Echogenically enhanced surgical instrument and method for production thereof
First Claim
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1. An echogenically enhanced surgical instrument for insertion into the body and used in conjunction with an ultrasound imaging system adapted to direct an incident beam of a given wavelength into the body, the instrument comprising:
- a smooth surface on that protion of the instrument which is to be inserted into the body,a roughened surface adjacent to said smooth surface and on that portion of the instrument which is to be inserted into the body, said roughtened surface having a roughness between sub-micron and 500 microns, andwherein said smooth surface and said roughened surface define a recognizable and distinct border therebetween.
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Abstract
A surgical instrument such as a needle is particle-blasted with particles approximately 50 microns in diameter to produce a uniformly roughened surface portion for use with an ultrasound imaging system to provide real-time monitoring of the location of a specific portion of the needle during insertion and guidance inside the patient'"'"'s body.
289 Citations
21 Claims
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1. An echogenically enhanced surgical instrument for insertion into the body and used in conjunction with an ultrasound imaging system adapted to direct an incident beam of a given wavelength into the body, the instrument comprising:
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a smooth surface on that protion of the instrument which is to be inserted into the body, a roughened surface adjacent to said smooth surface and on that portion of the instrument which is to be inserted into the body, said roughtened surface having a roughness between sub-micron and 500 microns, and wherein said smooth surface and said roughened surface define a recognizable and distinct border therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An echogenically enhanced surgical instrument for insertion into the body and used with an ultrasound imaging system adapted to direct an incident beam of a given wavelength into the body, the instrument comprising:
a surface on that portion of the instrument which is to be inserted into the body, the surface being randomly roughened by particle-blasting with particles having a size between sub-micron and 500 microns, the particle-blasting defining a distinctly recognizable geometric shape at a predetermined position along the instrument. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method of producing a significantly echogenically enhanced surgical instrument for insertion into and guidance through the body and for use with an ultrasound imaging system, comprising the steps of:
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providing a surgical instrument have a leading edge and a substantially smooth surface, both of which being on that position of the instrument which is to be inserted into the body; and particle-blasting a portion of said surface with particles having a size between sub-micron and 500 microns wherein said particle-blasted portion defines a recognizable and distinct border between the particle-blasted portion and the portion of said smooth surface which remains smooth. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification