WO2008007181A1 - Scalpel à lame rétractable - Google Patents
Scalpel à lame rétractable Download PDFInfo
- Publication number
- WO2008007181A1 WO2008007181A1 PCT/IB2007/001766 IB2007001766W WO2008007181A1 WO 2008007181 A1 WO2008007181 A1 WO 2008007181A1 IB 2007001766 W IB2007001766 W IB 2007001766W WO 2008007181 A1 WO2008007181 A1 WO 2008007181A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- handle
- scalpel
- slider
- cavity
- blade
- 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
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
- A61B17/00—Surgical instruments, devices or methods
- 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
- This invention relates to a scalpel having a retractable blade in which movement of the blade relative to a supporting scalpel handle between an extended operative position and a retracted inoperative position is achieved by moving a blade carrier by way of a thumb or finger operable slider attached, generally by way of a slot through the wall of the handle, to a blade carrier.
- the invention relates in particular, but not exclusively, to a disposable scalpel.
- Disposable scalpels having retractable blades have been proposed and produced in many different forms.
- the thumb operable slider projects through a sidewall of the scalpel handle, and in a second form the slider projects through a slot in one edge of the handle that can be considered to be the top edge of the scalpel handle.
- a scalpel having a handle with a longitudinally extending cavity therein, a blade carrier within the cavity and movable longitudinally relative to the handle between an operative position in which a blade carried thereby is exposed for use at an open end of the cavity and an inoperative position in which a blade carried thereby is retracted within the cavity in the handle, and a manually operable slider associated with the blade carrier and passing through a slot in a wall of the handle,
- the scalpel being characterized in that the slider is of generally channel shape in cross-section so as to have a web section and a flange section on each side thereof and wherein the web section bridges an edge of the handle (herein termed the top edge) and the flange sections are located one on each side of the top edge such that the slider is operable from the top of the scalpel handle as well as from substantially either side of the scalpel handle.
- the slot to extend along said top edge of the handle; for the slider and one or other longitudinally extending edge of the slot to be provided with co-operating tooth and notch formations that cooperate to releasably hold the blade carrier and slider assembly in
- Figure 1 is a perspective view from the top and from one side of one embodiment of scalpel having a manually operable slider according to the invention and a communicating slot extending along the top edge of the scalpel;
- Figure 2 illustrates in similar view the exposed part only of the manually operable slider for purposes of clarity
- Figure 3 is an enlarged cross-section of this embodiment of the invention taken along line III to III in Figure 1 ;
- Figure 4 is a view similar to Figure 2 but illustrating a second embodiment of the invention being a variation of the first embodiment in which the flanges of the channel shaped slider are substantially longer;
- Figure 5 is a perspective view from the side of a third embodiment of the invention in which the communicating slot extends along the one side of the scalpel;
- Figure 6 is an enlarged cross-section of the third embodiment of the invention taken along line Vl to Vl Figure 5.
- a scalpel comprises a single piece injection moulded plastics handle (1); an injection moulded blade carrier (2) slidable longitudinally in a longitudinal cavity (3) within the plastics handle; a separately injection moulded, manually operable slider (4) that combines with the blade carrier to form a blade carrier assembly in the assembled condition; and, for use, a scalpel blade (5) that is fitted to the blade carrier.
- the handle has a longitudinally extending slot (6) extending along its operatively top edge (7) from a forward end (8) of the handle towards a rear end (9) thereof and communicating with the cavity inside.
- An integral bridge (10) at the front end of the top edge forms an endless collar to an open end (11) to the cavity and provides dimensional stability to this end for firmly holding the blade carrier in its operative position.
- the scalpel generally has features described in the published United States patent application referred to above.
- the slider is of generally channel shape in cross-section with a web section (12) extending across the upper edge of the scalpel handle and a flange section (13) extending one over the adjacent part of each side of the handle.
- the outer surfaces of the web section and flanges can be provided with undulations for enhancing frictional engagement thereof by a thumb or finger of a person.
- the flanges extend only a short distance down the side surface of the handle, as shown most clearly in Figure 3, but are nevertheless engagable by a thumb or finger from either side of the scalpel or from the top. It will thus be understood that this arrangement enables the slider to be operated from either side or from the top, as may be convenient to a person holding the scalpel, and depending on the orientation in which the scalpel is held.
- the distance by which the flanges extend over the width of the side surface of the handle is variable and, accordingly, as in the case of the second embodiment of the invention it is illustrated in Figure 4, the flanges (14) could be substantially longer to extend over a greater part of the width of the side surface of the scalpel.
- the flanges (15) of the slider (16) may extend even further across the sides of the handle, and almost over the entire width of each side of the scalpel handle (17).
- This variation of slider is considered to be most appropriate in the instance in which a communicating slot (18) is provided in one side of the handle, typically approximately centrally along the width of the handle, so that a protrusion or other formation (19) formed integral with the slider can be attached by any suitable means to the internal blade carrier (20).
- the flanges (15), as in the other embodiments of the invention described above, are interconnected by a web (21) bridging one edge, herein referred to as the top edge, of the handle. Both the web and the flanges are provided with friction affording undulations, as indicated above.
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
La présente invention concerne un scalpel comprenant un manche (1, 17) pourvu d'une cavité s'étendant longitudinalement (3)dans ce dernier et d'un porte-lame (2, 21) situé dans la cavité et mobile dans le sens de la longueur par rapport au manche entre une position d'utilisation dans laquelle une lame supportée de cette manière est exposée pour être utilisée au niveau d'une extrémité ouverte (11) de la cavité et une position inopérante dans laquelle une lame supportée de la sorte est rétractée dans la cavité située dans le manche. Un élément coulissant (4, 16) actionné manuellement est associé au porte-lame par l'intermédiaire d'une fente (6, 18) formée dans une paroi du manche. L'élément coulissant présente une section ayant globalement la forme d'une rainure de manière à avoir une partie plate (12) et une partie côté (12) de chaque côté de cette dernière, ladite partie plate reliant un bord (7) du manche (appelé bord supérieur) et les parties côté situées de chaque côté du bord supérieur de sorte que l'élément coulissant puisse être actionné depuis le dessus du manche du scalpel mais aussi depuis pratiquement chaque côté du manche du scalpel.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA2006/05564 | 2006-07-06 | ||
| ZA200605564 | 2006-07-06 | ||
| US11/520,226 | 2006-09-09 | ||
| US11/520,226 US20080009890A1 (en) | 2006-07-06 | 2006-09-13 | Scalpel with retractable blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008007181A1 true WO2008007181A1 (fr) | 2008-01-17 |
Family
ID=38724508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2007/001766 Ceased WO2008007181A1 (fr) | 2006-07-06 | 2007-06-28 | Scalpel à lame rétractable |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2008007181A1 (fr) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6254621B1 (en) * | 2000-06-01 | 2001-07-03 | S & S Surgical Products, Inc. | Closed channel retractable surgical blade device and associated method |
| US20040158269A1 (en) * | 2002-11-18 | 2004-08-12 | Holman Robert Gerard | Disposable scalpel with retractable blade |
-
2007
- 2007-06-28 WO PCT/IB2007/001766 patent/WO2008007181A1/fr not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6254621B1 (en) * | 2000-06-01 | 2001-07-03 | S & S Surgical Products, Inc. | Closed channel retractable surgical blade device and associated method |
| US20040158269A1 (en) * | 2002-11-18 | 2004-08-12 | Holman Robert Gerard | Disposable scalpel with retractable blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
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| NENP | Non-entry into the national phase |
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| NENP | Non-entry into the national phase |
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| 122 | Ep: pct application non-entry in european phase |
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