Patient controlled fluid delivery device
First Claim
1. A patient controlled infusion device for the sequential delivery of discrete doses of fluid to a delivery site comprising:
- (a) a device housing having a fluid outlet adapted to be in communication with the delivery site;
(b) a fluid reservoir disposed within said device housing for containing the fluid to be delivered, said fluid reservoir having an outlet in communication with said fluid outlet of said housing;
(c) dispensing means for sequentially dispensing first and second doses of fluid from said outlet of said fluid reservoir; and
(d) an operating and control means operably associated with said dispensing means for controlling the dispensing of fluid from said fluid reservoir, said operating and control means comprising;
(i) dose interval control means for controlling the interval of time between the dispensing of the discrete doses of fluid to the delivery site, said dose interval control means comprising an adjustable dose interval control member carried by said device housing, said dose interval control means further comprising a fluid containing cellular mass, a compressible member operably associated with said fluid containing cellular mass and a fluid flow control means operably associated with said fluid containing cellular mass for controlling fluid flow therefrom; and
(ii) dose volume control means for controlling of the volume of said discrete doses of fluid, said dose volume control means comprising an adjustable dose volume control member carried by said device housing.
5 Assignments
0 Petitions
Accused Products
Abstract
A compact, patient controlled fluid dispenser for use in controllably dispensing fluid medicament at a selected uniform rate. The device is of an all mechanical construction and is ideally suited for the reliable patient administration of pain killing drugs in the home care environment. To positively regulate the patient administration of the medicament, the intervals at which a selected medicament can be administered, as well as the volume of the dose of the medicament to be administered, is preset by the treating physician and, once set, cannot be altered by the patient. More particularly, the device setting can only be operated by a small physician'"'"'s key that remains in the possession and control of the treating physician or health care worker.
-
Citations
34 Claims
-
1. A patient controlled infusion device for the sequential delivery of discrete doses of fluid to a delivery site comprising:
-
(a) a device housing having a fluid outlet adapted to be in communication with the delivery site; (b) a fluid reservoir disposed within said device housing for containing the fluid to be delivered, said fluid reservoir having an outlet in communication with said fluid outlet of said housing; (c) dispensing means for sequentially dispensing first and second doses of fluid from said outlet of said fluid reservoir; and (d) an operating and control means operably associated with said dispensing means for controlling the dispensing of fluid from said fluid reservoir, said operating and control means comprising; (i) dose interval control means for controlling the interval of time between the dispensing of the discrete doses of fluid to the delivery site, said dose interval control means comprising an adjustable dose interval control member carried by said device housing, said dose interval control means further comprising a fluid containing cellular mass, a compressible member operably associated with said fluid containing cellular mass and a fluid flow control means operably associated with said fluid containing cellular mass for controlling fluid flow therefrom; and (ii) dose volume control means for controlling of the volume of said discrete doses of fluid, said dose volume control means comprising an adjustable dose volume control member carried by said device housing. - View Dependent Claims (2, 3, 4)
-
-
5. A patient controlled infusion device for the sequential delivery of discrete doses of fluid to a delivery site comprising:
-
(a) a device housing having a fluid outlet adapted to be in communication with the delivery site; (b) a fluid reservoir disposed within said device housing for containing the fluid to be delivered, said fluid reservoir having an outlet in communication with said fluid outlet of said housing; (c) dispensing means for sequentially dispensing first and second doses of fluid from said outlet of said fluid reservoir, said dispensing means comprising; (i) a patient operated delivery mechanism connected to said device housing for movement between first and second positions; (ii) an operating rod assembly connected to said delivery mechanism for movement within said device housing between first and second locations, said operating rod assembly comprising an operating rod movable between first and second locations, said operating rod having first and second threaded segments; and (iii) a plunger disposed within said fluid reservoir for movement therewithin by movement of said operating rod assembly to cause delivery of fluid to the delivery side; (d) an operating and control means operably associated with said dispensing means for controlling the dispensing of fluid from said fluid reservoir, said operating and control means comprising; (i) dose interval control means for controlling the interval of time between the dispensing of the discrete doses of fluid to the delivery site, said dose interval control means comprising a manually adjustable dose interval control member carried by said device housing, dose interval control means comprising a member threadably connected to said first threaded segment for movement along said operating rod between first and second locations; and (ii) dose volume control means for controlling of the volume of said discrete doses of fluid, said dose volume control means comprising a manually adjustable dose volume control member carried by said device housing for moving said first threaded segment along said operating rod between first and second locations; and (iii) first biasing means for urging said operating rod toward said first position; and (e) first locking means for preventing adjustment of said dose interval control member and said dose volume control member. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A patient controlled infusion device for the sequential delivery of discrete doses of fluid to a delivery site comprising:
-
(a) a device housing having a stop and a fluid outlet adapted to be in communication with the delivery site; (b) a fluid reservoir disposed within said device housing for containing the fluid to be delivered, said fluid reservoir having an outlet in communication with said fluid outlet of said housing; (c) dispensing means for sequentially dispensing first and second doses of fluid from said fluid outlet of said fluid reservoir, said dispensing means comprising; (i) a patient operated delivery mechanism connected to said device housing for movement between first and second positions; and (ii) an operating rod connected to said delivery mechanism for movement within said device housing between first and second locations; and (d) operating and control means operably associated with said dispensing means for controlling the dispensing of fluid from said fluid reservoir, said operating and control means comprising; (i) dose interval control means for controlling the interval of time between dispensing of the discrete doses of fluid to the delivery site, said dose interval control means comprising a manually adjustable, dose interval control member rotatably carried by said device housing, said dose interval control means further comprising a fluid containing cellular mass, a compressible member operably associated with said fluid containing cellular mass, and a fluid flow control means disposed between said fluid containing cellular mass and said compressible member for controlling fluid flow therebetween; and (ii) dose volume control means for controlling the volume of said discrete doses of fluid, said dose volume control means comprising a manually adjustable, dose volume control member rotatably carried by said device housing. - View Dependent Claims (15)
-
-
16. A patient controlled infusion device for the sequential delivery of discrete doses of fluid to a delivery site comprising:
-
(a) a device housing having a stop and a fluid outlet adapted to be in communication with the delivery site; (b) a fluid reservoir disposed within said device housing for containing the fluid to be delivered, said fluid reservoir having an outlet in communication with said fluid outlet of said housing; (c) dispensing means for sequentially dispensing first and second doses of fluid from said outlet of said fluid reservoir, said dispensing means comprising; (i) a patient operated delivery mechanism connected to said device housing for movement between first and second positions; (ii) an operating rod connected to said delivery mechanism for movement within said device housing between first and second locations; and (iii) locking means for preventing movement of said patient operated delivery mechanism toward said second position; and (d) operating and control means operably associated with said dispensing means for controlling of the dispensing of fluid from said fluid reservoir, said operating and control means comprising; (i) dose interval control means for controlling the interval of time between dispensing of the discrete doses of fluid to the delivery site, said dose interval control means comprising a manually adjustable, dose interval control member rotatably carried by said device housing; and
further comprising a fluid containing cellular mass, a compressible member operably associated with said fluid containing cellular mass and fluid flow control means disposed between said fluid containing cellular mass and said compressible member for controlling fluid flow therebetween(ii) dose volume control means for controlling of the volume of said discrete doses of fluid, said dose volume control means comprising a manually adjustable, dose volume control member rotatably carried by said device housing. - View Dependent Claims (17, 18)
-
-
19. A patient controlled infusion device for the sequential delivery of discrete doses of fluid to a delivery site comprising:
-
(a) a device housing having a stop and a fluid outlet adapted to be in communication with the delivery site; (b) a fluid reservoir disposed within said device housing for containing the fluid to be delivered, said fluid reservoir having an outlet in communication with said fluid outlet of said housing; (c) dispensing means for sequentially dispensing first and second doses of fluid from said outlet of said fluid reservoir, said dispensing means comprising; (i) a patient operated delivery mechanism connected to said device housing for movement between first and second positions; (ii) an operating rod connected to said delivery mechanism for movement within said device housing between first and second locations; (iii) a plunger disposed within said fluid reservoir for movement between first and second positions; and (iv) a dosing rod operably associated with said operating rod for movement thereby between first and second locations to move said plunger toward said second position upon said operating rod being moved toward said second location; and (d) operating and control means operably associated with said dispensing means for controlling of the dispensing of fluid from said fluid reservoir, said operating and control means comprising; (i) dose interval control means for controlling the interval of time between dispensing of the discrete doses of fluid to the delivery site, said dose interval control means comprising a manually adjustable, dose interval control member rotatably carried by said device housing, said dose interval control means further including a fluid containing cellular mass and a compressible member operably associated with said fluid containing cellular mass; and (ii) dose volume control means for controlling of the volume of said discrete doses of fluid, said dose volume control means comprising a manually adjustable, dose volume control member rotatably carried by said device housing.
-
-
20. A patient controlled infusion device for the sequential delivery of discrete doses of fluid to a delivery site comprising:
-
(a) a device housing having a stop and a fluid outlet adapted to be in communication with the delivery site; (b) a fluid reservoir disposed within said device housing for containing the fluid to be delivered, said fluid reservoir having an outlet in communication with said fluid outlet of said housing; (c) dispensing means for sequentially dispensing first and second doses of fluid from said outlet of said fluid reservoir, said dispensing means comprising; (i) a patient operated delivery mechanism connected to said device housing for movement between first and second positions; (ii) an operating rod connected to said delivery mechanism for movement within said device housing between first and second locations; and (iii) restraining means associated with said operating rod for restraining said operating rod in said second location; (d) operating and control means operably associated with said dispensing means for controlling of the dispensing of fluid from said fluid reservoir, said operating and control means comprising; (i) dose interval control means for controlling the interval of time between dispensing of the discrete doses of fluid to the delivery site, said dose interval control means comprising a manually adjustable, dose interval control member rotatably carried by said device housing, said dose interval control means further comprising a fluid containing cellular mass and a compressible member operably associated with said fluid containing cellular mass; and (ii) dose volume control means for controlling of the volume of said discrete doses of fluid, said dose volume control means comprising a manually adjustable, dose volume control member rotatably carried by said device housing; and (e) locking means carried by said device for preventing rotation of said manually adjustable dose interval control member and said dose volume control member.
-
-
21. A patient controlled infusion device for the sequential delivery of incremental doses of fluid to a delivery site comprising:
-
(a) a device housing having a body portion having a stop and a forward portion connected to said body portion, said forward portion having a fluid outlet in communication with a hollow cannula connected to said forward portion; (b) a container having a fluid reservoir disposed within said device housing for containing the fluid to be delivered, said fluid reservoir being closed by a septum pierceable by said hollow cannula to place said reservoir in communication with said fluid outlet of said forward portion; (c) dispensing means for sequentially dispensing first and second doses of fluid from said fluid reservoir, said dispensing means comprising; (i) a patient operated delivery mechanism connected to said device housing for movement between first and second positions; (ii) an operating rod assembly connected to said delivery mechanism for movement within said device housing between first and second locations; (iii) a plunger telescopically movable within said fluid reservoir by said operating rod assembly; and (d) operating means operably associated with said dispensing means for controlling the dispensing of fluid from said fluid reservoir, said operating means comprising; (i) dose interval control means for controlling the interval of time between dispensing of the sequential doses of fluid to the delivery site, said dose interval control means comprising a fluid containing cellular mass, a compressible member operably associated with said fluid containing cellular mass, a manually adjustable dose interval control member rotatably carried by said device housing and fluid flow control means disposed between said fluid containing cellular mass and said compressible member for controlling fluid flow therebetween; and (ii) dose volume control means for controlling the volume of said incremental doses of fluid, said dose volume control means comprising a manually adjustable dose volume control member rotatably carried by said device housing. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
-
-
31. A patient controlled infusion device for the sequential delivery of discrete doses of fluid to a delivery site comprising:
-
(a) a device housing having a fluid outlet adapted to be in communication with the delivery site; (b) a fluid reservoir disposed within said device housing for containing the fluid to be delivered, said fluid reservoir having an outlet in communication with said fluid outlet of said housing; (c) dispensing means for sequentially dispensing first and second doses of fluid from said outlet of said fluid reservoir; and (d) an operating and control means operably associated with said dispensing means for controlling the dispensing of fluid from said fluid reservoir, said operating and control means comprising; (i) dose interval control means for controlling the interval of time between the dispensing of the discrete doses of fluid to the delivery site, said dose interval control means comprising an adjustable dose interval control member carried by said device housing, said dose interval control means further comprising a fluid containing compressible cellular structure that can be substantially saturated with a liquid; and (ii) dose volume control means for controlling of the volume of said discrete doses of fluid, said dose volume control means comprising an adjustable dose volume control member carried by said device housing. - View Dependent Claims (32, 33, 34)
-
Specification