Patient arm fixation device for dialysis

Abstract

The utility model relates to the field of auxiliary medical apparatus for hemodialysis, concretely relates to a patient arm fixing device for dialysis, including support plate, driver and two fixed structures, wherein the support plate is equipped with first clamping groove and two second clamping grooves, is equipped with threaded rod in first clamping groove, is equipped with two sections of thread structure of opposite screw direction on threaded rod, is equipped with positioning rod in second clamping groove, the fixed structure includes support piece and baffle, the bottom of support piece is equipped with first sliding block and two second sliding blocks, is equipped with a threaded hole on first sliding block, is equipped with a through hole on second sliding block, the distribution direction of threaded hole and through hole is same, the side of baffle is connected with the side of support piece through hinge, the other side of baffle is equipped with bent plate, the other side opposite hinge on support piece is equipped with connecting plate, and connecting plate is used for fixing bent plate, the inner side of baffle is equipped with first fastener and second fastener. The utility model's fixed device can adapt to the dialysis of different patients.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary medical devices for hemodialysis, specifically to a patient arm fixation device for dialysis. Background Technology

[0002] Hemodialysis treatment involves using a hemodialysis machine to draw blood from the patient's body to the outside, where it is processed and purified by a dialyzer composed of numerous hollow fibers before being returned to the patient. During dialysis, a vascular access is typically established in the patient's arm. Hemodialysis blood exits through an artery and enters through a vein, utilizing the pressure difference between the artery and vein. However, each hemodialysis session is relatively long, and it is difficult for the patient's arm to remain still during the process. If the patient's arm shifts, it may cause misalignment of the puncture needle in the artery or vein, affecting the dialysis process. Therefore, it is necessary to design an arm fixation device. However, the existing arm fixation devices used in current technology lack flexibility and are difficult to apply uniformly to patients of different body types. Utility Model Content

[0003] To address the aforementioned problems, the main objective of this invention is to provide a patient arm fixation device for dialysis that can be adapted to patients of different body types for dialysis use.

[0004] To achieve the above objectives, this utility model provides a patient arm fixation device for dialysis, comprising a support plate, a driver, and two fixing structures. The support plate has a first slot and two second slots. A threaded rod is provided in the first slot, and the threaded rod has two sections of threaded structure with opposite helical directions. A positioning rod is provided in the second slot. The fixing structures include a support member and a baffle. The bottom of the support member has a first slider and two second sliders. A threaded hole is provided on the first slider, and a through hole is provided on the second slider. The threaded hole and the through hole are distributed in the same direction. One side of the baffle is connected to one side of the support member by a hinge, and the other side of the baffle has a bent plate. A connecting plate is provided on the other side of the support member opposite to the hinge. The connecting plate is used to fix the bent plate. The inner side of the baffle has a first locking element and a second locking element.

[0005] In other embodiments, heating wires are distributed inside the first card, a power supply device is provided on the outer side of the baffle, and wire holes are provided on the baffle and the first card. The heating wires are electrically connected to the power supply device through wires distributed in the wire holes.

[0006] In other embodiments, the connecting plate has a through groove in the middle, the bent plate is located in the through groove, several small holes are vertically distributed in the middle of the bent plate, the connecting plate has a small hole, and the support member has a positioning hole.

[0007] In other embodiments, a bolt is also included, the inner end of which passes through a small hole on the connecting plate and any small hole on the bending plate from the outside to the inside, and then is located in the positioning hole.

[0008] In other embodiments, the driver is fixed to one side of the support plate, and either end of the threaded rod passes through the support plate and is connected to the output end of the driver.

[0009] In other embodiments, the inner surface of the support member is provided with a cushioning pad.

[0010] In other embodiments, a support plate and several elastic members are provided between the buffer pad and the support member. The buffer pad is glued and fixed to the upper end surface of the support plate, and one end of the elastic member is hinged to the lower end surface of the support plate, and the other end is hinged to the support member.

[0011] The beneficial effects of this utility model through the above technical solution include:

[0012] (1) The dialysis patient arm fixation device of this utility model is provided with a support plate, and two fixing structures are provided on the support plate. The distance between the two fixing structures can be adjusted to accommodate the different lengths of arms of patients of different body types.

[0013] (2) In addition, the circular locking structure formed by the support and the baffle in the fixing structure of the fixing device of this utility model can also be adjusted in size to accommodate the fixing of arms of different body types and different thicknesses.

[0014] (3) Furthermore, the fixing device of this utility model can fix the position of the two blood catheters during use, and the first clamp used to fix the venous tube can increase the temperature of the dialysis blood in the venous tube to be close to the temperature of the human body, so as to improve the patient's comfort. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a schematic diagram of the patient arm fixation device for dialysis according to this utility model.

[0017] Figure 2 This is a schematic diagram of the fixing structure of the dialysis patient arm fixation device of this utility model.

[0018] Figure 3 This is a partial structural schematic diagram of another embodiment of the patient arm fixation device for dialysis according to this utility model.

[0019] Explanation of reference numerals in the attached figures

[0020] 1. Support plate; 11. First slot; 12. Second slot; 13. Threaded rod; 14. Positioning rod; 2. Fixing structure; 21. Support component; 211. First slider; 212. Second slider; 22. Baffle; 23. Hinge; 24. Bend plate; 25. Connecting plate; 26. First clamping component; 261. Heating wire; 27. Second clamping component; 28. Small hole; 3. Driver; 4. Bolt; 5. Support plate; 6. Elastic component; 7. Power supply device. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] like Figures 1 to 3 As shown, the dialysis patient arm fixation device of this utility model includes a support plate 1, two fixing structures 2, and a driver 3. The support plate 1 has a first slot 11 and two second slots 12, which are located on both sides of the first slot 11. A threaded rod 13 is provided in the first slot 11, and the threaded rod 13 has two sections of threaded structure with opposite helical directions. A positioning rod 14 is provided in the second slot 12. In addition, the driver 3 is fixed to one side of the support plate 1. Any end of the threaded rod 13 passes through the support plate 1 and is connected to the output end of the driver 3. The threaded rod 13 is rotatably installed in the first slot 11. Therefore, after the driver 3 is started, the threaded rod 13 can be driven to rotate in a certain direction in the first slot 11.

[0023] In addition, the fixing structure 2 of this utility model is provided with a support member 21 and a baffle 22. The bottom of the support member 21 is provided with a first slider 211 and two second sliders 212. Similarly, the two second sliders 212 are located on both sides of the first slider 211. A threaded hole (not shown in the figure) is provided on the first slider 211, and a through hole (not shown in the figure) is provided on the second slider 212. The threaded hole and the through hole are distributed in the same direction. The threaded rod 13 is sleeved in the threaded hole of the first slider 211, and the two positioning rods 14 are located in the through holes of their corresponding second sliders 212. Therefore, as the driver 3 drives the threaded rod 13 to rotate in a certain direction, the support members 21 of the two fixing structures 2 move in opposite directions, thereby adjusting the distance between the two fixing structures 2 to adapt to the fixation of the arms of patients of different body types.

[0024] Furthermore, one side of the baffle 22 is connected to one side of the support member 21 via a hinge 23. The other side of the baffle 22 is provided with a bent plate 24. On the other side of the support member 21 opposite to the hinge 23, a connecting plate 25 is provided. The connecting plate 25 is used to fix the bent plate 24. Specifically, the connecting plate 25 has a through groove in the middle (not shown in the figure), the bent plate 24 is located in the through groove, and several small holes 28 are vertically distributed in the middle of the bent plate 24. The connecting plate 25 has one small hole 28, and the support member 21 has a positioning hole at a position corresponding to the connecting plate 25. The new type also includes a bolt 4. During the use of the fixing structure 2, after the patient's arm is placed on the upper end face of the support 21, the bent plate 24 on the baffle 22 is fastened into the through groove of the connecting plate 25. Then, the bolt 4 is used to fix it in the small hole 28 on the bent plate 24 corresponding to the appropriate diameter. The inner end of the bolt 4 passes through the small hole 28 on the connecting plate 25 and any small hole 28 on the bent plate 24 from the outside to the inside and is located in the positioning hole. Since the inner wall of the small hole 28 on the connecting plate 25 is also threaded, the bolt 4 can be fixed.

[0025] Please continue reading. Figure 1 and Figure 3 As shown, the inner side of the baffle 22 of this utility model is provided with a first locking member 26 and a second locking member 27. The heating wire 261 is distributed inside the first locking member 26, and the outer side of the baffle 22 is provided with a power supply device 7. The baffle 22 and the first locking member 26 are provided with wire holes. The heating wire 261 is electrically connected to the power supply device 7 through the wires distributed in the wire holes. The first locking member 26 can be used to heat the catheter of the blood after dialysis during the dialysis process to raise its temperature to body temperature and improve patient comfort.

[0026] In other embodiments, the inner side of the support member 21 is provided with a cushioning pad, which can prevent discomfort during the fixation of the patient's arm. In other embodiments, a support plate 5 and several elastic elements 6 can also be provided between the cushioning pad and the support member 21. The elastic elements 6 can be springs. The cushioning pad is glued and fixed to the upper end surface of the support plate 5. One end of the elastic element 6 is hinged to the lower end surface of the support plate 5, and the other end is hinged to the support member 21. When the arm is fixed, the cooperation between the support plate 5 and the elastic elements 6 can also relieve the discomfort caused by the patient's long-term fixed posture.

[0027] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A patient arm fixation device for dialysis, characterized in that, include: Support plate (1), the support plate (1) is provided with a first slot (11) and two second slots (12), the first slot (11) is provided with a threaded rod (13), the threaded rod (13) is provided with two threaded structures with opposite spiral directions located at both ends, and the second slot (12) is provided with a positioning rod (14). Two fixed structures (2) are provided. The fixed structure (2) includes a support member (21) and a baffle (22). The bottom of the support member (21) is provided with a first slider (211) and two second sliders (212). The first slider (211) is provided with a threaded hole and the second slider (212) is provided with a through hole. The threaded hole and the through hole are distributed in the same direction. One side of the baffle (22) is connected to one side of the support member (21) through a hinge (23). The other side of the baffle (22) is provided with a bent plate (24). The other side of the support member (21) opposite to the hinge (23) is provided with a connecting plate (25). The connecting plate (25) is used to fix the bent plate (24). The inner side of the baffle (22) is provided with a first clip (26) and a second clip (27). Driver (3).

2. The patient arm fixation device for dialysis according to claim 1, characterized in that, The first card (26) has heating wires (261) distributed inside, and the outer side of the baffle (22) is provided with a power supply device. The baffle (22) and the first card (26) are provided with wire holes, and the heating wires (261) are electrically connected to the power supply device through wires distributed in the wire holes.

3. The patient arm fixation device for dialysis according to claim 1, characterized in that, The connecting plate (25) has a through groove in the middle, the bent plate (24) is located in the through groove, the bent plate (24) has several small holes (28) vertically distributed in the middle, the connecting plate (25) has a small hole (28), and the support member (21) has a positioning hole.

4. The patient arm fixation device for dialysis according to claim 3, characterized in that, It also includes a bolt (4), the inner end of which passes through the small hole (28) on the connecting plate (25) and any one of the small holes (28) on the bent plate (24) from the outside to the inside and is located in the positioning hole.

5. The patient arm fixation device for dialysis according to claim 1, characterized in that, The driver (3) is fixed to one side of the support plate (1), and any end of the threaded rod (13) passes through the support plate (1) and is connected to the output end of the driver (3).

6. The patient arm fixation device for dialysis according to claim 1, characterized in that, The inner side of the support member (21) is provided with a buffer pad.

7. The dialysis patient arm fixation device according to claim 6, characterized in that, A support plate (5) and several elastic members (6) are provided between the buffer pad and the support member (21). The buffer pad is pasted and fixed on the upper end surface of the support plate (5). One end of the elastic member (6) is hinged to the lower end surface of the support plate (5), and the other end is hinged to the support member (21).

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