A device for fixing and rotating test tubes

Abstract

The invention discloses a device for fixing and rotating a test tube, comprising a test tube rotation introduction positioning mechanism, a test tube fixing mechanism, a support spring, and a pressing sheet, wherein the test tube rotation introduction positioning mechanism is provided with a positioning cap for positioning the test tube opening, and the test tube positioning mechanism is used to fix the test tube. The invention has the beneficial effect that multiple test tubes can be fixed at the same time, and one of the test tubes can be positioned as needed, without repeatedly taking and placing the test tube, thereby simplifying the sampling process of the liquid sample.

Description

Technical Field

[0001] The invention relates to a device for fixing and rotating a test tube for collecting liquid samples, in particular to a device for fixing and rotating a test tube for collecting cerebrospinal fluid samples, and belongs to the field of medical equipment. Background Art

[0002] Collecting liquid samples is a common procedure in clinical treatment. For example, tests on cerebrospinal fluid, blood, urine, etc. all require collecting liquid samples from the human body.

[0003] Among them, collecting cerebrospinal fluid samples is a routine diagnostic and treatment operation in neurology. During the process, a lumbar puncture needle needs to be placed into the subarachnoid space of the spinal canal, and the cerebrospinal fluid needs to be drained through the needle and allowed to flow into a test tube for collection.

[0004] However, in the process of collecting cerebrospinal fluid samples, due to the need to test different indicators, multiple test tubes are often needed to collect cerebrospinal fluid samples. In this process, there are operations such as repeatedly taking and placing the test tubes, which is not only time-consuming and cumbersome, but also the cerebrospinal fluid is exposed for a long time, which can easily cause the risk of nosocomial infection.

[0005] Therefore, in order to solve the problems of repeatedly picking up and placing test tubes in collecting cerebrospinal fluid samples, which takes a long time to operate and easily causes the risk of medical exposure infection, a device for fixing and rotating test tubes was invented. The device can fix multiple test tubes at the same time and position one of the test tubes as needed. There is no need to repeatedly pick up and place the test tubes, thereby simplifying the sampling process of liquid samples such as cerebrospinal fluid. Summary of the invention

[0006] In view of the above problems in the prior art, the problem to be solved by the present invention is to provide a test tube fixing and rotating device that can fix multiple test tubes at the same time, avoid repeated placement of the test tubes, and facilitate clinical use.

[0007] The device for fixing and rotating a test tube is mainly characterized in that it includes: a test tube rotation introduction and positioning mechanism, a test tube fixing mechanism, a support spring, and a pressing piece, wherein the test tube rotation introduction and positioning mechanism includes a base, a fixed shaft, and is provided with a test tube positioning cap, and a plurality of buckles are provided under the fixed shaft; the test tube fixing mechanism includes a rotating shaft and a test tube fixing clamp, and the rotating shaft surrounds the fixed shaft of the test tube rotation introduction and positioning mechanism; the support spring is located below the rotating shaft and the test tube fixing clamp of the test tube fixing mechanism, and surrounds the fixed shaft of the test tube rotation introduction and positioning mechanism, and the pressing piece is provided below the support spring; the pressing piece is hollow and surrounds the fixed shaft of the test tube rotation introduction and positioning mechanism, and the support spring is provided above the pressing piece, and the buckle of the fixed shaft is provided below.

[0008] The device for fixing and rotating a test tube is characterized in that the outer surface of the test tube positioning cap of the test tube rotation introduction positioning mechanism is provided with threads, and a liquid inlet channel is provided inside the test tube positioning cap.

[0009] The device for fixing and rotating test tubes is characterized in that the number of test tube fixing clamps of the test tube fixing mechanism is consistent with the number of test tubes that need to be fixed and rotated. Preferably, the number of test tube fixing clamps is three.

[0010] The method for using the device for fixing and rotating test tubes is described, taking the number of test tube fixing clamps as three as an example: first, three test tubes are placed in the test tube fixing clamps and fixed, the test tube fixing mechanism is rotated, and the rotating shaft rotates around the fixed axis until the opening of one of the test tubes is aligned with the liquid inlet channel of the test tube positioning cap, and then the device described in the present invention is connected to the integrated lumbar puncture needle through the test tube positioning cap, and cerebrospinal fluid samples are collected. When one test tube has collected enough samples, the test tube fixing mechanism is rotated to align the opening of the second test tube with the liquid inlet channel of the test tube positioning cap until all three test tubes have collected cerebrospinal fluid samples.

[0011] The integrated lumbar puncture needle is a puncture device for the subarachnoid space of the lumbar spinal canal for collecting cerebrospinal fluid samples, and a cerebrospinal fluid outflow channel is arranged at the bottom thereof, which can be connected with the test tube positioning cap of the device described in the present invention.

[0012] The device for fixing and rotating the test tube can also be used for collecting cerebrospinal fluid when a conventional lumbar puncture needle punctures the subarachnoid space of the lumbar spinal canal. The conventional lumbar puncture needle consists of an inner needle and an outer needle. After the inner needle is pulled out, a cerebrospinal fluid outflow channel can be directly established.

[0013] In the present application, unless otherwise specified, the positional relationship of each component is based on the positional relationship shown in the drawings, and the devices, instruments, components, dimensions and other conditions used are well known in the art, or can be implemented by a technician in this field based on the description of the application and the prior art.

[0014] If the description of terms in the present invention is different from the previous description in the art, the description in the present application shall prevail. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front view of the device of the present invention;

[0016] Figure 2 is an exploded view of the device of the present invention;

[0017] Figure 3 is a top view of the device of the present invention;

[0018] Figure 4is a front cross-sectional view of the device of the present invention (in a state where a test tube is connected);

[0019] Figure 5 is a schematic diagram of the device of the present invention connected to an integrated lumbar puncture needle;

[0020] The reference numerals in the figure are as follows: (1) base; (2) fixed axis; (3) test tube positioning cap; (4) liquid inlet channel; (5) rotating axis; (6) test tube fixing clamp; (7) supporting spring; (8) pressing plate; (9) test tube; (10) test tube introduction positioning mechanism; (11) test tube fixing mechanism; (12) integrated lumbar puncture needle. DETAILED DESCRIPTION

[0021] The device of the present invention will be further described below in conjunction with the accompanying drawings.

[0022] Attached Figure 1-5 The figure shows a preferred embodiment of the device of the present invention, wherein the number of the test tube fixing clamps is three, which are connected to an integrated lumbar puncture needle for use.

[0023] The method for using the device for fixing and rotating test tubes is as follows: first, three test tubes are placed in a test tube fixing clamp (6) for fixing, the test tube fixing mechanism (11) is rotated, and the rotating shaft (5) is rotated around the fixing shaft (2) until the opening of one of the test tubes (9) is aligned with the liquid inlet channel (4) of the test tube positioning cap (3), and then the device of the present invention is connected to an integrated lumbar puncture needle (12) through the test tube positioning cap (3), and cerebrospinal fluid samples are collected. When one test tube (9) has collected enough samples, the test tube fixing mechanism (11) is rotated to align the opening of the second test tube (9) with the liquid inlet channel (4) of the test tube positioning cap (3), until all three test tubes (9) have collected cerebrospinal fluid samples.

[0024] The purpose of the implementation described above is to further illustrate the specific implementation of the device of the present invention, and it is not to impose any limitation on the present invention. Any simple modification, change and equivalent structural change made according to the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A device for fixing and rotating a test tube, Its characteristics are: A test tube rotation introduction positioning mechanism, a test tube fixing mechanism, a support spring, and a pressing sheet, wherein the test tube rotation introduction positioning mechanism comprises a base, a fixed shaft, and is provided with a test tube positioning cap, and a plurality of buckles are provided under the fixed shaft; the test tube fixing mechanism comprises a rotating shaft and a test tube fixing clamp, and the rotating shaft surrounds the fixed shaft of the test tube rotation introduction positioning mechanism; the support spring is located below the rotating shaft and the test tube fixing clamp of the test tube fixing mechanism, and surrounds the fixed shaft of the test tube rotation introduction positioning mechanism, and a pressing sheet is provided below the support spring; the pressing sheet is hollow and surrounds the fixed shaft of the test tube rotation introduction positioning mechanism, the support spring is provided on the top of the pressing sheet, and the buckle of the fixed shaft is provided below; the test tube positioning cap of the test tube rotation introduction positioning mechanism is provided with a thread on the outer surface, and a liquid inlet channel is provided inside the test tube positioning cap; the number of test tube fixing clamps of the test tube fixing mechanism is consistent with the number of test tubes that need to be fixed and rotated.

Images