Ureteral and bladder catheters and methods of inducing negative pressure to increase renal perfusion
First Claim
1. A ureteral catheter, comprising:
- a drainage lumen comprising a distal portion configured to be positioned in a patient'"'"'s kidney, renal pelvis and/or in the ureter adjacent to the renal pelvis for receiving fluid from a patient'"'"'s kidney and a proximal portion for draining the fluid from the distal portion, the distal portion comprising a coiled retention portion, the coiled retention portion comprising;
at least a first coil having a first diameter;
at least a second coil having a second diameter, the first diameter being less than the second diameter, the second coil being closer to an end of the distal portion of the drainage lumen than the first coil; and
one or more perforations on a sidewall of the coiled retention portion of the distal portion of the drainage lumen for permitting fluid flow into the drainage lumen,wherein the proximal portion of the drainage lumen is essentially free of or free of perforations.
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Accused Products
Abstract
Ureteral catheters are provided including a drainage lumen including a distal portion configured to be positioned in a patient'"'"'s kidney, renal pelvis and/or in the ureter adjacent to the renal pelvis for receiving fluid from a patient'"'"'s kidney and a proximal portion for draining the fluid from the distal portion, the distal portion including a coiled retention portion including: at least a first coil having a first diameter; at least a second coil having a second diameter, the first diameter being less than the second diameter, the second coil being closer to an end of the distal portion of the drainage lumen than the first coil; and one or more perforations on a sidewall of the coiled retention portion of the distal portion of the drainage lumen for permitting fluid flow into the drainage lumen, wherein the proximal portion of the drainage lumen is essentially free of or free of perforations.
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Citations
51 Claims
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1. A ureteral catheter, comprising:
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a drainage lumen comprising a distal portion configured to be positioned in a patient'"'"'s kidney, renal pelvis and/or in the ureter adjacent to the renal pelvis for receiving fluid from a patient'"'"'s kidney and a proximal portion for draining the fluid from the distal portion, the distal portion comprising a coiled retention portion, the coiled retention portion comprising; at least a first coil having a first diameter; at least a second coil having a second diameter, the first diameter being less than the second diameter, the second coil being closer to an end of the distal portion of the drainage lumen than the first coil; and one or more perforations on a sidewall of the coiled retention portion of the distal portion of the drainage lumen for permitting fluid flow into the drainage lumen, wherein the proximal portion of the drainage lumen is essentially free of or free of perforations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A ureteral catheter, comprising:
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a drainage lumen comprising a distal portion configured to be positioned in a patient'"'"'s kidney, renal pelvis and/or in the ureter adjacent to the renal pelvis for receiving fluid from a patient'"'"'s kidney and a proximal portion for draining the fluid from the distal portion, the distal portion comprising a coiled retention portion, the coiled retention portion comprising; at least a first coil having a first diameter; at least a second coil having a second diameter, the first diameter being less than the second diameter, the second coil being closer to an end of the distal portion of the drainage lumen than the first coil; and one or more perforations on a sidewall of the coiled retention portion of the drainage lumen for permitting fluid flow into the drainage lumen, wherein the sidewall comprises a radially inwardly facing side and a radially outwardly facing side, and wherein a total surface area of perforations on the radially inwardly facing side is greater than a total surface area of perforations on the radially outwardly facing side. - View Dependent Claims (45, 46, 47, 48)
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49. A ureteral catheter, comprising:
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a drainage lumen comprising a distal portion configured to be positioned in a patient'"'"'s kidney, renal pelvis and/or in the ureter adjacent to the renal pelvis for receiving fluid from a patient'"'"'s kidney and a proximal portion for draining the fluid from the distal portion, the distal portion comprising a coiled retention portion, the coiled retention portion comprising; at least a first coil having a first diameter; at least a second coil having a second diameter, the first diameter being less than the second diameter, the second coil being closer to an end of the distal portion of the drainage lumen than the first coil, at least a third coil, the third coil having a diameter greater than or equal to either the first coil diameter or the second coil diameter, the third coil being closer to an end of the distal portion of the drainage lumen than the second coil, one or more perforations on a sidewall of the coiled retention portion of the drainage lumen for permitting fluid flow into the drainage lumen and wherein the proximal portion of the drainage lumen is essentially free of or free of perforations. - View Dependent Claims (50, 51)
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Specification