WO2019066164A1 - 자기 센서 최적 위치를 위한 초음파 프로브 - Google Patents
자기 센서 최적 위치를 위한 초음파 프로브 Download PDFInfo
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- WO2019066164A1 WO2019066164A1 PCT/KR2018/002175 KR2018002175W WO2019066164A1 WO 2019066164 A1 WO2019066164 A1 WO 2019066164A1 KR 2018002175 W KR2018002175 W KR 2018002175W WO 2019066164 A1 WO2019066164 A1 WO 2019066164A1
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- WIPO (PCT)
- Prior art keywords
- ultrasonic transducer
- magnetic sensor
- ultrasonic
- sensor module
- sensor guide
- Prior art date
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/42—Details of probe positioning or probe attachment to the patient
- A61B8/4245—Details of probe positioning or probe attachment to the patient involving determining the position of the probe, e.g. with respect to an external reference frame or to the patient
- A61B8/4254—Details of probe positioning or probe attachment to the patient involving determining the position of the probe, e.g. with respect to an external reference frame or to the patient using sensors mounted on the probe
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
Definitions
- the present invention relates to an ultrasonic probe for an optimal position of a magnetic sensor. More particularly, the present invention relates to an ultrasonic probe for transmitting a magnetic signal and an ultrasonic signal to and from a magnetic sensor module 31 and an ultrasonic transducer 32, And an ultrasonic probe for an optimal position of the sensor.
- the position information of the analog type needle detection system has been detected by using the magnetic sensor module 31 in advance, so that the position information can be confirmed in the ultrasound image and the accurate operation can be performed at the position of the patient lesion.
- Patent Document 1 Publication No. 10-2015-0123233, an image guide procedure system
- Patent Document 2 Publication No. 10-2014-0082686, an imaging probe and a method for acquiring position and / or direction information
- the present invention also provides an ultrasonic probe for an optimal position of a magnetic sensor.
- an ultrasonic transducer including: an ultrasonic transducer for transmitting and receiving ultrasonic waves; A sensor guide (33) surrounding the ultrasonic transducer; And a magnetic sensor module (31) located on one side of the ultrasound transducer and on the other side of the bulkhead to receive and output a magnetic signal.
- the surface of the magnetic sensor module (31) Respectively.
- the ultrasonic probe further includes a strain relief 10 connecting the probe handle and the cable; A plastic handle housing 20 for holding internal components; And a plastic nose 30 for fixing the ultrasonic transducer 32 and the magnetic sensor module 31 to each other.
- the plastic nose 30 has a nose piece groove 30-1 for minimizing the distance between the magnetic sensor module 31 and the surface of the ultrasonic transducer 32 by fixing the mechanical foot 33-3 of the sensor guide 33, ); And a nosepiece rib 30-3 for receiving the side surface of the sensor guide 33 and mechanically fixing the sensor guide 33 with respect to the three axial directions.
- the sensor guide 33 includes a mechanical code 33-1 indicating an accurate mounting direction of the magnetic sensor module 31; A mechanical lock 33-2 for mechanically fixing the magnetic sensor module 31; A mechanical foot 33-3 for accurately fixing the sensor guide 33 to the nose piece groove 30-1; A mechanical rib 33-4 for preventing warpage of the sensor guide 33 and mechanically setting the surface height of the plastic nose 30 and the ultrasonic transducer 32; And a mechanical supporter 33-5 for fixing the ultrasonic transducer 32 to the rear when the ultrasonic transducer 32 is inserted into the sensor guide 33. [
- the acoustic lens of the ultrasonic transducer 32 has a thickness of at least 0.5 to a maximum of 0.7 millimeters, and the nosepiece 30 has a thickness of 1.0 to 1.5 millimeters to ensure the durability and reliability of the ultrasonic probe.
- the height of the magnetic sensor module 31 is at least 2 millimeters in the 7.5 megahertz ultrasonic transducer 32 in consideration of the optimum thickness of the nose piece 30 and the sensor guide 33 is mounted on the magnetic sensor module 31
- the thickness of the surface surrounding the ultrasonic transducer 32 is at least 1 millimeter.
- the magnetic sensor module 31 can be disposed at the optimum position, and the needle position can be displayed on the ultrasound image without interference between the magnetic signal and the ultrasonic signal .
- the magnetic sensor module 31 and the ultrasonic transducer 32 are fixedly coupled while minimizing the distance between the surface of the magnetic sensor module 31 and the surface of the ultrasonic transducer 32.
- the sensor guide 33 can be designed and fabricated so as to ensure the durability and reliability of the ultrasonic probe and not to affect the magnetic sensor module 31.
- 1 is an exemplary view showing an ultrasonic probe.
- FIG 2 is an exemplary view showing an ultrasonic probe in which the plastic nose 30 is removed.
- FIG 3 is an illustration showing an ultrasonic probe in which the plastic handle housing 20, the magnetic sensor module 31, and the plastic nose 30 are removed.
- FIG 4 is an illustration showing an ultrasonic probe in which the plastic handle housing 20 and the plastic nose 30 are removed.
- FIG 5 is an illustration showing an example in which the ultrasonic transducer 32 and the magnetic sensor module 31 are coupled to the plastic nose 30.
- FIG. 6 is an exemplary view in which the ultrasonic transducer 32 and the magnetic sensor module 31 are coupled to the sensor guide 33.
- FIG. 6 is an exemplary view in which the ultrasonic transducer 32 and the magnetic sensor module 31 are coupled to the sensor guide 33.
- FIG. 7 is an exploded perspective view of the plastic nose 30, the sensor guide 33, the magnetic sensor module 31, and the ultrasonic transducer 32. As shown in Fig.
- Fig. 8 is an exemplary view showing the sensor guide 33. Fig.
- Fig. 9 is an exemplary view showing a plastic nose 30; Fig.
- 11 is an exemplary view showing the manufacture of the sensor guide 33 for fixing the magnetic sensor module and blocking the interference between the magnetic signal and the ultrasonic signal.
- FIG. 12 is an exemplary view showing the positioning of the magnetic sensor module 31 in the sensor guide 33 for optimal detection of magnetic signals in the ultrasound image.
- FIG. 13 is an exemplary view showing a technical description for designing the position of the magnetic sensor module 31. As shown in FIG.
- FIG. 14 is an exemplary view showing the information of human acupuncture points for designing the position of the magnetic sensor module 31 in the sensor guide 33 for confirming the position of the self-healing position information through the ultrasound image during the acupuncture points of the acupuncture points and securing the safety of the patient to be.
- 1 is an exemplary view showing an ultrasonic probe.
- the ultrasonic probe includes a strain relief (10) connecting the probe handle and the cable; A plastic handle housing 20 for holding internal components; And a plastic nose 30 for fixing the ultrasonic transducer 32 and the magnetic sensor guide 33 to each other.
- the strain relief 10 connects the probe handle and the cable, and provides a desired motion when ultrasonic scanning is performed, and functions to protect the inside of the ultrasonic probe handle and the cable.
- the plastic handle housing 20 protects and secures internal components.
- the plastic handle housing 20 can provide a handle for holding the ultrasonic probe by hand.
- the plastic nose 30 fixes the ultrasonic transducer 32 and the magnetic sensor guide 33.
- the plastic nose 30 is an outer shell and protects the ultrasonic transducer 32 and the magnetic sensor module 31.
- the plastic nose 30 abuts the skin surface.
- FIG 2 is an exemplary view showing an ultrasonic probe in which the plastic nose 30 is removed.
- the plastic nose 30 is removed, and the magnetic sensor module 31, the sensor guide 33, and the ultrasonic transducer 32 are shown.
- the ultrasonic transducer 32 transmits and receives ultrasonic waves.
- the ultrasonic transducer (32) includes an ultrasonic sound-absorbing layer (32-1) for absorbing ultrasonic waves in a rearward direction; A signal line (FPCB) 32-2 for driving the ultrasonic wave generating piezoelectric element 32-3; An ultrasonic wave generating piezoelectric element 32-3 generating an ultrasonic wave; An ultrasonic matching layer 32-4 for matching the acoustic impedance from the piezoelectric element 32-3 from which ultrasonic waves are generated; And an acoustic lens 32-5 for focusing the ultrasonic waves and protecting the piezoelectric elements.
- the ultrasonic transducer 32 focuses and transmits the ultrasonic waves through the acoustic lens 32-5 and receives the reflected ultrasonic waves. And an ultrasonic image is output by the ultrasonic transducer (32).
- the sensor guide 33 surrounds and protects the ultrasonic transducer 32.
- the magnetic sensor module 31 is located outside the sensor guide 33 and is located at one side and the other side of the ultrasonic transducer 32 and outputs and receives a magnetic signal.
- the magnetic sensor module 31 is located on the front and rear surfaces of the ultrasonic transducer 32.
- the surface of the magnetic sensor module 31 is spaced about 2 mm from the surface of the ultrasonic transducer.
- FIG 3 is an illustration showing an ultrasonic probe in which the plastic handle housing 20, the magnetic sensor module 31, and the plastic nose 30 are removed.
- the plastic handle housing 20, the magnetic sensor module 31 and the plastic nose 30 are removed from the ultrasonic probe and the sensor guide 33 and the ultrasonic transducer 32 are exposed.
- the ultrasonic transducer 32 is coupled to the sensor guide 33.
- FIG 4 is an illustration showing an ultrasonic probe in which the plastic handle housing 20 and the plastic nose 30 are removed.
- a plastic handle housing 20 and an ultrasonic probe in which the plastic nose 30 is removed are shown.
- the magnetic sensor module 31 is coupled to the sensor guide 33.
- the magnetic sensor module 31 exposed in the ultrasonic probe is shown.
- FIG 5 is an illustration showing an example in which the ultrasonic transducer 32 and the magnetic sensor module 31 are coupled to the plastic nose 30.
- the ultrasonic transducer 32 and the magnetic sensor module 31 are coupled to the plastic nose 30.
- FIG. 6 is an exemplary view in which the ultrasonic transducer 32 and the magnetic sensor module 31 are coupled to the sensor guide 33.
- FIG. 6 is an exemplary view in which the ultrasonic transducer 32 and the magnetic sensor module 31 are coupled to the sensor guide 33.
- the ultrasonic transducer 32 and the magnetic sensor module 31 are coupled to the sensor guide 33.
- the ultrasonic transducer 32 is located at the center, and the magnetic sensor module 31 is located at the front and rear surfaces of the ultrasonic transducer 32.
- FIG. 7 is an exploded perspective view of the plastic nose 30, the sensor guide 33, the magnetic sensor module 31, and the ultrasonic transducer 32. As shown in Fig.
- a sensor guide 33 is coupled to the ultrasonic transducer 32 at a perspective view in which the plastic nose 30, the sensor guide 33, the magnetic sensor module 31 and the ultrasonic transducer 32 are disassembled. 33 is coupled to the front and rear surfaces of the magnetic sensor module 31 and the final plastic nose 30 protects the magnetic sensor module 31 and the ultrasonic transducer 32.
- Fig. 8 is an exemplary view showing the sensor guide 33. Fig.
- the sensor guide 33 includes a mechanical code 33-1 indicating an accurate mounting direction of the magnetic sensor module 31; A mechanical lock 33-2 for mechanically fixing the magnetic sensor module 31; A mechanical foot 33-3 for accurately fixing the sensor guide 33 to the nose piece groove 30-1; A mechanical rib 33-4 for preventing warpage of the sensor guide 33 and mechanically setting the surface height of the plastic nose 30 and the ultrasonic transducer 32; And a mechanical supporter 33-5 for fixing the ultrasonic transducer 32 to the rear when the ultrasonic transducer 32 is inserted into the sensor guide 33. [
- the mechanical code 33-1 indicates the correct mounting direction of the magnetic sensor module 31.
- the mechanical lock 33-2 fixes the magnetic sensor module 31 mechanically.
- the mechanical foot 33-3 accurately fixes the sensor guide 33 to the nose piece groove 30-1.
- the mechanical ribs 33-4 prevent the sensor guide 33 from bending and set the surface height of the ultrasonic transducer 32 mechanically.
- the mechanical supporter 33-5 fixes the ultrasonic transducer 32 to the rear when the ultrasonic transducer 32 is inserted into the sensor guide 33.
- Fig. 9 is an exemplary view showing a plastic nose 30; Fig.
- the plastic nose 30 includes a nose piece groove 30-1 for minimizing the distance between the magnetic sensor module 31 and the surface of the ultrasonic transducer 32 by fixing the mechanical foot 33-3 of the sensor guide 33; And a nosepiece rib 30-3 for receiving the side surface of the sensor guide 33 and mechanically fixing the sensor guide 33 with respect to the three axial directions.
- the nose piece groove 30-1 fixes the mechanical foot of the sensor guide 33 to minimize the distance between the magnetic sensor module 31 and the surface of the ultrasonic transducer.
- the nose piece rib 30-3 lifts the side surface of the sensor guide 33 and mechanically fixes the sensor guide 33 with respect to the three axial directions.
- the ultrasonic transducer 32 is located at the center, and the magnetic sensor module 31 is located at the side.
- a sensor guide 33 is provided to block signal interference between the ultrasonic transducer 32 and the magnetic sensor module 31 and a shielding process is performed to prevent interference between the ultrasonic signal and the magnetic signal.
- a magnetic sensor module 31 module in which an associated IC part is mounted is configured in the magnetic sensor module 31.
- the position of the sensor sensor 33 in the sensor guide 33 and the position of the ultrasonic transducer 32 shall be designed to have a height of 2 mm or less.
- 11 is an exemplary diagram showing the manufacture of a sensor guide 33 for blocking interference between a magnetic signal and an ultrasonic signal.
- Ni-Cr or Au which is expensive but more durable and maximizes the shielding effect
- Ni-Cr or Au which is expensive but more durable and maximizes the shielding effect
- the magnetic signal generated in the magnetic sensor module 31 and the ultrasonic signal generated in the ultrasonic transducer 32 can be completely cut off.
- the thin film process can be performed by using sputtering using plasma gas or electroplating.
- the back surface of the magnetic sensor module 31 coupled with the sensor guide 33 can be electrically disconnected by attaching a capstan tape.
- FIG. 12 is an exemplary view showing the positioning of the magnetic sensor module 31 in the sensor guide 33 for optimal detection of magnetic signals in the ultrasound image.
- the ultrasonic transducer 32 includes an ultrasonic sound-absorbing layer 32-1; A signal line (FPCB) 32-2; An ultrasonic wave generating piezoelectric element 32-3; An ultrasonic wave matching layer 32-4; And an acoustic lens 32-5.
- the ultrasonic transducer 32 for the POC market of the ultrasound imaging system usually employs a linear type with a center frequency of 7.5 MHz or more.
- a linear array type ultrasonic transducer (32) of 7.5 MHz or more is used to image tissues 10 to 20 mm deep inside the human body, and an acoustic lens (32-5) for focusing ultrasound energy in consideration of wavelength and attenuation of ultrasonic signals, And is designed to have a thickness of 0.7 mm.
- a biocompatible plastic housing injection is used.
- the thickness of 1.0 to 1.5 mm can guarantee the durability and reliability of the whole ultrasonic probe product .
- the height of the module of the magnetic sensor module 31 must be within a minimum height of 2 mm in the 7.5 MHz class ultrasonic transducer 32,
- the motion of the external needle can be optimized in the ultrasound image.
- the thickness of the sensor guide 33 must be minimized.
- the sensor guide 33 must be made of a plastic material that does not affect the magnetic sensor module 31 and is made of a plastic material.
- the thickness of the surface surrounding the ultrasonic transducer 32 is determined by considering the reliability, It shall be designed to have a minimum thickness of 1 mm. In the present embodiment, the 1 mm thickness is the minimum thickness to prevent deformation of the plastic injection.
- FIG. 13 is an exemplary view showing a technical description for designing the position of the magnetic sensor module 31. As shown in FIG.
- FIG. 13 shows a position (C) when the height of the sensor module is 2 mm (B) and a height of 2 mm or more, a needle tip moving around the ultrasonic signal radiation region D at the position (A) E) can be detected.
- the needle can be detected more accurately at the position of B and can be expressed as an ultrasound image.
- the position of the magnetic sensor module 31 can be divided qualitatively into A: DELTA, B: O, and C: X.
- a certain distance which is the height of the sensor module, is 1 to 3 millimeters.
- the distance is less than 1 millimeter, interference occurs (A).
- the distance is more than 3 millimeters, magnetic signal detection is deteriorated.
- FIG. 14 is an exemplary view showing the information of human acupuncture points for designing the position of the magnetic sensor module 31 in the sensor guide 33 for confirming the position of the self-healing position information through the ultrasound image during the acupuncture points of the acupuncture points and securing the safety of the patient to be
- Oriental medicine doctors are based on experience from anatomical point of view on acupuncture point of patient. At this time, various side effects and risks to patient safety follow.
- the position information of the needle can be checked while viewing the ultrasound image.
- the technology of detecting the needle by using the magnetic sensor module 31 and confirming the needle by the ultrasound image is the core of the present invention.
- the acupuncture points of the human body are distributed in various parts of the human body, and the positions of the acupuncture points are also located at various depths from several millimeters to 30 millimeters on the human body surface.
- the acupuncture points located nearest to the surface of the human body are Gilbang (CV20), Inhyeong (ST9), and Thundol (CV22) corresponding to 4.6 ⁇ 6.9mm,
- the position of the magnetic sensor module 31 should be positioned near the maximum radiation surface of the ultrasonic transducer 32 in order to acquire the position of the needle and the motion information from the ultrasound image in the case of the needle- The detection can be facilitated.
- the position of the magnetic sensor module 31 spaced from the surface contacting the skin is in contact with the same surface as the ultrasonic transducer 32 but the durability of the ultrasonic transducer 32 is maintained and the distance between the magnetic signal and the ultrasonic signal It can be designed to be about 2 millimeters in consideration of being suitable for blocking the interference and receiving the magnetic signal and displaying the needle position on the ultrasound image.
Abstract
Description
Claims (7)
- 초음파를 송신하고 수신하는 초음파 트랜스듀서(32);상기 초음파 트랜스듀서(32)를 둘러싸는 센서 가이드(33); 및상기 센서 가이드(33) 외측에 위치하고 상기 초음파 트랜스듀서(32)의 일측과 반대쪽 타측에 위치하며 자기 신호를 출력하고 수신하는 자기센서모듈(31)을 포함하고,상기 자기센서모듈(31)의 피부에 닿는 면으로부터 이격된 높이의 표면은 상기 초음파 트랜스듀서(32)의 피부에 닿는 표면과 일정 거리 이격되어 구성되는 자기 센서 최적 위치를 위한 초음파 프로브.
- 제1항에 있어서,상기 초음파 프로브는 프로브 핸들과 케이블을 연결하는 스트레인 릴리프(10);내부 부품을 잡아주는 플라스틱 핸들 하우징(20); 및상기 초음파 트랜스듀서(32)와 상기 자기 센서 가이드(33)를 고정하는 플라스틱 노즈(30)를 포함하는 자기 센서 최적 위치를 위한 초음파 프로브.
- 제2항에 있어서,상기 플라스틱 노즈(30)는 상기 센서 가이드(33)의 메카니컬 풋(33-3)을 고정하여 상기 자기센서모듈(31)과 상기 초음파 트랜스듀서(32) 표면간의 거리를 최소화시키는 노즈피스 그루브(30-1); 및상기 센서 가이드(33)의 측면을 거취하여 상기 센서 가이드(33)를 3축 방향에 대해 기구적으로 고정시키는 노즈피스 리브(30-3)를 포함하는 자기 센서 최적 위치를 위한 초음파 프로브.
- 제3항에 있어서,상기 센서 가이드(33)는 상기 자기센서모듈(31)의 정확한 장착 방향을 지시하는 메카니컬 코드(33-1);상기 자기센서모듈(31)을 기구적으로 고정하는 메카니컬 락(33-2);상기 센서 가이드(33)를 상기 노즈피스 그루브(30-1)에 정확히 거취 고정시키는 메카니컬 풋(33-3);상기 센서 가이드(33)의 휘어짐을 방지하고 초음파 트랜스듀서(32)의 표면 높이를 기구적으로 세팅하는 메카니컬 리브(33-4); 및상기 센서 가이드(33)에 상기 초음파 트랜스듀서(32)를 삽입할 때 후방으로 상기 초음파 트랜스듀서(32)를 고정시키는 메카니컬 서포터(33-5)를 포함하는 자기 센서 최적 위치를 위한 초음파 프로브.
- 제3항에 있어서,상기 일정 거리는 1내지 3밀리미터이고, 1밀리미터 이내이면 간섭이 발생하고, 3밀리미터 초과이면 자기 신호 검출이 나빠지는 자기 센서 최적 위치를 위한 초음파 프로브.
- 제3항에 있어서,상기 초음파 트랜스듀서(32)의 음향렌즈는 최소 0.5 내지 최대 0.7밀리미터의 두께를 가지고,상기 노즈피스(30)는 초음파 프로브의 내구성과 신뢰성을 보증하기 위해 1.0 내지 1.5 밀리미터의 두께를 가지는 자기 센서 최적 위치를 위한 초음파 프로브.
- 제3항에 있어서,싱기 노즈피스(30)의 최대 높이를 고려하여 상기 자기센서모듈(31)의 피부에 닿는 면으로부터 이격된 높이는 7.5메가헤르츠 상기 초음파 트랜스듀서(32)의 피부에 닿는 면에서 최소 2밀리미터 이내이고,상기 센서 가이드(33)는 상기 자기센서모듈(31)에 영향을 주지 않는 플라스틱 재질로 제작되고, 상기 초음파 트랜스듀서(32)를 둘러싸는 면의 두께는 최소 1밀리미터인 자기 센서 최적 위치를 위한 초음파 프로브.
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KR20220129409A (ko) * | 2021-03-16 | 2022-09-23 | 삼성메디슨 주식회사 | 초음파 프로브 및 그 제조 방법 |
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KR20140051284A (ko) * | 2011-07-06 | 2014-04-30 | 씨. 알. 바드, 인크. | 삽입 유도 시스템을 위한 바늘 길이 결정 및 교정 |
KR20150001645A (ko) * | 2013-06-27 | 2015-01-06 | 지이 메디컬 시스템즈 글로발 테크놀러지 캄파니 엘엘씨 | 초음파 진단 장치 및 그 제어 프로그램 |
KR20170098474A (ko) * | 2016-02-22 | 2017-08-30 | 삼성메디슨 주식회사 | 초음파 프로브 |
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KR102016941B1 (ko) | 2019-09-02 |
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