CN223365553U - Disposable venous blood taking needle - Google Patents
Disposable venous blood taking needleInfo
- Publication number
- CN223365553U CN223365553U CN202422402870.3U CN202422402870U CN223365553U CN 223365553 U CN223365553 U CN 223365553U CN 202422402870 U CN202422402870 U CN 202422402870U CN 223365553 U CN223365553 U CN 223365553U
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- blood
- puncture needle
- needle
- sleeve
- intravenous
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Abstract
The utility model discloses a disposable venous blood taking needle, and relates to the technical field of blood taking apparatuses. The disposable vein blood taking needle comprises a hose, a vein puncture needle protecting sleeve, a bottle stopper puncture needle and a blood blocking sleeve, wherein the vein puncture needle and the bottle stopper puncture needle are respectively connected to two ends of the hose, the blood blocking sleeve is sleeved on the outer side of the bottle stopper puncture needle, the outer diameter of the blood blocking sleeve is identical to the inner diameter of the vein puncture needle protecting sleeve, the outer end of the blood blocking sleeve is conical and wraps the bottle stopper puncture needle, the vein puncture needle protecting sleeve is inserted outside the bottle stopper puncture needle and compresses the blood blocking sleeve, and part of the bottle stopper puncture needle is exposed in the vein puncture needle protecting sleeve and used for exhausting the disposable vein blood taking needle. The intravenous puncture needle tube protective sleeve is used for discharging the gas in the intravenous blood taking needle, so that the problem of insufficient blood taking amount of the first tube blood sample caused by incapability of exhausting the blood taking needle during intravenous blood taking is effectively solved.
Description
Technical Field
The utility model relates to the technical field of blood sampling devices, in particular to a disposable intravenous blood sampling needle.
Background
At present, most hospitals use disposable venous blood collection needles/disposable safety venous blood collection needles to collect venous blood samples, the blood collection needles are divided into hard connection and soft connection (butterfly wing needles), the hard connection is rarely used in clinic because blood return is not easy to see, and the soft connection (butterfly wing needles) is to connect a venous puncture needle with a needle tube (bottle stopper puncture needle) at a butt joint end through a transparent hose so as to check the blood return and improve the puncture success rate.
However, the existing flexible connection type blood taking needle has the problems that the connecting tube contains 0.2-0.3 ml of space, when a vein puncture needle is inserted into a blood vessel during blood taking, blood does not flow into a hose, but flows outwards after the bottle stopper puncture needle is inserted into the blood taking tube, so that after the blood taking tube is inserted, gas in the hose flows into the blood taking tube first, then the blood enters the blood taking tube, and the gas in the blood taking tube cannot be discharged in advance, so that the blood taking amount entering the blood taking tube is insufficient, the reliability of a detection result is influenced, even a defective sample is identified, and the blood needs to be collected again, thereby delaying diagnosis and treatment and increasing the pain of a patient.
Currently, the latest industry standard (WS/T225-2024) 4.1.2.2 e for collection and treatment of clinical chemistry test blood samples, about to be implemented at 1, 11, 2024, requires "for example, intravenous blood collection using a pterygoid needle, the lumen of the hose of which affects the accuracy of the first tube blood collection volume. When the sodium citrate blood collection tube of the blue cap is the first tube for collection, a hemostix should additionally use the blood collection tube without additives or sodium citrate for prefilling, the blood collection tube is not required to be filled and then discarded, and then normal blood collection is carried out, so that the fact that the anticoagulant and the blood in the sodium citrate blood collection tube can reach a specified proportion "means that the blood sample of the first tube is discarded, and then the blood sample is normally tested, the method not only causes the waste of the blood of a patient, but also increases the medical cost of the blood collection tube, and meanwhile, the patient cannot understand that the disputes are easily caused.
Disclosure of utility model
In order to solve the technical problems, the utility model provides a disposable venous blood taking needle, which utilizes a protective sleeve of a venous puncture needle to discharge gas in the venous blood taking needle in advance, so that the venous blood taking is more accurate.
The disposable intravenous blood taking needle comprises a hose, an intravenous puncture needle protecting sleeve, a bottle stopper puncture needle and a blood blocking sleeve, wherein the intravenous puncture needle and the bottle stopper puncture needle are respectively connected to two ends of the hose, the blood blocking sleeve is sleeved on the outer side of the bottle stopper puncture needle, the outer diameter of the blood blocking sleeve is the same as the inner diameter of the intravenous puncture needle protecting sleeve, the outer end of the blood blocking sleeve is conical and wraps the bottle stopper puncture needle, the intravenous puncture needle protecting sleeve is inserted on the outer side of the bottle stopper puncture needle, the blood blocking sleeve is compressed, and part of the bottle stopper puncture needle is exposed in the intravenous puncture needle protecting sleeve and is used for exhausting the disposable intravenous blood taking needle.
Compared with the prior art, the intravenous puncture needle has the beneficial effects that the intravenous puncture needle protective sleeve is limited to have the same inner diameter as the outer diameter of the blood blocking sleeve, the intravenous puncture needle protective sleeve is taken down in the intravenous blood sampling process, the intravenous puncture needle is inserted into a blood vessel of a blood taker, the intravenous puncture needle protective sleeve is lifted at the moment and is aligned to the cone part at the outer end of the blood blocking sleeve, the cone part of the blood blocking sleeve is inserted into the port of the intravenous puncture needle protective sleeve, the intravenous puncture needle protective sleeve is continuously pushed up, the blood blocking sleeve is extruded to shrink, at the moment, the bottle stopper puncture needle part is exposed in the intravenous puncture needle protective sleeve and is communicated with the atmosphere, and through the pressure of venous blood, the blood naturally flows out of and fills the intravenous puncture needle until the gas in the blood sampling needle is completely discharged, then the intravenous puncture needle protective sleeve is removed, a blood sampling tube is connected, the blood sampling tube is collected, the blood waste of a patient is avoided, the blood waste of the blood sampling tube is avoided, the pre-filled, the blood sampling tube is not required to be wasted, the intravenous puncture needle protective sleeve plays a greater role in the function, and the cost is reduced.
Furthermore, the outer side wall of the vein puncture needle protective sleeve is provided with a handheld part, so that the vein puncture needle protective sleeve is convenient to pick, and the medical staff is prevented from being stabbed.
Further, the intravenous blood taking device also comprises a needle seat, one end of the hose is connected with the needle seat, the needle seat is connected with the bottle stopper puncture needle and the blood blocking sleeve, the other end of the hose is connected with a hand-held handle, and the hand-held handle is connected with the intravenous blood taking needle.
Further, in the initial state, the intravenous puncture needle protecting sleeve is clamped on the handheld handle and sleeved outside the intravenous puncture needle, and the length of the intravenous puncture needle protecting sleeve is longer than that of the intravenous puncture needle and the bottle stopper puncture needle.
Drawings
FIG. 1 is a schematic view of the overall structure of a disposable intravenous blood lancet provided by the present utility model;
FIG. 2 is an exploded view of the disposable intravenous lancet provided by the present utility model;
FIG. 3 is a schematic view showing a first use state of the disposable intravenous blood lancet according to the present utility model;
FIG. 4 is a schematic view of a second use state of the disposable intravenous lancet according to the present utility model;
The figure is marked by 1, a hose, 2, a needle seat, 3, a bottle stopper puncture needle, 4, a blood blocking sleeve, 5, a hand-held handle, 6, a vein puncture needle, 7, a vein puncture needle protecting sleeve and 8, a blood blocking sleeve protecting sleeve.
Detailed Description
The present utility model will be described in detail with reference to the following embodiments for a full understanding of the objects, features and effects of the present utility model, but the present utility model is not limited thereto.
As shown in fig. 1 and 2, the disposable intravenous blood taking needle provided by the utility model comprises a hose 1, a needle seat 2, a bottle stopper puncture needle 3, a blood blocking sleeve 4, a blood blocking sleeve protecting sleeve 8, a hand-held handle 5, an intravenous puncture needle 6 and an intravenous puncture needle protecting sleeve 7, wherein one end of the hose 1 is connected with the needle seat 2, the needle seat 2 is connected with one end of the bottle stopper puncture needle 3 and one end of the blood blocking sleeve 4, the outer end of the bottle stopper puncture needle 3 is used for inserting and connecting a blood taking tube, and the blood blocking sleeve 4 is sleeved on the outer side of the bottle stopper puncture needle 3 to wrap and protect the bottle stopper puncture needle. The outer diameter of the blood blocking sleeve 4 is the same as the inner diameter of the vein puncture needle protecting sleeve 7, the outer end of the blood blocking sleeve 4 is in a conical shape, and the conical part also meets the requirement of wrapping the bottle stopper puncture needle 3. The outside of the blood blocking sleeve 4 is sleeved with a blood blocking sleeve protecting sleeve 8, so that the blood blocking sleeve 4 is prevented from being polluted.
The other end of hose 1 is connected with handheld handle 5, handheld handle 5 connects vein pjncture needle 6, vein pjncture needle protective sheath 7 plug bush is in handheld handle 5 outer edge, vein pjncture needle protective sheath 7's length is greater than vein pjncture needle 6's length, and be longer than bottle plug pjncture needle 3's length, guarantee vein pjncture needle protective sheath 7 and wrap up vein pjncture needle 6 and protect, when discharging the interior gas of vein blood taking needle simultaneously, even there is a drop blood outflow, blood also flows in vein pjncture needle protective sheath 7's lower part, can prevent effectively that blood from directly dripping in medical personnel or other operation aseptic list, sheet, white gown etc. department, avoid blood contamination. Preferably, the outer end of the protective sleeve of the vein puncture needle is longer than 1 cm of the pillow tip of the vein puncture needle in the combined state.
The use method comprises the steps of taking down the vein puncture needle protective sleeve 7, placing the vein puncture needle protective sleeve in a tray, inserting the vein puncture needle 6 into vein blood vessels of a hemostix, and sticking adhesive tape to fix the hand-held handle 5. The blood blocking sleeve protecting sleeve 8 is taken down, at this time, the needle stand 2 is held by one hand, the venous puncture needle protecting sleeve 7 on the tray is held by the other hand, the venous puncture needle protecting sleeve 7 is aligned with the cone part of the outer end of the blood blocking sleeve 4, and the venous puncture needle protecting sleeve 7 is pushed upwards, so that the cone part of the blood blocking sleeve 4 is inserted into the port of the venous puncture needle protecting sleeve 7, as shown in fig. 3. The venipuncture needle protecting sleeve 7 is pushed upwards continuously, the blood blocking sleeve 4 is compressed at the moment, and as shown in fig. 4, the needle head of the bottle stopper puncture needle 3 is exposed in the venipuncture needle protecting sleeve 7 and is suspended and not contacted with the inner wall of the venipuncture needle protecting sleeve 7, and the disposable intravenous blood taking needle is communicated with the atmosphere. By venous blood pressure, blood naturally flows out of the filled venous blood lancet until the gas in the blood lancet is completely discharged. Subsequently, the venous puncture needle protective sheath 7 is withdrawn, the blood collection tube is connected, and a blood sample is collected.
In some preferred embodiments, the outer wall of the intravenous puncture needle protecting sleeve 7 is provided with a hand-held part, so that the intravenous puncture needle protecting sleeve is convenient for medical staff to take, and the operation is safe, flexible and convenient.
The utility model uses the venipuncture needle tube protective sleeve 7 to discharge the gas in the vein blood taking needle, thereby effectively solving the problem of insufficient blood taking amount of the first tube blood sample caused by the incapability of discharging the gas of the blood taking needle during vein blood taking. The design is convenient to operate, simplifies the blood sampling flow, ensures the sufficiency of blood sampling amount, ensures the accuracy of detection results, and has been clinically verified. The disposable intravenous blood taking needle has the characteristics of simple structure and convenient processing, is low in production cost, is simple and convenient to operate, and is favorable for market popularization and application.
Finally, it should be noted that the above list is only a preferred embodiment of the utility model, and that modifications and variants can be made by those skilled in the art, provided that these modifications and variants fall within the scope of the claims and their equivalents, and should be considered as the protection scope of the present utility model.
Claims (3)
1. The disposable venous blood taking needle comprises a hose, a venous puncture needle protecting sleeve, a bottle stopper puncture needle and a blood blocking sleeve, wherein the venous puncture needle and the bottle stopper puncture needle are respectively connected to two ends of the hose, the blood blocking sleeve is sleeved on the outer side of the bottle stopper puncture needle;
the outer side wall of the vein puncture needle protective sleeve is provided with a hand-held part, the picking is convenient.
2. The disposable intravenous blood taking needle according to claim 1, further comprising a needle holder, wherein one end of the hose is connected with the needle holder, the needle holder is connected with the bottle stopper puncture needle and the blood blocking sleeve, and the other end of the hose is connected with a hand-held handle, and the hand-held handle is connected with the intravenous blood taking needle.
3. The disposable intravenous lancet of claim 2, wherein in the initial state, the intravenous lancet protective sleeve is snapped onto the handle and over the intravenous lancet, the intravenous lancet protective sleeve having a length longer than the intravenous lancet and stopper lancet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422402870.3U CN223365553U (en) | 2024-09-30 | 2024-09-30 | Disposable venous blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422402870.3U CN223365553U (en) | 2024-09-30 | 2024-09-30 | Disposable venous blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223365553U true CN223365553U (en) | 2025-09-23 |
Family
ID=97092723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422402870.3U Active CN223365553U (en) | 2024-09-30 | 2024-09-30 | Disposable venous blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223365553U (en) |
-
2024
- 2024-09-30 CN CN202422402870.3U patent/CN223365553U/en active Active
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| GR01 | Patent grant |