Medical examination sampling device

Abstract

The utility model provides a medical examination sampling device which comprises a liquid storage pipe, a first clamping groove and a second clamping groove are formed in the top of the liquid storage pipe, a connecting rod is slidably connected in a first limiting ring, and the side end face of a second limiting ring is in threaded connection with the inner side wall of the second clamping groove. A piston is slidably connected to the inner side wall of the liquid storage pipe, and the end, away from the second limiting ring, of the connecting rod is fixedly connected with the top of the piston. By arranging the first clamping groove, the second clamping groove, the first limiting ring and the second limiting ring, convenience of mounting and dismounting of the connecting rod and the piston is improved, the threaded column is rotated to drive the limiting frame to move up and down, and therefore the moving distance of the connecting rod is limited through the limiting frame; and by arranging a mounting groove and a connector, liquid suction needle tubes of different sizes can be replaced according to actual needs.

Description

Technical Field

[0001] The utility model belongs to the technical field of chlorinated polyethylene dryers, and more specifically relates to a medical inspection sampling device. Background Art

[0002] Medical testing is a discipline that uses modern physical and chemical methods and means to conduct medical diagnosis. It mainly studies how to provide a basis for clinical diagnosis and treatment through laboratory technology and medical instruments and equipment. Through systematic study, we will understand how to identify a person's blood type, determine whether a person is anemic, whether the liver function is normal, etc. The sampling device is an indispensable equipment for testing.

[0003] The existing medical test sampling device uses a connecting rod to drive a piston to move inside a liquid storage tube, thereby sucking the liquid to be tested through a liquid suction needle. However, the liquid suction needle needs to control the amount of suction according to the user when sucking the liquid, resulting in large errors in the suction. Therefore, a medical test sampling device is needed. Summary of the Invention

[0004] The purpose of the utility model is to provide a medical test sampling device, which is conducive to enhancing the convenience of installing and disassembling a connecting rod and a piston.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a medical test sampling device, including a liquid storage tube, a first clamping groove and a second clamping groove are opened on the top of the liquid storage tube, the first clamping groove is internally movably connected with a first limiting ring, the first limiting ring is internally slidably connected with a connecting rod, the circumferential surface of the connecting rod is slidably connected with the second limiting ring, the side end face of the second limiting ring is threadedly connected with the inner side wall of the second clamping groove, and the bottom end of the second limiting ring is fitted with the top of the first limiting ring, the inner side wall of the liquid storage tube is slidably connected with a piston, the end of the connecting rod away from the second limiting ring is fixedly connected to the top of the piston, the circumferential surface of the second limiting ring is fixedly connected to the limiting block, the top of the limiting block is fixedly connected with a fixing column, the internal thread of the fixing column is connected with a threaded column, and the end of the threaded column away from the fixing column is rotatably connected to the limiting frame.

[0006] Optionally, there are two limit blocks, which are symmetrically distributed.

[0007] Optionally, a threaded groove is provided on the top of the connecting rod, a threaded rod is threadedly connected to the inner side wall of the threaded groove, an anti-slip pattern is provided on the top of the threaded rod, and the bottom of the limit frame fits with the top of the threaded rod.

[0008] Optionally, the inner side wall of the liquid storage tube is fixedly connected to a fixing seat, and a mounting groove is provided at the bottom of the fixing seat.

[0009] Optionally, a connector is threadedly connected to the inner side wall of the mounting groove, and a pipette is fixedly connected to the bottom of the connector.

[0010] Optionally, a return spring is sleeved on the circumferential surface of the connecting rod, and one end of the return spring away from the second limiting ring is in contact with the bottom of the top end of the threaded rod.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. Compared with the prior art, a first clamping groove, a second clamping groove, a first limiting ring and a second limiting ring are provided, the first limiting ring is engaged with the first clamping groove, and then the second limiting ring is rotated to be threadedly connected with the second clamping groove, thereby fixing the first limiting ring, and then facilitating the sliding of the connecting rod inside the first limiting ring and the second limiting ring, which is beneficial to improving the convenience of installing and disassembling the connecting rod and the piston, and facilitating the cleaning of the inside of the liquid storage tube. By rotating the threaded column, the threaded column drives the limiting frame to move up and down, thereby using the limiting frame to limit the moving distance of the connecting rod, which is beneficial to improving the accuracy of liquid absorption.

[0013] 2. Compared with the prior art, by providing a mounting groove and a connector, the mounting groove is used to connect and install the connector, thereby facilitating quick replacement of the pipette needle, which is beneficial for replacing pipette needles of different sizes according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 For the utility model Figure 2 Enlarged view of point B in the middle.

[0019] 1. Liquid storage tube; 2. First card slot; 3. First limiting ring; 4. Second card slot; 5. Second limiting ring; 6. Limit block; 7. Piston; 8. Connecting rod; 9. Threaded rod; 10. Return spring; 11. Mounting slot; 12. Connector; 13. Liquid aspiration needle; 14. Fixed column; 15. Threaded column; 16. Limit frame. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0021] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0024] Reference Figure 1-4Now, a medical test sampling device provided by an embodiment of the present invention is described. A medical test sampling device includes a liquid storage tube 1, a first card slot 2 and a second card slot 4 are opened on the top of the liquid storage tube 1, the first card slot 2 is movably connected to the inside of the first card slot 2, the first card slot 3 is slidably connected to the inside of the connecting rod 8, the circumferential surface of the connecting rod 8 is slidably connected to the second card slot 5, the side end face of the second card slot 4 is threadedly connected to the inner wall of the second card slot 4, and the bottom end of the second card slot 5 is fitted with the top of the first card slot 3, the inner side wall of the liquid storage tube 1 is slidably connected to the piston 7, the end of the connecting rod 8 away from the second card slot 5 is fixedly connected to the top of the piston 7, the circumferential surface of the second card slot 5 is fixedly connected to the limiting block 6, the top of the limiting block 6 is fixedly connected to the fixing column 14, the internal thread of the fixing column 14 is connected to the threaded column 15, the outer surface of the threaded column 15 is provided with a scale, which is convenient for controlling the amount of liquid absorbed, and the end of the threaded column 15 away from the fixing column 14 is rotatably connected to the limiting frame 16. The first limiting ring 3 is engaged with the first slot 2, and then the second limiting ring 5 is rotated to be threadedly connected with the second slot 4, so as to fix the first limiting ring 3, and then the connecting rod 8 is facilitated to slide inside the first limiting ring 3 and the second limiting ring 5, which is beneficial to improving the convenience of installation and disassembly of the connecting rod 8 and the piston 7, and facilitating the cleaning of the inside of the liquid storage tube 1, thereby improving the utilization rate of the device and avoiding waste of resources. The connecting rod 8 and the piston 7 are limited by the first limiting ring 3, so as to facilitate limiting the displacement distance of the connecting rod 8, and avoid the piston 7 from being pulled out due to operational error, thereby causing liquid to spill. By rotating the threaded column 15, the threaded column 15 drives the limiting frame 16 to move up and down, so that the limiting frame 16 is used to limit the movement distance of the connecting rod 8, which is beneficial to improving the accuracy of liquid absorption.

[0025] The circumferential surface of the second limiting ring 5 is fixedly connected to the limiting blocks 6, and the number of the limiting blocks 6 is set to two and symmetrically distributed. The limiting blocks 6 are used to facilitate the rotation of the second limiting ring 5.

[0026] The top of the connecting rod 8 is provided with a threaded groove, the inner side wall of which is threadedly connected to a threaded rod 9, and the top of the threaded rod 9 is provided with anti-slip grooves. The threaded rod 9 is connected to the connecting rod 8, so that the connecting rod 8 can be pushed by the threaded rod 9, thereby driving the piston 7 to move.

[0027] The inner side wall of the liquid storage tube 1 is fixedly connected to a fixing base, and a mounting groove 11 is formed at the bottom of the fixing base.

[0028] The inner side wall of the mounting groove 11 is threadedly connected with a connector 12, and the bottom of the connector 12 is fixedly connected with a liquid suction needle tube 13. Utilize the mounting groove 11 to connect and install the connector 12, thereby being convenient to quickly replace the liquid suction needle tube 13, which is conducive to replacing the liquid suction needle tube 13 of different sizes according to actual needs.

[0029] A return spring 10 is sleeved on the circumference of the connecting rod 8, and the end of the return spring 10 away from the second limiting ring 5 is in contact with the top and bottom of the threaded rod 9. The return spring 10 pushes the threaded rod 9, thereby facilitating the upward displacement of the piston 7 via the connecting rod 8, and the liquid to be tested is sampled using the aspiration needle 13, which is then aspirated into the interior of the liquid storage tube 1.

[0030] Working principle: The first limiting ring 3 is engaged with the first slot 2, and then the second limiting ring 5 is rotated to be threadedly connected with the second slot 4, so as to fix the first limiting ring 3, thereby facilitating the sliding of the connecting rod 8 inside the first limiting ring 3 and the second limiting ring 5, which is conducive to improving the convenience of installation and disassembly of the connecting rod 8 and the piston 7, facilitating cleaning the inside of the liquid storage tube 1, thereby improving the utilization rate of the device and avoiding waste of resources. The first limiting ring 3 is used to limit the connecting rod 8 and the piston 7, so as to facilitate limiting the displacement distance of the connecting rod 8, and avoid the piston 7 from being pulled out due to operation error, thereby causing liquid to spill. By rotating the threaded column 15, the threaded column 15 drives the limiting frame 16 to move up and down, so that the limiting frame 16 is used to limit the moving distance of the connecting rod 8, which is conducive to improving the accuracy of liquid absorption, and the connecting head 12 is connected and installed using the mounting groove 11, so as to facilitate quick replacement of the aspiration needle tube 13, which is conducive to replacing aspiration needle tubes 13 of different sizes according to actual needs.

[0031] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A medical test sampling device, comprising a liquid storage tube (1), characterized in that: The top of the liquid storage tube (1) is provided with a first clamping groove (2) and a second clamping groove (4); the first clamping groove (2) is movably connected to the inside of a first limiting ring (3); the first limiting ring (3) is slidably connected to the inside of a connecting rod (8); the circumferential surface of the connecting rod (8) is slidably connected to a second limiting ring (5); the side end surface of the second limiting ring (5) is threadedly connected to the inner side wall of the second clamping groove (4), and the bottom end of the second limiting ring (5) is in contact with the top of the first limiting ring (3). The inner side wall of the liquid storage tube (1) is slidably connected to a piston (7), the end of the connecting rod (8) away from the second limiting ring (5) is fixedly connected to the top of the piston (7), the circumferential surface of the second limiting ring (5) is fixedly connected to the limiting block (6), the top of the limiting block (6) is fixedly connected to a fixing column (14), the internal thread of the fixing column (14) is connected to a threaded column (15), and the end of the threaded column (15) away from the fixing column (14) is rotatably connected to the limiting frame (16).

2. A medical test sampling device according to claim 1, characterized in that: The number of the limit blocks (6) is two and they are symmetrically distributed.

3. A medical test sampling device according to claim 1, characterized in that: A threaded groove is provided on the top of the connecting rod (8), a threaded rod (9) is threadedly connected to the inner side wall of the threaded groove, an anti-slip pattern is provided on the top of the threaded rod (9), and the bottom of the limiting frame (16) is in contact with the top of the threaded rod (9).

4. A medical test sampling device according to claim 1, characterized in that: The inner side wall of the liquid storage tube (1) is fixedly connected to a fixing seat, and a mounting groove (11) is provided at the bottom of the fixing seat.

5. A medical test sampling device according to claim 4, characterized in that: The inner side wall of the installation groove (11) is threadedly connected to a connector (12), and the bottom of the connector (12) is fixedly connected to a liquid suction needle tube (13).

6. A medical test sampling device according to claim 1, characterized in that: A return spring (10) is sleeved on the circumferential surface of the connecting rod (8), and one end of the return spring (10) away from the second limiting ring (5) is in contact with the top and bottom of the threaded rod (9).

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