WO2020036480A1 - External fixation tool - Google Patents
External fixation tool Download PDFInfo
- Publication number
- WO2020036480A1 WO2020036480A1 PCT/MY2019/000035 MY2019000035W WO2020036480A1 WO 2020036480 A1 WO2020036480 A1 WO 2020036480A1 MY 2019000035 W MY2019000035 W MY 2019000035W WO 2020036480 A1 WO2020036480 A1 WO 2020036480A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tool
- foot plate
- arm
- human patient
- plate stabilizer
- Prior art date
Links
- 210000002683 foot Anatomy 0.000 claims abstract description 32
- 239000003381 stabilizer Substances 0.000 claims abstract description 28
- 210000003141 lower extremity Anatomy 0.000 claims abstract description 18
- 238000011084 recovery Methods 0.000 claims abstract description 12
- 210000002303 tibia Anatomy 0.000 claims abstract description 8
- 210000003423 ankle Anatomy 0.000 claims abstract description 5
- 210000000459 calcaneus Anatomy 0.000 claims abstract description 5
- 210000001872 metatarsal bone Anatomy 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 210000003371 toe Anatomy 0.000 claims description 2
- 210000000988 bone and bone Anatomy 0.000 abstract description 5
- 206010023230 Joint stiffness Diseases 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 206010061225 Limb injury Diseases 0.000 description 2
- 208000002565 Open Fractures Diseases 0.000 description 2
- 206010052428 Wound Diseases 0.000 description 2
- 210000004233 talus Anatomy 0.000 description 2
- 208000003044 Closed Fractures Diseases 0.000 description 1
- 208000024779 Comminuted Fractures Diseases 0.000 description 1
- 206010067268 Post procedural infection Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 210000000458 cuboid bone Anatomy 0.000 description 1
- 210000000460 cuneiform bone Anatomy 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 210000002082 fibula Anatomy 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 210000000474 heel Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000000450 navicular bone Anatomy 0.000 description 1
- 208000037974 severe injury Diseases 0.000 description 1
- 230000009528 severe injury Effects 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
- 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 or setting implements
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6425—Devices extending alongside the bones to be positioned specially adapted to be fitted across a bone joint
Definitions
- the present invention relates to an external fixation tool designed for the usage in the treatment of lower limb injuries such as open wound or fractures.
- the human foot is a biomechanically complex structure containing 26 bones which consists of the talus, the calcaneus which forms the heel, the medial, intermediate, and lateral bones which forms the middle of the foot (cuneiform, cuboid, and navicular bones), the metatarsals, and the phalanges.
- the ankle consists of the tibia, the fibula, and the talus.
- the external fixation tool in the present invention permits a slight movement, dorsiflexion (flex upwards) or plantarflexion (flex downwards), to the joint during the recovery process. This prevents joint stiffness and allows for the flexibility of the joint to be preserved.
- the external fixation tool in the present invention is suitable to be used in all types of lower limb injuries from moderate to severe injuries such as open or closed fractures, comminuted fractures, or diabetic related wounds.
- the present invention provides a tool to control movement of joints at a lower limb of a human patient
- the tool includes an external fixation device couplable to tibia bone of the human patient
- the tool includes at least one substantially U-shaped device that is removably connected to the tibia and to an arm
- the arm allows a connecting means to be invasively connected to an ankle of the human patient and a foot plate stabilizer that is removably attached to the arm whereby the arm is provided with locking mechanism to enable the device
- the fixator that is removably connected either to the calcaneum or cuboid and to the forth and second metatarsal, and the foot plate stabilizer to be adjusted by the human patient or his doctor to enable the lower limb to have a controlled movement during recovery.
- Figure 1 is a perspective view of the tool to control the movement of the joints at a lower limb according to the preferred embodiments of the present invention.
- Figure 2 is view of the assembly of the tool at the lower limb.
- Figure 3 is the frontal view of the assembly of the tool at the lower limb.
- Figure 4 is the bottom of the tool as illustrated in Figure 1.
- Figure 5 is a perspective view of a hinge.
- Figure 6 is a perspective view of a fixator.
- Figure 7 is a perspective view of the arm and protrusions.
- Figure 8 is a perspective view of a control means.
- Figure 9 is a perspective view of U-shaped device.
- Figure 10 is a perspective view of foot plate stabilizer.
- Figure 11 is a perspective view of yet another control means.
- Figure 12 is a perspective view of (27).
- Figure 13 is a perspective view of the tool which is similar to Figure 1.
- Figure 14 is a left perspective view of the tool where it is attached to a human patient’s lower limb.
- Figure 15 is a front perspective view when it is attached to a human patient’s lower limb.
- Figure 16 is a side view of the tool when it is not fixed human patient’s lower limb.
- Figure 17 is front view of the tool when it is attached to a human patient’s lower limb.
- the present invention enables the healing of soft and bony tissues whilst at the same time providing stability to the affected bones at the joints. More specifically, present invention allows a small degree of active mobilization that can reduce the incidence of joint stiffness secondary to prolonged immobilization.
- the present tool (10) functions to control movement of joints at a lower limb of a patient.
- the tool includes an external fixation device couplable to tibia bone of the patient wherein the device includes at least one substantially U-shaped device (12) that is removably connected to the tibia and to an arm (14), the arm allows a connecting means to be invasively connected to an ankle of the patient and a foot plate stabilizer (16) that is removably attached to the arm (14) whereby the arm is provided with locking mechanism to enable the tool (10), a fixator (22) that is removably connected either to the calcaneum or cuboid and to the forth and second metatarsal, and the foot plate stabilizer (16) to be adjusted by the patient or his doctor to enable the lower limb to have a controlled movement during recovery.
- the U-shaped device (12) can be position at different locations as the arm is provided with multiple protrusions (18] located along the front axis of the arm (14].
- a connection (27] is attached
- the locking mechanism includes a hinge (20] that is movable between positions along the fixator (22] that is placed horizontally of the hinge (20] whereby movement of the hinge (20] along the fixator (22] controls degrees of movement of the foot plate stabilizer.
- the patient will be able to adjust the degree of movement of the foot plate stabilizer depending on the stage of his recovery.
- the locking mechanism allows the foot plate stabilizer (16] to move dorsiflexion and plantarflexion.
- the foot plate stabilizer (16] has a control means (24] that moves horizontally at rear end of the foot plate stabilizer to enable the human patient to adjust the foot plate stabilizer to fit the size of the patient’s foot.
- the foot plate stabilizer (16] has yet another control means (26] that moves vertically at front end of the foot plate stabilizer (16] to enable the patient to adjust the foot plate stabilizer (16] to position the patient's toes at a more comfortable position.
- the tool is made of medical grade aluminium, stainless steel, titanium, and carbon. These materials reduce the weight beared by the patient as well as reduces the risk of postoperative infections.
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to a tool (10) that controls the movement of joints in the lower limb of a human patient. In the present invention, the tool comprises of an external fixation device couplable to the tibial bone of the human patient wherein the device includes at least one substantially U-shaped device (12) that is removably connected to the tibia and to an arm (14). The arm (14) allows a connecting means to be invasively connected to an ankle of the human patient and a foot plate stabilizer (16). A fixator (22) is removably connected either to the calcaneum or cuboid and to the forth and second metatarsal. The foot plate stabilizer (16) is removably attached to the arm (14) whereby the arm is provided with locking mechanism to enable the device (10) and the foot plate stabilizer (16) to be adjusted by the human patient or his doctor to enable the lower limb to have a controlled movement during recovery.
Description
EXTERNAL FIXATION TOOL
FIELD OF INVENTION
The present invention relates to an external fixation tool designed for the usage in the treatment of lower limb injuries such as open wound or fractures.
BACKGROUND OF INVENTION
The human foot is a biomechanically complex structure containing 26 bones which consists of the talus, the calcaneus which forms the heel, the medial, intermediate, and lateral bones which forms the middle of the foot (cuneiform, cuboid, and navicular bones), the metatarsals, and the phalanges. The ankle consists of the tibia, the fibula, and the talus.
One of the major drawback of the many external fixation devices, such the external ring fixation, is that often for a prolonged period of time, the patient is immobilized due to the multiple components that makes up the frame of the fixation such as the supporting rods, pins, and clamps.
Another drawback to the existing external fixation systems is that the patients have restricted movements and inadequately provides the need for the patient to use the affected joint as close to normal as possible. Although immobilization and restricted movements is necessary to permit bone regrowth but in prolonged period of time, it will cause joint stiffness or fusion and may cause post-recovery complications.
In addition, many of these external fixation systems requires the doctor or a medical professional to remove the existing device that was inserted during surgery and to be replaced by an external system as the patient enters the recovery stage. Furthermore, the patients who are still in the recovery process are required to be physically present to allow the doctor or the medical professional to make adjustments to the external fixation system to suit the recovery stage of the patient. This would require multiple consultations with the doctor or the medical professional and may prolong the recovery period of the patient. Even though there are various external fixation system that is made available, there is still a need for an external fixation tool that is easily adjustable by the patient themselves according to his medical requirements and to enable slight movement of the lower limb throughout the recovery process. The external fixation tool in the present invention permits a slight movement, dorsiflexion (flex upwards) or plantarflexion (flex downwards), to the joint during the recovery process. This prevents joint stiffness and allows for the flexibility of the joint to be preserved.
The external fixation tool in the present invention is suitable to be used in all types of lower limb injuries from moderate to severe injuries such as open or closed fractures, comminuted fractures, or diabetic related wounds.
SUMMARY OF INVENTION
Accordingly, the present invention provides a tool to control movement of joints at a lower limb of a human patient, the tool includes an external fixation device couplable to tibia bone of the human patient wherein the tool includes at least one substantially U-shaped device that is removably connected to the tibia and to an arm, the arm allows a connecting means to be invasively connected to an ankle of the human patient and a foot plate stabilizer that is removably attached to the arm whereby the arm is provided with locking mechanism to enable the device, the fixator that is removably connected either to the calcaneum or cuboid and to the forth and second metatarsal, and the foot plate stabilizer to be adjusted by the human patient or his doctor to enable the lower limb to have a controlled movement during recovery.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a perspective view of the tool to control the movement of the joints at a lower limb according to the preferred embodiments of the present invention.
Figure 2 is view of the assembly of the tool at the lower limb.
Figure 3 is the frontal view of the assembly of the tool at the lower limb.
Figure 4 is the bottom of the tool as illustrated in Figure 1.
Figure 5 is a perspective view of a hinge.
Figure 6 is a perspective view of a fixator.
Figure 7 is a perspective view of the arm and protrusions.
Figure 8 is a perspective view of a control means.
Figure 9 is a perspective view of U-shaped device.
Figure 10 is a perspective view of foot plate stabilizer.
Figure 11 is a perspective view of yet another control means.
Figure 12 is a perspective view of (27).
Figure 13 is a perspective view of the tool which is similar to Figure 1.
Figure 14 is a left perspective view of the tool where it is attached to a human patient’s lower limb.
Figure 15 is a front perspective view when it is attached to a human patient’s lower limb.
Figure 16 is a side view of the tool when it is not fixed human patient’s lower limb. Figure 17 is front view of the tool when it is attached to a human patient’s lower limb.
DETAILED DESCRIPTION OF THE PREFERED EMBODIMENTS
The present invention enables the healing of soft and bony tissues whilst at the same time providing stability to the affected bones at the joints. More specifically, present invention allows a small degree of active mobilization that can reduce the incidence of joint stiffness secondary to prolonged immobilization.
The details of the present invention may now be described in relation to the accompanying Figures 1 to 17.
The present tool (10) functions to control movement of joints at a lower limb of a patient. The tool includes an external fixation device couplable to tibia bone of the patient wherein the device includes at least one substantially U-shaped device (12) that is removably connected to the tibia and to an arm (14), the arm allows a connecting means to be invasively connected to an ankle of the patient and a foot plate stabilizer (16) that is removably attached to the arm (14) whereby the arm is provided with locking mechanism to enable the tool (10), a fixator (22) that is removably connected either to the calcaneum or cuboid and to the forth and second metatarsal, and the foot plate stabilizer (16) to be adjusted by the patient or his doctor to enable the lower limb to have a controlled movement during recovery. The U-shaped device (12) can be position
at different locations as the arm is provided with multiple protrusions (18] located along the front axis of the arm (14]. A connection (27] is attached to the bottom foot plate stabiliser (16].
The locking mechanism includes a hinge (20] that is movable between positions along the fixator (22] that is placed horizontally of the hinge (20] whereby movement of the hinge (20] along the fixator (22] controls degrees of movement of the foot plate stabilizer. The patient will be able to adjust the degree of movement of the foot plate stabilizer depending on the stage of his recovery. The locking mechanism allows the foot plate stabilizer (16] to move dorsiflexion and plantarflexion.
The foot plate stabilizer (16] has a control means (24] that moves horizontally at rear end of the foot plate stabilizer to enable the human patient to adjust the foot plate stabilizer to fit the size of the patient’s foot. The foot plate stabilizer (16] has yet another control means (26] that moves vertically at front end of the foot plate stabilizer (16] to enable the patient to adjust the foot plate stabilizer (16] to position the patient's toes at a more comfortable position.
The tool is made of medical grade aluminium, stainless steel, titanium, and carbon. These materials reduce the weight beared by the patient as well as reduces the risk of postoperative infections.
Claims
1. A tool (10) to control movement of joints at a lower limb of a human patient, the tool includes an external fixation device couplable to tibia bone of the human patient wherein the device includes at least one substantially U-shaped device (12) that is removably connected to the tibia and to an arm (14), the arm allows a connecting means to be invasively connected to an ankle of the human patient and a foot plate stabilizer (16) that is removably attached to the arm (14) whereby the arm is provided with locking mechanism to enable the tool (10), a fixator (22) that is removably connected either to the calcaneum or cuboid and to the forth and second metatarsal, and the foot plate stabilizer (16) to be adjusted by the human patient or his doctor to enable the lower limb to have a controlled movement during recovery.
2. The tool of Claim 1, wherein the U-shaped device (12) can be position at different locations as the arm is provided with multiple protrusions (18) located along the front axis of the arm (14).
3. The tool of Claim 1, wherein the locking mechanism includes a hinge (20) that is movable between positions along the fixator (22) that is placed horizontally of the hinge (20) whereby movement of hinge (20) along the fixator (22) controls degrees of movement of the foot plate stabilizer.
4. The tool of any one Claims 1 to 3, wherein the foot plate stabilizer (16) movable dorsiflexion and plantarflexion. 5. The tool of any one Claims 1 to 4, wherein the foot plate stabilizer (16) has a control means
(24) that moves horizontally at rear end of the foot plate stabilizer (16) to enable the human patient to adjust the foot plate stabilizer (16) to fit the human patient’s foot.
6. The tool of any one Claims 1 to 4, wherein the foot plate stabilizer (16) has yet another control means (26) that moves vertically at front end of the foot plate stabilizer (16) to enable the human patient to adjust the foot plate stabilizer (16) to position his toes at a comfortable position.
7. The tool of Claim 1, wherein the tool is made of medical grade aluminium, stainless steel, titanium, and carbon.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MYPI2018702862A MY190275A (en) | 2018-08-14 | 2018-08-14 | External fixation tool |
| MYPI2018702862 | 2018-08-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020036480A1 true WO2020036480A1 (en) | 2020-02-20 |
Family
ID=69525732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/MY2019/000035 WO2020036480A1 (en) | 2018-08-14 | 2019-08-14 | External fixation tool |
Country Status (2)
| Country | Link |
|---|---|
| MY (1) | MY190275A (en) |
| WO (1) | WO2020036480A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4538595A (en) * | 1984-02-21 | 1985-09-03 | Hajianpour Muhamad A | Passive exercising device |
| US5014690A (en) * | 1990-02-22 | 1991-05-14 | Hepburn George R | Adjustable splint |
| US5078128A (en) * | 1990-06-27 | 1992-01-07 | Royce Medical Company | Removable leg walker |
| US20120143112A1 (en) * | 2009-09-25 | 2012-06-07 | Hashimoto Artificial Limb Manufacture Corporation | Lower-limb joint orthosis and control method therefor |
| US20160250060A1 (en) * | 2011-02-14 | 2016-09-01 | Bonutti Research, Inc. | Ankle foot orthosis |
-
2018
- 2018-08-14 MY MYPI2018702862A patent/MY190275A/en unknown
-
2019
- 2019-08-14 WO PCT/MY2019/000035 patent/WO2020036480A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4538595A (en) * | 1984-02-21 | 1985-09-03 | Hajianpour Muhamad A | Passive exercising device |
| US5014690A (en) * | 1990-02-22 | 1991-05-14 | Hepburn George R | Adjustable splint |
| US5078128A (en) * | 1990-06-27 | 1992-01-07 | Royce Medical Company | Removable leg walker |
| US20120143112A1 (en) * | 2009-09-25 | 2012-06-07 | Hashimoto Artificial Limb Manufacture Corporation | Lower-limb joint orthosis and control method therefor |
| US20160250060A1 (en) * | 2011-02-14 | 2016-09-01 | Bonutti Research, Inc. | Ankle foot orthosis |
Also Published As
| Publication number | Publication date |
|---|---|
| MY190275A (en) | 2022-04-12 |
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