Set of surgical instruments for carpal tunnel surgery

• US 20040054378A1
• Filed: 09/17/2002
• Published: 03/18/2004
• Est. Priority Date: 09/17/2002
• Status: Abandoned Application

• Current Assignee: Cher-Chung Yang
• Original Assignee: Cher-Chung Yang
• Inventors: Yang, Cher-Chung
• Application Number:
  US10/244,553
• Publication Number:
  US 20040054378A1
• Time in Patent Office: Days
• US Class Current: 606/191
• CPC Class Codes: A61B 17/320036 adapted for use within the carpal tunnel
• 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 2017/320052 Guides for cutting instruments

Abstract

A set of surgical instruments for carpal tunnel surgery includes a group of differently-sized dilators for progressively dilating a carpal tunnel of a patient. A pair of guides is adapted to be inserted in the dilated carpal tunnel. Each of the guides has a trough defining a first longitudinal and a second longitudinal groove, and the trough is formed with a rear handle defining a cavity open to the first longitudinal groove. A group of surgical knives is each movable along the second longitudinal groove of the guide for cutting. Each of the surgical knives is provided with a shank in a zigzag configuration, and the shank has a rear end formed with a grip and a front end formed with an angled head.

Claims

1. A set of surgical instruments for carpal tunnel surgery, comprising:

a group of differently-sized dilators (10, 11, 12, 13) for progressively dilating a carpal tunnel of a patient from the wrist to the palm;

at least one guide (30, 30′

) designed to be inserted in said carpal tunnel after proper dilation, said at least one guide (30, 30′

) having a trough (31, 31′

) defining a first longitudinal groove (311, 311′

) and a second longitudinal groove (312, 312′

), said trough (31, 31′

) being formed with a rear handle (32, 32′

) defining a cavity open to said first longitudinal groove (311, 311′

);

a group of surgical knives (20, 21) each movable along said second longitudinal groove (312) of said guide (30) for cutting, each of said surgical knives (20, 21) being provided with a shank (201) in a zigzag configuration, said shank (201) having a rear end formed with a grip (202) and a front end formed with an angled head (203).

2. The set of surgical instruments as claimed in claim 1, wherein said second longitudinal groove (312, 312′

) extends through the full length of said rear handle (32, 32′

).

3. The set of surgical instruments as claimed in claim 1, wherein said group of dilators (10, 11, 12, 13) includes four differently-sized dilators (10, 11, 12, 13), and wherein each of three of said dilators (10, 11, 12, 13) has an oval section.

4. The set of surgical instruments as claimed in claim 3, wherein said group of surgical knives (20, 21) includes a first knife (20) having a straight blade and a second knife (21) having a hooked blade.

5. The set of surgical instruments as claimed in claim 4, wherein said hooked blade of said second knife (21) has a blunt outer edge.