Camera device and endoscope system

Abstract

The utility model provides a camera device and an endoscope system. The camera device comprises a handheld mechanism, a connecting mechanism and a focusing mechanism. An image sensor is arranged in the handheld mechanism; the connecting mechanism is used for being detachably connected with the hard mirror body. And the focusing mechanism is connected between the connecting mechanism and the handheld mechanism. The focusing mechanism comprises a fixing piece, a lens assembly and a first operation piece. The fixing piece is fixedly connected with the handheld mechanism and the connecting mechanism; the lens assembly comprises a lens shell and a lens arranged in the lens shell, the lens assembly and the image sensor are coaxially arranged with the first axis as the axis, and the lens assembly can move along the first axis to achieve focusing; the first operating member is rotatable about a first axis. The focusing mechanism is configured to convert rotational motion of the first operating member into movement of the lens assembly along the first axis. The lens assembly can be driven to translate along the first axis by rotating the first operating piece, and then focusing can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, and in particular to a camera device and an endoscope system. Background Art

[0002] Rigid endoscopic surgery is a new minimally invasive method. Compared with traditional surgery, it has the advantages of less surgical trauma, faster recovery, less pain, smaller incision and less scar. Rigid endoscopic surgery requires the use of a camera device, which can be connected to the rigid endoscope through a connecting mechanism, and an image sensor can be set in the camera device.

[0003] When the camera device is in use, the hard lens body often needs to be inserted into the human body for observation. Due to the complex internal structure of the human body and the different requirements in different use cases, medical workers hope that the camera device can be easily focused when in use to meet the needs of different application scenarios. Therefore, a camera device that is easy to focus is urgently needed. Utility Model Content

[0004] In order to at least partially solve the problems existing in the prior art, according to one aspect of the utility model, a camera device is provided. The camera device includes a handheld mechanism, a connecting mechanism and a focusing mechanism. An image sensor is arranged in the handheld mechanism; the connecting mechanism is used to detachably connect a hard lens body; and the focusing mechanism is connected between the connecting mechanism and the handheld mechanism. The focusing mechanism includes a fixing member, a lens assembly and a first operating member. The fixing member fixedly connects the handheld mechanism and the connecting mechanism; the lens assembly includes a lens housing and a lens arranged inside the housing, the lens assembly and the image sensor are coaxially arranged with a first axis as the axis, and the lens assembly is movable along the first axis to achieve focusing; the first operating member is rotatable around the first axis. The focusing mechanism is configured to convert the rotational movement of the first operating member into movement of the lens assembly along the first axis.

[0005] The camera device provided by the utility model can drive the lens assembly to translate along the first axis when the first operating member is rotated, thereby achieving focusing. Since the focusing mechanism is connected between the connecting mechanism and the handheld mechanism, by setting the first operating member to be rotatable around the first axis, it is possible to avoid interference with the connecting mechanism and the handheld mechanism when operating the first operating member. In addition, by rotating the first operating member to drive the lens assembly to move along the first axis, the accuracy of the movement of the lens assembly along the first axis can be higher, and the imaging clarity can be adjusted more accurately. Moreover, since the first operating member only rotates around the first axis, the distance from the first operating member to the handheld mechanism along the first axis can remain unchanged, so that the first operating member can be designed to always be within the range that can be touched by the fingers of the user's hand holding the handheld mechanism, thereby providing the possibility for the user to focus with one hand.

[0006] Exemplarily, one of the fixing member and the lens housing is provided with a first slide groove, and the other is provided with a first slider, and the first slider slides in the first slide groove so that the lens assembly can move along the first axis.

[0007] Exemplarily, the first slide groove is parallel to the first axis.

[0008] Exemplarily, the fixing member is sleeved outside the lens assembly and is provided with a second slide groove extending around the first axis. The first operating member is transmission-connected with the lens housing through the second slide groove to drive the lens assembly to move along the first axis.

[0009] Exemplarily, the first operating member is provided with a second sliding block, the lens housing is provided with a third sliding groove extending spirally around the first axis or extending obliquely relative to the first axis, and the second sliding block passes through the second sliding groove and slides in the third sliding groove.

[0010] Exemplarily, the focusing mechanism includes a transmission member, which is used to transmit and connect the first operating member and the lens assembly, and is configured to convert the rotational movement of the first operating member into the movement of the lens assembly along the first axis.

[0011] Exemplarily, a transmission member is arranged outside the lens assembly, and a third slider and a fourth slide groove extending spirally around the first axis or extending obliquely relative to the first axis are provided on the transmission member; a first slider is provided on the lens housing, and the fixing member is provided with a first slide groove extending along the direction of the first axis, and the first slider passes through the fourth slide groove and slides in the first slide groove; the first operating member is provided with a fifth slide groove extending along the direction of the first axis, and the third slider slides in the fifth slide groove.

[0012] Exemplarily, the fixing member is sleeved outside the lens assembly and the transmission member, and is provided with a second slide groove extending around the first axis; the third sliding block passes through the second slide groove and slides in the fifth slide groove.

[0013] Exemplarily, one or more fixed connection ends of the first slider, the second slider and the third slider are provided with threads.

[0014] Exemplarily, the first operating member is in the shape of a sleeve and is sleeved on the outermost layer of other components of the focusing mechanism.

[0015] Exemplarily, the first operating member is provided with a handle protruding in the radial direction, and the rotation adjustment range of the handle has an intermediate position.

[0016] Exemplarily, the handheld mechanism is provided with a second operating member for realizing a preset control function, and when the handle is located in the middle position, the second operating member and the handle are arranged on the same side of the camera device along a direction parallel to the first axis.

[0017] Exemplarily, the connecting mechanism is provided with a third operating member, which is used to lock or unlock the angle adjustment of the camera device and the hard mirror body. When the handle is in the middle position, the third operating member and the handle are arranged on the same side of the camera device in a direction parallel to the first axis.

[0018] According to another aspect of the present invention, an endoscope system is provided, which includes any camera device as described above.

[0019] A series of simplified concepts are introduced in the utility model content, which will be further described in detail in the detailed implementation section. The utility model content section does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0020] The advantages and features of the present invention are described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show the implementation of the present invention and its description, and are used to explain the principle of the present invention. In the drawings,

[0022] Figure 1 is a perspective view of a camera device according to an exemplary embodiment of the present utility model;

[0023] Figure 2 is a perspective view of a focusing mechanism according to an exemplary embodiment of the utility model;

[0024] Figure 3 for Figure 2 A side view of the focusing mechanism shown;

[0025] Figure 4 for Figure 2 A cross-sectional view of the focusing mechanism shown;

[0026] Figure 5 for Figure 2 An exploded view of the focus mechanism shown; and

[0027] Figure 6 for Figure 5 An exploded view of the first sleeve and lens assembly portion.

[0028] The above drawings include the following reference numerals:

[0029] 100, connecting mechanism; 110, hard lens connecting seat; 120, focusing connecting seat; 1211, third operating member; 200, focusing mechanism; 210, first operating member; 211, handle; 212, fifth slide groove; 220, lens assembly; 221, lens housing; 2211, first slider; 222, lens; 231, transmission member; 2311, fourth slide groove; 2312, third slider; 232, fixing member; 2321, first slide groove; 2322, second slide groove; 300, hand-held mechanism; 310, second operating member. DETAILED DESCRIPTION

[0030] In the following description, a large number of details are provided so that the present invention can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only illustrates preferred embodiments of the present invention, and the present invention can be implemented without one or more of such details. In addition, in order to avoid confusion with the present invention, some technical features known in the art are not described in detail.

[0031] According to one aspect of the present invention, a camera device is provided, and the camera device can be applied to any suitable device. Therefore, according to another aspect of the present invention, an endoscope system is provided. The endoscope system can include any camera device to be introduced below.

[0032] See also Figure 1 The camera device may include a connecting mechanism 100 , a focusing mechanism 200 and a hand-held mechanism 300 .

[0033] An image sensor and other elements may be disposed in the handheld mechanism 300. The handheld mechanism 300 may have a housing, and the image sensor may be disposed in an internal space formed by the housing. The image sensor may include any existing image sensor or any image sensor that may appear in the future.

[0034] The connecting mechanism 100 can be used to detachably connect the hard mirror body. The camera device can be connected to the hard mirror body through the connecting mechanism 100. The interior of the connecting mechanism 100 can be hollow or can be provided with an optical channel for light to pass through. The connecting mechanism 100 may include a hard mirror connecting seat 110 and a focusing connecting seat 120, and the focusing mechanism 200 can be connected between the focusing connecting seat 120 and the handheld mechanism 300. The hard mirror connecting seat 110 can be rotatably connected to the focusing connecting seat 120 around a second axis (the MM axis shown in the figure), so that the hard mirror connecting seat 110 can be rotated at multiple angles relative to the focusing connecting seat 120. The hard mirror connecting seat 110 can be rotatably connected to the focusing connecting seat 120 in various forms such as threaded connection, shaft hole matching connection, etc. The hard mirror connecting seat 110 is rotatable relative to the focusing connecting seat 120 around the second axis MM, so that the hard mirror connecting seat 110 has multiple angles relative to the focusing connecting seat 120 on a plane perpendicular to the second axis MM. The hard mirror connector 110 can be used to connect the hard mirror body. When such a camera device is used, the angle of the hard mirror connector 110 relative to the focus connector 120 can be adjusted, so that observations at different angles can be performed. Optical elements such as reflectors, lenses, etc. can also be arranged inside the focus connector 120 according to needs.

[0035] In order to obtain a clearer imaging result, the imaging unit may need the lens assembly 220 to be located at different positions on the first axis (the PP axis shown in the figure), and by rotating the first operating member 210, the lens assembly 220 can be driven to move on the first axis PP, so that the imaging result can be made clearer. Usually, the second axis MM is coaxial with the axis of the hard lens body. The second axis MM and the first axis PP can be colinear or at an angle to each other. When the second axis MM is at an angle to the first axis PP, a refractive element can be provided in the focusing connector 120 to change the optical path.

[0036] The focusing mechanism 200 may be connected between the connecting mechanism 100 and the hand-held mechanism 300. Light may sequentially pass through the connecting mechanism 100 and the focusing mechanism 200 to reach the image sensor in the hand-held mechanism 300, and realize imaging through the image sensor.

[0037] See also Figure 2The focusing mechanism 200 may include a fixing member 232, a lens assembly 220, and a first operating member 210. The fixing member 232 may be fixedly connected to the hand-held mechanism 300 and the connecting mechanism 100. One end of the fixing member 232 may be fixedly connected to the connecting mechanism 100 and the other end may be fixedly connected to the hand-held mechanism 300. One end of the fixing member 232 may be fixedly connected to the connecting mechanism 100 by clamping, welding, bonding, threading, or other various forms. Similarly, the other end of the fixing member 232 may be fixedly connected to the hand-held mechanism 300 by various forms. Figure 3 and Figure 4 The lens assembly 220 may include a lens housing 221 and a lens 222 disposed therein. The lens assembly 220 and the image sensor may be coaxially disposed with the first axis PP as the axis, and the lens assembly 220 may be movable along the first axis PP to achieve focusing. One or more lenses 222 may be disposed inside the lens assembly 220. The one or more lenses 222 may have the same form, and the lens assembly 220 may also be formed by combining a plurality of lenses 222 in various forms. The lens housing 221 may form a housing cavity for accommodating the lens 222, so the lens housing 221 may have a form adapted to the number, shape and size of the lenses 222. The fact that the lens assembly 220 is movable along the first axis PP means that the lens assembly 220 may be movable only along the first axis PP, or may be synchronously rotated around the first axis PP during the movement along the first axis PP. The first operating member 210 may be rotatable around the first axis PP. The first operating member 210 may include a sleeve with the first axis PP as the axis. The first operating member 210 in the form of a sleeve may be provided with a handle 211. The handle 211 may be in any form such as a paddle that is easy to operate. By turning the handle 211, the first operating member 210 in the form of a sleeve may be rotated around the first axis PP.

[0038] The focusing mechanism 200 can be configured to convert the rotational motion of the first operating member 210 into the movement of the lens assembly 220 along the first axis PP. For example, the focusing mechanism 200 can realize the conversion of the rotational motion of the first operating member 210 into the movement of the lens assembly 220 along the first axis PP through a transmission assembly. The transmission assembly can be connected between the first operating member 210 and the lens assembly 220. The transmission assembly can be configured to convert the rotational motion of the first operating member 210 into the translational motion of the lens assembly 220 along the first axis PP. The transmission assembly can be a screw transmission or any other form that can convert the rotational motion into a linear motion. For the first operating member 210 provided with a handle 211 in the form of a paddle, the first operating member 210 can be rotated by turning the handle 211, and then the lens assembly 220 can be moved along the first axis PP under the action of the transmission assembly, so when the connection mechanism 100 is connected to a hard lens body, the movement of the lens assembly 220 along the first axis PP can make the image sensor's imaging result of the hard lens body observation area clearer. Of course, the present application does not limit the specific form of the first operating member 210, and the first operating member 210 may be rotated in various forms. The present application also does not limit the focusing mechanism 200 to convert the rotational motion of the first operating member 210 into the movement of the lens assembly 220 along the first axis PP through a transmission assembly. The following will further describe in detail an embodiment in which no transmission assembly is provided in the camera device.

[0039] The camera device provided by the utility model can drive the lens assembly 220 to translate along the first axis PP when the first operating member 210 is rotated. Since the focusing mechanism 200 is connected between the connecting mechanism 100 and the hand-held mechanism 300, by setting the first operating member 210 to be rotatable around the first axis PP, interference with the connecting mechanism 100 and the hand-held mechanism 300 can be avoided when operating the first operating member 210. In addition, by rotating the first operating member 210 to drive the lens assembly 220 to move along the first axis PP, the accuracy of the movement of the lens assembly 220 along the first axis PP can be higher, and the imaging clarity can be adjusted more accurately. Moreover, since the first operating member 210 only rotates around the first axis PP, the distance from the first operating member 210 to the hand-held mechanism 300 along the first axis PP can remain unchanged, so that the first operating member 210 can be designed to always be within the range that the fingers of the user holding the hand-held mechanism 300 can touch, thereby providing the possibility for the user to focus with one hand.

[0040] When the first operating member 210 is in the form of a sleeve, a cavity may be formed in the first operating member 210, and the cavity may accommodate other components of the focusing mechanism 200. Therefore, it is hoped that the first operating member 210 in the form of a sleeve can accommodate all other structures of the focusing mechanism 200, and it is hoped that the first operating member 210 in the form of a sleeve can shield and protect the components accommodated in the cavity. From this perspective, it is hoped that the outer wall of the first operating member 210 remains intact, and no holes or grooves are punched on the outer wall of the first operating member 210. The first operating member 210 is provided with a groove or a flange on the inner wall to participate in the transmission, so that the consistency of the appearance of the focusing mechanism 200 can be maintained when the focusing mechanism 200 is observed from the outside. When the inner wall of the first operating member 210 in the form of a sleeve is provided with a groove or a flange, a linear groove or a flange can be easier to process, for example, a groove in the form of a straight groove can be easier to process. However, if you want to use the straight groove to drive the lens assembly 220 to move along the first axis PP when rotating the first operating member 210, you need to add a transmission member 231 to make a transition to convert the motion mode. Figure 5 and Figure 6 The focusing mechanism 200 may include a transmission member 231, which may be used to transmit and connect the first operating member 210 and the lens assembly 220, and is configured to convert the rotational motion of the first operating member 210 into the movement of the lens assembly 220 along the first axis. The transmission member may be a single component, or a complex combination of multiple components to achieve the function of converting the motion mode.

[0041] For example, see Figure 5 and Figure 6The transmission member 231 can be sleeved outside the lens assembly 220, and the transmission member 231 can be provided with a third slider 2312 and a fourth slide groove 2311 that extends spirally around the first axis PP or extends obliquely relative to the first axis PP. The fourth slide groove 2311 extends spirally around the first axis PP, which means that the projection of the fourth slide groove 2311 on a plane perpendicular to the first axis PP can be a complete circle, and the fourth slide groove 2311 extends obliquely relative to the first axis PP, which means that the projection of the fourth slide groove 2311 on a plane perpendicular to the first axis PP can be an arc with an opening. The lens housing 221 can be provided with a first slider 2211, and the first slider 2211 can be fixedly provided on the lens housing 221 by various forms such as integrated molding, threaded connection, clamping or welding. The fixing member 232 can be provided with a first slide groove 2321 extending along the first axis PP. The first slider 2211 can pass through the fourth slide groove 2311 and slide in the first slide groove 2321. Since one end of the fixing member 232 is fixedly connected to the connecting mechanism 100 and the other end is fixedly connected to the hand-held mechanism 300, the first slider 2211 is inserted into the first slide groove 2321, and the fixing member 232 can guide the first slider 2211. The first operating member 210 can be provided with a fifth slide groove 212 extending along the first axis PP direction, and the third slider 2312 can slide in the fifth slide groove 212. Since the fifth slide groove 212 extends along the first axis PP direction, when the third slider 2312 is inserted into the fifth slide groove 212, the transmission member 231 and the first operating member 210 can rotate synchronously. Therefore, rotating the first operating member 210 can drive the transmission member 231 to rotate around the first axis PP. Since the first slider 2211 on the lens housing 221 is inserted into the fourth slide groove 2311, and the fourth slide groove 2311 extends spirally around the first axis PP or extends obliquely relative to the first axis PP, when the transmission member 231 rotates around the first axis PP, the fourth slide groove 2311 will also rotate around the first axis PP, so that the fourth slide groove 2311 and the first slider 2211 can have relative motion. The first slider 2211 is guided by the fixing member 232 and can only move along the first slide groove 2321, that is, it can only move along the first axis PP, so that the lens housing 221 will move along the first axis PP with the first slider 2211. In this way, the rotation of the first operating member 210 drives the lens assembly 220 to move along the first axis PP. In such a camera device, the focusing process is very simple, and only the first operating member 210 needs to be rotated. Moreover, by rotating the first operating member 210 to drive the lens assembly 220 to move along the first axis PP, the focusing is very stable and the focusing accuracy is also higher.

[0042] Exemplarily, the fixing member 232 can be mounted outside the lens assembly 220 and the transmission member 231, and the fixing member 232 can provide protection, restriction and guidance for the lens assembly 220 and the transmission member 231. And the fixing member 232 can be provided with a second slide groove 2322 extending around the first axis PP (when the fixing member is not designed as a complete sleeve shape, if its shape is designed to avoid the movement of other components, it is not necessary to provide the second slide groove 2322). The third slider 2312 can pass through the second slide groove 2322 and slide in the fifth slide groove 212. Since the third slider 2312 can rotate synchronously with the fifth slide groove 212, the second slide groove 2322 can extend around the first axis PP, which can facilitate the third slider 2312 to rotate around the first axis PP in the second slide groove 2322. As shown in the example Figure 5 and Figure 6 The focusing process is described by taking the embodiment shown as an example. When the handle 211 is rotated around the first axis PP, the transmission member 231 will rotate synchronously with the first operating member 210, so that the fourth slide groove 2311 will rotate around the first axis PP. Since the fourth slide groove 2311 is extended spirally around the first axis PP or extends obliquely relative to the first axis PP, the rotation of the fourth slide groove 2311 around the first axis PP will cause the first slider 2211 to move along the first axis PP, so that the lens housing 221 moves along the first axis PP with the first slider 2211, and the lens assembly 220 is moved along the first axis PP. Through the cooperation of the first slider 2211 and the transmission member 231, not only can the rotational motion of the handle 211 be converted into the translational motion of the lens assembly 220, but also the lens assembly 220 can be limited to axial movement only, without setting other limiting structures. Therefore, the internal structure of the overall device is simpler and easy to implement.

[0043] When assembling such a camera device, the transmission member 231 can be first sleeved on the lens housing 221 of the lens assembly 220, and then the first slider 2211 is installed to the lens housing 221 through the fourth slide groove 2311, and then the first slider 2211 is aligned with the first slide groove 2321, so that the first slider 2211 is inserted into the first slide groove 2321, and then the whole is inserted into the fixing member 232 along the first axis PP, and then the third slider 2312 is installed to the transmission member 231 through the second slide groove 2322, and then the fifth slide groove 212 is aligned with the third slider 2312 along the first axis PP, so that the third slider 2312 is inserted into the fifth slide groove 212, and the transmission member 231, the fixing member 232 and the lens housing 221 are connected to the first operating member 210. The assembly sequence is reasonable, and the assembly process is easy to operate.

[0044] Also, see Figure 5 and Figure 6The number of sliders and slide grooves can be set according to actual needs and effects. For example, multiple sliders can be evenly set around or along the first axis PP on any one or more of the aforementioned lens housing 221, transmission member 231, fixing member 232, first operating member 210, and the like. If necessary, multiple corresponding slide grooves can also be set, which can improve the stability of the combination of various components, thereby making the movement process smoother. Of course, a single slider and slide groove can also meet basic functional requirements and reduce assembly time.

[0045] As mentioned above, even if a transmission assembly is not provided, the focusing mechanism 200 can also realize the conversion of the rotational movement of the first operating member 210 into the movement of the lens assembly 220 along the first axis PP. In one embodiment of the utility model, one of the fixing member 232 and the lens housing 221 can be provided with a first slide groove 2321, and the other can be provided with a first slider 2211, and the first slider 2211 can slide in the first slide groove 2321 to enable the lens assembly 220 to move along the first axis PP. Since the fixing member 232 is fixedly connected to the connecting mechanism 100 and the hand-held mechanism 300, when the first slider 2211 slides in the first slide groove 2321, it can be considered that the lens assembly 220 moves relative to the hand-held mechanism 300. The first slide groove 2321 can be parallel to the first axis PP. In this case, the first slider 2211 sliding in the first slide groove 2321 can naturally make the lens assembly 220 translate along the first axis PP. Such a structure is very simple and the movement is more stable and reliable; the first slide groove 2321 does not have to be completely parallel to the first axis. For example, it can be spirally extended around the first axis PP or obliquely extended relative to the first axis PP. In this case, when the first slider 2211 slides in the first slide groove 2321, the lens assembly 220 can move along the first axis PP, and the lens assembly 220 can rotate around the first axis PP at the same time.

[0046] Exemplarily, the fixing member 232 may be sleeved outside the lens assembly 220, and may be provided with a second slide groove 2322 extending around the first axis PP, and the first operating member 210 and the lens housing 221 may be transmission-connected through the second slide groove 2322 to drive the lens assembly 220 to move along the first axis. The transmission connection mentioned here means that the first operating member 210 and the lens housing 221 are not fixedly connected, and there may be relative movement between the first operating member 210 and the lens housing 221, but regardless of the relative position between the first operating member 210 and the lens housing 221, the first operating member 210 and the lens housing 221 are transmission-connected through the second slide groove 2322. For example, a slider may be provided on the first operating member 210, and a groove may be provided on the lens housing 221, and the slider may be inserted into the groove through the second slide groove 2322, so that the first operating member 210 and the lens housing 221 can be transmission-connected through the second slide groove 2322. It is worth noting that the slider and groove mentioned here should be distinguished from the first slider 2211 and the first slide groove 2321 mentioned above. The slider and groove mentioned here are one of the transmission connection methods between the first operating member 210 and the lens housing 221, while the first slider 2211 and the first slide groove 2321 mentioned above are respectively arranged on the fixing member 232 and the lens housing 221.

[0047] For example, the first operating member 210 may be provided with a second slider (not shown), the lens housing 221 may be provided with a third slide groove (not shown) extending spirally around the first axis PP or extending obliquely relative to the first axis PP, and the second slider may pass through the second slide groove 2322 and slide in the third slide groove. The second slider passes through the second slide groove 2322, and the second slide groove 2322 extends around the first axis PP, so the second slider can rotate around the first axis PP, but cannot move along the first axis PP, so the first operating member 210 can only rotate around the first axis PP, but cannot move along the first axis PP. When the first operating member 210 is rotated, due to the cooperation of the first slider 2211 and the first slide groove 2321 between the fixing member 232 and the lens housing 221, the lens housing 221 will move along the first axis PP as the first operating member 210 rotates. In this way, when the operator uses the camera device, he rotates the first operating member 210 to move the lens assembly 220 along the first axis PP, and the first operating member 210 does not need to move along the first axis PP, so the operation can be more convenient.

[0048] Exemplarily, one or more of the first slider 2211, the second slider and the third slider 2312 have a threaded fixed connection end. Exemplarily, a threaded hole may be provided on the lens housing 221, and the thread of the fixed connection end of the first slider 2211 may be screwed into the threaded hole on the lens housing 221, so that the first slider 2211 may be threadedly connected to the lens housing 221. Similarly, the second slider may be threadedly connected to the first operating member 210, and the third slider 2312 may be threadedly connected to the transmission member 231. The threaded connection is easier to assemble, disassemble, and adjust, and the installation is more stable and reliable.

[0049] For example, the first operating member 210 is sleeve-shaped and is sleeved on the outermost layer of other components of the focusing mechanism 200. Such a camera device can accommodate the entire internal structure of the focusing mechanism 200 inside the first operating member 210, making the overall appearance of the device neater, and the first operating member 210 can protect the internal structure of the focusing mechanism 200.

[0050] Exemplarily, the first operating member 210 is provided with a handle 211 protruding in the radial direction, and the range of rotation adjustment of the handle 211 has an intermediate position. The handle 211 can be fixedly connected to the first operating member 210, and the handle 211 can be formed by integrated processing with the first operating member 210, or the two can be separately processed and fixedly connected together by clamping, welding or other various forms. By turning the handle 211, the first operating member 210 can be rotated, so that the lens assembly 220 moves along the first axis PP. The intermediate position of the range of rotation adjustment of the handle 211 can refer to the position of the handle 211 when the lens assembly 220 is at the intermediate position between the nearest end and the farthest end when the handle 211 is turned to move the lens assembly 220 along the first axis PP. The setting of the handle 211 can make it more convenient to rotate the first operating member 210, and the focusing accuracy of the focusing mechanism 200 is also higher. When there is no handle, a surface layer with greater friction may also be provided on the outer surface of the first operating member 210 , for example, through material or texture, so that the operator can easily rotate the first operating member 210 .

[0051] Exemplarily, the handheld mechanism 300 is provided with a second operating member 310 for realizing a preset control function, and the preset control function can be set or changed according to actual needs. For example, the preset control function can be to control the operation of the image sensor or change the image display effect, etc. When the handle 211 is in the middle position, the second operating member 310 and the handle 211 are arranged on the same side of the camera device along a direction parallel to the first axis. The handle 211 and the second operating member 310 are located on the same side of the camera device, and medical workers only need one hand to operate the handle 211 and the second operating member 310, that is, one hand can complete the focusing operation and use the second operating member 310 to realize the preset control function, which is easier to use. And the handle 211 is easy to observe whether it is turned from the middle position to either side, and a larger rotation angle (focusing range) can be achieved.

[0052] Exemplarily, the connection mechanism 100 is provided with a third operating member 1211, and the third operating member 1211 is used to lock or unlock the angle adjustment between the camera device and the hard mirror body. When the handle 211 is in the middle position, the third operating member 1211 and the handle 211 are arranged on the same side of the camera device in a direction parallel to the first axis PP. The third operating member 1211 can be a paddle, a rocker or various other forms. The provision of the third operating member 1211 can facilitate operation. The handle 211 and the third operating member 1211 are located on the same side of the camera device. Medical workers only need one hand to operate the handle 211 and the third operating member 1211, that is, the focusing operation and the locking or unlocking of the angle adjustment between the camera device and the hard mirror body can be completed with one hand, which is easier to use.

[0053] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the contours of each component itself.

[0054] For ease of description, regional relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figure and other components or features. It should be understood that regional relative terms include not only the orientation of the components as described in the figure, but also different orientations in use or operation. For example, if the components in the accompanying drawings are inverted as a whole, the components "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Therefore, the exemplary term "above" may include both "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this article is intended to include all of these situations.

[0055] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, parts, components and / or combinations thereof.

[0056] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0057] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A camera device, characterized in that: include: A handheld mechanism, wherein an image sensor is disposed in the handheld mechanism; A connecting mechanism, the connecting mechanism is used to detachably connect the hard mirror body; as well as A focusing mechanism, the focusing mechanism is connected between the connecting mechanism and the hand-held mechanism, and the focusing mechanism comprises: A fixing member, the fixing member fixedly connecting the hand-held mechanism and the connecting mechanism; A lens assembly, the lens assembly comprising a lens housing and a lens disposed therein, the lens assembly and the image sensor being coaxially disposed with a first axis as an axis, and the lens assembly being movable along the first axis to achieve focusing; and A first operating member, the first operating member is rotatable around the first axis, wherein The focus adjustment mechanism is configured to convert the rotational movement of the first operating member into the movement of the lens assembly along the first axis.

2. The camera device according to claim 1, characterized in that: One of the fixing member and the lens housing is provided with a first slide groove, and the other is provided with a first slider. The first slider slides in the first slide groove so that the lens assembly can move along the first axis.

3. The camera device according to claim 2, characterized in that: The first sliding groove is parallel to the first axis.

4. The camera device according to claim 2, characterized in that: The fixing member is sleeved outside the lens assembly and is provided with a second slide groove extending around the first axis. The first operating member is transmission-connected with the lens housing through the second slide groove to drive the lens assembly to move along the first axis.

5. The camera device according to claim 4, characterized in that: The first operating member is provided with a second sliding block, the lens housing is provided with a third sliding groove which extends spirally around the first axis or extends obliquely relative to the first axis, and the second sliding block passes through the second sliding groove and slides in the third sliding groove.

6. The camera device according to claim 1, characterized in that: The focusing mechanism comprises a transmission member, which is used for transmission connection between the first operating member and the lens assembly and is configured to convert the rotational movement of the first operating member into movement of the lens assembly along the first axis.

7. The camera device according to claim 6, characterized in that: The transmission member is arranged outside the lens assembly, and is provided with a third slider and a fourth slide groove which extends spirally around the first axis or extends obliquely relative to the first axis; the lens housing is provided with a first slider, and the fixing member is provided with a first slide groove which extends along the direction of the first axis, and the first slider passes through the fourth slide groove and slides in the first slide groove; the first operating member is provided with a fifth slide groove which extends along the direction of the first axis, and the third slider slides in the fifth slide groove.

8. The camera device according to claim 7, characterized in that: The fixing member is sleeved outside the lens assembly and the transmission member, and is provided with a second slide groove extending around the first axis; the third sliding block passes through the second slide groove and slides in the fifth slide groove.

9. The camera device according to any one of claims 2, 3, 4, 5, 7 and 8, characterized in that: The fixed connection end of the first sliding block is provided with a thread.

10. The camera device according to claim 5, characterized in that: The fixed connection end of the second sliding block is provided with a thread.

11. The camera device according to claim 7 or 8, characterized in that: The fixed connection end of the third sliding block is provided with a thread.

12. The camera device according to claim 1, characterized in that: The first operating member is in the shape of a sleeve and is sleeved on the outermost layer of other components of the focusing mechanism.

13. The camera device according to claim 12, characterized in that: The first operating member is provided with a handle protruding in the radial direction, and the rotation adjustment range of the handle has an intermediate position.

14. The camera device according to claim 13, characterized in that: The handheld mechanism is provided with a second operating member for realizing a preset control function. When the handle is located at the middle position, the second operating member and the handle are arranged on the same side of the camera device along a direction parallel to the first axis.

15. The camera device according to claim 13 or 14, characterized in that: The connecting mechanism is provided with a third operating member, and the third operating member is used to lock or unlock the angle adjustment of the camera device and the hard mirror body. When the handle is located in the middle position, the third operating member and the handle are arranged on the same side of the camera device along a direction parallel to the first axis.

16. An endoscope system, characterized in that: Comprising a camera device as described in any one of claims 1-15.

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