Endoscopic cutting device
First Claim
1. An endoscopic cutting device comprising:
- an inner catheter including an inner wall having a distal opening formed longitudinally through the side of the inner wall, the inner wall further having a cutting blade moveably disposed thereon and biasingly extending through the opening, the cutting blade including a first cutting edge, the inner wall having a receiving member disposed thereon, the receiving member including a receiving blade having a second cutting edge, the receiving member being configured to cooperatively receive the cutting blade, wherein the first cutting edge engagingly contacts the second cutting edge to cut; and
an outer catheter including an outer wall having a proximal end and an open distal end, the open distal end being open to allow clearance for facilitating longitudinal movement of the outer catheter relative to the inner catheter, the outer wall being moveably disposed about the inner catheter, the outer wall having an aperture formed longitudinally through the side of the outer wall, the aperture being separate from the open distal end and formed proximal to the open distal end through the outer wall, the aperture of the outer wall being configured to moveably align with the distal opening of the inner wall for allowing the cutting blade to biasingly extend through the distal opening, the outer catheter being slidably retractable relative to the inner catheter to force the first cutting edge of the cutting blade inward and biasingly engage the second cutting edge of the receiving blade to cut.
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Accused Products
Abstract
An endoscopic cutting device is disclosed. The device comprises an inner catheter including an inner wall having an opening formed therethrough. The inner wall further has a cutting blade moveably disposed thereon and biasingly extends through the opening. The inner wall has a receiving member disposed thereon and is configured to cooperatively receive the cutting blade. The device further comprises an outer catheter including an outer wall moveably disposed about the inner catheter. The outer wall has an aperture formed therethrough. The aperture is configured to moveably align with the opening of the inner wall for allowing the cutting blade to biasingly extend through the opening and biasingly engage the cutting blade with the receiving member to cut.
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Citations
17 Claims
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1. An endoscopic cutting device comprising:
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an inner catheter including an inner wall having a distal opening formed longitudinally through the side of the inner wall, the inner wall further having a cutting blade moveably disposed thereon and biasingly extending through the opening, the cutting blade including a first cutting edge, the inner wall having a receiving member disposed thereon, the receiving member including a receiving blade having a second cutting edge, the receiving member being configured to cooperatively receive the cutting blade, wherein the first cutting edge engagingly contacts the second cutting edge to cut; and an outer catheter including an outer wall having a proximal end and an open distal end, the open distal end being open to allow clearance for facilitating longitudinal movement of the outer catheter relative to the inner catheter, the outer wall being moveably disposed about the inner catheter, the outer wall having an aperture formed longitudinally through the side of the outer wall, the aperture being separate from the open distal end and formed proximal to the open distal end through the outer wall, the aperture of the outer wall being configured to moveably align with the distal opening of the inner wall for allowing the cutting blade to biasingly extend through the distal opening, the outer catheter being slidably retractable relative to the inner catheter to force the first cutting edge of the cutting blade inward and biasingly engage the second cutting edge of the receiving blade to cut. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An endoscope apparatus having a cutting apparatus, the apparatus comprising:
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an endoscopic assembly for endoscopy, the assembly comprising; an insertion tube, the insertion tube having a plurality of channels through which endoscopic parts may be disposed; and a control system in mechanical and fluid communication with the insertion tube, the control system being configured to control at least one of the endoscopic parts; and an endoscopic cutting device disposed in one of the plurality of channels of the endoscopic assembly, the endoscopic cutting device comprising; an inner catheter including an inner wall having a proximal portion, a closed distal portion, and an opening formed longitudinally through a side of the inner wall adjacent the distal portion, the inner wall further having a spring loaded cutting blade disposed thereon and biasingly extending through the opening, the cutting blade including a first cutting edge, the inner wall having a receiving member disposed thereon, the receiving member including a receiving blade having a second cutting edge, the receiving member being configured to cooperatively receive the cutting blade, wherein the first cutting edge engagingly contacts the second cutting edge to cut; and
an outer catheter including an outer wall having a proximal end and an open distal end, the outer wall being slidably disposed about the inner catheter, the outer wall having an aperture formed therethrough, the aperture of the outer wall being configured to align with the opening of the inner wall, allowing the cutting blade to biasingly extend therethrough and biasingly engage the receiving member to cut,wherein the receiving member has a base for receiving the cutting blade, the receiving blade extending from the base to define a notch to receive the cutting blade, the second cutting edge of the receiving blade being configured to cooperate with the first cutting edge of the cutting blade for cutting as the cutting blade is cooperatively received in the notch. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. An endoscopic cutting device comprising:
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an inner catheter including an inner wall having a distal opening formed longitudinally through the side of the inner wall, the inner wall further having a cutting blade moveably disposed thereon and biasingly extending through the opening, the cutting blade including a first cutting edge, the inner wall having a receiving member disposed thereon, the receiving member including a base for receiving the cutting blade, the receiving member further including a receiving blade having a second cutting edge, the receiving blade extending from the base to define a notch to receive the cutting blade, the receiving member being configured to cooperatively receive the cutting blade, wherein the first cutting edge engagingly contacts the second cutting edge to cut as the cutting blade is received in the notch; and an outer catheter including an outer wall having a proximal end and an open distal end, the open distal end being open to allow clearance for facilitating longitudinal movement of the outer catheter relative to the inner catheter, the outer wall being moveably disposed about the inner catheter, the outer wall having an aperture formed longitudinally through the side of the outer wall, the aperture being separate from the open distal end and formed proximal to the open distal end through the outer wall, the aperture of the outer wall being configured to moveably align with the distal opening of the inner wall for allowing the cutting blade to biasingly extend through the distal opening, the outer catheter being slidably retractable relative to the inner catheter to force the first cutting edge of the cutting blade inward and biasingly engage the second cutting edge of the receiving blade to cut.
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Specification