WO2023088185A1 - 安装结构、摄像模组、内镜探头及医疗器械 - Google Patents

安装结构、摄像模组、内镜探头及医疗器械 Download PDF

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Publication number
WO2023088185A1
WO2023088185A1 PCT/CN2022/131399 CN2022131399W WO2023088185A1 WO 2023088185 A1 WO2023088185 A1 WO 2023088185A1 CN 2022131399 W CN2022131399 W CN 2022131399W WO 2023088185 A1 WO2023088185 A1 WO 2023088185A1
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WO
WIPO (PCT)
Prior art keywords
elastic
image acquisition
base
camera module
structure according
Prior art date
Application number
PCT/CN2022/131399
Other languages
English (en)
French (fr)
Inventor
何裕源
毛亮亮
孟康
陈柯君
朱国征
何超
Original Assignee
上海微创医疗机器人（集团）股份有限公司
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Publication of WO2023088185A1 publication Critical patent/WO2023088185A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00002—Operational features of endoscopes
    • A61B1/00011—Operational features of endoscopes characterised by signal transmission
    • A61B1/00013—Operational features of endoscopes characterised by signal transmission using optical means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00112—Connection or coupling means
    • A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
    • A61B1/00126—Connectors, fasteners and adapters, e.g. on the endoscope handle optical, e.g. for light supply cables
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion

Definitions

  • the application relates to the technical field of medical devices, in particular to an installation structure, a camera module, an endoscopic probe and a medical device.
  • Minimally invasive surgery is one of the most mature and widely used techniques among the existing minimally invasive medical methods.
  • endoscopic minimally invasive surgery overcomes the shortcomings of large wounds and long recovery period of traditional surgery, greatly reduces the pain of patients, and is favored by patients.
  • minimally invasive surgery based on endoscope has covered many departments, and has become one of the indispensable medical methods in modern medicine and plays a very important role.
  • Endoscopes usually need to install one or more image acquisition chips.
  • the circuit board of the image acquisition chip usually needs to be connected to the lens base with glue, but the amount of glue used is not easy to control. Too little glue will easily fall off, and too much glue will cause Easy to increase module size. In addition, glue overflow will also affect the risk of camera module performance, and when medical devices are repeatedly sterilized, the glue may fail to induce failure.
  • glue it is usually necessary to reserve a glue bonding surface on the lens base to ensure the connection strength, but the reservation of the glue bonding surface increases the outer diameter of the camera module, and the adhesive Glue overflow often occurs in the contact area, and the size of the overflowed glue is uncontrollable, which further increases the outer diameter of the camera module. Therefore, this method is not conducive to the miniaturization of medical devices. Not only that, the glue may have tiny pores, which will have an adverse effect on the pressure resistance and light-shielding performance of medical devices.
  • the purpose of the present application is to provide an installation structure, a camera module, an endoscopic probe and a medical device, so as to solve the problems existing in the installation of the camera module for the existing medical device.
  • the present application provides a mounting structure for a camera module of a medical device, the camera module includes a lens and an image acquisition device located at the proximal end of the lens, the mounting structure Including lens base, elastic parts and pressurized parts;
  • the lens base is used for installing the lens
  • the elastic member is disposed between the lens base and the pressing member;
  • the pressurizing part is detachably connected to the lens base, and applies pressure toward the lens base to the elastic part, so that the elastic part elastically deforms and presses the image acquisition device against the lens base.
  • the installation structure further includes an abutment component, the abutment component is arranged between the lens base and the elastic component, and transmits the elastic force of the elastic component after elastic deformation to the The image acquisition device, so that the image acquisition device abuts against the proximal end of the lens base after receiving the force exerted by the abutment member.
  • the elastic component is connected with the abutting component or the pressing component.
  • the elastic component is rotatably connected to the abutting component or the pressing component.
  • the elastic component includes a base and an elastic arm connected to the base, wherein the base is rotatably connected to the pressing component or the abutting component, and/or, the elastic arm is connected to the The base is rotatably connected.
  • the elastic component includes at least two elastic arms disposed opposite to each other, and one ends of at least two of the elastic arms are connected to the pressing component or the abutting component.
  • one ends of at least two elastic arms intersect to form a converging end, and the converging end is rotatably connected to the pressing member or the abutting member.
  • the converging end has an arc-shaped protrusion
  • the pressing part or the abutting part has an arc-shaped notch matching the arc-shaped protrusion
  • the converging end has a thin-walled structure
  • the thin-walled structure is connected to the pressing member or the abutting member.
  • the other ends of at least two elastic arms are arranged independently of each other and form free ends, or the other end of at least one elastic arm is rotatably connected to another elastic arm.
  • At least a part of the elastic arm has a guiding surface, and the guiding surface is used for enabling the elastic arm to slide relative to the structure to be contacted.
  • the elastic component includes a base and at least two sets of elastic structures oppositely arranged, each set of elastic structures includes at least two elastic arms oppositely arranged, and at least two sets of elastic structures are connected to the base,
  • the base is connected to the abutting member or the pressing member; wherein, among the elastic structures connected to the base, at least one group of the elastic structures is rotatably connected to the base, and/or , the base is rotatably connected to the abutting component or the pressing component.
  • the base has an arc-shaped protrusion
  • the pressing part or the abutting part is provided with an arc-shaped notch matching the arc-shaped protrusion, or the base has a thin-walled structure, so The thin-walled structure is connected to the pressing member or the abutting member.
  • At least one group of the elastic structures is rotatably connected to the base through a thin-walled structure or a rotating shaft.
  • the center of the arc-shaped protrusion is located on a line of symmetry of a group of lenses.
  • the elastic component includes at least two opposite elastic arms, and the maximum distance between the centers of the contact areas formed on each of the elastic arms is at least the center of the two lenses in the camera module. More than 0.5 times the distance.
  • the elastic component is an elastic body made of elastic material.
  • the proximal end of the lens base is provided with a positioning groove for positioning the image acquisition device.
  • the pressurizing component is connected to the lens base through a buckle.
  • the installation structure further includes side cover plates fixedly arranged on two opposite sides of the lens base to seal the periphery of the lens base.
  • the installation structure further includes a sealing tape pasted on the gap of the side cover.
  • the present application also provides a camera module for medical equipment, including a set of lenses, an image acquisition device and any one of the installation structures, the set of lenses is fixedly installed on On the lens base, the proximal end of the lens base abuts against the image acquisition device.
  • the image acquisition device includes an image acquisition circuit board and an image acquisition chip disposed on the image acquisition circuit board, one side of the image acquisition circuit board abuts against the proximal end of the lens base,
  • the number of the image acquisition chips is one or more.
  • the image acquisition circuit board is a T-shaped structure or a U-shaped structure.
  • the present application also provides an endoscopic probe, which is used for medical equipment, including a mount, a rear cover and any one of the camera modules described above, and the rear cover is covered in the installation On the seat and the camera module, a part of the structure of the camera module is installed in the mounting seat.
  • the outer diameter of the endoscopic probe meets the following requirements:
  • c is the diagonal length of the image acquisition chip
  • D is the outer diameter of the endoscopic probe
  • the present application further provides a medical device, including any one of the endoscopic probes.
  • the installation structure, camera module, endoscopic probe and medical device provided by this application have at least one of the following advantages:
  • the installation structure includes an elastic part and a pressurized part.
  • the pressurized part is detachably connected to the lens base. As long as a pre-pressure is applied to the elastic part towards the lens base through the pressurized part, the image can be collected by elastic force.
  • the device is tightly pressed against the lens base, realizing a reliable connection between the image acquisition device and the lens base, avoiding the use of glue, and solving many problems existing in the use of glue; therefore, the application can ensure that the camera module
  • the performance of the group can also reduce the risk of failure when the medical device is sterilized, especially the outer diameter of the camera module can be reduced, it is easy to realize the miniaturization of the medical device, and the pressure resistance of the camera module can be ensured and shading performance, which reduces the difficulty of manufacturing;
  • the installation structure can also realize the rapid installation of the image acquisition device and the lens base, and can also use the elastic parts to realize the tolerance gap compensation in the installation direction, and always ensure the uniformity of pressure , thereby improving the image quality;
  • the installation structure further includes an abutment component, which is arranged between the lens base and the elastic component, and is used to transfer the elastic force of the elastically deformed elastic component to the image acquisition device, so that the image acquisition device After receiving the force exerted by the abutment part, it abuts against the proximal end of the lens base; this configuration increases the contact area, increases the pre-pressure, and reduces the local stress of the image acquisition chip, further ensuring image quality;
  • the elastic part is rotatably connected to one of the abutting part and the pressurizing part, which can realize the self-balancing of the pre-pressure of the image acquisition chip, avoid local stress on the image acquisition chip, and avoid damage to the image acquisition chip caused by local stress. Uneven deformation, so as to ensure image quality;
  • the elastic component includes at least two opposite elastic arms, and the maximum distance between the centers of the contact areas formed on each of the elastic arms is at least 0.5 times the center distance of the two lenses in the camera module, In this way, the elastic component has a larger space for deformation compensation, and the range of pre-pressure adjustment is wider, which can be applied to the scene of one or more image acquisition chips;
  • the outer diameter of the endoscopic probe can be optimized according to the number and size of the image acquisition chips, so that the outer diameter of the endoscopic probe is the smallest, which is more conducive to the miniaturization of medical devices; for example, when the number of image acquisition chips is one , the outer diameter D of the endoscopic probe satisfies: c ⁇ D ⁇ 1.3c, or when the number of image acquisition chips is multiple, such as 2, 3 or 4, the outer diameter D of the endoscopic probe satisfies: 1.7c ⁇ D ⁇ 2.3c.
  • Fig. 1 is a schematic diagram of a medical device with an endoscopic probe in a preferred embodiment of the present application
  • Fig. 2 is a schematic diagram of the packaging structure of the endoscopic probe of the preferred embodiment of the present application
  • Fig. 3 is a schematic diagram of an exploded structure of an endoscopic probe in a preferred embodiment of the present application
  • Fig. 4 is a schematic structural view of a camera module in a preferred embodiment of the present application.
  • Fig. 5 is an exploded schematic view of the camera module shown in Fig. 4;
  • Fig. 6 is a schematic cross-sectional view of the camera module shown in Fig. 4;
  • Fig. 7 is a schematic diagram of an exploded cross-section of the camera module shown in Fig. 5;
  • Fig. 8 is a schematic structural view of the elastic part of the pressurizing part in the preferred embodiment of the present application.
  • FIG. 9 is a schematic structural view of a lens base in a preferred embodiment of the present application.
  • Fig. 10 is a schematic diagram of the deformation of the front section of the camera module of the preferred embodiment of the present application.
  • Fig. 11 is a schematic diagram of the layout of the image acquisition chip relative to the tube body in the preferred embodiment of the present application.
  • Fig. 12 is a schematic cross-sectional view of the camera module according to Embodiment 1 of the present application, in which the elastic component is rotatably connected to the pressurizing component;
  • Fig. 13 is an exploded cross-sectional schematic view of the camera module shown in Fig. 12;
  • Fig. 14 is a schematic front sectional view of the camera module shown in Fig. 12, wherein the elastic member can be rotated from the state of figure (b) to the state of figure (a);
  • Fig. 15 is a schematic front sectional view of another camera module according to Embodiment 1 of the present application, in which the elastic component is rotatably connected to the pressurizing component through a thin-walled structure;
  • Fig. 16 is a schematic front sectional view of another camera module according to Embodiment 1 of the present application, wherein the elastic arm in the elastic component itself forms a thin-walled hinge point;
  • Fig. 17 is an exploded cross-sectional schematic view of another camera module according to Embodiment 1 of the present application, wherein the elastic component includes two sets of elastic structures, and the two sets of elastic structures are hinged on the base through rotating shafts;
  • Fig. 18 is a schematic front sectional view of another camera module shown in Fig. 17, wherein the elastic member can be rotated from the state of figure (b) to the state of figure (a);
  • Fig. 19 is a schematic front sectional view of another camera module according to Embodiment 1 of the present application, wherein the elastic component includes two sets of elastic structures, and the two sets of elastic structures are hinged on the base through a thin-walled structure;
  • Fig. 20 is a schematic front sectional view of the camera module according to Embodiment 2 of the present application, in which the elastic component is connected to the abutting component;
  • Fig. 21 is a schematic front sectional view of another camera module according to Embodiment 2 of the present application, in which the elastic member is rotatably connected to the abutment member;
  • Fig. 22 is a schematic front sectional view of the camera module according to Embodiment 3 of the present application, wherein the elastic component is an elastic body;
  • Fig. 23 is a schematic cross-sectional view of a camera module in a preferred embodiment of the present application, wherein the image acquisition circuit board is a T-shaped structure;
  • FIG. 24 is an exploded schematic diagram of the camera module shown in FIG. 23 .
  • each embodiment of the content described below has one or more technical features, but this does not mean that the applicant must implement all the technical features in any embodiment at the same time, or can only implement different embodiments separately. Some or all of the technical features. In other words, on the premise that the implementation is possible, those skilled in the art can selectively implement some or all of the technical features in any embodiment according to the disclosure of the application and depending on the design specifications or implementation requirements, or Selectively implement a combination of some or all of the technical features in multiple embodiments, thereby increasing the flexibility of implementing the present application.
  • the singular forms “a”, “an” and “the” include plural objects, and the plural form “a plurality” includes two or more objects, unless the content clearly states otherwise.
  • the term “or” is generally used in the sense including “and/or”, unless the content clearly indicates otherwise, and the terms “install”, “connect” and “connect” should be To understand it in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two elements or the interaction relationship between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.
  • proximal refers to the relative orientation, relative position, direction of elements or actions relative to each other from the perspective of a doctor using the medical device, although “proximal”, “distal ” is not limiting, but “proximal” generally refers to the end of the medical device that is closest to the practitioner during normal operation, and “distal” generally refers to the end that enters the patient first.
  • the embodiment of the present application provides a medical device, including an endoscopic probe 1 located at the distal end.
  • the medical device also includes a tubular body 2 and a handle 3 , the endoscopic probe 1 is connected to the distal end of the tubular body 2 , and the proximal end of the tubular body 2 is connected to the handle 3 .
  • the external wire passes through the tube body 2 and the handle 3 and is connected with the endoscopic probe 1 .
  • the external wires are, for example, wires for supplying current, wires for transmitting signals, and the like.
  • the endoscopic probe 1 includes a camera module 11 , a mount 12 and a rear cover 13 .
  • the rear cover 13 is overlaid on the mounting base 12 and the camera module 11 .
  • a part of the structure of the camera module 11 is installed in the mounting seat 12 .
  • the rear cover 13 circumferentially seals the mounting seat 12 and the camera module 11 .
  • the back cover 13 is fixedly connected with the mounting seat 12, for example, glued together.
  • the mounting base 12 and the rear cover 13 can be integrally formed, or can be separately formed and then assembled.
  • the mounting base 12 and the rear cover 13 are manufactured separately and then assembled, which is beneficial to reduce the processing difficulty of the mounting base 12 and reduce the size of the mounting base 12 .
  • the mounting seat 12 generally includes a plurality of axially penetrating mounting grooves, the multiple mounting grooves are independent of each other and do not interfere with each other, and the camera module 11 is installed in the corresponding mounting grooves.
  • the endoscopic probe 1 may also include an illumination module 14 fixedly installed on the mounting base 12 , such as installed in a corresponding mounting groove of the mounting base 12 .
  • the lighting module 14 and the camera module 11 are installed in different installation grooves of the mounting base 12 respectively, and the two do not interfere with each other.
  • the lighting module 14 can provide lighting for the image captured by the camera module 11 .
  • the lighting module 14 includes two lighting lamps (not labeled), and the two lighting lamps are symmetrically installed on the mounting base 12 .
  • the lighting mode of the lighting module 14 is generally a cold light source combined with a light guide beam, or LED lighting.
  • the embodiment of the present application also provides a mounting structure, which is suitable for the camera module 11 and can be used without glue Under the circumstances, the image acquisition device and the lens base can be tightly and reliably connected, thereby solving some problems existing in the existing use of glue to bond the lens base and the image acquisition device.
  • the camera module 11 includes an installation structure, an image acquisition device 101 and a group of lenses 102, the image acquisition device 101 is located at the near end of a group of lenses 102, and the installation structure includes a lens base 103 , an elastic component 104 and a pressing component 105 .
  • the set of lenses 102 is fixedly installed on the lens base 103 , and the set of lenses 102 is usually bonded and fixed on the lens base 103 by glue, but not limited to the way of glue bonding.
  • the proximal end of the lens base 103 abuts against the image capture device 101 .
  • "abutting" means that the installation plane at the proximal end of the lens base 103 is closely and reliably attached to the image capture device 101 to ensure image quality.
  • the elastic member 104 is arranged between the lens base 103 and the pressing member 105; pressure to make the elastic member 104 elastically deform; the elastically deformed elastic member 104 presses the image capture device 101 against the lens base 103 , so that the image capture device 101 and the lens base 103 fit closely. Therefore, the elastic member 104 is deformed under pressure during installation, thereby realizing the installation of the image acquisition device 101 .
  • the image capture device 101 cooperates with a set of lenses 102 to capture images of a designated area.
  • the set of lenses 102 presents the optical image of the observed object on the image acquisition device 101, and the image acquisition device 101 collects the image information of the object, and performs corresponding processing on the image information and transmits it.
  • the image acquisition device 101 includes an image acquisition circuit board 1011 and an image acquisition chip 1012 arranged on the image acquisition circuit board 1011; the image acquisition chip 1012 collects image information of a designated area, and the image acquisition circuit board 1011 performs an image acquisition process on the image information. Process and transmit accordingly.
  • the number of image acquisition chips 1012 may be one or more, and a plurality refers to at least two.
  • the shape of the image acquisition circuit board 1011 has no special requirements, for example, it may be a U-shaped structure as shown in FIGS. 4 to 21 , or a T-shaped structure as shown in FIGS. 23 and 24 , or other shapes.
  • the shape of the image acquisition chip 1012 is also not limited, including but not limited to the rectangle shown in each figure.
  • the image acquisition device 101 can be reliably pressed against the proximal end of the lens base 103 by elastic force. , to achieve a reliable and tight installation connection between the image acquisition device 101 and the lens base 103, thereby avoiding the use of glue, and solving many problems caused by the conventional use of glue.
  • the installation structure provided by this application is used to install the image acquisition device 101 and a set of lenses 102, and after installing these components, the performance of the camera module 11 can be ensured, and the camera module 11 can also be reduced when the medical equipment is sterilized.
  • the risk of failure of the module 11, in particular, can also reduce the outer diameter of the camera module 11, thereby reducing the outer diameter of the endoscopic probe 1, which is beneficial to the miniaturization of medical devices.
  • the installation structure can also ensure the pressure resistance and light-shielding performance of the camera module 11 , and reduce manufacturing difficulty.
  • the installation structure can also realize quick installation between the image acquisition device 101 and the lens base 103 , which reduces installation difficulty and simplifies the installation process.
  • the elastic component 104 can be used to realize tolerance gap compensation in the installation direction, so that the pressure on the image acquisition chip 1012 can be kept uniform, thereby improving the image quality.
  • the pressurizing component 105 is connected to the lens base 103 through a buckle.
  • the structure is simple, the assembly and disassembly are convenient, and it is not easy to increase the outer diameter of the camera module 11 .
  • the pressurizing member 105 has a hook 1051
  • the lens base 103 has a slot 1031
  • the hook 1051 is snap-connected with the slot 1031, so that the lens A fixed connection between the base 103 and the pressing part 105 .
  • the lens base 103 can be screwed to the pressurizing part 105 .
  • the proximal end of the lens base 103 may be provided with a positioning groove 1032 for positioning the image capture device 101 .
  • the number of positioning grooves 1032 is determined according to the number of image acquisition chips 1012 , one positioning groove 1032 positions one image acquisition chip 1012 .
  • the shape of the positioning groove 1032 preferably matches the shape of the image acquisition chip 1012 .
  • the mounting structure further includes an abutment component 106, the abutment component 106 is arranged between the lens base 103 and the elastic component 104, and transmits the elastic force of the elastically deformed elastic component 104 to The image capture device 101 , so that the image capture device 101 is closely attached to the proximal end of the lens base 103 after receiving the pressure exerted by the abutting component 106 .
  • the abutting member 106 may be a flat block structure with a large contact area. Therefore, the abutment component 106 can provide a larger contact area, increase the pre-pressure, and reduce the local stress of the image acquisition chip 1012, further ensuring image quality.
  • the abutting part 106 and the pressing part 105 have a central hole (not marked) that allows the image acquisition circuit board 1011 to pass through, and the image acquisition circuit board can be placed 1011 is designed as a T-shaped structure, so that the proximal end of the image acquisition circuit board 1011 passes through the abutting part 106 and the pressing part 105 in sequence.
  • the image acquisition circuit board 1011 passes through the abutting part 106 and the pressing part 105 in sequence.
  • the abutting part 106 and the pressing part 105 are not provided with a central hole, but the abutting part 106 and the pressing part 105 are arranged between the image acquisition circuit boards 1011, At this time, the image acquisition circuit board 1011 can be designed as a U-shaped structure, and the abutting part 106 and the pressing part 105 are arranged in the U-shaped groove of the image acquisition circuit board 1011 .
  • the installation structure further includes side cover plates 107 fixedly arranged on two opposite sides of the lens base 103 to seal the periphery of the lens base 103 to ensure light-shielding performance and pressure-resistant performance.
  • the installation structure also includes a sealing tape 108 pasted on the side cover 107 .
  • the sealing tape 108 mainly covers the gap on the side cover 107 , and does not necessarily need to cover the entire side cover 107 . Because there may be a gap at the connection position between the side cover plate 107 and the lens base 103 , resulting in light transmission, for this reason a sealing tape 108 is required to seal the light transmission part.
  • the side cover 107 is an insulator, and both the sealing tape and the side cover 107 are made of opaque materials.
  • the elastic component 104 is connected to the pressurizing component 105 , as shown in FIGS. 5 to 19 .
  • the elastic component 104 and the pressurizing component 105 can be fabricated as one piece or assembled separately.
  • the "integrated molding” here refers to the integral molding to obtain the pressurizing part 105 with its own elastic part 104 or the elastic part 104 with its own pressurized part 105 during the processing.
  • “separate molding production” refers to manufacturing the elastic part 104 and the pressing part 105 separately during the processing, and then connecting the elastic part 104 and the pressing part 105 together in a certain way.
  • the elastic component 104 is connected to the abutting component 106 , as shown in FIG. 20 and FIG. 21 .
  • the elastic component 104 and the abutting component 106 can be fabricated as one piece or assembled separately.
  • the "integrated molding” here refers to the integral molding to obtain the abutment part 106 with its own elastic part 104 or the elastic part 104 with its own abutment part 106 during the processing.
  • “separate molding production” refers to manufacturing the elastic component 104 and the abutting component 106 separately during the processing, and then connecting the elastic component 104 and the abutting component 106 together in a certain way.
  • the elastic component 104 is connected to the pressing component 105 , and the elastic component 104 and the pressing component 105 may be integrally formed, such as integrally formed by mold processing.
  • the elastic member 104 specifically includes at least two elastic arms 1041 oppositely disposed, one end of the at least two elastic arms 1041 is connected to the pressing member 105, and the other end is a free end.
  • the free ends of at least two elastic arms 1041 are used to directly contact the back of the image capture circuit board 1011 , or directly contact the abutment component 106 .
  • Each elastic arm 1041 can produce elastic deformation to compensate the tolerance gap in the installation direction.
  • the elastic arm 1041 is provided with a guide surface 1042, and the guide surface 1042 is used to enable the elastic arm 1041 to be relatively in contact with the structure of the elastic arm 1041 (such as the abutting member 106 or the pressing member 105 or the image acquisition circuit The plate 1011) slides more smoothly, reducing the resistance of the elastic compensation.
  • the at least two elastic arms 1041 are preferably distributed symmetrically with respect to the line of symmetry on which the group of lenses 102 is arranged. Therefore, during installation, the elastic arm 1041 can be deformed to compensate for the tolerance gap between the image acquisition device 101 and the lens base 103 in the installation direction, so that the image acquisition circuit board 1011 is well attached to the lens base 103. on the mounting surface at the end.
  • FIG. 10 in figure (a) of FIG. 10 , two elastic arms 1041 are in contact with the abutment member 106 and produce elastic deformation, and the elastic arms 1041 can be adjusted at any time to adapt to the gap in the installation direction, for example, in In (b) of Figure 10, the elastic arm 1041 can slide from the position C1 in the figure (a) to the position C2 in the figure (b) (the dotted line is the elastic arm 1041 after sliding), so as to automatically balance the preload and effectively ensure the image quality.
  • d is the vertical distance from the fixed end of the elastic member 104 to the structure in contact with the elastic member 104
  • s is the vertical distance from the fixed end of the elastic member 104 to the furthest point on the free end.
  • the distance from the front plane of the pressing member 105 to the rear plane of the abutting member 106 is d
  • the distance from the front plane of the pressing member 104 to the farthest point in front of the elastic arm 1041 is s.
  • the maximum distance q between the centers of the contact areas formed on each elastic arm 1041 is preferably at least 0.5 times the center distance p of the two lenses. That is to say, the distance between the centers of two lenses in a group of lenses 102 is p, and the maximum span between the elastic arm 1041 and the abutment component 106 or the contact area of the circuit board is q, satisfying q>0.5p.
  • the elastic component 104 has a larger space for deformation compensation, and the range of pre-pressure adjustment is wider, which can be applicable to the scene of one or more image acquisition chips 1012 .
  • the application also optimizes the outer diameter of the endoscopic probe 1, that is, optimizes the size of the tube body 2, and the outer diameter of the tube body 2 is usually the same as the outer diameter of the endoscopic probe 1 .
  • the outer diameter of the endoscopic probe 1 meets the following requirements:
  • c is the diagonal length of the image acquisition chip
  • D is the outer diameter of the endoscopic probe
  • the above relational expression "1.7c ⁇ D ⁇ 2.3c" is also applicable to the situation of three or four or more image acquisition chips 1012 .
  • the connecting lines between the centers of the three image acquisition chips 1012 are triangular; for example, when the number of image acquisition chips 1012 is 4, on the end projection, 4
  • the connecting lines between the centers of the image acquisition chips 1012 are quadrilateral, such as rectangles.
  • the shape of the image acquisition chip 1012 includes but is not limited to a rectangle.
  • the above dimension c should be understood as the length of the line between the farthest two points on the cross section of the image acquisition chip 1012 .
  • the elastic member 104 is rotatably connected to the abutment member 106 or the pressing member 105, so as to realize self-balancing of the pre-pressure of multiple image acquisition chips 1012, and avoid local stress on a single image acquisition chip 1012 , to avoid uneven deformation of the image acquisition chip 1012 caused by local stress, thereby improving image quality.
  • the elastic member 104 when the elastic member 104 is fully rotatable, then when there is a large difference in the positive pressure of the elastic member 104 to a plurality of image acquisition chips 1012, the elastic member 104 can be relative to the pressing member 105 connected thereto or resist The connecting part 106 rotates, so as to achieve the effect of automatic balance of pre-pressure and ensure the quality of image acquisition.
  • the elastic member 104 itself can also rotate, such as the elastic arms can be rotated relative to each other, or the elastic arm can rotate relative to the base connected thereto, then, when the elastic member 104 gives the multiple image acquisition chips 1012 positive
  • the single elastic arm 1041 can also rotate, thereby further achieving the effect of automatic balance of pre-pressure and ensuring the quality of image acquisition.
  • the elastic member 104 is connected to the pressing member 105, one end of the elastic member 104 is connected to the pressing member 105 to form a fixed end, and the other end of the elastic member 104 is a free end to contact with the abutment member 106 or directly contact the image The backside contact of the acquisition circuit board 1011.
  • the elastic component 104 is connected to the pressurizing component 105 , and the two can be formed separately.
  • one ends of at least two elastic arms 1041 intersect to form a converging end 1043 , and the converging end 1043 is rotatably connected to the pressing member 105 .
  • the converging end 1043 has an arc-shaped protrusion
  • the pressing member 105 has an arc-shaped notch 1052 matching with the arc-shaped protrusion.
  • the center of the arc-shaped protrusion is preferably located on the line of symmetry of a group of lenses 102, that is, the center of the arc-shaped notch 1052 is located on the line of symmetry of a group of lenses 102, so that the elastic member 104 can be more uniform
  • the pre-pressure is loaded onto the image acquisition chip 1012, so as to ensure the stability of image output quality.
  • FIG 14 in figure (b) of Figure 14, two elastic arms 1041 are in contact with the abutment member 106 and produce elastic deformation, and the entire elastic member 104 can rotate relative to the pressing member 105 to adjust at any time
  • the contact position is adapted to the gap in the installation direction.
  • the elastic member 104 can be rotated from the position shown in Figure (b) to the position shown in Figure (a), thereby automatically balancing the preload, Effectively ensure image quality.
  • the elastic component 104 is connected to the pressurizing component 105 , and the two can be integrally formed.
  • one ends of at least two elastic arms 1041 intersect to form a converging end 1043 , and the converging end 1043 has a thin-walled structure 1044 .
  • the thin-walled structure 1044 is fixedly connected with the pressing member 105 .
  • the thin-walled structure 1044 can make the entire elastic member 104 rotate relative to the pressing member 105 .
  • the thin-walled structure 1044 refers to a smaller size than other parts, which is easy to be twisted and deformed, but at the same time is not easy to break, and has good toughness.
  • the thin-walled structure 1044 is a sheet structure, and the width b is preferably within 0.5 mm.
  • the other ends of at least two elastic arms 1041 can be arranged independently of each other to form free ends.
  • the other end of at least one elastic arm 1041 is connected to another elastic arm 1041, that is, at least one end of the other elastic arm 1041 is connected to at least one elastic arm 1041 connected to the pressing member 105 preferably at least one end of the other elastic arm 1041 is rotatably connected with the other end of the at least one elastic arm 1041 connected to the pressing member 105, at this time it can be understood that the other elastic arm 1041
  • the arm 1041 constitutes a free end of the elastic member 104 for contacting other structures, which may be the abutment member 106 or the image capture circuit board 1011 .
  • one ends of at least two elastic arms 1041 may not intersect each other and be connected to the pressing member 105 independently.
  • the elastic component 104 is connected to a pressing component 105 .
  • One ends of at least two elastic arms 1041 are arranged independently of each other and are respectively fixedly connected to the pressing member 105, and the other ends of at least two elastic arms 1041 are rotatably connected to another elastic arm 1041, that is, connected to the pressing member 105.
  • the other ends of the two elastic arms 1041 connected to the component 105 can be rotatably connected to the two ends of the other elastic arm 1041 .
  • the other elastic arm 1041 not connected to the pressing part 105 is in contact with the abutment part 106 or the image acquisition circuit board 1011 .
  • the two elastic arms 1041 connected to the pressing member 105 form a rotatable hinge point with the other elastic arm 1041 through the thin-walled structure 1044, which can be understood as being connected to the pressing member 105
  • the two elastic arms 1041 and the other elastic arm 1041 are integrally formed, and stretched to form a thin-walled structure 1044 at the position where rotation is required, so that two adjacent elastic arms 1041 can rotate relative to each other.
  • the two elastic arms 1041 connected to the pressing member 105 can be hinged to the other elastic arm 1041 through a rotating shaft.
  • the above elastic component 104 is mainly provided with two elastic arms 1041 , and in other manners, the elastic component 104 may be provided with more elastic arms 1041 .
  • the elastic component 104 includes at least two sets of elastic structures that are arranged oppositely, and each set of elastic structures includes at least two elastic arms 1041 that are arranged oppositely.
  • Each group of elastic structures is connected as a whole with the pressing member 105, preferably rotatably connected.
  • the elastic member 104 also includes a base, at least two groups of the elastic structures are connected to the base, the base is connected to the abutment member 106 or the pressing member 105, preferably the base is connected to the pressing member 105 Part 105 is rotatably connected.
  • the elastic component 104 includes a base 1045 and two sets of elastic structures.
  • the elastic structures connected to the base 1045 at least one set of elastic structures is rotatably connected to the base 1045, such as formed by hinged connection of a rotating shaft. Thin wall hinge point 1046.
  • the base portion 1045 can also be rotatably connected with the pressing member 105 .
  • the base portion 1045 has an arc-shaped protrusion, and the pressing member 105 is provided with an arc-shaped notch 1052 matching with the arc-shaped protrusion.
  • the four elastic arms 1041 are in contact with the abutment member 106 and produce elastic deformation, and the entire elastic member 104 can rotate relative to the pressing member 105 to adjust at any time
  • the contact position is adapted to the gap in the installation direction.
  • the elastic member 104 can be rotated from the position of Figure (b) to the position shown in Figure (a), thereby automatically balancing the preload, Effectively ensure image quality.
  • the base 1045 can also be configured to have a thin-walled structure 1044 through which the base 1045 can rotate relative to the pressing member 105 connected to the base 1045 .
  • the elastic component 1044 includes a base 1045 and two sets of elastic structures, and the two sets of elastic structures are connected to the base 1045 through a thin-walled structure 1044 .
  • the base part 1045 is also connected to the pressurizing part 105 through the thin-walled structure 1044 .
  • the difference between the second embodiment and the first embodiment is that the elastic member 104 is connected with the abutment member 106, one end of the elastic member 104 is connected with the abutment member 106 to form a fixed end, and the other end of the elastic member 104 is a free end to be connected with the abutment member 106.
  • the pressing member 105 is in contact.
  • the method of connecting the elastic member 104 to the pressing member 105 provided in the above embodiments is also applicable to the case where the elastic member 104 is connected to the contact member 106 .
  • connection manner between the elastic member 104 and the abutment member 106 can refer to the connection manner between the elastic member 104 and the pressing member 105 , and can refer to the above-mentioned embodiments for details, and will not be described in detail here.
  • the elastic component 104 is connected to the abutting component 106 , and the two can be integrally formed.
  • one ends of at least two elastic arms 1041 intersect to form a converging end 1043 , and the converging end 1043 has a thin-walled structure 1044 .
  • the thin-walled structure 1044 is fixedly connected to the abutting component 106 .
  • the thin-walled structure 1044 can make the entire elastic component 104 rotate relative to the abutting component 106 .
  • the elastic component 104 is connected to the abutting component 106 , and the two can be formed separately.
  • one ends of at least two elastic arms 1041 intersect to form a converging end 1043
  • the converging end 1043 is rotatably connected to the abutting component 106 .
  • the converging end 1043 has an arc-shaped protrusion
  • the abutting member 106 has an arc-shaped notch matching the arc-shaped protrusion.
  • Embodiment 3 is different from Embodiment 1 and Embodiment 2 in that the elastic component 104 of this embodiment is an elastic body made of elastic material, and the installation gap is compensated by the elastic body.
  • the elastic body may be an elastic body structure such as rubber or foam, and the specific material is not limited.
  • the pressing member 105 can be provided with a protruding pressing head 1053 for directly pressing against the elastic member 104 in the form of an elastic body.
  • the elastic body is connected to the pressing part 105 or the abutting part 106 . In other embodiments, the elastic body is not connected to both the pressing part 105 and the abutting part 106 .
  • the elastic member 104 when the elastic member 104 is constructed in the form of the elastic arm 1041 , the elastic member 104 as a whole can adopt a shrapnel structure, which has good elasticity, simple structure and convenient manufacture.
  • the structure of the elastic member 104 is not limited to the shrapnel and the elastic body, and may also be other structures capable of producing elastic deformation, such as butterfly springs, coil springs, and the like.
  • the elastic component is not limited to being rotatably connected to the abutting component or the pressing component through the arc-shaped protrusion, which is only an optional implementation manner and does not constitute a limitation to the present application.
  • the installation structure provided by the embodiment of the present application achieves the purpose of maintaining a constant pre-pressure and avoids the use of glue by using elastic components and pressurizing components to realize rapid installation and fixation of the image acquisition device and compensation of tolerance gaps.
  • the outer diameter of the camera module is reduced, and the reliability and compactness of the camera module installation are also improved.
  • the self-balancing of the pre-pressure of the elastic parts on multiple image acquisition chips is realized through the use of arc or hinged hinges or thin-walled structures, avoiding the adverse effects of local stress on image quality.
  • it also avoids the adverse effects of uneven glue thickness and pores on the pressure resistance and light-shielding performance of the camera module, improves the installation quality, and reduces the difficulty of manufacturing.

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Abstract

一种安装结构、摄像模组（11）、内镜探头（1）及医疗器械，安装结构包括镜头基座（103）、弹性部件（104）和加压部件（105），摄像模组（11）的镜头（102）固定设置在镜头基座（103）上，弹性部件（104）设置在镜头基座（103）和加压部件（105）之间，加压部件（105）与镜头基座（103）可拆卸的连接，并向弹性部件（104）施加朝向镜头基座（103）方向的压力，使弹性部件（104）产生弹性变形后将摄像模组（11）的图像采集装置（101）压抵在镜头基座（103）上。如此配置，实现了摄像模组（11）的图像采集装置（101）与镜头基座（103）之间的可靠连接，能够确保摄像模组（11）的性能，减小摄像模组（11）的外径，而且还能提升图像质量。

Description

安装结构、摄像模组、内镜探头及医疗器械 技术领域
本申请涉及医疗器械技术领域，具体涉及一种安装结构、摄像模组、内镜探头及医疗器械。
背景技术
微创伤手术是现有微创伤医疗手段中最为成熟且被广泛使用的技术之一。其中内窥镜微创伤手术克服了传统手术创口大、恢复周期长的缺点，大大减少了患者的痛苦，受到了患者的青睐。目前基于内窥镜的微创伤手术已经涵盖了多个科室，已经成为现代医学中不可缺失的医疗手段之一，具有十分重要的地位。
内窥镜通常需要安装一个或多个图像采集芯片，图像采集芯片的电路板通常需要采用胶水与镜头基座进行连接，但胶水的使用量不易控制，胶水过少，容易脱落，胶水过多则容易增大模组尺寸。此外，胶水溢出还会影响摄像模组性能的风险，以及医疗器械在重复消毒灭菌时，胶水可能失效诱发故障的问题。另外，由于胶水的使用，使得镜头基座上通常需要外扩一圈预留胶水粘接面，以保证连接强度，但胶水粘接面的预留增大了摄像模组的外径，且粘接区域还经常出现溢胶，溢胶后的尺寸具有不可控性，也进一步增大了摄像模组的外径，因此，这种方式不利于医疗器械的微型化。不仅于此，胶水可能存在微小孔隙，对医疗器械的耐压性能和遮光性能都会有不利影响。
因此，亟需一种不需要使用胶水便可实现图像采集电路板与镜头基座的连接的安装结构。
发明内容
本申请的目的在于提供一种安装结构、摄像模组、内镜探头及医疗器械，以解决现有的医疗器械用的摄像模组安装时所存在的问题。
为实现上述目的或其它相关目的，本申请提供一种安装结构，用于医疗器械的摄像模组，所述摄像模组包括镜头和位于所述镜头的近端的图像采集装置，所述安装结构包括镜头基座、弹性部件和加压部件；
所述镜头基座用于安装所述镜头；
所述弹性部件设置在所述镜头基座和所述加压部件之间；
所述加压部件与所述镜头基座可拆卸的连接，并向所述弹性部件施加朝向所述镜头基座方向的压力，以使所述弹性部件产生弹性变形后将所述图像采集装置压抵在所述镜头基座上。
可选地，所述安装结构还包括抵接部件，所述抵接部件设置在所述镜头基座和所述弹性部件之间，并将弹性变形后的所述弹性部件的弹性力传递至所述图像采集装置，以使所述图像采集装置在受到所述抵接部件所施加的作用力后与所述镜头基座的近端抵接。
可选地，所述弹性部件与所述抵接部件或所述加压部件连接。
可选地，所述弹性部件与所述抵接部件或所述加压部件可转动地连接。
可选地，所述弹性部件包括基部以及与所述基部连接的弹性臂，其中所述基部与所述加压部件或所述抵接部件可转动地连接，和/或，所述弹性臂与所述基部可转动地连接。
可选地，所述弹性部件包括至少两个相对设置的弹性臂，至少两个所述弹性臂的一端与所述加压部件或所述抵接部件连接。
可选地，至少两个所述弹性臂的一端相交形成交汇端，所述交汇端与所述加压部件或所述抵接部件可转动地连接。
可选地，所述交汇端具有弧形凸起，所述加压部件或所述抵接部件具有与所述弧形凸起配合的弧形缺口，或者，所述交汇端具有薄壁结构，所述薄壁结构与所述加压部件或所述抵接部件连接。
可选地，至少两个所述弹性臂的另一端相互独立地设置并形成自由端，或者至少一个所述弹性臂的另一端可转动地连接至另外的一个弹性臂。
可选地，至少一部分所述弹性臂具有导向面，所述导向面用于使所述弹性臂能够相对于所接触的结构滑动。
可选地，所述弹性部件包括基部和至少两组相对设置的弹性结构，每组所述弹性结构包括至少两个相对设置的弹性臂，且至少两组所述弹性结构与所述基部连接，所述基部与所述抵接部件或所述加压部件连接；其中，与所述基部连接的所述弹性结构中，至少有一组所述弹性结构与所述基部可转动地连接，和/或，所述基部与所述抵接部件或所述加压部件可转动地连接。
可选地，所述基部具有弧形凸起，所述加压部件或所述抵接部件设置有与所述弧形凸起配合的弧形缺口，或者，所述基部具有薄壁结构，所述薄壁结构与所述加压部件或所述抵接部件连接。
可选地，与所述基部连接的所述弹性结构中，至少有一组所述弹性结构通过薄壁结构或转轴与所述基部可转动地连接。
可选地，所述弧形凸起的中心位于一组镜头的对称线上。
可选地，所述弹性部件包括至少两个相对设置的弹性臂，各个所述弹性臂上所形成的接触区域的中心连线的最大距离至少为所述摄像模组中的两个镜头的中心距离的0.5倍以上。
可选地，所述弹性部件为由弹性材料制成的弹性体。
可选地，所述镜头基座的近端设置有用于定位所述图像采集装置的定位凹槽。
可选地，所述加压部件与所述镜头基座通过卡扣连接。
可选地，所述安装结构还包括侧盖板，固定设置在所述镜头基座的两相对侧，以密封所述镜头基座的外周。
可选地，所述安装结构还包括密封胶带，粘贴在所述侧盖板的缝隙处。
为实现上述目的或其它相关目的，本申请还提供一种摄像模组，用于医疗器械，包括一组镜头、图像采集装置以及任一项所述的安装结构，所述一组镜头固定安装在所述镜头基座上，所述镜头基座的近端与所述图像采集装置相抵接。
可选地，所述图像采集装置包括图像采集电路板和设置在所述图像采集电路板上的图像采集芯片，所述图像采集电路板的一侧抵接在所述镜头基座的近端，所述图像采集芯片的数量为一个或多个。
可选地，所述图像采集电路板为T形结构或U形结构。
为实现上述目的或其它相关目的，本申请还提供一种内镜探头，用于医疗器械，包括安装座、后盖和任一项所述的摄像模组，所述后盖外套在所述安装座和所述摄像模组上，所述摄像模组的一部分结构安装在所述安装座内。
可选地，所述内镜探头的外径满足以下要求：
当所述图像采集装置中的图像采集芯片的数量为一个时，c＜D≤1.3c；
当所述图像采集装置中的图像采集芯片的数量为多个时，1.7c＜D≤2.3c；
其中：c为图像采集芯片的对角线长度，D为内镜探头的外径。
为实现上述目的或其它相关目的，本申请另提供一种医疗器械，包括任一项所述的内镜探头。
本申请提供的安装结构、摄像模组、内镜探头及医疗器械具有如下优点中的至少一个：
1、安装结构包括弹性部件和加压部件，加压部件与镜头基座可拆卸的连接，只要通过加压部件向弹性部件施加朝镜头基座方向的预压力，即可通过弹性力将图像采集装置紧密地压抵在镜头基座上，实现了图像采集装置和镜头基座之间的可靠连接，避免了胶水的使用，解决了使用胶水所存在的诸多问题；因此，本申请能够确保摄像模组的性能，也能在医疗器械进行灭菌消毒时降低发生故障的风险，尤其还能够减小摄像模组的外径，易于实现医疗器械的微型化，并且可以确保摄像模组的耐压性能和遮光性能，降低了制造难度；特别地，该安装结构还能够实现图像采集装置与镜头基座的快速安装，而且还能够利用弹性部件实现安装方向上的公差间隙补偿，始终确保压力的均匀性，从而提升图像质量；
2、安装结构还包括抵接部件，抵接部件设置在镜头基座和所述弹性部件之间，并用于将弹性变形后的弹性部件的弹性力传递至图像采集装置，以使图像采集装置在受到抵接部件所施加的作用力后与镜头基座的近端抵接；如此配置，增大了接触面积，增大了预压力，并减小图像采集芯片的局部应力，进一步保证图像质量；
3、利用弹性部件与抵接部件和加压部件中的一个可转动地连接，能够实现图像采集芯片预压力的自平衡，可避免对图像采集芯片产生局部应力，避免局部应力导致的图像采集芯片的不均匀形变，从而确保图像质量；
4、弹性部件包括至少两个相对设置的弹性臂，各个所述弹性臂上所形成的接触区域的中心连线的最大距离至少为摄像模组中的两个镜头的中心距离的0.5倍以上，这样做，使弹性部件具有较大的形变补偿空间，预压力调节的范围更广，能够适用于一个或多个图像采集芯片的场景；
5、内镜探头的外径尺寸可根据图像采集芯片的数量和尺寸进行优化，使内镜探头的外径尺寸最小，更有利于医疗器械的微型化；如当图像采集芯片的数量为一个时，内镜探头的外径D满足：c＜D≤1.3c，或者当图像采集芯片的数量为多个时，如2个、3个或4个，内镜探头的外径D满足：1.7c＜D≤2.3c。
附图说明
附图用于更好地理解本申请，不构成对本申请的不当限定。其中：
图1是本申请优选实施例的带有内镜探头的医疗器械示意图；
图2是本申请优选实施例的内镜探头的封装结构示意图；
图3是本申请优选实施例的内镜探头的分解结构示意图；
图4是本申请优选实施例的摄像模组的结构示意图；
图5是图4所示的摄像模组的分解示意图；
图6是图4所示的摄像模组的剖面示意图；
图7是图5所示的摄像模组的分解剖面示意图；
图8是本申请优选实施例的加压部件自带弹性部件的结构示意图；
图9是本申请优选实施例的镜头基座的结构示意图；
图10是本申请优选实施例的摄像模组的正剖面变形示意图；
图11是本申请优选实施例的图像采集芯片相对管体的布局示意图；
图12是本申请实施例一的摄像模组的剖面示意图，其中弹性部件与加压部件可转动地连接；
图13是图12所示的摄像模组的分解剖面示意图；
图14是图12所示的摄像模组的正剖面示意图，其中弹性部件能够从图(b)的状态转动至图(a)的状态；
图15是本申请实施例一的另一摄像模组的正剖面示意图，其中弹性部件通过薄壁结构与加压部件可转动地连接；
图16是本申请实施例一的另一摄像模组的正剖面示意图，其中弹性部件中的弹性臂自身形成薄壁铰接点；
图17是本申请实施例一的另一摄像模组的分解剖面示意图，其中弹性部件包括两组弹性结构，两组弹性结构通过转轴铰接在基部上；
图18是图17所示的另一摄像模组的正剖面示意图，其中弹性部件能够从图(b)的状态转动至图(a)的状态；
图19是本申请实施例一的另一摄像模组的正剖面示意图，其中弹性部件包括两组弹性结构，两组弹性结构通过薄壁结构铰接在基部上；
图20是本申请实施例二的摄像模组的正剖面示意图，其中弹性部件与抵接部件连接；
图21是本申请实施例二的另一摄像模组的正剖面示意图，其中弹性部件与抵接部件可转动地连接；
图22是本申请实施例三的摄像模组的正剖面示意图，其中弹性部件采用弹性体；
图23是本申请优选实施例的摄像模组的剖面示意图，其中图像采集电路板为T形结构；
图24是图23所示的摄像模组的分解示意图。
[附图标记说明]：
1内镜探头；2管体；3手柄；
11摄像模组；
101图像采集装置；1011图像采集电路板；1012图像采集芯片；
102一组镜头；
103镜头基座；1031卡槽；1032定位凹槽；
104弹性部件；1041弹性臂；1042导向面；1043交汇端；1044薄壁结构；1045基部；1046薄壁铰接点；
105加压部件；1051卡勾；1052-弧形缺口；1053-压头；
106抵接部件；
107侧盖板；
108密封胶带；
12安装座；
13后盖；
14照明模组。
具体实施方式
以下通过特定的具体实例说明本申请的实施方式，本领域技术人员可由本说明书所揭露的内容轻易地了解本申请的其他优点与功效。本申请还可以通过另外不同的具体实施方式加以实施或应用，本说明书中的各项细节也可以基于不同观点与应用，在没有背离本申请的精神下进行各种修饰或改变。需要说明的是，本实施例中所提供的图示仅以示意方式说明本申请的基本构想，遂图式中仅显示与本申请中有关的组件而非按照实际实施时的组件数目、形状及尺寸绘制，其实际实施时各组件的型态、数量及比例可为一种随意的改变，且其组件布局型态也可能更为复杂。
另外，以下说明内容的各个实施例分别具有一或多个技术特征，然此并不意味着使用本申请者必需同时实施任一实施例中的所有技术特征，或仅能分开实施不同实施例中的一部或全部技术特征。换句话说，在实施为可能的前提下，本领域技术人员可依据本申请的公开内容，并视设计规范或实作需求，选择性地实施任一实施例中部分或全部的技术特征，或者选择性地实施多个实施例中部分或全部的技术特征的组合，借此增加本申请实施时的 弹性。
如在本说明书中所使用的，单数形式“一”、“一个”以及“该”包括复数对象，复数形式“多个”包括两个以上的对象，除非内容另外明确指出外。如在本说明书中所使用的，术语“或”通常是以包括“和/或”的含义而进行使用的，除非内容另外明确指出外，以及术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接。可以是机械连接，也可以是电连接。可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
为使本申请的目的、优点和特征更加清楚，以下结合附图对本申请作进一步详细说明。需说明的是，附图均采用非常简化的形式且均使用非精准的比例，仅用以方便、明晰地辅助说明本申请实施例的目的。附图中相同或相似的附图标记代表相同或相似的部件。
在本文中，术语“近端”、“远端”是从使用该医疗器械的医生角度来看相对于彼此的元件或动作的相对方位、相对位置、方向，尽管“近端”、“远端”并非是限制性的，但是“近端”通常指该医疗器械在正常操作过程中靠近医生的一端，而“远端”通常是指首先进入患者体内的一端。
以下结合附图以及优选实施例对本申请作进一步的说明。在不冲突的情况下，下述的实施方式及实施方式中的特征可以相互补充或相互组合。
参考图1和图2，本申请实施例提供一种医疗器械，包括位于远端的内镜探头1。所述医疗器械还包括管体2和手柄3，所述内镜探头1与管体2的远端连接，管体2的近端连接手柄3。外部导线穿过管体2和手柄3与内镜探头1连接。所述外部导线例如为提供电流的导线，以及传输信号的导线等。
参考图3，所述内镜探头1包括摄像模组11、安装座12和后盖13。所述后盖13外套在安装座12和摄像模组11上。所述摄像模组11的一部分结构安装在安装座12内。所述后盖13周向封闭安装座12和摄像模组11。后盖13与安装座12固定连接，例如胶水粘接。所述安装座12和后盖13可以一体制作成型，也可以分开制作成型后再装配。优选的，所述安装座12和后盖13两者分开制作再进行组装，这样做，有利于降低安装座12的加工难度，并减小安装座12的尺寸。所述安装座12通常包括多个轴向贯通的安装槽，多个安装槽相互独立且互不干涉，所述摄像模组11安装在对应的安装槽内。
所述内镜探头1还可包括照明模组14，所述照明模组14固定安装在安装座12上，如安装在安装座12对应的安装槽内。所述照明模组14和摄像模组11分别安装在安装座12的不同安装槽内，两者互不干涉。所述照明模组14可为摄像模组11采集图像提供照明。作为一示例，所述照明模组14包括两个照明灯(未标注)，两个照明灯对称地安装在安装座12上。所述照明模组14的照明方式一般为冷光源并配合光线导光束，或者为LED照明。
进一步地，为了解决现有医疗器械上的图像采集装置与镜头基座进行连接时所存在的问题，本申请实施例还提供了一种安装结构，适用于摄像模组11，能够在不使用胶水的情况下，实现图像采集装置与镜头基座的紧密且可靠地连接，从而解决现有采用胶水粘接镜头基座与图像采集装置所存在的一些问题。
参考图4至图24，所述摄像模组11包括安装结构、图像采集装置101和一组镜头102，所述图像采集装置101位于一组镜头102的近端，所述安装结构包括镜头基座103、弹性部件104和加压部件105。所述一组镜头102固定安装在镜头基座103上，通常采用胶水将一组镜头102粘接固定在镜头基座103上，但也不限于胶水粘接的方式。所述镜头基座103的近端与图像采集装置101相抵接。这里的“抵接”指的是，镜头基座103的近端的安装平面与图像采集装置101紧密且可靠地贴合，以保证图像质量。此外，所述弹性部件 104设置在镜头基座103和加压部件105之间；所述加压部件105与镜头基座103可拆卸的连接，并向弹性部件104施加朝向镜头基座103方向的压力，以使弹性部件104产生弹性变形；弹性变形后的弹性部件104则将图像采集装置101压抵在镜头基座103上，使图像采集装置101和镜头基座103紧密地贴合。因此，所述弹性部件104在安装时受压已产生变形，由此实现图像采集装置101的安装。
所述图像采集装置101与一组镜头102相配合，以采集指定区域的图像。所述一组镜头102是将被观察对象的光像呈现在图像采集装置101上，图像采集装置101采集对象的图像信息，并对图像信息进行相应的处理并传输。具体地，所述图像采集装置101包括图像采集电路板1011和设置在图像采集电路板1011上的图像采集芯片1012；图像采集芯片1012采集指定区域的图像信息，图像采集电路板1011对图像信息进行相应的处理并传输。图像采集芯片1012的数量可以是一个或多个，多个是指至少两个。所述图像采集电路板1011的形状没有特别的要求，如可以是图4至图21所示的U形结构，或者图23和图24所示的T形结构，或者是其他形状。所述图像采集芯片1012的形状也不限定，包括但不限于为各图中所示的矩形。
在应用上述安装结构时，只要通过加压部件105向弹性部件104施加朝镜头基座103方向的预压力，即可通过弹性力将图像采集装置101可靠地压抵在镜头基座103的近端，实现了图像采集装置101和镜头基座103之间的可靠且紧密的安装连接，从而避免了胶水的使用，解决了现有使用胶水所导致的诸多问题。
具体地，本申请提供的安装结构用于安装图像采集装置101和一组镜头102，并在安装这些部件后，能够确保摄像模组11的性能，也能在医疗器械进行灭菌消毒时降低摄像模组11发生故障的风险，尤其还能够减小摄像模组11的外径，由此减小内镜探头1的外径，有利于实现医疗器械的微型化。此外，由于避免了胶水的使用，因此，该安装结构还可以确保摄像模组11的耐压性能和遮光性能，并降低制造难度。此外，该安装结构还能够实现图像采集装置101与镜头基座103之间的快速安装，降低安装难度，简化安装过程。另外，现有技术中为了解决使用胶水所引发的问题，还曾采用螺钉锁紧图像采集装置101和镜头基座103，但是螺钉锁紧方式所存在的问题是压力不均匀，难以保证图像质量，而本申请能够利用弹性部件104实现安装方向上的公差间隙补偿，使图像采集芯片1012所受到的压力保持均匀，从而提升图像质量。
本申请对加压部件105与镜头基座103之间可拆卸连接的方式不作限定。作为一示例，所述加压部件105与镜头基座103通过卡扣连接。在卡扣连接的方式中，结构简单，拆装方便，而且不易增加摄像模组11的外径。具体地，如图8和图9所示，所述加压部件105具有卡勾1051，所述镜头基座103具有卡槽1031，所述卡勾1051与卡槽1031卡接连接，从而实现镜头基座103与加压部件105之间的固定连接。如在其他实施例中，所述镜头基座103可与加压部件105螺纹连接。
继续参考图9，所述镜头基座103的近端可设置有用于定位图像采集装置101的定位凹槽1032。定位凹槽1032的数量根据图像采集芯片1012的数量确定，一个定位凹槽1032定位一个图像采集芯片1012。定位凹槽1032的形状优选与图像采集芯片1012的形状匹配。
作为一优选实施例，所述安装结构还包括抵接部件106，所述抵接部件106设置在镜头基座103和弹性部件104之间，并将弹性变形后的弹性部件104的弹性力传递至图像采集装置101，以使图像采集装置101在受到抵接部件106所施加的压力后与镜头基座103的近端紧密地贴合。所述抵接部件106可为平板式的块状结构，接触面积大。因此，所述抵接部件106能够提供较大的接触面积，增大预压力，并减小图像采集芯片1012的局部应力，进一步保证图像质量。
作为一示例，如图23和图24所示，所述抵接部件106和加压部件105均具有允许图像采集电路板1011穿过的中心孔(未标注)，此时可将图像采集电路板1011设计为T形结构，使图像采集电路板1011的近端依次穿过抵接部件106和加压部件105。或者在其他实施例中，可参阅图5，所述抵接部件106和加压部件105未设置中心孔，而是将抵接部件106和加压部件105设置在图像采集电路板1011之间，此时，图像采集电路板1011可设计为U形结构，抵接部件106和加压部件105设置在图像采集电路板1011的U形槽内。
进一步地，参考图4和图5，所述安装结构还包括侧盖板107，固定设置在镜头基座103的两相对侧，以密封镜头基座103的外周，确保遮光性能和耐压性能。进一步地，所述安装结构还包括密封胶带108，粘贴在侧盖板107上。密封胶带108主要覆盖侧盖板107上的缝隙，并不一定需要覆盖整个侧盖板107。因为侧盖板107与镜头基座103的连接位置处有可能存在缝隙，造成透光，为此需要密封胶带108密封透光部位。此外，侧盖板107为绝缘体，所述密封胶带和侧盖板107均采用不透明材料。
在一实施例中，所述弹性部件104与加压部件105连接，例如图5至图19所示。所述弹性部件104与加压部件105可以一体成型制作或分体成型制作后组装。这里的“一体成型制作”指的是，在加工过程中，一体成型获取自带弹性部件104的加压部件105，或者自带加压部件105的弹性部件104。这里的“分体成型制作”指的是，在加工过程中，各自制造弹性部件104和加压部件105，再将弹性部件104和加压部件105通过一定的方式连接在一起。
在另一实施例中，所述弹性部件104与抵接部件106连接，例如图20和图21所示。所述弹性部件104与抵接部件106可以一体成型制作或分体成型制作后组装。同理，这里的“一体成型制作”指的是，在加工过程中，一体成型获取自带弹性部件104的抵接部件106，或者自带抵接部件106的弹性部件104。这里的“分体成型制作”指的是，在加工过程中，各自制造弹性部件104和抵接部件106，再将弹性部件104和抵接部件106通过一定的方式连接在一起。
作为一示例，参考图5至图8，所述弹性部件104与加压部件105连接，所述弹性部件104可与加压部件105一体成型，如通过模具加工一体成型。所述弹性部件104具体包括至少两个相对设置的弹性臂1041，至少两个弹性臂1041的一端与加压部件105连接，另一端为自由端。至少两个弹性臂1041的自由端用于直接接触图像采集电路板1011的背面，或直接接触抵接部件106。每个弹性臂1041能够产生弹性变形，以补偿安装方向上的公差间隙。
优选地，至少一部分弹性臂1041设置导向面1042，所述导向面1042用于使弹性臂1041能够相对于与该弹性臂1041接触的结构(如抵接部件106或加压部件105或图像采集电路板1011)更顺畅地滑动，降低弹性补偿的阻力。至少两个弹性臂1041相对于一组镜头102排布的对称线优选对称分布。因此，在安装时，弹性臂1041可发生变形，以补偿图像采集装置101和镜头基座103在安装方向上的公差间隙，从而使图像采集电路板1011良好的贴合在镜头基座103的近端的安装平面上。
例如参考图10，在图10的图(a)中，两个弹性臂1041与抵接部件106接触并产生弹性形变，并且弹性臂1041可以随时调整位置以适应于安装方向上的间隙，例如在图10的(b)中，弹性臂1041能够从图(a)的位置C1滑动至图(b)的位置C2(虚线为滑动后的弹性臂1041)，从而自动平衡预压力，有效的确保图像质量。
继续参考图10，为了在安装时弹性部件104呈现压缩的状态，需满足d＜s。其中d为弹性部件104的固定端到与该弹性部件104所接触的结构的垂直距离，s为弹性部件104的固定端到自由端上最远点的垂直距离。在一实施例中，加压部件105的前侧平面到抵接部件106的后侧平面的距离为d，加压部件104的前侧平面到弹性臂1041的前方最远点的 距离为s。如此配置，使弹性臂1041在安装时即处于弹性变形状态，实现弹性补偿。反之，当弹性部件104与抵接部件106连接时，亦通过相同的方式，满足d＜s，使弹性部件104在安装时被压缩产生预压力。
进一步地，各个弹性臂1041上所形成的接触区域的中心连线的最大距离q优选至少为两个镜头的中心距离p的0.5倍以上。也就是说，一组镜头102中的两个镜头的中心距离为p，弹性臂1041和抵接部件106或电路板接触区域的最大跨距为q，满足q＞0.5p。在此情形下，使弹性部件104具有较大的形变补偿空间，预压力调节的范围更广，能够适用于一个或多个图像采集芯片1012的场景。
为了使内镜探头1的尺寸最小，本申请还优化了内镜探头1的外径尺寸，也即优化了管体2的尺寸，管体2的外径通常与内镜探头1的外径相同。继续参考图11，所述内镜探头1的外径满足以下要求：
当所述图像采集芯片1012的数量为一个时，c＜D≤1.3c；
当所述图像采集芯片1012的数量为多个时，1.7c＜D≤2.3c；
其中：c为图像采集芯片的对角线长度，D为内镜探头的外径。
所应理解，图11中虽然仅示意了2个图像采集芯片1012的情况，但以上关系式“1.7c＜D≤2.3c”同样适用于3个或4个或更多图像采集芯片1012的情况。如当图像采集芯片1012的数量为3个时，在端面投影上，3个图像采集芯片1012的中心连线呈三角形；如当图像采集芯片1012的数量为4个时，在端面投影上，4个图像采集芯片1012的中心连线呈四边形，如矩形。此外，图像采集芯片1012的外形形状包括但不限于为矩形。另外，以上尺寸c应理解为图像采集芯片1012的横截面上最远两点之间连线的长度。
进一步优选地，所述弹性部件104与抵接部件106或加压部件105可转动地连接，以此实现多个图像采集芯片1012预压力的自平衡，可避免对单个图像采集芯片1012产生局部应力，避免局部应力导致的图像采集芯片1012的不均匀形变，从而提升图像质量。
更详细地，当弹性部件104整个可转动时，那么，当弹性部件104给多个图像采集芯片1012的正压力存在较大差异时，弹性部件104可相对于与其连接的加压部件105或抵接部件106发生转动，从而起到预压力自动平衡的效果，确保图像采集的质量。进一步优选地，弹性部件104自身还可发生转动，如弹性臂之间可相对转动，或者弹性臂可相对于与之连接的基部转动，那么，当弹性部件104给予多个图像采集芯片1012的正压力存在较大差异时，单个弹性臂1041也可发生转动，从而进一步起到预压力自动平衡的效果，确保图像采集的质量。
为了更清楚的解释说明本申请提供的安装结构，以下列举几个具体的优选实施例以进一步解释说明弹性部件与加压部件或抵接部件之间的连接方式，但以下说明不作为对本申请的限定。
实施例一
本实施例中，弹性部件104与加压部件105连接，弹性部件104的一端与加压部件105连接形成固定端，弹性部件104的另一端为自由端以与抵接部件106接触或直接与图像采集电路板1011的背面接触。
作为一示例，参考图12至图14，所述弹性部件104与加压部件105连接，两者可分体成型。其中，至少两个弹性臂1041的一端相交并形成交汇端1043，所述交汇端1043与加压部件105可转动地连接。在一具体实施例中，所述交汇端1043具有弧形凸起，所述加压部件105具有与所述弧形凸起配合的弧形缺口1052。所述弧形凸起的中心优选位于一组镜头102的对称线上，也即所述弧形缺口1052的中心位于一组镜头102的对称线上，如此一来，弹性部件104可更为均匀的将预压力加载到图像采集芯片1012上，从而保证图像输出质量的稳定。
更详细地参考图14，在图14的图(b)中，两个弹性臂1041与抵接部件106接触并产生弹性形变，并且弹性部件104整个可以相对于加压部件105转动，以随时调整接触位置以适应于安装方向上的间隙，例如在图14的图(a)中，弹性部件104能够从图(b)的位置转动至图(a)所示的位置，从而自动平衡预压力，有效的确保图像质量。
作为一示例，参考图15，所述弹性部件104与加压部件105连接，两者可一体成型。其中，至少两个弹性臂1041的一端相交并形成交汇端1043，所述交汇端1043具有薄壁结构1044。所述薄壁结构1044与加压部件105固定连接。所述薄壁结构1044能够使整个弹性部件104相对于加压部件105转动。这里的薄壁结构1044指的是尺寸相比其余地方更小而容易扭转变形，但同时也不容易断裂，具有较好的韧性。如可选用PP材料(聚丙烯)等韧性较好的高分子材料制备薄壁结构1044。此外，所述薄壁结构1044为片状结构，且宽度b优选在0.5mm以内。
在本实施例中，至少两个弹性臂1041的另一端可以相互独立地设置而形成自由端。在其他实施例中，至少一个弹性臂1041的另一端连接至另外的一个弹性臂1041，也即，所述另外的一个弹性臂1041的至少一端与与加压部件105连接的至少一个弹性臂1041的另一端连接，优选所述另外的一个弹性臂1041的至少一端与与加压部件105连接的至少一个弹性臂1041的另一端可转动地连接，此时可以理解为，所述另外的一个弹性臂1041构成弹性部件104的自由端而用于与其他结构接触，所述其他结构可以是抵接部件106或图像采集电路板1011。此外，至少两个弹性臂1041的一端也可不相交而各自独立地与加压部件105连接。
作为一示例，参考图16，所述弹性部件104与加压部件105连接。其中至少两个弹性臂1041的一端相互独立地设置并分别与加压部件105固定连接，至少两个弹性臂1041的另一端均可转动地连接另外的一个弹性臂1041，也即，与加压部件105连接的两个弹性臂1041的另一端均可转动连接另外一个弹性臂1041的两端。未与加压部件105连接的另外一个弹性臂1041则与抵接部件106接触或图像采集电路板1011接触。在一具体实施例中，与加压部件105连接的两个弹性臂1041通过薄壁结构1044与另外的一个弹性臂1041形成可转动的铰接点，此时可以理解为，与加压部件105连接的两个弹性臂1041与另外的一个弹性臂1041为一体成型结构，并在需要转动的位置拉伸形成薄壁结构1044，使两相邻弹性臂1041能够相对转动。当然在其他实施例中，与加压部件105连接的两个弹性臂1041可通过转轴与另外的一个弹性臂1041铰接。
以上弹性部件104主要设置两个弹性臂1041，而在其他方式中，所述弹性部件104可以设置更多弹性臂1041。具体地，所述弹性部件104包括至少两组相对设置的弹性结构，每组所述弹性结构包括至少两个相对设置的弹性臂1041。每组所述弹性结构作为一个整体与加压部件105连接，优选可转动地连接。
作为一优选实施例，所述弹性部件104还包括基部，至少两组所述弹性结构与所述基部连接，所述基部与抵接部件106或加压部件105连接，优选所述基部与加压部件105可转动地连接。
作为一示例，参考图17，所述弹性部件104包括基部1045和两组弹性结构，与基部1045连接的弹性结构中，至少有一组弹性结构可转动地与基部1045连接，如通过转轴铰接连接形成薄壁铰接点1046。此外，所述基部1045还可与加压部件105可转动地连接。如所述基部1045具有弧形凸起，所述加压部件105设置有与所述弧形凸起配合的弧形缺口1052。
更详细地参考图18，在图18的图(b)中，四个弹性臂1041与抵接部件106接触并产生弹性形变，并且弹性部件104整个可以相对于加压部件105转动，以随时调整接触位置以适应于安装方向上的间隙，例如在图18的图(a)中，弹性部件104能够从图(b)的 位置转动至图(a)所示的位置，从而自动平衡预压力，有效的确保图像质量。
所述基部1045还可被配置为具有薄壁结构1044，通过薄壁结构1044使基部1045相对于与基部1045连接的加压部件105转动。作为一示例，参考图19，所述弹性部件1044包括基部1045和两组弹性结构，两组弹性结构均通过薄壁结构1044与基部1045连接。此外，所述基部1045还通过薄壁结构1044与加压部件105连接。
所需理解的是，当弹性部件104采用至少两组弹性结构时，通过更多的弹性臂1041向单个或多个图像采集芯片1012施加压力，压力更均匀，可以进一步提升图像质量。
实施例二
实施例二与实施例一的区别主要在于，将弹性部件104与抵接部件106连接，弹性部件104的一端与抵接部件106连接形成固定端，弹性部件104的另一端为自由端以与加压部件105接触。而以上实施例提供的弹性部件104与加压部件105相连接的方式同样适用于弹性部件104与抵接部件106相连接时的情况。为了简明起见，弹性部件104与抵接部件106之间的连接方式，可参考弹性部件104与加压部件105之间的连接方式，具体可参阅上述实施例，在此不再详细描述。
如在一实施例中，参考图20，所述弹性部件104与抵接部件106连接，且两者可一体成型。其中，至少两个弹性臂1041的一端相交并形成交汇端1043，所述交汇端1043具有薄壁结构1044。所述薄壁结构1044与抵接部件106固定连接。所述薄壁结构1044能够使整个弹性部件104相对于抵接部件106转动。
如在另一实施例中，参考图21，所述弹性部件104与抵接部件106连接，两者可分体成型。其中，至少两个弹性臂1041的一端相交并形成交汇端1043，所述交汇端1043与抵接部件106可转动地连接。在一具体实施例中，所述交汇端1043具有弧形凸起，所述抵接部件106具有与所述弧形凸起配合的弧形缺口。
实施例三
实施例三与实施例一和实施例二所不同之处在于，本实施例的弹性部件104为由弹性材料制成的弹性体，通过弹性体来补偿安装间隙。该弹性体可以是橡胶、泡棉等弹性体结构，具体材料不限定。
参考图22，所述加压部件105可设置一个突伸的压头1053，压头1053用于直接压抵弹性体形式的弹性部件104。在一实施例中，弹性体连接在加压部件105或抵接部件106上。在其他实施例中，弹性体与加压部件105和抵接部件106均不连接。
对于上述实施例，还需补充说明的是，当采用弹性臂1041形式来构建弹性部件104时，弹性部件104整体可采用弹片结构，弹性好，结构简单，制造也方便。当然弹性部件104的结构不限于弹片、弹性体，还可以是其他能够产生弹性变形的结构，如蝶形弹簧、螺旋弹簧等。此外，弹性部件不限于通过弧形凸起与抵接部件或加压部件可转动地连接，此仅为一种可选的实施方式而不构成对本申请的限定。
综上所述，本申请实施例提供的安装结构，通过采用弹性部件和加压部件实现图像采集装置的快速安装固定及公差间隙补偿，达到了保持恒定预压力的目的，避免了胶水的使用，减小了摄像模组的外径尺寸，同时也提升了摄像模组安装的可靠性和紧凑性。此外，通过采用弧形或转轴铰接或薄壁结构铰接，实现了弹性部件对多个图像采集芯片预压力的自平衡，避免了局部应力的产生对图像质量的不利影响。另外，也避免了胶水厚度不均匀、孔隙对摄像模组耐压和遮光性能带来的不利影响，提升了安装质量，降低了制造难度。
虽然本申请披露如上，但并不局限于此。本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (25)

  1. 一种安装结构，用于医疗器械的摄像模组，所述摄像模组包括镜头和位于所述镜头的近端的图像采集装置，其特征在于，所述安装结构包括镜头基座、弹性部件和加压部件；
    所述镜头基座用于安装所述镜头；
    所述弹性部件设置在所述镜头基座和所述加压部件之间；
    所述加压部件与所述镜头基座可拆卸的连接，并向所述弹性部件施加朝向所述镜头基座方向的压力，以使所述弹性部件产生弹性变形后将所述图像采集装置压抵在所述镜头基座上。
  2. 根据权利要求1所述的安装结构，其特征在于，还包括抵接部件，所述抵接部件设置在所述镜头基座和所述弹性部件之间，并将弹性变形后的所述弹性部件的弹性力传递至所述图像采集装置，以使所述图像采集装置在受到所述抵接部件所施加的作用力后与所述镜头基座的近端抵接。
  3. 根据权利要求2所述的安装结构，其特征在于，所述弹性部件与所述抵接部件或所述加压部件连接。
  4. 根据权利要求3所述的安装结构，其特征在于，所述弹性部件与所述抵接部件或所述加压部件可转动地连接。
  5. 根据权利要求4所述的安装结构，其特征在于，所述弹性部件包括基部以及与所述基部连接的弹性臂，其中所述基部与所述加压部件或所述抵接部件可转动地连接，和/或，所述弹性臂与所述基部可转动地连接。
  6. 根据权利要求3所述的安装结构，其特征在于，所述弹性部件包括至少两个相对设置的弹性臂，至少两个所述弹性臂的一端与所述加压部件或所述抵接部件连接。
  7. 根据权利要求6所述的安装结构，其特征在于，至少两个所述弹性臂的一端相交形成交汇端，所述交汇端与所述加压部件或所述抵接部件可转动地连接。
  8. 根据权利要求7所述的安装结构，其特征在于，所述交汇端具有弧形凸起，所述加压部件或所述抵接部件具有与所述弧形凸起配合的弧形缺口，或者，所述交汇端具有薄壁结构，所述薄壁结构与所述加压部件或所述抵接部件连接。
  9. 根据权利要求6所述的安装结构，其特征在于，至少两个所述弹性臂的另一端相互独立地设置并形成自由端，或者至少一个所述弹性臂的另一端可转动地连接至另外的一个弹性臂。
  10. 根据权利要求6所述的安装结构，其特征在于，至少一部分所述弹性臂具有导向面，所述导向面用于使所述弹性臂能够相对于所接触的结构滑动。
  11. 根据权利要求3所述的安装结构，其特征在于，所述弹性部件包括基部和至少两组相对设置的弹性结构，每组所述弹性结构包括至少两个相对设置的弹性臂，且至少两组所述弹性结构与所述基部连接，所述基部与所述抵接部件或所述加压部件连接；其中，与所述基部连接的所述弹性结构中，至少有一组所述弹性结构与所述基部可转动地连接，和/或，所述基部与所述抵接部件或所述加压部件可转动地连接。
  12. 根据权利要求11所述的安装结构，其特征在于，所述基部具有弧形凸起，所述加压部件或所述抵接部件设置有与所述弧形凸起配合的弧形缺口，或者，所述基部具有薄壁结构，所述薄壁结构与所述加压部件或所述抵接部件连接。
  13. 根据权利要求11所述的安装结构，其特征在于，与所述基部连接的所述弹性结构中，至少有一组所述弹性结构通过薄壁结构或转轴与所述基部可转动地连接。
  14. 根据权利要求8或12所述的安装结构，其特征在于，所述弧形凸起的中心位于 一组镜头的对称线上。
  15. 根据权利要求1或2所述的安装结构，其特征在于，所述弹性部件包括至少两个相对设置的弹性臂，各个所述弹性臂上所形成的接触区域的中心连线的最大距离至少为所述摄像模组中的两个镜头的中心距离的0.5倍以上。
  16. 根据权利要求1或2所述的安装结构，其特征在于，所述弹性部件为由弹性材料制成的弹性体。
  17. 根据权利要求1或2所述的安装结构，其特征在于，所述镜头基座的近端设置有用于定位所述图像采集装置的定位凹槽。
  18. 根据权利要求1或2所述的安装结构，其特征在于，所述加压部件与所述镜头基座通过卡扣连接。
  19. 根据权利要求1或2所述的安装结构，其特征在于，还包括侧盖板，固定设置在所述镜头基座的两相对侧，以密封所述镜头基座的外周。
  20. 根据权利要求19所述的安装结构，其特征在于，还包括密封胶带，粘贴在所述侧盖板上。
  21. 一种摄像模组，用于医疗器械，其特征在于，包括一组镜头、图像采集装置以及如权利要求1-20中任一项所述的安装结构，所述一组镜头固定安装在所述镜头基座上，所述镜头基座的近端与所述图像采集装置相抵接。
  22. 根据权利要求21所述的摄像模组，其特征在于，所述图像采集装置包括图像采集电路板和设置在所述图像采集电路板上的图像采集芯片，所述图像采集电路板的一侧抵接在所述镜头基座的近端，所述图像采集芯片的数量为一个或多个。
  23. 一种内镜探头，用于医疗器械，其特征在于，包括安装座、后盖和如权利要求21或22所述的摄像模组，所述后盖外套在所述安装座和所述摄像模组上，所述摄像模组的一部分结构安装在所述安装座内。
  24. 根据权利要求23所述的内镜探头，其特征在于，所述内镜探头的外径满足以下要求：
    当所述图像采集装置中的图像采集芯片的数量为一个时，c＜D≤1.3c；
    当所述图像采集装置中的图像采集芯片的数量为多个时，1.7c＜D≤2.3c；
    其中：c为图像采集芯片的对角线长度，D为内镜探头的外径。
  25. 一种医疗器械，其特征在于，包括如权利要求23或24所述的内镜探头。
PCT/CN2022/131399 2021-11-16 2022-11-11 安装结构、摄像模组、内镜探头及医疗器械 WO2023088185A1 (zh)

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