INSERTION ASSEMBLY FOR AN ELECTRICAL STIMULATION SYSTEM AND RELATED METHODS OF USE
First Claim
1. An insertion assembly for assisting implantation of at least one lead into a patient, the insertion member comprising:
- an insertion needle configured and arranged for advancing into the patient, the insertion needle having an outer surface; and
a sheath having a proximal end with a first diameter, a distal end with a second diameter, and a lumen extending between the proximal and distal ends, the sheath radially expandable from a non-expanded state to an expanded state that is rigid enough to retract surrounding patient tissue when the sheath is inserted into the patient during implantation, the sheath configured and arranged for removably coupling with the insertion needle while the insertion needle is being advanced into the patient, wherein when the sheath is coupled to the insertion needle the sheath is disposed over at least a portion of the outer surface of the insertion needle, and wherein when the sheath is in an expanded state the first and second diameters are each large enough to concurrently receive at least one of a paddle lead or at least two percutaneous leads.
1 Assignment
0 Petitions
Accused Products
Abstract
An insertion assembly for assisting implantation of at least one lead into a patient includes an insertion needle and a sheath. The sheath removably couples with the insertion needle while the insertion needle is being advanced into the patient. When the sheath is coupled to the insertion needle, the sheath is disposed over at least a portion of an outer surface of the insertion needle. The sheath is radially expandable from a non-expanded state to an expanded state that is rigid enough to retract surrounding patient tissue when inserted into the patient. When the sheath is in an expanded state, first and second diameters of the sheath at opposing ends of the sheath are each large enough to concurrently receive at least one of a paddle lead or at least two percutaneous leads.
13 Citations
22 Claims
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1. An insertion assembly for assisting implantation of at least one lead into a patient, the insertion member comprising:
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an insertion needle configured and arranged for advancing into the patient, the insertion needle having an outer surface; and a sheath having a proximal end with a first diameter, a distal end with a second diameter, and a lumen extending between the proximal and distal ends, the sheath radially expandable from a non-expanded state to an expanded state that is rigid enough to retract surrounding patient tissue when the sheath is inserted into the patient during implantation, the sheath configured and arranged for removably coupling with the insertion needle while the insertion needle is being advanced into the patient, wherein when the sheath is coupled to the insertion needle the sheath is disposed over at least a portion of the outer surface of the insertion needle, and wherein when the sheath is in an expanded state the first and second diameters are each large enough to concurrently receive at least one of a paddle lead or at least two percutaneous leads. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An insertion assembly for assisting implantation of at least one lead into a patient, the insertion assembly comprising:
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a guidewire configured and arranged for insertion into the patient; an insertion needle configured and arranged for advancing into a patient via the guidewire, the insertion needle having a proximal end and a distal end, the insertion needle defining a lumen extending between the proximal and distal ends, the lumen configured and arranged to receive the guidewire; a tissue-separating member having a proximal end, a distal end, and an outer surface, the tissue-separating member defining a lumen extending between the proximal and distal ends, the lumen configured and arranged for receiving the guidewire; and a sheath having a proximal end with a first diameter, a distal end with a second diameter, and a longitudinal length, the sheath defining a lumen extending between the proximal and distal ends, the sheath radially expandable from a non-expanded state to an expanded state that is rigid enough to retract surrounding patient tissue when the sheath is inserted into the patient during implantation, the sheath configured and arranged for removably coupling with the tissue-separating member while the tissue-separating member is being advanced into the patient, wherein when the sheath is coupled to the tissue-separating member the sheath is disposed over at least a portion of the outer surface of the tissue-separating member, and wherein when the sheath is in an expanded state the first and second diameters are each large enough to concurrently receive at least one of a paddle lead or at least two percutaneous leads. - View Dependent Claims (21, 22)
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Specification