| US3985140A
              (en)
            
            * | 1975-06-30 | 1976-10-12 | Cordis Corporation | Dual pressure valve for use in ventricular shunt system | 
        
          | US4840617A
              (en)
            
            * | 1980-04-14 | 1989-06-20 | Thomas Jefferson University | Cerebral and lumbar perfusion catheterization apparatus for use in treating hypoxic/ischemic neurologic tissue | 
        
          | US4413985A
              (en)
            
            * | 1981-09-02 | 1983-11-08 | The United States Of America As Represented By The Dept. Of Health & Human Services | Hydrocephalic antenatal vent for intrauterine treatment (HAVIT) | 
        
          | FR2539299B1
              (fr)
            
            * | 1983-01-14 | 1986-06-06 | Descartes Paris V Universite R | Dispositif de traitement de l'hydrocephalie avec filtre a impedance variable | 
        
          | US4534758A
              (en)
            
            * | 1983-07-15 | 1985-08-13 | Eli Lilly & Company | Controlled release infusion system | 
        
          | US4776838A
              (en)
            
            * | 1983-12-08 | 1988-10-11 | Cordis Corporation | Three stage valve | 
        
          | US4583967A
              (en)
            
            * | 1984-02-13 | 1986-04-22 | Cordis Corporation | Telescoping catheter shunt system | 
        
          | US4627832A
              (en)
            
            * | 1984-05-08 | 1986-12-09 | Cordis Corporation | Three stage intracranial pressure relief valve having single-piece valve stem | 
        
          | US4714458A
              (en)
            
            * | 1985-12-23 | 1987-12-22 | Cordis Corporation | Three stage valve with flexible valve seat | 
        
          | US4675003A
              (en)
            
            * | 1985-12-23 | 1987-06-23 | Cordis Corporation | Three stage pressure regulator valve | 
        
          | US4714459A
              (en)
            
            * | 1985-12-23 | 1987-12-22 | Cordis Corporation | Three stage intracranial pressure control valve | 
        
          | US4729762A
              (en)
            
            * | 1985-12-23 | 1988-03-08 | Cordis Corporation | Three stage implantable pressure relief valve with adjustable valve stem members | 
        
          | US4681559A
              (en)
            
            * | 1985-12-23 | 1987-07-21 | Cordis Corporation | Plural valve three stage pressure relief system | 
        
          | US4676772A
              (en)
            
            * | 1985-12-23 | 1987-06-30 | Cordis Corporation | Adjustable implantable valve having non-invasive position indicator | 
        
          | US4621654A
              (en)
            
            * | 1986-02-03 | 1986-11-11 | Holter John W | Attitude and pressure responsive valve | 
        
          | US4673384A
              (en)
            
            * | 1986-04-14 | 1987-06-16 | Sophysa | Valve for the treatment of hydrocephalus | 
        
          | US4776839A
              (en)
            
            * | 1986-10-21 | 1988-10-11 | Cordis Corporation | Three stage implantable pressure relief valve with improved valve stem member | 
        
          | US4781672A
              (en)
            
            * | 1986-10-21 | 1988-11-01 | Cordis Corporation | Three stage implantable flow control valve with improved valve closure member | 
        
          | US4795437A
              (en)
            
            * | 1987-01-29 | 1989-01-03 | Pudenz-Schulte Medical Research Corporation | Siphon control device | 
        
          | US4883456A
              (en)
            
            * | 1988-02-22 | 1989-11-28 | Holter John W | Attitude and pressure responsive valve | 
        
          | US4861331A
              (en)
            
            * | 1988-03-24 | 1989-08-29 | Pudenz-Schulte Medical Research Corp. | Implantable shunt system and method of assembly | 
        
          | US4867740A
              (en)
            
            * | 1988-03-24 | 1989-09-19 | Pudenz-Schulte Medical Research Corp. | Multiple-membrane flow control valve and implantable shunt system | 
        
          | US5069663A
              (en)
            
            * | 1988-10-11 | 1991-12-03 | Cordis Corporation | Hydrocephalus valve | 
        
          | US5192265A
              (en)
            
            * | 1990-12-10 | 1993-03-09 | Hsc Research & Development Limited Partnership | Adjustable-resistance anti-siphon device | 
        
          | FR2685206B1
              (fr)
            
            * | 1991-12-19 | 1998-03-06 | Cordis Sa | Dispositif de drainage implantable pour le traitement de l'hydrocephalie. | 
        
          | EP0617975B1
              (fr)
            
            * | 1992-01-22 | 1997-08-20 | Cordis S.A. | Valve de drainage implantable pour le traitement de l'hydrocéphalie | 
        
          | FR2686254B1
              (fr)
            
            * | 1992-01-22 | 1998-06-26 | Cordis Sa | Valve de drainage implantable pour le traitement de l'hydrocephalie. | 
        
          | FR2695564B1
              (fr)
            
            * | 1992-09-15 | 1994-12-02 | Cordis Sa | Valve implantable pour le traitement de l'hydrocéphalie. | 
        
          | US5405316A
              (en)
            
            * | 1993-11-17 | 1995-04-11 | Magram; Gary | Cerebrospinal fluid shunt | 
        
          | US5683357A
              (en)
            
            * | 1995-12-01 | 1997-11-04 | Magram; Gary | External cerebrospinal fluid drain apparatus | 
        
          | US5634894A
              (en)
            
            * | 1995-12-01 | 1997-06-03 | The Nemours Foundation | Antisiphoning valve | 
        
          | FR2746658B1
              (fr)
            
            * | 1996-03-26 | 1998-06-19 | Cordis Sa | Valve de drainage implantable pour le traitement de l'hydrocephalie | 
        
          | US6383159B1
              (en) | 1998-11-10 | 2002-05-07 | Eunoe, Inc. | Devices and method for removing cerebrospinal fluids from a patient's CSF space | 
        
          | US20030004495A1
              (en)
            
            * | 1996-07-11 | 2003-01-02 | Eunoe, Inc. | Apparatus and methods for volumetric CSF removal | 
        
          | US7189221B2
              (en)
            
            * | 1998-11-10 | 2007-03-13 | Integra Life Sciences Corporation | Methods for the treatment of a normal pressure hydrocephalus | 
        
          | US6875192B1
              (en) | 1998-11-10 | 2005-04-05 | Eunoe, Inc. | Devices and methods for removing cerebrospinal fluids from a patient's CSF space | 
        
          | US6383160B1
              (en) | 1999-04-29 | 2002-05-07 | Children's Medical Center Corporation | Variable anti-siphon valve apparatus and method | 
        
          | US6533733B1
              (en) | 1999-09-24 | 2003-03-18 | Ut-Battelle, Llc | Implantable device for in-vivo intracranial and cerebrospinal fluid pressure monitoring | 
        
          | WO2001054752A1
              (en) | 2000-01-27 | 2001-08-02 | Eunoe, Inc. | Devices and methods for removing cerebrospinal fluids from a patient's csf space | 
        
          | US7025739B2
              (en)
            
            * | 2001-08-09 | 2006-04-11 | Integra Lifesciences Corporation | System and method for treating elevated intracranial pressure | 
        
          | AU2003211060A1
              (en)
            
            * | 2002-02-15 | 2003-09-09 | Eunoe, Inc. | Systems and methods for flow detection and measurement in csf shunts | 
        
          | US9694166B2
              (en) | 2002-03-26 | 2017-07-04 | Medtronics Ps Medical, Inc. | Method of draining cerebrospinal fluid | 
        
          | US7282040B2
              (en)
            
            * | 2002-12-24 | 2007-10-16 | Vygon Us, Llc | Gravitational pressure regulating mechanism | 
        
          | US7118549B2
              (en)
            
            * | 2003-10-31 | 2006-10-10 | Codman & Shurtleff, Inc. | Shunt system including a flow control device for controlling the flow of cerebrospinal fluid out of a brain ventricle | 
        
          | DK1613388T3
              (da)
            
            * | 2004-03-27 | 2008-03-25 | Christoph Miethke Gmbh & Co Kg | Indstillelig hydrocephalus-ventil | 
        
          | US7559912B2
              (en)
            
            * | 2004-09-30 | 2009-07-14 | Codman & Shurtleff, Inc. | High pressure range hydrocephalus valve system | 
        
          | US20060224102A1
              (en)
            
            * | 2005-04-05 | 2006-10-05 | Codman & Shurtleff, Inc | Subarachnoid epidural shunt | 
        
          | US8002730B2
              (en) | 2005-04-29 | 2011-08-23 | Medtronic, Inc. | Anti-thrombogenic venous shunt system and method | 
        
          | US20070198026A1
              (en)
            
            * | 2006-02-23 | 2007-08-23 | Cauthen Joseph C | Medical device support and stabilizer | 
        
          | US20070219535A1
              (en)
            
            * | 2006-03-17 | 2007-09-20 | Phung Trinh D | Chest drainage anti-spill coupling | 
        
          | US20080082036A1
              (en)
            
            * | 2006-04-25 | 2008-04-03 | Medtronic, Inc. | Cerebrospinal fluid shunt having long term anti-occlusion agent delivery | 
        
          | US10632237B2
              (en) | 2006-10-09 | 2020-04-28 | Minnetronix, Inc. | Tangential flow filter system for the filtration of materials from biologic fluids | 
        
          | US8435204B2
              (en) | 2006-10-09 | 2013-05-07 | Neurofluidics, Inc. | Cerebrospinal fluid purification system | 
        
          | US10850235B2
              (en) | 2006-10-09 | 2020-12-01 | Minnetronix, Inc. | Method for filtering cerebrospinal fluid (CSF) including monitoring CSF flow | 
        
          | DE102009060533B4
              (de)
            
            * | 2009-12-23 | 2019-07-11 | Christoph Miethke Gmbh & Co Kg | Implantierbares Shuntsystem | 
        
          | WO2011114260A1
              (en) | 2010-03-19 | 2011-09-22 | Pfizer Inc. | Cerebrospinal fluid purification system | 
        
          | GB2491142A
              (en) | 2011-05-24 | 2012-11-28 | Centrax Ltd | A valve assembly for hydrocephalus shunt systems | 
        
          | JP6253164B2
              (ja)
            
            * | 2012-07-23 | 2017-12-27 | アーキス バイオサイエンシーズ | シャントシステム内静水圧調整装置 | 
        
          | US20140276348A1
              (en)
            
            * | 2013-03-13 | 2014-09-18 | DePuy Synthes Products, LLC | Bi-phase fluid surge suppressor device | 
        
          | US10322267B2
              (en) | 2013-03-15 | 2019-06-18 | Carlos A. Hakim | Externally programmable valve assembly | 
        
          | US9242078B2
              (en) | 2013-04-22 | 2016-01-26 | King Abdulaziz University | CSF shunt valve | 
        
          | US11147540B2
              (en) | 2015-07-01 | 2021-10-19 | Minnetronix, Inc. | Introducer sheath and puncture tool for the introduction and placement of a catheter in tissue | 
        
          | EP3331586B1
              (en) | 2015-08-05 | 2020-04-29 | Minnetronix Inc. | Tangential flow filter system for the filtration of materials from biologic fluids | 
        
          | JP6654242B2
              (ja) | 2015-12-04 | 2020-02-26 | ミネトロニクス, インコーポレイテッド | 脳脊髄液を処置するためのシステム | 
        
          | US11752315B1
              (en) | 2016-10-07 | 2023-09-12 | Carlos A. Hakim | Method of treating normal pressure hydrocephalus | 
        
          | US12005215B2
              (en) | 2017-04-06 | 2024-06-11 | Christoph Miethke Gmbh & Co Kg | Flow reducer | 
        
          | US11045632B2
              (en)
            
            * | 2017-04-24 | 2021-06-29 | Longeviti Neuro Solutions Llc | Cerebral spinal fluid shunt plug | 
        
          | US11439798B2
              (en) | 2017-04-24 | 2022-09-13 | Longeviti Neuro Solutions Llc | Cerebral spinal fluid shunt plug | 
        
          | RU2732346C1
              (ru)
            
            * | 2020-02-13 | 2020-09-15 | Дмитрий Михайлович Хатомкин | Гравитационный регулятор потока жидкостей и газов | 
        
          | US20230347119A1
              (en)
            
            * | 2020-10-28 | 2023-11-02 | Medtronic Ps Medical, Inc. | System and method for a valve | 
        
          | US11844893B2
              (en)
            
            * | 2021-01-17 | 2023-12-19 | Inspire M.D Ltd. | Shunts with blood-flow indicators | 
        
          | US12066117B2
              (en) | 2021-05-26 | 2024-08-20 | Waters Technologies Corporation | Check valve having a spherical loading element |