US3905101A - Disposable surgical scalpel - Google Patents
Disposable surgical scalpel Download PDFInfo
- Publication number
- US3905101A US3905101A US462319A US46231974A US3905101A US 3905101 A US3905101 A US 3905101A US 462319 A US462319 A US 462319A US 46231974 A US46231974 A US 46231974A US 3905101 A US3905101 A US 3905101A
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- United States
- Prior art keywords
- sheath
- blade
- handle
- scalpel
- lug
- Prior art date
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Classifications
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- 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
-
- 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
- A61B17/3215—Packages or dispensers for scalpel blades
-
- 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
- A61B17/3217—Devices for removing or collecting used scalpel blades
-
- 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
- A61B2017/32113—Surgical scalpels, knives; Accessories therefor with extendable or retractable guard or blade
Definitions
- a disposable surgical scalpel assembly which comprises a frangible handle, a cutting blade and a sheath in a single unitary assembly.
- the sheath is attached to the handle and movable to blade guarding and blade unguarded positions. When the sheath is in a blade unguarded position, with the blade exposed, the sheath serves as a gripping surface for the handle.
- the sheath component of the assembly may be releasably locked in either position for safe handling.
- U.S. Pat No.-2,735,176 discloses a veterinary surgical knife which comprises a hollow handle component having a slidably extensible blade.
- a similar cutting instrument is disclosed in U.S. Pat. No. 2,512,237.
- the latter instruments employ the handle component as a sheath for the blade component when not in use.
- Such sheathable blades are not contemplated for disposal after a single use and are relatively costly in that they generally employ sophisticated locking mechanisms and relatively complex protraction and retraction mechanisms.
- the surgical scalpel of this invention obviates many of the prior art problems.
- the surgical scalpel of this invention includes a means of sheathing the blade component wtihout risking the hazards of blade removal.
- Third, the sealpel is unitary in construction. assuring that the sheath component will not become separated from the blade component and thereby lost, yet the means of attachment and dual use of the sheath as part of the gripping surface provides a scalpel which has the desired balance" or feel desired for the surgeons sensitive touch.
- the invention comprises a unitary, disposable surgical scalpel which comprises; a frangible handle. a cutting blade attached to said handle, a sheath movably attached to said handle, means for releasably locking said sheath in a first position sheathing said blade and means for releasably locking said sheath in a second position exposing the blade.
- unitary as used herein means a singleinonoassembly.
- FIG. 1 is an isometric drawing of an embodiment of the invention showing a surgical scalpel with sheath as sembly. The sheath is shown in the blade sheathing position.
- FIG. 2 is an isometric view of the embodiment shown in FIG. 1 but with the sheath in a retracted or operating position exposing the cutting blade.
- FIG. 3 is a schematic view showing the assembly of FIG. 1 in disassembly.
- FIG. 4 is a cross-sectional view taken along lines 4-4 of FIG. 1.
- the disposable scalpel of the invention is conveniently fabricated by conventional and standard methods for preparing surgical scalpels using conventional and standard materials.
- the blade component of the surgical scalpel may be the standard surgical steel blade conventionally employed in making surgical scalpels.
- the handle and sheath components of the scalpel may be fabricated from conventional polymer materials such as, for example, polystyrene, polycarbonate, polyurethane. polyethylene, phenolformaldehyde resins, polybutylene and like polymeric materials.
- FIG. 1 is an overall view of an embodiment of the invention.
- the disposable surgical scalpel embodiment shown comprises a handle 10 which comprises a butt l2 and a shank 14 which is reduced in thickness and over which sheath 16 may slide.
- Sheath I6 is shown in a position covering the blade component of the surgical scalpel.
- the sheath position illustrated in- FIG. I is for covering and protecting the blade component prior to use.
- the sheath has an aperture 26 for receiving lug 29 which is an integral part of the underlying shank 14 being mounted on a resilient bar portion of shank 14 (not seen under sheath 16). Lug 29 when inserted through aperture 26 blocks movement of the sheath in forward or rearward movement.
- lug 20 will engage aperture 26 to lock sheath 16 in a blade 24 exposing position as seen best in FIG. 2.
- sheath 16 serves as a gripping surface when using the scalpel.
- sheath 16 has raised surfaces 22 to provide a frictional surface for grasping. To cover the blade 24, the operator need only depress lug 20 on resilient bar 28 and move the sheath l6 forward until lug 29 again engages aperture 26 of sheath 16.
- the scalpel with blade covcred as shown in FIG. I may be safely discarded by breaking frangible shank I4 (facilitated by its reduced width) and depositing the broken parts in an appropriate receptacle. With the blade covered, no hazard is presented to handlers of the discarded pieces.
- sheath 16 comprises an elongate sheath open at both ends 18 and 21 and has frictional surfaces 22. At the top of sheath 16 is aperture 26.
- the handle comprises a butt end 12 and a shank l4 having a cut-out portion 15.
- Shank 14 is frangible, having a weakened area of reduced thickness. This weakened area is easily fractured when the sheath 16 is in a blade protecting position. This provides an easy method of breaking the handle 10 prior to disposal of the surgical scalpel. With the handle 10 broken.
- a reuse of the discarded blade is discouraged, particularly since access to the blade component is not easily obtained without the aid of a whole handle 10.
- the weakened portion of the shank 14 in no way impairs the use of the scalpel by a surgeon since when the sheath 1) component of the assembly is in a retracted position for operating use, the sheath 16 serves to strengthen and protect the handle 10, thereby obviating the likelihood that the thin portion of shank 14 would fracture while the scalpel is being employed.
- FIG. 3 also shows the mounting of blade 24 on blade support 31 where it is held in place by bayonet lock 42 and covered by blade mounting piece 33. As shown in FIG. 3, the blade 24 is fixedly attached by a bolt 46. However. in a preferred embodiment. blade 24 is permanently attached by ultrasonic welding of blade support 31 to blade mounting piece 33 with the blade 24 interposed.
- FIG. 3 also shows the lug 29 mounted on resilient bar 27 which is an integral part of shank 14. Bar 27 is sufficiently resilient to permit lug 29 to be depressed out of engagement with aperture 26 of sheath 16 when the scalpel is assembled in the blade covered position.
- FIG. 4 is a cross-sectional view taken along lines 4-4 of FIG. 1 and more clearly shows the relationship of lug 29, sheath l6 and shank 14.
- a unitary, disposable surgical scalpel which comprises.
- a scalpel of claim 1 wherein said sheath forms a gripping surface for said handle when said blade is unsheathed.
- a disposable surgical scalpel with sheath assembly which comprises:
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- 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
A disposable surgical scalpel assembly is disclosed which comprises a frangible handle, a cutting blade and a sheath in a single unitary assembly. The sheath is attached to the handle and movable to blade guarding and blade unguarded positions. When the sheath is in a blade unguarded position, with the blade exposed, the sheath serves as a gripping surface for the handle. The sheath component of the assembly may be releasably locked in either position for safe handling.
Description
United States Patent 1191 Shepherd 14 1 Sept. 16, 1975 DISPOSABLE SURGICAL SCALPEL [75] Inventor: John W. Shepherd, Montgomery,
[73] Assignee: Becton, Dickinson and Company,
East Rutherford, NJ.
[22] Filed: Apr. 19, 1974 [21] Appl. No.: 462,319
[52] us. Cl. 30/162; 30/320; 30/335; 30/339 [51] Int. Cl A61B 17/32; 3268 H08; 8268 5/00 [58] Field of Search 30/336, 335, 162, 320, 30/293, 151, 163, 164, 337, 338, 339, 329; 128/305 [56] References Cited UNITED STATES PATENTS 1,853,672 4/1932 Dodson 30/l62 1,888,488 11/1932 Brown 30/337 x 2,051,199 8 1936 Christianson 30/320 2,270,655 1/1942 Keeran 2.611,178 9 1952 Whipple et a1. 2,735,176 2 1956 COStin 2,749,924 6/1956 Polincovsky 30/162 x Nissen 3,025,598 3/1962 30/l62 3,448,518 6/1969 Sklar 30/l62 3,708,881 l/l973 Bennett. 30/335 3,765,089 l0/l973 lbata 30/l62 X FOREIGN PATENTS OR APPLICATIONS 670,894 8/l929 France 30/162 853,565 l2/l939 France 30/162 Primary Examiner-Al Lawrence Smith Assistant ExaminerJ. T. Zatarga Attorney, Agent, or FirmKane, Dalsimer, Kane, Sullivan and Kurucz [57] ABSTRACT A disposable surgical scalpel assembly is disclosed which comprises a frangible handle, a cutting blade and a sheath in a single unitary assembly. The sheath is attached to the handle and movable to blade guarding and blade unguarded positions. When the sheath is in a blade unguarded position, with the blade exposed, the sheath serves as a gripping surface for the handle. The sheath component of the assembly may be releasably locked in either position for safe handling.
3 Claims, 4 Drawing Figures PATENTEU 5 i 75 sum 2 of 2 DISPOSABLE SURGICAL SCALPEL BACKGROUND OF THE INVENTION 1. Field of the Invention The invention concerns medical-surgical instruments and more particularly concerns a disposable surgical scalpel.
2. Description of the Prior Art Although surgical scalpels have been used for centuries, little has been done in the way of advancing their basic design. In recent years, the commercially important surgical scalpels have been those having disposable blade portions. Illustrative of this type of surgical scalpel is that disclosed in US. Pat. No. 3,412,467. In scalpels of the latter type, the blade component is detachable from the handle component and disposed of by deposit in a special container which may thereafter be handled without hazard. It will be appreciated, however, that such disposable surgical scalpels still present a hazard to the individual who must detach and transfer the blade component.
U.S. Pat No.-2,735,176 discloses a veterinary surgical knife which comprises a hollow handle component having a slidably extensible blade. A similar cutting instrument is disclosed in U.S. Pat. No. 2,512,237. In effect, the latter instruments employ the handle component as a sheath for the blade component when not in use. Such sheathable blades are not contemplated for disposal after a single use and are relatively costly in that they generally employ sophisticated locking mechanisms and relatively complex protraction and retraction mechanisms.
The demand on the part of hospital administrators and liability insurance carriers for a disposable scalpel has increased considerably in recent years. The ultimate in desirability is a surgical scalpel which may be disposed of safely with the least potential for reusing the scalpel, and of course the instrument must be simple to operate and economical to produce.
The surgical scalpel of this invention obviates many of the prior art problems. First, the surgical scalpel of this invention includes a means of sheathing the blade component wtihout risking the hazards of blade removal. Second, once sheathed. access to the blade component requires a positive act, thereby assuring that the scalpel is unlikely to be accidentally unsheathed during handling for disposal. Third, the sealpel is unitary in construction. assuring that the sheath component will not become separated from the blade component and thereby lost, yet the means of attachment and dual use of the sheath as part of the gripping surface provides a scalpel which has the desired balance" or feel desired for the surgeons sensitive touch.
SUMMARY OF THE INVENTION The invention comprises a unitary, disposable surgical scalpel which comprises; a frangible handle. a cutting blade attached to said handle, a sheath movably attached to said handle, means for releasably locking said sheath in a first position sheathing said blade and means for releasably locking said sheath in a second position exposing the blade.
The term unitary as used herein means a singleinonoassembly.
(ill
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an isometric drawing of an embodiment of the invention showing a surgical scalpel with sheath as sembly. The sheath is shown in the blade sheathing position.
FIG. 2 is an isometric view of the embodiment shown in FIG. 1 but with the sheath in a retracted or operating position exposing the cutting blade.
FIG. 3 is a schematic view showing the assembly of FIG. 1 in disassembly.
FIG. 4 is a cross-sectional view taken along lines 4-4 of FIG. 1.
DETAILED DESCRIPTION OF THE INVENTION The disposable scalpel of the invention is conveniently fabricated by conventional and standard methods for preparing surgical scalpels using conventional and standard materials. For example, the blade component of the surgical scalpel may be the standard surgical steel blade conventionally employed in making surgical scalpels. The handle and sheath components of the scalpel may be fabricated from conventional polymer materials such as, for example, polystyrene, polycarbonate, polyurethane. polyethylene, phenolformaldehyde resins, polybutylene and like polymeric materials The disposable scalpels of the invention are conveniently described and exemplified by reference to the various specific embodiments set forth in the drawings attached hereto.
FIG. 1 is an overall view of an embodiment of the invention. The disposable surgical scalpel embodiment shown comprises a handle 10 which comprises a butt l2 and a shank 14 which is reduced in thickness and over which sheath 16 may slide. Sheath I6 is shown in a position covering the blade component of the surgical scalpel. The sheath position illustrated in- FIG. I is for covering and protecting the blade component prior to use. It will be seen from FIG. 1 that the sheath has an aperture 26 for receiving lug 29 which is an integral part of the underlying shank 14 being mounted on a resilient bar portion of shank 14 (not seen under sheath 16). Lug 29 when inserted through aperture 26 blocks movement of the sheath in forward or rearward movement. At the butt 12 end of shank 14 there is seen a second lug 20 on the end of resilient bar 28, which is an integral part of shank 14. By pressing lug 29 downwardly to disengage it from engagement with aperture 26, and retracting sheath 16 over lug 20, lug 20 will engage aperture 26 to lock sheath 16 in a blade 24 exposing position as seen best in FIG. 2. In this position, sheath 16 serves as a gripping surface when using the scalpel. In a preferred embodiment. sheath 16 has raised surfaces 22 to provide a frictional surface for grasping. To cover the blade 24, the operator need only depress lug 20 on resilient bar 28 and move the sheath l6 forward until lug 29 again engages aperture 26 of sheath 16. When desired, the scalpel with blade covcred as shown in FIG. I may be safely discarded by breaking frangible shank I4 (facilitated by its reduced width) and depositing the broken parts in an appropriate receptacle. With the blade covered, no hazard is presented to handlers of the discarded pieces.
The features hidden from view in FIGS. I and 2 are seen with greater clarity by reference to FIG. 3, where the various components making up the disposable surgical scalpel of FIGS. 1 and 2 are readily observed disassembled. Thus, sheath 16 comprises an elongate sheath open at both ends 18 and 21 and has frictional surfaces 22. At the top of sheath 16 is aperture 26. The handle comprises a butt end 12 and a shank l4 having a cut-out portion 15. Shank 14 is frangible, having a weakened area of reduced thickness. This weakened area is easily fractured when the sheath 16 is in a blade protecting position. This provides an easy method of breaking the handle 10 prior to disposal of the surgical scalpel. With the handle 10 broken. a reuse of the discarded blade is discouraged, particularly since access to the blade component is not easily obtained without the aid of a whole handle 10. The weakened portion of the shank 14 in no way impairs the use of the scalpel by a surgeon since when the sheath 1) component of the assembly is in a retracted position for operating use, the sheath 16 serves to strengthen and protect the handle 10, thereby obviating the likelihood that the thin portion of shank 14 would fracture while the scalpel is being employed.
FIG. 3 also shows the mounting of blade 24 on blade support 31 where it is held in place by bayonet lock 42 and covered by blade mounting piece 33. As shown in FIG. 3, the blade 24 is fixedly attached by a bolt 46. However. in a preferred embodiment. blade 24 is permanently attached by ultrasonic welding of blade support 31 to blade mounting piece 33 with the blade 24 interposed.
FIG. 3 also shows the lug 29 mounted on resilient bar 27 which is an integral part of shank 14. Bar 27 is sufficiently resilient to permit lug 29 to be depressed out of engagement with aperture 26 of sheath 16 when the scalpel is assembled in the blade covered position.
FIG. 4 is a cross-sectional view taken along lines 4-4 of FIG. 1 and more clearly shows the relationship of lug 29, sheath l6 and shank 14.
What is claimed is:
l. A unitary, disposable surgical scalpel which comprises.
a frangible handle;
a cutting blade attached to said handle;
a sheath movably attached to said handle;
means for releasably locking said sheath in a first position sheathing said blade; and
means for releasably locking said sheath in a second position exposing the blade.
2. A scalpel of claim 1 wherein said sheath forms a gripping surface for said handle when said blade is unsheathed.
3. A disposable surgical scalpel with sheath assembly which comprises:
a frangible handle;
a cutting blade affixed to one end of said handle;
a sheath movably attached to said handle and which when moved to a first position is releasably locked by a depressible lug attached to said handle which engages a lug receiving slot in said sheath, in a blade sheathing position; and which when moved to a second position is releasably locked by a depressible lug attached to said handle which engages a lug receiving slot in said sheath, in a blade exposing position; said sheath forming a gripping surface for holding the scalpel, when the sheath is in a blade exposing position.
Claims (3)
1. A unitary, disposable surgical scalpel which comprises, a frangible handle; a cutting blade attached to said handle; a sheath movably attached to said handle; means for releasably locking said sheath in a first position sheathing said blade; and means for releasably locking said sheath in a second position exposing the blade.
2. A scalpel of claim 1 wherein said sheath forms a gripping surface for said handle when said blade is unsheathed.
3. A disposable surgical scalpel with sheath assembly which comprises: a frangible handle; a cutting blade affixed to one end of said handle; a sheath movably attached to said handle and which when moved to a first position is releasably locked by a depressible lug attached to said handle which engages a lug receiving slot in said sheath, in a blade sheathing position; and which when moved to a second position is releasably locked by a depressible lug attached to said handle which engages a lug receiving slot in said sheath, in a blade exposing position; said sheath forming a gripping surface for holding the scalpel, when the sheath is in a blade exposing position.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US462319A US3905101A (en) | 1974-04-19 | 1974-04-19 | Disposable surgical scalpel |
Applications Claiming Priority (1)
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US462319A US3905101A (en) | 1974-04-19 | 1974-04-19 | Disposable surgical scalpel |
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US3905101A true US3905101A (en) | 1975-09-16 |
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US462319A Expired - Lifetime US3905101A (en) | 1974-04-19 | 1974-04-19 | Disposable surgical scalpel |
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Cited By (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4646440A (en) * | 1984-05-31 | 1987-03-03 | Decker John R | Replaceable blade knife |
US4735202A (en) * | 1986-10-06 | 1988-04-05 | Alcon Laboratories, Inc. | Microsurgical knife with locking blade guard |
DE3722899A1 (en) * | 1987-07-08 | 1989-01-19 | Peters Tim | Scalpel |
US4922614A (en) * | 1987-04-30 | 1990-05-08 | Kai Cutlery Center Co., Ltd. | Cutter |
GB2227412A (en) * | 1989-01-06 | 1990-08-01 | Yin Chu Chien | Disposable explorer with frangible handle |
US4985034A (en) * | 1989-06-01 | 1991-01-15 | Board Of Regents, The University Of Texas System | Safety surgical blade, handle and shield |
US5071426A (en) * | 1989-04-06 | 1991-12-10 | Stuart Dolgin | Surgical scalpel with retractable blade guard |
US5085663A (en) * | 1989-12-27 | 1992-02-04 | Bernard Tarr | Surgical knife with angular cut control and method of using the same |
US5139507A (en) * | 1989-04-06 | 1992-08-18 | Stuart Dolgin | Surgical scalpel with retractable blade guard |
FR2673099A1 (en) * | 1991-02-27 | 1992-08-28 | Taillandier Gerard | BISTOURI-TYPE INCISION INSTRUMENT COMPRISING A BLADE PROTECTION MEANS. |
US5201748A (en) * | 1992-06-01 | 1993-04-13 | Newman Philip H | Retractable-bladed surgical scalpel |
US5207696A (en) * | 1992-04-30 | 1993-05-04 | Medical Sterile Products, Inc. | Surgical scalpel |
WO1993011916A1 (en) * | 1991-12-18 | 1993-06-24 | American Safety Razor Company | Disposable surgical scalpel with safety guard |
EP0555196A1 (en) * | 1992-01-24 | 1993-08-11 | Michael R. Abidin | Surgical scalpel with retractable guard |
US5254128A (en) * | 1990-10-11 | 1993-10-19 | Micro Engineering, Inc. | Surgical knife with attached, movable blade protector |
US5299357A (en) * | 1991-12-18 | 1994-04-05 | American Safety Razor Company | Disposable surgical scalpel with safety guard |
US5330494A (en) * | 1993-01-22 | 1994-07-19 | Cornelis A. van der Westhuizen | Knife |
US5403337A (en) * | 1994-07-05 | 1995-04-04 | Platts; David | Retractable-bladed surgical scalpel |
US5411512A (en) * | 1992-01-24 | 1995-05-02 | Leonard Bloom | Guarded surgical scalpel |
US5431672A (en) * | 1994-05-09 | 1995-07-11 | Becton, Dickinson And Company | Surgical scalpel with retractable blade |
US5496340A (en) * | 1992-01-24 | 1996-03-05 | Leonard Bloom | Combination guarded surgical scalpel and blade stripper |
US5527329A (en) * | 1993-12-08 | 1996-06-18 | Devon Industries, Inc. | Surgical scalpel |
US5620454A (en) * | 1994-10-25 | 1997-04-15 | Becton, Dickinson And Company | Guarded surgical scalpel |
WO1997029891A1 (en) * | 1996-02-16 | 1997-08-21 | Noble House Group Pty. Ltd. | Cutter assembly |
US5683407A (en) * | 1995-10-19 | 1997-11-04 | Becton, Dickinson And Company | Cleanable guarded surgical scalpel with scalpel blade remover |
US5827309A (en) * | 1994-10-25 | 1998-10-27 | Becton, Dickinson And Company | Guarded surgical scalpel with scalpel blade remover |
US5938675A (en) * | 1993-12-08 | 1999-08-17 | Beckton, Dickinson And Company | Surgical scalpel |
US6022364A (en) * | 1995-10-24 | 2000-02-08 | Flumene; Antonio Giovanni | Disposable surgical safety scalpel |
US6626925B2 (en) | 2001-03-29 | 2003-09-30 | Becton Dickinson And Company | Shielded surgical scalpel |
WO2004026151A1 (en) * | 2002-09-20 | 2004-04-01 | Occupational & Medical Innovations Ltd | Surgical scalpel with retractable guard |
US6757977B2 (en) * | 2001-11-20 | 2004-07-06 | Jai Surgicals Limited | Disposable surgical safety scalpel |
US20040215174A1 (en) * | 2003-04-22 | 2004-10-28 | Morawski Michael J. | Surgical knife safety handle |
US20050015104A1 (en) * | 2003-04-22 | 2005-01-20 | Morawski Michael J. | Surgical knife safety handle |
US6884240B1 (en) | 2001-12-07 | 2005-04-26 | Ronald Dykes | Protection system for surgical instruments |
US20050228420A1 (en) * | 2004-03-22 | 2005-10-13 | Becton, Dickinson And Company | Surgical scalpel assembly |
US20050279363A1 (en) * | 2004-06-22 | 2005-12-22 | Rafael Cruz | Combination tracheal hook and scalpel device |
US20060085019A1 (en) * | 2004-10-20 | 2006-04-20 | Becton, Dickinson And Company | Surgical knife safety handle having user operable lock |
AU2003258377B2 (en) * | 2002-09-20 | 2006-12-21 | Southmedic Incorporated | Surgical scalpel with retractable guard |
US20080051813A1 (en) * | 2004-09-13 | 2008-02-28 | University Of Massachusetts | Adapter Sleeve |
WO2008132762A1 (en) * | 2007-04-26 | 2008-11-06 | Poly Medicure Limited | A surgical safety scalpel |
WO2009146149A3 (en) * | 2008-04-04 | 2010-01-21 | Tactical Medical Solutions, Inc. | Combination tracheal hook and surgical blade |
US20100125293A1 (en) * | 2008-11-20 | 2010-05-20 | Gregory Allen Auchter | Guarded surgical knife handle |
US20100125290A1 (en) * | 2008-11-20 | 2010-05-20 | Gregory Allen Auchter | Guarded surgical knife handle |
USRE42507E1 (en) | 1993-12-08 | 2011-06-28 | Aspen Surgical Products, Inc. | Surgical scalpel |
US20110259154A1 (en) * | 2008-12-01 | 2011-10-27 | Dong Yool Lee | Opener |
US8181352B1 (en) * | 2008-12-03 | 2012-05-22 | Shackelford Sr Howard L | Scalpel with removable blade assembly |
US20120215241A1 (en) * | 2010-04-09 | 2012-08-23 | Oasis Medical, Inc. | Micro surgical knife with safety feature |
US20120226297A1 (en) * | 2011-03-04 | 2012-09-06 | Vascular Device Partners Llc | Hand-held vein removal device |
US8464430B2 (en) | 2008-02-07 | 2013-06-18 | Beaver-Visitec International (Us), Inc. | Retractable safety knife |
WO2013163708A1 (en) * | 2012-05-04 | 2013-11-07 | Pacheco De Souza Fabio Andre | Micro-incision instrument |
US20150119913A1 (en) * | 2012-04-26 | 2015-04-30 | Scalpel Innovation, Inc. | Safety scalpel |
US20150182247A1 (en) * | 2012-09-05 | 2015-07-02 | Sterilance Medical (Suzhou) Inc. | Kind of safety scalpel |
US9622772B2 (en) | 2013-11-13 | 2017-04-18 | Steven M Hacker | Surgical scalpel handle assembly system and method for requiring a verification process performed prior to and during surgery using actuators to unlock and engage blade holder in ready for cutting position |
US10123815B2 (en) | 2015-02-13 | 2018-11-13 | Precision Engineered Products, Llc | Surgical knife |
US10251720B1 (en) * | 2013-11-13 | 2019-04-09 | Nano 2.0 Business Press, Llc | Surgical scalpel handle assembly system and method for requiring a verification process |
US11000309B2 (en) * | 2018-05-31 | 2021-05-11 | Medi-Safe Surgicals (Pty) Ltd | Safety scalpel |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1853672A (en) * | 1931-06-08 | 1932-04-12 | Alcada F Dodson | Pocket knife |
US1888488A (en) * | 1931-09-05 | 1932-11-22 | Robert E Brown | Knife |
US2051199A (en) * | 1935-01-18 | 1936-08-18 | George M Christianson | Plaster cutter |
US2270655A (en) * | 1941-02-01 | 1942-01-20 | Charles R Keeran | Pocketknife |
US2611178A (en) * | 1947-03-03 | 1952-09-23 | Burdette E Bostwick | Pocket implement |
US2735176A (en) * | 1956-02-21 | Veterinary surgical knife | ||
US2749924A (en) * | 1953-08-12 | 1956-06-12 | Polincovsky Jack | Combination knife |
US3025598A (en) * | 1958-10-13 | 1962-03-20 | Gillette Co | Knife |
US3448518A (en) * | 1967-07-27 | 1969-06-10 | Harry Sklar | Knife |
US3708881A (en) * | 1971-03-22 | 1973-01-09 | R Bennett | Multi position adjustable roofing knife |
US3765089A (en) * | 1971-06-16 | 1973-10-16 | Nippon Tenshashi Kk | Knife with adjustable blade |
-
1974
- 1974-04-19 US US462319A patent/US3905101A/en not_active Expired - Lifetime
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2735176A (en) * | 1956-02-21 | Veterinary surgical knife | ||
US1853672A (en) * | 1931-06-08 | 1932-04-12 | Alcada F Dodson | Pocket knife |
US1888488A (en) * | 1931-09-05 | 1932-11-22 | Robert E Brown | Knife |
US2051199A (en) * | 1935-01-18 | 1936-08-18 | George M Christianson | Plaster cutter |
US2270655A (en) * | 1941-02-01 | 1942-01-20 | Charles R Keeran | Pocketknife |
US2611178A (en) * | 1947-03-03 | 1952-09-23 | Burdette E Bostwick | Pocket implement |
US2749924A (en) * | 1953-08-12 | 1956-06-12 | Polincovsky Jack | Combination knife |
US3025598A (en) * | 1958-10-13 | 1962-03-20 | Gillette Co | Knife |
US3448518A (en) * | 1967-07-27 | 1969-06-10 | Harry Sklar | Knife |
US3708881A (en) * | 1971-03-22 | 1973-01-09 | R Bennett | Multi position adjustable roofing knife |
US3765089A (en) * | 1971-06-16 | 1973-10-16 | Nippon Tenshashi Kk | Knife with adjustable blade |
Cited By (94)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4646440A (en) * | 1984-05-31 | 1987-03-03 | Decker John R | Replaceable blade knife |
US4735202A (en) * | 1986-10-06 | 1988-04-05 | Alcon Laboratories, Inc. | Microsurgical knife with locking blade guard |
US4922614A (en) * | 1987-04-30 | 1990-05-08 | Kai Cutlery Center Co., Ltd. | Cutter |
DE3722899A1 (en) * | 1987-07-08 | 1989-01-19 | Peters Tim | Scalpel |
GB2227412A (en) * | 1989-01-06 | 1990-08-01 | Yin Chu Chien | Disposable explorer with frangible handle |
US5071426A (en) * | 1989-04-06 | 1991-12-10 | Stuart Dolgin | Surgical scalpel with retractable blade guard |
US5139507A (en) * | 1989-04-06 | 1992-08-18 | Stuart Dolgin | Surgical scalpel with retractable blade guard |
US4985034A (en) * | 1989-06-01 | 1991-01-15 | Board Of Regents, The University Of Texas System | Safety surgical blade, handle and shield |
US5085663A (en) * | 1989-12-27 | 1992-02-04 | Bernard Tarr | Surgical knife with angular cut control and method of using the same |
US5254128A (en) * | 1990-10-11 | 1993-10-19 | Micro Engineering, Inc. | Surgical knife with attached, movable blade protector |
WO1992015254A1 (en) * | 1991-02-27 | 1992-09-17 | Taillandier Gerard | Incision instrument of the scalpel type with blade protection means |
FR2673099A1 (en) * | 1991-02-27 | 1992-08-28 | Taillandier Gerard | BISTOURI-TYPE INCISION INSTRUMENT COMPRISING A BLADE PROTECTION MEANS. |
WO1993011916A1 (en) * | 1991-12-18 | 1993-06-24 | American Safety Razor Company | Disposable surgical scalpel with safety guard |
US5417704A (en) * | 1991-12-18 | 1995-05-23 | American Safety Razor Company | Disposable surgical scalpel with safety guard |
US5299357A (en) * | 1991-12-18 | 1994-04-05 | American Safety Razor Company | Disposable surgical scalpel with safety guard |
US5309641A (en) * | 1991-12-18 | 1994-05-10 | American Safety Razor Company | Disposable surgical scalpel with safety guard |
EP0555196A1 (en) * | 1992-01-24 | 1993-08-11 | Michael R. Abidin | Surgical scalpel with retractable guard |
US5496340A (en) * | 1992-01-24 | 1996-03-05 | Leonard Bloom | Combination guarded surgical scalpel and blade stripper |
US5411512A (en) * | 1992-01-24 | 1995-05-02 | Leonard Bloom | Guarded surgical scalpel |
US5207696A (en) * | 1992-04-30 | 1993-05-04 | Medical Sterile Products, Inc. | Surgical scalpel |
US5201748A (en) * | 1992-06-01 | 1993-04-13 | Newman Philip H | Retractable-bladed surgical scalpel |
US5330494A (en) * | 1993-01-22 | 1994-07-19 | Cornelis A. van der Westhuizen | Knife |
US5527329A (en) * | 1993-12-08 | 1996-06-18 | Devon Industries, Inc. | Surgical scalpel |
USRE42507E1 (en) | 1993-12-08 | 2011-06-28 | Aspen Surgical Products, Inc. | Surgical scalpel |
US5938675A (en) * | 1993-12-08 | 1999-08-17 | Beckton, Dickinson And Company | Surgical scalpel |
US5431672A (en) * | 1994-05-09 | 1995-07-11 | Becton, Dickinson And Company | Surgical scalpel with retractable blade |
US5403337A (en) * | 1994-07-05 | 1995-04-04 | Platts; David | Retractable-bladed surgical scalpel |
US5827309A (en) * | 1994-10-25 | 1998-10-27 | Becton, Dickinson And Company | Guarded surgical scalpel with scalpel blade remover |
US5752968A (en) * | 1994-10-25 | 1998-05-19 | Becton, Dickinson And Company | Guarded surgical scalpel with scalpel blade remover |
US5792162A (en) * | 1994-10-25 | 1998-08-11 | Becton, Dickinson And Company | Guarded surgical scalpel with scalpel blade remover |
US5620454A (en) * | 1994-10-25 | 1997-04-15 | Becton, Dickinson And Company | Guarded surgical scalpel |
US5683407A (en) * | 1995-10-19 | 1997-11-04 | Becton, Dickinson And Company | Cleanable guarded surgical scalpel with scalpel blade remover |
US6022364A (en) * | 1995-10-24 | 2000-02-08 | Flumene; Antonio Giovanni | Disposable surgical safety scalpel |
WO1997029891A1 (en) * | 1996-02-16 | 1997-08-21 | Noble House Group Pty. Ltd. | Cutter assembly |
US6626925B2 (en) | 2001-03-29 | 2003-09-30 | Becton Dickinson And Company | Shielded surgical scalpel |
US6757977B2 (en) * | 2001-11-20 | 2004-07-06 | Jai Surgicals Limited | Disposable surgical safety scalpel |
US6884240B1 (en) | 2001-12-07 | 2005-04-26 | Ronald Dykes | Protection system for surgical instruments |
US20050119680A1 (en) * | 2001-12-07 | 2005-06-02 | Diamatrix Limited, Inc. | Surgical device with a moveable instrument protector |
AU2003258377B2 (en) * | 2002-09-20 | 2006-12-21 | Southmedic Incorporated | Surgical scalpel with retractable guard |
US20060100650A1 (en) * | 2002-09-20 | 2006-05-11 | Kiehne Bruce L | Surgical scalpel with retractable guard |
US7857824B2 (en) | 2002-09-20 | 2010-12-28 | Southmedic Inc. | Surgical scalpel with retractable guard |
JP2005538781A (en) * | 2002-09-20 | 2005-12-22 | オキュペイショナル・アンド・メディカル・イノベイションズ・リミテッド | Surgical scalpel with retractable guard |
WO2004026151A1 (en) * | 2002-09-20 | 2004-04-01 | Occupational & Medical Innovations Ltd | Surgical scalpel with retractable guard |
US10258367B2 (en) | 2003-04-22 | 2019-04-16 | Beaver-Visitec International (Us), Inc. | Surgical knife safety handle |
US20050015104A1 (en) * | 2003-04-22 | 2005-01-20 | Morawski Michael J. | Surgical knife safety handle |
US7022128B2 (en) | 2003-04-22 | 2006-04-04 | Becton, Dickinson And Company | Surgical knife safety handle |
US20040215174A1 (en) * | 2003-04-22 | 2004-10-28 | Morawski Michael J. | Surgical knife safety handle |
US7905894B2 (en) | 2003-04-22 | 2011-03-15 | Beaver-Visitec International (Us), Inc. | Surgical knife safety handle |
US10271872B2 (en) | 2003-04-22 | 2019-04-30 | Beaver-Visitec International (Us), Inc. | Surgical knife safety handle |
US7901422B2 (en) | 2003-04-22 | 2011-03-08 | Beaver-Visitec International (Us), Inc. | Surgical knife safety handle |
US20080058843A1 (en) * | 2003-04-22 | 2008-03-06 | Morawski Michael J | Surgical knife safety handle |
US7387637B2 (en) | 2003-04-22 | 2008-06-17 | Becton, Dickinson And Company | Surgical knife safety handle |
USD685092S1 (en) | 2003-04-22 | 2013-06-25 | Beaver-Visitec International (Us), Inc. | Surgical knife safety handle |
USD685091S1 (en) | 2003-04-22 | 2013-06-25 | Beaver-Vistec International (US), Inc. | Surgical knife safety handle guard |
US7172611B2 (en) | 2004-03-22 | 2007-02-06 | Becton, Dickinson And Company | Surgical scalpel assembly |
US20050228420A1 (en) * | 2004-03-22 | 2005-10-13 | Becton, Dickinson And Company | Surgical scalpel assembly |
US7308896B2 (en) * | 2004-06-22 | 2007-12-18 | Emergency Medical Devices, Inc. | Combination tracheal hook and scalpel device |
US20050279363A1 (en) * | 2004-06-22 | 2005-12-22 | Rafael Cruz | Combination tracheal hook and scalpel device |
US20080051813A1 (en) * | 2004-09-13 | 2008-02-28 | University Of Massachusetts | Adapter Sleeve |
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US20060085019A1 (en) * | 2004-10-20 | 2006-04-20 | Becton, Dickinson And Company | Surgical knife safety handle having user operable lock |
US20100228274A1 (en) * | 2007-04-26 | 2010-09-09 | Poly Medicure Limited | Surgical safety scalpel |
WO2008132762A1 (en) * | 2007-04-26 | 2008-11-06 | Poly Medicure Limited | A surgical safety scalpel |
US8959778B2 (en) * | 2007-04-26 | 2015-02-24 | Poly Medicure Limited | Surgical safety scalpel |
US9044265B2 (en) | 2008-02-07 | 2015-06-02 | Beaver-Visitec International (Us), Inc. | Retractable safety knife |
US8464430B2 (en) | 2008-02-07 | 2013-06-18 | Beaver-Visitec International (Us), Inc. | Retractable safety knife |
WO2009146149A3 (en) * | 2008-04-04 | 2010-01-21 | Tactical Medical Solutions, Inc. | Combination tracheal hook and surgical blade |
US20100089405A1 (en) * | 2008-04-04 | 2010-04-15 | Tactical Medical Solutions, Inc. | Combination tracheal hook and surgical blade |
US8992554B2 (en) | 2008-11-20 | 2015-03-31 | Alcon Research, Ltd. | Guarded surgical knife handle |
US20100125293A1 (en) * | 2008-11-20 | 2010-05-20 | Gregory Allen Auchter | Guarded surgical knife handle |
US20100125290A1 (en) * | 2008-11-20 | 2010-05-20 | Gregory Allen Auchter | Guarded surgical knife handle |
US8764781B2 (en) | 2008-11-20 | 2014-07-01 | Alcon Research, Ltd. | Guarded surgical knife handle |
US8256330B2 (en) | 2008-11-20 | 2012-09-04 | Alcon Research, Ltd. | Guarded surgical knife handle |
US8256331B2 (en) | 2008-11-20 | 2012-09-04 | Alcon Research, Ltd. | Guarded surgical knife handle |
US8511205B2 (en) * | 2008-12-01 | 2013-08-20 | Dong Yool Lee | Opener |
US20110259154A1 (en) * | 2008-12-01 | 2011-10-27 | Dong Yool Lee | Opener |
US8181352B1 (en) * | 2008-12-03 | 2012-05-22 | Shackelford Sr Howard L | Scalpel with removable blade assembly |
US20120215241A1 (en) * | 2010-04-09 | 2012-08-23 | Oasis Medical, Inc. | Micro surgical knife with safety feature |
US8875405B2 (en) * | 2010-04-09 | 2014-11-04 | Oasis Medical, Inc. | Micro surgical knife with safety feature |
US20120226297A1 (en) * | 2011-03-04 | 2012-09-06 | Vascular Device Partners Llc | Hand-held vein removal device |
US8834500B2 (en) * | 2011-03-04 | 2014-09-16 | Vascular Solutions, Inc. | Hand-held vein removal device |
US20150119913A1 (en) * | 2012-04-26 | 2015-04-30 | Scalpel Innovation, Inc. | Safety scalpel |
WO2013163708A1 (en) * | 2012-05-04 | 2013-11-07 | Pacheco De Souza Fabio Andre | Micro-incision instrument |
US9839442B2 (en) * | 2012-09-05 | 2017-12-12 | Sterilance Medical (Suzhou) Inc. | Safety scalpel |
US20150182247A1 (en) * | 2012-09-05 | 2015-07-02 | Sterilance Medical (Suzhou) Inc. | Kind of safety scalpel |
US10251720B1 (en) * | 2013-11-13 | 2019-04-09 | Nano 2.0 Business Press, Llc | Surgical scalpel handle assembly system and method for requiring a verification process |
US9622772B2 (en) | 2013-11-13 | 2017-04-18 | Steven M Hacker | Surgical scalpel handle assembly system and method for requiring a verification process performed prior to and during surgery using actuators to unlock and engage blade holder in ready for cutting position |
US10123815B2 (en) | 2015-02-13 | 2018-11-13 | Precision Engineered Products, Llc | Surgical knife |
US11000309B2 (en) * | 2018-05-31 | 2021-05-11 | Medi-Safe Surgicals (Pty) Ltd | Safety scalpel |
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