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Publication numberUS3275211 A
Publication typeGrant
Publication date27 Sep 1966
Filing date10 May 1965
Priority date10 May 1965
Also published asDE1541175B, DE1791230A1, DE1791230B2, DE1791230C3
Publication numberUS 3275211 A, US 3275211A, US-A-3275211, US3275211 A, US3275211A
InventorsOurednik Frank, Leon C Hirsch
Original AssigneeUnited States Surgical Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Surgical stapler with replaceable cartridge
US 3275211 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

' Sept. 27, 1966 L. c. HIRSCH ETAL SURGICAL STAPLER WITH REPLACEABLE CARTRIDGE Filed May 10, 1965 2 Sheets-Sheet 1 INVENTORS LEON C. HIRSCH FRANK OUREDNIK ATTORNEYS Sept. 27, 1966 L. c. HIRSCH ETAL 3,275,211

SURGICAL STAPLER WITH REPLACEABLE CARTRIDGE Filed May 10, 1965 2 Sheets-Sheet 2 INVENTORS LEON C. HIRSCH FRANK OUREDNIK ORNEYS United States Patent 3,275,211 SURGICAL STAPLER WITH REPLACEABLE CARTRIDGE Leon C. Hirsch, Scotch Plains, and Frank Ourednik, Union City, N.J., assignors to United States Surgical Corporation, Baltimore, Md., a corporation of Maryland Filed May 10, 1965, Ser. No. 454,300 8 Claims. (Cl. 227124) The present invention relates to medical instruments, and more particularly to instruments for stitching, through a stapling process, hollow organs as for example, the bronchial stump, by means of a U-shaped staple.

The invention has, as a particular object, the incorpo ration of readily removeable cartridges of novel construction which contain the staples, as a magazine and is an improvement over the removeable cartridge instrument of United States Patent No. 3,080,564, for Instrument for Stitching Hollow Organs to Strekopitov et al. In the referenced patent, the cartridge is replaceable, but requires the disassembly of the instrument to remove the same. A disadvantage attendant with such structure resides in the time consumed in changing cartridges, during the actual stitching portion of an operation, in which a greater number of staples is required than are contained in a single cartridge.

Briefly, the invention comprises a staple-carrying cartridge equipped with rails adapted to fit grooves of the instrument which rather snugly receive the cartridge; in addition, the instrument is provided with pin retaining means in alignment with recesses in the cartridge such that a pin may fix the cartridge to the instrument in precise alignment in its operative or suturing position. Removal of the cartridge is readily effected by withdrawing the pin and extracting it from the instrument guideway.

In .a further embodiment of the invention, the cartridge is arranged to be locked into the aligned position by pin means which protrude beyond the cartridge to serve as flesh retaining means in co-operation with a fixed jaw serving as the anvil for the staple clinching operation.

With the foregoing in mind, it is an object of the invention to provide an instrument for stitching hollow organs with staples, which instrument incorporates a readily replaceable staple magazine or cartridge.

Another object of the invention is the provision of readily replaceable staple cartridges of the disposable type, if desired, which may be factory loaded and sterilized.

An additional object of the invention is the provision of such a cartridge adapted for positive positioning in a surgical stapling instrument to close tolerances.

It is a further object of the invention to provide such an instrument which may be inserted through relatively small incisions and manipulated to grip the parts to be sutured, and thereafter operated by one hand to drive and clinch the staples in place.

Further objects and advantages of the invention will be apparent from the following description, when taken in conjunction with the accompanying drawing, wherein:

FIG. 1 is a view in perspective of an instrument incorporating a replaceable cartridge in accordance with the present invention;

FIG. 2 shows the staple driver which is contained internally of the structure of FIG. 1;

FIG. 3 is a front view of the cartridge of FIG. 2;

FIG. 4 shows the cartridge of FIG. 1, in perspective;

FIG. 5 shows, in perspective, a modification of the forward end of the instrument of FIG. 1, incorporating a modified cartridge, which includes a flesh retaining feature;

3,2 75,2 1 l Patented Sept. 27, 1366 FIG. 6 is a view similar to FIG, 4, with the cartridge partially inserted;

FIG. 7 shows the structure of FIGS. 5 and 6, with the cartridge fully seated, in its aligned position;

FIG. 8 is a front elevational view of the anvil;

FIG. 9 is a front elevational view of the cartridge;

FIG. 10 is a plan view of the cartridge of FIG. 8; and,

FIG. 11 shows a sectional view of a portion of the anvil of FIG. 8.

With reference to the drawing, there is shown in FIG. 1 an instrument for stitching hollow organs with staples, which comprises an elongated body 10. The body portion 10 is generally rectangular in section and terminates at its forward end in a jaw portion 11.

The elongated body portion 10 terminates at its rear end in an enlarged, generally rectangular yoke 12, having side walls 13 and 14 disposed outwardly of the body portion 10. The yoke 12 is provided with a rear end wall 17, spaced from the body portion 10, to provide a vertical passage through which a threaded portion 15, associated with internal structure, is adapted to move.

The body portion 10 is provided with an upwardlyopening channel 21, extending between the jaw portion 11 and the yoke 12, through which an elongated bar 33 is adapted to move in a reciprocal fashion.

The jaw portion 11 comprises an elongated member 24 fixed, or integrally formed at an angle, with the forward lower edge of the body portion 10, This member 24 terminates in an upstanding fixed jaw 26, the rear surface of which is provided with a plate or the like 27, which, in turn, is provided with a plurality of horizontal- 1y spaced staple clinching anvils in the form of spaced apart grooves adapted to receive the edges of staples for turning the same inwardly in a clinching motion. FIGS. 8 and 11 illustrate typical grooves for a modified form of the invention.

The forward end of the body portion 10 is equipped with upstanding spaced elongated cars 29 and 30, which ears include inwardly-opening grooves, such as 31.

The elongated bar 33 includes an internal bore (not shown) extending therethrough, which is adapted to receive the shaft 32 (FIG. 2) incorporated in the staple driver assembly. The elongated bar 33 is also rnoveable longitudinally within the body portion 10 to translate its rectangular hollow head 35 relative to the fixed jaw 26. The head 35 is open at its forward end and is equipped with guides 34 and 36, adapted to receive the staple magazine or cartridge 42 (see FIG. 4).

The lower edge of the head 35 is provided with a groove (not shown) for slidably receiving the rib 28, which uprises on the elongated member 24 of the jaw portion 11. The elongated bar 33 is equipped with projections or lugs, such as 57, which fit the grooves, i.e. 31, to confine reciprocating movement of the bar 33 relative to the instrument. Lugs, such as 56, located near the rear of the instrument also serve to locate the member 10.

The staple magazine 42 of FIGS. 3 and 4 comprises a U-shaped body portion 43 including outwardly-extending rails 44 and 45. In addition, a planar plate 46 is attached to the body portion 43 in spaced apart relation to the rail 44 and 45, to form grooves therebetween, and it generally overlaps or extends beyond the body portion 43. The U-shaped body portion 43 is provided with a plurailty of vertically spaced grooves 47 for receiving staples 48, and the grooves 47 terminate in slots 49, which penetrate the face or planar plate 46 (FIG. 3). The staples 48 may be of tantalum wire or other suitable material.

The anvil plate 27 includes spaced apart grooves, generally conforming to the opposed extremities of the slots 49, to receive the staple ends and turn them inwardly when the cartridge 42 is in proximity with the fixed jaw 3 26 and the staple driver 32 is driven forwardly to mash the staples 48 forwardly of the magazine 42 and against the grooves of anvil 27.

This forward drive is effected through the staple driver 32, which is adapted to be contained within the bore (not shown) of the elongated bar 33. Thus, the bar 33 terminates in the threaded portion 15, which is adapted to receive the wing nut 51 for fixing the position of the head 35, relative to the fixed jaw 26.

The staple driver shaft 32 is provided with a slot 53 (FIG. 2), which is adapted to receive the upper extremity or camming portion 54 of a trigger 67.

It may be appreciated that rotation of the wing nut 51 will operate to move the bar 33 and the head 35 on the end thereof longitudinally of the body 10, to a suitable flesh clamping position preparatory to stitching.

Adjacent to the rear end of the bar 33, there is provided a downwardly-projecting fixed handle 55, shown disposed .at an angle convenient for use. The handle 55 may be formed integrally with the bar 33 or rigidly secured thereto. The oppositely extending projections, such as 56, are provided on the handle 55 to slidably support the lower edge of the body 10, relative to the handle, as explained. Similar projections communicate with the grooves 31 (for example, see projection 57), to orient the body to the bar 33 for longitudinal movement relative thereto, also as discussed previously.

Downwardly-extending spaced plates 59 and 60 are provided forwardly of the handle 55 and include opening aligned slots, such as 61. These slots receive the projec- .tions, such as 62, on the trigger 67 whefi its upper portion 54 (see FIG. 2) is guided into the slot 53 of the staple driver 32; the trigger 67 is held in this interlocked or operative position by an elongated leaf-type return spring :5 bearing against the rigid post 73, fixed on the han- The staple driver 32, illustrated in FIG, 2, comprises an elongated rod 63 adapted to be s-lidably recevied in the bore (not shown) of the bar 33. The forward end of the rod 63 includes a generally rectangular driver member 64, adapted to be slidably received in the head- 35 on the forward end of the bar 33. The forward edge of the driver member 64 is provided with a plurality of spaced spaced apart staple driving blades or fingers 65 adapted, respectively, to fit into the slots 47 of cartridge 42 (FIG. 4) and force the staples, such as 48, out of the cartridge.

In order to prevent inadvertent movement of the actuating handle or trigger 67 toward the fixed handle 55, there is provided an abutment 74 on the fixed handle 55 and a stop member 75 pivotalljy secured to the actuating handle 67. The stop member 75 may be moved downwardly by handle 76 pivoting about pivot axis 77, to strike against abutment 74 to preclude triggering of the device.

In utilizing the instrument for stitching hollow organs, it is assumed that the staple magazine 42 has been filled witlrstaples, under sterile conditions, and is in proper position on the instrument, as shown in FIG. 1. The aw portion 11 of the instrument is inserted through the incision (not shown), and the fixed jaw 26 is engaged w th one side of the organ to be stitched. Thereafter, wing nut 51 is employed to move the head 35 and staple magazine 42 toward the fixed jaw 26 and into engagement with the opposite sides of the organ or organs to be stitched, thereby clamping the same between the maga- Zinc 42 and the fixed jaw 26. The finger engaging member or crank 76 is operated to move the stop member 76 out of engagement with abutment 74 to permit operation of the actuating handle or trigger 67, which is then pressed toward the fixed handle 55, thereby moving the rod 63 forward through ca-rnming action of the stop portion 54- of trigger 67 against the forward end of slot 53 in driver 32 (FIG. 2). The blades or fingers 65 eject the staples 48 from the magazine 42, simultaneously, to pierce the walls of the organs to be stitched, and the staples thereafter engage the anvil plate 27 (better illustrated, for a different embodiment, in the detailed showing of FIG. ll) to clinch the same and complete the stitching operation. The nut 51 may then be operated to retract the head 35, and the magazine 42 from the fixed jaw 26, and the instrument removed from the incision.

In order immediately, to replace the unloaded cartridge 42 with a fully loaded and sterilized cartridge, it is only necessary to retract the pin 81 from its seat in the two apertures 83 and 85 (FIGS. 1 and 4). This permits the cartridge 42 to be slid out of head 35 with its rails 44 and 45 disposed inwardly of guides 34 and 36 and its planar plate 46 disposed outwardly thereof, thereby utilizing a guideway principle. The guideway facilitates the immediate insertion of a loaded and sterilized cartridge and it is readily locked into its aligned position by forward motion of the pin 81 to seat in the recesses 83 and 85 (FIG. 4).

It will be appreciated, of course, that the tines of the pin 81 are preferably resiliently biased apart, the pin being of spring steel, or the like, such that it locks itself into the position where placed. Thus, the tines not only serve to preclude removal of the cartridge 42, but also serve, rather snugly, to fix it in the aligned position because of alignment of the tine apertures (not shown) through head 35 with the apertures 83 and 85 of cartridge 42, as well as the resiliency exhibited by the pin 81 in pressing outward-1y against the inner portion of rails 44 and 45 of the cartridge 42.

A modification of the invention relating to the jaw portion 11' of the instrument, :as well as the cartridge 42, is shown in FIGS. 5-1l. In these views, the pin 81' is adapted to serve the dual-fold functions of retaining the cartridge 42' in precise alignment while also providing a flesh retaining structure, because the pin 81' extends beyond the cartridge 42 and engages notches 101 and 103, carried by the upper end of the fixed jaw 26'.

More particularly, the modifications which permit the foregoing attendant functions reside in the provision of cars 104 and 105 (FIG. 5) formed on the upper extremity of the head 35, which ears include the passageways 106 and 107 for the tines 108 and 109 of pin 81.

While the cartridge 42 is readily removeable and replaceable in similar manner to that of cartridge 42, as is apparent from a consideration of FIGS. 5, 6 and 7, where a cartridge 42 is being inserted into the instrument, nevertheless, it will be appreciated that certain changes have been made. In the first place, the staple slots or apertures, such as 49, are now arranged vertically in spaced apart positions and, preferably in staggered de lo ment. This is best shown by viewing the face plate 46 of the cartridge 42' as illustrated in FIG. 9, wherein it will be noted that the slots 49' include a thicker central opening portion 110 with apertures 111 on each end to facilitate loading. The staples (not shown) actually fit within the apertures 111, but may be introduced through the thicker opening 110 to speed up loading. The right hand row of staple slots 49' is adapted to mate with the left hand row of anvils 113 in anvil plate 27' when the cartridge is in its opposed relation to the anvil plate 27, the latter being adapted to be incorporated on the inner side of fixed jaw 26'. Thus, two anvils or indentations, as best shown in the detailed view of FIG. 11, are provided for each staple, such that the ends thereof are inturned, during the clinching operation.

Although this particular configuration for the staple slots is illustrated, it will be appreciated that the configuration previously described can be employed with the cartridge 42, or the slot and anvil configuration of FIGS. 8 and 9 can readily be employed with the cartridge 42 previously described.

Also,-from FIGS. 9 and 10, it may be appreciated that the apertures or openings 106 and 107 in the cartridge 42 1. accommodate the tines 108 and 109 of pin 81 are formed in the opposed peripheral edges of face plate 46', as at 106 and 107 (FIG. In this embodiment, the tines actually wedge the cartridge 42' to the head 35' by filling the apertures 106' and 107' while also extending sufficiently therebeyond to perform the flesh retaining function with respect to the tissue to be joined.

It will be obvious to those skilled in the art that various changes can be made in the invention without departing from the spirit and scope there-of, and therefore, it is intended that the invention not be limited by the illustrated and described embodiments, but rather by the appended claims, wherein:

What is claimed is:

1. A staple cartridge, comprising a body portion of generally U-shaped cross section; a plurality of aligned staple retaining slots penetrating the body portion; a pair of rails disposed in spaced apart relation along .the body; and a planar plate aflixed to the body portion in spaced apart relation with the rails and protruding beyond the lateral dimension of the body portion to form grooves between it and each of the rails, said body portion being recessed to receive pin means.

2. A staple cartridge, comprising an elongated body portion of generally U-shaped cross section; a plurality of aligned slots penetrating the body and each adapted to receive and retain a staple; a pair of rails oppositely disposed along the body and extending the length thereof; and a planar plate afiixed to the body portion in spaced apart relation with the rails and extending the length thereof and protruding beyond the lateral dimension of the body portion to form grooves between it and each of the rails, said body portion being recessed to receive pin means.

3. A staple cartridge, comprising an elongated body portion, said body portion including a plurality of aligned slots penetrating it with certain of said slots adapted to receive and retain staples, respectively; a pair of rails oppositely disposed along the body portion; a planar plate comprising one face of the body portion in spaced apart relation with the rails and protruding beyond the lateral dimension of the body portion to form grooves between it and each of the rails, at least one of said slots in said body portion being adapted to receive pin means.

4. A staple cartridge, comprising an elongated body portion of generally rectangular cross section; said body portion including a plurality of aligned slots penetrating the body portion with each slot adapted to receive and retain a staple; a pair of rails oppositely disposed along the body portion and extending the length thereof in spaced apart relation; a planar plate comprising the face of the body portion in spaced apart relation with the rails, and extending the length thereof, and protruding beyond the lateral dimension of the body portion to form grooves between it and each of the rails, said body portion and face being apertured to receive pin means adapted to penetrate the cartridge.

5. A staple cartridge, comprising an elongated body portion of generally rectangular cross section; said body portion including a plurality of aligned slots, each spaced from the other, penetrating the body portion with each slot adapted to receive and retain a staple; a pair of rails oppositely disposed along the body portion and extending the length thereof in spaced apart relation; a planar plate comprising the face of the body portion in spaced apart relation with the rails and extending the length thereof, and protruding beyond the lateral dimension of the body portion to form grooves between it and each of the rails, said body portion being apertured to receive pin means, and said face being peripherally grooved in alignment with the body portion apertures to extend the same to penetrate the cartridge, and pin means adapted to extend through the apertures and extend beyond the cartridge.

6. An instrument for stitching hollow organs with staples, comprising an elongated body terminating at the forward end in a jaw portion and at the rear end in an annular generally rectangular yoke having side walls disposed outwardly of the side walls of the body and a rear end wall spaced from the rear end of the body to provide a vertical passage through said yoke, said rear end wall having an upwardly opening notch, said body having an upwardly opening channel extending between said jaw portion and said yoke, the bottom Wall of said channel having a slot communicating with the passage in said yoke, said jaw portion comprising an elongated member fixed to the lower forward edge of said body and terminating in an upstanding fixed jaw, staple clinching anvils on the rear surface of said fixed jaw and an upstanding longitudinal rib on said member between said body and said fixed jaw, upstanding spaced elongated ears on the upper edge of said body adjacent said jaw portion, said ears having opposed inwardly opening grooves, an elongated bore containing bar removeable and slidably received in said channel, said bar terminating at the forward end in an enlarged, generally rectangular head, open at the forward end and received in said jaw portion and having a groove in the lower edge slidably receiving said rib; lugs on said head slidably received in the grooves in said ears, said head including a vertical recess in its forward end with opposed slots in communication with the recess to serve as a guideway, a staple magazine comprising an elongated block having a plurality of spaced apart slots therethrongh for receiving staples, said block being received in the forward end of said head in said guideway, said head including spaced apart apertures therethrongh opening into the guideway, said staple magazine including recesses in alignment with said openings, pin means adapted to extend through the head and into said recesses to lock the cartridge in the passageway, the slots in said block being disposed opposite said anvil, the rear end of said bar terminating in a threaded portion, a nut on said theraded portion, a portion of said nut being received in said notch and having an annular groove receiving the side wall of said notch, whereby rotation of said nut will move said head toward or away from said fixed jaw, a fixed handle on said bar projecting downwardly through said vertical slot in. said body, projections on said handle slidably engaging the lower edge of said body, said lugs and said projections serving to retain said bar in said channel, downwardly-extending spaced .plates on said bar adjacent said handle, downwardly-opening aligned slots in said plate, said bar having a vertical aperture between said plates, a staple driver comprising an elongated rod slidably received in said bar and terminating at the forward end in a driver member slidably received in said head, a plurality of staple driving fingers on said driver member aligned with the slots in said magazine, the rear end of said rod having a vertical slot in alignment with said aperture, an actuating handle having a pivot pin removeably received in the slots in said plates, the upper end of said actuating handle extending through said aperture and opening, and a return spring on said actuating handle engaging an abutment on said fixed handle, whereby upon operation of said actuating handle said fingers will simultaneously eject staples from all of the slots in said magazine.

7. The instrument of claim 6, wherein the recesses of said magazine do not penetrate the magazine and said pin in its locked position enters the magazine.

8. The instrument of claim 6, wherein said recesses penetrate the magazine and said pin has a length sufficient to extend through and project beyond the block and magazine to serve as flesh retaining means in conjunction with the fixed jaw.

No references cited.

GRANVILLE Y. CUSTER, JR., Primary Examiner.

Non-Patent Citations
Reference
1 *None
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Classifications
U.S. Classification227/124, 206/341, 227/19, 227/120
International ClassificationA61B17/068, A61B17/072
Cooperative ClassificationA61B17/072, A61B2017/07228
European ClassificationA61B17/072