CN112957075B - Slip ring type ultrasonic endoscope probe and imaging method - Google Patents
Slip ring type ultrasonic endoscope probe and imaging method Download PDFInfo
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- 239000000523 sample Substances 0.000 title claims abstract description 119
- 238000003384 imaging method Methods 0.000 title claims abstract description 22
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- 230000001360 synchronised effect Effects 0.000 claims description 9
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- 230000005284 excitation Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
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- 210000001519 tissue Anatomy 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 2
- 230000036285 pathological change Effects 0.000 description 2
- 231100000915 pathological change Toxicity 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000001574 biopsy Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 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
- A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
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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
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
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Abstract
The invention relates to a slip ring type ultrasonic endoscope probe and an imaging method, the probe comprises a probe body and a mirror body, wherein a rotating shaft is fixed at the rear end part of the probe body, the rotating shaft extends into the mirror body from the front end part of the mirror body, the ultrasonic endoscope probe also comprises a driver which is positioned in the mirror body and is used for driving the rotating shaft to rotate around the axis direction of the ultrasonic endoscope probe, a multi-channel slip ring which is positioned between the probe body and the mirror body, and a flexible epitaxial tube which is positioned at the front end of the mirror body, is communicated with a working cavity in the mirror body and extends forwards to form a stretchable, wherein the rotating range of the rotating shaft is 0-360 degrees, the front end part of the flexible epitaxial tube is positioned in an observation area formed by the probe body, and the body part of the flexible epitaxial tube is deformed along with the rotation of the probe body. The invention can observe and ultrasonically image the lesion part at multiple angles on the premise of small damage to in-vivo tissues, and can treat the lesion part no matter the probe body is positioned at any angle, thereby being convenient to operate.
Description
Technical Field
The invention belongs to the technical field of clinical medical treatment, and particularly relates to a slip ring type ultrasonic endoscope probe, and an imaging method of the slip ring type ultrasonic endoscope probe.
Background
As known, the ultrasonic endoscope is an endoscope which fills some special indications which cannot be covered by common endoscopes, body surface ultrasound, CT and the like along with continuous progress and function expansion of the technology, and the ultrasonic endoscope can realize close-range observation of internal lesions and minimally invasive treatment such as puncture biopsy, ablation and the like on the lesions under the guidance of ultrasound by leading the endoscope with an ultrasonic probe at the top to the lesions of the digestive tract, the respiratory tract and the like through the natural cavity of the human body, and has the characteristics of no radiation, small wound, quick recovery and the like, and more importance and use are paid in clinic in recent years.
In the prior art, the ultrasonic probe at the front end of the ultrasonic endoscope is directly fixedly connected with the endoscope body at the rear end, then the control of the posture of the endoscope body is realized by regulating and controlling the snake bone in the endoscope body, namely, up, down, left and right in four dimensions, so that the position of the probe at the front end in the body is changed, the observation of targets in different areas in the body is realized, and then the following technical problems easily exist in the actual implementation process of the ultrasonic endoscope in the scheme:
1) Because the space in the human body is limited, the adjustment of the general posture is required to be carried out under the state that the mirror body is relatively straight, and the mirror body can be put into the corresponding lesion part for subsequent observation and diagnosis, but if the mirror body is rotated to observe the peripheral part after bending, the probe can easily cause damage to the internal tissues;
2) The operation is inconvenient, the requirements on the technical level of doctors are high, and the operation time is prolonged, so that the popularization and the use of related diagnosis and treatment technologies are limited.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing a slip ring type ultrasonic endoscope probe.
The invention also relates to an imaging method of the slip ring type ultrasonic endoscope probe.
In order to solve the technical problems, the invention adopts the following technical scheme:
The utility model provides a slip ring type ultrasonic endoscope probe, it includes probe body and mirror body, wherein the probe body sets up the front end at the mirror body, be fixed with the pivot at the rear end of probe body, the pivot stretches into the mirror from the front end of mirror body, ultrasonic endoscope probe still includes and is located the mirror body and is used for driving this pivot around the pivoted driver of self axis direction, be located the multichannel sliding ring between probe body and the mirror body, and be located the mirror body front end and the internal working channel intercommunication of mirror and the forward extension form tensile flexible epitaxial tube, wherein the rotation scope of pivot is 0~360, the front end location of flexible epitaxial tube is in the viewing area that the probe body formed, and flexible epitaxial tube's body part is deformed along with the rotation of probe body.
Preferably, the multi-channel sliding ring is positioned in the lens body, and the rotating shaft penetrates through the multi-channel sliding ring and extends towards the rear end of the lens body. Avoid the part to concentrate in a certain place, cause the external diameter too big, be unfavorable to implement the endoscopic, simultaneously, also make full use of the space of mirror body, form the protection to spare part moreover.
According to one specific implementation and preferred aspect of the invention, the multi-channel slip ring comprises a slip ring rotor fixed on the rotating shaft, and a slip ring stator positioned in the mirror body and through which the rotating shaft is movably penetrated, wherein the connecting cable of the probe body is connected to the slip ring rotor, and the cable in the mirror body is connected to the slip ring stator. In this way, the slip ring rotor is positioned relative to the slip ring and then changed to form a connection electrode after each rotation, so that the system wants to excite and receive signals of the same array element at different positions, and synchronous adjustment is needed according to the rotation angle.
Preferably, the number of the channels of the multi-channel slip ring ranges from 2 to 256.
Further, the multi-channel slip ring is an optical fiber slip ring, a magnetic slip ring, a carbon brush slip ring or a brush wire electric slip ring.
According to a further specific and preferred aspect of the invention, the flexible extension tube is fixed to the probe body from the front end by means of a connecting sleeve. Thus, the front end of the flexible epitaxial tube can be ensured to be always in the observation area regardless of the rotation of the probe body to any angle.
The applicant has explained here that the flexible extension tube is an extension of the working channel in the scope body, and that one end is fixed in abutment with the working channel of the scope body, so that a puncture needle, an ablation probe, a syringe or the like entering through the working channel can be guided into the observation plane of the probe after rotation.
The flexible extension tube is a tube with a certain stretching effect, and can be a plastic tube, a rubber tube or a spring tube. In order to enhance the stretching effect, the structure can be provided with a certain folding structure similar to that of a stretched straw. And the topmost end of the flexible epitaxial tube is connected with a connecting rod (or a connecting pipe sleeve), and the other end of the connecting rod is fixed on the probe. When the probe rotates, the probe is pulled to move through the connecting rod. The epitaxial lumen may be removable and replaceable to ensure tensile properties and safety.
Meanwhile, in order to ensure that the epitaxial tube cavity is not wound due to multiple rotations, the rotation range of the motor is directly set to be 0-360 degrees (which is equivalent to the rotation range of the rotating shaft to be 0-360 degrees), and the positioning can be accurately controlled in the range.
According to still another specific implementation and preferred aspect of the present invention, the rotation axis is consistent with a length direction of the probe body, wherein a working surface formed by the probe body is arranged to arch outwards from front and rear end portions, an observation area formed by the working surface of the probe body is in a sector shape, and a front end portion of the flexible epitaxial tube is located in the sector-shaped observation area. Firstly, through the arrangement of the rotating shaft, when the probe body rotates around the rotating shaft, the damage to internal tissues is small; and secondly, the information is obtained through a sector observation area formed by the arc-shaped working surface, so that ultrasonic imaging is facilitated.
In addition, the driver is a micro motor which is arranged in the lens body and is positioned behind the multichannel slip ring, wherein an output shaft of the micro motor is coaxial with the driver, the rotating angle range of the micro motor is 0-360 degrees, and the micro motor is a direct current motor, a stepping motor, a brush motor or a brushless motor.
Meanwhile, a cover tube with a shielding layer is further arranged in the lens body, and cables are packaged in the cover tube through bundling. The cables are prevented from being scattered in the mirror body.
The other technical scheme of the invention is as follows: a method of imaging a slip ring type ultrasonic endoscope probe, comprising the steps of:
1) After the probe is delivered to a lesion part to be detected through the delivery and the control of the lens body, the probe starts to be adjusted, meanwhile, at the initial moment, the position of the probe is set as (X 0,Y0,θ0), the corresponding position of each cable in the slip ring is N 0, and the position of the rotating shaft is theta 0;
2) The imaging screen controls the driver to drive the rotating shaft to rotate clockwise or anticlockwise, and if the rotating speed of the rotating shaft is V θ and the position of the rotating shaft at a certain moment in the rotating process is thetat, the corresponding position of each cable in the multi-channel slip ring is Nt at the thetat moment, and the position of the probe body is (Xt, yt and thetat), namely the excitation of the probe body and the signal of the same array element are received, and synchronous adjustment is needed according to the rotating angle;
3) After synchronous adjustment, as the sequence of each array element in the probe corresponding to the system transceiving channel changes, firstly, the sequence of excitation of each system transceiving channel and the corresponding delay are redefined according to the corresponding new channel sequence (line sequence) and the requirement of beam forming, then, a transmitting circuit sequentially excites the corresponding adjusted probe array elements according to the sequence to generate ultrasonic waves, ultrasonic echoes are received by the probe and enter an ultrasonic signal receiving circuit through a high-low voltage gating switch, after being processed by front-end circuits such as low noise amplification, TGC gain, low-pass filtering and the like, the ultrasonic signals are subjected to digital-analog conversion and then are subjected to beam forming and signal preprocessing, and finally, the processing results are transmitted to a system upper computer to be subjected to post-processing and image display, and finally, images such as a B mode or Doppler and the like are formed.
In step 2), the applicant interprets here, for the angular adjustment, that: because the rotating speed of the driver and the positions of the electrodes corresponding to the connecting cables of the slip ring are known, the real-time dynamic change control can be realized after corresponding parameters are set in the system, and the probe is ensured to have accurate imaging all the time in the rotating process.
Meanwhile, the specific adjustment process is referred to as follows: because the corresponding positions of the cables in the slide ring change, namely the serial numbers of the imaging channels corresponding to the array elements of the probe need to be correspondingly adjusted, the image is ensured to be correct, for example, the initial moment of the array element 1 of the probe corresponds to the transmitting and receiving imaging channels of the array element 1, after the rotation angle, the array element 1 of the probe changes into the transmitting position 2 corresponding to the transmitting and receiving imaging channels of the system due to the change of the connecting electrode in the slide ring, and the array element 2 changes into the transmitting and receiving imaging channels of the system 3, and so on. Thus, at different positions, the system wants to excite and receive the signals of the same array element, and synchronous adjustment is needed according to the rotation angle.
In addition, in order to ensure that the flexible epitaxial tube cannot be wound due to multiple rotations, the rotation range of the motor is set to be 0-360 degrees, and positioning can be accurately controlled within the range.
Meanwhile, after the use is finished, the motor is automatically reset, and the probe returns to the initial position.
Due to the implementation of the technical scheme, compared with the prior art, the invention has the following advantages:
On one hand, the invention can observe and ultrasonically image the lesion part at multiple angles under the premise of small damage to internal tissues by combining the flexible rotation of the probe body and the transmission of the slip ring to the information; on the other hand, through the setting of flexible epitaxial tube, no matter the probe body is in any angle, can both treat pathological change position, convenient operation can effectively improve relevant operation simultaneously and diagnose efficiency, has very big popularization meaning.
Drawings
The invention will now be described in further detail with reference to the drawings and to specific examples.
FIG. 1 is a schematic structural view of a slip ring ultrasonic endoscope probe of the present invention;
wherein: 1. a probe body; 10. a rotating shaft; 1a, working surface;
2. A mirror body;
3. A driver;
4. a multi-channel slip ring; 40. a slip ring rotor; 41. a slip ring stator;
5. A flexible epitaxial tube;
6. A connecting pipe sleeve;
7. And sealing the leather tube.
Detailed Description
In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature. It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements 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 the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1, the slip ring type ultrasonic endoscope probe according to the present embodiment comprises a probe body 1, a mirror body 2, a driver 3, a multi-channel slip ring 4 and a flexible epitaxial tube 5.
Specifically, the probe body 1 is located at the front end of the mirror body 2, a rotating shaft 10 is fixed at the rear end of the probe body 1, and the rotating shaft 10 extends into the mirror body 2 from the front end of the mirror body 2.
The rotation shaft 10 is consistent with the length direction of the probe body 1, wherein the working surface 1a formed by the probe body 1 is outwards arched from the front end and the rear end, an observation area formed by the working surface of the probe body 1 is fan-shaped, and the front end of the flexible extension 5 pipe is positioned in the fan-shaped observation area. Firstly, through the arrangement of the rotating shaft, when the probe body rotates around the rotating shaft, the damage to internal tissues is small; and secondly, the information is obtained through a sector observation area formed by the arc-shaped working surface, so that ultrasonic imaging is facilitated.
And a driver 3 which is provided in the mirror body 2 and is used for driving the rotating shaft 10 to rotate around the axis direction thereof.
Specifically, the driver 3 is a micro-motor arranged in the mirror body 2 and located behind the multichannel slip ring 4, wherein an output shaft of the micro-motor is coaxial with the driver, a rotation angle range of the micro-motor is 0-360 degrees, and the micro-motor is a direct current motor, a stepping motor, a brush motor or a brushless motor.
The multi-channel sliding ring 4 is positioned in the mirror body 2, and the rotating shaft 10 passes through the multi-channel sliding ring 4 and extends towards the rear end of the mirror body 2. Avoid the part to concentrate in a certain place, cause the external diameter too big, be unfavorable to implement the endoscopic, simultaneously, also make full use of the space of mirror body, form the protection to spare part moreover.
In this example, the multi-channel slip ring 4 comprises a slip ring rotor 40 fixed on the rotating shaft 10, and a slip ring stator 41 positioned in the mirror body 2 and through which the rotating shaft 10 is movably penetrated, wherein the connecting cable of the probe body 1 is connected to the slip ring rotor 40, and the cable in the mirror body 2 is connected to the slip ring stator 41. In this way, the slip ring rotor is positioned relative to the slip ring and then changed to form a connection electrode after each rotation, so that the system wants to excite and receive signals of the same array element at different positions, and synchronous adjustment is needed according to the rotation angle.
Specifically, the number of channels of the multi-channel slip ring 4 ranges from 2 to 256, and the multi-channel slip ring is an optical fiber slip ring, a magnetic slip ring, a carbon brush slip ring or a wire brushing electric slip ring.
The flexible epitaxial tube 5 is fixed on the probe body 1 from the front end by a connecting sleeve 6. Thus, the front end of the flexible epitaxial tube can be ensured to be always in the observation area regardless of the rotation of the probe body to any angle.
The front end portion of the flexible epitaxial tube 5 is positioned in the observation area formed by the probe body 1, and the body portion of the flexible epitaxial tube 5 is deformed with the rotation of the probe body 1.
The applicant has explained here that the flexible extension tube 5 is an extension of the working channel in the scope body 2, and that one end is fixed in abutment with the working channel of the scope body, so that a puncture needle, an ablation probe, a syringe or the like, which is entered through the working channel, can be guided into the viewing surface of the probe after rotation.
The flexible extension tube 5 is a tube with a certain stretching effect, and may be a plastic tube, a rubber tube, a spring tube, or the like. In order to enhance the stretching effect, the structure can be provided with a certain folding structure similar to that of a stretched straw. And the topmost end of the flexible epitaxial tube is connected with a connecting rod (or a connecting pipe sleeve), and the other end of the connecting rod is fixed on the probe. When the probe rotates, the probe is pulled to move through the connecting rod. The epitaxial lumen may be removable and replaceable to ensure tensile properties and safety.
Meanwhile, in order to ensure that the epitaxial tube cavity is not wound due to multiple rotations, the rotating range of the micro motor is directly set to be 0-360 degrees (which is equivalent to the rotating range of the rotating shaft to be 0-360 degrees), and the positioning can be accurately controlled in the range.
In addition, the mirror body 2 is also provided with a cover tube 7 with a shielding layer, and the cables are packaged in the cover tube 7 through bundling. The cables are prevented from being scattered in the mirror body.
In summary, the molding process of the present embodiment is as follows:
1) After the probe is delivered to a lesion part to be detected through the delivery and the control of the lens body, the probe starts to be adjusted, meanwhile, at the initial moment, the position of the probe is set as (X 0,Y0,θ0), the corresponding position of each cable in the slip ring is N 0, and the position of the rotating shaft is theta 0;
2) The method comprises the steps that through an imaging screen, a driver is controlled to drive a rotating shaft to rotate clockwise or anticlockwise, the rotating speed of the rotating shaft is V θ, the position of a certain moment in the rotating process of the rotating shaft is thetat, then at the thetat moment, the position corresponding to each cable in a multi-channel slip ring is Nt, the position of a probe body is (Xt, yt, thetat), namely, the excitation of the probe body and the signal of a same array element are required to be synchronously adjusted according to the rotating angle, for example, the initial moment of the array element 1 of the probe corresponds to the emitting and receiving imaging channel 1, after the rotating angle, the array element 1 of the probe changes into the emitting and receiving imaging channel 2 of a corresponding system due to the change of an connecting electrode in the slip ring, and the array element 2 becomes the emitting and receiving imaging channel 3 of the system, and so on;
3) After synchronous adjustment, as the sequence of each array element in the probe corresponding to the system transceiving channel is changed, firstly, the sequence of excitation of each system transceiving channel and the corresponding delay are redefined according to the corresponding new channel sequence (line sequence) and the requirement of beam forming, then, a transmitting circuit sequentially excites the corresponding adjusted probe array element according to the sequence to generate ultrasonic waves, ultrasonic echoes are received by the probe and enter an ultrasonic signal receiving circuit through a high-low voltage gating switch, after being processed by front-end circuits such as low noise amplification, TGC gain, low-pass filtering and the like, the ultrasonic echoes are subjected to digital-analog conversion and then are subjected to beam forming and signal preprocessing, finally, the processing results are transmitted to a system upper computer for post-processing and image display, finally, images such as a B mode or Doppler are formed, and meanwhile, after the use is finished, a motor is automatically reset, and the probe returns to an initial position.
Therefore, the present embodiment has the following advantages:
1. Under the condition that the probe body flexibly rotates and the slip ring is combined with the transmission of information, the multi-angle observation and ultrasonic imaging can be carried out on the lesion part on the premise of small damage to internal tissues;
2. through the setting of flexible epitaxial tube, no matter the probe body is in any angle, can both treat pathological change position, convenient operation can effectively improve relevant operation simultaneously and diagnose efficiency, has very big popularization meaning.
The present invention has been described in detail with the purpose of enabling those skilled in the art to understand the contents of the present invention and to implement the same, but not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a slip ring type ultrasonic endoscope probe, its includes probe body and mirror body, wherein the probe body sets up the front end of mirror body, its characterized in that:
A rotating shaft is fixed at the rear end part of the probe body, the rotating shaft extends into the endoscope body from the front end part of the endoscope body, the ultrasonic endoscope probe also comprises a driver which is positioned in the endoscope body and is used for driving the rotating shaft to rotate around the axis direction of the ultrasonic endoscope body, a multi-channel slip ring which is positioned between the probe body and the endoscope body, and a flexible epitaxial tube which is positioned at the front end of the endoscope body, is communicated with a working cavity in the endoscope body and extends forwards to form a stretchable flexible epitaxial tube, the rotation range of the rotating shaft is 0-360 degrees, the front end part of the flexible epitaxial tube is positioned in an observation area formed by the probe body, and the body part of the flexible epitaxial tube deforms along with the rotation of the probe body; the rotating shaft is consistent with the length direction of the probe body, a working surface formed by the probe body is outwards arched from the front end part and the rear end part, an observation area formed by the working surface of the probe body is in a sector shape, and the front end part of the flexible epitaxial tube is positioned in the sector-shaped observation area; the multi-channel sliding ring is positioned in the lens body, and the rotating shaft penetrates through the multi-channel sliding ring and extends towards the rear end of the lens body; the multi-channel slip ring comprises a slip ring rotor fixed on the rotating shaft and a slip ring stator positioned in the lens body and used for the rotating shaft to movably penetrate out, wherein a connecting cable of the probe body is connected to the slip ring rotor, and a cable in the lens body is connected to the slip ring stator; after the slip ring rotor is positioned relative to the slip ring and rotates by one angle, the conversion of the connecting electrode is formed, so that the ultrasonic endoscope probe wants to excite and receive signals of the same array element at different positions, and synchronous adjustment is required according to the rotating angle.
2. The slip ring ultrasonic endoscope probe of claim 1, wherein: the number of channels of the multi-channel slip ring ranges from 2 to 256, and the multi-channel slip ring is an optical fiber slip ring, a magnetic slip ring, a carbon brush slip ring or a brush wire electric slip ring.
3. The slip ring ultrasonic endoscope probe of claim 1, wherein: the flexible epitaxial tube is fixed on the probe body from the front end part through a connecting tube sleeve.
4. A slip ring ultrasonic endoscope probe according to claim 1 or 3 and wherein: the flexible extension tube is a plastic tube, a rubber tube or a spring tube.
5. The slip ring ultrasonic endoscope probe of claim 1, wherein: the driver is a micro motor which is arranged in the lens body and positioned behind the multichannel slip ring, wherein an output shaft of the micro motor is coaxial with the driver, the rotating angle range of the micro motor is 0-360 degrees, and the micro motor is a direct current motor, a stepping motor, a brush motor or a brushless motor.
6. The slip ring ultrasonic endoscope probe of claim 1, wherein: and a cover tube with a shielding layer is further arranged in the lens body, and the cables are packaged in the cover tube through bundling.
7. An imaging system of a slip ring type ultrasonic endoscope probe, which is characterized in that: a slip ring ultrasonic endoscope probe according to any of claims 1-6 and wherein the method of imaging comprises the steps of:
1) After the probe is delivered to a lesion part to be detected through the delivery and the control of the lens body, the probe starts to be adjusted, meanwhile, at the initial moment, the position of the probe body is set to be (X 0,Y0,θ0), the corresponding position of each cable in the slip ring is set to be N 0, and the position of the rotating shaft is set to be theta 0;
2) The imaging screen controls the driver to drive the rotating shaft to rotate clockwise or anticlockwise, and if the rotating speed of the rotating shaft is V θ and the position of the rotating shaft at a certain moment in the rotating process is thetat, the corresponding position of each cable in the multi-channel slip ring is Nt at the thetat moment, and the position of the probe body is (Xt, yt and thetat), namely the excitation of the probe body and the signal of the same array element are received, and synchronous adjustment is needed according to the rotating angle;
3) After synchronous adjustment, as the sequence of each array element in the probe corresponding to the system transceiving channel changes, firstly, the sequential excitation time sequence and corresponding delay time of each system transceiving channel are redefined according to the corresponding new channel sequence number and the requirement of beam forming, then, a transmitting circuit sequentially excites the corresponding adjusted probe array elements according to the time sequence to generate ultrasonic waves, ultrasonic echoes are received by the probe, enter an ultrasonic signal receiving circuit through a high-low voltage gating switch, are subjected to digital-analog conversion after being processed by front-end circuits such as low noise amplification, TGC gain, low-pass filtering and the like, and then are subjected to beam forming and signal preprocessing, finally, the processing result is transmitted to a system upper computer for post-processing and image display, finally, a B mode or Doppler image is formed, and meanwhile, after the use is finished, a motor is automatically reset, and the probe returns to an initial position.
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