Injector device for placing a subcutaneous infusion set
First Claim
1. An injector device used for transcutaneously placing an insertion needle of a medical device through the skin of a patient, said injector device comprising:
- a molded device housing,a molded plunger for inserting said medical device movably received within the device housing for movement between an advanced position and a retracted position,a lock for releasably locking said plunger in said retracted position, said device housing being manually deformable to effect release of said plunger,a drive including a spring for urging the plunger from the retracted position towards the advanced position,wherein the drive comprises a plurality of individual flexible plastics members, each member being connected with the plunger and with the device housing, said plastics members forming said spring, andwherein said insertion needle is hollow and has a lateral opening near said plunger.
6 Assignments
0 Petitions
Accused Products
Abstract
An injector device for transcutaneously placing a hollow cannula of a subcutaneous infusion set is disclosed. The injector device includes a plunger slidably received within the device housing for movement between an advanced position and a retracted position, the plunger having an insertion needle secured thereto by a stable connection preventing loss of the insertion needle during use of the device. The insertion needle receives and supports the cannula of the subcutaneous infusion set in a position with the cannula oriented for transcutaneous placement upon movement of the plunger from the retracted position to the retracted position.
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Citations
28 Claims
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1. An injector device used for transcutaneously placing an insertion needle of a medical device through the skin of a patient, said injector device comprising:
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a molded device housing, a molded plunger for inserting said medical device movably received within the device housing for movement between an advanced position and a retracted position, a lock for releasably locking said plunger in said retracted position, said device housing being manually deformable to effect release of said plunger, a drive including a spring for urging the plunger from the retracted position towards the advanced position, wherein the drive comprises a plurality of individual flexible plastics members, each member being connected with the plunger and with the device housing, said plastics members forming said spring, and wherein said insertion needle is hollow and has a lateral opening near said plunger. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An injector device used for transcutaneously placing an insertion needle of a medical device through the skin of a patient, said injector device comprising:
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a molded device housing, a molded plunger for inserting said medical device movably received within the device housing for movement between an advanced position and a retracted position, a lock for releasably locking said plunger in said retracted position, said device housing being manually deformable to effect release of said plunger, a drive including a spring for urging the plunger from the retracted position towards the advanced position, wherein the drive comprises a plurality of individual flexible plastics members, each member being connected with the plunger and with the device housing, said plastics members forming said spring, and wherein said medical device comprises a tubing, said injector device housing including a space for accommodating said tubing. - View Dependent Claims (8)
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9. An injector device for a medical device, comprising:
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a molded device housing; a molded plunger for inserting said medical device movably received within the device housing for movement between an advanced position and a retracted position; a lock for releasably locking said plunger in said retracted position, said device housing being manually deformable to effect release of said plunger; and a drive including a spring for urging the plunger from the retracted position towards the advanced position; wherein the drive comprises a plurality of individual flexible plastics members, said plastics members forming said spring, each member being connected with the plunger and with the device housing, and each flexible plastics member is formed as a strip, the injection device including at least two such strips, said two strips extending in a common plane around a respective part of said periphery of said plunger, and two further strips extending in a second plane around a respective part of said periphery, in said advanced position of said plunger. - View Dependent Claims (10)
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11. An injector device assembly, comprising:
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an infusion set including a housing and a hollow cannula, a molded device housing, a cover member removably secured to said device housing, said cover member covering an end of said device housing, a molded plunger movably received within said device housing for movement between an advanced position and a retracted position, a lock for releasably locking said plunger in said retracted position, said device housing being manually deformable from a first geometrical housing configuration to a second geometrical housing configuration to effect release of said plunger, and a drive for urging said plunger from the retracted position towards said advanced position. - View Dependent Claims (12, 13, 14)
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15. An injector device assembly, comprising:
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an infusion set including a housing and a hollow cannula; a molded device housing; a cover member removably secured to said device housing, said cover member covering an end of said device housing; a molded plunger movably received within said device housing for movement between an advanced position and a retracted position; a lock for releasably locking said plunger in said retracted position, said device housing being manually deformable from a first geometrical housing configuration to a second geometrical housing configuration to effect release of said plunger; and a drive for urging said plunger from the retracted position towards said advanced position; wherein said device housing includes a space for accommodating a tubing that forms part of said infusion set for delivery of medication to said hollow cannula.
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16. An injector device assembly, comprising:
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an infusion set including a housing and a hollow cannula; a molded device housing; a cover member removably secured to said device housing, said cover member covering an end of said device housing; a molded plunger movably received within said device housing for movement between an advanced position and a retracted position; a lock for releasably locking said plunger in said retracted position, said device housing being manually deformable from a first geometrical housing configuration to a second geometrical housing configuration to effect release of said plunger; a drive for urging said plunger from the retracted position towards said advanced position; and indicia relating to the shelf life of said assembly on said cover member, and wherein the releasable cover member assures sterile conditions of the infusion set prior to releasing the cover member. - View Dependent Claims (17)
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18. An injector device assembly, comprising:
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an infusion set including a housing and a hollow cannula; a molded device housing; a cover member removably secured to said device housing, said cover member covering an end of said device housing; a molded plunger movably received within said device housing for movement between an advanced position and a retracted position; a lock for releasably locking said plunger in said retracted position, said device housing being manually deformable from a first geometrical housing configuration to a second geometrical housing configuration to effect release of said plunger; and a drive for urging said plunger from the retracted position towards said advanced position, said plunger having an insertion needle secured thereto by a stable connection preventing loss of said insertion needle during use of said injector device, said insertion needle extending through said cannula with the cannula oriented for transcutaneous placement upon movement of the plunger from the retracted position to the advanced position, said insertion needle secured to said plunger being removable from said cannula while maintaining the transcutaneous placement of the cannula. - View Dependent Claims (19, 20, 21)
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22. An injector device assembly comprising:
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an infusion set including at least a housing and a hollow cannula, a molded device housing receiving at least a part of said infusion set, said part of said infusion set positioned removably from and within said device housing; a molded plunger movably received within said device housing for transcutaneous placement of said hollow cannula by movement of said plunger between an advanced position and a retracted position, a lock for releasably locking said plunger in said retracted position, a drive including a spring for urging the plunger from the retracted position towards the advanced position, a cover removably connected to a front end portion of said housing and covering an opening defined in the front end portion of said housing, said cover receiving a part of said infusion set. - View Dependent Claims (23, 24, 25, 26)
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27. An injector device assembly comprising:
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an infusion set including at least a housing and a hollow cannula, a molded device housing receiving at least a part of said infusion set, a molded plunger movably received within said device housing for transcutaneous placement of said hollow cannula by movement of said plunger between an advanced position and a retracted position, a lock for releasably locking said plunger in said retracted position, a drive including a spring for urging the plunger from the retracted position towards the advanced position, a cover removably connected to a front end portion of said housing and covering an opening defined in the front end portion of said housing, said cover receiving a part of said infusion set, wherein said drive comprises a plurality of individual flexible plastics members, each member connected with the plunger and with the device housing. - View Dependent Claims (28)
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Specification