The design was made in the Solidworks environment, based on the disclaimers provided by the customer. The overall layout has been designed to ensure the dependent movement of the two syringes, the one that withdraw blood and the one that mix blood with anticoagulant; this results in the consequent maintenance of a fixed relationship between anticoagulant and blood. The mechanisms were first studied and then planned based on engineering knowledge of mechanical drives and their design procedures. The designed system was then almost exclusively manufactured with the 3D Eden 260V printer supplied with the TPM, using photopolymeric resins of various colours to meet the aesthetic needs of the device.
Blood draw device made in the Solidworks environment
The project consists in the study, implementation and application of a new device. The functional evaluation of the visible prototype was carried out in the presence of the customer using 3d printer and it was successful. The mechanical mechanism works properly, the movement is correct and dosages are actually maintained. In addition, compared with the syringes already present in the market, this handling system is designed in such a way as to prevent the creation of a too high depression to the vein of the animal in order to avoid their collapse.
Potential applications are extended to all devices that can be manufactured based on specific customer needs, using printable materials in 3d.
Design and edit tables
Blood draw device for small animals. The prototype was patented
The device allows to draw blood to small animals with a constant ratio between blood drawn and anticoagulant (Fig.3). This solves a critical point for picking blood sample in small animals: it has not been able to obtain proper monitoring of the blood taken for various causes (collapse of the vein from which it is drawn, movement of the animal,...). The device, on the other hand, allows a controlled and constant blood sampling to be dosed with the anticoagulant, allowing concentration control. The mechanical handling system uses two 60ml and 10ml syringes. The latter is filled with anticoagulant so that when it arrives at the end of the stroke, the other syringe is completely filled with 60 ml of solution made by anticoagulant and blood in the desired and projected relationship. In addition, the handling system is designed in such a way as to prevent the collapse of the animal, as mentioned above. Tecnoline srl, http://www.tecnolinesrl.org
Tecnoline srl, http://www.tecnolinesrl.org
The TPM is undergoing several collaborations based on the possibility of obtaining prototypes that are winning in a short time and with materials suitable for the biomedical field.
Finished prototype