CA2507135A1 - Bi-directional infuser pump with volume braking for hydraulically controlling an adjustable gastric band - Google Patents
Bi-directional infuser pump with volume braking for hydraulically controlling an adjustable gastric band Download PDFInfo
- Publication number
- CA2507135A1 CA2507135A1 CA002507135A CA2507135A CA2507135A1 CA 2507135 A1 CA2507135 A1 CA 2507135A1 CA 002507135 A CA002507135 A CA 002507135A CA 2507135 A CA2507135 A CA 2507135A CA 2507135 A1 CA2507135 A1 CA 2507135A1
- Authority
- CA
- Canada
- Prior art keywords
- accumulator
- propellant
- implantable device
- enclosure
- movable portion
- 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
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
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- 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
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/0003—Apparatus for the treatment of obesity; Anti-eating devices
-
- 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
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/0003—Apparatus for the treatment of obesity; Anti-eating devices
- A61F5/0013—Implantable devices or invasive measures
- A61F5/005—Gastric bands
- A61F5/0053—Gastric bands remotely adjustable
Abstract
An implantable artificial sphincter system provides long-term adjustment via transcutaneous energy transfer (TET), minimizing invasive adjustment through adding or removing fluid via a syringe. An infuser device provides bi-directional fluid transfer via a flexible conduit to a sphincter band, such as a gastric band, by a combination of thermodynamic actuation and a piezo-electrically disengaged drum brake assembly that thereby achieves a desirable small volume device. A propellant within a propellant cavity surrounds a metal bellows accumulator biased at body temperature to either expand or collapse the bellows accumulator with the opposite direction of movement effected by a thermal element that heats in combination with a negatively-biased propellant or cools in combination with a positively-biased propellant. A drum brake assembly locks the metal bellows accumulator in place between adjustments by thermodynamic actuation by activating piezo-electric stack actuators that disengage calipers from a brake drum attached to the bellows accumulator.
Claims (20)
1. An implantable device, comprising:
an enclosure;
an accumulator contained within the enclosure and including a movable portion operably configured to vary an internal volume of the accumulator;
a contact surface external to the accumulator and connected to the movable portion for bi-directional movement between a collapsed accumulator position and an expanded accumulator position;
a braking member coupled to the enclosure and proximally positioned and operably configured for movement between a braking contact position and a noncontact position with the contact surface; and a brake actuator operably configured to selectively position the braking member.
an enclosure;
an accumulator contained within the enclosure and including a movable portion operably configured to vary an internal volume of the accumulator;
a contact surface external to the accumulator and connected to the movable portion for bi-directional movement between a collapsed accumulator position and an expanded accumulator position;
a braking member coupled to the enclosure and proximally positioned and operably configured for movement between a braking contact position and a noncontact position with the contact surface; and a brake actuator operably configured to selectively position the braking member.
2. The implantable device of claim 1, wherein the accumulator comprises a bellows accumulator.
3. The implantable device of claim 2, wherein the accumulator comprises a cylindrical bellows accumulator, the contact surface comprising a brake drum.
4. The implantable device of claim 3, wherein the braking member comprises at least one brake caliper encompassing at least a portion of a circumference of the brake drum.
5. The implantable device of claim 1, wherein the brake actuator comprises a piezo-electric stack actuator.
6. The implantable device of claim 1, wherein a propellant cavity is defined internal to the enclosure and external to the accumulator, the device further comprising:
a propellant having a liquid/gas phase near body temperature and present in the propellant cavity to pressure bias the accumulator for movement; and a heat flux element operably configured to adjust a temperature of the propellant to reverse the pressure bias on the accumulator.
16.
a propellant having a liquid/gas phase near body temperature and present in the propellant cavity to pressure bias the accumulator for movement; and a heat flux element operably configured to adjust a temperature of the propellant to reverse the pressure bias on the accumulator.
16.
7. The implantable device of claim 6, wherein at body temperature the propellant exerts a positive gauge pressure on the accumulator urging the movable portion toward the collapsed accumulator position, the heat flux element comprising a cooling element.
8. The implantable device of claim 6, wherein at body temperature the propellant exerts a negative gauge pressure on the accumulator urging the movable portion toward the expanded accumulator position, the heat flux element comprising a heating element.
9. An implantable device, comprising:
an enclosure;
an accumulator contained within the enclosure and including a movable portion operably configured to vary an internal volume of the accumulator;
a thermal pressure system operatively configured to vary pressure within the enclosure external to the accumulator to urge the movable portion of the accumulator to move;
a contact surface external to the accumulator and connected to the movable portion for bi-directional movement between a collapsed accumulator position and an expanded accumulator position;
a braking member coupled to the enclosure and proximally positioned and biased into braking contact with the contact surface; and a brake actuator operably configured to deflect the braking member from braking contact with the contact surface.
an enclosure;
an accumulator contained within the enclosure and including a movable portion operably configured to vary an internal volume of the accumulator;
a thermal pressure system operatively configured to vary pressure within the enclosure external to the accumulator to urge the movable portion of the accumulator to move;
a contact surface external to the accumulator and connected to the movable portion for bi-directional movement between a collapsed accumulator position and an expanded accumulator position;
a braking member coupled to the enclosure and proximally positioned and biased into braking contact with the contact surface; and a brake actuator operably configured to deflect the braking member from braking contact with the contact surface.
10. The implantable device of claim 9, wherein the accumulator comprises a bellows accumulator.
11. The implantable device of claim 10, wherein the accumulator comprises a cylindrical bellows accumulator, the contact surface comprising a brake drum.
12. The implantable device of claim 11, wherein the braking member comprises at least one brake caliper encompassing at least a portion of a circumference of the brake drum.
13. The implantable device of claim 9, wherein the brake actuator comprises a piezo-electric stack actuator.
14. The implantable device of claim 9, wherein the thermal actuation system comprises:
a propellant cavity defined internal to the enclosure and external to the accumulator, the device further comprising:
a propellant having a liquid/gas phase near body temperature and present in the propellant cavity to pressure bias the accumulator for movement; and a heat flux element operably configured to adjust a temperature of the propellant to reverse the pressure bias on the accumulator.
a propellant cavity defined internal to the enclosure and external to the accumulator, the device further comprising:
a propellant having a liquid/gas phase near body temperature and present in the propellant cavity to pressure bias the accumulator for movement; and a heat flux element operably configured to adjust a temperature of the propellant to reverse the pressure bias on the accumulator.
15. The implantable device of claim 14, wherein at body temperature the propellant exerts a positive gauge pressure on the accumulator urging the movable portion toward the collapsed accumulator position, the heat flux element comprising a cooling element.
16. The implantable device of claim 14, wherein at body temperature the propellant exerts a negative gauge pressure on the accumulator urging the movable portion toward the expanded accumulator position, the heat flux element comprising a heating element.
17. An implanted apparatus, comprising:
a hydraulically inflatable therapeutic member;
an infuser device in fluid communication with the hydraulically inflatable therapeutic member for adjusting a fluid volume therein, the infuser device comprising:
an enclosure;
an accumulator contained within the enclosure and including a movable portion operably configured to vary an internal volume of the accumulator;
a contact surface external to the accumulator and connected to the movable portion for bi-directional movement between a collapsed accumulator position and an expanded accumulator position;
a braking member attached to the enclosure and proximally positioned and biased into braking contact with the contact surface; and a brake actuator operably configured to deflect the braking member from braking contact with the contact surface.
a hydraulically inflatable therapeutic member;
an infuser device in fluid communication with the hydraulically inflatable therapeutic member for adjusting a fluid volume therein, the infuser device comprising:
an enclosure;
an accumulator contained within the enclosure and including a movable portion operably configured to vary an internal volume of the accumulator;
a contact surface external to the accumulator and connected to the movable portion for bi-directional movement between a collapsed accumulator position and an expanded accumulator position;
a braking member attached to the enclosure and proximally positioned and biased into braking contact with the contact surface; and a brake actuator operably configured to deflect the braking member from braking contact with the contact surface.
18. The implanted apparatus of claim 17, wherein the hydraulically inflatable therapeutic member comprises an implantable band operably configured to encircle a bodily lumen of a patient and including an inwardly directed fluid bladder for adjusting an inner diameter.
19. The implanted apparatus of claim 18, further comprising a transcutaneous energy transfer system including a primary coil external to a patient and a secondary coil in electrical communication with the infuser device.
20. The implanted apparatus of claim 18, further comprising a thermal pressure system operatively configured to vary pressure within the enclosure external to the accumulator to urge the movable portion of the accumulator to move.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/857,763 US7374565B2 (en) | 2004-05-28 | 2004-05-28 | Bi-directional infuser pump with volume braking for hydraulically controlling an adjustable gastric band |
| US10/857,763 | 2004-05-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2507135A1 true CA2507135A1 (en) | 2005-11-28 |
| CA2507135C CA2507135C (en) | 2012-10-02 |
Family
ID=34975175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2507135A Expired - Fee Related CA2507135C (en) | 2004-05-28 | 2005-05-12 | Bi-directional infuser pump with volume braking for hydraulically controlling an adjustable gastric band |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US7374565B2 (en) |
| EP (1) | EP1600128B1 (en) |
| JP (1) | JP4790313B2 (en) |
| CN (1) | CN100457052C (en) |
| AT (1) | ATE497744T1 (en) |
| AU (1) | AU2005201896B2 (en) |
| BR (1) | BRPI0501943A (en) |
| CA (1) | CA2507135C (en) |
| DE (1) | DE602005026231D1 (en) |
| MX (1) | MXPA05005715A (en) |
| RU (1) | RU2005116202A (en) |
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2004
- 2004-05-28 US US10/857,763 patent/US7374565B2/en not_active Expired - Fee Related
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2005
- 2005-05-04 AU AU2005201896A patent/AU2005201896B2/en not_active Ceased
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- 2005-05-25 BR BR0501943-5A patent/BRPI0501943A/en not_active IP Right Cessation
- 2005-05-27 RU RU2005116202/14A patent/RU2005116202A/en not_active Application Discontinuation
- 2005-05-27 CN CNB2005100730344A patent/CN100457052C/en active Active
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- 2005-05-27 MX MXPA05005715A patent/MXPA05005715A/en active IP Right Grant
- 2005-05-27 AT AT05253316T patent/ATE497744T1/en not_active IP Right Cessation
- 2005-05-27 DE DE602005026231T patent/DE602005026231D1/en active Active
- 2005-05-27 EP EP05253316A patent/EP1600128B1/en active Active
Also Published As
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| CN1714759A (en) | 2006-01-04 |
| US20050277960A1 (en) | 2005-12-15 |
| ATE497744T1 (en) | 2011-02-15 |
| AU2005201896B2 (en) | 2011-06-23 |
| BRPI0501943A (en) | 2006-01-24 |
| AU2005201896A1 (en) | 2005-12-15 |
| EP1600128B1 (en) | 2011-02-09 |
| JP2005349193A (en) | 2005-12-22 |
| CN100457052C (en) | 2009-02-04 |
| EP1600128A1 (en) | 2005-11-30 |
| RU2005116202A (en) | 2006-11-10 |
| MXPA05005715A (en) | 2005-11-30 |
| US7374565B2 (en) | 2008-05-20 |
| CA2507135C (en) | 2012-10-02 |
| DE602005026231D1 (en) | 2011-03-24 |
| JP4790313B2 (en) | 2011-10-12 |
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