Prostatic Urethra Tissue Cutter With Expandable Stabilization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing treatments for Benign Prostatic Hyperplasia (BPH) often cause excessive tissue damage and are not minimally invasive, failing to address symptoms effectively while minimizing risk.
Innovation Solution
A system and method for treating BPH by cutting and stabilizing tissue in the prostatic urethra using a handle body with a cutter or deployment actuator, an expandable member, and an elongate member, allowing precise tissue manipulation and delivery of therapeutic substances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a drug coated balloon is inflated to enlarge the urinary tract, then the prostatic urethra is left less obstructed, but excessive tissue damage is caused to the entire inner circumference
Solution Approach 1:
The incision device makes targeted cuts at specific locations (anterior and posterior commissures) rather than affecting the entire inner circumference. The expandable member is positioned to engage only the specific tissue requiring relief, delivering localized treatment rather than circumferential damage.
Solution Approach 2:
The procedure extracts only the minimum necessary tissue through precise incisions at the commissures to relieve obstruction, rather than damaging all tissue around the entire circumference as the balloon procedure does.
2Reliability
If deep incisions are made to cut surrounding prostate gland tissue including the prostatic capsule, then compression on the bladder neck is released, but excessive tissue removal occurs
Solution Approach 1:
The incisions are made locally at specific strategic points (commissures) rather than removing tissue broadly. The expandable member engages only the specific tissue at the bladder neck compression point, releasing obstruction without unnecessary tissue loss.
Solution Approach 2:
The procedure uses partial action by making only the necessary incisions at the commissures to achieve symptom relief, avoiding the excessive tissue removal that would result from deeper or more extensive incisions.
3Manufacturing precision
If the cutter moves from a first position within the cutter body to a second position protruding from the cutter slot, then precise tissue cutting is achieved, but device complexity increases
Solution Approach 1:
The cutter is nested within the cutter body and moves along a defined path through the cutter slot. The cutter can be stored within the cutter body when not in use, and deployed through the slot during the procedure, creating a compact yet functional mechanism.
Solution Approach 2:
The cutting mechanism is segmented into distinct components (cutter, cutter body, cutter slot) that can move independently. The cutter translates along the slot to the required position, allowing precise control of the cutting action while maintaining structural organization.
Data Source
AI summary
This patent document discloses devices, systems, and associated methods for cutting, manipulating, and stabilizing tissue. A system for manipulating tissue in a prostatic urethra includes a handle body having a deployment actuator or a cutter actuator, along with an inflation port. An elongate member is coupled to a distal end of the handle body, and an expandable member is coupled to a distal end of the elongate member, which also includes a delivery body or a cutter body. The expandable member is configured to stabilize the delivery body or the cutter body against target tissue when the expandable member is expanded. A tissue manipulation structure, such as a cutter, is configured to move from a first position to a second position in which at least a portion of the structure extends into the surrounding prostatic tissue.