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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0797318 (1977-05-16) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 327 인용 특허 : 0 |
A system for detecting and monitoring the position of a catheter tip during insertion and after placement of the catheter in a body cavity. A coupling means such as an inductor coil is secured adjacent the catheter tip, and leads extend from the coil along the catheter for connection to external ind
A system for detecting and monitoring the position of a catheter tip during insertion and after placement of the catheter in a body cavity. A coupling means such as an inductor coil is secured adjacent the catheter tip, and leads extend from the coil along the catheter for connection to external indicating equipment. Energy is propagated through the body to the coupling means from an external source such as an oscillator-driven coil or coils, and relative proximity and orientation of the external and catheter coils is determined by monitoring amplitude and phase of the signal induced in the catheter coil.
A locating system for determining the position of a medical catheter inserted in a body, comprising: an elongated catheter having a first end adapted for insertion in the body, and a second end which remains external to the body during insertion and use of the catheter; a receiver coupling means mou
A locating system for determining the position of a medical catheter inserted in a body, comprising: an elongated catheter having a first end adapted for insertion in the body, and a second end which remains external to the body during insertion and use of the catheter; a receiver coupling means mounted on the catheter adjacent the first end, the receiver coupling means having at least two terminals and being adapted to receive energy radiated from a remote source, and to generate a signal between the terminals which is analogous to the received energy; connection means connected to the terminals of the receiver coupling means and extending along the catheter toward the second end to terminate outside the body; generating means external to the body for generating a body-penetrating energy field detectable by the receiver coupling means; and indicating means connected to the connection means for displaying the extent of coupling between the generating means and receiver coupling means, and thereby indicating the position of the catheter first end within the body.
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