CN104399145A - Double-cavity-catheter self-sealing venous indwelling needle - Google Patents
Double-cavity-catheter self-sealing venous indwelling needle Download PDFInfo
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- 238000007789 sealing Methods 0.000 title claims abstract description 95
- 239000007788 liquid Substances 0.000 claims abstract description 55
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 230000000474 nursing effect Effects 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 238000001802 infusion Methods 0.000 claims abstract description 17
- 210000003462 vein Anatomy 0.000 claims abstract description 16
- 239000002775 capsule Substances 0.000 claims description 77
- 239000012224 working solution Substances 0.000 claims description 42
- 239000012530 fluid Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 19
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 16
- 238000001990 intravenous administration Methods 0.000 claims description 10
- 239000012153 distilled water Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 210000002583 cell-derived microparticle Anatomy 0.000 claims description 4
- 230000004927 fusion Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 9
- 206010047249 Venous thrombosis Diseases 0.000 abstract description 8
- 208000001297 phlebitis Diseases 0.000 abstract description 8
- 239000003344 environmental pollutant Substances 0.000 abstract description 7
- 231100000719 pollutant Toxicity 0.000 abstract description 7
- 208000027418 Wounds and injury Diseases 0.000 abstract 1
- 208000014674 injury Diseases 0.000 abstract 1
- 210000004369 blood Anatomy 0.000 description 12
- 239000008280 blood Substances 0.000 description 12
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 9
- 230000023555 blood coagulation Effects 0.000 description 9
- 229960002897 heparin Drugs 0.000 description 9
- 229920000669 heparin Polymers 0.000 description 9
- 239000000243 solution Substances 0.000 description 8
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- 230000014759 maintenance of location Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 210000004204 blood vessel Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000003146 anticoagulant agent Substances 0.000 description 4
- 229940127219 anticoagulant drug Drugs 0.000 description 4
- 230000017531 blood circulation Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 208000007536 Thrombosis Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
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- 238000002360 preparation method Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 206010019280 Heart failures Diseases 0.000 description 1
- 206010020772 Hypertension Diseases 0.000 description 1
- 206010022773 Intracranial pressure increased Diseases 0.000 description 1
- 239000004425 Makrolon Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- 206010047228 Venous injury Diseases 0.000 description 1
- 230000000721 bacterilogical effect Effects 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
- 230000010247 heart contraction Effects 0.000 description 1
- 230000002439 hemostatic effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000003978 infusion fluid Substances 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 201000009941 intracranial hypertension Diseases 0.000 description 1
- 238000002642 intravenous therapy Methods 0.000 description 1
- 208000017169 kidney disease Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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- 238000005192 partition Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- 239000000955 prescription drug Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- AJKIRUJIDFJUKJ-UHFFFAOYSA-N taurolidine Chemical compound C1NS(=O)(=O)CCN1CN1CNS(=O)(=O)CC1 AJKIRUJIDFJUKJ-UHFFFAOYSA-N 0.000 description 1
- 229960004267 taurolidine Drugs 0.000 description 1
- 210000004026 tunica intima Anatomy 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to a double-cavity-catheter self-sealing venous indwelling needle which consists of an indwelling catheter 1, a working liquid bag tube 2, an infusion tube cavity 3, a needle point groove 4, a flexible connecting tube 5, a pressuring block 6, a pressure-resistant liquid bag 7, lock catches 8, a needle seat 9 and a steel needle core 10 with a semicircular section. The double-cavity-catheter self-sealing venous indwelling needle is very simple to operate, tube sealing is finished under the condition that a working liquid is completely sealed, no pollutant enters, the needle can be used continuously without complications such as secondary injuries to veins, liquid leakage, phlebitis, venous thrombosis and the like, and a patient feels comfortable. Disposable syringes and flushers are not consumed, nursing operation steps are reduced, and the nursing efficiency and the nursing quality are improved.
Description
[technical field]
The invention belongs to technical field of medical instruments.More specifically, the present invention relates to a kind of double lumen tube self-sealing venous detaining needle.
[background technology]
The consumption of China's vein infusion solutions in 2013 is 10,400,000,000 bottles, and intravenous infusion device use amount is 3,000,000,000 covers, venous detaining needle consumption more than 300,000,000.The product mainly produced by the joint venture of U.S. company BD, joint venture of Bei Lang company and Shandong Wei Gao company, Suzhou Lin Hua company etc.
Venous detaining needle is also called venous catheter needle, and it is made up of rustless steel nook closing member, trocar sheath and plastics needle stand.During puncture, rustless steel nook closing member is thrust in blood vessel together with trocar sheath, after intravasation, extract rustless steel nook closing member out, allow soft trocar sheath stay and infuse in the blood vessel.Be flexible pipe owing to being retained in intravenous, avoid the damage of draw point to blood vessel, patient can be with pin gentle activity.Venous detaining needle is applicable to the puncture of any position, one-time puncture can continuously or interval repeatedly, many days use, alleviate the misery of patient's repeated localised puncture, alleviate the workload of nursing staff, dark being protected suffers from welcome clinically, saves a large amount of medical treatment and nursing manpower and materials simultaneously, there is Health Economics meaning, therefore the Nurses Association of China advocates use retention needle infusion, advocates " draw point zero tolerance " in demonstration hospital at present, advises that the infusion treatment of more than 2 times all uses remaining needle.
Venous detaining needle does not need to pull out after infusion-completed, use again when waiting until transfusion next time, due to vein blood back after stopping infusion, remaining needle plugging, therefore there is dispute in indwelling time length always, administrative department of public health, Quality Control department of hospital and remaining needle producer all advocate that indwelling time is no more than 3-4 days.
Venous detaining needle plugging is because blood backflow enters in catheter lumen, the blood coagulation substances such as the platelet in blood are in the conduit intravascular coagulation of low flow velocity, thrombosis and then plugging, for ensureing that conduit can be reused and must prevent plugging by tube sealing technology, specially develop a series of apparatus, medicine, operating technology and " specification ", " standard ".The U.S. is upgraded once " INS venous transfusion practice standard " by venous transfusion association for every 4 years, " the venous transfusion practice standard version in 2011 " of current use, China's national health and Family Planning Committee have issued " intravenous therapy nursing technical operation specification " on November 14th, 2013." tube sealing " has become a specific term in medical treatment and nursing.
Current standard method " tube sealing " method carries out " tube sealing " for using normal saline or heparin in sealing liquid to inject in conduit, its principle is hypothesis venous pressure is resting state, after normal saline or other tube-sealing solutions occupy conduit cavity space as working solution matter, blood and hemostatic composition thereof can not be entered in conduit; Secondly the normal saline in conduit can dilute the blood coagulation substance entered, and delays blood coagulation and thrombosis.The method can not avoid blood to enter conduit, and its reason is as follows: one, because breathing and heartbeat cause human peripheral vein pressure to be fluctuation, causes blood to enter in conduit and forms " blood back "; Its two, the platelet in blood, cell and blood coagulation substance form sludged blood after diffusing into and being filled in amount that " tube-sealing solution " in conduit reach certain.
This " tube sealing " needs to use the equipment such as " positive pressure connector ", " tube-sealing solution ", " rinsing tube sealing syringe ", is completed by meticulous technical operations such as " three subpulse formulas are injected " and " positive pressure tube sealings ".This method increase the workload of nurse; Disposable tube sealing irrigating syringe forms resource waste, adds Biohazard Waste and processing cost, is unfavorable for environmental protection.
Due to the effective time about 4 hours of " tube sealing " of normal saline, " tube sealing " should can only be used for the tube sealing of intermittence transfusion, " tube sealing " more than 4 hours must use heparin in sealing liquid.Heparin is anticoagulant prescription drugs, and nurse can not determine to use, because this increasing the workload of doctor; In addition, a part of patient can not use heparin medicinal liquid tube sealing because of body constitution and the state of an illness, and every 4 hours of this kind of patient " tube sealing " once, increases nursing work load, and impact sleep is had a rest, and affects patient comfort.
Current have a kind of method using mechanical piston to close or open needle stand place conduit at indwelling needle place to carry out the remaining needle of " tube sealing ", regardless of its operation principle, all form " valve " at needle stand place, time " tube sealing ", valve-off causes intravenous conduit to form a long and narrow dead space, blood coagulation substance in blood enters this section without in flow velocity dead space, and blood coagulation substance is attached to tube wall blood coagulation and forms plugging.Secondly on needle stand, external force of operated piston is passed to intravenous conduit, catheter displacement, comes off and scratches tunica intima, causes leakage of infusing, infuses unsuccessfully, phlebitis, phlebothrombosis etc.
Separately have a kind of self-enclosed remaining needle, its needle stand inner chamber is cut off part and is isolated into plemum and transfusing chamber two parts, and liquid energy automatic slowly during stopping infusion in plemum flows into transfusing chamber and reaches " tube sealing ".Principle is the same with normal saline " tube sealing ", the method just reduces " tube sealing " operation that nurse injects tube-sealing solution, tip due to inlying catheter is open, still return back out existing " blood back " and platelet and blood coagulation substance with the pressure oscillation of breathing and heart beating brings to enter, still can blood coagulation plugging.
Separately have other method arranging counterflow-preventing machinery flap valve, the unidirectional opening of duck-beak type at catheter tip, because " tube sealing " effect is uncertain, listing not recommended use in " venous transfusion practice standard " for many years, these products are commercially without trace.
Therefore, the present inventor, on the basis of summing up prior art, by lot of experiments, completes the present invention finally.
[summary of the invention]
[technical problem that will solve]
The object of this invention is to provide a kind of double lumen tube self-sealing venous detaining needle.
[technical scheme]
The present invention is achieved through the following technical solutions.
The present invention relates to a kind of double lumen tube self-sealing venous detaining needle.Described double lumen tube self-sealing venous detaining needle is primarily of compositions such as inlying catheter 1, as received basis liquid capsule pipe 2, transfusion lumen 3, needle point groove 4, flexible steel in flat section tubing 5, pressurizing block 6, the capsule of resistance to hydraulic fluid 7, snap close 8, needle stand 9, draw point cores 10.
Working solution matter capsule pipe 2 is placed within inlying catheter 1, as received basis liquid capsule pipe 2 and inlying catheter 1 terminal fusion are closed and form needle point groove 4, as received basis liquid capsule pipe 2 other end is connected with one end of flexible steel in flat section tubing 5 through needle stand 9 ectosome, and the other end of flexible steel in flat section tubing 5 is connected with the capsule of resistance to hydraulic fluid 7;
The capsule of resistance to hydraulic fluid 7 is placed in pressurizing block 6; When infusing, pressurizing block 6 being opened, allows working solution matter be back to the capsule of resistance to hydraulic fluid 7; When needing tube sealing after stopping infusion, pressurizing block 6 closed up, and pin snap close 8, allow working solution matter flow to liquid capsule 3, liquid capsule 3 extrudes transfusing chamber 4 and is formed closed.
A preferred embodiment of the invention, makes its full rear enclosed transfusion lumen 3 by injecting working solution matter to as received basis liquid capsule pipe 2.
According to another kind of preferred implementation of the present invention, described flexible steel in flat section tubing 5 can avoid nursing procedure external force cause the movement of intravenous catheter by needle stand or scratch vein blood vessel inner membrance.
According to another kind of preferred implementation of the present invention, the described capsule of resistance to hydraulic fluid 7 is cylindrical, cuboid, ellipse or circular.
According to another kind of preferred implementation of the present invention, described working solution matter is normal saline or distilled water.
According to another kind of preferred implementation of the present invention, inlying catheter 1, as received basis liquid capsule pipe 2, flexible steel in flat section tubing 5, the capsule of resistance to hydraulic fluid 7, needle stand 9, tube for transfusion 10 manufacture with liquid capsule pipeline 13 Merlon or polyethylene, and wherein working solution matter capsule pipe 2 can elastic dilatation after filling.
According to another kind of preferred implementation of the present invention, the cross section of draw point core 10 is semicircle.
In more detail the present invention will be described below.
The present invention is the physical method allowing working solution matter capsule occupy space in conduit, fluid properties makes working solution capsule can fill up each gap of indwelling needle catheter transfusing chamber, shutoff from catheter tip, gap is not stayed not stay dead space towards intravenous conduit, thorough partition blood and conduit, meet physiology and medicine principle.
Different with saline occupy-place tube sealing from the dilution anticoagulant tube sealing of normal saline, working solution capsule of the present invention occupies the physical method in space in conduit does not have " working solution matter " to enter blood circulation of human body, without the need to carrying out the control of pharmaceutically grade to " working solution matter ".
The present invention relates to a kind of double lumen tube self-sealing venous detaining needle.Described double lumen tube self-sealing venous detaining needle is made up of inlying catheter 1, as received basis liquid capsule pipe 2, transfusion lumen 3, needle point groove 4 flexible steel in flat section tubing 5, pressurizing block 6, the capsule of resistance to hydraulic fluid 7, snap close 8, needle stand 9, draw point core 10.The concrete structure of double lumen tube self-sealing venous detaining needle of the present invention is see accompanying drawing 1.
Working solution matter capsule pipe 2 is placed within inlying catheter 1, as received basis liquid capsule pipe 2 and inlying catheter 1 terminal fusion are closed and form needle point groove 4, as received basis liquid capsule pipe 2 other end is connected with one end of flexible steel in flat section tubing 5 through needle stand 9 ectosome, and the other end of flexible steel in flat section tubing 5 is connected with the capsule of resistance to hydraulic fluid 7;
Described double lumen tube self-sealing venous detaining needle makes its full rear enclosed transfusion lumen 3 by injecting working solution matter to as received basis liquid capsule pipe 2.Described as received basis liquid capsule is positioned at transfusion lumen.According to the present invention; transfusion lumen 3 closed by every liquid capsule 2 occupying infusion channel that to arrange in transfusion lumen; no matter its liquid capsule 2 is the longitudinal overall length of transfusion lumen 3 or partial-length; no matter its liquid capsule 2 is arranged at the tip of transfusion lumen 3 or a certain section; no matter its liquid capsule 2 is arranged at the part or all of of the cross section of transfusion lumen 3, and such liquid capsule is also all in protection scope of the present invention.
Its full rear enclosed transfusion lumen 3 is made by injecting working solution matter to as received basis liquid capsule pipe 2.Described working solution matter is normal saline or distilled water.According to the present invention; every have with normal saline or distilled water character is close, to human body without any other liquid endangered as: ethanol, sodium citrate, Taurolidine, ethylenediaminetetraacetic acid etc. also can be used as working solution matter of the present invention, and these liquid are also all within protection scope of the present invention.
According to the present invention, described flexible steel in flat section tubing 5 can avoid nursing procedure external force cause the movement of intravenous catheter by needle stand or scratch vein blood vessel inner membrance.
Described inlying catheter 1, as received basis liquid capsule pipe 2 manufacture with flexible steel in flat section tubing 5 Merlon or polyethylene, and wherein working solution matter capsule pipe 2 can elastic dilatation after filling.
The capsule of resistance to hydraulic fluid 7 that the present invention uses is cylindrical, cuboid, ellipse or circular, and the shape of employing is determined according to actual service condition, to make the ability with certain resorption working solution matter.The capsule of resistance to hydraulic fluid 7 is equipped with described working solution matter, and its filling weight is determined according to service condition.The capsule of resistance to hydraulic fluid 7 is placed in pressurizing block 6; When infusing, pressurizing block 6 being opened, allows working solution matter be back to the capsule of resistance to hydraulic fluid 7; When needing tube sealing after stopping infusion, pressurizing block 6 closed up, and pin snap close 8, allow working solution matter flow to liquid capsule 3, liquid capsule 3 extrudes transfusing chamber 4 and is formed closed.When infusing, needle tubing enlarged diagram is shown in Fig. 4; When " tube sealing ", needle tubing enlarged diagram is shown in Fig. 5.
Needle stand 9 close-up schematic view that the present invention uses is shown in accompanying drawing 2, it is product sold in the market, such as by Bibi Medical Apparatus Co., Ltd., Suzhou with the closed remaining needle of trade name " fearful agate ", Weigao Group Co., Ltd. with the disposable vein remaining needle of trade name " clean auspicious ", or Linhua Medical Appliances Co., Ltd., Suzhou sell " pipe-blocking-proof remaining needle " product.
The capsule of resistance to hydraulic fluid 7, needle stand 9, tube for transfusion 10 manufacture with liquid capsule pipeline 13 Merlon or polyethylene.
Described Merlon or polyethylene are all product solds in the market, such as by Bayer A.G with trade name MAKROLON or Malaysian PETLIN company with trade name PETLIN product sold.
According to another kind of preferred implementation of the present invention, the cross section of draw point core 10 is semicircle.
Draw point core 10 cross section is that semicircular object is to hold as received basis liquid capsule (2).
Double lumen tube self-sealing venous detaining needle of the present invention can conveniently venous detaining needle using method use, and just notices whether preoperation inspection working solution matter leaks.
The present invention does not use anticoagulant heparin medicine " tube sealing ", and the patient of heparin taboo person, any body constitution and the state of an illness can use safely, without the need to diagnosis and prescription, saves intelligence cost.
Double lumen tube self-sealing venous detaining needle of the present invention completes tube sealing under the totally-enclosed condition of working solution matter, without the need to the calparine cap that punctures, enters blood circulation without rubber impurities and pollutant; Without the need to injecting tube-sealing solution by " positive pressure connector ", reducing by a pollution section, extending the service time of remaining needle, using manpower and material resources sparingly.
Flexible steel in flat section tubing of the present invention avoids the nursing procedure on needle stand, be passed to indwelling needle catheter without external force and cause the complication such as vein secondary damage, leakage, phlebitis, phlebothrombosis, extend the service time of remaining needle, use manpower and material resources sparingly, increase the comfortableness of patient.
Double lumen tube self-sealing venous detaining needle operation of the present invention is extremely simple, singlehanded pressing pressue device can be opened " tube sealing " and remove " tube sealing " operation, without the need to conventional " positive pressure tube sealing " fine techniques operation, without the need to aspiration medicinal liquid and preparation tube-sealing solution, without the need to consuming disposable syringe, irrigator, save nursing procedure step, improve nursing efficiency and quality.
The present invention does not use metal spring and other materials, avoids the various drawbacks of spring valve, flap valve, piston and lubricant.
The present invention uses and has ratified and be widely used in medical macromolecular material, without the need to carrying out certification and examination & approval to material.
[beneficial effect]
The invention has the beneficial effects as follows:
The present invention does not use anticoagulant heparin medicine " tube sealing ", and therefore, double lumen tube self-sealing venous detaining needle of the present invention is applicable to the patient of heparin taboo person and any body constitution and the state of an illness, use safety, without the need to diagnosis and prescription, saves intelligence cost.
Double lumen tube self-sealing venous detaining needle of the present invention completes tube sealing under the totally-enclosed condition of working solution matter, enters without rubber impurities and pollutant, extends the service time of remaining needle, uses manpower and material resources sparingly.
The operation on needle stand avoided by the flexible tube sealing of the present invention, is passed to indwelling needle catheter and causes the complication such as vein secondary damage, leakage, phlebitis, phlebothrombosis, extend the service time of remaining needle, increase the comfortableness of patient without external force.
Double lumen tube self-sealing venous detaining needle operation of the present invention is extremely simple, without the need to aspiration medicinal liquid and preparation tube-sealing solution, without the need to consuming disposable syringe, irrigator, saving nursing procedure step, improving nursing efficiency and quality.
[accompanying drawing explanation]
Fig. 1 is double lumen tube self-sealing venous detaining needle structural representation;
Fig. 2 is needle stand 9 close-up schematic view;
Fig. 3 is draw point core cross section enlarged diagram;
Fig. 4 is the needle tubing enlarged diagram when infusing;
Fig. 5 is the needle tubing enlarged diagram when " tube sealing ";
In figure:
1-inlying catheter, 2-as received basis liquid capsule pipe, 3-transfusion lumen, 4-needle point groove, 5-flexible steel in flat section tubing, 6-pressurizing block, the 7-capsule of resistance to hydraulic fluid, 8-snap close, 9-needle stand, 10-draw point core.
[detailed description of the invention]
The indwelling time of current routine intravenous vein is 3 ~ 4 days, often because plugging or venous injury are pulled out in advance; Because the damage of skin and venipuncture place has potential bacteriological infection risk, remaining needle within more than 6 days, should pull out after elsewhere puncture insert new indwelling needle catheter, it within 6 days, is the upper limit of conventional indwelling time, indwelling time of the present invention all can meet or exceed 6 day time, coordinates can reach longer indwelling time if any gnotobasis and application antibiotic.
The present invention can be understood better by following embodiment.
Embodiment 1: double lumen tube self-sealing venous detaining needle of the present invention
Double lumen tube self-sealing venous detaining needle of the present invention is made up of with semi-circular cross-section draw point core 10 inlying catheter 1, as received basis liquid capsule pipe 2, transfusion lumen 3, needle point groove 4, flexible steel in flat section tubing 5, pressurizing block 6, the capsule of resistance to hydraulic fluid 7, snap close 8, needle stand 9.
Working solution matter capsule pipe 2 is placed within inlying catheter 1, as received basis liquid capsule pipe 2 and inlying catheter 1 terminal fusion are closed and form needle point groove 4, as received basis liquid capsule pipe 2 other end is connected with one end of flexible steel in flat section tubing 5 through needle stand 9 ectosome, and the other end of flexible steel in flat section tubing 5 is connected with the capsule of resistance to hydraulic fluid 7; By making its full rear enclosed transfusion lumen 3 to as received basis liquid capsule pipe 2 saline injection or distilled water working solution matter.Described flexible steel in flat section tubing 5 can avoid nursing procedure external force cause the movement of intravenous catheter by needle stand or scratch vein blood vessel inner membrance.
The cylindrical capsule of resistance to hydraulic fluid 7 is placed in pressurizing block 6; When infusing, pressurizing block 6 being opened, allows working solution matter be back to the capsule of resistance to hydraulic fluid 7; When needing tube sealing after stopping infusion, pressurizing block 6 closed up, and pin snap close 8, allow working solution matter flow to liquid capsule 2, the full transfusing chamber 3 that fills up of liquid capsule 2 is formed closed.
Use the self-sealing venous indwelling of the present embodiment to carry out retention needle infusion and tube sealing for the patient suffering from " heparin contraindication ", usual this kind of patient can only use normal saline tube sealing, and every 4 hours repeat once " tube sealing ", less than 3 days remaining needle retention time.The present invention's operation is extremely simple, tube sealing is completed under the totally-enclosed condition of working solution matter, blood circulation is entered without any liquid or medicine, enter without any pollutant, continue use 6 days without complication such as any vein secondary damage, leakage, phlebitis, phlebothrombosises, a tube sealing operation can be maintained to transfusion in second day, patient comfort.Do not consume disposable syringe, irrigator, save nursing procedure step, improve nursing efficiency and quality.
Embodiment 2: double lumen tube self-sealing venous detaining needle of the present invention
This embodiment is identical with the embodiment of embodiment 1, just uses distilled water working solution matter, the cuboid capsule of resistance to hydraulic fluid 7.
Use the self-sealing venous indwelling of the present embodiment for suffering from " intracranial hypertension, hypertension, heart failure, nephropathy " patient carry out retention needle infusion and tube sealing, this kind of patient limits saline input, conventional washing pipe and tube sealing sodium salt outside the amount of imports and liquid can enter health, use the Yan Heshui that the patient of tube sealing of the present invention avoids input too much.The present invention's operation is extremely simple, under the totally-enclosed condition of working solution matter, complete tube sealing, enter blood circulation without any liquid and medicine, enter without any pollutant, continue use 6 days without complication such as any vein secondary damage, leakage, phlebitis, phlebothrombosises, patient comfort.Do not consume disposable syringe, irrigator, save nursing procedure step, improve nursing efficiency and quality.
Embodiment 3: double lumen tube self-sealing venous detaining needle of the present invention
This embodiment is identical with the embodiment of embodiment 1, just uses normal saline working solution matter, the oval capsule of resistance to hydraulic fluid 7.
Use the present embodiment double lumen tube self-sealing venous indwelling for " long-term infusion " or " high-leveled and difficult venipuncture " patient carry out retention needle infusion and tube sealing, the blood vessel that usual this kind of patient may be used for puncturing and infusing is difficult to find, blood vessel is through repeated localised puncture degeneration, each venipuncture is the devil, patient's angor, therefore each venous transfusion passage all should keep clear, and uses the present invention can extend the service time of infusion channel as far as possible.The present invention's operation is extremely simple, completes tube sealing, enter without any pollutant under the totally-enclosed condition of working solution matter, continues use 10 days without complication such as any vein secondary damage, leakage, phlebitis, phlebothrombosises, patient comfort.Do not consume disposable syringe, irrigator, save nursing procedure step, improve nursing efficiency and quality.
Embodiment 4: double lumen tube self-sealing venous detaining needle
This embodiment is identical with the embodiment of embodiment 1, just uses distilled water working solution matter, the Long Circle capsule of resistance to hydraulic fluid 7.
The double lumen tube self-sealing venous indwelling of the present embodiment is used to carry out retention needle infusion and tube sealing for the patient of " medicine and normal saline may produce incompatibility ", the present invention uses distilled water not have sodium ion to infiltrate into the potential risk of transfusing chamber as received basis liquid, operate extremely simple, tube sealing is completed under the totally-enclosed condition of working solution matter, enter without any pollutant, continue use 6 days without complication such as any vein secondary damage, leakage, phlebitis, phlebothrombosises, patient comfort.Do not consume disposable syringe, irrigator, save nursing procedure step, improve nursing efficiency and quality.
Claims (7)
1. a double lumen tube self-sealing venous detaining needle, is characterized in that described self-sealing venous detaining needle is primarily of inlying catheter (1), as received basis liquid capsule pipe (2), transfusion lumen (3), needle point groove (4) flexible steel in flat section tubing (5), pressurizing block (6), the capsule of resistance to hydraulic fluid (7), snap close (8), needle stand (9), draw point core (10) composition;
Working solution matter capsule pipe (2) is placed within inlying catheter (1), as received basis liquid capsule pipe (2) and inlying catheter (1) terminal fusion are closed and form needle point groove (4), as received basis liquid capsule pipe (2) other end is connected with one end of flexible steel in flat section tubing (5) through needle stand (9) ectosome, and the other end of flexible steel in flat section tubing (5) is connected with the capsule of resistance to hydraulic fluid (7);
The capsule of resistance to hydraulic fluid (7) is placed in pressurizing block (6); When infusing, pressurizing block (6) being opened, allows working solution matter be back to the capsule of resistance to hydraulic fluid (7); When needing tube sealing after stopping infusion, pressurizing block (6) is closed up, and pin snap close (8), allow working solution matter flow to as received basis liquid capsule (2), liquid capsule (2) is full to be occupied transfusing chamber (3) space and is formed closed.
2. double lumen tube self-sealing venous detaining needle according to claim 1, is characterized in that making its full rear enclosed transfusion lumen (3) by injecting working solution matter to as received basis liquid capsule pipe (2).
3. double lumen tube self-sealing venous detaining needle according to claim 1, is characterized in that described flexible steel in flat section tubing (5) can avoid nursing procedure external force cause the movement of intravenous catheter by needle stand or scratch vein blood vessel inner membrance.
4. double lumen tube self-sealing venous detaining needle according to claim 1, is characterized in that the described capsule of resistance to hydraulic fluid (7) is cylindrical, oval, cuboid, ellipse or circular.
5. the double lumen tube self-sealing venous detaining needle capsule of resistance to hydraulic fluid according to claim 1, is characterized in that described working solution matter is normal saline or distilled water.
6. double lumen tube self-sealing venous detaining needle according to claim 1, it is characterized in that inlying catheter (1), as received basis liquid capsule pipe (2), flexible steel in flat section tubing (5), the capsule of resistance to hydraulic fluid (7), needle stand (9), tube for transfusion (10) manufacture with liquid capsule pipeline (13) Merlon or polyethylene, wherein working solution matter capsule pipe (2) can elastic dilatation after filling.
7. double lumen tube self-sealing venous detaining needle according to claim 4, is characterized in that the cross section of draw point core (10) is for semicircle.
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| CN201410789774.7A CN104399145B (en) | 2014-12-18 | 2014-12-18 | A kind of double lumen tube self-sealing venous detaining needle |
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| CN201410789774.7A CN104399145B (en) | 2014-12-18 | 2014-12-18 | A kind of double lumen tube self-sealing venous detaining needle |
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| CN104399145B CN104399145B (en) | 2016-11-23 |
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| CN104721913A (en) * | 2015-04-10 | 2015-06-24 | 邓杜娟 | Self-sealing type venous indwelling needle and production method thereof |
| CN104826196A (en) * | 2015-05-29 | 2015-08-12 | 邓杜娟 | Self-sealing type venous indwelling needle with liquid bag in needle holder |
| CN104922761A (en) * | 2015-06-24 | 2015-09-23 | 湛江健力源医疗用品有限公司 | Remaining needle with double catheters |
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| CN107485757A (en) * | 2017-08-16 | 2017-12-19 | 裴泽军 | Novel remaining needle |
| CN114588379A (en) * | 2022-03-11 | 2022-06-07 | 上海交通大学医学院附属第九人民医院 | Infusion leather strip with tube flushing liquid and using method thereof |
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| CN114588379A (en) * | 2022-03-11 | 2022-06-07 | 上海交通大学医学院附属第九人民医院 | Infusion leather strip with tube flushing liquid and using method thereof |
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Effective date of registration: 20181031 Address after: 850000 West Wing of Building 1, 1 Industrial Park, South Road, Lhasa economic and Technological Development Zone, Tibet, China. Patentee after: Tibet Da Xin Health Technology Co., Ltd. Address before: 430077 59-1-1, new village, Gao Jia Wan, Wuchang District, Wuhan, Hubei. Patentee before: Deng Dujuan |
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