Catheter limiting device for pediatric clinical treatment

By designing a catheter limiting device, which uses sliding guide wheels and a cam system to limit the speed of catheter movement, and combines a limiting frame and elastic band to prevent catheter deviation, the problem of unstable catheter fixation in pediatric patients is solved, thus improving treatment comfort and safety.

CN223490236UActive Publication Date: 2025-10-31JILIN UNIVERSITY
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Patent Information

Application Number
CN202422520152.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-18
Publication Date
2025-10-31
Estimated Expiration
2034-10-18

AI Technical Summary

Technical Problem

Existing methods of fixing nasogastric or nasoenteric tubes have limited effectiveness in pediatric patients, leading to increased extubation rates and problems such as reflux, aspiration, choking, and aspiration pneumonia. Furthermore, children's active nature makes them prone to skin injuries.

Method used

A conduit limiting device was designed, comprising components such as a soft mounting plate, elastic band, rubber guide ring, sliding guide wheel, cam, and alarm. The device limits the conduit's movement speed through the sliding guide wheel and cam system, and prevents conduit deviation by combining a limiting frame and elastic band, thereby improving comfort and safety.

Benefits of technology

It effectively prevents catheter deviation and excessively rapid movement, reduces skin damage, improves treatment comfort and safety for pediatric patients, and lowers the risk of extubation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of tumor surgery, in particular to a pediatric clinical treatment catheter limiting device. The utility model provides a pediatric clinical treatment catheter limiting device capable of improving the comfort level of a patient. The pediatric clinical treatment catheter limiting device comprises a soft mounting plate, an elastic band, a silica gel strip, a first sliding block, a rubber guide ring, a fixing frame, a rotating shaft, a first sliding guide wheel, a second sliding block, a second sliding guide wheel and the like. An elastic band is connected to the soft body mounting plate, a first sliding block is slidably connected to the soft body mounting plate, a rubber guide ring is fixedly connected to the first sliding block, two fixing frames are connected to the bottom of the soft body mounting plate, and a rotating shaft is rotatably connected between the two fixing frames. The guide tube is limited through the first sliding guide wheel and the second sliding guide wheel, the guide tube is prevented from deviating, medical staff can be reminded that the guide tube moves too fast through the cam, the contact rod, the alarm and other components, the skin and organs of a child are prevented from being damaged when the guide tube is inserted into the child, and the comfort of a patient is improved.
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Description

Technical Field

[0001] This utility model relates to the field of tumor surgery technology, and in particular to a catheter limiting device for pediatric clinical treatment. Background Technology

[0002] Unplanned extubation of nasogastric or nasoenteric tubes is common in clinical practice. Preventive measures mainly focus on improvements in various aspects, including tube fixation methods, communication techniques, pediatric patient comfort, specialist training, limb restraint, and human resource allocation. Clinically, adhesive tape is often used for fixation. However, the nasal ala is an area with high levels of sebum secretion, limiting its effectiveness. Long-term use of adhesive tape can lead to loss of stickiness, increasing the likelihood of extubation in children. This can result in reflux, aspiration, choking, and aspiration pneumonia, significantly increasing the suffering of pediatric patients and worsening their condition.

[0003] Patent publication number CN218944112U, published on 2023-05-02, discloses a catheter fixation device for pediatric oncology surgery. The device includes a base plate, an electric push rod fixedly mounted on the top of the base plate, a platform fixedly mounted on the output shaft of the electric push rod, and a fixing assembly on the top of the platform. The fixing assembly includes a fixing seat, a mounting block fixedly mounted on the outer side of the fixing seat, a spring fixedly connected to the end of the mounting block away from the fixing seat, a movable frame fixedly connected to the end of the spring away from the fixing seat, a hinge seat fixedly mounted outside the fixing seat on the outer side of the movable frame, an arc-shaped plate fixedly connected to the outer side of the movable frame, and a rubber layer fixedly mounted on the inner side of the arc-shaped plate. However, existing fixation devices often overlook the special characteristics of pediatric patients. Children are active and energetic, but their skin and organs are delicate, and inserting a catheter can easily cause skin damage. If the gastric tube is manually inserted and moved too quickly, it can cause discomfort and risks to the patient.

[0004] Based on the above, this utility model proposes a pediatric clinical treatment catheter limiting device that can improve patient comfort. Utility Model Content

[0005] To overcome the shortcomings of existing pediatric clinical treatment catheter limiting devices that improve patient comfort, such as the delicate skin and organs of pediatric patients and the excessively rapid movement of manually inserted gastric tubes, which cause discomfort and risks to patients, this utility model provides a pediatric clinical treatment catheter limiting device.

[0006] The technical solution is as follows: A pediatric clinical treatment catheter limiting device includes a soft mounting plate, an elastic band, a first slider, a rubber guide ring, a fixing frame, a rotating shaft, a first sliding guide wheel, a second slider, a second sliding guide wheel, a spring, a cam, an alarm, and a contact rod. An elastic band is connected to the soft mounting plate. The first slider is slidably connected to the soft mounting plate, and a rubber guide ring is fixedly connected to the first slider. Two fixing frames are connected to the bottom of the soft mounting plate. A rotating shaft is rotatably connected between the two fixing frames. A first sliding guide wheel is slidably connected to the rotating shaft. A second slider is slidably connected to the fixing frames. A rotating shaft is also rotatably connected between the two second sliders, and a second sliding guide wheel is slidably connected to the rotating shaft. A spring connects the fixing frames and the second slider. A cam is fixedly connected to the rotating shaft on the rear side. An alarm is connected to one fixing frame, and a contact rod is slidably connected to the alarm. The cam and the contact rod engage in contact.

[0007] Preferably, it also includes a silicone strip, with the elastic band having a silicone strip attached.

[0008] Preferably, the device also includes a limiting frame, a sliding block, a limiting bracket, a sliding rod, a connecting rod, a rotating block, a limiting ring, a friction block, and an elastic element. The flexible mounting plate is connected to the limiting frame, the limiting frame is slidably connected to the sliding block, the sliding block is rotatably connected to the limiting bracket, the limiting bracket is slidably connected to the sliding rod, the sliding rod is symmetrically connected to the connecting rod, the connecting rod is rotatably connected to the rotating block, the two rotating blocks are rotatably connected to the limiting ring, the rotating block is slidably connected to the friction block, and the rotating block and the friction block are connected to an elastic element.

[0009] Preferably, it also includes elastic bands and limiting sleeves, with multiple elastic bands connected to the silicone strip, and limiting sleeves between the upper parts of the multiple elastic bands.

[0010] Preferably, the connecting rod is S-shaped for easy gripping.

[0011] As a preferred option, the elastic band is made of a nylon blend, which is beneficial for its function of being placed over a child's head.

[0012] The beneficial effects of this utility model are as follows: This utility model uses the first sliding guide wheel and the second sliding guide wheel to limit the catheter and prevent the catheter from deviating. Through components such as the cam, contact rod and alarm, it can remind medical staff that the catheter is moving too fast, avoid damage to children's skin and organs when inserting catheters into children, and improve patient comfort.

[0013] This invention allows for adjustment of the catheter angle via a rotating block and a limiting ring, and prevents the catheter from moving too quickly by moving a sliding rod, thereby preventing the catheter from being inserted or removed too quickly and improving treatment comfort.

[0014] This invention, through components such as elastic bands and limiting sleeves, can prevent the displacement of the treatment catheter caused by the displacement of the silicone strip, thus improving the practicality of a pediatric clinical treatment catheter limiting device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a cross-sectional perspective view of the soft mounting plate, the first slider, and the rubber guide ring of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the components of this utility model, including the fixing frame, rotating shaft, and first sliding guide wheel.

[0018] Figure 4 This is a three-dimensional structural diagram of the cam, contact rod, and alarm components of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the limiting frame, sliding block, and limiting bracket of this utility model.

[0020] Figure 6 This is a three-dimensional structural diagram of the rotating block, friction block, and elastic element of this utility model.

[0021] Figure 7 This is a three-dimensional structural diagram of the soft mounting plate, elastic band, and limiting sleeve of this utility model.

[0022] Reference numerals: 1_Soft mounting plate, 2_Elastic band, 3_Silicone strip, 4_First slider, 5_Rubber guide ring, 6_Fixed bracket, 7_Rotating shaft, 8_First sliding guide wheel, 9_Second slider, 91_Second sliding guide wheel, 10_Spring, 11_Cam, 12_Contact rod, 13_Alarm, 14_Limit frame, 141_Sliding block, 15_Limit bracket, 16_Sliding rod, 161_Connecting rod, 17_Rotating block, 171_Limit ring, 18_Friction block, 181_Elastic element, 19_Elastic band, 20_Limit sleeve. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Example 1: A pediatric clinical treatment catheter limiting device, such as... Figures 1-4As shown, it includes a flexible mounting plate 1, an elastic band 2, a first slider 4, a rubber guide ring 5, a fixing frame 6, a rotating shaft 7, a first sliding guide wheel 8, a second slider 9, a second sliding guide wheel 91, a spring 10, a cam 11, an alarm 12, and a contact rod 13. The elastic band 2 is fixedly connected to the flexible mounting plate 1. The first slider 4 is slidably connected to the bottom of the flexible mounting plate 1. A rubber guide ring 5 is fixedly connected to the middle of the first slider 4. Fixing frames 6 are symmetrically connected to the bottom of the flexible mounting plate 1. A rotating shaft 7 is rotatably connected between the fixed frames 6. A first sliding guide wheel 8 is slidably connected to the rotating shaft 7. A second slider 9 is slidably connected to the fixed frame 6. A rotating shaft 7 is also rotatably connected between the two second sliders 9. A second sliding guide wheel 91 is slidably connected to the rotating shaft 7. A spring 10 is connected between the fixed frame 6 and the second slider 9. A cam 11 is fixed to the left side of the rotating shaft 7 on the rear side. An alarm 12 is connected to the left side of the fixed frame 6. A contact rod 13 is slidably connected to the lower part of the alarm 12.

[0025] like Figure 1 As shown, it also includes a silicone strip 3, which is fixedly connected to the elastic band 2. The silicone strip 3 facilitates the fixing of the elastic band 2 and the soft mounting plate 1 to a suitable position on the child's nose.

[0026] In pediatric clinical treatment, catheters are often used for nutritional infusion or medication administration. Because children's skin and organs are delicate, rapid manual insertion of the feeding tube can cause discomfort and risks. First, the elastic band 2 is stretched and placed over the child's head according to their head size. Then, the elastic band 2 is loosened, allowing the soft mounting plate 1 to be positioned appropriately on the child's nose. Next, medical staff move the first slider 4 on the soft mounting plate 1 to the appropriate position according to the nostril into which the catheter will be inserted. The first slider 4 moves the rubber guide ring 5, and then the medical staff inserts the catheter between the first sliding guide wheel 8 and the second sliding guide wheel 91. The slider 9 moves away from the first sliding guide wheel 8, the spring 10 is stretched, and the catheter passes through the rubber guide ring 5 and is then inserted into the child's nostril. Due to the friction of the catheter, the first sliding guide wheel 8 and the second sliding guide wheel 91 rotate. At this time, the two rotating shafts 7 also rotate. The rear rotating shaft 7 drives the cam 11 to rotate, and at the same time, it intermittently squeezes the contact rod 13 to move forward. When the catheter is inserted too quickly, the alarm 12 detects that the contact rod 13 is moving too fast and sounds. People can then adjust the insertion speed of the catheter accordingly. After insertion, medical staff use the catheter to administer nutrition or medication to the child. After the child's treatment is completed, the medical staff pulls the catheter outward. Due to the friction of the catheter, the first sliding guide wheel 8 and the second sliding guide wheel 91 rotate in opposite directions. At the same time, the two rotating shafts 7 also rotate in opposite directions. The rear rotating shaft 7 drives the cam 11 to rotate, and at the same time, it intermittently squeezes the contact rod 13 to move forward. When the catheter is pulled out too quickly, the alarm 12 can also detect that the contact rod 13 is moving too fast and will sound immediately. People can then adjust the speed of the catheter removal accordingly. After the catheter is removed, the spring 10 returns to its original position. This allows the catheter insertion position to be adjusted according to the child's nostril and prevents the child from being injured by the manual insertion of the catheter too quickly.

[0027] Example 2, based on Example 1, such as Figure 5 and Figure 6 As shown, it also includes a limiting frame 14, a sliding block 141, a limiting bracket 15, a sliding rod 16, a connecting rod 161, a rotating block 17, a limiting ring 171, a friction block 18, and an elastic element 181. The bottom front side of the soft mounting plate 1 is connected to the limiting frame 14. The middle of the limiting frame 14 is slidably connected to the sliding block 141. The front of the sliding block 141 is rotatably connected to the limiting bracket 15. The limiting bracket 15 is slidably connected to the sliding rod 16. The sliding rod 16 is symmetrically connected to the left and right sides of the sliding rod 16. The connecting rod 161 is S-shaped for easy gripping. The rear of the connecting rod 161 is rotatably connected to the rotating block 17. The two rotating blocks 17 are rotatably connected to the limiting ring 171. The rotating block 17 is slidably connected to the friction block 18. The rotating block 17 and the friction block 18 are connected to the elastic element 181.

[0028] If the insertion and removal of the catheter into and from the child's stomach is too rapid, it can cause discomfort and risks to the patient, affecting the comfort of the treatment. First, medical staff push the sliding block 141 to move, causing the limiting frame 15 to move, allowing all its components to move to the catheter insertion position. Then, when inserting the catheter, the medical staff first inserts it between the two friction blocks 18, causing them to squeeze the friction blocks 18 outwards, while the elastic element 181 is compressed. Then, when inserting the catheter, the position of the sliding rod 16 is adjusted upwards, thereby causing the connecting rod 161 to move upwards, through the rotating block 17 and the limiting... Positioning ring 171 can adjust the angle of the catheter, thereby preventing the catheter from being inserted too quickly. When the catheter needs to be removed after treatment, medical staff can adjust the position of sliding rod 16 downwards. The angle of the catheter can be adjusted by rotating block 17 and limiting ring 171, thereby preventing the catheter from being removed too quickly. This prevents the catheter from being inserted or removed too quickly. Furthermore, the friction block 18 can also provide a certain degree of protection for the catheter after it has been inserted into the human body. When the catheter located outside the body is accidentally pulled, the friction block 18 can prevent the catheter from being pulled out of the body, improving the comfort of treatment.

[0029] like Figure 7 As shown, it also includes elastic bands 19 and limiting sleeves 20. Three elastic bands 19 are connected to the silicone strip 3. The elastic bands 19 are made of nylon blend, which is conducive to the function of being put on the child's head. The limiting sleeves 20 are between the upper parts of the three elastic bands 19.

[0030] When children undergo treatment, the position of the silicone strip 3 may shift due to sleeping posture or slight movement. At this time, the three elastic bands 19 are stretched manually. Then, when the limiting sleeve 20 is fixed to the child's head, the elastic bands 19 and the limiting sleeve 20 are engaged, thereby preventing the catheter from shifting.

[0031] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A pediatric clinical treatment catheter limiting device, characterized in that, The system includes a flexible mounting plate (1), an elastic band (2), a first slider (4), a rubber guide ring (5), a fixing bracket (6), a rotating shaft (7), a first sliding guide wheel (8), a second slider (9), a second sliding guide wheel (91), a spring (10), a cam (11), an alarm (12), and a contact rod (13). The flexible mounting plate (1) is connected to the elastic band (2). The first slider (4) is slidably connected to the flexible mounting plate (1). The first slider (4) is fixedly connected to the rubber guide ring (5). The bottom of the flexible mounting plate (1) is connected to two fixing brackets (6). The two fixing brackets (6) are rotatably connected. A rotating shaft (7) is connected to the rotating shaft (7), and a first sliding guide wheel (8) is slidably connected to the rotating shaft (7). A second slider (9) is slidably connected to the fixed frame (6). The two second sliders (9) are also rotatably connected to the rotating shaft (7). A second sliding guide wheel (91) is slidably connected to the rotating shaft (7). A spring (10) is connected between the fixed frame (6) and the second slider (9). A cam (11) is fixed to the rotating shaft (7) on the rear side. An alarm (12) is connected to the fixed frame (6) on one side. A contact rod (13) is slidably connected to the alarm (12). The cam (11) and the contact rod (13) are in contact with each other.

2. The pediatric clinical treatment catheter limiting device according to claim 1, characterized in that, It also includes a silicone strip (3), and the elastic band (2) is connected to the silicone strip (3).

3. A pediatric clinical treatment catheter limiting device according to claim 2, characterized in that, It also includes a limiting frame (14), a sliding block (141), a limiting bracket (15), a sliding rod (16), a connecting rod (161), a rotating block (17), a limiting ring (171), a friction block (18), and an elastic element (181). The soft mounting plate (1) is connected to the limiting frame (14). The limiting frame (14) is slidably connected to the sliding block (141). The sliding block (141) is rotatably connected to the limiting bracket (15). The limiting bracket (15) is slidably connected to the sliding rod (16). The sliding rod (16) is symmetrically connected to the connecting rod (161). The connecting rod (161) is rotatably connected to the rotating block (17). The two rotating blocks (17) are rotatably connected to the limiting ring (171). The rotating block (17) is slidably connected to the friction block (18). The rotating block (17) and the friction block (18) are connected to the elastic element (181).

4. A pediatric clinical treatment catheter limiting device according to claim 3, characterized in that, It also includes elastic bands (19) and limiting sleeves (20), with multiple elastic bands (19) connected to the silicone strip (3), and limiting sleeves (20) between the upper parts of the multiple elastic bands (19).

5. A pediatric clinical treatment catheter limiting device according to claim 4, characterized in that, The connecting rod (161) is S-shaped for easy gripping.

6. A pediatric clinical treatment catheter limiting device according to claim 5, characterized in that, The elastic band (19) is made of nylon blend, which is convenient for wearing over a child's head.