CA2074739C - Deflecting forceps - Google Patents
Deflecting forceps Download PDFInfo
- Publication number
- CA2074739C CA2074739C CA002074739A CA2074739A CA2074739C CA 2074739 C CA2074739 C CA 2074739C CA 002074739 A CA002074739 A CA 002074739A CA 2074739 A CA2074739 A CA 2074739A CA 2074739 C CA2074739 C CA 2074739C
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- Canada
- Prior art keywords
- jaws
- elongated
- rigid
- tubular housing
- forceps
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2901—Details of shaft
- A61B2017/2905—Details of shaft flexible
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
- A61B2017/2927—Details of heads or jaws the angular position of the head being adjustable with respect to the shaft
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Ophthalmology & Optometry (AREA)
- Molecular Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Harvester Elements (AREA)
- Manipulator (AREA)
Abstract
A forceps apparatus is provided herein. The forcep apparatus comprises an elongated rigid tubular housing having a hollow interior comprising a bore with a longitudinal axis, the housing having a proximal end portion and a distal end portion and a length which is nearly the entire length of said forceps apparatus. The forceps apparatus further comprises a pair of forceps jaws extending beyond the distal end portion of the elongated rigid tubular housing. The forceps apparatus further comprises a manually-operable handle positioned at the proximal end portion of the housing for operating the forceps jaws, each such handle having a portion that is spaced laterally away from the longitudinal axis of the bore of the housing. The forceps apparatus further comprises a linkage extending through the bore between the handle and the forcep jaws for transmitting force between the handle and said forcep jaws during the operation of opening or closing of the forcep jaws. The forceps apparatus further comprises a cable positioned within the bore of the housing for moving the forcep jaws from a first position, wherein the forcep jaws extend in a direction which is parallel to, and generally aligned with, the longitudinal axis of the bore of the housing, to a second position, wherein the forcep jaws are positioned laterally away from the longitudinal axis of the bore of the housing, a cable end portion being permanently attached to the forcep jaws for movement therewith. The forceps apparatus further comprises a manually-operable actuator positioned at the proximal end of the housing and connected to the cable for operating the cable means. The handle and the actuator are configured for operation by hands of a user. The linkage further comprises biasing means which are rigidly supported at the distal end portion of the housing, extending from the bore of the housing for returning the forcep jaws to a position where they are aligned with the longitudinal axis of the bore of said housing.
Description
DEFLECTING FORCEPS
TECHNICAL FIELD
The present invention relates to a deflecting forceps having forceps jaws that can be swung to reach tissue at a location remote from the normal position of the forceps jaws.
BACKGROUND ART
While generally useful in surgical procedures, e.g., endoscopic procedures. the present invention is particularly useful in the procedure described in Parviz Kambin United States Patent 4,573,448. issued March 4, 1989. In that procedure, an access cannula is inserted into a herniated intervertebral disc, and thereafter fragments of tissue are removed from the disc through the access cannula. The area that is accessible to surgical tools which are inserted into the disc through the cannula is limited to tissue lying along a path which is coaxial with the longitudinal axis of the access cannula. While such surgical tools can be rotated about this axis, they cannot reach tissue which is located at a position remote from the axis.
DESCRIPTION OF THE INVENTION
An object of a first aspect of the present invention is to provide deflecting forceps with means for reaching tissue at these remote locations, by providing forceps jaws which can be swung from a normal position which is parallel to, or lying along, the axis of the cannula to a position which is transverse to the axis.
An object of a second aspect of the present invention is to provide such forceps by means of which tissue which is located away from the axis can be readily reached and removed, whereas it would have been left untouched by conventional forceps.
A first broad aspect of the present invention which comprises providing an elongated rigid tubular housing having a hollow interior comprising a bore with a longitudinal axis, the housing having a proximal end portion and a distal end portion and a length which is nearly the entire length of said forceps apparatus. The forceps apparatus further comprises a pair of forceps jaws extending beyond the distal end portion of the elongated rigid tubular housing. The forceps apparatus further comprises a manually-operable handle positioned at the proximal end portion of the housing for operating the jaws, each such handle having a portion that is spaced laterally away from the longitudinal axis of the bore of the housing. The forceps apparatus further comprises a linkage extending through the bore of the housing between the handle and the forcep jaws for transmitting force between the handle and the forcep jaws during the operation of opening or closing of the forcep jaws. The forceps apparatus further comprises a cable positioned within the bore of the housing for moving the forcep jaws from a first position, wherein the forcep jaws extend in a direction which is parallel to, and generally aligned with, the longitudinal axis of said bore of said housing, to a second position, wherein the forcep jaws are positioned laterally away from the longitudinal axis of the bore of the housing, a cable end portion being permanently attached to the forcep jaws for movement therewith. The forceps apparatus further comprises a manually-operable actuator positioned at the proximal end of the housing and connected to the cable for operating the cable. The handle and the actuator are configured for operation by hands of a user. The linkage further comprises biasing means which are rigidly supported at the distal end portion of the housing, extending from the bore for returning the forcep jaws to a position where they are aligned with the longitudinal axis of the bore of the housing.
A second broad aspect of the present invention provides a deflecting forceps apparatus comprising a pair of handles pivotally connected to one another and pivotally movable relative to one another between open and closed positions.
The forceps apparatus further comprises an elongated, rigid tubular housing with a proximal and portion and a distal end portions and a length which is nearly the entire length of the forceps apparatus, a hollow interior thereof comprising a bore having a longitudinal axis and a length which is nearly the entire length of said forceps apparatus, the elongated, rigid housing being fixed at its proximal end portion, to and extending from, one of the handles and terminating in the distal end portion. The forceps apparatus further comprises a pair of forceps jaws positioned at the distal end portion. The forceps apparatus further comprises linking means having a longitudinally-extending axis extending through the bore of the elongated, rigid tubular housing the linking means having a proximal end and a distal end, the linking means being connected at -3a-its proximal end to at least one of the handles, and at its distal end being connected to the pair of forcep jaws. The linking means further having means for moving the forcep jaws between open and closed positions responsive to a movement of the handles relative to one another between such positions by a hand of a user, thereby to operate the forcep jaws. The forceps apparatus further comprises an actuator cable means having a longitudinally-extending axis which is parallel to the bore of the elongated, rigid housing, the actuator cable means having a proximal end and a distal end.
The forceps apparatus further comprises an actuator means pivotally mounted at the proximal end portion of the housing and connected to the proximal end of said actuator cable means. The distal end of the actuator cable means is operatively associated with the forceps jaws such that manually pivoting of the actuator cable means causes the actuator cable means to swing the forceps jaws from a first aligned position, wherein the forceps jaws are parallel to the longitudinal axis of the bore of the elongated, rigid, tubular housing, to a second offset position, wherein the forceps jaws are transverse to the longitudinal axis of the bore of said elongated, rigid tubular housing. The linking means includes a spring which is configured for urging the forceps jaws to the first position, the spring having a distal end which is connected to the forceps jaws for movement therewith as the forceps jaws swing between the two positions, and a proximal end that is fixed with respect to the housing.
A third aspect of the present invention provides a forceps apparatus comprising an elongated, rigid, tubular housing having a bore with a longitudinal linear axis, the -3b-elongated, rigid, tubular housing having a proximal end and a distal end and a length which is nearly the entire length of the forceps apparatus portion. The forceps apparatus further comprises a pair of forcep jaws extending beyond the bore of the elongated, rigid, tubular housing at the distal end of the elongated, rigid, tubular housing. The forceps apparatus further comprises a pair of manually-operable handles positioned at the proximal end of the elongated, rigid, tubular housing for operating the forcep jaws, at least one of the handles being rigidly connected to the proximal end of the elongated, rigid, tubular housing, and one of the handles being movable relative to the other handle for operating the forcep jaws responsive to the movement, each such handle having a portion that is spaced laterally away from the longitudinal linear axis of the elongated, rigid, tubular housing. The forceps apparatus further comprises a linkage member extending through the bore between the handles and the forcep jaws for transmitting force between the handles and the forcep jaws during the operation of opening or closing the forcep jaws, wherein the forcep jaws open and close when the handles are moved relative to one another. The forceps apparatus further comprises a cable positioned within the bore of the elongated rigid tubular housing for moving the forcep jaws from a first position, wherein the forcep jaws extend in a direction which is parallel to, and generally aligned with, the longitudinal axis of the bore of said elongated, rigid, tubular housing, to a second position, wherein the forcep jaws are positioned laterally away from the longitudinal axis of the bore of the elongated, rigid, tubular housing, a cable end portion being permanently attached to the forcep -3c-jaws for movement therewith. The forcep jaws are supported upon a coil spring which is rigidly supported at the distal end of the elongated, rigid, tubular housing and extending from the bore of the elongated, rigid, tubular housing for returning the forcep jaws to a position which are aligned with the longitudinal axis of the bore of the elongated, rigid, tubular housing, wherein tension which is applied to the cable flexes the coil spring to move the forcep jaws laterally away from the longitudinal linear axis of the bore of the elongated, rigid, tubular housing. The forceps apparatus further comprises a manually-operable actuator positioned at the proximal end of the elongated rigid tubular housing and connected to the cable for operating the cable to flex the spring and to move the forcep jaws laterally.
Tn particular, the present invention, in one aspect thereof, provides a forceps having forceps jaws extending beyond the distal end of a tubular housing, the jaws being operated by manually operable handles at the proximal end of the housing. The forceps of aspects of the present invention also includes a cable for swinging the jaws from a first or normal position, in which the jaws extend in a direction which is parallel to the longitudinal axis of the housing, to a second position, in which the jaws are transverse to that longitudinal axis. The forceps include a manually-operable actuator at the proximal end of the housing which is connected to the proximal end of the cable so that the cable can be moved in a direction to swing the jaws to the second position when the actuator is operated.
Preferably, the forceps are provided with a suction conduit communicating the interior of the housing to a -3d-source of suction to facilitate removal of tissue by pulling tissue by suction to the forceps jaws. In addition, smaller bits of tissue can be removed from the surgical site by being aspirated through the housing.
DESCRIPTION OF THE FIGURES
In the accompanying drawings:
Fig. 1 is an elevational view of an embodiment of the forceps of one aspect of the present invention;
Fig. 2 is a detail top plan view, in enlarged scale, partly in section, of the distal end of the forceps of an aspect of the present invention of Fig. 1.
Figs. 3 and 4 are sections taken along lines 3-3 and 4-4 in Fig. 2, respectively.
Fig. 5 is a detail elevational view, in section, of the distal end of the forceps of an aspect of the present invention of Fig. l;
Fig. 6 is a detail view, in perspective, of the distal end of the forceps of an aspect of the present invention;
Fig. 7 is a detail elevational view, in section, in enlarged scale, of the proximal end of the forceps of an aspect of the present invention of Fig. 1; and Fig. 8 is a detail elevational view, in section, of the actuator for the jaws of the forceps of an aspect of the present invention of Fig. 1.
AT LEAST ONE MODE FOR CARRYING OUT THE INVENTION
Referring to Fig. l, the forceps 1 has an elongated tubular housing 2, a pair of forceps jaws 3 at the distal -3e-end 2a of housing 2 and a pair of normally open handles 4a, 4b at the proximal end 2b of housing 2. Movable handle 4a is connected to one end of a cable 5, while the other end of cable 5 is connected to a pantograph linkage 6 (Fig. 2), which in turn is connected to jaws 3. Closing and opening the handles 4a, 4b opens and closes the jaws 3, respectively, via cable 5 and linkage 6, as is conventional.
Actuator 7 is located at the proximal end 2b of housing 2. While shown as pivotally mounted on fixed handle 4b, actuator 7 can, if desired, be mounted instead on the proximal end 2b of housing 2. Cable 8 is connected to actuator 7 and is looped through bore 9 in collar 10. As paresently prefer3ced, lengths Via, 8b of cable ~ e~'tend from.
oo~.lar 10 through the interior 2c of housing 2 and are fastened to the underside of actuator !, as shy ~ Fig. ~_ In the emlaodimex~t of the forceps 1 sho~'n ~a the dw~.l~gs, collar ZO i.s secured, as by ksra~ing, to linkage ~ ;~d heaace to jays 3 (Fig. ~)a However, the li.ge ~ ~aY include an a.zitegraL portion (not shop) having a bore fog' receiving the Loop ~c of cable ~ o ~lterna-tive~.y, col~.~c 7.0 can be rotatably linked to cab~,e 8 by other means, such as by connecting a loop (riot showaa) at the distal erxd of ale ~
to a post (not sho~°a.) carried by collar 3.m-It is present~.y preferred to locate cable ~ ~Tithan sleeve 1~ , ~rhich is in turn located ~r~.thin hoping 2 9 ~o~tever, sleeve 14 care also be located on the outside of housing 2 (not shown) faith the cable 8 thus passing through s~~~Y~3 14 e~terTla~.J..y of hotl51.~1g 2 o Fu~hO~e, Sleeve g'4 can eve~a be omitted entirely, pith 'the cable $ simply being located inside or outside of housing 2e Depression of the actuator 7 to the dotted liras 20 positioxa sh~~rn ia~ ~'igo 1, as by thumb pressure, ~ailg apply a s~inginc3 force t~ cohar 10 via cable s and he$ce will swuag the ja~ts 3 from the normal position sho~m 3.a3 Fags 5, s~here~.n the jai are parallel. to the longitudinal axes of housing 2, to the dotted lie position (Fig> 5), wherein the jaws 3 are 25 transverse to the 3.os~gitud.inal axis of horsing ao Spring 13., whach is ia~ comgression, uses the j avs ~ to retuzn to the l2orraaJ. position.
Ire a prefasr~ed ea~b~t of the invex~tioxa, a suction cozsduit 1z having an internal valve ~3 co~nuta~.a~afc~s ~tith the g interior 2c of ~°~ousing z as will be dcscr~ed in detaii hereinafter. taThen conduct 1z is connected to a s~urce of suo~aoaa, tissue riear the distal. ~.nd of the. forcep. w3,13. be pulled by suction to the jars ~, arad saaalZer bits of tissue removed by jaws ~ can be aspirated from the suagica3. site ,p through the interior 2c of housing a~ ~'~ee l~ can be ~perd.ted t~ cOnts'~~. t~~ d~~Z'e~.' of SlSCtlon Or tt7 dl5COn31~Ct the anterior 2c of housing 2 from t'L~e source or suction, as desized. If desired, the forceps 3. can be made without suction conduit 3.z and 'va~.ve 13.
15 Jards 3 may take the form of auy useful tool. ~s shown, jaws 3 comprise forceps cups 3a, 3b, rahich may have serrated edges {~aot shown) if desired. Other useful tools include scissors. ~'aSPers and the ~.~.ke.
It is presently pregerred to use a p~aratoc~aph lix~cage 6 zo (~Fi~. z) comprising stationary pivot ~a car'ried by statioraa~ arm ~b ~~ig. s) , movable pivot 6c connected to the cable 5 (Fig. 5) and m~ea~ble pivots 6d °~at pivotally connect ja'as 3a, 3b to the mole 19 Hers 6e. a use of a pantoc~aPh ~.inkage to connect forceps jars to a 25 pull cable is conventional: other linkages may also be used.
TECHNICAL FIELD
The present invention relates to a deflecting forceps having forceps jaws that can be swung to reach tissue at a location remote from the normal position of the forceps jaws.
BACKGROUND ART
While generally useful in surgical procedures, e.g., endoscopic procedures. the present invention is particularly useful in the procedure described in Parviz Kambin United States Patent 4,573,448. issued March 4, 1989. In that procedure, an access cannula is inserted into a herniated intervertebral disc, and thereafter fragments of tissue are removed from the disc through the access cannula. The area that is accessible to surgical tools which are inserted into the disc through the cannula is limited to tissue lying along a path which is coaxial with the longitudinal axis of the access cannula. While such surgical tools can be rotated about this axis, they cannot reach tissue which is located at a position remote from the axis.
DESCRIPTION OF THE INVENTION
An object of a first aspect of the present invention is to provide deflecting forceps with means for reaching tissue at these remote locations, by providing forceps jaws which can be swung from a normal position which is parallel to, or lying along, the axis of the cannula to a position which is transverse to the axis.
An object of a second aspect of the present invention is to provide such forceps by means of which tissue which is located away from the axis can be readily reached and removed, whereas it would have been left untouched by conventional forceps.
A first broad aspect of the present invention which comprises providing an elongated rigid tubular housing having a hollow interior comprising a bore with a longitudinal axis, the housing having a proximal end portion and a distal end portion and a length which is nearly the entire length of said forceps apparatus. The forceps apparatus further comprises a pair of forceps jaws extending beyond the distal end portion of the elongated rigid tubular housing. The forceps apparatus further comprises a manually-operable handle positioned at the proximal end portion of the housing for operating the jaws, each such handle having a portion that is spaced laterally away from the longitudinal axis of the bore of the housing. The forceps apparatus further comprises a linkage extending through the bore of the housing between the handle and the forcep jaws for transmitting force between the handle and the forcep jaws during the operation of opening or closing of the forcep jaws. The forceps apparatus further comprises a cable positioned within the bore of the housing for moving the forcep jaws from a first position, wherein the forcep jaws extend in a direction which is parallel to, and generally aligned with, the longitudinal axis of said bore of said housing, to a second position, wherein the forcep jaws are positioned laterally away from the longitudinal axis of the bore of the housing, a cable end portion being permanently attached to the forcep jaws for movement therewith. The forceps apparatus further comprises a manually-operable actuator positioned at the proximal end of the housing and connected to the cable for operating the cable. The handle and the actuator are configured for operation by hands of a user. The linkage further comprises biasing means which are rigidly supported at the distal end portion of the housing, extending from the bore for returning the forcep jaws to a position where they are aligned with the longitudinal axis of the bore of the housing.
A second broad aspect of the present invention provides a deflecting forceps apparatus comprising a pair of handles pivotally connected to one another and pivotally movable relative to one another between open and closed positions.
The forceps apparatus further comprises an elongated, rigid tubular housing with a proximal and portion and a distal end portions and a length which is nearly the entire length of the forceps apparatus, a hollow interior thereof comprising a bore having a longitudinal axis and a length which is nearly the entire length of said forceps apparatus, the elongated, rigid housing being fixed at its proximal end portion, to and extending from, one of the handles and terminating in the distal end portion. The forceps apparatus further comprises a pair of forceps jaws positioned at the distal end portion. The forceps apparatus further comprises linking means having a longitudinally-extending axis extending through the bore of the elongated, rigid tubular housing the linking means having a proximal end and a distal end, the linking means being connected at -3a-its proximal end to at least one of the handles, and at its distal end being connected to the pair of forcep jaws. The linking means further having means for moving the forcep jaws between open and closed positions responsive to a movement of the handles relative to one another between such positions by a hand of a user, thereby to operate the forcep jaws. The forceps apparatus further comprises an actuator cable means having a longitudinally-extending axis which is parallel to the bore of the elongated, rigid housing, the actuator cable means having a proximal end and a distal end.
The forceps apparatus further comprises an actuator means pivotally mounted at the proximal end portion of the housing and connected to the proximal end of said actuator cable means. The distal end of the actuator cable means is operatively associated with the forceps jaws such that manually pivoting of the actuator cable means causes the actuator cable means to swing the forceps jaws from a first aligned position, wherein the forceps jaws are parallel to the longitudinal axis of the bore of the elongated, rigid, tubular housing, to a second offset position, wherein the forceps jaws are transverse to the longitudinal axis of the bore of said elongated, rigid tubular housing. The linking means includes a spring which is configured for urging the forceps jaws to the first position, the spring having a distal end which is connected to the forceps jaws for movement therewith as the forceps jaws swing between the two positions, and a proximal end that is fixed with respect to the housing.
A third aspect of the present invention provides a forceps apparatus comprising an elongated, rigid, tubular housing having a bore with a longitudinal linear axis, the -3b-elongated, rigid, tubular housing having a proximal end and a distal end and a length which is nearly the entire length of the forceps apparatus portion. The forceps apparatus further comprises a pair of forcep jaws extending beyond the bore of the elongated, rigid, tubular housing at the distal end of the elongated, rigid, tubular housing. The forceps apparatus further comprises a pair of manually-operable handles positioned at the proximal end of the elongated, rigid, tubular housing for operating the forcep jaws, at least one of the handles being rigidly connected to the proximal end of the elongated, rigid, tubular housing, and one of the handles being movable relative to the other handle for operating the forcep jaws responsive to the movement, each such handle having a portion that is spaced laterally away from the longitudinal linear axis of the elongated, rigid, tubular housing. The forceps apparatus further comprises a linkage member extending through the bore between the handles and the forcep jaws for transmitting force between the handles and the forcep jaws during the operation of opening or closing the forcep jaws, wherein the forcep jaws open and close when the handles are moved relative to one another. The forceps apparatus further comprises a cable positioned within the bore of the elongated rigid tubular housing for moving the forcep jaws from a first position, wherein the forcep jaws extend in a direction which is parallel to, and generally aligned with, the longitudinal axis of the bore of said elongated, rigid, tubular housing, to a second position, wherein the forcep jaws are positioned laterally away from the longitudinal axis of the bore of the elongated, rigid, tubular housing, a cable end portion being permanently attached to the forcep -3c-jaws for movement therewith. The forcep jaws are supported upon a coil spring which is rigidly supported at the distal end of the elongated, rigid, tubular housing and extending from the bore of the elongated, rigid, tubular housing for returning the forcep jaws to a position which are aligned with the longitudinal axis of the bore of the elongated, rigid, tubular housing, wherein tension which is applied to the cable flexes the coil spring to move the forcep jaws laterally away from the longitudinal linear axis of the bore of the elongated, rigid, tubular housing. The forceps apparatus further comprises a manually-operable actuator positioned at the proximal end of the elongated rigid tubular housing and connected to the cable for operating the cable to flex the spring and to move the forcep jaws laterally.
Tn particular, the present invention, in one aspect thereof, provides a forceps having forceps jaws extending beyond the distal end of a tubular housing, the jaws being operated by manually operable handles at the proximal end of the housing. The forceps of aspects of the present invention also includes a cable for swinging the jaws from a first or normal position, in which the jaws extend in a direction which is parallel to the longitudinal axis of the housing, to a second position, in which the jaws are transverse to that longitudinal axis. The forceps include a manually-operable actuator at the proximal end of the housing which is connected to the proximal end of the cable so that the cable can be moved in a direction to swing the jaws to the second position when the actuator is operated.
Preferably, the forceps are provided with a suction conduit communicating the interior of the housing to a -3d-source of suction to facilitate removal of tissue by pulling tissue by suction to the forceps jaws. In addition, smaller bits of tissue can be removed from the surgical site by being aspirated through the housing.
DESCRIPTION OF THE FIGURES
In the accompanying drawings:
Fig. 1 is an elevational view of an embodiment of the forceps of one aspect of the present invention;
Fig. 2 is a detail top plan view, in enlarged scale, partly in section, of the distal end of the forceps of an aspect of the present invention of Fig. 1.
Figs. 3 and 4 are sections taken along lines 3-3 and 4-4 in Fig. 2, respectively.
Fig. 5 is a detail elevational view, in section, of the distal end of the forceps of an aspect of the present invention of Fig. l;
Fig. 6 is a detail view, in perspective, of the distal end of the forceps of an aspect of the present invention;
Fig. 7 is a detail elevational view, in section, in enlarged scale, of the proximal end of the forceps of an aspect of the present invention of Fig. 1; and Fig. 8 is a detail elevational view, in section, of the actuator for the jaws of the forceps of an aspect of the present invention of Fig. 1.
AT LEAST ONE MODE FOR CARRYING OUT THE INVENTION
Referring to Fig. l, the forceps 1 has an elongated tubular housing 2, a pair of forceps jaws 3 at the distal -3e-end 2a of housing 2 and a pair of normally open handles 4a, 4b at the proximal end 2b of housing 2. Movable handle 4a is connected to one end of a cable 5, while the other end of cable 5 is connected to a pantograph linkage 6 (Fig. 2), which in turn is connected to jaws 3. Closing and opening the handles 4a, 4b opens and closes the jaws 3, respectively, via cable 5 and linkage 6, as is conventional.
Actuator 7 is located at the proximal end 2b of housing 2. While shown as pivotally mounted on fixed handle 4b, actuator 7 can, if desired, be mounted instead on the proximal end 2b of housing 2. Cable 8 is connected to actuator 7 and is looped through bore 9 in collar 10. As paresently prefer3ced, lengths Via, 8b of cable ~ e~'tend from.
oo~.lar 10 through the interior 2c of housing 2 and are fastened to the underside of actuator !, as shy ~ Fig. ~_ In the emlaodimex~t of the forceps 1 sho~'n ~a the dw~.l~gs, collar ZO i.s secured, as by ksra~ing, to linkage ~ ;~d heaace to jays 3 (Fig. ~)a However, the li.ge ~ ~aY include an a.zitegraL portion (not shop) having a bore fog' receiving the Loop ~c of cable ~ o ~lterna-tive~.y, col~.~c 7.0 can be rotatably linked to cab~,e 8 by other means, such as by connecting a loop (riot showaa) at the distal erxd of ale ~
to a post (not sho~°a.) carried by collar 3.m-It is present~.y preferred to locate cable ~ ~Tithan sleeve 1~ , ~rhich is in turn located ~r~.thin hoping 2 9 ~o~tever, sleeve 14 care also be located on the outside of housing 2 (not shown) faith the cable 8 thus passing through s~~~Y~3 14 e~terTla~.J..y of hotl51.~1g 2 o Fu~hO~e, Sleeve g'4 can eve~a be omitted entirely, pith 'the cable $ simply being located inside or outside of housing 2e Depression of the actuator 7 to the dotted liras 20 positioxa sh~~rn ia~ ~'igo 1, as by thumb pressure, ~ailg apply a s~inginc3 force t~ cohar 10 via cable s and he$ce will swuag the ja~ts 3 from the normal position sho~m 3.a3 Fags 5, s~here~.n the jai are parallel. to the longitudinal axes of housing 2, to the dotted lie position (Fig> 5), wherein the jaws 3 are 25 transverse to the 3.os~gitud.inal axis of horsing ao Spring 13., whach is ia~ comgression, uses the j avs ~ to retuzn to the l2orraaJ. position.
Ire a prefasr~ed ea~b~t of the invex~tioxa, a suction cozsduit 1z having an internal valve ~3 co~nuta~.a~afc~s ~tith the g interior 2c of ~°~ousing z as will be dcscr~ed in detaii hereinafter. taThen conduct 1z is connected to a s~urce of suo~aoaa, tissue riear the distal. ~.nd of the. forcep. w3,13. be pulled by suction to the jars ~, arad saaalZer bits of tissue removed by jaws ~ can be aspirated from the suagica3. site ,p through the interior 2c of housing a~ ~'~ee l~ can be ~perd.ted t~ cOnts'~~. t~~ d~~Z'e~.' of SlSCtlon Or tt7 dl5COn31~Ct the anterior 2c of housing 2 from t'L~e source or suction, as desized. If desired, the forceps 3. can be made without suction conduit 3.z and 'va~.ve 13.
15 Jards 3 may take the form of auy useful tool. ~s shown, jaws 3 comprise forceps cups 3a, 3b, rahich may have serrated edges {~aot shown) if desired. Other useful tools include scissors. ~'aSPers and the ~.~.ke.
It is presently pregerred to use a p~aratoc~aph lix~cage 6 zo (~Fi~. z) comprising stationary pivot ~a car'ried by statioraa~ arm ~b ~~ig. s) , movable pivot 6c connected to the cable 5 (Fig. 5) and m~ea~ble pivots 6d °~at pivotally connect ja'as 3a, 3b to the mole 19 Hers 6e. a use of a pantoc~aPh ~.inkage to connect forceps jars to a 25 pull cable is conventional: other linkages may also be used.
~s best saei3 in Fag. ~s, asb each. fron a fitting haring a frustoconical portion E>~ that is brazed. or othertaise fast~nod to spsing ~.1. collar go has opposed arcuate portions 1.0a and oppose tabs lOb that are bent into the slot for~aod bet~reen arm ~b to restrain rotatic~x~al ~owe~ent of the collar 3.~ and to add axial streng~
~prixzg 3.~ is presv-fit into or is othertaise faster~to sleeve 1,5 (Fig. 6). ~s stated above, spring 1g is pr~essi,on» sleeve 1~ is welded to sleeve 15 by fillet ~.6 .0 Fig. 3). If desired, howeeer, sleeve ~5 can be o~3.tted" in which case cable 5 will sizapl~ pass th~rou~ka. housing z. If sleeve 15 is omi~aed, the ~Sroximal end of spsix~g 11 gay be ta,o~ wey~,ed or otherwise fastened to housing 2 so that the psoxi~al end of sprincg 11 is fused i~ position relative to 15 housing z.
To facilitate the swinging of jaws 3 by calale ~, the distal end 2a of housing ~ is provided with a trit~~c3ted arc 2d (Figs. 2 and 6) , while the distal er~d of slee~re 1&
te~.inates in an uptusred flange 3.4a fo~~. by bending 20 sleeve 1.4 aapwardZy and c~.ttisag the bent portion at an angle.
Flange ~.~a gay be brayed or othe~i.se fastened to the interior of ho~asiug 2. Flanges 2~a. and tr~cated arc 2d are prop~xtao~°aed to pers~it jaws z to swirag °ugh the desiged angle, such as up to about 135°~
zr Feferring to Fig. ', suction conduit 22 is received in and fastened t~ fitting 2~, as by brazing. Tie proximal end 2~'~~"~3~
of bous~.ng 2 is theta inserted into sore 21, with sleeves 14 and 5L~ parojecting dough bores 21. axed 22 and beyond fitting 2~. sleeve 14 is provide at its pxo2nd r~ith ~t upturned porti.ora i~b through ~hi~ projcable poxt3ons 8a, 8b. Pore 22 as pro~aded ~Ta.th a notch portion S3 to accommodate upturned po~°ti.oa 34b.
Dandle 4b is inse~ed into bore 22 ~it'ts sl.ee~e 1.~
passing through bore 3~ gn handle ~b and upturned pornora a~b being xeceieed by tine notob. 31. candle ~b is fastened t0 fitt3.ng ~~~ 35 ~9~ bra2.3~lga ~gill~.' ilpt12~1~d po~.C~11 a'~~ a3gd tkie proxamal end of sleeve L5, which projects slightly beyond handle 4b, are fastened to handle fib, als~ as by brazing. Cables 8 and ~ are threaded through their sleeves 3,~ and 15 and fastened to actuator 7 and haradl.e 4a, respect5.vely.
~a op~~a~lon, a Ganilula t310t sh~'f~Tdl, 7.5 ~.T1S~$'t~d Into the disc using the procedure described in United States Patent ~,~7~,4~8. .fit an appropriate time during the procedure, the forceps 1 i.s ~ asserted t~ax'ough the Gannula and 0 into the disc. Forceps ~. is advanced to the desired posit~,on and operated to grasp aa~d. remove tissue by aaeans of j aws 3 . F'o°~ceps a can be rotated about its longitudiaaal axa.s, of desired. here tissue t~ be xemflved is at a position remote from the longitudinal saris, and hence not accessihl.e to jaws 3 ~rhexa aaa their normal position, actuatog 7 can be depressed bqj the thumb of the seas hand holding the _g_ haxidlss Via, ~b to siring ' a3 tbrougb. the dasi~ed glue to ~eaoh the remote tissue site.
Actuator ~ oa~a bo s7.agh~~.y depressed or fully dapr~ss~d to the position s3ao~ ~ dottod lixae in dig. 1 de~as~da.rag can the d~sirad angle th~~ot2g~a wba.oh the ja6as are to be snag.
T~'t~Pd4'lgt~r, tb.6~'. v'SU~~~Pl Wgll I~aZIlta~.l~ $.~1~ ~~ttl3at~1 pleas to thegaby ~atain tl~,e 'ass 3 iz~ play. ~axidl.es ~a, ~b a~a thexi ope~ted to open and cloy the ~ a~as .
Thereafter, j aws 3 oan ba ~o~to anotti~g pos$'~~.on by .0 operation of actuator 7 aand/c~r by rotatir~ and/or sliding forceps 7. ~athi.ai the c33~a~~a.
~prixzg 3.~ is presv-fit into or is othertaise faster~to sleeve 1,5 (Fig. 6). ~s stated above, spring 1g is pr~essi,on» sleeve 1~ is welded to sleeve 15 by fillet ~.6 .0 Fig. 3). If desired, howeeer, sleeve ~5 can be o~3.tted" in which case cable 5 will sizapl~ pass th~rou~ka. housing z. If sleeve 15 is omi~aed, the ~Sroximal end of spsix~g 11 gay be ta,o~ wey~,ed or otherwise fastened to housing 2 so that the psoxi~al end of sprincg 11 is fused i~ position relative to 15 housing z.
To facilitate the swinging of jaws 3 by calale ~, the distal end 2a of housing ~ is provided with a trit~~c3ted arc 2d (Figs. 2 and 6) , while the distal er~d of slee~re 1&
te~.inates in an uptusred flange 3.4a fo~~. by bending 20 sleeve 1.4 aapwardZy and c~.ttisag the bent portion at an angle.
Flange ~.~a gay be brayed or othe~i.se fastened to the interior of ho~asiug 2. Flanges 2~a. and tr~cated arc 2d are prop~xtao~°aed to pers~it jaws z to swirag °ugh the desiged angle, such as up to about 135°~
zr Feferring to Fig. ', suction conduit 22 is received in and fastened t~ fitting 2~, as by brazing. Tie proximal end 2~'~~"~3~
of bous~.ng 2 is theta inserted into sore 21, with sleeves 14 and 5L~ parojecting dough bores 21. axed 22 and beyond fitting 2~. sleeve 14 is provide at its pxo2nd r~ith ~t upturned porti.ora i~b through ~hi~ projcable poxt3ons 8a, 8b. Pore 22 as pro~aded ~Ta.th a notch portion S3 to accommodate upturned po~°ti.oa 34b.
Dandle 4b is inse~ed into bore 22 ~it'ts sl.ee~e 1.~
passing through bore 3~ gn handle ~b and upturned pornora a~b being xeceieed by tine notob. 31. candle ~b is fastened t0 fitt3.ng ~~~ 35 ~9~ bra2.3~lga ~gill~.' ilpt12~1~d po~.C~11 a'~~ a3gd tkie proxamal end of sleeve L5, which projects slightly beyond handle 4b, are fastened to handle fib, als~ as by brazing. Cables 8 and ~ are threaded through their sleeves 3,~ and 15 and fastened to actuator 7 and haradl.e 4a, respect5.vely.
~a op~~a~lon, a Ganilula t310t sh~'f~Tdl, 7.5 ~.T1S~$'t~d Into the disc using the procedure described in United States Patent ~,~7~,4~8. .fit an appropriate time during the procedure, the forceps 1 i.s ~ asserted t~ax'ough the Gannula and 0 into the disc. Forceps ~. is advanced to the desired posit~,on and operated to grasp aa~d. remove tissue by aaeans of j aws 3 . F'o°~ceps a can be rotated about its longitudiaaal axa.s, of desired. here tissue t~ be xemflved is at a position remote from the longitudinal saris, and hence not accessihl.e to jaws 3 ~rhexa aaa their normal position, actuatog 7 can be depressed bqj the thumb of the seas hand holding the _g_ haxidlss Via, ~b to siring ' a3 tbrougb. the dasi~ed glue to ~eaoh the remote tissue site.
Actuator ~ oa~a bo s7.agh~~.y depressed or fully dapr~ss~d to the position s3ao~ ~ dottod lixae in dig. 1 de~as~da.rag can the d~sirad angle th~~ot2g~a wba.oh the ja6as are to be snag.
T~'t~Pd4'lgt~r, tb.6~'. v'SU~~~Pl Wgll I~aZIlta~.l~ $.~1~ ~~ttl3at~1 pleas to thegaby ~atain tl~,e 'ass 3 iz~ play. ~axidl.es ~a, ~b a~a thexi ope~ted to open and cloy the ~ a~as .
Thereafter, j aws 3 oan ba ~o~to anotti~g pos$'~~.on by .0 operation of actuator 7 aand/c~r by rotatir~ and/or sliding forceps 7. ~athi.ai the c33~a~~a.
Claims (10)
1. A forceps apparatus comprising:
(a) an elongated, rigid, tubular housing having a hollow interior comprising a bore with a longitudinal axis, said elongated, rigid, tubular housing having a proximal end portion and a distal end portion and a length which is nearly the entire length of said forceps apparatus;
(b) a pair of forceps jaws extending beyond said distal end portion of said elongated, rigid, tubular housing;
(c) manually-operable handle means positioned at said proximal end portion of said elongated, rigid, tubular housing for operating said jaws, each said handle means having a portion that is spaced laterally away from said longitudinal axis of said bore of said elongated, rigid, tubular housing;
(d) linkage means extending through said bore of said elongated, rigid, tubular housing between said handle means and said forcep jaws for transmitting force between said handle means and said forcep jaws during the operation of opening or closing of said forcep jaws;
(e) cable means having an end portion, positioned within said bore of said elongated, rigid, tubular housing for moving said forcep jaws from a first position wherein said forcep jaws extend in a direction which is parallel to, and generally aligned with, said longitudinal axis of said bore of said elongated, rigid, tubular housing, to a second position wherein said forcep jaws are positioned laterally away from said longitudinal axis of said bore of said elongated, rigid, tubular housing, said end portion of said cable being permanently attached to said forcep jaws for movement therewith;
(f) a manually-operable actuator means positioned at said proximal end of said elongated, rigid, tubular housing and connected to said cable means for operating said cable means;
(g) wherein said handle means and said actuator means are configured for operation by hands of a user; and further wherein:
(h) said linkage means further comprising biasing means which are rigidly supported at said distal end portion of said elongated, rigid, tubular housing, extending from said bore of said elongated, rigid, tubular housing for returning said forcep jaws to a position where they are aligned with said longitudinal axis of said bore of said elongated, rigid, tubular housing.
(a) an elongated, rigid, tubular housing having a hollow interior comprising a bore with a longitudinal axis, said elongated, rigid, tubular housing having a proximal end portion and a distal end portion and a length which is nearly the entire length of said forceps apparatus;
(b) a pair of forceps jaws extending beyond said distal end portion of said elongated, rigid, tubular housing;
(c) manually-operable handle means positioned at said proximal end portion of said elongated, rigid, tubular housing for operating said jaws, each said handle means having a portion that is spaced laterally away from said longitudinal axis of said bore of said elongated, rigid, tubular housing;
(d) linkage means extending through said bore of said elongated, rigid, tubular housing between said handle means and said forcep jaws for transmitting force between said handle means and said forcep jaws during the operation of opening or closing of said forcep jaws;
(e) cable means having an end portion, positioned within said bore of said elongated, rigid, tubular housing for moving said forcep jaws from a first position wherein said forcep jaws extend in a direction which is parallel to, and generally aligned with, said longitudinal axis of said bore of said elongated, rigid, tubular housing, to a second position wherein said forcep jaws are positioned laterally away from said longitudinal axis of said bore of said elongated, rigid, tubular housing, said end portion of said cable being permanently attached to said forcep jaws for movement therewith;
(f) a manually-operable actuator means positioned at said proximal end of said elongated, rigid, tubular housing and connected to said cable means for operating said cable means;
(g) wherein said handle means and said actuator means are configured for operation by hands of a user; and further wherein:
(h) said linkage means further comprising biasing means which are rigidly supported at said distal end portion of said elongated, rigid, tubular housing, extending from said bore of said elongated, rigid, tubular housing for returning said forcep jaws to a position where they are aligned with said longitudinal axis of said bore of said elongated, rigid, tubular housing.
2. The forceps according to claim 1, wherein said cable means extend from said manually-operable actuator means through said elongated, rigid, tubular housing to said forceps jaws.
3. The forceps according to claim 1 or claim 2, further comprising conduit means in communication with said hollow interior of said elongated, rigid, tubular housing for applying suction to said elongated, rigid, tubular housing, said elongated, rigid, tubular housing being open at said distal end.
4. A deflecting forceps apparatus comprising:
(a) a pair of handles pivotally connected to one another and pivotally movable relative to one another between open and closed positions;
(b) an elongated, rigid, tubular housing with a proximal end portion and a distal end portion and a length which is nearly the entire length of said forceps apparatus, a hollow interior comprising a bore having a longitudinal axis and a length which is nearly the entire length of said forceps apparatus, said elongated, rigid, tubular housing being fixed at its proximal end portion to, and extending from, one of said handles and terminating in said distal end portion;
(c) a pair of forceps jaws positioned at said distal end portion;
(d) linking means having a longitudinally-extending axis extending through said bore of said elongated, rigid, tubular housing said linking means having a proximal end and a distal end, said linking means being connected at its proximal end to at least one of said handles, and being connected at its distal end to said pair of forcep jaws said linking means having means for moving said forcep jaws between a first open position and a second closed position responsive to a movement of said handles relative to one another between said positions, by a hand of a user thereby to operate said forcep jaws;
(e) an actuator cable means having a longitudinally extending axis which is parallel to said bore of said elongated, rigid, tubular housing, said actuator cable means having a proximal end and a distal end; and (f) actuator means pivotally mounted at said proximal end portion of said elongated, rigid, tubular housing and connected to said proximal end of said actuator cable means, said distal end of said actuator cable means being operatively associated with said forceps jaws such that manually pivoting of said actuator means causes said actuator cable means to swing said forceps jaws from a first aligned position, wherein said forceps jaws are parallel to the longitudinal axis of said bore of said elongated, rigid, tubular housing, to a second offset position, wherein said forceps jaws are transverse to said longitudinal axis of said bore of said elongated, rigid, tubular housing; further Wherein:
(g) said linking means includes a spring which is configured for urging said forceps jaws to said first position, said spring having a distal end which is connected to said forceps jaws for movement therewith as said forceps jaws swing between said positions, and a proximal end that is fixed with respect to said housing.
(a) a pair of handles pivotally connected to one another and pivotally movable relative to one another between open and closed positions;
(b) an elongated, rigid, tubular housing with a proximal end portion and a distal end portion and a length which is nearly the entire length of said forceps apparatus, a hollow interior comprising a bore having a longitudinal axis and a length which is nearly the entire length of said forceps apparatus, said elongated, rigid, tubular housing being fixed at its proximal end portion to, and extending from, one of said handles and terminating in said distal end portion;
(c) a pair of forceps jaws positioned at said distal end portion;
(d) linking means having a longitudinally-extending axis extending through said bore of said elongated, rigid, tubular housing said linking means having a proximal end and a distal end, said linking means being connected at its proximal end to at least one of said handles, and being connected at its distal end to said pair of forcep jaws said linking means having means for moving said forcep jaws between a first open position and a second closed position responsive to a movement of said handles relative to one another between said positions, by a hand of a user thereby to operate said forcep jaws;
(e) an actuator cable means having a longitudinally extending axis which is parallel to said bore of said elongated, rigid, tubular housing, said actuator cable means having a proximal end and a distal end; and (f) actuator means pivotally mounted at said proximal end portion of said elongated, rigid, tubular housing and connected to said proximal end of said actuator cable means, said distal end of said actuator cable means being operatively associated with said forceps jaws such that manually pivoting of said actuator means causes said actuator cable means to swing said forceps jaws from a first aligned position, wherein said forceps jaws are parallel to the longitudinal axis of said bore of said elongated, rigid, tubular housing, to a second offset position, wherein said forceps jaws are transverse to said longitudinal axis of said bore of said elongated, rigid, tubular housing; further Wherein:
(g) said linking means includes a spring which is configured for urging said forceps jaws to said first position, said spring having a distal end which is connected to said forceps jaws for movement therewith as said forceps jaws swing between said positions, and a proximal end that is fixed with respect to said housing.
5. The deflecting forceps according to claim 4, wherein said distal end portion of said elongated, rigid, tubular housing has a truncated arcuate opening to facilitate the swinging of said forceps jaws from said first open position to said second closed position.
6. The deflecting forceps according to claim 4 or claim 5, further comprising conduit means secured to said tubular housing in communication with the interior thereof for applying suction to said elongated, rigid, tubular housing, said elongated, rigid, tubular housing being open at said distal end.
7. The deflecting forceps according to claim 4, claim 5 or claim 6, wherein said linking means of said forcep jaws comprises: a sleeve in said housing in fixed relation thereto; a pantograph linkage connected to said proximal end of said forceps jaws; and a forceps jaws cable having a distal end and a proximal end within said sleeve; said distal end of said forcep jaws cable being connected to said pantograph linkage, and said proximal end of said forcep jaws cable being connected to the other of said handles.
8. The deflecting forceps according to claim 4, claim 5 or claim 6, wherein said linking means of said forceps jaws comprises a sleeve in said housing in fixed relation thereto, said sleeve having a distal and and a proximal end, said distal end of said sleeve being fastened to said proximal end of said spring, and a forceps jaw cable within said sleeve, said forceps jaw cable having a distal end and a proximal end, said distal end of said forceps jaw cable being operatively associated with said forceps jaws, and the proximal end of said forceps jaw cable being connected to said movable handle.
9. The deflecting forceps according to any one of claims 4 to 8, further comprising an actuator cable sleeve in said housing in fixed relation thereto, said actuator cable means passing through said actuator cable sleeve.
10. A forceps apparatus comprising:
(a) an elongated, rigid, tubular housing having a bore With a longitudinal linear axis, said elongated, rigid, tubular housing having a proximal end and a distal end and a length which is nearly the entire length of said forceps apparatus;
(b) a pair of forcep jaws extending beyond said bore of said elongated, rigid, tubular housing at said distal end of said elongated, rigid, tubular housing;
(c) a pair of manually-operable handles positioned at said proximal end of said elongated, rigid, tubular housing for operating said forcep jaws, at least one of said handles being rigidly connected to said proximal end of said elongated, rigid, tubular housing, and one of the handles being movable relative to the other handle for operating said forcep jaws responsive to said movement, each said handle having a portion that is spaced laterally away from said longitudinal linear axis of said elongated, rigid, tubular housing;
(d) a linkage member extending through said bore between said handles and said forcep jaws for transmitting force between said handles and said forcep jaws during the operation of opening or closing said forcep jaws, wherein said forcep jaws open and close when said handles are moved relative to one another;
(e) a cable having an end portion, positioned within said bore of said elongated, rigid, tubular housing for moving said forcep jaws from a first position, wherein said forcep jaws extend in a direction which is parallel to, and generally aligned with, said longitudinal axis of said bore of said elongated, rigid, tubular housing, to a second position, wherein said forcep jaws are positioned laterally away from said longitudinal axis of said bore of said elongated, rigid, tubular housing, said end portion of said cable being permanently attached to said forcep jaws for movement therewith;
(f) said forcep jaws being supported upon a coil spring which is rigidly supported at said distal end of said elongated, rigid, tubular housing and extending from said bore of said elongated, rigid, tubular housing for returning said forcep jaws to a position which is aligned with said longitudinal axis bore of said elongated, rigid, tubular housing, wherein tension, which is applied to said cable, flexes said coil spring to move said forcep jaws laterally away from said longitudinal linear axis of said bore of said elongated, rigid, tubular housing; and (g) a manually-operable actuator positioned at said proximal end of said elongated rigid tubular housing and connected to said cable for operating said cable to flex said spring and to move said forcep jaws laterally.
(a) an elongated, rigid, tubular housing having a bore With a longitudinal linear axis, said elongated, rigid, tubular housing having a proximal end and a distal end and a length which is nearly the entire length of said forceps apparatus;
(b) a pair of forcep jaws extending beyond said bore of said elongated, rigid, tubular housing at said distal end of said elongated, rigid, tubular housing;
(c) a pair of manually-operable handles positioned at said proximal end of said elongated, rigid, tubular housing for operating said forcep jaws, at least one of said handles being rigidly connected to said proximal end of said elongated, rigid, tubular housing, and one of the handles being movable relative to the other handle for operating said forcep jaws responsive to said movement, each said handle having a portion that is spaced laterally away from said longitudinal linear axis of said elongated, rigid, tubular housing;
(d) a linkage member extending through said bore between said handles and said forcep jaws for transmitting force between said handles and said forcep jaws during the operation of opening or closing said forcep jaws, wherein said forcep jaws open and close when said handles are moved relative to one another;
(e) a cable having an end portion, positioned within said bore of said elongated, rigid, tubular housing for moving said forcep jaws from a first position, wherein said forcep jaws extend in a direction which is parallel to, and generally aligned with, said longitudinal axis of said bore of said elongated, rigid, tubular housing, to a second position, wherein said forcep jaws are positioned laterally away from said longitudinal axis of said bore of said elongated, rigid, tubular housing, said end portion of said cable being permanently attached to said forcep jaws for movement therewith;
(f) said forcep jaws being supported upon a coil spring which is rigidly supported at said distal end of said elongated, rigid, tubular housing and extending from said bore of said elongated, rigid, tubular housing for returning said forcep jaws to a position which is aligned with said longitudinal axis bore of said elongated, rigid, tubular housing, wherein tension, which is applied to said cable, flexes said coil spring to move said forcep jaws laterally away from said longitudinal linear axis of said bore of said elongated, rigid, tubular housing; and (g) a manually-operable actuator positioned at said proximal end of said elongated rigid tubular housing and connected to said cable for operating said cable to flex said spring and to move said forcep jaws laterally.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US73722391A | 1991-07-29 | 1991-07-29 | |
| US737,223 | 1991-07-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2074739A1 CA2074739A1 (en) | 1993-01-30 |
| CA2074739C true CA2074739C (en) | 2003-06-24 |
Family
ID=24963068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002074739A Expired - Lifetime CA2074739C (en) | 1991-07-29 | 1992-07-28 | Deflecting forceps |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5354311A (en) |
| EP (1) | EP0526115B1 (en) |
| JP (1) | JPH05245153A (en) |
| AT (1) | ATE150954T1 (en) |
| CA (1) | CA2074739C (en) |
| DE (1) | DE69218688T2 (en) |
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- 1992-07-23 EP EP92306770A patent/EP0526115B1/en not_active Expired - Lifetime
- 1992-07-23 AT AT92306770T patent/ATE150954T1/en not_active IP Right Cessation
- 1992-07-23 DE DE69218688T patent/DE69218688T2/en not_active Expired - Lifetime
- 1992-07-28 CA CA002074739A patent/CA2074739C/en not_active Expired - Lifetime
- 1992-07-29 JP JP4202548A patent/JPH05245153A/en not_active Withdrawn
-
1993
- 1993-09-08 US US08/117,986 patent/US5354311A/en not_active Expired - Lifetime
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| DE69218688T2 (en) | 1997-07-10 |
| CA2074739A1 (en) | 1993-01-30 |
| JPH05245153A (en) | 1993-09-24 |
| US5354311A (en) | 1994-10-11 |
| DE69218688D1 (en) | 1997-05-07 |
| EP0526115A1 (en) | 1993-02-03 |
| EP0526115B1 (en) | 1997-04-02 |
| ATE150954T1 (en) | 1997-04-15 |
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