CN110693594A - Intramedullary nail sighting device - Google Patents
Intramedullary nail sighting device Download PDFInfo
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- CN110693594A CN110693594A CN201911084278.0A CN201911084278A CN110693594A CN 110693594 A CN110693594 A CN 110693594A CN 201911084278 A CN201911084278 A CN 201911084278A CN 110693594 A CN110693594 A CN 110693594A
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- intramedullary nail
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- sides
- sleeve
- sight according
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other devices
- A61B17/7233—Intramedullary pins, nails or other devices 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, e.g. tourniquets
- 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, setting implements or the like
- 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, e.g. tourniquets
- 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, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/90—Guides therefor
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- 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)
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- General Health & Medical Sciences (AREA)
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- Neurology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to an intramedullary nail aiming device, which comprises a handle, a lateral bracket, a gear bracket and at least one locking nut. The lateral bracket can be connected to any one of two sides of the gear bracket so as to meet the surgical requirements of implanting the intramedullary nails of the affected limbs on the left side and the right side. The intramedullary nail sighting device improves the application convenience and reduces the cost of hospital surgical instruments.
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 commonly used internal fixation treatment method for fracture, in particular to a preferred method for femoral, tibial and humeral shaft fractures. Based on the structural characteristics of the intramedullary nail, the intramedullary nail is biologically fixed (relatively stable), has uniform stress distribution, has small influence on the fracture end, and has elasticity beneficial to fracture healing.
In clinic, aiming and fixing of intramedullary nails are often assisted by intramedullary nail sights. In the process, the intramedullary nail, the handle, the near-end aiming device, the gear bracket, the far-end aiming device and the lateral bracket are assembled firstly, the E-shaped clamping block and the positioning rod are used for pressing down and positioning the far-end positioning platform of the intramedullary nail, finally the protective sleeve is clamped in the sleeve hole of the lateral bracket, and the locking nail is implanted into the far-end locking nail hole of the intramedullary nail through the protective sleeve, so that the far-end locking nail fixing can be completed.
The locking pin is typically implanted from the inside of the affected limb of the patient. Therefore, in the case where the side bracket is fixedly connected to the range bracket, the positional relationship between the both is determined. That is, the intramedullary nail sighting device with one connection mode is only suitable for the intramedullary nail implantation operation of one affected limb of the left and right affected limbs. Therefore, two kinds of intramedullary nail sighting devices with different connecting directions between the lateral bracket and the gear bracket are generally needed to meet the surgical application requirements of the affected limb on the left side and the affected limb on the right side of the patient. This objectively and directly increases the cost of medical equipment in hospitals and to some extent brings inconvenience to the operation.
Disclosure of Invention
The present invention is directed to an intramedullary nail aiming device to solve the above-mentioned problems of the prior art.
The intramedullary nail sighting device comprises a handle, a lateral bracket, a gear bracket and at least one locking nut. The lateral support has a connecting end and a free end. The range bracket has a proximal end and a distal end. The proximal portion has a gear segment. The gear section is provided with scales. The distal portion has a connecting segment. The connecting section has opposite sides. The connection end may be detachably fixed to either one of the two sides. The intramedullary nail sighting device can be applied to any side of the left or right affected limb of a patient according to actual needs, two kinds of intramedullary nail sighting devices with different connecting directions of the lateral bracket and the gear bracket are not needed, 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 both ends of each of the two through holes are located at both sides. Such an arrangement enables the gear bracket to have a structure that can be conveniently and securely connected to the gear bracket through either of the two sides.
According to another aspect of the intramedullary nail sight of the present invention, the connecting end has a threaded connection and a protrusion. The nipple and the projection are inserted into the two through holes from one of the two sides, respectively, and the nipple is fixed by one of the lock nuts at the other of the two sides. Such an arrangement allows the lateral support to be attached to either side of the two sides in a convenient and secure manner.
According to a further aspect of the intramedullary nail sight according to the present invention, the connecting end has two threaded joints. The two screw joints are inserted into the two through holes from one of the two sides, respectively, and the other sides of the two screw joints on the two sides are fixed by the two lock nuts, respectively. Such an arrangement allows the lateral support to be attached to either side of the two sides in a convenient and secure manner.
According to a further aspect of the intramedullary nail sight according to the present invention, the distal portion has a sleeve hole having an axis perpendicular to the plane of the axes of the two through holes and equidistant from the axes of the two through holes. The arrangement can ensure that the positioning rod is inserted into the distal positioning rod hole of the intramedullary nail through the positioning rod sleeve, thereby ensuring that the distal end of the intramedullary nail is 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 means. The arrangement is beneficial to aiming operation of the far end of the intramedullary nail and improves aiming precision.
According to a further aspect of the intramedullary nail sight according to the present invention, said lateral support is made of a material that is transparent to X-rays. Such an arrangement may avoid the lateral support from obscuring X-ray imaging.
According to yet another aspect of the intramedullary nail sight of the present invention, the free end has a screw. Such an arrangement facilitates better retention of the protective sleeve within the sleeve bore and to some extent extends the useful life of the lateral support.
According to a further aspect of the intramedullary nail sight according to the present invention, the free end has two sleeve holes and the two sleeve holes are axisymmetric with respect to the axis of the screw. The arrangement is favorable for the locking nail to be smoothly implanted into the locking nail hole at the far end of the intramedullary nail through the through hole of the sleeve.
Drawings
FIG. 1 is a schematic structural view of an intramedullary nail sight in accordance with an embodiment of the present invention;
FIG. 2 is a schematic structural view of a lateral brace according to an embodiment of the present invention;
FIG. 3 is a schematic illustration of a shift bracket according to an embodiment of the present invention;
reference numerals: 1. an intramedullary nail sighting device; 2. a lateral support; 21. a connecting end; 211. a threaded joint; 213. a protrusion; 22. a free end; 3. a gear bracket; 31. a proximal end portion; 311. a gear section; 32. a distal portion; 321. a connecting section; 3211. (ii) both sides (one of); 3213, 3214, through hole; 4. a handle; 5. positioning a rod; 6. a positioning rod sleeve; 7. intramedullary nails; 8. And locking the nut.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which illustrate some, but not all embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Fig. 1 is a schematic structural view of an intramedullary nail sight according to an embodiment of the present invention. The intramedullary nail sight 1 comprises a lateral support 2, a gear support 3, a handle 4 and at least one locking nut 8. The lateral support 2 has a connecting end 21 and a free end 22. Connecting end 21 of lateral support 2 is connected to distal end 32 of range support 3 by connecting segment 321, and connecting end 21 has a threaded joint 211 and a projection 213. The range bracket 3 comprises a proximal portion 31 and a distal portion 32. The proximal end has a gear segment 311. The gear section 311 has a scale. The distal portion has a connecting segment 321. The connecting section 321 has opposite sides. The connecting end 21 can be detachably fixed to either one of the two sides. The arrangement enables the intramedullary nail sighting device to be applied to any side of the left or right affected limb of a patient according to actual needs, two kinds of intramedullary nail sighting devices with different connecting 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 at two sides. Such setting can make the gear support have can be through either side in both sides with the convenient and firm structure of being connected of gear support.
In a further embodiment, the connecting end 21 has a threaded connection 211 and a projection 213. The threaded joint 211 and the projection 213 are inserted into the two through holes 3213, 3214 from one of the two sides, respectively, and the threaded joint 211 is fixed by one lock nut 8 at the other of the two sides. Such an arrangement allows the lateral support to be attached to either side of the two sides in a convenient and secure manner.
In another embodiment, the connecting end 21 has two threaded connections. Two screw joints are inserted into the two through holes 3213, 3214 from one of the two sides, respectively, and the other of the two screw joints is fixed by two lock nuts, respectively. Such an arrangement allows the lateral support to be attached to either side of the two sides in a convenient and secure manner.
In a further embodiment, the distal portion 32 has a sleeve aperture. The axis of the sleeve hole is perpendicular to the plane of the axes of the two through holes 3213, 3214, and the distance between the axis of the sleeve hole and the axes of the two through holes 3213, 3214 is equal. The arrangement can ensure that the positioning rod is inserted into the distal positioning rod hole of the intramedullary nail through the positioning rod sleeve, thereby ensuring that the distal end of the intramedullary nail is accurately and smoothly locked.
In a further embodiment, the proximal portion 31 has a distal targeting device. The arrangement is beneficial to aiming operation of the far end of the intramedullary nail and improves aiming precision.
In a further embodiment, the lateral support 2 is made of a material that is transparent to X-rays. Such an arrangement may avoid the lateral support from obscuring X-ray imaging.
In a further embodiment, the free end 22 has a screw. Such an arrangement facilitates better retention of the protective sleeve within the sleeve bore and to some extent extends the useful life of the lateral support.
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. The arrangement is favorable for the locking nail to be smoothly implanted into the locking nail hole at the far end of the intramedullary nail through the through hole of the sleeve.
The following steps are carried out in sequence:
1. according to the operation requirement, the connecting end of the lateral bracket is fixedly connected with one of two sides of the connecting section of the gear bracket, and the positioning rod passes through the positioning rod sleeve and is inserted into a sleeve hole of the positioning rod at the far end of the intramedullary nail;
2. respectively placing the two protective sleeves into the two sleeve holes of the lateral bracket body so as to ensure that the two protective sleeves are extruded and fixed in the two sleeve holes;
3. an orthopedic drill bit penetrates through the two protective sleeves respectively to pre-drill a locking nail mounting hole;
4. two locking nails respectively penetrate through the two protective sleeves to be implanted into the locking nail holes at the far end of the intramedullary nail.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention, and not for limiting the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. Intramedullary nail sight, characterized in that includes:
a handle (4);
a lateral support (2) having a connecting end (21) and a free end (22);
a range bracket (3) having a proximal end portion (31) and a distal end portion (32), said proximal end portion (31) having a range section (311), said range section (311) having graduations, said distal end portion (32) having a connecting section (321); and
at least one lock nut (8);
wherein the connecting section (321) has two opposite sides, and the connecting end (21) can be detachably fixed on any one of the two sides.
2. Intramedullary nail sight according to claim 1, characterized in that said connecting section (321) has two through holes (3213, 3214), the axes of said two through holes (3213, 3214) being parallel to each other and the two ends of each of said two through holes (3213, 3214) being located on each of said two sides.
3. Intramedullary nail sight according to claim 2, characterized in that said connecting end (21) has a threaded joint (211) and a protrusion (213), said threaded joint (211) and said protrusion (213) being inserted into said two through holes (3213, 3214) respectively from one of said sides, and said threaded joint (211) being fixed by one of said locking nuts (8) at the other of said sides.
4. Intramedullary nail sight according to claim 2, characterized in that said connecting end (21) has two threaded joints inserted respectively into said two through holes (3213, 3214) from one of said sides and fixed respectively by said two locking nuts on the other of said sides.
5. Intramedullary nail sight according to claim 2, characterized in that the distal part (32) has a sleeve hole with an axis perpendicular to the plane of the axes of the two through holes (3213, 3214) and equidistant from the axes of the two through holes (3213, 3214).
6. Intramedullary nail sight according to claim 1, characterized in that the proximal part (31) has a distal aiming means.
7. Intramedullary nail sight according to claim 1, characterized in that the lateral support (2) is made of a material that is transparent to X-rays.
8. Intramedullary nail sight according to claim 1, characterized in that said free end (22) has a screw.
9. Intramedullary nail sight according to claim 8, characterized in that the free end (22) has two sleeve holes, and the two sleeve holes are axisymmetric with respect to the axis of the screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911084278.0A CN110693594A (en) | 2019-11-07 | 2019-11-07 | Intramedullary nail sighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911084278.0A CN110693594A (en) | 2019-11-07 | 2019-11-07 | Intramedullary nail sighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110693594A true CN110693594A (en) | 2020-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911084278.0A Pending CN110693594A (en) | 2019-11-07 | 2019-11-07 | Intramedullary nail sighting device |
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| Country | Link |
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| CN (1) | CN110693594A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113855208A (en) * | 2021-10-08 | 2021-12-31 | 四川省骨科医院 | Novel handle for installing femoral intramedullary nail |
-
2019
- 2019-11-07 CN CN201911084278.0A patent/CN110693594A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113855208A (en) * | 2021-10-08 | 2021-12-31 | 四川省骨科医院 | Novel handle for installing femoral intramedullary nail |
| CN113855208B (en) * | 2021-10-08 | 2024-04-16 | 四川省骨科医院 | Handle for installing femoral intramedullary nail |
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