CN218684403U - Double-channel closed safety blood sampling device - Google Patents

Abstract

The utility model discloses a double-channel closed type safe blood sampling device, which comprises a scalp needle, a first injector and a second injector, wherein the scalp needle is provided with a main liquid pipe which is connected with a bypass pipe; the first injector is connected to the free end of the main liquid pipe in a pluggable mode and used for collecting a first blood sample; the second injector is connected to the free end of the bypass tube in a pluggable manner and is used for collecting a second blood sample; and the closed valve is arranged at the free end of the bypass pipe and used for controlling the bypass pipe to be opened or closed. According to the utility model provides a binary channels closed safety blood sampling device ensures that whole process aseptic technique is accomplished, and blood sample high quality can not be contaminated, and the blood gas analysis result is accurate reliable, and in addition, for traditional blood sampling mode, its operation is extremely simple and convenient, to medical personnel, will alleviate the burden of its work.

Description

Double-channel closed safety blood sampling device

Technical Field

The utility model relates to a blood sampling device especially relates to a binary channels closed safety blood sampling device.

Background

Blood sample analysis is one of the most common medical diagnostic tools. In some blood sampling processes, a scalp needle is usually connected with an injector for collection, however, in some blood sampling requirements, a plurality of blood samples are usually required to be collected for different detection items, and the different detection items also have different requirements on blood quality.

In the case of blood collection for newborn infants, in some cases, blood is collected for ordinary tests such as blood routine, blood culture, and the like, and at the same time, arterial blood is collected for arterial blood gas analysis. In arterial blood gas analysis, the requirement on blood quality is high, and air contact is avoided.

At present, when conventional blood detection and arterial blood gas analysis are required, a large-capacity syringe is connected to a hose of a scalp needle, the scalp needle firstly punctures a corresponding arterial blood sampling position to puncture, then the scalp needle is pulled out and inserted into a rubber plug, the scalp needle is sealed by the rubber plug to extract a certain amount of blood samples into the large-capacity syringe, then the large-capacity syringe which finishes collecting the blood samples is pulled out, the blood samples in the large-capacity syringe are injected into a sample tube, then a small-capacity syringe (generally 1 ml) is connected onto the hose again, the scalp needle is pulled out from the rubber plug, the small-capacity syringe is utilized to draw the blood reserved in the scalp needle and the hose into the small-capacity syringe, the blood samples extracted from the small-capacity syringe serve as samples for arterial blood gas analysis, and the samples in the large-capacity syringe which are collected firstly serve as samples for conventional detection items.

The inventor finds that the blood sample for arterial blood gas analysis has the following disadvantages in medical care work for a long time: when the scalp needle is pulled out of a human body, air can enter the scalp needle and the hose, and when the scalp needle is pulled out of the rubber plug and blood reserved in the scalp needle and the hose is extracted through the small-capacity syringe, air can enter the hose and the small-capacity syringe from the scalp needle, gas components in the air, such as carbon dioxide and the like, enter a blood sample, the blood gas analysis result can be influenced, and the blood pollution risk is increased. In addition, the operation process is complicated, and depends on the skillful degree of aseptic operation of medical personnel, under the condition of improper operation, blood pollution is more likely to occur, the analysis result is inaccurate, and the like.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving one of the technical problems in the related art at least to a certain extent. Therefore, an object of the present invention is to provide a dual-channel closed type safety blood sampling device.

To achieve the above object, on the one hand, according to the utility model discloses a binary channels closed safety blood sampling device, include:

the scalp needle is provided with a main liquid pipe, and a bypass pipe is connected to the main liquid pipe;

the first injector is connected to the free end of the main liquid pipe in a pluggable mode and used for collecting a first blood sample;

the second injector is connected to the free end of the bypass tube in a pluggable mode and is used for collecting a second blood sample;

and the sealing valve is arranged at the free end of the bypass pipe and used for controlling the bypass pipe to be opened or closed.

According to the embodiment of the utility model provides a binary channels closed safety blood sampling device, a bypass pipe is connected on main liquid pipe, connect the second syringe on bypass pipe, and, set up the closed valve, in the blood sampling, utilize first syringe to gather first blood sample earlier, can regard as the sample of conventional detection, recycle second syringe and aspirate 1ml second blood sample, can regard as the sample that artery blood gas detected, close the closed valve door after that, extract scalp acupuncture from patient's body surface, and finally, after transferring it to the analysis room, extract the second syringe, extrude the second blood sample in the second syringe and carry out blood gas analysis, in the whole sampling process, once only extract first blood sample and second blood sample, and human transfer to the second syringe in the second blood sample is direct, also obstructed the entering of air after sealing through the closed valve, ensure that whole process aseptic technique is accomplished, blood sample quality is high, can not be contaminated, blood gas analysis result is accurate reliable, furthermore, for the blood sampling mode of its easy and simple to handle, to the staff's burden has alleviateed.

In addition, according to the utility model discloses the two-channel closed safety blood sampling device of above-mentioned embodiment can also have following additional technical characterstic:

according to the utility model discloses an embodiment, the closing valve is still used for the control to adjust the aperture size of other liquid pipe.

According to the utility model discloses an embodiment, the internal diameter of main liquid pipe is greater than the internal diameter of bypass pipe to through bypass pipe does the collection arterial blood, the second syringe capacity is less than first syringe capacity.

According to the utility model discloses an embodiment, the close valve includes:

the pipe seat is provided with a pipe hole and a side hole, the pipe hole penetrates through the pipe seat along the axial direction, the side liquid passes through the pipe hole, and the side hole is formed in the side wall of the pipe seat and penetrates to the pipe hole along the radial direction;

a closure core slidably disposed through the side bore;

the operation knob is in threaded connection with the pipe seat and is connected with the intercepting core, and is used for a user to rotate and operate to drive the intercepting core to slide along the radial direction of the pipe hole so as to apply pressure to the bypass pipe and adjust the opening of the bypass pipe.

According to an embodiment of the present invention, the tube socket includes:

a sleeve portion through which the tube hole is formed and which axially penetrates;

a boss portion formed on an outer peripheral wall of the sleeve portion and protruding in a radial direction, the side hole being formed on the boss portion and penetrating to the tube hole in the radial direction;

wherein, the side opening has smooth wall section and screw thread section, smooth wall section is located and is close to the one end of tube hole, the core that dams can be established smoothly smooth wall section, the screw thread section is located keep away from the one end of tube hole, the operation knob has screw rod portion, screw rod portion with screw thread section threaded connection.

According to the utility model discloses an embodiment, the lower extreme of damming core has the pressure head of a style of calligraphy, the pressure head is in radial size is more than or equal to the external diameter of other liquid pipe.

According to the utility model discloses an embodiment, boss portion is equipped with the pivot hole that the axial runs through, the core dams has axially extended axostylus axostyle, the axostylus axostyle with pivot hole normal running fit, just the upper end of axostylus axostyle has backstop portion, backstop portion backstop is in the operation knob top, the lower extreme of screw rod portion with the upper end of core dams offsets.

According to the utility model discloses an embodiment, the outer wall of damming core is equipped with along axially extending's spout, the inner wall of smooth wall section be equipped with spout sliding fit's gib block.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of a two-channel closed safety blood sampling device according to an embodiment of the present invention;

FIG. 2 is an exploded view of the dual-channel sealed safety blood sampling device according to the embodiment of the present invention;

FIG. 3 is a sectional view of the closed valve position of the two-channel closed safety blood sampling device according to the embodiment of the present invention;

FIG. 4 is an exploded view of a sealing valve of the two-channel sealed safety blood sampling device according to the embodiment of the present invention;

fig. 5 is a specific exploded view of the sealing valve of the dual-channel sealed safety blood sampling device according to the embodiment of the present invention.

Reference numerals:

10. scalp acupuncture;

101. a main liquid pipe;

102. a bypass pipe;

11. closing the valve;

20. a first syringe;

30. a second syringe;

301. a tube holder;

301a, a sleeve portion;

301b, a boss portion;

301c, guide bars;

h30, pipe holes;

h31, side holes;

h31a, a threaded segment;

h31b, a light wall section;

302. a closure core;

302a, a shaft;

302b, a linear pressure head;

302c, a stopper;

h32, a chute;

303. an operation knob;

303a, a screw part;

h33, pivot hole.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

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", "circumferential", "radial", and the like, indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. 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 disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The two-channel closed safety blood sampling device according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 5, a dual-channel closed safety blood sampling device according to an embodiment of the present invention includes a scalp needle 10, a first syringe 20, and a second syringe 30.

Specifically, scalp needle 10 has a main tube 101 to which a bypass tube 102 is connected to main tube 101.

A first syringe 20 is removably connected to a free end of the main liquid pipe 101 for collecting a first blood sample, which is generally used as a sample for a routine test item, such as a routine test, a biochemical test, and the like, and the first syringe 20 is a common syringe and has a relatively large capacity.

A second syringe 30 is removably connected to the free end of the bypass tube 102 for collecting a second blood sample, typically 1ml, for arterial blood gas analysis, and the second syringe 30 is a small-capacity syringe, such as a 1ml syringe.

The closing valve 11 is disposed at the free end of the bypass tube 102 for controlling the opening or closing of the bypass tube 102, after the first syringe 20 and the second syringe 30 have been used to draw blood, the scalp needle 10 can be pulled out from the body surface of the patient after the bypass tube 102 is closed by the closing valve 11, so as to prevent air from entering the bypass tube 102 from the scalp needle 10 and entering the second syringe 30 from the bypass tube 102 to contaminate the second blood sample.

According to the embodiment of the utility model provides a two-channel closed safety blood sampling device, connect a bypass pipe 102 on main liquid pipe 101, connect second syringe 30 on bypass pipe 102, and, set up closed valve 11, in the blood sampling, utilize first syringe 20 to gather first blood sample earlier, can regard as the sample of conventional detection, reuse second syringe 30 to aspirate 1ml second blood sample, can regard as the sample of arterial blood gas detection, close closed valve 11 afterwards, extract scalp acupuncture 10 from patient's body surface, finally, after it moves to the analysis room, extract second syringe 30, extrude the second blood sample in second syringe 30 and carry out the blood gas analysis, in the whole sampling process, once only draw first blood sample and second blood sample, and the second blood sample directly shifts to second syringe 30 from the human body, also obstructed the entering of air after closing through closed valve 11, ensure that whole process aseptic operation is accomplished, blood sample quality is high, can not be contaminated, the blood gas analysis result is accurate reliable, in addition, for traditional blood sampling mode, and the operation personnel's burden has been alleviateed it extremely to medical personnel.

It should be noted that, when aiming at different use groups, the scalp needle 10 can adopt a relatively adaptive diameter, for example, when aiming at a newborn baby, the scalp needle 10 with a relatively smaller diameter can be configured, so that the two-channel closed safety blood sampling device can better adapt to the blood sampling of the newborn baby.

The utility model discloses an embodiment, seal valve 11 still is used for control to adjust the aperture size of other liquid pipe 102, in concrete use, can adjust other liquid pipe 102's aperture size through this seal valve 11 to adapt to the requirement of the volume of taking a blood sample, for example under the condition very few to the volume of taking a blood sample, because the diameter of hose is difficult to process less, so, adjust other liquid pipe 102's aperture through seal valve 11, can adapt to the volume of taking a blood sample requirement better, control when making things convenient for medical personnel to take a blood sample and gather required volume of taking a blood sample.

Advantageously, the main liquid pipe 101 has an inner diameter larger than that of the bypass pipe 102 for collecting arterial blood through the bypass pipe 102, the second syringe 30 has a smaller capacity than that of the first syringe 20, and since arterial blood gas analysis requires a minimum amount of blood to be collected, typically 1ml, the inner diameter of the bypass pipe 102 is configured to be smaller than that of the main liquid pipe 101, thereby facilitating the control of the amount of blood collected in the first blood sample and the second blood sample required for collection.

Referring to fig. 3 to 5, in some embodiments of the present invention, the shut-off valve 11 includes a tube holder 301, a core 302 and an operating knob 303, the tube holder 301 has a tube hole H30 and a side hole H31, the tube hole H30 axially penetrates through the tube holder 301, the bypass tube 102 passes through the tube hole H30, and the side hole H31 is formed in a side wall of the tube holder 301 and radially penetrates to the tube hole H30.

A closure core 302 is slidably inserted through the side bore H31. An operating knob 303 is screwed on the pipe seat 301 and connected to the intercepting core 302, for a user to rotate and operate to drive the intercepting core 302 to slide along the radial direction of the pipe hole H30, so as to press the bypass pipe 102 to adjust the opening degree of the bypass pipe 102.

That is, the tube holder 301 is inserted through the tube hole H30 on the bypass tube 102, the cut-off core 302 is slidably inserted into the side hole H31 of the tube holder 301 and can slide along the radial direction of the tube hole H30, the operation knob 303 is screwed on the tube holder 301, in use, after the second syringe 30 collects a second blood sample with a required amount, before the scalp needle 10 is not pulled out, the medical staff operates the operation knob 303, the operation knob 303 drives the cut-off core 302 to move radially inwards, and then the cut-off core 302 is used for squeezing the bypass tube 102, so that the side tube 102 is squeezed and flattened to cut off the flow. After the bypass tube 102 is closed, the scalp acupuncture 10 on the human body is pulled out.

In this embodiment, adopt the seal valve 11 of above-mentioned structure, it can independently wear to establish and install on other liquid pipe 102, need not to improve to other structure parts, and overall structure is simple, in addition, utilizes the rotatory operation of operating the knob to control the core 302 that dams to opening and close and the aperture of other liquid pipe 102 and open, and its operation is very convenient to, it is effectual to dam and close, separates reliably effectively to the air blocking.

In one embodiment of the present invention, the socket 301 includes a sleeve portion 301a and a boss portion 301b, and the tube hole H30 is formed in the sleeve portion 301a and axially penetrates the sleeve portion 301a.

A boss portion 301b formed on the outer peripheral wall of the sleeve portion 301a and protruding in the radial direction, and the side hole H31 formed on the boss portion 301b and penetrating in the radial direction to the tube hole. The side hole H31 has a smooth wall section H31b and a threaded section H31a, the smooth wall section H31b is located near one end of the tube hole H30, the closure core 302 can be slidingly arranged on the smooth wall section H31b, the threaded section H31a is located at one end far away from the tube hole H30, the operation knob 303 has a screw portion 303a, and the screw portion 303a is in threaded connection with the threaded section H31 a.

In this embodiment, the boss portion 301b is formed on the outer peripheral wall of the sleeve portion 301a, the side hole H31 in the boss portion 301b is set to be the smooth wall section H31b and the threaded section H31a, the light wall section H31b is then slidably engaged with the shutoff core 302, and the threaded section H31a is threadedly engaged with the threaded section 303a of the operation knob 303, so that, in use, when the operation knob 303 is rotated, the operation knob 303 can axially move along the side hole H31, and further the shutoff core 302 is pushed to slide. In addition, simple structure, convenient assembling.

Preferably, the lower end of the intercepting core 302 is provided with a linear pressure head, the size of the pressure head in the radial direction is larger than or equal to the outer diameter of the bypass pipe 102, and the linear pressure head 302b is adopted to extrude the bypass pipe 102, so that the local position of the bypass pipe 102 can be easily sealed to form a reliable closed intercepting state, and a better intercepting closing effect is achieved.

In an embodiment of the present invention, the boss portion 301b is provided with a pivot hole H33 passing through axially, the intercepting core 302 has a shaft rod 302a extending axially, the shaft rod 302a is rotatably fitted with the pivot hole H33, and the upper end of the shaft rod 302a has a stopping portion 302c, the stopping portion 302c stops above the operation knob 303, and the lower end of the screw rod portion 303a abuts against the upper end of the intercepting core 302.

That is to say, the upper and lower ends of the operating knob 303 are located just between the stopping portion 302c and the intercepting core 302, and the shaft lever 302a is matched with the pivot hole H33, so that the operating knob 303 and the intercepting core 302 can rotate relatively, and when the operating knob 303 rotates, the intercepting core 302 does not necessarily rotate along with the operating knob, thereby improving the reliability and stability of the squeezing action of the intercepting core 302 on the bypass pipe 102.

More advantageously, the outer wall of the intercepting core 302 is provided with a sliding groove H32 extending along the axial direction, the inner wall of the light wall section H31b is provided with a guide strip 301c in sliding fit with the sliding groove H32, that is, the intercepting core 302 and the tube seat 301 are circumferentially fixed relatively, so that when the operation knob 303 rotates, the intercepting core 302 keeps circumferential motionless and axially slides, the linear pressure head 302b is always vertically pressed on the bypass pipe 102, and then continuously extrudes the bypass pipe 102, the opening degree is gradually reduced, a stable and reliable opening degree adjusting effect is achieved, and in addition, by the sliding fit of the guide strip 301c and the sliding groove H32, the sliding of the intercepting core 302 can be ensured to be more smooth and reliable.

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.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (8)

1. A two-channel closed type safe blood sampling device is characterized by comprising:

the scalp needle is provided with a main liquid pipe, and a bypass pipe is connected to the main liquid pipe;

the first injector is connected to the free end of the main liquid pipe in a pluggable mode and used for collecting a first blood sample;

the second injector is connected to the free end of the bypass tube in a pluggable mode and is used for collecting a second blood sample;

and the sealing valve is arranged at the free end of the bypass pipe and used for controlling the bypass pipe to be opened or closed.

2. The dual-channel sealed safety blood sampling device as claimed in claim 1, wherein the sealing valve is further used for controlling and adjusting the opening of the bypass tube.

3. The dual channel closed safety blood collection device as claimed in claim 1, wherein the main tube has an inner diameter larger than that of the bypass tube for collecting arterial blood through the bypass tube, and the second syringe has a volume smaller than that of the first syringe.

4. The dual channel closed safety blood collection device of claim 1, wherein the closure valve comprises:

the pipe seat is provided with a pipe hole and a side hole, the pipe hole penetrates through the pipe seat along the axial direction, the side liquid passes through the pipe hole, and the side hole is formed in the side wall of the pipe seat and penetrates to the pipe hole along the radial direction;

a closure core slidably disposed through the side bore;

and the operation knob is in threaded connection with the pipe seat and is connected with the intercepting core, so that a user can rotate the operation knob to drive the intercepting core to slide along the radial direction of the pipe hole, and the operation knob can apply pressure to the side liquid pipe to adjust the opening of the side liquid pipe.

5. The dual channel closed safety blood collection device of claim 4, wherein the stem comprises:

a sleeve portion through which the tube hole is formed and which axially penetrates;

a boss portion formed on an outer peripheral wall of the sleeve portion and protruding in a radial direction, the side hole being formed on the boss portion and penetrating to the tube hole in the radial direction;

wherein, the side opening has smooth wall section and screw thread section, smooth wall section is located and is close to the one end of tube hole, the core that dams can be established smoothly smooth wall section, the screw thread section is located keep away from the one end of tube hole, the operation knob has screw rod portion, screw rod portion with screw thread section threaded connection.

6. The two-channel closed safety blood sampling device as claimed in claim 5, wherein the lower end of the closure core has a head in the shape of a straight line, and the size of the head in the radial direction is greater than or equal to the outer diameter of the bypass tube.

7. The two-channel sealed safety blood collection device according to claim 5, wherein the boss portion is provided with a pivot hole extending axially therethrough, the shut-off core has a shaft extending axially, the shaft is rotatably fitted in the pivot hole, and an upper end of the shaft has a stopper portion stopped above the operation knob, and a lower end of the screw portion abuts against an upper end of the shut-off core.

8. The two-channel closed safety blood sampling device as claimed in claim 6, wherein the outer wall of the closure core is provided with a sliding groove extending along the axial direction, and the inner wall of the light wall section is provided with a guide strip slidably engaged with the sliding groove.

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