Pulse fluid infusion systems
First Claim
1. A system for infusing a fluid into the vascular system of the body of a patient, the system comprising:
- (a) a hollow infusion catheter having a body wall extending from a proximal end to an opposing distal end, the distal end having a plurality of infusion holes extending through the body wall; and
(b) pump means fluid coupled to the proximal end of the infusion catheter for repeatedly dispensing predetermined amounts of the fluid into the infusion catheter, the pump means including a barrel, a plunger slidably received within the barrel, and means for automatically retracting the plunger within the barrel after the plunger is manually advanced within the barrel.
2 Assignments
0 Petitions
Accused Products
Abstract
A fluid infusion system includes a pump having a body that slidably interacts with a handle. The body includes a valve housing fluid coupled with an inlet passageway, an outlet passageway, and a dispensing barrel. A finger rest rigidly projects from the dispensing barrel. A loading chamber is recessed within the finger rest and is configured to receive a fluid supply syringe. A plunger, mounted to the handle, is slidably received within the dispensing barrel. As the plunger is advanced within the barrel, fluid is dispensed from the pump. As the plunge is retracted within the barrel, the barrel is automatically filed with a fluid. The nozzle of the pump is fluid coupled to a hemostasis valve which is in turn fluid coupled to an infusion catheter. The infusion catheter has a distal end with an enlarged tip opening and a plurality of small infusion holes extending through the side thereof. An annular sensing ridge radially inwardly projects from the interior of the catheter at the tip opening. An occluding wire has an enlarged occluding ball positioned at the end thereof and is configured to occlude the distal end of the catheter. Projecting from the occluding ball on the side opposite of the positioning wire is a coiled spring wire. The spring wire vibrates against the sensing ridge as it passes therethrough.
92 Citations
41 Claims
-
1. A system for infusing a fluid into the vascular system of the body of a patient, the system comprising:
-
(a) a hollow infusion catheter having a body wall extending from a proximal end to an opposing distal end, the distal end having a plurality of infusion holes extending through the body wall; and (b) pump means fluid coupled to the proximal end of the infusion catheter for repeatedly dispensing predetermined amounts of the fluid into the infusion catheter, the pump means including a barrel, a plunger slidably received within the barrel, and means for automatically retracting the plunger within the barrel after the plunger is manually advanced within the barrel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A system for infusing a fluid into the vascular system of the body of a patient, the system comprising:
-
(a) a hollow infusion catheter having a body wall extending from a proximal end to an opposing distal end, the distal end having a plurality of infusion holes extending through the body wall; (b) a fluid supply syringe comprising a barrel configured to receive the fluid and a plunger slidably received within the barrel; and (c) pump means removably fluid coupled to the infusion catheter and the supply syringe for repeatedly pumping predetermined amounts of fluid from the supply syringe to the infusion catheter, the pump means including a loading chamber in which the supply syringe is positioned and substantially enclosed when the supply syringe is fluid coupled with the pump means. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
-
-
20. A system for infusing a fluid into the vascular system of the body of a patient, the system being manually operated by a user'"'"'s hand having fingers and a palm, the system comprising:
-
(a) an infusion catheter having a body wall bounding a lumen extending from a proximal end to an opposing distal end, the distal end having a plurality of infusion holes extending through the body wall to the lumen; and (b) pump means fluid coupled to the proximal end of the infusion catheter for repeatedly dispensing predetermined amounts of the fluid into the infusion catheter, the pump means including; (i) a dispensing barrel having an exterior surface and a chamber each extending between a first end and an opposing free second end; (ii) an elongated finger rest rigidly mounted to the dispensing barrel; (iii) a plunger having a tip end and an opposing tail end, the tip end being slidably received within the second end of the barrel; (iv) a handle mounted on the plunger; and (v) regulating means partially mounted on the exterior of the dispensing barrel for selectively controlling how far the plunger can slide within the dispensing barrel. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
-
-
33. A system for infusing a fluid into the vascular system of the body of a patient, the system comprising:
-
(a) an infusion catheter having a body wall with an inner surface bounding a lumen, the lumen extending from a proximal end to a tip opening at an opposing distal end, a plurality of infusion holes extending through the body wall to the lumen at the distal end; (b) an occluding wire comprising a thin elongated placement wire having an enlarged occluding ball positioned at the end thereof; (c) sensing means for tactually feeling when the occluding ball advanced within the infusion catheter is approaching the tip opening; and (d) pump means fluid coupled to the proximal end of the infusion catheter for repeatedly dispensing predetermined amounts of the fluid into the infusion catheter. - View Dependent Claims (34, 35, 36, 37)
-
-
38. A system for infusing a fluid into the vascular system of the body of a patient, the system comprising:
-
(a) a hand operated pump comprising; (i) a body including a valve housing fluid coupled to an inlet passageway, an outlet passageway, and a dispensing barrel, a loading chamber being recessed within the body and being fluid coupled with the inlet passageway; (ii) a handle slidably attached to the body; (iii) a plunger mounted to the handle and slidably received within the barrel; and (iv) a spring disposed between the handle and the body; (b) an infusion catheter having a body wall with inner surface bounding a lumen, the lumen extending from a proximal end to a tip opening at an opposing distal end, a plurality of infusion holes extending through the body wall to the lumen at the distal end; (c) a hemostasis valve removably fluid coupled between the outlet passageway of the pump and the proximal end of the infusion catheter; and (b) an occluding wire comprising a thin elongated positioning wire having an enlarged occluding ball positioned at the end thereof and a coiled spring wire projecting from the occluding ball at the side opposite the positioning wire, the occluding wire being configured to be received within the infusion catheter through the hemostasis valve. - View Dependent Claims (39, 40)
-
-
41. A method for infusing a fluid into the vascular system of a patient, the method comprising the steps of:
-
(a) inserting a distal end of an infusion catheter into the vascular system of a patient, the infusion catheter having a lumen longitudinally extending from a proximal end to the distal end, the distal end of the lumen communicating with the exterior through a tip opening, wherein a plurality of infusion holes extend from the exterior to the lumen along the distal end of the catheter; (b) attaching a hemostasis valve to the proximal end of the infusion catheter; (c) fluid coupling a hand pump to the hemostasis valve, the hand pump including a barrel, a plunger slidably received within the barrel, and means for automatically retracting the plunger within the barrel after the plunger is manually advanced within the barrel, the barrel of the pump being in fluid communication with a fluid source; (d) advancing the distal end of an occluding wire into the infusion catheter through the hemostasis valve so as to seal the distal end of the lumen closed, the occluding wire including an elongated positioning wire having an enlarged occluding ball positioned at the end thereof, and (e) operating the pump to dispense fluid from the fluid source into the infusion catheter.
-
Specification