A laryngoscope
By designing a laryngoscope with rigid rod and soft rod head, the complex and vulnerable operation of existing fiber optic laryngoscopes is solved, achieving a more flexible and safe tracheal intubation operation, and cleaning the camera lens with injection of oxygen , simplifies the use process.
Patent Information
- Application Number
- CN201611267149.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2016-12-31
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2036-12-31
AI Technical Summary
The existing fiber optic laryngoscopes are complex during use, have a long training cycle and are prone to damage to the upper respiratory tract and teeth of the patient, lack flexibility and safety, and it is difficult to solve the problem of difficult tracheal intubation.
A laryngo lens including a rigid mirror rod body and an elastic mirror rod head is designed. The mirror rod body is curved with a preset angle. The mirror rod head can be adjusted with an angle, equipped with a camera device and a display terminal, and the mirror rod head is The part is a soft elastic member to reduce pressure on the mucosal tissue of the throat and provides oxygen support and cleaning functions through the spray holes and oxygen supply system.
Improves the operation flexibility and safety of laryngoscopy, reduces the risk of damage to the throat, realizes real-time imaging and video recording functions, simplifies the tracheal intubation process, and cleans the camera lens by spraying oxygen, improving the convenience of use .
Smart Images
Figure CN108261168B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of medical instruments, and in particular to a laryngoscope. Background Art
[0002] Tracheal intubation is one of the important techniques to ensure effective ventilation and gas exchange in the patient's lungs, and is an important part of clinical anesthesia, emergency resuscitation and critical care. Due to factors such as the operator's experience, abnormal airway structure of the patient, and lack of suitable tracheal intubation tools, difficult tracheal intubation often occurs, often endangering the patient's life safety.
[0003] In the prior art, although a variety of visual laryngoscopes have been used in clinical practice, there is currently no tool that can solve all difficult endotracheal intubation problems. Flexible fiberoptic bronchoscopes and fiberoptic rigid bronchoscopes are considered to be the most commonly used visualization tools for difficult endotracheal intubation. However, there are still some shortcomings in both: the flexible fiberoptic bronchoscope has complex operation and a long training and learning cycle, which limits its widespread application. Due to the hardness of the mirror shaft and the fixed mirror body angle, the fiberoptic rigid bronchoscope is prone to direct damage to the patient's upper respiratory tract and teeth during use.
[0004] Therefore, how to make the fiberoptic laryngoscope safer, more flexible and more convenient during use is a problem we need to solve at present. Summary of the invention
[0005] The object of the present invention is to provide a laryngoscope, which makes the laryngoscope safer, more flexible and more convenient during use.
[0006] To solve the above technical problems, an embodiment of the present invention provides a laryngoscope, comprising a mirror rod, a camera device for taking pictures connected to one end of the mirror rod, a mirror handle connected to the other end of the mirror rod, and a display terminal located on the mirror handle and electrically connected to the camera device, the mirror rod comprising a mirror rod body, a head connected to the mirror rod body, a cavity within the mirror handle, and a portion of the mirror rod body is inserted into the cavity; the mirror rod body is a rigid part and is bent in an arc shape at a preset angle, the mirror rod head is an elastic part, and the laryngoscope also includes an angle adjustment device for adjusting the angle of the tip of the mirror rod head.
[0007] Compared with the prior art, the embodiment of the present invention not only includes a mirror rod, a camera device for taking pictures connected to one end of the mirror rod, and a mirror handle connected to the other end of the mirror rod, but also includes a mirror rod body and a head connected to the mirror rod body, and the mirror rod body is partially inserted into the cavity in the mirror handle. Because the mirror rod body is a rigid part, the mirror rod body can play a certain supporting role on the whole of the mirror rod, which is convenient for operators to control the mirror rod. In addition, because the laryngoscope also includes an angle adjustment device for adjusting the angle of the tip of the mirror rod head, and the mirror rod head is an elastic part, it is convenient to adjust the angle of the mirror rod head. Because the camera device is located at the mirror rod head, the operator can change the shooting field of the camera device by adjusting the angle of the mirror rod head, which is simple and convenient to operate. At the same time, the mirror rod head is the front end of the laryngoscope. When the mirror rod head is obstructed in the process of penetrating into the human body, the mirror rod head of the elastic part is relatively soft, so that the mirror rod head can undergo appropriate elastic deformation, which greatly reduces the pressure of the mirror rod head on the throat mucosal tissue, reduces damage, and improves the safety of laryngoscope use.
[0008] Furthermore, the tip of the mirror rod head forms a preset angle. In this way, during the intubation process, the camera device installed on the mirror rod head can conveniently shoot, and the collected images are presented on the display terminal after data processing, which can display the image of the oropharynx and throat in real time, thereby facilitating the operator to perform tracheal intubation, and can also store the video of the operation process, that is, real-time imaging and real-time recording.
[0009] Furthermore, the angle adjustment device includes a tension line connected to the mirror rod head, and an adjustment handle connected to the tension line and used to adjust the length of the tension line; wherein, when the adjustment handle tightens the tension line, the angle of the tip of the mirror rod head decreases; and when the adjustment handle loosens the tension line, the angle of the tip of the mirror rod head increases. By controlling the adjustment handle, the operator can change the length of the tension line on the one hand, thereby achieving angle adjustment of the mirror rod head; on the other hand, since the tracheal tube is sleeved on the mirror rod, the direction pointed by the lens observed by the image display terminal is also the direction pointed by the tip of the tracheal tube. After the airway glottis structure is exposed, the tracheal tube can be inserted along the laryngoscope rod to complete the tracheal intubation operation, and the operation method is visual, simple and flexible throughout the process, and easy to implement.
[0010] Furthermore, a first penetration hole is provided at the angle position of the mirror rod head, and a connection point is provided on the side close to the camera device, one end of the tension line is connected to the adjustment handle, and the other end of the tension line passes through the first penetration hole and is fixedly connected to the connection point. When the adjustment handle tightens the tension line, the straight-line distance between the first penetration hole and the connection point decreases, and the tension on the tension line increases, thereby reducing the angle of the tip of the mirror rod head; when the adjustment handle loosens the tension line, the straight-line distance between the first penetration hole and the connection point increases, the tension on the tension line decreases, and the tension line is loosened, thereby increasing the angle of the tip of the mirror rod head.
[0011] Furthermore, a second perforation hole is provided on one side of the mirror rod head close to the mirror rod body for the tension wire to pass through. When the tension wire is tightened, the tension on the wire increases. At this time, the tension wire contacts the two perforation holes to balance the tension on the wire.
[0012] Furthermore, the tension line is located inside the mirror rod, so that the surface of the mirror rod can remain smooth, thereby reducing the damage to the human body caused by the laryngoscope during intubation.
[0013] Furthermore, the display terminal is electrically connected to the camera device via a data line, and at least a portion of the data line is located inside the mirror rod. The data line is located inside the mirror rod and does not need to be exposed to the outside, thus keeping the mirror rod surface smooth.
[0014] Furthermore, the display terminal is connected to the mirror handle via a hinge, so that the display terminal can be buckled on the mirror handle with the hinge as the base axis, and the display terminal can be adjusted in multiple directions during use, which is convenient for operators to observe.
[0015] Furthermore, the laryngoscope further comprises a spray hole arranged at the head of the mirror rod, a flow channel formed in the mirror rod and connected to the spray hole, and the flow channel is connected to a jet oxygen supply system. The oxygen provided by the jet oxygen supply system passes through the flow channel and finally flows out from the spray hole. The sprayed oxygen is generally used for respiratory support of patients during difficult endotracheal intubation; on the other hand, when the lens is stained with secretions and forms water mist, which obstructs the field of view of the camera device, the oxygen sprayed from the spray hole can blow away the contaminants on the camera lens and restore the cleanliness of the camera lens. The operator does not need to take out the laryngoscope to wipe it, which plays a role in cleaning the camera lens to a certain extent, and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of a laryngoscope according to a first embodiment of the present invention;
[0017] Figure 2 is a schematic diagram of a mirror rod head according to a second embodiment of the present invention;
[0018] Figure 3 Schematic diagram of a mirror rod head according to a third embodiment of the present invention.
[0019] Description of reference numerals:
[0020] 1. Mirror handle; 2. Mirror rod body; 3. Display terminal; 4. Adjustment handle; 5. Mirror rod head; 51. First penetration hole; 52. Spray hole; 53. Tension line; 54. Second penetration hole; 55. Connection point. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical scheme and advantages of the present invention clearer, the following will be described in detail with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that in the various embodiments of the present invention, many technical details are provided in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the present application can be implemented.
[0022] The first embodiment of the present invention relates to a laryngoscope, Figure 1 As shown, it includes a mirror rod, a camera device for filming connected to one end of the mirror rod, and a mirror handle 1 connected to the other end of the mirror rod, wherein the mirror rod is divided into two types, adult and pediatric. The rod diameter of the adult type is slightly thicker than that of the pediatric type. The adult mirror rod can be adapted to tracheal tubes with an inner diameter of 5.5 mm or more, and the pediatric mirror rod can be adapted to tracheal tubes with an inner diameter of 3 mm or more.
[0023] The interior of the mirror handle 1 mentioned above is hollow and can be regarded as a cavity. One end of the mirror rod is partially inserted into the cavity of the mirror handle 1, and the connection between the mirror rod and the mirror handle 1 is an arc bend at a preset angle, which greatly shortens the overall length of the laryngoscope. The preset angle of the bend is not specifically limited in this embodiment, and only the preset angle of 90 degrees is used as an example for explanation. In the tracheal intubation operation, if the mirror rod of the laryngoscope is too long, it is easy to cause the laryngoscope to be inflexible and not conducive to precise operation. Especially in the optical hard mirror, the excessively long mirror rod is easy to increase the risk of damage to the patient's oropharyngeal tissue, teeth, etc. The mirror rod of this embodiment can effectively shorten the length of the mirror rod, especially shorten the distance between the handheld mirror handle 1 and the head of the laryngoscope, and increase the controllability and flexibility in the operation.
[0024] The mirror rod mentioned above includes a mirror rod body 2 and a mirror rod head 5 connected to the mirror rod body 2. The mirror rod body 2 is a rigid part, such as ductile stainless steel, etc. This mirror rod body 2 can play a certain supporting role on the whole mirror rod, which is convenient for operators to control the position of the mirror rod. In addition, the mirror rod head 5 is an elastic part, such as a rubber part or a silicone part, and since the laryngoscope also includes an angle adjustment device for adjusting the angle of the tip of the mirror rod head 5, it is convenient to adjust the angle of the mirror rod head 5. Since the camera device is located at the mirror rod head 5, the operator can change the shooting angle of the camera device by adjusting the angle of the mirror rod head 5. This operation method is simple and flexible. In addition, the mirror rod head 5 is the front end of the laryngoscope. When the mirror rod head 5 is obstructed in the process of entering the throat, the mirror rod head 5 of the elastic part is relatively soft, so that the mirror rod head 5 can undergo appropriate elastic deformation, which greatly reduces the pressure of the mirror rod head 5 on the throat mucosal tissue, reduces damage, and improves the safety of the use of the laryngoscope.
[0025] It should be noted that, in the present embodiment, the tip of the mirror rod head 5 forms a preset angle, so that the mirror rod appears J-shaped from the outside, which is close to the physiological curvature of the human throat. In this way, during the intubation process, the camera device installed on the mirror rod head 5 can easily reveal structures such as the airway glottis, thereby facilitating the completion of tracheal intubation.
[0026] In addition, it is worth mentioning that the angle adjustment device specifically includes a tension wire 53 connected to the mirror rod head 5, and an adjustment handle 4 connected to the tension wire 53 and used to adjust the length of the tension wire 53. The tension wire 53 is made of metal, and can be a stainless steel wire or a copper wire. The metal wire has a large tensile strength, is not easily broken, and has high reliability. Of course, other wires that meet the requirements of this embodiment are also possible, and this embodiment does not specifically limit this.
[0027] In order to make the mirror rod surface smooth, the tension wire 53 is set in the mirror rod cavity, but for easy observation, the tension wire 53 is drawn outside the mirror rod in the figure. In order to adjust the angle of the tip of the mirror rod head 5, a first penetration hole 51 is provided at the angle position of the mirror rod head 5, and a connection point 55 is provided on the side close to the camera device. One end of the tension wire 53 is connected to the adjustment handle 4, and the other end of the tension wire 53 passes through the first penetration hole 51 and is fixedly connected to the connection point 55.
[0028] It should be noted that the tension line 53 starts from the connection point 55, passes through the first perforation hole 51, and then is connected to the adjustment handle 4 through the tail end of the mirror handle 1. The adjustment handle 4 is located outside the mirror rod, and the adjustment handle 4 is easy to hold and can be operated with one hand. In this embodiment, the adjustment handle 4 has a loose position and a tightening position. When the adjustment handle 4 is in the tightening position, the tension on the tension line 53 increases, the tension line 53 is tightened, and the straight-line distance between the first perforation hole 51 and the connection point 55 is reduced, and the angle of the tip of the mirror rod head 5 is reduced; when the adjustment handle 4 is in the loose position, the tension on the tension line 53 is reduced, the tension line 53 is relaxed, and the straight-line distance between the first perforation hole 51 and the connection point 55 is increased, and the angle of the tip of the mirror rod head 5 is increased.
[0029] The laryngoscope of this embodiment also includes a display terminal 3 located on the mirror handle 1 and electrically connected to the camera device. It should be noted that the display terminal 3 is arranged on the mirror handle 1 and is electrically connected to the camera device through a data line, and at least part of the data line is located inside the mirror rod, thereby ensuring that the outer wall of the mirror rod is smooth. One end of the data line is connected to the camera device located at the mirror rod head 5, and the other end is passed through the mirror rod cavity, and is connected to the display terminal 3 when it reaches the mirror handle 1. The operator can observe the image captured by the camera device through the display terminal 3, and as the angle of the camera device changes, the display terminal 3 displays images in different directions. In addition, it is worth mentioning that the display terminal 3 is connected to the mirror handle 1 through a hinge, so that the operator can flexibly adjust the angle of the display terminal.
[0030] In summary, the laryngoscope not only includes a mirror rod, a camera device for taking pictures connected to one end of the mirror rod, and a mirror handle 1 connected to the other end of the mirror rod, but also the mirror rod includes a mirror rod body 2 and a mirror rod head 5 connected to the mirror rod body 2. Since the mirror rod body 2 is a rigid part, the mirror rod body 2 plays a certain supporting role on the whole mirror rod, which is convenient for adjusting the direction of the tip of the laryngoscope. In addition, since the laryngoscope also includes an angle adjustment device for adjusting the angle of the tip of the mirror rod head 5, and the mirror rod head 5 is an elastic part, the operator can perform one-handed operation, that is, by pulling in or relaxing the angle adjustment device, the angle adjustment of the laryngoscope tip upward and downward can be achieved, and the slight left and right direction adjustment of the mirror holding arm can be coordinated. At the same time, the mirror rod head 5 is the front end of the laryngoscope. When the mirror rod head 5 is obstructed in the process of penetrating into the human body, since the mirror rod head 5 of the elastic part is relatively soft, the mirror rod head 5 can undergo moderate elastic deformation, which greatly reduces the pressure of the mirror rod head 5 on the throat mucosal tissue, reduces damage, and improves the safety of the laryngoscope.
[0031] The second embodiment of the present invention relates to a laryngoscope. The second embodiment is an improvement on the first embodiment. The main improvement is that: in this embodiment, combined with Figure 2As shown, a second penetration hole 54 for the tension wire 53 to pass through is further provided on one side of the mirror rod head 5 close to the mirror rod body 2 .
[0032] Specifically, the tension line 53 starts from the connection point 55, passes through the first perforation hole 51, and then passes through the second perforation hole 54, and then connects with the adjustment handle 4 through the tail end of the mirror handle 1. In this embodiment, the distance from the first perforation hole 51 to the connection point 55 can be equal to the distance from the second perforation hole 54 to the first perforation hole 51. When the adjustment handle 4 is in the tightening position, the tension on the tension line 53 increases, and the angle of the tip of the mirror rod head 5 decreases; when the adjustment handle 4 relaxes the tension line 53, the tension on the tension line 53 decreases, and the angle of the tip of the mirror rod head 5 increases. When the tension line 53 is tightened, the tension on the line increases, and the tension line 53 contacts the two perforations, which can further balance the tension on the line.
[0033] The third embodiment of the present invention relates to a laryngoscope. The third embodiment is an improvement on the first embodiment. The main improvement is that: in this embodiment, combined with Figure 3 As shown, the laryngoscope further includes a spray hole 53 provided at the mirror rod head 5, a flow channel formed in the mirror rod and connected to the spray hole 53, and the flow channel is connected to the jet oxygen supply system.
[0034] Specifically, the spray hole 53 of this embodiment has a relatively small aperture, is arranged at the mirror rod head 5, is adjacent to the camera device, and is used to transmit oxygen. The spray hole 53 is connected to the flow channel, and the flow channel is arranged in the mirror rod cavity. The other end of the flow channel is externally connected to a jet oxygen supply system, and the jet oxygen supply system is used to provide oxygen, and then the oxygen enters the flow channel and flows out from the spray hole 53. The jet oxygen supply system can be an external high-frequency ventilation, which is generally used for emergency oxygen supply and respiratory support for patients during difficult tracheal intubation. On the other hand, during the intubation process of the laryngoscope, since the mirror rod needs to go deep into the throat, sometimes the lens will be contaminated with secretions, which will hinder the field of view of the camera device and make it difficult for the operator to see the picture clearly. In this embodiment, since the spray hole 53 is adjacent to the camera device, the oxygen sprayed in the spray hole 53 can blow away the contaminants on the camera lens, restore the cleanliness of the camera lens, and the operator does not need to take out the laryngoscope to wipe it, which plays a role in cleaning the camera lens to a certain extent, and is easy to operate.
[0035] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.
Claims
1. A laryngoscope, comprising a mirror rod, a camera device connected to one end of the mirror rod for taking pictures, a mirror handle connected to the other end of the mirror rod, and a display terminal located on the mirror handle and electrically connected to the camera device, Features: The mirror rod comprises a mirror rod body and a mirror rod head connected to the mirror rod body; a cavity is provided in the mirror handle, and a portion of the mirror rod body is inserted into the cavity; The mirror rod body is a rigid part, and the connection between the mirror rod body and the mirror handle is bent in an arc shape at a preset angle, and the mirror rod head is an elastic part; the laryngoscope also includes an angle adjustment device for adjusting the angle of the tip of the mirror rod head; The tip of the mirror rod head forms a preset angle, so that the mirror rod is J-shaped; The angle adjustment device comprises a tension wire connected to the mirror rod head, and an adjustment handle connected to the tension wire and used to adjust the length of the tension wire; Wherein, when the adjusting handle tightens the tension line, the angle of the tip of the mirror rod head decreases; when the adjusting handle loosens the tension line, the angle of the tip of the mirror rod head increases; A first penetration hole is provided at an angle position of the mirror rod head, a connection point is provided on the side close to the camera device, one end of the tension line is connected to the adjustment handle, the other end of the tension line passes through the first penetration hole and is fixedly connected to the connection point, and a second penetration hole for the tension line to pass through is also provided on the side of the mirror rod head close to the mirror rod body; The tension wire is located in the mirror rod.
2. The laryngoscope according to claim 1, It is characterized in that The display terminal is electrically connected to the camera device via a data line, and at least a portion of the data line is located inside the mirror rod.
3. The laryngoscope according to claim 1, It is characterized in that The display terminal is connected to the mirror handle via a hinge.
4. The laryngoscope according to claim 1, It is characterized in that The laryngoscope further comprises a spray hole arranged at the head of the mirror rod, a flow channel formed in the mirror rod and connected to the spray hole, and the flow channel is connected to the jet oxygen supply system.