CN219595457U - Remaining needle convenient for blood drawing - Google Patents
Remaining needle convenient for blood drawing Download PDFInfo
- Publication number
- CN219595457U CN219595457U CN202223516507.1U CN202223516507U CN219595457U CN 219595457 U CN219595457 U CN 219595457U CN 202223516507 U CN202223516507 U CN 202223516507U CN 219595457 U CN219595457 U CN 219595457U
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- sleeve
- blood drawing
- blocking
- blood
- cap
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a detaining needle convenient for blood drawing, which comprises a detaining needle sleeve, a steel needle and an injection assembly, wherein the injection assembly comprises a hose, one end of the hose is communicated with one side of the detaining needle sleeve, the other end of the hose is connected with an injection heparin cap, the detaining needle also comprises a blood drawing sleeve, one end of the blood drawing sleeve is communicated with one side of the detaining needle sleeve, the other end of the blood drawing sleeve is connected with the blood drawing heparin cap, and a one-way valve is arranged on the blood drawing sleeve; the caliber of one end of the blood drawing sleeve connected with the indwelling needle sleeve is larger than that of one end connected with the blood drawing heparin cap, the cavity in the middle of the blood drawing sleeve is larger than that of the ports at the two ends, a block is arranged in the cavity in the middle, the outer diameter of the block is smaller than the inner diameter of the cavity, a stop lever is arranged at one side of the port with larger caliber in the cavity, and a plug for blocking the port is arranged at one side of the block with smaller caliber; the blood drawing sleeve is provided with a blocking cap, and the blocking cap is provided with a supporting rod. Can carry out transfusion or blood drawing, only needs to puncture once, reduces puncture degree of difficulty.
Description
Technical Field
The utility model relates to the technical field of medical tools, in particular to an indwelling needle convenient for blood drawing.
Background
Venous indwelling needles are also known as venous trocars. The core components include a flexible catheter/cannula that can be left in the blood vessel, and a stainless steel puncture guide needle. When in use, the catheter and the needle core are punctured into the blood vessel together, and after the catheter completely enters the blood vessel, the needle core is withdrawn, and only the soft catheter is remained in the blood vessel, so that transfusion treatment is carried out. The use of the detaining needle can reduce the pain of the child patient caused by repeated venipuncture and the fear of needle injection, lighten the dysphoria emotion of parents, facilitate clinical medication, rescue medication of emergency and critical patients, lighten the workload of nurses and reduce the pain of the child patient, so the intravenous detaining needle is widely applied in clinic.
However, not only infusion but also blood drawing is actually required to perform venipuncture. However, the common indwelling needle is only suitable for transfusion. Patent document with publication number CN101756704B discloses a blood-drawing indwelling needle, which needs to inject a certain liquid medicine into a transfusion tube and clamp the transfusion tube by a locking clamp before drawing blood, then inserts a blood taking needle into a needle seat elastic sealing plug at the position of a puncture guiding needle core, has complex operation, and if blood needs to be collected for multiple times, the elastic sealing plug is easy to lose tightness under the condition of multiple times puncture, thus affecting blood taking and transfusion. Therefore, there is an urgent need for an indwelling needle that can both infuse and draw blood.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art, and particularly creatively provides an indwelling needle convenient for blood drawing, which can be used for transfusion or blood drawing and only needs one puncture.
In order to achieve the above object, the utility model provides an indwelling needle convenient for blood drawing, which comprises an indwelling needle sleeve, a steel needle and an injection assembly, wherein the injection assembly comprises a hose, one end of the hose is communicated with one side of the indwelling needle sleeve, the other end of the hose is connected with an injection heparin cap, the indwelling needle also comprises a blood drawing assembly, the blood drawing assembly comprises a blood drawing sleeve, one end of the blood drawing sleeve is communicated with one side of the indwelling needle sleeve, the other end of the blood drawing sleeve is connected with a blood drawing heparin cap, and a one-way valve which can only draw blood is arranged on the blood drawing sleeve;
the diameter of one end of the blood drawing sleeve, which is connected with the indwelling needle sleeve, is larger than that of one end of the blood drawing sleeve, which is connected with the blood drawing heparin cap, the cavity in the middle of the blood drawing sleeve is larger than that of the ports at the two ends, the one-way valve comprises a block, the block is arranged in the cavity, the outer diameter of the block is smaller than the inner diameter of the cavity, a stop lever is arranged at one side of the cavity, which faces the port with larger diameter, and the stop lever is used for preventing the block from blocking the port with larger diameter of the blood drawing sleeve; a plug for plugging the port is arranged on one side of the plugging block towards the port with smaller caliber;
the blood drawing sleeve is provided with a blocking cap, the blocking cap is used for covering the blood drawing heparin cap, the blocking cap is provided with a supporting rod, and the supporting rod is used for extending into the blood drawing heparin cap to support against the blocking block and support the blocking block on a smaller port of the blood drawing sleeve.
In the scheme, the method comprises the following steps: the stop lever is two, and is parallel to each other, and the interval between two stop levers is greater than the external diameter of supporting the pole, is convenient for insert the stop lever to plug up the less port of sleeve pipe of drawing blood. The two blocking rods arranged in parallel are convenient for propping against the blocking block and not blocking the larger port of the blood drawing sleeve.
In the scheme, the method comprises the following steps: the plug is conical, can be directly aligned, is convenient to plug, and cannot deviate.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows: not only can transfusion but also can draw blood, and improves transfusion and blood drawing efficiency, and only needs to puncture once. The one-way valve can facilitate blood extraction, is provided with a blocking cap, and can prevent the medicine industry from entering the blood extraction sleeve during transfusion. The arranged blocking cap can block the blood drawing sleeve through the blocking cap, so that the injected liquid medicine can not flow out of the blood drawing sleeve.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
fig. 3 is a schematic structural view of the cap.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
1-3, an indwelling needle convenient for blood drawing comprises an indwelling needle sleeve 1, a steel needle 1a and an injection assembly, wherein the injection assembly comprises a hose 2, one end of the hose 2 is communicated with one side of the indwelling needle sleeve 1, and the other end of the hose 2 is connected with an injection heparin cap 2a.
The blood drawing device comprises a blood drawing sleeve, and is characterized by further comprising a blood drawing assembly, wherein the blood drawing assembly comprises a blood drawing sleeve 3, one end of the blood drawing sleeve 3 is communicated with one side of the indwelling needle sleeve 1, the other end of the blood drawing sleeve 3 is connected with a blood drawing heparin cap 3a, and a one-way valve 4 which can only draw blood is arranged on the blood drawing sleeve 3.
The caliber of one end of the blood drawing sleeve 3 connected with the indwelling needle sleeve 1 is larger than that of one end connected with the blood drawing heparin cap 3a, and the caliber of the cavity 3c in the middle of the blood drawing sleeve 3 is larger than that of the ports at the two ends. The check valve 4 comprises a blocking block 4a, the blocking block 4a is arranged in the cavity 3c, the outer diameter of the blocking block 4a is smaller than the inner diameter of the cavity 3c, a blocking rod 4b is arranged on one side, facing the port with larger caliber, of the cavity 3c, and the blocking rod 4b is used for preventing the blocking block 4a from blocking the port with larger caliber of the blood drawing sleeve 3. The two stop rods 4b extend up and down and are parallel to each other, the distance between the two stop rods 4b is larger than the outer diameter of the supporting rod 5a, and the stop rods 4b are convenient to insert, so that the smaller port of the blood drawing sleeve 3 is blocked. The two bars 4b arranged in parallel facilitate the blocking of the larger port of the blood drawing cannula 3 against the blocking block 4 a.
The conical plug for plugging the port is arranged on one side of the plugging block 4a towards the port with smaller caliber, so that the plugging block can be directly aligned, is convenient to plug and cannot deviate.
The blood drawing sleeve 3 is provided with a blocking cap 5, the blocking cap 5 is used for covering the blood drawing heparin cap 3a, the blocking cap 5 is provided with a supporting rod 5a, the supporting rod 5a is used for extending into the blood drawing heparin cap 3a to support against the blocking block 4a and support the blocking block 4a on a smaller port of the blood drawing sleeve 3, the blood drawing sleeve 3 can be blocked by the blocking cap 5, and the injected liquid medicine can not flow out of the blood drawing sleeve 3. After the blood drawing is completed, the blocking cap 5 can be inserted into the blood drawing sleeve 3 from the blood drawing heparin cap 3a, and the blocking block 4a is abutted against the smaller port of the blood drawing sleeve 3, so that the blood drawing sleeve 3 is blocked. The indwelling needle after the blood drawing cannula 3 is plugged can be used as an indwelling needle requiring only transfusion. When in use, blood is preferably drawn and then injected.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (3)
1. The utility model provides a keep somewhere needle convenient to blood drawing, includes keep somewhere needle sleeve (1), steel needle (1 a) and injection subassembly, injection subassembly includes hose (2), hose (2) one end and keep somewhere needle sleeve (1) one side intercommunication, and hose (2) other end is connected with injection heparin cap (2 a), its characterized in that: the blood collection device comprises a blood collection sleeve (3), wherein one end of the blood collection sleeve (3) is communicated with one side of an indwelling needle sleeve (1), the other end of the blood collection sleeve (3) is connected with a blood collection heparin cap (3 a), and a one-way valve (4) which can only collect blood is arranged on the blood collection sleeve (3);
the diameter of one end, connected with the indwelling needle sleeve (1), of the blood drawing sleeve (3) is larger than that of one end, connected with the blood drawing heparin cap (3 a), the diameters of the ports at the two ends of the cavity (3 c) in the middle of the blood drawing sleeve (3) are larger than that of the ports at the two ends, the one-way valve (4) comprises a blocking block (4 a), the blocking block (4 a) is arranged in the cavity (3 c), the outer diameter of the blocking block (4 a) is smaller than the inner diameter of the cavity (3 c), a blocking rod (4 b) is arranged on one side, facing the port with the larger diameter, of the cavity (3 c), and the blocking rod (4 b) is used for preventing the blocking block (4 a) from blocking the port with the larger diameter of the blood drawing sleeve (3). A plug for plugging the port is arranged on one side of the plugging block (4 a) towards the port with smaller caliber;
the blood drawing sleeve (3) is provided with a blocking cap (5), the blocking cap (5) is used for covering the blood drawing heparin cap (3 a), a supporting rod (5 a) is arranged on the blocking cap (5), and the supporting rod (5 a) is used for extending into the blood drawing heparin cap (3 a) to support against the blocking piece (4 a) and support against the blocking piece (4 a) on a smaller port of the blood drawing sleeve (3).
2. An indwelling needle for facilitating blood drawing according to claim 1, in which: the number of the stop rods (4 b) is two, the stop rods are parallel to each other, and the distance between the two stop rods (4 b) is larger than the outer diameter of the supporting rod (5 a).
3. An indwelling needle for facilitating blood drawing according to claim 1, in which: the plug is conical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223516507.1U CN219595457U (en) | 2022-12-28 | 2022-12-28 | Remaining needle convenient for blood drawing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223516507.1U CN219595457U (en) | 2022-12-28 | 2022-12-28 | Remaining needle convenient for blood drawing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219595457U true CN219595457U (en) | 2023-08-29 |
Family
ID=87755889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223516507.1U Active CN219595457U (en) | 2022-12-28 | 2022-12-28 | Remaining needle convenient for blood drawing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219595457U (en) |
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2022
- 2022-12-28 CN CN202223516507.1U patent/CN219595457U/en active Active
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