US20070073325A1 - Ultrasonic surgical blade and instrument having a gain step - Google Patents

Ultrasonic surgical blade and instrument having a gain step Download PDF

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Publication number
US20070073325A1
US20070073325A1 US11/555,889 US55588906A US2007073325A1 US 20070073325 A1 US20070073325 A1 US 20070073325A1 US 55588906 A US55588906 A US 55588906A US 2007073325 A1 US2007073325 A1 US 2007073325A1
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United States
Prior art keywords
ultrasonic
blade
distal
ultrasonic surgical
gain step
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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
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US11/555,889
Inventor
Foster Stulen
Steven Neuenfeldt
Kevin Houser
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.)
Cilag GmbH International
Original Assignee
Stulen Foster B
Neuenfeldt Steven K
Houser Kevin L
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Publication date
Application filed by Stulen Foster B, Neuenfeldt Steven K, Houser Kevin L filed Critical Stulen Foster B
Priority to US11/555,889 priority Critical patent/US20070073325A1/en
Publication of US20070073325A1 publication Critical patent/US20070073325A1/en
Assigned to CILAG GMBH INTERNATIONAL reassignment CILAG GMBH INTERNATIONAL ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ETHICON LLC
Abandoned legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • A61B17/320068Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
    • A61B18/22Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
    • A61B18/26Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor for producing a shock wave, e.g. laser lithotripsy
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/22004Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
    • A61B17/22012Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
    • A61B2017/22014Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being outside patient's body; with an ultrasound transmission member; with a wave guide; with a vibrated guide wire
    • A61B2017/22015Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being outside patient's body; with an ultrasound transmission member; with a wave guide; with a vibrated guide wire with details of the transmission member
    • A61B2017/22018Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being outside patient's body; with an ultrasound transmission member; with a wave guide; with a vibrated guide wire with details of the transmission member segmented along its length
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • A61B17/320068Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320072Working tips with special features, e.g. extending parts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • A61B17/320068Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320072Working tips with special features, e.g. extending parts
    • A61B2017/32008Working tips with special features, e.g. extending parts preventing clogging of suction channel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • A61B17/320068Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320089Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic node location
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00General characteristics of surgical instruments
    • A61B2217/002Auxiliary appliance
    • A61B2217/005Auxiliary appliance with suction drainage system

Definitions

  • the present invention relates generally to ultrasonic surgical blades and ultrasonic surgical instruments which include ultrasonic surgical blades, and more particularly to those having a gain step.
  • Ultrasonic surgical instruments which include ultrasonic surgical blades.
  • a handpiece of a known ultrasonic surgical instrument includes an ultrasonic transducer which is powered by an ultrasonic generator through a cable.
  • An ultrasonic transmission rod of the instrument has a proximal end and a distal end, wherein the proximal end is operatively connected to the ultrasonic transducer.
  • An ultrasonic surgical blade is activated by the distal end of the ultrasonic transmission rod.
  • Known blade shapes include straight blades and asymmetric about a longitudinal axis or about a curved centerline of the blade.
  • a known ultrasonic surgical blade is a cylindrical blade which has a distal tip, a most-distal vibration node (a vibration node being a point of substantially zero displacement), and a second most-distal vibration antinode (a vibration antinode being a point of maximum displacement relative to all other points in a half wave), wherein the most-distal vibration antinode is the distal tip.
  • Longitudinal ultrasonic vibration of the blade generates motion and heat in the contacted tissue, wherein the heat primarily provides the means for the blade to cut and/or coagulate patient tissue.
  • the blade has a gain step located a distance from the most-distal vibration node which is less than 5% of the distance between the distal tip and the second-most-distal vibration antinode because locating the gain step close to the most-distal vibration node maximizes the vibration amplitude gain.
  • the known blade consists of a larger-diameter right-circular geometrically-solid cylinder from the second most-distal vibration antinode to the most-distal vibration node.
  • the known blade consists of a smaller-diameter right-circular geometrically-solid cylinder from the most-distal vibration node to the distal tip.
  • the change in diameter provides a gain in vibration amplitude for the smaller-diameter section of the blade equal to the ratio of the transverse cross-sectional areas of the larger diameter blade section to the smaller diameter blade section when the gain step is located at the node.
  • the active length of an ultrasonic surgical blade is defined by applicants as the distance from the distal tip to where the vibration amplitude (i.e., the longitudinal vibration amplitude) has fallen to 50% of the tip amplitude.
  • the blade is not considered useful beyond its active length.
  • the active length is about 15 mm for a straight cylindrical titanium rod at a resonant frequency of about 55.5 kHz.
  • a first expression of an embodiment of the invention is for an ultrasonic surgical blade including an ultrasonic-surgical-blade body.
  • the ultrasonic-surgical-blade body has a distal tip which is a most-distal vibration antinode, has a most-distal vibration node, has a second-most-distal vibration antinode, and has a gain step.
  • the gain step is located between the second-most-distal vibration antinode and the distal tip, and the gain step is spaced apart from the most-distal vibration node by a gain-step distance greater than 5% of the distance between the second-most-distal vibration antinode and the distal tip.
  • a second expression of an embodiment of the invention is for an ultrasonic surgical instrument including a handpiece, an ultrasonic transmission rod, and an ultrasonic surgical blade.
  • the handpiece includes an ultrasonic transducer.
  • the ultrasonic transmission rod has a proximal end and a distal end, wherein the proximal end is operatively connected to the ultrasonic transducer.
  • the ultrasonic surgical blade is activated by the distal end and includes an ultrasonic-surgical-blade body.
  • the ultrasonic-surgical-blade body has a distal tip which is a most-distal vibration antinode, has a most-distal vibration node, has a second-most-distal vibration antinode, and has a gain step.
  • the gain step is located between the second-most-distal vibration antinode and the distal tip, and the gain step is spaced apart from the most-distal vibration node by a gain-step distance greater than 5% of the distance between the second-most-distal vibration antinode and the distal tip.
  • a third expression of an embodiment of the invention is for an ultrasonic surgical blade including an ultrasonic-surgical-blade body.
  • the ultrasonic-surgical-blade body has, in any half wave length of the ultrasonic-surgical-blade body, a first vibration antinode, a vibration node, a second vibration antinode, and a gain step.
  • the gain step is located between the second vibration antinode and the first vibration antinode.
  • the gain step is spaced apart from the vibration node by a gain-step distance greater than 5% of the distance between the second vibration antinode and the first vibration antinode.
  • the present invention has, without limitation, application in robotic-assisted surgery.
  • FIG. 1 is a schematic view of a first embodiment of an ultrasonic surgical instrument including a first embodiment of an ultrasonic surgical blade of the invention
  • FIG. 2 is a longitudinal cross-sectional view of the most-distal one-half wavelength, including the distal tip, of the ultrasonic surgical blade of FIG. 1 ;
  • FIG. 3 is a longitudinal cross-sectional view of the most-distal one-half wavelength, including the distal tip, of a second embodiment of the surgical blade of FIG. 1 ;
  • FIG. 4 is a longitudinal cross-sectional view of the most-distal one-half wavelength, including the distal tip, of a third embodiment of the surgical blade of FIG. 1 .
  • any one or more of the following-described expressions of an embodiment, examples, etc. can be combined with any one or more of the other following-described expressions of an embodiment, examples, etc.
  • a gain feature of a reduced diameter can be combined with a gain feature of a hole.
  • FIGS. 1-2 illustrate a first embodiment of the invention.
  • a first expression of the first embodiment of FIGS. 1-2 is for an ultrasonic surgical blade 10 including an ultrasonic-surgical-blade body 12 having a distal tip 14 which is a most-distal vibration antinode (a vibration antinode being a point of maximum displacement relative to all other points in a half wave), having a most-distal vibration node 16 (a vibration node being a point of substantially zero displacement), having a second-most-distal vibration antinode 18 , and having a gain step 20 .
  • the gain step 20 is disposed between the second-most-distal vibration antinode 18 and the distal tip 14 and is spaced apart from the most-distal vibration node 16 by a gain-step distance 22 greater than 5% of the distance 24 between the second-most-distal vibration antinode 18 and the distal tip 14 .
  • the gain step distance 22 is between substantially 25% and substantially 45% of the distance 24 between the second-most-distal vibration antinode 18 and the distal tip 14 .
  • Those of ordinary skill in the art employing the teachings of the invention for the location of the gain step 20 , can create analytical blade models and evaluate them using a computer program to optimize design trade-offs between increased or decreased active length of the ultrasonic surgical blade and increased or decreased amplitude of the longitudinal ultrasonic vibrations for locating the gain step 20 substantially away from the most-distal vibration node 16 in the direction of the distal tip 14 or in the direction of the second-most-distal vibration antinode 18 .
  • the maximum vibration amplitude of the ultrasonic-surgical-blade body 12 proximal the gain step 20 is less than the maximum vibration amplitude of the ultrasonic-surgical-blade body 12 distal the gain step 20 .
  • the gain of the gain step 20 is greater than unity and results from a reduction in mass of the ultrasonic-surgical-blade body 12 between the gain step 20 and the distal tip 14 compared to the mass of the ultrasonic-surgical-blade body 12 between the gain step 20 and the second-most-distal vibration antinode 18 .
  • the maximum vibration amplitude of the ultrasonic-surgical-blade body proximal the gain step is greater than the maximum vibration amplitude of the ultrasonic-surgical-blade body distal the gain step.
  • the gain of the gain step is less than unity and results from an increase in mass of the ultrasonic-surgical-blade body between the gain step and the distal tip compared to the mass of the ultrasonic-surgical-blade body between the gain step and the second-most-distal vibration antinode.
  • This embodiment can be easily visualized, in one example, by switching the locations of the distal tip 14 and the second-most-distal vibration antinode 18 in FIG. 2 .
  • the gain step 20 is disposed between the most-distal vibration node 16 and the distal tip 14 resulting in an increased active length of the ultrasonic surgical blade 10 .
  • the gain step is disposed between the most-distal vibration node and the second-most-distal vibration antinode resulting in a decreased half wave length of the ultrasonic surgical blade. This embodiment can be easily visualized by moving the gain step 20 between the most-distal vibration node 16 and the second-most-distal vibration antinode 18 in FIG. 2 .
  • the ultrasonic-surgical-blade body 12 has a longitudinal axis 26 and consists essentially of a first geometric solid 28 having a substantially constant first transverse cross-sectional area from the gain step 20 to the distal tip 14 and a second geometric solid 30 having a substantially constant second transverse cross-sectional area from the gain step 20 to the second-most-distal vibration antinode 18 .
  • the second transverse cross-sectional area is different than the first transverse cross-sectional area.
  • the shape and size of the first external perimeter of the first transverse cross-sectional area is substantially equal to the shape and size of the second external perimeter of the second transverse cross-sectional area.
  • the void 32 includes a first longitudinal hole 34 which is disposed in the first geometric solid 28 and which extends proximally from the distal tip 14 . Applicants found that locating the gain step 20 at the point where the gain equaled the square root of the ratio of the transverse cross-sectional areas of the second geometric solid 30 to the first geometric solid 28 optimized the increase in the active length of the blade.
  • the void 32 includes a second longitudinal hole 36 which is disposed in the second geometric solid 30 and which is in fluid communication with the first longitudinal hole 34 , and the first and second longitudinal holes 34 and 36 are adapted for irrigation and/or suction.
  • the ultrasonic surgical blade 10 also includes a membrane 38 which has a composition substantially the same as the composition of the ultrasonic-surgical-blade body 12 , which covers the first longitudinal hole 34 , and which is removably or permanently attached to the first geometric solid 28 at the distal tip 14 . It is noted that the membrane 38 would be removed from the first geometric solid 28 in FIG. 2 when irrigation and/or suction is desired.
  • membrane 38 may be made from a permeable fabric, such as a wire mesh or screen, or sintered mesh made from titanium or other appropriate material to facilitate irrigation and/or suction.
  • the ultrasonic-surgical-blade body has a longitudinal axis and consists essentially of a first geometric solid and a second geometric solid.
  • the first geometric solid has a first mass, extends from the gain step to the distal tip, and has a non-constant first transverse cross-sectional area.
  • the second geometric solid has a second mass, extends from the gain step to the second-most-distal vibration antinode, and has a non-constant second transverse cross-sectional area. The second mass is different than the first mass.
  • This embodiment is easily visualized, in one example, by considering the second longitudinal hole 36 to have a diameter which decreases from the second-most-distal vibration antinode 18 to the gain step 20 and the first longitudinal hole 34 to have a diameter which increases from the gain step 20 to the distal tip 14 in FIG. 2 .
  • the variations, modifications, etc. of the preceding paragraph are equally applicable to this embodiment.
  • the ultrasonic surgical blade body has a longitudinal axis and consists essentially of a first geometric solid having a first mass and having a first axial length extending from the gain step to the distal tip and a second geometric solid having a second mass and having a second axial length extending from the gain step to the second-most-distal vibration antinode.
  • the second mass is different than the first mass.
  • One of the first and second geometric solids has a substantially constant transverse cross-sectional area along its corresponding axial length, and a different one of the first and second geometric solids has a non-constant transverse cross-sectional area along its corresponding axial length.
  • the ultrasonic-surgical-blade body 12 has a longitudinal axis 26 and is substantially symmetrical about the longitudinal axis 26 .
  • the ultrasonic-surgical-blade body has a longitudinal axis, has an active length, and is substantially asymmetric about the longitudinal axis along at least a portion of the active length.
  • the ultrasonic-surgical-blade body is curved. This variation is easily visualized, in one example, by curving the distal portion of the ultrasonic-surgical-blade body 12 upward from the longitudinal axis 26 in FIG. 2 .
  • the ultrasonic-surgical-blade body 12 has at least one gain feature 40 selected from the group consisting of: a discrete change in outer diameter or perimeter, a taper, a longitudinal hole, a discrete change in diameter of a longitudinal hole, a transverse hole, a surface flat, and a surface slot.
  • the gain step 20 is the location of the portion of the gain feature 40 which is closest to the most-distal vibration node 16 .
  • the term “hole” includes a through hole and a non-through hole. Other gain features are left to the artisan.
  • FIG. 3 illustrates a second embodiment of the ultrasonic surgical blade 110 of the invention.
  • the ultrasonic-surgical-blade body 112 has an additional gain step 142 which is spaced-apart from the gain step 120 , which is disposed between the second-most-distal vibration antinode 118 and the distal tip 114 , and which is spaced apart from the most-distal vibration node 116 by a gain-step distance 122 greater than 5% of the distance 124 between the second-most-distal vibration antinode 118 and the distal tip 114 .
  • the ultrasonic-surgical-blade body 112 has a longitudinal axis 126 and a longitudinally hole 134 , wherein the longitudinal hole has a shoulder 144 defining the additional gain step 142 .
  • a third embodiment of an ultrasonic surgical blade 210 is shown in FIG. 4 , wherein the ultrasonic-surgical-blade body 212 consists essentially of a right-circular first geometrically-solid cylinder 288 from the gain step 220 to the distal tip 214 .
  • the ultrasonic-surgical-blade body 212 consists essentially of a right-circular second geometrically-solid cylinder 230 from the gain step 220 to the second-most-distal vibration antinode 218 .
  • the diameter of the first geometrically-solid cylinder 288 is less than the diameter of the second geometrically-solid cylinder 230 .
  • the gain feature 240 is a reduced diameter from the distal tip 214 to the gain step 220 which reduces mass and which creates the first geometrically-solid cylinder 288 .
  • the gain step 220 is disposed between the second-most-distal vibration antinode 218 and the distal tip 214 and is spaced apart from the most-distal vibration node 216 by a gain-step distance 222 greater than 5% of the distance 224 between the second-most-distal vibration antinode 218 and the distal tip 214 .
  • the ultrasonic-surgical-blade body 12 consists essentially of titanium.
  • blade bodies consist essentially of aluminum, a ceramic, sapphire, or any other material that transmits ultrasound in an efficient manner.
  • the active length of an ultrasonic surgical blade 10 is defined as the distance from the distal tip 14 to where the vibration amplitude (i.e., the longitudinal vibration amplitude) has fallen to 50% of the tip amplitude.
  • the blade is not considered useful beyond its active length.
  • the active length is about 15 mm for a straight cylindrical titanium rod at a resonant frequency of about 55.5 kHz without applying the principles of the invention.
  • An increase in active length up to about 5 mm can be expected using the described principles of the invention when the gain step 20 is disposed between the most-distal vibration node 16 and the distal tip 14 .
  • the ultrasonic surgical blade 10 is used alone as the end effector of an ultrasonic surgical instrument. In another arrangement, the ultrasonic surgical blade 10 is used with a clamp arm (not shown) to create a shears end effector of an ultrasonic surgical instrument for cutting and/or coagulating patient tissue.
  • a second expression of the first embodiment of FIGS. 1-2 is for an ultrasonic surgical instrument 46 including a handpiece 48 , an ultrasonic transmission rod 50 , and an ultrasonic surgical blade 10 .
  • the handpiece 48 includes an ultrasonic transducer 52 .
  • the ultrasonic transmission rod 50 has a proximal end and a distal end, wherein the proximal end is operatively connected to the ultrasonic transducer 52 .
  • the ultrasonic surgical blade 10 is activated by the distal end and includes an ultrasonic-surgical-blade body 12 .
  • the ultrasonic-surgical-blade body 12 has a distal tip 14 which is a most-distal vibration antinode, has a most-distal vibration node 16 , has a second-most-distal vibration antinode 18 , and has a gain step 20 .
  • the gain step 20 is disposed between the second-most-distal vibration antinode 18 and the distal tip 14 and is spaced apart from the most-distal vibration node 16 by a gain-step distance 22 greater than 5% of the distance 24 between the second-most-distal vibration antinode 18 and the distal tip 14 .
  • the ultrasonic surgical blade 10 is a monolithic portion of the ultrasonic transmission rod 50 .
  • the ultrasonic surgical blade is a separate piece and is attached to the ultrasonic transmission rod. It is noted that the embodiments, implementations, examples, illustrations, etc. previously described for the ultrasonic surgical blade are equally applicable to the ultrasonic surgical instrument.
  • a third expression of the first embodiment of FIGS. 1-2 is for an ultrasonic surgical blade including an ultrasonic-surgical-blade body having, in any half wave length of the ultrasonic-surgical-blade body, a first vibration antinode, a vibration node, a second vibration antinode, and a gain step, wherein the gain step is disposed between the second vibration antinode and the first vibration antinode, and wherein the gain step is spaced apart from the vibration node by a gain-step distance greater than 5% of the distance between the second vibration antinode and the first vibration antinode.
  • the third expression does not limit the location of the half wave to the last half wave length of the blade body as with the previously presented second expression, and that apart from the second expression's location of the half wave, the embodiments, implementations, examples, illustrations, etc. previously described for the second expression are equally applicable to the third expression.

Abstract

An ultrasonic surgical blade, and an instrument, having a gain step. The blade body has, in any half wave length of the ultrasonic-surgical-blade body, a first vibration antinode, a vibration node, a second vibration antinode, and a gain step. The gain step is located between the second vibration antinode and the first vibration antinode. The gain step is spaced apart from the vibration node by a gain-step distance greater than 5% of the distance between the second vibration antinode and the first vibration antinode. The instrument includes the blade, a handpiece having an ultrasonic transducer, and an ultrasonic transmission rod whose proximal end is operatively connected to the ultrasonic transducer and whose distal end activates the blade. In one option, the first vibration antinode is the distal tip, and the gain step is located between the vibration node and the distal tip, resulting in an increased active length of the blade.

Description

    RELATED APPLICATIONS
  • The application is a continuation of U.S. patent application, Ser. No. 10/701,588, filed on Nov. 5, 2003.
  • FIELD OF THE INVENTION
  • The present invention relates generally to ultrasonic surgical blades and ultrasonic surgical instruments which include ultrasonic surgical blades, and more particularly to those having a gain step.
  • BACKGROUND OF THE INVENTION
  • Ultrasonic surgical instruments are known which include ultrasonic surgical blades. A handpiece of a known ultrasonic surgical instrument includes an ultrasonic transducer which is powered by an ultrasonic generator through a cable. An ultrasonic transmission rod of the instrument has a proximal end and a distal end, wherein the proximal end is operatively connected to the ultrasonic transducer. An ultrasonic surgical blade is activated by the distal end of the ultrasonic transmission rod. Known blade shapes include straight blades and asymmetric about a longitudinal axis or about a curved centerline of the blade.
  • A known ultrasonic surgical blade is a cylindrical blade which has a distal tip, a most-distal vibration node (a vibration node being a point of substantially zero displacement), and a second most-distal vibration antinode (a vibration antinode being a point of maximum displacement relative to all other points in a half wave), wherein the most-distal vibration antinode is the distal tip. Longitudinal ultrasonic vibration of the blade generates motion and heat in the contacted tissue, wherein the heat primarily provides the means for the blade to cut and/or coagulate patient tissue. The blade has a gain step located a distance from the most-distal vibration node which is less than 5% of the distance between the distal tip and the second-most-distal vibration antinode because locating the gain step close to the most-distal vibration node maximizes the vibration amplitude gain. The known blade consists of a larger-diameter right-circular geometrically-solid cylinder from the second most-distal vibration antinode to the most-distal vibration node. The known blade consists of a smaller-diameter right-circular geometrically-solid cylinder from the most-distal vibration node to the distal tip. The change in diameter provides a gain in vibration amplitude for the smaller-diameter section of the blade equal to the ratio of the transverse cross-sectional areas of the larger diameter blade section to the smaller diameter blade section when the gain step is located at the node.
  • The active length of an ultrasonic surgical blade is defined by applicants as the distance from the distal tip to where the vibration amplitude (i.e., the longitudinal vibration amplitude) has fallen to 50% of the tip amplitude. The blade is not considered useful beyond its active length. The active length is about 15 mm for a straight cylindrical titanium rod at a resonant frequency of about 55.5 kHz.
  • It is known in ultrasonic welding of plastics to provide an ultrasonic welding rod having a gain step, such as a discontinuity between a larger and a smaller rod diameter, which is located between the most-distal vibration node and the distal end of the welding horn and which is spaced apart from the most-distal vibration node of the welding rod by a distance less than 5% of the distance between the second-most-distal vibration antinode and the distal end of the welding rod. It is also known in ultrasonic welding of plastics to provide an ultrasonic welding rod with a hole or a slot to provide a gain in longitudinal vibration amplitude.
  • What is needed is an improved ultrasonic surgical blade, and an improved ultrasonic surgical instrument which includes an ultrasonic surgical blade, having a longer or shorter active length.
  • SUMMARY OF THE INVENTION
  • A first expression of an embodiment of the invention is for an ultrasonic surgical blade including an ultrasonic-surgical-blade body. The ultrasonic-surgical-blade body has a distal tip which is a most-distal vibration antinode, has a most-distal vibration node, has a second-most-distal vibration antinode, and has a gain step. The gain step is located between the second-most-distal vibration antinode and the distal tip, and the gain step is spaced apart from the most-distal vibration node by a gain-step distance greater than 5% of the distance between the second-most-distal vibration antinode and the distal tip.
  • A second expression of an embodiment of the invention is for an ultrasonic surgical instrument including a handpiece, an ultrasonic transmission rod, and an ultrasonic surgical blade. The handpiece includes an ultrasonic transducer. The ultrasonic transmission rod has a proximal end and a distal end, wherein the proximal end is operatively connected to the ultrasonic transducer. The ultrasonic surgical blade is activated by the distal end and includes an ultrasonic-surgical-blade body. The ultrasonic-surgical-blade body has a distal tip which is a most-distal vibration antinode, has a most-distal vibration node, has a second-most-distal vibration antinode, and has a gain step. The gain step is located between the second-most-distal vibration antinode and the distal tip, and the gain step is spaced apart from the most-distal vibration node by a gain-step distance greater than 5% of the distance between the second-most-distal vibration antinode and the distal tip.
  • A third expression of an embodiment of the invention is for an ultrasonic surgical blade including an ultrasonic-surgical-blade body. The ultrasonic-surgical-blade body has, in any half wave length of the ultrasonic-surgical-blade body, a first vibration antinode, a vibration node, a second vibration antinode, and a gain step. The gain step is located between the second vibration antinode and the first vibration antinode. The gain step is spaced apart from the vibration node by a gain-step distance greater than 5% of the distance between the second vibration antinode and the first vibration antinode.
  • Several benefits and advantages are obtained from one or more of the expressions of the embodiment of the invention. Applicants found that locating a gain step having a gain greater than unity (i.e., an amplification step) further than conventionally taught from the most-distal vibration node toward the distal tip further increased the active length of the ultrasonic surgical blade even though the vibration amplitude gain was less than when conventionally locating the gain step closer to the most-distal vibration node. Applicants determined that locating the gain step further than conventionally taught from the most-distal vibration node toward the second-most-distal vibration antinode should shorten the half wave length of the ultrasonic surgical blade. Applicants also determined that such changes in active and half wave lengths of the ultrasonic surgical blade would also result from gain steps having gains less than unity (i.e., a deamplification step) but with a deamplification step causing a decrease in active length where an identically located amplification step would cause an increase in active length and with a deamplification step causing an increase in active length where an identically located amplification step would cause a decrease in active length. Being able to lengthen or shorten the active length of an ultrasonic surgical blade offers advantages for particular surgical applications, as can be appreciated by those skilled in the art.
  • The present invention has, without limitation, application in robotic-assisted surgery.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a schematic view of a first embodiment of an ultrasonic surgical instrument including a first embodiment of an ultrasonic surgical blade of the invention;
  • FIG. 2 is a longitudinal cross-sectional view of the most-distal one-half wavelength, including the distal tip, of the ultrasonic surgical blade of FIG. 1;
  • FIG. 3 is a longitudinal cross-sectional view of the most-distal one-half wavelength, including the distal tip, of a second embodiment of the surgical blade of FIG. 1; and
  • FIG. 4 is a longitudinal cross-sectional view of the most-distal one-half wavelength, including the distal tip, of a third embodiment of the surgical blade of FIG. 1.
  • DETAILED DESCRIPTION OF THE INVENTION
  • Before explaining the present invention in detail, it should be noted that the invention is not limited in its application or use to the details of construction and arrangement of parts illustrated in the accompanying drawings and description. The illustrative embodiment of the invention may be implemented or incorporated in other embodiments, variations and modifications, and may be practiced or carried out in various ways. Furthermore, unless otherwise indicated, the terms and expressions employed herein have been chosen for the purpose of describing the illustrative embodiment of the present invention for the convenience of the reader and are not for the purpose of limiting the invention.
  • It is understood that any one or more of the following-described expressions of an embodiment, examples, etc. can be combined with any one or more of the other following-described expressions of an embodiment, examples, etc. For example, and without limitation, a gain feature of a reduced diameter can be combined with a gain feature of a hole.
  • Referring now to the drawings, FIGS. 1-2 illustrate a first embodiment of the invention. A first expression of the first embodiment of FIGS. 1-2 is for an ultrasonic surgical blade 10 including an ultrasonic-surgical-blade body 12 having a distal tip 14 which is a most-distal vibration antinode (a vibration antinode being a point of maximum displacement relative to all other points in a half wave), having a most-distal vibration node 16 (a vibration node being a point of substantially zero displacement), having a second-most-distal vibration antinode 18, and having a gain step 20. The gain step 20 is disposed between the second-most-distal vibration antinode 18 and the distal tip 14 and is spaced apart from the most-distal vibration node 16 by a gain-step distance 22 greater than 5% of the distance 24 between the second-most-distal vibration antinode 18 and the distal tip 14.
  • In one implementation of the first expression of the first embodiment of FIGS. 1-2, the gain step distance 22 is between substantially 25% and substantially 45% of the distance 24 between the second-most-distal vibration antinode 18 and the distal tip 14. Those of ordinary skill in the art, employing the teachings of the invention for the location of the gain step 20, can create analytical blade models and evaluate them using a computer program to optimize design trade-offs between increased or decreased active length of the ultrasonic surgical blade and increased or decreased amplitude of the longitudinal ultrasonic vibrations for locating the gain step 20 substantially away from the most-distal vibration node 16 in the direction of the distal tip 14 or in the direction of the second-most-distal vibration antinode 18.
  • In one example of the first expression of the first embodiment of FIGS. 1-2, between the second-most-distal vibration antinode 18 and the distal tip 14, the maximum vibration amplitude of the ultrasonic-surgical-blade body 12 proximal the gain step 20 is less than the maximum vibration amplitude of the ultrasonic-surgical-blade body 12 distal the gain step 20. In this example, the gain of the gain step 20 is greater than unity and results from a reduction in mass of the ultrasonic-surgical-blade body 12 between the gain step 20 and the distal tip 14 compared to the mass of the ultrasonic-surgical-blade body 12 between the gain step 20 and the second-most-distal vibration antinode 18.
  • In a different embodiment, not shown, between the second-most-distal vibration antinode and the distal tip, the maximum vibration amplitude of the ultrasonic-surgical-blade body proximal the gain step is greater than the maximum vibration amplitude of the ultrasonic-surgical-blade body distal the gain step. In this embodiment, the gain of the gain step is less than unity and results from an increase in mass of the ultrasonic-surgical-blade body between the gain step and the distal tip compared to the mass of the ultrasonic-surgical-blade body between the gain step and the second-most-distal vibration antinode. This embodiment can be easily visualized, in one example, by switching the locations of the distal tip 14 and the second-most-distal vibration antinode 18 in FIG. 2.
  • In one enablement of the first expression of the first embodiment of FIGS. 1-2, the gain step 20 is disposed between the most-distal vibration node 16 and the distal tip 14 resulting in an increased active length of the ultrasonic surgical blade 10. In a different embodiment, not shown, the gain step is disposed between the most-distal vibration node and the second-most-distal vibration antinode resulting in a decreased half wave length of the ultrasonic surgical blade. This embodiment can be easily visualized by moving the gain step 20 between the most-distal vibration node 16 and the second-most-distal vibration antinode 18 in FIG. 2.
  • In one illustration of the first expression of the first embodiment of FIGS. 1-2, the ultrasonic-surgical-blade body 12 has a longitudinal axis 26 and consists essentially of a first geometric solid 28 having a substantially constant first transverse cross-sectional area from the gain step 20 to the distal tip 14 and a second geometric solid 30 having a substantially constant second transverse cross-sectional area from the gain step 20 to the second-most-distal vibration antinode 18. The second transverse cross-sectional area is different than the first transverse cross-sectional area. In one variation, the shape and size of the first external perimeter of the first transverse cross-sectional area is substantially equal to the shape and size of the second external perimeter of the second transverse cross-sectional area. In one modification, at least one of the first and second transverse cross-sectional areas surrounds a void 32. In one construction, the void 32 includes a first longitudinal hole 34 which is disposed in the first geometric solid 28 and which extends proximally from the distal tip 14. Applicants found that locating the gain step 20 at the point where the gain equaled the square root of the ratio of the transverse cross-sectional areas of the second geometric solid 30 to the first geometric solid 28 optimized the increase in the active length of the blade. In one arrangement, the void 32 includes a second longitudinal hole 36 which is disposed in the second geometric solid 30 and which is in fluid communication with the first longitudinal hole 34, and the first and second longitudinal holes 34 and 36 are adapted for irrigation and/or suction. In another arrangement, the ultrasonic surgical blade 10 also includes a membrane 38 which has a composition substantially the same as the composition of the ultrasonic-surgical-blade body 12, which covers the first longitudinal hole 34, and which is removably or permanently attached to the first geometric solid 28 at the distal tip 14. It is noted that the membrane 38 would be removed from the first geometric solid 28 in FIG. 2 when irrigation and/or suction is desired. Alternatively, membrane 38 may be made from a permeable fabric, such as a wire mesh or screen, or sintered mesh made from titanium or other appropriate material to facilitate irrigation and/or suction.
  • In a different embodiment, not shown, the ultrasonic-surgical-blade body has a longitudinal axis and consists essentially of a first geometric solid and a second geometric solid. The first geometric solid has a first mass, extends from the gain step to the distal tip, and has a non-constant first transverse cross-sectional area. The second geometric solid has a second mass, extends from the gain step to the second-most-distal vibration antinode, and has a non-constant second transverse cross-sectional area. The second mass is different than the first mass. This embodiment is easily visualized, in one example, by considering the second longitudinal hole 36 to have a diameter which decreases from the second-most-distal vibration antinode 18 to the gain step 20 and the first longitudinal hole 34 to have a diameter which increases from the gain step 20 to the distal tip 14 in FIG. 2. The variations, modifications, etc. of the preceding paragraph are equally applicable to this embodiment.
  • In a further embodiment, not shown, the ultrasonic surgical blade body has a longitudinal axis and consists essentially of a first geometric solid having a first mass and having a first axial length extending from the gain step to the distal tip and a second geometric solid having a second mass and having a second axial length extending from the gain step to the second-most-distal vibration antinode. The second mass is different than the first mass. One of the first and second geometric solids has a substantially constant transverse cross-sectional area along its corresponding axial length, and a different one of the first and second geometric solids has a non-constant transverse cross-sectional area along its corresponding axial length. This embodiment is easily visualized, in one example, by considering the first longitudinal hole 34 to have a diameter which increases from the gain step 20 to the distal tip 14 in FIG. 2. The variations, modifications, etc. of the second preceding paragraph are equally applicable to this embodiment.
  • In one design of the first expression of the first embodiment of FIGS. 1-2, the ultrasonic-surgical-blade body 12 has a longitudinal axis 26 and is substantially symmetrical about the longitudinal axis 26. In another design, not shown, the ultrasonic-surgical-blade body has a longitudinal axis, has an active length, and is substantially asymmetric about the longitudinal axis along at least a portion of the active length. In one variation, the ultrasonic-surgical-blade body is curved. This variation is easily visualized, in one example, by curving the distal portion of the ultrasonic-surgical-blade body 12 upward from the longitudinal axis 26 in FIG. 2.
  • In one deployment of the first expression of the first embodiment of FIGS. 1-2, the ultrasonic-surgical-blade body 12 has at least one gain feature 40 selected from the group consisting of: a discrete change in outer diameter or perimeter, a taper, a longitudinal hole, a discrete change in diameter of a longitudinal hole, a transverse hole, a surface flat, and a surface slot. It is noted that, in this deployment, the gain step 20 is the location of the portion of the gain feature 40 which is closest to the most-distal vibration node 16. It is also noted that the term “hole” includes a through hole and a non-through hole. Other gain features are left to the artisan.
  • FIG. 3 illustrates a second embodiment of the ultrasonic surgical blade 110 of the invention. In this embodiment, the ultrasonic-surgical-blade body 112 has an additional gain step 142 which is spaced-apart from the gain step 120, which is disposed between the second-most-distal vibration antinode 118 and the distal tip 114, and which is spaced apart from the most-distal vibration node 116 by a gain-step distance 122 greater than 5% of the distance 124 between the second-most-distal vibration antinode 118 and the distal tip 114. The ultrasonic-surgical-blade body 112 has a longitudinal axis 126 and a longitudinally hole 134, wherein the longitudinal hole has a shoulder 144 defining the additional gain step 142.
  • A third embodiment of an ultrasonic surgical blade 210 is shown in FIG. 4, wherein the ultrasonic-surgical-blade body 212 consists essentially of a right-circular first geometrically-solid cylinder 288 from the gain step 220 to the distal tip 214. In this embodiment, the ultrasonic-surgical-blade body 212 consists essentially of a right-circular second geometrically-solid cylinder 230 from the gain step 220 to the second-most-distal vibration antinode 218. The diameter of the first geometrically-solid cylinder 288 is less than the diameter of the second geometrically-solid cylinder 230. It is noted that in this embodiment, the gain feature 240 is a reduced diameter from the distal tip 214 to the gain step 220 which reduces mass and which creates the first geometrically-solid cylinder 288. The gain step 220 is disposed between the second-most-distal vibration antinode 218 and the distal tip 214 and is spaced apart from the most-distal vibration node 216 by a gain-step distance 222 greater than 5% of the distance 224 between the second-most-distal vibration antinode 218 and the distal tip 214.
  • In one construction of the first expression of the first embodiment of FIGS. 1-2, the ultrasonic-surgical-blade body 12 consists essentially of titanium. In other constructions, blade bodies consist essentially of aluminum, a ceramic, sapphire, or any other material that transmits ultrasound in an efficient manner. Mathematical analysis of various titanium blade designs using the described principles of the invention calling for locating the gain step 20 substantially away from the most-distal vibration node 16 in the direction of the distal tip 14 achieved increases in the active length of the ultrasonic surgical blade 10 up to 40%. Applicants have seen increases up to 60% in theory. As previously mentioned, the active length of an ultrasonic surgical blade 10 is defined as the distance from the distal tip 14 to where the vibration amplitude (i.e., the longitudinal vibration amplitude) has fallen to 50% of the tip amplitude. The blade is not considered useful beyond its active length. The active length is about 15 mm for a straight cylindrical titanium rod at a resonant frequency of about 55.5 kHz without applying the principles of the invention. An increase in active length up to about 5 mm can be expected using the described principles of the invention when the gain step 20 is disposed between the most-distal vibration node 16 and the distal tip 14.
  • In one arrangement, the ultrasonic surgical blade 10 is used alone as the end effector of an ultrasonic surgical instrument. In another arrangement, the ultrasonic surgical blade 10 is used with a clamp arm (not shown) to create a shears end effector of an ultrasonic surgical instrument for cutting and/or coagulating patient tissue.
  • A second expression of the first embodiment of FIGS. 1-2 is for an ultrasonic surgical instrument 46 including a handpiece 48, an ultrasonic transmission rod 50, and an ultrasonic surgical blade 10. The handpiece 48 includes an ultrasonic transducer 52. The ultrasonic transmission rod 50 has a proximal end and a distal end, wherein the proximal end is operatively connected to the ultrasonic transducer 52. The ultrasonic surgical blade 10 is activated by the distal end and includes an ultrasonic-surgical-blade body 12. The ultrasonic-surgical-blade body 12 has a distal tip 14 which is a most-distal vibration antinode, has a most-distal vibration node 16, has a second-most-distal vibration antinode 18, and has a gain step 20. The gain step 20 is disposed between the second-most-distal vibration antinode 18 and the distal tip 14 and is spaced apart from the most-distal vibration node 16 by a gain-step distance 22 greater than 5% of the distance 24 between the second-most-distal vibration antinode 18 and the distal tip 14.
  • In one enablement of the second expression of the first embodiment of FIGS. 1-2, there is also included an ultrasonic generator 54, activated by a foot pedal 56, and a cable 58 operatively connecting the ultrasonic generator 54 and the ultrasonic transducer 52 of the handpiece 48. In one construction, the ultrasonic surgical blade 10 is a monolithic portion of the ultrasonic transmission rod 50. In another construction, the ultrasonic surgical blade is a separate piece and is attached to the ultrasonic transmission rod. It is noted that the embodiments, implementations, examples, illustrations, etc. previously described for the ultrasonic surgical blade are equally applicable to the ultrasonic surgical instrument.
  • A third expression of the first embodiment of FIGS. 1-2 is for an ultrasonic surgical blade including an ultrasonic-surgical-blade body having, in any half wave length of the ultrasonic-surgical-blade body, a first vibration antinode, a vibration node, a second vibration antinode, and a gain step, wherein the gain step is disposed between the second vibration antinode and the first vibration antinode, and wherein the gain step is spaced apart from the vibration node by a gain-step distance greater than 5% of the distance between the second vibration antinode and the first vibration antinode. It is noted that the third expression does not limit the location of the half wave to the last half wave length of the blade body as with the previously presented second expression, and that apart from the second expression's location of the half wave, the embodiments, implementations, examples, illustrations, etc. previously described for the second expression are equally applicable to the third expression.
  • Several benefits and advantages are obtained from one or more of the expressions of the embodiment of the invention. Applicants found that locating a gain step having a gain greater than unity (i.e., an amplification step) further than conventionally taught from the most-distal vibration node toward the distal tip further increased the active length of the ultrasonic surgical blade even though the vibration amplitude gain was less than when conventionally locating the gain step closer to the most-distal vibration node. Applicants determined that locating the gain step further than conventionally taught from the most-distal vibration node toward the second-most-distal vibration antinode should shorten the half wave length of the ultrasonic surgical blade. Applicants also determined that such changes in active and half wave lengths of the ultrasonic surgical blade would also result from gain steps having gains less than unity (i.e., a deamplification step) but with a deamplification step causing a decrease in active length where an identically located amplification step would cause an increase in active length and with a deamplification step causing an increase in active length where an identically located amplification step would cause a decrease in active length. Being able to lengthen or shorten the active length of an ultrasonic surgical blade offers advantages for particular surgical applications, as can be appreciated by those skilled in the art.
  • The foregoing description of several expressions and embodiments of the invention has been presented for purposes of illustration. It is not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. For example, as would be apparent to those skilled in the art, the disclosures herein of the ultrasonic surgical blade and ultrasonic surgical instrument have equal application in robotic assisted surgery taking into account the obvious modifications of such systems, components and methods to be compatible with such a robotic system.

Claims (13)

1. An ultrasonic surgical blade comprising an ultrasonic-surgical-blade body having a longitudinal axis, having a distal tip which is a most-distal vibration antinode, having a most-distal vibration node, having a second-most-distal vibration antinode, and having a gain step, wherein the longitudinal axis consists essentially of a first geometric solid having a substantially constant first transverse cross-sectional area from the gain step to the distal tip and a second geometric solid having a substantially constant second transverse cross-sectional area from the gain step to the second-most-distal vibration antinode wherein at least one of the first and second transverse cross-sectional areas surrounds a void.
2. The ultrasonic surgical blade of claim 1, wherein the second transverse cross-sectional area is different than the first transverse cross-sectional area.
3. The ultrasonic surgical blade of claim 1, wherein the void includes a first longitudinal hole which is disposed in the first geometric solid and which extends proximally from the distal tip.
4. The ultrasonic surgical blade of claim 3, wherein the void includes a second longitudinal hole which is disposed in the second geometric solid and which is in fluid communication with the first longitudinal hole, and wherein the first and second longitudinal holes are adapted for irrigation and/or suction.
5. The ultrasonic surgical blade of claim 3, also including a membrane, which covers the first longitudinal hole, and which is removably or permanently attached to the first geometric solid at the distal tip.
6. The ultrasonic surgical blade of claim 1, wherein the first geometric solid has a first mass, extends from the gain step to the distal tip, and has a non-constant first transverse cross-sectional area, wherein the second geometric solid has a second mass, extends from the gain step to the second-most-distal vibration antinode, and has a non-constant second transverse cross-sectional area, and wherein the second mass is different than the first mass.
7. The ultrasonic surgical blade of claim 6, wherein the shape and size of the first external perimeter of the first transverse cross-sectional area is substantially equal to the shape and size of the second external perimeter of the second transverse cross-sectional area.
8. The ultrasonic surgical blade of claim 7, wherein at least one of the first and second transverse cross-sectional areas surrounds a void.
9. The ultrasonic surgical blade of claim 8, wherein the void includes a first longitudinal hole which is disposed in the first geometric solid and which extends proximally from the distal tip.
10. The ultrasonic surgical blade of claim 9, wherein the void includes a second longitudinal hole which is disposed in the second geometric solid and which is in fluid communication with the first longitudinal hole, and wherein the first and second longitudinal holes are adapted for irrigation and/or suction.
11. The ultrasonic surgical blade of claim 9, also including a membrane, which covers the first longitudinal hole, and which is removably or permanently attached to the first geometric solid at the distal tip.
12. The ultrasonic surgical blade of claim 1, wherein the ultrasonic-surgical-blade body has a longitudinal axis, has an active length, and is substantially asymmetric about the longitudinal axis along at least a portion of the active length.
13. The ultrasonic surgical blade of claim 12, wherein the ultrasonic-surgical-blade body is curved.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8623040B2 (en) 2009-07-01 2014-01-07 Alcon Research, Ltd. Phacoemulsification hook tip
US10258505B2 (en) 2010-09-17 2019-04-16 Alcon Research, Ltd. Balanced phacoemulsification tip
CN110575228A (en) * 2019-09-25 2019-12-17 哈尔滨优脉雷声科技有限责任公司 Cutter bar structure of ultrasonic scalpel and ultrasonic scalpel
USD974558S1 (en) 2020-12-18 2023-01-03 Stryker European Operations Limited Ultrasonic knife

Families Citing this family (205)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11229472B2 (en) 2001-06-12 2022-01-25 Cilag Gmbh International Modular battery powered handheld surgical instrument with multiple magnetic position sensors
US8182501B2 (en) 2004-02-27 2012-05-22 Ethicon Endo-Surgery, Inc. Ultrasonic surgical shears and method for sealing a blood vessel using same
BRPI0518171B8 (en) 2004-10-08 2021-06-22 Ethicon Endo Surgery Inc ultrasonic forceps coagulator apparatus
JP5266514B2 (en) * 2005-03-29 2013-08-21 コニカミノルタ株式会社 Organic electroluminescence device
US20070191713A1 (en) 2005-10-14 2007-08-16 Eichmann Stephen E Ultrasonic device for cutting and coagulating
US8152825B2 (en) 2005-10-14 2012-04-10 Ethicon Endo-Surgery, Inc. Medical ultrasound system and handpiece and methods for making and tuning
US20070167965A1 (en) * 2006-01-05 2007-07-19 Ethicon Endo-Surgery, Inc. Ultrasonic medical instrument
US7621930B2 (en) 2006-01-20 2009-11-24 Ethicon Endo-Surgery, Inc. Ultrasound medical instrument having a medical ultrasonic blade
US20070173872A1 (en) * 2006-01-23 2007-07-26 Ethicon Endo-Surgery, Inc. Surgical instrument for cutting and coagulating patient tissue
US20070191712A1 (en) * 2006-02-15 2007-08-16 Ethicon Endo-Surgery, Inc. Method for sealing a blood vessel, a medical system and a medical instrument
US7854735B2 (en) * 2006-02-16 2010-12-21 Ethicon Endo-Surgery, Inc. Energy-based medical treatment system and method
WO2007137000A2 (en) * 2006-05-16 2007-11-29 The Arizona Board Of Regents On Behalf Of The University Of Arizona Combination cancer chemotherapy
US20070282333A1 (en) * 2006-06-01 2007-12-06 Fortson Reginald D Ultrasonic waveguide and blade
AU2012200268B8 (en) * 2006-06-01 2015-02-12 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instrument
US20080234709A1 (en) * 2007-03-22 2008-09-25 Houser Kevin L Ultrasonic surgical instrument and cartilage and bone shaping blades therefor
US8226675B2 (en) 2007-03-22 2012-07-24 Ethicon Endo-Surgery, Inc. Surgical instruments
US8057498B2 (en) 2007-11-30 2011-11-15 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instrument blades
US8142461B2 (en) 2007-03-22 2012-03-27 Ethicon Endo-Surgery, Inc. Surgical instruments
US8911460B2 (en) 2007-03-22 2014-12-16 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instruments
US9271751B2 (en) 2007-05-29 2016-03-01 Ethicon Endo-Surgery, Llc Ultrasonic surgical system
US8808319B2 (en) 2007-07-27 2014-08-19 Ethicon Endo-Surgery, Inc. Surgical instruments
US8523889B2 (en) 2007-07-27 2013-09-03 Ethicon Endo-Surgery, Inc. Ultrasonic end effectors with increased active length
US8882791B2 (en) * 2007-07-27 2014-11-11 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instruments
US8257377B2 (en) * 2007-07-27 2012-09-04 Ethicon Endo-Surgery, Inc. Multiple end effectors ultrasonic surgical instruments
US8348967B2 (en) * 2007-07-27 2013-01-08 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instruments
US8430898B2 (en) 2007-07-31 2013-04-30 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instruments
US8512365B2 (en) 2007-07-31 2013-08-20 Ethicon Endo-Surgery, Inc. Surgical instruments
US9044261B2 (en) 2007-07-31 2015-06-02 Ethicon Endo-Surgery, Inc. Temperature controlled ultrasonic surgical instruments
US8252012B2 (en) 2007-07-31 2012-08-28 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instrument with modulator
USD594983S1 (en) 2007-10-05 2009-06-23 Ethicon Endo-Surgery, Inc. Handle assembly for surgical instrument
EP2796102B1 (en) 2007-10-05 2018-03-14 Ethicon LLC Ergonomic surgical instruments
EP2242434A1 (en) 2007-10-10 2010-10-27 Ethicon Endo-Surgery, Inc. Ultrasonic device for cutting and coagulating
US10010339B2 (en) 2007-11-30 2018-07-03 Ethicon Llc Ultrasonic surgical blades
US7901423B2 (en) 2007-11-30 2011-03-08 Ethicon Endo-Surgery, Inc. Folded ultrasonic end effectors with increased active length
US9017355B2 (en) 2007-12-03 2015-04-28 Covidien Ag Battery-powered hand-held ultrasonic surgical cautery cutting device
US20090143799A1 (en) * 2007-12-03 2009-06-04 Smith Kevin W Cordless Hand-Held Ultrasonic Cautery Cutting Device
US8334468B2 (en) * 2008-11-06 2012-12-18 Covidien Ag Method of switching a cordless hand-held ultrasonic cautery cutting device
US8061014B2 (en) 2007-12-03 2011-11-22 Covidien Ag Method of assembling a cordless hand-held ultrasonic cautery cutting device
US8425545B2 (en) * 2007-12-03 2013-04-23 Covidien Ag Cordless hand-held ultrasonic cautery cutting device and method
US8663262B2 (en) 2007-12-03 2014-03-04 Covidien Ag Battery assembly for battery-powered surgical instruments
US9314261B2 (en) 2007-12-03 2016-04-19 Covidien Ag Battery-powered hand-held ultrasonic surgical cautery cutting device
US9107690B2 (en) 2007-12-03 2015-08-18 Covidien Ag Battery-powered hand-held ultrasonic surgical cautery cutting device
ES2442241T3 (en) * 2008-03-31 2014-02-10 Applied Medical Resources Corporation Electrosurgical system with a switching mechanism
US8058771B2 (en) 2008-08-06 2011-11-15 Ethicon Endo-Surgery, Inc. Ultrasonic device for cutting and coagulating with stepped output
US9089360B2 (en) 2008-08-06 2015-07-28 Ethicon Endo-Surgery, Inc. Devices and techniques for cutting and coagulating tissue
US20100298743A1 (en) * 2009-05-20 2010-11-25 Ethicon Endo-Surgery, Inc. Thermally-activated coupling arrangements and methods for attaching tools to ultrasonic surgical instruments
US9700339B2 (en) * 2009-05-20 2017-07-11 Ethicon Endo-Surgery, Inc. Coupling arrangements and methods for attaching tools to ultrasonic surgical instruments
US20100312186A1 (en) * 2009-06-09 2010-12-09 Vascular Technology Inc. Soft tissue dissector
US8334635B2 (en) 2009-06-24 2012-12-18 Ethicon Endo-Surgery, Inc. Transducer arrangements for ultrasonic surgical instruments
US9017326B2 (en) * 2009-07-15 2015-04-28 Ethicon Endo-Surgery, Inc. Impedance monitoring apparatus, system, and method for ultrasonic surgical instruments
US8663220B2 (en) * 2009-07-15 2014-03-04 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instruments
US8461744B2 (en) * 2009-07-15 2013-06-11 Ethicon Endo-Surgery, Inc. Rotating transducer mount for ultrasonic surgical instruments
US11090104B2 (en) 2009-10-09 2021-08-17 Cilag Gmbh International Surgical generator for ultrasonic and electrosurgical devices
US9168054B2 (en) 2009-10-09 2015-10-27 Ethicon Endo-Surgery, Inc. Surgical generator for ultrasonic and electrosurgical devices
US10172669B2 (en) 2009-10-09 2019-01-08 Ethicon Llc Surgical instrument comprising an energy trigger lockout
US10441345B2 (en) 2009-10-09 2019-10-15 Ethicon Llc Surgical generator for ultrasonic and electrosurgical devices
USRE47996E1 (en) 2009-10-09 2020-05-19 Ethicon Llc Surgical generator for ultrasonic and electrosurgical devices
US8986302B2 (en) 2009-10-09 2015-03-24 Ethicon Endo-Surgery, Inc. Surgical generator for ultrasonic and electrosurgical devices
US8323302B2 (en) * 2010-02-11 2012-12-04 Ethicon Endo-Surgery, Inc. Methods of using ultrasonically powered surgical instruments with rotatable cutting implements
US8419759B2 (en) * 2010-02-11 2013-04-16 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instrument with comb-like tissue trimming device
US8579928B2 (en) 2010-02-11 2013-11-12 Ethicon Endo-Surgery, Inc. Outer sheath and blade arrangements for ultrasonic surgical instruments
US8951272B2 (en) 2010-02-11 2015-02-10 Ethicon Endo-Surgery, Inc. Seal arrangements for ultrasonically powered surgical instruments
US8486096B2 (en) * 2010-02-11 2013-07-16 Ethicon Endo-Surgery, Inc. Dual purpose surgical instrument for cutting and coagulating tissue
US8469981B2 (en) 2010-02-11 2013-06-25 Ethicon Endo-Surgery, Inc. Rotatable cutting implement arrangements for ultrasonic surgical instruments
US9259234B2 (en) 2010-02-11 2016-02-16 Ethicon Endo-Surgery, Llc Ultrasonic surgical instruments with rotatable blade and hollow sheath arrangements
US8961547B2 (en) * 2010-02-11 2015-02-24 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instruments with moving cutting implement
US8531064B2 (en) 2010-02-11 2013-09-10 Ethicon Endo-Surgery, Inc. Ultrasonically powered surgical instruments with rotating cutting implement
US8382782B2 (en) * 2010-02-11 2013-02-26 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instruments with partially rotating blade and fixed pad arrangement
TWI407934B (en) * 2010-03-09 2013-09-11 Jung Tung Liu An ultrasound assisted system with two sets of detection units and a method of using the system to simulate a procedure
GB2480498A (en) 2010-05-21 2011-11-23 Ethicon Endo Surgery Inc Medical device comprising RF circuitry
US8795327B2 (en) 2010-07-22 2014-08-05 Ethicon Endo-Surgery, Inc. Electrosurgical instrument with separate closure and cutting members
US9192431B2 (en) 2010-07-23 2015-11-24 Ethicon Endo-Surgery, Inc. Electrosurgical cutting and sealing instrument
US8888809B2 (en) 2010-10-01 2014-11-18 Ethicon Endo-Surgery, Inc. Surgical instrument with jaw member
US8979890B2 (en) 2010-10-01 2015-03-17 Ethicon Endo-Surgery, Inc. Surgical instrument with jaw member
ES2664081T3 (en) 2010-10-01 2018-04-18 Applied Medical Resources Corporation Electrosurgical system with a radio frequency amplifier and with means for adapting to the separation between electrodes
KR101171222B1 (en) 2011-02-15 2012-08-06 김송이 Amputator to cut the site of surgery using ultrasonic waves and surgical instrument therewith
US8968293B2 (en) 2011-04-12 2015-03-03 Covidien Lp Systems and methods for calibrating power measurements in an electrosurgical generator
US9259265B2 (en) 2011-07-22 2016-02-16 Ethicon Endo-Surgery, Llc Surgical instruments for tensioning tissue
USD700967S1 (en) 2011-08-23 2014-03-11 Covidien Ag Handle for portable surgical device
US9333025B2 (en) 2011-10-24 2016-05-10 Ethicon Endo-Surgery, Llc Battery initialization clip
USD687549S1 (en) 2011-10-24 2013-08-06 Ethicon Endo-Surgery, Inc. Surgical instrument
EP2811932B1 (en) 2012-02-10 2019-06-26 Ethicon LLC Robotically controlled surgical instrument
WO2013122274A1 (en) * 2012-02-16 2013-08-22 이메드 주식회사 Tool for surgical operation using ultrasonic waves
US9226766B2 (en) 2012-04-09 2016-01-05 Ethicon Endo-Surgery, Inc. Serial communication protocol for medical device
US9724118B2 (en) 2012-04-09 2017-08-08 Ethicon Endo-Surgery, Llc Techniques for cutting and coagulating tissue for ultrasonic surgical instruments
US9241731B2 (en) 2012-04-09 2016-01-26 Ethicon Endo-Surgery, Inc. Rotatable electrical connection for ultrasonic surgical instruments
US9237921B2 (en) 2012-04-09 2016-01-19 Ethicon Endo-Surgery, Inc. Devices and techniques for cutting and coagulating tissue
US9439668B2 (en) 2012-04-09 2016-09-13 Ethicon Endo-Surgery, Llc Switch arrangements for ultrasonic surgical instruments
US20140005705A1 (en) 2012-06-29 2014-01-02 Ethicon Endo-Surgery, Inc. Surgical instruments with articulating shafts
US9408622B2 (en) 2012-06-29 2016-08-09 Ethicon Endo-Surgery, Llc Surgical instruments with articulating shafts
US9393037B2 (en) 2012-06-29 2016-07-19 Ethicon Endo-Surgery, Llc Surgical instruments with articulating shafts
US9198714B2 (en) 2012-06-29 2015-12-01 Ethicon Endo-Surgery, Inc. Haptic feedback devices for surgical robot
US9226767B2 (en) 2012-06-29 2016-01-05 Ethicon Endo-Surgery, Inc. Closed feedback control for electrosurgical device
US9820768B2 (en) 2012-06-29 2017-11-21 Ethicon Llc Ultrasonic surgical instruments with control mechanisms
US9283045B2 (en) 2012-06-29 2016-03-15 Ethicon Endo-Surgery, Llc Surgical instruments with fluid management system
US9351754B2 (en) 2012-06-29 2016-05-31 Ethicon Endo-Surgery, Llc Ultrasonic surgical instruments with distally positioned jaw assemblies
US9326788B2 (en) 2012-06-29 2016-05-03 Ethicon Endo-Surgery, Llc Lockout mechanism for use with robotic electrosurgical device
US20140005702A1 (en) 2012-06-29 2014-01-02 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instruments with distally positioned transducers
US9492224B2 (en) 2012-09-28 2016-11-15 EthiconEndo-Surgery, LLC Multi-function bi-polar forceps
US9095367B2 (en) 2012-10-22 2015-08-04 Ethicon Endo-Surgery, Inc. Flexible harmonic waveguides/blades for surgical instruments
US10201365B2 (en) 2012-10-22 2019-02-12 Ethicon Llc Surgeon feedback sensing and display methods
US20140135804A1 (en) 2012-11-15 2014-05-15 Ethicon Endo-Surgery, Inc. Ultrasonic and electrosurgical devices
US10226273B2 (en) 2013-03-14 2019-03-12 Ethicon Llc Mechanical fasteners for use with surgical energy devices
US9241728B2 (en) 2013-03-15 2016-01-26 Ethicon Endo-Surgery, Inc. Surgical instrument with multiple clamping mechanisms
US20150196782A1 (en) * 2013-05-23 2015-07-16 Olympus Medical Systems Corp. Ultrasonic probe and ultrasonic treatment device
US9814514B2 (en) 2013-09-13 2017-11-14 Ethicon Llc Electrosurgical (RF) medical instruments for cutting and coagulating tissue
US9265926B2 (en) 2013-11-08 2016-02-23 Ethicon Endo-Surgery, Llc Electrosurgical devices
GB2521228A (en) 2013-12-16 2015-06-17 Ethicon Endo Surgery Inc Medical device
GB2521229A (en) 2013-12-16 2015-06-17 Ethicon Endo Surgery Inc Medical device
US9795436B2 (en) 2014-01-07 2017-10-24 Ethicon Llc Harvesting energy from a surgical generator
US9554854B2 (en) 2014-03-18 2017-01-31 Ethicon Endo-Surgery, Llc Detecting short circuits in electrosurgical medical devices
US10463421B2 (en) 2014-03-27 2019-11-05 Ethicon Llc Two stage trigger, clamp and cut bipolar vessel sealer
US10092310B2 (en) 2014-03-27 2018-10-09 Ethicon Llc Electrosurgical devices
US9737355B2 (en) 2014-03-31 2017-08-22 Ethicon Llc Controlling impedance rise in electrosurgical medical devices
US9913680B2 (en) 2014-04-15 2018-03-13 Ethicon Llc Software algorithms for electrosurgical instruments
KR102537276B1 (en) 2014-05-16 2023-05-26 어플라이드 메디컬 리소시스 코포레이션 Electrosurgical system
AU2015266619B2 (en) 2014-05-30 2020-02-06 Applied Medical Resources Corporation Electrosurgical instrument for fusing and cutting tissue and an electrosurgical generator
US9700333B2 (en) 2014-06-30 2017-07-11 Ethicon Llc Surgical instrument with variable tissue compression
US10285724B2 (en) 2014-07-31 2019-05-14 Ethicon Llc Actuation mechanisms and load adjustment assemblies for surgical instruments
US10639092B2 (en) 2014-12-08 2020-05-05 Ethicon Llc Electrode configurations for surgical instruments
US10159524B2 (en) 2014-12-22 2018-12-25 Ethicon Llc High power battery powered RF amplifier topology
US10420603B2 (en) 2014-12-23 2019-09-24 Applied Medical Resources Corporation Bipolar electrosurgical sealer and divider
USD748259S1 (en) 2014-12-29 2016-01-26 Applied Medical Resources Corporation Electrosurgical instrument
US10245095B2 (en) 2015-02-06 2019-04-02 Ethicon Llc Electrosurgical instrument with rotation and articulation mechanisms
US10342602B2 (en) 2015-03-17 2019-07-09 Ethicon Llc Managing tissue treatment
US10321950B2 (en) 2015-03-17 2019-06-18 Ethicon Llc Managing tissue treatment
US10595929B2 (en) 2015-03-24 2020-03-24 Ethicon Llc Surgical instruments with firing system overload protection mechanisms
US10314638B2 (en) 2015-04-07 2019-06-11 Ethicon Llc Articulating radio frequency (RF) tissue seal with articulating state sensing
US10034684B2 (en) 2015-06-15 2018-07-31 Ethicon Llc Apparatus and method for dissecting and coagulating tissue
US11020140B2 (en) 2015-06-17 2021-06-01 Cilag Gmbh International Ultrasonic surgical blade for use with ultrasonic surgical instruments
US11051873B2 (en) 2015-06-30 2021-07-06 Cilag Gmbh International Surgical system with user adaptable techniques employing multiple energy modalities based on tissue parameters
US10034704B2 (en) 2015-06-30 2018-07-31 Ethicon Llc Surgical instrument with user adaptable algorithms
US10357303B2 (en) 2015-06-30 2019-07-23 Ethicon Llc Translatable outer tube for sealing using shielded lap chole dissector
US10898256B2 (en) 2015-06-30 2021-01-26 Ethicon Llc Surgical system with user adaptable techniques based on tissue impedance
US11129669B2 (en) 2015-06-30 2021-09-28 Cilag Gmbh International Surgical system with user adaptable techniques based on tissue type
US11141213B2 (en) 2015-06-30 2021-10-12 Cilag Gmbh International Surgical instrument with user adaptable techniques
US10154852B2 (en) 2015-07-01 2018-12-18 Ethicon Llc Ultrasonic surgical blade with improved cutting and coagulation features
US10751108B2 (en) 2015-09-30 2020-08-25 Ethicon Llc Protection techniques for generator for digitally generating electrosurgical and ultrasonic electrical signal waveforms
US10959771B2 (en) 2015-10-16 2021-03-30 Ethicon Llc Suction and irrigation sealing grasper
US10595930B2 (en) 2015-10-16 2020-03-24 Ethicon Llc Electrode wiping surgical device
US10314607B2 (en) * 2015-12-21 2019-06-11 Ethicon Llc Ultrasonic surgical instrument with tubular acoustic waveguide segment
US10179022B2 (en) 2015-12-30 2019-01-15 Ethicon Llc Jaw position impedance limiter for electrosurgical instrument
US10959806B2 (en) 2015-12-30 2021-03-30 Ethicon Llc Energized medical device with reusable handle
US10575892B2 (en) 2015-12-31 2020-03-03 Ethicon Llc Adapter for electrical surgical instruments
US11129670B2 (en) 2016-01-15 2021-09-28 Cilag Gmbh International Modular battery powered handheld surgical instrument with selective application of energy based on button displacement, intensity, or local tissue characterization
US10537351B2 (en) 2016-01-15 2020-01-21 Ethicon Llc Modular battery powered handheld surgical instrument with variable motor control limits
US10716615B2 (en) 2016-01-15 2020-07-21 Ethicon Llc Modular battery powered handheld surgical instrument with curved end effectors having asymmetric engagement between jaw and blade
US11229471B2 (en) 2016-01-15 2022-01-25 Cilag Gmbh International Modular battery powered handheld surgical instrument with selective application of energy based on tissue characterization
US10555769B2 (en) 2016-02-22 2020-02-11 Ethicon Llc Flexible circuits for electrosurgical instrument
US10702329B2 (en) 2016-04-29 2020-07-07 Ethicon Llc Jaw structure with distal post for electrosurgical instruments
US10856934B2 (en) 2016-04-29 2020-12-08 Ethicon Llc Electrosurgical instrument with electrically conductive gap setting and tissue engaging members
US10987156B2 (en) 2016-04-29 2021-04-27 Ethicon Llc Electrosurgical instrument with electrically conductive gap setting member and electrically insulative tissue engaging members
US10646269B2 (en) 2016-04-29 2020-05-12 Ethicon Llc Non-linear jaw gap for electrosurgical instruments
US10485607B2 (en) 2016-04-29 2019-11-26 Ethicon Llc Jaw structure with distal closure for electrosurgical instruments
US10456193B2 (en) 2016-05-03 2019-10-29 Ethicon Llc Medical device with a bilateral jaw configuration for nerve stimulation
US10368898B2 (en) 2016-05-05 2019-08-06 Covidien Lp Ultrasonic surgical instrument
CN105962996B (en) 2016-07-11 2019-05-10 上海逸思医疗科技有限公司 A kind of ultrasonic surgical blade waveguide rod
US10245064B2 (en) 2016-07-12 2019-04-02 Ethicon Llc Ultrasonic surgical instrument with piezoelectric central lumen transducer
US10893883B2 (en) 2016-07-13 2021-01-19 Ethicon Llc Ultrasonic assembly for use with ultrasonic surgical instruments
US10842522B2 (en) 2016-07-15 2020-11-24 Ethicon Llc Ultrasonic surgical instruments having offset blades
US10376305B2 (en) 2016-08-05 2019-08-13 Ethicon Llc Methods and systems for advanced harmonic energy
US10285723B2 (en) 2016-08-09 2019-05-14 Ethicon Llc Ultrasonic surgical blade with improved heel portion
USD847990S1 (en) 2016-08-16 2019-05-07 Ethicon Llc Surgical instrument
US10952759B2 (en) 2016-08-25 2021-03-23 Ethicon Llc Tissue loading of a surgical instrument
US10828056B2 (en) 2016-08-25 2020-11-10 Ethicon Llc Ultrasonic transducer to waveguide acoustic coupling, connections, and configurations
US10751117B2 (en) 2016-09-23 2020-08-25 Ethicon Llc Electrosurgical instrument with fluid diverter
US10603064B2 (en) 2016-11-28 2020-03-31 Ethicon Llc Ultrasonic transducer
US11266430B2 (en) 2016-11-29 2022-03-08 Cilag Gmbh International End effector control and calibration
US11033325B2 (en) 2017-02-16 2021-06-15 Cilag Gmbh International Electrosurgical instrument with telescoping suction port and debris cleaner
US10799284B2 (en) 2017-03-15 2020-10-13 Ethicon Llc Electrosurgical instrument with textured jaws
US11497546B2 (en) 2017-03-31 2022-11-15 Cilag Gmbh International Area ratios of patterned coatings on RF electrodes to reduce sticking
US10571435B2 (en) 2017-06-08 2020-02-25 Covidien Lp Systems and methods for digital control of ultrasonic devices
US10603117B2 (en) 2017-06-28 2020-03-31 Ethicon Llc Articulation state detection mechanisms
US10820920B2 (en) 2017-07-05 2020-11-03 Ethicon Llc Reusable ultrasonic medical devices and methods of their use
US11484358B2 (en) 2017-09-29 2022-11-01 Cilag Gmbh International Flexible electrosurgical instrument
US11033323B2 (en) 2017-09-29 2021-06-15 Cilag Gmbh International Systems and methods for managing fluid and suction in electrosurgical systems
US11490951B2 (en) 2017-09-29 2022-11-08 Cilag Gmbh International Saline contact with electrodes
US11259832B2 (en) 2018-01-29 2022-03-01 Covidien Lp Ultrasonic horn for an ultrasonic surgical instrument, ultrasonic surgical instrument including the same, and method of manufacturing an ultrasonic horn
US11246621B2 (en) 2018-01-29 2022-02-15 Covidien Lp Ultrasonic transducers and ultrasonic surgical instruments including the same
US11246617B2 (en) 2018-01-29 2022-02-15 Covidien Lp Compact ultrasonic transducer and ultrasonic surgical instrument including the same
US11229449B2 (en) 2018-02-05 2022-01-25 Covidien Lp Ultrasonic horn, ultrasonic transducer assembly, and ultrasonic surgical instrument including the same
AU2019217566A1 (en) * 2018-02-08 2020-09-10 Woodwelding Ag System of sonotrode and guide shaft
US10582944B2 (en) 2018-02-23 2020-03-10 Covidien Lp Ultrasonic surgical instrument with torque assist feature
JP2021536299A (en) 2018-09-05 2021-12-27 アプライド メディカル リソーシーズ コーポレイション Electrosurgery generator control system
CA3120182A1 (en) 2018-11-16 2020-05-22 Applied Medical Resources Corporation Electrosurgical system
US11478268B2 (en) 2019-08-16 2022-10-25 Covidien Lp Jaw members for surgical instruments and surgical instruments incorporating the same
US11666357B2 (en) 2019-09-16 2023-06-06 Covidien Lp Enclosure for electronics of a surgical instrument
CN110633543B (en) * 2019-09-25 2023-01-13 哈尔滨优脉雷声科技有限责任公司 Ultrasonic knife bar structure determination method based on sound ray transmission theory and knife bar structure
CN110575230B (en) * 2019-09-25 2021-04-09 哈尔滨优脉雷声科技有限责任公司 Cutter bar structure and ultrasonic scalpel comprising same
WO2021067302A1 (en) * 2019-09-30 2021-04-08 Gyrus Acmi, Inc. D/B/A Olympus Surgical Technologies America Ultrasonic probe
JP2022550177A (en) * 2019-09-30 2022-11-30 ジャイラス エーシーエムアイ インク ディー/ビー/エー オリンパス サージカル テクノロジーズ アメリカ ultrasonic probe
US11696776B2 (en) 2019-12-30 2023-07-11 Cilag Gmbh International Articulatable surgical instrument
US11911063B2 (en) 2019-12-30 2024-02-27 Cilag Gmbh International Techniques for detecting ultrasonic blade to electrode contact and reducing power to ultrasonic blade
US11723716B2 (en) 2019-12-30 2023-08-15 Cilag Gmbh International Electrosurgical instrument with variable control mechanisms
US20210196359A1 (en) 2019-12-30 2021-07-01 Ethicon Llc Electrosurgical instruments with electrodes having energy focusing features
US11452525B2 (en) 2019-12-30 2022-09-27 Cilag Gmbh International Surgical instrument comprising an adjustment system
US11779387B2 (en) 2019-12-30 2023-10-10 Cilag Gmbh International Clamp arm jaw to minimize tissue sticking and improve tissue control
US11779329B2 (en) 2019-12-30 2023-10-10 Cilag Gmbh International Surgical instrument comprising a flex circuit including a sensor system
US11759251B2 (en) 2019-12-30 2023-09-19 Cilag Gmbh International Control program adaptation based on device status and user input
US11684412B2 (en) 2019-12-30 2023-06-27 Cilag Gmbh International Surgical instrument with rotatable and articulatable surgical end effector
US11786291B2 (en) 2019-12-30 2023-10-17 Cilag Gmbh International Deflectable support of RF energy electrode with respect to opposing ultrasonic blade
US11660089B2 (en) 2019-12-30 2023-05-30 Cilag Gmbh International Surgical instrument comprising a sensing system
US11812957B2 (en) 2019-12-30 2023-11-14 Cilag Gmbh International Surgical instrument comprising a signal interference resolution system
US11617599B2 (en) 2020-10-15 2023-04-04 Covidien Lp Ultrasonic surgical instrument
US11717312B2 (en) 2021-10-01 2023-08-08 Covidien Lp Surgical system including blade visualization markings

Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526571A (en) * 1982-10-15 1985-07-02 Cooper Lasersonics, Inc. Curved ultrasonic surgical aspirator
US4816018A (en) * 1985-08-02 1989-03-28 Ultramed Corporation Ultrasonic probe tip
US5112300A (en) * 1990-04-03 1992-05-12 Alcon Surgical, Inc. Method and apparatus for controlling ultrasonic fragmentation of body tissue
US5123903A (en) * 1989-08-10 1992-06-23 Medical Products Development, Inc. Disposable aspiration sleeve for ultrasonic lipectomy
US5180363A (en) * 1989-04-27 1993-01-19 Sumitomo Bakelite Company Company Limited Operation device
US5269297A (en) * 1992-02-27 1993-12-14 Angiosonics Inc. Ultrasonic transmission apparatus
US5318570A (en) * 1989-01-31 1994-06-07 Advanced Osseous Technologies, Inc. Ultrasonic tool
US5380274A (en) * 1991-01-11 1995-01-10 Baxter International Inc. Ultrasound transmission member having improved longitudinal transmission properties
US5527273A (en) * 1994-10-06 1996-06-18 Misonix, Inc. Ultrasonic lipectomy probe and method for manufacture
US5695510A (en) * 1992-02-20 1997-12-09 Hood; Larry L. Ultrasonic knife
US5746756A (en) * 1996-06-03 1998-05-05 Ethicon Endo-Surgery, Inc. Internal ultrasonic tip amplifier
US5843109A (en) * 1996-05-29 1998-12-01 Allergan Ultrasonic handpiece with multiple piezoelectric elements and heat dissipator
US5971949A (en) * 1996-08-19 1999-10-26 Angiosonics Inc. Ultrasound transmission apparatus and method of using same
US6227853B1 (en) * 1999-02-11 2001-05-08 Edge Technologies, Inc. Magnetic coupling system and method
US6254623B1 (en) * 1999-06-30 2001-07-03 Ethicon Endo-Surgery, Inc. Ultrasonic clamp coagulator surgical instrument with improved blade geometry
US6309400B2 (en) * 1998-06-29 2001-10-30 Ethicon Endo-Surgery, Inc. Curved ultrasonic blade having a trapezoidal cross section
US6328751B1 (en) * 1998-06-29 2001-12-11 Ethicon Endo-Surgery, Inc. Balanced ultrasonic blade including a plurality of balance asymmetries
US6423082B1 (en) * 2000-03-31 2002-07-23 Ethicon Endo-Surgery, Inc. Ultrasonic surgical blade with improved cutting and coagulation features
US6432118B1 (en) * 1999-10-05 2002-08-13 Ethicon Endo-Surgery, Inc. Multifunctional curved blade for use with an ultrasonic surgical instrument
US20030135136A1 (en) * 2002-01-11 2003-07-17 Olympus Optical Co., Ltd. Ultrasonic surgical instrument
US6652547B2 (en) * 1999-10-05 2003-11-25 Omnisonics Medical Technologies, Inc. Apparatus and method of removing occlusions using ultrasonic medical device operating in a transverse mode
US6660017B2 (en) * 1998-06-29 2003-12-09 Ethicon Endo-Surgery, Inc. Balanced ultrasonic blade including a singular balance asymmetry
US6773444B2 (en) * 1999-10-05 2004-08-10 Ethicon Endo-Surgery, Inc. Blades with functional balance asymmetries for use with ultrasonic surgical instruments

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2708129B2 (en) * 1988-10-05 1998-02-04 オリンパス光学工業株式会社 Ultrasonic treatment equipment
JPH07108301B2 (en) * 1989-02-02 1995-11-22 株式会社貝印刃物開発センター Method for manufacturing skin excision tool and blade thereof
US5324299A (en) * 1992-02-03 1994-06-28 Ultracision, Inc. Ultrasonic scalpel blade and methods of application
US5669922A (en) * 1996-02-20 1997-09-23 Hood; Larry Ultrasonically driven blade with a radial hook that defines a circular recess
AU6357298A (en) * 1997-04-28 1998-10-29 Ethicon Endo-Surgery, Inc. Methods and devices for controlling the vibration of ultrasonic transmission components
WO1999044514A1 (en) * 1998-03-02 1999-09-10 Mentor Corporation Ultrasonic liposuction probe
US6379371B1 (en) * 1999-11-15 2002-04-30 Misonix, Incorporated Ultrasonic cutting blade with cooling
JP2002058679A (en) * 2000-08-22 2002-02-26 Olympus Optical Co Ltd Ultrasonic treating instrument

Patent Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526571A (en) * 1982-10-15 1985-07-02 Cooper Lasersonics, Inc. Curved ultrasonic surgical aspirator
US4816018A (en) * 1985-08-02 1989-03-28 Ultramed Corporation Ultrasonic probe tip
US5318570A (en) * 1989-01-31 1994-06-07 Advanced Osseous Technologies, Inc. Ultrasonic tool
US5180363A (en) * 1989-04-27 1993-01-19 Sumitomo Bakelite Company Company Limited Operation device
US5123903A (en) * 1989-08-10 1992-06-23 Medical Products Development, Inc. Disposable aspiration sleeve for ultrasonic lipectomy
US5112300A (en) * 1990-04-03 1992-05-12 Alcon Surgical, Inc. Method and apparatus for controlling ultrasonic fragmentation of body tissue
US5380274A (en) * 1991-01-11 1995-01-10 Baxter International Inc. Ultrasound transmission member having improved longitudinal transmission properties
US5695510A (en) * 1992-02-20 1997-12-09 Hood; Larry L. Ultrasonic knife
US5269297A (en) * 1992-02-27 1993-12-14 Angiosonics Inc. Ultrasonic transmission apparatus
US5527273A (en) * 1994-10-06 1996-06-18 Misonix, Inc. Ultrasonic lipectomy probe and method for manufacture
US5843109A (en) * 1996-05-29 1998-12-01 Allergan Ultrasonic handpiece with multiple piezoelectric elements and heat dissipator
US5879364A (en) * 1996-06-03 1999-03-09 Ethicon Endo-Surgery, Inc. Internal ultrasonic tip amplifier
US5746756A (en) * 1996-06-03 1998-05-05 Ethicon Endo-Surgery, Inc. Internal ultrasonic tip amplifier
US5971949A (en) * 1996-08-19 1999-10-26 Angiosonics Inc. Ultrasound transmission apparatus and method of using same
US6309400B2 (en) * 1998-06-29 2001-10-30 Ethicon Endo-Surgery, Inc. Curved ultrasonic blade having a trapezoidal cross section
US6328751B1 (en) * 1998-06-29 2001-12-11 Ethicon Endo-Surgery, Inc. Balanced ultrasonic blade including a plurality of balance asymmetries
US6660017B2 (en) * 1998-06-29 2003-12-09 Ethicon Endo-Surgery, Inc. Balanced ultrasonic blade including a singular balance asymmetry
US6227853B1 (en) * 1999-02-11 2001-05-08 Edge Technologies, Inc. Magnetic coupling system and method
US6254623B1 (en) * 1999-06-30 2001-07-03 Ethicon Endo-Surgery, Inc. Ultrasonic clamp coagulator surgical instrument with improved blade geometry
US6432118B1 (en) * 1999-10-05 2002-08-13 Ethicon Endo-Surgery, Inc. Multifunctional curved blade for use with an ultrasonic surgical instrument
US6652547B2 (en) * 1999-10-05 2003-11-25 Omnisonics Medical Technologies, Inc. Apparatus and method of removing occlusions using ultrasonic medical device operating in a transverse mode
US6773444B2 (en) * 1999-10-05 2004-08-10 Ethicon Endo-Surgery, Inc. Blades with functional balance asymmetries for use with ultrasonic surgical instruments
US6423082B1 (en) * 2000-03-31 2002-07-23 Ethicon Endo-Surgery, Inc. Ultrasonic surgical blade with improved cutting and coagulation features
US20030135136A1 (en) * 2002-01-11 2003-07-17 Olympus Optical Co., Ltd. Ultrasonic surgical instrument

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8623040B2 (en) 2009-07-01 2014-01-07 Alcon Research, Ltd. Phacoemulsification hook tip
US9233021B2 (en) 2009-07-01 2016-01-12 Alcon Research, Ltd. Phacoemulsification hook tip
US10258505B2 (en) 2010-09-17 2019-04-16 Alcon Research, Ltd. Balanced phacoemulsification tip
CN110575228A (en) * 2019-09-25 2019-12-17 哈尔滨优脉雷声科技有限责任公司 Cutter bar structure of ultrasonic scalpel and ultrasonic scalpel
USD974558S1 (en) 2020-12-18 2023-01-03 Stryker European Operations Limited Ultrasonic knife

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BRPI0415712B1 (en) 2015-12-08
BRPI0415712A (en) 2006-12-19
KR20070009535A (en) 2007-01-18
CA2544817A1 (en) 2005-05-26
NZ546982A (en) 2009-11-27
KR100821500B1 (en) 2008-04-14
MXPA06005161A (en) 2006-12-15
BRPI0415712B8 (en) 2021-06-22
ES2361745T3 (en) 2011-06-21
AU2004289263B2 (en) 2010-09-02
CN1889890A (en) 2007-01-03
US7163548B2 (en) 2007-01-16
CN100420424C (en) 2008-09-24
WO2005046737A2 (en) 2005-05-26
ATE499888T1 (en) 2011-03-15
HK1101768A1 (en) 2007-10-26
US20050096679A1 (en) 2005-05-05
EP1684648A4 (en) 2008-12-10
EP1684648A2 (en) 2006-08-02
DE602004031655D1 (en) 2011-04-14
JP4869941B2 (en) 2012-02-08
EP1684648B1 (en) 2011-03-02
CA2544817C (en) 2010-01-05
JP2007510507A (en) 2007-04-26
EP1684648B8 (en) 2011-04-27
WO2005046737A3 (en) 2006-01-26
AU2004289263A1 (en) 2005-05-26

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