CN111166353B

CN111166353B - Blood sampling device for collecting blood samples

Info

Publication number: CN111166353B
Application number: CN202010095121.4A
Authority: CN
Inventors: 刘荟敏; 刘敏; 宋东映
Original assignee: Jingzhou Central Hospital Jingzhou Hospital Affiliated To Yangtze University
Current assignee: Jingzhou Central Hospital Jingzhou Hospital Affiliated To Yangtze University
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2023-02-28
Anticipated expiration: 2040-02-14
Also published as: CN111166353A

Abstract

The invention discloses a blood drawing device for collecting a blood sample, which comprises a barrel body, wherein the upper end and the lower end of the barrel body are respectively fixedly connected with an upper blocking cap and a lower blocking cap, the upper surface of the upper blocking cap is fixedly connected with a flow distribution block, a flow distribution cavity is formed in the flow distribution block, a blood inlet of the flow distribution cavity is movably connected with a first hose, each blood outlet of the flow distribution cavity is movably connected with a third hose, the lower end of the third hose penetrates through the side wall of the upper blocking cap and extends into the chamber, a puncture needle is fixedly connected with the inside of the chamber, the lower end of the puncture needle is movably inserted into the blood sampling tube, a plurality of sliding grooves are formed in the upper blocking cap, and a flow stopping rod is slidably connected into the sliding grooves.

Description

Blood sampling device for collecting blood samples

Technical Field

The invention relates to the technical field of medical instruments, in particular to a blood drawing device for collecting blood samples.

Background

The blood sampling is one of the conventional physical examination items, various diseases can be examined through blood sampling test, the health condition of a human body can be reflected in detail, meanwhile, a doctor provides necessary auxiliary information for formulating a treatment scheme through a blood test result, a blood sampling tube is generally adopted for blood collection clinically, a plurality of bottles of blood samples need to be extracted in the blood sampling process at present, the specific method is that a blood sampling drainage device is utilized to collect enough samples from one blood sampling tube, then the blood sampling drainage device is extracted and inserted into the other blood sampling tube, and the end part of the blood sampling device is frequently contacted with air due to the blood sampling mode, so that the collected blood pollution is possibly caused, and the precision of blood examination is reduced.

Disclosure of Invention

The present invention is directed to a blood sampling device for collecting a blood sample, so as to solve the problems of the background art mentioned above.

In order to achieve the purpose, the invention provides the following technical scheme: a blood drawing device for collecting a blood sample comprises a barrel body, wherein an upper blocking cap and a lower blocking cap are fixedly connected to the upper end and the lower end of the barrel body respectively, a plurality of chamber cavities are formed in the barrel body, a blood collection tube is placed in each chamber cavity, a flow distribution block is fixedly connected to the upper surface of the upper blocking cap, a flow distribution cavity is formed in the flow distribution block, a blood inlet and a plurality of blood outlets are formed in the flow distribution cavity, a blood inlet of the flow distribution cavity is movably connected with a first hose, the upper end of the first hose is communicated with a second hose, and the end part of the second hose is connected with a blood drawing needle;

the equal swing joint of every hemorrhage mouth of reposition of redundant personnel chamber has the third hose, the lower extreme of third hose runs through the lateral wall of last stifled cap and extends to the inside and the fixedly connected with pjncture needle in thorax chamber, the lower extreme activity of pjncture needle is pegged graft in the inside of heparin tube, a plurality of spouts have all been opened to the inside of going up stifled cap, there is the flow stopping pole inside of spout through first spring sliding connection, and every flow stopping pole respectively with the lateral wall activity crimping of every third hose, the outer end of flow stopping pole extends to the outside and the fixedly connected with of stifled cap and presses the board.

Preferably, the upper end of first hose has the second hose through the valve body intercommunication, the valve body includes rubber buffer and overcoat, the inside of rubber buffer and overcoat respectively with the inside intercommunication of second hose and first hose, and rubber buffer sliding connection is in the inside of overcoat, the inside of overcoat is equipped with the syringe needle, syringe needle and first hose intercommunication and the activity is pegged graft in the inside of rubber buffer.

Preferably, the upper end central point of staving puts fixedly connected with guide arm, the clamp plate has been cup jointed through the second spring slip on the guide arm, the lower lateral wall of clamp plate and the up end swing joint of heparin tube.

Preferably, the lower plugging cap is fixedly connected to the inside of the barrel body in a threaded engagement manner.

Preferably, a plurality of observation ports are formed in the side wall of the barrel body, and scale marks can be arranged on the side wall of each observation port.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the lower blocking cap pushes the blood sampling tube in each chamber upwards, so that each puncture needle is inserted into each blood sampling tube at the same time, blood is drained to the inner part of the shunting cavity through the third hose and the second hose, after any pressing plate is pressed, the flow stopping rod connected with the pressing plate does not extrude the corresponding third hose after sliding, and thus, a channel in the third hose is unblocked, so that blood can be collected into the blood sampling tube below from the inner part of the third hose, after the blood sampling tube collects enough blood samples, the pressing plate is loosened and the other pressing plate is pressed, so that blood can flow into the inner part of the other blood sampling tube, the process of pulling out the drainage device and replacing the drainage device after the blood sampling of one blood sampling tube is finished is omitted, the risk that the end part of the blood sampling device is frequently contacted with air is avoided, the problem of blood pollution is prevented, and the accuracy of blood inspection is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the upper blanking cap, the barrel body and the lower blanking cap of the present invention;

FIG. 3 is an enlarged view taken at A of FIG. 2 in accordance with the present invention;

FIG. 4 is an exploded view of the upper blanking cap, the barrel body and the lower blanking cap of the present invention;

FIG. 5 is a cross-sectional view of the barrel, chamber, blood collection tube and platen of the present invention;

FIG. 6 is an enlarged view of the invention at B of FIG. 5;

FIG. 7 is a cross-sectional view of the present invention at the first hose, valve body and second hose;

FIG. 8 is a cross-sectional view of the upper blanking cap, the chute and the flow stop bar of the present invention;

fig. 9 is a cross-sectional view of a third hose, diverter block and diverter chamber of the present invention.

In the figure: 1. barrel, 2, upper blocking cap, 3, lower blocking cap, 4, chamber, 5, shunt block, 6, shunt chamber, 7, first hose, 8, valve body, 801, rubber plug, 802, overcoat, 803, syringe needle, 9, second hose, 10, blood drawing needle, 11, third hose, 12, pjncture needle, 13, heparin tube, 14, spout, 15, first spring, 16, flow stopping rod, 17, press board, 18, guide arm, 19, second spring, 20, clamp board, 21, viewing aperture.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, the present invention provides a technical solution: the utility model provides a blood drawing device of gathering blood sample, includes staving 1, stifled cap 2 and lower stifled cap 3 are gone up to the upper and lower both ends difference fixedly connected with of staving 1, open the inside of staving 1 has a plurality of thorax 4, and blood sampling tube 13 has all been placed to the inside of every thorax 4, and the inside of blood sampling tube 13 is the negative pressure, and the material of blood sampling tube 13 is the transparent glass material, and the upper end mouth of pipe department of blood sampling tube 13 is plugged up with the rubber material that easily punctures, and the inside air of blood sampling tube 13 is the vacuum negative pressure state, and after blood sampling tube 13 and human vein intercommunication, the inside vacuum negative pressure of blood sampling tube 13 just is automatic with the inside blood suction of human body and collect the inside of blood sampling tube 13, go up the upper surface fixedly connected with reposition of redundant personnel block 5 of redundant personnel of stifled cap 2, the inside of reposition of redundant personnel 5 is opened has reposition of redundant personnel chamber 6, be equipped with an inlet and a plurality of blood outlet on reposition of redundant personnel 6, the reposition of redundant personnel's mouth and blood inlet and a plurality of reposition of redundant personnel and blood outlet are equipped with

first hose

7, and 10 convenient blood drawing needle hose 10 are connected with

first hose

7, and 10 blood hose 10 are connected with the blood drawing needles on the blood hose that the first hose that can flow of first hose 7 that flows the reposition of the first hose 7 that flows.

Each bleeding opening of the shunting cavity 6 is movably connected with a third hose 11, the third hose 11 is made of transparent soft plastic material and is easy to deform and flatten after being squeezed by external force, the lower end of the third hose 11 penetrates through the side wall of the upper plugging cap 2 and extends to the interior of the chamber 4 and is fixedly connected with a puncture needle 12, the lower end of the puncture needle 12 is movably inserted in the blood sampling tube 13, the puncture needle 12 is fixed on the lower side surface of the upper blocking cap 2, when the blood collection tubes 13 are pushed upward by the lower cap 3, each puncture needle 12 is inserted into each blood collection tube 13 at the same time, thus, the blood collection tube 13 and the third flexible tube 11 are communicated through the puncture needle 12, a plurality of chutes 14 are formed in the upper blocking cap 2, the chutes 14 are slidably connected with the stop rods 16 through the first springs 15, and each flow stopping rod 16 is movably pressed with the side wall of each third hose 11, under the natural state, the first spring 15 has certain elasticity to the flow stopping rod 16, so that the flow stopping rod 16 presses the side wall of the third hose 11, and then the internal channel of the third hose 11 is blocked, the outer end of the flow stopping rod 16 extends to the outside of the upper blocking cap 2 and is fixedly connected with a pressing plate 17, the pressing plate 17 is pressed to enable the flow stopping rod 16 connected with the pressing plate 17 to slide towards the inside of the chute 14, therefore, the flow stopping rod 16 does not squeeze the corresponding third flexible tube 11, so that the inner channel of the corresponding third flexible tube 11 is unblocked, blood in the shunting cavity 6 can flow through the inner part of the blood sampling tube 13 communicated with the third flexible tube 11 along the third flexible tube 11, the pressing plate 17 is released, and the flow stopping rod 16 squeezes the third flexible tube 11 by the elasticity of the first spring 15, so that the side wall of the third flexible tube 11 is squeezed to block the inner channel.

Specifically, the upper end of the first hose 7 is communicated with a second hose 9 through a valve body 8, when a blood drawing needle 10 is used for puncturing, the valve body 8 has the function of cutting off the first hose 7 and the second hose 9, one end, located on the valve body 8, of the second hose 9 is in a blocking and blocking sealing state, so that blood is prevented from flowing to the device quickly, medical personnel are guaranteed to have enough time for detecting the blood drawing state of the device, and after the medical personnel determine that blood can be collected, the valve body 8 is pinched forcibly, so that the valve body 8 can communicate the first hose 7 with the second hose 9 quickly, and confusion cannot occur in the blood drawing process;

valve body 8 includes rubber buffer 801 and overcoat 802, the inside of rubber buffer 801 and overcoat 802 communicates with the inside of second hose 9 and first hose 7 respectively, and rubber buffer 801 sliding connection is in the inside of overcoat 802, the inside of overcoat 802 is equipped with syringe needle 803 (syringe needle 803 and overcoat 802 inner wall fixed connection), syringe needle 803 communicates and the activity is pegged graft in the inside of rubber buffer 801 with first hose 7. The rubber plug 801 and the side wall of the outer sleeve 802 have a certain friction force, and in a normal state, the rubber plug 801 and the outer sleeve 802 cannot slide relatively, so that the needle 803 is prevented from being automatically inserted into the rubber plug 801, when communication is required, the rubber plug 801 (the disc-shaped outer edge) and the outer sleeve 802 are pressed simultaneously, and the needle 803 is driven to pierce into the rubber plug 801 to communicate the pipeline.

In order to take out the blood collection tubes 13 from the inside of the cavity 4 conveniently, specifically, a guide rod 18 is fixedly connected to the center position of the upper end of the barrel body 1, a pressing plate 20 is slidably sleeved on the guide rod 18 through a second spring 19, a lower side wall of the pressing plate 20 is movably connected to the upper end face of the blood collection tube 13, when the lower plugging cap 3 is screwed to the lower end of the barrel body 1, the lower plugging cap 3 enables the blood collection tube 13 to slide upwards in the cavity 4, and simultaneously the upper end of the blood collection tube 13 pushes the pressing plate 20 to slide upwards and enables the second spring 19 to compress, when the plugging cap 3 is screwed down, the blood collection tube 13 loses the thrust action of the lower plugging cap 3, so that the compressed second spring 19 rebounds and resets, and then the pressing plate 20 slides downwards, at this time, each blood collection tube 13 is pressed by the pressing plate 20 to slide downwards, and then the blood collection tube 13 is separated from the puncture needle 12, and at this time, the blood collection tube 13 filled with blood samples can be taken out from the inside of the cavity 4 conveniently.

Specifically, lower blocking cap 3 is fixedly connected inside barrel 1 in a threaded engagement manner, and when lower blocking cap 3 is screwed onto barrel 1, the lower port of chamber 4 can be blocked to prevent blood collection tube 13 from slipping out, and along with the increasing number of turns of threaded engagement, lower blocking cap 3 pushes blood collection tube 13 upwards, so that the upper end face of blood collection tube 13 is pierced by piercing needle 12, and blood collection tube 13 is communicated with third flexible tube 11.

Specifically, the sidewall of the barrel 1 is provided with a plurality of observation ports 21, and the sidewall of each observation port 21 can be provided with a graduation line, so that the blood drawing condition of the blood collection tube 13 can be easily observed from the observation ports 21, and whether the blood sample inside the blood collection tube 13 is collected enough or not can be measured through the graduation lines.

The working principle is as follows: when the blood sampling device is used, after the blood sampling tube 13 is placed into the chamber 4 from the lower part of the barrel body 1, the lower blocking cap 3 is screwed on the lower end of the barrel body 1, at the moment, the blood sampling tube 13 is pushed upwards by the lower blocking cap 3, so that each puncture needle 12 is simultaneously and respectively inserted into each blood sampling tube 13, and the first hose 7 is fixedly inserted at a blood inlet of the shunting cavity 6 (the blood inlet is positioned on the shunting block 5), and in this state, the device can perform blood sampling operation; after the blood sampling needle 10 is inserted into a blood vessel of a person, the valve body 8 is forcibly pinched to slide the rubber plug 801 toward the inside of the outer sleeve 802, the needle cylinder 803 is then inserted into the rubber plug 802, the first hose 7 and the second hose 9 are then communicated through the needle 803, at this time, the blood of the person is drained to the inside of the shunt cavity 6 along the blood sampling needle 10, the second hose 9, the needle 803 and the first hose 7 in sequence, any pressing plate 17 is pressed to slide the flow stopping rod 16 connected with the pressing plate 17 toward the inside of the chute 14, so that the flow stopping rod 16 does not press the corresponding third hose 11, thereby the internal channel of the third hose 11 is unblocked, the blood in the shunt cavity 6 flows through the inside of the blood sampling tube 13 communicated therewith along the third hose 11, when the blood sampling material of the blood sampling tube 13 is sufficiently collected, the pressing plate 17 is loosened, at this time, the flow stopping rod 16 is pressed by the elastic force of the first spring 15 to press the third hose 11, so that the side wall of the third hose 11 is fully pressed by another blood sampling tube 13, and the blood sampling tube 13 is fully squeezed from the inside of the blood sampling tube 13, and at this time, after each blood sampling tube 13 is fully extracted, the blood sampling tube is collected, the blood sampling tube 13, and the other sampling tube 13 is squeezed from the sampling tube 13 is removed, and the sampling tube is pushed down, and the sampling tube 13 is removed, and the sampling tube is collected.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a blood sampling device of gathering blood sample, includes staving (1), upper and lower both ends difference fixedly connected with of staving (1) goes up stifled cap (2) and stifled cap (3) down, open the inside of staving (1) has a plurality of thorax chamber (4), and heparin tube (13), its characterized in that have all been placed to the inside of every thorax chamber (4): the upper surface of the upper blocking cap (2) is fixedly connected with a shunting block (5), a shunting cavity (6) is formed in the shunting block (5), a blood inlet and a plurality of blood outlets are formed in the shunting cavity (6), a blood inlet of the shunting cavity (6) is movably connected with a first hose (7), the upper end of the first hose (7) is communicated with a second hose (9), and the end part of the second hose (9) is connected with a blood drawing needle (10);

the equal swing joint of every hemorrhage mouth of reposition of redundant personnel chamber (6) has third hose (11), the lower extreme of third hose (11) runs through the lateral wall of last stifled cap (2) and extends to the inside and fixedly connected with pjncture needle (12) of thorax chamber (4), the lower extreme activity of pjncture needle (12) is pegged graft in the inside of heparin tube (13), go up the inside of stifled cap (2) and all open a plurality of spouts (14), the inside of spout (14) has only class pole (16) through first spring (15) sliding connection, and every only class pole (16) respectively with the lateral wall activity crimping of every third hose (11), only class pole (16) the outer end extends to the outside and fixedly connected with according to board (17) of stifled cap (2), the upper end of first hose (7) has second hose (9) through valve body (8) intercommunication, valve body (8) includes rubber buffer (801) and overcoat (802), the inside of rubber buffer (801) and overcoat (802) of rubber buffer (802) and outer sleeve (802) connect respectively with the inside hose 803 of second hose (801) and the syringe needle (7) and be equipped with the inside hose (801) of rubber buffer (801) and outside of syringe needle (801) and outside hose (7) and outside, a guide rod (18) is fixedly connected at the central position of the upper end of the barrel body (1), a pressure plate (20) is sleeved on the guide rod (18) in a sliding way through a second spring (19), the lower side wall of the pressing plate (20) is movably connected with the upper end surface of the blood sampling tube (13), a friction force is arranged between the rubber plug (801) and the side wall of the outer sleeve (802), the rubber plug (801) and the outer sleeve (802) can not slide relatively under the normal state, to prevent the needle (803) from automatically inserting into the rubber plug (801), the rubber plug (801) is provided with a disk-shaped outer edge, when the plugging cap (3) is unscrewed, the blood sampling tube (13) loses the thrust action of the plugging cap (3), under the compression and rebound of the second spring (19), the plurality of blood sampling tubes (13) are separated from the puncture needle (12) by being pressed by the pressing plate (20) to slide downwards, to be taken out from the inner part of the chamber (4), the puncture needle (12) is fixed on the lower side surface of the upper blocking cap (2), when the blood sampling tube (13) is pushed upwards by the lower blocking cap (3), each puncture needle (12) can be simultaneously and respectively inserted into the interior of each blood sampling tube (13), the lower plugging cap (3) is fixedly connected inside the barrel body (1) in a threaded engagement mode, a plurality of observation ports (21) are formed in the side wall of the barrel body (1), and scale marks are marked on the side wall of each observation port (21).