CN220069701U - Peripheral blood sampling device - Google Patents
Peripheral blood sampling device Download PDFInfo
- Publication number
- CN220069701U CN220069701U CN202321682374.7U CN202321682374U CN220069701U CN 220069701 U CN220069701 U CN 220069701U CN 202321682374 U CN202321682374 U CN 202321682374U CN 220069701 U CN220069701 U CN 220069701U
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- blood sampling
- blood
- tube
- fixedly connected
- limiting
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- 238000010241 blood sampling Methods 0.000 title claims abstract description 115
- 210000005259 peripheral blood Anatomy 0.000 title claims abstract description 22
- 239000011886 peripheral blood Substances 0.000 title claims abstract description 22
- 210000004369 blood Anatomy 0.000 claims abstract description 33
- 239000008280 blood Substances 0.000 claims abstract description 33
- 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 description 20
- 229960002897 heparin Drugs 0.000 claims description 20
- 229920000669 heparin Polymers 0.000 claims description 20
- 210000001503 joint Anatomy 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims 1
- 238000005070 sampling Methods 0.000 abstract description 20
- 210000004204 blood vessel Anatomy 0.000 abstract description 9
- 239000011521 glass Substances 0.000 description 10
- 241000251468 Actinopterygii Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model belongs to the technical field of blood sampling devices, in particular to a peripheral blood sampling device which comprises a blood sampling tube, a push rod, a pressing plate, a blood sampling unit and a limiting unit; when blood sample collection is carried out on peripheral blood of a patient through a blood sampling unit, the positioning ring is driven to be aligned with a puncture position through holding the blood sampling tube, then the push rod is driven to move through the pressing plate, the push rod moves to drive the piston to move and drive the first spring to stretch, the pressing plate is continuously pressed to push the blood sampling port to move when the piston moves to the top end of the limiting ring and the blood sampling port, the blood sampling port is enabled to be in contact with skin of a patient to puncture a blood vessel, then the pressing plate is contacted, the piston moves reversely under the reset action of the first spring to generate negative pressure to extract the blood sample in the blood vessel of the patient, the sampling operation is completed, and the blood sampling port is directly exposed outside the blood sampling tube to scratch a user or a patient before sampling is avoided.
Description
Technical Field
The utility model relates to the technical field of blood sampling devices, in particular to a peripheral blood sampling device.
Background
Blood sampling test is a medical measure frequently adopted by patients diagnosed in hospitals, most of adult blood sampling is performed by adopting a vacuum blood sampling tube or a disposable syringe for venous blood sampling, peripheral blood is often collected by infants and old people due to thinner blood vessels or inconvenient movement, and most of hospitals are usually collected by blood sampling needles at present.
According to the bulletin No. CN213046906U, which is a peripheral blood sampling device, the peripheral blood sampling device comprises a sampling tube, a tube cap and a capillary glass tube, wherein one end of the sampling tube is provided with an opening, the tube cap comprises a tube cap body and a sleeving part, one end of the capillary glass tube penetrates through a through hole and a rubber plug to be inserted into the sampling tube, and only a small section of the capillary glass tube is exposed outside, so that the capillary glass tube is protected firstly, and is not easy to damage when in use; secondly, the collected blood sample directly flows into the sampling tube from the capillary glass tube, after the blood sample is collected, the capillary glass tube is pulled out, the rubber plug is restored to the original state, the hole through which the capillary glass tube passes is plugged, the tube cap body is tightly contacted with the opening end of the sampling tube through the first clamping protrusion and the second clamping protrusion, and the sealing rubber ring seals the opening end of the sampling tube, so that liquid leakage and pollution are avoided.
In the above patent, the capillary glass tube is arranged to puncture the blood vessel of the patient to collect blood, but the capillary glass tube is directly exposed outside, and before and after the blood collection device is used, the tip of the exposed capillary glass tube is easy to cause accidental scratches to the user and the patient; accordingly, a peripheral blood collection device has been proposed to solve the above-described problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the tip of the blood sampling device is directly exposed outside and is easy to cause unexpected scratch to users and patients, the utility model provides a peripheral blood sampling device.
The technical scheme adopted for solving the technical problems is as follows: the utility model discloses a peripheral blood sampling device which comprises a blood sampling tube and a push rod arranged in the blood sampling tube and extending to the top of the blood sampling tube, wherein a pressing plate is fixedly connected to the top of the push rod, blood sampling units are arranged in and outside the blood sampling tube, and a limiting unit connected with the blood sampling units is arranged outside the blood sampling tube.
Preferably, the blood sampling unit comprises a piston fixedly connected to the bottom of the push rod, a first spring is fixedly connected to the top of the piston, the top of the first spring is fixedly connected with the top end of the inside of the blood sampling tube, and a blood sampling port is formed in the blood sampling tube.
Preferably, the blood sampling unit further comprises a limiting ring fixedly connected to the outer wall of the top of the blood sampling port, a second spring is sleeved on the outer wall of the blood sampling port, and the top end and the bottom end of the second spring are fixedly connected with the limiting ring and the blood sampling tube respectively.
Preferably, the limiting unit comprises a positioning ring fixedly connected to the bottom of the blood collection tube, a sliding groove is formed in the positioning ring, an installation block is fixedly connected to the outer wall of the sliding groove, and a limiting rod is movably arranged in the installation block and the positioning ring and outside the positioning ring.
Preferably, the limit unit further comprises a baffle ring fixedly connected to the outer wall of the limit rod, a third spring is sleeved on the outer wall of the limit rod, two ends of the third spring are fixedly connected with the mounting block and the baffle ring respectively, an inclined surface portion is arranged above one side, close to the outer wall of the sliding groove, of the limit rod, and a limit hole matched with the outer diameter of the limit rod is formed in the blood sampling tube.
Preferably, the inside of the blood collection tube is provided with a through hole extending to the bottom of the blood collection tube, the through hole is matched with the inner diameter of the sliding groove and the outer diameter of the blood collection port, and the blood collection port is movably arranged in the blood collection tube through the through hole and the sliding groove.
Preferably, the inner wall of the positioning ring is provided with a movable chute communicated with the sliding chute, the inside of the mounting block is provided with a butt joint chute communicated with the movable chute, the inner diameters of the movable chute and the butt joint chute are matched with the outer diameter of the limiting rod, and the limiting rod is movably arranged in the positioning ring and the mounting block through the movable chute and the butt joint chute.
The utility model has the advantages that:
1. when the blood sampling unit needs to collect blood of peripheral blood of a patient, the positioning ring is driven to be aligned with the puncture position by holding the blood sampling tube, then the push rod is driven to move by the pressing plate, the push rod moves to drive the piston to move and drive the first spring to stretch, the pressing plate is continuously pressed when the piston moves to the top ends of the limiting ring and the blood sampling port to push the blood sampling port to move, the blood sampling port is contacted with the skin of the patient to puncture the blood vessel, then the pressing plate is contacted, the piston moves reversely under the reset action of the first spring to generate negative pressure to extract the blood sample in the blood vessel of the patient, the sampling operation is completed, and the blood sampling port is prevented from being directly exposed outside the blood sampling tube to scratch a user or a patient before the sampling;
2. according to the utility model, when the blood sampling port pierces the skin of a patient by moving to the outside of the blood sampling tube through the limiting unit, the limiting rod is extruded by the inclined surface part, so that the limiting rod drives the baffle ring to move in the moving chute and the butt joint chute, when the blood sampling port completes the piercing operation, the limiting rod is mutually aligned with the limiting hole, at the moment, the baffle ring reversely moves under the reset action of the third spring to enter the inside of the limiting hole, the blood sampling port is prevented from being separated from the skin of the patient when the piston is reset by the push rod to carry out the blood sampling operation, after the blood sampling tube is removed by the blood sampling operation, the limiting rod is pulled to separate the limiting rod from the limiting hole, and at the moment, the blood sampling port and the limiting ring reversely move into the inside of the blood sampling tube under the reset action of the second spring, so that the tip of the blood sampling device is prevented from scratching a user when the blood sampling operation device of the patient is placed.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of a blood collection tube according to the present utility model;
FIG. 3 is an enlarged view of the utility model at A in FIG. 2;
fig. 4 is a schematic structural diagram of a limiting unit according to the present utility model.
In the figure: 1. a blood collection tube; 2. a push rod; 3. a pressing plate; 4. a positioning ring; 5. a first spring; 6. a piston; 7. a limiting ring; 8. a second spring; 9. a blood collection port; 10. a limit rod; 11. a baffle ring; 12. a third spring; 13. a mounting block; 14. a slip groove; 15. a bevel portion; 16. and a limiting hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but 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.
Referring to fig. 1-4, a peripheral blood sampling device includes a blood sampling tube 1 and a push rod 2 disposed inside the blood sampling tube 1 and extending to the top of the blood sampling tube 1, wherein a pressing plate 3 is fixedly connected to the top of the push rod 2, blood sampling units are disposed inside and outside the blood sampling tube 1, a limiting unit connected with the blood sampling unit is disposed outside the blood sampling tube 1, the blood sampling unit includes a piston 6 fixedly connected to the bottom of the push rod 2, a first spring 5 is fixedly connected to the top of the piston 6, the top of the first spring 5 is fixedly connected to the top of the inside of the blood sampling tube 1, a blood sampling port 9 is disposed inside the blood sampling tube 1, the blood sampling unit further includes a limiting ring 7 fixedly connected to the outer wall of the top of the blood sampling port 9, a second spring 8 is sleeved on the outer wall of the blood sampling port 9, the top and the bottom of the second spring 8 are respectively fixedly connected with the limiting ring 7 and the blood sampling tube 1, a through hole extending to the bottom of the blood sampling tube 1 is disposed inside the blood sampling tube 1, the through hole is matched with the inner diameter of a sliding groove 14 and the outer diameter of the blood sampling port 9, and the port 9 is movably disposed inside the blood sampling tube 1 through the through hole and the sliding groove 14;
during operation, when blood sample collection is needed to be carried out on peripheral blood of a patient, the positioning ring 4 is driven to be aligned with a puncture position through holding the blood collection tube 1, then the push rod 2 is driven to move through the pressing plate 3, the push rod 2 is driven to move the piston 6 and drive the first spring 5 to stretch, the piston 6 continues to press the pressing plate 3 to push the blood collection port 9 to move when moving to the top ends of the limiting ring 7 and the blood collection port 9, the blood collection port 9 is enabled to be contacted with skin of the patient to puncture the blood vessel, then the pressing plate 3 is contacted, the piston 6 moves reversely under the reset action of the first spring 5, negative pressure is generated to extract the blood sample in the blood vessel of the patient, the sampling operation is completed, the blood collection port 9 is contracted into the blood collection tube 1 through the limiting unit, and scratches caused by the fact that the blood collection port 9 is directly exposed outside the blood collection tube 1 before and after sampling are avoided.
Further, the limiting unit comprises a positioning ring 4 fixedly connected to the bottom of the blood collection tube 1, a sliding groove 14 is formed in the positioning ring 4, a mounting block 13 is fixedly connected to the outer wall of the sliding groove 14, a limiting rod 10 is movably arranged in the mounting block 13 and the positioning ring 4, the limiting unit further comprises a ground baffle ring 11 fixedly connected to the outer wall of the limiting rod 10, a third spring 12 is sleeved on the outer wall of the limiting rod 10, two ends of the third spring 12 are fixedly connected with the mounting block 13 and the baffle ring 11 respectively, a bevel part 15 is arranged above one side, close to the outer wall of the sliding groove 14, of the limiting rod 10, a limiting round groove matched with the outer diameter of the limiting rod 10 is formed in the blood collection port 9, a moving sliding groove communicated with the sliding groove 14 is formed in the inner wall of the positioning ring 4, a butt joint sliding groove communicated with the moving sliding groove is formed in the inner wall of the mounting block 13, the inner diameters of the moving sliding groove and the butt joint sliding groove are matched with the outer diameters of the limiting rod 10, and the limiting rod 10 is movably arranged in the positioning ring 4 and the inner part of the mounting block 13 through the moving sliding groove and the butt joint sliding groove;
when the blood sampling device is operated, when the blood sampling port 9 is moved to the outside of the blood sampling tube 1 to puncture the skin of a patient, the blood sampling port 9 is moved to extrude the limiting rod 10 through the inclined surface part 15, the limiting rod 10 drives the baffle ring 11 to move in the moving chute and the butt joint chute, when the blood sampling port 9 is in puncture operation, the limiting rod 10 and the limiting hole 16 are mutually aligned, the baffle ring 11 reversely moves to enter the inside of the limiting hole 16 under the reset action of the third spring 12, the blood sampling port 9 is prevented from being separated from the skin of the patient when the piston 6 is reset by the push rod 2 to perform blood sampling operation, after the blood sampling operation is completed to remove the blood sampling tube 1, the limiting rod 10 is pulled to separate from the limiting hole 16, so that the limiting operation on the blood sampling port 9 is released, at the moment, the blood sampling port 9 and the limiting ring 7 reversely move in the reset action of the second spring 8 to enter the inside of the blood sampling tube 1, and the tip of the blood sampling device is prevented from scratching the user when the blood sampling device is placed on the patient.
Working principle: through the blood sampling unit, when needs carry out blood sample collection to patient's peripheral blood, drive retainer plate 4 through holding heparin tube 1 and puncture position alignment, then drive push rod 2 through pressing clamp plate 3 and remove, push rod 2 removes and drives piston 6 and remove and drive first spring 5 and stretch, piston 6 continues to press clamp plate 3 when removing the top of spacing ring 7 and heparin sampling port 9 and will promote heparin sampling port 9 and remove, make heparin sampling port 9 and patient's skin contact and puncture the blood vessel, then the contact is pressed to clamp plate 3, piston 6 carries out reverse movement under the reset action of first spring 5, produce the negative pressure and carry out the extraction to patient's intravascular blood sample, accomplish the sampling operation, and make heparin sampling port 9 shrink to the inside of heparin sampling tube 1 through spacing unit, avoid before and after the sample, heparin sampling port 9 can directly expose the outside of heparin sampling tube 1 and cause the fish tail to the user or the patient.
Through the spacing unit, when the blood sampling port 9 is to the outside of heparin tube 1 remove and puncture patient's skin, the removal of blood sampling port 9 extrudees gag lever post 10 through inclined plane 15, make gag lever post 10 remove in the inside drive baffle ring 11 of removal spout and butt joint spout, when blood sampling port 9 accomplishes the puncture operation, gag lever post 10 aligns with spacing hole 16 each other, baffle ring 11 carries out reverse movement under the reset action of third spring 12 and gets into the inside of spacing hole 16 this moment, avoid blood sampling port 9 when piston 6 receives push rod 2 reset action to draw blood operation, blood sampling port 9 and patient's skin separation, after accomplishing blood sampling operation removal heparin tube 1, make through pulling gag lever post 10 and spacing hole 16 separation, remove the spacing operation to blood sampling port 9, at this moment, blood sampling port 9 and spacing ring 7 carry out reverse movement at the reset action of second spring 8 get into blood sampling tube 1's inside, avoid when accomplishing the sample operation device to place to the patient, the tip of blood sampling device causes the fish tail to the user.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (7)
1. A peripheral blood collection device, characterized in that: including heparin tube (1) and setting are in heparin tube (1) is inside and extend to push rod (2) at heparin tube (1) top, the top fixedly connected with clamp plate (3) of push rod (2), the inside and the outside of heparin tube (1) are provided with blood sampling unit, the outside of heparin tube (1) be provided with the spacing unit that blood sampling unit is connected.
2. A peripheral blood collection device according to claim 1 wherein: the blood sampling unit comprises a piston (6) fixedly connected to the bottom of the push rod (2), a first spring (5) is fixedly connected to the top of the piston (6), the top of the first spring (5) is fixedly connected with the top end of the interior of the blood sampling tube (1), and a blood sampling port (9) is formed in the interior of the blood sampling tube (1).
3. A peripheral blood collection device according to claim 2 wherein: the blood sampling unit further comprises a limiting ring (7) fixedly connected to the outer wall of the top of the blood sampling port (9), a second spring (8) is sleeved on the outer wall of the blood sampling port (9), and the top end and the bottom end of the second spring (8) are fixedly connected with the limiting ring (7) and the blood sampling tube (1) respectively.
4. A peripheral blood collection device according to claim 3 wherein: the limiting unit comprises a positioning ring (4) fixedly connected to the bottom of the blood collection tube (1), a sliding groove (14) is formed in the positioning ring (4), an installation block (13) is fixedly connected to the outer wall of the sliding groove (14), and a limiting rod (10) is movably arranged in the installation block (13) and the positioning ring (4) and outside.
5. A peripheral blood collection device according to claim 4 wherein: the limiting unit further comprises a baffle ring (11) fixedly connected to the outer wall of the limiting rod (10), a third spring (12) is sleeved on the outer wall of the limiting rod (10), two ends of the third spring (12) are fixedly connected with the mounting block (13) and the baffle ring (11) respectively, an inclined surface portion (15) is arranged above one side, close to the outer wall of the sliding groove (14), of the limiting rod (10), and limiting holes (16) matched with the outer diameter of the limiting rod (10) are formed in the blood sampling port (9).
6. A peripheral blood collection device according to claim 5 wherein: the inside of heparin tube (1) is provided with the extension to the through-hole of heparin tube (1) bottom, the through-hole with the internal diameter of groove (14) that slides with the external diameter phase-match of heparin tube port (9), heparin tube port (9) pass through the through-hole with the activity of groove (14) that slides is in the inside of heparin tube (1).
7. A peripheral blood collection device according to claim 5 wherein: the inner wall of the locating ring (4) is provided with a movable chute communicated with the sliding groove (14), a butt joint chute communicated with the movable chute is arranged in the installation block (13), the inner diameters of the movable chute and the butt joint chute are matched with the outer diameter of the limit rod (10), and the limit rod (10) is movably arranged in the locating ring (4) and the installation block (13) through the movable chute and the butt joint chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321682374.7U CN220069701U (en) | 2023-06-29 | 2023-06-29 | Peripheral blood sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321682374.7U CN220069701U (en) | 2023-06-29 | 2023-06-29 | Peripheral blood sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220069701U true CN220069701U (en) | 2023-11-24 |
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ID=88823317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321682374.7U Active CN220069701U (en) | 2023-06-29 | 2023-06-29 | Peripheral blood sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220069701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118161159A (en) * | 2024-04-01 | 2024-06-11 | 东莞市中西医结合医院 | A peripheral blood collection tube |
-
2023
- 2023-06-29 CN CN202321682374.7U patent/CN220069701U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118161159A (en) * | 2024-04-01 | 2024-06-11 | 东莞市中西医结合医院 | A peripheral blood collection tube |
| CN118161159B (en) * | 2024-04-01 | 2024-12-13 | 东莞市中西医结合医院 | Peripheral blood sampling tube |
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