Fingerstall-cannulated guide for fast and accurate guide wire positioning

• US 9,549,771 B1
• Filed: 11/28/2013
• Issued: 01/24/2017
• Est. Priority Date: 11/28/2013
• Status: Expired due to Fees

• Current Assignee: Emily Juan-Jie Ren, Weiping Ren, Xiao Wei Yu
• Original Assignee: Emily Juan-Jie Ren, Weiping Ren, Xiao Wei Yu
• Inventors: Yu, Xiao Wei, Ren, Emily Juan-Jie, Ren, Weiping
• Primary Examiner(s): Lawson, Matthew
• Assistant Examiner(s): SIPP, AMY R.
• Application Number:
  US14/092,987
• Time in Patent Office: 1,153 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/1697 specially adapted for wire insertion
• CPC Class Codes: A61B 17/17 Guides or aligning means for drills , mills, pins or wires
• CPC Class Codes: A61B 17/1717 for applying intramedullary nails or pins
• CPC Class Codes: A61B 17/1764 for the knee
• CPC Class Codes: A61B 17/846 Nails or pins, i.e. anchors without movable parts, holding by friction only, with or without structured surface A61B17/72, A61B17/86 take precedence
• CPC Class Codes: A61B 17/848 Kirschner wires, i.e. thin, long nails
• CPC Class Codes: A61B 17/88 Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices A61B17/7074 takes precedence
• CPC Class Codes: A61B 17/8897 Guide wires or guide pins
• CPC Class Codes: A61B 17/90 Guides therefor
• CPC Class Codes: A61B 2017/00438 connectable to a finger
• CPC Class Codes: A61B 90/53 connected to the surgeon's body, e.g. by a belt

Abstract

The present invention provides a fingerstall-cannulated guide device for accurate and efficient guide wire placement for antegrade femoral nailing systems. The said device comprises a fingerstall with a cannulated guide connected with or without a threaded guide wire. Using this device, surgeons can determine the entry point for the guide wire fast and accurately by tactile hand-eye coordination. After correct entry point is obtained, the guide wire is advanced and the fingerstall-cannulated guide can be easily detached. The device and method can accomplish the following: (1) reduction of the surgery time; (2) reduction of the radiation exposure times, and (3) reduction of the soft tissue damage during surgery. The device is also beneficial for use in fastening together any or all portions of bone surrounding a fracture site.

Claims

1. A fingerstall-cannulated guide device comprises:

a fingerstall attached with a cannulated guide with or without a threaded guide wire wherein the cannulated guide is made of metal and/or other materials, an inner diameter of the fingerstall is between 2 mm and 5 mm, a length of the cannulated guide can vary, and the cannulated guide can be rotatable; and

wherein the rotatable cannulated guide comprises the cannulated guide connected with a rotating head and mounting parts to fix the rotating head to the fingerstall;

wherein the mounting parts comprise an outer cylindrical fingerstall groove for rotating head insertion, a bulkhead, and screws.

2. The device of claim 1, wherein the fingerstall is made of metal and/or other materials;

an inner diameter of the fingerstall is sized to fit fingers of a surgeon; and

a length of the fingerstall is sized such that there is no interference with free movement of finger joints during operation.

3. The device of claim 1, wherein a shape of the fingerstall is round or oval, or any other types, and the fingerstall can be fully enclosed or semi-enclosed.

4. The device of claim 1, wherein an inner wall of the cannulated guide can be partially or totally threaded for attachment of the guide wire before use the inner wall of the cannulated guide can be smooth and no guide wire is attached and the guide wire can be inserted into the cannulated guide during operation.

5. A fingerstall-cannulated guide device comprises:

a fingerstall attached with a cannulated guide with or without a threaded guide wire inside;

wherein the cannulated guide is made of metal and/or the other materials, and inner diameter of the fingerstall is between 2 mm and 5 mm, a length of the cannulated guide can also vary, and the cannulated guide can be rotatable; and

wherein a rotating head can rotate freely or the rotation can be finely controlled by a setting in a range from 0 to 360°

C.