US3623484A - Telescoping shunt system for physiological fluid - Google Patents

Telescoping shunt system for physiological fluid Download PDF

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US3623484A
US3623484A US843517A US3623484DA US3623484A US 3623484 A US3623484 A US 3623484A US 843517 A US843517 A US 843517A US 3623484D A US3623484D A US 3623484DA US 3623484 A US3623484 A US 3623484A
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catheter
sleeves
tubular
retaining sleeves
outer sleeve
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US843517A
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Rudolf R Schulte
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Baxter International Inc
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Assigned to AMERICAN HOSPITAL SUPPLY CORPORATION; A CORP OF IL. reassignment AMERICAN HOSPITAL SUPPLY CORPORATION; A CORP OF IL. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: AMERICAN HEYER- SCHULTE CORPORATION
Assigned to AMERICAN HEYER-SCHULTE CORPORATION reassignment AMERICAN HEYER-SCHULTE CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HEYER-SCHULTE CORPORATION
Assigned to BAXTER TRAVENOL LABORATORIES, INC. A CORP. OF DE reassignment BAXTER TRAVENOL LABORATORIES, INC. A CORP. OF DE MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE ON 11/25/1985 ILLINOIS Assignors: AMERICAN HOSPITAL SUPPLY CORPORATION INTO
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Assigned to BAXTER INTERNATIONAL INC. reassignment BAXTER INTERNATIONAL INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE ON 10/17/1988 Assignors: BAXTER TRAVENOL LABORATORIES, INC., A CORP. OF DE
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10—Tube connectors; Tube couplings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
    • A61M27/002—Implant devices for drainage of body fluids from one part of the body to another
    • A61M27/006—Cerebrospinal drainage; Accessories therefor, e.g. valves

Definitions

  • ABSTRACT This invention relates to an auxiliary device for use with and in physiological shunt circuits for the drainage of unwanted fluids from one part of the body to another.
  • a telescopic section is incorporated into a shunt catheter so that when one end of the system is implanted in an area of the body to be drained (such as the ventricles of the brain) and the other end of the system is implanted in a portion of the body into which the fluid must be drained (such as the heart), then, when there is bodily growth which would require elongation of the system, the telescopic portion will elongate and thus prolong the period before the system or some part of it must be replaced to compensate for nonnal growth.
  • the catheter incorporating the telescopic section is made in two segments having flanged ends which contact the inside of a silicone rubber cylinder and are fluidtight, but can move longitudinally under tensile loads applied as a consequence of the growth of the child.
  • the flanged ends may be radiopaque in order that the elongation may be checked by X- ray. These ends are held against withdrawal.
  • TELESCOPING SHUNT SYSTEM FOR PHYSIOLOGICAL FLUID to auxiliary devices for use in Still another object of the invention is to provide means on ic portion and thereby providing elongation.
  • FIG. 1 shows the presently preferred embodiment of the invention in the body ofa child
  • F IG. 2 is a cross section of a portion of the invention shown in Fig. 1, taken at line 2 2 therein;
  • FIG. 3 is a cross section taken at line 3-ofFlG. 2.
  • a telescopic catheter 10 as shown in FIG. 1, is incoris fixed to the body at a location between the two ends of one arm of the system (the arm sometimes herein called a drainage catheter"), which arm is divided into two adjacent portions in this device.
  • the portions of the drainage catheter are called the proximal catheter l1 and the distal catheter 12.
  • the proximal catheter 1] and the distal catheter 12 have enlarged cylindrical flanges l3 and 14 which act as pistons and make a sliding sealing fit inside of retainer sleeves l and 16.
  • Flanges l3 and 14 may be made radiopaque by applying a coating of, or by impregnation with, radiopaque material such as barium sulfate in order to visualize the flanges to X-ray in the implanted device.
  • An outer sleeve 17 encases the retaining sleeves l5 and 16.
  • the three sleeves may be held assembled by an air-curing silicone rubber cement. All sleeves and the catheter tubes 11 and 12 may conveniently be made of silicone rubber.
  • another catheter 18 (sometimes herein called a drainage catheter) is implanted so as to drain a region having unwanted fluids, such as the ventricles of the brain in cases of hydrocephalus.
  • This catheter has a central passage and openings thereinto so as to collect fluid from this region.
  • the proximal catheter portion 11 is sutured to the lozenge 19, which fixes its free end.
  • Retainer sleeve 16 is sutured to the jugular vicinity by attachment of a suture to a groove 19a this suturing being done at the end 20, and these will become encased in fibrous tissue in the superior vena cava, and thereby prevent too-easy withdrawal therefrom.
  • the flanges are held against removal by the reduced portions 22 and 23, which are smaller than the flanges, so the device cannot be disassembled by an axial pull.
  • This telescopic joint markedly improves the function of the for example, in a single-line patent, wherein no pump is used.
  • the device is easily manufactured, and elegant in concept.
  • a catheter for use in a physiological fluid shunt system comprising: a first and a second tubular catheter each of said tubular retaining sleeves having a cylindrical inner wall with a reduced end adapted to overhang and retain against removal a respective one of said flanges and to make a close engagement with the outer wall of the respective catheter portion, said flanges making a sliding fluid-sealing fit with respective inner walls of said retaining sleeves; and an outer sleeve, said outer sleeve being bonded to and joining together and fluidly sealing the retaining sleeves, the retaining sleeves projecting beyond the ends of the outer sleeve.
  • a catheter according to claim 1 in which a groove is provided in the outer wall of one of said retainer sleeves to provide a point of attachment for a suture.
  • a catheter according to claim 1 in which one of said catheter portions carries protrusions on its surface near its end away from the sleeves, said protrusions being adapted to engage with fibrous body materials to prevent too-easy withdrawal.
  • a catheter according to claim 3 in which said enlarged shoulders on said tubular catheter are radiopaque, and in which the catheter and said sleeves are made of silicone rubber.
  • a physiological fluid shunt system which comprises: a
  • telescopic coupling means comprising: an enlarged cylindrical flange on each of the catheter portions; a pair of tubular retaining sleeves, each of said tubular retaining sleeves having a cylindrical inner wall with a reduced end adapted to overhang and retain against removal a respective one of the said flanges and to make a close engagement with the outer wall of the respective catheter portion, said flanges making a sliding fluid-sealing fit with respective inner walls of said retaining sleeves; and an outer sleeve, said outer sleeve being bonded to and joining together and fluidly sealing the retaining sleeves, the retaining sleeves projecting beyond the ends of the outer sleeve.
  • a system according to claim 7 in which a vided in the outer wall of one of said vide a point of attachment for a suture.
  • one of said catheter portions carries protrusions on its surface near its end away from the sleeves, said protrusions being adapted to engage with fibrous body materials to prevent too-easy withdrawal.

Abstract

This invention relates to an auxiliary device for use with and in physiological shunt circuits for the drainage of unwanted fluids from one part of the body to another. According to this invention a telescopic section is incorporated into a shunt catheter so that when one end of the system is implanted in an area of the body to be drained (such as the ventricles of the brain) and the other end of the system is implanted in a portion of the body into which the fluid must be drained (such as the heart), then, when there is bodily growth which would require elongation of the system, the telescopic portion will elongate and thus prolong the period before the system or some part of it must be replaced to compensate for normal growth. The catheter incorporating the telescopic section is made in two segments having flanged ends which contact the inside of a silicone rubber cylinder and are fluidtight, but can move longitudinally under tensile loads applied as a consequence of the growth of the child. The flanged ends may be radiopaque in order that the elongation may be checked by X-ray. These ends are held against withdrawal.

Description

United States Patent [72] Inventor Rudolf R. Schulte 3328 Calle Fresno, Santa Barbara, Calif. 93105 [21] Appl. No. 843,517 [22] Filed July 22, 1969 [45] Patented Nov. 30, 1971 x [54] TELESCOPING SHUNT SYSTEM FOR PHYSIOLOGICAL FLUID 9 Claims, 3 Drawing Figs. [52] 0.8. CI 128/350 R, 285/302 51 lnt.Cl .4 ....A6lm 27/00 [50] Field oiSearch 128/350, 350 V; 285/302 56] References Cited UNITED STATES PATENTS 330,392 11/1885 Gray 285/302X 358,074 2/1887 Ryan 285/302 1,130,358 3/l9l5 Whitney 285/302 3,456,965 7/1969 Gajewski et aL. 128/334 X 3,492,996 2/1970 Fountain 128/350 Primary Examiner-Dalton L. Truluck Attorney-Angus & Mon
ABSTRACT: This invention relates to an auxiliary device for use with and in physiological shunt circuits for the drainage of unwanted fluids from one part of the body to another. According to this invention a telescopic section is incorporated into a shunt catheter so that when one end of the system is implanted in an area of the body to be drained (such as the ventricles of the brain) and the other end of the system is implanted in a portion of the body into which the fluid must be drained (such as the heart), then, when there is bodily growth which would require elongation of the system, the telescopic portion will elongate and thus prolong the period before the system or some part of it must be replaced to compensate for nonnal growth. The catheter incorporating the telescopic section is made in two segments having flanged ends which contact the inside of a silicone rubber cylinder and are fluidtight, but can move longitudinally under tensile loads applied as a consequence of the growth of the child. The flanged ends may be radiopaque in order that the elongation may be checked by X- ray. These ends are held against withdrawal.
PATENTED 30 3,623,484
INVEN'IUR. IQUDOLF R. SCHUL TE A TTOK/Vf Y5.
TELESCOPING SHUNT SYSTEM FOR PHYSIOLOGICAL FLUID to auxiliary devices for use in Still another object of the invention is to provide means on ic portion and thereby providing elongation.
The above and other features of this invention will be fully appreciated from the following detailed description and the accompanying drawings in which:
FIG. 1 shows the presently preferred embodiment of the invention in the body ofa child;
F IG. 2 is a cross section of a portion of the invention shown in Fig. 1, taken at line 2 2 therein; and
FIG. 3 is a cross section taken at line 3-ofFlG. 2.
A telescopic catheter 10, as shown in FIG. 1, is incoris fixed to the body at a location between the two ends of one arm of the system (the arm sometimes herein called a drainage catheter"), which arm is divided into two adjacent portions in this device.
The portions of the drainage catheter are called the proximal catheter l1 and the distal catheter 12. As seen in FIG. 2, the proximal catheter 1] and the distal catheter 12 have enlarged cylindrical flanges l3 and 14 which act as pistons and make a sliding sealing fit inside of retainer sleeves l and 16. Flanges l3 and 14 may be made radiopaque by applying a coating of, or by impregnation with, radiopaque material such as barium sulfate in order to visualize the flanges to X-ray in the implanted device.
the catheter portions. An outer sleeve 17 encases the retaining sleeves l5 and 16. The three sleeves may be held assembled by an air-curing silicone rubber cement. All sleeves and the catheter tubes 11 and 12 may conveniently be made of silicone rubber.
In use in a shunt system another catheter 18 (sometimes herein called a drainage catheter) is implanted so as to drain a region having unwanted fluids, such as the ventricles of the brain in cases of hydrocephalus. This catheter has a central passage and openings thereinto so as to collect fluid from this region.
pump, which interconnects them.
The proximal catheter portion 11 is sutured to the lozenge 19, which fixes its free end. Retainer sleeve 16 is sutured to the jugular vicinity by attachment of a suture to a groove 19a this suturing being done at the end 20, and these will become encased in fibrous tissue in the superior vena cava, and thereby prevent too-easy withdrawal therefrom.
catheter, while the cylindrical enlarge flanges l3 and 14 of the catheter tubes 11 and 12 are in sliding, fluid-sealing fit with the inside walls of the retaining sleeves l5 and 16. The outer sleeve 17 is then slipped over the retaining sleeves l5 and 16 and cemented into place with an aircuring silicone rubber cement, thus holding the telescopic catheter parts assembled in proper relative position.
In use, with the distal fixed to the clearing pump and to the jugular vein, and with an remains to be allowed before the device must be replaced with longer catheter portions.
The flanges are held against removal by the reduced portions 22 and 23, which are smaller than the flanges, so the device cannot be disassembled by an axial pull.
This telescopic joint markedly improves the function of the for example, in a single-line patent, wherein no pump is used.
The device is easily manufactured, and elegant in concept.
lclaim: l. A catheter for use in a physiological fluid shunt system, said catheter comprising: a first and a second tubular catheter each of said tubular retaining sleeves having a cylindrical inner wall with a reduced end adapted to overhang and retain against removal a respective one of said flanges and to make a close engagement with the outer wall of the respective catheter portion, said flanges making a sliding fluid-sealing fit with respective inner walls of said retaining sleeves; and an outer sleeve, said outer sleeve being bonded to and joining together and fluidly sealing the retaining sleeves, the retaining sleeves projecting beyond the ends of the outer sleeve.
2. A catheter according to claim 1 in which a groove is provided in the outer wall of one of said retainer sleeves to provide a point of attachment for a suture.
3. A catheter according to claim 1 in which one of said catheter portions carries protrusions on its surface near its end away from the sleeves, said protrusions being adapted to engage with fibrous body materials to prevent too-easy withdrawal.
4. A catheter described in claim 1 in which said enlarged shoulders on said tubular catheter segments are radiopaque.
5. A catheter according to claim 1 in which said tubular catheter, said retaining sleeves, and said sleeves are made of silicone rubber.
6. A catheter according to claim 3 in which said enlarged shoulders on said tubular catheter are radiopaque, and in which the catheter and said sleeves are made of silicone rubber.
7. A physiological fluid shunt system which comprises: a
collector catheter; pump means draining fluid from said collector catheter; a drainage catheter having a first portion and a second portion, and a telescopic coupling means connecting said portions for enabling the length of the drainage catheter to increase, said telescopic coupling means comprising: an enlarged cylindrical flange on each of the catheter portions; a pair of tubular retaining sleeves, each of said tubular retaining sleeves having a cylindrical inner wall with a reduced end adapted to overhang and retain against removal a respective one of the said flanges and to make a close engagement with the outer wall of the respective catheter portion, said flanges making a sliding fluid-sealing fit with respective inner walls of said retaining sleeves; and an outer sleeve, said outer sleeve being bonded to and joining together and fluidly sealing the retaining sleeves, the retaining sleeves projecting beyond the ends of the outer sleeve.
8. A system according to claim 7 in which a vided in the outer wall of one of said vide a point of attachment for a suture.
9. A system according to claim 7 in which one of said catheter portions carries protrusions on its surface near its end away from the sleeves, said protrusions being adapted to engage with fibrous body materials to prevent too-easy withdrawal.
groove is proretainer sleeves to pro- Patent No.
Inventofls) UMTED STATES PATENI 0mm:
FHCATE OF CQRl iEC'LLC/N November 30, 1971 3 623 ,484- Dated RUDOLF R. S HULTE it is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
Cole 1, line 15, 'combines" should read -combined-- Cole 1, line 45, "3--" should read --3-3- Col V 1, line 55, "retainer" should read --retaining- N 1, line 58, "sulfate" should read --sulphate-- Col 1, line 74, "drainage" should read --"collection-- Col. 2, line 23, "enlarge" should read --enlarged-- Col 2, line 60, "surgeons" should read -surgeon's-- Col '4 line 2, (Claim 7, line 3) after "catheter", 2nd
occurrence, there should be inserted --receiving fluid from said pump means, said drainage catheter-- Signed and sealed this 18th day of December 1973.
(SEAL) Attest:
EDWARD M. FLETCHER,JR. Attestine Officer RENE D TEGTMEYER Acting Commissioner of Patents

Claims (9)

1. A catheter for use in a physiological fluid shunt system, said catheter comprising: a first and a second tubular catheter portion, said tubular catheter portions each having an enlarged cylindrical flange; a pair of tubular retaining sleeves, each of said tubular retaining sleeves having a cylindrical inner wall with a reduced end adapted to overhang and retain against removal a respective one of said flanges and to make a close engagement with the outer wall of the respective catheter portion, said flanges making a sliding fluid-sealing fit with respective inner walls of said retaining sleeves; and an outer sleeve, said outer sleeve being bonded to and joining together and fluidly sealing the retaining sleeves, the retaining sleeves projecting beyond the ends of the outer sleeve.
2. A catheter according to claim 1 in which a groove is provided in the outer wall of one of said retainer sleeves to provide a point of attachment for a suture.
3. A catheter according to claim 1 in which one of said catheter portions carries protrusions on its surface near its end away from the sleeves, said protrusions being adapted to engage with fibrous body materials to prevent too-easy withdrawal.
4. A catheter described in claim 1 in which said enlarged shoulders on said tubular catheter segments are radiopaque.
5. A catheter according to claim 1 in which said tubular catheter, said retaining sleeves, and said sleeves are made of silicone rubber.
6. A catheter according to claim 3 in which said enlarged shoulders on said tubular catheter are radiopaque, and in which the catheter and said sleeves are made of silicone rubber.
7. A physiological fluid shunt system which comprises: a collector catheter; pump means draining fluid from said collector catheter; a drainage catheter receiving fluid from said pump means, said drainage catheter having a first portion and a second portion, and a telescopic coupling means connecting said portions for enabling the length of the drainage catheter to increase, said telescopic coupling means comprising: an enlarged cylindrical flange on each of the catheter portions; a pair of tubular retaining sleeves, each of said tubular retaining sleeves having a cylindrical inner wall with a reduced end adapted to overhang and retain against removal a respective one of the said flanges and to make a close engagement with the outer wall of the respective catheter portion, said flanges making a sliding fluid-sealing fit wiTh respective inner walls of said retaining sleeves; and an outer sleeve, said outer sleeve being bonded to and joining together and fluidly sealing the retaining sleeves, the retaining sleeves projecting beyond the ends of the outer sleeve.
8. A system according to claim 7 in which a groove is provided in the outer wall of one of said retainer sleeves to provide a point of attachment for a suture.
9. A system according to claim 7 in which one of said catheter portions carries protrusions on its surface near its end away from the sleeves, said protrusions being adapted to engage with fibrous body materials to prevent too-easy withdrawal.
US843517A 1969-07-22 1969-07-22 Telescoping shunt system for physiological fluid Expired - Lifetime US3623484A (en)

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738365A (en) * 1969-07-22 1973-06-12 R Schulte Spring reinforced extensible catheter
US3913587A (en) * 1973-12-10 1975-10-21 Dow Corning Implantable extendable member
FR2495474A1 (en) * 1980-12-04 1982-06-11 Sommers Michael A CATHETER ASSEMBLY FOR A PHYSIOLOGICAL FLUID DERIVATION DEVICE, A CAP FOR THE END OF THIS DEVICE, SUCH A DEVICE, A SURGICAL TROCART AND METHOD FOR INSERTING THE CATHETER, A SLOW-PRESSURE SLOW VALVE, AND A CATHETER FASTENING ATTACHMENT TO THE BODY
US4398910A (en) * 1981-02-26 1983-08-16 Blake L W Wound drain catheter
US4548201A (en) * 1982-04-20 1985-10-22 Inbae Yoon Elastic ligating ring clip
US4583967A (en) * 1984-02-13 1986-04-22 Cordis Corporation Telescoping catheter shunt system
US4632668A (en) * 1984-12-31 1986-12-30 University Of Virginia Alumni Patents Foundation Ventricular catheter
WO1991004068A1 (en) * 1989-09-14 1991-04-04 Schoener Wolfgang Implantable catheter made of high cold flown material
FR2661604A1 (en) * 1990-05-07 1991-11-08 Ravel Technologies Prostate prosthesis, a device for its introduction or removal, and a device for its adjustment
WO1992000043A1 (en) * 1990-06-28 1992-01-09 Schneider (Usa) Inc. Self-expanding prosthesis having stable axial length
US5360414A (en) * 1992-10-08 1994-11-01 Yarger Richard J Tube for draining body cavities, viscera and wounds
US5728061A (en) * 1988-10-07 1998-03-17 Ahmed; Abdul Mateen Device and method for treating hydrocephalus
US6010479A (en) * 1994-09-02 2000-01-04 Dimitri; Mauro Specific catheter for percutaneous gastrostomy
US6193682B1 (en) 1998-03-16 2001-02-27 Abdul Mateen Ahmed Low profile neonatal hydrocephalus device and methods
US6478789B1 (en) 1999-11-15 2002-11-12 Allegiance Corporation Wound drain with portals to enable uniform suction
US20040249360A1 (en) * 1999-03-22 2004-12-09 Spehalski Stephan R. Steerable wound drain device
US20070129663A1 (en) * 2005-12-01 2007-06-07 Medtronic, Inc. Implantable cerebrospinal fluid flow device and method of controlling flow of cerebrospinal fluid
JP2008517683A (en) * 2004-10-25 2008-05-29 コロプラスト アクティーゼルスカブ Male telescopic catheter
US8777931B2 (en) 2011-08-19 2014-07-15 Alcon Research, Ltd. Retractable luer lock fittings
WO2019099740A1 (en) * 2017-11-15 2019-05-23 Alcyone Lifesciences, Inc. Drug delivery systems and methods

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BE664424A (en) *
US330392A (en) * 1885-11-17 Expansion-joint
US358074A (en) * 1887-02-22 Coupliire foe lubricatoks
US1130358A (en) * 1914-02-19 1915-03-02 Elmer E Whitney Trombone-slide.
US3456965A (en) * 1967-02-23 1969-07-22 Baxter Laboratories Inc Means for coupling a pair of fluid conduits
US3492996A (en) * 1966-02-09 1970-02-03 Dow Corning Ventriculo-atrial shunt

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE664424A (en) *
US330392A (en) * 1885-11-17 Expansion-joint
US358074A (en) * 1887-02-22 Coupliire foe lubricatoks
US1130358A (en) * 1914-02-19 1915-03-02 Elmer E Whitney Trombone-slide.
US3492996A (en) * 1966-02-09 1970-02-03 Dow Corning Ventriculo-atrial shunt
US3456965A (en) * 1967-02-23 1969-07-22 Baxter Laboratories Inc Means for coupling a pair of fluid conduits

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738365A (en) * 1969-07-22 1973-06-12 R Schulte Spring reinforced extensible catheter
US3913587A (en) * 1973-12-10 1975-10-21 Dow Corning Implantable extendable member
FR2495474A1 (en) * 1980-12-04 1982-06-11 Sommers Michael A CATHETER ASSEMBLY FOR A PHYSIOLOGICAL FLUID DERIVATION DEVICE, A CAP FOR THE END OF THIS DEVICE, SUCH A DEVICE, A SURGICAL TROCART AND METHOD FOR INSERTING THE CATHETER, A SLOW-PRESSURE SLOW VALVE, AND A CATHETER FASTENING ATTACHMENT TO THE BODY
US4382445A (en) * 1980-12-04 1983-05-10 Cosmos Research Associates Physiological fluid shunt system and improvements therefor
US4398910A (en) * 1981-02-26 1983-08-16 Blake L W Wound drain catheter
US4548201A (en) * 1982-04-20 1985-10-22 Inbae Yoon Elastic ligating ring clip
US4583967A (en) * 1984-02-13 1986-04-22 Cordis Corporation Telescoping catheter shunt system
US4632668A (en) * 1984-12-31 1986-12-30 University Of Virginia Alumni Patents Foundation Ventricular catheter
US5728061A (en) * 1988-10-07 1998-03-17 Ahmed; Abdul Mateen Device and method for treating hydrocephalus
US5468221A (en) * 1989-09-14 1995-11-21 Schoener; Wolfgang Implantable catheter made of high cold flow material
WO1991004068A1 (en) * 1989-09-14 1991-04-04 Schoener Wolfgang Implantable catheter made of high cold flown material
FR2661604A1 (en) * 1990-05-07 1991-11-08 Ravel Technologies Prostate prosthesis, a device for its introduction or removal, and a device for its adjustment
WO1992000043A1 (en) * 1990-06-28 1992-01-09 Schneider (Usa) Inc. Self-expanding prosthesis having stable axial length
US5360414A (en) * 1992-10-08 1994-11-01 Yarger Richard J Tube for draining body cavities, viscera and wounds
US6010479A (en) * 1994-09-02 2000-01-04 Dimitri; Mauro Specific catheter for percutaneous gastrostomy
US6193682B1 (en) 1998-03-16 2001-02-27 Abdul Mateen Ahmed Low profile neonatal hydrocephalus device and methods
US7658735B2 (en) 1999-03-22 2010-02-09 Spehalski Stephan R Steerable wound drain device
US20040249360A1 (en) * 1999-03-22 2004-12-09 Spehalski Stephan R. Steerable wound drain device
US8834453B2 (en) 1999-03-22 2014-09-16 Allegiance Corporation Steerable wound drain device
US8545481B2 (en) 1999-03-22 2013-10-01 Allegiance Corporation Steerable wound drain device
US20100198171A1 (en) * 1999-03-22 2010-08-05 Spehalski Stephan R Steerable wound drain device
US6478789B1 (en) 1999-11-15 2002-11-12 Allegiance Corporation Wound drain with portals to enable uniform suction
US20090137985A1 (en) * 2004-10-25 2009-05-28 Allan Tanghoej Male telescope catheter
JP4700059B2 (en) * 2004-10-25 2011-06-15 コロプラスト アクティーゼルスカブ Male telescopic catheter
US8361057B2 (en) 2004-10-25 2013-01-29 Coloplast A/S Male telescope catheter
JP2008517683A (en) * 2004-10-25 2008-05-29 コロプラスト アクティーゼルスカブ Male telescopic catheter
US8333728B2 (en) * 2005-12-01 2012-12-18 Medtronic, Inc. Implantable cerebrospinal fluid flow device and method of controlling flow of cerebrospinal fluid
US20070129663A1 (en) * 2005-12-01 2007-06-07 Medtronic, Inc. Implantable cerebrospinal fluid flow device and method of controlling flow of cerebrospinal fluid
US8777931B2 (en) 2011-08-19 2014-07-15 Alcon Research, Ltd. Retractable luer lock fittings
WO2019099740A1 (en) * 2017-11-15 2019-05-23 Alcyone Lifesciences, Inc. Drug delivery systems and methods
US10668247B2 (en) 2017-11-15 2020-06-02 Alcyone Lifesciences, Inc. Therapy specific, pre-programmed auto injection device
US10675438B2 (en) 2017-11-15 2020-06-09 Alcyone Lifesciences, Inc. Therapy specific, pre-programmed auto injection device
US11850374B2 (en) 2017-11-15 2023-12-26 Alcyone Therapeutics, Inc. Therapy specific, pre-programmed auto injection device

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