Fluid delivery device with positionable tube

Abstract

A fluid delivery device includes a tube coupled to an axial manipulator. The axial manipulator includes an elongate member arranged to move axially in a housing. The tube is in fluid communication with a fluid diverter which is arranged to move axially in the housing upon axial movement of the elongate member. Seals are provided to prevent fluid from leaking out of the housing. A fluid port is in fluid communication with the tube via the fluid diverter, such that fluid can flow in and out of the tube via the fluid port and the fluid diverter.

Claims

1. A fluid delivery device comprising: a tube coupled to an axial manipulator, said axial manipulator comprising an elongate member arranged to move axially in a housing and said tube being in fluid communication with a fluid diverter which is arranged to move axially in said housing upon axial movement of said elongate member; seals configured to prevent fluid from leaking out of said housing; and a fluid port in fluid communication with said tube via said fluid diverter, such that fluid can flow in and out of said tube via said fluid port and said fluid diverter, and wherein a proximal end of said tube is received in a cutout distal portion of said axial manipulator, and wherein said fluid diverter is located between a distal end of said elongate member and a proximal end of said tube.

2. The fluid delivery device according to claim 1, wherein said elongate member is not hollow.

3. The fluid delivery device according to claim 1, wherein said elongate member is coupled to a manipulation handle.

4. The fluid delivery device according to claim 3, wherein said manipulation handle is rotatable to move said elongate member axially with respect to said housing.

5. The fluid delivery device according to claim 3, wherein said manipulation handle comprises markings to indicate axial positioning of said tube.

6. The fluid delivery device according to claim 1, wherein said fluid diverter comprises a first passage in fluid communication with said fluid port, a second passage in fluid communication with a proximal end of said tube and a third passage in fluid communication with fluid located around an outer contour of said elongate member.

7. The fluid delivery device according to claim 1, wherein a portion of said elongate member is located inside a plurality of coils and some of said coils are coupled to said tube.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present invention will be understood and appreciated more fully from the following detailed description taken in conjunction with the drawings in which:

(2) FIG. 1A is a simplified illustration of an obstruction device and delivery system of the prior art U.S. Pat. No. 9,125,660;

(3) FIGS. 1B and 1C are simplified illustrations of using the delivery system to inflate distal and proximal balloons, respectively, of the obstruction device of the prior art U.S. Pat. No. 9,125,660;

(4) FIG. 2 is a simplified, exploded illustration of a fluid delivery device, constructed and operative in accordance with an embodiment of the present invention;

(5) FIG. 2A is a simplified sectional illustration of the fluid delivery device, taken along lines A-A in FIG. 2;

(6) FIG. 2B is an enlarged view of the distal end of the device of FIG. 2A;

(7) FIG. 3 is a simplified illustration of the fully assembled fluid delivery device;

(8) FIG. 3A is a simplified sectional illustration of the fluid delivery device, taken along lines A-A in FIG. 3;

(9) FIG. 3B is an enlarged view of the distal end of the device of FIG. 3A;

(10) FIG. 3C is an enlarged view of the proximal end of the device of FIG. 3A;

(11) FIG. 4 is another simplified illustration of the fully assembled fluid delivery device;

(12) FIG. 4A is a simplified sectional illustration of the fluid delivery device, taken along lines A-A in FIG. 4.

DETAILED DESCRIPTION OF EMBODIMENTS

(13) Reference is now made to FIGS. 2-3C, which illustrate a fluid delivery device 50, constructed and operative in accordance with an embodiment of the present invention.

(14) Fluid delivery device 50 includes a tube 52 coupled to an axial manipulator 54. The axial manipulator 54 includes an elongate member 56 arranged to move axially in a housing 58. The axial manipulator 54 may further include a manipulation handle 60 coupled to elongate member 56.

(15) The manipulation handle 60 may be connected by a threaded connection to housing 58, such as by engagement of one or more male threads 61 with female threads 62 (FIG. 3C). Rotation of the manipulation handle 60 moves the elongate member 56 axially with respect to the housing 58.

(16) In accordance with a non-limiting embodiment of the present invention the elongate member 54 is not hollow, such as but not limited to, a rigid solid rod or the like, e.g., made of stainless steel or other suitable material

(17) Tube 52 may be in fluid communication with a fluid diverter 64 (FIG. 3B) which is arranged to move axially in the housing 58 upon axial movement of the elongate member 54. Fluid diverter 64 may be located between a distal end of the elongate member 56 and a proximal end of the tube 52.

(18) Fluid diverter 64 may include a first passage 64A in fluid communication with a fluid port 66 (such as a luer connector) affixed to housing 58. Fluid diverter 64 may include a second passage 64B in fluid communication with a proximal end of the tube 52 and a third passage 64C in fluid communication with fluid located around an outer contour of the elongate member 56. A spherical element 67 may be located in the center of fluid diverter 64 to help divert the fluid flow into tube 52.

(19) Different seals may be provided to prevent fluid from leaking out of housing 58, such as seal 70 on tube 52 and seal 72 on elongate member 56. When introducing fluid towards tube 52, fluid enters fluid port 66 and flows via first passage 64A to fluid diverter 64. Most of the fluid is diverted directly via second passage 64B into the proximal end of tube 52. Some of the fluid flows via third passage 64C to the gap around the outer contour of the elongate member 56. However, this fluid is trapped between seals 70 and 72 and cannot leak out of housing 58, so that most of the trapped fluid eventually enters tube 52. The same holds true when drawing fluid from tube 52.

(20) Accordingly, fluid port 66 is in fluid communication with tube 52 via fluid diverter 64, such that fluid can flow in and out of tube 52 via fluid port 66 and fluid diverter 64.

(21) In accordance with a non-limiting embodiment of the present invention a portion of the elongate member 56 is located inside a plurality of coils 74 (FIGS. 2B and 3B). Some of the coils 74 may be coupled to tube 52 via a threaded insert 75 (FIG. 3B). As seen in FIG. 3B, a sleeve 76 may be placed between elongate member 56 and coils 74.

(22) In accordance with a non-limiting embodiment of the present invention the manipulation handle 60 may include one or more markings 78 to indicate axial positioning of tube 52.