Incising implant for the prostatic urethra

• US 11,304,724 B2
• Filed: 12/02/2014
• Issued: 04/19/2022
• Est. Priority Date: 12/30/2013
• Status: Active Grant

• Current Assignee: Medi-Tate Ltd. (Olympus Corporation)
• Original Assignee: Medi-Tate Ltd. (Olympus Corporation)
• Inventors: Kilemnik, Ido
• Primary Examiner(s): Aleman, Sarah W
• Application Number:
  US15/109,311
• Publication Number:
  US 20160317180A1
• Time in Patent Office: 2,695 Days
• CPC Class Codes: A61B 17/320725 with radially expandable cutting or abrading elements A61B17/32075 takes precedence
• CPC Class Codes: A61B 17/3209 Incision instruments
• CPC Class Codes: A61B 2017/00274 Prostate operation, e.g. prostatectomy, turp, bhp treatment
• CPC Class Codes: A61B 2017/00862 elastic or resilient for sutures A61B2017/0618
• CPC Class Codes: A61B 2017/320733 with a flexible cutting or scraping element, e.g. with a whip-like distal filament member
• CPC Class Codes: A61B 2017/32096 for slowly cutting through tissue, e.g. stent like temporary implants having sharp edges
• 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 2002/047 Urethrae

Abstract

An incising implant for creating incisions in the prostatic urethra of a subject, the implant including at least two closed-shaped wires, each of the wires having a proximal section, a distal section and two longitudinal sections extending between the proximal section and the distal section, each of the closed-shaped wires being elastic thereby being compressible into a compressed configuration, each of the longitudinal sections of each of the wires being adjoined with another longitudinal section of another one of the wires.

Claims

1. An incising implant for the prostatic urethra of a subject, the incising implant comprising:

at least two wires, the at least two wires comprising closed-shaped wires, each of said wires having a proximal section, a distal section and a plurality of longitudinal sections extending along a length between said proximal section and said distal section, each of said wires being elastic thereby being compressible into a compressed configuration, said longitudinal sections of each of said wires being adjoined with another longitudinal section of another one of said wires along said length, in an open configuration of said incising implant to allow said incising implant to incise tissue in said prostatic urethra, said at least two wires diverge at the distal sections so that said distal sections form a simple closed curve shape at a terminus of said incising implant in said open configuration; and

an anchor, said anchor being closed-shaped and extending outwardly from at least one of said proximal sections and through one of said closed-shaped wires in said open configuration.

2. The incising implant of claim 1, wherein each of said longitudinal sections of each of said wires being wound around said another longitudinal section of said another one of said wires.

3. The incising implant of claim 1, further comprising a proximal cap coupled with said proximal section of each of said wires, said proximal cap configured to hold said wires together.

4. The incising implant of claim 3, wherein said proximal cap including a proximal non-round niche configured to accept a corresponding pin, and configured to transfer rotary motion of said pin to said incising implant.

5. The incising implant of claim 3, configured to be used with a guidewire configured for insertion into a proximal niche of said proximal cap of said incising implant.

6. The incising implant of claim 1, further comprising an extraction string configured to couple with said incising implant, said extraction string being arranged to allow pulling said incising implant out of said subject.

7. The incising implant of claim 1, wherein said anchor is configured for preventing said incising implant from moving toward a bladder of said subj ect.

8. The incising implant of claim 1, wherein said wires form together a wire frame having a proximal apex formed by said proximal section of each of said wires, and having a distal base formed by said distal ends of each of said wires.

9. The incising implant of claim 1, wherein said wires are selected from a list consisting of:

Nickel Titanium alloy (Nitinol), and biodegradable materials.

10. The incising implant of claim 1, wherein said distal sections of said wires forms form a triangular shape.

11. The incising implant of claim 1, wherein said incising implant is enfolded in a sheath in said compressed configuration.

12. An implant for the prostatic urethra of a subject, the implant comprising:

at least two wires being closed-shaped wires, each wire having a proximal section, a distal section and a plurality of longitudinal sections extending between said proximal section and said distal section, each of said wires being elastic thereby being compressible into a compressed configuration, at least one longitudinal section of each of said wires being at least partially adjoined with another longitudinal section of another one of said wires, said closed-shaped wires diverge from each other at distal ends of the closed-shaped wires in an open configuration of said implant; and

an anchor, said anchor including at least two anchor sections, said at least two anchor sections being distinct from said at least two wires, said at least two anchor sections are coupled with said proximal section of said closed-shaped wires, at least one anchor section extends from said proximal section of one of said at least two wires, and at least another anchor section extends from said proximal section of another one of said at least two wires, said at least two anchor sections extending outwardly and being united together in a termination of said anchor;

wherein said implant is implantable in said prosthetic urethra of said subject, said wires are configured for applying pressure on surrounding tissues of said prosthetic urethra in said open configuration of said implant.

13. The implant of claim 12, each of said longitudinal sections of each of said wires being wound around said another longitudinal section of said another one of said wires.

14. The implant of claim 12, wherein the anchor is configured for preventing said implant from moving in the direction of a bladder of said subject.

15. The implant of claim 12, further comprising another anchor configured to anchor said implant from movement in either one of a proximal direction or a distal direction.

16. The implant of claim 12, wherein each adjoined pair of said longitudinal sections of said wires forms an edge of a frame of said wires in a longitudinal direction.