TROCAR
First Claim
Patent Images
1. A trocar comprising:
- an inner needle unit including optical observing means; and
puncture-assisting means provided on an outer peripheral face of the inner needle unit, for assisting body wall puncture of the inner needle unit, whereinthe puncture-assisting means has at least one of ultrasonic energy applying means and electric energy applying unit.
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Accused Products
Abstract
A trocar is provided with an inner needle unit including an optical observing device and a puncture-assisting device that is provided on an outer peripheral face of the inner needle unit and assists puncture of the inner needle unit into a body cavity, where the puncture-assisting device includes at least one of an ultrasonic energy applying device and an electric energy applying device.
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Citations
29 Claims
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1. A trocar comprising:
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an inner needle unit including optical observing means; and puncture-assisting means provided on an outer peripheral face of the inner needle unit, for assisting body wall puncture of the inner needle unit, wherein the puncture-assisting means has at least one of ultrasonic energy applying means and electric energy applying unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A trocar comprising:
- an inner needle that is inserted into a body cavity wall in a puncture manner; and
a cannula in which the inner needle is inserted to allow insertion and withdrawal thereof and which is inserted and placed in the body cavity wall, wherein the inner needle has a puncture needle that is transmitted with vibration energy or electric energy to puncture the body cavity wall and a sheath that allows insertion of the puncture needle on a center axis thereof, and the sheath has observation optical means and illuminating means emitting illumination light for illuminating a subject that are arranged around a distal end portion of the puncture needle. - View Dependent Claims (14)
- an inner needle that is inserted into a body cavity wall in a puncture manner; and
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15. A trocar comprising:
- an inner needle that is inserted into a body cavity wall in a puncture manner; and
a cannula in which the inner needle is removably inserted and which is inserted and placed in the body cavity wall, wherein the inner needle has a puncture needle that is transmitted with vibration energy or electric energy to puncture the body cavity wall and a sheath that allows insertion of the puncture needle on a center axis thereof, and the puncture needle includes observation optical means and illuminating means that emits illumination light for illuminating a subject at a distal end portion thereof. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 28)
- an inner needle that is inserted into a body cavity wall in a puncture manner; and
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23. A trocar comprising:
- an inner needle that is inserted into a body cavity wall in a puncture manner; and
a cannula in which the inner needle is removably inserted and which is inserted and placed in the body cavity wall, wherein the inner needle has a puncture needle that is transmitted with vibration energy or electric energy to puncture the body cavity wall and a sheath that allows insertion of the puncture needle on a center axis thereof, and the sheath includes a unit provided with observation optical means and illuminating means that emits illumination light and disposed inside a distal end portion of the sheath at a central position thereof. - View Dependent Claims (24, 25, 26, 27, 29)
- an inner needle that is inserted into a body cavity wall in a puncture manner; and
Specification