Devices and methods for gastrointestinal bypass

• US 9,451,960 B2
• Filed: 01/16/2013
• Issued: 09/27/2016
• Est. Priority Date: 05/31/2012
• Status: Expired due to Fees

• Current Assignee: ValenTx, Inc.
• Original Assignee: ValenTx, Inc.
• Inventors: Huntley, Tyler, Chen, Cole, Neisz, Johann
• Primary Examiner(s): DEAK, LESLIE R
• Application Number:
  US13/743,287
• Publication Number:
  US 20130324907A1
• Time in Patent Office: 1,350 Days
• Field of Search: 604/8, 604/9, 604/264, 623/23.64, 623/1.15
• US Class Current: 1/1
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/1114 of the digestive tract, e.g. bowels or oesophagus
• CPC Class Codes: A61B 2017/00818 Treatment of the gastro-intestinal system
• CPC Class Codes: A61B 2017/0404 Buttons
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors
• CPC Class Codes: A61B 2017/0414 having a suture-receiving opening, e.g. lateral opening
• CPC Class Codes: A61B 2017/0417 T-fasteners
• CPC Class Codes: A61B 2017/0419 H-fasteners
• CPC Class Codes: A61B 2017/0464 for soft tissue
• CPC Class Codes: A61B 2017/047 having at least one proximally pointing needle located at the distal end of the instrument, e.g. for suturing trocar puncture wounds starting from inside the body
• CPC Class Codes: A61B 2017/06052 Needle-suture combinations in which a suture is extending inside a hollow tubular needle, e.g. over the entire length of the needle
• CPC Class Codes: A61B 2017/0647 having one single leg, e.g. tacks
• CPC Class Codes: A61B 2090/3908 Soft tissue, e.g. breast tissue
• CPC Class Codes: A61B 2090/395 with marking agent for marking skin or other tissue
• CPC Class Codes: A61B 2090/3966 Radiopaque markers visible in an X-ray image
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers
• 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 2002/045 Stomach, intestines
• CPC Class Codes: A61F 2250/0097 Visible markings, e.g. indicia
• CPC Class Codes: A61F 5/0036 : Intragastrical devices
• CPC Class Codes: A61F 5/0076 : preventing normal digestion, e.g. Bariatric or gastric sleeves
• CPC Class Codes: A61F 5/0079 : Pyloric or esophageal obstructions
• CPC Class Codes: A61F 5/0089 : Instruments for placement or removal

Abstract

Devices and methods for gastrointestinal bypass are described. A gastrointestinal bypass device includes a gastrointestinal cuff and a gastrointestinal sleeve. The cuff may be configured to be attached in the esophagus, and may be sufficiently flexible to expand and collapse to conform with the inside of the esophagus to allow the esophagus to function substantially normally. The sleeve is configured to be coupled to the cuff, and may be made of a material that is floppy or flaccid but does not substantially expand radially.

Claims

1. A tissue anchor, comprising:

a proximal retention element;

a distal retention element having a hub and a plurality of petals extending from a distal end of the hub, each of the petals having a tissue contact portion, the distal retention element having a collapsed configuration for delivery inside a hollow needle and an expanded configuration wherein each of the tissue contact portions is substantially perpendicular to a longitudinal axis of the hub and proximal to a proximal end of the hub; and

a tension element having a proximal portion coupled to the proximal retention element, the tension element having a distal portion coupled to the hub of the distal retention element, wherein the tension element is not hollow.

2. The tissue anchor of claim 1, wherein the tissue contact portions extend outward away from the longitudinal axis of the hub.

3. The tissue anchor of claim 1, wherein the tissue contact portions extend inward toward the longitudinal axis of the hub.

4. The tissue anchor of claim 1, wherein the hub and the petals are formed from a single piece of material.

5. The tissue anchor of claim 1, wherein the hub and the petals are laser cut from a single piece of material.

6. The tissue anchor of claim 1, wherein the hub and the petals are formed from separate pieces of material.

7. The tissue anchor of claim 1, wherein the petals are formed from open loops of wire.

8. The tissue anchor of claim 1, wherein the petals are set into a desired shape.

9. The tissue anchor of claim 1, wherein each of the petals includes a connecting portion coupling the hub to the tissue contact portion.

10. The tissue anchor of claim 9, wherein the connecting portion includes a first curved portion coupled to the hub and a second curved portion coupled to the tissue contact portion.

11. The tissue anchor of claim 10, wherein the first curved portion extends from the distal end of the hub substantially parallel to the longitudinal axis of the hub.

12. The tissue anchor of claim 10, wherein the first curved portion curves approximately 135 to 180 degrees away from the longitudinal axis of the hub.

13. The tissue anchor of claim 12, wherein the second curved portion curves approximately 45 to 90 degrees away from the longitudinal axis of the hub.

14. The tissue anchor of claim 10, wherein the first curved portion curves approximately 60 to 120 degrees away from the longitudinal axis of the hub.

15. The tissue anchor of claim 14, wherein the second curved portion curves approximately 150 to 210 degrees proximally toward the longitudinal axis of the hub.

16. The tissue anchor of claim 1, wherein the distal retention element includes a distal portion that is rounded.

17. The tissue anchor of claim 1, wherein the distal retention element includes a distal portion that is substantially flat.

18. The tissue anchor of claim 1, wherein the distal retention element has a height of approximately 1 mm to 5 mm.

19. A tissue anchor, comprising:

a proximal retention element;

a distal retention element having a hub and a plurality of petals extending from a distal end of the hub, each of the petals having a tissue contact portion, the distal retention element having a collapsed configuration for delivery inside a hollow needle and an expanded configuration wherein each of the tissue contact portions is substantially perpendicular to a longitudinal axis of the hub and proximal to a proximal end of the hub; and

a suture having a proximal portion coupled to the proximal retention element, the suture having a distal portion coupled to the hub of the distal retention element.