公开(公告)号：US5931813A

公开(公告)日：1999-08-03

申请号：US998495

申请日：1997-12-26

申请人： Wen-Neng Liu

发明人： Wen-Neng Liu

IPC分类号： A61M5/315 ,  A61M5/32 ,  A61M5/00

CPC分类号： A61M5/322 ,  A61M2005/31506 ,  A61M2005/3223 ,  A61M2005/3224 ,  A61M2005/3231

摘要： A retractable and destructible safety syringe including a syringe barrel, a plunger, a needle holder, a needle, capture elements formed on the needle holder or the plunger and a one-way movable detent formed on the plunger or the needle holder. When a piston of the plunger is fully depressed within the syringe barrel, the detent can be easily firmly engaged with the capture elements, whereby the needle holder and the needle can be together pulled back into the barrel. In addition, when the fully retracted plunger is depressed again, the tip of the needle is pressed against a shoulder section of the barrel, being bent and destroyed thereby. Sealing fixing rings are formed on outer wall of the needle holder and inner wall of the needle holder cavity, serving to sealably and separably engage the needle holder with the needle holder cavity. A latch plate is disposed between the barrel and the plunger to prevent the plunger from being pushed to latch the capture elements to the detent by mistake.

摘要翻译： 包括注射器筒，柱塞，针保持器，针，形成在针保持器或柱塞上的捕获元件以及形成在柱塞或针保持器上的单向可动棘爪的可伸缩和可破坏的安全注射器。 当柱塞的活塞在注射器筒内完全压下时，棘爪能够容易地与捕获元件牢固地接合，由此针头保持器和针头可以一起被拉回到枪管中。 此外，当完全缩回的柱塞被再次压下时，针的尖端被压靠在筒的肩部，由此被弯曲和破坏。 密封固定环形成在针保持器的外壁和针保持器腔的内壁上，用于将针保持器与针保持器腔密封并可分离地接合。 闩锁板设置在筒体和柱塞之间，以防止柱塞被错误地推动以将捕获元件锁定到棘爪。

公开(公告)号：US5885253A

公开(公告)日：1999-03-23

申请号：US115602

申请日：1998-07-15

申请人： Wen-Neng Liu

发明人： Wen-Neng Liu

IPC分类号： A61M25/00 ,  A61M5/32 ,  A61M25/06 ,  A61M5/178

CPC分类号： A61M25/0631 ,  A61M5/3202 ,  A61M5/322

摘要： An automatic safety infusion catheter needle including: a trifurcate connector having a first and a second connecting sections coaxially aligned with each other. An infusion soft needle inserted on the first connecting section of the trifurcate connector. A steel needle having a needle body slidably fitted in a sleeve and axially passed in the soft needle. The sleeve is connected with the second connecting section of the trifurcate connector. The holder body of the steel needle has a projecting post formed with an air guiding hole for exhausting the air outside and making the liquid medicine smoothly flow into the soft needle. An infusion catheter is serially connected with a third connecting section of the trifurcate connector for infusion of liquid medicine through the soft needle into the body of a patient.

摘要翻译： 一种自动安全输液导管针，包括：具有彼此同轴对准的第一和第二连接部分的三叉连接器。 输入软针插入在三联连接器的第一连接部分上。 一种钢针，其具有可滑动地装配在套筒中并且轴向地穿过软针的针体。 套筒与三相连接器的第二连接部分连接。 钢针的保持体具有形成有用于排出空气的空气引导孔的突出柱，并使药液顺利地流入软针。 输液导管与三叉连接器的第三连接部分串联连接，用于将液体药物通过软针注入患者体内。

公开(公告)号：US06251095B1

公开(公告)日：2001-06-26

申请号：US09469370

申请日：1999-12-22

申请人： Wen-Neng Liu

发明人： Wen-Neng Liu

IPC分类号： A61M5315

CPC分类号： A61M5/322 ,  A61M5/347 ,  A61M2005/31506 ,  A61M2005/3224 ,  A61M2005/323 ,  A61M2005/3231

摘要： Safety syringe with retractable standard needle including a syringe barrel, a plunger and an injection needle. A commonly used standard medical injection needle can be firmly fitted with the needle holder in accordance with the requirement of a user. The inner wall of the internal chamber at the open end of the syringe barrel is formed with an entrance recess extending along the axis of the internal chamber. The operating end of the plunger is formed with a radially outward projecting stopper section for preventing the needle pulling mechanism of the plunger from being accidentally latched with the needle pulling mechanism of the syringe barrel.

摘要翻译： 带可伸缩标准针的安全注射器，包括注射器筒，柱塞和注射针。 通常使用的标准医用注射针可以根据使用者的要求与针架牢固地配合。 在注射器筒的开口端处的内部腔的内壁形成有沿着内部腔的轴线延伸的入口凹部。 柱塞的操作端形成有径向向外突出的止动部分，用于防止柱塞的针拉动机构被注射器筒的针拉动机构意外锁定。

公开(公告)号：US5976108A

公开(公告)日：1999-11-02

申请号：US89262

申请日：1998-06-03

申请人： Wen-Neng Liu

发明人： Wen-Neng Liu

IPC分类号： A61M5/315 ,  A61M5/32 ,  A61M5/34 ,  A61M5/00

CPC分类号： A61M5/322 ,  A61M2005/31506 ,  A61M2005/3224 ,  A61M2005/323 ,  A61M2005/3231 ,  A61M2005/342

摘要： A safety vein syringe with retractable standard needle, including a syringe barrel, a plunger, an injection needle and a guiding mechanism formed between the needle holder and the plunger. By means of the guiding mechanism, the plunger can be only axially moved within the barrel without rotation and two needle pulling members can be easily aligned with each other and latched together. A commonly used standard needle holder is replaceably connected with a second needle holder, whereby a user can replace the injection needle with another type of injection needle as necessary. The first needle pulling member is formed on the needle holder or the plunger, having at least one rotatable click. The second needle pulling member is formed on the plunger or the needle holder, having a detent. When the piston of the plunger is pushed to the bottom, the detent is easily and firmly engaged and hooked with the click. Thereafter, the injection needle and the needle holder can be together pulled into the barrel with the tip of the injection needle positioned under the shoulder section of the barrel. Then the plunger is further pushed to press the tip against the shoulder section and bend the tip so as to destroy the injection needle.

摘要翻译： 一种具有可伸缩标准针的安全静脉注射器，包括注射器筒，柱塞，注射针和形成在针保持器和柱塞之间的引导机构。 通过引导机构，柱塞只能在筒内轴向移动而不旋转，两个拉针构件可以很容易地彼此对准并锁定在一起。 通常使用的标准针架可替换地与第二针保持器连接，由此用户可以根据需要用另一种类型的注射针来替换注射针。 第一针拔出构件形成在针保持器或柱塞上，具有至少一个可旋转的点击。 第二针拉动部件形成在具有棘爪的柱塞或针保持器上。 当活塞的活塞被推到底部时，制动器容易且牢固地接合并且与咔嗒一声挂钩。 此后，注射针和针保持器可以一起被拉入枪管，其中注射针的尖端位于枪管的肩部下方。 然后进一步推动柱塞将尖端压靠在肩部，并使尖端弯曲，从而破坏注射针。

公开(公告)号：US6033385A

公开(公告)日：2000-03-07

申请号：US89261

申请日：1998-06-03

申请人： Wen-Neng Liu

发明人： Wen-Neng Liu

IPC分类号： A61M5/178 ,  A61M5/31 ,  A61M5/315 ,  A61M5/32 ,  A61M5/34

CPC分类号： A61M5/322 ,  A61M2005/3106 ,  A61M2005/31506 ,  A61M2005/31508 ,  A61M2005/3223 ,  A61M2005/3224 ,  A61M2005/323 ,  A61M2005/3231 ,  A61M2005/342 ,  A61M5/346

摘要： A safety vein syringe with retractable special needle, including a syringe barrel, a plunger, an injection needle and a guiding mechanism formed between the needle holder and the plunger. By means of the guiding mechanism, the plunger can be only axially moved within the barrel without rotation and two needle pulling members can be easily aligned with each other and latched together. The first needle pulling member is formed on the needle holder or the plunger, having at least one rotatable click. The second needle pulling member is formed on the plunger or the needle holder, having a detent. When the piston of the plunger is pushed to the bottom, the detent is easily and firmly engaged and hooked with the click. Thereafter, the injection needle and the needle holder can be together pulled into the barrel with the tip of the injection needle positioned under the shoulder section of the barrel. Then the plunger is further pushed to press the tip against the shoulder section and bend the tip so as to destroy the injection needle.

摘要翻译： 一种具有可伸缩专用针的安全静脉注射器，包括注射器筒，柱塞，注射针和形成在针保持器和柱塞之间的引导机构。 通过引导机构，柱塞只能在筒内轴向移动而不旋转，两个拉针构件可以很容易地彼此对准并锁定在一起。 第一针拔出构件形成在针保持器或柱塞上，具有至少一个可旋转的点击。 第二针拉动部件形成在具有棘爪的柱塞或针保持器上。 当活塞的活塞被推到底部时，制动器容易且牢固地接合并且与咔嗒一声挂钩。 此后，注射针和针保持器可以一起被拉入枪管，其中注射针的尖端位于枪管的肩部下方。 然后进一步推动柱塞将尖端压靠在肩部，并使尖端弯曲，从而破坏注射针。

公开(公告)号：US06200294B1

公开(公告)日：2001-03-13

申请号：US09228288

申请日：1999-01-11

申请人： Wen-Neng Liu

发明人： Wen-Neng Liu

IPC分类号： A61M532

CPC分类号： A61M25/0637 ,  A61M5/3243 ,  A61M25/0631 ,  A61M2025/0006

摘要： A multifunctional syringe with safety slide sleeve, including: a connecting tube, a top end of the connecting tube being formed with a needle connecting section for connecting with an injection needle, a bottom end of the connecting tube being connected with an infusion tube, an outer circumference of the connecting tube being formed with a latching groove near the top end thereof, at least one guiding rib being formed on the connecting tube and axially downward extending from a lower side of the latching groove, the guiding rib being downward tapered; and a safety slide sleeve slidably fitted around the infusion tube or the connecting tube, a bottom end of a fitting hole of the slide sleeve being formed with an inward extending latching flange. When the slide sleeve is slided upward, the latching flange is guided by the guiding rib to be smoothly latched in the latching groove of the connecting tube. Accordingly, the injection needle can be totally received and hidden in the slide sleeve so as to avoid impalement or infection of other people with AIDS, hepatitis, etc.

摘要翻译： 一种具有安全滑套的多功能注射器，包括：连接管，连接管的顶端形成有用于与注射针连接的针连接部分，连接管的底端与输液管连接， 连接管的外周在其顶端附近形成有闭锁槽，至少一个引导肋形成在连接管上，并且从锁定槽的下侧轴向向下延伸，导向肋向下锥形; 以及可滑动地安装在输液管或连接管周围的安全滑动套筒，滑动套管的装配孔的底端形成有向内延伸的闩锁凸缘。 当滑动套筒向上滑动时，锁定凸缘由引导肋引导，以平滑地锁定在连接管的锁定槽中。 因此，注射针可以完全接收和隐藏在滑动套筒中，以避免其他人患有艾滋病，肝炎等的刺痛或感染。

公开(公告)号：US5961493A

公开(公告)日：1999-10-05

申请号：US238023

申请日：1999-01-26

申请人： Wen-Neng Liu

发明人： Wen-Neng Liu

IPC分类号： A61M25/06 ,  A61M5/178

CPC分类号： A61M25/0631 ,  A61M5/3202 ,  A61M5/322

摘要： An automatic safety infusion catheter needle including: a trifurcate connector having a first and a second connecting sections coaxially aligned with each other and a third connecting section serially connected with an infusion catheter; an infusion soft needle inserted on the first connecting section of the trifurcate connector; and a steel needle device including a steel needle body and a protective sleeve. A base seat of a bottom end of the steel needle body is normally resiliently and slidably latched in the protective sleeve. A top section of the protective sleeve is snugly fitted with the second connecting section of the trifurcate connector. A needle holder upward projects from the base seat of the steel needle body. A steel needle is coaxially inserted with the needle holer. The steel needle is passed through the top end of the protective sleeve and coaxially fitted in the soft needle. The needle holder is formed with guide hole for guiding a liquid medicine to smoothly flow out. In use, the soft needle together with the steel needle is thrusted into the vein of a patient and then the steel needle body is unlatched from the protective sleeve. At this time, a spring automatically resiliently restores and the steel needle body is bounded and dropped into the protective sleeve and hidden therein so as to facilitate processing of medical waste.

摘要翻译： 一种自动安全输注导管针，包括：具有彼此同轴对准的第一和第二连接部分的三叉连接器和与输注导管串联连接的第三连接部分; 输入软针插入在三联连接器的第一连接部分上; 以及包括钢针体和保护套的钢针装置。 钢针体的底端的基座通常弹性地且可滑动地锁定在保护套筒中。 保护套的顶部与三联接头的第二连接部分紧密配合。 针架从钢针体的基座向上突出。 钢针与针孔同轴插入。 钢针穿过保护套的顶端并同轴地装配在软针上。 针架形成有用于引导液体药物顺利流出的引导孔。 在使用中，将软针与钢针一起推入患者的静脉，然后将钢针体从保护套上解开。 此时，弹簧自动弹性恢复，钢针体被限制并落到保护套中并隐藏在其中，以便于处理医疗废物。

公开(公告)号：US5931815A

公开(公告)日：1999-08-03

申请号：US916929

申请日：1997-08-22

申请人： Wen-Neng Liu

发明人： Wen-Neng Liu

IPC分类号： A61M5/32 ,  A61M25/06 ,  A61M5/00

CPC分类号： A61M25/0637 ,  A61M25/0631 ,  A61M2025/0006 ,  A61M5/3243

摘要： A multifunctional safety infusion set with injection needle retractable in a wing-equipped sheath. The infusion set includes a connecting tube having an upper and a lower engaging sections respectively near top end and bottom end of the connecting tube. The bottom end of the connecting tube is connected with an infusion tube, while the top end thereof is connected with an injection needle. The infusion set further includes a wing-equipped sheath slidably fitted around the connecting tube. When the sheath is slid downward to engage with the lower engaging section of the connecting tube, the injection needle protrudes outside the sheath for injection. After the injection is completed, the sheath is slid upward to engage with the upper engaging section of the connecting tube so as to totally enclose and hide the injection needle in the sheath without protruding outside. Therefore, the accidental impalement of medical personnel is avoided and the safety is ensured.

摘要翻译： 一种多功能安全输液器，注射针可在机翼装备的护套中伸缩。 输液器包括连接管，其具有分别在连接管的顶端和底端附近的上接合部和下接合部。 连接管的底端与输液管连接，而其顶端与注射针连接。 输液器还包括可滑动地装配在连接管周围的装有翼的护套。 当护套向下滑动以与连接管的下接合部分接合时，注射针突出在用于注射的护套的外侧。 注射完成后，护套向上滑动以与连接管的上接合部分接合，以将注射针完全包围并隐藏在护套中而不突出到外部。 因此，避免意外刺伤医务人员，确保安全。

公开(公告)号：US5899887A

公开(公告)日：1999-05-04

申请号：US89259

申请日：1998-06-03

申请人： Wen-Neng Liu

发明人： Wen-Neng Liu

IPC分类号： A61M5/315 ,  A61M5/32 ,  A61M5/34 ,  A61M5/00

CPC分类号： A61M5/322 ,  A61M2005/31506 ,  A61M2005/3224 ,  A61M2005/323 ,  A61M2005/3231

摘要： A safety syringe with retratable standard needle, including a syringe barrel, a plunger and an injection needle. A commonly used standard needle holder is replaceably connected with a second needle holder, whereby a user can conveniently replace the injection needle with another type of injection needle as necessary. A first needle pulling member is formed on the needle holder or the plunger, having at least one rotatable click. A second needle pulling member is formed on the plunger or the needle holder, having a detent. When the piston of the plunger is pushed to the bottom, the detent is easily and firmly engaged and hooked with the click. Thereafter, the injection needle and the needle holder can be together pulled into the barrel so as to ensure that the injection needle will not impale medical personnel or other persons.

摘要翻译： 安全注射器，具有可回收的标准针，包括注射器筒，柱塞和注射针。 通常使用的标准针保持器可替换地与第二针保持器连接，从而用户可以根据需要方便地用另一种类型的注射针替换注射针。 在针保持器或柱塞上形成有至少一个可旋转的点击的第一针拉动构件。 在柱塞或具有止动器的针保持器上形成第二针拉动构件。 当活塞的活塞被推到底部时，制动器容易且牢固地接合并且与咔嗒一声挂钩。 此后，注射针和针保持器可以一起拉入筒中，以确保注射针不会刺穿医护人员或其他人。

公开(公告)号：US5885252A

公开(公告)日：1999-03-23

申请号：US89260

申请日：1998-06-03

申请人： Wen-Neng Liu

发明人： Wen-Neng Liu

IPC分类号： A61M5/32 ,  A61M25/06 ,  A61M5/178

CPC分类号： A61M25/0631 ,  A61M5/3202 ,  A61M5/322

摘要： An automatic safety infusion catheter needle including: a trifurcate connector having a first and a second connecting sections coaxially aligned with each other, the end of the second connecting section being fitted with a rubber cap; an infusion soft needle inserted on the first connecting section of the trifurcate connector; a steel needle having a needle body slidably fitted in a sleeve and axially passed in the soft needle, the sleeve being connected with the second connecting section of the trifurcate connector; and an infusion catheter serially connected with a third connecting section of the trifurcate connector for infusion of liquid medicine through the soft needle into the body of a patient. After injection, the steel needle is withdrawn from the rear side of the sleeve to retract and locate and hide the needle body of the steel needle in the sleeve so as to avoid impalement and infection of the medical personnel and the liquid medicine flowing from the infusion catheter into the trifurcate connector will automatically flow from the first connecting section through the soft needle into the body of the patient. Therefore, the medical personnel can perform the injection procedure leisurely.

摘要翻译： 一种自动安全输液导管针，包括：具有彼此同轴对准的第一和第二连接部分的三叉连接器，所述第二连接部分的端部装配有橡胶帽; 输入软针插入在三联连接器的第一连接部分上; 一种钢针，其具有可滑动地装配在套筒中并且轴向地穿过软针的针体，套筒与三联连接器的第二连接部分连接; 以及输注导管，其与所述三叉连接器的第三连接部分串联连接，用于将液体药物通过所述软针注入患者体内。 注射后，钢针从套筒的后侧退出，缩回并定位并隐藏套管中钢针的针体，以避免医疗人员的冲击和感染以及从输液器流出的液体药物 导管插入三叉连接器将自动从第一连接部分通过软针流入患者体内。 因此，医护人员可以悠闲地进行注射程序。