CN204972522U - Continuous positive airway pressure prevents thrombus vein and keeps somewhere needle - Google Patents
Continuous positive airway pressure prevents thrombus vein and keeps somewhere needle Download PDFInfo
- Publication number
- CN204972522U CN204972522U CN201520591421.6U CN201520591421U CN204972522U CN 204972522 U CN204972522 U CN 204972522U CN 201520591421 U CN201520591421 U CN 201520591421U CN 204972522 U CN204972522 U CN 204972522U
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- CN
- China
- Prior art keywords
- continuous positive
- positive pressure
- input
- core rod
- sepage
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- Withdrawn - After Issue
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Abstract
The utility model provides a continuous positive airway pressure prevents thrombus vein and keeps somewhere needle, is provided with syringe needle, needle file, three way connection, transfer line, ends liquid clamp, sepage device and continuous positive airway pressure and supplies the liquid device, the sepage device assembles in the second input, and continuous positive airway pressure supplies the liquid device to assemble in three way connection's second input. The sepage device is provided with the pipe and assembles the sepage fibre post in the pipe. Continuous positive airway pressure supplies the liquid device to be provided with push rod, sleeve and spring, the push rod has the interior core bar that cup joints the link pack more than two sections, and a back inner core rod cover connects the outside of core bar in previous, the front end of the most anterior interior core bar is provided with the plug, and the end -to -end connection of the interior core bar at rear portion has the draw knob, and the push rod assembles in the sleeve, and the push rod is located to the spring housing, and the spring lies in between plug and the draw knob. This continuous positive airway pressure prevents thrombus vein and keeps somewhere needle can keep the long period to carry out the sepage transport, prevents vascular thrombosis.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of continuous positive pressure preventing thrombosis venous detaining needle.
Background technology
Transfusion device is one of conventional medical supplies of medical field intravenous injection.Along with the development of science and technology, venous detaining needle is due to can indwelling for a long time, and it uses for the patient needing continuous infusion, can exempt repeated localised puncture and cause blood vessel injury and psychic pain, alleviate the work load of medical personnel's venipuncture.In addition, venous detaining needle also has good, little to vascular stimulation, the little generation conduit discounting of pliability and catheter tip breakage etc. and has the function protecting blood vessel.
Venous detaining needle of the prior art, during indwelling, in order to prevent thrombosis from needing every several hours washing pipes once, not only increasing workload and the washing pipe expense of medical personnel, and there is the risk of thrombosis.
Therefore, not enough for prior art, provide a kind of continuous positive pressure preventing thrombosis venous detaining needle very necessary to overcome prior art deficiency.
Utility model content
One of the purpose of this utility model is avoid weak point of the prior art and provide a kind of continuous positive pressure preventing thrombosis venous detaining needle, this continuous positive pressure preventing thrombosis venous detaining needle can continue with penetration mode transfusion, the formation of thrombosis during preventing stopping infusion.
Above-mentioned purpose of the present utility model is realized by following technical measures.
A kind of continuous positive pressure preventing thrombosis venous detaining needle is provided, is provided with syringe needle, needle stand, three way cock, tube for transfusion, liquid stopping clamp, sepage device and continuous positive pressure liquid feed device;
Described syringe needle and described needle stand assemble, described three way cock is provided with first input end, the second input and outfan, tube for transfusion is connected with between the outfan of described three way cock and the input of described needle stand, described liquid stopping clamp is assemblied in described tube for transfusion, described sepage device is assemblied in described second input, and described continuous positive pressure liquid feed device is assemblied in second input of described three way cock.
Preferably, above-mentioned sepage device is provided with conduit and is assemblied in the sepage fibre columns in described conduit.
Preferably, the diameter of the above-mentioned fibre columns in conduit is 0.1-1mm.
Preferably, above-mentioned continuous positive pressure liquid feed device is provided with push rod, sleeve and spring;
Described push rod has two joints and is socketed the internal core rod be linked and packed above, a rear internal core rod is socketed on the outside of last internal core rod, the outside wall surface of the end of last internal core rod is provided with outer fin, the internal face of the front end of a rear internal core rod is provided with interior fin, and the interior fin of a rear internal core rod and the outer fin of last internal core rod match;
The front end of the internal core rod of forefront is provided with plug, and the end of aftermost internal core rod is connected with pull-button, and described pull-button has annulus, and the internal face of described annulus is provided with female thread;
Described push rod is assemblied in described sleeve, and described push rod is located at by described spring housing, and described spring is between described plug and pull-button;
The outside wall surface of described barrel end is provided with external screw thread, and described external screw thread and described female thread match.
Preferably, above-mentioned sleeve is also provided with button bit projection, and described button bit projection is fixed on described sleeve; The annulus of described pull-button is provided with the fitting recess mated with described button bit projection.
Preferably, above-mentioned internal core rod is set to pipe or square tube or rectangular tube.
Preferably, the inwall of second input of above-mentioned three way cock is provided with protruding annulus or semicircular ring, and described catheter cartridge is assigned in described annulus or semicircular ring position; Or
The aperture of second input of described three way cock is set to diminishing structure, the aperture 2-5mm less of the aperture of arrival end of the port of export of the second input.
Preferably, above-mentioned needle stand is provided with holds plate, described in hold plate and be fixed on described needle stand.
Preferably, above-mentioned three way cock is also provided with ribs, and the two ends of described ribs are individually fixed in first input end and the second input.
Preferably, the first input end of above-mentioned three way cock is provided with calparine cap, and described syringe needle is also provided with rabbet groove.
Continuous positive pressure preventing thrombosis venous detaining needle of the present utility model, is provided with syringe needle, needle stand, three way cock, tube for transfusion, liquid stopping clamp, sepage device and continuous positive pressure liquid feed device; Described syringe needle and described needle stand assemble, described three way cock is provided with first input end, the second input and outfan, tube for transfusion is connected with between the outfan of described three way cock and the input of described needle stand, described liquid stopping clamp is assemblied in described tube for transfusion, described sepage device is assemblied in described second input, and described continuous positive pressure liquid feed device is assemblied in second input of described three way cock.This continuous positive pressure preventing thrombosis venous detaining needle, owing to being provided with sepage device and continuous positive pressure liquid feed device, after stopping infusion, by continuing liquid feed device, the medicinal liquid in it can be delivered to blood vessel through sepage device, the long period can be kept to carry out sepage conveying, prevent the formation of vascular thrombosis, avoid medical personnel to need to bother the work of venous detaining needle washing pipe in certain intervals, reduce the expense of patient's washing pipe.
Accompanying drawing explanation
The utility model is described in further detail to utilize accompanying drawing, but the content in accompanying drawing is not formed any restriction of the present utility model.
Fig. 1 is the structural representation of a kind of continuous positive pressure preventing thrombosis venous detaining needle embodiment 1 of the present utility model.
Fig. 2 is the decomposition texture schematic diagram of Fig. 1.
Fig. 3 is the sectional view of continuous positive pressure liquid feed device in Fig. 1 and three way cock's part.
Structural representation when Fig. 4 is the continuous positive pressure liquid feed device imbibition state in Fig. 1.
Fig. 5 is the decomposition texture schematic diagram of Fig. 4.
Fig. 6 is the sectional view of Fig. 4.
In Fig. 1 to Fig. 6, include:
Syringe needle 100,
Rabbet groove 110,
Needle stand 200,
Hold plate 210,
Three way cock 300,
First input end 310, second input 320, outfan 330,
Calparine cap 340, ribs 350,
Tube for transfusion 400, liquid stopping clamp 410,
Sepage device 500,
Conduit 510, sepage fibre columns 520,
Continuous positive pressure liquid feed device 600,
Push rod 610,
Internal core rod 611,
Last internal core rod 601, outer fin 602,
A rear internal core rod 603, interior fin 604,
Plug 612, pull-button 613, annulus 614,
The female thread 615 that annulus is arranged,
Sleeve 620, button bit projection 621,
Spring 700.
Detailed description of the invention
With the following Examples this utility model is further described.
embodiment 1.
A kind of continuous positive pressure preventing thrombosis venous detaining needle, as shown in Figure 1, Figure 2, Figure 3 shows, is provided with syringe needle 100, needle stand 200, three way cock 300, tube for transfusion 400, liquid stopping clamp 410, sepage device 500 and continuous positive pressure liquid feed device 600.
Syringe needle 100 and needle stand 200 assemble, three way cock 300 is provided with first input end 310, second input 320 and outfan 330, tube for transfusion 400 is connected with between the outfan 330 of three way cock 300 and the input of needle stand 200, liquid stopping clamp 410 is assemblied in tube for transfusion 400, sepage device 500 is assemblied in the second input 320, and continuous positive pressure liquid feed device 600 is assemblied in second input 320 of three way cock 300.
Three way cock 300 is also provided with ribs 350, and the two ends of ribs 350 are individually fixed in first input end 310 and the second input 320, and by ribs 350, three way cock 300 is more firm.
The first input end 310 of three way cock 300 is equipped with calparine cap 340, and this calparine cap 340 is demountable structure.When having pin to infuse, directly insert calparine cap 340 and infuse.When no-needle transfusion, calparine cap 340 is taken off, transfusion end is assemblied in first input end 310.The setting of calparine cap 340 demountable structure, easy to use and flexible.
For the ease of puncture, needle stand 200 is provided with holds plate 210, holds plate 210 and is fixed on needle stand 200.During puncture, medical personnel can hold plate 210 and puncture, and puncture is convenient stable.Syringe needle 100 is also provided with rabbet groove 110, can sensitive blood-return.
Concrete, the sepage fibre columns 520 that sepage device 500 is provided with conduit 510 and is assemblied in conduit 510, the diameter of fibre columns is 0.1-1mm.Conduit 510 and built-in fibre columns adopt direct extrusion molding to be prepared from, and production and processing technology is simple.Sepage fibre columns 520 slowly can carry out micro liquid infiltration at positive pressure, and sepage fibre columns 520 can be the fibre columns of cotton thread or other material being permeable.Sepage device 500 entirety is inserted in second input 320 of three way cock 300, does not need to be bondd by glue, has feature easy to assembly.
Concrete, the inwall of second input 320 of three way cock 300 is provided with protruding annulus or semicircular ring, conduit 510 is assemblied in annulus or semicircular ring position, realizes conduit 510 clamping to be seal-installed on the second input 320 by annulus or semicircular ring.During assembling, as long as it is tight sepage device to be directly pressed into extruding, do not need glue to bond, assembly technology is simple.It should be noted that, the quantity of annulus or semicircular ring can be set to two or other quantity, with two the bests, can realize sealing assembling effect, have again feature easy to prepare.
Continuous positive pressure liquid feed device 600 is provided with push rod 610, sleeve 620 and spring 700.In the present embodiment, being relative front with the position at the imbibition end place of lasting liquid feed device sleeve 620, is that relative rear is described with the locality at push rod 610 place.Push rod 610 has two joints and is socketed the internal core rod 611 be linked and packed above, a rear internal core rod is socketed on the outside of last internal core rod, the outside wall surface of the end of last internal core rod is provided with outer fin 602, the internal face of the front end of a rear internal core rod is provided with interior fin 604, and the interior fin 604 of a rear internal core rod matches with the outer fin 602 of last internal core rod.
The front end of the internal core rod of forefront is provided with plug 612, and the end of aftermost internal core rod is connected with pull-button 613, and pull-button 613 has annulus 614, and the internal face of annulus 614 is provided with female thread 615.
Push rod 610 is assemblied in sleeve 620, and spring 700 is sheathed on push rod 610, and spring 700 is between plug 612 and pull-button 613.
In the present embodiment, as shown in Figures 4 to 6, push rod 610 is provided with two joint internal core rod 611.When pulling back push rod 610, a rear core bar slides backward along the outside wall surface of last core bar, when in the front inner wall face of an internal core rod 603 after arrival of sliding is arranged, fin 604 abuts with the outer fin 602 that last internal core rod 601 end outside wall surface is arranged, interior fin 604 blocks by outer fin 602, and a rear internal core rod 603 will pull last core bar entirety to move backward.In two, front and back core bar entirety backward moving process, the liquid sucting port that sleeve 620 front end is arranged starts liquid to suck in sleeve 620.When driven forward push rod 610, a rear internal core rod 603 first moves along the outside wall surface of last internal core rod 601 towards the front end of last internal core rod 601, when the front end of a rear internal core rod 603 is connected to the plug 612 of last internal core rod 601 front end setting, former and later two core bars are communicated with plug 612 entirety and move towards the liquid sucting port direction of sleeve 620, realize the liquid in sleeve 620 to push out.
In the present embodiment, internal core rod 611 is set to circular tube shaped, it should be noted that, also can be set to square tube or rectangular tube.Internal core rod can the person of being set to two save more than, be not limited to two joints in the present embodiment.
Sleeve 620 is also provided with button bit projection 621, and button bit projection 621 is fixed on sleeve 620, and the annulus 614 of pull-button 613 is provided with the fitting recess mated with button bit projection 621.
When after depressing pull-button 613 and making, a core bar moves a segment distance, when making button bit projection 621 be fixed on fitting recess, realize fixing between pull-button 613 and sleeve 620 forward.
This continuous positive pressure preventing thrombosis venous detaining needle, when infuse before or transfusion time or stopping infusion time, continuous positive pressure liquid feed device 600 sucked liquid or suck liquid in advance.The process that continuous positive pressure liquid feed device 600 sucks liquid is such: pull pull-button 613 towards the rear, after pull-button 613 drives, a core bar moves after last core bar outside wall surface, when in a rear core bar, fin 604 abuts outer fin 602 position of last core bar rear end, former and later two core bar entirety start mobile backwards, drive the plug 612 of last core bar front end also to move backward simultaneously, in the process of plug 612 movement backwards, liquid is entered in sleeve 620 by the liquid sucting port of sleeve 620 front end.When the liquid in sleeve 620 reaches requirement, the liquid sucting port end of sleeve 620 is assemblied in second input 320 of three way cock 300, then driven forward pull-button 613, when pull-button 613 annulus 614 abuts to the end of sleeve 620, pressing pull-button 613 makes groove and button bit projection 621 assemble, and realizes the fixing of pull-button 613 and sleeve 620.
Now, spring 700 is in squeezed state between pull-button 613 and plug 612, and under the effect of spring 700 restoring force, promotion plug 612 moves by spring 700 forward, is slowly extruded by the liquid in sleeve pipe.Because sleeve 620 is communicated with second input 320 of three way cock 300, the slow sepage structure that the second input 320 mounted inside has conduit 510 and sepage fibre columns 520 to form, liquid can not pass through the second input 320 rapidly.When whole system realizes dynamic equilibrium, liquid is slowly extruded into sepage fibre columns 520 place by spring 700 under faint restoring force, liquid passes slowly sepage fibre columns 520 and infiltrates and be delivered to conduit 510, syringe needle 100 from the outfan 330 of three way cock 300, is finally delivered to blood vessel by syringe needle 100.
Practice finds, the continuous positive pressure liquid feed device of a pipe 1mL capacity, can continue feed flow more than 24 hours, effectively can prevent the formation of venous detaining needle thrombosis when stopping infusion state.And do not need medical personnel to carry out washing pipe according to certain hour interval, greatly reduce the workload of medical personnel, reduce the washing pipe expense of patient.
This continuous positive pressure preventing thrombosis venous detaining needle, after puncture indwelling, can infusing in needleless mode, also can infuse by having pin mode, corresponding dismounting or assembling calparine cap 340.Before infusion process or in transfusion or after transfusion; continuous positive pressure liquid feed device 600 is installed on the second input 320; after continuous positive pressure liquid feed device 600 connects; pull-button 613 is pressed into and is rotated clamping; can continuous liquid supply 24 hours more than keep being barotropic state after continuous positive pressure liquid feed device 600 connects, thus real effectively preventing forms thrombosis, thus protect patient; also mitigate the workload of nurse, avoid repeatedly the trouble of washing pipe.
This continuous positive pressure preventing thrombosis venous detaining needle, when not needing assembling continuous positive pressure liquid feed device 600, can be placed on second input 320 of three way cock 300 by a cap.
In addition, the continuous positive pressure preventing thrombosis venous indwelling needle construction of the present embodiment is simple, with low cost, the feature of use safety.
embodiment 2.
A kind of continuous positive pressure preventing thrombosis venous detaining needle, other structure is identical with embodiment 1, and difference is: the outside wall surface of barrel end is provided with external screw thread, and external screw thread and female thread match.When a core bar moves a segment distance forward after depressing pull-button and making, rotate pull-button and the female thread of annulus is coordinated with the external screw thread of barrel end outside wall surface, and when making button bit projection be fixed on fitting recess, realize fixing between pull-button and sleeve.The assembling of this fixed form is more firm.
embodiment 3.
A kind of continuous positive pressure preventing thrombosis venous detaining needle, other structure is identical with embodiment 1 or 2, difference is: the aperture of second input of three way cock is set to diminishing structure, the aperture 2-5mm less of the aperture of arrival end of the port of export of the second input.This vibrational power flow, be convenient to assembling sepage device, and in use, sepage device uses more firm.
Finally should be noted that; the restriction of above embodiment only for illustration of the technical solution of the utility model but not to this utility model protection domain; although be explained in detail this utility model with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical solution of the utility model or equivalent replacement, and not depart from essence and the scope of technical solutions of the utility model.
Claims (10)
1. a continuous positive pressure preventing thrombosis venous detaining needle, is characterized in that: be provided with syringe needle, needle stand, three way cock, tube for transfusion, liquid stopping clamp, sepage device and continuous positive pressure liquid feed device;
Described syringe needle and described needle stand assemble, described three way cock is provided with first input end, the second input and outfan, tube for transfusion is connected with between the outfan of described three way cock and the input of described needle stand, described liquid stopping clamp is assemblied in described tube for transfusion, described sepage device is assemblied in described second input, and described continuous positive pressure liquid feed device is assemblied in second input of described three way cock.
2. continuous positive pressure preventing thrombosis venous detaining needle according to claim 1, is characterized in that: described sepage device is provided with conduit and is assemblied in the sepage fibre columns in described conduit.
3. continuous positive pressure preventing thrombosis venous detaining needle according to claim 2, is characterized in that: the diameter of described fibre columns is 0.1-1mm.
4. continuous positive pressure preventing thrombosis venous detaining needle according to claim 3, is characterized in that:
Described continuous positive pressure liquid feed device is provided with push rod, sleeve and spring;
Described push rod has two joints and is socketed the internal core rod be linked and packed above, a rear internal core rod is socketed on the outside of last internal core rod, the outside wall surface of the end of last internal core rod is provided with outer fin, the internal face of the front end of a rear internal core rod is provided with interior fin, and the interior fin of a rear internal core rod and the outer fin of last internal core rod match;
The front end of the internal core rod of forefront is provided with plug, and the end of aftermost internal core rod is connected with pull-button, and described pull-button has annulus, and the internal face of described annulus is provided with female thread;
Described push rod is assemblied in described sleeve, and described push rod is located at by described spring housing, and described spring is between described plug and pull-button.
5. continuous positive pressure preventing thrombosis venous detaining needle according to claim 4, is characterized in that: the outside wall surface of described barrel end is provided with external screw thread, and described external screw thread and described female thread match.
6. the continuous positive pressure preventing thrombosis venous detaining needle according to claim 4 or 5, is characterized in that: described sleeve is also provided with button bit projection, described button bit projection is fixed on described sleeve; The annulus of described pull-button is provided with the fitting recess mated with described button bit projection.
7. continuous positive pressure preventing thrombosis venous detaining needle according to claim 6, is characterized in that: described internal core rod is set to pipe or square tube or rectangular tube.
8. continuous positive pressure preventing thrombosis venous detaining needle according to claim 7, is characterized in that:
The inwall of second input of described three way cock is provided with protruding annulus or semicircular ring, and described catheter cartridge is assigned in described annulus or semicircular ring position; Or
The aperture of second input of described three way cock is set to diminishing structure, the aperture 2-5mm less of the aperture of arrival end of the port of export of the second input.
9. continuous positive pressure preventing thrombosis venous detaining needle according to claim 7, is characterized in that: described needle stand is provided with holds plate, described in hold plate and be fixed on described needle stand.
10. continuous positive pressure preventing thrombosis venous detaining needle according to claim 8, is characterized in that: described three way cock is also provided with ribs, and the two ends of described ribs are individually fixed in first input end and the second input; The first input end of described three way cock is provided with calparine cap, and described syringe needle is also provided with rabbet groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520591421.6U CN204972522U (en) | 2015-08-09 | 2015-08-09 | Continuous positive airway pressure prevents thrombus vein and keeps somewhere needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520591421.6U CN204972522U (en) | 2015-08-09 | 2015-08-09 | Continuous positive airway pressure prevents thrombus vein and keeps somewhere needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204972522U true CN204972522U (en) | 2016-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520591421.6U Withdrawn - After Issue CN204972522U (en) | 2015-08-09 | 2015-08-09 | Continuous positive airway pressure prevents thrombus vein and keeps somewhere needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204972522U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105169523A (en) * | 2015-08-09 | 2015-12-23 | 梁燕青 | Continuous positive-pressure thrombus-preventive venous indwelling needle |
| CN110975061A (en) * | 2019-11-19 | 2020-04-10 | 王君霞 | Puncture-preventing remaining needle capable of continuously supplying liquid |
-
2015
- 2015-08-09 CN CN201520591421.6U patent/CN204972522U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105169523A (en) * | 2015-08-09 | 2015-12-23 | 梁燕青 | Continuous positive-pressure thrombus-preventive venous indwelling needle |
| CN105169523B (en) * | 2015-08-09 | 2018-07-17 | 梁燕青 | A kind of continuous positive pressure preventing thrombosis venous detaining needle |
| CN110975061A (en) * | 2019-11-19 | 2020-04-10 | 王君霞 | Puncture-preventing remaining needle capable of continuously supplying liquid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160120 Effective date of abandoning: 20180717 |