CN109847129A - A kind of blood pump and cardiopulmonary bypass system - Google Patents
A kind of blood pump and cardiopulmonary bypass system Download PDFInfo
- Publication number
- CN109847129A CN109847129A CN201910170884.8A CN201910170884A CN109847129A CN 109847129 A CN109847129 A CN 109847129A CN 201910170884 A CN201910170884 A CN 201910170884A CN 109847129 A CN109847129 A CN 109847129A
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- Prior art keywords
- pump head
- connector
- pump
- blood pump
- blood
- 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
Links
- 239000008280 blood Substances 0.000 title claims abstract description 87
- 210000004369 blood Anatomy 0.000 title claims abstract description 87
- 230000002612 cardiopulmonary effect Effects 0.000 title claims abstract description 16
- 230000004308 accommodation Effects 0.000 claims description 19
- 239000000126 substance Substances 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 11
- 238000002618 extracorporeal membrane oxygenation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000012528 membrane Substances 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000009565 veno-venous ECMO Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/20—Type thereof
- A61M60/205—Non-positive displacement blood pumps
- A61M60/216—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller
- A61M60/226—Non-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
- A61M60/232—Centrifugal pumps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/104—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body
- A61M60/109—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body incorporated within extracorporeal blood circuits or systems
- A61M60/113—Extracorporeal 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/40—Details relating to driving
- A61M60/403—Details relating to driving for non-positive displacement blood pumps
- A61M60/422—Details 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
Landscapes
- 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 pump head drive, pump head and pump head adapter, the pump head adapter includes the first connector and the second connector, first connector is arranged in second connector, first connector is connect with the pump head drive, second connector is connect with the pump head, which drives first connector to rotate relative to second connector, which drives the pump head actuation.The cardiopulmonary bypass system uses blood pump of the invention.Pump head adapter is only needed replacing when the pump head of blood pump replacement different size of the invention, pump head drive uses same specification, the problem of so reducing the management complexity of blood pump, reduce maloperation.
Description
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.When the pump head of blood pump will be changed to another pump head, the pump head drive of blood pump will also be replaced therewith, cause
Use upper inconvenience.It when increasing with the specification for writing pump head, that is, will form the blood pump of plurality of specifications, be easy to improve the management of blood pump
Complexity, the specification that healthcare givers needs that longer time is spent to be familiar with a variety of blood pumps, is easy to happen maloperation in use process
The problem of.
Summary of the invention
The embodiment of the present invention provides a kind of blood pump and cardiopulmonary bypass system, a variety of with the specification for solving blood pump, replaces pump head
Shi Bixu is replaced together with pump head drive, and same pump head drive can not be suitable for the pump head of different size, causes to make
With inconvenient problem.
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 includes the first connector and the second connector, which is arranged in second connector, first connector with
Pump head drive connection, which connect with the pump head, the pump head drive drive first connector relative to
Second connector rotation, first connector drive the pump head actuation.
Second aspect provides a kind of cardiopulmonary bypass system, uses blood pump described in first aspect.
In embodiments of the present invention, blood pump of the invention be using pump head adapter provided by the present invention connection pump head with
Pump head drive solves the problems, such as that the pump head for replacing different size in the past needs replacing corresponding pump head drive, of the invention
Blood pump only needs replacing pump head adapter when replacing the pump head of different size, and pump head drive uses same specification, so
The problem of reducing the management complexity of blood pump, reducing 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；
Fig. 6 is the cross-sectional view of the blood pump of fourth 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.
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 driving turntable 1211 and connection shaft 1212, and connection shaft 1212 is 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,
The bottom surface of the shell 111 of pump head 11 is connected on the surface around the accommodation groove 1221 of the second connector 122, the drive of impeller 112
Dynamic 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 connection
Part 122 makes to can be carried out noncontact driving between driving portion 1121 and the turntable 1211 of the first connector 121 to support pump head 11
The driving portion 1121 of pump head 11 is located in locating slot 1214.The polarity of the magnetic substance 1210 of above-mentioned driving turntable 1211, quantity and
It is the above-mentioned driving turntable 1211 depending on the polarity for the magnetic substance being embedded in driving portion 1121, position and quantity that position, which is arranged,
The setting of magnetic substance 1210 be 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 detached from the 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.
The blood pump 1 of the present embodiment further includes controller 13, and controller 13 and the motor 102 of pump head drive 10 electrically connect
It connects, controller 13 is according to the rotation direction and velocity of rotation of the specifications control motor 102 of pump head 11.Setting may be selected in controller 13
, can also be separately positioned with pump head drive 10 in the drive shell 101 of pump head drive 10, and pass through wired or wireless side
Formula transmits signal to motor 102.
Referring to Fig. 4, it is the cross-sectional view of the blood pump of second embodiment of the invention；As shown, the blood pump 1 of the present embodiment
It is with the blood pump difference of above-described embodiment, the actuation of the pump head drive of above-described embodiment is to use to be driven by electricity, this implementation
The actuation of the pump head drive 10 of example is using driven by shaking, and the pump head 11 of such the present embodiment can pass through hand under power failure
Shake the driving of formula pump head drive 10.The mounting portion 1011 of the drive shell 101 of the pump head drive 10 of the present embodiment is groove, peace
The bottom in dress portion 1011 has opening 10111.Rotating member 104, rotating member are installed in the drive shell 101 of pump head drive 10
104 central point and the central point of opening 10111 are on same line.Pump head drive 10 further includes hand cranking handle 105, hand crank
Driving end 1052 of the hand 105 with end 1051 is connected and with the connection of end 1051 is connect, the connection end of hand cranking handle 105
1051 connection rotating members 104, driving end 1052 are located at the outside of drive shell 101, and the central point of rotating member 104, which is located at, to be connected
On the central axis for connecing 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.
Please referring to Fig. 5 and Fig. 6, it is the cross-sectional view of the blood pump of third embodiment of the invention and fourth embodiment；As schemed
Show, the blood pump 1 of 3rd embodiment and fourth embodiment is with the blood pump difference of above-described embodiment, because of the pump head of each specification
11 rotation direction may be forward or reverse, so user must be according to the 11 specifications control rotating member of pump head in use
104 rotation direction.The steering limiting structure that control rotating member 104 turns to is additionally provided in the pump housing driver 10 of the present embodiment
106, the side that limiting structure 106 is located at rotating member 104 is turned to, is rotated with limiting rotating member 104 along one direction.Turn to limitation
Structure 106 has first to turn to limited part 1061 and the second steering limited part 1062, selects first turn according to the specification of pump head 11
It is connect to limited part 1061 or the second steering limited part 1062 with rotating member 104.The steering limiting structure 106 of the present embodiment can be certainly
The dynamic rotation direction according to 11 specifications control rotating member 104 of pump head, following the description turn to how limiting structure 106 identifies pump head 11
Specification.
In this present embodiment, the inner edge of the mounting portion 1011 of drive shell 101 also has stepped part 10113, passes through ladder
Space in mounting portion 1011 is divided into first receiving space 10115 and the second accommodation space 10116 by portion 10113, and second accommodates
Space 10116 is located at the top of first receiving space 10115, and 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, and the positioning convex portion 1223 of 122 bottom of the second connector can enter first
Accommodation space 10115.
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.
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 uses the blood pump of 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 using the present invention
Provided pump head adapter connection pump head and pump head drive, the pump head for solving previous replacement different size need replacing correspondence
Pump head drive the problem of, when pump head of blood pump replacement different size of the invention, only needs replacing pump head adapter, pump head
Driver uses same specification.The present invention provides hand-rail type pump head drive, makes blood pump of the invention under off-position
Still it can be used.
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 (22)
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 includes
First connector and the second connector, first connector are arranged in second connector, first connector with
The pump head drive connection, second connector are connect with the pump head, and the pump head drive drives described first to connect
Fitting is rotated relative to second connector, and first connector drives the pump head actuation.
2. blood pump as described in claim 1, which is characterized in that the pump head includes shell and is set to the intracorporal leaf of the shell
Wheel, the impeller have driving portion, and the pump head is set in second connector, and the driving portion is connect with described first
It is non-contact connection or contact connectio between part.
3. blood pump as claimed in claim 2, which is characterized in that first connector includes driving turntable and is set to described
The connection shaft on the surface of turntable is driven, the central point of the driving turntable is located on the central axis of the connection shaft,
The connection shaft is connect with the pump head drive, be between the driving turntable and the driving portion it is non-contact connection or connect
Touching connection.
4. blood pump as claimed in claim 3, which is characterized in that second connector has accommodation groove, the accommodation groove
Bottom has perforation, and the connection shaft passes through the perforation, and the driving turntable is located in the accommodation groove, and the pump head is set
It is placed on second connector.
5. blood pump as claimed in claim 4, which is characterized in that second connector also has stopper protrusion, the limit
Protrusion is located on the surface around the accommodation groove, and the shell of the pump head is located in the stopper protrusion.
6. blood pump as claimed in claim 5, which is characterized in that the stopper protrusion has notch, the shell of the pump head
Body has blood efferent duct, and the blood efferent duct is pierced by from the notch.
7. blood pump as claimed in claim 5, which is characterized in that the stopper protrusion is additionally provided with locating part, the locating part
One end presses on the shell of the pump housing.
8. blood pump as claimed in claim 7, which is characterized in that the outer peripheral edge of the shell, which is additionally provided with, abuts protrusion, the limit
One end of position part presses on the abutting protrusion.
9. blood pump as claimed in claim 4, which is characterized in that be non-contact company between the driving turntable and the driving portion
It connects, the bottom surface of the shell of the pump head is connected on the surface that second connector is located at around the accommodation groove.
10. blood pump as claimed in claim 9, which is characterized in that described non-contact to be connected as magnetic coupling or electromagnetic coupling.
11. blood pump as claimed in claim 9, which is characterized in that the driving portion has magnetic substance, and the driving turntable is equipped with
Magnetic substance corresponding with the magnetic substance of the driving portion, the magnetic substance of the driving turntable and the institute of the driving portion
It states magnetic substance and generates magnetic coupling.
12. blood pump as claimed in claim 11, which is characterized in that the driving turntable has locating slot, the driving part
In in the locating slot.
13. blood pump as claimed in claim 3, which is characterized in that the pump head drive is to be driven by electricity or driven by shaking.
14. blood pump as claimed in claim 13, which is characterized in that the pump head drive is to be driven by electricity, and including motor,
The mandrel of the motor and the connection shaft connect, the central axis position of the central axis of the mandrel and the connection shaft
In on same line.
15. blood pump as claimed in claim 14, which is characterized in that the mandrel and the connection shaft are connected by jointing
It connects.
16. blood pump as claimed in claim 14, which is characterized in that the pump head drive further includes drive shell, the drive
Dynamic shell accommodates the motor, and the drive shell has a mounting portion, and the mandrel of the motor is towards the mounting portion, institute
It states the second connector to be set on the mounting portion, the connection shaft passes through the mounting portion and connect with the mandrel.
17. blood pump as claimed in claim 16, which is characterized in that the bottom of second connector has positioning convex portion, institute
Perforation is stated through the positioning convex portion, the positioning convex portion is set in the mounting portion.
18. blood pump as claimed in claim 13, which is characterized in that the pump head drive is driven by shaking, and the pump head drives
Dynamic device includes rotating member and hand cranking handle, and the hand cranking handle is connect with the rotating member, the connection shaft and the rotation
Part connection.
19. blood pump as claimed in claim 18, which is characterized in that the pump head drive further includes drive shell, the drive
Dynamic shell accommodates the rotating member, and one end of the hand cranking handle is located at the outside of the drive shell, the drive shell tool
Have mounting portion, the mounting portion is corresponding with the rotating member, the connection shaft pass through the mounting portion and with the rotating member
Connection.
20. blood pump as claimed in claim 19, which is characterized in that second connector is set in the mounting portion.
21. blood pump as claimed in claim 19, which is characterized in that the mounting portion has locating convex block, the locating convex block
It presses on second connector.
22. a kind of cardiopulmonary bypass system, which is characterized in that use the blood pump as described in any one of claim 1-21.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910170884.8A CN109847129B (en) | 2019-03-07 | 2019-03-07 | Blood pump and cardiopulmonary bypass system |
| PCT/CN2019/078097 WO2020177148A1 (en) | 2019-03-07 | 2019-03-14 | Blood pump, and cardiopulmonary bypass system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910170884.8A CN109847129B (en) | 2019-03-07 | 2019-03-07 | Blood pump and cardiopulmonary bypass system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109847129A true CN109847129A (en) | 2019-06-07 |
| CN109847129B CN109847129B (en) | 2024-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910170884.8A Active CN109847129B (en) | 2019-03-07 | 2019-03-07 | Blood pump and cardiopulmonary bypass system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109847129B (en) |
| WO (1) | WO2020177148A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115487416B (en) * | 2022-11-17 | 2023-03-07 | 深圳汉诺医疗科技有限公司 | Blood pump head fixed knot constructs |
| CN115531649B (en) * | 2022-12-01 | 2023-03-07 | 深圳汉诺医疗科技有限公司 | External membrane lung oxygenation pump head fixing device |
| CN116036464B (en) * | 2022-12-28 | 2023-12-01 | 心擎医疗（苏州）股份有限公司 | Magnetic suspension blood pump with pump head quick disassembly structure |
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| CN206694230U (en) * | 2017-04-19 | 2017-12-01 | 重庆杰恒蠕动泵有限公司 | A kind of self-locking fast-assembling peristaltic pump |
| CN109847128A (en) * | 2019-03-07 | 2019-06-07 | 江苏赛腾医疗科技有限公司 | A kind of blood pump and cardiopulmonary bypass system |
| CN210355495U (en) * | 2019-03-07 | 2020-04-21 | 江苏赛腾医疗科技有限公司 | Blood pump and cardiopulmonary bypass system |
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| US6036452A (en) * | 1998-05-07 | 2000-03-14 | Huang; Tsung-Jen | Device for coupling a short-axle type motor with a pump |
| CN205225635U (en) * | 2015-12-10 | 2016-05-11 | 威海威高血液净化制品有限公司 | Adapting unit of motor and peristaltic pump |
| CN206129572U (en) * | 2016-08-31 | 2017-04-26 | 赛若麦得（上海）生物技术有限公司 | Multi -functional peristaltic pump mechanical structure |
| CN207131595U (en) * | 2017-08-24 | 2018-03-23 | 清华大学 | Blood pump and pumping system |
| CN208153307U (en) * | 2018-04-08 | 2018-11-27 | 珠海市美瑞华医用科技有限公司 | A kind of Medical collapsible formula roller bearing peristaltic pump |
| CN108815601B (en) * | 2018-10-15 | 2019-01-29 | 上海微创医疗器械（集团）有限公司 | Magnetic coupling centrifugal blood pump and blood pump pedestal |
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2019
- 2019-03-07 CN CN201910170884.8A patent/CN109847129B/en active Active
- 2019-03-14 WO PCT/CN2019/078097 patent/WO2020177148A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206694230U (en) * | 2017-04-19 | 2017-12-01 | 重庆杰恒蠕动泵有限公司 | A kind of self-locking fast-assembling peristaltic pump |
| CN109847128A (en) * | 2019-03-07 | 2019-06-07 | 江苏赛腾医疗科技有限公司 | A kind of blood pump and cardiopulmonary bypass system |
| CN210355495U (en) * | 2019-03-07 | 2020-04-21 | 江苏赛腾医疗科技有限公司 | Blood pump and cardiopulmonary bypass system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109847129B (en) | 2024-08-16 |
| WO2020177148A1 (en) | 2020-09-10 |
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