Vascular Clamp with Compressible Inserts for Wire Retention
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Solution Overview
Problem
In cardiovascular procedures, existing clamp devices fail to securely retain and identify guide wires without damaging them, and they often cause clutter and additional time during surgical procedures due to the need for precise wire management and differentiation between multiple wires.
Innovation Solution
A clamp device with hinged, compressible inserts and guiding surfaces that securely hold wires without crimping or bending, allowing for easy transition between clamping and guiding functions, and features color coding for wire identification, with elevated surfaces for secure attachment to the sterile drape using double-sided tape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a clamp device is used to retain guide wires on the sterile drape, then the wire can be held in a fixed location and kept sterile, but the wire may be crimped or bent which renders it useless
Solution Approach 1:
A foam insert is introduced as an intermediary element between the clamp jaws and the guide wire. The foam material provides a compliant interface that secures the wire without exerting excessive localized pressure that would cause crimping or bending, thus resolving the contradiction between reliable retention and wire protection.
Solution Approach 2:
The clamp design changes the pressure distribution parameter by incorporating a foam insert that converts concentrated jaw pressure into distributed contact pressure. This parameter change allows the wire to be held securely without reaching the damage threshold, addressing the contradiction between retention force and wire integrity.
2Adaptability or versatility
If multiple guide wires are used in the same sheath, then secondary blood vessels can be accessed, but it becomes difficult to identify and differentiate between the wires
Solution Approach 1:
The clamp device incorporates color-coding mechanisms (such as colored foam inserts or colored identification features) that allow surgical personnel to visually differentiate between multiple guide wires. This color-based identification system maintains the ability to access multiple vessels while preventing wire confusion and procedural errors.
3Ease of operation
If the clamp device structure is complex to provide both clamping and guiding functions, then wire management is improved, but the device becomes more difficult to operate and increases clutter on the sterile field
Solution Approach 1:
The clamp device is designed to perform multiple functions (clamping, guiding, and identifying wires) within a single integrated structure. The foam insert simultaneously provides cushioning for wire protection, friction for secure retention, and can incorporate identification features. This multi-functionality improves wire management without proportionally increasing structural complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The clamp device effectively retains and identifies guide wires without causing damage, reduces clutter, and streamlines the surgical process by allowing easy manipulation and identification of wires, enhancing the efficiency of cardiovascular procedures.
Implementation Method 1
a resilient member positioned between the first and second members for driving the first and second members with the removable compressible inserts together when the clamp closes on the wire
Implementation Method 2
The removable compressible inserts which have large flat frictional surfaces are brought to engagement with each other by a spring or springs fixed between the two members which drive them together
Implementation Method 3
first and second removable compressible inserts inserted in recessed surfaces in facing relationship as well
Data Source
AI summary
A cardiovascular surgical clamp used for retaining, identifying and positioning surgical wire for patients on a sterile field without wire injury. Opposing members with opposing recessed surfaces and back end portions are provided having removable compressible inserts with large flat matching surface areas inserted into the recesses of opposing members. The opposing members have spring/s located between them for driving them together and for manually opening them apart and have hinges formed on projecting struts for allowing simultaneous contact of the large flat matching surface areas of the removable compressible inserts for frictional engagement of wire without injury. The projecting struts of the opposing members provide guide wire surfaces proximate where hinges are formed for guiding wire there through. The opposing members and the projecting struts are moved from a closed to open position and back by compression or release of back end portions of the opposing members.