WO1982000969A1 - Agrafeuse chirurgicale jetable - Google Patents

Agrafeuse chirurgicale jetable Download PDF

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Publication number
WO1982000969A1
WO1982000969A1 PCT/AU1981/000132 AU8100132W WO8200969A1 WO 1982000969 A1 WO1982000969 A1 WO 1982000969A1 AU 8100132 W AU8100132 W AU 8100132W WO 8200969 A1 WO8200969 A1 WO 8200969A1
Authority
WO
WIPO (PCT)
Prior art keywords
lever
members
surgical stapling
stapling instrument
instrument
Prior art date
Application number
PCT/AU1981/000132
Other languages
English (en)
Inventor
Prod Ltd Hospital
Original Assignee
Dippert M
Ciabatti A
Lemcke V
Crispe L
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dippert M, Ciabatti A, Lemcke V, Crispe L filed Critical Dippert M
Priority to AU75844/81A priority Critical patent/AU7584481A/en
Publication of WO1982000969A1 publication Critical patent/WO1982000969A1/fr

Links

Classifications

    • 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

Definitions

  • This invention relates to surgical stapling instruments of the type comprising a manually operated drive mechanism by means of which staples are ejected from a staple cartridge against an anvil through intervening tissue, in surgical suturing procedures.
  • the two halves of the instrument are assembled by engaging a hinge connection between the upper and lower jaw frames at the rearward end of the instrument, bringing the frames together with the tissue correctly positioned between the opposed forward projections, and locking the jaw frames together by means of a clamping lever pivotally attached to the lower jaw frame, after which the stapling operation is carried out by pushing forwardly within an elongated slot in the upper jaw frame, a handle which functions to drive forwardl within the staple cartridge a pair of staple ejecting pusher cams and a central knife edge, the latter severing tissue between the rows of staples ejected from the cartridge.
  • the clamping lever is removably engaged with the lower jaw frame by the engagement of a slot in the locking lever with a press fitted pin which passes between the outer walls of the lower jaw frame, and is provided at its inner end with a hinge pin which is engaged within a pair of slots provided in the walls of the upper jaw frame.
  • the locking lever is retained in its closed position during a stapling operation by means of a leaf spring mounted on the lower jaw frame, which leaf spring must be depressed to release the locking lever upon completion of a stapling operation.
  • the prior art instrument suffers from several disadvantages. Although when the clamping lever is released and moved to its open position the ' jaws of the instrument are free to be opened as widely as desired in order to release the instrument from the stapled tissue, yet the action of the clamping lever and its pin-and-slot engagement with the upper and lower jaw frames is such that it clicks into a fixed open position, and it is found that this limited opening action of the locking lever does not encourage the surgeon to open the jaws of the instrument any wider than they are automatically opened when the locking lever is moved to its fixed open position. In cases where a considerable thickness of tissue has been stapled, this may lead to tissue remaining jammed in the jaws such that removal of the instrument may cause tearing or other damage to the tissue.
  • the leaf spring catch employed to retain the locking lever in its closed position provides insufficiently positive locking, such that if the jaws of the instrument are over ⁇ loaded upon closure, for example where the tissue thickness exceeds the limits of the instrument, the locking lever may be released by the leaf spring and returned to its open position. Again in the case of large tissue thickness when the instrument is locked with high pressure on the jaws it is difficult or at times impossible to release the spring catch by pressure with the thumb as is intended.
  • a further disadvantage of such a known instrument is that it has hitherto been necessary to manufacture the instrument entirely of steel so that it is not practical to manufacture such an instrument at a cost which enables it to be disposed of after one or only a few uses.
  • the instruments therefore require repeated sterilisation and inevitably suffer from corrosion and wear after repeated uses.
  • the invention broadly resides in a surgical stapling instrument comprising first and second members each comprising a handle portion and a nose portion, said nose portions being respectively adapted for the reception of a staple cartridge and a staple forming anvil, said members being adapted for detachable hinged connection in the region of the ends of said handle portions remote from said nose portions, and a clamping lever adapted for pivoting connection to one of said members and engageable with the other of said members to clamp said members together, characterised in that each said member comprises a body of plastics material and a metal rib, said rib being structurally associated with said body and extending substantially throughout the length of said nose portion and over a substantial length of said handle portion.
  • Figure 1 shows in side elevation of a surgical stapling instrument embodying the present invention.
  • Figure 2 shows in side elevation the upper jaw member of the instrument illustrated in Figure 1,
  • Figure 3 is an underneath plan view of the upper jaw member of Figure 2
  • Figure 4 is a side elevation of the lower jaw member of the instrument of Figure 1,
  • Figure 5 is a plan view of the lower jaw member of Figure 4,
  • Figure 6 is a side elevation of the reinforcing member of the upper jaw member of Figure 2
  • FIG 7 shows in side elevation the reinforcing member of the lower jaw member of Figure 4,
  • FIG. 8 shows * in side elevation the clamping lever of the instrument of Figure 1
  • Figure 9 is an end elevation of the clamping lever of Figure 8.
  • Figure 10 is a plan view of one of the side walls of the lever of Figure 8.
  • Figure 11 is a cross-section taken at 11 in Figure 2
  • Figure 12 is a corresponding cross-section taken at 12 in Figure 4,
  • Figure 13 is a cross-section taken at 13 in Figure 2
  • Figure 14 is a corresponding cross-section taken at 14 in Figure 4,
  • Figure 15 is a cross-section taken at 15 in Figure 2,
  • Figure 16 is a corresponding cross-section taken at 16 in Figure 4,
  • URIZ Figure 17 is a cross-section taken at 17 in Figure 2,
  • Figure 18 is a corresponding cross-section taken at 18 in Figure 4,
  • Figure 19 is a cross-section taken at 19 in Figure 2,
  • Figure 20 is a corresponding cross-section taken at 20 in Figure 4,
  • Figure 21 shows in plan view the locking slide of the instrument of Figure 1 .
  • Figure 22 is a side elevation of the locking slide of Figure 21.
  • the instrument illustrated in the drawings comprises an upper jaw member 30, a lower jaw member 31 and a clamping lever 32.
  • the upper jaw member consists of a handle portion 33 and a forward projection 34, and is of generally U-shaped cross-section.
  • the forward projection 34 is provided with a slot 35 for the reception of a staple cartridge of a type similar to the cartridge employed with the instrument described in the above-mentioned U.S. patent 3,499,591.
  • the lower jaw member 31 is similarly of generally U-shaped cross- section and is provided with a forward projection 36 which is formed for the reception of a disposable anvil in a manner similar to that described in the above-mentioned patent.
  • Each of the jaw members 30 and 31 is formed of plastics material. ' In order that this may be done while still enabling the application of sufficient force between the staples and anvil, each of the upper and lower jaw members 30 and 31 is provided with a steel reinforcing plate 37 and 38 respectively, these being individually illustrated in Figures 6 and 7.
  • the plates 37 and 38 are contoured in side elevation to lie centrally of their respective jaw members and each extends from the forward extremity of the respective forward projections 34 and 36 to the rear portion of each of the jaw members, as shown particularly in Figures 3 and 5. Plate 37 is mounted with its upper
  • the reinforcing plate 38 is similarly embedded within a slot formed in the inner side of the bottom wall of the lower jaw member 31 as shown in Figures 14, 16 and 18, and similarly passes through the front wall 42 of the lower jaw member 31 to a forwardly extending portion 43 located in a slot formed in the lower surface of the forward projection 36, as shown in Figure 12.
  • the plates 37 and 38 stiffen the plastics jaw members 38 and 40 against bending, and the forward reinforcing plate portions 40 and 43 provide the necessary rigidity for the correct mounting and operation of the disposable cartridge and anvil.
  • the reinforcing plates 37 and 38 are apertured at 44 and 45 for the reception of pins 46 and 47 by which these plates are fixed to their respective jaw members, these pins 46 and 47 respectively passing through the side walls 48 and 49 of the upper jaw member 30 and the sidewalls 50 and 51 of the lower jaw member 31.
  • each of the side walls 48 and 49 of the upper jaw member 30 is downwardly extending lug 52 on each of which is integrally provided a laterally outwardly extending pin 53.
  • the clamping lever 32 which may be made of pressed metal, is of U-shaped cross-section as shown in Figure 9, having a web portion 54 and a pair of side walls 55 which extend forwardly past the web 54 to form a contoured locking portion 56 terminating in a nose 57. Penetrating each of the side walls 55 rearwardly of the nose portion 57 are coaxial apertures 58 for the reception of a pivot pin (not shown) which also passes through a pair of coaxial apertures 59 in the side walls 50 and 51 of the lower jaw portion 30.
  • the clamping lever 32 which may be made of pressed metal, is of U-shaped cross-section as shown in Figure 9, having a web portion 54 and a pair of side walls 55 which extend forwardly past the web 54 to form a contoured locking portion 56 terminating in a nose 57. Penetrating each of the side walls 55 rearwardly of the nose portion 57 are coaxial apertures 58 for the reception of a pivot pin (not shown) which also passes through a pair of coaxial apertures
  • ⁇ RI 32 is thereby pivotally attached to the lower jaw member 31.
  • the pivot pin is suitably fixed in this position, for example by means of a head and nut which bear against the external surfaces of the side walls 50 and 51.
  • lug 60 Depending downwardly from the lower edge of the rearmost portion of the upper handle portion 33 is a lug 60 on the side surfaces of which are provided coaxial pins 61 of circular cross-section.
  • pins 61 of circular cross-section.
  • longitudinally and vertically co-extensive slots 62 which are dimensioned to receive the pins 61.
  • the instrument thus far described is assembled as follows.
  • the clamping lever 32 is fixed to the lower jaw member 31 by means of the pivot pin, a staple cartridge is engaged with the forward projection 34 of the upper jaw member 30 and an anvil is engaged with the forward projection 36 of the lower jaw member 31.
  • the rear ends of the upper and lower jaw members 30 and 31 are then brought together such that the pins 31 enter the slots 62 and with the clamping lever 31 in its open position as illustrated in the solid lines of Figure 1, the upper and lower jaw members 30 and 31 are brought together with the tissue to be sutured appropriately positioned between the cartridge and anvil.
  • the clamping lever 32 is then brought to its closed position as shown by the broken lines of Figure 1, the side walls 55 of the clamping lever 32 straddling the side walls 50 and 51 of the lower jaw member 31.
  • the nose 57 rotates towards the pins 53 and engages with these pins thereby drawing together the forward projections 34 and 36 and clamping the tissue between the cartridge and anvil.
  • the clamping lever 32 is releasably fixed in its closed position by a locking arrangement which comprises a pair of longitudinally co- extensive slots 63 in the side walls 50 and 51 of the lower jaw member 31 through which passes a locking plate 64 ( Figures 21 and 22) the longitudinal dimension of which is less than the length of the slots 63.
  • the locking plate 64 projects outwardly beyond each of the side walls 50 and 51 and provided on the exposed surfaces of the plate 64 on each side of the lower jaw member 31 are a pair of actuating plates 65.
  • the locking plate 64 is assembled with the actuating plates 65 by first passing the plate 64 through the slot 63 and then attaching the plates 65 to it by means of pins 66 and correspon- ding blind holes 67 as shown in Figure 22. It will be observed (Figure 21) that the locking plate 64 extends forwardly of the foremost extremity of the actuating plates 65, and is provided with a radiused forward end 68.
  • a pair of slots 69 are provided centrally of the rear edge of the side walls 55 of the clamping lever 32 and these slots 69 are located such that in the fully closed position of the clamping lever 32, they lie on the axis of the slots 63 so that when the clamping lever 32 is moved to its fully closed position the locking plate 64 may be slid forwardly by pressure of the thumb on either side of the actuating plates 65, whereupon the end portion 68 of the locking plate 64 enters the slots 69, locking the clamping lever 32 in its closed position in a positive manner.
  • the staple and cutting blade driving mechanism is not shown in the drawings, and may be constructed in a manner similar to that described in the prior art instrument. It will be observed than an elongated slot 70 having an enlarged rear portion 71 is provided in the side wall 49 of the upper jaw member 30 for the mounting of a pusher assembly in a manner similar to that described in the prior art instrument.
  • the function of features of the instrument illustrated in the drawing but not specifically mentioned in the preceding description, such as side slots 72 provided in the mid portion of the sides of the forward projection of the lower jaw member for mounting the anvil, and the longitudinal slot 73 in the upper surface of the projection 36 for the reception of the cutting blade, will be apparent to persons familiar with the prior art instrument.
  • the instrument After the completion of a stapling operation the instrument is released from the stapled tissue by moving the locking plate 63 rearwardly by means of thumb pressure against one of the actuating plates 65 to release the rear end of the clamping lever 32, and moving this lever to its fully opened position.
  • the locking plate 63 rearwardly by means of thumb pressure against one of the actuating plates 65 to release the rear end of the clamping lever 32, and moving this lever to its fully opened position.
  • the entire instrument is constructed of plastics material and is readily disposable. It is found that the reinforcing plates 37 and 38 provide sufficient rigidity for adequate force to be applied between the cartridge and the anvil without undue bending of the forward projections 34 and 36. As in the prior art, these projections are pre-set to taper inwardly towards each other at their forward end so that their opposed surfaces are substantially parallel in operation of the instrument.

Abstract

Instrument d'agrafage chirurgical du type ayant une paire de pieces separables (30, 31) d, un corps formant respectivement des moities de poignee (33) et des machoires de support de tasseau d'une cartouche d'agrafes (34, 36) avec un levier de verrouillage (32) pour verrouiller ensemble les moities du corps avant l'ejection de l'agrafe. Les moities du corps sont faites avec un materiau plastique et sont durcies par une nervure en acier noye dans la masse s'etendant au travers d'une partie de la poignee et sur toute la partie de support de tasseau ou cartouche. Le levier de verrouillage (32) est verrouille dans sa position fermee par un dispositif de verrouillage positif (65) a l'arriere de l'une des moities (31) du corps.
PCT/AU1981/000132 1980-09-18 1981-09-17 Agrafeuse chirurgicale jetable WO1982000969A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU75844/81A AU7584481A (en) 1980-09-18 1981-09-17 Disposable surgical stapler

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU563780 1980-09-18
AU5637/80800918 1980-09-18

Publications (1)

Publication Number Publication Date
WO1982000969A1 true WO1982000969A1 (fr) 1982-04-01

Family

ID=3696109

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1981/000132 WO1982000969A1 (fr) 1980-09-18 1981-09-17 Agrafeuse chirurgicale jetable

Country Status (2)

Country Link
EP (1) EP0061466A1 (fr)
WO (1) WO1982000969A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156774A2 (fr) * 1984-03-30 1985-10-02 Senmed, Inc. Cartouche à charges multiples pour instrument chirurgical d'agrafage linéaire
EP1908414A3 (fr) * 2006-10-06 2009-10-07 Tyco Healthcare Group, LP Instrument chirurgical doté d'une surface en plastique
EP2484293A1 (fr) * 2003-10-17 2012-08-08 Tyco Healthcare Group LP Appareil d'application d'agrafes chirurgicales avec déflexion de faisceau contrôlée
EP2090253B2 (fr) † 2008-02-15 2015-01-28 Ethicon Endo-Surgery, Inc. Unités de chargement jetables pour un instrument chirurgical de découpage et d'agrafage
US9004340B2 (en) 2006-10-06 2015-04-14 Covidien Lp Surgical instrument having a plastic surface

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11033266B2 (en) 2018-08-13 2021-06-15 Cilag Gmbh International Decoupling mechanism for linear surgical stapler
US10898187B2 (en) 2018-08-13 2021-01-26 Ethicon Llc Firing system for linear surgical stapler
US11278285B2 (en) 2018-08-13 2022-03-22 Cilag GbmH International Clamping assembly for linear surgical stapler
US11045193B2 (en) 2018-10-11 2021-06-29 Cilag Gmbh International Anvil assembly for linear surgical stapler
US10905419B2 (en) 2018-10-11 2021-02-02 Ethicon Llc Closure assembly for linear surgical stapler
CN109662744A (zh) * 2018-12-29 2019-04-23 安徽麦吉恩医疗科技有限公司 吻合器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2165572A (en) * 1935-10-31 1939-07-11 William G Pankonin Stapling device
US2354760A (en) * 1941-11-25 1944-08-01 Boston Wire Stitcher Co Fastener-applying implement
GB636009A (en) * 1945-03-29 1950-04-19 Boston Wire Stitcher Co Improvements in or relating to fastener applying instruments
US3499591A (en) * 1967-06-23 1970-03-10 United States Surgical Corp Instrument for placing lateral gastro-intestinal anastomoses
DE1566175A1 (de) * 1966-10-10 1972-03-16 United States Surgical Corp Geraet zum Anlegen von seitlichen Anastomosen an Koerperorganen
AU4406079A (en) * 1978-11-17 1980-05-22 Senco Products Inc. Disposable surgical stapling instrument
AU6192780A (en) * 1980-02-05 1981-08-13 United States Surgical Corporation Surgical staples

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2165572A (en) * 1935-10-31 1939-07-11 William G Pankonin Stapling device
US2354760A (en) * 1941-11-25 1944-08-01 Boston Wire Stitcher Co Fastener-applying implement
GB636009A (en) * 1945-03-29 1950-04-19 Boston Wire Stitcher Co Improvements in or relating to fastener applying instruments
DE1566175A1 (de) * 1966-10-10 1972-03-16 United States Surgical Corp Geraet zum Anlegen von seitlichen Anastomosen an Koerperorganen
US3499591A (en) * 1967-06-23 1970-03-10 United States Surgical Corp Instrument for placing lateral gastro-intestinal anastomoses
US3499591B1 (fr) * 1967-06-23 1988-09-20
AU4406079A (en) * 1978-11-17 1980-05-22 Senco Products Inc. Disposable surgical stapling instrument
AU6192780A (en) * 1980-02-05 1981-08-13 United States Surgical Corporation Surgical staples

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156774A2 (fr) * 1984-03-30 1985-10-02 Senmed, Inc. Cartouche à charges multiples pour instrument chirurgical d'agrafage linéaire
EP0156774A3 (fr) * 1984-03-30 1986-12-10 Senmed, Inc. Cartouche à charges multiples pour instrument chirurgical d'agrafage linéaire
US10154843B2 (en) 2003-10-17 2018-12-18 Covidien Lp Surgical fastener applying apparatus with controlled beam deflection
US9241711B2 (en) 2003-10-17 2016-01-26 Covidien Lp Surgical fastener applying apparatus with controlled beam deflection
EP2484293A1 (fr) * 2003-10-17 2012-08-08 Tyco Healthcare Group LP Appareil d'application d'agrafes chirurgicales avec déflexion de faisceau contrôlée
EP2570087A1 (fr) * 2003-10-17 2013-03-20 Covidien LP Appareil d'application d'agrafes chirurgicales avec déflexion de faisceau contrôlée
US10835252B2 (en) 2003-10-17 2020-11-17 Covidien Lp Surgical fastener applying apparatus with controlled beam deflection
EP3138511A1 (fr) * 2003-10-17 2017-03-08 Covidien LP Appareil d'application d'agrafes chirurgicales avec déflexion de faisceau contrôlée
US9033202B2 (en) 2006-10-06 2015-05-19 Covidien Lp Surgical instrument having a plastic surface
JP2015083166A (ja) * 2006-10-06 2015-04-30 コヴィディエン リミテッド パートナーシップ プラスチック面を有する外科用器具
US9022271B2 (en) 2006-10-06 2015-05-05 Covidien Lp Surgical instrument having a plastic surface
EP2335606A1 (fr) * 2006-10-06 2011-06-22 Tyco Healthcare Group, LP Instrument chirurgical doté d'une surface en plastique
JP2015083167A (ja) * 2006-10-06 2015-04-30 コヴィディエン リミテッド パートナーシップ プラスチック面を有する外科用器具
US9004340B2 (en) 2006-10-06 2015-04-14 Covidien Lp Surgical instrument having a plastic surface
US9814461B2 (en) 2006-10-06 2017-11-14 Covidien Lp Surgical instrument having a plastic surface
EP1908414A3 (fr) * 2006-10-06 2009-10-07 Tyco Healthcare Group, LP Instrument chirurgical doté d'une surface en plastique
US10542975B2 (en) 2006-10-06 2020-01-28 Convidien LP Surgical instrument having a plastic surface
US11134939B2 (en) 2006-10-06 2021-10-05 Covidien Lp Surgical instrument having a plastic surface
US11350930B2 (en) 2006-10-06 2022-06-07 Covidien Lp Surgical instrument having a plastic surface
EP2090253B2 (fr) † 2008-02-15 2015-01-28 Ethicon Endo-Surgery, Inc. Unités de chargement jetables pour un instrument chirurgical de découpage et d'agrafage

Also Published As

Publication number Publication date
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