CN103157153A - Safe venous indwelling needle used for preventing thrombus - Google Patents
Safe venous indwelling needle used for preventing thrombus Download PDFInfo
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- CN103157153A CN103157153A CN2011104330806A CN201110433080A CN103157153A CN 103157153 A CN103157153 A CN 103157153A CN 2011104330806 A CN2011104330806 A CN 2011104330806A CN 201110433080 A CN201110433080 A CN 201110433080A CN 103157153 A CN103157153 A CN 103157153A
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- transfusion
- needle
- labelling
- thrombus
- closing member
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Abstract
The invention relates to the field of medical apparatus and instruments and provides a safe venous indwelling needle used for preventing thrombus. The venous indwelling needle in the prior art can cause blood return when transfusion is suspended, thrombus is formed on the tail end of the indwelling needle leading to blocking, the thrombus can caused phlebitis and when the needle is withdrawn, the needle can puncture working people easily. The safe venous indwelling needle used for preventing the thrombus is characterized in that the needle is in a sleeve tube from beginning to end, the tail end of the sleeve tube refers to a closed section and other parts are a transfusion section. In transfusion, the tail end of the needle is inserted inside the transfusion section, when the transfusion is suspended, the tail end of the needle is pushed towards the closed section, and blood-returning hole is located inside a sealing plug so as to enable the blood not to enter the sleeve tube to form the thrombus. When the transfusion is stopped, the indwelling needle still remains in the sleeve tube so the people can not be punctured. The safe venous indwelling needle has the advantages of being safe and preventing thrombus.
Description
Technical field
The present invention relates to the category of medical apparatus and instruments, is a kind of preventing thrombosis high-safety needle staying on vein.
Technical background
Existing venoclysis needle is easily stabbed blood vessel in infusion process, must change every day.The invention of venous detaining needle and application have overcome these shortcomings, nook closing member must be extracted out after completing venipuncture during use, stay sleeve pipe, thus can injured blood vessel, can stay in blood vessel continuously with several days.
But existing venous detaining needle will produce the blood back phenomenon in case transfusion suspends, and forms thrombosis at the end of sleeve pipe and results in blockage.Even pressurization is washed open, thrombosis also can stop up blood capillary, produces vasculitis.And easily stab the staff when extracting nook closing member out, very dangerous.For addressing these problems, the envelope pin liquid that patent in recent years and product utilization anticoagulant are made or with the method for pressurization though can alleviate and delay the formation of thrombosis, forms thrombosis after can't preventing from suspending transfusion fully.
Summary of the invention
The object of the present invention is to provide a kind of improved preventing thrombosis high-safety needle staying on vein, during transfusion, the Needles core is stayed in sleeve pipe all the time, utilize original nook closing member closed casing when suspending transfusion, medicinal liquid and blood are isolated, can effectively prevent from forming thrombosis, and nook closing member is stayed and can not stabbed the staff in sleeve pipe and reach safe effect.
The object of the present invention is achieved like this: the blood back hole of nook closing member is near sealing-plug, and the distance of it and sealing-plug is equal to or less than 2mm.The sleeve pipe end has the closed section of 5-10mm, and all the other are the transfusion section.The internal diameter of closed section sleeve pipe is equivalent to the external diameter of nook closing member, makes nook closing member energy closed casing.The internal diameter of transfusion section sleeve pipe can circulate medicinal liquid than the minimum large 0.05mm of the external diameter of nook closing member between sleeve pipe and nook closing member.Casing seat is provided with the baseline labelling, bright transfusion labelling and the tube sealing labelling of being provided with of pin.After during operation, indwelling Needles penetrates into blood vessel, blood goes out through the blood back orifice flow, and it is overlapping that pull back with the Needles handle transfusion labelling and the casing seat baseline labelling that make needle handle this moment.Needles core end is in sleeve pipe transfusion section at this moment, and sleeve pipe is unimpeded just can normal infusion.When suspending transfusion, needle handle pushes away forward, make the bright tube sealing labelling of pin and casing seat baseline labelling overlapping, this moment nook closing member end and needle point all in the sleeve closure section with sleeve closure, the blood back hole is also in sealing-plug, can not form thrombosis so blood can not enter sleeve pipe, needle point can not stabbed blood vessel yet.When continuing transfusion again with needle handle backward rubbish overlapping can the continuation of transfusion labelling and baseline labelling infused.When all stopping transfusion, remaining needle is transferred to, nook closing member is stayed all the time and is not stabbed the staff in sleeve pipe.So this remaining needle does not only form thrombosis and prevents from stopping up and safety.
The present invention only needs to move on near sealing-plug in the blood back hole of original remaining needle nook closing member, and original cannula end is set to closed section, and all the other are the transfusion section.During transfusion, the nook closing member end is in the transfusion section, and when suspending transfusion, the nook closing member end is in closed section.Easy enforcement simple in structure.
Description of drawings
The concrete structure of invention is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the profile of the preventing thrombosis high-safety needle staying on vein of proposition according to the present invention.The profile of preventing thrombosis high-safety needle staying on vein when Fig. 2 is transfusion.Fig. 3 is the profile of preventing thrombosis high-safety needle staying on vein when suspending transfusion.
The specific embodiment
Describe details and the working condition of the concrete device that proposes according to the present invention in detail below in conjunction with Fig. 1, Fig. 2, Fig. 3.
The preventing thrombosis high-safety needle staying on vein comprises a main casing body (1), is nook closing member (2) in sleeve pipe, and it has a blood back hole (4) near sealing-plug (3), and cannula end is closed section (5), and the other end is transfusion section (6).
To scheme as example, at first carry out venipuncture with preventing thrombosis high-safety needle staying on vein (Fig. 1) during operation, after blood flows into casing seat (7) from blood back hole (4), needle handle (8) is pulled back the baseline labelling (10) overlapping (Fig. 2) of the transfusion labelling (9) that makes needle handle (8) and casing seat (7), blood back hole this moment (4) in sealing-plug (3), the end of nook closing member (2) is in the transfusion section (6) of sleeve pipe.Medicinal liquid flows into blood vessel through ductule (11) inflow sleeve pipe (1) again and infuses.When suspending transfusion, needle handle is pushed away forward make sealing labelling (12) and baseline labelling (10) overlapping (Fig. 3), blood back hole this moment (4) in sealing-plug (3), the end of nook closing member (2) is in closed section (5), blood can't enter that sleeve pipe (1) medicinal liquid and blood are fully isolated prevents from forming thrombosis like this, reaches the blockage resisting effect.If continue transfusion with overlapping the getting final product of baseline labelling (10) of transfusion labelling (9) Yu the casing seat of pin bright (8).When stopping transfusion fully, sleeve pipe (1) and nook closing member (2) are transferred to together.After beginning transfusion until stop the needle point of transfusion nook closing member (2) fully and can not stab all the time patient's blood vessel also can not stab the staff in sleeve pipe (1).So this remaining needle not only can preventing thrombosis without stopping up and safety.
Claims (3)
1. one kind by ductule, nook closing member, pin is bright, the preventing thrombosis safety indwelling needle that sealing-plug and sleeve pipe form, nook closing member when it is characterized in that work (2) is retained in sleeve pipe (1) all the time, casing seat (1) has baseline labelling (10), needle handle has tube sealing labelling (12) and transfusion labelling (9), the end of sleeve pipe is blind end (5), the other end is transfusion end (6), the interior diameter of sleeve pipe transfusion end is than the minimum large 0.05mm of the overall diameter of nook closing member, the blood back hole (4) of nook closing member is equal to or less than 2mm with the distance of sealing-plug (3).
2. preventing thrombosis high-safety needle staying on vein according to claim 1, it is characterized in that should be overlapping with the baseline labelling (10) of casing seat (7) at the transfusion labelling (9) of transfusion hour hands bright (8), and when suspending transfusion, tube sealing labelling (12) should be overlapping with baseline labelling (10).
3. preventing thrombosis high-safety needle staying on vein according to claim 1, when it is characterized in that transfusion and suspending transfusion, blood back hole (4) are all in sealing-plug (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104330806A CN103157153A (en) | 2011-12-15 | 2011-12-15 | Safe venous indwelling needle used for preventing thrombus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104330806A CN103157153A (en) | 2011-12-15 | 2011-12-15 | Safe venous indwelling needle used for preventing thrombus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103157153A true CN103157153A (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104330806A Pending CN103157153A (en) | 2011-12-15 | 2011-12-15 | Safe venous indwelling needle used for preventing thrombus |
Country Status (1)
| Country | Link |
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| CN (1) | CN103157153A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107789701A (en) * | 2016-08-31 | 2018-03-13 | 邹最 | A kind of safety-type medical trocar with multichannel infusion channel |
| CN109550109A (en) * | 2017-09-26 | 2019-04-02 | 山东省肿瘤防治研究院 | A kind of venous detaining needle with thread gluing |
Citations (7)
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|---|---|---|---|---|
| JP2005323762A (en) * | 2004-05-13 | 2005-11-24 | Medikit Kk | Indwelling needle |
| CN2764412Y (en) * | 2005-02-25 | 2006-03-15 | 李�浩 | Venous indwelling needle for preventing blood refluence |
| US20080167623A1 (en) * | 2007-01-05 | 2008-07-10 | Yosiharu Iwase | Indwelling needle |
| CN201182826Y (en) * | 2007-12-10 | 2009-01-21 | 张亚根 | H type safe artery and vein lien needle with non-needle connector positive-pressure enclosed valve |
| CN201257220Y (en) * | 2008-08-28 | 2009-06-17 | 江西三鑫医疗器械集团有限公司 | Back flow prevention retention needle |
| JP2009233007A (en) * | 2008-03-26 | 2009-10-15 | Terumo Corp | Indwelling needle |
| CN101947337A (en) * | 2010-09-08 | 2011-01-19 | 陈永曦 | Closed type detaining needle catheter assembly |
-
2011
- 2011-12-15 CN CN2011104330806A patent/CN103157153A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005323762A (en) * | 2004-05-13 | 2005-11-24 | Medikit Kk | Indwelling needle |
| CN2764412Y (en) * | 2005-02-25 | 2006-03-15 | 李�浩 | Venous indwelling needle for preventing blood refluence |
| US20080167623A1 (en) * | 2007-01-05 | 2008-07-10 | Yosiharu Iwase | Indwelling needle |
| CN201182826Y (en) * | 2007-12-10 | 2009-01-21 | 张亚根 | H type safe artery and vein lien needle with non-needle connector positive-pressure enclosed valve |
| JP2009233007A (en) * | 2008-03-26 | 2009-10-15 | Terumo Corp | Indwelling needle |
| CN201257220Y (en) * | 2008-08-28 | 2009-06-17 | 江西三鑫医疗器械集团有限公司 | Back flow prevention retention needle |
| CN101947337A (en) * | 2010-09-08 | 2011-01-19 | 陈永曦 | Closed type detaining needle catheter assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107789701A (en) * | 2016-08-31 | 2018-03-13 | 邹最 | A kind of safety-type medical trocar with multichannel infusion channel |
| CN109550109A (en) * | 2017-09-26 | 2019-04-02 | 山东省肿瘤防治研究院 | A kind of venous detaining needle with thread gluing |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130619 |