CN101484099A - Gastric belt preformed in a 'c' shape - Google Patents
Gastric belt preformed in a 'c' shape Download PDFInfo
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- CN101484099A CN101484099A CNA2007800251845A CN200780025184A CN101484099A CN 101484099 A CN101484099 A CN 101484099A CN A2007800251845 A CNA2007800251845 A CN A2007800251845A CN 200780025184 A CN200780025184 A CN 200780025184A CN 101484099 A CN101484099 A CN 101484099A
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- tubular body
- band
- expandable
- stomach band
- stomach
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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
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- Child & Adolescent Psychology (AREA)
- Obesity (AREA)
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- Orthopedic Medicine & Surgery (AREA)
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- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
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Abstract
The invention relates to an inflatable gastric belt comprising an elongate tubular body (2), connecting means (10, 11) arranged in relation with the two ends (12, 19), and an inflation catheter. According to the invention, the tubular body (2) is preformed in such a way that, at rest and before closure of the belt, it has a longitudinal cross section with the general shape of a ''C''.
Description
The present invention relates to a kind of apparatus technology, the junction between the implanted esophagus abdomen of this equipment section stomach function regulating is used to produce partial restriction, allows control to have the feeding amount of patient of this equipment.
For such partial restriction is provided, knownly can use for example expandable stomach band or the ring described in patent application EP0769282, the FR 2799118.
According to these documents, expandable stomach band comprises the flat tubular body of the prolongation of being made by flexible material, described flexible material is strain and define chamber closely at least in part, can expand to show the work surface and the back side that is positioned at the work surface opposite side in this chamber, described work surface is set to contact with stomach.
In order to make described band closed forming ring, described band comprises that also to be provided at tubular body terminal and allow the connecting device of stomach band with the form closure of ring, and certainly, work surface is oriented towards the inboard.At last, stomach band also comprises the inflating catheter that closely is connected and is connected with aerating device with expandable chamber.Aerating device can for example be made of the shell that has self-closing film, this self-closing film can be pierced through by syringe needle is first-class, can realize injection in this way or remove fluid, thereby also control the degree of the stomach contraction that produces by expandable stomach band with the expansion of control chamber, described fluid for example, but need not to be physiological serum.
Yet, band although it is so is normally gratifying and allowed to reach the curative effect of expectation as a rule after implantation, but found that its implantation time may be longer relatively, this is the difficulty owing to closed stomach band, especially in the process of installing by the celioscopy method.
Therefore, need the novel stomach band that is easier to implant and especially in the process of installing, be easier to closure badly by the celioscopy method.
In order to reach this purpose, the present invention relates to expandable stomach band, it comprises:
The tubular body that ■ prolongs, it is made by flexible material, and described flexible material can be to small part
The ground strain also defines expandable closely chamber, and have the back side and work surface,
The ■ connecting device, it is arranged on described tubular body two ends and allows the shape of described stomach band with ring
The formula closure, described work surface is arranged on the inboard of described ring,
■ and inflating catheter, it is connected with aerating device and by closely being connected with expandable chamber at the described tubular body back side or at the air-filled pore that an end of the tubular body of described prolongation provides.
According to the present invention, described expandable stomach band is characterised in that the tubular body of described prolongation is preformed, makes when static or before this band closure, it has roughly the longitudinal section of " C " shape.
The fact that tubular body is pre-formed as " C " shape has made things convenient for the installation and the closure of stomach band basically, and when especially implanting by the celioscopy method, this is because the two ends that no longer need to catch tubular body are to begin to form annular.
According to feature of the present invention, when static and before the band closure, the segment angle of tubular body extension is 160 ° to 300 °, preferred 250 ° to 280 °.Found that these values are particularly suitable for the anatomical features of the stomach that stomach band implants and greatly facilitate the operation of zonula occludens.Described band is that the preformed fact has been avoided the error when the mounting strap of the back of stomach, and this is to be pre-formed as C shape because of band, and work surface can not be toward the outer side when band was closed.
In order to make stomach band adapt to implantation condition in best as far as possible mode, according to another characteristic of the invention, the work surface of expandable tubular body when static and the radius of curvature before described band is closed be 22mm to 35mm, preferably 22mm to 30mm, especially more preferably 22mm to 29mm.
Be still the purpose for the anatomical conditions that adapts to implantation site better, according to another characteristic of the invention, the extended length of the work surface of expandable tubular body is 110mm to 130mm, preferred 112mm to 117mm or 123mm to 127mm.
According to the present invention for stomach band around stomach on better another feature of stability of stomach band is provided, expandable tubular body has rectangle or oblong cross section in the central area when static and before described band closure.Therefore, when static and the inflation before, the work surface of expandable tubular body has the shape of the part of cylindrical ring.
According to the present invention, allow the closed connecting device that forms ring of band to make in any suitable manner.In preferably but in the not exclusive embodiment of stomach band of the present invention, connecting device comprises the tail pipe that is used for connecting duct and inflatable chamber in tubular body first stub area that is called as the inflation end on the one hand, on the other hand, near the opposite end that is called as front end, comprise being provided at least one arc part that being used on the tubular body back side passed through union tail.
In the scope of this preferred embodiment of connecting device, and for further facilitate install and zonula occludens to form ring, at least a portion of union tail is an arc when static and before the band closure, it extends as the prolongation of tubular body sweep.
In preferred embodiments, for convenient closed in best as far as possible mode, the segment angle that the sweep of union tail extends is 45 ° to 75 °, preferred 50 ° to 60 °.
For convenience control connection tail pipe and connected conduit, union tail comprises the sweep of near-end and the straight line portion of far-end, this straight line portion extends along the tangential direction of sweep curve as sweep.
According to another characteristic of the invention, and in order to reduce the risk that stomach band is snarled by the tissue around the stomach, the edge that connects inflation end and the tubular body of union tail has level and smooth serpentine, to define the bonding pad with outstanding corner angle.
According to the present invention, stomach band can be locked in many ways and is annular.In the preferred embodiment scope of stomach band, and in order to realize locking, union tail has at least one fir tree locking device, it comprises two outstanding angles (return) that are roughly " V " shape that are arranged at each side of union tail, and this outstanding angle is oriented towards tubular body and two main side formation and is less than or equal to 45 ° angle.The existence at two outstanding angles of V-arrangement makes each fir tree device have the shape of arrow or rifle point.
In the present invention preferably but in the not exclusive embodiment, stomach band comprises at least two fir tree locking devices, and first is called the near-end locking device, and its sweep along the union tail near-end extends, second is called the far-end locking device, and its straight line portion along the union tail far-end extends.
In order to finish locking and to prevent that the stomach tissue on every side at the outstanding implanted stomach band place, angle of V-arrangement from snarling, described band preferably comprises the same number of arc part of locking device of the fir tree on a plurality of and the union tail in the zone, the back side of tubular body, each arc part comprises that two grooves or two connecting plates answer the outstanding angle of " V " shape of locking device with immobile phase.
Still in order to ensure the better locking property of connecting device, and according to another characteristic of the invention, each arc part has defined the passage that holds union tail, the inwall of this passage is assembled along the direction away from the tubular body end, and the part that union tail is placed in the passage has complementary shape, and described passage is defined by arc part during in make position when described band.As indicated above, the complementarity of shape has strengthened locking and has prevented to be organized between union tail and arc part or the parts across it and grown up.
According to the present invention, expandable tubulose band can be with several different methods production.In preferred embodiments, tubular body and union tail form the assembly of integral type, and it obtains by injection moulding in arcual cavity.Then, the free end of tubular body can the closed or formation by the plug that adds.
According to purpose is convenient to locate another feature of the present invention of stomach band by roentgenography, and this band comprises at least one line of being made by the radiopaque material, and the wall of itself and expandable tubular body is integrated as integral body.The line of opaque material can be incorporated into a wall or another wall of expandable tubular body separately, maybe it can be incorporated in the inextensible flexible reinforcing band, the back side of described reinforcing band and expandable tubular body is integrated as integral body.
Also according to another characteristic of the invention, and in order to ensure the best visibility of radiopaque line, this line is made by auriferous radiopaque material.
According to the present invention, expandable stomach band can be made by any suitable biocompatible materials, and preferred Lycoperdon polymorphum Vitt or lacklustre biocompatibility silicone are so that its outer surface is illuminated and not dazzling when observing by celioscope equipment.
The various features that should be appreciated that the invention described above can be used simultaneously or only partly use with different compound modes, to produce inflatable gastric band of the present invention.
In addition, multiple further feature of the present invention will become apparent by the following description, and the following description provides with reference to the accompanying drawings, and described accompanying drawing illustrates the preferred of inflatable gastric band of the present invention but the embodiment of indefiniteness.
Fig. 1 is the perspective view of stomach band according to the present invention when static state.
Fig. 2 is the front view of the expandable tubular body of stomach band as shown in Figure 1.
Fig. 3 is the link side view of the expandable tubular body of stomach band as shown in Figure 1.
Fig. 4 is the longitudinal section according to the IV-IV face of stomach band among Fig. 3.
Fig. 5 is the cross section according to the V-V line of Fig. 4.
Fig. 6 is the partial enlarged view according to the arc part of the stomach band of the VI-VI line of Fig. 2.
The also whole as shown in Figures 1 to 4 stomach band of the present invention that is denoted as label 1 comprises tubular body 2, and it defines at least one inflatable chamber 3 closely.According to the present invention, tubular body 2 from above be roughly C shape the front view when observing.
In addition, it should be noted that, when static, promptly when chamber 3 when being states and be closed with before forming ring at band in venting, tubular body 2 is roughly flat and has substantial rectangular or oblong cross section, as showing in greater detail among Fig. 5, be connected in the rectangle in the cross section general shape of inflatable chamber 3 is same.
Stomach band 1 has the back side 4 and work surface 5, and described work surface 5 will contact with esophagus or the stomach region that stomach band is placed, as from hereinafter as can be seen.
The roughly C shape of expandable tubular body 2 makes the longitudinal section of tubular body 2 have C shape, as more specifically showing among Fig. 4, this C shape is extended becomes segment angle, its angle a in the center is 160 ° to 300 °, preferred 250 ° to 280 °, the value of angle a can also be one of those different range limits or other limit.When static and before the band closure is with the formation ring, so the work surface 5 of tubular body 2 has the shape of the part of cylindrical ring, this cylindrical ring has 22mm to 35mm, preferred 22mm to 30mm, the especially more preferably constant curvature radius R of 22mm to 29mm, and the value of radius of curvature R can also be one of those different range limits or other limit.In addition, the extended length of the work surface of expandable tubular body 2 is 110mm to 130mm, preferred 112mm to 117mm or 123mm to 127mm, and latter two scope is corresponding to two of stomach band of the present invention independent sizes.
Be with 1 closure forming ring in order to make, with 1 connecting device 10 and 11 that also comprises the two ends that are provided at band.Connecting device 10 and 11 can make in any suitable method.
According to shown in example, connecting device 10 at first comprises the tail pipe 13 that is used for connecting duct 14 and inflatable chamber 3 in first terminal 12 zones that are called as inflation end of tubular body 2.
According to shown in example, union tail 13 shows in greater detail as Fig. 5 basically as the longitudinal extension of tubular body 2 and have the inner passage 15 that is connected with chamber 3 by air-filled pore 16.Should be appreciated that passage 15 communicates with the internal pipeline 17 of conduit 14, it is connected with chamber 3 through air-filled pore 16 then.When static and the band closure before, union tail 13 is curved, it is as the prolongation of the bending of tubular body 2.This arc can extend along the total length or the partial-length of union tail 13.According to shown in example, arc only influences the 18p part that is called as proximal part of union tail, this part is extended at the inflation end 12 of union tail 13 and central area.Arcual proximal part 18p extends and becomes segment angle, and its angle beta in the center is 45 ° to 75 °, and preferred 50 ° to 60 °, the value of angle beta can also be one of those different range limits or other limit.According to shown in example, proximal part 18p extends by collinear distal portions 18d, this distal portions extends along the tangential direction of the curve of sweep 18p.
In addition, be arranged in the zone of inflation end 12 ends opposite, that be called free end 19 or near the connecting device 11 of free end 19 shown in example constitute by at least one arc part, and under present case, constitute by two arc parts 20,21, described arc part be set at tubular body 2 the back side 4 the zone and be in order to hold tail pipe 13.
According to shown in example, two arc parts 20,21 have certain distance each other, and tail pipe 13 comprises hook or prevents to return (anti-return) device 22 that in case union tail 13 combines with arc part 20,21, this device prevents that it from being deviate from because of carelessness.According to shown in example, prevent to return near-end and the far end device 22 that hooking device comprises two fir tree, each all cooperates with corresponding arc part 20,21.On the so-called near-end sweep 18p of union tail, provide first locking device or locking device in a preferred manner, and second locking device or far-end locking device are along the distal portions 18d extension of union tail.Each locking device 22 comprises two outstanding angles 23 that are roughly V-arrangement, and each side that it is arranged on union tail is orientated simultaneously towards tubular body 2.As among Fig. 1 as can be seen, outstanding angle 23 is set to basically parallel or tangent with the cylinder on the surface of the work surface 5 that produces expandable tubular body 2.The main side 24,25 of giving the outstanding angle 23 of its V-arrangement thereon forms and is less than or equal to 45 ° angle.
In order to realize locking, first arc part 20, or title near-end arc part, has wing, it extends towards second arc part 21, so that define cavity 26, cavity 26 holds all or part of with the end that the is called as near-end 12 immediate locking devices 22 of tubular body 2.Arc part 20 also comprises two connecting plates, combines the outstanding angle 23 of the near-end locking device 22 that is arranged in cavity in its lower section.In an identical manner, second arc part 21 comprises two grooves 28 at its outburst area that is used for being connected with the back side 4 of tubular body 2, when stomach band 1 closed formation encircles, and outstanding angle 23 combination in groove 28 of second locking device.As shown in Figure 4, the back side 4 of the wall of each groove 28 and described band forms acute angle.Define the surface of main inner surface 24 at each outstanding angle 23 and the following formation obtuse angle of locking device, the acute angle complementation of itself and groove 28, as shown in Figure 1.Such shape complementarity has been guaranteed effective locking.
Be still the purpose of locking for better, each arc part 20,21 has defined the passage that holds union tail 13, and the inwall of this passage is assembled along the direction away from tubular body 2 ends 19, shows in greater detail as Fig. 1 and Fig. 6.When described band is a closure state when forming ring, place parts 29 and 30 to have complementary shape by the union tail 13 of arc part 20 and 21 each passage that is defined, make that they occupy the whole interior space of corresponding arc part on the one hand, and they prevent that tail pipe 13 from sliding and prevent that the closed internal diameter that forms the stomach band 1 of ring from reducing on the other hand.And fir tree device 22 prevents that the tail pipe 13 of locking from sliding round about.
In addition, the free end 32 of conduit 14 passes through cop plug 33 and closure, and this prevents from material to be introduced the passage of conduit and be convenient to conduit is introduced arc part 20 when stomach band is closed.
After the stomach band closure, plug 33 can be cut so that aerating device 34 to be installed.
Expandable stomach band 1 can be made by any suitable biocompatible materials, for example, biocompatibility or implantable other silicone of level, this will give tubular body 2 and be required flexibility and the elasticity of chamber 3 inflations.Preferably, can be with the dyeing of used biocompatibility silicone so as its be Lycoperdon polymorphum Vitt and its outer surface not dazzling when shining and observing by celioscope equipment.Not dazzling characteristic can also obtain by give lacklustre outward appearance on the outer surface of stomach band 1.
Then, connecting device 10 and 11 is operated so that expandable stomach band 1 closed formation encircles, as shown in Figure 4.
In addition, according to another characteristic of the invention, shrink, also provide the wall with the tubular body 2 that constitutes the back side 4 to be combined into whole, flexible, non-stretchable reinforcing band 40 in order to guarantee to control better the stomach that forms by stomach band 1.Therefore, when chamber 3 was inflated, deformation entad took place basically in stomach band 1.Flexible reinforcing band 40 can be made by any suitable non-stretchable flexible material, for example, but not exclusively, dacron.
Preferably, reinforcing band 40 is embedded in the wall of the tubular body 2 that forms the back side 4 fully, and the material that is configured tubular body 2 surrounds fully.
In addition, be easy to be detected by X ray in order to make stomach band 1 of the present invention, with radiopaque line 41, for example gold thread is incorporated in the tubular body 2 and is also preferably incorporated in its back side.Radiopaque line 41 can be independent of reinforcing band 40 maybe can form its inalienable part.
According to feature of the present invention, the edge 42 that connects the tubular body 2 of inflation end 12 and union tail has level and smooth serpentine, to define the bonding pad with outstanding corner angle.Be convenient to when implanting stomach band of the present invention, to make stomach band to penetrate tissue and/or liparitosis in this shape of the bonding pad between tubular body 2 and the union tail 13 around stomach.
Should be appreciated that within the scope of the claims and can make multiple modification the present invention.
Claims (according to the modification of the 19th of treaty)
1. expandable stomach band, it comprises:
The tubular body (2) that ■ prolongs, it is made by flexible material, and described flexible material is strain and define expandable closely chamber (3) at least in part, and has the back side (4) and work surface (5),
■ connecting device (10,11), it is arranged on described tubular body (2) two ends (12,19) and allows the form closure of described stomach band with ring, and described work surface is arranged on the inside of described ring,
■ and inflating catheter (14), it is connected with aerating device (34) and by being provided in the described back side (4) or closely being connected with expandable chamber (3) at the air-filled pore (16) of an end of the tubular body (2) of described prolongation,
It is characterized in that when static or before described band closure, described tubular body (2) has being roughly flat shape and being preformed of substantial rectangular or oblong cross section, makes it have roughly the longitudinal section of " C " shape.
2. expandable stomach band as claimed in claim 1, it is characterized in that described tubular body (2) when static and the segment angle (α) of extension before described band is closed be 160 ° to 300 °, preferred 250 ° to 280 °.
3. expandable stomach band as claimed in claim 1 or 2, the work surface (5) that it is characterized in that described tubular body (2) when static and the radius of curvature (R) before described band is closed be 22mm to 35mm, preferably 22mm to 30mm, more preferably 22mm to 29mm.
4. as the described expandable stomach band of arbitrary claim in the claim 1 to 3, it is characterized in that the extended length of the work surface (5) of described tubular body (2) is 110mm to 130mm, preferred 112mm to 117mm or 123mm to 127mm.
5. as the described expandable stomach band of arbitrary claim in the claim 1 to 4, it is characterized in that described connecting device (10,11) comprise the tail pipe (13) that is used to connect described conduit (14) and described inflatable chamber in first end (12) zone that is called as the inflation end of described tubular body on the one hand, and on the other hand, comprising that near the opposite end (19) that is called as front end on the described back side that is provided at described tubular body at least one is used to the arc part (20,21) that union tail is passed through.
6. expandable stomach band as claimed in claim 5, at least a portion (18p) that it is characterized in that described union tail (13) has the arc as the extension of tubular body sweep when static and before described band closure.
7. expandable stomach band as claimed in claim 6 is characterized in that the segment angle (β) of sweep (18p) extension of described union tail (13) is 45 ° to 75 °, preferred 50 ° to 60 °.
8. as claim 6 or 7 described expandable stomach bands, it is characterized in that described union tail (13) comprises the sweep (18p) of near-end and the straight line portion (18d) of far-end, described straight line portion is along the tangential direction of the curve of sweep (18p), as the prolongation of sweep (18p) and extend.
9. as the described expandable stomach band of arbitrary claim in the claim 5 to 8, the edge that it is characterized in that connecting the described tubular body of described inflation end and described union tail has level and smooth serpentine, to define the bonding pad with outstanding corner angle.
10. as the described expandable stomach band of arbitrary claim in the claim 5 to 9, it is characterized in that described union tail (13) has the locking device (22) of at least one fir tree, described locking device (22) comprises two outstanding angles (23) that are roughly " V " shape that are arranged at each side of described union tail (13), described outstanding angle is oriented towards described tubular body (2) and the formation of two main side (21,25) and is less than or equal to 45 ° angle.
11. as claim 8 and 10 described expandable stomach bands, it is characterized in that the locking device that it comprises at least two fir tree, first is called the near-end locking device, its sweep along described union tail near-end extends; Second is called the far-end locking device, and its straight line portion along described union tail far-end extends.
12. as claim 10 or 11 described expandable stomach bands, it is characterized in that zone, its back side in described tubular body (2) (4) comprises the same number of arc part (20 of locking device (22) of the fir tree on a plurality of and described union tail (13), 21), each arc part comprises that two grooves (28) or two connecting plates (27) answer the outstanding angle of " V " shape of locking device with immobile phase.
13. as the described expandable stomach band of arbitrary claim in the claim 5 to 12, it is characterized in that each arc part (20,21) defined the passage that holds described union tail, the inwall of described passage is assembled along the direction away from described tubular body end (19), and be that described union tail is placed in the described part (29 in the described passage, 30) have complementary shape with described passage, described passage is defined by described arc part during in make position when described band.
14. as the described expandable stomach band of arbitrary claim in the claim 1 to 13, it is characterized in that described tubular body (2) and described union tail (13) form the assembly of integral type, described assembly obtains by injection moulding in arcual cavity.
15. as the described expandable stomach band of arbitrary claim in the claim 1 to 14, it is characterized in that it comprise at least one that make by the radiopaque material, be integrated as whole line (41) with the wall of expandable tubular body (2).
16. expandable stomach band as claimed in claim 15, the line (41) that it is characterized in that described radiopaque material are incorporated into the described back side (4) with described tubular body (2) and are combined in whole, the non-stretchable flexible reinforcing band (40).
17., it is characterized in that the line of described radiopaque material comprises gold as claim 15 or 16 described expandable stomach bands.
18. as the described expandable stomach band of arbitrary claim in the claim 1 to 17, it is characterized in that it is made by Lycoperdon polymorphum Vitt or lacklustre biocompatibility silicone, make it have not dazzling outer surface.
Claims (19)
1. expandable stomach band, it comprises:
The tubular body (2) that ■ prolongs, it is made by flexible material, and described flexible material is strain and define expandable closely chamber (3) at least in part, and has the back side (4) and work surface (5),
■ connecting device (10,11), it is arranged on described tubular body (2) two ends (12,19) and allows the form closure of described stomach band with ring, and described work surface is arranged on the inside of described ring,
■ and inflating catheter (14), it is connected with aerating device (34) and by being provided in the described back side (4) or closely being connected with expandable chamber (3) at the air-filled pore (16) of an end of the tubular body (2) of described prolongation,
It is characterized in that described tubular body (2) is preformed, make when static or before described band closure, it has roughly the longitudinal section of " C " shape.
2. expandable stomach band as claimed in claim 1, it is characterized in that described tubular body (2) when static and the segment angle (a) of extension before described band is closed be 160 ° to 300 °, preferred 250 ° to 280 °.
3. expandable stomach band as claimed in claim 1 or 2, the work surface (5) that it is characterized in that described tubular body (2) when static and the radius of curvature (R) before described band is closed be 22mm to 35mm, preferably 22mm to 30mm, more preferably 22mm to 29mm.
4. as the described expandable stomach band of arbitrary claim in the claim 1 to 3, it is characterized in that the extended length of the work surface (5) of described tubular body (2) is 110mm to 130mm, preferred 112mm to 117mm or 123mm to 127mm.
5. as the described expandable stomach band of arbitrary claim in the claim 1 to 4, it is characterized in that described tubular body (2) has rectangle or oblong cross section in the central area when static and before described band is closed.
6. as the described expandable stomach band of arbitrary claim in the claim 1 to 5, it is characterized in that described connecting device (10,11) comprise the tail pipe (13) that is used to connect described conduit (14) and described inflatable chamber in first end (12) zone that is called as the inflation end of described tubular body on the one hand, and on the other hand, comprising that near the opposite end (19) that is called as front end on the described back side that is provided at described tubular body at least one is used to the arc part (20,21) that union tail is passed through.
7. expandable stomach band as claimed in claim 6, at least a portion (18p) that it is characterized in that described union tail (13) has the arc as the extension of tubular body sweep when static and before described band closure.
8. expandable stomach band as claimed in claim 7 is characterized in that the segment angle (β) of sweep (18p) extension of described union tail (13) is 45 ° to 75 °, preferred 50 ° to 60 °.
9. as claim 7 or 8 described expandable stomach bands, it is characterized in that described union tail (13) comprises the sweep (18p) of near-end and the straight line portion (18d) of far-end, described straight line portion is along the tangential direction of the curve of sweep (18p), as the prolongation of sweep (18p) and extend.
10. as the described expandable stomach band of arbitrary claim in the claim 6 to 9, the edge (42) that it is characterized in that connecting the described tubular body (2) of described inflation end and described union tail has level and smooth serpentine, to define the bonding pad with outstanding corner angle.
11. as the described expandable stomach band of arbitrary claim in the claim 6 to 10, it is characterized in that described union tail (13) has the locking device (22) of at least one fir tree, described locking device (22) comprises two outstanding angles (23) that are roughly " V " shape that are arranged at each side of described union tail (13), described outstanding angle is oriented towards described tubular body (2) and the formation of two main side (21,25) and is less than or equal to 45 ° angle.
12. as claim 9 and 11 described expandable stomach bands, it is characterized in that the locking device that it comprises at least two fir tree, first is called the near-end locking device, its sweep along described union tail near-end extends; Second is called the far-end locking device, and its straight line portion along described union tail far-end extends.
13. as claim 11 or 12 described expandable stomach bands, it is characterized in that zone, its back side in described tubular body (2) (4) comprises the same number of arc part (20 of locking device (22) of the fir tree on a plurality of and described union tail (13), 21), each arc part comprises that two grooves (28) or two connecting plates (27) answer the outstanding angle of " V " shape of locking device with immobile phase.
14. as the described expandable stomach band of arbitrary claim in the claim 6 to 13, it is characterized in that each arc part (20,21) defined the passage that holds described union tail, the inwall of described passage is assembled along the direction away from described tubular body end (19), and be that described union tail is placed in the described part (29 in the described passage, 30) have complementary shape with described passage, described passage is defined by described arc part during in make position when described band.
15. as the described expandable stomach band of arbitrary claim in the claim 1 to 14, it is characterized in that described tubular body (2) and described union tail (13) form the assembly of integral type, described assembly obtains by injection moulding in arcual cavity.
16. as the described expandable stomach band of arbitrary claim in the claim 1 to 15, it is characterized in that it comprise at least one that make by the radiopaque material, be integrated as whole line (41) with the wall of expandable tubular body (2).
17. expandable stomach band as claimed in claim 16, the line (41) that it is characterized in that described radiopaque material are incorporated into the described back side (4) with described tubular body (2) and are combined in whole, the non-stretchable flexible reinforcing band (40).
18., it is characterized in that the line of described radiopaque material comprises gold as claim 16 or 17 described expandable stomach bands.
19. as the described expandable stomach band of arbitrary claim in the claim 1 to 18, it is characterized in that it is made by Lycoperdon polymorphum Vitt or lacklustre biocompatibility silicone, make it have not dazzling outer surface.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0606117A FR2903297B1 (en) | 2006-07-05 | 2006-07-05 | GASTRIC BELT PREFORMED IN "C" |
| FR0606117 | 2006-07-05 | ||
| FR0609494 | 2006-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101484099A true CN101484099A (en) | 2009-07-15 |
Family
ID=37907000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800251845A Pending CN101484099A (en) | 2006-07-05 | 2007-07-05 | Gastric belt preformed in a 'c' shape |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101484099A (en) |
| FR (1) | FR2903297B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2929841B1 (en) * | 2008-04-14 | 2010-03-19 | Cie Euro Etude Rech Paroscopie | IMPLANTABLE SURGICAL RING WITH MONOBLOC HOSE |
| FR2981265B1 (en) | 2011-10-12 | 2015-01-16 | Medical Innovation Dev | INFLATABLE AND ADJUSTABLE GASTRIC BAND RING FOR THE TREATMENT OF OBESITY |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2834631B1 (en) * | 2002-01-15 | 2004-10-22 | Cie Euro Etude Rech Paroscopie | GASTROPLASTY RING IN VARIABLE HARDNESS ELASTOMERIC MATERIAL |
| DE60223535T2 (en) * | 2002-09-04 | 2008-09-18 | Endoart S.A. | Device for closing surgical rings |
| FR2865129B1 (en) * | 2004-01-16 | 2006-05-19 | Medical Innovation Dev | GASTRIC BELT |
| FR2866555B1 (en) * | 2004-02-19 | 2007-02-09 | Cie Euro Etude Rech Paroscopie | ATRAUMATIC SURGICAL RING |
| AU2005272597B2 (en) * | 2004-08-13 | 2011-03-03 | Obalon Therapeutics, Inc. | Intragastric volume-occupying device |
-
2006
- 2006-07-05 FR FR0606117A patent/FR2903297B1/en not_active Expired - Fee Related
-
2007
- 2007-07-05 CN CNA2007800251845A patent/CN101484099A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2903297B1 (en) | 2009-02-27 |
| FR2903297A1 (en) | 2008-01-11 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090715 |