Video laryngoscope and video module

Abstract

The present invention discloses a peep piece module and a video laryngoscope peep piece, comprising an arc-shaped pipe fitting and a tongue depressor, wherein the arc-shaped pipe fitting and the tongue depressor are integrally formed and the tongue depressor is connected to the arc-shaped pipe fitting, the distal end of the arc-shaped pipe fitting is an arc-shaped pipe head, the proximal end of the arc-shaped pipe fitting is an arc-shaped pipe tail, the distal end of the tongue depressor is a tongue depressor, the proximal end of the tongue depressor is a tongue tail, the arc-shaped pipe fitting comprises a first pipe wall located on the outside, a second pipe wall located on the inside, a first pipe side wall located on the front side and connected to the first pipe wall and the second pipe wall, and a second pipe side wall located on the rear side and connected to the first pipe wall and the second pipe wall, wherein the first pipe wall, the second pipe wall, the first pipe side wall and the second pipe side wall are enclosed into an arc-shaped tube cavity. The present invention has the advantages of high strength, high precision, convenient intubation, convenient positioning of camera components, high imaging quality, and can prevent halo or reflection.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a peep film module and a video laryngoscope. Background Art

[0002] At present, when tracheal intubation is performed under general anesthesia or when tracheal intubation is performed in critically ill patients, a laryngoscope is needed to assist in inserting the trachea from the patient's mouth, thereby establishing an artificial airway to help the patient breathe. The success of tracheal intubation is directly related to the patient's life, so it cannot be missed. For this reason, a series of tracheal intubation tools have been developed clinically, such as ordinary laryngoscopes, rigid video laryngoscopes, soft video laryngoscopes, light sticks, etc. These tracheal intubation tools effectively assist clinicians in exposing the glottis to insert the tracheal tube into the trachea.

[0003] For example, the U.S. invention application No. US2013057667A1 discloses a typical rigid video laryngoscope, which is composed of a reusable electronic laryngoscope and a disposable transparent peep piece that matches it. So far, China, the United States and Europe have respectively disclosed a large number of video laryngoscope-related invention patents, and video laryngoscopes have also been widely used in clinical airway intubation. However, a large number of clinical application practices have also exposed many deficiencies in the prior art. The success rate of tracheal intubation, especially the intubation of difficult airways, is directly related to the opening scale, cervical fixation and glottis exposure. The peep piece of a traditional ordinary laryngoscope is made of metal, with precise size and high structural strength, which is conducive to accurately opening or operating laryngeal tissues, but the field of view of these traditional ordinary laryngoscopes is relatively limited, and the peep piece of a video laryngoscope is made of transparent plastic, which has insufficient size accuracy and strength, resulting in defects such as non-overlap between the operating area and the video display area, uneven lighting, and insufficient exposure during clinical application, affecting the efficiency and accuracy of intubation. Summary of the invention

[0004] In order to solve the deficiencies in the prior art, the present invention provides a high-strength peephole module and a video laryngoscope that are convenient for intubation.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The peep piece includes an arc-shaped tube and a tongue depressor. The arc-shaped tube and the tongue depressor are integrally formed and the tongue depressor is connected to the arc-shaped tube. The distal end of the arc-shaped tube is an arc tube head, the proximal end of the arc-shaped tube is an arc tube tail, the distal end of the tongue depressor is a tongue depressor, and the proximal end of the tongue depressor is a tongue piece tail. The arc-shaped tube includes:

[0007] a first tube wall located on the outer side;

[0008] a second tube wall located on the inner side;

[0009] A first tube side wall located at the front side and connected to the first tube wall and the second tube wall;

[0010] A second tube side wall is located at the rear side and connected to the first tube wall and the second tube wall, wherein the first tube wall, the second tube wall, the first tube side wall and the second tube side wall together form an arc-shaped tube cavity, an arc tube head is provided with an irregular vertebral cavity, a side of the arc-shaped tube cavity close to the arc tube tail is sealed, a side of the arc-shaped tube cavity close to the arc tube head is communicated with the irregular vertebral cavity, a side of the irregular vertebral cavity away from the arc tube tail is open, and a tongue depressor is connected to the second tube wall.

[0011] Preferably, the cross-section of the arc-shaped lumen is approximately D-shaped.

[0012] Preferably, the size of the special-shaped vertebral cavity decreases from the arc tube tail to the arc tube head until it becomes equal to the size of the arc-shaped cavity.

[0013] Preferably, a correction ring is provided on the arc tube head, and the correction ring is arranged toward the arc-shaped tube cavity.

[0014] Preferably, the arc-shaped tube and the tongue depressor are injection molded from a polycarbonate material, the first tube wall and the second tube wall are manufactured by a core-pulling process, both of the first tube wall and the second tube wall are arc-shaped, the center of the first tube wall when manufactured by the core-pulling process is O1, and the diameter is D1, the center of the second tube wall when manufactured by the core-pulling process is O2, and the diameter is D2, D1 is greater than D2, the coordinate differences between O1 and O2 are X and Y, the value of X is greater than or equal to 0.3 mm and less than or equal to 3 mm, and the value of Y is greater than or equal to 0.3 mm and less than or equal to 3 mm.

[0015] The present invention also discloses a peep piece module, comprising the peep piece

[0016] Preferably, it further comprises a metal rod, the metal rod is adapted to the peep piece and the metal rod is inserted into the peep piece, the metal rod comprises a rod head at the distal end, a rod tail at the proximal end, and an arc-shaped rod body extending and connected to the rod head and the rod tail, the arc-shaped rod body comprising:

[0017] a first rod wall located on the outside;

[0018] a second rod wall located on the inner side;

[0019] A first rod side wall located at the front side and connected to the first rod wall and the second rod wall;

[0020] A second rod side wall is located at the rear side and connected to the first rod wall and the second rod wall, wherein the first rod wall, the second rod wall, the first rod side wall and the second rod side wall together form an arc-shaped rod cavity, a straight column cavity is provided on the rod head, the arc-shaped rod cavity is open on one side close to the rod tail, the arc-shaped rod cavity is communicated with the straight column cavity on one side close to the rod head, and the straight column cavity is open on one side away from the rod tail, a special-shaped rod cone is provided on the rod tail, and a limiting step is provided at the connection between the special-shaped rod cone and the rod tail.

[0021] Preferably, the cross-section of the arc-shaped rod cavity is approximately D-shaped.

[0022] Preferably, the size of the vertebral body of the special-shaped rod decreases from the rod tail to the rod head until it becomes equal to the size of the arc-shaped rod body.

[0023] Preferably, a director is provided at the connection between the arc-shaped rod cavity and the straight column cavity.

[0024] Preferably, the end of the first rod side wall and the end of the first rod wall at the rod head form a first load-bearing shoulder, and the end of the second rod side wall and the end of the second rod wall at the rod head form a second load-bearing shoulder, and the wall thickness of the first load-bearing shoulder and the second load-bearing shoulder is greater than or equal to three times the minimum wall thickness of the arc-shaped rod body.

[0025] Preferably, the special-shaped vertebral rod body is adapted to the special-shaped vertebral cavity, the arc-shaped rod body is adapted to the arc-shaped tubular cavity, the arc-shaped rod body and the rod head are inserted into the arc-shaped tubular cavity, the special-shaped vertebral rod body and the special-shaped vertebral cavity have a transition fit or an interference fit, the arc-shaped rod body and the arc-shaped tubular cavity have an interference fit, a top gap is formed between the first rod wall and the first tube wall, a bottom gap is formed between the second rod wall and the second tube wall, a first side gap is formed between the first tube side wall and the first rod side wall, a second side gap is formed between the second tube side wall and the second rod side wall, and the sum of the top gap and the bottom gap is less than the sum of the first side gap and the second side gap.

[0026] Preferably, it also includes a camera assembly, which is installed on the straight column cavity. The camera assembly includes a flexible PCBA, an LED light source, a head end seat and a packaging tube. The head end seat includes a packaging flange, a light strip flange and a head end face which are arranged in sequence from the rod tail to the rod head. The diameter of the packaging flange is greater than the diameter of the light strip flange, the diameter of the light strip flange is greater than the diameter of the head end face, the thickness of the packaging flange is less than the thickness of the light strip flange, the thickness of the light strip flange is less than the thickness of the head end face, a V-shaped correction groove is provided on the side of the head end face close to the rod head, a chip cavity, a lens cavity and a lens cavity are provided on the head end seat, the camera chip of the flexible PCBA is installed in the chip cavity, the camera of the flexible PCBA is installed in the lens cavity, the LED light source is installed on the light strip flange, the packaging tube is installed on the packaging flange, and an orientation foot is provided on the side of the head end seat close to the rod tail, the orientation foot is plugged into the orienter, the correction groove is adapted to the correction ring and the correction ring is clamped on the correction groove.

[0027] Preferably, the head end seat is provided with a positioning cylinder, and the angle between the axis of the chip cavity of the head end seat and the positioning cylinder is A1, and A1 is greater than or equal to 3° and A1 is less than or equal to 12°.

[0028] The present invention also discloses a video laryngoscope, comprising an image processing and display unit, a handle assembly and the above-mentioned peep film module. The image processing and display unit and the above-mentioned peep film module are both connected to the handle assembly.

[0029] By adopting the above technical solution, the present invention has the following beneficial effects:

[0030] (1) The peep piece of the present invention is provided with an arc-shaped tubular cavity and a special-shaped vertebral cavity. When in use, the arc-shaped tubular cavity is used for installing the arc-shaped rod body and the rod head of the subsequent metal rod, and the special-shaped vertebral cavity is used for installing the special-shaped rod vertebral body. When designing, the special-shaped vertebral rod body and the special-shaped vertebral cavity are transitionally matched or interference-matched, and the arc-shaped rod body and the arc-shaped tubular cavity are interference-matched, which is convenient for the overall insertion of the arc-shaped rod body and a certain limit of the special-shaped vertebral rod body. This design fully considers the overall strength of the peep piece and a certain support effect on the metal rod. Moreover, due to the interference fit between the arc-shaped rod body and the arc-shaped tubular cavity, the metal rod is very smooth when inserted into the peep piece and is slowly limited and positioned until the special-shaped vertebral rod body contacts the special-shaped vertebral cavity. The design is ingenious.

[0031] (2) The arc-shaped tube of the present invention is integrally formed with a tongue depressor to facilitate tongue depressing and tube insertion, and the arc-shaped tube and the tongue depressor are injection molded from polycarbonate material, which has greater strength. The peep piece is made by a core-pulling process during specific production, and the present invention clearly defines the position of the center of the circle when producing the first tube wall and the second tube wall, so that the precision is higher during specific production;

[0032] (3) The end of the first rod side wall and the end of the first rod wall at the rod head of the present invention form a first load-bearing shoulder, and the end of the second rod side wall and the end of the second rod wall at the rod head form a second load-bearing shoulder. The wall thickness of the first load-bearing shoulder and the second load-bearing shoulder is greater than or equal to three times the minimum wall thickness of the arc-shaped rod body. Compared with the prior art, the prior art adopts a method of making the wall thickness of the entire metal rod uniform in order to increase the strength. In this way, the volume of the entire metal rod is relatively large. In the present invention, the wall thickness is the thickest at the end of the metal rod that is inserted into the human body at the farthest end and bears the greatest strength, that is, the first load-bearing shoulder and the second load-bearing shoulder, and the wall thickness at other positions is relatively small. In this way, the size of the metal rod of the present invention and other components on the metal rod when inserted into the human body can be reduced to a sufficiently low level, so that it can be compatible with newborns, children, ordinary adults, obese adults, people with difficulty in walking, etc. to a certain extent, thereby minimizing the differences between different groups of people;

[0033] (4) The special-shaped vertebral rod body of the present invention has a transition fit or interference fit with the special-shaped vertebral cavity, the arc-shaped rod body has an interference fit with the arc-shaped tube cavity, a top gap is formed between the first rod wall and the first tube wall, a bottom gap is formed between the second rod wall and the second tube wall, a first side gap is formed between the first tube side wall and the first rod side wall, and a second side gap is formed between the second tube side wall and the second rod side wall. The sum of the top gap and the bottom gap is smaller than the sum of the first side gap and the second side gap. This design facilitates the installation of the peep blade before use and the removal of the peep blade after use, and ensures that the peep blade will not be displaced even if it is subjected to external force during use, thereby affecting the surgical field of view;

[0034] (5) The orientation foot of the present invention is inserted into the orientation device, the camera assembly is installed in the straight column cavity, and the correction groove is adapted to the correction ring and the correction ring is clamped on the correction groove, which is convenient for positioning in specific applications and prevents the camera assembly from being displaced by external force and affecting normal use;

[0035] (6) A V-shaped correction groove is provided on one side of the head end surface of the present invention near the rod head. The correction groove can not only cooperate with the correction ring for positioning, but also prevent the area near the LED light source on the head end seat from being emitted or refracted and entering the lens cavity, thereby avoiding affecting the field of view of the camera of the flexible PCBA, avoiding the phenomenon of halo or reflection, and further improving the imaging quality;

[0036] In summary, the present invention has the advantages of high strength, high precision, easy intubation, easy positioning of camera components, high imaging quality, and the ability to prevent halo or reflection. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of the peep piece of the present invention;

[0038] Figure 2 yes Figure 1 Schematic diagram of the structure in another direction;

[0039] Figure 3 yes Figure 2 Sectional view in the AA direction;

[0040] Figure 4 is a schematic diagram of the structure of the metal rod of the present invention in one direction;

[0041] Figure 5 yes Figure 4 Sectional view in the middle BB direction;

[0042] Figure 6 is a schematic structural diagram of the peep piece module of the present invention in another direction;

[0043] Figure 7 yes Figure 6 Sectional view in the CC direction;

[0044] Figure 8 yes Figure 7 The enlarged view of P in the middle;

[0045] Fig. 9 yes Figure 7 The enlarged view of the M in the middle;

[0046] Fig.10 is an exploded view of the camera assembly of the present invention;

[0047] Fig.11It is a schematic structural diagram of the head end seat of the present invention;

[0048] Fig.12 yes Fig.11 Cross-sectional view in the middle DD direction;

[0049] Fig.13 is a schematic structural diagram of a head end seat in another embodiment;

[0050] Fig.14 yes Fig.13 A schematic diagram of the structure in one direction;

[0051] Fig.15 yes Fig.14 Cross-sectional view in the EE direction;

[0052] Fig.16 yes Fig.13 A schematic diagram of the structure of the head end seat in the present invention applied to the peep piece module;

[0053] Fig.17 yes Fig.16 Cross-sectional view in the FF direction;

[0054] Fig.18 yes Fig.17 Enlarged view of R in the middle;

[0055] Fig.19 is a schematic structural diagram of a head end seat in another embodiment;

[0056] Fig. 20 yes Fig.19 A schematic diagram of the structure in one direction;

[0057] Fig.21 yes Fig. 20 Cross-sectional view in the GG direction;

[0058] Fig. 22 yes Fig.19 A schematic diagram of the structure of the head end seat in the present invention applied to the peep piece module;

[0059] Fig.23 yes Fig. 22 Sectional view in the II direction;

[0060] Fig.24 yes Fig.23 The enlarged view of S in the middle;

[0061] Fig.25 The structure diagram of the peep piece module of the present invention in one direction when the peep piece is removed;

[0062] Fig.26 yes Fig.25 A partial view of

[0063] Fig. 27 is a schematic structural diagram of the video laryngoscope of the present invention in another direction;

[0064] Fig.28 is a structural schematic diagram of the video laryngoscope of the present invention in another direction when the peep blade is removed;

[0065] Among them, tongue depressor 1, arc tube head 2, arc tube tail 3, tongue depressor 4, tongue tail 5, first tube wall 6, second tube wall 7, first tube side wall 8, second tube side wall 9, arc tube cavity 10, special-shaped vertebral cavity 11, correction ring 12, spring buckle 13, process hole 14, rod head 15, rod tail 16, first rod wall 17, second rod wall 18, first rod side wall 19, The second rod side wall 20, the arc-shaped rod cavity 21, the straight column cavity 22, the special-shaped rod cone 23, the limiting step 24, the orienter 25, the first load-bearing shoulder 26, the second load-bearing shoulder 27, the top gap 28, the bottom gap 29, the card slot 30, the LED light source 31, the packaging tube 32, the packaging flange 33, the light strip flange 34, the head end face 35, the correction groove 36, the chip cavity 37, the lens cavity 38, the lens cavity 39, the camera chip 40, the camera 41, the orienting foot 42, the image processing and display unit 43, the handle assembly 44, the shell 431, the display screen assembly 432, the main control board assembly 433, the handle shaft 441, the handle shell 442, the battery 443, the positioning cylinder 50, and the bevel 51. DETAILED DESCRIPTION

[0066] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0067] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0068] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0069] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0070] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] All descriptions of the internal and external directions in this invention are based on Figure 1 The inside and outside are described in the description, that is, when the subsequent peep piece module is defined in the inside and outside directions, the metal rod and other components are inserted into the inside and outside of the peep piece definition.

[0072] Example 1

[0073] like Figure 1 and Figure 2As shown, in this embodiment, the present invention discloses a peep piece, including an arc-shaped tube and a tongue depressor 1, the arc-shaped tube and the tongue depressor 1 are integrally formed and the tongue depressor 1 is connected to the arc-shaped tube. It can be understood that the arc-shaped tube and the tongue depressor 1 are a whole and are integrally formed during production. The distal end of the arc-shaped tube is an arc tube head 2, and the proximal end of the arc-shaped tube is an arc tube tail 3. It can also be understood that the arc-shaped tube includes the arc tube head 2 located at the distal end, the arc tube tail 3 at the proximal end, and an arc tube body extending and connected between the arc tube head 2 and the arc tube tail 3. The distal end of the tongue depressor 1 is a tongue depressor 4, and the proximal end of the tongue depressor 1 is a tongue tail 5. The arc-shaped tube includes a first tube wall 6 located on the outside, a second tube wall 7 located on the inside, a first tube side wall 8 located on the front side and connected to the first tube wall 6 and the second tube wall 7, and a second tube side wall 9 located on the rear side and connected to the first tube wall 6 and the second tube wall 7, wherein the first tube wall 6, the second tube wall 7, the first tube side wall 8 and the second tube side wall 9 are connected to the first tube wall 6 and the second tube wall 7. The wall 9 encloses an arc-shaped tube cavity 10 (the arc-shaped tube cavity 10 here does not include the part on the arc tube head 2), and a special-shaped vertebral cavity 11 is provided on the arc tube head 2. It can be understood that the special-shaped vertebral cavity 11 can be a part of the arc-shaped tube cavity 10, but it is set as a special-shaped tube cavity for subsequent installation needs. The side of the arc-shaped tube cavity 10 close to the arc tube tail 3 is sealed, and the side of the arc-shaped tube cavity 10 close to the arc tube head 2 is communicated with the special-shaped vertebral cavity 11. The side of the special-shaped vertebral cavity 11 away from the arc tube tail 3 is open. The tongue depressor 1 is connected to the second tube wall 7, that is, the tongue depressor 1 is located on one side of the second tube wall 7 and connected to the arc-shaped tube fitting. There is also a process hole 14 for production between the tongue depressor 1 and the arc tube fitting. A spring buckle 13 is provided on the side of the arc tube tail 3. The setting of the spring buckle 13 is mainly convenient for the subsequent insertion of a metal rod. When the metal rod needs to be inserted, the spring piece can be pressed to play a certain prying role on the special-shaped vertebral cavity 11, so that the special-shaped vertebral cavity 11 can be pried to a certain extent.

[0074] Please continue to refer to Figure 2 and Figure 3 The cross section of the arc-shaped lumen 10 is approximately D-shaped, and the size of the peripheral side wall of the special-shaped vertebral cavity 11 is larger than the size of the arc-shaped lumen 10. The size here can be understood as the diameter, that is, the diameter of the special-shaped vertebral cavity 11 is larger than the diameter of the arc-shaped lumen 10, and the size of the special-shaped vertebral cavity 11 changes gradually. The size of the special-shaped vertebral cavity 11 decreases from the arc tube tail 3 to the arc tube head 2 until it is equal to the size of the arc-shaped lumen 10. The setting of the special-shaped vertebral cavity 11 is mainly to perform a certain limiting effect;

[0075] In order to further perform positioning and ensure the stability of imaging when the peep piece of the present invention is subsequently used in specific imaging applications, a correction ring 12 is provided on the arc tube head 2 , and the correction ring 12 is arranged toward the arc tube cavity 10 .

[0076] Example 2

[0077] Please refer to Figure 3The peep piece of the present invention is integrally formed, so it is specifically produced by an injection molding machine. The arc-shaped tube and the tongue depressor 1 are injection-molded by polycarbonate material. The peep piece made of this material has high strength and is easy to control the accuracy during the injection molding process. The first tube wall 6 and the second tube wall 7 of the peep piece of the present invention are both arc-shaped. During specific production, the first tube wall 6 and the second tube wall 7 are processed by a core-pulling process. In the prior art, the manufacture of similar arc-shaped tubes is a core-pulling structure of an arc-shaped tube cavity 10 including a long arm, which is difficult to manufacture. In order to ensure dimensional accuracy, it is usually necessary to set the first tube wall 6 and the second tube wall 7 to be concentric circle core-pulling, and the size of these similar arc-shaped tubes needs to be made sufficient It is large enough to improve the core pulling strength. In the present invention, non-concentric circle core pulling is adopted in the production of the first tube wall 6 and the second tube wall 7, wherein the center of the first tube wall 6 when processed by the core pulling process is O1 and the diameter is D1, and the center of the second tube wall 7 when processed by the core pulling process is O2 and the diameter is D2, D1 is greater than D2, the coordinate difference between O1 and O2 is X and Y, that is, the horizontal coordinate difference is X, and the longitudinal coordinate difference is Y, the value of X is greater than or equal to 0.3mm and less than or equal to 3mm, and the value of Y is greater than or equal to 0.3mm and less than or equal to 3mm. In specific production, through virtual modeling and simulated injection molding analysis, as well as practical verification, this setting is conducive to achieving precision molding and reducing defects under the condition of smaller core pulling size.

[0078] Example 3

[0079] Please refer to Figure 4 and Figure 5The present invention discloses a metal rod, which can be adapted for use with the peep piece in Example 1 or 2. Specifically, the metal rod can be inserted into the peep piece in Example 1 or 2 for use. The metal rod includes a rod head 15 located at a distal end, a rod tail 16 located at a proximal end, and an arc-shaped rod body extending and connected to the rod head 15 and the rod tail 16. The arc-shaped rod body includes a first rod wall 17 located at an outer side, a second rod wall 18 located at an inner side, a first rod side wall 19 located at a front side and connected to the first rod wall 17 and the second rod wall 18, and a second rod side wall 20 located at a rear side and connected to the first rod wall 17 and the second rod wall 18. The first rod wall 17, the second rod wall 18, the first rod side wall 19, and the second rod side wall 20 together form an arc-shaped rod. Cavity 21, a straight column cavity 22 is provided on the rod head 15, that is, the straight column cavity 22 is located on the inner side of the rod head 15, a card slot 30 is provided between the connection between the straight column cavity 22 and the arc rod cavity 21, and the card slot 30 is used for subsequent matching and installation with other parts, the arc rod cavity 21 is open on one side close to the rod tail 16, the arc rod cavity 21 is communicated with the straight column cavity 22 on one side close to the rod head 15, and the straight column cavity 22 is open on one side away from the rod tail 16, and a special-shaped rod cone 23 is provided on the rod tail 16, and a limit step 24 is provided at the connection between the special-shaped rod cone 23 and the rod tail 16. It can be understood that the setting of the limit step 24 can prevent the entire metal rod from being fully inserted into the peep piece, that is, the limit step 24 is convenient for prompting the user of the present invention to insert the specific depth;

[0080] Please refer to Figure 5The cross-section of the arc-shaped rod cavity 21 is approximately D-shaped, wherein the peripheral dimension of the special-shaped rod vertebral body 23 is larger than the dimension of the entire arc-shaped rod body, and the dimension of the special-shaped rod vertebral body 23 changes gradually. Specifically, the dimension of the special-shaped rod vertebral body 23 decreases from the rod tail 16 to the rod head 15 until it is equal to the dimension of the arc-shaped rod body. The dimension here can also be understood as a diameter. The metal rod is specifically formed as a whole by a metal powder injection process or a metal die-casting process. In the prior art, the overall wall thickness of the metal rod is usually designed to be uniform, that is, the ratio of the wall thickness at the thickest point to the thinnest point is less than or equal to 1.5, so as to prevent defects such as shrinkage, deformation or cracks. In the present invention, the end of the first rod side wall 19 at the rod head 15 and the end of the first rod wall 17 form a first load-bearing shoulder 26, and the rod head 1 The ends of the second rod side walls 20 and the ends of the second rod wall 18 at 5 positions form a second load-bearing shoulder 27, and the wall thickness of the first load-bearing shoulder 26 and the second load-bearing shoulder 27 is greater than or equal to three times the minimum wall thickness of the arc-shaped rod body. This design can minimize the size of the working parts entering the patient's mouth, thereby solving the problem that the same metal rod and the peep piece on the metal rod are currently difficult to be compatible with a variety of usage environments such as newborns, children, ordinary adults, obese adults, and difficult airways. More specifically, the metal rod is mainly provided for the purpose of mounting the peep piece and installing the camera assembly for use. For the subsequent positioning and installation of the camera assembly, a director 25 is provided at the connection between the arc-shaped rod cavity 21 and the straight column cavity 22. It can be understood that the director 25 is specifically provided on the first rod wall 17 and / or the second rod wall 18.

[0081] Example 4

[0082] Please refer to Figure 10-12The present invention also discloses a camera assembly, which can be applied to a video laryngoscope. More specifically, it can be used in conjunction with the metal rod of Example 3 to further install a peep piece for use. Specifically, the camera assembly includes a flexible PCBA, an LED light source 31, a head end seat and a packaging tube 32. The packaging tube 32 is a cylindrical structure with open ends on both sides. The head end seat includes a packaging flange 33, a light strip flange 34 and a head end face 35 arranged in sequence. The diameter of the packaging flange 33 is greater than the diameter of the light strip flange 34, the diameter of the light strip flange 34 is greater than the diameter of the head end face 35, the thickness of the packaging flange 33 is less than the thickness of the light strip flange 34, the thickness of the light strip flange 34 is less than the thickness of the head end face 35, and a V-shaped correction groove 36 is provided on the side of the head end face 35 away from the light strip flange 34. There are chip cavity 37, lens cavity 38 and lens cavity 39, the camera chip 40 of the flexible PCBA is installed in the chip cavity 37, the camera 41 of the flexible PCBA is installed in the lens cavity 38, the LED light source 31 is installed on the light strip flange 34, the packaging tube 32 is installed on the packaging flange 33, the lens cavity 39 is used to install the protective lens of the camera 41, and the head end seat is also provided with a wire passing notch for wiring. The packaging tube 32 is filled with glue, that is, the glue is filled on all components such as the flexible PCBA, LED light source 31, head end seat and packaging tube 32. It can be understood that the flexible PCBA of the present invention includes a camera chip 40 and a camera 41, and is packaged according to the above description and finally forms a camera assembly. The camera assembly disclosed in this embodiment can be applied to a video laryngoscope.

[0083] Example 5

[0084] Please refer to Figure 1-3 as well as Figure 6-9 This embodiment discloses a peep piece module, including the peep piece of embodiment 1 or / and 2, that is, the peep piece of embodiment 1 or / and 2 can be applied in the peep piece module for further application.

[0085] Example 6

[0086] Please refer to Figure 4-9 This embodiment discloses a peep piece module, including the metal rod of embodiment 3, that is, the metal rod of embodiment 3 can be applied to the peep piece module for further application.

[0087] Example 7

[0088] Please refer to Figure 4-12 This embodiment discloses a peep film module, including the camera assembly of embodiment 4, that is, the camera assembly of embodiment 4 can be applied to the peep film module for further application.

[0089] Example 8

[0090] Please refer to Figure 1-9 This embodiment discloses a peep piece module, including the peep piece of embodiment 1 or / and 2 and the metal rod of embodiment 3, that is, the peep piece of embodiment 1 or / and 2 and the metal rod of embodiment 3 can be applied in the peep piece module for further application.

[0091] Example 9

[0092] Please refer to Figure 1-9 This embodiment discloses a peep piece module, including the peep piece of embodiment 1 or / and 2 and the camera assembly of embodiment 4, that is, the peep piece of embodiment 1 or / and 2 and the camera assembly of embodiment 4 can be applied in the peep piece module for further application.

[0093] Example 10

[0094] Please refer to 1-12. This embodiment discloses a peep piece module, including the peep piece of embodiment 1 or / and 2, the metal rod of embodiment 3 and the camera assembly of embodiment 4. Specifically, the camera assembly in the peep piece module is installed on the straight column cavity 22, that is, the camera assembly is located on the inner side of the straight column cavity 22. More specifically, the side of the camera assembly close to the arc rod cavity 21 can be clamped on the card slot 30, and the head end seat includes a packaging flange 33, a light strip flange 34 and a head end face 35 arranged in sequence. Specifically, the head end seat includes a packaging flange 33, a light strip flange 34 and a head end face 35 which are sequentially arranged along the rod tail 16 toward the rod head 15. A V-shaped correction groove 36 is arranged on the side of the head end face 35 away from the light strip flange 34. More specifically, a V-shaped correction groove 36 is arranged on the side of the head end face 35 close to the rod head 15. An orientation foot 42 is arranged on the side of the head end seat close to the rod tail 16. An orientation device 25 is arranged at the connection between the arc rod cavity 21 and the straight column cavity 22. The orientation foot 42 is plugged into the orientation device 25. The correction groove 36 is adapted to the correction ring 12 and the correction ring 12 is clamped on the correction groove 36. The special-shaped vertebral rod body of the present invention is adapted to the special-shaped vertebral cavity 11, the arc-shaped rod body is adapted to the arc-shaped tubular cavity 10, the arc-shaped rod body and the rod head 15 are inserted into the arc-shaped tubular cavity 10, that is, the arc-shaped rod body and the rod head 15 are located on the inner side of the arc-shaped tubular cavity 10, the special-shaped vertebral rod body and the special-shaped vertebral cavity 11 are transitionally matched or interference-fitted, the arc-shaped rod body and the arc-shaped tubular cavity 10 are interference-fitted, and the first rod wall 17 is connected to the first tubular wall 6, a top gap 28 is formed between the second rod wall 18 and the second tube wall 7, a bottom gap 29 is formed between the first tube side wall 8 and the first rod side wall 19, and a second side gap is formed between the second tube side wall 9 and the second rod side wall 20. The sum of the top gap 28 and the bottom gap 29 is smaller than the sum of the first side gap and the second side gap. This design facilitates the installation of the peep piece before use and the removal of the peep piece after use, and ensures that the peep piece will not be displaced in time when it is subjected to external force during use, thereby affecting the surgical field of view;

[0095] Furthermore, the orienting foot 42 of the present invention is inserted into the orienter 25, the camera assembly is installed in the straight column cavity 22, and the correction groove 36 is adapted to the correction ring 12 and the correction ring 12 is clamped on the correction groove 36, which is convenient for positioning in specific applications to prevent the camera assembly from being displaced by external force and affecting normal use. The head end face 35 of the present invention is provided with a V-shaped correction groove 36 on the side close to the rod head 15. The correction groove 36 can not only cooperate with the correction ring 12 for positioning, but the setting of the correction groove 36 can prevent the area on the head end seat near the LED light source 31 from being emitted or refracted and entering the lens cavity 39, thereby avoiding affecting the field of view of the camera 41 of the flexible PCBA, avoiding halo or reflection phenomena, and further improving the imaging quality.

[0096] Embodiment 11

[0097] Please refer to Figure 13-18 as well as Figure 25-26 In this embodiment, the main difference between this embodiment and embodiment 10 is that the structure of the head end seat is different. Specifically, the head end seat is provided with a positioning cylinder 50, and the angle between the axis of the chip cavity of the head end seat and the positioning cylinder 50 is A1, and A1 is greater than or equal to 3° and A1 is less than or equal to 12°. More preferably, 4°≤A1≤8°. When using a video laryngoscope for intubation clinically, a clear and complete display of the glottis is required, and the airway structures of different people are different, resulting in slightly different glottis positions. Setting according to this angle is beneficial to a variety of clinical scenarios. The glottis can be clearly and completely displayed. For specific reference Fig.25 and 26 The LED light source is 6 LED lights evenly distributed along the camera. Fig.26 For example, Fig.26 At this time, the bottom LED light is removed (according to Figure 1 The middle direction description should be the top LED light). Removing this LED light will help highlight the image of the glottis and allow for more accurate intubation.

[0098] Example 12

[0099] Please refer to Figure 19-26 In this embodiment, the main difference between this embodiment and embodiment 10 and embodiment 11 is that the structure of the head end seat is different. Specifically, the head end seat is provided with a positioning cylinder 50, and the angle between the axis of the chip cavity of the head end seat and the positioning cylinder 50 is A1, and A1 is greater than or equal to 3° and A1 is less than or equal to 12°. More preferably, 4°≤A1≤8°. When using a video laryngoscope for intubation clinically, a clear and complete display of the glottis is required, and the airway structures of different people are different, resulting in slightly different glottis positions. Setting according to this angle is beneficial to a variety of clinical scenarios. The glottis can be clearly and completely displayed. For specific reference Fig.25 and 26 The LED light source is 6 LED lights evenly distributed along the camera. Fig.26 For example, Fig.26 At this time, the bottom LED light is removed (according to Figure 1 The middle direction description should be the top LED light). Removing this LED light will help highlight the image of the glottis and allow for more accurate intubation.

[0100] In this embodiment, the positioning cylindrical surface 50 of the head end seat is provided with a bevel 51 downward, and the head end seat is not regular, but an inclined special-shaped part. In specific applications, the side of the head end seat with the bevel 51 is close to the side of the straight column cavity close to the arc rod cavity. The straight column cavity is not a cavity similar to a cylinder at this time, but a column with a bevel and is compatible with the head end seat. More specifically, the side of the head end seat without the bevel 51 is close to the side of the straight column cavity away from the arc rod cavity. This side is a bevel at this time. The peep piece is also compatible with the head end seat and the metal rod at this time, and the side of the peep piece close to this side is also a bevel. The camera is used by passing through the bevel of the peep piece. The head end seat of embodiments 11 and 12 can also be provided with a correction groove 36 for positioning.

[0101] Embodiment 13

[0102] Please refer to Figure 1-27 The present invention also discloses a video laryngoscope, including one or more of all the above-mentioned embodiments, wherein the video laryngoscope of this embodiment may include any of the above-mentioned peep blade modules, and the video laryngoscope of this embodiment also includes an image processing and display unit 43 and a handle assembly 44, the image processing and display unit 43 and the described peep blade module are connected to the handle assembly 44, it can be understood that the handle assembly 44 includes a handle shaft 441, a handle shell 442 and a battery 443, the battery 443 is located on the handle shell 442, that is, the battery 443 is located on the handle shell 442. On the inner side of the handle shell 442, the peep film module is connected to one end of the handle shell 442, and the other end of the handle shell 442 is connected to the image processing and display unit 43 through the handle shaft 441. The image processing and display unit 43 includes a shell 431, a display screen assembly 432 and a main control board assembly 433. The display screen assembly 432 and the main control board assembly 433 are both arranged on the shell 431, and the display screen assembly 432 is used for video display, and the main control board assembly 433 is used for control driving. The main control board assembly 433 is electrically connected to the camera assembly, the LED light source 31 and the battery 443.

[0103] This embodiment does not impose any formal limitation on the shape, material, structure, etc. of the present invention. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A peep film module, characterized in that: The peep piece includes an arc-shaped pipe fitting and a tongue depressor. The arc-shaped pipe fitting and the tongue depressor are integrally formed and the tongue depressor is connected to the arc-shaped pipe fitting. The distal end of the arc-shaped pipe fitting is the arc pipe head, the proximal end of the arc-shaped pipe fitting is the arc pipe tail, the distal end of the tongue depressor is the tongue depressor, and the proximal end of the tongue depressor is the tongue piece tail. The arc-shaped pipe fitting includes: a first tube wall located on the outer side; a second tube wall located on the inner side; A first tube side wall located at the front side and connected to the first tube wall and the second tube wall; A second tube side wall located at the rear side and connected to the first tube wall and the second tube wall, wherein the first tube wall, the second tube wall, the first tube side wall and the second tube side wall together form an arc-shaped tube cavity, a special-shaped vertebral cavity is provided on the arc tube head, a side of the arc-shaped tube cavity close to the arc tube tail is sealed, a side of the arc-shaped tube cavity close to the arc tube head is communicated with the special-shaped vertebral cavity, a side of the special-shaped vertebral cavity away from the arc tube tail is open, and a tongue depressor is connected to the second tube wall; The cross-section of the arc-shaped lumen is approximately D-shaped; The size of the special-shaped vertebral cavity decreases from the arc tube tail to the arc tube head until it is equal to the size of the arc tube cavity; The arc tube head is provided with a correction ring, which is arranged toward the arc-shaped tube cavity; The arc-shaped tube and tongue depressor are injection molded by polycarbonate material, the first tube wall and the second tube wall are made by core-pulling process, the first tube wall and the second tube wall are both arc-shaped, the center of the first tube wall when processed by core-pulling process is O1, the diameter is D1, the center of the second tube wall when processed by core-pulling process is O2, the diameter is D2, D1 is greater than D2, the coordinate difference between O1 and O2 is X and Y, the value of X is greater than or equal to 0.3mm and less than or equal to 3mm, and the value of Y is greater than or equal to 0.3mm and less than or equal to 3mm; The device further comprises a metal rod, which is adapted to the peep piece and is inserted into the peep piece. The metal rod comprises a rod head at a distal end, a rod tail at a proximal end, and an arc-shaped rod body extending and connected to the rod head and the rod tail. The arc-shaped rod body comprises: a first rod wall located on the outside; a second rod wall located on the inner side; A first rod side wall located at the front side and connected to the first rod wall and the second rod wall; A second rod side wall located at the rear side and connected to the first rod wall and the second rod wall, wherein the first rod wall, the second rod wall, the first rod side wall and the second rod side wall together form an arc-shaped rod cavity, a straight column cavity is provided on the rod head, a side of the arc-shaped rod cavity close to the rod tail is open, a side of the arc-shaped rod cavity close to the rod head is communicated with the straight column cavity, a side of the straight column cavity away from the rod tail is open, a special-shaped rod cone is provided on the rod tail, and a limit step is provided at the connection between the special-shaped rod cone and the rod tail; The cross section of the arc-shaped rod cavity is approximately D-shaped; The size of the shaped rod cone decreases from the rod tail to the rod head until it is equal to the size of the arc-shaped rod body; A director is provided at the connection between the arc-shaped rod cavity and the straight column cavity; The end of the first rod side wall and the end of the first rod wall at the rod head form a first load-bearing shoulder, and the end of the second rod side wall and the end of the second rod wall at the rod head form a second load-bearing shoulder. The wall thickness of the first load-bearing shoulder and the second load-bearing shoulder is greater than or equal to three times the minimum wall thickness of the arc-shaped rod body.

2. The peep piece module according to claim 1, characterized in that: The special-shaped rod vertebral body is adapted to the special-shaped vertebral cavity, the arc-shaped rod body is adapted to the arc-shaped tubular cavity, the arc-shaped rod body and the rod head are inserted into the arc-shaped tubular cavity, the special-shaped rod vertebral body is transitionally fitted or interference fit with the special-shaped vertebral cavity, the arc-shaped rod body is interference fit with the arc-shaped tubular cavity, a top gap is formed between the first rod wall and the first tube wall, a bottom gap is formed between the second rod wall and the second tube wall, a first side gap is formed between the first tube side wall and the first rod side wall, a second side gap is formed between the second tube side wall and the second rod side wall, and the sum of the top gap and the bottom gap is less than the sum of the first side gap and the second side gap.

3. The peep piece module according to claim 1, characterized in that: It also includes a camera assembly, which is installed on the straight column cavity. The camera assembly includes a flexible PCBA, an LED light source, a head end seat and a packaging tube. The head end seat includes a packaging flange, a light strip flange and a head end face which are arranged in sequence from the rod tail to the rod head. The diameter of the packaging flange is greater than the diameter of the light strip flange, the diameter of the light strip flange is greater than the diameter of the head end face, the thickness of the packaging flange is less than the thickness of the light strip flange, the thickness of the light strip flange is less than the thickness of the head end face, a V-shaped correction groove is provided on the side of the head end face close to the rod head, a chip cavity, a lens cavity and a lens cavity are provided on the head end seat, the camera chip of the flexible PCBA is installed in the chip cavity, the camera of the flexible PCBA is installed in the lens cavity, the LED light source is installed on the light strip flange, the packaging tube is installed on the packaging flange, and an orientation foot is provided on the side of the head end seat close to the rod tail, the orientation foot is plugged into the orienter, the correction groove is adapted to the correction ring and the correction ring is clamped on the correction groove.

4. The peep piece module according to claim 3, characterized in that: The head end seat is provided with a positioning cylindrical surface, and the included angle between the axis of the chip cavity of the head end seat and the positioning cylindrical surface is A1, and A1 is greater than or equal to 3° and A1 is less than or equal to 12°.

5. Video laryngoscope, characterized by: The invention comprises an image processing and display unit, a handle assembly and a peep film module as claimed in any one of claims 1 to 4, wherein the image processing and display unit and the peep film module as claimed in any one of claims 1 to 4 are both connected to the handle assembly.

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