Intensive unit extracorporeal circulator for hemodialysis

Abstract

The invention discloses an intensive care unit extracorporeal circulator for hemodialysis, and belongs to the technical field of medical instruments, the intensive care unit extracorporeal circulator comprises a base, the upper surface of the base is fixedly connected with an external circulator body, the right side of the external circulator body is fixedly connected with a fixing box, and the interior of the fixing box is slidably connected with an adjusting plate; the rotating rod can be driven to rotate by rotating the hand-cranking rotating disc, the screw rod is driven to rotate through meshing transmission of the bevel gear, accordingly, the adjusting plate moves up and down, the pipeline hanging rod is controlled to stretch out and retract, and compared with a traditional bolt and nut fixing and adjusting mode, operation is simpler, more convenient and faster, tedious screwing operation is not needed, and practicability is high. The hemodialysis preparation time is effectively shortened, the hemodialysis efficiency is improved, meanwhile, through the design of a pressing cavity, a first piston plate, a first spring, a clamping cavity, a positioning block and a positioning hole in the rotating column, the positioning block is clamped into the positioning hole to lock the rotating column, and the pipeline hanging rod is prevented from accidentally moving.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and in particular to an extracorporeal circulator in a intensive care unit for hemodialysis. Background Art

[0002] Hemodialysis is one of the renal replacement therapies for patients with acute and chronic renal failure. It can replace part of the kidney function, remove excess water from the body, remove metabolic waste from the body, and maintain electrolyte and acid-base balance. For patients with renal failure, hemodialysis is an important treatment method to maintain life and improve the quality of life, and the extracorporeal circulation device is a key device in the hemodialysis process.

[0003] Most of the existing hemodialysis external circulator pipeline suspension rods are fixed and adjusted with mechanical connectors such as bolts and nuts. When adjusting this structure, medical staff need to spend a lot of time loosening and tightening the bolts. The operation steps are cumbersome and cannot meet the needs of quickly adjusting parameters such as the height and angle of the pipeline suspension rod in an emergency, which will extend the preparation time and affect the efficiency of hemodialysis. At the same time, the existing hemodialysis external circulator cannot quickly and effectively support and fix different types of intravenous bottles, which may cause the intravenous bottles to shake, shift or even fall off during the hemodialysis process, which will not only affect the normal flow of blood and lead to poor dialysis effects, but may also cause serious safety problems. Summary of the invention

[0004] Purpose of the invention: The purpose of the present invention is to provide a solution to the problem that the existing hemodialysis external circulator pipeline hanging rods are mostly fixed and adjusted by mechanical connectors such as bolts and nuts, and the operation steps are cumbersome, the preparation time is prolonged, and the efficiency of hemodialysis is affected; another purpose of the present invention is to provide a solution to the problem that the existing hemodialysis external circulator cannot quickly and effectively support and fix venous bottles of different models, which affects the normal flow of blood and leads to poor dialysis effect.

[0005] Technical solution: An extracorporeal circulation device for hemodialysis intensive care unit, comprising a base, an extracorporeal circulation device body is fixedly connected to the upper surface of the base, a fixing box is fixedly connected to the right side of the extracorporeal circulation device body, an adjusting plate is slidably connected inside the fixing box, a pipeline hanging rod is fixedly connected to the center of the upper surface of the adjusting plate, and the top end of the pipeline hanging rod extends to the top of the fixing box;

[0006] A hand-cranked turntable is provided at the lower right side of the fixed box, and a through-type engaging circular groove is opened on the right side of the interior of the fixed box, and a rotating column is provided inside the engaging circular groove, and a rotating rod is fixedly connected to the left center of the rotating column, and the left end of the rotating rod is rotatably connected to the left side of the interior of the fixed box through a rotating shaft, and the outer side wall of the rotating rod is fixedly connected to bevel gear 1, and a screw is rotatably connected to the lower surface of the interior of the fixed box through a rotating shaft, and the top of the screw is rotatably connected to the upper surface of the interior of the fixed box through a rotating shaft, and the outer side wall of the screw is threadedly connected to the adjusting plate, and the outer side wall of the screw is fixedly connected to bevel gear 2 located below the adjusting plate, and the outer side wall of the bevel gear 1 is meshed with the outer side wall of the bevel gear 2.

[0007] Furthermore, a plurality of movable wheels are fixedly connected to the lower surface of the base, and a plurality of electric telescopic rods are provided on the upper surface of the base and located on the outside of the external circulator body. The bottom ends of the output shafts of the plurality of electric telescopic rods extend to the bottom of the base and are fixedly connected to a support plate.

[0008] Furthermore, a pressing chamber is provided inside the rotating column, and a piston plate 1 is slidably connected inside the pressing chamber, a connecting block is fixedly connected to the right side of the piston plate 1, and the right side of the connecting block is fixedly connected to the left center of the hand-cranked turntable, and a plurality of springs are fixedly connected to the right side of the piston plate 1 and the inside of the pressing chamber, and engaging chambers are symmetrically provided inside the rotating column and behind the pressing chamber, and positioning blocks are slidably connected inside the two engaging chambers, and the interiors of the two engaging chambers are communicated with the interior of the pressing chamber, and a plurality of positioning holes are provided on the inner side wall of the engaging circular groove, and the opposite ends of the two positioning blocks extend to the interiors of the two opposite positioning holes respectively.

[0009] Furthermore, a fixed plate is symmetrically fixedly connected to the left side of the external circulator body, and a toggle plate is commonly arranged below the two fixed plates. Push air cavities are provided inside the two fixed plates, and piston plates 2 are slidably connected inside the two push air cavities. The lower surfaces of the two piston plates 2 are fixedly connected to the upper surface of the toggle plate with support rods, and a plurality of fixed grooves are provided on the opposite sides of the two push air cavities. A sliding cavity 1 is provided above the two support rods, and an oblique slide is slidably connected inside the two sliding cavities 1. The opposite sides of the two oblique slides extend to the inside of the two fixed grooves below, respectively, and the opposite sides of the two oblique slides are fixedly connected to the inside of the two sliding cavities 1 with a plurality of springs 2.

[0010] Furthermore, sliding chambers 2 are provided inside the two fixed plates and on opposite sides of the two pushing air chambers, piston plates 3 are slidably connected inside the two sliding chambers 2, extension rods are fixedly connected to opposite sides of the two piston plates 3, a plurality of extension rods extend from one end of the two piston plates 3 to opposite sides of the two fixed plates, and are fixedly connected to arc-shaped clamping plates, and the interiors of the two pushing air chambers are respectively connected to the interiors of the two sliding chambers 2.

[0011] Furthermore, a temperature control component is provided on the left side of the front surface of the external circulator body.

[0012] Furthermore, the upper surface of the toggle plate is fixedly connected to a limiting circular ring, and a through-type pipe opening is opened on the lower surface of the toggle plate and located inside the limiting circular ring.

[0013] Furthermore, a pulling cavity is opened at the lower part of the two support rods, and the interiors of the two pulling cavities are slidably connected with a pulling plate, and the centers of the lower surfaces of the two pulling plates are fixedly connected with pulling rods, and the bottom ends of the two pulling rods extend to the bottom of the toggle plate and are fixedly connected with the pulling plate, and the interiors of the two pulling cavities are respectively connected with the interiors of the two sliding cavities.

[0014] Furthermore, the inner side walls of the plurality of arc-shaped clamping plates are fixedly connected with rubber pads.

[0015] Beneficial effect: The rotating rod can be driven to rotate by turning the hand-cranked turntable, and the screw rod is rotated through the meshing transmission of the bevel gear, thereby realizing the up and down movement of the adjustment plate, and controlling the extension and retraction of the pipeline hanging rod. Compared with the traditional method of fixing and adjusting with bolts and nuts, the operation is simpler and faster, and no cumbersome twisting operation is required, which effectively shortens the preparation time for hemodialysis and improves the dialysis efficiency. At the same time, through the design of the pressing cavity, piston plate 1, spring 1, engaging cavity, positioning block and positioning hole in the rotating column, the positioning block is inserted into the positioning hole to lock the rotating column, thereby preventing the pipeline hanging rod from moving accidentally and ensuring the stability during use.

[0016] By pushing the toggle plate upward, the two piston plates 2 can be moved in the two pushing air chambers, and the piston plate 3 and the arc-shaped clamping plate can be driven to move by utilizing the air chamber communication principle, so as to clamp and fix different types of intravenous bottles. The toggle plate can also effectively support the bottom of the intravenous bottle. At the same time, the cooperation of the two oblique slide plates and the fixing groove can fix the position of the toggle plate to ensure the stability of the clamping. In addition, the rubber pad on the inner wall of the arc-shaped clamping plate can increase the friction force to prevent the intravenous bottle from sliding, and can also play a buffering and protective role to avoid damage to the intravenous bottle, thereby improving the adaptability to different types of intravenous bottles and ensuring the normal flow of blood and dialysis effect.

[0017] The moving wheels on the lower surface of the base make the extracorporeal circulation device easy to move in the intensive care unit and quickly reach the patient's position. The electric telescopic rod and support plate on the base can be used to lower the support plate to the ground after the device is moved into place, thereby firmly fixing the device and enhancing the stability of the device during operation, preventing shaking from affecting dialysis, and realizing the dual functions of convenient movement and stable fixation of the device.

[0018] The limiting ring on the toggle plate can limit the bottom of the intravenous pot, and the through-type pipe opening is convenient for the pipe connected to the intravenous pot to pass through. At the same time, the design of the pumping cavity, pulling plate, pulling rod and pulling plate in the two support rods can make the pulling plate slide in the pumping cavity by pulling the pulling plate, thereby affecting the withdrawal of the oblique sliding plate from the fixed groove, releasing the lock of the toggle plate and related fixed structures, and conveniently and quickly realizing the disassembly of the intravenous pot. The operation process is stable and controllable, avoiding damage to the intravenous pot and other parts of the equipment, and facilitating the maintenance of the equipment and the replacement and reuse of the intravenous pot. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a partial front view structural schematic diagram of the cross section of the fixed box of the present invention;

[0021] Figure 3 It is a side view structural schematic diagram of the cross section of the fixed plate, the support rod and the toggle plate of the present invention;

[0022] Figure 4 It is a schematic diagram of the front cross-section structure of the base of the present invention;

[0023] Figure 5 The present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 6 The present invention Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0025] Figure 7 The present invention Figure 3 Schematic diagram of the enlarged structure at point C in the middle.

[0026] In the figure: 1. base; 2. external circulator body; 3. fixing box; 4. adjustment plate; 5. pipeline hanging rod; 6. hand-cranked turntable; 7. snap-fitting groove; 8. rotating column; 9. rotating rod; 10. bevel gear 1; 11. screw rod; 12. bevel gear 2; 13. moving wheel; 14. electric telescopic rod; 15. support plate; 16. pressing chamber; 17. piston plate 1; 18. connecting block; 19. spring 1; 20. snap-fitting chamber; 21. positioning block; 22. positioning hole ; 23. Fixed plate; 24. Toggle plate; 25. Push air cavity; 26. Piston plate 2; 27. Support rod; 28. Fixed groove; 29. ​​Sliding cavity 1; 30. Oblique slide plate; 31. Spring 2; 32. Sliding cavity 2; 33. Piston plate 3; 34. Extending rod; 35. Temperature control component; 36. Limiting ring; 37. Pipe mouth; 38. Pumping cavity; 39. Pulling plate; 40. Pulling rod; 41. Pulling plate; 42. Arc clamping plate; 43. Rubber pad. DETAILED DESCRIPTION

[0027] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Example

[0029] like Figure 1 and Figure 4 As shown, a plurality of moving wheels 13 are fixedly connected to the lower surface of the base 1, and a plurality of electric telescopic rods 14 are arranged on the upper surface of the base 1 and outside the outer circulator body 2, and the bottom ends of the output shafts of the plurality of electric telescopic rods 14 all extend to the bottom of the base 1, and are all fixedly connected to a support plate 15;

[0030] The multiple moving wheels 13 are arranged to facilitate the easy movement of the device to different beds in the intensive care unit, and the multiple electric telescopic rods 14 are arranged on the outer side of the external circulator body 2 on the upper surface of the base 1. The bottom end of the output shaft extends to the bottom of the base 1 and is connected to the support plate 15. The height of the support plate 15 can be accurately adjusted by electric drive. After the equipment is moved into place, it can be lowered to contact the ground to provide support, fix the equipment, enhance stability, and prevent shaking during operation from affecting dialysis.

[0031] like Figure 3 and Figure 6As shown, a fixed plate 23 is symmetrically fixedly connected to the left side of the external circulator body 2, and a toggle plate 24 is commonly arranged below the two fixed plates 23. A pushing air cavity 25 is provided inside the two fixed plates 23, and a piston plate 26 is slidably connected inside the two pushing air cavities 25. The lower surfaces of the two piston plates 26 are fixedly connected to the upper surface of the toggle plate 24 with support rods 27. A plurality of fixing grooves 28 are provided on the opposite sides of the two pushing air cavities 25, and a sliding cavity 1 29 is provided above the inside of the two support rods 27. The interiors of the two sliding cavities 1 29 are slidably connected with oblique slide plates 30, and the opposite sides of the two oblique slide plates 30 extend to Inside the two lower fixed grooves 28, the opposite sides of the two oblique slide plates 30 are respectively fixedly connected to the inside of the two sliding chambers 1 29 with a plurality of springs 21, and the inside of the two fixed plates 23 and on the opposite sides of the two pushing air chambers 25 are provided with sliding chambers 22, and the insides of the two sliding chambers 22 are both slidably connected with piston plates 33, and the opposite sides of the two piston plates 33 are both fixedly connected with extension rods 34, and the ends of the plurality of extension rods 34 away from the two piston plates 33 extend to the opposite sides of the two fixed plates 23, and are all fixedly connected with arc-shaped clamping plates 42, and the insides of the two pushing air chambers 25 are respectively connected with the insides of the two sliding chambers 22;

[0032] The venous pot is stably placed above the toggle plate 24 and between the two fixed plates 23, and then the toggle plate 24 is pushed upward to drive the venous pot to move upward, so that the two piston plates 26 can slide upward inside the two pushing air chambers 25, and the airflow inside the two pushing air chambers 25 can be transported to the inside of the two sliding chambers 23, so that the two piston plates 33 slide relative to each other until the venous pot is clamped and fixed by multiple arc-shaped clamping plates 42. At the same time, when the two support rods 27 drive the two piston plates 26 to slide upward, the two oblique slide plates 30 can be fixed in the two fixed grooves 28 of corresponding heights by the elastic force of multiple springs 2 31, so that the position and clamping force of the multiple arc-shaped clamping plates 42 can be flexibly adjusted to adapt to the sizes of venous pots of different models, and different models of venous pots can be effectively and stably fixed, avoiding shaking and displacement of the venous pot, ensuring the normal progress of hemodialysis, reducing the risks caused by unstable fixation, and improving the versatility and practicality of the equipment.

[0033] like Figure 1 As shown, a temperature control assembly 35 is provided on the left side of the front surface of the external circulator body 2;

[0034] During the hemodialysis process, the blood temperature may fluctuate due to various factors, such as ambient temperature, blood flow, etc. The temperature control component 35 can quickly respond to these changes and automatically adjust the working state of the heating or cooling device to keep the blood temperature within the set range.

[0035] like Figure 3 As shown, the inner side walls of the plurality of arc-shaped clamping plates 42 are all fixedly connected with rubber pads 43;

[0036] The multiple rubber pads 43 can enhance the friction between the arc-shaped clamping plate 42 and the intravenous bottle to prevent sliding and displacement, and the good elasticity can buffer the pressure, protect the intravenous bottle made of fragile materials, improve the versatility of the extracorporeal circulator, and reduce component wear and extend the life of the equipment.

[0037] like Figure 1 , Figure 2 and Figure 5 As shown, an extracorporeal circulation device for a intensive care unit for hemodialysis is provided, comprising a base 1, an external circulation device body 2 is fixedly connected to the upper surface of the base 1, a fixed box 3 is fixedly connected to the right side of the external circulation device body 2, an adjusting plate 4 is slidably connected inside the fixed box 3, a pipeline hanging rod 5 is fixedly connected at the center of the upper surface of the adjusting plate 4, and the top of the pipeline hanging rod 5 extends to the top of the fixed box 3, a hand-cranked turntable 6 is arranged at the lower right side of the fixed box 3, a through-type engaging circular groove 7 is opened on the right side of the interior of the fixed box 3, a rotating column 8 is arranged inside the engaging circular groove 7, a rotating rod 9 is fixedly connected to the left center of the rotating column 8, the left end of the rotating rod 9 is rotatably connected to the left side of the interior of the fixed box 3 through a rotating shaft, a bevel gear 10 is fixedly connected to the outer side wall of the rotating rod 9, a screw rod 11 is rotatably connected to the lower surface of the interior of the fixed box 3 through a rotating shaft, the top of the screw rod 11 is rotatably connected to the upper surface of the interior of the fixed box 3 through a rotating shaft, and the outer side of the screw 11 The side wall is threadedly connected to the adjusting plate 4, the outer wall of the screw rod 11 and the lower part of the adjusting plate 4 are fixedly connected with a bevel gear 2 12, the outer wall of the bevel gear 10 is meshed with the outer wall of the bevel gear 2 12, a pressing chamber 16 is provided inside the rotating column 8, a piston plate 17 is slidably connected inside the pressing chamber 16, a connecting block 18 is fixedly connected to the right side of the piston plate 17, the right side of the connecting block 18 is fixedly connected to the left center of the hand-cranked turntable 6, a plurality of springs 19 are fixedly connected to the right side of the piston plate 17 and the inside of the pressing chamber 16, a clamping chamber 20 is symmetrically provided inside the rotating column 8 and located behind the pressing chamber 16, a positioning block 21 is slidably connected to the inside of the two clamping chambers 20, the insides of the two clamping chambers 20 are both connected to the inside of the pressing chamber 16, a plurality of positioning holes 22 are provided on the inner side wall of the clamping circular groove 7, and the opposite ends of the two positioning blocks 21 extend to the insides of the two opposite positioning holes 22 respectively;

[0038] By manually holding the hand-cranked turntable 6 and pulling it outward, the hand-cranked turntable 6 will drive the piston plate 17 to slide to the right inside the pressing chamber 16 through the connecting block 18, and at the same time compress multiple springs 19. The sliding of the piston plate 17 makes the two positioning blocks 21 inside the two engaging chambers 20 withdraw from the inside of the two positioning holes 22, and the limit on the rotating column 8 can be cancelled. At this time, the hand-cranked turntable 6 can be rotated to control the rotating column 8 to rotate. The rotating column 8 controls the rotation of the bevel gear 2 12 through the set bevel gear 10, and the bevel gear 2 12 can drive the screw 11 to rotate, and the screw 11 can control the adjustment plate 4 to slide inside the fixed box 3, thereby controlling the extension length of the pipeline hanging rod 5. The height of the pipeline hanging rod 5 can be quickly adjusted to reduce the preparation time, improve the flexibility of the device and also improve the efficiency of hemodialysis. When the height of the pipeline hanging rod 5 is adjusted, the hand-cranked turntable 6 can be released, and then the hand-cranked turntable 6 can be reset by the rebound of multiple springs 19, so that the two positioning blocks 21 are re-engaged into the two positioning holes 22 in the corresponding positions, thereby ensuring the stability of the pipeline hanging rod 5 when the extracorporeal circulation device is running. When the device is used up, the hand-cranked turntable 6 can be operated to rotate in the opposite direction to lower the pipeline hanging rod 5 to the same position as the device, so as to facilitate the movement of the device and prevent the pipeline hanging rod 5 from being extended too high and causing certain dangers during movement.

[0039] like Figure 3 As shown, the upper surface of the toggle plate 24 is fixedly connected to a limiting ring 36, and a through-type pipe opening 37 is opened on the lower surface of the toggle plate 24 and inside the limiting ring 36;

[0040] When the toggle plate 24 supports the bottom of the intravenous pot, the limiting ring 36 can limit the bottom of the intravenous pot, so that the intravenous pot is located in an effective clamping area, while ensuring the position stability of the intravenous pot during the supporting process. The set pipe opening 37 provides a channel for the pipe connected to the bottom of the intravenous pot to pass through, avoiding the pipe from being squeezed or blocked to affect the normal circulation of blood, thereby improving the convenience and reliability of the equipment and enhancing the adaptability to intravenous pots of different specifications.

[0041] like Figure 7 As shown, a pumping cavity 38 is provided at the lower part of the two support rods 27, and a pulling plate 39 is slidably connected to the inside of the two pumping cavities 38, and a pulling rod 40 is fixedly connected to the center of the lower surface of the two pulling plates 39, and the bottom ends of the two pulling rods 40 extend to the bottom of the toggle plate 24 and are fixedly connected to a pulling plate 41, and the interiors of the two pumping cavities 38 are respectively connected to the interiors of the two sliding cavities 29;

[0042] When the device is used, the two pulling plates 41 are pulled downward at the same time, driving the pulling rod 40 to slide, and then the two pulling plates 39 slide downward in the two pulling chambers 38. Since the two pulling chambers 38 are connected with the two sliding chambers 29, the two pulling plates 39 can slide downward to make the two inclined slides 30 withdraw from the two fixed grooves 28 of the corresponding height, thereby releasing the lock on the toggle plate 24, and at the same time making the clamping force of the multiple arc-shaped clamping plates 42 on the intravenous pot disappear, thereby realizing the convenient and quick disassembly of the intravenous pot, greatly saving the disassembly time and improving work efficiency.

[0043] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An extracorporeal circulation device for a hemodialysis intensive care unit, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to an external circulator body (2), the right side of the external circulator body (2) is fixedly connected to a fixed box (3), an adjustment plate (4) is slidably connected inside the fixed box (3), a pipeline hanging rod (5) is fixedly connected at the center of the upper surface of the adjustment plate (4), and the top end of the pipeline hanging rod (5) extends to the top of the fixed box (3); A hand-cranked turntable (6) is arranged at the lower right side of the fixed box (3); a through-type engaging circular groove (7) is opened on the right side of the interior of the fixed box (3); a rotating column (8) is arranged inside the engaging circular groove (7); a rotating rod (9) is fixedly connected to the left center of the rotating column (8); the left end of the rotating rod (9) is rotatably connected to the left side of the interior of the fixed box (3) through a rotating shaft; the outer wall of the rotating rod (9) is fixedly connected to a bevel gear 1 (10); a screw rod (11) is rotatably connected to the lower surface of the interior of the fixed box (3) through a rotating shaft; the top end of the screw rod (11) is rotatably connected to the upper surface of the interior of the fixed box (3) through a rotating shaft; the outer wall of the screw rod (11) is threadedly connected to the adjusting plate (4); the outer wall of the screw rod (11) is fixedly connected to a bevel gear 2 (12) located below the adjusting plate (4); the outer wall of the bevel gear 1 (10) is meshedly connected to the outer wall of the bevel gear 2 (12).

2. The extracorporeal circulation device for hemodialysis in a intensive care unit according to claim 1, characterized in that: A plurality of moving wheels (13) are fixedly connected to the lower surface of the base (1), and a plurality of electric telescopic rods (14) are arranged on the upper surface of the base (1) and located outside the external circulator body (2). The bottom ends of the output shafts of the plurality of electric telescopic rods (14) all extend below the base (1) and are fixedly connected to a support plate (15).

3. The extracorporeal circulation device for hemodialysis in a intensive care unit according to claim 1, characterized in that: A pressing chamber (16) is provided inside the rotating column (8), and a piston plate (17) is slidably connected inside the pressing chamber (16). A connecting block (18) is fixedly connected to the right side of the piston plate (17). The right side of the connecting block (18) is fixedly connected to the left center of the hand-cranked turntable (6). A plurality of springs (19) are fixedly connected to the right side of the piston plate (17) and the inside of the pressing chamber (16). A locking chamber (20) is symmetrically provided inside the rotating column (8) and behind the pressing chamber (16). A positioning block (21) is slidably connected inside the two locking chambers (20). The insides of the two locking chambers (20) are communicated with the inside of the pressing chamber (16). A plurality of positioning holes (22) are provided on the inner side wall of the locking circular groove (7), and the opposite ends of the two positioning blocks (21) extend to the insides of the two opposite positioning holes (22) respectively.

4. The extracorporeal circulation device for hemodialysis in a intensive care unit according to claim 1, characterized in that: The left side of the outer circulator body (2) is symmetrically fixedly connected with a fixing plate (23), and a toggle plate (24) is commonly provided below the two fixing plates (23). A pushing air cavity (25) is provided inside the two fixing plates (23), and a piston plate 2 (26) is slidably connected inside the two pushing air cavities (25). The lower surfaces of the two piston plates 2 (26) are fixedly connected to the upper surface of the toggle plate (24) with a support rod (27). The two pushing air cavities (2 5) are provided with a plurality of fixing grooves (28) on opposite sides thereof, a sliding cavity (29) is provided on the upper sides thereof, an inclined slide plate (30) is slidably connected to the interior of the two sliding cavities (29), the opposite sides of the two inclined slide plates (30) respectively extend to the interior of the two fixing grooves (28) below, and the opposite sides of the two inclined slide plates (30) are respectively fixedly connected to the interior of the two sliding cavities (29) with a plurality of springs (31).

5. The extracorporeal circulation device for hemodialysis in a intensive care unit according to claim 4, characterized in that: A sliding chamber 2 (32) is provided inside the two fixed plates (23) and on the opposite sides of the two pushing air chambers (25). The insides of the two sliding chambers 2 (32) are slidably connected with piston plates 3 (33). The opposite sides of the two piston plates 3 (33) are fixedly connected with extension rods (34). A plurality of extension rods (34) extend from one end of the two piston plates 3 (33) to the opposite sides of the two fixed plates (23) and are fixedly connected with arc-shaped clamping plates (42). The insides of the two pushing air chambers (25) are respectively connected with the insides of the two sliding chambers 2 (32).

6. The extracorporeal circulation device for hemodialysis in a intensive care unit according to claim 1, characterized in that: A temperature control component (35) is provided on the left side of the front surface of the external circulator body (2).

7. The extracorporeal circulation device for hemodialysis in a intensive care unit according to claim 4, characterized in that: The upper surface of the toggle plate (24) is fixedly connected to a limiting circular ring (36), and a through-type pipe opening (37) is provided on the lower surface of the toggle plate (24) and inside the limiting circular ring (36).

8. The extracorporeal circulation device for hemodialysis in a intensive care unit according to claim 4, characterized in that: A pulling cavity (38) is provided at the lower part of the two support rods (27), and a pulling plate (39) is slidably connected to the interior of the two pulling cavities (38). A pulling rod (40) is fixedly connected at the center of the lower surface of the two pulling plates (39). The bottom ends of the two pulling rods (40) extend to the bottom of the toggle plate (24) and are fixedly connected to a pulling plate (41). The interiors of the two pulling cavities (38) are respectively connected to the interiors of the two sliding cavities (29).

9. The extracorporeal circulation device for hemodialysis in a intensive care unit according to claim 5, characterized in that: The inner side walls of the plurality of arc-shaped clamping plates (42) are all fixedly connected with rubber pads (43).

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