CN104208770B - Tube sealing injection device avoiding venous indwelling needle blockage - Google Patents
Tube sealing injection device avoiding venous indwelling needle blockage Download PDFInfo
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- CN104208770B CN104208770B CN201410531712.6A CN201410531712A CN104208770B CN 104208770 B CN104208770 B CN 104208770B CN 201410531712 A CN201410531712 A CN 201410531712A CN 104208770 B CN104208770 B CN 104208770B
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- needle
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- piston structure
- hollow
- tube sealing
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Abstract
The invention relates to a tube sealing injection device avoiding venous indwelling needle blockage. The tube sealing injection device comprises an injection needle head with a connecting hose, a hollow tube body and a hollow piston-like structure, a nipple structure is arranged at one end of the hollow tube body, an internal thread is arranged on the inner surface of the hollow tube body, accurate volume scales are uniformly formed on the outer surface of the hollow tube body at intervals, an accurate external thread is arranged on the outer surface of the piston-like structure, the nipple structure and the other end of the connecting hose are hermetically and coaxially mounted together in a communicated manner, and the hollow tube body and the piston-like structure are coaxially mounted together by thread engagement. Liquid advance speed can be effectively controlled by the thread structure, stable and low advance speed is beneficial to effective tube sealing and blockage prevention, liquid medicines can be effectively prevented from seeping from the hollow tube body, operation difference of staff can be decreased, and the problems of untight tube sealing, tube blockage and the like caused by operation difference of the staff can be effectively reduced.
Description
Technical field
The invention belongs to technical field of medical equipment, it is related to a kind of medical apparatus and instruments, especially a kind of mitigation person works' amount,
Reduce the personnel to operate difference, effective injection device reducing Catheter blocking probability.
Background technology
In recent years, venous detaining needle technology constantly develops, with its simple to operate, soft sleeve, sleeve pipe in intravenouss indwelling
Time length and be difficult the features such as wear out blood vessel and be widely used in clinic；At present, it has also become the main tool of clinical transfusion treatment.
But, with the use of venous detaining needle, the complication such as phlebitis, plugging indwelling time are short is increasing, and due to personnel
The problems such as some plugging rates that difference in operation leads to raise occurs in succession.Reduce plugging rate for this, extend indwelling time, reduce people
Member's difference in operation, becomes the focus of remaining needle clinical research in recent years.
At present, after mainly extracting tube-sealing solution by medical personnel using ordinary syringe, tube sealing is carried out to venous detaining needle
Reason, this ordinary syringe syringe needle length, human users' difference are big, inevitably occur that tube-sealing solution is injected in use
Speed and the difference of injection volume, thus leading to tube sealing tight or the problems such as plugging rate raises, in addition, the tube-sealing solution master currently using
If heparin sodium etc., it is the dosage form of high concentration mostly this kind of medicine, and the concentration needed for tube sealing is very low, after needing medical personnel's dilution
Use, thus can increase when the many patients of large volume tube-sealing solution use the problems such as risk of cross-contamination and drug waste.Cause
This, design a kind of can pre-install clinical demand acute drug, reduce operator's difference injection device have great facing
Bed meaning.
By retrieving, the discovery several patent publication us related to present patent application as follows:
1st, a kind of convenient type preventing thrombosis Catheter device (cn102600528a), is that a kind of convenient type preventing thrombosis are quiet
Vein tube clipper, by hirudin liquid injection device sealing external cover, hirudin cavity, simplified, secondary piston, piston push rod, after
Piston composition preventing thrombosis Catheter device it is characterised in that simplified interior have a secondary piston, be fixed on secondary piston
Piston push rod, the rear end of piston push rod is connected to piston after power, and there is a closure simplified front end, forms a sky with piston
Chamber, cavity is built with hirudin concentrated solution.When completing transfusion and suspending and need tube sealing, open convenient type preventing thrombosis venous indwelling
After pin tube clipper outer package and closure, take off the calparine cap on original remaining needle, change convenient type preventing thrombosis venous detaining needle
Tube clipper, piston after propulsion power, form positive pressure, hirudin concentrated solution is injected into remaining needle intracavity by inlet, and
Dissolve in transfusion, while forming positive pressure, play the effect of the dual preventing thrombosis of easy tube sealing again.
2nd, the anticoagulation pipe sealing device (cn102488939a) of venous detaining needle, including the liquid storing bag being arranged in support and
It is arranged on the roller between support two side, the liquid in liquid storing bag is promoted forward.The left and right sides wall upper end compartment of terrain of support
Form inclined-plane and depression, the wheel shaft of roller central authorities setting is connected in depression and along inclined-plane rolls forward.Contain in liquid storing bag
Liquid is hirudin diluent.The anticoagulation pipe sealing device of the venous detaining needle of the present invention, can be connected with existing remaining needle,
And need not in addition transform remaining needle.The distance between pipe sealing device each two depression, through calculating, is able to ensure that tube-sealing solution
Tube chamber full of remaining needle, avoids backflow of blood and blood coagulation plugging, facilitates the use of nurse and patient.Anti- in pipe sealing device
Hirudin diluent is selected in solidifying agent, and compared with other tube-sealing solutions, hirudin had both had good anticoagulation, did not interfered with blood again
The detection of anticoagulin in liquid, is suitably used for tube sealing in the transfusion of multiple discontinuity and blood collection procedure.
3rd, hirudin anticoagulant blood pipe sealing device (cn102120051a) of venous detaining needle, including sleeve pipe, it is connected to sleeve pipe
The transparent threeway of rear end and the infusion connector connecting infusion pipeline or blood sampling pipe；The stage casing of extension tube is provided with connection tube sealing note
The connecting portion of emitter；Tube sealing syringe includes the liquid storage pipe being internally formed tube chamber, be connected to seal pipe front end needle portion and
It is socketed in that liquid storage pipe is outer and the shell of back-end closure；The clamping line of projection is formed with the periphery wall of liquid storage pipe rear end；Before shell
It is formed with draw-in groove on the internal perisporium at end, shell internal perisporium is formed with the card rank of interval same distance；Be provided with liquid storage pipe with
The sealing-plug that housing back wall connects.The hirudin anticoagulant blood pipe sealing device of this venous detaining needle, ensures to push same dose every time
Tube-sealing solution and be able to ensure that tube-sealing solution is full of the tube chamber of remaining needle.Tube-sealing solution in tube sealing syringe selects hirudin to dilute
Liquid, had both had good anticoagulation, did not interfered with the indices of serum test in blood again.
By contrast, there are the different of essence from above-mentioned patent publication us in present patent application.
Content of the invention
It is an object of the invention to overcoming medical personnel using ordinary syringe when carrying out Catheter, exist
Human users' difference, cross-contamination, drug waste the problems such as, provide one kind to avoid human users' difference, clinical institute can be pre-installed
Need the tube sealing injection device avoiding venous detaining needle blocking of acute drug, this injection device is clinical according to Catheter
Experience and design, structure is simple, it is easy, with low cost to make, and the device avoids the difference of human users during tube sealing
The risk of cross-contamination and drug waste etc. between different, patient, have that easy to use, to strengthen tube sealing effect, minimizing personnel poor
The good characteristic such as different.
For achieving the above object, the present invention employs the following technical solutions to realize:
A kind of tube sealing injection device avoiding venous detaining needle blocking, is included with the connection injection needle of flexible pipe, hollow
The class piston structure of hollow body and hollow, one end of described hollow body is set to nipple structure, the inner surface system of hollow body
There is female thread, the uniform interval of outer surface is formed with precise volumes scale, and the outer surface of described class piston structure is formed with accurate external screw thread,
Described nipple structure is installed together with the other end sealing coaxial communication being connected flexible pipe, and the other end of described hollow body passes through
Together with female thread is co-axially mounted with the accurate external screw thread screw thread engagement of the outer surface of class piston structure.
And, uniformly to be formed with body anti-skidding at interval vertically for the outer surface near class piston structure end for the described hollow body
Stricture of vagina, the remote hollow pipe body end of described class piston structure is set to larger diameter end, uniform vertically on the outer surface of this larger diameter end between
Every being formed with non-skid thread.
And, the length of injection needle is slightly longer than the thickness of conventional venous detaining needle calparine cap.
And, described female thread or accurate external screw thread determine pitch by clinical vein remaining needle optimal tube sealing speed.
And, described injection needle is made up of medical plastic or medical stainless steel material.
And, described hollow body or class piston structure are processed by medical plastic.
And, described injection needle length is the 1/10-1/2, internal diameter 0.25mm- of conventional infusion injection needle length
1.5mm, hose length 10-20cm.
And, described injection needle length is 2-10mm.
And, the total length 5-20cm of described hollow body, one end nipple structure external diameter 5mm, internal diameter 2mm；Outside the other end
Footpath 0.5-2cm, internal diameter 0.3-2cm, internal whorl pitch 0.25-5mm at nearly class piston structure end.
And, described class piston structure total length 5-21cm, one end length 5-20cm, diameter 0.5-2cm, pitch 0.25-
5mm；Length 1cm of larger diameter end, diameter 0.5-2.5cm.
Advantages of the present invention and good effect are:
1st, the helicitic texture of injection device setting of the present invention, according to clinical effectively tube sealing dosage and speed designs, described sky
Heart body and class piston structure are equipped with screw thread, are together by a threaded connection, when using this device, by helicitic texture control
System, can effective control liquid fltting speed, stablize slow fltting speed be conducive to effective tube sealing and prevent blocking it is possible to have
Effect prevents medicinal liquid from oozing out from hollow body, can reduce the difference of operation between personnel, can effectively reduce due to human users' difference
The tube sealing causing is tight, plugging the problems such as appearance.
2nd, the needle length of injection device of the present invention is short, internal diameter is little, in tube sealing, can reduce the syringe needle pushing in calparine cap
Volume, is effectively prevented from tube sealing and finishes the negative pressure producing during the withdraw of the needle, and the triviality reducing the personnel to operate enhances tube sealing effect.
3rd, the present invention can pre-install clinical demand concentration liquid, can be prevented effectively from the intersection that Clinical practice large volume medicinal liquid causes
The problems such as pollution；Meanwhile, the class piston structure outer wall of this injection device has uniform non-skid thread, and the personnel of being convenient to operation are revolved
Enter injection operation.
4th, hose connection injection needle is passed through in hollow body one end of apparatus of the present invention, and the other end passes through helicitic texture and class
Piston structure connects, and outer wall indicates precise volumes scale, inwall has accurate thread structure, and this helicitic texture passes through clinical vein
Remaining needle optimal tube sealing speed determines pitch, and Main Function is: (1) can pre-install the tube-sealing solution of clinical demand concentration and volume；(2)
The tube sealing excessive velocities problem that human users cause can be prevented effectively from；(3) sealing process is played to the medicinal liquid in pre- tubulature.
5th, the length of apparatus of the present invention injection needle is slightly longer than the thickness of conventional venous detaining needle calparine cap, Main Function
It is: (1) connect infusion device and venous detaining needle is infused；(2), after transfusion terminates, it is connected with this injection device, enters row vein
Remaining needle tube sealing is processed；(3) can effectively prevent tube sealing from terminating, the generation of negative pressure in venous detaining needle, reduces plugging rate.
Brief description
Fig. 1 is the structure connection diagram of apparatus of the present invention.
Specific embodiment
For present disclosure, feature and effect can be further appreciated that, hereby enumerate following examples, and coordinate accompanying drawing detailed
It is described as follows.It should be noted that the present embodiment is descriptive, it is not determinate it is impossible to thus limit the guarantor of the present invention
Shield scope.
A kind of tube sealing injection device avoiding venous detaining needle blocking, as shown in figure 1, include the injection with connecting flexible pipe 10
The class piston structure 4 of syringe needle 1, the hollow body 6 of hollow and hollow, one end of described hollow body is set to nipple structure 9, hollow
The inner surface of body is formed with female thread 7, and the uniform interval of outer surface is formed with precise volumes scale 8, the appearance of described class piston structure
Face is formed with accurate external screw thread 3, and described nipple structure is installed together with the other end sealing coaxial communication being connected flexible pipe, described sky
The other end of heart body is engaged with the accurate external screw thread screw thread of the outer surface of class piston structure by female thread and is coaxially mounted to one
Rise.
The outer surface near class piston structure end for the described hollow body is uniformly spaced vertically and is formed with body anti-slip veins 5, institute
The remote hollow pipe body end stating class piston structure is set to larger diameter end, and on the outer surface of this larger diameter end, uniform interval is formed with vertically
Non-skid thread 2, the setting of anti-slip veins increased hollow body and the frictional force of class piston structure, facilitates operator's operation.
Described hollow body and class piston structure are equipped with screw thread, are together by a threaded connection.During operation, by controlling
Be threaded into speed, can effective control liquid fltting speed, stablize slow fltting speed and be conducive to effective tube sealing and prevent from blocking up
, it is possible to effectively prevent medicinal liquid from oozing out from hollow body, the difference that can reduce operation between personnel is (as using this example 10ml body for plug
Long-pending injection device, the heparin in sealing liquid of prepackage 5ml concentration 125u/ml, it can be controlled in inject in 20-30s and finish, often enclose screw thread
Precession tube-sealing solution volume is 0.628ml, and controllable often circle rotational time is operated between 2.5s-5s).
Described injection needle can meet medical material by medical plastic, medical stainless steel material or other and make, hollow
Body and class piston structure can be processed by medical plastic.
In the present embodiment, the length of injection needle is slightly longer than the thickness of conventional venous detaining needle calparine cap, can reduce operator
During member's tube sealing when injecting the withdraw of the needle operation, Main Function is: (1) connects infusion device and venous detaining needle and is infused；(2) defeated
After liquid terminates, it is connected with this injection device, carry out Catheter process；(3) can effectively prevent tube sealing from terminating, vein stays
Put the generation of negative pressure in pin, reduce plugging rate.
Hose connection injection needle is passed through in hollow body one end, and the other end is connected with class piston structure by helicitic texture,
Outer wall indicates precise volumes scale, and inwall has accurate thread structure, and this helicitic texture is most preferably sealed by clinical vein remaining needle
Pipe speed determines pitch, and Main Function is: (1) can pre-install the tube-sealing solution of clinical demand concentration and volume；(2) can be prevented effectively from
The tube sealing excessive velocities problem that human users cause；(3) sealing process is played to the medicinal liquid in pre- tubulature.
Described syringe needle is processed into hose length 15cm using medical stainless steel material and medical plastic, needle length 3mm, about
For the 3/10 of conventional infusion injection needle length, diameter 0.65mm.
Described hollow body is made up of medical pp material, total length 16cm, one end nipple structure external diameter 5mm, internal diameter 2mm；
Other end external diameter 1.3cm, internal diameter 1cm, internal whorl pitch 2mm at nearly class piston structure end.
Described class piston structure is made up of medical pp material, total length 16cm, one end length 15cm, diameter 1cm, pitch
2mm；Length 1cm of larger diameter end, diameter 1.5cm.
With the above-mentioned preferable case study on implementation according to the present invention for enlightenment, by above-mentioned description, relevant staff
Various change and modification can be carried out in the range of without departing from this invention technological thought completely.Expect invent skill
The content that art scope is not limited in description it is necessary to determine its technical scope according to right.
Claims (1)
1. a kind of avoid venous detaining needle blocking tube sealing injection device it is characterised in that: include band connection flexible pipe injection needle
The class piston structure of head, the hollow body of hollow and hollow, one end of described hollow body is set to nipple structure, hollow body
Inner surface is formed with female thread, and the uniform interval of outer surface is formed with precise volumes scale, and the outer surface of described class piston structure is formed with essence
Close external screw thread, described nipple structure is installed together with the other end sealing coaxial communication being connected flexible pipe, described hollow body
The other end pass through female thread and the outer surface of class piston structure accurate external screw thread screw thread engage and be co-axially mounted together with；Described sky
The outer surface near class piston structure end for the heart body vertically uniformly interval be formed with body anti-slip veins, described class piston structure remote
Hollow pipe body end is set to larger diameter end, and on the outer surface of this larger diameter end, uniform interval is formed with non-skid thread vertically；Described injection
The length of syringe needle is slightly longer than the thickness of conventional venous detaining needle calparine cap；Described female thread or accurate external screw thread pass through clinical vein
Remaining needle optimal tube sealing speed determines pitch；Described injection needle is made up of medical plastic or medical stainless steel material；Described sky
Heart body or class piston structure are processed by medical plastic；Described injection needle length is conventional infusion injection needle length
1/10-1/2, internal diameter 0.25mm-1.5mm, hose length 10-20cm；Described injection needle length is 2-10mm；Described hollow pipe
The total length 5-20cm of body, one end nipple structure external diameter 5mm, internal diameter 2mm；Other end external diameter 0.5-2cm, internal diameter 0.3-2cm, closely
Internal whorl pitch 0.25-5mm at class piston structure end；Described class piston structure total length 5-21cm, one end length 5-20cm,
Diameter 0.5-2cm, pitch 0.25-5mm；Length 1cm of larger diameter end, diameter 0.5-2.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410531712.6A CN104208770B (en) | 2014-10-10 | 2014-10-10 | Tube sealing injection device avoiding venous indwelling needle blockage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410531712.6A CN104208770B (en) | 2014-10-10 | 2014-10-10 | Tube sealing injection device avoiding venous indwelling needle blockage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104208770A CN104208770A (en) | 2014-12-17 |
| CN104208770B true CN104208770B (en) | 2017-02-01 |
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| CN201410531712.6A Expired - Fee Related CN104208770B (en) | 2014-10-10 | 2014-10-10 | Tube sealing injection device avoiding venous indwelling needle blockage |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106039466A (en) * | 2016-06-24 | 2016-10-26 | 重庆科杰医疗设备有限公司 | Multiple-time positive pressure thrombus preventing venous indwelling needle and thrombus preventing method thereof |
| CN109481840A (en) * | 2018-12-21 | 2019-03-19 | 锦州诺德医疗器械科技有限公司 | A kind of calparine cap |
| CN110354363A (en) * | 2019-06-21 | 2019-10-22 | 广东省人民医院(广东省医学科学院) | A kind of eddy current type positive pressure wash syringe of controllable pulse frequency and flow |
| CN110496263A (en) * | 2019-08-29 | 2019-11-26 | 田亚明 | A kind of infusion apparatus with tube-sealing solution |
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| CN201022887Y (en) * | 2007-03-17 | 2008-02-20 | 马群山 | Screw propelling syringe |
| CN201253379Y (en) * | 2008-06-23 | 2009-06-10 | 胡化刚 | Vein indwelling path-way wash-pipe sealing device |
| CN102488939A (en) * | 2011-12-20 | 2012-06-13 | 天津市百利康泰生物技术有限公司 | Anticoagulation pipe sealing device of venous indwelling needle |
| CN203002574U (en) * | 2012-12-26 | 2013-06-19 | 杜风 | Precession injection type glue |
| CN204092710U (en) * | 2014-10-10 | 2015-01-14 | 胡晓予 | The tube sealing injection device avoiding venous detaining needle to block |
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2014
- 2014-10-10 CN CN201410531712.6A patent/CN104208770B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201022887Y (en) * | 2007-03-17 | 2008-02-20 | 马群山 | Screw propelling syringe |
| CN201253379Y (en) * | 2008-06-23 | 2009-06-10 | 胡化刚 | Vein indwelling path-way wash-pipe sealing device |
| CN102488939A (en) * | 2011-12-20 | 2012-06-13 | 天津市百利康泰生物技术有限公司 | Anticoagulation pipe sealing device of venous indwelling needle |
| CN203002574U (en) * | 2012-12-26 | 2013-06-19 | 杜风 | Precession injection type glue |
| CN204092710U (en) * | 2014-10-10 | 2015-01-14 | 胡晓予 | The tube sealing injection device avoiding venous detaining needle to block |
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| Publication number | Publication date |
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| CN104208770A (en) | 2014-12-17 |
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Effective date of registration: 20180522 Address after: 102300 301, 3 floor, 1 building, 7 Mei an road, Mentougou District, Beijing. Patentee after: Lang Sijia (Beijing) Medical Technology Development Co Ltd Address before: 100037 room three li 19-1002, Haidian District jade sea garden, Beijing Patentee before: Hu Xiaoyu |
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