An auxiliary dilator for preventing nasal cavity scar contracture
By designing a deformable metal frame structure and a silicone nasal expander, the problem of existing nasal expanders being unable to adapt to different nostril sizes has been solved, achieving adjustment of the nasal cavity spacing and ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE 910TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
- Filing Date
- 2025-03-19
- Publication Date
- 2026-07-07
AI Technical Summary
Existing nostril expanders cannot accommodate nostrils of different sizes, resulting in the need for multiple models, which is inconvenient to use.
A nasal cavity expander comprising a deformable metal frame structure and silicone material was designed. By combining arc-shaped and straight deformable silicone parts, it can adapt to nostrils of different sizes, and the spacing of the nasal cavity expander structure can be adjusted by a bendable metal sheet structure.
The nasal expander can adapt to nostrils of different sizes, adjust the nasal cavity spacing, and is more convenient and adaptable to use.
Smart Images

Figure CN224461870U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to an auxiliary expander for preventing nasal scar contracture. Background Technology
[0002] After nasal burns, nasal scarring can cause contracture of the nostrils. Patients with this condition need to wear nasal expanders. Currently, there are external and internal nasal expanders. External expanders are adhered to the nasal wings and use tension to pull the sides of the nasal wings open the nostrils. However, for nasal scar contracture, the tension is insufficient to expand the nostrils. Therefore, for nasal scar contracture in nasal burn patients, internal nasal expanders are often used. Internal nasal expanders need to be inserted into the nostrils to expand them and prevent them from shrinking and deforming. For example, Chinese utility model patent CN212416638U discloses a nasal expander for burns, including a soft nasal plug, a nasal contact end, an air inlet end, an upper clip, a lower clip, a screw, a spring, a filter, an adjusting ring, a fixing ring, an adjusting rod, a pin, an adjusting buckle, and a tension cord. However, current nasal expanders have the following drawbacks:
[0003] Because patients' nostrils vary in size, current built-in nostril expanders cannot accommodate nostrils of different sizes, requiring multiple sizes to be used, which is quite inconvenient.
[0004] Therefore, we propose an auxiliary expander to prevent nasal scar contracture and address the aforementioned problems. Utility Model Content
[0005] The purpose of this invention is to provide an auxiliary expander to prevent nasal scar contracture, thereby solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary expander for preventing nasal cavity scar contracture, comprising a deformable metal frame structure, two nasal cavity expansion structures provided on both sides of the deformable metal frame structure, each nasal cavity expansion structure comprising a plate-shaped silicone sleeve, two arc-shaped deformable silicone parts fixedly connected to the top and bottom ends of the plate-shaped silicone sleeve, a straight deformable silicone part fixedly connected to the end of each arc-shaped deformable silicone part away from the plate-shaped silicone sleeve, a silicone support block fixedly connected to the end of the straight deformable silicone part near the deformable metal frame structure, and the plate-shaped silicone sleeve being disposed on the deformable metal frame structure.
[0007] Preferably, the deformable metal frame structure includes a V-shaped metal sheet, with two short metal sheets at both ends of the V-shaped metal sheet, and a long metal sheet at the end of the two short metal sheets away from the V-shaped metal sheet.
[0008] Preferably, a first bend is fixed between the V-shaped metal sheet and the short metal sheet, and a second bend is fixed between the short metal sheet and the long metal sheet. Two nasal septum skin protection structures are fitted on the two V-shaped metal sheets. The V-shaped metal sheet, the short metal sheet, the long metal sheet, the first bend, and the second bend are an integral structure.
[0009] Preferably, the plate-shaped silicone sleeve, the arc-shaped deformable silicone sleeve, the straight deformable silicone sleeve, and the silicone support block are an integral structure. An arc-shaped elastic metal sheet is fixedly embedded inside the arc-shaped deformable silicone sleeve, and a straight elastic metal sheet is fixedly embedded inside the straight deformable silicone sleeve and the silicone support block. A sleeve opening is opened on the side wall of the plate-shaped silicone sleeve, and the sleeve opening is fitted onto the long metal sheet. The long metal sheet and the sleeve opening are interference-fitted.
[0010] Preferably, the nasal septum skin protection structure includes a silicone pad, and two silicone pads on the two nasal septum skin protection structures are each fixedly connected to a U-shaped silicone strip on a side away from each other. The U-shaped silicone strip and the silicone pad are an integral structure. A strip-shaped opening is formed between the U-shaped silicone strip and the side wall of the silicone pad. The strip-shaped opening is fitted onto a short metal sheet, and the strip-shaped opening and the short metal sheet are interference-fitted.
[0011] Preferably, the silicone pad has multiple ventilation grooves on the side away from the short metal sheet, and multiple ventilation holes are horizontally formed on the silicone pad.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This utility model's nasal cavity expansion structure is made entirely of silicone, which is elastic. The two arc-shaped deformable silicone parts apply elastic force outward to expand the patient's nostrils. When inserting it into the nostril, the two arc-shaped deformable silicone parts are pinched to insert it. After entering the nostril, the two arc-shaped deformable silicone parts expand and fit the patient's nostrils, making it suitable for nostrils of different sizes and more convenient to use. The deformable metal frame structure of this utility model can be bent at various positions, which allows for adjustment of the distance between the two nasal cavity expansion structures to suit different nostril spacings. Attached Figure Description
[0014] Figure 1 These are schematic diagrams of the main structure in the first and second embodiments of this utility model;
[0015] Figure 2 These are schematic diagrams of the main exploded structure in the first and second embodiments of this utility model;
[0016] Figure 3 This is a cross-sectional view of the nasal cavity expansion structure in the second embodiment of the present invention;
[0017] Figure 4This is a schematic diagram of the nasal septum skin protection structure in the second embodiment of this utility model.
[0018] In the diagram: 1. Deformable metal frame structure; 2. Nasal cavity expansion structure; 3. Nasal septum skin protection structure; 11. V-shaped metal sheet; 12. Short metal sheet; 13. Long metal sheet; 14. First bend; 15. Second bend; 21. Plate-shaped silicone sleeve; 22. Arc-shaped deformable silicone sleeve; 23. Straight deformable silicone sleeve; 24. Silicone support block; 25. Arc-shaped elastic metal sheet; 26. Straight elastic metal sheet; 27. Sleeve opening; 31. Silicone dressing plate; 32. U-shaped silicone strip; 33. Strip-shaped opening; 34. Ventilation groove; 35. Ventilation port. Detailed Implementation
[0019] 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.
[0020] Example 1:
[0021] Please see Figure 1-2 This utility model provides a technical solution: an auxiliary expander for preventing nasal cavity scar contracture, comprising a deformable metal frame structure 1, with two nasal cavity expansion structures 2 arranged on both sides of the deformable metal frame structure 1. Each nasal cavity expansion structure 2 includes a plate-shaped silicone sleeve 21, with two arc-shaped deformable silicone parts 22 fixedly connected to the top and bottom ends of the plate-shaped silicone sleeve 21. Each arc-shaped deformable silicone part 22 has a straight deformable silicone part 23 fixedly connected to the end away from the plate-shaped silicone sleeve 21. The straight deformable silicone part 23 is close to the deformable... One end of the metal frame structure 1 is fixed to a silicone support block 24. The plate-shaped silicone sleeve 21 is set on the deformable metal frame structure 1. The nasal cavity expansion structure 2 is made entirely of silicone and is elastic. The two arc-shaped deformable silicone parts 22 will apply elastic force outward to expand the patient's nostrils. When inserting into the nostrils, the two arc-shaped deformable silicone parts 22 are pinched to insert into the nostrils. After entering the nostrils, the two arc-shaped deformable silicone parts 22 expand and fit into the patient's nostrils, which can be used for nostrils of different sizes, making it more convenient.
[0022] Example 2:
[0023] Please see Figure 1-4 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The deformable metal frame structure 1 includes a V-shaped metal sheet 11. Two short metal sheets 12 are provided at both ends of the V-shaped metal sheet 11. A long metal sheet 13 is provided at the end of the two short metal sheets 12 away from the V-shaped metal sheet 11.
[0024] The V-shaped metal sheet 11 and the short metal sheet 12 are fixedly connected by a first bending part 14, and the short metal sheet 12 and the long metal sheet 13 are fixedly connected by a second bending part 15. Two nasal septum skin protection structures 3 are fitted on the two V-shaped metal sheets 11. The V-shaped metal sheet 11, the short metal sheet 12, the long metal sheet 13, the first bending part 14, and the second bending part 15 are an integral structure. The V-shaped metal sheet 11 can be bent to adjust the spacing of the short metal sheet 12. The long metal sheet 13 between the short metal sheet 12 and the V-shaped metal sheet 11 can also be bent to adjust the angle of the short metal sheet 12. The short metal sheet 12 and the long metal sheet 13 can also be bent to adjust the angle of the long metal sheet 13 and the nasal cavity expansion structure 2 mounted on it. In this way, the spacing between the two nasal cavity expansion structures 2 can be adjusted to suit different nostril spacings.
[0025] The plate-shaped silicone sleeve 21, the arc-shaped deformable silicone sleeve 22, the straight deformable silicone sleeve 23, and the silicone support block 24 are integrated into one structure. The arc-shaped deformable silicone sleeve 22 is internally fixedly embedded with an arc-shaped elastic metal sheet 25. The straight deformable silicone sleeve 23 and the silicone support block 24 are internally fixedly embedded with a straight elastic metal sheet 26. The side wall of the plate-shaped silicone sleeve 21 has a sleeve opening 27, which is fitted onto the long metal sheet 13. The long metal sheet 13 and the sleeve opening 27 are interference-fitted. The arc-shaped elastic metal sheet 25 can ensure the outward expansion force of the arc-shaped deformable silicone sleeve 22. The silicone support block 24 is used to support the position of the nostril end.
[0026] The nasal septum skin protection structure 3 includes a silicone pad 31. Two silicone pads 31 on the two nasal septum skin protection structures 3 are fixedly connected to a U-shaped silicone strip 32 on one side away from each other. The U-shaped silicone strip 32 and the silicone pad 31 are an integral structure. A strip-shaped opening 33 is opened between the side wall of the U-shaped silicone strip 32 and the silicone pad 31. The strip-shaped opening 33 is sleeved on the short metal piece 12, and the strip-shaped opening 33 and the short metal piece 12 are interference fit.
[0027] Multiple ventilation grooves 34 are provided on the side of the silicone dressing plate 31 away from the short metal piece 12, and multiple ventilation holes 35 are provided horizontally on the silicone dressing plate 31. After adjusting the distance between the two nasal cavity expansion structures 2, the two nasal septum skin protection structures 3 can be slid so that the ends of the two silicone dressing plates 31 come into contact with the patient's nasal septum skin, and ventilation is achieved by using the ventilation grooves 34 and ventilation holes 35.
[0028] Example 3:
[0029] Please see Figure 1-4This is the third embodiment of the present invention, based on the above two embodiments. In use, according to the distance between the patient's nostrils, the bendable positions of the deformable metal frame structure 1 are adjusted to determine the distance between the two nasal cavity expansion structures 2. Then, the two nasal septum skin protection structures 3 are slid until the ends of the two silicone pads 31 contact. Next, the arc-shaped deformable silicone parts 22 on the two nasal cavity expansion structures 2 are pinched and inserted into the patient's nostrils. The arc-shaped deformable silicone parts 22 then expand and conform to the patient's nostrils, achieving expansion. The nasal cavity expansion structure 2 is made entirely of silicone and is elastic. The two arc-shaped deformable silicone parts 22 apply elastic force outward to expand the patient's nostrils. When inserting it into the nostril, the two arc-shaped deformable silicone parts 22 are pinched to insert it into the nostril. After entering the nostril, the two arc-shaped deformable silicone parts 22 expand and fit the patient's nostril, which can be used for nostrils of different sizes, making it more convenient. The deformable metal frame structure 1 of this utility model can be bent at various positions, which can adjust the distance between the two nasal cavity expansion structures 2 to suit different nostril spacings.
[0030] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial improvements made to this utility model using this concept should be considered as infringing on the protection scope of this utility model.
Claims
1. An auxiliary expander for preventing nasal scar contracture, comprising a deformable metal frame structure (1), characterized in that: The deformable metal frame structure (1) has two nasal cavity expansion structures (2) on both sides. The nasal cavity expansion structure (2) includes a plate-shaped silicone sleeve (21). The top and bottom ends of the plate-shaped silicone sleeve (21) are fixed with two arc-shaped deformable silicone parts (22). Each arc-shaped deformable silicone part (22) is fixed with a straight deformable silicone part (23) at the end away from the plate-shaped silicone sleeve (21). The straight deformable silicone part (23) is fixed with a silicone support block (24) at the end close to the deformable metal frame structure (1). The plate-shaped silicone sleeve (21) is set on the deformable metal frame structure (1).
2. The auxiliary expander for preventing nasal scar contracture according to claim 1, characterized in that: The deformable metal frame structure (1) includes a V-shaped metal sheet (11), with two short metal sheets (12) at both ends of the V-shaped metal sheet (11), and a long metal sheet (13) at the end of the two short metal sheets (12) away from the V-shaped metal sheet (11).
3. The auxiliary expander for preventing nasal scar contracture according to claim 2, characterized in that: The first bend (14) is fixed between the V-shaped metal sheet (11) and the short metal sheet (12), and the second bend (15) is fixed between the short metal sheet (12) and the long metal sheet (13). Two nasal septum skin protection structures (3) are fitted on the two V-shaped metal sheets (11). The V-shaped metal sheet (11), the short metal sheet (12), the long metal sheet (13), the first bend (14), and the second bend (15) are an integral structure.
4. The auxiliary expander for preventing nasal scar contracture according to claim 2, characterized in that: The plate-shaped silicone sleeve (21), the arc-shaped deformable silicone sleeve (22), the straight deformable silicone sleeve (23), and the silicone support block (24) are an integral structure. The arc-shaped deformable silicone sleeve (22) has an arc-shaped elastic metal sheet (25) fixedly embedded inside. The straight deformable silicone sleeve (23) and the silicone support block (24) have straight elastic metal sheets (26) fixedly embedded inside. The plate-shaped silicone sleeve (21) has a sleeve opening (27) on its side wall. The sleeve opening (27) is fitted onto the long metal sheet (13). The long metal sheet (13) and the sleeve opening (27) are interference fit.
5. The auxiliary expander for preventing nasal scar contracture according to claim 3, characterized in that: The nasal septum skin protection structure (3) includes a silicone pad (31). Two silicone pads (31) on the two nasal septum skin protection structures (3) are fixed with U-shaped silicone strips (32) on one side away from each other. The U-shaped silicone strips (32) and the silicone pads (31) are an integral structure. A strip-shaped opening (33) is opened between the side wall of the U-shaped silicone strips (32) and the silicone pads (31). The strip-shaped opening (33) is fitted onto a short metal piece (12). The strip-shaped opening (33) and the short metal piece (12) are interference fit.
6. The auxiliary expander for preventing nasal scar contracture according to claim 5, characterized in that: The silicone pad (31) has multiple ventilation grooves (34) on the side away from the short metal sheet (12), and multiple ventilation holes (35) are horizontally opened on the silicone pad (31).