CN215079501U - Intramedullary-steel plate fixation system for distal humerus - Google Patents
Intramedullary-steel plate fixation system for distal humerus Download PDFInfo
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- CN215079501U CN215079501U CN202120102680.3U CN202120102680U CN215079501U CN 215079501 U CN215079501 U CN 215079501U CN 202120102680 U CN202120102680 U CN 202120102680U CN 215079501 U CN215079501 U CN 215079501U
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- plate
- bone
- intramedullary
- humerus
- bone fracture
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- 210000002758 humerus Anatomy 0.000 title claims abstract description 58
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 40
- 239000010959 steel Substances 0.000 title claims abstract description 40
- 208000010392 Bone Fractures Diseases 0.000 claims abstract description 48
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 42
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 238000005452 bending Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 210000000623 ulna Anatomy 0.000 claims description 3
- 210000002979 radial nerve Anatomy 0.000 abstract description 8
- 210000000658 ulnar nerve Anatomy 0.000 abstract description 6
- 208000028389 Nerve injury Diseases 0.000 abstract 1
- 230000008764 nerve damage Effects 0.000 abstract 1
- 206010017076 Fracture Diseases 0.000 description 2
- 230000001054 cortical effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000006670 Multiple fractures Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000002310 elbow joint Anatomy 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 210000002221 olecranon process Anatomy 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model discloses an intramedullary-steel plate fixing system for the distal end of humerus, which consists of an intramedullary nail, a bone fracture plate component and a connecting part between the intramedullary nail and the bone fracture plate component; wherein: two transverse locking holes are respectively and vertically arranged at the position of the intramedullary nail close to the head end; the transverse locking holes are used for inserting and fixing transverse locking nails; the intramedullary nail is inserted into the distal end of the humerus in a retrograde manner, and the hollow cavity is used for penetrating a guide pin; the bone fracture plate assembly is arranged at the far end of the humerus; the bone plate component, the connecting part and the intramedullary nail are designed in an integrated mode. The utility model provides an intramedullary-steel sheet fixing system for humerus distal end, its proximal segment can avoid damaging ulnar nerve and radial nerve damage, and the distal end can effectively fix the humerus condyle again.
Description
Technical Field
The utility model relates to the technical field of orthopedic internal fixation systems, in particular to an intramedullary-steel plate fixation system for the distal end of the humerus.
Background
At present, the bone fracture plate is mainly used for internal fixation for fixing the distal humerus and the internal and external condyle fractures clinically; however, important nerve vessels pass through the elbow joint, particularly the ulnar nerve needs to be exposed on the inner side, and the radial nerve needs to be exposed on the proximal section.
At present, there is no fixing steel plate which can expose ulnar nerve and proximal segment can expose radial nerve, so that there is a strong need to design an intramedullary-steel plate fixing system for distal humerus which overcomes the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the shortcomings in the prior art, and provides an intramedullary-steel plate fixing system for humerus far end, which can avoid damaging ulnar nerve and radial nerve at the near section and effectively fix the humeral condyle part at the far end.
In order to achieve the above object, the present invention mainly provides the following technical solutions:
an intramedullary-steel plate fixation system for the distal humerus,
consists of an intramedullary nail, a bone plate component and a connecting part between the intramedullary nail and the bone plate component; wherein:
two transverse locking holes are respectively and vertically arranged at the position of the intramedullary nail close to the head end; the transverse locking holes are used for inserting and fixing transverse locking nails; the intramedullary nail is inserted into the distal end of the humerus in a retrograde manner, and the hollow cavity is used for penetrating a guide pin;
the bone fracture plate assembly is arranged at the far end of the humerus; the bone plate component, the connecting part and the intramedullary nail are designed in an integrated mode.
Furthermore, the bone plate assembly comprises a first bone plate and a second bone plate;
the first bone fracture plate is arranged on the rear side of one end of the radial side; the second bone fracture plate is arranged on the side of one end of the ruler side;
and a 90-degree solid included angle is formed between the first bone plate and the second bone plate.
Furthermore, the bending quantities of the first bone fracture plate and the second bone fracture plate are respectively the anatomical physiological radians of the radius and the ulna of the human body;
and the first bone fracture plate and the second bone fracture plate are respectively provided with a plurality of transverse wedge-shaped fixed screw holes which are used for screwing locking screws.
Further, the connecting part is flat and the thickness of the connecting part is larger than that of the bone plate component;
the connecting part is integrally connected with the joint of the first bone fracture plate and the second bone fracture plate.
Furthermore, the first bone fracture plate and the second bone fracture plate are both arc-shaped and abduct-shaped and are respectively fixed on the condyles of the humerus; the first bone fracture plate and the second bone fracture plate are both strip-shaped wing-shaped steel plates.
Further, the diameter of the screw hole is 2.7 mm.
Furthermore, the diameter of the intramedullary nail is 6-8mm, and the intramedullary nail is arranged in a hollow way and is used for penetrating a guide pin which is directly 2.0 mm.
Compared with the prior art, the utility model discloses the beneficial effect who produces mainly embodies:
the intramedullary-steel plate fixing system for the far end of the humerus is used for intramedullary fixation of the medullary cavity of the humerus, the two leaf steel plates at the far end fix the condyles at two sides, the proximal section of the intramedullary-steel plate can avoid damaging the ulnar nerve and the radial nerve, and the far end can effectively fix the condyles of the humerus;
the intramedullary-steel plate fixing system for the distal humerus of the utility model has the advantages that the fracture end of the proximal humerus can be inserted into the medullary cavity of the distal humerus in the operation without exposing the radial nerve; the proximal section is fixed by a transverse locking nail; the far end is fixed by a traditional bone fracture plate;
the intramedullary-steel plate fixing system for the distal end of the humerus of the utility model combines the intramedullary nail and the distal locking bone fracture plate, and has the characteristics of simple design and simple and visual operation.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to clearly understand the technical means of the present invention and implement the technical means according to the content of the description, the following detailed description of the preferred embodiments of the present invention is given with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the intramedullary-steel plate fixation system for the distal humerus of the present invention in use;
fig. 2 is a schematic structural view of the intramedullary-steel plate fixation system for the distal humerus of the present invention;
description of the reference numerals
1. Intramedullary nails; 2. a bone plate assembly; 3. a connecting portion;
11. transverse locking holes; 12. transversely locking the nails;
21. a first bone fracture plate; 22. a second bone fracture plate; 23. screw holes; 24. a locking screw;
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the detailed description of the embodiments, structures, features and effects of the intramedullary-steel plate fixation system for distal humerus according to the present invention will be given below with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1 and 2, the intramedullary-steel plate fixation system for the distal end of the humerus of the present invention,
consists of an intramedullary nail 1, a bone fracture plate component 2 and a connecting part 3 between the intramedullary nail and the bone fracture plate component; the whole shape of the utility model is inverted Y-shaped; wherein:
two transverse locking holes 11 are respectively and vertically arranged at the positions of the intramedullary nail 1 close to the head end; the transverse locking holes 11 are used for inserting and fixing transverse locking nails 12; the intramedullary nail 1 is inserted into the humerus in a retrograde manner, and the hollow cavity is used for penetrating a guide pin;
the bone fracture plate component 2 is arranged at the far end of the humerus and is arranged in an inverted V shape; the bone fracture plate component 2, the connecting part 3 and the intramedullary nail 1 are designed into a whole.
The intramedullary-steel plate fixation system for the distal humerus of the embodiments of the present application, during use:
after the distal humerus is reset, an open guide pin is arranged above the olecranon fossa, a hole is expanded on the cortical bone for 6-8mm along the guide pin, and marrow is expanded along the open hole and the proximal medullary cavity;
the intramedullary nail 1 is inserted into a proximal medullary cavity in a retrograde manner, the distal end of the intramedullary nail 1 is always clamped and pressed on the cortical bone, and the bone fracture plates on the two sides are just attached to the inner and outer side condyles of the humerus; installing a held aiming frame, and installing an aiming frame on a locking screw 24 which is arranged on the outer side and the inner side of the proximal humerus; locking screws in different directions are mounted on the bone fracture plates on two sides of the far end;
the intramedullary-steel plate fixing system for the distal humerus of the embodiment of the application is combined with a distal locking bone fracture plate through an intramedullary nail 1; the proximal straight intramedullary nail 1 partially conforms to the fixation principle of the intramedullary nail 1, and the distal end of the intramedullary nail is fixed by a bone fracture plate, thereby solving a plurality of problems of humerus distal end fixation in clinical practice.
The intramedullary-steel plate fixing system for the distal humerus can effectively fix various types of broken bones of the distal humerus, integrally fix and reduce the types of plant placement under the premise of ensuring effectiveness, reduce the incision length in an operation, do not need to expose the radial nerve and the ulnar nerve specially, and play roles in minimally invasive and preventing and treating side damage.
The intramedullary-steel plate fixing system for the distal humerus of the embodiment of the application has the key points that the proximal end does not need to expose the radial nerve, and the intramedullary nail 1 is inserted into a medullary cavity to avoid damage; the incision need not be too large, only distal to the humerus.
As shown in fig. 2, the intramedullary-steel plate fixing system for the distal end of humerus of the present invention, the bone plate assembly 2 includes a first bone plate 21 and a second bone plate 22;
the first bone fracture plate 21 is arranged on the rear side of one end of the radial side; the second bone fracture plate 22 is arranged on the side of one end of the ruler side; and a 90-degree solid included angle is formed between the first bone plate 21 and the second bone plate 22.
As shown in fig. 2, in the intramedullary-steel plate fixation system for the distal end of the humerus of the present invention, the bending amounts of the first bone plate 21 and the second bone plate 22 are the anatomical physiological radians of the radius and the ulna of the human body, respectively; the first bone plate 21 and the second bone plate 22 are respectively provided with a plurality of transverse wedge-shaped fixing screw holes 23, and the screw holes 23 are used for screwing locking screws 24.
In the intramedullary-steel plate fixing system for the distal humerus of the embodiment of the application, the first bone plate 21 and the second bone plate 22 are both arc-shaped and abducted; wherein: the first bone fracture plate 21 is arranged on the rear side of one end of the radial side; the second bone fracture plate 22 is arranged on the side of one end of the ruler side; the first bone fracture plate 21 is changed into an inner side after the inner side wing at the far end of the humerus rotates, the outer side wing is laid on the rear side, a 90-degree three-dimensional structure is formed on the inner side and the outer side, and a plurality of threaded screw holes 23 for transverse wedge-shaped fixing are formed above the inner side wing and the outer side wing and used for screwing locking screws 24;
as shown in fig. 1, the connecting portion 3 of the intramedullary-steel plate fixing system for the distal end of the humerus of the present invention is flat and has a thickness greater than that of the bone plate assembly 2; the connecting part 3 is integrally connected with the joint of the first bone plate 21 and the second bone plate 22.
In the intramedullary-steel plate fixing system for the distal end of the humerus according to the embodiment of the present application, the intramedullary nail 1 is turned into the bone plate assembly 2 below, and the whole intramedullary nail is in an inverted Y shape, so that the connecting portion 3 needs to be flat and thick due to the large stress.
As shown in fig. 2, in the intramedullary-steel plate fixation system for the distal end of the humerus of the present invention, the first bone plate 21 and the second bone plate 22 are both arc-shaped and abducted and are respectively fixed to the condyles of the humerus; the first bone fracture plate 21 and the second bone fracture plate 22 are both strip-shaped wing-shaped steel plates.
As shown in fig. 2, the screw hole 23 of the intramedullary-steel plate fixing system for the distal end of the humerus of the present invention has a diameter of 2.7 mm.
As shown in fig. 1, the intramedullary-steel plate fixation system for the distal end of humerus of the present invention, the intramedullary nail 1 has a diameter of 6-8mm and is hollow for penetrating a guide pin of 2.0 mm.
The present invention has been further described with reference to the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (7)
1. An intramedullary-steel plate fixation system for the distal humerus, comprising:
consists of an intramedullary nail (1), a bone fracture plate component (2) and a connecting part (3) between the intramedullary nail and the bone fracture plate component; wherein:
two transverse locking holes (11) are respectively and vertically arranged at the positions of the intramedullary nail (1) close to the head end; the transverse locking holes (11) are used for inserting and fixing transverse locking nails (12); the intramedullary nail (1) is inserted into the distal end of the humerus in a retrograde manner, and the hollow cavity is used for penetrating a guide pin;
the bone plate component (2) is arranged at the far end of the humerus; the bone plate component (2), the connecting part (3) and the intramedullary nail (1) are designed into a whole.
2. An intramedullary-steel plate fixation system for the distal humerus of claim 1, wherein:
the bone plate assembly (2) comprises a first bone plate (21) and a second bone plate (22);
the first bone fracture plate (21) is arranged on the rear side of one end of the radial side; the second bone fracture plate (22) is arranged on the side of one end of the ruler side;
and a 90-degree solid included angle is formed between the first bone plate (21) and the second bone plate (22).
3. An intramedullary-steel plate fixation system for the distal humerus of claim 2, wherein:
the bending quantities of the first bone plate (21) and the second bone plate (22) are respectively the anatomical physiological radians of the radius and the ulna of the human body;
the bone plate I (21) and the bone plate II (22) are respectively provided with a plurality of transverse wedge-shaped fixed screw holes (23), and the screw holes (23) are used for screwing locking screws (24).
4. An intramedullary-steel plate fixation system for the distal humerus of claim 3, wherein:
the connecting part (3) is flat and the thickness of the connecting part is larger than that of the bone plate component (2);
the connecting part (3) is integrally connected with the joint of the first bone fracture plate (21) and the second bone fracture plate (22).
5. An intramedullary-steel plate fixation system for the distal humerus of claim 4, wherein:
the first bone fracture plate (21) and the second bone fracture plate (22) are both arc-shaped and abducted and are respectively fixed on the condyles of the humerus;
the first bone fracture plate (21) and the second bone fracture plate (22) are both strip-shaped wing-shaped steel plates.
6. An intramedullary-steel plate fixation system for the distal humerus of claim 5, wherein:
the diameter of the screw hole (23) is 2.7 mm.
7. An intramedullary-steel plate fixation system for the distal humerus of claim 1, wherein:
the diameter of the intramedullary nail (1) is 6-8mm, and the intramedullary nail is arranged in a hollow way and is used for penetrating a guide pin which is directly 2.0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120102680.3U CN215079501U (en) | 2021-01-15 | 2021-01-15 | Intramedullary-steel plate fixation system for distal humerus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120102680.3U CN215079501U (en) | 2021-01-15 | 2021-01-15 | Intramedullary-steel plate fixation system for distal humerus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215079501U true CN215079501U (en) | 2021-12-10 |
Family
ID=79323955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120102680.3U Expired - Fee Related CN215079501U (en) | 2021-01-15 | 2021-01-15 | Intramedullary-steel plate fixation system for distal humerus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215079501U (en) |
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2021
- 2021-01-15 CN CN202120102680.3U patent/CN215079501U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211210 |