A laryngoscope support
By designing the distal end of the laryngoscope to have a double-lip structure and a lever fixator, the problem of exposure when the anterior commissure is difficult to expose is solved, enabling more efficient and safer pharyngeal surgery, reducing damage to the contralateral vocal cords, and improving the success rate of surgery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN HOSPITAL FUDAN UNIV
- Filing Date
- 2025-05-07
- Publication Date
- 2026-07-28
AI Technical Summary
Current laryngoscopy is insufficient for fully exposing lesions during pharyngeal surgery, especially when the anterior commissure is difficult to expose, and it is easy to damage the contralateral vocal cord, leading to surgical failure or incomplete exposure.
Design a laryngoscope kit with a double-lip structure at the distal end of the laryngoscope. Combined with a lever fixator, the distance between the anterior commissure and the distal end of the laryngoscope is increased through a U-shaped slot design. The lever and fixator are used to expand the field of vision and protect normal tissues.
This allows for exposure of the anterior commissure, reduces damage to the contralateral vocal cord, improves surgical efficiency and success rate, and provides better safety assurance.
Smart Images
Figure CN224557447U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a laryngoscope support, belonging to the field of medical device technology. Background Technology
[0002] Laryngoscopy is generally used in clinical practice to perform laryngoscopic surgery on the pharynx and larynx more conveniently and safely, and is suitable for patients with difficulty in exposing the anterior commissure.
[0003] Laryngoscopy, a procedure with a long history, uses a hollow metal laryngoscope to directly access the pharyngeal cavity, allowing visualization of most patients' pharyngeal spaces for surgery. However, in practice, we have encountered difficulties such as the inability to expose the entire anterior commissure of the vocal cords, thus preventing the completion of the surgery or incomplete resection. During the procedure, the contralateral vocal cords may sometimes obstruct the operation and are easily damaged due to their proximity. Furthermore, the narrow space in the pharynx and the confined space at the end of the laryngoscope sometimes prevents adequate visualization of relatively extensive lesions. Summary of the Invention
[0004] The purpose of this invention is to provide a laryngoscope, and more specifically, a laryngoscope kit (referred to as a "laryngoscopy support") for laryngoscopy surgery. The overall design of the laryngoscope is similar to that of a traditional laryngoscope, but significant improvements have been made:
[0005] Firstly, designing the laryngoscope end with U-shaped slots on both sides would create a design where the distal end of the laryngoscope forms an anterior lip close to the handle and a posterior lip far away from the handle. The lengths of the anterior and posterior lips are similar to the oblique tube structure of the distal end of existing laryngoscopes. This would facilitate lifting only the vallecula during laryngoscope insertion, increasing the distance between the anterior commissure and the distal end of the laryngoscope, thereby enabling the exposure of the anterior commissure through laryngeal manipulation.
[0006] Secondly, with the assistance of the laryngoscope lever and lever fixator, the laryngoscope field of view can be expanded, and tissues that obstruct the operation, such as the epiglottis and the contralateral vocal cord, can be pulled away. This allows for better exposure of the lesion, protection of normal tissue, and provides patients with greater safety and a better prognosis, thereby improving surgical efficiency and success rate.
[0007] The present invention adopts the following technical solution:
[0008] A laryngoscope has a tubular body with a proximal end and a distal end, including the laryngoscope body and a lever fixator; the distal end of the laryngoscope body has a double-lip structure, with a front lip closer to the handle and a rear lip farther from the handle; the lever fixator has two lever limiting structures coaxially arranged to fix the lever, as well as an inner fixing member 10 and an outer fixing member 11 that can be fixedly connected to the proximal edge of the laryngoscope body, wherein the inner fixing member is fixed inside the tube of the laryngoscope body, and the outer fixing member 11 is fixed outside the tube of the laryngoscope body.
[0009] In one embodiment, the inner fixing member 10 and the outer fixing member 11 of the lever fixator are both plate-shaped, wherein the outer fixing member 14 is provided with a fixing rod 12 and a fastening nut 13, and operating the fastening nut 13 can press and fix the fixing rod 13 against the proximal edge of the laryngoscope body.
[0010] In another embodiment, the inner fixing member 10 of the lever fixator is plate-shaped, and the outer fixing member 11 is a round rod 16. The handle of the laryngoscope body is provided with a channel 4, and the round rod 16 can be inserted into the channel 4 for fixation.
[0011] Preferably, in the two lever limiting structures, the first lever limiting structure includes two upper limit plates 8, an upper screw fixing rod 14, and a fixing screw 15. By combining the upper screw fixing rod 14 and the fixing screw 15, the proximal end of the lever is lifted up, which can allow the distal end of the lever to open the epiglottis, or normal tissues such as the vocal cords and ventricular folds on the opposite side of the lesion.
[0012] Preferably, the laryngoscope body is in the shape of a rounded square tube.
[0013] Furthermore, a laryngoscope handle 6 is vertically fixed to the proximal end of the laryngoscope body, and the laryngoscope handle 6 is provided with a laryngoscope fixing hole 5 for fixing the laryngoscope.
[0014] Preferably, the front lip and the back lip protrude forward to the same length, or the back lip is slightly longer.
[0015] Preferably, a channel 7 is welded obliquely to the side wall of the laryngoscope body. The channel 7 is used to insert an illumination beam or to connect a suction pump and a lever retainer.
[0016] Preferably, the laryngoscope is a supporting laryngoscope that uses a laser or other capability platform to perform pharyngeal surgery.
[0017] The beneficial effects of this invention are as follows: it enables more convenient and safer clinical performance of pharyngeal laryngoscopy. This laryngoscope allows for visualization of patients with difficulty in exposing the anterior commissure, facilitating surgery. The use of the laryngoscope lever further enhances the exposure of the surgical site, reduces damage to the contralateral vocal cords, and achieves better lesion removal with reduced trauma. It is particularly suitable for patients with difficulty in exposing the anterior commissure. Through the manipulation of the anterior and posterior lips, as well as the laryngoscope lever and lever fixator, the laryngoscope's field of vision can be expanded, protecting normal tissues and providing greater safety and a better prognosis for the patient. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the laryngoscope body in this utility model.
[0019] Figure 2This is a structural diagram of the lever fixer in Embodiment 1 of this utility model.
[0020] Figure 3 This is a structural diagram of the lever fixer in Embodiment 2 of this utility model.
[0021] Figure 4 This is a schematic diagram of the lever fixer and lever fixing in Embodiment 2 of this utility model.
[0022] Figure 5 This is a schematic diagram of the structure of the present invention in Embodiment 2.
[0023] In the diagram, 1. (Upper lip of the laryngoscope), 2. (Lower lip of the laryngoscope), 3. (Anterior opening of the laryngoscope), 4.
[0024] 4. (Channel on the laryngoscope handle for securing accessories) 5. Laryngoscope fixing hole 6. Laryngoscope handle 7. (Channel on the side of the laryngoscope for placing accessories) 8. Upper limit plate 9. Lower limit hole 10. Inner fixing plate 11. Outer fixing plate 12. First nut fixing rod 13. First fastening nut 14. Second nut fixing rod 15. Second fastening nut 16. Round rod 17. Lever 18. Lever head Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0026] The terms "proximal," "distal," and "cephalic" used in this document are based on the relative orientation and position of the various components and elements of the medical device. Although not restrictive, "proximal" generally refers to the end of the medical device closest to the surgeon during normal use, while "distal" and "cephalic" generally refer to the end of the medical device furthest from the surgeon. The terms "axial" refer to the direction along the longitudinal axis of the laryngoscope body, "circumferential" refers to the circumferential direction around the longitudinal axis of the laryngoscope body, "radial" refers to the direction perpendicular to the longitudinal axis of the laryngoscope body, and "cross-section" refers to a cross-section perpendicular to the longitudinal axis.
[0027] Example One :
[0028] Figure 1 The structure of the laryngoscope body that supports the laryngoscope is shown. Figure 2 The structure of the lever retainer in this embodiment is shown. Figure 4 This is a design drawing of the lever retainer and the lever assembly in this embodiment. Figure 5 This is a schematic diagram of the laryngoscope in Embodiment 2. It can also be used as a reference for understanding the scheme in Embodiment 1.
[0029] The device mainly consists of a metal handle and an insertion part that is inserted into the mouth and throat. During use, it can be used with appropriate accessories to achieve better exposure of the throat.
[0030] The following are the design illustrations and detailed descriptions.
[0031] In the diagram, 1 is the upper lip of the laryngoscope, 2 is the lower lip of the laryngoscope, 3 is the front opening of the laryngoscope, 4 is the hole on the laryngoscope handle for fixing accessories, 5 is the laryngoscope fixing hole, 6 is the laryngoscope handle, 7 is the hole on the side of the laryngoscope for placing accessories, 8 is the upper limit plate, 9 is the lower limit hole, 10 is the inner fixing plate, 11 is the outer fixing plate, 12 is the first nut fixing rod, 13 is the first fastening nut, 14 is the second nut fixing rod, 15 is the second fastening nut, 16 is the round rod, 17 is the lever, and 18 is the lever head.
[0032] See Figure 1 A laryngoscope, the laryngoscope body is tubular, having a proximal end and a distal end, including the laryngoscope body and a lever fixator; the distal end of the laryngoscope body has a double-lip structure, and has a front lip 1 closer to the handle and a rear lip 2 farther from the handle;
[0033] See Figure 2 The lever fixer has two lever limiting structures coaxially arranged to fix the lever, and an inner fixing member 10 and an outer fixing member 11 that can be fixedly connected to the proximal edge of the laryngoscope body. The inner fixing member is fixed inside the tube of the laryngoscope body, and the outer fixing member 11 is fixed outside the tube of the laryngoscope body.
[0034] In this embodiment, see Figure 2 and refer to Figure 5 The inner fixing member 10 and the outer fixing member 11 of the lever fixer are both plate-shaped. The outer fixing member 14 is provided with a fixing rod 12 and a fastening nut 13. By operating the fastening nut 13, the fixing rod 13 can be pressed and fixed against the proximal edge of the laryngoscope body.
[0035] Combination Figure 4 In the two lever limiting structures, the first lever limiting structure includes two upper limit plates 8, an upper screw fixing rod 14, and a fixing screw 15. By combining the upper screw fixing rod 14 and the fixing screw 15, the proximal end of the lever is lifted up, which can cause the distal end of the lever to open the epiglottis or the vocal cord on the opposite side of the epiglottis.
[0036] Combination Figure 1 and Figure 5 The laryngoscope body is in the shape of a rounded square tube.
[0037] See Figure 5A laryngoscope handle 6 is vertically fixed to the proximal end of the laryngoscope body, and the laryngoscope handle 6 is provided with a laryngoscope fixing hole 5 for fixing the laryngoscope.
[0038] See Figure 1 and Figure 5 The front and back lips protrude forward to the same length, or the front lip is slightly longer.
[0039] See Figure 1 and Figure 5 An inclined channel 7 is welded on the side wall of the laryngoscope body. The channel 7 is used to insert an illumination beam or to connect a suction pump.
[0040] In this embodiment, the laryngoscope is a supporting laryngoscope used for surgery with a laser or other energy platform.
[0041] exist Figure 2 In the diagram, 8 is the upper limiting plate for the laryngoscope lever and other accessories; the limiting plates on both sides together fix the end of the lever and other accessories in a relatively fixed position; 9 is the lower limiting hole; through the combined action of these two limiting holes, the position of the lever and other accessories is fixed; 10 and 11 are the inner and outer metal plates that fix the lever retainer to the laryngoscope; 12 is the fixing rod of the lever retainer fastening screw; 13 is the fastening nut, used to firmly fix the fastener to the laryngoscope; 14 is the upper screw fixing rod; 15 is the fastening screw; by combining the fastening screws 14 and 15, the end of the lever can be lifted up, allowing the end of the lever to push aside the epiglottis or the vocal cords on the opposite side, or other tissues that obstruct the operation.
[0042] This invention shortens the anterior lip and increases the U-shaped groove at the end of the laryngoscope, allowing only the vallecula to be raised during laryngoscope insertion. This increases the distance between the anterior commissure and the end of the laryngoscope, enabling the exposure of the anterior commissure through laryngeal manipulation. Furthermore, with the assistance of the laryngoscope lever and fixator, obstructive tissues such as the epiglottis and contralateral vocal cords can be pulled away, leading to better exposure of the lesion and thus improving surgical efficiency and success rate.
[0043] Here, we primarily need to protect the design of the laryngoscope's tip, as well as the laryngoscope lever and lever retainer. We design the laryngoscope tip to be of roughly equal length, or even with the anterior lip shorter and the posterior lip slightly longer. In actual use, the laryngoscope can be inserted into the vallecula to lift the base of the tongue, and the epiglottis can be lifted using the laryngoscope lever and lever retainer. During the procedure, the assistant can assist in better and more comprehensive exposure in cases where the anterior commissure is poorly exposed by pressing on the larynx. Furthermore, the open design on both sides of the tip facilitates exposure of the epiglottis and pharynx.
[0044] This laryngoscope allows for visualization of patients with difficult anterior commissure exposure, facilitating surgery. The use of the laryngoscope lever also improves visualization of the surgical site and reduces damage to the contralateral vocal cords, resulting in better lesion removal and less trauma.
[0045] In this embodiment, the laryngoscope lever and lever retainer are as follows: Figure 4 It is assembled in this manner. It can be fixed to a laryngoscope, such as... Figure 5 As shown. It can also be done through and Figure 2 The lever retainer shown is used for fixing (Example 2). Thus, it is fixed in place. Figure 1 The right side of the laryngoscope. During use, the laryngoscope is first inserted into the pharyngeal cavity, and a lever and lever retainer are used as needed. This is to expose the lesion and facilitate surgery.
[0046] The laryngoscope is a frequently used instrument in clinical practice by otolaryngologists and head and neck surgeons. Doctors are generally familiar with its basic usage and setup procedures. This section mainly introduces the differences in this particular laryngoscope. Because it features anterior and posterior lips of varying lengths, in cases where exposure of the anterior commissure is difficult, we can choose a laryngoscope with the anterior and posterior lips of equal or slightly shorter lengths. The anterior lip is placed into the valgus epiglottis, and the laryngeal cavity is exposed by lifting the base of the tongue. An assistant then presses down on the larynx, pushing the anterior commissure downwards, thus better exposing the anterior part of the laryngeal cavity and facilitating surgery on such patients.
[0047] Example Two :
[0048] The structure and operation of this second embodiment are mostly the same as those of the first embodiment. To make the description more concise, the following mainly focuses on the differences from the first embodiment.
[0049] See Figure 3 and combined Figure 5 The structure of the lever fixator in this embodiment is different from that in embodiment one. The inner fixing member 10 of the lever fixator is plate-shaped, and the outer fixing member 11 is a round rod 16. The handle of the laryngoscope body is provided with a channel 4, and the round rod 16 can be inserted into the channel 4 to achieve fixation.
[0050] Figure 3 It is the same as Example 1 ( Figure 2 Another design for the laryngoscope lever fixator involves shaping the outer fixing plate into a round rod (16), which can be inserted into the laryngoscope handle and the left-side channels (4 or 7) for fixing instruments such as the laryngoscope lever in different positions, facilitating surgery on lesions in different locations. (See attached...) Figure 5 In the middle, the round rod 16 is specifically inserted into the channel 4 ( Figure 1 ).
[0051] The main difference between this second embodiment and the first embodiment lies in the method of fixing the lever fixator to the laryngoscope body. The second embodiment is also more convenient to fix than the first embodiment.
[0052] The above two embodiments are optional embodiments of this utility model. Those skilled in the art can make their own changes or improvements on this basis. Without departing from the general concept of this utility model, these changes or improvements should all fall within the scope of protection claimed by this utility model.
Claims
1. A laryngoscope support, the laryngoscope body being tubular, having a proximal end and a distal end, characterized in that: Includes the laryngoscope body and the lever retainer; The distal end of the laryngoscope body has a double-lip structure, with a front lip (1) closer to the handle and a rear lip (2) farther away from the handle; The lever fixer has two lever limiting structures coaxially arranged to fix the lever, and an inner fixing member (10) and an outer fixing member (11) that can be fixedly connected to the proximal edge of the laryngoscope body. The inner fixing member is fixed inside the tube of the laryngoscope body, and the outer fixing member (11) is fixed outside the tube of the laryngoscope body.
2. The laryngoscope as described in claim 1, characterized in that: The inner fixing part (10) and the outer fixing part (11) of the lever fixer are both plate-shaped. The outer fixing part (11) is provided with a fixing rod (12) and a fastening nut (13). By operating the fastening nut (13), the fixing rod (12) can be pressed and fixed against the proximal edge of the laryngoscope body.
3. The laryngoscope as described in claim 1, characterized in that: The inner fixing part (10) of the lever fixer is plate-shaped, and the outer fixing part (11) is a round rod (16). The handle of the laryngoscope body is provided with a channel (4), and the round rod (16) can be inserted into the channel (4) to achieve fixation.
4. The laryngoscope as described in claim 1, characterized in that: In the two lever limiting structures, the first lever limiting structure includes two upper limit plates (8), an upper screw fixing rod (14), and a fixing screw (15). By combining the upper screw fixing rod (14) and the fixing screw (15), the proximal end of the lever is lifted up, which can make the distal end of the lever open the epiglottis, or the vocal cord or ventricular fold on the opposite side of the lesion.
5. The laryngoscope as described in claim 1, characterized in that: The laryngoscope body is a rounded square tube.
6. The laryngoscope as described in claim 5, characterized in that: A laryngoscope handle (6) is vertically fixed to the proximal end of the laryngoscope body, and a laryngoscope fixing hole (5) is provided on the laryngoscope handle (6) for fixing the laryngoscope.
7. The laryngoscope as described in claim 1, characterized in that: The front lip (1) and the back lip (2) protrude forward to the same length, or the back lip is slightly longer.
8. The laryngoscope as described in claim 1, characterized in that: A channel (7) is welded obliquely to the side wall of the laryngoscope body. The channel (7) is used to insert an illumination beam or to connect a suction pump and a lever retainer.
9. The laryngoscope as described in claim 1, characterized in that: The laryngoscope in question is a type of supporting laryngoscope that utilizes an energy platform for pharyngeal surgery.