Internal fistula side arm bolster for patient
By introducing a cooling chamber and fixation components into the arm pad on the patient's fistula side, the problems of fixation and breathability were solved, achieving arm stability and cooling effects, and reducing the puncture failure rate and skin complications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING CHANGPING DISTRICT INTEGRATED TRADITIONAL CHINESE & WESTERN MEDICINE HOSPITAL
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-19
AI Technical Summary
Existing patient fistula-side arm pads are difficult to effectively fix the arm, and their lack of breathability leads to skin dampness and heat, increasing the puncture failure rate and the risk of skin complications.
A patient fistula-side arm pad with a cooling chamber and fixation components was designed. It uses a cooling fan for cooling and a fixation block and strap system to stabilize the arm. The design incorporates ventilation holes to improve fixation and breathability.
It effectively stabilizes the arm, reduces the failure rate of punctures, minimizes skin complications, and improves the user experience and puncture efficiency.
Smart Images
Figure CN224251716U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pillow technology, and in particular to a pillow for the arm on the side of a patient's arteriovenous fistula. Background Technology
[0002] Using a pillow to support the arm on the side of the arteriovenous fistula (AVF) is a crucial step in hemodialysis care. By selecting soft, breathable sponges or specialized positioning pads, the arm on the side of the AVF is elevated and stably supported. Its core functions include: preventing thrombosis or stenosis of the blood vessel due to compression or torsion; using gravity to promote vascular filling to facilitate puncture and maintain stable blood flow during dialysis; relieving fatigue and numbness from prolonged arm immobilization; reducing the risk of complications such as hypotension; and delaying vascular intimal hyperplasia and aneurysm formation through daily positioning management. It also strengthens the patient's awareness of AVF protection, extending the lifespan of the AVF by focusing on treatment details, and ensuring dialysis quality and patient safety.
[0003] However, existing arm support pillows for patients with arteriovenous fistulas have the following drawbacks:
[0004] (1) When it is difficult to fix the arm with a bandage, the patient may move the arm due to tension, pain or unconsciousness, which makes it difficult for medical staff to locate the fistula during the puncture, thereby increasing the failure rate of the puncture.
[0005] (2) When the pillow is not breathable and difficult to cool down, the skin of the arm is in a hot and humid environment for a long time, which can easily cause skin complications such as itching, rashes, and prickly heat. This is especially true for people with allergies or those who sweat a lot.
[0006] Therefore, this utility model provides a patient's arm support pillow for the side of the fistula. Utility Model Content
[0007] (a) Technical problems to be solved
[0008] The problem solved by this utility model is to provide a highly practical arm support pillow for patients with arteriovenous fistulas, which solves the problems mentioned in the background art, such as the difficulty in fixing the arm with straps and the lack of breathability and cooling effect of the pillow.
[0009] (II) Technical Solution
[0010] To achieve the above objectives, this utility model is implemented through the following technical solution: a patient's arteriovenous fistula arm pad, including a placement pad, the placement pad having a cooling chamber inside, a fixing block fixedly connected to one side of the placement pad, the number of fixing blocks being four, the surface of the fixing block being provided with fixing components, and a cooling component being provided on one side of the placement pad;
[0011] The fixing assembly includes a first strap fixedly connected to one side of one of the fixing blocks, a sleeve fixedly connected to one side of the first strap, and a second strap provided on one side of the other fixing block. The second strap has a cavity inside, and a pressing block is movably inserted into the surface of the second strap. One side of the pressing block extends into the cavity. A limit block is fixedly connected to the inner top wall of the cavity. There are two limit blocks, and a spring is connected between the two limit blocks.
[0012] The cooling component includes a cooler body fixedly connected to one side of the placement pad. An air inlet pipe is provided on one side of the cooler body, and an air outlet pipe is provided on the other side of the cooler body. One end of the air outlet pipe extends into the interior of the cooling chamber, and the other end of the air outlet pipe is provided with a connecting pipe.
[0013] Optionally, the placement pad has a filling chamber inside, and the filling chamber is filled with filler. The placement pad has a filling chamber inside and is filled with filler. Different filling materials with different properties can be selected according to actual needs.
[0014] Optionally, a zipper body is provided on one side of the placement pad. The zipper body includes a first zipper tooth group and a second zipper tooth group that mesh with each other, as well as a zipper head for driving the zipper tooth group to open and close. With a zipper body on one side of the placement pad, when the filling material becomes deformed or stained after prolonged use, the placement pad can be easily opened by pulling open the zipper head, which drives the meshing first zipper tooth group and the second zipper tooth group to separate, making it convenient and quick to replace the filling material. At the same time, it facilitates deep cleaning of the inside of the placement pad, maintains the hygiene of the pad, avoids the impact of bacteria growth on the patient's health due to the filling material, extends the lifespan of the pad, and reduces the cost of use.
[0015] Optionally, the sleeve has a circular hole on its surface that matches the pressing block. The circular hole on the sleeve surface matches the pressing block, which can accurately guide the pressing block into the sleeve during the process of fixing the arm with the fixing component, ensuring that the pressing block and the limiting block in the second strap cavity are accurately matched, making the fixing operation smoother and more efficient.
[0016] Optionally, the surface of the placement pad has a groove, and the number of grooves is one. The groove on the surface of the placement pad can better fit the shape of the arm, so that the arm fits more closely when placed on the pad, effectively distributing the weight of the arm, reducing local pressure concentration, and providing the patient with a more comfortable placement experience.
[0017] Optionally, a vent hole is provided at the bottom of the groove. The vent hole is circular and is connected to the cooling chamber inside the pad. This allows the cold air generated by the air cooler in the cooling chamber to be distributed more evenly to the surface of the arm, enhancing air circulation and improving the cooling effect.
[0018] (III) Beneficial Effects
[0019] This utility model provides a patient's arm support pillow for the side of an arteriovenous fistula, which has the following beneficial effects:
[0020] 1. The patient's fistula-side arm pad and fixation component have a unique design that can effectively fix the patient's fistula-side arm, preventing the arm from moving due to tension, pain, or unconscious movements. This provides a stable operating environment for medical staff to perform fistula puncture, thereby reducing the puncture failure rate and improving puncture efficiency and accuracy.
[0021] 2. The patient's arm pad on the side of the fistula has a cooling component that can continuously cool the arm. Combined with the design of the ventilation holes, it can effectively prevent the skin of the arm from being in a hot and humid environment for a long time, reducing the occurrence of skin complications such as itching, rashes, and prickly heat. It is especially suitable for patients with allergies or excessive sweating, improving the patient's user experience. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the placement pad structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the second strap structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the spring structure of this utility model;
[0025] Figure 4 This is a schematic diagram of the filling material structure of this utility model.
[0026] In the diagram: 1. Placement pad; 2. Fixing block; 3. Fixing component; 31. First strap; 32. Sleeve; 33. Second strap; 34. Pressing block; 35. Limiting block; 36. Spring; 4. Cooling component; 41. Air cooler body; 42. Air inlet pipe; 43. Air outlet pipe; 44. Connecting pipe; 5. Filler; 6. Zipper body. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0028] Please see Figures 1 to 4 This utility model provides a technical solution: a patient's arm pad pillow with an arteriovenous fistula, including a placement pad 1, a cooling chamber inside the placement pad 1, a fixing block 2 fixedly connected to one side of the placement pad 1, the number of fixing blocks 2 is four, a fixing component 3 is provided on the surface of the fixing block 2, and a cooling component 4 is provided on one side of the placement pad 1.
[0029] The fixing component 3 includes a first strap 31 fixedly connected to one side of one of the fixing blocks 2. The first strap 31 serves as the starting end of the fixing component 3. One end of the first strap 31 is fixedly connected to one of the fixing blocks 2, and the other end is connected to a sleeve 32. Its main function is to provide a connection base for the entire fixing process. The sleeve 32 is fixedly connected to one side of the first strap 31. The sleeve 32 is fixed to the first strap 31 and has a round hole on its surface that matches the pressing block 34. It is one of the key parts for the fixing component 3 to achieve the fastening function. A second strap 33 is provided on one side of the other fixing block 2. The second strap 33 has a cavity inside. The pressing block 34 is movably inserted into the surface of the second strap 33. The pressing block 34 is the core part for the quick fixing and unlocking of the fixing component 3. One side of the pressing block 34 extends into the cavity. A limit block 35 is fixedly connected to the inner top wall of the cavity. There are two limit blocks 35. A spring 36 is connected between the two limit blocks 35.
[0030] The cooling component 4 includes a cooler body 41 fixedly connected to one side of the placement pad 1. An air inlet pipe 42 is provided on one side of the cooler body 41, and an air outlet pipe 43 is provided on the other side of the cooler body 41. One end of the air outlet pipe 43 extends into the interior of the cooling chamber, and the other end of the air outlet pipe 43 is provided with a connecting pipe 44.
[0031] The placement pad 1 has a filling compartment inside, and the filling compartment is filled with filling material 5. The placement pad 1 has a filling compartment inside and is filled with filling material 5. Different filling materials with different properties can be selected according to actual needs.
[0032] A zipper body 6 is provided on one side of the placement pad 1. The zipper body 6 includes a first zipper tooth group and a second zipper tooth group that mesh with each other, as well as a zipper head for driving the zipper tooth group to open and close. When the filling material 5 becomes deformed or stained after prolonged use, the placement pad 1 can be easily opened by pulling open the zipper head, which drives the first zipper tooth group and the second zipper tooth group to separate, making it convenient and quick to replace the filling material 5. At the same time, it is convenient to perform deep cleaning inside the placement pad 1, maintain the hygiene of the pad, avoid the impact of bacteria growth on the patient's health due to the filling material 5, extend the life of the pad, and reduce the cost of use.
[0033] The sleeve 32 has a round hole on its surface, which is compatible with the pressing block 34. The round hole on the surface of the sleeve 32 is compatible with the pressing block 34. During the process of fixing the arm by the fixing component 3, the pressing block 34 can be accurately guided to be inserted into the sleeve 32, ensuring that the pressing block 34 and the limiting block 35 in the cavity of the second strap 33 are accurately matched, making the fixing operation smoother and more efficient.
[0034] The surface of the placement pad 1 has a groove, and there is one groove. The groove on the surface of the placement pad 1 can better fit the shape of the arm, so that the arm fits more closely when placed on the pad, effectively distributing the weight of the arm, reducing local pressure concentration, and providing a more comfortable placement experience for the patient.
[0035] The bottom of the groove has a vent hole, which is circular and connected to the cooling chamber inside the pad 1. This allows the cold air generated by the air cooler 41 inside the cooling chamber to be distributed more evenly to the surface of the arm, enhancing air circulation and improving the cooling effect.
[0036] In this invention, the working steps of the device are as follows:
[0037] First step: When using, place the patient's arm on the fistula side on the placement pad 1, pull the second strap 33 through the sleeve 32, so that the second strap 33 wraps around the arm and is adjusted to a suitable tightness, then press the pressing block 34. The pressing block 34 overcomes the elastic force of the spring 36 and passes through the round hole on the surface of the sleeve 32 into the cavity of the second strap 33. When the pressing block 34 passes through the round hole, the spring 36 returns to its original position and pushes the limiting block 35 to lock and fix the pressing block 34, thereby achieving a stable fixation of the arm;
[0038] The second step: Turn on the air cooler body 41. The air cooler body 41 draws in outside air through the air inlet pipe 42. After internal cooling, the cold air is sent into the connecting pipe 44 through the air outlet pipe 43, and finally into the cooling chamber inside the placement pad 1. The cold air circulates in the cooling chamber and is released through the vents on the surface of the placement pad 1 to cool the arm. At the same time, the filling material 5 in the filling chamber works with the cold air to keep the arm cool and comfortable.
[0039] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.
[0040] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.
[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A patient's arm support pillow for the side of an arteriovenous fistula, comprising a placement pad (1), characterized in that: The placement pad (1) has a cooling chamber inside. A fixing block (2) is fixedly connected to one side of the placement pad (1). There are four fixing blocks (2). A fixing component (3) is provided on the surface of the fixing block (2). A cooling component (4) is provided on one side of the placement pad (1). The fixing component (3) includes a first strap (31) fixedly connected to one side of one of the fixing blocks (2), a sleeve (32) fixedly connected to one side of the first strap (31), and a second strap (33) provided on one side of the other fixing block (2). The second strap (33) has a cavity inside, and a pressing block (34) is movably inserted into the surface of the second strap (33). One side of the pressing block (34) extends into the cavity. A limiting block (35) is fixedly connected to the inner top wall of the cavity. There are two limiting blocks (35), and a spring (36) is connected between the two limiting blocks (35). The cooling component (4) includes a cooler body (41) fixedly connected to one side of the placement pad (1). An air inlet pipe (42) is provided on one side of the cooler body (41), and an air outlet pipe (43) is provided on the other side of the cooler body (41). One end of the air outlet pipe (43) extends into the interior of the cooling chamber, and the other end of the air outlet pipe (43) is provided with a connecting pipe (44).
2. The patient's arm support pillow according to claim 1, characterized in that: The placement pad (1) has a filling chamber inside, and the filling chamber is filled with filler (5).
3. A patient's arm support pillow for the side of an arteriovenous fistula according to claim 1, characterized in that: The placement pad (1) has a zipper body (6) on one side. The zipper body (6) includes a first zipper tooth group and a second zipper tooth group that mesh with each other, and a zipper head for driving the zipper tooth group to open and close.
4. A patient's arm support pillow for the side of an arteriovenous fistula according to claim 1, characterized in that: The sleeve (32) has a circular hole on its surface, which is compatible with the pressing block (34).
5. A patient's arm support pillow for the side of an arteriovenous fistula according to claim 1, characterized in that: The surface of the placement pad (1) is provided with a groove, and the number of grooves is one.
6. A patient's arm support pillow for the side of an arteriovenous fistula according to claim 5, characterized in that: The bottom of the groove has a vent hole, which is circular.