# US 10,945,870 B2 · Apparatus for treating obesity

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- Number: US 10,945,870 B2
- Document ID: US10945870B2
- Status: Granted
- Kind: B2
- Application number: 12/864,952
- Filed: 2009-01-29
- Published: 2010-12-09
- Granted: 2021-03-16
- Earliest claimed: 2008-01-29
- Applicants: Peter Forsell
- Inventors: Peter Forsell
- Web page: https://patentgrep.com/patent/US10945870B2

## CPC

- A61F 5/0083: {Reducing the size of the stomach, e.g. gastroplasty (surgical interventions A61B17/00)}
- A61B 1/32: Devices for opening or enlarging the visual field, e.g. of a tube of the body
- A61B 17/00234: {for minimally invasive surgery (A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence)}
- A61B 17/0469: {Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery}
- A61F 2/04: Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts (A61F2/18, A61F2/20 take precedence; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95)
- A61B 1/04: combined with photographic or television appliances
- A61B 1/06: with illuminating arrangements
- A61B 1/2736: {Gastroscopes}
- A61B 1/3132: {for laparoscopy}
- A61B 17/00: Surgical instruments, devices or methods (A61B18/00 takes precedence; dental tools A61C3/00; eye surgery A61F9/007; ear surgery A61F11/20)
- A61B 17/064: Surgical staples, {i.e. penetrating the tissue}
- A61B 17/068: Surgical staplers {, e.g. containing multiple staples or clamps}({staplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105;} for performing anastomosis A61B17/115; {staplers in general B25C5/00})
- A61B 17/0682: {for applying U-shaped staples or clamps, e.g. without a forming anvil}
- A61B 17/08: Wound clamps {or clips, i.e. not or only partly penetrating the tissue (suture bridges A61B17/0466); Devices for bringing together the edges of a wound}
- A61B 17/30: Surgical pincettes, i.e. surgical tweezers {without pivotal connections (for holding suture needles or materials A61B17/0483)}
- A61B 17/320016: {Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes (A61B10/0233, A61B17/29, A61B17/3207 take precedence)}
- A61B 17/3423: {Access ports, e.g. toroid shape introducers for instruments or hands (access sites for liquids A61M39/0247)}
- A61B 17/3474: {Insufflating needles, e.g. Veress needles}
- A61B 17/3478: {Endoscopic needles, e.g. for infusion (biopsy needles A61B10/0233; catheters with injection needles A61M25/0067)}
- A61B 2017/00278: {Transorgan operations, e.g. transgastric}
- A61B 2017/00561: {creating a vacuum}
- A61B 2017/00818: {Treatment of the gastro-intestinal system}
- A61B 2017/00827: {Treatment of gastro-esophageal reflux}
- A61B 2017/081: {Tissue approximator (A61B2017/1103, A61B17/8866 take precedence)}
- A61B 2017/306: {holding by means of suction}
- A61B 2017/308: {with suction cups}
- A61F 5/0003: {Apparatus for the treatment of obesity; Anti-eating devices (surgical instruments or methods for treatment of obesity, devices specially adapted therefor A61B17/00; hollow or tubular parts of organs A61F2/04)}
- A61F 5/0013: {Implantable devices or invasive measures}
- A61F 5/0026: {Anti-eating devices using electrical stimulation}
- A61F 5/003: {inflatable}
- A61F 5/0033: {with more than one chamber}
- A61F 5/0036: {Intragastrical devices}
- A61F 5/004: {remotely adjustable}
- A61F 5/0043: {using injection ports}
- A61F 5/0046: {with wireless means}
- A61F 5/005: {Gastric bands}
- A61F 5/0063: {wrapping the stomach}
- A61F 5/0069: {in the wall of the stomach}
- A61F 5/0073: {in the abdominal cavity, e.g. not attached to the stomach}
- A61F 5/0076: {preventing normal digestion, e.g. Bariatric or gastric sleeves}
- A61F 5/0079: {Pyloric or esophageal obstructions}
- A61F 5/0086: {using clamps, folding means or the like}
- A61F 5/0089: {Instruments for placement or removal}
- A61F 2002/044: {Oesophagi or esophagi or gullets}
- A61F 2002/045: {Stomach, intestines}
- A61F 2005/0016: {comprising measuring means}
- A61F 2005/002: {for sensing mechanical parameters}
- A61F 2005/0023: {for sensing chemical parameters}
- A61F 2250/0001: Means for transferring electromagnetic energy to implants
- A61F 2250/0004: adjustable
- A61N 1/36007: {of urogenital or gastrointestinal organs, e.g. for incontinence control}
- 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 (dental prosthetics A61C)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B)

## Abstract

An volume filling device for treatment of obesity is placed outside the stomach wall of the patient to reduce the inner volume of the stomach, thereby affecting the patient's appetite. By providing the volume filling device outside the stomach wall, contact with stomach acids is avoided, thereby increasing the life of the device.

## Claims

### Claim 1

An apparatus for treating obesity of an obese patient, comprising:
a volume filling device adapted to be completely invaginated by a wall portion of a stomach of the patient,
wherein the volume filling device is adapted to be placed on the outside of the wall portion, with an outer surface of the volume filling device resting against the outside of the wall portion and such that a volume of a food cavity of the stomach is reduced in size by a volume having a treatment effect on the obesity,
wherein the volume filling device is formed of at least two distinct portions, each of which having a size allowing it to be inserted in the patient through a gastroscopic instrument, said at least two distinct portions being configured to be reversibly interconnected to each other such that a first one of said least two distinct portions has at least one point of direct contact with another one of said at least two distinct portions.

### Claim 2 (depends on 1)

The apparatus according to claim 1, further comprising an inlet port comprising a fluid connection adapted to connect the volume filling device to a gastroscopic instrument.

### Claim 3 (depends on 1)

The apparatus according to claim 1, wherein the at least two distinct portions are configured to form the volume filling device having an elongated shape, and wherein the volume filling device is adapted to be invaginated, such that the elongated shape of the volume filling device is substantially aligned with a food passageway of the patient.

### Claim 4 (depends on 1)

The apparatus according to claim 1, wherein the volume filling device has a volume of less than 200 ml.

### Claim 5 (depends on 1)

The apparatus according to claim 1, wherein the apparatus is adapted to be operated by an instrument, and wherein the apparatus comprises a holding device adapted to be held by the instrument.

### Claim 6 (depends on 1)

The apparatus according to claim 1, wherein at least a portion of the volume filling device is provided with at least one of: at least one coating and at least one layer, and wherein the at least one layer or at least one coating comprises at least one of: Parylene, polytetrafluoroethylene, polyurethane, silicon, PTFE, metal and any multilayer combination thereof.

### Claim 7 (depends on 1)

The apparatus according to claim 1, wherein the volume filling device has a varying circumference, such that each of the at least two distinct portions has a greater circumference than a central portion of the volume filling device located between the at least two distinct portions, such that the fixation of the volume filling device is improved when the volume filling device is invaginated in the wall portion of the stomach of the patient.

### Claim 8 (depends on 1)

The apparatus according to claim 1, wherein the volume filling device comprises an expandable structure adapted to expand when the device is invaginated in the stomach wall, and wherein said expandable structure comprises a bellows shape adapted to take into account the fibrosis surrounding the device when implanted, such that the movement of the bellows is substantially un-affected by said fibrosis.

### Claim 9 (depends on 1)

The apparatus according to claim 1, further comprising a fixation portion for fixating the volume filling device to the outside of the stomach wall, when the volume filling device is invaginated by the wall portion of the stomach of the patient.

### Claim 10 (depends on 9)

The apparatus according to claim 9, wherein the fixation portion comprising at least one through hole adapted to receive at least one suture for fixating the volume filling device to the outside of the wall portion of the stomach of the patient.

### Claim 11 (depends on 1)

The apparatus according to claim 1, further comprising an operation device for post-operatively and non-invasively adjusting the volume of the volume filling device by moving fluid between a reservoir and the volume filling device.

### Claim 12 (depends on 11)

The apparatus according to claim 11, comprising a sensor or sensing device adapted to be implanted in the body of the patient, wherein the sensor or sensing device is adapted to directly or indirectly sense the food intake of the patient, and wherein the sensor or sensing device provides input to the operation device, such that the operation device can post-operatively and non-invasively adjust the volume of the volume filling device on the basis of input from the sensor or sensing device.

### Claim 13 (depends on 11)

The apparatus according to claim 11, wherein the operation device comprises a motor, a pump or a motor and pump.

### Claim 14 (depends on 13)

The apparatus according to claim 13, further comprising a reversing device for altering the direction of the fluid flow, such that when fluid is moved in a first direction the volume filling device is expanded, and when fluid is moved in a second direction the volume filling device is contracted.

### Claim 15 (depends on 11)

The apparatus according to claim 11, wherein the volume filling device has at least one of: electronics and an energy source for the operation device which is integrated into the volume filling device.

### Claim 16 (depends on 1)

The apparatus according to claim 1, further comprising an implantable reservoir adapted to be placed in the abdomen of the patient and in fluid connection with the volume filling device, so as to allow the volume of the volume filling device to be altered by moving fluid between the reservoir and the volume filling device.

### Claim 17 (depends on 16)

The apparatus according to claim 16, wherein the reservoir further comprises a movable wall adapted to adjust an outer volume of the reservoir so as to move the fluid between the reservoir and the volume filling device.

### Claim 18 (depends on 16)

The apparatus according to claim 16, further comprising a control unit configured to be operatively connected to the reservoir so as to control the movement of fluid between the reservoir and the volume filling device.

### Claim 19 (depends on 18)

The apparatus according to claim 18, wherein the control unit is configured to be controlled by means of a wireless remote control and a subcutaneously placed device adapted to be manipulated non-invasively by the patient.