Bedpan Using TRIZ
Editor | On 01, Jan 2010
Message: 2024Posted by: gaby
Posted on: Saturday, 7th May 2011
Hi
I need to redesign a bedpan (medical use) using triz to make confortable for a school proyect and I honestly don?t have a clue. Hope you can help me I would really appreciate it Gaby form Mexico
Message: 2025
Posted by: Ellen Domb
Posted on: Thursday, 12th May 2011
One question is how to use TRIZ, and a different question is why to use TRIZ. Generally, you use TRIZ when the problem cannot be solved by conventional methods, and you want a creative solution. For many projects, especially school projects, there is the assumption that there is a contradiction and that the contradiction resolution tools (for either physical or technical contradictions) will suggest solutions.
If this is the situation, start with the problem: I want the bedpan to be large (to make it easy to use cleanly) and I want it to be small (to make it comfortable for the patient.) This is a physical contradiction, so apply the separation principles. OR you might have a technical (trade-off) contradiction: When the thickness (length of a stationary object) gets larger, the ease of use (related to comfort) gets worse. Then you can apply the contradiction matrix and the 40 principles, OR you can work on eliminating the assumptions that cause the contradiction, and improving the ideality of the system. Maybe you can get rid of the bedpan, instead of improving it.
I hope this helps you get started. There have been several textbooks serialized in the TJ, so your next step might be to do some research.
Message: 2026
Posted by: C Nikulin
Posted on: Saturday, 14th May 2011
Dear Gabi
youcantakeTRIZto solveproblems inhealth,for exampleyoucanusethesubstance–fieldmodelproposingnewchangesinterecci?nbetweenskin-needle–medicine.
forexampleusingsubstance–fieldyou canmakenewsolutionslike the oneattachedon thenext page.
http://www.physorg.com/news124376919.html
field changemechanical–hydraulictochemicalorbiological.
Fromthemedical point of viewsubstance–fieldmodelprovidesbetteralternativesolutionasyou canalterthe fieldsorsubstancesdepending onthe problem,will be morevaluablethanworkingwiththe inventive principlesthataremorefocused onsolvingtechnical problems.cheers
Message: 2028
Posted by: Ellen Domb
Posted on: Sunday, 15th May 2011
Definitely a good approach–I suggested the contradictions because a person who has no idea where to start might be more familiar with simple tools.
Gabi–did we help you get started?
Message: 2030
Posted by: shree phadnis
Posted on: Monday, 23rd May 2011
the approach will be as follows.1. Conduct a research on on the available bed pans and designs, including patent search2. Conduct historical search on the bed pans and the various problems that were resolved in time3. Identify a list of various problems, some can even be based on existing patents and how to circumvent them 4. Formulate contradictions and develop concepts5. Use laws of evolution6. Use Pugh selection matrix to choose best design7. develop prototype8. Look for possible patent opportunities