EP0113520A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Nephroscopy cannula
Assignee: Cook Urological Inc
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Filing: 1983-11-23
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Granted: —
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Expires: 2003-11-23
Abstract
Abstract A nephroscopy cannula apparatus including a cannula having a cylindrical body and defining a central passageway extending between first and second ends of the cannula, a side port portion defining a second passageway extending from the first passageway and to the end of the side port, an apertured disk within which the cannula is received and secured to maintain the cannula in position extending from outside of the body to the interior of the kidney, the disk being sutured to the body for securement purposes, and a septum received over the exposed end of the cannula for at least partially closing that end of the cannula.
Inventors
- 👤 Alvin B. Rutner
- 👤 Frederick D. Roemer
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 01:27
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/0247; A61B; A61B17/00; A61B17/34; A61B17/3415; A61B17/3462; A61M2039/0264; A61M2039/027; A61M2039/0279
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
250 words
A nephroscopy cannula apparatus for providing a percutaneous access tract to the interior of the kidney for repeated insertion and withdrawal of various instruments therethrough, said apparatus comprising: a cannula including a cylindrical portion having a first, central passageway extending from a first end of said cannula to a second end of said cannula, the central passageway of the cylindrical portion having a size sufficient for the reception therein of at least one of the instruments selected from the group consisting of a cystoscope, nephroscope, endoscope, resectoscope, choledocoscope, panendoscope and nephrocholedocoscope, said cannula further including a side port portion adjacent the second end of the cylindrical portion and including a third end separate from the ends of the , cylindrical portion, the side port portion defining a second passageway extending from the first passageway to the third end; the cylindrical portion of said cannula including an insertion portion adjacent the first end which is sized for extending from the renal pelvis of the kidney of the body to the exterior of the body, the cylindrical portion of said cannula further including a non-insertion portion having an outer diameter substantially greater than the outer diameter of the insertion portion of the cylindrical portion; means for temporarily securing said cannula in position with the insertion portion of the cylindrical portion being received extending from the renal pelvis of the kidney to the exterior of a body; and means for selectively closing at least a portion of the second end of said cannula.
Claim 2
Dependent Claim
250 words
A nephroscopy cannula apparatus for providing a percutaneous access tract to the interior of the kidney for repeated insertion and withdrawal of various instruments therethrough, said apparatus comprising: a cannula including a cylindrical portion having a first, central passageway extending from a first end of said cannula to a second end of said cannula, the central passageway of the cylindrical portion having a size sufficient for the reception therein of at least one of the instruments selected from the group consisting of a cystoscope, nephroscope, endoscope, resectoscope, choledocoscope, panendoscope and nephrocholedocoscope, said cannula further including a side port portion adjacent the second end of the cylindrical portion and including a third end separate from the ends of the , cylindrical portion, the side port portion defining a second passageway extending from the first passageway to the third end; the cylindrical portion of said cannula including an insertion portion adjacent the first end which is sized for extending from the renal pelvis of the kidney of the body to the exterior of the body, the cylindrical portion of said cannula further including a non-insertion portion having an outer diameter substantially greater than the outer diameter of the insertion portion of the cylindrical portion; means for temporarily securing said cannula in position with the insertion portion of the cylindrical portion being received extending from the renal pelvis of the kidney to the exterior of a body; and means for selectively closing at least a portion of the second end of said cannula.
Claim 3
Dependent Claim
22 words
The apparatus of claim 1 in which the central passageway has a diameter of from about 6 mm. to about 10 mm.
Claim 4
Dependent Claim
26 words
The apparatus of claim 2 in which the cylindrical portion of said cannula has an outside diameter of from about 7 mm. to about 12 mm.
Claim 5
Dependent Claim
30 words
The apparatus of claim 1 in which said means. for closing the second end of the cylindrical portion comprises a septum receivable over the second end of the cylindrical portion.
Claim 6
Dependent Claim
76 words
The apparatus of claim 4 in which the cylindrical portion of said cannula includes a pair of circumferential grooves adjacent the second end, said closing means including a circular septum integrally attached to a ring, the ring being received within the circumferential groove farthest from the second end of the cannula, the septum including a circumferential, inwardly-directed flange received within the other of the circumferential grooves and the septum being attached to the cylindrical portion thereby.
Claim 7
Dependent Claim
38 words
The apparatus of claim 1 in which said means for securing said cannula comprises a means for securing said cannula to the skin of the body adjacent the point of insertion of the cylindrical portion of said cannula.
Claim 8
Dependent Claim
52 words
The apparatus of claim 6 in which said securing means comprises a disc and further includes first attachment means for attaching the disc to said cannula and second attachment means for attaching the disc to the skin of the body adjacent the point of insertion of the cylindrical portion of said cannula.
Claim 9
Dependent Claim
30 words
The apparatus of claim 6 in which said means for closing the second end of the cylindrical portion comprises a septum receivable over the second end of the cylindrical portion.
Claim 10
Dependent Claim
76 words
The apparatus of claim 8 in which the cylindrical portion of said cannula includes a pair of circumferential grooves adjacent the second end, said closing means including a circular septum integrally attached to a ring, the ring being received within the circumferential groove farthest from the second end of the cannula, the septum including a circumferential, inwardly-directed flange received within the other of the circumferential grooves and the septum being attached to the cylindrical portion thereby.
Claim 11
Dependent Claim
19 words
The apparatus of claim 8 in which the side port portion of said cannula includes an internally threaded portion.
Claim 12
Dependent Claim
223 words
A nephroscopy cannula apparatus for providing a percutaneous access tract to the interior of the kidney for repeated insertion and withdrawal of various instruments therethrough, said apparatus consisting essentially of: a cannula including a cylindrical portion having a first, central passageway extending from a first end of said cannula to a second end of said cannula, said cannula further including a side port portion adjacent the second end of the cylindrical portion and including a third end separate from the ends of the cylindrical portion, the side port portion defining a second passageway extending from the first passageway to the third end, the cylindrical portion of said cannula including an insertion portion adjacent the first end which is sized and for extending from the renal pelvis of the kidney of a body to the exterior of the body, the central passageway of the cylindrical portion having a size sufficient for the reception therein of at least one of the instruments selected from the group consisting of a cystoscope, nephroscope, endoscope, resectoscope, choledocoscope, panendoscope and nephrocholedocoscope; means for temporarily securing said cannula in position with the insertion portion of the cylindrical portion being received extending from the renal pelvis of the kidney to the exterior of a body; and means for selectively closing at least a portion of the second end of said cannula.
Claim 13
Dependent Claim
223 words
A nephroscopy cannula apparatus for providing a percutaneous access tract to the interior of the kidney for repeated insertion and withdrawal of various instruments therethrough, said apparatus consisting essentially of: a cannula including a cylindrical portion having a first, central passageway extending from a first end of said cannula to a second end of said cannula, said cannula further including a side port portion adjacent the second end of the cylindrical portion and including a third end separate from the ends of the cylindrical portion, the side port portion defining a second passageway extending from the first passageway to the third end, the cylindrical portion of said cannula including an insertion portion adjacent the first end which is sized and for extending from the renal pelvis of the kidney of a body to the exterior of the body, the central passageway of the cylindrical portion having a size sufficient for the reception therein of at least one of the instruments selected from the group consisting of a cystoscope, nephroscope, endoscope, resectoscope, choledocoscope, panendoscope and nephrocholedocoscope; means for temporarily securing said cannula in position with the insertion portion of the cylindrical portion being received extending from the renal pelvis of the kidney to the exterior of a body; and means for selectively closing at least a portion of the second end of said cannula.
Claim 14
Dependent Claim
22 words
The apparatus of claim 11 in which the central passageway has a diameter of from about 6 mm. to about 10 mm.
Claim 15
Dependent Claim
26 words
The apparatus of claim 12 in which the cylindrical portion of said cannula has an outside diameter of from about 7 mm. to about 12 mm.
Claim 16
Dependent Claim
76 words
The apparatus of claim 13 in which the cylindrical portion of said cannula includes a pair of circumferential grooves adjacent the second end, said closing means including a circular septum integrally attached to a ring, the ring being received within the circumferential groove farthest from the second end of the cannula, the septum including a circumferential, inwardly-directed flange received within the other of the circumferential grooves and the septum being attached to the cylindrical portion thereby.
Claim 17
Dependent Claim
38 words
The apparatus of claim 14 in which said means for securing said cannula comprises a means for securing said cannula to the skin of the body adjacent the point of insertion of the cylindrical portion of said cannula.
Claim 18
Independent Claim
229 words
A method for the performance of endourological procedures which comprises the steps of: a. inserting into the body a nephroscopy cannula to have a first end located within the renal pelvis of the kidney and a second end exterior of the body, the cannula including a cylindrical portion having a first, central passageway extending from the first end of said cannula to the second end of said cannula, said cannula further including a side port portion adjacent the second end of the cylindrical portion and including a third end separate from the ends of the cylindrical portion, the side port portion defining a second passageway extending from the first passageway to the third end, the cylindrical portion of said cannula including an insertion portion adjacent the first end which is sized for extending from the renal pelvis of the kidney to the exterior of the body, the central passageway of the cylindrical portion having a size sufficient for the reception therein of at least one of the instruments selected from the group consisting of a cystoscope, nephroscope, endoscope, resectoscope, choledocoscope, panendoscope and nephrocholedocoscope; b. temporarily securing said cannula in position with the insertion portion of the cylindrical portion being received extending from the renal pelvis of the kidney to the exterior of a body; and c. selectively closing at least a portion of the second end of said cannula.
Claim 19
Independent Claim
229 words
A method for the performance of endourological procedures which comprises the steps of: a. inserting into the body a nephroscopy cannula to have a first end located within the renal pelvis of the kidney and a second end exterior of the body, the cannula including a cylindrical portion having a first, central passageway extending from the first end of said cannula to the second end of said cannula, said cannula further including a side port portion adjacent the second end of the cylindrical portion and including a third end separate from the ends of the cylindrical portion, the side port portion defining a second passageway extending from the first passageway to the third end, the cylindrical portion of said cannula including an insertion portion adjacent the first end which is sized for extending from the renal pelvis of the kidney to the exterior of the body, the central passageway of the cylindrical portion having a size sufficient for the reception therein of at least one of the instruments selected from the group consisting of a cystoscope, nephroscope, endoscope, resectoscope, choledocoscope, panendoscope and nephrocholedocoscope; b. temporarily securing said cannula in position with the insertion portion of the cylindrical portion being received extending from the renal pelvis of the kidney to the exterior of a body; and c. selectively closing at least a portion of the second end of said cannula.
Claim 20
Dependent Claim
62 words
The method of claim 16 in which said securing of step b. comprises attaching a disc having a central opening to have the central opening secured about and to the cylindrical portion of said cannula and to have the perimeter of the disc attached to the skin of the body adjacent the point of insertion of the cylindrical portion of said cannula.
References Cited (Backward Citations)
No citation records indexed.
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