Anesthetic laryngoscope
By integrating a drug delivery tube and visual aids into the design of an anesthesia laryngoscope, the problem of direct drug delivery and secondary tube placement in anesthesia laryngoscopes is solved, achieving precision and safety in drug delivery and reducing the risk of laryngeal injury.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENGYANG CENT HOSPITAL
- Filing Date
- 2024-12-31
- Publication Date
- 2026-04-21
AI Technical Summary
Existing anesthetic laryngoscopes lack the ability to directly administer anesthetic drugs, requiring the use of additional tubing to deliver the drugs, which increases the complexity of the surgery and the patient's suffering. Furthermore, secondary tubing can easily damage the larynx, and precise control is difficult.
An integrated anesthesia laryngoscope was designed, which integrates a drug delivery tube and a laryngoscope. The drug delivery tube is stably inserted into the laryngeal cavity through a tube groove and a tube blocking device. Combined with a miniature camera and a display, it provides a clear field of view, enabling precise positioning and stable delivery of the drug delivery tube.
It simplifies the surgical procedure, reduces the risk of laryngeal injury, improves the ease of operation and the accuracy of medication delivery, and reduces patient discomfort.
Smart Images

Figure CN224140785U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical supplies technology, specifically to an anesthesia laryngoscope. Background Technology
[0002] Laryngoscopy is widely used in the examination, diagnosis, and treatment of the pharynx and larynx, especially when laryngeal anesthesia is required. Traditional laryngoscopy designs primarily focus on providing a clear view, allowing physicians to directly observe the internal structures of the larynx, thus ensuring the accuracy and safety of the procedure. However, despite significant advancements in visual presentation, several problems remain to be addressed in practical use.
[0003] First, most existing laryngoscopy devices only have the function of opening the larynx and providing visual visualization, but lack the ability to directly administer medication. This means that after the laryngoscope is inserted into the larynx, the doctor needs to use an additional tube to deliver anesthetic drugs into the larynx. This step-by-step procedure not only increases the complexity and time cost of the surgery, but may also increase the patient's pain and discomfort due to the repeated insertion and movement of instruments.
[0004] Secondly, the procedure of inserting a tube again to deliver anesthetic drugs after opening the laryngeal cavity with an anesthesia laryngoscope can easily cause damage to the larynx. The larynx is a sensitive and fragile area, and frequent instrument manipulation can lead to scratches, edema, or even bleeding of the laryngeal mucosa, thereby increasing the risk of postoperative complications.
[0005] Furthermore, precise control during tube insertion is also a challenge. Due to the complexity of the larynx's internal structure and individual differences, doctors often face challenges when attempting to accurately insert the tube into the target location. This not only requires doctors to possess superb operational skills, but also risks uneven distribution of anesthetic drugs due to improper operation, affecting the anesthetic effect.
[0006] Therefore, there is an urgent need for a new type of anesthesia laryngoscope to provide a solution to the shortcomings of existing technologies. Utility Model Content
[0007] The purpose of this invention is to provide an anesthesia laryngoscope to solve the problems mentioned in the background art.
[0008] To achieve the above objectives, this utility model provides the following technical solution:
[0009] An anesthesia laryngoscope includes a handle and a laryngeal opening rod. The handle is connected to the end of the laryngeal opening rod and is perpendicular to it. The end of the laryngeal opening rod away from the handle has an arc-shaped protrusion that curves towards the handle. A mounting groove is installed on the side of the protrusion facing away from the handle, and a miniature camera is installed within the mounting groove. The opening of the mounting groove is sealed with a waterproof lens. A display is installed on the end of the handle away from the laryngeal opening rod, and the miniature camera transmits video signals to the display. A continuous tube groove is provided on the side of the laryngeal opening rod and the protrusion facing away from the handle. The tube groove is an open structure, and a row of equally spaced tube-blocking devices is provided at the opening of the tube groove to prevent the drug delivery tube from falling out of the tube groove. The tube-blocking devices are telescopic, and a switch controlling the extension and retraction of the tube-blocking devices is located at the end of the handle away from the laryngeal opening rod. A lithium battery for powering the entire device is located inside the handle.
[0010] Furthermore, the tube-blocking device includes a sleeve disposed inside one side wall of the mounting groove, an electromagnetic block at the inner end of the sleeve, and the outer end of the sleeve being flush with the side wall of the mounting groove. A telescopic column is slidably installed inside the sleeve, with the head of the telescopic column extending out of the sleeve and abutting against the other side wall of the mounting groove. The telescopic column has a spring groove inside, with a spring inserted into the spring groove, the end of the spring extending out of the spring groove and abutting against the electromagnetic block. The telescopic column is made of magnetic material, and the switch is used to control the electromagnetic block to be powered on or off.
[0011] Furthermore, an anesthesia laryngoscope also includes a tube-pressing plate, on which protruding pressure heads are evenly distributed. The pressure heads press the drug delivery tube tightly against the tube groove, and the gap between adjacent pressure heads is used to avoid tube-blocking devices.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. In this procedure, the medication delivery tube is inserted into the laryngeal cavity during the insertion of the laryngoscopy, eliminating the need for additional tube placement after the laryngoscope is inserted. This simplifies the surgical procedure and improves ease of use. The laryngoscopy integrates the medication delivery tube with the laryngoscope, avoiding the need for secondary tube placement and reducing the risk of damage to the laryngeal mucosa, such as scratches, edema, and bleeding. The groove allows the medication delivery tube to remain stably positioned near the laryngeal cavity, and the doctor can fine-tune the length of the end of the tube extending beyond the groove to ensure accurate delivery of the medication to the target location.
[0014] 2. In this utility model, the newly added pressure plate of the laryngoscope has protruding pressure heads distributed at equal intervals. The pressure heads press the drug delivery tube tightly to ensure that it is in close contact with the tube groove, which makes it easy to accurately place the drug delivery tube into the tube groove. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of an anesthesia laryngoscope and its drug delivery tube.
[0016] Figure 2 This is a schematic diagram of an anesthesia laryngoscope, a drug delivery tube, and a depressor plate.
[0017] Figure 3 This is a structural diagram of the bottom of an anesthesia laryngoscope.
[0018] Figure 4 This is a schematic diagram of the structure of the tip of an anesthesia laryngoscope.
[0019] Figure 5 This is a cross-sectional view of the baffle device;
[0020] Figure 6 This is a schematic diagram of the pipe-blocking device.
[0021] In the diagram: 1. Throat opening rod; 2. Tipping head; 3. Miniature camera; 4. Tube groove; 5. Handle; 6. Display; 7. Switch; 8. Drug delivery tube; 9. Tube blocking device; 10. Sleeve; 11. Telescopic column; 12. Spring groove; 13. Spring; 14. Electromagnetic block; 15. Tube pressing plate; 16. Pressing head. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1: Please refer to Figures 1-6 An anesthesia laryngoscope includes a handle 5 and a laryngeal opening rod 1. The handle 5 is connected to the end of the laryngeal opening rod 1 and is perpendicular to the laryngeal opening rod 1. The end of the laryngeal opening rod 1 away from the handle 5 has an arc-shaped protrusion 2 that curves upward toward the handle 5. The protrusion 2 is mounted with a mounting groove on the side facing away from the handle 5. A miniature camera 3 is installed in the mounting groove, and a waterproof lens is sealed at the opening of the mounting groove. A display 6 is installed on the end of the handle 5 away from the laryngeal opening rod 1. The miniature camera 3 transmits video signals to the display 6. A continuous tube groove 4 is provided on the side of the laryngeal opening rod 1 and the protrusion 2 facing away from the handle 5. The tube groove 4 is used to place a drug delivery tube 8. The tube groove 4 has an open structure. A row of equally spaced tube-blocking devices 9 is provided at the opening of the tube groove 4 to prevent the drug delivery tube 8 from falling out of the tube groove 4. The tube-blocking devices 9 have a telescopic structure. A switch 7 that controls the telescopic extension of the tube-blocking devices 9 is located at the end of the handle 5 away from the laryngeal opening rod 1. A lithium battery for powering the entire device is provided inside the handle 5.
[0024] The pipe-blocking device 9 includes a sleeve 10 disposed inside the wall of one side of the mounting groove. An electromagnetic block 14 is provided at the inner end of the sleeve 10. The outer end of the sleeve 10 is flush with the side wall of the mounting groove. A telescopic column 11 is slidably installed inside the sleeve 10. The head of the telescopic column 11 extends out of the sleeve 10 and abuts against the wall of the other side of the mounting groove. The telescopic column 11 has a spring groove 12 inside. A spring 13 is inserted into the spring groove 12. The end of the spring 13 extends out of the spring groove 12 and abuts against the electromagnetic block 14. The telescopic column 11 is made of magnetic material. The switch 7 is used to control the electromagnetic block 14 to be powered on and off.
[0025] Working principle of this embodiment:
[0026] During operation, the doctor first inserts the medication delivery tube 8 along the groove 4, with the end of the tube 8 not protruding from the groove 4. Before inserting the medication delivery tube 8, the doctor controls the electromagnetic block 14 in the tube-blocking device 9 to be energized by operating the switch 7 at the distal end of the handle 5. When the electromagnetic block 14 is energized, the telescopic column 11, made of magnetic material, will be attracted by the electromagnetic block 14 and retract into the sleeve 10, allowing the medication delivery tube 8 to be easily inserted into the groove 4. Afterward, the doctor releases the switch 7, de-energizes the electromagnetic block 14, and the telescopic column 11 extends under the action of the spring 13, preventing the medication delivery tube 8 from falling out of the groove 4. Then, the doctor holds the handle 5 of the laryngoscope, ensuring that the laryngeal prong 1 and its end tip 2 can be smoothly inserted into the patient's larynx. At this time, the monitor 6 is turned on, and the image of the inside of the larynx captured by the miniature camera 3 through a waterproof lens will be transmitted to the monitor 6 in real time, providing the doctor with a clear view. Before administering the medication, the doctor fine-tunes the length of the end of the delivery tube 8 extending beyond the groove 4 until its end is close to the target position inside the larynx. The doctor then delivers the anesthetic drug into the larynx through the delivery tube 8. Before administering the medication, the switch 7 can be pressed again to retract the telescopic column 11. At this time, the groove 4 is released from the constriction of the delivery tube 8. The handle 5 and the laryngoscopy lever 1 can then be removed before administering the medication, reducing patient discomfort.
[0027] In this embodiment, the medication delivery tube 8 is inserted into the laryngeal cavity during the insertion of the laryngoscope, eliminating the need for additional tube placement after the laryngoscope is inserted. This simplifies the surgical procedure and improves ease of operation. The laryngoscope in this embodiment integrates the medication delivery tube 8 with the laryngoscope, avoiding the need for secondary tube placement and significantly reducing the risk of damage to the laryngeal mucosa, such as scratches, edema, and bleeding. The groove 4 allows the medication delivery tube 8 to remain stably positioned near the laryngeal cavity, and the surgeon can fine-tune the length of the end of the tube 8 extending beyond the groove 4 to ensure accurate drug delivery to the target location. This embodiment is simple to operate, reduces laryngeal damage, and enables precise drug delivery.
[0028] Example 2: Please refer to Figure 2An anesthesia laryngoscope, which differs from Embodiment 1 in that it further includes a tube-pressing plate 15, on which protruding pressing heads 16 are evenly distributed. The pressing heads 16 press the drug delivery tube 8 tightly against the tube groove 4, and the gap between adjacent pressing heads 16 is used to avoid the tube-blocking device 9.
[0029] In this embodiment, the newly added pressure plate 15 of the laryngoscope has protruding pressure heads 16 evenly distributed. The pressure heads 16 press the drug delivery tube 8 tightly to ensure that it is in close contact with the tube groove 4, so as to facilitate the accurate placement of the drug delivery tube 8 into the tube groove 4.
Claims
1. An anesthesia laryngoscope, comprising a handle (5) and a laryngeal stent (1), characterized in that: The handle (5) is connected to the end of the throat opener (1) and is perpendicular to the throat opener (1). The end of the throat opener (1) away from the handle (5) is provided with an arc-shaped upturned head (2) that curves towards the handle (5). The upturned head (2) is provided with a mounting groove on the side facing away from the handle (5). A miniature camera (3) is installed in the mounting groove. The opening of the mounting groove is sealed with a waterproof lens. A display (6) is installed at the end of the handle (5) away from the throat opener (1). The miniature camera (3) transmits video signals to the display (6). The throat opening rod (1) and the tilting head (2) are provided with a continuous tube groove (4) on the side facing away from the handle (5). The tube groove (4) is used to place the drug delivery tube (8). The tube groove (4) is an open structure. A row of tube-blocking devices (9) are arranged at equal intervals at the opening of the tube groove (4). The tube-blocking devices (9) are used to prevent the drug delivery tube (8) from falling out of the tube groove (4). The tube-blocking devices (9) are telescopic. The switch (7) that controls the extension and retraction of the tube-blocking devices (9) is located at the end of the handle (5) away from the throat rod (1). The handle (5) is provided with a lithium battery for powering the entire device.
2. A laryngoscope according to claim 1, wherein: The tube-blocking device (9) includes a sleeve (10) disposed inside the wall of one side of the mounting groove. An electromagnetic block (14) is provided at the inner end of the sleeve (10). The outer end of the sleeve (10) is flush with the side wall of the mounting groove. A telescopic column (11) is slidably installed inside the sleeve (10). The head of the telescopic column (11) extends out from the sleeve (10) and abuts against the wall of the other side of the mounting groove. A spring groove (12) is provided inside the telescopic column (11). A spring (13) is inserted into the spring groove (12). The end of the spring (13) extends out of the spring groove (12) and abuts against the electromagnetic block (14). The telescopic column (11) is made of magnetic material. The switch (7) is used to control the electromagnetic block (14) to be powered on and off.
3. A laryngoscope according to claim 1, wherein, It also includes a pressure plate (15): the pressure plate (15) has protruding pressure heads (16) evenly distributed on it. The pressure heads (16) press the drug delivery tube (8) tightly so that it is in close contact with the tube groove (4). The gap between adjacent pressure heads (16) is used to avoid the tube blocking device (9).