CN211749715U - A self-guided endoscopic system - Google Patents

Abstract

The utility model discloses a self-guided endoscopic system, which comprises a host, a display, an endoscopic catheter, and a communication device for connecting the host and the endoscopic catheter. The endoscopic catheter includes a sleeve that forms a closed cavity inside. A body, an optical sensor and an ultrasonic transducer arranged in the closed cavity where the protruding end of the sleeve body is located, wherein the optical sensor can generate an optical image on the display, and the ultrasonic transducer follows the protruding end under the guidance of the optical image. The unit moves to the target area and performs ultrasonic imaging on the display or ultrasonic treatment of the target area through the signal processing of the host computer. The utility model utilizes an integrated forward-looking optical sensor, which can not only image the front area of the catheter to guide the positioning of the catheter, but also display the optical image on the display. At the same time, the ultrasonic transducer can not only diagnose the lesion, but also can The ultrasound image is displayed on the monitor.

Description

A self-guided endoscopic system

technical field

The utility model belongs to the field of medical instruments, in particular to a self-guided endoscope system.

Background technique

At present, the most commonly used endoscopic systems in the market are endoscopic ultrasound catheters, such as intravascular ultrasound catheters, ultrasound endoscopes, ultrasound gastroscopes, and ultrasound bronchoscopes, which are mainly used for the diagnosis and treatment of various interventional operations. However, since it has no positioning function, it must rely on CT, DAS and other equipment for guidance, and then observe the lesion after reaching the lesion. Treatment judgment.

However, both CT and DAS emit radiation, which will cause certain harm to both patients and medical staff, and also limit the conditions for use of the equipment.

SUMMARY OF THE INVENTION

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an improved self-guided endoscope system.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A self-guiding endoscopic system, comprising a host, a display, an endoscopic catheter, and a connector for connecting the host with the endoscopic catheter, the endoscopic catheter including a cannula body forming a closed cavity inside, a set of An optical sensor in the closed cavity where the protruding end of the sleeve body is located, and an ultrasonic transducer communicated with the optical sensor and arranged in the closed cavity, wherein the optical sensor can generate an optical image on the display, and the ultrasonic transducer is in the optical sensor. Under the guidance of the image, it moves to the target area along with the protruding end, and performs ultrasonic imaging on the display or performs ultrasonic treatment on the target area through the signal processing of the host computer.

Preferably, the inner diameter of the sleeve body is 0.35-6 mm; the optical sensor and the ultrasonic transducer are communicated with the connector through a cable, wherein the optical sensor is located at the front end of the sleeve body extending into the end, and the ultrasonic transducer is close to the optical The sensor setup is behind the optical sensor.

Specifically, the optical sensor is a CMOS sensor or a CCD sensor.

Preferably, a lighting module is also integrated on the optical sensor. With the assistance of the lighting module, the imaging is made clearer. The illumination module is an LED light, or an external light source is used to guide it into the catheter through an optical fiber to realize illumination imaging. Its signal is transmitted to the connector through the connected cable, and the corresponding optical image is displayed on the display after being processed by the host.

According to a specific implementation and preferred aspect of the present invention, the endoscopic catheter further includes a lens disposed at the front end of the optical sensor. With the aid of the lens, it is convenient to spread the light, so as to obtain a large-area endoscopic optical image.

Preferably, the diameter of the optical sensor is 1/3-4/5 of the inner diameter of the sleeve body; and the pixels of the optical image generated by the optical sensor on the display are larger than 20×20.

According to yet another specific implementation and preferred aspect of the present invention, the diameter of the ultrasonic transducer is 1/3-4/5 of the inner diameter of the sleeve body, and the ultrasonic transducer is located on one side behind the optical sensor.

Preferably, the frequency of the ultrasonic transducer is greater than 50 KHz, and is a single-element probe transducer or a multi-element ring array, linear array, convex array or area array transducer.

Specifically, the ultrasonic transducer is a piezoelectric ceramic transducer, a piezoelectric single crystal transducer, a composite transducer, a PMUT transducer or a CMUT transducer.

In addition, the host includes an ultrasonic and optical signal receiving unit, an ultrasonic and optical signal processing unit, wherein the ultrasonic and optical signal receiving unit communicates with the optical sensor and the ultrasonic transducer, and the display communicates with the ultrasonic It is communicated with the optical signal processing unit, and the display can simultaneously display the optical and ultrasonic images.

Due to the implementation of the above technical solutions, the present invention has the following advantages compared with the prior art:

The utility model utilizes an integrated forward-looking optical sensor, which can not only image the front area of the catheter to guide the positioning of the catheter, but also display the optical image on the display. Ultrasound images are displayed on the monitor, therefore, there is no need for external CT, DAS monitoring guidance or endoscopic electronic endoscopy guidance, which greatly improves the flexibility, accuracy and range of use of the endoscopic ultrasound catheter.

Description of drawings

1 is a schematic structural diagram of a self-guided endoscope system of the present invention;

Among them: 1. host; 1a, ultrasonic and optical signal receiving unit; 1b, ultrasonic and optical signal processing unit;

2. Display;

3. Endoscopic catheter; 30, sleeve body; 31, optical sensor; 32, ultrasonic transducer; 33, cable; 34, lighting module; 35, lens;

4, the connector.

Detailed ways

In order to make the above objects, features and advantages of the present utility model more clearly understood, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many ways different from those described here, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not subject to the specific embodiments disclosed below. limit.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" ", "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated A device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection connected, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication between two elements or the interaction between the two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the utility model, unless otherwise expressly specified and limited, the first feature "on" or "under" the second feature may be in direct contact between the first and second features, or the first and second features indirectly through an intermediary touch. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or an intervening element may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

As shown in FIG. 1 , the self-guided endoscopic system according to the present embodiment includes a host 1, a display 2, an endoscopic catheter 3, and a connector 4 for connecting the host 1 and the endoscopic catheter 3, wherein The endoscopic catheter 3 includes a cannula body 30 forming a closed cavity inside, an optical sensor 31 disposed in the closed cavity where the end of the cannula body 30 extends into, and an ultrasonic transducer communicated with the optical sensor 31 and disposed in the closed cavity. The ultrasonic transducer 32, the optical sensor 31 can generate an optical image on the display 2, and the ultrasonic transducer 32 moves to the target area with the protruding end under the guidance of the optical image, and performs ultrasonic imaging on the display 2 through the signal processing of the host 1 Or ultrasound treatment of the target area.

Specifically, the host 1 includes an ultrasonic and optical signal receiving unit 1a and an ultrasonic and optical signal processing unit 1b, wherein the ultrasonic and optical signal receiving unit 1a is in communication with the optical sensor 31 and the ultrasonic transducer 32, and the display 2 is connected with the ultrasonic and optical signals. The processing unit 1b is connected, and the display 2 is capable of simultaneously displaying optical and ultrasound images.

In this example, the inner diameter of the sleeve body 30 is 3 mm; the optical sensor 31 and the ultrasonic transducer 32 are communicated with the connector 4 through the cable 33, wherein the optical sensor 31 is located at the front end of the sleeve body 30 extending into the end, The ultrasonic transducer 32 is disposed close to the optical sensor 31 and is located on the side behind the optical sensor 31 .

Specifically, the optical sensor 31 is a CMOS sensor.

At the same time, a lighting module 34 is also integrated on the optical sensor 31 . With the assistance of the lighting module 34, the imaging is made clearer.

In this example, the illumination module 34 is an LED lamp, or an external light source is used to guide it into a catheter through an optical fiber to realize illumination imaging. Its signal is transmitted to the connector through the connected cable, and the corresponding optical image is displayed on the display after being processed by the host computer.

The endoscopic catheter 3 further includes a lens 35 provided at the front end of the optical sensor 31 . With the assistance of the lens 35, it is convenient to spread the light, so as to obtain a large-area endoscopic optical image.

In this example, the diameter of the optical sensor 31 is 2 mm, and the pixels of the optical image generated by the optical sensor 31 on the display 2 are 200 x 200.

The diameter of the ultrasonic transducer 32 is 2 mm, and the frequency of the ultrasonic transducer 32 is 20 MHz.

Specifically, the ultrasonic transducer 32 is a piezoelectric ceramic transducer, a piezoelectric single crystal transducer, a 1-3 composite transducer, a PMUT transducer or a CMUT transducer.

Meanwhile, the ultrasonic transducer 32 is a single-element probe transducer or a multi-element ring array, line array, convex array or area array transducer.

To sum up, in this example, the steps of using the above-mentioned self-guided endoscopic system for diagnosis of ultrasonic endoscopic interventional imaging are as follows:

1) Connect the sterilized endoscopic catheter with the host through the connector, put the endoscopic catheter into the in vitro phantom or the water container, and pass the ultrasonic transducer and optical sensor in the endoscopic catheter. Ultrasound transducer and optical sensor feedback signal, display both optical and ultrasound images in the display to ensure that the endoscopic catheter is working properly;

2) Slowly insert the endoscopic catheter into the diseased area. During the insertion, guide it according to the optical image, and adjust the insertion angle and orientation in time. After reaching the target area, use the ultrasonic probe to carry out ultrasonic imaging or direct Ultrasound diagnosis of lesion area;

3) After completing the above operations, take out the endoscopic catheter, stop working, and disconnect.

Therefore, this embodiment has the following advantages:

1. By adding a visual optical sensor to the endoscopic catheter, the self-guidance or self-positioning function of the endoscopic catheter can be realized;

2. With the assistance of lenses and LED lights, the information fed back by the optical sensor to the host is more accurate, thereby improving the quality of the optical image generated in the display (such as pixels, lesion size, etc.);

3. Both the optical sensor and the ultrasonic transducer are arranged inside the casing body, and the operation of extending the endoscopic catheter into the diseased area of the human body is facilitated by the protection of the casing body;

4. Using the integrated forward-looking optical sensor, the front area of the catheter can be imaged for positioning and guidance of the catheter, and the optical image can also be displayed on the monitor. At the same time, the ultrasonic transducer can not only diagnose the lesion, but also can be displayed on the monitor. Ultrasound images are displayed in the device, therefore, there is no need to be guided by external CT, DAS monitoring or endoscopic electronic endoscopy, which greatly improves the flexibility, accuracy and range of use of the endoscopic ultrasound catheter.

The present utility model has been described in detail above, and its purpose is to enable those who are familiar with the technology in this field to understand the content of the present utility model and implement it, and cannot limit the scope of protection of the present utility model with this, all according to the spirit of the present utility model Substantially equivalent changes or modifications should be covered within the protection scope of the present invention.

Claims (10)

1. A self-guided endoscopic system comprising a mainframe, a display, an endoscopic catheter, and a connector for connecting the mainframe with the endoscopic catheter, characterized in that: The endoscopic catheter includes a cannula body forming a closed cavity inside, an optical sensor arranged in the closed cavity where the extended end of the cannula body is located, communicated with the optical sensor and disposed in the closed cavity An ultrasound transducer in the body, wherein the optical sensor is capable of generating an optical image on the display, and the ultrasound transducer is guided by the optical image as the protruding tip moves to the target area and through the host The signal processing is performed on the display for ultrasound imaging or ultrasound treatment of the target area. 2. The self-guided endoscopic system according to claim 1, wherein the inner diameter of the cannula body is 0.36-6 mm; the optical sensor and the ultrasonic transducer are connected to the The communication connector is in communication, wherein the optical sensor is located at the front end of the extending end of the sleeve body, and the ultrasonic transducer is arranged close to the optical sensor and is located behind the optical sensor. 3. The self-guided endoscopy system according to claim 1, wherein the optical sensor is a CMOS sensor or a CCD sensor. 4 . The self-guided endoscope system according to claim 1 , wherein a lighting module is further integrated on the optical sensor. 5 . 5. The self-guided endoscopic system according to any one of claims 1 to 4, wherein the endoscopic catheter further comprises a lens disposed at the front end of the optical sensor. 6 . The self-guided endoscope system according to claim 5 , wherein the diameter of the optical sensor is 1/3-4/5 of the inner diameter of the cannula body; and the optical sensor The pixels of the optical image generated on the display are larger than 20x20. 7 . The self-guided endoscopic system according to claim 2 , wherein the diameter of the ultrasonic transducer is 1/3-4/5 of the inner diameter of the cannula body, and the ultrasonic The transducer is located on the side behind the optical sensor. 8. The self-guided endoscopy system according to claim 7, wherein the frequency of the ultrasonic transducer is greater than 50 KHz, and is a single-array element probe transducer or a multi-array element ring array, Linear, convex or area array transducers. 9. The self-guided endoscopy system according to claim 1, wherein the ultrasonic transducer is a piezoelectric ceramic transducer, a piezoelectric single crystal transducer, a composite transducer, a PMUT transducer transducer or CMUT transducer. 10. The self-guided endoscopic system according to claim 1, wherein the main body comprises an ultrasonic and optical signal receiving unit, an ultrasonic and optical signal processing unit, wherein the ultrasonic and optical signal receiving unit is the same as the The optical sensor is in communication with the ultrasonic transducer, the display is in communication with the ultrasonic and optical signal processing units, and the display can simultaneously display optical and ultrasonic images.

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