Needle design for male transobturator sling
View Patent ↗Described are surgical instruments for use in surgical procedures, related methods, systems, and kits, the instruments including features that optionally include one or more specific dimensions, and features that may result in an ergonomic advantage during use.
1. A surgical instrument for implanting an implantable material to a pelvic region, the instrument comprising:
a handle having a longitudinal axis and an elongate width dimension normal to the longitudinal axis, the elongate width dimension defining a midplane,
a needle portion extending from the handle along the longitudinal axis, the needle portion comprising
a spacer portion connected to the handle,
a three-dimensional region connected to the spacer portion distal from the handle, and having structure in three dimensions, and comprising a needle end portion, and
a needle distal end at the distal end of the three-dimensional region, wherein the needle portion is sized and shaped to extend between an incision substantially adjacent to a patient's obturator foramen, through the obturator foramen, and to a medial incision; and
wherein the needle distal end is located at an angle between 20 to 70 degrees from the midplane when viewed along the longitudinal axis;
an angle between an axis of the needle end portion and the midplane, the angle being an acute angle defined by a needle tip, an intersection of the axis and midplane, and the longitudinal axis when viewed along the longitudinal axis, is in the range from 30 degrees to 60 degrees;
an angle between the axis of the needle end portion, and a circle having an origin at the longitudinal axis and a radius defined by the needle distal end, when viewed along the longitudinal axis, is less than 15 degrees; and
the three-dimensional region has a diameter in the range from 1.25 to 5 inches.
2. The instrument of claim 1 , wherein the three-dimensional region defines a curved portion comprising a needle end portion, and an axis of the needle end portion lies in a plane orthogonal to the longitudinal axis of the tool.
3. The instrument of to claim 1 , wherein the three-dimensional region comprises a portion comprising a spiral, helix, or partial helix.
4. The instrument of claim 1 , wherein a terminal inch of the needle end portion comprises a curve.
5. The instrument of claim 1 , designed for use in a male transobturator sling installation procedure, wherein
the needle portion is sized and shaped to extend between an incision substantially adjacent to a patient's obturator foramen, through the obturator foramen, and to a perineal incision,
the three-dimensional region has a length in the range from 2.2 to 4 inches and a diameter in the range from 2.3 to 5 inches, and
the three-dimensional region defines a helix that includes an axis of a needle end portion within a plane orthogonal to the longitudinal axis of the tool.
6. The instrument of claim 1 in combination with a surgical implant for treating incontinence,
wherein the implant comprises a central support portion and two elongate end portions, and
wherein the needle end portion is adapted to be associated with an end portion of the implant.
7. A surgical instrument for implanting an implantable material to treat incontinence, the instrument comprising:
a handle,
a needle extending from the handle, the needle comprising
a spacer portion connected to the handle, and
a three-dimensional region connected to the spacer portion distal from the handle, and having structure in three dimensions including a needle distal end at a distal end of a curved portion, and a needle end portion,
wherein
the needle is sized and shaped to extend between an incision substantially adjacent to a patient's obturator foramen, through the obturator foramen, and to a perineal incision;
the three-dimensional region has a length in the range from 1.25 to 5 inches; wherein
an angle between the axis of the needle end portion, and a circle having an origin at the longitudinal axis of the spacer portion and a radius defined by the needle distal end, when viewed along the longitudinal axis, is less than 15 degrees.
8. The instrument of claim 7 , wherein the three-dimensional region defines a curved portion, and an axis of the needle end portion lies in a plane orthogonal to the longitudinal axis of the tool.
9. The instrument of to claim 7 , wherein the three-dimensional region comprises a portion comprising a spiral, helix, or partial helix.
10. The instrument of claim 7 , wherein a terminal inch of the needle end portion comprises a curve.
11. The instrument of claim 7 , designed for use in a male transobturator sling installation procedure, wherein
the three-dimensional region has a length in the range from 2.2 to 4 inches and a diameter in the range from 2.3 to 5 inches, and
the three-dimensional region defines a helix that includes an axis of a needle end portion within a plane orthogonal to the longitudinal axis of the tool.
12. The instrument of claim 7 designed for use in a male transobturator sling installation procedure, by dissecting a transobturator tissue using an outside-in dissection technique.
13. The instrument of claim 7 in combination with a surgical implant for treating incontinence,
wherein the implant comprises a central support portion and two elongate end portions, and
wherein the needle end portion is adapted to be associated with an end portion of the implant.
14. The combination of claim 13 , wherein the implant is a male urethral sling comprising one or more of a widened central support portion, reinforced edge extensions, or both.
15. The instrument of claim 7 , wherein a radial distance from a longitudinal axis of the spacer, to the needle distal end, is in the range from 0.7 to 1.4 inches.
16. A method of treating a pelvic condition, the method comprising the steps of:
creating a pair of lateral incisions substantially adjacent a patient's obturator foramen,
creating a medial incision medial to the pair of lateral incisions,
providing a surgical instrument according to claim 7 , having a securement surface at the needle distal end,
providing an implantable assembly adapted for treating incontinence, the assembly having a surface complementary to the securement surface,
passing the three-dimensional region having the securement surface between one of the lateral incisions and the medial incision and through an obturator foramen,
then associating the instrument at the securement surface with the implantable assembly to provide an attachment between the instrument and the assembly,
then passing the implantable material through tissue from the medial incision toward one of the lateral incisions.
17. The method of claim 16 , wherein the three-dimensional region comprises a portion comprising a spiral, helix, or partial helix.
18. The method of claim 16 , wherein
the three-dimensional region has a length in the range from 2.3 to 5 inches and a diameter in the range from 2.3 to 5 inches, and
an axis of the needle end portion lies within a plane that is orthogonal to the longitudinal axis of the tool.
19. The method of claim 18 , wherein a radial distance from a longitudinal axis of the spacer, to the needle distal end, is in the range from 0.7 to 1.4 inches.
20. The method of claim 16 wherein the pelvic condition is selected from the group consisting of male incontinence, female incontinence, and female prolapse.