Dental anesthetic and delivery injection unit
First Claim
Patent Images
1. An injection device comprising:
- a housing having a pump disposed in said housing, said housing having thereon a first receptacle and a second receptacle; and
a disposable delivery system for delivering a therapeutic agent to a patient, said delivery system including a supply end, a delivery end with a handle having a needle for selective injection of said agent into said patient and a flexible tube extending between said supply end and said delivery end;
wherein said supply end is constructed and arranged to couple to said first receptacle, with said supply end and said pump cooperating to force said agent to flow from said supply end to said delivery end;
said supply end including a cartridge holder adapted to house a cartridge for storing to store said agent.
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Accused Products
Abstract
An improved injection device includes containing a pump and pump control circuitry, a handle with a needle for delivering a therapeutic agent to a patient, a cartridge holding the agent and a tube for delivering the agent from the cartridge to the handle. Preferably the cartridge is disposed in a cartridge holder coupled to the tube. A quick disconnect coupling is provided between the cartridge holder and the housing so that it can be easily mounted thereon. The housing further has a receptacle for receiving and storing the tip of the handle.
73 Citations
37 Claims
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1. An injection device comprising:
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a housing having a pump disposed in said housing, said housing having thereon a first receptacle and a second receptacle; and a disposable delivery system for delivering a therapeutic agent to a patient, said delivery system including a supply end, a delivery end with a handle having a needle for selective injection of said agent into said patient and a flexible tube extending between said supply end and said delivery end; wherein said supply end is constructed and arranged to couple to said first receptacle, with said supply end and said pump cooperating to force said agent to flow from said supply end to said delivery end;
said supply end including a cartridge holder adapted to house a cartridge for storing to store said agent. - View Dependent Claims (2, 3, 4, 5)
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6. An injection device comprising:
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a housing having a pump disposed in said housing, said housing having thereon a receptacle; a disposable delivery system for delivering a therapeutic agent to a patient, said delivery system including a supply end and a handle having a needle for selective injection of said agent into said patient, a flexible tube extending between said supply end and said handle, a cartridge holder associated with said supply end and a replaceable cartridge adapted to hold said agent, said cartridge being disposed in said cartridge holder; and a quick disconnect coupling member for selectively mounting and removing said supply end to and from said housing. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An injection system for delivering a therapeutic agent to a patient, said system comprising:
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a source of therapeutic agent; a delivery member adapted to deliver said agent to said patient; a pump for selectively pumping said agent from said source to said delivery member; an automatic controller for controlling said pump; and a control switching device to define a first and a second mode of operation for said controller; wherein in said first mode of operation said controller operates said pump to cause said agent to flow forward toward said patient; and wherein in said second mode of operation said controller operates said pump to cause said agent to flow backwards, away from said patient, said controller being constructed and arranged to enter into said second mode of operation only a predetermined time after said first mode of operation has been active. - View Dependent Claims (21, 22, 23, 24, 25)
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26. An injection system for delivering a therapeutic agent to a patient, said system comprising:
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a source of therapeutic agent; a delivery member adapted to deliver said agent to said patient; a pump for selectively pumping said agent from said source to said delivery member; an automatic controller for controlling said pump; and a control switch member for actuation by a user; wherein said control switch member has a first and a second position, and wherein, in response to said control switch member being in said first position, said controller operates said pump to deliver said agent at a first rate, and wherein, in response to said control switch member being in said second position, said controller operates said pump to deliver said agent at a second rate. - View Dependent Claims (27, 28, 29, 30, 31)
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32. An injection device comprising:
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a housing having thereon a receptacle; a pump; and a delivery system for delivering a therapeutic agent to a patient, said delivery system including a supply end, a delivery end with a handle having a needle for selective injection of said agent into said patient when said pump is activated, said needle being associated with a protective cover, and a flexible tube extending between said supply end and said delivery end; wherein said supply end is constructed and arranged to couple to said housing; and wherein said receptacle is constructed and arranged to receive said handle for storage by engaging said protective cover, with said handle being removable from said protective cover while said protective cover remains engaged by said receptacle. - View Dependent Claims (33)
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34. An injection system for delivering a therapeutic agent to a patient, said system comprising:
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a source of therapeutic agent; a delivery member adapted to deliver said agent to said patient; a pump for selectively pumping said agent from said source to said delivery member; an automatic controller for controlling said pump; and a control switch member for actuation by a user to actuate said controller, said control switch member including a foot switch coupled to said controller by an air hose, said controller further including a pressure sensor that senses the activation of said foot switch.
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35. An injection system for delivering a therapeutic agent to a patient, said system comprising:
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a source of therapeutic agent; a delivery member adapted to deliver said agent to said patient; a pump for selectively pumping said agent from said source to said delivery member; an automatic controller for controlling said pump; and a control switch member for actuation by a user to actuate said controller, said control switch defining a first mode of operation during which said controller operates said pump to infuse said agent, said control switch defining a second mode of operation, wherein in second mode of operation said controller operates to clean the system. - View Dependent Claims (36, 37)
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Specification