Soft visual laryngoscope, soft visual laryngoscope assembly and trachea cannula device

Abstract

The utility model discloses a flexible visual laryngoscope, flexible visual laryngoscope assembly and tracheal intubation device, flexible visual laryngoscope includes the mirror body, the mirror body includes control section, lens section and a plurality of locating piece, the locating piece is equipped with the tube cooperation portion, the tube cooperation portion is set to be used for the separable cooperation with tubular structure, and the tube cooperation portion is used for the separable cooperation with the tubular structure. And the control section and the lens section are respectively provided with at least one positioning piece. The positioning piece of the flexible visual laryngoscope is arranged on the control section and the lens section in a separated mode, and when the tracheal catheter moves along the guide tube matched with the positioning piece, the tracheal catheter can bring the guide tube out of the guide tube matching part of the positioning piece. According to the tracheal catheter, the guide tube is positioned at intervals in a sectional mode through the positioning piece, the friction force between the positioning piece and the guide tube is small, the outer diameter of the guide tube can be effectively increased, and therefore the problem that the tracheal catheter is blocked in the process of entering the glottis due to the fact that a gap between the outer wall of the guide tube and the inner wall of the tracheal catheter interferes with pharyngeal cavity tissue is solved.

Description

Technical Field

[0001] This utility model relates to the field of video intubation laryngoscopes, and more specifically, to a flexible video laryngoscope, a flexible video laryngoscope assembly, and a tracheal intubation device. Background Technology

[0002] Flexible video laryngoscopes combine the flexibility of electronic bronchoscopes with the wide field of view of rigid video laryngoscopes, greatly improving the ease of endotracheal tube insertion using video laryngoscopes.

[0003] Existing flexible video laryngoscopes have a protruding guide groove on the outer surface of the scope. The guide groove has an opening, and a flexible liner is placed inside. The guide groove and the flexible liner together form a guide channel. The guide tube used to guide the endotracheal tube can move within the guide channel. During use, the endotracheal tube moves along the guide tube. Simultaneously, as the guide tube is pulled out of the guide channel through the opening on the guide groove, the endotracheal tube moves towards the glottis to enter the trachea.

[0004] Due to the limited size of the pharyngeal cavity, the radial dimension of the endoscope is restricted, which in turn limits the size of the guide channel. Furthermore, the flexible liner further reduces the inner diameter of the guide channel, causing the outer diameter of the guide tube placed within the channel to be narrower due to the restriction of the channel's inner diameter. When the endotracheal tube moves along the guide tube, interference between the gap between the outer wall of the guide tube and the inner wall of the endotracheal tube, and the pharyngeal tissue, can cause the endotracheal tube to become stuck as it enters the glottis.

[0005] Therefore, how to provide a flexible video laryngoscope that can effectively prevent the endotracheal tube from getting stuck in the glottis has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0006] One objective of this invention is to provide a new technical solution for a flexible video laryngoscope that can effectively prevent the endotracheal tube from getting stuck in the glottis.

[0007] According to a first aspect of the present invention, a flexible video laryngoscope is provided.

[0008] The flexible video laryngoscope includes a body, which includes a control section, a lens section, and multiple positioning elements. Each positioning element has a tube fitting portion configured to detachably engage with a tubular structure. At least one positioning element is provided on each of the control section and the lens section.

[0009] Optionally, the positioning member has a positioning cavity for adapting to the tubular structure, the positioning cavity has openings at both ends in the length direction of the positioning member, and the positioning cavity has a disengagement portion extending along the length direction of the positioning member.

[0010] Optionally, the detachment portion is a groove.

[0011] Optionally, at least one of the openings located at both ends of the positioning member along its length direction is provided with a beveled portion.

[0012] Optionally, a support portion extending toward the adjacent positioning member is further provided on the end face of the opening opposite the adjacent positioning member.

[0013] Optionally, the control section is further provided with a guide tube fixing part, which is configured to detachably fix the guide tube, and the guide tube fixing part is located on the side of the positioning member on the control section away from the lens section.

[0014] Optionally, the flexible video laryngoscope further includes a display screen and a handle, the display screen and the endoscope body being respectively disposed at both ends of the handle; and / or

[0015] The lens section is also equipped with a tongue depressor.

[0016] Optionally, the mirror body further includes a curved section, on which at least one of the positioning elements is provided.

[0017] Optionally, the curved section is provided with a snake-bone mechanism; or,

[0018] The curved section comprises segments that are connected by rotation one by one.

[0019] According to a second aspect of the present invention, a flexible video laryngoscope assembly is provided.

[0020] The flexible video laryngoscope assembly includes a guide tube and the flexible video laryngoscope described in this invention.

[0021] Optionally, the guide tube includes a guide core and a guide sleeve, the guide core and the guide sleeve being slidably engaged, and the guide core and / or the guide sleeve being provided with at least one limiting part, the limiting part being configured to control the relative position of the guide core and the guide sleeve.

[0022] Optionally, the guide tube core is provided with two limiting parts, and the sliding stroke of one end of the guide tube sleeve is set to be located between the two limiting parts.

[0023] According to a third aspect of this utility model, an endotracheal intubation device is provided.

[0024] The endotracheal intubation device includes an endotracheal tube and the flexible video laryngoscope assembly described in this utility model.

[0025] The flexible video laryngoscope provided by this utility model has its positioning components separately positioned on the control section and the lens section. When the endotracheal tube moves along the guide tube that mates with the positioning component, the endotracheal tube can be pulled out from the guide tube mating part of the positioning component. By positioning the guide tube in a segmented manner with the positioning component, the friction between the positioning component and the guide tube is reduced, and the outer diameter of the guide tube can be effectively increased. This avoids interference between the outer wall of the guide tube and the inner wall of the endotracheal tube with the pharyngeal tissue, which could cause the endotracheal tube to become stuck during its entry into the glottis.

[0026] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0028] Figure 1 This is a schematic diagram of the structure of an embodiment of the flexible video laryngoscope of this utility model.

[0029] Figure 2 This is a schematic diagram of the structure of the guide tube of the flexible video laryngoscope assembly of this utility model.

[0030] The following are marked in the diagram: Lens body-1, Control section-11, Guide tube fixing part-110, Lens section-12, Positioning part-13, Beveled part-130, Bending section-14, Display screen-2, Handle-3, Guide tube-4, Guide tube core-41, Guide tube sleeve-42, Limiting part-43. Detailed Implementation

[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0032] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0033] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0034] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0035] like Figure 1 As shown, the flexible video laryngoscope provided by this utility model includes a laryngoscope body 1, which includes a control section 11, a lens section 12, and multiple positioning components 13. The control section 11 can be a straight section and is connected to the handle of the flexible video laryngoscope. The control section 11 can have a tubular shape and can be a metal spiral tube, a metal tube, or a rigid plastic tube, etc. The lens section 12 is equipped with a camera unit, through which an image of the front end of the laryngoscope body 1 can be acquired.

[0036] The lens segment 12 can be controlled to move via a pulling mechanism or a driving mechanism, thereby changing the relative positional relationship between the lens segment 12 and the control segment 11. Alternatively, a bending segment can be provided between the control segment 11 and the lens segment 12, and the relative positional relationship between the lens segment 12 and the control segment can be changed through the bending function of the bending segment.

[0037] The positioning element 13 is used to temporarily fix a tubular structure (such as a guide tube or endotracheal tube) to the endoscope 1, and can be separated from the endoscope 1 by external force according to usage requirements. The shape of the positioning element 13 can be flexibly selected according to actual needs. For example, the positioning element 13 has a block structure or a tubular structure, and this utility model does not further limit it in this regard.

[0038] The positioning member 13 is provided with a tube mating portion, which is configured to detachably engage with a tubular structure (such as a guide tube or endotracheal tube). The tube mating portion may be, for example, a protrusion provided on the positioning member 13 that can engage with a groove on the surface of the tubular structure; or, the tube mating portion may be, for example, a groove provided on the positioning member 13 that can engage with a protrusion on the surface of the tubular structure.

[0039] At least one positioning element 13 is provided on both the control section 11 and the lens section 12. The positioning elements 13 on the control section 11 and the lens section 12 can cooperate with the tubular structure to temporarily fix the tubular structure to the endoscope 1. When subjected to external force (such as the endotracheal tube pushing the guide tube, or the operator directly pushing the endotracheal tube), the tubular structure can detach from the endoscope 1.

[0040] In use, the flexible video laryngoscope of this invention is first fixed to the laryngoscope body 1 using the positioning member 13. Then, the laryngoscope body 1 is inserted into the oral cavity, and the position of the lens section 12 is adjusted to expose the glottis. Next, force is applied to the guide tube to move it towards the glottis. Then, the endotracheal tube is inserted into the end of the guide tube, and the endotracheal tube is pushed along the guide tube. As the endotracheal tube moves along the guide tube, it successively separates from the positioning member 13 on the control section 11 and the positioning member 13 on the lens section 12, thus achieving the purpose of the endotracheal tube entering the glottis.

[0041] This flexible video laryngoscope is also suitable for scenarios where a tracheal tube is directly inserted. First, the tracheal tube is fixed to the laryngoscope body 1 using the positioning element 13. Then, the laryngoscope body 1 is inserted into the oral cavity, at which point the tracheal tube enters the pharynx along with the laryngoscope body 1. The position of the lens section 12 is adjusted to expose the glottis. Next, force can be applied directly to the tracheal tube to move it along the positioning elements 13 on the control section 11 and the lens section 12, and after it enters the glottis, the laryngoscope body 1 is withdrawn to separate the tracheal tube from the laryngoscope body 1, thus achieving the purpose of the tracheal tube entering the glottis.

[0042] The flexible video laryngoscope provided by this utility model has a positioning element 13 separately disposed on the control section 11 and the lens section 12. When the endotracheal tube moves along the guide tube that cooperates with the positioning element 13, the endotracheal tube can bring the guide tube out from the guide tube mating part of the positioning element 13. By positioning the guide tube in a segmented manner with the positioning element 13, the friction between the positioning element 13 and the guide tube is small, and the outer diameter of the guide tube can be effectively increased. This avoids the problem of the endotracheal tube getting stuck during the process of entering the glottis due to the interference between the gap between the outer wall of the guide tube and the inner wall of the endotracheal tube and the pharyngeal tissue.

[0043] In one embodiment of the flexible video laryngoscope of this invention, the positioning member 13 is provided with a positioning cavity for adaptation to a tubular structure (guide tube or endotracheal tube). The positioning cavity has openings at both ends along the length of the positioning member 13, and a disengagement portion extending along the length of the positioning member 13. In this embodiment, the positioning member 13 has a structure with openings at both ends and a disengagement portion on the side. The tubular structure can move within the positioning cavity of the positioning member 13, and the tubular structure can detach from the positioning member 13 from the disengagement portion.

[0044] In practice, the detachment part can be a groove, an opening, or a slit closed by a flexible sealing flap.

[0045] Furthermore, the detachment section is grooved.

[0046] Furthermore, at least one opening at both ends of the positioning member 13 along its length is provided with a beveled portion 130. The beveled portion 130 advantageously reduces interference between the positioning member 13 and the endotracheal tube, allowing the endotracheal tube to move more smoothly along the guide tube.

[0047] In one embodiment of the flexible video laryngoscope of this invention, a support portion extending toward the adjacent positioning member 13 is further provided on the end face of the opening opposite to the adjacent positioning member 13. The support portion may have a plate-like structure or a sheet-like structure. The provision of the support portion facilitates guiding and / or supporting the tubular structure to move smoothly and steadily from the previous positioning member 13 (near the display screen) to the next positioning member 13 (away from the display screen).

[0048] In one embodiment of the flexible video laryngoscope of this invention, the control section 11 is further provided with a guide tube fixing part 110. The guide tube fixing part 110 is configured to detachably fix the guide tube, and is located on the side of the positioning member 13 on the control section 11 away from the lens section 12. The guide tube fixing part 110 can fix the side of the guide tube adjacent to the handle to the control section 11, and the guide tube can be engaged with or detached from the guide tube fixing part 110 according to usage requirements.

[0049] The guide tube fixing part 110 may be, for example, a protrusion on the outer surface of the control section 11. The guide tube may be provided with a groove that mates with the protrusion. The guide tube and the guide tube fixing part 110 can be engaged together or separated by the operator through manual operation. Alternatively, the guide tube fixing part 110 may be, for example, a snap fastener on the outer surface of the control section 11. The guide tube can be engaged with or separated from the snap fastener.

[0050] The guide tube fixing part 110 helps to fix the guide tube more reliably to the scope body 1, and avoids the guide tube from accidentally detaching from the scope body 1 uncontrollably, thereby improving the safety of using the flexible video laryngoscope.

[0051] In one embodiment of the flexible video laryngoscope of this utility model, the flexible video laryngoscope further includes a display screen 2 and a handle 3, with the display screen 2 and the laryngoscope body 1 respectively disposed at both ends of the handle 3.

[0052] In one embodiment of the flexible video laryngoscope of this invention, a tongue depressor is also provided on the lens section 12. The tongue depressor can be set on the image acquisition end of the scope body 1 and is used to lift the epiglottis to expose the glottis. When encountering a drooping epiglottis, the tongue depressor can lift the epiglottis to expose the glottis, making the operation simple and convenient. At the same time, the flexible video laryngoscope with a tongue depressor can increase the field of view at the tip of the flexible video laryngoscope during insertion into the oropharyngeal cavity, making it easier to identify the structure of the oropharyngeal cavity.

[0053] In one embodiment of the flexible video laryngoscope of this invention, the scope body further includes a curved section 14, on which at least one positioning element 13 is provided. Providing the positioning element 13 on the curved section 14 facilitates more reliable fixation of the guide tube to the scope body 1, preventing the guide tube from accidentally and uncontrollably detaching from the scope body 1, thereby improving the safety of using the flexible video laryngoscope. Furthermore, it ensures that the guide tube deforms synchronously with the curved section 14 when it bends, effectively preventing the guide tube from bending.

[0054] Furthermore, the curved section 14 is equipped with a snake-bone mechanism. By applying force to the snake-bone mechanism through an angle trigger or knob, the shape of the curved section 14 can be adjusted, thereby changing the direction of the camera end of the lens section 12.

[0055] Furthermore, the bending segment 14 comprises segments that are rotatably connected one by one. These segments are rotatably connected together, and the bending segment 14 is deformed by the traction of a traction mechanism.

[0056] This utility model also provides a flexible video laryngoscope assembly, which includes a guide tube 4 and the flexible video laryngoscope of this utility model.

[0057] In one embodiment of the flexible video laryngoscope assembly of this utility model, such as Figure 2 As shown, the guide tube 4 includes a guide tube core 41 and a guide tube sleeve 42. The guide tube core 41 and the guide tube sleeve 42 are slidably engaged, and at least one limiting part 43 is provided on the guide tube core 41 and / or the guide tube sleeve 42. The limiting part 43 is configured to control the relative position of the guide tube core 41 and the guide tube sleeve 42.

[0058] The aforementioned limiting part 43 is a structure that can control the movement stroke of the guide tube 41 within the guide tube sleeve 42. For example, the limiting part 43 can be a protrusion provided on the guide tube 41. When the guide tube 41 moves within the guide tube sleeve 42 to the point where it abuts against the protrusion at the end of the guide tube sleeve 42, the guide tube 41 can no longer continue to move within the guide tube sleeve 42 in the same direction. Of course, the aforementioned protrusion can also be formed by changing the outer diameter of the guide tube 41. For another example, the outer surface of the guide tube 41 and the inner surface of the guide tube sleeve 42 can each be provided with a mating protrusion. When the protrusion on the guide tube 41 abuts against the protrusion on the guide tube sleeve 42, the guide tube 41 can no longer continue to move within the guide tube sleeve 42 in the same direction.

[0059] With this structure, the end position of the guide tube core 41 can be flexibly adjusted without moving the guide tube sleeve 42, thereby improving the ease of operation of the flexible video laryngoscope assembly.

[0060] Furthermore, the guide tube core 41 is provided with two limiting parts 43, and the sliding stroke of one end of the guide tube sleeve 42 is set to be located between the two limiting parts 43. In specific implementation, one end of the guide tube sleeve 42 can be designed to be tapered, or a protruding structure can be provided on the inner wall of the guide tube sleeve 42.

[0061] This utility model also provides a tracheal intubation device.

[0062] The endotracheal intubation device includes an endotracheal tube and the flexible video laryngoscope or the flexible video laryngoscope assembly of the present invention.

[0063] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A flexible video laryngoscope, characterized in that, The device includes a lens body, which comprises a control section, a lens section, and multiple positioning elements. The positioning elements are provided with tube mating portions, which are configured to detachably engage with a tubular structure. The control section and the lens section are each provided with at least one of the positioning elements.

2. The flexible video laryngoscope according to claim 1, characterized in that, The positioning member has a positioning cavity for adapting to the tubular structure. The positioning cavity has openings at both ends in the length direction of the positioning member, and a disengagement portion extending along the length direction of the positioning member.

3. The flexible video laryngoscope according to claim 2, characterized in that, The detachment section is a groove.

4. The flexible video laryngoscope according to claim 2, characterized in that, At least one of the openings located at both ends of the positioning member along its length is provided with a beveled portion.

5. The flexible video laryngoscope according to claim 2, characterized in that, The end face of the opening opposite the adjacent positioning member is also provided with a support portion extending toward the adjacent positioning member.

6. The flexible video laryngoscope according to claim 1, characterized in that, The control section is also provided with a guide tube fixing part, which is configured to detachably fix the guide tube. The guide tube fixing part is located on the side of the positioning member on the control section away from the lens section.

7. The flexible video laryngoscope according to claim 1, characterized in that, The flexible video laryngoscope also includes a display screen and a handle, the display screen and the endoscope body being respectively disposed at both ends of the handle; and / or The lens section is also equipped with a tongue depressor.

8. The flexible video laryngoscope according to any one of claims 1 to 7, characterized in that, The mirror body also includes a curved section, on which at least one of the positioning elements is provided.

9. The flexible video laryngoscope according to claim 8, characterized in that, The curved section is equipped with a snake-bone mechanism; or... The curved section comprises segments that are connected by rotation one by one.

10. A flexible video laryngoscope assembly, characterized in that, Includes a guide tube and a flexible video laryngoscope as described in any one of claims 1 to 9.

11. The flexible video laryngoscope assembly according to claim 10, characterized in that, The guide tube includes a guide tube core and a guide tube sleeve, the guide tube core and the guide tube sleeve are slidably engaged, and the guide tube core and / or the guide tube sleeve are provided with at least one limiting part, the limiting part being configured to control the relative position of the guide tube core and the guide tube sleeve.

12. The flexible video laryngoscope assembly according to claim 11, characterized in that, The guide tube core is provided with two limiting parts, and the sliding stroke of one end of the guide tube sleeve is set to be located between the two limiting parts.

13. An endotracheal intubation device, characterized in that, It includes a tracheal tube and a flexible video laryngoscope as described in any one of claims 1 to 9 or a flexible video laryngoscope assembly as described in any one of claims 10 to 12.

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