# US 11,298,253 B2 · Implantable medical device for lubricating an artificial contacting surface

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- Number: US 11,298,253 B2
- Document ID: US11298253B2
- Status: Granted
- Kind: B2
- Application number: 15/626,378
- Filed: 2017-06-19
- Published: 2017-12-07
- Granted: 2022-04-12
- Earliest claimed: 2008-01-29
- Applicants: Peter Forsell
- Inventors: Peter Forsell
- Web page: https://patentgrep.com/patent/US11298253B2

## 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 apparatus for treating obesity of a patient having a stomach with a food cavity. The apparatus comprising a volume filling device adapted to be at least substantially invaginated by a stomach wall portion of the patient with the outer surface of the volume filling device resting against the stomach wall, such that the volume of the food cavity is reduced in size by a volume substantially exceeding the volume of the volume filling device. The apparatus further comprises at least one adjustable stretching device adapted to be at least substantially invaginated by a stomach wall portion of the patient with the outer surface of the stretching device resting against the stomach wall and adapted to stretch a portion of stomach wall, and a fluid connection device interconnecting the volume filling device and the stretching device.

## Claims

### Claim 1

An apparatus for treating obesity of a patient having a stomach with a food cavity, the apparatus comprising:
a volume filling device adapted to be at least substantially invaginated by a stomach wall portion of the patient with an outer surface of the volume filling device resting against the stomach wall portion, such that a volume of the food cavity is reduced in size by a volume substantially exceeding the volume of the volume filling device,
at least one adjustable stretching device adapted to be completely invaginated by the patient's stomach fundus wall, when in function, with an outer surface of the at least one adjustable stretching device resting against the stomach fundus wall and adapted to stretch a portion of the stomach fundus wall, and
a fluid connection device interconnecting the volume filling device and the at least one adjustable stretching device.

### Claim 2 (depends on 1)

The apparatus according to claim 1, comprising an adjustment reservoir for adjusting an amount of fluid in at least one of; the at least one adjustable stretching device and the volume filling device.

### Claim 3 (depends on 2)

The apparatus according to claim 2, wherein the adjustment reservoir is adapted to stretch the at least one adjustable stretching device by moving fluid from the adjustment reservoir to the at least one adjustable stretching device to expand the at least one adjustable stretching device to stretch the portion of the stomach fundus wall to create satiety.

### Claim 4 (depends on 1)

The apparatus according to claim 1, comprising a pump adapted for pumping fluid between the at least one adjustable stretching device and the volume filling device, wherein said pump comprises at least one of; an electric pump and a manual pump comprising an adjustment reservoir.

### Claim 5 (depends on 1)

The apparatus according to claim 1, wherein the fluid connection device comprises a first fluid tube interconnected between the volume filling device and the at least one adjustable stretching device.

### Claim 6 (depends on 1)

The apparatus according to claim 1, comprising a non-return valve in the fluid connection device between the volume filling device and the at least one adjustable stretching device to allow movement of fluid from the volume filling device to the at least one adjustable stretching device.

### Claim 7 (depends on 1)

The apparatus according to claim 1, further comprising an injection port, connected to at least one of the volume filling device and the at least one adjustable stretching device to calibrate a fluid volume therein.

### Claim 8 (depends on 1)

The apparatus according to claim 1, comprising a control device for controlling a pump, wherein said control device could be one of: a manual control device including at least one of a wireless remote control, a switch and a subcutaneously placed reservoir or pump to control the pump from the outside of the patient's body, and an automatic control device including an internal control unit and at least one sensor providing a sensing signal to the internal control unit to control the pump based on sensing information from the at least one sensor.

### Claim 9 (depends on 8)

The device according to claim 8, comprising a sensor adapted to be implanted in the patient's body and adapted to sense the food intake of the patient.

### Claim 10 (depends on 1)

The apparatus according to claim 1, wherein the volume filling device is adapted to cause a movement of fluid from the volume filling device to the at least one adjustable stretching device by muscle contractions in the stomach wall portion related to food intake, when implanted.

### Claim 11 (depends on 1)

The apparatus according to claim 1, wherein the fluid connection device between the volume filling device and the at least one adjustable stretching device comprises a release function adapted to release the volume in the at least one adjustable stretching device back to the volume filling device.

### Claim 12 (depends on 11)

The apparatus for treating obesity according to claim 11, wherein said release function comprises a fluid return connection of a substantially smaller area than said fluid connection device, to slowly release back fluid to said volume filling device from the at least one adjustable stretching device to release said stretching of the stomach fundus wall.

### Claim 13 (depends on 11, 12)

The apparatus according to any one of claims 11-12, comprising a second fluid tube interconnected between the volume filling device and the at least one adjustable stretching device, wherein the second fluid tube is so dimensioned, such that the pressures in the volume filling device and the at least one adjustable stretching device will return to equilibrium after a predetermined time after fluid has been injected into the at least one adjustable stretching device to create the feeling of satiety.

### Claim 14 (depends on 13)

The apparatus according to claim 13, wherein the predetermined time is between 1 and 5 hours.

### Claim 15 (depends on 1)

The apparatus according to claim 1, wherein the apparatus comprises at least one of:
a. at least one layer comprising a material selected from a group consisting of: metal, silicon, PTFE, Polyurethane, Teflon®, or a combination of any of metal, silicon, PTFE, Polyurethane and Teflon; and
b. at least one coating, comprising a coating selected from a group consisting of: Parylene coating, Polytetrafluoroethylene coating, Polyurethane coating, and Multi-layer coating.