CN107184266B - Fixing device beneficial to patella fracture fixation and healing - Google Patents
Fixing device beneficial to patella fracture fixation and healing Download PDFInfo
- Publication number
- CN107184266B CN107184266B CN201710348119.1A CN201710348119A CN107184266B CN 107184266 B CN107184266 B CN 107184266B CN 201710348119 A CN201710348119 A CN 201710348119A CN 107184266 B CN107184266 B CN 107184266B
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- wire feeding
- groove
- wire
- patella
- feeding plate
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- 230000035876 healing Effects 0.000 title claims abstract description 19
- 206010034122 Patella fracture Diseases 0.000 title claims abstract description 15
- 230000009286 beneficial effect Effects 0.000 title abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 57
- 239000010959 steel Substances 0.000 claims abstract description 57
- 210000004417 patella Anatomy 0.000 claims abstract description 47
- 206010017076 Fracture Diseases 0.000 claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000002349 favourable effect Effects 0.000 claims description 3
- 208000010392 Bone Fractures Diseases 0.000 abstract description 15
- 230000006378 damage Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000000399 orthopedic effect Effects 0.000 abstract description 2
- 210000003195 fascia Anatomy 0.000 description 10
- 210000003041 ligament Anatomy 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 230000017531 blood circulation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 208000006670 Multiple fractures Diseases 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000008338 local blood flow Effects 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000001519 tissue Anatomy 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, 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/82—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin for bone cerclage
-
- 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
- A61B2017/564—Methods for bone or joint treatment
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)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
A fixing device which is beneficial to the fixation and healing of patella fracture belongs to the technical field of orthopedics medical appliances and is used for the fixation of patella fracture. The technical proposal is as follows: the rear part of the needle body of the fixed needle is provided with a limit bulge, a needle body below the limit bulge is provided with a groove, the groove is opposite to the limit bulge, the groove is in a semicircular arc shape, the circular arc diameter of the groove is matched with the diameter of the steel wire, and the needle body at the rear part of the groove is provided with a breaking groove; the wire feeding plate is a strip-shaped plate, the wire feeding plate is in a curved arc shape in the length direction of the plate surface, the curvature of the arc shape is matched with the curvature of the upper surface of the patella, the push rod is connected to the rear end of the wire feeding plate, the rear end of the push rod is connected with the handle, a steel wire hole is formed in the rod body of the push rod, a wire feeding groove along the length direction of the wire feeding plate is formed in the lower bottom surface of the wire feeding plate, and the steel wire hole of the push rod is opposite to the wire feeding groove. The invention is the initiative of the minimally invasive fixation of the patella fracture, and has the advantages of simple structure, convenient operation, good fixation effect, damage avoidance and contribution to fracture healing.
Description
Technical Field
The invention relates to a fixing device for patellar fracture, and belongs to the technical field of orthopedic medical appliances.
Background
Patellar fracture is a common clinical injury, and the current common surgical scheme is to fix the patellar fracture by using a Kirschner wire tension strip steel wire after incision and reduction. The surgical procedure is: after the patella fracture is reset, the patella forceps jaws are used for temporary fixation; two Kirschner pins or patella pins (with a needle door in the middle and a groove behind the needle door for breaking) are implanted in the direction perpendicular to the fracture line; the method comprises the steps of selecting steel wires with proper length to be sleeved at two ends of a Kirschner wire or a patella needle, intersecting the steel wires at the outer side of the patella, cutting ligaments and fascia on the surface of the patella along the shape of the steel wires by using an electric knife or a circular knife, and fastening the steel wires around to fix the fracture. The operation technique is simple to operate, and the fracture can be healed well. However, in the case of the patella needle used in the operation, it is found that when the patella needle is fixed, the steel wire passes through the needle door and is tightly wound on the other side of the needle door, the steel wire is tightly clamped by the needle door, tension cannot be pulled, the steel wire is often required to be tightly wound on the opposite side by using a kirschner wire, steel wire breakage easily occurs, the patella needle is required to be fixed again, and the tension band is difficult to be tightly wound, so that the tension band is loosened. Meanwhile, for old patients, patients with multiple fracture and patients with poor whole body conditions, the fascia and ligament tissues on the surface of the patella are cut and separated to accommodate the steel wire by using an electric knife or a circular knife along the shape of the steel wire before the steel wire is wound, so that local blood circulation is destroyed, fracture healing is affected, and fracture delayed healing even non-healing is caused for part of patients. In view of this, there is a great need for improvements in existing patellar fracture fixation to achieve fixation firmness and healing promotion.
Disclosure of Invention
The invention aims to solve the technical problem of providing the fixing device which is favorable for fixing and healing the patella fracture, the fixing device can easily tighten the steel wire during fixing, so that the fixing is firm, and meanwhile, the ligament and fascia are prevented from being damaged during the process of feeding the steel wire, the blood circulation is protected, and the fracture healing is favorable.
The technical scheme for solving the technical problems is as follows:
the fixing device comprises a fixing needle, a wire feeding plate, a push rod and a handle, wherein a limit bulge is arranged at the rear part of a needle body of the fixing needle, the position of the limit bulge is a contact part between the needle body and the outer side of the patella after the fixing needle is inserted into the patella, a groove is arranged on a needle body below the limit bulge, the groove is opposite to the limit bulge, the groove is in a semicircular arc shape, the circular arc diameter of the groove is matched with the diameter of a steel wire, and a breaking groove is arranged on the needle body at the rear part of the groove; the wire feeding plate is a strip-shaped plate, the wire feeding plate is in a curved arc shape in the length direction of the plate surface, the curvature of the arc shape is matched with the curvature of the upper surface of the patella, the front end of the push rod is connected with the rear end of the wire feeding plate in the length direction, the rear end of the push rod is connected with the handle, a steel wire hole penetrating through the front and rear of the rod body is formed in the rod body of the push rod, the diameter of the steel wire hole is matched with the diameter of the steel wire, a wire feeding groove along the length direction of the wire feeding plate is formed in the lower bottom surface of the wire feeding plate, the groove width and the groove depth of the wire feeding groove are larger than the diameter of the steel wire, and the steel wire hole of the push rod is opposite to the wire feeding groove.
The fixing device beneficial to patella fracture fixation and healing is characterized in that the limiting protrusion is conical, and the conical small-diameter end of the limiting protrusion is opposite to the patella.
The fixing device beneficial to patella fracture fixation and healing is characterized in that the front end of the wire feeding plate is arc-shaped, the front end of the bottom surface of the wire feeding plate is in smooth connection with the front end of the top surface of the wire feeding plate through an arc surface, the wire feeding plate is in a curved arc shape in the width direction of the plate surface, and the curvature of the arc shape is matched with that of the upper surface of the patella.
The fixing device beneficial to patella fracture fixation and healing is characterized in that the section of the wire feeding groove of the wire feeding plate is inverted-delta-shaped, the upper part of the delta-shaped structure of the wire feeding groove is the width of three steel wire diameters, the lower part of the delta-shaped structure of the wire feeding groove is the width of one steel wire diameter, and the upper part and the lower part of the delta-shaped structure of the wire feeding groove are communicated.
The fixing device beneficial to patella fracture fixation and healing is characterized in that two push rods are arranged, the front ends of the two push rods are respectively connected with the rear ends of the wire feeding plates, and the steel wire holes of the two push rods are respectively opposite to the two sides of the upper part of the wire feeding groove of the triangular structure of the wire feeding plates.
The beneficial effects of the invention are as follows:
the needle body of the fixing needle is provided with the limiting bulge, the fixing needle can penetrate into the patella and then be positioned, the groove at the limiting bulge freely penetrates through the steel wire, and the steel wires at the two sides are simultaneously twisted in the twisting process, so that the fixing is firm, and the defect of clamping the steel wires by the needle door of the existing patella bone needle is avoided; the wire feeding plate can be placed with steel wires through the lower part of the ligament and fascia on the surface of the patella, has small wound, avoids damage to the ligament and fascia, protects blood circulation and is beneficial to fracture healing.
The invention is the initiative of the minimally invasive fixation of the patella fracture, has the advantages of simple structure, convenient operation, good fixation effect, damage avoidance and contribution to fracture healing, solves the problems existing in the minimally invasive fixation of the patella fracture in the prior art, provides technical support for the development of minimally invasive surgery in the fixation of the patella fracture, is welcomed by medical staff and patients, and has excellent popularization and use values in industry.
Drawings
FIG. 1 is a schematic view of the structure of the fixing needle of the present invention;
FIG. 2 is a schematic view of the structure of the wire feeding plate of the present invention;
fig. 3 is a schematic view of the use state of the present invention.
The figures are labeled as follows: the fixing needle 1, the limiting bulge 2, the groove 3, the breaking groove 4, the wire feeding plate 5, the push rod 6, the handle 7, the wire feeding groove 8 and the patella 9.
Detailed Description
The invention comprises a fixed needle 1, a wire feeding plate 5, a push rod 6 and a handle 7.
Fig. 1 and 3 show that the needle body of the fixing needle 1 is a kirschner wire, the rear part of the needle body of the fixing needle 1 is provided with a limiting bulge 2, the limiting bulge 2 is conical, and the conical small diameter end of the limiting bulge is opposite to the patella. The position of the limiting bulge 2 is the contact position between the needle body and the outer side of the patella 9 after the fixing needle 1 is inserted into the patella 9, the limiting bulge 2 has the function of enabling the tip of the fixing needle 1 to be just exposed out of the other side of the patella 9 after the fixing needle 1 penetrates into the patella 9 perpendicular to a fracture line, and the fixing needle is used for winding steel wires, and the lengths from the tip of the fixing needle 1 to the limiting bulge 2 are different and are divided into different models, so that the fixing needle is suitable for different patients.
Fig. 1 and 3 show that the lower needle body of the limit bulge 2 of the fixing needle 1 is provided with a groove 3, the groove 3 is opposite to the limit bulge 2, the groove 3 is in a semicircular arc shape, the circular arc diameter of the groove 3 is matched with the diameter of the steel wires, and if two steel wires are embedded, the circular arc diameter of the groove is larger than the diameter of the two steel wires. The function of the groove 3 is to locate the wire as it is wrapped around the patella 9 so that the wire does not slide back and forth along the body of the fixed needle 1. The semicircular groove 3 can eliminate the defect that the steel wire is difficult to pull after the steel wire is clamped by the traditional patella needle door, and avoid the unstable fixation of the steel wire to the patella 9.
Fig. 1 and 3 show that the needle body at the rear part of the groove of the fixing needle 1 is provided with a breaking groove 4, and the fixing needle 1 is broken from the breaking groove 4 after the fixing needle 1 and the steel wire fix the patella 9.
Fig. 2 and 3 show that the wire feeding plate 5 is a strip-shaped plate, the front end of the wire feeding plate 5 is arc-shaped, the front end of the bottom surface of the wire feeding plate 5 is in smooth connection with the front end of the top surface of the wire feeding plate 5 through an arc surface, the wire feeding plate 5 is respectively in a curved arc shape in the length direction and the width direction of the plate surface, and the curvature of the arc shape is matched with the curvature of the upper surface of the patella 9. Such a shape facilitates insertion under the ligaments and fascia on the upper surface of the patella 9 and allows the bottom surface of the wire-feed plate 5 to closely conform to the surface of the patella 9.
Fig. 2 and 3 show that the rear end of the wire feeding plate 5 is connected with a push rod 6, a steel wire hole penetrating through the front and rear of the rod body is formed in the rod body of the push rod 6, the diameter of the steel wire hole is matched with that of a steel wire, and the steel wire can pass through the push rod 6 and then reach the rear of the wire feeding plate 5 to enter the wire feeding plate 5. The rear end of the push rod 6 is connected with a handle 7, and the push rod 6 and the wire feeding plate 5 can be pushed to move forwards together through the handle 7.
Fig. 2 shows that the wire feeding groove 8 is formed in the lower bottom surface of the wire feeding plate 5 along the length direction of the wire feeding plate 5, the groove width and the groove depth of the wire feeding groove 8 are larger than the diameter of the steel wire, and the steel wire hole of the push rod 6 is opposite to the wire feeding groove 8.
Fig. 2 shows that the section of the wire feeding groove 8 of the wire feeding plate 5 is inverted-delta-shaped, the upper part of the delta-shaped structure of the wire feeding groove 8 is the width of three wire diameters, the lower part of the delta-shaped structure of the wire feeding groove 8 is the width of one wire diameter, and the upper part and the lower part of the delta-shaped structure of the wire feeding groove 8 are communicated.
Fig. 2 and 3 show that two push rods 6 are provided, the front ends of the two push rods 6 are respectively connected with the rear ends of the wire feeding plates 5, and the wire holes of the two push rods 6 are respectively opposite to the two sides of the upper part of the wire feeding groove 8 with the delta-shaped structure of the wire feeding plates 5. By adopting the structure, two steel wires can pass through the lower part of the ligament and fascia on the upper surface of the patella 9 through the wire feeding plate 5 at a time, so that the process of fixing the patella 9 by the steel wires is faster and more convenient.
The application process of the invention is as follows:
firstly, drilling a fractured patella 9, penetrating a fixing needle 1 at a position, perpendicular to a fracture line, of the patella 9, enabling the tip of the fixing needle 1 to be just exposed out of one side of the patella 9, propping a limit bulge 2 of the fixing needle 1 against the edge of the other side of the patella 9, and breaking the fixing needle 1 from a breaking groove 4;
then, judging the shape-moving position of the steel wire along the direction of the fixed needle 1, inserting the wire feeding plate 5 below the ligament and fascia on the surface of the patella 9, and making a tunnel on the fascia and the ligament on the surface of the patella 9 along the surface of the patella 9 by the wire feeding plate 5;
one end of the steel wire bypasses the tip of the fixed needle 1, the steel wire is placed in a wire feeding groove 8 of the wire feeding plate 5 through a steel wire hole of a push rod 6 behind the wire feeding plate 5, the crossed steel wire is pushed to the other side of the patella 9 along a tunnel of the wire feeding plate 5 under fascia and ligament, the steel wire bypasses a groove 3 below a limit bulge 2 of the fixed needle 1 to fasten the patella 9 in a winding manner, and the double-side steel wire is simultaneously twisted and firmly fastened in the twisting process.
Claims (3)
1. A fixing device which is favorable for fixing and healing patella fracture, and is characterized in that: the novel needle comprises a fixed needle (1), a wire feeding plate (5), a push rod (6) and a handle (7), wherein a limit bulge (2) is arranged at the rear part of a needle body of the fixed needle (1), the position of the limit bulge (2) is the contact part between the needle body and the outer side of a patella (9) after the fixed needle (1) is inserted into the patella (9), a groove (3) is arranged on a needle body below the limit bulge (2), the groove (3) is opposite to the limit bulge (2), the groove (3) is in a semicircular arc shape, the circular arc diameter of the groove (3) is matched with the diameter of a steel wire, and a breaking groove (4) is arranged on the needle body at the rear part of the groove (3); the wire feeding plate (5) is a strip-shaped plate, the wire feeding plate (5) is in a curved arc shape in the length direction of the plate surface, the curvature of the arc shape is matched with the curvature of the upper surface of the patella (9), the front end of the push rod (6) is connected to the rear end of the wire feeding plate (5) in the length direction, the rear end of the push rod (6) is connected with the handle (7), a wire hole penetrating through the front and rear of the rod body is formed in the rod body of the push rod (6), the diameter of the wire hole is matched with the diameter of a wire, a wire feeding groove (8) along the length direction of the wire feeding plate (5) is formed in the lower bottom surface of the wire feeding plate (5), the groove width and the groove depth of the wire feeding groove (8) are larger than the diameter of the wire, and the wire hole of the push rod (6) is opposite to the wire feeding groove (8); the section of a wire feeding groove (8) of the wire feeding plate (5) is inverted-delta-shaped, the upper part of the delta-shaped structure of the wire feeding groove (8) is three widths with the diameter of a steel wire, the lower part of the delta-shaped structure of the wire feeding groove (8) is one width with the diameter of the steel wire, and the upper part and the lower part of the delta-shaped structure of the wire feeding groove (8) are communicated; the two push rods (6) are arranged, the front ends of the two push rods (6) are respectively connected with the rear ends of the wire feeding plates (5), and the steel wire holes of the two push rods (6) are respectively opposite to the two sides of the upper part of the wire feeding groove (8) with the inverted-Y-shaped structure of the wire feeding plates (5).
2. The fixation device for facilitating fixation and healing of a patellar fracture according to claim 1, wherein: the limit bulge (2) is conical, and the conical small-diameter end of the limit bulge (2) is opposite to the patella (9).
3. The fixation device for facilitating fixation and healing of patellar fractures according to claim 1 or 2, wherein: the front end of the wire feeding plate (5) is arc-shaped, the front end of the bottom surface of the wire feeding plate (5) is in smooth connection with the front end of the top surface of the wire feeding plate (5) through an arc surface, the wire feeding plate (5) is in a curved arc shape in the width direction of the plate surface, and the curvature of the arc shape is matched with the curvature of the upper surface of the patella (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710348119.1A CN107184266B (en) | 2017-05-17 | 2017-05-17 | Fixing device beneficial to patella fracture fixation and healing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710348119.1A CN107184266B (en) | 2017-05-17 | 2017-05-17 | Fixing device beneficial to patella fracture fixation and healing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107184266A CN107184266A (en) | 2017-09-22 |
| CN107184266B true CN107184266B (en) | 2023-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710348119.1A Active CN107184266B (en) | 2017-05-17 | 2017-05-17 | Fixing device beneficial to patella fracture fixation and healing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107184266B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201119909Y (en) * | 2007-08-22 | 2008-09-24 | 李家立 | Fracture of patella internal fixation needle with holes and capable of being broken |
| JP2010284479A (en) * | 2009-06-12 | 2010-12-24 | Hidetaka Ko | Guide instrument for trephine drill |
| CN202355461U (en) * | 2011-12-16 | 2012-08-01 | 王振海 | Patella fracture steel wire guider |
| CN202699261U (en) * | 2012-07-10 | 2013-01-30 | 上海市第一人民医院宝山分院 | Patellar fracture reduction fixation guider |
| CN202801777U (en) * | 2012-10-17 | 2013-03-20 | 唐浩 | Reduction pin for treatment of patella fracture through fixation of closed reduction tension band |
| CN105030314A (en) * | 2015-06-03 | 2015-11-11 | 张英泽 | Low-profile peri-locking circular patellar setting fixator |
| CN204909608U (en) * | 2015-08-25 | 2015-12-30 | 张群 | Kneecap locking pressurizing internal fixation device |
| CN207532437U (en) * | 2017-05-17 | 2018-06-26 | 陈伟 | A kind of fixing device fixed and healed conducive to patellar fracture |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7037308B2 (en) * | 2001-02-12 | 2006-05-02 | Medoff Robert J | Implant device for applying compression across a fracture site |
-
2017
- 2017-05-17 CN CN201710348119.1A patent/CN107184266B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201119909Y (en) * | 2007-08-22 | 2008-09-24 | 李家立 | Fracture of patella internal fixation needle with holes and capable of being broken |
| JP2010284479A (en) * | 2009-06-12 | 2010-12-24 | Hidetaka Ko | Guide instrument for trephine drill |
| CN202355461U (en) * | 2011-12-16 | 2012-08-01 | 王振海 | Patella fracture steel wire guider |
| CN202699261U (en) * | 2012-07-10 | 2013-01-30 | 上海市第一人民医院宝山分院 | Patellar fracture reduction fixation guider |
| CN202801777U (en) * | 2012-10-17 | 2013-03-20 | 唐浩 | Reduction pin for treatment of patella fracture through fixation of closed reduction tension band |
| CN105030314A (en) * | 2015-06-03 | 2015-11-11 | 张英泽 | Low-profile peri-locking circular patellar setting fixator |
| CN204909608U (en) * | 2015-08-25 | 2015-12-30 | 张群 | Kneecap locking pressurizing internal fixation device |
| CN207532437U (en) * | 2017-05-17 | 2018-06-26 | 陈伟 | A kind of fixing device fixed and healed conducive to patellar fracture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107184266A (en) | 2017-09-22 |
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