CN2649089Y - Gap-adjustable rotary blood pump - Google Patents
Gap-adjustable rotary blood pump Download PDFInfo
- Publication number
- CN2649089Y CN2649089Y CN 03209455 CN03209455U CN2649089Y CN 2649089 Y CN2649089 Y CN 2649089Y CN 03209455 CN03209455 CN 03209455 CN 03209455 U CN03209455 U CN 03209455U CN 2649089 Y CN2649089 Y CN 2649089Y
- Authority
- CN
- China
- Prior art keywords
- blood pump
- core
- nip drum
- adjustment
- press roll
- 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.)
- Expired - Fee Related
Links
- 239000008280 blood Substances 0.000 title claims abstract description 31
- 210000004369 blood Anatomy 0.000 title claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 238000005096 rolling process Methods 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 150000001879 copper Chemical class 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000017531 blood circulation Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002612 cardiopulmonary effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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- External Artificial Organs (AREA)
Abstract
Provided is a rotary type blood pump with adjustable clearance, which relates to a rotary type blood pump with adjustable clearance used for exosomatic blood circulation. The utility model comprises a base and a rolling core arranged in the base, the rolling core is provided with an adjustment shaft with an adjustment rotary knob therein, the two ends of the adjustment shaft are combined with a left and a right transmission buckles by a left and a right rotation thread, and connected with the rolling core by two bearings; the ends of the left and the right transmission buckles are respectively installed with a press roll shaft and a press roll sleeve, the press roll shaft is fixed and connected with the transmission buckle, the press roll shaft is connected with the press roll sleeve by the bearing. The utility model uses the thread self lock characteristic and the left and right thread rotation characteristic to realize the purpose of rolling and pressing type blood pump clearance being adjustable exactly, the utility model is simple in structure, convenient in adjustment, overcoming the defects of the prior excessively complex blood pump structure, large noise, inconvenient adjustment, difficult maintenance and etc.
Description
Technical field
This utility model relates to a kind of blood pump that is used for extracorporeal circulation of blood, relates in particular to a kind of rotary blood pump of adjustable gaps, belongs to the medical auxiliary equipment technical field.
Background technology
In some special clinical surgery operation, blood need be extracted out external the circulation at present, as cardiopulmonary operation, dialysis operation.And blood pump is a critical component that carries out extracorporeal circulation of blood, is broadly divided into two classes according to its operation principle: i.e. centrifugal blood pump and roller pump.Centrifugal blood pump is because its cost is higher, and is many clinically at present based on roller pump.Roller pump is to adopt roller bearing extruding silicon plastic tube to come driving body outer sanguimotor, will cause bigger injury to blood if top clearance is improper, is the key technical indexes of this type of blood pump so guarantee gap precision.From present product both domestic and external, patent, the blood pump gap that has is a determined value, and this is not suitable for medical applications, because patient's situation is different; The blood pump that the excellent Si Tela medical apparatus and instruments of an other class such as Germany company limited, Guangdong Group Plc of Weida produce, though its gap is adjustable, but exist structure too complicated (mostly having adopted stored energy mechanisms such as spring), noise big, regulate shortcomings such as inconvenience, maintenance difficult, and the fault rate of pump is higher.
The utility model content
The purpose of this utility model provides a kind of adjustable clearance rotary blood pump, and is not only simple in structure, and can make the gap accurately adjustable.
This utility model is achieved by the following technical solution: a kind of adjustable clearance rotary blood pump, contain base and the core that rolls that is arranged in the base, it is characterized in that: rolling the adjustment axle that in-core is provided with a band adjusting knob, this adjustment axle two ends respectively by about revolve screw thread and cooperate with left and right sides transmission dop, this axle by two bearings with roll core and be connected; In the end of the described left and right sides transmission dop nip drum axle and nip drum cover are housed respectively, described nip drum axle is fixedlyed connected with the transmission dop, and the nip drum axle links to each other by bearing with the nip drum cover.
Feature of the present utility model also is: copper sheathing is housed rolling between core and the transmission dop, is sliding fit between this copper sheathing and the dop, and rolls between the core to closely cooperating.
This utility model compared with prior art, have the following advantages and progressive: this utility model utilize the screw thread latching characteristics and about revolve the screw thread rotation characteristic and realize accurately adjustable problem of roller pump gap, simple in structure, easy to adjust, overcome in the past that the blood pump structure is too complicated, noise is big, regulate defectives such as inconvenience and maintenance difficult.
Description of drawings
The cutaway view of the adjustable clearance rotary blood pump that Fig. 1 provides for this utility model.
Fig. 2 is the structural representation that rolls core.
Fig. 3 is the structural representation of the pressure pipe assembly of transmission dop, nip drum axle and nip drum cover composition.
Specific embodiments
Below in conjunction with accompanying drawing operation principle of the present utility model and concrete structure are further described.
Fig. 1 is a structural representation of the present utility model, and it mainly comprises rolls core 1 and base 2 two parts; Rolling the adjustment axle 8 that in-core is provided with a band adjusting knob 7, adjusting and to revolve screw thread about axle two ends are respectively, by about revolve screw thread and cooperate with Left Drive dop 9 and right transmission dop 5 respectively, and by two bearings with roll core 1 and be connected.Nip drum axle 4 and nip drum cover 3 is housed respectively in the end of described left and right sides transmission dop, and the nip drum axle is fixedlyed connected with the transmission dop, and the nip drum axle is connected by bearing with the nip drum cover.Nip drum cover 3, nip drum axle 4 and left and right sides transmission dop are formed two groups of pressure pipe assemblies respectively.So when work, nip drum cover 3 can rotate around nip drum axle 4.Revolving screw thread about adjustment axle 8 two ends matches with Left Drive dop 9 and right transmission dop 5 respectively; During adjusting, be arranged on the adjusting knob of adjusting on the axle 87, can make two pressure pipe assemblies, when arriving corresponding position, stop the rotation, regulate the purpose of rolling gap between core 1 and the base 2 thereby reach to two opposite direction motions by rotation.
At the transmission dop and roll copper sheathing 6 is housed between the core, copper sheathing 6 and to roll between the core 1 be tight fit and is a sliding fit between the transmission dop 5,9; Left and right sides transmission dop and the contact surface that rolls between the core are sliding fit in addition.
Silicon plastic tube 10 is arranged on and rolls between core 1 and the base 2 during work, be fixed on the adjusting knob 7 that rolls on the core by adjusting, with nip drum cover 3 silica gel tube 10 and base 2 are pressed to a certain degree, driven by motor is rolled core 1 and (is connected by key then, do not draw among the figure) rotate, because the principle of extruding sends blood in cycles.
This utility model utilizes screw thread self-locking and transmission principle to realize the blood pump of the extracorporeal circulation adjustable clearance of pumping blood.During the work of this blood pump, utilize shaft coupling to be connected, utilize motor to drive blood pump work with driving motor, link to each other with shaft coupling be blood pump roll core 1, rolling on the core 1 has key.Base 2 is by being threaded on the casing.Silicon plastic tube 10 is squeezed in the circumference between base 2 and the nip drum cover 3.Nip drum cover 3 is to form one by several little bearings and nip drum axle 4, is connected on the left and right sides transmission dop 9,5, and such two transmission dops, 5,9 motions just can drive the motion of nip drum cover 3.Because the self-locking property of screw thread, the gap can remain unchanged, up to regulate next time.Driven by motor is rolled 1 cycle of core extruding silica gel tube, adjusts top clearance as long as rotate adjustment knob 7, because the latching characteristics of screw thread does not need extra gripping mechanism.
Claims (3)
1. adjustable clearance rotary blood pump, contain base and the core that rolls that is arranged in the base, it is characterized in that: rolling the adjustment axle (8) that in-core is provided with a band adjusting knob (7), this adjustment axle two ends respectively by about revolve screw thread and cooperate with left and right sides transmission dop (9,5), and by two bearings with roll core and be connected; Nip drum axle (4) and nip drum cover (3) are housed respectively in the end of described left and right sides transmission dop, and described nip drum axle is fixedlyed connected with the transmission dop, and the nip drum axle is connected by bearing with the nip drum cover.
2. according to the described rotary blood pump of claim 1, it is characterized in that: copper sheathing being housed rolling between core and the transmission dop, is sliding fit between this copper sheathing and the transmission dop, and rolls and be tight fit between the core.
3. according to the described rotary blood pump of claim 1, it is characterized in that: described nip drum cover is integral by a plurality of little bearing group with the nip drum axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03209455 CN2649089Y (en) | 2003-09-12 | 2003-09-12 | Gap-adjustable rotary blood pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03209455 CN2649089Y (en) | 2003-09-12 | 2003-09-12 | Gap-adjustable rotary blood pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2649089Y true CN2649089Y (en) | 2004-10-20 |
Family
ID=34325155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03209455 Expired - Fee Related CN2649089Y (en) | 2003-09-12 | 2003-09-12 | Gap-adjustable rotary blood pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2649089Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101336343B (en) * | 2006-01-26 | 2010-05-19 | 株式会社Jms | Roller pump |
-
2003
- 2003-09-12 CN CN 03209455 patent/CN2649089Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101336343B (en) * | 2006-01-26 | 2010-05-19 | 株式会社Jms | Roller pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |