Straight cutting tip for a full large bore subcutaneous implantation instrument

A curved cutting tip for a full large bore subcutaneous implantation instrument, comprising:

• an incising shaft body that defines an axial bore extending continuously throughout the incising shaft body's length, wherein the axial bore is open on both distal and proximal ends of the incising shaft body and has a non-circular cross section of at least five millimeters;
• a beveled surface transversely formed beginning on a top surface and ending on a bottom surface of the incising shaft body;
• a cutting tip with a pair of longitudinal curved cutting edges formed on each side and progressively defined concave outwardly from the cutting tip to the sides of the beveled surface at the bottom surface of the incising shaft body;
• and
• an attachment point formed on the proximal end of the incising shaft body.

A straight cutting tip for a partial large bore subcutaneous implantation instrument, comprising:

• an incising shaft body that defines an axial bore extending part way through the incising shaft body's length and a plunger bore communicatively connected to the axial bore, wherein the axial bore is open on only a distal end of the incising shaft body and has a non-circular cross section of at least five millimeters, and the plunger bore is open on only a proximal end of the incising shaft body;
• a beveled surface transversely formed beginning on a top surface and ending on a bottom surface of the incising shaft body;
• a cutting tip with a pair of longitudinal straight cutting edges formed on each side and progressively defined outwardly from the cutting tip to the sides of the beveled surface at the bottom surface of the incising shaft body;
• and
• an attachment point formed on the proximal end of the incising shaft body.

A curved cutting tip for a partial large bore subcutaneous implantation instrument, comprising:

• an incising shaft body that defines an axial bore extending part way through the incising shaft body's length and a plunger bore communicatively connected to the axial bore, wherein the axial bore is open on only a distal end of the incising shaft body and has a non-circular cross section of at least five millimeters, and the plunger bore is open on only a proximal end of the incising shaft body;
• a beveled surface transversely formed beginning on a top surface and ending on a bottom surface of the incising shaft body;
• a cutting tip with a pair of longitudinal curved cutting edges formed on each side and progressively defined concave outwardly from the cutting tip to the sides of the beveled surface at the bottom surface of the incising shaft body;
• and
• an attachment point formed on the proximal end of the incising shaft body.

An upwardly curved cutting tip for a full large bore subcutaneous implantation instrument, comprising:

• an incising shaft body concavely curved on a top surface in an arc of approximately 20° that defines an axial bore extending continuously throughout the incising shaft body's length, wherein the axial bore is open on both distal and proximal ends of the incising shaft body and has a non-circular cross section of at least five millimeters;
• a beveled surface transversely formed beginning on the top surface and ending on a bottom surface of the incising shaft body;
• a cutting tip with a pair of longitudinal straight cutting edges formed on each side and progressively defined outwardly from the cutting tip to the sides of the beveled surface at the bottom surface of the incising shaft body;
• and
• an attachment point formed on the proximal end of the incising shaft body.

A cutting tip for a large full bore subcutaneous implantation instrument with penetration limiting mechanism, comprising:

• an incising shaft body that defines an axial bore extending continuously throughout the incising shaft body's length, wherein the axial bore is open on both distal and proximal ends of the incising shaft body and has a non-circular cross section of at least five millimeters;
• a stopping flange mounted on a bottom surface of the incising shaft body at an angle of between approximately 30° and 60° bent in a proximal direction;
• a beveled surface transversely formed beginning on a top surface and ending on the bottom surface of the incising shaft body;
• a cutting tip with a pair of longitudinal straight cutting edges formed on each side and progressively defined outwardly from the cutting tip to the sides of the beveled surface at the bottom surface of the incising shaft body;
• and
• an attachment point formed on the proximal end of the incising shaft body.

A cutting tip for a polygonal large bore subcutaneous implantation instrument, comprising:

• an incising shaft body that defines an axial bore extending continuously throughout the incising shaft body's length, wherein the axial bore is open on both distal and proximal ends of the incising shaft body and has a cross section in the shape of a simple closed polygon with a height of at least five millimeters;
• a beveled surface transversely formed beginning on a top surface and ending on a bottom surface of the incising shaft body;
• a cutting tip with a pair of longitudinal straight cutting edges formed on each side and progressively defined outwardly from the cutting tip to the sides of the beveled surface at the bottom surface of the incising shaft body;
• and
• an attachment point formed on the proximal end of the incising shaft body.