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CN109847128A - A kind of blood pump and cardiopulmonary bypass system - Google Patents

A kind of blood pump and cardiopulmonary bypass system Download PDF

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Publication number
CN109847128A
CN109847128A CN201910170803.4A CN201910170803A CN109847128A CN 109847128 A CN109847128 A CN 109847128A CN 201910170803 A CN201910170803 A CN 201910170803A CN 109847128 A CN109847128 A CN 109847128A
Authority
CN
China
Prior art keywords
pump head
recognition component
pump
drive
connector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910170803.4A
Other languages
Chinese (zh)
Other versions
CN109847128B (en
Inventor
王维宁
李晓坤
徐玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Saitong Medical Technology Co Ltd
Original Assignee
Jiangsu Saitong Medical Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Saitong Medical Technology Co Ltd filed Critical Jiangsu Saitong Medical Technology Co Ltd
Priority to CN201910170803.4A priority Critical patent/CN109847128B/en
Priority to PCT/CN2019/078098 priority patent/WO2020177149A1/en
Publication of CN109847128A publication Critical patent/CN109847128A/en
Application granted granted Critical
Publication of CN109847128B publication Critical patent/CN109847128B/en
Active legal-status Critical Current
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/20Type thereof
    • A61M60/205Non-positive displacement blood pumps
    • A61M60/216Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller
    • A61M60/226Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller the blood flow through the rotating member having mainly radial components
    • A61M60/232Centrifugal pumps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10Location thereof with respect to the patient's body
    • A61M60/104Extracorporeal pumps, i.e. the blood being pumped outside the patient's body
    • A61M60/109Extracorporeal pumps, i.e. the blood being pumped outside the patient's body incorporated within extracorporeal blood circuits or systems
    • A61M60/113Extracorporeal pumps, i.e. the blood being pumped outside the patient's body incorporated within extracorporeal blood circuits or systems in other functional devices, e.g. dialysers or heart-lung machines
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/40Details relating to driving
    • A61M60/403Details relating to driving for non-positive displacement blood pumps
    • A61M60/422Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being electromagnetic, e.g. using canned motor pumps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M60/00Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/50Details relating to control
    • A61M60/508Electronic control means, e.g. for feedback regulation
    • A61M60/538Regulation using real-time blood pump operational parameter data, e.g. motor current

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Cardiology (AREA)
  • Biomedical Technology (AREA)
  • Anesthesiology (AREA)
  • Mechanical Engineering (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pulmonology (AREA)
  • External Artificial Organs (AREA)

Abstract

The invention discloses a kind of blood pump and cardiopulmonary bypass systems, the blood pump includes the other element of pump head drive, pump head and pump head, the pump head drive has the second recognition component of corresponding first recognition component, second recognition component identifies first recognition component, and recognition result is generated, which makees flowing mode according to what the recognition result controlled the pump head.The cardiopulmonary bypass system uses blood pump of the invention.Blood pump of the invention is to be equipped with the first recognition component in pump head adapter, in the second recognition component is arranged in pump head drive, the first recognition component is identified by the second recognition component to control the problem of pump head drive drives pump head actuation, so energy medical assistance personnel operation, reduces maloperation.

Description

A kind of blood pump and cardiopulmonary bypass system
Technical field
The present invention relates to the medical instruments field supported for extracorporeal life more particularly to a kind of blood pump and cardiopulmonary bypass systems System.
Background technique
Cardiopulmonary bypass system, also known as extracorporeal membrane oxygenation (extracorporeal membrane oxygenation, It ECMO), is a kind of mechanical cycles ancillary technique that can be percutaneously placed in.Cardiopulmonary bypass system is usually by control host, centrifugation pump head It is constituted with three parts of membrane oxygenator.Control host controls and monitors the operation of cardiopulmonary bypass system, is centrifuged pump head For recycling the blood of inside and outside, membrane oxygenator is used to provide the dioxy in the blood being discharged in oxygen and permutoid Change carbon.The venous blood of cardiopulmonary bypass system primary drainage patient's body merges by membrane oxygenator oxygen and excludes blood to external Blood recovery patient's body after carbon dioxide in liquid.Different according to the approach of blood recovery, cardiopulmonary bypass system mainly has Vein is to vein (venovenous ECMO, VV-ECMO) and vein to artery (venous-arterial ECMO, VA-ECMO) Two kinds of forms, the former only has Respiration assistance effect, and the latter has circulation and Respiration assistance effect simultaneously.
Blood pump includes pump head drive and pump head at present, and pump head is connect with pump head drive, but there are many specification of pump head, often A kind of pump head of specification has a corresponding pump head drive, that is, pump head and the corresponding pump head drive shape of each specification At one group of blood pump.The pump head of each specification has different use rules, such as rotation direction or velocity of rotation.With work pump head When specification increases, that is, it will form the blood pump of plurality of specifications, healthcare givers needs that longer time is spent to be familiar with a variety of blood pumps Specification is easy to happen the problem of maloperation in use process.
Summary of the invention
The embodiment of the present invention provides a kind of blood pump and cardiopulmonary bypass system, healthcare givers a variety of with the specification for solving blood pump The operation for needing to be familiar with the blood pump of each specification, the problem of being easy to happen maloperation.
In order to solve the above-mentioned technical problem, the present invention is implemented as follows:
In a first aspect, providing a kind of blood pump comprising pump head drive, pump head and pump head adapter, pump head adaptation Device connects the pump head drive and the pump head, which has the first recognition component, which, which has, corresponds to Second recognition component of first recognition component, which identifies first recognition component, and generates recognition result, The pump head drive controls the actuation of the pump head according to the recognition result.
Second aspect provides a kind of cardiopulmonary bypass system, uses blood pump as described in relation to the first aspect.
In embodiments of the present invention, blood pump of the invention is to be equipped with the first recognition component in pump head adapter, in pump head Second recognition component is set on driver, the first recognition component is identified by the second recognition component to control pump head drive drive The problem of pump head actuation, so energy medical assistance personnel operation, reduction maloperation.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the perspective view of the blood pump of first embodiment of the invention;
Fig. 2 is the exploded view of the blood pump of first embodiment of the invention;
Fig. 3 is the cross-sectional view of the blood pump of first embodiment of the invention;
Fig. 4 is the cross-sectional view of the blood pump of second embodiment of the invention;
Fig. 5 is the cross-sectional view of the blood pump of third embodiment of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts Example, shall fall within the protection scope of the present invention.
Fig. 1 and Fig. 2 is please referred to, is the perspective view and exploded view of the blood pump of first embodiment of the invention;As shown, this The blood pump 1 of embodiment includes pump head drive 10, pump head 11 and the pump head adapter 12 with pump head drive 10 and pump head 11, pump Head adapter 12 have the first connector 121 and with the second connector 122, the first connector 121 is arranged in the second connector 122 It is interior.First connector 121 is connect with pump head drive 10, and the second connector 122 is connect with pump head 11.First connector 121 is logical The driving of pump head drive 10 is crossed, the first connector 121 can be rotated relative to the second connector 122, so that pump head 11 starts operation. The structure of pump head adapter 12, when replacing the pump head 11 of another specification, is only replaced depending on the specification of pump head 11 Pump head 11 and pump head adapter 12, without the pump head drive 10 more renewed.Each pump head adapter 12 and pump head 11 The corresponding structure of structure be it is different according to the specification of pump head 11, each pump head adapter 12 is connect with pump head drive 10 Structure be fixed.
Said pump head adapter 12 has the first recognition component 14, has the second recognition component 15 in pump head drive 10, Second recognition component 15 generates recognition result to identify the first recognition component 14, this recognition result shows the work of pump head 11 Dynamic rule, such as rotation direction, velocity of rotation, the parameter of beating driving or the automatic parameter for realizing zero delivery.Pump head drive 10 The actuation of the first connector 121 is controlled according to recognition result, and then controls the actuation of pump head 11.Blood pump 1 further includes controller 13, The motor 102 and the second recognition component 15 of controller 13 and pump head drive 10 are electrically connected, and controller 13 is according to recognition result Control the actuation of motor 102.Controller 13 may be selected to be set in the drive shell 101 of pump head drive 10, can also be with pump Head driver 10 is separately positioned, and transmits signal by wired or wireless way and motor 102 and the second recognition component 15.
In this present embodiment, the first recognition component 14 is set to pump head such as RFID label tag or two dimensional code for electronic tag Adapter 12 is towards on the surface of pump head drive 10.Second recognition component 15 depending on the specification of the first recognition component 14, It can be RFID reader or two-dimensional code reader, be set to pump head drive 10 and corresponding with the first recognition component 14, with knowledge Other first recognition component 14.Certainly above-mentioned is only one embodiment of the invention, the first recognition component 14 and the second recognition component 15 Setting position can according to demand and change, as long as the first recognition component 14 is set on pump head adapter 12, second identification member Part 15 is set in pump head drive 10.
Second recognition component 15 identifies the first recognition component 14, and generates identification signal, and the transmission of the second recognition component 15 is known For level signal to controller 13, controller 13 generates control signal according to identification signal, and transmission of control signals is to motor 102, electric Machine 102 drives the rotation of the first connector 121 according to control signal, and the first connector 121 drives 11 actuation of pump head.
It is the cross-sectional view of the blood pump of first embodiment of the invention also referring to Fig. 3;As shown, pump head 11 includes Shell 111 and the impeller 112 being set in shell 111, shell 111 have blood input pipe 1111 and blood efferent duct 1112, Blood input pipe 1111 is located at the top of impeller 112, and blood efferent duct 1112 is located at the periphery of impeller 112.The running of pump head 11 It is that blood enters in shell 111 from blood input pipe 1111, impeller 112 of the blood through rotating generates centrifugal blood, centrifugal blood It is flowed out from blood efferent duct 1112.The rotation of impeller 112 is driven by pump head drive 10 in pump head 11.
The bottom of impeller 112 has driving portion 1121, this is only one embodiment of the invention, and driving portion 1121 is not limited to set It is placed in the bottom of impeller 112, can be set in the side of impeller 112.When pump head 11 is set in the second connector 122, It is contact connection or contactless connection between the driving portion 1121 of pump head 11 and the first connector 121, wherein contact connects It is connected between the driving portion 1121 of pump head 11 and the first connector 121 and is connected by mechanical structure, for example: driving portion 1121 For pillar, the first connector 121 has the groove of corresponding driving portion 1121, is inserted in for the driving portion 1121 of pillar positioned at first In the groove of connector 121, such first connector 121 drives pump head 11 and the driving portion 1121 with pump head 11 is connect Impeller 112 rotates.It is contactless to be connected as magnetic coupling or electromagnetic coupling, for example: driving portion 1121 has magnetic substance (figure In do not show), there are on the first connector 121 multiple magnetic substances 1210 corresponding with driving portion 1121, pass through the first connector 121 Multiple magnetic substances 1210 and driving portion 1121 magnetic substance polar relationship and drive the impeller 112 of pump head 11 to rotate.Yu Ben In embodiment, magnetic coupling is used between the driving portion 1121 of pump head 11 and the first connector 121.
Second connector 122 of the present embodiment is fixed base frame, and fixed base frame has accommodation groove 1221, accommodation groove 1221 Bottom has perforation 1222.First connector 121 includes that driving turntable 1211 and connection shaft 1212 connect shaft 1212 and be arranged In on the surface of driving turntable 1211, the central point of driving turntable 1211 is located on the central axis of connection shaft 1212.Driving Multiple magnetic substances 1210 are embedded in turntable 1211, in this present embodiment, driving turntable 1211 has locating slot 1214, multiple magnetic Property body 1210 is alternatively arranged in the side wall of locating slot 1214.
Pump head drive 10 includes drive shell 101 and motor 102, and drive shell 101 has mounting portion 1011, Yu Benshi It applies in example, mounting portion 1011 is opening.Motor 102 is set in drive shell 101, and motor 102 has mandrel 1021, mandrel 1021 towards mounting portion 1011.Mandrel 1021 is equipped with jointing 103, jointing 103 towards one end of mounting portion 1011 Both ends be respectively provided with connecting hole 1031.One end of mandrel 1021 towards mounting portion 1011 is inserted in 103 one end of jointing Connecting hole 1031 makes jointing 103 be installed on mandrel 1021 towards on one end of mounting portion 1011.
When pump head adapter 12 is connect with pump head drive 10, the second connector 122 is first set to pump head drive 10 It is set on mounting portion 1011, perforation 1222 is corresponding with another connecting hole 1031 of jointing 103.First connector 121 Connection shaft 1212 pass through perforation and 1222 and be inserted in corresponding connecting hole 1031, while turntable 1211 being driven to be located at accommodating In slot 1221, the central axis of the central axis and mandrel 1021 that connect shaft 121 is located on same line.Above-mentioned motor 102 The connection of mandrel 1021 and the connection shaft 1212 of the first connector 121 is connected by jointing 103, certain mandrel 1021 It can be directly connected to shaft 1212 is connect, such as mandrel 1021 is inserted in one end of connection shaft 1212.The connection of the present embodiment Mode can increase mandrel 1021 and the stable connection for connecting shaft 1212.
After completion pump head adapter 12 is connect with pump head drive 10, pump head 11 is assembled in pump head adapter 12 and is pumped The bottom surface of first 11 shell 111 is connected on the surface around the accommodation groove 1221 of the second connector 122, the driving of impeller 112 Portion 1121 is entered in the locating slot 1214 of the first connector 121 by the accommodation groove 1221 of the second connector 122, the second connector 122, to support pump head 11, make to can be carried out noncontact driving pump between driving portion 1121 and the turntable 1211 of the first connector 121 First 11 driving portion 1121 is located in locating slot 1214.It the polarity of the magnetic substance 1210 of above-mentioned driving turntable 1211, quantity and sets Seated position be depending on the polarity for the magnetic substance being embedded in driving portion 1121, position and quantity, above-mentioned driving turntable 1211 The setting of magnetic substance 1210 is only one embodiment of the invention, should not be as limit.
After the assembling for completing blood pump 1, the motor 102 of pump head drive 10 passes through mandrel 1021 and the company that connect shaft 1212 It connects and the first connector 101 is driven to rotate, multiple magnetic substances 1210 of the first connector 121 and multiple magnetism of driving portion 1121 Body effect, to drive the impeller 112 of pump head 11 to rotate.Above-mentioned locating slot 1214 mainly prevents pump head 11 to be easily separated from when actuation First connector 121.
When concrete application, the bottom of the second connector 122 also has positioning convex portion 1223, the perforation of 1221 bottom of accommodation groove 1222 run through positioning convex portion 1223, when the second connector 122 is set to the drive shell 101 of pump head drive 10, convex Portion 1223 is directly arranged in mounting portion 1011, without the movement additionally aligned again.The connection shaft of first connector 121 It is equipped with bearing 1224 between 1212 and perforation 1222, connection shaft 1212 is enable swimmingly to rotate in perforation 1222.
Side surface and accommodation groove between the side surface of driving portion 1121 and the side wall of locating slot 1214 with turntable 1211 Gap is all had between 1221 side wall, driving portion 1121 is avoided to generate friction and turntable with locating slot 1214 in rotation process 1211 generate friction with accommodation groove 1221 in rotation process.
The top of second connector 122 is equipped with stopper protrusion 1225, the table of stopper protrusion 1225 and 1221 periphery of accommodation groove Face forms limiting slot 1226, and limiting slot 1226 is used to accommodate the shell 111 of pump head 11, avoids the shell 111 of pump head 11 with impeller 112 rotations.Stopper protrusion 1225 has a notch 12251, and the blood efferent duct 1112 of the shell 111 of pump head 11 is from notch 12251 It is pierced by.Stopper protrusion 1225 has slot 12252, and slot 12252 is to accommodate locating part 1227, and locating part 1227 is far from slot 12252 one end presses on the surface of the shell 111 of pump head 11, avoids pump head 11 along the rotation direction of vertical impeller 112 Direction is detached from pump head adapter 12.When concrete application, the outer peripheral edge of the shell 111 of pump head 11, which is additionally provided with, abuts protrusion 1113, limit The position one end of part 1227 far from slot 12252, which directly presses on, to abut on protrusion 1113, and pump head 11 is avoided to be detached from pump head adapter 12.It is additionally provided with carrying handle 1012 in the drive shell 101 of the pump head drive 10 of the present embodiment, user passes through carrying handle 1012 hand-held pump head drives 10 or blood pump 1, reach portable effect.
Fig. 4 and Fig. 5 is please referred to, is the cross-sectional view of the blood pump of second embodiment of the invention;As shown, the present embodiment Blood pump 1 and the blood pump difference of above-described embodiment are that the actuation of the pump head drive of above-described embodiment is to use to be driven by electricity, this The actuation of the pump head drive 10 of embodiment is using driven by shaking, and the pump head 11 of such the present embodiment can lead under power failure Cross the driving of hand-rail type pump head drive 10.The mounting portion 1011 of the drive shell 101 of the pump head drive 10 of the present embodiment is recessed The bottom of slot, mounting portion 1011 has opening 10111.Rotating member 104 is installed in the drive shell 101 of pump head drive 10, is turned The central point of moving part 104 and the central point of opening 10111 are on same line.Pump head drive 10 further includes hand cranking handle 105, hand Driving end 1052 of the crank hand 105 with end 1051 is connected and with the connection of end 1051 is connect, the connection of hand cranking handle 105 End 1051 connects rotating member 104, and driving end 1052 is located at the outside of drive shell 101, the center point of rotating member 104 In on the central axis of connection end 1051.
When 11 hand-rail type pump head drive 10 to be set to of pump head, pump head adapter 12 is first set to pump head drive 10 Drive shell 101 mounting portion 1011 in, the connection shaft 1212 of the first connector 121 of pump head adapter 12 passes through opening 10111, and connect with rotating member 104.Then pump head 11 is set in pump head adapter 12.The group of blood pump 1 is just completed above Dress, user only will drive connection end 1051 to rotate by driving end 1052, and connection end 1051 drives 104 turns of rotating member Dynamic, rotating member 104 drives the first connector 121 rotation of pump head adapter 12, and the first connector 121 of rotation drives pump head 11 Impeller 112 rotate.Step-up gear (planetary gear knot can also be arranged by wherein connecting between end 1051 and rotating member 104 Structure), to increase the velocity of rotation of rotating member 104, the velocity of rotation of the first connector 121 driven by rotating member 104 is allowed to increase To the speed for meeting the rotation of pump head 11.
The inside of above-mentioned mounting portion 1011 is equipped with locating convex block 10112, and locating convex block 10112 is for pressing on pump head adaptation On second connector 122 of device 12, with restrictive pump head adapter 12 in mounting portion 1011, avoid pump head adapter 12 in use When be detached from mounting portion 1011.The quantity of locating convex block 10112 be it is multiple, at least one of multiple locating convex blocks 10112 be fix In on mounting portion 1011, remaining locating convex block 10112 can be separately positioned with mounting portion 1011, with mounting portion 1011 it is separately positioned in Locating convex block 10112 can be installed on the pre-determined bit that mounting portion 1011 is installed on again later on mounting portion 1011 to pump head adapter 12 It sets.It can be with the structure phase of the locating part in first embodiment with the separately positioned structure in locating convex block 10112 of mounting portion 1011 Same or other structures, only will make pump head adapter 12 not depart from mounting portion 1011.
Because the rotation direction of the pump head 11 of each specification may be forward or reverse, so user must be according to use In 11 specifications control rotating member 104 of pump head rotation direction.In the drive shell 101 of the pump housing driver 10 of the present embodiment also Equipped with the steering limiting structure 106 that control rotating member 104 turns to, the side that limiting structure 106 is located at rotating member 104 is turned to, with Limitation rotating member 104 is rotated along one direction.It is the second recognition component that this, which turns to limiting structure 106, and corresponding pump head is adapted to The positioning convex portion 1223 of device 12, positioning convex portion 1223 are the first recognition component positioned at 122 bottom of the second connector.First identification The contact relation of element and the second recognition component and the company for changing the rotating member 104 in the second recognition component and pump head drive 10 Relationship is connect, pump head drive 10 drives the actuation of pump head 11 according to the connection relationship of second recognition component and rotating member 104.
Turning to limiting structure 106 has first to turn to limited part 1061 and the second steering limited part 1062, according to pump head 11 Specification selection first steering limited part 1061 or second steering limited part 1062 connect with rotating member 104.The present embodiment turns To limiting structure 106 limiting structure can be turned to automatically according to the rotation direction of 11 specifications control rotating member 104 of pump head, following the description How 106 identify the specification of pump head 11.
The inner edge of the mounting portion 1011 of drive shell 101 also has stepped part 10113 in this present embodiment, passes through stepped part Space in mounting portion 1011 is divided into first receiving space 10115 and the second accommodation space 10116 by 10113, and second accommodates sky Between 10116 tops for being located at first receiving space 10115, first receiving space 10115 is connected with the second accommodation space 10116 It is logical.When pump head adapter 12 is installed on mounting portion 1011, the second connector 122 of pump head adapter 12 is located at second and accommodates sky Between in 10116, bottom surface is connected in junctor portion 10113, (the first identification of positioning convex portion 1223 of 122 bottom of the second connector Element) first receiving space 10115 can be entered.
Turning to limiting structure 106 further includes interlocking lever 1063, and the concatenation of interlocking lever 1,063 first turns to limited part 1061 and the Two turn to limited part 1062, and the central point that the first steering limited part 1061 and second turn to limited part 1062 is located at interlocking lever 1063 Central axis on.Interlocking lever 1063 can drive the first steering limited part 1061 and second to turn to limited part 1062 in drive shell It is moved in 101 along the direction for the central axis for being parallel to rotating member 104.One end of interlocking lever 1063 is from the bottom of mounting portion 1011 Portion's protrusion, and be located in first receiving space 10115.The height that interlocking lever 1063 is protruded from the bottom of mounting portion 1011 is less than The Sidewall Height of one accommodation space 10115.The initial position for turning to limiting structure 106 is one end of interlocking lever 1063 from mounting portion 1011 bottom protrusion, the first steering limited part 1061 are connect with rotating member 104, and first, which turns to limited part 1061, limits rotating member 104 rotate along first direction (clockwise).
If the rotation direction of pump head 11 is when rotating along a first direction, it is necessary to maintain to turn to the initial of limiting structure 106 Position also illustrates that the positioning convex portion 1223 in first receiving space 10115 cannot be pushed positioned at first receiving space 10115 Interior interlocking lever 1063, in other words, the height that positioning convex portion 1223 is parallel to the central axis of stopper protrusion are less than or equal to the The difference for the height that the Sidewall Height and interlocking lever 1063 of one accommodation space 10115 are protruded from the bottom of mounting portion 1011.If pump First 11 rotation direction is when rotating along second direction (counter clockwise direction), it is necessary to interlocking lever 1063 be allowed to drive second to turn to limit Direction of the product 1062 far from mounting portion 1011 is mobile, connect the second steering limited part 1062 with rotating member 104, and second turns to Limited part 1062 limits rotating member 104 and is rotated in a second direction,.In order to enable interlocking lever 1063 to drive the second steering limited part 1062 directions far from mounting portion 1011 are mobile, are pushed and connected by the positioning convex portion 1223 being located in first receiving space 10115 One end of lever 1063 accommodates so the height that positioning convex portion 1223 is parallel to the central axis of positioning convex portion 1223 is greater than first The difference for the height that the Sidewall Height in space 10115 and interlocking lever 1063 are protruded from the bottom of mounting portion 1011, even equal to the The Sidewall Height of one accommodation space 10115.It to sum up states, pump head drive 10 is according to steering limiting structure 106 and rotating member 104 Connection relationship drives the rotation direction of impeller 112, and the connection relationship for turning to limiting structure 106 and rotating member 104 is to pass through positioning Protrusion 1223 changes with 106 contact relation of limiting structure is turned to.
Limiting structure 106 is turned to automatically according to pump head it can be seen from the above, realizing by the height design of positioning convex portion 1223 In other words the rotation direction of 11 specification limitation rotating member 104 is converted by the positioning convex portion 1223 of the second connector 122 Turn to the rotation direction that limiting structure 106 limits rotating member 104.The rotating member 104 of the present embodiment is gear, and first turns to limitation Part 1061 and the second steering limited part 1062 are respectively unilateral bearing, pass through first and turn to limited part 1061 or the second steering limitation Part 1062 engages connection with rotating member 104, and the first steering limited part 1061 or second is made to turn to the limitation rotating member of limited part 1062 104 rotate along one direction.Rotating member 104, first, which turns to limited part 1061 and the second steering limited part 1062, to be other knots Structure, such as: ratchet and pawl will only reach above-mentioned effect.
The interlocking lever 1063 of the present embodiment is additionally provided with elastic component 1064 far from one end of mounting portion 1011, and elastic component 1064 is remote One end from interlocking lever 1063 is fixed in drive shell 1011, when the located protrusion 1223 of interlocking lever 1063 is toward drive shell When being pushed in 101,1063 compression elastic piece 1064 of interlocking lever.After protrusion 1223 to be positioned is detached from first receiving space 10115, bullet Property the elastic force that is generated by compression of part 1064 drive interlocking lever 1063 mobile toward mounting portion 1011, make to turn to limiting structure 106 extensive Its multiple initial position, has the function that automatically reset.
The present invention also provides a kind of cardiopulmonary bypass system, cardiopulmonary bypass system includes the blood pump using above-described embodiment.
In conclusion it is according to pump head that the present invention, which provides a kind of blood pump and cardiopulmonary bypass system, the structure of pump head adapter, Specification depending on, that is, the pump head of each specification has corresponding pump head adapter.Blood pump of the invention is adapted in pump head Device is equipped with the first recognition component, in the second recognition component is arranged in pump head drive, passes through the second recognition component identification first The problem of recognition component drives pump head actuation, so energy medical assistance personnel operation to control pump head drive, reduces maloperation.
It should be noted that, in this document, term " including ", " including " or its any other variant are intended to non-row His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic Element.In the absence of more restrictions, the element limited by sentence " including one ... ", it is not excluded that including There is also other identical elements in the process, method of the element, article or device.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much Form belongs within protection of the invention.

Claims (15)

1. a kind of blood pump, which is characterized in that including pump head drive, pump head and pump head adapter, the pump head adapter connection The pump head drive and the pump head, the pump head adapter have the first recognition component, what the pump head drive had Second recognition component, second recognition component identifies first recognition component, and generates recognition result, the pump head drive Device controls the actuation of the pump head according to the recognition result.
2. blood pump as described in claim 1, which is characterized in that second recognition component reads first recognition component, Second recognition component generates identification signal, and the pump head drive controls the work of the pump head according to the identification signal It is dynamic.
3. blood pump as claimed in claim 2, which is characterized in that further include controller, the controller is electrically connected the pump The motor of head driver and second recognition component, the controller receives the identification signal, and is believed according to the identification The actuation of number control motor, to control the actuation of the pump head.
4. blood pump as claimed in claim 2, which is characterized in that first recognition component is electronic tag, and described second knows Other element is e-tag reader.
5. blood pump as described in claim 1, which is characterized in that first recognition component connects with second recognition component Touching relationship and the connection relationship for changing the rotating member in second recognition component and the pump head drive, the pump head drive Device drives the actuation of the pump head according to the connection relationship of second recognition component and the rotating member.
6. blood pump as claimed in claim 5, which is characterized in that the pump head adapter includes the first connector and the second connection Part, first connector are arranged in second connector, and first connector is connect with the pump head drive, institute It states the second connector to connect with the pump head, the pump head drive drives first connector relative to second connection Part rotation, first connector drive the pump head actuation, and first recognition component is set to second connector Bottom, the pump head drive include drive shell, and the drive shell has mounting portion, and the rotating member is set to the drive In dynamic shell, the rotating member is corresponding with the mounting portion, and second recognition component is set in the drive shell, and with The rotating member connection, and protruded from the bottom of the mounting portion, second recognition component and first recognition component pair It answers.
7. blood pump as claimed in claim 6, which is characterized in that the mounting portion has first receiving space and is located at described the Second accommodation space of the top of one accommodation space, second connector are located in second accommodation space, and described first Recognition component is located in the first receiving space, one end position that second recognition component is protruded from the bottom of the mounting portion In in the first receiving space.
8. blood pump as claimed in claim 7, which is characterized in that the height of first recognition component is less than or equal to described first The difference for the height that the Sidewall Height of accommodation space and second recognition component are protruded from the bottom of the mounting portion, described the One recognition component is not contacted with second recognition component, and second recognition component limits the rotating member and turns along first direction It is dynamic.
9. blood pump as claimed in claim 7, which is characterized in that the height of first recognition component is greater than described first and accommodates The difference for the height that the Sidewall Height in space and second recognition component are protruded from the bottom of the mounting portion, described first knows Other element is contacted with second recognition component, and second recognition component limits the rotating member and is rotated in a second direction,.
10. blood pump as claimed in claim 6, which is characterized in that second recognition component includes interlocking lever, the first steering limit Product and second turns to limited part, and the interlocking lever concatenation described first turns to limited part and described second and turns to limited part, One end is located in the first receiving space, and corresponding first recognition component, according to first recognition component with it is described Rotating member described in the connection relationship of interlocking lever is connect with the first steering limited part or the second steering limited part, and described the One steering limited part is rotated in a first direction to limit the rotating member, and the second steering limited part is to limit described turn Moving part is rotated in a second direction, and the first direction is opposite with the second direction.
11. blood pump as claimed in claim 10, which is characterized in that the interlocking lever is equipped with bullet far from one end of the mounting portion Property part, the elastic component are fixed on the bottom of the drive shell far from one end of the interlocking lever.
12. the blood pump as described in right wants 6, which is characterized in that the pump head drive further includes hand cranking handle, the hand crank One end of hand connects the rotating member, and the hand cranking handle is located at the outer of the drive shell far from one end of the rotating member Portion.
13. blood pump as described in claim 1, which is characterized in that the pump head includes shell and to be set to the shell intracorporal Impeller, the impeller have driving portion, and the pump head is set in second connector, and the driving portion and described first connects It is non-contact connection or contact connectio between fitting.
14. blood pump as claimed in claim 13, which is characterized in that described non-contact to be connected as magnetic coupling or electromagnetic coupling.
15. a kind of cardiopulmonary bypass system, which is characterized in that use the blood pump as described in any one of claim 1-14.
CN201910170803.4A 2019-03-07 2019-03-07 Blood pump and cardiopulmonary bypass system Active CN109847128B (en)

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