Intelligent pressure feedback type peripheral vascular thrombus removal and autoblood transfusion system

Abstract

The invention relates to the technical field of medical instruments, and discloses an intelligent pressure feedback type peripheral blood vessel thrombus removal and autoblood transfusion system which comprises a negative pressure pump, one-way valves symmetrically arranged at one end of a negative pressure pump cabin, and a blood storage bag arranged on the outer side of the one-way valve at the outlet end of the negative pressure pump cabin. The separation mechanism is arranged on the outer side of the one-way valve at the inlet section of the negative pressure pump, and the bubble discharging mechanism is arranged in the separation mechanism and used for discharging bubbles from blood; the separating mechanism comprises a shell, a sliding groove formed in the top of the shell, a sliding block arranged in the sliding groove, and a reset spring arranged on the side, close to the negative pressure pump, of the sliding block, the sliding block moves along the sliding groove, and the sliding groove limits the moving range of the sliding block. By arranging the separating mechanism, the filtering part is divided into different working spaces, and the different working spaces can be switched, so that the situation that the whole equipment cannot be used due to blockage of a single filtering part is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an intelligent pressure feedback peripheral vascular thrombus removal and autologous blood transfusion system. Background Art

[0002] The intelligent pressure-feedback peripheral thrombus removal and autologous blood transfusion system integrates advanced sensing technology and intelligent control algorithms to accurately sense pressure changes within the vacuum pump. During clot removal, it provides feedback to the vacuum pump regarding pressure, effectively removing clots while minimizing damage to the vessel wall. The system also features autologous blood transfusion, recovering blood during the clot removal process and returning it to the patient after filtration, reducing blood waste and the risk of allogeneic blood transfusion.

[0003] Traditional peripheral vascular thrombus removal and autologous blood transfusion systems are widely used in the medical field. However, due to the limitations of their structure and working principles, they often have some problems that cannot be ignored. Among them, thrombi can easily accumulate and clog the filter component. During the thrombus removal process, a large amount of thrombus fragments are sucked out with the blood, and these fragments tend to accumulate in the filter component. Once the accumulation is too excessive, the filter channel will narrow or even be completely blocked, thereby affecting the filtration effect. In addition, bubbles can easily mix into the extracted blood. Once the bubbles mix with the blood, they will be returned to the patient's body with the blood. Once these bubbles enter the blood vessels, they may block small blood vessels, causing local tissue ischemia and hypoxia, and in severe cases, even endangering the patient's life. Bubbles may also interfere with the normal flow of blood, affecting the efficiency and safety of blood transfusion. Summary of the Invention

[0004] In view of the problems in existing technologies such as the lack of equipment to deal with thrombosis in the blood transfusion system and the problem of removing bubbles in the blood, an intelligent pressure feedback peripheral vascular thrombus removal and autologous blood transfusion system is proposed.

[0005] Its purpose is to enable the blood transfusion system to cope with the blockage of the equipment by blood clots and to remove bubbles from the aspirated blood.

[0006] The technical solution of the present invention is an intelligent pressure-feedback peripheral vascular thrombus removal and autologous blood transfusion system, which includes a negative pressure pump, a one-way valve symmetrically arranged at one end of the negative pressure pump chamber, a blood storage bag arranged outside the one-way valve at the outlet end of the negative pressure pump chamber, a separation mechanism arranged outside the one-way valve at the inlet section of the negative pressure pump, and a bubble removal mechanism arranged inside the separation mechanism, the bubble removal mechanism being used to remove bubbles from the blood;

[0007] The separation mechanism includes a shell, a slide groove arranged at the top of the shell, a slider arranged inside the slide groove, the slider moves along the slide groove, the slide groove limits the moving range of the slider, a return spring arranged on the side of the slider close to the negative pressure pump, the return spring makes the slider maintain the tendency to move in the direction away from the negative pressure pump, the two ends of the return spring are fixedly connected to the slider and the slide groove respectively, a separation cabin arranged inside the shell, a driving groove opened on the outside of the separation cabin, the slider squeezes the driving groove to make the separation cabin rotate, the bottom of the slider is slidably connected to the inner wall of the driving groove, the side walls of the driving groove are staggered with each other at the corner position of the turning point, a filter plate is arranged on the inner wall of the separation cabin, the filter plate intercepts thrombus in the blood, a screw cover is arranged on the side of the shell away from the negative pressure pump, the shell is sealed after the screw cover is tightened, and a docking unit is arranged inside the screw cover.

[0008] Furthermore, a driving rod is provided at the bottom of the sliding block, and the bottom end of the driving rod is slidably connected to the driving groove.

[0009] Furthermore, a medicine injection port is provided in the center of the rotary cap away from the negative pressure pump, and a suction port is provided at the edge of the rotary cap on the same side as the medicine injection port.

[0010] Furthermore, the docking unit includes a connector opened at the rotary cover near the suction port, an ejection spring arranged at the end of the connector away from the negative pressure pump, the two ends of the ejection spring are respectively fixedly connected to the rotary cover and the connector, a orifice plate arranged on the side of the separation cabin near the rotary cover, and three annular arrays of flow holes opened on the side of the orifice plate near the rotary cover, and the end of the connector near the orifice plate abuts against the aligned flow holes.

[0011] Furthermore, the end of the connector close to the orifice plate is an outward convex arc end face, and an annular groove is formed on one side of the flow hole close to the connector, and the annular groove matches the outward convex arc end face of the connector.

[0012] Furthermore, the bubble removal mechanism includes a sedimentation chamber arranged on the side of the shell away from the separation cabin, a spring arranged on the side of the sedimentation chamber close to the negative pressure pump, a gear ring arranged on the outer end of the spring, a driving wheel arranged on the top of the gear ring, the driving wheel is rotatably connected to the shell on the side away from the sedimentation chamber, a driven wheel arranged at the bottom of the driving wheel, an eccentric block arranged on the side of the driven wheel close to the sedimentation chamber, a disc arranged on the side of the driven wheel away from the sedimentation chamber, a knob arranged at the bottom of the shell close to the negative pressure pump, and a pressure block arranged on the side of the knob close to the sedimentation chamber.

[0013] Furthermore, a thread is provided in the middle of the knob, a screw hole is provided at the connection between the shell and the knob, and the screw hole and the knob are threadedly connected.

[0014] Furthermore, a limiting groove is provided on the side of the gear ring close to the negative pressure pump, and a limiting ring is provided on the inner wall of the housing close to the negative pressure pump, and the limiting ring is rotatably connected to the limiting groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By setting up a separation mechanism, the filter components are divided into different working spaces, and different working spaces can be switched. The function of the separation mechanism is that when one of the filter components is blocked due to thrombus accumulation, the system can automatically switch to another unblocked working space to continue blood filtration and transfusion. This design avoids the situation where the entire device cannot be used due to the blockage of a single filter component, ensuring the continuity and stability of the blood transfusion process. By switching the working space, the system can continuously and effectively remove thrombus while ensuring the normal transfusion of blood, thereby improving the reliability and practicality of the device in treating peripheral vascular thrombosis.

[0017] 2. By setting up a bubble removal mechanism, bubbles in the blood are handled by vibration. When blood flows through the mechanism, the bubble removal mechanism will vibrate, and the vibration will change the stress state of the bubbles in the blood, promoting the bubbles to float. Under the action of vibration, the relative position of the bubbles to the blood changes, and they gradually move to the surface of the liquid. As the bubbles continue to float, they will gather in the upper layer of the blood and burst. In this way, the bubble removal mechanism accelerates the discharge process of bubbles in the blood and reduces the possibility of bubbles entering the patient's blood vessels. This helps to ensure the safety of blood transfusion, avoid bubbles in the blood vessels causing adverse consequences, ensure that the transfused blood is purer, and improve the effect of blood transfusion therapy.

[0018] 3. By providing a docking unit, the blood is ensured to enter the correct working area of ​​the filter component during the blood drawing process. The docking unit is located at the junction of the blood drawing channel and the filter component. Its design enables precise docking. When the blood drawing channel is connected to the docking unit, the guiding structure inside the docking unit guides the blood flow to the designated working area of ​​the filter component. This guiding effect prevents blood from accidentally entering other areas and ensures the normal flow path of blood within the filter component. Through the precise docking and guidance of the docking unit, the system can effectively guide the blood to the working space requiring filtration treatment, improving the accuracy and efficiency of blood processing. At the same time, this also reduces problems such as reduced filtration effect or equipment failure caused by incorrect blood flow. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a schematic diagram of the overall structure of the separation mechanism of the present invention;

[0021] Figure 3 An exploded view of the separation mechanism of the present invention;

[0022] Figure 4 Schematic diagram of the internal structure of the housing of the present invention;

[0023] Figure 5 This is a schematic diagram of the connection between the housing and the slideway of the present invention;

[0024] Figure 6 This is a schematic diagram of the connection between the slider and the chute of the present invention;

[0025] Figure 7 This is a schematic diagram of the connection between the orifice plate and the separation cabin of the present invention;

[0026] Figure 8 This is a schematic diagram of the connection between the filter plate and the separation cabin of the present invention;

[0027] Figure 9 This is a schematic diagram of the separation cabin and orifice plate structure of the present invention;

[0028] Figure 10 This is a schematic diagram of the connection between the connector and the orifice plate of the present invention;

[0029] Figure 11 This is a schematic diagram of the connection between the mainspring and the gear ring of the present invention;

[0030] Figure 12 This is a schematic diagram of the connection between the gear ring and the driving wheel of the present invention;

[0031] Figure 13 This is a schematic structural diagram of the eccentric block and driven wheel of the present invention;

[0032] Figure 14 It is a schematic diagram of the connection between the driven wheel and the disc of the present invention.

[0033] In the picture:

[0034] 1. Negative pressure pump; 2. One-way valve; 3. Blood storage bag; 4. Separation mechanism; 5. Bubble removal mechanism; 41. Housing; 42. Slide; 43. Slider; 44. Return spring; 45. Separation cabin; 46. Drive slot; 47. Filter plate; 48. Screw cap; 49. Connector; 410. Ejection spring; 411. Orifice plate; 412. Flow hole; 51. Sedimentation chamber; 52. Spring; 53. Gear ring; 54. Driving wheel; 55. Driven wheel; 56. Eccentric block; 57. Disc; 58. Knob; 59. Pressure block. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] Example 1, with reference to Figures 1-10, which is the first embodiment of the present invention, provides an intelligent pressure feedback peripheral vascular thrombus removal and autologous blood transfusion system, including a negative pressure pump 1, a one-way valve 2 symmetrically fixedly connected to one end of the negative pressure pump 1 chamber, a blood storage bag 3 fixedly connected to the outside of the one-way valve 2 at the outlet end of the negative pressure pump 1 chamber, a separation mechanism 4 installed on the outside of the one-way valve 2 at the inlet section of the negative pressure pump 1, and a bubble discharge mechanism 5 installed inside the separation mechanism 4, the bubble discharge mechanism 5 is used to discharge bubbles from the blood; the separation mechanism 4 includes a shell 41, a slide 42 fixedly connected to the top of the shell 41, a slider 43 slidably connected to the inside of the slide 42, the slider 43 moves along the slide 42, the slide 42 limits the moving range of the slider 43, and a fixed connection to the slider 43 near the side of the negative pressure pump 1. The return spring 44 keeps the slider 43 moving away from the negative pressure pump 1. The two ends of the return spring 44 are fixedly connected to the slider 43 and the slide groove 42 respectively, and the separation cabin 45 is rotatably connected to the inside of the shell 41. The driving groove 46 is opened on the outside of the separation cabin 45. The slider 43 squeezes the driving groove 46 to rotate the separation cabin 45. The bottom of the slider 43 is slidably connected to the inner wall of the driving groove 46. The side walls of the driving groove 46 are staggered with each other at the corner position of the turning point. The filter plate 47 is fixedly connected to the inner wall of the separation cabin 45. The filter plate 47 intercepts thrombus in the blood. It is threadedly connected to the screw cover 48 on the side of the shell 41 away from the negative pressure pump 1. After the screw cover 48 is tightened, the shell 41 is sealed, and the docking unit is assembled inside the screw cover 48.

[0037] Specifically, a pressure sensing device is connected to the top of the negative pressure pump 1, which can provide real-time feedback on the pressure parameters inside the negative pressure pump 1. The negative pressure pump 1 extracts thrombus and blood in the peripheral blood vessels by generating negative pressure. The one-way valve 2 is used to restrict the flow of blood. The blood storage bag 3 is used to store filtered blood. The interior of the shell 41 contains working parts, which can be moved along the slide groove 42 by pushing the slider 43. When the slider 43 moves toward the direction close to the negative pressure pump 1, it will squeeze the return spring 44. After releasing the slider 43, the return spring 44 resets the slider 43. While the slider 43 moves again, it squeezes the inner wall of the driving groove 46 to rotate the separation cabin 45. When the separation cabin 45 rotates, it drives the filter plate 47 and the orifice plate 411 to rotate together. The slider 43 moves toward the negative pressure pump 1 to the maximum stroke and resets once, which can drive the separation cabin 45 to rotate one hundred and twenty degrees. The rotary cover 48 seals the inside of the shell 41 by cooperating with the shell 41.

[0038] Reference Figure 6 and Figure 7 A driving rod is provided at the bottom of the slider 43 , and the bottom end of the driving rod is slidably connected to the driving groove 46 .

[0039] Specifically, the slider 43 moves and drives the driving rod to move together. Since the driving rod is slidably connected to the driving groove 46, it squeezes the inner wall of the driving groove 46 while moving, thereby rotating the separation cabin 45.

[0040] Reference Figure 1-Figure 4 A medicine injection port is provided in the center of the rotary cover 48 away from the negative pressure pump 1, and a suction port is provided at the edge of the rotary cover 48 on the same side as the medicine injection port.

[0041] Specifically, medicine can be injected into the housing 41 through the medicine injection port, and blood can be drawn out of the patient's body through the suction port connected to the catheter.

[0042] Reference Figures 1-10 The docking unit includes a connector 49 provided on the rotary cover 48 near the suction port, an ejection spring 410 fixedly connected to the end of the connector 49 away from the negative pressure pump 1, the two ends of the ejection spring 410 are respectively fixedly connected to the rotary cover 48 and the connector 49, a orifice plate 411 fixedly connected to the side of the separation cabin 45 near the rotary cover 48, and three annular arrays of flow holes 412 provided on the side of the orifice plate 411 near the rotary cover 48, and one end of the connector 49 near the orifice plate 411 abuts against the aligned flow holes 412.

[0043] Specifically, the connector 49 moves toward the direction close to the negative pressure pump 1 under the action of the ejection spring 410, and stops after moving to the maximum stroke under the constraint of the suction port. The orifice plate 411 divides the filter plate 47 into three different working spaces, and the extracted blood enters the gap between the orifice plate 411 and the filter plate 47 through the circulation hole 412.

[0044] Reference Figure 10 The end of the connector 49 close to the orifice plate 411 is a convex arc end face, and an annular groove is opened on the side of the flow hole 412 close to the connector 49, and the annular groove matches the convex arc end face of the connector 49.

[0045] Specifically, when the orifice plate 411 rotates, the annular groove will squeeze the convex arc end surface of the connector 49, causing the connector 49 to move away from the negative pressure pump 1 until the orifice plate 411 rotates one hundred and twenty degrees, and the connector 49 is inserted into the annular groove aligned with it again.

[0046] Example 2, reference Figures 1-14, which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the bubble discharge mechanism 5 includes a sedimentation chamber 51 fixedly connected to the side of the shell 41 away from the separation cabin 45, a spring 52 fixedly connected to the side of the sedimentation chamber 51 close to the negative pressure pump 1, a gear ring 53 fixedly connected to the outer end of the spring 52, a driving wheel 54 meshingly connected to the top of the gear ring 53, the driving wheel 54 is rotatably connected to the shell 41 on the side away from the sedimentation chamber 51, a driven wheel 55 meshingly connected to the bottom of the driving wheel 54, an eccentric block 56 fixedly connected to the side of the driven wheel 55 close to the sedimentation chamber 51, a disc 57 fixedly connected to the side of the driven wheel 55 away from the sedimentation chamber 51, a knob 58 threadedly connected to the bottom of the shell 41 close to the negative pressure pump 1, and a pressure block 59 fixedly connected to the knob 58 close to the sedimentation chamber 51.

[0047] Specifically, the blood enters the sedimentation chamber 51 after being filtered by the filter plate 47. The bubbles carried in the blood float upward to the liquid surface of the blood and then burst. The negative pressure pump 1 preferentially extracts the blood at the bottom of the sedimentation chamber, thereby reducing the bubble content of the blood that eventually enters the negative pressure pump 1. The gear ring 53 is rotated by rotating the driving wheel, and the gear ring 53 rotates to store power in the mainspring 52. After the driving wheel 54 is released, the mainspring 52 drives the gear ring 53 to reverse, and the reverse rotation of the gear ring 53 drives the driven wheel 55 and the eccentric block 56 to rotate. The rotation of the eccentric block 56 generates vibration, which is transmitted to the blood inside the sedimentation chamber 51 through the sedimentation chamber, accelerating the floating and bursting of bubbles in the blood. , thereby reducing the bubble content in the blood, by turning the knob 58 to move it towards the direction close to the disc 57, the knob 58 drives the pressure block 59 to move while moving. After the pressure block 59 contacts the disc 57, the rotation speed of the disc 57 and the driven wheel 55 is reduced under the action of friction. By adjusting the contact force between the pressure block 59 and the disc 57, the rotation speed of the driven wheel 55 and the eccentric block 56 is controlled, thereby controlling their vibration frequency. When the bubble content in the blood is high, the vibration frequency is appropriately increased to improve the bubble discharge speed. Otherwise, the vibration frequency is reduced to avoid excessive vibration causing the cell wall of the red blood cells in the blood to rupture.

[0048] Reference Figure 12 and Figure 13 A thread is provided in the middle of the knob 58 , and a screw hole is provided at the connection between the housing 41 and the knob 58 , and the screw hole and the knob 58 are threadedly connected.

[0049] Specifically, the knob 58 will move along its own axis under the action of the thread while rotating, and its moving direction can be controlled by changing the forward and reverse rotation of the knob 58.

[0050] Reference Figures 1-12 A limiting groove is provided on the side of the gear ring 53 close to the negative pressure pump 1 , and a limiting ring is provided on the inner wall of the housing 41 close to the negative pressure pump 1 , and the limiting ring is rotatably connected to the limiting groove.

[0051] Specifically, the gear ring 53 can only rotate in the original position under the constraint of the limiting groove and the limiting ring. The rest of the structure is the same as that of embodiment 1.

[0052] In summary, the working principle of the present invention is as follows: the blood drawing tube is connected to the suction port, and negative pressure is generated in the negative pressure pump 1, so that the thrombus in the peripheral blood vessel is drawn into the sedimentation chamber 51 together with the blood. In the process of the blood passing through the filter plate 47, the thrombus and some bubbles carried by the blood are filtered. When there are many thrombi and the filter space in use is blocked, the slider 43 is moved in the direction close to the negative pressure pump 1, and the push is stopped after it moves to the maximum stroke to reset it. While the slider 43 moves, it drives the separation cabin 45 to rotate, and the separation cabin 45 drives the filter plate 47 and the orifice plate 411 to rotate together. After the orifice plate 411 rotates, the flow hole 412 connected to the connector 49 is switched to allow the blood to flow out of the sedimentation chamber 51. When the liquid enters the unblocked filter space and the blood in the sedimentation chamber needs to be discharged, the gear ring 53 is rotated by the active wheel 54, and the gear ring 53 rotates to store power in the mainspring 52. After the active wheel 54 is released, the mainspring 52 rotates the driven wheel 55 through the gear ring 53. The driven wheel 55 rotates while driving the eccentric block 56 to rotate. The eccentric block 56 generates vibration while rotating. After the vibration is transmitted to the blood through the sedimentation chamber, it promotes the bursting and floating of bubbles in the blood and reduces the bubble content in the blood. The contact force between the pressure block 59 and the disc 57 is controlled by turning the knob 58 to control the rotation speed of the eccentric block 56 so that its frequency can be adjusted according to different usage requirements.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An intelligent pressure feedback peripheral vascular thrombus removal and autologous blood transfusion system, comprising a negative pressure pump (1), a one-way valve (2) symmetrically arranged at one end of a chamber of the negative pressure pump (1), and a blood storage bag (3) arranged outside the one-way valve (2) at the outlet end of the chamber of the negative pressure pump (1), characterized in that: It also includes a separation mechanism (4) arranged outside the one-way valve (2) at the inlet end of the negative pressure pump (1), and a bubble discharge mechanism (5) arranged inside the separation mechanism (4), the bubble discharge mechanism (5) being used to discharge bubbles from the blood; The separation mechanism (4) includes a housing (41), a chute (42) arranged on the top of the housing (41), a slider (43) arranged inside the chute (42), the slider (43) moves along the chute (42), the chute (42) limits the moving range of the slider (43), a return spring (44) arranged on the side of the slider (43) close to the negative pressure pump (1), the return spring (44) keeps the slider (43) moving in a direction away from the negative pressure pump (1), the two ends of the return spring (44) are fixedly connected to the slider (43) and the chute (42), and the separation cabin (43) arranged inside the housing (41) is provided. 45), a driving groove (46) is provided on the outside of the separation cabin (45), the slider (43) squeezes the driving groove (46) to rotate the separation cabin (45), the bottom of the slider (43) is slidably connected to the inner wall of the driving groove (46), the side walls of the driving groove (46) are staggered with each other at the corner position of the turning point, a filter plate (47) is arranged on the inner wall of the separation cabin (45), the filter plate (47) intercepts thrombus in the blood, a screw cap (48) is arranged on the side of the shell (41) away from the negative pressure pump (1), the screw cap (48) is tightened to seal the shell (41), and a docking unit is arranged inside the screw cap (48).

2. The intelligent pressure-feedback peripheral vascular thrombus removal and autologous blood transfusion system according to claim 1, characterized in that: A driving rod is provided at the bottom of the slider (43), and the bottom end of the driving rod is slidably connected to the driving groove (46).

3. The intelligent pressure-feedback peripheral vascular thrombus removal and autologous blood transfusion system according to claim 1, characterized in that: A medicine injection port is provided in the center of the rotary cover (48) away from the negative pressure pump (1), and a suction port is provided at the edge of the rotary cover (48) on the same side as the medicine injection port.

4. The intelligent pressure-feedback peripheral vascular thrombus removal and autologous blood transfusion system according to claim 1, characterized in that: The docking unit comprises a connector (49) provided on the rotary cover (48) near the suction port, an ejection spring (410) provided at one end of the connector (49) away from the negative pressure pump (1), the two ends of the ejection spring (410) being fixedly connected to the rotary cover (48) and the connector (49), a perforated plate (411) provided on one side of the separation cabin (45) near the rotary cover (48), and three annular arrays of flow holes (412) provided on one side of the perforated plate (411) near the rotary cover (48), and one end of the connector (49) near the perforated plate (411) abutting against the aligned flow holes (412).

5. The intelligent pressure feedback peripheral vascular thrombus removal and autologous blood transfusion system according to claim 4, characterized in that: The end of the connector (49) close to the orifice plate (411) is an outward convex arc end face, and the side of the flow hole (412) close to the connector (49) is provided with an annular groove, and the annular groove matches the outward convex arc end face of the connector (49).

6. The intelligent pressure-feedback peripheral vascular thrombus removal and autologous blood transfusion system according to claim 1, characterized in that: The bubble discharge mechanism (5) comprises a sedimentation chamber (51) arranged on a side of the housing (41) away from the separation cabin (45), a spring (52) arranged on a side of the sedimentation chamber (51) close to the negative pressure pump (1), a gear ring (53) arranged on the outer end of the spring (52), a driving wheel (54) arranged on the top of the gear ring (53), a side of the driving wheel (54) away from the sedimentation chamber (51) being rotatably connected to the housing (41), a driven wheel (55) arranged at the bottom of the driving wheel (54), an eccentric block (56) arranged on a side of the driven wheel (55) close to the sedimentation chamber (51), a disc (57) arranged on a side of the driven wheel (55) away from the sedimentation chamber (51), a knob (58) arranged at the bottom of the housing (41) close to the negative pressure pump (1), and a pressure block (59) arranged on a side of the knob (58) close to the sedimentation chamber (51).

7. The intelligent pressure feedback peripheral vascular thrombus removal and autologous blood transfusion system according to claim 6, characterized in that: The middle portion of the knob (58) is provided with a thread, and a screw hole is provided at the connection between the housing (41) and the knob (58), and the screw hole and the knob (58) are threadedly connected.

8. The intelligent pressure feedback peripheral vascular thrombus removal and autologous blood transfusion system according to claim 6, characterized in that: The gear ring (53) has a limiting groove on one side close to the negative pressure pump (1), and a limiting ring is provided on the inner wall of the housing (41) on the side close to the negative pressure pump (1), and the limiting ring is rotatably connected to the limiting groove.

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