WO2005105001A2 - Dispositif de cerclage gastrique motorise - Google Patents
Dispositif de cerclage gastrique motorise Download PDFInfo
- Publication number
- WO2005105001A2 WO2005105001A2 PCT/FR2005/000995 FR2005000995W WO2005105001A2 WO 2005105001 A2 WO2005105001 A2 WO 2005105001A2 FR 2005000995 W FR2005000995 W FR 2005000995W WO 2005105001 A2 WO2005105001 A2 WO 2005105001A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- antenna
- ring
- antennas
- motorized
- gastric band
- Prior art date
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
- 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
Definitions
- Motorized gastric banding device or "gastric ring” comprising at least one disoriented receiving antenna for feeding, remote control and sending data, by induction.
- the present invention relates to the technical sector of AGMs or motorized gastric rings, that is to say the diameter of the ring can be adjusted by an on-board micro-motor.
- gastric band systems of the type comprising an outer chamber and an inner balloon disposed in a physiological liquid contained in the space between the chamber and the balloon. More or less swelling of the balloon increases or decreases the diameter of the gastric band.
- the adaptation of the swelling is carried out using a syringe by which the practitioner sends a physiological liquid via a receiving chamber arranged under an incision of the patient's skin, and a tube leading to the ring.
- the AGM is made up (figure 4) of a cylinder 2 containing engine, electronics and receiving antenna, and in front of this cylinder is the ring 1 which comes place around the esophagus.
- This ring the diameter of which can be increased or decreased, defines a plane whose orientation relative to the transmitting antenna is essential ( Figure 1).
- this orientation determines the amount of energy received by the ring. Too little energy received results first in an engine operation stop, then in a communication stop with the AGM,
- the antenna of the AGM versions of the prior art is placed in a standard manner at 90 ° to the plane formed by the ring.
- the Applicant continued his studies on the subject and discovered that the AGM moves in the patient's body after implantation, which was not predictable and is moreover random, which confirms its unpredictability and the merit of the Applicant, to have directed his research in this direction.
- the displacement of the AGM after implantation results in a rotation which, when it occurs, can be very noticeable of the ring of the AGM with respect to the plane of the external antenna.
- This rotation is in fact between 0 ° and 90 ° relative to the ideal orientation of the ring (plane of the ring perpendicular to the plane of the transmitting antenna) ( Figure 2).
- the antenna Given these possible rotations, the antenna can therefore be at an angle that does not allow it to receive enough energy to power the motor, and, in some cases, communication is no longer possible. This can eventually lead to the obligation to reposition the ring, in extreme cases. .
- the "technical problem” targeted by this patent is to eliminate this danger.
- the "objective” technical problem posed is therefore to imagine a system which ensures, whatever the final positioning of the motorized gastric band (AGM), a reception which allows the operation of the AGM engine at a distance greater than 5 cm.
- the transmitting external antenna which must be placed on the patient's abdomen, or its power or duration of emission (risks, among other things, of burns by the '' antenna in contact and risk of internal heating of the body area where the device is located); in the same way the choice of the emission frequency is not free: the frequency must obviously be very far from the frequencies of the microwaves and must on the contrary correspond to a magnetic radiation (without notable effect on the patient) and not electromagnetic.
- One solution is to orient the single antenna at an "average” angle, that is to say intermediate between the position initially adopted (antenna 90 ° from the ring) and an antenna in the same plane as the ring .
- the antenna is thus placed at an "average” angle of the order of 45 ° relative to the ring. Given the possible movements of the motorized ring after installation, this eliminates the risk of zero reception.
- the invention consists in adding at least one second antenna to the first, whether the latter is disoriented as indicated above or whether it is oriented in a standard manner as in the prior art, or any intermediate solution.
- This second antenna (or these additional antennas) will be substantially at right angles (or at regularly spaced angles in the case of several antennas) relative to the first antenna.
- the invention is based on a motorized gastric ring or "AGM" of the type comprising a motor acting on the diameter of the ring, activated by induction to at least one on-board receiving antenna, from an antenna external transmitter, characterized in that said ring comprises at least one receiving antenna, at least one of the antennas being disoriented relative to the plane of said gastric ring, that is to say that the antenna is no longer at right angles of the plan containing the ring gastric system and on-board electronics adapted to ensure optimal use of the energy received.
- AGM motorized gastric ring or "AGM” of the type comprising a motor acting on the diameter of the ring, activated by induction to at least one on-board receiving antenna, from an antenna external transmitter, characterized in that said ring comprises at least one receiving antenna, at least one of the antennas being disoriented relative to the plane of said gastric ring, that is to say that the antenna is no longer at right angles of the plan containing the ring gastric system and on-board electronics adapted to ensure optimal
- the angle that the antenna should have relative to the plane of the ring should be at least 20 ° and preferably of the order of 25 to 65 ° relative to the plane of the ring. This angle will be trigonometrically positive when looking at the AGM from the end opposite the ring ( Figure 3). However, for a 45 ° disorientation, the power received by the receiving antenna is 70% of the power received with an angle of 0 ° between the transmitting antenna and the receiving antenna. Such a loss of reception corresponds to a reduction in the maximum distance for correct operation of the AGM by 65%.
- An advantageous improvement of the solution of a disoriented antenna is to have two antennas and suitable electronics allowing the best use of the energy received by the best oriented antenna to power the engine.
- the disorientation between the transmitting antenna and the best placed receiving antenna corresponds to 22.5 °.
- the invention therefore also relates to a motorized gastric ring, characterized in that there are two antennas offset angularly with respect to each other and at least one of which is disoriented and suitable electronics allowing optimal use. the energy received by the best oriented antenna to power the engine.
- the disorientation between the transmitting antenna and the best placed receiving antenna corresponds to 22.5 °, if we suppose the transmitting antenna placed substantially parallel to the abdomen of the AGM carrier. For this difference in orientation, the energy received by the best oriented antenna is 92.4%, which corresponds to a reduction in the maximum distance for correct operation of the AGM by 21.1%. It will be noted that this kind of solution encountered two important obstacles: on the one hand, more than one antenna means a larger bulk and a greater complexity, while the available volume and the authorized weight are not extensible at will ; on the other hand, two antennas, or more than two antennas, may see their signals interfere, fight each other until eventually annihilate completely.
- the invention solved these two problems.
- the invention therefore relates to a motorized gastric ring characterized in that it comprises at least one antenna with angular orientation offset by at least 20 ° relative to the plane of the ring, preferably at least two antennas with angular offset reception energy intended for the motorization and the corresponding on-board electronics, energy supplied by induction by at least an external antenna, said at least two reception antennas being angularly offset with respect to each other, and in that it includes additional on-board electronics capable of using the energies received individually by each antenna.
- the invention relates to a motorized gastric ring characterized in that it comprises at least two angularly offset antennas for receiving the energy intended for the motorization and for the corresponding on-board electronics, energy supplied by induction by at least one external antenna, said at least two reception antennas being angularly offset with respect to each other, and in that it includes additional on-board electronics capable of using the energies received individually by each antenna.
- said ring comprising at least two antennas, and in particular two antennas, is characterized in that it comprises at least one antenna with angular orientation offset by at least 20 ° relative to the plane of the ring.
- the AGM comprises two antennas.
- said two antennas are angularly offset by 90 ° relative to each other.
- said two antennas are in planes of which the intersection forms the longitudinal axis of the engine and electronic part of the AGM.
- said gastric ring comprises a plurality of antennas offset angularly with respect to one another by 45 ° to 135 °.
- said AGM comprises three or four antennas offset angularly in a regular manner.
- the antennas are constituted by coils surrounding at least a part of the body of "on-board motor-electronics", preferably in peripheral channels or notches formed on the surface of said body.
- FIG. 1 shows a motorized gastric ring placed around the esophagus with an antenna at 90 ° to the plane of the ring, and a transmitting antenna;
- FIG. 2 shows an AGM having undergone a change in position in the abdomen, generally between 0 and 90 °, which rotates the antenna correspondingly relative to the transmitting antenna
- FIG. 3 shows a non-limiting solution according to the invention comprising an antenna receiver “disoriented” by 45 ° relative to the plane of the ring, in the configuration of FIG. 2
- FIG. 4 shows an AGM of the type considered, in schematic perspective, with its "ring” part proper 1 and its part or body “motorization - on-board electronics” 2 (including the antennas 3 and 4 angularly offset one relative to to the other corresponding to a nonlimiting version of the invention)
- FIG. 5 represents an electrical diagram of coupling of two antennas, extrapolable to more than two antennas:
- ANT x or respectively y antenna along the x or respectively y axis; C capacitor D diode DZ Zener diode L Inductance
- IC integrated circuit converts the voltage to an appropriate voltage, in particular 5V for the AGM application, to supply the motor and its control circuit
- the invention also relates to AGMs of the type described above comprising an electrical antenna coupling diagram as described in the "process" section above.
- the invention also relates to all the applications of the antenna coupling method as described above to AGMs of all types, in particular of which the motorization system would be different (pinching / rotation of two branches of the ring instead of pulling on a band, etc.)
- Antenna 3 disoriented by 45 ° relative to the plane of the ring PA, consisting of 100 turns wound on a frame of length by width comprising a U-shaped groove of section 1.7 x 2 mm.
- this type of device makes it possible to obtain the operation of a motor at 40 mA and 5V from a voltage of 12V at the output of the voltage limiter , this at a distance of 15cm.
- the invention also covers all the embodiments and all the applications which will be directly accessible to those skilled in the art on reading the present application, their own knowledge, and possibly simple routine tests.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE602005011418T DE602005011418D1 (de) | 2004-04-21 | 2005-04-21 | Motorgesteuerte Magnetbandvorrichtung |
AU2005237275A AU2005237275B2 (en) | 2004-04-21 | 2005-04-21 | Motor-operated gastric banding device |
EP05760051A EP1737399B1 (fr) | 2004-04-21 | 2005-04-21 | Dispositif de cerclage gastrique motorisé |
US11/587,033 US8096989B2 (en) | 2004-04-21 | 2005-04-21 | Motor-operated gastric banding device or gastric ring comprising at least one misaligned receiving antenna for power supply, remote control and data transmission by means of induction |
CA2564036A CA2564036C (fr) | 2004-04-21 | 2005-04-21 | Dispositif de cerclage gastrique ou "anneau gastrique" motorise comportant au moins une antenne de reception desorientee pour l'alimentation, la commande a distance et l'envoi de donnees, par induction |
JP2007508940A JP4734322B2 (ja) | 2004-04-21 | 2005-04-21 | 胃締結装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0404223A FR2869218B1 (fr) | 2004-04-21 | 2004-04-21 | Dispositif de cerclage gastrique ou "anneau gastrique" motorise comportant au moins une antenne de reception desorientee pour l'alimentation, la commande a distance et l'envoi de donnees, par induction |
FR0404223 | 2004-04-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005105001A2 true WO2005105001A2 (fr) | 2005-11-10 |
WO2005105001A3 WO2005105001A3 (fr) | 2006-06-01 |
Family
ID=34944667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2005/000995 WO2005105001A2 (fr) | 2004-04-21 | 2005-04-21 | Dispositif de cerclage gastrique motorise |
Country Status (10)
Country | Link |
---|---|
US (1) | US8096989B2 (fr) |
EP (1) | EP1737399B1 (fr) |
JP (1) | JP4734322B2 (fr) |
AT (1) | ATE415921T1 (fr) |
AU (1) | AU2005237275B2 (fr) |
CA (1) | CA2564036C (fr) |
DE (1) | DE602005011418D1 (fr) |
ES (1) | ES2321530T3 (fr) |
FR (1) | FR2869218B1 (fr) |
WO (1) | WO2005105001A2 (fr) |
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CN101524298A (zh) * | 2008-03-06 | 2009-09-09 | 伊西康内外科公司 | 与可植入的天线通信的系统和方法 |
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US7862502B2 (en) | 2006-10-20 | 2011-01-04 | Ellipse Technologies, Inc. | Method and apparatus for adjusting a gastrointestinal restriction device |
US8246533B2 (en) | 2006-10-20 | 2012-08-21 | Ellipse Technologies, Inc. | Implant system with resonant-driven actuator |
US10076413B2 (en) | 2008-03-25 | 2018-09-18 | Nuvasive Specialized Orthopedics, Inc. | Adjustable implant system |
US10238427B2 (en) | 2015-02-19 | 2019-03-26 | Nuvasive Specialized Orthopedics, Inc. | Systems and methods for vertebral adjustment |
US10271885B2 (en) | 2014-12-26 | 2019-04-30 | Nuvasive Specialized Orthopedics, Inc. | Systems and methods for distraction |
US10349995B2 (en) | 2007-10-30 | 2019-07-16 | Nuvasive Specialized Orthopedics, Inc. | Skeletal manipulation method |
US10349982B2 (en) | 2011-11-01 | 2019-07-16 | Nuvasive Specialized Orthopedics, Inc. | Adjustable magnetic devices and methods of using same |
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US11191579B2 (en) | 2012-10-29 | 2021-12-07 | Nuvasive Specialized Orthopedics, Inc. | Adjustable devices for treating arthritis of the knee |
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US20090222028A1 (en) * | 2008-02-29 | 2009-09-03 | Ethicon Endo-Surgery, Inc. | Methods and devices for fixing antenna orientation in a restriction system |
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US9271857B2 (en) | 2006-10-20 | 2016-03-01 | Ellipse Technologies, Inc. | Adjustable implant and method of use |
US11672684B2 (en) | 2006-10-20 | 2023-06-13 | Nuvasive Specialized Orthopedics, Inc. | Adjustable implant and method of use |
US11234849B2 (en) | 2006-10-20 | 2022-02-01 | Nuvasive Specialized Orthopedics, Inc. | Adjustable implant and method of use |
US10039661B2 (en) | 2006-10-20 | 2018-08-07 | Nuvasive Specialized Orthopedics, Inc. | Adjustable implant and method of use |
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Also Published As
Publication number | Publication date |
---|---|
EP1737399A2 (fr) | 2007-01-03 |
EP1737399B1 (fr) | 2008-12-03 |
FR2869218A1 (fr) | 2005-10-28 |
FR2869218B1 (fr) | 2006-06-09 |
DE602005011418D1 (de) | 2009-01-15 |
US20080275478A1 (en) | 2008-11-06 |
US8096989B2 (en) | 2012-01-17 |
JP2007533386A (ja) | 2007-11-22 |
JP4734322B2 (ja) | 2011-07-27 |
CA2564036A1 (fr) | 2005-11-10 |
AU2005237275A1 (en) | 2005-11-10 |
ES2321530T3 (es) | 2009-06-08 |
CA2564036C (fr) | 2012-08-07 |
AU2005237275B2 (en) | 2011-11-24 |
ATE415921T1 (de) | 2008-12-15 |
WO2005105001A3 (fr) | 2006-06-01 |
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