WO2008075682A1 - Agrafeuse médicale - Google Patents

Agrafeuse médicale Download PDF

Info

Publication number
WO2008075682A1
WO2008075682A1 PCT/JP2007/074318 JP2007074318W WO2008075682A1 WO 2008075682 A1 WO2008075682 A1 WO 2008075682A1 JP 2007074318 W JP2007074318 W JP 2007074318W WO 2008075682 A1 WO2008075682 A1 WO 2008075682A1
Authority
WO
WIPO (PCT)
Prior art keywords
stapler
medical
operation lever
slider
locking
Prior art date
Application number
PCT/JP2007/074318
Other languages
English (en)
Japanese (ja)
Inventor
Yutaka Kato
Masao Saito
Original Assignee
Max Co., 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 Max Co., Ltd. filed Critical Max Co., Ltd.
Publication of WO2008075682A1 publication Critical patent/WO2008075682A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • 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

Definitions

  • the present invention relates to a medical stapler used for suturing a wound.
  • a medical stable is used in addition to a suture as means for suturing a wound in a surgical operation or the like.
  • the medical staple includes a crown portion and leg portions that curve downward from the bent portions on both sides thereof.
  • the medical stapler includes a stapler main body having a head portion loaded with a medical stable, and an operation lever rotatably provided on the stapler main body (see, for example, Japanese Patent No. 3054202).
  • the operating lever is urged in the opening direction to separate the slider body force. When stitching the wound, hold the operating lever firmly and rotate it in the closing direction.
  • the medical stable protrudes from the head and is inserted into the skin, and the legs are bent inward to bring the skin on both sides of the wound together and suture.
  • Medical staplers are basically used and discarded.
  • the medical stapler is disposed of after each surgical operation, regardless of how many medical stables remain inside after the suture operation.
  • the operation lever is biased in the opening direction. That is, the operation lever is in an open state with respect to the stapler main body and protrudes greatly from the stapler main body, so that it is bulky.
  • the cost of treating medical waste at risk of infection is More expensive than normal waste disposal. Therefore, reducing the volume of waste is a major challenge in saving hospital costs.
  • the medical stapler is supported so as to be rotatable with respect to the stapler main body from which the medical stable is driven, and close to the stapler main body.
  • the medical stable By rotating in the closing direction, the medical stable is driven out, and the operating lever biased in the opening direction away from the stapler body and the operating lever is rotated in the closing direction beyond the normal rotation amount necessary for suturing.
  • a lock mechanism that locks the operation lever with respect to the stapler body when the operation of the operation lever is rotated in the closing direction with respect to the normal rotation amount.
  • FIG. 1 is a partial cross-sectional view of a medical stapler according to an embodiment of the present invention.
  • FIG. 2 is an exploded perspective view of the medical stapler.
  • FIG. 3A is an explanatory view showing an operation mode of the medical stapler.
  • FIG. 3B is another explanatory view showing an operation mode of the medical stapler.
  • FIG. 4A is a plan view of the head portion and the base.
  • FIG. 4B is a side view of the head portion and the base.
  • FIG. 5 is a cross-sectional view showing an operation mode of an operation lever in a normal suturing operation.
  • FIG. 6 is a cross-sectional view taken along the line AA in FIG.
  • FIG. 7 is a cross-sectional view taken along the line BB in FIG.
  • the medical stapler includes a stapler body 1 and an operation lever 2 provided to be rotatable with respect to the stapler body 1.
  • the stapler body 1 and the operation lever 2 are each made of synthetic resin.
  • the stapler body 1 includes a head portion 3, a base portion 13 that extends in the front-rear direction below the head portion 3, and a housing 9 having a storage portion 8.
  • the operation lever 2 is rotated in the closing direction in which the operation lever 2 is housed in the housing portion 8, the medical stable protrudes from the head portion 3 in the stapler body 1 and is inserted into the skin.
  • Each leg of the medical stable should not be bent inward. The skin on both sides of the wound is brought together and sutured.
  • the longitudinal section of the housing 9 is substantially U-shaped.
  • the head portion 3 is provided on the inner side of the front portion of the housing 9.
  • the side surface of the head part 3 is formed in a trapezoidal shape.
  • a launching portion 4 for punching a medical stable is formed at the lower part of the front end of the head portion 3 (left side in the figure).
  • the stapler body 1 is loaded with several to several tens of medical staples.
  • the medical stable is supplied to the launching unit 4 in order from the first medical stable S1 by a feeding means (not shown).
  • a driver plate 5 is provided above the projecting portion 4 so as to be slidable in the vertical direction.
  • the driver plate 5 is always urged by a panel (not shown) so as to be in the upper position.
  • protrusions 6 are formed on both sides of the lower portion of the driver plate 5. That is, the lower end of the driver plate 5 is formed in an inverted U shape.
  • an anvil 7 is provided on the inner upper portion of the launch portion 4. The center of the leading staple S1 is placed on the anvil 7
  • the front part of the operation lever 2 (the part on the head part 3 side) is housed in the space inside the sleeve 9, that is, in the housing part 8.
  • the operating lever 2 is provided with a rotating shaft 10.
  • the operation lever 2 is attached to the stapler body 1 so as to be rotatable about the rotation shaft 10, so that the grip portion 11 opposite to the head portion 3 can be opened and closed.
  • the drip portion 11 is always urged in the opening direction away from the stapler body 1 by a panel (not shown), and protrudes from the storage portion 8.
  • the grip portion 11 is formed with a finger hook portion 12 on which four fingers from the index finger to the little finger can be put.
  • the medical stapler has a stubber mechanism that restricts the operation lever 2 from rotating in the closing direction than the amount of rotation required for normal stitching, and a rotation amount necessary for suturing by releasing the stubber mechanism. And a lock mechanism that locks the operation lever 2 to the stapler body 1 when it is rotated in the closing direction.
  • the base portion 13 below the head portion 3 is formed in a rectangular tube shape, and a part of the slider 14 is disposed therein.
  • the slider 14 can slide along the longitudinal direction of the head portion 3.
  • the slider 14 includes a guide portion 16, an engagement piece 17 projecting up and down from the base portion of the guide portion 16, an engagement portion 18 behind the engagement piece 17, and an engagement portion And 18 engaging jaws 19 projecting rearward from the upper part of the rear part 20.
  • the lower surface of the engaging jaw portion 19 is formed so as to be inclined rearward and downward.
  • the back surface portion 20 is formed so that the lower side is inclined slightly forward.
  • a coil spring 15 is disposed in the base portion 13. One end of the coil spring 15 is attached to the guide portion 16 of the slider 14.
  • Engagement holes 21 are formed above and below the rear portion of the base portion 13.
  • the engagement piece 17 of the slider 14 is engaged with the engagement hole 21, and the slider 14 is slidably attached within the range of the length of the engagement hole 21.
  • the slider 14 is always urged backward by the coil panel 15.
  • the base portion 13 is formed with locking pieces (locking receiving portions) 22 protruding rearward at positions on both sides of the slider 14.
  • a guide groove 23 is formed in the operation lever 2.
  • the guide groove 23 includes the engagement jaw portion 19 when the slider 14 is urged by the coil panel 15 and the engagement piece 17 is positioned at the rear edge portion of the engagement hole 21. Then, when the operation lever 2 rotates, the operation lever 2 is slidably guided with respect to the engaging jaw portion 19.
  • An engaging protrusion 25 (see FIG. 1) that can engage with the engaging jaw 19 of the slider 14 is formed at the lower end of the guide groove 23.
  • Locking portions 24 are formed on both sides of the guide groove 23 at positions corresponding to the locking pieces 22 arranged on both sides of the slider 14.
  • the upper surface of the locking portion 24 is inclined forward and downward.
  • the stocker mechanism includes an engaging jaw portion 19 formed on the slider 14 and an engaging protrusion 25 formed on the operation lever 2.
  • the lock mechanism includes a locking piece 22 formed on the base 13 and a locking portion 24 formed on the operation lever 2.
  • the locking portion 24 of the operating lever 2 elastically deforms the locking piece 22 of the base 13 and moves to the upper surface side of the locking piece 22. get over.
  • the medical stapler is discarded.
  • a finger is put on the back surface portion 20 of the slider 14 and the slider 14 is pushed forward against the urging force of the coil spring 15 to release the strobe mechanism.
  • the control lever 2 is grasped and rotated in the closing direction in which it is stored in the storage portion 8.
  • the engagement protrusion 25 of the operation lever 2 does not engage with the engagement jaw 19 of the slider 14, the operation lever 2 can be rotated in the closing direction rather than the rotation amount necessary for sewing.
  • the upper surface of the locking portion 24 of the operation lever 2 elastically deforms the locking piece 22 of the stapler body 1, and the locking portion 24 gets over the upper surface side of the locking piece 22. . Thereafter, even if the grip of the operation lever 2 is released, the locking portion 24 of the operation lever 2 is locked to the locking piece 22 of the stapler body 1. By such a locking mechanism, the operation lever 2 is locked at the locking position and cannot be rotated further downward.
  • the operation lever 2 is stored in the storage portion 8 of the stapler body 1.
  • the stapler body 1 and the operating lever 2 are kept close to each other. Therefore, the volume of the entire medical stapler is reduced. As a result, it is possible to reduce the bulk when the medical stapler is discarded, which can contribute to volume reduction of medical waste. In addition, since the medical stapler can be discarded without disassembling, there is no risk of contaminating the operating room.
  • the operation lever 2 is finally locked in a state of being rotated in a closing direction in which the stable S1 is bent. Therefore, the leading end portion of the leading staple S 1 remaining inside the head portion 3 is fixed in a state of being bent inward as shown in FIG. 3B. In other words, the needle tip of the stable S 1 does not protrude from the stapler body 1. Therefore, even if an external force is applied to the control lever 2 during the processing of the waste bag that is being disposed of by the medical stapler, the disposal operation that the Stable S 1 breaks through the waste bag and exposes it is safe. Can be done. Further, since the medical stapler can be discarded without disassembling while leaving the remaining stable, there is no possibility of contaminating the operating room. Therefore, sanitary disposal can be performed for all workers involved in the disposal of medical waste, including those who dispose of medical equipment, only by medical institutions.
  • the locking piece 22 formed on the base portion 13 of the stapler body 1 and the locking portion 24 formed on the operation lever 2 are locked to each other separately from the slider 14. To do. Therefore, even if the slider 14 is moved after the locking piece 22 and the locking portion 24 are locked, the operating lever 2 does not rotate in the opening direction. Hold it securely with force S.
  • the slider 14 and the locking piece 22 may be disposed on the operation lever 2 side, and the engagement protrusion 25 and the locking portion 24 may be disposed on the stapler body 1 side. Good.
  • the locking mechanism is not limited to the above-mentioned embodiment! /.
  • the lock mechanism may include a locking portion 24 formed on one of the slider 14 and the operation lever 2 and a locking receiving portion 22 formed on either of the other.
  • the lock mechanism latches and receives the latching portion 24.
  • the operation lever 2 may be locked so as not to rotate in the opening direction, and the slider 14 may be locked so as not to slide.

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)

Abstract

L'invention concerne une agrafeuse médicale ayant un corps d'agrafeuse à partir duquel une agrafe médicale est éjectée ; un levier de fonctionnement supporté de façon rotative par le corps d'agrafeuse, éjectant une agrafe lorsqu'il est amené à tourner dans une direction de fermeture dans laquelle le levier s'approche du corps d'agrafeuse, et sollicité dans une direction d'ouverture dans laquelle le levier est séparé du corps d'agrafeuse ; un mécanisme d'arrêt pour empêcher le levier de fonctionnement de tourner dans la direction de fermeture d'une quantité dépassant une quantité de rotation normale nécessaire pour une suture ; et un mécanisme de verrouillage pour verrouiller le levier de fonctionnement par rapport au corps d'agrafeuse lorsque le mécanisme d'arrêt est libéré pour amener le levier de fonctionnement à tourner dans la direction de fermeture d'une quantité dépassant la quantité de rotation normale.
PCT/JP2007/074318 2006-12-18 2007-12-18 Agrafeuse médicale WO2008075682A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-340592 2006-12-18
JP2006340592A JP4737065B2 (ja) 2006-12-18 2006-12-18 医療用ステープラ

Publications (1)

Publication Number Publication Date
WO2008075682A1 true WO2008075682A1 (fr) 2008-06-26

Family

ID=39536311

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/074318 WO2008075682A1 (fr) 2006-12-18 2007-12-18 Agrafeuse médicale

Country Status (3)

Country Link
JP (1) JP4737065B2 (fr)
TW (1) TW200829203A (fr)
WO (1) WO2008075682A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9707005B2 (en) 2014-02-14 2017-07-18 Ethicon Llc Lockout mechanisms for surgical devices

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112869795B (zh) * 2021-01-11 2022-03-11 李杨 一种外科手术用伤口缝合装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5880212U (ja) * 1981-11-13 1983-05-31 アメリカン・サイアナミド・カンパニ− 外科用縫綴制御装置およびストツパ
JPH04117955A (ja) * 1989-12-21 1992-04-17 Edward Weck Inc 外科用ステープラー
JP2006006816A (ja) * 2004-06-29 2006-01-12 Max Co Ltd 医療用ステープラの操作レバーガイド機構

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5880212U (ja) * 1981-11-13 1983-05-31 アメリカン・サイアナミド・カンパニ− 外科用縫綴制御装置およびストツパ
JPH04117955A (ja) * 1989-12-21 1992-04-17 Edward Weck Inc 外科用ステープラー
JP2006006816A (ja) * 2004-06-29 2006-01-12 Max Co Ltd 医療用ステープラの操作レバーガイド機構

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9707005B2 (en) 2014-02-14 2017-07-18 Ethicon Llc Lockout mechanisms for surgical devices
US10842524B2 (en) 2014-02-14 2020-11-24 Ethicon Llc Lockout mechanisms for surgical devices

Also Published As

Publication number Publication date
TW200829203A (en) 2008-07-16
JP4737065B2 (ja) 2011-07-27
JP2008148953A (ja) 2008-07-03

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