CN112294412A - Humerus multidimensional locking intramedullary nail - Google Patents
Humerus multidimensional locking intramedullary nail Download PDFInfo
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- CN112294412A CN112294412A CN202011182153.4A CN202011182153A CN112294412A CN 112294412 A CN112294412 A CN 112294412A CN 202011182153 A CN202011182153 A CN 202011182153A CN 112294412 A CN112294412 A CN 112294412A
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- bone screw
- nail
- intramedullary nail
- long bone
- proximal
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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
- A61B17/725—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with locking pins or screws of special form
-
- 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
- A61B17/7283—Intramedullary pins, nails or other devices with special cross-section of the nail
-
- 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts 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)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention is suitable for the technical field of medical instruments, and provides a humerus multidimensional locking intramedullary nail, which is characterized in that a main nail comprising a proximal intramedullary nail and a distal intramedullary nail is arranged, a first long bone screw, a second long bone screw, a third long bone screw, a fourth long bone screw and a multidimensional adjusting bone screw are arranged on the proximal intramedullary nail, a first short bone screw, a second short bone screw and a third short bone screw are arranged on the distal intramedullary nail, wherein the multidimensional adjusting bone screw is adjustable along the direction of 360 degrees around, and the adjusting angle range is 15 degrees from the circumference of the central line direction; the included angle between the first long bone screw and the second long bone screw is 90 degrees, the included angle between the second long bone screw and the third long bone screw is 30 degrees, and the first short bone screw and the third short bone screw are adjustable up and down by 70 degrees.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a multi-dimensional locking intramedullary nail for humerus.
Background
Multi-dimensional locking intramedullary nails of the humerus have a variety of locking options for simple and complex fractures. Intramedullary nails generally refer to long steel nails placed in the bone marrow cavity, such as femur and humerus of the human body, and when a bone of the human body is fractured, the intramedullary nails are usually used to connect the fractured bone, so that the rotational deformity of the fracture can be prevented, and the risk of fracture of the implant can be reduced.
But certain defect is deposited when using to the intramedullary nail on the existing market, and traditional intramedullary nail lockhole is small in quantity, and fixed effect is not good, takes place the aversion easily at the in-process of skeleton healing, influences the normal combination of broken bone, and in addition, the fixed angle of ordinary intramedullary nail lockhole is unanimous, and unable multi-angle is supported fixedly, leads to the locking screw to become flexible easily, and then influences the healing of skeleton.
Disclosure of Invention
The invention provides a humerus multidimensional locking intramedullary nail, which aims to solve the problems in the prior art.
The invention is realized in this way, the humerus multidimensional locking intramedullary nail comprises a main nail which is integrally formed; the main nail is provided with a proximal intramedullary nail and a distal intramedullary nail which are connected; the diameter of the proximal intramedullary nail is longer than the diameter of the distal intramedullary nail;
a first long bone screw, a second long bone screw, a third long bone screw and a fourth long bone screw are sequentially and radially arranged on the near-end intramedullary nail in a penetrating and screwed mode along the length direction of the near-end intramedullary nail, a multi-dimensional nail hole is radially arranged on the near-end intramedullary nail in a penetrating mode, the multi-dimensional nail hole is located between the first long bone screw and the second long bone screw, a multi-dimensional adjusting bone nail is arranged in the multi-dimensional nail hole, the multi-dimensional adjusting bone nail is adjustable along the direction of 360 degrees around the multi-dimensional adjusting bone nail, and the adjusting angle range is 15 degrees around the midline; the included angle between the first long bone screw and the second long bone screw is 90 degrees, the included angle between the second long bone screw and the third long bone screw is 30 degrees, and the first long bone screw and the third long bone screw are parallel to each other;
follow on the distal intramedullary nail the length direction of distal intramedullary nail installs short bone screw one, short bone screw two and short bone screw three in proper order, radially run through on the distal intramedullary nail and seted up adjusting nail hole one and adjusting nail hole two, adjusting nail hole one with adjusting nail hole two is the sliding hole, short bone screw one is installed in adjusting nail hole one, short bone screw three is installed in adjusting nail hole two, short bone screw one with short bone screw three is adjustable 70 about following.
Preferably, the lengths of the proximal intramedullary nail and the distal intramedullary nail are 60mm and 70mm, respectively;
the diameter of the near-end intramedullary nail is 9mm, the diameter of the far-end intramedullary nail is 6mm, an inner nail connecting section is connected between the near-end intramedullary nail and the far-end intramedullary nail, and the diameter of the inner nail connecting section is uniformly reduced along the length direction; the diameters of the two ends of the inner nail connecting section are respectively 9mm and 6mm and are respectively connected with the proximal intramedullary nail and the distal intramedullary nail.
Preferably, the second short bone screw and the distal intramedullary nail are installed in a threaded manner.
Preferably, a long bone screw five is further mounted on the proximal intramedullary nail in a threaded manner, and the long bone screw five is a side of the long bone screw four close to the distal intramedullary nail.
Preferably, the included angle between the long bone screw five and the long bone screw four is 60 degrees.
Preferably, a terminal cap is mounted on an end of the proximal intramedullary nail remote from the distal intramedullary nail.
Preferably, the length of the terminal cap is 10mm or 15mm, and one end of the terminal cap extends into the proximal intramedullary nail.
Preferably, the first long bone screw, the second long bone screw, the third long bone screw, the fourth long bone screw and the fifth long bone screw are all installed on the proximal intramedullary nail through screw holes, and a circular washer is arranged in each screw hole.
Compared with the prior art, the invention has the beneficial effects that: the humerus multidimensional locking intramedullary nail is characterized in that a main nail comprising a proximal intramedullary nail and a distal intramedullary nail is arranged, a first long bone screw, a second long bone screw, a third long bone screw, a fourth long bone screw and a multidimensional adjusting bone nail are arranged on the proximal intramedullary nail, a first short bone screw, a second short bone screw and a third short bone screw are arranged on the distal intramedullary nail, wherein the multidimensional adjusting bone nail is adjustable along the peripheral 360-degree direction, and the adjusting angle range is 15-degree range with the peripheral of the central line direction; the included angle between the first long bone screw and the second long bone screw is 90 degrees, the included angle between the second long bone screw and the third long bone screw is 30 degrees, and the first short bone screw and the third short bone screw are adjustable up and down by 70 degrees.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: 1-main nail, 11-proximal intramedullary nail, 111-terminal cap, 112-multidimensional nail hole, 113-multidimensional adjusting bone nail, 114-long bone screw I, 115-long bone screw II, 116-long bone screw III, 117-long bone screw IV, 118-long bone screw V, 12-distal intramedullary nail, 121-adjusting nail hole I, 122-short bone screw I, 123-short bone screw II, 124-adjusting nail hole II and 125-short bone screw III.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further 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.
Referring to fig. 1, the present invention provides a technical solution: the humerus multidimensional locking intramedullary nail comprises a main nail 1 which is integrally formed; the main nail 1 has a proximal intramedullary nail 11 and a distal intramedullary nail 12 connected; the diameter of the proximal intramedullary nail 11 is longer than the diameter of the distal intramedullary nail 12.
The proximal intramedullary nail 11 and the distal intramedullary nail 12 have a length of 60mm and 70mm, respectively. The diameter of the proximal intramedullary nail 11 is 9mm, the diameter of the distal intramedullary nail 12 is 6mm, an inner nail connecting section is connected between the proximal intramedullary nail 11 and the distal intramedullary nail 12, and the diameter of the inner nail connecting section is uniformly reduced along the length direction; the diameters of the two ends of the internal nail connecting section are respectively 9mm and 6mm and are respectively connected with a proximal intramedullary nail 11 and a distal intramedullary nail 12. The proximal 11 and distal 12 intramedullary nails and the internal nail connection segments form a stable, integrally formed structure.
A first long bone screw 114, a second long bone screw 115, a third long bone screw 116, a fourth long bone screw 117 and a fifth long bone screw 118 are sequentially and radially arranged on the proximal intramedullary nail 11 in a penetrating and screwed mode along the length direction of the proximal intramedullary nail 11, a multi-dimensional nail hole 112 is radially arranged on the proximal intramedullary nail 11 in a penetrating mode, the multi-dimensional nail hole 112 is located between the first long bone screw 114 and the second long bone screw 115, a multi-dimensional adjusting bone nail 113 is arranged in the multi-dimensional nail hole 112, the multi-dimensional adjusting bone nail 113 is adjustable along the direction of 360 degrees around, and the adjusting angle range is 15 degrees around the midline; the angle between the first long bone screw 114 and the second long bone screw 115 is 90 degrees, the angle between the second long bone screw 115 and the third long bone screw 116 is 30 degrees, and the first long bone screw 114 and the fourth long bone screw 117 are parallel. The long bone screw five 118 is the side of the long bone screw four 117 proximal to the distal intramedullary nail 12. The angle between long bone screw five 118 and long bone screw four 117 is 60 °. The first long bone screw 114, the second long bone screw 115, the third long bone screw 116, the fourth long bone screw 117 and the fifth long bone screw 118 are all mounted on the proximal intramedullary nail 11 through screw holes, and a circular washer is arranged in each screw hole.
Wherein, the channel of the multi-dimensional nail hole 112 is arranged in an hourglass shape, so that the multi-dimensional adjustable bone nail 113 can be designed into an adjustable angle, and the nail feeding angle can be properly adjusted according to the actual fracture type and the fracture line position, thereby achieving the best fixing effect. The gasket can fix the suture line to do benefit to the suture of later stage ligament and bone piece, both saved space, again can effective fixed distribution suture line.
The first short bone screw 122, the second short bone screw 123 and the third short bone screw 125 are sequentially arranged on the distal intramedullary nail 12 along the length direction of the distal intramedullary nail 12, a first adjusting nail hole 121 and a second adjusting nail hole 124 are radially arranged on the distal intramedullary nail 12 in a penetrating manner, the first adjusting nail hole 121 and the second adjusting nail hole 124 are both sliding holes, the first short bone screw 122 is arranged in the first adjusting nail hole 121, the third short bone screw 125 is arranged in the second adjusting nail hole 124, and the first short bone screw 122 and the third short bone screw 125 are adjustable along the vertical direction by 70 degrees. The second short bone screw 123 is screwed with the distal intramedullary nail 12.
Wherein, because the position and the angle of the first short bone screw 122 and the third short bone screw 125 can be adjusted, the best fixing effect can be achieved by adjusting the first short bone screw 122 and the third short bone screw 125, the effective locking effect can be ensured, and the injury to nearby blood vessels and nerves can be avoided as much as possible.
The end of the proximal intramedullary nail 11 remote from the distal intramedullary nail 12 is fitted with a terminal cap 111. The length of the terminal cap 111 is 10mm or 15mm and one end of the terminal cap 111 extends into the proximal intramedullary nail 11.
In addition, in other embodiments, the short and long bone screws may be replaced as needed.
The humerus multidimensional locking intramedullary nail is characterized in that a main nail 1 comprising a proximal intramedullary nail and a distal intramedullary nail is arranged, a first long bone screw 114, a second long bone screw 115, a third long bone screw 116, a fourth long bone screw 117 and a multidimensional adjusting bone screw 113 are arranged on the proximal intramedullary nail 11, a first short bone screw 122, a second short bone screw 123 and a third short bone screw 125 are arranged on the distal intramedullary nail 12, wherein the multidimensional adjusting bone screw 13 is adjustable along the direction of 360 degrees around, and the adjusting angle range is 15 degrees around the midline; the included angle between the first long bone screw 114 and the second long bone screw 115 is 90 degrees, the included angle between the second long bone screw 115 and the third long bone screw 116 is 30 degrees, and the first short bone screw 122 and the third short bone screw 125 are adjustable along the vertical direction by 70 degrees. The multi-dimensional locking intramedullary nail for the humerus is a comprehensive system for treating the humerus fracture by synthesizing a plurality of partial humeral brackets. The system consists of short and long nails with a variety of screw options to address simple and complex fractures of the proximal humerus and humeral shaft.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The multi-dimensional locking intramedullary nail of the humerus is characterized in that: comprises a main nail (1) which is integrally formed; the main nail (1) is provided with a proximal intramedullary nail (11) and a distal intramedullary nail (12) which are connected; the diameter of the proximal intramedullary nail (11) is longer than the diameter of the distal intramedullary nail (12);
a first long bone screw (114), a second long bone screw (115), a third long bone screw (116) and a fourth long bone screw (117) are sequentially and radially installed on the proximal intramedullary nail (11) in a penetrating and screwed mode along the length direction of the proximal intramedullary nail (11), a multi-dimensional nail hole (112) is radially formed in the proximal intramedullary nail (11) in a penetrating mode, the multi-dimensional nail hole (112) is located between the first long bone screw (114) and the second long bone screw (115), a multi-dimensional adjusting bone nail (113) is installed in the multi-dimensional nail hole (112), the multi-dimensional adjusting bone nail (113) is adjustable along the direction of 360 degrees around, and the adjusting angle range is 15 degrees around the midline; the included angle between the first long bone screw (114) and the second long bone screw (115) is 90 degrees, the included angle between the second long bone screw (115) and the third long bone screw (116) is 30 degrees, and the first long bone screw (114) is parallel to the fourth long bone screw (117);
the utility model discloses a nail, including distal end intramedullary nail (12), edge on the distal end intramedullary nail (12) install short bone screw one (122), short bone screw two (123) and short bone screw three (125) in proper order, radially run through on distal end intramedullary nail (12) and seted up adjusting nail hole one (121) and adjusting nail hole two (124), adjusting nail hole one (121) with adjusting nail hole two (124) are the sliding hole, install short bone screw one (122) in adjusting nail hole one (121), install short bone screw three (125) in adjusting nail hole two (124), short bone screw one (122) with short bone screw three (125) are adjustable along upper and lower 70.
2. The humeral multidimensional locking intramedullary nail of claim 1, wherein: the lengths of the proximal intramedullary nail (11) and the distal intramedullary nail (12) are 60mm and 70mm respectively;
the diameter of the near-end intramedullary nail (11) is 9mm, the diameter of the far-end intramedullary nail (12) is 6mm, an inner nail connecting section is connected between the near-end intramedullary nail (11) and the far-end intramedullary nail (12), and the diameter of the inner nail connecting section is uniformly reduced along the length direction; the diameters of the two ends of the inner nail connecting section are respectively 9mm and 6mm and are respectively connected with the proximal intramedullary nail (11) and the distal intramedullary nail (12).
3. The humeral multidimensional locking intramedullary nail of claim 1, wherein: the second short bone screw (123) and the far-end intramedullary nail (12) are installed in a threaded mode.
4. The humeral multidimensional locking intramedullary nail of claim 1, wherein: a long bone screw five (118) is further installed on the proximal intramedullary nail (11) in a threaded mode, and the long bone screw five (118) is the side, close to the distal intramedullary nail (12), of the long bone screw four (117).
5. The humeral multidimensional locking intramedullary nail of claim 4, wherein: the angle between the long bone screw five (118) and the long bone screw four (117) is 60 degrees.
6. The humeral multidimensional locking intramedullary nail of claim 1, wherein: the end of the proximal intramedullary nail (11) far away from the distal intramedullary nail (12) is provided with a terminal cap (111).
7. The humeral multidimensional locking intramedullary nail of claim 6, wherein: the length of the terminal cap (111) is 10mm or 15mm, and one end of the terminal cap (111) extends into the proximal intramedullary nail (11).
8. The humeral multidimensional locking intramedullary nail of claim 4, wherein: the long bone screw I (114), the long bone screw II (115), the long bone screw III (116), the long bone screw IV (117) and the long bone screw V (118) are all installed on the proximal intramedullary nail (11) through screw holes, and a circular washer is arranged in each screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011182153.4A CN112294412A (en) | 2020-10-29 | 2020-10-29 | Humerus multidimensional locking intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011182153.4A CN112294412A (en) | 2020-10-29 | 2020-10-29 | Humerus multidimensional locking intramedullary nail |
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| Publication Number | Publication Date |
|---|---|
| CN112294412A true CN112294412A (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011182153.4A Pending CN112294412A (en) | 2020-10-29 | 2020-10-29 | Humerus multidimensional locking intramedullary nail |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201551383U (en) * | 2009-08-03 | 2010-08-18 | 周跃 | Automatic pressurizing interlocking intramedullary nail |
| US20110160729A1 (en) * | 2009-07-01 | 2011-06-30 | Tom Overes | Intramedullary Nail and Protruding Screw Locking Mechanism |
| CN102149343A (en) * | 2008-08-12 | 2011-08-10 | 坦图姆股份公司 | Short pin for taking care of epiphysis fractures |
| US20180193068A1 (en) * | 2015-04-24 | 2018-07-12 | Biomet Manufacturing, Llc | Variable angle locking insert for intramedullary nail |
| CN110934630A (en) * | 2019-11-06 | 2020-03-31 | 上海伯塔医疗器械有限公司 | Straight type interlocking intramedullary nail of fixed humerus of multi-angle locking |
-
2020
- 2020-10-29 CN CN202011182153.4A patent/CN112294412A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102149343A (en) * | 2008-08-12 | 2011-08-10 | 坦图姆股份公司 | Short pin for taking care of epiphysis fractures |
| US20110160729A1 (en) * | 2009-07-01 | 2011-06-30 | Tom Overes | Intramedullary Nail and Protruding Screw Locking Mechanism |
| CN201551383U (en) * | 2009-08-03 | 2010-08-18 | 周跃 | Automatic pressurizing interlocking intramedullary nail |
| US20180193068A1 (en) * | 2015-04-24 | 2018-07-12 | Biomet Manufacturing, Llc | Variable angle locking insert for intramedullary nail |
| CN110934630A (en) * | 2019-11-06 | 2020-03-31 | 上海伯塔医疗器械有限公司 | Straight type interlocking intramedullary nail of fixed humerus of multi-angle locking |
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Application publication date: 20210202 |
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