Catheter heating assembly

By using the heat conductor and electric heating element of the catheter heating assembly in close coordination, the problem of gastrointestinal irritation caused by low-temperature nutrient solution in nasogastric feeding catheters is solved, achieving precise heating and improving patient comfort and treatment effectiveness.

CN223740970UActive Publication Date: 2025-12-30THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV
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Patent Information

Application Number
CN202520153573.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2025-12-30
Estimated Expiration
2035-01-22

AI Technical Summary

Technical Problem

Existing nasogastric feeding catheters can easily irritate the patient's gastrointestinal tract during the infusion of low-temperature nutrient solutions, leading to discomfort and impaired digestion and absorption. Furthermore, there is a lack of efficient heating devices.

Method used

A catheter heating assembly is designed, comprising a heat conductor and an electric heating element. Through the close cooperation between the heat conductor and the electric heating element, precise heating of the nasogastric feeding catheter and nutrient solution is achieved. It is equipped with a convenient control switch and indicator light to ensure that the nutrient solution temperature is suitable.

Benefits of technology

It improves heating efficiency, reduces the irritation of low-temperature nutrient solutions to the gastrointestinal tract, enhances patient comfort and treatment effectiveness, and is convenient and safe to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of medical instrument auxiliary equipment, and particularly relates to a catheter heating assembly which is composed of a cylindrical heat conductor with a spiral containing groove in the circumferential face and a built-in electric heating body, and the electric heating body can heat the heat conductor after being powered on and is used for heating a wound nasal feeding nutrition catheter and nutrient solution. One end of the heat conductor is fixedly connected with a columnar handle conforming to ergonomics design, the handle is provided with a control switch and an indicator light, a bearing slope is arranged between the side face and the heat conductor, and one end, close to the handle, of the heat conductor is provided with a limiting annular plate with a notch. The assembly has the characteristic of accurate and efficient heating, can ensure that the temperature of a nutrient solution is appropriate, and reduces stimulation to gastrointestinal tracts of patients; operation is convenient and safe, and all parts are reasonably arranged; and the application prospect in the medical field is wide, powerful support can be provided for nasal feeding nutrition treatment no matter in hospital clinical nursing or home nursing, and the treatment experience of a patient is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of medical device auxiliary equipment technology, specifically relating to a catheter heating assembly. Background Technology

[0002] In medical and nursing practice, nasogastric feeding catheters are a commonly used medical device that provides essential nutritional support for patients who are unable to eat orally for various reasons. These patients include, but are not limited to, those who cannot swallow normally due to oral or pharyngeal diseases, as well as those who are comatose or have swallowing dysfunction due to neurological damage. Through nasogastric feeding catheters, nutritional solutions can be directly delivered to the patient's gastrointestinal tract to maintain the patient's nutritional needs and bodily functions.

[0003] However, in practice, the infusion of cryogenic nutritional solutions has consistently troubled healthcare workers and patients. Especially in cold environments, or when poor storage conditions result in low temperatures, the low temperature can irritate the patient's gastrointestinal tract during delivery via a nasogastric tube. The gastrointestinal tract is a vital organ for digestion and absorption and is highly sensitive to temperature changes. Low-temperature stimulation can trigger a series of adverse reactions, such as gastrointestinal spasms, abdominal pain, and discomfort, severely impacting patient comfort and treatment effectiveness. Long-term infusion of cryogenic nutritional solutions may also impair normal digestive and absorptive functions, hindering patient recovery.

[0004] Currently, there are relatively few devices on the market specifically designed for heating nasogastric feeding catheters. Traditional heating methods typically involve using hot water bottles, but these bottles have limited contact with the catheter, resulting in low heating efficiency. Therefore, developing a device that is simple in structure, easy to use, and effectively heats nasogastric feeding catheters is of significant clinical importance and market demand. Utility Model Content

[0005] The core objective of this invention is to provide a catheter heating component to address the problem of gastrointestinal irritation caused by excessively low temperatures of the nutrient solution during nasogastric feeding. By effectively heating the nasogastric feeding catheter, the nutrient solution is ensured to maintain a suitable temperature upon entering the patient's body, thereby improving patient comfort, reducing gastrointestinal adverse reactions caused by low-temperature nutrient solutions, enhancing treatment efficacy, and providing better support for patient recovery. Furthermore, this heating component offers flexible application scenarios, allowing for preheating of the nasogastric feeding catheter before insertion and real-time heating of the nutrient solution during administration after insertion.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A conduit heating assembly includes a heat conductor and an electric heating element. The heat conductor is cylindrical and has a coaxially arranged spiral receiving groove on its circumferential surface. The spiral receiving groove is used to accommodate a conduit spirally wound around the circumferential surface of the heat conductor. The electric heating element is placed inside the heat conductor and heats the heat conductor when energized.

[0008] Furthermore, a handle is fixedly attached to one axial end of the heat conductor.

[0009] Furthermore, the handle is cylindrical, and its length direction is parallel to the axial direction of the heat conductor.

[0010] Furthermore, the handle is cylindrical.

[0011] Furthermore, the diameter of the handle is smaller than the diameter of the heat conductor.

[0012] Furthermore, the handle is equipped with a control switch, which is used to control the power supply to and from the heating element.

[0013] Furthermore, the control switch is located on the side of the handle near the heat conductor.

[0014] Furthermore, the side of the handle and the edge of the heat conductor are connected together by a bearing slope, and the control switch is located on the side of the handle away from the bearing slope.

[0015] Furthermore, the inclined surface of the support has an indicator light. When the electric heating element is powered on, the indicator light will light up, and when the electric heating element is powered off and stops working, the indicator light will turn off.

[0016] Furthermore, the heat conductor has a radially outwardly extending limiting ring plate at one end near the handle, and one side of the limiting ring plate has a notch for the conduit to pass through.

[0017] The conduit heating assembly proposed in this utility model has the following beneficial effects:

[0018] 1. Precise and Efficient Heating: The catheter heating assembly of this invention achieves precise heating of the nasogastric feeding catheter and its nutrient solution through the close cooperation of a heat conductor and an electric heating element. The electric heating element rapidly generates heat upon being energized, and this heat, thanks to the excellent thermal conductivity of the heat conductor, is quickly and evenly transferred to the catheter and nutrient solution. Compared with traditional heating methods, this significantly improves heating efficiency and effectively avoids situations where the nutrient solution is too hot or too cold due to uneven heating. It ensures that the nutrient solution maintains a suitable temperature throughout the delivery process, thereby significantly reducing the irritation of the patient's gastrointestinal tract by low-temperature nutrient solutions and providing patients with a safer and more comfortable nasogastric feeding experience.

[0019] 2. Convenient and Safe Operation: The handle, control switch, load-bearing ramp, and limiting ring plate of the component are meticulously designed and arranged. The shape and size of the handle conform to ergonomic principles, making it easy for users to hold and operate, and reducing fatigue even after prolonged use. The control switch is located on the side of the handle near the heat conductor, easily accessible to the user's fingers, making operation simple and preventing accidental activation, effectively ensuring safety during the heating process. The load-bearing ramp not only serves as a structural connection but also facilitates the user's fixation of the conduit, and the indicator light on it clearly displays the working status of the heating component, allowing the user to understand the equipment status at any time. The limiting ring plate ensures the stability of the conduit during winding and heating, preventing problems such as conduit detachment, further improving the convenience and safety of operation.

[0020] 3. Broad Application Prospects: Due to the numerous advantages mentioned above, this catheter heating component has broad application prospects in the medical field. Whether in clinical treatment in hospitals or in home care settings, it can provide strong support for nasogastric feeding nutrition therapy. It can effectively improve the patient's treatment experience, enhance treatment outcomes, and reduce the burden on medical staff and patients' families. With the continuous improvement of people's requirements for the quality of medical care, this component is expected to become an important auxiliary device in the process of nasogastric feeding nutrition therapy, bringing benefits to more patients who need nasogastric feeding nutrition support. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 ;

[0023] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0024] Figure 3 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 2 ;

[0025] Figure 4 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 3 .

[0026] The meanings of the labels in the attached diagram are as follows:

[0027] Heat conductor 1, spiral receiving groove 11, limiting ring plate 12, notch 121, handle 2, control switch 21, bearing inclined surface 22, indicator light 221. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] Reference Figures 1-4 As shown, the catheter heating assembly of this utility model mainly consists of a heat conductor 1 and an electric heating element. The heat conductor 1 is cylindrical, a shape that facilitates uniform heat transfer and allows for easy winding of the nasogastric feeding catheter. A coaxially arranged spiral receiving groove 11 is provided on the circumference of the heat conductor 1. This spiral receiving groove 11 is designed to precisely accommodate the nasogastric feeding catheter spirally wound around the circumference of the heat conductor 1. This tight fit ensures efficient heat transfer from the heat conductor 1 to the nasogastric feeding catheter and its nutrient solution. The electric heating element is built into the heat conductor 1. When energized, the electric heating element rapidly generates heat, which is evenly distributed throughout the heat conductor 1 through conduction, thereby heating the nasogastric feeding catheter wound around its circumference and its nutrient solution. Whether before or after insertion of the nasogastric feeding catheter, simply winding the catheter onto the heat conductor as required and connecting the power supply will heat the catheter and its internal nutrient solution.

[0030] In this embodiment, a handle 2 is fixedly connected to one axial end of the heat conductor 1. The handle 2 is a cylindrical structure, with its length direction parallel to the axial direction of the heat conductor 1. This design makes it more convenient for the user to operate the heating component, conforming to ergonomic principles. Furthermore, the handle 2 can be designed as a cylinder, which is more comfortable to hold and can reduce hand fatigue. At the same time, the diameter of the handle 2 is smaller than the diameter of the heat conductor 1. This size difference not only makes it easier for the user to hold the handle, but also makes the overall structure more harmonious, preventing the heating component from being affected by an excessively large handle. Whether heating the conduit during the preparation stage or heating the nutrient solution during use, the user can easily operate the handle.

[0031] In this embodiment, a control switch 21 is provided on the handle 2. The main function of the control switch 21 is to control the on / off state of the electric heating element. The control switch 21 is located on the side of the handle 2 closer to the heat conductor 1, a carefully considered design. When the user holds the handle 2, their fingers can naturally reach the control switch 21, facilitating operation without requiring complex hand movements, thus improving ease of use and efficiency. The heating element can be easily turned on and off via the control switch in different usage scenarios. Furthermore, this design reduces the risk of accidental activation, effectively preventing the heating element from being accidentally turned on or off, ensuring the stability and safety of the entire heating process.

[0032] In this embodiment, the side of the handle 2 and the edge of the heat conductor 1 are connected by a supporting inclined surface 22. The design of the supporting inclined surface 22 not only serves as a connection and transition in structure, but also has a practical functional purpose. An indicator light 221 is installed on the supporting inclined surface 22. When the electric heating element is powered on, the indicator light 221 will light up, intuitively showing the user that the heating component is in working condition; when the electric heating element is powered off and stops working, the indicator light 221 will turn off, allowing the user to clearly understand the working status of the heating component and thus better control the heating process. Whether in the preheating stage before installation or in the use stage after installation, the user can clearly understand the working status of the heating component through the indicator light. The control switch 21 is located on the side of the handle 2 away from the supporting inclined surface 22. This layout design allows the indicator light 221 to face the user's face when the user controls the control switch 21 with their index finger, so that the user can observe the indicator light 221.

[0033] Furthermore, the inclined support 22 allows the user to press and secure one end of the nasogastric feeding catheter with their thumb. This design helps maintain the stability of the catheter's position when it is wrapped around the heat conductor 1, ensuring a tight fit between the catheter and the spiral receiving groove 11, thereby guaranteeing good heating performance.

[0034] In this embodiment, the end of the heat conductor 1 near the handle 2 has a radially outwardly extending limiting ring plate 12. On one side of the limiting ring plate 12, a notch 121 is provided for the passage of a feeding catheter. When installing the nasogastric feeding catheter, one end of the catheter passes through the notch 121 and is then wound along the spiral receiving groove 11. The limiting ring plate 12 prevents the catheter from coming off the end of the heat conductor 1 near the limiting ring plate 12 during winding, allowing the user to efficiently wind the nasogastric feeding catheter on the heat conductor 1.

[0035] The heating procedure before implantation is as follows:

[0036] The user holds handle 2 with their left hand, then inserts the conduit into notch 121 with their right hand, and places the non-insertion end on the bearing inclined surface 22 and presses it in place with their left thumb. Then, the remaining part of the conduit is spirally wound into the spiral receiving groove 11 on the circumference of the heat conductor 1. The user then presses the conduit insertion end with their right hand to prevent the conduit from loosening. After that, the user presses the control switch 21 with their left index finger to control the heating element to heat up the conduit. Once the conduit is preheated, it can be removed for installation.

[0037] The heating procedure after implantation is as follows:

[0038] The user holds handle 2 with their left hand, then inserts the catheter into notch 121 with their right hand, and places the non-insertion end on the bearing inclined surface 22 and presses it in place with their left thumb. Then, the part of the catheter outside the patient's body is spirally wound into the spiral receiving groove 11 on the circumference of the heat conductor 1. The spirally wound part is then fixed with tape or bandage to fix this part of the catheter to the circumference of the heat conductor 1 and prevent the catheter from loosening. Then, the user presses the control switch 21 with their left index finger to control the electric heating element to heat up. The heat is transferred to the catheter through the heat conductor 1, thereby heating the nutrient solution flowing through the catheter and ensuring that the nutrient solution maintains a suitable temperature during delivery.

[0039] In summary, this utility model discloses a catheter heating assembly with an ingenious structure and highly efficient functionality. Through the coordinated operation of the heat conductor 1 and the electric heating element, precise heating of the nasogastric feeding catheter and nutrient solution is achieved, effectively solving the problem of gastrointestinal irritation caused by low-temperature nutrient solutions. The rational layout and design of components such as the handle 2, control switch 21, bearing inclined surface 22, and limiting ring plate 12 greatly improve the convenience, safety, and stability of operation. Whether it is preheating before insertion of the nasogastric feeding catheter or heating the nutrient solution after insertion, it provides reliable support for medical staff and patients. This catheter heating assembly is expected to be widely used in the medical field, bringing better results and experience to nasogastric feeding therapy.

[0040] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A catheter heating assembly, characterized by: The application relates to a heat-conducting body and an electric heating body, the heat-conducting body is cylindrical, the circumferential surface of the heat-conducting body is provided with coaxially arranged spiral accommodating grooves for accommodating a spiral pipe wound on the circumferential surface of the heat-conducting body, and the electric heating body is arranged in the heat-conducting body and can heat the heat-conducting body after being electrified.

2. The conduit heating assembly of claim 1, wherein: One end of the heat-conducting body is fixedly connected with a handle.

3. The conduit heating assembly of claim 2, wherein: The handle is cylindrical, and the length direction of the handle is parallel to the axial direction of the heat-conducting body.

4. The conduit heating assembly of claim 3, wherein: The handle is cylindrical.

5. The conduit heating assembly of claim 3, wherein: The diameter of the handle is smaller than the diameter of the heat-conducting body.

6. The conduit heating assembly of claim 3, wherein: The handle is provided with a control switch for controlling the on-off of the electric heating body.

7. The conduit heating assembly of claim 6, wherein: The control switch is located on the side of the handle close to the heat-conducting body.

8. The conduit heating assembly of claim 7, wherein: The side surface of the handle and the edge of the heat-conducting body are jointly connected with a bearing inclined surface, and the control switch is located on the side of the handle away from the bearing inclined surface.

9. The conduit heating assembly of claim 8, wherein: The bearing inclined surface is provided with an indicating lamp, the indicating lamp is bright when the electric heating body is electrified and works, and the indicating lamp is dark when the electric heating body is de-energized and stops working.

10. The conduit heating assembly of claim 2, wherein: The end of the heat-conducting body close to the handle is provided with a limiting ring plate extending radially outward, and one side of the limiting ring plate is provided with a gap for the pipe to pass through.