Reflection enhancement of a biopsy needle
First Claim
Patent Images
1. Apparatus for performing surgical procedures upon select, internal body tissues, comprising:
- (a) a pulse-echo ultrasound imaging system for imaging the area of the body including said tissues, said imaging system including transducer means adapted to be accoustically coupled to the exterior of the body; and
(b) surgical instrument means for insertion into the body for performing said surgical procedures, said surgical instrument means having a surface A comprising a diffraction grating for enhancing the reflection coefficient of the surgical instrument means.
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Abstract
Method and apparatus for enhancing the reflection coefficient of a surgical instrument for use in conjunction with an apparatus for pulse-echo ultrasound imaging of an area of the body, by means of a diffraction grating disposed on the surgical instrument.
259 Citations
14 Claims
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1. Apparatus for performing surgical procedures upon select, internal body tissues, comprising:
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(a) a pulse-echo ultrasound imaging system for imaging the area of the body including said tissues, said imaging system including transducer means adapted to be accoustically coupled to the exterior of the body; and (b) surgical instrument means for insertion into the body for performing said surgical procedures, said surgical instrument means having a surface A comprising a diffraction grating for enhancing the reflection coefficient of the surgical instrument means. - View Dependent Claims (2, 3, 4, 5)
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6. A surgical instrument for insertion into the body and used in conjunction with a pulse-echo ultrasound imaging system for performing surgical procedures, said imaging system including a transducer adapted to direct an incident beam of a given wavelength into the body, and said surgical instrument comprising:
a leading edge having a surface including a diffraction grating for enhancing the reflection coefficient of the leading edge of the surgical instrument. - View Dependent Claims (7, 8, 9, 10)
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11. In a surgical procedure, a method of monitoring an object within the body, said object including a diffraction grating, and the method comprising the steps of:
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(a) irradiating a body area utilizing pulse-echo ultrasound techniques; (b) inserting said object into said body area; and (c) producing an image of said body area, including the enhanced reflection of the diffraction grating of the object. - View Dependent Claims (13)
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12. In a surgical procedure, a method of monitoring an object within the body, said object including a diffraction grating on a surface A of said object to enhance the reflection coefficient thereof, said diffraction grating comprising a multiplicity of substantially parallel grooves, the distance between the depth of adjacent grooves being defined as follows:
- ##EQU5## where N is an integer, θ
is equal to the angle between an incident ultrasound beam of center wavelength λ
o and a line along surface A and perpendicular to said grooves;
the method comprising the steps of;(a) irradiating a body area utilizing pulse-echo ultrasound techniques with an ultrasound beam of center wavelength λ
o;(b) inserting said object into said body area; and (c) producing an image of said body area, including the enhanced reflection of the diffraction grating of the object. - View Dependent Claims (14)
- ##EQU5## where N is an integer, θ
Specification