CN114711996A - Dental forceps for alveolar surgery and using method thereof - Google Patents
Dental forceps for alveolar surgery and using method thereof Download PDFInfo
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- CN114711996A CN114711996A CN202210457468.8A CN202210457468A CN114711996A CN 114711996 A CN114711996 A CN 114711996A CN 202210457468 A CN202210457468 A CN 202210457468A CN 114711996 A CN114711996 A CN 114711996A
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- 238000001356 surgical procedure Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000006835 compression Effects 0.000 claims abstract description 55
- 238000007906 compression Methods 0.000 claims abstract description 55
- 238000000605 extraction Methods 0.000 claims abstract description 9
- 230000009471 action Effects 0.000 claims description 11
- 230000000694 effects Effects 0.000 description 11
- 210000003128 head Anatomy 0.000 description 8
- 230000006978 adaptation Effects 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C3/00—Dental tools or instruments
- A61C3/14—Dentists' forceps or the like for extracting teeth
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Abstract
The invention discloses a pair of tooth forceps for alveolar surgery and a using method thereof, wherein the tooth forceps comprises a left handle, the left handle is rotationally connected with a right handle through a rotating shaft, the left handle and the right handle are both connected with a chuck for clamping teeth, and the chuck comprises a shell; the shell is connected with a plurality of compression columns which move in the vertical direction in a sliding manner, one ends of the compression columns penetrate out of the shell, the shell is connected with a clamping plate which moves in the horizontal direction in a sliding manner, and the clamping plate is provided with clamping holes for the compression columns to penetrate through; the shell is rotatably connected with a top plate, the bottom end of the compression leg is connected with the shell through a first spring, the left end of the top plate is provided with a movable hole for the first spring to pass through, and the first spring is connected with the movable hole; the right end of the top plate is movably connected with a conical ejector rod which is arranged on one side of the clamping plate. The invention has convenient operation, can be self-adapted to teeth with different shapes, can effectively improve the tooth extraction efficiency and convenience, and relieves the pain of patients.
Description
Technical Field
The invention relates to the technical field of alveolar surgery, in particular to a pair of dental forceps for alveolar surgery and a using method thereof.
Background
Teeth are very important organs in the oral cavity, the teeth rub against each other to chew food, the teeth are easy to damage after being used for a long time, tooth forceps are needed to be used for replacing damaged teeth, and the tooth forceps are used for tooth extraction in tooth extraction, and comprise a forceps handle and a forceps head.
When the common tooth forceps are used, the teeth to be pulled out are difficult to fix, so that the teeth to be pulled out are easy to fall off from the clamping position of the forceps head, and the pain of a patient is caused by re-clamping; and because the shape of the tooth to be extracted is not fixed, the existing tooth extracting forceps are difficult to extract the teeth with different shapes, the pain of a patient is increased by repeated extraction, and the tooth extracting efficiency is seriously restricted.
Disclosure of Invention
In order to solve the problems in the prior art, the tooth extraction forceps for the alveolar surgery and the use method thereof are provided.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides a pair of tooth forceps for alveolar surgery, which comprises a left handle, wherein the left handle is rotationally connected with a right handle through a rotating shaft, the left handle and the right handle are both connected with a chuck for clamping teeth, and the chuck comprises a shell; the shell is connected with a plurality of compression columns which move in the vertical direction in a sliding mode, one ends of the compression columns penetrate through the shell, the shell is connected with a clamping plate which moves in the horizontal direction in a sliding mode, and the clamping plate is provided with clamping holes through which the compression columns penetrate; the shell is rotatably connected with a top plate, the bottom end of the compression leg is connected with the shell through a first spring, the left end of the top plate is provided with a movable hole for the first spring to pass through, and the first spring is connected with the movable hole; the right end of the top plate is movably connected with a conical ejector rod, and the conical ejector rod is arranged on one side of the clamping plate.
Preferably, the shell is fixedly connected with a second sliding sleeve arranged in the vertical direction, the conical ejector rod is in sliding connection with the second sliding sleeve, and the contact surface of the conical ejector rod and the clamping plate is an inclined plane.
Preferably, the clamping plate is connected with the second sliding sleeve through a second spring, and the second spring is arranged above the conical ejector rod.
Preferably, the bottom end of the conical ejector rod is rotatably connected with a connecting rod, and the other end of the connecting rod is rotatably connected with the right end of the top plate.
Preferably, the number of the compression columns is four, each compression column is connected with an independent first spring, and the elastic force of the two first springs located in the middle is larger than the elastic force of the first springs located on the two sides.
Preferably, shell fixedly connected with supporting seat, the roof with the supporting seat rotates to be connected, the supporting seat sets up and is being close to toper ejector pin one side.
Preferably, the compression leg bottom fixedly connected with gag lever post, fixedly connected with fixed pin in the shell, first spring housing is established on gag lever post and fixed pin, and under the initial condition, the gag lever post lower extreme is located the activity hole.
Preferably, the upper end of the first spring is connected with the compression column, and the bottom end of the first spring is connected with the shell; under the initial state, the fixed pin sets up under the gag lever post.
Preferably, two ends of the first spring are respectively connected with the inner wall of the movable hole through pull ropes; the compression column is further connected with a check ring, and the diameter of the check ring is larger than the aperture of the clamping hole.
The invention also provides a using method of the dental forceps for alveolar surgery, and the dental forceps for alveolar surgery adopting the method comprises the following steps:
s1: the left handle and the right handle are held by hands, the clamping heads are placed on two sides of the tooth to be pulled, the left handle and the right handle are pressed, and the clamping work of the tooth is realized through the clamping heads;
s2: under the action of teeth, the teeth drive the compression columns to move towards the inside of the shell, at the moment, the first spring is compressed, the first spring drives the top plate to rotate anticlockwise, and the top plate drives the conical ejector rod to move upwards through the connecting rod;
s3: the toper ejector pin drives splint and moves left, under the effect in card hole, realizes the tight work of clamp of compression leg, and the chuck is mutually supported and is realized the centre gripping of tooth, later carries out subsequent work of extracing tooth through handheld left handle and right handle.
Compared with the prior art, the invention has the beneficial effects that:
the tooth extractor is provided with the pressing column, under the action of teeth, the corresponding pressing column can be driven to move in the vertical direction, so that the first spring is compressed, the first spring can drive the top plate to rotate, the top plate further drives the clamping plate to move in the horizontal direction through the conical ejector rod, and the clamping work of the pressing column is realized.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is an overall front view of the present invention;
FIG. 2 is a front view of the present invention as a whole (working state);
FIG. 3 is an enlarged view (rotated 90 degrees) of the structure of the portion K in FIG. 1;
fig. 4 is an enlarged view (rotated by 90 degrees) of the structure of the portion M in fig. 2.
Description of reference numerals:
1, a left handle; 2, rotating a shaft; 3, clamping a head; 4, movable holes; 5, a right handle; 6, fixing pins; 7, a first sliding sleeve; 8, a shell; 9 a top plate; 10, limiting rods; 11 a first spring; 12, pressing the column; 13, clamping plates; 14 a second spring; 15 a second sliding sleeve; 16 conical ejector rods; 17 connecting rods; 18 a support seat; 19 teeth; 20, a retainer ring; 21 clamping hole.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Referring to fig. 1-4, the present embodiment provides a pair of dental forceps for alveolar surgery, which includes a left handle 1, the left handle 1 is rotatably connected to a right handle 5 through a rotating shaft 2, the rotating shaft 2 is disposed at the middle portion of the left handle 1 and the right handle 5, and under the action of the rotating shaft 2, the left handle 1 and the right handle 5 are integrally disposed in an "X" shape.
The upper ends of the left handle 1 and the right handle 5 are connected with chucks 3 used for clamping teeth 19, the chucks 3 are symmetrically arranged, the chucks 3 comprise shells 8, and the clamping work of the teeth 19 can be realized under the action of the shells 8.
8 sliding connection of shell has the compression leg 12 of the vertical direction motion of a plurality of, and shell 8 is worn out to 12 one end of compression leg, and the setting of the 12 other ends of compression leg is in shell 8, and compression leg 12 bottom links to each other with shell 8 through first spring 11, can realize the reset work of compression leg 12 under the effect of first spring 11. A clamping plate 13 moving in the horizontal direction is connected in the shell 8 in a sliding manner, and a clamping hole 21 for the pressure column 12 to pass through is formed in the clamping plate 13.
Fixedly connected with first sliding sleeve 7 in the shell 8, splint 13 and first sliding sleeve 7 sliding connection, first sliding sleeve 7 plays spacing and the effect of direction for splint 13's motion, and under first sliding sleeve 7's effect, splint 13 can only slide along the horizontal direction.
The aperture of card hole 21 is enough big to make things convenient for the vertical direction free activity of compression leg 12, the size and the compression leg 12 looks adaptation of card hole 21 in addition, and the contact surface of card hole 21 and compression leg 12 is provided with anti-skidding rubber pad, thereby makes when splint 13 horizontal direction moves, under the effect of anti-skidding rubber pad, can realize the tight work of clamp of compression leg 12, prevents the compression leg 12 motion.
The shell 8 is rotatably connected with a top plate 9, the left end of the top plate 9 is provided with a movable hole 4 for a first spring 11 to pass through, and the first spring 11 is connected with the movable hole 4; the right end of the top plate 9 is movably connected with a conical ejector rod 16, and the conical ejector rod 16 is arranged on one side of the clamping plate 13.
8 fixedly connected with vertical direction of shell sets up second sliding sleeve 15, toper ejector pin 16 and 15 sliding connection of second sliding sleeve, and second sliding sleeve 15 plays spacing and guide's effect for the motion of toper ejector pin 16 to make toper ejector pin 16 only can slide along vertical direction. The contact surface of the conical mandril 16 and the clamping plate 13 is an inclined surface, so that when the conical mandril 16 slides vertically, the clamping plate 13 can be driven to move horizontally.
The clamp plate 13 is connected with the second sliding sleeve 15 through the second spring 14, the second spring 14 is arranged above the conical ejector rod 16, the left end of the second spring 14 is connected with the clamp plate 13, the right end of the second spring 14 is connected with the second sliding sleeve 15, the second spring 14 is used for resetting the clamp plate 13, and the compression leg 12 can conveniently penetrate through the clamp hole 21 under the action of the second spring 14.
The bottom end of the conical ejector rod 16 is rotatably connected with a connecting rod 17, and the other end of the connecting rod 17 is rotatably connected with the right end of the top plate 9, so that when the top plate 9 rotates, the connecting rod 17 can drive the conical ejector rod 16 to move in the vertical direction.
The number of the compression columns 12 is four, each compression column 12 is connected with an independent first spring 11, and the elastic force of the two first springs 11 in the middle is larger than that of the first springs 11 on the two sides. Therefore, under the action of the teeth 19, when the pressing column 12 moves downwards, the first spring 11 in the middle part generates a force to drive the top plate 9 to rotate anticlockwise.
And the acting force generated by the leftmost first spring 11 or the first springs 11 on both sides may be an acting force that hinders the top plate 9 from rotating counterclockwise (the acting force directions of the two leftmost first springs 11 and the first springs 11 on both sides are influenced by the shape of the teeth 19), so that the elastic force of the two first springs 11 located in the middle is set to be larger, and the elastic force of the first springs 11 on both sides is set to be smaller, which is convenient to implement, when the compression leg 12 adapts to the shape of the teeth 19, the top plate 9 can be smoothly driven to rotate counterclockwise, and the top plate 9 can drive the conical mandril 16 to move upward through the connecting rod 17.
In addition, as the top plate 9 can rotate, the movable hole 4 can incline to a certain degree, so that the aperture of the movable hole 4 is large enough, and the first spring 11 can move freely. Two ends of the first spring 11 are respectively connected with the inner wall of the movable hole 4 through pull ropes.
Wherein because when using, the left end pivoted angle of roof 9 is the biggest, consequently, it is longer to be located the distance of the relative motion that leftmost first spring 11 and roof 9 take place, four first springs 11 all are connected with independent stay cord, the stay cord reduces from left right side length in proper order, and the length of stay cord and roof 9 pivoted angle looks adaptation, prevent to be located left compression leg 12 and drive the too much distance of roof 9 motion through the stay cord, be convenient for realize, when compression leg 12 self-adaptation tooth 19 shape, drive roof 9 anticlockwise rotation that can be smooth, thereby make roof 9 accessible connecting rod 17 drive the 16 upward movements of toper ejector pin.
The shell 8 is fixedly connected with a supporting seat 18, the top plate 9 is rotatably connected with the supporting seat 18, and the supporting seat 18 is arranged on one side close to the conical ejector rod 16. Therefore, the left end of the top plate 9 rotates by a larger angle, and the right end of the top plate 9 rotates by a smaller angle, so that the horizontal moving distance of the clamping plate 13 is smaller than the moving length of the compression leg 12, which facilitates the horizontal moving of the clamping plate 13 by a proper distance.
12 bottom fixedly connected with gag lever post 10 of compression leg, fixedly connected with fixed pin 6 in the shell 8, first spring 11 cover is established on gag lever post 10 and fixed pin 6, and under the initial condition, gag lever post 10 lower extreme is located movable hole 4, and the aperture and the gag lever post 10 looks adaptation of movable hole 4, gag lever post 10 are cylindric.
The upper end of the first spring 11 is connected with the compression column 12, and the bottom end of the first spring 11 is connected with the shell 8; in the initial state, the fixing pin 6 is disposed just below the stopper rod 10. The fixing pin 6 and the limiting rod 10 are used for guiding the first spring 11, so that the first spring 11 is prevented from being excessively bent when the compression leg 12 moves.
The compression leg 2 is further connected with a retainer ring 20, the diameter of the retainer ring 20 is larger than the aperture of the clamping hole 21, the first spring 11 is always in a compressed state under the action of the retainer ring 20, and the retainer ring 20 can also be used for preventing the compression leg 12 from moving outwards for an excessive distance. In the initial state, the retainer ring 20 is in contact with the clamp plate 13, and the first spring 11 is in a compressed state, so that the four compression posts 12 extend out of the housing 8 by the same length.
In addition, if the clamping plate 13 is not provided, the compression leg 12 tends to move upwards under the elastic force of the first spring 11, and at this time, the user needs to pinch the left handle 1 and the right handle 5 all the time to realize the self-adaptive clamping of the compression leg 12.
And in this application, when the compression leg 12 downstream, compression leg 12 accessible roof 9 drives splint 13 horizontal direction motion, under the effect of card hole 21, realizes pressing from both sides tight of compression leg 12, consequently medical personnel need not to pinch tight left handle 1 and right handle 5 this moment, and compression leg 12 self is adaptable 19 shapes of tooth, and realizes 19 tight work of clamp of tooth, is convenient for pull out going on of tooth work.
The invention also provides a using method of the dental forceps for the alveolar surgery, and the dental forceps for the alveolar surgery comprises the following steps of:
s1: the left handle 1 and the right handle 5 are held by hands, the clamping heads 3 are placed on two sides of the tooth 19 to be pulled, the left handle 1 and the right handle 5 are pressed, and the clamping work of the tooth 19 is realized through the clamping heads 3;
s2: under the action of the teeth 19, the teeth 19 drive the compression leg 12 to move towards the shell 8, at the moment, the first spring 11 is compressed, the first spring 11 drives the top plate 9 to rotate anticlockwise, and the top plate 9 drives the conical ejector rod 16 to move upwards through the connecting rod 17;
s3: the conical ejector rod 16 drives the clamping plate 13 to move leftwards, clamping work of the compression leg 12 is achieved under the action of the clamping hole 21, the clamping heads 3 are mutually matched to achieve clamping of the teeth 19, and then subsequent tooth extraction work is conducted through holding the left handle 1 and the right handle 5 in a hand mode.
It should be noted that, under the effect of tooth 19, can drive corresponding compression leg 12 vertical direction motion, make first spring 11 compress, first spring 11 accessible stay cord drives roof 9 and rotates, and roof 9 and then drives splint 13 horizontal direction motion through toper ejector pin 16, under the effect of card hole 21 to realize the tight work of clamp of compression leg 12.
Therefore, after the pressing column 12 is adaptive to the shape of the teeth 19, the pressing column 12 can be automatically locked at the moment, the hands of a user do not need to clamp the teeth 19 forcibly, the pressing column 12 can clamp the teeth 19, the clamping operation of the teeth 19 is prevented, the situation that the chuck 3 is separated from the teeth 19 in the tooth extraction process, so that unnecessary pain is caused to a patient is avoided, and the tooth extraction efficiency is effectively improved.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A pair of tooth forceps for alveolar surgery comprises a left handle (1) and is characterized in that the left handle (1) is rotatably connected with a right handle (5) through a rotating shaft (2), the left handle (1) and the right handle (5) are both connected with a chuck (3) used for clamping teeth (19), and the chuck (3) comprises a shell (8); the shell (8) is connected with a plurality of compression columns (12) which move in the vertical direction in a sliding mode, one ends of the compression columns (12) penetrate through the shell (8), the shell (8) is connected with a clamping plate (13) which moves in the horizontal direction in a sliding mode, and the clamping plate (13) is provided with a clamping hole (21) through which the compression column (12) penetrates; the shell (8) is rotatably connected with a top plate (9), the bottom end of the pressure column (12) is connected with the shell (8) through a first spring (11), the left end of the top plate (9) is provided with a movable hole (4) for the first spring (11) to pass through, and the first spring (11) is connected with the movable hole (4); the right end of the top plate (9) is movably connected with a conical ejector rod (16), and the conical ejector rod (16) is arranged on one side of the clamping plate (13).
2. The forceps for alveolar surgery according to claim 1, wherein a second sliding sleeve (15) vertically arranged is fixedly connected to the housing (8), the tapered mandril (16) is slidably connected with the second sliding sleeve (15), and the contact surface between the tapered mandril (16) and the splint (13) is an inclined surface.
3. A forceps for alveolar surgery according to claim 2, wherein the splint (13) is connected to the second runner (15) by a second spring (14), the second spring (14) being disposed above the conical ejector pin (16).
4. The forceps for alveolar surgery according to claim 3, wherein the bottom end of the conical mandril (16) is rotatably connected with a connecting rod (17), and the other end of the connecting rod (17) is rotatably connected with the right end of the top plate (9).
5. The forceps for alveolar surgery according to claim 4, wherein the number of the pressing columns (12) is four, each pressing column (12) is connected with a separate first spring (11), and the elastic force of the two first springs (11) in the middle is greater than that of the first springs (11) on the two sides.
6. A forceps as claimed in claim 1, characterised in that the housing (8) is fixedly connected to a support (18), the head plate (9) is rotatably connected to the support (18), and the support (18) is arranged adjacent to the conical plunger (16).
7. The forceps for alveolar surgery according to claim 1, wherein a limiting rod (10) is fixedly connected to the bottom end of the compression leg (12), the fixing pin (6) is fixedly connected to the inside of the housing (8), the first spring (11) is sleeved on the limiting rod (10) and the fixing pin (6), and the lower end of the limiting rod (10) is located in the movable hole (4) in an initial state.
8. A forceps for alveolar surgery according to claim 7, wherein the first spring (11) is connected at its upper end to the pressure post (12), and the first spring (11) is connected at its lower end to the housing (8); in the initial state, the fixing pin (6) is arranged under the limiting rod (10).
9. The forceps for alveolar surgery according to claim 1, wherein both ends of the first spring (11) are connected to the inner wall of the movable hole (4) through pulling ropes; the compression column (2) is further connected with a check ring (20), and the diameter of the check ring (20) is larger than the aperture of the clamping hole (21).
10. A method of using a dental forceps for alveolar surgery, which comprises the steps of using the dental forceps for alveolar surgery according to any one of claims 5 to 9:
s1: the left handle (1) and the right handle (5) are held by hands, the chuck (3) is placed on two sides of the tooth (19) to be pulled, the left handle (1) and the right handle (5) are pressed, and the clamping work of the tooth (19) is realized through the chuck (3);
s2: under the action of the teeth (19), the teeth (19) drive the compression leg (12) to move towards the inner part of the shell (8), at the moment, the first spring (11) is compressed, the first spring (11) drives the top plate (9) to rotate anticlockwise, and the top plate (9) drives the conical ejector rod (16) to move upwards through the connecting rod (17);
s3: the conical ejector rod (16) drives the clamping plate (13) to move leftwards, clamping work of the compression leg (12) is achieved under the action of the clamping hole (21), the clamping heads (3) are mutually matched to achieve clamping of teeth (19), and then follow-up tooth extraction work is conducted through the handheld left handle (1) and the handheld right handle (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210457468.8A CN114711996B (en) | 2022-04-28 | 2022-04-28 | Dental forceps for dental socket surgery and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210457468.8A CN114711996B (en) | 2022-04-28 | 2022-04-28 | Dental forceps for dental socket surgery and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114711996A true CN114711996A (en) | 2022-07-08 |
| CN114711996B CN114711996B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210457468.8A Active CN114711996B (en) | 2022-04-28 | 2022-04-28 | Dental forceps for dental socket surgery and use method thereof |
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Citations (6)
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|---|---|---|---|---|
| KR20180128691A (en) * | 2017-05-24 | 2018-12-04 | 재단법인 한국화학융합시험연구원 | Forcep for tooth extraction |
| US20190262099A1 (en) * | 2018-02-26 | 2019-08-29 | Lori Lee Lahti | Tooth extraction dental pliers |
| CN113017866A (en) * | 2021-04-07 | 2021-06-25 | 日照伟达医疗器械有限公司 | Tooth forceps capable of limiting grip strength |
| CN213697270U (en) * | 2020-06-11 | 2021-07-16 | 昆明市延安医院 | Dental forceps with forceps mouth with adjustable angle for stomatologists |
| CN214342684U (en) * | 2021-01-25 | 2021-10-08 | 右江民族医学院附属医院 | Novel tooth forceps |
| CN215503478U (en) * | 2021-08-23 | 2022-01-14 | 万庆 | Novel dental forceps for stomatologists |
-
2022
- 2022-04-28 CN CN202210457468.8A patent/CN114711996B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180128691A (en) * | 2017-05-24 | 2018-12-04 | 재단법인 한국화학융합시험연구원 | Forcep for tooth extraction |
| US20190262099A1 (en) * | 2018-02-26 | 2019-08-29 | Lori Lee Lahti | Tooth extraction dental pliers |
| CN213697270U (en) * | 2020-06-11 | 2021-07-16 | 昆明市延安医院 | Dental forceps with forceps mouth with adjustable angle for stomatologists |
| CN214342684U (en) * | 2021-01-25 | 2021-10-08 | 右江民族医学院附属医院 | Novel tooth forceps |
| CN113017866A (en) * | 2021-04-07 | 2021-06-25 | 日照伟达医疗器械有限公司 | Tooth forceps capable of limiting grip strength |
| CN215503478U (en) * | 2021-08-23 | 2022-01-14 | 万庆 | Novel dental forceps for stomatologists |
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| CN114711996B (en) | 2024-01-26 |
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