Sewing machine
First Claim
1. A sewing machine for forming stitches in a substrate, comprising thread-carrying means for passing a thread into the substrate from one side thereof at a first location and for withdrawing the thread from the substrate at a second location spaced from the first location, said means being being remotely operable solely from the said one side of the substrate, means defining a slot open toward the substrate, a channel communicating with said slot to provide suction thereto for drawing a double layer of substrate into the slot, the thread-carrying means being disposed for movement from a retracted position to an extended position, in which movement that carries a loop of the thread into and through the said double layer, and further comprising means for catching the said loop after it has passed through the double layer of substrate and holding the said loop while the thread-carrying means is withdrawn to the retracted position.
0 Assignments
0 Petitions
Accused Products
Abstract
A sewing machine for forming stitches in a substrate, for example, in forming stitches in tissue during surgery, comprises a needle for passing thread into the substrate from one side thereof at a first location and for withdrawing the thread from the substrate at a second location spaced from the first location. The needle is removably operable solely from the said one side of the substrate. A stapling machine is also disclosed operating on similar principles for similar purposes.
-
Citations
11 Claims
- 1. A sewing machine for forming stitches in a substrate, comprising thread-carrying means for passing a thread into the substrate from one side thereof at a first location and for withdrawing the thread from the substrate at a second location spaced from the first location, said means being being remotely operable solely from the said one side of the substrate, means defining a slot open toward the substrate, a channel communicating with said slot to provide suction thereto for drawing a double layer of substrate into the slot, the thread-carrying means being disposed for movement from a retracted position to an extended position, in which movement that carries a loop of the thread into and through the said double layer, and further comprising means for catching the said loop after it has passed through the double layer of substrate and holding the said loop while the thread-carrying means is withdrawn to the retracted position.
-
11. A sewing machine for forming stitches in a substrate, comprising thread-carrying means for passing a thread into the substrate from one side thereof at a first location and for withdrawing the thread from the substrate at a second location spaced from the first location, the said means being remotely operable solely from the said one side of the substrate, the machine being mounted on the end of an endoscope.
Specification