Improved Slitting Tools

 

Slitting tools are used in a variety of different processes. From punching a sheet to making a hole in a material to slitting a tubular body, they play a crucial role in many processes. They must endure a wide range of thicknesses, unbalanced loads, and high-speed operation. Slitting line These challenges require robust, dependable tools. Thankfully, there are new tools on the market that address these issues.

A slitting tool includes a cutting member, a channel, and a nose portion adapted to provide at least part of the channel. The cutting member has a shallow angle of 15 and 45 degrees, resulting in a lower slitting force and a smoother action.

The slitting tool may also have a gripping surface adapted to receive the user’s thumb or another finger. During the slitting process, the thumb of the user may apply downward pressure to maintain the IMD within the channel. This helps minimize lead damage, ensures a fixed relationship between the slitting tool and the introducer, and prevents relative movement of the slitting tool to the lead.

An overmolding surface is provided, which is selected to provide a tacky surface for retention of the IMD during the slitting process. The overmolding surface may be a low-durometer polymer or aromatic polyurethane. If desired, the surface may be textured.

In addition, the slitting tool may include a channel that extends through a portion of the recessed area on the top surface of the slitting tool. The channel is formed into a “V” shape in some embodiments. Other embodiments have a stepped, semi-circular, or rounded surface. Each of these surface variations may be textured using known methods.

For enhanced control of the slitting tool, the gripping member may be adapted to be either a ring or a nose portion. Alternatively, the slitting tool can be configured to hold the lead. Depending on the design of the slitting tool, the lead can be positioned in the recessed area on the nose portion of the slitting tool or the channel on the top surface.

Additionally, the slitting tool of this invention is designed to be more ergonomic than prior art designs. Previously, users had to position their wrists unusually to grasp the slitting tool properly. Moreover, prior art clamping mechanisms could have been more intuitive, leading to unnecessary bulk and complexity. To avoid this, the slitting tool of this new invention features an intuitive and easy-to-use interface that allows the user to use the slitting tool properly.

The slitting tool of this invention may be used with an implantable medical device (IMD) of any size. It may be adapted to receive the user’s thumb or other fingers and provide a fixed relationship between the lead and the introducer. Alternatively, the slitting tools of this invention can be used with one blade.

Another aspect of the slitting tool is a recessed area of 70 on the top surface 52. Unlike prior art designs, this recessed area provides easy access to the thumb or other fingers of the user. As illustrated in FIG. 5, the recessed area may be adapted to have a ridged or textured surface.