CN104783874A - Reduction device and method for femoral shaft fractures - Google Patents
Reduction device and method for femoral shaft fractures Download PDFInfo
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- CN104783874A CN104783874A CN201510213291.7A CN201510213291A CN104783874A CN 104783874 A CN104783874 A CN 104783874A CN 201510213291 A CN201510213291 A CN 201510213291A CN 104783874 A CN104783874 A CN 104783874A
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- reset
- air bag
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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
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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
- A61B2017/564—Methods for bone or joint treatment
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
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Abstract
The invention discloses a reduction device for femoral shaft fractures. The reduction device comprises a reduction sleeve, a reduction air bag set composed of a plurality of reduction air bags and a compressor. The reduction air bags are located in an inner cavity of the reduction sleeve, one side of each reduction air bag is fixedly connected to the inner wall of the reduction sleeve, and each reduction air bag is provided with an air inlet which penetrates through the reduction sleeve and is located outside the reduction sleeve. The air inlets are connected with the compressor through a pressure regulating valve set. The side, close to the human body, of each reduction air bag is pasted with a thin film resistance strain type pressure transducer. The reduction device can finish femoral shaft fracture reduction on the premise that X-ray imaging is not shielded, percutaneous fixation is achieved and secondary injury is avoided, and preparation is made for following intramedullary nail implantation. The invention further provides a reduction method of the reduction device. The method is simple and easy to implement, and reduction of the fractures can be achieved.
Description
Technical field
The present invention relates to operating robot field, specifically, relate to a kind of resetting means for fracture of shaft of femur and repositioning method.
Background technology
Along with the arrival in biological osteosynthesis BO (Biological Osteosynthesis) period, closed reduction Intramedullary nailing has become the goldstandard therapeutic modality of fracture of shaft of femur, and its core is exactly Wicresoft or noinvasive closed reduction.By extension table, the fracture site of fracture along the displacement of femur long axis direction overlap is fully drawn out during operation, then doctor utilizes maneuver or apparatus to assist to obtain interim reset, to insert golden finger or guide pin, intramedullary pin is implanted after expanding marrow, finally complete far and near end interlocking, complete under the supervision that whole operation have an X-rayed in C arm machine and guiding.This brings iatrogenic radiation injury to doctor and patient.For most of doctor, the closed reduction relying on experiential operating is not one and easily works, and the long-time closed reduction state maintaining satisfaction has more challenge, until today, how avoiding the reset in operation process to lose is still the difficult problem that orthopaedic trauma doctor faces.Given this, Chinese scholars begins one's study mechanical assistance reduction of the fracture technology, and manufactured and designed several test fracture of shaft of femur and to have resetted machinery, but these machinerys exist volume too heavy, disturb operation technique, block X-ray imaging or the shortcomings such as secondary damage are caused to human body.
Summary of the invention
Technical problem: technical problem to be solved by this invention is: a kind of resetting means for fracture of shaft of femur is provided, can meet not blocking X-ray imaging, percutaneous is fixed, without the prerequisite of secondary damage under complete fracture of shaft of femur and reset, for follow-up intramedullary pin is implanted ready; The repositioning method of this resetting means is also provided, simple to operation, can realize the reduction of the fracture.
Technical scheme: for solving the problems of the technologies described above, the present invention adopts following technical scheme:
For a resetting means for fracture of shaft of femur, the reset air bag group that this resetting means comprises reset sleeve, is made up of multiple reset air bag, and compressor; Reset air bag is arranged in the inner chamber of reset sleeve, and the side of reset air bag is fixedly connected on the inwall of reset sleeve, and each reset air bag is provided with an air inlet, and this air inlet, through reset sleeve, is positioned at the outside of reset sleeve; Air inlet is connected with compressor by pressure regulator valve group; Each reset air bag, near the one side of human body, is stained with film resistor strain pressure transducer.
As a kind of embodiment, described reset air bag evenly and be parallel to each other and be laid in the inner chamber of reset sleeve.
As a kind of embodiment, described reset air bag is fixedly connected on the inwall of reset sleeve by the first magic tape.
As a kind of embodiment, described compressor is medical air compressor.
As a kind of embodiment, described reset sleeve is made up of saturating X-ray material.
As a kind of embodiment, described reset sleeve comprises sleeve upper slice and sleeve bottom sheet, and the side that sleeve upper slice is relative with sleeve bottom sheet is connected through the hinge, and relative opposite side is connected by the second magic tape.
As a kind of embodiment, described reset air bag is made up of soft material, and reset gasbag outer surface covers one deck nylon cloth.
As a kind of embodiment, described pressure regulator valve group comprises multiple pressure regulator valve, and the air inlet of reset air bag is connected with pressure regulator valve one end, and the other end of pressure regulator valve is connected with compressor.
A kind of repositioning method of the resetting means for fracture of shaft of femur, this repositioning method comprises following process: resetting means is sleeved on fracture place, and select the reset air bag at fracture place to be connected with pressure regulator valve group, air compressor provides source of the gas, then actual for the human body reset force be subject to is fed back to control system by film resistor strain pressure transducer in real time, control system is according to the reset force information received, the air pressure of measuring and calculating reset air bag, inflation and the venting of reset air bag is controlled again by controlling pressure regulator valve group, to adjust the air pressure in reset air bag, realize applying reset force to fracture, complete the reset of knochenbruch.
As a kind of embodiment, the reset force that described reset air bag applies, the air pressure of reset air bag and the displacement of reset air bag meet formula (1):
F=f (x) * p+b formula (1)
Wherein, F represents the reset force that reset air bag applies, unit: Niu Dun; F (x) represents the function relevant to displacement x; P represents the air pressure of reset air bag, unit: Pascal; X represents the displacement of reset air bag; B represents the correction value of F, unit: newton.
Beneficial effect: compared with prior art, technical scheme of the present invention has following beneficial effect:
(1) reset force is enough large, and reset effect keeps stable.The reset force of fracture of shaft of femur resetting means of the present invention is produced by the soft gas-pocket thereof of belt restraining, selected soft material is greatly withstand voltage, safe and reliable, can produce enough large tension force in order to the reduction of the fracture under volume constraint, the rear keeping system seal box constant pressure that resetted can ensure that reset effect keeps stable.
(2) X-ray performance is good thoroughly.The soft material selected has good saturating X-ray performance, does not disturb X-ray imaging, does not affect operation and observes.
(3) compact structure, does not affect operation technique.Fracture of shaft of femur resetting means of the present invention only has a cylindrical device in suffering limb region, does not affect the erect-position of doctor and the operation of operation.
(4) easy disassembling, time is short.Different from traditional surgery assistor tool, fracture of shaft of femur resetting means of the present invention is fixed by the first magic tape, convenient to disassembly, without the need to through professional training, can save a large amount of operation preparation time.
(5) structure is simple, easy to manufacture.Fracture of shaft of femur resetting means of the present invention only comprises reset sleeve and reset air bag group and controlled source of the gas, easy to manufacture, with low cost, just with popularization.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 be in the present invention reset sleeve and reset air bag assembling after front view.
Fig. 3 be in the present invention reset sleeve and reset air bag assembling after duty time front isometric view.
Fig. 4 be in the present invention reset sleeve and reset air bag assembling after deployed condition time front isometric view.
Fig. 5 resets the structural representation of air bag in the present invention.
Fig. 6 is the assembling schematic diagram of the present invention for fracture of shaft of femur.
Fig. 7 represents under different displacement, reset air bag export reset force and reset air bag in air pressure between graph of relation.
Have in figure: reset sleeve 1, sleeve upper slice 101, sleeve bottom sheet 102, reset air bag 2, air inlet 201, film resistor strain pressure transducer 202, second magic tape 3, first magic tape 4, compressor 5, pressure regulator valve 6.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in detail.
As shown in Figures 1 to 5, a kind of resetting means for fracture of shaft of femur of the present invention, the reset air bag group comprise reset sleeve 1, being made up of multiple reset air bag 2, and compressor 5.Reset air bag 2 is arranged in the inner chamber of reset sleeve 1, and the side of reset air bag 2 is fixedly connected on the inwall of reset sleeve 1, and each reset air bag 2 is provided with an air inlet 201.This air inlet 201, through reset sleeve 1, is positioned at the outside of reset sleeve 1.Air inlet 201 is connected with compressor 5 by pressure regulator valve 6.Each reset air bag 2, near the one side of human body, is stained with film resistor strain pressure transducer 202.Compressor 5 is preferably medical air compressor.
When the resetting means of said structure works, control system, by regulation and control pressure regulator valve 6, adjusts the air pressure in reset air bag 2, and the reset force that reset air bag 2 pairs of fractures are applied can make the reduction of the fracture.Compressor 5 provides source of the gas for reset air bag 2.As preferably, described reset sleeve 1 comprises sleeve upper slice 101 and sleeve bottom sheet 102, and the side that sleeve upper slice 101 is relative with sleeve bottom sheet 102 is connected through the hinge, and relative opposite side is connected by the second magic tape 3.As shown in Figure 6, reset sleeve 1 adopts sleeve upper slice 101 to be connected with sleeve bottom sheet 102.This resetting means and the fixing of human body are all adopt external fixing, and do not cause secondary damage.Meanwhile, this is also conducive to the installation and removal of reset sleeve 1 at fracture.Sleeve upper slice 101 and sleeve bottom sheet 102 are while be connected by hinging manner, and another side is locked by the second magic tape 3, and controls latched position, adapts to the patient of different building shape.
Resetting means of the present invention be percutaneous fix, do not block X-ray imaging, the simple dismounting of structure convenient, without secondary damage and reset effect is good.This fracture of shaft of femur resetting means is with low cost, processing ease, and adjusting is to be applicable to the patient of different building shape, and rapid decomposable dismounting, is convenient to Aseptic sterilisation.Resetting means of the present invention under the prerequisite not disturbing x-ray imaging, can be controlled outside x-ray imaging region by personnel, completes fracture of shaft of femur reset operation, reduces non-essential radiation exposure.
Further, described reset air bag 2 evenly and be parallel to each other be laid in reset sleeve 1 inner chamber in.Such laying reset air bag 2, makes femur axis vertical with the arranged direction of reset air bag, is convenient to produce position reset force accurately.
Further, described reset air bag 2 is fixedly connected on the inwall of reset sleeve 1 by the first magic tape 4.Reset air bag 2 is fixedly connected with by the first magic tape 4, fixing simple and reliable, easy accessibility.
Further, described reset sleeve 1 is made up of saturating X-ray material.Reset sleeve 1 is made up of saturating X-ray material, is convenient to carry out X-ray shooting to fracture.
Further, described reset air bag 2 is made up of soft material, and reset air bag 2 outer surface covers one deck nylon cloth.The volumetric expansion that nylon cloth can limit reset air bag 2 is set.The present invention utilizes the air pressure in reset air bag 2 to produce enough pressure, and reset air bag 2 self produces displacement by flat to full expansion, and is limited the expansion of reset air bag 2 by nylon cloth, ensures enough pressure.Soft material possesses the material of certain elasticity and toughness, as adopted rubber, latex etc.
Further, described pressure regulator valve group 6 comprises multiple pressure regulator valve, and the air inlet 201 of air bag is connected with pressure regulator valve group 6 one end, and the other end of pressure regulator valve group 6 is connected with compressor 5.Pressure regulator valve can adopt ecp pressure regulator valve.The present embodiment can arrange several ecp pressure regulator valves worked alone.Pressure regulator valve group 6 one end connects air compressor 5, and the other end connects the air inlet 102 of reset air bag 2, is controlled the pressure of each pressure regulator valve, produce controlled thrust and controlled displacement, complete the reduction of the fracture according to the air pressure-force characteristic of air bag by control system.
The repositioning method of the above-mentioned resetting means for fracture of shaft of femur, comprise following process: resetting means is sleeved on fracture place, and select the reset air bag 2 at fracture place to be connected with pressure regulator valve group 6, air compressor 5 provides source of the gas, actual for the human body reset force be subject to is fed back to control system by film resistor strain pressure transducer 202 in real time that then paste near human body one side in reset air bag 2, control system is according to the reset force information received, the air pressure of measuring and calculating reset air bag 2, inflation and the venting of reset air bag 2 is controlled again by controlling pressure regulator valve group 6, to adjust the air pressure in reset air bag 2, realize applying reset force to fracture, complete the reset of knochenbruch.Control system is according to the reset force information received, and when calculating the air pressure of reset air bag 2, the reset force that reset air bag 2 applies, the air pressure of reset air bag 2 and the displacement of reset air bag 2 meet formula (1):
F=f (x) * p+b formula (1)
Wherein, F represents the reset force that reset air bag (2) applies, unit: Niu Dun; F (x) represents the function relevant to displacement x; P represents the air pressure of reset air bag (2), unit: Pascal; X represents the displacement of reset air bag (2); B represents the correction value of F, unit: newton.
Fig. 7 represents under different displacement, reset air bag 2 export reset force and reset air bag 2 in air pressure between graph of relation.In Fig. 7, abscissa represents: the air pressure in air bag, unit: millimetres of mercury, and vertical coordinate represents: the power output of air bag, unit: kilogram.Series 1 represents when the displacement of reset air bag is 10mm, the relation between reset force size and reset air bag internal gas pressure; Series 2 represents when the displacement of reset air bag is 10mm, the relation between reset force size and reset air bag internal gas pressure; Series 3 represents when the displacement of reset air bag is 30mm, the relation between reset force size and reset air bag internal gas pressure; Series 4 represents when the displacement of reset air bag is 40mm, the relation between reset force size and reset air bag internal gas pressure; Series 5 represents when the displacement of reset air bag is 50mm, the relation between reset force size and reset air bag internal gas pressure.
From Fig. 7, curve is known: the relation between reset force size, reset air bag internal gas pressure, reset displacement of air bag meets formula (1).
More than show and describe ultimate principle of the present invention, principal character and advantage.Those skilled in the art should understand; the present invention is not by the restriction of above-mentioned specific embodiment; description in above-mentioned specific embodiment and description is just in order to further illustrate principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The scope of protection of present invention is defined by claims and equivalent thereof.
Claims (10)
1. for a resetting means for fracture of shaft of femur, it is characterized in that, the reset air bag group that this resetting means comprises reset sleeve (1), is made up of multiple reset air bag (2), and compressor (5); Reset air bag (2) is arranged in the inner chamber of reset sleeve (1), and the side of reset air bag (2) is fixedly connected on the inwall of reset sleeve (1), each reset air bag (2) is provided with an air inlet (201), this air inlet (201), through reset sleeve (1), is positioned at the outside of reset sleeve (1); Air inlet (201) is connected with compressor (5) by pressure regulator valve group (6); Each reset air bag (2), near the one side of human body, is stained with film resistor strain pressure transducer (202).
2., according to the resetting means for fracture of shaft of femur according to claim 1, it is characterized in that, described reset air bag (2) evenly and be parallel to each other be laid in reset sleeve (1) inner chamber in.
3. according to the resetting means for fracture of shaft of femur according to claim 1, it is characterized in that, described reset air bag (2) is fixedly connected on the inwall of reset sleeve (1) by the first magic tape (4).
4. according to the resetting means for fracture of shaft of femur according to claim 1, it is characterized in that, described compressor (5) is medical air compressor.
5. according to the resetting means for fracture of shaft of femur according to claim 1, it is characterized in that, described reset sleeve (1) is made up of saturating X-ray material.
6. according to the resetting means for fracture of shaft of femur according to claim 1, it is characterized in that, described reset sleeve (1) comprises sleeve upper slice (101) and sleeve bottom sheet (102), the side that sleeve upper slice (101) is relative with sleeve bottom sheet (102) is connected through the hinge, and relative opposite side is connected by the second magic tape (3).
7. according to the resetting means for fracture of shaft of femur according to claim 1, it is characterized in that, described reset air bag (2) is made up of soft material, and reset air bag (2) outer surface covers one deck nylon cloth.
8. according to the resetting means for fracture of shaft of femur according to claim 1, it is characterized in that, described pressure regulator valve group (6) comprises multiple pressure regulator valve, the air inlet (201) of reset air bag is connected with pressure regulator valve one end, and the other end of pressure regulator valve (6) is connected with compressor (5).
9. the repositioning method of the resetting means for fracture of shaft of femur according to claim 1, it is characterized in that, this repositioning method comprises following process: resetting means is sleeved on fracture place, and select the reset air bag (2) at fracture place to be connected with pressure regulator valve group (6), air compressor (5) provides source of the gas, actual for the human body reset force be subject to is fed back to control system by film resistor strain pressure transducer (202) that then each reset air bag is pasted near human body one side in real time, control system is according to the reset force information received, the air pressure of measuring and calculating reset air bag (2), inflation and the venting of reset air bag (2) is controlled again by controlling pressure regulator valve group (6), to adjust the air pressure in reset air bag (2), realize applying reset force to fracture, complete the reset of knochenbruch.
10. according to the repositioning method of the resetting means for fracture of shaft of femur according to claim 9, it is characterized in that, the displacement of the reset force that described reset air bag (2) applies, the air pressure of reset air bag (2) and reset air bag (2) meets formula (1):
F=f (x) * p+b formula (1)
Wherein, F represents the reset force that reset air bag (2) applies, unit: Niu Dun; F (x) represents the function relevant to displacement x; P represents the air pressure of reset air bag (2), unit: Pascal; X represents the displacement of reset air bag (2); B represents the correction value of F, unit: newton.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510213291.7A CN104783874B (en) | 2015-04-29 | 2015-04-29 | A kind of resetting means and repositioning method for fracture of femoral shaft |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510213291.7A CN104783874B (en) | 2015-04-29 | 2015-04-29 | A kind of resetting means and repositioning method for fracture of femoral shaft |
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| CN104783874A true CN104783874A (en) | 2015-07-22 |
| CN104783874B CN104783874B (en) | 2017-06-16 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108143608A (en) * | 2016-06-08 | 2018-06-12 | 武汉佰起科技有限公司 | One kind is smoked to wash instrument and its application method |
| CN108591775A (en) * | 2018-03-30 | 2018-09-28 | 李泳鑫 | It is a kind of to use the structure being easily installed based on LED walls |
| CN110151376A (en) * | 2018-04-03 | 2019-08-23 | 李建林 | A kind of fixed device of severe multiple injury patient's amputation |
| CN110946640A (en) * | 2019-12-30 | 2020-04-03 | 朱怀宇 | Humerus stretching and compressing device |
| CN111134848A (en) * | 2019-07-04 | 2020-05-12 | 上海交通大学医学院附属第九人民医院 | Limb distal fracture reduction robot and using and reduction method thereof |
| CN112247957A (en) * | 2020-08-28 | 2021-01-22 | 浙江大学 | Multi-dimensional force sensor and novel self-adaptive flexible exoskeleton man-machine interface thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108143608A (en) * | 2016-06-08 | 2018-06-12 | 武汉佰起科技有限公司 | One kind is smoked to wash instrument and its application method |
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| CN108591775A (en) * | 2018-03-30 | 2018-09-28 | 李泳鑫 | It is a kind of to use the structure being easily installed based on LED walls |
| CN108591775B (en) * | 2018-03-30 | 2019-12-10 | 李泳鑫 | structure convenient to install and based on LED background wall |
| CN110151376A (en) * | 2018-04-03 | 2019-08-23 | 李建林 | A kind of fixed device of severe multiple injury patient's amputation |
| CN111134848A (en) * | 2019-07-04 | 2020-05-12 | 上海交通大学医学院附属第九人民医院 | Limb distal fracture reduction robot and using and reduction method thereof |
| CN110946640A (en) * | 2019-12-30 | 2020-04-03 | 朱怀宇 | Humerus stretching and compressing device |
| CN112247957A (en) * | 2020-08-28 | 2021-01-22 | 浙江大学 | Multi-dimensional force sensor and novel self-adaptive flexible exoskeleton man-machine interface thereof |
| CN112247957B (en) * | 2020-08-28 | 2022-01-25 | 浙江大学 | Multi-dimensional force sensor and self-adaptive flexible exoskeleton man-machine interface thereof |
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