Adapter for extracorporeal blood circulation blood pump and blood pump driving device

Abstract

The present application provides an adapter for an extracorporeal blood circulation blood pump and a blood pump driving device. The structure of the first magnetic rotating member arranged in the adapter remains fixed, and the structure of the second magnetic rotating member is adapted and adjusted according to the third magnetic rotating member in the blood pump. In this way, the second magnetic rotating member can be adapted to the third magnetic rotating member in the blood pump to be installed, so that one adapter can be installed for one corresponding blood pump. Specifically, during use, it is only necessary to replace the adapter corresponding to the blood pump to be installed without replacing the pump driver body, so that different blood pumps can be driven compatibly through the adapter, and the blood pump can be installed quickly.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of medical equipment, and in particular to an adapter for an extracorporeal blood circulation blood pump and a blood pump driving device. Background Art

[0002] Extracorporeal Membrane Oxygenation (ECMO) is mainly used to provide continuous extracorporeal respiration and circulation to patients with severe cardiopulmonary failure in order to maintain their lives. The core parts of extracorporeal membrane oxygenation (ECMO) are the membrane lung (artificial lung) and the blood pump (artificial heart). When the extracorporeal membrane oxygenation device is in operation, blood is drawn from the human body, and the membrane lung absorbs oxygen and excretes carbon dioxide through exchange. The blood that has undergone gas exchange is returned to the human body under the push of the blood pump. The blood pump usually includes a disposable blood pump and a reusable blood pump drive device. The disposable blood pump transfers blood by rotating the internal impeller; the blood pump drive device uses magnetic coupling to drive the blood pump impeller to rotate, thereby achieving the function of controlling blood transmission.

[0003] The centrifugal blood pumps from different manufacturers in the existing market are different and are sold in bundles with equipment and consumables. Currently, there is no device that is compatible with blood pumps from multiple manufacturers, resulting in high usage costs and limited user choices.

[0004] In addition, even if the blood pumps are from the same manufacturer, in ECMO clinical applications, due to the large individual differences among adults, children, and infants, the circulatory support flow and patient capacity differences cannot be met by the same blood pump. Blood pumps of different sizes and specifications are required, resulting in the need to design multiple pump drive devices to match the application, resulting in poor product compatibility.

[0005] Patent CN210355495U utilizes a replaceable adapter to match different blood pumps. This adapter is then connected to the output shaft of the power mechanism using a connector, enabling compatibility with different blood pumps. However, this structure requires drilling holes to secure the connecting shaft while connecting to the base, making it difficult to install quickly. Summary of the Invention

[0006] To this end, an embodiment of the present application provides an adapter for an extracorporeal blood circulation blood pump and a blood pump drive device.

[0007] In a first aspect, an embodiment of the present application provides an adapter for an extracorporeal blood circulation blood pump, comprising:

[0008] The adapter includes a housing that is detachably mounted on the pump driver body, wherein a first magnetic rotating member and a second magnetic rotating member are mounted in the housing; the first magnetic rotating member and the second magnetic rotating member are connected via a first rotating shaft, and the first magnetic rotating member drives the second magnetic rotating member to rotate when the first rotating shaft rotates;

[0009] The blood pump is provided with a third magnetic rotating member, and the second magnetic rotating member and the third magnetic rotating member are coupled to each other through magnetic force;

[0010] The structure of the first magnetic rotating member is fixed, and the structure of the second magnetic rotating member is adapted and adjusted according to the third magnetic rotating member in the blood pump.

[0011] As a preferred embodiment of the present application, the first rotating shaft includes a first rotating shaft body and a rolling element;

[0012] A mounting portion is provided at a position on the bottom of the adapter corresponding to the first rotating shaft body;

[0013] The rolling element is arranged in a space formed by the end of the first magnetic rotating element body and the mounting portion;

[0014] The first rotating shaft body is fixedly or movably connected to the rolling element, and the rolling element is movably connected to the mounting portion.

[0015] As a preferred embodiment of the present application, a bearing is provided at one end of the first rotating shaft body away from the rolling element, and both the bearing and the rolling element are provided with limiting devices.

[0016] Compared with the prior art, the adapter provided in the embodiment of the present application has a fixed structure of the first magnetic rotating member arranged in the adapter, and the structure of the second magnetic rotating member is adapted and adjusted according to the third magnetic rotating member in the blood pump. In this way, the second magnetic rotating member can be adapted to the third magnetic rotating member in the blood pump to be installed, and one adapter can be installed for one corresponding blood pump. Specifically, during use, it is only necessary to replace the adapter corresponding to the blood pump to be installed without replacing the pump driver body. This allows the adapter to drive blood pumps of different shapes or sizes compatibly, and allows quick installation of the blood pump without the need to prepare a large number of driver bodies, making it easy to carry.

[0017] In a second aspect, an embodiment of the present application further provides a blood pump drive device, comprising the adapter described in the first aspect, wherein the drive device further comprises a pump drive body;

[0018] The pump driver body includes a power mechanism and a fourth magnetic rotating member. The first magnetic rotating member and the fourth magnetic rotating member in the pump driver body are coupled to each other through magnetic force. The power mechanism is connected to the fourth magnetic rotating member through a second rotating shaft to provide rotational power for the fourth magnetic rotating member. The rotation of the fourth magnetic rotating member drives the first magnetic rotating member and the second magnetic rotating member to rotate in turn, thereby driving the third magnetic rotating member to rotate.

[0019] As a preferred embodiment of the present application, the pump driver body further includes a fixing seat, and the housing is detachably disposed on the fixing seat.

[0020] As a preferred embodiment of the present application, the first magnetic rotating member includes a first disk body and a first magnetic member, and the first magnetic member is arranged on the first disk body; the second magnetic rotating member includes a second disk body and a second magnetic member, and the second magnetic member is arranged on the second disk body; the fourth magnetic rotating member includes a third disk body and a third magnetic member, and the third magnetic member is arranged on the third disk body, and the first magnetic member and the third magnetic member are coupled by magnetic force.

[0021] As a preferred embodiment of the present application, a protrusion is provided on a side of the housing away from the blood pump, a first groove is provided on the fixing seat, and the protrusion is provided in the first groove to fix the adapter.

[0022] As a preferred embodiment of the present application, a plurality of second grooves are provided on the shell along the circumference of the protrusion, a clamping hole and a clamping platform are provided in the second groove, and a plurality of clamping parts corresponding to the second grooves are provided on the fixing seat along the circumference of the first groove. The clamping parts pass through the clamping holes and are rotated along the center of the first groove to form a clamping connection with the clamping platform to fix the adapter.

[0023] As a preferred embodiment of the present application, it further includes a locking device, wherein the locking device includes a locking button, a locking hole and a locking pin;

[0024] The locking button is provided on the outer side of the fixing base, and one end of the locking button passes through the mounting hole and is connected to the locking pin, and the locking pin is provided on the top surface of the fixing base; the locking hole is provided on the housing at a position corresponding to the locking pin, and a locking boss is provided in the locking hole;

[0025] When the locking button is pressed by an external force, the locking button is rotated in a first direction, and the locking boss is disengaged from the locking pin to unlock the adapter; when the external force is removed, the locking button is rotated in a second direction, and the locking pin is inserted into the locking hole and blocked by the locking boss to lock the adapter.

[0026] As a preferred embodiment of the present application, the locking button is connected to the fixing seat via a second elastic member. When the external force is removed, the second elastic member is used to keep the locking button in a locked position.

[0027] Compared with the prior art, the embodiment of the present application provides a blood pump drive device, which can achieve compatibility and drive of different blood pumps through the adapter without replacing the pump driver body, and can quickly install the blood pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0029] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall still fall within the scope of the technical contents disclosed herein.

[0030] Figure 1 The adapter usage state diagram provided in the embodiment of the present application;

[0031] Figure 2 A schematic diagram of the exploded structure of the adapter provided in an embodiment of the present application;

[0032] Figure 3 for Figure 1 Adapter BB cross-section diagram in;

[0033] Figure 4 A schematic diagram of the explosion structure of the blood pump drive device provided in an embodiment of the present application;

[0034] Figure 5 A schematic diagram of the explosion structure of the pump driver body provided in an embodiment of the present application; Figure 6 A partial three-dimensional cross-sectional view of a locking device in a locked state provided by an embodiment of the present application;

[0035] Figure 7 for Figure 4 Enlarged view of point B in FIG.

[0036] Figure 8A partial three-dimensional cross-sectional view of the locking device in the open state provided by an embodiment of the present application;

[0037] Figure 9 for Figure 6 Enlarged view of point C in the figure;

[0038] Figure 10 Schematic diagram of the structure of the lower shell of the shell;

[0039] Figure 11 Schematic diagram of the structure of the lower shell of the shell.

[0040] Reference numerals

[0041] 1-housing; 1-1-upper housing; 1-2-lower housing; 2-bearing; 3-second magnetic rotating member; 4-first rotating shaft body; 5-first magnetic rotating member; 6-rolling member; 7-mounting portion; 8-first elastic member; 9-blood pump; A-adapter; 10-pump driver body; 10-1-first groove; 11-fourth magnetic rotating member; 12-power mechanism; 13-second rotating shaft; 14-clamping member; 15-second elastic member; 16-locking pin; 17-locking button; 18-first direction; 19-clamping platform; 20-inclined surface; 21-clamping hole; 22-second groove; 23-locking hole; 24-protrusion; 25-pressing direction; 26-locking boss; 27-fixing seat; 28-second direction. DETAILED DESCRIPTION

[0042] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0043] like Figures 1 to 3 As shown, in the first aspect, an embodiment of the present application provides an adapter A for an extracorporeal blood circulation blood pump. The adapter A is arranged on a pump driver body 10 , and a blood pump 9 is installed on the adapter A.

[0044] The adapter A includes a housing 1, which is detachably mounted on a pump driver body 10. A first magnetic rotating member 5 and a second magnetic rotating member 3 are mounted in the housing 1. The first magnetic rotating member 5 and the second magnetic rotating member 3 are connected via a first rotating shaft. The first magnetic rotating member 5 rotates via the first rotating shaft, driving the second magnetic rotating member 3 to rotate.

[0045] The blood pump 9 is provided with a third magnetic rotating member, and the second magnetic rotating member 3 and the third magnetic rotating member are coupled to each other through magnetic force;

[0046] The structure of the first magnetic rotating member 5 remains fixed, and the structure of the second magnetic rotating member 3 is adapted and adjusted according to the third magnetic rotating member in the blood pump 9 .

[0047] In a preferred embodiment of the present application, the first rotating shaft includes a first rotating shaft body 4 and a rolling element 6;

[0048] A mounting portion 7 is provided at the bottom of the adapter A at a position corresponding to the first rotating shaft body 4;

[0049] The rolling element 6 is arranged in a space formed by the end of the first rotating shaft body 4 and the mounting portion 7;

[0050] The first rotating shaft body 4 is fixedly or movably connected to the rolling element 6 , and the rolling element 6 is movably connected to the mounting portion 7 , wherein the first rotating shaft body 4 is rotatably set inside the center of the housing 1 .

[0051] In the embodiments of this application, Figure 3 As shown, a bearing 2 is further provided on the end of the first rotating shaft body 4 away from the rolling element 6. A first spherical groove is provided on the end surface of the first rotating shaft body 4 near the rolling element 6. The mounting portion 7 is axially slidably fixed to the housing 1 along the first rotating shaft body 4. A second spherical groove is provided on the side of the mounting portion 7 facing the first spherical groove. The rolling element 6 is provided between the first and second spherical grooves.

[0052] It should be further explained that the bearing 2 is a deep groove ball bearing and the rolling element 6 is a ball bearing. Through the combination of the two, the first magnetic rotating element 5 is allowed to have a slight deflection and swing, which can better adapt to the second magnetic rotating element 3, minimize the eccentric vibration caused by the adaptation of the two, and reduce the vibration and noise during the operation of the pump drive device. In the embodiment of the present application, a limiting device is provided on both the bearing 2 and the rolling element 6, and the limiting device can limit the movement of the bearing 2 and the rolling element 6 in a set position. Preferably, the limiting device can be a limiting ring. As long as the limiting device is a structure that can stabilize and fix the bearing 2, it is within the scope of protection of the present application.

[0053] As a preferred embodiment of the present application, a first elastic member 8 is provided between the mounting portion 7 and the housing 1. The first elastic member 8 is preferably a spring, but may also be an elastic member such as a corrugated washer, rubber, or silicone. The first elastic member 8 can effectively eliminate the axial clearance generated during the manufacturing and assembly process, avoid vibration and noise caused by axial movement, and at the same time compensate for the clearance caused by wear of the ball bearing 2, thereby improving the continuous use life and reliability of the product.

[0054] The first magnetic rotating member 5 includes a first disk body and a first magnetic member, and the first magnetic member is arranged on the first disk body; the second magnetic rotating member 3 includes a second disk body and a second magnetic member, and the second magnetic member is arranged on the second disk body; in an embodiment of the present application, the first magnetic member and the second magnetic member can be a plurality of evenly distributed magnets, which can be magnetically coupled with the third magnetic rotating member inside the blood pump to transmit torque to the rotating blood pump impeller in a non-contact manner, and then the blood pump impeller can be rotated by rotating the second disk body so that the blood pump can realize the function of transporting liquid.

[0055] In the embodiment of the present application, different blood pump adapters A can be installed and cooperated with the pump driver body 10. The blood pump 9 is installed on the adapter A, and the adapter A is installed on the pump driver body 10. In this way, the pump driver body 10 can drive the blood pump 9 to operate through the adapter A.

[0056] It should be further explained that the housing 1 can generally be composed of a lower shell 1-2 and an upper shell 1-1. Of course, it can also be divided into more structural components based on actual manufacturing and assembly considerations, all of which fall within the scope of protection of this patent.

[0057] The adapter A provided in the embodiment of the present application can be used to replace the blood pump 9 by simply installing the adapter A that matches the blood pump 9 to be replaced on the pump driver body 10, and then installing the blood pump 9 on the adapter A. In this way, multiple blood pumps 9 can share the same pump driver body 10.

[0058] like Figure 4 and Figure 5 As shown, in a second aspect, an embodiment of the present application further provides a blood pump driving device, comprising the adapter A described in the first aspect; the driving device further comprises a pump driver body 10;

[0059] The pump driver body 10 includes a power mechanism 12 and a fourth magnetic rotating member 11. The first magnetic rotating member 5 and the fourth magnetic rotating member 11 in the pump driver body 10 are coupled to each other through magnetic force; the power mechanism 12 is connected to the fourth magnetic rotating member 11 through a second rotating shaft 13 to provide rotational power for the fourth magnetic rotating member 11; the rotation of the fourth magnetic rotating member 11 drives the first magnetic rotating member 5 and the second magnetic rotating member 3 to rotate in turn, and then drives the third magnetic rotating member to rotate.

[0060] In the embodiment of the present application, the first magnetic member and the second magnetic member are generally made of a magnetic material, such as neodymium iron boron, which has a large magnetic force. The first disk body and the second disk body are generally made of a magnetic conductive material, such as carbon steel. In addition to fixing the first magnetic member and the second magnetic member, the first disk body and the second disk body can also increase the magnetic force of the combination of all the first magnetic members and all the second magnetic members, thereby increasing the torque transmitted by magnetic coupling. The first magnetic member and the second magnetic member can be respectively distributed along the radial cylinder of the first disk body and the second disk body, or can be evenly distributed on the end faces of the first disk body and the second disk body, and the torque is transmitted through the end face magnetic coupling. In order to make full use of space, the embodiment of the present application preferably adopts a radial cylindrical distribution of magnetic coupling to transmit torque, which reduces the height space while transmitting a large torque.

[0061] The magnetic coupling method of the embodiment of the present application transmits torque, which can avoid direct mechanical connection of the transmission shaft and facilitate the operation of replacing different adapters.

[0062] Specifically, adapter A is disposed on pump driver body 10. The blood pump driver provided in the embodiment of the present application includes a power mechanism 12 and a fourth magnetic rotating member 11 within pump driver body 10 to drive the blood pump 9 in rotation. Power mechanism 12 drives second rotating shaft 13 to rotate. This is achieved by magnetically coupling fourth magnetic rotating member 11 with first magnetic rotating member 5, which in turn drives the impeller within blood pump 9 through magnetic coupling with second magnetic rotating member 3. In the embodiment of the present application, power mechanism 12 typically refers to a motor, which can be a brushed motor, a brushless motor, a stepper motor, a servo motor, or the like. Second rotating shaft 13 is the output shaft of power mechanism 12, but it can also be an independent shaft connected via a coupling.

[0063] In this embodiment, adapter A is removably mounted on a mounting bracket 27 of the pump driver body 10. A first rotating shaft is rotatably positioned within the center of the housing 1. The power mechanism 12 drives the fourth magnetic rotating member 11 to rotate. The fourth magnetic rotating member 11 and the first magnetic rotating member 5 transmit rotation via magnetic coupling. This embodiment transmits torque via magnetic coupling, which does not require particularly high coaxiality for rotational transmission, meeting the requirements for removability. Furthermore, the non-contact transmission method suppresses torsional vibrations transmitted through the shaft, further reducing vibration and noise.

[0064] In this embodiment of the present application, the fourth magnetic rotating member 11 includes a third disk body and a third magnetic member. The third magnetic member is disposed on the third disk body, and the first magnetic member and the third magnetic member are magnetically coupled. Furthermore, the first magnetic member and the magnetic member of the second magnetically coupled rotor disk can be composed of a combination of multiple small magnetic members or a multi-pole magnetized structure.

[0065] It should be further explained that the first magnetic member and the third magnetic member can usually have multiple uniform small magnetic members arranged in an alternating combination of N poles and S poles, so that a multi-polar magnetic coupling magnetic field can be formed to transmit a larger magnetic torque. Of course, the first magnetic member and the third magnetic member are respectively made of an annular magnetic material, and during magnetization, they are made into a multi-polar magnetic coupling magnetic field with alternating N poles and S poles through a specific magnetizing device. This can also achieve magnetic torque transmission, and at the same time, it can also save the operation of magnet assembly and combination, and avoid the problem of rotational imbalance caused by uneven magnetic force and uneven weight of each small magnet after combination. In addition, some other magnetic field combination torque transmission methods, such as the application of the structure of this application, also fall within the protection scope of this application, and will not be listed one by one here.

[0066] An embodiment of the present application provides a blood pump drive device that is compatible with a variety of pump heads. By setting adapters A of various specifications to match different blood pumps 9, the adapters A of various specifications can be quickly connected to the pump driver body 10 and can transmit torque through magnetic coupling, so that the pump driver body 10 can drive blood pumps 9 of different specifications. The cylindrical protrusion 24 on the outer shell 1 can realize accurate positioning of the adapter A to ensure quick connection.

[0067] As a preferred embodiment of the present application, the pump driver body 10 further includes a fixing seat 27, and the housing 1 is detachably mounted on the fixing seat 27. In other words, the adapter A is fixed to the fixing seat 27 of the pump driver body 10 through the housing 1.

[0068] In one embodiment of the present application, Figure 4 and Figure 10 As shown, a protrusion 24 is provided on a side of the housing 1 away from the blood pump 9 , a first groove 10 - 1 is provided on the fixing seat 27 , and the protrusion 24 is arranged in the first groove 10 - 1 to fix the adapter A.

[0069] In one embodiment of the present application, Figures 6 to 11 As shown, a plurality of second grooves 22 are provided on the housing 1 along the circumference of the protrusion 24, and a snap-in hole 21 and a snap-in platform 19 are provided in the second groove 22. A plurality of snap-in members 14 corresponding to the second grooves 22 are provided on the fixing seat 27 along the circumference of the first groove 10-1. The snap-in members 14 pass through the snap-in holes 21 and rotate along the center of the first groove 10-1 to form a snap connection with the snap-in platform 19 to fix the adapter A.

[0070] It should be noted that the second groove 22 and the corresponding clip 14 are both arranged around the central axis of the protrusion 24. Preferably, the number of the clip grooves and the clip 14 is 4, and the head of the clip 14 is in a certain "nail shape", that is, the head cylinder is larger than the middle connecting part cylinder, thus forming a step that can be used for fixation. At the same time, the end of the clip 14 can be provided with a connecting thread to connect and fix with the fixing seat 27, which can achieve uniform fixation, so that the adapter A is fixed evenly, the force is evenly applied and can withstand a large impact load.

[0071] As a preferred embodiment of this application, Figure 7 As shown, a slope 20 is provided at the connection position between the clamping hole 21 and the clamping platform 19. The slope 20 is not a spiral slope, which facilitates the clamping of the clamping member 14 to the clamping platform 19 during assembly, and can rely on the slope 20 to tighten the fixed adapter A.

[0072] As a preferred embodiment of this application, Figures 5 to 9 As shown, a locking device is also included, which includes a locking button 17, a locking hole 23 and a locking pin 16;

[0073] The locking button 17 is provided on the outer side of the fixing seat 27, and one end of the locking button 17 passes through the mounting hole to connect with the locking pin 16. The locking pin 16 is provided on the top surface of the fixing seat 27. The locking hole 23 is provided on the housing 1 at a position corresponding to the locking pin 16, and a locking boss 26 is provided in the locking hole 23.

[0074] like Figure 8 and Figure 9 As shown, when the locking button 17 is pressed by an external force in the pressing direction 25, the locking button 17 is rotated in the second direction 28, and the locking boss 26 is disengaged from the locking pin 16 to unlock the adapter A. When the external force is removed, as shown in FIG. Figure 5 and Figure 6 As shown, the locking button 17 is rotated in the first direction 18 , and the locking pin 16 is inserted into the locking hole 23 and blocked by the locking protrusion 26 to lock the adapter A.

[0075] The locking device provided in the embodiment of the present application utilizes a press-and-swing locking mechanism, which, in conjunction with the engaging hole 21, engaging platform 19, and engaging member 14, can achieve reliable locking, ensuring that accidental unlocking and lock failure are prevented after locking. The simple press-and-swing locking structure effectively prevents lock failure caused by jamming.

[0076] As a preferred embodiment of this application, Figure 5As shown, the locking button 17 is connected to the fixing seat 27 via a second elastic member 15. After the external force is removed, the second elastic member 15 is used to keep the locking button 17 in the locked position. In the embodiment of the present application, the second elastic member 15 is a spring.

[0077] The blood pump driver device provided herein also includes an identification module (not shown). Multiple adapters are provided with identification information for each adapter (not shown). The corresponding pump driver body 10 is provided with an identification device (not shown). When the adapter A and the pump driver body 10 are properly installed, the identification device can read the identification information and feedback it to the pump driver body 10. The control unit of the pump driver body 10 can then detect the corresponding model of adapter A by identifying the identification information, enabling better matching of the corresponding specifications and models of adapter A and blood pump 9 during the driving process. The identification module can be implemented using technologies such as magnetic strips or QR codes. For example, a magnetic strip or QR code carrying information is provided inside the adapter, and a reading device is provided on the pump driver body 10. Once the adapter A is properly installed, the information can be identified and read. Of course, the identification module can also be implemented by a relatively simple combination of multiple switches. For example, two switches can be used to identify three different adapter sizes. Different push-button switch contacts are provided on the adapters, and corresponding switch detection circuits are provided on the pump driver. By pressing the switch to switch between the three states of "on, off," "off, on," and "off, off," the three adapter sizes can be identified.

[0078] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made thereto. Therefore, such modifications and improvements, without departing from the spirit of the present invention, are intended to be within the scope of protection claimed herein.

Claims

1. An adapter for an extracorporeal blood circulation blood pump, characterized in that: include: The adapter includes a housing that is detachably mounted on the pump driver body, wherein a first magnetic rotating member and a second magnetic rotating member are mounted in the housing; the first magnetic rotating member and the second magnetic rotating member are connected via a first rotating shaft, and the first magnetic rotating member drives the second magnetic rotating member to rotate when the first rotating shaft rotates; The blood pump is provided with a third magnetic rotating member, and the second magnetic rotating member and the third magnetic rotating member are coupled to each other through magnetic force; The structure of the first magnetic rotating member is fixed, and the structure of the second magnetic rotating member is adapted and adjusted according to the third magnetic rotating member in the blood pump; the first rotating shaft includes a first rotating shaft body and a rolling member; A mounting portion is provided at a position on the bottom of the adapter corresponding to the first rotating shaft body; The rolling element is arranged in a space formed by the end of the first magnetic rotating element body and the mounting portion; The first rotating shaft body is fixedly or movably connected to the rolling element, and the rolling element is movably connected to the mounting portion; A protrusion is provided on a side of the housing away from the blood pump, a plurality of second grooves are provided around the protrusion, and a clamping hole and a clamping platform are provided in the second grooves.

2. The adapter according to claim 1, wherein: A bearing is provided at one end of the first rotating shaft body away from the rolling element, and both the bearing and the rolling element are provided with limiting devices.

3. A blood pump driving device, characterized in that: comprising the adapter according to any one of claims 1 to 2, wherein the drive device further comprises a pump driver body; The pump driver body includes a power mechanism and a fourth magnetic rotating member. The first magnetic rotating member and the fourth magnetic rotating member in the pump driver body are coupled to each other through magnetic force. The power mechanism is connected to the fourth magnetic rotating member through a second rotating shaft to provide rotational power for the fourth magnetic rotating member. The rotation of the fourth magnetic rotating member drives the first magnetic rotating member and the second magnetic rotating member to rotate in turn, thereby driving the third magnetic rotating member to rotate.

4. The blood pump driving device according to claim 3, characterized in that: The pump driver body further comprises a fixing seat, and the housing is detachably arranged on the fixing seat.

5. The blood pump driving device according to claim 3, characterized in that: The first magnetic rotating member includes a first disk body and a first magnetic member, and the first magnetic member is arranged on the first disk body; the second magnetic rotating member includes a second disk body and a second magnetic member, and the second magnetic member is arranged on the second disk body; the fourth magnetic rotating member includes a third disk body and a third magnetic member, and the third magnetic member is arranged on the third disk body, and the first magnetic member and the third magnetic member are coupled by magnetic force.

6. The blood pump driving device according to claim 4, characterized in that: The fixing seat is provided with a first groove, and the protrusion is arranged in the first groove to fix the adapter.

7. The blood pump driving device according to claim 6, characterized in that: A plurality of clamping members corresponding to the second groove are provided on the fixing seat along the circumference of the first groove. The clamping members pass through the clamping holes and rotate along the center of the first groove to form a clamping connection with the clamping platform to fix the adapter.

8. The blood pump driving device according to claim 4, characterized in that: Also included is a locking device, the locking device comprising a locking button, a locking hole, and a locking pin; The locking button is provided on the outer side of the fixing base, and one end of the locking button passes through the mounting hole and is connected to the locking pin, and the locking pin is provided on the top surface of the fixing base; the locking hole is provided on the housing at a position corresponding to the locking pin, and a locking boss is provided in the locking hole; When the locking button is pressed by an external force, the locking button is rotated in a first direction, and the locking boss is disengaged from the locking pin to unlock the adapter; when the external force is removed, the locking button is rotated in a second direction, and the locking pin is inserted into the locking hole and blocked by the locking boss to lock the adapter.

9. The blood pump driving device according to claim 8, characterized in that: The locking button is connected to the fixing seat via a second elastic member. When the external force is removed, the second elastic member is used to keep the locking button in a locked position.

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