WO1992013493A1 - Knife, in particular for surgical purposes - Google Patents
Knife, in particular for surgical purposes Download PDFInfo
- Publication number
- WO1992013493A1 WO1992013493A1 PCT/NL1992/000023 NL9200023W WO9213493A1 WO 1992013493 A1 WO1992013493 A1 WO 1992013493A1 NL 9200023 W NL9200023 W NL 9200023W WO 9213493 A1 WO9213493 A1 WO 9213493A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- strip
- handle
- plastic sleeve
- cutting blade
- knife
- Prior art date
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
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
- A61B17/3211—Surgical scalpels, knives; Accessories therefor
- A61B17/3213—Surgical scalpels, knives; Accessories therefor with detachable blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B5/00—Hand knives with one or more detachable blades
Definitions
- Knife in particular for surgical purposes.
- the invention relates to a knife, comprising a handle and an exchangeable cutting blade, in particular a knife for surgical purposes, which handle is provided at one end with means for holding the cutting blade.
- a knife comprising a handle and an exchangeable cutting blade, in particular a knife for surgical purposes, which handle is provided at one end with means for holding the cutting blade.
- Such knives have already been in use for decades as surgical knives, while the cutting blades can be of different shapes, depending on the purpose for which the knife is intended. In recent years such knives have also been used for other purposes, on account of their handiness and relatively low price.
- a known knife see, for example, US Patent
- one end of the handle is provided with pin-shaped projections at short intervals and the cutting blade is provided with recesses at corresponding places.
- This known knife has the disadvantage that the slit-shaped recess and the cutting blade weaken and there is still a risk of injuries when the cutting blade is being inserted or removed.
- the object of the invention is to avoid these disadvantages.
- the cutting blade comprises a cutting part and a strip-shaped holding part, which strip-shaped part is surrounded by a polygonal plastic sleeve which is firmly connected at one end near the cutting part to the strip-shaped part and also encloses the strip-shaped part with play
- the handle is provided with a fixing part which can accommodate the strip-shaped part in a snug fit on the inside and on the outside can engage in a snug fit in the space between strip-shaped part and inside of the plastic sleeve, and in that locking means are present between at least one wall of the plastic sleeve and at least one side of the fixing part of the handle.
- Fig. 1 is a perspective side view of a handle of a knife according to the invention
- Fig. 2 is a corresponding side view of the other side;
- Fig. 3 s a perspective side view of the exchangeable cutting blade, which can be fixed by sliding onto a handle according to Figs. 1 and 2;
- Fig. is a longitudinal section through a cutting blade according to the invention.
- Fig. is a perspective view of another type of cutting blade.
- the handle 1 according to Figs. 1 and 2 can be of any desired cross-section and of any desired length. Nor is the material from which it is made, generally metal, of importance for the invention.
- the handle 1 is provided with a fixing part 2 which is integral therewith, and which in cross-section is prsferably the shape of a C with right angles.
- a straight-walled tuoe can, however, also be used.
- the fixing part 2 is preferably made of metal.
- a lobe 2a is present on the rear side of one wall of the fixing part 2, near the free end thereof (see Fig. 2) .
- the cutting blade comprises a cutting part 3 and a strip-shaped part 4 which is integral therewith, and a fixing sleeve 5-
- the cutting part 3 can be of any desired shape and conprises one piece of metal with the strip-shaped part 4.
- This strip-shaped part 4 is identical for all types of cutting blades.
- the plastic sleeve encloses the strip-shaped part 4 with play and at the front side is connected at a to the metal part 3, 4.
- the cross-section shape and size of the strip-shaped part 4 am such that this part 4 can be slid without play into the fixing part 2 of the handle 1.
- the inner cross-section and size of the plastic sleeve 5 are such that the sleeve 5 can be slid without play over the fixing part 2 of the handle 1.
- a tilting catch element 6 is present, comprising two parts 6a and 6b and a hinge pin 6c which is integral therewith, which catch element 6 is fitted in a window of the above-mentioned wall of the plastic slseve -
- This catch element 6 is preferably integral with the plastic sleeve and such a catch element 6 is preferably present in two opposite walls of the plastic sleeve 5 «
- the part 6b of the catch element 6 situated more in the slseve 5 serves as the catch for the lobe 2a on the fixing part 2 of the handle 1. After sliding of the sleeve 5 onto the part 2, the catch 6b engages by itself behind the lobe 2a.
- the locking is released by pressing on the part 6a, and the cutting blade can then be removed.
- the latter can be gripped by the sleeve 5. so that there is less of a chance of injury.
- Fig. shows in perspective a different type of cutting blade, in which the sleeve 5 is extended forward with a part 7 which is integral therewith and has a transverse face 8 at the free end.
- the cutting blade 3 projects over a short distance, for example 0.1 - 0.3 mm, relative to the face 8.
- a recess 8a is present in said face 8, in order to improve the view of the cutting blade 3-
- Such a type of cutting blade prevents too deep cuts.
- the surgical knife according to the invention which can also be used for other purposes, offers great advantages for rapidly changing a cutting blade without any risk.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Mechanical Engineering (AREA)
- Biomedical Technology (AREA)
- Forests & Forestry (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)
- Knives (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4506089A JPH06505181A (en) | 1991-01-31 | 1992-01-29 | especially surgical knives |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL9100171 | 1991-01-31 | ||
NL9100171A NL9100171A (en) | 1991-01-31 | 1991-01-31 | KNIFE, ESPECIALLY FOR SURGICAL PURPOSES. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992013493A1 true WO1992013493A1 (en) | 1992-08-20 |
Family
ID=19858807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL1992/000023 WO1992013493A1 (en) | 1991-01-31 | 1992-01-29 | Knife, in particular for surgical purposes |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0569517A1 (en) |
JP (1) | JPH06505181A (en) |
AU (1) | AU1355892A (en) |
CA (1) | CA2101756A1 (en) |
NL (1) | NL9100171A (en) |
WO (1) | WO1992013493A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2768917A1 (en) * | 1997-09-30 | 1999-04-02 | Becton Dickinson Co | Reusable handle for disposable medical instrument |
EP1031322A3 (en) * | 1999-02-26 | 2000-10-18 | Thomas D. Petersen | Scalpel with a double blade edge and detachable handle |
CN113858273A (en) * | 2021-09-26 | 2021-12-31 | 中国人民解放军陆军军医大学第二附属医院 | Handle of pathological material taking cutter and pathological material taking cutter |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5010727B2 (en) * | 2010-12-03 | 2012-08-29 | 正一 中村 | Medical instruments |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191517804A (en) * | 1915-12-20 | 1916-07-27 | Arthur William Jones | Improvements in Surgeon's Knives. |
GB2209301A (en) * | 1987-09-03 | 1989-05-10 | Neil Holdings Ltd James | Hand tools |
US4844070A (en) * | 1987-10-02 | 1989-07-04 | Dee Robert N | Changeable scalpel blade and chuck assembly |
US4985034A (en) * | 1989-06-01 | 1991-01-15 | Board Of Regents, The University Of Texas System | Safety surgical blade, handle and shield |
-
1991
- 1991-01-31 NL NL9100171A patent/NL9100171A/en not_active Application Discontinuation
-
1992
- 1992-01-29 CA CA 2101756 patent/CA2101756A1/en not_active Abandoned
- 1992-01-29 EP EP92905837A patent/EP0569517A1/en not_active Ceased
- 1992-01-29 WO PCT/NL1992/000023 patent/WO1992013493A1/en not_active Application Discontinuation
- 1992-01-29 AU AU13558/92A patent/AU1355892A/en not_active Abandoned
- 1992-01-29 JP JP4506089A patent/JPH06505181A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191517804A (en) * | 1915-12-20 | 1916-07-27 | Arthur William Jones | Improvements in Surgeon's Knives. |
GB2209301A (en) * | 1987-09-03 | 1989-05-10 | Neil Holdings Ltd James | Hand tools |
US4844070A (en) * | 1987-10-02 | 1989-07-04 | Dee Robert N | Changeable scalpel blade and chuck assembly |
US4985034A (en) * | 1989-06-01 | 1991-01-15 | Board Of Regents, The University Of Texas System | Safety surgical blade, handle and shield |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2768917A1 (en) * | 1997-09-30 | 1999-04-02 | Becton Dickinson Co | Reusable handle for disposable medical instrument |
EP1031322A3 (en) * | 1999-02-26 | 2000-10-18 | Thomas D. Petersen | Scalpel with a double blade edge and detachable handle |
CN113858273A (en) * | 2021-09-26 | 2021-12-31 | 中国人民解放军陆军军医大学第二附属医院 | Handle of pathological material taking cutter and pathological material taking cutter |
CN113858273B (en) * | 2021-09-26 | 2023-02-28 | 中国人民解放军陆军军医大学第二附属医院 | Handle of pathological material taking cutter and pathological material taking cutter |
Also Published As
Publication number | Publication date |
---|---|
JPH06505181A (en) | 1994-06-16 |
CA2101756A1 (en) | 1992-08-01 |
AU1355892A (en) | 1992-09-07 |
NL9100171A (en) | 1992-08-17 |
EP0569517A1 (en) | 1993-11-18 |
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