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WO2002045601A1 - Bistouri - Google Patents

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Publication number
WO2002045601A1
WO2002045601A1 PCT/JP2000/008574 JP0008574W WO0245601A1 WO 2002045601 A1 WO2002045601 A1 WO 2002045601A1 JP 0008574 W JP0008574 W JP 0008574W WO 0245601 A1 WO0245601 A1 WO 0245601A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
surgical scalpel
hole
handle
incision
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.)
Ceased
Application number
PCT/JP2000/008574
Other languages
English (en)
Japanese (ja)
Inventor
Shoichi Nakamura
Nagahisa Machida
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.)
MACHIDA TOOLEX CO Ltd
ACP Japan Co Ltd
Original Assignee
MACHIDA TOOLEX CO Ltd
ACP Japan 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
Priority to JP11136565A priority Critical patent/JP2000325355A/ja
Application filed by MACHIDA TOOLEX CO Ltd, ACP Japan Co Ltd filed Critical MACHIDA TOOLEX CO Ltd
Priority to PCT/JP2000/008574 priority patent/WO2002045601A1/fr
Priority to US10/415,368 priority patent/US20040010278A1/en
Publication of WO2002045601A1 publication Critical patent/WO2002045601A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/3209—Incision instruments
    • A61B17/3211—Surgical scalpels, knives; Accessories therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/06—Measuring instruments not otherwise provided for
    • A61B2090/062—Measuring instruments not otherwise provided for penetration depth

Definitions

  • the present invention relates to a surgical scalpel used as a medical instrument for the human body and livestock.
  • a scalpel used in a surgical operation is composed of a blade portion and a handle portion, and there are several hundred types of blades having different shapes according to purposes, and several thousand types or more when considering the size.
  • the incision scalpel In order to make an accurate incision, the incision scalpel must have a cutting blade with a blade that can transmit the feeling of the incision to the surgeon as much as possible. What could satisfy the demands could not be realized.
  • the scalpel for incision requires that the incised surface or cut site be visible to the surgeon as much as possible in order to prevent the incision deeper than necessary because the biological tissue at the incised site opens. could not be realized to satisfy these requirements. Disclosure of the invention
  • the present invention provides a relief hole for air in the vicinity of the cutting edge of a blade, thereby achieving both rigidity and sharpness when cutting living tissue, and furthermore, the relief hole has a role of an incision depth scale.
  • the purpose is to provide a scalpel.
  • the present invention provides a surgical scalpel having good visibility of an incision surface or a cut site at the time of incision, without the incised body tissue sticking to the blade surface due to an air escape hole provided in the blade.
  • the purpose is to:
  • the scalpel according to the present invention is provided near the cutting surface formed on the blade of the blade. It has a through hole extending from the front surface to the back surface.
  • the surgical scalpel according to the present invention has a plurality of through holes near the cutting surface formed on the blade of the blade portion and extending from the front surface to the back surface of the blade along the cutting surface.
  • This through hole may be an elongated slit or a minute hole, and the shape of the through hole may be a circle, an ellipse, a triangle, a square, a polygon, or a slit arranged in a radial pattern.
  • the surgical scalpel according to the present invention has a through hole extending from the front surface to the rear surface in the vicinity of the cutting surface formed on the blade of the blade portion, and the blade portion can be removed from the handle and replaced.
  • the blade is attached to the handle by screwing screws or elasticity of a panel or collet chuck.
  • FIG. 1 is a view showing a first embodiment of a scalpel according to the present invention.
  • FIG. 2 is a view showing the blade part of FIG.
  • FIG. 3 shows an embodiment in which one circular through hole is provided at the tip of the blade.
  • FIG. 4 shows an embodiment in which two elliptical through holes are provided at the tip of the blade.
  • FIG. 5 shows an embodiment in which through holes are provided in a line along the cutting edge surface.
  • FIG. 6 shows an embodiment in which a number of minute holes are provided in a portion where the cutting surface of the blade is provided.
  • FIG. 7 is a view showing a second embodiment of the scalpel of the present invention.
  • FIG. 8 is a view showing the blade portion of FIG.
  • FIG. 9 shows an embodiment in which slits arranged radially are provided at the tip of the blade.
  • FIG. 10 shows a third embodiment in which the blade is attached to the handle by a collet chuck.
  • FIG. 11 shows an embodiment in which a through hole is provided along the cutting edge surface and a substance having water repellency is applied to the tip of the blade.
  • FIG. 1 is a view showing a first embodiment of a scalpel according to the present invention.
  • the blade 2 is detachably fixed to the handle 3 of the scalpel 1.
  • the blade portion 2 is formed by integrating a blade 4 and a mounting portion 5 to the handle portion 3.
  • the blade 4 is formed into a desired shape by precisely pressing a steel material capable of achieving both rigidity and sharpness, for example, molybdenum vanadium steel. Then, the blade 4 is subjected to electrolytic polishing to remove burrs formed by press working, so that the blade 4 is securely mounted on a special jig.
  • a steel material capable of achieving both rigidity and sharpness for example, molybdenum vanadium steel.
  • grinding is performed using the above-mentioned dedicated tool.
  • an NC-controlled grinding machine so that the grinding direction is a fixed angle from the R center, and interlock with a special jig, Process the shape.
  • the surface of the blade 4 along the cutting surface 6 by laser beam machining, electric discharge machining, plastic working (punch press), etc. near the cutting surface 6 while being fixed to the special jig.
  • the surface is machined to any fine shape (for example, dimple shape, slit shape, etc.) using laser beam machining, electric discharge machining, ion edging, etc. After that, the finishing process is performed using several types of grindstones using a special jig as described above. Then, in order to match the sharpness of the blade to the working characteristics as a final processing step, fine burrs attached to the blade edge are removed again by electrolytic polishing.
  • the combination of the fine processing of the through holes 7 and the surface and the two types of fine shapes allows the escape of air, body fluid (blood), fat, etc. at the time of incision of the living tissue. Cut surface does not stick to blade 4.
  • the blade part 2 is made replaceable with the handle part 3.
  • the handle 3 may be made of metal or plastic, but is provided with a slip stopper 8 so that the scalpel 1 can be securely gripped during surgery.
  • FIG. 2 is a view showing the blade portion 2.
  • the blade 4 is fixed to the mounting part 5 and integrated.
  • a male screw 9 is formed in the mounting portion 5, and the blade portion 2 is screwed to a female screw (not shown) formed in the handle portion 3 and is detachably mounted. Attaching the blade to the handle by screwing in this way does not cause play due to the attachment, and is suitable for a small scalpel with a small blade for performing precise surgery.
  • a mark 15 indicating the distance from the tip of the blade may be engraved on the front or back surface of the blade. At this point, the mark 15 may be used also as a through hole or a slit provided near the cutting edge surface according to the present invention. With such a mark 15, it is possible to easily know the standard of the incision depth of the skin at the time of surgery. Needless to say, the mark 15 indicating the distance from the tip of the blade can be similarly applied to other embodiments according to the present invention.
  • FIGS. 3 to 6 and 9 show the tip of the blade.
  • one circular through hole 7 is drilled from the front surface to the back surface of the blade 4 near the arc-shaped cutting surface 6 provided at the tip of the blade 4 according to the shape.
  • the living tissue is cut with the taper of the cutting edge surface 6, and the incision is opened due to the thickness of the blade and the presence of the through hole 7 that acts as an air escape hole. There is no.
  • the vicinity of the tip of the blade surface 4 can be visually recognized, so that the surgeon can easily perform the incision operation.
  • a small elliptical through hole 7a is provided near the arc-shaped cutting surface 6 provided at the tip of the blade 4 according to the shape thereof, and a larger ellipse is provided next to the hole.
  • the through hole 7b is drilled.
  • the number of elliptical holes is not limited to two, and three or more holes may be provided.
  • the cutting edge 6 is provided near the cutting edge 6 at the tip of the blade 4 and along the cutting edge 6 in comparison with the radius of curvature of the cutting edge 6, about one fifth to one tenth.
  • a number of minute through holes 7d are formed in the blade surface 4 near the portion where the cutting surface 6 is provided.
  • the feeling at the time of incision is slightly different from that of the other embodiments, but the same effect can be obtained.
  • the through hole 7 formed in the blade 4 does not need to be circular, and may be any shape such as an ellipse, a triangle, a square, a polygon, and a star.
  • FIG. 7 is a view showing a second embodiment of the scalpel according to the present invention.
  • the blade 2 is detachably fixed to the handle 3 of the scalpel 1.
  • the blade part 2 and the blade 4 and the mounting part 5 are formed in a body by the same manufacturing method using the same material as in the first embodiment.
  • the peripheral edge of the blade 4 is polished, and the cutting surface 6 is formed in a tapered shape.
  • An elongated slit 10 is formed in the blade 4 near the cutting edge surface 6 so as to penetrate from the front surface to the rear surface.
  • the number of the slits 10 is not limited to one, and a similar effect can be obtained by forming a plurality of slits.
  • FIG. 8 is a view showing the blade portion 2.
  • the insertion portion 11 provided at the other end of the blade 4 is inserted into the handle portion 3 and is attached to the handle portion 3 by means of a panel or the like in a known manner.
  • the slits 10a are provided in the vicinity of the tip of the blade 4 provided with the cutting surface 6 so as to penetrate from the front surface to the rear surface and are arranged in a radial pattern.
  • the surgical scalpel described in the above embodiments can be used not only for the human body but also for the surgical operation of animals such as livestock animals.
  • the material of the mounting part 5 is a material that can securely fix the blade 4 to the mounting part 5,
  • the material of the mounting part 5 is a material that can securely fix the blade 4 to the mounting part 5
  • both parts may be formed as an integral structure without having to replace the blade part 2 with the handle part 3.
  • FIG. 10 is a diagram showing a third embodiment in which the blade portion 2 is attached to the handle portion 3 by the collet chuck 13.
  • a plurality of through holes 7 are formed in the cutting surface 6 of the blade portion 2.
  • the blade portion 2 may have any cutting surface as long as it can be fixed by the collet chuck 13.
  • FIG. 11 is basically the same as the first embodiment in that a plurality of through holes 7 are formed along the cutting surface 6 of the blade 4. However, a substance 12 having water repellency is applied near the tip of the blade 4. As the substance having water repellency, synthetic resin, paraffin, casein, soybean protein, ⁇ , and the like are suitable. In the examples, one type was selected and applied.
  • the cut portion of the incised portion becomes sharp and opens naturally, and furthermore, the escape hole has a necessary minimum incision. It becomes a depth scale. Therefore, the cut living tissue does not stick to the blade surface, and the incision operation can be easily performed. In addition, since the cut surface of the living tissue is not destroyed, anastomosis is easy, and the wound is healed quickly.

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 un bistouri formé avec des trous pour laisser passer l'air à proximité du bord coupant de la lame afin d'obtenir une netteté améliorée lors de l'incision sans que le tissu vivant incisé puisse coller à la surface de la lame, ainsi qu'une visibilité améliorée de la surface incisée ou de la zone coupée. Ce bistouri possède une tige et un bord coupant, un ou plusieurs trous traversants s'étendant de l'avant à l'arrière de lame afin de laisser passer l'air durant l'incision du tissu vivant étant formés à proximité de la surface du bord coupant formée sur la lame. Ces trous traversants ne sont pas exclusivement de forme circulaire, ils peuvent être de forme ovale ou polygonale ou en forme de fentes ou d'autres ouvertures allongées. Il peut également y avoir plusieurs trous très petits.
PCT/JP2000/008574 1999-05-18 2000-12-04 Bistouri Ceased WO2002045601A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP11136565A JP2000325355A (ja) 1999-05-18 1999-05-18 外科用メス
PCT/JP2000/008574 WO2002045601A1 (fr) 1999-05-18 2000-12-04 Bistouri
US10/415,368 US20040010278A1 (en) 1999-05-18 2000-12-04 Surgical knife

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11136565A JP2000325355A (ja) 1999-05-18 1999-05-18 外科用メス
PCT/JP2000/008574 WO2002045601A1 (fr) 1999-05-18 2000-12-04 Bistouri

Publications (1)

Publication Number Publication Date
WO2002045601A1 true WO2002045601A1 (fr) 2002-06-13

Family

ID=26344988

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/008574 Ceased WO2002045601A1 (fr) 1999-05-18 2000-12-04 Bistouri

Country Status (2)

Country Link
JP (1) JP2000325355A (fr)
WO (1) WO2002045601A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1551319A4 (fr) * 2002-07-24 2006-11-08 Synergetics Inc Dispositif pour neurotomie optique radiale
US9730756B2 (en) 2011-02-24 2017-08-15 Eximo Medical Ltd. Hybrid catheter for vascular intervention
US11684420B2 (en) 2016-05-05 2023-06-27 Eximo Medical Ltd. Apparatus and methods for resecting and/or ablating an undesired tissue
EP4393420A1 (fr) * 2022-09-27 2024-07-03 Nihon Kohden Corporation Dispositif d'implant, ensemble d'implant et support
US12038322B2 (en) 2022-06-21 2024-07-16 Eximo Medical Ltd. Devices and methods for testing ablation systems
US12376904B1 (en) 2020-09-08 2025-08-05 Angiodynamics, Inc. Dynamic laser stabilization and calibration system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000325355A (ja) * 1999-05-18 2000-11-28 Nippon Acp Kk 外科用メス
CN105699114A (zh) * 2016-03-28 2016-06-22 贵州大学 一种多功能动物组织采样刀

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1390720A (en) * 1920-09-04 1921-09-13 Henry K Powers Combined antiseptic case and surgical knife
JPS51159488U (fr) * 1975-06-13 1976-12-18
JPS54143757U (fr) * 1978-03-28 1979-10-05
JPH04239635A (ja) * 1991-01-23 1992-08-27 Matsushita Electric Ind Co Ltd 単分子コーティング物体及びその製造方法
JPH0889668A (ja) * 1994-09-28 1996-04-09 Fuminori Imada 庖 丁
WO1997011646A1 (fr) * 1995-09-29 1997-04-03 Maxilon Laboratories, Inc. Appareil et procede de prelevement d'os
JP3036470U (ja) * 1996-01-19 1997-04-22 寛 鄭 歯科用目盛付メス
JP2000325355A (ja) * 1999-05-18 2000-11-28 Nippon Acp Kk 外科用メス

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1390720A (en) * 1920-09-04 1921-09-13 Henry K Powers Combined antiseptic case and surgical knife
JPS51159488U (fr) * 1975-06-13 1976-12-18
JPS54143757U (fr) * 1978-03-28 1979-10-05
JPH04239635A (ja) * 1991-01-23 1992-08-27 Matsushita Electric Ind Co Ltd 単分子コーティング物体及びその製造方法
JPH0889668A (ja) * 1994-09-28 1996-04-09 Fuminori Imada 庖 丁
WO1997011646A1 (fr) * 1995-09-29 1997-04-03 Maxilon Laboratories, Inc. Appareil et procede de prelevement d'os
JP3036470U (ja) * 1996-01-19 1997-04-22 寛 鄭 歯科用目盛付メス
JP2000325355A (ja) * 1999-05-18 2000-11-28 Nippon Acp Kk 外科用メス

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1551319A4 (fr) * 2002-07-24 2006-11-08 Synergetics Inc Dispositif pour neurotomie optique radiale
US9730756B2 (en) 2011-02-24 2017-08-15 Eximo Medical Ltd. Hybrid catheter for vascular intervention
US9763735B2 (en) 2011-02-24 2017-09-19 Eximo Medical Ltd. Hybrid catheter for endoluminal intervention
US10258409B2 (en) 2011-02-24 2019-04-16 Eximo Medical Ltd. Hybrid catheter for endoluminal intervention
US10363099B2 (en) 2011-02-24 2019-07-30 Eximo Medical Ltd. Hybrid catheter for vascular intervention
US11576724B2 (en) 2011-02-24 2023-02-14 Eximo Medical Ltd. Hybrid catheter for vascular intervention
US12042223B2 (en) 2011-02-24 2024-07-23 Eximo Medical Ltd. Hybrid catheter for vascular intervention
US11684420B2 (en) 2016-05-05 2023-06-27 Eximo Medical Ltd. Apparatus and methods for resecting and/or ablating an undesired tissue
US12376904B1 (en) 2020-09-08 2025-08-05 Angiodynamics, Inc. Dynamic laser stabilization and calibration system
US12038322B2 (en) 2022-06-21 2024-07-16 Eximo Medical Ltd. Devices and methods for testing ablation systems
EP4393420A1 (fr) * 2022-09-27 2024-07-03 Nihon Kohden Corporation Dispositif d'implant, ensemble d'implant et support

Also Published As

Publication number Publication date
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