tip portion of an ultrasonic endoscope and an ultrasonic endoscope

Abstract

The embodiment of the utility model provides a kind of head end of ultrasonic endoscope and ultrasonic endoscope.The head end includes: the head end seat of insulation, its distal end is provided with the adjacent setting camera installation hole and unloading installation hole;Camera component, it includes optical lens and chip, optical lens is fixed in camera installation hole, chip is connected to the proximal end of optical lens;Ultrasonic component, it includes ultrasonic probe and ultrasonic signal cable, ultrasonic probe is set to the distal end of head end seat, ultrasonic signal cable is arranged in head end seat, the distal end of ultrasonic signal cable is electrically connected with ultrasonic probe;Unloading conductive component, it is fixed in unloading installation hole, unloading installation hole exposes the distal end of unloading conductive component, the proximal end of unloading conductive component is used to connect to the shield shell of ultrasonic endoscope;Unloading conductive component and ultrasonic component are not conducted.The shield shell of unloading conductive component and ultrasonic endoscope can form the discharge path of static electricity, consume the charge of static electricity, avoid static interference and damage chip.

Description

Technical Field

[0001] This utility model relates to the field of endoscopy technology, specifically to an ultrasonic endoscope and its tip. Background Technology

[0002] Conventional endoscopes (excluding ultrasound endoscopes) typically only need to be connected to the endoscope's light source / processor / integrated unit. To prevent harm to the subject from electrically charged instruments used during endoscopic examinations / treatments, the shielding shell inside the endoscope is connected to the ground plane (i.e., the insulating component) in the endoscope's light source / processor / integrated unit to avoid forming a closed current loop. Therefore, even if the tip of a conventional endoscope is made of metal, it will not pose a danger to the human body.

[0003] An ultrasonic endoscope is an endoscope with ultrasonic diagnostic and therapeutic functions. Its tip, in addition to a camera component for acquiring optical images, also contains an ultrasonic probe for capturing ultrasonic signals. The ultrasonic probe emits ultrasonic waves towards the subject, receives the echo signals from the subject, and transmits the received echo signals to the ultrasonic main unit for processing and generating ultrasonic images. Therefore, in addition to connecting to the light source / processor / integrated unit, the ultrasonic endoscope also needs to connect to the ultrasonic main unit. The ultrasonic main unit typically has a direct, ground-based connection structure. If, during use, the ultrasonic components electrically connected to the ultrasonic main unit become conductive with the metal parts in the ultrasonic endoscope (especially the metal parts located at the tip), it could potentially pose a hazard to the human body. Therefore, the electrical insulation performance of the ultrasonic endoscope's tip is subject to particularly stringent requirements.

[0004] Generally, considering that the ultrasonic signal cable needs to pass through the headpiece to connect with the ultrasonic probe, which will occupy the internal space of the headpiece, in order to reduce the size of the headpiece, the insulation sheath of the distal end of the ultrasonic cable can be stripped, allowing only the wire bundle to pass through the headpiece. In order to avoid this part of the wire bundle from communicating with other components of the ultrasonic endoscope, most existing ultrasonic endoscopes use insulating materials for their headpieces to simultaneously meet safety requirements and reduce the size of the headpiece.

[0005] However, when using an insulated endoscope, if the subject is statically charged, the static electricity is difficult to dissipate properly after contacting the suspended metal at the end of the endoscope, thus creating a magnetic field. This magnetic field can not only interfere with the chip, leading to a decrease in image quality, but may even damage the chip, resulting in no image at all. Therefore, static electricity can seriously affect the effectiveness of clinical diagnosis and treatment. Therefore, there is an urgent need to provide an ultrasound endoscope with improved image anti-interference capabilities. Utility Model Content

[0006] To at least partially address the problems existing in the prior art, according to one aspect of the present invention, a head end of an ultrasonic endoscope is provided. The head end includes: a head base, which is an insulating component, with an adjacently disposed camera mounting hole and a load-bearing mounting hole at its distal end; a camera assembly, comprising an optical lens and a chip, the optical lens being fixed to the camera mounting hole and the chip being connected to the proximal end of the optical lens; an ultrasonic assembly, comprising an ultrasonic probe and an ultrasonic signal cable, the ultrasonic probe being disposed at the distal end of the head base, the ultrasonic signal cable passing through the head base, and the distal end of the ultrasonic signal cable being electrically connected to the ultrasonic probe; and a load-bearing conductive assembly, fixed to the load-bearing mounting hole, the load-bearing mounting hole exposing the distal end of the load-bearing conductive assembly, the proximal end of the load-bearing conductive assembly being used to connect to the shielding shell of the ultrasonic endoscope; wherein the load-bearing conductive assembly and the ultrasonic assembly are not electrically connected.

[0007] For example, the unloading conductive assembly includes a metal head, an unloading cable, and an unloading conductive element. The metal head is fixed to an unloading mounting hole, which exposes the distal end of the metal head. The two ends of the unloading cable are electrically connected to the metal head and the unloading conductive element, respectively. The proximal end of the unloading conductive element is used to connect to the shielding shell.

[0008] For example, the proximal end of the metal head is provided with a mounting hole extending to the distal end, and the side wall of the metal head is provided with an opening extending from the proximal end of the metal head to the distal end, the opening communicating with the mounting hole, the distal end of the unloading cable is installed to the mounting hole through the opening and electrically connected to the mounting hole; and / or the distal end of the unloading conductive element is provided with a mounting groove extending to the proximal end, the groove opening is perpendicular to its extension direction and faces the center of the unloading conductive element, the proximal end of the unloading cable is installed to the mounting groove through the groove opening and electrically connected to the mounting groove.

[0009] For example, the ultrasonic signal cable and the unloading cable are run through different channels in the head end seat.

[0010] For example, the connection between the metal head and the unloading cable is located inside the unloading mounting hole.

[0011] For example, the unloading conductive element includes a distal end, a proximal end, and a connector between the distal end and the proximal end, the connector and the distal end being connected to a head end seat, the proximal end of the unloading cable being connected to the distal end, and the proximal end being used to connect to a shielding shell.

[0012] For example, the proximal end of the head end seat includes an annular connecting portion, the connecting portion including an annular piece abutting against the inner wall of the annular connecting portion, the distal end including a distal piece extending from the distal end of the annular piece, and the proximal end including a proximal piece extending from the proximal end of the annular piece.

[0013] For example, the shielding shell includes a snake skeleton, with the proximal end for electrical connection to the snake skeleton.

[0014] For example, the unloading cable includes a conductor and an insulating sheath, with the two ends of the conductor electrically connected to a metal head and an unloading conductive element, respectively, and the insulating sheath covering the portion between the two ends of the conductor.

[0015] For example, the distal end of the unloading conductive component protrudes from the distal end of the unloading mounting hole, and the head end also includes an unloading seal. The unloading seal is connected between the outer edge of the distal end of the unloading mounting hole and the side surface of the distal end of the unloading conductive component to seal the gap between the unloading mounting hole and the unloading conductive component, and the unloading seal covers the edge between the side surface of the distal end of the unloading conductive component and the end face of the distal end.

[0016] For example, the camera component is located near the outer periphery of the head mount, relative to the unloaded conductive component.

[0017] For example, the camera mounting hole and the unloading mounting hole are isolated from each other.

[0018] According to another aspect of the present invention, an ultrasonic endoscope is also provided. The ultrasonic endoscope includes a head end as described in any of the above ultrasonic endoscopes.

[0019] Based on the embodiments of this application, when the subject is electrostatically charged, the electrostatic charge near the camera assembly is more easily conducted to the unloading conductive component, and then discharged to the shielding shell of the ultrasound endoscope. Thus, the unloading conductive component and the shielding shell of the ultrasound endoscope form a discharge path for electrostatic charge, thereby dissipating the charge and reducing the accumulation of electrostatic charge near the camera assembly, thus preventing electrostatic interference and damage to the camera assembly's chip. In summary, the head end provided by this embodiment can improve the electromagnetic shielding effect and EMC (Electromagnetic Compatibility) protection of the chip, thereby reducing the impact of electrostatic charge on the chip, improving image quality, and enhancing the safety and stability of clinical diagnosis and treatment. Furthermore, since the unloading conductive component can be connected to the floating ground through the shielding shell in the ultrasound endoscope and is not conductive to the ultrasound assembly, even if the distal end of the unloading conductive component is exposed and in contact with the subject, a closed current loop will not be formed, meeting safety requirements.

[0020] 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.

[0021] The advantages and features of this utility model will be described in detail below with reference to the accompanying drawings. Attached Figure Description

[0022] 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,

[0023] Figure 1 This is a schematic diagram of the structure of an ultrasonic endoscope according to an exemplary embodiment of the present invention;

[0024] Figure 2 for Figure 1 A partial structural schematic diagram of an ultrasonic endoscope is shown in the figure.

[0025] Figure 3 for Figure 2 The image shows a partial frontal view of an ultrasonic endoscope.

[0026] Figure 4 for Figure 2 The image shows a partial side view of an ultrasound endoscope, in which some structures are sectionally viewed along the AA direction;

[0027] Figure 5 for Figure 4 The enlarged view of part A shown in the image;

[0028] Figure 6 for Figure 2 The image shows a stereoscopic view of a portion of an ultrasonic endoscope from another angle.

[0029] Figure 7 for Figure 6 The image shows a partial cross-sectional view of an ultrasonic endoscope along the BB direction.

[0030] Figure 8 for Figure 7 The enlarged view of part B shown in the image;

[0031] Figure 9 for Figure 7 A perspective view of the unloading conductive assembly shown in the figure; and

[0032] Figure 10 for Figure 9 The exploded view of the unloading conductive component is shown in the figure.

[0033] The above figures include the following reference numerals:

[0034] 110. Insertion section; 120. Operating section; 130. Light guide section; 140. Light guide hose; 150. Ultrasonic connector; 160. Cable; 210. Head end; 220. Bend; 221. Bend outer sheath; 222. Bend seal; 230. Insertion tube; 300. Head end seat; 310. Camera mounting hole; 311. Outer edge; 320. Illumination mounting hole; 330. Instrument channel outlet; 340. Water bladder opening; 350. Unloading mounting hole; 351. Outer edge; 400. Camera assembly; 410. Optical lens; 411. Side; 4 12. End face; 420. Chip; 500. Camera signal cable; 600. Unloading conductive component; 610. Metal head; 611. Mounting hole; 612. Opening; 613. Side; 614. End face; 620. Unloading cable; 621. Conductor; 622. Insulating sheath; 630. Unloading conductive component; 631. Mounting groove; 632. Distal end; 633. Proximal end; 634. Connecting part; 641. First solder; 642. Second solder; 710. Unloading seal; 720. Camera seal; 730. Illumination seal; 800. Ultrasonic probe. Detailed Implementation

[0035] 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.

[0036] According to one aspect of the present invention, an ultrasonic endoscope is provided. This ultrasonic endoscope can be any endoscope that simultaneously possesses ultrasonic exploration and optical imaging functions, such as, but not limited to, an ultrasonic bronchoscope. According to another aspect of the present invention, a tip of an ultrasonic endoscope is also provided, applicable to any of the aforementioned ultrasonic endoscopes. The ultrasonic endoscope and its tip according to embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0037] like Figure 1As shown, an ultrasound endoscope may include an insertion section 110, an operating section 120, a light guide section 130, a light guide hose 140, an ultrasound connector 150, and a cable 160. The proximal end of the insertion section 110 can be connected to the operating section 120. The operating section 120 is the part for the operator to hold and perform controls, and may include structures such as a lever for controlling the bending of the bending section 220 (described later), a suction button, an instrument channel inlet, and smart buttons. The operating section 120 can be connected to the light guide section 130 via the light guide hose 140. The light guide section 130 can be connected to the light source and processor of the ultrasound endoscope, thereby outputting optical signals to the processor. The light guide section 130 can be connected to the ultrasound connector 150 via the cable 160, and the ultrasound connector 150 can be used to connect to the ultrasound host to output ultrasound electrical signals to the ultrasound host.

[0038] The insertion portion 110 is typically elongated to facilitate insertion into cavities such as the bronchus, upper digestive tract, and lower digestive tract. Specifically, the insertion portion 110 may include a tip 210, a bend 220, and an insertion tube 230. The tip 210 may be located at the distal end of the insertion portion 110. This distal end is typically the end that extends into the subject, bringing it closer to the subject. The proximal end, corresponding to the distal end, is further away from the subject. The bend 220 may connect the proximal end of the tip 210 and the distal end of the insertion tube 230. The bend 220 can cause the tip 210 to swing in different directions. The insertion tube 230 may be connected to the operating unit 120 and may have graduations to allow the operator to determine the insertion depth.

[0039] See Figure 2 or Figure 3 As shown, the headpiece 210 may include a headpiece base 300, an ultrasound assembly, an imaging assembly 400, and a load-bearing conductive assembly 600. The headpiece base 300 may be an insulating component. Thus, the headpiece 210 can meet safety regulations. The ultrasound assembly may include an ultrasound probe 800 and an ultrasound signal cable (not shown). The ultrasound probe 800 may be located at the distal end of the headpiece base 300. The ultrasound cable may be routed through the headpiece base 300. The distal end of the ultrasound signal cable may be electrically connected to the ultrasound probe 800. The proximal end of the ultrasound signal cable may be connected to the light guide 130, and then connected to the ultrasound connector 150 via a cable 160. The ultrasound transducer on the ultrasound probe 800 can emit and receive ultrasound waves, and then convert the acoustic signal into an ultrasound electrical signal. The ultrasound electrical signal can be transmitted to the ultrasound host via the ultrasound connector 150. The ultrasound probe 800 can be used to form an ultrasound image, thereby providing deep lesion information of the subject.

[0040] The headpiece 300 may be provided with a camera mounting hole 310, an illumination mounting hole 320, an instrument channel outlet 330, a water bladder opening 340, and a unloading mounting hole 350. The camera mounting hole 310, illumination mounting hole 320, and unloading mounting hole 350 may all be located at the distal end of the headpiece 300. The camera mounting hole 310 and unloading mounting hole 350 may be arranged adjacent to each other. A camera assembly 400 and an illumination assembly may be respectively installed in the camera mounting hole 310 and illumination mounting hole 320. Light emitted from the light source can enter through the light guide section 130 and pass through the light guide tube 140, operating section 120, and insertion section 110 of the ultrasonic endoscope, and then exit from the illumination assembly via the light guide medium. Light returning from the subject enters the camera assembly 400, and the camera assembly 400 generates and transmits corresponding image signals to the light guide section 130. Instruments such as puncture needles can extend from the instrument channel outlet 330, allowing for puncture and / or biopsy sampling of the subject. The bend 220 may include a snake skeleton (not shown), a bend skin 221, and a bend seal 222. The distal end of the snake skeleton can be connected to the proximal end of the head end seat 300. The bend skin 221 can cover the snake skeleton. The bend seal 222 can be connected between the distal end of the bend skin 221 and the proximal end of the head end seat 300. The bend skin 221 can be made of materials such as epoxy resin. The bend skin 221 and the bend seal 222 serve as insulation and sealing.

[0041] like Figure 4-5As shown, the camera assembly 400 may include an optical lens 410 and a chip 420. The optical lens 410 and the chip 420 may be packaged together. The chip 420 may be connected to the proximal end of the optical lens 410. Specifically, the distal end of the chip 420 may be connected to the proximal end of the optical lens 410. The optical lens 410 may be fixed to the camera mounting hole 310 by any suitable method such as snap-fit ​​or adhesive. The camera mounting hole 310 may expose the optical lens 410. The optical lens 410 may image the subject onto the photosensitive surface of the chip 420. An illumination mounting hole 320 may be located near the camera mounting hole 310. Light passing through the illumination mounting hole 320 may provide illumination for the optical lens 410 to capture images. The chip 420 may receive the optical signal and then convert the optical signal into an image-capturing electrical signal. Chip 420 can employ various types of signals known in the art or likely to emerge in the future, including but not limited to CMOS (Complementary Metal Oxide Semiconductor) chips, CCD (charge-coupled device) chips, etc. The camera assembly 400 may also include a camera signal cable 500. The distal end of the camera signal cable 500 can be connected to the proximal end of chip 420. The proximal end of the camera signal cable 500 can be used to connect to the light guide section 130 for connection to external devices.

[0042] The unloading conductive component 600 can be fixed to the unloading mounting hole 350 by any suitable method such as snap-fit ​​or adhesive. The unloading mounting hole 350 can expose the distal end of the unloading conductive component 600. The proximal end of the unloading conductive component 600 can be connected to the shielding shell of the ultrasonic endoscope. This shielding shell can be connected to the light source, processor, or floating ground of the ultrasonic endoscope via the light guide 130 to avoid damage to the subject. The shielding shell of the ultrasonic endoscope includes, but is not limited to, the shielding shell of the light guide 130, the shielding shell of the operation part 120, and / or the metal inside the insertion part 110. Exemplarily, the unloading conductive component 600 includes, but is not limited to, a metal sheet and / or a metal wire, as long as the above-mentioned effects can be achieved.

[0043] Since both the camera mounting hole 310 and the unloading mounting hole 350 are located at the far end of the headstock 300 and are arranged adjacent to each other, the unloading conductive component 600 is relatively close to the camera component 400. Thus, in practical applications of the ultrasonic endoscope, when the object being imaged has static electricity, the static electricity near the camera component 400 is more easily conducted to the unloading conductive component 600 and then discharged to the shielding shell of the ultrasonic endoscope. In this way, the unloading conductive component 600 and the shielding shell of the ultrasonic endoscope can form a static electricity discharge path, thereby dissipating the static charge, reducing the accumulation of static electricity near the camera component, and thus avoiding electrostatic interference and damage to the chip 420 of the camera component 400. Furthermore, since the unloading conductive component 600 can be connected to the floating ground through the shielding shell in the ultrasonic endoscope and is not conductive with the ultrasonic component, even if the far end of the unloading conductive component 600 is exposed and in contact with the object being imaged, a closed current loop will not be formed, meeting safety requirements.

[0044] In summary, the head end 210 provided in this embodiment of the present invention can improve the electromagnetic shielding effect and EMC (Electromagnetic Compatibility) protection of the chip 420 while meeting safety requirements, thereby reducing the impact of static electricity on the chip 420, and thus improving image quality and enhancing the safety and stability of clinical diagnosis and treatment.

[0045] During installation, the unloading conductive assembly 600 can be inserted into the proximal end of the unloading mounting hole 350, thereby securing it to the unloading mounting hole 350. Since the unloading conductive assembly 600 does not contact the instrument channels or other components inherent within the headstock 300, it does not interfere with these components. The design and installation of the instrument channels and other components do not require adaptive adjustments due to the presence of the unloading conductive assembly 600. Therefore, the design and installation of the ultrasonic endoscope are relatively simple, facilitating manufacturing.

[0046] For example, the camera mounting hole 310 and the unloading mounting hole 350 can be isolated from each other. This arrangement prevents a short circuit from forming between the camera assembly 400 and the unloading conductive assembly 600 in the event of moisture infiltration.

[0047] For example, such as Figure 6-10As shown, the unloading conductive assembly 600 may include a metal head 610, an unloading cable 620, and an unloading conductive element 630. The metal head 610 can be fixed to the unloading mounting hole 350 by any suitable method such as snap-fit ​​or adhesive. The unloading mounting hole 350 can expose the distal end of the metal head 610. The two ends of the unloading cable 620 can be electrically connected to the metal head 610 and the unloading conductive element 630, respectively. Specifically, the distal end of the unloading cable 620 can be connected to the proximal end of the metal head 610. The unloading conductive element 630 can be connected to the head end seat 300 by any suitable method such as adhesive. The proximal end of the unloading cable 620 can be connected to the distal end of the unloading conductive element 630. The proximal end of the unloading conductive element 630 can be used to connect to the shielding shell of the ultrasonic endoscope. In this way, static electricity can be discharged to the shielding shell of the ultrasonic endoscope through the metal head 610, the unloading cable 620, and the unloading conductive element 630 in sequence. The metal head 610 and the unloading conductive component 630 can be fixed to the head end base 300, thus ensuring a better fixation of the unloading conductive component 600 and preventing static electricity from being conducted to other components due to displacement. Furthermore, because the head end base 300 is very small, it is difficult to form a regular space inside. The unloading cable 620 can be threaded through the relatively irregular space within the head end base 300, thus making full use of the space within the head end base 300 and preventing the head end 210 from becoming too large. The head end 210 can still be inserted into narrow cavities such as bronchial tubes. In actual installation, the metal head 610, unloading cable 620, and unloading conductive component 630 can be installed and fixed first, and then the metal head 610 and unloading conductive component 630 can be fixed to the head end base 300 respectively.

[0048] For example, the length of the unloading cable 620 can be slightly longer than the actual installation required. This arrangement facilitates the threading of the unloading cable 620 within the space of the head end bracket 300, thereby reducing installation difficulty.

[0049] For example, the ultrasonic signal cable and the unloading cable 620 can be run through different channels in the head end 300. This arrangement allows the ultrasonic signal cable and the unloading cable 620 to be isolated by the insulated head end 300, ensuring insulation between them.

[0050] For example, the connection between the metal head 610 and the unloading cable 620 can be located within the unloading mounting hole 350. This arrangement avoids exposing the connection, thus ensuring better insulation between the ultrasonic signal cable and the unloading cable 620.

[0051] For example, such as Figure 10As shown, the proximal end of the metal head 610 may be provided with a mounting hole 611 extending to the distal end. An opening 612 may be provided on the sidewall of the metal head 610. The opening 612 extends from the proximal end of the metal head 610 to the distal end. The opening 612 can communicate with the mounting hole 611. Furthermore, the opening 612 allows the distal end of the unloading cable 620 to pass through. Thus, the distal end of the unloading cable 620 can be installed into the mounting hole 611 via the opening 612, thereby achieving electrical connection with the mounting hole 611. This configuration results in a simpler connection structure between the metal head 610 and the unloading cable 620, and reduces installation difficulty. In some embodiments, the distal end of the unloading cable 620 can be connected to the mounting hole 611 by welding. Specifically, the distal end of the unloading cable 620 can be welded to the mounting hole 611 using a first solder 641. After welding is completed, the connection between the far end of the unloading cable 620 and the mounting hole 611 can be ground to make the weld bead smoother.

[0052] For example, such as Figure 10 As shown, the distal end of the unloading conductive element 630 may be provided with a mounting groove 631 extending towards the proximal end. Along the extension direction perpendicular to the mounting groove 631, the opening of the mounting groove 631 may face the center of the unloading conductive element 630. Furthermore, the opening of the mounting groove 631 allows the proximal end of the unloading cable 620 to pass through. Thus, the proximal end of the unloading cable 620 can be installed into the mounting groove 631 via the opening of the mounting groove 631, thereby achieving electrical connection with the mounting groove 631. This configuration results in a simpler connection structure between the unloading conductive element 630 and the unloading cable 620, and reduces installation difficulty. In some embodiments, the proximal end of the unloading cable 620 can be connected to the mounting groove 631 by welding. Specifically, the proximal end of the unloading cable 620 can be welded to the mounting groove 631 using a second solder 642. After welding, the connection between the proximal end of the unloading cable 620 and the mounting groove 631 can be ground to make the weld bead smoother.

[0053] For example, such as Figure 9 As shown in Figure 10, the unloading conductive element 630 may include a distal end 632, a proximal end 633, and a connecting portion 634. The connecting portion 634 may connect between the distal end 632 and the proximal end 633. The distal end 632, the proximal end 633, and the connecting portion 634 may be integrally formed by casting or other methods, or may be spliced ​​by welding or other methods. The connecting portion 634 and the distal end 632 may be connected to the headstock 300. The proximal end of the unloading cable 620 may be connected to the distal end 632. The proximal end 633 may be used to connect to the shielding shell of the ultrasonic endoscope. With this configuration, the structure of the unloading conductive element 630 is relatively simple and easy to manufacture.

[0054] For example, such as Figure 7As shown in Figure 8, the proximal end of the headstock 300 may include an annular connecting portion. The connecting portion 634 may include an annular piece. The annular piece may be attached to the inner wall of the annular connecting portion by means of adhesive bonding or the like. With this configuration, the annular piece only occupies the space of the inner edge of the headstock 300, thereby leaving a relatively regular intermediate space for components such as the instrument channel. Furthermore, the size of the annular piece is relatively large, which is beneficial for dissipating static charge. The distal end 632 may include a distal piece extending from the distal end of the annular piece. The mounting groove 631 may be provided on the inner side of the distal piece. The proximal end 633 may include a proximal piece extending from the proximal end of the annular piece. The wall thickness of the annular piece, the distal piece, and the proximal piece may be the same. Accordingly, a notch may be provided in the headstock 300. The distal piece may also be inserted into the notch by means of plugging or the like. In this way, the notch can prevent the unloading conductive component 600 from rotating through the distal piece, thereby achieving circumferential limiting of the unloading conductive component 600 and ensuring the structural stability of the headstock 210.

[0055] For example, the shielding shell may include a snake skeleton. The proximal end 633 can be used for electrical connection with the snake skeleton. The proximal end 633 is close to the snake skeleton, resulting in a simpler connection structure.

[0056] For example, such as Figure 8-10 As shown, the unloading cable 620 may include a conductor 621 and an insulating sheath 622. The two ends of the conductor 621 can be electrically connected to the metal head 610 and the unloading conductive element 630, respectively. Specifically, the distal end of the conductor 621 can be connected to the proximal end of the metal head 610. The proximal end of the conductor 621 can be connected to the distal end of the unloading conductive element 630. More specifically, the proximal end of the conductor 621 can be connected to the distal end 632 of the unloading conductive element 630. The conductor 621 can be used to discharge static electricity. Static electricity can be discharged to the shielding shell of the ultrasonic endoscope via the metal head 610, the conductor 621, and the unloading conductive element 630 in sequence. The insulating sheath 622 can wrap around the portion between the two ends of the conductor 621. The insulating sheath 622 can provide insulation protection for the conductor 621, thereby preventing static electricity from being conducted to other components through the conductor 621.

[0057] For example, such as Figure 2-5As shown, the distal end of the unloading conductive component 600 may protrude beyond the distal end of the unloading mounting hole 350. The head end 210 may also include an unloading seal 710. The unloading seal 710 may surround the distal end of the unloading conductive component 600 and the distal end of the unloading mounting hole 350. Specifically, the unloading seal 710 may be connected between the outer edge 351 of the distal end of the unloading mounting hole 350 and the side surface 613 of the distal end of the unloading conductive component 600 to seal the gap between the unloading mounting hole 350 and the unloading conductive component 600. Thus, the unloading seal 710 can function as a seal, preventing foreign objects from entering the gap between the unloading mounting hole 350 and the unloading conductive component 600. Furthermore, the unloading seal 710 can also provide a certain aesthetic effect. The unloading seal 710 may also cover the edge between the side surface 613 and the distal end face 614 of the distal end of the unloading conductive component 600. Thus, the unloading seal 710 can prevent the edge from scratching the subject. The unloading seal 710 can be made of materials such as epoxy resin. In embodiments where the unloading conductive assembly 600 includes a metal head 610, an unloading cable 620, and an unloading conductive element 630, the unloading seal 710 can surround the distal end of the metal head 610 and the distal end of the unloading mounting hole 350.

[0058] Exemplarily, the distal end of the optical lens 410 may protrude beyond the distal end of the camera mounting hole 310. The head end 210 may also include a camera seal 720. The camera seal 720 may surround the distal end of the optical lens 410 and the distal end of the camera mounting hole 310. Specifically, the camera seal 720 may be connected between the outer edge 311 of the distal end of the camera mounting hole 310 and the side surface 411 of the distal end of the optical lens 410 to seal the gap between the camera mounting hole 310 and the optical lens 410. Thus, the camera seal 720 can function as a seal, preventing foreign objects from entering the gap between the camera mounting hole 310 and the optical lens 410. Furthermore, the camera seal 720 can also provide a certain aesthetic effect. The camera seal 720 may also cover the edge between the side surface 411 and the distal end face 412 of the distal end of the optical lens 410. Thus, the camera seal 720 can prevent the edge from scratching the subject being photographed.

[0059] For example, a lighting seal 730 may also surround the lighting mounting hole 320. The structure, connection relationship and material of the lighting seal 730 can be referred to the unloading seal 710, and will not be described again for the sake of simplicity.

[0060] For example, such as Figure 4-5As shown, compared to the unloading conductive component 600, the camera component 400 can be positioned closer to the outer periphery of the headstock 300. This arrangement minimizes the obstruction of the camera component 400's field of view by the ultrasonic probe 800, thus facilitating image capture. The distance D between the distal end of the unloading conductive component 600 and the distal end of the camera component 400 can be less than 10 mm. For example, distance D can be 9.5 mm, 9 mm, or 8.5 mm. When distance D is too large, if the static electricity is too small, the static electricity near the camera component 400 may not be conducted to the unloading conductive component 600, resulting in ineffective discharge. At a distance D, the static electricity can be effectively discharged by the unloading conductive component 600, thus preventing electrostatic interference to the camera component 400.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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. A tip of an ultrasonic endoscope, characterized in that, The head end portion includes: The head end seat is an insulating component, and the distal end of the head end seat is provided with adjacent camera mounting holes and unloading mounting holes; A camera assembly, comprising an optical lens and a chip, wherein the optical lens is fixed to the camera mounting hole and the chip is connected to the proximal end of the optical lens; An ultrasound assembly, comprising an ultrasound probe and an ultrasound signal cable, wherein the ultrasound probe is disposed at the distal end of a headstock, the ultrasound signal cable passes through the headstock, and the distal end of the ultrasound signal cable is electrically connected to the ultrasound probe; and An unloading conductive assembly is fixed to the unloading mounting hole, the unloading mounting hole exposing the distal end of the unloading conductive assembly, and the proximal end of the unloading conductive assembly is used to connect to the shielding shell of the ultrasonic endoscope. The unloading conductive component is not conductive to the ultrasonic component.

2. The tip of the ultrasonic endoscope as described in claim 1, characterized in that, The unloading conductive assembly includes a metal head, an unloading cable, and an unloading conductive element. The metal head is fixed to the unloading mounting hole, which exposes the distal end of the metal head. The two ends of the unloading cable are electrically connected to the metal head and the unloading conductive element, respectively. The proximal end of the unloading conductive element is used to connect to the shielding shell.

3. The tip of the ultrasonic endoscope as described in claim 2, characterized in that, The metal head has a mounting hole extending distally at its proximal end, and an opening extending distally from the proximal end of the metal head is provided on its sidewall, the opening connecting to the mounting hole. The distal end of the unloading cable is mounted to the mounting hole via the opening and electrically connected to the mounting hole; and / or The distal end of the unloading conductive element is provided with a mounting groove extending towards the proximal end. The opening of the mounting groove faces the center of the unloading conductive element along a direction perpendicular to its extension. The proximal end of the unloading cable is installed into the mounting groove via the opening and is electrically connected to the mounting groove.

4. The tip of the ultrasonic endoscope as described in claim 2, characterized in that, The ultrasonic signal cable and the unloading cable are threaded through different channels in the head end seat.

5. The tip of the ultrasonic endoscope as described in claim 2, characterized in that, The connection between the metal head and the unloading cable is located inside the unloading mounting hole.

6. The tip of the ultrasonic endoscope as described in claim 2, characterized in that, The unloading conductive element includes a distal end, a proximal end, and a connecting portion connecting the distal end and the proximal end. The connecting portion and the distal end are connected to the head end seat. The proximal end of the unloading cable is connected to the distal end, and the proximal end is used to connect to the shielding shell.

7. The tip of the ultrasonic endoscope as described in claim 6, characterized in that, The proximal end of the headstock includes an annular connecting portion, the connecting portion including an annular piece abutting against the inner wall of the annular connecting portion, the distal end including a distal piece extending from the distal end of the annular piece, and the proximal end including a proximal piece extending from the proximal end of the annular piece.

8. The tip of the ultrasonic endoscope as described in claim 6, characterized in that, The shielding shell includes a snake skeleton, and the proximal end is used for electrical connection with the snake skeleton.

9. The tip of the ultrasonic endoscope as described in claim 2, characterized in that, The unloading cable includes a conductor and an insulating sheath. The two ends of the conductor are electrically connected to the metal head and the unloading conductive element, respectively. The insulating sheath covers the portion between the two ends of the conductor.

10. The tip of the ultrasonic endoscope as described in any one of claims 1-9, characterized in that, The distal end of the unloading conductive component protrudes from the distal end of the unloading mounting hole. The head end also includes an unloading seal, which is connected between the outer edge of the distal end of the unloading mounting hole and the side surface of the distal end of the unloading conductive component to seal the gap between the unloading mounting hole and the unloading conductive component. The unloading seal also wraps around the edge between the side surface of the distal end of the unloading conductive component and the end face of the distal end.

11. The tip of the ultrasonic endoscope as described in any one of claims 1-9, characterized in that, Compared to the unloading conductive component, the camera component is located near the outer periphery of the head end base.

12. The tip of the ultrasonic endoscope as described in any one of claims 1-9, characterized in that, The camera mounting hole and the unloading mounting hole are isolated from each other.

13. An ultrasonic endoscope, characterized in that, Includes the tip of an ultrasonic endoscope as described in any one of claims 1-12.

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