Hollow sealable device for temporary or permanent surgical placement through a bone to provide a passageway into a cavity or internal anatomic site in a mammal

A hollow sealable device for temporary or permanent surgical placement insertable through a bone to provide a passageway into an internal cavity or anatomic site in a mammal, said device being made of a biocompatible material and comprises a first hollow member that has an outer side and an inner side, a first, rear end which is insertable in the cavity and a second, forward end which is accessible from outside the cavity;

• said hollow member being provided with openings only at said first and second ends thereby defining and maintaining an interior passage which spans it longitudinally;
• wherein said passage has a minimum interior diameter so that an instrument way be inserted into the cavity;
• said first member having at least one fastening means on its outer side, at said first rear end or at said second forward end, for the purposes of keeping said first member temporarily or permanently affixed to a bone and preventing the first member from undesirably advancing or slipping out;
• said device further comprising a second movable member that has an outer side and two ends, a first rear end and a second, forward end, said second member being connected to the first member by a coupling means provided on the inner side or at the second, forward end of the first member;
• said second member sealing said passage in said first member;
• wherein said second member has a screw head being provided with a ceramic coating.

A hollow sealable device for temporary or permanent surgical placement, insertable through a bone to provide a passageway into an internal cavity or anatomic site in a mammal, said device being made of a biocompatible material and comprises a first hollow member that has an outer side and an inner side, a first, rear end which is insertable in the cavity and a second, forward end which is accessible from outside the cavity;

• said hollow member being provided with openings only at said first and second ends thereby defining and maintaining an interior passage which spans it longitudinally;
• wherein said passage has a minimum interior diameter so that an instrument may be inserted into the cavity;
• said first member having at least one fastening means on its outer side, at said first rear or at said second forward end, for the purposes of keeping said first member temporarily or permanently affixed to a bone and preventing the first member from undesirably advancing or slipping out;
• said device further comprising a second movable member that has an outer side and two ends, a first rear and a second, forward end, said second member being connected to the first member by a coupling means provided on the inner side or at the second, forward end of the first member;
• said second member sealing said passage in said first member;
• wherein said coupling means is a lock provided at said forward end of said first member, whereby said second movable member is connected with the forward end of the first member.

A hollow sealable device for temporary or permanent surgical placement, adapted to be inserted through a bone to provide a passageway into an internal cavity or anatomic site in a mammal, said device being made of a biocompatible material and comprising:

• a first hollow member that has an outer side and an inner side, a first, rear end which is insertable in the cavity and a second, forward end which is accessible from outside the cavity;
• said hollow member being provided with openings only at said first and second ends thereby defining and maintaining an interior passage which spans it longitudinally;
• wherein said passageway has a minimum interior diameter so that an instrument may be inserted into the cavity;
• said first member having at least one fastening means on its outer side, at said first rear end or at said second forward end, for the purposes of keeping said first member temporarily or permanently affixed to a bone and preventing the first member from undesirably advancing or slipping out;
• and
• a second movable member that has an outer side and two ends, a first rear end and a second, forward end, said second member being connected to the first member by a coupling means provided on the inner side or at the second, forward end of the first member;
• said second member sealing said passage in said first member;
• wherein at least one of said fastening means is a substantially rectangular fin provided at the first, rear end of said first member, which may be anchored from the interior the cavity;
• and said first member comprising at least two holes, substantially opposite one another, which connect the outer side with the inner side of said first member.