Ophthalmic surgical fluid handling cassette

• US 9,974,686 B2
• Filed: 06/26/2013
• Issued: 05/22/2018
• Est. Priority Date: 06/26/2012
• Status: Active Grant

• Current Assignee: Synergetics Incorporated
• Original Assignee: Synergetics Incorporated
• Inventors: Easley, James, Boswell, John
• Primary Examiner(s): Zalukaeva, Tatyana
• Assistant Examiner(s): Weng, Kai
• Application Number:
  US14/411,336
• Publication Number:
  US 20150335473A1
• Time in Patent Office: 1,791 Days
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61F 9/007 Methods or devices for eye surgery
• CPC Class Codes: A61F 9/00736 Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments A61F9/008 takes precedence
• CPC Class Codes: A61M 1/60 Containers for suction drainage, adapted to be used with an external suction source containers not adapted for subjection to vacuum A61M1/69
• CPC Class Codes: A61M 1/72 Cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 1/77 Suction-irrigation systems aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463
• CPC Class Codes: A61M 2205/128 with incorporated valves
• CPC Class Codes: A61M 2205/3389 Continuous level detection A61M2205/3393 takes precedence
• CPC Class Codes: A61M 2210/0612 Eyes
• CPC Class Codes: A61M 3/0201 Cassettes therefor
• CPC Class Codes: F04C 2270/041 Controlled or regulated

Abstract

An ophthalmic system (100) having an ophthalmic cassette (104) for operative engagement with an ophthalmic apparatus (102) is disclosed. The ophthalmic cassette (104) includes a cassette body (108) having a manifold (124) defining an inlet port (180) in fluid flow communication with first and second fluid pathways (120/122) which are in selective fluid flow communication with respective first and second storage chambers (116/118) such that fluid enters either the first storage chamber (116) or the second storage chamber (118). The ophthalmic apparatus (102) is operable to permit alternate fluid flow communication between the inlet port (108) and either the first storage chamber (116) or the second storage chamber (118) during operation of the ophthalmic system (100).

Claims

1. An ophthalmic cassette (104) comprising:

a cassette body (108) comprising a manifold (124) defining an inlet port (180) in fluid flow communication with a first fluid pathway (120) that is in fluid flow communication with a first fluid inlet portion (148) and a second fluid pathway (122) that is in fluid flow communication with a second fluid inlet portion (150);

wherein the first fluid pathway (120) and second fluid pathway (122) are configured to permit alternate fluid flow communication between the inlet port (180) and either the first fluid inlet portion (148) or the second fluid inlet portion (150) such that either the first fluid inlet portion (148) or the second fluid inlet portion (150) is in fluid flow communication with the inlet port (180),

a first vacuum pathway (160) and a second vacuum pathway (162) in fluid flow communication with the first fluid inlet portion (148) and the second fluid inlet portion (150), respectively.

2. The ophthalmic cassette (104) of claim 1, further comprising:

a first storage chamber (116) in selective fluid flow communication with the first fluid pathway (120); and

a second storage chamber (118) in selective fluid flow communication with the second fluid pathway (122);

wherein the manifold (124) is configured to permit fluid flow communication between the inlet port (180) and either the first fluid pathway (120) or the second fluid pathway (122) such that either the first storage chamber (116) or the second storage chamber (118) is in fluid flow communication with the inlet port (180).

3. The ophthalmic cassette (104) of claim 2, wherein the first storage chamber (116) and the second storage chamber (118) each define an elongated body (140) defining an open end (142) and a closed end (144).

4. The ophthalmic cassette (104) of claim 2, wherein first storage chamber (116) and the second storage chamber (118) are detachable from the cassette body (108).

5. The ophthalmic cassette (104) of claim 4, the cassette body (108) further comprising:

a first receptacle (112) configured to receive the first storage chamber (116) for establishing fluid flow communication between the first storage chamber (116) and the first fluid pathway (120); and

a second receptacle (114) configured to receive the second storage chamber (118) for establishing fluid flow communication between the second storage chamber (118) and the second fluid pathway (122).

6. The ophthalmic cassette (104) of claim 1, wherein when the first fluid pathway (120) is in fluid flow communication with the inlet port (180) the second fluid pathway (122) is not in fluid flow communication with the inlet port (180), and when the second fluid pathway (122) is in fluid flow communication with the inlet port (180) the first fluid pathway (120) is not in fluid flow communication with the inlet port (180).

7. The ophthalmic cassette (104) of claim 1, further comprising:

a first valve member (187/196) in communication with the first fluid pathway (120) for preventing or permitting fluid flow communication between the first fluid pathway (120) and the first storage chamber (116); and

a second valve member (187/198) in communication with the second fluid pathway (122) for preventing or permitting fluid flow communication between the second fluid pathway (122) and the second storage chamber (118).

8. The ophthalmic cassette (104) of claim 7, wherein the first valve member (187/196) and the second valve member (187/198) are configured to alternate between a closed position which prevents fluid flow communication and an open position for permitting fluid flow communication in alternating sequence relative to each other such that when the first valve member (187/196) is in the closed position, the second valve member (187/198) is in the open position and when the first valve member (187/196) is in the open position, the second valve member (187/198) is in the closed position.

9. The ophthalmic cassette (104) of claim 2, wherein the cassette body (108) is configured to be engaged to an apparatus (102) having a sensor system (126) for transmitting a detection signal (129/131) for detecting the presence or absence of a fluid in the first storage chamber (116) and the second storage chamber (118).

10. The ophthalmic cassette (104) of claim 9, wherein a portion of the first storage chamber (116) and a portion of the second storage chamber (118) is transparent to the detection signal (129/131).

11. The ophthalmic cassette (104) of claim 1, the cassette body (108) further comprising:

a tongue member (172) extending from the cassette body (108), wherein the tongue member (172) is configured to engage a latching mechanism (106) of an apparatus (102) for engaging the ophthalmic cassette (104) to the apparatus (102).