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EP-3773367-B1 - LID

EP3773367B1EP 3773367 B1EP3773367 B1EP 3773367B1EP-3773367-B1

Inventors

  • BRÖNNIMANN, Benedict
  • CARDELL, Mats Erik Kindahl
  • ELWING, ERIK
  • APELSTEDT, Kristoffer
  • ABRAHAMSSON, DANIEL

Dates

Publication Date
20260506
Application Date
20190405

Claims (10)

  1. A lid (10) for an ostomy implant (1), the lid (10) comprising: • a base (13) comprising attachment means for attachment to the ostomy implant (1); and • an opening part (11); and • an operating means (12) comprising a sliding part; characterized in that the sliding part is arranged such that when the sliding part is slid along a first sliding route it causes the lid (10) to be attachable to or detachable from the ostomy implant (1), and when the sliding part is slid along a second sliding route, it causes the opening part (11) to open or close.
  2. A lid (10) as claimed in claim 1, wherein the lid (10) comprises a sealing surface (38, 38', 38") arranged to form a sealing engagement between the opening part (11) and the ostomy implant (1), while the lid (10) is attached to the ostomy implant (1) and the opening part (11) is in closed position.
  3. A lid (10) as claimed in claim 2 wherein the sealing surface (38, 38', 38") is ring-shaped so as to provide a seal around the circumference of the ostomy implant (1).
  4. A lid (10) as claimed in any one of the preceding claims, wherein the operating means (12) is operable to: • apply a force on the lid (10), such as on the base (13), so as to allow the lid (10) to be attached and/or detached from the ostomy implant (1), such as by enlarging an opening (15) configured to receive the ostomy implant (1); and/or • apply a force on the opening part (11) so as to open or close the opening part (11), and/or to keep the opening part (11) open or closed.
  5. A lid (10) as claimed in any one of the preceding claims, wherein the operating means(12) comprises a surface or protrusion arranged such that when the operating means (12) is operated in the first way, said surface or protrusion exerts a force on another part of the lid (10) so as to change the lid (10) into a configuration in which the lid (10) is attachable to or detachable from the ostomy implant (1).
  6. A lid (10) as claimed in any one of the preceding claims, wherein the opening part (11) is movably connected to the base (13) and wherein the base (13) comprises at least one stretchable part (13b), and wherein the base (13) can be stretched from a relaxed configuration in which it cannot fit over the ostomy implant (1), to a stressed configuration in which it can fit over the ostomy implant (1).
  7. A lid (10) as claimed in claim 6, wherein the lid (10), such as the base (13), comprises an opening (15) which can be closed by the opening part (11), and wherein stretching the lid (10) from the relaxed configuration to the stressed configuration comprise enlarging the opening (15) such that the lid (10) can fit over the ostomy implant (1).
  8. A lid (10) as claimed in any one of the preceding claims, wherein the base (13) is stretched in response to radially moving the sliding part with respect to the lid (10).
  9. A lid (10) as claimed in any one of the preceding claims, further comprising connection means (14) such that a further device may be attached to the lid (10), such as wherein the connection means (14) comprises one or more raised or lowered parts, a ridge and/or a groove.
  10. A kit comprising a lid (10) as claimed in any one of the preceding claims and one or more connectors (50, 60, 70, 80) for connection to the lid (10), the connector (50, 60, 70, 80) comprising attachment means for attachment to the lid, and connecting means or a connection surface for connection to a further device.

Description

The present invention relates to a lid. In particular, it relates to a lid for a medical implant, more particularly for an ostomy implant. The invention also relates to a connector for a lid for an ostomy implant or for an ostomy implant. Ileostomy and colostomy are common operations which may be necessitated, for example, by malignancy or chronic bowel inflammation. The surgery is called an ileostomy if the colon and rectum are removed and a colostomy if the rectum alone is removed. Similarly an abdominal urostomy is created when the urinary bladder has to be removed due to, for example, bladder cancer. In these operations, a stoma is formed in the abdominal wall to which a bowel segment is connected. Ostomy is a generic term for any such procedure where a stoma is created. The stoma, in most cases, is connected to a bag for the collection of bodily waste. However, instead of a conventional ileostomy, it is possible to make a reservoir known as a "Kock's pouch" from the distal part of the ileum. The pouch is formed in such a way that a nipple valve is created which serves to close the reservoir, whilst allowing it to be drained intermittently by means of a catheter. This is an example of a so-called continent ileostomy (CI) and it was formerly an attractive alternative to conventional ileostomy but is now rarely used. The complexity of the procedure and the high potential for complications - most of them related to dysfunction of the continence nipple valve - has deterred many surgeons from adopting the operation today. The ileopouch anal anastomosis (IPAA) is today the gold standard worldwide for these patients but, as with a Cl, this operation is also risky and failures are common, mostly leading to pouch excision with loss of bowel. Conversion of a failed IPAA to a Cl would be a preferable option but, again, surgeons are reluctant to perform this complex and unreliable technique. Likewise, conversion of a malfunctional orthotopic neobladder or Bricker urostomy would be desirable. It is known to provide an implant to facilitate connection of a stoma to a lid or bag, for example. For example, and as illustrated in Figs. 1 and 2, the applicant's earlier application WO 2014/140344 A1 discloses a percutaneous ostomy implant 1 comprising a tubular interior section 2, which is formed mainly of mesh, and a circular, radially-extending anchoring flange or dermal anchor 3. The implant 1 is designed to be implanted through the abdominal wall of a patient and to receive a bowel section drawn through it. Serosal tissue from the bowel section can then grow into the implant 1, through the mesh, and attach or grow into surrounding dermal tissue. This can provide a secure, stable, leak-proof and well-vascularised tissue-implant junction. The tubular interior section 2 is attached to an exterior section 4, which, when the implant 1 is implanted in a patient, protrudes from the patient's body. A groove 6 around the exterior circumference of the exterior section 4 allows a lid, bag or other device (not shown) to be attached to the implant 1. Once an implant has been implanted into a patient, it is necessary to close it in some way, or to sealingly connect it to some form of evacuation means (e.g. a bag, sleeve or catheter), to prevent leakage of waste from the stoma, and to allow waste to be collected and/or disposed of cleanly. This means that usually some form of lid or bag needs to be attached to the external end of the implant. The applicant's earlier application WO 2006/046210 A1 discloses a detachable lid for an implant with mounting means (e.g. a groove or ridge) arranged such that the detachable lid can be mounted onto and removed from an external end of the implant by sliding the lid in a direction perpendicular to the longitudinal axis of the implant. However, a problem with this method of mounting a lid on an implant is that it may cause forces to be exerted on the implant which can damage the tissue-implant junction. It can also be difficult for a patient to mount a lid in this way. A further problem is that with this sliding method of attachment, it may be difficult for the lid to seal properly, i.e. in a leak-tight way, with the implant. WO 2006/046210 A1 also discloses a connecter for connecting an ostomy bag to the implant. The connector is arranged to slide the lid off of the implant and to connect the bag to the implant. In the applicant's later application WO 2011/039517 A1, a medical closure device is disclosed comprising a coupling part and a closure part (e.g. a lid or cap). The coupling part can be attached to a medical device such as an implant and the closure part can then be attached to the coupling part to close the implant. The coupling part is a circumferential flexible member delimiting a coupling opening, and is configurable between a relaxed configuration where the coupling opening cannot pass over the medical device and a stressed configuration where the coupling opening of the coupling par