US20170265882A1 - Safety scalpel handle - Google Patents
Safety scalpel handle Download PDFInfo
- Publication number
- US20170265882A1 US20170265882A1 US15/463,036 US201715463036A US2017265882A1 US 20170265882 A1 US20170265882 A1 US 20170265882A1 US 201715463036 A US201715463036 A US 201715463036A US 2017265882 A1 US2017265882 A1 US 2017265882A1
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- United States
- Prior art keywords
- shield
- channel
- removal
- blade holder
- scalpel handle
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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
-
- 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
- A61B17/3217—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
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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
Description
- This application claims the benefit of U.S. Provisional Application No. 62/310,986 filed on Mar. 21, 2016, entitled, “SAFETY SCALPEL HANDLE,” the entire contents of which are incorporated herein by reference.
- The present disclosure relates generally to a scalpel handle. In particular, the scalpel handle can retain a scalpel blade in an assembly that includes a safety sheath and a release mechanism to allow for removal of the blade.
- Accidental cuts or punctures may occur by way of sharp instruments, either during use, during transfer from one person to another, or from inadvertent misplacement thereof in certain locations. Such injuries are particularly impactful in the medical arena, as diseases can be spread through accidental contact with “sharps,” including scalpel blades or the like. In particular, scalpels may include a handle that can be assembled with a disposable blade. Such handles may also be disposable or may be reusable (such as by being made of a material that can be sterilized using an autoclave of the like). Further, many such handles may not include any protection from contact with the blade when being assembled thereto and, further, may present additional opportunity for injury during removal of a to-be-disposed blade prior to reuse or disposal of the handle.
- Accordingly, further advances in protection from injury due to inadvertent contact with scalpel blades, including during removal, are desired.
- According to one aspect of the present disclosure, a scalpel handle includes a body having an outer portion defining a first end and at least a portion of a first channel extending longitudinally along a first side of the body portion and open on the first end. The body further has an insert received within the cavity of the outer portion and defining a blade holder disposed at a first end thereof and extending outwardly away from the first end of the outer portion. The scalpel handle further includes a shield coupled with the body and slideable between a retracted position and a removal position with an intermediate extended position therebetween. The shield has a first removal flange extending within an interior of the shield and being slideably disposed within the first channel to pass the first end of the outer portion during movement of the shield from the extended position to the removal position.
- According to another aspect of the present disclosure, a scalpel handle includes an outer body defining a first end and a cavity therein and an insert defining a blade holder disposed at a first end thereof and positionable within the cavity of the outer body with the blade holder extending outwardly away from the first end of the outer portion. A shield is coupled with the body and positionable around the blade holder, and a removal wedge fixed with respect to the shield and disposed in a substantially fixed lateral position at least partially aligned with a portion of the blade holder.
- According to another aspect of the present disclosure, a scalpel handle includes a body defining a channel extending in a longitudinal direction along a side thereof and having a shield portion disposed at a first end thereof that at least partially encloses the channel. A removal ramp is defined along a portion of the channel adjacent the shield. The scalpel handle further includes an insert slideably disposed within the channel between an fully-extended position and a removal position with an intermediate extended position and a retracted position therebetween. The insert has a blade holder defined on a first end thereof that passes the first end of the body during movement of the insert from the intermediate extended position to the retracted position and passes the removal ramp during movement of the insert into the removal position.
- These and other features, advantages, and objects of the present device will be further understood and appreciated by those skilled in the art upon studying the following specification, claims, and appended drawings.
- In the drawings:
-
FIG. 1 is a front perspective view of a scalpel handle with a shield thereof in a retracted position and assembled with a blade; -
FIG. 2 is a rear perspective view of the scalpel handle assembly ofFIG. 1 ; -
FIG. 3 is a front perspective view of a body of the scalpel handle assembly ofFIG. 1 ; -
FIG. 4 is a perspective detail view of a locking mechanism of the scalpel handle ofFIG. 1 ; -
FIG. 5 is a perspective detail view of the locking mechanism ofFIG. 4 in a depressed position; -
FIG. 6 is a rear perspective view of the scalpel handle assembly ofFIG. 1 during movement of the shield into an extended position; -
FIG. 7 is a rear perspective view of the scalpel handle assembly ofFIG. 1 with the shield in the extended position; -
FIG. 8 is a front perspective detail view of the scalpel handle assembly ofFIG. 7 ; -
FIG. 9 is a front perspective detail view of the scalpel handle assembly ofFIG. 1 with the shield moved into a blade removal position; -
FIGS. 10A-10C are sequential cross-sectional views of the scalpel handle assembly during stages of movement of the shield into the removal position; -
FIG. 11 is a detail view of a portion of the scalpel handle assembly ofFIG. 1 ; -
FIG. 12 is an exploded view showing an assembly of the shield; -
FIG. 13 is a rear perspective view of an alternative scalpel handle having a moveable insert in an extended position with respect to a body with an integrated shield, the handle assembled with a blade; -
FIG. 14 is a rear perspective view of the alternative scalpel handle assembly ofFIG. 13 with the moveable insert thereof in a retracted position with respect to the body; -
FIG. 15 is a bottom-rear perspective detail view of the alternative scalpel handle assembly ofFIG. 13 with the moveable insert thereof moved toward a blade removal position with respect to the body; and -
FIG. 16 is a rear perspective view of the alternative scalpel handle assembly ofFIG. 13 with the moveable insert thereof in the blade removal position with respect to the body. - For purposes of description herein the terms “upper,” “lower,” “right,” “left,” “rear,” “front,” “vertical,” “horizontal,” and derivatives thereof shall relate to the device as oriented in
FIG. 1 . However, it is to be understood that the device may assume various alternative orientations and step sequences, except where expressly specified to the contrary. It is also to be understood that the specific devices and processes illustrated in the attached drawings, and described in the following specification are simply exemplary embodiments of the inventive concepts defined in the appended claims. Hence, specific dimensions and other physical characteristics relating to the embodiments disclosed herein are not to be considered as limiting, unless the claims expressly state otherwise. - Referring to the embodiment illustrated in
FIG. 1 ,reference numeral 10 generally designates a scalpel handle assembly, which may simply be referred to as a “handle.” Thescalpel handle 10 includes abody 12 defining at least onechannel longitudinal direction 76 along a side thereof and ablade holder 44 disposed at afirst end 20 thereof and ashield 30 coupled with thebody 12. Theshield 30 is slideable along thebody 12 between a retracted position and a removal position with an intermediate extended position therebetween. Theshield 30 defines aremoval flange shield 30 and slideably disposed within thechannel first end 20 of thebody 12 during movement of theshield 30 from the extended position to the removal position. - As shown in
FIGS. 1 and 2 , thehandle 10 according to the embodiment ofFIGS. 1-12 may include an insert 22 as a portion thereof. The insert 22 includesblade holder 44 on an end thereof and extending outward beyondfirst end 20 ofbody 12 to retain ablade 42 thereon that may be thereby removeably coupled withhandle 10. The insert 22 can be coupled with thebody 12 such as by being retained within acavity 24 having anopen side 26 along a portion ofbody 12. Insert 22 can be retained withincavity 24 by a plurality of retention tabs 28 (FIG. 3 ) and/or can be secured in place using adhesives or the like. In an example, ahandle 10 according to such a construction can be adisposable handle 10, whereinbody 12 comprises a plastic material or the like that, while not amenable to common sterilization processes, can be manufactured at a cost that generally permits a one-time (or single procedure) use. The use of insert 22 withinbody 12 can provide a greater weight forhandle 10, which some may find to be more comfortable or precise feel. Further, the incorporation of theblade holder 44 as an integral portion of insert 22 can provide a more rigid coupling with and retention ofblade 42 onhandle 10. As shown inFIG. 3 , insert 22 defines a plurality ofchannels removal flanges removal flanges handle 10 along withshield 30, without interference therebetween, as discussed further below. - As shown in
FIGS. 3-8 ,body 12 ofhandle 10 includestracks 57 that have first 54 and second 56 locking channels, with bothlocking channels track 57 having elevated ramps 58 adjacent tolocking channels Track 57 andlocking channels tabs 60 of alocking mechanism 62 onshield 30. When theshield 30 is directed towards either thefirst locking channel 54 or thesecond locking channel 56,tabs 60 ride over ramps 58, thereby causing inward flexing oflocking mechanism 62 by bending offlexible portion 66 thereof (locking mechanism 62 being configured as a cantilevered section integral with shield 30) untiltabs 60 snap into either first locking 54 orsecond locking channel 56, causing an audible signal and a tactual feel indicating that theshield 30 is positively locked in either the retracted position (whenlocking mechanism 62 is engaged with second locking channel 56) or the extended position (whenlocking mechanism 62 is engaged with first locking channel 54). It is noted that a set oflocking channels track 57 on atop surface 68 ofbody 12, and that a corresponding (or substantially identical) set of locking channels connected by a corresponding (or substantially identical) track can be present onbottom surface 70 ofbody 12 as well. Whenshield 30 is locked in either the extended position, as shown inFIG. 8 , or the retracted position, as shown inFIG. 1 , thelocking mechanism 60 may be released bydepressing button 64 inward in direction P, shown inFIG. 5 , and beginning movement ofshield 30 out of such position (such as indirection 76, shown inFIG. 6 ). Thelocking mechanism 62 is released whentabs 60 travel beyond therespective locking channels shield 30 to be moved either forward or backward, as shown, for example inFIG. 5 , which shows inward movement ofbutton 64 in direction P to allowtab 60 to move out of the lockingchannel 56 associated with the retracted position (FIG. 1 ). -
Handle 10 is configured such that theblade 42 can be coupled with theblade tang 72 ofblade holder 44 when theshield 30 is in the retracted position. Such coupling can be done according to generally standard blade loading technique and can include assembly of a slot 45 withinblade 42 into a mounting groove 73 (FIG. 9 ) withinblade tang 72. As shown inFIG. 3 ,blade holder 44 ofhandle 10 is exposed whenshield 30 is in the retracted position such thatblade 42 can be assembled on thehandle 10 whenshield 30 is retracted. -
Handle 10 includes features arranged to facilitate an “automatic” blade removal.Handle 10 is further configured such that thisblade 42 removal is only achieved when theshield 30 is moved forward from the extended position (FIG. 8 ) toward the removal position shown inFIG. 9 . This is achieved whenhandle 10 is initially in the extended position (FIG. 8 ) withtab 60 engaged withfirst locking channel 54 by pressing thebutton 64 of lockingmechanism 62 inward (generally in direction P, as discussed above) and pushing theshield 30 forward over anadditional ramp 74 and into anextension portion 78 of track 57 (of which similar portions may be included in a similar track onbottom side 70 of body 12). Such movement results in the removal flanges 36 a, 36 b that extend inward withinshield 30 to push theblade 42 indirection 76 to completely remove theblade 42 fromblade holder 44 of thehandle 10, as shown inFIG. 9 . - As discussed above,
removal flanges shield 30 and are recessed with respect tobody 12 by extending into respective channels 32 within handle 10 (such as within insert 22 in the present embodiment). Channels 32 extend longitudinally alongbody 12, again, such that removal flanges 36 a, 36 b, while recessed withinbody 12, can move freely indirection 76 alongbody 12 with movement ofshield 30, as discussed above. The recessed arrangement ofremoval flanges edge 84 ofblade 42 to align with a portion of theblade holder 44 and/or with mountinggroove 73. As illustrated inFIG. 11 , this positioning allows for at least one ofremoval flanges end 84 ofblade 42 whenshield 30 is moved out of the extended position and indirection 76 toward the removal position. As further shown inFIGS. 10A, 10B , ad 10C, this arrangement allows for engagement of at least one of the removal flanges 36 a, 36 b (depending, for example, on the particular geometry blade 42) to contact trailingedge 84 ofblade 42 and to implement removal ofblade 42 fromblade holder 44. - In particular, each removal flange 36 a,36 b, as depicted in
FIGS. 10A, 10B, and 10C , is inclined at least along a portion thereof to define a removal wedge thereon that makes initial contact with trailingedge 84 ofblade 42. By this configuration, the initial continued movement ofshield 30 indirection 76 just after contact of at least one of the removal flanges 36 a,36 b with trailingedge 84 ofblade 42 can move the trailingedge 84 outward with respect totang 72, as shown inFIG. 10B . This can begin detachment ofblade 42 fromblade holder 44 such that continued movement ofshield 30 indirection 76, as shown inFIG. 10C can cause trailingedge 84 ofblade 42 to engage with a generally flat (i.e. perpendicular to direction 76) portion ofremoval flanges removal flanges blade 42 indirection 76 with movement ofshield 30. When shield is moved fully into the removal position (FIG. 9 ),blade 42 is disengaged fromblade holder 44 by sliding of slot 45 out of mountingslot 73, allowingblade 42 to fall out the open end ofshield 30. - As shown in
FIG. 8 ,secondary portion 78 oftrack 57 may be located inward of the adjacent portion oftrack 57 opposite first lockingchannel 54 therefrom. This can be such thatshield 30 is prevented from being moved into the removal position (FIG. 9 ) except by depressing ofbutton 64 beyond a position required for movement ofshield 30 toward the retracted position. Such positioning ofsecondary portion 78 may also provide a positive stop forshield 30 when moved into the extended position, preventingpremature blade 42 removal during normal use ofhandle 10.Secondary portion 78 is configured to require a predetermined amount of additional travel horizontally indirection 76 beyond the extended position to achieve blade removal. Further, thesecondary portion 78 oftrack 57 is sloped back outward such that the outward biasing of lockingmechanism 62causes tabs 60 to urgeshield 30 toward the removal position when engaged withsecondary portion 78. It is further shown that anend 80 oftrack 57 is defined withinsecondary portion 78. The presence ofend 80 may help ensure that theshield 30 does not accidentally become released from thebody 12 duringblade 42 removal. - After
blade 42 removal, shield 30 can be moved back to either of the extended or retracted positions. Anew blade 42 can be coupled withhandle 10, as discussed above, whileshield 30 is in the retracted position. If there is no intention to assemble anew blade 42 and ifhandle 10 is intended for single-use, it may then be disposed of. - As shown in
FIG. 1 , for example,body 12 ofhandle 10 can have an outwardly-flaredrearward end 38 oppositefirst end 20. The outwardly-flared profile thereof can be such that the outer profile thereof generally matches that ofshield 30 so that whenshield 30 is in the illustrated retracted position, a generally consistent outer profile forhandle 10 is achieved, which may provide increased comfort during use. Further, handle 10 may include ascale 40 imprinted or debossed thereon for use during a procedure or the like. Thescale 40 may be continuous between flaredportion 38 ofbody 12 andshield 30 and/or may extend along body for use whenshield 30 is in the extended position (FIG. 8 ). - As shown in
FIGS. 6 and 7 , shield 30 may include one ormore windows 82 therethrough so that ablade 42 assembled withhandle 10 can be seen therethrough whenshield 30 is in the illustrated extended position. In further examples shield 30 can additionally or alternatively be constructed of a transparent material. - In one aspect, as illustrated in
FIG. 12 ,shield 30 can be of a two-part plastic construction. In this construction,shield 30 can include amain portion 88 including the portion ofshield 30 that surroundsbody 12 and extends therefrom when in the extended position to concealblade 42. Asecondary portion 89 can include thebutton 64,tabs 60, andflexible portion 66 of thelocking mechanism 62, discussed above.Secondary portion 89 can also includeremoval flanges main portion 88, as discussed above, whensecondary portion 89 is assembled withmain portion 88. Such construction can allow for an injection molded construction that includesremoval flanges shield 30. Such material thickness may be difficult to achieve in asingle piece shield 30, particularly without complicated molds and machinery.Secondary portion 89 can be rigidly coupled withmain portion 88 such as by ultrasonic welding, laser welding, or the like, or with adhesives, for example. To aide in assembly ofmain portion 88 andsecondary portion 89,main portion 88 may include analignment tab 90 that may engage with a correspondingnotch 92 insecondary portion 89. - A further embodiment of a
handle 210 is shown inFIGS. 13-16 that may be considered reusable. As such, bothbody 212 and insert 222 may be made of metal suitable for sterilization, such as using an autoclave or the like, such as stainless steel, various aluminum alloys, or the like. The variation ofhandle 210 illustrated inFIGS. 13-16 can include anintegrated body 212 and shield 230 that are fixed together withshield 230 positionedadjacent end 220 ofbody 212. To retract blade withinshield 230, handle 210 can include amoveable insert 222 that is slideably disposed within acavity 224 in aside 226 ofbody 212.Insert 222 can be secured withincavity 224, for example, by one ormore tabs 228, as illustrated inFIG. 14 . In this variation,locking mechanism 262 can be coupled withinsert 222 to allow for selective movement ofinsert 222 among various positions provided bytrack 257, similar to those discussed above. In particular,tab 260 oflocking mechanism 262 can freely slide withintrack 257 between a lockingchannel 254 associated with an extended position, shown inFIG. 13 , and anopposite locking channel 256 associated with a retracted position, shown inFIG. 14 . It is noted that the more robust construction provided by the use of the above-mentioned metallic materials forinsert 222, includingbutton 260, and ofbody 212 may make it possible to incorporate only onetrack 257 onbody 212. Accordingly, only asingle tab 260 may be incorporated onbutton 260. - Although it may be possible to install
blade 242 onblade holder 244 wheninsert 222 is in the extended position (FIG. 13 ), to further facilitateblade 242 installation,track 257 can further include a lockingchannel 255 associated with a blade installation, or fully-extended, position in which insert 222 is moved farther forward indirection 276 such thatblade holder 244 can be accessed to installblade 242 thereon. Still further, anextension portion 280 oftrack 257 can be in communication with lockingchannel 256 such that, whenbutton 264 is depressed by an amount sufficient to movetab 260 over ramp 278 (as shown inFIG. 14 ), insert 222 can be moved rearward such that trailingend 284 ofblade 242 moves into contact withremoval ramp 236 such that continued rearward movement ofinsert 222 causesblade 242 to become dislodged fromblade holder 244. - To facilitate sterilization of
handle 210 for subsequent reuse,button 264 can be pulled outwardly wheninsert 222 is in the retracted position (i.e. whentab 260 is in locking channel 256). This allowstab 260 to move out of lockingchannel 256, thereby allowinginsert 222 to be moved further rearward (i.e. opposite direction 276) out ofchannel 224. - It will be understood by one having ordinary skill in the art that construction of the described device and other components is not limited to any specific material. Other exemplary embodiments of the device disclosed herein may be formed from a wide variety of materials, unless described otherwise herein.
- For purposes of this disclosure, the term “coupled” (in all of its forms, couple, coupling, coupled, etc.) generally means the joining of two components (electrical or mechanical) directly or indirectly to one another. Such joining may be stationary in nature or movable in nature. Such joining may be achieved with the two components (electrical or mechanical) and any additional intermediate members being integrally formed as a single unitary body with one another or with the two components. Such joining may be permanent in nature or may be removable or releasable in nature unless otherwise stated.
- It is also important to note that the construction and arrangement of the elements of the device as shown in the exemplary embodiments is illustrative only. Although only a few embodiments of the present innovations have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited. For example, elements shown as integrally formed may be constructed of multiple parts or elements shown as multiple parts may be integrally formed, the operation of the interfaces may be reversed or otherwise varied, the length or width of the structures and/or members or connector or other elements of the system may be varied, the nature or number of adjustment positions provided between the elements may be varied. It should be noted that the elements and/or assemblies of the system may be constructed from any of a wide variety of materials that provide sufficient strength or durability, in any of a wide variety of colors, textures, and combinations. Accordingly, all such modifications are intended to be included within the scope of the present innovations. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the desired and other exemplary embodiments without departing from the spirit of the present innovations.
- It will be understood that any described processes or steps within described processes may be combined with other disclosed processes or steps to form structures within the scope of the present device. The exemplary structures and processes disclosed herein are for illustrative purposes and are not to be construed as limiting.
- It is also to be understood that variations and modifications can be made on the aforementioned structures and methods without departing from the concepts of the present device, and further it is to be understood that such concepts are intended to be covered by the following claims unless these claims by their language expressly state otherwise.
- The above description is considered that of the illustrated embodiments only. Modifications of the device will occur to those skilled in the art and to those who make or use the device. Therefore, it is understood that the embodiments shown in the drawings and described above is merely for illustrative purposes and not intended to limit the scope of the device, which is defined by the following claims as interpreted according to the principles of patent law, including the Doctrine of Equivalents.
Claims (20)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US15/463,036 US20170265882A1 (en) | 2016-03-21 | 2017-03-20 | Safety scalpel handle |
US16/778,008 US11278310B2 (en) | 2016-03-21 | 2020-01-31 | Safety scalpel handle |
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US201662310986P | 2016-03-21 | 2016-03-21 | |
US15/463,036 US20170265882A1 (en) | 2016-03-21 | 2017-03-20 | Safety scalpel handle |
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US16/778,008 Division US11278310B2 (en) | 2016-03-21 | 2020-01-31 | Safety scalpel handle |
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US20170265882A1 true US20170265882A1 (en) | 2017-09-21 |
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US16/778,008 Active 2037-06-26 US11278310B2 (en) | 2016-03-21 | 2020-01-31 | Safety scalpel handle |
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US16/778,008 Active 2037-06-26 US11278310B2 (en) | 2016-03-21 | 2020-01-31 | Safety scalpel handle |
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Cited By (4)
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USD831826S1 (en) * | 2017-09-05 | 2018-10-23 | Aspen Surgical Products, Inc. | Surgical blade loader |
CN110141314A (en) * | 2017-11-27 | 2019-08-20 | 赵田田 | A kind of foldable scalpel of Pop-up |
CN112842477A (en) * | 2020-12-31 | 2021-05-28 | 宗成永 | Mammary gland hyperplasia detects resection device |
US11690668B2 (en) * | 2018-12-21 | 2023-07-04 | Avent, Inc. | Cooled radiofrequency ablation probe |
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CN108784790B (en) * | 2018-03-01 | 2020-04-07 | 中国人民解放军陆军军医大学第二附属医院 | Scalpel and device with function of collecting and separating scalpel blades |
US20230173696A1 (en) * | 2021-12-08 | 2023-06-08 | Hogue Tool & Machine, Inc. | Replaceable blade knife |
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Also Published As
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EP3222229A1 (en) | 2017-09-27 |
US20200163690A1 (en) | 2020-05-28 |
US11278310B2 (en) | 2022-03-22 |
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