US2096173A - Surgical clip applier - Google Patents

Description

Oct. 19, 1937. R. GUERRINI SURGICAL CLIP APPLIER Filed April 2o, 1935 2 Sheets-Sheet` 1 enza Guerrini Oct. 19, 1937. R GUERRlNl SURGICAL CLIP APPLIER Filed April 20, 1955 2 Sheets-Sheet 2 lllffhwfulw Renzo Guerrini most clip 1 to enter freely between them under-Y 'the pressureof the springl 5, whereupon'the received clip is prevented from furtheradvancing.Y

Y 'o pressing ofthe limbs Vtoward each-'other and thef.

" deformationofthe grippingrmembers; 'Y

YY Ycut out' 22 of the corresponding' wall."V Two limbs 'of thefmagazineon opposite jsides thereof, by" [means of screws 25,:solderingfetc. VThe limbs are', Y inwardly exed at the lower extremities thereof 'at ,Y right angles, and tapered toward the free Vends Y Vthereof f whereby the latten-areableV t enterY Vgrooves 2B provided in theside walls of the maga'- zine I8. The tapered off end :of eachv ofthe vs'aidY Y 'limbsvizQ the end enteringl Ythe said grooves- Y terminates ina small rounded jaw 21 to accommo# Y In this position the Yjaws V8 permitYthe lower- When 'the pawls I4 'are Ypressed Yupwardly Vthe holding action thereof'isinterrupted, but this Y I action is restitutedYwhenthe pawlsare depressed '-vagain. Y ,-Y

' Thefportion ofi each jof the, limbs I0 comprised Y between the'knurled knoband the:Y flexed vportion:v

9 is likewise knurled externally, toifacilitatefthe As shownr in Fig. 4, the two longitudinal walls, of the magazine I are provided at the lower edges thereof with arch-shapedrcut outs which allow, ,the skin'of being raised on the action of the pincette. Y Y Y f f,

j Y'The embodiment ofthe invention illustrated in` Figs. 6l8l comprises likewise a clip magazine for gripping 'members piled Yup; oneY `on topY Yoi' Y the vided' two arms pivotedtov thelimbs, respectively,

, to limit the opening of the limbs. The usual ree- Y tangular magazine I8 is provided, with two longi-Y tu-dinal grooves I92U in opposite walls, respectively,andoarch-shaped cut outs 22 atthe lower Y edges of-thelatter.Y 1 The groove I9Y terminates shortly before the lowerend'of the magazineV whereas thegroove 20 opens into the arch-shaped YorV branches are suitablylafiixed at the upper part date, respectively, theftwo` curved extremities of Y Y 55 Y magazineV I8 below the terminal point of groove Y I9 and passesV the Z shaped slots 30. `A spring 34, wound about'a screw 35, is located below the arms @tween the jaws.

Vthe last gripping membeni. e. of the-oneready to .beY applied. The limbs are of resilient material andhave the tendency to divaricate their lower extremities, soV asto withdraw the jaws `21Yfrom 'the opening of the magazineV I8.--

' Two arms, a left arm 28 and a righthone 29 are Y pivotedto thelimbs 23, 24, respectively, shortly above the YiiexuresV thereof, Vso as lto project inwardly adjacent the wall of the magazine in which the groove I9 is` provided. These arms are enlarged at their freeends and provided with Z shaped apertures-30 in the enlarged portions (see Figs.` l2-and 14). A screw 32 is secu/red'to the 28 and 29 and presses therlatterupwardly,,whereby the inner end walls of the Ylower slot portions 3I abutvagainst the screw 32 and hold the arms 28, 29 the limbs23, 24 and the jaws 21 against the divaricating tendency of the limbs in a predeterminedpo'sitiornin which the lowermostrclipjcan Y Venter between theY jawsj21 but Yca mot pass the same. The cooperation of screw 32and1ower slot portions 3l does not preventfinward movement Y of the arms 28, 2,9 when pressure is exerted 'on the knurled portions '33, 33`of the limbs 23 and 24,` Yin order to deform the lower'most clipdisposed be- The left arm 28 is bent over after the fashion of a roof or ledge 4 8; When thelarms 2 8, V249A are depressed by nger pressure upon thel roof 4 8,`the rupper portions 49 of the-slots3 are'brought'in alignment with the screw and the'arms and,"Y Y

limbs can vyield further to Ythe divaricating tend-Vv Y VVency of the latter. YConsequently the jaws 21 are v automatically withdrawn from the Yopening Vof ,the

magazinev I8 and thelatter is free to receive a new charge of clips.Y Y, Y

` Within the magazine movesapressure` or sliding v v, g organ constitutedby a small block 36 .provided at j its vupper part v and, centrally, `:throughout'the ,Y

length thereof with a groove r31 fand Vinfsaid groove' l0v with a small vertical YslotY 38;` Arhorizontal bore' p saidV pin and penetrateswith 'its Vother fend finto 270 the openingf38 in the sliding block. This spring,`of Y courseYremains"hoYused within thek groove 31`jof j i Y the sliding or pressureblockr Theblock is guided o within the'mag'azine by thejpawl 4 I-,which moves j in the groove 2l),` and by aV screw 401, 'screwed-into, 25`

, the headof the pin 40 moving-along the grooveIQ.- Y Y AspiralspringIS-constantly depressiesthe-presg V- sure orr's'liding block. Y The ,te'ethlf the rackare`Y Y Y'arranged insuch a manner,v thatjtheyfpermit Y downward movement of theblock',Y but prevent the 30 Y Vlatter fromfany return'movement, viz;V from'being pushed upwardly from belowQY-lnrder to enable",` Y VY Y Vthe said slider tomove back freelyythepawl Y4I must-be sormanipulatedas to leave the tooth 42 Y Y. disengaged-whereupon it mayY be pushed in an 35'.VA

Vupward direction and-'when the apparatus is Ybe'- ingcliarged-the pawl 4I may be caused to rest on thei portion 46 of thegroove 2 I. f Y Y, Y

Thousfthe entire spring 475 is;compressedY and the lower magazine isifreerto Vbecrharged. Y At its upper partthe magazine carriesa small Vclosing plate 41 tted anywise,"dqai'utailedY forV instance, which serves thel purpose,V onV its re\ Y moval, of enabling' theYins'ertionA of the spring,

and of retainingsaid springat the'ru'pper por-` '45 Y Y- tion-of themagazineY` Y o Y In using a pincette according tothe present invention the lower mouth of the appliance is placed upon the partt'o be sutured, while the twol Y limbs ofthe pincette are 'pressed togetherlwith 50 one hand, whereby both extremities of the limbs of the pincette press upon the gripping rmelnber which presents itself,'therebyrcompelling theV same to bend; hereupon, the two points or tips' of theY cuppenetrate intoV the skin and, inVV I bending, raise theskin itself, and bringthe'two margins into apposition so thatYthe part is raised, Y

entering the arch of the pincette' (HandY 22). When the limbsV are released again, the applied clip remains iin vthe ilesh and the nextV following VV gripping member of the pile, being pushed Yfor= ward by thespring, descendsbetween Vthe j aws, Y. where it is held against further advancing.Vv Y Having now particularly,Y described and ascerl tained thejnature .of myusaidinvention andjiin f Y what manner lthe same is to beperforrned, ifdef clare that what'I claim is; Y 'Il Y, 1V.Y A [device for applying VagraffesvsuccessivelyY f Y Y to a wound,w comprising asiibstantially straight Y Y .magazine adapted to accommodate'a plurality 70 of agraffes arranged Yone on top ofrthe other, said magazine having an outlet opening'at its end,

resilient means withinYsaid magazine for urging f Y said pile of agraffes toward said opening, `and, a. i pair of opposed pincette limbs articulated :to'op 7'5 posite sides of the magazine, respectively, the free ends of said limbs beingvbent at right angles toward each other to form jaws alongside of said y outlet opening, said limbs having a resilient tendency to withdraw said jaws from said opening and being adapted to be pressed toward eachother to deform an agraire inserted between said jaws, and releasable stop means holding said limbs and jaws against said withdrawing tend` ency in a predetermined position.

2. A device for applying agraffes successively to a wound, comprising a substantially straight magazine adapted to accommodate a plurality of agraies arranged one on top of the other, said magazine having an outlet opening at its end, resilient means within said magazine for urging said pile of agraies toward said opening, a pair of opposed resilient pincette limbs articulated to opposite sides of the magazine,respectively, the free ends o1Y said limbs being bent at right angles toward each other to form jaws alongside of said outlet opening, said limbs having a resilient tendency to kwithdraw said jaws from said opening and being adapted to be pressed toward each other to deform an agraffe inserted between said jaws, and releasable stop means holding said limbs and jaws against said withdrawing tendency in a predetermined position, said stop means including aligned slotted arms carried by said limbs, respectively, and a pin carried by the magazine and extending through both slots.

3. A device as set forth in claim 2, in which each of said slots is of zigzag shape, said arms and limbs being normally held in said predetermined position by the lower portions of said slots' in cooperation with said pin, but adapted to yield to the divaricating tendency of said limbs, when said arms are depressed to bring the upper por# tions of said slots in alignment with said pin.

4. A device for applying agraffes successively to a wound, comprising a substantially straight magazine adapted to accommodate a plurality of agraies arranged one on top of the other, said magazine having an outlet opening at its end,

resilient means within said magazineV for urging said pile of agraies toward said opening, two movable jaws at opposite sides of said opening' adapted to be pressed toward each other to dee; form a clip inserted between them, means to hold said jaws normally in a predetermined position, said jaws being formed to permit the lowermost agraie to enter freely between them and then to prevent the same from further advancing; when they are in said predetermined position, a slidable block interposed between said resilient means and the topmostfagraffe of said pile, and releasable means on said block for preventing retractive movement thereof.

5. A device for applying agrafies successively to a wound, comprising a substantially straight magazine adapted to accommodate a plurality of agraffes arranged one on top of the other,I

said magazine having an outlet opening at its end, resilient means within said magazine for urging said pile of agraies toward said opening', a pair of opposed pincette limbs articulated to opposite sides of the magazine, respectively, said limbs being provided with means alongside of said outlet opening for normally engaging and supporting the lowermost agraffe, a slidable block interposed between said resilient means and the topmost agraiTe of said pile, said block having a projecting pin and Said magazine having a guide groove for said pin, a rack along said groove, and a tapered pawl carried by said pin and provided with a tooth engageable with said rack.

6. A device as set forth in claim 5, in which the upper end of said groove has a lateral portion into which said pawl may be shifted when it and the block are at their uppermost position.

7. A device as set forth in claim 1, in which said stop means comprises a pair of pawls pivd oted to said magazine and releasably engaging* said-1imbs, respectively.

8. A device for applying clips successively to a wound, comprising a magazine adapted to accommodate a plurality of clips, arranged one on top of the other, said magazine having an outlet opening at its end, resilient means for urging said pile of clips toward said opening, two movable jaws at said opening having a tendency to resiliently withdrawfrom the latter and being adapted to be pressed toward each other to deform a clip inserted between them and releasable stop means holding said jaws against said withdrawing tendency in a predetermined position, said jaws being formed to permit the lower-l most clip of freely entering between them and then to prevent the same from further advancing, when they are in said predetermined position. l

9. A device, as set forth in claim 2, in which each of said slots is of zig-zag shape, said device comprising further a spring on said magazine pressing said slotted arms upwardly to keep normally the lower portionsof said slots in engagement with said pin whereby said arms and limbs are held in said predetermined position, said arms being adapted to yield tothe divaricating tendency of said limbs, when said arms are depressed against said spring to bring the upper portions of said slots in alignment with said pin.

10. A device, as set forth in claim 2, in which each of said slots is of zig-zag shape, said arms and limbs .being normally held in said predetermined position by the lower portions of said slots in cooperation with said pin and one of said arms having a roof-shaped horizontal projection facilitating depression of said arms in order to bringv the upper portions of said slots, in alignment with said pin, whereupon said arms and limbs can yield to the divaricating tendency of the latter.l

RENZO GUERRINI.

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