CN108246521B - Centrifugal cup bin of red blood cell washing machine - Google Patents
Centrifugal cup bin of red blood cell washing machine Download PDFInfo
- Publication number
- CN108246521B CN108246521B CN201711275055.3A CN201711275055A CN108246521B CN 108246521 B CN108246521 B CN 108246521B CN 201711275055 A CN201711275055 A CN 201711275055A CN 108246521 B CN108246521 B CN 108246521B
- Authority
- CN
- China
- Prior art keywords
- hole
- lock pin
- upper cover
- fixing
- rotary upright
- 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.)
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Links
- 210000003743 erythrocyte Anatomy 0.000 title claims abstract description 25
- 238000005406 washing Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 210000001772 blood platelet Anatomy 0.000 description 2
- 210000000265 leukocyte Anatomy 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 208000007502 anemia Diseases 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 210000002381 plasma Anatomy 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
- B04B7/02—Casings; Lids
- B04B7/06—Safety devices ; Regulating
Landscapes
- Centrifugal Separators (AREA)
Abstract
The invention provides a centrifugal cup bin of a red blood cell washing machine, which comprises an upper cover, a locking device and a bin body, and is characterized in that: the upper end of the bin body is provided with a barrel flange, the upper side of one end of the upper cover is vertically provided with a switch handle, the lower side of one end of the upper cover is provided with a positioning block, the bottom of the positioning block is provided with a groove, the locking device comprises a fixing component and a locking pin component, the barrel flange is provided with a hole matched with the groove, the fixing component comprises a limit column, a fixing plate and a positioning step, the locking pin component comprises a rotary upright column, the upper end of the rotary upright column is vertically provided with a handle button, the middle part of the rotary upright column is vertically provided with a locking pin seat, the upper sides of the two ends of the locking pin seat are respectively vertically provided with a locking pin, the upper end of the locking pin penetrates through the locking pin hole and the hole on the barrel flange and then enters the groove. The invention has the advantages that the closing and locking processes of the upper cover are strictly executed, the door is closed firstly and then locked, the false door opening caused by the action of external force can be prevented, the structure is compact and ingenious, and the operation is simple.
Description
Technical Field
The invention belongs to the field of medical appliances, and particularly relates to a centrifugal cup bin of a red blood cell washing machine.
Background
Washing red blood cells (Washed red blood cells, WRBC) is a surgical component transfusion. Is healthy blood that removes all plasma and 90% white blood cells and platelets. Clinically, the medicine is used for anemic patients which generate leucocyte antibodies due to multiple blood transfusion and patients after organ transplantation, and rejection reaction is reduced.
The red blood cell washing machine is mainly used for removing a small amount of plasma, white blood cells, platelets and fragments thereof contained in concentrated red blood cells. The method comprises the steps of connecting a concentrated erythrocyte bag with a washing consumable material by using a sterile tube machine to construct a closed condition, pumping erythrocytes into a centrifugal cup by using a blood pump, driving the centrifugal cup to rotate by using a centrifugal machine, centrifugally separating components with different specific gravities, and pumping washing liquid into the erythrocytes by using a solution pump to wash the erythrocytes, so that the washed erythrocytes are obtained.
Because the centrifugal cup in the centrifugal cup bin rotates at a high speed, the upper cover of the centrifugal cup bin needs to be buckled and locked after the centrifugal cup is put into the centrifugal cup bin.
Application number: 201020300519.9 discloses a centrifuge cover locking mechanism which has the characteristic of being convenient to operate. The centrifugal cover locking mechanism comprises a centrifugal shell and at least two observation plates arranged on the upper surface of the centrifugal shell, wherein grooves are formed in each observation plate, a pressing column is movably sleeved in the centrifugal shell, and fixed guide columns acting on the pressing column are matched in the grooves. The force is applied to the pressing column to enable the pressing column to move up and down, so that the fixed guide column is driven to move up and down to enter or leave the groove on the observation plate, and the purpose of locking or separating the observation plate is achieved. In the process, the up-and-down movement of the pressing column can be realized by manually pressing the pressing column or pulling the pressing column, so that the damage or inconvenience in operation caused by adopting threads is avoided, the reliability of operation is improved, and the locking mechanism is particularly suitable for popularization and application in a locking mechanism of a centrifuge cover.
Disclosure of Invention
The invention aims to provide a centrifugal cup bin of a red blood cell washing machine, which has a simple structure and strictly executes the closing and locking processes of a door.
The technical scheme of the invention is as follows:
the centrifugal cup bin of the red blood cell washing machine comprises an upper cover, a locking device and a bin body, wherein the bin body is cylindrical with a bottom surface, the upper end of the bin body is provided with a barrel flange, two upper cover rotating shafts are vertically arranged on the barrel flange, semicircular upper covers capable of horizontally rotating are respectively arranged on the upper cover rotating shafts, a switch handle is vertically arranged on the upper side of one end of the upper cover, a positioning block is arranged on the lower side of one end of the upper cover, a groove is arranged at the bottom of the positioning block, a hole matched with the groove is arranged on the barrel flange, the locking device comprises a fixing component and a locking pin component, the fixing component comprises a limiting column, a fixing plate and a positioning step, the limiting column and the bin body are arranged on the side wall of the bin body in parallel, the fixing plate and the positioning step are respectively vertically arranged at the upper end and the lower end of the limiting column, a rotary column hole is arranged in the middle of the fixing plate, the both ends of fixed plate are equipped with the lock pinhole respectively, one side in rotatory stand hole is equipped with the rectangle stopper hole location step that links to each other with rotatory stand hole middle part is equipped with rotatory stand hole, the lockpin subassembly includes rotatory stand, the upper end of rotatory stand is equipped with handle button perpendicularly, the middle part of rotatory stand is equipped with the lock round pin seat perpendicularly, the both ends upside of lock round pin seat is equipped with the lockpin perpendicularly respectively, be equipped with the spring on the rotatory stand, the upper end of spring contacts with the lockpin seat, the lower extreme of spring contacts with the location step, be equipped with rectangular stopper on the lateral wall of rotatory stand above the lock round pin seat, distance between stopper and the lockpin seat is greater than or equal to the thickness of fixed plate, enter into in the recess after the lockpin upper end passes the hole on lock round pin hole, the barrel flange.
When the handle is used, the handle button is rotated, the limiting block is aligned to the limiting block hole, the handle button is rotated after the limiting block passes through the limiting block hole under the action of the spring, and the limiting block is clamped above the fixed plate and is locked by the upper cover. When the handle is opened, the handle button is rotated, the limiting block is aligned with the limiting block hole, the handle button is pressed, the limiting block is pressed below the fixed plate, and the upper cover is opened.
The edge of stopper hole is equipped with the baffle perpendicularly, and the baffle is on a parallel with the line of two lock pinholes, still is equipped with hall switch fixing base on the fixed plate, and hall switch fixing base parallels with the baffle, is equipped with on the hall switch fixing base with stopper matched with hall switch.
The Hall switch can sense whether the limiting block is close to the Hall switch, so that whether the upper cover is in a locking state or an opening state is judged.
The rear side of hall switch fixing base is connected with the storehouse body lateral wall, and hall switch sets up the front side at the hall switch fixing base, and the baffle sets up the front side edge in stopper hole.
Two opposite side walls of the positioning block are inclined planes facing the cylinder flange respectively.
The positioning block is fixed on the lower side of one end of the upper cover through a fixing bolt, and the axis of the fixing bolt is identical to that of the lock pin.
The upper end face of the lock pin is an inclined face opposite to the inclined face of the side wall of the positioning block.
The lock pin and the inclined surface of the positioning block enable the lock pin to easily slide into the groove at the bottom of the inclined surface, and locking is completed.
The invention has the advantages and positive effects that: by adopting the technical scheme, the closing and locking processes of the door are strictly executed. The upper cover is closed and then locked; the Hall switch can provide a locking detection signal, and the lock can not be opened all the time as long as the handle button is not touched after the upper cover is closed, and the Hall switch prompts that the upper cover is in an unlocking state; under the condition of locking the upper cover, the upper cover needs to be opened by unlocking and opening the upper cover, and the force directions of the two actions are different, so that the error opening of the upper cover caused by the action of external force is overcome, which is equivalent to double insurance; compact and ingenious structure and simple operation.
Drawings
FIG. 1 is a schematic diagram of the centrifugal cup bin structure of the red blood cell washing machine of the invention
FIG. 2 is a schematic structural view of a centrifugal cup bin locking device of a red blood cell washing machine according to the present invention
FIG. 3 is a schematic structural view of a centrifugal cup holder fixing assembly of a red blood cell washing machine according to the present invention
FIG. 4 is a schematic diagram of the structure of the lock pin assembly of the centrifugal cup bin of the red blood cell washing machine of the invention
FIG. 5 is a erythrocyte wash of the present invention Upper cover structure schematic diagram of centrifugal cup bin of machine
FIG. 6 is a side view of the top cover of the centrifugal cup bin of the red blood cell washing machine of the invention
In the figure:
1. bin body 2, upper cover 3, lock pin assembly 11 and cylinder flange
12. Spacing post 13, fixed plate 14, location step 131, baffle
132. Hall switch seat 133, lock pin hole 134, rotary upright hole 135, and Hall switch
136. Limiting block hole 21, switch handle 22, positioning block 23 and upper cover rotating shaft
221. Groove 223, fixing bolt 31, lock pin seat 32, spring
33. Rotating column 34, lock pin 331, stopper 332, handle button
Detailed Description
As shown in figures 1 and 2, the centrifugal cup bin of the red blood cell washing machine comprises an upper cover 2, a locking device and a bin body 1, wherein the bin body 1 is cylindrical with a bottom surface, a cylinder flange 11 is arranged at the upper end of the bin body 1, and two upper cover rotating shafts 23 are vertically arranged on the cylinder flange 11. As shown in fig. 5 and 6, the upper cover rotating shaft 23 is respectively provided with a semicircular upper cover 2 capable of rotating horizontally, the upper side of one end of the upper cover 2 is vertically provided with a switch handle 21, the lower side of one end of the upper cover 2 is provided with a positioning block 22, the bottom of the positioning block 22 is provided with a groove 221, the barrel flange 11 is provided with a hole matched with the groove 221, and the locking device comprises a fixing component and a locking pin component 3. As shown in fig. 3, the fixing component comprises a limiting column 12, a fixing plate 13 and a positioning step 14, the limiting column 12 and the axis of the bin body 1 are arranged on the side wall of the bin body 1 in parallel, the fixing plate 13 and the positioning step 14 are respectively and vertically arranged at the upper end and the lower end of the limiting column 12, a rotary upright column hole 134 is arranged in the middle of the fixing plate 13, locking pin holes 133 are respectively arranged at two ends of the fixing plate 13, a rectangular limiting block hole 136 connected with the rotary upright column hole 134 is arranged on one side of the rotary upright column hole 134, and a rotary upright column hole is arranged in the middle of the positioning step 14. As shown in fig. 4, the lock pin assembly 3 includes a rotating upright 33, a handle button 332 is vertically disposed at the upper end of the rotating upright 33, a lock pin seat 31 is vertically disposed in the middle of the rotating upright 33, lock pins 34 are vertically disposed at the upper sides of two ends of the lock pin seat 31, a spring 32 is disposed on the rotating upright 33, the upper end of the spring 32 contacts with the lock pin seat 31, the lower end of the spring 32 contacts with the positioning step 14, a rectangular limiting block 331 is disposed on the side wall of the rotating upright 33 above the lock pin seat 31, the distance between the limiting block 331 and the lock pin seat 31 is greater than or equal to the thickness of the fixed plate 13, and the upper ends of the lock pins 34 pass through the lock pin holes 133 and the holes on the barrel flange 11 and then enter the groove 221.
In order to prevent excessive rotation, the limiting block 331 is not easy to align with the limiting block hole 136, a baffle 131 can be vertically arranged at the edge of the limiting block hole 136, the baffle 131 is parallel to the connecting line of the two locking pin holes 133, the fixed plate 13 is also provided with a Hall switch fixing seat 132, the Hall switch fixing seat 132 is parallel to the baffle 131, and the Hall switch fixing seat 132 is provided with a Hall switch 135 matched with the limiting block 331. The hall switch 135 can monitor whether the state of the stopper 331 is located above the fixed plate 13, thereby judging whether the upper cover 2 is in a locked state.
Further, the rear side of the hall switch fixing seat 132 is connected with the side wall of the bin body 1, the hall switch 135 is disposed at the front side of the hall switch fixing seat 132, and the baffle 131 is disposed at the front edge of the stopper hole 136.
This further simplifies the locking and unlocking operations, which requires only a small angle of rotation of the handle button 332 after the stop 331 has been sprung over the fixed plate 13. When the rotary handle 332 is opened, the rotary handle 332 is pressed downwards when the rotary handle is not rotated, and then the rotary handle is rotated by a small angle, so that the limiting block 331 can be fixed below the fixed plate 13, and the opening operation is completed.
The two opposite side walls of the positioning block 22 are inclined surfaces facing the cylinder flange 11 respectively.
The positioning block 22 is fixed to the lower side of one end of the upper cover 2 by a fixing bolt 223, and the axis of the fixing bolt 223 is the same as the axis of the lock pin 34.
This is convenient, and a coaxial hole with internal thread is formed in the groove 221, and a hole with internal thread is also formed in the upper cover 2, so that the positioning block 22 can be fixed on the lower side of the upper cover 2 after the fixing bolt 223 is screwed.
The upper end face of the lock pin 34 is an inclined face opposite to the inclined face of the side wall of the positioning block 22. The provision of the detent 24 and the angled surface of the locating block 22 allows the detent 34 to slide easily into the recess 221 in the bottom of the angled surface to complete the locking.
The working procedure of this example: when in use, the handle button 332 is rotated to align the limiting block 331 with the limiting block hole 136, the limiting block 331 passes through the limiting block hole 136 and then rotates the handle button 332 under the action of the spring 32, and the limiting block 331 is clamped above the fixed plate 13 and the upper cover 2 is locked. When the cover is opened, the handle button 332 is turned, the limiting block 331 is aligned to the limiting block hole 136, the handle button 332 is pressed, the limiting block 331 is pressed below the fixing plate 13, and the upper cover 2 is opened.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (3)
1. The centrifugal cup bin of the red blood cell washing machine comprises an upper cover, a locking device and a bin body, and is characterized in that: the bin body is cylindrical with a bottom surface, the upper end of the bin body is provided with a cylinder flange, two upper cover rotating shafts are vertically arranged on the cylinder flange, semicircular upper covers capable of horizontally rotating are respectively arranged on the upper cover rotating shafts, a switch handle is vertically arranged at the upper side of one end of each upper cover, a positioning block is arranged at the lower side of one end of each upper cover, a groove is arranged at the bottom of each positioning block, a hole matched with the groove is arranged on the cylinder flange, the locking device comprises a fixing assembly and a locking pin assembly, the fixing assembly comprises a limit post, a fixing plate and a positioning step, the limit post is arranged on the side wall of the bin body in parallel with the axis of the bin body, the fixing plate and the positioning step are respectively vertically arranged at the upper end and the lower end of the limit post, a rotary upright post hole is arranged in the middle of the fixing plate, locking pin holes are respectively arranged at two ends of the fixing plate, one side of each rotary upright post hole is provided with a rectangular limit block hole connected with the rotary upright post hole, the middle part of the positioning step is provided with a rotary upright post hole, the lock pin assembly comprises a rotary upright post, the upper end of the rotary upright post is vertically provided with a handle button, the middle part of the rotary upright post is vertically provided with a lock pin seat, the upper sides of the two ends of the lock pin seat are respectively vertically provided with a lock pin, the rotary upright post is provided with a spring, the upper end of the spring is contacted with the lock pin seat, the lower end of the spring is contacted with the positioning step, the side wall of the rotary upright post above the lock pin seat is provided with a rectangular limiting block, the distance between the limiting block and the lock pin seat is greater than or equal to the thickness of a fixed plate, the upper end of the lock pin passes through the lock pin hole and a hole on a cylinder flange and then enters a groove, the edge of the limiting block hole is vertically provided with a baffle, the baffle is parallel to the connecting line of the two lock pin holes, the fixed plate is also provided with a Hall switch fixing seat, the Hall switch fixing seat is parallel to the baffle, the Hall switch is provided with a Hall switch matched with the limiting block, the rear side of hall switch fixing base is connected with the storehouse body lateral wall, and hall switch sets up the front side at the hall switch fixing base, and the baffle setting is at the front side edge in stopper hole, two lateral walls that the locating piece is relative are the inclined plane towards barrel flange respectively.
2. The red blood cell washing machine centrifugal cup holder according to claim 1, wherein: the positioning block is fixed on the lower side of one end of the upper cover through a fixing bolt, and the axis of the fixing bolt is identical to that of the lock pin.
3. The red blood cell washing machine centrifugal cup holder according to claim 2, wherein: the upper end face of the lock pin is an inclined face opposite to the inclined face of the side wall of the positioning block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711275055.3A CN108246521B (en) | 2017-12-06 | 2017-12-06 | Centrifugal cup bin of red blood cell washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711275055.3A CN108246521B (en) | 2017-12-06 | 2017-12-06 | Centrifugal cup bin of red blood cell washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108246521A CN108246521A (en) | 2018-07-06 |
| CN108246521B true CN108246521B (en) | 2024-04-16 |
Family
ID=62722361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711275055.3A Active CN108246521B (en) | 2017-12-06 | 2017-12-06 | Centrifugal cup bin of red blood cell washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108246521B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB501561A (en) * | 1938-01-20 | 1939-03-01 | Ind Waste Eliminators Ltd | Improvements in or relating to lid-locking devices for centrifugal machines |
| GB2017859A (en) * | 1978-02-28 | 1979-10-10 | Rydborn S | Safety locking device for lid of a centrifuge |
| US5104372A (en) * | 1989-07-31 | 1992-04-14 | Dideco S.P.A. | Device for closing the containment well of a blood centrifugation cell in a centrifugal machine |
| US5855773A (en) * | 1996-01-31 | 1999-01-05 | Medtronic Electromedics, Inc. | Centrifuge bowl housing and latch for blood separation apparatus |
| CN201225051Y (en) * | 2008-06-24 | 2009-04-22 | 上海达华医疗器械有限公司 | Door cap locking apparatus of pulp extracting centrifuge |
| JP2009291691A (en) * | 2008-06-03 | 2009-12-17 | Hitachi Koki Co Ltd | Centrifugal separator and rotor for centrifugal separator |
| CN201692882U (en) * | 2010-01-12 | 2011-01-05 | 成都市佳颖医用制品有限公司 | Centrifuge cover locking mechanism |
| CN103806773A (en) * | 2014-02-28 | 2014-05-21 | 四川南格尔生物科技有限公司 | Push type cover switch locking device |
| CN106780916A (en) * | 2017-01-10 | 2017-05-31 | 江南大学 | The RFID that logistic turnover box mechanical lock tapered end rotates detection records lock |
| EP3186009A1 (en) * | 2014-08-29 | 2017-07-05 | Andreas Hettich GmbH&Co. KG | Quick closure for a centrifuge |
-
2017
- 2017-12-06 CN CN201711275055.3A patent/CN108246521B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB501561A (en) * | 1938-01-20 | 1939-03-01 | Ind Waste Eliminators Ltd | Improvements in or relating to lid-locking devices for centrifugal machines |
| GB2017859A (en) * | 1978-02-28 | 1979-10-10 | Rydborn S | Safety locking device for lid of a centrifuge |
| US5104372A (en) * | 1989-07-31 | 1992-04-14 | Dideco S.P.A. | Device for closing the containment well of a blood centrifugation cell in a centrifugal machine |
| US5855773A (en) * | 1996-01-31 | 1999-01-05 | Medtronic Electromedics, Inc. | Centrifuge bowl housing and latch for blood separation apparatus |
| JP2009291691A (en) * | 2008-06-03 | 2009-12-17 | Hitachi Koki Co Ltd | Centrifugal separator and rotor for centrifugal separator |
| CN201225051Y (en) * | 2008-06-24 | 2009-04-22 | 上海达华医疗器械有限公司 | Door cap locking apparatus of pulp extracting centrifuge |
| CN201692882U (en) * | 2010-01-12 | 2011-01-05 | 成都市佳颖医用制品有限公司 | Centrifuge cover locking mechanism |
| CN103806773A (en) * | 2014-02-28 | 2014-05-21 | 四川南格尔生物科技有限公司 | Push type cover switch locking device |
| EP3186009A1 (en) * | 2014-08-29 | 2017-07-05 | Andreas Hettich GmbH&Co. KG | Quick closure for a centrifuge |
| CN106780916A (en) * | 2017-01-10 | 2017-05-31 | 江南大学 | The RFID that logistic turnover box mechanical lock tapered end rotates detection records lock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108246521A (en) | 2018-07-06 |
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