Combined protection device for hemodialysis

Abstract

The invention discloses a combined protection device for hemodialysis, and relates to the technical field of hemodialysis, the combined protection device is characterized by comprising a base and an upper cover body, the bottom of the base is fixedly connected with an electric telescopic rod, the electric telescopic rod is vertically arranged, the upper cover body is hinged to the base, the base and the upper cover body are both arc-shaped, and the upper cover body is fixedly connected with the base. The cold compress device comprises a base and further comprises a supporting seat and a cold compress assembly, the supporting seat is fixedly connected to the bottom of the base, a driving mechanism is arranged on the inner side wall of the base, and the driving mechanism is used for driving a cold compress mechanism to move horizontally; the cold compress assembly comprises a condensing agent loading box, and the condensing agent loading box is connected to the driving mechanism in a sliding mode. The cold compress device has the advantages that the cold compress time of the cold compress bag can be adjusted according to the red and swollen degree of the skin of a patient, the cold compress bag is prevented from being replaced, meanwhile, the patient is prevented from holding the cold compress bag through the hand, and convenience is brought to the patient and medical staff.

Description

Technical Field

[0001] The present invention relates to the technical field of hemodialysis, and more particularly to a combined protection device for hemodialysis. Background Art

[0002] Hemodialysis, also known as hemodialysis, is commonly known as artificial kidney or dialysis. It is a type of blood purification technology that uses the principle of a semipermeable membrane to remove various harmful and redundant metabolic wastes and excess electrolytes in the fluid out of the body through diffusion and convection, thereby purifying the blood. It can also correct the water, electrolyte and acid-base balance.

[0003] The invention patent with Chinese patent announcement number: CN113975033 A discloses a combined protection device for hemodialysis, which includes a lower card seat and an upper card seat arranged above the lower card seat, and the lower card seat and the upper card seat are formed with an arc groove for inserting an arm on the opposite side, and the left and right sides of the lower card seat are fixedly installed with fixed blocks, and the tops of the two fixed blocks are fixedly installed with fixed rods, and the two fixed rods are respectively inserted into the inside of the two plug-in blocks, and the two plug-in blocks are respectively fixedly installed on the left and right sides of the upper card seat.

[0004] Although this combined protective device for hemodialysis fixes the arm through the upper and lower brackets, maintaining a posture for a long time may cause arm soreness, at this time the arm can be directly moved horizontally to adjust the position of the arm. When the arm is moved horizontally, the arm drives the pumping rod in the pumping cylinder through the upper and lower brackets and the bottom cabinet, so the position can be adjusted very conveniently, so that the arm is in a comfortable position, which is more convenient for hemodialysis.

[0005] However, when the puncture site on the patient's arm becomes red and swollen, after the medical staff changes the puncture site, in order to reduce the discomfort of the patient's red and swollen area, it is usually necessary to apply cold compresses with ice bags or refrigerants. During the cold compress process, the protective device needs to be opened. At the same time, to prevent the ice bag from slipping, the patient's other hand is required to support the ice bag, which brings inconvenience to the patient. Moreover, since the patient's hemodialysis time is too long, during the cold compress process, the medical staff needs to replace the ice bag or refrigerant on the patient's cold compress area, which brings inconvenience to the medical staff. Summary of the invention

[0006] In view of the shortcomings of the prior art, the object of the present invention is to provide a combined protection device for hemodialysis.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A combined protective device for hemodialysis, comprising a base and an upper cover, wherein the bottom of the base is fixedly connected to an electric telescopic rod, the electric telescopic rod is vertically arranged, the upper cover is hinged on the base, and both the base and the upper cover are arc-shaped, and further comprising: a support seat and a cold compress assembly, the support seat is fixedly connected to the bottom of the base, and a driving mechanism is arranged on the inner side wall of the base, and the driving mechanism is used to drive the cold compress mechanism to move horizontally;

[0009] The cold compress assembly comprises:

[0010] a condensing agent loading box, wherein the condensing agent loading box is slidably connected to the driving mechanism;

[0011] A rotating plate, the rotating plate is arranged on the driving mechanism, a cold compress bag is sleeved on the rotating plate, and the cold compress bag cooperates with the condensing agent loading box;

[0012] A micro pump is fixedly connected to the bottom of the condensing agent loading box, and an output end of the micro pump is fixedly connected to a delivery pipeline, which is communicated with a cold compress bag.

[0013] Preferably, the ends of the base and the upper cover are both open, and one end of the base and the upper cover is fixedly connected with a baffle, the baffle is semicircular, and the baffle on the base matches the baffle on the upper cover;

[0014] The base and the other end of the upper cover body are fixedly connected with an elastic band, and arc grooves are opened on the two elastic bands. The ends of the two arc grooves are in contact with each other and are circular. The contacting ends of the two elastic bands are respectively fixedly connected with a magic hook and a magic cotton patch, and the two elastic bands are adhered by the magic hook and the magic cotton patch.

[0015] Preferably, a connecting plate is fixedly connected to the lower surface of the support seat, and the lower end of the connecting plate is fixedly connected to the bottom of the base;

[0016] One end of the connecting plate close to the elastic band is rotatably connected to a bearing plate, and one end of the bearing plate away from the connecting plate is rotatably connected to at least two bearing rods;

[0017] A first servo motor is fixedly connected to the connecting plate, and an output shaft of the first servo motor is drivingly connected to the bearing plate;

[0018] A second servo motor is fixedly connected to the side wall of the bearing plate, and an output shaft of the second servo motor is drivingly connected to the bearing rod.

[0019] Preferably, the driving mechanism comprises:

[0020] A support plate, the support plate is fixedly connected to the inner wall of the base, and the condensing agent loading box is slidably connected to the support plate;

[0021] A lead screw, both ends of the support plate are fixedly connected to a fixed plate, and the end of the lead screw is rotatably connected to the fixed plate;

[0022] a third servo motor, wherein the third servo motor is fixedly connected to the fixed plate, and an output shaft of the third servo motor passes through a side wall of the fixed plate and is fixedly connected to an end of the lead screw;

[0023] A moving ring is threadedly connected to the lead screw, and the rotating plate is rotatably connected to the moving ring.

[0024] Preferably, a liquid inlet pipe and a liquid outlet pipe are fixedly connected to the outer side wall of the condensate loading box, and the liquid outlet pipe is located on the upper side of the liquid inlet pipe;

[0025] The support plate is provided with a strip through hole for accommodating a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are slidably connected in the strip through hole, and the liquid inlet pipe and the liquid outlet pipe are connected to the cold compress bag.

[0026] Preferably, the lower end of the cold compress bag is fixedly connected to the side wall of the liquid inlet pipe, and the lower end of the cold compress bag is connected to the liquid inlet pipe, and the upper end of the delivery pipe passes through the side wall of the condensing agent loading box and is connected to the liquid inlet pipe;

[0027] The upper end of the cold compress bag is fixedly connected to the side wall of the liquid outlet pipe, and the cold compress bag is communicated with the liquid outlet pipe. At least two drainage pipes are fixedly connected to the side wall of the liquid outlet pipe, and the ends of the drainage pipes pass through the side wall of the refrigerant loading box and extend to the interior of the refrigerant loading box.

[0028] Preferably, at least two liquid guide plates are fixedly connected to the inner side wall of the refrigerant loading box, the plurality of liquid guide plates are arranged obliquely, and the inclination directions of the two upper and lower adjacent liquid guide plates are opposite, and the lower end of the liquid guide plate is provided with a liquid outlet, and the plurality of liquid guide plates are located between the delivery pipe and the discharge pipe;

[0029] At least two cooling pipes are fixedly connected to the bottom of the refrigerant loading box, the upper ends of the cooling pipes pass through the liquid guide plate and the top of the refrigerant loading box, and the upper end surfaces of the cooling pipes are flush with the upper end surface of the refrigerant loading box, and the lower end surfaces of the cooling pipes are flush with the lower end surface of the refrigerant loading box.

[0030] Preferably, a sliding block is fixedly connected to the side wall of the moving ring, a strip-shaped sliding groove is provided on the side wall of the supporting plate, and the sliding block is slidably connected in the strip-shaped sliding groove;

[0031] The movable ring is rotatably connected with a rotating ring, and one end of the rotating plate is fixedly connected to the rotating ring.

[0032] Preferably, a fourth servo motor is fixedly connected to the lower surface of the sliding block, a gear is fixedly connected to the output shaft of the fourth servo motor, an arc-shaped notch is opened on the side wall of the rotating ring, a plurality of meshing teeth are fixedly connected to the side wall of the arc-shaped notch, and the meshing teeth are meshed with the gear.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. In the present invention, the output shaft of the third servo motor drives the lead screw to rotate, and the lead screw drives the moving ring to move horizontally through the cooperation of the thread and the strip slide groove. When the moving ring moves to the red and swollen part of the patient's arm, the fourth servo motor is turned on, and the output shaft of the fourth servo motor drives the gear to rotate. During the rotation of the gear, the gear meshes with the meshing teeth and drives the rotating ring to rotate, so that the upper end of the rotating plate drives the cold compress bag to rotate downward. When the rotating plate is in a horizontal state, the cold compress bag is flattened downward on the red and swollen part of the patient's arm, and the micro pump is started. The micro pump transports the condensing agent through the delivery pipe to the liquid inlet pipe, and the condensing agent flows into the cold compress bag through the through hole on the side wall of the liquid inlet pipe. During the flow of the condensing agent, the heat of the red and swollen part of the patient's arm is taken away, thereby achieving the purpose of cold compressing the red and swollen part of the patient's arm and reducing the discomfort of the red and swollen part of the patient's arm.

[0035] 2. In the present invention, the heat in the refrigerant is dissipated to the outside through the cooling tube, thereby increasing the cooling speed of the refrigerant. When the cooled refrigerant flows downward through the liquid outlet to the bottom of the refrigerant loading box, the micro pump continues to transport the refrigerant to the cold compress bag, thereby achieving the recycling of the refrigerant. At the same time, the cold compress time of the cold compress bag can be adjusted according to the degree of redness and swelling of the patient's skin, avoiding the replacement of the cold compress bag and also avoiding the patient holding the condensation bag with his hands, which brings convenience to the patients and medical staff.

[0036] 3. In the present invention, the output shaft of the first servo motor drives the free end of the supporting plate to rotate upward, so that the supporting plate drives the palm of the patient to bend upward. When the rotation angle of the supporting plate is greater than 10° and less than 90°, the first servo motor drives the supporting plate to rotate in the opposite direction, thereby realizing the stretching and bending of the patient's hand, promoting blood circulation in the patient's hand, and avoiding numbness of the patient's hand due to too long a time of hemodialysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 The present invention provides a schematic diagram of the overall structure of a combined protection device for hemodialysis;

[0038] Figure 2 The present invention provides a schematic diagram of the unfolded structure of a combined protection device for hemodialysis;

[0039] Figure 3 The present invention provides a schematic diagram of the connection structure between a support seat and a bearing rod in a combined protection device for hemodialysis;

[0040] Figure 4 The present invention proposes a schematic diagram of the connection structure between the condensate loading box and the driving mechanism in a combined protection device for hemodialysis Figure 1 ;

[0041] Figure 5 The present invention proposes a schematic diagram of the connection structure between the condensate loading box and the driving mechanism in a combined protection device for hemodialysis Figure 2 ;

[0042] Figure 6 The present invention provides a schematic diagram of a partial connection structure between a condensing agent loading box and a driving mechanism in a combined protection device for hemodialysis;

[0043] Figure 7 The present invention provides a schematic diagram of a partial connection structure of a condensing agent loading box and a rotating plate in a combined protection device for hemodialysis;

[0044] Figure 8 The present invention provides a schematic diagram of a partial connection structure of a cold compress bag and a rotating plate in a combined protection device for hemodialysis;

[0045] Fig. 9 The present invention provides a bottom view of a rotating ring and a moving ring in a combined protection device for hemodialysis.

[0046] 1. Base; 2. Upper cover; 3. Electric telescopic rod; 4. Support seat; 5. Coolant loading box; 6. Rotating plate; 7. Cold pack; 8. Micro pump; 9. Delivery pipeline; 10. Baffle; 11. Elastic band; 12. Arc groove; 13. Magic hook; 14. Magic cotton patch; 15. Connecting plate; 16. Loading plate; 17. Loading rod; 18. First servo motor; 19. Second servo motor; 20. Support plate; 21. Lead screw; 22. Fixed plate; 23. Third servo motor; 24. Moving ring; 25. Liquid inlet pipe; 26. Liquid outlet pipe; 27. Strip through hole; 28. Liquid discharge pipe; 29. ​​Liquid guide plate; 30. Cooling pipe; 31. Sliding block; 32. Strip slide groove; 33. Rotating ring; 34. Fourth servo motor; 35. Gear; 36. Arc notch; 37. Meshing teeth; 38. Liquid outlet; 39. Observation plate. DETAILED DESCRIPTION

[0047] Reference Figures 1 to 9 .

[0048] This embodiment further illustrates a combined protection device for hemodialysis proposed by the present invention.

[0049] A combined protective device for hemodialysis includes a base 1 and an upper cover 2. The bottom of the base 1 is fixedly connected to an electric telescopic rod 3, which is vertically arranged. The upper cover 2 is hinged on the base 1, and both the base 1 and the upper cover 2 are arc-shaped. It also includes: a support seat 4 and a cold compress assembly. The support seat 4 is fixedly connected to the bottom of the base 1. A driving mechanism is arranged on the inner side wall of the base 1, and the driving mechanism is used to drive the cold compress mechanism to move horizontally.

[0050] The cold compress assembly comprises a condensing agent loading box 5, which is slidably connected to the driving mechanism.

[0051] The rotating plate 6 is arranged on the driving mechanism, and a cold compress bag 7 is sleeved on the rotating plate 6. The cold compress bag 7 cooperates with the refrigerant loading box 5. The refrigerant loading box 5 is used to load the refrigerant. Since the cold compress bag 7 is connected with the refrigerant loading box 5, the refrigerant flows into the cold compress bag 7. When the patient develops redness and swelling at the hemodialysis site during hemodialysis, the cold compress bag 7 is used to apply cold compress to the red and swollen site of the patient, thereby achieving the purpose of alleviating the symptoms.

[0052] The micro pump 8 is fixedly connected to the bottom of the refrigerant loading box 5. The output end of the micro pump 8 is fixedly connected with a delivery pipe 9, and the delivery pipe 9 is connected to the cold compress bag 7. The micro pump 8 is a medical micro pump, which is convenient for the recycling of the refrigerant.

[0053] The ends of the base 1 and the upper cover body 2 are both open, and one end of the base 1 and the upper cover body 2 are fixedly connected with a baffle 10, the baffle 10 is semicircular, and the baffle 10 on the base 1 cooperates with the baffle 10 on the upper cover body 2, and an arc-shaped through hole is opened on the top of the upper cover body 2, and an observation plate 39 is fixedly connected to the side wall of the arc-shaped through hole. The material of the observation plate 39 is transparent material, which is convenient for medical staff and patients to observe the patient's hemodialysis site through the observation plate 39. When adverse reactions occur in the patient's hemodialysis site, it is convenient for the patient and medical staff to discover them in time.

[0054] The other end of the base 1 and the upper cover body 2 is fixedly connected with an elastic band 11, and an arc groove 12 is opened on the two elastic bands 11, and the ends of the two arc grooves 12 are in contact with each other in a circular shape. The contacting ends of the two elastic bands 11 are respectively fixedly connected with a magic hook 13 and a magic cotton patch 14, and the two elastic bands 11 are adhered to each other by the magic hook 13 and the magic cotton patch 14. When the patient places his arm on the support seat 4, the opposite ends of the two elastic bands 11 are adhered to each other by the magic hook 13 and the magic cotton patch 14. At this time, the patient's arm is located in the two arc grooves 12, that is, in the circular through hole formed by the ends of the upper and lower arc grooves 12, so that the patient's arm fits with the side wall of the arc groove 12, so that the end of the base 1 and the upper cover body 2 is in a closed state, and in winter, the chamber formed between the base 1 and the upper cover body 2 can achieve a heat preservation effect, thereby reducing the discomfort of the patient when undergoing hemodialysis in winter.

[0055] A connecting plate 15 is fixedly connected to the lower surface of the supporting seat 4 , and the lower end of the connecting plate 15 is fixedly connected to the bottom of the base 1 .

[0056] One end of the connecting plate 15 close to the elastic band 11 is rotatably connected to a supporting plate 16, and one end of the supporting plate 16 away from the connecting plate 15 is rotatably connected to at least two supporting rods 17. The longitudinal section of the supporting rod 17 is rectangular, and straps are fixedly connected to the supporting rod 17 and the supporting plate 16. The patient's hand passes through the straps and is placed horizontally on the supporting plate 16, and the patient's finger area is located on the supporting rod 17.

[0057] A first servo motor 18 is fixedly connected to the connecting plate 15, and an output shaft of the first servo motor 18 is transmission-connected to the supporting plate 16. A U-shaped plate is fixedly connected to the side wall of the connecting plate 15, and a rotating shaft is fixedly connected to the supporting plate 16. The rotating shaft is rotatably connected to the side wall opposite to the U-shaped plate, and the first servo motor 18 is fixedly connected to the U-shaped plate, and the output shaft of the first servo motor 18 passes through the side wall of the U-shaped plate and is fixedly connected to the end of the rotating shaft.

[0058] A second servo motor 19 is fixedly connected to the side wall of the supporting plate 16, and the output shaft of the second servo motor 19 is transmission-connected to the supporting rod 17. A plurality of grooves are provided on the supporting plate 16, and the top and bottom of the grooves are both open. A rotating shaft is fixedly connected to the supporting rod 17, and the end of the rotating shaft is rotationally connected to the side wall opposite to the groove. The patient's hand passes through the strap and is horizontally placed on the supporting plate 16, and the patient's finger part is located on the supporting rod 17. When the second servo motor 19 drives the supporting rod 17 to rotate upward, the supporting rod 17 drives the patient's finger part to bend upward. When the first servo motor 18 drives the supporting plate 16 to rotate, the supporting plate 16 drives the patient's palm part to bend upward, thereby improving the mobility of the patient's hand, promoting blood circulation in the patient's hand, and avoiding numbness of the patient's hand when the patient undergoes hemodialysis for a long time.

[0059] The driving mechanism comprises a support plate 20 , the support plate 20 is fixedly connected to the inner wall of the base 1 , and the refrigerant loading box 5 is slidably connected to the support plate 20 .

[0060] The two ends of the lead screw 21 and the support plate 20 are fixedly connected to the fixing plate 22 , and the end of the lead screw 21 is rotatably connected to the fixing plate 22 .

[0061] The third servo motor 23 is fixedly connected to the fixing plate 22 , and the output shaft of the third servo motor 23 passes through the side wall of the fixing plate 22 and is fixedly connected to the end of the lead screw 21 .

[0062] The moving ring 24 is threadedly connected to the lead screw 21, and the rotating plate 6 is rotatably connected to the moving ring 24. A nut is fixedly connected to the inner wall of the moving ring 24, and the nut is threadedly connected to the lead screw 21. The moving ring 24 is driven to move horizontally through the restriction of the thread on the lead screw 21, thereby driving the rotating plate 6 to move horizontally.

[0063] A liquid inlet pipe 25 and a liquid outlet pipe 26 are fixedly connected to the outer side wall of the condensing agent loading box 5 , and the liquid outlet pipe 26 is located on the upper side of the liquid inlet pipe 25 .

[0064] The support plate 20 is provided with a strip through hole 27 for accommodating the liquid inlet pipe 25 and the liquid outlet pipe 26. The liquid inlet pipe 25 and the liquid outlet pipe 26 are slidably connected in the strip through hole 27, and the liquid inlet pipe 25 and the liquid outlet pipe 26 are connected to the cold compress bag 7. Through holes are provided on the side walls of the liquid inlet pipe 25 and the liquid outlet pipe 26, and the liquid inlet pipe 25 and the liquid outlet pipe 26 are connected to the cold compress bag 7 through the through holes.

[0065] The lower end of the cold compress bag 7 is fixedly connected to the side wall of the liquid inlet pipe 25 , and the lower end of the cold compress bag 7 is communicated with the liquid inlet pipe 25 , and the upper end of the delivery pipe 9 passes through the side wall of the refrigerant loading box 5 and is connected to the liquid inlet pipe 25 .

[0066] The upper end of the cold compress bag 7 is fixedly connected to the side wall of the liquid outlet pipe 26, and the cold compress bag 7 is communicated with the liquid outlet pipe 26. At least two drainage pipes 28 are fixedly connected to the side wall of the liquid outlet pipe 26. The ends of the drainage pipes 28 pass through the side wall of the refrigerant loading box 5 and extend to the interior of the refrigerant loading box 5.

[0067] At least two liquid guide plates 29 are fixedly connected to the inner wall of the condensate loading box 5. The multiple liquid guide plates 29 are arranged at an angle, and the inclination directions of the upper and lower adjacent liquid guide plates 29 are opposite. A liquid outlet 38 is opened at the lower end of the liquid guide plate 29. The multiple liquid guide plates 29 are located between the delivery pipe 9 and the discharge pipe 28.

[0068] At least two cooling pipes 30 are fixedly connected to the bottom of the refrigerant loading box 5. The upper ends of the cooling pipes 30 pass through the liquid guide plate 29 and the top of the refrigerant loading box 5, and the upper end surfaces of the cooling pipes 30 are flush with the upper end surfaces of the refrigerant loading box 5, and the lower end surfaces of the cooling pipes 30 are flush with the lower end surfaces of the refrigerant loading box 5.

[0069] A sliding block 31 is fixedly connected to the side wall of the moving ring 24 , and a strip-shaped sliding groove 32 is opened on the side wall of the supporting plate 20 , and the sliding block 31 is slidably connected in the strip-shaped sliding groove 32 .

[0070] A rotating ring 33 is rotatably connected to the moving ring 24 , and one end of the rotating plate 6 is fixedly connected to the rotating ring 33 .

[0071] A fourth servo motor 34 is fixedly connected to the lower surface of the sliding block 31 , a gear 35 is fixedly connected to the output shaft of the fourth servo motor 34 , an arc-shaped notch 36 is opened on the side wall of the rotating ring 33 , a plurality of meshing teeth 37 are fixedly connected to the side wall of the arc-shaped notch 36 , and the meshing teeth 37 mesh with the gear 35 .

[0072] Working principle: When a patient is undergoing hemodialysis, the arm undergoing hemodialysis is placed horizontally on the support seat 4, and the patient's hand is located on the supporting plate 16 and fixed to the supporting plate 16 by a strap, while the patient's finger part is located on the supporting rod 17 and fixed to the supporting rod 17 by a strap.

[0073] When the medical staff punctures the patient's arm and starts hemodialysis, the medical staff rotates the upper cover 2 upwards and rotates the free end of the upper cover 2 to the upper side of the base 1 and contacts one end of the base 1. At this time, the upper cover 2 covers the base 1, and the upper cover 2 and the base 1 are only cylindrical. Since the upper cover 2 and one end of the base 1 are both provided with baffles 10, when the upper cover 2 covers the base 1, the ends of the two baffles 10 contact each other, so that the upper cover 2 and the base 1 are in a cylindrical shape. One end of the cylinder formed between the upper cover body 2 and the base 1 is in a closed state, and the two elastic bands 11 of the medical staff are adhered to each other through the Velcro 13 and the Velcro 14, so that the cylinder formed between the upper cover body 2 and the base 1 is in a closed state. When the patient undergoes hemodialysis in the cold winter, the cylinder formed between the upper cover body 2 and the base 1 is closed, thereby reducing the contact of the patient's arm with the external cold air, thereby avoiding the discomfort caused by the patient's arm being exposed to the cold air for a long time when the patient undergoes hemodialysis in winter.

[0074] During the hemodialysis process, the patient can observe the puncture site through the observation plate 39. When the puncture site of the patient becomes red and swollen, the medical staff separates the Velcro 13 and Velcro 14 that are adhered together, and then pushes the free end of the upper cover body 2 upward to make the base 1 open. At this time, the medical staff can change the puncture site of the patient. When the medical staff covers the upper cover body 2 on the base 1 again, the third servo motor 23 is started. The output shaft of the third servo motor 23 drives the screw 21 to rotate. The screw 21 cooperates with the strip groove 32 through the thread to drive the moving ring 24 moves horizontally. When the moving ring 24 moves to the red and swollen part of the patient's arm, the fourth servo motor 34 is turned on. The output shaft of the fourth servo motor 34 drives the gear 35 to rotate. During the rotation of the gear 35, it meshes with the meshing tooth 37 and drives the rotating ring 33 to rotate, so that the upper end of the rotating plate 6 drives the cold compress bag 7 to rotate downward. When the rotating plate 6 is in a horizontal state, the cold compress bag 7 is flattened downward on the red and swollen part of the patient's arm, and the micro pump 8 is started. The micro pump 8 transports the condensing agent to the liquid inlet pipe 25 through the delivery pipe 9, and the condensing agent flows into the cold compress bag 7 through the through hole on the side wall of the liquid inlet pipe 25. During the flow of the coolant, the heat of the red and swollen part of the patient's arm is taken away, thereby achieving the purpose of cold compressing the red and swollen part of the patient's arm and reducing the discomfort of the red and swollen part of the patient's arm. When the coolant flows into the liquid outlet pipe 26 through the upper end of the cold compress bag 7, the coolant flows into the coolant loading box 5 through the drainage pipe 28. When the coolant flows downward through the liquid guide plate 29, the heat in the coolant is transferred to the cooling pipe 30, so that the heat in the coolant is dissipated to the outside through the cooling pipe 30, thereby increasing the cooling speed of the coolant, and the cooled coolant flows downward through the liquid outlet 38. When it reaches the bottom of the refrigerant loading box 5, the micro pump 8 continues to transport the refrigerant into the cold compress bag 7, so as to achieve the recycling of the refrigerant. At the same time, the cold compress time of the cold compress bag 7 can be adjusted according to the degree of redness and swelling of the patient's skin, avoiding the need to replace the cold compress bag 7, which brings convenience to patients and medical staff. The side wall of the cold compress bag 7 is pasted with replaceable non-woven fabric by existing technology, which makes it easy for medical staff to replace the non-woven fabric and prevents the secretions on the patient's skin surface from contaminating the cold compress bag 7. The cooling patch in the existing technology can also be pasted on the cold compress bag 7 to increase the cold compress effect of the cold compress bag 7.

[0075] When the patient's hemodialysis is completed or the symptoms of redness and swelling on the patient's skin surface disappear, the fourth servo motor 34 is started again, and the output device of the fourth servo motor 34 drives the gear 35 to rotate in the opposite direction, so that the gear 35 drives the rotating plate 6 to rotate in the opposite direction through the meshing teeth 37. At this time, the upper end of the free end of the rotating plate 6 drives the cold compress bag 7 to rotate upward and makes the rotating plate 6 vertical, so that the cold compress bag 7 is separated from the patient's skin surface.

[0076] When the patient undergoes hemodialysis for too long, the patient can start the second servo motor 19, and the output shaft of the second servo motor 19 drives the support rod 17 to rotate, so that the support rod 17 drives the patient's fingers to bend upward, and then start the first servo motor 18, and the output shaft of the first servo motor 18 drives the free end of the support plate 16 to rotate upward, so that the support plate 16 drives the patient's palm to bend upward. When the rotation angle of the support plate 16 is greater than 10° and less than 90°, the first servo motor 18 drives the support plate 16 to rotate in the opposite direction, thereby realizing the extension and bending of the patient's hand, promoting blood circulation in the patient's hand, and avoiding numbness of the patient's hand due to long hemodialysis time.

[0077] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A combined protective device for hemodialysis, comprising a base (1) and an upper cover (2), wherein the bottom of the base (1) is fixedly connected to an electric telescopic rod (3), the electric telescopic rod (3) is vertically arranged, the upper cover (2) is hinged on the base (1), and the base (1) and the upper cover (2) are both arc-shaped, characterized in that: It also comprises: a support seat (4) and a cold compress assembly, wherein the support seat (4) is fixedly connected to the bottom of the base (1), and a driving mechanism is arranged on the inner side wall of the base (1), and the driving mechanism is used to drive the cold compress mechanism to move horizontally; The cold compress assembly comprises: A condensing agent loading box (5), wherein the condensing agent loading box (5) is slidably connected to the driving mechanism; A rotating plate (6), the rotating plate (6) being arranged on the driving mechanism, a cold compress bag (7) being sleeved on the rotating plate (6), the cold compress bag (7) being matched with the condensing agent loading box (5); A micro pump (8), the micro pump (8) is fixedly connected to the bottom of the condensing agent loading box (5), the output end of the micro pump (8) is fixedly connected to a delivery pipeline (9), and the delivery pipeline (9) is connected to the cold compress bag (7).

2. A combined protection device for hemodialysis according to claim 1, characterized in that: The ends of the base (1) and the upper cover (2) are both open, and one end of the base (1) and the upper cover (2) are fixedly connected with a baffle (10), the baffle (10) is semicircular, and the baffle (10) on the base (1) matches the baffle (10) on the upper cover (2); The base (1) and the other end of the upper cover (2) are fixedly connected with an elastic band (11), and arc grooves (12) are provided on the two elastic bands (11). The ends of the two arc grooves (12) are in contact with each other and are circular. The contacting ends of the two elastic bands (11) are respectively fixedly connected with a magic hook (13) and a magic cotton patch (14), and the two elastic bands (11) are adhered to each other through the magic hook (13) and the magic cotton patch (14).

3. A combined protection device for hemodialysis according to claim 2, characterized in that: A connecting plate (15) is fixedly connected to the lower surface of the support seat (4), and the lower end of the connecting plate (15) is fixedly connected to the bottom of the base (1); One end of the connecting plate (15) close to the elastic band (11) is rotatably connected to a bearing plate (16), and one end of the bearing plate (16) away from the connecting plate (15) is rotatably connected to at least two bearing rods (17); A first servo motor (18) is fixedly connected to the connecting plate (15), and an output shaft of the first servo motor (18) is drivingly connected to the bearing plate (16); A second servo motor (19) is fixedly connected to the side wall of the bearing plate (16), and an output shaft of the second servo motor (19) is drivingly connected to the bearing rod (17).

4. A combined protection device for hemodialysis according to claim 3, characterized in that: The driving mechanism comprises: A support plate (20), wherein the support plate (20) is fixedly connected to the inner side wall of the base (1), and the refrigerant loading box (5) is slidably connected to the support plate (20); A lead screw (21), both ends of the support plate (20) are fixedly connected to a fixed plate (22), and the end of the lead screw (21) is rotatably connected to the fixed plate (22); a third servo motor (23), the third servo motor (23) being fixedly connected to the fixed plate (22), the output shaft of the third servo motor (23) passing through the side wall of the fixed plate (22) and being fixedly connected to the end of the lead screw (21); A moving ring (24) is threadedly connected to the lead screw (21), and the rotating plate (6) is rotatably connected to the moving ring (24).

5. A combined protection device for hemodialysis according to claim 4, characterized in that: A liquid inlet pipe (25) and a liquid outlet pipe (26) are fixedly connected to the outer side wall of the condensing agent loading box (5), and the liquid outlet pipe (26) is located on the upper side of the liquid inlet pipe (25); The support plate (20) is provided with a strip-shaped through hole (27) for accommodating a liquid inlet pipe (25) and a liquid outlet pipe (26); the liquid inlet pipe (25) and the liquid outlet pipe (26) are slidably connected in the strip-shaped through hole (27), and the liquid inlet pipe (25) and the liquid outlet pipe (26) are connected to the cold compress bag (7).

6. A combined protection device for hemodialysis according to claim 5, characterized in that: The lower end of the cold compress bag (7) is fixedly connected to the side wall of the liquid inlet pipe (25), and the lower end of the cold compress bag (7) is connected to the liquid inlet pipe (25), and the upper end of the delivery pipe (9) passes through the side wall of the condensing agent loading box (5) and is connected to the liquid inlet pipe (25); The upper end of the cold compress bag (7) is fixedly connected to the side wall of the liquid outlet pipe (26), and the cold compress bag (7) is in communication with the liquid outlet pipe (26). At least two liquid discharge pipes (28) are fixedly connected to the side wall of the liquid outlet pipe (26), and the ends of the liquid discharge pipes (28) penetrate the side wall of the condensing agent loading box (5) and extend to the interior of the condensing agent loading box (5).

7. A combined protection device for hemodialysis according to claim 6, characterized in that: At least two liquid guide plates (29) are fixedly connected to the inner side wall of the refrigerant loading box (5), the plurality of liquid guide plates (29) are arranged obliquely, and the inclination directions of two adjacent liquid guide plates (29) are opposite, and a liquid outlet (38) is provided at the lower end of the liquid guide plate (29), and the plurality of liquid guide plates (29) are located between the delivery pipe (9) and the discharge pipe (28); At least two cooling pipes (30) are fixedly connected to the bottom of the refrigerant loading box (5), and the upper ends of the cooling pipes (30) pass through the liquid guide plate (29) and the top of the refrigerant loading box (5), and the upper end surfaces of the cooling pipes (30) are flush with the upper end surfaces of the refrigerant loading box (5), and the lower end surfaces of the cooling pipes (30) are flush with the lower end surfaces of the refrigerant loading box (5).

8. A combined protection device for hemodialysis according to claim 7, characterized in that: A sliding block (31) is fixedly connected to the side wall of the moving ring (24), a strip-shaped sliding groove (32) is provided on the side wall of the supporting plate (20), and the sliding block (31) is slidably connected in the strip-shaped sliding groove (32); A rotating ring (33) is rotatably connected to the moving ring (24), and one end of the rotating plate (6) is fixedly connected to the rotating ring (33).

9. A combined protection device for hemodialysis according to claim 8, characterized in that: A fourth servo motor (34) is fixedly connected to the lower surface of the sliding block (31), a gear (35) is fixedly connected to the output shaft of the fourth servo motor (34), an arc-shaped notch (36) is provided on the side wall of the rotating ring (33), a plurality of meshing teeth (37) are fixedly connected to the side wall of the arc-shaped notch (36), and the meshing teeth (37) are meshed with the gear (35).

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