CN107313914A - A kind of contactless circulating pump - Google Patents
A kind of contactless circulating pump Download PDFInfo
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- CN107313914A CN107313914A CN201710739174.3A CN201710739174A CN107313914A CN 107313914 A CN107313914 A CN 107313914A CN 201710739174 A CN201710739174 A CN 201710739174A CN 107313914 A CN107313914 A CN 107313914A
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- Prior art keywords
- tensioner
- runner
- spring
- pump
- hairspring
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/02—Blood transfusion apparatus
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/02—Blood transfusion apparatus
- A61M1/029—Separating blood components present in distinct layers in a container, not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Vascular Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pathology (AREA)
- External Artificial Organs (AREA)
Abstract
The present invention relates to a kind of contactless circulating pump, which solve existing blood transfusion apparatus when in use, the pump housing is easily polluted to blood, in the presence of health and the technical problem of potential safety hazard, it includes pump head, motor and rotating shaft, and pump head includes the pump housing, the both sides of the pump housing are connected with the first runner and the second runner, second runner and the first runner are symmetrical arranged, and the lower end of the rotating shaft and the output shaft of motor are connected, and the upper end of rotating shaft is connected with the pump housing.The present invention is widely used in technical field of medical instruments.
Description
Technical field
The present invention relates to technical field of medical instruments, in particular to a kind of contactless circulating pump.
Background technology
With the development of medical technology, transfusion procedure clinically can use pump, and flexible pipe is linked into blood transfusion apparatus, blood transfusion apparatus
Power is provided by the blood flow in flexible pipe, when in use, the blood in flexible pipe can flow through the pump housing to existing blood transfusion apparatus, and blood is not
It is to be flowed completely in the flexible pipe of closing, blood easily pollutes by the pump housing, there is health and potential safety hazard.
Transfusion procedure clinically, more and more using by component blood transfusion from the neccessary composition in blood to patients with transfusion
Technology, so as to instead of transfusion of whole blood mode.The existing method and apparatus for being used to gather composition in blood mainly has Filter film type
Single blood sampling cell method, and discontinuous flow centrifugation method.Wherein, the main molecular sieve using filter membrane of Filter film type haemocyte separation is special
Property, by the blood platelet and other blood cell compositions (red blood cell, leucocyte, granulocyte etc.) point of blood plasma or granular size not etc.
From, this method is mainly used in patients blood plasma's displacement or donor plasma/hematoblastic collection, and clinically the scope of application is narrow,
Using limited.The process of discontinuous flow centrifugation method is, in blood sampling blood flowed into after venipuncture anti-freezing Centrifuge Cup carry out from
The heart is separated, and heterogeneity is separated and collected under the influence of centrifugal force, by red blood cell and other compositions after the completion of this process
Feed back to donor, the composition separation of this method and to collect and feed back step be not progress simultaneously, it is low to there is collecting efficiency, into
Power is low, the problem of blood constituent purity isolated is low.
The content of the invention
The present invention is exactly that the pump housing is easily polluted to blood, there is health in order to solve existing blood transfusion apparatus when in use
And there is provided a kind of contactless circulating pump for not resulting in blood pollution for the technical problem of potential safety hazard.
The technical scheme is that, including pump head, motor and rotating shaft, pump head include the pump housing, and the both sides of the pump housing are connected with
First runner and the second runner, the second runner and the first runner are symmetrical arranged, and the lower end of rotating shaft and the output shaft of motor are connected, and are turned
The upper end of axle is connected with the pump housing.
Preferably, pump head also includes the first runner support, the first runner shaft, the second runner support, the second runner shaft, first
Screw, the second screw, the first tensioner hairspring, the first tensioner bulky spring, the second tensioner hairspring and the second tensioner bulky spring, the
One runner, the second runner are respectively equipped with central through hole, and first runner shaft is connected with the first runner support vertical, and described first
Rotaring wheeling sleeve is on the first runner shaft, and the second runner shaft is connected with the second runner support vertical, and the second rotaring wheeling sleeve is in the second runner shaft
On；
The middle part of first screw through the first runner support is connected with the pump housing, the first tensioner hairspring and the thick bullet of the first tensioner
Spring is enclosed on the first screw, and the first tensioner bulky spring is located in the periphery of the first tensioner hairspring, the first runner support
The back side in portion is provided with the first tensioner hairspring erecting bed and the first tensioner bulky spring erecting bed, and the pump housing holds provided with the first spring
Receive groove, one end of the first tensioner hairspring is acted against on the first tensioner hairspring erecting bed, the other end acts against the first spring appearance
Receive the bottom surface of groove；One end of the first tensioner bulky spring is acted against on the first tensioner bulky spring erecting bed, and the other end is acted against
The bottom surface of first spring-housing groove；
The middle part of second screw through the second runner support is connected with the pump housing, the second tensioner hairspring and the thick bullet of the second tensioner
Spring is enclosed on the second screw, and the second tensioner bulky spring is located in the periphery of the second tensioner hairspring, the second runner support
The back side in portion is provided with the second tensioner hairspring erecting bed and the second tensioner bulky spring erecting bed, and the pump housing holds provided with second spring
Receive groove, one end of the second tensioner hairspring is acted against on the second tensioner hairspring erecting bed, and the other end acts against the second bullet
The bottom surface of spring holding tank；One end of the second tensioner bulky spring is acted against on the second tensioner bulky spring erecting bed, other end top
Lean against the bottom surface of second spring holding tank.
Preferably, the first tensioner silk is connected between the head of the first screw and the front at the middle part of the first runner support
The second tensioner silk pad is connected between the front at the middle part of pad, the head of the second screw and the second runner support.
Preferably, contactless circulating pump also includes flexible pipe placement rack and supporting plate, and flexible pipe placement rack is connected to supporting plate
On, the flexible pipe placement rack is provided with U-lag, and the flexible pipe placement rack is hollow, and the pump head is located in the middle part of flexible pipe placement rack
Space in.
Preferably, contactless circulating pump also includes jacket casing；The lower end of jacket casing and the pedestal of motor are connected, upper end and support
Plate is connected.
Preferably, pump head also includes pump cover, and the top center of rotating shaft is diametrically provided with transverse groove, the rotating shaft
Side be provided with the slot for cotter of L-shaped first and the slot for cotter of L-shaped second, the first slot for cotter connect with transverse groove, the second slot for cotter and horizontal stroke
Connected to groove, central through hole of the pump housing provided with axial direction is radially connected with the central through hole and pulled pin, it is described in
Heart through hole is connected with spring pad, and spring pad is located at top of pulling pin, pump is connected between the top inner wall and spring pad of the pump cover
Lid spring.
The present invention also provides a kind of transfusion set, including contactless circulating pump, in addition to mixing liquid centrifugation laminating machine
Structure, mixing liquid centrifugation lamination mechanism includes separation band load plate, rotating hub, differential planetary bevel gear system, motor and main shaft；The difference
Fast bevel planet gear system includes planetary gear, fixed bevel gear and with dynamic bevel gear, and the planetary gear is connected radially to rotating hub
Above and simultaneously engaged with fixed bevel gear, with dynamic bevel gear；The lower end of the main shaft and the output shaft of motor are connected, and upper end is with turning
The bottom connection of hub；The separation is connected with load plate with the top of dynamic bevel gear, is connected with the top of the rotating hub in bearing
Set, the outer wall of the bearing inner sleeve and is connected with bearing between the inwall of dynamic bevel gear；
The side of rotating hub is connected with stator, and the planetary gear is connected with rotor, is connected between the rotor and stator
Bearing；The rotating hub is connected with balancing weight；The rotating hub is connected with support；The separation band load plate is connected with pipe support assembly, institute
Stating the middle part of rotating hub has sunk part；The separation band load plate is provided with annular groove；
Bearing between rotor and stator has two, is taper roll bearing and ball bearing respectively, the rotor it is interior
Wall is provided with annular boss, and the taper roll bearing is located at outside, and the ball bearing is located at inner side, and the stator passes through screw
Nut pad is connected with, the taper roll bearing is located between nut pad and annular boss, and the outer ring of the ball bearing is leaned
On annular boss, the rotor is provided with ring flange, and the planetary gear is fixedly connected with the ring flange of rotor；
Mixing liquid centrifugation lamination mechanism also includes mainshaft gear set, the bottom of the mainshaft gear set and the front end of motor
Lid connection, the top of mainshaft gear set is connected with fixed bevel gear, is connected between the inwall of main shaft and the mainshaft gear set
Bearing；
Mixing liquid centrifugation lamination mechanism also includes support frame, and support frame as described above is connected with mainshaft gear set.
The beneficial effects of the invention are as follows during blood transfusion, blood flows completely in the flexible pipe of closing, without going past the pump housing, Du
Pump pollutes to blood the generation of problem absolutely.In addition, also having the advantages that efficiency high, stability height, reliability are high.Runner
It is adjustable and stretching motion can be done in the position of radial direction, it is easy to the installation of pipeline consumptive material with unloading, adapts to the pipe of different-diameter
Road, the extruding force to hose surface formation relative constancy.
Contactless circulating pump coordinates mixing liquid centrifugation lamination mechanism to use, and blood is carried out with can entering Line Continuity
Separation, collection, blood separation all completions in the pipeline of enclosing sterilizing, each extracorporal circulatory system blood volume is less, after collection other
Blood constituent can not have sense of discomfort with direct feedback to human body, blood donor.Separation of the present invention to blood constituent, collecting efficiency
Height, success rate is high, and the blood constituent purity isolated is high, and separation process is reliable and stable.
Further aspect of the present invention, by the description of detailed description below, is clearly stated that.
Brief description of the drawings
Fig. 1 is the stereogram of contactless circulating pump；
Fig. 2 is the schematic diagram that structure shown in Fig. 1 removes flexible pipe placement rack；
Fig. 3 is the sectional view of contactless circulating pump；
Fig. 4 is the stereogram of pump head；
Fig. 5 is the structural representation of pump head；
Fig. 6 is pump head sectional view；
Fig. 7 is the partial enlarged drawing of part in Fig. 6；
Fig. 8 is the schematic diagram that flexible pipe is arranged in flexible pipe placement rack；
Fig. 9 is the top view of rotating shaft；
Figure 10 is the front view of rotating shaft；
Figure 11 is the rearview of rotating shaft；
Figure 12 is the stereogram that mixing liquid centrifuges lamination mechanism；
Figure 13 is the sectional view that mixing liquid centrifuges lamination mechanism；
Figure 14 is the schematic diagram of differential planetary bevel gear system；
Figure 15 is the structural representation of bracket head；
Figure 16 is the top view of pipe support assembly；
Figure 17 is the structural representation of annular release band.
Symbol description in figure：
1. pump cover, 2. flexible pipe placement racks, 201.U shape grooves, 3. supporting plates, 4. servomotors, 5. rotating shafts, 501. first pull pin
Groove, 502. second slot for cotters, 503. transverse grooves, 6. rotor fixing axles, 7. first runner shafts, 8. first runners, 9. first runners
Support, 901. first tensioner hairspring erecting beds, 902. first tensioner bulky spring erecting beds, 10. first screws, 11. first rise
Tight silk pad, 12. first tensioner hairsprings, 13. first tensioner bulky springs, 14. magnet, 15. pull pin, 16. spring pads, 17. pump covers
Spring, 18. pump housings, 1801. first spring-housing grooves, 1802. clicking sections, 181. central through holes, 19. holding screws, 20. rotors
Fixing axle bushing, 21. runner bushings, 22. second runners, 23. second runner shafts, 24. jacket casings, 25. second runner supports, 26.
Flexible pipe；
1a. separation band load plates, 101. annular grooves, 2a. pipe support assemblies, 3a. sunk screws, 4a. supports, 401. bracket heads, 5a.
Sunk screw, 6a. swivel heads, 7a. annular release bands, the outlet of 701. blood platelets, 702. plasma outlet ports, 703. red blood cell exits,
704. blood entry ports, 8a. is with dynamic bevel gear, 9a. bearings, 10a. rotating hubs, 11a. screws, 12a. mainshaft gear sets, 1201. fixations
Taper roller axle under bevel gear, 13a. support frames, 14a. support skin wrists, 15a. supporting pads, 16a. screws, 17a. nuts, 18a.
Hold, the upper taper roll bearings of 19a., 20a. bearing nuts, 21. circular washers, 22a. bearings friction packing ring, 23a. connection
Axle device, 24a. servomotors, 25a. screws, 26a. main shafts, 27. screws, 28. end caps, 29. 0 type sealing rings, 30. nut pads,
31. screw, 32. taper roll bearings, 33. screws, 34. nuts, 35. planetary gears, 36. screws, 37. rotors, 3701. annulars
Boss, 38. bearing inner sleeves, 39. screws, 40. rotating hub sealing gaskets, 41. balancing weights, 42. spindle nose terminal pads, 43. stators, 44. rollings
Pearl bearing.
Embodiment
Referring to the drawings, the present invention is described in further detail with specific embodiment.
As shown in figures 1 to 6, contactless circulating pump includes pump head, flexible pipe placement rack 2, supporting plate 3, servomotor 4, rotating shaft
5th, jacket casing 24, the lower end of rotating shaft 5 is connected with the output shaft of servomotor 4, and the upper end of rotating shaft 5 is connected with pump head, under jacket casing 24
End is connected with the pedestal of servomotor 4, and the upper end of jacket casing 24 is connected with supporting plate 3.Flexible pipe placement rack 2 is arranged in supporting plate 3.
The edge of flexible pipe placement rack 2 is provided with U-lag 201, and flexible pipe placement rack 2 is hollow, and pump head is located at the sky at the middle part of flexible pipe placement rack 2
In.
Pump head includes the pump housing 18, pump cover 1, the first runner support 9, the first runner shaft 7, the first runner 8, the second runner support
25th, the second runner 22, the second runner shaft 23, the first runner 8, the second runner 22, which are respectively provided with through the center of runner shaft, to be led to
Hole, the first runner shaft 7 is vertical with the first runner support 9 to be connected, and the first runner 8 is enclosed on the first runner shaft 7, the energy of the first runner 8
It is enough to be rotated with the first runner shaft 7 for axis.Second runner shaft 23 is vertical with the second runner support 25 to be connected, and the second runner 22 is enclosed on
On second runner shaft 23, the second runner 22 can be rotated with the second runner shaft 23 for axis.
First screw 10 through the middle part (middle part of the first runner support 9 be located at vertical direction) of the first runner support 9 with
The pump housing 18 is connected, and the first tensioner hairspring 12 and the first tensioner bulky spring 13 are enclosed on the first screw 10, the thick bullet of the first tensioner
Spring 13 is located at the periphery of the first tensioner hairspring 12.One end of first tensioner hairspring 12 is acted against in the first runner support 9
On portion part, the other end is acted against on the pump housing 18.Holding screw 19 is arranged on the pump housing 18 and contacted with the end of the first screw 10.
As shown in fig. 7, being connected with the first tensioner silk pad between the head of the first screw 10 and the front at the middle part of the first runner support 9
11, the back side (close to the face of the pump housing 18) at the middle part of the first runner support 9 is provided with the first tensioner hairspring erecting bed 901 and first
Tensioner bulky spring erecting bed 902, the pump housing 18 is provided with the first spring-housing groove 1801.One end of first tensioner hairspring 12 is acted against
On first tensioner hairspring erecting bed 901, the other end acts against the bottom surface of the first spring-housing groove 1801.First tensioner bulky spring
13 one end is acted against on the first tensioner bulky spring erecting bed 902, and the other end acts against the bottom surface of the first spring-housing groove 1801.
Under the tension force effect of the first tensioner bulky spring 13 and the first tensioner hairspring 12, the middle part of the runner support 9 of the pump housing 18 and first
Between there is gap.The end of first screw 10 is threadedly coupled with the pump housing 18, can adjust the pump housing with elastic first screw 10
18 and first gap between runner support 9 distance, so as to adjust the outwardly directed position of the first runner 8.Two tensioners are set
Spring is used for runner and moved in the integral telescopic of radial direction, is easy to the installation and unloading of pipeline consumptive material, adapts to different-diameter
Pipeline, the extruding force to hose surface formation relative constancy.
Second runner 22 and the first runner 8 are symmetrical arranged, and the second runner support 25 is symmetrical arranged with the first runner support 9.
Connected mode between second runner support 25 and the pump housing 18 is identical with the connected mode of the first runner support 9 and the pump housing 18, leads to
Cross the second screw, the second tensioner hairspring, the connection of the second tensioner bulky spring.Second screw passes through the middle part of the second runner support 25
(middle part of the second runner support 25 is located at vertical direction) is connected, the second tensioner hairspring and the second tensioner bulky spring with the pump housing 18
It is enclosed on the second screw, the second tensioner bulky spring is located at the periphery of the second tensioner hairspring.One end top of second tensioner hairspring
On the mid portion for leaning against the second runner support 25, the other end is acted against on the pump housing 18.Holding screw be arranged on the pump housing 18 on
The end contact of second screw.Second is connected between the head of second screw and the front at the middle part of the second runner support 25 to rise
Tight silk pad, the back side (close to the face of the pump housing 18) at the middle part of the second runner support 25 is provided with the second tensioner hairspring erecting bed and the
Two tensioner bulky spring erecting beds, the pump housing 18 is provided with second spring holding tank.One end of second tensioner hairspring acts against second and risen
On tight hairspring erecting bed, the other end acts against the bottom surface of second spring holding tank.One end of second tensioner bulky spring is acted against
On second tensioner bulky spring erecting bed, the other end acts against the bottom surface of second spring holding tank.In the second tensioner bulky spring and
Under the tension force effect of two tensioner hairsprings, there is gap between the middle part of the runner support 25 of the pump housing 18 and second.Second screw
End is threadedly coupled with the pump housing 18, can be with elastic second screw so as to adjust gap between the runner support 25 of the pump housing 18 and second
Distance, so as to adjust the outwardly directed position of the second runner 22.
The bottom surface of the pump housing 18 is connected with magnet 14.Magnet 14 is used cooperatively with outside magnetic induction sensor, realizes the rotation of pump
Turn-take counting number function.The number of magnet 14 can set two, and two are oppositely arranged, and the pump head magnetic induction sensor that turns around is defeated
The number for going out signal is more, and signal is stronger more, and it is more accurate that rotating cycle is counted, and angle segmentation is more accurate.And magnet can allow pump
Stop at accurate location, it is ensured that the accuracy that start and stop bit is put.
The upper end of rotating shaft 5 is connected with the pump housing 18, and the drive shaft 5 of servomotor 4 rotates, and rotating shaft 5 drives the pump housing 18 to rotate, pump
Body 18 drives the second runner 22 and the first runner 8 of its both sides to rotate.As shown in figure 8, the flexible pipe 26 of blood transfusion is placed on flexible pipe placement
In the U-lag 201 of seat 2, with the block face of the inwall of U-lag 201, two runners are constantly extruded flexible pipe 26, so that soft
Blood flow in pipe 26, reaches the purpose of conveying blood.
As shown in figs. 9-11, the top center of rotating shaft 5 is diametrically provided with transverse groove 503, and the side of rotating shaft 5 is set
Have L-shaped the first slot for cotter 501, the second slot for cotter 502, the first slot for cotter 501 is connected with transverse groove 503, the second slot for cotter 502 with
Transverse groove 503 is connected.
With reference to shown in Fig. 3 and 6, the pump housing 18, which is provided with the central through hole 181 of axial direction, central through hole 181, radially pacifies
Dress pulls pin 15, on the connection central through hole 181 of spring pad 16, and spring pad 16 is located at 15 tops of pulling pin, spring pad 16 and pull pin 15 it
Between there is gap.Pump cover spring 17 is connected between the top inner wall and spring pad 16 of pump cover 1.The top of the pump housing 18 is close to pump cover
Clicking section 1802 is provided with 1.In an initial condition, pump cover spring 17 opens completely, and the edge of pump cover 1 does not connect with clicking section 1802
Touch, when pressing down on pump cover 1 with hand, pump cover 1 is moved down, and pump cover spring 17 is compressed, and the edge of pump cover 1 connects with clicking section 1802
Touch, pump cover 1 is rotated with hand, the edge of pump cover 1 promotes clicking section 1802 pump housing 18 is rotated the (top of rotating shaft 5 centered on rotating shaft 5
It is inserted into central through hole 181, as shown in Figure 3), 15 concomitant rotations of pulling pin make it be pushed up from rotating shaft 5 so as to adjust 15 positions of pulling pin
The transverse groove 503 in portion is entered in the first slot for cotter 501, the second slot for cotter 502 (as shown in Figure 10,11), and now the pump housing 18 is just
Linked together by pulling pin 15 with rotating shaft 5, then trip spring 17, pump cover spring 17, which opens, makes pump cover 1 return to initial bit
Put.Start servomotor 4, servomotor 4 drives rotating shaft 5 to rotate, and rotating shaft 5 drives the pump housing 18 to rotate, so as to drive the second runner
22 and the rotary work of the first runner 8.Setting is pulled pin 15 to be removably connected with rotating shaft 5, is to dismount pump head for convenience, can
Flexible pipe is put into flexible pipe placement rack 2 to facilitate.
It is above-mentioned that following centrifugation lamination mechanism can be coordinated to use, complete the process of totally-enclosed automatic data collection blood constituent.Under
Introduce the technical scheme of centrifugation lamination mechanism in face：
As shown in figs. 12-14, mixing liquid centrifugation lamination mechanism include separation band load plate 1a, pipe support assembly 2a, support 4a,
Swivel head 6a, with dynamic bevel gear 8a, rotating hub 10a, planetary gear 35, mainshaft gear cover 12a, support frame 13a, servomotor 24a,
Main shaft 26a.Support frame 13a is remained stationary, for supporting whole mixing liquid centrifugation lamination mechanism.
Mainshaft gear set 12a bottom is connected with servomotor 24a drive end bearing bracket, and mainshaft gear set 12a top is provided with
Fixed bevel gear 1201, is fixedly connected between mainshaft gear set 12a middle part and support frame 13a by screw 27.
Main shaft 26a lower end is connected by shaft coupling 23a with servomotor 24a output shaft, spindle nose terminal pad 42 and master
Axle 26a upper end is fixedly connected, and spindle nose terminal pad 42 is fixedly connected with rotating hub 10a bottom by screw 36.Main shaft 26a's is upper
Taper roll bearing 19a, main shaft 26a top and mainshaft gear set are connected between portion and mainshaft gear set 12a inwall
Lower taper roll bearing 18a is connected between 12a inwall.Circular washer 21a is enclosed on main shaft 26a lower end, bearing nut 20a
It is connected with main shaft 26a lower end, bearing is located between bearing nut 20a and circular washer 21a with friction packing ring 22a.Circle
Packing ring 21a can play a part of the lower taper roll bearing 18a of support.
Support 4a lower end is fixedly connected by screw with rotating hub 10a top.
Stator 43 is vertical with rotating hub 10a side to be fixedly connected, a ball bearing 44 and a taper roll bearing 32
It is enclosed on stator 43, taper roll bearing 32 is located at outside, ball bearing 44 is located at inner side.In the root of stator 43, ball axle
Hold and be connected with wavy spring and packing ring between 44 and rotating hub 10a bodies.Screw 31 is connected through nut pad 30 with stator 43, nut
Taper roll bearing 32 is pressed on the annular boss 3701 on the inwall of rotor 37 by pad 30, prevents the axle of taper roll bearing 32
To play, it is ensured that stability when rotor 37 is rotated, so as to ensure the stability that planetary gear 35 is rotated.Outside ball bearing 44
Circle is acted against on annular boss 3701.The outer ring of taper roll bearing 32 is connected with the inwall of rotor 37, outside ball bearing 44
Circle is connected with the inwall of rotor 37.Rotor 37 is provided with ring flange, by screw 33 and nut 34 by planetary gear 35 and rotor 37
Ring flange and end cap 28 be fixedly connected.Zero type sealing ring 29 is connected between end cap 28 and rotor 37.
Planetary gear 35 is engaged with fixed bevel gear 1201, is engaged with dynamic bevel gear 8a with planetary gear 35.Fixed cone tooth
Wheel 1201 is equal with the number of teeth with dynamic bevel gear 8a and on same axis, and the radially installed of planetary gear 35 is on rotating hub 10a
And engaged simultaneously with fixed bevel gear 1201, with dynamic bevel gear 8a, form differential planetary bevel gear system.Servomotor 24a drives
Dynamic rotating hub 10a is rotated with rotating speed n, and planetary gear 35 revolves round the sun along fast pulley and around own axes rotation, driven with mantle tooth therewith
Take turns 8a to rotate with 2n rotating speed, so as to realize 2 times of differential drivings.
Swivel head 6a is fixedly connected with the top with dynamic bevel gear 8a by sunk screw 5a, separation band load plate 1a and rotation
Rotary head 6a is fixedly connected.
It will be fixed together by screw 39 at the top of bearing inner sleeve 38 and rotating hub 10a, the outer wall of bearing inner sleeve 38
Bearing 9a is connected between the inwall with dynamic bevel gear 8a.Can be using bearing 9a to be supported on bearing inner sleeve with dynamic bevel gear 8a
Rotated on 38.
Balancing weight 41 is fixedly mounted on to rotating hub 10a bottom by screw 11a.
Rotating hub 10a is not the cylinder of a regular shape, and there is sunk part at its middle part, and sunk part has cambered surface depression.
Rotating hub 10a can be hollow, and it is provided with mouth, and pipeline can enter through hollow parts at opening, through bearing inner sleeve 38
Enter separation band load plate 1a.Support 4a is arranged on rotating hub 10a sunk parts side.
By screw 16a and nut 17a skin wrist 14a will be supported to be arranged on support frame 13a, supporting pad 15a is located at nut 17a
Between support skin wrist 14a.
By sunk screw 3a by pipe support assembly 2a with separating band load plate 1a connections.As shown in figure 15, the branch on support 4a
Frame first 401 is made up of two parts, can support Blood transfusion tubeline.Support 4a generally arcs shown in figure, are conducive to support 4a
Dynamic balancing when being rotated at a high speed with rotating hub 10a, it is ensured that the stability of system.It should be noted that support 4a can take any
The known features of pipeline can be supported.
As shown in figure 16, pipe support assembly 2a is provided with manhole, and Blood transfusion tubeline may pass through the through hole, so as to support blood transfusion
Pipeline.It should be noted that pipe support assembly 2a can take and any can support the known features of pipeline.
Separation band load plate 1a is provided with annular groove 101, and annular groove 101 is used to place annular release band.
As shown in figure 17, body of the annular release with 7a has two ends, and one of end is connected with blood platelet outlet
701st, plasma outlet port 702, red blood cell exit 703, another end is connected with blood entry port 704.Body of the annular release with 7a
It is vertical to be put into annular groove 101 of the separation with load plate 1a, blood receiving space is provided with body of the annular release with 7a.Blood entry port
704 are connected to human vein by intake line, and the pipeline passes through pipe support assembly 2a manhole.Blood platelet outlet 701, blood
Slurry outlet 702, red blood cell exit 703 are connected to external process devices by three independent extraction flexible pipes respectively, these three pipes
Road is placed on bracket head 401.
When servomotor 24a driving rotating hubs 10a rotates at a high speed, because separation band load plate 1a is arranged on dynamic bevel gear 8a
On, support 4a is arranged on rotating hub 10a, then in centrifugal process, and rotating speed of the annular release with 7a is 2 times of support 4a, due to
Extraction flexible pipe natural resiliency on bracket head 401 can passively eliminate bird caging, thus pipeline can only periodically occur it is less
Local space reverses (limiting value is 180 °) to effectively prevent the occurrence of pipeline knots.
In centrifugal process, it can radially produce each composition in operating on centrifugal force, whole blood along annular release band 7a and centrifuge
Move and precipitate to centrifugation band outside under effect, the settling rate of the composition such as blood platelet, red blood cell is different, and blood can be formed
Plasma layer from inside to outside, the tunica albuginea layer different aspects such as (blood platelet and leucocyte mixture) and red blood cell layer, further, each layer
It can be collected by plasma outlet port 702, blood platelet outlet 701, red blood cell exit 703 and the corresponding flexible pipe that extracts.So
Separation, gatherer process efficiency it is very high, success rate is high, and the blood constituent purity isolated is high, and separation process is reliable and stable.
In centrifugal process, the mass eccentricity of mechanism will cause system vibration, influence blood layered effect, make pipeline blood
In oxygen dissociate and form vapour lock, influence the reliability of sanguimotor continuity and Mechatronic Systems, therefore to whole mechanism
Debugged on dynamic balance instrument, adjust the quantity, weight, position of balancing weight 41, suppress the intensity of vibration.
The extraction flexible pipe being connected with plasma outlet port 702, blood platelet outlet 701 or red blood cell exit 703 is put into flexible pipe to put
(as shown in Figure 8) is put in the U-lag 201 of seat 2, pump head is rotated, two runners are constantly extruded flexible pipe, so that flexible pipe
Interior blood component flow, reaches the purpose of conveying blood constituent.
It is described above to be not intended to limit the invention only to the preferred embodiments of the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.
Claims (7)
1. a kind of contactless circulating pump, it is characterised in that including pump head, motor and rotating shaft, the pump head includes the pump housing, described
The both sides of the pump housing are connected with the first runner and the second runner, and the second runner and the first runner are symmetrical arranged, the lower end of the rotating shaft
It is connected with the output shaft of motor, the upper end of rotating shaft is connected with the pump housing.
2. a kind of contactless circulating pump according to claim 1, it is characterised in that the pump head also includes the first runner
Support, the first runner shaft, the second runner support, the second runner shaft, the first screw, the second screw, the first tensioner hairspring, first
Tensioner bulky spring, the second tensioner hairspring and the second tensioner bulky spring, first runner, the second runner are respectively equipped with center and led to
Hole, first runner shaft is connected with the first runner support vertical, and first rotaring wheeling sleeve is on the first runner shaft, and described second
Runner shaft is connected with the second runner support vertical, and second rotaring wheeling sleeve is on the second runner shaft；
The middle part of first screw through the first runner support is connected with the pump housing, the first tensioner hairspring and the thick bullet of the first tensioner
Spring is enclosed on the first screw, and the first tensioner bulky spring is located in the periphery of the first tensioner hairspring, the first runner support
The back side in portion is provided with the first tensioner hairspring erecting bed and the first tensioner bulky spring erecting bed, and the pump housing holds provided with the first spring
Receive groove, one end of the first tensioner hairspring is acted against on the first tensioner hairspring erecting bed, the other end acts against the first spring appearance
Receive the bottom surface of groove；One end of the first tensioner bulky spring is acted against on the first tensioner bulky spring erecting bed, and the other end is acted against
The bottom surface of first spring-housing groove；
The middle part of second screw through the second runner support is connected with the pump housing, the second tensioner hairspring and the thick bullet of the second tensioner
Spring is enclosed on the second screw, and the second tensioner bulky spring is located in the periphery of the second tensioner hairspring, the second runner support
The back side in portion is provided with the second tensioner hairspring erecting bed and the second tensioner bulky spring erecting bed, and the pump housing holds provided with second spring
Receive groove, one end of the second tensioner hairspring is acted against on the second tensioner hairspring erecting bed, and the other end acts against the second bullet
The bottom surface of spring holding tank；One end of the second tensioner bulky spring is acted against on the second tensioner bulky spring erecting bed, other end top
Lean against the bottom surface of second spring holding tank.
3. a kind of contactless circulating pump according to claim 2, it is characterised in that the head of first screw and the
The first tensioner silk pad, the head of second screw and the second runner support are connected between the front at the middle part of one runner support
Middle part front between be connected with the second tensioner silk pad.
4. a kind of contactless circulating pump according to claim 1,2 or 3, it is characterised in that the contactless circulation
Pump also includes flexible pipe placement rack and supporting plate, and the flexible pipe placement rack is connected in supporting plate, and the flexible pipe placement rack is provided with U-shaped
Groove, the flexible pipe placement rack is hollow, and the pump head is located in the space in the middle part of flexible pipe placement rack.
5. a kind of contactless circulating pump according to claim 4, it is characterised in that the contactless circulating pump is also wrapped
Include jacket casing；The lower end of the jacket casing and the pedestal of motor are connected, and upper end is connected with supporting plate.
6. a kind of contactless circulating pump according to claim 5, it is characterised in that：
The pump head also includes pump cover, and the top center of the rotating shaft is diametrically provided with transverse groove, the rotating shaft
Side is provided with the slot for cotter of L-shaped first and the slot for cotter of L-shaped second, and the first slot for cotter is connected with transverse groove, the second slot for cotter and transverse direction
Groove is connected, central through hole of the pump housing provided with axial direction, is radially connected with and is pulled pin in the central through hole, the center
Through hole is connected with spring pad, and spring pad is located at top of pulling pin, pump cover is connected between the top inner wall and spring pad of the pump cover
Spring.
7. a kind of transfusion set, it is characterised in that：Including contactless circulating pump as claimed in claim 5, in addition to mixing
Liquid centrifuges lamination mechanism, and the mixing liquid centrifugation lamination mechanism includes separation band load plate, rotating hub, differential planetary bevel gear
System, motor and main shaft；The differential planetary bevel gear system includes planetary gear, fixed bevel gear and with dynamic bevel gear, the row
Star gear is connected radially in rotating hub and engaged simultaneously with fixed bevel gear, with dynamic bevel gear；The lower end of the main shaft and motor
Output shaft connection, the bottom of upper end and rotating hub is connected；The separation is connected with load plate with the top of dynamic bevel gear, described turn
It is connected with bearing inner sleeve at the top of hub, the outer wall of the bearing inner sleeve and is connected with bearing between the inwall of dynamic bevel gear；
The side of the rotating hub is connected with stator, and the planetary gear is connected with rotor, is connected between the rotor and stator
Bearing；The rotating hub is connected with balancing weight；The rotating hub is connected with support；The separation band load plate is connected with pipe support assembly, institute
Stating the middle part of rotating hub has sunk part；The separation band load plate is provided with annular groove；
Bearing between the rotor and stator has two, is taper roll bearing and ball bearing respectively, the rotor it is interior
Wall is provided with annular boss, and the taper roll bearing is located at outside, and the ball bearing is located at inner side, and the stator passes through screw
Nut pad is connected with, the taper roll bearing is located between nut pad and annular boss, and the outer ring of the ball bearing is leaned
On annular boss, the rotor is provided with ring flange, and the planetary gear is fixedly connected with the ring flange of rotor；
The mixing liquid centrifugation lamination mechanism also includes mainshaft gear set, the bottom of the mainshaft gear set and the front end of motor
Lid connection, the top of mainshaft gear set is connected with fixed bevel gear, is connected between the inwall of main shaft and the mainshaft gear set
Bearing；
The mixing liquid centrifugation lamination mechanism also includes support frame, and support frame as described above is connected with mainshaft gear set.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710739174.3A CN107313914B (en) | 2017-08-25 | 2017-08-25 | A kind of contactless circulating pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710739174.3A CN107313914B (en) | 2017-08-25 | 2017-08-25 | A kind of contactless circulating pump |
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| CN107313914A true CN107313914A (en) | 2017-11-03 |
| CN107313914B CN107313914B (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN107918008A (en) * | 2017-12-22 | 2018-04-17 | 深圳市德胜医疗设备有限公司 | A kind of hose pumping equipment |
| CN109224285A (en) * | 2018-07-12 | 2019-01-18 | 合肥市第二人民医院 | A kind of negative pressure drainage pipe connection |
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|---|---|
| CN107313914B (en) | 2019-01-22 |
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