Medical device
The invention concerns a medical device provided with an outer part or shell and an inner functional part which inner functional part comprises a combination of units. The functional combination of units normally constitutes a device comprising a part being able to penetrate the skin of a patient i.e. a subcutaneous part such as a cannula, a sensor, an insertion needle or the like.
1. A medical device comprising:
an outer part, where the outer part provides a functional cover, the outer part comprising an outer shell, an outer surface and one or more activation points on the outer surface; and
an inner part configured to insert a subcutaneous part, the inner part being protected by the functional cover during use,
the one or more activation points being connected to contact surfaces of the inner part in such a way that pressure on the one or more activation points initiates a function of the inner part to insert the subcutaneous part and the one or more activation points are positioned on a first section of the outer shell of the outer part comprising a hard material;
a second section of the outer shell of the outer part comprising a hard material; and
between the first section of hard material and the second section of hard material, the outer shell comprises a third section comprising a soft and flexible material,
wherein the inner part comprises a first part and a second part, the first part is slidably attached to the second part and has at least one retracted and one forward position relative to the second part, and the inner part further comprises a first spring and a second spring.
2. The medical device according to claim 1 , wherein the outer part comprises a housing having a rounded and continuous surface without any openings providing access to inner functional parts, and the housing comprising two opposite side parts and two wedges of softer material.
3. The medical device according to claim 1 , wherein the first and second sections of hard material comprises ABS (acrylonitrile butadiene styrene).
4. The medical device according to claim 1 , wherein the third section of soft material comprises TPE (thermoplastic elastomer).
5. The medical device according to claim 1 , wherein the hard material comprises a web or skeleton and the soft material is placed between a central part of hard material and a side part of hard material, wherein the side part is provided with the one or more activation points.
6. The medical device according to claim 1 , wherein the inner part further comprises an inner lid, and wherein the first spring rests against a surface of the inner lid at a first end and at a second end the first spring rests against a surface of the second part in such a way that the first spring is in a loaded position when the first part is in the at least one retracted position and in an unloaded position when the first part is in the at least one forward position.
7. The medical device according to claim 1 , wherein the first spring is displaceable from the loaded position to the unloaded position by pressing the one or more activation point towards each other.
8. The medical device according to claim 1 , wherein the inner part further comprises a third part slidably attached to the second part and the third part has at least one retracted and one forward position relative to the second part.
9. The medical device according to claim 8 , wherein the second spring rests against a surface of the third part at a first end and at a second end the second spring rests against a surface of the second part in such a way that the second spring is in a loaded position when the third part is in the at least one forward position and in an unloaded position when the third part is in the at least one retracted position.
10. The medical device according to claim 9 , wherein the second spring is automatically displaced from the loaded position to the unloaded position subsequent to the displacement of the first spring prompted by pressing the one or more activation points towards each other.
11. The medical device according to claim 1 , wherein the medical device is an infusion device and the outer part comprises the outer shell of a connector part and the inner part comprises an infusion part comprising a subcutaneously positioned cannula or sensor during use.
12. The medical device according to claim 11 , wherein the outer part fully covers the infusion part when mounted on the infusion part.