CN105902304A - Conical tip type deep vein puncture needle - Google Patents

Conical tip type deep vein puncture needle Download PDF

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Publication number
CN105902304A
CN105902304A CN 201610367663 CN201610367663A CN105902304A CN 105902304 A CN105902304 A CN 105902304A CN 201610367663 CN201610367663 CN 201610367663 CN 201610367663 A CN201610367663 A CN 201610367663A CN 105902304 A CN105902304 A CN 105902304A
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CN
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Prior art keywords
needle
core
body
tip
outer
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CN 201610367663
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Chinese (zh)
Inventor
罗和国
蔺琳
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武夷山捷安医疗器械制造有限公司
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3417Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating

Abstract

The invention discloses a conical tip type deep vein puncture needle which comprises a core needle and an outer sleeve needle. The core needle is integrally composed of a core needle connector 1, a hollow core needle body 2 and a closed conical tip type needle point 5. The position, close to the conical tip type needle point, of the core needle body is provided with a core needle small hole 4. The outer sleeve needle is integrally composed of an outer sleeve needle connector 7, a sleeve needle body 3 and a needle end 8. The position, close to the needle end, of the sleeve needle body is provided with a sleeve needle small hole 6. An annular inclined face is arranged on the needle end. The core needle and the outer sleeve needle are movably connected through the core needle connector 1 and the outer sleeve needle connector 7. The needle end of the outer sleeve needle and the needle point of the core needle are combined into a conical tip shape, liquid enters and leaves the needle through the core needle small hole and the sleeve needle small hole, and puncture incision is small during deep vein puncture. The sleeve needle body of the outer sleeve needle and the core needle body can slide, large incisions are avoided even when pleura or artery is punctured by mistake, gas leakage and blood leakage are avoided, and injuries of patients is greatly reduced.

Description

锥尖式深静脉穿刺针 Deep vein conical tip needle

技术领域 FIELD

[0001 ]本发明涉及一种深静脉穿刺针,特别是涉及一种锥尖式深静脉穿刺针。 [0001] The present invention relates to a deep-vein needle, more particularly to a cone tip Deep vein puncture needle.

背景技术 Background technique

[0002]目前,临床上用于深静脉穿刺的针直径较粗,因而在穿刺时如果误穿胸膜造成气胸其后果严重,可引起严重气胸,导致病人呼吸困难甚至死亡。 [0002] Currently, the thicker diameter needle for deep vein puncture clinically, thus puncture if misused wear pleura pneumothorax caused serious consequences, can cause severe pneumothorax, resulting in the patient breathing difficulties and even death. 若误穿动脉导致颈部血肿,影响脑部供血和压迫气道,严重者也可导致病人的死亡。 If the error cause wear neck artery hematoma, affecting the brain and blood airway compression, can also result in severe cases death of the patient.

[0003] 中国专利号ZLCN200820179450.1公开了一种可试穿深静脉穿刺针,它由一根18号粗针和一根24号细针组成,其中细针套在粗针内,细针的尖端露在粗针针尖的尖端外 [0003] Chinese Patent No. ZLCN200820179450.1 discloses a try deep vein needle, which consists of a number of core needle 18 and a No. 24 needle, where the needle sets in core needle, the needle outer core needle tip exposed needle tip

1.5cm,两针的另一端是连接部,和注射器针筒的连接部相连。 1.5cm, the other end of the connecting portion of the needles, and the connecting portion is connected to the syringe barrel. 该可试穿深静脉穿刺针使用时先经套在粗针里面的细针试穿,待穿针回抽有血后,将套在细针外面的粗针沿着细针方向前滑行而与细针的针尖齐平,将细针抽出,粗针套在注射器调节穿刺深度回抽有血后即可,该实用新型可减少传统的深静脉穿刺针所致严重并发症如血气胸、血肿的发生。 This can be tried when deep vein puncture needle was used to try to cover the needle inside the core needle, needle until blood Withdrawing the needle cover out of the front needle core needle sliding direction along with the flush with needle tip, the needle is withdrawn to cover core needle, the invention can reduce the traditional deep veins of the syringe needle after piercing depth adjusting Withdrawing blood due to serious complications such as pneumothorax, hematoma occur.

[0004]但上述实用新型存在如下不足:其一是细针和粗针的针尖均与常规注射针头一样有一斜面,当细针套在粗针内时,两个针头的总斜面面积较大,在穿刺时对患者的穿刺部位的组织产生一定的损伤,其二是细针的外表面和粗针的内表面间存在一环隙,在穿刺操作时易出现漏气和漏血现象的发生。 [0004] However, the above disclosure the following defects: one is a fine needle and core needle tip were the same as with a conventional injection needle with a bevel, when the needle sheath within the core needle, two needles a total area of ​​the inclined surface is large, when puncturing tissue puncture site of a patient have some damage, and the second is the presence of a needle annulus between the outer and inner surfaces of the core needle, prone to leakage of blood and air leakage phenomenon when puncturing operation.

发明内容 SUMMARY

[0005]本发明的目的是克服现有技术的不足,提供一种锥尖式深静脉穿刺针。 [0005] The object of the present invention is to overcome the disadvantages of the prior art, there is provided a cone tip Deep vein puncture needle.

[0006]本发明的技术方案概述如下: [0006] aspect of the present invention is summarized as follows:

[0007]锥尖式深静脉穿刺针,包括芯针和外套针,所述芯针由芯针连接头1、中空的芯针针体2和闭合的锥尖式针尖5—体组成,芯针针体的近锥尖式针尖处设置有芯针小孔4;所述外套针由外套针连接头7、套针体3和针端部8—体组成,套针体的近针端部处设置有套针小孔6,针端部设置有环状斜面,环状斜面和套针体中心线的夹角角度与锥尖式针尖斜面和芯针针体中心线的夹角角度相同,芯针和外套针通过芯针连接头I和外套针连接头7活动连接,使外套针的套针体的内表面与芯针针体的外表面接触且能使芯针针体在套针体内滑动。 [0007] Deep vein conical tip needle, a needle and an outer needle includes a core, a core of the core-pin connector pin 1, a hollow core needle body 2 and the closure cone-tip needle 5- body composition, core needle near the tip of the needle tip of the cone-type body 4 is provided with a core needle aperture; said outer jacket by a pin 7-pin connector, the trocar 3 and the end portion of the needle body composition 8-, near the needle end of the trocar body 6 is provided with a hole trocar, needle end is provided with an annular inclined surface, an annular chamfer included angle centerline and the trocar tip of the cone angle between the bevel and the core type needle tip centerline same core inner and outer surface of the needle-pin connector and the outer connector I activity through the 7-pin connector core needle, trocar needle so that the outer body is in contact with the outer surface of the core body and the needle enables the needle to slide core trocar in vivo .

[0008]本发明的优点: [0008] The advantages of the present invention:

[0009]本发明的锥尖式深静脉穿刺针,芯针人针尖没有孔,呈闭合的锥尖式,外套针套在芯针后,外套针的针端部与芯针的针尖也组合成锥尖状,液体通过芯针小孔和套针小孔进出,在进行深静脉穿刺时穿刺时破口小。 [0009] The conical tip Deep vein puncture needle of the present invention, core needle person tip without holes, in a closed cone-tip, the outer needle hub after the core needle, needle end portion of the core needle tip of the outer needle combination into pointed cone, the liquid orifice and the core needle through the hole and out of the trocar, the puncture hour break during deep vein puncture. 外套针的套针体的内表面与芯针针体的外表面接触且可滑动,误穿胸膜或动脉后不会造成大的破口,避免了漏气和漏血,对病人的损伤大大减少。 Not cause a big break after the inner surface of outer trocar needle body contact with the outer surface of the core needle body and slidably, wearing mistake pleural or artery, to avoid leakage and endoleak, greatly reducing the damage to the patient .

附图说明 BRIEF DESCRIPTION

[0010]图1为锥尖式深静脉穿刺针芯针示意图。 [0010] Figure 1 is a schematic view of core needle puncture needle tip cone Deep vein.

[0011 ]图2为锥尖式深静脉穿刺针外套针示意图。 [0011] FIG. 2 is a schematic diagram of a conical tip Deep vein needle outer needle.

[0012]图3为芯针和外套针通过芯针连接头和外套针连接头连接示意图。 [0012] FIG. 3 is a core needle and the outer needle connector connection diagram through the core and an outer needle connector pin.

[0013]图4为芯针和外套针局部剖面示意图。 [0013] FIG. 4 is a partial schematic cross-sectional view of the core pin and an outer pin.

具体实施方式 Detailed ways

[0014]下面结合附图对本发明作进一步的说明。 [0014] The following drawings further illustrate the present invention in combination.

[0015]锥尖式深静脉穿刺针,包括芯针和外套针,芯针由芯针连接头1、中空的芯针针体2和闭合的锥尖式针尖5—体组成,芯针针体的近锥尖式针尖处设置有芯针小孔4;外套针由外套针连接头7、套针体3和针端部8—体组成,套针体的近针端部处设置有套针小孔6,针端部设置有环状斜面,环状斜面和套针体中心线的夹角角度与锥尖式针尖斜面和芯针针体中心线的夹角角度相同,芯针和外套针通过芯针连接头I和外套针连接头7活动连接,使外套针的套针体的内表面与芯针针体的外表面接触且能使芯针针体在套针体内滑动。 [0015] Deep vein conical tip needle, comprising a needle and an outer core pin, the core pin is connected by a core needle head 1, a hollow core needle body 2 and the tip of the cone tip 5- formula closed body composition, core needle body near the tip of the cone-tip needle is provided with a core hole 4; outer jacket by a pin 7-pin connector, trocar needle end portion 3 and a body composed of 8-, near the needle end of the needle body is provided with a sleeve trocar apertures 6, needle end is provided with an annular inclined surface, an annular chamfer included angle centerline and the trocar tip of the cone angle between the bevel tip and the core of formula centerline of the same needle, the needle and the outer needle core I through the core pin connector and the outer connector pin 7 is movably connected, the inner surface and the outer surface of the core body trocar needle outer needle body and make contact with the core needle to slide in the trocar body.

[0016]芯针连接头I和外套针连接头7都可以与注射器的针筒的连接部相连。 [0016] I core and the outer pin connector pin connector 7 may be connected to the connection portion of the syringe barrel.

[0017]使用: [0017] use:

[0018]先将芯针和外套针通过芯针连接头和外套针连接头连接并与注射器针筒连接,芯针小孔和套针小孔相对,进行深静脉穿刺试穿,待芯针穿入深静脉回血后,将套在芯针外面的外套针沿着芯针向前滑行而与芯针的针尖平齐,将芯针抽出,外套针与注射器针筒连接后调节穿刺深度回抽有血后即可。 [0018] The first core needle and the outer needle connector is connected through the core pin and an outer pin connector and connected to the syringe barrel, and core needle orifice trocar opposed apertures, deep vein puncture try to be needled core after deep venous return of blood into the needle sheath jacket on the outside of the core needle sliding forwardly along the core pin is flush with the tip of the core pin, the core needle is withdrawn after piercing depth adjustment jacket connected with a needle and syringe barrel Withdrawing to the blood.

Claims (1)

  1. 1.锥尖式深静脉穿刺针,包括芯针和外套针,其特征是所述芯针由芯针连接头(I)、中空的芯针针体(2)和闭合的锥尖式针尖(5) —体组成,芯针针体的近锥尖式针尖处设置有芯针小孔(4);所述外套针由外套针连接头(7)、套针体(3)和针端部(8)一体组成,套针体的近针端部处设置有套针小孔(6),针端部设置有环状斜面,环状斜面和套针体中心线的夹角角度与锥尖式针尖斜面和芯针针体中心线的夹角角度相同,芯针和外套针通过芯针连接头(I)和外套针连接头(7)活动连接,使外套针的套针体的内表面与芯针针体的外表面接触且能使芯针针体在套针体内滑动。 1. The tip of the cone-type deep vein puncture needle, comprising a needle and an outer needle core, wherein the needle core member of the core-pin connector (I) by the core needle, a hollow (2) and a closed tip of the cone tip of formula ( 5) - the composition of the body, near the tip of the cone-type core needle tip of the needle body is provided with a core needle hole (4); said outer jacket by a needle pin connector (7), the trocar body (3) and a needle end (8) is integrally composed of the needle near the needle end of the sheath body is provided with a trocar orifice (6), needle end is provided with an annular bevel, trocar bevel and annular centerline and the angle between the conical tip the inner surface of the same type included angle of the bevel and the core needle tip centerline, the core needle through the core and the outer needle connector pin connector (I) and an outer needle connector (7) activity, so that outer trocar needle body contact with the outer surface of the core body and the needle enables the needle to slide core in the trocar body.
CN 201610367663 2016-05-27 2016-05-27 Conical tip type deep vein puncture needle CN105902304A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101057986A (en) * 2007-05-29 2007-10-24 袁福利 Deep vein puncture device
CN201806767U (en) * 2010-10-21 2011-04-27 艾青 Deep venipuncture device
US20120283640A1 (en) * 2007-04-18 2012-11-08 Access Scientific, Inc. Access device
CN202859249U (en) * 2012-10-30 2013-04-10 陶学有 Deep vein puncture sleeved pipe
CN204543118U (en) * 2015-04-14 2015-08-12 复旦大学附属眼耳鼻喉科医院 Take dark vein pjncture needle of pressure measurement device
CN205903294U (en) * 2016-05-27 2017-01-25 武夷山捷安医疗器械制造有限公司 Bore dark vein pjncture needle of sharp formula

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120283640A1 (en) * 2007-04-18 2012-11-08 Access Scientific, Inc. Access device
CN101057986A (en) * 2007-05-29 2007-10-24 袁福利 Deep vein puncture device
CN201806767U (en) * 2010-10-21 2011-04-27 艾青 Deep venipuncture device
CN202859249U (en) * 2012-10-30 2013-04-10 陶学有 Deep vein puncture sleeved pipe
CN204543118U (en) * 2015-04-14 2015-08-12 复旦大学附属眼耳鼻喉科医院 Take dark vein pjncture needle of pressure measurement device
CN205903294U (en) * 2016-05-27 2017-01-25 武夷山捷安医疗器械制造有限公司 Bore dark vein pjncture needle of sharp formula

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