Bone marrow aspiration device
View Patent ↗An embodiment of the invention is directed to a bone marrow aspiration device comprising a plurality of syringes, each of which operates in a series of sequential steps to obtain bone marrow of high quality and therapeutic value, i.e., having a high mesenchymal stem cell (“MSC”) MSC/ml number. In certain embodiments, a syringe may be used along with a collection vessel or with a second syringe. A further embodiment of the invention is directed to a method for using the bone marrow aspiration device as set forth herein.
1. A bone marrow aspiration device comprising:
a housing configured to couple to a first syringe, a second syringe, and a needle;
a first one-way valve disposed within the housing and positioned between the needle and the first syringe, the first one-way valve configured to allow a fluid to only flow from the needle to the first syringe;
a second one-way valve disposed within the housing and positioned between the first syringe and the second syringe, the second one-way valve configured to allow a fluid to flow only from the first syringe to the second syringe; and
a T-shaped coupler disposed within the housing and joining flow paths of the first syringe, the first one-way valve, and the second one-way valve together.
2. The device of claim 1 , further comprising a tubing that connects the coupler to the second syringe.
3. The device of claim 1 , wherein the needle is connected to the first syringe via a needle hub.
4. The device of claim 1 , wherein the needle and first tubing are permanently connected to the housing.
5. The device of claim 1 , wherein the needle is detachable from the housing.
6. A method for extracting bone marrow from a subject comprising the steps of:
inserting a needle of a bone marrow aspiration device into a bone of a subject, the bone marrow aspiration device comprising:
a housing configured to couple to a first syringe, a second syringe, and a needle;
a first one-way valve disposed within the housing and positioned between the needle and the first syringe, the first one-way valve configured to allow a fluid to only flow from the needle to the first syringe;
a second one-way valve disposed within the housing and positioned between the first syringe and the second syringe, the second one-way valve configured to allow a fluid to flow only from the first syringe to the second syringe; and
a coupler disposed within the housing and joining flow paths of the first syringe, the first one-way valve, and the second one-way valve together;
creating a vacuum in the first syringe sufficient to withdraw bone marrow from the subject through the needle into the first syringe;
filling a portion of the volume of the first syringe with bone marrow;
releasing the bone marrow from the first syringe into the second tubing; and
causing the second syringe to fill with bone marrow from the first syringe.
7. The method of claim 6 , further comprising coating the second syringe with an anticoagulant.