CN211243389U - Blood collector - Google Patents
Blood collector Download PDFInfo
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- CN211243389U CN211243389U CN201921577318.0U CN201921577318U CN211243389U CN 211243389 U CN211243389 U CN 211243389U CN 201921577318 U CN201921577318 U CN 201921577318U CN 211243389 U CN211243389 U CN 211243389U
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Abstract
The utility model discloses an adopt the syringe principle to carry out blood collection to be convenient for in time to the blood collector of blood coagulation accelerator that adds to the blood of gathering. The blood collector comprises a blood collecting needle group, a transparent test tube holder and a transparent blood collecting tube; the blood collecting tube is internally provided with a first piston, the first piston is provided with a push cylinder, the push cylinder is internally provided with a blood coagulant, and the blood coagulant pushes the second piston to extrude the blood coagulant to be pushed into the blood collecting tube through a push rod on the second piston. The blood collector can directly apply the collecting tube to blood coagulation and centrifugal separation to obtain serum, and can shorten the blood coagulation time.
Description
Technical Field
The utility model relates to a blood collection, the serum field of gathering, especially a blood collector.
Background
It is well known that: blood tests are widely performed for the purpose of preventing and diagnosing diseases. The blood test is usually a serum test such as a serum biochemical test, a serum immunological test, a serum endocrine test, a serum tumor marker test, and a serum drug concentration test. Blood collector is the device that is used for carrying on blood collection, and current blood collector generally can only store blood after gathering blood.
Particularly, when serum is checked, blood collected by a blood collector into a blood collection tube is uniformly mixed with a blood anticoagulant, then the blood is coagulated and centrifugally separated, and finally the serum is obtained; the blood clotting time is therefore longer.
In the existing blood collection, a vacuum blood collection tube is generally adopted, and a blood coagulant layer is coated on the inner wall of the vacuum blood collection tube; thereby realizing the addition of coagulant to the collected blood. However, the traditional piston type blood collector cannot coat the blood coagulant on the inner wall of the blood collecting cylinder; thereby being inconvenient for realizing the timely addition of the blood coagulant.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a blood collection device which adopts the principle of an injector and is convenient for adding a blood coagulant to the collected blood in time; the blood collector can directly use the collecting tube for blood coagulation and centrifugal separation to obtain serum and can shorten the blood coagulation time.
The utility model provides a technical scheme that its technical problem adopted is: the blood collector comprises a blood collecting needle group, a transparent test tube holder and a transparent blood collecting tube; the blood collection needle set is arranged at the bottom of the test tube holder and is provided with a bottle stopper puncture needle and a blood collection needle; the stopper puncture needle extends into the test tube holder;
the blood collecting tube is provided with a through cavity, and one end of the blood collecting tube is provided with a sealing cap for sealing the through cavity; the other end is provided with a top cover of the sealed through cavity; a rubber plug is arranged at the central position of the sealing cap;
a first piston matched with the inner diameter of the through cavity is arranged in the through cavity of the blood collecting tube; a sealing rubber plug is arranged at the central position of the first piston; the first piston is provided with a connecting boss; a push cylinder is arranged on the connecting boss; the lower end of the push cylinder is provided with a needle head;
the lower end of the push cylinder is detachably connected with the connecting boss, and the needle head penetrates through the sealing rubber plug;
the upper end of the push cylinder penetrates through the top cover; a groove is formed in the side face of the connecting boss; the top cover is provided with an inserting piece inserted from the side surface of the top cover, and the inserting piece is matched with the groove;
the minimum distance between the groove and the first piston is greater than or equal to the minimum distance between the inserting sheet and one end of the blood collecting tube, which is provided with the top cover;
the upper end of the push cylinder is provided with a top cap; the push cylinder is provided with a blood coagulant storage chamber; a second piston is arranged in the blood coagulant storage cavity; a push rod is arranged on the second piston; one end of the push rod is connected with the second piston, and the other end of the push rod penetrates through the top cap.
Furthermore, a connecting column is arranged at one end of the pushing cylinder, a connecting groove matched with the connecting column is formed in the connecting boss, and the connecting column is in threaded fit with the connecting groove.
Furthermore, one end of the top cover is connected with the blood collecting tube, and the other end of the top cover is provided with an annular boss.
Furthermore, a blood coagulant storage chamber between the second piston and the bottom of the inner cavity of the push cylinder is internally provided with a blood coagulant.
Furthermore, a blood volume annular marking line is arranged on the circumferential surface of the blood collecting tube.
Furthermore, a boss is arranged at the upper end of the push rod.
Further, the push rod is in threaded fit with the top cap.
The utility model has the advantages that: the blood collector of the utility model is provided with the first piston in the blood collecting pipe, and the push cylinder is arranged on the first piston, and the blood coagulant is arranged in the push cylinder, and the blood coagulant pushes the second piston to extrude the blood coagulant through the push rod on the second piston and pushes the blood coagulant into the blood collecting pipe, thereby realizing adding the blood coagulant into blood; after blood collection is accomplished, with the piston pulling top, demolish the pull rod simultaneously, then direct blood collection pipe carries out the solidification and the centrifugal separation of blood, obtains the serum to the blood coagulant of being convenient for adds, avoids blood to solidify the time longer in carrying out the blood coagulation process simultaneously, can raise the efficiency, guarantees the accuracy that the serum detected.
Drawings
Fig. 1 is an exploded schematic view of a blood collection device according to an embodiment of the present invention;
FIG. 2 is a front view of a blood collection set according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
fig. 4 is a schematic structural view of the blood collector for collecting blood in the embodiment of the present invention;
FIG. 5 is a schematic view of the blood collection device of the embodiment of the present invention after being placed in the blood coagulant;
FIG. 6 is a schematic view of the inverted blood collection tube of FIG. 5;
the following are marked in the figure: 1-blood collection needle group, 2-test tube holder, 3-blood collection tube, 31-through cavity, 4-top cover, 5-push cylinder, 51-needle, 52-blood coagulant storage cavity, 53-push rod, 54-boss, 55-second piston, 6-sealing cap, 7-first piston, 71-connecting boss, 72-groove, 73-connecting groove, 8-inserting sheet and 9-top cap.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1 to 6, the blood collector of the present invention, 1, blood collector, is characterized in that: comprises a blood collection needle group 1, a transparent test tube holder 2 and a transparent blood collection tube 3; the blood collection needle set 1 is mounted on the bottom of the test tube holder 2, the blood collection needle set 1 having a stopper puncture needle 11 and a blood collection needle 12; the stopper puncture needle 11 extends into the test tube holder 2;
the blood collecting tube 3 is provided with a through cavity 31, and one end of the blood collecting tube 3 is provided with a sealing cap 6 for sealing the through cavity; the other end is provided with a top cover 4 for sealing the through cavity; a rubber plug 61 is arranged at the center of the sealing cap 6;
a first piston 7 matched with the inner diameter of the through cavity is arranged in the through cavity 31 of the blood collecting tube 3; a sealing rubber plug 74 is arranged at the center of the first piston 7; the first piston 7 is provided with a connecting boss 71; the connecting boss 71 is provided with a push cylinder 5; the lower end of the push cylinder 5 is provided with a needle head 51;
the lower end of the push cylinder 5 is detachably connected with a connecting boss 71, and the needle head 51 penetrates through the sealing rubber plug 74;
the upper end of the push cylinder 5 penetrates through the top cover 4; a groove 72 is formed in the side surface of the connecting boss 71; the top cover 4 is provided with an inserting piece 8 inserted from the side surface of the top cover 4, and the inserting piece 8 is matched with the groove 72;
the minimum distance between the groove 72 and the first piston 7 is greater than or equal to the minimum distance between the inserting sheet 8 and the end of the blood collecting tube 3 provided with the top cover 4;
the upper end of the push cylinder 5 is provided with a top cap 9; the push cylinder 5 has a blood coagulant storage chamber 52; a second piston 55 is arranged in the blood coagulant storage chamber 52; a push rod 53 is arranged on the second piston 55; one end of the push rod 53 is connected with the second piston 55, and the other end passes through the top cap 9. Specifically, a blood coagulant is arranged in the blood coagulant storage chamber 52 between the second piston 55 and the bottom of the inner cavity of the push cylinder 5.
In the process of use:
blood coagulant is first added to the blood coagulant storage chamber 52 between the second piston 55 and the bottom of the inner chamber of the plunger 5. The blood coagulant may be serine protease such as trypsin, thrombin, reptilase and the like; thiol proteases (thio l proteases) such as cathepsin B and ficin; and a hydrolase such as a metalloprotease such as kininase I. Among them, serine protease is preferable in order to improve blood coagulation efficiency, and thrombin is preferable as serine protease.
Then the end of the blood collection tube 3 provided with the cap 6 is placed into the tube holder 2 such that the stopper puncture needle 11 extends through the stopper 61 into the blood collection chamber 32 of the blood collection tube 3; lancet 12 is then inserted into the patient's artery. Then, by pulling the plunger 5, the plunger 5 pulls the first piston 7, so that negative pressure is formed in the through cavity 31 to suck blood. Simultaneously pushing the push rod 53, pushing the second piston 55, so that the coagulant enters the blood; knowing that the first piston 7 is pulled to the uppermost end until the connecting boss 71 on the piston 7 is pulled to a position aligned with the tab 8, the tab 8 is inserted such that the tab 8 is inserted into the groove 72 on the connecting boss 71, thereby locking the piston 7 and completing the blood collection.
After collecting a corresponding amount of blood, taking the blood collecting tube 3 out of the test tube holder 2, and then removing the pull rod 5; then, the blood collection tube 3 is inverted, and blood coagulation and centrifugal separation are performed to obtain serum.
To sum up, the blood collector of the present invention is provided with the first piston in the blood collecting tube, and the pushing tube is provided on the first piston, and the blood coagulant is provided in the pushing tube, and the blood coagulant pushes the second piston to extrude the blood coagulant through the pushing rod on the second piston, and pushes the blood coagulant into the blood collecting tube, thereby adding the blood coagulant into the blood; after blood collection is accomplished, with the piston pulling top, demolish the pull rod simultaneously, then direct blood collection pipe carries out the solidification and the centrifugal separation of blood, obtains the serum to the blood coagulant of being convenient for adds, avoids blood to solidify the time longer in carrying out the blood coagulation process simultaneously, can raise the efficiency, guarantees the accuracy that the serum detected.
In order to facilitate the installation and the disassembly of the push cylinder 5, furthermore, one end of the push cylinder 5 is provided with a connecting column, the connecting boss 71 is provided with a connecting groove 73 matched with the connecting column, and the connecting column is in threaded fit with the connecting groove 73.
In order to display the collected blood volume, a blood volume annular marking line is further arranged on the circumferential surface of the blood collecting tube 3.
In order to facilitate pushing the push rod 53, further, a boss 54 is provided at an upper end of the push rod 53.
In order to facilitate the control of the amount of accelerator added, further, the push rod 53 is screw-fitted to the top cap 9.
In order to avoid the protrusion of the connection boss 71 on the piston 7 above the cap 4, further, the cap 4 is connected to the blood collection tube 3 at one end and provided with an annular boss 41 at the other end.
Claims (7)
1. Blood collector, its characterized in that: comprises a blood collection needle group (1), a transparent test tube holder (2) and a transparent blood collection tube (3); the blood collection needle set (1) is arranged at the bottom of the test tube holder (2), and the blood collection needle set (1) is provided with a bottle stopper puncture needle (11) and a blood collection needle (12); the bottle stopper puncture needle (11) extends into the test tube holder (2);
the blood collecting tube (3) is provided with a through cavity (31), and one end of the blood collecting tube (3) is provided with a sealing cap (6) for sealing the through cavity; the other end is provided with a top cover (4) for sealing the through cavity; a rubber plug (61) is arranged at the central position of the sealing cap (6);
a first piston (7) matched with the inner diameter of the through cavity is arranged in the through cavity (31) of the blood collecting tube (3); a sealing rubber plug (74) is arranged at the central position of the first piston (7); a connecting boss (71) is arranged on the first piston (7); a push cylinder (5) is arranged on the connecting boss (71); the lower end of the push cylinder (5) is provided with a needle head (51);
the lower end of the push cylinder (5) is detachably connected with the connecting boss (71), and the needle head (51) penetrates through the sealing rubber plug (74); the upper end of the push cylinder (5) penetrates through the top cover (4); a groove (72) is formed in the side surface of the connecting boss (71); the top cover (4) is provided with an inserting sheet (8) inserted from the side surface of the top cover (4), and the inserting sheet (8) is matched with the groove (72);
the minimum distance between the groove (72) and the first piston (7) is greater than or equal to the minimum distance between the inserting sheet (8) and one end of the blood collection tube (3) provided with the top cover (4);
the upper end of the push cylinder (5) is provided with a top cap (9); the push cylinder (5) is provided with a blood coagulant storage chamber (52); a second piston (55) is arranged in the blood coagulant storage chamber (52); a push rod (53) is arranged on the second piston (55); one end of the push rod (53) is connected with the second piston (55), and the other end of the push rod penetrates through the top cap (9).
2. A blood collector as claimed in claim 1, wherein: a connecting column is arranged at one end of the push cylinder (5), a connecting groove (73) matched with the connecting column is formed in the connecting boss (71), and the connecting column is in threaded fit with the connecting groove (73).
3. A blood collector as claimed in claim 1, wherein: one end of the top cover (4) is connected with the blood collecting tube (3), and the other end is provided with an annular boss (41).
4. A blood collector as claimed in claim 1, wherein: and a blood coagulant is arranged in the blood coagulant storage chamber (52) between the second piston (55) and the bottom of the inner cavity of the push cylinder (5).
5. A blood collector as claimed in claim 1, wherein: the circumferential surface of the blood collecting tube (3) is provided with a blood volume annular marking line.
6. A blood collector as claimed in claim 1, wherein: the upper end of the push rod (53) is provided with a boss (54).
7. A blood collector as claimed in claim 1, wherein: the push rod (53) is in threaded fit with the top cap (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921577318.0U CN211243389U (en) | 2019-09-20 | 2019-09-20 | Blood collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921577318.0U CN211243389U (en) | 2019-09-20 | 2019-09-20 | Blood collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211243389U true CN211243389U (en) | 2020-08-14 |
Family
ID=71985427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921577318.0U Active CN211243389U (en) | 2019-09-20 | 2019-09-20 | Blood collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211243389U (en) |
-
2019
- 2019-09-20 CN CN201921577318.0U patent/CN211243389U/en active Active
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