Getinge MAQUET HEARTSTRING III Instrucciones De Uso página 5

HEARTSTRING III Proximal Seal System
Tension Spring Ends
5. Unlock the lock by sliding it in the direction as indicated by the arrows (Figures 12 and 13).
Figure 12.
Unlock the Lock
(One handed approach)
6. Create a 3.8 - 4.5 mm aortotomy with a punch/aortic cutting device designed for use on unclamped aortas,
per manufacturer's instructions. If using the Aortic Cutter to create the aortotomy, follow steps 6.1 to 6.6.
6.1 Choose the location of the anastomosis. Clean the aortic surface by removing any loose tissue and
ensuring the tissue is unaltered.
WARNING: Use on altered tissue (e.g., cardioplegia hole, aortotomy Incision) may cause the aortic
plug to not be captured by the Aortic Cutter and result in the introduction of emboli into the aorta.
6.2 Carefully remove the Protective Cap covering the Cutter and Needle. Ready the Cutter by fully
depressing the Safety Lock (Figure 4), until it is flush with the device outer body.
PRECAUTION: Care should be taken not to actuate the Aortic Cutter accidentally. When the Safety
Lock is depressed, the Aortic Cutter is ready to be actuated.
6.3 Place the Aortic Cutter on the area of the aorta where the anastomosis will be created. The Aortic Stops
should be flush with the aortic surface. The Needle does not need to fully penetrate the aortic wall.
WARNING: Ensure that the mean blood pressure is greater than 55 mm Hg to reduce the risk of
back-walling the aorta with the Aortic Cutter.
6.4 Hold the Aortic Cutter as shown in (Figure 14), with one hand supporting the body and the other hand
ready to actuate the device in a syringe-like fashion.
6.5 Ensure that the Aortic Cutter is held perpendicularly to the surface of the aorta, and depress the
Actuation Button to activate the Aortic Cutter.
PRECAUTION: Care should be taken not to exert excessive downward force while actuating the
Aortic Cutter to reduce the risk of back-walling the aorta.
6.6 When the aortotomy is complete, remove the Aortic Cutter from the aorta and control the bleeding
manually with an index finger.
PRECAUTION: Care should be taken to avoid the sharp Needle and Cutter upon removal.
NOTE: The aortic plug may be viewed by using a standard surgical needle to slide the plug down the
shaft of the needle.
Figure 11.
Tension Spring end alignment
Figure 14.
Actuate Device
ENGLISH
Tension Spring Ends
Figure 13.
Unlock the Lock
(Two handed approach)
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