US3858293A - Assembly device - Google Patents

Assembly device Download PDF

Info

Publication number
US3858293A
US3858293A US392004A US39200473A US3858293A US 3858293 A US3858293 A US 3858293A US 392004 A US392004 A US 392004A US 39200473 A US39200473 A US 39200473A US 3858293 A US3858293 A US 3858293A
Authority
US
United States
Prior art keywords
housing
clips
guideway
stack
applicator
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.)
Expired - Lifetime
Application number
US392004A
Other languages
English (en)
Inventor
David Frederick Weston
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.)
Mediplast AB
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Application granted granted Critical
Publication of US3858293A publication Critical patent/US3858293A/en
Assigned to MEDIPLAST AB, A CORP. OF SWEDEN reassignment MEDIPLAST AB, A CORP. OF SWEDEN ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: IMPERIAL CHEMICAL INDUSTRIES LIMITED
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/0682—Surgical staplers, e.g. containing multiple staples or clamps for applying U-shaped staples or clamps, e.g. without a forming anvil
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53796—Puller or pusher means, contained force multiplying operator
    • Y10T29/53896—Puller or pusher means, contained force multiplying operator having lever operator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53961—Means to assemble or disassemble with work-holder for assembly
    • Y10T29/5397—Means to assemble or disassemble with work-holder for assembly and assembling press [e.g., truss assembling means, etc.]

Definitions

  • An assembly device for assembling the components of a wound clip applicator consisting of a housing with a closed base and upper, open end into which has to be loaded a spring and a stack of clips, and forceps arms for locking the clips in place, e.g., as in US. Pat. No. 3,775,826.
  • the device consists of a support for the housing, a guideway for receiving the components to be loaded, and a plunger which can travel along the guideway and press the components into the housing. Manual or automatic operation is envisaged.
  • This invention relates to an assembly device, and in particular it relates to a device for assembling the components of a wound clip applicator of the type described in German Offenlegungsschrift 2,245,405.
  • a wound clip applicator for use in surgical practice consists essentially of a rectangular magazine provided with forceps arms located at the sides of the magazine which may be squeezed together to bend a clip into the desired position across a wound.
  • a supply of clips is kept in the magazine and the clips are released singly from the open end of the magazine into the jaws of the forceps arms.
  • the magazine or housing for the clips and the forceps arms and jaws constitute an integral structure in a single piece of thermoplastic material, and in order to prepare such an applicator for use, biassing means for urging the clips towards the open end of the housing, usually in the form of a helical spring and a spring seat, together with a stack of clips must be inserted into the housing and then retained there by looking the forceps arms.
  • This operation can, of course be performed manually, but when so performed, it is slow and requires considerable dexterity.
  • the present invention provides and an assembly device which enables the wound clip applicator as described to be assembled without requiring manual dexterity.
  • sembly' device for assembling the components of a wound clip applicator of the type consisting of a housing for clips and forceps arms provided with locking.
  • means for retaining the clips in the housin-g,the housing being closed at its base and requiring to be loaded through its upper, open end with biassing means and a stack of clips comprising a support for receiving the housing of the applicator, a guideway located for directing the biassing means and the stack of clips, when placed therein, towards the open end of the housing under gravity, and a plunger adapted to be moved along the guideway for pressing the stack of clips and biassing means into the housing and retaining them there while the forceps arms are locked.
  • the support and guideway are arranged on an inclined plane and the plunger is in the form of a plate which is adapted to slide along the guideway under the action of a lever mounted on a rotatable shaft and actuated manually by a handle located at one side of the guideway.
  • Wound clips are often supplied as a stack retained on a wire loop, and as a further refinement, the plunger may be provided with a hook so that after the biassing means and clips have been locked in the housing, return of the plunger causes the hook to engage the wire loop and withdraw it from the clips.
  • FIG. I is a plan view of the assembly device with an applicator case shown in phantom outline
  • FIG. ll is a vertical section along the line A--A of FIG. I.
  • the assembly device of the-invention as illustrated comprises a support for the housing of an applicator in the form of a base plate 1 held at an angle of 30-45 to the horizontal by a frame 2 and provided with a leaf an asspring 3 at the lower end of the base plate 1 and located at to the base plate 1.
  • the upper surface ofthe base plate 1 is provided at its upper end with a semi-circular shaped raised portion 4, and the dimensions of this raised portion 4 and the support as a whole are such as to just accommodate and hold the housing 5 of a clip applicator (shown in phantom outline) between the leaf spring 3 and the raised portion 4.
  • the frame 2 also supports a metal guideway inclined at the same angle to the horizontal as the base plate 1 and located so that its lower end is in line with the mouth of an applicator, when present.
  • the guideway consistsof two U-shaped channels 6 arranged with the open parts facing each other and spaced apart by a distance slightly less than the width ofthe mouth of the applicator housing to be accommodated on the base plate 1.
  • the lower edges of each channel 6 are provided with extensions 7 which are directed towards the centre of the guideway, but do not meet and extend lengthwise only along approximately two-thirds of the channels 6 from their lower ends.
  • the gap 8 between the extensions 7 is small enough to retain a helical spring which is to be inserted into the applicator housing.
  • a cover 9 which is conveniently hinged to fit over the external surfaces, of the channels 6.
  • This cover 9 can be provided with a ridge 21 and slots 10 to accommodate and align a spring seat which is to be inserted into the applicator housing.
  • a plunger Arranged to slide between thechannels 6 and along the guideway formed by the channels 6 and their extensions 7 and cover 9 is a plunger in the form of'a plate ll'extending between the channels 6 and bearing.
  • a flat spring 12 provided with a downward facing hook l3 directed along the guideway.
  • the plate I1 is also provided with a slot l4 through which projects a lever 15 itself secured to a rotatable shaft 16 located below the plane of the guideway.
  • the shaft is provided with an actuating handle 17 and is preferably also provided with a re turn spring (not shown) to bias the lever 15 into the vertical position.
  • the extent of angular movement of the lever 15 is limited by a stop 19 extending between the sides of the frame 2' and adjustable in a pair of slots 20 located vertically below the cover 9.
  • biassing means in the form of a helical spring and a spring seat, and a stack of clips into the housing of a clip applicator through its upper open end
  • the assembly device is set with the actuating handle 17 vertical and consequently the plunger in the form of plate 11 together with its spring 12 at the upper end of the guideway.
  • the clip applicator is placed on the base plate 1 so that the housing 5 is secured between the leaf spring 3 and the semi-circular raised portion 4.
  • the helical spring is placed in the guideway on the extension 7, above and along the gap 8, when it slides down into the housing 5.
  • the spring seat is similarly placed in the guideway, and advantage may be taken of the ridge 21 and slots 10 to assist in aligning the seat across the guideway. The seat then slides down the guideway to rest on the upper end of the helical spring; at this stage, above the housing 5.
  • a stack of wound clips together with its retaining rack is then placed on the extension 7 and allowed to slide down the guideway and substantially below the cover 9.
  • the handle 17 is then pulled downwards to rotate the shaft 16 anticlockwise (FIG. ll) and via the lever 15 cause the plunger to move along the guideway until the hook 13 on spring 12 rides over the retaining rack and the plate 11 makes firm contact with the rack. Further rotation of the handle 17 and shaft 16 causes the plate 11 to press the stack of clips, spring seat and helical spring into the housing in which they are secured by locking the forceps arms 18 across the upper clip.
  • the movement of the plunger in the guideway is restricted by the stop 19, and after locking of the forceps arms, the handle 17 is allowed to return to the vertical position on its return spring.
  • the hook 13 engages the rack holding the stack of clips and withdraws it from the clips and the housing.
  • the rack has been withdrawn beyond the extensions 7 it falls from the hook l3 through the interior of the frame 2 and through an aperture in the base to a suitable receptacle.
  • the assembled clip applicator is then removed from the base plate 1 by pressure on the leaf spring 3, and the whole operation repeated.
  • the embodiment illustrated can readily be adapted for automatic operation by arranging for the components, i.e., housing, spring, spring seat and rack of clips, to be fed automatically on to the assembly tool and for the action of the plunger to push the loaded applicator through a constriction to lock the forceps arms. Discharge of the assembled applicator and return of the plunger can then be arranged to release a further supply of components to repeat the cycle.
  • the components i.e., housing, spring, spring seat and rack of clips
  • An assembly device for assembling the components of a wound clip applicator of the type consisting of a housing for clips and forceps arms provided with locking means for retaining the clips in the housing, the said housing being closed at its base and requiring to be loaded through its upper open end with biassing means and a stack of clips, comprising,
  • a plunger slidable along said guideway for pressing a stack of clips and biassing means into said housing and retaining them in said housing while the forceps arms of said applicator are locked.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
US392004A 1972-10-26 1973-08-27 Assembly device Expired - Lifetime US3858293A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4946372A GB1395740A (en) 1972-10-26 1972-10-26 Assembly device for a wound clip applicator

Publications (1)

Publication Number Publication Date
US3858293A true US3858293A (en) 1975-01-07

Family

ID=10452427

Family Applications (1)

Application Number Title Priority Date Filing Date
US392004A Expired - Lifetime US3858293A (en) 1972-10-26 1973-08-27 Assembly device

Country Status (6)

Country Link
US (1) US3858293A (enEXAMPLES)
JP (1) JPS4976373A (enEXAMPLES)
AU (1) AU474019B2 (enEXAMPLES)
DE (1) DE2353799A1 (enEXAMPLES)
GB (1) GB1395740A (enEXAMPLES)
SE (1) SE389602B (enEXAMPLES)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4515354A (en) * 1982-09-13 1985-05-07 At&T Technologies, Inc. Fixture for assembling pins into a shuttle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4892759B2 (ja) * 2005-12-06 2012-03-07 株式会社東京洗染機械製作所 脱水機用の溝付受板

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775825A (en) * 1971-08-24 1973-12-04 Levaux R Clip applicator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775825A (en) * 1971-08-24 1973-12-04 Levaux R Clip applicator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4515354A (en) * 1982-09-13 1985-05-07 At&T Technologies, Inc. Fixture for assembling pins into a shuttle

Also Published As

Publication number Publication date
AU6110673A (en) 1975-04-10
SE389602B (sv) 1976-11-15
DE2353799A1 (de) 1974-05-09
AU474019B2 (en) 1976-07-08
JPS4976373A (enEXAMPLES) 1974-07-23
GB1395740A (en) 1975-05-29

Similar Documents

Publication Publication Date Title
US2156743A (en) Paper clip applying tool
US3783540A (en) Viewing apparatus
US3013654A (en) Clothes line pins
US3858293A (en) Assembly device
ES306903A1 (es) Un dispositivo para la colocacion manual de broches de presion.
US4132897A (en) Film-cassette holder for an x-ray apparatus
US3460173A (en) Binding machine
US2233958A (en) Combination stapling machine and tacker
US2612932A (en) Sleeve compressing tool
US3707867A (en) Cartridge-type crimping tool
US3844016A (en) Slider holder for slide fasteners
US2642111A (en) Razor blade backing machine
US1722771A (en) Pencil holder for sharpeners
US2862319A (en) Convertible slide viewer and projector
US2990750A (en) Apparatus for projecting individual slides in projectors with a multiple slide magazine
US2720650A (en) Laundry tag stapling machine
US2740374A (en) Applicator device for applying liquid coating to photographic prints
US3308699A (en) Shearing and extractor device
GB1031816A (en) Slide holder for use in optical projection
USRE18793E (en) Signments
US3776392A (en) Apparatus for opening tobacco curing sticks
CN222098251U (zh) 一种卡盘组件及电子烟托盘
US1296749A (en) Tag-affixing machine.
US3712351A (en) Pencil sharpener
US2620249A (en) Filing case and sequential extractor means for photo slides, cards, and the like

Legal Events

Date Code Title Description
AS Assignment

Owner name: MEDIPLAST AB, RASUNDAVAGEN 60, 5-17152, SOLNA, SWE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:IMPERIAL CHEMICAL INDUSTRIES LIMITED;REEL/FRAME:003882/0693

Effective date: 19810316

Owner name: MEDIPLAST AB, A CORP. OF SWEDEN, SWEDEN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:IMPERIAL CHEMICAL INDUSTRIES LIMITED;REEL/FRAME:003882/0693

Effective date: 19810316