CN213249140U - A new type of disposable venous blood collection needle - Google Patents
A new type of disposable venous blood collection needle Download PDFInfo
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- CN213249140U CN213249140U CN202021353142.3U CN202021353142U CN213249140U CN 213249140 U CN213249140 U CN 213249140U CN 202021353142 U CN202021353142 U CN 202021353142U CN 213249140 U CN213249140 U CN 213249140U
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- needle
- tail
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- blood collection
- tube
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Abstract
本实用新型公开了一种新型一次性静脉采血针，包括塑料软管，塑料软管两端分别连接有针柄和针座，针柄连接采血针针管，采血针针管设有采血针针帽；所述针座连接尾针，尾针设有尾针橡胶套，针座上连接一透明圆柱形套盖。进一步地，所述塑料软管下段设有一止流夹。本实用新型与现有技术相比的优点是：本实用新型能够保持真空采血管内无菌，安全可靠；防针刺伤；使操作时手指肌肉舒适。既有静脉采血功能，又有连接输液器功能，能有效防血液外流、防交叉感染。
The utility model discloses a novel disposable venous blood collection needle, comprising a plastic hose, two ends of the plastic hose are respectively connected with a needle handle and a needle seat, the needle handle is connected with a blood collection needle needle tube, and the blood collection needle needle tube is provided with a blood collection needle needle cap; The needle base is connected to the tail needle, the tail needle is provided with a tail needle rubber sleeve, and a transparent cylindrical sleeve cover is connected to the needle base. Further, the lower section of the plastic hose is provided with a flow stop clip. Compared with the prior art, the advantages of the utility model are: the utility model can keep the sterility in the vacuum blood collection tube, which is safe and reliable; prevents needle stick injuries; and makes the finger muscles comfortable during operation. It has both the function of venous blood collection and the function of connecting the infusion set, which can effectively prevent blood outflow and prevent cross infection.
Description
Technical Field
The utility model relates to a medical supplies especially relates to a novel disposable venous blood taking needle.
Background
Venous blood sampling is the most common medical operation technique of clinical laboratory and nursing staff, and the blood taking needle on its top of venous blood taking needle is used for puncturing the blood vessel, and the transparent plastic hose of interlude links to each other with needle file and tail needle, and the tail needle is wrapped up by the rubber sleeve outward, overcoat needle cap, and the tail needle is used for pricking the vacuum blood sampling test tube, utilizes the negative pressure in the test tube to inhale intraductal with blood.
The tail needle skin of original blood taking needle has: a rubber sleeve and a needle cap. When the blood sampling is carried out, after the needle cap is taken off, the tail needle is only wrapped by the rubber sleeve, and a safer protection device is lacked during the blood sampling operation.
There are problems:
1. the risk of contamination: after the venipuncture is successful, when the tail needle is contacted with the blood sampling tube, the needle cap of the tail needle is firstly removed, then the finger stress point is positioned at the needle seat during the blood sampling operation, the distance between the needle seat and the rubber sleeve of the tail needle is short, the finger is easy to touch the rubber sleeve of the tail needle, and the rubber sleeve of the tail needle is easy to pollute. When a blood sample is left, when the contaminated tail needle rubber sleeve contacts the rubber plug of the blood sampling pipe orifice, the rubber plug of the blood sampling pipe orifice is also contaminated, the tail needle contacts and pierces the rubber plug of the contaminated blood sampling pipe orifice in a penetrating manner, the tail needle is also contaminated, and when the contaminated tail needle enters the sterile blood sampling pipe again, at the moment, the sterile state is not reached in the blood sampling pipe. The blood in the tail needle can be sucked into the tube along with the negative pressure in the test tube. The tube is contaminated, which will affect the accuracy of the laboratory test.
2. Occupational exposure needle stick injury risk: the first conventional intravenous blood collection amount of the inpatient is at least 6 tubes or more, if 6 tubes of blood are collected, the tail needle is inserted and pulled out at the rubber stopper of the opening of each blood collection tube (2 operations), and the 6 tubes need 12 operations; if more tubes of blood specimen are collected, the number of insertions and withdrawals will be greater. The rubber sleeve of the tail needle is weakened in elastic retraction function after being inserted and pulled out for a plurality of times. When the retraction function of the rubber sleeve is reduced after the needle point of the tail needle penetrates through the rubber sleeve, the needle point of the tail needle cannot be wrapped, so that the needle point of the tail needle is exposed outside the rubber sleeve and cannot play a role in shielding the needle point, and the danger of needle stick injury of medical staff is easily caused.
Still have the mistake risk of stinging, when the tail needle pierces the test tube mouth of pipe plug, because do not have the safety protection of design to pierce the instrument in the heparin tube rubber buffer, handheld needle file department if improper hard, can prick staff's hand with the tail needle by mistake. If the nursing staff is polluted by the blood stain of the patient with the virus in the process of collecting the blood specimen, the nursing staff is easy to cause the infection of blood-borne pathogens, and great risk is brought to the operation.
3. The finger muscles are easy to fatigue: clinical laboratory, physical examination branch of academic or vocational study staff carry out a large amount of blood sampling operations every day, and the needle file position is thinner, pulls out the needle file many times repeatedly, because needle file department lifting surface is little, and finger muscle is tired very easily.
4. Blood outflow, risk of cross-infection: in clinic, two orders of blood sampling and transfusion are usually given to some patients, and at the moment, in order to reduce the pain of the patients, one venipuncture is generally selected to finish the two operations of blood sampling and transfusion. Air in the infusion set is discharged first, and then venous blood sampling is carried out. Adopt disposable blood taking needle, treat when the blood taking of vein finishes, with the plastic hose of blood taking needle and the separation of needle file junction. During operation: the tail part of the plastic hose is reversely folded and pinched by one hand, and the conical connecting port at the lower end of the Murphy's dropper of the infusion apparatus is held by the other hand, so that the sterility at the tail part of the plastic hose port is kept, and the blood outflow is prevented. In many cases, the operation is very inconvenient, because the plastic hose is firmly connected with the needle seat, and the plastic hose is filled with blood of a patient, when the plastic hose is separated from the joint of the needle seat, if the plastic hose is pinched too tightly, the joint can not be separated; if the fingers are loosened slightly, the blood in the plastic hose can automatically flow outwards along with the blood pressure in the blood vessel of the patient, and the fingers of the staff can easily contact the blood. The risk of infection of blood-borne diseases of medical personnel is easily increased, and even if the medical personnel wear gloves for operation, the risk still exists. Therefore, the development of a novel disposable venous blood taking needle is a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel disposable venous blood taking needle for solving the defects.
The above object of the present invention is achieved by the following technical solutions: a novel disposable venous blood taking needle comprises a plastic hose, wherein two ends of the plastic hose are respectively connected with a needle handle and a needle base, the needle handle is connected with a blood taking needle tube, and the blood taking needle tube is provided with a blood taking needle cap; the needle stand is connected with a tail needle, the tail needle is provided with a tail needle rubber sleeve, and the needle stand is connected with a transparent cylindrical sleeve cover.
Further, the sleeve cover is in threaded connection with the needle base.
Further, the length of the tail needle rubber sleeve is 25 mm.
Further, the length of the sleeve cover is 9-11mm longer than that of the tail needle rubber sleeve.
Further, the diameter of the sleeve cover is 23 mm.
The technical scheme is used for simple venous blood collection. Based on the existing vein blood taking needle: the tail needle cap is removed, and then a fixed transparent cylindrical sleeve cover is added on the joint part of the original tail needle cap and the needle seat, so that the tail needle and the tail needle rubber sleeve are fixed at the downward vertical position of the right center of the sleeve cover. When blood is collected, the transparent cylindrical sleeve cover is directly covered on the blood collection tube, the sleeve cover is slightly pressed downwards, and the needle point of the tail needle can penetrate into the rubber plug of the tube opening of the blood collection tube. Blood is drawn into the tube by the negative pressure in the tube.
The diameter of the sleeve cover is longer than the diameter of the tube opening of the blood collection tube, the length of the sleeve cover is longer than that of the tail needle rubber sleeve, and the fingers of an operator cannot touch the needle point of the tail needle rubber sleeve, so that the tail needle and the rubber sleeve are in a safety protection state.
Furthermore, the lower section of the plastic hose is provided with a flow stopping clamp for a patient needing both venous blood collection and transfusion, venous blood is collected firstly after the one-time blood taking needle is successfully punctured by veins, and then the one-time blood taking needle is connected with a transfusion device.
The function of the flow stopping clamp: when the venous blood collection is completed and before the venous blood collection device is connected with an infusion device, the plastic hose of the disposable venous blood collection needle containing blood is closed by using the small switch, so that the blood in the plastic hose is prevented from flowing outwards. Then the joint part of the plastic hose and the needle base is unscrewed and then connected with the infusion apparatus interface. Solves the problem of blood outflow in the plastic hose and makes the operation simpler and more convenient.
Compared with the prior art, the utility model the advantage be:
the utility model provides a blood taking needle that has a cover, beneficial effect:
1. maintaining the sterility in the vacuum blood collection tube: the length of the sleeve cover is longer than the sharp position of the rubber sleeve needle of the tail needle, so that the fingers of workers are prevented from touching the rubber sleeve of the tail needle, the pollution to the tail needle rubber sleeve is prevented from entering the sterile vacuum blood sampling tube, the potential pollution hazard is prevented, and the safety and the reliability are realized.
2. Preventing needle-prick injury: the tail needle and the tail needle rubber sleeve are safely positioned at the center of the top end of the sleeve cover, only the sleeve cover is required to cover the tube opening of the blood sampling tube during blood sampling, the tail needle penetrates through the center of the rubber plug of the blood sampling tube, the fingers of workers cannot touch the needle point of the tail needle, and the danger of needle stick injury is avoided.
3. The finger muscle is comfortable: originally, the finger contact is long and thin needle file, increases cylindrical cover back, and the finger contact is the cover position, and area of contact is big, and the finger is comfortable, and convenient operation is swift, improves blood sampling speed greatly.
Two, have the blood taking needle that ends the class clamp, beneficial effect:
prevent blood outflow, prevent cross infection: when the patient has two medical advice of blood sampling and transfusion at the same time, the transfusion tube is connected before the venous blood sampling is finished. The flow stopping clamp is additionally arranged at the lower section of the plastic hose, and before the joint of the plastic hose and the needle seat is separated, the flow stopping clamp is closed, so that blood in the plastic hose cannot flow out, the psychological feeling of operators is good, and the plastic hose is convenient and safe to connect with an infusion apparatus.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Example 1: as shown in figure 1, a novel disposable venous blood taking needle comprises a plastic hose 1, wherein two ends of the plastic hose 1 are respectively connected with a needle handle 2 and a needle base 3, the needle handle 2 is connected with a blood taking needle tube 4, and the blood taking needle tube 4 is provided with a blood taking needle cap 5; the needle base 3 is connected with a tail needle 6, the tail needle 6 is provided with a tail needle rubber sleeve 7, and the needle base 3 is connected with a transparent cylindrical sleeve cover 8.
Further, the sleeve cover 8 is in threaded connection with the needle seat.
Further, the length of the tail needle rubber sleeve 7 is 25 mm.
Further, the length of the sleeve cover 8 is 9-11mm longer than that of the tail needle rubber sleeve.
Further, the diameter of the sleeve cover 8 is 23 mm.
The operation method comprises the following steps: during blood sampling, after venipuncture is successful, the sleeve cover 8 is directly covered on the blood sampling tube, the sleeve cover 8 is slightly pressed downwards, the needle tip of the tail needle 6 can pierce into the rubber plug at the tube opening of the blood sampling tube, and blood is sucked into the tube by using negative pressure in the test tube.
1. Length selection of the sleeve cover 8: (the length of the tail needle rubber sleeve 7 is 25 mm), the length of the sleeve cover 8 is 79-11mm longer than that of the tail needle rubber sleeve, namely, the length of the sleeve cover 8 is 35 mm.
The length of the sleeve cover 8 is selected to be 35mm for the following reasons:
firstly: if the sleeve cover 8 is parallel or shorter than the rubber sleeve with 7 length of tail needle rubber sleeve, 7 lower extremes of tail needle rubber sleeve can expose in 8 lower extremes of sleeve cover outsides, do not play the danger that the prevention acupuncture was hindered, only tail needle 6 all is shorter than sleeve cover 8 with the rubber sleeve, when 6 stabs the heparin tube rubber buffer of tail needle in the blood sampling operation process, tail needle rubber sleeve 7 can not directly be touched to the hand, and the blood sampling operation is safe.
Secondly, the method comprises the following steps: if the cap 8 is selected to be 35mm or more, it is not necessary that the tail needle 6 is too long to penetrate into the rubber stopper of the blood collection tube, and the force required is large. Therefore, the sleeve cover 8 is selected to be 35mm, and the operation is most convenient.
2. Diameter selection of the sleeve cover 8: the mouth of pipe 13mm in ordinary disposable vacuum test tube upper end, the plastic seal diameter co-length 15mm of its rubber buffer + periphery, 8 diameters of cover should be greater than the blood test tube upper end diameter, can select to increase 10mm again at blood test tube mouth of pipe diameter 13mm, 23mm is selected to 8 diameters of cover promptly.
The diameter of the sleeve cover 8 is selected to be 23mm for the following reasons:
firstly: if the sleeve cover 8 is selected to be smaller than or equal to 15mm in diameter, the sleeve does not enter the nozzle of the blood collection tube.
Secondly, the method comprises the following steps: if the cover 8 is selected to be larger than 25mm, the space that the cover 8 is sleeved in the blood sampling tube is really large, and the tail needle 6 cannot easily pierce the central position of the test tube opening of the rubber plug of the blood sampling tube in the blood sampling operation process, namely, the most easily pierced part with the concave middle part can deviate from the hard part piercing the edge of the rubber plug of the blood sampling tube.
Example 2: as shown in fig. 2, a flow stop clip 9 is installed on the lower section of the plastic hose 1 in addition to the embodiment 1.
The device is used for patients with two medical advice of venous blood collection and transfusion, and is used for discharging air of a transfusion device and then carrying out venous blood collection. When the venous blood collection is finished, the flow stopping clamp 9 at the lower section of the plastic hose 1 containing blood is closed, the blood in the plastic hose 1 can not flow out, and then the joint of the plastic hose 1 and the needle base 3 is separated and then connected with an infusion tube.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (6)
1. A novel disposable venous blood taking needle is characterized in that: the blood taking needle comprises a plastic hose, wherein two ends of the plastic hose are respectively connected with a needle handle and a needle base, the needle handle is connected with a blood taking needle tube, and the blood taking needle tube is provided with a blood taking needle cap; the needle stand is connected with a tail needle, the tail needle is provided with a tail needle rubber sleeve, and the needle stand is connected with a transparent cylindrical sleeve cover.
2. A novel disposable venous blood taking needle according to claim 1 characterised in that: the sleeve cover is in threaded connection with the needle base.
3. A novel disposable venous blood taking needle according to claim 1 characterised in that: the length of the tail needle rubber sleeve is 25 mm.
4. A novel disposable venous blood taking needle according to claim 1 characterised in that: the length of the sleeve cover is 9-11mm longer than that of the tail needle rubber sleeve.
5. A novel disposable venous blood taking needle according to claim 1 characterised in that: the diameter of the sleeve cover is 23 mm.
6. A novel disposable venous blood taking needle according to claim 1 characterised in that: the lower section of the plastic hose is provided with a flow stopping clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021353142.3U CN213249140U (en) | 2020-07-10 | 2020-07-10 | A new type of disposable venous blood collection needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021353142.3U CN213249140U (en) | 2020-07-10 | 2020-07-10 | A new type of disposable venous blood collection needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213249140U true CN213249140U (en) | 2021-05-25 |
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ID=75958957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021353142.3U Expired - Fee Related CN213249140U (en) | 2020-07-10 | 2020-07-10 | A new type of disposable venous blood collection needle |
Country Status (1)
| Country | Link |
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| CN (1) | CN213249140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115281669A (en) * | 2022-07-13 | 2022-11-04 | 复旦大学附属中山医院 | Circular-cap blood taking needle device and using method thereof |
-
2020
- 2020-07-10 CN CN202021353142.3U patent/CN213249140U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115281669A (en) * | 2022-07-13 | 2022-11-04 | 复旦大学附属中山医院 | Circular-cap blood taking needle device and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210525 |
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| CF01 | Termination of patent right due to non-payment of annual fee |