CN102716526B - Venous indwelling needle - Google Patents

Venous indwelling needle Download PDF

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Publication number
CN102716526B
CN102716526B CN 201210144673 CN201210144673A CN102716526B CN 102716526 B CN102716526 B CN 102716526B CN 201210144673 CN201210144673 CN 201210144673 CN 201210144673 A CN201210144673 A CN 201210144673A CN 102716526 B CN102716526 B CN 102716526B
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CN
China
Prior art keywords
needle
puncture
shank
transfusion
puncture needle
Prior art date
Application number
CN 201210144673
Other languages
Chinese (zh)
Other versions
CN102716526A (en
Inventor
刘佐
Original Assignee
刘佐
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 刘佐 filed Critical 刘佐
Priority to CN 201210144673 priority Critical patent/CN102716526B/en
Publication of CN102716526A publication Critical patent/CN102716526A/en
Application granted granted Critical
Publication of CN102716526B publication Critical patent/CN102716526B/en

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Abstract

The invention provides a venous indwelling needle, belonging to a field of medical apparatus. The venous indwelling needle provided in the invention overcomes insufficiency of the puncture needle existing in the venous indwelling needle with a present structure, wherein the puncture needle can cut off human tissue, and causes blocking of a blood return hole and low strength of a needle rod. The venous indwelling needle provided in the invention comprises a puncture needle and a transfusion needle sleeved on the needle rod. of the puncture needle. Improvement provided in the invention is that the blood return hole composed of an axis hole and a side through hole on the puncture needle rod is canceled, thereby the whole puncture needle is solid; a section of axial direction flat section or axial direction groove is arranged on the needle rod on the narrowed port of the front end of the transfusion needle tubing, and a blood return through hole is formed between the narrowed port of the transfusion needle tubing and the axial direction flat section or the axial direction groove on the transfusion needle rod. The venous indwelling needle provided in the invention has the advantages that phenomenon of human tissue cutting does not exist in the puncture process because of non-existence of the blade formed on the inclined plane of the needle point. With the venous indwelling needle provided in the invention, no blood return or slow blood return due to blocking of the needle tubing of the puncture needle in the prior art are avoided so as to eliminate fault. t Excavation part of the cross section of the puncture needle rod is small for keeping out a blood return channel, and strength of the needle rod is strengthened. The venous indwelling needle provided in the invention has characteristics of bending resistance and flexural resistance, such that security of usage is improved.

Description

A kind of venous detaining needle
Technical field
The invention belongs to medical apparatus and instruments, be specifically related to the injection syringe needle.
Background technology
By puncture needle be enclosed within the venous detaining needle that the software plastic material transfusion needle on the puncture needle is formed, when first transfusion, bring the shank of transfusion needle into vein by puncture needle, behind the blood back, extract puncture needle out, medicinal liquid injects blood vessel through the transfusion pin hole, finish once transfusion after, transfusion needle is stayed original position, reuse when infusing, transfusion needle can be kept somewhere in human body nearly hundred hours next time.Based on the advantage in the venous detaining needle medical treatment and technical factor, the more developed country is widely used abroad.Application is at home in recent years also increasing gradually.In venous transfusion, use the disposable vein remaining needle, reduced the venipuncture number of times, prolong the venipuncture interval.And easy and simple to handle, success rate is high, side effect is little, alleviates the patient suffering, guarantee in time, safe medication.Reduced medical personnel's workload and prevented that effectively medical personnel from avoiding injecting blood contamination in addition.But the front end of the puncture needle in the existing remaining needle has the blood back hole from pinpoint inclined plane to pin front end side, make that the pinpoint inclined plane part is identical with existing normal injection needle head structure, needle point first inclined-plane crosses into cutting edge with second inclined-plane with the blood back hole, can be as injection needle in the past, in carrying out the human body piercing process, cutting to some extent human body skin and flesh tissue down enters needle tubing, makes puncture needle pipe plug plug, cause not blood back or blood back slow, cause medical personnel's misjudge.Simultaneously, open axle center hole and axle center hole at puncture needle and lead to the side through hole of side as the blood back hole, more by cut-out at axle center hole and side through hole block position, reduced shank intensity herein to a great extent, there is operation unexpected slightly, it is unavoidable that bending takes place, and the potential danger that injures the patient is arranged.
Summary of the invention
The purpose of this invention is to provide a kind of venous detaining needle, be used for the patient infusion treatment, the puncture needle that overcomes the venous detaining needle existence of existing structure can cut away tissue, the deficiency that shank front end intensity is low.
Venous detaining needle of the present invention comprises puncture needle and the transfusion needle that is enclosed within on the puncture needle shank, puncture needle wherein is by shank, the needle bar frame of shank rear end, be connected the operation holding plate on the needle bar frame, the beveled point of shank front end constitutes, transfusion needle wherein is by the needle tubing that is enclosed within on the puncture needle shank, the needle tubing seat of syringe rear end, the blood back pipe at the needle tubing rear portion tube for transfusion joint of holding concurrently constitutes, transfusion needle needle tubing internal diameter is slightly larger than puncture needle shank external diameter, the front end of transfusion needle needle tubing closes up on the periphery of puncture needle shank, the improvement of doing is, the blood back hole of being formed by axle center hole and side through hole on the cancellation puncture needle shank, it all is solid making puncture needle, shank in closing in place of transfusion needle needle tubing front end has one section axial side grain or axial groove, forms the blood back through hole between the axial side grain on the closing in of transfusion needle needle tubing and the puncture needle shank or groove.
Good effect of the present invention is: because the puncture needle free of pinholes, can not form cutting edge on pinpoint inclined plane, not exist and carry out cutting the phenomenon of human body skin and flesh tissue down in the human body piercing process, having avoided in the past, the needle tubing of puncture needle stops up, cause not blood back or blood back slow, eliminated error.To excavate part few in order to reserve the blood back passage in puncture shank cross section, and shank intensity increases, and bending resistance, anti-folding have promoted the safety of using.
Description of drawings
Fig. 1 has the remaining needle master of axial side grain to look intention on the puncture needle shank of the present invention.
Fig. 2 has the remaining needle of axial side grain to overlook intention on the puncture needle shank of the present invention.
Fig. 3 is for there being the remaining needle side grain A-A of the place cutaway view of axial side grain on the puncture needle shank of the present invention.
Fig. 4 is for there being the remaining needle front view of axial groove on the puncture needle shank of the present invention.
Fig. 5 is for there being the remaining needle side grain B-B of the place cutaway view of axial groove on the puncture needle shank of the present invention.
The specific embodiment
Embodiment 1
Consult Fig. 1, Fig. 2, Fig. 3, venous detaining needle of the present invention comprises puncture needle and the transfusion needle that is enclosed within on the puncture needle shank, puncture needle wherein is by shank 1, the needle bar frame 2 of shank rear end, be connected the operation holding plate 3 on the needle bar frame, the beveled point 4 of shank front end constitutes, transfusion needle wherein is by the needle tubing 5 that is enclosed within on the puncture needle shank, the needle tubing seat 6 of syringe rear end, hold concurrently tube for transfusion joint 7 of the blood back pipe at needle tubing rear portion constitutes, transfusion needle needle tubing internal diameter is slightly larger than puncture needle shank external diameter, the front end of transfusion needle needle tubing closes up on the periphery of puncture needle shank, the puncture needle shank all is solid, shank in closing in place of transfusion needle needle tubing front end has one section axial side grain 8, forms blood back through hole 9 between the closing in of transfusion needle needle tubing and puncture needle shank side grain.
Embodiment 2
Consult Fig. 4, Fig. 5, venous detaining needle of the present invention comprises puncture needle and the transfusion needle that is enclosed within on the puncture needle shank, puncture needle wherein is by shank 1, the needle bar frame 2 of shank rear end, be connected the operation holding plate 3 on the needle bar frame, the beveled point 4 of shank front end constitutes, transfusion needle wherein is by the needle tubing 5 that is enclosed within on the puncture needle shank, the needle tubing seat 6 of syringe rear end, hold concurrently tube for transfusion joint 7 of the blood back pipe at needle tubing rear portion constitutes, transfusion needle needle tubing internal diameter is slightly larger than puncture needle shank external diameter, the front end of transfusion needle needle tubing closes up on the periphery of puncture needle shank, the puncture needle shank is solid, shank in closing in place of transfusion needle needle tubing front end has one section axial groove 10, and transfusion needle needle tubing corresponding axial groove 10 parts and the axial groove 10 that close up forms blood back through holes 11.

Claims (1)

1. venous detaining needle, comprise puncture needle and the transfusion needle that is enclosed within on the puncture needle shank, puncture needle wherein is by shank, the needle bar frame of shank rear end, be connected the operation holding plate on the needle bar frame, the beveled point of shank front end constitutes, transfusion needle wherein is by the needle tubing that is enclosed within on the puncture needle shank, the needle tubing seat of syringe rear end, the blood back pipe at the needle tubing rear portion tube for transfusion joint of holding concurrently constitutes, transfusion needle needle tubing internal diameter is slightly larger than puncture needle shank external diameter, the front end of transfusion needle needle tubing closes up on the periphery of puncture needle shank, it is characterized in that, the blood back hole that cancellation is made up of puncture needle axis through-hole and side through hole, making puncture needle all is real core, on the puncture needle shank of transfusion needle needle tubing closing in front end, with the intraluminal puncture needle shank of transfusion needle needle tubing one section axial side grain or axial groove that communicates is arranged, described axial side grain or axial groove do not communicate with described pinpoint inclined plane, make on the described pinpoint inclined plane and can not form cutting edge, the axial side grain on the described puncture needle shank or axial groove form the blood back through hole in transfusion needle needle tubing closing in front end and tube chamber.
CN 201210144673 2012-05-11 2012-05-11 Venous indwelling needle CN102716526B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201210144673 CN102716526B (en) 2012-05-11 2012-05-11 Venous indwelling needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201210144673 CN102716526B (en) 2012-05-11 2012-05-11 Venous indwelling needle

Publications (2)

Publication Number Publication Date
CN102716526A CN102716526A (en) 2012-10-10
CN102716526B true CN102716526B (en) 2013-09-18

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Application Number Title Priority Date Filing Date
CN 201210144673 CN102716526B (en) 2012-05-11 2012-05-11 Venous indwelling needle

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104784806B (en) * 2015-03-10 2019-01-15 北京伏尔特技术有限公司 A kind of arteriovenous indwelling equipment and its application method
CN104958807B (en) * 2015-06-17 2018-04-24 苏州艾隆科技股份有限公司 Machine infusion niidl is matched somebody with somebody in semi-automatic punching
CN105214168A (en) * 2015-11-10 2016-01-06 江苏苏云医疗器材有限公司 Venous detaining needle needle assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2865711Y (en) * 2005-12-09 2007-02-07 陈世晓 Bypass type venous retaining needle
CN201930328U (en) * 2011-01-20 2011-08-17 孙玉峰 Subcutaneous indwelling needle
CN202554635U (en) * 2012-05-11 2012-11-28 刘佐 Venous indwelling needle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2865711Y (en) * 2005-12-09 2007-02-07 陈世晓 Bypass type venous retaining needle
CN201930328U (en) * 2011-01-20 2011-08-17 孙玉峰 Subcutaneous indwelling needle
CN202554635U (en) * 2012-05-11 2012-11-28 刘佐 Venous indwelling needle

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