CN218824297U - Blood sampling device and full-automatic thrombelastogram appearance - Google Patents
Blood sampling device and full-automatic thrombelastogram appearance Download PDFInfo
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- CN218824297U CN218824297U CN202223293915.5U CN202223293915U CN218824297U CN 218824297 U CN218824297 U CN 218824297U CN 202223293915 U CN202223293915 U CN 202223293915U CN 218824297 U CN218824297 U CN 218824297U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
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Abstract
The utility model discloses a blood sampling device and a full-automatic thrombelastogram instrument, wherein the blood sampling device comprises a frame; the driving mechanism is arranged on the frame; the transmission mechanism is arranged on the frame and is in transmission connection with the driving mechanism; the sampling needle is arranged on the transmission mechanism; the ventilation assembly comprises a connecting piece connected with the sampling needle and a ventilation needle arranged on the connecting piece, and a through ventilation channel is formed in the ventilation needle; during sampling, the driving mechanism can drive the sampling needle and the air-permeable needle to be inserted into the sample bottle through the transmission mechanism, so that the inner cavity of the sample bottle is communicated with the outside through the air-permeable channel. The utility model discloses a blood sampling device is through having set up the ventilative needle to make the sampling needle at the in-process of sampling, atmospheric pressure in the sample bottle is the same with the external world, has avoided the sampling volume deviation that leads to because of the atmospheric pressure difference, leads to subsequent test failure or the unsafe condition of test result.
Description
Technical Field
The utility model relates to a blood especially relates to a blood sampling device and full-automatic thrombelastogram appearance.
Background
The thromboelastogram instrument is an analysis instrument for monitoring a blood coagulation process based on the whole dynamic process of platelet aggregation, blood coagulation, fibrinolysis and the like, and obtains blood coagulation parameter information of a blood sample by monitoring, testing and analyzing the blood coagulation process of the blood sample, and accordingly, blood coagulation assessment which has important reference significance for predicting clinical conditions is made.
In the conventional thromboelastography, a sample needle (also referred to as a sampling needle) needs to be inserted into a blood collection tube during sampling, and a blood sample in the blood collection tube is extracted and then tested. The upper cover of the blood collection tube is made of rubber, namely, after the sample needle is inserted into the upper cover made of rubber, the upper cover is tightly attached to the outer wall of the sample needle, so that the blood collection tube is in a relatively closed state, at the moment, when the blood sample of the blood collection tube is extracted through the sample needle, the blood sample in the blood collection tube is reduced, so that the air pressure in the blood collection tube is reduced, the sample needle is difficult to collect under the action of the air pressure difference between the inside and the outside of the blood collection tube, the amount of the extracted blood of the sample needle cannot reach the amount of the blood required by the test, and the subsequent test fails or the test result is inaccurate.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a blood sampling device and full-automatic thrombelastogram appearance, it can make the sampling needle when extracting blood sample, keeps the inside and outside atmospheric pressure of sample bottle the same.
In order to achieve the above object, the utility model provides a blood sampling device, include:
a frame;
the driving mechanism is arranged on the frame;
the transmission mechanism is arranged on the rack and is in transmission connection with the driving mechanism;
the sampling needle is arranged on the transmission mechanism;
the ventilation assembly comprises a connecting piece connected with the sampling needle and a ventilation needle arranged on the connecting piece, and a through ventilation channel is formed in the ventilation needle;
during sampling, the driving mechanism can drive the sampling needle and the air-permeable needle to be inserted into the sample bottle through the transmission mechanism, so that the inner cavity of the sample bottle is communicated with the outside through the air-permeable channel.
In one or more embodiments, the connecting member includes a body portion, and a first connecting portion and a second connecting portion that are respectively formed by extending from two ends of an extending direction of the body portion, the first connecting portion is in transmission connection with the transmission mechanism, and the second connecting portion has a connecting hole thereon, and the connecting hole is in sliding connection with the sampling needle.
In one or more embodiments, the first connection portion has a first abutment surface and the second connection portion has a second abutment surface;
in the sampling process, the transmission mechanism is abutted against the second abutting surface so as to drive the air-permeable assembly to move towards the direction of the sample bottle and enable the air-permeable needle to be inserted into the sample bottle;
in the resetting process, the transmission mechanism is abutted against the first abutting surface so as to drive the air-permeable assembly to move away from the sample bottle and enable the air-permeable needle to exit from the sample bottle.
In one or more embodiments, the second connecting portion is provided with an air hole, the air needle is mounted on the second connecting portion, and the air passage is communicated with the air hole.
In one or more embodiments, a guide post is disposed on the transmission mechanism, the extending direction of the guide post is the same as the extending direction of the sampling needle, and the connecting piece is slidably connected with the guide post.
In one or more embodiments, the length of the sampling needle is greater than the length of the gas permeable needle; and/or the presence of a gas in the gas,
during sampling, the length of the sampling needle inserted into the lumen is greater than the length of the gas-permeable needle inserted into the lumen.
In one or more embodiments, the transmission mechanism includes a screw rod in transmission connection with the driving mechanism and a sliding seat in threaded connection with the screw rod, the screw rod is rotatably mounted on the rack, and the sampling needle is mounted on the sliding seat.
In one or more embodiments, a slide rail is arranged on the machine frame, the slide seat is connected with the slide rail in a sliding manner, and the extending direction of the slide rail is the same as the extending direction of the screw rod.
In one or more embodiments, a pressing plate is installed on the rack, and an avoiding groove for the sampling needle and the air-permeable needle to penetrate through is formed in the pressing plate.
The utility model also provides a full-automatic thrombelastogram appearance.
Compared with the prior art, according to the utility model discloses a blood sampling device is through having set up the ventilative needle to make the sampling needle at the in-process of sampling, atmospheric pressure in the sample bottle is the same with the external world, has avoided the sampling volume that leads to because of the atmospheric pressure difference to appear the deviation, leads to subsequent test failure or the unsafe condition of test result.
Drawings
FIG. 1 is a schematic view of a blood collection device according to an embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of a blood collection device according to an embodiment of the present invention; .
Fig. 3 is a schematic view of a blood collection device according to another embodiment of the present invention.
Description of the main reference numerals:
1. a frame; 11. a slide rail; 12. pressing a plate; 121. an avoidance groove; 2. a drive mechanism; 3. a transmission mechanism; 31. a screw; 32. a sliding seat; 33. a guide post; 4. a sampling needle; 5. a venting assembly; 51. a connecting member; 511. a body portion; 512. a first connection portion; 513. a second connecting portion; 514. a first abutting surface; 515. a second abutting surface; 516. air holes are formed; 52. a gas-permeable needle; 521. and (4) a ventilation channel.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1 and 2, a full-automatic thrombelastogram apparatus according to an embodiment of the present invention comprises a blood sampling device, the blood sampling device comprises a frame 1, a driving mechanism 2, a transmission mechanism 3, a sampling needle 4 and a ventilation assembly 5; the driving mechanism 2 is arranged on the frame 1; the transmission mechanism 3 is arranged on the frame 1 and is in transmission connection with the driving mechanism 2; the sampling needle 4 is arranged on the transmission mechanism 3; the ventilation assembly 5 comprises a connecting piece 51 connected with the sampling needle 4 and a ventilation needle 52 arranged on the connecting piece 51, and a ventilation channel 521 is arranged in the ventilation needle 52.
It should be noted that, in the sampling process, the driving mechanism 2 can drive the sampling needle 4 and the vent needle 52 to be inserted into a sample bottle (not shown in the figure) through the transmission mechanism 3, so that the inner cavity of the sample bottle is communicated with the outside through the vent channel 521, and thus the air pressure of the inner cavity is the same as that of the outside, and the situation that the sampling amount is deviated due to the air pressure difference, so that the subsequent test fails or the test result is inaccurate is avoided.
The sampling needle 4 has a hollow structure and can extract a sample in a sample bottle, and in this embodiment, the sample is a blood sample. The full-automatic thromboelastogram instrument can also comprise a detection device (not shown in the figure), and the sampling needle 4 can transfer the collected blood sample into a test cup (not shown in the figure) and transfer the test cup filled with the blood sample into the detection device for analysis and detection.
Wherein, the sample bottle can be for the heparin tube, and its upper cover has rubber material, and after sampling needle 4 passed rubber material's upper cover, the outer wall of sampling needle 4 can be hugged closely to the upper cover to play the effect of airtight heparin tube.
In one embodiment, the connection element 51 includes a body 511, and a first connection portion 512 and a second connection portion 513 respectively extending from two ends of the body 511 in the extending direction, the first connection portion 512 is connected to the transmission mechanism 3 in a transmission manner, and the second connection portion 513 has a connection hole, and the connection hole is slidably connected to the sampling needle 4.
Specifically, the first connection portion 512 has a first abutting surface 514, and the second connection portion 513 has a second abutting surface 515; in the sampling process, the transmission mechanism 3 abuts against the second abutting surface 515 so as to drive the air-permeable component 5 to move towards the direction of the sample bottle, and the air-permeable needle 52 is inserted into the sample bottle; during the resetting process, the transmission mechanism 3 abuts against the first abutting surface 514 so as to drive the air-permeable component 5 to move away from the sample bottle and to enable the air-permeable needle 52 to exit from the sample bottle.
After sampling, namely in the process of resetting, namely in the process that the sampling needle 4 gradually withdraws from the sample bottle, the inner cavity of the sample bottle can be always communicated with the outside through the ventilation channel 521 of the ventilation needle 52, the internal and external air pressure of the sample bottle is kept the same, and when the transmission mechanism 3 abuts against the first abutting surface 514, the transmission mechanism 3 can drive the ventilation needle 52 to withdraw from the sample bottle along with the sampling needle 4 until the resetting is finished.
Specifically, by adjusting the length of the body portion 511, in the resetting process, when the transmission mechanism 3 abuts against the first abutting surface 514, the length of the sampling needle 4 in the sample bottle is the same as the length of the air-permeable needle 52 in the sample bottle, that is, the sampling needle 4 and the air-permeable needle 52 can exit the sample bottle at the same time, so that the inner cavity of the sample bottle is always communicated with the outside through the air-permeable channel 521 of the air-permeable needle 52 in the process that the whole sampling needle 4 exits the sample bottle.
In one embodiment, the second connecting portion 513 is provided with a vent hole 516, the vent needle 52 is installed on the second connecting portion 513, and the vent channel 521 is communicated with the vent hole 516. It can be considered that the inner cavity of the sample bottle is communicated with the outside through the ventilation channel 521 of the ventilation needle 52 and the ventilation hole 516.
In another embodiment, as shown in fig. 3, the transmission mechanism 3 is provided with a guide post 33, the extending direction of the guide post 33 is the same as the extending direction of the sampling needle 4, and the connecting member 51 is slidably connected with the guide post 33. By such arrangement, the stability of the connecting piece 51 in the movement process and the connection strength of the connecting piece 51 and the transmission mechanism 3 can be improved.
As shown in fig. 1 and 2, in one embodiment, the length of sampling needle 4 is greater than the length of gas permeable needle 52; and/or, during sampling, the length of the lumen into which sampling needle 4 is inserted is greater than the length of the lumen into which gas permeable needle 52 is inserted. The length of the vented needle 52 is controlled to primarily avoid contact between the vented needle 52 and the blood sample in the sample vial during sampling, reducing the likelihood of contamination.
As shown in fig. 1 and 2, in one embodiment, the transmission mechanism 3 includes a screw 31 drivingly connected to the driving mechanism 2 and a sliding seat 32 threadedly connected to the screw 31, the screw 31 is rotatably mounted on the frame 1, and the sampling needle 4 is mounted on the sliding seat 32. The rotation of the screw 31 can make the sliding seat 32 move linearly relative to the screw 31, so as to control the insertion or the withdrawal of the sampling needle 4 into or out of the sample bottle. Wherein, both ends of the screw 31 can be rotatably connected to the frame 1.
Wherein the guide post 33 may be connected to the sliding seat 32.
Specifically, the rack 1 is provided with a slide rail 11, the slide seat 32 is slidably connected to the slide rail 11, and an extending direction of the slide rail 11 is the same as an extending direction of the screw 31. The slide rail 11 serves to guide the direction of the slide holder 32 and to restrict the rotation of the slide holder 32. Specifically, the sliding seat 32 may be provided with a sliding groove, and the sliding rail 11 is slidably connected in the sliding groove, so as to realize the sliding connection between the sliding seat 32 and the sliding rail 11.
Specifically, the driving mechanism 2 is a driving motor, and an output end of the driving motor is in transmission connection with the screw 31 through a gear set (not shown in the figure). The automatic sampling process of the full-automatic thromboelastogram instrument can be realized through the driving motor.
As shown in fig. 1 and 2, in a specific embodiment, a pressing plate 12 is mounted on the frame 1, and an escape groove 121 for allowing the sampling needle 4 and the air-permeable needle 52 to pass through is formed on the pressing plate 12. During sampling, the transmission mechanism 3 and the second abutting surface 515 of the second connection portion 513 move to insert the air-permeable needle 52 into the sample bottle, and the pressing plate 12 can prevent the second connection portion 513 from being inserted continuously, so as to prevent the air-permeable needle 52 from being inserted into the sample bottle excessively, and thus the blood sample is prevented from being contaminated by the air-permeable needle 52. The pressure plate 12 may also serve to prevent the sample vial from moving with the sampling needle 4 and the vented needle 52 during the resetting process. To sum up, the utility model discloses a blood sampling device and full-automatic thrombelastogram appearance are through having set up the ventilative needle to make the sampling needle at the in-process of sampling, atmospheric pressure in the sample bottle is the same with the external world, has avoided the sampling volume deviation that leads to because of the atmospheric pressure difference, leads to subsequent test failure or the unsafe condition of test result.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to thereby enable others skilled in the art to make and use various exemplary embodiments of the invention and various different scope of the invention are intended to be defined by the appended claims and their equivalents.
Claims (10)
1. A blood collection device, comprising:
a frame;
the driving mechanism is arranged on the frame;
the transmission mechanism is arranged on the rack and is in transmission connection with the driving mechanism;
the sampling needle is arranged on the transmission mechanism;
the ventilation assembly comprises a connecting piece connected with the sampling needle and a ventilation needle arranged on the connecting piece, and a through ventilation channel is formed in the ventilation needle;
during sampling, the driving mechanism can drive the sampling needle and the air-permeable needle to be inserted into the sample bottle through the transmission mechanism, so that the inner cavity of the sample bottle is communicated with the outside through the air-permeable channel.
2. The lancing device according to claim 1, wherein the connector comprises a body portion, and a first connector and a second connector extending from two ends of the body portion, the first connector is drivingly connected to the driving mechanism, and the second connector has a connection hole, and the connection hole is slidably connected to the sampling needle.
3. The lancing device of claim 2, wherein the first connector portion has a first abutment surface and the second connector portion has a second abutment surface;
in the sampling process, the transmission mechanism is abutted against the second abutting surface so as to drive the air-permeable assembly to move towards the direction of the sample bottle and enable the air-permeable needle to be inserted into the sample bottle;
in the resetting process, the transmission mechanism is abutted against the first abutting surface so as to drive the air-permeable assembly to move away from the sample bottle and enable the air-permeable needle to exit from the sample bottle.
4. The lancing device according to claim 3, wherein the second connecting portion has a vent hole, the vent needle is mounted on the second connecting portion, and the vent channel is in communication with the vent hole.
5. The lancing device of claim 1, wherein the actuator is provided with a guide post extending in the same direction as the sampling needle, and the connector is slidably coupled to the guide post.
6. The lancing device of claim 1, wherein the length of the sampling needle is greater than the length of the gas permeable needle; and/or the presence of a gas in the gas,
during sampling, the length of the sampling needle inserted into the lumen is greater than the length of the gas-permeable needle inserted into the lumen.
7. The lancing device of claim 1, wherein the drive mechanism includes a threaded rod drivingly connected to the drive mechanism and a slide block threadably connected to the threaded rod, the threaded rod being rotatably mounted to the housing, the sampling needle being mounted to the slide block.
8. The lancing device according to claim 7, wherein the rack is provided with a slide rail, the slide base is slidably connected to the slide rail, and the slide rail extends in the same direction as the screw rod.
9. The fully automatic thromboelastogram instrument of claim 1, wherein a pressure plate is mounted on the frame, and an avoidance slot is provided on the pressure plate for the sampling needle and the gas permeable needle to pass through.
10. A fully automatic thromboelastogram device, comprising a blood collection device according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223293915.5U CN218824297U (en) | 2022-12-08 | 2022-12-08 | Blood sampling device and full-automatic thrombelastogram appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223293915.5U CN218824297U (en) | 2022-12-08 | 2022-12-08 | Blood sampling device and full-automatic thrombelastogram appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218824297U true CN218824297U (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223293915.5U Active CN218824297U (en) | 2022-12-08 | 2022-12-08 | Blood sampling device and full-automatic thrombelastogram appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218824297U (en) |
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2022
- 2022-12-08 CN CN202223293915.5U patent/CN218824297U/en active Active
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