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
  • A61F5/0013—Implantable devices or invasive measures
  • A61F5/005—Gastric bands
  • A61F5/0066—Closing devices for gastric bands
• • 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
  • A61F5/0056—Gastric bands remotely adjustable using injection ports
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
  • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
  • A61B17/132—Tourniquets
  • A61B17/135—Tourniquets inflatable

Definitions

• the present invention relates to a gastric implant for the treatment of obesity, in particular obesity known as "morbid” obesity.
• Such an implant is commonly called “gastric ring” or “gastroplasty ring”. It is known to treat the pathological obesity of a patient by placing a gastric implant in the form of a ring around the stomach of this patient.
• Such an implant makes it possible to form a pocket of limited dimensions on the upper part of the stomach, communicating with the rest of the stomach through an opening of restricted section, commonly called “stoma”.
• a known gastric implant comprises a flexible band comprising an inflatable pocket on one of its faces and means for closing the implant in the form of a ring, an implantable chamber containing an inflation liquid for this pocket, and a pipe. connecting this pocket to this implantable chamber.
• the band is placed around the patient's stomach so that the inflatable bag is located on the internal face of the ring thus formed, then the ends of the band are joined together to maintain this band in position.
• the implantable chamber allows the supply or withdrawal of inflation liquid to adjust the section of the opening delimited by the ring according to the progress of the patient.
• the means for closing the band in the form of a ring exist in particular in the form of latching systems, as described in document WO-A-94/27504, comprising a passage in which one end of the band is engaged and locks , or interpenetration systems locked by a threaded pin, or sutures, as described in document WO-A-86/04498.
• the existing implants have the drawback of being difficult to install and of inducing a non-negligible risk of deterioration during this installation, in particular at the level of the connection of the pipe to the inflatable pocket when this pipe must be engaged. through an interlocking passage.
• These implants also have the disadvantage of allowing only one ring diameter, or a reduced number of ring diameters, and thus not allow this diameter to be adapted to the specific needs of the patient.
• the closure systems of these implants have the further disadvantage of not allowing, once locked, a reopening of the strip for the repositioning of the implant, without damaging or risking damaging the implant, which is a certain constraint. for the practitioner.
• the removal of the implant after treatment of the patient is not easy.
• Document FR-A-2 827 756 describes a lake usable in endoscopic surgery, having the general shape of a strip and having ends provided with easily removable attachment means, in particular complementary self-gripping bands. This document does not belong to the field of gastric implants and the lakes which it describes is not comparable to a gastric implant.
• Document US-A-5,527,355 describes a tubular implant for treating an aneurysm and a retaining band for this implant, which can be closed by various means, in particular by complementary self-gripping bands. This document does not belong to the field of gastric implants and the implant which it describes is not comparable to a gastric implant. The present invention aims to remedy all of the drawbacks of existing gastric implants.
• the device concerned comprises, in a manner known per se: - a flexible band comprising an inflatable pocket on one of its faces and means for closing it in the form of a ring; - An implantable chamber containing an inflation liquid of this pocket, and - a pipe connecting said pocket to this implantable chamber.
• said closing means comprise complementary hook-and-loop surfaces placed respectively on the two end portions of the strip. Thanks to these complementary hook-and-loop surfaces, the implant is easy to place, without risk, or with a reduced risk, of damaging the implant.
• the implant can be easily repositioned by simple separation of said surfaces and then reapplication of these surfaces one against the other, and the separation of these surfaces allows the implant to be removed after treatment with the same ease.
• the strip may comprise, on its side comprising the pocket, a gradual transition between the end of the pocket and the end portion of the strip comprising the self-gripping surface, allowing the strip to be closed according to numerous diameters possible ring, without forming a substantial detachment capable of injuring the gastric wall.
• the strip may however also have a recess between the end of the pocket and the end portion of the strip comprising the self-gripping surface, forming a stop zone against which the other end of the strip abuts after being put in place.
• a precise closing diameter of the strip is thus defined.
• an end zone of the strip comprises at least one means defining an engagement passage of the other end of the strip, this means making it possible to maintain said self-supporting surfaces. -aggripantes in engagement with each other. Maintaining engagement of these surfaces is thus ensured in particular during inflation of said pocket.
• One end of the strip may be in the form of a rounded point, of so as to facilitate the engagement of this end in said means defining a passage, without this end being aggressive for the surrounding tissues.
• the pipe may, at the time of implantation placement, not be connected to the implantable chamber and present a pointed terminal part, in rod or in pallet at its end intended to be connected to this chamber.
• This end portion facilitates the engagement of the pipe in said means defining a passage, thereby helping to reduce the risk of deterioration of the implant.
• This end part is, after the band has been put in place, sectioned and then the pipe is connected to the chamber.
• the strip may include at least one means defining a housing for receiving and retaining the pipe against the strip. This means eliminates the risk of pulling on the pipe that could damage the pipe at its connection to the pocket.
• This means defining a housing for receiving and retaining the pipe against the strip may in particular consist of a pair of slightly flexible projections, delimiting said housing between them and forming a clip ring for the pipe.
• Figure 1 is a perspective view according to a first embodiment, after placement around a stomach, this stomach being fictitiously shown transparently for clarity of the drawing;
• Figure 2 is a perspective view of a strip it comprises;
• Figure 3 is a view of this strip in longitudinal section;
• Figure 4 is one of this side strip, before inflation of a chamber it comprises;
• Figure 5 is a view similar to Figure 4, after inflation of the chamber;
• Figure 6 is a partial perspective view of the two ends of the strip, according to a second embodiment, before assembly of these ends;
• Figure 7 is a view similar to Figure 6, after assembly of the ends of the strip;
• Figure 8 is a side view of the strip;
• Figure 9 is a view of the top strip, according to a third embodiment;
• FIG. 1 represents a gastric implant 1 of treatment of obesity, in particular obesity known as "morbid", placed around a stomach 100.
• this implant 1 makes it possible to form a pocket 101 of limited dimensions on the upper part of the stomach 100, communicating with the rest 102 of the stomach through an opening 103 of restricted section, commonly called "stoma". The filling of this pocket 101 gives the patient more quickly the feeling of satiety.
• the implant 1 comprises a flexible strip 2, suitable for being placed around the stomach 100, comprising an inflatable pocket 3 on one of its faces, an implantable chamber 4 and a pipe 5 connecting the pocket 3 to this implantable chamber 4.
• the strip 2 and the pocket 3 are made in one piece, in particular in silicone, the pocket 3 being delimited by the strip 2 on the one hand and by a deformable membrane 10 on the other hand.
• the strip 2 At one of its ends, the strip 2 comprises an elongated boss 11 projecting longitudinally and transversely relative to the rest of the strip. This boss 11 and the strip 2 are crossed by the pipe 5, which opens into the pocket 3.
• the part of the boss 11 protruding from the strip 2 forms a recess 12 with the part of the strip 2 along which the pocket is located. 3, this step delimiting a transverse end face.
• this protruding part of the boss 11 comprises a coating 13 forming part of a pair of complementary Velcro® type hook-and-loop coatings, for example a coating having pins forming hooks.
• the opposite end of the strip 2 comprises, on the side opposite to that on which the pocket 3 is located, the other covering 14 of said pair of complementary hook-and-loop coverings, that is to say the covering comprising fibers. in the example considered.
• the implantable chamber 4 comprises a container 15 containing an inflating liquid from the pocket 3 and a membrane 16 which can be pierced by the needle of a syringe allowing, percutaneously, to introduce into the container 15, or to withdraw, inflating liquid from the bag 3.
• the pipe 5 is formed by a tube made of flexible material, in particular silicone. It connects the pocket 3 to the implantable chamber 4. As shown in FIGS. 1, 4 and 5, the strip 2 is maintained in its circular position by the arrival of the covering 13 in cooperation with the covering 14.
• the transverse face delimited by the recess 12 comes in the immediate vicinity of the opposite end of the strip 2, defining a precise position for closing the strip 2, and therefore a precise diameter of the gastric band thus formed.
• the bag 3 can then be more or less inflated by means of the liquid contained in the chamber 4, in order to adjust the section of the "stoma" 102 according to the needs and the evolution of the patient. Thanks to these coatings 13 and 14, the implant 1 is easy to put in place, without risk, or with a reduced risk, of deterioration.
• the implant 1 can be easily repositioned by simple separation of said coatings 13, 14 then reapplication of these coatings one against the other, and the separation of these coatings makes it possible to remove the implant 1 after treatment with the same ease.
• the end of the strip 2 opposite to that comprising the boss 11 has a loop 17 making it possible to ensure perfect retention of the coatings 13 and 14.
• the loop 17 can be removably connected to the strip 2 at at least one of its ends, to allow the engagement of the pipe 5 through it, or the pipe 5 can be separable from the container 15, for the same purpose.
• the end of the strip 2 comprising the boss 11 forms a progressive recess 12 with the protruding part of this boss, such that the strip has a transverse face inclined on the side opposite to this protruding part.
• the strip 2 can thus be closed in the form of a ring according to a plurality of possible positions of the ends of this strip relative to each other, thus allowing adjustment of the diameter of the ring that this strip 2 forms once closed.
• the pipe 5 is fixed along the boss 11, and the strip 2 comprises, beyond the covering 14, a loop or an open clip ring 18 suitable for receiving the pipe 5 after engagement of this pipe through the passer-by 17.
• the latter in this case comprises lateral extensions 17a, projecting from the longitudinal side opposite to the strip 2, which provide reinforced lateral support for the boss 11 by this passer-by 17.
• Figures 11 to 13 show that, to facilitate its engagement in the passer-by 17 and before its connection to the chamber 4, the end of the pipe 5 not connected to the strip 2 can have an end 5a of tapered shape (cf. figure 11), an end 5b in the form of a rod, increasing its rigidity (cf. FIG. 12), or an end 5c in the form of a pallet (cf. FIG. 13). These ends are sectioned once the engagement of the pipe 5 is carried out in the passage 17, then the sectioned end of this pipe is connected to the chamber 4.
• the invention thus provides a gastric implant which can be put in place without risk of deterioration, or at least greatly reducing this risk, which can be implemented, if necessary, according to several possible diameters, which can be easily repositioned, and which can be easily removed after treatment of the patient. It goes without saying that the invention is not limited to the embodiment described above by way of example but that it extends to all the embodiments covered by the claims appended hereto.

Landscapes

• Health & Medical Sciences (AREA)
• Child & Adolescent Psychology (AREA)
• Obesity (AREA)
• Nursing (AREA)
• Orthopedic Medicine & Surgery (AREA)
• Engineering & Computer Science (AREA)
• Biomedical Technology (AREA)
• Heart & Thoracic Surgery (AREA)
• Vascular Medicine (AREA)
• Life Sciences & Earth Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Surgical Instruments (AREA)
• Prostheses (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=34855042

Family Applications (1)

Country Status (3)

Family Cites Families (5)

• 2004
  • 2004-03-04 FR FR0402249A patent/FR2867062B1/fr not_active Expired - Fee Related
• 2005
  • 2005-03-03 WO PCT/FR2005/000508 patent/WO2005087146A2/fr not_active Application Discontinuation
  • 2005-03-03 EP EP05733028A patent/EP1720496A2/de not_active Withdrawn

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events