CN215424662U - Needleless blood sampling test tube - Google Patents
Needleless blood sampling test tube Download PDFInfo
- Publication number
- CN215424662U CN215424662U CN202120639123.5U CN202120639123U CN215424662U CN 215424662 U CN215424662 U CN 215424662U CN 202120639123 U CN202120639123 U CN 202120639123U CN 215424662 U CN215424662 U CN 215424662U
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- Prior art keywords
- test tube
- needle
- blood
- blood collection
- free
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- Expired - Fee Related
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- 238000012360 testing method Methods 0.000 title claims abstract description 81
- 238000010241 blood sampling Methods 0.000 title claims abstract description 41
- 239000008280 blood Substances 0.000 claims abstract description 118
- 210000004369 blood Anatomy 0.000 claims abstract description 118
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229960002897 heparin Drugs 0.000 claims abstract description 18
- 229920000669 heparin Polymers 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims description 54
- 239000007788 liquid Substances 0.000 claims description 6
- 238000001802 infusion Methods 0.000 abstract description 10
- 208000015181 infectious disease Diseases 0.000 abstract description 5
- 239000002904 solvent Substances 0.000 abstract description 4
- 230000004872 arterial blood pressure Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 2
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 2
- 241001330002 Bambuseae Species 0.000 abstract description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 2
- 239000011425 bamboo Substances 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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 needle-free blood sampling test tube which comprises a test tube empty cylinder, a piston rod and a needle-free joint, wherein a piston is arranged at the end part of the piston rod of the needle-free blood sampling test tube, and the piston is arranged in the test tube empty cylinder; the needle-free connector is in threaded connection with the test tube main body, a blood collection head is arranged on the needle-free connector and is used for being connected with an infusion connector or a heparin cap connector so as to collect blood through the infusion connector. The empty section of thick bamboo of test tube is like the structural design of test tube, and the solvent of inside is the same with the heparin tube, and the colour dosage is all the same, and mainly used ICU severe ward has all can use of arterial blood pressure detection, owing to can connect general infusion and connect or heparin cap connects, adopts needleless, does not need to pour into the heparin tube into again after the test tube extraction blood yet again, reduces blood infection probability.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a needle-free blood sampling test tube.
Background
At present, the blood specimen is mainly collected by using a vacuum blood collection tube clinically. The vacuum blood sampling tube is a negative pressure blood sampling test tube. The vacuum blood sampling technology is good in the indexes of stabilizing the original properties, maintaining time and the like of the specimen, and is widely used in clinic. In the process of collecting blood, a nursing staff inserts one end of a blood collecting needle head into a blood vessel of a patient, inserts one end of the blood collecting needle head into a vacuum blood collecting tube, and sucks a certain amount of blood in the blood vessel of the patient into the blood collecting tube by utilizing negative pressure in the blood collecting tube. However, this method requires that the blood be collected each time, and on the one hand, the blood to be collected must be drawn out of the vacuum tube and then re-injected into the blood collection tube after the blood is collected, thereby increasing the probability of blood infection. On the other hand, inserting the needle into a blood vessel of a patient, the patient increases pain.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, an object of the present invention is to propose a needle-free blood collection test tube.
To achieve the above object, an embodiment of the present invention provides a needle-free blood collection tube, including:
empty tube of test tube;
the end of the piston rod is provided with a piston, and the piston is arranged in the test tube hollow cylinder;
the needle-free connector is in threaded connection with the test tube empty cylinder, a blood collection head is arranged on the needle-free connector and is used for being connected with a transfusion connector or a heparin cap connector so as to collect blood through the transfusion connector.
Further, according to an embodiment of the present invention, a return spring is provided between the end of the piston rod and the test tube empty cylinder.
Further in accordance with an embodiment of the present invention, the needle-free blood collection tube further comprises:
the piston rod fixing device comprises a fixing column, a piston rod fixing through hole is formed in the piston rod, the piston rod is close to the piston end, and the fixing column is detachably arranged in the piston fixing through hole so as to be clamped and fixed by the piston rod.
Further, according to an embodiment of the present invention, the outer side of the needleless connector is provided with an anti-slip thread.
Further in accordance with an embodiment of the present invention, the needleless blood collection test tube further includes an adapter sealing cap detachably disposed on the blood collection head for sealing the blood collection head after blood collection.
Further, according to an embodiment of the present invention, the joint sealing cap includes:
the sealing cover shell is of a structure with an opening at one end and is used for being sleeved at the position outside the blood sampling head;
the sealing column is arranged inside the sealing cover shell, and the outer diameter of the sealing column is matched with the inner diameter of the blood collection head;
the first sealing ring is arranged on the outer side of the sealing column, so that the sealing cover shell is sleeved on the blood sampling head and then seals the blood sampling head.
Further in accordance with an embodiment of the present invention, the needleless blood collection test tube further comprises a second sealing ring disposed on the blood collection head inner tube; so that the blood sampling head is further sealed after the sealing cover shell is sleeved on the blood sampling head.
Further, according to an embodiment of the present invention, a liquid inlet check valve is further disposed at a position of the needle-free connector corresponding to the inner tube of the blood collection head, so as to seal the inner tube of the blood collection head in a one-way manner.
Further, according to an embodiment of the present invention, the needle-free blood collection test tube further comprises a scale, the scale is arranged at a position outside the empty tube of the test tube;
and/or a blood sampling label, wherein the blood sampling label is arranged at the position of the outer side of the test tube empty cylinder.
According to the needle-free blood sampling test tube provided by the embodiment of the utility model, the piston is arranged at the end part of the piston rod and is arranged in the test tube hollow cylinder; the needle-free connector is in threaded connection with the test tube empty cylinder, a blood collection head is arranged on the needle-free connector and is used for being connected with a transfusion connector or a heparin cap connector so as to collect blood through the transfusion connector. The empty section of thick bamboo of test tube is like the structural design of test tube, and the solvent of inside is the same with the heparin tube, and the colour dosage is all the same, and mainly used ICU severe ward has all can use of arterial blood pressure detection, owing to can connect general infusion and connect or heparin cap connects, adopts needleless, does not need to pour into the heparin tube into again after the test tube extraction blood yet again, reduces blood infection probability.
Drawings
FIG. 1 is a schematic view of a needleless blood collection test tube according to an embodiment of the present invention;
FIG. 2 is an exploded view of a needleless blood collection test tube according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a needle-free blood collection test tube according to an embodiment of the present invention.
Reference numerals:
a test tube empty cartridge 10;
a piston rod 20;
a piston 201;
a piston rod fixing through hole 202;
a scale 203;
a needle-free connector 30;
a blood collection head 301;
a return spring 40;
a fixing column 50;
a joint sealing cover 60;
a seal cover housing 601;
a sealing post 602;
a first seal ring 603;
a second seal ring 70;
a liquid inlet check valve 80;
an elastic sheet 801;
a baffle 802.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the utility model. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1 to 3, an embodiment of the present invention provides a needle-free blood collection test tube, including: the test tube hollow cylinder 10, the piston rod 20 and the needleless connector 30, wherein the end of the piston rod 20 is provided with a piston 201, and the piston 201 is arranged in the test tube hollow cylinder 10; as shown in figure 1 to 3, the test tube blank 10 is similar to the test tube used in the ordinary experiment in terms of structure and size, and when in use, the solvent in the test tube is the same as that in the vacuum blood collection tube, and the color and dosage are the same. Since the test tube empty cylinder 10 is not vacuumized, the piston 201 is moved by means of the piston rod 20 to generate vacuuming, so as to suck blood into the test tube empty cylinder 10.
The needle-free connector 30 is in threaded connection with the test tube hollow cylinder, a blood collection head 301 is arranged on the needle-free connector 30, and the blood collection head 301 is used for being connected with a transfusion connector or a heparin cap connector so as to collect blood through the transfusion connector. Because can connect general infusion joint or heparin cap and connect, needleless blood sampling test tube mainly used ICU severe ward, ICU severe ward is generally through the infusion of infusion joint looks patient mutually, so, accessible needleless connector 30 connects infusion joint or heparin cap and connects, adopts needleless blood sampling test tube, and the blood of absorption is direct to carry out in the blood sampling pipe, need not pour into the blood sampling pipe into again after drawing blood with the vacuum tube again, reduces blood infection probability. Due to the threaded connection between the needle-free connector 30 and the test tube hollow tube, the needle-free connector 30 can be detached to perform corresponding detection of the blood in the test tube hollow tube 10. In addition, blood is directly drawn from the infusion connector or the heparin cap connector, and a needle is not required to be inserted into a blood vessel of a patient, so that pain is reduced.
According to the needle-free blood sampling test tube provided by the embodiment of the utility model, the piston 201 is arranged at the end part of the piston rod 20, and the piston 201 is arranged in the test tube hollow cylinder 10; the needle-free connector 30 is in threaded connection with the test tube hollow cylinder, a blood collection head 301 is arranged on the needle-free connector 30, and the blood collection head 301 is used for being connected with a transfusion connector or a heparin cap connector so as to collect blood through the transfusion connector. Test tube blank 10 is like the structural design of test tube, and the solvent in the inside is the same with the heparin tube, and the color dosage is all the same, and mainly used ICU severe ward has arterial blood pressure to detect all can use, owing to can connect general infusion and connect or heparin cap connects, adopts needleless blood sampling test tube, need not reinject the heparin tube after the test tube extraction blood again in, reduces blood infection probability.
Referring to fig. 1 and 3, a return spring 40 is provided between the end of the piston rod 20 and the test tube empty cylinder 10. As shown in fig. 1 and 3, the piston rod 20 can be restored by the two ends of the restoring spring 40 respectively abutting against the end of the test tube empty tube 10 and the end of the piston rod 20, and the piston 201 disposed at the end of the piston rod 20 is pulled to the position of the bottom of the test tube empty tube 10. Because the spring can provide certain tensile force, the blood that the test tube blank 10 gathered that can avoid the removal of piston rod 20 so can flow out. When blood is collected, the spring is pushed slightly to compress, and air in the test tube empty cylinder 10 is discharged. In practical application, a spring with smaller elasticity can be selected to avoid the need of larger thrust force during use.
Referring to fig. 1 and 2, the needleless blood sampling test tube further comprises a fixing post 50, a piston rod fixing through hole 202 is formed in the end, close to the piston 201, of the piston rod 20, and the fixing post 50 is detachably arranged in the piston rod fixing through hole, so that the piston rod 20 is clamped and fixed. In an embodiment of the present invention, by providing the piston rod 20 with the piston rod fixing through hole 202 at the end close to the piston 201, after blood is collected, the piston rod 20 can be locked and fixed by inserting the fixing post 50 into the piston rod fixing through hole 202, so as to prevent the piston rod 20 from moving and causing blood outflow after blood collection.
Referring to fig. 1 and 2, the outer side of the needleless connector 30 is provided with a non-slip thread 302. The needle-free adapter 30 is removed or attached to the test tube blank 10 by providing anti-slip threads 302 on the outside of the needle-free adapter 30 to facilitate twisting of the needle-free adapter 30.
Referring to fig. 2 and 3, the needleless blood collection test tube further comprises a connector sealing cover 60, and the connector sealing cover 60 is detachably disposed on the blood collection head 301 and is used for sealing the blood collection head 301 after blood collection. As shown in figures 2 and 3, after blood sampling, the blood sampling head 301 can be covered by the joint sealing cover 60, so that the problem of blood outflow of the test tube empty tube 10 caused by carelessness can be avoided.
Referring to fig. 2 and 3, the joint sealing cap 60 includes: the sealing cover comprises a sealing cover shell 601, a sealing column 602 and a first sealing ring 603, wherein the sealing cover shell 601 is of a structure with an opening at one end and is used for being sleeved at the position outside the blood sampling head 301; as shown in fig. 2 and 3, the sealing cap housing 601 is a cylindrical structure with one end open so as to be fitted at a position on the queen outer side of the blood collection head 301, thereby preventing the test tube empty tube 10 from flowing out of the blood collection head 301.
The sealing column 602 is arranged inside the sealing cover shell 601, and the outer diameter of the sealing column 602 is matched with the inner diameter of the blood collection head 301; the sealing post 602 can be inserted into the inner side of the blood collection head 301 while the sealing cap housing 601 covers the outer side of the blood collection head 301 to seal the blood collection channel of the blood collection head 301, so as to further seal the blood collection head 301, so that the blood does not flow out from the blood collection head 301.
The first sealing ring 603 is disposed outside the sealing column 602 to seal the blood collection head 301 after the sealing cap housing 601 is sleeved on the blood collection head 301. Since the first sealing ring 603 has a certain elasticity. The sealing post 602 is inserted into the blood collection channel of the blood collection tip 301 and then elastically contacts the inside of the blood collection channel, thereby further sealing the blood collection tip 301.
Referring to fig. 2 and 3, the needle-free blood collection test tube further comprises a second sealing ring 70, and the second sealing ring 70 is arranged on the inner tube of the blood collection head 301; so that the blood collection tip 301 is further sealed after the sealing cap housing 601 is fitted over the blood collection tip 301. As shown in fig. 2 and 3, since the second packing 70 is provided on the inner tube of the lancet 301, the second packing 70 has a certain elastic force. The sealing post 602 may be elastically contacted with the outside of the sealing post 602 after being inserted into the blood collection channel of the blood collection tip 301, thereby further sealing the blood collection tip 301.
Referring to fig. 2 and 3, the needle-free connector 30 is further provided with a liquid inlet check valve 80 at a position corresponding to the inner tube of the blood collection head 301, so as to seal the inner tube of the blood collection head 301 in a one-way manner. As shown in fig. 2 and fig. 3, the liquid inlet check valve 80 includes an elastic piece 801 and a blocking piece 802, one end of the elastic piece 801 is connected to the blocking piece 802, the other end of the elastic piece 801 is disposed inside the blood sampling head 301, the blocking piece 802 is located at the position of the blood sampling channel of the blood sampling head 301, and the end of the blood sampling channel can be sealed by the elastic force of the elastic piece 801. During blood collection, the piston rod 20 drives the piston 201 to move, so that the test tube hollow cylinder 10 generates vacuum suction, the blocking piece 802 can be sucked open, blood enters the test tube hollow cylinder 10, and the inner tube of the blood collecting head 301 is sealed in a one-way mode.
Referring to fig. 1 and 2, the needle-free blood collection test tube further comprises a scale 203 and/or a blood collection label, wherein the scale 203 is arranged at a position outside the test tube empty cylinder 10; the amount of blood collection liquid can be indicated by means of the scale 203. The blood sampling device is convenient for obtaining the blood volume during or after blood sampling.
The blood sampling label is disposed at a position outside the test tube empty tube 10. Blood can be marked through the blood sampling label, and the distinction is convenient.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing detailed description, or equivalent changes may be made in some of the features of the embodiments. All equivalent structures made by using the contents of the specification and the attached drawings of the utility model can be directly or indirectly applied to other related technical fields, and are also within the protection scope of the patent of the utility model.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (9)
1. A needle-free blood collection tube, comprising:
empty tube of test tube;
the end of the piston rod is provided with a piston, and the piston is arranged in the test tube hollow cylinder;
the needle-free connector is in threaded connection with the test tube empty cylinder, a blood collection head is arranged on the needle-free connector and is used for being connected with a transfusion connector or a heparin cap connector so as to collect blood through the transfusion connector.
2. The needle-free blood collection test tube according to claim 1, wherein a return spring is provided between the end of the piston rod and the test tube hollow tube.
3. The needle-free blood collection tube of claim 2, further comprising:
the piston rod fixing device comprises a fixing column, a piston rod fixing through hole is formed in the piston rod, the piston rod is close to the piston end, and the fixing column is detachably arranged in the piston fixing through hole so as to be clamped and fixed by the piston rod.
4. The needle-free blood collection test tube according to claim 1, wherein the outside of the needle-free connector is provided with anti-slip threads.
5. The needle-free blood collection test tube according to claim 1, further comprising an adapter sealing cap detachably provided on the blood collection head for sealing the blood collection head after blood collection.
6. The needle-free blood collection test tube of claim 5 wherein the adapter sealing cap comprises:
the sealing cover shell is of a structure with an opening at one end and is used for being sleeved at the position outside the blood sampling head;
the sealing column is arranged inside the sealing cover shell, and the outer diameter of the sealing column is matched with the inner diameter of the blood collection head;
the first sealing ring is arranged on the outer side of the sealing column, so that the sealing cover shell is sleeved on the blood sampling head and then seals the blood sampling head.
7. The needle-free blood collection test tube of claim 6 further comprising a second sealing ring disposed on the blood collection head inner tube; so that the blood sampling head is further sealed after the sealing cover shell is sleeved on the blood sampling head.
8. The needle-free blood collection test tube according to claim 1, wherein a liquid inlet one-way valve is further arranged on the needle-free joint corresponding to the inner tube of the blood collection head so as to seal the inner tube of the blood collection head in one way.
9. The needle-free blood collection test tube according to claim 1, further comprising a scale disposed at a position outside the test tube empty tube;
and/or a blood sampling label, wherein the blood sampling label is arranged at the position of the outer side of the test tube empty cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120639123.5U CN215424662U (en) | 2021-03-29 | 2021-03-29 | Needleless blood sampling test tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120639123.5U CN215424662U (en) | 2021-03-29 | 2021-03-29 | Needleless blood sampling test tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215424662U true CN215424662U (en) | 2022-01-07 |
Family
ID=79703666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120639123.5U Expired - Fee Related CN215424662U (en) | 2021-03-29 | 2021-03-29 | Needleless blood sampling test tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215424662U (en) |
-
2021
- 2021-03-29 CN CN202120639123.5U patent/CN215424662U/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: 20220107 |