CN105013045A - Positive-pressure continuous liquid supply device, venous indwelling needle and central venous catheter - Google Patents
Positive-pressure continuous liquid supply device, venous indwelling needle and central venous catheter Download PDFInfo
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- CN105013045A CN105013045A CN201510520270.XA CN201510520270A CN105013045A CN 105013045 A CN105013045 A CN 105013045A CN 201510520270 A CN201510520270 A CN 201510520270A CN 105013045 A CN105013045 A CN 105013045A
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- malleation
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Abstract
The invention belongs to the field of medical instruments, and relates to a positive-pressure continuous liquid supply device. The positive-pressure continuous liquid supply device comprises a positive-pressure liquid storage bag and a joint, wherein the positive-pressure liquid storage bag is made of elastic material; a one-way medicine adding opening and a medicine outlet are formed in the positive-pressure liquid storage bag; the medicine outlet is connected with the joint through a flow limiting tube. The positive-pressure continuous liquid supply device can provide continuous positive pressure and realize continuous liquid supply; during the liquid supply process, the output speed and output amount of medical liquid can be limited through the flow limiting tube to guarantee the fact that the infusion time (namely the liquid supply time) for injecting medical liquid through the positive-pressure liquid storage bag is within the planned time range; the device is suitable for medical instruments requiring intravenous indwelling, and is wide in application range. The invention further relates to a venous indwelling needle provided with the positive-pressure continuous liquid supply device and a central venous catheter provided with the positive-pressure continuous liquid supply device. The venous indwelling needle and the central venous catheter have the effects of the positive-pressure continuous liquid supply device, and further have the advantages of being capable of preventing reverse flow of blood, preventing thrombus, avoiding sealing tube, and avoiding flushing tube.
Description
Technical field
The present invention relates to a kind of malleation and continue liquid dispensing apparatus and venous detaining needle, central venous catheter, belong to medical instruments field.
Background technology
The single use venous detaining needle, central venous catheter etc. of clinical unit of domestic each medical institutions Clinical practice need venous indwelling.
Be explained as follows for the work process of traditional venous detaining needle to the medical apparatus and instruments of venous indwelling: traditional venous detaining needle is primarily of calparine cap, helmet, infusion tee, PVC hose, tongs, Paracentesis needle holder, Injector Bushing base, haemostat, puncture needle, remaining needle sleeve pipe, remaining needle sheath composition.Single use venous detaining needle utilizes the sharpness of puncture needle to enter vein to reach smooth skin puncture when puncturing, then puncture needle is extracted out, after venipuncture success, trocar indwelling is carried out infusion treatment in intravenous, effectively improve infusion treatment quality, increase the comfort in patient fluid infusion's process; The sleeve pipe of the trocar is soft, unsuitable injured blood vessel, reduces the incidence rate of phlebitis and transfusion complication, ensures that transfusion is safer; Every day, infusion-completed must do tube sealing process, continued venous transfusion to remain into second day, necessary washing pipe before continuing venous transfusion for second day; The trocar can retain and be not more than 72 hours, thus reduces the misery of patient's venipuncture every day, improves patient satisfaction rate; Vein lien cannula needle can improve nursery work efficiency, reduces pricking wound, the occupational safety of protection medical personnel.
From the above, need to carry out tube sealing operation after transfusion terminates, in order to avoid cause plugging phenomenon because managing interior formation blood coagulation.But in actual application, often because of patient moving and blood infiltration and cause blood to enter in remaining needle sleeve pipe, as failed washing pipe or established sludged blood is poured Ink vessel transfusing before carrying out the transfusion of second day, very easily cause blood vascularization thromboembolism in blocking in cyclic process, bring to patient and injure even life-threatening greatly.At present, in order to prevent blood coagulation, the anticoagulant medicines such as heparin sodium can be injected to patient, but have anticoagulant drug allergy patients such as heparin sodiums, cannot use; Also tube sealing can be carried out with normal saline, but its tube sealing limited time, repeatedly need carry out tube sealing, in addition, nurse operation is improper also very easily causes plugging phenomenon.Now, market there is positive pressure connector device, also have in pipe and place the technology such as fine fibre drain, but these malleations formed are disposable, just discharge complete within 10 seconds completely, can not continuous positive pressure be provided, or easily plugging, how to solve intravascular coagulation and prevent clot generation from being the current difficult problem facing solution.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: provide a kind of malleation of continuous positive pressure that can provide to continue liquid dispensing apparatus; Also provide simultaneously have that this malleation continues liquid dispensing apparatus can prevent blood back flow, preventing thrombosis and exempt from tube sealing, exempt from the venous detaining needle of washing pipe and central venous catheter.
Malleation of the present invention continues liquid dispensing apparatus, comprises malleation reservoir and joint, and malleation reservoir adopts elastic material to make, and malleation reservoir arranges unidirectional dosing mouth and medicine outlet, and medicine outlet is connected with joint by current limiting tube.
Continue in liquid dispensing apparatus in above-mentioned malleation, unidirectional dosing mouth can adopt conventional check valve to realize unidirectional dosing, coordinates the apparatuses such as syringe in malleation reservoir, to add injecting medical liquid by unidirectional dosing mouth, and prevent medicinal liquid from backflowing from unidirectional dosing mouth during use.Malleation continue the work process of liquid dispensing apparatus and principle as follows:
When injecting medicinal liquid (can be normal saline or other medicinal liquids) from unidirectional dosing mouth in malleation reservoir, under medicine action of hydraulic force, malleation reservoir expands, interior reservoir liquid space increases, liquid medicine storage is in malleation reservoir, because malleation reservoir adopts elastic material make and have unidirectional dosing mouth, therefore, after stopping dosing from unidirectional dosing mouth, malleation reservoir can shrink under natural resiliency effect, thus provide continuous positive pressure to medicine outlet, and realize continuing feeding, in feeding process, by the output of current limiting tube restriction medicinal liquid, to ensure to inject the Infusion Time (i.e. feeding time) of medicinal liquid within the scope of planned time by malleation reservoir.
The present invention also comprises a shell, and malleation reservoir and current limiting tube are installed in the enclosure, thus protect effectively malleation reservoir and current limiting tube.Preferably, shell is transparent or semitransparent, is convenient to the state of observing malleation reservoir.
The internal diameter of above-mentioned current limiting tube is less than 0.1mm, and its principle is identical with the glass capillary in glass-stem thermometer, thus the output speed of restriction medicinal liquid and output.
Above-mentioned joint is outer cone joint, can directly need the positive pressure connector of the medical apparatus and instruments of venous indwelling to match with traditional venous detaining needle, central venous catheter etc. by outer cone joint.
Play a protective role to continue liquid dispensing apparatus to whole malleation, in the present invention, corresponding unidirectional dosing mouth is provided with the first helmet, and corresponding joints is provided with the second helmet.
Venous detaining needle of the present invention, comprises infusion tee, and above-mentioned malleation continues the positive pressure interface place of jiont treatment at infusion tee of liquid dispensing apparatus.Compared with common remaining needle, after first day infusion-completed, the normal saline as long as malleation continued to annotate in liquid dispensing apparatus is also connected on venous detaining needle, malleation continues liquid dispensing apparatus just can continue feeding (in lasting feeding process, guarantee that tongs can not be closed), again without the need to tube sealing, washing pipe in the whole indwelling process of venous detaining needle, just can resistant to blood adverse current, preventing thrombosis formed.By the slow release medicinal liquid that venous detaining needle of the present invention can also be stable, prevent from forming sludged blood in indwelling tube, avoid plugging phenomenon to occur, thus extend the service life of remaining needle, the clot because being formed also can be avoided to pour in the blood circulation of patient secondary injury is caused to patient.
Central venous catheter of the present invention, comprises infusion tee, and above-mentioned malleation continues the positive pressure interface place of jiont treatment at infusion tee of liquid dispensing apparatus.Its operation principle and process and above-mentionedly there is malleation to continue the venous detaining needle of liquid dispensing apparatus identical.
The beneficial effect that the present invention is compared with prior art had is:
Malleation of the present invention continues liquid dispensing apparatus can provide continuous positive pressure, and realize continuing feeding, in feeding process, output speed and the output of medicinal liquid can be limited, to ensure to inject the Infusion Time (i.e. feeding time) of medicinal liquid within the scope of planned time by malleation reservoir by current limiting tube; Venous detaining needle of the present invention, central venous catheter, continue liquid dispensing apparatus owing to possessing above-mentioned malleation, therefore also possess above-mentioned effect, and can prevent blood back flow, preventing thrombosis and exempt from tube sealing, exempt from washing pipe.
Accompanying drawing explanation
Fig. 1 is the structural representation that malleation continues liquid dispensing apparatus;
Fig. 2 has the structural representation that malleation continues the venous detaining needle of liquid dispensing apparatus.
In figure: 1, unidirectional dosing mouth; 2, check valve; 3, malleation reservoir; 4, medicine outlet; 5, current limiting tube; 6, joint; 7, the second helmet; 8, shell; 9, the first helmet; 10, positive pressure interface; 11, infusion tee; 12, tongs.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described further:
As shown in Figure 1, malleation continues liquid dispensing apparatus and comprises malleation reservoir 3 and joint 6, and malleation reservoir 3 adopts elastic material to make, and malleation reservoir 3 is arranged unidirectional dosing mouth 1 and medicine outlet 4, medicine outlet 4 is connected with joint 6 by current limiting tube 5.
In the present embodiment:
In order to protect effectively malleation reservoir 3 and current limiting tube 5, also set up a shell 8, malleation reservoir 3 and current limiting tube 5 are arranged in shell 8; Shell 8 is transparent or semitransparent, is convenient to the state of observing malleation reservoir 3; The internal diameter of current limiting tube 5 is less than 0.1mm, to limit output speed and the output of medicinal liquid; Joint 6 is outer cone joint, can directly need the positive pressure connector of the medical apparatus and instruments of venous indwelling to match with traditional venous detaining needle, central venous catheter etc. by outer cone joint; Corresponding unidirectional dosing mouth 1 is provided with the first helmet 9, and corresponding joints 6 is provided with the second helmet 7, thus continues liquid dispensing apparatus to whole malleation and play a protective role.
In the present embodiment, unidirectional dosing mouth 1 adopts conventional check valve 2 to realize unidirectional dosing, coordinates the apparatuses such as syringe in malleation reservoir 3, to add injecting medical liquid by unidirectional dosing mouth 1, and prevent medicinal liquid from backflowing from unidirectional dosing mouth 1 during use.Work process and the principle of the present embodiment are as follows:
When injecting medicinal liquid (can be normal saline or other medicinal liquids) from unidirectional dosing mouth 1 in malleation reservoir 3, under medicine action of hydraulic force, malleation reservoir 3 expands, interior reservoir liquid space increases, liquid medicine storage is in malleation reservoir 3, adopt elastic material to make due to malleation reservoir 3 and there is unidirectional dosing mouth 1, therefore, after stopping dosing from unidirectional dosing mouth 1, malleation reservoir 3 can shrink under natural resiliency effect, thus provide continuous positive pressure to medicine outlet 4, and realize continuing feeding, in feeding process, the output of medicinal liquid is limited by current limiting tube 5, to ensure to inject the Infusion Time (i.e. feeding time) of medicinal liquid within the scope of planned time by malleation reservoir 3.
As shown in Figure 2, venous detaining needle continues liquid dispensing apparatus by above-mentioned malleation, infusion tee 11, PVC hose, tongs 12, Paracentesis needle holder, Injector Bushing base, haemostat, puncture needle, remaining needle sleeve pipe, remaining needle sheath form, and the joint 6 that above-mentioned malleation continues liquid dispensing apparatus is arranged on positive pressure interface 10 place of infusion tee 11.
Compared with common remaining needle, after first day infusion-completed, the normal saline as long as malleation continued to annotate in liquid dispensing apparatus is also connected on venous detaining needle, malleation continues liquid dispensing apparatus just can continue feeding (in lasting feeding process, guarantee that tongs 12 can not be closed), again without the need to tube sealing, washing pipe in the whole indwelling process of venous detaining needle, just can resistant to blood adverse current, preventing thrombosis formed.By the slow release medicinal liquid that venous detaining needle of the present invention can also be stable, prevent from forming sludged blood in indwelling tube, avoid plugging phenomenon to occur, thus extend the service life of remaining needle, the clot because being formed also can be avoided to pour in the blood circulation of patient secondary injury is caused to patient.
Central venous catheter of the present invention, comprises infusion tee, and above-mentioned malleation continues the positive pressure interface place of jiont treatment at infusion tee of liquid dispensing apparatus.Its operation principle and process and above-mentionedly there is malleation to continue the venous detaining needle of liquid dispensing apparatus identical.
In like manner, other need the medical apparatus and instruments of venous indwelling, also be that then the normal saline that only needs malleation to continue to annotate in liquid dispensing apparatus is connected on this apparatus corresponding, malleation continues liquid dispensing apparatus will continue feeding, again without the need to tube sealing, washing pipe in the whole indwelling process of this apparatus, just can resistant to blood adverse current, preventing thrombosis formed.The present invention can also adopt electrodynamic pump etc. to carry out alternative malleation reservoir 3 to provide continuous positive pressure, realizes object of the present invention.
Claims (9)
1. a malleation continues liquid dispensing apparatus, it is characterized in that: comprise malleation reservoir (3) and joint (6), malleation reservoir (3) adopts elastic material to make, malleation reservoir (3) is arranged unidirectional dosing mouth (1) and medicine outlet (4), medicine outlet (4) is connected with joint (6) by current limiting tube (5).
2. malleation according to claim 1 continues liquid dispensing apparatus, it is characterized in that: also comprise a shell (8), and malleation reservoir (3) and current limiting tube (5) are arranged in shell (8).
3. malleation according to claim 2 continues liquid dispensing apparatus, it is characterized in that: described shell is transparent or semitransparent.
4. the malleation according to claim 1,2 or 3 continues liquid dispensing apparatus, it is characterized in that: the internal diameter of described current limiting tube (5) is less than 0.1mm.
5. the malleation according to claim 1,2 or 3 continues liquid dispensing apparatus, it is characterized in that: described joint (6) is outer cone joint.
6. the malleation according to claim 1,2 or 3 continues liquid dispensing apparatus, it is characterized in that: corresponding unidirectional dosing mouth (1) is provided with the first helmet (9).
7. the malleation according to claim 1,2 or 3 continues liquid dispensing apparatus, it is characterized in that: corresponding joints (6) is provided with the second helmet (7).
8. one kind has the venous detaining needle that the arbitrary described malleation of claim 1 ~ 7 continues liquid dispensing apparatus, comprise infusion tee (11), it is characterized in that: described malleation continues positive pressure interface (10) place that the joint of liquid dispensing apparatus (6) is arranged on infusion tee (11).
9. there is the central venous catheter that the arbitrary described malleation of claim 1 ~ 7 continues liquid dispensing apparatus, comprise infusion tee, it is characterized in that: described malleation continues the positive pressure interface place of jiont treatment at infusion tee of liquid dispensing apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510520270.XA CN105013045A (en) | 2015-08-21 | 2015-08-21 | Positive-pressure continuous liquid supply device, venous indwelling needle and central venous catheter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510520270.XA CN105013045A (en) | 2015-08-21 | 2015-08-21 | Positive-pressure continuous liquid supply device, venous indwelling needle and central venous catheter |
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| CN105013045A true CN105013045A (en) | 2015-11-04 |
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| CN201510520270.XA Pending CN105013045A (en) | 2015-08-21 | 2015-08-21 | Positive-pressure continuous liquid supply device, venous indwelling needle and central venous catheter |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105596209A (en) * | 2015-11-09 | 2016-05-25 | 曾居华 | Double-capsule positive-pressure liquid packaging bag |
| CN106730147A (en) * | 2017-02-15 | 2017-05-31 | 苏州鑫康道医疗科技有限公司 | Continuous positive pressure remaining needle |
| CN107185078A (en) * | 2017-05-27 | 2017-09-22 | 郭春燕 | Anticoagulant plugging remaining needle |
| CN107362412A (en) * | 2017-08-16 | 2017-11-21 | 裴泽军 | Double sacculus remaining needles |
| CN107684644A (en) * | 2016-08-04 | 2018-02-13 | 上海金塔医用器材有限公司 | It is pre- to rush formula flushing syringe infusion pump combination bag |
| CN108578824A (en) * | 2018-06-14 | 2018-09-28 | 潍坊医学院 | It prevents from blocking after remaining needle tube sealing, the pump of thrombosis and its working method |
| CN109225367A (en) * | 2018-10-30 | 2019-01-18 | 江苏旭龙环境科技有限公司 | A kind of reagent storage facility |
| CN110975061A (en) * | 2019-11-19 | 2020-04-10 | 王君霞 | Puncture-preventing remaining needle capable of continuously supplying liquid |
| WO2022048132A1 (en) * | 2020-09-02 | 2022-03-10 | 苏州林华医疗器械股份有限公司 | Continuous positive pressure maintaining needle |
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| CN205031651U (en) * | 2015-08-21 | 2016-02-17 | 淄博侨森医疗用品有限公司 | Malleation lasts administering means and needle, central venous catheter are kept somewhere to vein |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105596209A (en) * | 2015-11-09 | 2016-05-25 | 曾居华 | Double-capsule positive-pressure liquid packaging bag |
| CN107684644A (en) * | 2016-08-04 | 2018-02-13 | 上海金塔医用器材有限公司 | It is pre- to rush formula flushing syringe infusion pump combination bag |
| CN106730147A (en) * | 2017-02-15 | 2017-05-31 | 苏州鑫康道医疗科技有限公司 | Continuous positive pressure remaining needle |
| CN107185078A (en) * | 2017-05-27 | 2017-09-22 | 郭春燕 | Anticoagulant plugging remaining needle |
| CN107362412A (en) * | 2017-08-16 | 2017-11-21 | 裴泽军 | Double sacculus remaining needles |
| CN108578824A (en) * | 2018-06-14 | 2018-09-28 | 潍坊医学院 | It prevents from blocking after remaining needle tube sealing, the pump of thrombosis and its working method |
| CN109225367A (en) * | 2018-10-30 | 2019-01-18 | 江苏旭龙环境科技有限公司 | A kind of reagent storage facility |
| CN110975061A (en) * | 2019-11-19 | 2020-04-10 | 王君霞 | Puncture-preventing remaining needle capable of continuously supplying liquid |
| CN110975061B (en) * | 2019-11-19 | 2021-09-10 | 山东省千佛山医院 | Puncture-preventing remaining needle capable of continuously supplying liquid |
| WO2022048132A1 (en) * | 2020-09-02 | 2022-03-10 | 苏州林华医疗器械股份有限公司 | Continuous positive pressure maintaining needle |
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| CB02 | Change of applicant information |
Address after: Gaoqing County in Shandong province 256300 Zibo City High Court Road No. 2 Applicant after: Zibo overseas medical supplies Limited by Share Ltd Address before: Gaoqing County in Shandong province 256300 Zibo City High Court Road No. 2 Applicant before: ZIBO QIAOSEND MEDICAL ARTICLES CO., LTD. |
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Application publication date: 20151104 |
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