US2017119953A1PendingUtilityA1

Method and Apparatus for Irrigation

Assignee: MEDTRONIC XOMED INCPriority: Oct 30, 2015Filed: Oct 24, 2016Published: May 4, 2017
Est. expiryOct 30, 2035(~9.3 yrs left)· nominal 20-yr term from priority
Inventors:Jie Wen
A61M 1/85A61M 3/0283A61M 3/0262A61M 1/77A61M 2210/0618A61B 90/70A61M 11/007B08B 3/04A61M 2210/0681A61M 39/24A61M 39/10A61M 1/81A61M 5/1424A61M 5/1413A61M 5/14216A61M 2039/2493
49
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Claims

Abstract

Disclosed is an irrigation system. The irrigation system includes a manual pump. The manual pump can provide pressurized liquid through a tube at an outlet.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A system for irrigation of a selected location, comprising:
 a manual pump assembly having a pump barrel forming a volume;   a fluid source fluidly connected to the pump barrel;   a tip having an opening to deliver a selected pressure spray to a surface;   a valve assembly configured to control flow from the fluid source to the pump barrel and from the pump barrel to the tip; and   wherein the manual pump is configured to be powered and operated by a user to at least express material from the pump barrel;   wherein the manual pump is configured to be reciprocally operated by the user to irrigate the selected location with a fluid through the tip.   
     
     
         2 . The system of  claim 1 , further comprising:
 a plunger moveable within the pump barrel between a first barrel end and a second barrel end;   a biasing system to apply a biasing force to bias the plunger towards the first barrel end;   wherein the user overcomes the biasing force of the biasing system to irrigate the selected location by moving the plunger towards the second barrel end.   
     
     
         3 . The system of  claim 1 , wherein the valve assembly includes:
 a first one-way valve configured to control flow from the fluid source to the pump barrel; and   a second one-way valve configured to control flow from the pump barrel to the tip.   
     
     
         4 . The system of  claim 3 , wherein the valve assembly is coupled directly to the pump barrel;
 wherein the first one-way valve opens when the plunger moves toward a first pump barrel end and the second one-way valve opens when the plunger moves toward a second pump barrel end.   
     
     
         5 . The system of  claim 1 , wherein the opening of the tip has a cross-sectional area ratio relative to a cross-sectional area of a tubing extending from the pump volume of about 1:1 to about 1:10,000. 
     
     
         6 . The system of  claim 1 , further comprising:
 a tip tube, wherein the tip extends from a terminal end of the tip tube;   a tip sheath having a selected configuration and an internal passage;   wherein the tip tube is positioned within the tip sheath.   
     
     
         7 . The system of  claim 6 , wherein the selected configuration includes an elongated portion and a curved portion;
 wherein the tip tube conforms to the selected configuration.   
     
     
         8 . The system of  claim 6 , wherein the tip and the tip tube are formed as separate members and connected together for operation of the manual pump. 
     
     
         9 . The system of  claim 1 , further comprising:
 a Y-connection portion having a first cannulated section and a second cannulated section; and   a tip tube, wherein the tip extends from an end of the tip tube;   wherein the tip tube extends through the first cannulated section.   
     
     
         10 . The system of  claim 9 , further comprising:
 a vacuum tube connected to the second cannulated section;   wherein a suction is operable to be formed at or near the tip through the second cannulated section.   
     
     
         11 . A system for irrigation of a selected location, comprising:
 a manual pump assembly having:
 a pump barrel forming a volume between a first barrel end and a second barrel end, 
 a plunger moveable within the pump barrel, and 
 a biasing system to apply a biasing force to bias the plunger towards the first barrel end; 
 a fluid source tube configured to fluidly interconnect a fluid source of fluid and the pump barrel; 
   a tip assembly to deliver a selected material from the pump barrel; and   a valve assembly configured to control flow from the fluid source to the pump barrel and from the pump barrel to the tip assembly;   wherein the manual pump is configured to be reciprocally operated by the user by applying a user force to overcome the biasing force to move the plunger towards a second end and stopping application of the user force to allow the biasing force to move the plunger towards the first end.   
     
     
         12 . The system of  claim 11 , wherein the valve assembly includes:
 a first one-way valve configured to control flow from the fluid source tube into and out of the pump barrel, and   a second one-way valve configured to control flow from out of the pump barrel;   wherein the fluid is controlled by the valve assembly to flow only from the fluid source tube into the pump barrel when the plunger moves towards the first end and only from the pump barrel to the tip when the plunger moves towards the second end.   
     
     
         13 . The system of  claim 11 , further comprising:
 a handle interconnecting the plunger and the pump barrel;   wherein the handle is configured receive the user force to assist the user in overcoming the biasing force by squeezing a first handle portion towards a second handle portion.   
     
     
         14 . The system of  claim 13 , further comprising:
 a direction control grip;   wherein the tip assembly includes:
 a tip tube extending from and fixed to the direction control grip, and 
 a tip extending from the tip tube; 
   wherein the direction control grip is configured to be rotated relative to the tip assembly to rotate the tip around and axis.   
     
     
         15 . The system of  claim 14 , wherein the tip includes an opening configured to form the fluid exiting the tip into a fan shape. 
     
     
         16 . The system of  claim 15 , wherein the tip assembly further includes:
 a Y-connector having a first passage to receive the tip tube and a second passage forming a suction passage.   
     
     
         17 . A method of irrigating a selected location with a manual pump, comprising:
 moving a plunger in a first direction in a pump barrel to draw a liquid from a container through a valve assembly into the pump barrel;   positioning a tip at the selected location;   squeezing a handle manually to move the plunger in a second direction in the pump barrel to express the liquid from the pump barrel through the valve assembly and through the tip at the selected location; and   operating a direction control to move the tip relative to the selected location.   
     
     
         18 . The method of  claim 17 , further comprising:
 holding at least the handle in a hand of a user that is connected to the pump barrel and the plunger.   
     
     
         19 . The method of  claim 18 , wherein moving the plunger in the first direction includes closing a first one-way valve of the valve assembly and opening a second one-way valve of the valve assembly. 
     
     
         20 . The method of  claim 19 , wherein manually moving the plunger in the second direction includes closing the second one-way valve of the valve assembly and opening the first one-way valve of the valve assembly. 
     
     
         21 . The method of  claim 20 , wherein moving the plunger in the first direction in the pump barrel includes allowing a biasing member to bias the plunger in the first direction. 
     
     
         22 . The method of  claim 21 , further comprising:
 continuously irrigating the selected location by repeatedly squeezing the handle to move the plunger in the second direction in the pump barrel to express the liquid and releasing the handle to allow the biasing member to apply the biasing force to move the plunger in the first direction in the pump barrel.   
     
     
         23 . The method of  claim 22 , wherein positioning the tip at the selected location includes positioning the tip through a nasal passage;
 wherein the tip is configured to irrigate the nasal passage or a sinus cavity.

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