CN202761816U - Disposable transfusion needle - Google Patents

Disposable transfusion needle Download PDF

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Publication number
CN202761816U
CN202761816U CN 201220318493 CN201220318493U CN202761816U CN 202761816 U CN202761816 U CN 202761816U CN 201220318493 CN201220318493 CN 201220318493 CN 201220318493 U CN201220318493 U CN 201220318493U CN 202761816 U CN202761816 U CN 202761816U
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CN
China
Prior art keywords
needle
piercing
member
connector
end
Prior art date
Application number
CN 201220318493
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Chinese (zh)
Inventor
张焕娥
孙玉花
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张焕娥
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Priority to CN201110268247.8 priority Critical
Priority to CN201120339770.0 priority
Priority to CN201120339770 priority
Priority to CN2011102682478A priority patent/CN102294063A/en
Application filed by 张焕娥 filed Critical 张焕娥
Priority to CN 201220318493 priority patent/CN202761816U/en
Application granted granted Critical
Publication of CN202761816U publication Critical patent/CN202761816U/en

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Abstract

A disposable transfusion needle comprises a needle tube and a needle handle arranged at the rear portion of the needle tube and is characterized in that a limiting structure which acts on a puncturing type connecting piece of an indwelling device and limits the needle handle to do lateral movement relative to the puncturing type connecting piece of the indwelling device is arranged on the needle handle. The disposable transfusion needle and the end surface of the puncturing type connecting piece of the indwelling device are in abut joint to form a whole, breakage force acting on the transfusion needle can be lowered or eliminated when the limbs of a patient or a transfusion device moves, so that the occurrence of breakage phenomenon of the needle tube can be effectively reduced.

Description

一次性使用输液针 Disposable infusion needle

技术领域 FIELD

[0001] 本实用新型涉及医疗器械领域,具体涉及一种一次性静脉输液针,该一次性静脉输液针特别适合与留置针、中心静脉导管等留置器件相连接配合使用。 [0001] The present invention relates to the field of medical devices, particularly relates to a disposable intravenous infusion needle, the disposable needle particularly suitable for intravenous infusion catheter, central venous catheter indwelling device connected with the use.

背景技术 Background technique

[0002] 静脉输液针,其主要作用是穿刺静脉建立输液通路,配套输注器具用于进行输液输血。 [0002] Intravenous infusion needle, whose main role is to establish puncturing the vein infusion passage, supporting an infusion set for transfusion. 现有的静脉输液针由针管、针柄、导管以及连接座组成,所述针管的前端为斜口针孔,针管后端上设针柄,针管穿过针柄与导管的一端连接,导管另一端上设连接座,连接座用于与输液器连接;所述针柄主要有单翼和双翼两种,它设于针管后部,作用是便于护士持针和穿刺。 Conventional intravenous infusion needle by the needle, the needle handle, and the catheter connector housing composed of a front end of said needle cannula is beveled pinhole, disposed on the needle rear end of the needle tube shank, the shank end of the needle through the needle and catheter connected to ducts provided on the base end connected, for connection with the connecting base infusion; main wing of the needle shank and two kinds of wings, it is provided in the rear portion of the needle, the nurse role is to facilitate the puncture needle. [0003] 在实际临床输液中,常会使用到留置针、中心静脉导管等留置器件,即预先在患者静脉中置入了留置针、中心静脉导管等留置器件,在需要输液时,只要将输液针I穿刺连接于留置器件的穿刺式连接件2上即可,如附图I所示,然后胶带固定。 [0003] In the actual clinical infusion, often use the catheter, central venous catheter indwelling device, i.e., pre-placement of the catheter, central venous catheter indwelling device in a patient's vein, when required infusion, as long as the infusion needle I connected to the puncture needle catheter indwelling device connector can, as shown in figures 2 I and tape. 现有的输液针I与留置器件的穿刺式连接件2对接后,没有特制的限位结构进行定位,即输液针未可靠定位于留置器件的穿刺式连接件2上,即使使用胶带固定输液针I与留置器件的穿刺式连接件2,虽然限制了它们两者轴向的分离,但两者之间仍可作独立的侧向运动,当输液器的软管突发移动时,输液针I的针管根部即会受到一折断力(见附图I中的箭头所示),易出现折针情况。 After conventional infusion needle puncture of formula I indwelling device mating connector 2, there is no special positioning limiting structure, i.e., the infusion needle is not securely positioned piercing member connected to the indwelling device 2, even if the infusion needle taping I indwelling needle catheter device connector 2, while limiting their axial separation therebetween, but still be separate lateral motion therebetween, when a mobile infusion hose burst, the infusion needle I i.e., the root of the needle will be a break force (see arrow I in FIG figures), where the needle off prone.

发明内容 SUMMARY

[0004] 本实用新型的目的是提供一种一次性使用输液针,以解决现有输液针与留置器件的穿刺式连接件连接时定位不可靠,易出现折针情况的问题。 [0004] The object of the present invention is to provide a disposable infusion needle, in order to solve the positioning member connector connected to the piercing needle and the infusion catheter prior device is unreliable, the needle off situation prone to problems.

[0005] 为了解决现有技术中的这些问题,本实用新型提供的技术方案是:一次性使用输液针,包括针管以及设置于针管后部的针柄,所述针柄上设有作用于留置器件的穿刺式连接件的,限制针柄相对留置器件的穿刺式连接件作侧向运动的限位结构。 [0005] In order to solve these problems of the prior art, the present invention provides a technical solution: disposable infusion needle, comprising a needle cannula and a needle disposed in the rear portion of the shank of the needle, is provided acting on the needle shank to the indwelling piercing device connector to limit the indwelling needle shaft opposite the piercing device connector member for limiting lateral movement of the structure.

[0006] 上述技术方案,具有以下解释以及变化: [0006] The above technical solution, the following explanation and variations:

[0007] I、上述方案中,所述“针柄上设有作用于留置器件的穿刺式连接件的,限制针柄相对留置器件穿刺式连接件作侧向运动的限位结构”中,所述“侧向运动”是指与针管的轴向相交的方向上的运动。 [0007] I, the above-described embodiment, the "piercing connector member is provided with retention means acting on the shank of the needle, the needle shaft to limit the relative retention device connector member for piercing the stopper structure of the lateral movement" in the He said "lateral movement" means the movement in the direction intersecting the axial direction of the needle tube. 具体“限位结构”可以是针柄上延伸出的一体结构也可以是装配在针柄上的独立的结构或两者的复合结构。 DETAILED "retaining structure" may be an integral structure extending from the needle shaft may be separate structures, or assembled composite structure on both the needle shank. 所述“限位结构”包括如下方案: The "limiting structure" includes the following scheme:

[0008] a.所述限位结构包括针柄朝向留置器件的穿刺式连接件设置的一抵靠面或不在一直线上的至少三个抵靠点,这一抵靠面或不在一直线上的至少三个抵靠点在针管轴向上与留置器件的穿刺式连接件的端面或其端面覆盖物抵靠配合。 [0008] a. The limit structure comprises a piercing member connected to the indwelling needle shank towards a device provided abutment surface out of alignment or at least three abutment points, the abutment surface out of alignment or the three abutment points in axial direction of the needle tube is connected to the piercing member placement device or the end face covers at least the end surface thereof abuts against the mating.

[0009] b、所述限位结构由针柄上的一个轴向抵靠点以及至少三个侧向抵靠点组成,或者所述限位结构由针柄上的两个轴向的抵靠点和与这两个轴向抵靠点不在同一平面上的至少两个侧向抵靠点组成;轴向抵靠点沿针管轴向与留置器件的穿刺式连接件端面或其端面覆盖物抵靠配合,而侧向抵靠点在针管的周向上均布,且在针管径向上与留置器件的穿刺式连接件抵靠配合或与留置器件的穿刺式连接件上的端面覆盖物抵靠配合。 [0009] b, the retaining structure of an axial abutment on the shank of the needle point by point and at least three lateral abutment composition, or against the retaining structure by the two abutting axially on the needle shaft and at least two points and two lateral axial abutment point against not coplanar dots; piercing connection points along the axial abutment axially with the needle or indwelling device end face thereof abuts end surface cover by fitting, laterally abutting points are distributed in the circumferential direction of the needle tube, and the diameter of the needle piercing connector member upwardly against the retention means cooperate with the end face on the cover or piercing connector retention devices thereof against cooperation.

[0010] 上述a、b方案中,所述“与留置器件的穿刺式连接件的端面或其端面覆盖物抵靠配合”中的“其端面覆盖物”是指留置器件的穿刺式连接件端面上外设的覆盖物,譬如护套 [0010] The a, b, said "indwelling needle catheter device connector end surface or end face thereof abuts against the cover with the" in "end face covers" refers to the piercing end face connector retention devices covering peripherals, such as a sheath

坐寸ο Sit inch ο

[0011] 具体方案有:所述限位结构为针柄上朝向留置器件的穿刺式连接件端面的一盖帽结构,该盖帽结构由一垂直于针管轴向的抵靠面以及该抵靠面外周向前端突起的一圈凸边构成;所述盖帽结构的大小与留置器件的穿刺式连接件端部或其端部覆盖物大小相匹配,且盖帽结构用于卡套于留置器件的穿刺式连接件端部或其端部覆盖物上,其抵靠面与留置器件的穿刺式连接件端面或其端部覆盖物相抵靠,其一圈凸边的内表面与留置器件的穿刺式连接件端部或其端部覆盖物的外周面抵靠。 [0011] Specific programs are: limiting the cap structure is a structural element piercing connector retention means toward the upper end surface of the needle shaft, the capping structure on a surface perpendicular to the axial direction of the tube against the needle and against the outer circumferential surface convex to the circle constituting the distal end side of the protrusion; piercing connector retention devices of the size of the end cap structure or a portion of the end cover sizes match, and a structure for capping the ferrule retained in the puncture device connection end portion thereof covering the upper end portion thereof, and the abutting surface piercing catheter device connector end face thereof abuts against an end portion of the cover, the piercing member connector which circle the inner surface of the rim end indwelling device or a portion thereof covering the end portion of the outer circumferential surface of the abutment.

[0012] 2、上述方案中,所述针柄上设有限制针柄沿轴向脱离留置器件的穿刺式连接件的卡锁结构。 [0012] 2, the above-described embodiment, the locking structure is provided to limit the needle shaft in the axial direction of the piercing device from the catheter connector on the needle shank. 所述针柄上设有的卡锁结构是针柄延伸出的一体结构也可以是装配在针柄上的独立的结构或两者的复合结构。 Provided on the needle shank of latching structure is a unitary structure extending out of the needle shaft may be separate structures, or assembled composite structure on both the needle shank.

[0013] 具体该卡锁结构可以是卡钩结构、卡槽结构、勒紧的绳索或条状固定带、弹性夹、锁扣、扣板等。 [0013] In particular the locking structure may be a hook structure, the structure of the slot, tightening of the strip-like rope or strap, an elastic clip, latch, pinch like. 具体方案为:所述卡锁结构由一支撑部以及支撑部向前伸出的多个卡钩组成,所述支撑部设于针柄上,多个卡钩在支撑部上绕针管的轴心均布,其朝前的延伸端上内设钩部;多个卡钩的钩部构成一作用于留置器件的穿刺式连接件的爪部。 Specific programs: a plurality of said latching hook structure composed of a supporting portion and a support portion projecting forwardly of the composition, the support portion is provided on the needle shank, a plurality of hook about the axis of the needle tube on the support portion uniform, its forwardly extending end portion of the hook features; a plurality of hooks constituting the hook acts on a pawl portion indwelling devices piercing connector.

[0014] 再进一步:所述卡钩为左右两个,这两卡钩的前端内设所述钩部,而其中部与支撑部连接形成支点,且两卡钩的后端还向后延伸作为解锁手柄。 [0014] Still further: The hook is about two tip equipped with two hook the hook portion, and wherein the support portion is formed a fulcrum connecting portion, and the rear hooks extending further rearwardly as release lever.

[0015] 再进一步:所述卡锁结构的支撑部中心开孔,支撑部以该孔滑动穿套于所述针柄上;所述支撑部与针柄间作用有弹性元件,该弹性元件的作用力迫使针柄相对支撑部朝前端运动,使限位结构作用于留置器件的穿刺式连接件上。 [0015] Still further: a support portion of the central opening of the latching mechanism, the supporting portion to slide on said sleeve through bore needle shank; between the shank portion and the support pin acting elastic element, the elastic element force forcing the needle shaft relative movement of the support portion toward the front end, the stopper structure is applied to the piercing member connector retention devices.

[0016] 3、上述方案中,所述卡钩的朝前延伸端超过针管的前端,或者卡钩上设有一围绕针管前端分布的环形的护翼,以此围绕遮挡针管的前端(即针尖),起到防误针刺的作用。 [0016] 3, the above-described embodiment, the hook forwardly extending end than the distal end of the needle tube, or snap hook is provided with flaps a surrounding annular tube distal distribution needle, thereby surrounding the distal occlusion needle (i.e. the needle tip) , played the role of anti-error acupuncture.

[0017] 4、上述方案中,所述针管上还穿套设有一穿刺式连接件护套,该穿刺式连接件护套的开口朝向前端,其内腔与留置器件的穿刺式连接件的端部相匹配;在针管从留置器件的穿刺式连接件上拔出后,穿刺式连接件护套可继续留置覆盖于穿刺式连接件上,以避免留置器件的穿刺式连接件的端面被微生物和其他有害物质污染。 [0017] 4, the above-described embodiment, the needle further provided with a sleeved jacket piercing connector member, the connector member piercing an opening toward the distal end of the sheath, which piercing device lumen catheter connector end match portion; the needle is pulled out from the puncture device connector retention member, piercing the sheath member connected to the cover can be retained to continue piercing connector member to prevent the end face of the piercing member connector retention devices are microorganisms and other pollution by harmful substances.

[0018] 相比于现有技术中的解决方案,本实用新型的优点是: [0018] Compared to prior art solutions, the advantages of the present invention are:

[0019] I.由于本实用新型一次性输液针上设有限制其相对留置器件的穿刺式连接件作侧向移动的限位结构,能够将本实用新型一次性输液针与留置器件的穿刺式连接件的端面相抵连接为一个整体,使患者肢体移动或者输液器具移动时降低或者消除输液针上所受的折断力作用,从而有效降低针管折断现象的发生。 [0019] I. Because of their relatively restricts the retention element piercing connector device for limiting lateral movement of the structure of the present invention, disposable infusion needle, the present invention can be disposable indwelling infusion needle piercing devices end surface against a connecting member integrally connected to the patient's limb or lowering movement of the mobile infusion or eliminate the breaking force suffered infusion needle, thus effectively reducing the occurrence of needle breakage phenomena.

[0020] 2.由于本实用新型的一次性输液针还设有限制针柄沿轴向脱离留置器件的穿刺式连接件的卡锁结构,更加有效地将一次性输液针与留置器件的穿刺式连接件连接成一体,从而避免针管折断现象的发生。 [0020] 2. Since the present invention further restricts the infusion needle disposable needle shaft in the axial direction from the locking structure of the piercing member connector retention devices, disposable infusion more effectively indwelling needle piercing devices connecting member integrally connected, so as to avoid breaking the needle tube phenomenon.

[0021] 3.由于本实用新型的一次性输液针设有穿刺式连接件护套,当输液针连接留置器件的穿刺式连接件时,穿刺式连接件护套可以套于留置器件的穿刺式连接件端面上,在输液时起到隔离保护穿刺面的作用,避免输液过程中发生微生物污染;而当输液结束后输液针与留置器件的穿刺式连接件分离时,由于穿刺式连接件护套和输液针是穿套连接,在输液针拔出后由于穿刺式连接件护套和输液针连接的摩擦力小于穿刺式连接件护套与留置器件的穿刺式连接件间的摩擦力,结果输液针拔出,穿刺式连接件护套能留在留置器件端部上,以保护留置器件的穿刺式连接件端部避免被微生物和其他有害物质污染。 [0021] 3. Since the present invention is provided a disposable infusion needle piercing connector member sheath, when the infusion needle connected to an indwelling needle catheter device connector, piercing the jacket can be set in the connector retention devices piercing the end surface of the connecting member, piercing surface protection functions in isolation infusion, avoid microbial contamination during the infusion; and when the end of the infusion needle catheter indwelling infusion needle connection device separated, since the jacket piercing connector wear sleeve and the infusion needle is connected, after the infusion needle is pulled out due to the friction between the piercing member connector connected to the piercing member piercing connector member is smaller than the frictional force jacket and sheath indwelling infusion needle device is connected, as a result of infusion needle is pulled out, the sheath piercing connector member placement device can be left on the end connector member to protect the ends of the piercing retention device to avoid contamination of microorganisms and other harmful substances.

[0022] 4.由于本实用新型的卡钩向前延伸的端部超过针管的前端,或所述卡钩的上设有一围绕针管前端的环形的护翼,起到了防针刺效果。 [0022] 4. Since the end portion of the present invention the hook extending forwardly over the front end of the needle or tube, the hook is provided with a surrounding annular flaps needle pipe end, played a needlestick prevention effect.

附图说明 BRIEF DESCRIPTION

[0023] 下面结合附图及实施例对本实用新型作进一步描述: [0023] accompanying drawings and the following examples further describe embodiments of the present invention as:

[0024] 附图I为现有技术的输液器与留置器件的穿刺式连接件连接时的受力示意图; [0024] BRIEF piercing connector member I is prior art indwelling infusion device when the force connection diagram;

[0025] 附图2为本实用新型实施例一的结构示意图;· [0025] Figure 2 embodiment of the present invention is a structural diagram; -

[0026] 附图3为本实用新型实施例一与留置器件的穿刺式连接件装配连接后的示意图; [0026] Figure 3 present a new type of indwelling needle catheter device embodiment schematic view of the embodiment of fitting connection utility;

[0027] 附图4为本实用新型实施例二的结构示意图; [0027] Figure 4 a schematic view of the structure according to the second invention of the present embodiment;

[0028] 附图5为本实用新型实施例二与留置器件的穿刺式连接件装配连接后的示意图; Example disclosure [0028] FIG. 5 shows two devices connected to the indwelling view after piercing connector assembly;

[0029] 附图6为本实用新型实施例三的结构示意图; [0029] FIG 6 is a schematic structural diagram of third embodiment of the invention;

[0030] 附图7为本实用新型实施例四的结构示意图; [0030] FIG 7 is a schematic structural diagram of the fourth embodiment of the invention;

[0031] 附图8为本实用新型实施例五的结构示意图; [0031] FIG 8 is a schematic structural diagram according to a fifth embodiment of the invention;

[0032] 附图9为本实用新型实施例六的整体结构示意图; [0032] FIG 9 is a schematic overall configuration according to a sixth embodiment of the invention;

[0033] 附图10为本实用新型实施例六的输液针主要部分外形示意图; [0033] Figure 10 a schematic embodiment of the new infusion needle shape six main portion of the present utility;

[0034] 附图11为本实用新型实施例六与留置器件的穿刺式连接件的装配过程示意图; Six schematic assembly process and the piercing connector member indwelling NOVEL Example [0034] FIG. 11 of the present practical;

[0035] 附图12为本实用新型实施例七的结构示意图。 [0035] FIG. 12 is a schematic structural diagram according to a seventh embodiment of the novel utility.

[0036] 其中:1、现有输液针;2、留置器件的穿刺式连接件;3、针管;4、针柄;5、导管;6、抵靠面;7、留置器件的穿刺式连接件;8、盖帽结构;9、抵靠面;10、凸边;11、穿刺式连接件护套;12、防滑线状突起或者点状突起;13、连接座;14、支撑部;15、卡钩;16、钩部;17、药液过滤器;18、流量调节器;19、解锁手柄;20、压簧;21、护翼。 [0036] wherein: 1, conventional infusion needle; 2, piercing connector retention devices; 3, needle; 4, needle handle; 5, catheter; 6, abutment surface; 7 indwelling devices piercing connector ; 8, cap structure; 9, abutment surface; 10, rim; 11, jacket piercing connector member; 12, a linear projection or slip-shaped projections point; 13, connecting base; 14, a support portion; 15, card hook; 16, the hook portion; 17, liquid filter; 18, flow regulator; 19, release lever; 20, compression spring; 21, flaps.

具体实施方式 Detailed ways

[0037] 实施例一:参见附图2〜3所示, [0037] Example I: Referring to the drawings shown in FIG. 2 or 3,

[0038] 一次性使用输液针,由针管3、固设于针管3后端部上的针柄4、针柄4上套装的导管5以及导管5末端连接的连接座组成。 [0038] The disposable infusion needle, the needle tube 3 is fixed on the needle shaft on the rear end portion of the needle 4, the needle shaft 4 set on the conduit 5 and the conduit 5 connecting base composition terminus.

[0039] 所述针柄4上设有作用于留置器件的穿刺式连接件7的,限制针柄4相对留置器件的穿刺式连接件7作侧向运动的限位结构。 It provided acting on [0039] the needle shaft 4 in the connector retention devices piercing member 7 to restrict the indwelling needle shaft 4 relative to the piercing device connector 7 for limiting lateral movement of the structure. 具体该限位结构为针柄4前端上朝向留置器件的穿刺式连接件7设置的一抵靠面6。 An abutment surface 6 of the concrete structure limiting the indwelling device toward the distal end of the needle piercing shank 4 connecting member 7 disposed. 当本实施例输液针与留置器件的穿刺式连接件7装配后,所述抵靠面6在针管3轴向上与留置器件的穿刺式连接件7的端面相抵靠配合,见附图3所示。 7 when assembled piercing needle connector of the present embodiment indwelling infusion device embodiment, the abutment surface 6 of the connecting end 7 against the mating member against the puncture of formula indwelling device in the axial direction of the needle tube 3, see Fig 3 shows. 为了增加稳固性,抵靠面6可设计地的面积较大,甚至大于留置器件穿刺式连接件7的端面。 In order to increase stability, abutment surface 6 may be designed to be large area, even greater than indwelling device piercing member 7 is connected to the end face.

[0040] 上述抵靠面6为一个平面,此为举例说明,若不是一个平面,而仅是不在一直线上的至少三个抵靠点,这至少三个抵靠点在针管轴向上与留置器件的穿刺式连接件7的端面抵靠配合,也可以起到与抵靠面6相同的作用,此变化也包含在本实施例内。 [0040] The abutment 6 is a plane, this is an example, if it is not a plane, but only not on a straight line at least three abutment points, at least three abutment points in axial direction of the needle tube the end face of the piercing catheter device connector mating member 7 abuts, the abutment may also play the same role against the face 6, this variation is also included in the embodiment of the present embodiment.

[0041] 实施例二:参见附图4〜5所示, [0041] Example II: Referring to the drawings shown in FIG. 4 to 5,

[0042] 一次性使用输液针,由针管3、固设于针管3后部的针柄4、针柄4上套装的导管5以及导管5末端连接的连接座组成。 [0042] The disposable infusion needle, the needle tube 3, fixed to the rear portion of the needle shaft 3 needle 4, the needle shaft 4 set on the conduit 5 and the conduit 5 connecting base composition terminus. [0043] 所述针柄4上设有作用于留置器件的穿刺式连接件7的,限制针柄4相对留置器件的穿刺式连接件7作侧向运动的限位结构。 It provided acting on [0043] the needle shaft 4 in the connector retention devices piercing member 7 to restrict the indwelling needle shaft 4 relative to the piercing device connector 7 for limiting lateral movement of the structure. 具体该限位结构为针柄4上朝向留置器件的穿刺式连接件7端面的一盖帽结构8,该盖帽结构8由一垂直于针管3轴向的抵靠面9以及该抵靠面9外周向前端突起的一圈凸边10构成;所述盖帽结构8的大小与留置器件的穿刺式连接件7的端部大小相匹配,且盖帽结构8用于卡套于留置器件的穿刺式连接件7的端部上,其抵靠面9与留置器件的穿刺式连接件7的端面相抵靠,其一圈凸边10的内表面与留置器件的穿刺式连接件7的端部的外周面抵靠,如附图5所示。 DETAILED the limiting structure toward a cap structure 87 end surface piercing connector retention devices on the needle shaft 4, the cap structure 8 comprises a vertically against the abutment 3 in the axial direction of the needle tube surface 9 and the abutment surface of the outer circumference 9 lap edge projecting toward the distal end of the projection 10 constitutes; formula piercing said cap structure and the size of the indwelling device 8 connected to the end portion to match the size of 7, 8 and a cap structure for piercing connector ferrule retained in the device end portion 7, abutment surface 9 is connected to the piercing indwelling device end surface against member 7 against the end member 7 which turn rim piercing the inner surface of the retention device 10 connected to the outer circumferential surface of the abutment by, as shown in figures 5.

[0044] 上述限位结构为盖帽结构8为举例说明,实际中盖帽结构8可进行简化,如抵靠面9可简化为一个轴向的抵靠点,而一圈凸边10可简化为至少三个侧向抵靠点,即所述限位结构由针柄上的一轴向抵靠点以及至少三个侧向抵靠点组成,轴向抵靠点沿针管轴向与留置器件的端面抵靠配合,而至少三个侧向抵靠点在针管的周向上均布。 [0044] The configuration of the stopper cap 8 is illustrated configuration, the actual configuration of the cap 8 can be simplified, such as the simplified abutment surface 9 axially to abut against a point and a circle of at least rim 10 can be simplified three lateral abutment point, i.e., the structure by an axial stop on the needle shaft, and at least three abutment points against the lateral dots, points along the axial abutment indwelling needle tube axial end surface of the device against the fitting, and at least three lateral abutment points in the circumferential direction of the needle tube uniform. 当然,均布为最合理的分布,在保证稳定点的基础上分布点适当调整,此变化也包含在本实施例内。 Of course, the most reasonable for the uniform distribution, distribution points appropriately adjusted to ensure a stable point on the basis of this variation is also included in the embodiment of the present embodiment. 这样的设计也基本能达到限制针柄4相对留置器件穿刺式连接件7作侧向运动的作用,故此变化包括在本实施例之内。 This design can also achieve substantially limit the indwelling needle shaft 4 relative to the piercing means 7 acting connector member for lateral movement, in the present embodiment therefore includes variations of the embodiment. 再比如,抵靠面9可简化为两个轴向的抵靠点或直线,而一圈凸边10可简化为与两个轴向的抵靠点不在同一平面上的至少两个侧向抵靠点,而至少两个侧向抵靠点在针管的周向上均布。 Another example, is the simplified abutment surface 9 axially against the two point or line, the flange 10 can be simplified by a circle on the same plane as the points are not in contact with at least two axially abutting two lateral by point and at least two lateral abutment points in the circumferential direction of the needle tube uniform. 当然,均布为最合理的分布,在保证稳定点的基础上分布点适当调整,此变化也包含在本实施例内。 Of course, the most reasonable for the uniform distribution, distribution points appropriately adjusted to ensure a stable point on the basis of this variation is also included in the embodiment of the present embodiment. 本例中,轴向抵靠点和侧向抵靠点处于相互垂直的平面为最合理。 In this embodiment, lateral and axial abutment point against the point in mutually perpendicular planes is most reasonable. 这样的设计也基本能达到限制针柄4相对留置器件穿刺式连接件7作侧向运动的作用,故此变化包括在本实施例之内。 This design can also achieve substantially limit the indwelling needle shaft 4 relative to the piercing means 7 acting connector member for lateral movement, in the present embodiment therefore includes variations of the embodiment.

[0045] 实施例三:参见附图6所示, [0045] Example III: Referring to the drawings shown in FIG. 6,

[0046] —次性使用输液针,由针管3、固设于针管3后端部上的针柄4、针柄4上套装的导管5以及导管5末端连接的连接座组成。 [0046] - single use infusion needle, the needle tube 3 is fixed on the needle shaft on the rear end portion of the needle 4, the needle shaft 4 set on the conduit 5 and the conduit 5 connecting base composition terminus. 与实施例二的不同之处在于:所述针管3上还穿套设有一穿刺式连接件护套11,该穿刺式连接件护套11的开口朝向前端,内腔与留置器件的穿刺式连接件7的端部相匹配;限位结构与穿刺式连接件护套11外壁抵靠配合。 Example II except that: the sleeve 3 is provided with a further wear member connector piercing needle sheath 11, connected to the piercing member 11 toward the distal opening of the sheath, the lumen of needle catheter placement device is connected the end member 7 of the match; restriction structure 11 and the outer wall of the piercing connector member abutment with the sheath. 在针管从留置器件的穿刺式连接件7上拔出后,穿刺式连接件护套11可继续留置覆盖于留置器件的穿刺式连接件7上。 In the pipe connecting the needle from piercing member after pulled out of the retention device, the piercing member 7 the sheath connector 11 can continue to cover the indwelling catheter-type device is connected to the piercing member 7. 穿刺式连接件护套11内部侧面还可设有防滑线状突起或者点状突起12,以增加穿刺式连接件护套11与留置器件的穿刺式连接件7间的摩擦力。 Piercing connector member 11 may also be provided with anti-slip inner side surface of the sheath of the linear protrusions or dot-shaped protrusion 12 to increase the friction jacket piercing connecting member 11 is connected to an indwelling piercing member 7 of the device. 当输液针连接留置器件的穿刺式连接件7时,穿刺式连接件护套11可以套于留置器件的穿刺式连接件7端面上,在输液时起到隔离保护穿刺面的作用,避免输液过程中发生微生物污染;而当输液结束后输液针与留置器件的穿刺式连接件7分离时,由于穿刺式连接件护套11和输液针是穿套连接,在输液针拔出后由于穿刺式连接件护套11和输液针连接的摩擦力小于穿刺式连接件护套11与留置器件的穿刺式连接件7间的摩擦力,结果输液针拔出,穿刺式连接件护套11仍能留在留置器件的穿刺式连接件7端部上,以保护留置器件的穿刺式连接件7端部避免被微生物和其他有害物质污染。 When the infusion needle device is connected to catheter connector piercing member 7, the piercing member sheath connector 11 can be fitted onto the retention element piercing connecting device 7 of the end surface of the puncture surface play a role in protective isolation infusion, the infusion process to avoid microbial contamination occurs; and when the piercing member connector indwelling infusion needle device 7 after the separation of the infusion, since the piercing member connector and the infusion needle sheath 11 is connected through the sleeve, since the connection puncture needle is pulled out after the infusion sheath member 11 and the frictional connection is less than the infusion needle piercing the friction between the connecting member 7 jacket piercing connector member 11 and the retention device, the infusion needle is pulled result, the piercing connector member 11 still remain in the sheath indwelling device piercing member 7 is connected to an end portion to protect the device indwelling piercing member 7 is connected to the end portions to avoid contamination of microorganisms and other harmful substances. 本实施例限位结构与穿刺式连接件护套11的端部和端部外周抵靠配合起效。 The present embodiment the end portion and the end portion of the outer periphery of the sheath connecting element 11 according to the puncture limiting structure of formula abutment with onset. [0047] 其他同实施例二,这里不再赘述。 [0047] Other embodiments with the two embodiments, is omitted here.

[0048] 实施例四:参见附图7所示, [0048] Fourth Embodiment: Referring to the drawings shown in FIG. 7,

[0049] 一次性使用输液针,由针管3、固设于针管3后部的针柄4、针柄4上套装的导管5以及导管5末端连接的连接座13组成。 [0049] The disposable infusion needle, the needle tube 3, fixed to the rear portion of the needle shaft 3 needle 4, the needle shaft 4 set on the conduit 5 and the conduit 5 connecting base 13 composed terminus.

[0050] 所述针柄4上设有一体或非一体的作用于留置器件的穿刺式连接件7的,限制针柄4相对留置器件的穿刺式连接件7作侧向运动的限位结构。 [0050] The needle shank 4 is integrally provided with one or indwelling devices acting on the piercing member 7 is connected to, limit the indwelling needle shaft 4 relative to the piercing device connector 7 for limiting lateral movement of the structure. 具体该限位结构为针柄4前端有朝向留置器件设置的一抵靠面6,当本实施例输液针与留置器件的穿刺式连接件7装配后,所述抵靠面6在针管3轴向上与留置器件的穿刺式连接件7的端面相抵靠配合。 The particular structure of the needle shank stopper 4 toward a distal abutment surface 6 of the indwelling devices are arranged, according to the present embodiment when the piercing needle indwelling infusion device embodiment connecting element 7 is fitted, the abutment surface 6 on the shaft of the needle tube 3 end surface member 7 upwardly is connected to the indwelling needle catheter device abuts against a mating.

[0051] 并且,所述针柄上还设有限制针柄沿轴向脱离留置器件的穿刺式连接件的卡锁结构。 [0051] and, on the shank of the needle is also provided with locking structure to limit the needle shaft in the axial direction of the piercing device from the catheter connection piece. 该卡锁结构具体如图7所示,是由一支撑部14以及支撑部14上向前伸出的两个卡钩15组成,所述支撑部14固设于针柄4上或者与针柄4 一体连接,两卡钩15在支撑部上绕针·管的轴心均布,且每个卡钩的朝前的延伸端上内设钩部16,两卡钩15的钩部16构成一作用于留置器件的穿刺式连接件7的爪部,即当输液针与留置器件的穿刺式连接件7结合后,两卡钩15的钩部16钩挂于留置器件的穿刺式连接件7上,以此达到限制针柄4沿轴向相对脱离留置器件的穿刺式连接件7的锁定作用。 The locking structure shown in Figure 7 specifically, by a supporting portion 14, and two forwardly projecting hook portion 14 of the support 15 composed of a support portion 14 fixed on the needle shank and needle shaft 4 or 4 integrally connected two hooks 15 around the axis of the needle tube-uniformly distributed on the support portion and the forwardly extending end of each hook portion 16 equipped with a hook, the hooks 16 hook portion 15 constitutes a the piercing connector claw portions piercing connector element 7 acting on indwelling devices, i.e. after 7 binding piercing connector infusion needle indwelling device, hooks the hook portion 16 hook 15 is held on the placement device 7 in order to achieve limit relative axial needle shaft 4 departing from the indwelling needle catheter device connector 7 of the locking action.

[0052] 上述卡钩15的数量为举例说明,实际中至少为两个,当然两个以上更好,譬如三个、四个。 [0052] The number of the hooks 15 is illustrated, in practice at least two, of course, more than two, such as three, four.

[0053] 上述卡锁结构举例为卡钩结构,实际中卡锁结构也可以为绑带结构,如留置器件的穿刺式连接件7端面与抵靠面6相抵靠后,可在针柄4和留置器件的穿刺式连接件7之间绑上固定带,以绑带固定的方式来限制针柄4沿轴向相对脱离留置器件的穿刺式连接件 [0053] Examples of the above-described locking structure hook structure, in practice locking structure may be a strap structure, such as retention element piercing connector device 7 and the end surface 6 against the rear face abutting against the needle shaft 4 and can be piercing connector retention devices 7 between the tie strap, the strap in a fixed way to limit the relative axial needle shaft 4 departing from the retention element piercing connector device

7。 7. 当然,绑带若采用胶带更为方便。 Of course, the use of a tape bandage more convenient.

[0054] 在实际中,卡锁结构的实现方式还有很多,如各种弹性扣结构、卡板结构等,在上述卡钩结构的启发下,本领域技术人员还可联想到各种卡锁结构的变化,这些变化均包括在本实施例之内。 [0054] In practice, the implementation of many of the locking structure, such as various elastic snap features, card board structure, in the light of the above hook structure, those skilled in the art may also think of a variety of latching structural changes, such variations are included within the embodiments of the present embodiment.

[0055] 实施例五:参见附图8所示, [0055] Fifth Embodiment: Referring to the drawings shown in FIG. 8,

[0056] 一次性使用输液针,由针管3、固设于针管3后部的针柄4、针柄4上套装的导管5以及导管5末端连接的连接座13组成。 [0056] The disposable infusion needle, the needle tube 3, fixed to the rear portion of the needle shaft 3 needle 4, the needle shaft 4 set on the conduit 5 and the conduit 5 connecting base 13 composed terminus. 与实施例四的不同之处在于:所述两卡钩15向前延伸的端部超过针管3的前端(即针尖),即以两卡钩15保护针管3的针尖,以消除针尖易被误碰针刺的危险。 Example IV except that: the two end hooks 15 extend forwardly beyond the front end (i.e. tip) of the needle tube 3, i.e. the hooks 15 to protect the needle tip tube 3, to remove the needle easily mistaken touch dangerous acupuncture. 所述卡钩15数量或宽度根据实际情况调整,使他的在针尖周围的缝隙不能通过人的手指,这些变化均包括在本实施例之内。 The hook 15 according to the actual number or width adjusting case, the gap around his needle tip can not be a human finger, such variations are included within the embodiments of the present embodiment.

[0057] 所述针管3上还穿套设有一穿刺式连接件护套11,该穿刺式连接件件护套11的开口朝向前端,其内腔与穿刺式连接件的端部相匹配;限位结构与穿刺式连接件护套外壁抵靠配合。 [0057] on the needle tube 3 is also provided with a sleeved jacket piercing connector member 11, the piercing member connected to the opening member 11 toward the sheath distal end portion which is connected lumen piercing member match; limits piercing bit configuration and the outer wall of the sheath against the connector mating. 在针管从留置器件的穿刺式连接件7上拔出后,穿刺式连接件护套11可继续留置覆盖于留置器件的穿刺式连接件7上。 In the pipe connecting the needle from piercing member after pulled out of the retention device, the piercing member 7 the sheath connector 11 can continue to cover the indwelling catheter-type device is connected to the piercing member 7. 并且,导管5上还设有药液过滤器17以及流量调节器18。 Further, the conduit 5 is also provided with a filter 17 and a liquid flow regulator 18.

[0058] 其它同实施例四,这里不再赘述。 [0058] Other embodiments with four, will not be repeated here.

[0059] 实施例六:参见附图9〜11所示, [0059] Sixth Embodiment: Referring to the drawings shown 9~11,

[0060] 一次性使用输液针,由针管3、固设于针管3后部的针柄4、针柄4上套装的导管5以及导管5末端连接的连接座13组成。 [0060] The disposable infusion needle, the needle tube 3, fixed to the rear portion of the needle shaft 3 needle 4, the needle shaft 4 set on the conduit 5 and the conduit 5 connecting base 13 composed terminus. [0061] 所述针柄4上设有作用于留置器件的穿刺式连接件7的,限制针柄4相对留置器件的穿刺式连接件7作侧向运动的限位结构。 It provided acting on [0061] the needle shaft 4 in the connector retention devices piercing member 7 to restrict the indwelling needle shaft 4 relative to the piercing device connector 7 for limiting lateral movement of the structure. 具体该限位结构为针柄4上朝向留置器件的穿刺式连接件7端面的一盖帽结构8,该盖帽结构8由一垂直于针管3轴向的抵靠面9以及该抵靠面9外周向前端突起的一圈凸边10构成。 DETAILED the limiting structure toward a cap structure 87 end surface piercing connector retention devices on the needle shaft 4, the cap structure 8 comprises a vertically against the abutment 3 in the axial direction of the needle tube surface 9 and the abutment surface of the outer circumference 9 lap edge of the convex projection 10 toward the distal end configuration. 在所述针管3上还穿套设有一穿刺式连接件护套11,该穿刺式连接件护套11的开口朝向前端,其内腔与穿刺式连接件7的端部相匹配,并且,穿刺式连接件护套11后端部与盖帽结构8的大小相匹配,使穿刺式连接件护套11的后端可嵌入盖帽结构8内抵靠于抵靠面9上。 On the needle tube 3 is also provided with a sleeved jacket piercing connector member 11, the piercing connector member 11 toward the distal opening of the sheath, which connection member lumen piercing end portion 7 match and puncture connector member 11 and the rear end portion of the sheath size to match the cap structure 8, so that the rear end of the sheath piercing connector member 11 may be embedded within the structure of the cap 8 abuts against the abutment surface 9. 即当使用时,盖帽结构8的抵靠面9经穿刺式连接件护套11与留置器件的穿刺式连接件7的端面相抵靠,盖帽结构8的一圈凸边10的内表面经穿刺式连接件护套11与留置器件穿刺式连接件7 的端部的外周面抵靠。 That is, when used, the structure of the cap 9 via the abutment surface piercing connector member 8 of the sheath piercing connector member 11 against the end face of the retention device 7 against the inner surface of the cap 8 protruding edge circle configuration 10 via the piercing element sheath 11 is connected to the connecting member 7 indwelling device piercing the outer circumferential surface of the end portion of the abutment. 当针管3从留置器件穿刺式连接件7上拔出后,穿刺式连接件护套11可继续留置覆盖于留置器件穿刺式连接件7上。 When the indwelling needle tube 3 from the connected device piercing member 7 pulled out after the piercing connector element sheath 11 may continue to cover the catheter indwelling device piercing member 7 is connected. 穿刺式连接件护套11的内部侧面上设有防滑线状突起或点状突起12,以增加摩擦力。 Piercing member is provided on the inner side of the connector 11 of the sheath or dot slip projections linear protrusions 12 to increase friction.

[0062] 并且,所述针柄4上还设有限制针柄4沿轴向脱离留置器件的穿刺式连接件7的卡锁结构,该卡锁结构具体是由一支撑部14以及支撑部14上的两个卡钩15组成,所述支撑部14中心开孔,支撑部14以该孔滑动穿套于所述针柄4上,针柄4上对应支撑部14滑动的极限位置设有限位凸起结构,以防针柄4与支撑部14相脱开,具体该限位凸起结构为单向瓣,使针柄4只能倒向进入支撑部14中心开孔中,在装配后针柄4不能退出。 [0062] Further, the shank of the needle 4 further restricts the needle shaft 4 in the axial direction of the piercing device from the catheter connector member detent structure 7, the locking structure is formed by a concrete support portion 14 and a support portion 14 two hooks 15 on the composition of the central portion of the support hole 14, the supporting portion 14 of the bore slidably sleeved on the shank of the needle 4, corresponding to the sliding position of the support portion 14 to limit stopper is provided on the pin shank 4 raised structures, to prevent the supporting unit 4 and the needle handle 14 is disengaged, the specific structure of the limiting protrusion unidirectional valve, the needle 14 into the handle 4 can swing support portion central aperture, the assembly after the needle shank 4 can not quit.

[0063] 两卡钩15在支撑部上绕针管3的轴心均布,且每个卡钩15的前端朝前延伸伸出,其朝前的延伸端上内设钩部16,而每个卡钩15的中部与支撑部14连接形成支点,且两卡钩15的后端还向后延伸作为解锁手柄19。 [0063] The hooks 15 on the support portion about the axis of the needle tube 3 is uniform, and each end of the card projecting hook 15 extending forward, its forward end equipped with a hook portion 16 extends, and each middle of the support portion 15 of the hook 14 are connected to form a fulcrum, and the rear end of the hooks 15 also extends rearwardly of the handle 19 as an unlock. 两卡钩15的钩部16构成一作用于留置器件的穿刺式连接件7的爪部,即当输液针与留置器件的穿刺式连接件7结合后,两卡钩15的钩部16钩挂于留置器件的穿刺式连接件7上,以此达到限制针柄4沿轴向相对脱离留置器件的穿刺式连接件7的锁定作用。 Hook hooks 15 of 16 constitutes an act on indwelling devices piercing connector pawl portions 7, i.e. after 7 binding piercing connector infusion needle indwelling device, the hook portion two hooks 15, 16 hook indwelling device in the piercing member 7 is connected, in order to achieve the locking action limiting member connecting the needle shaft 4 departing from the relative axial retention of the piercing device 7. 而当要解锁时,只要用两指挤压两个卡钩15后端的解锁手柄19,即可使两卡钩15的前端张开,使两卡钩15的钩部16脱离开留置器件的穿刺式连接件7,从而留置器件的穿刺式连接件7可以方便地从爪部中脱出。 When To unlock, as long as the two fingers pressing two rear hooks 15 release lever 19, so that the two hooks to the distal end opening 15, the hook portions 16 of hooks 15 apart from the piercing device indwelling connection member 7, so that piercing member 7 connected to the indwelling device can be easily disengaged from the claw.

[0064] 并且,所述针柄4上在支撑部14与盖帽结构8之间还套设有一弹性元件,该弹性元件具体为一压簧20,由于针柄4侧壁设有只能倒向进入支撑部14中心开孔的单向瓣,而限位结构宽度大于支撑部14中心开孔直径,在装配后针柄4不能退出,这样在该压簧20的作用力迫使针柄4 (即盖帽结构8)相对支撑部14朝前端运动,使盖帽结构8与留置器件的穿刺式连接件7上的护套11卡套配合。 [0064] and, on the needle shank portion 4 between the support structure 14 and the cap 8 is also provided with a resilient sleeve member, the resilient element is embodied as a compression spring 20, since only the needle shaft 4 is provided with side walls Backward supporting portion 14 enters the central opening of the check valve, and a width greater than the diameter constraining structure 14 of the central support portion opening, the assembly can not withdraw the needle shaft 4, so that the biasing force of the compression spring 20 forces the needle shaft 4 (i.e. 8 blocks) movement toward the distal end 14 relative to the support structure, so that the cap structure 8 is connected to the piercing member placement device 711 on the sheath mating ferrule. 此设计使本实例输液针可以与不同尺寸的留置器件的穿刺式连接件7可靠地连接,避免本实例输液针与留置器件的穿刺式连接件7装配地太紧或太松。 This design allows the present example, the infusion needle member 7 may be connected reliably connected to the indwelling needle catheter device of different sizes, to avoid piercing the present example, indwelling infusion needle device is connected to the element 7 is fitted too tight or too loose.

[0065] 所述两卡钩15的前端上各设有一环形的护翼21,这两环形护翼21处于同一圆形轨迹上,并围绕针管3前端的针尖分布。 [0065] The front end of each of the hooks 15 is provided with an annular flap 21, two annular flaps 21 are on the same circular path, and the distal tip of the needle tube 3 distributed around. 两卡钩15及两环形护翼21将针管3前端的针尖包围保护起来,使人员不会误碰针尖而刺伤。 Two hooks 15 and two flaps 21 ring 3 surrounds the distal tip of the needle tube protected, so that personnel will not inadvertently touching the puncture needle.

[0066] 本实施例输液针与留置器件的穿刺式连接件7的装配及分离过程,见附图11所示。 [0066] The present embodiment the infusion needle piercing indwelling device connector assembly and separation process. 7, see FIG. 11. 附图11中的(a)图表示可将本实施例输液针按箭头方向穿刺于留置器件的穿刺式连接件7上。 The figures 11 (a) represents the embodiment of FIG infusion needle puncture of the present embodiment in the direction of arrow indwelling piercing member 7 is connected to the device. 附图11中的(b)图表示已将本实施例输液针穿刺连接于留置器件的穿刺式连接件7上,穿刺式连接件护套11套于留置器件的穿刺式连接件7端部,盖帽结构8已可靠地经穿刺式连接件护套卡套于留置器件的穿刺式连接件7的端部上,成功限制针柄相对留置器件穿刺式连接件7作侧向运动。 The figures 11 (b) in FIG embodiment showing the infusion needle has been connected to the indwelling device according to the present embodiment of the piercing member 7 is connected, the piercing member connector sleeve piercing sheath 11 to the connector retention devices 7 end portion, cap structure 8 is securely connected to the jacket piercing member through the ferrule retained in the connection device on the end of the piercing member 7 is relatively limited success indwelling needle handle device piercing member 7 is connected for lateral movement. 而卡锁结构中的卡钩15的钩部16钩挂于留置器件的穿刺式连接件7上,从而本实施例输液针被牢牢锁定于留置器件的穿刺式连接件7上,与留置器件的穿刺式连接件件7连接成一体。 The locking structure of the hook 16 hooks the hook portion 15 is held on the connector retention devices piercing member 7, thereby embodiment the infusion needle is firmly locked to the retention device of the present embodiment of the piercing member 7 is connected with the retention device the piercing member 7 is connected to the connecting member integrally. 若要解锁,需要按图中的箭头方现按压解锁手柄19。 To unlock, it is necessary according to the arrow in FIG. 19 now presses the unlocking lever. 附图11中的(c)图表示按压了解锁手柄19使两卡钩前端张开后,并将本实施例输液针从留置器件的穿刺式连接件7上拔下,而穿刺式连接件护套11被继续留置覆盖于留置器件的穿刺式连接件7的端部上,对留置器件的穿刺式连接件7的端部继续保护。 The figures 11 (c) of FIG. 19 showing the release lever is pressed so that the front end of the two open hooks, and the infusion needle embodiment of the present embodiment Pull the connecting member 7 from piercing indwelling devices, while retaining the piercing member connector sleeve 11 continues to be retained to cover the piercing device is connected to an indwelling member end 7, the end portion of the piercing member 7 is connected to indwelling devices continue to protect.

[0067] 实施例七:参见附图12所示, [0067] Example VII: see FIG. 12,

[0068] 一次性使用输液针,由针管3、固设于针管3后部的针柄4、针柄4上套装的导管5以及导管5末端连接的连接座组成。 [0068] The disposable infusion needle, the needle tube 3, fixed to the rear portion of the needle shaft 3 needle 4, the needle shaft 4 set on the conduit 5 and the conduit 5 connecting base composition terminus.

[0069] 所述针柄4上设有作用于留置器件的穿刺式连接件7的,限制针柄4相对留置器件的穿刺式连接件7作侧向运动的限位结构。 It provided acting on [0069] the needle shaft 4 in the connector retention devices piercing member 7 to restrict the indwelling needle shaft 4 relative to the piercing device connector 7 for limiting lateral movement of the structure. 具体该限位结构为针柄4前端上朝向留置器件的穿刺式连接件7设置的一抵靠面6。 An abutment surface 6 of the concrete structure limiting the indwelling device toward the distal end of the needle piercing shank 4 connecting member 7 disposed.

[0070] 并且,所述针管3上还穿套设有一穿刺式连接件护套11,该穿刺式连接件护套11的开口朝向前端,其内腔与穿刺式连接件7的端部相匹配,穿刺式连接件护套11的后端面抵靠于所述抵靠面6上。 [0070] Further, the sleeve 3 is also provided with a piercing through the connector member 11 of the needle sheath tube, connected to the piercing member 11 toward the distal opening of the sheath, its lumen connector end of the piercing member 7 matches , piercing the sheath member 11 connected to the rear end surface abuts against said abutting against the upper surface 6.

[0071]当本实施例输液针与留置器件的穿刺式连接件7装配后,所述抵靠面6在针管3轴向上经穿刺式连接件护套11与留置器件的穿刺式连接件7的端部相抵靠达到定位的作用。 [0071] When the piercing needle according to the present embodiment indwelling infusion device embodiment connecting element 7 is fitted, via the abutment surface 6 jacket piercing member piercing connector retention devices 11 and connecting member 7 in the axial direction of the needle tube 3 reaches the end portion abuts against the positioning effect. 为了增加稳固性,抵靠面6可设计的面积较大。 In order to increase stability, abutment surface 6 may be designed in a large area. 在针管3从留置器件穿刺式连接件7上拔出后,穿刺式连接件护套11可继续留置覆盖于留置器件的穿刺式连接件7上。 After the needle tube 3 is connected to the punching device 7 indwelling piercing, the piercing member sheath connector 11 can continue to cover the catheter indwelling device piercing member 7 is connected. 穿刺式连接件护套11的内部侧面上设有防滑线状突起或点状突起12,以增加摩擦力。 Piercing member is provided on the inner side of the connector 11 of the sheath or dot slip projections linear protrusions 12 to increase friction.

[0072] 并且,所述针柄4上还设有限制针柄4沿轴向脱离留置器件的穿刺式连接件7的卡锁结构,该卡锁结构具体是由一支撑部14以及支撑部14上的两个卡钩15组成,所述支撑部14与针柄4为一体固定连接,支撑部14的前侧端面即作为所述抵靠面6。 [0072] Further, the shank of the needle 4 further restricts the needle shaft 4 in the axial direction of the piercing device from the catheter connector member detent structure 7, the locking structure is formed by a concrete support portion 14 and a support portion 14 two hooks 15 on the composition of the support portion 14 integrally with the needle shaft 4 is fixedly connected to the front end surface of the supporting portion 14, i.e., as the abutment surface 6. 两卡钩15在支撑部14上绕针管3的轴心均布,且每个卡钩15的前端朝前延伸伸出,其朝前的延伸端上内设钩部16,而每个卡钩15的中部与支撑部14连接形成支点,且两卡钩15的后端还向后延伸作为解锁手柄19。 Two hooks 15 on the support portion 14 about the axis of the needle tube 3 is uniform, and each end of the card projecting hook 15 extending forward, its forward end equipped with a hook portion 16 extends, and each hook the central portion 15 of the support 14 are connected to form a fulcrum, and the rear end of the hook 15 two cards also as release lever 19 extends rearward. 两卡钩15的钩部16构成一作用于留置器件的穿刺式连接件7的爪部,即当输液针与留置器件的穿刺式连接件7结合后,两卡钩15的钩部16钩挂于留置器件的穿刺式连接件7上,以此达到限制针柄4沿轴向相对脱离留置器件的穿刺式连接件7的锁定作用。 Hook hooks 15 of 16 constitutes an act on indwelling devices piercing connector pawl portions 7, i.e. after 7 binding piercing connector infusion needle indwelling device, the hook portion two hooks 15, 16 hook indwelling device in the piercing member 7 is connected, in order to achieve the locking action limiting member connecting the needle shaft 4 departing from the relative axial retention of the piercing device 7. 而当要解锁时,只要用两指挤压两个卡钩15后端的解锁手柄19,即可使两卡钩15的前端张开,使两卡钩15的倒钩部卡钩16脱离开留置器件的穿刺式连接件7,从而留置器件的穿刺式连接件7可以方便地从爪部中脱出。 When To unlock, as long as the two fingers pressing two rear hooks 15 release lever 19, to open the front end so that the hooks 15 of the hook portion two latching barb 16 of hook 15 disengaged indwelling piercing connecting device 7, so that piercing member 7 connected to the indwelling device can be easily disengaged from the claw.

[0073] 所述两卡钩15的前端上各设有一环形的护翼21,这两环形护翼21处于同一圆形轨迹上,并围绕针管3前端的针尖分布。 [0073] The front end of each of the hooks 15 is provided with an annular flap 21, two annular flaps 21 are on the same circular path, and the distal tip of the needle tube 3 distributed around. 两卡钩15及两环形护翼21将针管3前端的针尖包围保护起来,使人们不会再误碰针尖而刺伤。 Two needle hooks two annular flaps 15 and 21 to surround the distal end of the needle tube 3 protected, so that people will not inadvertently touching the puncture needle.

[0074] 上述实例只为说明本实用新型的技术构思及特点,其目的在于让熟悉此项技术的人能够了解本实用新型的内容并据以实施,并不能以此限制本实用新型的保护范围。 [0074] the above examples illustrate the present invention and the characteristics of the technical concept, its only purpose is to let people skilled in the art to understand the invention and data content to implement, and does not limit the scope of this utility model protection . 凡根据本实用新型精神实质所做的等效变换或修饰,都应涵盖在本实用新型的保护范围之内。 Where, under the spirit of the present invention is made equivalent transformation or modification shall fall within the scope of protection of the present invention.

Claims (10)

1. 一次性使用输液针,包括针管以及设置于针管后部的针柄,其特征在于:所述针柄上设有作用于留置器件的穿刺式连接件的,限制针柄相对留置器件的穿刺式连接件作侧向运动的限位结构。 1. disposable infusion needle, comprising a needle cannula and a needle disposed in the rear portion of the shank of the needle cannula, wherein: said connecting member is provided in the piercing action of piercing indwelling devices, limiting the indwelling needle shaft opposite the needle handle device connector member for limiting lateral movement of the structure.
2.根据权利要求I所述的一次性使用输液针,其特征在于:所述限位结构包括针柄朝向留置器件的穿刺式连接件设置的一抵靠面或不在一直线上的至少三个抵靠点,这一抵靠面或不在一直线上的至少三个抵靠点在针管轴向上与留置器件的穿刺式连接件端面或其端面覆盖物抵靠配合。 The disposable infusion needle according to claim I, wherein: said limiting structure comprises a connector abutment surface piercing member toward the indwelling needle shaft means disposed out of alignment or at least three point abutment, the abutment surface out of alignment or at least three abutment points or a connection end face thereof abuts against the end face of cover fitted in the axial direction of the needle piercing tube indwelling devices.
3.根据权利要求2所述的一次性使用输液针,其特征在于:所述限位结构为针柄上朝向留置器件的穿刺式连接件端面的一盖帽结构,该盖帽结构由一垂直于针管轴向的抵靠面以及该抵靠面外周向前端突起的一圈凸边构成;所述盖帽结构的大小与留置器件的穿刺式连接件端部或其端部覆盖物大小相匹配,且盖帽结构用于卡套于留置器件的穿刺式连接件端部或其端部覆盖物上,其抵靠面与留置器件的穿刺式连接件端面或其端部覆盖物相抵靠,其一圈凸边的内表面与留置器件的穿刺式连接件端部或其端部覆盖物的外周面抵靠。 The disposable infusion needle according to claim 2, wherein: said retaining structure is a structure of a cap piercing connector retention means toward the upper end surface of the needle shaft, which is perpendicular to the cap structure of needle cannula the axial abutment surface and abuts against the outer surface of the circumferential circle convex toward the distal end side protrusion configured; piercing connector retention devices of the size of the end cap structure or a portion of the end cover matches the size and cap structures for placement in the ferrule piercing device connector member end portion thereof covering the end portion, which abutment surface piercing indwelling device connector end face thereof abuts against an end portion of the cover, which flange circle an outer circumferential surface of the piercing member end portion connected to an end portion thereof covering the inner surface of the catheter against the device.
4.根据权利要求I所述的一次性使用输液针,其特征在于:所述限位结构由针柄上的一个轴向抵靠点以及至少三个侧向抵靠点组成,或者所述限位结构由针柄上的两个轴向的抵靠点和与这两个轴向抵靠点不在同一平面上的至少两个侧向抵靠点组成;轴向抵靠点沿针管轴向与留置器件的穿刺式连接件端面或其端面覆盖物抵靠配合,而侧向抵靠点在针管的周向上均布,且在针管径向上与留置器件的穿刺式连接件抵靠配合或与留置器件的穿刺式连接件上的端面覆盖物抵靠配合。 The disposable infusion needle according to claim I, wherein: said retaining structure consists of a needle shaft in the axial direction against the point, and at least three lateral abutment point composition, or a limited structure consists of two axially abutting position on the needle shaft and a point on the two axial abutment point is not in the same plane on the at least two lateral abutment dots; axial abutment axially along the needle point and tube piercing connector retention devices or the end face thereof abuts against the mating end surface cover, the lateral abutment points are distributed in the circumferential direction of the needle tube, and the diameter of the needle piercing connector member upwardly against the retention means cooperate with or piercing end surface on the cover member placement device connector mating abutment.
5.根据权利要求1-4中任一项所述的一次性使用输液针,其特征在于:所述针柄上设有限制针柄沿轴向脱离留置器件的穿刺式连接件的卡锁结构。 Disposable infusion needle according to any one of claims 1 to 4, wherein: said locking structure is provided to limit the needle shaft in the axial direction of the piercing device from the catheter connector on the needle shaft .
6.根据权利要求5所述的一次性使用输液针,其特征在于:所述卡锁结构由一支撑部以及支撑部向前伸出的多个卡钩组成,所述支撑部设于针柄上,多个卡钩在支撑部上绕针管的轴心均布,其朝前的延伸端上内设钩部;多个卡钩的钩部构成一作用于留置器件的穿刺式连接件的爪部。 The disposable infusion needle according to claim 5, wherein: the plurality of hooks of the latching structure composed of a supporting portion and a support portion projecting forwardly of the composition, the support portion provided on the needle shaft the axis, about a plurality of needle hooks on the support portions uniformly distributed, its forwardly extending end portion of the hook features; a plurality of hooks constituting the hook pawl member is operatively connected to a piercing device indwelling unit.
7.根据权利要求6所述的一次性使用输液针,其特征在于:所述卡钩为左右两个,这两卡钩的前端内设所述钩部,而其中部与支撑部连接形成支点,且两卡钩的后端还向后延伸作为解锁手柄。 The disposable infusion needle according to claim 6, wherein: the two cards, the front end of the hook portion of the hook is equipped with two left and right hook, and wherein the connecting portion is formed with a fulcrum supporting portion and two rear hooks extending rearwardly further as the release lever.
8.根据权利要求7所述的一次性使用输液针,其特征在于:所述卡锁结构的支撑部中心开孔,支撑部以该孔滑动穿套于所述针柄上;所述支撑部与针柄间作用有弹性元件,该弹性元件的作用力迫使针柄相对支撑部朝前端运动,使限位结构作用于留置器件的穿刺式连接件上。 The disposable infusion needle according to claim 7, wherein: the support portion of the central opening of the latching mechanism, the supporting portion of the bore to slidably sleeved on said needle shank; the support portion acting between the shank and the needle elastic member, urging force of the resilient member forces the needle shaft movement relative to the support portion toward the front end, the stopper structure is applied to the piercing member connector retention devices.
9.根据权利要求6所述的一次性使用输液针,其特征在于:所述卡钩的朝前延伸端超过针管的前端,或者卡钩上设有一围绕针管前端分布的环形的护翼。 9. The disposable infusion needle according to claim 6, wherein: said card front end hook extending forward over the needle end of the tube, card or a hook provided with flaps around the annular distribution tube distal end of the needle.
10.根据权利要求1-4中任一项所述的一次性使用输液针,其特征在于:所述针管上还穿套设有一穿刺式连接件护套,该穿刺式连接件护套的开口朝向前端,其内腔与留置器件的穿刺式连接件的端部相匹配;在针管从留置器件的穿刺式连接件上拔出后,穿刺式连接件护套可继续留置覆盖于穿刺式连接件上。 According to claims 1-4 disposable infusion needle as claimed in, characterized in that: said needle cannula is also provided with a sleeved jacket piercing connector member, the connector member piercing an opening of the sheath toward the distal end portion of which the indwelling needle catheter lumen connector device match; the needle is pulled out from the puncture device connector retention member, piercing connecting member may continue catheter sheath covering the piercing connector on.
CN 201220318493 2011-09-13 2012-07-04 Disposable transfusion needle CN202761816U (en)

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CN 201220318493 CN202761816U (en) 2011-09-13 2012-07-04 Disposable transfusion needle

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CN 201220318494 CN202761822U (en) 2011-09-13 2012-07-04 Transfusion needle suitable for butt jointed puncture-type connecting part of remaining device
CN 201210227642 CN102698341B (en) 2011-09-13 2012-07-04 Transfusion needle applicable to butt joint with punctured-type connection piece of retention device
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CN 201210227641 CN102698340B (en) 2011-09-13 2012-07-04 Disposable transfusion needle

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CN102698340A (en) * 2011-09-13 2012-10-03 张焕娥 Disposable transfusion needle
CN102698340B (en) 2011-09-13 2013-08-07 张焕娥 Disposable transfusion needle

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CN102698341A (en) 2012-10-03
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CN102698340B (en) 2013-08-07
CN102698340A (en) 2012-10-03

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