CN213312459U - Prevent refluence and block up keep somewhere needle joint - Google Patents
Prevent refluence and block up keep somewhere needle joint Download PDFInfo
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- CN213312459U CN213312459U CN202021726283.5U CN202021726283U CN213312459U CN 213312459 U CN213312459 U CN 213312459U CN 202021726283 U CN202021726283 U CN 202021726283U CN 213312459 U CN213312459 U CN 213312459U
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- needle
- fixedly connected
- tube
- positive pressure
- fixed frame
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Abstract
The utility model discloses an indwelling needle joint for preventing backflow blockage, which comprises a needle tube, wherein one end of the needle tube is fixedly connected with a transparent three-way tube, the side wall of the transparent three-way tube is fixedly connected with a catheter, the end of the catheter, which is far away from the transparent three-way tube, is fixedly connected with a positive pressure joint, the side wall of the positive pressure joint is provided with a backflow preventing mechanism for preventing the blood of a patient from flowing back into the needle tube when the indwelling needle is not used and further forming thrombus to block the needle tube, the utility model is provided with a backflow preventing mechanism, utilizes an end cap to block a positive pressure valve and an exhaust pipe to form a closed space in the indwelling needle, then pushes the liquid medicine in a fixed frame into the needle tube to prevent the residual blood in the needle tube and further improve the tightness of the indwelling needle, thereby avoiding the blood from forming thrombus in the needle tube and, the catheter is fixed on the arm of the patient through the binding belt, so that the indwelling needle is prevented from falling off from the arm of the patient.
Description
Technical Field
The utility model relates to the technical field of medical equipment, specifically a prevent to flow backwards and block up keep somewhere needle joint.
Background
The use of the indwelling needle can reduce the pain of the sick children caused by repeated venipuncture and the fear of injection, lighten the anxiety of parents, facilitate clinical medication, help the critical patients to take medicine for emergency treatment, lighten the workload of nurses and reduce the pain of the sick children, thereby the intravenous indwelling needle is widely applied clinically.
When the indwelling needle is not used, blood easily flows back into the needle tube of the indwelling needle, the blood can form thrombus in the needle tube, the blocking tube of the indwelling needle is caused, the reuse of the indwelling needle is influenced, the indwelling needle is encountered, medical workers need to move out the indwelling needle, the new indwelling needle is reused, the operation is carried out on the patient, the workload of the medical workers is increased, the infusion efficiency is reduced, the waste of the indwelling needle is caused simultaneously, and the indwelling needle is not convenient for the user to use.
In view of the above problems, an improved indwelling needle hub for preventing reverse flow blockage is now devised.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a prevent to flow backwards and block up keep somewhere needle joint to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a prevent to flow backwards and block up keeps somewhere needle joint, includes the needle tubing, the one end fixedly connected with transparent three-way pipe of needle tubing, the one end sliding connection that transparent three-way pipe kept away from the needle tubing has the steel needle spare that the needle tubing inserted in patient's skin of being convenient for, fixedly connected with is used for carrying the catheter of liquid medicine on the transparent three-way pipe lateral wall, be provided with the fixed establishment that is used for making the catheter fix on patient's arm on the catheter lateral wall, the one end fixedly connected with malleation that transparent three-way pipe was kept away from to the catheter connects, the input fixedly connected with positive pressure valve that malleation connects, the one end that positive pressure valve kept away from the malleation and connects on the transfer line can be dismantled, slope fixedly connected with blast pipe on positive pressure joint's the lateral wall, all detachable connection has the end cap that is used for shutoff positive And then the backflow preventing mechanism which forms thrombus to block the needle tube is formed in the needle tube.
As a further aspect of the present invention: the anti-backflow mechanism comprises a fixed frame, an opening is formed in the positive pressure joint side wall opposite to the exhaust pipe, the fixed frame is fixedly installed on the opening of the positive pressure joint side wall, a slide rod is connected in the fixed frame in a sliding mode, and one end, far away from the positive pressure joint, of the slide rod penetrates through a pressing plate fixedly connected with the fixed frame.
As a further aspect of the present invention: and a sealing gasket for preventing the leakage of the liquid medicine in the fixing frame is fixedly connected to the side wall of the sliding rod in the fixing frame.
As a further aspect of the present invention: the fixed frame and the slide bar between the pressing plate are fixedly connected with a spring which enables the slide bar to be drawn out of the fixed frame, one end of the fixed frame, which is far away from the positive pressure joint, is fixedly connected with a clamping groove for fixing the pressing plate, and a clamping block which is matched with the clamping groove is fixedly connected with the pressing plate.
As a further aspect of the present invention: the fixing mechanism comprises a fixing block, the fixing block is fixedly connected to the side wall of the liquid guide tube, a restraining belt used for fixing the liquid guide tube on the arm of a patient is fixedly connected to the side wall of the fixing block, and the two ends of the restraining belt are fixedly connected with a magic tape suede and a magic tape hook surface respectively.
As a further aspect of the present invention: the binding belt is fixedly connected with an elastic rubber sheet which enables the binding belt to be fixed on the arms of patients with different sizes.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses be provided with backflow prevention mechanism, utilize end cap shutoff to stop up positive pressure valve and blast pipe and make and keep somewhere and form airtight space in the needle, push away fixed frame interior liquid medicine in the needle tubing again, prevent that the needle tubing is interior to remain blood, further improve the seal of keeping somewhere the needle, can effectively prevent blood reflux in the needle tubing, and then avoid blood to form the thrombus in the needle tubing, avoid influencing the reuse of keeping somewhere the needle, improve the availability factor of keeping somewhere the needle, convenient to use person uses.
2. The utility model discloses still be provided with fixed establishment, fix the catheter on patient's arm through the constraint area to paste the matte through the magic and paste the hook face and fix the constraint area with the magic, when preventing that the patient from removing, the catheter takes place to rock, leads to indwelling needle to come off from patient's arm, improves the security of indwelling needle use, and then improves the availability factor of indwelling needle, convenient to use person uses.
Drawings
Fig. 1 is a schematic diagram of the three-dimensional structure of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.
Wherein: the needle tube 1, the transparent tee pipe 2, the steel needle piece 3, the catheter 4, the positive pressure joint 5, the positive pressure valve 6, the exhaust pipe 7, the end cap 8, the fixed frame 9, the opening 10, the slide bar 11, the pressing plate 12, the spring 13, the clamping groove 14, the clamping block 15, the fixed block 16, the restraining belt 17, the magic tape suede 18 and the magic tape hook surface 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, in the embodiment of the present invention, an indwelling needle connector for preventing backflow blockage comprises a needle tube 1, one end of the needle tube 1 is fixedly connected with a transparent three-way tube 2, one end of the transparent three-way tube 2, which is away from the needle tube 1, is slidably connected with a steel needle 3 for facilitating the insertion of the needle tube 1 into the skin of a patient, a catheter 4 for conveying liquid medicine is fixedly connected to the side wall of the transparent three-way tube 2, a fixing mechanism for fixing the catheter 4 on the arm of the patient is arranged on the side wall of the catheter 4, one end of the catheter 4, which is away from the transparent three-way tube 2, is fixedly connected with a positive pressure connector 5, the input end of the positive pressure connector 5 is fixedly connected with a positive pressure valve 6, one end of the positive pressure valve 6, which is away from the, the positive pressure valve 6 and the exhaust pipe 7 are detachably connected with end caps 8 used for plugging the positive pressure valve 6 and the exhaust pipe 7, and the side wall of the positive pressure connector 5 opposite to the exhaust pipe 7 is provided with a backflow preventing mechanism used for preventing blood of a patient from flowing back into the needle tube 1 when an indwelling needle is not used so as to form thrombus to block the needle tube 1.
The backflow prevention mechanism comprises a fixed frame 9, an opening 10 is formed in the side wall of a positive pressure joint 5 opposite to an exhaust pipe 7, the fixed frame 9 is fixedly installed on the opening 10 of the side wall of the positive pressure joint 5, a slide rod 11 is connected in the fixed frame 9 in a sliding mode, one end, far away from the positive pressure joint 5, of the slide rod 11 penetrates through the fixed frame 9 and is fixedly connected with a pressing plate 12, a spring 13 enabling the slide rod 11 to draw out the fixed frame 9 is fixedly connected onto the side wall of the slide rod 11 between the fixed frame 9 and the pressing plate 12, one end, far away from the positive pressure joint 5, of the fixed frame 9 is fixedly connected with a clamping groove 14 for fixing the pressing plate 12, a clamping block 15 matched with the clamping groove 14 for use is fixedly connected onto the pressing plate 12, the backflow prevention mechanism has the working principle that after infusion, the pressing plate 12 pushes the sliding rod 11 to move, the sliding rod 11 pushes the liquid medicine in the fixing frame 9 into the positive pressure connector 5, the positive pressure connector 5 conveys the liquid medicine into the needle tube 1 through the liquid guide tube 4, the pressing plate 12 is fixed on the fixing frame 9 under the action of the clamping block 15 and the clamping groove 14, a closed space is formed in the remaining needle at the moment, and therefore blood is prevented from flowing back into the needle tube 1, the backflow prevention mechanism has the effect that the positive pressure valve 6 and the exhaust pipe 7 are blocked by the end cap 8 to form the closed space in the remaining needle, then the liquid medicine in the fixing frame 9 is pushed into the needle tube 1 to prevent blood from remaining in the needle tube 1, the tightness of the remaining needle is further improved, the blood can be effectively prevented from flowing back into the needle tube 1, and therefore thrombus is prevented from being formed in the needle.
The fixing mechanism comprises a fixing block 16, the fixing block 16 is fixedly connected to the side wall of the liquid guide tube 4, a binding belt 17 used for fixing the liquid guide tube 4 on the arm of a patient is fixedly connected to the side wall of the fixing block 16, a magic tape suede 18 and a magic tape hook face 19 are fixedly connected to two ends of the binding belt 17 respectively, the fixing mechanism is used for fixing the liquid guide tube 4 on the arm of the patient through the binding belt 17 and fixing the binding belt 17 through the magic tape suede 18 and the magic tape hook face 19, and when the patient is prevented from moving, the liquid guide tube 4 is shaken to cause the indwelling needle to fall off from the arm of the patient, so that the use safety of the indwelling needle is improved, the use efficiency of the indwelling needle is improved, and the indwelling needle is convenient to use.
The utility model discloses a theory of operation is: when the indwelling needle is used, the catheter 4 is fixed on the arm of a patient through the restraining belt 17, and the restraining belt 17 is fixed through the magic tape suede 18 and the magic tape hooking surface 19, so that the indwelling needle is prevented from falling off from the arm of the patient due to shaking of the catheter 4 when the patient moves;
after the patient infusion is completed, the positive pressure valve 6 and the exhaust pipe 7 are blocked by the end cap 8, then the pressing plate 12 is pushed, the pressing plate 12 pushes the sliding rod 11 to move, the sliding rod 11 pushes the liquid medicine in the fixing frame 9 into the positive pressure connector 5, the positive pressure connector 5 conveys the liquid medicine into the needle tube 1 through the liquid guide pipe 4, the pressing plate 12 is fixed on the fixing frame 9 under the action of the clamping block 15 and the clamping groove 14, and at the moment, a closed space is formed in the remaining needle, so that the blood is prevented from flowing back into the needle tube 1.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A remaining needle joint for preventing backflow blockage comprises a needle tube (1), wherein one end of the needle tube (1) is fixedly connected with a transparent three-way tube (2), one end, far away from the needle tube (1), of the transparent three-way tube (2) is connected with a steel needle piece (3) which is convenient for the needle tube (1) to be inserted into the skin of a patient in a sliding manner, the side wall of the transparent three-way tube (2) is fixedly connected with a liquid guide tube (4) used for conveying liquid medicine, a fixing mechanism used for fixing the liquid guide tube (4) on the arm of the patient is arranged on the side wall of the liquid guide tube (4), one end, far away from the transparent three-way tube (2), of the liquid guide tube (4) is fixedly connected with a positive pressure joint (5), the input end of the positive pressure joint (5) is fixedly connected with a positive pressure valve (6), one end, far away from the positive pressure joint (, all can dismantle on positive pressure valve (6) and blast pipe (7) and be connected with end cap (8) that are used for shutoff positive pressure valve (6) and blast pipe (7), its characterized in that, be provided with on blast pipe (7) just right malleation joint (5) lateral wall and be used for preventing that patient's blood from flowing back in needle tubing (1) and then form the backflow prevention mechanism of thrombus blockage needle tubing (1) when lieing in the needle and not using.
2. The needle connector that keeps somewhere that prevents refluence jam according to claim 1, characterized in that, the backflow prevention mechanism includes fixed frame (9), opening (10) have been seted up on the just right malleation joint (5) lateral wall of blast pipe (7), fixed frame (9) fixed mounting is on opening (10) of malleation joint (5) lateral wall, sliding connection has slide bar (11) in fixed frame (9), the one end that malleation joint (5) was kept away from to slide bar (11) passes fixed frame (9) fixedly connected with pressing plate (12).
3. The connector of the indwelling needle which prevents backflow blockage according to claim 2, wherein a gasket which prevents leakage of the medical fluid in the fixed frame (9) is fixedly connected to the side wall of the sliding rod (11) in the fixed frame (9).
4. The indwelling needle connector according to claim 2, wherein a spring (13) is fixedly connected to the side wall of the slide rod (11) between the fixed frame (9) and the pressing plate (12) to pull the slide rod (11) out of the fixed frame (9), a slot (14) is fixedly connected to one end of the fixed frame (9) far away from the positive pressure connector (5) for fixing the pressing plate (12), and a block (15) is fixedly connected to the pressing plate (12) for cooperating with the slot (14).
5. The indwelling needle hub according to claim 1, wherein the securing mechanism comprises a securing block (16), the securing block (16) is fixedly connected to the side wall of the catheter (4), a restraining strap (17) for fixing the catheter (4) to the arm of the patient is fixedly connected to the side wall of the securing block (16), and a Velcro surface (18) and a Velcro surface (19) are respectively fixedly connected to both ends of the restraining strap (17).
6. A connector of a indwelling needle which prevents reverse flow obstruction according to claim 5, in which the restraining strip (17) is fixedly attached with a resilient rubber sheet which secures the restraining strip (17) to the arms of patients of different sizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021726283.5U CN213312459U (en) | 2020-08-18 | 2020-08-18 | Prevent refluence and block up keep somewhere needle joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021726283.5U CN213312459U (en) | 2020-08-18 | 2020-08-18 | Prevent refluence and block up keep somewhere needle joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213312459U true CN213312459U (en) | 2021-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021726283.5U Active CN213312459U (en) | 2020-08-18 | 2020-08-18 | Prevent refluence and block up keep somewhere needle joint |
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| Country | Link |
|---|---|
| CN (1) | CN213312459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116392670A (en) * | 2023-02-03 | 2023-07-07 | 山东朱氏堂医疗器械有限公司 | Anti-needle positive pressure venous indwelling needle assembly |
-
2020
- 2020-08-18 CN CN202021726283.5U patent/CN213312459U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116392670A (en) * | 2023-02-03 | 2023-07-07 | 山东朱氏堂医疗器械有限公司 | Anti-needle positive pressure venous indwelling needle assembly |
| CN116392670B (en) * | 2023-02-03 | 2026-03-27 | 山东朱氏堂医疗器械有限公司 | Anti-needle-puncture positive pressure intravenous catheter assembly |
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