Tissue removal system with retention mechanism
First Claim
1. A tissue removal system, comprising:
- a handheld housing;
an outer shaft comprising a distal portion and a proximal portion, the proximal portion coupled to the handheld housing;
a distal sheath coupled to the distal portion of the outer shaft;
a motor;
an inner shaft including a lumen having a distal opening, the inner shaft coupled to the motor, the inner shaft being located partially within the outer shaft and partially within the distal sheath, the distal sheath including a cylindrical portion extending circumferentially about the inner shaft;
a tip portion having a proximal end, a side opening, and a lumen extending therebetween, the tip portion coupled to a distal portion of the inner shaft; and
an elongate member slidably coupled to the lumen of the inner shaft and the lumen of the tip portion, the elongate member configured to slidably extend through the tip portion, the elongate member having a retracted configuration and an extended configuration,wherein the distal sheath comprises at least one element that engages the tip portion to couple the tip portion to the distal sheath.
3 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods for minimally invasive discectomy procedures are described herein. In some variations, a tissue removal system may comprise a handheld housing, an outer shaft comprising a distal portion and a proximal portion coupled to the handheld housing, a distal sheath coupled to the distal portion of the outer shaft, a motor, an inner shaft coupled to the motor, where the inner shaft is located partially within the outer shaft and partially within the distal sheath, a tip portion coupled to a distal portion of the inner shaft, and an elongate member distally extending through a distal opening of the inner shaft, the elongate member having a retracted configuration and an extended configuration, where the distal sheath comprises at least one element (e.g. at least one protrusion) that engages the tip portion to couple the tip portion to the distal sheath.
46 Citations
21 Claims
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1. A tissue removal system, comprising:
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a handheld housing; an outer shaft comprising a distal portion and a proximal portion, the proximal portion coupled to the handheld housing; a distal sheath coupled to the distal portion of the outer shaft; a motor; an inner shaft including a lumen having a distal opening, the inner shaft coupled to the motor, the inner shaft being located partially within the outer shaft and partially within the distal sheath, the distal sheath including a cylindrical portion extending circumferentially about the inner shaft; a tip portion having a proximal end, a side opening, and a lumen extending therebetween, the tip portion coupled to a distal portion of the inner shaft; and an elongate member slidably coupled to the lumen of the inner shaft and the lumen of the tip portion, the elongate member configured to slidably extend through the tip portion, the elongate member having a retracted configuration and an extended configuration, wherein the distal sheath comprises at least one element that engages the tip portion to couple the tip portion to the distal sheath. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A tissue removal system, comprising:
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a handheld housing; an outer shaft comprising a distal portion and a proximal portion coupled to the handheld housing; a distal sheath coupled to the distal portion of the outer shaft; a motor; an inner shaft including a lumen having a distal opening, the inner shaft coupled to the motor, the inner shaft being located partially within the outer shaft and partially within the distal sheath, the distal sheath including a cylindrical portion extending circumferentially about the inner shaft; a tip portion having a proximal end a side openg and a lumen extending therebetween the tip portion coupled to a distal portion of the inner shaft; a stop member coupled to the tip portion; and an elongate member slidably coupled to the lumen of the inner shaft and the lumen of the tip portion, the elongate member configured to slidably extend through the tip portion, the elongate member having a retracted configuration and an extended configuration. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A tissue removal system, comprising:
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a handheld housing; an outer shaft comprising a distal portion and a proximal portion coupled to the handheld housing; a distal sheath coupled to the distal portion of the outer shaft; a motor; an inner shaft including a lumen having a distal opening, the inner shaft coupled to the motor, the inner shaft being located partially within the outer shaft and partially within the distal sheath, the distal sheath including a cylindrical portion extending circumferentially about the inner shaft; a tip portion having a proximal end, a side opening, and a lumen extending therebetween, the tip portion coupled to a distal portion of the inner shaft, the tip portion including a stop member; an elongate member slidably coupled to the lumen of the inner shaft and the lumen of the tip portion, the elongate member configured to slidably extend through the side opening of the tip portion, the elongate member having a retracted configuration and an extended configuration, wherein the stop member of the tip portion is configured to limit proximal movement by the inner shaft.
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Specification