CN214440043U - Blood centrifugal transfer tube - Google Patents
Blood centrifugal transfer tube Download PDFInfo
- Publication number
- CN214440043U CN214440043U CN202120333717.3U CN202120333717U CN214440043U CN 214440043 U CN214440043 U CN 214440043U CN 202120333717 U CN202120333717 U CN 202120333717U CN 214440043 U CN214440043 U CN 214440043U
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- CN
- China
- Prior art keywords
- cover body
- barrel
- blood
- cylinder
- matched
- 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 24
- 210000004369 blood Anatomy 0.000 title claims abstract description 24
- 239000012503 blood component Substances 0.000 claims abstract description 10
- 238000005119 centrifugation Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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- Centrifugal Separators (AREA)
Abstract
The utility model discloses a blood centrifugal transfer tube, which comprises a tube body with a closed end and a cover body for sealing the opening of the tube body; the outer diameter of the cylinder body is matched with a groove on a turntable of the blood component separator; the bottom of the barrel is provided with a telescopic positioning column, and the opening of the barrel is provided with two grooves for accommodating flange edges of the syringe; a telescopic ejector rod is arranged in the cover body; and the cover body and the barrel body are matched by threads, so that when the cover body is buckled with the barrel body, the flange edge of the injector can be tightly pressed in the groove by the cover body. The utility model is used for the disposable syringe that the switching is current makes it need not to shift the blood sample to the centrifuging tube in and direct and the separation of blood composition separating centrifuge cooperation work completion blood composition, has avoided blood because of the pollution that multiple transfer caused.
Description
Technical Field
The utility model relates to a switching pipe for blood composition separating centrifuge.
Background
The blood component separator is a device for separating, removing and collecting blood components by the principle of gravity centrifugation. When the centrifuge tube is used, firstly, a disposable syringe is used for drawing a blood sample from a patient, then the blood sample is transferred to a special centrifuge tube, and then the centrifuge tube is placed into a blood component separator for separation.
In order to reduce the cost, the centrifugal tubes are repeatedly used, so that the possibility of blood sample contamination is increased virtually.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a blood centrifugation adapter tube can carry out the switching to general disposable syringe, makes it directly apply to the blood composition separating centrifuge, avoids the blood specimen to shift the pollution that causes many times.
In order to solve the technical problems, the technical proposal of the utility model is to adopt a blood centrifugal transfer tube, which comprises a cylinder body with one closed end and a cover body for closing the opening of the cylinder body; the outer diameter of the cylinder body is matched with a groove on a turntable of the blood component separator; the bottom of the barrel is provided with a telescopic positioning column, and the opening of the barrel is provided with two grooves for accommodating flange edges of the syringe; a telescopic ejector rod is arranged in the cover body; and the cover body and the barrel body are matched by threads, so that when the cover body is buckled with the barrel body, the flange edge of the injector can be tightly pressed in the groove by the cover body. The utility model discloses a principle lies in fixing a position the syringe front end through the reference column, then utilizes the lid to compress tightly the flange limit of syringe in the recess on the barrel to the realization is to the location of syringe. In addition, in order to avoid the overlong sleeve, the piston rod of the syringe needs to be broken off firstly when the syringe is used (actually, a notch which is convenient for breaking the piston rod of the disposable syringe is reserved on the piston rod of the syringe), and then the ejector rod on the cover body is used for propping against the piston so as to prevent the piston from being thrown out of the syringe during centrifugation.
As an improvement, the front end of the positioning column is provided with a tapered hole which is wide at the outside and narrow at the inside. The opening at the front end of the injector can be sealed by the plug before centrifugal separation, and the plug can be well positioned by the conical hole.
As a further improvement, the device also comprises a positioning cylinder fixed at the bottom of the cylinder body, wherein the positioning column is inserted in the positioning cylinder and can move back and forth along the positioning cylinder; a spring is arranged in the positioning cylinder and behind the positioning column. The telescopic positioning column can be adapted to syringes of various specifications.
As another further improvement, a spring is arranged behind the ejector rod and is installed in a spring seat in the cover body. Because the height of the piston can be changed due to the fact that the blood sample in the syringe is not constant, the telescopic ejector rod can be matched with the pistons with different heights.
As an improvement, the outer wall of the cylinder body is provided with external threads, and the inner wall of the cover body is provided with internal threads matched with the external threads on the cylinder body. After the flange of the syringe is placed in the groove, a part of the flange penetrates out of the cylinder body, and the cover body acts on the part to press the part tightly.
The utility model discloses an useful part lies in:
1. the disposable syringe is used for transferring the existing disposable syringe, so that blood samples are not required to be transferred into a centrifuge tube and are directly matched with a blood component separator to complete the separation of blood components, and the pollution of blood caused by multiple transfers is avoided.
2. The recess and the lid cooperation on accessible reference column and the barrel carry out three point location to the syringe, can be very firm fix the syringe in the barrel.
3. The piston is jacked in the injector through the jacking rod, so that the phenomenon that the piston is thrown out of the injector during centrifugation to cause centrifugation failure is avoided.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an external structural view of the cylinder.
The labels in the figure are: the device comprises a barrel body 1, a cover body 2, a positioning column 3, a spring 4, a positioning barrel 5, a push rod 6, a spring 7, a spring seat 8, an injector 9, a piston 10, a flange 11, a plug 12 and a groove 13.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the specific embodiments.
As shown in fig. 1 and 2, the present invention comprises a cylinder 1 with a closed end and a cover 2 for closing the opening of the cylinder 1; the outer diameter of the cylinder body 1 is matched with a groove on a turntable of the blood component separator; the telescopic positioning column 3 is arranged at the bottom of the barrel 1, and a tapered hole with a wide outer part and a narrow inner part is formed in the front end of the positioning column 3. Two grooves 13 for accommodating flange edges 11 of the syringe 9 are formed in the opening of the barrel 1; a telescopic ejector rod 6 is arranged in the cover body 2; and the cover body 2 and the barrel body 1 are matched by screw threads, so that when the cover body 2 is buckled with the barrel body 1, the cover body 2 can press the flange edge 11 of the syringe 9 in the groove 13. Preferably, the outer wall of the cylinder 1 is provided with an external thread, and the inner wall of the cover body 2 is provided with an internal thread matched with the external thread on the cylinder 1.
Specifically, the bottom of the cylinder body 1 is fixed with a positioning cylinder 5, and the positioning column 3 is inserted into the positioning cylinder 5 and can move back and forth along the positioning cylinder 5; and a spring 4 is arranged in the positioning cylinder 5 and behind the positioning column 3. Similarly, a spring 7 is arranged behind the ejector rod 6, and the spring 7 is arranged in a spring seat 8 in the cover body 2.
When in use, the front end opening of the syringe 9 which has taken out the blood sample is sealed by a plug 12, and then the piston rod is broken off. Then, one end of the syringe 9, which is provided with the plug 12, extends into the bottom of the barrel 1 and abuts against the positioning column 3, and meanwhile, the flange 11 of the syringe 9 is placed in the groove 13 at the opening of the barrel 1. The cover body 2 is buckled at the opening of the cylinder body 1, the flange edge 11 is tightly pressed at the bottom of the groove 13 by rotating the cover body 2, and the ejector rod 6 in the cover body 2 abuts against the piston 10 to prevent the centrifugal cover from being thrown off during centrifugation. And finally, directly inserting the cylinder body 1 into a groove on a turntable of the blood component separator.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.
Claims (5)
1. A blood centrifugation adapter tube comprises a cylinder body with one closed end and a cover body for closing an opening of the cylinder body; the outer diameter of the cylinder body is matched with a groove on a turntable of the blood component separator; the method is characterized in that: the bottom of the barrel is provided with a telescopic positioning column, and the opening of the barrel is provided with two grooves for accommodating flange edges of the syringe; a telescopic ejector rod is arranged in the cover body; and the cover body and the barrel body are matched by threads, so that when the cover body is buckled with the barrel body, the flange edge of the injector can be tightly pressed in the groove by the cover body.
2. The blood centrifugation adapter tube of claim 1, wherein: the front end of the positioning column is provided with a tapered hole with a wide outside and a narrow inside.
3. The blood centrifugation adapter tube of claim 1, wherein: the positioning column is inserted into the positioning cylinder and can move back and forth along the positioning cylinder; a spring is arranged in the positioning cylinder and behind the positioning column.
4. The blood centrifugation adapter tube of claim 1, wherein: a spring is arranged behind the ejector rod and is installed in a spring seat in the cover body.
5. The blood centrifugation adapter tube of claim 1, wherein: the outer wall of the barrel is provided with external threads, and the inner wall of the cover body is provided with internal threads matched with the external threads on the barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120333717.3U CN214440043U (en) | 2021-02-05 | 2021-02-05 | Blood centrifugal transfer tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120333717.3U CN214440043U (en) | 2021-02-05 | 2021-02-05 | Blood centrifugal transfer tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214440043U true CN214440043U (en) | 2021-10-22 |
Family
ID=78137497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120333717.3U Expired - Fee Related CN214440043U (en) | 2021-02-05 | 2021-02-05 | Blood centrifugal transfer tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214440043U (en) |
-
2021
- 2021-02-05 CN CN202120333717.3U patent/CN214440043U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211022 |