Device for coating regions of a medical implant

Patent metadata

Field	Value
Publication number	US-9878346-B2
Application number	US-201414504032-A
Country	US
Kind code	B2
Filing date	Oct 1, 2014
Priority date	Dec 23, 2010
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

Subsequently, the medical implant coated with the liquid punctures the membrane 14 which, until then, protected the powder 18 situated below it from external influences. The medical implant is then immersed in the powder 18 . The liquid film on the surface of the medical implant causes the powder 18 to adhere well to the surface thereof.

First claim

We claim:

1. A device for coating at least regions of a medical implant, the device comprising:
a container having an opening for introduction and removal of the medical implant, the container containing a powder comprising at least one pharmaceutically active substance or one bone growth-promoting substance;
a transfer means arranged above the powder, the transfer means being configured to transfer a liquid to the medical implant, the liquid being contained in the transfer means;
a membrane arranged below the transfer means and above the powder, the membrane sealing the powder in the container; and
a wiper arranged in a region of the opening above the transfer means, the wiper being separate from the transfer means,
wherein the powder is transferred to the medical implant through contacting it with the medical implant, and
wherein the wiper is disc-shaped and includes at least one notch that connects a top and a bottom of the wiper.

2. The device according to claim 1 , wherein the opening is closed by a pull-off lid.

3. The device according to claim 1 , wherein the transfer means comprises pores that contain the liquid in the form of a solution or suspension, wherein the liquid contains a second pharmaceutically active substance.

4. The device according to claim 1 wherein the bone growth-promoting substance comprises a mixture of α- and β-calcium phosphate.

5. A device for coating at least regions of a medical implant, the device comprising:
a container having an opening for introduction and removal of the medical implant, the container containing a powder comprising at least one pharmaceutically active substance or one bone growth-promoting substance;
a transfer means arranged above the powder, the transfer means being configured to transfer a liquid to the medical implant, the liquid being contained in the transfer means;
a membrane arranged below the transfer means and above the powder, the membrane sealing the powder in the container; and
a wiper arranged in a region of the opening above the transfer means, the wiper being separate from the transfer means,
wherein the powder is transferred to the medical implant through contacting it with the medical implant, and
wherein the wiper is shaped as an envelope of cone or a hemispherical surface, wherein a tip of the cone or the hemispherical surface is oriented toward the powder, and wherein the cone or the hemispherical surface contains the at least one notch that connects the top and the bottom of the wiper.

6. The device according to claim 5 , wherein the opening is closed by a pull-off lid.

7. The device according to claim 5 , wherein the transfer means comprises pores that contain the liquid in the form of a solution or suspension, wherein the liquid contains a second pharmaceutically active substance.

8. The device according to claim 5 , wherein the bone growth-promoting substance comprises a mixture of α- and β-calcium phosphate.

Assignees

• Heraeus Medical Gmbh

Inventors

• Vogt Sebastian
• Büchner Hubert

Classifications

• A61L2300/406

  Antibiotics · CPC title

• A61L2430/24

  for joint reconstruction · CPC title

• A61L2/18

  Liquid substances · CPC title

• A61L2300/412

  Tissue-regenerating or healing or proliferative agents · CPC title

• A61L2420/02

  Methods for coating medical devices · CPC title