Arthroscopic Bone Marrow Harvesting and Application
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Solution Overview
Problem
Current arthroscopic surgery methods require an additional surgical site for bone marrow aspiration and application, lacking a method to harvest and apply bone marrow aspirate from and to the same joint site effectively.
Innovation Solution
An arthroscopic method for harvesting bone marrow from long bones, such as the hip or elbow, and using it therapeutically in the same joint, involving the use of a bone marrow aspiration needle, syringes, biomaterials like collagen patches, and clotting agents to facilitate healing, with techniques like the SutureBridge™ and button techniques for delivery and reattachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If bone marrow is harvested from the iliac crest using prior known techniques, then bone marrow can be obtained for therapeutic application, but an additional surgical site is required beyond the site of surgical repair
Solution Approach 1:
The patent combines the bone marrow harvesting procedure with the existing surgical site for joint repair. The aspiration needle is inserted through the same portal used for arthroscopic access, allowing bone marrow to be harvested from the medullary canal at the site of injury rather than requiring a separate iliac crest site. This merging of procedures reduces the number of surgical incisions and access points.
Solution Approach 2:
The bone marrow is harvested from the medullary canal of the long bone at the site of injury and applied back to the same site for therapeutic effect. This self-service approach allows the body's own resources (bone marrow stem cells) to be utilized at the injury site without requiring transplantation from a distant donor site, thereby eliminating the need for additional surgical access points.
2Quantity of substance
If bone marrow is harvested from the iliac crest, then sufficient bone marrow can be obtained, but the process requires additional surgical time and sites
Solution Approach 1:
The bone marrow aspiration needle is positioned in the medullary canal before the therapeutic application step. The needle remains in place during the surgical procedure, and bone marrow is aspirated through the same portal that will be used for delivering the bone marrow back to the injury site. This preliminary positioning eliminates the need for separate harvesting and application procedures, reducing overall surgical time.
3Ease of operation
If arthroscopic techniques are used for bone marrow harvesting, then minimally invasive access is achieved, but the method for aspirating and applying bone marrow from the same site is not currently known
Solution Approach 1:
The arthroscopic portal serves multiple functions: it provides access for arthroscopic visualization, allows insertion of the bone marrow aspiration needle for harvesting, and enables delivery of the harvested bone marrow back to the injury site. This multi-functional use of a single portal makes the procedure feasible while maintaining minimal invasiveness.
Solution Approach 2:
The bone marrow aspiration needle acts as an intermediary device that can both harvest bone marrow from the medullary canal and serve as a delivery vehicle for the harvested bone marrow back to the injury site. The needle and associated syringe system facilitate the transfer of bone marrow from the harvest site to the application site through the same arthroscopic portal.
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
Enables quick and minimally invasive repair with reduced surgical sites by directly harvesting and applying bone marrow aspirate within the same joint, promoting effective tissue repair and healing.
Implementation Method 1
Bone marrow, which is found in the long bones and the iliac crest, contains stem cells that differentiate into mature blood cells. Bone marrow may be aspirated from the bones and used as a way to localize stem cells at the site of injury.
Data Source
AI summary
Methods of arthroscopic harvesting of bone marrow aspirate from bone joints and therapeutic application of the bone marrow aspirate in a bone joint. The method of harvesting includes extracting bone marrow from a joint, adding a biomaterial, and adding clotting agent to form a clot.