System and method for external percutaneous connections

Patent metadata

Field	Value
Publication number	US-10155102-B2
Application number	US-201414453052-A
Country	US
Kind code	B2
Filing date	Aug 6, 2014
Priority date	Aug 6, 2013
Publication date	Dec 18, 2018
Grant date	Dec 18, 2018

Abstract

The present invention provides a system and method for creating a percutaneous fluidic connection. In one embodiment, the system includes an endoscope having an end cap with a tube that defines a distal cavity and an internal magnet circumferentially arranged around the distal end of the tube. The internal magnet is delivered into the patient's stomach and pressed against an inner wall of the stomach. An external magnet is placed on an external surface of the patient's skin corresponding to the location of the internal magnet and the inner and external magnets are coupled together. An incision is made through the skin to access the distal cavity, and an overtube containing a PEG device is inserted into the distal cavity. The magnets are decoupled and removed, leaving the overtube in place, which is subsequently retracted from the PEG device, allowing the PEG device to be anchored in place.

First claim

The invention claimed is:

1. A medical system for creating a percutaneous external connection, the medical system comprising:
an end cap configured for being attached to a distal end of an endoscope, the end cap including a barrel and a tube, the tube defining a cavity having a distal opening facing distally and the barrel defining a proximal cavity facing proximally, and the end cap further includes a transverse shelf extending between the proximal cavity and the distal cavity that seals the proximal cavity from the distal cavity, the transverse shelf extending across the end cap and completely closing a proximal end of the distal cavity;
an internal magnet attached to a distal end of the tube, the internal magnet being circumferentially arranged around the distal end of the tube, wherein the tube extends at least partially into an aperture defined by the internal magnet; and
an external magnet configured for mating with the internal magnet, wherein the external magnet defines an aperture, wherein the external magnet is attracted to the internal magnet;
wherein the apertures of the external magnet and the internal magnet are sized to define a passageway from the aperture of the external magnet into the cavity of the tube such that a further medical device may be inserted through the aperture of the external magnet and into the distal cavity of the tube.

2. The system of claim 1 , further comprising a jacket attached circumferentially around the external magnet, wherein the jacket has a height greater than a height of the external magnet, wherein the jacket defines a recess therein sized to receive the internal magnet, wherein the internal magnet surrounds a radially outermost surface of the tube.

3. A medical system for creating a percutaneous external connection, the medical system comprising:
an end cap configured for being attached to a distal end of an endoscope, the end cap including a barrel and a tube, the tube defining a cavity having a distal opening and a proximal end opposite the distal opening;
an internal magnet attached to a distal end of the tube, the internal magnet being circumferentially arranged around the distal end of the tube, wherein the tube extends at least partially into an aperture defined by the internal magnet; and
an external magnet configured for mating with the internal magnet, wherein the external magnet defines an aperture, wherein the external magnet is attracted to the internal magnet;
wherein the cavity of the tube and the apertures of the external magnet and the internal magnet are sized to permit passage of a tubular medical device through the apertures and into the cavity of the tube to be received therein;
wherein the end cap includes a transverse shelf adjacent the cavity of the tube for being disposed against a distal end of an endoscope to seal the distal end of the endoscope, wherein the shelf extends across the end cap and completely closes the proximal end of the cavity.

4. The system of claim 1 , wherein the system includes a tubular medical device housed within an overtube, the tubular medical device has a delivery configuration and a deployed configuration, the medical device is disposed within the overtube in the delivery configuration, and the overtube is retracted in the deployed configuration.

5. The system of claim 4 , wherein the tubular medical device includes an anchor disposed at an internal end thereof.

6. The system of claim 4 , wherein the overtube includes an upper portion and lower portion removably coupled together, and the lower portion includes a tapered portion, wherein the lower portion includes a locking channel disposed on an outer surface thereof, and wherein the tube of the end cap includes a peg extending into the cavity of the tube, and the peg is sized to be received in the locking channel to retain the lower portion of the overtube within the cavity.

7. The medical system of claim 1 further comprising an elongate endoscope having a distal end, wherein the end cap is attached to the distal end of the endoscope, and the distal end of the endoscope is received within the proximal cavity of the barrel and is disposed against the transverse shelf.

Assignees

• Cook Medical Technologies Llc

Inventors

• Bates Gregory
• Brown Hilbert
• Niebel Casandra
• Raghunathan Smitha
• Soetermans Maximiliano

Classifications

• A61B1/00137

  End pieces at either end of the endoscope, e.g. caps, seals or forceps plugs · CPC title

• A61B17/3415 Primary

  for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters (A61B17/3417 takes precedence; body piercing catheter guide needles A61M25/06) · CPC title

• A61M2039/027

  having a particular valve, seal or septum · CPC title

• A61J15/0015

  Gastrostomy feeding-tubes (insertion tools or methods A61B17/34) · CPC title

• A61M2039/0291

  method or device for implanting it in the body · CPC title