IP Library › Patent Application 15914510
Patent Application
App. No. 15/914,510

CATHETER SLEEVE FOR CRYOTHERAPY SYSTEM

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Quick Facts
Patent No.
US None
App. No.
15/914,510
Abstract

The present disclosure relates generally to the field of cryotherapy. In particular, the present disclosure relates to catheter sleeves for cryotherapy systems that inhibit and remove build-up and backflow of undesired material in the working channel of endoscopes during cryotherapy treatments.

Claims (26)

1 . A cryogen delivery catheter, comprising:

an elongate shaft having a distal end portion, and

a sleeve section comprising an outer surface, the outer surface including at least one first portion with a first diameter and at least one second portion with a second diameter that is greater than the first diameter and that is dimensioned to contact an inner surface of an endoscope working channel.

2 . The catheter of claim 1 , wherein the sleeve section is a tubular member defining a lumen.

3 . The catheter of claim 1 , wherein the sleeve section is integral with the shaft.

4 . The catheter of claim 1 , wherein the first diameter is the same as the outer diameter of the catheter shaft.

5 . The catheter of claim 1 , wherein the second portion includes a radial mid-body band.

6 . The catheter of claim 1 , wherein the second portion includes a tapered incline with a slope facing distally.

7 . The catheter of claim 1 , wherein the second portion includes a planar middle portion that tapers in diameter at both ends to the first diameter of the first portion.

8 . The catheter of claim 1 , wherein the sleeve section includes a radial band with a sloped proximal surface and a sloped distal surface.

9 . The catheter of claim 1 , wherein the sleeve section includes a lumen with a tapered diameter.

10 . A cryotherapy system, comprising:

an endoscope;

a cryogen delivery catheter slidably disposed within a working channel of the endoscope; and

a catheter sleeve disposed around a distal portion of the cryogen delivery catheter, the catheter sleeve including an outer surface having a first diameter portion and a second diameter portion, the second diameter portion having a greater diameter than the first diameter portion and configured to contact an inner wall of the working channel.

11 . The cryotherapy system of claim 10 , wherein the second diameter portion is configured to span a gap-space between the distal portion of the cryogen delivery catheter and the working channel of the endoscope.

12 . The cryotherapy system of claim 10 , wherein the catheter sleeve forms an interference fit with the distal portion of the cryogen delivery catheter.

13 . The cryotherapy system of claim 10 , wherein the catheter sleeve is adhered to the distal portion of the cryogen delivery catheter.

14 . The cryotherapy system of claim 10 , wherein the diameter of the second diameter portion is greater than or equal to a diameter of the working channel of the endoscope.

15 . The cryotherapy system of claim 10 , wherein the second diameter portion is configured to remove or inhibit build-up of undesired material from the working channel of the endoscope as the delivery catheter slides distally within the working channel.

16 . The cryotherapy system of claim 10 , wherein the catheter sleeve is integrally formed as a part of the distal portion of cryogen delivery catheter.

17 . A method of maintaining a working channel of an endoscope comprising:

inserting a catheter into the working channel of the endoscope with a distal end portion having a sleeve section comprising an outer surface, the outer surface including at least one first portion with a first diameter and at least one second portion with a second diameter that is greater than the first diameter and that is dimensioned to contact an inner surface of the working channel of the endoscope.

18 . The method of claim 17 , further comprising translating the catheter within the working channel of the endoscope.

19 . The method of claim 17 , further comprising shielding at least one sensor mounted on the catheter or within the working channel of the endoscope proximal to the sleeve section, whereby undesired thermal effects due to gases or fluids build up within the working channel are mitigated.

20 . The method of claim 17 , further comprising eliminating undesired gases or fluids from the working channel of the endoscope, whereby negative thermal effects on the strength of cryospray during a cryotherapy procedure are minimized.

Assignments (9)
SECURITY INTEREST Recorded Jan 25, 2024
From: CSA MEDICAL, INC.
To: CHV III, L.P.; SV LIFE SCIENCES FUND V, STRATEGIC PARTNERS, L.P.; SV LIFE SCIENCES FUND V, L.P.; INTERSOUTH PARTNERS VII, L.P.; FIRST ANALYSIS PRIVATE EQUITY FUND V-A, L.P.; FIRST ANALYSIS PRIVATE EQUITY FUND V-C, L.P.; FIRST ANALYSIS PRIVATE EQUITY FUND V, L.P.; BHCM CSA MEDICAL, LLC; ALFRED M. RANKIN, JR. TRUST; BENMIKE INVESTMENT CO. LLC; CHARLES G. BROWN, INC.; CLAIBORNE R. RANKIN REVOCABLE TRUST U/A/D 6/22/71; BROWN, DAVID P.; INKLEY, E. DALE; COWELL, ENSIGN; EVERGREEN VENTURES LTD; KRONEBERGER, G. BRIAN, JR.; G. RUSSELL LINCOLN REVOCABLE TRUST DTD 10/31/2007; LINCOLN, G. RUSSELL; GUIDE MEDICAL VENTURES, LLC; H&B INVESTMENT PARTNERSHIP; MAHONEY, JAMES J., JR.; DAVIDSON, MARC S.; DYER, MARK V.; MEDTECH INVESTMENTS, LLC; ELLIS, MICHAEL A.; MWK TRUST, MIRIAM WINDER-KELLY TTE; SMITH, NATHANIEL T.; MARY T. VON HERRMANN FAMILY TRUST; SCHWARTZ, RICHARD T.; PECK, STEVEN E.; SCHAEFER, STEVEN E.; SYCAMORE FUND 1, LLC; SYMARK LLC; TIMOTHY T WEGLICKI RESTATED REVOCABLE TRUST U/A DTD 9-13- 2022 AS AMENDED AND RESTATED DURING LIFETIME OF TIMOTHY T WEGLICKI; MELITA, TOM; VICTOIRE G. RANKIN TRUST; WILLIAM E. CONWAY UTA DATED 12/12/80 AS AMENDED
Reel/Frame 066242/0249 →
SECURITY INTEREST Recorded Sep 20, 2023
From: CSA MEDICAL, INC.
To: CHV III, L.P.; SV LIFE SCIENCES FUND V, STRATEGIC PARTNERS, L.P.; SV LIFE SCIENCES FUND V, L.P.; INTERSOUTH PARTNERS VII, L.P.; FIRST ANALYSIS PRIVATE EQUITY FUND V-A, L.P.; FIRST ANALYSIS PRIVATE EQUITY FUND V-C, L.P.; FIRST ANALYSIS PRIVATE EQUITY FUND V, L.P.; BHCM CSA MEDICAL, LLC; ALFRED M. RANKIN, JR. TRUST; BENMIKE INVESTMENT CO. LLC; CHARLES G. BROWN, INC.; CLAIBORNE R. RANKIN REVOCABLE TRUST U/A/D 6/22/71; BROWN, DAVID P.; INKLEY, E. DALE; COWELL, ENSIGN; EVERGREEN VENTURES LTD; KRONEBERGER, G. BRIAN, JR.; G. RUSSELL LINCOLN REVOCABLE TRUST DTD 10/31/2007; LINCOLN, G. RUSSELL; GUIDE MEDICAL VENTURES, LLC; H&B INVESTMENT PARTNERSHIP; MAHONEY, JAMES J., JR.; DAVIDSON, MARC S.; MEDTECH INVESTMENTS, LLC; ELLIS, MICHAEL A.; MWK TRUST, MIRIAM WINDER-KELLY TTE; SMITH, NATHANIEL T.; MARY T. VON HERRMANN FAMILY TRUST; SCHWARZ, RICHARD T.; SCHAEFER, STEVEN E.; PECK, STEVEN E.; SYCAMORE FUND 1, LLC; SYMARK LLC; WEGLICKI, TIMOTHY T.; MELITA, TOM; VICTOIRE G. RANKIN TRUST; WILLIAM E. CONWAY UTA DATED 12/12/80 AS AMENDED; DYER, MARK V.
Reel/Frame 064963/0228 →
SECURITY INTEREST Recorded Apr 28, 2023
From: CSA MEDICAL, INC.
To: CHV III, L.P.; SV LIFE SCIENCES FUND V, L.P.; SV LIFE SCIENCES FUND V, STRATEGIC PARTNERS, L.P.; INTERSOUTH PARTNERS VII, L.P.; MATHERS ASSOCIATES; BHCM CSA MEDICAL, LLC; ALFRED M. RANKIN, JR. TRUST; BENMIKE INVESTMENT CO. LLC; CHARLES G. BROWN, INC.; CLAIBORNE R. RANKIN REVOCABLE TRUST U/A/D 6/22/71; BROWN, DAVID P.; INKLEY, E. DALE; COWELL, ENSIGN; EVERGREEN VENTURES LTD; KRONEBERGER, G. BRIAN, JR.; LINCOLN, G. RUSSELL; G. RUSSELL LINCOLN REVOCABLE TRUST DTD 10/31/2007; GUIDE MEDICAL VENTURES, LLC; H&B INVESTMENT PARTNERSHIP; MAHONEY, JAMES J.; DAVIDSON, MARC S.; DYER, MARK V.; MEDTECH INVESTMENTS, LLC; ELLIS, MICHAEL A.; MWK TRUST, MIRIAM WINDER-KELLY TTE; SMITH, NATANIEL T.; HERMANN, TIM VON; SCHWARZ, RICHARD T.; PECK, STEVEN E.; SCHAEFER, STEVEN E.; SYCAMORE FUND 1, LLC; SYMARK LLC; WEGLICKI, TIMOTHY T.; MELITA, TOM; VICTOIRE G. RANKIN TRUST; WILLIAM E. CONWAY UTA DATED 12/12/80 AS AMENDED
Reel/Frame 063474/0974 →
SECURITY INTEREST Recorded Dec 16, 2022
From: CSA MEDICAL, INC.
To: CHV III, L.P.; SV LIFE SCIENCES FUND V, L.P.; SV LIFE SCIENCES FUND V, STRATEGIC PARTNERS, L.P.; INTERSOUTH PARTNERS VII, L.P.; MATHERS ASSOCIATES; DISRUPTIVE INNOVATION FUND, LP; BHCM CSA MEDICAL, LLC; ALFRED M. RANKIN, JR. TRUST; BENMIKE INVESTMENT CO. LLC; CHARLES G. BROWN, INC.; CLAIBORNE R. RANKIN REVOCABLE TRUST U/A/D 6/22/71; BROWN, DAVID P; INKLEY, E. DALE; COWELL, ENSIGN; EVERGREEN VENTURES LTD; KRONEBERGER, G. BRIAN, JR.; LINCOLN, G. RUSSELL; G. RUSSELL LINCOLN REVOCABLE TRUST DTD 10/31/2007; GUIDE MEDICAL VENTURES, LLC; H&B INVESTMENT PARTNERSHIP; MAHONEY, JAMES J, JR.; DAVIDSON, MARC S; DYER, MARK V.; MEDTECH INVESTMENTS, LLC; ELLIS, MICHAEL A; MWK TRUST, MIRIAM WINDER-KELLY TTE; SMITH, NATHANIEL; NATIONAL FINANCIAL SERVICES/ FIDELITY INVESTMENTS CUSTODIAN FBO STEVEN E. SCHAEFER IRA; HERMANN, TIM VON; SCHWARZ, RICHARD T; PECK, STEVEN E.; SCHAEFER, STEVEN E.; SYCAMORE FUND 1, LLC; SYMARK LLC; WEGLICKI, TIMOTHY T.; MELITA, TOM; VICTOIRE G. RANKIN TRUST; WILLIAM E. CONWAY UTA DATED 12/12/80 AS AMENDED
Reel/Frame 062132/0359 →
SECURITY INTEREST Recorded Nov 3, 2021
From: CSA MEDICAL, INC.
To: CHV III, L.P.; SV LIFE SCIENCES FUND V, L.P.; SV LIFE SCIENCES FUND V, STRATEGIC PARTNERS, L.P.; INTERSOUTH PARTNERS VII, L.P.; DISRUPTIVE INNOVATION FUND, LP; BHCM CSA MEDICAL, LLC; ALFRED M. RANKIN, JR. TRUST; BENMIKE INVESTMENT CO. LLC; CHARLES G. BROWN, INC.; CLAIBORNE R. RANKIN REVOCABLE TRUST U/A/D 6/22/71; INKLEY, E. DALE; COWELL, ENSIGN; EVERGREEN VENTURES LTD; KRONEBERGER, G. BRIAN, JR.; LINCOLN, G. RUSSELL; G. RUSSELL LINCOLN REVOCABLE TRUST DTD 10/31/2007; GUIDE MEDICAL VENTURES, LLC; H&B INVESTMENT PARTNERSHIP; MAHONEY, JAMES J., JR.; DAVIDSON, MARC S.; DYER, MARK V.; MEDTECH INVESTMENTS, LLC; ELLIS, MICHAEL A.; MWK TRUST, MIRIAM WINDER-KELLY TTE; SMITH, NATHANIEL T.; NATIONAL FINANCIAL SERVICES/ FIDELITY INVESTMENTS CUSTODIAN FBO STEVEN E. SCHAEFER IRA; BROWN, DAVID; HERRMANN, TOM VON; SCHWARZ, RICHARD T.; PECK, STEVEN E.; SCHAEFER, STEVEN E.; SYCAMORE FUND 1, LLC; SYMARK LLC; WEGLICKI, TIMOTHY T.; MELITA, TOM; VICTOIRE G. RANKIN TRUST; WILLIAM E. CONWAY UTA DATED 12/12/80 AS AMENDED
Reel/Frame 058006/0451 →
SECURITY INTEREST Recorded Mar 13, 2020
From: CSA MEDICAL, INC.
To: CHV III, L.P.; SV LIFE SCIENCES FUND V, L.P.; SV LIFE SCIENCES FUND V, STRATEGIC PARTNERS, L.P.; INTERSOUTH PARTNERS VII, L.P.; FIRST ANALYSIS PRIVATE EQUITY FUND V-A, L.P.; FIRST ANALYSIS PRIVATE EQUITY FUND V, L.P.; FIRST ANALYSIS PRIVATE EQUITY FUND V-C, L.P.; MATHERS ASSOCIATES; DISRUPTIVE INNOVATION FUND, LP; BHCM CSA MEDICAL, LLC; SYMARK LLC; ALFRED M. RANKIN, JR. TRUST; BENMIKE INVESTMENT CO. LLC; CLAIBORNE R. RANKIN REVOCABLE TRUST U/A/D 6/22/71; EVERGREEN VENTURES LTD; KRONEBERGER, G. BRIAN; GUIDE MEDICAL VENTURES, LLC; H&B INVESTMENT PARTNERSHIP; MEDTECH INVESTMENTS, LLC; ELLIS, MICHAEL A; MWK TRUST, MIRIAM WINDER-KELLY TTE; SCHWARZ, RICHARD T; SCHAEFER, STEVEN E.; SYCAMORE FUND 1, LLC; MELITA, TOM; VICTOIRE G. RANKIN TRUST
Reel/Frame 052105/0773 →
SECURITY INTEREST Recorded Dec 10, 2019
From: CSA MEDICAL, INC.
To: HORIZON TECHNOLOGY FINANCE CORPORATION
Reel/Frame 051227/0731 →
SECURITY INTEREST Recorded Oct 22, 2018
From: CSA MEDICAL, INC.
To: HORIZON TECHNOLOGY FINANCE CORPORATION
Reel/Frame 047261/0311 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 13, 2018
From: FAN, WEI L.; HANLEY, BRIAN M.; MCDERMOTT, SEAN A.; O'CONNOR, JOHN P.
To: CSA MEDICAL, INC.
Reel/Frame 045532/0602 →