CN102485285A - Thrombosis prevention device of venous indwelling needle - Google Patents
Thrombosis prevention device of venous indwelling needle Download PDFInfo
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- CN102485285A CN102485285A CN2010105823365A CN201010582336A CN102485285A CN 102485285 A CN102485285 A CN 102485285A CN 2010105823365 A CN2010105823365 A CN 2010105823365A CN 201010582336 A CN201010582336 A CN 201010582336A CN 102485285 A CN102485285 A CN 102485285A
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- piston
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- thrombosis prevention
- transfusion
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Abstract
The invention relates to the field of medical appliances, and in particular relates to a thrombosis prevention device of a venous indwelling needle. The thrombosis prevention device is composed of a sleeve seat, a sleeve, a piston, a pushing pipe and a needle core and is characterized in that the piston is arranged in the sleeve seat, the piston is fixed at the end of the pushing pipe, and the needle core is located in the pushing pipe and is sleeved in the sleeve after penetrating through the piston. Transfusion can be carried out after venous puncture and needle core pulling-out according to the normal operation. When the transfusion is paused and the pipe is sealed, the piston is pushed forward and seals the water inflow hole of the sleeve. When the transfusion is continued, the piston is pulled backward. The thrombosis prevention device provided by the invention is simple to operate, and has double thrombosis prevention functions of positive pressure and blood backflow sealing and preventing.
Description
Technical field
The present invention relates to the category of medical apparatus and instruments, is a kind of preventing thrombosis device of venous detaining needle.
Background technology
Existing venoclysis needle is prone to piercing blood vessel in infusion process, must change every day.The invention of venous detaining needle and application have overcome these shortcomings, need nook closing member is extracted out after accomplishing venipuncture during use, stay sleeve pipe, thus can injured blood vessel, can stay in the blood vessel continuously with several days.
But existing venous detaining needle will produce the blood back phenomenon in case transfusion suspends, and results in blockage at the telescopic terminal thrombosis that forms.Even pressurization is washed open, thrombosis also can stop up blood capillary, produces vasculitis.For addressing these problems, the envelope pin liquid that patent in recent years and product utilization anticoagulant are made or with the method for malleation though alleviate and delay the formation of thrombosis, can't prevent to suspend the thrombosis that the transfusion back forms fully.Have a kind of check valve principle of utilizing to prevent the blood back flow preventing thrombosis, some effect complex process performances are unreliable to be difficult to pile wide application though have.
Summary of the invention
The object of the present invention is to provide a kind of preventing thrombosis device of venous detaining needle, piston forward pushes away to make and produces malleation and closed casing in the sleeve pipe when suspending transfusion, and the method that refluxes with dual prevention blood can more effectively prevent to produce thrombosis.
The objective of the invention is to realize like this: in existing venous detaining needle casing seat, establish a piston and be fixed on the end of ejector sleeve, ejector sleeve is a hollow pipe.The nook closing member of remaining needle passes from piston in ejector sleeve, gets in the sleeve pipe again.Extract nook closing member when infusing after the operating routine completion venipuncture by existing remaining needle during operation, piston will be extracted the position sealing of nook closing member automatically, and medicinal liquid can not spill when guaranteeing to infuse.When suspending the transfusion tube sealing, piston forward is pushed away the blasthole that medicinal liquid is produced closed casing in the malleation in sleeve pipe, make to produce malleation in the sleeve pipe and sealing reaches the effect of prevention blood backflow preventing thrombosis with ejector sleeve.Piston is drawn back when needing to continue transfusion, and telescopic blasthole was opened and carried out normal infusion this moment, and this venous detaining needle method for using and existing remaining needle are identical, only needs during tube sealing to push away piston forward.Be that the malleation tube sealing stops blood back with the sealing of sleeve pipe blasthole again during tube sealing, dual prevention blood backflow preventing thrombosis effect is more reliable.
The present invention only needs in the casing seat of existing venous detaining needle, piston to be set, and piston is fixed in the ejector sleeve end, and nook closing member is in ejector sleeve and pass piston, only needs during tube sealing to push away piston forward, and is easy to operate, simple in structure, implements easily.
Description of drawings
The concrete structure of invention is drawn by following embodiment and accompanying drawing thereof.
Fig. 1 is the profile of the preventing thrombosis device of the venous detaining needle of proposition according to the present invention.The profile of the preventing thrombosis device of venous detaining needle when Fig. 2 is tube sealing.
The specific embodiment
Specify details and the working condition that proposes concrete device according to the present invention below in conjunction with Fig. 1, Fig. 2.
The preventing thrombosis device of venous detaining needle comprises a main casing body seat (1), and a closing cock (8) and a piston (2) are arranged in the main body, and piston is fixed in the end of ejector sleeve (3), and nook closing member (4) passes from piston (2) in ejector sleeve (3).
To scheme is example, extracts nook closing member (4) after the completion venipuncture during operation, and sleeve pipe (5) is stayed intravenous and can be infused by routine.Medicinal liquid flows in the casing seat (1) from ductule (7), and closing cock (8) stops medicine to flow out backward and can only flow into blood vessel through sleeve pipe (5) forward night.Transfusion suspends when carrying out tube sealing, shifts piston (2) end of onto blasthole (6) sealing with sleeve pipe (5) with ejector sleeve (3).Piston is drawn back when proceeding to infuse, and produces negative pressure in the sleeve pipe (5), and the blasthole that is closed (6) is opened and can be seen blood back and can infuse.Because piston (2) pushes away forward to make and produces malleation in the sleeve pipe (5) during tube sealing.Piston (2) stops blood backflow sleeve pipe (5) with blasthole (6) sealing again, and two kinds of preventing thrombosis measures of malleation and sealing are arranged simultaneously, and effect is more reliable.
Claims (2)
1. the preventing thrombosis device of a venous detaining needle of forming by sleeve pipe, casing seat, piston, ejector sleeve, sealing-plug, nook closing member; It is characterized in that having in the casing seat (1) piston (2) to be fixed in the end of ejector sleeve (3), nook closing member (4) passes from piston (2) in ejector sleeve (3) and is enclosed within the sleeve pipe (5).
2. the preventing thrombosis device of venous detaining needle according to claim 1 is characterized in that ejector sleeve (3) is a hollow pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010582336.5A CN102485285B (en) | 2010-12-03 | 2010-12-03 | The thrombosis prevention device of venous detaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010582336.5A CN102485285B (en) | 2010-12-03 | 2010-12-03 | The thrombosis prevention device of venous detaining needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102485285A true CN102485285A (en) | 2012-06-06 |
| CN102485285B CN102485285B (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010582336.5A Active CN102485285B (en) | 2010-12-03 | 2010-12-03 | The thrombosis prevention device of venous detaining needle |
Country Status (1)
| Country | Link |
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| CN (1) | CN102485285B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103877637A (en) * | 2014-02-19 | 2014-06-25 | 浙江大学 | Disposable passive intravenous infusion apparatus with multi-bag continuous injection pause function |
| CN104998335A (en) * | 2015-07-23 | 2015-10-28 | 中国人民解放军第四军医大学 | PICC thrombolysis apparatus |
| CN105214167A (en) * | 2015-10-23 | 2016-01-06 | 谢世庚 | The method of pressure-fired remaining needle and generation pressure-fired preventing thrombosis thereof |
| CN105251081A (en) * | 2015-11-18 | 2016-01-20 | 谢世庚 | Positive pressure cavity type remaining needle and method of preventing thrombi through positive pressure cavity type remaining needle |
| CN108578826A (en) * | 2018-05-16 | 2018-09-28 | 曾凡洪 | A kind of anti-blood back venous detaining needle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003175112A (en) * | 2001-10-02 | 2003-06-24 | Mitsubishi Pencil Co Ltd | Indwelling needle structure |
| CN2922935Y (en) * | 2006-01-06 | 2007-07-18 | 威海洁瑞医用制品有限公司 | Straight type closed vein retaining needle |
| CN101337105A (en) * | 2008-08-11 | 2009-01-07 | 张亚根 | I-form arteriovenous indwelling needle with positive pressure function |
| JP2009233007A (en) * | 2008-03-26 | 2009-10-15 | Terumo Corp | Indwelling needle |
| CN201871054U (en) * | 2010-12-03 | 2011-06-22 | 谢世庚 | Thrombus prevention device for venous indwelling needle |
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2010
- 2010-12-03 CN CN201010582336.5A patent/CN102485285B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003175112A (en) * | 2001-10-02 | 2003-06-24 | Mitsubishi Pencil Co Ltd | Indwelling needle structure |
| CN2922935Y (en) * | 2006-01-06 | 2007-07-18 | 威海洁瑞医用制品有限公司 | Straight type closed vein retaining needle |
| JP2009233007A (en) * | 2008-03-26 | 2009-10-15 | Terumo Corp | Indwelling needle |
| CN101337105A (en) * | 2008-08-11 | 2009-01-07 | 张亚根 | I-form arteriovenous indwelling needle with positive pressure function |
| CN201871054U (en) * | 2010-12-03 | 2011-06-22 | 谢世庚 | Thrombus prevention device for venous indwelling needle |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103877637A (en) * | 2014-02-19 | 2014-06-25 | 浙江大学 | Disposable passive intravenous infusion apparatus with multi-bag continuous injection pause function |
| CN103877637B (en) * | 2014-02-19 | 2016-03-30 | 浙江大学 | Suspendable disposable passive intravenous transfusion device is beaten by many bags of companies |
| CN104998335A (en) * | 2015-07-23 | 2015-10-28 | 中国人民解放军第四军医大学 | PICC thrombolysis apparatus |
| CN105214167A (en) * | 2015-10-23 | 2016-01-06 | 谢世庚 | The method of pressure-fired remaining needle and generation pressure-fired preventing thrombosis thereof |
| CN105214167B (en) * | 2015-10-23 | 2018-10-02 | 谢世庚 | Micro-positive pressure remaining needle |
| CN105251081A (en) * | 2015-11-18 | 2016-01-20 | 谢世庚 | Positive pressure cavity type remaining needle and method of preventing thrombi through positive pressure cavity type remaining needle |
| CN108578826A (en) * | 2018-05-16 | 2018-09-28 | 曾凡洪 | A kind of anti-blood back venous detaining needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102485285B (en) | 2015-08-19 |
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Effective date of registration: 20160517 Address after: Huapu square Tianhe District Huaming road Guangzhou City, Guangdong province 510623 9 No. 2901 (part A) Patentee after: Guangzhou heart medical instruments Co., Ltd. Address before: 525400 Guangdong province Dianbai Water Town People's Street No. 71 North Road West Patentee before: Xie Shigeng |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170516 Address after: Jiaxing City, Zhejiang province Jiashan County 314100 street to the valley Luoxing Park Venture Center D Room 405 Patentee after: Zhejiang Han he medical instruments Co., Ltd. Address before: Huapu square Tianhe District Huaming road Guangzhou City, Guangdong province 510623 9 No. 2901 (part A) Patentee before: Guangzhou heart medical instruments Co., Ltd. |