A visual device

Abstract

The present invention provides a visualizer, which includes: a camera assembly, which forms an image through an observation window of a visual medical device; a connecting line, which extends from a proximal end toward a distal end, and the distal end of the connecting line is connected to the camera assembly; a handle, which is connected to the connecting line and is provided with at least one limiting portion; the handle controls the camera assembly through the connecting line so that it can be plugged and unplugged into the visual cavity, so that the camera assembly can reach the observation window at the distal end of the visual cavity; and when the camera assembly is inserted into the visual cavity, the limiting portion cooperates with the visual cavity limiting matching portion to prevent the camera assembly from axially and radially shifting in the visual cavity.

Description

Technical Field

[0001] The invention belongs to the field of visual medical equipment, and in particular relates to a visual device and a visual laryngeal mask assembly. Background Art

[0002] Visual medical devices are medical devices that achieve the visualization function of laryngeal mask medical devices through the cooperation of endoscopes. When cooperating, the endoscope needs to be held in hand to ensure that its front-end camera is always close to the laryngeal mask observation window to ensure image stability. For example, a visual laryngeal mask has a visual cavity, the distal end of the visual cavity forms an observation window and the proximal end forms an insertion port. When in use, the endoscope needs to be inserted into the visual cavity. However, the entire visual process requires the doctor to hold the endoscope in hand, which is inconvenient to operate. In addition, the endoscope is very easy to shift, and the visual process is unstable. Summary of the invention

[0003] In view of the above technical problems, the present invention provides a visual laryngeal mask assembly, which comprises

[0004] A laryngeal mask, wherein a visual cavity is formed along the longitudinal extension direction thereof, an observation window is formed at the distal end of the visual cavity and a socket is formed at the proximal end thereof, and at least one position-limiting fitting portion is formed at the visual cavity;

[0005] A visualizer comprising:

[0006] A camera assembly, wherein the camera assembly forms an image through an observation window of a visual medical device;

[0007] A connecting line, the connecting line extending from the proximal end toward the distal end, and the distal end of the connecting line is connected to the camera assembly;

[0008] A handle, the handle is connected to the connecting line and is provided with at least one limiting portion;

[0009] The handle controls the camera assembly to be pluggable and fit into the visual cavity through a connecting line, so that the camera assembly can reach the observation window at the far end of the visual cavity;

[0010] When the camera assembly is inserted into the visual cavity, the limiting portion cooperates with the limiting matching portion of the visual cavity to prevent the camera assembly from axially and radially shifting in the visual cavity.

[0011] Preferably, the handle controls the limit portion to have a first position for limit cooperation with the limit cooperation portion and a second position for releasing the limit cooperation with the limit cooperation portion, and when the limit portion is in the second position, the camera assembly can be pulled out of the visual cavity; the visual device also includes an elastic member supported between the handle and the laryngeal mask, and the elastic member has a supporting state and a compressed state; when the elastic member is in the compressed state, the limit portion releases the limit cooperation with the limit cooperation portion; when the elastic member is in the supporting state, the limit portion is limit cooperated with the limit cooperation portion; when the elastic member changes from the compressed state to the supported state, it applies a force to the limit portion to move toward the first position, so that the limit portion is limit cooperated with the limit cooperation portion.

[0012] Preferably, the handle is provided with a limiting protrusion toward the visible cavity, and a guide groove and a clamping groove connected to the guide groove are formed in the visible cavity, the limiting protrusion moves between the guide groove and the clamping groove, and the limiting protrusion can be limitedly engaged with the clamping groove in the axial direction and the radial direction; and when the limiting protrusion moves from the clamping groove to the guide groove, the guide groove allows the limiting part to escape therefrom.

[0013] Preferably, the limiting protrusion has a first limiting surface and a second limiting surface; the guide groove extends from the visual cavity socket toward the lower side, and the guide groove extends radially to form a card slot, and the card slot has a limiting top and a limiting side wall. When the limiting protrusion extends into the card slot, the limiting top cooperates with the first limiting surface to prevent the camera assembly from shifting in the axial direction, and the second limiting surface cooperates with the limiting side wall to prevent the camera assembly from shifting in the radial direction.

[0014] Preferably, the handle includes an operating part and a connecting part, the operating part is arranged perpendicular to the connecting line, the connecting part is arranged along the extension direction of the connecting line, and the connecting part is connected to the connecting line; the operating part is clamped above the socket, and the limiting protrusion is arranged on the connecting part.

[0015] Preferably, the connecting line comprises at least a conductive wire, one end of which is connected to a camera, and the other end of which passes through the handle to form a connecting end; preferably, the conductive wire has an insertion section for inserting into the visual cavity, and the insertion section is wrapped with a tube; more preferably, the connecting portion is fixedly connected to the upper end of the tube; the tube comprises a metal tube wrapping the conductive wire and a heat shrink tube wrapping the metal tube.

[0016] Preferably, the operating part has an action surface facing the laryngeal mask, and the laryngeal mask has a mating surface suitable for fitting with the action surface. The elastic member is telescopically arranged between the action surface and the mating surface, and the limiting protrusion moves between the card slot and the guide slot in response to the telescopic stroke of the elastic member.

[0017] Preferably, the laryngeal mask comprises a laryngeal mask body and a ventilation connector connected to the laryngeal mask body, the ventilation connector having a ventilation pipe and a connecting pipe arranged adjacent to the ventilation cavity, the ventilation pipe having an outer wall with an arcuate surface; the operating portion is recessed inwardly toward the direction of the ventilation pipe to form an arcuate action surface, and the action surface is suitable for being arranged in contact with the outer wall of the ventilation pipe; the elastic member is retractably arranged between the action surface and the outer wall of the ventilation pipe, and has a compressed state and a supporting state, when the elastic member is in the supporting state, the action surface is positioned and matched with the outer wall of the ventilation pipe, and the limiting protrusion is clamped in the clamping groove; when the elastic member is in the contracted state, the action surface is released from the positioning and matching with the outer wall of the ventilation pipe, and the limiting protrusion enters the guide groove.

[0018] Preferably, the handle is made of metal material, and the elastic member is a marble retractably arranged on the handle, and the marble can be extended to the outside of the handle or retracted to the inside of the handle; when the handle rotates relative to the laryngeal mask, the limiting protrusion is driven by the marble to move between the guide groove and the card slot.

[0019] Preferably, the connection line passes through the handle and extends outward to form a data connector.

[0020] The present invention also provides a visualizer, which adopts the visualizer described above.

[0021] Through the present invention, the coordinated use of the visualizer and the laryngeal mask is simple and effective. The present invention is easy to operate. It only needs to insert the handle of the visualizer into the corresponding socket to automatically lock it, ensuring a stable image. When taking it out, it only needs to hold the tail end of the handle and rotate the handle. The elasticity of the insertion section of the visualizer in the laryngeal mask itself will cause the handle to automatically pop out of the gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG1 is a schematic structural diagram of a visual medical device (laryngeal mask) provided by the present invention;

[0023] Figure 2 A schematic diagram of the structure of the visual medical device (laryngeal mask) and the visual device provided by the present invention;

[0024] Figure 3 A schematic structural diagram of a first visual device provided by the present invention;

[0025] Figure 4 A schematic diagram of the structure of a second visual device provided by the present invention;

[0026] Figure 5-Figure 8 This is a schematic structural diagram of a third visualizer provided by the present invention. DETAILED DESCRIPTION

[0027] The present invention or the technical solution of the invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings;

[0028] In the description of the present invention, “at least one” means more than one, unless otherwise clearly and specifically defined.

[0029] In the description of the present invention, it should be understood that the terms "near", "far", "top", "inside", "outside", "upper" and "lower" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; in the present application, the proximal end should be interpreted as the part close to the operator (doctor), and the distal end should be understood as the part away from the doctor.

[0030] In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection of two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0031] An embodiment of the present invention provides a laryngeal mask assembly, such as Figure 1 and Figure 2 As shown, the laryngeal mask assembly comprises:

[0032] A laryngeal mask 1 is provided, wherein a visual cavity 13 is formed along its longitudinal extension direction, wherein an observation window 131 is formed at the distal end of the visual cavity 13 and a socket 132 is formed at the proximal end thereof; in the prior art, a user inserts an endoscope into the visual cavity through the socket 132, and an imaging device of the endoscope, such as a camera, reaches the observation window 131, and the front end of the camera is closely attached to the observation window 131, and a clear image is displayed on a corresponding screen (display); during the entire treatment process, a dedicated person is required to hold the endoscope, which is inefficient and inconvenient to use; and the hand-held operation can easily cause the endoscope to shift in the visual cavity, that is, the endoscope is difficult to be stably fixed in the visual cavity, resulting in an unstable or missing image on the screen;

[0033] refer to Figure 1 and Figure 2The laryngeal mask 1 comprises a laryngeal mask body 11 and a ventilation connector 12 connected to the laryngeal mask body 11. It can be understood that the ventilation connector 12 has a ventilation pipe 121 and a connecting pipe 122 arranged adjacent to the ventilation pipe 121. The ventilation pipe 121 is inserted into the ventilation cavity of the laryngeal mask body; the connecting pipe 122 is inserted into the visual channel of the laryngeal mask body to constitute a part of the visual cavity; the ventilation pipe 121 has an outer wall 121A with an arc surface; it can be understood that the ventilation connector is a part of the laryngeal mask, which is detachably arranged on the laryngeal mask body;

[0034] In summary, the laryngeal mask assembly provided by the present invention also includes a visual device, referring to Figure 2 , the visualizer comprises:

[0035] A camera assembly 3, the camera assembly forms an image through an observation window of a visual medical device; optionally, the camera assembly comprises at least a camera and an LED light arranged near the camera;

[0036] Connect line 2, such as Figure 2 The connecting wire extends from the proximal end toward the distal end, and the distal end of the connecting wire is connected to the camera assembly; the connecting wire provided in this embodiment at least includes a wire and a tube wrapped around the wire, and it can be understood that the distal end of the wire is electrically connected to the camera assembly, and the wire extends toward the proximal end for connecting to a display device such as a display, so that the camera assembly outputs the acquired image to the display for display;

[0037] A handle 5, wherein the handle 5 is connected to the connecting line, and the connection here can be a direct connection or a connection through other connecting parts, and the handle 5 is used to control the travel of the connecting line through the handle; the handle 5 controls the connecting line 2 and the camera assembly 3 to be pluggable and matched in the visual cavity 13, so that the camera assembly can reach the observation window 131 at the far end of the visual cavity; in this way, the handle acts on the connecting line to insert the camera assembly into the visual cavity or remove it from the visual cavity, which is convenient for the user to operate;

[0038] A limiting structure, the limiting structure cooperates with the handle 5 to limit the free movement of the camera assembly in the visual cavity; the free movement here refers to the axial and / or radial movement of the connecting wire and the camera assembly in the visual cavity, and the axial movement refers to the movement of the connecting wire and the camera assembly toward the visual cavity socket; the radial movement refers to the radial displacement of the connecting wire and the camera assembly, such as rotation in the visual cavity, and such radial and axial displacements will affect the fixation of the camera assembly in the visual cavity, resulting in the defect that the imaging of the camera assembly is unstable or cannot be imaged; the limiting structure provided by the present invention can limit the free movement of the camera assembly in the visual cavity, so that the visual device is fixed in the visual cavity; in some embodiments of the present invention, the limiting structure at least limits the displacement of the camera assembly in the axial direction; in other embodiments of the present invention, the limiting structure at least limits the displacement of the camera assembly in the radial direction; in some preferred embodiments of the present invention, the limiting structure limits the displacement of the camera assembly in the axial and radial directions;

[0039] The limiting structure provided by the present invention can be realized in various structural forms, including but not limited to interference fit, limiting fit, snap fit, and locking fit, etc.;

[0040] In some embodiments of the present invention, reference Figure 3 , the visual device is interference fit with the visual cavity. Specifically, the handle 5 has an operating part 51 and a connecting part 52 connected to the operating part. The handle 5 is fixedly connected to a connecting line (not shown) through a metal connector 51. The visual cavity adopts a flexible member. The metal connector is interference fit with the visual cavity. The operating part 51 is stuck above the socket 132. In this way, the visual device is prevented from escaping from the visual cavity by the extrusion force through the deformation of the plastic by metal extrusion. As shown in the figure, the cylindrical block at the lower end of the handle squeezes the inner wall of the hole of the joint, and the extrusion force prevents the visual device from easily disengaging without external force. However, in the actual use of the laryngeal mask, when the visual device is inserted into the visual channel and the handle and the joint are in place, when the doctor accidentally touches the handle of the visual device, the visual device will still be disengaged. When the handle is subjected to horizontal force or vertical force, it is easy to disengage from the fitting.

[0041] In other embodiments of the invention, please refer to Figure 4 The limiting structure includes a limiting portion 61, which is arranged on the handle 5. A limiting matching portion 62 is formed in the visible cavity. The handle controls the limiting portion to limit or release the limiting matching portion. When the limiting portion releases the limiting matching portion, the connecting wire and the camera assembly can be removed from the visible cavity; that is, the connecting wire and the camera assembly can be plugged and unplugged in the visible cavity by controlling the position of the limiting portion by the handle; in the embodiment, Figure 4As shown, the limiting portion 61 includes at least one limiting protrusion, and correspondingly, the limiting matching portion 62 includes at least one limiting notch. When the limiting protrusion extends into the limiting notch, the handle is prevented from rotating and popping out due to a horizontal force, and the popping-out situation is improved; however, when subjected to a vertical upward force, the visual device may still pop out;

[0042] In some more preferred embodiments of the present invention, considering that when the visual device is inserted and fixed in the visual cavity, it is preferred to prevent its displacement in the axial and radial directions, the limiting portion 61 and the limiting matching portion 62 provided by the present invention are preferably limited and matched in both the axial and radial directions; the handle controls the limiting portion and has a first position for limiting and matching with the limiting matching portion formed in the visual cavity and a second position for releasing the limiting and matching with the limiting matching portion, and when the limiting portion is in the second position, the camera assembly can be pulled out of the visual cavity; in some embodiments, reference Figure 5 and Figure 6 A limiting protrusion is formed on the connecting portion, and the limiting protrusion 61 has a first limiting surface 611 and a second limiting surface 612; a limiting matching portion is formed at the insertion end of the visual cavity toward the lower side of the visual cavity, and the limiting matching portion has a guide groove 621 and a card groove 622 connected to the guide groove 621, and the card groove 622 has a limiting top and a limiting side wall, and the handle controls the limiting portion to move between the guide groove and the card groove. When the limiting portion is inserted into the card groove, the limiting top is limitedly matched with the first limiting surface, and the second limiting surface is limitedly matched with the limiting side wall; when the limiting portion moves from the card groove to the guide groove, the guide groove allows the limiting portion to escape therefrom; in this way, the limiting portion and the limiting matching portion are limitedly matched in both the axial and radial directions; the limiting protrusion and the limiting matching portion provided by the present invention can be arranged in multiple groups, not limited to one group, which are all covered within the protection scope of the present invention.

[0043] Considering the convenience of use by users such as doctors, the handle 5 is preferably provided with an automatic reset member so that the limit portion can automatically reset to the locked state; in a specific embodiment of the present invention, Figure 7 As shown, an elastic member 7 is provided between the handle and the laryngeal mask, and the handle 5 cooperates with the elastic member 7 to enable it to have a supporting state and a compressed state; when the elastic member 7 is in the compressed state, refer to Figure 6, the limiting portion 61 releases the limiting cooperation with the limiting cooperation portion 62; when the elastic member is in the supporting state, the limiting portion and the limiting cooperation portion are limited and cooperated; when the elastic member changes from the compressed state to the supporting state (i.e., the released state), it applies a force to the limiting portion 61 to move toward the first position (the limiting portion extends into the guide groove), so that the limiting portion and the limiting cooperation portion are limited and cooperated. In this way, through the setting of the elastic member, the handle is constructed as an elastic handle, and the limiting cooperation or release of the limiting portion and the limiting cooperation portion can be achieved by pushing the handle to control the extension and contraction of the elastic member. In addition to the limit cooperation; specifically, in this embodiment, the handle cooperates with the elastic member so that the handle can rotate; the rotation of the handle drives the limit part to rotate between the guide groove and the card slot, so that the user can operate conveniently while realizing the limit cooperation between the visual device and the limit part in the axial and radial directions. The user can pull out the visual device by pushing the handle; when the user pushes the handle to slide the connecting line and the camera assembly into the visual cavity, the limit cooperation part slides into the guide groove, releases the handle, and the limit cooperation part is pushed to the card slot; it is quick and convenient to use, and the camera assembly can be fixed in the visual cavity.

[0044] Optionally, the handle 5 includes an operating portion 51 and a connecting portion 52 connected to the operating portion 51, the connecting portion is connected to a connecting wire, and when the connecting portion and the connecting wire are inserted into the visual cavity, the operating portion and the socket of the visual cavity are against each other, and the limiting portion is arranged on the connecting portion; Figure 7 As shown, the operating portion 51 has an action surface 511, the laryngeal mask has a mating surface 121A that cooperates with the action surface 511, and the elastic member 7 is telescopically arranged between the action surface 511 and the mating surface 121A; the limiting portion 61 responds to the telescopic stroke of the elastic member 7 to enable it to switch between the guide groove and the card groove.

[0045] In this embodiment, reference Figure 8 The elastic member is a retractable marble arranged on the working surface of the operating part, and the marble has a cylindrical retractable head and a spring connected to the retractable head; the marble can be extended to the outside of the handle or retracted to the inside of the handle; the handle rotates relative to the laryngeal mask through the marble, thereby driving the limiting protrusion to move between the guide groove and the card slot; specifically, an installation cavity is formed inside the operating part, and a marble is installed in the installation cavity toward the working surface, and the marble extends or retracts relative to the working surface. When extending, the marble extends out of the installation cavity and abuts against the matching surface of the laryngeal mask, and the visual device is fixed in the visual cavity; when retracting, the marble abuts against the matching surface of the laryngeal mask and retracts into the installation cavity, and the camera assembly can pop out of the visual cavity.

[0046] In some embodiments of the present invention, the handle 5 includes an operating portion 51 and a connecting portion 52 connected to the operating portion 51, one end of the connecting portion 52 is arranged on the operating portion 51 and the other end is connected to the connecting line; the operating portion 51 is arranged perpendicular to the connecting line 2, and the connecting portion 52 is arranged along the extending direction of the connecting line 2. It can be understood that

[0047] Specifically, the connecting line at least includes a wire, one end of which is connected to the camera, and the other end passes through the handle to form a connecting end, and the connecting end is connected to a data connector, such as a USB plug; optionally, the wire has an insertion section for inserting into the visual cavity, and the insertion section is wrapped with a pipe; in this embodiment, the connecting part is fixedly connected to the upper end of the pipe; the pipe includes a metal pipe wrapped around the wire and a heat shrink pipe wrapped around the metal pipe; the extension length of the connecting part and the connecting line is equivalent to the extension length of the visual cavity, so that the camera assembly can Reaching the observation window of the visual cavity; optionally, the connecting portion and the connecting line integrally form an extension section, the extension section has a flexible section at the distal side and a rigid section at the proximal side, the flexible section is suitable for matching with the arc section of the visual cavity, and the rigid section is suitable for matching with the vertical section of the visual cavity; the rigid section can better transmit the insertion force to the front flexible section, ensuring convenient insertion while avoiding the bending of the extension section in the visual cavity; the lower surface of the operating portion 51 is stuck at the upper end of the socket, so that the limiting cooperation of the connecting portion, the connecting line and the visual cavity is controlled by the operating portion 51;

[0048] Specifically, the laryngeal mask 1 includes a laryngeal mask body 11 and a ventilation connector 12 connected to the laryngeal mask body 11. It can be understood that the ventilation connector 12 has a ventilation pipe 121 and a connecting pipe 122 arranged adjacent to the ventilation pipe 121. The connecting pipe 122 is connected to the visual channel of the laryngeal mask body to form a visual cavity; the ventilation pipe 121 has an outer wall 121A with an arc surface; Figure 7 As shown, in the present embodiment, the operating portion is recessed inwardly toward the direction of the ventilation duct of the laryngeal mask body to form an arcuate action surface, which is in contact with the outer wall of the ventilation duct, and the elastic member is telescopically arranged between the action surface and the arcuate outer wall; the action surface rotates toward the outer wall of the ventilation duct, the elastic member retreats to make it in a compressed state, the action surface releases the positioning cooperation with the outer wall of the ventilation duct, and the limiting portion can be disengaged from the limiting cooperation portion of the visible cavity; the action surface rotates away from the outer wall of the ventilation duct, the elastic member extends to make it in a supporting state, the action surface is positioned and cooperated with the outer wall of the ventilation duct, and the limiting portion is limited and cooperated with the limiting cooperation portion; the positioning cooperation here means that the handle and the laryngeal mask body are in a relatively fixed cooperation relationship.

[0049] In addition, the upper end of the ventilation pipe of the ventilation connector is connected to the breathing connector. Due to the existence of the breathing connector, the edge of the breathing connector is above the insertion port of the visualizer, so the handle of the visualizer must have a right-angle turn to bypass the edge. Therefore, the handle provided in this embodiment includes an operating part and a connecting part. One end of the connecting part is arranged on the operating part and the other end is connected to the connecting line; the operating part is arranged perpendicular to the connecting line, and the connecting part is arranged along the extension direction of the connecting line; further, there is also a limit on the height of the operating part. Since the arrangement of the operating part cannot hinder the use of the breathing connector, the extension height of the operating part cannot exceed that of the breathing connector. In this embodiment, the axial spacing H between the bottom side edge of the breathing connector and the socket of the visualizer is 12mm in height; therefore, the extension height of the operating part is ≤12mm. In order to ensure that the visualizer can be smoothly plugged in and out without affecting the breathing connector, the height of the visualizer needs to be less than 8mm; preferably less than 6mm.

[0050] The direction of the handle provided by the present invention is changed from the original horizontal rightward direction to vertical downward direction, which can reduce the probability of hand touching when holding the pen;

[0051] Exemplarily, the present invention provides operating instructions for the visualizer: insertion operation: hold the laryngeal mask with the left hand and the visualizer with the right hand, ensure that the rear end of the visualizer handle is close to the human body, first insert the visualization insertion section into the visual cavity of the laryngeal mask, when the visualizer handle touches the laryngeal mask joint, it is necessary to move the visualizer handle to the left close to the outer wall of the laryngeal mask ventilation duct so that the small marbles are in a compressed state, and then insert it along the visual cavity and the limiting notch, when the lower surface of the operating part is against the visual cavity socket, the handle can be released, and it will automatically rotate to the right and lock under the action of the small marbles; removal operation: push the rear end of the handle to the left, and wait until the handle ribs touch the left wall of the joint notch, and then take the handle out upwards.

[0052] It can be understood that the visualizer provided by the present invention is not only applicable to visual laryngeal masks, but also to other visual medical devices.

[0053] In the description of this specification, the description with reference to the terms "some embodiments", "some implementation methods", "examples", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0054] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A visualizer, characterized in that: The visualizer includes: A camera assembly (3), the camera assembly imaging through the observation window of the laryngeal mask; the laryngeal mask forms a visual cavity along its longitudinal extension direction, the visual cavity (13) forms an observation window (131) at the distal end and a socket (132) at the proximal end, the visual cavity having a guide groove (621) and a slot communicating with the guide groove; A connecting line (2), the connecting line extending from a proximal end toward a distal end, and the distal end of the connecting line (2) being connected to a camera assembly (3); A handle (5), the handle comprising an operating portion and a connecting portion (52) connected to the operating portion (51), the operating portion being arranged perpendicular to the connecting line, the connecting portion being arranged along an extending direction of the connecting line, and the connecting portion being connected to the connecting line; the operating portion being locked above the socket; The connection portion is provided with at least one limiting protrusion (61), the limiting protrusion moves between the guide groove and the clamping groove, and the limiting protrusion can be limitedly matched with the clamping groove in the axial direction and the radial direction; and when the limiting protrusion moves from the clamping groove to the guide groove, the guide groove allows the limiting protrusion to escape therefrom; The handle (5) controls the camera assembly (3) via the connecting line (2) to be pluggable and fit into the visual cavity (13) formed by the laryngeal mask, so that the camera assembly can reach the observation window (131) at the far end of the visual cavity; The visualizer further comprises an elastic member (7) supported and arranged between the handle and the laryngeal mask, wherein the elastic member has a supporting state and a compressed state; when the elastic member is in the compressed state, the limiting protrusion releases the limiting cooperation with the slot; when the elastic member is in the supporting state, the limiting protrusion is in limiting cooperation with the slot.

2. The visualizer according to claim 1, characterized in that The operating portion (51) of the handle (5) drives the camera assembly to be inserted and removed in and out of the visual cavity via the connecting portion (52).

3. The visualizer according to claim 1, characterized in that: The visualizer is configured to have an interference fit with the visual cavity.

4. According to the visualizer according to claim 1, the operating part has an action surface cooperating with the laryngeal mask, the elastic member is telescopically arranged on the action surface, and the limiting protrusion responds to the telescopic stroke of the elastic member to switch it between the first position and the second position.

5. The visualization device according to claim 4, wherein the side of the operating portion cooperating with the laryngeal mask is concave toward the inside to form the action surface (511) of the arc surface, and when the action surface rotates toward the outer wall of the ventilation duct of the laryngeal mask body of the laryngeal mask, the elastic member is retracted to a compressed state, and the limiting protrusion can be disengaged from the guide groove of the visualization cavity; When the action surface rotates away from the outer wall of the ventilation duct of the laryngeal mask body of the laryngeal mask, the elastic member extends out and is in a supporting state, and the limiting protrusion is limitedly matched with the clamping groove.

6. The visualizer according to claim 1, characterized in that: The connecting line at least includes a conductor, one end of which is connected to the camera, and the other end passes through the handle to form a connecting end, and the connecting end is connected to a data connector; the conductor has an insertion section for inserting into the visual cavity, and the insertion section is wrapped with a tube.

7. The visualizer according to claim 6, characterized in that: The handle is made of metal material, and the elastic member is a marble that is retractably arranged on the handle. The marble can extend to the outside of the handle or retract to the inside of the handle. When the handle rotates relative to the laryngeal mask, the limiting protrusion is driven by the marble to move between the guide groove and the card slot.

Images