CN220878934U - Blood separating tube - Google Patents
Blood separating tube Download PDFInfo
- Publication number
- CN220878934U CN220878934U CN202322356599.XU CN202322356599U CN220878934U CN 220878934 U CN220878934 U CN 220878934U CN 202322356599 U CN202322356599 U CN 202322356599U CN 220878934 U CN220878934 U CN 220878934U
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- Prior art keywords
- lower chamber
- upper chamber
- tube
- chamber
- blood separation
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- 210000004369 blood Anatomy 0.000 title claims abstract description 47
- 239000008280 blood Substances 0.000 title claims abstract description 47
- 238000001125 extrusion Methods 0.000 claims abstract description 42
- 238000000926 separation method Methods 0.000 claims abstract description 26
- 238000012856 packing Methods 0.000 claims description 15
- 239000000945 filler Substances 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 2
- 210000003743 erythrocyte Anatomy 0.000 abstract description 14
- 210000002966 serum Anatomy 0.000 abstract description 11
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000005119 centrifugation Methods 0.000 description 10
- 230000017531 blood circulation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000002381 plasma Anatomy 0.000 description 2
- 210000004623 platelet-rich plasma Anatomy 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000003102 growth factor Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- 239000003634 thrombocyte concentrate Substances 0.000 description 1
Landscapes
- External Artificial Organs (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
The utility model relates to the technical field of blood separation, and provides a blood separation tube, which comprises a tube body and a filling piece, wherein an upper chamber and a lower chamber are formed in the tube body, the upper chamber and the lower chamber are arranged along a first direction, and the upper chamber is communicated with the lower chamber; the filling piece is arranged in the pipe body and positioned between the upper chamber and the lower chamber, so that an extrusion channel is formed between the upper chamber and the lower chamber; the projection area of the extrusion channel in the first direction is smaller than that of the upper chamber in the first direction; the projected area of the extrusion channel in the first direction is smaller than the projected area of the lower chamber in the first direction. According to the blood separating tube disclosed by the utility model, the PRP between the red blood cells and the serum flows to the extrusion channel by being extruded by the filling piece, so that the height of the PRP layer in the first direction is increased, and the blood separating tube is convenient for workers to extract through the extraction injection needle.
Description
Technical Field
The utility model relates to the technical field of blood separation, in particular to a blood separation tube.
Background
Platelet rich plasma, called Platelet-RICH PLASMA, PRP for short, is a Platelet concentrate obtained by centrifugation of autologous whole blood, and contains a large amount of growth factors and proteins in addition to various cells.
After the blood is centrifugally separated by adopting the separating tube, the blood is separated into serum, PRP and red blood cells, wherein the PRP is only a thin layer between the serum and the red blood cells, is difficult to completely suck, and is easy to suck the serum and the red blood cells in the sucking process, so that the purity of the PRP is influenced.
Disclosure of utility model
The utility model provides a blood separating tube, which is used for solving the defect that PRP is difficult to suck after blood separation in the prior art and is convenient for sucking PRP.
The present utility model provides a blood separation tube comprising:
A tube body, an upper chamber and a lower chamber are formed inside the tube body, the upper chamber and the lower chamber are arranged along a first direction, and the upper chamber is communicated with the lower chamber;
a packing member disposed inside the pipe body and between the upper chamber and the lower chamber such that an extrusion passage is formed between the upper chamber and the lower chamber; the projection area of the extrusion channel in the first direction is smaller than that of the upper chamber in the first direction; the projection area of the extrusion channel in the first direction is smaller than that of the lower chamber in the first direction.
According to the blood separation tube provided by the utility model, the filling piece is fixedly arranged on the inner wall of the tube body and protrudes out of the inner wall of the tube body.
According to the blood separating tube provided by the utility model, the filling member is provided with a first guide surface at one end close to the upper chamber,
And/or the number of the groups of groups,
The filler is provided with a second guide surface at one end near the lower chamber.
According to the blood separating tube provided by the utility model, the volume of the lower chamber accounts for 40% -55% of the volume of the tube body.
According to the blood separation tube provided by the utility model, the filling piece is a circular ring, and the extrusion channel is positioned at the center of the circular ring.
According to the blood separating tube provided by the utility model, the diameter of the extrusion channel is three to six millimeters.
According to the blood separating tube provided by the utility model, the squeezing channel forms a suction opening at one end close to the upper chamber, and the cross section of the suction opening gradually decreases from the upper chamber to the lower chamber.
According to the blood separation tube provided by the utility model, the filling member is fixed on the first wall of the tube body and extends towards the second wall of the tube body, and the first wall and the second wall are opposite to each other; the packing and the second wall form the extrusion channel therebetween.
The blood separating tube provided by the utility model further comprises a separating gel, wherein the separating gel is arranged in the tube body.
The utility model provides a blood separation tube, which further comprises a tube cover, wherein the tube cover is covered on the tube body; the pipe cover is provided with anti-skid patterns.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
The blood separation tube comprises a tube body and a filling piece, wherein an upper chamber and a lower chamber are formed in the tube body, the upper chamber and the lower chamber are arranged along a first direction, and the upper chamber is communicated with the lower chamber; the filling piece is arranged in the pipe body and positioned between the upper chamber and the lower chamber, so that an extrusion channel is formed between the upper chamber and the lower chamber; the projection area of the extrusion channel in the first direction is smaller than that of the upper chamber in the first direction; the projected area of the extrusion channel in the first direction is smaller than the projected area of the lower chamber in the first direction.
After centrifugation, the blood is layered in a blood separation tube, the lower chamber is used for containing red blood cells, and the upper chamber is used for containing serum; the PRP between the red blood cells and the serum flows to the extrusion channel by extrusion of the filling piece, and the projection area of the extrusion channel in the first direction is smaller than that of the upper chamber in the first direction.
Drawings
In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a blood separation tube according to an embodiment of the present utility model;
Fig. 2 is a schematic diagram of a structure of a blood separation tube after centrifugation according to an embodiment of the present utility model.
Reference numerals:
100. a tube body; 110. an upper chamber; 120. a lower chamber;
200. a filler; 210. a first guide surface; 220. a second guide surface;
300. a tube cover;
400. Extruding the channel;
500. Separating glue;
600. red blood cells;
700. a PRP layer;
800. serum.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The present embodiment provides a blood separation tube, as shown in fig. 1, comprising a tube body 100, a filling member 200 and a tube cover 300, wherein an upper chamber 110 and a lower chamber 120 are formed inside the tube body 100, the upper chamber 110 and the lower chamber 120 are arranged along a first direction, and the upper chamber 110 is communicated with the lower chamber 120; the packing 200 is disposed inside the tube body 100 between the upper chamber 110 and the lower chamber 120 such that a pressing passage 400 is formed between the upper chamber 110 and the lower chamber 120; the projected area of the pressing channel 400 in the first direction is smaller than the projected area of the upper chamber 110 in the first direction; the projected area of the pressing passage 400 in the first direction is smaller than the projected area of the lower chamber 120 in the first direction.
The embodiment of the utility model provides a blood separating tube which is used for collecting and separating blood; when separating, a proper amount of blood flows into the tube body 100, the tube cover 300 is covered, the blood separating tube is placed on an external centrifuge for centrifugation for ten minutes to finish the centrifugation, after centrifugation, the blood is layered in the blood separating tube, the lower chamber 120 is used for containing red blood cells, and the upper chamber 110 is used for containing serum; as shown in FIG. 2, when the PRP between the red blood cells and the serum flows to the extrusion channel 400 by the extrusion of the filling member 200, since the projection area of the extrusion channel 400 in the first direction is smaller than the projection area of the upper chamber 110 in the first direction, and at the same time, the projection area of the extrusion channel 400 in the first direction is smaller than the projection area of the lower chamber 120 in the first direction, the height of the PRP layer in the first direction is increased, which is convenient for the staff to draw.
Specifically, the pipe body 100 is a straight pipe, on which a pipe orifice is arranged, and the direction from the pipe orifice to the bottom of the pipe is a first direction; of course, in other embodiments, the tube 100 may have other shapes, and embodiments of the present utility model are not limited herein; the tube cover 300 includes a bottom plate and a side plate connected to an edge of the bottom plate, and an anti-slip pattern is provided at an outer side of the side plate to improve friction force in order to facilitate opening of the tube cover 300; the tube cover 300 is covered on the tube mouth so that a closed cavity is formed inside the tube body 100; typically, the tube 100 is made of transparent glass or plastic; the tube cover 300 is made of plastic material to improve the sealing performance of the tube cover 300.
In one embodiment, the filling member 200 is fixedly disposed on the inner wall of the pipe body 100 and protrudes from the inner wall of the pipe body 100, so as to extrude the PRP layer, so that the height of the extruded PRP layer in the first direction is increased, the extraction of workers is facilitated, and the defect that the height of the PRP layer in the prior art is too small and difficult to absorb is overcome.
Of course, in other embodiments, the filling member 200 may be suspended inside the tube body 100 and located between the upper chamber 110 and the lower chamber 120, the filling member 200 and the inner wall of the tube body 100 form an extrusion channel 400, the filling member 200 extrudes the PRP layer located between the red blood cells and the serum, and the PRP layer flows into the extrusion channel 400, so that the height of the PRP layer in the first direction is increased, which is convenient for the staff to extract; in order to realize that the packing 200 can be suspended inside the pipe body 100, the inside of the pipe cover 300 is provided with a connection column connected with the packing 200, the pipe cover 300 is covered, and the packing 200 can be suspended inside the pipe body 100 between the upper chamber 110 and the lower chamber 120; to avoid the connection post affecting the fluid level in the upper chamber 110, the connection post has a diameter of less than one millimeter.
In one embodiment, as shown in fig. 1, the packing member 200 is provided with a first guiding surface 210 at one end near the upper chamber 110, so as to avoid dead angles formed on the packing member 200 and influence the PRP layer to flow into the extrusion channel 400; generally, the first guide surface 210 is a curved surface to facilitate the flow of PRP from the upper chamber 110 along the first guide surface 210 into the extrusion channel 400 as the PRP layer is sucked.
In one embodiment, as shown in fig. 1, the filling member 200 is provided with a second guiding surface 220 at one end near the lower chamber 120, so as to avoid dead angles formed on the filling member 200 and influence the PRP layer to flow into the extrusion channel 400; generally, the second guide surface 220 is curved to facilitate the flow of PRP from the lower chamber 120 along the second guide surface 220 into the extrusion channel 400 during centrifugation.
In order that the lower chamber 120 just accommodates all red blood cells after centrifugation, the volume of the lower chamber 120 occupies 40% -55% of the volume of the tube body 100, and preferably, the volume of the lower chamber 120 occupies 40% of the volume of the tube body 100; a proper amount of blood flows into the tube body 100, after centrifugation, the lower chamber 120 just accommodates all red blood cells, and PRP positioned above the red blood cells enters the extrusion channel 400, so that the suction of workers is facilitated; in this embodiment, the tube body 100 is a straight tube, in other embodiments, the tube body 100 may be a curved tube or a special tube, and the specific position of the filling member 200 may be set according to the shape of the tube body 100, so that the volume of the lower chamber 120 occupies 40% -55% of the volume of the tube body 100.
In one embodiment, the filling member 200 is a circular ring, which is convenient to process, and the extrusion channel 400 is positioned at the center of the circular ring, so that a worker can conveniently insert an external aspirator into the extrusion channel 400 to aspirate PRP.
In one embodiment, generally, the volume of the blood separated at one time is ten milliliters, the volume of the tube body 100 is ten milliliters, and ten milliliter scale marks are arranged on the outer wall of the tube body 100, so that the volume of the blood is convenient to control; the inner diameter of the pipe body 100 is fifteen to nineteen millimeters, the diameter of the extrusion channel 400 is three to six millimeters, if the diameter of the extrusion channel 400 is too small, the pipe body 100 is too long, if the diameter of the extrusion channel 400 is too large, the height of the PRP layer in the first direction is too small, and the PRP layer is not easy to absorb; preferably, the diameter of the extrusion channel 400 is three millimeters.
In one embodiment, the extrusion channel 400 forms a suction port near one end of the upper chamber 110, and the cross section of the suction port is gradually reduced from the upper chamber 110 to the lower chamber 120, so that the suction port is funnel-shaped, thereby facilitating the operation of the staff member.
In one embodiment, the filling member 200 is fixed to a first wall of the pipe body 100 and extends toward a second wall of the pipe body 100, and the first wall and the second wall are both arc-shaped, and the first wall and the second wall are opposite to each other; the packing 200 and the second wall form the pressing channel 400 therebetween; of course, the packing 200 may be provided on the first wall and the second wall, respectively, the packing 200 located on the first wall may extend toward the second wall, the packing 200 located on the second wall may extend toward the first wall, and the extrusion channel 400 may be formed between the packing 200 and the inner wall of the tube body 100; the filler element 200 is made of glass or plastic, and in other embodiments, the filler element 200 may be hollow to reduce its weight.
In one embodiment, the device further comprises a release gel, wherein the release gel is disposed inside the tube body 100, is a high molecular polymer formed by polymerization of organic molecules, uses acrylic acid as a main polymerization monomer, and comprises a thixotropic agent.
Initially, ten milliliters of blood is added into the tube 100, the tube cover 300 is covered, after centrifugation for ten minutes, red blood cells are located in the lower chamber 120, serum is located in the upper chamber 110, platelet poor plasma and PRP are located in the extrusion channel 400, and after two to three milliliters of platelet poor plasma are sucked, PRP is sucked out again, so that two milliliters of PRP is obtained.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. A blood separation tube, comprising:
A tube body, an upper chamber and a lower chamber are formed inside the tube body, the upper chamber and the lower chamber are arranged along a first direction, and the upper chamber is communicated with the lower chamber;
a packing member disposed inside the pipe body and between the upper chamber and the lower chamber such that an extrusion passage is formed between the upper chamber and the lower chamber; the projection area of the extrusion channel in the first direction is smaller than that of the upper chamber in the first direction; the projection area of the extrusion channel in the first direction is smaller than that of the lower chamber in the first direction.
2. The blood separation tube according to claim 1 wherein the filler is fixedly disposed on and protrudes from the inner wall of the tube.
3. A blood separation tube according to claim 1 wherein the filler member is provided with a first guide surface at an end adjacent to the upper chamber,
And/or the number of the groups of groups,
The filler is provided with a second guide surface at one end near the lower chamber.
4. The blood separation tube according to claim 1 wherein the volume of the lower chamber is 40% to 55% of the volume of the tube body.
5. The blood separation tube according to any one of claims 1 to 4 wherein the filler member is a circular ring and the extrusion channel is located at the center of the circular ring.
6. The blood separation tube according to any one of claims 1 to 4 wherein the diameter of the extrusion channel is three to six millimeters.
7. The blood separation tube according to any one of claims 1 to 4 wherein the squeeze channel forms a suction port at an end adjacent to the upper chamber, the suction port having a cross section that gradually decreases in a direction from the upper chamber to the lower chamber.
8. The blood separation tube according to any one of claims 1 to 4 wherein the filler member is secured to a first wall of the tube body and extends toward a second wall of the tube body, the first and second walls being opposite each other; the packing and the second wall form the extrusion channel therebetween.
9. The blood separation tube according to any one of claims 1 to 4 further comprising a separation gel disposed within the tube body.
10. The blood separation tube according to any one of claims 1 to 4 further comprising a tube cap that fits over the tube body; the pipe cover is provided with anti-skid patterns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322356599.XU CN220878934U (en) | 2023-08-31 | 2023-08-31 | Blood separating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322356599.XU CN220878934U (en) | 2023-08-31 | 2023-08-31 | Blood separating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220878934U true CN220878934U (en) | 2024-05-03 |
Family
ID=90874478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322356599.XU Active CN220878934U (en) | 2023-08-31 | 2023-08-31 | Blood separating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220878934U (en) |
-
2023
- 2023-08-31 CN CN202322356599.XU patent/CN220878934U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |