Nasal catheter fixing device capable of preventing pressure sores
By designing a limiter and wearing device for the fixation device, the problems of unstable fixation of the nasal cannula and compression of the nasal cavity are solved, achieving the effect of preventing nasal sores and nasal cavity damage, and providing a comfortable and stable way to fix the nasal cannula.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAINING TRADITIONAL CHINESE MEDICINE HOSPITAL
- Filing Date
- 2025-02-05
- Publication Date
- 2026-05-15
AI Technical Summary
Existing methods of fixing nasal cannulas can easily cause nasal cavity rupture and nasal sores, especially for patients with nasal sores, as the fixation is not secure and the cannulas are prone to falling off.
A fixing device is used instead of the T-shaped adhesive strip, including a limiter, a bracket, and a wearing device. The position of the nasal cannula is adjusted by the limiter, the bracket increases the structural strength, and the wearing device is fixed on the ear to prevent the nasal cannula from being directly pasted on the nose. Soft pads are used to increase friction and prevent slippage.
It effectively prevents the nasal cannula from compressing the nasal cavity, avoiding nasal sores and nasal cavity damage. It is securely fixed, comfortable to wear, and not easy to fall off.
Smart Images

Figure CN224235871U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical technology, and in particular to a nasal cannula fixation device for preventing pressure sores. Background Technology
[0002] The purpose of nasal cannula oxygen therapy is to prevent hypoxia. When a patient's respiratory function is impaired and the body's ventilation and oxygen supply cannot be met, a nasal cannula is inserted into the patient's nasal cavity to keep the airway open and provide oxygen to the patient. It is an important measure to rescue patients with respiratory dysfunction.
[0003] However, because the nasal mucosa is relatively thin, in the current technology, when using a nasal cannula, it is necessary to cut out a T-shaped piece of medical tape and stick the cannula to the nose when inserting it into the nose. Wearing it in this way will cause the cannula to exert a squeezing force on the nasal cavity, which can easily cause nasal cavity rupture.
[0004] For patients with nasal sores, the above fixation method can easily cause the tube to press on the sores. In addition, with nasal sores, the T-shaped tape cannot effectively fit the nose and is prone to falling off during use. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a nasal cannula fixation device to prevent pressure sores. This nasal cannula fixation device replaces the existing T-shaped adhesive tape and effectively solves the problems of nasal cannula pressure sores and pressure on the nasal cavity.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A pressure ulcer prevention nasal cannula fixation device includes: a fixation device, wearing devices installed on both sides of the fixation device, and a nasal cannula fixed to the wearing devices and the fixation device.
[0008] Preferably, the fixing device includes a limiter, brackets installed at both ends of the limiter, and a connector connecting the two brackets.
[0009] Preferably, the limiter includes a first soft pad, a limiting member for mounting the first soft pad, a movable hole formed on the limiting member, a pair of movable limiting cylinders disposed in the movable hole, sliders disposed at both ends of each movable limiting cylinder, and a locking nut mounted on one of the sliders; the limiting member has grooves formed at both ends; the two sliders are respectively embedded in the two grooves and are slidably connected with the grooves; the nasal cannula is connected to the limiter by inserting into the movable limiting cylinder.
[0010] Preferably, the bracket includes a vertical rod, an L-shaped rod connected to the vertical rod, and a second soft pad mounted on the L-shaped rod; the bracket is mounted on the limiting member via the vertical rod.
[0011] Preferably, the wearing device includes a connecting tube, a connecting plate for mounting the connecting tube, a wearing cord mounted on the connecting plate, and connecting holes at both ends of the wearing cord; the connecting hole at one end of the wearing cord is fitted onto a vertical rod, and the connecting hole at the other end is fitted onto a connector; the wearing device is worn on the ear via the wearing cord.
[0012] Compared with the prior art, this application has the following beneficial effects:
[0013] This invention uses a fixing device instead of the existing adhesive strip, thus avoiding the nasal cannula being stuck to the nose and preventing the nasal cannula from compressing nasal sores. At the same time, the nasal cannula is fixed to the fixing device, and the limiting device on the fixing device can adjust the nasal cannula inserted into the nasal cavity and fix it in a suitable position, preventing the nasal cannula from compressing the nasal cavity and causing damage. This fixing device can not only be easily worn on both sides of the ears through the wearing device, but also the fixing device and the wearing device can work together to fix the nasal cannula, preventing the nasal cannula from compressing nasal sores and the nasal cavity. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.
[0015] Figure 1 This is a schematic diagram of the structure of the nasal cannula fixation device for preventing pressure sores according to the present invention;
[0016] Figure 2 for Figure 1 A schematic diagram of the structure of the fixing device in the middle;
[0017] Figure 3 for Figure 2 A schematic diagram of the left-side view structure;
[0018] Figure 4 for Figure 2 Schematic diagram of the middle connector;
[0019] Figure 5 for Figure 2 Schematic diagram of the middle limit switch;
[0020] Figure 6 for Figure 2 Schematic diagram of the mid-support structure;
[0021] Figure 7 for Figure 1 A schematic diagram of the wearable device. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0024] Unless otherwise defined, the technical or scientific terms used in this patent document shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model patent specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" indicate that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or its equivalents, and do not exclude other elements or objects. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0025] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.
[0026] Example 1:
[0027] like Figure 1 As shown, a nasal cannula fixation device for preventing pressure sores includes: a fixation device 10, wearing devices 20 installed on both sides of the fixation device 10, and a nasal cannula 30 fixed on the wearing devices 20 and the fixation device 10.
[0028] After the nasal cannula 30 is installed on the wearing device 20 and the fixing device 10, the nasal cannula 30 is first inserted into the nostril that needs oxygen supply. Then, the fixing device 10 is placed in a suitable position. It should be noted that the fixing device 10 should not touch the nose during placement. Then, the wearing device 20 is worn on both sides of the ears. Finally, the fixing device 10 is used to make a slight adjustment to the nasal cannula 30 so that the nasal cannula 30 does not compress the nasal cavity.
[0029] like Figures 2 to 4 As shown, the fixing device 10 includes a limiter 11, brackets 12 installed at both ends of the limiter 11, and a connector 13 (e.g., connecting the two brackets 12) that connects the two brackets 12. Figure 2 and Figure 3 ).
[0030] The nasal cannula 30 is mounted on the limiter 11.
[0031] To avoid the fixing device 10 compressing the nasal sores, when placing it, the limiter 11 is placed at the front end of the nostril, and the two brackets 12 are respectively set on both sides of the nose and connected by the connector 13.
[0032] The use of the connector 13 to connect the two brackets 12 increases the structural strength of the fixing device 10 and prevents the brackets 12 from being damaged during use. Simultaneously, the connector 13 is arc-shaped (e.g., Figure 4 This structure is designed to prevent the connector 13 from pressing on the nose after the fixing device 10 is placed.
[0033] like Figure 5 As shown, the limiter 11 includes a first soft pad 111, a limiting member 112 for mounting the first soft pad 111, a movable hole 113 opened on the limiting member 112, a pair of movable limiting cylinders 114 disposed in the movable hole 113, sliders 115 disposed at both ends of each movable limiting cylinder 114, and a locking nut 116 installed on one of the sliders 115; the limiting member 112 has grooves 117 opened at both ends; the two sliders 115 are respectively embedded in the two grooves 117 and are slidably connected with the grooves 117; the nasal cannula 30 is connected to the limiter 11 by inserting into the movable limiting cylinder 114.
[0034] The limiter 11 is placed on the upper lip in front of the nostrils via a first soft pad 111 installed under the limiter 112. The first soft pad 111 is made of a porous and soft material, which helps to increase the friction between the limiter 11 and the upper lip, preventing the limiter 11 from sliding during use. At the same time, the softness of the first soft pad 111 prevents the limiter 11 from pressing on the upper lip and causing damage to the upper lip.
[0035] The nasal cannula 30 is connected to the limiter 11 via an insertable movable limiting cylinder 114. When the nasal cannula 30 is inserted into the nostril, it moves through the movable hole 113 via the movable limiting cylinder 114 to adjust the position of the nasal cannula 30 in the nostril. When the nasal cannula 30 is adjusted to not compress the nasal cavity, the locking nut 116 is screwed downward into the movable limiting cylinder 114. When it contacts the nasal cannula 30, it compresses and fixes the nasal cannula 30. After the locking nut 116 contacts the limiting member 112, it limits the movable limiting cylinder 11. Through the dual functions of fixing and limiting of the locking nut 116, the nasal cannula 30 is prevented from compressing the nasal cavity.
[0036] like Figure 6 As shown, the bracket 12 includes a vertical rod 121, an L-shaped rod 122 connected to the vertical rod 121, and a second soft pad 123 installed on the L-shaped rod 122; the bracket 12 is installed on the limiting member 112 via the vertical rod 121.
[0037] The bracket 12 contacts the cheek via a second soft pad 123 mounted on an L-shaped rod 122. The second soft pad 123 is made of a porous and soft material, which not only helps to increase friction with the cheek and prevent slippage during wear, but also helps to prevent the L-shaped rod 122 from pressing on the cheek and causing damage.
[0038] like Figure 7 As shown, the wearing device 20 includes a connecting tube 21, a connecting plate 22 for mounting the connecting tube 21, a wearing cord 23 mounted on the connecting plate 22, and connecting holes 24 at both ends of the wearing cord 23; the connecting hole 24 at one end of the wearing cord 23 is sleeved on the vertical rod 121, and the connecting hole 24 at the other end is sleeved on the connector 13; the wearing device 20 is worn on the ear via the wearing cord 23.
[0039] The nasal cannula 30 is first inserted into the connecting tube 21, and then into the movable limiting tube 114.
[0040] The wearing device 20 has a pair on the left and right, that is, the connecting tube 21 also has a pair on the left and right, which is used to fix the nasal cannula 30 on both sides of the cheek.
[0041] The nasal cannula 30 is restricted by the connecting tube 21, which prevents it from being misplaced or uncomfortable during use, and helps to standardize the use of the nasal cannula 30.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A nasal cannula fixation device for preventing pressure sores, characterized in that, include: Fixing device (10), wearing device (20) installed on both sides of fixing device (10), and nasal cannula (30) fixed on wearing device (20) and fixing device (10). The fixing device (10) includes a limiter (11), brackets (12) installed at both ends of the limiter (11), and a connector (13) connecting the two brackets (12). The limiter (11) includes a first soft pad (111), a limiting member (112) for mounting the first soft pad (111), a moving hole (113) opened on the limiting member (112), a pair of moving limiting cylinders (114) disposed in the moving hole (113), a slider (115) disposed at both ends of each moving limiting cylinder (114), and a locking nut (116) installed on one of the sliders (115); the limiting member (112) has grooves (117) opened at both ends; the two sliders (115) are respectively embedded in the two grooves (117) and are slidably connected with the grooves (117); the nasal cannula (30) is connected to the limiter (11) by inserting the moving limiting cylinder (114).
2. The nasal cannula fixation device for preventing pressure sores according to claim 1, characterized in that, The bracket (12) includes a vertical rod (121), an L-shaped rod (122) connected to the vertical rod (121), and a second soft pad (123) installed on the L-shaped rod (122); the bracket (12) is installed on the limiting member (112) via the vertical rod (121).
3. A nasal cannula fixation device for preventing pressure sores according to claim 2, characterized in that, The wearing device (20) includes a connecting tube (21), a connecting plate (22) for mounting the connecting tube (21), a wearing cord (23) mounted on the connecting plate (22), and connecting holes (24) at both ends of the wearing cord (23); the connecting hole (24) at one end of the wearing cord (23) is fitted onto the vertical rod (121), and the connecting hole (24) at the other end is fitted onto the connector (13); the wearing device (20) is worn on the ear via the wearing cord (23).