Protector retractor
First Claim
Patent Images
1. A surgical retractor, comprising:
- (a) a handle portion including a grip by which the retractor is manipulated;
(b) a staff attached to said handle portion and having a distal end;
(c) a head on said distal end, said head having a contoured surface;
(d) a piezoelectric sensor carried by said contoured surface of said head, said sensor generating signals;
(e) a microcomputer electrically connected to said sensor, said microcomputer including means for selectively programming said microcomputer;
(f) at least one visual display communicating with said microcomputer to provide displays indicative of the signals from said sensor; and
(g) an audible alarm communicating with said microcomputer to provide an audible response indicative of the signals from said sensor.
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Accused Products
Abstract
A handle carries a dry cell battery which supplies current to a microprocessor which receives signals from a sensor on the end of a bill carried by a staff which projects from the handle. The signal to the microprocessor is converted to a display on the handle. The display has alarms to indicate when the retractor applies too much force to a spinal cord or when the force has been applied for too long a time.
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Citations
20 Claims
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1. A surgical retractor, comprising:
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(a) a handle portion including a grip by which the retractor is manipulated; (b) a staff attached to said handle portion and having a distal end; (c) a head on said distal end, said head having a contoured surface; (d) a piezoelectric sensor carried by said contoured surface of said head, said sensor generating signals; (e) a microcomputer electrically connected to said sensor, said microcomputer including means for selectively programming said microcomputer; (f) at least one visual display communicating with said microcomputer to provide displays indicative of the signals from said sensor; and (g) an audible alarm communicating with said microcomputer to provide an audible response indicative of the signals from said sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A surgical retractor used by an operator for applying a force to tissue in the body of a person during a surgical procedure, comprising:
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(a) a handle for being held by the operator externally of the body; (b) an elongate staff removably carried by said handle, said staff having a proximal and a distal portion including a head remote from said proximal portion, said proximal portion being connected to said handle so that it may be manipulated by manipulation of said handle; (c) a sensor carried on the head of said staff and being capable of delivering a signal; (d) a visual indicating member positioned on said handle, said indicating member being constructed and arranged to receive the signal from said sensor to display the amount of force applied to the tissue by the head of said staff; and (e) an alarm carried by the handle to audibly indicate when a predetermined amount of force is exceeded. - View Dependent Claims (12, 13, 14)
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15. A surgical retractor suitable for retracting and protracting body tissue, said retractor comprising
(a) a handle portion with a grip by which the retractor may be manipulated by a person; -
(b) a portable electrical power source within said handle portion; (c) a retractor staff operably connected to said handle portion and extending through an intermediate portion to a generally U-shaped distal end having an inner face and an outer face, (i) said intermediate stem portion configured in an arcuate shape and arranged in a plane, (ii) said distal end having a reverse bend portion from the end of said stem, (iii) a flat let leg portion, and (iv) a short distal leg portion extending from said flat leg portion at an obtuse angle of from 100 to about 120 degrees. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification