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Echo reflection enhanced device

A technology of echo reflection and ultrasonic imaging, which is applied in the directions of echo/ultrasound imaging agent, acoustic wave diagnosis, infrasonic wave diagnosis, etc., and can solve problems such as hindering the operator's observation and whitening

Inactive Publication Date: 2014-02-19
WL GORE & ASSOC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conversely, if the target is vertical, the sound waves reflected directly back can cause a "white out" effect, preventing the operator from viewing the target

Method used

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  • Echo reflection enhanced device
  • Echo reflection enhanced device
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: Materials

[0028] A stainless steel needle with a diameter of 0.040" and a length of approximately 4.8" was used as the echogenic reflection enhancement test object. Use unmodified needles as controls to compare modification results. The echogenicity of stainless steel needles with multiple pores covered by polymer films as described in the present invention was also compared with needles coated with Angiotech (Angiotech Pharmaceuticals, Inc., Vancouver, British Columbia, Canada). , No. 1618 Station Street, postcode V6A1B6) for comparison. The pores are staggered at 45°, 0.178 mm in diameter, and 0.38 mm apart.

Embodiment 2

[0029] Example 2: Method

[0030] Three different methods were used to evaluate and compare the treated samples.

[0031] All samples were submitted to the sonic imaging system. The test apparatus consisted of a 7.5 MHz transmit / receive transducer mounted on a flat bar with a sample holder located approximately 2.5 cm from the focal length of the transducer. The 7.5 MHz transducer produces a wavelength (λ) of 200 microns. At 2.5 cm, the signal is approximately 1 mm wide. The needle sample is placed in a holder perpendicular to the axis of the transmitting transducer. This is 0 degrees. The sample holder is removable for easy sample replacement. The holder is magnetically held in a rotatable goniometer to measure the angle of the sample relative to the transmitting and receiving transducers. The samples and transducers were immersed in a room temperature water bath. Each sample was aligned with the transducer prior to data acquisition. This is done by increasing the att...

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Abstract

Devices with enhanced visualization in ultrasound imaging are provided.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Provisional Application Serial No. 61 / 483,094, filed May 6, 2011. field of invention [0003] The present invention relates to devices with enhanced echogenicity for better visualization in ultrasound imaging and methods for enhancing the echogenicity of the devices. Background of the invention [0004] Ultrasound technology has advantages over other imaging modalities. In addition to the health advantages of reducing or eliminating exposure to X-rays (fluoroscopy), the required equipment is small enough to be mobile, and it has advantages in the diagnosis of subsurface tissue morphology. In addition, ultrasound transducers can be made small enough to be placed inside the body, where they can provide resolution superior to existing magnetic resonance imaging and X-ray computed tomography. Furthermore, device enhancements that increase echogenicity to accommodate ultrasound allow ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L31/18A61B8/08A61K49/22A61B17/00A61L31/00
CPCA61L27/34A61B2019/5425A61B17/3403A61B19/54A61L27/56A61L31/146A61L31/10A61L27/50A61L31/14A61B8/0841A61B2017/3413A61B90/39A61B2090/3925C08L27/18A61B8/08A61B17/00A61K49/22A61L31/18A61L2420/00
Inventor E·H·库利K·M·弗勒里
Owner WL GORE & ASSOC INC