Ultrasonic endoscope and medical device

Abstract

The embodiment of the utility model provides an ultrasonic endoscope and medical equipment. The ultrasonic endoscope is provided with an insertion part, the insertion part comprises a main body, an ultrasonic probe, a connecting piece and an ultrasonic wire harness connected with the ultrasonic probe, the near end of the ultrasonic probe and the far end of the main body are mutually inserted, and the connecting piece penetrates through the inserted part of the near end of the ultrasonic probe and the far end of the main body to fix the ultrasonic probe and the main body. The ultrasonic wire harness is split by the connecting piece to form a first ultrasonic wire harness and a second ultrasonic wire harness, and the first ultrasonic wire harness and the second ultrasonic wire harness penetrate from the far end of the main body. A small space in the main body can be fully utilized, so that a space for penetrating an ultrasonic wire harness does not need to be independently reserved in the main body. Moreover, the connecting piece not only can play a role in fixing the main body and the ultrasonic probe, but also can play a role in splitting the ultrasonic wire harness. Therefore, the structure in the main body and / or the ultrasonic probe is more compact, and the space utilization rate is higher, so that the boundary dimension can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an ultrasonic endoscope and a medical device having the same. Background Technology

[0002] Endoscopic ultrasound (EUS) is an electronic endoscope with ultrasound diagnostic and therapeutic functions. It can diagnose and treat some special diseases that cannot be covered by ordinary endoscopy, surface ultrasound, and CT scans, thus greatly improving the effectiveness of diagnosis and treatment. Therefore, EUS is increasingly used in clinical practice.

[0003] The part of an endoscopic ultrasound (EUS) that enters the body is a long, narrow insertion section. An ultrasound probe is located at the distal end of this section for ultrasound diagnosis of tissues. Taking an EUS applied to the respiratory tract as an example, the ultrasound probe can perform ultrasound diagnosis of tissues below the respiratory membrane to generate ultrasound images. Guided by these images, the user (e.g., a clinician) can extend a puncture needle through the instrument channel to perform a biopsy of internal tissue, thereby obtaining information about deep lesions in the respiratory tract.

[0004] However, for extremely narrow cavities such as the bronchi, existing endoscopic ultrasound systems are limited by the diameter of the insertion section, resulting in poor insertion accuracy and consequently, poor diagnostic and treatment outcomes for these cavities. Therefore, how to further reduce the diameter of the insertion section and improve insertion accuracy is an urgent problem to be solved. Utility Model Content

[0005] To at least partially address the problems existing in the prior art, according to one aspect of the present invention, an ultrasonic endoscope is provided. The ultrasonic endoscope has an insertion portion, which includes a main body, an ultrasonic probe, a connector, and an ultrasonic cable bundle connecting the ultrasonic probe. The proximal end of the ultrasonic probe is inserted into the distal end of the main body. The connector passes through the portion where the proximal end of the ultrasonic probe and the distal end of the main body are inserted to fix the ultrasonic probe and the main body. The ultrasonic cable bundle is split by the connector to form a first ultrasonic cable bundle and a second ultrasonic cable bundle, which are inserted from the distal end of the main body.

[0006] For example, the connector is an insulating component.

[0007] For example, the main body includes a flexible tube and a headstock. The proximal end of the headstock is connected to the distal end of the flexible tube. The proximal end of the ultrasound probe is inserted into the distal end of the headstock. A connector passes through the portion where the proximal end of the ultrasound probe is inserted into the distal end of the headstock to fix the ultrasound probe and the headstock. A first ultrasound cable and a second ultrasound cable pass through the proximal end of the flexible tube. An insulating jacket is provided on the first ultrasound cable and the second ultrasound cable that pass through the flexible tube.

[0008] For example, the proximal end of the ultrasound probe is provided with a plug, and the distal end of the body is provided with a slot. The plug is inserted into the slot, and the plug has a plug cavity that communicates with the slot. The connector includes a pin that connects the plug and the slot.

[0009] For example, the slot has an insertion hole and a disassembly hole on opposite sidewalls, the plug has a through hole through the plug, the pin passes through the through hole, and after the pin passes through the insertion hole and the through hole, it is at least partially confined in the disassembly hole.

[0010] For example, the disassembly hole is a stepped hole.

[0011] For example, the side wall of the slot is provided with an outwardly recessed anti-rotation groove, and the side wall of the plug is provided with an outwardly protruding anti-rotation protrusion. The anti-rotation protrusion is inserted into the anti-rotation groove to limit the relative rotation of the slot and the plug.

[0012] For example, the main body is provided with a first wire harness channel and a second wire harness channel. The intersection of the first wire harness channel and the slot is provided with a first arc-shaped surface with a smooth transition. The intersection of the second wire harness channel and the slot is provided with a second arc-shaped surface with a smooth transition. The first ultrasonic wire harness is supported on the first arc-shaped surface, and the second ultrasonic wire harness is supported on the second arc-shaped surface.

[0013] For example, the first angle between the first tangent direction and the extension direction of the sidewall of the first wire harness channel connected to the first arcuate surface is less than or equal to 45°, and the second angle between the second tangent direction and the extension direction of the sidewall of the second wire harness channel connected to the second arcuate surface is less than or equal to 45°. The first tangent direction is a direction that is tangent to both the first arcuate surface and the connector, and the second tangent direction is a direction that is tangent to both the second arcuate surface and the connector.

[0014] For example, along the proximal direction of the ultrasonic probe, the minimum distance between the end of the ultrasonic cable connected to the ultrasonic probe and the connector is greater than or equal to 0.5 mm.

[0015] According to another aspect of this invention, a medical device is also provided. The medical device includes any of the above-described ultrasonic endoscopes.

[0016] The ultrasound beam can be split into a first ultrasound beam and a second ultrasound beam using a connector, and then the first and second ultrasound beams can naturally pass through the main body respectively. This design makes full use of the limited space within the main body, eliminating the need for a separate space within the main body for the ultrasound beams. Furthermore, the connector not only secures the main body and ultrasound probe but also splits the ultrasound beams, without requiring additional structural components and thus not occupying extra space within the main body and / or the ultrasound probe. This results in a more compact structure within the main body and / or the ultrasound probe, with higher space utilization, allowing for a smaller overall size and easier access to narrower natural body cavities. Consequently, the insertion portion of the ultrasound endoscope is more effective in diagnosing and treating narrow cavities, making it more versatile and significantly improving diagnostic and treatment outcomes.

[0017] This utility model description introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0018] The advantages and features of this utility model will be described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The following drawings, which are incorporated herein by reference as part of this invention, are provided for understanding the invention. The drawings illustrate embodiments of the invention and their descriptions, serving to explain the principles of the invention. In the drawings,

[0020] Figure 1 This is a partial perspective view of the insertion portion of an ultrasonic endoscope according to an exemplary embodiment of the present invention;

[0021] Figure 2 for Figure 1 The image shows a front view of an ultrasound endoscope.

[0022] Figure 3 for Figure 2 The image shows an AA cross-sectional view of an ultrasound endoscope.

[0023] Figure 4 for Figure 2 The image shows a BB cross-sectional view of an ultrasound endoscope.

[0024] Figure 5 for Figure 2 The image shows a CC cross-sectional view of an ultrasonic endoscope.

[0025] Figure 6 for Figure 2The image shows a DD cross-sectional view of an ultrasonic endoscope.

[0026] Figure 7 for Figure 1 An exploded view of an ultrasonic endoscope is shown in the image.

[0027] Figure 8 for Figure 1 A three-dimensional view of the ultrasonic probe is shown in the image.

[0028] Figure 9 for Figure 1 The image shows a side view of an ultrasonic endoscope.

[0029] Figure 10 for Figure 9 The image shows a partial cross-sectional view of the EE of an ultrasound endoscope; and

[0030] Figure 11 for Figure 10 The image shows a partial magnified view of an ultrasound endoscope, in which the first and second ultrasound beams have been removed.

[0031] The above figures include the following reference numerals:

[0032] 100. Main body; 110. Flexible tube; 120. Head end; 130. Slot; 141. Insertion hole; 142. Disassembly hole; 143. Large section; 144. Small section; 151. First sealing plug; 152. Second sealing plug; 160. Anti-rotation groove; 170. Groove; 200. Ultrasonic probe; 210. Probe housing; 220. Ultrasonic transducer; 230. Plug; 231. Plug cavity; 240. Through hole; 250. Anti-rotation protrusion; 300. Instrument Channel; 301, Exit; 320, Clamping Hole; 330, Clamping Connector; 410, First Harness Channel; 420, Second Harness Channel; 440, First Arc-Shaped Surface; 450, Second Arc-Shaped Surface; 500, Connector; 600, Ultrasonic Harness; 610, First Ultrasonic Harness; 611, Flexible Hoses Section; 612, Head End Cap Section; 620, Second Ultrasonic Harness; 630, Insulating Jacket; 710, Camera; 720, Illumination Window; 730, Image Transmission Harness; 740, Optical Fiber. Detailed Implementation

[0033] In the following description, numerous details are provided to enable a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, which may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well-known in the art have not been described in detail.

[0034] According to one aspect of the present invention, an ultrasonic endoscope is provided. The ultrasonic endoscope can be used for diagnosis and treatment of relevant tissues. The ultrasonic endoscope can be applied to any suitable device, including but not limited to medical devices. Therefore, according to another aspect of the present invention, a medical device is also provided. The ultrasonic endoscope and medical device according to embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0035] like Figure 1-10 As shown, an endoscopic ultrasound (EUS) may have an insertion section. The insertion section is typically an elongated structure extending along the X1-X2 direction, allowing it to be inserted into cavities such as the digestive or respiratory tract for diagnosis and treatment of related components. The end of the insertion section facing the X1 direction can be proximal, allowing it to connect with the operating section of the EUS. The end of the insertion section facing the X2 direction can be distal, allowing it to be used for the diagnosis and treatment of related tissues.

[0036] The insertion portion may include a main body 100, an ultrasound probe 200, a connector 500, and an ultrasound cable 600. The proximal end of the ultrasound probe 200 can be interlocked with the distal end of the main body 100. The main body 100 is typically an elongated structure extending along the X1-X2 direction. The X1-X2 direction refers to the proximal and distal directions of the main body 100. In embodiments where the cross-section of the main body 100 perpendicular to the X1-X2 direction is generally circular, the X1-X2 direction is the central axis direction, and the main body 100 can be inserted into natural cavities such as the digestive or respiratory tract of the human body. The ultrasound probe 200 may include a probe housing 210 and an ultrasound transducer 220. The ultrasound transducer 220 may be disposed on the probe housing 210. The ultrasound transducer 220 can emit and receive ultrasound waves to generate ultrasound images, thereby providing information on deep lesions in relevant tissues. The proximal end of the probe housing 210 can be interlocked with the distal end of the main body 100.

[0037] The connector 500 can pass through the proximal end of the ultrasonic probe 200 and the distal end of the body 100 to fix the ultrasonic probe 200 and the body 100 together. The structure of the connector 500 can be arbitrary, including but not limited to pins, snap-fit ​​devices, or magnetic attachments, as long as the above functions can be achieved. An ultrasonic cable 600 can be connected to the ultrasonic probe 200. Specifically, the ultrasonic cable 600 can be connected to the ultrasonic transducer 220. More specifically, the distal end of the ultrasonic cable 600 can be connected to the flexible printed circuit board (FPC) of the ultrasonic transducer 220. After being split by the connector 500, the ultrasonic cable 600 can form a first ultrasonic cable 610 and a second ultrasonic cable 620. The first ultrasonic cable 610 and the second ultrasonic cable 620 can enter from the distal end of the body 100 and exit from the proximal end of the body 100. After the ultrasonic transducer 220 converts the acoustic signal into an electrical signal, the ultrasonic cable 600 can transmit the electrical signal. The first ultrasonic cable bundle 610 may include any number of ultrasonic cable bundles, such as one, two, or more. The second ultrasonic cable bundle 620 may include any number of ultrasonic cable bundles, such as one, two, or more. The connector 500 may be positioned between the ultrasonic cable bundles 600, that is, the ultrasonic cable bundles led from the flexible circuit board are split by the connector 500 to form the first ultrasonic cable bundle 610 and the second ultrasonic cable bundle 620, which respectively extend from both sides of the connector 500 to the main body 100.

[0038] Because the insulating sheath of a single ultrasonic wire bundle is relatively thin, if it is scattered throughout the main body 100, the insulation effect will be poor. Therefore, in the prior art, all ultrasonic wire bundles are directly integrated together and passed through the main body 100. This results in the integrated ultrasonic wire bundle occupying a large space. If the ultrasonic wire bundle is divided into multiple integrated ultrasonic wire bundles using wire harnesses, bundling the ultrasonic wire bundles near the flexible circuit board at the distal end of the ultrasonic wire bundle can easily lead to poor contact between the ultrasonic wire bundle and the flexible circuit board. Furthermore, the wire harnesses will occupy additional internal space, thus still failing to effectively reduce the size of the insertion part. The size mentioned is the dimension perpendicular to the near-far direction (i.e., the X1-X2 direction) of the insertion part. In embodiments where the cross-section of the insertion part perpendicular to the X1-X2 direction is approximately circular, the size is the diameter.

[0039] In this application, the ultrasound beam 600 can be split into a first ultrasound beam 610 and a second ultrasound beam 620 via a connector 500. The first and second ultrasound beams 610 and 620 can then naturally pass through the main body 100 respectively. This arrangement makes full use of the limited space within the main body 100, eliminating the need for a separate space within the main body 100 for the ultrasound beam 600. Furthermore, the connector 500 not only secures the main body 100 and the ultrasound probe 200 but also splits the ultrasound beam 600. Since no additional structural components are required, it does not occupy additional space within the main body 100 and / or the ultrasound probe 200. This results in a more compact structure within the main body 100 and / or the ultrasound probe 200, with higher space utilization, allowing for a smaller overall size and easier access to narrower natural cavities in the human body. Consequently, the insertion portion of the ultrasound endoscope is more effective in diagnosing and treating narrow cavities, enhancing its applicability and significantly improving treatment outcomes.

[0040] Exemplarily, the body 100 may include a flexible tube 110 and a headstock 120. The proximal end of the headstock 120 may be connected to the distal end of the flexible tube 110. The proximal end of the ultrasound probe 200 and the distal end of the headstock 120 may be interlocked. Specifically, the proximal end of the probe housing 210 and the distal end of the headstock 120 may be interlocked. A connector 500 may pass through the proximal end of the ultrasound probe 200 and the distal end of the headstock 120, thereby securing them relative to each other. The ultrasound probe 200 and the headstock 120 may be configured as the tip of an insertion portion.

[0041] An instrument channel 300 may be provided on the headstock 120. The outlet 301 of the instrument channel 300 may be located on the side wall of the headstock 120. Instruments such as puncture needles can extend through the outlet 301 of the instrument channel 300, thereby allowing them to be used to process relevant tissues. Exemplarily, the instrument channel 300 may include a forceps tube, a forceps tube connector 330, and a forceps hole 320 arranged sequentially from its proximal to distal end. The forceps hole 320 may be located within the headstock 120. The distal end of the forceps hole 320 may serve as the outlet 301 of the instrument channel 300. The forceps tube connector 330 may connect between the distal end of the forceps tube and the proximal end of the forceps hole 320, thereby forming a communication between them to create the instrument channel 300.

[0042] By bending the flexible tube 110, the headstock 120 and the ultrasound probe 200 can be oscillated in different directions. Exemplarily, the flexible tube 110 may include a snake-like structure and a protective sheath covering it. An instrument channel 300 can pass through the flexible tube 110 and the headstock 120. The flexible tube 110 and its internal portions can be configured as a bent portion of the insertion section. Exemplarily, as... Figure 10As shown, the first ultrasonic cable 610 may include a flexible tube segment 611 and a headstock segment 612. The flexible tube segment 611 may be located inside the flexible tube 110. A portion of the headstock segment 612 may be located inside the headstock 120. The headstock segment 612 may be connected between the flexible tube segment 611 and the proximal end of the ultrasonic probe 200. The second ultrasonic cable 620 may be similar to the first ultrasonic cable 610, and therefore its structure can be referred to, which will not be described in detail here for the sake of simplicity. Because the snake bone is made of metal, an insulating jacket 630 may be fitted over the portion of the first ultrasonic cable 610 and the second ultrasonic cable 620 that passes through the flexible tube 110 (i.e., the flexible tube segment 611), that is, the insulating jacket 630 is fitted from the connection between the flexible tube 110 and the headstock 120. The insulating jacket 630 can further prevent leakage of the first ultrasonic cable 610 and the second ultrasonic cable 620, thereby achieving a better insulation effect. Since both the outer shell of the ultrasonic probe 200 (i.e., probe shell 210) and the headstock 120 are made of insulating material, their insulation performance is good. The portions of the first ultrasonic cable bundle 610 and the second ultrasonic cable bundle 620 that pass through the ultrasonic probe 200 and the headstock 120 (i.e., headstock section 612) can be in a relatively insulated environment, thus ensuring high safety and eliminating the need for an insulating outer sleeve. This further reduces the space occupied by the ultrasonic cable bundles within the headstock 120 and the ultrasonic probe 200 through a reasonable layout, thereby facilitating the high integration of the insertion part and reducing its size. Furthermore, since no insulating outer sleeve is required, this portion of the ultrasonic cable bundle has a high degree of freedom, facilitating wiring and orderly arrangement, and allowing for smoother bundling via the connector 500 to form the first ultrasonic cable bundle 610 and the second ultrasonic cable bundle 620. Furthermore, the distal ends of the unsplittered ultrasonic beams within the ultrasonic probe 200 can be connected closely to each other to the ultrasonic transducer 220. The flexible circuit board structure of the ultrasonic transducer 220 can be relatively compact, thereby further improving the integration of the insertion part.

[0043] For example, the distal end of the insulating jacket 630 and the distal end of the flexible tube 110 can be filled and secured with adhesive. This adhesive prevents snake-like wires from creeping to portions of the first ultrasonic harness 610 and the second ultrasonic harness 620 that do not require the insulating jacket. Furthermore, the adhesive also supports and secures the first ultrasonic harness 610 and the second ultrasonic harness 620, preventing breakage of portions of the first ultrasonic harness 610 and the second ultrasonic harness 620 that do not require the insulating jacket due to bending.

[0044] For example, the connector 500 can be an insulating component. The connector 500 can be made of insulating materials such as plastic or rubber. With this configuration, the portions of the first ultrasonic cable 610 and the second ultrasonic cable 620 that pass through the ultrasonic probe 200 and the headstock 120 (i.e., the headstock segment 612) as well as the unsplittered ultrasonic cables can be completely insulated.

[0045] For example, along the scanning direction of the ultrasonic transducer 220, the sidewall of the headstock 120 can be provided with a recess 170 that is concave inward toward the central axis. The outlet 301 of the instrument channel 300 can be provided on the bottom wall of the recess 170. A camera 710 and an illumination window 720 can be provided on the sidewall near the proximal end of the recess 170. The camera 710 can be connected to an image transmission cable 730. The image transmission cable 730 can extend from the distal end of the body 100 to the proximal end of the body 100. The camera 710 can be used to image relevant tissues, thereby transmitting image signals through the image transmission cable 730. The illumination window 720 can be connected to an optical fiber 740. The optical fiber 740 can extend from the proximal end of the body 100 to the distal end of the body 100. Illumination light can be transmitted through the optical fiber 740 to the illumination window 720, thereby providing illumination for the camera 710. Ideally, there can be two illumination windows 720, evenly located on both sides of the camera 710. This results in better uniformity of lighting, which in turn improves the quality of the photograph.

[0046] Exemplarily, the body 100 may also include an insertion tube. The distal end of the insertion tube may be connected to the proximal end of the flexible tube 110. The instrument channel 300, the first ultrasound bundle 610, and the second ultrasound bundle 620 may pass through the insertion tube.

[0047] For example, a first seal may be connected between the proximal end of the headstock 120 and the distal end of the hose 110. The first seal includes, but is not limited to, a gasket or a sealing layer formed by an adhesive. With this configuration, the sealing performance between the proximal end of the headstock 120 and the distal end of the hose 110 is better, thereby improving the insulation effect on the first ultrasonic cable 610 and the second ultrasonic cable 620.

[0048] For example, a second seal may be connected between the proximal end of the ultrasonic probe 200 and the distal end of the body 100. Specifically, a second seal may be connected between the proximal end of the probe housing 210 and the distal end of the headstock 120. The second seal includes, but is not limited to, a sealing gasket or a sealing layer formed by an adhesive. With this configuration, the sealing performance between the proximal end of the ultrasonic probe 200 and the distal end of the body 100 is better, thereby improving the insulation effect on the first ultrasonic cable bundle 610 and the second ultrasonic cable bundle 620.

[0049] For example, the operating unit may include a lever for controlling the flexible tube 110, a suction structure, an inlet for the instrument channel 300, and a smart button. The operating unit can be connected between the insertion section and the light guide section. Specifically, the insertion tube can be connected to the operating unit, and the operating unit can be connected to the light guide section via a flexible light guide tube. The light guide section can be connected to the endoscope's light source and processor, thereby outputting optical signals to the endoscope processor. The light guide section can be connected to the ultrasound host via an ultrasound connector, thereby outputting electrical signals transmitted by the first ultrasound bundle 610 and the second ultrasound bundle 620 to the ultrasound host.

[0050] For example, each ultrasonic wire in the first ultrasonic wire bundle 610 and the second ultrasonic wire bundle 620 can be a complete wire bundle without any breaks. That is, whether it is the first ultrasonic wire bundle 610 or the second ultrasonic wire bundle 620, each ultrasonic wire bundle is a complete wire bundle, rather than being spliced ​​together by welding or other methods. Without the influence of breaks, the first ultrasonic wire bundle 610 and the second ultrasonic wire bundle 620 transmit electrical signals with higher quality.

[0051] Exemplarily, a plug 230 may be provided at the proximal end of the ultrasound probe 200. The plug 230 may be located at the proximal end of the probe housing 210. A slot 130 may be provided at the distal end of the body 100. The slot 130 may be located at the distal end of the headstock 120. The plug 230 may be inserted into the slot 130, thereby allowing the plug cavity 231 within the plug 230 to communicate with the slot 130. The connector 500 may include a pin connecting the plug 230 and the slot 130. The ultrasound bundle may be split within the plug cavity 231 by the connector 500 to form a first ultrasound bundle 610 and a second ultrasound bundle 620. The first ultrasound bundle 610 and the second ultrasound bundle 620 may pass through the slot 130. As mentioned earlier, this configuration simplifies the connection between the ultrasonic probe 200 and the main body 100, facilitating disassembly. Furthermore, the connector 500 naturally splits the ultrasonic wire bundle 600 extending from the ultrasonic probe 200, forming a first ultrasonic wire bundle 610 and a second ultrasonic wire bundle 620 within the main body 100. This avoids the increased diameter of the insertion portion caused by an unreasonable layout of the ultrasonic wire bundle 600. In the embodiment shown in the figure, the pin can extend along the YY direction. The YY direction can be perpendicular to the X1-X2 direction.

[0052] Exemplarily, an insertion hole 141 and a disassembly hole 142 may be provided on opposite sidewalls of the slot 130. A through hole 240 may be provided on the plug 230. A pin may pass through the through hole 240. One end of the pin may be aligned with the insertion hole 141. The insertion hole 141 allows the pin to pass through. That is, the size of the insertion hole 141 may be equal to or slightly larger than the size of the pin, allowing the pin to pass through the insertion hole 141. In embodiments where the cross-sections of the insertion hole 141 and the pin perpendicular to the YY direction are both substantially circular, the central axes of the insertion hole 141 and one end of the pin may coincide, and the diameter of the insertion hole 141 may be larger than the diameter of one end of the pin. The other end of the pin may be aligned with the disassembly hole 142. The disassembly hole 142 prevents the pin from passing through. That is, the size of the disassembly hole 142 may be slightly smaller than the size of the other end of the pin, preventing the other end of the pin from passing through the disassembly hole 142. In an embodiment where both the disassembly hole 142 and the pin have substantially circular cross-sections perpendicular to the YY direction, the central axes of the other ends of the disassembly hole 142 and the pin can coincide, and the diameter of the disassembly hole 142 can be smaller than the diameter of the other end of the pin. After the pin passes through the insertion hole 141 and the through hole 240, it can be at least partially confined within the disassembly hole 142. With this configuration, the pin can be inserted from the insertion hole 141 and then through the through hole 240, thereby being at least partially confined within the disassembly hole 142, allowing the plug 230 and the slot 130 to be connected. A person can push the pin from the outside of the disassembly hole 142, thereby ejecting the pin from the insertion hole 141, and thus detaching the plug 230 and the slot 130. This configuration facilitates the installation and removal of the ultrasonic probe 200 and the body 100.

[0053] Exemplarily, one end of the pin can be inserted into the insertion hole 141. Exemplarily, the disassembly hole 142 can be a stepped hole. Specifically, the disassembly hole 142 can include a large segment 143 and a small segment 144. The large segment 143 can face the through hole 240. The small segment 144 can extend from the large segment 143 away from the through hole 240. The other end of the pin can be inserted into the large segment 143. The small segment 144 can prevent the pin from passing through. With this configuration, both ends of the pin can be fixed by the insertion hole 141 and the large segment 143 respectively, thereby improving the connection strength between the ultrasonic probe 200 and the body 100.

[0054] For example, the insertion hole 141 and the removal hole 142 can each be sealed with a sealing plug, such as silicone. Specifically, a first sealing plug 151 can be sealed on the insertion hole 141, and a second sealing plug 152 can be sealed on the removal hole 142. When it is necessary to remove the pin, the sealing plug can be removed first. Using sealing plugs made of insulating material can improve the sealing performance of the insertion part and improve the insulation effect of the first ultrasonic cable 610 and the second ultrasonic cable 620.

[0055] Exemplarily, the sidewall of the slot 130 may be provided with an outwardly recessed anti-rotation groove 160. The sidewall of the plug 230 may be provided with an outwardly protruding anti-rotation protrusion 250. The anti-rotation protrusion 250 can be inserted into the anti-rotation groove 160, thereby serving a positioning function to limit the relative rotation of the slot 130 and the plug 230. In the embodiment shown in the figure, there may be two anti-rotation grooves 160 symmetrically distributed with respect to the pin, and the anti-rotation grooves 160 can be inserted into the anti-rotation protrusions 250 one-to-one.

[0056] For example, a first wire harness channel 410 and a second wire harness channel 420 may be provided within the main body 100. Both the first wire harness channel 410 and the second wire harness channel 420 extend from the proximal end of the main body 100 to the slot 130. The first wire harness channel 410 and the second wire harness channel 420 may be located on opposite sides of the instrument channel 300. The proximal end of the slot 130 may be connected to the distal end of the first wire harness channel 410 and the distal end of the second wire harness channel 420, respectively. The first ultrasound wire harness 610 and the second ultrasound wire harness 620 may pass through the first wire harness channel 410 and the second wire harness channel 420, respectively.

[0057] For example, the intersection of the first wire harness channel 410 and the slot 130 may be provided with a smoothly transitioned first arc-shaped surface 440. The intersection of the second wire harness channel 420 and the slot 130 may be provided with a smoothly transitioned second arc-shaped surface 450. The first ultrasonic wire harness 610 may be supported on the first arc-shaped surface 440. The second ultrasonic wire harness 620 may be supported on the second arc-shaped surface 450. The first arc-shaped surface 440 and the second arc-shaped surface 450 may serve as guides, thereby allowing the first ultrasonic wire harness 610 and the second ultrasonic wire harness 620 to smoothly enter the first wire harness channel 410 and the second wire harness channel 420, respectively.

[0058] For example, such as Figure 10-11As shown, the direction in which the structure is tangent to both the first arcuate surface 440 and the connector 500 is the first tangential direction. The first ultrasonic beam 610 can enter the first beam channel 410 along the first tangential direction. A first angle α can be formed between the first tangential direction and the extending direction of the sidewall of the first beam channel 410 connected to the first arcuate surface 440. The first angle α can be less than or equal to 45°. For example, the first angle α can be 45°, 40°, or 35°. With this configuration, the first ultrasonic beam 610 will not bend excessively, thus allowing it to enter the first beam channel 410 more smoothly. The direction in which the structure is tangent to both the second arcuate surface 450 and the connector 500 is the second tangential direction. The second ultrasonic beam 620 can enter the second beam channel 420 along the second tangential direction. A second angle β can be formed between the second tangential direction and the extending direction of the sidewall of the second beam channel 420 connected to the second arcuate surface 450. The second angle β can be less than or equal to 45°. The second included angle β can be, for example, 45°, 40°, or 35°. With this setting, the second ultrasonic beam 620 will not bend excessively, thus allowing it to enter the second beam channel 420 more smoothly.

[0059] For example, the first ultrasonic cable bundle 610 and the second ultrasonic cable bundle 620 can be supported on both sides of the connector 500. This configuration allows the connector 500 to provide support, thereby increasing the strength of the ultrasonic cable bundles. Furthermore, the insertion section has a more compact structure and higher integration.

[0060] For example, the connector 500 can be positioned closer to the distal end of the slot 130 than to the proximal end of the slot 130. This arrangement allows the connector 500 to be further away from the body 100, thereby creating space for the instrument channel 300 and consequently shortening the length of the insertion portion.

[0061] For example, along the proximal-remote direction (i.e., the X1-X2 direction) of the ultrasonic probe 200, the end of the ultrasonic cable 600 connected to the ultrasonic probe 200 and the connector 500 can have a minimum distance L. The minimum distance L can be greater than or equal to 0.5 mm. The minimum distance can be, for example, 0.5 mm, 0.55 mm, or 0.6 mm. If the minimum distance L is too small, the ultrasonic cable 600 will need to be bent at a large angle, which is not conducive to cable routing. In an embodiment where the cross-section of the ultrasonic probe 200 perpendicular to the X1-X2 direction is generally circular, the proximal-remote direction of the ultrasonic probe 200 is the direction of the central axis.

[0062] In the description of this utility model, it should be understood that the directional terms such as "front", "rear", "up", "down", "left", "right", "horizontal", "vertical", "horizontal", "top", and "bottom" indicate the orientation or positional relationship, which are usually based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0063] For ease of description, relative terms such as "above," "over," "on the upper surface of," and "above" are used here to describe the regional positional relationship of one or more components or features shown in the figures to other components or features. It should be understood that relative terms include not only the orientation of the component as depicted in the figure but also different orientations during use or operation. For example, if the components in the figures are inverted as a whole, "above" or "above other components or features" will include cases where the component is "below" or "under" other components or features. Thus, the exemplary term "above" can include both "above" and "below." Furthermore, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document intends to include all such cases.

[0064] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0065] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0066] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the utility model to the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic endoscope having an insertion section, characterized by comprising: The insertion part includes a main body, an ultrasonic probe, a connector, and an ultrasonic cable bundle connecting the ultrasonic probe. The proximal end of the ultrasonic probe is inserted into the distal end of the main body. The connector passes through the portion where the proximal end of the ultrasonic probe is inserted into the distal end of the main body to fix the ultrasonic probe and the main body. The ultrasonic cable bundle is split by the connector to form a first ultrasonic cable bundle and a second ultrasonic cable bundle. The first ultrasonic cable bundle and the second ultrasonic cable bundle enter from the distal end of the main body.

2. The ultrasonic endoscope of claim 1, wherein The connector is an insulating component.

3. The ultrasonic endoscope of claim 1, wherein, The main body includes a flexible tube and a headstock. The proximal end of the headstock is connected to the distal end of the flexible tube. The proximal end of the ultrasound probe is inserted into the distal end of the headstock. The connector passes through the portion where the proximal end of the ultrasound probe is inserted into the distal end of the headstock to fix the ultrasound probe and the headstock. The first ultrasound cable and the second ultrasound cable extend from the proximal end of the flexible tube. An insulating jacket is fitted over the first ultrasound cable and the second ultrasound cable that pass through the flexible tube.

4. The ultrasonic endoscope of claim 1, wherein, The ultrasound probe has a plug at its proximal end and a slot at its distal end. The plug is inserted into the slot. The plug has a plug cavity that communicates with the slot. The connector includes a pin that connects the plug and the slot.

5. The ultrasonic endoscope of claim 4, wherein, The slot has an insertion hole and a disassembly hole on opposite sidewalls, the plug has a through hole, the pin passes through the through hole, and after passing through the insertion hole and the through hole, the pin is at least partially confined in the disassembly hole.

6. The ultrasonic endoscope of claim 5, wherein, The disassembly hole is a stepped hole.

7. The ultrasonic endoscope of claim 5 wherein, The slot has an outwardly recessed anti-rotation groove on its side wall, and the plug has an outwardly protruding anti-rotation protrusion on its side wall. The anti-rotation protrusion is inserted into the anti-rotation groove to restrict the relative rotation of the slot and the plug.

8. The ultrasonic endoscope of claim 4 wherein, The main body is provided with a first wire harness channel and a second wire harness channel. The intersection of the first wire harness channel and the slot is provided with a first arc-shaped surface with a smooth transition. The intersection of the second wire harness channel and the slot is provided with a second arc-shaped surface with a smooth transition. The first ultrasonic wire harness is supported on the first arc-shaped surface, and the second ultrasonic wire harness is supported on the second arc-shaped surface.

9. The ultrasonic endoscope of claim 8, wherein, The first tangent direction has a first angle with the extension direction of the sidewall of the first wire harness channel connected to the first arc-shaped surface less than or equal to 45°, and the second tangent direction has a second angle with the extension direction of the sidewall of the second wire harness channel connected to the second arc-shaped surface less than or equal to 45°. The first tangent direction is a direction that is tangent to both the first arc-shaped surface and the connector, and the second tangent direction is a direction that is tangent to both the second arc-shaped surface and the connector.

10. The ultrasonic endoscope of claim 1, wherein, Along the near-far direction of the ultrasonic probe, the minimum distance between the end of the ultrasonic cable connected to the ultrasonic probe and the connector is greater than or equal to 0.5 mm.

11. A medical device, characterized by Including an ultrasonic endoscope as described in any one of claims 1-10.

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