CN112220478A - Trace blood gas hemostix - Google Patents
Trace blood gas hemostix Download PDFInfo
- Publication number
- CN112220478A CN112220478A CN202010876543.5A CN202010876543A CN112220478A CN 112220478 A CN112220478 A CN 112220478A CN 202010876543 A CN202010876543 A CN 202010876543A CN 112220478 A CN112220478 A CN 112220478A
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- blood
- heparin
- mixing
- silica gel
- cavity body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/15003—Source of blood for venous or arterial blood
Abstract
The invention discloses a trace amount of blood gas hemostix, belonging to the field of medical instruments. The mixing device of the hemostix is used for accelerating the dissolution of the anticoagulant, the heparin anticoagulant which is easy to dissolve is adopted in the mixing device, and due to the arrangement of the metal mixing ball and the vortex sheet, the inflowing blood rotates in a vortex shape through the vortex sheet, and the metal mixing ball is impacted to shake in the cylindrical mixing cavity, so that the dissolution speed of the anticoagulant is accelerated, and the mixing effect is better; when the blood sample in the blood sampling pipe is taken to needs, press the air inlet valve bolt, just can form airflow channel between air inlet valve bolt and the silica gel plug, this airflow channel is linked together with the blood sampling pipe, place perpendicularly and silica gel plug one end when upwards when taking a blood sample, the blood sample in the blood sampling pipe can flow automatically under the effect of upper end atmospheric pressure and gravity, after loosening the air inlet valve bolt, can restore automatically under the spring action of silica gel plug, airflow channel closes, when filling the blood sample at the blood sampling pipe promptly, can realize automatic admitting air, thereby can take out the blood sample easily.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a trace amount of blood gas hemostix.
Background
It is often clinically necessary to take arterial blood samples from the radial artery, the forearm artery, the femoral artery, etc. of a patient for blood gas analysis. The arterial hemostix who uses at present clinically is mostly piston injection formula, as patent number: CN200920030045 shows that this kind of hemostix needs both hands to operate to, and the dose of taking a blood sample is difficult to accurate control, can not realize the blood sample of trace. In addition, the anticoagulant of the piston push-injection hemostix is usually coated on the inner wall directly, so the mixing effect is poor, and the anticoagulant effect of the blood sample is poor.
To this patent no: CN201520252660.9 discloses a trace blood gas hemostix, which adopts a self-filling mode to accurately control the blood collection amount, but because the anticoagulant is still directly coated on the inner wall, the dosage of the anticoagulant is not accurately controlled, and the anticoagulant has low dissolution speed and is difficult to be uniformly distributed in the blood, the blood is often coagulated to form thrombus, and the blockage of a blood collection tube can be seriously caused; in addition, because the tail end of the blood sampling tube is not provided with an air inlet channel, the air can be exhausted only through the air-permeable and liquid-tight sealing film in the air vent hole at the tail end when a blood sample is injected, the air inlet function is avoided, when the blood sample in the blood sampling tube is filled, the sealing film is blocked by the blood, air cannot enter the blood sampling tube, the blood sample is difficult to automatically flow out, the sampling operation is extremely troublesome, and the blood sample is easily polluted. To this need, a micro blood gas hemostix capable of improving the anticoagulant mixing effect and conveniently taking an internal blood sample is provided.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: to the problem that above-mentioned present trace amount blood gas hemostix exists, provide one kind and take its inside blood sample easily to improve the dissolving speed and the dissolving effect of anticoagulant, thereby improve a trace amount blood gas hemostix of the anticoagulation effect of blood sample.
A blood sampler for trace blood gas.
In order to solve the technical problems, the invention adopts the following technical scheme:
a trace blood gas hemostix comprises a blood collection tube and a silica gel plug arranged at the right end of the blood collection tube, wherein an air vent communicated with the blood collection tube is arranged in the silica gel plug, and a breathable liquid-tight sealing film is arranged in the air vent; still include hemostix mixing device, hemostix mixing device is including the column mixing cavity body that is located the right-hand member, the left end opening part of the column mixing cavity body is equipped with the blood taking needle connecting seat, the outside parcel of the column mixing cavity body has the opening towards the right blood sampling tube connecting seat, the anti-freezing piece of fixed heparin is pasted to the inner wall of the column mixing cavity body, the inside of the column mixing cavity body is equipped with metal mixing ball, the left end of blood sampling tube is pegged graft in the right-hand member opening of blood taking tube connecting seat, the inside of the column mixing cavity body to it is provided with the vortex piece to encircle to be close to column mixing cavity body left end opening position, just the vortex piece is located the end of blood taking needle connecting seat, be equipped with the air inlet valve bolt that is used for the blood taking tube to ventilate in the silica gel plug.
Wherein the blood sampling tube connecting seat is made of silica gel.
Wherein the heparin anticoagulant tablet is prepared by the following steps: soaking fiber cloth with the thickness of 0.5-2 mm in heparin sodium solution with the concentration of 1-10 mg/ml, taking out, drying and cutting into pieces.
Wherein the diameter of the metal mixing ball is smaller than the inner diameter of the blood collection tube.
Wherein heparin tube and hemostix mixing device's outside is equipped with a sleeve pipe, the sheathed tube left end cup joints in the outside of heparin tube connecting seat, and sheathed tube right-hand member cup joints on the silica gel plug.
Wherein, the inside of heparin tube connecting seat to press close to the right-hand member fixedly connected with spacing ring of the column mixing cavity body, the positive center of spacing ring is equipped with interior sawtooth hole, interior sawtooth hole internal diameter slightly is less than the diameter of metal mixing ball.
Compared with other methods, the method has the beneficial technical effects that:
the mixing device of the hemostix can be used for accelerating the dissolution of anticoagulant, and a heparin anticoagulant sheet with definite anticoagulant content is adopted in the mixing device, so that the dosage of the anticoagulant can be accurately controlled; when blood sample in the blood sampling tube needs to be stored or blood gas analysis is carried out, the air inlet valve bolt is pressed down, an air flow channel can be formed between the air inlet valve bolt and the silica gel plug, the air flow channel is communicated with the blood sampling tube, when blood sampling is vertically placed and one end of the silica gel plug is upward, the blood sample in the blood sampling tube can smoothly and automatically flow out under the action of upper-end air pressure and gravity, after the air inlet valve bolt is loosened, the air inlet valve bolt can automatically recover under the elastic action of the silica gel plug, the air flow channel is closed, namely, when the blood sampling tube is filled with the blood sample, automatic air inlet can be realized, and the blood sample can be easily.
Drawings
FIG. 1 is a schematic view in overall cutaway of the apparatus of the present invention;
FIG. 2 is a schematic structural diagram of the mixing device 1 of the blood collector in FIG. 1;
FIG. 3 is a right side view of FIG. 2;
1. a hemostix mixing device; 11. a columnar uniform mixing cavity body; 12. a blood taking needle connecting seat; 13. a blood collection tube connecting seat; 14. heparin anticoagulant tablets; 15. metal mixing balls; 16. a vortex sheet; 17. a limiting ring; 1701. an inner serrated hole; 2. a blood collection tube; 3. a silica gel plug; 4. air holes are formed; 5. a sealing film; 6. a sleeve; 7. an intake valve plug.
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 present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The words "upper", "lower", "left" and "right" when used herein are merely intended to designate corresponding upper, lower, left and right directions in the drawings, and do not limit the structure thereof.
As shown in fig. 1 a trace amount of blood gas hemostix, including heparin tube 2 and establish at 2 terminal silica gel plugs 3 of heparin tube, be equipped with the bleeder vent 4 that is linked together with heparin tube 2 in the silica gel plugs 3, be equipped with ventilative imperviousness seal membrane 5 in the bleeder vent 4. This structure is from filling formula arterial hemostix's basic structure, and during the blood sampling, the blood sample pours into heparin tube 2 into under the effect of arterial blood vessel pressure into, because the tail end of heparin tube 2 is equipped with bleeder vent 4, the exhaust of heparin tube 2 when can guaranteeing the blood sample to pour into makes the blood sample smoothly pour into, simultaneously because be equipped with ventilative imperviousness liquid seal membrane 5 in the bleeder vent 4 to guarantee that the blood sample can not spill over from the tail end when filling with.
Ordinary hemostix mostly adopts the mode of soaking, drying to coat the anticoagulant like heparin sodium at the inner wall of heparin tube 2, because the dose of anticoagulant is difficult to control, we have designed a hemostix mixing device 1 specially, and the device's structure is shown in fig. 2, and it includes both ends open-ended column mixing cavity body 11, the one end opening part of column mixing cavity body 11 is equipped with blood taking needle connecting seat 12, the other end opening part of column mixing cavity body 11 is equipped with heparin tube connecting seat 13, the inner wall of column mixing cavity body 11 is equipped with heparin anti-freezing piece 14, the inside of column mixing cavity body 11 is equipped with metal mixing ball 15. The blood sampling tube 2 is connected with the blood sampling tube connecting seat 13.
During the blood sampling, install the blood taking needle on blood taking needle connecting seat 12 and put on the blood sampling position, because be equipped with metal mixing ball 15 in the cylindrical mixing cavity body 11, force blood to change flow direction, flow to the inner wall of cylindrical mixing cavity body 11 from metal mixing ball 15's periphery to erode heparin anti-coagulation piece 14, make its quick dissolution. Meanwhile, the blood drives the metal mixing ball 15 to rotate in the cylindrical mixing cavity body 11, so that the heparin-stirring anticoagulant tablet 14 is uniformly mixed with the blood.
The inside of the cylindrical mixing cavity body 11 is also provided with a vortex sheet 16, and the vortex sheet 16 is positioned at the tail end of the blood taking needle connecting seat 12. The vortex sheet 16 has the first function of supporting the metal mixing ball 15 to prevent the metal mixing ball from blocking the liquid outlet of the blood taking needle and preventing blood from entering the cylindrical mixing cavity body 11; the second function of the vortex sheet 16 is to form a vortex in the cylindrical mixing cavity 11 when the blood flows in, so as to better wash the heparin anticoagulant sheet 14, make the dissolving speed of the heparin anticoagulant sheet faster and make the mixing more uniform.
Blood sampling tube connecting seat 13 is the silica gel cover, can insert the blood sampling tube 2 of different specifications.
The heparin anticoagulant tablet 14 is prepared by the following method: soaking fiber cloth with the thickness of 0.5-2 mm in heparin sodium solution with the concentration of 1-10 mg/ml, taking out and drying the fiber cloth, and then cutting the fiber cloth into slices. The heparin anticoagulant tablet has stable property and good dissolving effect.
The diameter of the metal mixing ball 15 is smaller than the inner diameter of the blood collection tube 2. When filling with the blood sample in heparin tube 2, the accessible shakes, makes metal mixing ball 15 get into 2 stirring blood samples of heparin tube, and the mixing effect is better, and heparin tube connecting seat 13's inside, and press close to the right-hand member fixedly connected with spacing ring 17 of the cylindrical mixing cavity body 11, be used for restricting metal mixing ball 15, with the metal ball restriction at the internal activity of the cylindrical mixing cavity body 11, the positive center of spacing ring 17 is equipped with interior sawtooth hole 1701, interior sawtooth hole 1701 internal diameter slightly is less than the diameter of metal mixing ball 15, interior sawtooth hole 1701 supplies the blood circulation on the one hand, and on the other hand its edge of difference can prevent that metal mixing ball 15 from pasting and causing the shutoff when the drill way, hinders the circulation of blood.
After the mixing device is adopted, the content of the anticoagulant in the blood sample can be accurately controlled, so that the blood coagulation and the thrombus formation can not be caused by common blood sampling or trace blood sampling, and the result of blood gas analysis is more accurate due to the fact that the content of the anticoagulant in the blood sample can be accurately controlled.
Heparin tube 2 and the outside of hemostix mixing device 1 are equipped with sleeve 6, the both ends of sleeve 6 are connected with heparin tube connecting seat 13 and silica gel plug 3 respectively. The sleeve 6 is used for collecting blood under a closed condition, preventing blood sample pollution and making the hemostix become a whole, so that the structure is firmer and the use is more convenient.
Because there is not inlet channel from sufficient formula hemostix tail end now, when the blood sample in heparin tube 2 was filled, seal membrane 5 was blockked up by blood, can't get into the air in the heparin tube 2, and the blood sample is difficult to flow out automatically. Therefore, an air inlet valve plug 7 for ventilating the blood sampling tube 2 is arranged in the silicone plug 3, the air inlet valve plug 7 can be in a screw type or a press type, the air inlet valve plug 7 adopted in the embodiment is in the press type, and the air vent 4 is positioned in the air inlet valve plug 7.
When needing to store the blood sample in the heparin tube 2 or carry out the blood gas analysis, press air inlet valve bolt 7, just can form airflow channel between air inlet valve bolt 7 and the silica gel stopper 3, this airflow channel is linked together with heparin tube 2, when heparin tube 2 placed perpendicularly and silica gel stopper 3 one end upwards, the blood sample in the heparin tube 2 can flow out smoothly automatically under the effect of upper end atmospheric pressure and gravity. After the air inlet valve bolt 7 is loosened, the air inlet valve bolt can automatically recover under the action of the elastic force of the silica gel plug 3, and an air flow channel is closed.
The present invention has been further described with reference to specific embodiments, but it should be understood that the detailed description should not be construed as limiting the spirit and scope of the present invention, and various modifications made to the above-described embodiments by those of ordinary skill in the art after reading this specification are within the scope of the present invention.
Claims (6)
1. Blood gas hemostix, include heparin tube (2) and establish silica gel plug (3) at heparin tube (2) right side end, be equipped with bleeder vent (4) that are linked together with heparin tube (2) in silica gel plug (3), be equipped with ventilative imperviousness seal membrane (5), its characterized in that in bleeder vent (4): the blood collection tube anti-freezing device is characterized by further comprising a blood collection device mixing device (1), wherein the blood collection device mixing device (1) comprises a columnar mixing cavity body (11) located at the right end, a blood collection needle connecting seat (12) is arranged at an opening at the left end of the columnar mixing cavity body (11), a blood collection tube connecting seat (13) with an opening facing right is wrapped outside the columnar mixing cavity body (11), a fixed heparin anti-freezing sheet (14) is pasted on the inner wall of the columnar mixing cavity body (11), a metal mixing ball (15) is arranged inside the columnar mixing cavity body (11), the left end of a blood collection tube (2) is inserted into the opening at the right end of the blood collection tube connecting seat (13), a vortex sheet (16) is arranged inside the columnar mixing cavity body (11) and is located close to the opening position at the left end of the columnar mixing cavity body (11) in a surrounding mode, and the vortex sheet (16) is, an air inlet valve bolt (7) used for ventilating the blood collection tube (2) is arranged in the silica gel plug (3), and the air vent (4) is located in the center of the air inlet valve bolt (7).
2. The device for collecting blood according to claim 1, wherein: heparin tube connecting seat (13) are the silica gel material.
3. The device for collecting blood according to claim 1, wherein: the heparin anticoagulant tablet (14) is prepared in the following way: soaking fiber cloth with the thickness of 0.5-2 mm in heparin sodium solution with the concentration of 1-10 mg/ml, taking out, drying and cutting into pieces.
4. The device for collecting blood according to claim 1, wherein: the diameter of the metal mixing ball (15) is smaller than the inner diameter of the blood collection tube (2).
5. The device for collecting blood according to claim 1, wherein: the outside of heparin tube (2) and hemostix mixing device (1) is equipped with a sleeve pipe (6), the left end cup joints in the outside of heparin tube connecting seat (13) of sleeve pipe (6), and the right-hand member of sleeve pipe (6) cup joints on silica gel plug (3).
6. The device for collecting blood according to claim 1, wherein: heparin tube connecting seat (13) inside to press close to right-hand member fixedly connected with spacing ring (17) of the cylindrical mixing cavity body (11), the positive center of spacing ring (17) is equipped with interior sawtooth hole (1701), interior sawtooth hole (1701) internal diameter slightly is less than the diameter of metal mixing ball (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010876543.5A CN112220478A (en) | 2020-08-27 | 2020-08-27 | Trace blood gas hemostix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010876543.5A CN112220478A (en) | 2020-08-27 | 2020-08-27 | Trace blood gas hemostix |
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| Publication Number | Publication Date |
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| CN112220478A true CN112220478A (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010876543.5A Pending CN112220478A (en) | 2020-08-27 | 2020-08-27 | Trace blood gas hemostix |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116421185A (en) * | 2023-04-14 | 2023-07-14 | 保定泰鑫德医疗器械制造有限公司 | Arterial trace blood sampling device and manufacturing method of blood vessel thereof |
-
2020
- 2020-08-27 CN CN202010876543.5A patent/CN112220478A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116421185A (en) * | 2023-04-14 | 2023-07-14 | 保定泰鑫德医疗器械制造有限公司 | Arterial trace blood sampling device and manufacturing method of blood vessel thereof |
| CN116421185B (en) * | 2023-04-14 | 2023-09-29 | 保定泰鑫德医疗器械制造有限公司 | Arterial trace blood sampling device and manufacturing method of blood vessel thereof |
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