CN216124471U - Double-cavity ultrasonic endoscope catheter - Google Patents
Double-cavity ultrasonic endoscope catheter Download PDFInfo
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- CN216124471U CN216124471U CN202121435844.0U CN202121435844U CN216124471U CN 216124471 U CN216124471 U CN 216124471U CN 202121435844 U CN202121435844 U CN 202121435844U CN 216124471 U CN216124471 U CN 216124471U
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Abstract
The utility model provides a double-cavity ultrasonic endoscope catheter, which comprises: an elongated catheter body having a tail portion and a leading end; a first working channel extending from the tail end to the tip end of the catheter body and configured to slidably receive a first medical instrument for acquiring ultrasound images; a second working channel extending from the tail end to the tip end of the catheter body and configured to slidably receive a second medical instrument for performing a therapeutic procedure; the catheter main body is provided with a deflection part at the front end, and the second working cavity channel deflects at the deflection part so as to form a certain angle with the first working cavity channel. The utility model has the characteristics of small size, simple structure, low production cost and the like, can realize real-time ultrasound-guided puncture, minimally invasive treatment and the like on a small lumen target, avoids the risks of blind puncture and the like, and improves the related diagnosis and treatment technical level.
Description
Technical Field
The utility model relates to an ultrasonic endoscope catheter, in particular to a small-size double-cavity ultrasonic endoscope capable of conducting ultrasonic guidance, and belongs to the technical field of medical instruments for diagnosis.
Background
Ultrasonic endoscopic techniques such as ultrasonic gastroscope and ultrasonic bronchoscope are increasingly widely used in clinic due to their advantages of high resolution, good real-time performance, etc. In particular, in recent years, the progress of needle biopsy, tumor radio frequency, photodynamic, laser treatment and the like under the ultrasonic endoscope is actively made.
However, the existing ultrasonic endoscopes still have shortcomings. First, the endoscopic catheters that support ultrasound guidance are oversized overall and cannot enter the tiny lumens. Secondly, the endoscope body of the existing endoscope supporting ultrasonic guidance is high in price, and the popularization and the promotion of the endoscope body are limited.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a small-size double-cavity ultrasonic endoscope capable of conducting ultrasonic guidance, which improves the related diagnosis and treatment technical level and improves the diagnosis and treatment effect.
The technical scheme of the utility model is as follows.
A double-cavity ultrasonic endoscope catheter comprises
An elongated catheter body having a tail portion and a leading end;
a first working channel extending from the tail end to the tip end of the catheter body and configured to slidably receive a first medical instrument for acquiring ultrasound images;
a second working channel extending from the tail end to the tip end of the catheter body and configured to slidably receive a second medical instrument for performing a therapeutic procedure;
the second working channel has a deflection portion near the front end such that the deflection portion is angled with respect to the first working channel.
Preferably, the diameter of the first working channel and the second working channel is 1-2 mm.
Preferably, the first medical instrument is a high-frequency ultrasonic endoscope catheter, and comprises an imaging probe, an imaging catheter and a connector, wherein the imaging probe is arranged at the front end, and the connector is arranged at the tail part.
Preferably, the imaging catheter is a single-array element mechanical rotary ultrasonic endoscopic catheter; the diameter of the imaging catheter is less than 1.5mm, the length of the imaging catheter is more than 80cm, and the working frequency of the imaging catheter is 10-60 MHz.
Preferably, the working material of the imaging probe is piezoelectric ceramic, piezoelectric single crystal or 1-3 piezoelectric composite material.
Preferably, the imaging probe is a micro-capacitive probe.
Preferably, the double-cavity ultrasonic endoscope catheter is integrally formed, the catheter main body is composed of one or more of PE, PB, nylon, polyester elastomers and the like, and the first working cavity channel and the second working cavity channel are formed in the catheter main body.
Preferably, there are separate walls in the first working channel and the second working channel.
Preferably, the second medical device is a puncture needle.
Preferably, an angle of 15 degrees is formed between the deflection portion and the first working channel.
Through the technical scheme, the double-cavity ultrasonic endoscope catheter provided by the utility model has the characteristics of small size, simple structure, low production cost and the like, can break through the pathological change part of the small cavity which cannot be reached by the conventional ultrasonic endoscope, realizes puncture, minimally invasive treatment and the like of the small cavity target under real-time ultrasonic guidance, avoids risks of blind puncture and the like, and improves the related diagnosis and treatment technical level.
Drawings
FIG. 1 is a schematic structural view of a double-lumen ultrasonic endoscope catheter of the present invention;
FIG. 2 is a schematic view of the deflection portion of the double-lumen ultrasonic endoscope catheter of FIG. 1;
FIG. 3 is a schematic view of an endoscopic system including the dual lumen ultrasonic endoscopic catheter of the present invention.
The meaning of the individual reference symbols in the figures is as follows:
1. a catheter body; 2. a first working channel; 3. a second working channel; 4. an imaging probe; 5. an imaging catheter; 6. puncturing needle; 7. enhancing the reflective structure.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.
Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Example 1
The present embodiment provides a double-lumen ultrasonic endoscope catheter, as shown in fig. 1 to 2. The double-cavity ultrasonic endoscope catheter comprises an elongated catheter main body, a first working cavity channel and a second working cavity channel.
The elongated catheter body has a tail portion and a leading end.
The first working channel extends from the tail end to the tip end of the catheter body and is configured to slidably receive a first medical instrument for acquiring ultrasound images.
The second working channel extends from the trailing end to the leading end of the catheter body and is configured to slidably receive a second medical instrument for performing a therapeutic procedure. In an alternative embodiment, the insertion port of the second working channel is not necessarily at the section of the tail of the catheter body, but may be open at the side wall near the tail of the catheter body.
The second working channel has a deflection portion near the front end such that the deflection portion is angled with respect to the first working channel.
In a preferred embodiment, the diameter of the first working channel and the second working channel is 1-2 mm.
In a preferred embodiment, the first medical instrument is a high frequency ultrasound endoscope catheter comprising an imaging probe disposed at the leading end, an imaging catheter and a catheter connector disposed at the trailing end.
In a preferred embodiment, the imaging catheter is a single-element mechanically rotating ultrasound endoscopic catheter; the diameter of the imaging catheter is less than 1.5mm, the length of the imaging catheter is more than 80cm, and the working frequency of the imaging catheter is 10-60 MHz.
In a preferred embodiment, the working material of the imaging probe is piezoelectric ceramic, piezoelectric single crystal or 1-3 piezoelectric composite material.
In a preferred embodiment, the imaging probe is a microcapacitor probe.
In a preferred embodiment, the double-lumen ultrasonic endoscope catheter is integrally formed, the catheter main body is made of one or more of PE, PB, nylon, polyester elastomer and the like, and the first working lumen and the second working lumen are formed in the catheter main body.
In a preferred embodiment, there are separate walls within the first working channel and the second working channel.
In a preferred embodiment, the second medical device is a puncture needle. And particularly in a preferred embodiment, the active needle tip has an enhanced reflection feature that enhances the echo signal of the needle to track the position of the needle tip. In an alternative embodiment, the enhanced reflective structure of the needle tip includes a circumferential flower-shaped laser etched spot.
The deflection portion of the second working channel deflects in a direction away from the first working channel, thereby causing the puncture needle to deflect in a direction away from the first working channel when the puncture needle passes through the deflection portion, as shown in fig. 2.
In a preferred embodiment, the angle between the deflection portion of the second working channel and the first working channel is between 0 and 20 degrees. Therefore, the puncture needle can be in a better monitoring position when entering the scanning range of the imaging probe. In a more preferred embodiment, the deflection portion is angled at 15 degrees from the first working channel.
Example 2
The present embodiments provide an endoscopic system including a dual lumen ultrasound endoscopic catheter. The main structure and module of the system with the double-lumen ultrasonic endoscope catheter proposed by the present embodiment are shown in fig. 3, and comprise the double-lumen ultrasonic endoscope catheter, a system host, and a display.
The specific structure of the double-cavity ultrasonic endoscope catheter is the same as that in embodiment 1, and the description is not repeated.
The system host comprises a connector, a transmitting module, a receiving module and a control processing and image display processing module.
The connector is connected with the tail part of the imaging catheter of the double-cavity ultrasonic endoscope catheter in a catheter connector way of the high-frequency ultrasonic endoscope catheter, and the inside of the connector comprises a driving motor, a coding emitter and a motor control circuit board, so that the rotary scanning of the catheter is realized.
The transmitting module is mainly used for transmitting high-voltage pulses and exciting an ultrasonic probe in the high-frequency ultrasonic endoscope guide pipe.
The receiving module is responsible for receiving signals reflected by the tissue target and performing gain amplification, filtering, TGC processing and the like.
The control processing module mainly controls the time sequence of the transmitting module, the control of the motor and the time sequence and synchronization of the receiving module; and the image display processing module is mainly used for displaying the echo signals on a display screen and carrying out optimization processing on the images, wherein the optimization processing comprises display parameters, image parameter adjustment, image segmentation, measurement and the like. The control processing module mainly controls the time sequence of the transmitting module, the control of the motor and the time sequence and synchronization of the receiving module.
The image display processing module is mainly used for displaying the echo signals on a display screen and carrying out optimization processing on the images, and the optimization processing comprises display parameters, image parameter adjustment, image segmentation, measurement and the like.
The operation of the endoscope system according to the present embodiment will be described below.
When the endoscope is in work, the imaging catheter is connected with the host through the connector, and the high-frequency ultrasonic endoscope catheter is pushed to the position near a lesion position to be observed and diagnosed through the first working cavity of the double-cavity ultrasonic endoscope catheter. The ultrasonic waves are transmitted by the probe under the control of the transmitting module, reflected echoes are converted into electric signals through the probe, the electric signals are transmitted back to the host through the transmission line cable, then the electric signals enter the system receiving module through the TR switch, and are subjected to filtering, low-noise amplification, TGC and the like, and the electric signals are displayed on a screen of the system in real time through the display module.
And then, an operator can push and pull the high-frequency ultrasonic endoscope guide pipe according to the information fed back by the image, adjust the position of the probe in real time and insert the puncture needle through the second working cavity. Meanwhile, the enhanced reflection structure at the top of the puncture needle can be imaged by the probe, so that the puncture direction, the puncture depth and the like of the puncture needle can be tracked in real time through images.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A double-cavity ultrasonic endoscope catheter is characterized by comprising
An elongated catheter body having a tail portion and a leading end;
a first working channel extending from the tail end to the tip end of the catheter body and configured to slidably receive a first medical instrument for acquiring ultrasound images;
a second working channel extending from the tail end to the tip end of the catheter body and configured to slidably receive a second medical instrument for performing a therapeutic procedure;
the second working channel has a deflection portion near the front end such that the deflection portion is angled with respect to the first working channel.
2. The dual-lumen ultrasonic endoscope catheter of claim 1, characterized in that the diameter of said first working lumen and said second working lumen is 1-2 mm.
3. The dual lumen ultrasound endoscope catheter of claim 1, wherein said first medical instrument is a radial high frequency ultrasound endoscope catheter comprising an imaging probe, an imaging catheter and a connector, said imaging probe being disposed at said leading end and said connector being disposed at said trailing end.
4. The dual lumen ultrasonic endoscope catheter of claim 3, wherein said imaging catheter is a single element mechanical rotary ultrasonic endoscopic catheter; the diameter of the imaging catheter is less than 1.5mm, the length of the imaging catheter is more than 80cm, and the working frequency of the imaging catheter is 10-60 MHz.
5. The double-lumen ultrasonic endoscope catheter of claim 3, characterized in that the working material of the imaging probe is piezoelectric ceramics, piezoelectric single crystal or 1-3 piezoelectric composite material.
6. The dual-lumen ultrasound endoscope catheter according to claim 3, characterized in that said imaging probe is a micro-capacitive probe.
7. The dual-lumen ultrasonic endoscope catheter of claim 1, characterized in that said dual-lumen ultrasonic endoscope catheter is integrally formed, said first working channel and said second working channel being formed in said catheter body.
8. The dual lumen ultrasonic endoscopic catheter of claim 7 wherein there are separate walls within said first working channel and said second working channel.
9. The dual-lumen ultrasonic endoscopic catheter of claim 1, wherein said second medical instrument is a puncture needle.
10. The dual lumen ultrasonic endoscopic catheter of any of claims 1 to 9, wherein an angle of 0-20 degrees is formed between the deflection portion and the first working lumen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121435844.0U CN216124471U (en) | 2021-06-25 | 2021-06-25 | Double-cavity ultrasonic endoscope catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121435844.0U CN216124471U (en) | 2021-06-25 | 2021-06-25 | Double-cavity ultrasonic endoscope catheter |
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| Publication Number | Publication Date |
|---|---|
| CN216124471U true CN216124471U (en) | 2022-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121435844.0U Active CN216124471U (en) | 2021-06-25 | 2021-06-25 | Double-cavity ultrasonic endoscope catheter |
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| CN (1) | CN216124471U (en) |
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2021
- 2021-06-25 CN CN202121435844.0U patent/CN216124471U/en active Active
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