Drawings
FIG. 1 is a schematic diagram of a camera assembly prior to pulling the camera assembly using a guide disclosed in an embodiment of the present application;
FIG. 2 is an enlarged schematic view of the application at A in FIG. 1;
FIG. 3 is a schematic diagram of a camera assembly after pulling using the guide disclosed in an embodiment of the present application;
FIG. 4 is an enlarged schematic view of the present application at B in FIG. 3;
FIG. 5 is a schematic view of a disposable segment according to an embodiment of the present application;
FIG. 6 is an enlarged schematic view of the present application at C in FIG. 5;
FIG. 7 is a schematic view of a portion of a disposable segment according to an embodiment of the present application;
FIG. 8 is a cross-sectional view of a portion of the structure of a disposable segment disclosed in an embodiment of the present application;
FIG. 9 is an enlarged schematic view of the application at D in FIG. 8;
FIG. 10 is a schematic view of a guide disclosed in an embodiment of the present application;
FIG. 11 is a schematic diagram illustrating an assembly between a connecting base and a camera module when an elastic arm is located at a first position according to an embodiment of the present application;
Fig. 12 is a schematic structural view of the connecting seat when the elastic arm is located at the second position according to the embodiment of the present application;
FIG. 13 is a cross-sectional view of the connecting seat when the spring arm is in the second position according to the embodiment of the present application;
FIG. 14 is a schematic view of an endoscope according to an embodiment of the present application;
FIG. 15 is an enlarged schematic view of the application at E in FIG. 14;
fig. 16 is a schematic structural diagram of a multiplexing section according to an embodiment of the present application;
fig. 17 is an enlarged schematic view of the application at F in fig. 16.
Reference numerals illustrate:
100. The disposable section, 101, the installation channel, 1011, the clamping groove, 1012, the necking section, 110, the operation handle, 111, the butt joint, 120, the insertion part, 121, the front end seat, 130, the channel component, 131, the channel pipe, 132, the clamping cylinder, 200, the multiplexing section, 210, the camera component, 211, the camera module, 212, the cable, 220, the butt joint shell, 221, the wire storage space, 300, the guide piece, 310, the guide rope, 320, the connection seat, 321, the accommodating cavity, 322, the light transmitting part, 323, the seat body, 324, the elastic arm, 3241, the clamping structure, 325, the avoidance channel, 410 and the movable gap.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that some, but not all embodiments of the application are described. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The endoscope and the disposable section thereof provided by the embodiment of the application are described in detail below by means of specific embodiments and application scenes thereof with reference to the accompanying drawings.
In various embodiments of the present application, "proximal" and "distal" refer to the endoscope and its components in the environment of use, relative to the user's proximal-distal position, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".
The inventor found that the camera module in the related art includes a camera module and a cable, the camera module is connected with the cable, and when assembled, the cable is pushed by hand to insert the camera module into the mounting channel and mount the camera module to a preset position in the mounting channel. However, the length of the cable is longer, the length-diameter ratio of the cable is very large, so that the cable is small in rigidity and good in flexibility, deformation is easy to occur, when the cable is subjected to thrust, the thrust is unevenly distributed on the cable, a part of the cable is subjected to larger stress, other parts of the cable are relatively small in stress, the unevenly distributed stress can lead to cable bending, the thrust cannot be transmitted to the camera module after the cable is bent, and the camera module cannot be pushed to move any more, so that the camera module is difficult to install at a preset position.
As shown in fig. 1 to 7 and fig. 14 to 17, an embodiment of the present application discloses a disposable section 100 of an endoscope, in which a mounting channel 101 is provided in the disposable section 100, and the mounting channel 101 is used for mounting an image pickup assembly 210 of a multiplexing section 200 of the endoscope. Illustratively, the camera assembly 210 may include a camera module 211 and a cable 212, where the camera module 211 is connected to the cable 212, and the cable 212 may provide power and transmit signals to the camera module 211, where the cable 212 has a certain length. Further, the camera module 211 may include an imaging assembly including a lens and an image sensor, through which an image of the human body may be collected. Still further, the camera module 211 may further include a light source, through which illumination can be provided to the imaging assembly.
The proximal end of the disposable segment 100 defines a first opening and the distal end of the disposable segment 100 defines a second opening, both of which communicate with the mounting channel 101. Specifically, the camera assembly 210 may enter the mounting channel 101 through the first opening and the guide 300 may pass out of the mounting channel 101 through the second opening, for example, when the distal end of the guide 300 is pulled, the camera assembly 210 is continuously moved in a direction approaching the second opening and the guide 300 is continuously passed out of the second opening, and the camera assembly 210 may capture an image of the human body through the second opening.
The guide 300 is pre-installed in the installation channel 101, where the pre-installation may be that the guide 300 is installed in the installation channel 101 before the disposable section 100 leaves the factory, that is, the guide 300 may be installed in the installation channel 101 during the process of processing the disposable section 100, and the main body of the guide 300 is manufacturer, and the manufacturer wears the guide 300 relatively easily. It should be noted that, the guide 300 may be a relatively stiff structure, such as an iron wire, or the guide 300 may be a relatively stiff structure, such as a flexible rope, where the flexible rope may be threaded into the mounting channel 101 by a guide wire.
The proximal end of the guide 300 is adapted to be coupled to the camera assembly 210. Illustratively, the proximal end of the guide 300 may extend beyond the first opening to facilitate coupling the camera assembly 210 to the proximal end of the guide 300, where the coupling between the guide 300 and the camera assembly 210 may be a knotted connection, an adhesive, such as a glue bond, a double sided adhesive, or the like. In addition, the proximal end of the guide 300 may not protrude from the first opening, and a connection socket 320, which will be described below, may be formed at the proximal end of the guide 300, and may be connected to the camera module 210 through the connection socket 320. Of course, when the connection socket 320, which will be described below, is not formed at the proximal end of the guide 300, the proximal end of the guide 300 may not protrude from the first opening, i.e., all portions of the proximal end of the guide 300 are located in the mounting channel 101, and the proximal end of the guide 300 is disposed adjacent to the first opening, and the proximal end of the guide 300 may be pulled out of the first opening by a conventional tool such as forceps, so as to be connected to the camera module 210.
The distal end of the guide 300 is used for pulling. For example, referring to fig. 1, the distal end of the guide 300 may extend out of the second opening, that is, the distal end of the guide 300 is located outside the mounting channel 101, so as to facilitate pulling, or the distal end of the guide 300 may not extend out of the second opening, in which case the distal end of the guide 300 is located inside the mounting channel 101, and the distal end of the guide 300 may be pulled out of the second opening by conventional means such as forceps, so as to facilitate pulling.
The body to be pulled here may be a doctor of a surgeon, a user of a clamping device, or the like, and the doctor of the surgeon may pull the guide 300 through the clamping device to position the image pickup assembly 210 at a predetermined position in the installation channel 101. In addition, after the guide 300 is pulled to mount the image pickup assembly 210 to the mounting channel 101 at a predetermined position, the guide 300 may be separated from the image pickup assembly 210 and then the assembled endoscope may be inserted into the human body.
In the present application, the guide 300 is pre-threaded in the installation channel 101 of the disposable section 100, when the camera module 210 is assembled, the proximal end of the guide 300 is connected with the camera module 210, and then the distal end of the guide 300 is pulled, so that the camera module 210 is installed at a preset position in the installation channel 101, and in the process of pulling the guide 300, the pulling force is uniformly distributed along the whole length of the rope, so that the guide 300 is uniformly pulled, and the guide 300 is prevented from being locally deformed and bent, so that the guide 300 can stably transmit the pulling force to the camera module 210, and the camera module 210 can continuously move under the action of the pulling force, so as to reduce the difficulty of assembling the camera module 210 at the preset position in the installation channel 101.
In some embodiments, guide 300 may include only guide wire 310, where the proximal end of guide wire 310 may be attached to camera assembly 210 by adhesive, heat staking, binding knots, or the like.
In order to ensure the connection stability between the guide 300 and the camera assembly 210 and the convenience of the disassembly between the guide 300 and the camera assembly 210, in an alternative embodiment, referring to fig. 10, the guide 300 includes a guide rope 310 and a connection seat 320, the connection seat 320 is connected to the proximal end of the guide rope 310, and a connection structure is formed on the connection seat 320 and can be detachably connected to the camera assembly 210.
In this embodiment, the guide 300 includes a guide rope 310 and a connection seat 320, the camera assembly 210 can be connected with a connection structure on the connection seat 320, and the camera assembly 210 and the guide 300 are connected by the connection structure, so that the connection strength between the two can be ensured, and the camera assembly 210 can be disconnected with the guide 300 by the connection structure, so that the two can be conveniently and detachably connected. It can be seen that, with the structure of the present embodiment, the connection stability between the guide 300 and the camera assembly 210 can be ensured, and the convenience of disassembly between the guide 300 and the camera assembly 210 can be ensured.
In an alternative embodiment, referring to fig. 4 and 11, the camera module 210 includes a camera module 211, a receiving cavity 321 is formed in a connection base 320, a mounting hole communicating with the receiving cavity 321 is formed in the connection base 320, the receiving cavity 321 is used for receiving at least a portion of the camera module 211 along an axial direction of the camera module, and a portion of the connection base 320 opposite to the mounting hole is provided with a light transmitting portion 322. Specifically, after the camera module 211 is mounted to the accommodating cavity 321, the light transmitting portion 322 is disposed opposite to the camera module 211, and the light transmitting portion 322 is capable of transmitting light, so that the light irradiated by the light source into the human body can be reflected into the camera module 211 through the light transmitting portion 322, and in the case that the camera module 211 includes an imaging component and a light source, the light transmitting portion 322 is disposed opposite to the imaging component and the light source, respectively. Of course, the connection seat 320 may be a tubular structure, a plate structure, or the like, and the structure of the connection seat 320 is not limited in the present application.
In this embodiment, the connecting seat 320 has a receiving cavity 321 therein, when the camera module 211 is connected to the connecting seat 320, at least a portion of the camera module 211 along the axial direction thereof is located in the receiving cavity 321, that is, the camera module 211 is axially covered by the connecting seat 320, so that when the camera module 211 is mounted at a predetermined position of the mounting channel 101 and a portion of the disposable section 100 is inserted into a human body, the connecting seat 320 can prevent tissue fluid, tissue, etc. in the human body from contacting with the camera module 211 to pollute the camera module 211, thereby ensuring the cleanliness of the camera module 211 and facilitating the multiplexing of the multiplexing section 200.
It should be noted that, after the structure of the present embodiment is adopted, after the camera module 211 is assembled to a preset position in the mounting channel 101 by using the guide 300, the guide rope 310 and the connection seat 320 can be separated, and the connection seat 320 and the camera module 211 can be kept connected, and after the assembled endoscope is extracted from the human body after the operation is completed, the connection seat 320 and the camera module 211 can be separated.
Illustratively, the proximal end of the guide wire 310 may be embedded within the connector 320, or the proximal end of the guide wire 310 may be adhesively attached to the connector 320, in both cases, by cutting the proximal end of the guide wire 310 to separate the guide wire 310 from the connector 320. Further, as shown in fig. 4, the guide rope 310 is located on the outer peripheral surface of the connection base 320 from the outlet of the connection base 320, so that the guide rope 310 remaining on the connection base 320 is prevented from being cut off to obstruct the view of the camera module 211.
In an alternative embodiment, referring to fig. 10, the connection structure is a clamping structure 3241, the front projection of the clamping structure 3241 is located within the front projection of the accommodating cavity 321 along the axial direction of the connection seat 320, a avoidance channel 325 is formed on one side of the clamping structure 3241, and the avoidance channel 325 is used for avoiding the camera module 211, so that the camera module 211 extends into the accommodating cavity 321, and the camera module 211 can be rotationally clamped with the clamping structure 3241.
The process of connecting the camera module 211 and the connection seat 320 by adopting the structure of the embodiment is as follows, the clamped part of the camera module 211 and the connection seat 320 (in the case that the camera module 211 is square, the part can be the corner of the camera module 211) is aligned with the avoidance channel 325, the camera module 211 is inserted into the accommodating cavity 321, in the process, the camera module 211 passes through the clamping structure 3241 through the avoidance channel 325, the camera module 211 is positioned below the clamping structure 3241 (taking the direction shown in fig. 10 as an example), then the camera module 211 is rotated to enable the camera module 211 to be matched with the clamping structure 3241, so that the camera module 211 is clamped and matched with the connection seat 320, the camera module 211 and the connection seat 320 are limited in the axial direction of the connection seat 320, the camera module 211 can move under the pulling of the guide rope 310, and when the camera module 211 and the connection seat 320 are disassembled, the camera module 211 is rotated to enable the camera module 211 to face the avoidance channel 325, and the camera module 211 can be separated from the connection seat 320. It can be seen that, in this embodiment, the avoidance channel 325 is formed on the connection seat 320, and the camera module 211 and the connection seat 320 are detachably connected in a rotation clamping manner, so that compared with a common fastening connection manner, the embodiment can reduce the resistance generated when the camera module 211 and the connection seat 320 are connected, thereby reducing the connection difficulty between the camera module 211 and the connection seat 320. Of course, the connection structure may be a screw structure, and the present application is not limited to the specific type of connection structure.
In some embodiments, the clamping structure 3241 may be at least two arc-shaped protruding portions disposed on the connecting seat 320, where each arc-shaped protruding portion is disposed at intervals along the circumferential direction of the connecting seat 320, and a avoiding channel 325 is formed between two adjacent arc-shaped protruding portions.
In an alternative embodiment, referring to fig. 2, 4 and 8 to 13, the connection seat 320 includes a seat body 323 and at least two elastic arms 324, the accommodating cavity 321 is disposed in the seat body 323, each elastic arm 324 is connected with the seat body 323 and is distributed at intervals along the circumferential direction of the seat body 323, and the elastic arms 324 have a clamping structure 3241. Illustratively, as shown in fig. 11, the engaging structure 3241 may be a lower edge of the elastic arm 324, or the engaging structure 3241 may be a protrusion protruding from an inner surface of the elastic arm 324.
The elastic arm 324 has a first position (the position shown in fig. 10 and 11), in which the clamping structure 3241 can press the camera module 211 and apply a force to the camera module 211 in a direction extending from the mounting opening to the light-transmitting portion 322, so that the camera module 211 can be pressed against the base 323, and the connection stability between the camera module 211 and the connection base 320 is enhanced.
The elastic arm 324 can switch from a first position to a second position (the position shown in fig. 12 and 13) when receiving an outward pressing force, and in the second position, the clamping structure 3241 can release the camera module 211, and a moving gap 410 is formed between the clamping structure 3241 and the camera module 211.
The specific working process of this embodiment is as follows, before the camera module 211 is assembled to the connection seat 320, an outward extrusion force is applied to the elastic arm 324, so that the elastic arm 324 moves outwards and deforms with the connection point between itself and the seat 323 as a base point, in this process, the distance between the clamping structure 3241 on the elastic arm 324 and the light-transmitting portion 322 will be increased, so that after the camera module 211 is located below the clamping structure 3241, a movable gap 410 can be formed between the clamping structure 3241 and the camera module 211 is prevented from contacting when rotating relative to the clamping structure 3241, so that friction force is avoided between the camera module 211 and the clamping structure 3241, and the camera module 211 can be easily rotated to a preset position, so as to reduce difficulty in matching the camera module 211 with the clamping structure 3241. After the camera module 211 rotates in place, the elastic arm 324 is released, the elastic arm 324 recovers to deform under the elastic action of the elastic arm 324, and the elastic arm 324 moves inwards at the base point, so as to press the camera module 211, press and butt the camera module 211 onto the base 323, and strengthen the connection stability between the camera module 211 and the connecting seat 320.
The elastic arm 324 may be a structure having elasticity, which may be a plate-like or rod-like structure, or the elastic arm 324 may include an elastic member and a rigid arm, the elastic member being connected to the rigid arm and the seat 323, respectively, the elastic member being capable of driving the rigid arm to switch from the second position to the first position, for example, the elastic member may be a torsion spring.
In order to further simplify the step of connecting the camera module 211 with the connector 320, in an alternative embodiment, referring to fig. 3 and 9, a slot 1011 is formed at the proximal end of the mounting channel 101, each elastic arm 324 can be snapped into the slot 1011, and the inner wall of the slot 1011 can apply an outward pressing force to the elastic arm 324, so that the elastic arm 324 is elastically deformed and located at the second position. Illustratively, the inner wall of the latch 1011 pressing against the resilient arm 324 may be inverted cone-shaped.
In this embodiment, the proximal end of the mounting channel 101 is formed with a slot 1011, the connection seat 320 is located at the proximal end of the mounting channel 101, and the elastic arm 324 of the connection seat 320 extends into the slot 1011 and is clamped with the slot 1011, which can prevent the elastic arm 324 from being separated from the slot 1011, and when the elastic arm 324 is clamped with the slot 1011, the inner wall of the slot 1011 can apply an outward extrusion force to the elastic arm 324, so that the elastic arm 324 is located at the second position, so that the operator does not need to break apart the elastic arm 324 to be located at the second position when connecting the camera module 211 with the connection seat 320, which can simplify the step of connecting the camera module 211 with the connection seat 320.
In order to accurately locate the camera module 211 at a predetermined position in the mounting channel 101, in an alternative embodiment, referring to fig. 4, the distal end of the mounting channel 101 includes a reduced-diameter section 1012, and the reduced-diameter section 1012 gradually decreases in cross-sectional area in a direction extending from the proximal end to the distal end of the mounting channel 101, and the connector 320 can be in a limit fit with the inner wall of the reduced-diameter section 1012 in a direction extending from the proximal end to the distal end of the mounting channel 101.
In this embodiment, after the proximal camera module 211 of the guide 300 is connected, the distal end of the guide 300 can be pulled until the distal end is pulled, at this time, the connecting seat 320 is just in limit fit with the necking section 1012, and the camera module 211 is just mounted to a preset position, therefore, the structure of this embodiment does not need to specially determine the pulled position of the camera module 211, and the assembly is simple. It should be noted that, the outer peripheral surface of the connection seat 320 also has a mating section that mates with the necking section 1012, and the cross-sectional area of the mating section gradually decreases in the direction extending from the proximal end to the distal end of the connection seat 320, and the mating section of the connection seat 320 can be in limit fit with the inner wall of the necking section 1012 in the direction extending from the proximal end to the distal end of the mounting channel 101.
Optionally, the disposable section 100 may include a channel assembly 130, where the channel assembly 130 includes a channel tube 131 and a clamping tube 132, the proximal end of the channel tube 131 is connected to the clamping tube 132, the mounting channel 101 is disposed in the clamping tube 132 and the channel tube 131, the clamping tube 132 is provided with the slot 1011 as described above, and the distal end of the channel in the channel tube 131 is provided with the necking section 1012 as described above. It should be noted that, the locking barrel 132 may be disposed in the operating handle 110 of the disposable section 100.
In an alternative embodiment, referring to fig. 5 and 14, the disposable segment 100 includes an operating handle 110 and an insertion portion 120 connected, a mounting channel 101 extends from the operating handle 110 to the insertion portion 120, a first opening is formed in the operating handle 110, and a second opening is formed in a distal end of the insertion portion 120. Illustratively, the second opening may be formed at a distal end surface or an outer circumferential surface of the insertion portion 120, which is not limited by the present application. In this embodiment, the distal end of the operation handle 110 is connected to the proximal end of the insertion portion 120, and the operator can perform a surgical operation by holding the operation handle 110, and the insertion portion 120 can be inserted into the human body. Further, the insertion portion 120 includes an active bending section, and bending of the active bending section can be controlled by manipulating a lever on the handle 110.
Optionally, the front end of the insertion portion 120 has a front end seat 121, the distal end of the mounting channel 101 extends into the front end seat 121, and the second opening is disposed in the front end seat 121, and the preset mounting position of the camera module 211 is located in the front end seat 121.
Referring to fig. 14 and 15, the embodiment of the present application further discloses an endoscope, where the endoscope includes a multiplexing section 200 and the disposable section 100 according to any of the above embodiments, the multiplexing section 200 includes an image capturing assembly 210, the image capturing assembly 210 includes an image capturing module 211 and a cable 212, the cable 212 is connected to the image capturing module 211, and the image capturing module 211 can be connected to a proximal end of the guide 300 so as to be guided to a preset installation position by the guide 300. Since the endoscope of the present embodiment includes the above-mentioned disposable section 100, the endoscope has the beneficial effects of the above-mentioned disposable section 100, and will not be described herein.
The endoscope in the embodiment of the application can be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a enteroscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope and the like, and the embodiment of the application does not limit the type of the endoscope.
In an alternative embodiment, referring to fig. 17, the multiplexing section 200 further comprises a docking housing 220, the docking housing 220 being capable of docking with the disposable section 100. For example, referring to fig. 5, the disposable section 100 is provided with a docking head 111, the above-mentioned clamping cylinder 132 is disposed in the docking head 111, and the docking housing 220 of the multiplexing section 200 can dock, e.g., be clamped, screwed, etc., with the docking head 111. In the case that the disposable section 100 includes the operation handle 110 and the insertion portion 120, the docking head 111 is formed on the operation handle 110, e.g., formed at a proximal end of the operation handle 110.
The cable 212 is disposed inside the docking shell 220, a cable storage space 221 is disposed inside the docking shell 220, a portion of the cable 212 is disposed in the cable storage space 221, and the cable storage space 221 is used for storing redundant cables 212.
Because the multiplexing section 200 is used with the disposable sections 100 with different length sizes, in order to adapt to the disposable section 100 with a larger length size, the length of the cable 212 of the multiplexing section 200 is generally lengthened, and in order to make the lengthened cable 212 better adapt to the disposable section 100 with a smaller length size, the embodiment sets a cable storage space 221 in the docking housing 220, and makes the cable 212 pass through the cable storage space 221, when the docking housing 220 is docked with the disposable section 100 with a smaller length size, the cable 212 forms a redundant bend, and the redundant bend portion is received by the cable storage space 221, so that the multiplexing section 200 is adapted to the disposable section 100 with a smaller length size. Of course, the cable storage space 221 may not be provided in the docking case 220, which is not limited by the present application.
The foregoing embodiments of the present application mainly describe differences between the embodiments, and as long as there is no contradiction between different optimization features of the embodiments, the embodiments may be combined to form a better embodiment, and in view of brevity of line text, no further description is provided herein. The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.