CN213406250U - Tibia tuberosity fracture block fixing structure - Google Patents
Tibia tuberosity fracture block fixing structure Download PDFInfo
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- CN213406250U CN213406250U CN202022074199.6U CN202022074199U CN213406250U CN 213406250 U CN213406250 U CN 213406250U CN 202022074199 U CN202022074199 U CN 202022074199U CN 213406250 U CN213406250 U CN 213406250U
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Abstract
The utility model provides a shin bone tuberosity fracture piece fixed knot constructs, include: the wrapping structure is suitable for wrapping the tibial tuberosity fracture block and the bone tissues around the tibial tuberosity fracture block and fixing the tibial tuberosity fracture block and the bone tissues through screws; the hook structure is fixedly arranged on the wrapping structure and is suitable for being hooked at the joint of the patellar ligament and the fracture block. The fixing structure of the utility model adopts a wrapping method to tightly wrap the fracture block and the bone tissue around the fracture block after the fracture block and the bone tissue are reset and squeezed tightly, and the fracture block and the bone tissue are fixed by adopting a plurality of screws; after the hook structure is arranged, the hook structure is hooked at the joint of the patellar ligament and the fracture block, so that the fracture block is prevented from being pulled out by the patellar ligament, and the force resisting the fracture block pulled out by the patellar ligament is from the whole wrapping structure instead of a single screw; through the arrangement, the phenomenon that too large force is applied to a single position of a skeleton is avoided, and the problem of comminuted fracture caused by fixing a fracture block can be avoided as much as possible; for patients with osteoporosis, it can be used as the case may be.
Description
Technical Field
The utility model relates to a fracture is supplementary fixed with medical instrument technical field, concretely relates to shin bone tuberosity fracture piece fixed knot constructs.
Background
The total knee replacement is an effective method for treating middle and late-stage arthritis, but the injury of the knee stretching device is contraindication of the total knee replacement, and the premise of the total knee replacement is that the knee stretching device of a patient is complete, otherwise, the treatment effect is greatly influenced. As shown in fig. 1, the knee extension device mainly includes a quadriceps femoris tendon 01, a patella 02, and a patellar ligament 03. In reality, some patients have intact knee extension devices before the total knee replacement, but have trauma after the total knee replacement, which results in damage to the knee extension devices. One such type of injury is a fracture at the tibial tubercle 04 position, which can pull the fracture away from its original position after fracture because patellar ligament 03 is still attached to the fracture.
For such patients, if the patients have no history of total knee replacement surgery, long screws and toothed washers are used for matching and fixing at the injured part, specifically, a fracture block is reset firstly, then holes are formed in the fracture block, then the toothed washers are placed on the fracture block, and after the long screws are used for penetrating the toothed washers and the holes in the fracture block, the long screws are screwed into the bone to realize the fixation. However, after the knee joint replacement, the knee joint prosthesis can not be fixed by long screws due to the blocking of the knee joint prosthesis below the tibial tubercle 04; and the patients with the disease are often old, have osteoporosis, and have frequent comminuted fracture at the position of a tibial tubercle, and the toothed washer is easy to fix and not firm, so that the traditional method for matching and fixing the long screw and the toothed washer is difficult to use.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the technical defect that the long screw among the prior art and the mode of taking the tooth packing ring can't be used for the shin bone tuberosity fracture that takes place after the total knee replacement to a fixed knot that can be used for above-mentioned shin bone tuberosity fracture constructs is provided.
Therefore, the utility model provides a shin bone tuberosity fracture piece fixed knot constructs, include:
the wrapping structure is suitable for wrapping a tibial nodular fracture block and bone tissues around the fracture block and fixedly connecting the tibial nodular fracture block and the bone tissues around the fracture block through a plurality of screws;
the hook structure is fixedly arranged on the wrapping structure and is suitable for being hooked at the joint of the patellar ligament and the fracture block.
As a preferred aspect, the wrapping structure includes:
the arc-shaped wrapping sheet is suitable for wrapping the outer side of the tibial tuberosity fracture block in an arc shape and is provided with at least one first through hole;
the first side fixing piece is fixedly connected with one side of the arc-shaped wrapping piece, extends downwards along the tibia direction for a set length and is provided with at least one second through hole;
the second side fixing piece is fixedly connected with the other side of the arc-shaped wrapping piece, extends downwards along the tibia direction for a set length, and is provided with at least one third through hole.
Preferably, the first side fixing piece and the second side fixing piece are symmetrically arranged.
As a preferred scheme, the arc wrapping sheet is of a flexible steel plate structure.
As a preferable scheme, the thickness of the arc wrapping sheet is 3-5mm, the width is 1-3cm, the radian is 38-42 degrees, and the arc length is 1.5-3 cm.
Preferably, the thickness of the first side fixing sheet and/or the second side fixing sheet is 3 to 5mm, the width is 2 to 4cm, and the length is 8 to 15 cm.
Preferably, one end of the first side fixing sheet and/or the second side fixing sheet far away from the arc-shaped wrapping sheet is of a pointed tooth structure.
Preferably, the angle of the sharp corner of the tine structure is 30-60 degrees, and the topmost end of the sharp corner is in the shape of a circular arc.
Preferably, the hooking structure is at least one hook.
As a preferable scheme, the hook is fixedly arranged on the arc wrapping sheet.
The technical scheme provided by the utility model, following advantage has:
1. the utility model discloses a shin bone tuberosity fracture piece fixed knot constructs, including parcel structure and hook structure, the parcel structure is suitable for the fracture piece of parcel shin bone tuberosity position, and is located the osseous tissue around the fracture piece to can be through a plurality of screw and fracture piece and osseous tissue fixed connection, the hook structure is fixed to be set up in the parcel structure, is suitable for the hook to hang in the junction of patellar ligament and fracture piece, prevents that the patellar ligament from pulling the fracture piece off normal. The fixing structure of the utility model adopts a wrapping method to tightly wrap the fracture block and the bone tissue around the fracture block after the fracture block and the bone tissue are reset and squeezed tightly, and the fracture block and the bone tissue are fixed by adopting a plurality of screws; after the hook structure is arranged, the hook structure is hooked at the joint of the patellar ligament and the fracture block, so that the fracture block is prevented from being pulled out by the patellar ligament, and the force resisting the fracture block pulled out by the patellar ligament is from the whole wrapping structure instead of a single screw; through the arrangement of the wrapping structure and the hooking structure and the adoption of a plurality of screws for dispersed fixation, the phenomenon that too large force is applied to a single position of a skeleton is avoided, so that the problem of comminuted fracture caused by fixing a fracture block can be avoided as much as possible; for patients with osteoporosis, it can be used as the case may be. The utility model discloses a fixed knot constructs, has reduced the requirement to patient's sclerotin hardness, and the security is higher.
2. The utility model discloses a shin bone tuberosity fracture piece fixed knot constructs, the parcel structure includes arc parcel piece, first side stationary blade and second side stationary blade are established respectively in the both sides of arc parcel piece, and set for length along shin bone direction downwardly extending, knee joint prosthesis is generally good at, the screw passes behind the first through-hole on the arc parcel piece to be connected with shin bone tuberosity fixed block, after passing the third through-hole on second through-hole or the second side stationary blade on the first side stationary blade, be connected with the shin bone.
3. The utility model discloses a shin bone tuberosity fracture piece fixed knot constructs, arc parcel piece are the flexbile steel plate structure, and when arc parcel piece was not very laminated with patient's bone tissue, through the twist operation of screw, can drive flexbile steel plate and warp a little, make arc parcel piece tightly wrap up on patient's shin bone.
4. The utility model discloses a shin bone tuberosity fracture piece fixed knot constructs, the thickness of arc parcel piece is 3-5mm, and the width is 1-3cm, and the radian is 38-42, and the arc length is 1.5-3cm, can adapt to most patients' shin bone size well, and the cladding nature is good, and stability is good.
5. The utility model discloses a shin bone tuberosity fracture piece fixed knot constructs, the one end of keeping away from arc parcel piece of first side stationary blade and/or second side stationary blade is sharp tooth structure, and the downward operation of inserting when sharp tooth structure is convenient for perform the operation. The top end of the sharp corner is arc-shaped, so that human tissues can be prevented from being scratched.
6. The utility model discloses a fixed knot constructs for shin bone fracture, couple structure are at least one couple, and the couple is fixed to be set up on arc parcel piece. The arc wrapping sheet integrally provides a force source for the hook, and avoids concentrated pulling on a certain point of the skeleton.
Drawings
In order to more clearly illustrate the technical solutions in the prior art or the embodiments of the present invention, the drawings used in the description of the prior art or the embodiments are briefly introduced below.
FIG. 1 is a schematic view of a knee extension device.
Fig. 2 is a perspective view of the tibial tuberosity fracture block fixing structure of the present invention.
Reference numerals: 1. a first side fixing sheet; 11. a second through hole; 2. a second side fixing sheet; 21. a third through hole; 3. an arc wrapping sheet; 31. a first through hole; 4. a tine configuration; 5. and (4) hanging hooks.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings.
Examples
The present embodiment provides a tibial tuberosity fracture fixation structure, as shown in fig. 2, comprising: the wrapping structure is suitable for wrapping a tibial nodular fracture block and bone tissues around the fracture block and fixedly connecting the tibial nodular fracture block and the bone tissues around the fracture block through a plurality of screws; the hook structure is fixedly arranged on the wrapping structure and is suitable for being hooked at the joint of the patellar ligament and the fracture block.
The shin bone tuberosity fracture piece fixed knot of this embodiment constructs, including parcel structure and hook structure, the parcel structure is suitable for the fracture piece of parcel shin bone tuberosity position and is located the osseous tissue around the fracture piece to can be through a plurality of screw and fracture piece and osseous tissue fixed connection, the hook structure is fixed to be set up on the parcel structure, is suitable for the hook to be in the junction of patellar ligament and fracture piece, prevents that the patellar ligament from pulling the fracture piece off normal. The fixing structure of the embodiment adopts a wrapping method to tightly wrap the fracture block and bone tissues around the fracture block after the fracture block and the bone tissues are reset and squeezed, and is fixed by adopting a plurality of screws; after the hook structure is arranged, the hook structure is hooked at the joint of the patellar ligament and the fracture block, so that the fracture block is prevented from being pulled out by the patellar ligament, and the force resisting the fracture block pulled out by the patellar ligament is from the whole wrapping structure instead of a single screw; through the arrangement of the wrapping structure and the hooking structure and the adoption of a plurality of screws for dispersed fixation, the phenomenon that too large force is applied to a single position of a skeleton is avoided, so that the problem of comminuted fracture caused by fixing a fracture block can be avoided as much as possible; for patients with osteoporosis, it can be used as the case may be. The fixing structure of the embodiment reduces the requirement on the bone hardness of a patient, and is higher in safety.
As shown in fig. 2, the wrapping structure includes: the arc-shaped wrapping sheet 3 is suitable for wrapping the outer side of the tibial tuberosity fracture block in an arc shape and is provided with at least one first through hole 31; the first side fixing piece 1 is fixedly connected with one side of the arc-shaped wrapping piece 3, extends downwards along the tibia direction for a set length and is provided with at least one second through hole 11; and the second side fixing piece 2 is fixedly connected with the other side of the arc wrapping piece 3, extends downwards along the tibia direction for a set length and is provided with at least one third through hole 21. The first and second lateral anchoring pieces 1 and 2 are generally longer than the knee joint prosthesis.
In this embodiment, the first side fixing sheet 1 and the second side fixing sheet 2 are symmetrically disposed. In some special cases, asymmetry may also be provided.
The arc wrapping sheet 3 is of a flexible steel plate structure. When the arc wrapping sheet 3 is not very fit with the bone tissue of a patient, the flexible steel plate can be driven to deform slightly by screwing in the screw, so that the arc wrapping sheet 3 is tightly wrapped on the tibia of the patient.
In the embodiment, the arc wrapping sheet 3 has the thickness of 3-5mm, the width of 1-3cm, the radian of 38-42 degrees and the arc length of 1.5-3cm, can be well adapted to the size of the tibia of most patients, and has good wrapping property and good stability.
The thickness of the first side fixing sheet 1 and/or the second side fixing sheet 2 is 3-5mm, the width is 2-4cm, and the length is 8-15 cm.
One end of the first side fixing sheet 1 and/or the second side fixing sheet 2 far away from the arc-shaped wrapping sheet 3 is a pointed tooth structure 4. The angle of the sharp corner of the sharp tooth structure 4 is 30-60 degrees, and the topmost end of the sharp corner is arc-shaped. The tine formation 4 facilitates the intraoperative downward insertion procedure. The top end of the sharp corner is arc-shaped, so that human tissues can be prevented from being scratched.
The hook structure is at least one hook 5, the hook 5 is fixedly arranged on the arc wrapping sheet 3. The arc wrapping sheet 3 integrally provides a force source for the hook, and avoids centralized pulling on a certain point of the skeleton.
In this embodiment, the screws may be ordinary short screws, i.e. ordinary short screws are used to fix the wrapping structure on the fracture block and the bone tissue around the fracture block after passing through the first through hole, the second through hole and the third through hole.
As a refinement, the screw may also include a compression screw and a locking screw.
The extruding screw comprises an extruding nut and an extruding bolt shaft, the diameter of the extruding bolt shaft is smaller than the inner diameters of the first through hole 31, the second through hole 11 and the third through hole 21, and the diameter of the extruding nut is larger than the inner diameters of the first through hole 31, the second through hole 11 and the third through hole 21.
The lock screw includes lock nut and lock bolt axle, the diameter of lock bolt axle is greater than the diameter of extrusion bolt axle, and is less than first through-hole 31 the second through-hole 11 with the internal diameter of third through-hole 21, be equipped with the screw thread on lock nut's the external diameter, can with establish first through-hole 31 the second through-hole 11 with it is fixed that the screw thread matching spiro union on the third through-hole 21 inner wall is fixed.
In this embodiment, the inner diameters of the first through hole 31, the second through hole 11, and the third through hole 21 are the same, and the inner walls thereof are provided with internal threads.
The shin bone tuberosity fracture piece fixed knot in this embodiment constructs, when specifically using, at first hang 5 couples in the junction of patellar ligament and fracture piece, then the application of force is drawn down, make the fracture piece reset, then wrap up 3 parcel in the fracture piece outsides with arc parcel, use extrusion screw to pass first through-hole 31, second through-hole 11 and third through-hole 21, extrusion parcel structure is to laminating with the osseous tissue, then take out extrusion screw, use locking screw to bore first through-hole 31, second through-hole 11 and third through-hole 21, locking screw and first through-hole 31, the interior screw-thread fit locking of second through-hole 11 and third through-hole 21, realize fixing.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. A tibial tuberosity fracture piece fixation construct, comprising:
the wrapping structure is suitable for wrapping a tibial nodular fracture block and bone tissues around the fracture block and fixedly connecting the tibial nodular fracture block and the bone tissues around the fracture block through a plurality of screws;
the hook structure is fixedly arranged on the wrapping structure and is suitable for being hooked at the joint of the patellar ligament and the fracture block.
2. The tibial tuberosity fracture fixation construct of claim 1, wherein: the wrapping structure includes:
the arc-shaped wrapping sheet (3) is suitable for wrapping the outer side of the tibial tuberosity fracture in an arc shape and is provided with at least one first through hole (31);
the first side fixing piece (1) is fixedly connected with one side of the arc-shaped wrapping piece (3), extends downwards along the tibia direction for a set length and is provided with at least one second through hole (11);
and the second side fixing piece (2) is fixedly connected with the other side of the arc wrapping piece (3), extends downwards along the tibia direction for a set length, and is provided with at least one third through hole (21).
3. The tibial tuberosity fracture fixation construct of claim 2, wherein: the first side fixing piece (1) and the second side fixing piece (2) are symmetrically arranged.
4. The tibial tuberosity fracture fixation construct of claim 2, wherein: the arc wrapping sheet (3) is of a flexible steel plate structure.
5. The tibial tuberosity fracture fixation construct of claim 2, wherein: the thickness of the arc wrapping sheet (3) is 3-5mm, the width is 1-3cm, the radian is 38-42 degrees, and the arc length is 1.5-3 cm.
6. The tibial tuberosity fracture fixation construct of claim 2, wherein: the thickness of the first side fixing piece (1) and/or the second side fixing piece (2) is 3-5mm, the width is 2-4cm, and the length is 8-15 cm.
7. The tibial tuberosity fracture fixation construct of claim 2, wherein: one end of the first side fixing piece (1) and/or one end of the second side fixing piece (2) far away from the arc wrapping piece (3) are in a pointed tooth structure (4).
8. The tibial tuberosity fracture fixation construct of claim 7, wherein: the angle of the sharp corner of the sharp tooth structure (4) is 30-60 degrees, and the topmost end of the sharp corner is arc-shaped.
9. The tibial tuberosity fracture fixation construct of claim 2, wherein: the hooking structure is at least one hook (5).
10. The tibial tuberosity fracture fixation construct of claim 9, wherein: the hook (5) is fixedly arranged on the arc wrapping sheet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022074199.6U CN213406250U (en) | 2020-09-21 | 2020-09-21 | Tibia tuberosity fracture block fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022074199.6U CN213406250U (en) | 2020-09-21 | 2020-09-21 | Tibia tuberosity fracture block fixing structure |
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| Publication Number | Publication Date |
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| CN213406250U true CN213406250U (en) | 2021-06-11 |
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| CN202022074199.6U Active CN213406250U (en) | 2020-09-21 | 2020-09-21 | Tibia tuberosity fracture block fixing structure |
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