Ultrasonic endoscope system

Abstract

The invention relates to an ultrasonic endoscope system which comprises an operating handle, an outer sheath tube, an inner tube and an imaging assembly. Wherein the near end of the outer sheath tube is fixed with the operating handle; the near end of the inner tube is connected with the operating handle and can be driven by the operating handle to rotate, and the far end of the inner tube is arranged in the outer sheath tube and extends to the far end of the outer sheath tube; the imaging assembly comprises a signal processor, an imaging unit and a seat body, the seat body is fixed to the far end of the inner tube and can be driven by the inner tube to rotate, and the signal processor and the imaging unit are both arranged on the seat body; the operating handle can drive the imaging unit connected with the seat body to rotate through the inner tube so as to scan target tissue, and the imaging unit is a multi-array-element linear array transducer.

Description

Technical Field

[0001] The present invention relates to the field of medical technology, and particularly to an endoscopic ultrasound system. Background Art

[0002] With the increasing incidence of digestive and respiratory diseases year by year, endoscopic examination is particularly important for disease diagnosis. By using an endoscopic ultrasound system, lesions such as tumors and cysts in various tissues below the digestive tract mucosa can be clearly screened, and tomographic images of nearby organs such as the mediastinum, pancreas, bile duct, and lymph nodes can be obtained.

[0003] An ultrasound probe is a commonly used method for diagnosing early canceration and microtumors in human body cavity tissues. It obtains tomographic images of human body cavity tissues by rotating at high speed 360 degrees in the human body, thereby detecting early canceration and microtumors in the tissues and realizing early screening of tumors.

[0004] However, the imaging unit of the traditional ultrasound probe uses a single-element piezoelectric wafer. Although it can obtain tomographic images of tissues through 360° high-speed circumferential scanning, it cannot comprehensively present the three-dimensional anatomical structure of the lesion, and is even less able to detect the blood vessels and blood flow conditions around the tumor, making it difficult to meet the needs of precision medicine.

[0005] The above information disclosed in the background art of this application is only used to understand the background of the concept of this application, and may include information that does not constitute prior art. Summary of the Invention

[0006] Based on this, it is necessary to provide an endoscopic ultrasound system for the above problems.

[0007] An endoscopic ultrasound system, comprising:

[0008] An operating handle;

[0009] An outer sheath tube, the proximal end of which is fixed to the operating handle;

[0010] An inner tube, the proximal end of which is connected to the operating handle and can rotate under the drive of the operating handle. The distal end of the inner tube is disposed inside the outer sheath tube and extends to the distal end of the outer sheath tube; and

[0011] An imaging assembly, the imaging assembly includes a signal processor, an imaging unit, and a seat body. The seat body is fixed to the distal end of the inner tube and can rotate under the drive of the inner tube. The signal processor and the imaging unit are both disposed on the seat body. When the imaging unit rotates, it scans the target tissue, and the imaging unit is a multi-element linear array transducer.

[0012] The above endoscopic ultrasound system can at least achieve the following beneficial effects:

[0013] The traditional ultrasound probe is a single-element transducer, which is driven by a driver to scan 360 degrees to form a cross-sectional ultrasound image. The single-element transducer can display the condition of the lesion, but cannot detect the blood vessels and blood flow around the lesion, and cannot guide further biopsy diagnosis and treatment. The imaging unit used in the ultrasound endoscope system of the present application is a multi-element linear array transducer, which can scan the target tissue and its surrounding environment more clearly. It drives the multi-element transducer to rotate through a mechanical knob, eliminating the need for a precision drive device, greatly reducing product costs. During use, ultrasound scanning can be performed on the area of ​​interest as needed, improving the accuracy of ultrasound scanning, and can generate real-time three-dimensional ultrasound images to observe the blood vessels and blood flow around the lesion in real time. Specifically, the ultrasonic endoscope system of the present application controls the angle of the imaging component through mechanical rotation, and can generate high-resolution images in real time, clearly displaying the blood flow conditions of the target tissue and its surrounding blood vessels. It can not only quickly locate the diseased area, reduce repeated scanning, improve the accuracy and efficiency of treatment operations, shorten operation time, and reduce patient pain, but also clearly display the distribution of blood vessels, provide doctors with comprehensive imaging information, guide doctors to avoid vascular areas, reduce intraoperative bleeding and tissue damage, significantly reduce the risk of intraoperative bleeding, and improve surgical safety and patient postoperative recovery.

[0014] In some embodiments, the imaging component further includes a first signal line, a second signal line and an adapter plate, the adapter plate being disposed in the seat body, one end of the first signal line being connected to the signal processor, and the other end being connected to the adapter plate, one end of the second signal line being connected to the adapter plate, and the other end passing through the inner tube and connected to the signal connector in the operating handle. The signal processor is connected to the adapter plate via the first signal line, and the adapter plate is connected to the signal connector in the operating handle via the second signal line. The present ultrasonic endoscope system further optimizes the signal transmission structure, and the first signal line is used to connect the signal processor and the adapter plate to ensure that the signal collected by the imaging unit can be efficiently transmitted to the adapter plate. The adapter plate is disposed in the seat body as the hub of signal transmission, responsible for integrating the multi-channel signals of the signal processor and converting them into a signal format suitable for long-distance transmission.

[0015] In some of these embodiments, the signal processor is an AFE chip, the multi-element linear array transducer is bonded to the AFE chip, the number of the first signal lines corresponds to the number of elements of the imaging unit, and the number of the second signal lines is less than the number of the first signal lines. The signal processor needs to process multi-channel signals, and the number of the first signal lines is large to meet the requirements of high-resolution imaging. The adapter board realizes the efficient integration and optimization of signals, reduces the number of the second signal lines, and ensures the stability and clarity of signal transmission, that is, the number of the second signal lines is less than that of the first signal lines, reducing the complexity of the signal transmission path and the difficulty of internal wiring of the system at the same time.

[0016] In some of these embodiments, an imaging window is provided at the distal end of the outer sheath tube, and the imaging unit is located within the imaging window. The imaging window provides an open observation window for the imaging unit, ensuring that ultrasonic signals can be emitted and received unobstructed, thereby improving the clarity and accuracy of imaging.

[0017] In some of these embodiments, the imaging unit is embedded in one side of the base body.

[0018] In some of these embodiments, the inner tube is a spring tube.

[0019] In some of these embodiments, the base body is a metal sheath.

[0020] In some of these embodiments, the operating handle includes a housing and a knob rotatably sleeved on the housing. The proximal end of the outer sheath tube is fixed to the housing, and the inner tube extends into the housing and is connected to the knob. The knob is rotatably sleeved on the housing, and the rotation of the inner tube is driven by rotating the knob, so as to drive functional components such as the imaging unit located at the distal end of the inner tube to perform rotational scanning. This design enables the doctor to precisely control the rotation angle and speed of the inner tube through simple knob operations, realizing precise scanning of the target tissue. Compared with traditional ultrasonic mini-probes, the setting of a precision driving device is eliminated, greatly reducing the product complexity and the product cost.

[0021] In some of these embodiments, the operating handle further includes a rotating shaft disposed within the housing. The rotating shaft is connected to the knob and can rotate under the drive of the knob. The proximal end of the inner tube is connected to the rotating shaft and can rotate under the drive of the rotating shaft. The proximal end of the inner tube extends into the housing and is connected to the rotating shaft. Under the drive of the knob, the rotating shaft rotates and drives the inner tube to rotate, thereby driving functional components such as the imaging unit located at the distal end of the inner tube to perform rotational scanning. The rotating shaft is directly connected to the inner tube, reducing energy loss during the motion transmission process and improving the stability and accuracy of rotation. It should be noted that the inner tube is usually relatively thin and made of a soft material. If the inner tube is directly connected to the knob, the rotational control effect on the inner tube is poor. Therefore, the rotating shaft is further provided. Among them, the rotating shaft can be made of a relatively hard material such as stainless steel and is generally in a hollow tubular shape. The knob and the rotating shaft can be fixedly connected by means of a shrink fit or welding to ensure the stability of the connection.

[0022] In some of these embodiments, the knob includes a first knob and a second knob. Both the first knob and the second knob are rotatably sleeved on the housing and are arranged in sequence along the axial direction of the inner tube. The first knob is connected to the rotating shaft and can drive the rotating shaft and the inner tube connected to the rotating shaft to rotate in a first rotation direction. The second knob is connected to the rotating shaft and can drive the rotating shaft and the inner tube connected to the rotating shaft to rotate in a second rotation direction. Both the first rotation direction and the second rotation direction are parallel to the circumferential direction of the inner tube and are opposite in direction. The first knob and the second knob are mechanically connected to the rotating shaft for linkage. When the user rotates the knob, it can drive the rotating shaft, and the inner tube connected to the rotating shaft will also rotate accordingly, realizing the control of the ultrasonic imaging unit. Through the design of the first knob and the second knob, the user can respectively control the rotation of the inner tube in two directions. The design of opposite rotation directions enables the user to more precisely control the rotation angle of the inner tube, improving the operation accuracy of the ultrasonic endoscope system. It can be understood that the rotation of the inner tube will drive the imaging unit to adjust the scanning angle or direction. The design of the knob enables the user to more flexibly control the scanning range of the ultrasonic imaging unit.

[0023] In some of these embodiments, the rotating shaft is fixedly sleeved outside the inner tube.

[0024] In some of these embodiments, the operating handle further includes a bearing disposed within the housing. The outer ring of the bearing is fixed to the inner wall of the housing, and the inner ring of the bearing is fixedly sleeved on the rotating shaft. The outer ring of the bearing is fixed to the housing, and the inner ring of the bearing can rotate relative to the outer ring. The bearing can be used to support the rotating shaft, reduce the frictional resistance during the rotation of the rotating shaft, ensure the smoothness and accuracy of the rotation of the rotating shaft, and also improve the service life.

[0025] In some of these embodiments, the operating handle further includes a compression sleeve. The proximal end of the outer sheath tube is inserted into the housing, and the compression sleeve can tightly press the proximal end of the outer sheath tube against the housing. The compression sleeve is used to tightly press the proximal end of the outer sheath tube against the housing to ensure a firm and reliable connection between the outer sheath tube and the housing. The design of the compression sleeve can include a threaded structure, a snap structure, or other fastening methods to facilitate quick assembly and disassembly.

[0026] In some of these embodiments, the endoscopic ultrasound system further includes a signal conversion cable and a host connector, and the host connector is connected to the proximal end of the second signal line. The host connector is used to connect the signal to the host of the endoscopic ultrasound system to achieve signal transmission and device control.

[0027] In some of these embodiments, the knob is provided with rotational scale markings. Through the scale markings on the knob, the user can intuitively read the rotation angle of the knob, precisely control the rotation position of the inner tube, and thus achieve precise adjustment of the rotation angle of the imaging unit connected to the inner tube, significantly improving the operation convenience and operation accuracy of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 FIG. 1 is a schematic structural diagram of an endoscopic ultrasound system provided by an embodiment of the present invention.

[0030] Figure 2 FIG. 2 is a schematic partial structural diagram of an endoscopic ultrasound system provided by an embodiment of the present invention.

[0031] Figure 3 FIG. 3 is a schematic partial structural diagram of an endoscopic ultrasound system provided by an embodiment of the present invention.

[0032] Reference Numerals:

[0033] 10, endoscopic ultrasound system; 100, operating handle; 110, housing; 120, knob; 121, first knob; 122, second knob; 130, rotating shaft; 140, compression sleeve; 200, outer sheath tube; 210, imaging window; 300, inner tube; 400, imaging assembly; 410, signal processor; 420, imaging unit; 430, seat body; 442, second signal line; 500, adapter board; 600, signal conversion cable; 700, host connector. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following detailed description of the specific embodiments of the present invention will be provided in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0035] In the present application, the "proximal end" can be considered as the end close to the operator, which can refer to the end of an instrument or device close to the operator (such as a doctor, nurse, or other medical personnel) or close to the operation handle, and it can be the part that the operator can contact or control. The "distal end" can be considered as the end far from the operator, which can refer to the end of an instrument or device far from the operator or close to the target area in the patient's body.

[0036] Please refer to Figure 1 and Figure 2 , in some embodiments, the present application provides an endoscopic ultrasound system 10, which includes an operation handle 100, an outer sheath 200, an inner tube 300, and an imaging assembly 400. Among them, the proximal end of the outer sheath 200 is fixed to the operation handle 100; the proximal end of the inner tube 300 is connected to the operation handle 100 and can rotate under the drive of the operation handle 100, and the distal end of the inner tube 300 is disposed inside the outer sheath 200 and extends to the distal end of the outer sheath 200; the imaging assembly 400 includes a signal processor 410, an imaging unit 420, and a base 430. The base 430 is fixed to the distal end of the inner tube 300 and can rotate under the drive of the inner tube 300. The signal processor 410 and the imaging unit 420 are both disposed on the base 430. The operation handle 100 can drive the imaging unit 420 connected to the base 430 to rotate through the inner tube 300 to scan the target tissue, and the imaging unit 420 is a multi-element linear array transducer.

[0037] The above endoscopic ultrasound system 10 can at least achieve the following beneficial effects:

[0038] The traditional ultrasonic probe is a single-element transducer, which is driven by a driver to change the scanning of the transducer 360 degrees to form a cross-sectional ultrasonic image. The single-element transducer can display the condition of the lesion, but cannot detect the blood vessels and blood flow around the lesion, and cannot guide further biopsy diagnosis and treatment. The imaging unit 420 used in the ultrasonic endoscope system 10 of the present application is a multi-element linear array transducer, which can more clearly scan the target tissue and its surrounding environment. It drives the multi-element transducer to rotate through a mechanical knob, eliminating the need for the setting of a precision drive device, greatly reducing the product cost, and can focus on the area of ​​interest for ultrasonic scanning as needed during use, thereby improving the accuracy of ultrasonic scanning, and can generate real-time three-dimensional ultrasonic images, and observe the blood vessels and blood flow around the lesion in real time. Specifically, in the present application, the signal processor 410 can process and convert the analog signal collected by the imaging unit 420, and can amplify the weak echo signal collected by the ultrasonic imaging unit 420 to avoid the signal being lost or submerged by noise during transmission and processing, and ensure the clarity and accuracy of the imaging signal. Specifically, the ultrasonic endoscope system 10 of the present application controls the rotation and detection angle of the imaging component 400 through mechanical rotation, and can generate high-resolution images in real time, clearly displaying the blood flow conditions of the target tissue and its surrounding blood vessels. It can not only quickly locate the lesion area, reduce repeated scanning, improve the accuracy and efficiency of treatment operations, shorten the operation time, and reduce patient pain, but also clearly display the distribution of blood vessels, provide doctors with comprehensive imaging information, guide doctors to avoid vascular areas, reduce intraoperative bleeding and tissue damage, significantly reduce the risk of intraoperative bleeding, and improve surgical safety and patient postoperative recovery effects.

[0039] Furthermore, if Figure 2 As shown, in some embodiments, the imaging assembly 400 further includes a first signal line, a second signal line 442 and an adapter plate 500, the adapter plate 500 is arranged in the seat body 430, one end of the first signal line is connected to the signal processor 410, and the other end of the first signal line is connected to the adapter plate 500. One end of the second signal line 442 is connected to the adapter plate 500, and the other end of the second signal line 442 passes through the inner tube 300 and is connected to the signal connector in the operating handle 100. The ultrasonic endoscope system 10 further optimizes the signal transmission structure, and the first signal line is used to connect the signal processor 410 and the adapter plate 500 to ensure that the signal collected by the imaging unit 420 can be efficiently transmitted to the adapter plate 500. The adapter plate 500 is arranged in the seat body 430 as the hub of signal transmission, responsible for integrating the multi-channel signals of the signal processor 410, and integrating the signal lines into a smaller number of second signal lines, which facilitates the layout of the signal lines and ensures signal transmission. .

[0040] Furthermore, in some of these embodiments, the signal processor 410 is an AFE chip. The number of linear array piezoelectric wafers of the multi-element transducer can be 32 / 64 / 128, etc. The multi-element linear array transducer is bonded to the AFE chip. The number of the first signal lines corresponds to the number of elements of the imaging unit 420, that is, each piezoelectric wafer is bonded to the AFE chip, and the AFE chip is then connected to the adapter board through the first signal lines. That is, the signal of each piezoelectric wafer is transferred to the adapter board through a first signal line. The adapter board 500 realizes the efficient integration and optimization of signals, that is, the number of the second signal lines 442 is much less than that of the first signal lines. The setting of the adapter board reduces the number of the second signal lines 442. For example, the number of the second signal lines can be controlled below 10, and at the same time, it ensures the stability and clarity of signal transmission, reduces the complexity of the signal transmission path, and reduces the difficulty of internal wiring of the system.

[0041] Please refer to Figure 2 , in some of these embodiments, an imaging window 210 is provided at the distal end of the outer sheath tube 200, and the imaging unit 420 is located within the imaging window 210. The imaging window 210 is made of a transparent material to ensure that ultrasonic signals can be emitted and received without obstruction, thereby improving the clarity and accuracy of imaging.

[0042] Further, in some of these embodiments, the inner tube 300 is a coiled tube.

[0043] Further, in some of these embodiments, the outer sheath tube 200 can be a multi-layer braided tube. The middle layer can be a metal braid with a winding spring, and its outer layer can be made of a biocompatible polymer material. The outer sheath tube 200 is filled with an ultrasonic coupling agent.

[0044] Further, in some of these embodiments, the imaging unit 420 is embedded on one side of the seat body 430. The seat body is a metal sheath with an opening on one side, and the imaging unit is arranged within the opening.

[0045] Further, in some of these embodiments, the imaging unit 420 is an array ultrasonic transducer. The doctor controls the rotation of the operation handle 100 and rotates it to a corresponding angle, so that the emitting surface of the ultrasonic transducer can be directly facing the lesion position, thereby performing ultrasonic imaging on the lesion, directly presenting a three-dimensional anatomical structure diagram, and performing real-time three-dimensional imaging on the lesion structure and the surrounding blood flow to guide the doctor to formulate a treatment plan or operation.

[0046] Please refer to Figure 3, in some embodiments, the operating handle 100 includes a housing 110 and a knob 120 rotatably sleeved on the housing 110. The proximal end of the outer sheath tube 200 is fixed to the housing 110, and the inner tube 300 extends into the housing 110 and is connected to the knob 120. The knob 120 is rotatably sleeved on the housing 110. By rotating the knob 120, the rotation of the inner tube 300 is driven, so as to drive functional components such as the imaging unit 420 located at the distal end of the inner tube 300 to perform rotational scanning. This design enables the doctor to precisely control the rotation angle and speed of the inner tube 300 through simple operation of the knob 120, realizing precise scanning of the target tissue. Compared with traditional ultrasonic small probes, the setting of a precision driving device is eliminated, greatly reducing the product complexity and the product cost.

[0047] Further, in some embodiments, the knob 120 is provided with a rotation scale mark. Through the scale mark on the knob 120, the user can intuitively read the rotation angle of the knob 120, precisely control the rotation position of the inner tube 300, so as to realize precise adjustment of the rotation angle of the imaging unit 420 connected to the inner tube 300, significantly improving the operation convenience and operation precision of the endoscopic ultrasound system. Specifically, the initial setting is as follows. When the knob is at the 0-degree scale position, the transducer has an angle of 0 with this scale position in the circumferential direction. The angle is marked as "+" in the clockwise direction and "-" in the counterclockwise direction. The setting of the zero scale and the angle direction facilitates operation and improves work efficiency.

[0048] Further, in some embodiments, the operating handle 100 further includes a rotating shaft 130 disposed in the housing 110. The rotating shaft 130 is connected to the knob 120 and can rotate under the drive of the knob 120. The proximal end of the inner tube 300 is connected to the end of the rotating shaft 130 or the rotating shaft 130 is sleeved and fixed outside the inner tube 300. The rotation of the rotating shaft 130 drives the inner tube 300 to rotate. The proximal end of the inner tube 300 extends into the housing 110 and is connected to the rotating shaft 130. Under the drive of the knob 120, the rotating shaft 130 rotates and drives the inner tube 300 to rotate, so as to drive functional components such as the imaging unit 420 located at the distal end of the inner tube 300 to perform rotational scanning. Among them, the rotating shaft 130 can be made of a relatively hard material such as stainless steel and is generally in a hollow tubular shape. The connection between the knob and the rotating shaft can be realized by using existing technical means, as long as the rotation control and angle fixation of the rotating shaft by the knob can be achieved to meet the requirements, which will not be elaborated here. Further, in some embodiments, the rotating shaft is fixedly sleeved on the inner tube.

[0049] Further, in some embodiments, the knob 120 includes a first knob 120 and a second knob 120. The first knob 120 and the second knob 120 are rotatably sleeved on the housing 110 and are sequentially distributed along the axial direction of the inner tube 300. The first knob 120 is connected to the rotating shaft 130 and can drive the rotating shaft 130 and the inner tube 300 connected to the rotating shaft 130 to rotate in a first rotation direction. The second knob 120 is connected to the rotating shaft 130 and can drive the rotating shaft 130 and the inner tube 300 connected to the rotating shaft 130 to rotate in a second rotation direction. The first rotation direction and the second rotation direction are opposite. The first knob 120 and the second knob 120 are linked to the rotating shaft 130 through a mechanical connection. When the user rotates the knob, the rotating shaft 130 can be driven, and the inner tube 300 connected to the rotating shaft 130 will rotate accordingly, realizing the control of the ultrasonic imaging unit. Through the design of the first knob 120 and the second knob 120, the opposite rotation direction design enables the user to more precisely control the rotation angle of the inner tube 300, improving the operation accuracy of the ultrasonic endoscope system. It can be understood that the rotation of the inner tube 300 will drive the imaging unit to adjust the scanning angle or direction, and the design of the knob enables the user to more flexibly control the scanning range of the ultrasonic imaging unit.

[0050] Further, in some embodiments, the operating handle 100 further includes a bearing (not shown) disposed in the housing 110. The outer ring of the bearing is fixed to the inner wall of the housing 110, and the inner ring of the bearing is fixedly sleeved on the rotating shaft 130. The outer ring of the bearing is fixed to the housing, and the bearing can be used to support the rotating shaft 130, reduce the frictional resistance when the rotating shaft 130 rotates, ensure the smoothness and accuracy of the rotation of the rotating shaft 130, and also improve the service life.

[0051] Further, in some embodiments, the operating handle 100 further includes a compression sleeve 140. The proximal end of the outer sheath tube 200 is inserted into the housing 110, and the compression sleeve 140 can press the proximal end of the outer sheath tube 200 against the housing 110. Ensure the firm and reliable connection between the outer sheath tube 200 and the housing 110. The design of the compression sleeve 140 can include a threaded structure, a snap structure or other fastening methods for easy quick assembly and disassembly.

[0052] Please refer to Figure 1 , in some embodiments, the ultrasonic endoscope system 10 further includes a host connector 700, and the host connector 700 is connected to the proximal end of the second signal line 442. The host connector 700 is used to connect the signal to the host of the ultrasonic endoscope system 10 to realize signal transmission and device control.

[0053] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0054] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

[0055] In the description of the present application, it should be understood that if there appear such terms as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present application.

[0056] In addition, if there appear such terms as "first" and "second", these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, if there appears the term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0057] In the present application, unless otherwise clearly specified and limited, if there appear such terms as "install", "connect", "connection", "fix", etc., these terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0058] In this application, unless otherwise clearly stipulated and defined, when a first feature is described as being "on" or "under" a second feature or similar descriptions, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0059] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0060] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "other embodiments" etc. mean that the specific features, structures, materials or features described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

Claims

1. An ultrasonic endoscope system, characterized in that: include: Operating handle; An outer sheath tube, the proximal end of which is fixed to the operating handle; an inner tube, the proximal end of which is connected to the operating handle and can rotate under the drive of the operating handle, and the inner tube is arranged in the outer sheath tube and extends to the distal end of the outer sheath tube; and An imaging component, the imaging component includes a signal processor, an imaging unit and a seat body, the seat body is fixed to the distal end of the inner tube and can rotate under the drive of the inner tube, the signal processor and the imaging unit are both arranged on the seat body, the imaging unit scans the target tissue when rotating, and the imaging unit is a multi-element linear array transducer.

2. The ultrasonic endoscopic system according to claim 1, characterized in that: The imaging assembly also includes a first signal line, a second signal line and an adapter plate, the adapter plate is arranged in the base body, one end of the first signal line is connected to the signal processor, and the other end is connected to the adapter plate, one end of the second signal line is connected to the adapter plate, and the other end passes through the inner tube and is connected to the signal connector in the operating handle.

3. The ultrasonic endoscopic system according to claim 2, characterized in that: The signal processor is an AFE chip, the multi-element linear array transducer is bonded to the AFE chip, the number of the first signal lines corresponds to the number of elements of the multi-element linear array transducer, and the number of the second signal lines is less than the number of the first signal lines.

4. The ultrasonic endoscopic system according to any one of claims 1 to 3, characterized in that: An imaging window is provided at the distal end of the outer sheath tube, and the imaging unit is located in the imaging window; And / or, the imaging unit is embedded in one side of the base; And / or, the inner tube is a spring tube; And / or, the seat body is a metal sheath.

5. The ultrasonic endoscopic system according to any one of claims 1 to 3, characterized in that: The operating handle comprises a shell and a knob rotatably sleeved on the shell, the proximal end of the outer sheath is fixed to the shell, and the inner tube extends into the shell and is connected to the knob.

6. The ultrasonic endoscopic system according to claim 5, characterized in that: The operating handle also includes a rotating shaft arranged in the shell, the rotating shaft is connected to the knob and can rotate under the drive of the knob, and the proximal end of the inner tube is connected to the rotating shaft and can rotate under the drive of the rotating shaft.

7. The ultrasonic endoscopic system according to claim 6, characterized in that: The knob includes a first knob and a second knob, the first knob and the second knob are distributed sequentially along the axial direction of the inner tube, the first knob is connected to the rotating shaft and can drive the rotating shaft and the inner tube connected to the rotating shaft to rotate along a first rotation direction, the second knob is connected to the rotating shaft and can drive the rotating shaft and the inner tube connected to the rotating shaft to rotate along a second rotation direction, and the first rotation direction and the second rotation direction are opposite.

8. The ultrasonic endoscopic system according to claim 6, characterized in that: The rotating shaft is fixedly sleeved outside the inner tube.

9. The ultrasonic endoscopic system according to claim 6, characterized in that: The operating handle further comprises a bearing arranged in the housing, the outer ring of the bearing is fixed to the inner wall of the housing, and the inner ring of the bearing is fixedly sleeved on the rotating shaft.

10. The ultrasonic endoscopic system according to claim 5, characterized in that: The knob is provided with a rotation scale mark.

Images