Invention Grant
- Patent Title: Dual thermal coefficient dispensing chamber
- Patent Title (中): 双热系数分配室
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Application No.: US11777408Application Date: 2007-07-13
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Publication No.: US08821440B2Publication Date: 2014-09-02
- Inventor: Robert Sanchez , James Foster , Cesario Dos Santos
- Applicant: Robert Sanchez , James Foster , Cesario Dos Santos
- Applicant Address: US TX Fort Worth
- Assignee: Alcon Research, Ltd.
- Current Assignee: Alcon Research, Ltd.
- Current Assignee Address: US TX Fort Worth
- Agent Kenneth D. Bassinger
- Main IPC: A61F7/12
- IPC: A61F7/12 ; A61M1/10 ; A61M5/145 ; A61F9/00 ; A61M5/48 ; A61M5/315

Abstract:
An injection device has a dispensing chamber housing, a plunger, and a temperature control device. The dispensing chamber housing has a first part and a second part. The first part is thermally coupled to a needle. The second part is thermally coupled to the first part. The second part has an inner surface and an outer surface. The inner surface partially defines a dispensing chamber for holding a quantity of a substance. The plunger is engaged with an inner surface of the dispensing chamber housing, is capable of sliding in the dispensing chamber housing, and is fluidly sealed to the inner surface of the dispensing chamber housing. The temperature control device at least partially surrounds the dispensing chamber housing and is capable of altering a temperature of the substance in the dispensing chamber. The second part has a greater thermal coefficient than the first part.
Public/Granted literature
- US20080015545A1 Dual Thermal Coefficient Dispensing Chamber Public/Granted day:2008-01-17
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