CN219551944U

CN219551944U - Puncture sampling mechanism

Info

Publication number: CN219551944U
Application number: CN202320325331.7U
Authority: CN
Inventors: 庄雷; 庄东宁
Original assignee: JIANGSU AUDICOM MEDICAL TECHNOLOGY CO LTD
Current assignee: JIANGSU AUDICOM MEDICAL TECHNOLOGY CO LTD
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-08-18
Anticipated expiration: 2033-02-27

Abstract

The utility model discloses a puncture sampling mechanism, which comprises a puncture needle; the puncture movement assembly is used for driving the puncture needle to move along the vertical direction and enter the test tube for sampling; the horizontal movement assembly drives the puncture movement assembly and the puncture needle to move along the horizontal direction to be close to or far away from a test tube to be sampled; the test tube cap pressing assembly moves vertically downwards along with the puncture needle under the action of the puncture movement assembly, and contacts and presses a test tube cap of a test tube to be sampled before the puncture needle enters the test tube for sampling. This puncture sampling mechanism can follow the test tube automatic sampling that waits to detect through puncture motion component and horizontal motion component to after with detecting instrument adaptation, realize automated inspection, open the test tube cap with the manual work, insert test tube class through the sample introduction needle and inhale the sample and compare operating personnel's work load, simultaneously with the risk that has reduced the sample contaminated.

Description

Puncture sampling mechanism

Technical Field

The utility model relates to the technical field of medical detection instruments, in particular to a puncture sampling mechanism.

Background

On clinical test instruments, such as glycosylated hemoglobin analyzers, it is necessary to aspirate a sample from a test tube to be sampled for testing. In the prior art, a sample is generally sucked into a test tube by opening a test tube cap and inserting a sample injection needle into the test tube before testing. This step increases the workload of the operator and also increases the risk of sample contamination due to the need to open the test tube lid. There is a need for a sampling mechanism that can meet the full-automatic operation of an inspection instrument to reduce the likelihood of sample contamination.

Disclosure of Invention

The utility model aims to provide a puncture sampling mechanism which aims to solve the problems of the existing inspection instrument in the test.

In order to solve the technical problems, the utility model provides a puncture sampling mechanism, which comprises a puncture needle;

the puncture movement assembly drives the puncture needle to move along the vertical direction, and the puncture needle enters a test tube for sampling;

the horizontal movement assembly drives the puncture movement assembly and the puncture needle to move along the horizontal direction to be close to or far away from a test tube to be sampled;

the test tube cap pressing assembly moves vertically downwards along with the puncture needle under the action of the puncture movement assembly, and contacts and presses a test tube cap of a test tube to be sampled before the puncture needle enters the test tube for sampling.

Preferably, the puncture motion assembly comprises a screw motor and a screw driven by the screw motor, an adaptive screw nut is connected to the screw, the puncture needle is fixedly connected with the screw nut through a puncture arm, and the screw nut drives the puncture arm and the puncture needle to move up and down along with the rotation of the screw.

Preferably, one end of the screw rod penetrates through and is in rotary connection with the top of the lifting support, and the other end of the screw rod penetrates through and is in rotary connection with the bottom of the lifting support.

Preferably, a guide rod is fixedly arranged between the top and the bottom of the lifting support, and the puncture arm penetrates through and moves up and down along the guide rod.

Preferably, the test tube cap pressing assembly comprises a lifting rod and a cap pressing block, one end of the lifting rod penetrates through and is in sliding connection with the puncture arm, and the other end of the lifting rod is fixedly connected with the cap pressing block; the cap pressing block penetrates through and is in sliding connection with the lead screw and the guide rod respectively.

Preferably, the cap pressing block is provided with a puncture hole for the puncture needle to pass through.

Preferably, the top of the lifting rod is provided with a limiting ring, the diameter of the limiting ring is larger than that of the lifting rod, and when the puncture arm moves to the top of the lifting rod, the lifting rod and the cap pressing block are driven to ascend under the action of the limiting ring.

Preferably, a pressing component is arranged at the bottom of the lifting rod, the pressing component comprises a pressing spring and a spring support, and the spring support is sleeved on the lifting rod and is at a certain distance from the pressing cap block; the pressing spring is arranged between the spring support and the pressing cap block, and is always in a compressed state, so that the pressing cap block is pushed to descend by the pressing spring.

Preferably, the horizontal movement assembly comprises a horizontal bracket, a traversing motor and a synchronous pulley assembly, wherein the synchronous pulley assembly is fixedly connected with a lifting support of the puncture movement assembly, and the traversing motor drives the synchronous pulley assembly to move and the puncture movement assembly to horizontally move.

Preferably, the horizontal movement assembly further comprises a transverse movement guide rail, and a sliding block on the transverse movement guide rail is fixedly connected with the lifting support of the puncture movement assembly and used for guiding the puncture movement assembly to move along a straight line.

Compared with the prior art, the utility model has the beneficial effects that:

this puncture sampling mechanism can follow the test tube automatic sampling that waits to detect through puncture motion component and horizontal motion component to after with detecting instrument adaptation, realize automated inspection, open the test tube cap with the manual work, insert test tube class through the sample introduction needle and inhale the sample and compare operating personnel's work load, simultaneously with the risk that has reduced the sample contaminated.

Drawings

FIG. 1 is a schematic diagram of a lancing and sampling mechanism provided by the present utility model;

FIG. 2 is a front view of the lancing sampling mechanism provided by the present utility model;

FIG. 3 is a schematic view of the structure of the puncture moving assembly provided by the utility model in the descending process;

FIG. 4 is a cross-sectional view of the upper limit of the lancing motion assembly provided by the present utility model;

FIG. 5 is a cross-sectional view of the lower limit of the lancing motion assembly provided by the present utility model;

FIG. 6 is a schematic view of a horizontal movement assembly provided by the present utility model;

fig. 7 is a front view of a horizontal movement assembly provided by the present utility model.

In the figure: 1. a puncture needle; 2. a puncture motion assembly; 3. a horizontal movement assembly; 4. a test tube cap pressing assembly; 5. a puncture arm; 21. a lead screw motor; 22. a screw rod; 23. a lead screw nut; 24. lifting the support; 25. a guide rod; 31. a horizontal bracket; 32. a traversing motor; 33. a synchronous pulley assembly; 34 traversing the rail; 41. a lifting rod; 411. a limiting ring; 42. pressing the cap block; 421. puncturing the hole; 43. a press-coating assembly; 431. pressing and covering the spring; 432. and a spring support.

Detailed Description

The utility model is described in further detail below with reference to the attached drawings and specific examples. Advantages and features of the utility model will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, 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. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

Examples

The utility model provides a puncture sampling mechanism, referring to fig. 1 and 2, comprising a puncture needle 1; the puncture movement assembly 2 drives the puncture needle 1 to move along the vertical direction, and the puncture needle enters a test tube for sampling; the horizontal movement assembly 3 drives the puncture movement assembly 2 and the puncture needle 1 to move along the horizontal direction to be close to or far away from a test tube to be sampled; the test tube cap pressing assembly 4 moves vertically downwards along with the puncture needle 1 under the action of the puncture movement assembly 2, and contacts and presses a test tube cap of a test tube to be sampled before the puncture needle 1 enters the test tube for sampling.

Specifically, referring to fig. 3, the puncture motion assembly 2 includes a screw motor 21 and a screw 22 driven by the screw motor 21, an adaptive screw nut 23 is connected to the screw 22, the puncture needle 1 is fixedly connected to the screw nut 23 through a puncture arm 5, and the screw nut 23 drives the puncture arm 5 and the puncture needle 1 to move up and down along with rotation of the screw 22.

Further, one end of the screw 22 passes through and is rotatably connected with the top of the lifting support 24, and the other end passes through and is rotatably connected with the bottom of the lifting support 24.

In some embodiments, bearings are provided at both ends of the screw 22, and are rotatably connected to the top and bottom of the elevating support 24 through bearings.

Further, a guide rod 25 is fixedly arranged between the top and the bottom of the lifting support 24, and the puncture arm 5 passes through and moves up and down along the guide rod 25.

In some embodiments, the piercing arm 5 is slidably coupled to the guide rod 25 by a guide rod sliding sleeve.

Specifically, referring to fig. 4, the test tube cap pressing assembly 4 includes a lifting rod 41 and a cap pressing block 42, wherein one end of the lifting rod 41 passes through and is slidably connected with the puncture arm 5, and the other end is fixedly connected with the cap pressing block 42; the cap pressing block 42 passes through and is in sliding connection with the screw 22 and the guide rod 25.

Further, the cap pressing block 42 is provided with a puncture hole 421 through which the puncture needle 1 passes, and when the cap pressing block 42 contacts and presses the test tube cap of the test tube to be sampled, the puncture needle 1 passes through the puncture hole 421 and punctures the test tube cap to enter the test tube to be sampled for sampling.

Referring to fig. 5, a limit ring 411 is disposed at the top of the lifting rod 41, the diameter of the limit ring 411 is larger than that of the lifting rod 41, and the puncture arm 5 moves to the top of the lifting rod 41 to drive the lifting rod 41 and the cap pressing block 42 to rise under the action of the limit ring 411.

In this embodiment, as shown in fig. 5, a pressing component 43 is further disposed at the bottom of the lifting rod 41, where the pressing component 43 includes a pressing spring 431 and a spring support 432, and the spring support 432 is sleeved on the lifting rod 41 and is spaced from the pressing cap block 42; the pressing spring 431 is disposed between the spring support 432 and the cap pressing block 42, and the pressing spring 431 is always in a compressed state, so that the pressing spring 431 pushes the cap pressing block 42 to descend, that is, when the puncture arm 5 continues to descend until the limiting ring 411 is out of contact with the limiting ring, the pressing spring 431 pushes the cap pressing block 42 to descend to contact and press the test tube cap of the test tube to be sampled.

Specifically, referring to fig. 6 and 7, the horizontal movement assembly 3 includes a horizontal bracket 31, a traversing motor 32, and a synchronous pulley assembly 33, the synchronous pulley assembly 33 is fixedly connected with the lifting support 24 of the puncture movement assembly 2, the traversing motor 32 drives the synchronous pulley assembly 33 to move, and the puncture movement assembly 2 moves horizontally.

In some embodiments, the synchronous pulley assembly 33 includes two synchronous pulleys and a synchronous belt surrounding the two synchronous pulleys, the puncture motion assembly 2 is connected to the synchronous belt, and the puncture motion assembly 2 is driven to move horizontally by the movement of the synchronous belt.

Further, the horizontal movement assembly 3 further includes a traverse guide 34, and a slider on the traverse guide 34 is fixedly connected with the lifting support 24 of the puncture movement assembly 2, so as to guide the puncture movement assembly 2 to move along a straight line.

The above description is only illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.

Claims

1. A puncture sampling mechanism, which is characterized by comprising a puncture needle (1);

the puncture movement assembly (2) drives the puncture needle (1) to move along the vertical direction, and the puncture needle enters a test tube for sampling;

the horizontal movement assembly (3) drives the puncture movement assembly (2) and the puncture needle (1) to move along the horizontal direction to be close to or far away from a test tube to be sampled;

the test tube cap pressing assembly (4) moves vertically downwards along with the puncture needle (1) under the action of the puncture movement assembly (2), and contacts and presses a test tube cap of a test tube to be sampled before the puncture needle (1) enters the test tube for sampling.

2. A puncture sampling mechanism according to claim 1, characterized in that the puncture movement assembly (2) comprises a screw motor (21) and a screw (22) driven by the screw motor (21), wherein an adaptive screw nut (23) is connected to the screw (22), and the puncture needle (1) is fixedly connected with the screw nut (23) through a puncture arm (5), and the screw nut (23) drives the puncture arm (5) and the puncture needle (1) to move up and down along with the rotation of the screw (22).

3. A puncture sampling mechanism according to claim 2, characterized in that one end of the screw (22) passes through and is rotatably connected to the top of the lifting support (24), and the other end passes through and is rotatably connected to the bottom of the lifting support (24).

4. A lancing and sampling mechanism according to claim 3, wherein a guide rod (25) is fixedly arranged between the top and bottom of the lifting support (24), and the lancing arm (5) passes through and moves up and down along the guide rod (25).

5. A puncture and sampling mechanism according to claim 4, characterized in that the test tube cap pressing assembly (4) comprises a lifting rod (41) and a cap pressing block (42), one end of the lifting rod (41) penetrates through and is in sliding connection with the puncture arm (5), and the other end of the lifting rod is fixedly connected with the cap pressing block (42); the cap pressing block (42) respectively penetrates through and is in sliding connection with the lead screw (22) and the guide rod (25).

6. A puncture sampling mechanism according to claim 5, characterized in that the cap block (42) is provided with a puncture hole (421) through which the puncture needle (1) passes.

7. A puncture sampling mechanism according to claim 5, characterized in that a limit ring (411) is arranged at the top of the lifting rod (41), the diameter of the limit ring (411) is larger than that of the lifting rod (41), and when the puncture arm (5) moves to the top of the lifting rod (41), the limit ring (411) drives the lifting rod (41) and the cap pressing block (42) to lift.

8. A puncture and sampling mechanism according to claim 5, characterized in that a pressing component (43) is arranged at the bottom of the lifting rod (41), the pressing component (43) comprises a pressing spring (431) and a spring support (432), and the spring support (432) is sleeved on the lifting rod (41) and is at a certain distance from the pressing cap block (42); the pressing spring (431) is arranged between the spring support (432) and the pressing cap block (42), and the pressing spring (431) is always in a compressed state, so that the pressing cap block (42) is pushed to move downwards by the pressing spring (431).

9. A puncture sampling mechanism as claimed in claim 3, characterized in that the horizontal movement assembly (3) comprises a horizontal bracket (31), a traversing motor (32) and a synchronous pulley assembly (33), the synchronous pulley assembly (33) is fixedly connected with the lifting support (24) of the puncture movement assembly (2), the traversing motor (32) drives the synchronous pulley assembly (33) to move, and the puncture movement assembly (2) moves horizontally.

10. A puncture sampling mechanism according to claim 9, characterized in that the horizontal movement assembly (3) further comprises a traversing rail (34), and a sliding block on the traversing rail (34) is fixedly connected with the lifting support (24) of the puncture movement assembly (2) for guiding the puncture movement assembly (2) to move along a straight line.