Double-cavity sampling dropper

Abstract

The utility model discloses a double-cavity sampling dropper, which comprises a sample suction bag, a dropper cover and a dropper cover, one end of the sample suction tube is connected with the sample suction bag and is provided with a sample suction cavity; the diluent extraction bag is connected with the sample suction bag and is provided with a second deformation cavity; one end of the diluent extraction tube is connected with the diluent extraction bag, and the diluent extraction tube is provided with a diluent extraction cavity; wherein scales are arranged on the peripheral walls of the sample suction tube and the diluent extraction tube. According to the utility model, through the design of double cavities and double bags, the integrated operation of sample suction and diluent extraction is realized, the inconvenience of repeated switching when a single-cavity dropper is used is avoided, the operation process is simplified, and the operation steps are reduced, so that the blood detection efficiency is remarkably improved; the sample suction tube and the diluent suction tube are both provided with scales, so that a user can more accurately control the required amount when sucking a blood sample and a diluent, the accuracy of the dilution ratio is ensured, and the accuracy of a detection result is directly influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical sampling and detection, in particular to a double-cavity sampling dropper. Background Art

[0002] Blood testing is a common medical test method that involves collecting a blood sample from a person and then running it through an analyzer to assess their health. Blood testing can be used to detect a variety of diseases and health conditions, including but not limited to anemia, infection, inflammation, cancer, diabetes, cardiovascular disease, and more.

[0003] With the continuous advancement of technology, many blood tests can now use peripheral blood (fingertip blood) as blood samples, making them available for home testing. However, many blood samples need to be diluted before testing, and the dilution ratio directly affects the test results, requiring professional operation. In addition, single-chamber droppers may not be able to quickly switch between the aspiration and dilution processes due to the single chamber, affecting experimental efficiency. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a double-chamber sampling dropper that can simultaneously draw blood and diluent, thereby improving the convenience and efficiency of blood testing.

[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0006] A double-chamber sampling dropper comprises: a sample suction capsule having a first deformation chamber that can elastically shrink; a sample suction tube, one end of which is connected to the sample suction capsule, the sample suction tube being provided with a sample suction chamber connected to the first deformation chamber, the sample suction chamber being arranged away from an opening at one end of the sample suction capsule; a diluent extraction capsule, which is connected to the sample suction capsule and having a second deformation chamber that can elastically shrink; a diluent extraction tube, one end of which is connected to the diluent extraction capsule, the diluent extraction tube being provided with a diluent extraction chamber connected to the second deformation chamber, the diluent extraction chamber being arranged away from an opening at one end of the diluent extraction capsule; wherein the outer peripheral walls of the sample suction tube and the diluent extraction tube are both provided with scales.

[0007] Furthermore, the sample suction capsule is arranged above the diluent extraction capsule, the outer wall of the bottom of the sample suction capsule is provided with a connecting tube extending toward the diluent extraction capsule, the diluent extraction capsule is provided with a plug extending toward the sample suction capsule, and the plug is inserted into the connecting tube through interference fit.

[0008] Furthermore, the sample aspiration tube includes a curved tube section extending along the peripheral wall of the diluent extraction capsule. The peripheral wall of the diluent extraction capsule is provided with a notch ring. The notch ring forms a tube clamping groove for the curved tube section to be embedded. The tube clamping groove has a first notch for the curved tube section to be embedded.

[0009] Furthermore, a plurality of the notch rings are arranged along the extending direction of the curved pipe section.

[0010] Furthermore, the sample aspiration tube includes a vertical tube section arranged side by side with the diluent extraction tube, and the vertical tube section is connected to the diluent extraction tube via a limiting device.

[0011] Furthermore, the limiting device includes a connecting block connected to the outer peripheral wall of the diluent extraction pipe, and arms that embrace the vertical pipe section are provided on both sides of the connecting block.

[0012] Furthermore, there is a gap between the two arms for the vertical pipe section to be embedded, and the width of the gap is smaller than the diameter of the vertical pipe section.

[0013] Furthermore, a plurality of the connecting blocks and the holding arms are arranged along the diluent extraction pipe.

[0014] Furthermore, the sample suction capsule and the sample suction tube are integrally formed, and the diluent extraction capsule and the diluent extraction tube are integrally formed.

[0015] Furthermore, the opening of the sample suction cavity at one end away from the sample suction capsule is narrowed outwards.

[0016] The utility model has the following beneficial effects:

[0017] The dual-chamber, dual-capsule design enables integrated operations of sample aspiration and diluent extraction, avoiding the inconvenience of repeated switching when using a single-chamber dropper, simplifying the operating process, reducing the number of operating steps, and thus significantly improving the efficiency of blood testing. Both the sample aspiration tube and the diluent extraction tube are provided with scales, which allows the user to more accurately control the required amount when aspirating blood samples and diluents, ensuring the accuracy of the dilution ratio, which directly affects the accuracy of the test results.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 yes Figure 1 sectional view of

[0022] Figure 3 yes Figure 1 A magnified view of point A;

[0023] Figure 4 yes Figure 1 Magnified view of point B;

[0024] Figure 5 yes Figure 2 Enlarged view of point C;

[0025] Figure 6 yes Figure 1 Schematic diagram of the decomposed state structure;

[0026] Figure 7 yes Figure 6 Enlarged view of point D.

[0027] Legend:

[0028] Sample suction capsule 100, first deformation cavity 110, connecting tube 120;

[0029] Sample aspiration tube 200, sample aspiration chamber 210, curved tube section 220, vertical tube section 230;

[0030] The diluent extraction capsule 300, the second deformation cavity 310, the plug post 320, the notch ring 330, the tube clamping groove 331, and the first notch 332;

[0031] diluent extraction tube 400, diluent extraction chamber 410;

[0032] Connecting block 500 , arm 510 , and gap 511 . DETAILED DESCRIPTION

[0033] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0037] Please refer to Figure 1 and Figure 2 A double-chamber sampling dropper in a preferred embodiment of the present invention includes a sample suction capsule 100, a sample suction tube 200, a diluent extraction capsule 300, and a diluent extraction tube 400.

[0038] The sample collection capsule 100 has an elastically contractible first deformable cavity 110. One end of a sample collection tube 200 is connected to the sample collection capsule 100. The sample collection tube 200 includes a sample collection cavity 210 communicating with the first deformable cavity 110. The sample collection cavity 210 is located away from an opening at one end of the sample collection capsule 100, allowing blood samples to be drawn from this opening. It should be understood that the first deformable cavity 110 has only one opening communicating with the outside: the opening at the end of the sample collection cavity 210. This allows the sample collection capsule 100 to be squeezed, causing the first deformable cavity 110 to shrink and some air to be expelled. The end of the sample collection tube 200 is then inserted into the blood, and the sample collection capsule 100 is released, allowing the sample collection capsule 100 to recover its deformation and the volume of the first deformable cavity 110 to be restored, thereby drawing blood into the sample collection cavity 210.

[0039] The diluent extraction capsule 300 is connected to the sample aspiration capsule 100 and includes an elastically contractible second deformable cavity 310. One end of a diluent extraction tube 400 is connected to the diluent extraction capsule 300. The diluent extraction cavity 410 is disposed distally from an opening at one end of the diluent extraction capsule 300, allowing diluent to be drawn from this opening. It should be understood that the second deformable cavity 310 has only one opening, the opening at the end of the diluent extraction cavity 410, that communicates with the outside. Therefore, squeezing the diluent extraction capsule 300 can reduce the size of the second deformable cavity 310 and expel some air. Subsequently, the end of the diluent extraction tube 400 is inserted into blood, and the diluent extraction capsule 300 is released, allowing the diluent extraction capsule 300 to recover its deformation and the volume of the second deformable cavity 310 to return to normal, allowing blood to be drawn into the diluent extraction cavity 410. The outer walls of the sample aspiration tube (200) and the diluent extraction tube (400) are both provided with scales.

[0040] The present invention provides a dual-chamber sampling dropper in a preferred embodiment. The dual-chamber design (a first deformable chamber 110 and a second deformable chamber 310) and dual capsules (a sample aspiration capsule 100 and a diluent extraction capsule 300) achieve integrated sample aspiration and diluent extraction operations, avoiding the inconvenience of repeated switching required when using a single-chamber dropper. This simplifies the operating process, reduces the number of operating steps, and significantly improves the efficiency of blood testing. Both the sample aspiration tube 200 and the diluent extraction tube 400 are provided with scales, allowing the user to more accurately control the required amounts of blood sample and diluent when aspirating, thereby ensuring the accuracy of the dilution ratio and directly affecting the accuracy of the test results.

[0041] Reference Figure 2 In some embodiments of the present invention, the sample suction capsule 100 is arranged above the diluent extraction capsule 300, and the outer wall of the bottom of the sample suction capsule 100 is provided with a connecting tube 120 extending toward the diluent extraction capsule 300. The diluent extraction capsule 300 is provided with a plug post 320 extending toward the sample suction capsule 100. The plug post 320 is inserted into the connecting tube 120 through an interference fit, thereby realizing the connection between the sample suction capsule 100 and the diluent extraction capsule 300, so that the positions of the two are relatively stable.

[0042] Reference Figure 2 、 Figure 3 and Figure 7In some embodiments of the present invention, the sample aspirating tube 200 includes a curved tube section 220 extending along the peripheral wall of the diluent extraction capsule 300. The sample aspirating tube 200 is passed around the diluent extraction capsule 300 through the curved tube section 220. The peripheral wall of the diluent extraction capsule 300 is provided with a notch ring 330. The notch ring 330 is formed with a tube clamping groove 331 for the curved tube section 220 to be inserted. The tube clamping groove 331 has a first notch 332 for the curved tube section 220 to be inserted, and the curved tube section 220 is clamped by the tube clamping groove 331. 220 is limited, so that the curved pipe section 220 is guided and limited. It can be understood that the width of the first notch 332 is smaller than the diameter of the curved pipe section 220, thereby achieving stable limitation of the curved pipe section 220. Only when subjected to a large external force will the curved pipe section 220 be separated from the pipe-clamping groove 331. During installation, the curved pipe section 220 can be contracted and deformed and the first notch 332 can be expanded and deformed so that the curved pipe section 220 can pass through the first notch 332 and be clamped into the pipe-clamping groove 331, thereby successfully completing the installation.

[0043] In a further embodiment of the present invention, a plurality of notch rings 330 are arranged along the extension direction of the curved tube section 220 , thereby achieving multi-position limiting, making the connection between the curved tube section 220 and the diluent extraction capsule 300 more stable.

[0044] Reference Figure 2 and Figure 6 In some embodiments of the present invention, the sample aspiration tube 200 includes a vertical tube section 230 arranged side by side with the diluent extraction tube 400. The vertical tube section 230 and the diluent extraction tube 400 are connected by a limiting device, so that the vertical tube section 230 and the diluent extraction tube 400 are stably arranged side by side. When dripping the blood sample and diluent, the vertical tube section 230 and the liquid outlet at the bottom of the diluent extraction tube 400 are conveniently located at the same position, and there is no need to adjust the position of the mobile dropper.

[0045] Reference Figure 4 In some embodiments of the present invention, the limiting device includes a connecting block 500 connected to the outer peripheral wall of the diluent extraction pipe 400. Arms 510 are provided on both sides of the connecting block 500, which embrace the vertical pipe section 230. The arms 510 on both sides limit the connection of the vertical pipe section 230, ensuring that the vertical pipe section 230 and the diluent extraction pipe 400 extend side by side and maintain a stable relative position. It is understood that multiple connecting blocks 500 and arms 510 can be arranged along the diluent extraction pipe 400 to achieve multi-position connection, allowing the vertical pipe section 230 to be connected to the diluent extraction pipe 400 at multiple locations, making the connection between the two more stable.

[0046] Reference Figure 7In some embodiments of the present invention, a gap 511 is provided between the two arms 510 for the vertical pipe section 230 to be inserted, so that the vertical pipe section 230 can be inserted between the two arms 510 through the gap 511. If the width of the gap 511 is smaller than the diameter of the vertical pipe section 230, the vertical pipe section 230 can be well limited. During installation, the elastic contraction of the vertical pipe section 230 and the elastic expansion of the two arms 510 can be utilized, so that the vertical pipe section 230 can pass through the gap 511 and be inserted between the two arms 510.

[0047] In some embodiments of the present invention, the sample aspiration capsule 100 and the sample aspiration tube 200 are integrally formed, and the diluent extraction capsule 300 and the diluent extraction tube 400 are integrally formed, thereby reducing the number of parts and assembly steps, lowering costs, and providing a more stable integral connection. Specifically, the sample aspiration capsule 100, the sample aspiration tube 200, the diluent extraction capsule 300, and the diluent extraction tube 400 can be made of a transparent soft plastic material having a certain degree of elastic deformation, thereby enabling the extraction of blood and diluent by squeezing and releasing the sample aspiration capsule 100 and the diluent extraction capsule 300. For example, the material can be polyethylene (PE), polypropylene (PP), or high-performance polyolefin thermoplastic elastomer (TPE).

[0048] Reference Figure 5 In some embodiments of the present invention, the opening of the sample aspiration chamber 210 at one end away from the sample aspiration capsule 100 is narrowed outward, thereby making the bottom opening of the sample aspiration chamber 210 smaller. The liquid in the sample aspiration chamber 210 will not fall out due to its own gravity. The liquid in the sample aspiration chamber 210 can only be discharged by squeezing the sample aspiration capsule 100.

[0049] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A double-chamber sampling dropper, characterized in that: include: A sample suction capsule (100) having a first deformation cavity (110) capable of elastic contraction; A sample aspiration tube (200) is connected to the sample aspiration capsule (100) at one end, the sample aspiration tube (200) is provided with a sample aspiration cavity (210) communicating with the first deformation cavity (110), and the sample aspiration cavity (210) is provided with an opening at one end away from the sample aspiration capsule (100); A diluent extraction capsule (300) is connected to the sample aspiration capsule (100) and has a second deformation cavity (310) capable of elastic contraction; a diluent extraction tube (400), one end of which is connected to the diluent extraction capsule (300); the diluent extraction tube (400) is provided with a diluent extraction cavity (410) communicating with the second deformation cavity (310); the diluent extraction cavity (410) is provided with an opening at one end away from the diluent extraction capsule (300); The outer walls of the sample aspiration tube (200) and the diluent extraction tube (400) are both provided with scales.

2. The double-chamber sampling dropper according to claim 1, characterized in that: The sample suction capsule (100) is arranged above the diluent extraction capsule (300); a connecting tube (120) extending toward the diluent extraction capsule (300) is provided on the outer wall of the bottom of the sample suction capsule (100); the diluent extraction capsule (300) is provided with a plug post (320) extending toward the sample suction capsule (100); the plug post (320) is inserted into the connecting tube (120) through interference fit.

3. The double-chamber sampling dropper according to claim 1, characterized in that: The sample aspiration tube (200) comprises a curved tube section (220) extending along the peripheral wall of the diluent extraction capsule (300); a notch ring (330) is provided on the peripheral wall of the diluent extraction capsule (300); the notch ring (330) is formed with a tube clamping groove (331) for the curved tube section (220) to be embedded; the tube clamping groove (331) has a first notch (332) for the curved tube section (220) to be embedded.

4. The double-chamber sampling dropper according to claim 3, characterized in that: A plurality of the notch rings (330) are arranged along the extension direction of the curved pipe section (220).

5. The double-chamber sampling dropper according to claim 1, characterized in that: The sample aspiration tube (200) comprises a vertical tube section (230) arranged side by side with the diluent extraction tube (400), and the vertical tube section (230) and the diluent extraction tube (400) are connected via a limiting device.

6. The double-chamber sampling dropper according to claim 5, characterized in that: The limiting device comprises a connecting block (500) connected to the outer peripheral wall of the diluent extraction pipe (400), and arms (510) embracing the vertical pipe section (230) are provided on both sides of the connecting block (500).

7. The double-chamber sampling dropper according to claim 6, characterized in that: A gap (511) is provided between the two arms (510) for the vertical pipe section (230) to be embedded, and the width of the gap (511) is smaller than the diameter of the vertical pipe section (230).

8. The double-chamber sampling dropper according to claim 6, characterized in that: A plurality of the connecting blocks (500) and the holding arms (510) are arranged along the diluent extraction pipe (400).

9. The double-chamber sampling dropper according to claim 1, characterized in that: The sample suction capsule (100) and the sample suction tube (200) are integrally formed, and the diluent extraction capsule (300) and the diluent extraction tube (400) are integrally formed.

10. The double-chamber sampling dropper according to claim 1, characterized in that: The opening of the sample suction chamber (210) at one end away from the sample suction capsule (100) is narrowed outward.

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