Discharge device for bone replacement materials

A discharge device for discharging a mass, comprising:

• a housing having a peripheral housing wall, an open proximal housing end, and an open distal housing end, wherein a lateral cutout is formed in the housing wall;
• and
• a container insert, which is situated in the housing and comprises a peripheral container wall, an open proximal container end, and a distal container end,
• wherein a lateral container opening is formed in the container wall, and
• wherein the container insert can be rotated about a longitudinal axis relative to the housing between a closed position, in which the housing wall closes the lateral container opening, and a release position, in which the lateral cutout releases the lateral container opening, wherein the housing wall has a wall thickness in the region of the lateral cutout, which continuously decreases in the circumferential direction toward the lateral cutout through an angular range which is at least 10°.

A discharge device for discharging a mass, comprising:

• a housing having a peripheral housing wall, an open proximal housing end, and an open distal housing end, wherein a lateral cutout is formed in the housing wall;
• and
• a container insert, which is situated in the housing and comprises a peripheral container wall, an open proximal container end, and a distal container end,
• wherein a lateral container opening is formed in the container wall,
• wherein the container insert can be rotated about a longitudinal axis relative to the housing between a closed position, in which the housing wall closes the lateral container opening, and a release position, in which the lateral cutout releases the lateral container opening, and
• wherein the container insert has an open container cross-section which continuously increases in a distal direction along the longitudinal axis across an axial range.

A method of providing a mass to be discharged in a discharge device which comprises a housing having a housing wall and a lateral cutout formed therein, and a container insert, which is rotatably situated in the housing and comprises a container wall and a lateral container opening formed therein, wherein the container insert is prefilled with a first component of the mass, and a removable closure closes the discharge device, and wherein the method comprises the following steps of:

• rotating the container insert relative to the housing about the longitudinal axis, such that the lateral cutout releases the lateral container opening;
• adding a second component of the mass through the lateral cutout and through the lateral container opening to the first component in the container insert;
• rotating the container insert relative to the housing about the longitudinal axis, such that the housing wall closes the lateral container opening;
• and
• removing the closure.