US20150164581A1 - Portable surgical instruments - Google Patents
Portable surgical instruments Download PDFInfo
- Publication number
- US20150164581A1 US20150164581A1 US14/629,021 US201514629021A US2015164581A1 US 20150164581 A1 US20150164581 A1 US 20150164581A1 US 201514629021 A US201514629021 A US 201514629021A US 2015164581 A1 US2015164581 A1 US 2015164581A1
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- Prior art keywords
- locking
- generator
- finger
- locking mechanism
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- 238000005520 cutting process Methods 0.000 description 2
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- 238000003466 welding Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
- A61B18/1445—Probes having pivoting end effectors, e.g. forceps at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00681—Aspects not otherwise provided for
- A61B2017/00734—Aspects not otherwise provided for battery operated
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
- A61B17/320092—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw
- A61B2017/320093—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw additional movable means performing cutting operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
- A61B17/320092—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw
- A61B2017/320094—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw additional movable means performing clamping operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
- A61B17/320092—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw
- A61B2017/320095—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw with sealing or cauterizing means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00619—Welding
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/1206—Generators therefor
- A61B2018/1226—Generators therefor powered by a battery
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/59—Manually releaseable latch type
- Y10T403/591—Manually releaseable latch type having operating mechanism
Definitions
- the present disclosure relates to portable surgical instruments and, more particularly, to portable surgical instruments including a generator configured to selectively and removably couple thereto via a “quick-release” locking mechanism of the portable surgical instrument.
- Portable surgical instruments are known in the medical arts.
- Portable surgical instruments overcome some of the drawbacks that are typically associated with surgical instruments that draw power from electrical outlets. That is, outlet driven surgical instruments utilize power cords that may create tripping and/or entanglement hazards in an operating room environment.
- the portable surgical instrument includes a battery or battery assembly that is configured to removably couple or “latch” to the portable surgical instrument.
- the portable surgical instrument may be configured to include one or more selectively removable generators that communicate with the battery assembly to provide energy to an end-effector assembly that is associated with the portable surgical instrument.
- One or more suitable locking mechanisms may be associated with the portable surgical instrument to secure the generator to the portable surgical instrument.
- a locking knob may be operably coupled to a proximal end of the portable surgical instrument and configured to screw into the generator to secure the generator to the portable surgical instrument.
- the locking knob may be, initially, hand tightened and, subsequently, further tighten via a wrench or other suitable device to properly secure the generator to the portable surgical instrument.
- generators that are configured to quickly and easily couple or latch to the portable surgical instrument may prove advantageous in the surgical environment.
- generators that are configured to quickly and easily couple or latch to the portable surgical instrument may prove advantageous in the surgical environment.
- proximal as is traditional, will refer to an end that is closer to the user, while the term “distal” will refer to an end that is farther from the user.
- the portable surgical instrument includes a housing including an elongated shaft that extends distally from the housing.
- the elongated shaft is configured to pass through a cannula or body orifice and defines a longitudinal axis therethrough.
- An end effector operably supported at the distal end of the elongated shaft includes a pair of jaw members.
- One of the jaw members is movable with respect to the other jaw member from an open position for positioning tissue therebetween, to a clamping position for grasping tissue therebetween.
- One or both of the jaw is/are activatable to one of electrosurgically and ultrasonically treat tissue.
- a selectively removable generator configured to pivotally couple to the housing is configured to convert electrical energy into at least one of RF and ultrasonic energy to energize the activatable jaw member.
- the generator defining one or more apertures at a distal end thereof and a pivot member disposed at a proximal end thereof.
- a locking mechanism configured to operably couple to the elongated shaft of the housing includes one or more locking fingers configured to releasably couple to the one or more apertures disposed at the distal end of the generator such that generator is selectively and removably engageable with the housing of the portable surgical instrument.
- the one or more apertures may be further defined by three apertures.
- the portable surgical instrument further includes a stationary guide finger that is configured to engage one of the three apertures on the generator and is configured to guide the remaining aperture(s) on the generator onto the locking finger(s) on the body portion to facilitate moving the locking finger(s) into the first position.
- the locking finger(s) may be further defined by two or more locking fingers that are configured to releasably couple to two or more of the apertures.
- the housing may include a pair of apertures defined therein that are configured to receive a respective one of the locking fingers.
- the locking fingers are movable from a first position wherein the at least two locking fingers are configured to lock the generator to the housing, to a second position wherein the at least two locking fingers are configured to release the generator from the housing.
- the locking fingers each may include respective claw portions that are configured to facilitate engagement between the locking finger(s) and respective corresponding apertures on the generator.
- the locking mechanism may include a body portion that is configured to pivotally support the locking fingers on sidewalls thereof.
- the locking fingers each may include an engagement member disposed in a generally perpendicular orientation with respect to the respective claw portions.
- the engagement members may be textured to facilitate movement of the locking fingers from the first position to the second position.
- the locking finger(s) each may be pivotally supported on the sidewalls via respective arcuate medial portions.
- the body portion of the locking mechanism may further define a channel that extends therethrough and is configured to receive the elongated shaft therein to facilitate supporting the locking mechanism to the shaft.
- the locking mechanism may further includes an end cap that is configured to couple to a distal end of the housing.
- the locking mechanism may be composed of two parts that are coupled to one another via a coupling method including without limitation press-fitting, snap-fitting and ultrasonic welding.
- the portable surgical instrument may be a portable ultrasonic instrument and a portable electrosurgical instrument.
- the portable surgical instrument may include a battery assembly that is configured to house a battery therein and configured to generate electrical energy that is utilized by the generator to generate one of the RF and ultrasonic energy.
- the locking mechanism includes a body portion including an aperture defined therethrough.
- the body portion is adapted to couple to a housing of the portable surgical instrument.
- the body portion supports one or more movable locking fingers thereon.
- the one or more movable locking fingers is configured to releasably couple to one or more corresponding apertures disposed at the distal end of a generator that is adapted to selectively and removably engage the housing of the portable surgical instrument.
- the locking finger(s) may be movable from a first position wherein the locking finger(s) is/are configured to lock the generator to the housing, to a second position wherein the locking finger(s) is/are configured to unlock the generator from the housing.
- the locking finger(s) may include a claw portion that is configured to facilitate engagement between the locking finger(s) and the aperture(s) on the generator.
- a stationary guide finger may be configured to engage an aperture on the generator and configured to guide the aperture on the generator onto the locking finger(s) on the body portion to facilitate moving the locking finger(s) into the first position.
- FIG. 1A is a side, perspective view of a battery-powered surgical instrument configured for use with a generator assembly according to an embodiment of the present disclosure
- FIG. 1B is a side, perspective view of another type of battery-powered surgical instrument configured for use with a generator assembly according to an embodiment of the present disclosure
- FIG. 2 is a perspective view illustrating a bottom of the generator depicted in FIG. 1A ;
- FIG. 3 is an enlarged, perspective view of a locking mechanism utilized to selectively and removably couple the generator to the battery-powered surgical instrument depicted in either of FIG. 1A or 1 B;
- FIG. 4 is a rear, perspective view of the locking mechanism depicted in FIG. 3 attached to a shaft of the battery-powered surgical instrument depicted in FIG. 1A with a housing thereof removed;
- FIG. 5 is a partial, cut-away view taken along the line-segment “5-5” of FIG. 4 ;
- FIG. 6 is a partial, side perspective view of the battery-powered surgical instrument depicted in FIG. 1A with the generator attached;
- FIG. 7 is a partial, side perspective view of the battery-powered surgical instrument depicted in FIG. 6 with the generator and battery assembly unattached.
- a locking mechanism 26 , 126 in accordance with the present disclosure is configured for use with various handheld or portable surgical instruments (see FIGS. 1A and 1B ) and is configured to selectively and removably couple a removable energy source, e.g., an electrosurgical and/or ultrasonic energy source, to the portable surgical instrument.
- a removable energy source e.g., an electrosurgical and/or ultrasonic energy source
- the locking mechanism 26 , 126 is described in terms of use with an electrosurgical forceps 2 and an ultrasonic instrument 102 , see FIGS. 1A and 1B , respectively.
- a portable surgical instrument in the form of a bipolar electrosurgical forceps 2 (forceps 2 ) that is configured for use with locking mechanism 26 is illustrated.
- Forceps 2 is shown configured for use with various electrosurgical procedures and generally includes a housing 4 , a battery assembly 18 , a removable generator 28 , a movable handle assembly 6 , a rotating assembly 7 , a trigger assembly 10 , a drive assembly (not explicitly shown), and an end effector assembly 12 that operatively couples to the handle assembly 6 via the drive assembly for imparting movement of one or both of a pair of jaw members 14 , 16 of end effector assembly 12 .
- a proximal end of housing 4 is configured to releasably couple to an electrosurgical generator 28 (generator 28 ) and a battery assembly 18 , described in greater detail below.
- a top surface 9 of the housing 4 is configured to releasably secure the generator 28 to the housing 4 , see FIGS. 1 A and 6 - 7 .
- An aperture 11 (as best seen in FIG. 7 ) of suitable configuration is defined in a proximal end of the housing 4 and is configured to releasably engage a corresponding pivot member 13 ( FIG. 2 ) on the generator 28 .
- a multi-pin port connector 21 ( FIG.
- the multi-pin port connector 21 and multi-slot array 23 provide an electrical interface that is configured to provide electrical communication between the forceps 2 and the generator 28 .
- this electrical interface provides, inter alia, electrical continuity between the jaw members 14 and 16 and the generator 28 such that the jaw members 14 and 16 are capable of transmitting RF energy to tissue grasped therebetween.
- distal end of the housing 6 is configured to support and/or couple to a proximal end 20 of a shaft 8 .
- Shaft 8 extends from housing 6 and defines a longitudinal axis “A-A” therethrough ( FIG. 1A ).
- a pair of generally elongated apertures 3 a and 3 b of suitable configuration is defined in respective left and right sides at the distal end of housing 4 , see FIGS. 1 A and 6 - 7 .
- the apertures 3 A and 3 b are configured to receive respective engagement members 60 a and 60 b therein, described in greater detail below.
- the end effector 12 including jaw members 14 and 16 are supported at a distal end 22 of the shaft 8 ( FIG. 1A ).
- Jaw member 14 is pivotable about the jaw member 16 (and/or the distal end 22 of the shaft 18 ) and movable relative thereto when movable handle assembly 6 is moved proximally. More particularly, jaw member 14 is movable from an open position for positioning tissue between the jaw members 14 and 16 , to a clamping position for grasping tissue between the jaw members 14 and 16 .
- the forceps 2 is of the bipolar type. That is, each of the jaw members 14 and 16 includes a respective seal plate 15 and 17 ( FIG. 1A ) that is configured to function as an active (or activatable) and/or return electrode.
- Each of the seal plates 15 and 17 is in operable communication with the generator 28 via one or more electrical leads that couple to the generator 28 and extend through the shaft 8 to the seal plates 15 and 17 .
- a forceps 2 that is of a monopolar type.
- one of the jaw members e.g., jaw member 14 including seal plate 15 , functions as an active electrode and a return pad (or other suitable device) may be utilized to function as the return electrode.
- Battery assembly 18 is configured to releasably couple to the housing 4 .
- housing 4 includes a docking portion 30 ( FIGS. 1 , 6 and 7 ) defined therein.
- Docking portion 30 includes an elongated member 32 (see FIG. 7 ) that extends in a generally perpendicular orientation with respect to a base member 34 and the longitudinal axis “A-A” (see FIGS. 1A and 7 ).
- the elongated member 32 includes one or more apertures 36 (see FIG. 7 ) that are configured to releasably engage one or more corresponding protrusions 19 disposed on the battery assembly 18 .
- the battery assembly 18 functions as a stationary handle and provides a gripping surface for a user.
- a release latch 38 ( FIG. 6 ) is operably disposed at a distal end of the battery assembly 18 and provides a mechanism to remove the battery assembly 18 from the forceps 2 . More particularly, the release latch 38 is a “free-floating” part that is normally held in a retracted position by the elongated member 32 . In order to uncouple the battery assembly 18 from the forceps 2 , the release latch 38 is moved in a generally upward direction to a extended position that mechanically separates the battery assembly 18 from the forceps 2 .
- Release latch 38 includes a bottom portion 40 ( FIG. 6 ) that is ergonomically configured to receive a finger, e.g., a thumb, of a user.
- Generator 28 ( FIGS. 1A , 2 and 6 ) operably couples to the housing 6 and may be selectively removable therefrom ( FIG. 7 ) either in connection with removal of the battery assembly 18 or independently, as described in greater detail below.
- a plurality of apertures 58 a - 58 c ( FIG. 2 ) are disposed at a distal end of the generator 28 and the pivoting member 13 ( FIG. 2 ) is disposed at a proximal end of the generator 28 .
- Apertures 58 a - 58 b are configured to releasably couple to corresponding locking fingers 52 a and 52 b associated with the locking mechanism 26 , described in greater detail below.
- aperture 58 c is configured to releasably engage a corresponding guide finger 52 c associated with the locking mechanism 26 also described in greater detail below.
- Apertures 58 a - 58 c are defined by respective peripheral walls 58 a ′- 58 c ′, as best seen in FIG. 2 .
- Generator 28 is in operable communication with the battery assembly 18 to provide electrosurgical energy at one or more suitable frequencies to the end effector 12 including the jaw members 14 and 16 to electrosurgically treat tissue, e.g., seal tissue.
- generator 28 includes electronics that converts the electrical energy from the battery assembly 18 into an RF energy waveform to energize one or both of the jaw members 14 and 16 . That is, the generator 28 transmits the RF energy to the seal plates 15 and 17 to effect tissue treatment.
- Trigger assembly 10 ( FIG. 1A ) is in operable communication with a knife or cutting assembly (not shown) including a cutting or knife blade that is configured to cut or sever tissue grasped between the jaw members 14 and 16 after tissue has been electrosurgically treated.
- Rotating assembly 7 ( FIG. 1A ) is operable to rotate the shaft 8 including the end effector 12 about the longitudinal axis in either a clockwise or counter clockwise direction.
- An activation button 1 (FIGS. 1 A and 6 - 7 ) is disposed on housing 4 and is in operable communication with the generator 28 .
- the activation button 1 is configured to selectively enable the generator 28 to generate and, subsequently, transmit RF energy to the seal plates 15 and 17 of the jaw members 14 and 16 , respectively.
- ultrasonic instrument 102 includes components similar to that of forceps 2 .
- ultrasonic instrument 102 includes a housing 104 configured to house one or more components, e.g., transducer, waveguide and electrical circuitry that is configured for electrical communication with a battery assembly 118 of the instrument 102 .
- a proximal end of housing 104 is configured to releasably couple to an ultrasonic generator 128 and the battery assembly 118 .
- a distal end of the housing 104 is configured to support and/or couple to a proximal end 120 of a shaft 108 .
- Shaft 108 extends from housing 104 and defines a longitudinal axis “B-B” therethrough ( FIG. 1B ).
- the operational parts of the end effector 112 e.g., jaw members 114 and 116
- End effector 112 includes jaw members 114 and 116 ( FIG. 1B ).
- jaw member 116 serves as an active or oscillating blade and is configured to effect tissue.
- An activation button 110 places the instrument 102 in two modes of operation, a low-power mode of operation and a high-power mode of operation.
- generator 128 is configured to convert the electrical energy produced by the battery assembly 118 into ultrasonic energy. More particularly, generator 128 includes a transducer (not explicitly shown) that is configured to convert electrical energy to mechanical energy that produces motion at an end of a waveguide (not explicitly shown) that is in operative communication with the active jaw member 116 . When the transducer and waveguide are driven at their resonant frequency, they produce mechanical motion at the active jaw member 116 .
- Locking mechanisms 26 , 126 are identical to one another and are configured for use with forceps 2 and instrument 102 , respectively. Thus, for purposes of brevity, only the operable features of the locking mechanism 26 are described in detail.
- Locking mechanism 26 may be made from any suitable material including metal, ceramic, plastic, etc.
- the locking mechanism 26 is formed from a relatively rigid plastic.
- Locking mechanism 26 is formed by coupling or joining two substantially identical injection molded locking mechanism half portions 26 a and 26 b (half portions 26 a and 26 b ) to one another.
- the half portions 26 a and 26 b are joined to one another via a press-fit, friction fit, ultrasonic welding or the like.
- one of the half portions, half portion 26 a includes one or more indents 48 ( FIG.
- the locking mechanism 26 may be of unitary construction.
- locking mechanism 26 is configured to selectively and removably couple the generator 28 to the housing 4 .
- locking mechanism 26 operably couples to the elongated shaft 8 of the housing 4 by one or more suitable coupling methods. More particularly, the locking mechanism 26 includes a body portion 44 that is defined by the half portions 26 a and 26 b when the half portions 26 a and 26 b are in the assembled configuration, see FIGS. 3 and 4 .
- a channel or passageway 46 is defined through the body portion 44 and is configured to receive the shaft 8 therein to facilitate supporting the locking mechanism 26 to the shaft 8 ( FIGS. 4 and 5 ).
- a bottom leg or support post 50 ( FIG.
- Bottom leg 50 is defined by bottom leg half portions 50 a and 50 b of half portions 26 a and 26 b , respectively, as best seen in FIG. 4 .
- Locking fingers 52 a and 52 b are pivotally supported on the body portion 44 and are configured to selectively and releasably couple to corresponding apertures 58 a and 58 b ( FIG. 2 ) disposed at the distal end of the generator 28 .
- each half portion 26 a and 26 b functions as respective left and right sidewalls for the body portion 44 and supports the locking fingers 52 a and 52 b thereon.
- Locking fingers 52 a and 52 b include respective generally arcuate medial portions 54 a ( FIG. 4) and 54 b ( FIG.
- Locking fingers 52 a and 52 b are movable or pivotable about the arcuate medial portions 54 a and 54 b from a first position wherein the locking fingers 52 a and 52 b are configured to lock the generator 28 to the housing 4 , to a second position wherein the locking fingers 52 a and 52 b are configured to unlock the generator 28 from the housing 4 .
- each locking finger 52 a and 52 b includes a respective engagement member, see FIGS. 3 and 4 .
- Each engagement member 60 a and 60 b is textured to facilitate a user in moving the locking fingers 52 a and 52 b from the first position to the second position.
- the engagement members 60 a and 60 b are disposed in a generally perpendicular orientation with respect to respective claw portions 62 a and 62 b disposed on the locking fingers 52 a and 52 b ( FIGS. 3 and 4 ).
- Respective claw portions 62 a and 62 b are configured to facilitate engagement between the locking fingers 52 a and 52 b and the respective apertures 58 a and 58 b on the generator 28 .
- the claw portions 62 a and 62 b include a generally “hook” shape that facilitates maintaining the locking fingers 52 a and 52 b in an engaged configuration (e.g., in the first position) when the locking fingers 52 a and 52 b are positioned within the apertures 58 a and 58 b .
- the claws 62 a and 62 b are in vertical registration with the respective peripheral walls 58 a ′ and 58 b ′ such that a portion thereof is configured to contact the claws 62 a and 62 b as locking fingers 52 a and 52 b are being positioned into the respective apertures 58 a and 58 b.
- An end cap 62 (FIGS. 1 A and 3 - 7 ) is formed at a distal end of the body portion 44 .
- the end cap 62 is configured to facilitate in maintaining the generator 28 in a relatively fixed orientation when the generator 28 is coupled to the housing 4 .
- End cap 62 includes a generally flat configuration and engages a flat wall of the housing. In embodiments, however, end cap 62 may include a lip or flange 63 extends along an outer peripheral edge of the end cap 62 . In this instance, flange 63 is configured to grasp or latch onto a corresponding ridge 64 ( FIG. 2 ) located at the distal end of the generator 28 , as best seen in FIG. 6 .
- An optional guide finger 52 c is configured to engage the aperture 58 c on the generator 28 and is configured to guide the apertures 58 a and 58 b on the generator 28 onto the corresponding locking fingers 52 a and 52 b on the body portion 44 to facilitate moving the locking fingers 52 a and 52 b into the first position.
- Guide finger 52 c is configured to align the generator 28 and locking fingers 52 a and 52 b to ensure equal engagement between both locking fingers 52 a and 52 b and apertures 58 a and 58 b ; thus, the generator 28 will remain securely coupled to the housing 6 , even in instances where the generator 28 is side loaded.
- the guide finger 52 c ensures that both locking fingers 52 a and 52 b engage the respective apertures 58 a and 58 b at the same time, giving a more secure-feeling “tactile click” when the generator 28 is attached to the housing 6 . Further, a distal surface of the guide finger 52 c acts as a cam to force the generator 28 proximally as it is rotated into position and clipped into place.
- a proximal end of the body portion 44 forms a cavity 66 that is configured to receive a portion of a spring 67 .
- the spring 67 functions in cooperation with the drive assembly to return a blade mechanism (not explicitly shown) to its retracted position.
- battery assembly 18 is, initially, in a prepackaged condition or secured to a battery charger docking station (not shown) and unattached to the housing 4 ( FIG. 7 ).
- the generator 28 is, initially, in a prepackaged condition or secured to a generator charger docking station (not shown) and unattached to the housing 4 ( FIG. 7 ).
- a user positions the pivoting member 13 on the generator 28 into the aperture 11 located on the top surface of the housing 4 . Thereafter, the user pushes the distal end of the generator 28 downward and toward the locking fingers 52 a and 52 b and the guide finger 52 c .
- the guide finger 52 c engages the aperture 58 c to guide the apertures 58 a and 58 b onto the locking fingers 52 a and 52 b .
- claw portions 62 a and 62 b contact the respective peripheral walls 58 a ′ and 58 b ′, which, in turn, bends or flexes the locking fingers 52 a and 52 b outwardly about the concave medial portions 54 a and 54 b to the second position.
- the locking fingers 52 a and 52 b continue to flex until the claws 62 a and 62 b engage an interior surface of the generator 28 at which time the locking fingers 52 a and 52 b return to the first position.
- the lip 63 on the end cap 62 engages the ridge 64 to facilitate in maintain the generator 28 in a relatively fixed orientation about the housing 4 .
- a user pushes the engagement members 60 a and 60 b , which, in turn disengages the claws 64 a and 64 b from the interior surface of the generator 28 , while moving the generator 28 in a relatively upward direction.
- the unique locking mechanism 26 of the present disclosure enables a user to quickly and easily couple and uncouple the generator 28 from the housing 4 of the forceps 2 without the need of any additional devices and/or mechanisms.
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Abstract
A portable surgical instrument (PSI) includes a shaft extending therefrom. An end effector operably supported at the distal end of the shaft includes a pair of jaw members. One or both of the jaw members is activatable to treat tissue. A selectively removable generator pivotally couples to the housing to energize the activatable jaw member. The generator defining one or more apertures at a distal end thereof and a pivot member disposed at a proximal end thereof. A locking mechanism configured to operably couple to the elongated shaft of the housing includes one or more locking fingers configured to releasably couple to the one or more apertures disposed at the distal end of the generator such that generator is selectively and removably engageable with the housing of the portable surgical instrument.
Description
- The present application is a division of U.S. application Ser. No. 13/312,299, filed on Dec. 6, 2011, the entire contents of which are hereby incorporated by reference herein.
- 1. Technical Field
- The present disclosure relates to portable surgical instruments and, more particularly, to portable surgical instruments including a generator configured to selectively and removably couple thereto via a “quick-release” locking mechanism of the portable surgical instrument.
- 2. Background of Related Art
- Portable surgical instruments are known in the medical arts. Portable surgical instruments overcome some of the drawbacks that are typically associated with surgical instruments that draw power from electrical outlets. That is, outlet driven surgical instruments utilize power cords that may create tripping and/or entanglement hazards in an operating room environment.
- Typically, the portable surgical instrument includes a battery or battery assembly that is configured to removably couple or “latch” to the portable surgical instrument. In addition, the portable surgical instrument may be configured to include one or more selectively removable generators that communicate with the battery assembly to provide energy to an end-effector assembly that is associated with the portable surgical instrument. One or more suitable locking mechanisms may be associated with the portable surgical instrument to secure the generator to the portable surgical instrument. For example, in one particular instance, a locking knob may be operably coupled to a proximal end of the portable surgical instrument and configured to screw into the generator to secure the generator to the portable surgical instrument. In this instance, the locking knob may be, initially, hand tightened and, subsequently, further tighten via a wrench or other suitable device to properly secure the generator to the portable surgical instrument.
- As can be appreciated, generators that are configured to quickly and easily couple or latch to the portable surgical instrument may prove advantageous in the surgical environment.
- As can be appreciated, generators that are configured to quickly and easily couple or latch to the portable surgical instrument may prove advantageous in the surgical environment.
- In the drawings and in the descriptions that follow, the term “proximal,” as is traditional, will refer to an end that is closer to the user, while the term “distal” will refer to an end that is farther from the user.
- An aspect of the disclosure provides a portable surgical instrument. The portable surgical instrument includes a housing including an elongated shaft that extends distally from the housing. The elongated shaft is configured to pass through a cannula or body orifice and defines a longitudinal axis therethrough. An end effector operably supported at the distal end of the elongated shaft includes a pair of jaw members. One of the jaw members is movable with respect to the other jaw member from an open position for positioning tissue therebetween, to a clamping position for grasping tissue therebetween. One or both of the jaw is/are activatable to one of electrosurgically and ultrasonically treat tissue. A selectively removable generator configured to pivotally couple to the housing is configured to convert electrical energy into at least one of RF and ultrasonic energy to energize the activatable jaw member. The generator defining one or more apertures at a distal end thereof and a pivot member disposed at a proximal end thereof. A locking mechanism configured to operably couple to the elongated shaft of the housing includes one or more locking fingers configured to releasably couple to the one or more apertures disposed at the distal end of the generator such that generator is selectively and removably engageable with the housing of the portable surgical instrument.
- In certain instances, the one or more apertures may be further defined by three apertures.
- In certain instances, the portable surgical instrument further includes a stationary guide finger that is configured to engage one of the three apertures on the generator and is configured to guide the remaining aperture(s) on the generator onto the locking finger(s) on the body portion to facilitate moving the locking finger(s) into the first position.
- The locking finger(s) may be further defined by two or more locking fingers that are configured to releasably couple to two or more of the apertures. In this instance, the housing may include a pair of apertures defined therein that are configured to receive a respective one of the locking fingers. Moreover, and in this instance, the locking fingers are movable from a first position wherein the at least two locking fingers are configured to lock the generator to the housing, to a second position wherein the at least two locking fingers are configured to release the generator from the housing. The locking fingers each may include respective claw portions that are configured to facilitate engagement between the locking finger(s) and respective corresponding apertures on the generator.
- The locking mechanism may include a body portion that is configured to pivotally support the locking fingers on sidewalls thereof.
- The locking fingers each may include an engagement member disposed in a generally perpendicular orientation with respect to the respective claw portions. In this instance, the engagement members may be textured to facilitate movement of the locking fingers from the first position to the second position.
- The locking finger(s) each may be pivotally supported on the sidewalls via respective arcuate medial portions.
- The body portion of the locking mechanism may further define a channel that extends therethrough and is configured to receive the elongated shaft therein to facilitate supporting the locking mechanism to the shaft.
- The locking mechanism may further includes an end cap that is configured to couple to a distal end of the housing.
- The locking mechanism may be composed of two parts that are coupled to one another via a coupling method including without limitation press-fitting, snap-fitting and ultrasonic welding.
- The portable surgical instrument may be a portable ultrasonic instrument and a portable electrosurgical instrument.
- The portable surgical instrument may include a battery assembly that is configured to house a battery therein and configured to generate electrical energy that is utilized by the generator to generate one of the RF and ultrasonic energy.
- Another aspect of the present disclosure provides a locking mechanism configured for use with a portable surgical instrument. The locking mechanism includes a body portion including an aperture defined therethrough. The body portion is adapted to couple to a housing of the portable surgical instrument. The body portion supports one or more movable locking fingers thereon. The one or more movable locking fingers is configured to releasably couple to one or more corresponding apertures disposed at the distal end of a generator that is adapted to selectively and removably engage the housing of the portable surgical instrument.
- The locking finger(s) may be movable from a first position wherein the locking finger(s) is/are configured to lock the generator to the housing, to a second position wherein the locking finger(s) is/are configured to unlock the generator from the housing.
- The locking finger(s) may include a claw portion that is configured to facilitate engagement between the locking finger(s) and the aperture(s) on the generator.
- A stationary guide finger may be configured to engage an aperture on the generator and configured to guide the aperture on the generator onto the locking finger(s) on the body portion to facilitate moving the locking finger(s) into the first position.
- Various embodiments of the present disclosure are described hereinbelow with reference to the drawings, wherein:
-
FIG. 1A is a side, perspective view of a battery-powered surgical instrument configured for use with a generator assembly according to an embodiment of the present disclosure; -
FIG. 1B is a side, perspective view of another type of battery-powered surgical instrument configured for use with a generator assembly according to an embodiment of the present disclosure; -
FIG. 2 is a perspective view illustrating a bottom of the generator depicted inFIG. 1A ; -
FIG. 3 is an enlarged, perspective view of a locking mechanism utilized to selectively and removably couple the generator to the battery-powered surgical instrument depicted in either ofFIG. 1A or 1B; -
FIG. 4 is a rear, perspective view of the locking mechanism depicted inFIG. 3 attached to a shaft of the battery-powered surgical instrument depicted inFIG. 1A with a housing thereof removed; -
FIG. 5 is a partial, cut-away view taken along the line-segment “5-5” ofFIG. 4 ; -
FIG. 6 is a partial, side perspective view of the battery-powered surgical instrument depicted inFIG. 1A with the generator attached; and -
FIG. 7 is a partial, side perspective view of the battery-powered surgical instrument depicted inFIG. 6 with the generator and battery assembly unattached. - Detailed embodiments of the present disclosure are disclosed herein; however, the disclosed embodiments are merely examples of the disclosure, which may be embodied in various forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.
- A
locking mechanism 26, 126 (FIGS. 1A and 1B ) in accordance with the present disclosure is configured for use with various handheld or portable surgical instruments (seeFIGS. 1A and 1B ) and is configured to selectively and removably couple a removable energy source, e.g., an electrosurgical and/or ultrasonic energy source, to the portable surgical instrument. For illustrative purposes, thelocking mechanism electrosurgical forceps 2 and anultrasonic instrument 102, seeFIGS. 1A and 1B , respectively. - With continued reference to
FIG. 1A , a portable surgical instrument in the form of a bipolar electrosurgical forceps 2 (forceps 2) that is configured for use withlocking mechanism 26 is illustrated.Forceps 2 is shown configured for use with various electrosurgical procedures and generally includes ahousing 4, abattery assembly 18, aremovable generator 28, amovable handle assembly 6, arotating assembly 7, atrigger assembly 10, a drive assembly (not explicitly shown), and anend effector assembly 12 that operatively couples to thehandle assembly 6 via the drive assembly for imparting movement of one or both of a pair ofjaw members end effector assembly 12. - With reference to FIGS. 1A and 6-7, a proximal end of
housing 4 is configured to releasably couple to an electrosurgical generator 28 (generator 28) and abattery assembly 18, described in greater detail below. Atop surface 9 of thehousing 4 is configured to releasably secure thegenerator 28 to thehousing 4, see FIGS. 1A and 6-7. An aperture 11 (as best seen inFIG. 7 ) of suitable configuration is defined in a proximal end of thehousing 4 and is configured to releasably engage a corresponding pivot member 13 (FIG. 2 ) on thegenerator 28. A multi-pin port connector 21 (FIG. 7 ) is disposed adjacent theaperture 11 and is configured to connect to a corresponding multi-slot array 23 (FIG. 2 ) on thegenerator 28. When connected to one another, themulti-pin port connector 21 andmulti-slot array 23 provide an electrical interface that is configured to provide electrical communication between theforceps 2 and thegenerator 28. In particular, this electrical interface provides, inter alia, electrical continuity between thejaw members generator 28 such that thejaw members - With continued reference to FIGS. 1A and 6-7, distal end of the
housing 6 is configured to support and/or couple to aproximal end 20 of ashaft 8.Shaft 8 extends fromhousing 6 and defines a longitudinal axis “A-A” therethrough (FIG. 1A ). A pair of generally elongatedapertures housing 4, see FIGS. 1A and 6-7. Theapertures 3A and 3 b are configured to receiverespective engagement members - The
end effector 12 includingjaw members distal end 22 of the shaft 8 (FIG. 1A ).Jaw member 14 is pivotable about the jaw member 16 (and/or thedistal end 22 of the shaft 18) and movable relative thereto whenmovable handle assembly 6 is moved proximally. More particularly,jaw member 14 is movable from an open position for positioning tissue between thejaw members jaw members forceps 2 is of the bipolar type. That is, each of thejaw members respective seal plate 15 and 17 (FIG. 1A ) that is configured to function as an active (or activatable) and/or return electrode. Each of theseal plates generator 28 via one or more electrical leads that couple to thegenerator 28 and extend through theshaft 8 to theseal plates forceps 2 that is of a monopolar type. In this instance, one of the jaw members, e.g.,jaw member 14 includingseal plate 15, functions as an active electrode and a return pad (or other suitable device) may be utilized to function as the return electrode. -
Battery assembly 18 is configured to releasably couple to thehousing 4. To this end,housing 4 includes a docking portion 30 (FIGS. 1 , 6 and 7) defined therein.Docking portion 30 includes an elongated member 32 (seeFIG. 7 ) that extends in a generally perpendicular orientation with respect to abase member 34 and the longitudinal axis “A-A” (seeFIGS. 1A and 7 ). Theelongated member 32 includes one or more apertures 36 (seeFIG. 7 ) that are configured to releasably engage one or morecorresponding protrusions 19 disposed on thebattery assembly 18. In the embodiment illustrated inFIG. 1A , thebattery assembly 18 functions as a stationary handle and provides a gripping surface for a user. - A release latch 38 (
FIG. 6 ) is operably disposed at a distal end of thebattery assembly 18 and provides a mechanism to remove thebattery assembly 18 from theforceps 2. More particularly, therelease latch 38 is a “free-floating” part that is normally held in a retracted position by theelongated member 32. In order to uncouple thebattery assembly 18 from theforceps 2, therelease latch 38 is moved in a generally upward direction to a extended position that mechanically separates thebattery assembly 18 from theforceps 2.Release latch 38 includes a bottom portion 40 (FIG. 6 ) that is ergonomically configured to receive a finger, e.g., a thumb, of a user. - Generator 28 (
FIGS. 1A , 2 and 6) operably couples to thehousing 6 and may be selectively removable therefrom (FIG. 7 ) either in connection with removal of thebattery assembly 18 or independently, as described in greater detail below. With this purpose in mind, a plurality of apertures 58 a-58 c (FIG. 2 ) are disposed at a distal end of thegenerator 28 and the pivoting member 13 (FIG. 2 ) is disposed at a proximal end of thegenerator 28. Apertures 58 a-58 b are configured to releasably couple to corresponding lockingfingers locking mechanism 26, described in greater detail below. Likewise,aperture 58 c is configured to releasably engage acorresponding guide finger 52 c associated with thelocking mechanism 26 also described in greater detail below. Apertures 58 a-58 c are defined by respectiveperipheral walls 58 a′-58 c′, as best seen inFIG. 2 . -
Generator 28 is in operable communication with thebattery assembly 18 to provide electrosurgical energy at one or more suitable frequencies to theend effector 12 including thejaw members generator 28 includes electronics that converts the electrical energy from thebattery assembly 18 into an RF energy waveform to energize one or both of thejaw members generator 28 transmits the RF energy to theseal plates - Trigger assembly 10 (
FIG. 1A ) is in operable communication with a knife or cutting assembly (not shown) including a cutting or knife blade that is configured to cut or sever tissue grasped between thejaw members - Rotating assembly 7 (
FIG. 1A ) is operable to rotate theshaft 8 including theend effector 12 about the longitudinal axis in either a clockwise or counter clockwise direction. - An activation button 1 (FIGS. 1A and 6-7) is disposed on
housing 4 and is in operable communication with thegenerator 28. In particular, theactivation button 1 is configured to selectively enable thegenerator 28 to generate and, subsequently, transmit RF energy to theseal plates jaw members - With reference now to
FIG. 1B , a battery-powered surgical instrument in the form of anultrasonic instrument 102 that is configured for use with alocking mechanism 126 is illustrated.Instrument 102 includes components similar to that offorceps 2. Briefly,ultrasonic instrument 102 includes ahousing 104 configured to house one or more components, e.g., transducer, waveguide and electrical circuitry that is configured for electrical communication with abattery assembly 118 of theinstrument 102. A proximal end ofhousing 104 is configured to releasably couple to anultrasonic generator 128 and thebattery assembly 118. A distal end of thehousing 104 is configured to support and/or couple to aproximal end 120 of ashaft 108.Shaft 108 extends fromhousing 104 and defines a longitudinal axis “B-B” therethrough (FIG. 1B ). The operational parts of the end effector 112 (e.g.,jaw members 114 and 116) are movable relative to one another upon actuation of a movable handle assembly 106 coupled tohousing 104.End effector 112 includesjaw members 114 and 116 (FIG. 1B ). In the embodiment illustrated inFIG. 1A ,jaw member 116 serves as an active or oscillating blade and is configured to effect tissue. Anactivation button 110 places theinstrument 102 in two modes of operation, a low-power mode of operation and a high-power mode of operation. Unlikegenerator 28,generator 128 is configured to convert the electrical energy produced by thebattery assembly 118 into ultrasonic energy. More particularly,generator 128 includes a transducer (not explicitly shown) that is configured to convert electrical energy to mechanical energy that produces motion at an end of a waveguide (not explicitly shown) that is in operative communication with theactive jaw member 116. When the transducer and waveguide are driven at their resonant frequency, they produce mechanical motion at theactive jaw member 116. - Locking
mechanisms forceps 2 andinstrument 102, respectively. Thus, for purposes of brevity, only the operable features of thelocking mechanism 26 are described in detail. - With reference to FIGS. 1A and 3-7,
locking mechanism 26 is illustrated. Lockingmechanism 26 may be made from any suitable material including metal, ceramic, plastic, etc. In the illustrated embodiment, thelocking mechanism 26 is formed from a relatively rigid plastic. Lockingmechanism 26 is formed by coupling or joining two substantially identical injection molded lockingmechanism half portions half portions half portions half portion 26 a, includes one or more indents 48 (FIG. 5 ) and the other half portion, e.g.,half portion 26 b, includes one or more corresponding detents (not explicitly shown) that are configured to securely engage the corresponding intents, seeFIG. 3 in combination withFIG. 5 . Alternatively, thelocking mechanism 26 may be of unitary construction. - Continuing with reference to FIGS. 1A and 3-7,
locking mechanism 26 is configured to selectively and removably couple thegenerator 28 to thehousing 4. To this end, lockingmechanism 26 operably couples to theelongated shaft 8 of thehousing 4 by one or more suitable coupling methods. More particularly, thelocking mechanism 26 includes abody portion 44 that is defined by thehalf portions half portions FIGS. 3 and 4 . A channel orpassageway 46 is defined through thebody portion 44 and is configured to receive theshaft 8 therein to facilitate supporting thelocking mechanism 26 to the shaft 8 (FIGS. 4 and 5 ). A bottom leg or support post 50 (FIG. 4 ) is disposed at a bottom end of thebody 44 and is configured to couple to an internal frame of thehousing 4.Bottom leg 50 is defined by bottomleg half portions half portions FIG. 4 . - Locking
fingers FIGS. 3 and 4 ), are pivotally supported on thebody portion 44 and are configured to selectively and releasably couple tocorresponding apertures FIG. 2 ) disposed at the distal end of thegenerator 28. In particular, in the assembled configuration, eachhalf portion body portion 44 and supports the lockingfingers fingers medial portions 54 a (FIG. 4) and 54 b (FIG. 3 ) that allow the lockingfingers body portion 44 when theengagement members medial portions fingers medial portions fingers generator 28 to thehousing 4, to a second position wherein the lockingfingers generator 28 from thehousing 4. - To facilitate pressing the locking
fingers fingers body portion 44, each lockingfinger FIGS. 3 and 4 . Eachengagement member fingers engagement members respective claw portions fingers FIGS. 3 and 4 ). -
Respective claw portions fingers respective apertures generator 28. In the illustrated embodiment, theclaw portions fingers fingers apertures claws peripheral walls 58 a′ and 58 b′ such that a portion thereof is configured to contact theclaws fingers respective apertures - An end cap 62 (FIGS. 1A and 3-7) is formed at a distal end of the
body portion 44. Theend cap 62 is configured to facilitate in maintaining thegenerator 28 in a relatively fixed orientation when thegenerator 28 is coupled to thehousing 4.End cap 62 includes a generally flat configuration and engages a flat wall of the housing. In embodiments, however,end cap 62 may include a lip orflange 63 extends along an outer peripheral edge of theend cap 62. In this instance,flange 63 is configured to grasp or latch onto a corresponding ridge 64 (FIG. 2 ) located at the distal end of thegenerator 28, as best seen inFIG. 6 . - An
optional guide finger 52 c is configured to engage theaperture 58 c on thegenerator 28 and is configured to guide theapertures generator 28 onto the corresponding lockingfingers body portion 44 to facilitate moving the lockingfingers Guide finger 52 c is configured to align thegenerator 28 and lockingfingers fingers apertures generator 28 will remain securely coupled to thehousing 6, even in instances where thegenerator 28 is side loaded. Moreover, theguide finger 52 c ensures that both lockingfingers respective apertures generator 28 is attached to thehousing 6. Further, a distal surface of theguide finger 52 c acts as a cam to force thegenerator 28 proximally as it is rotated into position and clipped into place. - In the illustrated embodiment, a proximal end of the
body portion 44 forms acavity 66 that is configured to receive a portion of aspring 67. Thespring 67 functions in cooperation with the drive assembly to return a blade mechanism (not explicitly shown) to its retracted position. - In use,
battery assembly 18 is, initially, in a prepackaged condition or secured to a battery charger docking station (not shown) and unattached to the housing 4 (FIG. 7 ). Similarly, thegenerator 28 is, initially, in a prepackaged condition or secured to a generator charger docking station (not shown) and unattached to the housing 4 (FIG. 7 ). To attach thegenerator 28 to thehousing 4, a user positions the pivotingmember 13 on thegenerator 28 into theaperture 11 located on the top surface of thehousing 4. Thereafter, the user pushes the distal end of thegenerator 28 downward and toward the lockingfingers guide finger 52 c. Theguide finger 52 c engages theaperture 58 c to guide theapertures fingers fingers apertures claw portions peripheral walls 58 a′ and 58 b′, which, in turn, bends or flexes the lockingfingers medial portions fingers claws generator 28 at which time the lockingfingers lip 63 on theend cap 62 engages theridge 64 to facilitate in maintain thegenerator 28 in a relatively fixed orientation about thehousing 4. - To remove the
generator 28, a user pushes theengagement members generator 28, while moving thegenerator 28 in a relatively upward direction. - The
unique locking mechanism 26 of the present disclosure enables a user to quickly and easily couple and uncouple thegenerator 28 from thehousing 4 of theforceps 2 without the need of any additional devices and/or mechanisms. - As can be appreciated, use of the
locking mechanism 126 is substantially similar to that of thelocking mechanism 26 and, as a result thereof, will not be described in detail. - While several embodiments of the disclosure have been shown in the drawings, it is not intended that the disclosure be limited thereto, as it is intended that the disclosure be as broad in scope as the art will allow and that the specification be read likewise. Therefore, the above description should not be construed as limiting, but merely as exemplifications of particular embodiments. Those skilled in the art will envision other modifications within the scope and spirit of the claims appended hereto.
Claims (18)
1-20. (canceled)
21. A locking mechanism configured for use with a surgical instrument, the locking mechanism comprising:
a body portion including a channel defined therethrough, the body portion adapted to couple to a housing of the surgical instrument; and
at least one locking finger depending from the body portion, the at least one locking finger configured to releasably couple to at least one aperture disposed on a generator that is adapted to selectively and removably engage the housing of the surgical instrument.
22. A locking mechanism according to claim 21 , wherein the at least one locking finger is movable from a first position wherein the at least one locking finger is configured to lock the generator to the housing, to a second position wherein the at least one locking finger is configured allow the generator to be disengaged from the housing.
23. A locking mechanism according to claim 21 , wherein the at least one locking finger includes a claw portion configured to facilitate engagement between the at least one locking finger and the at least one aperture of the generator.
24. A locking mechanism according to claim 21 , further comprising a guide finger configured to engage a guide aperture of the generator.
25. A locking mechanism according to claim 24 , wherein the guide finger is fixed from movement with respect to the body portion, and wherein the at least one locking finger is movable with respect to the body portion.
26. A locking mechanism according to claim 21 , wherein the at least one locking finger is further defined by at least two locking fingers, each locking finger of the least two locking fingers being configured to releasably couple to an aperture of the generator.
27. A locking mechanism according to claim 26 , wherein the body portion includes two sidewalls, and wherein each locking finger of the at least two locking fingers is pivotally connected to one sidewall.
28. A locking mechanism according to claim 23 , wherein the at least one locking finger is further defined by at least two locking fingers and wherein each locking finger of the at least two locking fingers includes an engagement member disposed in a generally perpendicular orientation with respect to the respective claw portion.
29. A locking mechanism according to claim 21 , wherein the channel is configured to receive at least a portion of an elongated shaft of the surgical instrument therein.
30. A locking mechanism configured to selectively couple a generator with a surgical instrument, the locking mechanism comprising:
a body portion adapted to couple to the surgical instrument, the body portion including a channel defined therethrough, the channel configured to receive at least a portion of an elongated shaft of the surgical instrument therein; and
at least one locking finger supported on the body portion, the at least one locking finger configured to releasably couple to at least one aperture defined within the generator.
31. A locking mechanism according to claim 30 , wherein the at least one locking finger is movable from a first position wherein the at least one locking finger is configured to lock the generator to a housing of the surgical instrument, to a second position wherein the at least one locking finger is configured allow the generator to be disengaged from the housing.
32. A locking mechanism according to claim 30 , wherein the at least one locking finger includes a claw portion configured to facilitate engagement between the at least one locking finger and the at least one aperture of the generator.
33. A locking mechanism according to claim 30 , further comprising a guide finger configured to engage a guide aperture of the generator.
34. A locking mechanism according to claim 33 , wherein the guide finger is fixed from movement with respect to the body portion, and wherein the at least one locking finger is movable with respect to the body portion.
35. A locking mechanism according to claim 30 , wherein the at least one locking finger is further defined by at least two locking fingers, each locking finger of the least two locking fingers being configured to releasably couple a corresponding at least one aperture defined within the generator.
36. A locking mechanism according to claim 30 , wherein the at least one locking finger is further defined by at least two locking fingers and wherein the body portion includes two sidewalls, and wherein each locking finger of the at least two locking fingers is pivotally connected to one sidewall.
37. A locking mechanism according to claim 32 , wherein the at least one locking finger is further defined by at least two locking fingers and wherein each locking finger of the at least two locking fingers includes an engagement member disposed in a generally perpendicular orientation with respect to the respective claw portion.
Priority Applications (1)
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US14/629,021 US20150164581A1 (en) | 2011-12-06 | 2015-02-23 | Portable surgical instruments |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US13/312,299 US8968285B2 (en) | 2011-12-06 | 2011-12-06 | Portable surgical instruments |
US14/629,021 US20150164581A1 (en) | 2011-12-06 | 2015-02-23 | Portable surgical instruments |
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US13/312,299 Division US8968285B2 (en) | 2011-12-06 | 2011-12-06 | Portable surgical instruments |
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US13/312,299 Active 2033-10-23 US8968285B2 (en) | 2011-12-06 | 2011-12-06 | Portable surgical instruments |
US14/629,021 Abandoned US20150164581A1 (en) | 2011-12-06 | 2015-02-23 | Portable surgical instruments |
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US13/312,299 Active 2033-10-23 US8968285B2 (en) | 2011-12-06 | 2011-12-06 | Portable surgical instruments |
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CN108697467B (en) * | 2016-03-04 | 2021-05-28 | 柯惠Lp公司 | Ultrasonic instrument for robotic surgical system |
US11331099B2 (en) | 2017-09-01 | 2022-05-17 | Rev Medica, Inc. | Surgical stapler with removable power pack and interchangeable battery pack |
US10966720B2 (en) | 2017-09-01 | 2021-04-06 | RevMedica, Inc. | Surgical stapler with removable power pack |
US10695060B2 (en) | 2017-09-01 | 2020-06-30 | RevMedica, Inc. | Loadable power pack for surgical instruments |
US11564685B2 (en) | 2019-07-19 | 2023-01-31 | RevMedica, Inc. | Surgical stapler with removable power pack |
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US20070233053A1 (en) * | 2006-01-31 | 2007-10-04 | Ethicon Endo-Surgery, Inc. | Articulatable drive shaft arrangements for surgical cutting and fastening instruments |
US20090125048A1 (en) * | 2006-04-25 | 2009-05-14 | Facet Technologies, Llc | Lancing device with independent drive core |
US20090171354A1 (en) * | 2007-11-28 | 2009-07-02 | Derek Dee Deville | Cordless Medical Cauterization and Cutting Device |
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US5207697A (en) | 1991-06-27 | 1993-05-04 | Stryker Corporation | Battery powered surgical handpiece |
US5747953A (en) | 1996-03-29 | 1998-05-05 | Stryker Corporation | Cordless, battery operated surical tool |
USD439334S1 (en) | 1998-10-26 | 2001-03-20 | Stryker Corporation | Handpiece for a surgical tool |
US7461767B2 (en) | 2005-06-03 | 2008-12-09 | Tyco Healthcare Group Lp | Battery powered surgical instrument |
US8663262B2 (en) | 2007-12-03 | 2014-03-04 | Covidien Ag | Battery assembly for battery-powered surgical instruments |
US8425545B2 (en) * | 2007-12-03 | 2013-04-23 | Covidien Ag | Cordless hand-held ultrasonic cautery cutting device and method |
-
2011
- 2011-12-06 US US13/312,299 patent/US8968285B2/en active Active
-
2015
- 2015-02-23 US US14/629,021 patent/US20150164581A1/en not_active Abandoned
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US20070233053A1 (en) * | 2006-01-31 | 2007-10-04 | Ethicon Endo-Surgery, Inc. | Articulatable drive shaft arrangements for surgical cutting and fastening instruments |
US20090125048A1 (en) * | 2006-04-25 | 2009-05-14 | Facet Technologies, Llc | Lancing device with independent drive core |
US20090171354A1 (en) * | 2007-11-28 | 2009-07-02 | Derek Dee Deville | Cordless Medical Cauterization and Cutting Device |
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US8968285B2 (en) | 2015-03-03 |
US20130144285A1 (en) | 2013-06-06 |
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Owner name: TYCO HEALTHCARE GROUP LP, MASSACHUSETTS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TWOMEY, JOHN R.;ROBINSON, WILLIAM E.;CRAIG, JASON L.;SIGNING DATES FROM 20111129 TO 20111130;REEL/FRAME:035008/0643 Owner name: COVIDIEN LP, MASSACHUSETTS Free format text: CHANGE OF NAME;ASSIGNOR:TYCO HEALTHCARE GROUP LP;REEL/FRAME:035071/0090 Effective date: 20120928 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |