CN109223047B - Ultrasonic instrument - Google Patents
Ultrasonic instrument Download PDFInfo
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- CN109223047B CN109223047B CN201811094785.8A CN201811094785A CN109223047B CN 109223047 B CN109223047 B CN 109223047B CN 201811094785 A CN201811094785 A CN 201811094785A CN 109223047 B CN109223047 B CN 109223047B
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- ultrasonic
- motor bearing
- catheter
- conduit
- motor
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- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000003990 capacitor Substances 0.000 claims description 23
- 238000002604 ultrasonography Methods 0.000 claims description 22
- 239000004519 grease Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 230000002596 correlated effect Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 210000004204 blood vessel Anatomy 0.000 description 7
- 230000002452 interceptive effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000002608 intravascular ultrasound Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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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
- A61B8/08—Clinical applications
- A61B8/0891—Clinical applications for diagnosis of blood vessels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Vascular Medicine (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
The application discloses supersound appearance includes: the ultrasonic catheter comprises an ultrasonic catheter and control equipment, wherein a catheter spring tube is arranged in the ultrasonic catheter, and the control equipment comprises a motor bearing; the guide tube spring tube is connected with the inner ring of the motor bearing; conductive liquid is filled between the inner ring and the outer ring of the motor bearing; the outer ring of the motor bearing is grounded. Through this application embodiment, the interference signal on the pipe spring pipe can be through the conducting liquid flow direction ground in the motor bearing, and then can filter at least part interference signal on the pipe spring pipe.
Description
Technical Field
The application relates to the field of medical equipment, in particular to an ultrasonic instrument.
Background
Intravascular Ultrasound (IVUS) refers to a technique in which noninvasive Ultrasound technology is combined with invasive catheter technology and medical imaging is performed using an Ultrasound catheter with an Ultrasound probe attached to the end. The instrument for realizing intravascular ultrasound examination is called an ultrasound instrument, the ultrasound instrument comprises an ultrasound catheter and a control device, wherein the ultrasound catheter contains a catheter spring tube and a catheter coil, the catheter spring tube and the catheter coil need to rotate in the ultrasound catheter for 360 degrees to acquire all-around information of a blood vessel to be diagnosed, and the acquired all-around information of the blood vessel to be diagnosed is transmitted to the control device, so that the control device can acquire an ultrasound image in the blood vessel to be diagnosed.
In the working process of the ultrasonic instrument, the catheter bourdon tube can receive an external electromagnetic interference signal to influence the quality of an ultrasonic image in the blood vessel to be diagnosed. Therefore, in order to enhance the quality of the ultrasound image, at least part of the interference signal on the catheter pogo tube needs to be filtered out.
Accordingly, there is a need for an ultrasound machine that can filter out at least some of the interfering signals on the pogo tubes of the catheter.
Disclosure of Invention
Based on this, this application has proposed a kind of supersound appearance, in order to filter out at least some interference signal on the pipe spring pipe.
The technical scheme provided by the application is as follows:
the application discloses supersound appearance includes: an ultrasound catheter and a control device, the control device comprising at least a motor bearing; a catheter spring tube is arranged in the ultrasonic catheter; the inner ring of the motor bearing is connected with the conduit spring tube and drives the ultrasonic conduit to rotate;
conductive liquid is filled between the inner ring and the outer ring of the motor bearing;
the outer ring of the motor bearing is grounded.
Wherein the motor bearing is a non-conical motor bearing.
Wherein the conductive liquid is low-impedance conductive grease.
Wherein, the ultrasonic apparatus further comprises: a safety capacitor;
the conduit spring tube is connected with one end of the safety capacitor through a wire;
and the other end of the safety capacitor is connected with the inner ring of the motor bearing through a wire.
Wherein, the safety capacitor is an X-type capacitor.
Wherein the X-type capacitor is any one of X1, X2 and X3, and the voltage resistance of the X1, the X2 and the X3 are different;
the voltage resistance of the safety capacitor is positively correlated with the safety performance of the ultrasonic instrument.
Wherein the control apparatus further includes: a motor;
the motor is connected with the inner ring of the motor bearing.
Wherein, a conduit coil is arranged in the ultrasonic conduit, and one end of the ultrasonic conduit, which is far away from the control equipment, is connected with an ultrasonic transducer; the control apparatus further includes: the rotary transformer and the ultrasonic signal transmitting and receiving module;
the input end of the rotary transformer is connected with the ultrasonic signal transmitting and receiving module;
the output end of the rotary transformer is connected with one end of the conduit coil close to the control device.
The motor, the rotary transformer and the motor bearing are fixed on a metal bracket.
Wherein the ultrasonic catheter and the motor bearing are detachably fixed by a joint seat.
The beneficial effect of this application does:
in the application, a conduit spring tube is connected with an inner ring of a motor bearing, conductive liquid is filled between the inner ring and an outer ring of the motor bearing, and the outer ring of the motor bearing is grounded; interference signals on the conduit spring tube can be transmitted into the conductive liquid and then transmitted to the ground through the outer ring of the conduit spring tube; therefore, the ultrasonic instrument provided by the application can filter out at least part of interference signals on the catheter bourdon tube.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of a rotary bearing and an ultrasonic catheter in an ultrasonic apparatus;
fig. 2 is a schematic structural diagram of an ultrasonic apparatus in the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Currently, the way to filter out at least part of the interference signals on the catheter pogo pins includes: the control device comprises a rotating bearing with a conical outer ring, the inner ring of the rotating bearing is connected with a catheter spring tube of the ultrasonic catheter, and the tip of the outer ring of the rotating bearing is grounded, so that an interference signal on the catheter spring tube reaches the tip of the outer ring through the inner ring of the rotating bearing and is guided into the ground, as shown in fig. 1.
However, the tip portion of the outer race of the slew bearing may be subjected to severe wear during use, resulting in a short life of the slew bearing, which is a further problem to be solved by the present application.
Referring to fig. 2, a schematic structural diagram of an ultrasound apparatus of the present application is shown, which may include:
an ultrasound catheter 201, a control device 202, and a catheter hub 203 to which the ultrasound catheter 201 is connected to the control device 202. The ultrasonic catheter 201 comprises a catheter spring tube 2011, a catheter coil 2012 and an ultrasonic transducer 2013, wherein the catheter coil 2012 is inside the catheter spring tube 2011, the catheter coil 2012 is divided into a positive coil and a negative coil, the ultrasonic transducer 2013 is connected between the positive coil and the negative coil, and the ultrasonic transducer 2013 has an explained function on the catheter coil 2012. The control device 202 may include a motor 2021, a motor bearing 2022, a resolver 2023, and an ultrasonic signal transmitting-receiving module 2024. The motor 2021, the motor bearing 2022, and the resolver 2023 are fixed to the metal bracket.
In practical application, the use principle of the ultrasonic instrument is as follows:
the inner ring of the motor bearing 2022 is connected with a catheter spring tube 2011 in the ultrasonic catheter, meanwhile, the inner ring of the motor bearing 2022 is connected with the motor 2021, and the motor 2021 drives the inner ring of the motor bearing 2022 to drive the catheter spring tube 2011 to rotate; the input end of the rotary transformer 2023 is connected to the ultrasonic signal transmitting and receiving module 2024, the output end of the rotary transformer 2023 is connected to the conduit coil 2012, the ultrasonic signal transmitting and receiving module 2024 is used for providing the ultrasonic signal to the input end of the rotary transformer 2023, the provided ultrasonic signal is output through the output end of the rotary transformer, and the output ultrasonic signal is transmitted to the conduit coil 2012.
Meanwhile, the catheter coil 2012 receives the ultrasonic signal carrying the information of the interior of the blood vessel to be diagnosed, and transmits the received ultrasonic signal to the ultrasonic signal transmitting and receiving module 2024 through the rotary transformer 2023, and the ultrasonic signal transmitting and receiving module 2024 images by using the received ultrasonic signal to obtain an ultrasonic image of the interior of the blood vessel to be diagnosed.
During operation of the ultrasound apparatus, the resolver 2023 may filter out at least some of the interfering signals in the input conduit coil 2012 signal, and thus the resolver 2023 may ensure safe isolation of the signal in the conduit coil 2012. However, the catheter spring 2011 in the ultrasound catheter 201 may receive interference signals from the outside, such as EMI radiation interference present by other devices. The interference signal received by the catheter pogo pin 2011 is transmitted to the ultrasound signal transmitting and receiving module 2024 through the catheter coil 2012, so that the quality of the ultrasound image inside the blood vessel to be diagnosed is poor. Therefore, in order to improve the quality of the ultrasound image, at least part of the interference signals on the catheter pogo tube need to be filtered out.
In this embodiment, in order to filter at least part of the interference signals on the catheter spring tube, an electrically conductive liquid is filled between the inner ring and the outer ring of the motor bearing 2022, and the outer ring of the motor bearing 2022 is connected to the ground. The conductive liquid has the functions of: the interfering signal on the catheter spring 2011 is directed to the ground. Specifically, the conductive liquid may be conductive grease, and certainly, in practical applications, the conductive liquid may also be other conductive liquids. It should be noted that the low-impedance conductive grease selected in this embodiment has the following advantages: the low-impedance conductive grease has better conductivity.
The principle that the ultrasonic instrument can filter at least part of the interference signals in the embodiment is as follows: since the inner ring of the motor bearing 2022 is connected to the catheter spring tube 2011, and the conductive liquid is filled between the inner ring and the outer ring of the motor bearing 2022, the outer ring of the motor bearing 2022 is grounded; so that the interfering signal on the catheter spring 2011 can be transmitted into the conducting liquid and further to the ground through the outer ring of the motor bearing 2022.
Meanwhile, in the embodiment, the outer ring of the motor bearing is in a non-conical shape, so that the motor cannot be seriously abraded in the process of driving the ultrasonic catheter to rotate by ultrasonic; therefore, the ultrasonic instrument provided by the embodiment of the application can filter at least part of interference signals on the guide pipe spring tube, and meanwhile, the motor bearing cannot be seriously worn in the using process.
In practical applications, the motor 2021 may leak electricity during operation, and the leaked electricity is transmitted to the catheter spring tube 2011 through the motor bearing 2022, which may cause safety risks for users and patients. Therefore, in this embodiment, when filtering at least an interference signal on the catheter spring tube 2011, the safety capacitor 204 is installed between the motor bearing 2022 and the catheter spring tube 2011, and the safety risk of the user and the patient due to the leakage current of the motor 2021 is avoided by the safety capacitor 204. Specifically, one end of the safety capacitor 204 is connected to the catheter spring tube 2011 through a wire, and the other end of the safety capacitor 204 is connected to the inner ring of the motor bearing 2022 through a wire. In order to achieve higher conductivity, the wire can be a metal wire.
In practical applications, specific parameters of the safety capacitor 204 may include: x1, X2, X3, Y1, Y2 and Y3. The value of the Y capacitance cannot be too large due to the limitation of the leakage current, and typically the X capacitance is of the uF class and the Y capacitance is of the nF class, so the X capacitance is preferred in this embodiment. In the X capacitor, the voltage resistance is X1, X2, and X3 in order from large to small, and in this embodiment, when the requirement on the safety of the ultrasonic instrument is higher, a capacitor with higher voltage resistance needs to be selected in the ultrasonic instrument; namely, the voltage-resistant capability of the safety capacitor in the ultrasonic instrument is positively correlated with the safety performance of the ultrasonic instrument.
In this embodiment, since the inner ring of the motor bearing 2022 is connected to the catheter spring tube 2011, a metal wire is further used to connect a safety capacitor 204 between the inner ring of the motor bearing 2022 and the catheter spring tube 2011, and the connected safety capacitor 204 does not affect the motor bearing to introduce the interference signal on the catheter spring tube 2011 to the ground.
The terms "comprising," "including," and the like, as used herein, are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, the meaning of "includes but is not limited to". The invention can be applied to various fields, such as a mobile phone, a mobile phone.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. An ultrasound apparatus comprising an ultrasound catheter and a control device, the control device comprising at least a motor bearing; a catheter spring tube is arranged in the ultrasonic catheter; the inner ring of the motor bearing is connected with the conduit spring tube and drives the ultrasonic conduit to rotate;
it is characterized in that the preparation method is characterized in that,
conductive liquid is filled between the inner ring and the outer ring of the motor bearing;
the outer ring of the motor bearing is grounded;
the ultrasonic instrument further comprises: a safety capacitor;
the conduit spring tube is connected with one end of the safety capacitor through a wire;
the other end of the safety capacitor is connected with the inner ring of the motor bearing through a wire;
a conduit coil and an ultrasonic transducer are arranged in the ultrasonic conduit, the conduit coil is divided into a positive electrode coil and a negative electrode coil, and the ultrasonic transducer is connected between the positive electrode coil and the negative electrode coil; the control apparatus further includes: the rotary transformer and the ultrasonic signal transmitting and receiving module;
the input end of the rotary transformer is connected with the ultrasonic signal transmitting and receiving module;
the output end of the rotary transformer is connected with one end of the conduit coil close to the control device.
2. The ultrasonic meter of claim 1, wherein the motor bearing is a non-conical motor bearing.
3. The ultrasonic meter of claim 1, wherein the conductive liquid is a low impedance conductive grease.
4. The ultrasonic meter of claim 1, wherein the safety capacitor is a class X capacitor.
5. The ultrasonic apparatus according to claim 4, wherein the X-type capacitance is any one of X1, X2 and X3, and the X1, the X2 and the X3 have different voltage endurance capabilities;
the voltage resistance of the safety capacitor is positively correlated with the safety performance of the ultrasonic instrument.
6. The ultrasonic apparatus according to any one of claims 1 to 5, wherein the control device further comprises: a motor;
the motor is connected with the inner ring of the motor bearing.
7. The ultrasonic meter of claim 6, wherein the motor, the rotary transformer and the motor bearing are fixed to a metal bracket.
8. The ultrasonic meter of claim 1, wherein the ultrasonic catheter and the motor bearing are removably secured by a joint block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811094785.8A CN109223047B (en) | 2018-09-19 | 2018-09-19 | Ultrasonic instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811094785.8A CN109223047B (en) | 2018-09-19 | 2018-09-19 | Ultrasonic instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109223047A CN109223047A (en) | 2019-01-18 |
| CN109223047B true CN109223047B (en) | 2022-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811094785.8A Active CN109223047B (en) | 2018-09-19 | 2018-09-19 | Ultrasonic instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN109223047B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110151226B (en) * | 2019-06-28 | 2022-04-01 | 深圳开立生物医疗科技股份有限公司 | Demagnetization method and device of rotary transformer and intravascular ultrasound equipment |
Citations (6)
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|---|---|---|---|---|
| CN1504654A (en) * | 2002-10-22 | 2004-06-16 | Ntn株式会社 | Electroconductive grease-filled bearing |
| CN104248419A (en) * | 2014-10-21 | 2014-12-31 | 白晓苓 | Ultrasonic/optical dual-mode imaging probe for endoscopic imaging and imaging method |
| CN105193456A (en) * | 2015-10-28 | 2015-12-30 | 上海爱声生物医疗科技有限公司 | Intravascular ultrasound diagnostic instrument with rotation coupled structure |
| CN106343957A (en) * | 2016-09-09 | 2017-01-25 | 深圳市中科微光医疗器械技术有限公司 | Three dimensional OCT scan imaging system for cardiovascular applications and imaging method thereof |
| CN206063170U (en) * | 2016-06-27 | 2017-04-05 | 中国科学院苏州生物医学工程技术研究所 | Miniature ultrasonic device |
| CN108024709A (en) * | 2015-05-12 | 2018-05-11 | 韩国科学技术院 | Coronary artery high-speed scanning device and method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8317713B2 (en) * | 2009-01-09 | 2012-11-27 | Volcano Corporation | Ultrasound catheter with rotatable transducer |
| CA2895769A1 (en) * | 2012-12-21 | 2014-06-26 | Douglas Meyer | Rotational ultrasound imaging catheter with extended catheter body telescope |
| US10512449B2 (en) * | 2014-09-19 | 2019-12-24 | Volcano Corporation | Intravascular device for vessel measurement and associated systems, devices, and methods |
-
2018
- 2018-09-19 CN CN201811094785.8A patent/CN109223047B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1504654A (en) * | 2002-10-22 | 2004-06-16 | Ntn株式会社 | Electroconductive grease-filled bearing |
| CN104248419A (en) * | 2014-10-21 | 2014-12-31 | 白晓苓 | Ultrasonic/optical dual-mode imaging probe for endoscopic imaging and imaging method |
| CN108024709A (en) * | 2015-05-12 | 2018-05-11 | 韩国科学技术院 | Coronary artery high-speed scanning device and method |
| CN105193456A (en) * | 2015-10-28 | 2015-12-30 | 上海爱声生物医疗科技有限公司 | Intravascular ultrasound diagnostic instrument with rotation coupled structure |
| CN206063170U (en) * | 2016-06-27 | 2017-04-05 | 中国科学院苏州生物医学工程技术研究所 | Miniature ultrasonic device |
| CN106343957A (en) * | 2016-09-09 | 2017-01-25 | 深圳市中科微光医疗器械技术有限公司 | Three dimensional OCT scan imaging system for cardiovascular applications and imaging method thereof |
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| Publication number | Publication date |
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| CN109223047A (en) | 2019-01-18 |
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