CN111000619B - Three-blade surgical knife for dental implant - Google Patents
Three-blade surgical knife for dental implant Download PDFInfo
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- CN111000619B CN111000619B CN201911406432.1A CN201911406432A CN111000619B CN 111000619 B CN111000619 B CN 111000619B CN 201911406432 A CN201911406432 A CN 201911406432A CN 111000619 B CN111000619 B CN 111000619B
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- 239000004053 dental implant Substances 0.000 title claims description 15
- 238000005520 cutting process Methods 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims description 21
- 239000007943 implant Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000002513 implantation Methods 0.000 abstract description 4
- 208000027418 Wounds and injury Diseases 0.000 abstract 1
- 230000006378 damage Effects 0.000 abstract 1
- 208000014674 injury Diseases 0.000 abstract 1
- 210000003128 head Anatomy 0.000 description 26
- 210000002615 epidermis Anatomy 0.000 description 10
- 210000003074 dental pulp Anatomy 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 210000003491 skin Anatomy 0.000 description 6
- 210000000214 mouth Anatomy 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 210000003254 palate Anatomy 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000000981 epithelium Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001847 jaw Anatomy 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 231100000957 no side effect Toxicity 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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
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
The utility model provides a three-blade scalpel for tooth implantation, includes handle of a knife, tool bit and handle of a knife fixed connection, the tool bit from left to right is a curved, front and back, the arc of thickness all taper about, and a blade edge is along vertical direction, and the tool bit is provided with the blade groove that runs through from front to back, and the shape of blade groove suits with the shape of tool bit, and the blade groove is used for installing double-edged blade, the front and back end of the upper portion of double-edged blade 4 be provided with No. two cutting edges and No. three cutting edges respectively, be provided with the front, well, the back mobile device of double-edged blade on the handle of a knife for before switching the double-edged blade, the back end is provided with No. two cutting edges and No. three cutting edges respectively, and the interior sword of this application is movable, can select different cutting edges in different cutting directions, makes the operation more nimble, has shortened the operation time, has alleviateed the injury to the patient.
Description
Technical Field
The application relates to the field of medical appliances, in particular to a three-blade surgical knife for dental implantation.
Background
The implant is one of the best restoration techniques for the existing tooth deficiency, and the implanted tooth is as new, firm, comfortable and beautiful, and has almost no side effect, so that the implant is called a third pair of teeth of human beings by us. Dental implants are now a very well established technique, but due to tool limitations many steps in surgery take too much time.
In the implantation of anterior teeth, it is often desirable to remove some of the pulp from the maxillary site in order to achieve aesthetic results, particularly to preserve the integrity of the maxillary epithelium during the removal of the pulp. The current method for taking tooth pulp is to open a straight mouth on the upper jaw, extend a scalpel under the epidermis of the upper jaw through the mouth, make an envelope-like incision, and separate the epidermis of the upper jaw from the tissues under the epidermis. Then, a rectangular piece of dental pulp is cut out by a surgical knife in the envelope area of the single-side opening, the cut dental pulp is placed at the site of the anterior dental implant, and then the straight opening of the jaw is sewn. Conventional scalpel blades are typically: the cutter is provided with a strip-shaped cutter body, the front part of the strip-shaped cutter body is provided with a cutter head, one side of the cutter head is provided with a cutter edge with a certain inclination angle, and the front end of the cutter head is a circular arc cutter point. Most of the existing cutting edges are arc-shaped with a certain radian, and also have linear cutting edges with a certain angle, and the cutter heads of the linear cutting edges are right-angled triangles. However, since the dental implant is used for taking out the dental pulp in the oral cavity, the conventional surgical knife cannot cut vertically, and thus it is very difficult to cut a rectangular dental pulp in the subepithelial area of the upper jaw during the dental pulp taking out process.
Disclosure of Invention
The application aims at: the three-edge surgical knife for the implant is designed to solve the problem that rectangular tooth pulp is difficult to take from the epidermis of the upper jaw in the process of implant.
The purpose of the invention is realized in the following way: the three-edge surgical knife for the dental implant comprises a knife handle 1, a knife head 3, the knife head 3 and the knife handle 1 which are fixedly connected, the three-edge surgical knife for the dental implant also comprises a hand push cover 2, a double-edge knife blade 4, a movable rod 5 and an elastic metal sheet 6, the knife head 3 is in a circular arc shape which is bent upwards from left to right, the cross section of the knife head 3 is square from left to right, the thicknesses of the front part, the rear part, the left part and the right part are gradually thinned, a first knife edge 32 is arranged in a vertical direction, the first knife edge 32 is arranged at the upper end of the right side of the knife head, the knife head 3 is provided with a front-rear penetrating knife blade groove 31, the shape of the knife blade groove 31 is matched with the shape of the knife head 3, namely, the blade groove 31 is in an arc shape with gradually thinned thickness from left to right, the blade groove 31 is used for installing the double-edged blade 4, the middle part of the blade head 3 is provided with the blade sheath 35, the inner side surface of the blade sheath 35 coincides with the inner side surface of the blade groove 31, the front side and the rear side of the top end of the blade sheath 35 are respectively provided with the round corners II 36, the blade sheath 35 is used for hiding the double-edged blade 4 when not in use, the shape of the double-edged blade 4 is adapted to the shape of the blade groove 31, namely, the blade groove 31 is in an arc shape with gradually thinned thickness from left to right, and the double-edged blade 4 can be installed in the blade groove 31 in a sliding way along the front and rear directions, the front and back ends of the right part of the double-edged blade 4 are respectively provided with a second blade 42 and a third blade 43, the front and back sides of the upper end of the right side of the double-edged blade 4 are provided with arc-shaped blade tips 44, the right part of the knife handle 1 is provided with a first groove 11, the left and right side surfaces of the first groove 11 are respectively provided with a guide groove 14 along the left and right direction, the right side of the lower part of the first groove 11 is provided with three equally-spaced positioning grooves 12 which are sequentially arranged from front to back, the right part of the knife handle 1 is also provided with an L-shaped sliding groove 13, the L-shaped horizontal edge of the sliding groove 13 penetrates right to the right end of the knife handle 1, the elastic metal sheet 6 is omega-shaped, The shape of the moving rod 5 is the same as that of the sliding groove 13, the L-shaped horizontal edge of the moving rod 5 slides in the front-back direction in the L-shaped horizontal edge of the sliding groove 13, the right end of the L-shaped horizontal edge of the moving rod 5 is fixed with the left end of the double-edge blade 4, the right side of the end part of the L-shaped vertical edge of the moving rod 5 is provided with an installing groove 52 which extends upwards, the middle part of the installing groove 52 is provided with a card groove 51 along the front-back direction, the left side surface and the right side surface of the card groove 51 are respectively provided with a notch, the width of the left side notch is larger than the width of the right side notch, the two side edges of the omega-shaped of the elastic metal sheet 6 are arranged in the card groove 51, the U-shaped bulge in the middle of the elastic metal sheet 6 is positioned in the right side notch of the installing groove 52, The hand-push cover 2 is of a cavity-shaped structure with an opening at the lower end, the right side edge of the cavity-shaped structure is provided with an outwards concave guide arc 21, the guide arc 21 is used for accommodating the upper part of a U-shaped bulge in the middle of the elastic metal sheet 6, one of the positioning grooves 12 is used for accommodating the lower part of the U-shaped bulge in the middle of the elastic metal sheet 6, the upper surface of the hand-push cover 2 is provided with an anti-slip strip 22 for increasing friction force, the left side surface and the right side surface of the hand-push cover 2 are respectively provided with two outwards convex round tables 24, the round tables 24 on the left side surface and the right side surface of the hand-push cover 2 slide in the guide grooves 14 on the left side surface and the right side surface of the groove I11, the right side surface of the hand-push cover 2 is positioned on the left side surface of the right side surface of the card slot 51, The U-shaped bulge in the middle of the elastic metal sheet 6 is pulled out leftwards from the right side notch of the mounting groove 52 and is not pulled out from the guide circular arc 21.
The round table 24 is made of plastic material or elastic metal material, so that the hand of the hand-push cover 2 is deformed during installation, and the round table 24 is installed in the guide groove 14.
The upper part of the right end of the cutter head 3 is provided with a first cutting edge 32, the other sides are provided with a first round corner 33 for preventing skin from being scratched, the double-edged cutter blade 4 is provided with a cutting edge from the middle part to the right end, and the other sides are provided with a third round corner 41 for preventing skin from being scratched.
The end of the U-shaped protrusion 62 is in arc transition.
The end of the U-shaped protrusion 62 has a circular arc transition.
Compared with the prior art, the invention has the following advantages:
1. The application has three blades, can conveniently realize vertical cutting and transverse cutting, and can conveniently cut rectangular dental pulp while guaranteeing the integrity of the upper jaw epidermis.
2. The inner blade of the application is movable, and different blades can be selected in different cutting directions, so that the operation is more flexible, the operation time is shortened, and the pain of a patient is relieved.
The inner blade of the application can be hidden in the sheath on the cutter head when not in use, thereby avoiding the upper jaw epidermis from being scratched by the unused blade when other blades are used, and ensuring safer operation.
4. The hand push cover installed on the knife handle is small and exquisite and flexible, the knife edge can be conveniently switched, and a surgical knife does not need to be pulled out when the knife edge is switched, the hand push cover can be directly pushed by the fingers of a knife holding hand to realize the switching of the knife edge, the device can be clamped in a groove set on the handle after switching, the knife edge after switching is ensured not to shake in the cutting process, and the accuracy of the device is improved. The surface of the hand-push cover device and the contact part of the hand are provided with raised anti-slip devices, so that the hand-push cover device is convenient to push.
5. The device has exquisite structure and low price of each part, and can be produced in batch to meet market demands.
Drawings
Fig. 1 is a schematic view showing the general structure of a three-blade surgical knife for dental implant.
Fig. 2 is a schematic view of a cutter head.
Fig. 3 is a partial view of the tool bit.
Fig. 4 is a schematic view of a double-edged blade.
Fig. 5 is a view of a double-edged blade in the forward direction.
Fig. 6 is a schematic structural view of the tool shank.
Fig. 7 is a partial view of a tool shank.
Fig. 8 is a partial view of a second tool shank.
Fig. 9 is a partial cross-sectional view III of the shank.
Fig. 10 is a partial cross-sectional view of a shank.
Fig. 11 is a schematic view of a resilient metal sheet.
Fig. 12 is a schematic view on a movable bar.
Fig. 13 is a partial view on the moving rod.
Fig. 14 is a schematic view of a push cover.
Fig. 15 is a partial cross-sectional view of a three-edged dental implant scalpel.
Fig. 16 is a partial sectional view of a three-edged scalpel for dental implants.
Fig. 17 is a partial cross-sectional view III of a three-edged dental implant surgical knife.
Reference numerals: 1-knife handle, 2-hand push cover, 3-knife head, 4-double-blade, 5-movable rod, 6-elastic metal sheet, 11-groove one, 12-positioning groove, 13-sliding groove, 14-guiding groove, 21-guiding circular arc, 22-antislip strip, 23-groove two, 24-round platform, 31-blade groove, 32-first blade, 33-round angle one, 35-blade sheath, 36-round angle two, 41-round angle three, 42-second blade, 43-third blade, 44-knife tip, 51-card groove, 52-mounting groove, 61-deformation plate and 62-U-shaped bulge.
Detailed Description
The three-edge surgical knife for dental implantation comprises a knife handle 1, a hand-push cover 2, a knife head 3, a double-edge blade 4, a movable rod 5 and an elastic metal sheet 6, wherein the upper, lower, left and right directions of the knife handle are the actual upper, lower, left and right directions of the knife handle in the description of the application in the figure 1 so as to describe the application.
As shown in fig. 1, a hand push cover 2 is slidably mounted on the right end of a tool holder 1, a tool bit 3 is fixedly connected to the tool holder 1, and a double-edged blade 4 is slidably mounted on the tool bit 3.
As shown in fig. 2 to 3, the cutter head 3 is in a circular arc shape with gradually thinner thickness from left to right, and the front, rear, left and right sides, a number one cutter edge 32 is along the vertical direction, the upper part of the upper right end of the cutter head 3 is provided with a cutter edge, and each of the other sides is provided with a round angle one 33 for preventing skin from being scratched. The cutter head 3 is provided with a front-rear penetrating blade groove 31, the shape of the blade groove 31 is adapted to the shape of the cutter head 3, namely, the cutter head 3 is in a circular arc shape which is bent upwards from left to right, and the thicknesses of the front, the rear, the left and the right are gradually thinned, and the blade groove 31 is used for installing the double-edge cutter blade 4. The middle part of the cutter head 3 is provided with a blade sheath 35, the inner side surface of the blade sheath 35 is overlapped with the inner side surface of the blade groove 31, the top end of the blade sheath 35 is provided with a second round corner 36, and the blade sheath 35 is used for hiding the double-edge blade 4 when not in use.
As shown in fig. 4 to 5, the double-edged blade 4 is shaped to fit the shape of the blade groove 31, i.e., is shaped like a circular arc with gradually decreasing thickness from left to right, and is slidably mounted in the blade groove 31 in the front-rear direction, and the lower side is provided with a third rounded corner 41 for preventing the skin from being scratched. The front and rear ends of the upper part of the double-edged blade 4 are respectively provided with a second blade 42 and a third blade 43, and the upper end of the double-edged blade 4 is provided with an arc-shaped cutter point 44.
As shown in fig. 6 to 10, a first groove 11 is formed in the right portion of the tool handle 1, guide grooves 14 with the same size, corresponding positions and right and left openings are formed in the left side surface and the right side surface of the first groove 11, and three positioning grooves 12 with the same shape are formed in the right side of the lower portion of the first groove 11 and are sequentially arranged from front to back. The right part of the knife handle 1 is also provided with an L-shaped sliding groove 13, and the length of the L-shaped horizontal side of the sliding groove 13 is larger than that of the vertical side. The L-shaped horizontal edge of the sliding groove 13 penetrates to the right end of the knife handle 1.
As shown in fig. 11 to 16, the elastic metal sheet 6 is in the shape of "Ω", the deformable plates 61 are provided on both sides of "Ω", the U-shaped protrusion 62 is provided in the middle, and the U-shaped protrusion 62 has an arc transition at the end. The shape of the moving rod 5 is the same as that of the sliding groove 13, and is also L-shaped with the horizontal side larger than the vertical side, and the right side of the end part of the L-shaped vertical side of the moving rod 5 is provided with an installing groove 52 which extends upwards. The middle part of the mounting groove 52 in the front-rear direction is provided with a card groove 51 along the up-down direction, the left side surface and the right side surface of the card groove 51 are respectively provided with a notch, and the left notch is larger than the right notch. The elastic metal sheet 6 is fixedly arranged in the card slot 51, and the U-shaped bulge 62 is inserted into a right notch of the card slot 51. The lower plane of the hand push cover 2 is provided with a groove II 23 which is not communicated, namely a cavity-shaped structure with an opening at the lower end, the right side of the groove is provided with an outwards concave guide arc 21, the upper surface of the hand push cover 2 is provided with an anti-slip strip 22 for increasing friction force, the left side surface and the right side surface of the hand push cover 2 are respectively provided with two round tables 24 with raised positions, the height of each round table 24 is matched with the height of the guide groove 14 on the knife handle 1, and the projection in the horizontal direction passes through the groove II 23, so that the hand can have small deformation when the hand push cover 2 is installed, and the round tables 24 can move into the groove II 23.
The components of the application are connected as follows: the left end of the tool bit 3 is fixedly connected to the right end of the tool handle 1, wherein the opening of the left end of the blade groove 31 corresponds to the opening of the L-shaped horizontal edge end of the sliding groove 13 at the right end of the tool handle 1. The moving rod 5 is slidably mounted in the sliding groove 13 along the front-rear direction, the double-edged blade 4 is slidably mounted in the blade groove 31 along the front-rear direction, and the left end of the double-edged blade 4 is fixedly connected with the right end of the moving rod 5. As shown in fig. 15, the push cover 2 is slidably mounted on the first groove 11, and the round table 24 is slidably mounted in the guide groove 14 of the handle 1 along the front-rear direction, so as to prevent the push cover 2 from falling off the scalpel. The lower plane of the hand push cover 2 is attached to the lower plane of the first groove 11, the guide arc 21 is slidably connected with the U-shaped protrusion 62, and the length of the groove inside the hand push cover 2 in the front-back direction is greater than that of the mounting groove 52 in the front-back direction. When pushing the push cover 2, the guide circular arc 21 compresses the U-shaped protrusion 62, the U-shaped protrusion 62 of the elastic metal sheet 6 makes the deformation plate 61 deform leftwards, after the U-shaped protrusion 62 of the elastic metal sheet 6 is gradually pressed out of the positioning groove 12 by the guide circular arc 21, the double-edge blade 4 becomes in a movable state, and the front or rear side surface of the groove II 23 of the push cover 2 begins to compress the front or rear side surface of the mounting groove 52 of the moving rod 5, and the double-edge blade 4 can slide in the blade groove 31 along with the moving direction of the push cover 2. When the U-shaped bulge 62 is not pushed out of the positioning groove 12, the double-edged blade 4 is in a fixed state, and cannot shake in the use process, so that the safety of the operation is ensured. As shown in fig. 17, the blade No. two edge 42 extends out of the blade sheath 35, and the blade No. three 43 is hidden inside the blade sheath 35. The first blade 32 is in the vertical direction of the blade sheath 35.
When the tooth pulp under the upper jaw epidermis is cut, the open edge of the envelope incision is cut by the common surgical knife, the implant is vertically cut by the three-edge surgical knife, namely, the U-shaped side edge of the envelope incision is cut, the hand push cover 2 is pushed, the U-shaped bulge 62 is clamped in the positioning groove 12 at the middle position, the double-edge blade 4 is hidden in the blade sheath 35, the use of the first-edge blade 32 is not affected, and meanwhile, the double-edge blade 4 is prevented from scratching the upper jaw epidermis. Since the cutter head 3 is vertical, vertical cutting can be facilitated; when transverse cutting is needed, namely the U-shaped bottom edge of the envelope-shaped incision is cut, the three-blade scalpel for dental implant is not needed to be taken out of the envelope-shaped incision, the cutter head 3 can be directly changed into the transverse direction, namely the No. two blade 42 or the No. three blade 43 is used for cutting, when the cutter head is needed to be cut from left to right, the hand-push cover 2 is pushed into the positioning groove 12 at the forefront end, the No. three blade 43 extends out of the blade sheath 35, the No. two blade 42 is automatically hidden, the extending No. three blade 43 is used for cutting, and the No. one blade 32 at the moment is positioned in the parallel direction of the skin of the palate, so that the epidermis of the palate cannot be cut, and the No. three blade 3 is used for transverse cutting. When the hand-push cover 2 is required to be cut from right to left, the hand-push cover is pushed into the positioning groove 12 at the rearmost end, the second blade 42 extends out of the blade sheath 35, the third blade 43 is automatically hidden, the extending second blade 42 is used for cutting, and the first blade 32 at the moment is positioned in the parallel direction of the skin of the upper jaw, so that the epidermis of the upper jaw cannot be cut.
Claims (4)
1. The utility model provides a three sword surgical knives for implant, includes handle of a knife (1), tool bit (3) and handle of a knife (1) fixed connection, its characterized in that: the three-edge surgical knife for the dental implant also comprises a hand push cover (2), a double-edge blade (4), a movable rod (5) and an elastic metal sheet (6), wherein the tool bit (3) is in a circular arc shape which is bent upwards from left to right, the section of the tool bit (3) is square from left to right, the thicknesses of the front part, the back part, the left part and the right part are gradually thinned, the first cutting edge (32) is arranged along the vertical direction with the cutting edge towards the right side, the first cutting edge (32) is arranged at the upper end of the right side of the tool bit, the tool bit (3) is provided with a front-back penetrating blade groove (31), The shape of blade groove (31) is in conformity with the shape of tool bit (3), namely from left to right is a circular arc that is upwards crooked, front and back, the thickness of controlling all becomes thinner gradually, blade groove (31) are used for installing twolip blade (4), tool bit (3) middle part be provided with blade sheath (35), the inboard surface of blade sheath (35) and the coincidence of blade groove (31) inboard surface, the top front and back side of blade sheath (35) all is provided with fillet two (36), blade sheath (35) are used for hiding twolip blade (4) when not using, the shape of twolip blade (4) and the shape of blade groove (31) are in conformity, namely from left to right is a upwards crooked, the angle of inclination, the thickness of the cutter handle (1) is gradually thinned in the front-back direction, the cutter handle is in the shape of an arc, the cutter handle can be slidably arranged in the cutter blade groove (31) along the front-back direction, the front end and the rear end of the right part of the double-edged cutter blade (4) are respectively provided with a second cutter blade (42) and a third cutter blade (43), the front side and the rear side of the upper end of the right side of the double-edged cutter blade (4) are provided with arc-shaped cutter tips (44), the right part of the cutter handle (1) is provided with a first groove (11), the left side surface and the right side surface of the first groove (11) are respectively provided with a guide groove (14) along the left-right direction, the right side of the lower part of the first groove (11) is provided with three equally-spaced positioning grooves (12) with the same shape, which are sequentially arranged from front to back, The right part of the knife handle (1) is also provided with an L-shaped sliding groove (13), the L-shaped horizontal edge of the sliding groove (13) rightwards penetrates through the right end of the knife handle (1), the elastic metal sheet (6) is omega-shaped, the shape of the moving rod (5) is the same as that of the sliding groove (13), the moving rod (5) slides in the sliding groove (13) along the front and back direction, the right end of the L-shaped horizontal edge of the moving rod (5) is fixed with the left end of the double-edge blade (4), the right side of the end part of the L-shaped vertical edge of the moving rod (5) is provided with an upward-extending mounting groove (52), the middle part of the mounting groove (52) is provided with a card groove (51) along the front and back direction, The left side face and the right side face of the card slot (51) are respectively provided with a notch, the width of the left side notch is larger than that of the right side notch, two side edges of the omega-shaped elastic metal sheet (6) are arranged in the card slot (51), the U-shaped bulge in the middle of the elastic metal sheet (6) is positioned in the right side notch of the mounting slot (52), the hand push cover (2) is of a cavity-shaped structure with an open lower end, the right side edge of the cavity-shaped structure is provided with an outwards concave guide arc (21), the guide arc (21) is used for accommodating the upper part of the U-shaped bulge in the middle of the elastic metal sheet (6), one of the positioning slots (12) is used for accommodating the lower part of the U-shaped bulge in the middle of the elastic metal sheet (6), The upper surface of the hand push cover (2) is provided with an anti-slip strip (22) for increasing friction force, two outwards-protruding round tables (24) are respectively arranged on the left side surface and the right side surface of the hand push cover (2), the round tables (24) on the left side surface and the right side surface of the hand push cover (2) respectively slide in the guide grooves (14) on the left side surface and the right side surface of the groove I (11), the right side surface of the cavity-shaped structure of the hand push cover (2) is positioned on the left side of the right side surface of the card groove (51) and is used for realizing that the U-shaped protrusion in the middle of the elastic metal sheet (6) is separated from the right side notch of the mounting groove (52) to the left side and is not separated from the guide circular arc (21).
2. A three-edged dental knife according to claim 1, wherein: the round table (24) is made of plastic materials and is used for realizing the deformation of hands when the hand-push cover (2) is installed, so that the round table (24) is installed in the guide groove (14).
3. The three-edge surgical knife for dental implant according to claim 2, wherein the upper first edge (32) at the right end of the upper part of the cutter head (3) is provided with a round corner one (33) for preventing skin from being scratched, the two-edge blade (4) is provided with an edge from the middle part to the right end, and the other edges are provided with round corners three (41) for preventing skin from being scratched.
4. A three-edged dental implant surgical knife according to claim 3, wherein the ends of the U-shaped projections are rounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911406432.1A CN111000619B (en) | 2019-12-31 | 2019-12-31 | Three-blade surgical knife for dental implant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911406432.1A CN111000619B (en) | 2019-12-31 | 2019-12-31 | Three-blade surgical knife for dental implant |
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| Publication Number | Publication Date |
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| CN111000619A CN111000619A (en) | 2020-04-14 |
| CN111000619B true CN111000619B (en) | 2024-07-05 |
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| CN201911406432.1A Active CN111000619B (en) | 2019-12-31 | 2019-12-31 | Three-blade surgical knife for dental implant |
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| CN112265019A (en) * | 2020-10-22 | 2021-01-26 | 王琨 | Sealing washer cutting tool |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211409262U (en) * | 2019-12-31 | 2020-09-04 | 北京大学口腔医学院 | Three-blade scalpel for dental implantation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85201954U (en) * | 1985-05-31 | 1986-03-12 | 暨南大学 | Coal shovel shaped 3-edge surgical knife for the operation on cervical vertebra |
| CN202568389U (en) * | 2012-05-25 | 2012-12-05 | 潘继军 | Double-edged scalpel for oral cavity |
| CN204394632U (en) * | 2015-01-13 | 2015-06-17 | 无锡市第三人民医院 | A kind of twolip scalpel |
| CN207768480U (en) * | 2017-06-22 | 2018-08-28 | 王任娟 | A kind of anti-scratch scalpel |
| CN108938050B (en) * | 2018-05-24 | 2019-08-30 | 山东大学 | A kind of tooth-planting operation scalpel and its operating method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211409262U (en) * | 2019-12-31 | 2020-09-04 | 北京大学口腔医学院 | Three-blade scalpel for dental implantation |
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