CN219681352U - PRP syringe with two-way extraction function - Google Patents
PRP syringe with two-way extraction function Download PDFInfo
- Publication number
- CN219681352U CN219681352U CN202222353936.5U CN202222353936U CN219681352U CN 219681352 U CN219681352 U CN 219681352U CN 202222353936 U CN202222353936 U CN 202222353936U CN 219681352 U CN219681352 U CN 219681352U
- Authority
- CN
- China
- Prior art keywords
- tube
- prp
- injector
- connecting channel
- needle
- Prior art date
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Links
- 238000000605 extraction Methods 0.000 title claims abstract description 11
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000005086 pumping Methods 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000012780 transparent material Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 210000002381 plasma Anatomy 0.000 abstract description 6
- 210000004027 cell Anatomy 0.000 abstract description 5
- 208000015181 infectious disease Diseases 0.000 abstract description 4
- 210000001772 blood platelet Anatomy 0.000 abstract description 2
- 238000005119 centrifugation Methods 0.000 description 7
- 210000004369 blood Anatomy 0.000 description 4
- 239000008280 blood Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 210000003743 erythrocyte Anatomy 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000399 orthopedic effect Effects 0.000 description 2
- 210000004623 platelet-rich plasma Anatomy 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 210000004761 scalp Anatomy 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a PRP injector with a bidirectional extraction function, which is provided with a needle tube, wherein a piston is arranged in the needle tube, one end of the needle tube is provided with a needle head, a push rod is fixed on the piston and extends out from the other end of the needle tube, the piston is provided with a hollow tube body, the outer wall of the tube body is provided with a sealing rubber ring, the inner wall of the tube body is provided with an internal thread structure, a connecting channel is arranged in the tube body, one end of the connecting channel, which is close to the needle tube, is an inner end, the other end of the connecting channel is an outer port, the inner port of the connecting channel is connected with the end part of the tube body, the push rod is provided with a fixed plate, one side of the push rod is fixedly connected with a connecting rod, the other side of the push rod is fixedly connected with a connecting tube, and the outer wall of the connecting tube is provided with an external thread structure matched with the internal thread on the inner wall of the tube body. The utility model relates to a PRP injector with a bidirectional extraction function, which can ensure that PRP extraction is finished at one time by using a Ke-Ting piston in combination with a conventional threaded injector, and can avoid the possibility of damaging cell layering and infection caused by repeatedly sucking blood plasma when blood platelet-rich plasma is obtained in a centrifugal way.
Description
Technical Field
The utility model relates to the technical field of medical appliances.
Background
Platelet rich plasma (prp), which is a platelet rich plasma fraction obtained by centrifugation, has been used in a number of fields such as orthopedics, sports medicine, orthopedics, neurosurgery, etc. At present, the main technical means for extracting prp adopts a secondary centrifugation mode, the main instrument consumables are a centrifuge and a centrifuge tube, when the device is used, plasma is required to be input into the centrifuge tube by using a syringe and is taken out after centrifugation is completed, the operation is complicated, the prp with the required concentration cannot be accurately prepared due to the fact that cell layering can be damaged by two times of suction in the preparation process, red blood cells cannot be reserved or removed as required, and pollutants such as dust, bacteria and the like are easy to enter the centrifuge tube in the operation process, so that blood pollution is caused.
Disclosure of Invention
The utility model aims to solve the technical problem of realizing a disposable syringe for completing PRP extraction, and avoiding the possibility of damaging cell layering and infection caused by repeated plasma suction.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the PRP injector with the bidirectional extraction function is provided with a needle tube, a piston is arranged in the needle tube, one end of the needle tube is provided with a needle head, a push rod is fixed on the piston and extends out from the other end of the needle tube, the piston is provided with a hollow tube body, the outer wall of the tube body is provided with a sealing rubber ring, the inner wall of the tube body is provided with an internal thread structure, a connecting channel is arranged in the tube body, one end of the connecting channel, which is close to the needle tube, is an inner port, the other end of the connecting channel is an outer port, the inner port of the connecting channel is connected with the end of the tube body, the push rod is provided with a fixed plate, one side of the push rod is fixedly connected with a connecting rod, the other side of the push rod is fixedly connected with a connecting tube, and the outer wall of the connecting tube is provided with an external thread structure matched with the internal thread on the inner wall of the tube body.
The caliber of the inner port of the connecting channel is larger than that of the outer port, and the connecting channel is of an integral bucket-shaped structure.
The edge of the outer port of the connecting channel is connected with the end part of the pipe body through an annular connecting sheet.
The fixed plate in the center of the connecting pipe is provided with a convex plug which is in clearance fit with the opening at the outer end of the connecting channel.
The plug is a rubber block with an elastic truncated cone shape, and the larger end of the plug is fixedly connected to the fixing plate.
The outer end of the connecting rod is provided with a handle.
The needle and the inner end of the connecting channel are provided with a blocking piece for blocking.
The needle tube, the fixing plate, the connecting tube, the tube body and the connecting channel are of coaxial structures, and the needle tube, the tube body and the connecting tube are all made of transparent materials.
The outer end of the pipe body is provided with at least one notch.
The utility model relates to a PRP injector with a bidirectional extraction function, which can ensure that PRP extraction is finished at one time by using a Ke-Ting piston in combination with a conventional threaded injector, and can avoid the possibility of damaging cell layering and infection caused by repeatedly sucking blood plasma when blood platelet-rich plasma is obtained in a centrifugal way.
Drawings
The contents of each drawing in the specification of the present utility model are briefly described as follows:
FIG. 1 is a schematic diagram of a PRP injector with bi-directional pumping function;
FIG. 2 is a schematic diagram of the piston structure of FIG. 1;
FIG. 3 is a schematic view of the push rod of FIG. 1
The labels in the above figures are: 1. a piston; 2. a push rod; 3. a needle tube; 4. a needle 101, a tube; 102. sealing the rubber ring; 103. a connection channel;
201. a fixing plate; 202. a connecting pipe; 203. a plug; 204. a connecting rod; 205. a handle.
Detailed Description
The following detailed description of the embodiments of the utility model, such as the shape and construction of the components, the mutual positions and connection relationships between the components, the roles and working principles of the components, the manufacturing process and the operating and using method, etc., is provided to assist those skilled in the art in a more complete, accurate and thorough understanding of the inventive concept and technical solution of the present utility model.
As shown in figure 1, the PRP injector with the bidirectional extraction function is improved based on a clinically used conventional threaded injector, and mainly comprises a piston 1, a push rod 2, a needle tube 3 and a needle head 4, wherein the piston 1 is arranged in the needle tube 3, one end of the needle tube 3 is provided with the needle head 4, and the push rod 2 is fixed on the piston 1 and extends out from the other end of the needle tube 3. The adjustable suction piston 1 of the PRP injector is simple and convenient, the piston 1 is a round transparent piston 1, the middle is a conical backward convex threaded cylindrical bulge, and the edge of the piston 1 is provided with threads which can be matched with an injector rod.
As shown in fig. 2, the piston 1 is provided with a hollow pipe body 101, the outer wall of the pipe body 101 is provided with a sealing rubber ring 102 to form a conventional piston 1 structure, tightness with the inner wall of the needle tube 3 is guaranteed, the inner wall is provided with an internal thread structure, a connecting channel 103 is arranged in the pipe body 101, one end of the connecting channel 103 close to the needle tube is an inner port, the other end of the connecting channel is an outer port, the inner port of the connecting channel 103 is connected with the end of the pipe body 101, in order to guarantee sealing performance, the edge of the outer port of the connecting channel 103 is connected with the end of the pipe body 101 through an annular connecting sheet, and the structure is characterized in that a channel is arranged in the center of a conventional thread bottle cap to be communicated with the inside and outside.
As shown in fig. 3, the push rod 2 is provided with a circular fixing plate 201, a connecting rod 204 is fixedly connected to one side of the fixing plate 201, a handle 205 is arranged at the outer end of the connecting rod 204, a connecting pipe 202 is fixedly connected to the other side of the fixing plate 201, the connecting pipe 202 is a hollow pipe, an external thread structure matched with an internal thread on the inner wall of the pipe body 101 is arranged on the outer wall of the connecting pipe, the connecting pipe is fixedly connected through the thread structure, a protruding plug 203 is arranged on the fixing plate 201 in the center of the connecting pipe 202, the plug 203 is in clearance fit with the outer end opening of the connecting channel 103, the plug 203 is preferably provided with an elastic cone-shaped rubber block, and one larger end of the plug 203 is fixedly connected to the fixing plate 201. In order to facilitate the plug 203 to plug the outer port, the caliber of the inner port of the connecting channel 103 is larger than that of the outer port, and the whole structure is in a whole bucket shape.
Needle tubing 3, fixed plate 201, connecting pipe 202, body 101, connecting channel 103 are coaxial structure, and wherein needle tubing 3, body 101, connecting pipe 202 are the material that clearly states, and the convenience is observed when the operation, is equipped with at least one breach at the outer end of body 101 promptly, is close to the one end of handle 205 and sets up the breach promptly, and the breach can be when taking off push rod 2, avoids screw structure to connect too closely, through inserting tweezers to in the breach, conveniently applys effectual rotation force to push rod 2, when carrying out the centrifugation operation, still need to carry out the shutoff to the inner port of needle cylinder and connecting channel 103, and the shutoff can use the shutoff piece.
The operation comprises the following steps:
1) Connecting a scalp needle to a novel syringe for drawing blood;
2) Plugging the needle 4 by using a conventional disposable plugging piece;
3) The push rod 2 is screwed down, because the blood drawing amount of the needle tube 3 is the same as the maximum scale of the needle tube 3, the inner end of the push rod 2 is close to the opening of the needle tube 3, if the threaded structures of the tube body 101 and the connecting tube 202 are matched too tightly, tweezers can be used for inserting the push rod 2 into the gap of the tube body 101 from the gap inside the push rod 2 and the needle tube 3, and then the push rod 2 can be detached by rotating;
4) The outer port of the connecting channel 103 is plugged by using a conventional disposable plug;
5) Performing first gradient centrifugation;
6) Removing the plug on the outer port of the connecting channel, and extracting the separating liquid (generally the erythrocyte layer) by using the other needle tube 3;
7) The outer port of the connecting channel 103 is plugged by using a conventional disposable plug;
8) Performing a second gradient centrifugation;
9) Removing the plug on the outer port of the connecting channel, and extracting the separating liquid (typically serum part) by using the other needle tube 3;
10 If the plunger 2 is returned to the piston 1 to restore the syringe, the injection can be performed using the needle tube 3.
The syringe can complete twice centrifugation, avoids less damage to cell layering, reduces the risk of blood infection caused by repeated suction, and has the advantages of more constant concentration and better activity due to conical design of the base of the piston 1.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is capable of being modified or applied directly to other applications without modification, as long as various insubstantial modifications of the method concept and technical solution of the utility model are adopted, all within the scope of the utility model.
Claims (9)
1. The PRP injector with the bidirectional extraction function is provided with a needle tube, a piston is arranged in the needle tube, one end of the needle tube is provided with a needle head, and a push rod is fixed on the piston and extends out from the other end of the needle tube, and is characterized in that: the piston is equipped with hollow body, the body outer wall is equipped with sealing rubber circle, and the inner wall is equipped with internal thread structure, be equipped with the connecting channel in the body, connecting channel is close to cylinder one end and is the inner port, and the other end is the outer port, connecting channel's inner port and body end connection, the push rod is equipped with the fixed plate, and its one side rigid coupling has the connecting rod, and opposite side rigid coupling connecting pipe, the outer wall of connecting pipe is equipped with internal thread complex external thread structure on the body inner wall.
2. The PRP injector with bi-directional pumping function of claim 1, wherein: the caliber of the inner port of the connecting channel is larger than that of the outer port, and the connecting channel is of an integral bucket-shaped structure.
3. The PRP injector with bi-directional pumping function according to claim 2, characterized in that: the edge of the outer port of the connecting channel is connected with the end part of the pipe body through an annular connecting sheet.
4. A PRP injector with bi-directional pumping according to claim 1, 2 or 3, characterized in that: the fixed plate in the center of the connecting pipe is provided with a convex plug which is in clearance fit with the opening at the outer end of the connecting channel.
5. The PRP injector with bi-directional pumping function of claim 4, wherein: the plug is a rubber block with an elastic truncated cone shape, and the larger end of the plug is fixedly connected to the fixing plate.
6. The PRP injector with bi-directional pumping according to claim 5, wherein: the outer end of the connecting rod is provided with a handle.
7. The PRP injector with bi-directional pumping according to claim 1 or 6, characterized in that: the needle and the inner end of the connecting channel are provided with a blocking piece for blocking.
8. The PRP injector with bi-directional pumping function of claim 7, wherein: the needle tube, the fixing plate, the connecting tube, the tube body and the connecting channel are of coaxial structures, and the needle tube, the tube body and the connecting tube are all made of transparent materials.
9. The PRP injector with bi-directional pumping according to claim 1 or 8, characterized in that: the outer end of the pipe body is provided with at least one notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222353936.5U CN219681352U (en) | 2022-09-05 | 2022-09-05 | PRP syringe with two-way extraction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222353936.5U CN219681352U (en) | 2022-09-05 | 2022-09-05 | PRP syringe with two-way extraction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219681352U true CN219681352U (en) | 2023-09-15 |
Family
ID=87943718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222353936.5U Active CN219681352U (en) | 2022-09-05 | 2022-09-05 | PRP syringe with two-way extraction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219681352U (en) |
-
2022
- 2022-09-05 CN CN202222353936.5U patent/CN219681352U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |