Portable constant temperature device for infusion of chemotherapy drugs for tumor patients
The portable chemotherapy drug infusion constant temperature device for cancer patients solves the problems of arm fatigue and low drug temperature during chemotherapy by using waist fixation and electric heating film heating, allowing patients to move freely and receive infusion comfortably.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINESE PEOPLES LIBERATION ARMY GENERAL HOSPITAL HAINAN HOSPITAL
- Filing Date
- 2025-03-18
- Publication Date
- 2026-07-24
AI Technical Summary
Cancer patients often experience arm fatigue during chemotherapy drug infusion, making it difficult to free their hands. Furthermore, the low temperature of chemotherapy drugs can cause vasoconstriction and discomfort, which cannot be effectively addressed by existing equipment.
A portable thermostat for chemotherapy drug infusion in cancer patients was designed. The infusion pump is fixed by a tightening strap that fits the waist with a semi-circular ring, and the catheter is heated by an electric heating film, so as to achieve drug temperature regulation and free up the hands.
This allows patients to free their hands and regulate the temperature of the medication during chemotherapy infusion, reducing discomfort and improving the stability and battery life of the infusion pump.
Smart Images

Figure CN224540721U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a portable constant temperature device for chemotherapy drug infusion in cancer patients. Background Technology
[0002] Medical devices refer to instruments, equipment, appliances, in vitro diagnostic reagents and calibrators, materials and other similar or related items that are used directly or indirectly on the human body, including the necessary computer software.
[0003] In current technologies, when cancer patients receive drug infusions, their arms must exert continuous force during prolonged infusions, easily leading to fatigue. Maintaining the stability of the infusion pump while walking or active is also difficult. The inability to free the hands significantly restricts patients' daily activities; for example, if a patient wants to pour water, they must stop what they are doing, carefully put down the infusion pump, and then pick it up to pour. Furthermore, in the absence of constant temperature, chemotherapy drugs are often at a low temperature. When these cold drugs enter the bloodstream, they stimulate vasoconstriction, often causing a noticeable stinging sensation at the infusion site. As the drug continues to be administered, this stinging sensation may spread along the blood vessels, causing intense discomfort. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a portable constant temperature device for chemotherapy drug infusion in cancer patients.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a portable constant temperature device for chemotherapy drug infusion in cancer patients, comprising: a portable mechanism, a heat preservation mechanism on one side of the portable mechanism, a fixing mechanism on the bottom side of the heat preservation mechanism, the portable mechanism including a semi-circular ring, a collar at one end of the semi-circular ring, a side end of the collar being fixedly connected to one end of the semi-circular ring, a tightening roller on the inner side of the collar, the inner side of the collar being rotatably connected to the outer side of the tightening roller, a tightening band on the inner wall of the tightening roller, the inner wall of the tightening roller being in contact with the outer side of one end of the tightening band, a tapered rod on one side of the tightening band, and one side of the tightening band being engaged with one end of the tapered rod.
[0006] In a preferred embodiment, the heat preservation mechanism includes a connecting plate, an infusion pump body is disposed on the inner side of the connecting plate, one end of the infusion pump body is in contact with the inner side of the connecting plate, a side plate is disposed on one side of the infusion pump body, one side of the infusion pump body is in contact with one side of the side plate, a second lead screw is disposed at the middle of the other side of the side plate, one end of the second lead screw is rotatably connected to the middle of the other side of the side plate, and one end of the connecting plate is fixedly connected to one side of the semi-circular plate.
[0007] In a preferred embodiment, the outer side of the lead screw is threadedly rotatably connected to the inner wall of the connecting plate. A battery is provided on the inner wall of the connecting plate, and the inner wall of the connecting plate is fixedly connected to the outer side of the battery. A wire is provided on the bottom side of the battery, and one end of the wire is fixedly connected to the bottom side of the battery. An electric heating film is provided on the other end of the wire, and one side of the electric heating film is fixedly connected to the other end of the electric heating film. The inner surface of the electric heating film contacts one side of the infusion pump body.
[0008] In a preferred embodiment, the fixing mechanism includes an outer ring, a base support is provided on the bottom side of the outer ring, one end of the bottom side of the outer ring is fixedly connected to the base support, the other end of the base support is fixedly connected to the bottom side of the connecting plate, the inner wall of the connecting plate is fixedly connected to the outer side of the wire, and the outer side of the wire is connected through the inner wall of the outer ring.
[0009] In a preferred embodiment, one end of the tapered rod is provided with an inner plate, and one end of the tapered rod is fixedly connected to one end of the inner plate. A cavity is provided on the outer side of the inner plate, and the outer side of the inner plate is slidably connected to the inner wall of the cavity. The outer side of the cavity is fixedly connected to the inner wall of the tightening roller. A spring is provided on the inner side of the cavity, and one end of the spring is fixedly connected to the inner side of the cavity. The other end of the spring is fixedly connected to one side of the inner plate.
[0010] In a preferred embodiment, the top end of the tightening roller is provided with a handle, the top end of the tightening roller is fixedly connected to the bottom end of the handle, a locking ring is provided on the outside of the handle, and the outside of the handle is slidably engaged with the inside of the locking ring.
[0011] In a preferred embodiment, the inner wall of the locking ring is provided with a lead screw, the inner wall of the locking ring is threaded to the outer side of the lead screw, one end of the lead screw is provided with a semi-circular block, and one end of the lead screw is rotatably connected to one side of the semi-circular block.
[0012] In a preferred embodiment, a guide rod is provided on the outer side of the locking ring, and the outer side of the locking ring and the outer side of the guide rod are slidably connected through each other, with the bottom end of the guide rod being fixedly connected to the top side of the semicircular ring.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. By fitting the semi-circular ring to the waist and tightening the strap, the semi-circular ring has a stable base at the waist. The connecting plate and the semi-circular ring are integrated. The infusion pump body is placed into the connecting plate. By rotating the screw, the side plate gradually approaches the infusion pump body. When the side plate contacts the infusion pump body, the infusion pump body is fixed. This frees the patient's hands during drug infusion, making the patient more free to move. 2. Pass the tubing on the infusion pump body through the heating film. During infusion, the heating film heats the liquid in the tubing, raising its temperature. One side of the heating film is connected to a wire, and the other end of the wire is connected to a battery. Therefore, the heating film is powered by the battery in the connecting plate. This power supply method is direct and efficient. Compared with some complex heating devices, the heating film has lower energy consumption. While raising the liquid temperature, it does not excessively consume battery power, ensuring the infusion pump's power supply during long-term use. Attached Figure Description
[0014] Figure 1 This utility model provides a structural schematic diagram of a portable constant-temperature infusion device for chemotherapy drugs in cancer patients.
[0015] Figure 2 This is a side view of the portable mechanism components of a portable chemotherapy drug infusion constant temperature device for cancer patients provided by this utility model.
[0016] Figure 3 This is an enlarged structural diagram of the portable mechanism components of a portable chemotherapy drug infusion constant temperature device for cancer patients provided by this utility model.
[0017] Figure 4 This is a side sectional view of the portable mechanism components of a portable chemotherapy drug infusion constant temperature device for cancer patients provided by this utility model.
[0018] Figure 5 This is a top view of the portable mechanism components of a portable chemotherapy drug infusion constant temperature device for cancer patients provided by this utility model.
[0019] Figure 6 This utility model provides a schematic diagram of the insulation mechanism component of a portable constant temperature device for chemotherapy drug infusion in cancer patients.
[0020] Figure 7 A bottom view of the insulation and fixing mechanism components of a portable chemotherapy drug infusion constant temperature device for cancer patients provided by this utility model.
[0021] Legend: 1. Portable mechanism; 11. Semicircular ring; 12. Tightening belt; 13. Collar; 14. Tightening roller; 15. Cavity; 16. Inner plate; 17. Spring; 18. Tapered rod; 19. Turning handle; 110. Locking ring; 111. Guide rod; 112. Semicircular block; 114. Lead screw one; 2. Insulation mechanism; 21. Connecting plate; 22. Infusion pump body; 23. Side plate; 24. Lead screw II; 25. Battery; 26. Heating film; 3. Fixing mechanism; 31. Outer ring; 32. Base support. Detailed Implementation
[0022] 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.
[0023] Example 1: As Figures 1-7As shown, this utility model provides a technical solution: a portable constant temperature device for chemotherapy drug infusion in cancer patients, comprising: a portable mechanism 1, a heat preservation mechanism 2 disposed on one side of the portable mechanism 1, a fixing mechanism 3 disposed on the bottom side of the heat preservation mechanism 2, the portable mechanism 1 including a semi-circular ring 11, a collar 13 disposed at one end of the semi-circular ring 11, one end of the semi-circular ring 11 fixedly connected to one side of the collar 13, a tightening roller 14 disposed on the inner side of the collar 13, the inner side of the collar 13 and the outer side of the tightening roller 14 being rotatably connected through the collar 13, a tightening band 12 disposed on the inner wall of the tightening roller 14, the inner wall of the tightening roller 14 contacting the outer side of one end of the tightening band 12, a tapered rod 18 disposed on one side of the tightening band 12, and the tightening band 12... One side of the roller 14 is engaged with one end of the cone rod 18. One end of the cone rod 18 is provided with an inner plate 16. One end of the cone rod 18 is fixedly connected to one end of the inner plate 16. A cavity 15 is provided on the outer side of the inner plate 16. The outer side of the inner plate 16 is slidably connected to the inner wall of the cavity 15. The outer side of the cavity 15 is fixedly connected to the inner wall of the tightening roller 14. A spring piece 17 is provided on the inner side of the cavity 15. One end of the spring piece 17 is fixedly connected to the inner side of the cavity 15. The other end of the spring piece 17 is fixedly connected to one side of the inner plate 16. A handle 19 is provided at the top of the tightening roller 14. The top of the tightening roller 14 is fixedly connected to the bottom end of the handle 19. A locking ring 110 is provided on the outer side of the handle 19. The outer side of the handle 19 is connected to the inner side of the locking ring 110. The locking ring 110 has a sliding snap-fit mechanism. A lead screw 114 is provided on the inner wall of the locking ring 110. The inner wall of the locking ring 110 is threadedly connected to the outer side of the lead screw 114. A semi-circular block 112 is provided at one end of the lead screw 114, and one end of the lead screw 114 is rotatably connected to one side of the semi-circular block 112. A guide rod 111 is provided on the outer side of the locking ring 110, and the outer side of the locking ring 110 is slidably connected to the outer side of the guide rod 111. The bottom end of the guide rod 111 is fixedly connected to the top side of the semi-circular ring 11. The insulation mechanism 2 includes a connecting plate 21. An infusion pump body 22 is provided on the inner side of the connecting plate 21, and the inner side of the connecting plate 21 contacts one end of the infusion pump body 22. A side plate 23 is provided on one side of the infusion pump body 22. One side of the pump body 22 is in contact with one side of the side plate 23. A second lead screw 24 is provided at the middle of the other side of the side plate 23. The middle of the other side of the side plate 23 is rotatably connected to one end of the second lead screw 24. One end of the connecting plate 21 is fixedly connected to one side of the semicircular plate. The outer side of the second lead screw 24 is threadedly rotatably connected to the inner wall of the connecting plate 21. A battery 25 is provided on the inner wall of the connecting plate 21. The inner wall of the connecting plate 21 is fixedly connected to the outer side of the battery 25. A wire is provided on the bottom side of the battery 25. The bottom side of the battery 25 is fixedly connected to one end of the wire. An electric heating film 26 is provided on the other end of the wire. The other end of the wire is fixedly connected to one side of the electric heating film 26. The inner surface of the electric heating film 26 is in contact with the outer side of one end of the side of the pump body 22.
[0024] In this embodiment, the portable chemotherapy drug infusion constant temperature device for cancer patients uses a traditional infusion pump body 22 that is carried by the patient by hand for drug infusion. Therefore, the semi-circular ring 11 is fitted to the waist. Since the semi-circular ring 11 is designed with a tightening strap 12, the tightening strap 12 is fitted around the waist. Then, one end of the tightening strap 12 is placed into the tightening roller 14. The tightening roller 14 is equipped with one end of the semi-circular ring 11. Before placing it into the tightening roller 14, the inner plate 16 needs to be pulled. After placing it in, the external force on the inner plate 16 is released, and the spring 17 will elastically release and reset the inner plate 16. Since a cone rod 18 is designed on one side of the inner plate 16, the cone rod 18 is naturally inserted into one end of the tightening strap 12. By rotating the handle 19, the tightening belt 12 is wrapped around the tightening roller 14, thereby making the tightening roller 14 and the semi-circular ring 11 more closely in contact with the patient's waist. This provides a stable support base for the infusion pump body 22 before it is inserted into the connecting plate 21. Since the connecting plate 21 and the semi-circular ring 11 are integrated, the tightening roller 14 will wrap around the inner plate 16 during the wrapping process. This will increase the pressure between the cone rod 18 and the tightening belt 12, making it difficult for the tightening belt 12 to come out of the tightening roller 14. This avoids the risk of the infusion pump shifting or even falling off due to the tightening belt 12 becoming loose. At the same time, the tightening belt 12 is made of soft material and has a certain degree of elasticity. While ensuring the tightening effect, it will not cause marks or discomfort to the patient's waist skin, allowing the patient to be in a relatively comfortable state during chemotherapy. By rotating the lead screw 114, the locking ring 110 moves from its original position, bringing it into contact with the handle 19. Both the locking ring 110 and the handle 19 have grooves, which ensure that the handle 19 remains stationary after rotation. This ingenious design prevents the handle 19 from accidentally rotating due to unintentional touch by the patient or slight vibrations during daily activities, ensuring that the tightness of the infusion pump is always maintained at the set state, providing a solid guarantee for the stability of chemotherapy drug infusion. During the movement of the locking ring 110, the guide rod 111 on the outside of the locking ring 110 allows it to move along a designed path, ensuring that the locking ring 110 can effectively engage with the handle 19.
[0025] Secondly, after the wearing is completed, the infusion pump body 22 is placed into the connecting plate 21, and the screw 24 is rotated to make the side plate 23 gradually approach the infusion pump body 22. When the side plate 23 contacts the infusion pump body 22, it means that the infusion pump body 22 is fixed. In this way, the patient's hands are freed during the drug infusion process, which makes the patient more free to move. By passing the tubing on the infusion pump body 22 through the heating film 26, the liquid in the tubing can be heated during infusion by the heating film 26, thus raising the temperature to a certain extent. One side of the heating film 26 is connected to a wire, and the other end of the wire is connected to the battery 25. Therefore, the heating film 26 is powered by the battery 25 in the connecting plate 21. This power supply method is direct and efficient. Compared with some complex heating devices, the heating film 26 has low energy consumption. While raising the liquid temperature, it will not excessively consume the battery 25, ensuring the power supply of the infusion pump during long-term use.
[0026] Example 2: Figures 1-7 As shown, the fixing mechanism 3 includes an outer ring 31, a base support 32 is provided on the bottom side of the outer ring 31, the bottom side of the outer ring 31 is fixedly connected to one end of the base support 32, the other end of the base support 32 is fixedly connected to the bottom side of the connecting plate 21, the inner wall of the connecting plate 21 is fixedly connected to the outer side of the wire, and the outer side of the wire is connected through the inner wall of the outer ring 31.
[0027] In this embodiment, an outer ring 31 is designed on the outside of the heating film 26. When the heating film 26 heats the liquid in the conduit, it reduces the loss of heat to the surrounding environment and forms a relatively closed thermal field, allowing more heat to be concentrated on the drug liquid in the conduit, thereby improving heating efficiency and enabling the drug to reach the appropriate temperature more quickly. A base support 32 is fixed to the bottom side of the outer ring 31, and the base support 32 is fixed to the connecting plate 21. At the same time, the base support 32 restricts the wires, thus ensuring the stability of the heating film 26 during use. The wires are easily affected by external forces such as pulling and bending. The base support 32 fixes the wires in a specific position, effectively avoiding friction and collision between the wires and other components, greatly reducing the risk of damage to the outer sheath of the wires and breakage of the internal metal wires, and ensuring the stability of power transmission.
[0028] like Figures 1-7As shown, the semicircular ring 11 is fitted to the waist. Since the semicircular ring 11 is designed with a tightening strap 12, the tightening strap 12 is fitted around the waist. Then, one end of the tightening strap 12 is placed into the tightening roller 14. One end of the tightening roller 14 is installed on the tightening roller 14. Before placing it into the tightening roller 14, the inner plate 16 needs to be pulled. After placing it in, the external force on the inner plate 16 is released, and the spring piece 17 will elastically release and reset the inner plate 16. Since a tapered rod 18 is designed on one side of the inner plate 16, the tapered rod 18 will naturally... Insert one end of the tightening belt 12 and rotate the handle 19 to make the tightening belt 12 wrap around the tightening roller 14. This makes the tightening roller 14 and the semi-circular ring 11 more closely contact the patient's waist, thus providing a stable support base for the infusion pump body 22 before the connecting plate 21 is inserted. Since the connecting plate 21 and the semi-circular ring 11 are integrated, during the wrapping process, the tightening roller 14 will wrap around the inner plate 16, so the pressure between the cone rod 18 and the tightening belt 12 will increase, allowing... The tightening band 12 is not easily dislodged from the tightening roller 14. Subsequently, the lead screw 114 is rotated, causing the locking ring 110 to move on its original position and contact the handle 19. Both the locking ring 110 and the handle 19 have grooves. The grooves correspond to keep the handle 19 stationary after rotation. This ingenious design prevents the handle 19 from accidentally rotating due to the patient's unconscious touch or slight vibrations during daily activities. Finally, by placing the infusion pump body 22 into the connecting plate 21, the lead screw 24 is rotated, causing the side plate 23 to gradually approach the infusion pump body 22. When the side plate 23 contacts the infusion pump body 22, the infusion pump body 22 is fixed. This frees the patient's hands during drug infusion. The tubing on the infusion pump body 22 is passed through the heating film 26. During infusion, the heating film 26 heats the liquid in the tubing, raising its temperature. An outer ring 31 is designed on the outside of the heating film 26. When the heating film 26 heats the liquid in the conduit, it reduces the loss of heat to the surrounding environment and forms a relatively closed thermal field, allowing more heat to be concentrated on the drug liquid in the conduit, thereby improving heating efficiency and enabling the drug to reach the appropriate temperature more quickly. A base support 32 is fixed to the bottom side of the outer ring 31, and the base support 32 is fixed to the connecting plate 21. At the same time, the base support 32 restricts the wires, thus ensuring the stability of the heating film 26 during use. The wires are easily affected by external forces such as pulling and bending, and the base support 32 fixes the wires in a specific position.
[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A portable thermostatic infusion device for chemotherapy drugs in cancer patients, characterized in that, include: A portable mechanism (1) is provided with a heat preservation mechanism (2) on one side and a fixing mechanism (3) on the bottom side of the heat preservation mechanism (2). The portable mechanism (1) includes a semi-circular ring (11). A collar (13) is provided at one end of the semi-circular ring (11). One end of the semi-circular ring (11) is fixedly connected to one side of the collar (13). A tightening roller (14) is provided on the inner side of the collar (13). The inner side of the collar (13) is rotatably connected to the outer side of the tightening roller (14). A tightening band (12) is provided on the inner wall of the tightening roller (14). The inner wall of the tightening roller (14) is in contact with the outer side of one end of the tightening band (12). A cone rod (18) is provided on one side of the tightening band (12). One side of the tightening band (12) is engaged with one end of the cone rod (18).
2. The portable chemotherapy drug infusion constant temperature device for cancer patients according to claim 1, characterized in that: The heat preservation mechanism (2) includes a connecting plate (21). An infusion pump body (22) is provided on the inner side of the connecting plate (21). The inner side of the connecting plate (21) is in contact with one end of the infusion pump body (22). A side plate (23) is provided on one side of the infusion pump body (22). One side of the infusion pump body (22) is in contact with one side of the side plate (23). A second lead screw (24) is provided at the middle of the other side of the side plate (23). The middle of the other side of the side plate (23) is rotatably connected to one end of the second lead screw (24). One end of the connecting plate (21) is fixedly connected to one side of the semicircular plate.
3. The portable chemotherapy drug infusion constant temperature device for cancer patients according to claim 2, characterized in that: The outer side of the lead screw (24) is threadedly connected to the inner wall of the connecting plate (21). The inner wall of the connecting plate (21) is provided with a battery (25). The inner wall of the connecting plate (21) is fixedly connected to the outer side of the battery (25). A wire is provided on the bottom side of the battery (25). The bottom side of the battery (25) is fixedly connected to one end of the wire. The other end of the wire is provided with an electric heating film (26). The other end of the wire is fixedly connected to one side of the electric heating film (26). The inner surface of the electric heating film (26) is in contact with one side of the infusion pump body (22).
4. The portable chemotherapy drug infusion constant temperature device for cancer patients according to claim 1, characterized in that: The fixing mechanism (3) includes an outer ring (31), and a base support (32) is provided on the bottom side of the outer ring (31). The bottom side of the outer ring (31) is fixedly connected to one end of the base support (32), and the other end of the base support (32) is fixedly connected to the bottom side of the connecting plate (21). The inner wall of the connecting plate (21) is fixedly connected to the outer side of the wire, and the outer side of the wire is connected through the inner wall of the outer ring (31).
5. A portable thermostatic infusion device for chemotherapy drugs in cancer patients according to claim 1, characterized in that: One end of the cone rod (18) is provided with an inner plate (16), and one end of the cone rod (18) is fixedly connected to one end of the inner plate (16). A cavity (15) is provided on the outer side of the inner plate (16), and the outer side of the inner plate (16) is slidably connected to the inner wall of the cavity (15). The outer side of the cavity (15) is fixedly connected to the inner wall of the tightening roller (14). A spring piece (17) is provided on the inner side of the cavity (15), and one end of the spring piece (17) is fixedly connected to the inner side of the cavity (15). The other end of the spring piece (17) is fixedly connected to one side of the inner plate (16).
6. A portable thermostatic infusion device for chemotherapy drugs in cancer patients according to claim 1, characterized in that: The top end of the tightening roller (14) is provided with a handle (19), the top end of the tightening roller (14) is fixedly connected to the bottom end of the handle (19), and a locking ring (110) is provided on the outside of the handle (19), and the outside of the handle (19) is slidably engaged with the inside of the locking ring (110).
7. A portable thermostatic infusion device for chemotherapy drugs in cancer patients according to claim 6, characterized in that: The inner wall of the locking ring (110) is provided with a lead screw (114), the inner wall of the locking ring (110) is threaded to the outer side of the lead screw (114), one end of the lead screw (114) is provided with a semi-circular block (112), and one end of the lead screw (114) is rotatably connected to one side of the semi-circular block (112).
8. A portable thermostatic infusion device for chemotherapy drugs in cancer patients according to claim 7, characterized in that: A guide rod (111) is provided on the outer side of the locking ring (110). The outer side of the locking ring (110) and the outer side of the guide rod (111) are slidably connected through each other. The bottom end of the guide rod (111) is fixedly connected to the top side of the semicircular ring (11).