CN113274020B - Blood sample collecting and taking device - Google Patents

Abstract

A blood sample collection and taking device, including a liquid storage bottle, a flow guide, an adjustment piece, a liquid taking cup, and a liquid discharge mechanism. The inside of the liquid storage bottle is provided with a negative pressure chamber that opens outward, and the head end of the liquid storage bottle There is a first rubber plug used to cover the opening of the negative pressure chamber, and the tail end of the liquid storage bottle is provided with a liquid discharge chamber that opens outward; the inside of the guide is provided with a guide channel, and the two ends of the guide are The needle interface and the first puncture tube connected to the diversion channel are respectively provided; and the guide member is movably installed on the head end of the liquid storage bottle, so that the first puncture tube has a first state away from the first rubber stopper, And puncture the first rubber plug to the second state in the negative pressure chamber; the adjustment member is installed on the head end of the liquid storage bottle and connected with the flow guide to drive the first puncture tube to switch the first state or the second state; take The liquid cup is arranged at the opening of the liquid discharge chamber and is detachably connected with the liquid storage bottle; the liquid discharge mechanism is installed in the liquid discharge chamber for discharging the blood in the negative pressure chamber into the liquid taking cup.

Description

A blood sample collection and taking device

technical field

The invention relates to the technical field of medical devices, in particular to a device for collecting and taking blood samples.

Background technique

As we all know, blood test is a common medical method for preventing and diagnosing diseases. It detects various diseases by detecting various indicators in blood samples; Stored for multiple spot checks.

Clinically, a blood collector is generally used to collect blood samples. The existing blood collector is generally composed of a liquid storage bottle, a collection hose and a medical needle. The collection hose is connected to the liquid storage bottle and the medical needle, and the medical needle is inserted into the vein of the subject to be collected. The blood sample enters the negative pressure chamber under the action of negative air pressure. At this time, the collection hose is removed from the liquid storage bottle. It can store blood samples; when it is necessary to take blood samples, use the needle of the syringe to insert into the negative pressure cavity and then take the blood samples in the bottle; although the existing blood collectors are very convenient for collecting blood samples, there are still the following shortcoming:

First, the collection hose is exposed, and it is prone to folding or winding during use, resulting in the inability of blood to pass through normally;

Second, in order to facilitate the connection of the collection hose to the negative pressure chamber, in the prior art, a puncture tube is generally installed at one end of the collection hose, and then pierced into the negative pressure chamber through the puncture tube. causing the puncture tube to puncture the user;

Third, when using a syringe to take part of the blood samples in the liquid storage bottle, because the needle end of the syringe is in frequent contact with the air first, and then extends into the liquid storage bottle, it may cause contamination of the blood samples collected in the liquid storage bottle , is not conducive to the storage of blood samples, and reduces the accuracy of blood testing.

Contents of the invention

(1) Solved technical problems

In order to solve the above problems, the present invention provides a blood sample collection and taking device, which solves the problems raised in the background technology.

(2) Technical solution

To achieve the above object, the present invention provides the following technical solutions:

A device for collecting and taking blood samples, including a liquid storage bottle, a flow guide, an adjustment member, a liquid taking cup, and a liquid discharge mechanism. The head end of the bottle is provided with a first rubber plug for covering the opening of the negative pressure chamber, and the tail end of the liquid storage bottle is provided with a liquid discharge chamber opening outward; The two ends of the guide channel are respectively provided with a needle interface connected to the guide channel and a first puncture tube; and the guide member is movably installed on the head end of the liquid storage bottle to Make the first puncture tube have a first state away from the first rubber plug, and puncture the first rubber plug to a second state in the negative pressure chamber; the adjustment member is installed in the liquid storage The head end of the bottle is driven and connected with the deflector to drive the first puncture tube to switch between the first state and the second state; the liquid taking cup is arranged at the opening of the liquid discharge chamber and The liquid storage bottle is detachably connected; the liquid discharge mechanism is installed in the liquid discharge chamber for discharging the blood in the negative pressure chamber into the liquid taking cup.

Preferably, the liquid storage bottle is provided with a pressure regulating hole connecting the negative pressure chamber and the outside world, and a sealing plug is installed inside the pressure regulating hole.

Preferably, the first end of the liquid storage bottle is provided with a sliding column, and the end of the guide member close to the first puncture tube is provided with a limiting block, and the limiting block is provided with a sliding column that slides with the sliding column. connected sliding holes so that the deflector is movably installed at the head end of the liquid storage bottle; the adjustment member is rotatably installed at the head end of the liquid storage bottle, and the inside of the adjustment member A screw hole is provided; one end of the guide member close to the first puncture tube passes through the screw hole, and a thread is provided on the outside of the end, so that the guide member is threadedly connected with the screw hole; rotate The adjusting member can drive the deflector to move along the length direction of the sliding column.

Preferably, the guide channel is designed in a curved shape.

Preferably, the liquid discharge mechanism includes a liquid discharge funnel and a rotating rod, and a leak hole connecting the negative pressure chamber and the liquid discharge chamber is provided inside the liquid storage bottle, and the liquid discharge funnel is arranged on the discharge chamber. In the liquid cavity, and the liquid inlet end of the liquid discharge funnel is connected with the leak hole; the liquid discharge end of the liquid discharge funnel is provided with a rotating hole, and the rotating rod is rotatably installed on the liquid storage In the bottle, the first end of the rotating rod extends into the rotating hole, and the first end of the rotating rod is provided with a drain hole, and the second end of the rotating rod extends through the draining cavity to the outside; Rotating the rotating rod can drive the liquid discharge hole to communicate with or block the negative pressure chamber and the liquid taking cup.

Preferably, the liquid discharge mechanism further includes a second puncture tube, the tail end of the liquid storage bottle is provided with a cover plate for covering the opening of the liquid discharge chamber, and a second rubber stopper is provided inside the cover plate, And the second rubber plug is provided with a "凵" shaped rubber block; the first end of the second puncture tube is connected to the discharge end of the discharge funnel, and the second end of the second puncture tube runs through the The cover plate is placed in the "凵" shaped rubber block; a stopper is provided in the liquid taking cup, and a liquid outlet is arranged on the stopper corresponding to the second puncture tube; the liquid taking cup and the When the tail end of the liquid storage bottle is connected, the stopper squeezes the “凵”-shaped rubber block so that the second end of the second puncture tube passes through the “凵”-shaped rubber block and the “凵”-shaped rubber block in turn. The liquid outlet is connected to the inside of the liquid taking cup.

Preferably, an elastic piece is also included. A buffer groove is provided inside the “凵” shaped rubber block, and the second end of the second puncture tube is placed in the buffer groove; the elastic piece is sleeved on the first On the second end of the two puncture tubes, and one end of the elastic member is against the cover plate, and the other end of the elastic member is against the bottom wall of the buffer tank; the stopper presses the “凵” shaped rubber When block, the elastic member compresses and stores energy.

Preferably, a cover is further included, the cover is detachably mounted on the adjustment member, and the cover is provided with a cover hole for covering the needle interface.

Preferably, a clamping block is provided on the adjusting member, and a clamping hole is provided on the cover corresponding to the clamping block, and the clamping block and the clamping hole are transition-fitted and clamped.

Preferably, both the liquid storage bottle and the liquid taking cup are made of transparent material, and a scale is provided on the liquid taking cup.

(3) Beneficial effects

A blood sample collection and taking device provided by the present invention, by designing the first rubber plug with recovery ability at the opening of the negative pressure chamber of the liquid storage bottle, to increase the airtightness of the negative pressure chamber; The internal design of the diversion channel is used to replace the traditional collection hose. The design of the diversion channel will not be folded or twisted, so as to ensure that the blood can pass through smoothly; There is a first puncture tube, so by designing the adjustment part to adjust the insertion of the first puncture tube into the negative pressure cavity or taking it out of the negative pressure cavity, it is possible to avoid the first puncture tube from being stabbed by the user due to manual error; finally , by designing a liquid discharge mechanism in the liquid discharge chamber to discharge the blood sample in the negative pressure chamber, and by designing a detachable connection cup at the bottom of the liquid storage bottle to accept the blood sample taken out, instead of the traditional one The method of sampling with a syringe; and in the process of taking blood samples, since the liquid collection cup is installed at the end of the liquid storage bottle and the liquid discharge chamber is covered, it can prevent the outside air from entering the negative pressure chamber and causing blood Sample contamination improves the storage capacity of blood samples and improves the accuracy of blood testing.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation of the present invention. In the accompanying drawings:

Figure 1 shows a schematic diagram of the overall structure of the present invention;

Fig. 2 shows the overall structural schematic diagram II of the present invention;

Fig. 3 shows the sectional view A-A of Fig. 2;

Fig. 4 shows the enlarged view of place A in Fig. 3;

Figure 5 shows an enlarged view at B in Figure 3;

Fig. 6 shows an exploded schematic view 1 of the overall structure of the present invention;

Fig. 7 shows the exploded schematic diagram II of the overall structure of the present invention;

Fig. 8 shows the sectional view B-B of Fig. 7;

Figure 9 shows an enlarged view at C in Figure 8;

Figure 10 shows an enlarged view at D in Figure 8;

Fig. 11 shows an exploded schematic view 1 of a partial structure of the present invention;

Fig. 12 shows the second exploded schematic diagram of the partial structure of the present invention.

In the figure: 1 liquid storage bottle, 10 negative pressure chamber, 100 pressure regulating hole, 10m sealing plug, 10S first rubber plug, 11 liquid discharge chamber, 1h sliding column, 12 leak hole, 13 cover plate, 13S second rubber plug , 13S0 "凵" shaped rubber block, 13S1 buffer groove, 2 flow guides, 20 flow guide channels, 20C first puncture tube, 20Z needle interface, 21 limit block, 21h sliding hole, 3 adjustment parts, 3L screw hole, 3k blocks, 4 liquid cups, 4D block, 4D0 liquid outlet, 4P scale, 5 liquid discharge mechanism, 51 liquid discharge funnel, 510 rotary hole, 51P liquid discharge pipe, 52 rotary rod, 520 liquid discharge hole, 53 The second puncture tube, 6 caps, 60 cap holes, 6k card holes, Q sealing ring, T elastic piece, Y medical needle.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Referring to accompanying drawings 1-10, a device for collecting and taking blood samples includes a liquid storage bottle 1, a deflector 2, an adjustment member 3, a liquid extraction cup 4 and a liquid discharge mechanism 5, and the interior of the liquid storage bottle 1 is There is a negative pressure chamber 10 that opens outwards, the first end of the liquid storage bottle 1 is provided with a first rubber plug 10S for covering the opening of the negative pressure chamber 10, and the tail end of the liquid storage bottle 1 is also provided with an outward opening. The liquid discharge cavity 11; the flow guide 2 is provided with a flow guide channel 20, and the two ends of the flow guide 2 are respectively provided with a needle interface 20Z connected to the flow guide channel 20 and a first puncture tube 20C; and the flow guide 2 can be It is movably installed on the head end of the liquid storage bottle 1, so that the first puncture tube 20C has a first state away from the first rubber plug 10S, and pierces the first rubber plug 10S to the second state in the negative pressure chamber 10; adjust Part 3 is installed on the head end of liquid storage bottle 1 and is drivenly connected with guide part 2 to drive the first puncture tube 20C to switch the first state or the second state; the liquid taking cup 4 is arranged at the opening of the liquid discharge chamber 11 and It is detachably connected with the liquid storage bottle 1 ; the liquid discharge mechanism 5 is installed in the liquid discharge chamber 11 for discharging the blood in the negative pressure chamber 10 into the liquid taking cup 4 .

Specifically, under normal circumstances, the first puncture tube 20C is in the first state. At this time, the negative pressure chamber 10 is blocked by the first rubber plug 10S and is in a sealed state, and the interior of the negative pressure chamber 10 has a negative air pressure;

When it is necessary to collect a blood sample, the medical needle Y is installed at the needle interface 20Z, and then the guide member 2 is driven to move in the positive direction by adjusting the adjustment member 3, so that the first puncture tube 20C moves from the first state to the second state. When the first puncture tube 20C passes through the first rubber plug 10S into the negative pressure chamber 10, the diversion channel 20 is connected to the negative pressure chamber 10; then the medical needle Y is inserted into the vein of the collection object, and the blood in the vein is Under the action of pressure, it passes through the medical needle Y, the diversion channel 20 and the first puncture tube 20C in turn and enters the negative pressure chamber 10; 2. Move in the opposite direction, so that the first puncture tube 20C moves from the second state to the first state. At this time, the first rubber plug 10S recovers and blocks the negative pressure chamber 10 again, and the blood sample can be stored in the negative pressure chamber 10 ;

When it is necessary to take the blood sample in the negative pressure chamber 10, open the liquid discharge mechanism 5 to directly discharge part of the blood in the negative pressure chamber 10 into the liquid collection cup 4, then close the liquid discharge mechanism 5, and remove the liquid collection cup 4 That's it.

In summary, the present invention designs the first rubber plug 10S with recovery capability at the opening of the negative pressure chamber 10 of the liquid storage bottle 1 to increase the airtightness of the negative pressure chamber 10; The channel 20 is used to replace the traditional collection hose, and the design of the guide channel 20 will not be folded or twisted, so as to ensure that the blood can pass through smoothly;

Further, since the first puncture tube 20C is provided at the end of the flow guide 2 close to the first rubber plug 10S, the adjustment part 3 is designed to adjust the penetration of the first puncture tube 20C into the negative pressure chamber 10 or from the negative pressure. The first puncture tube 20C can be taken out from the cavity 10 to prevent the user from being stabbed by the first puncture tube 20C due to manual errors;

Finally, by designing the liquid discharge mechanism 5 in the liquid discharge chamber 11 to discharge the blood sample in the negative pressure chamber 10, and by designing a detachably connected liquid collection cup 4 at the bottom of the liquid storage bottle 1 to receive the extracted blood sample, to replace the traditional way of sampling with a syringe; and in the process of taking blood samples, since the liquid taking cup 4 is installed on the tail end of the liquid storage bottle 1 and the liquid discharge chamber 11 is covered, it can avoid external Air enters the negative pressure chamber 10 to cause contamination of the blood sample, which improves the storage capacity of the blood sample and improves the accuracy of the blood test.

It should be noted that, considering that in some special cases, it is difficult for the deflector 2 to extend to the vein, for this reason, in the embodiment of the present invention, the needle interface 20Z can also be directly connected to the collection hose first, and then connected to the collection hose. A medical needle Y is connected to the end away from the needle interface 20Z to extend the collection range; in addition, the first rubber plug 10S in the present invention is made of rubber material.

Referring to accompanying drawing 1-accompanying drawing 4, negative pressure chamber 10 has two kinds of ways to have negative pressure, one, the gas in negative pressure chamber 10 is directly drawn out in the production process, and second, when in use, through syringe or suction The equipment extracts the gas in the negative pressure chamber 10; the former has high technical cost and is easy to cause the liquid storage bottle 1 to burst, so the latter is adopted in the present invention; for this reason, the liquid storage bottle 1 in the present invention is provided with a connected negative pressure chamber 10 and the external pressure regulating hole 100, the inside of the pressure regulating hole 100 is equipped with a sealing plug 10m; wherein the sealing plug 10m is made of rubber.

When in use, you can directly use the needle to connect the syringe or other air extraction equipment, and insert the needle through the sealing plug 10m to the negative pressure chamber 10 to extract the gas in the negative pressure chamber 10, then pull out the needle, and reset the sealing plug 10m. Make the negative pressure chamber 10 have negative pressure.

Referring to accompanying drawing 3-accompanying drawing 9, the head end of liquid storage bottle 1 is provided with slid column 1h, and the end of deflector 2 close to first puncture tube 20C is provided with limit block 21, and limit block 21 is provided with slide The sliding hole 21h of the column 1h is slidably connected, so that the deflector 2 is movably installed on the head end of the liquid storage bottle 1; There is a screw hole 3L; the end of the flow guide 2 close to the first puncture tube 20C passes through the screw hole 3L, and the upper and outer sides of this end are provided with threads, so that the flow guide 2 is threadedly connected with the screw hole 3L; the rotation adjustment member 3 can drive The deflector 2 moves along the length direction of the sliding column 1h.

Specifically, when in use, turning the adjusting member 3 in the positive direction can drive the limit block 21 to move down along the length direction of the sliding column 1h, so that the flow guide 2 moves to the second state in the forward direction; similarly, turning the adjusting member 3 in the opposite direction That is, the limiting block 21 is driven to move upward along the length direction of the sliding post 1h, so that the air guide 2 moves in the opposite direction to the first state.

Among them, the sliding connection design of the sliding hole 21h and the sliding column 1h, and the threaded connection design of the flow guide 2 and the screw hole 3L enable the flow guide 2 to move stably along the length direction of the sliding column 1h, and improve the stability of the flow guide 2. Mobile stability.

Referring to accompanying drawings 3-4, the guide channel 20 is designed in a curved shape, thereby increasing the overall length of the guide channel 20 within the limited volume of the guide member 2, and slowing down the blood flow rate to prevent blood from flowing too quickly from the vein Entering into the negative pressure chamber 10 can effectively reduce the pain of the sampling subject.

Referring to accompanying drawings 6-12, the draining mechanism 5 includes a draining funnel 51 and a rotating rod 52, and the inside of the liquid storage bottle 1 is provided with a leak hole 12 connecting the negative pressure chamber 10 and the draining chamber 11, and the draining funnel 51 is set In the liquid discharge cavity 11, and the liquid inlet end of the liquid discharge funnel 51 is connected with the leakage hole 12; the liquid discharge end of the liquid discharge funnel 51 is provided with a rotating hole 510, and the rotating rod 52 is rotatably installed in the liquid storage bottle 1 Inside, the first end of the rotating rod 52 extends into the rotating hole 510, and the first end of the rotating rod 52 is provided with a drain hole 520, and the second end of the rotating rod 52 extends through the drain chamber 11 to the outside; rotating the rotating rod 52 can The liquid discharge hole 520 is driven to communicate with or block the negative pressure chamber 10 and the liquid taking cup 4 .

Specifically, the structure of the drain funnel 51 is similar to the funnel in daily life, and a drain pipe 51P is arranged inside it. Normally, the drain hole 520 is misaligned with the drain pipe 51P of the drain funnel 51 to block the drain. liquid funnel 51 to close the negative pressure chamber 10, so that the negative pressure chamber 10 is in an airtight state;

When it is necessary to take out the blood sample in the negative pressure chamber 10, turn the rotating rod 52 to drive the drain hole 520 to connect with the drain pipe 51P of the drain funnel 51, so that the blood sample stored in the negative pressure chamber 10 passes through the drain hole 12 , the drain funnel 51 and the drain hole 520 enter the liquid taking cup 4; after the belt sampling is completed, turn the rotating rod 52 to drive the drain hole 520 and the drain pipe 51P of the drain funnel 51 to be misaligned to block the negative pressure chamber 10, At this point, the liquid-taking cup 4 can be removed; during this process, the blood sample in the negative pressure chamber 10 is largely prevented from contacting the outside world.

Therefore, the above-mentioned design can avoid contamination of the blood sample caused by outside air entering the negative pressure chamber 10 , improves the storage capacity of the blood sample, and improves the accuracy of the blood test.

Referring to accompanying drawings 6-12, the liquid discharge mechanism 5 also includes a second puncture tube 53, the tail end of the liquid storage bottle 1 is provided with a cover plate 13 for covering the opening of the liquid discharge chamber 11, and the inside of the cover plate 13 is provided with a second piercing tube 53. Two rubber plugs 13S, and the second rubber plug 13S is provided with "凵" shaped rubber block 13S0; the first end of the second puncture tube 53 is connected with the discharge end of the discharge funnel 51, and the second end of the second puncture tube 53 The end passes through the cover plate 13 and is placed in the "凵"-shaped rubber block 13S0; a stopper 4D is provided in the liquid taking cup 4, and a liquid outlet 4D0 is provided on the stopper 4D corresponding to the second puncture tube 53.

Specifically, under normal circumstances, the liquid taking cup 4 is connected to the tail end of the liquid storage bottle 1, and the stopper 4D squeezes the "凵"-shaped rubber block 13S0 so that the second end of the second puncture tube 53 passes through the "凵" in turn. The rubber block 13S0 and the liquid outlet 4D0 reach the inside of the liquid-taking cup 4; at this time, the second puncture tube 53 is surrounded by the liquid-taking cup 4 to avoid external air pollution, while the “凵”-shaped rubber block 13S0 is squeezed storage compression;

After the sampling is completed, when the user removes the liquid-taking cup 4, the release energy of the "凵"-shaped rubber block 13S0 recovers, and gradually wraps the second end of the second puncture tube 53, so that the liquid-taking cup 4 is removed. , the second end of the second puncture tube 53 is completely covered inside, so as to avoid external air pollution.

When reinstalling the liquid-taking cup 4 to the end of the liquid storage bottle 1, the stopper 4D squeezes the "凵"-shaped rubber block 13S0 to store energy, so that the second end of the second puncture tube 53 passes through the "凵"-shaped rubber block in sequence 13S0 and the liquid outlet 4D0 to the inside of the liquid sampling cup 4 for re-sampling.

To sum up, by designing the cover plate 13 and the second rubber plug 13S to block the liquid discharge chamber 11, the airtightness of the liquid discharge chamber 11 is improved; while the stopper 4D on the liquid collection cup 4 is used to assist the second rubber plug The "凵"-shaped rubber block 13S0 of 13S moves, so that the second puncture tube 53 installed at the discharge end of the discharge funnel 51 punctures the second rubber plug 13S, which is convenient for sampling; and because the "凵"-shaped rubber block 13S0 has elasticity and Certain recovery ability, so when the stopper 4D is disengaged, the "凵" shaped rubber block 13S0 resets and rewraps the second puncture tube 53; therefore, the above design can prevent the second puncture tube 53 from being polluted during the sampling process and realize multiple sampling .

Particularly, in order to realize multiple sampling, blood coagulation in the negative pressure chamber 10, the drain funnel 51 and the second puncture tube 53 should be avoided. For this reason, in the embodiment of the invention, the liquid storage bottle 1, the drain funnel 51 and the The second puncture tube 53 is treated with an anticoagulant to form an anticoagulant coating; in addition, the needle interface 20Z on the flow guide 2, the guide channel 20 and the first puncture tube 20C are also provided with an anticoagulant coating to The blood can enter the negative pressure chamber 10 smoothly.

In addition, blood coagulation can also be avoided by adding heparin in the flow guide 2 , the liquid storage bottle 1 and the drain funnel 51 .

Referring to accompanying drawings 7-12, further, in order to assist the reset of the "凵"-shaped rubber block 13S0, the present invention also includes an elastic part T, and the inside of the "凵"-shaped rubber block 13S0 is provided with a buffer groove 13S1, and the second puncture tube The second end of 53 is placed in the buffer groove 13S1; the elastic member T is sleeved on the second end of the second puncture tube 53, and one end of the elastic member T is against the cover plate 13, and the other end of the elastic member T is in contact with the bottom of the buffer groove 13S1. When the block 4D squeezes the "凵"-shaped rubber block 13S0, the elastic part T compresses and stores energy; The "shaped rubber block 13S0 resets.

Referring to accompanying drawing 1-accompanying drawing 12, in the embodiment of the present invention, the liquid taking cup 4 and the liquid storage bottle 1 are threadedly connected, which can not only make the liquid taking cup 4 and the liquid storage bottle 1 detachable from each other, but also ensure the liquid taking cup 4 When connected to the liquid storage bottle 1, the liquid discharge chamber 11 is in a sealed state; in addition, the present invention is also provided with a sealing ring Q, the sealing ring Q is set on the outer edge of the circumference of the cover plate 13, and the liquid taking cup 4 and the liquid storage bottle 1 are The threaded connection is that the top edge of the liquid-taking cup 4 is offset against the sealing ring Q. In order to further improve the airtightness of the discharge chamber 11.

Referring to accompanying drawings 1-6, it also includes a cover 6, which is detachably installed on the adjustment member 3, and the cover 6 is provided with a cover hole 60 for covering the needle interface 20Z.

Under normal circumstances, the cover 6 is connected with the adjustment member 3, and the cover hole 60 covers the needle interface 20Z and the end of the guide member 2 away from the first rubber plug 10S, so as to prevent the needle interface 20Z of the guide member 2 from being polluted; when in use Just take off the cover 6; after use, cover the cover 6 with the flow guide 2 again, and the blood in the flow guide channel 20 will splash to the outside through the needle interface 20Z to cause pollution; therefore, the design of the cover 6 can be Prevent the directing element 2 from contacting with the outside to cause series pollution.

Referring to accompanying drawings 1-6, further, in order to detachably connect the cover 6 to the adjusting part 3, the adjusting part 3 is provided with a clamping block 3k, and the corresponding clamping block 3k is provided with a clamping hole 6k on the cover 6, The clamping block 3k and the clamping hole 6k are transitionally fit and clamped; when it is necessary to remove the cover 6, it is necessary to use a certain force to move the cover 6 so that the clamping block 3k is separated from the clamping hole 6k. Similarly, when it is necessary to use the cover 6 When closing the deflector 2 , it is necessary to forcefully push the cover 6 to drive the locking block 3k to engage with the locking hole 6k.

Referring to accompanying drawings 1-2, both the liquid storage bottle 1 and the liquid taking cup 4 are made of transparent material, so that the user can observe the remaining amount of blood sample in the negative pressure chamber 10 and observe the extraction on the liquid taking cup 4. and a scale 4P is provided on the liquid taking cup 4, so that the user can confirm the specific amount of blood sample taken each time.

It should also be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

Claims (7)

1. A blood sample collection and taking device, characterized in that, comprising: A liquid storage bottle (1), the interior of the liquid storage bottle (1) is provided with a negative pressure chamber (10) opening outward, and the head end of the liquid storage bottle (1) is provided with a (10) The first rubber stopper (10S) with an opening, the tail end of the liquid storage bottle (1) is provided with a liquid discharge chamber (11) that opens outward; A deflector (2), the deflector (2) is provided with a deflector channel (20) inside, and the two ends of the deflector (2) are respectively provided with needle ports connected to the deflector channel (20) (20Z) and the first puncture tube (20C); and the deflector (2) is movably installed on the head end of the liquid storage bottle (1), so that the first puncture tube (20C) has A first state away from the first rubber plug (10S), and piercing the first rubber plug (10S) to a second state in the negative pressure chamber (10); An adjustment piece (3), the adjustment piece (3) is installed on the head end of the liquid storage bottle (1) and is drivingly connected with the guide piece (2), so as to drive the first puncture tube (20C) Toggle the first state or the second state; A liquid taking cup (4), the liquid taking cup (4) is arranged at the opening of the liquid discharge chamber (11) and is detachably connected with the liquid storage bottle (1), and the liquid taking cup ( 4) When connected to the liquid storage bottle (1), the liquid taking cup (4) covers the opening of the liquid discharge chamber (11); A liquid discharge mechanism (5), the liquid discharge mechanism (5) is installed in the liquid discharge chamber (11), for discharging the blood in the negative pressure chamber (10) to the liquid extraction cup ( 4) inside; The liquid discharge mechanism (5) includes a liquid discharge funnel (51) and a rotating rod (52), and the inside of the liquid storage bottle (1) is provided with a ), the drain funnel (51) is set in the drain cavity (11), and the liquid inlet end of the drain funnel (51) is connected to the leak hole (12) through; the discharge end of the drain funnel (51) is provided with a rotating hole (510), the rotating rod (52) is rotatably installed in the liquid storage bottle (1), and the rotating rod ( 52) The first end extends into the rotating hole (510), and the first end of the rotating rod (52) is provided with a drain hole (520), and the second end of the rotating rod (52) extends through the The liquid discharge chamber (11) to the outside; turning the rotating rod (52) can drive the liquid discharge hole (520) to connect or block the negative pressure chamber (10) and the liquid extraction cup (4); The liquid discharge mechanism (5) also includes a second puncture tube (53), and the tail end of the liquid storage bottle (1) is provided with a cover plate (13) for covering the opening of the liquid discharge chamber (11), The cover plate (13) is provided with a second rubber plug (13S) inside, and the second rubber plug (13S) is provided with a "凵" shaped rubber block (13S0); the second puncture tube (53) The first end of the discharge funnel (51) is connected to the discharge end of the discharge funnel (51), and the second end of the second puncture tube (53) passes through the cover plate (13) and is placed on the "凵" shaped rubber block ( 13S0); A block (4D) is provided inside the liquid extraction cup (4), and a liquid outlet (4D0) is provided on the block (4D) corresponding to the second puncture tube (53); the liquid extraction cup ( 4) When connected to the tail end of the liquid storage bottle (1), the stopper (4D) squeezes the "凵"-shaped rubber block (13S0), so that the second puncture tube (53) The second end sequentially passes through the "凵" shaped rubber block (13S0) and the liquid outlet (4D0) to the inside of the liquid taking cup (4); The blood sample collection and taking device also includes an elastic member (T), the "凵" shaped rubber block (13S0) is provided with a buffer groove (13S1) inside, and the second end of the second puncture tube (53) is placed In the buffer groove (13S1); the elastic member (T) is sheathed on the second end of the second puncture tube (53), and one end of the elastic member (T) is connected to the cover plate ( 13) against, the other end of the elastic piece (T) is against the bottom wall of the buffer groove (13S1); Part (T) compresses energy storage. 2. A blood sample collection and taking device according to claim 1, characterized in that, the liquid storage bottle (1) is provided with a pressure regulating hole ( 100), and a sealing plug (10m) is installed inside the pressure regulating hole (100). 3. A blood sample collection and taking device according to claim 1, characterized in that, the head end of the liquid storage bottle (1) is provided with a sliding post (1h), and the flow guide (2) One end close to the first puncture tube (20C) is provided with a limit block (21), and the limit block (21) is provided with a sliding hole (21h) which is slidably connected with the sliding column (1h), so as to The deflector (2) is movably installed on the head end of the liquid storage bottle (1); The adjustment member (3) is rotatably installed on the head end of the liquid storage bottle (1), and a screw hole (3L) is provided inside the adjustment member (3); the guide member (2) is close to One end of the first puncture tube (20C) passes through the screw hole (3L), and a thread is provided on the outer side of the end, so that the guide member (2) is threadedly connected to the screw hole (3L); Turning the adjustment member (3) can drive the guide member (2) to move along the length direction of the sliding post (1h). 4. The device for collecting and taking blood samples according to claim 1, characterized in that, the guide channel (20) is designed in a curved shape. 5. A blood sample collection and taking device according to claim 1, characterized in that it further comprises a cover (6), the cover (6) is detachably mounted on the adjustment member (3) , and the cover (6) is provided with a cover hole (60) for covering the needle interface (20Z). 6. A device for collecting and taking blood samples according to claim 5, characterized in that, the adjustment member (3) is provided with a block (3k), and the cover (6) corresponds to the The clamping block (3k) is provided with a clamping hole (6k), and the clamping block (3k) is transition-fitted and clamped with the clamping hole (6k). 7. A blood sample collection and taking device according to claim 1, characterized in that, both the liquid storage bottle (1) and the liquid taking cup (4) are made of transparent material, and the A scale (4P) is provided on the liquid taking cup (4).

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