STAPLE CARTRIDGE
A surgical stapling apparatus is disclosed which comprises a tissue stop configured to inhibit tissue from flowing out of the distal end of the stapling instrument as the tissue is being stapled and/or incised. Also disclosed is a surgical stapling apparatus comprising one or more interruptions, or absent staple cavities, in the rows of staple cavities defined therein. Also disclosed is a surgical stapling apparatus comprising a channel configured to receive tissue and/or another surgical instrument therein. In at least one instance, such a stapling apparatus could comprise staple cavities on one side of a longitudinal knife slot and no staple cavities on the other side of the knife slot. Further disclosed are methods for using the surgical stapling devices disclosed herein.
This application is a continuation application claiming priority under 35 U.S.C. § 120 to U.S. patent application Ser. No. 15/971,567, entitled STAPLE CARTRIDGE, filed May 4, 2018, now U.S. Patent Application Publication No. 2018/0317917, which is a continuation application claiming priority under 35 U.S.C. § 120 to U.S. patent application Ser. No. 14/512,637, entitled STAPLE CARTRIDGE, filed Oct. 13, 2014, which issued on Sep. 18, 2018 as U.S. Pat. No. 10,076,325, the entire disclosures of which are hereby incorporated by reference herein.
BACKGROUNDThe present invention relates to stapling instruments and, in various embodiments, to a surgical stapling instrument for producing one or more rows of staples.
A stapling instrument can include a pair of cooperating elongate jaw members, wherein each jaw member can be adapted to be inserted into a patient and positioned relative to tissue that is to be stapled and/or incised. In various embodiments, one of the jaw members can support a staple cartridge with at least two laterally spaced rows of staples contained therein, and the other jaw member can support an anvil with staple-forming pockets aligned with the rows of staples in the staple cartridge. Generally, the stapling instrument can further include a pusher bar and a knife blade which are slidable relative to the jaw members to sequentially eject the staples from the staple cartridge via camming surfaces on the pusher bar and/or camming surfaces on a wedge sled that is pushed by the pusher bar. In at least one embodiment, the camming surfaces can be configured to activate a plurality of staple drivers carried by the cartridge and associated with the staples in order to push the staples against the anvil and form laterally spaced rows of deformed staples in the tissue gripped between the jaw members. In at least one embodiment, the knife blade can trail the camming surfaces and cut the tissue along a line between the staple rows. Examples of such stapling instruments are disclosed in U.S. Pat. No. 7,794,475, entitled SURGICAL STAPLES HAVING COMPRESSIBLE OR CRUSHABLE MEMBERS FOR SECURING TISSUE THEREIN AND STAPLING INSTRUMENTS FOR DEPLOYING THE SAME, the entire disclosure of which is hereby incorporated by reference herein.
The foregoing discussion is intended only to illustrate various aspects of the related art in the field of the invention at the time, and should not be taken as a disavowal of claim scope.
Various features of the embodiments described herein are set forth with particularity in the appended claims. The various embodiments, however, both as to organization and methods of operation, together with advantages thereof, may be understood in accordance with the following description taken in conjunction with the accompanying drawings as follows:
Corresponding reference characters indicate corresponding parts throughout the several views. The exemplifications set out herein illustrate various embodiments of the invention, in one form, and such exemplifications are not to be construed as limiting the scope of the invention in any manner.
Numerous specific details are set forth to provide a thorough understanding of the overall structure, function, manufacture, and use of the embodiments as described in the specification and illustrated in the accompanying drawings. It will be understood by those skilled in the art, however, that the embodiments may be practiced without such specific details. In other instances, well-known operations, components, and elements have not been described in detail so as not to obscure the embodiments described in the specification. Those of ordinary skill in the art will understand that the embodiments described and illustrated herein are non-limiting examples, and thus it can be appreciated that the specific structural and functional details disclosed herein may be representative and illustrative. Variations and changes thereto may be made without departing from the scope of the claims.
The terms “comprise” (and any form of comprise, such as “comprises” and “comprising”), “have” (and any form of have, such as “has” and “having”), “include” (and any form of include, such as “includes” and “including”) and “contain” (and any form of contain, such as “contains” and “containing”) are open-ended linking verbs. As a result, a surgical system, device, or apparatus that “comprises,” “has,” “includes” or “contains” one or more elements possesses those one or more elements, but is not limited to possessing only those one or more elements. Likewise, an element of a system, device, or apparatus that “comprises,” “has,” “includes” or “contains” one or more features possesses those one or more features, but is not limited to possessing only those one or more features.
The terms “proximal” and “distal” are used herein with reference to a clinician manipulating the handle portion of the surgical instrument. The term “proximal” referring to the portion closest to the clinician and the term “distal” referring to the portion located away from the clinician. It will be further appreciated that, for convenience and clarity, spatial terms such as “vertical”, “horizontal”, “up”, and “down” may be used herein with respect to the drawings. However, surgical instruments are used in many orientations and positions, and these terms are not intended to be limiting and/or absolute.
Various exemplary devices and methods are provided for performing laparoscopic and minimally invasive surgical procedures. However, the person of ordinary skill in the art will readily appreciate that the various methods and devices disclosed herein can be used in numerous surgical procedures and applications including, for example, in connection with open surgical procedures. As the present Detailed Description proceeds, those of ordinary skill in the art will further appreciate that the various instruments disclosed herein can be inserted into a body in any way, such as through a natural orifice, through an incision or puncture hole formed in tissue, etc. The working portions or end effector portions of the instruments can be inserted directly into a patient's body or can be inserted through an access device that has a working channel through which the end effector and elongated shaft of a surgical instrument can be advanced.
A surgical stapling system 100 is depicted in
Referring primarily to
Referring again to
Further to the above, the sled 170 is moved distally by a firing member 160. The firing member 160 is configured to contact the sled 170 and push the sled 170 toward the distal end 149. The longitudinal slot 143 defined in the cartridge body 142 is configured to receive the firing member 160. Referring primarily to
Further to the above, the knife 163 applies a longitudinal force to the tissue as the firing member 160 is moved distally toward the distal end 149. It should be understood that, while the knife 163 transects the tissue as the firing member 160 is moved distally, the knife 163 may also push the tissue distally toward the distal end 149 of the staple cartridge 140. In various circumstances, as a result, a portion of the tissue that the surgeon intended to staple may not be stapled. As discussed in greater detail below, the surgical stapling system 100 includes a tissue stop configured to impede and/or prevent the flow of tissue out of the distal end of the surgical stapling system 100.
Referring primarily to
As discussed above, the knife 163 can push the tissue toward the tissue stop 190 as the knife 163 transects the tissue. The tissue stop 190 can inhibit and/or prevent the longitudinal flow of the tissue. The tissue stop 190 can dam the longitudinal flow of tissue. When the firing member 160 is moved from its proximal-most position toward its distal-most position (
As the firing member 160 is advanced distally toward the tissue stop 190, as discussed above, the knife 163 can approach the tissue stop 190. The tissue stop 190 comprises a slot, or catch, 194 defined therein configured to at least partially receive the knife 163. In various instances, the knife 163 can abut the head 192 of the tissue stop 190 when the firing member 160 has reached its distal-most position. When the knife 163 contacts the tissue stop 190, the tissue stop 190 can also serve as a knife stop. When the knife 163 is in contact with the tissue stop 190, the firing member 160 can be prevented from being advanced further distally. In the event that the firing member 160 is being advanced by a manually-actuated firing trigger extending from the handle of the surgical instrument, the surgeon operating the surgical instrument can sense that the firing member 160 has been fully advanced when the knife 163 contacts the tissue stop 160. At such point, the surgeon can operate the surgical instrument to retract the firing member 160. In the event that the firing member 160 is being advanced by an electric motor, a computer or processor operating the electric motor can be configured to detect a sudden increase in force experienced by the firing member 160 and/or a sudden increase in torque generated by the electric motor and, in response thereto, determine that the firing stroke of the firing member 160 has been completed and/or automatically retract the firing member 160 proximally.
The tissue stop 190 is comprised of plastic, for example; however, the tissue stop 190 can be comprised of any suitable material. When the tissue stop 190 is configured to serve as a knife stop, the tissue stop 190 can be comprised of a material that can resist, or at least substantially resist, the incising force applied thereto by the knife 163. When the knife 163 is not readily replaceable, it is desirable to fabricate the tissue stop 190 out of a material that will not damage the knife 163. The knife 163 may not be readily replaceable when the knife 163 is part of the surgical stapling instrument, and not part of the replaceable cartridge. When the knife 163 is, in fact, part of the replaceable cartridge, damage to the knife 163 from contacting the tissue stop 190 may be less of a concern as the damage to the knife 163 would not occur until the end of the firing stroke and the knife 163 would not be used to cut tissue thereafter.
In addition to or in lieu of the tissue stop 190 acting as a knife stop, referring again to
In various instances, further to the above, the tissue stop 190 may not deflect or displace downwardly within the pin aperture 146. In such instances, the tissue stop 190 can withstand the downward clamping force applied thereto when the anvil 130 is moved into a closed position and, in addition, the downward compression force applied thereto when the anvil 130 is moved downwardly toward the cartridge 140 by the firing member 160. As discussed above, the firing member 160 comprises a first cam 162 configured to engage the first jaw 112 and a second cam 164 configured to engage the second jaw 114 wherein, when the firing member 160 is advanced distally, the firing member 160 can pull the anvil 130 toward the cartridge 140 and apply a compressive force to, one, the tissue captured between the anvil 130 and the cartridge 140 and, two, the tissue stop 190. The compressive force applied to the tissue stop 190 by the firing member 160 can increase as the firing member 160 is advanced distally. For instance, the firing member 160 can apply an initial compressive force to the tissue stop 190 at the beginning of the firing stroke and a maximum compressive force to the tissue stop 190 when the firing member 160 reaches the end of its firing stroke. The interaction between the detent 196 and the cartridge body 142 can be sufficient to support the tissue stop 190 in position throughout the firing stroke of the firing member 160.
In various other instances, further to the above, the tissue stop 190 may deflect and/or displace downwardly within the pin aperture 146. The tissue stop 190 can be slidably mounted in the pin aperture 146, for example. In at least one instance, the tissue stop 190 can withstand the downward clamping force applied thereto when the anvil 130 is moved into a closed position and then deflect and/or displace downwardly during the firing stroke of the firing member 160. In some instances, the tissue stop 190 can deflect and/or displace downwardly as a result of the initial compressive force applied to the tissue stop 190 at the beginning of the firing stroke of the firing member 160. In such instances, the tissue stop 190 comprises a feature which resists recessing under a load less than the load experienced during the firing stroke. In certain instances, the tissue stop 190 can deflect and/or displace downwardly as a result of the maximum compressive force applied to the tissue stop 190 at the end of the firing stroke of the firing member 160. In other instances, the tissue stop 190 can deflect and/or displace downwardly when the firing member 160 is between the beginning and the end of the firing stroke. In embodiments including the detent 196, the detent 196 can be configured to hold the tissue stop 190 in position until the compressive force applied to the tissue stop 190 exceeds a threshold force. At such point, the detent 196 can be defeated and the tissue stop 190 can move downwardly into the pin aperture 146. In various embodiments, the head 192 of the tissue stop 190 may recede entirely below the deck 141 of the cartridge 140 while, in other embodiments, the head 192 may not recede entirely below the deck 141. Even though the tissue stop 190 may give way during the firing stroke of the firing member 160, the tissue stop 190 may still perform the function of preventing and/or limiting the distal flow of the tissue before it gives way. At such point, a portion of the firing stroke, and possibly a large portion of the firing stroke, may have been completed.
In addition to or in lieu of the detent 196, a support can be positioned under the tissue stop 190 to prevent the tissue stop 190 from deflecting and/or displacing downwardly. The support can be pushed distally by the firing member 160 during the firing stroke of the firing member 160 such that the support no longer supports the tissue stop 190 and, as a result, the tissue stop 190 can give way or recess during the firing stroke of the firing member 160, as discussed above. In various instances, the support can be pushed out of the way at the end of the firing stroke of the firing member 160, for example. In other instances, the support can be pushed out of the way prior to the end of the firing stroke of the firing member 160. The support can be comprised of foam, for example. In various instances, the support can be comprised of a resilient material which can permit the tissue stop 190 to partially recess under a compressive load until the support is pushed out from underneath the tissue stop 190. In certain instances, the support can be comprised of a rigid material which does not permit the tissue stop 190 to recess, or at least substantially recess, until the support is pushed out from underneath the tissue stop 190.
The tissue stop 190 further comprises a slot 193 defined therein. The slot 193 is a clearance slot configured to receive a portion of the firing member 160 as the firing member 160 moves distally.
The head 192 of the tissue stop 190 can comprise any suitable configuration. In various instances, the head 192 can comprise a substantially cylindrical configuration, for example. In some instances, the head 192 can comprise a substantially rectangular configuration, for example. Such a rectangular shape can utilize the space in between the innermost rows of drivers and can be guided by the side walls of the cartridge slot 143. The head 192 can comprise rounded edges and/or surfaces which can reduce the pressure or stress applied to the tissue.
Referring again to the staple cartridge 140 depicted in
A staple cartridge 240 is depicted in
The staple cavities 245a-245c, and the staples 285a-285c positioned therein, are arranged in three longitudinal rows on a first side of the longitudinal slot 243 and three longitudinal rows on a second side of the longitudinal slot 243. The three longitudinal rows of staple cavities 245a-245c, and staples 285a-285c, on the second side of the longitudinal slot 243 are a mirror image of three longitudinal rows of staple cavities 245a-245c, and staples 285a-285c, on the first side of the longitudinal slot 243; however, alternative embodiments are envisioned in which the second side is not a mirror image of the first side. Referring again to
however, alternative embodiments are envisioned in which the first longitudinal row 284′, the second longitudinal row 284″, and/or the third longitudinal row 284′″ are not parallel to each other and/or to the longitudinal slot 243.
The first longitudinal row 284′ comprises two first staple cavities 245a at a proximal end thereof and, in addition, two first staple cavities 245a at a distal end thereof. A large longitudinal gap is present between the proximal first staple cavities 245a and the distal first staple cavities 245a in the first row 284′. This large longitudinal gap is large enough such that more than one first staple cavity 245a could be positioned therein. Stated another way, if a pattern of first staple cavities 245a were arranged in the first row 284′ at regular intervals, several of the first staple cavities 245a are missing, or not present, within the large longitudinal gap. The first longitudinal row of staple cavities 284′ comprises an interruption in the pattern of staple cavities. The interruption comprises an absence of staple cavities. As a result, the first longitudinal row of staples comprises an interruption in the pattern of staples. This interruption comprises an absence of staples.
Similar to the above, the second longitudinal row 284″ comprises two first staple cavities 245a at a proximal end thereof and, in addition, two first staple cavities 245a at a distal end thereof. A large longitudinal gap is present between the proximal first staple cavities 245a and the distal first staple cavities 245a in the second row 284″. This large longitudinal gap is large enough such that more than one first staple cavity 245a could be positioned therein. Stated another way, if a pattern of first staple cavities 245a were arranged in the second row 284″ at regular intervals, several of the first staple cavities 245a are missing, or not present, within the large longitudinal gap. The second longitudinal row of staple cavities 284″ comprises an interruption in the pattern of staple cavities. The interruption comprises and an absence of staple cavities. As a result, the second longitudinal row of staples comprises an interruption in the pattern of staples. This interruption comprises an absence of staples.
The third longitudinal row 284′″ comprises two second staple cavities 245b at a proximal end thereof and, in addition, two second staple cavities 245b at a distal end thereof. The third row 284′″ further comprises third staple cavities 245c positioned intermediate the proximal second staple cavities 245b and the distal second staple cavities 245b. As illustrated in
Further to the above, and referring again to
Referring again to
The second staples 285b are comprised of wire, for example. The wire can be comprised of stainless steel and/or titanium, for example. The wire has a rectangular cross-section; however, alternative cross-sections may be utilized. Each second staple 285b can comprise any suitable configuration such as, for example, a V-shaped configuration or a U-shaped configuration. A second staple 285b comprising a V-shaped configuration can include a base, a first leg extending from a first end of the base, and a second leg extending from a second end of the base, wherein the first leg and the second leg extend in directions which are non-parallel to one another. A second staple 285b comprising a U-shaped configuration can include a base, a first leg extending from a first end of the base, and a second leg extending from a second end of the base, wherein the first leg and the second leg extend in directions which are parallel to one another.
The third staples 285c are comprised of wire, for example. The wire can be comprised of stainless steel and/or titanium, for example. The wire has a circular cross-section; however, alternative cross-sections may be utilized. Each third staple 285c can comprise any suitable configuration such as, for example, a V-shaped configuration or a U-shaped configuration. A third staple 285c comprising a V-shaped configuration can include a base, a first leg extending from a first end of the base, and a second leg extending from a second end of the base, wherein the first leg and the second leg extend in directions which are non-parallel to one another. A third staple 285c comprising a U-shaped configuration can include a base, a first leg extending from a first end of the base, and a second leg extending from a second end of the base, wherein the first leg and the second leg extend in directions which are parallel to one another.
As discussed above, the third staples 285c are longitudinally wider than the second staples 285b. In various instances, the third staples 285c are twice as wide, longitudinally, than the second staples 285b, for example. The third staples 285c can be at least twice as wide, longitudinally, than the second staples 285b, for example. In some instances, the third staples 285c are thrice as wide, longitudinally, than the second staples 285b, for example. Similar to the above, the third staples 285c are longitudinally wider than the first staples 285a. In various instances, the third staples 285c are twice as wide, longitudinally, than the first staples 285a, for example. The third staples 285c can be at least twice as wide, longitudinally, than the first staples 285a, for example. In some instances, the third staples 285c are thrice as wide, longitudinally, than the first staples 285a, for example. Other embodiments are envisioned in which the first staples 285a, the second staples 285b, and the third staples 285c comprise any suitable width.
The second staples 285b are laterally wider than the third staples 285c. In various instances, the second staples 285b are twice as wide, laterally, than the third staples 285c, for example. The second staples 285b can be at least twice as wide, laterally, than the third staples 285c, for example. In some instances, the second staples 285b are thrice as wide, longitudinally, than the third staples 285c, for example. Similar to the above, the second staples 285b are laterally wider than the first staples 285a. In various instances, the second staples 285b are twice as wide, laterally, than the first staples 285a, for example. The second staples 285b can be at least twice as wide, laterally, than the first staples 285a, for example. In some instances, the second staples 285b are thrice as wide, laterally, than the first staples 285a, for example. The second staples 285b are comprised of thicker wire stock than the first staples 285a and the third staples 285c; however, other embodiments are envisioned in which the first staples 285a, the second staples 285b, and the third staples 285c comprise any suitable thickness.
The first staples 285a, the second staples 285b, and the third staples 285c have the same unformed height; however, other embodiments are envisioned in which the first staples 285a have a different unformed height than the second staples and/or the third staples. Similarly, other embodiments are envisioned in which the second staples 285b have a different unformed height than the third staples 285c. The first staples 285a, the second staples 285b, and the third staples 285c have the same deformed height; however, other embodiments are envisioned in which the first staples 285a have a different deformed height than the second staples and/or the third staples. Similarly, other embodiments are envisioned in which the second staples 285b have a different deformed height than the third staples 285c. The disclosures of U.S. Pat. No. 7,866,528, entitled STAPLE DRIVE ASSEMBLY, which issued on Jan. 1, 2011; U.S. Pat. No. 7,726,537, entitled SURGICAL STAPLER WITH UNIVERSAL ARTICULATION AND TISSUE PRE-CLAMP, which issued on Jun. 1, 2010; U.S. Pat. No. 7,641,091, entitled STAPLE DRIVE ASSEMBLY, which issued on Jan. 5, 2010; U.S. Pat. No. 7,635,074, entitled STAPLE DRIVE ASSEMBLY, which issued on Dec. 22, 2009; and U.S. Pat. No. 7,997,469, entitled STAPLE DRIVE ASSEMBLY, which issued on Aug. 16, 2011, are hereby incorporated by reference herein in their respective entireties.
The first staples 285a and the second staples 285b at the proximal ends of the rows 284′, 284″, and 284′″ comprise a proximal sealing cluster configured to seal tissue positioned over the proximal end of the staple cartridge 240. The first staples 285a and the second staples 285b at the distal ends of the rows 284′, 284″, and 284′″ comprise a distal sealing cluster configured to seal tissue positioned over the distal end of the staple cartridge 240. A sealing cluster of staples is configured to clamp the tissue and limit the flow of fluids, such as blood, for example, therethrough. A sealing cluster can also hold or bind the tissue together. The third staples 285c comprise a holding or binding cluster configured to hold or bind the tissue together. The holding or binding cluster may also seal the tissue; however, the hemostasis that can be achieved with only one row of staples can be limited in certain circumstances.
Referring again to
Turning now to
As also illustrated in
Turning now to
Referring again to
The stapling assembly 300 comprises a circular stapling assembly. A circular stapling assembly can form one or more circular rings of staples in the tissue captured between the anvil portion 330 and the staple cartridge portion 340. The staple cartridge 340 comprises a plurality of staples 385 removably stored therein which are pushed toward the anvil 330 by staple pushers 380. The pushers 380 are pushed toward the anvil portion 330 by a firing member movably positioned in a shaft 320 of the stapling assembly 300. The firing member also pushes a circular knife 363 toward the anvil portion 330 to transect the tissue positioned radially inwardly with respect to the staple lines created by the staple cartridge portion 340. After the staples 385 have been fired and the tissue has been transected, the anvil portion 330 is disconnected from the connecting rod 310. The cartridge portion 340 of the stapling assembly 300 is then withdrawn from the patient's rectum. The anvil portion 330 is removed from the patient's colon and the incision used to insert the anvil portion 330 into the colon is closed via suturing, for example. The transected tissue, discussed above, often takes the shape of an annular ring which passes naturally through the patient's GI tract. The disclosure of U.S. Pat. No. 8,360,297, entitled SURGICAL CUTTING AND STAPLING INSTRUMENT WITH SELF ADJUSTING ANVIL, which issued on Jan. 29, 2013, is incorporated by reference in its entirety.
As illustrated in
At the end of the surgical technique, referring primarily to
Referring again to
As discussed above, referring again to
The embodiment disclosed in
Various stapling devices and techniques for removing a diseased portion of a patient's gastrointestinal tract and reconnecting, or stapling, the remaining portions thereof is disclosed above. Certain stapling devices disclosed herein may be utilized to treat a fistula that has developed in a patient's gastrointestinal tract, for example. A fistula is a narrow passage that can form in a patient's colon, for example, which permits waste to exit the gastrointestinal tract into the patient's body. The fistula can be treated by filling and/or sealing the passage. The passage can be filled with fibrin, thrombin, a fibrin/thrombin mix, autologous tissue fragments, and/or cyanoacrylate, for example. A surgical stapling system 400 for sealing a fistula is disclosed in
Referring again to
Further to the above, the deck 449 of the staple cartridge 440 comprises staple cavities 445 defined in a first side of the deck 449 and a flat, or an at least substantially flat, surface defined on a second side of the deck 449. The flat surface on the second side of the deck 449 can comprise a solid, or an at least substantially solid, surface; however, as discussed above, the second side of the deck 449 comprises an aperture 447 defined therein. In various other embodiments, the second side of the deck 449 can comprise a channel comprising an open upper side configured to slidably receive a grasping instrument therein. In any event, the grasping instrument can be extended to grab the tissue and then retracted to pull the tissue over the deck 449. Specifically, the tissue T comprising the fistula F can be pulled over the staple cavities 445 and the longitudinal slot 443. The deck 449 can support the tissue as the anvil is moved from an open position to a closed position to clamp the tissue against the staple cartridge 440. Once the tissue has been clamped, the tissue T comprising the fistula F can be stapled by the staples ejected from the cavities 445 and incised by a cutting portion of the firing member passing through the longitudinal slot 443. The staples can seal the fistula F. The tissue positioned over the second side of the deck 449 will not be stapled and it will be transected from the stapled tissue. Once the fistula F has been sealed, the anvil can be re-opened and the tissue T can be released. In some instances, the grasping member and/or the anvil can be re-clamped to grasp the transected tissue and remove it from the patient as the stapling assembly 400 is removed from the patient.
The stapling assembly 400 can be inserted into the patient in any suitable manner. For instance, the stapling assembly 400 can be attached to a surgical instrument and then inserted laparoscopically through a trocar into the patient, for example. In other instances, the stapling assembly 400 can be inserted trans-anally into a patient, for example.
The stapling assembly 400 comprises a linear staple cartridge 440. The staple cavities 445 are arranged along linear longitudinal rows and the longitudinal slot 443 is also linear as well. Other embodiments are envisioned in which the stapling assembly 400 is curved and the staple cavities 445 are arranged along curved rows. The slot 443 may also be curved as well. The disclosure of U.S. Patent Application Publication No. 2008/0169332, entitled SURGICAL STAPLING DEVICE WITH A CURVED CUTTING MEMBER, which was filed on Jan. 11, 2007, is incorporated by reference in its entirety. The disclosure of U.S. Patent Application Publication No. 2014/0243865, entitled INTERCHANGEABLE TOOLS FOR SURGICAL INSTRUMENTS, which was filed on May 7, 2014, is incorporated by reference in its entirety.
The entire disclosures of:
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U.S. Patent Application Publication No. 2010/0264194, entitled SURGICAL STAPLING INSTRUMENT WITH AN ARTICULATABLE END EFFECTOR, filed Apr. 22, 2010, now U.S. Pat. No. 8,308,040, are hereby incorporated by reference herein.
Although the various embodiments of the devices have been described herein in connection with certain disclosed embodiments, many modifications and variations to those embodiments may be implemented. Also, where materials are disclosed for certain components, other materials may be used. Furthermore, according to various embodiments, a single component may be replaced by multiple components, and multiple components may be replaced by a single component, to perform a given function or functions. The foregoing description and following claims are intended to cover all such modification and variations.
The devices disclosed herein can be designed to be disposed of after a single use, or they can be designed to be used multiple times. In either case, however, the device can be reconditioned for reuse after at least one use. Reconditioning can include any combination of the steps of disassembly of the device, followed by cleaning or replacement of particular pieces, and subsequent reassembly. In particular, the device can be disassembled, and any number of the particular pieces or parts of the device can be selectively replaced or removed in any combination. Upon cleaning and/or replacement of particular parts, the device can be reassembled for subsequent use either at a reconditioning facility, or by a surgical team immediately prior to a surgical procedure. Those skilled in the art will appreciate that reconditioning of a device can utilize a variety of techniques for disassembly, cleaning/replacement, and reassembly. Use of such techniques, and the resulting reconditioned device, are all within the scope of the present application.
Preferably, the invention described herein will be processed before surgery. First, a new or used instrument is obtained and if necessary cleaned. The instrument can then be sterilized. In one sterilization technique, the instrument is placed in a closed and sealed container, such as a plastic or TYVEK bag. The container and instrument are then placed in a field of radiation that can penetrate the container, such as gamma radiation, x-rays, or high-energy electrons. The radiation kills bacteria on the instrument and in the container. The sterilized instrument can then be stored in the sterile container. The sealed container keeps the instrument sterile until it is opened in the medical facility.
While this invention has been described as having exemplary designs, the present invention may be further modified within the spirit and scope of the disclosure. This application is therefore intended to cover any variations, uses, or adaptations of the invention using its general principles. Further, this application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains.
Any patent, publication, or other disclosure material, in whole or in part, that is said to be incorporated by reference herein is incorporated herein only to the extent that the incorporated materials does not conflict with existing definitions, statements, or other disclosure material set forth in this disclosure. As such, and to the extent necessary, the disclosure as explicitly set forth herein supersedes any conflicting material incorporated herein by reference. Any material, or portion thereof, that is said to be incorporated by reference herein, but which conflicts with existing definitions, statements, or other disclosure material set forth herein will only be incorporated to the extent that no conflict arises between that incorporated material and the existing disclosure material.
Claims
1. A surgical stapling apparatus, comprising:
- a cartridge body, comprising: a proximal end; a distal end; a deck comprising a tissue-supporting surface; a slot defined in said deck, wherein said slot extends from said proximal end toward said distal end; a plurality of staple cavities;
- a plurality of staples removably stored in said staple cavities which are arranged in a staple pattern; and
- a tissue stop positioned in said slot, wherein said tissue stop extends above said deck surface, wherein said tissue stop is positioned within said staple pattern, and wherein said tissue stop is configured to inhibit the distal flow of tissue relative to said deck.
2. The surgical stapling apparatus of claim 1, further comprising a cutting member movably positioned within said slot during a firing stroke, wherein said cutting member is configured to contact said tissue stop at the end of said firing stroke.
3. The surgical stapling apparatus of claim 2, wherein said tissue stop comprises a catch configured to receive at least a portion of said cutting member at the end of said firing stroke.
4. The surgical stapling apparatus of claim 1, further comprising an anvil configured to deform said staples, wherein said anvil is movable between an open position and a closed position, and wherein said anvil is configured to contact tissue stop when said anvil reaches said closed position.
5. The surgical stapling apparatus of claim 1, wherein said staple cavities are arranged in a row of staple cavities having a proximal row end and a distal row end, and wherein said tissue stop is positioned proximally with respect to said distal row end.
6. The surgical stapling apparatus of claim 1, wherein said tissue stop is positioned laterally with respect to at least one staple cavity.
7. A surgical stapling apparatus, comprising:
- a cartridge body, comprising: a proximal end; a distal end; a deck comprising a tissue-supporting surface; a longitudinal slot defined in said deck, wherein said longitudinal slot extends from said proximal end toward said distal end; a plurality of staple cavities arranged in a first longitudinal row, wherein said first longitudinal row is adjacent said longitudinal slot, wherein said first longitudinal row comprises: proximal staple cavities; distal staple cavities; and an interruption in staple cavities extending between said proximal staple cavities and said distal staple cavities, wherein said interruption comprises the absence of at least one staple cavity; and a plurality of staple cavities arranged in a second longitudinal row; and
- a plurality of staples removably stored in said staple cavities.
8. The surgical stapling apparatus of claim 7, further comprising a third longitudinal row of staple cavities comprising:
- proximal staple cavities;
- distal staple cavities; and
- an interruption in staple cavities extending between said proximal staple cavities and said distal staple cavities, wherein said interruption comprises the absence of at least one staple cavity.
9. The surgical stapling apparatus of claim 7, wherein said second longitudinal row of staple cavities comprises a continuous row of staple cavities.
10. The surgical stapling apparatus of claim 9, wherein said continuous row of staple cavities comprises a first type of staple cavities having a first width and a second type of staple cavities having a second width, and wherein said second width is wider than said first width.
11. The surgical stapling apparatus of claim 10, wherein said second type of staple cavities are positioned intermediate a proximal first type of staple cavity and a distal first type of staple cavity.
12. A surgical stapling apparatus, comprising:
- a cartridge body, comprising: a proximal end; a distal end; a deck comprising a tissue-supporting surface; and a longitudinal slot defined in said deck, wherein said longitudinal slot extends from said proximal end toward said distal end;
- a proximal cluster of staples removably stored adjacent said proximal end on a first side of said longitudinal slot;
- a distal cluster of staples removably stored adjacent said distal end on said first side of said longitudinal slot; and
- only one row of intermediate staples removably stored intermediate said proximal cluster of staples and said distal cluster of staples.
13. The surgical stapling apparatus of claim 12, wherein said proximal cluster of staples comprises:
- at least one first staple having a first longitudinal width; and
- at least one second staple having a second longitudinal width which is wider than said first longitudinal width.
14. The surgical stapling apparatus of claim 13, wherein said intermediate staples have a third longitudinal width which is wider than said first longitudinal width and said second longitudinal width.
15. The surgical stapling apparatus of claim 13, wherein said distal cluster of staples comprises:
- at least one said first staple; and
- at least one said second staple.
16-20. (canceled)
Type: Application
Filed: Apr 14, 2020
Publication Date: Oct 15, 2020
Inventors: Zhifan F. Huang (Mason, OH), Jerome R. Morgan (Cincinnati, OH), Frederick E. Shelton, IV (Hillsboro, OH)
Application Number: 16/847,892