CN209221132U - It is a kind of using etc. journal axles and bearing arrangement axial flow blood pump - Google Patents
It is a kind of using etc. journal axles and bearing arrangement axial flow blood pump Download PDFInfo
- Publication number
- CN209221132U CN209221132U CN201821416896.1U CN201821416896U CN209221132U CN 209221132 U CN209221132 U CN 209221132U CN 201821416896 U CN201821416896 U CN 201821416896U CN 209221132 U CN209221132 U CN 209221132U
- Authority
- CN
- China
- Prior art keywords
- rotor
- mounting portion
- diameter
- tail
- auxiliary section
- 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.)
- Active
Links
Abstract
It is a kind of using etc. journal axles and bearing arrangement axial flow blood pump, an including casing is equipped with leading, rotor in casing and tail led；Leading one end towards rotor is equipped with fore bearing, and rotor is equipped with front axle towards leading one end；Rotor is equipped with rear bearing towards one end that tail is led, and tail leads towards one end of rotor and is equipped with rear axle；Front axle and rear axle are in umbrella, have mounting portion and auxiliary section；Mounting portion is rod-shaped, diameter of the auxiliary section diameter greater than mounting portion, first mating surface of the end with evagination；Fore bearing and rear axle loading end are T-shaped, have mounting portion and auxiliary section；Mounting portion is rod-shaped, diameter of the secure fit portion diameter greater than mounting portion, mating surface of the end with indent；Rotor be in shuttle shape, periphery set there are two protrusion rotor blade；Rotor front end hub diameter is identical as front axle auxiliary section diameter diameter；Rotor rear end hub diameter is identical as rear axle auxiliary section diameter；Tail leads the cantilever primary blades that periphery is equipped with several protrusions, is equipped with splitterr vanes between adjacent cantilever primary blades.
Description
Technical field
The utility model belongs to the field of medical instrument technology, it is especially a kind of using etc. the axis of journal axles and bearing arrangement bleed
Pump.
Background technique
Currently, installation artificial heart blood pump is to extend serious heart failure patient vitals due to the shortage of heart transplant donors
Effective ways.Wherein rotary blood pump application at most, is divided into axial flow blood pump and two kinds of centrifugal blood pump.Axial flow blood pump is using most
Blood pump, mostly use the structure of mechanical axis and bearing, the axial flow blood pump pump housing mainly include leading blade, rotor blade, after lead
Blade, casing.But be respectively present and turned between rotor blade and leading blade, rear guide vane piece, quiet interface, axis and bearing it
Between there is also the faces of being engaged, be all one of the position for having thrombosis problem most serious in shaft type axial flow blood pump runner, formed
Thrombus once fall off will occluding vascular cause apoplexy or embolism.The pump thrombosis risk reduced in blood pump runner is axis stream
Blood pump structure design and improved important goal.
Utility model content
The purpose of the utility model is to provide the axial flow blood pumps of the journal axles and bearing arrangement such as a kind of use, can be effectively improved
Turn, flow field around quiet interface and bearing, reduces the pump thrombosis risk of axial flow blood pump.
To achieve the above object, the utility model takes following technical scheme:
It is a kind of using etc. journal axles and bearing arrangement axial flow blood pump, including a cylindric casing, in the casing successively
It is led equipped with leading, rotor and tail；
It is arranged with silicon steel sheet outside the casing, which is arranged with coil, which is externally provided with coil housing, outside the coil
It covers end and is equipped with upper shield, internal coil is sealed；
The leading and tail, which is led, to be both secured in the casing, which is equipped with fore bearing, the rotor
One end leading towards this is equipped with front axle；The rotor is equipped with rear bearing towards one end that the tail is led, which leads towards the rotor
One end is equipped with rear axle；The front axle is in umbrella, has the first mounting portion and the first auxiliary section；First mounting portion is rod-shaped, fixation
In in the axis hole of the rotor front end；The first auxiliary section diameter is greater than the diameter of first mounting portion, and end has the of evagination
One mating surface；The front axle loading end is T-shaped, has the second mounting portion and the second auxiliary section；Second mounting portion is rod-shaped, fixation
In in the leading axis hole；The second auxiliary section diameter is greater than the diameter of second mounting portion, and end has the second of indent to match
Conjunction face；First mating surface is connect with the second mating surface corresponding matching；The rear axle is in umbrella, has third mounting portion and third
Auxiliary section；The third mounting portion be it is rod-shaped, be fixed in the axis hole that the tail is led；The third auxiliary section diameter is installed greater than the third
The diameter in portion, end have the third mating surface of evagination；The rear axle loading end is T-shaped, has the 4th mounting portion and the 4th cooperation
Portion；4th mounting portion be it is rod-shaped, be fixed in the axis hole of the rotor rear end；4th auxiliary section diameter is greater than the 4th installation
The diameter in portion, end have the 4th mating surface of indent；The third mating surface is connect with the 4th mating surface corresponding matching；
The rotor be in shuttle shape, periphery set there are two protrusion rotor blade；The rotor front end hub diameter first is matched with this
Conjunction portion diameter, the second auxiliary section diameter are all the same；The rotor rear end hub diameter and the third auxiliary section diameter, the 4th auxiliary section
Diameter is all the same；
The tail leads the cantilever primary blades that periphery is equipped with several protrusions, and the end of each cantilever primary blades extends to outside the rotor
Week；Splitterr vanes are equipped between adjacent cantilever primary blades, each splitterr vanes bending direction is corresponding with each cantilever primary blades.
Further, Blind locating holes are equipped with inside second mating surface.
Further, the Blind locating holes are concave spherical surface.
Further, the fore bearing and rear bearing are ceramic material, and the front axle and rear axle are jewel axis.
Further, the rotor is hollow, and inside is equipped with magnet steel.
Further, the rotor blade is led to the tail from close described leading one end and is prolonged around the rotor helical-screw
Stretch, from this it is leading lead viewing to the tail, the hand of spiral of the rotor blade is clockwise.
Further, the cantilever primary blades are led outer end from the tail and are extended to the rotor around the tail driving screw, from this
Tail is oriented to the leading viewing, and the hand of spiral of the cantilever primary blades is counterclockwise.
Further, each splitterr vanes end, which is led with the tail towards one end of the rotor, flushes.
Further, the cantilever primary blades and the quantity of splitterr vanes are two panels, symmetrical at equal intervals.
The beneficial effects of the utility model are: the axial flow blood pump of the journal axles and bearing arrangement such as the utility model use, axis
It is fully mated with bearing contact surfaces, so that axis stability of rotation eliminates along with axis and the isometrical design feature of bearing and turns, is quiet
The flow dead zone of interface can effectively reduce thrombosis risk in pump.
Detailed description of the invention
Fig. 1 is the overall structure cross-sectional view of the axial flow blood pump of the journal axles such as the utility model use and bearing arrangement.
Fig. 2 is the schematic diagram of internal structure of the axial flow blood pump of the journal axles such as the utility model use and bearing arrangement.
Fig. 3 is the front axle of the axial flow blood pump of the journal axles such as the utility model use and bearing arrangement and the fit structure of fore bearing
Schematic diagram.
Fig. 4 is the rear axle of the axial flow blood pump of the journal axles such as the utility model use and bearing arrangement and the fit structure of rear bearing
Schematic diagram.
Fig. 5 is the structural schematic diagram of the rotor of the axial flow blood pump of the journal axles such as the utility model use and bearing arrangement.
Specific embodiment
The utility model is described in detail below by way of specific embodiment, however not to limit the utility model
Practical range.
As Figure 1-Figure 5, the utility model provide it is a kind of using etc. journal axles and bearing arrangement axial flow blood pump, including one
The casing 1 of a cylindrical shape is successively arranged leading 2, rotor 3 in the casing 1 and tail leads 4.
It is arranged with silicon steel sheet 11 outside the casing 1, which is arranged with coil 12, which is externally provided with coil housing
13, which is equipped with upper shield 14, and internal coil 12 is sealed.
This leading 2 and tail lead 4 and be both secured in the casing 1, this leading 2 towards one end of the rotor 3 be equipped with fore bearing 5,
The rotor 3 is equipped with front axle 6 towards leading 2 one end.The rotor 3 is equipped with rear bearing 7 towards one end that the tail leads 4, which leads 4
Rear axle 8 is equipped with towards one end of the rotor 3.The fore bearing 5 and rear bearing 7 are ceramic material, and the front axle 6 and rear axle 8 are
Jewel axis.
As shown in figure 3, the front axle 6 is in umbrella, there is the first mounting portion 61 and the first auxiliary section 62.First mounting portion 61
Be it is rod-shaped, be fixed in the axis hole of 3 front end of rotor.First auxiliary section, 62 diameter is greater than the diameter of first mounting portion 61,
End has the first mating surface 621 of evagination.5 section of fore bearing is T-shaped, has the second mounting portion 51 and the second auxiliary section
52.Second mounting portion 51 be it is rod-shaped, be fixed in leading 2 axis hole.Second auxiliary section, 52 diameter is greater than second peace
The diameter in dress portion 51, end have the second mating surface 521 of indent.First mating surface 621 is corresponding with second mating surface 521
It is cooperatively connected.As shown in figure 4, the rear axle 8 is in umbrella, there is third mounting portion 81 and third auxiliary section 82.The third mounting portion
81 is rod-shaped, are fixed on the tail and lead in 4 axis hole.82 diameter of third auxiliary section is greater than the diameter of the third mounting portion 81, end
Hold the third mating surface 821 with evagination.7 section of rear bearing is T-shaped, has the 4th mounting portion 71 and the 4th auxiliary section 72.
4th mounting portion 71 be it is rod-shaped, be fixed in the axis hole of 3 rear end of rotor.4th auxiliary section, 72 diameter is greater than the 4th peace
The diameter in dress portion 71, end have the 4th mating surface 721 of indent.The third mating surface 821 is corresponding with the 4th mating surface 721
It is cooperatively connected.Preferably, second mating surface 521, Blind locating holes 522,722, the positioning blind are equipped with inside the 4th mating surface 721
Hole is concave spherical surface.The radius of concave-convex spherical surface between first mating surface 621 and the second mating surface 521 of the utility model it is consistent and
Less than hemisphere face, the radius of the concave-convex spherical surface between the third mating surface 821 and the 4th mating surface 721 of the utility model it is consistent and
Less than hemisphere face.Thus by the face of being engaged of axis and bearing become turn, quiet interface, can be effectively improved turn, quiet interface
And around bearing flow field with reduce pump thrombosis risk.
As shown in figure 5, the rotor 3 be in shuttle shape, periphery set there are two protrusion rotor blade 31.The rotor 3 is hollow, internal
Equipped with magnet steel 32.The 3 front end hub diameter of rotor and 62 diameter of the first auxiliary section, 52 diameter of the second auxiliary section are all the same, should
3 rear end hub diameter of rotor and 82 diameter of third auxiliary section, 72 diameter of the 4th auxiliary section are all the same.The rotor blade 31 is from leaning on
Nearly leading 2 one end is led 4 to the tail and is extended spirally around the rotor 3, leading 2 leads 4 viewings to the tail from this, the rotor blade 31
The hand of spiral be clockwise.The tail lead 4 peripheries be equipped with several protrusions cantilever primary blades 41, the cantilever primary blades 41 from
The tail, which leads 4 outer ends and leads 4 around the tail to the rotor 3, to be extended spirally, and leads 4 to leading 2 viewing from the tail, the cantilever primary blades 41
The hand of spiral is counterclockwise.The end of each cantilever primary blades 41 extends to 3 periphery of rotor.Adjacent cantilever primary blades 41
Between be equipped with splitterr vanes 42, each 42 bending direction of splitterr vanes is corresponding with each cantilever primary blades 41.
Preferably, the cantilever primary blades 41 and the quantity of splitterr vanes 42 are two panels, symmetrical at equal intervals, and each point
4 are led with the tail and is flushed towards one end of the rotor 3 in stream 42 end of blade.Such design is so that cantilever primary blades 41 and shunting leaf
Piece 42 is small with the contact area of blood, flows blood according to the natural route that rotor 3 is oriented to it, due to making full use of
The thrust of blood of human body itself, can reduce the thrust of blade, give full play to the rectified action that tail leads 4, improve axial flow blood pump
Working efficiency.
The institute being exposed in the entire runner of the axial flow blood pump of the journal axles such as the utility model use and bearing arrangement in blood
Have wheel hub, the axis of component consistent with bearing diameter, the coordinate contact surface of axis and bearing be turn, quiet interface, eliminate bearing
The flow dead zone of surrounding, greatly reduces the thrombosis risk of rotor axle and position of bearings.The convex spherical and bearing of axis
Concave spherical surface radius unanimously make contact surface fully mated, concave-convex spherical surface, which is respectively less than hemisphere face, facilitates axis stability of rotation, then plus
Upper axis and the isometrical design feature of bearing eliminate turn, the flow dead zone of quiet interface, can effectively reduce thrombosis wind in pump
Danger.
The utility model is defined by claim.But it is based on this, those skilled in the art can make
Various obvious variations or change, all should be within the main spirits and protection scope of the utility model.
Claims (9)
1. the axial flow blood pump of the journal axles and bearing arrangement such as a kind of use, which is characterized in that including a cylindric casing, the machine
It is successively arranged leading, rotor in casket and tail is led；
It is arranged with silicon steel sheet outside the casing, which is arranged with coil, which is externally provided with coil housing, the coil housing end
Portion is equipped with upper shield, and internal coil is sealed；
The leading and tail, which is led, to be both secured in the casing, which is equipped with fore bearing, the rotor direction
The leading one end is equipped with front axle；The rotor is equipped with rear bearing towards one end that the tail is led, which leads one end towards the rotor
Equipped with rear axle；The front axle is in umbrella, has the first mounting portion and the first auxiliary section；First mounting portion be it is rod-shaped, be fixed on this
In the axis hole of rotor front end；The first auxiliary section diameter is greater than the diameter of first mounting portion, and end has the first of evagination to match
Conjunction face；The front axle loading end is T-shaped, has the second mounting portion and the second auxiliary section；Second mounting portion be it is rod-shaped, be fixed on this
In leading axis hole；The second auxiliary section diameter is greater than the diameter of second mounting portion, and end has the second mating surface of indent；
First mating surface is connect with the second mating surface corresponding matching；The rear axle is in umbrella, and there is third mounting portion and third to cooperate
Portion；The third mounting portion be it is rod-shaped, be fixed in the axis hole that the tail is led；The third auxiliary section diameter is greater than the third mounting portion
Diameter, end have the third mating surface of evagination；The rear axle loading end is T-shaped, has the 4th mounting portion and the 4th auxiliary section；It should
4th mounting portion be it is rod-shaped, be fixed in the axis hole of the rotor rear end；4th auxiliary section diameter is greater than the 4th mounting portion
Diameter, end have the 4th mating surface of indent；The third mating surface is connect with the 4th mating surface corresponding matching；
The rotor be in shuttle shape, periphery set there are two protrusion rotor blade；The rotor front end hub diameter and first auxiliary section
Diameter, the second auxiliary section diameter are all the same；The rotor rear end hub diameter and the third auxiliary section diameter, the 4th auxiliary section diameter
It is all the same；
The tail leads the cantilever primary blades that periphery is equipped with several protrusions, and the end of each cantilever primary blades extends to the rotor outer periphery；Phase
Splitterr vanes are equipped between adjacent cantilever primary blades, each splitterr vanes bending direction is corresponding with each cantilever primary blades.
2. the axial flow blood pump of the journal axles and bearing arrangement such as use according to claim 1, it is characterised in that: described second matches
Blind locating holes are equipped with inside conjunction face.
3. the axial flow blood pump of the journal axles and bearing arrangement such as use according to claim 2, it is characterised in that: the positioning blind
Hole is concave spherical surface.
4. the axial flow blood pump of the journal axles and bearing arrangement such as use according to any one of claim 1 to 3, feature exist
It is ceramic material in: the fore bearing and rear bearing, the front axle and rear axle are jewel axis.
5. the axial flow blood pump of the journal axles and bearing arrangement such as use according to any one of claim 1 to 3, feature exist
In: the rotor is hollow, and inside is equipped with magnet steel.
6. the axial flow blood pump of the journal axles and bearing arrangement such as use according to claim 1, it is characterised in that: the rotor leaf
Piece extends around the rotor helical-screw from leading close to described leading one end to the tail, leading leads viewing, this turn to the tail from this
The hand of spiral of blades is clockwise.
7. the axial flow blood pump of the journal axles and bearing arrangement such as use according to claim 6, it is characterised in that: the cantilever master
Blade is led outer end from the tail and is extended to the rotor around the tail driving screw, is oriented to the leading viewing, cantilever master from the tail
The hand of spiral of blade is counterclockwise.
8. the axial flow blood pump of the journal axles and bearing arrangement such as use according to claim 1, it is characterised in that: each shunting
Blade end is led towards one end of the rotor with the tail and is flushed.
9. the axial flow blood pump of the journal axles and bearing arrangement such as use according to claim 8, it is characterised in that: the cantilever master
The quantity of blade and splitterr vanes is two panels, symmetrical at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821416896.1U CN209221132U (en) | 2018-08-30 | 2018-08-30 | It is a kind of using etc. journal axles and bearing arrangement axial flow blood pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821416896.1U CN209221132U (en) | 2018-08-30 | 2018-08-30 | It is a kind of using etc. journal axles and bearing arrangement axial flow blood pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209221132U true CN209221132U (en) | 2019-08-09 |
Family
ID=67498258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821416896.1U Active CN209221132U (en) | 2018-08-30 | 2018-08-30 | It is a kind of using etc. journal axles and bearing arrangement axial flow blood pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209221132U (en) |
-
2018
- 2018-08-30 CN CN201821416896.1U patent/CN209221132U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100488577C (en) | Outer bearing type artificial heart blood pump | |
| US9943630B2 (en) | Impeller for axial flow pump | |
| US7762941B2 (en) | Blood pump bearings with separated contact surfaces | |
| CN205163763U (en) | Axial compressor blood vessel pump of no bearing of rotor magnetism liquid suspension | |
| CN204050452U (en) | A kind of heart assistance axial blood pump | |
| CN201618200U (en) | Intravascular mini blood supply pump | |
| WO2011069109A3 (en) | Total artificial heart | |
| CN104069555A (en) | Accessory axial-flow type blood pump for heart | |
| CN101121045A (en) | Sleeved type permanent magnetic impeller axial flow type blood pump for assisting heart and assisting method | |
| CN104162191B (en) | A kind of liquid magnetic suspension shaft streaming assistant blood pump for heart | |
| CN108273148A (en) | A kind of heat sink of implantable cardiac auxiliary blood pump | |
| CN102019002A (en) | Implanted hollow minimal axial blood pump | |
| CN103977464A (en) | Implantable miniature axial blood pump with gradually-changing flow zone at outlet | |
| CN204106671U (en) | A kind of miniature apex of the heart axial blood pump | |
| CN104162192A (en) | Liquid levitation axial-flow type blood pump | |
| CN107349484A (en) | Suspension rotor blood pump and pumping system | |
| CN209221132U (en) | It is a kind of using etc. journal axles and bearing arrangement axial flow blood pump | |
| CN200977306Y (en) | Minitype implantable axial flow type heart assist blood pump | |
| CN109106992A (en) | It is a kind of using etc. journal axles and bearing arrangement axial flow blood pump | |
| CN109420207B (en) | Blood pump device | |
| CN209253755U (en) | A kind of axial-flow type heart chamber auxiliary pump using the conical surface and spherical bearing structure | |
| CN209187708U (en) | A kind of axial flow blood pump led using double cantilever blade tails | |
| CN210904322U (en) | Ventricular assist pump without hub and adopting two-section type front and rear guide vane structure | |
| CN209253756U (en) | A kind of axial flow blood pump of tail conduction band primary blades and splitterr vanes | |
| CN103861162A (en) | Self-balanced stress type artificial heart pump shell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |