CN213465032U - Medical liquid collecting piece - Google Patents

Abstract

The utility model relates to the field of medical equipment, a medical liquid piece of adopting is disclosed, include: the flow guide pipe is used for guiding the target collection liquid; the liquid sampling needle is connected to the pipe end of the flow guide pipe and used for introducing target sampling liquid into the flow guide pipe; the liquid collecting part is formed in the pipe section of the flow guide pipe and is internally provided with a pre-negative pressure liquid collecting cavity with constant volume; and the switch control part can control the connection and disconnection between the pre-negative pressure liquid collecting cavity and the needle cavity of the liquid sampling needle. Medical personnel can collect quantitative target collection liquid through this medical liquid collection piece under the condition that breaks away from household utensils such as liquid collecting bottle.

Description

Medical liquid collecting piece

Technical Field

The utility model relates to the technical field of medical equipment, specifically, relate to a medical liquid piece of adopting.

Background

Bloodstream infections are among the serious systemic infectious diseases and are one of the leading causes of death from infectious diseases. The diagnosis and treatment of bloodstream infection need to depend on accurate blood culture detection results, and the blood collection amount brings serious trouble to the identification of true and false positive of blood culture, and is one of the main factors influencing the blood culture results.

At present, when a medical worker collects a blood sample required by blood culture, a disposable butterfly blood taking needle is generally adopted to be matched with an aerobic bottle and an anaerobic bottle required by the blood culture to collect the blood sample, the blood sampling amount of each bottle of an adult is definitely regulated to be 8ml to 10ml according to WS/T503-2017 clinical microbiological laboratory blood culture operation specifications, and the medical worker collects the 8ml to 10ml blood sample through visual estimation due to the fact that the negative pressure capacity in the existing aerobic bottle and the existing anaerobic bottle is 40ml, namely the existing disposable butterfly blood taking needle is required to be connected with a negative pressure liquid collecting container to collect target liquid and cannot collect quantitative target liquid.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough and defect among the prior art, providing a medical liquid piece of adopting, this medical liquid piece of adopting gathers quantitative target liquid under the condition that breaks away from negative pressure collection liquid container.

In order to achieve the above object, the utility model provides a medical liquid collecting piece, include:

the flow guide pipe is used for guiding the target collection liquid;

the liquid collecting needle is connected to the pipe end of the flow guide pipe and used for introducing the target collecting liquid into the flow guide pipe;

the liquid collecting part is formed in the pipe section of the flow guide pipe and is internally provided with a pre-negative pressure liquid collecting cavity with constant volume;

the switch control part can control the connection and disconnection between the pre-negative pressure liquid collecting cavity and the needle cavity of the liquid collecting needle.

Preferably, the medical fluid collection member includes a plurality of fluid collection portions formed in the tube sections of the flow guide tube and arranged in series in the tube length direction.

Preferably, the medical liquid collecting part comprises a plurality of switch control parts which are positioned on the flow guide pipe and are sequentially arranged at intervals along the length direction of the pipe, and at least one liquid collecting part is arranged between the adjacent switch control parts.

Preferably, the medical liquid collecting piece further comprises a liquid discharging needle for discharging the target collecting liquid in the liquid collecting part, and two pipe ends of the flow guide pipe are respectively connected with the liquid collecting needle and the liquid discharging needle.

Preferably, the switch control part is also arranged to be used for controlling the connection and disconnection between the pre-negative pressure liquid collecting cavity and the needle cavity of the liquid discharging needle.

Preferably, the medical liquid collecting piece further comprises a one-way valve arranged between the liquid collecting part and the liquid collecting needle.

Preferably, the medical fluid collection piece further comprises a flow control valve arranged between the fluid collection part and the fluid collection needle.

Preferably, the switch control is a clip.

Preferably, the medical blood collecting piece is a medical blood collecting piece for collecting blood.

Preferably, the volume of the single pre-negative pressure liquid collecting cavity is 8ml to 10 ml.

Through the technical scheme, medical personnel collect liquid to the collection liquid portion with quantitative target earlier under the condition that breaks away from the collecting container. A plurality of liquid collecting parts in the flow guide pipe section not only can increase liquid collecting amount at one time, but also can collect target collecting liquid in different liquid collecting parts in advance, and the target collecting liquid in different liquid collecting parts is convenient to release to different liquid collecting containers in the follow-up process. The flow control valve and the single valve on the flow guide pipe can respectively control the flow speed of the collected target liquid and prevent the backflow of the target liquid. A plurality of switch control spare on the honeycomb duct can control the break-make when adopting liquid, can control the break-make that releases target collection liquid again, also can control the break-make between the album liquid portion, makes things convenient for medical personnel to gather the target in the liquid portion with different and release to different collection liquid containers in. Particularly, the volume of a single pre-negative pressure liquid collecting cavity can be 8ml to 10ml, so that medical staff can collect quantitative blood samples required by blood culture for blood culture conveniently.

Drawings

Fig. 1 is a schematic view of a medical fluid collecting member according to an embodiment of the present invention.

Description of the reference numerals

1 honeycomb duct 2 liquid sampling needle

3 liquid collecting part 4 switch control part

5 liquid discharge needle 6 one-way valve

7 flow control valve

31 first liquid collecting part 32 second liquid collecting part

41 first switch control member 42 second switch control member

43 third switch control

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present invention.

Referring to fig. 1, in an embodiment of the present invention, a medical fluid collecting member is provided, including:

the flow guide pipe 1 is used for guiding the target collection liquid;

the liquid collecting needle 2 is connected to the pipe end of the flow guide pipe 1 and used for introducing the target collecting liquid into the flow guide pipe;

a liquid collecting part 3 which is formed in the pipe section of the flow guide pipe 1 and is internally provided with a pre-negative pressure liquid collecting cavity with constant volume;

and the switch control part 4 can control the connection and disconnection between the pre-negative pressure liquid collecting cavity and the needle cavity of the liquid collecting needle 2.

Through setting up above-mentioned structure, when adopting liquid, medical personnel can pierce the target with adopting liquid needle 2 earlier, opens switch control 4 again, because the negative pressure effect of negative pressure collection liquid intracavity in advance, the target is gathered liquid and is flowed into the liquid intracavity is collected to the invariable volumetric negative pressure in collection liquid portion 3 in advance through honeycomb duct 1 to gather target collection liquid, can realize gathering quantitative target collection liquid under the condition of household utensils such as the collection liquid bottle.

In the embodiment of the present invention, the medical fluid collecting member may include a plurality of fluid collecting portions 3 formed in the pipe section of the fluid guide pipe 1 and sequentially connected in series along the length direction of the pipe. For example, the liquid collecting part 3 may include a first liquid collecting part 31 and a second liquid collecting part 32, and at this time, the target collection liquid may be collected into the pre-negative pressure cavities in the first liquid collecting part 31 and the second liquid collecting part 32, so that not only the disposable liquid collection amount may be increased, but also the target collection liquid may be pre-collected in different liquid collecting parts 3, which facilitates subsequent release into different liquid collecting containers, respectively.

The embodiment of the utility model provides an in, medical liquid sampling spare is equipped with at least one between adjacent switch control 4 including being located honeycomb duct 1 and a plurality of switch control 4 that set up along the pipe length direction interval in proper order the liquid portion 3 that collects. For example, the switching controller 4 may include a first switching controller 41, a second switching controller 42, and a third switching controller 43, the first liquid-collecting part 31 is disposed between the first switching controller 41 and the second switching controller 42, and the second liquid-collecting part 32 is disposed between the second switching controller 42 and the third switching controller 43; the first switch control piece 41 can control the connection and disconnection between the liquid collecting needle 2 and the first liquid collecting part 31, the second switch control piece 42 can control the connection and disconnection between the first liquid collecting part 31 and the second liquid collecting part 32, and the third control piece 43 can control the connection and disconnection between the second liquid collecting part 32 and the negative pressure liquid collecting container, so that the effect that the plurality of control switch pieces 4 respectively control the connection and disconnection time between the plurality of liquid collecting parts 3 can be achieved, and the target collected liquid in the plurality of liquid collecting parts 3 can be conveniently released into different vessels.

The utility model discloses an in the embodiment, medical liquid sampling spare still can be including being used for the outer bleeder needle 5 that arranges of target acquisition liquid in the portion 3 that collects liquid, and liquid sampling needle 2 and bleeder needle 5 are connected respectively to two pipe ends of honeycomb duct. Under the structure, the liquid discharge needle 5 can be inserted into different liquid collecting containers so as to discharge the quantitative target collection liquid in the pre-negative pressure liquid collecting cavity in the liquid collecting part 3 into different liquid collecting containers.

In the embodiment of the utility model, the switch control member 4 can also be set to be used for controlling the on-off between the needle chamber of the pre-negative pressure liquid collecting chamber and the liquid discharging needle 5. For example, when the target collected liquid needs to be released, the third switch control member 43 is opened, and the target collected liquid in the pre-negative pressure liquid collecting cavity in the second liquid collecting part 32 is released into the liquid collecting container through the liquid discharge needle 5; when the release of the target collection liquid is required to be stopped, the third switch control part 43 is closed, and the target collection liquid in the pre-negative pressure liquid collection cavity in the second liquid collection part 32 is stopped to be released into the liquid collection container, so that the effect of controlling the release time of the target collection liquid is achieved.

In the embodiment of the utility model, the medical liquid collecting piece can also comprise a one-way valve 6 arranged between the liquid collecting part 3 and the liquid collecting needle 2. For example, a check valve 6 may be provided between the first liquid collecting portion 31 and the sampling needle 2 to prevent the target sampling liquid from flowing back only from the sampling needle 1 to the pre-negative pressure liquid collecting chamber in the first liquid collecting portion 31 in one direction.

In the embodiment of the present invention, the medical fluid collecting member may further include a flow control valve 7 disposed between the fluid collecting portion 3 and the fluid collecting needle, for example, the flow control valve 7 may be disposed between the first fluid collecting portion 31 and the fluid collecting needle 2, so as to control the speed of the fluid collected by the target flowing into the fluid collecting chamber with the pre-negative pressure in the first fluid collecting portion 31 and the second fluid collecting portion 32, thereby achieving the effect of adjustable speed.

The utility model discloses an in the embodiment, switch control 4 can include the clip, has easily draw materials and easily realize advantages such as switch operation, can simplify the medical structure of adopting liquid spare with the reduce cost and the production degree of difficulty, and the medical personnel of being more convenient for swiftly control the break-make of honeycomb duct 1.

The embodiment of the utility model provides an in, medical adopting liquid spare is the medical blood sampling spare that is used for gathering blood, and the medical personnel of being convenient for use this medical adopting liquid spare to gather the blood sample.

The utility model discloses an in the embodiment, the volume of single negative pressure collection liquid chamber in advance is 8ml to 10ml to can gather 8ml to 10ml blood sample quantitatively and be used for the blood culture. For example, the volume of the pre-negative pressure liquid collecting cavities in the first liquid collecting part 31 and the second liquid collecting part 32 can be set to be 9ml so as to meet the adult blood collection quantity requirement clearly specified by WS/T503-2017 clinical microorganism laboratory blood culture operation specifications. When the first liquid collecting part 31 and the second liquid collecting part 32 are filled with blood samples, and the second switch control part 42 and the third switch control part 43 are closed, the liquid collecting needle 5 is inserted into a negative pressure anaerobic bottle required by blood culture, the third switch control part 43 is opened to enable all the blood samples in the second liquid collecting part 32 to flow into the anaerobic bottle, then the liquid collecting needle 5 is pulled out to be inserted into a negative pressure aerobic bottle required by the blood culture, and the second switch control part 42 is opened to enable all the blood samples in the first liquid collecting part 31 to flow into the aerobic bottle, so that quantitative blood samples required by two containers of the blood anaerobic bottle and the aerobic bottle can be collected at one time.

Referring to fig. 1, the following will explain the operation of the liquid collecting member of the present invention applied to blood specimen collection in blood culture. At the beginning, the first switch control member 41 and the third switch control member 43 are in a locking state, and the second switch control member 42 is in a releasing state, so as to ensure the negative pressure in the pre-negative pressure liquid collecting cavities in the first liquid collecting part 31 and the second liquid collecting part 32. In order to meet the adult blood collection requirement which is clearly specified by WS/T503-2017 clinical microorganism laboratory blood culture operation specifications, the volume of a single pre-negative pressure liquid collecting cavity is set to be 8ml to 10 ml.

When needing to gather the blood sample, medical personnel can prick the patient with adopting liquid needle 2 earlier, open first switch control 41 to put through first album of liquid portion 31 and second collection of liquid portion 32 and blood taking needle 2. Due to the negative pressure effect in the pre-negative pressure liquid collecting cavity, the blood sample flows into the first liquid collecting part 31 and the second liquid collecting part 32 through the guide pipe 1, the quantitative blood sample is collected to the first liquid collecting part 31 and the second liquid collecting part 32 under the condition of being separated from an aerobic bottle and an anaerobic bottle required by blood culture, and the liquid collecting needle 2 can be pulled out after the first liquid collecting part 31 and the second liquid collecting part 32 are full of the blood sample. When the blood sample passes through the guide tube 1, the flow rate of the blood sample can be adjusted through the flow control valve 7 so as to control the speed of collecting the blood sample. The check valve 6 between the blood collection needle 2 and the first liquid collection part 31 prevents the blood sample from flowing backward.

When the collected blood sample needs to be released to the vessel, the second switch control member 42 is first locked to separate the first liquid collecting portion 31 from the second liquid collecting portion 32. Then, the liquid discharge needle 5 is connected to the negative pressure anaerobic bottle, the third control member 43 is opened, and the blood sample measured in the second liquid collecting part 32 flows into the anaerobic bottle under the action of the negative pressure in the anaerobic bottle. After the whole blood sample in the second liquid collecting part 32 flows into the anaerobic bottle, the liquid discharging needle 5 is connected with the negative pressure aerobic bottle, the second control part 42 is opened, and the blood sample in the first liquid collecting part 31 is quantitatively flowed into the aerobic bottle under the action of the negative pressure in the aerobic bottle. The on-off of the liquid collecting part 3 is controlled by the switch control part 4, so that the blood samples in the plurality of liquid collecting parts 3 are released into different liquid collecting containers. The utility model discloses an in the embodiment, release respectively in first album of liquid portion 31 and second album of liquid portion 32 quantitative 8ml to 10 ml's blood sample to blood culture required aerobic bottle and anaerobic bottle, avoided medical personnel to have gathered too much or too little blood sample because of the mode of range estimation, improved blood culture accuracy, win the time for rescuing sick and dangerous patient.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A medical fluid collection member, comprising:

the flow guide pipe is used for guiding the target collection liquid;

the liquid sampling needle is connected to the pipe end of the flow guide pipe and used for introducing target sampling liquid into the flow guide pipe;

the liquid collecting part is formed in the pipe section of the flow guide pipe and is internally provided with a pre-negative pressure liquid collecting cavity with constant volume;

and the switch control part can control the connection and disconnection between the pre-negative pressure liquid collecting cavity and the needle cavity of the liquid sampling needle.

2. The medical fluid collection member according to claim 1, comprising a plurality of the fluid collection portions formed in a tube section of the flow guide tube and arranged in series in the tube length direction in this order.

3. The medical fluid collection member according to claim 2, wherein the medical fluid collection member comprises a plurality of the switch control members which are arranged on the fluid guide tube at intervals in sequence along the length direction of the tube, and at least one fluid collection portion is arranged between the adjacent switch control members.

4. The medical fluid collection piece according to claim 1, further comprising a drainage needle for discharging a target collection fluid in the fluid collection portion, wherein two tube ends of the flow guide tube are respectively connected to the fluid collection needle and the drainage needle.

5. The medical liquid collecting piece as claimed in claim 4, wherein the switch control piece is further arranged to be used for controlling the connection and disconnection between the pre-negative pressure liquid collecting cavity and the needle cavity of the liquid discharging needle.

6. The medical fluid collection member according to claim 1, further comprising a one-way valve disposed between the fluid collection portion and the fluid collection needle.

7. The medical fluid collection member according to claim 1, further comprising a flow control valve disposed between the fluid collection portion and the collection needle.

8. The medical fluid collection member according to claim 1, wherein the switch control member is a clip.

9. The medical fluid collection member according to any one of claims 1 to 8, wherein the medical fluid collection member is a medical blood collection member for collecting blood.

10. The medical fluid collection element according to claim 9, wherein the volume of a single pre-negative pressure fluid collection chamber is 8ml to 10 ml.

Images