WO2017166694A1

WO2017166694A1 - Blood gas biochemical reagent package

Info

Publication number: WO2017166694A1
Application number: PCT/CN2016/097628
Authority: WO
Inventors: 朱志华; 王继华
Original assignee: 广州万孚生物技术股份有限公司
Priority date: 2016-03-31
Filing date: 2016-08-31
Publication date: 2017-10-05
Also published as: CN106483277A

Abstract

A blood gas biochemical reagent package, comprising: a rotary switch assembly (1), a liquid storage device (2), a sample intake device (3) and a gas intake device (4). The rotary switch assembly (1) comprises: a fixed valve body (10), provided with a first pipe port (101) in communication with the liquid storage device (2), a second pipe port (102) in communication with the sample intake device (3), and a third pipe port (103) in communication with the gas intake device (4); and a rotary body (11) provided with a connection pipe. The rotary body (11) is provided within the fixed valve body (10) and is rotatable relative to the fixed valve body (10) to implement the communication between the first pipe port (101) and the second pipe port (102), or the communication between the second pipe port (102) and the third pipe port (103), or the turning off of the second pipe port (102). The blood gas biochemical reagent package uses the rotary switch assembly (1) to control the turning on/off of different pipes. There is no need for pressing or releasing rubber pipes, thereby the hidden danger of pipe blockage and liquid leakage is not present.

Description

Blood gas biochemical reagent kit

Technical field

The invention relates to the field of medical instruments, in particular to a blood gas biochemical reagent package.

Background technique

The blood gas biochemical reagent kit is widely used in medical equipment such as blood gas analyzers and biochemical analyzers, and the blood gas biochemical reagent package stores a calibration liquid for calibration of the electrodes to be tested. In order to ensure the stability of the calibration solution components, it must be well sealed.

There are many kinds of blood gas biochemical reagents commonly available on the market, such as the reagent bag with a hose pipe valve mechanism of application number 201320880376.7, which is mainly composed of a casing, a hose, a hose valve and the like. The hose valve can be inserted around the housing assembly position, so that the hook portion is stuck into the card hole, and the casing and the rubber hose valve are pressed tightly to realize the closing of the rubber tube; the hook portion is separated from the card hole, and the casing and the rubber hose valve are relaxed. For the compression of the hose, the hose relies on its own elasticity to lift the hose valve to achieve the conduction of the hose. Although this can realize the on-off control of the hose, it has the following disadvantages:

(1) Hookage caused by bad rebound: The reagent package is in the process of transportation and storage. In order to prevent the leakage of the calibration liquid and the change of the gas concentration in the calibration liquid, the hose must be pressed for a long time by the hose valve, and the hose is pressed for a long time. Easy to bond together and not rebound, causing blockage of pipes;

(2) The pressing action is unreliable and is prone to leakage: after the hose valve is pressed tightly, the hose cross section cannot be completely crushed, and liquid leakage is likely to occur.

Summary of the invention

Based on this, the present invention overcomes the defects of the prior art and provides a blood gas biochemical reagent package with a simple structure, which effectively avoids the occurrence of pipe clogging and liquid leakage.

Its technical solutions are as follows:

A blood gas biochemical reagent package comprising a rotary switch assembly, a liquid storage device, a sample introduction device and an air intake device, the rotary switch assembly comprising a first nozzle provided in communication with the liquid storage device, and the injection a second nozzle communicating with the device, a fixed valve body of the third nozzle communicating with the air inlet device, and a rotating body provided with a connecting pipe, the rotating body being disposed inside the fixed valve body and rotatable relative to the fixed valve body to achieve communication between the first nozzle and the second nozzle, or the first The second nozzle is in communication with the third nozzle or the second nozzle is closed.

In one embodiment, the blood gas biochemical reagent kit further includes a housing having a placement cavity fixed in the placement chamber, the housing being provided with a rotary handle coupled to the rotating body.

In one of the embodiments, a status indicator is provided on the outer casing at a position adjacent to the rotary handle.

In one embodiment, the liquid storage device is a calibration liquid bag disposed in the placement chamber, and the calibration liquid bag is provided with a liquid discharge pipe, and the liquid discharge pipe is sleeved on the first nozzle.

In one embodiment, the blood gas biochemical reagent kit further includes a support base fixed to the outer casing, the sample introduction device includes a sample needle and a sample tube, and the sample needle is fixed to the support base The sample tube is sleeved on the needle and the other end is sleeved on the second nozzle.

In one embodiment, the air intake device is an air tube that is sleeved on the third nozzle, and the air tube is in communication with the atmosphere.

In one of the embodiments, the fixed valve body is in an interference fit with the rotating body.

In one of the embodiments, the outer casing includes a front casing and a rear casing, and the front casing is detachably coupled to the rear casing.

The advantages or principles of the foregoing technical solutions are described below:

The blood gas biochemical reagent package, when the rotary switch assembly is in a state in which the first nozzle and the second nozzle are in communication, the liquid storage device is in communication with the sample introduction device, and the calibration liquid can be extracted; when the rotary switch assembly is in the second tube When the port and the third nozzle are in communication, the sample introduction device is in communication with the air intake device to perform air extraction; when the rotary switch assembly is in the state in which the second nozzle is closed, the sample introduction device is closed for the test card to be performed. Extract the test solution action. The blood gas biochemical reagent package utilizes a rotary switch assembly to realize on-off control of different pipes without pressing and loosening the hose action, and there is no hidden danger of pipe blockage and liquid leakage.

DRAWINGS

1 is a schematic exploded view of a blood gas biochemical reagent pack according to an embodiment of the present invention;

2 is a schematic structural view of a blood gas biochemical reagent package (removing the front shell) according to an embodiment of the present invention;

3 is a schematic cross-sectional view showing a blood gas biochemical reagent package according to an embodiment of the present invention;

4 is a schematic view of the rotary switch assembly in a first state according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of the rotary switch assembly in a second state according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic diagram of the rotary switch assembly in a third state according to an embodiment of the invention.

Description of the reference signs:

1, rotary switch assembly, 2, liquid storage device, 3, sample introduction device, 4, air intake device (air tube), 5, front shell, 6, rear shell, 7, support seat, 10, fixed valve body, 11 , rotating body, 20, calibration liquid bag, 21, liquid outlet tube, 30, injection needle, 31, sample tube, 50, rotating handle, 101, first nozzle, 102, second nozzle, 103, The third nozzle, 110, connects the pipe.

detailed description

The embodiments of the present invention are described in detail below:

As shown in FIG. 1 to FIG. 6 , the blood gas biochemical reagent package of the embodiment includes a rotary switch assembly 1 , a liquid storage device 2 , a sample injection device 3 , and an air intake device 4 , and the rotary switch assembly 1 includes a fixed valve body. And the rotating body 11 is disposed inside the fixed valve body 10 and rotatable relative to the fixed valve body 10. The rotating body 11 is provided with a connecting pipe 110, and the fixed valve body 10 is provided with a first nozzle 101 communicating with the liquid storage device 2, a second nozzle 102 communicating with the sample introduction device 3, and a third nozzle 103 communicating with the intake device 4, rotating the rotating body 11 to rotate the switch assembly 1 is in the first state, the second state, or the third state:

among them,

The first state: the second nozzle 102 communicates with the first nozzle 101 through the connecting pipe 110;

The second state: the second nozzle 102 and the third nozzle 103 are connected by a connecting pipe 110;

The third state: the second nozzle 102 and the first nozzle 101 are both closed.

The blood gas biochemical reagent package, when the rotary switch assembly 1 is in the first state, the liquid storage device 2 is in communication with the sample introduction device 3, and the calibration liquid can be extracted; when the rotary switch assembly 1 is in the second state When the sampling device 3 is in communication with the air intake device 4, air can be extracted; when the rotary switch assembly 1 is in the third state, the second nozzle 102 is closed, that is, the sample introduction device 3 is closed, so that the test card is extracted. Test fluid action. The liquid in the liquid storage device 2 and the sample introduction device 3 is blocked to prevent interference between the calibration liquid and the test liquid. The blood gas biochemical reagent package utilizes the rotary switch assembly 1 to realize the on-off control of different pipes without pressing and loosening the hose action, and there is no hidden danger of the pipeline blockage, and at the same time, when the rotary switch assembly 1 is in the third state, the first nozzle 101 is effectively closed. To prevent leakage of the calibration solution. Preferably, the fixed valve body 10 is interference-fitted with the rotating body 11 to directly close the pipe by the wall surface of the rotating body 11.

In this embodiment, the blood gas biochemical reagent package further includes a housing having a placement cavity, the fixed valve body 10 is fixed in the placement cavity, and the housing is provided with a rotary handle 50 connected to the rotating body 11 and rotated The handle 50 is exposed on the outer casing, and when the rotary handle 50 is rotated during use, the rotary switch assembly 1 can be adjusted to different states, which is convenient to use.

The liquid storage device 2 of the embodiment is a calibration liquid bag 20 disposed in the placement cavity, and the outer casing has the function of protecting the calibration liquid bag 20 to prevent the calibration liquid bag 20 from being contaminated. The calibration liquid bag 20 An outlet pipe 21 is disposed thereon, and the outlet pipe 21 is sleeved on the first nozzle 101. The outer casing includes a front casing 5 and a rear casing 6, and the front casing 5 and the rear casing 6 are detachably connected to facilitate installation of the calibration liquid bag 20. In the present embodiment, the front case 5 and the rear case 6 are fixed by screws. Preferably, a status indicator (not shown) is disposed on the outer casing near the rotating handle 50 to facilitate the user to know the current state of the rotary switch assembly 1.

In this embodiment, the blood gas biochemical reagent package further includes a support base 7, the support base 7 is fixed on the outer casing, and the sample introduction device 3 includes a sample needle 30 and a sample tube 31, and the sample needle 30 is fixed on the support base 7 and connected to the test card for conveniently providing a sample. The sample tube 31 is sleeved on the injection needle 30 at one end and sleeved on the second nozzle 102 at the other end. The air intake device 4 is an air tube 4 sleeved on the third nozzle 103. The air tube 4 communicates with the atmosphere, and directly extracts air from the atmosphere to clean the electrodes on the test card.

The blood gas biochemical reagent package described in this embodiment is used as follows:

(1) Extracting the calibration liquid: As shown in FIG. 4, the rotating body 11 is rotated by the rotating handle 50, so that the rotary switch assembly 1 is in the first state, and the calibration liquid flows from the calibration liquid bag 20 through the rotating body. 11. The injection tube 31, the injection needle 30, and finally enter the test card;

(2) Extracting air: as shown in FIG. 5, the rotating body 11 is rotated by the rotating handle 50, so that the rotary switch assembly 1 is in the second state, and air flows from the air tube 4 through the rotating body 11, the sample tube 31, Syringe 30, and finally enter the test card;

(3) The pipe is self-locking (so that the test liquid in the card sampling pipe 31 is tested): as shown in FIG. 6, the rotating body 11 is rotated by the rotating handle 50, so that the rotary switch assembly 1 is in the third state. The connecting pipe 110 is only connected to the air pipe 4, and the sample pipe 31 and the liquid outlet pipe 21 are closed by the wall surface of the rotating body 11, so that the injection pipe 31 and the liquid discharge pipe 21 are sealed.

The technical features of the above-described embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be considered as the scope of this manual.

The above-described embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

A blood gas biochemical reagent kit, comprising: a rotary switch assembly, a liquid storage device, a sample introduction device and an air intake device, the rotary switch assembly comprising a first nozzle provided in communication with the liquid storage device, and a second nozzle communicating with the sampling device, a fixed valve body of a third nozzle communicating with the air inlet device, and a rotating body provided with a communication pipe, the rotating body being disposed inside the fixed valve body and Rotating relative to the fixed valve body to achieve communication between the first nozzle and the second nozzle, or the second nozzle and the third nozzle, or closing the second nozzle.
The blood gas biochemical reagent kit according to claim 1, further comprising a housing having a placement cavity, the fixed valve body being fixed in the placement chamber, the housing being provided with a rotary handle connected to the rotating body.
The blood gas biochemical reagent kit according to claim 2, wherein a state indicator is provided on the outer casing at a position close to the rotary handle.
The blood gas biochemical reagent kit according to claim 2, wherein the liquid storage device is a calibrating liquid bag disposed in a chamber, and the calibrating liquid bag is provided with a liquid discharging tube, and the liquid discharging The sleeve is placed on the first nozzle.
The blood gas biochemical reagent kit according to claim 2, further comprising a support base fixed to the outer casing, the sample introduction device comprising a sample needle and a sample tube, the sample needle fixed On the support base, one end of the sample tube is sleeved on the injection needle, and the other end is sleeved on the second nozzle.
The blood gas biochemical reagent kit according to claim 2, wherein the air intake device is an air tube that is sleeved on the third nozzle, and the air tube is in communication with the atmosphere.
The blood gas biochemical reagent kit according to any one of claims 1 to 6, wherein the fixed valve body is in an interference fit with the rotating body.
The blood gas biochemical reagent kit according to any one of claims 2 to 6, wherein the outer casing comprises a front casing and a rear casing, and the front casing and the rear casing are detachably connected.