CN212415870U - Clavicle intramedullary needle convenient to push and fix - Google Patents
Clavicle intramedullary needle convenient to push and fix Download PDFInfo
- Publication number
- CN212415870U CN212415870U CN202020417357.0U CN202020417357U CN212415870U CN 212415870 U CN212415870 U CN 212415870U CN 202020417357 U CN202020417357 U CN 202020417357U CN 212415870 U CN212415870 U CN 212415870U
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- China
- Prior art keywords
- clavicle
- section
- propelling
- locking part
- advancing
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- Expired - Fee Related
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- 210000003109 clavicle Anatomy 0.000 title claims abstract description 51
- 230000002265 prevention Effects 0.000 claims abstract description 13
- 230000007704 transition Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 abstract description 5
- 206010017076 Fracture Diseases 0.000 description 8
- 208000027418 Wounds and injury Diseases 0.000 description 8
- 206010052428 Wound Diseases 0.000 description 7
- 210000000988 bone and bone Anatomy 0.000 description 7
- 208000010392 Bone Fractures Diseases 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 208000006735 Periostitis Diseases 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 210000003460 periosteum Anatomy 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 206010009245 Clavicle fracture Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 108010048734 sclerotin Proteins 0.000 description 2
- 208000000860 Compassion Fatigue Diseases 0.000 description 1
- 208000032170 Congenital Abnormalities Diseases 0.000 description 1
- 206010061619 Deformity Diseases 0.000 description 1
- 208000028389 Nerve injury Diseases 0.000 description 1
- 206010040893 Skin necrosis Diseases 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 210000003461 brachial plexus Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 210000002758 humerus Anatomy 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012567 medical material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008764 nerve damage Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 210000004224 pleura Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000002320 radius Anatomy 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 210000002303 tibia Anatomy 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 210000000623 ulna Anatomy 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Abstract
The utility model discloses a clavicle intramedullary pin which is convenient to push and fix, comprising a pin body and a closed nut, wherein the pin body is in the shape of a cylinder; the needle body is divided into a front-section propelling part, a middle-section anti-rotation part and a rear-section locking part according to the advancing direction, and two ends of the anti-rotation part are connected with the end face of the propelling part and the end face of the locking part and are in transition through inclined planes; the propelling part comprises a cone at the end part and a first spiral thread which is arranged on the surface of the propelling part and is connected with the cone; the section of the rotation prevention part is of a polygonal structure matched with the inner cavity of the clavicle marrow; the locking part comprises a threaded hole located on the end face and a second spiral thread arranged on the surface of the locking part 5, and the threaded hole is matched with the closed nut. The clavicle intramedullary pin is convenient to push, the use of screws is reduced, the fixation is convenient, the steps are simple, the wound is small, and the correction effect is good.
Description
Technical Field
The utility model relates to an automotive equipment technical field, concretely relates to be convenient for impel and fixed intramedullary needle of clavicle.
Background
The intramedullary needle is a special medical instrument used for internally fixing a tubular fracture part in an orthopedic operation, and the conventional intramedullary needle is mainly made of medical stainless steel materials or medical titanium alloys. Intramedullary pin fixation is often used for long bone (such as femur, humerus, ulna, tibia, radius, etc.) shaft fractures. The intramedullary pin has the characteristics of firm and reliable fixation, little or no external fixation after operation, and contribution to early activity exercise of injured limbs; the skin incision is small, the periosteum stripping range is limited, and the injury is small. The intramedullary needle is long and has edges and corners with different shapes, and the intramedullary needle is embedded into the medullary cavity to achieve firm internal fixation, thereby reducing the occurrence of rotation, lateral movement and angular displacement.
As is well known, clavicular fracture is one of the most common fractures, 70% -80% occurring in the outer 1/3 segments of the clavicle, and the current treatment protocol includes: 1. the non-operative manual reduction external fixation treatment comprises 2, operative external fixation, 3, steel plate internal fixation and 4, kirschner wire or intramedullary wire internal fixation.
1. There is increasing evidence that: when the middle clavicle section is treated by non-operation, the incidence of fracture deformity healing and non-healing is high, long-term external fixation is not beneficial to joint exercise, the early life quality is influenced, the pain is large, a lot of patients cannot tolerate the fracture, and the purpose of treatment cannot be achieved.
2. The fixation of the external fixing frame after the operation can reduce periosteum peeling, but certain operation wound still exists, the risk of puncturing pleura exists in the operation process, and the appearance and the daily life are influenced by the external fixing frame after the operation.
3. The fixed great operation incision that needs of steel sheet, the operation wound is big, and periosteum peels off more, destroys the right to fracture position blood circulation, and the fracture is nonunion and interior fixture is not hard up, takes place subclavian blood vessel and brachial plexus nerve damage to and local skin necrosis, infection risk are big, and need be in hospital to carry out secondary operation and take out the steel sheet, and the medical expense is high, and the later stage incision scar influences beautifully in addition.
4. At present, a clavicle multipurpose bone round needle is used as a clavicle intramedullary needle, the length of an operation incision is reduced, periosteum stripping is reduced, but the conventional clavicle intramedullary needle is very hard to advance in a clavicle intramedullary cavity, the extrusion damage to medulla is serious, secondary trauma to the clavicle is easily caused, after the conventional clavicle intramedullary needle is advanced, cancellous bone screws are needed to fix the clavicle intramedullary needle, and the clavicle intramedullary needle has the defects of large trauma, complex structure, complex operation and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be convenient for impel and fixed intramedullary needle of clavicle to solve conventional intramedullary needle of clavicle and impel very hard in the intramedullary intracavity of clavicle, it is more serious to destroy the extrudability that the medulla caused, causes secondary wound to the clavicle very easily, after impelling, still needs cancellous bone screw to fix, the great, the complicated problem of structure of wound.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a clavicle intramedullary needle convenient to push and fix comprises a needle body and a sealing nut, wherein the needle body is in a cylinder shape;
the needle body is divided into a front-section propelling part, a middle-section anti-rotation part and a rear-section locking part according to the advancing direction, and two ends of the anti-rotation part are connected with the end face of the propelling part and the end face of the locking part and are in transition through inclined planes;
the propelling part comprises a cone at the end part and a first spiral thread which is arranged on the surface of the propelling part and is connected with the cone;
the section of the anti-rotation part is of a polygonal structure matched with the inner cavity of the clavicle marrow;
the locking part comprises a threaded hole and a second spiral thread, the threaded hole is located in the end face, the second spiral thread is arranged on the surface of the locking part 5, and the threaded hole is matched with the sealing nut.
The further technical scheme is as follows: the cone is a triangular pyramid, and the tip of the triangular pyramid is subjected to circular arc treatment.
The further technical scheme is as follows: the length of the rotation prevention part is greater than that of the pushing part or the locking part, and the pushing part is consistent with that of the locking part.
The further technical scheme is as follows: the caliber of the rotation prevention part is smaller than the caliber of the propelling part or the locking part, and the calibers of the propelling part and the locking part are consistent.
The further technical scheme is as follows: the sealing nut comprises a threaded section, a sealing section and a cap head, the threaded section is matched with the threaded hole, and the diameter of the sealing section is consistent with the maximum outer diameter of the second spiral thread.
The further technical scheme is as follows: the needle body and the closed screw cap are both processed in a hollow mode.
The further technical scheme is as follows: the rotation-preventing part is a plum blossom pillar, a triangular prism or a flat drum pillar.
Compared with the prior art, the utility model discloses can reach one of following beneficial effect at least:
1. the utility model provides a clavicle intramedullary pin convenient for propulsion and fixation, which greatly reduces the resistance of the needle body in the clavicle through arranging a propulsion part and a locking part with spiral threads at the two ends of the needle body, the end part of the propulsion part is provided with a cone, on one hand, the clavicle medulla is conveniently separated, the resistance is reduced, on the other hand, the damage to the medulla during extrusion can be reduced, meanwhile, the cone can be embedded into the wall of the clavicle inner cavity to achieve the purpose of self-fixing one end, the anti-rotation part in the middle of the needle body can be better matched with the clavicle inner cavity to prevent the needle body from rotating, the sealing nut is screwed at the outer end of the locking part, meanwhile, the utility model is pressed tightly on the bone surface of the clavicle and is matched with the needle body together to achieve the purpose of clavicle fracture correction, the clavicle intramedullary pin is convenient to push, the use of screws is reduced, the fixation is convenient, the steps are simple, the wound is small, and the correction effect is good.
2. The cone sets up to the triangular pyramid, and the tip of triangular pyramid carries out the circular arc and handles, and the cone of triangular pyramid is convenient for impel and cooperate with the clavicle bone wall, and the circular arc is handled in order to reduce the wearing and tearing to the sclerotin, and the equal cavity of needle body and lock nut is handled, and under the prerequisite that satisfies intensity, weight reduction reduces the use burden to the patient.
Drawings
Fig. 1 is a schematic structural view of a clavicle intramedullary pin of the present invention, which is convenient for pushing and fixing.
Fig. 2 is a schematic structural view of the intramedullary nail shown in fig. 1 according to the present invention.
Fig. 3 is an enlarged schematic structural view of a in fig. 1 according to the present invention.
Reference numerals: 1. a needle body; 2. a sealing nut; 3. a propelling part; 4. a rotation prevention section; 5. a locking portion; 6. a cone.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
the needle body 1 is divided into a front-section propelling part 3, a middle-section anti-rotation part 4 and a rear-section locking part 5 according to the advancing direction, and two ends of the anti-rotation part 4 are connected with the end face of the propelling part 3 and the end face of the locking part 5 and are in transition through inclined planes;
the propelling part 3 comprises a cone 6 at the end part and a first spiral thread which is arranged on the surface of the propelling part 3 and is connected with the cone 6;
the section of the anti-rotation part 4 is of a polygonal structure matched with the inner cavity of the clavicle marrow;
the locking part 5 comprises a threaded hole 8 located in the end face and a second spiral thread arranged on the surface of the locking part 5, and the threaded hole 8 is matched with the closed nut 2.
The utility model provides a clavicle intramedullary needle principle of use convenient to impel and fix: a pushing inlet (with internal threads) and an intramedullary channel are drilled on a fractured clavicle through an auxiliary medical tool (a bone drill), an embedding hole is left on the clavicle wall at the end of the channel, a traction hole is arranged on the embedding hole, one end of an auxiliary rod is arranged outside the pushing inlet, the other end of the auxiliary rod penetrates out of the traction hole, a notch is arranged at the end part of the auxiliary rod, a cone 6 at the end part of a needle body 1 is abutted against the notch of the auxiliary rod, the needle body 1 is pushed into the intramedullary channel through the pushing tool, the cone 6 on a pushing part 3 is used for conveniently separating medulla in the clavicle and reducing resistance, the damage to the medulla during extrusion can be reduced, meanwhile, the cone 6 can also be embedded into the embedding hole on the inner cavity wall of the clavicle, the embedding hole is filled and sealed through a conventional medical material, the purpose of self-fixing one end is achieved, a polygonal structure of an anti-rotation part 4 in the middle part, prevent that needle body 1 from rotating, help needle body 1 that first spiral line on the propulsion portion 3 and the second spiral line on the locking portion 5 can be fine moves in the clavicle medullary cavity, 2 spiro unions of blind nut are in the screw hole 8 of 5 outer ends of locking portion, and the spiral shell is tight on advancing the entry, compress tightly on the bone surface of clavicle simultaneously, cooperate together with needle body 1, reach the purpose that the clavicle fracture was rescued, this clavicle intramedullary needle conveniently advances, reduce the use of screw, it is convenient fixed, simple steps, the wound is less, correct respond well.
Further, the rotation prevention part 4 is a plum blossom pillar, a triangular prism or a flat drum pillar. On one hand, the contact area of the rotation prevention part 4 and medulla is increased, the stability is increased, and on the other hand, the rotation prevention part is more matched with the shape of a marrow cavity of the clavicle.
The two ends of the rotation prevention part 4 are connected with the end surface of the pushing part 3 and the end surface of the locking part 5 through inclined surface transition, so that the rotation prevention part is pushed in better and the damage to medulla is reduced.
Example 2:
on the basis of the above embodiment 1, embodiment 2 shows an embodiment in which the pyramid 6 is a triangular pyramid whose tip is subjected to a circular arc treatment.
The cone 6 is a triangular pyramid, the tip of the triangular pyramid is subjected to circular arc treatment, the triangular pyramid-shaped cone 6 is convenient to push and is matched with the clavicle wall, and the circular arc treatment is used for reducing the abrasion to sclerotin.
Example 3:
on the basis of the above embodiment, embodiment 3 shows an embodiment in which the length of the rotation preventing portion 4 is greater than the length of the pushing portion 3 or the locking portion 5, and the length of the pushing portion 3 is the same as the length of the locking portion 5.
Furthermore, the caliber of the rotation prevention part 4 is smaller than the caliber of the propelling part 3 or the locking part 5, and the calibers of the propelling part 3 and the locking part 5 are consistent.
The shorter and the diameter that the length of propulsion portion 3 and locking portion 5 set up sets up is less, prevents that 4 length of commentaries on classics sets up longer and the diameter setting is less, is in order to reduce the extrusion of needle body 1 to medulla and destroys, and the push-in passageway and the entry that set up also can be little, reduces the wound, also is convenient for impel, prevents that 4 of commentaries on classics portion are longer, prevents that the commentaries on classics effect is better.
Example 4:
on the basis of the above embodiment, embodiment 4 shows an embodiment in which the closure nut 2 includes a threaded section, a sealing section and a cap head, the threaded section is fitted with the threaded hole, and the sealing section has a diameter corresponding to the maximum outer diameter of the second spiral thread.
The thread section of the closed nut 2 is connected with the thread hole of the needle body 1, when the closed nut is connected, the needle body 1 is fixed by the matching between the cone body 1 and the auxiliary rod notch, and the sealing section is used for sealing the pushing inlet on the clavicle.
Example 5:
on the basis of the above embodiment, the embodiment 5 shows an embodiment in which both the needle body 1 and the blind nut 2 are hollow.
The needle body 1 and the closed nut 2 are both processed in a hollow mode, so that the weight is reduced and the use burden on a patient is reduced on the premise of meeting the strength.
The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (7)
1. A convenient advance and fixed intramedullary pin of collar-bone, its characterized in that: the needle comprises a needle body (1) and a sealing nut (2), wherein the needle body (1) is in a cylinder shape;
the needle body (1) is divided into a front-section propelling part (3), a middle-section anti-rotation part (4) and a rear-section locking part (5) according to the advancing direction, and two ends of the anti-rotation part (4) are connected with the end face of the propelling part (3) and the end face of the locking part (5) and are in transition through an inclined plane;
the propelling part (3) comprises a cone (6) at the end part and a first spiral thread which is arranged on the surface of the propelling part (3) and is connected with the cone (6);
the section of the anti-rotation part (4) is of a polygonal structure matched with the inner cavity of the clavicle marrow;
the locking part (5) comprises a threaded hole located in the end face and a second spiral thread arranged on the surface of the locking part (5), and the threaded hole is matched with the closed nut (2).
2. The intramedullary nail of the clavicle which facilitates the advancing and the fixing according to claim 1, wherein: the cone (6) is a triangular pyramid, and the tip of the triangular pyramid is subjected to circular arc treatment.
3. The intramedullary nail of the clavicle which facilitates the advancing and the fixing according to claim 1, wherein: the length of the rotation prevention part (4) is larger than that of the pushing part (3) or the locking part (5), and the pushing part (3) is consistent with that of the locking part (5).
4. The intramedullary nail of the clavicle which facilitates the advancing and the fixing according to claim 1, wherein: the caliber of the rotation prevention part (4) is smaller than the caliber of the propelling part (3) or the locking part (5), and the calibers of the propelling part (3) and the locking part (5) are consistent.
5. The intramedullary nail of the clavicle which facilitates the advancing and the fixing according to claim 1, wherein: the closed screw cap (2) comprises a screw thread section, a sealing section and a cap head, the screw thread section is matched with the screw thread hole, and the diameter of the sealing section is consistent with the maximum outer diameter of the second spiral thread.
6. The intramedullary nail of the clavicle which facilitates the advancing and the fixing according to claim 1, wherein: the needle body (1) and the closed screw cap (2) are both processed in a hollow mode.
7. The intramedullary nail of the clavicle which facilitates the advancing and the fixing according to claim 1, wherein: the rotation prevention part (4) is a plum blossom pillar, a triangular prism or a flat drum pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020417357.0U CN212415870U (en) | 2020-03-27 | 2020-03-27 | Clavicle intramedullary needle convenient to push and fix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020417357.0U CN212415870U (en) | 2020-03-27 | 2020-03-27 | Clavicle intramedullary needle convenient to push and fix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212415870U true CN212415870U (en) | 2021-01-29 |
Family
ID=74292675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020417357.0U Expired - Fee Related CN212415870U (en) | 2020-03-27 | 2020-03-27 | Clavicle intramedullary needle convenient to push and fix |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212415870U (en) |
-
2020
- 2020-03-27 CN CN202020417357.0U patent/CN212415870U/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 |
Granted publication date: 20210129 |
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| CF01 | Termination of patent right due to non-payment of annual fee |