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ultrasonic probe

A probe, ultrasonic technology, applied in the field of ultrasonic probes, can solve problems such as high infection rate

Active Publication Date: 2016-12-07
UNIV OF WASHINGTON CENT FOR COMMERICIALIZATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Higher infection rates have been reported when multiple EVD placement attempts are required

Method used

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Embodiment Construction

[0034]Exemplary probes and methods for installing catheters in accordance with the present invention will now be described with reference to the accompanying drawings, wherein like numerals represent like parts. FIG. 1A schematically illustrates a coronal cross-sectional view showing a mammalian head 90 in which a catheter 91 is implanted into a brain 95 using a conventional hardwire probe 92 . The surgeon accesses the brain 95 through a small hole 93 formed in the skull 94. The probe 92 is used to push the flexible catheter 91 through the brain tissue 95 until it enters the target ventricle 96.

[0035] FIG. 1B schematically illustrates a mammalian head 90 with the angular positioning of the probe 92 slightly off target, causing the catheter 91 to completely miss the intended target ventricle 96 .

[0036] As mentioned above, it is difficult to align the probe 92 with the target ventricle 96 solely by relying on external markers. The task is challenging even if an MRI scan ...

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Abstract

A stylet (100) includes a handle assembly (102) with an indicator display (112) and a stiff wire assembly (120) extending distally from the handle assembly (102) having a non-imaging ultrasonic device on a distal end. The stylet includes a circuit assembly having one or more of a pulser (120), a transmit / receive chip (132), a bandpass filter (134), a differential amplifier (136), an ADC (138), and an MCU (140), operable to control the operation of the ultrasonic device and to receive and analyze data from the ultrasonic device to facilitate implantation of a device such as a catheter.

Description

[0001] Government License Statement [0002] This invention was made with government support under W81XWH-11-2-0109 awarded by the U.S. Army Medical Research and Materiel Command. The government has certain rights in this invention. technical background [0003] Elongated members or devices, such as needles, stents, catheters, etc., are widely used in modern medicine for a variety of purposes. For example, such elongated devices are used for drug delivery, biopsy, mechanical treatment of tissue, removal or relief of obstructions, decompression, and the like. Often the precise positioning of these devices is key to achieving the desired effect. However, precisely targeting and intersecting specific internal locations in a three-dimensional human body is a challenging endeavor. [0004] The placement of the equipment is often carried out manually. Physicians rely on external landmarks, anatomical knowledge, experience, and skill to place devices precisely. Recent advances i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/12G01N29/24A61N7/00
Inventor P·D·摩纳德S·R·布朗德R·莫丝B·迈克纳格希N·科尔森
Owner UNIV OF WASHINGTON CENT FOR COMMERICIALIZATION
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