CA2424381A1 - Body fluid flow control method and device - Google Patents

Body fluid flow control method and device Download PDF

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Publication number
CA2424381A1
CA2424381A1 CA002424381A CA2424381A CA2424381A1 CA 2424381 A1 CA2424381 A1 CA 2424381A1 CA 002424381 A CA002424381 A CA 002424381A CA 2424381 A CA2424381 A CA 2424381A CA 2424381 A1 CA2424381 A1 CA 2424381A1
Authority
CA
Canada
Prior art keywords
fluid
fluid flow
canal
constricting
body canal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002424381A
Other languages
French (fr)
Other versions
CA2424381C (en
Inventor
Peter H. Sayet
Lloyd A. Sutherland
Victor Politano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Precision Medical Devices Inc
Original Assignee
Precision Medical Devices Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Precision Medical Devices Inc filed Critical Precision Medical Devices Inc
Priority to CA2735746A priority Critical patent/CA2735746C/en
Publication of CA2424381A1 publication Critical patent/CA2424381A1/en
Application granted granted Critical
Publication of CA2424381C publication Critical patent/CA2424381C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/0004—Closure means for urethra or rectum, i.e. anti-incontinence devices or support slings against pelvic prolapse
    • A61F2/0031—Closure means for urethra or rectum, i.e. anti-incontinence devices or support slings against pelvic prolapse for constricting the lumen; Support slings for the urethra
    • A61F2/0036—Closure means for urethra or rectum, i.e. anti-incontinence devices or support slings against pelvic prolapse for constricting the lumen; Support slings for the urethra implantable
    • A61F2/004—Closure means for urethra or rectum, i.e. anti-incontinence devices or support slings against pelvic prolapse for constricting the lumen; Support slings for the urethra implantable inflatable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/0004—Closure means for urethra or rectum, i.e. anti-incontinence devices or support slings against pelvic prolapse
    • A61F2/0031—Closure means for urethra or rectum, i.e. anti-incontinence devices or support slings against pelvic prolapse for constricting the lumen; Support slings for the urethra
    • A61F2/0036—Closure means for urethra or rectum, i.e. anti-incontinence devices or support slings against pelvic prolapse for constricting the lumen; Support slings for the urethra implantable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/009—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof magnetic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0001—Means for transferring electromagnetic energy to implants
    • A61F2250/0002—Means for transferring electromagnetic energy to implants for data transfer

Abstract

An implantable apparatus is disclosed for controlling fluid flow within a host body includes a constricting member for allowing fluid flow within a body canal when in an open position, and for reducing fluid flow within a body canal when in an closed position. Remote telemetry can be used to operate the constricting member from a position outside the body. The constricting member can include a piston having at least two protrusions for contacting the vessel surface of the body canal. A fluid-operated member can receive fluid to reduce fluid flow within the body canal and expel fluid to allow fluid flow within the body canal. An actuating member is provided for operating the fluid-operated member between the open and closed positions.
The actuating member has structure for flowing fluid into and out of the fluid-operated member. A control device is provided for operating the actuating member.

Claims (28)

1. A system for controlling fluid flow within a host body comprising:

a constricting member for allowing fluid flow within a body canal when in an open position and for reducing fluid flow within a body canal when in a closed position;

an actuator for operating the constricting member between said opened and closed positions, and control structure for operating said actuator, said control structure being operated by a telemetry device from a position outside the host body.
2. The system of claim 1, wherein said control structure is adapted to translate coded signals to commands for said actuator.
3. The system of claim 2, wherein said codes are in the form of short duration and long duration signals, the sequence of said short duration and long duration signals providing said coded signals.
4. The system of claim 1, wherein said control structure is adapted to cause said actuator to perform at least one selected from the group consisting of loosen, tighten, recalibrate, disable PMD, enable normal operation, and unit diagnosis.
5. The system of claim 1, wherein the telemetry device and the control structure have transmitting and receiving structure for transmitting and receiving control and status information.
6. The system of claim 1, wherein said constricting member comprising a piston, and an engaging element for substantially encircling a portion of said canal, said piston being positioned in said constricting member such that said piston will compress said canal against said engaging element and reduce fluid flow within said body canal.
7. The system of claim 1, wherein said constricting member comprising a bladder, said bladder receiving fluid to reduce fluid flow within said body canal and expelling fluid to allow fluid flow within said body canal.
8. A constricting device for controlling fluid flow through a body canal, comprising a plunging member for compressing said body canal to reduce fluid flow through said canal, said plunging member comprising at least two protrusions for contacting the vessel surface.
9. The constricting device of claim 8, wherein said plunging member comprises a protrusion at each outer edge of said plunging member.
10. The constricting device of claim 1, further comprising an engaging element for substantially encircling a portion of said canal, said plunging member being positioned in said constricting member such that said plunging member will compress said canal against said engaging element and reduce fluid flow within said body canal.
11. An implantable apparatus for controlling fluid flow within a host body comprising:

a constricting member for allowing fluid flow within a body canal when in an open position and for reducing fluid flow within a body canal when in a closed position, said constricting member comprising fluid-operated structure which receives fluid to reduce fluid flow within said body canal and expels fluid to allow fluid flow within said body canal;

an actuating member for operating the connecting member between said opened and closed positions, said actuating member comprising structure for flowing fluid into and out of said fluid-operated structure; and control means for operating said actuating member.
12. The implantable apparatus of claim 11, wherein said constricting member comprises an engaging element for substantially encircling a portion of said canal, and said fluid-operated structure comprises a bladder, said bladder being positioned in said constricting member such that expansion of said bladder upon receiving said fluid will cause said bladder to compress said canal against said engaging element and reduce fluid flow within said body canal.
13. The implantable apparatus of claim 12, wherein said actuating member comprises a pump, fluid reservoir, and a fluid conduit connecting said fluid reservoir with said fluid-operated structure, said pump for pumping fluid between said reservoir and said fluid operated structure.
14. The implantable apparatus of claim 13, wherein said pump comprises a flexible fluid transfer conduit and an impeller for compressing said fluid transfer conduit and thereby pumping fluid from said fluid transfer conduit.
15. The implantable apparatus of claim 14, wherein at least a portion of said fluid transfer conduit is arcuately-disposed, and a portion of said pump impeller moves arcuately to compress said fluid transfer conduit.
16. The implantable apparatus of claim 14, wherein said impeller comprises a plurality of radially disposed rollers, said rollers mounted on a drive disc rotated by a motor to move said rollers arcuately along said fluid transfer conduit for compressing said fluid transfer conduit.
17. The implantable apparatus of claim 16, wherein said motor direction is reversible, wherein in a first direction said pump will pump fluid into said fluid operated structure, and in a second direction said pump will pump fluid from said fluid-operated structure.
18. The implantable apparatus of claim 17, wherein said fluid is water.
19. The implantable apparatus of claim 17, wherein said fluid is a gas.
20. The implantable apparatus of claim 11, wherein said control means is operable by remote telemetry.
21. An implantable drive mechanism for an implanted medical device, comprising:

a sealed housing for implantation in a patient body;

a drive magnet positioned within the housing;

an actuator for moving the drive magnet; and a magnetically susceptible drive member positioned outside the housing such that movement of the drive magnet within the housing will move the drive member outside of the housing.
22. The implantable drive mechanism of claim 21, wherein said drive member is operable to drive a constricting member for allowing fluid flow within a body canal when in an open position and for reducing fluid flow within a body canal when in a closed position.
23. The implantable drive mechanism of claim 21, wherein said housing comprises a bore sealed at one end, said driving member being in part positioned in said bore, said drive magnet being provided in said housing adjacent to said bore.
24. The implantable drive mechanism of claim 21, further comprising control structure for operating said actuator, said control structure being operated by a telemetry device from a position outside the patient body.
25. An implantable apparatus for controlling fluid flow within a host body comprising:

a constricting member for allowing fluid flow within a body canal when in an open position and for reducing fluid flow within a body canal when in a closed position;
an electrically-operated actuator for operating the constricting member between said opened and closed positions; and control structure for operating said actuator, said control structure comprising voltage measuring structure for controlling said constricting member.
26. The implantable apparatus of claim 25, wherein said voltage measuring structure measures battery voltage.
27. The implantable apparatus of claim 25, wherein said voltage measuring structure measures voltage drawn by said actuator.
28. The implantable apparatus of claim 25, wherein said actuator moves said constricting member to said open position for allowing fluid flow upon detection of a voltage irregularity.
CA2424381A 2003-03-04 2003-04-03 Body fluid flow control method and device Expired - Lifetime CA2424381C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2735746A CA2735746C (en) 2003-03-04 2003-04-03 Body fluid flow control method and device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/379,431 2003-03-04
US10/379,431 US7011621B2 (en) 2000-09-29 2003-03-04 Body fluid flow control method and device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2735746A Division CA2735746C (en) 2003-03-04 2003-04-03 Body fluid flow control method and device

Publications (2)

Publication Number Publication Date
CA2424381A1 true CA2424381A1 (en) 2004-09-04
CA2424381C CA2424381C (en) 2011-05-10

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CA2424381A Expired - Lifetime CA2424381C (en) 2003-03-04 2003-04-03 Body fluid flow control method and device
CA2735746A Expired - Lifetime CA2735746C (en) 2003-03-04 2003-04-03 Body fluid flow control method and device

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Country Status (6)

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US (3) US7011621B2 (en)
JP (1) JP2004267737A (en)
KR (1) KR20040078602A (en)
AU (1) AU2003203917B2 (en)
CA (2) CA2424381C (en)
WO (1) WO2004078031A2 (en)

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CA2735746C (en) 2014-11-25
KR20040078602A (en) 2004-09-10
WO2004078031A3 (en) 2005-03-24
US7011621B2 (en) 2006-03-14
JP2004267737A (en) 2004-09-30
US20060167336A1 (en) 2006-07-27
CA2424381C (en) 2011-05-10
US8382652B2 (en) 2013-02-26
WO2004078031A2 (en) 2004-09-16
US20030225311A1 (en) 2003-12-04
CA2735746A1 (en) 2004-09-04
AU2003203917B2 (en) 2007-03-15
US9144482B2 (en) 2015-09-29
US20130172665A1 (en) 2013-07-04

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