Percutaneous delivery device and method for tendon-ligament-muscle repair
Inventors
Centeno, Christopher • Reischling, Patrick • Snyder, Timothy
Assignees
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Publication Number
US-10350372-B2
Publication Date
2019-07-16
Expiration Date
Abstract
Embodiments include systems, methods and devices for the percutaneous delivery of therapeutic agents to tendons, ligaments and muscle. Certain embodiments include a device comprising a needle-catheter based delivery system with adjustable characteristics to allow a clinician to control the angle and depth of needle and/or catheter deployment to a desired location. System embodiments may include a controller unit where a clinician can adjust the axial position depth and location of needles and/or catheters.
Core Innovation
The invention provides a percutaneous device including a tubular system with at least two hollow tubes disposed coaxially, where an innermost tube is housed within an outer tube and configured to advance within the outer tube’s hollow shaft. The second distal end of the innermost tube exits the first distal end of the outer tube, enabling independent deployment of the innermost tube relative to the outer tube during percutaneous use.
A key feature is that the innermost tube comprises a plurality of projections at the second distal end, where the projections are aligned to engage ligament, tendon, or muscle fiber bundles and are configured to guide the second distal end along an axial direction of the ligament, tendon, or muscle fiber bundles. The projections are configured to guide without flexing toward the innermost tube as the innermost tube is advanced in the axial direction into the ligament, tendon, or muscle fiber bundles.
The invention further provides a controller apparatus operatively coupled to the tubular system, configured to adjust an angle of deployment of the tubular system in a coronal plane, and further to adjust an angle of deployment of the innermost tube in a sagittal plane independently from the outer tube. The controller apparatus is also configured to adjust a length of deployment of at least one tube of the tubular system, supporting positioning of the innermost tube for treatment of a proximal region of an anterior cruciate ligament (ACL).
Claims Coverage
The independent claims cover a percutaneous coaxial tubular delivery device with projection-guided deployment and independent coronal/sagittal angle control, and a method for percutaneous treatment of the proximal region of an anterior cruciate ligament (ACL) using that device. The core inventive features are the coaxial outer/innermost tubular system, projection-guided bundle engagement, independent angle and deployment length adjustments, ACL angle determination, and therapeutic agent delivery.
Coaxial tubular system with projection-guided innermost tube
A tubular system having at least two hollow tubes, including an outer tube and an innermost tube housed coaxially within the outer tube, where the innermost tube advances within the outer tube and exits the outer tube, and where the innermost tube comprises a plurality of projections aligned to engage ligament, tendon, or muscle fiber bundles and configured to guide the innermost tube along the axial direction of the ligament, tendon, or muscle fiber bundles without flexing toward the innermost tube as the innermost tube is advanced.
Independent coronal and sagittal deployment angle control with deployment length adjustment
A controller apparatus configured to adjust an angle of deployment of the tubular system in a coronal plane, independently adjust an angle of deployment of the innermost tube in a sagittal plane relative to the outer tube, and further adjust a length of deployment of at least one of the tubes of the tubular system.
ACL angle determination and coronal-plane alignment for outer tube deployment
For percutaneous treatment of a proximal region of an anterior cruciate ligament (ACL), determining an angle of the ACL preoperatively, aligning the outer tube with the determined angle of the ACL in at least one plane, and deploying the outer tube into the ACL substantially aligned with the determined angle of the ACL.
Sagittal-plane innermost tube positioning with projection-guided bundle engagement and therapeutic agent delivery
Deploying the innermost tube from the outer tube and positioning the innermost tube to a proximal region of the ACL by adjusting an angle of the innermost tube along a second plane perpendicular to the at least one plane, engaging a ligament, tendon, or muscle fiber bundle with at least one of the plurality of projections, guiding the innermost tube along the ligament, tendon, or muscle fiber bundle with at least one of the plurality of projections, and deploying therapeutic agents through the innermost tube to the proximal region of the ACL.
The independent claims collectively require a coaxial outer/innermost tubular delivery system with a projection-equipped innermost tube configured for guided engagement with ligament, tendon, or muscle fiber bundles, together with a controller that independently adjusts deployment angles in a coronal plane and a sagittal plane and also adjusts deployment length. The ACL method further specifies preoperative ACL angle determination, coronal-plane alignment and outer-tube deployment, followed by innermost-tube sagittal-plane positioning, projection-guided bundle engagement, and therapeutic agent delivery to the proximal ACL region.
Stated Advantages
Independent adjustment of deployment angle of the tubular system in a coronal plane and deployment angle of the innermost tube in a sagittal plane independently from the outer tube.
Guiding of the innermost tube along the axial direction of ligament, tendon, or muscle fiber bundles using aligned projections.
Engagement of ligament, tendon, or muscle fiber bundles without flexing toward the innermost tube while the innermost tube is advanced axially into the bundles.
Deployment of therapeutic agents through the innermost tube to the proximal region of the ACL.
Documented Applications
Percutaneous treatment of the proximal region of an anterior cruciate ligament (ACL).
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