CN217886176U - Inner support steel plate for humerus proximal marrow - Google Patents
Inner support steel plate for humerus proximal marrow Download PDFInfo
- Publication number
- CN217886176U CN217886176U CN202221419535.9U CN202221419535U CN217886176U CN 217886176 U CN217886176 U CN 217886176U CN 202221419535 U CN202221419535 U CN 202221419535U CN 217886176 U CN217886176 U CN 217886176U
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- China
- Prior art keywords
- head
- humerus
- intramedullary
- steel plate
- proximal
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- Expired - Fee Related
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- 210000002758 humerus Anatomy 0.000 title claims abstract description 53
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 32
- 239000010959 steel Substances 0.000 title claims abstract description 32
- 230000007704 transition Effects 0.000 claims abstract description 32
- 238000002224 dissection Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 208000001132 Osteoporosis Diseases 0.000 abstract description 6
- 210000004095 humeral head Anatomy 0.000 abstract description 4
- 230000002980 postoperative effect Effects 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 3
- 230000017074 necrotic cell death Effects 0.000 abstract description 3
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 210000004204 blood vessel Anatomy 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 210000005036 nerve Anatomy 0.000 abstract description 2
- 210000000988 bone and bone Anatomy 0.000 description 12
- 206010017076 Fracture Diseases 0.000 description 7
- 208000010392 Bone Fractures Diseases 0.000 description 5
- 239000002639 bone cement Substances 0.000 description 5
- 239000012634 fragment Substances 0.000 description 3
- 208000024779 Comminuted Fractures Diseases 0.000 description 2
- 206010020462 Humerus fracture Diseases 0.000 description 2
- 230000000735 allogeneic effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 206010020649 Hyperkeratosis Diseases 0.000 description 1
- 208000029725 Metabolic bone disease Diseases 0.000 description 1
- 206010049088 Osteopenia Diseases 0.000 description 1
- 241000469816 Varus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 210000002302 brachial artery Anatomy 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
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- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The utility model provides a support steel plate in humerus near-end intramedullary, including head, transition portion, intramedullary portion, the head is the edge for half circular shape structure, and the cross section is similar to the inverted triangle structure, and the head has a plurality of holes of preventing revolving. The lower end of the head is connected with a transition part, the transition part is connected with the inside of the marrow and is integrally formed, the transition part is matched with the anatomical form of the proximal humerus distance of the proximal humerus, the rear parts of the side surfaces of the head and the transition part are provided with a protrusion which runs along the outline of a steel plate to form a ridge-shaped structure, the inside of the marrow is of a cylindrical structure, and the lower end of the inside of the marrow is provided with three transverse non-through jacking holes at intervals. The transition part is jointed with the anatomical form of the proximal humerus medial humerus distance, so that the proximal humerus medial side is supported powerfully, the lateral rear parts of the head and the transition part are protruded to form a ridge-shaped structure, the reconstruction of the medial column of the proximal humerus distance is facilitated, the biomechanics is better met, the fixing strength is higher, and the incidence rate of postoperative humerus inversion, restoration loss and humeral head necrosis of osteoporosis patients is further reduced. Meanwhile, an inner side supporting steel plate is not arranged on the inner side of the proximal humerus, so that the injury of nerves and blood vessels can be effectively avoided, and the pain of a patient is relieved.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to intramedullary supporting steel plate of humerus near-end.
Background
The proximal humeral unstable fracture refers to comminuted fracture including a surgical humeral neck and parts above the surgical humeral neck, and the inner support steel plate of the proximal humeral intramedullary is a built-in fixture for treating the proximal humeral unstable fracture. Unstable fractures of the proximal humerus are common in elderly people with osteoporosis, and are usually referred to as proximal comminuted fractures of the humerus, especially comminuted medial cortex, which is often accompanied by osteoporosis and medial bone defects. In recent years, locking steel plates have been used by more and more physicians for the treatment of unstable fractures of the proximal humerus because of their good stability, support ability and conformity to the proximal humerus. However, patients often have osteopenia or osteoporosis, which results in loss of medial column support and therefore fails to provide a strong anchor point for the screw, resulting in a high incidence of complications such as varus, loss of reduction, and screw resection (13.7-28.9%). A great deal of research finds that maintaining the proximal medial column support of the humerus during the operation can effectively reduce the occurrence of related complications after the proximal humerus fracture operation, so that the need of medial support while the proximal locking steel plate is fixed for the proximal unstable fracture of the humerus has become common knowledge. Currently, the commonly used inner side supporting method comprises the following steps: autologous bone grafting, allogeneic bone grafting, bone cement filling and inner steel plate supporting. It has problems as follows: 1) Autologous bone grafting can increase the operation time and the amount of bleeding, and can also increase the operative complications at the bone-taking part; 2) The fracture is common to the elderly with osteoporosis, and the strength of autogenous bones is low; 3) Before the allogeneic bone is implanted, the bone needs to be shaped, and the strength is lower; 4) The supporting strength provided by the bone cement is not as good as that of bone transplantation, and the risk of seepage and degradation is possible, so that other complications are caused; 5) The medial buttress plate operation may damage the anterior brachial artery, resulting in postoperative humeral head necrosis, and more dissection and separation of normal tissues, which is not conducive to postoperative recovery. Therefore, the original internal fixation material cannot meet the current need of innovation.
Disclosure of Invention
The above-mentioned problem to prior art exists, the utility model aims at providing an support steel sheet in the marrow of humerus proximal end more accords with biomechanics, and fixed strength is high moreover, has solved current humerus proximal end and has supported technical strength low and need mould the type scheduling problem.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
the utility model provides a support steel plate in proximal humerus intramedullary, its characterized in that: including head (1), transition portion (2), marrow inside (3), the head is the edge and is the semicircle form, and the cross section is similar to the inverted triangle structure, and the head has a plurality of holes (101) of preventing revolving, the transition portion is connected to the head lower extreme, the inside integrated into one piece of transition portion connection marrow, the anatomical form phase-match of transition portion and the inboard humerus distance of humerus proximal end, there is one to walk the protrusion of walking along the steel sheet profile and become ridge column structure (102, 201) head and transition portion's side rear portion, and the marrow inside is a cylindrical structure, and the interval of the inside lower extreme of marrow is equipped with three horizontal impenetrable roof pressure hole (301).
Further, the lateral posterior portions of the head and transition portion protrude in a ridge-like configuration.
Further, the cross section of the head part is approximately in an inverted triangle, and each corner of the head part is a round angle.
Furthermore, the head anti-rotation holes are arranged in a circular shape at equal intervals and have no threads inside.
Further, it is characterized in that the transition part is a structure that the transition part is a triangular prism and is converted into a cylinder, thereby being beneficial to penetrating into the medullary cavity of the humerus.
Furthermore, the marrow is internally of a cylindrical structure, and the lower end of the marrow is provided with three cylindrical and non-permeable jacking holes.
Compared with the prior art, the invention has the following advantages: fills the blank of the intramedullary steel plate of the proximal humerus. The humerus intramedullary support steel plate is mainly used for treating proximal humerus fracture of the old. The transition part is connected with the inside of the marrow and the head is integrally formed, the transition part is attached to the anatomical form of the proximal humerus inside the proximal humerus, the proximal humerus inside is supported strongly, the side rear parts of the head and the transition part are protruded to form a ridged structure, the reconstruction of the medial column of the proximal humerus is facilitated, the biomechanics is more met, the fixing strength is higher, and the incidence rate of postoperative humerus inversion, restoration loss and humeral head necrosis of an osteoporosis patient is further reduced. Meanwhile, an inner side supporting steel plate is not arranged on the inner side of the proximal humerus, so that the injury of nerves and blood vessels can be effectively avoided, and the pain of a patient is relieved.
Drawings
FIG. 1: a front view of the intramedullary support steel plate at the proximal humerus;
FIG. 2: a left anterior view of the intramedullary support plate of the proximal humerus;
FIG. 3: a right anterior view of the intramedullary support plate of the proximal humerus;
FIG. 4 is a schematic view of: a left view of the intramedullary support plate at the proximal humerus;
FIG. 5 is a schematic view of: right view of the intramedullary support plate of the proximal humerus.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 5, the present solution provides an intramedullary support steel plate for the proximal humerus, which is characterized in that: including head (1), transition portion (2), marrow inside (3), the head is the semicircle form for the edge, and the cross section is similar to the inverted triangle structure, and the head has a plurality of holes (101) of preventing revolving, the transition portion is connected to the head lower extreme, the inside integrated into one piece of marrow is connected to the transition portion, the transition portion matches with the dissection form of the inboard humerus distance of humerus proximal end, there is one to walk the protruding ridge column structure () of walking along the steel sheet profile in the side rear portion of head and transition portion, and the marrow is inside to be a cylindrical structure, and the inside lower extreme of marrow separates to be equipped with three horizontal impenetrable roof pressure hole.
In this embodiment, the lateral rear portions of the head and the transition portion protrude to form a ridge-shaped structure, which is intended to facilitate bone grafting from above by an operator after implantation, and can effectively support the implanted bone fragments, prevent the bone fragments from falling behind the humerus, so that the implanted bone fragments grow into a whole along with callus formation and fracture healing, and finally rebuild the medial column of the humerus, thereby further playing a role of medial support. The cross section of the head part is approximately in an inverted triangle, and each corner of the head part is a round angle. Thereby softening soft tissues and reducing the influence on blood supply of the humeral head. The head anti-rotation holes are arranged in a circular shape at equal intervals, have no threads in the inner part and need to be matched with bone cement for combined use. Specifically, after the intramedullary supporting steel plate is placed, bone cement is implanted, and the bone cement enters the anti-rotation hole to play a role in fixing the intramedullary supporting steel plate (preventing rotation and preventing up-down movement).
In this embodiment, the transition portion is the structure that the triangular prism transition is the cylinder, matches with the anatomical form of the medial humerus distance of the humerus proximal end to more accord with biomechanics, the fixed intensity is higher. The intramedullary part is of a cylindrical structure, so that the intramedullary part can be conveniently placed in a humerus medullary cavity, three cylindrical and non-permeable jacking holes are formed in the lower end of the intramedullary part, and the intramedullary part needs to be combined with a lateral humerus dissection steel plate for combined use. Specifically, when the humerus lateral dissection steel plate is placed, the distal locking screw needs to be sleeved into the jacking hole of the intramedullary steel plate while being placed into the humerus lateral dissection steel plate. The intramedullary supporting steel plate has the advantages that firstly, the intramedullary supporting steel plate can be tightly attached to the inner side wall of the humerus; and secondly, the intramedullary steel plate has the fixing effects of preventing rotation and preventing up-and-down movement.
Claims (5)
1. An intramedullary support steel plate for the proximal humerus is characterized in that: including head, transition portion, intramedullary portion, the head is the edge and is the semicircle form, and the cross section is similar to the structure of falling triangle-shaped, and the head has a plurality of anti-rotation holes, the transition portion is connected to the head lower extreme, the inside integrated into one piece of intramedullary is connected to the transition portion, the transition portion matches with the dissection form of the inboard humerus distance of humerus proximal end, there is one to walk the protruding grooving structure of walking along the steel sheet profile in the side rear portion of head and transition portion, and intramedullary portion is a cylindrical structure, and intramedullary portion lower extreme separates to be equipped with three horizontal impenetrable roof pressure hole.
2. The intramedullary support plate of claim 1, wherein the head has a cross-section approximating an inverted triangle, each corner of the head being rounded.
3. The intramedullary support steel plate of claim 1, wherein the head rotation preventing holes are arranged in a circular and equidistant manner and have no internal thread.
4. The intramedullary support plate of claim 1, wherein the transition portion is a triangular prism to cylindrical structure.
5. The intramedullary support steel plate for the proximal humerus according to claim 1, wherein the intramedullary part has a cylindrical structure and three cylindrical, non-penetrating apical holes are formed at the lower end thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221419535.9U CN217886176U (en) | 2022-06-08 | 2022-06-08 | Inner support steel plate for humerus proximal marrow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221419535.9U CN217886176U (en) | 2022-06-08 | 2022-06-08 | Inner support steel plate for humerus proximal marrow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217886176U true CN217886176U (en) | 2022-11-25 |
Family
ID=84130669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221419535.9U Expired - Fee Related CN217886176U (en) | 2022-06-08 | 2022-06-08 | Inner support steel plate for humerus proximal marrow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217886176U (en) |
-
2022
- 2022-06-08 CN CN202221419535.9U patent/CN217886176U/en not_active Expired - Fee Related
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Legal Events
| 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: 20221125 |