CN204121146U - A kind of proximal humerus fixture - Google Patents
A kind of proximal humerus fixture Download PDFInfo
- Publication number
- CN204121146U CN204121146U CN201420397242.4U CN201420397242U CN204121146U CN 204121146 U CN204121146 U CN 204121146U CN 201420397242 U CN201420397242 U CN 201420397242U CN 204121146 U CN204121146 U CN 204121146U
- Authority
- CN
- China
- Prior art keywords
- humerus
- contact site
- holder
- nail
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000002758 humerus Anatomy 0.000 title claims abstract description 74
- 239000000463 material Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- 206010023204 Joint dislocation Diseases 0.000 abstract 1
- 208000010392 Bone Fractures Diseases 0.000 description 10
- 206010017076 Fracture Diseases 0.000 description 10
- 208000002103 Shoulder Fractures Diseases 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 210000000323 shoulder joint Anatomy 0.000 description 7
- 230000006378 damage Effects 0.000 description 5
- 208000024779 Comminuted Fractures Diseases 0.000 description 4
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 208000001132 Osteoporosis Diseases 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 241001653121 Glenoides Species 0.000 description 1
- 208000007981 Humeral Fractures Diseases 0.000 description 1
- 206010020462 Humerus fracture Diseases 0.000 description 1
- 241000469816 Varus Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 210000001185 bone marrow Anatomy 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 210000002310 elbow joint Anatomy 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000008407 joint function Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 210000002976 pectoralis muscle Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 210000001991 scapula Anatomy 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
Landscapes
- Prostheses (AREA)
Abstract
The utility model discloses a kind of proximal humerus fixture, this fixture comprises: holder, main nail, anti-rotation nail, locking nail; Holder is arranged in the pulp cavity of proximal humerus, matches with proximal humerus pulp cavity; The upper end of holder comprises the first contact site and the second contact site; Described first contact site contacts with head of humerus, and the first contact site is planar structure; Described second contact site contacts with greater tubercles of humerus, and the second contact site is projecting shape; The far-end of the bottom of described holder is bullet shaped, and the bottom of holder does not contact with pulp cavity; Main nail is used for fixing described head of humerus and described first contact site; The head of described anti-rotation nail enters in head of humerus, and its afterbody is fixedly connected with described holder; Described locking nail is arranged at the bottom of described holder, is connected for being fixed with humeral shaft by described holder.This utility model merges or nonjoinder dislocation of shoulder for proximal humerus serious splintered fracture, and fixation for treatment is effective, operation risk is little.
Description
Technical field
This utility model belongs to medical instruments field, relates in particular to a kind of proximal humerus fixture.
Background technology
Proximal humeral fracture refers to the fracture at the above position of greater tubercles of humerus, and it accounts for 4% ~ 5% of whole body fracture, accounts for 26% of shoulder fractures.Because proximal humeral fracture is multiple, therefore for its treatment, fixing and patient's post-operative recovery is extremely important, to avoid as patient leaves secret worry.In addition, proximal humeral fracture is common in middle-aged and elderly people, and because middle-aged and elderly people is all associated with serious osteoporosis usually, easy comminuted fracture, therefore proximal humerus lacks effective medial support.When being fixed the humeral fracture position of this kind of crowd, often encounter the problems such as screw hold is not enough, shortage effective inner side mechanical support; In the long term, the patient after treatment often occurs that head of humerus varus and screw cut out the phenomenon that head of humerus enters joint, has a strong impact on the shoulder joint function of patient, and therefore, treatment is got up very thorny.
At present, the means treatment proximal humeral fracture masters such as locking steel plate, half shoulder displacement and Intramedullary nailing be passed through.
Locking steel plate is made moderate progress by lock screw technology, the fixed effect of cross lock technology to fracture site, but is still lacked effective medial support, and has screw to enter the risk in joint.Half shoulder displacement easily causes greater tubercles of humerus poor healing or absorption, and this can cause losing the effective arm of force of shoulder sleeve function, to shoulder joint flexing and abduction function effect larger.Although Intramedullary nailing can effectively solve medial support problem, screw is fixedly limited to head of humerus, lacks stable fixing, the Effective Mechanical Properties of shoulder joint early functional exercise can not be provided to support for serious comminuted fracture.In addition the implantation of intramedullary pin needs to drill to make into point, and intramedullary pin does not obviously mate with the internal structure of pulp cavity, can impact blood fortune in marrow.
Therefore, although prior art has multiple solution for the fixation for treatment after proximal humeral fracture, fixed effect is not good enough, and the generation especially for comminuted fracture cannot carry out strong medial support, and is unfavorable for the post-operative recovery of patient.
Utility model content
Limited to proximal humeral fracture medial support in prior art, not good and be unfavorable for the defects such as shoulder joint restore funcitons for comminuted fracture therapeutic effect in order to solve, this utility model provides a kind of proximal humerus fixture.
According to an aspect of the present utility model, provide a kind of proximal humerus fixture, described fixture comprises: holder, main nail, anti-rotation nail, locking nail;
Described holder is arranged in the pulp cavity of proximal humerus, matches with proximal humerus pulp cavity;
The upper end of described holder comprises the first contact site and the second contact site; Described first contact site contacts with head of humerus, and described first contact site is planar structure;
Described second contact site contacts with greater tubercles of humerus, and described second contact site is projecting shape;
The far-end of the bottom of described holder is bullet shaped, and the bottom of described holder does not contact with pulp cavity;
Described main nail is used for fixing described head of humerus and described first contact site;
The head of described anti-rotation nail enters in head of humerus, and its afterbody is fixedly connected with described holder;
Described locking nail is arranged at the bottom of described holder, is connected for being fixed with humeral shaft by described holder.
According to a detailed description of the invention of the present utility model, described holder surface is provided with groove.
According to another detailed description of the invention of the present utility model, described second contact site is provided with side opening.
According to another detailed description of the invention of the present utility model, described first contact site and pulp cavity are 45 ° ~ 50 ° and arrange.
According to another detailed description of the invention of the present utility model, described anti-rotation nail is set to 3.
According to another detailed description of the invention of the present utility model, the afterbody of described anti-rotation nail adopts nut and described holder to be fixed setting.
According to another detailed description of the invention of the present utility model, described main nail, described anti-rotation nail and/or described locking nail adopt guider to position setting.
According to another detailed description of the invention of the present utility model, the material manufacturing described holder comprises: metal material or absorbable material.
According to another detailed description of the invention of the present utility model, described metal material comprises: titanium alloy, rustless steel, tantalum and/or memorial alloy.
According to another detailed description of the invention of the present utility model, the length of described holder is 3cm ~ 20cm.
The proximal humerus fixture that this utility model provides is placed in proximal humerus pulp cavity, achieves the effective support to head of humerus.The upper end of this holder has the first contact site of planar structure and the second contact site of protuberance character; These two positions can respectively with head of humerus and trochiterian structure matching, effective support is played to proximal humeral fracture position.The far-end of the bottom of holder is that bullet shaped distally extends, and does not expand marrow, can reduce the destruction to pulp cavity blood fortune.Main nail, anti-rotation nail and locking nail are combined with holder, can strengthen, to the fixed support of the nearly section fracture site of humerus, preventing displacement of retainer, slippage.This fixture bed knife is strong, do not have screw to enter the risk in joint, greater tubercles of humerus can not be caused to heal complete, Effective Mechanical Properties can be provided to support for shoulder joint early functional exercise.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, other features, objects and advantages of the present utility model will become more obvious:
The structural representation of a detailed description of the invention of a kind of proximal humerus fixture provided according to this utility model is provided;
The top view of a kind of proximal humerus fixture first contact site provided according to this utility model is provided.
In accompanying drawing, same or analogous Reference numeral represents same or analogous parts.
Reference numeral:
| 1 | Holder | 11 | First contact site |
| 12 | Second contact site | 13 | Bottom |
| 2 | Main nail | 3 | Anti-rotation nail |
| 4 | Locking nail | ? | ? |
Detailed description of the invention
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present utility model.Of the present utility model open in order to simplify, hereinafter the parts of specific examples and setting are described.In addition, this utility model can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.It should be noted that parts illustrated in the accompanying drawings are not necessarily drawn in proportion.This utility model eliminates the description of known assemblies and treatment technology and process to avoid unnecessarily limiting this utility model.
With reference to figure 1, Figure 1 shows that the structural representation of a detailed description of the invention of a kind of proximal humerus fixture provided according to this utility model.
Described fixture comprises: holder 1, main nail 2, anti-rotation nail 3, locking nail 4.In use, described holder 1 is arranged in the pulp cavity of proximal humerus, matches with proximal humerus pulp cavity.In order to reduce the destruction to pulp cavity blood fortune, so be provided with groove on the surface of holder 1.
The upper end of described holder 1 comprises the first contact site 11 and the second contact site 12; Described first contact site 11 contacts with head of humerus, for support head of humerus.Described first contact site 11 is planar structure, to have larger contact area with head of humerus.In order to support head of humerus better, and be placed in securely in pulp cavity, preferably described first contact site 11 is elliptic plane.According to the position of head of humerus on humerus and the physiological structure relation of head of humerus and pulp cavity, the first contact site 11 is arranged at an angle with pulp cavity, reach best to make supporting force.Preferably, this angle is 45 ° ~ 50 °, such as: 45 °, 48 ° or 50 °.
Described second contact site 12 contacts with greater tubercles of humerus, and in order to match with trochiterian structure, described second contact site 12 is in projecting shape.Preferably, described second contact site 12 is provided with side opening, when needs suture is fixed, realizes by this side opening.
The far-end of the bottom of described holder 1 is bullet shaped, does not contact with pulp cavity, and airflow design reduces the sharp-pointed contact to pulp cavity, avoids stress concentrations, decreases the destruction to bone marrow in pulp cavity.
Preferably, the material manufacturing described holder 1 comprises: metal material or absorbable material.Wherein, metal material includes but not limited to: titanium alloy, rustless steel, tantalum and/or memorial alloy.When adopting memorial alloy, the external implantation of holder 1, under body temperature, after rewarming, filling proximal humerus pulp cavity realizes the support to head of humerus.
Preferably, according to the difference using the height of crowd, bone length, humerus state and degree of fracture, osteoporosis degree etc., the length of holder 1 is not identical yet, preferably, the length of described holder 1 is 3cm ~ 20cm, such as: 3cm, 10cm or 20cm.According to the physiological situation of usual patient, the length of holder 1 is preferably 8cm.
Described main nail 2 is for fixing described head of humerus and described first contact site 11.Head of humerus is drawn to move on the first contact site 11 of holder 1.
The head of described anti-rotation nail 3 enters in head of humerus, and its afterbody is fixedly connected with described holder 1.Preferably, the afterbody of described anti-rotation nail 3 adopts nut and described holder 1 to be fixed setting.Anti-rotation nail 3 plays the effect of fixing head of humerus, and head of humerus is not rotated on the first contact site 11 of holder 1.Because the stability of triangular structure is the highest, therefore described anti-rotation nail 3 is set to 3, and its arrangement is preferably triangle.With reference to figure 2, more preferably, the leg-of-mutton center making main nail 2 be positioned at anti-rotation nail 3 to form.Anti-rotation nail 3 nail does not have screw thread, allows head of humerus to partially absorb.After head of humerus partially absorbs, the contact of head of humerus and the first contact site 11 will be more tight, and holder is also just better for the support effect of fracture portions.The length of anti-rotation nail 3 is different according to status of patient difference, is advisable not penetrate joint.
Described locking nail 4 is arranged at the bottom of described holder 1, is connected for being fixed with humeral shaft by described holder 1.
In order to reduce the destruction to pulp cavity blood fortune, making holder 1 contact pulp cavity simultaneously and realizing stable fixing, the cross section setting triangular in shape of the near-end of described holder 1.It should be noted that the near-end of described holder 1 refers to: the part between the locking nail 4 and the first contact site 11 of holder 1 upper end.
Preferably, for the ease of the accurate location for various nail in operation technique, described main nail 2, described anti-rotation nail 3 and/or described locking nail 4 all adopt guider to position setting.
Preferably, the fixture that this utility model provides can also with marrow external fixer conbined usage, strengthen fixed effect further.
When the fixture that reality uses this utility model to provide, patient be allowed to be beach chair position or horizontal position, carry out routine disinfection paving aseptic towel list; Afterwards, triangular muscle greater pectoral muscle inter-drain approach, manifests patient's proximal humeral fracture position.
After fracture site exposes, what start fixture inserts operation.First, insert distraction forcep in fracture gap (namely between head of humerus and humeral shaft) to strut, recover the length inside proximal humerus, on Scapula glenoid, (keep proximal humerus collodiaphyseal angle between 130 ° ~ 150 °) with the temporary fixed head of humerus of Kirschner wire; Then, raise large lesser tubercle sclerite, be pulled outwardly humeral shaft, expose proximal humerus pulp cavity; Afterwards, keep elbow joint forward, fixture is tilted backwards 20 ° ~ 40 °, insert in marrow and dissect fixture to being applicable to the degree of depth, reseting fracture; Head of humerus and the first contact site 11 close contact is made under fluoroscopic monitoring; Insert main nail 2 by the outer guider of marrow be connected in fixture 1, draw head of humerus and the first contact site 11 close contact; Anti-rotation nail 3 is inserted subsequently by guider, and the locking nail 4 (steel plate and humeral shaft are linked together) of fixture 1 far-end; After main nail 2, anti-rotation nail 3 and locking nail 4 are all inserted, remove the outer guider of marrow; Finally by large lesser tubercle by tension band mode nonabsorable suture or fixation with steel wire on main nail 2 or the second contact site 12.Because the second contact site 12 is provided with side opening, suture or fixation with steel wire realize by observing and controlling, and fixed effect is better.
The fixture that this utility model provides, by directly entering pulp cavity between the large lesser tubercle of fracture, matches with proximal humerus pulp cavity, the first contact site 11 support head of humerus at an angle, the protuberance support greater tubercle of the second contact site 12; Realize the fixing of head of humerus by main nail 2 and anti-rotation nail 3 and prevent revolving.The conduction of main nail 2 bearing capacity, allows main nail 2 to move back nail and can realize pressurization of sliding.Holder 1 has side opening, and this side opening allows new Bone Ingrowth.Anti-rotation nail 3 is of convenient length, and after bone absorption, anti-rotation nail 3 can not penetrate shoulder joint, damages shoulder joint.Holder 1 mates the medial support realizing proximal humerus with pulp cavity.The connection that fixture of the present utility model can realize head of humerus and humeral shaft recovers mechanical support, and osseous tissue wraps device 1 and heals, and achieve the effect of similar reinforcing bar, cement grouting, bed knife is strong.
Although describe in detail about example embodiment and advantage thereof, being to be understood that when not departing from the protection domain of spirit of the present utility model and claims restriction, various change, substitutions and modifications can being carried out to these embodiments.For other examples, those of ordinary skill in the art should easy understand in maintenance this utility model protection domain while, the order of processing step can change.
In addition, range of application of the present utility model is not limited to the technique of the specific embodiment described in description, mechanism, manufacture, material composition, means, method and step.From disclosure of the present utility model, to easily understand as those of ordinary skill in the art, for the technique existed at present or be about to develop, mechanism, manufacture, material composition, means, method or step later, wherein their perform the identical function of the corresponding embodiment cardinal principle that describes with this utility model or obtain the identical result of cardinal principle, can apply according to this utility model to them.Therefore, this utility model claims are intended to these technique, mechanism, manufacture, material composition, means, method or step to be included in its protection domain.
Claims (10)
1. a proximal humerus fixture, wherein, described fixture comprises: holder, main nail, anti-rotation nail, locking nail;
Described holder is arranged in the pulp cavity of proximal humerus, matches with proximal humerus pulp cavity;
The upper end of described holder comprises the first contact site and the second contact site; Described first contact site contacts with head of humerus, and described first contact site is planar structure;
Described second contact site contacts with greater tubercles of humerus, and described second contact site is projecting shape;
The far-end of the bottom of described holder is bullet shaped, and the bottom of described holder does not contact with pulp cavity;
Described main nail is used for fixing described head of humerus and described first contact site;
The head of described anti-rotation nail enters in head of humerus, and its afterbody is fixedly connected with described holder;
Described locking nail is arranged at the bottom of described holder, is connected for being fixed with humeral shaft by described holder.
2. fixture according to claim 1, wherein, described holder surface is provided with groove.
3. fixture according to claim 1 and 2, wherein, described second contact site is provided with side opening.
4. fixture according to claim 1 and 2, wherein, described first contact site and pulp cavity are 45 ° ~ 50 ° and arrange.
5. fixture according to claim 1 and 2, wherein, described anti-rotation nail is set to 3.
6. fixture according to claim 1, wherein, the afterbody of described anti-rotation nail adopts nut and described holder to be fixed setting.
7. fixture according to claim 1, wherein, described main nail, described anti-rotation nail and/or described locking nail adopt guider to position setting.
8. the fixture according to claim 1 or 2 or 6 or 7, wherein, the material manufacturing described holder comprises: metal material or absorbable material.
9. fixture according to claim 8, wherein, described metal material comprises: titanium alloy, rustless steel, tantalum and/or memorial alloy.
10. the fixture according to claim 1 or 2 or 6 or 7 or 9, wherein, the length of described holder is 3cm ~ 20cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397242.4U CN204121146U (en) | 2014-07-17 | 2014-07-17 | A kind of proximal humerus fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397242.4U CN204121146U (en) | 2014-07-17 | 2014-07-17 | A kind of proximal humerus fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204121146U true CN204121146U (en) | 2015-01-28 |
Family
ID=52377541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420397242.4U Expired - Lifetime CN204121146U (en) | 2014-07-17 | 2014-07-17 | A kind of proximal humerus fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204121146U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104083198A (en) * | 2014-07-17 | 2014-10-08 | 唐佩福 | Proximal humerus fixing device |
| WO2016008062A1 (en) * | 2014-07-17 | 2016-01-21 | 唐佩福 | Device for fixing proximal humerus |
| CN108210058A (en) * | 2018-02-27 | 2018-06-29 | 上海交通大学医学院附属新华医院 | A kind of anatomical form artificial bone that proximal humeral fracture is assisted to reset |
| CN114007525A (en) * | 2019-06-21 | 2022-02-01 | 马尼什·沙阿 | Clamp for guiding placement of glenoid component of implant in shoulder arthroplasty |
-
2014
- 2014-07-17 CN CN201420397242.4U patent/CN204121146U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104083198A (en) * | 2014-07-17 | 2014-10-08 | 唐佩福 | Proximal humerus fixing device |
| WO2016008062A1 (en) * | 2014-07-17 | 2016-01-21 | 唐佩福 | Device for fixing proximal humerus |
| CN104083198B (en) * | 2014-07-17 | 2016-08-17 | 陈华 | A kind of proximal humerus fixing device |
| CN108210058A (en) * | 2018-02-27 | 2018-06-29 | 上海交通大学医学院附属新华医院 | A kind of anatomical form artificial bone that proximal humeral fracture is assisted to reset |
| CN114007525A (en) * | 2019-06-21 | 2022-02-01 | 马尼什·沙阿 | Clamp for guiding placement of glenoid component of implant in shoulder arthroplasty |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160120 Address after: 100039 Department of orthopedics, 28 Fuxing Road, Beijing, Haidian District Patentee after: Chen Hua Patentee after: Tang Peifu Patentee after: Beijing Guo Xietang development in science and technology Co., Ltd Address before: 100853 Department of orthopedics, PLA General Hospital, Fuxing Road, Beijing, Haidian District, China Patentee before: Tang Peifu Patentee before: Chen Hua |