Medical procedure using catheter system having removability feature

• US 20020091362A1
• Filed: 12/04/2001
• Published: 07/11/2002
• Est. Priority Date: 01/06/1998
• Status: Abandoned Application

• Current Assignee: Maginot Catheter Technologies, Inc.
• Original Assignee: Maginot Catheter Technologies, Inc.
• Inventors: Maginot, Thomas J., Maginot, Paul J.
• Application Number:
  US10/005,277
• Publication Number:
  US 20020091362A1
• Time in Patent Office: Days
• US Class Current: 604/264
• CPC Class Codes: A61M 1/16 with membranes
• CPC Class Codes: A61M 2025/0031 characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment
• CPC Class Codes: A61M 2025/0037 characterized by lumina being arranged side-by-side
• CPC Class Codes: A61M 2039/0264 with multiple inlets or multiple outlets
• CPC Class Codes: A61M 2039/0273 for introducing catheters into the body
• CPC Class Codes: A61M 2039/0288 protectors, caps or covers therefor
• CPC Class Codes: A61M 25/0028 characterized by features relating to at least one lumen located at the proximal part of the catheter, e.g. alterations in lumen shape or valves catheter hubs A61M25/0097
• CPC Class Codes: A61M 25/0029 characterized by features relating to least one lumen located at the middle part of the catheter, e.g. slots, flaps, valves, cuffs, apertures, notches, grooves or rapid exchange ports catheter shaft surface irregularities A61M2025/006
• CPC Class Codes: A61M 25/0043 characterised by structural features
• CPC Class Codes: A61M 39/0247 Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053

Abstract

A method of using a catheter system to perform medical procedures is disclosed in which the catheter system includes a guide catheter configured to receive inner catheters therein. The method includes performing initial medical procedures with the catheter system until an original inner catheter located within the guide catheter becomes dysfunctional, wherein (i) the initial medical procedures performed during the initial medical procedures performing step are respectively separated in time by interim time periods, and (ii) the original inner catheter is retained within the guide catheter during the interim time periods. The method further includes performing subsequent medical procedures after the initial medical procedures performing step with the catheter system having any one of a number of replacement inner catheters located with the guide catheter, wherein the any one of the number of replacement inner catheter is removed from the guide catheter after each of the subsequent medical procedures is performed during the subsequent medical procedures performing step.

Claims

1. A method of using a catheter system to perform medical procedures, said catheter system including a guide catheter configured to receive inner catheters therein, comprising the steps of:

(a) performing initial medical procedures with said catheter system until an original inner catheter located within said guide catheter becomes dysfunctional, wherein (i) said initial medical procedures performed during step (a) are respectively separated in time by interim time periods, and (ii) said original inner catheter is retained within said guide catheter during said interim time periods; and

(b) performing a subsequent medical procedure with said catheter system after step (a), wherein a replacement inner catheter is located in said guide catheter during step (b); and

(c) removing said replacement inner catheter from said guide catheter after step (b).

2. The method of claim 1, further comprising the step of placing a cap on a proximal end of said guide catheter after step (c).

3. The method of claim 1, further comprising the step of placing a mandrel assembly within said guide catheter after step (c).

4. The method of claim 1, wherein the medical procedure is selected from the following group:

a hemodialysis procedure, a peritoneal dialysis procedure, a plasmapheresis procedure, a TPN administration procedure, a blood transfusion procedure, and a blood sampling procedure.

5. A method of using a catheter system to perform medical procedures, said catheter system including a guide catheter configured to receive inner catheters therein, comprising the steps of:

(a) performing initial medical procedures with said catheter system until an original inner catheter located within said guide catheter becomes dysfunctional, wherein (i) said initial medical procedures performed during step (a) are respectively separated in time by interim time periods, and (ii) said original inner catheter is retained within said guide catheter during said interim time periods; and

(b) performing subsequent medical procedures after step (a) with said catheter system having any one of a number of replacement inner catheters located with said guide catheter, wherein said any one of said number of replacement inner catheter is removed from said guide catheter after each of said subsequent medical procedures is performed during step (b).

6. The method of claim 5, wherein the medical procedure is selected from the following group:

a hemodialysis procedure, a peritoneal dialysis procedure, a plasmapheresis procedure, a TPN administration procedure, a blood transfusion procedure, and a blood sampling procedure.

7. A method of using a catheter system to perform medical procedures, said catheter system including a guide catheter configured to receive inner catheters therein, comprising the steps of:

(a) performing initial medical procedures with said catheter system until an original inner catheter located within said guide catheter becomes dysfunctional, wherein (i) said initial medical procedures performed during step (a) are respectively separated in time by initial interim time periods, and (ii) said original inner catheter is retained within said guide catheter during said initial interim time periods; and

(b) performing a first subsequent medical procedure with said catheter system after step (a), wherein a first replacement inner catheter is located in said guide catheter during step (b);

(c) removing said first replacement inner catheter from said guide catheter after completion of said first subsequent medical procedure;

(d) advancing a second replacement inner catheter into said guide catheter after step (c); and

(e) performing a second subsequent medical procedure with said catheter system after step (d), wherein said second replacement inner catheter is located in said guide catheter during step (e).

8. The method of claim 7, wherein said first replacement catheter is not located within said guide catheter during a first subsequent interim time period which exists between steps (c) and (d).

9. The method of claim 7, further comprising the step of placing a cap on a proximal end of said guide catheter after step (c).

10. The method of claim 9, wherein:

wherein a first subsequent interim time period exists between steps (c) and (d), and

said cap is retained on said proximal end of said guide catheter during said first subsequent time interim period.

11. The method of claim 7, further comprising the step of placing a mandrel assembly within said guide catheter after step (c).

12. The method of claim 11, wherein:

wherein a first subsequent interim time period exists between steps (c) and (d), and

said mandrel assembly is retained within said guide catheter during said first subsequent time interim period.

13. The method of claim 7, wherein the medical procedure is selected from the following group:

a hemodialysis procedure, a peritoneal dialysis procedure, a plasmapheresis procedure, a TPN administration procedure, a blood transfusion procedure, and a blood sampling procedure.

14. The method of claim 7, further comprising the step of disrupting occlusive material formed on a distal end portion of said guide catheter between steps (a) and (b).

15. The method of claim 14, wherein said disrupting step is performed with an instrument selected from the following group:

a pig-tailed catheter and a balloon catheter.

16. The method of claim 7, wherein:

said original inner catheter possesses a first length,

said first replacement inner catheter possesses a second length, and

said second length is greater than said first length.