CN105169528A - Anti-leakage syringe - Google Patents

Anti-leakage syringe Download PDF

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Publication number
CN105169528A
CN105169528A CN 201510423371 CN201510423371A CN105169528A CN 105169528 A CN105169528 A CN 105169528A CN 201510423371 CN201510423371 CN 201510423371 CN 201510423371 A CN201510423371 A CN 201510423371A CN 105169528 A CN105169528 A CN 105169528A
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CN
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Prior art keywords
piston
syringe
needle
connecting
arranged
Prior art date
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CN 201510423371
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Chinese (zh)
Inventor
严永增
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苏州百利医疗用品有限公司
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Abstract

The invention discloses an anti-leakage syringe. The anti-leakage syringe comprises a syringe outer tube, a needle, a piston and a piston plunger, wherein the syringe outer tube is connected with a needle connecting pipe, and a sealing sleeve sleeves the needle connecting pipe; the needle penetrates through the sealing sleeve and is connected to the needle connecting pipe, and a liquid outlet end of the needle is arranged outside the sealing sleeve; one end of the piston plunger is provided with a piston connecting part, and the other end of the piston plunger is provided with a pushing-pulling part; an elastic retreating-preventing annular clamp is arranged on the side wall of the piston connecting part, and the elastic retreating-preventing annular clamp inclines towards the pushing-pulling part; the piston is arranged on the piston connecting part in a sleeving manner, and a piston skirt is arranged on the side wall of the piston; a projection is arranged on the inner wall of the syringe outer tube, and inclines towards the direction of the needle. The anti-leakage syringe can be prevented from being utilized by determined perpetrators to threaten the safety of others; and in addition, in the use process, the sealing effect is good without liquid leakage, and the operation is convenient and rapid.

Description

防泄漏注射器 Leak-proof syringe

技术领域 FIELD

[0001] 本发明涉及医疗器械技术领域,尤其涉及了一种防泄漏注射器。 [0001] The present invention relates to the technical field of medical devices, and particularly to a leakage preventing syringe.

背景技术 Background technique

[0002] 现有的注射器的针头与外筒的连接不够牢靠,在西药或注射时,由于内部压力过大等原因,会出现针头脱落、药液泄漏的现象,而且普通型注射器存在反复使用的可能性,使用者在使用反复使用的注射器,注射器内的液体则会受到污染以及感染细菌,而且如果注射器被有心人士利用,则会威胁人们的安全。 [0002] The needle of the syringe with the conventional outer cylinder of less robust connection, when medicine or injection, since the internal pressure is too large and other reasons, will fall off the needle, liquid leakage phenomenon, and presence of normal syringe used repeatedly the possibility of users in the use of reusable syringes, liquid in the syringe will be subject to bacterial contamination and infection, and if the syringe is utilized interested parties, it will threaten the safety of people.

发明内容 SUMMARY

[0003] 针对现有技术存在的不足,本发明的目的就在于提供了一种防泄漏注射器,防泄漏、防漏气,密封性能好,避免了注射器被重复使用。 [0003] for the shortcomings of the prior art, an object of the present invention to provide a leak-tight syringe, leak-proof, gas leak, sealing performance, prevent the syringe being used repeatedly.

[0004] 为了实现上述目的,本发明采用的技术方案是这样的:一种防泄漏注射器,包括注射器外筒、针头、活塞、活塞柱,所述注射器外筒连接有针头连接管,该针头连接管外套设有密封套;所述针头穿过密封套并连接于针头连接管上,且针头的出液端设置于密封套外;所述活塞柱的一端设置有活塞连接部,另一端设置有推拉部;所述活塞连接部的侧壁上设置有弹性阻退环卡,所述弹性阻退环卡朝向推拉部倾斜;所述活塞套设在活塞连接部上,且活塞的侧壁上设置有活塞裙边;所述注射器外筒内壁设有突出部,所述突出部朝向针头方向倾斜。 [0004] To achieve the above object, the technical solution employed in the present invention is such that: an anti-leakage syringe comprising a syringe barrel, a needle, a piston, piston rod, the syringe barrel is connected to a needle connecting tube, the needle hub the outer tube is provided with a sealing sleeve; the needle through the sealing sleeve and the connecting tube connected to the needle, and the liquid is provided on the outer end of the needle gland; end of the piston rod is provided with a connecting portion, and the other end is provided with a sliding portion; disposed on a side wall of the piston connecting portion with an elastic ring back barrier card, said resilient barrier back toward the push ring portion tilt the card; the piston sleeve disposed in the piston connecting portion, and is provided on the side wall of the piston a piston skirt; the inner wall of the syringe barrel is provided with an outer protruding portion, the protruding portion is inclined toward the direction of the needle.

[0005] 作为一种优选方案,所述针头连接管的一端为锥形体端、另一端带圆柱体端,所述圆柱体端外设置有外螺纹。 [0005] As a preferred embodiment, one end of the pipe is connected to the needle cone end and the other end of the band end of the cylinder, the end of the outer cylinder is provided with an external thread.

[0006] 作为一种优选方案,所述密封套的内孔一端与针头连接管的锥形体端密封配合,另一端设有与针头连接管的外螺纹相匹配的内螺纹。 [0006] As a preferred embodiment, the tapered end of said gland body bore and one end of connecting tube is sealed with a needle, the other end is provided with an internal thread and external thread the needle connecting tube match.

[0007] 作为一种优选方案,所述活塞的侧面设置密封槽,该密封槽内设置有密封圈。 [0007] As a preferred embodiment, the side surface of the piston seal groove is provided, which is provided with a seal ring groove.

[0008] 作为一种优选方案,所述推拉部设置有圆环状推拉环。 [0008] As a preferred embodiment, the annular sliding portion is provided with a sliding ring.

[0009] 作为一种优选方案,所述注射器外筒上设有弹力杆,所述弹力杆上连接有弹性球。 [0009] As a preferred embodiment, the rod is provided with elastic force of the syringe barrel, said rod is connected to the elastic force of the resilient ball.

[0010] 作为一种优选方案,所述活塞与针头连接管之间设置有带刺塑料筛板。 [0010] As a preferred embodiment, the needle is disposed between the piston and the connecting pipe prickly plastic sieve.

[0011] 与现有技术相比,本发明的有益效果:本发明的注射器防止注射器被有心人士利用威胁人们安全,而且在使用过程中密封效果好、不漏液,操作便捷。 [0011] Compared with the prior art, the beneficial effects of the invention: the syringe to prevent the syringe according to the present invention are those determined using a security threat to people, and in the course of good sealing effect, no leakage, easy operation.

附图说明 BRIEF DESCRIPTION

[0012] 图1是本发明的结构示意图; [0012] FIG. 1 is a structural diagram of the present invention;

图2是图1中A处放大图。 1 A in FIG. 2 is an enlarged view of FIG.

具体实施方式 detailed description

[0013] 下面结合具体实施例对本发明作进一步描述。 [0013] The following embodiments in conjunction with specific embodiments of the present invention will be further described. 以下实施例仅用于更加清楚地说明本发明的技术方案,而不能以此来限制本发明的保护范围。 The following examples serve only to more clearly illustrate the technical solutions of the present invention, and are not intended to limit the scope of the invention.

[0014] 实施例: [0014] Example:

如图1、图2所示,一种防泄漏注射器,包括注射器外筒1、针头2、活塞3、活塞柱4,所述注射器外筒I连接有针头连接管5,该针头连接管5外套设有密封套6 ;所述针头2穿过密封套6并连接于针头连接管5上,且针头2的出液端设置于密封套6外;所述活塞柱4的一端设置有活塞连接部7,另一端设置有推拉部8 ;所述活塞连接部7的侧壁上设置有弹性阻退环卡9,所述弹性阻退环卡9朝向推拉部8倾斜;所述活塞3套设在活塞连接部7上,且活塞3的侧壁上设置有活塞裙边10 ;所述注射器外筒I内壁设有突出部11,所述突出部11朝向针头2方向倾斜;所述活塞3的侧面设置密封槽(由于已经安装有构件,故图中并未示出),该密封槽内设置有密封圈12。 1, FIG. 2, an anti-leakage syringe comprising a syringe outer cylinder 1, needles 2, a piston 3, the piston rod 4, the syringe barrel is connected to the needle I coupling pipe 5, the pipe 5 connected to the outer needle 6 is provided with a sealing sleeve; 2 the needle through the sealing sleeve is connected to the needle hub 6 and the pipe 5, and the liquid end of the needle 2 is provided on the outer sealing sleeve 6; end of the piston rod 4 is provided with a piston connecting portion 7, and the other end is provided with a sliding portion 8; ring provided with an elastic back barrier card 9, the elastic blocking ring card back toward the sliding portion 9 8 the inclined side wall 7 of the piston connecting portion; the piston 3 provided in the sleeve 7, and is provided on the side wall of the piston 3 has a piston connected to the piston skirt portion 10; inner wall of the syringe outer cylinder I 11 has a projecting portion, the projecting portion 11 toward the inclined direction of the needle; side of the piston 3 sealing groove (due member has been installed, it is not shown in FIG.), which is provided with a seal ring groove 12. 本发明具体实施时,先将活塞3套设于活塞柱4的活塞连接部7上固定,然后将带活塞3的活塞柱4用力插入注射器外筒I内,此时活塞3收缩,弹性阻退环卡9也受压收缩,使得活塞3强制进入注射器外筒I内,当拉回活塞柱4时,弹性阻退环卡9滑动至突出部11处受阻卡住,密封性能好,防泄漏。 The specific embodiments of the present invention, the first connecting portion 4 of the piston 3 of the piston sleeve disposed in the piston rod 7 is fixed, and the piston rod 4 with a force 3 is inserted into the syringe barrel I, this time the piston 3 contracts, the resilient back barrier 9 also shrink pressure ring cards, so that the piston 3 is forced into the syringe barrel I, when the piston rod 4 is retracted, the elastic protruding portion 11 to the sliding ring back barrier jammed card 9 hindered good sealing performance, anti-leakage.

[0015] 本发明优选所述针头连接管5的一端为锥形体端、另一端带圆柱体端,所述圆柱体端外设置有外螺纹13 ;所述密封套6的内孔一端与针头连接管5的锥形体端密封配合,另一端设有与针头连接管5的外螺纹相匹配的内螺纹。 [0015] The present invention is preferably one end of the needle tube 5 is connected to the cone end and the other end of the band end of the cylinder, the end of the outer cylinder 13 is provided with an external thread; end of the sealing sleeve bore 6 is connected with the needle cone sealing engagement end of the tube 5, and the other end connected to an internal thread 5 and the needle tube matches the external thread. 其中针头连接管5与密封套6之间螺纹连接,两者螺旋拧紧,这样即使内部压力很高,针头2也不会脱落,吸药或注射非常安全,另外,针头连接管5与密封套6之间的锥形密封部分提高了密封效果。 Wherein the needle tube 5 is connected to the threaded connection between the sealing sleeve 6, the two helical tightened, so that even if the internal pressure is high, the needle 2 does not come off, very safe drug inhalation or injection, Further, the needle tube 5 is connected to the sealing sleeve 6 tapered seal portion between the improved sealing effect.

[0016] 本发明优选所述推拉部8设置有圆环状推拉环14。 [0016] Preferably, the sliding portion 8 of the present invention is provided with a sliding annular ring 14. 具体实施时手指插入圆环状推拉环14内来抽取或注射药液,提高了注射器的安全性,操作更便捷。 DETAILED DESCRIPTION finger inserted into the annular sliding ring 14 to extract the injection liquid or to improve the safety of the syringe, the operation more convenient.

[0017] 本发明优选所述注射器外筒I上设有弹力杆15,所述弹力杆15上连接有弹性球16。 [0017] The lever 15 is provided on the elastic force of the present invention, preferably the syringe barrel I, the stretch rod 16 is connected to the resilient ball 15. 在给病人进行肌肉注射时敲打弹力杆15即可,操作简便、省时省力,减轻了医务人员的工作量。 Beat in the stretch rod by intramuscular injection to the patient 15 can be, easy to operate, saving time, reducing the workload of medical staff.

[0018] 本发明优选所述活塞3与针头连接管5之间设置有带刺塑料筛板17。 [0018] Preferably the present invention, the piston 3 is provided with the needle connecting tube 17 with a barbed plastic sieve between 5. 使用时,当活塞柱4内推到底部时,活塞3会被带刺塑料筛板17刺穿,注射器将无法被使用,防止重复使用。 In use, when the piston rod 4 to push in the end portion of the piston 3 is pierced barbed plastic sieve 17, the syringe can not be used to prevent reuse.

[0019] 以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明技术原理的前提下,还可以做出若干改进和变形,这些改进和变形也应视为本发明的保护范围。 [0019] The above are only preferred embodiments of the present invention, it should be noted that those of ordinary skill in the art, in the art without departing from the principles of the present invention is provided, can make various modifications and variations, these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims (7)

  1. 1. 一种防泄漏注射器,其特征在于:包括注射器外筒、针头、活塞、活塞柱,所述注射器外筒连接有针头连接管,该针头连接管外套设有密封套;所述针头穿过密封套并连接于针头连接管上,且针头的出液端设置于密封套外;所述活塞柱的一端设置有活塞连接部,另一端设置有推拉部;所述活塞连接部的侧壁上设置有弹性阻退环卡,所述弹性阻退环卡朝向推拉部倾斜;所述活塞套设在活塞连接部上,且活塞的侧壁上设置有活塞裙边;所述注射器外筒内壁设有突出部,所述突出部朝向针头方向倾斜。 An anti-leakage syringe comprising: a syringe barrel, a needle, a piston, piston rod, the syringe barrel is connected to a needle connecting tube, the outer tube is connected with the needle gland; through the needle a sealing sleeve and a needle connected to the connecting tube, and a fluid disposed on the outer end of the needle gland; the end of a piston rod is provided with a connecting portion, and the other end is provided with a sliding portion; side wall of the upper piston connecting portion an elastic blocking ring card back, tilting the elastomeric barrier ring back toward the card push portion; a piston sleeve disposed in the piston connecting portion, provided on a side wall of the piston and the piston skirt; said outer syringe barrel inner wall disposed a protruding portion, the protruding portion is inclined toward the direction of the needle.
  2. 2.根据权利要求I所述的一种防泄漏注射器,其特征在于:所述针头连接管的一端为锥形体端、另一端带圆柱体端,所述圆柱体端外设置有外螺纹。 2. A syringe according to one leakage prevention according to claim I, wherein: one end of the pipe is connected to the needle cone end and the other end of the band end of the cylinder, the end of the outer cylinder is provided with an external thread.
  3. 3.根据权利要求2所述的一种防泄漏注射器,其特征在于:所述密封套的内孔一端与针头连接管的锥形体端密封配合,另一端设有与针头连接管的外螺纹相匹配的内螺纹。 An anti according to claim 2 of the injector leakage, which is characterized in that: the tapered end of said gland body bore and one end of connecting tube is sealed with a needle, the other end is provided with an external thread with a needle connecting tube matching internal thread.
  4. 4.根据权利要求I所述的一种防泄漏注射器,其特征在于:所述活塞的侧面设置密封槽,该密封槽内设置有密封圈。 An anti claimed in claim I injector leakage, which is characterized in that: the side surface of the piston seal groove is provided, which is provided with a seal ring groove.
  5. 5.根据权利要求I所述的一种防泄漏注射器,其特征在于:所述推拉部设置有圆环状推拉环。 A proof of claim I of the leakage syringe, characterized in that: said annular sliding portion is provided with a sliding ring.
  6. 6.根据权利要求I所述的一种防泄漏注射器,其特征在于:所述注射器外筒上设有弹力杆,所述弹力杆上连接有弹性球。 6. An anti-leak syringe as claimed in claim I in claim 1, wherein: said rod is provided with elastic force of the syringe barrel, said rod is connected to the elastic force of the resilient ball.
  7. 7.根据权利要求I所述的一种防泄漏注射器,其特征在于:所述活塞与针头连接管之间设置有带刺塑料筛板。 7. An anti-leak syringe as claimed in claim I in claim 1, wherein: said piston and needle connection is provided between the plastic pipe prickly sieve.
CN 201510423371 2015-07-20 2015-07-20 Anti-leakage syringe CN105169528A (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2688966A (en) * 1951-10-06 1954-09-14 Huber Jennie Compartmented ampoule
US4026287A (en) * 1975-12-10 1977-05-31 Irene Haller Syringe with retractable cannula
US5382235A (en) * 1993-07-07 1995-01-17 R.M.S. Safety, Inc. Device for capturing and retracting the needle cannula of a disposable syringe
US6485459B1 (en) * 1999-08-24 2002-11-26 Joshua Surowitz Retractable non-reusable needle
CN1671431A (en) * 2002-05-27 2005-09-21 Mb因诺瓦蒂翁公司 Disposable injection device designed to be pre-filled
CN201208438Y (en) * 2008-06-05 2009-03-18 刘文杰 Needle head retraction controllable injector for pre-embedment vaccine
US20140228802A1 (en) * 2013-02-12 2014-08-14 Abbvie Inc. Syringe with two-stage sealing pressure
CN204864375U (en) * 2015-07-20 2015-12-16 苏州百利医疗用品有限公司 Prevent leaking syringe

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2688966A (en) * 1951-10-06 1954-09-14 Huber Jennie Compartmented ampoule
US4026287A (en) * 1975-12-10 1977-05-31 Irene Haller Syringe with retractable cannula
US5382235A (en) * 1993-07-07 1995-01-17 R.M.S. Safety, Inc. Device for capturing and retracting the needle cannula of a disposable syringe
US6485459B1 (en) * 1999-08-24 2002-11-26 Joshua Surowitz Retractable non-reusable needle
CN1671431A (en) * 2002-05-27 2005-09-21 Mb因诺瓦蒂翁公司 Disposable injection device designed to be pre-filled
CN201208438Y (en) * 2008-06-05 2009-03-18 刘文杰 Needle head retraction controllable injector for pre-embedment vaccine
US20140228802A1 (en) * 2013-02-12 2014-08-14 Abbvie Inc. Syringe with two-stage sealing pressure
CN204864375U (en) * 2015-07-20 2015-12-16 苏州百利医疗用品有限公司 Prevent leaking syringe

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