CN109350213A - A kind of bone pressurizing tool, bone pressurize fixed device and bone pressurizes fixing means - Google Patents
A kind of bone pressurizing tool, bone pressurize fixed device and bone pressurizes fixing means Download PDFInfo
- Publication number
- CN109350213A CN109350213A CN201811374677.6A CN201811374677A CN109350213A CN 109350213 A CN109350213 A CN 109350213A CN 201811374677 A CN201811374677 A CN 201811374677A CN 109350213 A CN109350213 A CN 109350213A
- Authority
- CN
- China
- Prior art keywords
- bone
- pressure rod
- swingle
- pressurizing tool
- steel plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8004—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones
- A61B17/8014—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones the extension or compression force being caused by interaction of the plate hole and the screws
-
- 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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
- A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
-
- 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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/808—Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms
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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 present invention relates to medical instruments fields, and in particular to a kind of bone pressurizing tool, bone pressurize fixed device and bone pressurizes fixing means.A kind of bone pressurizing tool, including pressure rod and swingle, the swingle are set in the outside of the pressure rod and are spirally connected with the pressure rod, and the swingle is stretched out on the head of the pressure rod, and the head of the pressure rod is provided with drill bit and the first screw thread.By the way that mutually matched pressure rod and swingle is arranged, in use, pressure rod has holding effect to farther away broken bone, the top of swingle can then push closer broken bone, also have impetus power to closer broken bone.Such steel plate will not press bone surface, and then damage bone surface, be unfavorable for fracture site recovery.It is inadequate to the holding power of broken bone to solve bone pressurizing tool in the prior art, easily leads to steel plate damage bone surface, is unfavorable for the problem of fracture site restores.
Description
Technical field
The present invention relates to medical instruments fields, and in particular to a kind of bone pressurizing tool, bone pressurize fixed device and bone pressurization
Fixing means.
Background technique
Fracture is a kind of more typical disease, generallys use steel plate and is fixed, in fixation procedure, need to broken bone into
Row pressurization, is reduced gap between bone, is then fixed using lock screw.In the prior art, the pulling force of half-thread is often used
Screw pressurizes to broken bone, reduces gap between bone.
As shown in Figs. 1-2, in the prior art, bone pressurizing tool 1 ' is the lag screw of half-thread, the nut of lag screw
For taper, bellmouth 21 ' is provided on steel plate 2 ', lag screw passes through to be extend into broken bone in bellmouth 21 ', the spiral shell of lag screw
Line section passes through the first broken bone 3 ' and extend into the second broken bone 4 '.During pressurization, lag screw is screwed inwardly into, due to pulling force
Screw is the lag screw of half-thread, therefore lag screw can only hold on the second broken bone 4 ' by thread segment, and light bar segment lacks
To the holding power of bone, lag screw is caused to act on the first broken bone 3 ' without holding, in pressure process, the nut of lag screw can band
Dynamic steel plate 2 ' is close to bone surface, and periosteum is caused to oppress, and damage bone surface blood fortune is unfavorable for the recovery of fracture site.
Summary of the invention
It is inadequate to the holding power of broken bone in order to solve bone pressurizing tool in the prior art, easily lead to steel plate damaged bone table
Face, is unfavorable for the problem of fracture site restores, the present invention propose a kind of bone pressurizing tool, bone pressurize fixed device and bone pressurization it is solid
Determine method, solves above-mentioned technical problem.Technical scheme is as follows:
A kind of bone pressurizing tool, including pressure rod and swingle, the swingle are set in the outside of the pressure rod simultaneously
Be spirally connected with the pressure rod, the swingle is stretched out on the head of the pressure rod, the head of the pressure rod be provided with drill bit and
First screw thread.
By the way that mutually matched pressure rod and swingle is arranged, make in use, pressure rod has farther away broken bone to hold
With the top of swingle can then push closer broken bone, also have impetus power to closer broken bone.Such steel plate will not be tight
Bone surface is pressed, and then damages bone surface, is unfavorable for fracture site recovery.
Further, the swingle includes spiro union portion and handle part, is provided in the spiro union portion axially extending interior
Screw thread, the spiro union portion are spirally connected with the pressure rod, and the handle part is fixedly connected with the spiro union portion.
Further, the swingle is T-shaped.
Further, the outer surface of the pressure rod is provided with the second screw thread with screw-internal thread fit, the pressure rod
Tail portion is provided with interface.
It further, further include the anti-rotation handle for preventing pressure rod from rotating.
Further, the anti-rotation handle prevents pressure rod from rotating with the Interference fit.
A kind of bone pressurizes fixed device, including steel plate and bone pressurizing tool, is provided with bellmouth on the steel plate, the bone adds
The head of pressure tool may pass through the bellmouth.
A kind of bone pressurization fixing means, is pressurizeed using bone and fixes device, included the following steps:
S1, Interal fixation are in bone surface；
S2, pressure rod is pierced into broken bone region using electric drill；
S3, swingle is spun on pressure rod, the top of swingle passes through the bellmouth of steel plate；
S4, it keeps pressure rod static, rotates swingle, compress gap between broken bone.
It further, further include closing on bone pressurizing tool on the steel plate after gap is compressed into normal level between S5, broken bone
Bellmouth be built into lock screw.
Further, further include S6, exit bone pressurizing tool, be placed in lock screw.
Based on the above-mentioned technical proposal, the technical effect achieved by the present invention are as follows:
1. bone pressurizing tool of the invention holds broken bone, swingle farther out by pressure rod and pushes relatively close broken bone, enhancing pair
The holding power of broken bone, gap between the broken bone of Efficient Compression；
The fixed device 2. bone of the invention pressurizes, is cooperated using bone pressurizing tool and steel plate, in the course of work, pressure rod
Head can pierce broken bone region directly through the bellmouth of steel plate, and the outer diameter on the head of swingle is less than the aperture of bellmouth,
In swingle rotation process, swingle cooperates pressure rod to compress gap between broken bone, presses bone surface without will drive steel plate, oppresses
Periosteum damages bone surface；
The fixing means 3. bone of the invention pressurizes, is pressurizeed using bone and fixes device, first passed through bone pressurizing tool and pressurize,
Gap between compression bone, is built into lock screw in the fixation hole of the steel plate of bone pressurizing tool surrounding, is then log out bone pressurizing tool,
It is placed in lock screw, normal holding power can be maintained.
Detailed description of the invention
Fig. 1 is bone pressurizing tool in the prior art in perisystolic state of not pressurizeing；
State of the Fig. 2 for bone pressurizing tool in the prior art after pressurization is shunk；
Fig. 3 is the structural schematic diagram of bone pressurizing tool of the invention；
Fig. 4 is the structural schematic diagram of the pressure rod of bone pressurizing tool of the invention；
Fig. 5 is the structural schematic diagram of the swingle of bone pressurizing tool of the invention；
Fig. 6 is the structural schematic diagram of the anti-rotation handle of bone pressurizing tool of the invention；
Fig. 7 is that bone of the invention pressurizes fixed device in perisystolic state of not pressurizeing；
Fig. 8 is that bone of the invention pressurizes fixed device in the state after shrinking of pressurizeing；
Fig. 9 is the state of the fixed device of bone pressurization of the invention after locking.
In figure: 1- bone pressurizing tool；11- pressure rod；111- drill bit；The first screw thread of 112-；The second screw thread of 113-；114- connects
Mouthful；12- swingle；121- spiro union portion；1211- internal screw thread；122- handle part；The anti-rotation handle of 13-；131- mounting hole；2- steel plate；
21- bellmouth；The broken bone of 3- first；The broken bone of 4- second；5- lock screw；1 '-bone pressurizing tool；2 '-steel plates；21 '-bellmouths；
3 '-the first broken bones；4 '-the second broken bones.
Specific embodiment
The contents of the present invention are further described with reference to the accompanying drawings of the specification.
As shown in figs. 3-9, a kind of bone pressurizing tool is present embodiments provided, for cooperating steel plate in the case where fracture
Pressurization fixation is carried out to broken bone, the bone pressurizing tool of the present embodiment enhances the holding power to broken bone, avoids in pressure process,
Steel plate squeezes bone surface and destroys capillary in periosteum, to influence blood fortune, plays reaction to fracture end recovery.
Bone pressurizing tool 1 in the present embodiment includes pressure rod 11, swingle 12 and anti-rotation handle 13, and 12 sets of swingle exists
11 outside of pressure rod is simultaneously spirally connected with pressure rod 11, and swingle 12 can be rotated relative to pressure rod 11, be existed to change swingle 12
Axial position on pressure rod 11.Swingle 12 is stretched out on the head of pressure rod 11, conveniently extend into broken bone region, anti-rotation handle 13
It is connect with the rear removable of pressure rod 11, in pressure process, pressure rod 11 can be prevented with rotation by anti-rotation handle 13
Bar 12 rotates.
Pressure rod 11 is stock, and the head of pressure rod 11 is provided with drill bit 111 and the first screw thread 112, and pressure rod 11 passes through
Drill bit 111 is drilled into inside broken bone region, and the first screw thread 112 has holding power to broken bone；The outer surface of pressure rod 11 is provided with
Second screw thread 113, in the present embodiment, the second screw thread 113 be arranged in pressure rod 11 by caudal outer surface.Pressure rod 11
Tail portion is provided with interface 114, and pressure rod 11 is connect by interface 114 with electric drill, facilitates electric drill that pressure rod 11 is driven to pierce broken bone
Region.
Swingle 12 is screwed onto the outside of pressure rod 11, and swingle 12 includes spiro union portion 121 and handle part 122, spiro union portion
121 sets of outsides in pressure rod 11 are provided with internal screw thread 1211, internal screw thread 1211 and the second screw thread 113 on 121 inner wall of spiro union portion
Cooperation.122 spiro union portion 121 of handle part is fixedly connected or is integrally formed with handle part 122, by acting on 122 application of handle part
Power can drive spiro union portion 121 to rotate relative to pressure rod 11, and in the case that pressure rod 11 is fixed, swingle 12 can be relative to
Pressure rod 11 is axially moved, and the top of swingle 12 can be realized close to the top of pressure rod 11, is pressurizeed to broken bone.It is preferred that
Ground, swingle 12 is T-shaped, and spiro union portion 121 is vertically arranged with handle part 122.
The tail end of anti-rotation handle 13 and pressure rod 11 is detachably connected, and when rotating swingle 12, can pass through anti-rotation handle
13 prevent pressure rod 11 from rotating with swingle 12, realize that swingle 12 is axially moved relative to pressure rod 11.Anti-rotation handle 13 is logical
It crosses and cooperates with the interface 114 on pressure rod 11, prevent pressure rod 11 from rotating with swingle 12.Specifically, it is set on anti-rotation handle 13
Be equipped with mounting hole 131, anti-rotation handle 13 is set in the tail end of pressure rod 11 by mounting hole 131, the shape of mounting hole 131 with plus
The shape of the interface 114 of the tail end of compression bar 11 is adapted.Preferably, mounting hole 131 is triangular hole in the present embodiment.
The present embodiment also provides a kind of bone and pressurizes fixed device, including above-mentioned bone pressurizing tool 1 and steel plate 2, on steel plate 2
It is provided with bellmouth 21, the head of bone pressurizing tool 1 passes through bellmouth 21 and pressurizes to broken bone.Specifically, bone pressurizing tool 1
The outer diameter on the head of swingle 12 is less than the minimum diameter of bellmouth 21.
The present embodiment also provides a kind of bone pressurization fixing means, is pressurizeed using above-mentioned bone and fixes device, included the following steps:
S1, steel plate 2 are fixed on bone surface；
S2, pressure rod 11 is pierced into broken bone region across steel plate 2 using electric drill；
S3, swingle is spun on pressure rod, the top of swingle passes through the bellmouth of steel plate；
S4, it keeps pressure rod static, rotates swingle, compress gap between broken bone.
In step S1, steel plate 2 is fixed on bone surface, and specifically, the bellmouth 21 on steel plate 2 is along the direction close to bone surface
Decreasing pore size.
In step S2, electric drill is connect with the interface 114 of the tail portion of pressure rod 11, and the head of pressure rod 11 is passed through steel plate 2
Broken bone region is pierced, as shown in fig. 7, to reduce between the first broken bone 3 and the second broken bone 4 for spacing, the head of pressure rod 11
Steel plate 2 and the first broken bone 3 are sequentially passed through, is extend into the second broken bone 4.After pressure rod 11 gets into required position, electric drill is removed.
In step S3, swingle 12 is spun on pressure rod 11 by internal screw thread 1211 and the second screw thread 113, swingle 12
The extended bellmouth 21 in head is against on the first broken bone 3.
In step S4, pressure rod 11 can be prevented with swingle 12 by connecting anti-rotation handle 13 in the tail portion of pressure rod 11
Rotation.The head of pressure rod 11 has holding power to the second broken bone 4, and the head of swingle 12 resists the first broken bone 3, such steel plate
2 will not be close to bone surface, can also be achieved gap between the broken bone of Fast Compression.
It further include that bone pressurizing tool 1 is closed on steel plate 2 after gap is compressed into normal level between step S5, broken bone
Bellmouth 21 is built into lock screw 5, as shown in Figure 8.
Further include step S6, exit bone pressurizing tool, is placed in lock screw 5, as shown in Figure 9.Lock screw 5 is full thread
Screw can maintain normal holding power.Preferably, the model of first screw thread 111 on the head of pressure rod 11 is less than lock screw
5, in this way, the lock screw 5 of merging can maintain normal holding power after bone pressurizing tool 1 exits.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode within the knowledge of a person skilled in the art can also be in the premise for not departing from spirit of the invention
Under make a variety of changes.
Claims (10)
1. a kind of bone pressurizing tool, which is characterized in that including pressure rod (11) and swingle (12), the swingle (12) is arranged
The pressure rod (11) outside and be spirally connected with the pressure rod (11), the rotation is stretched out on the head of the pressure rod (11)
The head of bar (12), the pressure rod (11) is provided with drill bit (111) and the first screw thread (112).
2. a kind of bone pressurizing tool as described in claim 1, which is characterized in that the swingle (12) includes spiro union portion
(121) and handle part (122) axially extending internal screw thread (1211), the spiro union portion, are provided in the spiro union portion (121)
(121) it is spirally connected with the pressure rod (11), the handle part (122) is fixedly connected with the spiro union portion (121).
3. a kind of bone pressurizing tool as claimed in claim 2, which is characterized in that the swingle (12) is T-shaped.
4. such as a kind of described in any item bone pressurizing tools of claim 2-3, which is characterized in that the appearance of the pressure rod (11)
Face is provided with the second screw thread (113) with internal screw thread (1211) cooperation, and the tail portion of the pressure rod (11) is provided with interface
(114)。
5. a kind of bone pressurizing tool as claimed in claim 4, which is characterized in that further include preventing preventing for pressure rod (11) rotation
It revolves handle (13).
6. a kind of bone pressurizing tool as claimed in claim 5, which is characterized in that the anti-rotation handle (13) and the interface
(114) cooperation prevents the pressure rod (11) from rotating.
The fixed device 7. a kind of bone pressurizes, which is characterized in that including steel plate (2) and bone as claimed in any one of claims 1 to 6
Pressurizing tool is provided with bellmouth (21) on the steel plate (2), and the head of the bone pressurizing tool (1) may pass through the bellmouth
(21)。
The fixing means 8. a kind of bone pressurizes, which is characterized in that it is pressurizeed using bone as claimed in claim 7 and fixes device, including
Following steps:
S1, steel plate (2) are fixed on bone surface；
S2, pressure rod (11) is pierced into broken bone region using electric drill；
S3, swingle (12) is spun on pressure rod (11), the top of swingle (12) passes through the bellmouth (21) of steel plate (2)；
S4, it keeps pressure rod (11) static, rotates swingle (12), compress gap between broken bone.
The fixing means 9. a kind of bone as claimed in claim 8 pressurizes, which is characterized in that further include between S5, broken bone gap pressed
After being reduced to normal level, the bellmouth (21) that bone pressurizing tool (1) is closed on steel plate (2) is built into lock screw (5).
The fixing means 10. a kind of bone as claimed in claim 9 pressurizes, which is characterized in that further include S6, exit bone pressurizing tool
(1), lock screw (5) are placed in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811374677.6A CN109350213A (en) | 2018-11-19 | 2018-11-19 | A kind of bone pressurizing tool, bone pressurize fixed device and bone pressurizes fixing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811374677.6A CN109350213A (en) | 2018-11-19 | 2018-11-19 | A kind of bone pressurizing tool, bone pressurize fixed device and bone pressurizes fixing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109350213A true CN109350213A (en) | 2019-02-19 |
Family
ID=65332195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811374677.6A Pending CN109350213A (en) | 2018-11-19 | 2018-11-19 | A kind of bone pressurizing tool, bone pressurize fixed device and bone pressurizes fixing means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109350213A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992004875A1 (en) * | 1990-09-24 | 1992-04-02 | David Mark Allison | Bone fixing device |
| US20110137356A1 (en) * | 2008-08-12 | 2011-06-09 | Uso-Ck, Llc | Bone compression device and methods |
| US20150250509A1 (en) * | 2012-10-08 | 2015-09-10 | P. Kannan | Orthopedic external compression plate |
| US20180221066A1 (en) * | 2014-12-15 | 2018-08-09 | Smith & Nephew, Inc. | Active fracture compression implants |
| CN209236354U (en) * | 2018-11-19 | 2019-08-13 | 创辉医疗器械江苏有限公司 | A kind of bone pressurizing tool and bone pressurize fixed device |
-
2018
- 2018-11-19 CN CN201811374677.6A patent/CN109350213A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992004875A1 (en) * | 1990-09-24 | 1992-04-02 | David Mark Allison | Bone fixing device |
| US20110137356A1 (en) * | 2008-08-12 | 2011-06-09 | Uso-Ck, Llc | Bone compression device and methods |
| US20150250509A1 (en) * | 2012-10-08 | 2015-09-10 | P. Kannan | Orthopedic external compression plate |
| US20180221066A1 (en) * | 2014-12-15 | 2018-08-09 | Smith & Nephew, Inc. | Active fracture compression implants |
| CN209236354U (en) * | 2018-11-19 | 2019-08-13 | 创辉医疗器械江苏有限公司 | A kind of bone pressurizing tool and bone pressurize fixed device |
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