Visual laryngoscope lens and visual laryngoscope

Abstract

The invention discloses a visual laryngoscope blade and a visual laryngoscope, and relates to the field of medical instruments.The visual laryngoscope blade comprises a sleeve, a tongue depressor, guide pipe assemblies, an angle adjusting assembly and a sliding assembly, the tongue depressor is arranged at the top of the sleeve, and the guide pipe assemblies are arranged on the left side or the right side of the sleeve side by side through the sliding assembly; the top of the guide pipe assembly is attached to the bottom of the tongue depressor, an opening used for taking and placing a trachea cannula catheter is formed in the top of the guide pipe assembly and is closed through the tongue depressor in an attached mode, and the angle adjusting assembly arranged at the bottom of the guide pipe assembly is used for adjusting the angle of the tail end of the guide pipe assembly. The tracheal intubation catheter is simple in structure and convenient to use, the intubation direction of the tracheal intubation catheter can be guided, use of a catheter core is avoided, meanwhile, angle adjustment of the air bag end of the tracheal intubation catheter is achieved, the precision and success rate of tracheal intubation are improved, and the tracheal intubation catheter is suitable for being used when doctors with unskilled tracheal intubation or ordinary people conduct first aid.

Description

Technical Field

[0001] The invention relates to the field of medical instruments, and in particular to a visual laryngoscope blade and a visual laryngoscope. Background Art

[0002] Tracheal intubation is an operation frequently used during general anesthesia and rescue of critically ill patients. The invention of the video laryngoscope has significantly reduced the difficulty of tracheal intubation, improved the success rate of intubation, and also greatly reduced the pressure on anesthesiologists.

[0003] At present, many anesthesiologists and emergency doctors still use the two-step method for endotracheal intubation, that is, first use a video laryngoscope to expose the glottis, then place the endotracheal tube into the mouth, rotate it, find the front end of the endotracheal tube under the supervision of the video laryngoscope, and then insert it into the glottis. Although this method is not too difficult for experienced anesthesiologists or other doctors, injuries to the oral mucosa and other tissues often occur during the process of rotating the endotracheal tube into the glottis after entering the entrance, especially for some young doctors who lack experience, the incidence of intubation injuries is higher.

[0004] Therefore, how to develop a visual laryngoscope blade and a visual laryngoscope with a simple structure, easy to use, able to guide the intubation direction of the endotracheal intubation tube and avoid the use of a tube core, while at the same time achieving angle adjustment of the balloon end of the endotracheal intubation tube to improve the accuracy and success rate of endotracheal intubation, suitable for use by doctors who are not skilled in endotracheal intubation or ordinary people in first aid, has become a technical problem that needs to be urgently solved by people in this field. Summary of the invention

[0005] The purpose of the present invention is to provide a visual laryngoscope blade and a visual laryngoscope, which have a simple structure and are easy to use. The blade and the visual laryngoscope can guide the intubation direction of the endotracheal intubation tube and avoid the use of a tube core. At the same time, the angle of the balloon end of the endotracheal intubation tube can be adjusted to improve the accuracy and success rate of endotracheal intubation. The visual laryngoscope is suitable for use by doctors who are not skilled in endotracheal intubation or ordinary people when performing first aid.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The present invention provides a visual laryngoscope blade, comprising a sleeve, a tongue depressor, a guide tube assembly, an angle adjustment assembly and a sliding assembly, wherein the tongue depressor is arranged at the top of the sleeve, the guide tube assembly is arranged side by side on either the left or right side of the sleeve through the sliding assembly, and the top of the guide tube assembly is fitted with the bottom of the tongue depressor, an opening for taking out and releasing an endotracheal intubation catheter is provided at the top of the guide tube assembly, and the opening is fitted and closed by the tongue depressor, and the angle adjustment assembly arranged at the bottom of the guide tube assembly is used to adjust the angle of the tail end of the guide tube assembly.

[0008] Preferably, the guide tube assembly includes a first guide tube, a guide ring and a hinged rod, the first guide tube is arranged on one side of the sleeve through the sliding assembly, the number of the hinged rods is set to two, one end of the hinged rod is fixedly connected to the side wall of the first guide tube, and the other end of the hinged rod is plugged into a hinge hole opened on the side wall of the guide ring through a plug-in column.

[0009] Preferably, the tops of the first guide tube and the guide ring are both provided with the opening, and the width of the opening is smaller than the outer diameter of the endotracheal intubation catheter.

[0010] Preferably, the angle adjustment assembly includes a second guide tube, a core wire, a threaded rod, an adjusting nut, a spring and a connecting ear plate, the second guide tube is fixedly connected to the bottom of the first guide tube, the core wire is fixedly connected to the threaded rod and then passed through the interior of the second guide tube, the end of the core wire away from the threaded rod is connected to the connecting ear plate fixedly connected to the bottom of the guide ring, the spring is sleeved on the core wire, and the two ends of the spring are respectively abutted and connected to the opposite surfaces of the connecting ear plate and the second guide tube, the end of the threaded rod away from the core wire is threadedly connected to the adjusting nut, and one side of the adjusting nut fits against the tube wall of the second guide tube.

[0011] Preferably, a guide groove is provided at the bottom of the second guide tube, and a guide block matching the guide groove is provided on the threaded rod.

[0012] Preferably, the angle adjustment assembly further includes a stopper, and the core wire passes through the connecting ear plate and is fixedly connected to the stopper.

[0013] Preferably, the sliding assembly includes a pad and a T-shaped slider, the pad is fixedly connected to one side of the sleeve, and the second guide tube is slidably connected to a T-shaped slot provided on the pad via a plurality of T-shaped sliders provided on the tube wall.

[0014] Preferably, an elastic protrusion is arranged on the top of the T-shaped sliding block, and a slot matching the elastic protrusion is arranged in the T-shaped sliding groove.

[0015] Preferably, a video laryngoscope comprises a visual laryngoscope blade.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are:

[0017] 1) The setting of the guide tube assembly can be used to guide the intubation direction of the endotracheal intubation catheter, avoiding the use of the endotracheal intubation catheter core, effectively reducing the difficulty of endotracheal intubation and improving the success rate of intubation;

[0018] 2) The setting of the angle adjustment component can realize the angle adjustment of the balloon end of the endotracheal intubation tube through the guide ring, thereby improving the accuracy of endotracheal intubation and helping to reduce the probability of damage to the oral mucosa and other tissues during intubation;

[0019] 3) The split design of the guide tube assembly facilitates the installation of the endotracheal intubation catheter in advance, and after the intubation is completed, the endotracheal intubation catheter and the guide tube assembly can be separated more conveniently, which effectively improves the convenience of separating the endotracheal intubation catheter.

[0020] In general, the present invention has a simple structure and is easy to use. The setting of the first guide tube can be used to guide the intubation direction of the endotracheal intubation catheter, avoiding the use of a tube core and effectively reducing the difficulty of endotracheal intubation. At the same time, the setting of the guide ring can realize the angle adjustment of the balloon end of the endotracheal intubation catheter, thereby improving the accuracy and success rate of endotracheal intubation. The present invention is suitable for use by doctors who are not skilled in endotracheal intubation or ordinary people when performing first aid. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of a visual laryngoscope blade of the present invention;

[0023] Figure 2 The connection structure of the guide tube assembly and the angle adjustment assembly of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 3 The connection structure of the guide tube assembly and the angle adjustment assembly of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 4 For the present invention Figure 2 The enlarged view of point A in the middle;

[0026] Figure 5 For the present invention Figure 3 The enlarged view of point B in the middle;

[0027] Figure 6 It is a schematic diagram of the connection structure of the backing plate, sleeve and tongue depressor of the present invention;

[0028] Figure 7 It is a partial structural cross-sectional view of the guide tube assembly of the present invention.

[0029] Explanation of the accompanying drawings: 1. sleeve; 2. tongue depressor; 3. guide tube assembly; 31. first guide tube; 32. guide ring; 33. hinged rod; 34. plug-in column; 35. opening; 4. angle adjustment assembly; 41. second guide tube; 42. core wire; 43. threaded rod; 44. adjusting nut; 45. spring; 46. connecting ear plate; 47. guide groove; 48. guide block; 49. stopper; 5. sliding assembly; 51. pad; 52. T-shaped slider; 53. T-shaped slide groove. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] like Figure 1-7 As shown, a visual laryngoscope blade comprises a sleeve 1, a tongue depressor 2, a guide tube assembly 3, an angle adjustment assembly 4 and a sliding assembly 5, wherein the tongue depressor 2 is arranged at the top of the sleeve 1, and the guide tube assembly 3 is arranged side by side on either the left or right side of the sleeve 1 through the sliding assembly 5, and the top of the guide tube assembly 3 is fitted with the bottom of the tongue depressor 2, and an opening 35 for taking out and releasing an endotracheal intubation catheter is provided at the top of the guide tube assembly 3, and the opening 35 is fitted and closed by the tongue depressor 2, and the angle adjustment assembly 4 arranged at the bottom of the guide tube assembly 3 is used to adjust the angle of the tail end of the guide tube assembly 3.

[0032] Specifically, the exposed edges of the sleeve 1, the tongue depressor 2, the guide tube assembly 3 and the angle adjustment assembly 4 that contact the oral cavity are all rounded to form a rounded structure, thereby improving safety in use.

[0033] Specifically, the guide tube assembly 3 includes a first guide tube 31, a guide ring 32 and a hinged rod 33. The first guide tube 31 is arranged on one side of the sleeve 1 through the sliding assembly 5. The number of the hinged rods 33 is set to two. One end of the hinged rod 33 is fixedly connected to the side wall of the first guide tube 31, and the other end of the hinged rod 33 is plugged into a hinge hole opened on the side wall of the guide ring 32 through a plug-in column 34.

[0034] Specifically, the tops of the first guide tube 31 and the guide ring 32 are both provided with the opening 35 , and the width of the opening 35 is smaller than the outer diameter of the endotracheal intubation tube.

[0035] Specifically, to ensure that the guide ring 32 can rotate around the plug-in column 34, a gap is set between the top of the guide ring 32 and the bottom of the tongue depressor 2, or the top of the guide ring 32 is set into an arc shape along the rotation direction.

[0036] Specifically, the angle adjustment assembly 4 includes a second guide tube 41, a core wire 42, a threaded rod 43, an adjusting nut 44, a spring 45 and a connecting ear plate 46. The second guide tube 41 is fixedly connected to the bottom of the first guide tube 31. The core wire 42 is fixedly connected to the threaded rod 43 and then passed through the interior of the second guide tube 41. The end of the core wire 42 away from the threaded rod 43 is connected to the connecting ear plate 46 fixedly connected to the bottom of the guide ring 32. The spring 45 is sleeved on the core wire 42, and the two ends of the spring 45 are respectively abutted against the opposite surfaces of the connecting ear plate 46 and the second guide tube 41. The end of the threaded rod 43 away from the core wire 42 is threadedly connected to the adjusting nut 44, and one side of the adjusting nut 44 fits against the tube wall of the second guide tube 41.

[0037] Specifically, the user can rotate the adjustment nut 44 to cause the threaded rod 43 and the core wire 42 to move together, thereby driving the guide ring 32 to achieve rotational adjustment.

[0038] Specifically, a guide groove 47 is formed at the bottom of the second guide tube 41 , and a guide block 48 matching the guide groove 47 is disposed on the threaded rod 43 .

[0039] Specifically, the provision of the guide groove 47 and the guide block 48 can assist in positioning the threaded rod 43 , and can effectively prevent the threaded rod 43 from rotating, thereby ensuring stable operation of the device.

[0040] Specifically, the angle adjustment assembly 4 further includes a stopper 49 , and the core wire 42 passes through the connecting ear plate 46 and is fixedly connected to the stopper 49 .

[0041] Specifically, the stopper 49 can be in the form of a retaining ring or customized according to the core wire 42, with the aim of ensuring that the stopper 49 can be firmly fixed on the core wire 42 so that it can contact the connecting ear plate 46 and play a blocking role; and after the core wire 42 passes through the connecting ear plate 46, the user can also connect it to the connecting ear plate 46 by bundling.

[0042] Specifically, the material of the core wire 42 can be selected based on the actual situation. The key is to ensure that the movement of the threaded rod 43 can be stably transmitted to the connecting ear plate 46. At the same time, the core wire 42 needs to have a certain flexibility. In this embodiment, the core wire 42 is made of stainless steel.

[0043] Specifically, the user can open a connection hole at one end of the threaded rod 43 close to the core wire 42, and then pass the core wire 42 through the connection hole and bundle them for connection. Other suitable connection methods can also be selected according to actual conditions.

[0044] Specifically, the sliding assembly 5 includes a pad 51 and a T-shaped slider 52. The pad 51 is fixedly connected to one side of the sleeve 1. The second guide tube 41 is slidably connected to a T-shaped slot 53 provided on the pad 51 through a plurality of T-shaped sliders 52 provided on the tube wall.

[0045] Specifically, the opening direction of the T-shaped slide groove 53 is away from the inlet end of the sleeve 1 .

[0046] Specifically, an elastic protrusion is disposed on the top of the T-shaped sliding block 52 , and a slot matching the elastic protrusion is disposed in the T-shaped sliding groove 53 .

[0047] The present invention also provides a visual laryngoscope, comprising the visual laryngoscope blade mentioned in the above scheme.

[0048] The use process of the present invention is as follows:

[0049] When using the video laryngoscope, the endotracheal tube tube must first be installed into the first guide tube 31 and the guide ring 32 through the opening 35, and then the guide tube assembly 3 is firmly connected to one side of the sleeve 1 through the T-shaped slider 52 provided on one side of the first guide tube 31. At this time, the first guide tube 31 will contact the tongue depressor 2, thereby closing the opening 35, thereby reducing the probability of the endotracheal tube tube slipping out of the first guide tube 31 and the guide ring 32;

[0050] Subsequently, the visual laryngoscope blade is mounted on the visual laryngoscope using the sleeve 1, and the visual laryngoscope blade is placed in the patient's mouth. Since the endotracheal intubation tube is pre-installed in the first guide tube 31 and the guide ring 32, the endotracheal intubation tube moves synchronously with the visual laryngoscope blade. When the medical staff exposes the glottis, the guide ring 32 can be controlled to rotate by turning the adjusting nut 44, and the position of the endotracheal intubation tube can be observed with the help of the display screen of the visual laryngoscope until the balloon end of the endotracheal intubation tube is aligned with the glottis.

[0051] Finally, the medical staff can push the endotracheal intubation catheter to insert it into the glottis under the guidance of the first guide tube 31 and the guide ring 32. After the endotracheal intubation catheter enters the glottis, the guide tube assembly 3 is fixed and the visual laryngoscope is pulled outward. At this time, the sleeve 1 and the tongue depressor 2 are separated from the guide tube assembly 3, and the opening 35 is exposed again, which facilitates the detachment of the endotracheal intubation catheter from the top of the guide tube assembly 3 to complete the intubation operation.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A visual laryngoscope blade, characterized in that: The invention comprises a sleeve (1), a tongue depressor (2), a guide tube assembly (3), an angle adjustment assembly (4) and a sliding assembly (5), wherein the tongue depressor (2) is arranged at the top of the sleeve (1), the guide tube assembly (3) is arranged side by side on either the left or right side of the sleeve (1) through the sliding assembly (5), and the top of the guide tube assembly (3) is in contact with the bottom of the tongue depressor (2), an opening (35) for taking out and releasing a tracheal intubation catheter is provided at the top of the guide tube assembly (3), and the opening (35) is closed by the tongue depressor (2), and the angle adjustment assembly (4) arranged at the bottom of the guide tube assembly (3) is used to adjust the angle of the tail end of the guide tube assembly (3).

2. A visual laryngoscope blade according to claim 1, characterized in that: The guide tube assembly (3) comprises a first guide tube (31), a guide ring (32) and a hinged rod (33); the first guide tube (31) is arranged on one side of the sleeve (1) through the sliding assembly (5); the number of the hinged rods (33) is set to two; one end of the hinged rod (33) is fixedly connected to the side wall of the first guide tube (31); the other end of the hinged rod (33) is plug-connected to a hinged hole opened on the side wall of the guide ring (32) through a plug-in column (34).

3. The visual laryngoscope blade according to claim 2, characterized in that: The opening (35) is provided at the top of the first guide tube (31) and the guide ring (32), and the width of the opening (35) is smaller than the outer diameter of the endotracheal intubation tube.

4. The visual laryngoscope blade according to claim 2, characterized in that: The angle adjustment assembly (4) comprises a second guide tube (41), a core wire (42), a threaded rod (43), an adjusting nut (44), a spring (45) and a connecting ear plate (46); the second guide tube (41) is fixedly connected to the bottom of the first guide tube (31); the core wire (42) is fixedly connected to the threaded rod (43) and then passed through the interior of the second guide tube (41); one end of the core wire (42) away from the threaded rod (43) is connected to a connecting ear plate (46) fixedly connected to the bottom of the guide ring (32); the spring (45) is sleeved on the core wire (42), and two ends of the spring (45) are respectively abutted against opposite surfaces of the connecting ear plate (46) and the second guide tube (41); one end of the threaded rod (43) away from the core wire (42) is threadedly connected to the adjusting nut (44), and one side of the adjusting nut (44) is in contact with the tube wall of the second guide tube (41).

5. The visual laryngoscope blade according to claim 4, characterized in that: A guide groove (47) is provided at the bottom of the second guide tube (41), and a guide block (48) matching the guide groove (47) is provided on the threaded rod (43).

6. The visual laryngoscope blade according to claim 4, characterized in that: The angle adjustment assembly (4) further comprises a stopper (49), and the core wire (42) is fixedly connected to the stopper (49) after passing through the connecting ear plate (46).

7. The visual laryngoscope blade according to claim 5, characterized in that: The sliding assembly (5) comprises a pad (51) and a T-shaped sliding block (52); the pad (51) is fixedly connected to one side of the sleeve (1); and the second guide tube (41) is slidably connected to a T-shaped sliding groove (53) provided on the pad (51) via a plurality of T-shaped sliding blocks (52) provided on the tube wall.

8. The visual laryngoscope blade according to claim 7, characterized in that: The top of the T-shaped sliding block (52) is provided with an elastic protrusion, and the T-shaped sliding groove (53) is provided with a clamping groove matching the elastic protrusion.

9. A video laryngoscope, characterized in that: Comprising the visual laryngoscope blade according to any one of claims 1 to 8.

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