CN215227694U - Piston hemostix - Google Patents
Piston hemostix Download PDFInfo
- Publication number
- CN215227694U CN215227694U CN202120279594.XU CN202120279594U CN215227694U CN 215227694 U CN215227694 U CN 215227694U CN 202120279594 U CN202120279594 U CN 202120279594U CN 215227694 U CN215227694 U CN 215227694U
- Authority
- CN
- China
- Prior art keywords
- hemostix
- hemostix body
- annular
- rubber plug
- piston
- 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
- 230000000903 blocking effect Effects 0.000 claims abstract description 13
- 230000004888 barrier function Effects 0.000 claims 3
- 210000004369 blood Anatomy 0.000 abstract description 9
- 239000008280 blood Substances 0.000 abstract description 9
- 238000010241 blood sampling Methods 0.000 abstract description 9
- 238000007789 sealing Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000005119 centrifugation Methods 0.000 description 4
- 238000000703 high-speed centrifugation Methods 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 3
- 210000003743 erythrocyte Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model discloses a piston hemostix, which comprises a hemostix body, wherein a first end of the hemostix body is provided with a first rubber plug capable of being penetrated by a needle, a second rubber plug is also arranged in the hemostix body, and when the inside of the hemostix body is non-negative pressure, the second rubber plug is connected with the hemostix body in a sealing and sliding way; when the inside negative pressure that is of hemostix body, hemostix body second end still is equipped with blocking mechanism, and blocking mechanism can dismantle with the hemostix body and be connected, and blocking mechanism restriction second plug slides to hemostix body first end owing to the internal and external pressure differential of hemostix body. The utility model discloses a piston hemostix can realize repeatedly puncturing the needle blood sampling through first plug, seals blood in a relatively inclosed space after the blood sampling, prevents secondary pollution, and easy operation.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to a piston hemostix.
Background
Gather rich platelet (PRP) and generally use syringe blood sampling earlier and then pour into the centrifuging tube into, because the centrifuging tube needs many times centrifugation bloodletting, so will open the centrifuging tube many times, have secondary pollution's risk, and the operation is very inconvenient, consequently, needs to improve the centrifuging tube.
SUMMERY OF THE UTILITY MODEL
Need open the easy secondary pollution problem of blood sampling in order to solve the centrifuging tube centrifugation back that prior art exists, the utility model provides a piston hemostix.
In order to realize the technical purpose, the utility model adopts the following technical scheme:
a piston hemostix comprises a hemostix body, wherein a first rubber plug capable of being penetrated by a needle is arranged at the first end of the hemostix body, a second rubber plug is also arranged in the hemostix body, and when the interior of the hemostix body is non-negative pressure, the second rubber plug is in airtight sliding connection with the hemostix body; when the inside negative pressure that is of hemostix body, hemostix body second end still is equipped with blocking mechanism, and blocking mechanism can dismantle with the hemostix body and be connected, and blocking mechanism restriction second plug slides to hemostix body first end owing to the internal and external pressure differential of hemostix body.
Preferably, the stop gear is the block, and the block includes roof and lateral wall, is equipped with the internal thread in the lateral wall, hemostix body second end be equipped with internal thread complex external screw thread, the roof inboard is equipped with annular protrusion, one side that the second plug is close to the roof be equipped with the protruding complex annular groove of annular, the second plug in the annular groove outside compresses tightly the part for cyclic annular, the annular protrusion inserts in the annular groove, cyclic annular compresses tightly the part cover and establishes in the protruding outside of annular, cyclic annular compresses tightly the part and compresses tightly and restricts the second plug and slide between roof and hemostix body second end.
Preferably, the annular protrusion is wedge-shaped in cross-section.
Preferably, the annular bulge struts the annular pressing part, so that the diameter of the annular pressing part is larger than the cross-sectional diameter of the second end of the hemostix body.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a piston hemostix adjusts this internal pressure of hemostix through block mechanism, seals blood this internally at the hemostix after the blood sampling, can realize drawing blood many times after the centrifugation through first plug, prevents secondary pollution.
Drawings
For a clear explanation of the embodiments or prior art solutions of the present invention, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for a person skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of the piston hemostix when the piston hemostix is not under negative pressure;
FIG. 2 is a schematic view of the piston hemostix in a negative pressure state;
FIG. 3 is an enlarged view of a portion of the structure of FIG. 2 at A;
FIG. 4 is a perspective view of the cap;
fig. 5 is a perspective view of the second rubber plug.
In the figure: 1. a hemostix body; 1-1, a first end of the hemostix body; 1-2, a second end of the hemostix body; 2. a first rubber plug; 3. a second rubber plug; 3-1, annular grooves; 3-2, an annular compression component; 4. capping; 4-1, a top wall; 4-2, side wall; 4-3, annular protrusion; 5. an internal thread; 6. and (4) external threads.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
A piston hemostix comprises a hemostix body 1, a first rubber plug 2 capable of being penetrated by a needle is arranged at a first end 1-1 of the hemostix body, and the first rubber plug 2 is fixedly connected with the first end 1-1 of the hemostix body. A second rubber plug 3 is also arranged in the hemostix body 1, and as shown in figure 1, when the inside of the hemostix body 1 is non-negative pressure, the second rubber plug 3 is in sealed sliding connection with the hemostix body 1; as shown in fig. 2-5, when the interior of the hemostix body 1 is negative pressure, the second end 1-2 of the hemostix body is further provided with a blocking mechanism, the blocking mechanism is detachably connected with the hemostix body 1, and the blocking mechanism limits the second rubber plug 3 from sliding towards the first end 1-1 of the hemostix body due to the difference between the internal pressure and the external pressure of the hemostix body 1. The blocking mechanism is a cap 4, the cap 4 comprises a top wall 4-1 and a side wall 4-2, an internal thread 5 is arranged in the side wall 4-2, an external thread 6 matched with the internal thread 5 is arranged at the second end 1-2 of the hemostix body, an annular bulge 4-3 is arranged on the inner side of the top wall 4-1, and the section of the annular bulge 4-3 is wedge-shaped. One side of the second rubber plug 3 close to the top wall 4-1 is provided with an annular groove 3-1 matched with the annular bulge 4-3, the second rubber plug 3 outside the annular groove 3-1 is an annular pressing part 3-2, and the annular pressing part 3-2 is a deformable soft body structure. The annular bulge 4-3 is inserted into the annular groove 3-1, the annular pressing part 3-2 is sleeved outside the annular bulge 4-3, and the annular bulge 4-3 supports the annular pressing part 3-2, so that the diameter of the annular pressing part 3-2 is larger than the diameter of the cross section of the second end 1-2 of the hemostix body. The annular pressing component 3-2 presses between the top wall 4-1 and the second end 1-2 of the hemostix body to limit the sliding of the second rubber plug 3.
The utility model discloses a piston hemostix negative pressure uses the time minute for blood sampling stage and centrifugation back blood sampling stage. During the blood sampling stage, the hemostix body 1 is under negative pressure, and the blocking mechanism limits the second rubber plug 3 to slide towards the first end 1-1 of the hemostix body due to the difference between the internal pressure and the external pressure of the hemostix body 1. Blood is collected by threading a needle on the first rubber plug 2. After the blood sampling is finished, the blocking mechanism is released, and the second rubber plug 3 slides towards the first end 1-1 of the blood sampler body due to the difference between the internal pressure and the external pressure of the blood sampler body 1. Specifically, the cap 4 is screwed out in the direction away from the first end 1-1 of the hemostix body, the compression state between the annular compression part 3-2 and the top wall 4-1 is released, external air enters a gap between the annular compression part 3-2 and the top wall 4-1, the second rubber plug 3 is subjected to the action of internal and external pressure difference, the annular compression part 3-2 deforms under the action of pressure, and the diameter of the annular compression part 3-2 is smaller than the diameter of the cross section of the hemostix body 1. The second rubber plug 3 slides towards the first end 1-1 of the hemostix body until the internal and external air pressures of the hemostix body 1 are balanced. Then, pack into aseptic bag with hemostix body 1 and carry out high-speed centrifugation for the first time, form three layering from hemostix body first end 1-1 to hemostix body second end 1-2 after the high-speed centrifugation for the first time: red blood cell layer, platelet layer, serum layer. The first rubber plug 2 at the first end 1-1 of the hemostix body is punctured with a needle to extract the dark red blood cell layer, and the second rubber plug 3 slides towards the first end 1-1 of the hemostix body in the extraction process, so that the balance of the internal and external air pressures of the hemostix body 1 is always kept. Then shake the hemostix body 1 evenly, do the second high speed centrifugation, the platelet is concentrated in the first end 1-1 of hemostix body after the second high speed centrifugation, the first plug 2 of the first end 1-1 of hemostix body is punctured to extract the platelet, in the extracting process, the second plug 3 slides to the first end 1-1 of hemostix body, always keep the internal and external air pressure balance of hemostix body 1. After the drawing is completed, the remaining blood sample portion in the blood collecting device body 1 is discarded.
The utility model discloses a when piston hemostix non-negative pressure used, the airtight sliding connection of second plug 3 and hemostix body 1 pours into blood into through first plug 2.
Claims (4)
1. The utility model provides a piston hemostix, includes hemostix body (1), and hemostix body first end (1-1) is equipped with first plug (2) that can wear the needle, its characterized in that: a second rubber plug (3) is also arranged in the hemostix body (1),
when the interior of the hemostix body (1) is under non-negative pressure, the second rubber plug (3) is in sealed sliding connection with the hemostix body (1);
when the inside negative pressure that is of hemostix body (1), hemostix body second end (1-2) still is equipped with barrier mechanism, barrier mechanism can dismantle with hemostix body (1) and be connected, barrier mechanism restriction second plug (3) slides to hemostix body first end (1-1) owing to the internal and external pressure difference of hemostix body (1).
2. The piston-type hemostix according to claim 1, wherein: the blocking mechanism is a cover cap (4), the cover cap (4) comprises a top wall (4-1) and a side wall (4-2), an internal thread (5) is arranged in the side wall (4-2), a second end (1-2) of the hemostix body is provided with an external thread (6) matched with the internal thread (5), an annular bulge (4-3) is arranged on the inner side of the top wall (4-1), one side, close to the top wall (4-1), of the second rubber plug (3) is provided with an annular groove (3-1) matched with the annular bulge (4-3), the second rubber plug (3) on the outer side of the annular groove (3-1) is an annular pressing part (3-2), the annular bulge (4-3) is inserted into the annular groove (3-1), and the annular pressing part (3-2) is sleeved on the outer side of the annular bulge (4-3), the annular pressing part (3-2) is pressed between the top wall (4-1) and the second end (1-2) of the hemostix body to limit the sliding of the second rubber plug (3).
3. The piston-type hemostix according to claim 2, wherein: the section of the annular bulge (4-3) is wedge-shaped.
4. The piston-type hemostix according to claim 2, wherein: the annular bulge (4-3) is used for expanding the annular pressing part (3-2), so that the diameter of the annular pressing part (3-2) is larger than the diameter of the cross section of the second end (1-2) of the hemostix body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120279594.XU CN215227694U (en) | 2021-02-01 | 2021-02-01 | Piston hemostix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120279594.XU CN215227694U (en) | 2021-02-01 | 2021-02-01 | Piston hemostix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215227694U true CN215227694U (en) | 2021-12-21 |
Family
ID=79500508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120279594.XU Expired - Fee Related CN215227694U (en) | 2021-02-01 | 2021-02-01 | Piston hemostix |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215227694U (en) |
-
2021
- 2021-02-01 CN CN202120279594.XU patent/CN215227694U/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 |
Granted publication date: 20211221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |