Method of gastrostomy, and an infection preventive cover, or catheter kit, and a gastrostomy catheter
OwnerYutaka Suzukiinventor
Life of this patent
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Abstract
Disclosed is an infection preventive catheter kit for preventing the infection of the wound. A percutaneous endoscopic gastrostomy (PEG) catheter 20 is inserted into an infection preventive cover 10, which is provided with a socket 13 at a distal end thereof. A head portion 15a of a guide wire 15 which is inserted into the PEG catheter 20 through a top end thereof and an in-stomach remaining member 23 provided at a distal end of the PEG catheter 20 are engaged with (fixed to) the socket 13 of the infection preventive cover 10 by a pin 14 penetrating the socket 13.
Claims27
A method of gastrostomy comprising the steps of:
- inserting a guide wire (15) into a stomach through an outer tube pierced through a wall of an abdomen and a wall of the stomach of a patient and pulling the guide wire through an esophagus and an oral cavity into a space outside the patient, and joining a top end of the guide wire with a top end of a percutaneous endoscopic gastrostomy catheter (20) which is entirely enclosed with an infection preventive cover (10) having a long-and-slender flexible tubular sheath (11);
- engaging an in-stomach remaining member (23) of a distal end of the catheter with a distal end portion of the infection preventive cover (10);
- delivering the catheter through the oral cavity into the stomach by pulling or pushing the guide wire with the catheter covered with the infection preventive cover;
- releasing the in-stomach remaining member from the distal end portion of the infection preventive cover (10) in a space outside the oral cavity;
- drawing the catheter into a space outside the patient, by pulling the guide wire into the space outside the patient while drawing the catheter through the top end of the tubular sheath;
- and
- removing thereafter the infection preventive cover from the oral cavity into a space outside the patient.
A method of gastrostomy comprising the steps of:
- inserting a guide wire (15) into a stomach through an outer tube pierced through a wall of an abdomen and a wall of the stomach of a patient and pulling the guide wire through an esophagus and an oral cavity into a space outside the patient, and inserting the guide wire into the inside of a percutaneous endoscopic gastrostomy catheter (20) which is entirely enclosed with an infection preventive cover (10) having a long-and-slender flexible tubular sheath (11) through a top end thereof;
- engaging a top end of the guide wire which appears from a distal end of the catheter with a distal end portion of the infection preventive cover (10);
- engaging an in-stomach remaining member (23) of a distal end of the catheter with a distal end portion of the infection preventive cover (10);
- delivering the catheter through the oral cavity into the stomach by pulling or pushing the guide wire with the catheter covered with the infection preventive cover;
- releasing the top end of the guide wire from the distal end portion of the infection preventive cover (10), and releasing the in-stomach remaining member from the distal end portion of the infection preventive cover (10), in a space outside the oral cavity;
- joining the top end of the guide wire with the top end portion of the catheter, while pulling the guide wire into a space outside the patient;
- drawing the catheter into the space outside the patient by further pulling the guide wire into the space outside the patient, while drawing the catheter through the top end of the tubular sheath;
- and
- removing thereafter the infection preventive cover from the oral cavity into a space outside the patient.
An infection preventive cover (10) comprising a long-and-slender flexible tubular sheath (11) and a first engaging mechanism (13a, 14), the first engaging mechanism engaging an in-stomach remaining member (23) of a distal end of a percutaneous endoscopic gastrostomy catheter (20) which is disposed within the tubular sheath with a distal end portion of the tubular sheath.
A infection preventive cover (10) including a long-and-slender flexible tubular sheath (11), a first engaging mechanism (13a, 14) and a second engaging mechanism (16A, 16B),
- the first engaging mechanism engaging an in-stomach remaining member provided on an end of a percutaneous endoscopic gastrostomy catheter (20) disposed within the tubular sheath with a distal end portion of the tubular sheath, and
- the second engaging mechanism engaging a head portion, hook portion, or ring or loop portion formed on a top end of a guide wire (15) which is inserted into the top of the catheter disposed within the tubular sheath, passes therethrough and appears outside of the catheter at the distal end thereof with the distal end portion of the tubular sheath.
A method of using an infection preventive cover (10) which includes a long-and-slender flexible tubular sheath (11) and a pin (14), and is formed with a pin hole (13a) for inserting the pin in a radial direction at a circumferential wall of the distal end of the tubular sheath, comprising the steps of:
- engaging an in-stomach remaining member (23) provided on a distal end of a percutaneous endoscopic gastrostomy catheter (20) which is disposed inside of the tubular sheath with the pin inserted into the pin hole to fix the in-stomach remaining member to the distal end of the tubular sheath;
- and
- engaging a top end of a guide wire (15) which is inserted into the top end of the catheter, passes therethrough and appears outside of the catheter at the distal end thereof with a slit (16) formed on the pin which is inserted into the pin hole to fix the top end of the guide wire to the distal end portion of the tubular sheath.
An infection preventive catheter kit comprising a infection preventive cover (10) and a percutaneous endoscopic gastrostomy catheter (20),
- the infection preventive cover (10) including a long-and-slender flexible tubular sheath (11), and a first engaging mechanism (13a, 14) for engaging an in-stomach remaining member (23) provided on a distal end of the catheter which is disposed inside of the tubular sheath with the distal end portion of the tubular sheath, and
- the in-stomach remaining member (23) of the catheter having a portion subjected to engagement by the first engaging mechanism.
A pin (14) formed with a wide slit section (16A) allowing a large diameter head (15a) formed at a top end of a guide wire to pass therethrough and a narrow slit section (16B) formed continuous with the wide slit section and preventing the head from passing therethrough.
A percutaneous endoscopic gastrostomy catheter (20) having a tube (21), a conical shaped top portion (22) provided at a top of the tube and an in-stomach remaining member (23) provided at a distal end of the tube, wherein the conical top portion is hollow and has an opening (22a) formed at the top end thereof, the opening has such size that a large diameter head (15a) formed at a top end of a guide wire (15) passes therethrough, the inside diameter of the hollow space in the conical top portion is larger than that of the top opening, the hollow conical top portion is provided with an engaging piece (26A) on the inside thereof, the engaging piece allowing the head of the guide wire which is inserted through the opening to pass therethrough and preventing the head from being pulled out, and center (C1) of the hollow space of the conical top portion (22) is deviate from a center (C2) of an inside space of a portion (26) joined to the tube.
Dependencies are inferred from the claim text.