US20050145510A1 - Surgical instrument with snag free box hinge - Google Patents

Surgical instrument with snag free box hinge Download PDF

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Publication number
US20050145510A1
US20050145510A1 US11/066,636 US6663605A US2005145510A1 US 20050145510 A1 US20050145510 A1 US 20050145510A1 US 6663605 A US6663605 A US 6663605A US 2005145510 A1 US2005145510 A1 US 2005145510A1
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US
United States
Prior art keywords
portion
box hinge
handle
elongated member
surgical instrument
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US11/066,636
Inventor
Donald Propp
Gary Gillis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tri-State Hospital Supply Corp
Original Assignee
Propp Donald J.
Gillis Gary A.
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
Family has litigation
Priority to US36761002P priority Critical
Priority to US10/284,519 priority patent/US7351248B2/en
Application filed by Propp Donald J., Gillis Gary A. filed Critical Propp Donald J.
Priority to US11/066,636 priority patent/US20050145510A1/en
Publication of US20050145510A1 publication Critical patent/US20050145510A1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=28044689&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20050145510(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Assigned to CENTURION MEDICAL PRODUCTS CORPORATION reassignment CENTURION MEDICAL PRODUCTS CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: TRI-STATE HOSPITAL SUPPLY CORPORATION
Assigned to CENTURION MEDICAL PRODUCTS CORPORATION reassignment CENTURION MEDICAL PRODUCTS CORPORATION CORRECTIVE ASSIGNMENT TO CORRECT THE CITY NAME PREVIOUSLY RECORDED ON REEL 023044 FRAME 0611. ASSIGNOR (S) HEREBY CONFIRMS THE CITY NAME IS WILLIAMSTON. Assignors: CENTURION MEDICAL PRODUCTS CORPORATION
Application status is Abandoned legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28Surgical forceps
    • A61B17/2812Surgical forceps with a single pivotal connection
    • A61B17/2816Pivots
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/04Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
    • A61B17/06Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
    • A61B17/062Needle manipulators

Abstract

A surgical instrument includes a pair of elongated members joined together by a box hinge. The box hinge is formed of a slot in the first member having substantially flat, generally parallel sides and a hinge portion in the second member. The hinge portion of the second member conforms to the generally flat surfaces of the slot and is generally the same width as that of the second member on either side of the box hinge. The width of the first elongated member is larger than the width of the second elongated member at either end of the box hinge portion. The transitional slope of the side surfaces of the second elongated member is nearly flat between the box hinge portion, the handle end portion, and the working tip portion. The unique construction of the box hinge creates a snag-free surface that allows for the use of the instrument for tasks such as suturing without the suturing thread snagging on the instrument.

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • This application is a divisional of U.S. patent application Ser. No. 10/284,519, filed Oct. 30, 2002, which claims the benefit of U.S. Provisional Application No. 60/367,610, filed Mar. 25, 2002.
  • TECHNICAL FIELD
  • This invention relates to medical and surgical instruments and more particularly to surgical instruments such as needle holders, forceps, hemostats, clamps, and occluders which incorporate a precision box hinge.
  • BACKGROUND OF THE INVENTION
  • Medical and surgical instruments such as needle holders, needle drivers, forceps and occluders that incorporate a box hinge between handle ends and working tip ends are well known. Referring to FIGS. 1 through 3, these instruments include a pair of members joined together by a box hinge. Forming the box hinge one of the members includes a slot having flat, parallel sides and the other member includes a portion machined to conform with the flat, parallel sides of the slot. The machined portion extends through the slot in an assembled instrument. A hinge pin extends through the parallel sides of the slot and through the machined portion of the other member disposed in the slot. It is known that suture thread does snag at or on edges E1 around the machined portion of the one member and around or under machined edges E2 machined around the slot. In an attempt to reduce snags some manufacturers bevel the machined edges, or attempt to provide very expensive and precise matched grinding of the handles at either end of the box hinge where the machined portion first interfaces with the slot.
  • Even with the beveled edges a suture may snag above and below the pivot point of the hinge as a surgeon is tying a knot in the suture, or when a prior art instrument goes into and out of an array of temporarily placed suture threads placed in, or around, a large wound or opening in tissues; in which one or more layers is held open by multiple instruments and suture threads. Such snagging can occur when preparatory knot loops, or partial turns, are moving either up, or down, the instrument body, and at locations both above, and below, the box hinge. Snagging potential increases directly with smaller suture thread and with larger suture needles (more open jaws and mismatch at the prime snag areas). Likewise, the matched grinding has the disadvantage of being costly typically still snagging when suture thread is of very fine diameter, and still leads to snagging due to mismatch of the interface as the working tip ends are opened slightly to hold the suture needle or other objects.
  • SUMMARY OF THE INVENTION
  • The present invention provides a box hinge for a medical or surgical instrument that completely eliminates any possibility of snagging a suture on edges of the instrument around the box hinge.
  • Accordingly, interacting surfaces of a snag-free medical or surgical instrument box hinge includes edges having a smooth cooperative transition so that relative movement between the instrument box hinge and a suture is uninterrupted as there are no snag points along edges of the box hinge for the suture to get caught in or on during working movement.
  • More specifically, a surgical instrument in accordance with the invention includes a pair of elongated members joined together by a box hinge. The box hinge is formed by a slot in the first member having substantially flat, generally parallel sides and, instead of a machined portion, as in the known art, a hinge portion of generally continuous cross-section in the second member. The hinge portion of the second member conforms and cooperates with the substantially flat surfaces of the slot. The hinge portion of the second member may be generally the same width as that of the second member on either side of the box hinge, thereby eliminating points where a suture can snag above and below the box hinge. In other words, the hinge portion of the second member preferably has a generally continuous cross sectional shape being generally that of portions of the second member on either end of the hinge portion.
  • In an embodiment of the invention the instrument includes two elongated members, each of which comprises a box hinge portion, a handle end portion and a working tip portion. The length of the handle end portion is generally longer than the length of the working tip portion. The handle end portion comprises a circular finger handle and a locking mechanism that holds the box hinge in a closed position. The working tip portion may have working surfaces that include a plurality of ridges, or various other kinds of grasping structure, shapes, and designs. The box hinge comprises a slot in the box hinge portion of the first elongated member and the box hinge portion of the second elongated member received in the slot. The box hinge portion of the second elongated member conforms to the generally flat surfaces of the slot. The width of the first elongated member is larger than the width of the second elongated member at either end of the box hinge portion. In this embodiment, the outside overall width of the first elongated member including the slot may also be slightly wider relative to conventional instruments. The slope of the side surfaces of the second elongated member is nearly flat, although there may be some tapering of the member between the box hinge portion and the handle end portion on one end of the box hinge and the box hinge portion and the working tip portion on the other end of the box hinge.
  • Alternatively, the hinge portion may be formed by machining the hinge portion without any step between handle end or tip end and box hinge portion to provide no snag inducing surfaces for a suture to catch on.
  • External edges of the first elongated member that includes the slot may be tapered or curved toward ends above and below the pivot point so as not to create any snag points.
  • A health care professional can use medical or surgical instruments that incorporate a snag-free box hinge through methods that do not have to compensate for snagging sutures.
  • These and other features and advantages of the invention will be more fully understood from the following detailed description of the invention taken together with the accompanying drawings.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • In the drawings:
  • FIG. 1 is a perspective view of a prior art surgical instrument including a box hinge comprised of two hinged members, one having a slot with parallel sides and the other having a stepped down portion machined to fit within the parallel sides in a closed suture needle holding position, illustrating a suture being snagged on edges of the stepped down portion and other edges;
  • FIG. 2 is a perspective view of the prior art surgical instrument of FIG. 1 showing the edges in the member where snagging occurs;
  • FIG. 3 is an end view of the prior art surgical instrument of FIG. 2 wherein the working tip portions are open and spaced and illustrating steps in the hinged members around the box hinge portion;
  • FIG. 4 is a perspective view of a surgical instrument including a snag free box hinge in accordance with the invention in an operative position mounting a suturing needle illustrating a surgeon's knot and an absence of edges on which the suture could snag;
  • FIG. 5 is a perspective view of the surgical instrument of FIG. 4 illustrating a box hinge including two members, one having a slot with parallel sides and the other having a smooth, step-free portion;
  • FIG. 6 is a plan view of the surgical instrument of FIG. 4 in the open position;
  • FIG. 7 is a side view of the surgical instrument of FIG. 4 in the open position; and
  • FIG. 8 is an end view of the surgical instrument including a snag free box hinge of FIG. 6 wherein the working tip portions are open and spaced and illustrating the absence of any step in the hinged members around the box hinge portion.
  • DETAILED DESCRIPTION OF THE INVENTION
  • Referring now to FIGS. 4 through 8 of the drawings in detail, numeral 10 generally indicates a surgical instrument in accordance with a first embodiment of the present invention. As is more fully hereinafter described, the surgical instrument 10 provides for snag free movement of a suture along the box hinge portion of the surgical instrument.
  • As illustrated in FIGS. 4 through 8, a surgical instrument 10 includes a first elongated member 12 and a second elongated member 14. The first elongated member 12 includes a first box hinge portion 16, a handle end portion 18 and a working tip portion 20. The second elongated member 14 includes a second box hinge portion 22, a handle end portion 24 and a working tip portion 26. The second box hinge portion 22 has opposing side surfaces 30 that span the length of the second elongated member 14.
  • The first box hinge portion 16 includes a slot 28 that has generally flat parallel sides 32 for receiving the second box hinge portion 22 therein. The second box hinge portion 22 has a cross-section conforming to the generally flat parallel sides 32 of the slot 28. The second box hinge portion 22 illustrated is also generally the same width as the handle end portion 24 and the working tip portion 26 on either end 34, 36 of the box hinge portion 22 such that the slope of the side surfaces 30 of the second elongated member 14 from the handle end portion 24 through the second box hinge portion 22 to the working tip portion 26 is nearly flat. The result is that there are no steps on either end of the box hinge on which to snag a suture. This is in contrast to the machined portion of the prior art which results in steps E1 and E2. A hinge pin 38 extends through the parallel sides of the slot 28 and through the second box hinge portion 22 connecting the first elongated member 12 to the second elongated member 14.
  • Alternatively, the second box hinge portion 22 can be disposed between handle end 24 and working tip 26 portions that therein provide a long smooth oblique transition, thereby being generally nearly flat and extending outward and away from the box hinge portion toward the handle end portion on one end of the box hinge and the working tip portion on the other end of the box hinge.
  • The handle end portions 18, 24 include a circular handle 40, 42 and a cooperating locking mechanism 44, 46 disposed near the circular handles 40, 42 that are interconnectable to effectively lock the distal tip portions 20, 26 of the first and second elongated members 12, 14 in urged engagement. The inner working surfaces 48 of the working tip portions 20, 26 may include a plurality of ridges, or other grasping structures, 50 that enhance the grip of the working tips when the surgical instrument 10 is in the operative position, as seen in FIG. 4.
  • In FIG. 4, an advantage of the surgical instrument 10 is shown. The surgical instrument 10 is in the operative position clamping a surgical suturing needle between the working tip portions 20, 26. A suture 52 attached to a needle 54 engaged between the working tips 20, 26 does not snag on the members at the ends 34, 36 between the box hinge portions 16, 22 and the handle end portions 18, 24 or the working tip portions 20, 26 respectively when the suture is in contact with the surgical instrument 10, such as when a surgeon is tying a knot in the thread, or the instrument 10 is moving relative to and in contact with other suture threads disposed about an open wound.
  • The box hinge structure herein described can also be applied to numerous other types of non-needle holder surgical instruments, such as any manual surgical instrument, clamp type forceps, blood vessel clamps, and scissors that employ a box hinge. These instruments can be formed of stamped metal construction and can be readily disposable, or reusable, at manufacturer's and users option.
  • As an example of a suture needle holder application, a medical care provider uses the surgical instrument together with a suturing needle and suture thread to conduct suturing in a snag-free manner in accordance with the method in which a surgical instrument according to the invention is provided, a suture needle with suture thread is operatively mounted in the working tip portion of the instrument, and a wound or other opening in a patient is sutured in accordance with common medical practice.
  • Although the invention has been described by reference to a specific embodiment, it should be understood that numerous changes may be made within the spirit and scope of the inventive concepts described. Accordingly, it is intended that the invention not be limited to the described embodiment, but that it have the full scope defined by the language of the following claims.

Claims (12)

1. A surgical instrument comprising:
a first elongated member having a handle end portion, a working tip portion and a box hinge portion between said handle and tip end portions; and
a second elongated member having a handle end portion, a working tip portion and a box hinge portion between said handle and tip end portions;
said first box hinge portion being defined by a slot for receiving said second box hinge portion therein;
said second box hinge portion being generally continuous in width with at least one of said second handle end portion and said second working tip portion;
said second elongated member being pivotally connected to said first elongated member in said box hinge portion.
2. The surgical instrument of claim 1, wherein each of said handle end portions includes a circular handle and a locking mechanism interconnected at the far end of the handle end portion.
3. The surgical instrument of claim 1, wherein an inside surface of said working tip portions include a gripping structure.
4. The surgical instrument of claim 1, wherein the length of said handle end portions is generally longer than the length of said working tip portions.
5. A surgical instrument comprising:
a first elongated member having a handle end portion, a working tip portion and a box hinge portion between said handle and tip end portions; and
a second elongated member having a handle end portion, a working tip portion and a box hinge portion between said handle and tip end portions;
said first box hinge portion being defined by a slot for receiving said second box hinge portion therein;
said second elongated member being pivotally connected to said first elongated member in said box hinge portion;
wherein side surfaces of said second elongated member have a nearly flat transitional slope therebetween at least one of a pair of said second box hinge portion and said second handle end portion and a pair of said second box hinge portion and said second working tip portion.
6. The surgical instrument of claim 5, wherein each of said handle end portions includes a circular handle and a locking mechanism interconnected at the far end of the handle end portion.
7. The surgical instrument of claim 5, wherein an inside surface of said working tip portions include a gripping structure.
8. The surgical instrument of claim 5, wherein the length of said handle end portions is generally longer than the length of said working tip portions.
9. A surgical instrument comprising:
a first elongated member having a handle end portion, a working tip portion and a box hinge portion between said handle and tip end portions; and
a second elongated member having a handle end portion, a working tip portion and a box hinge portion between said handle and tip end portions;
said first box hinge portion being defined by a slot for receiving said second box hinge portion therein;
said second elongated member being pivotally connected to said first elongated member in said box hinge portion;
wherein said first elongated member is wider than said second elongated member about at least one end of the box hinge portion.
10. The surgical instrument of claim 9, wherein each of said handle end portions includes a circular handle and a locking mechanism interconnected at the far end of the handle end portion.
11. The surgical instrument of claim 9, wherein an inside surface of said working tip portions include a gripping structure.
12. The surgical instrument of claim 9, wherein the length of said handle end portions is generally longer than the length of said working tip portions.
US11/066,636 2002-03-25 2005-02-25 Surgical instrument with snag free box hinge Abandoned US20050145510A1 (en)

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Application Number Priority Date Filing Date Title
US36761002P true 2002-03-25 2002-03-25
US10/284,519 US7351248B2 (en) 2002-03-25 2002-10-30 Surgical instrument with snag free box hinge
US11/066,636 US20050145510A1 (en) 2002-03-25 2005-02-25 Surgical instrument with snag free box hinge

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US11/066,636 US20050145510A1 (en) 2002-03-25 2005-02-25 Surgical instrument with snag free box hinge

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US10/284,519 Division US7351248B2 (en) 2002-03-25 2002-10-30 Surgical instrument with snag free box hinge

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US10/284,519 Expired - Fee Related US7351248B2 (en) 2002-03-25 2002-10-30 Surgical instrument with snag free box hinge
US10/719,171 Expired - Fee Related US7494500B2 (en) 2002-03-25 2003-11-21 Surgical instrument with snag free box hinge
US11/066,636 Abandoned US20050145510A1 (en) 2002-03-25 2005-02-25 Surgical instrument with snag free box hinge

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US10/719,171 Expired - Fee Related US7494500B2 (en) 2002-03-25 2003-11-21 Surgical instrument with snag free box hinge

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AU (1) AU2003230666A1 (en)
DE (1) DE10392131T5 (en)
WO (1) WO2003082131A1 (en)

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US20060235278A1 (en) * 2005-04-01 2006-10-19 Winston Thomas R Apparatus and method for expanding a chest cavity
US20070112376A1 (en) * 2005-11-14 2007-05-17 Tri-State Hospital Supply Corporation Medical tubing clamping apparatus
US20070276431A1 (en) * 2006-05-26 2007-11-29 Swartz Jennifer T Surgical box hinge and method of making same
US20130081975A1 (en) * 2011-09-30 2013-04-04 Elizabeth Lincoln Gripping Utensil Kit
CN104116550A (en) * 2014-08-08 2014-10-29 江苏百易得医疗科技有限公司 McPherson bullet forceps
CN104127218A (en) * 2014-08-08 2014-11-05 江苏百易得医疗科技有限公司 Straight-head haemostatic forceps

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US7351248B2 (en) * 2002-03-25 2008-04-01 Tri-State Hospital Supply Corporation Surgical instrument with snag free box hinge
US10327792B2 (en) 2004-08-02 2019-06-25 Robert F. Biolchini, Jr. Ambidextrous locking clamp system
US7758609B1 (en) 2004-08-02 2010-07-20 Biolchini Jr Robert F Ambidextrous locking clamp
US8070771B1 (en) 2004-08-02 2011-12-06 Biolchini Jr Robert F Ambidextrous locking clamp system
US9427245B1 (en) 2004-08-02 2016-08-30 Robert F. Biolchini, Jr. Ambidextrous locking clamp system
US7824425B2 (en) * 2004-08-02 2010-11-02 Biolchini Jr Robert F Ambidextrous locking clamp system
US8152834B2 (en) * 2005-04-13 2012-04-10 Synthes Usa, Llc Forceps and system using same
DE102006024296A1 (en) * 2006-05-24 2007-11-29 Knipex-Werk C. Gustav Putsch Kg tongs
CN104116541A (en) * 2014-08-08 2014-10-29 江苏百易得医疗科技有限公司 Curved haemostatic forceps
CN104146745B (en) * 2014-09-02 2016-08-17 兰州大学第医院 A medical cardiac surgical scissors
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US20060235278A1 (en) * 2005-04-01 2006-10-19 Winston Thomas R Apparatus and method for expanding a chest cavity
US8496582B2 (en) * 2005-04-01 2013-07-30 Thomas R. Winston Apparatus and method for expanding a chest cavity
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CN104116550A (en) * 2014-08-08 2014-10-29 江苏百易得医疗科技有限公司 McPherson bullet forceps
CN104127218A (en) * 2014-08-08 2014-11-05 江苏百易得医疗科技有限公司 Straight-head haemostatic forceps

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US7494500B2 (en) 2009-02-24
US7351248B2 (en) 2008-04-01
US20040106947A1 (en) 2004-06-03
WO2003082131A1 (en) 2003-10-09
US20030181944A1 (en) 2003-09-25
AU2003230666A1 (en) 2003-10-13

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