公开(公告)号：US20030135165A1

公开(公告)日：2003-07-17

申请号：US10364098

申请日：2003-02-11

发明人： Milton Chernack

IPC分类号： A61M005/00

CPC分类号： A61M39/24 ,  A61M5/007 ,  A61M5/1452 ,  A61M31/005 ,  A61M2039/242 ,  A61M2039/2473 ,  A61M2039/248 ,  A61M2209/045

摘要： A contrast fluid delivery method and system includes a multiple-reuse filling section for attachment by conduit to a contrast fluid supply container, and a delivery section that is removably attached to the filling section for delivering contrast fluid held in the filling section to a patient. The filling section includes a main body having a fluid chamber, a contrast fluid filling inlet with a gravity-operated valve, an opening for connecting an operable power syringe, and a contrast fluid outlet fed through a spring-loaded one-way check valve. The delivery section includes a first delivery conduit connected between the contrast fluid outlet of the main body and the fluid inlet of an inline aspirator syringe, and a second delivery conduit connected at one end to a fluid outlet of the aspirator syringe and at the other to a catheter for delivering the contrast fluid to a patient. The aspirator syringe includes a spring-loaded plunger that is operatively depressed and released to confirm and assure patency of the delivery line before sustained injection of the desired volume of contrast agent. The filling section is isolated from contamination by the downstream delivery section and may be used repeatedly for successive patients, whereas the delivery section is discarded and replaced after each patient use.

公开(公告)号：US20020120230A1

公开(公告)日：2002-08-29

申请号：US10122116

申请日：2002-04-12

发明人： Scott Miles ,  Kent F. Beck ,  James Malmstrom

IPC分类号： A61M005/14

CPC分类号： A61M5/16813 ,  A61M5/14 ,  A61M5/142 ,  A61M5/14228 ,  A61M5/14232 ,  A61M39/22 ,  A61M39/24 ,  A61M39/281 ,  A61M39/287 ,  A61M2039/242 ,  A61M2039/2426 ,  A61M2039/2473 ,  A61M2039/248 ,  A61M2039/2486 ,  A61M2205/12 ,  Y10T137/87917

摘要： An apparatus and method for preventing free flow through an infusion set utilizes an occluder disposed within the infusion set to selectively prevent flow therethrough. The occluder may be responsive to a pressure differential within the infusion set or may respond to compression of the infusion set. When a pair of occluders are used in sequence, an in-line pump may be formed.

公开(公告)号：US4038983A

公开(公告)日：1977-08-02

申请号：US652938

申请日：1976-01-26

申请人： Herbert Mittleman ,  Ricky Robert Ruschke

发明人： Herbert Mittleman ,  Ricky Robert Ruschke

IPC分类号： A61M5/36 ,  A61M5/14 ,  A61M5/142 ,  A61M39/24 ,  F04B9/14 ,  F04B13/00 ,  F16K15/14

CPC分类号： A61M5/1424 ,  A61M39/24 ,  F16K15/147 ,  A61M2005/1403 ,  A61M2039/2426 ,  A61M2039/2473 ,  A61M2039/248

摘要： A flow system for infusing a fluid such as blood from a storage reservoir into the human body includes a hand-operated pump for increasing the flow rate of the fluid through the system when required. The pump includes a duckbill-type valve assembly user-conditionable to an open position wherein fluid can pass freely through the valve and air trapped in the housing of the pump can be purged upline to the reservoir, and to a closed position wherein reverse flow of fluid in the system is prevented during operation of the pump.

摘要翻译： 用于将诸如来自储存器的血液的流体输入人体的流动系统包括用于在需要时增加通过系统的流体的流速的手动泵。 该泵包括一个鸭嘴型阀门组件，用户可以在打开位置进行打开，其中流体可以自由地通过阀门，并且捕获在泵壳体中的空气可以被上升到储存器，并且到关闭位置， 在泵的运行期间防止了系统中的流体。

公开(公告)号：US3557778A

公开(公告)日：1971-01-26

申请号：US3557778D

申请日：1968-11-18

申请人： ELBERT L HUGHES

发明人： HUGHES ELBERT L

IPC分类号： A61B5/15 ,  A61M39/24 ,  A61M1/00

CPC分类号： A61B5/15003 ,  A61B5/150221 ,  A61B5/150259 ,  A61B5/150351 ,  A61B5/150389 ,  A61B5/150496 ,  A61B5/154 ,  A61M39/24 ,  A61M2039/242 ,  A61M2039/2473 ,  A61M2039/248

摘要： A blood specimen collection assembly having a fluid inlet and a fluid outlet with valve means disposed within the assembly for movement to and from an open and closed position whereby to prevent the backflow of testing fluid from a specimen receptacle, which is coupled with the assembly, into the patient''s bloodstream during use of the assembly. The specimen receptacle is in the form of an evacuated container and is coupled with the collection assembly when the same is in use, the receptacle being in communication with the assembly to provide negative pressure through the assembly for opening the valve and withdrawing the specimen, the valve resuming its closed position upon filling of the receptacle.

公开(公告)号：US12011566B2

公开(公告)日：2024-06-18

申请号：US16803216

申请日：2020-02-27

申请人： Medtronic, Inc.

发明人： Michael E. Winek

IPC分类号： A61M5/142 ,  A61M5/168 ,  A61M39/06 ,  A61M39/24

CPC分类号： A61M5/14276 ,  A61M5/16881 ,  A61M39/06 ,  A61M39/24 ,  A61M2005/14208 ,  A61M2039/0646 ,  A61M2039/0666 ,  A61M2039/248 ,  A61M2205/3331 ,  A61M2205/3515 ,  A61M2205/581 ,  A61M2205/582 ,  A61M2205/583

摘要： An implantable medical pump system configured to selectively permit access to a medicament reservoir by way of at least one contactless key, including an implantable medical pump having an medicament reservoir fluidly couple to an access port via a conduit including an access valve, and at least one contactless key configured to impart a magnetic field upon a portion of the implantable medical pump to manipulate the access valve between a closed position isolating the medicament reservoir from the access port, and an open position fluidly coupling the medicament reservoir to the access port.

公开(公告)号：US11890450B2

公开(公告)日：2024-02-06

申请号：US16297408

申请日：2019-03-08

申请人： AMGEN INC.

发明人： Lawrence Scott Ring ,  Tohid Pirbodaghi ,  Samin Akbari ,  Daniel Eduardo Groszmann ,  Mehran Mojarrad ,  Mark Gordon ,  Mikhail Tikh ,  Jimmie L. Ward ,  Scott R. Gibson ,  Sheldon B. Moberg ,  Joshua Tamsky ,  Paul Faucher ,  Jeff Lind

IPC分类号： A61M5/168 ,  A61M5/14 ,  A61M5/142 ,  A61M5/158 ,  A61M39/24 ,  A61M5/145 ,  A61M5/155

CPC分类号： A61M5/16813 ,  A61M5/1413 ,  A61M5/14248 ,  A61M5/158 ,  A61M5/16822 ,  A61M39/24 ,  A61M5/14526 ,  A61M5/155 ,  A61M2005/1403 ,  A61M2005/1406 ,  A61M2005/14252 ,  A61M2039/244 ,  A61M2039/2406 ,  A61M2039/248 ,  A61M2039/2426 ,  A61M2205/3561 ,  A61M2205/505 ,  A61M2205/7527 ,  A61M2205/7536 ,  A61M2209/045

摘要： A drug delivery device includes a housing defining a shell and an inner volume, a container, a drive mechanism, a needle assembly, a fluid flow connection, and a backflow prevention mechanism. The container has an inner volume to contain a medicament to be administered to a user. The drive mechanism is at least partially disposed within the housing and exerts a force to urge the medicament out the container. The fluid flow connection is coupled to the container and the needle assembly and allows the medicament to flow from the container to the needle assembly to be administered. The backflow prevention mechanism is associated with at least one of the container, the fluid flow connection, or the needle assembly and includes at least one flow restrictor to restrict a fluid from flowing from the needle assembly to the container.

公开(公告)号：US11833326B2

公开(公告)日：2023-12-05

申请号：US17319303

申请日：2021-05-13

申请人： Enable Injections, Inc.

发明人： Adam Dunki-Jacobs ,  David Stefanchik

IPC分类号： A61M39/24 ,  A61M5/148 ,  A61M5/152 ,  A61M5/168 ,  A61M5/178 ,  A61M5/20 ,  F04B43/08 ,  F04B53/10 ,  F16K7/07

CPC分类号： A61M5/16818 ,  A61M5/1486 ,  A61M5/152 ,  A61M5/168 ,  A61M5/16804 ,  A61M5/16813 ,  A61M5/16881 ,  A61M5/178 ,  A61M5/20 ,  A61M39/24 ,  F04B43/08 ,  F04B53/1002 ,  F04B53/1075 ,  F16K7/075 ,  A61M2039/242 ,  A61M2039/248 ,  A61M2039/2433 ,  A61M2039/2473 ,  A61M2205/0216 ,  A61M2205/7536

摘要： A fluid flow control valve includes a valve body with a fluid flow lumen therethrough and a valve member located within the fluid flow lumen. At least one of the valve body and the valve member is resilient and respectively sized for movement between a normally closed position in which the valve member and a fluid lumen surface are in sufficient annular contact to block fluid flow through the fluid flow lumen and an open position in which at least one of the valve body and the valve member flexes to a spaced apart position that allows the fluid flow between the valve body and the valve member. Downstream fluid pressure may contact the valve body to enhance sealing. A fluid absorbent member may also be employed with the valve body. Flow control devices, such as medical fluid injection devices, and methods may employ the valve.

公开(公告)号：US20230310760A1

公开(公告)日：2023-10-05

申请号：US18173959

申请日：2023-02-24

申请人： 410 Medical, Inc.

发明人： Galen C. ROBERTSON ,  Andrew W. LANE ,  Savannah K. CARLSEN ,  Mark D. PIEHL ,  Robert W. TITKEMEYER ,  Stephen LATHAM ,  Douglas RODENKIRCH ,  Jesse DARLEY ,  Curtis IRWIN ,  Amrish CHOURASIA

IPC分类号： A61M5/40 ,  A61M5/142 ,  A61J1/10 ,  F16K7/12 ,  B01D19/00 ,  A61M39/24

CPC分类号： A61M5/40 ,  A61M5/14216 ,  A61M5/1424 ,  A61J1/10 ,  F16K7/12 ,  B01D19/0031 ,  A61M39/24 ,  A61M2039/248 ,  A61M2205/7536

摘要： In some embodiments, a housing can define a reservoir. A lower cap can be coupled to the housing and define an outlet, and an upper cap can be coupled to the housing and can define an inlet. The upper cap can include an extending portion extending laterally a distance beyond an outermost extending portion of the lower cap relative to a central axis of the housing such that, when the lower cap and the extending portion of the upper cap contact a horizontal surface, the central axis of the housing is transverse to the surface and a sealing member is configured to sealingly engage a sealing surface of a valve seat prior to a liquid fluid level within a reservoir decreasing below a minimum threshold fluid level.

公开(公告)号：US20230264011A1

公开(公告)日：2023-08-24

申请号：US18308739

申请日：2023-04-28

申请人： Fresenius Medical Care Holdings, Inc.

发明人： Jon F. Moss ,  Bert D. Egley

IPC分类号： A61M39/24 ,  A61M1/26 ,  F16K1/14 ,  F16K5/04 ,  A61M39/22 ,  A61M1/16 ,  A61M1/28

CPC分类号： A61M39/24 ,  A61M1/1656 ,  A61M1/267 ,  A61M1/28 ,  A61M39/223 ,  F16K1/14 ,  F16K5/04 ,  A61M2039/226 ,  A61M2039/229 ,  A61M2039/242 ,  A61M2039/2473 ,  A61M2039/248 ,  A61M2039/2493 ,  A61M2205/128

摘要： In one aspect, a valve includes an interior channel for permitting a fluid to flow through the valve and an opening to the interior channel, the opening including a circular portion and a tapered portion adjacent the circular portion, the tapered portion having a maximum width that is less than a diameter of the circular portion, wherein the valve is rotatable about a central axis of the valve to adjust a position of a cross-sectional area of the opening with respect to a cross-sectional area of an inlet fluid line positioned to deliver the fluid to the rotary valve.

公开(公告)号：US11666745B2

公开(公告)日：2023-06-06

申请号：US16662601

申请日：2019-10-24

申请人： Fresenius Medical Care Holdings, Inc.

发明人： Jon F. Moss ,  Bert D. Egley

IPC分类号： A61M39/22 ,  A61M39/24 ,  A61M1/16 ,  A61M1/28 ,  F16K5/04 ,  A61M1/26 ,  F16K1/14

CPC分类号： A61M39/24 ,  A61M1/1656 ,  A61M1/267 ,  A61M1/28 ,  A61M39/223 ,  F16K1/14 ,  F16K5/04 ,  A61M2039/226 ,  A61M2039/229 ,  A61M2039/242 ,  A61M2039/248 ,  A61M2039/2473 ,  A61M2039/2493 ,  A61M2205/128

摘要： In one aspect, a valve includes a valve body rotatable about a central axis of the valve body, an interior channel adjacent the valve body for permitting a fluid to flow through an axial opening of the interior channel, and a plug within the interior channel that is movable between a first axial position at the axial opening and a second axial position spaced apart from the axial opening. In the first axial position, the plug closes the axial opening to prevent the fluid from flowing through the axial opening in a first direction and to prevent the fluid from flowing through the axial opening in a second direction that is opposite to the first direction. In the second axial position, the plug permits the fluid to flow through the axial opening into the interior channel in the first direction.