US20120193392A1 - Stapler powered auxiliary device - Google Patents
Stapler powered auxiliary device Download PDFInfo
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- US20120193392A1 US20120193392A1 US13/442,097 US201213442097A US2012193392A1 US 20120193392 A1 US20120193392 A1 US 20120193392A1 US 201213442097 A US201213442097 A US 201213442097A US 2012193392 A1 US2012193392 A1 US 2012193392A1
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- material dispenser
- cavity
- assembly
- roller
- dispenser according
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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
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00491—Surgical glue applicators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
- A61B2017/00398—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like using powered actuators, e.g. stepper motors, solenoids
-
- 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
- A61B2017/00831—Material properties
- A61B2017/00884—Material properties enhancing wound closure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00889—Material properties antimicrobial, disinfectant
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00893—Material properties pharmaceutically effective
Definitions
- the present disclosure relates to auxiliary devices for use with surgical staplers. More particularly, the present disclosure relates to a powered materials dispenser designed to compress a capsule of materials and to inject the materials between the jaws of the surgical stapler.
- tissue being operated on it is often advantageous to add or supply various materials to the tissues being operated on.
- healing or sealing materials such as antimicrobial materials or hemostatic materials
- Adhesives may be applied to the tissues and buttress materials may be used to strengthen the tissue connections.
- the buttress materials are mounted on the jaws of the stapling instrument and stapled to the tissues to reinforce the staple lines and prevent tearing of the stapled tissue. It is often desirable to apply adhesives and/or sealants in conjunction with the buttress materials to better reinforce the staple lines in the tissues and assist in sealing the staple holes.
- tissue being stapled it is preferable to add these materials to the tissues being stapled at the time of the stapling of the tissues.
- This typically requires an additional device or materials dispenser, for example, a syringe, to be positioned within the area being operated on, in addition to the stapling apparatus being used, thereby requiring more operating space.
- an additional, independent materials dispenser requires an additional set of hands to manipulate and operate it while at the same time reducing visibility of the operating area to the surgeons involved.
- auxiliary device in the form of a materials dispenser for integral use with a surgical stapler device. It would further be desirable to provide a powered materials dispenser for use with a surgical stapler device and operable concurrently with the surgical stapler.
- an auxiliary materials dispenser for use in a surgical stapler device which generally includes a nozzle assembly including a nozzle body defining a cavity and having a discharge port.
- a compression assembly is movably mounted within the cavity of the nozzle body and has a compression roller.
- the compression assembly is movable between a proximal position wherein the compression roller is spaced from the discharge port to a distal position wherein the compression roller is substantially adjacent the discharge port.
- a drive mechanism is included and is operable to move the compression assembly between the proximal and distal positions such that the compression roller of the compression assembly urges material contained within the cavity toward the discharge port as the compression assembly moves between the proximal and distal positions.
- the compression assembly includes a drive block engagable with the drive mechanism.
- a clevis arm having first and second ends, is pivotally mounted to the drive block at the first end.
- a spindle is mounted to the clevis arm at the second end and the compression roller is mounted on the spindle.
- a spring is attached to the clevis arm such that the spring biases the compression roller into engagement with an inner surface of the nozzle body.
- the nozzle body includes upper and lower inner surfaces which are spaced further apart at their respective proximal ends and closer together at their respective distal ends such that the upper and lower inner surfaces taper towards the discharge port.
- the compression roller engages the upper inner surface as it moves between the proximal and distal positions.
- the nozzle assembly includes a drive nut affixed within the nozzle body and defining a threaded bore.
- the drive mechanism includes a drive screw rotatably mounted within the threaded bore of the drive nut. A distal end of the screw is engagable with the compression assemble to move the compression assembly within the nozzle body as the drive screw is rotated within the drive nut.
- the drive mechanism further includes a motor engagable with the drive screw to rotate the drive screw within the drive nut.
- the drive screw is mounted on a distal end of a cable and a proximal end of the cable is affixed to the motor.
- the compression roller is formed of an incompressible material. In an alternative embodiment, the compression roller is formed of a compressible material.
- the material to be dispensed is contained within a capsule positioned within the cavity of the nozzle body such that the compression roller compresses the capsule to break the capsule as the compression roller moves between the proximal and distal positions.
- the capsule has a wall thickness which is greater at the proximal end than at the distal end to create a weakened region at the distal end adjacent the discharge port.
- a surgical stapler device including a handle having a first jaw containing a staple containing cartridge and a second jaw movable relative to the first jaw and having an anvil surface.
- a nozzle assembly is mounted on one of the first and jaws.
- the nozzle assembly includes a nozzle body defining a cavity and having a discharge port open to a face of one of the first and second jaws.
- a compression assembly is movably mounted within the cavity of the nozzle body and includes a compression roller.
- the compression roller is movable between a proximal position spaced from the discharge port to a distal position substantially adjacent the discharge port.
- a drive mechanism is also provided and is operable to move the compression roller between the proximal and distal positions such that the compression roller urges material contained within the cavity toward the discharge port as the compression roller moves between the proximal and distal positions.
- FIG. 1 is a perspective view of one embodiment of a materials dispenser installed in a surgical stapler device
- FIG. 2 is a side view, partially shown in section, of the materials dispenser
- FIG. 3 is a perspective view of the compressing mechanism of the materials dispenser
- FIG. 4 is a side view, partially shown in section, of a nozzle assembly of the materials dispenser
- FIG. 5 is a side view, partially shown in section, of the nozzle assembly of the materials dispenser during initial compression of a materials capsule;
- FIG. 6 is a side view, partially shown in section, of the nozzle assembly of the materials dispenser during final compression of the materials capsule;
- FIG. 7 is a perspective view of one embodiment a materials capsule for use in the materials dispenser
- FIG. 8 is a side view, shown in section, of the materials capsule of FIG. 7 ;
- FIG. 9 is a side view, partially shown in section, of an alternate embodiment of a nozzle assembly of a materials dispenser
- FIG. 10 is a side view, partially shown in section, of the nozzle assembly of FIG. 9 during initial compression of a materials capsule.
- FIG. 11 is a side view, partially shown in section, of the nozzle assembly of FIG. 9 during final compression of the materials capsule.
- proximal refers to that part or component closer to the user or operator, i.e. surgeon or physician
- distal refers to that part or component further away from the user.
- an auxiliary device in the form of a materials dispenser 10 for use in a surgical stapler 12 .
- Materials dispenser 10 may be assembled integral to the associated surgical stapler 12 or may be provided separately and affixed to the desired surgical stapler 12 prior to surgery. Additionally, materials dispenser 10 is configured for use with various types of surgical staplers, such as, for example, endoscopic or open surgery surgical staplers, as well as linear and circular surgical staplers of the open or endoscopic variety.
- surgical stapler 12 is of the open surgery type including a handle 14 having a fixed lower jaw 16 extending distally from handle 14 .
- a movable upper jaw 18 is movable mounted to handle 14 and is movable from an open position spaced apart from lower jaw 16 to a closed position substantially adjacent lower jaw 16 .
- a trigger 20 is mounted on handle 14 and is operable to move upper jaw 18 between the open and closed positions relative to lower jaw 16 .
- Surgical stapling device 12 further includes an actuation mechanism 22 , positioned in handle 14 , which is operable with trigger 20 to eject staples (not shown) out of a staple containing cartridge 24 , positioned in lower jaw 16 , and into an anvil face 26 in upper jaw 18 .
- the tissue to be stapled is captured between anvil face 26 on upper jaw 16 and a cartridge face 28 on staple containing cartridge 24 positioned in lower jaw 16 .
- Materials dispenser 10 is provided to inject media or material into the tissue receiving space between lower and upper jaws 16 and 18 , respectively, to as to apply material “M” to tissue captured therebetween.
- material M refers to any treatment or other material applied to tissues, or associated support structure, during surgery, such as, for example, antimicrobial, anticoagulant, hemostatic, adhesive, dye or indicating materials, etc. and may take the form of liquids, foams, atomized spray.
- Materials dispenser 10 generally includes a nozzle assembly 30 having a nozzle body 32 for receipt of material M and a discharge port 34 for passage of material M out of nozzle assembly 30 .
- nozzle assembly 30 is affixed to, or inserted within one of lower and upper jaws 16 and 18 such that discharge port 34 is open to the space defined between lower and upper jaws 16 and 18 , respectively.
- discharge port 34 is provided on lower jaw 16 and extends through staple containing cartridge 24 .
- Discharge. port 34 is generally rectangular and is oriented substantially perpendicular to a long axis of staple containing cartridge 24 so as to spray material M across cartridge face 28 .
- Materials dispenser 10 additionally includes a power source or motor 36 to operate nozzle assembly 30 .
- Motor 36 is provided on handle 14 of surgical stapler 12 .
- Motor 36 is a small DC motor powered by primary or secondary batteries.
- Various switches may be provided on surgical stapler 12 to actuate motor 36 .
- the actuation switch may be provided remotely from surgical stapler 12 , such as, a foot switch, etc.
- a drive cable 38 extends between motor 36 and nozzle assembly 30 and allows motor 36 to be provided remotely from nozzle assembly 30 either on handle 14 of surgical stapler 12 as described herein or remotely off of surgical stapler 12 in order to lighten the weight of surgical stapler 12 for ease of use.
- a threaded drive screw 40 is provided at a distal end 42 of drive cable 38 .
- Threaded drive screw 40 engages a threaded nut 44 positioned within a proximal section 46 of nozzle body 32 such that as drive cable 38 is rotated by drive motor 36 , threaded drive screw 40 is rotated within threaded nut 44 to move threaded drive screw 40 within nozzle body 32 .
- Threaded nut 44 can be integral with nozzle body 32 or can be fixed therein by conventional methods such as, for example, welding, gluing, etc.
- Nozzle body 32 also includes a tapered distal section 48 extending distally from proximal section 46 and defining a distal space or cavity 50 .
- Tapered distal section 48 includes an upper wall 52 and a lower wall 54 which have upper and lower inner surfaces 56 and 58 , respectively. While not specifically shown in FIG. 2 , it is obvious that nozzle also includes side wall extending between upper and lower walls 52 and 54 (See FIG. 1 ). Upper and lower walls 52 and 54 taper distally towards each other to define discharge port 34 at a distal end 60 of distal tapered section 48 .
- upper and lower walls 52 and 54 The spacing of upper and lower walls 52 and 54 is greatest at a point 62 at the junction of proximal and distal sections 46 and 48 , respectively, and closest at discharge port 34 to facilitate squeezing or forcing a source, such as capsule 64 , of mater M towards and out of discharge port 34 .
- a distal end 68 of threaded drive screw 40 is configured to engage and move a compression assembly 70 within tapered distal section 48 .
- Compression assembly 70 is provided to compress and force material M contained within capsule 64 toward and out of discharge port 34 .
- Compression assembly 70 generally includes a drive block 72 , engageable with distal end 60 of threaded drive screw, and a pair of upper and lower arms 74 and 76 , respectively, extending distally from drive block 72 .
- First and second compression rollers 78 and 80 are mounted on upper and lower arms 74 and 76 , respectively. In a specific embodiment, the lengths of first and second compression rollers 78 and 80 are substantially equal to the length of capsule 64 to allow for complete evacuation of capsule 64 .
- First and second compression rollers 78 and 80 are relatively inelastic and may be formed from various materials, such as, for example, hard plastics, stainless steel, ceramic, etc. First and second compression rollers 78 and 80 engage upper and lower inner surfaces 56 and 58 and are moved from a greatest spacing adjacent point 62 of tapered distal section 48 to a closest spacing adjacent discharge port 34 as described herein below.
- upper arm 74 comprises a pair of upper arms 74 a and 74 b supporting first compression roller 78 and lower arm 76 comprises a pair of lower arms 76 a and 76 b supporting second compression roller 80 .
- a shaft 82 extends through drive block 72 to rotatably support upper arms 74 a and 74 b at proximal ends 84 a and 84 b and lower arms 76 a and 76 b at proximal ends 86 a and 86 b.
- An upper spindle 88 extends between distal ends 90 a and 90 b of upper arms 74 a and 74 b and rotatably supports first compression roller 78 .
- First compression roller may be rotatable about upper spindle 88 or affixed to upper spindle 88 such that upper spindle is mounted for rotation within distal ends 90 a and 90 b.
- a lower spindle 92 is mounted between distal ends 94 a and 94 b of lower arms 76 a and 76 b for rotatable support of second compression roller 80 .
- compression assembly 70 is provided with a spring 96 having a center point 98 mounted on shaft 82 and connected to upper arm 74 b at an upper point 100 and lower arm 76 b at a lower point 102 .
- material dispenser 10 is mounted on surgical stapling device 12 such that discharge port 34 extends through fixed lower jaw 16 .
- Trigger 12 is actuated to cause movable upper jaw 18 to move adjacent fixed lower jaw 16 .
- Continued movement of trigger 12 causes staples (not shown) to be ejected from staple cartridge 24 and toward anvil face 26 .
- actuation of trigger 12 also operates to activate drive motor 36 thereby rotating drive cable 38 .
- other switches or triggering mechanisms such as foot pedals, etc. may be provided to actuate drive motor 36 .
- distal end 42 of drive cable 38 engages drive block 72 to move compression assembly 70 distally within distal section 48 of nozzle body 32 .
- Distal movement of compression assembly 70 causes first and second arms 74 and 76 to move distally causing first and second compression rollers 78 and 80 to ride along tapered upper and lower inner surfaces 56 and 58 , respectively.
- first and second arms pivot about shaft 82 and spring 96 biases first and second compression rollers 78 and 80 into engagement with upper and lower inner surfaces 56 and 58 , respectively, ( FIG. 3 ).
- first and second compression rollers 78 and 80 move distally from the initial position shown in FIG. 4 to an intermediary position shown in FIG. 5 , first and second compression roller engage and compress capsule 64 causing capsule 64 to break at its distal end 104 and spray or otherwise eject material M into the space between fixed lower jaw 16 and movable upper jaw 18 as shown in FIG. 1 .
- capsule 64 is substantially completely compressed between first and second compression rollers and substantially discharged of material M through discharge port 34 .
- capsule 64 is formed from compressible and breakable or rupturable material and is provided to contain material M prior to use.
- Capsule 64 has a wall 106 configured to contain material M.
- wall 106 is formed with a smaller thickness at a distal end 108 and a larger thickness at a proximal end 110 such that, upon compression, wall 106 will break or burst at the distal end 108 which is position adjacent discharge port 34 of nozzle body 32 .
- first and second compression rollers 112 and 114 for use in compression assembly 70 .
- first and second compression rollers are formed of a compressible material, such as, for example, foam, soft rubber, etc.
- First and second compression rollers form a part of compression assembly 70 and are rotatably mounted on upper and lower arms 74 and 76 , respectively, substantially as described herein above with regard to first and second compression rollers 78 and 80 .
- first and second compression rollers 112 and 114 are substantially circular in cross-section and touch to completely enclose cavity 50 and thus capsule 64 contained therein. This allows materials dispenser to be used with capsule 64 or with a lose material not contained within capsule 64 .
- first and second compression rollers 112 and 114 move distally along upper and lower inner surfaces 56 and 58 , respectively to compress capsule 64 , or other material contained within cavity 50 , toward discharge port 34 .
- first and second compression rollers 112 and 114 move distally and against each other, they conform to the decreasing space available between upper and lower inner surfaces 56 and 58 and assume an oval shape or configuration.
- first and second compression rollers 112 and 114 are compressed within the confines of cavity 50 to assume even more oval shapes. In this manner the use of compressible first and second compression rollers 112 and 114 allow first and second compression rollers 112 and 114 to completely seal cavity 50 from the proximal section 46 ( FIG. 2 ) of nozzle body 32 allowing the use of materials M not provided in capsule 64 or otherwise contained.
- the disclose compression assembly may need only contain a single compression roller.
- the disclosed materials dispenser may utilize other methods of moving the compression assembly distally within the nozzle assembly, such as, for example, linear moving cables, pneumatics, etc.
- the disclosed discharge nozzle of the nozzle assembly has been illustrated as being oriented perpendicular to the long axis of the staple containing cartridge, it may alternatively be oriented parallel to the long axis of the staple containing cartridge and discharge material into a knife slot associated with the staple containing cartridge. 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.
Abstract
There is disclosed an auxiliary device for injecting material between the jaws of a surgical stapler. The auxiliary device includes a nozzle assembly having a discharge port and a compression assembly having at least one compression roller for forcing material out of the discharge port. The disclosed compression rollers may be formed of an incompressible or compressible material. The auxiliary device also includes a drive mechanism for moving the compression assembly within a nozzle body of the nozzle assembly. There is also disclosed a rupturable capsule for retaining material to be dispensed.
Description
- The present application is a continuation of U.S. application Ser. No. of 12/958,707, filed Dec. 2, 2010, which is a continuation of U.S. application Ser. No. 12/195,476, filed Aug. 21, 2008, which claims the benefit of and priority to U.S. Provisional Application Ser. No. 60/995,004 filed Sep. 24, 2007, the entire content of which being incorporated herein by reference.
- 1. Technical Field
- The present disclosure relates to auxiliary devices for use with surgical staplers. More particularly, the present disclosure relates to a powered materials dispenser designed to compress a capsule of materials and to inject the materials between the jaws of the surgical stapler.
- 2. Background of Related Art
- During certain medical procedures it is often advantageous to add or supply various materials to the tissues being operated on. For example, during stapling of tissue, it may be desirable to place healing or sealing materials, such as antimicrobial materials or hemostatic materials, between the tissues being stapled to facilitate healing, etc. In some surgeries, methods of assisting in joining and/or strengthening the tissues being stapled may be desired. Adhesives may be applied to the tissues and buttress materials may be used to strengthen the tissue connections. The buttress materials are mounted on the jaws of the stapling instrument and stapled to the tissues to reinforce the staple lines and prevent tearing of the stapled tissue. It is often desirable to apply adhesives and/or sealants in conjunction with the buttress materials to better reinforce the staple lines in the tissues and assist in sealing the staple holes.
- It is preferable to add these materials to the tissues being stapled at the time of the stapling of the tissues. This typically requires an additional device or materials dispenser, for example, a syringe, to be positioned within the area being operated on, in addition to the stapling apparatus being used, thereby requiring more operating space. In addition, the use of an additional, independent materials dispenser requires an additional set of hands to manipulate and operate it while at the same time reducing visibility of the operating area to the surgeons involved.
- Therefore, it would be desirable to provide an auxiliary device in the form of a materials dispenser for integral use with a surgical stapler device. It would further be desirable to provide a powered materials dispenser for use with a surgical stapler device and operable concurrently with the surgical stapler.
- There is disclosed an auxiliary materials dispenser for use in a surgical stapler device which generally includes a nozzle assembly including a nozzle body defining a cavity and having a discharge port. A compression assembly is movably mounted within the cavity of the nozzle body and has a compression roller. The compression assembly is movable between a proximal position wherein the compression roller is spaced from the discharge port to a distal position wherein the compression roller is substantially adjacent the discharge port. A drive mechanism is included and is operable to move the compression assembly between the proximal and distal positions such that the compression roller of the compression assembly urges material contained within the cavity toward the discharge port as the compression assembly moves between the proximal and distal positions.
- The compression assembly includes a drive block engagable with the drive mechanism. A clevis arm, having first and second ends, is pivotally mounted to the drive block at the first end. A spindle is mounted to the clevis arm at the second end and the compression roller is mounted on the spindle. In one embodiment, a spring is attached to the clevis arm such that the spring biases the compression roller into engagement with an inner surface of the nozzle body.
- The nozzle body includes upper and lower inner surfaces which are spaced further apart at their respective proximal ends and closer together at their respective distal ends such that the upper and lower inner surfaces taper towards the discharge port. The compression roller engages the upper inner surface as it moves between the proximal and distal positions.
- The nozzle assembly includes a drive nut affixed within the nozzle body and defining a threaded bore. The drive mechanism includes a drive screw rotatably mounted within the threaded bore of the drive nut. A distal end of the screw is engagable with the compression assemble to move the compression assembly within the nozzle body as the drive screw is rotated within the drive nut. The drive mechanism further includes a motor engagable with the drive screw to rotate the drive screw within the drive nut.
- In one embodiment, the drive screw is mounted on a distal end of a cable and a proximal end of the cable is affixed to the motor.
- In a particular embodiment, the compression roller is formed of an incompressible material. In an alternative embodiment, the compression roller is formed of a compressible material.
- In one embodiment the material to be dispensed is contained within a capsule positioned within the cavity of the nozzle body such that the compression roller compresses the capsule to break the capsule as the compression roller moves between the proximal and distal positions. In a specific embodiment, the capsule has a wall thickness which is greater at the proximal end than at the distal end to create a weakened region at the distal end adjacent the discharge port.
- There is further disclosed a surgical stapler device including a handle having a first jaw containing a staple containing cartridge and a second jaw movable relative to the first jaw and having an anvil surface. A nozzle assembly is mounted on one of the first and jaws. The nozzle assembly includes a nozzle body defining a cavity and having a discharge port open to a face of one of the first and second jaws. A compression assembly is movably mounted within the cavity of the nozzle body and includes a compression roller. The compression roller is movable between a proximal position spaced from the discharge port to a distal position substantially adjacent the discharge port. A drive mechanism is also provided and is operable to move the compression roller between the proximal and distal positions such that the compression roller urges material contained within the cavity toward the discharge port as the compression roller moves between the proximal and distal positions.
- Various embodiments of the presently disclosed materials dispenser for use with a surgical stapling device are disclosed herein with reference to the drawings, wherein:
-
FIG. 1 is a perspective view of one embodiment of a materials dispenser installed in a surgical stapler device; -
FIG. 2 is a side view, partially shown in section, of the materials dispenser; -
FIG. 3 is a perspective view of the compressing mechanism of the materials dispenser; -
FIG. 4 is a side view, partially shown in section, of a nozzle assembly of the materials dispenser; -
FIG. 5 is a side view, partially shown in section, of the nozzle assembly of the materials dispenser during initial compression of a materials capsule; -
FIG. 6 is a side view, partially shown in section, of the nozzle assembly of the materials dispenser during final compression of the materials capsule; -
FIG. 7 is a perspective view of one embodiment a materials capsule for use in the materials dispenser; -
FIG. 8 is a side view, shown in section, of the materials capsule ofFIG. 7 ; -
FIG. 9 is a side view, partially shown in section, of an alternate embodiment of a nozzle assembly of a materials dispenser; -
FIG. 10 is a side view, partially shown in section, of the nozzle assembly ofFIG. 9 during initial compression of a materials capsule; and -
FIG. 11 is a side view, partially shown in section, of the nozzle assembly ofFIG. 9 during final compression of the materials capsule. - Embodiments of the presently disclosed auxiliary materials dispenser will now be described in detail with reference to the drawings wherein like numerals designate identical or corresponding elements in each of the several views. As is common in the art, the term ‘proximal” refers to that part or component closer to the user or operator, i.e. surgeon or physician, while the term “distal” refers to that part or component further away from the user.
- Referring to
FIG. 1 , there is disclosed one embodiment of an auxiliary device in the form of amaterials dispenser 10 for use in asurgical stapler 12. Materials dispenser 10 may be assembled integral to the associatedsurgical stapler 12 or may be provided separately and affixed to the desiredsurgical stapler 12 prior to surgery. Additionally,materials dispenser 10 is configured for use with various types of surgical staplers, such as, for example, endoscopic or open surgery surgical staplers, as well as linear and circular surgical staplers of the open or endoscopic variety. - In the present disclosure,
surgical stapler 12 is of the open surgery type including ahandle 14 having a fixedlower jaw 16 extending distally fromhandle 14. A movableupper jaw 18 is movable mounted to handle 14 and is movable from an open position spaced apart fromlower jaw 16 to a closed position substantially adjacentlower jaw 16. Atrigger 20 is mounted onhandle 14 and is operable to moveupper jaw 18 between the open and closed positions relative tolower jaw 16.Surgical stapling device 12 further includes anactuation mechanism 22, positioned inhandle 14, which is operable withtrigger 20 to eject staples (not shown) out of astaple containing cartridge 24, positioned inlower jaw 16, and into ananvil face 26 inupper jaw 18. The tissue to be stapled is captured betweenanvil face 26 onupper jaw 16 and acartridge face 28 onstaple containing cartridge 24 positioned inlower jaw 16. - Materials dispenser 10 is provided to inject media or material into the tissue receiving space between lower and
upper jaws nozzle assembly 30 having anozzle body 32 for receipt of material M and adischarge port 34 for passage of material M out ofnozzle assembly 30. As shown,nozzle assembly 30 is affixed to, or inserted within one of lower andupper jaws discharge port 34 is open to the space defined between lower andupper jaws port 34 is provided onlower jaw 16 and extends throughstaple containing cartridge 24. Discharge.port 34 is generally rectangular and is oriented substantially perpendicular to a long axis ofstaple containing cartridge 24 so as to spray material M acrosscartridge face 28. - Materials dispenser 10 additionally includes a power source or
motor 36 to operatenozzle assembly 30.Motor 36 is provided onhandle 14 ofsurgical stapler 12.Motor 36 is a small DC motor powered by primary or secondary batteries. Various switches (not shown) may be provided onsurgical stapler 12 to actuatemotor 36. Alternatively, the actuation switch may be provided remotely fromsurgical stapler 12, such as, a foot switch, etc. Adrive cable 38 extends betweenmotor 36 andnozzle assembly 30 and allowsmotor 36 to be provided remotely fromnozzle assembly 30 either on handle 14 ofsurgical stapler 12 as described herein or remotely off ofsurgical stapler 12 in order to lighten the weight ofsurgical stapler 12 for ease of use. - Referring to
FIG. 2 , a threadeddrive screw 40 is provided at adistal end 42 ofdrive cable 38. Threadeddrive screw 40 engages a threadednut 44 positioned within aproximal section 46 ofnozzle body 32 such that asdrive cable 38 is rotated bydrive motor 36, threadeddrive screw 40 is rotated within threadednut 44 to move threadeddrive screw 40 withinnozzle body 32. Threadednut 44 can be integral withnozzle body 32 or can be fixed therein by conventional methods such as, for example, welding, gluing, etc. -
Nozzle body 32 also includes a tapereddistal section 48 extending distally fromproximal section 46 and defining a distal space orcavity 50. Tapereddistal section 48 includes anupper wall 52 and alower wall 54 which have upper and lowerinner surfaces FIG. 2 , it is obvious that nozzle also includes side wall extending between upper andlower walls 52 and 54 (SeeFIG. 1 ). Upper andlower walls discharge port 34 at adistal end 60 of distal taperedsection 48. The spacing of upper andlower walls point 62 at the junction of proximal anddistal sections discharge port 34 to facilitate squeezing or forcing a source, such ascapsule 64, of mater M towards and out ofdischarge port 34. - A
distal end 68 of threadeddrive screw 40 is configured to engage and move acompression assembly 70 within tapereddistal section 48.Compression assembly 70 is provided to compress and force material M contained withincapsule 64 toward and out ofdischarge port 34.Compression assembly 70 generally includes adrive block 72, engageable withdistal end 60 of threaded drive screw, and a pair of upper andlower arms drive block 72. First andsecond compression rollers lower arms second compression rollers capsule 64 to allow for complete evacuation ofcapsule 64. First andsecond compression rollers second compression rollers inner surfaces adjacent point 62 of tapereddistal section 48 to a closest spacingadjacent discharge port 34 as described herein below. - Specifically, with reference to
FIG. 3 ,upper arm 74 comprises a pair ofupper arms first compression roller 78 andlower arm 76 comprises a pair oflower arms second compression roller 80. Ashaft 82 extends throughdrive block 72 to rotatably supportupper arms lower arms upper spindle 88 extends between distal ends 90 a and 90 b ofupper arms first compression roller 78. First compression roller may be rotatable aboutupper spindle 88 or affixed toupper spindle 88 such that upper spindle is mounted for rotation within distal ends 90 a and 90 b. Similarly, alower spindle 92 is mounted between distal ends 94 a and 94 b oflower arms second compression roller 80. - In order to bias first and
second compression rollers inner surfaces FIG. 2 ),compression assembly 70 is provided with aspring 96 having acenter point 98 mounted onshaft 82 and connected toupper arm 74 b at anupper point 100 andlower arm 76 b at alower point 102. - Referring now to
FIGS. 1-6 , and initially with respect toFIG. 1 , in use,material dispenser 10 is mounted onsurgical stapling device 12 such thatdischarge port 34 extends through fixedlower jaw 16.Trigger 12 is actuated to cause movableupper jaw 18 to move adjacent fixedlower jaw 16. Continued movement oftrigger 12 causes staples (not shown) to be ejected fromstaple cartridge 24 and towardanvil face 26. In this embodiment, actuation oftrigger 12 also operates to activatedrive motor 36 thereby rotatingdrive cable 38. As noted above, other switches or triggering mechanisms, such as foot pedals, etc. may be provided to actuatedrive motor 36. - As best shown in
FIG. 2 ,distal end 42 ofdrive cable 38 engagesdrive block 72 to movecompression assembly 70 distally withindistal section 48 ofnozzle body 32. Distal movement ofcompression assembly 70 causes first andsecond arms second compression rollers inner surfaces shaft 82 andspring 96 biases first andsecond compression rollers inner surfaces FIG. 3 ). - Referring now to
FIGS. 4 and 5 , as first andsecond compression rollers FIG. 4 to an intermediary position shown inFIG. 5 , first and second compression roller engage and compresscapsule 64 causingcapsule 64 to break at itsdistal end 104 and spray or otherwise eject material M into the space between fixedlower jaw 16 and movableupper jaw 18 as shown inFIG. 1 . - Finally, with regard to
FIG. 6 , as first andsecond compression rollers adjacent discharge port 34,capsule 64 is substantially completely compressed between first and second compression rollers and substantially discharged of material M throughdischarge port 34. - Referring now to
FIGS. 7 and 8 , and as noted above,capsule 64 is formed from compressible and breakable or rupturable material and is provided to contain material M prior to use.Capsule 64 has awall 106 configured to contain material M. As best shown inFIG. 7 , in aspecific embodiment wall 106 is formed with a smaller thickness at adistal end 108 and a larger thickness at aproximal end 110 such that, upon compression,wall 106 will break or burst at thedistal end 108 which is positionadjacent discharge port 34 ofnozzle body 32. - Referring now to
FIGS. 9-11 , there are disclosed alternative first andsecond compression rollers compression assembly 70. Specifically, first and second compression rollers are formed of a compressible material, such as, for example, foam, soft rubber, etc. First and second compression rollers form a part ofcompression assembly 70 and are rotatably mounted on upper andlower arms second compression rollers - As best shown in
FIG. 9 , in the initial position, first andsecond compression rollers cavity 50 and thuscapsule 64 contained therein. This allows materials dispenser to be used withcapsule 64 or with a lose material not contained withincapsule 64. - Referring to
FIG. 10 , uponactuation materials dispenser 10, first andsecond compression rollers inner surfaces capsule 64, or other material contained withincavity 50, towarddischarge port 34. As first andsecond compression rollers inner surfaces - Upon complete distal movement of
compression assembly 70 within tapereddistal section 48 ofnozzle body 32,capsule 64 is completely compressed to dispense material M contained therein throughdischarge port 34. First andsecond compression rollers cavity 50 to assume even more oval shapes. In this manner the use of compressible first andsecond compression rollers second compression rollers cavity 50 from the proximal section 46 (FIG. 2 ) ofnozzle body 32 allowing the use of materials M not provided incapsule 64 or otherwise contained. - It will be understood that various modifications may be made to the embodiments disclosed herein. For example, the disclose compression assembly may need only contain a single compression roller. Further, the disclosed materials dispenser may utilize other methods of moving the compression assembly distally within the nozzle assembly, such as, for example, linear moving cables, pneumatics, etc. Additionally, while the disclosed discharge nozzle of the nozzle assembly has been illustrated as being oriented perpendicular to the long axis of the staple containing cartridge, it may alternatively be oriented parallel to the long axis of the staple containing cartridge and discharge material into a knife slot associated with the staple containing cartridge. 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 (20)
1. A material dispenser for use in a surgical stapler, the material dispenser comprising:
a nozzle assembly defining a cavity configured and dimensioned to contain medicament therein;
a compression assembly having a roller movable within the cavity, the roller configured to discharge the medicament from the cavity; and
an actuation assembly having a drive member operatively associated with the roller, wherein translation of the drive member causes the roller to move within the cavity.
2. The material dispenser according to claim 1 , wherein the nozzle assembly defines a discharge port configured and dimensioned to discharge the medicament therethrough, the discharge port in communication with the cavity.
3. The material dispenser according to claim 1 , wherein the drive member is a threaded drive screw, whereby rotation of the threaded drive screw causes the roller to move within the cavity.
4. The material dispenser according to claim 3 , further comprising a motor operatively coupled with the threaded drive screw.
5. The material dispenser according to claim 1 , wherein the compression assembly includes an arm member configured to rotatably support the roller.
6. The material dispenser according to claim 5 , wherein the compression assembly further includes a biasing member to bias the roller toward an inner surface of the nozzle assembly.
7. The material dispenser according to claim 6 , wherein the roller is formed of a compressible material.
8. The material dispenser according to claim 1 , wherein the medicament is contained in a capsule.
9. The material dispenser according to claim 8 , wherein the capsule has a weakened region configured to rupture upon exertion of force by the roller.
10. The material dispenser according to claim 6 , wherein the compression assembly further includes a second arm member and a second roller rotatably supported on the second arm member.
11. The material dispenser according to claim 10 , wherein the rollers are made of a compressible material.
12. The material dispenser according to claim 11 , wherein the arm members are connected about a pivot, the biasing member biasing the rollers toward respective opposing inner walls of the nozzle assembly.
13. The material dispenser according to claim 12 , wherein the rollers engage each other during movement within the cavity.
14. The material dispenser according to claim 2 , wherein the cavity is tapered longitudinally to facilitate discharge of the medicament through the discharge port.
15. A surgical stapler comprising:
a handle assembly;
a pair of jaw members operatively coupled to the handle assembly, the jaw members movable between an open position and a closed position;
a nozzle assembly disposed in at least one of the jaw members, the nozzle assembly defining a cavity configured and dimensioned to hold medicament therein and an opening configured and dimensioned to discharge the medicament therethrough;
a compression assembly having a pair of rollers configured to discharge the medicament from the cavity, the pair of rollers movable along respective opposing inner walls of the nozzle assembly; and
an actuation assembly having a drive member operatively associated with the pair of rollers, wherein translation of the drive member causes the pair of rollers to move within the cavity, wherein the pair of rollers are at least partially in contact with each other.
16. The surgical stapler according to claim 15 , further comprising a motor operatively coupled to the drive member and actuatable by the handle assembly.
17. The surgical stapler according to claim 15 , wherein the actuation assembly further includes an actuation cable coupled with the drive member and a support member rotatably supporting the drive member, whereby rotation of the actuation cable causes translation of the drive member.
18. The surgical stapler according to claim 15 , wherein the rollers are made of a compressible material.
19. The surgical stapler according to claim 15 , wherein the medicament is contained in a capsule having a weakened region configured to rupture upon exertion of force to the capsule.
20. The surgical stapler according to claim 15 , wherein the nozzle assembly is integrally formed with the at least one of the jaw members.
Priority Applications (1)
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US13/442,097 US20120193392A1 (en) | 2007-09-24 | 2012-04-09 | Stapler powered auxiliary device |
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US99500407P | 2007-09-24 | 2007-09-24 | |
US12/195,476 US7866524B2 (en) | 2007-09-24 | 2008-08-21 | Stapler powered auxiliary device for injecting material between stapler jaws |
US12/958,707 US8172121B2 (en) | 2007-09-24 | 2010-12-02 | Stapler powered auxiliary device |
US13/442,097 US20120193392A1 (en) | 2007-09-24 | 2012-04-09 | Stapler powered auxiliary device |
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US13/442,097 Abandoned US20120193392A1 (en) | 2007-09-24 | 2012-04-09 | Stapler powered auxiliary device |
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US12/958,707 Expired - Fee Related US8172121B2 (en) | 2007-09-24 | 2010-12-02 | Stapler powered auxiliary device |
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Also Published As
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JP5371345B2 (en) | 2013-12-18 |
ATE546098T1 (en) | 2012-03-15 |
CA2639474A1 (en) | 2009-03-24 |
EP2039301B1 (en) | 2012-02-22 |
ES2379486T3 (en) | 2012-04-26 |
US20110068144A1 (en) | 2011-03-24 |
JP2009072592A (en) | 2009-04-09 |
EP2039301A1 (en) | 2009-03-25 |
AU2008212050B2 (en) | 2014-04-10 |
US20090078737A1 (en) | 2009-03-26 |
US7866524B2 (en) | 2011-01-11 |
AU2008212050A1 (en) | 2009-04-09 |
US8172121B2 (en) | 2012-05-08 |
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