior of the housing and connected to the power supply; f. a tissue penetrator disposed in a bottom portion of the interior of the housing; g. a switch for starting and stopping the motor and the solenoid; and h. a disposable, biased retractable protector having a septum at its distal end for protecting a tip of the penetrator, where electric power supplied by the power supply to the motor rotates the penetator at a controlled rate either in a cutting direction or a retracting direction and where electric power suppled by the power supply to the solenoid in a push mode pushes the penetrator into a tissue site including bone at a controlled rate and to a controlled depth while the motor rotates the penetator in the cutting direction and where electric power supplied by the power supply to the solenoid in a pull mode pulls the penetrator from the tissue site at a controlled rate while the motor rotates the penetator in the retracting direction, and where the electrical power supplied to the torque sensor and the circuitry turns the motor off when a change in torque evidences a transition from bone to soft tissue. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus comprising:
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a. a tissue penetrator disposed in a distal portion of the apparatus; b. a solenoid for controlling penetrator penetration speed and depth; c. a motor adapted to rotate the solenoid and the penetrator, d. a torque sensor adapted to sensor changes in a motor torque, e. a power supply and associated circuitry for supplying electrical power to the solenoid; f. a switch for starting and stopping the solenoid; g. a housing surrounding the penetrator, the solenoid and the power supply; and h. a disposable, biased retractable protector having a septum at its distal end and a bias member, where the protector is detachably connected to a distal end of the apparatus and protects a tip of the penetrator, and where the electrical power supplied to the solenoid allows the apparatus to penetrate a tissue site including bone at a controlled rate and to a controlled depth, and where the electrical power supplied to the motor and the circuitry controls a motor speed and a motor direction, and where the electrical power supplied to the torque sensor and the circuitry turns the motor off when a change in torque evidences a transition from bone to soft tissue. - View Dependent Claims (21, 22, 23, 24)
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Specification