Source: http://www.google.de/patents/US7862546
Timestamp: 2013-12-08 22:44:06
Document Index: 549664639

Matched Legal Cases: ['Application No. 06253284', 'Application No. 06253285', 'Application No. 04253581', 'Application No. 06253276', 'Application No. 06253284', 'Application No. 06253276', 'Application No. 05253363', 'Application No. 04253581', 'Application No. 05253363', 'Application No. 05253363', 'Application No. 04253581', 'Application No. 05253363', 'Application No. 04253581']

Patent US7862546 - Subcutaneous self attaching injection port with integral moveable retention ... - Google PatenteSuche Bilder Maps Play YouTube News Gmail Drive Mehr » Erweiterte Patentsuche | Anmelden Erweiterte Patentsuche PatenteA self attaching injection port has integral moveable fasteners which are moveable from a undeployed state to a deployed state engaging tissue. The fasteners may be disposed radially or tangentially, and rotated to pierce the fascia. The fasteners may be rigid or elastically deformable....http://www.google.de/patents/US7862546?utm_source=gb-gplus-sharePatent US7862546 - Subcutaneous self attaching injection port with integral moveable retention members Ver�ffentlichungsnummerUS7862546 B2PublikationstypErteilung AnmeldenummerUS 10/741,875 Ver�ffentlichungsdatum4. Jan. 2011Eingetragen19. Dez. 2003 Priorit�tsdatum16. Juni 2003Auch ver�ffentlicht unterCA2471185A1, CA2471185C, CN1600281A, CN100418495C, EP1488824A1, EP2332609A1, US20040254537, US20100130941, US20110082426 Ver�ffentlichungsnummer10741875, 741875, US 7862546 B2, US 7862546B2, US-B2-7862546, US7862546 B2, US7862546B2 ErfinderRandal T. Byrum, Sean P. Conlon, John V. Hunt, Richard P. Nuchols, Dale R. SchulzeUrspr�nglich Bevollm�chtigterEthicon Endo-Surgery, Inc.Patentzitate (114), Nichtpatentzitate (23), Referenziert von (3), Klassifizierungen (12), Juristische Ereignisse (1) Externe Links: USPTO, USPTO-Zuordnung, EspacenetSubcutaneous self attaching injection port with integral moveable retention membersUS 7862546 B2 Zusammenfassung A self attaching injection port has integral moveable fasteners which are moveable from a undeployed state to a deployed state engaging tissue. The fasteners may be disposed radially or tangentially, and rotated to pierce the fascia. The fasteners may be rigid or elastically deformable.
Bilder(23) Anspr�che(27)
27. A method as recited in claim 25, wherein the at least one retention members comprises two or more retention members integrally attached to the housing, and the step of attaching the injection port comprises moving at least two of the two or more retention members concurrently. Beschreibung
RELATED APPLICATIONS This application claims the priority of provisional patent application Ser. No. 60/478,763, titled Fluid Injection Port For Adjustable Gastric Band, filed on Jun. 16, 2003, the disclosure of which is incorporated herein by reference. This application also incorporates by reference the following co-pending U.S. patent applications filed of even date herewith: application Ser. No. 10/741,127 (Subcutaneous Injection Port For Applied Fasteners, investors: Conlon and Hunt); and application Ser. No. 10/741,868 (Subcutaneous Self Attaching Injection Port With Integral Fasteners, inventors: Conlon and Kolata).
TECHNICAL FIELD The present invention relates in general to surgically implantable fluid injection ports, and is particularly directed to fasteners and methods for fastening subcutaneous peripherally attached ports. The invention will be specifically disclosed in connection with injection ports used with adjustable gastric bands, although the fasteners of the present invention may be used with many different subcutaneously attached devices, including injection ports used for vascular access such as the infusion of medications and blood draws.
BACKGROUND OF THE INVENTION Injection ports are placed beneath the skin of a body for injecting fluids into the body, such as for infusing medication, blood draws, and many other applications, including adjustable gastric bands. Since the early 1980s, adjustable gastric bands have provided an effective alternative to gastric bypass and other irreversible surgical weight loss treatments for the morbidly obese. The gastric band is wrapped around an upper portion of the patient's stomach, forming a stoma that restricts food passing from an upper portion to a lower portion of the stomach. When the stoma is of the appropriate size, food held in the upper portion of the stomach provides a feeling of fullness that discourages overeating. However, initial maladjustment or a change in the stomach over time may lead to a stoma of an inappropriate size, warranting an adjustment of the gastric band. Otherwise, the patient may suffer vomiting attacks and discomfort when the stoma is too small to reasonably pass food. At the other extreme, the stoma may be too large and thus fail to slow food moving from the upper portion of the stomach, defeating the purpose altogether for the gastric hand.
BRIEF SUMMARY OF THE INVENTION As described herein, there is provided an injection port for injecting fluids into a body. The port includes a housing for placement beneath the skin of the body and means for receiving a needle. At least one retention member is integrally attached to the housing which is moveable with respect thereto. The retention member has an undeployed state when disposed in a first position relative to the housing and a deployed state engaging tissue adjacent the housing when disposed in a second position relative to the housing.
DETAILED DESCRIPTION OF AN EMBODIMENT OF THE PRESENT INVENTION Referring now to the drawings in detail, wherein like numerals indicate the same elements throughout the views, FIG. 1, adjustable gastric band 10 is shown wrapped around an upper portion of stomach 12, kept in place by attaching the two ends together and extending portion 14 of the stomach 12 over adjustable gastric band 10 by suturing portion 14 to the stomach. One end of flexible conduit 16 is in fluid communication with the internal cavity of the balloon (not shown), with the other end being in fluid communication with an internal cavity of injection port 18. At the time adjustable gastric band 10 is implanted around a portion of the stomach, remote injection port 18 is also implanted at a suitable location, usually within the rectus sheaths, for transcutaneous access via a Huber needle.
FIG. 13 is a cross sectional view of the injection port attachment assembly taken along line 13-13 of FIG. 12. At this position, end 70 has rotated rotatable retention members/fasteners 30 about 90� from their retracted position in an undeployed state, by initially contacting fasteners 30 at their uppermost point in the retracted position. This creates a moment about pin 32, rotating fasteners 30, and transmitting sufficient force thereto to pierce the fascia layer. Full rotation of fasteners 30 into the deployed state is shown in FIG. 13, although at this position end 70 has not bottomed against the upper surface of flange 22.
As depicted, in the undeformed deployed state, each fastener 138 is a single coil, forming a hook shape, with distal end 138 b disposed touching or otherwise adjacent the side of housing 140 of injection port 136. It is noted that the relative positions of the side of housing 140 and distal ends 138 b may leave fasteners 138 in a somewhat deformed state with some stress and strain. Fasteners 138, also referred to as radial elements, are flexible, being made of any suitable material. Material having super elastic properties, such as a nickel titanium alloy, for example Nitinol� wire.
Fasteners 138 may be of any suitable dimensions. In one example, Nitinol� wire having a diameter in the range of 0.020-0.080 mm, coiled to a diameter of about 4-8 mm was used.
It is contemplated, but not required, that applier 142 will be provided to the surgeon with injection port 136 premounted inside of tube 144 as a sterilized assembly. Implantation of self attaching injection port 136 is accomplished by urging end 146 a against fascia layer 150 to depress the tissue surface slightly thereby upraising the tissue so that fasteners 138 may go through it the surgeon then pushers plunger 144 to deploy fasteners 138, and withdraws tube 146. Sharp lips 138 b penetrate through and curl back out of fascia layer 150, and stop against the side of housing 140 to protect tips 138 b. In the deployed state, fasteners 138 are in a �relaxed� configuration, having less deformation, and therefore less stress strain, than in the pre-attachment, deformed state.
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Mai 2004ASAssignmentOwner name: ETHICON ENDO-SURGERY, INC., OHIOFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CONLON, SEAN P.;BYRUM, RANDAL T.;HUNT, JOHN V.;AND OTHERS;REEL/FRAME:014629/0889;SIGNING DATES FROM 20030504 TO 20040503Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CONLON, SEAN P.;BYRUM, RANDAL T.;HUNT, JOHN V.;AND OTHERS;SIGNING DATES FROM 20030504 TO 20040503;REEL/FRAME:014629/0889DrehenOriginalbildGoogle-Startseite - Sitemap - USPTO-Bulk-Downloads - Datenschutzerkl�rung - Nutzungsbedingungen - �ber Google Patente - Feedback gebenDaten bereitgestellt von IFI CLAIMS Patent Services.© 2012 Google