WO2008088623A2 - Trocar cannula system - Google Patents

Trocar cannula system Download PDF

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Publication number
WO2008088623A2
WO2008088623A2 PCT/US2007/086983 US2007086983W WO2008088623A2 WO 2008088623 A2 WO2008088623 A2 WO 2008088623A2 US 2007086983 W US2007086983 W US 2007086983W WO 2008088623 A2 WO2008088623 A2 WO 2008088623A2
Authority
WO
WIPO (PCT)
Prior art keywords
instrument
trocar
cannula
trocar cannula
tubing
Prior art date
Application number
PCT/US2007/086983
Other languages
French (fr)
Other versions
WO2008088623A3 (en
Inventor
Yong Li
Christopher L. Mccollam
Original Assignee
Alcon, 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 Alcon, Inc. filed Critical Alcon, Inc.
Priority to MX2009006143A priority Critical patent/MX2009006143A/en
Priority to JP2009546380A priority patent/JP2010516331A/en
Priority to BRPI0720948-7A2A priority patent/BRPI0720948A2/en
Priority to AU2007343640A priority patent/AU2007343640A1/en
Priority to KR1020097017216A priority patent/KR20090111845A/en
Priority to EP07865472A priority patent/EP2121081A2/en
Priority to CA002671013A priority patent/CA2671013A1/en
Publication of WO2008088623A2 publication Critical patent/WO2008088623A2/en
Publication of WO2008088623A3 publication Critical patent/WO2008088623A3/en

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
    • A61M25/00—Catheters; Hollow probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421—Cannulas
    • 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00345—Micromachines, nanomachines, microsystems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08—Accessories or related features not otherwise provided for
    • A61B2090/0807—Indication means
    • A61B2090/0811—Indication means for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument
    • 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

Definitions

  • the present invention generally pertains to microsurgical instruments. More particularly, but not by way of limitation, the present invention pertains to microsurgical instruments used in posterior segment ophthalmic surgery.
  • vitreoretinal surgery often requires the cutting, removal, dissection, delamination, coagulation, or other manipulation of delicate tissues such as the vitreous humor, traction bands, membranes, or the retina.
  • the vitreous humor, or vitreous is composed of numerous microscopic fibers that are often attached to the retina. Therefore, cutting, removal, or other manipulation of the vitreous must be done with great care to avoid traction on the retina, the separation of the retina from the choroid, a retinal tear, or, in the worst case, cutting and removal of the retina itself.
  • Microsurgical instruments such as vitrectomy probes, fiber optic illuminators, infusion cannulas, aspiration probes, scissors, forceps, and lasers are typically utilized during vitreoretinal surgery. These devices are generally inserted through one or more surgical incisions in the sclera near the pars plana, which are called sclerotomies. The repeated insertion and removal of these devices can allow vitreous and other fluids to escape the eye through the sclerotomies, increasing the potential for softening of the globe, bleeding, traction on the retina, or introduction of bacteria into the eye. Therefore, an infusion cannula is used to infuse an irrigating solution into the eye to maintain a suitable intraocular pressure.
  • Trocar cannulas and plugs are often used in connection with infusion cannulas.
  • the trocar cannula establishes an entry through the sclera into the posterior segment of the eye.
  • the infusion cannula is placed within the trocar cannula so as to provide irrigating solution to the eye.
  • a trocar plug is placed within the trocar cannula to prevent leakage when the infusion cannula is removed. It is important to establish a reliable connection between the trocar cannula and the infusion cannula or trocar plug to prevent an unwanted loss of intraocular pressure during surgery.
  • such connection is accomplished via an interference fit between the inner diameter of the trocar cannula and the outer diameter of the infusion cannula or trocar plug.
  • interferences may develop inelastic deformation of, and create static friction between, the trocar cannula and the infusion cannula or trocar plug. Such interferences are also difficult to control with small gage instruments and conventional manufacturing tolerances.
  • a conventional method of creating such an interference is by crimping the infusion cannula. However, such crimping often creates a flow restriction within the infusion cannula, which is particularly undesirable during the high vacuum settings of some surgeries. Therefore, a need remains for an improved trocar cannula system.
  • the present invention is a trocar cannula system that generally includes a trocar cannula and a microsurgical instrument.
  • the trocar cannula has a hub and a tubing coupled to the hub.
  • the tubing has an internal surface with a protrusion disposed thereon.
  • the microsurgical instrument is removably and partially .
  • the instrument has an external surface with a well disposed thereon for mating with the protrusion. The mating of the protrusion and the well place the instrument in three point bending to secure the instrument within the trocar cannula.
  • Figure 1 is schematic, side, sectional view of the trocar cannula system according to the present invention.
  • Figure 2 is an enlarged, side, sectional view of a portion of the infusion cannula of the trocar cannula system shown in detail 2 of Figure 1.
  • FIG. 1 shows a trocar cannula system 10 generally including a trocar cannula 12 and an infusion cannula or trocar plug 14.
  • a trocar cannula system 10 generally including a trocar cannula 12 and an infusion cannula or trocar plug 14.
  • the present invention will be described below in reference to an infusion cannula with the understanding that it is equally applicable to a trocar plug or other microsurgical instrument.
  • Trocar cannula 12 generally includes a proximal hub 16 and a tubing 18.
  • Hub 16 includes an opening 20 for receiving infusion cannula 14, an annular surface 22 for contacting an interior surface of the sclera, and an annular surface 24 for contacting an exterior surface of the sclera.
  • Tubing 18 has a hollow bore 25, an internal surface 26, an opening 28 for receiving infusion cannula 14, and an opening 30 for allowing the passage of infusion cannula 14 into the posterior segment of the eye.
  • Tubing 18 has a first portion disposed within hub 16 having a first internal diameter and a second, distal portion with a second internal diameter smaller than its first internal diameter.
  • Internal surface 26 has a convex protrusion 32, which is preferably disposed within hub 16.
  • Trocar cannula 12 is preferably formed from surgical stainless steel.
  • Infusion cannula 14 generally includes a hollow bore 34, an opening 36 for allowing irrigating fluid to enter the posterior segment of the eye, a first portion disposed within hub 16 having a first internal diameter, and a second, distal portion with a second internal diameter smaller than its first internal diameter.
  • infusion cannula 14 has a concave well or dimple 36 on its external surface for mating with protrusion 32 of trocar cannula 12.
  • Infusion cannula 14 is preferably formed from surgical stainless steel.
  • a surgeon creates a sclerotomy and inserts trocar cannula 12 therein so that the sclera is disposed between surfaces 22 and 24 of hub 16; opening 30 is disposed within the posterior segment, and preferably the vitreous chamber, of the eye; and opening 20 is disposed outside the sclera.
  • the surgeon inserts infusion cannula 14 into tubing 18 so that opening 36 is disposed within the posterior segment, and preferably the vitreous chamber, of the eye.
  • Protrusion 32 of trocar cannula 12 mates with well 36 of infusion cannula 14.
  • protrusion 32 and well 36 places infusion cannula 14 in elastic, three point bending, safely securing infusion cannula 14 within trocar cannula 12 with a reasonable retention force.
  • the mating of protrusion 32 and well 36 creates no flow restricting features within bore 34 of infusion cannula 14.
  • the mating of protrusion 32 and well 36 can be disengaged with a reasonable amount of force to allow for the removal of infusion cannula 14.
  • a trocar plug 14, or other microsurgical instrument, may then be inserted into the sclerotomy.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Surgery (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Vascular Medicine (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Surgical Instruments (AREA)
  • Endoscopes (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

A trocar cannula system incorporating a three-point bend locking mechanism to provide improved retention of the microsurgical instrument within the trocar cannula, which may include an infusion cannula or plug.

Description

TROCAR CANNULA SYSTEM
Field of the Invention
The present invention generally pertains to microsurgical instruments. More particularly, but not by way of limitation, the present invention pertains to microsurgical instruments used in posterior segment ophthalmic surgery.
Description of the Related Art
Many microsurgical procedures require precision cutting and/or removal of various body tissues. For example, vitreoretinal surgery often requires the cutting, removal, dissection, delamination, coagulation, or other manipulation of delicate tissues such as the vitreous humor, traction bands, membranes, or the retina. The vitreous humor, or vitreous, is composed of numerous microscopic fibers that are often attached to the retina. Therefore, cutting, removal, or other manipulation of the vitreous must be done with great care to avoid traction on the retina, the separation of the retina from the choroid, a retinal tear, or, in the worst case, cutting and removal of the retina itself.
Microsurgical instruments, such as vitrectomy probes, fiber optic illuminators, infusion cannulas, aspiration probes, scissors, forceps, and lasers are typically utilized during vitreoretinal surgery. These devices are generally inserted through one or more surgical incisions in the sclera near the pars plana, which are called sclerotomies. The repeated insertion and removal of these devices can allow vitreous and other fluids to escape the eye through the sclerotomies, increasing the potential for softening of the globe, bleeding, traction on the retina, or introduction of bacteria into the eye. Therefore, an infusion cannula is used to infuse an irrigating solution into the eye to maintain a suitable intraocular pressure.
Trocar cannulas and plugs are often used in connection with infusion cannulas. The trocar cannula establishes an entry through the sclera into the posterior segment of the eye. The infusion cannula is placed within the trocar cannula so as to provide irrigating solution to the eye. A trocar plug is placed within the trocar cannula to prevent leakage when the infusion cannula is removed. It is important to establish a reliable connection between the trocar cannula and the infusion cannula or trocar plug to prevent an unwanted loss of intraocular pressure during surgery. Typically, such connection is accomplished via an interference fit between the inner diameter of the trocar cannula and the outer diameter of the infusion cannula or trocar plug. However, interferences may develop inelastic deformation of, and create static friction between, the trocar cannula and the infusion cannula or trocar plug. Such interferences are also difficult to control with small gage instruments and conventional manufacturing tolerances. In addition, a conventional method of creating such an interference is by crimping the infusion cannula. However, such crimping often creates a flow restriction within the infusion cannula, which is particularly undesirable during the high vacuum settings of some surgeries. Therefore, a need remains for an improved trocar cannula system.
Summary of the Invention
In one aspect, the present invention is a trocar cannula system that generally includes a trocar cannula and a microsurgical instrument. The trocar cannula has a hub and a tubing coupled to the hub. The tubing has an internal surface with a protrusion disposed thereon. The microsurgical instrument is removably and partially .
disposed within the tubing. The instrument has an external surface with a well disposed thereon for mating with the protrusion. The mating of the protrusion and the well place the instrument in three point bending to secure the instrument within the trocar cannula.
Brief Description of the Drawings
For a more complete understanding of the present invention, and for further objects and advantages thereof, reference is made to the following description taken in conjunction with the accompanying drawings, in which: Figure 1 is schematic, side, sectional view of the trocar cannula system according to the present invention; and
Figure 2 is an enlarged, side, sectional view of a portion of the infusion cannula of the trocar cannula system shown in detail 2 of Figure 1.
Detailed Description of the Preferred Embodiments
The preferred embodiments of the present invention and their advantages are best understood by referring to Figures 1-2 of the drawings, like numerals being used for like and corresponding parts of the various drawings.
Figure 1 shows a trocar cannula system 10 generally including a trocar cannula 12 and an infusion cannula or trocar plug 14. For ease of description, the present invention will be described below in reference to an infusion cannula with the understanding that it is equally applicable to a trocar plug or other microsurgical instrument.
Trocar cannula 12 generally includes a proximal hub 16 and a tubing 18. Hub 16 includes an opening 20 for receiving infusion cannula 14, an annular surface 22 for contacting an interior surface of the sclera, and an annular surface 24 for contacting an exterior surface of the sclera. Tubing 18 has a hollow bore 25, an internal surface 26, an opening 28 for receiving infusion cannula 14, and an opening 30 for allowing the passage of infusion cannula 14 into the posterior segment of the eye. Tubing 18 has a first portion disposed within hub 16 having a first internal diameter and a second, distal portion with a second internal diameter smaller than its first internal diameter. Internal surface 26 has a convex protrusion 32, which is preferably disposed within hub 16. Trocar cannula 12 is preferably formed from surgical stainless steel.
Infusion cannula 14 generally includes a hollow bore 34, an opening 36 for allowing irrigating fluid to enter the posterior segment of the eye, a first portion disposed within hub 16 having a first internal diameter, and a second, distal portion with a second internal diameter smaller than its first internal diameter. As shown best in Figure 2, infusion cannula 14 has a concave well or dimple 36 on its external surface for mating with protrusion 32 of trocar cannula 12. Infusion cannula 14 is preferably formed from surgical stainless steel.
In use, a surgeon creates a sclerotomy and inserts trocar cannula 12 therein so that the sclera is disposed between surfaces 22 and 24 of hub 16; opening 30 is disposed within the posterior segment, and preferably the vitreous chamber, of the eye; and opening 20 is disposed outside the sclera. The surgeon inserts infusion cannula 14 into tubing 18 so that opening 36 is disposed within the posterior segment, and preferably the vitreous chamber, of the eye. Protrusion 32 of trocar cannula 12 mates with well 36 of infusion cannula 14. The mating of protrusion 32 and well 36 places infusion cannula 14 in elastic, three point bending, safely securing infusion cannula 14 within trocar cannula 12 with a reasonable retention force. The mating of protrusion 32 and well 36 creates no flow restricting features within bore 34 of infusion cannula 14. The mating of protrusion 32 and well 36 can be disengaged with a reasonable amount of force to allow for the removal of infusion cannula 14. A trocar plug 14, or other microsurgical instrument, may then be inserted into the sclerotomy.
It is believed that the operation and construction of the present invention will be apparent from the foregoing description. While the apparatus and methods shown or described above have been characterized as being preferred, various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the following claims.

Claims

.What is claimed is:
1. A trocar cannula system, comprising: a trocar cannula having a hub and a tubing coupled to said hub, said tubing having an internal surface with a protrusion disposed thereon; a microsurgical instrument removably and partially disposed within said tubing, said instrument having an external surface with a well disposed thereon for mating with said protrusion; wherein said mating of said protrusion and said well place said instrument in three point bending to secure said instrument within said trocar cannula.
2. The trocar cannula system of claim 1 wherein said protrusion has a convex geometry.
3. The trocar cannula system of claim 2 wherein said well has a concave geometry.
4. The trocar cannula system of claim 1 wherein said microsurgical instrument is an infusion cannula.
5. The trocar cannula system of claim 1 wherein said microsurgical instrument is a trocar plug.
6. A method of securing a microsurgical instrument within a trocar cannula, comprising the steps of: inserting a trocar cannula into the sclera of an eye; inserting a microsurgical instrument within said tubing so that a distal end of said instrument is disposed within an eye, wherein an internal geometry of said tubing and an external geometry of said instrument place said instrument in three point bending to secure said instrument within said trocar cannula.
7. The method of claim 6 wherein said microsurgical instrument is an infusion cannula.
8. The method of claim 7 wherein said microsurgical instrument is a trocar plug.
PCT/US2007/086983 2007-01-18 2007-12-10 Trocar cannula system WO2008088623A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
MX2009006143A MX2009006143A (en) 2007-01-18 2007-12-10 Trocar cannula system.
JP2009546380A JP2010516331A (en) 2007-01-18 2007-12-10 Trocar cannula system
BRPI0720948-7A2A BRPI0720948A2 (en) 2007-01-18 2007-12-10 TROCARTS CANNULA SYSTEM, E, METHOD FOR HOLDING A MICROSURGENIC INSTRUMENT INSIDE A TROCARTS CANNULA.
AU2007343640A AU2007343640A1 (en) 2007-01-18 2007-12-10 Trocar cannula system
KR1020097017216A KR20090111845A (en) 2007-01-18 2007-12-10 Trocar cannula system
EP07865472A EP2121081A2 (en) 2007-01-18 2007-12-10 Trocar cannula system
CA002671013A CA2671013A1 (en) 2007-01-18 2007-12-10 Trocar cannula system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/624,485 2007-01-18
US11/624,485 US20080177239A1 (en) 2007-01-18 2007-01-18 Trocar cannula system

Publications (2)

Publication Number Publication Date
WO2008088623A2 true WO2008088623A2 (en) 2008-07-24
WO2008088623A3 WO2008088623A3 (en) 2009-01-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/086983 WO2008088623A2 (en) 2007-01-18 2007-12-10 Trocar cannula system

Country Status (13)

Country Link
US (1) US20080177239A1 (en)
EP (1) EP2121081A2 (en)
JP (1) JP2010516331A (en)
KR (1) KR20090111845A (en)
CN (1) CN101616703A (en)
AR (1) AR064909A1 (en)
AU (1) AU2007343640A1 (en)
BR (1) BRPI0720948A2 (en)
CA (1) CA2671013A1 (en)
MX (1) MX2009006143A (en)
RU (1) RU2009131315A (en)
TW (1) TW200835471A (en)
WO (1) WO2008088623A2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012517323A (en) * 2009-02-10 2012-08-02 シヴィダ・ユーエス・インコーポレイテッド Ophthalmic trocar assembly
US8377001B2 (en) 2010-10-01 2013-02-19 Abbott Laboratories Feeding set for a peristaltic pump system
US8377000B2 (en) 2010-10-01 2013-02-19 Abbott Laboratories Enteral feeding apparatus having a feeding set
US8689439B2 (en) 2010-08-06 2014-04-08 Abbott Laboratories Method for forming a tube for use with a pump delivery system
USD851755S1 (en) 2015-10-22 2019-06-18 Eyepoint Pharmaceuticals Us, Inc. Ocular inserter
DE102017223006A1 (en) * 2017-12-18 2019-06-19 Geuder Ag Device for introducing a medium into the human or animal eye
US10363163B2 (en) 2014-09-11 2019-07-30 EyePoint Pharmaceuticals, Inc. Injector apparatus

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070202186A1 (en) 2006-02-22 2007-08-30 Iscience Interventional Corporation Apparatus and formulations for suprachoroidal drug delivery
US8932249B2 (en) 2009-10-08 2015-01-13 Ethicon Endo-Surgery, Inc. Trocar assembly
US8491533B2 (en) * 2009-10-08 2013-07-23 Ethicon Endo-Surgery, Inc. Trocar assembly
US20110087159A1 (en) * 2009-10-08 2011-04-14 Parihar Shailendra K Trocar Assembly
US8062260B2 (en) * 2009-12-22 2011-11-22 Alcon Research, Ltd. Trocar cannula device with retention feature
US8343106B2 (en) 2009-12-23 2013-01-01 Alcon Research, Ltd. Ophthalmic valved trocar vent
PL2515774T3 (en) 2009-12-23 2014-08-29 Alcon Res Ltd Ophthalmic valved trocar cannula
JP5996544B2 (en) 2010-10-15 2016-09-21 クリアサイド・バイオメディカル・インコーポレーテッドＣｌｅａｒｓｉｄｅ Ｂｉｏｍｅｄｉｃａｌ Ｉｎｃｏｒｐｏｒａｔｅｄ Eye access device
FR2970412B1 (en) * 2011-01-18 2013-12-20 France Chirurgie Instr SELF-LOCKING CANNULA
CN104884049A (en) 2012-11-08 2015-09-02 克莱尔塞德生物医学股份有限公司 Methods and devices for the treatment of ocular diseases in human subjects
MX2015015282A (en) 2013-05-03 2016-02-26 Clearside Biomedical Inc Apparatus and methods for ocular injection.
US10188550B2 (en) 2013-06-03 2019-01-29 Clearside Biomedical, Inc. Apparatus and methods for drug delivery using multiple reservoirs
MX2016017028A (en) 2014-06-20 2017-08-07 Clearside Biomedical Inc Variable diameter cannula and methods for controlling insertion depth for medicament delivery.
US10390901B2 (en) 2016-02-10 2019-08-27 Clearside Biomedical, Inc. Ocular injection kit, packaging, and methods of use
EP3452165A1 (en) 2016-05-02 2019-03-13 Clearside Biomedical, Inc. Systems and methods for ocular drug delivery
CN110177527B (en) 2016-08-12 2022-02-01 科尼尔赛德生物医学公司 Device and method for adjusting insertion depth of needle for medicament delivery
JP6930874B2 (en) * 2017-07-31 2021-09-01 マニー株式会社 Cannula holder
JP6902966B2 (en) * 2017-08-30 2021-07-14 マニー株式会社 Back flush needle
JP7128614B2 (en) * 2017-08-30 2022-08-31 マニー株式会社 infusion pipe
US11696851B2 (en) 2019-04-25 2023-07-11 Alcon Inc. Cannula system with retention feature
US11564711B2 (en) 2019-04-25 2023-01-31 Alcon Inc. Adjustable length infusion cannula
EP4373416A1 (en) 2021-07-20 2024-05-29 Alcon Inc. Infusion cannula
WO2023002265A1 (en) * 2021-07-20 2023-01-26 Alcon Inc. Cannulas for ophthalmic procedures

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060089526A1 (en) * 2004-10-21 2006-04-27 Medical Instrument Development Laboratories, Inc. Self-sealing closure for an ophthalmic cannula
US20060217655A1 (en) * 2000-03-13 2006-09-28 Vitullo Jeffrey M Pre-loaded lockable stimulating catheter for delivery of anaesthetic drugs

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3612050A (en) * 1969-04-01 1971-10-12 David S Sheridan Intravascular catheters
US5232450A (en) * 1990-02-13 1993-08-03 United States Surgical Corporation Safety device for trocars and surgical instruments thereof
US5104381A (en) * 1991-08-30 1992-04-14 Origin Medsystems, Inc. Pneumoneedle with removable stylet assembly
US5387196A (en) * 1992-05-19 1995-02-07 United States Surgical Corporation Cannula assembly having conductive cannula
AT824U1 (en) * 1995-08-23 1996-06-25 Golser Karl Dr WORKING CANNULAS FOR ARTHROSCOPY
US5957888A (en) * 1995-10-10 1999-09-28 United States Surgical Corporation Surgical cannula having a variable length
US6551291B1 (en) * 1999-08-04 2003-04-22 Johns Hopkins University Non-traumatic infusion cannula and treatment methods using same
US7077848B1 (en) * 2000-03-11 2006-07-18 John Hopkins University Sutureless occular surgical methods and instruments for use in such methods
US6989003B2 (en) * 2001-08-31 2006-01-24 Conmed Corporation Obturator and cannula for a trocar adapted for ease of insertion and removal
JP4137622B2 (en) * 2002-12-16 2008-08-20 オリンパス株式会社 Ultrasonic trocar system
US8012128B2 (en) * 2003-09-30 2011-09-06 Ethicon Endo-Surgery Inc. Button latching system for a trocar

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060217655A1 (en) * 2000-03-13 2006-09-28 Vitullo Jeffrey M Pre-loaded lockable stimulating catheter for delivery of anaesthetic drugs
US20060089526A1 (en) * 2004-10-21 2006-04-27 Medical Instrument Development Laboratories, Inc. Self-sealing closure for an ophthalmic cannula

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012517323A (en) * 2009-02-10 2012-08-02 シヴィダ・ユーエス・インコーポレイテッド Ophthalmic trocar assembly
JP2015144863A (en) * 2009-02-10 2015-08-13 シヴィダ・ユーエス・インコーポレイテッドPsivida Us, Inc. Ocular trocar assembly
US8689439B2 (en) 2010-08-06 2014-04-08 Abbott Laboratories Method for forming a tube for use with a pump delivery system
US8377001B2 (en) 2010-10-01 2013-02-19 Abbott Laboratories Feeding set for a peristaltic pump system
US8377000B2 (en) 2010-10-01 2013-02-19 Abbott Laboratories Enteral feeding apparatus having a feeding set
US10363163B2 (en) 2014-09-11 2019-07-30 EyePoint Pharmaceuticals, Inc. Injector apparatus
USD851755S1 (en) 2015-10-22 2019-06-18 Eyepoint Pharmaceuticals Us, Inc. Ocular inserter
DE102017223006A1 (en) * 2017-12-18 2019-06-19 Geuder Ag Device for introducing a medium into the human or animal eye

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AR064909A1 (en) 2009-05-06
AU2007343640A1 (en) 2008-07-24
TW200835471A (en) 2008-09-01
MX2009006143A (en) 2009-06-30
JP2010516331A (en) 2010-05-20
US20080177239A1 (en) 2008-07-24
CN101616703A (en) 2009-12-30
KR20090111845A (en) 2009-10-27
RU2009131315A (en) 2011-02-27
BRPI0720948A2 (en) 2014-03-18
WO2008088623A3 (en) 2009-01-15
CA2671013A1 (en) 2008-07-24
EP2121081A2 (en) 2009-11-25

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