Bipolar forceps

• US 4,890,610 A
• Filed: 06/05/1989
• Issued: 01/02/1990
• Est. Priority Date: 05/15/1988
• Status: Expired due to Term

• Current Assignee: Kirwan, Lawrence T. Jr., Lawrence T. Kirwan Sr
• Original Assignee: Kirwan, Lawrence T. Jr., Lawrence T. Kirwan Sr
• Inventors: Kirwan, Lawrence T. Sr., Kirwan, Lawrence T. Jr.
• Primary Examiner(s): Nelli, Raymond A.
• Application Number:
  US07/361,837
• Time in Patent Office: 211 Days
• Field of Search: 128/303.13, 128/303.19, 128/321, 200/61.58 R, 200/157, 219/234
• US Class Current: 606/51
• CPC Class Codes: A61B 18/1402 Probes for open surgery
• CPC Class Codes: A61B 18/1442 Probes having pivoting end effectors, e.g. forceps

Abstract

This application discloses a pair of bipolar forceps for use in medicine the forceps having one piece blade portions, the center of which is coated with a plastic material and which has an integral connector formed at one end of the overcoated plastic and a terminal end of each of the blade portions.

Claims

1. A microsurgical bipolar forceps comprising elongated, unitary, coined, first and second tine portions and a first and second housing portions, each of tine portions having a first and second terminal ends and the first tine portion having a first blade, and the second tine portion having a second blade, each of the first and second blades including a front terminal end and a rear terminal end and the first blade positioned within the first housing and the second blade positioned within the second housing, the first terminal end providing a tip and the second terminal end providing a connector pin, the tip extending longitudinally from the front terminal end and the connector pin extending longitudinally from the rear terminal end, the first and second tine portions being formed of a material capable of carrying an electric current, the first housing portion overmolded and covering the first blade and the second housing portion overmolded and covering the second blade and the first and second housing portions formed of a material that will distort the first and second tine portions when the forceps are exposed to steam at 250 degrees F. and pressure for a period of twenty minutes, the connector pin of each blade adapted to engage an electric socket.

2. The microsurgical bipolar forceps set forth in claim 1 wherein the blades form the electric connector means.

3. The microsugical bipolar forceps set forth in claim 1 wherein the first and second tine portions are in spaced relation to each other.

4. The microsurgical bipolar forceps set forth in claim 3 wherein the first and second tine portions are in parallel relation to each other.

5. The microsurgical bipolar forceps set forth in claim 1 wherein the housing of each of the first and second tine portions includes an externally arced body portion.

6. The microsurgical bipolar forceps set forth in claim 5 wherein the body portions have striations formed therein.

7. The microsurgical bipolar forceps set forth in claim 5 wherein the blades form the electric connector means.

8. A microsurgical bipolar forceps as recited in claim 1, wherein the first and second housing portions formed of a material that will distort the first and second tine portions when the forceps are exposed to steam at 270 degrees F. and pressure for a period of ten minutes.

9. A method of forming a pair of disposable microsurgical bipolar forceps, the bipolar forceps including elongated, unitary, first and second tine portions, each of the tine portions having first and second terminal ends and the first tine portion having a first blade and the second tine portion having a second blade, the method comprising the steps of:

coining, the first and second blade portions, placing each of the first and second blade portions in a mold and overmolding the first and second blade portions with a plastic material, the plastic material being one that will distort the first and second tine portions when the forceps are subject to heat above 250 degrees F. and pressure for a period of twenty minutes, the overmolding providing exposed first and second terminal ends, the first terminal end forming a tip, the second terminal end formed into a connector pin.

10. The method of forming a pair of microsurgical bipolar set forth in claim 9 further comprising the step of:

the forming the area adjacent the connector pins into a connector portion.

11. A method of forming a pair of disposable microsurgical bipolar forceps as recited in claim 9, wherein the first and second housing portions formed of a material that will distort the first and second tine portions when the forceps are exposed to steam at 270 degrees F. and pressure for a period of ten minutes.