Blood pump and organ transplantation equipment

Abstract

The utility model discloses a blood pump and organ transplantation equipment. The blood pump comprises a shell, a driving assembly and a control assembly. A containing cavity is defined by the shell. The driving assembly comprises a pump body arranged in the containing cavity and a pump head connected with the shell. The control assembly is arranged in the accommodating cavity and comprises a control panel and a power panel; the blood pump further comprises a supporting assembly, the supporting assembly is connected with the control panel, the power panel and the pump body, and the control panel, the power panel and the pump body are arranged at intervals through the supporting assembly. According to the blood pump, the heating sources in the three containing cavities of the power panel, the control panel and the pump body are arranged at intervals through the supporting assembly, so that heat dissipation channels are conveniently constructed in the gaps, heat can be rapidly discharged, the overheating phenomenon caused by heat accumulation is avoided, stable operation of the blood pump is guaranteed, and the service life of the blood pump is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to organ transplant accessory field especially, a blood pump and organ transplant equipment. BACKGROUND

[0002] In the related art, in the field of transplantation, the blood pump is mainly used for extracorporeal circulation, extracorporeal membrane oxygenation and other occasions requiring extracorporeal blood circulation, and is a key device for replacing the beating of the human heart and blood circulation, which has important significance for organ transplantation and donor preservation.

[0003] The blood pump usually comprises a closed shell, a control assembly and a driving assembly in the shell. In the prior art, the control assembly is connected with the driving assembly. During the operation of the blood pump, a large amount of heat is generated by the control assembly and the driving assembly. The heat accumulation at the connection between the control assembly and the driving assembly can cause overheating, affecting the normal operation of the control assembly and / or the driving assembly. SUMMARY

[0004] The utility model discloses at least one of the technical problems in the prior art. Therefore, the utility model provides a blood pump, and the power board, the control board and the pump body are arranged at intervals, which is beneficial to improving the heat dissipation efficiency and avoiding the overheating phenomenon caused by heat accumulation.

[0005] The utility model further provides an organ transplant equipment with the blood pump.

[0006] The blood pump according to the first aspect of the utility model comprises:

[0007] A shell defines a receiving cavity;

[0008] A driving assembly comprises a pump body arranged in the receiving cavity and a pump head connected with the shell;

[0009] A control assembly is arranged in the receiving cavity, and the control assembly comprises a control board and a power board;

[0010] The blood pump further comprises a support assembly, the support assembly is connected with the control board, the power board and the pump body respectively, and the control board, the power board and the pump body are arranged at intervals through the support assembly.

[0011] The blood pump according to the utility model embodiment has at least the following beneficial effects:

[0012] The application is characterized in that the heat sources in the three accommodating cavities of the power panel, the control panel and the pump body are spaced by the support assembly, so that a heat dissipation channel is formed in the gap, heat is quickly discharged, and the heat accumulation caused by overheating is avoided, thereby ensuring the stable operation of the blood pump and prolonging the service life of the blood pump.

[0013] According to some embodiments of the present application, the shell further comprises a connecting seat provided with a first through hole, and the pump head is inserted into the first through hole and closes the first through hole.

[0014] According to some embodiments of the present application, the connecting seat is provided with a first limiting groove, and the pump head comprises a first branch pipe, when the pump head is connected with the connecting seat, the first branch pipe is located in the first limiting groove.

[0015] Furthermore, the size of the first limiting groove along the circumference of the first through hole is greater than the outer diameter of the first branch pipe, the pump head can rotate relative to the connecting seat, and the first limiting groove is used for limiting the rotation range of the pump head.

[0016] According to some embodiments of the present application, the outer periphery of the pump head is provided with a clamping protrusion, the connecting seat is provided with a clamping groove, the inner wall of the first through hole is further provided with an annular groove communicating with the clamping groove, and when the pump head rotates relative to the connecting seat, the clamping protrusion slides in the annular groove.

[0017] According to some embodiments of the present application, a first abutting portion is arranged in the annular groove, the clamping protrusion has a first end face and a second end face along the circumference of the pump head, when the pump head rotates to a first angle, the first end face abuts against the first abutting portion, and the connecting seat further comprises an abutting piece capable of extending radially along the first through hole and abutting against the second end face to limit the rotation of the pump head.

[0018] According to some embodiments of the present application, the blood pump further comprises a control panel, the control panel is connected with the shell and electrically connected with at least one of the control panel, the power panel and the pump head.

[0019] According to some embodiments of the present application, a side wall of the shell is provided with a notch communicating with the accommodating cavity, and the control panel is embedded in the notch and closes the notch.

[0020] According to some embodiments of the present application, the blood pump comprises a wiring terminal, the wiring terminal is connected with the power panel, the shell is provided with a second through hole, the wiring terminal is arranged through the second through hole, and the wiring terminal is used for connecting with an external cable.

[0021] According to some embodiments of the present application, the pump body is a magnetic coupling driver, the pump head comprises an impeller, and the magnetic coupling driver is used to drive the impeller to rotate so as to drive blood flow.

[0022] According to the organ transplant device of the second aspect of the present application, the organ transplant device comprises:

[0023] An organ container for accommodating an ex vivo organ;

[0024] The blood pump according to any one of the above embodiments;

[0025] A blood supply vessel, one end of which is in communication with the blood pump, and the other end of which is used to communicate with the ex vivo organ.

[0026] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0027] The present application will be further described below in combination with the drawings and embodiments, wherein:

[0028] Figure 1 A structural schematic diagram of the blood pump of the present application;

[0029] Figure 2 A structural schematic diagram of detachable connection of the pump head of the present application;

[0030] Figure 3 An exploded schematic diagram of the blood pump of the present application;

[0031] Figure 4 A top view schematic diagram of the blood pump of the present application.

[0032] REFERENCE NUMERALS:

[0033] Housing 100; main body part 110; notch 111; connecting seat 120; first through hole 121; first limiting groove 122; clamping groove 123; abutting piece 124; bottom shell 130; second through hole 131;

[0034] Driving assembly 200; pump body 210; pump head 220; first branch pipe 221; second branch pipe 222; clamping protrusion 223;

[0035] Control assembly 300; control panel 310; power panel 320;

[0036] Support assembly 400; support piece 410;

[0037] Control panel 500;

[0038] The wiring terminal 600;

[0039] The external cable 700; DETAILED DESCRIPTION

[0040] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0041] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by the upper, lower, front, rear, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0042] In the description of the present application, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only used for distinguishing the technical features for the purpose, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0043] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0044] In the description of the present application, the description of the reference terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] In the related art, in the field of transplantation, blood pumps are mainly used in extracorporeal circulation, extracorporeal membrane oxygenation and other occasions requiring extracorporeal blood circulation, and are a key device for replacing the beating of human heart and blood circulation, which has important significance for organ transplantation and donor preservation.

[0046] A blood pump typically includes a sealed housing and a control assembly and a drive assembly located within the housing. In existing technologies, the control assembly and the drive assembly are connected. During operation, these two assemblies generate a significant amount of heat. Heat accumulation at the connection between the two assemblies can cause overheating, impacting the normal operation of the control and / or drive assemblies.

[0047] In order to solve the above problems, the first embodiment of the present application proposes a blood pump, such as Figures 1 to 4 As shown, the blood pump includes a housing 100, a drive assembly 200 and a control assembly 300. The drive assembly 200 includes a pump head 220 and a pump body 210. The pump head 220 is connected to a first branch pipe 221 and a second branch pipe 222. Either one of the first branch pipe 221 and the second branch pipe 222 is for liquid inlet, while the other one is for liquid outlet. Figure 2 In the illustrated embodiment, the first branch pipe 221 serves as a liquid outlet pipe. The control assembly 300 includes a power board 320 and a control board 310. The power board 320 is electrically connected to an external power source via an external cable 700, and is also electrically connected to the pump body 210 and the control board 310 within the housing 100 to distribute current and voltage, thereby enabling on-off control of the current flowing through the pump body 210. The control board 310 is electrically connected to the power board 320 and the pump body 210, respectively, and can control the power board 320 or the pump body 210 to perform corresponding actions upon receiving instructions. For example, when the control board 310 receives an instruction to adjust the operating speed of the pump body 210, the speed of the pump body 210 is controlled to change accordingly.

[0048] like Figure 3 As shown, the housing 100 includes a main body 110, a connecting base 120, and a bottom shell 130. The main body 110 has openings at both the top and bottom. The top of the main body 110 is connected to the connecting base 120 and is connected to the pump head 220 of the drive assembly 200 via the connecting base 120. The bottom of the main body 110 is connected to the bottom shell 130, and the bottom opening is sealed by the bottom shell 130. The main body 110 defines an accommodating cavity, in which the pump body 210 of the drive assembly 200 and the control assembly 300 are both disposed. The housing 100 can be made of a metal material with good heat dissipation performance, thereby improving the heat dissipation efficiency in the accommodating cavity.

[0049] In order to avoid overheating caused by heat accumulation between the power board 320, the control board 310 and the pump body 210, the blood pump of the present application is also provided with a support assembly 400, such as Figure 3As shown, the support assembly 400 is connected with the power board 320, the control board 310 and the pump body 210 respectively, and the control board 310, the power board 320 and the pump body 210 are spaced apart by the support assembly 400, so that the heat generated by the control board 310, the power board 320 and the pump body 210 can be dissipated via the gap. Compared with the prior art in which two heat sources are directly abutted, the three heat sources in the present application are spaced apart, which is beneficial to heat dissipation.

[0050] It should be noted that, in the embodiment as shown, Figure 3 In the embodiment as shown, the power board 320, the control board 310 and the pump body 210 are sequentially arranged from the bottom to the top of the shell 100, wherein the power board 320 is arranged in parallel with the control board 310, and the control board 310 is arranged in parallel with the bottom surface of the pump body 210. This kind of spacing arrangement can not only construct parallel heat dissipation channels, but also improve the space utilization rate in the accommodation cavity. In other embodiments, the arrangement order of the power board 320 and the control board 310 can also be changed, for example, the control board 310 and the power board 320 are sequentially arranged from the bottom to the top of the shell 100.

[0051] The support assembly 400 includes a plurality of support members 410, each of which can be an integral column. Each column is arranged along the circumference of the power board 320 and the control board 310. One end of each column is connected with the power board 320, the column is arranged through the control board 310, and the other end is connected with the pump body 210. The outer circumferential wall of the column can be provided with a stepped surface, which can limit the control board 310 during installation to ensure the spacing between the power board 320 and the control board 310. Alternatively, the power board 320 and the control board 310 can be fixedly connected with the support member 410 by means of gluing, hot melting or the like. In other embodiments, each support member 410 can also be composed of a plurality of columns. For example, as shown in the embodiment, Figure 3 As shown in the embodiment, the support member 410 can be arranged without passing through the control board 310. Each support member 410 can include two columns arranged on different sides of the control board 310 and connected with the power board 320 and the control board 310 respectively, so as to ensure the spacing between the power board 320 and the control board 310 and the spacing between the control board 310 and the pump body 210. This kind of arrangement does not need to punch holes on the control board 310.

[0052] Based on the above, the power board 320, the control board 310 and the pump body 210 are spaced apart by the support assembly 400, so as to construct a heat dissipation channel in the gap therebetween, which is beneficial to the rapid discharge of heat and avoids the overheating phenomenon caused by heat accumulation, thereby ensuring the stable operation of the blood pump and improving the service life of the blood pump.

[0053] In some embodiments, the housing 100 further comprises a connecting seat 120, as shown in Figure 2 and Figure 3 The connecting seat 120 is a part for connecting with the pump head 220, and the connecting seat 120 and the main body part 110 of the housing 100 can be integrally formed or separately manufactured and then connected as a whole structure. In the illustrated embodiment, the connecting seat 120 is further provided with a relatively complex groove structure, and therefore the connecting seat 120 and the main body part 110 are separately manufactured and then connected as a whole structure by clamping, bonding or the like, thereby reducing the manufacturing difficulty of the housing 100.

[0054] The connecting seat 120 is provided with a first through hole 121, which is a stepped hole. The pump head 220 is inserted into the first through hole 121, and the bottom surface of the pump head 220 abuts against the stepped surface of the first through hole 121, thereby achieving the connection of the pump head 220 and the connecting seat 120. After the pump head 220 is installed on the connecting seat 120, the first through hole 121 is closed to relatively seal the accommodation cavity, so as to avoid dust, liquid and the like from entering the accommodation cavity to cause component failure. In the present embodiment, the pump head 220 and the connecting seat 120 are connected in a detachable manner, for example, threaded connection, clamping or the like, so as to facilitate the replacement of the pump head 220. In other embodiments, the pump head 220 and the connecting seat 120 can also be fixedly connected, thereby ensuring the sealing of the accommodation cavity.

[0055] Further, as shown in Figures 2 to 4 The top surface of the connecting seat 120 is provided with a first limiting groove 122 along the edge of the first through hole 121, and the pump head 220 comprises a first branch pipe 221. Since the first branch pipe 221 is protrudingly arranged on the outer circumferential surface of the pump head 220, the first limiting groove 122 is used for avoiding the first branch pipe 221. When the pump head 220 is connected with the connecting seat 120, the first branch pipe 221 is located in the first limiting groove 122. It should be noted that the size of the first limiting groove 122 along the circumference of the first through hole 121 is greater than the outer diameter of the first branch pipe 221, and the pump head 220 can rotate relative to the connecting seat 120, so that the first branch pipe 221 can slide in the first limiting groove 122, and the groove walls at both ends of the first limiting groove 122 are used for limiting the rotation range of the pump head 220.

[0056] The rotatable pump head 220 is beneficial for the installation of the blood pump and has higher installation freedom. On the other hand, during the operation of the blood pump, the highest point of the flow channel in the pump head 220 will collect bubbles, and the rotation of the pump head 220 can find the bubble collection area to discharge the bubbles.

[0057] In some embodiments, the outer circumferential protrusion of the pump head 220 is provided with a clamping protrusion 223, and the hole wall of the first through hole 121 of the connecting seat 120 is provided with a clamping groove 123 extending in the axial direction, and when the pump head 220 is assembled to the connecting seat 120, the clamping protrusion 223 is inserted into the position corresponding to the clamping groove 123. The inner wall of the first through hole 121 is further provided with an annular groove (not shown in the figure) communicating with the clamping groove 123, and the annular groove extends along the circumferential direction of the first through hole 121. Thus, when the clamping protrusion 223 of the pump head 220 is inserted into the position by the clamping groove 123, it is located at the intersection of the clamping groove 123 and the annular groove. When the pump head 220 rotates relative to the connecting seat 120, the clamping protrusion 223 slides in the annular groove.

[0058] Further, when the clamping protrusion 223 slides in the annular groove, the clamping protrusion 223 is abutted by the two opposite groove walls of the annular groove in the axial direction of the first through hole 121, so that the displacement of the clamping protrusion 223 in the axial direction of the first through hole 121 is limited. The annular groove is provided with a first abutting portion, which can be an end wall of the annular groove or a protrusion provided in the annular groove. The clamping protrusion has a first end face and a second end face along the circumferential direction of the pump head 220, and when the pump head 220 is inserted into the connecting seat 120 and rotated to a first angle in a first direction (clockwise or counterclockwise), the first end face abuts against the first abutting portion, so that the pump head 220 cannot continue to rotate in the first direction. The connecting seat 120 further comprises an abutting member 124, which can extend radially along the first through hole 121 when the pump head 220 is rotated to the first angle, and abut against the second end face of the clamping protrusion 223, so as to limit the reverse rotation of the pump head in the first direction. Based on the abutting action of the first abutting portion and the abutting member, the rotation of the pump head 220 is limited, and based on the abutting action of the two opposite groove walls of the annular groove, the movement of the pump head 220 is limited, so that the pump head 220 cannot be separated from the connecting seat 120.

[0059] In some embodiments, as shown in Figure 1 and Figure 3 The blood pump further comprises a control panel 500 for adjusting the working parameters of the blood pump. The control panel 500 is connected to the shell 100 and electrically connected to at least one of the control board 310, the power board 320 and the pump head 220. It should be noted that the control panel 500 can be attached to the shell 100, and the shell 100 is provided with a hole for the communication cable to pass through, and the communication cable is used for signal transmission between the control panel 500 and the components in the accommodating cavity. In other embodiments, as shown in Figure 3As shown, the side wall of the shell 100 is provided with an opening 111 communicating with the accommodating cavity, and the control panel 500 is embedded in the opening 111 and closes the opening 111. Thus, the control panel 500 cooperates with the shell 100 to define the closed accommodating cavity, and compared with the scheme of being attached to the shell 100, the scheme of being embedded in the opening 111 can reduce the volume of the blood pump on the one hand so that the control panel 500 can utilize the space in the accommodating cavity, and on the other hand, shorten the path of heat diffusion to the external environment so that the heat can be dissipated after passing through the control panel 500, thereby improving the heat dissipation efficiency.

[0060] In some embodiments, the blood pump comprises a wiring terminal 600 connected with the power board 320, and the shell 100 is provided with a second through hole 131, as shown in Figure 3 The second through hole 131 is provided on the bottom shell 130. The wiring terminal 600 is arranged through the second through hole 131 and used for connecting with an external cable 700. It should be noted that, unlike the blood pump in the prior art which has multiple wiring terminals 600 such as power wiring terminals 600 and control signal communication terminals, the blood pump in the present embodiment only has one wiring terminal 600 which can be used for transmitting electric energy and signals, for example, the wiring terminal 600 can be a Lemo plug. Correspondingly, the external cable 700 also needs to integrate the function of transmitting electric energy and signals. Thus, external connection is realized through one cable, which greatly reduces the number of cables of the blood pump, thereby facilitating the transportation of the blood pump and improving the portability of the blood pump.

[0061] In some embodiments, the pump body 210 is a magnetic coupling driver, and the pump head 220 comprises an impeller. Through the magnetic coupling effect, the torque generated by the magnetic coupling driver is transmitted to the impeller in a non-contact manner, thereby driving the impeller to rotate at a high speed to realize the blood pumping function. The blood pump with such a structure reduces mechanical wear and the risk of blood leakage, thereby improving the safety of blood treatment. Moreover, the magnetic coupling driver can stably provide the required pressure and flow, thereby meeting the clinical requirements.

[0062] The second aspect of the present application also provides an organ transplantation device, which comprises an organ container, a blood pump and a blood supply pipe. The organ container is used for accommodating an isolated organ. One end of the blood supply pipe is in communication with the blood pump, and the other end is used for communicating with the isolated organ, so as to supply blood to the isolated organ and maintain the activity of the isolated organ.

[0063] The utility model embodiment has been explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, still can make various changes in the knowledge range of the ordinary skill in the art who possesses under the premise of not departing from the utility model's tenet. Besides, the embodiment and the feature in the embodiment of the utility model can be combined mutually under the condition of not conflicting.

Claims

1. Blood pump, characterized in that The blood pump comprises: a housing defining a receiving cavity; a driving assembly comprising a pump body arranged in the receiving cavity and a pump head connected with the housing; a control assembly arranged in the receiving cavity, the control assembly comprising a control board and a power board; wherein the blood pump further comprises a support assembly, the support assembly being connected with the control board, the power board and the pump body respectively, and the control board, the power board and the pump body are arranged at intervals through the support assembly.

2. The blood pump of claim 1, wherein, The housing further comprises a connecting seat provided with a first through hole, and the pump head is inserted into the first through hole and closes the first through hole.

3. The blood pump of claim 2, wherein, The connecting seat is provided with a first limiting groove, and the pump head comprises a first branch pipe, when the pump head is connected with the connecting seat, the first branch pipe is located in the first limiting groove; and the size of the first limiting groove along the circumference of the first through hole is greater than the outer diameter of the first branch pipe, the pump head can rotate relative to the connecting seat, and the first limiting groove is used for limiting the rotation range of the pump head.

4. The blood pump of claim 3, wherein, The outer periphery of the pump head is provided with a clamping protrusion, the connecting seat is provided with a clamping groove, and the inner wall of the first through hole is further provided with an annular groove communicating with the clamping groove, when the pump head rotates relative to the connecting seat, the clamping protrusion slides in the annular groove.

5. The blood pump of claim 4, wherein, The annular groove is provided with a first abutting portion, and the clamping protrusion has a first end face and a second end face along the circumference of the pump head, when the pump head rotates to a first angle, the first end face abuts against the first abutting portion, and the connecting seat further comprises an abutting piece which can protrude along the radial direction of the first through hole and abut against the second end face to limit the rotation of the pump head.

6. The blood pump of claim 1, wherein, The blood pump further comprises a control panel, the control panel is connected with the housing and electrically connected with at least one of the control board, the power board and the pump head.

7. The blood pump of claim 6, wherein, The side wall of the housing is provided with a notch communicating with the receiving cavity, and the control panel is embedded in the notch and closes the notch.

8. The blood pump of claim 1, wherein, The blood pump comprises a wiring terminal connected with the power board, the housing is provided with a second through hole, and the wiring terminal is arranged through the second through hole, the wiring terminal is used for connecting with an external cable.

9. The blood pump of claim 1, wherein, The pump body is a magnetic coupling driver, the pump head comprises an impeller, and the magnetic coupling driver is used for driving the impeller to rotate to drive the blood flow.

10. An organ transplant device, characterized by, The blood pump comprises: an organ bin for accommodating an isolated organ; any one of claims 1 to 9; a blood supply pipe, one end of the blood supply pipe being in communication with the blood pump, and the other end being used for communicating with the isolated organ.

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