Infusion hand restraint protector
By incorporating vein avoidance grooves on the back of the hand and arm into the hand restraint protection device, combined with adjusting rods and restraint straps, the problems of poor infusion and swelling caused by traditional devices are solved, achieving precise restraint and a comfortable infusion process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHUNDE HOSPITAL SOUTHERN MEDICAL UNIV (THE FIRST PEOPLES HOSPITAL OF SHUNDE FOSHAN)
- Filing Date
- 2025-03-27
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional hand restraint devices cannot precisely control the restraint force during intravenous infusion, leading to poor blood circulation in the hand or swelling at the infusion site. Furthermore, traditional rigid fixation plates affect the smoothness of the infusion.
An infusion hand restraint and protection device was designed, including a hand unit and a forearm unit. It is equipped with vein avoidance grooves on the back of the hand and vein avoidance grooves on the arm. Combined with an adjustment link and restraint strap, it can achieve precise restraint and flexible adjustment of the wrist to avoid compression of the infusion needle.
To ensure smooth infusion, prevent needle displacement, improve comfort and work efficiency, and reduce medical risks.
Smart Images
Figure CN224523736U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of restraint device technology, and in particular to a hand restraint and protection device for intravenous infusion. Background Technology
[0002] In medical practice, when patients with physical illnesses accompanied by symptoms such as excitement, agitation, and delirium, as well as critically ill patients, patients with mental illnesses, and children who require intravenous infusion, we often face problems such as patients not cooperating with treatment and care, and agitation leading to displacement or dislodgement of the infusion needle.
[0003] Traditional hand restraint devices often use straps or rigid fixation plates. While straps can restrict hand movement, they often cannot precisely control the restraint force, and prolonged use may lead to poor blood circulation in the hand. Rigid fixation plates, while providing relatively stable support, often directly compress the veins on the back of the hand or wrist, affecting the smoothness of intravenous infusion and even causing swelling at the infusion site. Utility Model Content
[0004] To overcome at least one of the defects described in the prior art, this invention provides an infusion hand restraint protection device. It can solve the swelling sensation caused by pressure from traditional hand restraint devices and improve patient comfort.
[0005] The technical solution adopted by this utility model to solve its problem is:
[0006] An intravenous infusion hand restraint protection device includes: a hand unit, which is worn on the hand and has a dorsal vein avoidance groove corresponding to the back of the hand, and a wrist support corresponding to the palm; a forearm unit, which is worn on the forearm and has an arm vein avoidance groove corresponding to the back of the arm, and a forearm support corresponding to the front of the arm; an adjusting rod, one end of which is fixed to the wrist support and the other end of which is fixed to the forearm support to adjust the distance between the hand unit and the forearm unit; and a restraint strap, which is disposed on the hand unit and the forearm unit.
[0007] By adopting the above-mentioned design, the hand unit is equipped with a dorsal vein avoidance groove corresponding to the back of the hand, and the forearm unit is equipped with an arm vein avoidance groove corresponding to the back of the arm. This ensures that the location of the infusion needle is not compressed, thereby guaranteeing smooth infusion. Through the cooperation of the wrist support and forearm support, and the adjustment function of the adjusting linkage, the distance between the hand unit and the forearm unit can be precisely controlled, thereby effectively restraining wrist movement and preventing the infusion needle from shifting due to patient agitation. Restraint straps are installed on the hand unit and forearm unit, facilitating quick installation and removal by medical staff and improving work efficiency.
[0008] Furthermore, the adjusting linkage includes: a linkage seat, wherein a first sliding groove and a second sliding groove are arranged in parallel on the linkage seat; a first sliding rod, wherein the first sliding rod is slidably disposed in the first sliding groove and is fixedly connected to the wrist support plate; and a second sliding rod, wherein the second sliding rod is slidably disposed in the second sliding groove and is fixedly connected to the forearm support plate.
[0009] By adopting the above scheme, the free sliding of the first and second sliding rods in the groove allows the spacing between the hand unit and the forearm unit to be flexibly adjusted, thereby adapting to the hand size and infusion needs of different patients.
[0010] Furthermore, multiple rollers are assembled along the length of the first and second slide grooves. The rotation axis of the rollers is consistent with the depth direction of the first and second slide grooves. The circumference of the rollers is provided with a groove. The first and second sliding rods have grooves to accommodate the rollers. The two sides of the grooves are provided with protruding ridges that engage with the grooves.
[0011] By adopting the above scheme, the roller has a groove on its circumference, while the first and second sliding rods have grooves to accommodate the roller. Protrusions matching the grooves are provided on both sides of the grooves, so that when the sliding rods slide within the grooves, the protrusions engage with the grooves of the rollers, forming a stable connection.
[0012] Furthermore, the ends of the first and second chutes are provided with stops for sealing the wheel grooves.
[0013] By adopting the above solution, when the sliding rod slides to the end of the groove, the groove can be sealed to prevent the sliding rod from continuing to slide and detaching from the groove.
[0014] Furthermore, the connecting rod seat is integrally bent into shape, and the openings of the first and second sliding grooves are in opposite directions.
[0015] By adopting the above solution, the integrally bent connecting rod seat can better withstand the force and pressure generated by the sliding rod during the sliding process, thereby ensuring the stability and durability of the entire adjusting rod structure. It also optimizes the sliding path of the sliding rod, making the entire adjusting rod more efficient and reliable.
[0016] Furthermore, a locking element is provided between the roller and the first and second slide grooves, and the outer surface of the locking element is provided with threads.
[0017] By adopting the above solution, the position of the roller is fixed to prevent unnecessary displacement or shaking during the sliding process.
[0018] Furthermore, the height of the first sliding rod is not higher than the depth of the first sliding groove, and the height of the second sliding rod is not higher than the depth of the second sliding groove.
[0019] By adopting the above scheme, the movement of the sliding rod within the groove will be fully supported by the sidewalls of the groove. This design prevents the sliding rod from tilting or wobbling due to uneven force during sliding, thereby improving the stability of the entire adjusting linkage; the depth matching between the sliding rod and the groove also prevents the sliding rod from protruding, avoiding wear and increasing its service life.
[0020] Furthermore, the hand unit is provided with finger holes for extending fingers.
[0021] By adopting the above design, the finger holes allow the patient's fingers to extend naturally, avoiding the pressure and discomfort caused by the hand being completely encased in the device. This design helps alleviate hand fatigue and discomfort during prolonged intravenous infusions. It allows patients to perform a certain degree of finger movement, such as gently bending their fingers or grasping small objects, even when their hands are restrained. This helps patients maintain a degree of autonomy and mobility during infusions.
[0022] Furthermore, a first Velcro strap is provided on the side of the restraint strap facing the hand unit or forearm unit, and a second Velcro strap is provided on the hand unit and forearm unit corresponding to the first Velcro strap.
[0023] By employing the above-described method, the Velcro connection allows for a degree of flexibility, enabling the restraints to adapt to patients with different hand shapes and forearm sizes. Both children and adults can ensure the stability and comfort of the device by adjusting the tightness of the Velcro.
[0024] Furthermore, the wrist rest and forearm rest are made of antibacterial ABS plastic.
[0025] By adopting the above-mentioned solution, the growth of microorganisms such as bacteria and mold can be effectively inhibited, reducing the risk of cross-infection. This ensures that the wrist and forearm supports provide stable support without placing additional burden on the patient. Furthermore, it exhibits excellent corrosion resistance, resisting the erosion of most chemicals, such as disinfectants and cleaning agents.
[0026] In summary, the hand restraint and protection device for intravenous infusion provided by this utility model has the following technical effects:
[0027] 1. The hand unit is equipped with a vein avoidance groove on the back of the hand. This design ensures that the area where the infusion needle is located is not compressed, thereby effectively avoiding the problems of swelling at the infusion site and poor infusion caused by prolonged compression.
[0028] 2. Through the cooperation of the wrist support plate and the forearm support plate, as well as the adjustment function of the adjustment linkage, the distance between the hand unit and the forearm unit can be precisely controlled, achieving effective restraint of wrist movement. This design ensures the stability of the restraint while avoiding the excessive pressure and discomfort that may be caused by traditional straps or rigid fixation plates;
[0029] 3. Restraint straps are installed on the hand and forearm units. This design allows medical staff to quickly and easily install and remove the device, improving work efficiency.
[0030] 4. It can effectively prevent patients from touching or pulling out the infusion needle when they are agitated or unconscious, reducing the medical risks caused by needle displacement or detachment. Attached Figure Description
[0031] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;
[0032] Figure 2 This is a schematic diagram of the rear structure of an embodiment of the present utility model;
[0033] Figure 3 This is a schematic diagram of the adjusting linkage structure according to an embodiment of the present utility model;
[0034] Figure 4 This is a schematic cross-sectional view of the adjusting linkage according to an embodiment of the present invention.
[0035] The meanings of the reference numerals in the attached drawings are as follows: 1. Hand unit; 11. Wrist support plate; 12. Hand vein avoidance groove; 13. Finger hole; 2. Forearm unit; 21. Forearm support plate; 22. Arm vein avoidance groove; 3. Adjusting linkage; 31. Linkage seat; 311. First slide groove; 312. Second slide groove; 32. First sliding rod; 321. Wheel groove; 322. Protrusion; 33. Second sliding rod; 34. Roller; 341. Slot; 4. Restraint strap; 41. Hand restraint strap; 42. Forearm restraint strap; 5. First Velcro; 6. Second Velcro; 7. Locking element. Detailed Implementation
[0036] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described and discussed below with reference to the accompanying drawings. Obviously, what is described here is only a part of the examples of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the protection scope of this invention.
[0037] To facilitate understanding of the embodiments of this utility model, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this utility model.
[0038] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "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 only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0040] See Embodiment 1 of this utility model. Figures 1-4 As shown, an infusion hand restraint protection device is disclosed, including a hand unit 1, a forearm unit 2, an adjusting linkage 3, and a restraint strap 4. The hand unit 1 is worn on the hand and has a hollow, glove-like structure with a soft interior to provide cushioning and comfort. Specifically, the hand unit 1 includes a wrist rest 11, a dorsal hand vein avoidance groove 12, and finger holes 13. The dorsal hand vein avoidance groove 12 exposes the back of the hand, providing a pre-reserved puncture position. The wrist rest 11 is positioned at the palm of the hand unit 1. The forearm unit 2 is worn on the forearm and is similar to an arm sleeve structure. The forearm unit 2 has an arm vein avoidance groove 22 corresponding to the back of the arm. The forearm support plate 21 is positioned on the front of the corresponding arm. One end of the adjusting rod 3 is fixed to the wrist support plate 11, and the other end is fixed to the forearm support plate 21 to adjust the distance between the hand unit 1 and the forearm unit 2. The restraint strap 4 is set on the hand unit 1 and the forearm unit 2. This arrangement ensures that the vein avoidance groove 12 on the back of the hand and the vein avoidance groove 22 on the arm are not compressed, thus guaranteeing smooth infusion. Through the cooperation of the wrist support plate 11 and the forearm support plate 21, and the adjustment function of the adjusting rod 3, the distance between the hand unit 1 and the forearm unit 2 can be precisely controlled, thereby effectively restraining wrist movement and preventing the infusion needle from shifting due to patient agitation. The restraint strap 4, located on the hand unit 1 and the forearm unit 2, facilitates quick installation and removal by medical personnel, improving work efficiency.
[0041] In this embodiment 1, the restraint straps 4 include hand restraint straps 41 and forearm restraint straps 42. The hand restraint straps 41 are provided in one set, consisting of two straps, and are positioned at the wrist of the hand unit 1. The forearm restraint straps 42 are provided in three sets, consisting of two straps, and are positioned at both ends and the middle of the forearm unit 2. In other embodiments, the specific number of restraint straps 4 is not limited.
[0042] Preferably, the wrist rest 11 of the hand unit 1 and the forearm rest 21 of the forearm unit 2 are both injection molded from antibacterial ABS plastic. Optionally, their surfaces are provided with honeycomb-shaped ventilation holes with a diameter of 2mm and a spacing of 5mm to further improve comfort. The dorsal hand vein avoidance groove 12 has a U-shaped opening, and its size can cover the dorsal hand vein area. The finger hole 13 is opened at the front end of the hand unit 1, with a diameter of 20mm, and the edge is covered with a food-grade silicone ring with a thickness of 3mm and a Shore hardness of 30, allowing the finger to pass through, relieving finger discomfort and improving comfort. In some embodiments, the hand unit 1 can also be designed as a split structure, such as the palm rest and finger sleeve being separated and connected by a pin to adapt to different hand shapes. Transparent cover plates can also be provided on the dorsal hand vein avoidance groove 12 and the forearm vein avoidance groove 22 to observe the internal situation while avoiding being touched.
[0043] In one specific embodiment, the adjusting linkage 3 includes a linkage seat 31, a first sliding rod 32, and a second sliding rod 33. The linkage seat 31 is integrally bent into an S-shaped structure by a stamping process, with a first sliding groove 311 and a second sliding groove 312 respectively opened on both sides, with the groove openings facing opposite directions. The first sliding rod 32 slides in the first sliding groove 311 and is fixedly connected to the wrist support plate 11, which can be fixed with bolts. The second sliding rod 33 slides in the second sliding groove 312 and is fixedly connected to the forearm support plate 21, which can also be fixed with bolts. The free sliding of the first sliding rod 32 and the second sliding rod 33 within the sliding grooves allows the spacing between the hand unit 1 and the forearm unit 2 to be flexibly adjusted, thereby adapting to different patients' hand sizes and infusion needs. Multiple rollers 34 are mounted along the inner length of the first slide groove 311 and the second slide groove 312. The rotation axis of the rollers 34 is consistent with the depth direction of the first slide groove 311 and the second slide groove 312. The circumference of the rollers 34 is provided with a groove 341. The first sliding rod 32 and the second sliding rod 33 have a groove 321 for accommodating the rollers 34. The two sides of the groove 321 are provided with protrusions 322 that engage with the groove 341. In this embodiment 1, four sets of rollers 34 are mounted along the inner length of the slide groove. The rollers 34 have a diameter of 6mm and a V-shaped groove 341 with a depth of 1mm on their circumference. The groove 321 of the sliding rod is provided with wedge-shaped protrusions 322 on both sides, which engage with the groove 341 of the rollers 34. The engagement depth on one side is not less than 0.5mm. The rollers 34 are preferably fixed by a locking member 7. The locking member 7 is preferably a threaded knob that, after being screwed in, abuts against the shaft of the rollers 34 with a contact pressure ≥5N. When the wrist rest 11 is pushed, the sliding rod slides along the grooves of the multiple rollers 34, and the protrusion 322 and the slot 341 prevent the sliding rod from derailing.
[0044] Preferably, insertion holes can be provided on the surfaces of the first slide groove 311 and the second slide groove 312. A pin can be inserted into the insertion hole. When the pin is inserted into the axle of the roller 34 at the same time, a sliding fixation effect is achieved, which can prevent the first sliding rod 32 and the second sliding rod 33 from continuing to slide in the first slide groove 311 and the second slide groove 312, thus achieving a preliminary fixation effect. Subsequently, a further tightening effect can be achieved by binding with the constraint strap 4. It can be bound to a fixed handrail or support. When walking is required, only the strap itself needs to be bound.
[0045] To prevent the first sliding rod 32 and the second sliding rod 33 from derailing when they slide to the ends of the first slide groove 311 and the second slide groove 312, stops for blocking the wheel groove 321 are provided at the ends of the first slide groove 311 and the second slide groove 312. This design ensures that when the sliding rod slides to the end of the slide groove, the wheel groove 321 is blocked, preventing the sliding rod from continuing to slide and disengaging from the slide groove.
[0046] In some embodiments, the height of the first sliding rod 32 can be designed to be no higher than the depth of the first slide groove 311, and the height of the second sliding rod 33 can be designed to be no higher than the depth of the second slide groove 312. This arrangement ensures that the movement of the sliding rod within the slide groove is adequately supported by the sidewalls of the slide groove. This design prevents the sliding rod from tilting or wobbling due to uneven force during sliding, thereby improving the stability of the entire adjusting linkage 3. The depth matching between the sliding rod and the slide groove also prevents the sliding rod from protruding, avoiding wear and increasing its service life.
[0047] Optionally, the restraint strap 4 has a first Velcro 5 on the side facing the hand unit 1 or forearm unit 2, and the hand unit 1 and forearm unit 2 have a second Velcro 6 corresponding to the first Velcro 5. Specifically, the hand restraint strap 41 is fixed to both sides of the wrist rest 11, and is made of double-layer high-elastic nylon webbing material with an inner layer of composite medical-grade silicone anti-slip strip, 2mm thick. The second Velcro strip has a wide range, allowing for fine-tuning of its position. The Velcro connection method allows for a certain degree of elasticity, enabling the restraint strap 4 to adapt to patients with different hand shapes and forearm sizes. Whether for children or adults, the stability and comfort of the device can be ensured by adjusting the fit of the Velcro. In other embodiments, the Velcro can be replaced with magnetic snaps or adjustable-length buckles, similar to the buckles on a backpack strap.
[0048] In use, stretch the adjustment link 3 to the maximum distance, place the patient's hand in the hand unit 1, with fingers passing through the finger holes 13, the forearm against the forearm support plate 21, and the vein avoidance groove aligned with the puncture point. Push the wrist support plate 11 to the natural bending angle of the patient's wrist. Then, fix the first sliding rod 32 and the second sliding rod 33 in the positions of the first sliding groove 311 and the second sliding groove 312 by the pin. Then, tighten the hand restraint strap 41 so that the overlap area of the first Velcro 5 is ≥80% for binding. Adjust the position of the forearm restraint strap 42 to avoid the radial artery area, and similarly tighten the first Velcro 5 so that the overlap area is ≥80%. It should be noted that the first Velcro 5 needs to cross the back of the hand vein avoidance groove 12 or the arm vein avoidance groove 22 to fit with the second Velcro 6 on the other side to achieve the binding effect.
[0049] In summary, the hand restraint and protection device for intravenous infusion provided by this utility model has the following technical effects:
[0050] 1. The hand unit 1 is provided with a dorsal vein avoidance groove 12 corresponding to the back of the hand. This design ensures that the part where the infusion needle is located is not compressed, thereby effectively avoiding the problems of swelling of the infusion site and poor infusion caused by prolonged compression.
[0051] 2. Through the cooperation of the wrist support plate 11 and the forearm support plate 21, and the adjustment function of the adjusting linkage 3, the distance between the hand unit 1 and the forearm unit 2 can be precisely controlled, achieving effective restraint of wrist movement. This design ensures the stability of the restraint while avoiding the excessive pressure and discomfort that may be caused by traditional straps or rigid fixation plates;
[0052] 3. Restraint straps 4 are set on the hand unit 1 and forearm unit 2. This design allows medical staff to quickly and easily install and remove the device, improving work efficiency.
[0053] 4. It can effectively prevent patients from touching or pulling out the infusion needle when they are agitated or unconscious, reducing the medical risks caused by needle displacement or detachment.
[0054] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.
Claims
1. A hand restraint and protection device for intravenous infusion, characterized in that, include: Hand unit (1), the hand unit (1) is used to be worn on the hand, and the hand unit (1) is provided with a back vein avoidance groove (12) corresponding to the back of the hand, and the hand unit (1) is provided with a wrist support plate (11) corresponding to the palm. Forearm unit (2), the forearm unit (2) is worn on the forearm, and the forearm unit (2) is provided with an arm vein avoidance groove (22) on the back of the arm, and the forearm unit (2) is provided with a forearm support plate (21) on the front of the arm. Adjusting link (3), one end of which is fixed to the wrist support plate (11) and the other end is fixed to the forearm support plate (21) to adjust the gap between the hand unit (1) and the forearm unit (2); Restraint strap (4) is provided on the hand unit (1) and the forearm unit (2).
2. The hand restraint and protection device for intravenous infusion according to claim 1, characterized in that, The adjusting linkage (3) includes: Linkage seat (31), wherein the linkage seat (31) is provided with a first sliding groove (311) and a second sliding groove (312) in parallel; The first sliding rod (32) is slidably disposed in the first sliding groove (311) and is fixedly connected to the wrist support plate (11). The second sliding rod (33) is slidably disposed in the second sliding groove (312) and is fixedly connected to the forearm support plate (21).
3. The hand restraint and protection device for intravenous infusion according to claim 2, characterized in that, Multiple rollers (34) are mounted along the inner length of the first slide groove (311) and the second slide groove (312). The rotation axis of the rollers (34) is consistent with the depth direction of the first slide groove (311) and the second slide groove (312). The circumference of the rollers (34) is provided with a groove (341). The first sliding rod (32) and the second sliding rod (33) have a groove (321) for accommodating the rollers (34). The two sides of the groove (321) are provided with protrusions (322) that engage with the groove (341).
4. The hand restraint and protection device for intravenous infusion according to claim 3, characterized in that, The ends of the first groove (311) and the second groove (312) are provided with stops for blocking the wheel groove (321).
5. The hand restraint and protection device for intravenous infusion according to claim 2, characterized in that, The connecting rod seat (31) is integrally bent and formed, and the grooves of the first groove (311) and the second groove (312) are in opposite directions.
6. The hand restraint and protection device for intravenous infusion according to claim 3, characterized in that, A locking member (7) is provided between the roller (34) and the first slide groove (311) and the second slide groove (312), and the outer surface of the locking member (7) is provided with threads.
7. The hand restraint and protection device for intravenous infusion according to claim 2, characterized in that, The height of the first sliding rod (32) is not higher than the depth of the first slide groove (311), and the height of the second sliding rod (33) is not higher than the depth of the second slide groove (312).
8. The hand restraint and protection device for intravenous infusion according to claim 1, characterized in that, The hand unit (1) is provided with a finger hole (13) for extending the fingers.
9. The hand restraint and protection device for intravenous infusion according to claim 1, characterized in that, The restraint strap (4) is provided with a first Velcro (5) on the side facing the hand unit (1) or the forearm unit (2), and the hand unit (1) and the forearm unit (2) are provided with a second Velcro (6) corresponding to the first Velcro (5).
10. A hand restraint and protection device for intravenous infusion according to claim 1, characterized in that, The wrist rest (11) and forearm rest (21) are made of antibacterial ABS plastic.