IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0577531
(2009-10-12)
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| 등록번호 |
US-8128623
(2012-03-06)
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발명자
/ 주소 |
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| 출원인 / 주소 |
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| 대리인 / 주소 |
Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
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| 인용정보 |
피인용 횟수 :
0 인용 특허 :
42 |
초록
▼
A portable, thermal cauterizing forceps device for use in surgery. The device incorporates a pair of ceramic heater elements mounted within the tips of the tines of a forceps. The forceps is used to grasp tissue or blood vessels and apply heat to effect cauterization. In the case of the first embodi
A portable, thermal cauterizing forceps device for use in surgery. The device incorporates a pair of ceramic heater elements mounted within the tips of the tines of a forceps. The forceps is used to grasp tissue or blood vessels and apply heat to effect cauterization. In the case of the first embodiment of the invention, the forceps instrument incorporates a battery and control electronics. The thermal-forceps is of a self-contained wireless, handheld disposable design. In a second embodiment of the invention, the forceps handpiece is connected to an external power source. Both embodiments of the forceps incorporate set of rapidly heating ceramic heater elements that may be composed of silicon nitride. An LED provides the operator feedback as to the operating level of the heaters and/or battery reserve. Enhancements to the second embodiment include a rechargeable power supply, variable control of the heater temperature, as well as a, digital display of the tip temperature.
대표청구항
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1. A thermocautery surgical forceps, comprising: a surgical forceps body including a pair of elongate tine members extending from the forceps body to respective opposed free end tip portions spaced from the forceps body, the tine members being mounted to the forceps body in a manner providing resili
1. A thermocautery surgical forceps, comprising: a surgical forceps body including a pair of elongate tine members extending from the forceps body to respective opposed free end tip portions spaced from the forceps body, the tine members being mounted to the forceps body in a manner providing resilient compressible movement of the tine members between a normally open position wherein the tine members are disposed in an aligned, parallel, and spaced-apart relationship and a squeezed closed position wherein the tip portions of the tine members are disposed in a confronting abutting relationship;power source leads configured to be electrically connectable to a power supply, at least one of said tip portions of the tine members comprising a heater element connected to the power source leads and said heater element having a flat, gripping and heating surface defined on an inner facing surface of said at least one of said tip portions; anda circuit board configured to supply a high initial current to the heater element for rapid heat and to supply a reduced current to said heater element for maintenance of the heat,the tine members being further configured to be squeezed together toward the squeezed closed position to grippingly, squeezably, engage tissue to be cauterized or a blood vessel to be sealed between the flat gripping and heating surface of said heater element and the opposed tip portion. 2. The thermocautery surgical forceps as defined in claim 1, further comprising an indicator configured to indicate an operative state of said heater element,wherein said circuit board is further configured to measure a battery power reserve or supply voltage and an internal resistance and a temperature of said heater element and to actuate said indicator to indicate whether the battery power reserve or supply voltage and the internal resistance and the temperature of said heater element falls within predetermined operational limits. 3. The thermocautery surgical forceps as defined in claim 1, further comprising a switch operationally electrically connected to the heater element and the power source leads and configured to automatically turn the heater element on to heat the flat, gripping and heating surface to an elevated tissue cauterizing or blood vessel sealing temperature as the tine members are moved from the normally open position to the squeezed closed position. 4. The thermocautery surgical forceps as defined in claim 1, which is sterilized and intended for one time disposable use. 5. The thermocautery surgical forceps as defined in claim 1, further comprising a rechargeable battery connected to said power source leads. 6. The thermocautery surgical forceps as defined in claim 1, further comprising a replaceable battery connected to said power source leads. 7. The thermocautery surgical forceps as defined in claim 1, further comprising an external power supply connected to said power source leads. 8. The thermocautery surgical forceps according to claim 1, wherein said flat, gripping and heating surface comprises a non-stick heating surface. 9. The thermocautery surgical forceps as defined in claim 1, further comprising a heat-resistant holster assembly configured to receive and hold the forceps body. 10. The thermocautery surgical forceps as defined in claim 1, further comprising a battery connected to said power source leads. 11. The thermocautery surgical forceps as defined in claim 1, further comprising a 110 v AC power supply connected to said power source leads. 12. The thermocautery surgical forceps as defined in claim 1, further comprising a battery; anda voltage stepper coupled to said battery and said power source leads. 13. The thermocautery surgical forceps as defined in claim 1, wherein the indicator comprises a piezoelectric speaker. 14. The thermocautery surgical forceps as defined in claim 1, wherein the circuit board is further configured to vary the initial resistance of the heater circuit to obtain heat rapidly. 15. The thermocautery surgical forceps as defined in claim 1, further comprising a neoprene spacer, wherein each of said tine members of said pair of elongate tine members are fastened to opposite sides of said neoprene spacer for a spring effect. 16. In a thermocautery device, the improvement comprising: a pair of elongate tine members having respective opposed free end tip portions, the tine members providing resilient compressible movement of the tine members between a normally open position wherein the tine members are disposed in a spaced-apart relationship and a squeezed closed position wherein the tip portions of the tine members are disposed in a confronting abutting relationship;power source leads configured to be electrically connectable to a power supply,at least one of said tip portions of the tine members comprising a heater element connected to the power source leads and said heater element having a flat, gripping surface; anda circuit board configured to supply a high initial current to the heater element for rapid heat and to supply a reduced current to said heater element for maintenance of the heat. 17. The thermocautery device of claim 16, further comprising an indicator configured to indicate an operative state of said heater element,wherein said circuit board is further configured to measure a battery power reserve or supply voltage and an internal resistance and a temperature of said heater element and to actuate said indicator to indicate whether the battery power reserve or supply voltage and the internal resistance and the temperature of said heater element falls within predetermined operational limits. 18. The thermocautery device of claim 16, further comprising a switch operationally electrically connected to the heater element and the power source leads and configured to automatically turn the heater element on to heat the flat, gripping and heating surface to an elevated tissue cauterizing or blood vessel sealing temperature as at least one tine of said pair of tine members is moved from the normally open position to the squeezed closed position. 19. The thermocautery device of claim 16, wherein said flat, gripping inner face surface comprises a non-stick heating surface.
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