Mounting structure, camera module, endoscope probe and medical instrument

Abstract

The present application relates to a kind of installation structure, camera module, endoscope probe and medical instrument, the installation structure includes lens base, elastic component and pressurizing component, the lens of camera module is fixedly arranged on lens base, elastic component is arranged between lens base and pressurizing component, pressurizing component is detachably connected with lens base, and the pressure towards lens base direction is applied to elastic component, so that elastic component generates elastic deformation and then the image acquisition device of camera module is pressed against on lens base.Such configuration, reliable connection between the image acquisition device of camera module and lens base is realized, the performance of camera module can be ensured, the outer diameter of camera module is reduced, and image quality can also be improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an installation structure, a camera module, an endoscope probe, and a medical device. Background Technology

[0002] Minimally invasive surgery is one of the most mature and widely used techniques in existing minimally invasive medical methods. Endoscopic minimally invasive surgery, in particular, overcomes the disadvantages of traditional surgery, such as large incisions and long recovery periods, greatly reducing patient suffering and gaining popularity. Currently, endoscopic minimally invasive surgery covers multiple departments and has become an indispensable medical tool in modern medicine, holding a very important position.

[0003] Endoscopes typically require the installation of one or more image acquisition chips. The circuit board of these chips is usually connected to the lens base using adhesive. However, controlling the amount of adhesive used is difficult; too little adhesive can cause the chip to detach, while too much can increase the module size. Furthermore, adhesive overflow poses a risk of affecting the camera module's performance, and the adhesive may become ineffective and cause malfunctions during repeated sterilization of medical devices. Additionally, the use of adhesive necessitates an outer edge around the lens base for bonding strength, but this increases the outer diameter of the camera module. Moreover, adhesive overflow frequently occurs in the bonding area, and the uncontrollable size of the overflow further increases the outer diameter of the camera module. Therefore, this method is detrimental to the miniaturization of medical devices. Moreover, the adhesive may contain micropores, which can negatively impact the pressure resistance and light-shielding performance of the medical device.

[0004] Therefore, there is an urgent need for an installation structure that can connect the image acquisition circuit board and the lens base without the use of glue. Summary of the Invention

[0005] The purpose of this invention is to provide an installation structure, a camera module, an endoscope probe, and a medical device to solve the problems existing in the installation of camera modules used in existing medical devices.

[0006] To achieve the above or other related objectives, the present invention provides an installation structure for a camera module of a medical device, the camera module including a lens and an image acquisition device located near the lens, the installation structure including a lens base, an elastic component and a pressure component;

[0007] The lens base is used to mount the lens;

[0008] The elastic component is disposed between the lens base and the pressure-applying component;

[0009] The pressurizing component is detachably connected to the lens base and applies pressure to the elastic component in the direction of the lens base, so that the elastic component undergoes elastic deformation and presses the image acquisition device against the lens base.

[0010] Optionally, the mounting structure further includes an abutting component disposed between the lens base and the elastic component, which transmits the elastic force of the elastic component after elastic deformation to the image acquisition device, so that the image acquisition device abuts against the proximal end of the lens base after being subjected to the force applied by the abutting component.

[0011] Optionally, the elastic member is connected to the abutting member or the pressurizing member.

[0012] Optionally, the elastic member is rotatably connected to the abutting member or the pressurizing member.

[0013] Optionally, the elastic member includes a base and an elastic arm connected to the base, wherein the base is rotatably connected to the pressure member or the abutment member, and / or the elastic arm is rotatably connected to the base.

[0014] Optionally, the elastic component includes at least two oppositely arranged elastic arms, one end of which is connected to the pressure component or the abutment component.

[0015] Optionally, at least two of the elastic arms intersect at one end to form a junction, the junction being rotatably connected to the pressurizing member or the abutting member.

[0016] Optionally, the confluence end has an arc-shaped protrusion, and the pressurizing component or the abutting component has an arc-shaped notch that mates with the arc-shaped protrusion; or, the confluence end has a thin-walled structure that is connected to the pressurizing component or the abutting component.

[0017] Optionally, the other ends of at least two of the elastic arms are independently provided and form free ends, or the other end of at least one of the elastic arms is rotatably connected to another elastic arm.

[0018] Optionally, at least a portion of the elastic arm has a guide surface for enabling the elastic arm to slide relative to the contacted structure.

[0019] Optionally, the elastic component includes a base and at least two sets of oppositely arranged elastic structures, each set of elastic structures including at least two oppositely arranged elastic arms, and at least two sets of elastic structures connected to the base, the base being connected to the abutting component or the pressurizing component; wherein, among the elastic structures connected to the base, at least one set of elastic structures is rotatably connected to the base, and / or, the base is rotatably connected to the abutting component or the pressurizing component.

[0020] Optionally, the base has an arcuate protrusion, and the pressure member or the abutting member is provided with an arcuate notch that mates with the arcuate protrusion; or, the base has a thin-walled structure, and the thin-walled structure is connected to the pressure member or the abutting member.

[0021] Optionally, among the elastic structures connected to the base, at least one set of the elastic structures is rotatably connected to the base via a thin-walled structure or a rotating shaft.

[0022] Optionally, the center of the arcuate protrusion is located on the line of symmetry of a set of lenses.

[0023] Optionally, the elastic component includes at least two oppositely arranged 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 between the two lenses in the camera module.

[0024] Optionally, the elastic component is an elastomer made of an elastic material.

[0025] Optionally, the near end of the lens base is provided with a positioning groove for positioning the image acquisition device.

[0026] Optionally, the pressurizing component is connected to the lens base by a snap-fit ​​connection.

[0027] Optionally, the mounting structure further includes side cover plates, which are fixedly disposed on two opposite sides of the lens base to seal the outer periphery of the lens base.

[0028] Optionally, the mounting structure also includes sealing tape, which is applied to the gaps in the side cover plate.

[0029] To achieve the above or other related objectives, the present invention also provides a camera module for medical devices, comprising a set of lenses, an image acquisition device, and any of the mounting structures described herein, wherein the set of lenses is fixedly mounted on the lens base, and the proximal end of the lens base abuts against the image acquisition device.

[0030] Optionally, 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 abutting against the proximal end of the lens base, and the number of the image acquisition chips is one or more.

[0031] Optionally, the image acquisition circuit board has a T-shaped structure or a U-shaped structure.

[0032] To achieve the above or other related objectives, the present invention also provides an endoscope probe for use in a medical device, comprising a mounting base, a rear cover, and a camera module as described in any one of the above, wherein the rear cover is fitted over the mounting base and the camera module, and a portion of the camera module is mounted within the mounting base.

[0033] Optionally, the outer diameter of the endoscope probe meets the following requirements:

[0034] When the number of image acquisition chips in the image acquisition device is one, c < D ≤ 1.3c;

[0035] When the number of image acquisition chips in the image acquisition device is multiple, 1.7c < D ≤ 2.3c;

[0036] Where: c is the diagonal length of the image acquisition chip, and D is the outer diameter of the endoscope probe.

[0037] To achieve the above or other related objectives, the present invention also provides a medical device comprising the endoscope probe described in any one of the claims.

[0038] The installation structure, camera module, endoscope probe, and medical device provided by this invention have at least one of the following advantages:

[0039] 1. The mounting structure includes an elastic component and a pressure component. The pressure component is detachably connected to the lens base. By applying a pre-pressure towards the lens base to the elastic component through the pressure component, the image acquisition device can be tightly pressed against the lens base by the elastic force, achieving a reliable connection between the image acquisition device and the lens base. This avoids the use of glue and solves many problems associated with using glue. Therefore, this invention can ensure the performance of the camera module and reduce the risk of failure during sterilization of medical devices. In particular, it can reduce the outer diameter of the camera module, making it easier to miniaturize medical devices. It can also ensure the pressure resistance and light-shielding performance of the camera module, reducing manufacturing difficulty. Specifically, this mounting structure can also achieve rapid installation of the image acquisition device and the lens base, and can use the elastic component to compensate for tolerance gaps in the installation direction, always ensuring pressure uniformity, thereby improving image quality.

[0040] 2. The mounting structure also includes an abutting component, which is disposed between the lens base and the elastic component and is used to transmit the elastic force of the elastic component after elastic deformation to the image acquisition device, so that the image acquisition device abuts against the proximal end of the lens base after being subjected to the force applied by the abutting component; this configuration increases the contact area, increases the preload, and reduces the local stress of the image acquisition chip, further ensuring image quality.

[0041] 3. By rotatably connecting the elastic component with one of the abutting component and the pressurizing component, the pre-pressure of the image acquisition chip can be self-balanced, which can avoid local stress on the image acquisition chip and avoid uneven deformation of the image acquisition chip caused by local stress, thereby ensuring image quality.

[0042] 4. The elastic component includes at least two oppositely arranged 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 between the two lenses in the camera module. This gives the elastic component a larger deformation compensation space and a wider range of pre-pressure adjustment, making it suitable for scenarios with one or more image acquisition chips.

[0043] 5. The outer diameter of the endoscope probe can be optimized according to the number and size of the image acquisition chips to minimize the outer diameter of the endoscope probe, which is more conducive to the miniaturization of medical devices. For example, when there is one image acquisition chip, the outer diameter D of the endoscope probe satisfies: c < D ≤ 1.3c, or when there are multiple image acquisition chips, such as 2, 3 or 4, the outer diameter D of the endoscope probe satisfies: 1.7c < D ≤ 2.3c. Attached Figure Description

[0044] The accompanying drawings are provided to better understand the invention and are not intended to unduly limit the scope of the invention. Wherein:

[0045] Figure 1 This is a schematic diagram of a medical device with an endoscope probe according to a preferred embodiment of the present invention;

[0046] Figure 2 This is a schematic diagram of the packaging structure of the endoscope probe according to a preferred embodiment of the present invention;

[0047] Figure 3 This is an exploded structural diagram of the endoscope probe according to a preferred embodiment of the present invention;

[0048] Figure 4 This is a schematic diagram of the camera module according to a preferred embodiment of the present invention;

[0049] Figure 5 yes Figure 4 The diagram shown is an exploded view of the camera module.

[0050] Figure 6 yes Figure 4 The diagram shows a cross-sectional view of the camera module.

[0051] Figure 7 yes Figure 5 The diagram shows the dissection of the camera module.

[0052] Figure 8 This is a schematic diagram of the structure of the pressurizing component with its own elastic component according to a preferred embodiment of the present invention;

[0053] Figure 9 This is a schematic diagram of the lens base according to a preferred embodiment of the present invention;

[0054] Figure 10 This is a schematic diagram of the front cross-sectional deformation of the camera module according to a preferred embodiment of the present invention;

[0055] Figure 11 This is a schematic diagram of the layout of the image acquisition chip relative to the tube body according to a preferred embodiment of the present invention;

[0056] Figure 12 This is a cross-sectional schematic diagram of the camera module according to Embodiment 1 of the present invention, wherein the elastic component and the pressurizing component are rotatably connected;

[0057] Figure 13 yes Figure 12 The diagram shows the dissection of the camera module.

[0058] Figure 14 yes Figure 12 The diagram shows a front cross-section of the camera module, in which the elastic component can rotate from the state shown in Figure (b) to the state shown in Figure (a);

[0059] Figure 15 This is a front cross-sectional schematic diagram of another camera module according to Embodiment 1 of the present invention, wherein the elastic component is rotatably connected to the pressure component through a thin-walled structure;

[0060] Figure 16 This is a front cross-sectional schematic diagram of another camera module according to Embodiment 1 of the present invention, wherein the elastic arm in the elastic component itself forms a thin-walled hinge point;

[0061] Figure 17 This is a cutaway schematic diagram of another camera module according to Embodiment 1 of the present invention, wherein the elastic component includes two sets of elastic structures, and the two sets of elastic structures are hinged to the base by a rotating shaft;

[0062] Figure 18 yes Figure 17 The diagram shows a cross-sectional view of another camera module, in which the elastic component can rotate from the state shown in Figure (b) to the state shown in Figure (a);

[0063] Figure 19 This is a front cross-sectional schematic diagram of another camera module according to Embodiment 1 of the present invention, wherein the elastic component includes two sets of elastic structures, and the two sets of elastic structures are hinged to the base through a thin-walled structure;

[0064] Figure 20 This is a front cross-sectional view of the camera module according to Embodiment 2 of the present invention, wherein the elastic component is connected to the abutting component;

[0065] Figure 21 This is a front cross-sectional schematic diagram of another camera module according to Embodiment 2 of the present invention, wherein the elastic component and the abutting component are rotatably connected;

[0066] Figure 22 This is a front cross-sectional schematic diagram of the camera module according to Embodiment 3 of the present invention, wherein the elastic component is an elastic body;

[0067] Figure 23 This is a cross-sectional schematic diagram of a camera module according to a preferred embodiment of the present invention, wherein the image acquisition circuit board has a T-shaped structure;

[0068] Figure 24 yes Figure 23 The diagram shown is an exploded view of the camera module.

[0069] [Explanation of reference numerals in the attached figures]:

[0070] 1. Endoscope probe; 2. Tube body; 3. Handle;

[0071] 11 camera modules;

[0072] 101 Image acquisition device; 1011 Image acquisition circuit board; 1012 Image acquisition chip;

[0073] 102 lenses;

[0074] 103 Lens base; 1031 Card slot; 1032 Positioning groove;

[0075] 104 Elastic component; 1041 Elastic arm; 1042 Guide surface; 1043 Intersection end; 1044 Thin-walled structure; 1045 Base; 1046 Thin-walled hinge point;

[0076] 105 - Pressurizing component; 1051 - Hook; 1052 - Arc-shaped notch; 1053 - Pressure head;

[0077] 106 Abutment Components;

[0078] 107 side cover plate;

[0079] 108 sealing tape;

[0080] 12 mounting brackets;

[0081] 13. Back cover;

[0082] 14 Lighting modules. Detailed Implementation

[0083] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the actual number, shape, and size of components in the actual implementation. In the actual implementation, the type, quantity, and proportion of each component can be arbitrarily changed, and the component layout may also be more complex.

[0084] Furthermore, while each embodiment described below possesses one or more technical features, this does not imply that users of the present invention must simultaneously implement all technical features in any embodiment, or can only separately implement some or all technical features in different embodiments. In other words, provided it is feasible, those skilled in the art can, based on the disclosure of the present invention and depending on design specifications or implementation requirements, selectively implement some or all technical features in any embodiment, or selectively implement a combination of some or all technical features in multiple embodiments, thereby increasing the flexibility in implementing the present invention.

[0085] As used herein, the singular forms “a,” “an,” and “the” include plural objects, and the plural form “a plurality” includes two or more objects, unless otherwise expressly indicated. As used herein, the term “or” is generally used to include the meaning of “and / or,” unless otherwise expressly indicated, and the terms “install,” “connect,” and “link” should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Connections can be mechanical or electrical. Connections can be direct or indirect through an intermediate medium, and can represent internal communication between two elements or an interaction between two elements. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0086] To make the objectives, advantages, and features of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clearly illustrate the objectives of the embodiments of the present invention. The same or similar reference numerals in the drawings represent the same or similar parts.

[0087] In this article, the terms “proximal” and “distal” refer to the relative orientation, position, and direction of the components or movements relative to each other from the perspective of the physician using the medical device. Although “proximal” and “distal” are not restrictive, “proximal” usually refers to the end of the medical device that is closer to the physician during normal operation, while “distal” usually refers to the end that first enters the patient’s body.

[0088] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments. Unless otherwise specified, the following embodiments and features can complement or combine with each other.

[0089] refer to Figure 1 and Figure 2 This invention provides a medical device including an endoscope probe 1 located at a distal end. The medical device also includes a tube 2 and a handle 3. The endoscope probe 1 is connected to the distal end of the tube 2, and the proximal end of the tube 2 is connected to the handle 3. An external wire passes through the tube 2 and the handle 3 and is connected to the endoscope probe 1. The external wire may be, for example, a wire for providing current or a wire for transmitting signals.

[0090] refer to Figure 3 The endoscope probe 1 includes a camera module 11, a mounting base 12, and a rear cover 13. The rear cover 13 is fitted over the mounting base 12 and the camera module 11. A portion of the camera module 11 is installed within the mounting base 12. The rear cover 13 circumferentially encloses the mounting base 12 and the camera module 11. The rear cover 13 is fixedly connected to the mounting base 12, for example, by adhesive bonding. The mounting base 12 and the rear cover 13 can be integrally formed or manufactured separately and then assembled. Preferably, the mounting base 12 and the rear cover 13 are manufactured separately and then assembled. This reduces the processing difficulty of the mounting base 12 and decreases its size. The mounting base 12 typically includes multiple axially through mounting slots, which are independent of each other and do not interfere with each other. The camera module 11 is installed in the corresponding mounting slot.

[0091] The endoscope probe 1 may further include an illumination module 14, which is fixedly mounted on the mounting base 12, such as in a corresponding mounting slot. The illumination module 14 and the camera module 11 are respectively mounted in different mounting slots of the mounting base 12, and do not interfere with each other. The illumination module 14 provides illumination for the image acquisition by the camera module 11. As an example, the illumination module 14 includes two lighting lamps (not labeled), which are symmetrically mounted on the mounting base 12. The illumination method of the illumination module 14 is generally a cold light source combined with a light guide beam, or LED illumination.

[0092] Furthermore, in order to solve the problems existing in the connection between the image acquisition device and the lens base in existing medical devices, this embodiment of the invention also provides an installation structure suitable for camera module 11, which can achieve a tight and reliable connection between the image acquisition device and the lens base without the use of glue, thereby solving some of the problems existing in the existing method of using glue to bond the lens base and the image acquisition device.

[0093] refer to Figures 4 to 24 The camera module 11 includes a mounting structure, an image acquisition device 101, and a set of lenses 102. The image acquisition device 101 is located near the end of the set of lenses 102. The mounting structure includes a lens base 103, an elastic component 104, and a pressure component 105. The set of lenses 102 is fixedly mounted on the lens base 103, typically using adhesive to bond the lenses 102 to the lens base 103, but is not limited to adhesive bonding. The near end of the lens base 103 abuts against the image acquisition device 101. Here, "abuts" means that the mounting plane of the near end of the lens base 103 is tightly and reliably fitted with the image acquisition device 101 to ensure image quality. Furthermore, the elastic member 104 is disposed between the lens base 103 and the pressure member 105; the pressure member 105 is detachably connected to the lens base 103 and applies pressure to the elastic member 104 in the direction of the lens base 103, causing the elastic member 104 to undergo elastic deformation; the elastic member 104, after elastic deformation, presses the image acquisition device 101 against the lens base 103, making the image acquisition device 101 and the lens base 103 fit tightly together. Therefore, the elastic member 104 is deformed under pressure during installation, thereby realizing the installation of the image acquisition device 101.

[0094] The image acquisition device 101 works in conjunction with a set of lenses 102 to acquire images of a designated area. The lenses 102 project the light image of the observed object onto the image acquisition device 101. The image acquisition device 101 acquires the image information of the object, processes the image information accordingly, and transmits it. Specifically, the image acquisition device 101 includes an image acquisition circuit board 1011 and an image acquisition chip 1012 disposed on the image acquisition circuit board 1011. The image acquisition chip 1012 acquires image information of the designated area, and the image acquisition circuit board 1011 processes the image information accordingly and transmits it. The number of image acquisition chips 1012 can be one or more, or at least two. The shape of the image acquisition circuit board 1011 is not particularly required; for example, it can be... Figures 4 to 21 The U-shaped structure shown, or Figure 23 and Figure 24The T-shaped structure shown may be another shape. The shape of the image acquisition chip 1012 is also not limited, and may include, but is not limited to, the rectangle shown in each figure.

[0095] When the above-described mounting structure is applied, as long as the pre-pressure is applied to the elastic member 104 in the direction of the lens base 103 by the pressure member 105, the image acquisition device 101 can be reliably pressed against the near end of the lens base 103 by the elastic force, thereby realizing a reliable and tight mounting connection between the image acquisition device 101 and the lens base 103, thus avoiding the use of glue and solving many problems caused by the use of glue in the past.

[0096] Specifically, the mounting structure provided by this invention is used to mount the image acquisition device 101 and a set of lenses 102. After mounting these components, the performance of the camera module 11 can be ensured, and the risk of camera module 11 failure during sterilization of medical devices can be reduced. In particular, it can reduce the outer diameter of the camera module 11, thereby reducing the outer diameter of the endoscope probe 1, which is beneficial for miniaturization of medical devices. In addition, since the use of glue is avoided, this mounting structure can also ensure the pressure resistance and light-shielding performance of the camera module 11 and reduce manufacturing difficulty. Furthermore, this mounting structure can also realize quick installation between the image acquisition device 101 and the lens base 103, reducing installation difficulty and simplifying the installation process. In addition, in order to solve the problems caused by the use of glue, the prior art has used screws to lock the image acquisition device 101 and the lens base 103. However, the problem with screw locking is uneven pressure, which makes it difficult to guarantee image quality. This invention can use the elastic component 104 to achieve tolerance clearance compensation in the mounting direction, so that the pressure on the image acquisition chip 1012 remains uniform, thereby improving image quality.

[0097] This application does not limit the method of detachable connection between the pressure-applying component 105 and the lens base 103. As an example, the pressure-applying component 105 and the lens base 103 are connected by a snap-fit. In the snap-fit ​​connection method, the structure is simple, disassembly and assembly are convenient, and it does not easily increase the outer diameter of the camera module 11. Specifically, as... Figure 8 and Figure 9 As shown, the pressure-applying component 105 has a hook 1051, and the lens base 103 has a slot 1031. The hook 1051 and the slot 1031 are engaged to achieve a fixed connection between the lens base 103 and the pressure-applying component 105. In other embodiments, the lens base 103 may be threadedly connected to the pressure-applying component 105.

[0098] Continue to refer to Figure 9The lens base 103 may have a positioning groove 1032 for positioning the image acquisition device 101 at its proximal end. The number of positioning grooves 1032 is determined according to the number of image acquisition chips 1012, with one positioning groove 1032 positioning one image acquisition chip 1012. Preferably, the shape of the positioning groove 1032 matches the shape of the image acquisition chip 1012.

[0099] In a preferred embodiment, the mounting structure further includes an abutment member 106, which is disposed between the lens base 103 and the elastic member 104. The abutment member 106 transmits the elastic force of the elastic member 104 after elastic deformation to the image acquisition device 101, ensuring that the image acquisition device 101 fits tightly against the proximal end of the lens base 103 after being subjected to pressure from the abutment member 106. The abutment member 106 can be a flat, block-shaped structure with a large contact area. Therefore, the abutment member 106 can provide a larger contact area, increase pre-pressure, and reduce local stress on the image acquisition chip 1022, further ensuring image quality.

[0100] As an example, such as Figure 23 and Figure 24 As shown, both the abutting member 106 and the pressurizing member 105 have a central hole (not labeled) that allows the image acquisition circuit board 1011 to pass through. In this case, the image acquisition circuit board 1011 can be designed as a T-shaped structure, allowing the proximal end of the image acquisition circuit board 1011 to pass sequentially through the abutting member 106 and the pressurizing member 105. Alternatively, in other embodiments, see [reference needed]. Figure 5 The abutting component 106 and the pressurizing component 105 do not have a central hole. Instead, the abutting component 106 and the pressurizing component 105 are placed between the image acquisition circuit board 1011. In this case, the image acquisition circuit board 1011 can be designed as a U-shaped structure, and the abutting component 106 and the pressurizing component 105 are placed in the U-shaped groove of the image acquisition circuit board 1011.

[0101] Further, refer to Figure 4 and Figure 5 The mounting structure also includes side cover plates 107, which are fixedly disposed on two opposite sides of the lens base 103 to seal the outer periphery of the lens base 103, ensuring light-blocking and pressure-resistant performance. Furthermore, the mounting structure also includes sealing tape 108, which is adhered to the side cover plates 107. The sealing tape 108 mainly covers the gaps on the side cover plates 107, and does not necessarily need to cover the entire side cover plate 107. This is because there may be gaps at the connection point between the side cover plate 107 and the lens base 103, causing light transmission; therefore, the sealing tape 108 is needed to seal the light-transmitting areas. In addition, the side cover plate 107 is an insulator, and both the sealing tape and the side cover plate 107 are made of opaque materials.

[0102] In one embodiment, the elastic member 104 is connected to the pressure member 105, for example... Figures 5 to 19 As shown. The elastic component 104 and the pressure component 105 can be integrally molded or separately molded and then assembled. "Integral molding" here refers to the process of integrally molding the pressure component 105 with its own elastic component 104, or the elastic component 104 with its own pressure component 105. "Separate molding" here refers to the process of separately manufacturing the elastic component 104 and the pressure component 105, and then connecting them together in a certain way.

[0103] In another embodiment, the elastic member 104 is connected to the abutment member 106, for example... Figure 20 and Figure 21 As shown. The elastic component 104 and the abutment component 106 can be integrally molded or separately molded and then assembled. Similarly, "integral molding" here means that during the processing, the abutment component 106 with its own elastic component 104 is integrally molded, or the elastic component 104 with its own abutment component 106 is integrally molded. "Separate molding" here means that during the processing, the elastic component 104 and the abutment component 106 are manufactured separately, and then the elastic component 104 and the abutment component 106 are connected together in a certain way.

[0104] As an example, see Figures 5 to 8 The elastic component 104 is connected to the pressure component 105, and the elastic component 104 can be integrally formed with the pressure component 105, such as by integral forming through mold processing. Specifically, the elastic component 104 includes at least two oppositely arranged elastic arms 1041, one end of which is connected to the pressure component 105, and the other end is a free end. The free ends of the at least two elastic arms 1041 are used to directly contact the back of the image acquisition circuit board 1011 or directly contact the abutment component 10. Each elastic arm 1041 can generate elastic deformation to compensate for tolerance gaps in the mounting direction.

[0105] Preferably, at least a portion of the elastic arm 1041 is provided with a guide surface 1042, which is used to allow the elastic arm 1041 to slide more smoothly relative to the structure in contact with it (such as the abutment member 106, the pressure member 105, or the image acquisition circuit board 1011), reducing the resistance of elastic compensation. At least two elastic arms 1041 are preferably symmetrically distributed with respect to the line of symmetry of a set of lenses 102. Therefore, during installation, the elastic arm 1041 can deform to compensate for the tolerance gap between the image acquisition device 101 and the lens base 103 in the installation direction, thereby ensuring that the image acquisition circuit board 1011 fits well against the mounting plane near the proximal end of the lens base 103.

[0106] For example, refer to Figure 10 ,exist Figure 10 In Figure (a), the two elastic arms 1041 contact the abutting member 106 and undergo elastic deformation, and the elastic arms 1041 can be adjusted in position at any time to adapt to the gap in the installation direction, for example in... Figure 10 In (b), the elastic arm 1041 can slide from position C1 in Figure (a) to position C2 in Figure (b) (the dashed line represents the elastic arm 1041 after sliding), thereby automatically balancing the preload and effectively ensuring image quality.

[0107] Continue to refer to Figure 10 To ensure that the elastic member 104 is compressed during installation, d < s must be satisfied. Here, d is the vertical distance from the fixed end of the elastic member 104 to the structure in contact with it, and s is the vertical distance from the fixed end of the elastic member 104 to the farthest point on its free end. In one embodiment, the distance from the front plane of the pressure member 105 to the rear plane of the abutment member 106 is d, and the distance from the front plane of the pressure member 104 to the farthest point in front of the elastic arm 1041 is s. This configuration ensures that the elastic arm 1041 is in an elastically deformed state during installation, achieving elastic compensation. Conversely, when the elastic member 104 is connected to the abutment member 106, the same condition is met to ensure d < s, causing the elastic member 104 to be compressed and generate pre-pressure during installation.

[0108] Furthermore, 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 between the two lenses. That is, if the center distance between the two lenses in a set of lenses 102 is p, and the maximum span between the elastic arm 1041 and the contact area of ​​the abutment member 106 or circuit board is q, then q > 0.5p. In this case, the elastic member 104 has a larger deformation compensation space, a wider range of pre-pressure adjustment, and can be applied to scenarios with one or more image acquisition chips 1012.

[0109] To minimize the size of the endoscope probe 1, this application also optimizes the outer diameter of the endoscope probe 1, which in turn optimizes the size of the tube 2. The outer diameter of the tube 2 is typically the same as the outer diameter of the endoscope probe 1. (Continue to reference...) Figure 11 The outer diameter of the endoscope probe 1 meets the following requirements:

[0110] When the number of image acquisition chips 1012 is one, c < D ≤ 1.3c;

[0111] When there are multiple image acquisition chips 1012, 1.7c < D ≤ 2.3c;

[0112] Where: c is the diagonal length of the image acquisition chip, and D is the outer diameter of the endoscope probe.

[0113] It should be understood that Figure 11 Although only the case of two image acquisition chips 1012 is illustrated, the above relationship "1.7c < D ≤ 2.3c" also applies to the case of three, four, or more image acquisition chips 1012. For example, when there are three image acquisition chips 1012, the center line connecting the three image acquisition chips 1012 forms a triangle in the end-face projection; when there are four image acquisition chips 1012, the center line connecting the four image acquisition chips 1012 forms a quadrilateral, such as a rectangle, in the end-face projection. Furthermore, the external shape of the image acquisition chip 1012 includes, but is not limited to, a rectangle. Additionally, the dimension c above should be understood as the length of the line connecting the two farthest points on the cross-section of the image acquisition chip 1012.

[0114] More preferably, the elastic component 104 is rotatably connected to the abutment component 106 or the pressure component 105, thereby achieving self-balancing of the pre-pressure of multiple image acquisition chips 1012, which can avoid local stress on a single image acquisition chip 1012 and avoid uneven deformation of the image acquisition chip 1012 caused by local stress, thereby improving image quality.

[0115] More specifically, when the elastic member 104 is entirely rotatable, if there is a significant difference in the positive pressure exerted by the elastic member 104 on the multiple image acquisition chips 1012, the elastic member 104 can rotate relative to the pressure-applying member 105 or the abutment member 106 connected to it, thereby achieving an automatic pre-pressure balancing effect and ensuring the quality of image acquisition. More preferably, the elastic member 104 itself can also rotate, such as by rotating relative to each other between the elastic arms, or by rotating relative to the base connected to it. Then, if there is a significant difference in the positive pressure exerted by the elastic member 104 on the multiple image acquisition chips 1012, a single elastic arm 1041 can also rotate, further achieving an automatic pre-pressure balancing effect and ensuring the quality of image acquisition.

[0116] To more clearly explain the installation structure provided by the present invention, several specific preferred embodiments are listed below to further illustrate the connection method between the elastic component and the pressure component or the abutment component, but the following description is not intended to limit the present application.

[0117] Example 1

[0118] In this embodiment, the elastic member 104 is connected to the pressure member 105. One end of the elastic member 104 is connected to the pressure member 105 to form a fixed end, and the other end of the elastic member 104 is a free end to contact the abutment member 106 or directly contact the back of the image acquisition circuit board 1011.

[0119] As an example, see Figures 12 to 14 The elastic component 104 is connected to the pressure-applying component 105, and the two can be separately formed. At least two elastic arms 1041 intersect at one end to form a junction end 1043, which is rotatably connected to the pressure-applying component 105. In one specific embodiment, the junction end 1043 has an arc-shaped protrusion, and the pressure-applying component 105 has an arc-shaped notch 1052 that mates with the arc-shaped protrusion. Preferably, the center of the arc-shaped protrusion is located on the line of symmetry of a set of lenses 102, that is, the center of the arc-shaped notch 1052 is located on the line of symmetry of a set of lenses 102. In this way, the elastic component 104 can more evenly apply pre-pressure to the image acquisition chip 1012, thereby ensuring stable image output quality.

[0120] For more detailed information, please refer to [link / reference]. Figure 14 ,exist Figure 14 In Figure (b), the two elastic arms 1041 contact the abutment member 106 and undergo elastic deformation, and the entire elastic member 104 is rotatable relative to the pressure member 105 to adjust the contact position at any time to accommodate gaps in the installation direction, for example in... Figure 14 In Figure (a), the elastic member 104 can rotate from the position shown in Figure (b) to the position shown in Figure (a), thereby automatically balancing the preload and effectively ensuring image quality.

[0121] As an example, see Figure 15 The elastic component 104 is connected to the pressure component 105, and the two can be integrally molded. At least two elastic arms 1041 intersect at one end to form a junction end 1043, and the junction end 1043 has a thin-walled structure 1044. The thin-walled structure 1044 is fixedly connected to the pressure component 105. The thin-walled structure 1044 allows the entire elastic component 104 to rotate relative to the pressure component 105. Here, the thin-walled structure 1044 refers to a structure that is smaller in size than the rest of the component, making it easy to twist and deform, but also less prone to breakage, exhibiting good toughness. For example, a high-molecular-weight material with good toughness, such as PP (polypropylene), can be used to prepare the thin-walled structure 1044. Furthermore, the thin-walled structure 1044 is a sheet-like structure, and its width b is preferably within 0.5 mm.

[0122] In this embodiment, the other ends of at least two elastic arms 1041 can be independently configured to form free ends. In other embodiments, 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 the other end of at least one elastic arm 1041 connected to the pressurizing member 105. Preferably, the other elastic arm 1041 is rotatably connected to the other end of the at least one elastic arm 1041 connected to the pressurizing member 105. In this case, it can be understood that the other elastic arm 1041 constitutes the free end of the elastic member 104 for contact with other structures, such as the abutment member 106 or the image acquisition circuit board 1011. Furthermore, the ends of at least two elastic arms 1041 may also be connected to the pressurizing member 105 independently without intersecting.

[0123] As an example, see Figure 16 The elastic component 104 is connected to the pressure component 105. At least two elastic arms 1041 have one end independently disposed and fixedly connected to the pressure component 105, and the other ends of at least two elastic arms 1041 are rotatably connected to another elastic arm 1041. That is, the other ends of the two elastic arms 1041 connected to the pressure component 105 are rotatably connected to both ends of another elastic arm 1041. The other elastic arm 1041 not connected to the pressure component 105 contacts the abutment component 106 or the image acquisition circuit board 1011. In a specific embodiment, the two elastic arms 1041 connected to the pressure component 105 form a rotatable hinge point with the other elastic arm 1041 through a thin-walled structure 1044. This can be understood as the two elastic arms 1041 connected to the pressure component 105 and the other elastic arm 1041 being an integrally formed structure, stretched at the position requiring rotation to form the thin-walled structure 1044, allowing the two adjacent elastic arms 1041 to rotate relative to each other. Of course, in other embodiments, the two elastic arms 1041 connected to the pressurizing member 105 may be hinged to another elastic arm 1041 via a pivot.

[0124] The elastic component 104 described above mainly has two elastic arms 1041, while in other configurations, the elastic component 104 may have more elastic arms 1041. Specifically, the elastic component 104 includes at least two sets of oppositely arranged elastic structures, each set of elastic structures including at least two oppositely arranged elastic arms 1041. Each set of elastic structures is connected as a whole to the pressurizing component 105, preferably in a rotatable manner.

[0125] In a preferred embodiment, the elastic member 104 further includes a base, at least two sets of the elastic structures are connected to the base, and the base is connected to the abutting member 106 or the pressurizing member 105. Preferably, the base is rotatably connected to the pressurizing member 105.

[0126] As an example, see Figure 17 The elastic component 104 includes a base 1045 and two sets of elastic structures. At least one set of elastic structures connected to the base 1045 is rotatably connected to the base 1045, such as by a hinged connection forming a thin-walled hinge point 1046. Furthermore, the base 1045 can also be rotatably connected to the pressure component 105. For example, if the base 1045 has an arc-shaped protrusion, the pressure component 105 is provided with an arc-shaped notch 1052 that mates with the arc-shaped protrusion.

[0127] For more detailed information, please refer to [link / reference]. Figure 18 ,exist Figure 18 In Figure (b), four elastic arms 1041 contact the abutment member 106 and undergo elastic deformation, and the entire elastic member 104 is rotatable relative to the pressure member 105 to adjust the contact position at any time to accommodate gaps in the installation direction, for example in... Figure 18 In Figure (a), the elastic member 104 can rotate from the position shown in Figure (b) to the position shown in Figure (a), thereby automatically balancing the preload and effectively ensuring image quality.

[0128] The base 1045 may also be configured to have a thin-walled structure 1044, through which the base 1045 rotates relative to the pressurizing member 105 connected to the base 1045. As an example, refer to Figure 19 The elastic component 1044 includes a base 1045 and two sets of elastic structures, both sets of elastic structures being connected to the base 1045 via the thin-walled structure 1044. Furthermore, the base 1045 is also connected to the pressure component 105 via the thin-walled structure 1044.

[0129] It should be understood that when the elastic component 104 employs at least two sets of elastic structures, applying pressure to one or more image acquisition chips 1012 through more elastic arms 1041 results in more uniform pressure and can further improve image quality.

[0130] Example 2

[0131] The main difference between Embodiment 2 and Embodiment 1 is that the elastic member 104 is connected to the abutting member 106. One end of the elastic member 104 is connected to the abutting member 106 to form a fixed end, while the other end of the elastic member 104 is a free end to contact the pressure member 105. The connection method between the elastic member 104 and the pressure member 105 provided in the above embodiments also applies to the connection between the elastic member 104 and the abutting member 106. For simplicity, the connection method between the elastic member 104 and the abutting member 106 can be referred to the connection method between the elastic member 104 and the pressure member 105, which can be found in the above embodiments and will not be described in detail here.

[0132] As in one embodiment, reference Figure 20 The elastic member 104 is connected to the abutting member 106, and the two can be integrally formed. At least two elastic arms 1041 intersect at one end to form a junction end 1043, and the junction end 1043 has a thin-walled structure 1044. The thin-walled structure 1044 is fixedly connected to the abutting member 106. The thin-walled structure 1044 allows the entire elastic member 104 to rotate relative to the abutting member 106.

[0133] As in another embodiment, reference Figure 21 The elastic member 104 is connected to the abutting member 106, and the two can be separately formed. At least two elastic arms 1041 intersect at one end to form a junction end 1043, which is rotatably connected to the abutting member 106. In one specific embodiment, the junction end 1043 has an arc-shaped protrusion, and the abutting member 106 has an arc-shaped notch that mates with the arc-shaped protrusion.

[0134] Example 3

[0135] The difference between Embodiment 3 and Embodiments 1 and 2 is that the elastic component 104 in this embodiment is an elastomer made of an elastic material, which compensates for the installation gap. This elastomer can be an elastomer structure such as rubber or foam; the specific material is not limited.

[0136] refer to Figure 22 The pressurizing component 105 may be provided with a protruding pressure head 1053, which is used to directly press against the elastic component 104 in the form of an elastomer. In one embodiment, the elastomer is connected to the pressurizing component 105 or the abutment component 106. In other embodiments, the elastomer is not connected to either the pressurizing component 105 or the abutment component 106.

[0137] Regarding the above embodiments, it should be further noted that when the elastic component 104 is constructed using the form of an elastic arm 1041, the elastic component 104 as a whole can adopt a spring sheet structure, which has good elasticity, simple structure, and is easy to manufacture. Of course, the structure of the elastic component 104 is not limited to a spring sheet or an elastic body, but can also be other structures capable of elastic deformation, such as a disc spring or a helical spring. In addition, the elastic component is not limited to being rotatably connected to the abutment component or the pressure component through an arc-shaped protrusion; this is only an optional implementation and does not constitute a limitation of the present invention.

[0138] In summary, the mounting structure provided by this invention achieves rapid installation and fixation of the image acquisition device and tolerance clearance compensation by employing elastic and pressure-applying components. This maintains a constant pre-pressure, avoids the use of adhesive, reduces the outer diameter of the camera module, and improves the reliability and compactness of the camera module installation. Furthermore, by using arc-shaped, pivot-type, or thin-walled hinge structures, the elastic components achieve self-balancing of the pre-pressure on multiple image acquisition chips, avoiding the adverse effects of localized stress on image quality. Additionally, it avoids the adverse effects of uneven adhesive thickness and pores on the pressure resistance and light-shielding performance of the camera module, improving installation quality and reducing manufacturing difficulty.

[0139] While the present invention has been disclosed above, it is not limited thereto. Those skilled in the art can make various modifications and variations to the present invention without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the present invention and its equivalents, the present invention also intends to include such modifications and variations.

Claims

1. A camera module for use in medical devices, characterized in that, It includes a set of lenses, an image acquisition device, and a mounting structure; the mounting structure includes a lens base, an elastic component, an abutting component, and a pressure component; the set of lenses is fixedly mounted on the lens base, and the proximal end of the lens base abuts against the image acquisition device; The image acquisition device includes an image acquisition circuit board and a plurality of image acquisition chips disposed on the image acquisition circuit board, with one side of the image acquisition circuit board abutting against the proximal end of the lens base; The elastic component is disposed between the lens base and the pressure-applying component; The abutting component is disposed between the lens base and the elastic component; The elastic member is rotatably connected to the abutting member or the pressurizing member; the elastic member includes at least two opposing elastic arms; The pressurizing component is detachably connected to the lens base and applies pressure to the elastic component in the direction of the lens base to cause the elastic component to undergo elastic deformation. The abutting component transmits the elastic force of the elastically deformed elastic component to the image acquisition device so that the image acquisition device presses against the proximal end of the lens base after being subjected to the force applied by the abutting component.

2. The camera module according to claim 1, characterized in that, The elastic member further includes a base connected to the elastic arm, wherein the base is rotatably connected to the pressure member or the abutment member, and / or the elastic arm is rotatably connected to the base.

3. The camera module according to claim 1, characterized in that, At least two of the elastic arms are connected at one end to the pressurizing member or the abutting member.

4. The camera module according to claim 2, characterized in that, At least two of the elastic arms intersect at one end to form a junction, which is rotatably connected to the pressurizing member or the abutting member.

5. The camera module according to claim 4, characterized in that, The confluence end has an arc-shaped protrusion, and the pressurizing component or the abutting component has an arc-shaped notch that mates with the arc-shaped protrusion; or, the confluence end has a thin-walled structure that is connected to the pressurizing component or the abutting component.

6. The camera module according to claim 3, characterized in that, The other ends of at least two of the elastic arms are independently provided and form free ends, or the other end of at least one of the elastic arms is rotatably connected to another elastic arm.

7. The camera module according to claim 3, characterized in that, At least a portion of the elastic arm has a guide surface for enabling the elastic arm to slide relative to the contacted structure.

8. The camera module according to claim 1, characterized in that, The elastic component further includes a base and at least two sets of oppositely arranged elastic structures. Each set of elastic structures includes at least two oppositely arranged elastic arms, and at least two sets of elastic structures are connected to the base. The base is connected to the abutting component or the pressurizing component. Among the elastic structures connected to the base, at least one set of elastic structures is rotatably connected to the base, and / or the base is rotatably connected to the abutting component or the pressurizing component.

9. The camera module according to claim 8, characterized in that, The base has an arc-shaped protrusion, and the pressure member or the abutting member is provided with an arc-shaped notch that mates with the arc-shaped protrusion; or, the base has a thin-walled structure, and the thin-walled structure is connected to the pressure member or the abutting member.

10. The camera module according to claim 8, characterized in that, In the elastic structures connected to the base, at least one set of the elastic structures is rotatably connected to the base via a thin-walled structure or a rotating shaft.

11. The camera module according to claim 5 or 9, characterized in that, The center of the arc-shaped protrusion is located on the line of symmetry of a set of lenses.

12. The camera module according to claim 1, characterized in that, 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 between the two lenses in the camera module.

13. The camera module according to claim 1, characterized in that, The elastic component is an elastomer made of elastic material.

14. The camera module according to claim 1, characterized in that, The near end of the lens base is provided with a positioning groove for positioning the image acquisition device.

15. The camera module according to claim 1, characterized in that, The pressurizing component is connected to the lens base by a snap-fit.

16. The camera module according to claim 1, characterized in that, It also includes side cover plates, which are fixedly disposed on two opposite sides of the lens base to seal the outer periphery of the lens base.

17. The camera module according to claim 16, characterized in that, It also includes sealing tape, which is affixed to the side cover plate.

18. The camera module according to claim 1, characterized in that, The image acquisition circuit board has a T-shaped or U-shaped structure.

19. An endoscope probe for use in medical devices, characterized in that, It includes a mounting base, a back cover, and a camera module as described in any one of claims 1-18, wherein the back cover is fitted over the mounting base and the camera module, and a portion of the camera module is mounted within the mounting base.

20. The endoscopic probe according to claim 19, characterized in that, The outer diameter of the endoscope probe must meet the following requirements: When the number of image acquisition chips in the image acquisition device is one, c < D ≤ 1.3c; When the number of image acquisition chips in the image acquisition device is multiple, 1.7c < D ≤ 2.3c; Where: c is the diagonal length of the image acquisition chip, and D is the outer diameter of the endoscope probe.

21. A medical device, characterized in that, Including the endoscope probe as described in claim 19 or 20.

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