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Systems and methods for coupling and decoupling a catheter

A technology of decoupling and catheter body, applied in the field of systems and methods for coupling and decoupling catheters, capable of solving problems such as not being ideal

Active Publication Date: 2017-05-24
MERIT MEDICAL SYST INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two-step method and apparatus used may not be ideal in many situations

Method used

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  • Systems and methods for coupling and decoupling a catheter
  • Systems and methods for coupling and decoupling a catheter
  • Systems and methods for coupling and decoupling a catheter

Examples

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Embodiment Construction

[0083] figure 1 One perspective of an example configuration of convertible renal ureteral catheter 100 is provided. figure 2 The coupling regions of the proximal member (catheter) 110 and the distal member (stent) 120 are depicted in detail, showing two example configurations. The release mechanism shown in the figures may comprise two elongated members - suture 130 and puller wire 140 . Such as figure 2 As shown in , suture 130 may exit through the wall of proximal member 110 and then enter distal member 120 , thereby holding proximal member 110 and distal member 120 together across junction 150 . Pull wire 150 can prevent suture 140 from being pulled out until pull wire (lock wire) 150 is removed or retracted proximally. The distal portion of suture 140 may form a loop through which the distal portion of pull wire 150 may be threaded. Additionally, an inner member 160 may be included to span the junction 150 inboard to keep the junction aligned (concentric) and to fac...

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Abstract

A convertible nephroureteral catheter is used in the treatment of urinary system complications, particularly on the need for a single surgically delivered device to treat patients who must be seen by an interventional radiologist (IR). In many current procedures, patients need to return to the operating room to remove a previously delivered nephroureteral catheter to exchange this catheter with a fully implanted ureteral stent delivered though the same access site at the flank. The present convertible nephroureteral catheter reduces the need to return for a second surgical procedure. Two weeks after initial implantation, the proximal portion of the convertible nephroureteral catheter extending out from the body may simply be removed. A simple action at the catheter hub allows this proximal portion to be removed, leaving behind the implanted ureteral stent within the patient's urinary system. Other medical procedures, devices, and technologies may benefit from the described convertible catheter.

Description

[0001] cross reference [0002] This application claims the benefit of US Provisional Application No. 62 / 036,377, filed August 12, 2014, which is hereby incorporated by reference. [0003] The subject matter of this application is related to that of U.S. Patent Application No. 12 / 559,946, filed September 15, 2009 and now assigned U.S. Patent No. 8,657,884, and U.S. Patent Application No. 14 / 159,221, filed January 20, 2014, which are adopted by incorporated herein by reference. Background technique [0004] A ureteral stent is a medical device used within a patient population suffering from one or more complications associated with the urinary system, including the kidneys, ureters, and bladder. A range of complications can affect urine flow and how these organs handle this function; these complications range from decreased urine flow to swelling of the kidneys or bladder, and many of these conditions are adversely affected by the formation of kidney stones. To relieve urina...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/06
CPCA61F2002/047A61F2002/9665A61F2230/0041A61F2002/9511A61F2/9517A61F2/95A61M27/008A61F2/94A61F2/966A61F2002/9505
Inventor 哈利·R·斯茂赛肯特·C·斯托克蒂莫西·H·威廉姆斯
Owner MERIT MEDICAL SYST INC
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