Isolated tooth clamping forceps

Abstract

The utility model relates to the field of medical instruments, in particular to a pair of isolated tooth clamping forceps, which comprises two forceps bodies and a pin shaft, the middle parts of the two forceps bodies are hinged through the pin shaft, one end of each forceps body is provided with a forceps head, the other end of each forceps body is provided with a forceps handle, the forceps head is provided with an anti-skidding part, and the anti-skidding part is provided with an anti-skidding groove. A locking assembly is arranged between the two plier handles, and the two plier bodies are kept in a clamping state through the locking assembly. The utility model has the effects of reducing the dropping between the clamping forceps and the tooth neck, and solving the problem that the medical personnel feel tired when holding for a long time.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to an ex vivo tooth clamping forceps. Background Art

[0002] Tooth extraction forceps are instruments used to clamp the crown or root of a tooth and loosen and dislocate the tooth by wedging, shaking, twisting and pulling.

[0003] The beak of the currently used dental extraction forceps is made of metal. During the tooth extraction process, the front end is easy to slip when clamping the neck of the tooth, making it difficult to operate. The root cutting and back filling processes after extraction are also carried out with dental extraction forceps. During the operation, the doctor's hands must continue to hold the dental extraction forceps tightly without any relaxation. This will make the hands very tired during the more than ten minutes of operation, and there is also a risk of the forceps falling off. Utility Model Content

[0004] In order to reduce the falling off between the clamping forceps and the tooth neck and solve the problem that medical staff feel tired after holding the tooth tightly for a long time, the utility model provides an ex-vivo tooth clamping forceps.

[0005] The utility model provides an in vitro tooth clamping forceps adopting the following technical scheme:

[0006] An ex vivo tooth clamping forceps comprises two forceps bodies and a pin shaft, wherein a forceps head is provided at one end of the forceps body and a forceps handle is provided at the other end, an anti-slip portion is provided on the forceps head, a locking assembly is provided between the two forceps handles, the two forceps bodies are maintained in a clamping state by the locking assembly, and anti-slip particles are provided on the outer side of the forceps handles.

[0007] Optionally, the locking assembly includes a locking screw and a locking nut, one end of the locking screw is connected to the inner side of one of the pliers handles, the other end of the locking screw passes through the other pliers handle and is slidably connected thereto, and the locking nut is located on the outside of the two pliers handles and is threadably connected to the locking screw.

[0008] Optionally, the locking assembly comprises a left locking part and a right locking part, wherein the left locking part and the right locking part are respectively connected to the two pliers bodies, and the two pliers bodies are maintained in a clamping state by the left locking part and the right locking part;

[0009] The left locking part includes a left locking block and a left connecting part, wherein the left locking block is connected to the pliers body via the left connecting part, and the surface of the left locking block protrudes from the left connecting part; the right locking part includes a right locking block and a right connecting part, wherein the right locking block is connected to the pliers body via the right connecting part, and the surface of the right locking block protrudes from the right connecting part, and the protruding direction of the left locking block is opposite to that of the right locking block.

[0010] Optionally, a left bevel is provided on one end of the left locking block away from the left connecting portion; a right bevel is provided on the end surface of the right locking block away from the right connecting portion, and the left bevel is arranged opposite to the right bevel.

[0011] Optionally, a left locking tooth is provided on the side wall of the left locking block facing the pliers body, and a right locking tooth matching with the left locking tooth is provided on the side wall of the right locking block facing the right pliers body.

[0012] Optionally, the anti-slip part is made of rubber material, anti-slip teeth are arranged on the inner wall of the anti-slip part, an oral protection device is arranged on the outer wall of the anti-slip part, and the oral protection device passes through the pliers head and is plugged into the pliers head so that the anti-slip part is detachably connected to the pliers head.

[0013] Optionally, both of the two pliers handles are provided with an elastic component that pushes the two pliers handles to separate from each other; the elastic component includes a left spring sheet and a right spring sheet, the end of the left spring sheet is provided with a connecting portion with reduced width, and the right spring sheet is provided with a connecting groove, and the connecting portion is inserted into the connecting groove.

[0014] Optionally, the pliers head is circular and includes a first clamping portion and a second clamping portion that interlock with each other, the anti-slip portion is an anti-slip protrusion disposed on the inner side of the pliers head, a first axis section protrudes from the lower part of the front end of the first clamping portion, and a second axis section that cooperates with the first axis section protrudes from the upper part of the front end of the second clamping portion.

[0015] Optionally, the locking assembly adopts a serrated stop lock structure, including stop plates that are locked together, the two stop plates are respectively fixed on the two pliers handles, and the stop plates are provided with a plurality of stop steps arranged at intervals.

[0016] Optionally, the oral protection device includes: a rubber shell, one end of the rubber shell close to the outer wall of the pliers head is inserted into the pliers head, a rubber bracket is installed at the other end of the rubber shell, the dynamic pressure relief piece is connected to the inner wall of the rubber shell through several groups of buffer springs, and the inner wall of the dynamic pressure relief piece is symmetrically provided with guide grooves, one end of the T-shaped support rod having a T-shaped head is movably arranged in the dynamic pressure relief piece, and the T-shaped head of the T-shaped support rod is movably connected to the guide groove, the T-shaped support rod is connected to the inner wall of the dynamic pressure relief piece through a buffer spring 2, a buffer pad is fixedly provided at the end of the T-shaped support rod away from the T-shaped head, the U-shaped end of the U-shaped bracket body is fixedly connected to the inner wall of the rubber shell, and the triangular positioning block is fixedly connected to the U-shaped bracket body, a buffer groove is provided in the triangular positioning block, and a flexible ball head is movably arranged In the buffer groove, the rubber bracket is located at one end of the rubber shell and is connected to the flexible ball head through the first connecting rod, and the first connecting rod is movably connected to the rubber bracket, the fixing ring is fixedly sleeved on the outer wall of the U-shaped bracket body, two groups of guide sleeves are movably sleeved on the outer wall of the U-shaped bracket body, and the two groups of guide sleeves are symmetrically arranged on both sides of the fixing ring, one end of the rubber rod is movably connected to the guide sleeve, and the other end of the rubber rod is movably connected to the rubber bracket, buffer spring three is sleeved on the outer wall of the U-shaped bracket body, and buffer spring three is arranged between the fixing ring and the guide sleeve, an embedded airbag bracket is fixed on the rubber bracket, and two groups of guide slots are symmetrically opened in the airbag bracket, two ends of the oral protection pad are movably arranged in the two groups of guide slots respectively, and the oral protection pad is a cavity structure, and several groups of buffer springs four are arranged in the cavity.

[0017] In summary, the present invention includes at least one of the following beneficial technical effects:

[0018] 1. The anti-slip part set on the pliers head increases the friction between the tooth to be transplanted and the clamping forceps, thereby reducing the shedding of the transplanted tooth and improving the stability during the tooth transplantation process; the locking component is used to tighten the two pliers bodies so that the clamping forceps can remain in a clamped state, thereby reducing the doctor's long-term grip during use, reducing the output of doctor's hand force, and reducing fatigue.

[0019] 2. The locking nut can be used to push the two clamp handles to rotate toward each other, so that the transplanted tooth can always be clamped during the transfer process. The clamping force of the transplanted tooth can be adjusted by screwing the locking nut.

[0020] 3. During use, the left locking part is inserted between the right locking part and the pliers body, and the right locking part is inserted between the left locking part and the pliers body, through the deformation of the left connecting part and the right connecting part, so that the locking and unlocking between the two pliers bodies are more convenient, the stability is higher, and the separation between the two pliers bodies is reduced;

[0021] 4. The elastic force provided by the elastic component can separate the two pliers bodies from each other, making it more convenient to separate the two pliers bodies from each other, and making it more labor-saving to separate the two pliers bodies and the locking component, without having to do too much operation on the clamping pliers, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the in vitro tooth clamping forceps in the first embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the clamp head structure in the first embodiment of the utility model;

[0024] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0025] Figure 4 This is a schematic diagram of the overall structure of the in vitro tooth clamping forceps in the second embodiment of the utility model;

[0026] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0027] Figure 6 This is a schematic diagram of the overall structure of the in vitro tooth clamping forceps in the third embodiment of the present utility model;

[0028] Figure 7 is a front view of Embodiment 3;

[0029] Figure 8 It is a schematic diagram of the structure of an oral protection device.

[0030] Explanation of reference numerals: 1. pliers body; 11. pliers head; 1101. first clamping part; 1102. second clamping part; 1103. second shaft section; 1104. first shaft section; 1105. stop plate; 1106. stop step; 12. pliers handle; 121. anti-skid particles; 13. anti-skid part; 2. pin shaft; 3. locking assembly; 31. locking screw; 32. locking nut; 33. left locking part; 331. left locking block; 3311. left inclined surface; 3312. left clamping tooth; 332. left connecting part; 34. right locking part; 341. right locking block; 3411. right inclined surface; 3412. right clamping tooth; 342. right connecting part; 4. elastic group Part; 41, left spring piece; 411, connecting part; 42, right spring piece; 421, connecting groove; 131, oral protection device; 6, rubber shell; 7, buffer spring one; 8, dynamic pressure relief piece; 9, guide slide groove; 10, buffer spring two; 14, triangular positioning block; 15, buffer groove; 16, flexible ball head; 17, first connecting rod; 18, rubber bracket; 19, rubber rod; 20, fixing ring; 21, buffer spring three; 22, buffer pad; 23, airbag bracket; 24, guide slot; 25, cavity; 26, buffer spring four; 27, airbag; 28, T-shaped support rod; 29, U-shaped bracket body; 30, guide sleeve; 2501, oral protection pad. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-7 The utility model is described in further detail.

[0032] Embodiment 1:

[0033] The utility model embodiment discloses an in vitro tooth clamping forceps.

[0034] Reference Figure 1 and Figure 2 The ex vivo tooth clamping forceps include two forceps bodies 1 and a pin 2. The middle parts of the two forceps bodies 1 are hinged by the pin 2. A forceps head 11 is provided at one end of the forceps body 1, and a forceps handle 12 is provided at the other end. The opposite side walls of the two forceps heads 11 are in an inwardly concave arc shape, which is convenient for clamping during operation. An anti-skid portion 13 is provided on the forceps head 11, and the anti-skid portion 13 is made of rubber. The outer side of the forceps handle 12 is provided with anti-skid particles 121, which can be made of coarse sand or a material with good friction performance. The friction effect is good, which effectively avoids possible slipping or unstable grip of medical staff during long-term work.

[0035] An oral protection device 131 is provided on the outer wall of the anti-slip part 13. The oral protection device 131 passes through the pliers head 11 and is plugged into the pliers head 11, which is equivalent to a connecting through hole opened on the side of the pliers head 11. The oral protection device 131 is tightly inserted into the connecting through hole so that the anti-slip part 13 and the pliers head 11 can be detachably connected, thereby facilitating the replacement of the anti-slip part 13.

[0036] Preferably, the oral protection device 131 can also be stepped, and the diameter inside the connecting through hole is slightly smaller than the diameter exposed on the outer side of the pliers head 11. Since the outer wall of the oral protection device 131 is also made of rubber, it can be slightly deformed during the process of being squeezed into the connecting through hole. At the same time, it can effectively prevent the oral protection device 131 from shaking in the connecting through hole under normal use, and also prevent the anti-slip part 13 from falling off or shaking. On the two opposing pliers heads 11, the anti-slip part 13 and the corresponding oral protection device 131 are relatively independently arranged, and one or both of them can be replaced at will in the event of damage to the anti-slip part 13.

[0037] A locking assembly 3 is arranged between the two pliers handles 12, and the locking assembly 3 includes a locking screw 31 and a locking nut 32. One end of the locking screw 31 is connected to the inner side of one pliers handle 12, and the other end of the locking screw 31 passes through the other pliers handle 12 and is slidably connected thereto. The locking nut 32 is located on the outer sides of the two pliers handles 12 and is threadably connected to the locking screw 31.

[0038] The locking nut 32 can be used to push the two clamp handles 12 to rotate toward each other, so that the transplanted tooth can always be clamped during the transfer of the transplanted tooth. By screwing the locking nut 32, the clamping force of the transplanted tooth can be adjusted.

[0039] refer to Figure 1 and Figure 3 , the two pliers handles 12 are each provided with an elastic component 4 that pushes the two pliers handles 12 to separate from each other. The elastic component 4 includes a left spring piece 41 and a right spring piece 42, the end of the left spring piece 41 is provided with a connecting portion 411 with a reduced width, and the right spring piece 42 is provided with a connecting groove 421, and the connecting portion 411 is inserted into the connecting groove 421. A supporting step is formed between the connecting portion 411 and the end of the left spring piece 41, and the supporting step is in contact with the surface of the right spring piece 42. When the two pliers handles 12 approach each other, the left spring piece 41 and the right spring piece 42 are deformed in the direction of approaching each other and enter an energy storage state; when the two pliers handles 12 move away from each other, the left spring piece 41 and the right spring piece 42 are deformed in the direction of moving away from each other.

[0040] The elastic force provided by the elastic component 4 can separate the two pliers bodies 1 from each other, making it more convenient to separate the two pliers bodies 1 from each other, and making it more labor-saving to separate the two pliers bodies 1 and the locking component 3, without having to perform too much operation on the clamping pliers, which is more convenient.

[0041] The anti-slip part 13 provided by the clamping head 11 increases the friction between the tooth to be transplanted and the clamping forceps, thereby reducing the detachment of the transplanted tooth body and improving the stability during the tooth transplantation process; the locking component 3 is used to tighten the two forceps bodies 1, so that the clamping forceps can maintain a clamped state, thereby reducing the long-term tight grip of the doctor during use, reducing the output of the doctor's hand strength, and reducing fatigue.

[0042] Embodiment 2:

[0043] The difference between Embodiment 2 and Embodiment 1 lies in: referring to Figure 4 and Figure 5 , the locking component 3 includes a left locking part 33 and a right locking part 34. The left locking part 33 and the right locking part 34 are respectively connected to the two forceps bodies 1, and the two forceps bodies 1 maintain a clamping state through the left locking part 33 and the right locking part 34.

[0044] The left locking part 33 includes a left locking block 331 and a left connecting part 332. The left locking block 331 is connected to the forceps body 1 through the left connecting part 332, and the surface of the left locking block 331 protrudes from the left connecting part 332; the right locking part 34 includes a right locking block 341 and a right connecting part 342. The right locking block 341 is connected to the forceps body 1 through the right connecting part 342, and the surface of the right locking block 341 protrudes from the right connecting part 342. The protruding directions of the left locking block 331 and the right locking block 341 are opposite.

[0045] During use, through the deformation of the left connecting part 332 and the right connecting part 342, the left locking part 33 is clamped between the right locking part 34 and the forceps body 1, and the right locking part 34 is clamped between the left locking part 33 and the forceps body 1, making the locking and unlocking between the two forceps bodies 1 more convenient, with higher stability, and reducing the separation between the two forceps bodies 1.

[0046] One end of the left locking block 331 facing away from the left connecting part 332 is provided with a left inclined surface 3311; the end surface of the right locking block 341 facing away from the right connecting part 342 is provided with a right inclined surface 3411, and the left inclined surface 3311 and the right inclined surface 3411 are arranged opposite to each other.

[0047] On the side wall of the left locking block 331 facing the forceps body 1, a left locking tooth 3312 is provided. On the side wall of the right locking block 341 facing the right forceps body 1, a right locking tooth 3412 that cooperates with the left locking tooth 3312 is provided. The length directions of the left locking tooth 3312 and the right locking tooth 3412 are both arranged along the length direction of the forceps body 1. When the left locking block 331 and the right locking block 341 are in a locked state, the left locking tooth 3312 and the right locking tooth 3412 are engaged with each other. The connection strength between the left locking block 331 and the right locking block 341 is enhanced through the left locking tooth 3312 and the right locking tooth 3412, and the situation where the left locking block 331 and the right locking block 341 are separated from each other is reduced.

[0048] The implementation principle of the in vitro tooth clamping forceps of the utility model embodiment is as follows: during the tooth transplantation process, the donor tooth is clamped between the forceps heads 11, the left locking block 331 and the right locking block 341 on the two forceps handles 12 are close to each other, and the left locking part 33 is inserted between the right locking part 34 and the forceps body 1 through the left inclined surface 3311 and the right inclined surface 3411, and the right locking part 34 is inserted between the left locking part 33 and the forceps body 1, so that the two forceps bodies 1 are clamped together and the donor tooth is clamped.

[0049] Embodiment three:

[0050] See also Figure 6-Figure 7 , which is the third embodiment of the present invention, and is different from the first and second embodiments in that the pliers head 11 in this embodiment is round, which is convenient for opening and closing clamping. The pliers head 11 includes a first clamping portion 1101 and a second clamping portion 1102 that are interlocked. A clamping space is formed between the first clamping portion 1101 and the second clamping portion 1102. Generally, the height of a crown is about 8 mm. The formed clamping space is convenient for clamping the crown after being separated from the body. After the tooth is separated from the body, it is placed in the front circular hole. After tightening, the tooth can be wrapped and fixed. For the operations of root cutting and back filling, a first axis section 1104 protrudes from the lower part of the front end of the first clamping part 1101, a second axis section 1103 cooperating with the first axis section 1104 protrudes from the upper part of the front end of the second clamping part 1102, and the first axis section 1104 is arranged at the upper end of the first clamping part 1101. When the forceps head 11 is in a closed state, the first axis section 1104 and the second axis section 1103 correspond to each other up and down, which can achieve clamping stability and reduce the risk of the donor tooth falling off during in vitro operation.

[0051] Optionally, in this embodiment, the locking assembly 3 adopts a serrated stop lock structure, including stop plates 1105 that are locked with each other, two stop plates 1105 are respectively fixed on the two clamp handles 12, and a plurality of stop steps 1106 arranged at intervals are provided on the stop plate 1105. The stop step 1106 on one stop plate 1105 is engaged with the stop step 1106 on the other stop plate 1105 to achieve a relatively fixed buckle. Through the locking assembly 3, when clamping the donor tooth in vitro, the clamping stability can be improved, the operator's hand strength can be reduced, the operation time can be reduced, and the work efficiency can be improved. At the same time, because the stop step 1106 on the stop plate 1105 includes a plurality of stop steps 1106, different degrees of locking can be achieved, which is convenient for the operator to flexibly select the appropriate clamping tightness.

[0052] Embodiment 4:

[0053] See also Figure 8This is the fourth embodiment of the present utility model. On the basis of the first embodiment, the oral protection device 131 includes: a rubber shell 6, one end of the rubber shell 6 close to the outer wall of the pliers head 11 is inserted into the pliers head 11, and a rubber bracket 18 is installed at the other end of the rubber shell 6. The dynamic pressure relief piece 8 is connected to the inner wall of the rubber shell 6 through a plurality of groups of buffer springs 7. The inner wall of the dynamic pressure relief piece 8 is symmetrically provided with guide grooves 9. One end of the T-shaped support rod 28 with a T-shaped head is movably arranged in the dynamic pressure relief piece 8, and the T-shaped head of the T-shaped support rod 28 is movably connected to the guide groove 9. The T-shaped support rod 28 is connected to the inner wall of the dynamic pressure relief piece 8 through a buffer spring 2 10. A buffer pad 22 is fixedly provided at one end of the T-shaped support rod 28 away from the T-shaped head. The U-shaped end of the U-shaped bracket body 29 is fixedly connected to the inner wall of the rubber shell 6, and the triangular positioning block 14 is fixedly connected to the U-shaped bracket body 29. A buffer groove 15 is opened in the triangular positioning block 14, and a flexible ball head 16 is movably arranged in the buffer groove 15, the rubber bracket 18 is located at one end of the rubber housing 6 and is connected to the flexible ball head 16 through the first connecting rod 17, and the first connecting rod 17 is movably connected to the rubber bracket 18, the fixing ring 20 is fixedly sleeved on the outer wall of the U-shaped bracket body 29, and the two groups of guide sleeves 30 are movably sleeved on the outer wall of the U-shaped bracket body 29, and the two groups of guide sleeves 30 are symmetrically arranged on both sides of the fixing ring 20, one end of the rubber rod 19 is movably connected to the guide sleeve 30, and the other end of the rubber rod 19 is connected to the rubber bracket 18 is movably connected, the buffer spring three 21 is sleeved on the outer wall of the U-shaped bracket body 29, and the buffer spring three 21 is arranged between the fixed ring 20 and the guide sleeve 30, the rubber bracket 18 is fixedly embedded with the airbag bracket 23, and two groups of guide slots 24 are symmetrically opened in the airbag bracket 23, the two ends of the oral protection pad 2501 are respectively movably arranged in the two groups of guide slots 24, and the oral protection pad 2501 is a cavity 25 structure, and a plurality of groups of buffer springs four 26 are arranged in the cavity 25.

[0054] The working principle and beneficial effects of the above scheme are as follows: when performing oral treatment on a patient, an additional oral retractor is needed for assistance or the patient opens his or her mouth and keeps it open for the doctor to operate. The additional oral retractor will block the doctor's sight and hinder the doctor's operation. When there is pain, the patient's mouth will involuntarily have a tendency to close. Therefore, by additionally providing an oral protection device 131 on the forceps head 11, the patient's mouth can be protected.

[0055] When in use, the two groups of oral protection devices 131 will abut against the patient's oral cavity, thereby playing a supporting role. The patient's oral cavity cannot be guaranteed to be motionless during the treatment process. When there is pain, the patient's oral cavity will involuntarily have a tendency to close, which will apply pressure to the oral protection pad 2501 and push it to slide along the guide slot 24 of the airbag bracket 23 toward the buffer pad 22, thereby squeezing the airbag 27 to produce deformation to slow down the closing trend of the patient's oral cavity, and through the groups of buffer springs 26 and the rebound force of the airbag 27, the patient's oral cavity is supported. When the closing tendency (closing pressure) is too large, the rubber bracket 18 will be pressed as a whole to be pushed in the direction close to the dynamic pressure relief part 8. At this time, the two groups of rubber rods 19 push the two groups of guide sleeves 30 along the U-shaped bracket body 29 in the direction close to each other and compress the buffer spring three 21, thereby dispersing the pressure of oral closure. At the same time, the rubber bracket 18 pushes the flexible ball head 16 to slide and compress in the buffer groove 15 through the first connecting rod 17, thereby playing a role in auxiliary pressure dispersion. The above two buffering and pressure dispersion methods can basically offset the closing tendency of the oral cavity of most patients.

[0056] If a child is encountered, due to the lively and active nature of the child, the mouth will open and close repeatedly. When the above two buffering and dispersing pressure methods are not sufficient for support, the rubber bracket 18 is bent so that the airbag bracket 23 is in contact with the buffer pad 22. The arc-shaped buffer pad 22 can well support the airbag bracket 23 and push the T-shaped support rod 28 to slide along the guide groove 9 while the buffer spring 10 is compressed, thereby playing a supporting and buffering role. The dynamic pressure release member 8 absorbs the pressure from the horizontal and vertical directions through several groups of buffer springs 7, thereby forming a dynamic stable state, thereby playing a protective and supporting role.

[0057] Among them, the oral protection pad 2501 is of detachable design, and each new patient needs to replace a new oral protection pad 2501. The U-shaped bracket body 29 is a rigid body that can provide a skeleton support for the entire oral protection device 131. The oral protection device 131 uses materials such as rubber and buffer springs, which can provide support and protection when the patient's mouth tends to close. The dynamic pressure relief part 8 and several groups of buffer springs can release pressure during movement to prevent discomfort or injury caused by excessive pressure in the oral cavity, and the structure of the oral protection pad 2501 can provide additional comfort, making the wearer feel more comfortable.

[0058] Furthermore, when the doctor extracts the tooth, the clamping forceps tend to hit the patient's mouth. The oral protection device 131 can also alleviate the impact on the oral tissue in the above manner and reduce the risk of damage to the oral tissue.

[0059] Embodiment 5

[0060] On the basis of the third embodiment, it further comprises: a pressure sensor, the pressure sensor being arranged on the gripping surface of the clamp handle 12, for detecting the gripping force applied to the ex vivo tooth clamp when in use;

[0061] An angle sensor, which is disposed on the rotation axis between the first clamping portion 1101 and the second clamping portion 1102 and is used to detect the opening and closing angles of the first clamping portion 1101 and the second clamping portion 1102 each time they are used;

[0062] A counter, which is disposed on the clamp handle 12 and is used to detect the number of times the first clamping portion 1101 and the second clamping portion 1102 are opened and closed;

[0063] An alarm, which is arranged on the outer surface of the pliers body 1;

[0064] A controller is provided on the outer surface of the pliers body 1, and the controller is electrically connected to the pressure sensor, the angle sensor, the counter and the alarm respectively. The controller controls the alarm to work based on the pressure sensor, the angle sensor and the counter, and includes:

[0065] Step 1: The controller calculates the comprehensive loss coefficient of the inner wall of the first clamping part 1101 and the second clamping part 1102 of the clamp head 11 after multiple tooth extractions based on the pressure sensor, the angle sensor, the counter and formula (I):

[0066]

[0067] Wherein, γ is the comprehensive loss coefficient of the inner wall of the first clamping part 1101 and the second clamping part 1102 after the forceps head 11 has been used for multiple tooth extractions, N is the detection value of the counter, and F i is the holding pressure recorded by the pressure sensor during the i-th opening and closing, F max is the preset maximum pressure that human teeth can withstand, α is the detection value of the angle sensor, θ is the Poisson's ratio of the materials of the first clamping part 1101 and the second clamping part 1102, Δ is the wear rate of the contact surface between the first clamping part 1101 and the second clamping part 1102 and the tooth, sin is a sine function, e is a natural constant, and its value is 2.72; K is the minimum error coefficient of the pressure sensor and the angle sensor (the value is greater than 0 and less than 1, and is set to consider the stability factor of sensor installation);

[0068] Step 2: The controller compares the comprehensive loss coefficient of the inner walls of the first clamping part 1101 and the second clamping part 1102 calculated in step 1 with a preset comprehensive loss coefficient. When the comprehensive loss coefficient of the inner walls of the first clamping part 1101 and the second clamping part 1102 calculated in step 1 is greater than the preset comprehensive loss coefficient, the controller controls the alarm to issue an alarm prompt.

[0069] The beneficial effects of the above technical solution are as follows: on the basis of Example 3, since the pliers head 11 is a conical arc structure, the inner walls of the first clamping part 1101 and the second clamping part 1102 are provided with patterns that increase friction. After long-term use, it is easy to rub it so that the pliers head 11 cannot grip the teeth and slips off. The parameters of the in vitro tooth clamping forceps when in use are recorded by setting a pressure sensor, an angle sensor, and a counter, and the comprehensive loss coefficient of the inner walls of the first clamping part 1101 and the second clamping part 1102 is calculated by formula (1). When the comprehensive loss coefficient of the inner walls of the first clamping part 1101 and the second clamping part 1102 calculated in step 1 is greater than the preset comprehensive loss coefficient (0.85), the controller controls the alarm to issue an alarm prompt to notify medical personnel to judge the use status of the first clamping part 1101 and the second clamping part 1102 to ensure their safety, and the alarm is controlled by setting the controller.

[0070] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An in vitro tooth clamping forceps, comprising two forceps bodies (1), one end of the forceps body (1) is provided with a forceps head (11), and the other end is provided with a forceps handle (12), characterized in that: The pliers head (11) is provided with an anti-slip portion (13), a locking assembly (3) is provided between the two pliers handles (12), the two pliers bodies (1) are maintained in a clamped state by the locking assembly (3), and anti-slip particles (121) are provided on the outer side of the pliers handles (12); The two pliers handles (12) are each provided with an elastic component (4) for pushing the two pliers handles (12) to separate from each other; The elastic component (4) comprises a left elastic sheet (41) and a right elastic sheet (42); the end of the left elastic sheet (41) is provided with a connecting portion (411) with a reduced width; the right elastic sheet (42) is provided with a connecting groove (421); the connecting portion (411) is inserted into the connecting groove (421).

2. The in vitro tooth clamping forceps according to claim 1, characterized in that: The locking assembly (3) comprises a locking screw (31) and a locking nut (32), one end of the locking screw (31) is connected to the inner side of one of the pliers handles (12), the other end of the locking screw (31) passes through the other pliers handle (12) and is slidably connected thereto, and the locking nut (32) is located on the outer sides of the two pliers handles (12) and is threadedly connected to the locking screw (31).

3. The in vitro tooth clamping forceps according to claim 1, characterized in that: The locking assembly (3) comprises a left locking portion (33) and a right locking portion (34), wherein the left locking portion (33) and the right locking portion (34) are respectively connected to the two pliers bodies (1); The left locking portion (33) comprises a left locking block (331) and a left connecting portion (332), wherein the left locking block (331) is connected to the pliers body (1) via the left connecting portion (332), and the surface of the left locking block (331) is arranged to protrude from the left connecting portion (332); the right locking portion (34) comprises a right locking block (341) and a right connecting portion (342), wherein the right locking block (341) is connected to the pliers body (1) via the right connecting portion (342), and the surface of the right locking block (341) is arranged to protrude from the right connecting portion (342), and the protruding directions of the left locking block (331) and the right locking block (341) are opposite.

4. The in vitro tooth clamping forceps according to claim 3, characterized in that: A left inclined surface (3311) is provided at one end of the left locking block (331) away from the left connecting portion (332); a right inclined surface (3411) is provided at the end face of the right locking block (341) away from the right connecting portion (342), and the left inclined surface (3311) and the right inclined surface (3411) are arranged opposite to each other.

5. The in vitro tooth clamping forceps according to claim 4, characterized in that: The left locking block (331) is provided with a left locking tooth (3312) on the side wall facing the pliers body (1), and the right locking block (341) is provided with a right locking tooth (3412) matching with the left locking tooth (3312) on the side wall facing the pliers body (1).

6. The in vitro tooth clamping forceps according to claim 1, characterized in that: The anti-slip portion (13) is made of rubber material, and anti-slip teeth are arranged on the inner wall of the anti-slip portion (13). An oral protection device (131) is arranged on the outer wall of the anti-slip portion. The oral protection device (131) penetrates the pliers head (11) and is plugged into the pliers head (11), so that the anti-slip portion (13) and the pliers head (11) are detachably connected.

7. The in vitro tooth clamping forceps according to claim 1, characterized in that: The pliers head (11) is circular in shape and comprises a first clamping portion (1101) and a second clamping portion (1102) which are interlocked with each other; the anti-slip portion (13) is an anti-slip convex point arranged on the inner side of the pliers head; a first shaft section (1104) protrudes below the front end of the first clamping portion (1101); and a second shaft section (1103) which cooperates with the first shaft section (1104) is provided above the front end of the second clamping portion (1102).

8. The in vitro tooth clamping forceps according to claim 6, characterized in that: The oral protection device (131) comprises: a rubber shell (6), one end of the rubber shell (6) close to the outer wall of the pliers head (11) is inserted into the pliers head (11), the other end of the rubber shell (6) is installed with a rubber bracket (18), the dynamic pressure relief piece (8) is connected to the inner wall of the rubber shell (6) through a plurality of groups of buffer springs (7), the inner wall of the dynamic pressure relief piece (8) is symmetrically provided with guide grooves (9), a T-shaped support rod (28) has a T-shaped head and one end is movably arranged in the dynamic pressure relief piece (8), and the T-shaped head of the T-shaped support rod (28) is connected to the inner wall of the rubber shell (6). The guide slide groove (9) is movably connected, the T-shaped support rod (28) is connected to the inner wall of the dynamic pressure release member (8) through a buffer spring (10), a buffer pad (22) is fixedly provided at one end of the T-shaped support rod (28) away from the T-shaped head, the U-shaped end of the U-shaped bracket body (29) is fixedly connected to the inner wall of the rubber shell (6), and the triangular positioning block (14) is fixedly connected to the U-shaped bracket body (29), a buffer groove (15) is provided in the triangular positioning block (14), a flexible ball head (16) is movably arranged in the buffer groove (15), and the rubber bracket (18) One end of the rubber housing (6) is connected to the flexible ball head (16) through a first connecting rod (17), and the first connecting rod (17) is movably connected to the rubber bracket (18). The fixing ring (20) is fixedly sleeved on the outer wall of the U-shaped bracket body (29), and two groups of guide sleeves (30) are movably sleeved on the outer wall of the U-shaped bracket body (29), and the two groups of guide sleeves (30) are symmetrically arranged on both sides of the fixing ring (20). One end of the rubber rod (19) is movably connected to the guide sleeve (30), and the other end of the rubber rod (19) is movably connected to the rubber bracket (18). The buffer spring three (21) is sleeved on the outer wall of the U-shaped bracket body (29), and the buffer spring three (21) is arranged between the fixing ring (20) and the guide sleeve (30). The rubber bracket (18) is fixedly embedded with an airbag bracket (23), and two groups of guide slots (24) are symmetrically opened in the airbag bracket (23). The two ends of the oral protection pad (2501) are movably arranged in the two groups of guide slots (24), and the oral protection pad (2501) is a cavity (25) structure, and a plurality of groups of buffer springs four (26) are arranged in the cavity (25).

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