Infusion protection fixture
By securing the infusion tubing with dome-shaped protective components and snap-fit assemblies, combined with a soft gasket layer and wrist restraint strap, the problem of hand displacement and injury during infusion in elderly patients is solved, achieving stable fixation and comfortable protection.
Patent Information
- Application Number
- CN202520507720.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-03-21
AI Technical Summary
Elderly patients' hands are prone to displacement during intravenous infusion. Existing fixation methods may lead to needle displacement and hand injury, especially adhesive tape fixation, which is prone to tearing off the skin.
The device uses a dome-shaped protective component to cover the hand, combined with a buckle assembly to secure the infusion tubing. A soft gasket layer contacts the hand, and a base plate fixing assembly and wrist restraint strap prevent the hand from shaking.
It effectively prevents needle displacement, reduces the risk of hand injury, and improves fixation comfort and safety.
Smart Images

Figure CN224671900U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of infusion auxiliary device technology, and in particular to an infusion protection and fixation device. Background Technology
[0002] Intravenous infusion, also known as drip infusion or IV drip, is the administration of a large dose of intravenous fluid into the body. During an infusion, the needle needs to be accurately inserted into the blood vessel to ensure that the medication can enter the bloodstream and circulate smoothly. Therefore, the hand should not be moved or bent during the infusion, otherwise the needle may shift or come out of the blood vessel, causing the needle to move within the blood vessel and irritate the blood vessel wall, resulting in pain or discomfort.
[0003] When elderly patients receive intravenous infusions, they may forget they are receiving an infusion due to cognitive decline. They may inadvertently stand up or touch the needle, tubing, or other parts, causing needle displacement and bulging. Currently, when administering infusions, patients' hands are usually placed on the armrest of a chair and then secured to it. Because elderly patients have dry skin and thin subcutaneous fat, using gauze for fixation can easily cause the hand to slip. Therefore, to improve fixation, adhesive tape is often used. However, adhesive tape is sticky, and elderly patients' skin is thin and fragile. When removing the tape from the patient's hand, it can easily tear off along with the skin, causing skin damage and thus hand injury. Utility Model Content
[0004] The technical problem to be solved by this application is to provide an infusion protection and fixation device that can fix the patient's hand, prevent needle displacement, and prevent hand injury.
[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution:
[0006] An infusion protection and fixing device, characterized in that it includes a base plate, and the top of the base plate is provided with a dome-shaped protective component that can be flipped and covered;
[0007] The dome-shaped protective component includes a protective cover, an clearance groove on the left side of the protective cover, a buckle assembly at the right end point of the clearance groove and the top of the protective cover, the buckle assembly includes a buckle body, a through-hole extending to the side of the buckle body, a hole in the side wall of the buckle body, and a pressing element inside the hole; the inside of the protective cover is provided with a gasket layer.
[0008] The left side of the base plate is equipped with a fastener to assist in fixing the dome-shaped protective component.
[0009] The patient's hand is placed on the base plate, covered by the dome-shaped protective component. The infusion tube is inserted into the clearance groove and then into the buckle groove. It is then tightened by the clamping component to prevent the patient from pulling the infusion tube and causing the needle to shift. The gasket layer fits tightly against the patient's hand, both fixing the hand and preventing injury.
[0010] In order to fix the device in a designated position, some embodiments further include a base plate fixing assembly, which is distributed on the left and right sides of the base plate. The base plate fixing assembly includes a vertical and movable screw that passes through the base plate. The bottom of the screw is connected to a clamping plate, and the top of the screw is fitted with a nut.
[0011] In order to realize the flipping and covering movement trajectory of the dome-shaped protective component, in some embodiments, the right side of the protective cover is provided with a right flap, which is hinged to the top surface of the right side of the base plate.
[0012] To prevent interference with the infusion tube from entering the clearance groove, in some embodiments, a bayonet opening matching the clearance groove is provided on the left side of the gasket layer.
[0013] Compared with the prior art, this application achieves at least the following beneficial effects: The device uses a transparent dome-shaped protective component to cover the needle tip on the patient's hand, preventing the patient from accidentally touching the needle tip. The top of the dome-shaped protective component is also equipped with a buckle assembly for fixing the infusion tube. When the patient pulls the infusion tube, it can prevent the needle tip from shifting, thus avoiding swelling and bulging at the puncture site. A soft gasket layer is arranged on the dome-shaped protective component. Through the contact between the gasket layer and the skin of the hand, it can both restrain the hand from moving around and reduce the degree of adhesion to the hand, thus preventing damage to the skin of the hand. Attached Figure Description
[0014] One or more embodiments of this application will now be described by way of example only with reference to the accompanying drawings, in which:
[0015] Figure 1 This is a perspective view of an infusion protection and fixation device according to one embodiment of this application;
[0016] Figure 2 for Figure 1 A perspective view of the infusion protection and fixation device in the embodiment;
[0017] Figure 3 for Figure 2 A three-dimensional schematic diagram of the dome-shaped protective component in the infusion protection fixing device in the open state;
[0018] Figure 4 for Figure 3 A partial schematic diagram of point A in the middle;
[0019] Figure 5This is a partial exploded view of the finger sleeve assembly of the infusion protection and fixation device of this application.
[0020] The following are the labels in the diagram: 1. Base plate; 11. Groove; 12. First side groove; 13. Second side groove; 14. Vertical groove; 2. Nut; 3. Screw; 4. Wrist restraint strap; 5. Protective cover; 51. Right flange; 52. Clearance groove; 53. Left flange; 6. Washer layer; 7. Clamping component; 8. Buckle body; 9. Finger sleeve assembly; 91. Finger sleeve; 92. Sliding plate; 10. Baffle; 15. Hinge; 16. Clamping plate; 17. Buckle; 18. Fixing component; 19. Bolt; 20. Slider. Detailed Implementation
[0021] The present application will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present application may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.
[0022] In the description of this application, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limiting the scope of protection of this application.
[0023] To address the shortcomings of existing fixation methods for elderly patients undergoing intravenous infusions, which are prone to hand displacement and injury, the inventors, after careful analysis, discovered that the main reason for these problems lies in the current fixation devices used during infusions. These devices typically involve placing the hand directly on a plate and securing it with medical tape or gauze, leaving the injection site exposed. Since patients may perform other actions during infusions, such as picking up objects or using the restroom, they may touch the needle or infusion tubing, causing needle displacement and potentially puncturing the blood vessel wall, thus resulting in hand injury. Secondly, due to aging skin structure, the skin of elderly patients is relatively thin and fragile. Using tape or adhesive tape can easily become constricted, and the adhesive tape, being sticky, can easily tear off the skin along with the hand, causing skin damage and hand injury. Based on these analyses, the inventors have improved the structure of the hand fixation device used during intravenous infusions.
[0024] like Figure 1-4 As shown, in at least one embodiment of the infusion protection and fixing device of this application, a rectangular plastic base plate 1 is included, and a dome-shaped protective component that can be flipped up and covered is provided on the top of the base plate 1.
[0025] The dome-shaped protective component is used to cover and secure the hand of elderly patients receiving injections. The dome-shaped protective component includes an arc-shaped transparent protective cover 5 (allowing a clear view of the puncture site). A clearance groove 52 is laterally provided on the left side of the protective cover 5. A latching assembly is fixedly connected to the right end point of the clearance groove 52 and the top of the protective cover 5. The latching assembly is used to securely hold the infusion tube, preventing displacement of the infusion tube and thus preventing the needle from being displaced when the patient pulls on the infusion tube. The latching assembly includes a cylindrical latch body 8, which is connected to the top surface of the protective cover 5 via its bottom. A through-hole extending to the side is provided in the middle of the latch body 8, allowing the infusion tube to be secured within the slot. A hole is provided on the side wall of the latch body 8, and a clamping element 7 is installed within the hole. The clamping force of the slot and the clamping force of the clamping element 7 secure the infusion tube. An internal gasket layer 6 is provided inside the protective cover 5. The gasket layer 6 is preferably made of an annular silicone ring and contacts the back of the hand.
[0026] The left side of the base plate 1 is provided with a fastener 18 for auxiliary fixing of the dome-shaped protective component.
[0027] This device is typically fixed to the armrest of a chair or the side of a hospital bed. Therefore, this embodiment also includes a base plate 1 fixing assembly, which is distributed on the left and right sides of the base plate 1, as follows: Figure 1 As shown, the base plate 1 fixing assembly includes a vertically arranged screw 3. A through hole is provided on the base plate 1 for the screw 3 to pass through. A rectangular clamping plate 16 is welded to the bottom of the screw 3, and a nut 2 is fitted onto the top of the screw 3. The base plate 1 fixing assembly should preferably have two sets on each of the left and right sides to facilitate balanced fixing forces. Place the base plate 1 on the chair armrest, then rotate the screw 3 until the top surface of the clamping plate 16 contacts the bottom surface of the chair armrest. Then rotate the nut 2; after the nut 2 moves downwards and contacts the top surface of the base plate 1, it will not move downwards further. Continue rotating the nut 2, and the screw 3 will move upwards, causing the clamping plate 16 to clamp the armrest, thereby fixing the base plate 1.
[0028] The protective cover 5 has a right flange 51 on its right side, which is hinged to the top surface of the right side of the base plate 1. Specifically, a hinge 15 is installed on the top surface of the right side of the base plate 1, and the flange is fixedly connected to the other side of the hinge 15, so that the protective cover 5 can be opened and closed.
[0029] The buckle body 8 serves as a component for fixing the infusion tube, while the clamping member 7 further secures the infusion tube. The buckle body 8 has a threaded hole on its side wall. The clamping member 7 is a screw with a flat threaded end. After the infusion tube is inserted into the slot of the buckle body 8, the outside of the infusion tube contacts the inner wall of the slot for initial fixation. Then, tightening the screw compresses the side wall of the infusion tube, further securing it.
[0030] Since the protective cover 5 is made of hard, transparent plastic, it could easily cause discomfort if placed directly on the back of an elderly patient's hand. Therefore, a silicone gasket layer 6 is provided on the inner wall of the protective cover 5. The purpose is to both secure the patient's hand by deforming and wrapping it with the gasket layer 6, and to separate the protective cover 5 from the back of the hand, preventing hard contact between the back of the hand and the protective cover 5, thus improving comfort. When the protective cover 5 is placed over the hand, the relief groove 52 on the protective cover 5 allows the infusion tube to pass through, enabling the infusion tube to be secured close to the buckle 8. A matching slot for the relief groove 52 is provided on the left side of the gasket layer 6 to prevent interference with the infusion tube entering the relief groove 52.
[0031] The protective cover 5 has a left flange 53 on its left side. The top surface of the left flange 53 has a longitudinally arranged perforated groove. A slider 20 is installed within the perforated groove, with its top and bottom surfaces bent. A fixing member 18 serves as an auxiliary fixing component for the dome-shaped protective structure. The main body of the device is an L-shaped corner rod, with its short side fixedly connected to the left side of the base plate 1. After the protective cover 5 is closed, the slider 20 is pushed backward, causing it to movably engage between the long side of the corner rod and the base plate 1. The bend at the bottom of the slider 20 contacts the bottom of the corner rod. The bend at the top of the slider 20 prevents it from detaching from the perforated groove, while the bend at the bottom of the slider 20 contacts the bottom of the corner rod to prevent the protective cover 5 from loosening.
[0032] On the base plate 1, in front of the dome-shaped protective component, a wrist restraint strap 4 is provided for fixing the patient's wrist. The wrist restraint strap 4 is preferably made of double-sided Velcro. A buckle 17, used in conjunction with the wrist restraint strap 4, is also installed on the base plate 1. The buckle 17 is a rectangular plate arranged longitudinally on the base plate 1. A through hole for the wrist restraint strap 4 to pass through is provided on the side of the buckle 17. The right end of the wrist restraint strap 4 is fixedly connected to the top surface of the base plate 1, and its left end passes through the buckle 17, then bends upwards and flips over the top surface of the buckle 17 to fit snugly against the top surface of the wrist restraint strap 4, thereby fixing the patient's wrist and preventing the back of the hand from moving due to wrist movement.
[0033] refer to Figure 1-3 as well as Figure 5On the rear side of the dome-shaped protective component and the top of the base plate 1, several longitudinally distributed vertical grooves 14 are provided. A first side groove 12, communicating with the vertical grooves 14, is provided laterally on the rear end face of the base plate 1. A finger sleeve assembly 9 is installed within the vertical grooves 14 and the first side groove 12. The finger sleeve assembly 9 includes several finger sleeves 91 and a rigid sliding plate 92. The finger sleeves 91 are positioned on the top surface of the sliding plate 92. The finger sleeves 91 are arched and made of rubber. The left and right bottom edges of the finger sleeves 91 extend downwards and are fixedly connected to the top of the sliding plate 92. The left and right sides of the finger sleeves 91 are respectively inserted into the corresponding vertical grooves 14. The sliding plate 92 is located within the first side groove 12. In this embodiment, five finger sleeves 91 are provided to facilitate adjustment of the hand's fixed position. After the patient's hand is placed flat on the base plate 1, the finger sleeve assembly 9, located on the rear side of the base plate 1, moves forward, and the finger sleeves 91 are respectively placed onto the patient's four fingers (excluding the thumb) to fix the patient's fingers.
[0034] A second side groove 13, communicating with the first side groove 12, is provided on the left side of the base plate 1. A bolt 19 is installed in the second side groove 13, and a threaded countersunk hole for the bolt 19 to be screwed into is provided on the side of the sliding plate 92. Considering that the finger sleeve assembly 9 may slide in the vertical groove 14 and the first side groove 12, and that the rubber finger sleeve 91 may be inconvenient to move when the finger sleeve assembly 9 is put on the finger, the bolt 19 is added. Firstly, by tightening the bolt 19, the nut on the bolt 19 is pressed tightly against the side wall of the base plate 1, thereby pulling the sliding plate 92 and fixing the finger sleeve assembly 9 in the designated position. Secondly, by moving the bolt 19, the sliding plate 92 can be moved well, thereby smoothly putting the finger sleeve 91 on the patient's finger and fixing the finger.
[0035] To prevent the finger sleeve assembly 9 from coming off, a thin, sheet-like baffle 10 with the same dimensions as the rear end of the base plate 1 is screwed onto the rear end of the base plate 1.
[0036] In addition, a groove 11 is provided at the bottom of the base plate 1, and a through hole for the screw 3 to pass through is provided in the center of the groove 11. The function of the groove 11 is to allow the clamping plate 16 to be recessed into the groove 11 when it is not needed, so that the base plate 1 is flat and can be placed on some tables.
[0037] When using this infusion protection and fixation device, if it is to be fixedly installed on the armrest of a chair or hospital bed, first adjust the gap between the clamp 16 and the base plate 1 to form a certain gap, then place the base plate 1 on the armrest, rotate the screw 3 to drive the clamp 16 to rotate so that its top surface contacts the bottom surface of the armrest, then rotate the nut 2 on the screw 3. After the bottom surface of the nut 2 contacts the top surface of the base plate 1, continue to rotate the nut 2. The top of the screw 3 will move upward without restriction, driving the clamp 16 to cooperate with the base plate 1 to clamp the armrest, thus completing the fixation.
[0038] Then, the dome-shaped protective component is opened, and the patient's hand with the needle inserted is placed flat on the base plate 1. The dome-shaped protective component is then closed, and the infusion tube moves through the clearance groove 52 of the protective cover 5 to one side of the buckle assembly. As described above, the slider 20 of the left flange 53 is engaged with the fixing member 18, so that the gasket layer 6 contacts the back of the hand, completing the fixation of the hand by the dome-shaped protective component. Then, the infusion tube above the protective cover 5 and on the side of the buckle assembly is engaged into the slot of the buckle body 8 to initially fix the infusion tube. The clamping member 7 is then rotated to fix the infusion tube a second time, ensuring that the movement of the needle will not be affected even if the infusion tube is pulled.
[0039] Finally, the wrist restraint strap 4 is tied around the patient's wrist to reduce wrist swaying or swinging, and the finger cot assembly 9 is put on the patient's fingers to complete the protection and fixation.
[0040] It should be understood that all the above embodiments are exemplary and not restrictive. Various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of this application should be within the protection scope of this application.
Claims
1. Infusion protection fixture, characterized in that, Includes a base plate, the top of which is provided with a dome-shaped protective component that can be flipped and covered; The dome-shaped protective component includes a protective cover, an clearance groove on the left side of the protective cover, a buckle assembly at the right end point of the clearance groove and the top of the protective cover, the buckle assembly includes a buckle body, a through-hole extending to the side of the buckle body, a hole in the side wall of the buckle body, and a pressing element inside the hole; the inside of the protective cover is provided with a gasket layer. The left side of the base plate is equipped with a fastener to assist in fixing the dome-shaped protective component.
2. The fixture of claim 1, wherein It also includes a base plate fixing assembly, which is distributed on the left and right sides of the base plate. The base plate fixing assembly includes a vertical and movable screw that passes through the base plate. The bottom of the screw is connected to a clamping plate, and the top of the screw is fitted with a nut.
3. The fixture of claim 1, wherein The protective cover has a right flange on its right side, which is hinged to the top surface of the right side of the base plate.
4. The fixture of claim 1, wherein The hole on the side wall of the buckle is a threaded hole.
5. The fixture of claim 4, wherein The clamping component is a screw.
6. The fixture of claim 1, wherein The left side of the gasket layer has a matching clearance groove.
7. The fixture of claim 1, wherein The protective cover has a left-side flange.
8. The fixture of claim 7, wherein, The top surface of the left flange has a hollowed-out groove, and a slider is installed inside the hollowed-out groove. The top and bottom surfaces of the slider are bent respectively.
9. The fixture of claim 8, wherein, The fixing component is an angle rod, and the slider is movably engaged between the angle rod and the base plate, with the bottom bend of the slider contacting the bottom of the angle rod.