Device and methods for inspection and treatment of hemorrhoids

Patent metadata

Field	Value
Publication number	US-11678786-B2
Application number	US-202016912322-A
Country	US
Kind code	B2
Filing date	Jun 25, 2020
Priority date	Jul 16, 2019
Publication date	Jun 20, 2023
Grant date	Jun 20, 2023

Abstract

A device may include an elongated housing formed of an optically transparent material, the housing extending from a proximal end to a distal end and including a lateral wall extending from the proximal end to a distal tip of the housing, the housing defining a lumen extending into the housing from a proximal opening in the proximal end of the housing. The device also may include a first port extending through the lateral wall of the housing to open the lumen of the housing to an exterior of the housing, the first port being sized and shaped to receive therein a target portion of tissue to be inspected and/or treated.

First claim

The invention claimed is:

1. A device, comprising:
an elongated housing formed of an optically transparent material, the housing extending from a proximal end to a distal end and including a lateral wall extending from the proximal end to a distal tip of the housing, the housing defining a lumen extending into the housing from a proximal opening in the proximal end of the housing;
a first port extending through the lateral wall of the housing to open the lumen of the housing to an exterior of the housing, the first port being sized and shaped to receive therein a target portion of tissue to be inspected and/or treated;
a first ligation band holding structure surrounding the first port, the first ligation band holding structure configured to stretch a first ligation band around the first port so that, tissue drawn into the lumen of the housing via the first port passes through the first ligation band; and
a first ligation band deploying mechanism selectively operable to deploy the first ligation band from the first ligation band holding structure so that the first ligation band constricts around any tissue extending through the first port, the first ligation band deploying mechanism including a tab formed as a part of the housing movable relative to adjacent portions of the housing, the tab being located adjacent to the first port so that, the tab abuts a portion of a ligation band received around the first port, movement of the tab relative to the adjacent portions of the housing moving the ligation band out of engagement with the first ligation band holding structure.

2. The device of claim 1 , wherein the housing is sized and shaped for insertion into a rectum and the first port is sized and shaped to receive a hemorrhoid therein so that a user may view the hemorrhoid and tissue adjacent to the housing through a transparent housing via the proximal opening of the lumen of the housing.

3. The device of claim 1 , further comprising:
a second port extending through the lateral wall of the housing to open the lumen of the housing to an exterior of the housing, the second port being sized and shaped to receive therein a target portion of tissue to be inspected and/or treated;
a second ligation band holding structure surrounding the second port, the second ligation band holding structure configured to stretch a second ligation band around the second port so that, tissue drawn into the lumen of the housing via the second port passes through the second ligation band; and
a second ligation band deploying mechanism selectively operable to deploy the second ligation band from the second ligation band holding structure so that the second ligation band constricts around any tissue extending through the second port.

4. The device of claim 3 , further comprising:
a first vacuum chamber formed within the housing and in fluid communication with the first port;
a second vacuum chamber formed within the housing and in fluid communication with the second port; and
a source of negative fluid pressure selectively couplable to a selected one of the first and second vacuum chambers to apply suction to the corresponding one of the first and second ports to draw target tissue into the corresponding one of the first and second vacuum chambers.

5. The device of claim 4 , further comprising:
a port selection mechanism that couples the source of negative pressure to the selected one of the first and second vacuum chambers, the port selection mechanism including a sealing member that abuts a wall that seals the first and second vacuum chambers, the wall including a first hole opening a plunger chamber to the first port and a second hole opening the plunger chamber to the second vacuum chamber, the sealing member being movable between a first configuration in which the first hole opening is open and the second hole opening is sealed and a second configuration in which the second hole opening is open and the first hole opening is sealed,
wherein the source of negative fluid pressure includes a plunger slidably mounted within the first vacuum chamber so that, drawing the plunger proximally through the first vacuum chamber draws negative pressure in the first vacuum chamber to apply suction to the first port.

6. The device of claim 5 , wherein the source of negative fluid pressure includes a plunger slidably mounted within the lumen of the housing so that, drawing the plunger proximally through the lumen of the housing draws negative pressure in the selected one of the first and second vacuum chambers to apply suction to the one of the first and second ports that corresponds to the selected one of the first and second vacuum chambers and wherein the sealing member is rotatably received within the lumen of the housing.

7. The device of claim 1 , further comprising:
a first vacuum chamber formed within the housing and in fluid communication with the first port; and
a source of negative fluid pressure selectively couplable to the first vacuum chamber to apply suction to the first port to draw target tissue through the first port into the first vacuum chamber.

8. The device of claim 7 , wherein the source of negative fluid pressure includes a plunger slidably mounted within the first vacuum chamber so that, drawing the plunger proximally through the first vacuum chamber draws negative pressure in the first vacuum chamber to apply suction to the first port.

9. The device of claim 1 , further comprising:
a radially protruding lip at the proximal end of the housing, extending along a surface that forms a portion of a sphere abutting the proximal end of the housing, wherein the lip has a diameter greater than that of the housing.

10. The device of claim 9 , wherein the lip has a plurality of finger grips, the finger grips being concave cuts extending from the proximal end of the lip toward the distal end of the lip.

11. The device of claim 1 , further comprising:
a proximally projecting handle, the handle extending proximally beyond the proximal end of the housing; and
an array of illuminating elements distributed around a circumference of the housing to enhance visualization of tissue.

12. The device of claim 11 wherein the illuminating elements are LEDs.

13. The device of claim 12 , wherein the LEDs also include a secondary Narrow Band Imagining capability.

14. The device of claim 1 , wherein the first ligation band holding structure includes a first port lip surrounding at least a portion of the first port.

15. The device of claim 14 , wherein the tab of the first ligation band deploying mechanism is aligned with a gap in the first port lip so that movement of the tab through the gap will push a ligating band stretched around the lip off of the first ligation band holding structure.

16. The device of claim 1 , wherein the tab is connected to a lever member connected to the housing so that pressure applied to the lever member moves the tab relative to the first ligation band holding structure to deploy a ligation band therefrom.

Assignees

• Boston Scient Scimed Inc

Inventors

• WINDHEUSER Kevin
• Tabur Peter
• Carrillo Jr Oscar R
• Comee Shaun Dennis
• Bagley Kevin L
• Ibanez Nestor Allan
• Mcgovern Michael

Classifications

• A61B2217/005

  with suction drainage system · CPC title

• A61B2017/00424

  ergonomic, e.g. fitting in fist · CPC title

• A61B1/00147

  Holding or positioning arrangements · CPC title

• A61B2017/12018

  Elastic band ligators · CPC title

• A61B17/12013 Primary

  for use in minimally invasive surgery, e.g. endoscopic surgery · CPC title