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Publication numberUS3608554 A
Publication typeGrant
Publication dateSep 28, 1971
Filing dateDec 22, 1969
Priority dateDec 22, 1969
Also published asDE2060814A1
Publication numberUS 3608554 A, US 3608554A, US-A-3608554, US3608554 A, US3608554A
InventorsMcguinness Michael G, Pilling William H
Original AssigneePilling Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Surgical clamping means
US 3608554 A
Images(1)
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Description  (OCR text may contain errors)

ilnited States Patent inventors Appl. No.

Filed Patented Assignee Michael G. McGuinness Cornwells Heights;

William 11. Pilling, Ardmore, both 01 Pa.

Dec. 22, 1969 Sept. 28, 1971 Pilllng Co.

Fort Washington, Pa.

SURGICAL CLAMPING MEANS 248 BB, 248 SC; 128/321, 322, 323, 324, 325,

References Cited UNITED STATES PATENTS English Baker Kapp Wood...

Mallina Primary Examiner-Channing L. Pace Attorney-Bustier, Smith 8!. Harding ABSTRACT: A surgical clamping means is provided with serrated jaws presenting to body tissues surfaces which are relatively rounded rather than sharp to avoid damage to the tis sues while nevertheIess effecting secure clamping action by presenting pocketlike regions within which expanded portions 'of the tissues are clamped.

PATENTEU SEFZBIH?! (608,554

INVENTORS Ml EL (5. MCGUINN 8| ILLIAM H. PILLI ATTORNEYS SURGICAL CLAMPING MEANS FIELD OF THE INVENTION The invention relates to surgical clamping means adapted to clamp tubular vessels of the body or other tissues during surgery with avoidance of damage thereto.

DESCRIPTION OF THE PRIOR ART Surgical forceps and other surgical clamping means have been made with a great variety of types of jaws having variously grooved, serrated, perforated or the like surfaces for the purpose of securing reliable holding despite slipperiness of vessels or other tissues which are clamped. Many of these have had the fault that when in use with sufficient application of force to prevent slippage they have damaged the clamped tissues either by penetrating or cutting them or by squeezing them too tightly with a crushing action.

Such damage has been avoided to a very major extent by the adoption of clamping means of the type disclosed in the Elvin E. Baker U.S. Pat. No. 2,668,538, dated Feb. 9,1954.

SUMMARY OF THE INVENTION In accordance with the present invention, the type of clamping means disclosed in said Baker patent is still further improved by utilizing a somewhat different principle of operation. While in the Baker patent relatively sharp teeth are utilized to effect secure clamping, though they are so arranged that despite their sharpness they are prevented from penetrating or cutting the clamped tissues, the present invention makes possible secure clamping without the presentation to the tissues of sharp edges and thereby prevents even accidental damage to delicate tissues. Despite the existence of rounded edges, effective clamping is secured by utilization of the fact that the body tissues in general have elastic properties by virtue of which they resist deformation, particularly in.the sense of resisting compression such as would be required to cause a tissue to pass from an enlarged region in which it was expanded into a more restricted region which would require its compression. The clamping means in accordance with the present invention provides, in effect, pockets which permit a tissue to expand, in association with restricted regions so that movement from the former into the latter would require substantial distortion by compression or other deformation of the tissue. In the case of tubular vessels, the compression action is further resisted by entrapment of liquid which would have to be extruded through clamped portions of a vessel to permit slipping movement. The characteristics giving rise to the effectiveness of the invention will become clearer from the following description.

BRIEF DESCRIPTION OF THE DRAWING DESCRIPTION OF THE PREFERRED EMBODIMENT Clamps provided in accordance with the present invention may be of any conventional construction aside from the formation of the clamping surfaces of the jaws. FIGS. 1 and 2 show, for example, forceps comprising the members 2 and 4 which are hinged at 6 and provided with finger-receiving rings I2 and a latching arrangement indicated at I4 comprising interengaging toothed projections. The jaws 8 and IO'may have conventional shapes aside from the.clamping surface structure III and it will be understood that the invention is quite generally applicable to a great variety of forceps and other clamps having straight or curved jaws of various dimensions depending upon the particular uses for which they are intended. The handles or other manipulating means may be of various types including springs, wedges, cam devices, screws or the like for the purpose of closing or adjusting the jaws.

The jaws may be wholly or only partially serrated in accordance with the invention and the general nature of the serrations provided in carrying out the invention will be made clear from FIGS. 3 and 4 which show a preferred arrangement of the serrations for an aortic clamp.

The construction of the jaws may be made clear by describing the operations involved in the formation of their clamping surfaces. Referring first to the jaw 8, and assuming that milling is used in its formation, though it may be otherwise formed, as by casting, it comprises lateral surfaces 16 running lengthwise of the jaws and presenting, as illustrated in FIG. 4, rounded downwardly facing surfaces which have a clamping function. Simultaneously there may be milled a longitudinally extending groove 18, the milling also forming as a continuation of the surfaces 16 the longitudinal surfaces indicated at 20, while in the formation of the groove 18 side surfaces for the groove are provided at 22. The further result of the milling is to provide rounded longitudinally extending ribs as indicated at 24. As will be noted from FIG. 4, the surfaces 22 are concave as viewed in this transverse section and as will appear form outer walls of pockets. The surfaces 20 also have at the roots of the downwardly extending ridges concave portions which also tend toform pockets.

Passing next to the aspects of the lower jaw 10 formed also by milling, this has upwardly convex longitudinal lands 26 while milled inwardly of-the lands are grooves 28 having concave walls 30, the grooves conjointly forming a ridge 32 the flanks of which are concave as indicated at 34.

All of the foregoing structural aspects extend longitudinal, and when the jaws are in completely closed position, with the lands l6 and 26 in contact, there will be longitudinally extending pockets as indicated at 36 which have enlarged transverse dimensions as compared with the dimensions of the passages between the ribs and the roots of the rib-receiving grooves. Other pockets of similar dimensions but enlarged with respect to adjacent passages, as viewed in the transverse section, are provided at the regions of the surfaces 30.

So far described have been only the longitudinally extending aspects of the jaw structures. Following the formation of these, as by milling, transverse cuts are made by milling or ii]- ing to produce teeth 38 in the ridges of the upper jaw and teeth 40 in the ridge of the lower jaw as will be seen most readily in FIG. 3, these teeth respectively having between them the hollow transverse grooves 42 and 44. The teeth are desirably rounded at their tips. In effect, there are then ridges of rounded teeth which appear rounded in both longitudinal and transverse sections. The matter of rounding of the teeth is mentioned particularly since even though they are rounded effective gripping is secured as will appear more fully later; but even if they are not rounded, the construction is such that cutting or penetration of the tissues is avoided by reason of the reception of the teeth in the grooves with clearances insured by the fact that closing movement is always limited at least by the longitudinally extending lands I6 and 26. Rounding is not essential, but it may be provided in those instances in which damage to very delicate tissues is to be minimized.

While not essential, it is usually desirable to have the teeth staggered in their longitudinal array as indicated in FIG. 3, though this is by no means essential, since, as will be evident from FIGS. 4 and 5, even during operation they are not inany effective shearing action with respect to each other. The staggering of the teeth does produce a more tortuous condition of the tissues enhancing the gripping action.

The production of effective. gripping action will be best made clear from consideration of FIG. 5 in which the jaws of FIG. 4 are illustrated as clamping a vessel T which may be assumed to contain a liquid such as blood. The vessel l is tightly clamped as illustrated at T, by the rounded lands l6 and 26 at both sides of the jaws. It will be evident that this action by closing off the vessel at two regions will trap in the intermediate region a quantity of the liquid. As the jaws are moved to this clamping condition, it would be noted that at the lower edge of the downwardly extending ribs, having the teeth 38, there will be some enlargement of the vessel at T but most significantly there will be enlarged portions of the vessel at T in the pockets 36 previously described which retain their pocket form though now somewhat different in shape than as they appear in FIG. 4 wherein the jaws are shown fully closed. There is also some enlargement at T What is illustrated in FIG. 5 is somewhat diagrammatic in that it is quite difficult to show the distortions which are produced, and desirably, by the fact that the longitudinally extended ribs are provided with teeth. FIG. 5, therefore, is to be visualized as involving some bulging of the clamped vessel forwardly and rearwardly of the rounded tips of the teeth.

What is significant is that it will be evident that even though the surfaces engaging the vessel T are rounded, a slipping movement of the clamping surfaces with respect to the vessel will be inhibited by the fact that in order for this to occur it would be necessary that substantial changes in volume and transverse dimensions of the vessel T would have to occur, and these changes are resisted by the elasticity of the walls of the vessel and by the necessity for compressing portions of the vessel with translation of the contained liquid. The operation is somewhat analogous with that which would be required to pull rubber tubing through an orifice substantially less in area than the overall cross section of the tubing. It should be noted that the resistance to this type of movement is not dependent on the existence of sharp edges or sharp points; by virtue of this damage to the tissues may be avoided.

While reference in FIG. 5 has been specifically made to a vessel which may contain a liquid, it will be clear that the matter of compression and necessary restriction for movement would apply to hold all types of body tissues which have the properties of being compressed or distorted with elasticity which will resist these deformations.

While the construction has been described as involving two ridges on one jaw and a single ridge on the other, with corresponding receiving grooves, more ridges and grooves cooperating in the same fashion may be provided to secure more extended clamping.

We claim:

1. Surgical clamping means comprising a pair of jaws mounted for movements toward and from each other, each of said jaws comprising at least one longitudinal rib having a row of teeth and at least one longitudinal groove located to receive the teeth of the rib of the opposite jaw, the teeth of the ribs on the respective jaws being laterally disposed relatively to each other, the ribs on the respective jaws having longitudinally extending flanks which are closely adjacent to each other when the jaws are in clamping relationship, and which are shaped to provide a longitudinally extending tissue-receiving pocket having, in transverse cross section an enlarged central portion and reduced end portions.

2. A clamp according to claim 1 in which each of said flanks is concave 3. A clamp according to claim I in which the teeth are rounded.

4. A clamp according to claim 1 in which the jaws are provided with engageable surfaces to prevent engagement of the ribs with each other when the jaws are closed.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2618268 *Jan 25, 1950Nov 18, 1952English Eagerton ESurgical forceps or clamp
US2668538 *Jan 30, 1952Feb 9, 1954George P Pilling & Son CompanySurgical clamping means
US2796065 *May 12, 1955Jun 18, 1957Kapp Karl ASurgical clamping means
US3326216 *Mar 30, 1964Jun 20, 1967Peter B SamuelsHemostatic clip constructions
US3515139 *Aug 29, 1966Jun 2, 1970Codman & ShurtleffAtraumatic clamp
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3705586 *Mar 4, 1971Dec 12, 1972Sarracino John BUmbilical cord clamp
US3926195 *Apr 23, 1973Dec 16, 1975Bleier WaldemarClip, clamping jaw and assembly for the interruption of the urogenital system
US3996937 *Feb 3, 1975Dec 14, 1976Williams Robert WClamp for anatomical tubes
US4194274 *Apr 6, 1978Mar 25, 1980John Thomas Batts, Inc.Garment grip construction for hangers
US4693246 *Apr 5, 1985Sep 15, 1987Mentor D & O, Inc.Suture tying forceps
US4693251 *Dec 3, 1985Sep 15, 1987Aesculap-Werke AgClip for the occlusion of an oviduct or vas deferens
US4976721 *Dec 14, 1988Dec 11, 1990The Research Foundation Of State University Of New YorkSurgical clamping device
US5011491 *Feb 16, 1990Apr 30, 1991Boenko Sergei KSurgical forceps
US5394885 *Jan 5, 1994Mar 7, 1995Symbiosis CorporationEndoscopic biopsy forceps jaws and instrument incorporating same
US5553624 *Sep 22, 1994Sep 10, 1996Symbiosis CorporationEndoscopic biopsy forceps jaws and instruments incorporating same
US5613499 *Sep 22, 1994Mar 25, 1997Symbiosis CorporationEndoscopic biopsy forceps jaws and instruments incorporating same
US5643316 *Apr 19, 1995Jul 1, 1997The Trustees Of The University Of PennsylvaniaMethod of thoracoscopic surgery using hinged tissue grasping forceps
US5951587 *Oct 9, 1997Sep 14, 1999Ethicon-Endo-Surgery, Inc.Needle holder with suture filament grasping abilities
US6607227 *Jun 28, 2000Aug 19, 2003Siemens Automotive CorporationSawtooth terminal blade gripper and method of gripping
US7322623Aug 15, 2003Jan 29, 2008Morton Gregory RSawtooth terminal blade gripper and method of gripping
US7762960May 13, 2005Jul 27, 2010Boston Scientific Scimed, Inc.Biopsy forceps assemblies
US8317726Jun 15, 2010Nov 27, 2012Boston Scientific Scimed, Inc.Biopsy forceps assemblies
US8409229Mar 22, 2010Apr 2, 2013Cardiomedical GmbhSurgical instrument
US8672859Oct 23, 2012Mar 18, 2014Boston Scientific Scimed, Inc.Biopsy forceps assemblies
US20110224701 *Mar 10, 2011Sep 15, 2011Pavel MennSurgical Clips For Laparoscopic Procedures
DE2521487A1 *May 14, 1975Nov 27, 1975Pilling CoChirurgisches instrument mit kastengelenk und verfahren zu dessen herstellung
DE3013836A1 *Apr 10, 1980Oct 15, 1981Zeppelin Dieter VonHysterektomie-klemme
WO1995018567A1 *Jan 4, 1995Jul 13, 1995Jose L FranceseEndoscopic biopsy forceps jaws
Classifications
U.S. Classification606/207, 24/518, 24/521
International ClassificationA61B17/28
Cooperative ClassificationA61B17/282
European ClassificationA61B17/28D4
Legal Events
DateCodeEventDescription
Feb 13, 1989ASAssignment
Owner name: MERIDIAN BANK (FORMERLY AMERICAN BANK AND TRUST C
Free format text: SECURITY INTEREST;ASSIGNOR:PILLING CO.;REEL/FRAME:005020/0396
Effective date: 19881223
Feb 13, 1989AS06Security interest
Owner name: MERIDIAN BANK (FORMERLY AMERICAN BANK AND TRUST CO
Owner name: PILLING CO.
Effective date: 19881223
Jul 25, 1988AS99Other assignments
Free format text: MERIDIAN BANK (FORMELY AMERICAN BANK AND TRUST CO. OF PA."), GREAT VALLEY CORPO * PILLING CO. : 19880505 OTHER CASES: NONE; AMENDING SECURITY AGREEMENT (SEE RECORD FOR DETAIL).
Jul 25, 1988ASAssignment
Owner name: MERIDIAN BANK (FORMELY AMERICAN BANK AND TRUST CO
Free format text: AMENDING SECURITY AGREEMENT;ASSIGNOR:PILLING CO.;REEL/FRAME:004918/0139
Effective date: 19880505
Feb 27, 1987ASAssignment
Owner name: MERIDIAN BANK, GREAT VALLEY CORPORATE CENTER, 55 V
Free format text: SECURITY INTEREST;ASSIGNOR:PILLING CO., A PA. CORP.;REEL/FRAME:004679/0907
Effective date: 19860710
Feb 27, 1987AS06Security interest
Owner name: MERIDIAN BANK, GREAT VALLEY CORPORATE CENTER, 55 V
Owner name: PILLING CO., A PA. CORP.
Effective date: 19860710
Jan 3, 1985AS06Security interest
Owner name: AMERICAN BANK AND TRUST CO. OF PA., A PA BANKING C
Owner name: PILLING CO.
Effective date: 19841231
Jan 3, 1985ASAssignment
Owner name: AMERICAN BANK AND TRUST CO. OF PA., A PA BANKING C
Free format text: SECURITY INTEREST;ASSIGNOR:PILLING CO.;REEL/FRAME:004348/0525
Effective date: 19841231