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Team Members: Ann Sagstetter, Kelvin Ng, Timothy Balgemann, Angwei Law, Padraic Casserly Client: Dr Julie Kessel, Dept of Pediatrics Advisor: Prof Brenda Ogle, Dept of BME Umbilical Vein Catheterization Training Model
Outline of Presentation Problem Statement current methods need improvement Background Information umbilical anatomy & catheterization, NRP training, current products Client’s Expectations: The PDS Design Components architecture, stabilization, materials Brainstorming models 1, 2, 3 Design Matrix Future Work References & Questions - CONFIDENTIAL -
Problem Statement - CONFIDENTIAL - To construct a model optimized in the following ways for use in the umbilical vein catheterization training program: firmly stabilize a fresh umbilical cord accurately mimic an infant’s abdomen external texture internal structure
Background Information - CONFIDENTIAL - The Anatomy of the Umbilical System
Fetal Circulation
Background Information - CONFIDENTIAL - Umbilical Vein (UV) Catheterization 3.5-F or 5-F catheter is commonly used 1 F = 1/3 mm depth of insertion depends on urgency may be performed up to 7 days after birth
UV Catheterization Training Background Information - CONFIDENTIAL -
Background Information - CONFIDENTIAL - Current Products clinical-2_fr.asp
Background Information - CONFIDENTIAL - In comparison to reality…
Client’s Expectations: The PDS Use real, fresh umbilical cords “Umbilicus” must stabilize the cord Mimic anatomical course of UV Mimic texture of abdomen Include a blood reservoir Disposable or sterilizable materials preferred - CONFIDENTIAL -
Design Components - CONFIDENTIAL - 1. Architecture general size and structure blood reservoir anatomical course 2. Stabilization fixing the cord to the model no inward or outward slipping 3. Materials texture mimicry disposable / sterilizable
Brainstorming - CONFIDENTIAL - Model 1 (Salad Bowl)
Brainstorming - CONFIDENTIAL - Model 2 (Pommel Horse)
Brainstorming - CONFIDENTIAL - Model 3 (Gel Cushion)
Design Matrix - CONFIDENTIAL -
Brainstorming - CONFIDENTIAL - Stabilization Clamp approach Adhesive approach Materials Gelatin Foam Silicone
Future Work - CONFIDENTIAL - Experiments on Materials texture of foam versus gelatin adhesion to umbilical cord sterilizability / disposability Stabilizing Structures depend on chosen material adaptable to various cord sizes keep cord intact
References 1. William Ehman. “Umbilical cord model”. Canadian Family Physician, January Website: clinical-2.aspwww.cfpc.ca/cfp/2003/Jan/vol49-jan- clinical-2.asp 2. “Baby Umbi”. Laerdal. Website: 3. Wikipedia. Website: 4. “Ballistic Gel Preparation”. Tactical Works. Website: paration/ballistic_gelatin_preparation.html paration/ballistic_gelatin_preparation.html 5. Giancarlo Pennati. “Biomechanical properties of the human umbilical cord”. Biorheology (5-6), John Kattwinkel. “Textbook of Neonatal Resuscitation”. American Academy of Pediatrics, 5 th edition (2006). 6(4)-6(5). - CONFIDENTIAL -
Questions & Answers - CONFIDENTIAL -