Handle and cartridge system for medical interventions
Inventors
Cutts, Jolene • Yarra, Curtis • Zaler, Christopher • Gordon, Alexander Charles • Lam, Calvin • Lessard, Kevin Alexander • Noel, Erik • Rao, Maheshwara
Assignees
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Publication Number
US-12539107-B2
Publication Date
2026-02-03
Expiration Date
Abstract
An apparatus for transferring mechanical energy in a handle to a cartridge to manipulate tissue or anatomical structures within the body of a human or animal subject for the purpose of treating diseases or disorders. The handle and cartridge contain safety interlocks.
Core Innovation
The invention provides a system for delivering an implant to a prostate. The system includes a delivery device with an elongate tubular member configured to be advanced through a urethra, where a distal portion defines an inner lumen connected to an exit port, and a needle assembly slidably disposed within the elongate tubular member, with a needle distal portion that is shape-set into a curved configuration and configured to extend through the inner lumen and the exit port, with an implant positioned within the needle distal portion.
The delivery device further defines a cutout portion in the distal portion of the elongate tubular member, where the cutout portion is positioned proximally to the exit port and is configured to accommodate outward protrusion of a portion of the needle distal portion. The needle distal portion is extended through the elongate tubular member in a constrained configuration that is straightened relative to the curved configuration, and upon being extended distally through the exit port, the needle distal portion assumes the curved configuration.
The inner lumen may include a tapered cross-sectional dimension, and in certain embodiments includes a distal wall having a radius of curvature tangential to a desired exit trajectory and/or a straight section tangential to a desired exit trajectory. The cutout portion is configured to accommodate outward protrusion, including embodiments where outward protrusion reduces a constraining force on the distal needle portion.
The disclosed use includes treating benign prostatic hypertrophy by advancing the elongate tubular member through the urethra until the distal portion is positioned within a prostatic urethra. The method advances a needle assembly containing a prostatic implant through the elongate tubular member so that the needle distal portion extends distally through the inner lumen and the exit port, penetrates a prostate gland, advances through an outer capsule of the prostate gland, and retracts the needle proximally relative to the implant until the implant is unsheathed at the prostate gland.
Claims Coverage
Independent claims are directed to a prostate implant delivery system and a method for treating benign prostatic hypertrophy. Across these independent claims, the core inventive features include constrained-to-curved needle deployment through an exit port with a cutout-equipped distal portion, specific inner lumen geometry, and prostate penetration followed by implant unsheathing.
Cutout-accommodated constrained straightened deployment to curved configuration
The distal portion of the elongate tubular member defines a cutout portion positioned proximally to the exit port, configured to accommodate outward protrusion of a portion of the needle distal portion, wherein the needle distal portion is extended through the elongate tubular member in a constrained configuration that is straightened relative to the curved configuration and assumes the curved configuration upon being extended distally through the exit port.
Shape-set curved needle deployed through inner lumen and exit port
A needle assembly is slidably disposed within the elongate tubular member and has a needle distal portion that is shape-set into a curved configuration and configured to extend through the inner lumen and the exit port, with an implant positioned within the needle distal portion.
Tapered cross-sectional inner lumen for constrained curved-needle deployment
The inner lumen has a tapered cross-sectional dimension, with the needle distal portion extending through the elongate tubular member in a constrained configuration that is straightened relative to the curved configuration and assuming the curved configuration upon being extended distally through the exit port.
Needle-based prostate penetration and implant unsheathing for BPH treatment
Advancing a needle assembly containing a prostatic implant through the elongate tubular member until a needle distal portion that is shape-set into a curved configuration is extended distally through the inner lumen and the exit port, penetrating a prostate gland, advancing until the needle distal portion is advanced through an outer capsule of the prostate gland, and retracting the needle distal portion proximally relative to the implant until the implant is unsheathed at the prostate gland.
The independent claims cover prostate implant delivery and BPH treatment centered on a shape-set curved needle that is constrained straightened during advancement through an elongate tubular member and then assumes the curved configuration after passing through an exit port, with a cutout portion proximally to the exit port accommodating outward protrusion. Additional coverage further specifies a tapered cross-sectional inner lumen, and the method claim adds prostate penetration and implant unsheathing.
Stated Advantages
Documented Applications
Treating benign prostatic hypertrophy by advancing a delivery device through a urethra, deploying a shape-set curved needle distal portion through an exit port, penetrating the prostate gland and advancing until passing the outer capsule, and retracting the needle proximally relative to the implant until the implant is unsheathed at the prostate gland.
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