CN1193804C - Needle tip protection helmet assembly - Google Patents

Abstract

Translated fromChinese

本发明公开了一种针尖防护安全帽组件(100)，包括：针尖顶盖(110)，其由中空部件构成，一端开口可接收针头而另一端被封闭但留有一孔，针头可从该孔中穿过；可折伸构架(130)，其有一近端和一远端；杯座(150)，其将针尖防护安全帽组件与注射器的针头毂连接。其中可折伸构架的近端与杯座相连而其远端则与针尖顶盖相连。所述组件还包括一盖子用来封闭顶盖的开口端，盖子上有一个能让针头从中穿过的孔，从而针头能穿过该盖子上的孔以及针尖顶盖上的孔，直到针尖通过封闭了的顶盖端壁的内侧，进到一个防护位，在该位置上针尖不能穿过顶盖上的孔。

The present invention discloses a needle tip protective safety cap assembly (100), comprising: a needle tip top cover (110), which is composed of a hollow component, one end of which is open to receive a needle tip and the other end is closed but has a hole through which the needle tip can pass; a foldable frame (130), which has a proximal end and a distal end; and a cup seat (150), which connects the needle tip protective safety cap assembly to the needle hub of a syringe. The proximal end of the foldable frame is connected to the cup seat and the distal end is connected to the needle tip top cover. The assembly also includes a cover for closing the open end of the top cover, and the cover has a hole through which the needle tip can pass, so that the needle tip can pass through the hole on the cover and the hole on the needle tip top cover until the needle tip passes through the inner side of the closed end wall of the top cover and enters a protective position, at which the needle tip cannot pass through the hole on the top cover.

Description

Translated fromChinese

针尖防护安全帽组件Needle tip protection helmet assembly

发明的领域field of invention

本发明涉及皮下注射器的针头，本发明特别涉及皮下注射器的针头在使用后处理的时候，将注射器针头的针尖盖住以防止意外扎人的装置。The present invention relates to needles of hypodermic syringes, and in particular to a device for covering the needle point of the hypodermic needles to prevent accidental sticking when the needles of hypodermic syringes are disposed of after use.

发明的背景background of the invention

现今，一次性皮下注射器针头已成为健康护理中一个不可分割的部分。通常的皮下注射器针头包括一个可更换的塑料针套，该针套在使用前去掉，并在处理前再放回原处。这种将针帽放回的行为使得用者、通常的医院工作人员或医护人员有被针头意外扎伤的可能。被针意外扎伤可能会使疾病穿过人体的第一道防线——皮肤。由于一些疾病如HIV目前是不可治愈的并能最终将人致死，因此将使用过的针尖暴露出来并且每更换一次针套都会对生命构成潜在的威胁。尽管现有的设备已出现过这个问题，但直到现在还没有一种经济有效的设备。Today, disposable hypodermic needles are an integral part of healthcare. A typical hypodermic needle includes a replaceable plastic sleeve that is removed before use and put back on before disposal. This act of putting back the needle cap creates the potential for accidental needle stick injuries by the user, typically hospital staff or medical personnel. Accidental needle sticks can allow disease to pass through the body's first line of defense - the skin. Since some diseases such as HIV are currently incurable and can eventually kill a person, exposing the used needle tip and changing the needle cover every time is a potential threat to life. Although this problem has been encountered with existing devices, until now there has been no cost-effective device.

发明概述Summary of the invention

本发明提供一种针尖防护安全帽组件，其在注射器使用完后用来将注射器的针尖安全地盖住并防护起来。该组件优选包括：一个顶盖，其由一伸长的中空部件构成，该部件的一端为开口状用来将针头收在其中，另一端几乎被一端壁封闭，端壁上有一孔，针头可从该孔中穿过；通常还有一盖子将顶盖的开口端封闭，盖子上有一个能让针头从中穿过的孔，这样，针头就能穿过盖子的孔和盖壁上的孔。该组件还包括：一个可折伸构架，该构架有一近端和一远端；一个杯座，其将针尖防护安全帽组件与注射器的针头毂连接。其中可折伸构架的近端与杯座相连而其远端则与针尖顶盖相连。针头能穿过上述盖子上的孔以及针尖顶盖上的孔，直到针尖通过封闭了的顶盖端壁的内侧，进到一个防护位，在该位置上针尖不能穿过顶盖上的孔。The invention provides a needle point protection safety cap assembly, which is used to safely cover and protect the needle point of the syringe after use. The assembly preferably comprises: a cap consisting of an elongate hollow member open at one end for receiving the needle and nearly closed at the other end by an end wall with a hole through which the needle can pass through. There is usually a cover to close the open end of the top cover, and the cover has a hole that allows the needle to pass therethrough, so that the needle can pass through the hole in the cover and the hole in the wall of the cover. The assembly also includes: a collapsible frame with a proximal end and a distal end; and a cup that connects the needle tip shield assembly to the needle hub of the syringe. Wherein the proximal end of the foldable and stretchable frame is connected with the cup holder and the far end is connected with the needle point top cover. The needle can pass through the hole in the cover and the hole in the needle point cap until the needle point passes through the inside of the closed top cap end wall into a guard position where the needle point cannot pass through the hole in the top cap.

当用注射器注射时，针尖必须从端壁的孔中伸出。可将一个手动的可伸长构架连接到顶盖上从而在准备处理注射器时，沿着针头移动顶盖。When injecting with a syringe, the needle tip must protrude from the hole in the end wall. A manually extendable frame can be attached to the cap to move the cap along the needle when the syringe is ready for disposal.

注射后即可对注射器进行处理，这时将顶盖滑到其端壁超出针尖顶点的位置。然后顶盖由盖子上的孔支撑并绕着盖孔旋转直到针尖穿过封闭的顶盖端壁的内侧进入一防护位，在该位置上针尖将不能穿过顶盖上的孔。The syringe can be disposed of after injection by sliding the cap so that its end wall extends beyond the apex of the needle tip. The cap is then supported by the hole in the cover and rotated around the cap hole until the needle tip passes through the inside of the closed top cap end wall into a guard position where the needle point will not pass through the hole in the cap.

针尖顶盖组件中使用了多个部件来给用户提供触觉和听觉的反馈信息指示针尖顶盖已成功展开。在可伸长构架从非作用位开始对中时，在使用前用来限定构架的闩臂件“卡入”构架上的狭槽；在构架完全展开时，构架上的突起将卡在针杆周边上。这种触觉和听觉上的反馈信息为用户提供了针头已安全、不再需要对针进行视觉检查的保证。Several components are used in the needle tip cap assembly to provide the user with tactile and audible feedback indicating successful deployment of the needle point cap. When the extendable frame is centered from the inactive position, the latch arms that define the frame prior to use "snap" into the slots on the frame; when the frame is fully extended, the protrusions on the frame snap into place on the needle bar on the perimeter. This tactile and audible feedback provides the user with assurance that the needle is safe and visual inspection of the needle is no longer required.

闩臂及狭槽，除了给用户提供触觉反馈信息外，还能在开始展开针头护罩时保证用户手指有足够的力量完成安装。当将杆臂拉出狭槽时，为了克服杆臂的阻力，用户必须对可伸长构架提供足够的力量，这样，当杆臂离开狭槽时，展开在一个方向上完成，用户不需额外的注意。The latch arms and slots, in addition to providing tactile feedback to the user, allow the user to have sufficient finger strength to complete installation when starting to deploy the needle shield. When pulling the lever arm out of the slot, in order to overcome the resistance of the lever arm, the user must provide enough force to the extendable frame, so that when the lever arm leaves the slot, the deployment is completed in one direction, and the user does not need additional force. attention.

如果针头护套不以某种方式适当限定起来，那么由于用户给针头护套加力方向的问题，就有可能使针头护套被完全推离皮下注射器，因此优选实施例中，针头护套采用了一个环形狭槽与皮下注射器上对应的环形圈啮合。在某些场合下，保证皮下注射器顶端套管开口位于合适的方向也是一件很重要的事，因此优选实施例还可加一个长槽与皮下注射器上对应的肋啮合。这时，针套就可提供一个套管方向的附加指示。If the needle shield is not properly restrained in some way, it is possible for the needle shield to be completely pushed away from the hypodermic syringe due to the direction in which the user applies force to the needle shield. Therefore, in the preferred embodiment, the needle shield uses An annular slot engages a corresponding annular ring on the hypodermic syringe. In some cases it is also important to ensure that the hypodermic tip cannula opening is in the proper orientation, so the preferred embodiment also incorporates an elongated slot to engage a corresponding rib on the hypodermic syringe. In this case, the needle guard provides an additional indication of cannula orientation.

优选实施例是采用弹性塑料一体成形的形式，从而使加工更为经济。The preferred embodiment is in the form of a single piece of elastic plastic, thus making the processing more economical.

附图简要说明Brief description of the drawings

图1是本发明针尖防护安全帽组件优选实施例一侧的透视图；Fig. 1 is the perspective view of one side of the preferred embodiment of the needle point protection helmet assembly of the present invention;

图2是图1中实施例翻过来一侧的透视图；Fig. 2 is a perspective view of the embodiment turned over in Fig. 1;

图3是图1中沿3-3处的横截面图；Fig. 3 is a cross-sectional view along 3-3 in Fig. 1;

图4是针尖防护安全帽组件准备与注射器连接时，图1中3-3处的横截面图；Fig. 4 is a cross-sectional view at 3-3 in Fig. 1 when the needle tip protection safety cap assembly is ready to be connected with the syringe;

图5是图1中优选实施例的横截面图，其展示了针尖防护安全帽组件装在注射器上的样子；Fig. 5 is a cross-sectional view of the preferred embodiment in Fig. 1, which shows the appearance of the needle point protection safety cap assembly mounted on the syringe;

图6是图1中优选实施例的横截面图，其展示了针尖防护安全帽组件装在注射器上，同时针套将针盖住的样子；Fig. 6 is a cross-sectional view of the preferred embodiment in Fig. 1, which shows the needle point protection safety cap assembly installed on the syringe, while the needle cover covers the needle;

图7是图1中优选实施例的横截面图，其展示了针尖防护安全帽组件装在注射器上、去掉针套，注射器准备注射的样子；Fig. 7 is a cross-sectional view of the preferred embodiment in Fig. 1, which shows that the needle point protection safety cap assembly is installed on the syringe, the needle cover is removed, and the syringe is ready for injection;

图8是图1中优选实施例的横截面图，其展示了针尖防护安全帽组件装在注射器上的样子，还显示了用户如何驱动帽组件以盖住针尖的样子；Figure 8 is a cross-sectional view of the preferred embodiment of Figure 1 showing the needle tip shielding safety cap assembly on the syringe and how the cap assembly is actuated by the user to cover the needle tip;

图9是图1中优选实施例的横截面图，其展示了针尖防护安全帽组件装在注射器上的样子，还描述了使用后针尖帽旋转盖住针尖并固定在防护位的样子；Fig. 9 is a cross-sectional view of the preferred embodiment in Fig. 1, which shows how the needle point protection safety cap assembly is installed on the syringe, and also describes how the needle point cap rotates to cover the needle point and is fixed in the protective position after use;

图10是图9中沿10-10处的横截面图，其展示了在进行防护时将针尖防护安全帽固定在针头上的夹紧件。Fig. 10 is a cross-sectional view taken along line 10-10 in Fig. 9, showing the clamping member securing the needle tip shielding safety cap to the needle during shielding.

图11是针尖防护安全帽组件另一实施例一侧的透视图；Fig. 11 is a perspective view of another embodiment of the needle point protection safety cap assembly;

图12是图11中实施例翻过来一侧的透视图；Figure 12 is a perspective view of one side of the embodiment in Figure 11 turned over;

图13是图11中沿13-13处的横截面图；Fig. 13 is a cross-sectional view along 13-13 in Fig. 11;

图14是另一实施例的针尖防护安全帽组件准备与注射器连接时，图11中沿13-13处的横截面图；Fig. 14 is a cross-sectional view along 13-13 in Fig. 11 when the needle tip protection safety cap assembly of another embodiment is ready to be connected with the syringe;

图15是图11所示另一实施例的横截面图，其展示了针尖连接在注射器上的样子；Figure 15 is a cross-sectional view of another embodiment shown in Figure 11, showing the needle tip attached to the syringe;

图16是图11另一实施例的横截面图，其展示了针尖防护安全帽组件装在注射器上并且针套将针盖住时的样子。16 is a cross-sectional view of the alternative embodiment of FIG. 11 showing the needle tip shield assembly mounted on the syringe with the needle guard covering the needle.

详细描述A detailed description

采用本发明的针尖防护安全帽组件后，就可根本消除针在用后意外扎人的事情。为了防止意外扎人，本发明采用一个盖、帽或杯形件来盖住针尖或将针尖在使用后收在一个防护位中。After adopting the needle point protective safety cap assembly of the present invention, the accident of accidental needle sticking after use can be basically eliminated. To prevent accidental sticking, the present invention employs a cap, cap or cup to cover the needle point or store the needle point in a protective position after use.

针尖的顶盖上有一个孔，这样顶盖可在注射前沿着针头滑到远离针尖的收缩位，在注射后再沿着针头滑回盖住针尖。只要针尖一注射完并回到顶盖中，就将顶盖旋转或扭转，这样针尖就不会从顶盖上的孔再冒出来。顶盖的端头形成一个容腔，以固定针头的端部，防止针穿过端壁中的孔再冒出来。The needle tip cap has a hole so that the cap can be slid along the needle to a retracted position away from the needle tip before injection, and then slid back along the needle to cover the needle tip after injection. As soon as the needle tip is injected and back into the cap, turn or twist the cap so that the needle tip does not come out of the hole in the cap again. The end of the cap forms a cavity to hold the end of the needle and prevent the needle from reemerging through the hole in the end wall.

针尖顶盖通常设计成能与一般针套相接的结构，这样，针尖防护安全帽组件在针套安装以及针头售出前装好。因此在出售针头时，针尖顶盖已缩到远离针尖的位置而针套则以通常的形式将针套住。The needle point top cover is usually designed to be connected to a common needle cover, so that the needle point protective safety cap assembly is assembled before the needle cover is installed and the needle is sold. The needle is therefore sold with the tip cap retracted away from the needle tip and the needle guard covering the needle in the usual fashion.

在准备注射的过程中，将针套去掉，然后就能用注射器以通常的方式来注射。注射后针尖顶盖沿着整个针头滑过、旋转以防止针尖再冒出来。In preparation for the injection, the needle cover is removed and the syringe can be used to inject in the usual way. After injection, the needle tip cover slides and rotates along the entire needle to prevent the needle tip from coming out again.

为了方便针尖顶盖的旋转、为了有一个装置使顶盖沿着针更加方便地滑动、也为了方便与针头毂或注射器的连接，针尖防护安全帽组件还可有一个可折叠伸长部分或称可折伸的构架连接在针尖顶盖上。该可折叠伸长部分或称可折伸构架可转而与一个连接件相连，而连接件适用于以不可拆的形式与针头毂相连。针头毂再转而预装在注射器上，或者在注射或从病人抽取体液前将注射器与针头毂相接。In order to facilitate the rotation of the needle tip cap, in order to have a mechanism to make the cap slide along the needle more conveniently, and to facilitate the connection with the needle hub or syringe, the needle tip shield assembly can also have a foldable extension or extension. The collapsible frame is attached to the tip top cover. The collapsible elongate portion or collapsible frame is in turn connected to a connector adapted to be non-detachably connected to the needle hub. The needle hub is in turn preloaded on the syringe, or the syringe is attached to the needle hub prior to injecting or withdrawing bodily fluids from the patient.

为了有助于将针尖顶盖保持在针头毂上，优选实施例中加入了一个环形凹槽，其与针头毂上的环形圈相互啮合。To help retain the tip cap on the needle hub, the preferred embodiment incorporates an annular groove which interengages with an annular ring on the needle hub.

在注射前去掉针套的过程中，构架通常与连接件一起将针头顶盖保持在远离针尖的收缩位。优选实施例中，连接件上的一个突起部与构架上的一个槽相接，在操作针头护罩时，突起部的增大部分卡进槽内。注射后，手动或手推构架使针尖顶盖松开、滑向针尖并最终盖住针尖。During removal of the needle shield prior to injection, the frame, usually together with the connector, holds the needle cap in a retracted position away from the needle tip. In a preferred embodiment, a protrusion on the connector engages a slot in the frame, and the enlarged portion of the protrusion snaps into the slot when the needle shield is operated. After injection, the needle tip cap is released by hand or by pushing the frame, slides towards the needle tip, and finally caps the needle tip.

将针尖收到顶盖内后，对应于构架上的推动会有一个旋转。当针尖位于顶盖中时，如果继续推动构架，会使顶盖旋转。旋转后的顶盖通过将针尖保持在顶盖端壁的容腔中来防止针尖从盖孔中再冒出来。After receiving the needle tip into the top cap, there is a rotation corresponding to the push on the frame. When the needle tip is in the cap, further pushing on the frame will cause the cap to rotate. The rotated top cap prevents the needle tip from re-emerging from the cap hole by keeping the needle tip in the cavity of the top cap end wall.

为了进一步将顶盖保持在旋转位上，通常会将构架锁定或固定到针杆上。将构架固定起来还可防止构架折叠起来以及顶盖沿着针杆滑回。这样就能进一步确保针尖不会再冒出。To further hold the top cap in the swivel position, the frame is usually locked or secured to the needle bar. Securing the frame also prevents the frame from collapsing and the top cover from sliding back along the needle bar. This can further ensure that the needle tip will not pop out again.

本优选实施例的安装Installation of the preferred embodiment

本发明的针尖防护安全帽组件100可通过一个单一的塑料件铸模加工出来以增加可靠性并降低加工和安装成本。尽管并非必须，但本发明的优选实施例就是采用单体的铸模塑料件。The needle tip shieldingheadgear assembly 100 of the present invention can be molded from a single plastic piece to increase reliability and reduce tooling and installation costs. Although not required, preferred embodiments of the present invention utilize a single piece of molded plastic.

本发明的设计是在使用针头前就完全装好，通常是在销售前就已装在针头上或注射器上。图1-5中的箭头显示的是该优选实施例的安装步骤。The present invention is designed to be completely assembled on the needle prior to use, usually on the needle or syringe prior to sale. The arrows in Figures 1-5 show the installation steps of this preferred embodiment.

为了装好优选实施例中的针尖防护安全帽组件，必须将注射器的连接件和针尖顶盖旋转到接收针头的位置。注射器连接件与构架柔性连接。为此，将注射器连接件或杯座150相对于构架130旋转约90度，这样针头就能沿着与伸开的构架130大致平行的方向穿过注射器连接件150。In order to assemble the needle tip shielding safety cap assembly of the preferred embodiment, the syringe adapter and needle point cap must be rotated into position to receive the needle. The syringe connector is flexibly connected to the frame. To do this, the syringe connector orcup holder 150 is rotated about 90 degrees relative to theframe 130 so that the needle passes through thesyringe connector 150 in a direction approximately parallel to theframe 130 being extended.

下一步，将一个与针尖顶盖110柔性连接的盖子(或称封闭件)118旋转后塞住或封住顶盖110。为了有助于将盖子保持在顶盖上，将盖子上的环形圈182与顶盖上的环形槽184啮合；圈和槽的横截面逐渐收缩从而使啮合更加容易，但这也使得圈和槽很难分开。In the next step, a cap (or closure) 118 flexibly connected to theneedle tip cap 110 is rotated to plug or seal thecap 110 . In order to help keep the lid on the top cover, theannular ring 182 on the cover is engaged with theannular groove 184 on the top cover; It's hard to separate.

然后旋转与构架130柔性连接的封闭顶盖110，从而使针头穿过顶盖上的孔和杯座(即注射器连接件)150上的孔。Theclosure cap 110 , which is flexibly connected to theframe 130 , is then rotated so that the needle passes through the hole in the cap and the hole in the cup holder (ie, syringe connector) 150 .

当顶盖处于收住针的位置时，构架或伸展段130开始在两段之间的柔性部分折叠或弯折，然后顶盖110沿着针杆滑离针尖。为了有利于上述操作，也为了在插入针头之前更好地固定杯座，将一个针套300置于顶盖110上从而可更方便操纵顶盖110。When the cap is in the needle-receiving position, the frame orstretch section 130 begins to fold or flex at the flexible portion between the two segments, and thecap 110 then slides along the shaft of the needle away from the needle tip. In order to facilitate the above operation, and to better fix the cup holder before inserting the needle, a needle guard 300 is placed on thetop cover 110 so that thetop cover 110 can be manipulated more conveniently.

当顶盖110在针杆上滑动时，构架或可折伸部分130继续弯折。当顶盖紧靠在或与针头毂或注射器接触时，构架130与杯座(即注射器连接件)150一起可松开地将顶盖固定住。优选实施例中，注射器连接件上一个头部增大的突起192穿过构架上的狭缝194。突起上头部增大的尺寸在设计上要求在构架上施加适当的力就能使头部卡入狭缝。As thetop cover 110 slides over the needle bar, the frame orflexible portion 130 continues to flex.Frame 130 together with cup (ie, syringe attachment) 150 releasably secures the cap when the cap is abutted against or in contact with the needle hub or syringe. In the preferred embodiment, aprotrusion 192 with an enlarged head on the syringe connector passes through aslot 194 in the frame. The increased size of the head on the protrusion is by design such that a moderate amount of force is applied to the frame to snap the head into the slot.

针套300在将顶盖110滑下针杆时，也被安装上去用于销售。为了将针的护罩固定在针头毂上，优选实施例中在连接件的内面采用了环形槽186，它与针管上相应的环形圈206接合。环和槽的横截面呈锥形，从而使啮合更为容易，但这也使得环和槽很难分开。虽然，用户可手动将构架松开，但注射前将针套300去掉时，不要动固定好的顶盖110。The needle guard 300 is also installed for sale when thetop cover 110 is slid off the needle bar. To secure the needle shield to the needle hub, the preferred embodiment employs anannular groove 186 in the inner face of the connector which engages a corresponding annular ring 206 on the needle cannula. The cross-section of the ring and groove is tapered to make engagement easier, but it also makes it difficult to separate the ring and groove. Although the user can loosen the frame manually, the fixedtop cover 110 should not be moved when the needle cover 300 is removed before injection.

图1-10的优选实施例Preferred embodiment of Figures 1-10

图1-10展示了本发明针尖防护安全帽组件100的一个实施例。其优选采用一个单体塑料件来形成针尖防护安全帽组。图1和2所描述的是本优选针尖防护安全帽组从模子上取下来后两个不同侧面的样子。图3-10则展示了这个优选实施例准备使用时以及与注射器在实际使用时的样子。1-10 illustrate one embodiment of a needle tip shieldingsafety helmet assembly 100 of the present invention. It preferably utilizes one single piece of plastic to form the needle point protection hard hat set. What Figures 1 and 2 have described is the appearance of two different sides after the preferred needle point protection safety helmet set is taken off from the mould. Figures 3-10 show the preferred embodiment when ready for use and in actual use with the syringe.

回到图1和2，针尖防护组件100包括针尖顶盖(或称针尖帽或者杯形件或者是用来盖住针尖的针尖遮盖装置)110。顶盖110的形状为具有圆周壁的伸长件112。伸长件112的一端开口而另一端则几乎由底壁(或称端壁)116封上。Referring back to FIGS. 1 and 2 , the needletip shielding assembly 100 includes a needle tip cover (or called a needle tip cap or a cup or a needle tip covering device for covering the needle tip) 110 . Thetop cover 110 is in the shape of anelongate member 112 having a circumferential wall. One end of theextension member 112 is open and the other end is almost sealed by a bottom wall (or end wall) 116 .

在目前图1和2这个优选实施例中，顶盖110的底壁116上的孔(或称眼)114可使针头从中穿过。孔114位于底壁的偏心位置，而容腔126则占据了剩余的大部分壁面。一个杆臂(或称旋转装置)120与顶盖相连，当推动时，可使顶盖110相对针尖旋转从而防止针尖穿过孔114。In the presently preferred embodiment of FIGS. 1 and 2, a hole (or eye) 114 in thebottom wall 116 of thetop cover 110 allows a needle to pass therethrough. Thehole 114 is located off-center in the bottom wall, while thecavity 126 occupies most of the remaining wall. A lever arm (or rotating device) 120 is attached to the cap which, when pushed, rotates thecap 110 relative to the needle tip thereby preventing the needle tip from passing through thehole 114 .

图1和2还展示了盖子(或称封闭件或顶壁或)118，其可绕顶盖与盖子之间的连接部分旋转从而将顶盖110封闭。盖子(或称封闭装置)118上有一个孔(或称眼)122，可使针从中穿过。本实施例中，盖子(或称针杆啮合装置)118作为杠杆的支点与针头啮合。当针头穿过盖子上的孔122但未穿过底壁上的孔114时，盖子118与针头啮合并为顶盖的旋转提供一个支点。1 and 2 also show a cover (or closure or top wall or) 118 that is rotatable around the connection between the top cover and the cover to close thetop cover 110 . Cover (or closure) 118 has a hole (or eye) 122 through which a needle can pass. In this embodiment, the cover (or needle bar engaging means) 118 is used as a fulcrum of a lever to engage with the needle. When the needle passes through thehole 122 in the cover but not through thehole 114 in the bottom wall, thecover 118 engages the needle and provides a fulcrum for rotation of the top cover.

在图1和2所示的实施例中，针尖防护安全帽组件100应适于同针头毂或注射器相连。顶盖110与可折伸构架(或称可折部件或可折伸段)130相连，可折伸构架再与杯座150相连。杯座150用来将针尖防护安全组件与针头毂或注射器相连。在本优选实施例中，顶盖110与可折伸构架130之间采用直接连接的形式。In the embodiment shown in Figures 1 and 2, the needletip shield assembly 100 should be adapted to be attached to a needle hub or syringe. Thetop cover 110 is connected with a foldable frame (or called a foldable part or a foldable section) 130 , and the foldable frame is connected with acup holder 150 . Thecup holder 150 is used to attach the needle tip guard safety assembly to the needle hub or syringe. In this preferred embodiment, thetop cover 110 and thefoldable frame 130 are directly connected.

杯座150具有圆周壁152和底壁154。底壁154具有针从中穿过的孔156。在该特例中，设有板条158，其用来限定圆周壁152的内侧靠近底壁154处的通道，从而可使杯座150更为容易地连接到针头毂上。本实施例中还包括一对连接臂160，从杯座150靠近底壁154处延伸出来。连接臂160用来将杯座150连接在可折伸构架130上。连接臂160与可折伸构架130是柔性连接。Cup holder 150 has aperipheral wall 152 and abottom wall 154 . Thebottom wall 154 has ahole 156 through which the needle passes. In this particular example, aslat 158 is provided to define a channel on the inside of theperipheral wall 152 near thebottom wall 154, thereby allowing thecup holder 150 to be more easily attached to the needle hub. This embodiment also includes a pair of connectingarms 160 extending from thecup holder 150 near thebottom wall 154 . The connectingarm 160 is used to connect thecup holder 150 to thefoldable frame 130 . The connectingarm 160 is flexibly connected to thefoldable frame 130 .

优选实施例中的杯座150具有一个环形槽186与针头毂上相对的环形圈206接合。圈和槽的横截面呈锥形，从而使其接合更为容易，但分开很难。该优选实施例进一步包括一个长槽188，其与针管上相应的长凸起208相接合从而使针的护套能确定地旋转到与针孔220对齐的位置。Thecup holder 150 in the preferred embodiment has anannular groove 186 which engages an opposing annular ring 206 on the needle hub. The cross-section of the ring and groove is tapered, making it easier to join but difficult to separate. The preferred embodiment further includes anelongated slot 188 which engages a corresponding elongated projection 208 on the needle barrel to allow positive rotation of the needle shield into alignment with the needle bore 220 .

在目前这个优选实施例中，可折伸构架130有许多用处。其可用来将杯座(即注射器连接件)150与针尖顶盖110相连，并可用来可松开地将顶盖110固定在针尖的远端。其还可用来将针尖顶盖110滑下针杆，并有助于顶盖110围着针尖旋转。此外，其还有助于保持针尖顶盖110的旋转位。In the presently preferred embodiment, thecollapsible frame 130 serves a number of purposes. It can be used to attach the cup (ie, syringe attachment) 150 to theneedle tip cap 110 and can be used to releasably secure thecap 110 to the distal end of the needle tip. It can also be used to slide thetip cap 110 off the needle shaft and facilitate rotation of thecap 110 around the needle tip. In addition, it also helps to maintain the rotational position of thetip cap 110 .

如图1和2所示，可折伸段130，可包括一个叉骨(wishbone)形段132和一个下部段140。叉骨形段132具有两个臂134和一个座136。叉骨形段的臂134与杯座的连接臂160柔性连接。下部段140具有一个上端142和一个下端144。叉骨形段的座136与下部段140的上端142柔性相连。下部段的下端144与顶盖110柔性相连。有两个夹紧件148安装在下部段140上。叉骨形段132形成一个开口或称一个装置，当可折伸构架130弯折时，夹紧件148可从中穿过。这里还有一个装置，当可折伸构架130折起时，可使连接件上的突起192与狭缝194接合，这一点将在下面作更全面的描述。对此图6所示更为清楚。As shown in FIGS. 1 and 2 , theflexible section 130 may include awishbone section 132 and alower section 140 . The wishbone-shapedsegment 132 has twoarms 134 and aseat 136 . Thearm 134 of the wishbone section is flexibly connected to the connectingarm 160 of the cup holder.Lower section 140 has anupper end 142 and alower end 144 . Theseat 136 of the wishbone section is flexibly connected to theupper end 142 of thelower section 140 . Thelower end 144 of the lower section is flexibly connected to thetop cover 110 . There are two clampingmembers 148 mounted on thelower section 140 . Thewishbone section 132 defines an opening or means through which the clampingmember 148 passes when thecollapsible frame 130 is bent. There is also a means for engaging theprojections 192 on the connectors with theslots 194 when thecollapsible frame 130 is folded, as will be described more fully below. This is more clearly shown in Figure 6.

图2还展示了压力平台146，其最终与杆臂120接触并使顶盖110产生旋转。图8和图9从最佳的角度展示了顶盖110绕针尖旋转的情景，这一点将在后面作全面的讨论。FIG. 2 also shows thepressure platform 146 which ultimately contacts thelever arm 120 and causes thetop cover 110 to rotate. Figures 8 and 9 illustrate the rotation of thecap 110 around the needle tip from the best angles, which will be fully discussed later.

图2还展示了一对突出的夹紧件148，其从下部段140伸出，用作防护位锁定装置。针头在使用完后，夹紧件148用作一个将可折伸构架130固定在针杆上的装置。将可折伸构架130固定在针杆上可保证顶盖110保持在旋转位或扭转位，还可使顶盖110保持在防护位，这样顶盖110不会滑回到针杆上，将针尖暴露出来。Figure 2 also shows a pair of protrudingclips 148 extending from thelower section 140 for use as guard position locking means. After the needle has been used, the clampingmember 148 serves as a means for securing thecollapsible frame 130 to the needle shaft. Fixing the foldable andstretchable frame 130 on the needle bar can ensure that thetop cover 110 remains in the rotating or twisting position, and also keeps thetop cover 110 in the protective position, so that thetop cover 110 will not slide back on the needle bar, and the needle point exposed.

图9所示为夹紧件148与针杆啮合并将可折伸构架130固定在针杆上的情景。图10是针杆穿过夹紧件的横截面图，其示意出夹紧件与针杆啮合的情况。FIG. 9 shows the clampingmember 148 engaging with the needle bar and fixing thecollapsible frame 130 on the needle bar. Figure 10 is a cross-sectional view of the needle bar passing through the clamping member, which illustrates the engagement of the clamping member with the needle bar.

图3展示了杯座150是如何旋转从而为针头穿过杯座150以及为杯座150与注射器相连作准备的。板条158作为一个装置，在注射器与杯座中的针相连或分开时，可用来对针头进行定向并防止针在杯座中旋转。杯座(或称注射器连接件)150还具有一个头部增大了的突起192。突起可拆地与下部段140中的狭缝194啮合，从而当可折伸构架130如图6和图7弯折时，提供一个锁定装置。FIG. 3 shows how thecup holder 150 is rotated in preparation for the insertion of a needle through thecup holder 150 and for the attachment of thecup holder 150 to the syringe.Slat 158 serves as a means for orienting the needle and preventing rotation of the needle in the cup when the syringe is attached or disconnected from the needle in the cup. The cup holder (or syringe connector) 150 also has aprotrusion 192 with an enlarged head. The protrusion removably engages theslot 194 in thelower section 140 to provide a locking means when thecollapsible frame 130 is bent as shown in FIGS. 6 and 7 .

图3还展示了盖子118如何旋转并使顶盖110封闭形成图4所示腔128的情景。在本优选实施例中，盖子118上的孔(或称眼)122有一个部分倾斜的边124。部分倾斜的边124可使顶盖110如图9所示的那样更为容易地绕针尖旋转。FIG. 3 also shows how thecover 118 rotates and closes thetop cover 110 to form thecavity 128 shown in FIG. 4 . In the preferred embodiment, the aperture (or eye) 122 in thecover 118 has a partially sloped side 124 . The partially sloped sides 124 allow thecap 110 to more easily rotate about the needle tip as shown in FIG. 9 .

在图3所示优选实施例中，顶盖110具有一个紧靠着孔(或称眼)114的容腔126。其在顶盖110绕针尖旋转后，通过将针尖束缚住而有助于防止针尖从孔114意外地再次冒出。In the preferred embodiment shown in FIG. 3 , thetop cover 110 has acavity 126 adjacent to the hole (or eye) 114 . It helps prevent the needle tip from accidentally re-emerging from thehole 114 by trapping the needle tip after thecap 110 is rotated about the needle tip.

图4描述了杯座150旋转后的情况，并展示了针头插入的方向从而为针尖防护安全帽组件100与注射器相连作准备。图4还描述了封闭了的顶盖110中的腔128。在本优选实施例中腔128不仅将针尖盖住，还可收集从针尖流出的流体。FIG. 4 depicts the situation after thecup holder 150 is rotated, and shows the direction in which the needle is inserted in preparation for the connection of the needle tip protectionsafety cap assembly 100 to the syringe. FIG. 4 also depictscavity 128 intop cover 110 which is closed. In the preferred embodiment,lumen 128 not only covers the needle tip, but also collects fluid flowing from the needle tip.

图4中封闭了的顶盖110旁边的箭头指示出封闭了的顶盖110的旋转方向从而为针尖防护安全帽100与注射器的连接作准备。杯座150以及封闭了的顶盖110的旋转使得针头可穿过两者，从而为针尖防护安全帽组件100与注射器的连接作好准备。The arrow next to theclosed cap 110 in FIG. 4 indicates the direction of rotation of theclosed cap 110 in preparation for attachment of the needle tip shieldingsafety cap 100 to the syringe. Rotation of thecup holder 150 and theclosed cap 110 allows a needle to pass through both, thereby preparing the needle tip shieldingsafety cap assembly 100 for connection to the syringe.

图5描述了针尖防护安全帽组件100与注射器相接从而为接收针套300作准备的情况。尽管在本优选实施例中，其是连接在针头毂204上，但其也可连接在针筒202上。FIG. 5 depicts the needle tip shieldingsafety cap assembly 100 engaged with a syringe in preparation for receiving the needle guard 300 . Although in the preferred embodiment it is attached to theneedle hub 204, it could also be attached to thebarrel 202.

如图5所示，当装上针尖防护安全帽组件并为针套300的使用做好准备后，可折伸构架130开始弯折。图5还展示了可折伸构架130弯折时，其中一个夹紧件148将如何从叉骨形段132的臂134之间伸出的情景。As shown in FIG. 5 , when the needle tip protection safety cap assembly is installed and the needle sheath 300 is ready for use, theflexible frame 130 starts to bend. FIG. 5 also shows how one of the clampingmembers 148 will protrude from between thearms 134 of the wishbone-shapedsection 132 when thecollapsible frame 130 is bent.

图6展示了可折伸构架130折叠或弯折后，其中一个夹紧件148从叉骨形段132的臂134之间伸出的情况。从图6可清楚地看出，当可折伸构架130弯折后，两个夹紧件148都会从叉骨形段132的臂134之间伸出。FIG. 6 shows a state where one of the clampingmembers 148 protrudes from between thearms 134 of the wishbone-shapedsection 132 after thecollapsible frame 130 is folded or bent. It can be clearly seen from FIG. 6 that when thecollapsible frame 130 is bent, both clampingmembers 148 protrude from between thearms 134 of the wishbone-shapedsection 132 .

图5还描述了杯座150的突起192以及可折伸构架的狭缝194在针套300使用之前的情况。叉骨形段132的臂可使突起192与狭缝194啮合。FIG. 5 also depicts theprotrusion 192 of thecup holder 150 and theslit 194 of the collapsible frame before the needle guard 300 is used. The arms of thewishbone section 132 allow theprotrusion 192 to engage theslot 194 .

从图6可清楚地看出，顶盖110适于接收针套300从而防止针在使用前受到污染。在本优选实施例中，盖子118与杯座150的底壁154邻接以防止针受到污染。图6中所描述的带有针尖防护安全帽组件100并装好了针套300的注射器，是用户在使用前拿到的样子。用户在使用注射器时，只需将针套去掉然后按着图7所描述的一般的使用方式来使用注射器即可。连接件上的突起192以及可折伸构架的狭缝194可在针套300被去掉的过程中防止针尖帽110从针杆滑下。As is clear from Figure 6, thecap 110 is adapted to receive the needle guard 300 so as to prevent contamination of the needle prior to use. In the preferred embodiment, thecover 118 abuts thebottom wall 154 of thecup holder 150 to prevent contamination of the needle. The syringe with the needle tip protectionsafety cap assembly 100 and the needle sheath 300 installed in it depicted in FIG. 6 is the way the user gets it before use. When using the syringe, the user only needs to remove the needle cover and then use the syringe according to the general usage method described in FIG. 7 . Theprotrusion 192 on the connector and theslit 194 of the collapsible frame prevent thetip cap 110 from sliding off the needle shaft during removal of the needle cover 300 .

使用后，用户只需用手指推已弯折了的可折伸构架130从而将突起192增大了的头部从狭缝194推出。突起上增大了的头部穿过狭缝时，会给用户提供一个触觉反馈信息，即针头的护罩已经启用，同时也告诉用户要施加一个足够力使头部穿过狭缝，这样可保证用户的指头有足够的冲力完全启动针头护罩。After use, the user only needs to push the bent andextensible frame 130 with fingers to push the enlarged head of theprotrusion 192 out of theslit 194 . When the enlarged head on the protrusion passes through the slit, it provides the user with tactile feedback that the needle shield has been activated, and also tells the user to apply enough force to push the head through the slit, which can Ensure that the user's finger has sufficient momentum to fully activate the needle shield.

然后，用户继续推可折伸构架130，使顶盖110如图8所示滑过针头的长度。在本优选实施例中，当顶盖110靠近针尖时，压力平台146接近并最终与杆臂120接触。接触后，继续推可折伸构架130从而将力加到杆臂120上。大约在接触的同时，针尖从孔114出来进到腔128中。在针尖从孔114出来后，相应于杆臂120的推力，顶盖110绕孔122旋转并因此绕着针尖旋转。图9展示了旋转后的顶盖110。The user then continues to push thecollapsible frame 130 so that thecap 110 slides the length of the needle as shown in FIG. 8 . In the preferred embodiment, whencap 110 approaches the needle tip,pressure platform 146 approaches and eventuallycontacts lever arm 120 . After contact, continue to push thecollapsible frame 130 to apply force to thelever arm 120 . At approximately the same time as the contact, the needle tip exits thehole 114 into thecavity 128 . After the needle tip exits thehole 114, thecap 110 rotates about thehole 122 and thus the needle tip in response to the thrust of thelever arm 120. FIG. 9 shows thetop cover 110 after rotation.

对应于用户的推力，当可折伸构架130接近针杆时，夹紧件148与针头啮合并将针头绕住，这样可折伸构架就夹在图9所示的位置。这就提供了一种装置，它通过保持压力平台146与杆臂120的接合从而保持或将顶盖110固定于其相对于针尖旋转后的位置，并进而防止针尖从孔114再冒出来。它还可用来提供一种装置，该装置可防止可折伸构架130弯折并防止顶盖110沿着针杆向上回滑而将针尖露出。因此，夹紧件148可用作将针尖顶盖110固定在针头的防护位置的装置。夹紧件在与针杆啮合时，还可给用户提供额外的触觉反馈信息。Corresponding to the pushing force of the user, when thecollapsible frame 130 approaches the needle shaft, the clampingmember 148 engages and wraps around the needle, so that the collapsible frame is clamped in the position shown in FIG. 9 . This provides a means for maintaining or securing thecap 110 in its rotated position relative to the needle tip by maintaining the engagement of thepressure platform 146 with thelever arm 120 and thereby preventing the needle tip from re-emerging from theaperture 114. It can also be used to provide a mechanism that prevents thecollapsible frame 130 from buckling and prevents thecap 110 from sliding back up the needle shaft to expose the needle tip. Thus, the clampingmember 148 may serve as a means of securing theneedle tip cap 110 in a needle-protected position. The clamping member also provides additional tactile feedback to the user when it engages the needle bar.

此外，在图9所描述的优选实施例中，容腔126用来限制针尖并防止针尖从孔114再冒出来。该容腔还有助于收集从针尖流出来的流体从而使流体不会从顶盖中跑出。还有，为了方便同时也为了确保从顶盖110的底壁116上的孔114漏出来的过量流体被收集到起来，在准备处理时，将针套300置于顶盖110上。Additionally, in the preferred embodiment depicted in FIG. 9 ,cavity 126 is used to confine the needle tip and prevent the needle tip from re-emerging fromaperture 114 . The cavity also helps to collect fluid from the needle tip so that fluid does not escape from the cap. Also, for convenience and also to ensure that excess fluid leaking from thehole 114 in thebottom wall 116 of thetop cover 110 is collected, the needle guard 300 is placed on thetop cover 110 in preparation for disposal.

图11-16所示另一实施例的说明Description of another embodiment shown in Figures 11-16

该实施例中的针尖防护安全帽组件400也由一个单一塑料件铸模加工出来以增加可靠性并降低生产和安装成本。The needletip shield assembly 400 of this embodiment is also molded from a single plastic piece to increase reliability and reduce manufacturing and installation costs.

为了安装该实施例的针尖防护安全帽组件，注射器连接件和针尖顶盖必须旋转到准备收容针头的位置。注射器连接件和构架之间为柔性连接。为此，将注射器连接件即杯座450相对于构架430旋转约90度，这样针头就能沿着与伸开的构架430大致平行的方向穿过注射器连接件450。In order to install the needle tip shielding safety cap assembly of this embodiment, the syringe adapter and needle tip cap must be rotated into a position ready to receive the needle. There is a flexible connection between the syringe connector and the frame. To do this, the syringe connector orcup holder 450 is rotated about 90 degrees relative to theframe 430 so that the needle passes through thesyringe connector 450 in a direction generally parallel to theframe 430 extended.

下一步，将一个与针尖顶盖410柔性连接的盖子(或称封闭件)418旋转后塞住或封住顶盖410。然后旋转与构架430柔性连接且已被封上的顶盖，从而使针头能够穿过顶盖上的孔和杯座450上的孔。当顶盖处于收容针头的位置时，构架(或称可折伸段)430开始在两段之间的柔性部分折叠或弯折，然后将顶盖410沿着针杆滑离针尖。为了有利于上述操作，也为了在插入针头之前更好地固定杯形件，将一个针套480置于顶盖410上从而更便于操纵顶盖410。In the next step, a cover (or closure) 418 flexibly connected to the needle pointtop cover 410 is rotated to plug or seal thetop cover 410 . The cap, which is flexibly connected to theframe 430 and sealed, is then rotated so that the needle can pass through the hole in the cap and the hole in thecup holder 450 . When the top cover is in the needle receiving position, the frame (or called the foldable section) 430 starts to fold or bend at the flexible part between the two sections, and then slides thetop cover 410 away from the needle tip along the needle shaft. In order to facilitate the above-mentioned operation, and to better fix the cup before inserting the needle, aneedle cover 480 is placed on thetop cover 410 to facilitate handling of thetop cover 410 .

当顶盖410在针杆上滑动时，构架(或称可折伸部分)430继续弯折。当顶盖紧靠在或与针头毂或注射器接触时，通过用针套480使顶盖410沿针杆滑下，构架430将与注射器连接件450一起可松开地将顶盖固定住。准备销售时也需安装针套。虽然，用户可启动顶盖将构架松开，但注射前将针套480去掉时，不要动固定好的顶盖410。When thetop cover 410 slides on the needle bar, the frame (or the flexible part) 430 continues to bend.Frame 430 together withsyringe connector 450 will releasably hold the cap in place by slidingcap 410 down the needle shaft withneedle guard 480 when the cap is abutting against or in contact with the needle hub or syringe. Sockets are also installed when ready for sale. Although the user can activate the top cover to loosen the frame, the fixedtop cover 410 should not be moved when theneedle cover 480 is removed before injection.

图11和12所示为该实施例从模子上取下来后的两个不同侧面。图13-16则描述了本优选实施例准备与注射器一起使用时的样子。Figures 11 and 12 show two different sides of this embodiment after it has been removed from the mould. Figures 13-16 depict the preferred embodiment ready for use with a syringe.

回到图11和12，针尖防护组件400包括针尖顶盖(或称针尖帽或者杯形件或者是用来盖住针尖的针尖遮盖装置)410。顶盖410的形状为具有圆周壁的伸长件412。伸长件412的一端开口而另一端则几乎由底壁(或称端壁)416封上。Referring back to FIGS. 11 and 12 , the needletip shielding assembly 400 includes a needle tip cap (or called a needle tip cap or a cup or a needle tip covering device for covering the needle tip) 410 . Thetop cover 410 is in the shape of anelongated member 412 having a circumferential wall. One end of theextension member 412 is open and the other end is almost sealed by a bottom wall (or end wall) 416 .

在图11和12的实施例中，针可从顶盖410的底壁416上的孔(或称眼)414穿过。一个杆臂(或称旋转装置)420与顶盖相连，当推动杆臂时，可使顶盖410相对针尖旋转从而防止针尖从孔414穿过。In the embodiment of FIGS. 11 and 12 , the needle can pass through a hole (or eye) 414 in abottom wall 416 of thetop cover 410 . A lever arm (or called a rotating device) 420 is connected to the top cover. When the lever arm is pushed, thetop cover 410 can be rotated relative to the needle tip so as to prevent the needle tip from passing through thehole 414 .

图11和12还展示了盖子(或称封闭件或顶壁)118，其可绕顶盖与盖子之间的连接部分旋转从而将顶盖帽410封闭。盖子418上有一个孔(或称眼)422，可使针头从中穿过。在该实施例中，盖子(或称针杆啮合装置)418作为杠杆的支点与针头啮合。当针头穿过盖子上的孔422但未穿过底壁上的孔414时，盖子418与针头啮合并为顶盖的旋转提供一个支点。FIGS. 11 and 12 also show a cover (or closure or top wall) 118 that is rotatable around the connection between the top cover and the cover to close thetop cover cap 410 . Cover 418 has a hole (or eye) 422 through which a needle can pass. In this embodiment, the cover (or needle bar engaging means) 418 acts as a fulcrum for the lever to engage the needle. When the needle passes throughhole 422 in the cover but not throughhole 414 in the bottom wall,cover 418 engages the needle and provides a fulcrum for rotation of the top cover.

顶盖410与可折伸构架(或称可折部件或可折伸段)430相连，可折伸构架再与注射器连接件即杯座450相连。杯座450可用来将针尖防护安全组件与针头毂或注射器相连。在该实施例中，顶盖410与可折伸构架部件430之间采用直接连接的形式。Thetop cover 410 is connected with a foldable frame (or called a foldable part or a foldable segment) 430 , and the foldable frame is connected with a syringe connector, that is, acup holder 450 . Thecup holder 450 can be used to attach the needle tip guard safety assembly to a needle hub or syringe. In this embodiment, thetop cover 410 is directly connected to thefoldable frame member 430 .

杯座450具有圆周壁452和底壁454。底壁454具有可容许针头从中穿过的孔456。在该特例中，设有板条458，用来限定圆周壁452内侧靠近底壁454处的通道，从而可使杯座450更为容易地连接到针头毂上。本实施例中还包括一个连接臂460，它从杯座450靠近底壁454的地方延伸。连接臂460用来将杯座450连接在可折伸构架430上。连接臂460与可折伸构架430为柔性连接。Cup holder 450 has aperipheral wall 452 and abottom wall 454 . Thebottom wall 454 has anaperture 456 that allows a needle to pass therethrough. In this particular example, aslat 458 is provided to define a passage on the inside of theperipheral wall 452 adjacent thebottom wall 454 to facilitate attachment of thecup holder 450 to the needle hub. This embodiment also includes a connectingarm 460 extending from thecup holder 450 near thebottom wall 454 . The connectingarm 460 is used to connect thecup holder 450 to thefoldable frame 430 . The connectingarm 460 is flexibly connected to thefoldable frame 430 .

在该实施例中，可折伸构架430有许多用处。其可用来将杯座450与针尖顶盖410相连，并可用来可松开地将顶盖410固定在针尖的远端。其还可用来使针尖顶盖410滑下针杆，并有助于顶盖410绕着针尖旋转。此外，其还有助于保持针尖顶盖410的旋转位置。In this embodiment, thecollapsible frame 430 serves a number of purposes. It can be used to attach thecup holder 450 to theneedle tip cap 410 and can be used to releasably secure thecap 410 to the distal end of the needle tip. It can also be used to slide thetip cap 410 off the needle shaft and assist in the rotation of thecap 410 around the needle tip. Additionally, it helps maintain the rotational position of theneedle tip cap 410 .

如图11和12所示，可折伸构架430可包括一个叉骨形段432和一个下部段440。叉骨形段432具有两个臂434和一个座436。叉骨形段的臂434与杯座的连接臂460柔性连接。下部段440具有一个上端442和一个下端444。叉骨形段的座436与下部段440的上端442柔性相连。下部段的下端444与顶盖410柔性相连。有两个突出的夹紧件448安装在下部段440上。叉骨形段432形成了一个开口或称一个装置，当可折伸构架430弯折时，夹紧件448可从中穿过。As shown in FIGS. 11 and 12 , thecollapsible frame 430 may include awishbone section 432 and alower section 440 . The wishbone-shapedsegment 432 has twoarms 434 and aseat 436 . Thearm 434 of the wishbone section is flexibly connected to the connectingarm 460 of the cup holder.Lower section 440 has anupper end 442 and alower end 444 . Theseat 436 of the wishbone section is flexibly connected to theupper end 442 of thelower section 440 . Thelower end 444 of the lower section is flexibly connected to thetop cover 410 . Mounted on thelower section 440 are two protrudingclamps 448 . Thewishbone section 432 defines an opening or means through which the clampingmember 448 passes when thecollapsible frame 430 is bent.

图12还展示了一个压力平台446，其最终与杆臂420接触并使顶盖410产生旋转。压力平台446与锁定面(或称锁定边)449相邻。锁定面449用来在可折伸构架折起时将可折伸构架430固定在杯座450上。锁定面449将在下面作更详细地讨论。FIG. 12 also shows apressure platform 446 that ultimately contacts thelever arm 420 and causes thetop cover 410 to rotate. Thepressure platform 446 is adjacent to a locking surface (or called a locking edge) 449 . The lockingsurface 449 is used to fix thecollapsible frame 430 on thecup holder 450 when the collapsible frame is folded. The lockingface 449 will be discussed in more detail below.

图12还展示了一对突出的夹紧件448，其从下部段440伸出，用作防护位锁定装置。针头使用完后，夹紧件448用作一个将可折伸构架430固定在针杆上的装置。将可折伸构架430固定在针杆上可确保顶盖410保持在旋转位或扭转位，以及使顶盖410保持在防护位，这样顶盖410不会沿着针杆向上滑回，并将针尖暴露出来。Figure 12 also shows a pair of protrudingclips 448 extending from thelower section 440 for use as guard position locking means. After the needle is used, the clampingmember 448 serves as a means to secure thecollapsible frame 430 to the needle shaft. Fixing thecollapsible frame 430 on the needle bar ensures that thetop cover 410 remains in a rotated or twisted position, and keeps thetop cover 410 in a protective position so that thetop cover 410 will not slide back up along the needle bar and will The needle tip is exposed.

图13展示了杯座450是如何旋转从而为针头穿过杯座450以及与注射器相连作准备的。板条458作为一个装置，在注射器与杯座中的针头相连或分开时，可用来对针头进行定向并防止针头在杯座中旋转。杯座(或称注射器连接件)450还具有一个突起(或称锁定隆起)462。突起462可拆地与锁定面449啮合，从而当可折伸构架430如图16那样弯折时，提供一个锁定装置。Figure 13 shows how thecup holder 450 is rotated in preparation for the needle to pass through thecup holder 450 and be attached to the syringe.Slat 458 serves as a means for orienting the needle and preventing rotation of the needle in the cup when the syringe is attached or disconnected from the needle in the cup. The cup holder (or syringe connector) 450 also has a protrusion (or locking protrusion) 462 .Protrusion 462 releasably engages lockingsurface 449 to provide a locking means when thecollapsible frame 430 is bent as shown in FIG. 16 .

图13还展示了盖子418旋转封闭顶盖410并形成图14所示腔428的情况。在此实施例中，盖子418上的孔(或称眼)422有一个部分倾斜的边424。部分倾斜的边424可使顶盖410如图9所示的那样更为容易地绕针尖旋转。FIG. 13 also shows thecover 418 being rotated to close thetop cover 410 and form the cavity 428 shown in FIG. 14 . In this embodiment, a hole (or eye) 422 in thecover 418 has a partially beveled side 424 . The partially sloped sides 424 allow thecap 410 to be more easily rotated about the needle tip as shown in FIG. 9 .

顶盖410在孔(或称眼)414四周具有一个环形沟426。其在顶盖410绕针尖旋转后，通过将针尖束缚从而有助于防止针尖从孔414意外地再次冒出。Thetop cover 410 has an annular groove 426 around the hole (or eye) 414 . It helps prevent accidental re-emergence of the needle tip from theaperture 414 by restraining the needle tip after thecap 410 is rotated about the needle tip.

图14描述了杯座450旋转后的情况，并展示了针头插入的方向从而为针尖防护安全帽组件400与注射器相连作准备。图14还描述了封闭了的顶盖410中的腔428。在此实施例中该腔不仅可盖住针尖，还可收集从针尖流出的流体。FIG. 14 depicts thecup holder 450 after rotation, and shows the direction of needle insertion in preparation for the needle tip protectionsafety cap assembly 400 to be attached to the syringe. FIG. 14 also depicts cavity 428 intop cover 410 which is closed. In this embodiment the lumen not only covers the needle tip, but also collects fluid flowing from the needle tip.

图14中，在封闭了的顶盖410旁边的箭头指示出封闭了的顶盖410旋转的方向，旋转以后就为针尖防护安全帽组件400与注射器相连作好了准备。将杯座450以及封闭了的顶盖410旋转后可使针头穿过两者，从而为针尖防护安全帽组件400与注射器的连接作好准备。In Fig. 14, the arrow next to the closedtop cover 410 indicates the direction in which the closedtop cover 410 rotates, and after the rotation, it is ready for the needle tip protectionsafety cap assembly 400 to be connected to the syringe. After thecup holder 450 and the closedtop cover 410 are rotated, the needle can pass through both, so as to prepare for the connection of the needle tip protectionsafety cap assembly 400 and the syringe.

图15描述了针尖防护安全帽组件400与注射器490相接从而为接收针套480作准备的情况。尽管在此实施例中，所述组件是连接在针头毂494上，但其也可以连接在针筒492上，从而提供一个与注射器490相连的装置。FIG. 15 depicts needle tip shieldingsafety cap assembly 400 engaged withsyringe 490 in preparation for receivingneedle guard 480 . Although in this embodiment the assembly is attached to theneedle hub 494, it could also be attached to thebarrel 492 to provide a means for attachment to thesyringe 490.

如图15所示，当装上针尖防护安全帽组件400并为针套480的使用做好准备后，可折伸构架430开始弯折。图15还展示了可折伸构架430弯折时，其中一个夹紧件448将如何从叉骨形段432的臂434之间伸出的情景。图16展示了可折伸构架430折叠或弯折后，其中一个夹紧件448从叉骨形段432的臂434之间伸出的情况。从图16可清楚地看出，当可折伸构架430弯折后，两个夹紧件448都会从叉骨形段432的臂434之间伸出。As shown in FIG. 15 , when the needle tip protectionsafety cap assembly 400 is installed and theneedle sheath 480 is ready for use, theflexible frame 430 starts to bend. Figure 15 also shows how one of the clampingmembers 448 will protrude from between thearms 434 of thewishbone section 432 when thecollapsible frame 430 is bent. FIG. 16 shows a state where one of the clampingmembers 448 protrudes from between thearms 434 of the wishbone-shapedsection 432 after thecollapsible frame 430 is folded or bent. It can be clearly seen from FIG. 16 that when thecollapsible frame 430 is bent, both clampingmembers 448 protrude from between thearms 434 of the wishbone-shapedsection 432 .

图15还描述了杯座450的突起(或称锁定隆起)462以及锁定面(或称锁定边)449在使用针套480之前的情况。杯座450上的突起462提供了一个面，可折珍构架430上的锁定边449与之接触，从而提供了一个可松开的锁定装置。叉骨形段的臂434可使突起462与锁定面449接触。图16还描述了针套将针盖住的时候，锁定面449与突起462啮合的情况。FIG. 15 also depicts the protrusion (or locking protrusion) 462 and the locking surface (or locking edge) 449 of thecup holder 450 before using theneedle sheath 480 .Protrusion 462 oncup holder 450 provides a surface against which lockingedge 449 oncollapsible frame 430 contacts to provide a releasable locking mechanism. Thearm 434 of the wishbone section enables theprotrusion 462 to contact the lockingsurface 449 . FIG. 16 also depicts the lockingsurface 449 engaging theprotrusion 462 when the needle guard covers the needle.

从图16可清楚地看出，顶盖410适于接收针套480从而防止针头在使用前被污染。在此实施例中，盖子(或称顶壁)418与杯座450的底壁454邻接以防止针头被污染。图16中所描述的带有针尖防护安全帽组件400并装好针套480的注射器，是用户在使用前拿到样子。用户在使用注射器时，只需将针套去掉就能按照一般的方法来使用注射器。相互啮合的突起462和锁定面449可在针套480被去掉的过程中用来防止顶盖410从针杆滑下。As best seen in Figure 16, thecap 410 is adapted to receive theneedle guard 480 to prevent contamination of the needle prior to use. In this embodiment, the cover (or top wall) 418 abuts thebottom wall 454 of thecup holder 450 to prevent contamination of the needle. The syringe described in FIG. 16 with the needle tip protectionsafety cap assembly 400 and theneedle cover 480 installed is the way the user takes it before use. When using the syringe, the user only needs to remove the needle cover to use the syringe in the usual way. Theinterengaging protrusion 462 and lockingsurface 449 can be used to prevent thecap 410 from sliding off the needle shaft during the removal of theneedle guard 480 .

使用后，用户只需用手指推已弯折了的可折伸构架430从而将锁定面449从突起462移出即可。在该实施例中，当针尖帽410靠近针尖时，压力平台446接近并最终与杆臂420接触。接触后，继续推可折伸构架430从而将力加到杆臂420上。大约在接触的同时，针尖从孔414出来进到腔428中。在针尖从孔414出来后，对应于杆臂420的推力，顶盖410绕孔422旋转并因此绕着针尖旋转。After use, the user only needs to push the bent andextendable frame 430 with fingers to move the lockingsurface 449 out of theprotrusion 462 . In this embodiment, as theneedle tip cap 410 approaches the needle tip, thepressure platform 446 approaches and eventually contacts thelever arm 420 . After contact, continue to push thecollapsible frame 430 to apply force to thelever arm 420 . At approximately the same time as contact, the needle tip exitshole 414 into cavity 428 . After the needle tip emerges from thehole 414, thecap 410 rotates about thehole 422 and thus the needle tip in response to the thrust of thelever arm 420.

当可折伸构架430相应于用户的推动接近针杆时，夹紧件448与针啮合并将针围住，这样可折伸构架430就被夹持定位。并由此提供了一种装置，该装置通过保持压力平台446与杆臂420的接合从而将顶盖410保持或固定在相对于针尖旋转后的位置，并进而防止针尖从孔414再冒出来。其还可用来提供一种装置，该装置可防止可折伸构架430弯折并防止顶盖410沿着针杆向上回滑而将针尖露出。因此，夹紧件448提供了一种将针尖顶盖410固定在针的防护位置的装置。When thecollapsible frame 430 approaches the needle shaft in response to the user's push, the clampingmember 448 engages and encloses the needle so that thecollapsible frame 430 is clamped in place. and thus provides a means for maintaining or securing thecap 410 in a rotated position relative to the needle tip by maintaining engagement of thepressure platform 446 with thelever arm 420 and thereby preventing the needle tip from re-emerging from theaperture 414 . It can also be used to provide a means that prevents thecollapsible frame 430 from buckling and prevents thecap 410 from sliding back up the needle shaft to expose the needle tip. Thus, theclamp 448 provides a means of securing theneedle tip cap 410 in the needle guarded position.

环形沟426用来限制针尖并防止针尖从孔414再冒出来。该沟还有助于收集从针尖流出来的流体从而使流体不会轻易地从针尖帽跑出。还可优选使孔422紧紧围绕在针杆周围，这样容腔内的流体不会从孔422漏出。此外，为了方便同时也为了确保从顶盖410的底壁416上的孔414漏出来的过量流体被收集到起来，在准备处理时，针套480可置于顶盖410上。The annular groove 426 serves to confine the needle tip and prevent the needle tip from re-emerging from thehole 414 . The groove also helps to collect fluid from the needle tip so that fluid cannot easily escape from the needle tip cap. It is also preferable to make thehole 422 tightly surround the needle shaft so that the fluid in the cavity cannot leak out of thehole 422 . Additionally, for convenience and to ensure that excess fluid that escapes throughaperture 414 inbottom wall 416 oftop cover 410 is collected,needle guard 480 may be placed ontop cover 410 in preparation for disposal.

虽然仅公开了本发明的几个实施例，但是在不脱离本发明权利要求的基础上，还会有许多改进或其它实施例。Although only a few embodiments of the invention have been disclosed, there are many modifications and other embodiments without departing from the claims of the invention.

Claims (20)

Translated fromChinese

1.一种针尖防护安全帽组件，其在使用完注射器后用来安全地将注射器的针尖盖住并防护起来，所述组件包括：1. A needle point protection safety cap assembly, which is used to safely cover and protect the needle point of the syringe after using the syringe, said assembly comprising:一注射器连接件，其用来将针尖防护安全帽组件牢牢地连在注射器的针头毂上；a syringe connector, which is used to firmly connect the needle tip protection safety cap assembly to the needle hub of the syringe;一针尖顶盖，其由一伸长的中空部件构成，该部件一端开口用来将针头接收入其中，另一端被一端壁封闭，端壁上有一孔，针头可从该孔中穿过；a needle point cap consisting of an elongate hollow member open at one end for receiving the needle therein and closed at the other end by an end wall having an aperture through which the needle can pass;一个可折伸构架，该可折伸构架上有一近端和一远端，近端与注射器连接件相连而远端则与针尖顶盖相连；可折伸构架能手动沿着针推动顶盖，并使顶盖的端壁最终超过针尖的顶点；a collapsible frame having a proximal end connected to the syringe connector and a distal end connected to the needle tip cap; the collapsible frame can be manually pushed along the needle cap, and so that the end wall of the top cap eventually exceeds the apex of the needle tip;其特征在于：所述组件还包括一盖子，其用来封闭针尖顶盖的开口端，该盖子上还有一个能让针头从中穿过的孔，从而针能穿过该盖子上的孔以及该针尖顶盖上的孔；而且It is characterized in that: the assembly also includes a cover, which is used to close the open end of the needle point top cover, and the cover also has a hole through which the needle can pass, so that the needle can pass through the hole on the cover and the the hole in the needle tip cap; and针尖顶盖由盖子上的孔支撑，并在顶盖继续前进时绕着盖子上的孔旋转，直到针尖通过封闭了的顶盖端壁的内侧，进到一个防护位，在该位置上针尖不能穿过顶盖上的孔。The needle point cap is supported by the hole in the cap and rotates around the hole in the cap as the cap continues to advance until the needle tip passes the inside of the closed cap end wall into a guarded position where it cannot through the hole in the top cover.2.如权利要求1所述的一种针尖防护安全帽组件，其特征在于：其中盖子以枢轴方式固定在顶盖上；并且注射器连接件、顶盖、盖子以及可折伸构架由塑料材料一体成形。2. A needlepoint protection safety cap assembly as claimed in claim 1, wherein the cover is pivotally fixed on the top cover; and the syringe connector, the top cover, the cover and the foldable frame are made of plastic material Formed in one piece.3.如权利要求1所述的一种针尖防护安全帽组件，其特征在于：其中的顶盖进一步包括一个容腔，容腔形成在与孔相邻的端壁上，孔用作针的通道，当针尖顶盖起作用时，容腔用来将针尖封闭住，从而防止针尖从孔中再冒出来。3. A needle point protection safety cap assembly as claimed in claim 1, wherein the top cover further comprises a cavity, the cavity is formed on the end wall adjacent to the hole, and the hole is used as a passage for the needle, when When the needle tip cover works, the cavity is used to seal the needle tip, thereby preventing the needle tip from emerging from the hole again.4.如权利要求3所述的一种针尖防护安全帽组件，其特征在于：在针尖顶盖上进一步包括一个支点，同时可折伸构架在顶盖端壁超出针尖的顶点时，能进一步作用在支点上并使顶盖旋转从而使针尖进到容腔中。4. A needlepoint protective safety cap assembly as claimed in claim 3, characterized in that: a fulcrum is further included on the needlepoint top cover, and the foldable and stretchable frame can further act when the end wall of the top cover exceeds the apex of the needlepoint On the fulcrum and rotate the cap so that the needle tip enters the cavity.5.如权利要求1所述的一种针尖防护安全帽组件，其特征在于：其中可折伸构架进一步包括一个近端构架段和一个远端构架段，构架段之间在可折伸构架的中间用铰链相连，铰链在可折伸构架被伸展前、针尖顶盖未盖住针尖时位于闭合的位置，这时近端和远端构架段相互之间基本平行，打开铰链，构架即可伸展开来。5. A needlepoint protection safety cap assembly as claimed in claim 1, wherein the foldable and stretchable frame further comprises a proximal frame segment and a distal frame segment, and the stretchable frame is between the frame segments. The middle is connected by a hinge, and the hinge is in the closed position when the needle tip cover does not cover the needle tip before the foldable frame is stretched. At this time, the proximal and distal frame sections are basically parallel to each other. Open the hinge and the frame can be extended. open.6.如权利要求5所述的一种针尖防护安全帽组件，其特征在于：在可折伸构架上还进一步包括至少一个夹紧件，该夹紧件在可折伸构架完全伸展、针尖处于所述防护位时能不可逆地啮合在针头上。6. A safety helmet assembly for needlepoint protection according to claim 5, characterized in that: at least one clamping part is further included on the foldable and stretchable frame, and the clamping part is fully extended when the foldable and stretchable frame is fully extended and the needlepoint is at the The guard position is irreversibly engaged on the needle.7.如权利要求1所述的一种针尖防护安全帽组件，其特征在于：在注射器连接件和可折伸构架上还进一步包括互锁件，该互锁件可松开地将针尖防护安全帽组件固定在可折伸构架处于折叠的状态，并且在可折伸构架伸展时提供一个触觉指示。7. A needle tip protection safety cap assembly according to claim 1, characterized in that: an interlocking part is further included on the syringe connector and the foldable frame, and the interlocking part can releasably secure the needle tip protection The cap assembly is secured in the collapsed state of the collapsible frame and provides a tactile indication when the collapsible frame is extended.8.如权利要求7所述的一种针尖防护安全帽组件，其特征在于：其中注射器连接件上的互锁件包括一个突起，突起上有一个增大了的球形端头，而可折伸构架上的互锁件则包括一个狭槽，其宽度小于球形端头的直径；突起和狭槽分别位于注射器连接件和可折伸构架上，这样当可折伸构架处于折叠状态、针尖顶盖处于远离针尖的收缩位时，突起通过其球形端头穿过狭槽而与狭槽啮合，由此针头顶盖可松开地保持在未起作用状态。8. A needle tip protection safety cap assembly as claimed in claim 7, wherein the interlocking part on the syringe connector comprises a protrusion with an enlarged spherical end, which can be folded and stretched The interlock on the frame includes a slot with a width less than the diameter of the spherical tip; the protrusion and the slot are located on the syringe connector and the collapsible frame, respectively, so that when the collapsible frame is in the folded position, the needle tip caps In the retracted position away from the needle tip, the protrusion engages the slot by passing its spherical end through the slot, whereby the needle cap is releasably held in the inactive condition.9.如权利要求1所述的一种针尖防护安全帽组件，其特征在于：其中注射器连接件进一步包括至少一个环形槽，其与注射器针头毂上对应的环形圈啮合。9. A needle tip shielding safety cap assembly according to claim 1, wherein the syringe connector further comprises at least one annular groove engaging with a corresponding annular ring on the syringe needle hub.10.如权利要求1所述的一种针尖防护安全帽组件，其特征在于：其中注射器连接件进一步包括至少一个长槽与注射器针头毂上相对应的长凸起相啮合，从而使针尖防护安全帽相对于注射器针头毂保持在固定的半径方向。10. A needle tip protection safety cap assembly according to claim 1, wherein the syringe connector further comprises at least one elongated slot engaged with a corresponding elongated protrusion on the syringe needle hub, thereby making the needle tip protection safety The cap is maintained at a fixed radial orientation relative to the syringe needle hub.11.如权利要求1所述的一种针尖防护安全帽组件，其特征在于：其中针尖顶盖用于接收一针套，从而在针尖顶盖远离针尖时使针套将针头盖住。11. A needle point protection safety cap assembly according to claim 1, wherein the needle point cover is used to receive a needle cover, so that the needle cover covers the needle when the needle point cover is away from the needle point.12.一种可连接于注射器座的针尖保护组件，初始允许注射器针头伸出进入可使用的操作位置，然后可伸进一锁定位置，在该位置，针尖处于一种完全保护状态，包括：12. A needle tip protection assembly attachable to a syringe holder, initially allowing the syringe needle to extend into a usable operating position, and then extendable into a locked position in which the needle tip is in a fully protected state, comprising:一个可操作的注射器连接件，用来牢固地将针尖保护组件连接于一个注射器的针头毂上；an operable syringe connector for securely attaching the needle tip protection assembly to the needle hub of a syringe;一个可折伸的构架，该构架有一个铰链地连接于注射器连接件的近端，和一个远端；a collapsible frame having a proximal end hingedly connected to the syringe connector, and a distal end;一个针尖顶盖件，其具有一个加长的中空结构，在一端有开口，在其另一端有一个带孔的端壁，操作时针头通过此孔伸出，且在所述端壁上从该孔横向移动一段距离还有一个针尖接收凹槽；A needle tip cover member having an elongated hollow structure open at one end and having an end wall at the other end with a hole through which the needle protrudes in operation and from which hole in said end wall There is also a needle tip receiving groove when moving laterally for a certain distance;该顶盖件在其开口端的一侧处被铰链地连接于该可折伸构架的远端；the top cover is hingedly connected to the distal end of the collapsible frame at one side of its open end;其特征在于该针尖保护组件还包括：It is characterized in that the needle tip protection component also includes:一个铰链地连接于顶盖件开口端的盖子，该盖子也有一个孔，经过此孔针头可以伸出，平时封闭顶盖件的开口端，这样该针头在使用伸出时可以穿过这两个孔；A cover hingedly attached to the open end of the top cover member, which cover also has a hole through which the needle can protrude, normally closing the open end of the top cover member, so that the needle can pass through both holes when extended in use ;在针头使用完毕后，该可折伸构架可被操作者用一只手操作充分伸长，以使针头继续伸长而穿过盖子的孔而保持在顶盖件内，但不再穿过顶盖件的孔；和After the needle is used, the collapsible frame can be fully extended by the operator with one hand, so that the needle continues to extend through the hole in the cover and remains in the top cover, but no longer passes through the top. holes in the cover; and该顶盖件及其连接于可折伸构架的铰链连接是用塑性材料整体地构成的，这样，当针头远端不再穿过顶盖件的孔时，铰链的旋转运动使针尖横向移动到顶盖件的凹槽中。The top cover member and its hinged connection to the collapsible frame are integrally formed of plastic material so that when the distal end of the needle no longer passes through the hole in the cover member, rotational movement of the hinge causes the needle tip to move laterally to the top cover member. groove in the cover.13.如权利要求12所述的针尖保护组件，其特征在于：其中针头顶盖件端壁上的该凹槽在与顶盖件和构架铰链连接相对的一侧。13. The needle tip protection assembly according to claim 12, wherein the groove on the end wall of the needle cap is on the side opposite to the hinge connection between the cap and the frame.14.如权利要求12所述的针尖保护组件，其特征在于：其中整个组件是用塑性材料整体地构成的。14. The needle tip protection assembly of claim 12, wherein the entire assembly is integrally formed of plastic material.15.如权利要求12所述的针尖保护组件，其特征在于：还包括一个在针尖顶盖件上的支点轴，当顶盖件的端壁超出针尖的顶点时，可折伸构架可以进一步操作以使支点轴动作并因此引起顶盖件转动，因此针头的顶点进入该凹槽。15. The needle tip protection assembly according to claim 12, further comprising a fulcrum shaft on the needle tip top cover, when the end wall of the top cover exceeds the apex of the needle tip, the collapsible frame can be further operated To move the fulcrum shaft and thus cause the cap member to rotate so the apex of the needle enters the groove.16.如权利要求12所述的针尖保护组件，其特征在于：其中可折伸构架的近端包括一个叉骨形段，该叉骨形段用于连接一个与注射器连接的杯座，该叉骨形段有两个臂和一个座，该两个臂柔性地连接于该杯座，如此，杯座可以借助两个臂的柔性连接而相对于该叉骨形段转动。16. The needle tip protection assembly according to claim 12, wherein the proximal end of the foldable and extensible frame comprises a wishbone-shaped section, and the wishbone-shaped section is used to connect a cup holder connected with a syringe, and the fork The bone-shaped section has two arms and a seat, the two arms are flexibly connected to the cup, so that the cup can be rotated relative to the wishbone-shaped section by means of the flexible connection of the two arms.17.一种针尖防护安全帽组件，其在注射器使用完后用来安全地将注射器的针尖盖住并防护起来，所述组件包括：17. A needle point protection safety cap assembly, which is used to safely cover and protect the needle point of the syringe after use, the assembly comprising:一个注射器连接装置，其用来将针尖防护安全帽组件牢牢地连在注射器的针头毂上；A syringe connection device, which is used to firmly connect the needle tip protection safety cap assembly to the needle hub of the syringe;一针尖顶盖，其采用伸长的中空部件的形状，该部件一端开口用来将针头收入其中，另一端几乎被一端壁封闭，端壁上有一孔，针头能从该孔中穿过；a needle point cap in the form of an elongated hollow member open at one end for receiving the needle and nearly closed at the other end by an end wall having a hole through which the needle can pass;其特征在于所述组件还包括：It is characterized in that the components also include:一个封闭装置，其用来封闭顶盖的开口端，但该装置可让针头从中穿过，并且该装置是一体成形的；a closure device which closes the open end of the cap but which allows a needle to pass therethrough and which is integrally formed;一个连接在注射器连接装置和针尖顶盖装置远端上的构架，该构架能手动沿着针推动顶盖，并使顶盖的端壁最终超过针尖的顶点；a frame attached to the distal end of the syringe adapter and needle tip cap assembly, the frame being capable of manually pushing the cap along the needle so that the end wall of the cap eventually exceeds the apex of the needle tip;然后，顶盖由封闭装置上的孔支撑，并且当顶盖的继续前进，顶盖绕着封闭装置上的孔旋转，直到针尖经过封闭了的顶盖端壁的内侧，进到一个防护位，在该位置上针尖不能穿过顶盖上的孔；The cap is then supported by the hole in the closure, and as the cap continues to advance, the cap rotates around the hole in the closure until the needle tip passes the inside of the closed cap end wall into a guarded position, In this position the needle point cannot pass through the hole in the top cover;针尖防护安全帽组件为一体成形。The needle point protection safety cap assembly is integrally formed.18.如权利要求17如述的针尖防护安全帽组件进一步包括手动锁定装置，其将顶盖固定而使针尖处于所述防护位。18. The needle tip shielding safety cap assembly of claim 17 further comprising manual locking means for securing the top cover to keep the needle tip in said shielding position.19.如权利要求17所述的针尖防护安全帽组件，其特征在于：所述注射器连接装置进一步包括一个突起，该突起上有一个球形端头，而所述构架上则包括一个狭槽，所述狭槽的宽度小于所述球形端头的宽度，使得所述球形端头能穿过所述狭槽而令所述突起与该狭槽啮合，以将顶盖可松开地锁定在远离针尖的收缩位。19. The needle tip protection safety cap assembly according to claim 17, wherein said syringe connection device further comprises a protrusion having a spherical end, and said frame comprises a slot, whereby The width of the slot is smaller than the width of the spherical tip, so that the spherical tip can pass through the slot to cause the protrusion to engage the slot to releasably lock the cap away from the needle tip. the contraction bit.20.一种针尖防护安全帽组件，包括：20. A needle tip protective safety helmet assembly, comprising:a)一个杯座，其包括：a) a cup holder comprising:(i)一个圆周壁，并且有一个底壁连接在圆周壁上以形成一个杯体，(i) a peripheral wall with a bottom wall attached to the peripheral wall to form a cup,(ii)该杯体用来连接到注射器上，(ii) the cup is intended to be attached to a syringe,(iii)杯体的底壁有一个孔，该孔能使针头从中穿过，(iii) the bottom wall of the cup has a hole through which a needle can pass,其特征在于所述杯座还包括：It is characterized in that the cup holder also includes:(iv)一对连接臂，其从圆周壁靠近杯座底壁的位置向外伸出，以及(iv) a pair of connecting arms projecting outwardly from the peripheral wall near the bottom wall of the cup holder, and(v)  一个锁定突起，其从圆周壁靠近杯座底壁的位置伸出；(v) a locking projection extending from the peripheral wall adjacent the bottom wall of the cup holder;所述针尖防护安全帽组件还包括：b)一个可折伸段，其具有两个段，包括：The needle tip protection safety helmet assembly also includes: b) a foldable stretchable section, which has two sections, including:(i)一个叉骨形段，其具有两个臂和一个座，臂与杯座的连接臂柔性连接，这样，杯座能够绕着杯座的连接臂和叉骨形段的臂之间形成的轴旋转；以及(i) A wishbone-shaped segment having two arms and a seat, the arms flexibly connected to the connecting arm of the cup holder, such that the cup seat can be formed around the connecting arm of the cup holder and the arm of the wishbone-shaped segment axis of rotation; and(ii)一个下部段，其具有上端和下端，上端与叉骨形段的座柔性连接，下部段在靠近下端的位置具有一个锁定槽，当可折伸段折起并且下部段处于邻近杯座的位置时，该锁定槽以可松开的形式将下部段锁定在杯座的锁定突起上；以及(ii) a lower section having an upper end and a lower end, the upper end being flexibly connected to the seat of the wishbone-shaped section, the lower section having a locking groove near the lower end, when the collapsible section is folded and the lower section is adjacent to the cup holder position, the locking groove releasably locks the lower section to the locking protrusion of the cup holder; andc)一针尖帽，其柔性连接在下部段的下端，该针尖帽包括：c) a needle point cap flexibly attached to the lower end of the lower section, the needle point cap comprising:(i)一个圆周壁、一个顶壁和一个底壁，三者形成一个腔；(ii)针尖帽的顶壁和底壁上各有一个眼，针头能从眼中穿过；而且(i) a peripheral wall, a top wall, and a bottom wall which form a cavity; (ii) the top and bottom walls of the needlepoint cap each have an eye through which the needle can pass; and所述针尖帽是一体成形的。The needle point cap is integrally formed.

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