Subcutaneous implantation instrument with a scissored dissecting tool assembly and method of construction

• US 8,435,208 B2
• Filed: 05/05/2010
• Issued: 05/07/2013
• Est. Priority Date: 08/24/2000
• Status: Expired due to Fees

• Current Assignee: Cardiac Science Operating Company (Cardica Incorporated)
• Original Assignee: Cardiac Science Operating Company (Cardica Incorporated)
• Inventors: Bardy, Gust H.
• Primary Examiner(s): Lucchesi, Nicholas
• Assistant Examiner(s): Price, Nathan R
• Application Number:
  US12/774,191
• Publication Number:
  US 20100217298A1
• Time in Patent Office: 1,098 Days
• Field of Search: 604 57- 65, 604104-106, 604/160, 604/161
• 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 subcutaneous implantation instrument with a scissored dissecting tool assembly is provided. An incising shaft longitudinally defines a substantially non-circular bore continuously formed to communicatively receive an implantable object and further includes a beveled cutting blade formed on a distal end. A dissecting tool assembly is included. A longitudinally split needle tip forms a pair of blades with cutting edges progressively defined outwardly from the needle tip. A pair of handles are each distally attached to one of the blades and pivotably coupled and disposed for transverse operation, wherein the dissecting tool assembly is removably affixable to the distal end of the incising shaft. A delivery mechanism longitudinally defines a substantially non-circular bore continuously formed to deploy the implantable object into the incising shaft.

Claims

1. A subcutaneous implantation instrument with a scissored dissecting tool assembly, comprising:

an incising shaft longitudinally defining a substantially non-circular bore continuously formed to communicatively receive an implantable object and further comprising a beveled cutting blade formed on a distal end;

a dissecting tool assembly, comprising;

a longitudinally split needle tip forming a pair of blades with cutting edges progressively defined outwardly from the needle tip;

a pair of handles that are each attached to one of the blades at a distal end of each handle and pivotably coupled and disposed for operation transverse to the needle tip, wherein the dissecting tool assembly is removably affixable to the distal end of the incising shaft; and

a delivery mechanism longitudinally defining a substantially non-circular bore continuously formed to deploy the implantable object into the incising shaft.

2. A subcutaneous implantation instrument in accordance with claim 1, wherein the blades are formed with at least one of straight, concave, and convex surfaces.

3. A subcutaneous implantation instrument in accordance with claim 1, wherein the longitudinally split needle tip is formed into a curve arced towards the incising shaft.

4. A method for constructing a subcutaneous implantation instrument with a scissored dissecting tool assembly, comprising:

fashioning an incising shaft to longitudinally define a substantially non-circular bore continuously formed to communicatively receive an implantable object and further comprising a beveled cutting blade formed on a distal end;

assembly a dissecting tool assembly, comprising;

providing a longitudinally split needle tip to form a pair of blades with cutting edges progressively defined outwardly from the needle tip;

including a pair of handles that are each attached to one of the blades at a distal end of each handle and pivotably coupled and disposed for operation transverse to the needle tip, wherein the dissecting tool assembly is removably affixable to the distal end of the incising shaft; and

providing a delivery mechanism to longitudinally define a substantially non-circular bore continuously formed to deploy the implantable object into the incising shaft.

5. A method in accordance with claim 4, wherein the blades are formed with at least one of straight, concave, and convex surfaces.

6. A method in accordance with claim 4, wherein the longitudinally split needle tip is formed into a curve arced towards the incising shaft.