CN219397532U - Multi-dimensional encircling locking bone fracture plate system for near-joint fracture - Google Patents
Multi-dimensional encircling locking bone fracture plate system for near-joint fracture Download PDFInfo
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- CN219397532U CN219397532U CN202320393536.9U CN202320393536U CN219397532U CN 219397532 U CN219397532 U CN 219397532U CN 202320393536 U CN202320393536 U CN 202320393536U CN 219397532 U CN219397532 U CN 219397532U
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Abstract
The utility model provides a multidimensional encircling locking bone plate system for near joint fracture, which belongs to the technical field of medical appliances and comprises: a plurality of locking screws, a plurality of cortical bone compression screws and a multidimensional encircling locking bone plate; the multidimensional encircling locking bone plate comprises a head part, a middle part and a tail part; the head is provided with a plurality of plane arms, and threaded holes are formed in the end parts of the plane arms; the middle part is provided with a plurality of locking pressurizing holes; the tail part is in a bullet structure; the locking screw and the cortical bone pressurizing screw are fixedly connected with the multidimensional encircling locking bone plate and the bone through the locking pressurizing hole. The multi-dimensional encircling locking bone plate provided by the utility model adopts a multi-plane arm design near the near joint, and the plate surface can be adjusted in situ according to the condition of a patient, so that the bone plate is more fitted with the bone contour, and the stability of bone plate fixation is increased.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to a multidimensional encircling locking bone fracture plate system for near joint fracture.
Background
Proximal fractures are a common type of fracture in clinic, and are mainly manifested by pain at the fracture site and loss of function. The blood supply of the fracture part is insufficient, the fracture alignment is poor, and malnutrition is an important cause for inducing the fracture at the proximal joint end. The near joint fracture is more complex than the diaphyseal fracture, and because the joint is positioned at the metaphyseal of the long bone, the cancellous bone is rich, the surface is covered by more soft tissues, and if the treatment is not timely carried out or the treatment method is unreasonable, the conditions of traumatic arthritis, unstable fixation, joint dysfunction and the like can occur, and the life quality of patients is seriously influenced.
The existing locking bone fracture plate is mainly designed for common fracture, a near joint part is simply coated, a coating surface is designed for a universal human anatomy surface, the fracture condition and the bone characteristics of a patient cannot be adjusted, and due to the limitation of materials, the common pure titanium bone fracture plate is thicker, so that discomfort of the patient is easily caused, the TC4 titanium alloy has better mechanical properties, and toxic elements such as aluminum and vanadium are contained, so that other physical problems can be possibly caused.
Disclosure of Invention
The utility model aims to provide a multidimensional encircling locking bone plate system for near joint fracture.
In order to solve the technical problems, the aim of the utility model is realized as follows:
a multi-dimensional encircling locking bone plate system for a proximal joint fracture, comprising: a plurality of locking screws, a plurality of cortical bone compression screws and a multidimensional encircling locking bone plate;
the multidimensional encircling locking bone fracture plate is in contact with bones and has an arc shape matched with the bones, and comprises a head part, a middle part and a tail part; the head is provided with a plurality of plane arms, and threaded holes are formed in the end parts of the plane arms; the middle part is provided with a plurality of locking pressurizing holes; the tail part is in a bullet structure;
the locking screw is fixedly connected with the multidimensional encircling type locking bone fracture plate and the bone through the locking pressurizing hole;
the cortical bone pressurizing screw is fixedly connected with the multidimensional encircling type locking bone plate and the bone through the locking pressurizing hole and can pressurize.
On the basis of the above aspect and as a preferable aspect of the above aspect, the locking screw includes a locking screw head portion, a locking screw shaft portion, and a locking screw tail portion; the head of the locking screw is of a ball head structure, an external thread is arranged on the outer surface of the locking screw, and a quincuncial countersunk slot is arranged on the end surface of the locking screw; the locking screw rod part is provided with a first anti-pulling thread; the tail of the locking screw is provided with a cutting edge.
In addition to the above, and as a preferred aspect of the above, the cortical bone compression screw includes a compression screw head, a compression screw shaft, and a compression screw tail; the head of the pressurizing screw is of a ball head structure, and a quincuncial countersunk notch is formed in the end face of the pressurizing screw; the pressing screw rod part is provided with a second anti-pulling thread; the tail of the pressing screw is provided with a cutting edge.
On the basis of the scheme, and as a preferable scheme of the scheme, the bending machine further comprises a bending machine; the bending machine is L-shaped, connecting threads are arranged at two ends of the bending machine, and a holding part is arranged in the middle of the bending machine.
Based on the scheme and as a preferable scheme of the scheme, the multidimensional surrounding type locking bone plate is made of medical high-strength and toughness pure titanium.
On the basis of the above scheme and as a preferable scheme of the above scheme, the material of the locking screw is TC4 titanium alloy.
On the basis of the above scheme and as a preferable scheme of the above scheme, the material of the cortical bone compression screw is TC4 titanium alloy.
The beneficial effects of the utility model are as follows:
the multi-dimensional encircling locking bone plate provided by the utility model adopts a multi-plane arm design near the near joint, and the plate surface can be adjusted in situ according to the condition of a patient, so that the bone plate is more fitted with the bone contour, and the stability of bone plate fixation is increased.
Drawings
FIG. 1 is a schematic view of a multi-dimensional surrounding locking bone plate structure of the present utility model.
Fig. 2 is a schematic view of the structure of the locking screw of the present utility model.
Fig. 3 is a schematic view of the structure of the cortical bone compression screw of the present utility model.
FIG. 4 is a schematic view of a bending machine according to the present utility model.
FIG. 5 is a schematic view of the present utility model for in-situ adjustment of the angle of a planar arm of a head using a bender.
Fig. 6 is a multi-dimensional encircling locking bone plate system of the present utility model suitable for use with distal humerus fractures.
Fig. 7 the present utility model is applicable to a multi-dimensional encircling locking bone plate system suitable for olecranon fractures.
Fig. 8 the present utility model is a multi-dimensional encircling locking bone plate system for distal anterolateral fractures of the tibia.
Fig. 9 the present utility model is applicable to a multi-dimensional encircling locking bone plate system for distal anterior tibial fractures.
In the figure: 1. a locking screw; 11. a locking screw head; 12. locking the screw shank; 13. locking the tail of the screw; 14. the first anti-pulling thread; 15. an external thread; 2. cortical bone compression screws; 21. a compression screw head; 22. a compression screw shank; 23. pressing the tail part of the screw; 24. the second anti-pulling thread; 3. a multidimensional encircling locking bone plate; 31. a head; 32. a middle part; 33. tail part; 34. a planar arm; 35. locking the pressurizing hole; 36. a screw hole; 4. a bending device; 41. a connecting thread; 42. a holding part.
Detailed Description
The utility model will be further described with reference to the drawings and specific examples.
A multi-dimensional encircling locking bone plate system for a proximal joint fracture, comprising: a plurality of locking screws 1, a plurality of cortical bone compression screws 2, a multi-dimensional encircling locking bone plate 3 and a bending device 4.
The locking screw 1 is made of TC4 titanium alloy and is used for connecting the multidimensional encircling type locking bone fracture plate 3 and human bones, so that the internal fixation effect is ensured.
The locking screw 1 comprises a locking screw head 11, a locking screw shaft 12 and a locking screw tail 13. The head 11 of the locking screw is of a ball head structure, the outer surface of the locking screw is provided with an external thread 15, and the end face of the head is provided with a plum blossom-shaped countersink. The external thread 15 can be matched with the locking pressurizing hole 35 on the multidimensional encircling locking bone fracture plate 3 to fix the bone fracture plate and the bones of the patient, so that good fixing effect is ensured. The quincuncial countersink can be matched with a quincuncial screwdriver to transmit driving force so as to drive the locking screw 1. The locking screw rod part 12 is provided with a first anti-pulling thread 14, so that the connection strength of the locking screw 1 and bones is improved, and the locking screw is prevented from falling off. The locking screw tail 13 is provided as a cutting edge, giving the screw 1 self-tapping properties for locking the screw 1 into the bone of a patient.
The cortical bone compression screw 2 is made of TC4 titanium alloy and is used for connecting the multidimensional encircling locking bone fracture plate 3 and the human bones, and simultaneously, the fracture part can be pressurized so as to ensure the fracture reduction effect.
The cortical bone compression screw 2 includes a compression screw head 21, a compression screw shaft 22, and a compression screw tail 23. The head 21 of the compression screw is in a ball head structure, a quincuncial countersunk notch is formed in the end face of the compression screw, and the compression screw 2 of the cortical bone can be screwed into the bone by matching with a quincuncial screwdriver. The compression screw shank 22 is provided with a second anti-pull thread 24 to improve the strength of the connection of the cortical compression screw 2 to the bone. The compression screw tail 23 is provided as a cutting edge to provide the cortical compression screw 2 with self-tapping properties for driving into the patient's bone.
The multidimensional encircling locking bone plate 3 is in an arc shape matched with the bone when contacting with the bone, and can better fit the bone surface, and comprises a head 31, a middle 32 and a tail 33.
The head 31 is provided with a number of planar arms 34, the ends of the planar arms 34 being provided with threaded holes 36. The plane arm 34 and the multidimensional encircling type locking bone plate 3 are integrally formed, and can be bent and adjusted under the action of the bending device 4 to form a multi-plane flat plate profile so as to be attached to the bone of a patient, so that a better internal fixation effect is achieved. The arrangement of the planar arms 34 may be selected correspondingly for different bones.
The middle portion 32 is provided with locking compression holes 35 to fit the screw 1 and cortical compression screw 2. The locking screw 1 or the cortical compression screw 2 can be selected according to the fracture condition of the patient to ensure internal fixation and bone reduction.
The tail 33 is in a bullet structure, which is helpful for the placement of the submucosal bone plate and reduces the stimulation to soft tissues.
Preferably, the multidimensional encircling type locking bone plate 3 is made of medical high-strength and toughness pure titanium. The medical high-strength and high-toughness pure titanium has the characteristics of high strength and high toughness, the mechanical property indexes of the medical high-strength and high-toughness pure titanium are equivalent to those of TC4 and TC4ELI in GB/T13810, and the problems of ion toxicity of a titanium alloy material and low strength of a conventional pure titanium material are avoided, so that the bone fracture plate made of the material has thinner thickness and narrower width under the same mechanical property, has smaller stimulation to soft tissues, and can reduce uncomfortable feeling of patients.
The bending device 4 is used for adjusting the plane arm 34, is L-shaped, is provided with connecting threads 41 at two ends, and is provided with a holding part 42 in the middle. The connecting threads 41 cooperate with the screw holes 36 at the ends of the planar arms 34 to effect adjustment of the planar arms 34. The grip 42 facilitates the doctor's grip to avoid slipping.
The implantation process comprises the following steps: preoperative images are evaluated and a preoperative plan is formulated, and appropriate bone plates and screws are selected. Cutting the skin, implanting the multidimensional encircling bone fracture plate 3 into a fracture part, and if necessary, temporarily resetting and fixing the position of the plate by using a K line hole of the plate body; the plate articular surface planar arm 134 is then adjusted in situ using the bender 4 to conform to the patient's bone surface. After the bone plate is molded, firstly placing a screw near the joint, penetrating the cortex on the opposite side of the nail point on the bone by using a drill bit, determining the length of the required screw by using a depth finder, and screwing the locking screw 1 into the screw hole 36 of the plane arm near the joint; then the middle screw of the bone fracture plate is put into, according to the condition of a patient, proper screws and the number of screws are selected, the locking pressurizing hole 35 in the middle of the bone fracture plate can be used for selectively putting the locking screw 1 or the cortical bone pressurizing screw 2, a drill bit is used for penetrating the cortex opposite to the upper nail point of the bone, a depth finder is used for determining the length of the required screw, if the locking screw 1 is not needed to be pressurized, if the fracture part is needed to be pressurized, the cortical bone pressurizing screw 2 can be put into, when the pressurizing ball head of the cortical bone pressurizing screw 2 is screwed in, the fracture block can be driven to move to play a pressurizing effect, and a single locking pressurizing hole allows a pressurizing distance of 0.5 mm. All screws are tightened to ensure that they are locked to the bone plate. Careful assessment of reduction and fixation by direct vision or fluoroscopy confirms the stability of fixation, and whether the movement of the joint is restricted.
Embodiment one:
as shown in fig. 6, in this embodiment, the number of the planar arms 34 is three, two are disposed at the end of the multi-dimensional encircling locking bone plate 3, and the other is disposed at the side of the multi-dimensional encircling locking bone plate 3, so that the bone fracture device is suitable for distal humerus fracture.
Embodiment two:
as shown in fig. 7, in this embodiment, the number of the planar arms 34 is three, one is disposed at the end of the multi-dimensional encircling locking bone plate 3, and the other two are disposed at the side of the multi-dimensional encircling locking bone plate 3, so that the bone plate is suitable for olecranon fracture.
Embodiment III:
as shown in fig. 8, in this embodiment, the number of the planar arms 34 is three, and three are all disposed at the end of the multi-dimensional encircling locking bone plate 3, so that the locking bone plate is suitable for distal anterolateral fracture of tibia.
Embodiment four:
as shown in fig. 9, in this embodiment, the number of the planar arms 34 is four, and the planar arms are distributed in a cross shape and connected to the end of the multidimensional encircling locking bone plate 3, so that the planar arm is suitable for distal tibia fracture.
The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (7)
1. A multi-dimensional encircling locking bone plate system for a proximal joint fracture, comprising: a plurality of locking screws (1), a plurality of cortical bone compression screws (2) and a multi-dimensional encircling locking bone plate (3);
the multidimensional encircling locking bone fracture plate (3) is in an arc shape matched with bones when being contacted with the bones, and comprises a head part (31), a middle part (32) and a tail part (33); the head (31) is provided with a plurality of plane arms (34), and screw holes (36) are formed at the end parts of the plane arms (34); the middle part (32) is provided with a plurality of locking pressurizing holes (35); the tail part (33) is in a bullet structure;
the locking screw (1) is fixedly connected with the multidimensional encircling type locking bone fracture plate (3) and bones through the locking pressurizing hole (35);
the cortical bone pressurizing screw (2) is fixedly connected with the multidimensional encircling type locking bone fracture plate (3) and bones through the locking pressurizing hole (35) and can pressurize.
2. The multi-dimensional encircling locking bone plate system for proximal fractures according to claim 1, wherein the locking screw (1) comprises a locking screw head (11), a locking screw shaft (12) and a locking screw tail (13); the head (11) of the locking screw is of a ball head structure, an external thread (15) is arranged on the outer surface of the locking screw, and a quincuncial countersunk slot is arranged on the end face of the locking screw; the locking screw rod part (12) is provided with a first anti-pulling thread (14); the locking screw tail (13) is provided as a cutting edge.
3. The multi-dimensional encircling locking bone plate system for proximal fractures according to claim 1, wherein said cortical bone compression screw (2) comprises a compression screw head (21), a compression screw shaft (22) and a compression screw tail (23); the head (21) of the pressurizing screw is of a ball head structure, and a quincuncial countersink is formed in the end face of the pressurizing screw; the compression screw rod part (22) is provided with a second anti-pulling thread (24); the compression screw tail (23) is provided as a cutting edge.
4. The multi-dimensional, encircling locking bone plate system for proximal fractures according to claim 1, further comprising a bender (4); the bending machine (4) is L-shaped, connecting threads (41) are arranged at two ends of the bending machine, and a holding part (42) is arranged in the middle of the bending machine.
5. The multi-dimensional encircling locking bone plate system for the near-joint fracture according to claim 1, wherein the multi-dimensional encircling locking bone plate (3) is made of medical high-strength and toughness pure titanium.
6. The multi-dimensional encircling locking bone plate system for proximal fractures according to claim 1, wherein the locking screw (1) is made of TC4 titanium alloy.
7. The multi-dimensional encircling locking bone plate system for proximal fractures according to claim 1, wherein the cortical compression screw (2) is made of TC4 titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320393536.9U CN219397532U (en) | 2023-03-01 | 2023-03-01 | Multi-dimensional encircling locking bone fracture plate system for near-joint fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320393536.9U CN219397532U (en) | 2023-03-01 | 2023-03-01 | Multi-dimensional encircling locking bone fracture plate system for near-joint fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219397532U true CN219397532U (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320393536.9U Active CN219397532U (en) | 2023-03-01 | 2023-03-01 | Multi-dimensional encircling locking bone fracture plate system for near-joint fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219397532U (en) |
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2023
- 2023-03-01 CN CN202320393536.9U patent/CN219397532U/en active Active
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