METHOD AND APPARATUS FOR TREATING URETHRAL STRICTURE

• US 20150327980A1
• Filed: 08/05/2014
• Published: 11/19/2015
• Est. Priority Date: 05/16/2014
• Status: Abandoned Application

• Current Assignee: Terumo Kabushiki Kaisha
• Original Assignee: Terumo Kabushiki Kaisha
• Inventors: Arastoo, Riyaheh, Nishio, Kosuke
• Application Number:
  US14/451,784
• Publication Number:
  US 20150327980A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61F 2/0063 Implantable repair or support meshes, e.g. hernia meshes
• CPC Class Codes: A61F 2/04 Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts A61F2/18, A61F2/20 take precedence; devices, other than stent-grafts, providing patency to, or preventing collapsing of, tubular structures of the body other than stent-grafts, e.g. stents A61F2/82; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95
• CPC Class Codes: A61F 2/82 Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95; for closing wounds, or holding wounds closed A61B17/04 - A61B17/115; dilators A61M29/00
• CPC Class Codes: A61F 2/848 having means for fixation to the vessel wall, e.g. barbs
• CPC Class Codes: A61F 2/92 Stents in the form of a rolled-up sheet expanding after insertion into the vessel , e.g. with a spiral shape in cross-section
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/0072 Delivery tools therefor
• CPC Class Codes: A61F 2002/047 Urethrae
• CPC Class Codes: A61F 2002/9583 Means for holding the stent on the balloon, e.g. using protrusions, adhesives or an outer sleeve
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2220/005 using adhesives
• CPC Class Codes: A61F 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61M 2025/1015 having two or more independently movable balloons where the distance between the balloons can be adjusted, e.g. two balloon catheters concentric to each other forming an adjustable multiple balloon catheter system
• CPC Class Codes: A61M 2025/1031 Surface processing of balloon members, e.g. coating or deposition; Mounting additional parts onto the balloon member's surface
• CPC Class Codes: A61M 2025/1054 having detachable or disposable balloons
• CPC Class Codes: A61M 2025/1081 having sheaths or the like for covering the balloon but not forming a permanent part of the balloon, e.g. retractable, dissolvable or tearable sheaths
• CPC Class Codes: A61M 2025/1086 having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves
• CPC Class Codes: A61M 25/0017 specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections
• CPC Class Codes: A61M 25/10 Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00
• CPC Class Codes: A61M 25/1029 : Production methods of the balloon members, e.g. blow-moulding, extruding, deposition or by wrapping a plurality of layers of balloon material around a mandril
• CPC Class Codes: B29C 66/4322 : by joining a single sheet to itself B29C66/4332 takes precedence
• CPC Class Codes: B29L 2031/7543 : Balloon catheters
• CPC Class Codes: Y10T 156/1038 : Hollow cylinder article
• CPC Class Codes: Y10T 29/49838 : by stringing
• CPC Class Codes: Y10T 29/49909 : Securing cup or tube between axially extending concentric annuli

Abstract

A method of treating a treatment area of a body lumen includes inserting an elongated member into the body lumen, wherein the elongated member is configured to guide a delivery member, the delivery member possessing an outer portion on which is mounted a treatment membrane, moving the delivery member to the treatment area, contacting the treatment membrane mounted on the delivery member with the treatment area for a predetermined period of time, and withdrawing the delivery member from the treatment area after the predetermined period of time.

Claims

1. A method of treating a treatment area of a body lumen, the method comprising:

inserting an elongated member into the body lumen, wherein said elongated member is configured to guide a delivery member, said delivery member possessing an outer portion on which is mounted a treatment membrane;

moving the delivery member to the treatment area;

contacting the treatment membrane mounted on the delivery member with the treatment area for a predetermined period of time; and

withdrawing the delivery member from the treatment area after the predetermined period of time.

2. The method of claim 1, wherein the delivery member possesses a fixing member capable of fixing the delivery member to the elongated member.

3. The method of claim 2, further comprising fixing the delivery member to the elongated body via the fixing member after moving the delivery member to the treatment area.

4. The method of claim 2, further comprising fixing the delivery member to the elongated body via the fixing member before moving the delivery member to the treatment area.

5. The method of claim 2, further comprising unfixing the delivery member from the elongated body via the fixing member and withdrawing the elongated member from the delivery member.

6. The method of claim 2, wherein the fixing member comprises an expandable member.

7. The method of claim 6, wherein the expandable member comprises an inflatable balloon.

8. The method of claim 7, wherein the inflatable balloon possesses an inner portion and an outer portion, the delivery member is fixed to the elongated body by inflating the inner portion, and the treatment membrane is contacted with the treatment area by inflating the outer portion.

9. The method of claim 1, wherein the delivery member comprises an expandable member, and contact with the treatment area is maintained by inflating the expandable member.

10. The method of claim 9, wherein the expandable member comprises an inflatable balloon.

11. The method of claim 1, further comprising, after the step of inserting the elongated body into the body lumen, fixing the elongated body to at least one side of the edge of the body lumen.

12. The method of claim 1, further comprising, before the step of withdrawing the delivery member from the treatment area, detaching the treatment membrane from the delivery member.

13. The method of claim 1, further comprising, after the step of moving the delivery member to the treatment area and before the step of pressing the outer portion of the delivery member against the treatment membrane, rotating the delivery member to a position in which the outer portion of the delivery member faces the treatment area.

14. The method of claim 1, wherein the elongated member comprises an endoscope or a sheath.

15. The method of claim 14, further comprising, before the step of pressing the outer portion of the delivery member against the treatment membrane, contracting the delivery member to allow relative movement between the delivery member and the elongated member and then dismounting the delivery member from the elongated member.

16. The method of claim 1, further comprising, before the step of inserting the elongated body into the body lumen, measuring the length between an anatomical landmark and the treatment area.

17. The method of claim 16, wherein the anatomical landmark includes the bladder neck, the external urethra meatus, or the membranous urethra.

18. The method of claim 1, wherein, in the step of moving the delivery member to the treatment area, the delivery member is delivered under endoscopic view.