Surgical staple-clip and applier
First Claim
1. A medical device to constrict or occlude a body tissue or vessel, comprising:
- a first tissue-engaging member having a first end, a second end opposite the first end, opposed walls and a first connecting wall defining a first elongate channel extending from the first end to the second end and the first elongate channel being open at the first end and the second end;
a second tissue-engaging member opposed to the first tissue-engaging member having a first end, a second end opposite the first end, opposed walls and a second connecting wall defining a second elongate channel extending from the first end to the second end and the second elongate channel being open at the first end and the second end; and
a securing member for securing the first and the second tissue-engaging members such that front faces of the first and the second connecting walls are opposed to each other, the securing member comprising a spring clip generating a securing force;
wherein the securing member has a distal-most face defining a tapered surface that is slidably advanceable into the first and the second elongate channels to securely clamp the first and the second tissue-engaging members around the body tissue or vessel.
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Accused Products
Abstract
A surgical staple-clip including a clip component and a securing member is used in a wide range of surgical procedures. The staple-clip may be introduced to a surgical site in an un-assembled condition through a small port or trocar. An applier for the staple-clip comprising a pair of opposed jaw-like channels is provided to position and apply the clip component and the securing member. The clip component is positioned around a target tissue and is compressed or clamped upon the tissue using only the force required for a specific surgical procedure such as occlusion, ligation or fixation. When the clip component is properly applied, the securing member is urged forward and over the clip component to secure the staple-clip. The clip component may include traction enhancement features such as surface interruptions, bumps, valleys and ridges. With the staple-clip of the invention, the force required to constrict or occlude the tissue is separate from the force required to secure and maintain the staple-clip in position and, as a result, the body tissue is not over-compressed and nourishment to the body tissue is maintained. Other aspects of the invention include thumb actuated clip appliers for use in hand assisted laparoscopy (HAL) In one embodiment, a clip applier includes a handle and a thumb actuated mechanism that is used to slidably release clips onto a body tissue or vessel by sliding the thumb actuated mechanism forward and backward using only one hand. In another aspect of the invention, a two-stage clip is disclosed having a clip component and a staple component for securing the clip after it has been properly positioned.
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Citations
21 Claims
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1. A medical device to constrict or occlude a body tissue or vessel, comprising:
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a first tissue-engaging member having a first end, a second end opposite the first end, opposed walls and a first connecting wall defining a first elongate channel extending from the first end to the second end and the first elongate channel being open at the first end and the second end; a second tissue-engaging member opposed to the first tissue-engaging member having a first end, a second end opposite the first end, opposed walls and a second connecting wall defining a second elongate channel extending from the first end to the second end and the second elongate channel being open at the first end and the second end; and a securing member for securing the first and the second tissue-engaging members such that front faces of the first and the second connecting walls are opposed to each other, the securing member comprising a spring clip generating a securing force; wherein the securing member has a distal-most face defining a tapered surface that is slidably advanceable into the first and the second elongate channels to securely clamp the first and the second tissue-engaging members around the body tissue or vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A medical device to constrict or occlude a body tissue or vessel, comprising:
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a first tissue-engaging portion having a first end and a second end opposite the first end and a first face extending from the first end to the second end, the first face including a plurality of tissue penetrating elements or protrusions; a second tissue-engaging portion opposing the first tissue-engaging portion having a first end and a second end opposite the first end and a second face extending from the first end to the second end, the second face including a plurality of tissue penetrating elements or protrusions; and a spring clip comprising a distal-most face defining a tapered surface slidably advanceable over the first and the second tissue-engaging portions, the spring clip providing a substantially uniform securing pressure along the first tissue-engaging portion from the first end to the second end of the first tissue-engaging portion and along the second tissue-engaging portion from the first end to the second end of the second tissue-engaging portion. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification