CN219871378U - Test card sample injection assembly and capillary tube adapter - Google Patents
Test card sample injection assembly and capillary tube adapter Download PDFInfo
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- CN219871378U CN219871378U CN202320970869.3U CN202320970869U CN219871378U CN 219871378 U CN219871378 U CN 219871378U CN 202320970869 U CN202320970869 U CN 202320970869U CN 219871378 U CN219871378 U CN 219871378U
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- sleeving part
- accommodating space
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- 238000002347 injection Methods 0.000 title claims abstract description 85
- 239000007924 injection Substances 0.000 title claims abstract description 85
- 238000005070 sampling Methods 0.000 claims abstract description 14
- 239000010902 straw Substances 0.000 claims abstract description 14
- 230000004308 accommodation Effects 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000008280 blood Substances 0.000 abstract description 20
- 210000004369 blood Anatomy 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 10
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000004868 gas analysis Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a test card sample injection assembly and a capillary tube adapter, the test card sample injection assembly comprises: the device comprises a test card sample injection needle, a test card sample injection head and a capillary suction tube adapter. The first sleeving part is fixedly sleeved with the test card sample injection needle, and the inner diameter of the second sleeving part is larger than the outer diameter of the test card sample injection needle. The capillary straw adapter is provided with a third sleeving part and a fourth sleeving part which are coaxially connected, the third sleeving part is sleeved with the test card sample injection head and the test card sample injection needle, the inner diameter of the fourth sleeving part is larger than the outer diameter of the test card sample injection needle, and a second gap is formed between the inner wall of the fourth sleeving part and the test card sample injection needle to accommodate the capillary straw. According to the mode, the contact between the sample and the atmosphere in the process of sampling the capillary suction tube by the test card sampling needle is isolated, the measurement accuracy is improved, the distance of the test card sampling needle entering the capillary suction tube is accurately controlled, and blood is prevented from being pushed out from the other end of the capillary suction tube.
Description
Technical Field
The disclosed embodiments of the present utility model relate to the field of detection technology, and more particularly, to a test card sample injection assembly and capillary pipette adapter.
Background
In clinical practice, there are stringent operating requirements for blood gas analysis by collecting blood with capillary tubing. The whole capillary straw needs to be filled with blood, bubbles or clots cannot exist in the middle of the capillary straw, if the bubbles or clots exist, the capillary straw needs to be horizontally placed after collection is completed, and detection is immediately carried out, if covers are arranged at two ends of the capillary straw, two ends of the capillary blood collection tube need to be sealed after blood is taken, and the contact of the blood and air is avoided, so that measurement is disturbed.
When the blood gas analyzer is in a sample injection, the sample injection needle of the test card enters the capillary suction tube, but the sample injection process of the analyzer is finished by holding the capillary suction tube by hand, and the distance of the sample injection needle of the test card entering the capillary suction tube cannot be accurately controlled, so that blood is easily pushed out from the other end of the capillary suction tube, and simultaneously, the whole sample injection process is easy to cause the contact of the atmosphere and the blood, so that the accuracy of the blood gas analysis is affected.
Disclosure of Invention
According to an embodiment of the utility model, the utility model provides a test card sample injection assembly and a capillary tube adapter to solve the above problems.
According to the utility model, there is provided a test card sample injection assembly comprising: the device comprises a test card sample injection needle, a test card sample injection head and a capillary suction tube adapter. The test card sample introduction head is provided with a first sleeving part and a second sleeving part which are coaxially connected, the first sleeving part is fixedly sleeved with the test card sample introduction needle, the inner diameter of the second sleeving part is larger than the outer diameter of the test card sample introduction needle, and a first gap is formed between the inner wall of the second sleeving part and the test card sample introduction needle. The capillary straw adapter is provided with a third sleeving part and a fourth sleeving part which are coaxially connected, the third sleeving part is sleeved with the test card sample injection head and the test card sample injection needle, the inner diameter of the fourth sleeving part is larger than the outer diameter of the test card sample injection needle, and a second gap is formed between the inner wall of the fourth sleeving part and the test card sample injection needle to accommodate the capillary straw.
The utility model provides another embodiment, the third sleeving part is provided with a first accommodating space and a second accommodating space which are mutually communicated, the second accommodating space is arranged between the first accommodating space and the fourth sleeving part, and the test card sample injection needle sequentially passes through the first accommodating space and the second accommodating space and reaches the space formed inside the fourth sleeving part.
In another embodiment, the radial dimension of the first accommodating space is larger than the radial dimension of the second accommodating space, and one end of the inner wall of the first accommodating space, which is close to the inner wall of the second accommodating space, forms a guiding inclined plane with gradually reduced radial dimension so as to guide the test card sample injection needle to enter the second accommodating space.
The utility model provides another embodiment, wherein one end of the inner wall of the fourth sleeving part far away from the inner wall of the second accommodating space forms a guiding inclined plane with gradually increased radial dimension so as to guide the capillary suction tube to enter the fourth sleeving part.
In another embodiment of the present utility model, an inner diameter of an opening at an end of the first accommodating space far from the fourth socket portion is larger than an inner diameter of an end near to the fourth socket portion, so as to form a stepped surface. The third sleeving part is sleeved on the second sleeving part by the opening to form interference fit, and the second sleeving part is limited by the step surface.
The utility model provides another embodiment, the inner diameter of the fourth sleeving part is smaller than the outer diameter of the capillary suction pipe, and the capillary suction pipe and the fourth sleeving part form interference fit.
The utility model provides another embodiment, the outer diameter of the end, close to the second sleeving part, of the capillary straw adapter is larger than the outer diameter of the end for accommodating the capillary straw.
The present utility model provides another capillary suction tube adapter comprising: the third cup joint portion and the fourth cup joint portion of coaxial coupling, the third cup joints portion and test card advance appearance head, test card advance appearance needle, fourth cup joint portion internal diameter is greater than the external diameter of test card advance appearance needle, make fourth cup joint portion inner wall with there is the space in order to hold capillary suction pipe between the test card advance appearance needle.
The utility model provides another embodiment, the third sleeving part is provided with a first accommodating space and a second accommodating space which are mutually communicated, the second accommodating space is arranged between the first accommodating space and the fourth sleeving part, and the test card sample injection needle sequentially passes through the first accommodating space and the second accommodating space and reaches the space formed inside the fourth sleeving part.
In another embodiment, the radial dimension of the first accommodating space is larger than the radial dimension of the second accommodating space, and one end of the inner wall of the first accommodating space, which is close to the inner wall of the second accommodating space, forms a guiding inclined plane with gradually reduced radial dimension so as to guide the test card sample injection needle to enter the second accommodating space.
The utility model has the beneficial effects that: the third portion of cup jointing that passes the capillary suction pipe is advanced to the test card sample introduction needle, reaches fourth portion of cup jointing, in fourth portion of cup jointing, the test card sample introduction needle gets into the inside of capillary suction pipe, sample in the extraction capillary suction pipe has isolated the in-process sample that the test card sample introduction needle extracted capillary suction pipe extracted sample and atmospheric contact, has promoted measuring accuracy, and the distance that the accurate control test card sample introduction needle got into the capillary suction pipe prevents that blood from ejecting from the other end of capillary suction pipe.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.
Drawings
The utility model will be further described with reference to the accompanying drawings and embodiments, in which:
FIG. 1 is a schematic diagram illustrating an assembly of a test card sample assembly according to an embodiment of the utility model;
FIG. 2 is a schematic cross-sectional view of a test card sample assembly according to an embodiment of the utility model;
FIG. 3 is a schematic view of a capillary suction tube adapter according to an embodiment of the present utility model;
FIG. 4 is a schematic cross-sectional view of a capillary suction device adapter in accordance with an embodiment of the present utility model.
Detailed Description
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases 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. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The term "and/or" in the present utility model is merely an association relation describing the association object, and indicates that three kinds of relations may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship. Further, "a plurality" herein means two or more than two. In addition, the term "at least one" herein means any one of a plurality or any combination of at least two of a plurality, for example, including at least one of A, B, C, and may mean including any one or more elements selected from the group consisting of A, B and C. Furthermore, the terms "first," "second," and "third" in this disclosure are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the technical scheme of the present utility model will be further described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 and 2, fig. 1 is an assembly schematic diagram of a test card sample injection assembly according to an embodiment of the utility model, and fig. 2 is a cross-sectional schematic diagram of a test card sample injection assembly according to an embodiment of the utility model. In these figures, it is included that: a test card sample injection needle 10, a test card sample injection head 20 and a capillary pipette adapter 30. The test card sample injection head 20 is provided with a first sleeving part 21 and a second sleeving part 22 which are coaxially connected, the first sleeving part 21 is fixedly sleeved with the test card sample injection needle 10, the inner diameter of the second sleeving part 22 is larger than the outer diameter of the test card sample injection needle 10, and a first gap 41 is formed between the inner wall of the second sleeving part 22 and the test card sample injection needle 10.
Therefore, the test card sample injection needle 10 is fixed with the test card sample injection head 20, and penetrates through the second sleeve joint part 22 from the first sleeve joint part 21 of the test card sample injection head 20, and extends out from the second sleeve joint part 22, wherein the first sleeve joint part 21 and the second sleeve joint part 22 are integrated. Meanwhile, the inner diameter of the second sleeve joint part 22 is larger than the outer diameter of the test card sample injection needle 10, so that the inner wall of the second sleeve joint part 22 is not contacted with the test card sample injection needle 10, and a first gap 41 exists.
Referring to FIG. 3, FIG. 3 is a schematic cross-sectional view of a capillary suction device adapter according to an embodiment of the utility model. In this figure, the capillary tube adapter 30 has a third sleeving part 31 and a fourth sleeving part 32 coaxially connected, the third sleeving part 31 is sleeved with the test card sample injection head 20 and the test card sample injection needle 10, the inner diameter of the fourth sleeving part 32 is larger than the outer diameter of the test card sample injection needle 10, and a second gap 42 is formed between the inner wall of the fourth sleeving part 32 and the test card sample injection needle 10 to accommodate the capillary tube 50.
In this embodiment, the inner wall of the third sleeving part 31 near the end of the test card sample injection head 20 is larger than the inner wall near the end of the fourth sleeving part 32. The third sleeving part 31 is sleeved with the test card sample injection head 20, and the test card sample injection needle 10 passes through the first sleeving part 21, the second sleeving part 22 of the test card sample injection head 20 and the third sleeving part 31 of the capillary tube adapter 30 to reach the fourth sleeving part 32. The inner diameter of the fourth socket portion 32 is larger than the outer diameter of the test card sample injection needle 10, so that a second gap 42 is formed between the inner wall of the fourth socket portion 32 and the test card sample injection needle 10, and the volume of the second gap 42 is consistent with the volume of the capillary tube 50, or the volume of the second gap 42 is slightly smaller than the volume of the capillary tube 50, in this case, the inner diameter of the capillary tube 50 still needs to be slightly larger than the outer diameter of the test card sample injection needle 10, so that the test card sample injection needle 10 can be easily inserted into the tube of the capillary tube 50, and the inner diameter of the inner wall of the fourth socket portion 32 is slightly smaller than the outer diameter of the capillary tube 50, so as to form a certain degree of interference fit, and prevent the sample from overflowing from one end of the fourth socket portion 32. Thus, for example, the capillary tube 50 enters the fourth socket 32, the test card sample needle 10 enters the capillary tube 50 of the fourth socket 32, the test card draws the sample in the capillary tube 50 through the test card sample needle 10, and the test card sample needle 10 enters the capillary tube 50 by about 1.5-2.5 mm. Therefore, the distance of the sample injection needle 10 of the test card entering the capillary tube 50 can be effectively controlled through the capillary vessel adapter, and the problem that the blood sample overflows from the other end of the capillary tube 50 is avoided.
In the above embodiment, the test card sample needle 10 passes through the third sleeving part 31 of the capillary tube 50 and reaches the fourth sleeving part 32, and in the fourth sleeving part 32, the test card sample needle 10 enters the inside of the capillary tube 50 to extract the sample in the capillary tube 50, so that the contact between the sample and the atmosphere in the process of extracting the sample by the capillary tube 50 by the test card sample needle 10 is isolated, the measurement accuracy is improved, the distance of the test card sample needle 10 entering the capillary tube 50 is accurately controlled, and the blood is prevented from being pushed out from the other end of the capillary tube 50.
In another embodiment of the present utility model, the third socket 31 is provided with a first accommodating space 33 and a second accommodating space 34 which are mutually communicated, the second accommodating space 34 is between the first accommodating space 33 and the fourth socket 32, and the test card sample needle 10 sequentially passes through the first accommodating space 33 and the second accommodating space 34 to reach a space formed inside the fourth socket 32.
Therefore, the first accommodating space 33 and the second accommodating space 34 of the third sleeving part 31 are mutually communicated, and the test card sample needle 10 sequentially passes through the first accommodating space 33 and the second accommodating space 34 from the test card sample head 20 to reach the space formed inside the fourth sleeving part 32.
In another embodiment of the present utility model, the radial dimension of the first accommodating space 33 is larger than the radial dimension of the second accommodating space 34, and an end of the inner wall of the first accommodating space 33 close to the inner wall of the second accommodating space 34 is formed with a guiding inclined surface 51 with gradually reduced radial dimension so as to guide the test card sample needle 10 into the second accommodating space 34.
In this embodiment, since the opening of the end of the first accommodating space 33 away from the fourth sleeving part 32 is connected with the test card sample injection head 20, the radial dimension of the first accommodating space 33 is larger than that of the second accommodating space 34, and the inner diameter of the first accommodating space 33 is much larger than the outer diameter of the test card sample injection needle 10, and the inner diameter of the second accommodating space 34 is only slightly larger than the test card sample injection needle 10. When the test card sample needle 10 passes through the first accommodating space 33 and enters the second accommodating space 34, the test card sample needle 10 may not smoothly enter the second accommodating space 34. Therefore, a guiding inclined plane 51 with gradually smaller inner diameter is formed at one end of the inner wall of the first accommodating space 33 near the inner wall of the second accommodating space 34, one end with larger inner diameter of the inclined plane 51 is connected with the inner wall of the first accommodating space 33, the inner diameter size is consistent with that of the inner wall of the first accommodating space 33, one end with smaller inner diameter of the inclined plane 51 is connected with the inner wall of the second accommodating space 34, and the inner diameter size is consistent with that of the inner wall of the second accommodating space 34. Through the guiding inclined plane 51, the test card sample needle 10 can smoothly enter the second accommodating space 34 from the first accommodating space 33.
In another embodiment of the present utility model, an end of the inner wall of the fourth socket portion 32 away from the inner wall of the second accommodating space 34 is formed with a guiding slope 52 with gradually increasing radial dimensions to guide the capillary tube 50 into the fourth socket portion 32.
In this embodiment, the inner diameter of the fourth socket 32 is smaller than the outer diameter of the capillary tube 50, and when the capillary tube 50 enters the fourth socket 32, the capillary tube 50 may not smoothly enter the fourth socket 32. Therefore, a guiding inclined surface 52 with an inner diameter gradually increasing is formed at an end of the inner wall of the fourth socket portion 32 away from the inner wall of the second accommodating space 34, and an end of the inclined surface 52 with a smaller inner diameter is connected to the inner wall of the fourth socket portion 32, and the inner diameter is consistent with the inner wall of the fourth socket portion 32. The capillary suction tube 50 can smoothly enter the fourth socket portion 32 through the guide slope 52.
In another embodiment of the present utility model, an inner diameter of an end of the first accommodating space 33, which is far from the fourth socket portion 32, is larger than an inner diameter of an end of the first accommodating space, which is near to the fourth socket portion 32, to form the stepped surface 53. The third sleeving part 31 is sleeved on the second sleeving part 22 by using an opening to form interference fit, and the second sleeving part 22 is limited by using the step surface 53.
Therefore, the step surface 53 exists in the first accommodating space 33, so that the test card sample introduction head 20 partially enters the first accommodating space 33 and is sleeved with the third sleeve joint part 31 of the capillary tube adapter 30. And there is interference fit between third cup joint portion 31 and the test card sampling head 20, the open-ended internal diameter of one end that first accommodation space 33 kept away from fourth cup joint portion 32 is less than the external diameter of test card sampling head 20, when test card sampling head 20 got into the capillary adapter, the material of capillary adapter had slight elasticity, and the inner wall that one end open-ended was kept away from fourth cup joint portion 32 to first accommodation space 33 was pressed by test card sampling head 20, produced slight deformation to realize interference fit, thereby make test card sampling head 20 and capillary adapter zonulae occludens.
The inner diameter of the first accommodating space 33 is only slightly larger than the outer diameter of the test card sample head 20, and when the test card sample head 20 enters the first accommodating space 33, the test card sample head 20 may not smoothly enter the first accommodating space 33. Therefore, a guiding inclined plane with gradually increased inner diameter is formed at one end of the inner wall of the first accommodating space 33 far from the inner wall of the second accommodating space 34, one end with smaller inner diameter of the inclined plane is connected with the inner wall of the first accommodating space 33, and the inner diameter size is consistent with that of the inner wall of the first accommodating space 33. Through the guiding inclined plane, the test card sample introduction head 20 can smoothly enter the first accommodating space 33.
In another embodiment of the present utility model, the inner diameter of the fourth socket 32 is smaller than the outer diameter of the capillary tube 50, and the capillary tube 50 and the fourth socket 32 form an interference fit.
There is interference fit between the fourth socket portion 32 and the capillary tube 50, and the inner diameter of the fourth socket portion 32 is smaller than the outer diameter of the capillary tube 50, and when the capillary tube 50 enters the capillary tube adapter, the material of the capillary tube adapter has slight elasticity, and the inner wall of the fourth socket portion 32 is extruded by the capillary tube to generate slight deformation, so that the interference fit is realized. Thereby tightly connecting the capillary suction tube 50 and the capillary vessel adapter.
In another embodiment of the present utility model, the outer diameter of the capillary tube adapter 30 at the end near the second socket 22 is larger than the outer diameter of the end receiving the capillary tube 50.
Since the outer diameter of the test card sample head 20 is much larger than the outer diameter of the capillary tube 50, and the capillary tube adapter 30 is taken by the user for convenience. Accordingly, the outer diameter of the capillary tube adaptor 30 at the end near the second socket portion 22 is larger than the outer diameter of the end accommodating the capillary tube 50.
Referring to fig. 3 and 4, fig. 3 is a schematic view showing a structure of a capillary suction tube adapter according to an embodiment of the present utility model, and fig. 4 is a schematic view showing a cross section of a capillary suction tube adapter according to an embodiment of the present utility model, in which the capillary suction tube adapter 30 includes: the third sleeving part 31 and the fourth sleeving part 32 are coaxially connected, the third sleeving part 31 is sleeved with the test card sample injection head 20 and the test card sample injection needle 10, the inner diameter of the fourth sleeving part 32 is larger than the outer diameter of the test card sample injection needle 10, and a gap is formed between the inner wall of the fourth sleeving part 32 and the test card sample injection needle 10 to accommodate the capillary tube 5050.
In this embodiment, the inner wall of the third sleeving part 31 near the end of the test card sample injection head 20 is larger than the inner wall near the end of the fourth sleeving part 32. The third sleeving part 31 is sleeved with the test card sample injection head 20, and the test card sample injection needle 10 passes through the first sleeving part 21, the second sleeving part 22 of the test card sample injection head 20 and the third sleeving part 31 of the capillary tube adapter 30 to reach the fourth sleeving part 32. The inner diameter of the fourth sleeve joint portion 32 is larger than the outer diameter of the test card sample injection needle 10, so that a second gap 42 is formed between the inner wall of the fourth sleeve joint portion 32 and the test card sample injection needle 10, and the volume of the second gap 42 is consistent with the volume of the capillary tube 50, and meanwhile, the outer diameter of the test card sample injection needle 10 is smaller than the inner diameter of the capillary tube 50. Thus, in a specific embodiment, the capillary tube 50 enters the fourth socket 32, the test card sample needle 10 enters the interior of the capillary tube 50 of the fourth socket 32, the test card draws the sample in the capillary tube 50 through the test card sample needle 10, and the test card sample needle 10 enters the interior of the capillary tube 50 by about 1.5-2.5 mm. Therefore, the distance of the test card sampling needle 10 entering the capillary tube 50 can be effectively controlled through the capillary vessel adapter, the problem that blood samples overflow from the tail of the capillary tube 50 is avoided, the test card sampling needle 10 passes through the third sleeving part 31 of the capillary tube 50 and reaches the fourth sleeving part 32, in the fourth sleeving part 32, the test card sampling needle 10 enters the capillary tube 50 to extract samples in the capillary tube 50, the contact between the samples and the atmosphere in the process of extracting the samples by the capillary tube 50 by the test card sampling needle 10 is isolated, and the measurement accuracy is improved.
The present utility model provides another embodiment, the third socket portion 31 is provided with a first accommodating space 33 and a second accommodating space 34 which are mutually communicated, the second accommodating space 34 is between the first accommodating space 33 and the fourth socket portion 32, and the test card sample needle 10 sequentially passes through the first accommodating space 33 and the second accommodating space 34 to reach the space formed inside the fourth socket portion 32.
Therefore, the first accommodating space 33 and the second accommodating space 34 of the third sleeving part 31 are mutually communicated, and the test card sample needle 10 sequentially passes through the first accommodating space 33 and the second accommodating space 34 from the test card sample head 20 to reach the space formed inside the fourth sleeving part 32.
In another embodiment, the radial dimension of the first accommodating space 33 is larger than the radial dimension of the second accommodating space 34, and the inner wall of the first accommodating space 33 is close to one end of the inner wall of the second accommodating space 34 to form a guiding inclined plane with gradually reduced radial dimension so as to guide the test card sample injection needle 10 into the second accommodating space 34.
In this embodiment, since the opening of the end of the first accommodating space 33 away from the fourth sleeving part 32 is connected with the test card sample injection head 20, the radial dimension of the first accommodating space 33 is larger than that of the second accommodating space 34, the inner diameter of the first accommodating space 33 is far larger than the outer diameter of the test card sample injection needle 10, and the inner diameter of the second accommodating space 34 is only slightly larger than the test card sample injection needle 10. When the test card sample needle 10 passes through the first accommodating space 33 and enters the second accommodating space 34, the test card sample needle 10 may not smoothly enter the second accommodating space 34. Therefore, a guiding inclined plane with gradually smaller inner diameter is formed at one end of the inner wall of the first accommodating space 33 near the inner wall of the second accommodating space 34, one end with larger inner diameter of the inclined plane is connected with the inner wall of the first accommodating space 33, the inner diameter size is consistent with that of the inner wall of the first accommodating space 33, one end with smaller inner diameter of the inclined plane is connected with the inner wall of the second accommodating space 34, and the inner diameter size is consistent with that of the inner wall of the second accommodating space 34. Through the guiding inclined plane, the test card sample needle 10 can smoothly enter the second accommodating space 34 from the first accommodating space 33.
Therefore, in the above embodiment, the capillary vessel adapter is added in the process of sucking the blood sample in the capillary vessel by the blood gas analyzer, so that the function of connecting the test card and the capillary suction tube 50 is achieved, the operator is not required to hold the capillary suction tube 50 by hand to complete the sample injection process, and the two ends of the capillary vessel adapter are respectively in interference fit with the test card sample injection head and the capillary suction tube 50, so that the tightness of the blood sample in the capillary suction tube 50 in the process of entering the test card is ensured, the contact between the blood sample and the atmosphere is effectively isolated, and the measurement accuracy is improved. Meanwhile, the capillary vessel adapter can effectively control the distance of the sample injection needle of the test card entering the capillary tube 50, so that the problem that blood samples overflow from the tail part of the other end of the capillary tube 50 is avoided.
Those skilled in the art will readily appreciate that many modifications and variations are possible in the device and method while maintaining the teachings of the utility model. Accordingly, the above disclosure should be viewed as limited only by the scope of the appended claims.
Claims (10)
1. A test card sample assembly, comprising:
a test card sample injection needle;
the first sleeving part is fixedly sleeved with the test card sample injection needle, and the inner diameter of the second sleeving part is larger than the outer diameter of the test card sample injection needle, so that a first gap is formed between the inner wall of the second sleeving part and the test card sample injection needle;
the capillary straw adapter is provided with a third sleeving part and a fourth sleeving part which are coaxially connected, the third sleeving part is sleeved with the test card sample injection head and the test card sample injection needle, the inner diameter of the fourth sleeving part is larger than the outer diameter of the test card sample injection needle, and a second gap is formed between the inner wall of the fourth sleeving part and the test card sample injection needle to accommodate the capillary straw.
2. The test card feed assembly of claim 1, comprising:
the third cup joints the portion and is equipped with first accommodation space and the second accommodation space of mutual intercommunication, the second accommodation space is in first accommodation space with between the fourth cup joints the portion, the test card sample needle passes in proper order first accommodation space the second accommodation space reaches the inside space that forms of fourth cup joints the portion.
3. The test card feed assembly of claim 2, comprising:
the radial dimension of the first accommodating space is larger than that of the second accommodating space, and the inner wall of the first accommodating space is close to one end of the inner wall of the second accommodating space to form a guiding inclined plane with gradually reduced radial dimension so as to guide the test card sampling needle to enter the second accommodating space.
4. The test card feed assembly of claim 2, comprising:
and one end of the inner wall of the fourth sleeving part, which is far away from the inner wall of the second accommodating space, forms a guiding inclined plane with gradually increased radial size so as to guide the capillary suction pipe to enter the fourth sleeving part.
5. The test card feed assembly of claim 2, comprising:
the inner diameter of the opening at one end of the first accommodating space far away from the fourth sleeving part is larger than the inner diameter of the opening at one end of the first accommodating space near the fourth sleeving part, so that a stepped surface is formed;
the third sleeving part is sleeved on the second sleeving part by the opening to form interference fit, and the second sleeving part is limited by the step surface.
6. The test card feed assembly of claim 1, comprising:
the inner diameter of the fourth sleeving part is smaller than the outer diameter of the capillary suction pipe, and the capillary suction pipe and the fourth sleeving part form interference fit.
7. The test card feed assembly of claim 1, comprising:
the outer diameter of the end, close to the second sleeving part, of the capillary straw adapter is larger than the outer diameter of the end for accommodating the capillary straw.
8. A capillary suction tube adapter, comprising:
the third cup joint portion and the fourth cup joint portion of coaxial coupling, the third cup joints portion and test card advance appearance head, test card advance appearance needle, fourth cup joint portion internal diameter is greater than the external diameter of test card advance appearance needle, make fourth cup joint portion inner wall with there is the space in order to hold capillary suction pipe between the test card advance appearance needle.
9. A capillary suction device according to claim 8, comprising:
the third cup joints the portion and is equipped with first accommodation space and the second accommodation space of mutual intercommunication, the second accommodation space is in first accommodation space with between the fourth cup joints the portion, the test card sample needle passes in proper order first accommodation space the second accommodation space reaches the inside space that forms of fourth cup joints the portion.
10. A capillary suction device adapter according to claim 9, comprising:
the radial dimension of the first accommodating space is larger than that of the second accommodating space, and the inner wall of the first accommodating space is close to one end of the inner wall of the second accommodating space to form a guiding inclined plane with gradually reduced radial dimension so as to guide the test card sampling needle to enter the second accommodating space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320970869.3U CN219871378U (en) | 2023-04-19 | 2023-04-19 | Test card sample injection assembly and capillary tube adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320970869.3U CN219871378U (en) | 2023-04-19 | 2023-04-19 | Test card sample injection assembly and capillary tube adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219871378U true CN219871378U (en) | 2023-10-20 |
Family
ID=88321013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320970869.3U Active CN219871378U (en) | 2023-04-19 | 2023-04-19 | Test card sample injection assembly and capillary tube adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219871378U (en) |
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2023
- 2023-04-19 CN CN202320970869.3U patent/CN219871378U/en active Active
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