STRAIGHT CUTTING TIP FOR A FULL LARGE BORE SUBCUTANEOUS IMPLANTATION INSTRUMENT

• US 20100249696A1
• Filed: 06/14/2010
• Published: 09/30/2010
• Est. Priority Date: 08/24/2000
• Status: Abandoned Application

• Current Assignee: Gust H. Bardy
• Original Assignee: Gust H. Bardy
• Inventors: Bardy, Gust H.
• Application Number:
  US12/815,364
• Publication Number:
  US 20100249696A1
• Time in Patent Office: Days
• US Class Current: 604/60
• CPC Class Codes: A61B 17/3468 for implanting or removing devices, e.g. prostheses, implants, seeds, wires devices for implanting seeds A61M37/0069
• CPC Class Codes: A61B 2017/3492 against the outside of the body
• CPC Class Codes: A61B 2560/063 Devices specially adapted for delivering implantable medical measuring apparatus
• CPC Class Codes: A61M 37/0069 Devices for implanting pellets, e.g. markers or solid medicaments for introducing of radioactive sources for interstitial radiation therapy, i.e. brachytherapy A61N5/1027
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A straight cutting tip for a full large bore subcutaneous implantation instrument is provided. An incising shaft body defines an axial bore extending continuously throughout the incising shaft body'"'"'s length. 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 is 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 is formed on each side and is progressively defined outwardly from the cutting tip to the sides of the beveled surface at the bottom surface of the incising shaft body. An attachment point is formed on the proximal end of the incising shaft body.

Claims

1. A straight 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 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.

2. A straight cutting tip according to claim 1, further comprising:

a syringe body that defines an axial bore extending continuously throughout the syringe body'"'"'s length, wherein the axial bore is open on both distal and proximal ends of the syringe body and has a non-circular cross section approximately equal to the incising shaft body'"'"'s axial bore, wherein the distal end of the syringe body is attached to the incising shaft at the attachment point.

3. A straight cutting tip according to claim 2, further comprising:

a plunger assembly comprising handle and a plunger connected by a plunger shaft with a combined length exceeding the lengths of the bores of the incising shaft body and the syringe body, wherein the plunger and plunger shaft are shaped to follow the cross sectional contour of the incising shaft body and the syringe body.

4. 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.

5. A curved cutting tip according to claim 4, wherein the curved cutting edges are further defined concave upwardly.

6. A curved cutting tip according to claim 4, further comprising:

a syringe body that defines an axial bore extending continuously throughout the syringe body'"'"'s length, wherein the axial bore is open on both distal and proximal ends of the syringe body and has a non-circular cross section approximately equal to the incising shaft body'"'"'s axial bore, wherein the distal end of the syringe body is attached to the incising shaft at the attachment point.

7. A curved cutting tip according to claim 6, further comprising:

a plunger assembly comprising handle and a plunger connected by a plunger shaft with a combined length exceeding the lengths of the bores of the incising shaft body and the syringe body, wherein the plunger and plunger shaft are shaped to follow the cross sectional contour of the incising shaft body and the syringe body.

8. 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.

9. A straight cutting tip according to claim 8, further comprising:

a syringe body that defines an axial syringe bore extending continuously throughout the syringe body'"'"'s length, wherein the axial syringe bore is open on both distal and proximal ends of the syringe body, wherein the distal end of the syringe body is attached to the incising shaft at the attachment point, and the plunger bore communicatively connected to the axial syringe bore.

10. A straight cutting tip according to claim 9, further comprising:

a plunger assembly comprising handle and a plunger connected by a plunger shaft with a combined length exceeding the lengths of the bores of the incising shaft body and the syringe body, wherein the plunger and plunger shaft are shaped to follow the cross sectional contour of the incising shaft body and the syringe body.

11. 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.

12. A curved cutting tip according to claim 11, wherein the curved cutting edges are further defined concave upwardly.

13. A curved cutting tip according to claim 11, further comprising:

a syringe body that defines an axial syringe bore extending continuously throughout the syringe body'"'"'s length, wherein the axial syringe bore is open on both distal and proximal ends of the syringe body, wherein the distal end of the syringe body is attached to the incising shaft at the attachment point, and the plunger bore communicatively connected to the axial syringe bore.

14. A curved cutting tip according to claim 13, further comprising:

a plunger assembly comprising handle and a plunger connected by a plunger shaft with a combined length exceeding the lengths of the bores of the incising shaft body and the syringe body, wherein the plunger and plunger shaft are shaped to follow the cross sectional contour of the incising shaft body and the syringe body.

15. 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.

16. An upwardly curved cutting tip according to claim 15, further comprising:

a syringe body concavely curved on a top surface in an arc approximately equal to the incising shaft'"'"'s arc and that defines an axial bore extending continuously throughout the syringe body'"'"'s length, wherein the axial bore is open on both distal and proximal ends of the syringe body and has a non-circular cross section approximately equal to the incising shaft body'"'"'s axial bore, wherein the distal end of the syringe body is attached to the incising shaft at the attachment point.

17. An upwardly curved cutting tip according to claim 16, further comprising:

a plunger assembly comprising handle and a plunger connected by a curved plunger shaft curved on a top surface in an arc approximately equal to the incising shaft'"'"'s arc with a combined length exceeding the lengths of the bores of the incising shaft body and the syringe body, wherein the plunger and plunger shaft are shaped to follow the cross sectional contour of the incising shaft body and the syringe body.

18. 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.

19. 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.

20. A cutting tip according to claim 19, wherein the simple closed polygon comprises one of a rectangular, square, pentagonal, hexagonal, heptagonal, and octagonal shape.