CN215425035U - Bone fragment positioning and clamping device for maxilla for operation - Google Patents
Bone fragment positioning and clamping device for maxilla for operation Download PDFInfo
- Publication number
- CN215425035U CN215425035U CN202120679444.8U CN202120679444U CN215425035U CN 215425035 U CN215425035 U CN 215425035U CN 202120679444 U CN202120679444 U CN 202120679444U CN 215425035 U CN215425035 U CN 215425035U
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- lower clamping
- clamping ring
- rod
- ring
- clamping rod
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 46
- 239000012634 fragment Substances 0.000 title claims abstract description 39
- 210000002050 maxilla Anatomy 0.000 title claims abstract description 28
- 238000001356 surgical procedure Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 4
- 208000010392 Bone Fractures Diseases 0.000 abstract description 48
- 206010017076 Fracture Diseases 0.000 abstract description 41
- 230000000694 effects Effects 0.000 abstract description 4
- 206010023149 Jaw fracture Diseases 0.000 abstract description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 abstract description 2
- 235000011613 Pinus brutia Nutrition 0.000 abstract description 2
- 241000018646 Pinus brutia Species 0.000 abstract description 2
- 230000035876 healing Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 22
- 229910052719 titanium Inorganic materials 0.000 description 22
- 239000010936 titanium Substances 0.000 description 22
- 210000001847 jaw Anatomy 0.000 description 8
- 208000004872 Maxillary Fractures Diseases 0.000 description 5
- 210000000214 mouth Anatomy 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002792 vascular Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000002224 dissection Methods 0.000 description 2
- 230000001815 facial effect Effects 0.000 description 2
- 210000004086 maxillary sinus Anatomy 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 206010063659 Aversion Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001097 facial muscle Anatomy 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000008736 traumatic injury Effects 0.000 description 1
- 230000001720 vestibular Effects 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a bone fragment positioning and clamping device of a maxilla for operation in the technical field of jaw fracture operation, which comprises a lower clamping rod, a lower clamping rod and a lower clamping ring, wherein one end of the lower clamping rod is fixedly provided with an annular lower clamping ring, and the annular surface of the lower clamping ring is vertical to the lower clamping rod; go up the clamping bar, for a straight-bar, one end sets firmly the clamping ring on the ring form, the setting of clamping bar on the anchor ring perpendicular to of going up the clamping ring, free bone fold piece is difficult to dissect the problem of restoreing when can fundamentally solving maxilla fracture, can reach accurate in the operation, stable ideal fracture reduction effect, and this device can also avoid producing the displacement of fracture piece, difficult free bone piece pine degree slippage scheduling problem of producing, it is fixed to dissect the reduction accurately in order to reach maxilla fracture, make wounded recover as early as possible, early healing, and the patient fully heals up the back, ensure that the free bone fold piece of fracture restores to the throne stably, make the skeleton recover original appearance.
Description
Technical Field
The utility model relates to the technical field of jaw fracture surgery, in particular to a bone fragment positioning and clamping device for a maxilla for surgery.
Background
In modern traffic accident, industrial injury accident, among the accidental injury such as traumatic injury, the maxilla is because anatomical position is comparatively outstanding, easily suffer the damage and lead to the fracture, wherein the maxillary sinus is located the maxilla, lateral wall is the front exterior of maxilla before the maxillary sinus, when receiving from the place ahead, the horizontal strike of side easily leads to the face middle part to sink and sting jaw relation disorder when taking place the fracture, need accurate dissection to reset before carrying out the firm internal fixation of titanium plate, make the stability of free bone piece in the operation, can avoid the postoperative to appear the face middle part and sink and sting jaw relation condition such as disorder and take place.
The existing method for fixing the maxillary fracture adopts a method that a free bone fold piece is fixed with a titanium plate and a titanium nail in vitro and then is implanted into a body, or adopts a common vascular clamp for fixation, the angle between a free bone block and a bone defect is easy to deviate in the former fixing method, and the titanium nail is frequently rotated to adjust the free bone block in the operation, so that the titanium nail is loosened; when the vessel forceps are used for fixing the alignment titanium plate directly, the loose degree of free bone blocks is slipped due to improper angle of the vessel forceps, and accurate anatomical reduction is difficult to achieve; therefore, an instrument is urgently needed to solve the problem that the free bone blocks of the maxilla are not easy to fix in the operation.
Based on the above, the utility model designs a bone fragment positioning and clamping device of a maxilla for operation, which solves the above problems.
Disclosure of Invention
The utility model aims to provide a maxillary bone fragment positioning and clamping device for surgery, which can fundamentally solve the problem that free bone folding pieces are difficult to dissect and reset when maxillary fractures occur, can achieve accurate and stable ideal fracture resetting effect in surgery, can avoid the problems that fracture pieces are displaced and free bone pieces are not easy to loose and slide, and the like, so that accurate dissection, resetting and fixing of maxillary fractures are achieved, wounded can recover and heal early as soon as possible, and the free bone folding pieces of fractures are ensured to reset and stabilize after patients heal, so that bones restore original appearance.
The utility model is realized by the following steps: a bone fragment positioning and clamping device for a surgical maxilla, comprising:
the lower clamping rod is a straight rod, one end of the lower clamping rod is fixedly provided with a circular lower clamping ring, and the ring surface of the lower clamping ring is perpendicular to the lower clamping rod;
a limiting sliding groove is formed in the rod body of the lower clamping rod, the limiting sliding groove penetrates through two ends of the lower clamping rod, and the lower clamping ring blocks one end of the limiting sliding groove;
the upper clamping rod is a straight rod, one end of the upper clamping rod is fixedly provided with a circular upper clamping ring, and the ring surface of the upper clamping ring is perpendicular to the upper clamping rod;
at least one limiting slide block is fixedly arranged on the rod body of the upper clamping rod, and the limiting slide block is arranged in a limiting slide groove in a sliding manner without falling off;
the upper clamping rod is arranged on one side of the lower clamping rod in a sliding manner through the matching of the limiting sliding chute and the limiting sliding block, and the upper clamping ring and the lower clamping ring are overlapped up and down;
the locking hoop, the locking that goes up the clamping bar and can loosen through the locking hoop is on the clamping bar down.
Further, the lower clamping rod is fixed on the annular outer wall of the lower clamping ring, and the upper clamping rod is also fixed on the annular outer wall of the upper clamping ring.
Furthermore, anti-skid lines are distributed on the contact surface between the lower clamping rod and the upper clamping rod, and the anti-skid lines are wave-shaped anti-skid lines.
Furthermore, the locking hoop is fixedly arranged on the outer wall of the lower clamping rod, and the upper clamping rod and the locking hoop can be clamped in a separable mode.
Furthermore, the limiting slide block is of a convex columnar structure, the limiting slide block is convexly arranged on the contact surface of the upper clamping rod, which is just opposite to the lower clamping rod, and the limiting slide block is in transition fit with the limiting sliding groove.
Furthermore, the upper clamping ring and the lower clamping ring are oval annular structures with the same size, the upper clamping ring and the lower clamping ring are provided with a plurality of spare parts with different sizes and models, the maximum outer diameter range of the upper clamping ring and the lower clamping ring is between 1cm and 3cm, and the maximum diameter of inner holes of the upper clamping ring and the lower clamping ring is 0.5cm smaller than the outer diameter;
the upper clamping ring and the lower clamping ring are the same in thickness, and the thicknesses of the upper clamping ring and the lower clamping ring are not more than 0.5 cm.
The utility model has the beneficial effects that: 1. according to the jaw bone fracture fixation clamp, the upper clamping ring and the lower clamping ring can be controlled to be clamped mutually by controlling the matching of the upper clamping rod and the lower clamping rod, so that free bone fracture pieces can be clamped and positioned on the face more stably, the free bone fracture pieces can be clamped more stably, the fracture pieces are not easy to displace, the positioning is more accurate and stable, stable support can be provided for the free bone fracture pieces, and the titanium nail and the titanium plate can be convenient to lock the fracture pieces of the jaw bone in the operation;
2. the device can adapt to positioning of fracture fragments with different thicknesses and shapes, can be clamped up and down through the oval upper clamping ring and the oval lower clamping ring, can also provide suspended support for free fracture pieces through the circular ring structure, is convenient for erecting the edges of the fracture fragments, and the holes in the middle can be convenient for punching and fixing of titanium nails;
3. the device can lock the upper clamping rod and the lower clamping rod at any suitable positions through the locking hoop so as to keep the clamping stability of the device on fracture fragments, and can be clamped and held by a single hand after being clamped, so that the operation is more convenient;
4. the last clamping bar of this device with lower clamping bar and last clamping ring with lower clamping ring between mutually perpendicular, such structure could be fit for more stretching into the inside operation that performs of the tissue of maxilla, such perpendicular contained angle, the operation of maxilla can laminate more, the department of gripping that makes the hand is difficult for forming the fixed department of titanium nail and titanium plate and shelters from.
Drawings
The utility model will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a schematic view of the present invention with the upper and lower clamp rings disengaged;
FIG. 2 is a top view of the assembled upper and lower clamping bars of the present invention;
FIG. 3 is a schematic front view of a limiting chute of the present invention;
FIG. 4 is a schematic view of a limiting chute according to the present invention;
FIG. 5 is a schematic view of a limiting slider structure according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-upper clamping rod, 11-upper clamping ring, 12-limiting slide block, 2-lower clamping rod, 21-lower clamping ring, 22-limiting sliding groove, 3-anti-skid pattern and 4-locking hoop.
Detailed Description
Referring to fig. 1 to 5, the present invention provides a technical solution: a bone fragment positioning and clamping device for a surgical maxilla, comprising:
the lower clamping rod 2 is a straight rod, one end of the lower clamping rod is fixedly provided with a circular lower clamping ring 21, and the ring surface of the lower clamping ring 21 is perpendicular to the lower clamping rod 2;
a limit sliding groove 22 is formed in the rod body of the lower clamping rod 2, the limit sliding groove 22 penetrates through two ends of the lower clamping rod 2, and the lower clamping ring 21 blocks one end of the limit sliding groove 22;
the upper clamping rod 1 is a straight rod, one end of the upper clamping rod is fixedly provided with a circular upper clamping ring 11, and the ring surface of the upper clamping ring 11 is vertical to the upper clamping rod 1;
at least one limiting slide block 12 is fixedly arranged on the rod body of the upper clamping rod 1, and the limiting slide block 12 is arranged in a limiting slide groove 22 in a sliding manner without falling off;
the upper clamping rod 1 is slidably arranged on one side of the lower clamping rod 2 through the matching of a limiting sliding groove 22 and a limiting sliding block 12, and the upper clamping ring 11 and the lower clamping ring 21 are overlapped up and down;
locking hoop 4, go up the locking that clamping bar 1 can loosen through locking hoop 4 and take off under on clamping bar 2, free bone fold piece is difficult to dissect the problem that resets when can fundamentally solve maxillary fracture, can reach accurate in the operation, stable ideal fracture reduction effect, and this device can also avoid producing the fracture piece aversion, be difficult for producing free bone piece pine degree slippage scheduling problem, it is fixed to dissect the reduction with accurate reaching maxillary fracture, make the wounded recover as early as possible, early healing, and the patient heals up the back, ensure that the free bone fold piece of fracture resets stably, make the skeleton resume original appearance.
The lower clamping rod 2 is fixed on the annular outer wall of the lower clamping ring 21, the upper clamping rod 1 is also fixed on the annular outer wall of the upper clamping ring 11, the lower clamping ring 21 vertically extends out of the lower clamping rod 2, and the upper clamping ring 11 vertically extends out of the upper clamping rod 1, so that the operation is convenient, the operation is not influenced, and stable support can be provided;
anti-slip lines are distributed on the contact surface between the lower clamping rod 2 and the upper clamping rod 1, and the anti-slip lines are wave-shaped anti-slip lines, so that the locked upper clamping rod 1 and the locked lower clamping rod 2 cannot slip, and free fracture pieces can be stably clamped;
the locking hoop 4 is fixedly arranged on the outer wall of the lower clamping rod 2, and the upper clamping rod 1 and the locking hoop 4 can be clamped in a separated manner, so that the upper clamping rod 1 and the lower clamping rod 2 can be locked with each other;
the limiting slide block 12 is of a convex columnar structure, the limiting slide block 12 is convexly arranged on the contact surface of the upper clamping rod 1, which is opposite to the lower clamping rod 2, and the limiting slide block 12 and the limiting slide groove 22 are in transition fit, so that the upper clamping rod 1 of the device can conveniently slide on the lower clamping rod 2 and cannot fall off from each other;
the upper clamping ring 11 and the lower clamping ring 21 are oval annular structures with the same size, the upper clamping ring 11 and the lower clamping ring 21 are provided with a plurality of spare parts with different sizes and models, the maximum outer diameter range of the upper clamping ring 11 and the lower clamping ring 21 is between 1cm and 3cm, and the maximum diameter of inner holes of the upper clamping ring 11 and the lower clamping ring 21 is 0.5cm smaller than the outer diameter;
the thickness of the upper clamping ring 11 is the same as that of the lower clamping ring 21, and the thickness of the upper clamping ring and the thickness of the lower clamping ring are not more than 0.5cm, so that the device is suitable for clamping and fixing fracture fragments with different sizes.
In one embodiment of the utility model:
the embodiment of the utility model provides a bone fragment positioning and clamping device for a maxilla for operation, and the technical problem solved by the utility model is as follows: 1. the existing surgery mode is to cut open from the vestibular sulcus in the oral cavity, then clamp the fracture fragments with a vascular forceps, clamp the free bone fragments, belong to the common vascular forceps, and because of the problem of fracture angle, need to support continuously with the hand, and the support force and the clamping force are all by the force of the wrist and fingers of the hand to fix the fracture fragments, the more stable the forceps is held by hand, the titanium nail is more stable when locked, the unstable holding is easy to deviate, the tighter the hand is, the tighter the fracture fragments are pinched, otherwise, the easy slipping is caused when clamping the fragments, the positioning deviation is caused; 2. in the operation, when bone fragments are locked by a titanium nail, the titanium nail needs to be rotated for locking, so that the fracture fragments are easy to deflect by the rotating force, the angles of the fragments need to be continuously corrected, and the operation is very complicated.
The realized technical effects are as follows: 1. according to the jaw bone fracture locking device, the upper clamping ring 11 and the lower clamping ring 21 can be controlled to be clamped mutually by controlling the matching of the upper clamping rod 1 and the lower clamping rod 2, so that free bone fracture pieces can be clamped and positioned at the jaw bone defect position, the free bone fracture pieces can be clamped more stably, the fracture pieces are not prone to deviation, the positioning is more accurate and stable, stable support can be provided for the free bone fracture pieces, and the titanium nails and the titanium plates can conveniently lock the fracture pieces of the jaw bone in an operation;
2. the device can adapt to positioning of fracture fragments with different thicknesses and shapes, the fracture fragments are clamped up and down through the oval upper clamping ring 11 and the oval lower clamping ring 21, suspended support can be provided for free fracture pieces through the circular ring-shaped structure, the fracture fragment edges are convenient to erect, the holes in the middle can facilitate perforation and fixation of titanium nails, and the fracture fragments can be clamped more stably through the oval circular ring-shaped structure, so that the fracture fragments are not prone to rotating deflection due to the force of rotating the titanium nails;
3. the device can lock the hoop of the upper clamping rod 1 and the lower clamping rod 2 at any proper position through the locking hoop 4 so as to keep the clamping stability of the device on fracture fragments, and can be clamped and held by a single hand after clamping, so that the operation is more convenient, the fracture fragments are not easy to slip after the fracture fragments are clamped, and the fracture fragments are clamped between the upper clamping ring 11 and the lower clamping ring 21 so as to be more stable;
4. the last clamping bar 1 of this device and lower clamping bar 2 and last clamping ring 11 and lower clamping ring 21 between mutually perpendicular, such structure could be fit for more stretching into the inside operation that carries out of the tissue of maxilla, and such perpendicular contained angle can laminate the operation of maxilla more, makes the department of gripping of hand be difficult for forming the fixed department of titanium nail and titanium board and shelters from.
In order to solve the above problems, the technical solution in the embodiments of the present invention has the following general idea:
for better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the embodiments.
When the utility model is manufactured, two long rods are firstly manufactured as an upper clamping rod 1 and a lower clamping rod 2, the upper clamping rod 1 and the lower clamping rod 2 are respectively semicircular long rods, and the upper clamping rod 1 and the lower clamping rod 2 can be mutually spliced into a complete round rod;
the limiting slide block 12 and the limiting slide groove 22 are respectively arranged on the mutually spliced surfaces of the upper clamping rod 1 and the lower clamping rod 2, so that when the upper clamping rod 1 and the lower clamping rod 2 are spliced mutually, the limiting slide block 12 just can slide in the limiting slide groove 22, and the limiting slide block 12 and the limiting slide groove 22 are in transition fit, so that the limiting slide block 12 can conveniently slide in the limiting slide groove 22, but cannot be loosened too much, can slide in a proper position, cannot continue to slide when not pushed, and is convenient for adjusting the sliding length; the binding surface between the upper clamping rod 1 and the lower clamping rod 2 is provided with anti-slip lines 3, and the raised three-dimensional wave-shaped lines can be used as the anti-slip lines 3, so that the upper clamping rod 1 and the lower clamping rod 2 are not easy to slip after being locked;
the limiting slide block 12 and the limiting slide groove 22 are both in a convex shape, so that the limiting slide block 12 can slide in the limiting slide groove 22, and cannot fall off, and the use is more convenient;
a locking hoop 4 is sleeved and fixed outside the lower clamping rod 2, the locking hoop 4 is an adjustable locking hoop commonly used in bicycles and can be clasped at any position, and the device can be conveniently adjusted and locked by fracture fragments with different thicknesses and positions;
then, an upper clamping ring 11 is fixed at one end of the upper clamping rod 1, a lower clamping ring 21 is fixed at one end of the lower clamping rod 2, and the upper clamping ring 11 and the lower clamping ring 21 are mutually overlapped up and down, so that the upper clamping ring 11 and the lower clamping ring 21 can clamp the free bone folding pieces up and down after being overlapped up and down;
the device has three different types, which is convenient for the fixation of fracture fragments with different sizes;
the upper clamping ring 11 and the lower clamping ring 21 are provided with three components with different sizes and models, the outer diameters of the upper clamping ring 11 and the lower clamping ring 21 are respectively 1cm, 2cm and 3cm of spare parts with different sizes, and the diameters of three inner holes of the upper clamping ring 11 and the lower clamping ring 21 with different sizes are respectively 0.5cm, 1.5cm and 2.5 cm; the length of the upper clamping rod 1 and the lower clamping rod 2 in the three types is the same, and the upper clamping rod and the lower clamping rod are convenient to hold and do not need to be too long;
the thicknesses of the upper clamping ring 11 and the lower clamping ring 21 are the same and are not more than 0.5cm,
when the utility model is used, the size of the free bone folding piece on the maxilla is determined in advance by means of shooting or measuring, firstly, an opening is cut on the inner side of the lip in the mouth, an upper clamping ring 11 and a lower clamping ring 21 with proper sizes are selected, then an upper clamping rod 1 and a lower clamping rod 2 are held by hands, the upper clamping ring 11 and the lower clamping ring 21 in an opening state are extended into a gap between the maxilla and facial muscles from the opening, then the free bone folding piece is sleeved and framed by the oval lower clamping ring 21, then the upper clamping rod 1 is pushed to enable the upper clamping ring 11 to clamp the free bone folding piece on the lower clamping ring 21, the two sides of the free bone folding piece are ensured to be sleeved and framed in the oval holes of the upper clamping ring 11 and the lower clamping ring 21, then the locking hoop 4 is locked to ensure that the upper clamping rod 1 and the lower clamping rod 2 are clamped stably, then the angle and the position of the free bone folding piece are adjusted, the edges of the upper clamping ring 11 and the lower clamping ring 21 of the device are stably erected on the original free bone folding piece position of the maxilla, then, the free bone folding pieces are fixed by using a locking titanium plate and titanium nails, the upper clamping ring 11 and the lower clamping ring 21 are vertical to the upper clamping rod 1 and the lower clamping rod 2 during operation, so that the operation is not influenced, the wound in the oral cavity is not blocked, the free bone folding pieces can be conveniently reset and locked, the operation does not have a wound on the facial skin, the facial appearance of a patient is not influenced, the appearance is not influenced, and the operation is more convenient, during operation, the upper clamping ring 11 and the lower clamping ring 21 clamped by the device can provide support for the locking operation, the jaw bone of the fracture is prevented from being forced to collapse, the upper clamping ring 11 and the lower clamping ring 21 can limit the rotation of the free bone folding pieces, the rotation dislocation of the free bone folding pieces is avoided, after the free bone folding pieces are reset and locked, the locking hoop 4 can be loosened, so that the upper clamping ring 11 and the lower clamping ring 21 are loosened, then the upper clamping rod 1 is slid to release the free bone fragments, and then the device is taken out from the oral cavity, thus completing the operation.
Although specific embodiments of the utility model have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the utility model, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the utility model, which is to be limited only by the appended claims.
Claims (6)
1. A bone fragment positioning and clamping device for a maxilla for surgery, comprising:
the lower clamping rod (2) is a straight rod, one end of the lower clamping rod is fixedly provided with a circular lower clamping ring (21), and the ring surface of the lower clamping ring (21) is perpendicular to the lower clamping rod (2);
a limiting sliding groove (22) is formed in the rod body of the lower clamping rod (2), the limiting sliding groove (22) penetrates through two ends of the lower clamping rod (2), and the lower clamping ring (21) blocks one end of the limiting sliding groove (22);
the upper clamping rod (1) is a straight rod, one end of the upper clamping rod is fixedly provided with a circular upper clamping ring (11), and the ring surface of the upper clamping ring (11) is perpendicular to the upper clamping rod (1);
at least one limiting sliding block (12) is fixedly arranged on the rod body of the upper clamping rod (1), and the limiting sliding block (12) is arranged in a limiting sliding groove (22) in a sliding manner without falling off;
the upper clamping rod (1) is slidably arranged on one side of the lower clamping rod (2) through the matching of a limiting sliding groove (22) and a limiting sliding block (12), and the upper clamping ring (11) and the lower clamping ring (21) are overlapped up and down;
the locking hoop (4), go up clamping bar (1) through the locking hoop (4) locking that can loosen and take off on clamping bar (2) down.
2. A bone fragment positioning and clamping device for a surgical maxilla according to claim 1, wherein: the lower clamping rod (2) is fixed on the annular outer wall of the lower clamping ring (21), and the upper clamping rod (1) is also fixed on the annular outer wall of the upper clamping ring (11).
3. A bone fragment positioning and clamping device for a surgical maxilla according to claim 1, wherein: anti-skid lines are distributed on the contact surface between the lower clamping rod (2) and the upper clamping rod (1), and the anti-skid lines are wave-shaped anti-skid lines.
4. A bone fragment positioning and clamping device for a surgical maxilla according to claim 1, wherein: the locking hoop (4) is fixedly arranged on the outer wall of the lower clamping rod (2), and the upper clamping rod (1) and the locking hoop (4) can be separated to clamp tightly.
5. A bone fragment positioning and clamping device for a surgical maxilla according to claim 1, wherein: the limiting slide block (12) is of a convex columnar structure, the limiting slide block (12) is convexly arranged on the contact surface of the upper clamping rod (1) just opposite to the lower clamping rod (2), and the limiting slide block (12) is in transition fit with the limiting sliding groove (22).
6. A bone fragment positioning and clamping device for a surgical maxilla according to claim 1, wherein: the upper clamping ring (11) and the lower clamping ring (21) are oval annular structures with the same size, the upper clamping ring (11) and the lower clamping ring (21) are provided with a plurality of spare parts with different sizes and models, the maximum outer diameter range of the upper clamping ring (11) and the lower clamping ring (21) is between 1cm and 3cm, and the maximum diameter of inner holes of the upper clamping ring (11) and the lower clamping ring (21) is 0.5cm smaller than the outer diameter;
the upper clamping ring (11) and the lower clamping ring (21) are the same in thickness, and the thicknesses of the upper clamping ring and the lower clamping ring are not more than 0.5 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120679444.8U CN215425035U (en) | 2021-04-02 | 2021-04-02 | Bone fragment positioning and clamping device for maxilla for operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120679444.8U CN215425035U (en) | 2021-04-02 | 2021-04-02 | Bone fragment positioning and clamping device for maxilla for operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215425035U true CN215425035U (en) | 2022-01-07 |
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ID=79703793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120679444.8U Expired - Fee Related CN215425035U (en) | 2021-04-02 | 2021-04-02 | Bone fragment positioning and clamping device for maxilla for operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215425035U (en) |
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2021
- 2021-04-02 CN CN202120679444.8U patent/CN215425035U/en not_active Expired - Fee Related
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Granted publication date: 20220107 |