A rectal ultrasonic endoscope and a rectal ultrasonic endoscope system

Abstract

This invention discloses a rectal ultrasound endoscope and a rectal ultrasound endoscope system, comprising: a first insertion part, the distal end of which is provided with an ultrasound transducer, and the first insertion part having a first internal channel with openings at both ends; and a second insertion part, the distal end of which is provided with a headstock and optical components, an illumination component, and a flow channel provided on the headstock, the second insertion part being detachably passable through the first internal channel. In use, the second insertion part is inserted into the first insertion part, and the first insertion part is inserted into the human body. Ultrasound images are acquired using the ultrasound transducer for rectal detection and diagnosis. When a rectal foreign body is detected, the flow channel of the second insertion part is used to flush and suction the foreign body area, ensuring accurate positioning and precise rectal cleaning. Optical images are acquired using the optical components to further confirm the cleaning effect. During the diagnosis and treatment process, if the optical image becomes blurred, the second insertion part can be immediately withdrawn, and the optical components can be quickly cleaned intraoperatively using methods such as wiping with alcohol.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to a rectal ultrasound endoscope. Furthermore, this invention also relates to a rectal ultrasound endoscope system comprising the aforementioned rectal ultrasound endoscope. Background Technology

[0002] In rectal clinical diagnosis and treatment, an ultrasound probe and an instrument with flushing and suction functions are required. The two need to be used interchangeably. That is, the clinician first uses the ultrasound probe for detection and diagnosis. If a foreign body is found during the detection and diagnosis, the doctor needs to locate the foreign body based on clinical experience, then remove the ultrasound probe, and then use the instrument with flushing and suction functions to flush the rectal contaminants (such as feces, debris, etc.) and suction the residual liquid.

[0003] However, the use of these two instruments together is inconvenient in operation, and requires ultrasound to predict the location and direction of the foreign body, which requires extensive clinical experience. Therefore, the accuracy of foreign body identification is low, and the rectum cannot be accurately cleaned.

[0004] Therefore, how to achieve precise rectal cleaning is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a rectal ultrasound endoscope that can achieve precise cleaning of the rectum.

[0006] Another object of the present invention is to provide a rectal ultrasound endoscope system including the above-described rectal ultrasound endoscope, which can achieve precise cleaning of the rectum.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A rectal ultrasound endoscope, comprising:

[0009] The first insertion part has an ultrasonic transducer at its distal end, and the first insertion part has a first internal channel with openings at both ends.

[0010] The second insertion part has a head end seat at its distal end and an optical component, an illumination component and a flow channel provided on the head end seat. The second insertion part can be detachably passed through the first built-in channel.

[0011] Optionally, it also includes a limiting member connected between the first insertion part and the second insertion part to limit the insertion depth of the second insertion part into the first insertion part.

[0012] Optionally, the limiting member is detachably provided on the first insertion portion and / or the second insertion portion.

[0013] Optionally, the number of limiting members is at least two, and all the limiting members are arranged sequentially at intervals along the length direction of the first insertion part or the second insertion part to limit the distance by which the distal end of the second insertion part extends beyond the distal end of the first insertion part.

[0014] Optionally, the first insertion part is connected to the first operating part, and the first operating part is provided with a second built-in channel that communicates with the first built-in channel and extends through the proximal and distal ends of the first operating part for the second insertion part to pass through.

[0015] Optionally, an ultrasonic cable is provided in the first insertion part, one end of which is connected to the ultrasonic transducer for transmitting ultrasonic images acquired by the ultrasonic transducer.

[0016] Optionally, the second insertion part is provided with an image transmission optical fiber and an illumination optical fiber. One end of the image transmission optical fiber is connected to the optical component for transmitting the image signal acquired by the optical component; one end of the illumination optical fiber is connected to the illumination component for providing an illumination light water delivery interface.

[0017] Optionally, the second insertion part is provided with a water delivery channel, a suction channel and a main channel inside. The water delivery channel and the suction channel are both connected to the main channel. The water delivery channel is used to deliver water to the main channel. The suction channel is used to connect to a suction pump. The main channel is connected to the flow port.

[0018] Optionally, the distal end of the first insertion part is provided with a probe housing, the ultrasonic transducer is located on the outer periphery of the probe housing, and the first built-in channel penetrates through the probe housing.

[0019] A rectal ultrasound endoscope system, comprising any one of the above-mentioned rectal ultrasound endoscopes.

[0020] The beneficial effects of the rectal ultrasound endoscope provided by this invention are as follows:

[0021] During the examination and treatment of the subject, the first insertion part is inserted into the anus, and the second insertion part is inserted from the proximal end of the first internal channel, reaching the distal end of the first internal channel. The first insertion part is equipped with an ultrasonic transducer. By controlling the ultrasonic transducer to emit ultrasonic waves and receive the ultrasonic echoes reflected from human tissue structures, an ultrasonic image can be obtained. This image can then be used to examine and treat the rectum. When a foreign body is detected in the rectum via ultrasound, the flow channel of the second insertion part can be used to simultaneously flush and suction the area containing the foreign body. Flushing and suction are performed under the guidance of the ultrasound image, ensuring accurate positioning and enabling precise rectal cleaning. The purpose is to facilitate clinical diagnosis and treatment; at the same time, optical images can be acquired using optical components, thereby further confirming the cleaning effect through optical images; in addition, since the second insertion part can be detachably passed through the first built-in channel, that is, the second insertion part can be pulled out from the first built-in channel at any time, so if the optical image becomes blurry during the diagnosis and treatment process, the second insertion part can be pulled out immediately, and the optical components can be quickly cleaned during the operation by wiping with alcohol or other means; moreover, by pulling the second insertion part out from the first built-in channel of the first insertion part to clean the optical components and the illumination components, it is possible to avoid setting up nozzles specifically for cleaning the optical components and the illumination components on the head end, thus reducing the size of the head end.

[0022] The rectal ultrasound endoscope system provided by the present invention includes the above-mentioned rectal ultrasound endoscope and has the above-mentioned beneficial effects. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a rectal ultrasound endoscope provided in a specific embodiment of the present invention;

[0025] Figure 2 for Figure 1 The image shows a partial sectional view of the rectal endoscope near the distal end.

[0026] Figure 3 This is a schematic diagram of the structure after the second insertion part is withdrawn from the first insertion part;

[0027] Figure 4 A schematic diagram of the structure of an ultrasonic probe consisting of a first insertion part, a first operating part, and an ultrasonic connection part;

[0028] Figure 5 This is a schematic diagram of a partial structure of the first insertion part near the distal end;

[0029] Figure 6 This is a partial cross-sectional view of the first insertion part near the distal end;

[0030] Figure 7 A schematic diagram of the structure of an endoscope consisting of a second insertion section, a second operation section, and a light guide section;

[0031] Figure 8 This is a partial cross-sectional view of the second insertion part near the distal end;

[0032] Figure 9 This is a schematic diagram of the end face of the second insertion part;

[0033] Figure 10 A schematic diagram showing the connection structure of the water supply channel, suction channel, and main channel of the second insertion section;

[0034] Figure 11 This is a schematic diagram of the structure of the second operating unit;

[0035] Figure 12 This is a schematic diagram of the valve body structure;

[0036] Figure 13 This is a schematic diagram of the structure of the rectal ultrasound endoscopy system provided in a specific embodiment of the present invention;

[0037] Figure 14 This is a schematic diagram illustrating the working principle of a rectal ultrasound endoscopy system.

[0038] Figure label:

[0039] 1-First insertion part; 11-Ultrasonic transducer; 12-First built-in channel; 13-Probe housing; 2-Second insertion part; 21-Headpiece; 22-Optical assembly; 23-Illumination assembly; 24-Flow channel opening; 25-Limiting component; 26-Main channel; 27-Metal connector; 28-Water supply channel; 29-Suction channel; 3-First operating part; 31-First smart button; 4-Ultrasonic connection part; 5-Second operating part; 51-Second smart button; 52-Suction button; 53-Water supply interface; 54-Valve body; 541-Suction inlet; 542-Suction outlet; 6-Light guide part; 61-Image interface; 62-Illumination interface; 63-Suction interface; 7-Ultrasonic main unit; 81-Endoscope processor; 82-Display; 9-Light source; 101-Suction pump. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] The core of this invention is to provide a rectal ultrasound endoscope that enables precise cleaning of the rectum. Another core aspect of this invention is to provide a rectal ultrasound endoscope system including the aforementioned rectal ultrasound endoscope, which enables precise cleaning of the rectum.

[0042] Please refer to Figure 1 , Figure 2 and Figure 3 This invention provides a rectal ultrasound endoscope, including a first insertion part 1 and a second insertion part 2. The distal end of the first insertion part 1 is provided with an ultrasound transducer 11, and the first insertion part 1 has a first internal channel 12 with openings at both ends. The distal end of the second insertion part 2 is provided with a headstock 21 (e.g., Figure 8 (as shown) and the optical assembly 22, illumination assembly 23 and flow channel 24 (as shown) provided on the head end seat 21. Figure 9 As shown), the second insertion part 2 can be detachably passed through the first built-in channel 12.

[0043] When using this rectal ultrasound endoscope for detection and diagnosis, the first insertion part 1 is inserted into the anus of the subject, and the second insertion part 2 is inserted from the proximal end of the first internal channel 12, reaching the distal end of the first internal channel 12. By controlling the ultrasound transducer 11 to emit ultrasound waves and receive the ultrasound echoes reflected from the human tissue structure, ultrasound images can be obtained. These images can then be used to detect and diagnose the rectum. When a foreign body is detected in the rectum via ultrasound imaging, the flow port 24 of the second insertion part 2 can be used to simultaneously flush and suction the foreign body area. Flushing and suction are performed under the guidance of ultrasound imaging, ensuring accurate positioning and directly achieving precise rectal cleaning, thus providing convenience for clinical diagnosis and treatment. Simultaneously, optical images can be acquired using the optical component 22, thereby further confirming the cleaning effect through the optical images. In addition, since the second insertion part 2 can be detachably passed through the first internal channel 12, that is, the second insertion part 2 can be pulled out from the first internal channel 12 at any time, if the optical image becomes blurred during the diagnosis and treatment process, the second insertion part 2 can be pulled out immediately, and the optical component 22 can be quickly cleaned during the operation by wiping with alcohol or other means. Moreover, by pulling the second insertion part 2 out from the first internal channel 12 of the first insertion part 1, the objective lens in the optical component 22 and the illumination window in the illumination component 23 can be cleaned, which avoids the need to specially set nozzles for cleaning the optical component 22 and the illumination component 23 in the head end seat 21, thus reducing the size of the head end seat 21.

[0044] It should be noted that, in the embodiments of the present invention, the proximal end refers to the end that is far away from the object being observed, and the distal end refers to the end that is close to or inserted into the body of the object being observed.

[0045] Please refer to Figure 1 In order to limit the insertion depth of the second insertion part 2, in some embodiments, the rectal ultrasound endoscope further includes a limiting member 25, which is connected between the first insertion part 1 and the second insertion part 2 to limit the insertion depth of the second insertion part 2 into the first insertion part 1. That is, in this embodiment, by setting the limiting member 25, the insertion depth of the second insertion part 2 is limited so that the second insertion part 2 can stop at the required insertion depth.

[0046] It should be noted that this embodiment does not limit the specific location of the limiting member 25. The limiting member 25 can be located in the first insertion part 1 or the second insertion part 2. Of course, the limiting member 25 can also be a separate structural component, as long as the limiting member 25 can be connected between the first insertion part 1 and the second insertion part 2 to limit the insertion depth of the second insertion part 2 into the first insertion part 1. For example, one approach is to directly install the limiting member 25 when the second insertion part 2 is inserted into the appropriate position, so that the limiting member 25 locks the second insertion part 2 and keeps the position of the second insertion part 2 unchanged.

[0047] In some embodiments, the second insertion part 2 may be provided with a limiting member 25, the outer diameter of which is larger than that of the first internal channel 12, to limit the insertion depth of the second insertion part 2 into the first insertion part 1. That is, the limiting member 25 cannot pass through the first internal channel 12. During the insertion of the second insertion part 2 into the first internal channel 12, when the limiting member 25 reaches the proximal position of the first internal channel 12, the second insertion part 2 cannot continue to be inserted due to the blocking effect of the limiting member 25 and the first internal channel 12, thus stopping the second insertion part 2 at the required insertion depth. This ensures the accuracy of the insertion depth of the second insertion part 2 by utilizing the limiting effect of the limiting member 25.

[0048] Furthermore, in some embodiments, the limiting member 25 is detachably disposed on the first insertion part 1 and / or the second insertion part 2. For example, when the limiting member 25 is disposed on the second insertion part 2, the distal ends of the second insertion part 2 are flush with the distal ends of the first insertion part 1 after the second insertion part 2 is inserted into it; when the limiting member 25 is detached from the second insertion part 2, the distal end of the second insertion part 2 can extend out from the distal end of the first insertion part 1. That is to say, this embodiment uses the limiting function of the limiting member 25 to restrict the second insertion part 2 to a specific position flush with the distal end of the first insertion part 1. In this case, the second insertion part 2 does not protrude from the distal end of the first insertion part 1, making the overall shape of the distal end of the rectal ultrasound endoscope smoother and preventing harm from contact with the human body. Moreover, since the second insertion part 2 does not protrude from the distal end of the first insertion part 1, the radius of the head end of the second insertion part 2 is relatively small, resulting in a relatively small structural size. When the limiting member 25 is removed, the distal end of the second insertion part 2 can extend out from the distal end of the first insertion part 1.

[0049] In addition, to control the distance by which the distal end of the second insertion part 2 extends beyond the distal end of the first insertion part 1, in some embodiments, the number of limiting members 25 is at least two, and all limiting members 25 are sequentially spaced along the length direction of the first insertion part 1 or the second insertion part 2, so as to limit different distances by which the distal end of the second insertion part 2 extends beyond the distal end of the first insertion part 1. For example, at least two limiting members 25 are sequentially spaced along the length direction of the second insertion part 2, and by sequentially removing the limiting members 25 from the direction closest to the distal end of the second insertion part 2, the remaining limiting member 25 closest to the distal end of the second insertion part 2 is used to limit the distance by which the distal end of the second insertion part 2 extends beyond the distal end of the first insertion part 1. In other words, this embodiment, by providing multiple detachable limiting members 25, ensures that when the second insertion part 2 is inserted into the first insertion part 1, the limiting member 25 closest to the distal end of the second insertion part 2 first abuts against the distal end of the first insertion part 1. Under the stopping and limiting action of the limiting member 25 closest to the distal end of the second insertion part 2 and the distal end of the first insertion part 1, the second insertion part 2 remains at the first insertion depth. When it is necessary to increase the insertion depth of the second insertion part 2, the limiting member 25 closest to the distal end of the second insertion part 2 is detached. At this time, due to the adjacent limiting member 25 closest to the distal end of the second insertion part 2, the next closest limiting member 25 to the distal end of the second insertion part 2... The limiting member 25 at the end has a certain interval, so the second insertion part 2 can continue to be inserted. When the second insertion part 2 is inserted to the point where the limiting member 25 closest to the far end of the second insertion part 2 abuts against the far end of the first insertion part 1, the second insertion part 2 stops at the second insertion depth under the stopping and limiting action of the limiting member 25 closest to the far end of the second insertion part 2 and the far end of the first insertion part 1. Similarly, by using different limiting members 25, different insertion depths of the second insertion part 2 are limited, so that the far end of the second insertion part 2 can extend out of the far end of the first insertion part 1 by different distances, so as to better realize optical observation and foreign matter cleaning.

[0050] It should be noted that the above embodiments do not limit the specific implementation of the detachable limiting member 25, as long as the limiting member 25 can be detached relative to the second insertion part 2. For example, in some embodiments, the outer periphery of the second insertion part 2 is provided with a slot, and the limiting member 25 is inserted into the slot. When it is necessary to remove the limiting member 25, it is only necessary to use external force to pull the limiting member 25 out of the slot.

[0051] Of course, in other embodiments, the position of the limiting member 25 along the length direction of the second insertion portion 2 can be adjusted so that the distance by which the distal end of the second insertion portion 2 extends beyond the distal end of the first insertion portion 1 can be limited by positioning the limiting member 25 at different positions. That is, in this embodiment, by adjusting the position of the limiting member 25, the distance by which the distal end of the second insertion portion 2 extends beyond the distal end of the first insertion portion 1 is limited, so as to better realize optical observation and foreign matter cleaning.

[0052] It should be noted that this embodiment does not limit the specific implementation method of adjusting the position of the limiting member 25. For example, in some embodiments, the limiting member 25 is slidably disposed on the outer periphery of the second insertion part 2 along the length direction of the second insertion part 2. By sliding the limiting member 25 relative to the second insertion part 2, the position of the limiting member 25 can be adjusted. Of course, after the limiting member 25 is adjusted to the correct position, a locking structure such as a snap-fit ​​can be used to fix the limiting member 25 relative to the second insertion part 2 to ensure the reliability of the limiting. In other embodiments, the second insertion part 2 has at least two slots along its length direction, and the limiting member 25 can be inserted and removed into any one of the slots. That is, by inserting and removing the limiting member 25, the limiting member 25 can be engaged with different slots to adjust the position of the limiting member 25.

[0053] Furthermore, the above embodiments do not limit the specific shape of the limiting member 25. Considering the reliability of the limiting, in some embodiments, the limiting member 25 is a limiting piece. It can be understood that the limiting piece has a sheet-like structure with a large area, thus providing more reliable limiting.

[0054] Additionally, please continue to refer to Figure 1 Considering the ease with which the second insertion part 2 can be inserted into the first insertion part 1, in some embodiments, the first insertion part 1 is connected to the first operating part 3. The first operating part 3 is provided with a second internal channel that communicates with the first internal channel 12 and passes through the proximal and distal ends of the first operating part 3. The second internal channel is used to allow the second insertion part 2 to pass through. That is, in this embodiment, the second insertion part 2 directly passes through the proximal end of the first operating part 3, and then passes through the first internal channel 12 of the first insertion part 1 to reach the distal end of the first insertion part 1. This solution facilitates the setting of the first internal channel 12 and also facilitates the insertion of the second insertion part 2 into the first insertion part 1. The structure is simple and easy to implement.

[0055] Furthermore, in some embodiments, an ultrasonic cable is provided within the first insertion portion 1. One end of the ultrasonic cable is connected to the ultrasonic transducer 11 for transmitting ultrasonic images acquired by the ultrasonic transducer 11. It is understood that the other end of the ultrasonic cable is used to connect to the ultrasonic host 7 to realize ultrasonic signal transmission between the ultrasonic host 7 and the ultrasonic transducer 11.

[0056] Please refer to Figure 4In some embodiments, the first operation unit 3 is connected to an ultrasonic connection unit 4 for connection with the ultrasonic host 7. The first operation unit 3 is provided with a first smart button 31 for remotely controlling the ultrasonic host 7. That is, this embodiment provides an ultrasonic connection unit 4 to enable ultrasonic signal transmission in a detachable connection manner between the ultrasonic connection unit 4 and the ultrasonic host 7. The ultrasonic connection unit 4 can be an ultrasonic connector for easy and quick plug-and-play connection with the ultrasonic host 7. In addition, the first smart button 31 facilitates remote control of the ultrasonic host 7. For example, the user can customize the adjustment so that the first smart button 31 has functions such as mode switching, gain amplification, and screenshot. It should be noted that this embodiment does not specifically limit the number of first smart buttons 31. The number of first smart buttons 31 can be one or at least two. When the number of first smart buttons 31 is one, that one first smart button 31 can have multiple operation actions.

[0057] In some embodiments, the second insertion part 2 is provided with an image transmission fiber and an illumination fiber. One end of the image transmission fiber is connected to the optical component 22 for transmitting the image signal acquired by the optical component 22; one end of the illumination fiber is connected to the illumination component 23 for providing illumination light.

[0058] In some embodiments, the second insertion part 2 is provided with a water supply channel 28, a suction channel 29, and a main channel 26. The water supply channel 28 and the suction channel 29 are both connected to the main channel 26. The water supply channel 28 is used to supply water to the main channel 26, and the suction channel 29 is used to connect to the suction pump 101. The main channel 26 is connected to the flow port 24. That is, in this embodiment, the water supply channel 28 and the suction channel 29 are connected to the flow port 24 of the head end seat 21 through the same main channel 26. The main channel 26 is used both to supply water to the flow port 24 and to perform suction through the flow port 24.

[0059] Additionally, please refer to Figure 7To facilitate the acquisition of optical images and the cleaning and suction of rectal foreign bodies, in some embodiments, the second insertion part 2 is connected to the second operation part 5. One end of the image transmission optical fiber is connected to the optical group 22 at the distal end of the insertion part 2, and the other end passes through the second insertion part 2, the operation part 5, and the light guide part 6 to connect to the processor end. One end of the illumination optical fiber is connected to the illumination optical fiber 23 at the distal end of the insertion part 2, and the other end passes through the second insertion part 2, the operation part 5, and the light guide part 6 to connect to the light source end. The light guide part 6 is provided with an image interface 61 for connecting to the endoscope processor 81, an illumination interface 62 for connecting to the light source 9, and a suction interface 63 for connecting to the suction pump 101, so as to realize a detachable connection that is easy to insert and remove. The second operation part 5 is provided with a second smart button 51, a suction button 52, and a water delivery interface 53 for remotely controlling the endoscope processor 81. In other words, this embodiment uses an image interface 61, an illumination interface 62, and a suction interface 63 in the light guide section 6. The image interface 61 is connected to the endoscope processor 81, and the illumination interface 62 is connected to the light source 9 to acquire endoscopic optical images. The suction interface 63 is connected to the suction pump 101 to suction foreign objects in the rectum. The image interface 61 is connected to the optical component 22 via an image transmission fiber to transmit the image signals acquired by the optical component 22 to the endoscope processor 81. The illumination interface 62 is connected to the illumination component 23 via an illumination fiber to transmit the illumination light provided by the light source 9 to the distal end of the rectal ultrasound endoscope, providing illumination for the rectal ultrasound endoscope to work within the body cavity of the observed object. The suction interface 63 is connected to the main channel 26 via the suction channel 29 and then to the flow port 24 of the headstock 21 via the main channel 26. The water delivery interface 53 is connected to the main channel 26 via the water delivery channel 28 and then to the flow port 24 of the headstock 21 via the main channel 26. Furthermore, by providing a second smart button 51 to the second operation unit 5, remote control of the endoscope processor 81 is facilitated. For example, the user can customize the adjustment so that the second smart button 51 has functions such as freeze, screenshot, and special light mode switching. It should be noted that this embodiment does not specifically limit the number of second smart buttons 51; the number of second smart buttons 51 can be one or at least two. When the number of second smart buttons 51 is one, that one second smart button 51 can have multiple operation actions. In addition, by providing a suction button 52 to the second operation unit 5, suction control of the rectum is facilitated; by providing a water delivery interface 53 to the second operation unit 5, a water delivery device can be connected to facilitate the cleaning control of rectal foreign bodies. In some embodiments, the light source 9 connected to the light source 9 of the illumination assembly 23 is a cold light source 9.

[0060] It should be noted that the above embodiments do not limit the specific implementation of the operation of the first smart button 31 and the second smart button 51. Those skilled in the art can refer to the implementation schemes of smart buttons in related technologies. Furthermore, the functional implementation of the attraction button 52 is not specifically limited; for example, please refer to… Figure 11 In some embodiments, the second operating unit 5 is provided with a valve body 54, which has a suction inlet 541 and a suction outlet 542. A suction button 52 is used in conjunction with the valve body 54 to switch the state of the valve body 54 by operating the suction button 52, thereby opening or closing the suction inlet 541 and the suction outlet 542. For example, when the suction button 52 is pressed, the valve body 54 is switched to open the suction inlet 541 and the suction outlet 542, so that suction can be achieved at the suction outlet 542.

[0061] For further information, please continue to refer to [link / reference]. Figure 8 In some embodiments, the main channel 26 is a flexible tube, and a metal connector 27 is connected to the proximal end of the main channel 26. The metal connector 27 is connected to the head end seat 21. For example, the proximal end of the main channel 26 is bonded to the metal connector 27, and the metal connector 27 is bonded to the head end seat 21.

[0062] Additionally, please refer to Figure 5 and Figure 6 Considering the specific arrangement of the ultrasonic transducer 11, in some embodiments, the distal end of the first insertion part 1 is provided with a probe housing 13, the ultrasonic transducer 11 is disposed on the outer periphery of the probe housing 13, and the first internal channel 12 penetrates through the probe housing 13. It can be understood that the probe housing 13 is a supporting structure for the ultrasonic transducer 11, and the ultrasonic transducer 11 is disposed on the outer periphery of the probe housing 13, which can effectively avoid the second insertion part 2. The first internal channel 12 penetrating through the probe housing 13 is conducive to allowing the second insertion part 2 to extend out of the probe housing 13 through the first internal channel 12.

[0063] In addition, it is understood that the first insertion part 1 has a wire harness channel inside for the passage of the ultrasonic wire harness.

[0064] In addition, considering the ease of insertion, in some embodiments, both the first insertion part 1 and the first insertion part 2 include a rigid tube, which is easy to insert into the human body and directly contact the rectum.

[0065] Furthermore, the specific radial dimensions of the first built-in channel 12 and the second built-in channel are not limited in the embodiments of the present invention, as long as they can allow the second insertion part 2 to pass through detachably. It can be understood that the inner diameter of the first built-in channel 12 and the second built-in channel is larger than the outer diameter of the second insertion part 2, so that the second insertion part 2 can be inserted into the first built-in channel 12 and the second built-in channel. In addition, the smaller the dimensional difference between the inner diameter of the first built-in channel 12 and the second built-in channel and the outer diameter of the second insertion part 2, the easier it is to improve the stability of the second insertion part 2.

[0066] In addition to the aforementioned rectal ultrasound endoscope, this invention also provides a rectal ultrasound endoscope system including the rectal ultrasound endoscope disclosed in the above embodiments. For the structure of other parts of this rectal ultrasound endoscope system, please refer to related technologies. For example, please refer to... Figure 12 The rectal ultrasound endoscopy system also includes an ultrasound host 7, an endoscope processor 81, a display 82, a cold light source 9, a suction pump 101, and a water bottle assembly 102. The ultrasound host 7 is connected to the ultrasound connection part 4 of the rectal ultrasound endoscope. The endoscope processor 81 is connected to the image interface 61 of the rectal ultrasound endoscope. The display 82 is connected to the endoscope processor 81 to display optical images. The cold light source 9 is connected to the illumination interface 62 of the rectal ultrasound endoscope. The suction pump 101 is connected to the suction interface 63 of the rectal ultrasound endoscope. The water bottle assembly 102 is connected to the water-air interface 64 of the rectal ultrasound endoscope. Furthermore, the working principle of the rectal ultrasound endoscopy system is shown in Figure 13 and can be found in existing technology; it will not be elaborated further here.

[0067] The key point of this embodiment is that it uses the rectal ultrasound endoscope disclosed in any of the above embodiments, which has the same beneficial effects as rectal ultrasound endoscope.

[0068] It should also be noted that, in this specification, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0069] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0070] The foregoing has provided a detailed description of the rectal ultrasound endoscope and rectal ultrasound endoscope system provided by this invention. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of this invention.

Claims

1. A rectal ultrasound endoscope, characterized in that, include: The first insertion part (1) has an ultrasonic transducer (11) at its distal end, and the first insertion part (1) has a first internal channel (12) with openings at both ends. The second insertion part (2) has a head end seat (21) at its distal end and an optical component (22), an illumination component (23) and a flow channel (24) provided on the head end seat (21). The second insertion part (2) is detachably passed through the first built-in channel (12).

2. The rectal ultrasound endoscope according to claim 1, characterized in that, It also includes a limiting member (25) connected between the first insertion part (1) and the second insertion part (2) to limit the insertion depth of the second insertion part (2) into the first insertion part (1).

3. The rectal ultrasound endoscope according to claim 2, characterized in that, The limiting member (25) is detachably provided on the first insertion part (1) and / or the second insertion part (2).

4. The rectal ultrasound endoscope according to claim 3, characterized in that, The number of the limiting members (25) is at least two, and all the limiting members (25) are arranged sequentially at intervals along the length direction of the first insertion part (1) or the second insertion part (2) to limit the distance by which the distal end of the second insertion part (2) extends beyond the distal end of the first insertion part (1).

5. The rectal ultrasound endoscope according to any one of claims 1-4, characterized in that, The first insertion part (1) is connected to the first operation part (3). The first operation part (3) is provided with a second built-in channel that communicates with the first built-in channel (12) and passes through the proximal and distal ends of the first operation part (3) for the second insertion part (2) to pass through.

6. The rectal ultrasound endoscope according to claim 5, characterized in that, An ultrasonic wire bundle is provided in the first insertion part (1), and one end of the ultrasonic wire bundle is connected to the ultrasonic transducer (11) for transmitting the ultrasonic image acquired by the ultrasonic transducer (11).

7. The rectal ultrasound endoscope according to any one of claims 1-4, characterized in that, The second insertion part (2) is provided with an image transmission fiber and an illumination fiber. One end of the image transmission fiber is connected to the optical component (22) for transmitting the image signal collected by the optical component (22); one end of the illumination fiber is connected to the illumination component (23) for providing an illumination light water delivery interface.

8. The rectal ultrasound endoscope according to any one of claims 1-4, characterized in that, The second insertion part (2) is provided with a water delivery channel (28), a suction channel (29) and a main channel (26). The water delivery channel and the suction channel are both connected to the main channel (26). The water delivery channel (28) is used to deliver water to the main channel (26). The suction channel (29) is used to connect to the suction pump (101). The main channel (26) is connected to the flow port (24).

9. The rectal ultrasound endoscope according to any one of claims 1-4, characterized in that, The distal end of the first insertion part (1) is provided with a probe housing (13), the ultrasonic transducer (11) is located on the outer periphery of the probe housing (13), and the first built-in channel (12) passes through the probe housing (13).

10. A rectal ultrasound endoscopic system, characterized in that, Includes the rectal ultrasound endoscope as described in any one of claims 1-9.

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