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公开(公告)号：US5817058A
公开(公告)日：1998-10-06
申请号：US773211
申请日：1996-12-23
申请人： Thomas J. Shaw
发明人： Thomas J. Shaw
CPC分类号： A61M25/0631 , A61M5/3234
摘要： A retractable catheter introducer structure includes a stepped housing and a retractable needle holder. The head of the needle holder is held in a first embodiment by means of a plunger tube having a landed front opening and in a second embodiment wherein the head of the needle holder is possessed of a surrounding ring member which can be pressed upon and released by the open mouth of an elongated tube. A catheter needle extends from the front of the housing to which a catheter assembly is removably attached. Both embodiments provide one handed operation. Retraction is triggered by pulling on the housing with the plunger tube backed against the palm of the hand to release the needle holder. Until the introducer structure is separated, the catheter assembly remains attached to the housing after retraction is triggered giving the operator greater control by reducing uncontrolled fluid egress.
摘要翻译： 可伸缩的导管引导器结构包括阶梯式外壳和可缩回针保持器。 针保持器的头部通过具有着陆前开口的柱塞管保持在第一实施例中，并且在第二实施例中，针保持器的头部具有可被按压并被 细长管的开口。 导管针从壳体的前部延伸，导管组件可移除地附接到该导管针。 两个实施例提供单手操作。 通过拉动外壳的方式触发退回，柱塞管靠在手掌上以释放针架。 在导引器结构分离之前，导管组件在收缩被触发后保持附接到壳体，从而使操作者通过减少不受控制的流体流出而获得更大的控制。
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公开(公告)号：US5632733A
公开(公告)日：1997-05-27
申请号：US537242
申请日：1995-09-29
申请人： Thomas J. Shaw
发明人： Thomas J. Shaw
CPC分类号： A61M5/3234 , A61M2005/3235 , A61M5/502 , A61M5/508
摘要： A tamperproof retractable non-reusable syringe has a one piece hollow outer body with a barrel for a slidable plunger, a transition zone and a smaller diameter nose portion. An elongated needle holder and spring combination is installable from the rear of the outer body, guided into the nose portion and held by cooperating inwardly and outwardly facing surfaces oriented in the direction of retraction at the most constricted part of the transition zone where the nose begins. The plunger has an opening with a dislodgable stopper for receiving parts of the retraction mechanism. The stopper and the head of the needle holder are of significantly reduced diameter from the injection fluid chamber to resist blowing out prematurely. In one embodiment the head of the needle holder is surrounded by a separable retainer member which is slidingly removed by contact with the tip of the plunger after the stopper is mostly or fully removed to avoid cumulation of force required for retraction after the injection. In a second embodiment the head of the needle holder is clamped and held by constricting forces imposed by stress on the outer body induced by interference fit. Release occurs by slight expansion on the barrel by contact of the plunger tip with a small internal ramp in the outer barrel. Both embodiments have a plunger cap configured to enter an opening in the outer body to provide an additional tamperproof feature.
摘要翻译： 防篡改的可伸缩不可重复使用的注射器具有一体式中空外体，其具有用于滑动柱塞，过渡区和较小直径鼻部的筒。 细长的针保持器和弹簧组合件可从外体的后部安装，被引导到鼻部，并且通过配合的向内和向外的表面保持，该表面在鼻子开始的过渡区域的最狭窄的部分处被缩回的方向 。 柱塞具有用于接收回缩机构的部分的可拆卸止动件的开口。 针架的止动器和头部从注射流体室直径显着减小，以防过早吹出。 在一个实施例中，针保持器的头部被可分离的保持器构件围绕，该保持构件在止动器被大部分或完全移除之后通过与柱塞的尖端接触而被滑动地移除，以避免在注射之后累积所需的力。 在第二实施例中，针保持器的头部被夹紧并通过受到由过盈配合引起的外部应力施加的力的夹紧而保持。 释放通过柱塞尖端与外筒中的小内部斜坡的接触而在筒上的轻微膨胀。 两个实施例都具有被配置成进入外部主体中的开口以提供另外的防篡改特征的柱塞帽。
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公开(公告)号：US5423758A
公开(公告)日：1995-06-13
申请号：US168659
申请日：1993-12-16
申请人： Thomas J. Shaw
发明人： Thomas J. Shaw
CPC分类号： A61B5/150656 , A61B5/15003 , A61B5/150496 , A61B5/150732 , A61B5/154 , A61B5/150389 , A61B5/150572 , A61M5/3232
摘要： A permanently automatically retractable fluid collecting device has an elongated outer protective tube member having a front end with a port and a coaxial telescoping plunger having a forward end for frictionally engaging a needle holder for a canula needle. The plunger is slidingly mounted in the elongated tube member for selective movement in an axial direction toward and away from the front. The front end of the plunger has an opening having inwardly facing surfaces for frictionally engaging outwardly facing surfaces of the periphery of a needle holder along a slidable axially oriented interface. When the plunger is moved forward to extend the needle from the port, a catch holds it in a first position. Biasing force is applied to the needle holder being frictionally held in the front of the plunger. A sample tube is installable in the opening at the rear of the plunger. After taking a sample and removing the collection tube, a plunger cap is repositioned to allow the plunger to be moved from the first position toward a second position causing sliding separation of the plunger from the needle holder along the slidable interface. The biasing force overcomes remaining frictional holding force at the sliding interface to cause immediate and permanent retraction of the needle holder into a cavity comprising a retraction space within the plunger.
摘要翻译： 永久可自动缩回的流体收集装置具有细长的外部保护管构件，其具有带有端口的前端和同轴伸缩柱塞，所述同轴伸缩柱塞具有前端，用于摩擦地接合用于套针的针保持器。 柱塞滑动地安装在细长管构件中，用于沿轴向方向选择性地朝向和远离前部移动。 柱塞的前端具有开口，该开口具有向内的表面，用于沿着可滑动的轴向定向的界面摩擦地接合针保持器的周边的向外表面。 当柱塞向前移动以将针从端口延伸时，捕捉器将其保持在第一位置。 将摩擦力保持在柱塞前方的针保持器施加偏压力。 样品管可安装在柱塞后部的开口中。 在取样并取出收集管之后，柱塞盖被重新定位以允许柱塞从第一位置移动到第二位置，引起柱塞沿着可滑动界面从针座滑动分离。 偏压力克服了在滑动界面处的剩余摩擦保持力，以使针保持器立即和永久地缩回到包括柱塞内的缩回空间的空腔中。
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公开(公告)号：US11298467B2
公开(公告)日：2022-04-12
申请号：US16286958
申请日：2019-02-27
发明人： Thomas J. Shaw , Ni Zhu , Jordan Duesman
IPC分类号： A61M5/32
摘要： A syringe for medical use, the syringe having a selectively retractable needle and a multifunctional needle holder and retainer ring assembly including a needle holder with a head section having an inwardly tapering frustoconical section of the fluid pathway and a rearwardly facing annular surface surrounding the rear opening, and an elastomeric retainer ring with a substantially unexpanded collar extending rearwardly beyond the rearwardly facing annular surface to increase needle pushout force, reduce activation force and improve fluid flow through the syringe. Annular projections inside the retainer ring and on the outer surface of the head section of the needle holder are also disclosed.
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公开(公告)号：USD914875S1
公开(公告)日：2021-03-30
申请号：US29697962
申请日：2019-07-12
设计人： Thomas J. Shaw , Mark Small
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公开(公告)号：USD914873S1
公开(公告)日：2021-03-30
申请号：US29697951
申请日：2019-07-12
设计人： Thomas J. Shaw , Mark Small
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公开(公告)号：USD914871S1
公开(公告)日：2021-03-30
申请号：US29697942
申请日：2019-07-12
设计人： Thomas J. Shaw , Mark Small
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公开(公告)号：US20200086063A1
公开(公告)日：2020-03-19
申请号：US16569373
申请日：2019-09-12
发明人： Thomas J. Shaw , Kathryn Duesman , Mark Small , Ni Zhu
摘要： A device configured to receive and safely store a plurality of used needle-containing medical apparatus such as syringes, IV catheter introducers, bodily fluid collection devices and blood collection tube holders and to dispense a sterile medical apparatus having the same or a similar shape, size and configuration as that deposited into the device.
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公开(公告)号：US20190125980A1
公开(公告)日：2019-05-02
申请号：US15797713
申请日：2017-10-30
发明人： Thomas J. Shaw , Mark Small
摘要： A frontal attachment for a conventional aspirating dental syringe comprising a barrel connector housing releasably attachable to the front end of the barrel of an aspirating dental syringe, an injection needle guide attached to the barrel connector housing, an injection needle attached to and supported by a needle holder assembly reciprocatably disposed in a needle guide slot between the injection needle guide and the barrel connector housing in oblique relation to the longitudinal axis of the aspirating dental syringe, and a second needle projecting rearwardly from the barrel connector housing to establish fluid communication with a carpule disposed in the conventional aspirating dental syringe.
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公开(公告)号：US20190090798A1
公开(公告)日：2019-03-28
申请号：US15713284
申请日：2017-09-22
发明人： Thomas J. Shaw , Mark Small
摘要： A medical device useful for collecting samples of a bodily fluid, typically a vascular fluid such as blood. The subject device can also be used for infusing liquids into a patient. The fluid flow path desirably includes a forwardly projecting, rearwardly biased needle, a needle holder and a length of plastic tubing, the forwardly extending end of which is configured to function as a fluid seal to reduce the likelihood of fluid leakage during or after use. Following use, the needle is retractable from the patient by sliding a needle retraction cavity transversely into longitudinal alignment with the needle, thereby disrupting the fluid flow path and propelling the needle rearwardly so that it no longer projects from the device.
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