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 camera mounting hole;Ultrasonic assembly, 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;Camera assembly, it includes optical lens, chip and camera signal cable, optical lens is fixed to camera mounting hole, chip is connected to the proximal end of optical lens;Camera signal cable includes signal line, insulating layer of signal line and shielding layer of insulating layer, signal line is electrically connected with chip;Electric connector, it is wrapped chip and is connected to the distal end of shielding layer, the proximal end of shielding layer is used to connect to the shielding shell of ultrasonic endoscope;Electric connector and ultrasonic assembly are not conducted.The above scheme can improve the electromagnetic shielding effect of chip, and can weaken the influence of static electricity on 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 headpiece, in addition to a camera component for acquiring optical images, also houses an ultrasonic probe for capturing ultrasonic signals. The ultrasonic probe emits ultrasonic waves towards the subject, receives the echo signals, and transmits the received echo signals to the ultrasonic main unit for processing and generating ultrasonic images. Therefore, the ultrasonic endoscope needs to be connected to the light source / processor / integrated unit, as well as 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 of the ultrasonic endoscope (especially the metal parts located at the headpiece), it could potentially pose a hazard to the human body. Therefore, the electrical insulation performance of the ultrasonic endoscope's headpiece 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 headpiece of an ultrasonic endoscope is provided. The headpiece includes: a headpiece base, which is an insulating component, and a camera mounting hole is provided at its distal end; an ultrasonic component, including an ultrasonic probe and an ultrasonic signal cable, the ultrasonic probe being disposed at the distal end of the headpiece base, the ultrasonic signal cable passing through the headpiece base, and the distal end of the ultrasonic signal cable being electrically connected to the ultrasonic probe; a camera component, including an optical lens, a chip, and a camera signal cable, the optical lens being fixed to the camera mounting hole, and the chip being connected to the proximal end of the optical lens; the camera signal cable including a signal line, an insulating layer wrapping the signal line, and a shielding layer wrapping the insulating layer, the signal line being electrically connected to the chip; and an electrical connector, the electrical connector wrapping the chip and connected to the distal end of the shielding layer, the proximal end of the shielding layer being used to connect to the shielding shell of the ultrasonic endoscope; the electrical connector is not conductive to the ultrasonic component.

[0007] For example, the proximal end of the optical lens protrudes from the proximal end of the camera mounting hole, and the electrical connector also covers the proximal end of the optical lens.

[0008] For example, the camera signal cable also includes an insulating sheath that wraps around the shielding layer and exposes the distal end of the shielding layer.

[0009] For example, the electrical connector also encloses the distal end of an insulating sheath.

[0010] For example, the electrical connector includes a conductive adhesive connector.

[0011] For example, the head end also includes an air barrier that encapsulates the conductive adhesive bonding member.

[0012] For example, the head end is also provided with a mounting hole, the distal end of which is connected to the proximal end of the camera mounting hole. The size of the mounting hole is larger than that of the camera mounting hole, so that a stepped surface is formed between the mounting hole and the camera mounting hole. The chip and the electrical connector are located in the mounting hole, and the distal end of the electrical connector abuts against the stepped surface.

[0013] For example, in the lateral direction perpendicular to the near-far direction of the mounting hole, the single-sided distance between the camera assembly and the mounting hole is greater than 0.1 mm.

[0014] For example, the distal end of the optical lens protrudes from the distal end of the camera mounting hole, and the head end also includes a camera seal. The camera seal is connected between the outer edge of the distal end of the camera mounting hole and the side surface of the distal end of the optical lens to seal the gap between the camera mounting hole and the optical lens, and the camera seal wraps the edge between the side surface of the distal end of the optical lens and the end face of the distal end.

[0015] 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.

[0016] Based on the embodiments of this application, when the object being photographed has static electricity and the static electricity forms a magnetic field after contacting the suspended metal of the head end within the head end holder, the electrical connector combined with the shielding layer can form a shield around the chip and signal lines, thereby suppressing the interference of the magnetic field on the chip and signal lines. Furthermore, even if a small amount of static electricity breaks down and enters the vicinity of the chip, the static electricity can be discharged sequentially through the electrical connector and the shielding layer to the shielding shell of the ultrasound endoscope. Thus, the electrical connector, shielding layer, and shielding shell can form a static electricity discharge path, thereby dissipating the static charge and preventing static interference and chip damage. In summary, the head end provided by this utility model embodiment can improve the electromagnetic shielding effect on the chip, thereby reducing the impact of static electricity on the chip, and thus improving image quality and enhancing the safety and stability of clinical diagnosis and treatment. Moreover, since the electrical connector discharges static electricity through the shielding layer of the camera signal cable, the head end does not require additional components, and other components do not require significant modification, resulting in a relatively simple internal structure. This prevents the electrical connector from increasing the size of the head end, which is beneficial for miniaturizing the head end.

[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 schematic diagram of the structure of an ultrasonic endoscope according to an exemplary embodiment of the present invention;

[0021] Figure 2 for Figure 1 A partial structural schematic diagram of an ultrasonic endoscope is shown in the figure.

[0022] Figure 3 for Figure 2 The image shows a partial frontal view of an ultrasonic endoscope.

[0023] 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;

[0024] Figure 5 for Figure 4 A magnified view of a portion of an endoscopic ultrasound system is shown in the image; and

[0025] Figure 6 for Figure 5 The image shows a cross-sectional view of the camera signal cable.

[0026] The above figures include the following reference numerals:

[0027] 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 350, mounting hole; 360, stepped surface; 400, camera assembly; 410, optical lens; 411, side; 412, end face; 420, chip; 500, camera signal cable; 510, signal line; 520, shielding layer; 530, insulation layer; 540, insulating outer sheath; 610, electrical connector; 620, gas barrier; 630, camera seal; 640, illumination seal; 700, ultrasonic probe. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] like Figure 2-4 As shown, the headpiece 210 may include a headpiece base 300, an ultrasound assembly, a camera assembly 400, and an electrical connector 610. The headpiece base 300 may be an insulator. Thus, the headpiece 210 can meet safety requirements. The ultrasound assembly may include an ultrasound probe 700 and an ultrasound signal cable (not shown). The ultrasound probe 700 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 700. 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 700 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 700 can be used to form an ultrasound image, thereby providing information on deep lesions of the subject.

[0033] The headpiece 300 may be provided with a camera mounting hole 310, an illumination mounting hole 320, an instrument channel outlet 330, and a water bladder opening 340. Both the camera mounting hole 310 and the illumination mounting hole 320 can be located at the distal end of the headpiece 300. A camera assembly 400 and an illumination assembly can be respectively installed in the camera mounting hole 310 and the 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, the operating section 120, and the 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, thereby allowing puncture and / or biopsy sampling of the subject. The bend 220 may include a snake skeleton (not shown), a bend outer skin 221, and a bend seal 222. The distal end of the snake skeleton may connect to the proximal end of the head end seat 300. The bend outer skin 221 may cover the snake skeleton. The bend seal 222 may connect between the distal end of the bend outer skin 221 and the proximal end of the head end seat 300. The bend outer skin 221 may be made of a material such as epoxy resin. The bend outer skin 221 and the bend seal 222 serve to provide insulation and sealing.

[0034] The camera assembly 400 may include an optical lens 410, a chip 420, and a camera signal cable 500. The optical lens 410 and chip 420 may be packaged together. 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 it into a camera electrical signal. The chip 420 may 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.

[0035] For example, such as Figure 4-6As shown, the camera signal cable 500 may include a signal line 510, an insulating layer 530, and a shielding layer 520. The signal line 510 can be electrically connected to the chip 420. Specifically, the distal end of the signal line 510 can be connected to the proximal end of the chip 420. The proximal end of the signal line 510 can be used to connect to the light guide 130 for connection with external devices. The insulating layer 530 can wrap around the signal line 510. The shielding layer 520 can wrap around the insulating layer 530. The insulating layer 530 can provide insulation protection for the signal line 510, thereby preventing short circuits between the signal line 510 and the shielding layer 520. For example, the shielding layer 520 can be made of braided metal material. The shielding layer 520 can reduce or eliminate interference to the camera electrical signal transmitted by the signal line 510, thereby improving the transmission quality of the camera electrical signal. The camera signal cable 500 can employ various types of camera signal cables known in the art or that may emerge in the future. As is known in the art, to achieve a shielding effect, the proximal end of the shielding layer 520 can typically 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 object being imaged. 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 operating part 120, and / or the metal inside the insertion part 110.

[0036] Electrical connector 610 may enclose chip 420. Furthermore, electrical connector 610 may be connected to the distal end of shielding layer 520, thereby allowing connection to the shielding shell of the ultrasonic endoscope via shielding layer 520. Exemplarily, electrical connector 610 may enclose the distal end of shielding layer 520. Electrical connector 610 includes, but is not limited to, a metal sheet or metal cover, as long as the aforementioned effects are achieved. Electrical connector 610 may not be electrically connected to the ultrasonic components.

[0037] Thus, in practical applications of the ultrasonic endoscope, when the object being imaged has static electricity, and this static electricity forms a magnetic field upon contact with the suspended metal at the tip of the headstock 300, the electrical connector 610, together with the shielding layer 520, can form a shield around the chip 420 and signal lines 510, thereby suppressing interference from the magnetic field on the chip 420 and signal lines 510. Furthermore, even if a small amount of static electricity breaks down and enters the vicinity of the chip 420, the static electricity can be discharged sequentially through the electrical connector 610 and the shielding layer 520 to the shielding shell of the ultrasonic endoscope. In this way, the electrical connector 610, the shielding layer 520, and the shielding shell can form a static electricity discharge path, thereby dissipating the static charge and preventing electrostatic interference and damage to the chip 420.

[0038] In summary, the head tip 210 provided in this embodiment of the invention can improve the electromagnetic shielding effect on the chip 420, 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. Furthermore, since the electrical connector 610 discharges static electricity through the shielding layer 520 of the camera signal cable 500, the head tip 210 does not require additional components, and other components do not need significant modifications, resulting in a relatively simple internal structure. This prevents the electrical connector 610 from increasing the size of the head tip 210, facilitating its miniaturization. Moreover, the electrical connector 610 is not electrically connected to the ultrasound component, and the charge received on it will not be grounded through the ultrasound component, thus avoiding dangerous accidents.

[0039] During installation, the electrical connector 610 can be first wrapped around the chip 420 and connected to the far end of the shielding layer 520, and then the optical lens 410 can be inserted from the near end of the camera mounting hole 310 to fix it in place. Alternatively, the camera assembly 400 can be installed first, and then the electrical connector 610 can be installed.

[0040] For example, the electrical connector 610 may include a conductive adhesive connector. The conductive adhesive connector can be made of conductive adhesive. During manufacturing, conductive adhesive can be applied / filled around the chip 420 and the shielding layer 520, and the electrical connector 610 is formed after the conductive adhesive cures. Since the headstock 300 is very small, if the electrical connector 610 uses a metal sheet, such a small metal sheet is very difficult to process, resulting in high processing costs; while if the electrical connector 610 uses a metal wire, the metal wire is difficult to completely wrap around the electrical connector 610, resulting in poor electromagnetic shielding of the chip 420. Therefore, the conductive adhesive connector can more easily wrap around the chip 420, and the manufacturing cost is lower. Furthermore, the conductive adhesive connector can be applied to different models of chips 420 and shielding layers 520. Also, the conductive adhesive connector has a certain degree of elasticity, which will not damage the chip 420 when wrapping it.

[0041] For example, such as Figure 4-5As shown, the head end 210 may also include a gas-blocking element 620. The gas-blocking element 620 can enclose the conductive adhesive bonding element. The gas-blocking element 620 can fix the insulating outer sheath 540. The gas-blocking element 620 can be made of materials such as epoxy resin or silicone. After the insertion part 110 is removed from the object being inspected, the insertion part 110 needs to be sterilized to prepare for the next use. Common sterilization gases on the market today include ethylene oxide gas and low-temperature plasma gas. If no protection is provided during sterilization, ethylene oxide gas and low-temperature plasma gas will contact and corrode the conductive adhesive bonding element, easily leading to its failure and consequently a decrease in shielding effectiveness. The gas-blocking element 620 is resistant to sterilization gases, thus preventing ethylene oxide gas or low-temperature plasma gas from contacting the conductive adhesive bonding element, thereby ensuring that the conductive adhesive bonding element will not fail due to the sterilization gas. This results in a longer service life for the conductive adhesive bonding element and higher stability of the ultrasonic endoscope. Furthermore, the gas-blocking element 620 also ensures insulation between the conductive adhesive bonding element and the ultrasonic components.

[0042] For example, such as Figure 4-5 As shown, the proximal end of the optical lens 410 may protrude beyond the proximal end of the camera mounting hole 310. The electrical connector 610 may also enclose the proximal end of the optical lens 410. In this way, the electrical connector 610 can enclose the connection between the optical lens 410 and the chip 420, thereby ensuring that all circuits on the chip 420 are located within the shield formed by the electrical connector 610. Thus, the electrical connector 610 provides better protection for the chip 420. Furthermore, the electrical connector 610 can also improve the connection strength between the optical lens 410 and the chip 420.

[0043] For example, such as Figure 4-6 As shown, the camera signal cable 500 may further include an insulating sheath 540. The insulating sheath 540 may wrap around the shielding layer 520. Furthermore, the insulating sheath 540 may expose the distal end of the shielding layer 520 to ensure that the electrical connector 610 can connect to the distal end of the shielding layer 520. The insulating sheath 540 provides insulation protection for the shielding layer 520, thereby electrically isolating the shielding layer 520 from other components outside the camera signal cable 500.

[0044] For example, such as Figure 4-5 As shown, the electrical connector 610 can also wrap around the distal end of the insulating outer sheath 540. In this way, the electrical connector 610 can wrap around the connection between the shielding layer 520 and the insulating outer sheath 540, thereby increasing the contact area between the electrical connector 610 and the shielding layer 520 and improving the conductivity.

[0045] For example, to prevent short circuits in signal line 510, electrical connector 610 does not contact the exposed metal portion of signal line 510. Specifically, insulating adhesive can be applied to the solder joints connecting signal line 510 and chip 420 to provide insulation protection, thereby preventing electrical connector 610 from penetrating and contacting signal line 510 or chip 420, which could lead to a short circuit.

[0046] For example, such as Figure 4-5 As shown, the head end 300 may also be provided with a mounting hole 350. The distal end of the mounting hole 350 may connect to the proximal end of the camera mounting hole 310. The size of the mounting hole 350 may be larger than that of the camera mounting hole 310, so that a stepped surface 360 ​​can be formed between the mounting hole 350 and the camera mounting hole 310. The chip 420 and the electrical connector 610 may be located within the mounting hole 350. The distal end of the shielding layer 520 may also extend into the mounting hole 350. The mounting hole 350 can provide mounting space for the electrical connector 610. In embodiments where the head end 210 includes a gas barrier 620, the gas barrier 620 may also be located within the mounting hole 350. The distal end of the electrical connector 610 may abut against the stepped surface 360. The aperture of the camera mounting hole 310 may be slightly larger than the outer diameter of the optical lens 410, and the gap between them may be small, thereby enabling the positioning of the camera assembly 400. Based on this, the diameter of the mounting hole 350 can be made larger to accommodate the electrical connector 610 and the air barrier 620.

[0047] For example, such as Figure 4-5 As shown, in the lateral direction perpendicular to the near-far direction of the mounting hole 350, the single-sided distance D between the camera assembly 400 and the mounting hole 350 can be greater than 0.1 mm. For example, the single-sided distance D can be 0.11 mm, 0.12 mm, or 0.13 mm. If this single-sided distance D is too small, there will not be enough space to accommodate the electrical connector 610, or the thickness of the electrical connector 610 will be too small, resulting in a decrease in the electromagnetic shielding effect on the chip 420.

[0048] For example, such as Figure 2-5As shown, 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 630. The camera seal 630 may surround the distal end of the optical lens 410 and the distal end of the camera mounting hole 310. Specifically, the camera seal 630 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 630 can provide a seal, preventing foreign objects from entering the gap between the camera mounting hole 310 and the optical lens 410. Furthermore, the camera seal 630 can also provide a certain aesthetic effect. The camera seal 630 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 630 can prevent the edge from scratching the subject. The camera seal 630 can be made of materials such as epoxy resin. For example, an lighting seal 640 can also surround the lighting mounting hole 320. The structure, connection relationships, and materials of the lighting seal 640 can be referred to those of the camera seal 630, and for simplicity, will not be repeated here.

[0049] It should be noted that in the embodiment shown in the figure, since the camera assembly 400 is generally rectangular, the camera mounting hole 310 can be adapted to be a rectangular hole. In other embodiments, the camera mounting hole 310 can be adapted to the structure of the camera assembly 400.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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: A head end base, wherein the head end base is an insulating component, and a camera mounting hole is provided at the distal end of the head end base; An ultrasound assembly, comprising an ultrasound probe and an ultrasound signal cable, wherein the ultrasound probe is disposed at the distal end of the 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. A camera assembly, comprising an optical lens, a chip, and a camera signal cable, wherein the optical lens is fixed to the camera mounting hole, and the chip is connected to the proximal end of the optical lens; the camera signal cable comprises a signal line, an insulating layer enclosing the signal line, and a shielding layer enclosing the insulating layer, and the signal line is electrically connected to the chip; and An electrical connector is provided, which encloses the chip and is connected to the distal end of the shielding layer, the proximal end of which is used to connect to the shielding shell of the ultrasonic endoscope; the electrical connector is not electrically connected to the ultrasonic component.

2. The tip of the ultrasonic endoscope as described in claim 1, characterized in that, The proximal end of the optical lens protrudes beyond the proximal end of the camera mounting hole, and the electrical connector also covers the proximal end of the optical lens.

3. The tip of the ultrasonic endoscope as described in claim 1, characterized in that, The camera signal cable also includes an insulating outer sheath, which wraps around the shielding layer and exposes the far end of the shielding layer.

4. The tip of the ultrasonic endoscope as described in claim 3, characterized in that, The electrical connector also covers the distal end of the insulating outer sheath.

5. The tip of the ultrasonic endoscope as described in any one of claims 1-4, characterized in that, The electrical bonding component includes a conductive adhesive bonding component.

6. The tip of the ultrasonic endoscope as described in claim 5, characterized in that, The head end also includes an air-blocking element that wraps around the conductive adhesive bonding member.

7. The tip of the ultrasonic endoscope as described in any one of claims 1-4, characterized in that, The head end is also provided with a mounting hole, the distal end of which is connected to the proximal end of the camera mounting hole. The size of the mounting hole is larger than that of the camera mounting hole, so that a stepped surface is formed between the mounting hole and the camera mounting hole. The chip and the electrical connector are located in the mounting hole, and the distal end of the electrical connector abuts against the stepped surface.

8. The tip of the ultrasonic endoscope as described in claim 7, characterized in that, Along the lateral direction perpendicular to the near-far direction of the mounting hole, the single-sided distance between the camera assembly and the mounting hole is greater than 0.1 mm.

9. The tip of the ultrasonic endoscope as described in any one of claims 1-4, characterized in that, The distal end of the optical lens protrudes beyond the distal end of the camera mounting hole. The head end also includes a camera seal, which is connected between the outer edge of the distal end of the camera mounting hole and the side surface of the distal end of the optical lens to seal the gap between the camera mounting hole and the optical lens. The camera seal also wraps around the edge between the side surface of the distal end of the optical lens and the end face of the distal end.

10. An ultrasonic endoscope, characterized in that, Includes the tip of an ultrasonic endoscope as described in any one of claims 1-9.

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