CN102485285B - The thrombosis prevention device of venous detaining needle - Google Patents

The thrombosis prevention device of venous detaining needle Download PDF

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Publication number
CN102485285B
CN102485285B CN201010582336.5A CN201010582336A CN102485285B CN 102485285 B CN102485285 B CN 102485285B CN 201010582336 A CN201010582336 A CN 201010582336A CN 102485285 B CN102485285 B CN 102485285B
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Prior art keywords
piston
sleeve pipe
closing member
nook closing
sleeve
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CN201010582336.5A
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CN102485285A (en
Inventor
谢世庚
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Zhejiang Han he medical instruments Co., Ltd.
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谢世庚
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Abstract

The present invention relates to the category of medical apparatus and instruments, be a kind of thrombosis prevention device of venous detaining needle, it is by casing seat, sleeve pipe, piston, ejector sleeve, and nook closing member forms.It is characterized in that there is a piston in casing seat, piston is fixed on the end of ejector sleeve, and nook closing member passes and is enclosed within sleeve pipe in ejector sleeve and from piston.Extract nook closing member after having operated venipuncture routinely just can infuse.During transfusion time-out tube sealing, piston pushes away forward and the blasthole of closed casing.When continuing to infuse, piston is drawn back.Simple to operate and there is malleation and close the effect of dual preventing thrombosis stoping blood backflow.

Description

The thrombosis prevention device of venous detaining needle
Technical field
The present invention relates to the category of medical apparatus and instruments, is a kind of thrombosis prevention device of venous detaining needle.
Background technology
Existing venoclysis needle is easy piercing blood vessel in infusion process, and every day must be changed.The invention of venous detaining needle and application overcome these shortcomings, need nook closing member to extract out during use after completing venipuncture, leave sleeve pipe, so can not injured blood vessel, can stay Ink vessel transfusing continuously with several days.
But existing venous detaining needle, once transfusion suspends, will produce blood back phenomenon, form thrombosis at the end of sleeve pipe and result in blockage.Even if pressurization is washed open, thrombosis also can block blood capillary, produces vasculitis.For addressing these problems, the envelope pin liquid that patent in recent years and product utilization anticoagulant are made or the method by malleation, although alleviate and delay the formation of thrombosis, the thrombosis formed after cannot preventing suspending transfusion completely.One is had to utilize check valve principle to prevent blood back flow preventing thrombosis, although there are some effect complex process performance unreliable being difficult to pile wide application.
Summary of the invention
The object of the present invention is to provide a kind of thrombosis prevention device of venous detaining needle, during time-out transfusion, piston pushes away forward and makes to produce malleation and closed casing in sleeve pipe, more effectively can prevent thrombosis by the method for dual prevention blood backflow.
The object of the present invention is achieved like this: in existing venous detaining needle casing seat, establish a piston and be fixed on the end of ejector sleeve, ejector sleeve is hollow pipe.The nook closing member of remaining needle passes from piston in ejector sleeve, then enters in sleeve pipe.Extract nook closing member when infusing after completing venipuncture by the operating routine of existing remaining needle during operation, piston will extract the position sealing of nook closing member automatically, and when guaranteeing to infuse, medicinal liquid can not spill.When suspending transfusion tube sealing, with ejector sleeve piston pushed away forward medicinal liquid is produced malleation in sleeve pipe while the blasthole of closed casing, make to produce malleation in sleeve pipe and close to reach to stop the effect of blood backflow preventing thrombosis.When need continue to infuse, piston is drawn back, and now the blasthole of sleeve pipe is opened and carries out normal infusion, and this venous detaining needle using method is identical with existing remaining needle, only piston need be pushed away forward during tube sealing.Be that sleeve pipe blasthole is closed prevention blood back again by positive pressure tube sealing during tube sealing, dual prevention blood backflow preventing thrombosis effect is more reliable.
The present invention only need arrange piston in the casing seat of existing venous detaining needle, and piston is fixed on ejector sleeve end, and nook closing member is in ejector sleeve and pass piston, only piston need be pushed away forward during tube sealing, easy to operate, and structure is simple, easily implements.
Accompanying drawing explanation
The concrete structure of invention is drawn by following embodiment and accompanying drawing thereof.
Fig. 1 is the profile of thrombosis prevention device of the venous detaining needle proposed according to the present invention.The profile of the thrombosis prevention device of venous detaining needle when Fig. 2 is tube sealing.
Detailed description of the invention
The details and the working condition that propose concrete device according to the present invention is described in detail below in conjunction with Fig. 1, Fig. 2.
The thrombosis prevention device of venous detaining needle comprises a main casing body seat (1), a closing cock (8) and a piston (2) is had in main body, piston is fixed on the end of ejector sleeve (3), and nook closing member (4) passes from piston (2) in ejector sleeve (3).
To scheme, extract nook closing member (4) during operation after completing venipuncture, sleeve pipe (5) is stayed intravenous and can be infused routinely.Medicinal liquid flows in 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.When transfusion time-out carries out tube sealing, shift piston (2) onto the end with ejector sleeve (3) and the blasthole (6) of sleeve pipe (5) is closed.When proceeding transfusion, piston is drawn back, and produces negative pressure in sleeve pipe (5), and the blasthole be closed (6) is opened and can be seen blood back and can infuse.Make to produce malleation in sleeve pipe (5) because piston during tube sealing (2) pushes away forward.Blasthole (6) is closed again and is stoped blood backflow sleeve pipe (5) by piston (2), and have malleation simultaneously and close two kinds of preventing thrombosis measures, effect is more reliable.

Claims (2)

1. the thrombosis prevention device of a venous detaining needle, it is characterized in that comprising a main casing body seat (1), a closing cock (8) and a piston (2) is had in main body, piston is fixed on the end of ejector sleeve (3), nook closing member (4) passes from piston (2) in ejector sleeve (3), nook closing member (4) is provided with sleeve pipe (5) in the part that main casing body seat (1) is outside, nook closing member (4) is extracted after completing venipuncture during operation, sleeve pipe (5) is stayed intravenous and can be infused routinely, ductule (7) is connected with casing seat (1), medicinal liquid flows in casing seat (1) from ductule (7), closing cock (8) stops medicine to flow out backward night, medicinal liquid can only flow into blood vessel through sleeve pipe (5) forward thus, when transfusion time-out carries out tube sealing, during tube sealing, piston (2) pushes away forward and makes to produce malleation in sleeve pipe (5), and blasthole (6) is closed again and stoped blood backflow sleeve pipe (5) by piston (2), when proceeding transfusion, piston (2) is drawn back, and produces negative pressure in sleeve pipe (5), and the blasthole be closed (6) is opened and can be seen blood back and can infuse.
2. the thrombosis prevention device of venous detaining needle according to claim 1, is characterized in that ejector sleeve (3) is hollow pipeline.
CN201010582336.5A 2010-12-03 2010-12-03 The thrombosis prevention device of venous detaining needle Active CN102485285B (en)

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)

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CN102485285A CN102485285A (en) 2012-06-06
CN102485285B true CN102485285B (en) 2015-08-19

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN104998335B (en) * 2015-07-23 2018-04-17 中国人民解放军第四军医大学 A kind of PICC thrombolysis apparatus
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN201871054U (en) * 2010-12-03 2011-06-22 谢世庚 Thrombus prevention device for venous indwelling needle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003175112A (en) * 2001-10-02 2003-06-24 Mitsubishi Pencil Co Ltd Indwelling needle structure
JP5108580B2 (en) * 2008-03-26 2012-12-26 テルモ株式会社 Indwelling needle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN201871054U (en) * 2010-12-03 2011-06-22 谢世庚 Thrombus prevention device for venous indwelling needle

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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

TR01 Transfer of patent right
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.