Invention Grant
- Patent Title: Manufacturing processes for making medical devices having a coating gradient
- Patent Title (中): 制造具有涂层梯度的医疗装置的制造方法
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Application No.: US13749483Application Date: 2013-01-24
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Publication No.: US08747940B2Publication Date: 2014-06-10
- Inventor: Jeong S. Lee , Kenneth L. Wantink
- Applicant: Abbott Cardiovascular Systems Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Abbott Cardiovascular Systems Inc.
- Current Assignee: Abbott Cardiovascular Systems Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Fulwider Patton LLP
- Main IPC: B05D3/02
- IPC: B05D3/02 ; A61M25/00 ; B05D1/32

Abstract:
Methods for forming a “coating gradient” on medical devices, such as a balloon catheter or guidewire are disclosed. The balloon portion of the catheter has a protective covering initially placed over it to prevent the balloon from receiving a first hydrophilic coating. After a first hydrophilic coating is applied, the protective covering is removed. A second hydrophilic coating could be applied to the catheter. A guidewire having less lubricity at the distal end portion also can be created. A first hydrophilic coating is applied to the elongated shaft and distal shaft section of the guidewire. After the first hydrophilic coating cures, the first hydrophilic coating is removed from a portion of the distal shaft section of the guidewire. A second hydrophillic coating can then be applied to the elongated shaft and distal shaft section of the guidewire. The second hydrophilic coating can be allowed to cure.
Public/Granted literature
- US20130136847A1 MANUFACTURING PROCESSES FOR MAKING MEDICAL DEVICES HAVING A COATING GRADIENT Public/Granted day:2013-05-30
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