CN110693594B - Intramedullary nail aimer - Google Patents
Intramedullary nail aimer Download PDFInfo
- Publication number
- CN110693594B CN110693594B CN201911084278.0A CN201911084278A CN110693594B CN 110693594 B CN110693594 B CN 110693594B CN 201911084278 A CN201911084278 A CN 201911084278A CN 110693594 B CN110693594 B CN 110693594B
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- Prior art keywords
- intramedullary nail
- holes
- sides
- sleeve
- bracket
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- 238000002513 implantation Methods 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 description 5
- 208000010392 Bone Fractures Diseases 0.000 description 4
- 206010017076 Fracture Diseases 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000003275 diaphysis Anatomy 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary devices, e.g. pins or nails
- A61B17/7233—Intramedullary devices, e.g. pins or nails with special means of locking the nail to the bone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/90—Guides therefor
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Surgical Instruments (AREA)
Abstract
本发明涉及一种髓内钉瞄准器，其包括一个手柄，一个侧向支架，一个档位支架和至少一个锁紧螺母。所述侧向支架可以连接至所述档位支架两侧中的任一侧，以适应左右不同侧患肢髓内钉植入的手术需求。本发明的髓内钉瞄准器提高了应用便捷性，同时降低了医院手术器械成本。
The present invention relates to an intramedullary nail aiming device, which comprises a handle, a lateral support, a gear support and at least one locking nut. The lateral support can be connected to either side of the gear support to meet the surgical requirements of intramedullary nail implantation on the left and right sides of the affected limb. The intramedullary nail aiming device of the present invention improves the convenience of application and reduces the cost of surgical instruments in hospitals.
Description
Technical Field
The invention relates to the technical field of orthopedic medical instruments, in particular to an intramedullary nail sighting device.
Background
The intramedullary nail is a relatively common method for treating fracture, in particular to a first-choice method for fracture of femoral, tibial and humeral diaphysis. Based on the structural characteristics of the intramedullary nail, the intramedullary nail belongs to biological fixation (relatively stable), the stress distribution is relatively uniform, the influence on fracture ends is small, and the elasticity is beneficial to fracture healing.
In clinic, intramedullary nail aiming fixation is often aided by an intramedullary nail aiming device. In the process, the intramedullary nail, the handle, the proximal end aiming device, the gear bracket, the distal end aiming device and the lateral bracket are assembled firstly, then the E-shaped clamping block and the positioning rod are used for downwards pressing and positioning the intramedullary nail distal end positioning platform, finally the protective sleeve is clamped in the sleeve hole of the lateral bracket, and the locking nail is implanted into the intramedullary nail distal end locking nail hole through the protective sleeve, so that the distal end locking nail fixing can be completed.
The locking pin is typically implanted from the inside of the patient's affected limb. Therefore, in the case of the fixed connection of the lateral bracket and the shift bracket, the positional relationship between the two is determined. That is, the intramedullary nail sighting device in a connecting mode is only suitable for the intramedullary nail implantation operation of one of the left and right affected limbs. Therefore, two intramedullary nail sights with different connecting directions between the lateral bracket and the gear bracket are generally needed to meet the operation application requirements of the affected limbs on the left side and the right side of the patient. This objectively increases the cost of medical equipment in hospitals directly and to some extent, inconveniences the operation.
Disclosure of Invention
The invention aims to provide an intramedullary nail sighting device which aims to solve the technical problems in the prior art.
The intramedullary nail sight of the invention comprises a handle, a lateral bracket, a gear bracket and at least one lock nut. The lateral support has a connecting end and a free end. The shift bracket has a proximal end and a distal end. The proximal portion has a gear stage. The gear section is provided with scales. The distal portion has a connecting section. The connecting section has opposite sides. The connection end may be detachably secured to either of the two sides. The intramedullary nail sight can be applied to any side of the left or right affected limb of a patient according to actual needs, two intramedullary nail sights with different connection directions of a lateral bracket and a gear bracket are not needed any more, the instrument cost of a hospital is objectively reduced, and convenience is brought to smooth operation.
According to one aspect of the intramedullary nail sight of the present invention, the connecting section has two through holes, the axes of the two through holes are parallel to each other, and two ends of each of the two through holes are located on the two sides, respectively. Such an arrangement enables the gear bracket to have a structure that can be conveniently and firmly connected with the gear bracket through either one of the two sides.
According to another aspect of the intramedullary nail sight of the present invention, the connecting end has a threaded joint and a protrusion. The threaded joint and the projection are inserted into the two through holes from one of the two sides, respectively, and the threaded joint is fixed by one of the lock nuts on the other of the two sides. Such an arrangement allows the lateral support to be attached to either of the sides in a convenient and secure manner.
According to yet another aspect of the intramedullary nail sight of the present invention, the connecting end has two threaded joints. The two threaded joints are respectively inserted into the two through holes from one of the two sides, and the two threaded joints are respectively fixed by the two lock nuts at the other of the two sides. Such an arrangement allows the lateral support to be attached to either of the sides in a convenient and secure manner.
According to yet another aspect of the intramedullary nail sight of the present invention, the distal portion has a sleeve bore with an axis perpendicular to a plane in which the axes of the two through holes lie, and the sleeve bore axis is equidistant from the axes of the two through holes. The setting can make the locating lever insert into the distal locating lever hole of the intramedullary nail through the locating lever sleeve, and then make the distal end of the intramedullary nail accurately and smoothly locked.
According to yet another aspect of the intramedullary nail sight of the present invention, the proximal portion has a distal aiming device. Such an arrangement facilitates the aiming operation of the distal end of the intramedullary nail and improves aiming accuracy.
According to a further aspect of the intramedullary nail sight of the present invention, the lateral support is made of a material that is penetrable by X-rays. Such an arrangement may avoid the lateral support from obscuring the X-ray imaging.
According to a further aspect of the intramedullary nail sight of the present invention, the free end has a screw. Such an arrangement facilitates better securement of the protective sleeve within the sleeve bore and extends the useful life of the lateral bracket to some extent.
According to a further aspect of the intramedullary nail sight of the present invention, the free end has two sleeve bores, and the two sleeve bores are axisymmetric about the axis of the screw. Such an arrangement facilitates the smooth implantation of the locking pin through the through-bore of the sleeve and into the locking pin bore at the distal end of the intramedullary nail.
Drawings
FIG. 1 is a schematic view of an intramedullary nail sight according to one embodiment of the present invention;
FIG. 2 is a schematic view of a lateral bracket according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a shift bracket according to an embodiment of the present invention;
Reference numerals: 1. intramedullary nail sighting device; 2. a lateral support; 21. a connection end; 211. a threaded joint; 213. a protrusion; 22. a free end; 3. a gear bracket; 31. a proximal portion; 311. a gear stage; 32. a distal end portion; 321. a connection section; 3211. two sides (one); 3213, 3214, through-holes; 4. a handle; 5. a positioning rod; 6. a positioning rod sleeve; 7. an intramedullary nail; 8. and locking the nut.
Detailed Description
The following detailed description of the embodiments of the present invention refers to the accompanying drawings, which illustrate some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
Fig. 1 is a schematic view of the structure of an intramedullary nail sight according to one embodiment of the present invention. The intramedullary nail sight 1 comprises a lateral bracket 2, a gear bracket 3, a handle 4 and at least one lock nut 8. The lateral support 2 has a connecting end 21 and a free end 22. The connecting end 21 of the side bracket 2 is connected to the distal end 32 of the shift bracket 3 via a connecting section 321, and the connecting end 21 has a threaded joint 211 and a projection 213. The gear bracket 3 comprises a proximal portion 31 and a distal portion 32. The proximal end has a gear stage 311. Gear stage 311 has graduations. The distal portion has a connecting section 321. The connecting section 321 has opposite sides. The connection end 21 can be detachably fixed to either one of the two sides. The intramedullary nail sight can be applied to any side of the left or right affected limb of a patient according to actual needs, two intramedullary nail sights with different connection directions of the lateral bracket and the gear bracket are not needed any more, the instrument cost of a hospital is objectively reduced, and convenience is brought to smooth operation.
In a further embodiment, the connecting section 321 has two through holes 3213, 3214, the axes of the two through holes 3213, 3214 are parallel to each other, and two ends of each of the two through holes 3213, 3214 are located on two sides. Such a setting can make the gear bracket have a structure that can be connected with the gear bracket conveniently and firmly through either one of both sides.
In a further embodiment, the connection end 21 has a threaded joint 211 and a protrusion 213. The screw joint 211 and the protrusion 213 are inserted into the two through holes 3213, 3214 from one of both sides, respectively, and the screw joint 211 is fixed by one lock nut 8 on the other of both sides. Such an arrangement allows the lateral support to be attached to either side in a convenient and secure manner.
In another embodiment, the connection end 21 has two threaded joints. Two threaded joints are inserted into the two through holes 3213, 3214, respectively, from one of the two sides, and the two threaded joints are fixed by two lock nuts, respectively, on the other of the two sides. Such an arrangement allows the lateral support to be attached to either side in a convenient and secure manner.
In a further embodiment, distal portion 32 has a sleeve bore. The axis of the sleeve hole is perpendicular to the plane where the axes of the two through holes 3213, 3214 are located, and the axis of the sleeve hole is equidistant from the axes of the two through holes 3213, 3214. The setting can make the locating lever insert into the distal locating lever hole of the intramedullary nail through the locating lever sleeve, and then make the distal end of the intramedullary nail accurately and smoothly locked.
In a further embodiment, the proximal portion 31 has a distal targeting device. Such an arrangement facilitates the aiming operation of the distal end of the intramedullary nail and improves aiming accuracy.
In a further embodiment, the lateral support 2 is made of a material that is penetrable by X-rays. Such an arrangement may avoid the lateral support from obscuring the X-ray imaging.
In a further embodiment, the free end 22 has a screw. Such an arrangement facilitates better securement of the protective sleeve within the sleeve bore and extends the useful life of the lateral bracket to some extent.
In a further embodiment, the free end 22 has two sleeve holes, and the two sleeve holes are axisymmetric about the axis of the screw. Such an arrangement facilitates the smooth implantation of the locking pin through the through-bore of the sleeve and into the locking pin bore at the distal end of the intramedullary nail.
The following steps are sequentially carried out:
1. According to the operation requirement, connecting and fixing the connecting end of the lateral bracket with one of two sides of the connecting section of the gear bracket, and inserting a positioning rod into a sleeve hole of a positioning rod at the far end of the intramedullary nail through a sleeve of the positioning rod;
2. Respectively placing the two protection sleeves in the two sleeve holes of the lateral bracket body so that the two protection sleeves are extruded and fixed in the two sleeve holes;
3. Pre-drilling lock pin mounting holes by using an orthopaedics drill bit to respectively penetrate through the two protection sleeves;
4. two locking nails respectively penetrate through the two protective sleeves to be implanted into the distal locking nail holes of the intramedullary nail.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting thereof; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features can be replaced with equivalents; such modifications and substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. Intramedullary nail sight, characterized in that it comprises:
a handle (4);
a lateral support (2) having a connecting end (21) and a free end (22);
A gear bracket (3) having a proximal portion (31) and a distal portion (32), said proximal portion (31) having a gear section (311), said gear section (311) having graduations, said distal portion (32) having a connecting section (321); and
At least one lock nut (8);
Wherein the connecting section (321) is provided with two opposite sides, the connecting end (21) can be detachably fixed on any one of the two sides, the intramedullary nail sight is applied to any one of left or right affected limbs of a patient according to actual needs, two intramedullary nail sights with different connection directions of a lateral bracket and a gear bracket are not needed any more, the connecting section (321) is provided with two through holes (3213, 3214), the axes of the two through holes (3213, 3214) are parallel to each other, and the two ends of each of the two through holes (3213, 3214) are respectively positioned on the two sides;
The connecting end (21) has a threaded joint (211) and a projection (213), the threaded joint (211) and the projection (213) being inserted into the two through holes (3213, 3214) from one of the two sides, respectively, and the threaded joint (211) being fixed by one of the lock nuts (8) on the other of the two sides;
Or the connecting end (21) has two threaded joints which are respectively inserted into the two through holes (3213, 3214) from one of the two sides, and which are respectively fixed by two lock nuts on the other of the two sides;
The distal end portion (32) has a sleeve hole with an axis perpendicular to the plane of the axes of the two through holes (3213, 3214), and with an axis equidistant from the axes of the two through holes (3213, 3214).
2. Intramedullary nail sight according to claim 1, characterized in that the proximal portion (31) has distal sighting means.
3. Intramedullary nail sight according to claim 1, characterized in that the lateral support (2) is made of a material that is penetrable by X-rays.
4. Intramedullary nail sight according to claim 1, characterized in that the free end (22) has one screw.
5. Intramedullary nail sight according to claim 4, characterized in that the free end (22) has two sleeve holes, and in that the two sleeve holes are axisymmetrical with respect to the axis of the screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911084278.0A CN110693594B (en) | 2019-11-07 | 2019-11-07 | Intramedullary nail aimer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911084278.0A CN110693594B (en) | 2019-11-07 | 2019-11-07 | Intramedullary nail aimer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110693594A CN110693594A (en) | 2020-01-17 |
| CN110693594B true CN110693594B (en) | 2024-11-15 |
Family
ID=69204670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911084278.0A Active CN110693594B (en) | 2019-11-07 | 2019-11-07 | Intramedullary nail aimer |
Country Status (1)
| Country | Link |
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| CN (1) | CN110693594B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113855208B (en) * | 2021-10-08 | 2024-04-16 | 四川省骨科医院 | Handle for installing femoral intramedullary nail |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201295286Y (en) * | 2008-10-21 | 2009-08-26 | 常州迪恩医疗器械有限公司 | Three-in-one aiming device for femoral intramedullary nail |
| CN201453367U (en) * | 2008-12-04 | 2010-05-12 | 常州亨杰医疗器械有限公司 | Tibial nailing operative instrument |
| CN108272499A (en) * | 2017-12-29 | 2018-07-13 | 常州市康辉医疗器械有限公司 | A kind of light-permeable intra medullary nail far-end lock pin sighting device |
| CN208625832U (en) * | 2018-02-06 | 2019-03-22 | 熊鹰 | A kind of assembly type Multifunctional orthopedic inner fixing device |
| CN211355819U (en) * | 2019-11-07 | 2020-08-28 | 常州市康辉医疗器械有限公司 | Intramedullary nail sighting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10492803B2 (en) * | 2016-09-22 | 2019-12-03 | Globus Medical, Inc. | Systems and methods for intramedullary nail implantation |
-
2019
- 2019-11-07 CN CN201911084278.0A patent/CN110693594B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201295286Y (en) * | 2008-10-21 | 2009-08-26 | 常州迪恩医疗器械有限公司 | Three-in-one aiming device for femoral intramedullary nail |
| CN201453367U (en) * | 2008-12-04 | 2010-05-12 | 常州亨杰医疗器械有限公司 | Tibial nailing operative instrument |
| CN108272499A (en) * | 2017-12-29 | 2018-07-13 | 常州市康辉医疗器械有限公司 | A kind of light-permeable intra medullary nail far-end lock pin sighting device |
| CN208625832U (en) * | 2018-02-06 | 2019-03-22 | 熊鹰 | A kind of assembly type Multifunctional orthopedic inner fixing device |
| CN211355819U (en) * | 2019-11-07 | 2020-08-28 | 常州市康辉医疗器械有限公司 | Intramedullary nail sighting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110693594A (en) | 2020-01-17 |
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