Separable epiglottis traction device for hard laryngoscopy
By designing a detachable epiglottic traction device, using an arc-shaped clamp and a micro-gear motor drive, the problem of adjusting the angle of the epiglottic clamping structure in existing rigid laryngoscopy examinations has been solved. This achieves rapid and reliable epiglottic clamping and traction, reduces surgical time, improves operational efficiency, and has a rapid sterilization function.
Patent Information
- Application Number
- CN202511912366.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-18
- Publication Date
- 2026-01-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing rigid laryngoscopy epiglottic clamping structure requires repeated angle adjustments, prolonging the operation time. Furthermore, the clamps need to enter through the laryngoscope's working channel, creating spatial conflicts with components such as the scope and light source, thus limiting the coordinated operation of instruments.
A separable epiglottis traction device is designed, which uses an arc-shaped clamp and a micro geared motor for drive. The separable clamping and traction of the epiglottis is achieved through a programmable control display and an electromagnet. Combined with an ultraviolet sterilization function, it ensures rapid sterilization and non-destructive operation.
It enables rapid and reliable clamping and traction of the epiglottis, reduces surgical time, avoids instrument conflicts, improves operational efficiency, and has a rapid sterilization function.
Smart Images

Figure CN121400765A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, specifically to a detachable epiglottic traction device for rigid laryngoscopy. Background Technology
[0002] Otolaryngology, or otolaryngology-head and neck surgery, is an important department in the medical field. It is mainly responsible for the diagnosis and treatment of diseases related to the ear, nose, throat, and head and neck. A laryngoscopy is a medical device used to examine, diagnose, and treat diseases of the larynx and surrounding tissues. It is widely used in otolaryngology, emergency medicine, anesthesiology, and other fields. The epiglottis is an important anatomical structure in the human pharynx, located behind the base of the tongue and above the laryngeal inlet. It plays a key role in breathing, swallowing, and phonation. In some cases, such as during anesthesia induction or when the patient loses consciousness, the epiglottis may collapse due to muscle relaxation, obstructing the airway and causing breathing difficulties or suffocation. By clamping and traction on the epiglottis, its collapse can be prevented, ensuring that the airway is unobstructed.
[0003] There are still some problems with existing epiglottic traction devices used in rigid laryngoscopy. Current epiglottic clamping structures usually use clamps for holding the epiglottis. When supporting the removal of epiglottic cysts under laryngoscopy, the straight clamps need to be repeatedly adjusted in angle, which prolongs the operation time. In addition, the clamps need to enter through the working channel of the laryngoscope, which creates spatial conflicts with the scope, light source and other components, and limits the coordinated operation of instruments. Therefore, those skilled in the art have provided a separable epiglottic traction device for rigid laryngoscopy to solve the problems mentioned in the background art. Summary of the Invention
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this invention provides a separable epiglottic traction device for rigid laryngoscopy, which solves the problems of current epiglottic clamping structures that typically use clamps for support during epiglottic cyst resection under laryngoscopy. These clamps require repeated angle adjustments, prolonging the operation time, and the clamps need to enter through the laryngoscope's working channel, creating spatial conflicts with the scope, light source, and other components, thus limiting the coordinated operation of the instruments.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: a separable epiglottic traction device for rigid laryngoscopy, comprising a handle, a programmable control display on the upper surface of the handle, a connector fixedly connected to the lower end of the handle, a connecting seat on the lower end of the connector, a connecting bend fixedly connected to the lower surface of the connecting seat, an inlet bend fixedly connected to the end of the connecting bend away from the connecting seat, and a traction structure provided inside the inlet bend;
[0008] The traction structure includes an arc-shaped clamping plate. A groove is formed at one end of the arc-shaped clamping plate away from the connecting seat. A second micro geared motor is fixedly connected to one end of the inner wall of the groove near the connecting seat. A drive rod is fixedly connected to the output end of the second micro geared motor. An arc-shaped clamping block is fixedly sleeved on the outside of the drive rod. A second corrugated flexible pad is fixedly connected to the upper end face of the arc-shaped clamping block. A first corrugated flexible pad is fixedly connected to the lower end face of the arc-shaped clamping plate.
[0009] Preferably, a through hole is provided at the center of the end face of the inlet bend near the connecting bend. A traction wire is fixedly connected to the center of the end face of the arc-shaped clamp near the connecting bend. The traction wire passes through one side wall of the inlet bend and extends into the interior of the inlet bend, with a miniature conductive slip ring fixedly connected to its end. A miniature bracket is fixedly connected to the fixed end of the miniature conductive slip ring. A miniature take-up reel is fixedly connected to the rotating end of the miniature conductive slip ring inside the miniature bracket. A first miniature geared motor is fixedly connected to the other side of the miniature bracket. The output end of the first miniature geared motor passes through one side wall of the miniature bracket and extends into the interior of the miniature bracket, with its end fixedly connected to one side wall of the miniature take-up reel. The motor is started by a second miniature geared motor, which provides electrical energy during the rotation of the miniature conductive slip ring. The second miniature geared motor drives the drive rod to rotate, releasing the abutment. The arc-shaped clamp and the arc-shaped clamp block are then pulled out through the traction wire.
[0010] Preferably, the upper surface of the arc-shaped clamp is provided with a plurality of second permanent magnets, and a second electromagnet is fixedly connected to the upper inner wall of the upper end of the throat bend of the plurality of second permanent magnets. The plurality of second electromagnets are de-energized by the second button, so that the second electromagnets are separated from the second permanent magnets, and the arc-shaped clamp is separated from the throat bend.
[0011] Preferably, a second button is provided at the upper center of the front end face of the handle, and a first button is provided at the upper center of the front end face of the connector. The first button controls the device at the bottom of the connector, and the second button controls the on / off switch of the programmable control display.
[0012] Preferably, the connector includes a connecting post, a slider is fixedly connected to the lower end face of the connecting post, and an installation groove is provided at the center of one side wall of the connecting seat. A disc spring is provided inside the installation groove. During the installation process, the slider squeezes the disc spring, and the tension of the disc spring pushes the slider upward, which facilitates the connection between the handle and the connecting seat.
[0013] Preferably, a first permanent magnet is fixedly connected to the upper end face of the disc spring, and a first electromagnet is fixedly connected to the lower end face of the upper slider of the first permanent magnet. The first electromagnet generates magnetism when energized and magnetically attracts the first permanent magnet, thereby improving the connectivity.
[0014] Preferably, multiple ultraviolet germicidal lamps are provided on the two inner side walls of the inlet bend. During the winding process, multiple ultraviolet germicidal lamps are controlled to irradiate the traction power line. The high-irradiance UVC light source and precise dosage control, through short distance and high power design, meet the requirements of rapid sterilization. The diameter of the traction power line is the same as the diameter of the through hole to prevent ultraviolet scattering and facilitate the sterilization of the traction power line.
[0015] Preferably, the outer walls of the arc-shaped clamp, the outer walls of the groove, the outer walls of the arc-shaped clamping block, the outer walls of the first corrugated flexible pad, and the outer walls of the second corrugated flexible pad are all provided with arc-shaped chamfers. The arc-shaped chamfers reduce the impact on the pharynx and epiglottis and prevent scratching of the pharynx and epiglottis.
[0016] (III) Beneficial Effects
[0017] This invention provides a detachable epiglottic traction device for rigid laryngoscopy. It has the following advantages:
[0018] 1. In this invention, the second micro geared motor is started by controlling the second button. The second micro geared motor drives the drive rod to rotate, and the drive rod drives the arc-shaped clamping block to rotate, thereby unfolding the arc-shaped clamping block and the front end of the arc-shaped clamping plate. Then, the second micro geared motor is started in reverse to clamp and support the epiglottis. The second button controls the de-energization of multiple second electromagnets, so that the second electromagnets are separated from the second permanent magnets, and the arc-shaped clamping plate is separated from the inlet bend. The connecting bend and the inlet bend are then pulled out to facilitate clamping and traction of the epiglottis.
[0019] 2. In this invention, the second micro-reduction motor is started after the operation. The micro-conductive slip ring provides electrical energy during the rotation process. The second micro-reduction motor drives the drive rod to rotate, which releases the peristalsis. Then, the arc-shaped clamp and arc-shaped clamp block are pulled out through the traction wire. After being pulled out, the second micro-reduction motor is started. The second micro-reduction motor drives the micro winding reel to rotate, so that the rotating end of the micro-conductive slip ring rotates and winds the traction wire around the rotating end of the micro-conductive slip ring, which facilitates winding.
[0020] 3. In this invention, during the winding process, multiple ultraviolet germicidal lamps are controlled to irradiate the traction power line. The high-irradiance UVC light source and precise dosage control, along with the short-distance and high-power design, enable rapid sterilization. The diameter of the traction power line is the same as the diameter of the through hole to prevent ultraviolet scattering and facilitate the sterilization of the traction power line.
[0021] 4. In this invention, during the installation process, the slider squeezes the disc spring, and the tension of the disc spring pushes the slider upward, which facilitates the connection between the handle and the connecting seat. The first electromagnet generates magnetism when energized, and the magnets magnetically attract each other to the first permanent magnet, thereby improving the connectivity. Attached Figure Description
[0022] Figure 1 This is a perspective view of the present invention;
[0023] Figure 2 This is a three-dimensional sectional view of the present invention;
[0024] Figure 3 This is a perspective view of the traction structure of the present invention;
[0025] Figure 4 This is a three-dimensional unfolded view of the traction structure of the present invention;
[0026] Figure 5 This is a three-dimensional exploded view of the traction structure of the present invention;
[0027] Figure 6 for Figure 2 Enlarged view of point A in the middle;
[0028] Figure 7 for Figure 2 Enlarged diagram of point B in the middle.
[0029] The components include: 1. Handle; 2. Connector; 3. Second button; 4. Connecting bend; 5. Inlet bend; 6. First button; 7. Programmable control display; 8. Ultraviolet germicidal lamp; 9. Traction structure; 10. Through hole; 11. Connecting seat.
[0030] 201. Mounting slot; 202. Connecting post; 203. Slider; 204. First electromagnet; 205. Disc spring; 206. First permanent magnet;
[0031] 901. Miniature support; 902. Miniature conductive slip ring; 903. Miniature winding reel; 904. First miniature geared motor; 905. Traction wire; 906. Arc-shaped clamp; 907. Groove; 908. Arc-shaped clamping block; 909. First corrugated flexible pad; 910. Second corrugated flexible pad; 911. Second miniature geared motor; 912. Drive rod; 913. Second electromagnet; 914. Second permanent magnet. Detailed Implementation
[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0033] Example 1:
[0034] like Figure 1-7As shown, this embodiment of the invention provides a separable epiglottic traction device for rigid laryngoscopy, including a handle 1, a programmable control display 7 on the upper surface of the handle 1, a connector 2 fixedly connected to the lower end of the handle 1, a connector seat 11 at the lower end of the connector 2, a connecting bend 4 fixedly connected to the lower surface of the connector seat 11, an inlet bend 5 fixedly connected to the end of the connecting bend 4 away from the connector seat 11, and a traction structure 9 provided inside the inlet bend 5.
[0035] The traction structure 9 includes an arc-shaped clamping plate 906. A groove 907 is provided at one end of the arc-shaped clamping plate 906 away from the connecting seat 11. A second micro geared motor 911 is fixedly connected to one end of the inner side wall of the groove 907 near the connecting seat 11. A drive rod 912 is fixedly connected to the output end of the second micro geared motor 911. An arc-shaped clamping block 908 is fixedly sleeved on the outside of the drive rod 912. A second corrugated flexible pad 910 is fixedly connected to the upper end face of the arc-shaped clamping block 908. A first corrugated flexible pad 909 is fixedly connected to the lower end face of the arc-shaped clamping plate 906.
[0036] A through hole 10 is provided at the center of the end face of the inlet bend 5 near the connecting bend 4. A traction power line 905 is fixedly connected to the center of the end face of the arc-shaped clamp 906 near the connecting bend 4. The traction power line 905 passes through one side wall of the inlet bend 5 and extends into the interior of the inlet bend 5. A miniature conductive slip ring 902 is fixedly connected to the end of the miniature conductive slip ring 902. A miniature bracket 901 is fixedly connected to the fixed end of the miniature conductive slip ring 902. A miniature winding reel 903 is fixedly connected to the rotating end of the miniature conductive slip ring 902 inside the miniature bracket 901. On the other side, a first micro geared motor 904 is fixedly connected. The output end of the first micro geared motor 904 passes through one side wall of the micro bracket 901 and extends into the interior of the micro bracket 901. The end is fixedly connected to one side wall of the micro take-up reel 903. It is started by a second micro geared motor 911. During the rotation process, the micro conductive slip ring 902 provides electrical energy. The second micro geared motor 911 drives the drive rod 912 to rotate, which releases the abutment. Then, the arc-shaped clamp 906 and the arc-shaped clamp block 908 are pulled out through the traction wire 905.
[0037] The upper surface of the arc-shaped clamp 906 is provided with multiple second permanent magnets 914. Each of the multiple second permanent magnets 914 is fixedly connected to the upper inner wall of the inlet bend 5. The multiple second electromagnets 913 are de-energized by the second button 3, so that the second electromagnets 913 are separated from the second permanent magnets 914, and the arc-shaped clamp 906 is separated from the inlet bend 5.
[0038] A second button 3 is located at the upper center of the front end face of the handle 1, and a first button 6 is located at the upper center of the front end face of the connector 11. The first button 6 controls the device at the bottom of the connector 11, and the second button 3 controls the switch of the programmable control display 7.
[0039] Multiple ultraviolet germicidal lamps 8 are installed on the inner walls of the inlet bend 5. During the winding process, the multiple ultraviolet germicidal lamps 8 are controlled to irradiate the traction power line 905. The high-irradiance UVC light source and precise dosage control, through short distance and high power design, meet the requirements of rapid sterilization. The diameter of the traction power line 905 is the same as the diameter of the through hole 10 to prevent ultraviolet scattering and facilitate the sterilization of the traction power line 905.
[0040] The outer walls of the arc-shaped clamp 906, the outer walls of the groove 907, the outer walls of the arc-shaped clamp 908, the outer walls of the first corrugated flexible pad 909 and the outer walls of the second corrugated flexible pad 910 are all provided with arc-shaped chamfers. The arc-shaped chamfers reduce the impact on the pharynx and epiglottis and prevent scratching of the pharynx and epiglottis.
[0041] Example 2:
[0042] like Figure 1 , 2 As shown in Figure 6, the difference between this embodiment and Embodiment 1 is that the connector 2 includes a connecting post 202, and a slider 203 is fixedly connected to the lower end face of the connecting post 202. An installation groove 201 is provided at the center of one side wall of the connecting seat 11. A disc spring 205 is provided inside the installation groove 201. During the installation process, the slider 203 squeezes the disc spring 205, and the tension of the disc spring 205 pushes the slider 203 upward, which facilitates the connection between the handle 1 and the connecting seat 11.
[0043] A first permanent magnet 206 is fixedly connected to the upper end face of the disc spring 205, and a first electromagnet 204 is fixedly connected to the lower end face of the upper slider 203 of the first permanent magnet 206. When the first electromagnet 204 is energized, it generates magnetism and magnetically attracts the first permanent magnet 206, thereby improving the connectivity.
[0044] Working principle: In use, the inlet tube 5 and the connecting tube 4 are first disinfected. The doctor holds the handle 1 and inserts the inlet tube 5 and the connecting tube 4 into the throat. The camera at the end of the inlet tube 5 monitors the condition inside the throat. Then, the second button 3 controls the second micro reduction motor 911 to start. The second micro reduction motor 911 drives the drive rod 912 to rotate, and the drive rod 912 drives the arc-shaped clamp 908 to rotate, thereby unfolding the front end of the arc-shaped clamp 908 and the arc-shaped clamp plate 906. Then, the second micro reduction motor 911 is controlled to start in reverse to clamp and support the epiglottis. The micro pressure sensor monitors the process. This is a commonly used technical solution in existing monitoring technology and will not be described in detail here.
[0045] After clamping, the second button 3 controls the de-energization of multiple second electromagnets 913, causing the second electromagnets 913 to separate from the second permanent magnet 914, and the arc-shaped clamping plate 906 to separate from the inlet bend 5. The connecting bend 4 and the inlet bend 5 are then pulled out. At this time, the first micro reduction motor 904 is controlled to start in reverse. The first micro reduction motor 904 drives the micro take-up reel 903 to rotate in reverse, releasing the traction power line 905. This allows the arc-shaped clamping block 908 and the first corrugated flexible pad 909 and the second corrugated flexible pad 910 on the arc-shaped clamping plate 906 to continue clamping, while the connecting bend 4 and the inlet bend 5 are removed.
[0046] After the operation, the second micro geared motor 911 is started, and the micro conductive slip ring 902 provides power during the rotation process. The second micro geared motor 911 drives the drive rod 912 to rotate, which releases the perineum. Then, the arc-shaped clamp 906 and arc-shaped clamp 908 are pulled out through the traction wire 905. After being pulled out, the second micro geared motor 911 is started. The second micro geared motor 911 drives the micro winding reel 903 to rotate, so that the rotating end of the micro conductive slip ring 902 rotates and winds the traction wire 905 around the rotating end of the micro conductive slip ring 902, which facilitates winding.
[0047] During the winding process, multiple ultraviolet germicidal lamps 8 are controlled to irradiate the traction power line 905. The high-irradiance UVC light source and precise dosage control, along with the short-distance and high-power design, enable rapid sterilization. The diameter of the traction power line 905 is the same as the diameter of the through hole 10 to prevent ultraviolet scattering and facilitate the sterilization of the traction power line 905. Since the outer side of the traction power line 905 is a high-strength medical-grade traction rope and the inner side is an electrical wire, it is a commonly used technical solution in the existing traction power line 905 technology, which will not be elaborated on here.
[0048] The control panel on the programmable control display 7 enables the start-up and control of the equipment through a human-machine interface and an electrical control system. Input signal processing converts the operator's instructions into electrical signals, and output signal transmission transmits control signals to each actuator to achieve the control of the above-mentioned equipment. This is a commonly used technical solution in existing control systems and will not be elaborated on further here.
[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A detachable epiglottic traction device for rigid laryngoscopy, comprising a handle (1), characterized in that: The upper end of the handle (1) is provided with a programmable control display (7), the lower end of the handle (1) is fixedly connected to a connector (2), the lower end of the connector (2) is provided with a connector seat (11), the lower end of the connector seat (11) is fixedly connected to a connecting bend (4), the end of the connecting bend (4) away from the connector seat (11) is fixedly connected to an inlet bend (5), and the inlet bend (5) is provided with a traction structure (9) inside. The traction structure (9) includes an arc-shaped clamp (906). A groove (907) is provided at one end of the arc-shaped clamp (906) away from the connecting seat (11). A second micro geared motor (911) is fixedly connected to one end of the inner side wall of the groove (907) near the connecting seat (11). A drive rod (912) is fixedly connected to the output end of the second micro geared motor (911). An arc-shaped clamp (908) is fixedly sleeved on the outside of the drive rod (912). A second corrugated flexible pad (910) is fixedly connected to the upper end face of the arc-shaped clamp (908). A first corrugated flexible pad (909) is fixedly connected to the lower end face of the arc-shaped clamp (906).
2. The detachable epiglottic traction device for rigid laryngoscopy according to claim 1, characterized in that: The inlet bend (5) has a through hole (10) at the center of one end face near the connecting bend (4). The arc-shaped clamp (906) is fixedly connected to a traction wire (905) at the center of one end face near the connecting bend (4). The traction wire (905) passes through one side wall of the inlet bend (5) and extends into the inside of the inlet bend (5). A miniature conductive slip ring (902) is fixedly connected to the end of the miniature conductive slip ring (902). A miniature bracket (901) is fixedly connected to the fixed end of the miniature conductive slip ring (902) inside the miniature bracket (901). A miniature take-up reel (903) is fixedly connected to the rotating end of the miniature conductive slip ring (902) inside the miniature bracket (901). A first miniature geared motor (904) is fixedly connected to the other side of the miniature bracket (901). The output end of the first miniature geared motor (904) passes through one side wall of the miniature bracket (901) and extends into the inside of the miniature bracket (901). The end of the first miniature geared motor (904) is fixedly connected to one side wall of the miniature take-up reel (903).
3. A detachable epiglottic traction device for rigid laryngoscopy as described in claim 1, characterized in that: The upper end face of the arc-shaped clamp (906) is provided with a plurality of second permanent magnets (914), and a second electromagnet (913) is fixedly connected to the upper inner wall of the upper throat bend (5) of the plurality of second permanent magnets (914).
4. A detachable epiglottic traction device for rigid laryngoscopy as described in claim 1, characterized in that: The handle (1) has a second button (3) located at the upper center of the front end face, and the connector (11) has a first button (6) located at the upper center of the front end face.
5. A detachable epiglottic traction device for rigid laryngoscopy as described in claim 1, characterized in that: The connector (2) includes a connecting post (202), a slider (203) is fixedly connected to the lower end face of the connecting post (202), and an installation groove (201) is provided at the center of one side wall of the connecting seat (11), and a disc spring (205) is provided inside the installation groove (201).
6. A detachable epiglottic traction device for rigid laryngoscopy according to claim 5, characterized in that: The upper end face of the disc spring (205) is fixedly connected to the first permanent magnet (206), and the lower end face of the upper slider (203) of the first permanent magnet (206) is fixedly connected to the first electromagnet (204).
7. A detachable epiglottic traction device for rigid laryngoscopy according to claim 1, characterized in that: Multiple ultraviolet germicidal lamps (8) are provided on the two inner walls of the inlet bend (5).
8. A detachable epiglottic traction device for rigid laryngoscopy according to claim 1, characterized in that: The outer walls of the arc-shaped clamping plate (906), the outer walls of the groove (907), the outer walls of the arc-shaped clamping block (908), the outer walls of the first corrugated flexible pad (909), and the outer walls of the second corrugated flexible pad (910) are all provided with arc-shaped chamfers.
