Protective surgical cutter

Patent metadata

Field	Value
Publication number	US-9889569-B2
Application number	US-201615096323-A
Country	US
Kind code	B2
Filing date	Apr 12, 2016
Priority date	Apr 12, 2016
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

An apparatus and method are provided for surgical removal of a ring. The apparatus includes guards rotatably connected, handles rotatably connected to the guards that each include a portion partially disposed within the respective guard, a guide connected to the guards, and blades disposed on the portion of the handles. The blades contact with at least one of the guide and an inner surface of the respective guard. A rotational axis of a joint between the guards, a rotational axis of a first handle and a first guard, and a rotational axis of a second handle and a second guard are substantially parallel. Movement of a first end of the first handle toward a first end of the second handle results in movement of a second end of the first handle toward a second end of the second handle, and movement of a first blade toward a second blade.

First claim

What is claimed is:

1. An apparatus for surgical removal of a ring, comprising:
a first guard;
a second guard, the second guard rotatably connected to the first guard;
a first handle, the first handle rotatably connected to the first guard and including a first portion partially disposed within the first guard;
a second handle, the second handle rotatably connected to the second guard and including a first portion partially disposed within the second guard;
a guide connected to the first guard and the second guard;
a first blade, disposed on the first portion of the first handle, the first blade in contact with at least one of the guide and an inner surface of the first guard; and
a second blade, disposed on the first portion of the second handle, the second blade in contact with at least one of the guide and an inner surface of the second guard, wherein
an axis of rotation of a joint between the first guard and the second guard, an axis of rotation of the first handle and the first guard, and an axis of rotation of the second handle and the second guard are parallel,
movement of a first end of the first handle toward a first end of the second handle results in movement of a second end of the first handle toward a second end of the second handle, and movement of the first blade toward the second blade,
the guide is disposed in contact with the first guard and the second guard along a length of the guide, and the guide includes:
a bracket disposed on a side of one of the first guard and the second guard,
a bracket pin connecting the bracket to the one of the first guard and the second guard,
a fastener connecting the bracket to a first end of the guide,
a locator, a first end of the locator disposed next to a side of the other one of the first guard and the second guard, and a second end of the locator is connected to a second end of the guide, and
a locator pin connecting the locator to the other one of the first guard and the second guard, and

wherein an edge of the first blade is in contact with at least one of the inner surface of the first guard and the guide, due to compression of a first blade spring, as the first blade moves out from within the first guard, through a range of motion along a length of the guide, and an edge of the second blade is in contact with at least one of the inner surface of the second guard and the guide, due to compression of a second blade spring, as the second blade moves out from within the second guard, through a range of motion along a length of the guide, the first blade and the second blade moving closer together.

2. The apparatus for surgical removal of a ring according to claim 1 , wherein: the first and the second blades each include:
a cutting blade disposed on at least one of a first edge and a second edge,
a blade pin disposed on a third edge,
a blade beam disposed on a fourth edge, and
the respective first or second blade spring disposed about and along the blade pin,
wherein each of the first and the second blades is connected to the respective first and second handles by the blade beam disposed within a beam channel of the respective first and second handles and the blade pin disposed in a pin groove of the respective first and second handles, the respective first or second blade spring is compressed between the third edge of each of the first and the second blades and the respective first and second handles, and each of the first and the second blades is slidable with respect to the respective first and second handles along a length of the beam channel.

3. The apparatus for surgical removal of a ring according to claim 1 , wherein:
the guide includes a groove at least as wide as a width of at least one of a cutting blade of the first blade and a cutting blade of the second blade, the groove allowing the guide to shield a wearer of the ring from the cutting blades as the first and second blades move along the length of the guide within the groove of the guide, exposing the ring to a clamping force of the cutting blades of the first and second blades.

4. The apparatus for surgical removal of a ring according to claim 1 , wherein:
a connection between the locator and the guide is a slot, the slot allowing adjustment of the second end of the guide within the second end of the locator to adjust the length of the guide, and a distance between the first guard and the second guard.

5. The apparatus for surgical removal of a ring according to claim 1 , further comprising:
a latch, which is rotatably connected to the first end of the locator; and
an indentation disposed in the side of the other one of the first guard and the second guard,
wherein a pivoting motion of the latch in a first direction hooks the latch into the indentation, securing a relative position of the locator to the other one of the first guard and the second guard, and a pivoting motion of the latch in a second direction unhooks the latch from the indentation, allowing adjustment of a position of the locator with respect to the other one of the first guard and the second guard and with respect to the guide.

6. The apparatus for surgical removal of a ring according to claim 1 , wherein:
the first guard partially encloses the first portion of the first handle in a resting position, a cutting blade of the first blade being out of view until a force is applied to the first handle, and the second guard partially encloses the first portion of the second handle in the resting position, a cutting blade of the second blade being out of view until a force is applied to the second handle.

7. The apparatus for surgical removal of a ring according to claim 1 , wherein:
the guide includes a groove at least as wide as an outermost portion of an end of at least one of the first guard and the second guard that is in contact with the guide.

8. The apparatus for surgical removal of a ring according to claim 7 , wherein:
the groove is at least 2 mm wide.

9. The apparatus for surgical removal of a ring according to claim 1 , further comprising:
a stopper connected to at least one of an end of the first guard and an end of the second guard,
wherein the stopper limits a pivoting motion of the first guard and the second guard by maintaining a minimum distance between the end of the first guard and the end of the second guard.

10. The apparatus for surgical removal of a ring according to claim 9 , wherein:
the stopper is adjustable along a length, allowing adjustment of the minimum distance between the end of the first guard and the end of the second guard.

11. The apparatus for surgical removal of a ring according to claim 1 , wherein:
the first blade and the second blade are identical and disposed symmetrically.

12. A method for surgical removal of a ring using the apparatus for surgical removal of a ring according to claim 1 , the method comprising:
inserting the guide through the ring;
connecting the guide to the locator;
connecting the guide to the first guard and the second guard;
securing the locator to one of the first guard and the second guard; and
pressing the first handle and the second handle together to press the first blade and the second blade together to cut the ring.

13. The method of claim 12 , further comprising:
adjusting the guide by sliding the guide to a desired position within the locator.

Assignees

• Nat Guard Health Affairs
• King Saud Bin Abdulaziz Univ For Health Sciences
• King Abdullah International Medical Res Center

Inventors

• Al Modhen Fayez

Classifications

• B26B13/00

  Hand shears; Scissors · CPC title

• B26B11/00

  Hand knives combined with other implements, e.g. with corkscrew, with scissors, with writing implement (combined table-ware A47G21/06) · CPC title

• B26B29/06

  Arrangements for guiding hand cutting tools (guiding equipment or arrangements for specific cutting tools, see the particular places, e.g. for hair trimming devices A45D24/36, for saw blades B27B11/02, B26B13/10) · CPC title

• B26B17/00 Primary

  Hand cutting tools {, i.e. with the cutting action actuated by muscle power} with two jaws which come into abutting contact (nail clippers or cutters A45D29/02; joints therefor B25B7/06) · CPC title