EP0946224A1 - Systeme d'identification de cassette de prelevement de liquides - Google Patents

Systeme d'identification de cassette de prelevement de liquides

Info

Publication number
EP0946224A1
EP0946224A1 EP98953291A EP98953291A EP0946224A1 EP 0946224 A1 EP0946224 A1 EP 0946224A1 EP 98953291 A EP98953291 A EP 98953291A EP 98953291 A EP98953291 A EP 98953291A EP 0946224 A1 EP0946224 A1 EP 0946224A1
Authority
EP
European Patent Office
Prior art keywords
fluid collection
collection cassette
housing
cassette
sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98953291A
Other languages
German (de)
English (en)
Inventor
James T. Perkins
Peter Francis Appelbaum
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bausch and Lomb Surgical Inc
Original Assignee
Bausch and Lomb Surgical Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bausch and Lomb Surgical Inc filed Critical Bausch and Lomb Surgical Inc
Publication of EP0946224A1 publication Critical patent/EP0946224A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/60—Containers for suction drainage, adapted to be used with an external suction source
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/72—Cassettes forming partially or totally the fluid circuit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/77—Suction-irrigation systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • A61M3/02—Enemata; Irrigators
    • A61M3/0201—Cassettes therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007—Methods or devices for eye surgery
    • A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/12—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/12—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit
    • A61M2205/123—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit with incorporated reservoirs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/14—Detection of the presence or absence of a tube, a connector or a container in an apparatus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/60—General characteristics of the apparatus with identification means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/60—General characteristics of the apparatus with identification means
    • A61M2205/6063—Optical identification systems

Definitions

  • This invention relates to fluid collection cassettes used in surgical systems and, more particularly, to a scheme for identifying particular fluid collection cassettes.
  • Ophthalmic microsurgical systems typically are classified in accordance with the surgical area of the eye to which the system is directed. Therefore, certain ophthalmic microsurgical systems are considered to be anterior systems, while others are considered to be posterior systems. Occasionally, these systems may be combined into one system which operates in both the anterior and posterior regions of the eye.
  • some type of fluid collection reservoir is utilized to collect fluid byproducts of the surgical operation.
  • the fluid reservoir may take various forms.
  • One form which is well known in the art is a fluid collection cassette which is a hard plastic cassette defining a fluid collection reservoir.
  • the prior art associated with such fluid collection cassettes utilize a reflux bulb member attached at one end to the inlet of the fluid collection cassette and at the other end to a tube which is itself connected to the hand piece.
  • the volume contained within the posterior surgery reflux bulb is approximately 1/10 (one tenth) the volume of the anterior reflux bulb. This difference in volumes is made necessary from the very nature of the surgery itself.
  • the fluid line between the handpiece and the fluid collection cassette may occasionally become clogged.
  • a preferred way to unclog the line is to exert a back pressure pulse within the fluid line. This is accomplished by punching a first finger down onto a first portion of the reflux bulb, to pinch off and separate the fluid line into two parts. A second finger immediately adjacent the first finger, between the first finger and the handpiece, descends to also pinch a portion of the fluid line. When the second finger descends, back pressure is exerted along the length of the fluid line towards the handpiece and "blows out” or unblocks the fluid line.
  • the posterior reflux bulb volume is necessarily smaller than the anterior reflux bulb volume because posterior surgery occurs in the retinal portions of the eye.
  • the cross-sectional area of the fluid line comprehended by the posterior reflux bulb is sized much smaller than the volume of the reflux bulb used with anterior surgery.
  • the posterior reflux bulb will eject a much smaller stream of fluid in order to unclog the fluid line, which in posterior surgery may contain Balanced Salt Solution (BSS), vitreous, and blood, and in anterior surgery may comprise (BSS) and emulsified cataract.
  • BSS Balanced Salt Solution
  • vitreous vitreous
  • blood and in anterior surgery may comprise (BSS) and emulsified cataract.
  • each type of reflux bulb is given a specific color.
  • the color of the reflux bulb is yellow.
  • the color of the reflux is blue. Ophthalmic microsurgical systems are unable to distinguish automatically
  • the invention is a method of identifying the type or class of a particular fluid collection cassette, such as posterior or anterior cassettes.
  • a fluid collection cassette has a material disposed on, within, or inside it in a predetermined location.
  • a sensor attached to the housing senses the existence, or non-existence of the material and sends a signal
  • Two separate predetermined locations may be used, together with two sets of material and two sensors for a posterior reflux bulb, whereas a single predetermined location, material and sensor may be utilized to covey the existence of an anterior reflux bulb.
  • the identification system may be used to guarantee that the cassette originated from a source of known quality.
  • Figure 1 illustrates an exploded view of a fluid collection cassette of the present invention
  • Figure 2 illustrates the fluid collection cassette of the present invention disposed within a housing
  • Figure 3 illustrates an exploded view of a fluid collection cassette of another embodiment of the present invention
  • Figure 4 illustrates the fluid collection cassette of Figure 3 disposed within a housing
  • Figure 5 illustrates another embodiment of a fluid collection cassette of the present invention.
  • Figure 6 illustrates yet another embodiment of a fluid collection cassette of the present invention.
  • Fluid collection cassette 10 comprises a main body portion 12, an inlet tube barb 14, an outlet tube barb 16, outlet tube portion 18, and outlet tube adapter 20.
  • outlet tube adapter 20 is provided with a stem 22 which is press fit into outlet tube portion 18.
  • outlet tube adapter 20 may be provided with a stem 22 which is threaded (not shown) to mate with matching threaded portion (not shown) of outlet tube portion 18.
  • a reflux bulb shown generally at 26, comprises first end shown generally at 28 located in first body portion shown generally at 30, second body portion shown generally at 32, third body portion shown generally at 34, and second end shown generally 36 located in third body portion 34.
  • a first material 40 is disposed on fluid collection cassette 10.
  • a second material is disposed on fluid collection cassette 10.
  • first material 40 and second material 44 are both metal strips, metal circles, or other geometric shape made from metal to permit use in connection with a capacitive proximity switch.
  • first and second materials, 40, 44 are of a material which would permit an alternate type of sensor to determine the existence or non-existence of first material 40 and second material 44 at first predetermined location 38 and second predetermined location 42, respectively.
  • First material 40 and second material 44 may be disposed in fluid collection cassette 10 (discussed in further detail below) which would raise the manufacturing cost, but would provide a greater guarantee of overall integrity.
  • first material 40 and second material 44 are both disposed on fluid collection cassette 10, preferably by adhesive, there is always some chance that one of the materials, 40, 44, could become disassociated from fluid collection cassette 10. Indeed, as shown in Figures 1 and 2, first material 40 has only a portion thereof adhesively fixed to cassette 10, with the remaining portion freestanding.
  • Second material 44 is similary situated as shown in Figure 1 , although the view of Figure 2 does not permit a clear showing of the freestanding aspect.
  • Reflux bulb 26 may assume a square cross-section measuring 5/16 (five- sixteenth) inch on each side.
  • fluid collection cassette 10 is disposed within housing 56.
  • Housing 56 is located within an ophthalmic microsurgical system. Attached to housing 56 is a first sensor 58 and a second sensor 60.
  • sensors, 58-60 are preferably capacitive proximity switches and may be obtained readily from many electrical equipment manufacturers such as Balluff, Inc. of Florence, Kentucky. However, first and second sensors, 58-60, may also be of the sonic type (and the materials, 40, 44, respectively, suitable for reflecting sonic waves), or may be of the light (LED, laser, etc.) type (and the materials, 40, 44, respectively, suitable for reflecting light waves.
  • first and second sensors, 58-60 form the first side of a capacitor, respectively, and first and second materials, 40, 44 form the second side of a capacitor, respectively.
  • first and second sensors, 58-60 emit a signal such as light, a radio frequency, or some other frequency that his reflected back from first and second materials 40, 44, and sensed by sensors 58 - 60.
  • first and second sensors, 58-60 can sense the existence or non-existence of first material 40 and second material 44.
  • the existence or non-existence information is communicated from each sensor 58-60 to a controller which can act on this information and either enable or disable the operation of the ophthalmic microsurgical machine, using a logical well known in the art.
  • Figures 3 and 4 illustrate an alternative embodiment of the present invention in which the first predetermined location 38 of first material 40 is at a different location than that indicated in Figures 1 and 2.
  • Figures 3 and 4 illustrate second predetermined location 42 of second material 44 is placed at a different location than that indicated in Figures 1 and 2.
  • first material 40 and second material 44 of Figures 3 and 4 are round disks geometrically, as opposed to arch-shaped disks suggested in Figure 1. Because of the different locations in Figures 3 and 4, the location of first sensor 58 and second sensor 60 have also been moved consistent with the location of first predetermined location 38 and second predetermined location 42.
  • Figure 5 illustrates another alternative embodiment which illustrates that first material 40 may be embedded or encapsulated within the wall of fluid collection cassette 10.
  • Figure 6 illustrates yet another alternative embodiment which illustrates that first material 40 may be disposed inside fluid collection cassette 10.
  • first material 40 may be disposed inside fluid collection cassette 10.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Pulmonology (AREA)
  • External Artificial Organs (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

La présente invention concerne un procédé d'assistance à l'identification automatique d'une cassette particulière de prélèvement de liquide (10) telle une cassette de liquide chirurgical postérieur ou d'une cassette de liquide chirurgical antérieur. Une cassette de prélèvement (10) présente un matériau (40), (44) disposé sur, au sein de, ou dans ladite cassette de prélèvement en au moins un emplacement déterminé (38), (42). Lorsque la cassette de prélèvement (10) de liquide est introduite dans le boîtier (56), un capteur (58), (60) fixé au boîtier (56) détecte la présence ou non du matériau (40), (44) et émet un signal communicant cette information au contrôleur principal, permettant ainsi de déterminer le type de cassette de prélèvement.
EP98953291A 1997-10-17 1998-10-06 Systeme d'identification de cassette de prelevement de liquides Withdrawn EP0946224A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US6231197P 1997-10-17 1997-10-17
US62311P 1997-10-17
US5555898A 1998-04-06 1998-04-06
US55558 1998-04-06
PCT/US1998/021119 WO1999020323A1 (fr) 1997-10-17 1998-10-06 Systeme d'identification de cassette de prelevement de liquides

Publications (1)

Publication Number Publication Date
EP0946224A1 true EP0946224A1 (fr) 1999-10-06

Family

ID=26734350

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98953291A Withdrawn EP0946224A1 (fr) 1997-10-17 1998-10-06 Systeme d'identification de cassette de prelevement de liquides

Country Status (7)

Country Link
EP (1) EP0946224A1 (fr)
JP (1) JP2001505812A (fr)
CN (1) CN1242709A (fr)
AU (1) AU1070199A (fr)
BR (1) BR9806707A (fr)
CA (1) CA2274765A1 (fr)
WO (1) WO1999020323A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8011905B2 (en) * 2005-11-17 2011-09-06 Novartis Ag Surgical cassette
EP3156404A1 (fr) 2015-10-15 2017-04-19 Inventiva Nouveaux composés inhibiteurs de l'interaction yap/taz-tead et leur utilisation dans le traitement du mésothéliome malin

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4812674A (en) * 1985-05-20 1989-03-14 Square D Company Safety gate limit switch using Hall effect transducer
DE3910250A1 (de) * 1989-03-30 1990-10-11 Fresenius Ag Fotoelektrische ueberwachungsanordnung fuer schlauchleitungen in der medizintechnik
US5460490A (en) * 1994-05-19 1995-10-24 Linvatec Corporation Multi-purpose irrigation/aspiration pump system
ATE188132T1 (de) * 1995-07-06 2000-01-15 Disetronic Licensing Ag Einweg-kassette zum anschliessen an eine infusionspumpe für ein flüssiges arzneimittel
US6059544A (en) * 1995-12-01 2000-05-09 Alcon Laboratories, Inc. Identification system for a surgical cassette

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9920323A1 *

Also Published As

Publication number Publication date
CN1242709A (zh) 2000-01-26
WO1999020323A1 (fr) 1999-04-29
BR9806707A (pt) 2000-04-04
AU1070199A (en) 1999-05-10
JP2001505812A (ja) 2001-05-08
CA2274765A1 (fr) 1999-04-29

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