Rotatable laparoscopic puncturing instrument
First Claim
1. A laparoscopic insufflation needle having a longitudinal axis, a distal end an operative end, comprising:
- a rotatable body tissue puncturing means, the puncturing means having a distal end, an operative end and a longitudinal axis, such that the puncturing means rotates about its longitudinal axis, the puncturing means being adapted to be rotated by a motor;
a safety shield movable between an extended position in which the shield prevents the puncturing means from puncturing body tissue and a retracted position in which the shield allows the puncturing means to puncture body tissue, and the safety shield being biased toward its extended position;
a light emitting viewport positioned within the puncturing means and positioned at the distal end of the needle;
a light receiving viewport positioned within the puncturing means and positioned at the distal end of the needle;
a light emitting optic fiber having opposing ends, disposed within the needle, and operatively connected to the emitting viewport at one of its ends and extending to the operative end of the needle at its opposing end;
a receiving optic fiber having opposing ends, disposed within the needle, and operatively connected to the receiving viewport at one of its ends and extending to the operative end of the needle at its opposing end;
a means for introducing gas or fluid into the needle; and
a means for allowing gas or fluid to flow outward from the distal end of the needle.
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Accused Products
Abstract
An insufflation needle having a viewing system at its distal end and a trocar, both of which can be inserted through rotation of the puncturing element of the instrument, and a method of using these instruments. Both the insufflation needle and the trocar include a rotatable puncturing mechanism and a safety shield which allow the instruments to be safely inserted into body tissue through the use of a drill thereby requiring less force and reducing the possibility of trauma to the patient. The insufflation needle also includes a viewing system which allows the surgeon to view the distal end of the needle while it is being inserted into body tissue as well as to view the distal end of the trocar once it reaches a destination within the abdominal cavity proximate the distal end of the needle. The system reduces the risk of improper placement of both the needle and the trocar to thereby result in a safe laparoscopic surgical procedure.
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Citations
8 Claims
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1. A laparoscopic insufflation needle having a longitudinal axis, a distal end an operative end, comprising:
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a rotatable body tissue puncturing means, the puncturing means having a distal end, an operative end and a longitudinal axis, such that the puncturing means rotates about its longitudinal axis, the puncturing means being adapted to be rotated by a motor; a safety shield movable between an extended position in which the shield prevents the puncturing means from puncturing body tissue and a retracted position in which the shield allows the puncturing means to puncture body tissue, and the safety shield being biased toward its extended position; a light emitting viewport positioned within the puncturing means and positioned at the distal end of the needle; a light receiving viewport positioned within the puncturing means and positioned at the distal end of the needle; a light emitting optic fiber having opposing ends, disposed within the needle, and operatively connected to the emitting viewport at one of its ends and extending to the operative end of the needle at its opposing end; a receiving optic fiber having opposing ends, disposed within the needle, and operatively connected to the receiving viewport at one of its ends and extending to the operative end of the needle at its opposing end; a means for introducing gas or fluid into the needle; and a means for allowing gas or fluid to flow outward from the distal end of the needle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification