Abstract: The present invention relates to a method of obtaining high purity stem cells from tissue, comprising: providing an impurity-containing cell mass obtained from a tissue; providing a filter device which comprises a cylinder structure, wherein the cylinder structure comprise an inlet and an outlet below and a content configured inside the cylinder structure between the inlet and the outlet; culturing the impurity-free cell mass on a polymeric film, wherein target stem cells of the impurity-free cell mass conjugate into a spheroid cell population; collecting the spheroid cell population from the polymeric film to obtain high purity target stem cells. According to the method of the present invention, stem cells can be rapidly and easily obtained from tissue. Only a small amount of tissue sample is required and the stem cells obtained can be readily used in clinical applications such as autotransplantation without the requirement of in vitro amplification.

Abstract: Disclosed herein is a bone fixation device. The fixation device has a head portion having a conduit and a plurality of pawls formed therein along one side of the conduit; and an elongation strip having a hooked end and a plurality of ratchet teeth formed thereon the body of the strip. The head portion is connected to the non-hooked end of the elongation strip at an angle between 100-170 degrees, and the plurality of pawls of the head portion engage the plurality of teeth when the elongation strip is inserted into the conduit of the head portion to form a loop around the weaken or fractured bone so as to stabilize the weaken or fractured bone.

Abstract: A suction-irrigation head includes a manifold set, one end extending to form a discharge pipe and an intake pipe, an end of the discharge pipe forming a discharge opening, an end of the intake pipe forming an intake opening; a tube including a circumferential wall, intake bores disposed on one side of the circumferential wall, discharge bores disposed on the other side of the circumferential wall; and a separation wall, the interior of the manifold set and the tube being divided by the separation wall to form an intake chamber and a discharge chamber not communicating with each other, the intake chamber, the intake pipe, and the intake bores communicating with one another, and the discharge chamber, the discharge pipe and the discharge bores communicating with one another.

Abstract: Disclosed herein is an overtube for use with an irrigation tip of a catheter during wound irrigation. The overtube includes a tubular body, in which a portion of the tubular body is cut away; and the frontend of the tubular body is tapered in a direction that is away from the cut away portion of the tubular body and is at an angle about 130-180 degrees in relative to the tubular body.

Abstract: The present invention relates to a method of obtaining high purity stem cells from tissue, comprising: providing an impurity-containing cell mass obtained from a tissue; providing a filter device which comprises a cylinder structure, wherein the cylinder structure comprise an inlet and an outlet below and a content configured inside the cylinder structure between the inlet and the outlet; culturing the impurity-free cell mass on a polymeric film, wherein target stem cells of the impurity-free cell mass conjugate into a spheroid cell population; collecting the spheroid cell population from the polymeric film to obtain high purity target stem cells. According to the method of the present invention, stem cells can be rapidly and easily obtained from tissue. Only a small amount of tissue sample is required and the stem cells obtained can be readily used in clinical applications such as autotransplantation without the requirement of in vitro amplification.