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US20040199192A1 - Phacoemulsification needle - Google Patents

Phacoemulsification needle Download PDF

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Publication number
US20040199192A1
US20040199192A1 US10/406,572 US40657203A US2004199192A1 US 20040199192 A1 US20040199192 A1 US 20040199192A1 US 40657203 A US40657203 A US 40657203A US 2004199192 A1 US2004199192 A1 US 2004199192A1
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US
United States
Prior art keywords
tip
needle
shaft
distal end
needle according
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.)
Abandoned
Application number
US10/406,572
Inventor
Takayuki Akahoshi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US10/406,572 priority Critical patent/US20040199192A1/en
Priority to US10/806,470 priority patent/US7204820B2/en
Priority to EP04405200A priority patent/EP1464311B1/en
Priority to DE602004028734T priority patent/DE602004028734D1/en
Priority to AT04405200T priority patent/ATE316366T1/en
Priority to DE602004000355T priority patent/DE602004000355T2/en
Priority to DK04405200T priority patent/DK1464311T3/en
Priority to AT05023924T priority patent/ATE477775T1/en
Priority to ES05023924T priority patent/ES2350768T3/en
Priority to EP05023924A priority patent/EP1632204B1/en
Priority to JP2004110433A priority patent/JP2004358227A/en
Priority to ES04405200T priority patent/ES2257731T3/en
Assigned to AKAHOSHI, TAKAYUKI, NALLAKRISHNAN, RAVI reassignment AKAHOSHI, TAKAYUKI ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AKAHOSHI, TAKAYUKI
Publication of US20040199192A1 publication Critical patent/US20040199192A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • A61F9/00745—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments using mechanical vibrations, e.g. ultrasonic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320072—Working tips with special features, e.g. extending parts
    • A61B2017/320073—Working tips with special features, e.g. extending parts probe
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320072—Working tips with special features, e.g. extending parts
    • A61B2017/32008—Working tips with special features, e.g. extending parts preventing clogging of suction channel

Definitions

  • This invention relates to a phacoemulsification needle for an ultrasonic surgical instrument, the needle being designed for promoting cavitation in eye tissue and for the removal of fragmented lens from the eye.
  • Phacoemulsification has become the preferred form of cataract, i.e. a cloudy eye lens, removal.
  • cataract i.e. a cloudy eye lens
  • One of the main advantages of phacoemulsification is, that only a small incision into the cornea or sclera of an eye is needed to remove the cataract. Furthermore, the removal of the cataract can be done very quickly. After the cataract is removed, an intraocular lens is inserted to replace the original lens.
  • the phacoemulsification technique uses a hand held microsurgical tool known as phacoemulsifier.
  • This phacoemulsifier comprises a handpiece and a small diameter needle with a tip to be inserted into the small incision of the eye.
  • the needle and therefore the tip are vibrated by an ultrasonic source. It breaks the cataract into small fragments and pieces, which are sucked out through the same tip in a controlled manner.
  • the tip is therefore designed for emulsifying, fragmenting and/or cutting tissue and also comprises a central hollow bore or lumen for the suction or aspiration of the fragments.
  • an irrigation solution is introduced to maintain the pressure and to prevent the eye from collapsing.
  • the needle is usually covered by a sleeve and the solution flows via the space between this sleeve and the needle.
  • the solution is therefore also used to cool the tip, which is heating up during the phacoemulsification.
  • U.S. Pat. No. 5,653,724 discloses a phacoemulsification needle which is angled to provide more comfortable ergonomic angle during phacoelmulsification and lens cortex removal. This angled needle is also considered to produce less heat when emulsifying the lens.
  • Another angled phacoemulsification needle with a concentric sleeve is disclosed in U.S. Pat. No. 5,993,409.
  • a laser/aspiration probe is used for breaking and removing the lens.
  • a separate infusion or irrigation probe. is used for the irrigation solution.
  • a tip disposed at a distal end of said shaft, said tip having a larger outer diameter than said shaft and
  • an aspiration lumen extending through said shaft and said tip, the tip having an opening communicating with said aspiration lumen
  • said tip has a ball-shaped surface and wherein the tip has a flat distal end comprising said opening.
  • the needle according to the invention can be used with or without an irrigation sleeve.
  • the tip has at its distal end rounded edges. This avoids unwished damage of tissue.
  • the tip comprises a slit extending in longitudinal direction of the needle.
  • the anterior chamber formed of a part of the lumen extending in the tip, becomes unstable when occlusion break occurs. In this case, small amount of irrigation fluid will continue to flow through the aspiration lumen. Furthermore, when occlusion surge occurs, the amount of surge can be reduced.
  • FIG. 1 shows a perspective view of a needle according to the invention in a first embodiment
  • FIG. 2 shows a side view of the needle according to FIG. 1;
  • FIG. 3 shows another side view of the needle according to figure 1;
  • FIG. 4 shows a magnified part of the needle tip according to FIG. 3;
  • FIG. 5 shows a front view of the needle according to FIG. 1 and
  • FIG. 6 shows a front view of a needle according to a second embodiment.
  • the needle may be formed from any conventional material as is known in the art for the manufacture of phacoemulsification needles. Usually, it is made of titan.
  • the needle comprises, starting with its proximal end and ending with its distal end, a threaded portion 1 , a hub 2 , a shaft 3 and a tip 6 having an opening.
  • the threaded portion 1 and the hub 2 are used to fix the needle on a ultrasonic device of the phacoemulsification handpiece (not shown) in order to couple ultrasonic energy to the needle.
  • the needle further comprises, with reference to FIGS. 3 and 4, an aspiration lumen 4 extending through the whole longitudinal length of the needle shaft 3 and communicating with the opening of the tip for aspiration of irrigation fluid and therefore for removal of fragments and pieces of the cataract nucleus and residual cortex.
  • the lumen 4 comprises a first step 40 in the region of the hub 2 neighboring the shaft 3 .
  • the first diameter d1 of the part of the lumen extending within the hub 2 is therefore larger than the second diameter d2 of the lumen part extending within the shaft 2 .
  • This first step 40 has preferably a conical shape.
  • a second step 41 which has preferably also a conical shape, is located within the tip 6 , wherein the second diameter d2 is smaller than a third diameter d3 of the lumen part extending within the shaft 2 .
  • This diameter d3 corresponds with the diameter of the opening of the tip 6 .
  • the lumen 4 preferably has throughout its whole length the same size.
  • the lumen part extending in the tip 6 has a cylindrical shape.
  • the shaft 3 is preferably angled. However, it is also possible to have a rectilinear shaft. In the here described embodiment however, the shaft 3 comprises an angled portion 5 neighboring the tip 6 . The aspiration lumen 4 within the tip extends in a rectilinear way.
  • the above mentioned second step 41 is preferably located in the tip 6 itself at a distance to the transition of the ball-shaped surface 60 to the surface of the shaft 3 .
  • a curved line 1 is shown at the distal end of the tip 6 . This line 1 is just an auxiliary line showing that, with exception of the flat distal end, the tip has a completely spherical surface.
  • a preferred embodiment of the inventive needle has an outer diameter D2 for the shaft 2 of approximately 1.06 mm, an outer diameter D1 of the tip 6 of approximately 1.6 mm, a first diameter d1 of the lumen 4 of approximately 1.32 mm, a second diameter d2 of approximately 0.72 mm, a third diameter d3 of approximately 0.8 mm, a length L of the tip 5 (extending up to the curved line l) of approximately 1.46 mm and a distance X from the curved line l to the second step 41 of approximately 1.05 mm.
  • the radius of curvature of the rounded edges 61 is approximately 0.15 mm, the angle of the first step 40 approximately 34° and the angle of the second step 41 approximately 30°.
  • the angle ⁇ between shaft 3 and tip 4 lays between 10 and 15°. Here it is approximately 15°.
  • the total length of the needle up to the curved line 1 is approximately 30.15 mm.
  • FIG. 6 shows a second preferred embodiment of the needle according to the invention.
  • the needle is built in the same way as the needle according to the previously described figures. The only difference is, that this tip 6 comprises a slit. 7 extending in longitudinal direction of the needle, which communicates with the aspiration lumen 4 .
  • the needle according to the invention can be used for the ultrasonic part of the phacoemulsification procedure, i.e. for the removal of the cataract nucleus, as well as for the irrigation/aspiration part of the procedure, i.e. for the removal of the residual tissue.

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  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Surgical Instruments (AREA)

Abstract

The phacoemulsification needle according to the invention comprises a shaft, a tip disposed at a distal end of said shaft, the tip having a larger outer diameter than said shaft and an aspiration lumen extending through said shaft and said tip. The tip has an opening communicating with said aspiration lumen, a ball-shaped surface and a flat distal end comprising said opening. This needle can be used for removal of the cataract nucleus as well as for removal of the residual tissue.

Description

    FIELD OF THE INVENTION
  • This invention relates to a phacoemulsification needle for an ultrasonic surgical instrument, the needle being designed for promoting cavitation in eye tissue and for the removal of fragmented lens from the eye. [0001]
    • BACKGROUND OF THE INVENTION
  • Phacoemulsification has become the preferred form of cataract, i.e. a cloudy eye lens, removal. One of the main advantages of phacoemulsification is, that only a small incision into the cornea or sclera of an eye is needed to remove the cataract. Furthermore, the removal of the cataract can be done very quickly. After the cataract is removed, an intraocular lens is inserted to replace the original lens. [0002]
  • The phacoemulsification technique uses a hand held microsurgical tool known as phacoemulsifier. This phacoemulsifier comprises a handpiece and a small diameter needle with a tip to be inserted into the small incision of the eye. The needle and therefore the tip are vibrated by an ultrasonic source. It breaks the cataract into small fragments and pieces, which are sucked out through the same tip in a controlled manner. The tip is therefore designed for emulsifying, fragmenting and/or cutting tissue and also comprises a central hollow bore or lumen for the suction or aspiration of the fragments. [0003]
  • During the procedure, an irrigation solution is introduced to maintain the pressure and to prevent the eye from collapsing. In order to introduce the irrigation solution, the needle is usually covered by a sleeve and the solution flows via the space between this sleeve and the needle. The solution is therefore also used to cool the tip, which is heating up during the phacoemulsification. [0004]
  • Usually, the needle and often the handpiece must be changed after the removal of the cataract nucleus in order to remove the residual cortex. It takes time to change the handpiece and the continuation of the surgery is disrupted. [0005]
  • U.S. Pat. No. 5,653,724 discloses a phacoemulsification needle which is angled to provide more comfortable ergonomic angle during phacoelmulsification and lens cortex removal. This angled needle is also considered to produce less heat when emulsifying the lens. Another angled phacoemulsification needle with a concentric sleeve is disclosed in U.S. Pat. No. 5,993,409. [0006]
  • Different shapes of phacoemulsification needles with slits, a second infusion hole and/or with increased outside diameter at the distal end of the needle body and the needles being surrounded by 4 sleeves are described in U.S. Pat. No. 5,989,209, U.S. Pat. No. 6,591,175, EP-A-1,103,238, WO 00/74615 and U.S. 2002/0099325. [0007]
  • Other techniques for cataract removal use laser energy to remove the cataract. A laser/aspiration probe is used for breaking and removing the lens. A separate infusion or irrigation probe. is used for the irrigation solution. [0008]
    • SUMMARY OF THE INVENTION
  • It is an object of the invention to provide a phacoemulsification needle which can be used for the removal of the cataract nucleus as well as the residual cortex. [0009]
  • This object is achieved with a phacoemulsification needle comprising [0010]
  • a shaft, [0011]
  • a tip, disposed at a distal end of said shaft, said tip having a larger outer diameter than said shaft and [0012]
  • an aspiration lumen extending through said shaft and said tip, the tip having an opening communicating with said aspiration lumen, [0013]
  • wherein said tip has a ball-shaped surface and wherein the tip has a flat distal end comprising said opening. [0014]
  • With this ball-shaped tip design and the opening arranged at the flat distal end, it is possible to remove both the cataract nucleus and the residual cortex. [0015]
  • The needle according to the invention can be used with or without an irrigation sleeve. [0016]
  • In a preferred embodiment, the tip has at its distal end rounded edges. This avoids unwished damage of tissue. [0017]
  • In a preferred embodiment, the tip comprises a slit extending in longitudinal direction of the needle. When a high vacuum setting is used with the phacoemulsifier, the anterior chamber, formed of a part of the lumen extending in the tip, becomes unstable when occlusion break occurs. In this case, small amount of irrigation fluid will continue to flow through the aspiration lumen. Furthermore, when occlusion surge occurs, the amount of surge can be reduced. [0018]
  • Further preferred embodiments of the invention are described in the dependent claims.[0019]
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The present invention will be more clearly understood with reference to the following detailed description of preferred embodiments, taken in conjunction with the accompanying drawings, in which [0020]
  • FIG. 1 shows a perspective view of a needle according to the invention in a first embodiment; [0021]
  • FIG. 2 shows a side view of the needle according to FIG. 1; [0022]
  • FIG. 3 shows another side view of the needle according to figure 1; [0023]
  • FIG. 4 shows a magnified part of the needle tip according to FIG. 3; [0024]
  • FIG. 5 shows a front view of the needle according to FIG. 1 and [0025]
  • FIG. 6 shows a front view of a needle according to a second embodiment. [0026]
    • DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • With reference to FIGS. 1 and 2, there is shown a phacoemulsification needle in accordance with the present invention. The needle may be formed from any conventional material as is known in the art for the manufacture of phacoemulsification needles. Usually, it is made of titan. [0027]
  • The needle comprises, starting with its proximal end and ending with its distal end, a threaded portion [0028] 1, a hub 2, a shaft 3 and a tip 6 having an opening. The threaded portion 1 and the hub 2 are used to fix the needle on a ultrasonic device of the phacoemulsification handpiece (not shown) in order to couple ultrasonic energy to the needle.
  • The needle further comprises, with reference to FIGS. 3 and 4, an [0029] aspiration lumen 4 extending through the whole longitudinal length of the needle shaft 3 and communicating with the opening of the tip for aspiration of irrigation fluid and therefore for removal of fragments and pieces of the cataract nucleus and residual cortex. Preferably, the lumen 4 comprises a first step 40 in the region of the hub 2 neighboring the shaft 3. The first diameter d1 of the part of the lumen extending within the hub 2 is therefore larger than the second diameter d2 of the lumen part extending within the shaft 2. This first step 40 has preferably a conical shape.
  • A [0030] second step 41, which has preferably also a conical shape, is located within the tip 6, wherein the second diameter d2 is smaller than a third diameter d3 of the lumen part extending within the shaft 2. This diameter d3 corresponds with the diameter of the opening of the tip 6.
  • With exception of the [0031] steps 40, 41, the lumen 4 preferably has throughout its whole length the same size. In particular the lumen part extending in the tip 6 has a cylindrical shape.
  • The [0032] shaft 3 is preferably angled. However, it is also possible to have a rectilinear shaft. In the here described embodiment however, the shaft 3 comprises an angled portion 5 neighboring the tip 6. The aspiration lumen 4 within the tip extends in a rectilinear way.
  • The [0033] tip 6 as shown in FIG. 5 as well and which is arranged at the distal end of the shaft 3, has a larger outer diameter D2 than the outer diameter D1 of the shaft 3. Furthermore, it has a ball-shaped surface 60 and a flat distal end 62. In this preferred embodiment, the flat distal end 62 is formed by the opening. However, the opening can also be smaller, so that the end face of the tip 6 is flat. In the here described embodiment however, the end face is formed by rounded blunt edges 61. The above mentioned second step 41 is preferably located in the tip 6 itself at a distance to the transition of the ball-shaped surface 60 to the surface of the shaft 3. In FIG. 4, a curved line 1 is shown at the distal end of the tip 6. This line 1 is just an auxiliary line showing that, with exception of the flat distal end, the tip has a completely spherical surface.
  • A preferred embodiment of the inventive needle has an outer diameter D2 for the [0034] shaft 2 of approximately 1.06 mm, an outer diameter D1 of the tip 6 of approximately 1.6 mm, a first diameter d1 of the lumen 4 of approximately 1.32 mm, a second diameter d2 of approximately 0.72 mm, a third diameter d3 of approximately 0.8 mm, a length L of the tip 5 (extending up to the curved line l) of approximately 1.46 mm and a distance X from the curved line l to the second step 41 of approximately 1.05 mm. The radius of curvature of the rounded edges 61 is approximately 0.15 mm, the angle of the first step 40 approximately 34° and the angle of the second step 41 approximately 30°. The angle γ between shaft 3 and tip 4 lays between 10 and 15°. Here it is approximately 15°. The total length of the needle up to the curved line 1 is approximately 30.15 mm.
  • FIG. 6 shows a second preferred embodiment of the needle according to the invention. The needle is built in the same way as the needle according to the previously described figures. The only difference is, that this [0035] tip 6 comprises a slit. 7 extending in longitudinal direction of the needle, which communicates with the aspiration lumen 4.
  • The needle according to the invention can be used for the ultrasonic part of the phacoemulsification procedure, i.e. for the removal of the cataract nucleus, as well as for the irrigation/aspiration part of the procedure, i.e. for the removal of the residual tissue. [0036]
    • List of Reference Numbers
  • [0037] 1 threaded portion
  • [0038] 2 hub
  • [0039] 3 shaft
  • [0040] 4 lumen
  • [0041] 40 first step
  • [0042] 41 second step
  • [0043] 5 angled portion
  • [0044] 6 tip
  • [0045] 60 ball-shaped surface
  • [0046] 61 rounded edges
  • [0047] 62 flat distal end
  • [0048] 7 slit
  • d1 first diameter [0049]
  • d2 second diameter [0050]
  • d3 third diameter [0051]
  • D2 outside diameter of the shaft [0052]
  • D1 outside diameter of the tip [0053]
  • L length of the tip [0054]
  • l curved line [0055]
  • X distance [0056]
  • γ angle [0057]

Claims (10)

1. A phacoemulsification needle comprising
a shaft,
a tip, disposed at a distal end of said shaft, said tip having a larger outside diameter than said shaft and
an aspiration lumen extending through said shaft and said tip, the tip having an opening communicating with said aspiration lumen,
wherein said tip has a ball-shaped surface and. wherein the tip has a flat distal end comprising said opening.
2. The needle according to claim 1, wherein said tip has at its distal end rounded edges.
3. The needle according to claim 1, wherein said flat distal end is formed by said opening.
4. The needle according to claim 1, wherein the part of said aspiration lumen extending within the tip is rectilinear.
5. The needle according to claim 1, wherein the needle is angled.
6. The needle according to claim 1, wherein said opening has a larger diameter than the part of the aspiration lumen extending within said shaft.
7. The needle according to claim 1, wherein said aspiration lumen comprises a conical step within the tip.
8. The needle according to claim 1, wherein said opening has a diameter of approximately 0.8 mm.
9. The needle according to claim 2, wherein said edges have a radius of curvature of approximately 0.15 mm.
10. The needle according to claim 1, wherein said tip comprises a slit extending in longitudinal direction of the needle and communicating with said aspiration lumen.
US10/406,572 2003-04-04 2003-04-04 Phacoemulsification needle Abandoned US20040199192A1 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
US10/406,572 US20040199192A1 (en) 2003-04-04 2003-04-04 Phacoemulsification needle
US10/806,470 US7204820B2 (en) 2003-04-04 2004-03-23 Phacoemulsification needle
AT05023924T ATE477775T1 (en) 2003-04-04 2004-04-02 PHACOEMULSIFICATION NEEDLE
DE602004028734T DE602004028734D1 (en) 2003-04-04 2004-04-02 phacoemulsification needle
AT04405200T ATE316366T1 (en) 2003-04-04 2004-04-02 PHACOEMULSIFICATION NEEDLE
DE602004000355T DE602004000355T2 (en) 2003-04-04 2004-04-02 phacoemulsification needle
DK04405200T DK1464311T3 (en) 2003-04-04 2004-04-02 Phacoemulsification cannula
EP04405200A EP1464311B1 (en) 2003-04-04 2004-04-02 Phacoemulsification needle
ES05023924T ES2350768T3 (en) 2003-04-04 2004-04-02 PHACOEMULSIFICATION NEEDLE.
EP05023924A EP1632204B1 (en) 2003-04-04 2004-04-02 Phacoemulsification needle
JP2004110433A JP2004358227A (en) 2003-04-04 2004-04-02 Phakoemulsifying needle
ES04405200T ES2257731T3 (en) 2003-04-04 2004-04-02 PHACOEMULSION NEEDLE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/406,572 US20040199192A1 (en) 2003-04-04 2003-04-04 Phacoemulsification needle

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/806,470 Continuation-In-Part US7204820B2 (en) 2003-04-04 2004-03-23 Phacoemulsification needle

Publications (1)

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US20040199192A1 true US20040199192A1 (en) 2004-10-07

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US10/406,572 Abandoned US20040199192A1 (en) 2003-04-04 2003-04-04 Phacoemulsification needle
US10/806,470 Expired - Lifetime US7204820B2 (en) 2003-04-04 2004-03-23 Phacoemulsification needle

Family Applications After (1)

Application Number Title Priority Date Filing Date
US10/806,470 Expired - Lifetime US7204820B2 (en) 2003-04-04 2004-03-23 Phacoemulsification needle

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US (2) US20040199192A1 (en)
ES (1) ES2350768T3 (en)

Cited By (25)

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US7037296B2 (en) * 2002-04-04 2006-05-02 Advanced Medical Optics, Inc. Curved multi-purpose phacoemulsification needle
US20070060926A1 (en) * 2005-09-09 2007-03-15 Escaf Luis J Ultrasonic knife
US20070260199A1 (en) * 2006-05-02 2007-11-08 Advanced Medical Optics, Inc. Multi-purpose phacoemulsification needle
US20080103430A1 (en) * 2006-10-30 2008-05-01 Gomez Mario P Apparatus to facilitate removal of cataracts from the eyes
US20080172060A1 (en) * 2004-06-29 2008-07-17 Spine Wave, Inc. Articulating Injection Cannula and Seal Assembly
US20090093750A1 (en) * 2007-10-05 2009-04-09 Herman Wesley K Probe tip and infusion sleeve for use with ophthalmological surgery
US20090247936A1 (en) * 2008-03-24 2009-10-01 Alcon Research Ltd. Streamlined ultrasonic device and method of use
US20100036388A1 (en) * 2006-10-30 2010-02-11 Gomez Mario P Apparatus to facilitate removal of cataracts of from the eyes
WO2010093347A1 (en) * 2009-02-13 2010-08-19 Ravi Nallakrishnan Apparatus and method for phacoemulsification
US7846134B1 (en) * 2006-06-23 2010-12-07 Timothy Nadolski Flexible walled cannula
WO2012082644A2 (en) * 2010-12-14 2012-06-21 Ontium, Llc Medical suction clearing apparatus
US20120232496A1 (en) * 2011-03-22 2012-09-13 Navilyst Medical, Inc. High Flow Catheters
US20130096569A1 (en) * 2010-01-18 2013-04-18 Takayuki Akahoshi Phacoemulsification Needle
US20140081151A1 (en) * 2012-09-18 2014-03-20 Liviu B. Saimovici Cataract removal device and integrated tip
US9233021B2 (en) 2009-07-01 2016-01-12 Alcon Research, Ltd. Phacoemulsification hook tip
US9402766B2 (en) * 2007-11-01 2016-08-02 Art, Limited Apparatus and method for phacoemulsification
US9913960B2 (en) 2010-08-12 2018-03-13 C. R. Bard, Inc. Trimmable catheter including distal portion stability features
US10238833B2 (en) 2010-08-12 2019-03-26 C. R. Bard, Inc. Access port and catheter assembly including catheter distal portion stability features
US10258505B2 (en) 2010-09-17 2019-04-16 Alcon Research, Ltd. Balanced phacoemulsification tip
US10624784B2 (en) 2012-09-18 2020-04-21 Liviu B. Saimovici Cataract removal device and integrated tip
US10729881B2 (en) 2011-03-22 2020-08-04 Angiodynamics, Inc. High flow catheters
US10918783B2 (en) 2007-10-05 2021-02-16 Herman Wesley K Probe tip and infusion sleeve for use in ophthalmological surgery
US20220401120A1 (en) * 2021-06-16 2022-12-22 Ludwig David Orozco Castillo Systems and Methods For Ball Probe Ultrasonic Foraminotomy
US11540948B1 (en) * 2021-12-06 2023-01-03 Jon Gordon Dishler Vibrating surgical instrument
USD974558S1 (en) 2020-12-18 2023-01-03 Stryker European Operations Limited Ultrasonic knife

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US10835307B2 (en) 2001-06-12 2020-11-17 Ethicon Llc Modular battery powered handheld surgical instrument containing elongated multi-layered shaft
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