CA2142808A1 - Apparatus for applying traction to the legs and the spine of a person - Google Patents
Apparatus for applying traction to the legs and the spine of a personInfo
- Publication number
- CA2142808A1 CA2142808A1 CA002142808A CA2142808A CA2142808A1 CA 2142808 A1 CA2142808 A1 CA 2142808A1 CA 002142808 A CA002142808 A CA 002142808A CA 2142808 A CA2142808 A CA 2142808A CA 2142808 A1 CA2142808 A1 CA 2142808A1
- Authority
- CA
- Canada
- Prior art keywords
- cross member
- traction
- person
- legs
- feet
- 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.)
- Withdrawn
Links
- 210000002414 leg Anatomy 0.000 claims description 32
- 210000002683 foot Anatomy 0.000 claims description 31
- 210000003423 ankle Anatomy 0.000 claims description 9
- 210000003127 knee Anatomy 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims 1
- 238000003825 pressing Methods 0.000 abstract description 2
- 210000000845 cartilage Anatomy 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 235000015097 nutrients Nutrition 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 210000001179 synovial fluid Anatomy 0.000 description 5
- 210000001612 chondrocyte Anatomy 0.000 description 4
- 210000003035 hyaline cartilage Anatomy 0.000 description 3
- 208000006820 Arthralgia Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 102000016611 Proteoglycans Human genes 0.000 description 1
- 108010067787 Proteoglycans Proteins 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 208000024765 knee pain Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000003349 osteoarthritic effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/04—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints
- A61F5/042—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints for extension or stretching
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/04—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/04—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints
- A61F5/042—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints for extension or stretching
- A61F5/048—Traction splints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/02—Stretching or bending or torsioning apparatus for exercising
- A61H1/0218—Drawing-out devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2203/00—Additional characteristics concerning the patient
- A61H2203/04—Position of the patient
- A61H2203/0481—Hanging
- A61H2203/0493—Hanging by hanging the patient upside down or inclined downwardly
Landscapes
- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nursing (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Physical Education & Sports Medicine (AREA)
- Pain & Pain Management (AREA)
- Epidemiology (AREA)
- Rehabilitation Tools (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
An apparatus for applying traction to the legs and the spine of a person, comprising means to hold one or both feet firmly attached to the apparatus while traction force is being transmitted from the apparatus to one or both feet, and means for the person to provide such traction force by arm force or by the force of one leg applying pressure against the apparatus.
Description
~ 2 ~ 0~
This invention relates to an apparatus for applying traction to the legs and the spine of a person.
All joints in the human body have bones covered with hyaline cartilage and are surrounded by synovial fluid serving as a lubricant and as a source of oxygen and nutrients. Hyaline cartilage is being maintained and renewed by synthesis of collagen matrix and proteoglycans by the chondrocyte cells embedded in the cartilage. In order to function, the chondrocyte cells require oxygen and nutrients which they receive only from the synovial fluid since hyaline cartilage does not have any blood vessels.
Due in part to longterm weight bearing, major joints in the lower part of the 10 body are subjected to compression of joint cartilage and some deformation of the joint surfaces which tends to inhibit the free access of synovial fluid to some parts of the cartilage. This limits the supply of oxygen and nutrients to some of the chondrocyte cells, and contributes to osteoarthritic degeneration of the cartilage with resulting pain and disability.
Subjecting a joint to traction will temporarily open the joint space very slightly, and thereby draw synovial fluid into areas where the cartilage has been deprived of an adequate supply of oxygen and nutrients. Intermittent traction and relaxation will in effect pump synovial fluid across the cartilage to provide nutrients and oxygen and also to carry away waste products. This will enable chondrocyte cells to repair damaged areas of 20 cartilage, and maintain the integrity of the joint, also reducing or eliminating associated knee pain.
~ ~4~
The present invention provides a means for providing intermittent traction primarily to the knee joints, and also to other joints in the legs and the spine, for the purpose of improving the health of the joints and reducing joint pain.
Traction of the legs has been used for the purpose of aiding the healing of bone fractures and other injuries, in some cases using devices employing traction force provided by weights pulling on ropes attached to the person's foot (or feet), while the body has to be restrained by some means in order to be kept immobile in a bed. By comparison, the present invention does not require any restraint to prevent movement of either the person or the apparatus.
None of the known devices appear to be as easily portable or as convenient for frequent short-term use as the present invention.
It is an object of the present invention to provide an apparatus which is convenient and comfortable to use for providing simultaneous traction of one or both legs and the spine of a person or for providing traction of one leg at a time and not the spine.
According to one embodiment of this invention an apparatus to provide traction to the legs and spine comprises a central frame to which is attached a front cross member extending to both sides of the central frame, said front cross member being located adjacent to the lower end of the central frame, and being adapted to be held firmly to one or both of the person's feet, and means to transmit traction force to the foot or feet 20 through the front cross member by means of arm force applied to a handgrip adjustably `- 2142808 connected to the upper end of the central frame by a handle.
According to another embodiment of this invention, the front cross member is held firmly to the front of the ankles and the upper surface of the feet by a back cross member which is held firmly against the back of the person's legs, said back cross member being attached to the central frame and extending to both sides of the central frame. The position of the back cross member relative to the front cross member is adjustable to suit the dimensions of the person's feet and legs, and is adapted so that with the knees slightly bent or the handgrip moved close to the body, the feet can easily be engaged to or disengaged from the apparatus, while straightening of the knees or moving 10 the handgrip slightly away from the body will cause the apparatus to become firmly held or locked to the feet.
According to another embodiment of this invention, the front cross member is arranged so as to let one leg be subjected to traction while the other leg is providing the traction force by pressure of the foot against the upper surface of the front cross member.
Other objects and advantages of the invention can be seen from the following description of the apparatus and it's use in which:
Figure 1 is a perspective view of an apparatus made in accordance with this invention showing the overall arrangement of the components.
Figure 2 is a side elevation of the apparatus showing a person using the 21~2808 apparatus to exert traction on the left leg by providing traction force with the right leg.
Figure 3 is a partial section through the apparatus parallel to the axis of the apparatus showing one leg being engaged to or disengaged from the apparatus.
Figure 4 is a partial section through the apparatus parallel to the axis of the apparatus showing one leg being firmly held in place between the front and back cross members to permit application of traction force.
Figure 1 illustrates the various components of the apparatus including the central frame 10 which is connected to handle 11 with the attached handgrip 12. Front cross member 13 is attached to central frame 10 and has end plates 14. The upper 10 surface of front cross member 13 is shaped and oriented to permit application of pressure by either the right or the left foot, and the lower surface is contoured to approximate the contours of the front of the ankles and the upper surfaces of the feet so as to permit transmission of traction force to either one or both feet.
Back cross member 15 is attached to central frame 10 by means of bolts 18.
Movable spacers 16 and 17, some of which have an even thickness and some which are wedge-shaped, permit adjustment of the relative orientation and distance between the back cross member and the front cross member to suit the actual dimensions of the legs and feet of the person using the apparatus. The relative position of handle 11 to central frame 10 can be adjusted to suit the person using the apparatus, and is secured by bolts 19.
21~2~08 Figure 2 illustrates the use of the apparatus. In the illustration, the left leg is subjected to traction. The left foot is held firmly between the front and back cross members so that traction force can be transmitted to the foot by the front cross member. Traction force can be applied by the right foot pressing on the upper surface of the front cross member, or can be provided by arm force transmitted through the handgrip, or a combination of the two.
Other possible ways to use the apparatus, not shown in the illustration, include traction of the right leg in a similar way to what is described above for the left leg, or traction of both legs and at the same time the spine, using arm force to provide traction 10 force. The person using the apparatus may be in a substantially horizontal position, or may be in a reclining position.
Figure 3 illustrates a partial section through the apparatus, parallel to the axis of the apparatus, showing in section core 20 of front cross member 13, and the resilient padding 21 surrounding core 20. Figure 3 also illustrates how the foot and the ankle can be easily engaged into or disengaged from the apparatus when the knee is slightly bent and the handgrip is held close to the body.
Figure 4 illustrates the same section as figure 3, and shows how the ankle and foot are firmly held or locked in place by the front and back cross members when the leg is straightened or the handgrip is moved forward and away from the body. The arrows 20 indicate the forces exerted against the body at the three contact joints, and illustrate the lever effect creating a substantial locking force against the front of the ankle when a relatively modest forward pressure is applied against the handgrip.
It is not intended to limit the invention except with reference to the appended claims.
This invention relates to an apparatus for applying traction to the legs and the spine of a person.
All joints in the human body have bones covered with hyaline cartilage and are surrounded by synovial fluid serving as a lubricant and as a source of oxygen and nutrients. Hyaline cartilage is being maintained and renewed by synthesis of collagen matrix and proteoglycans by the chondrocyte cells embedded in the cartilage. In order to function, the chondrocyte cells require oxygen and nutrients which they receive only from the synovial fluid since hyaline cartilage does not have any blood vessels.
Due in part to longterm weight bearing, major joints in the lower part of the 10 body are subjected to compression of joint cartilage and some deformation of the joint surfaces which tends to inhibit the free access of synovial fluid to some parts of the cartilage. This limits the supply of oxygen and nutrients to some of the chondrocyte cells, and contributes to osteoarthritic degeneration of the cartilage with resulting pain and disability.
Subjecting a joint to traction will temporarily open the joint space very slightly, and thereby draw synovial fluid into areas where the cartilage has been deprived of an adequate supply of oxygen and nutrients. Intermittent traction and relaxation will in effect pump synovial fluid across the cartilage to provide nutrients and oxygen and also to carry away waste products. This will enable chondrocyte cells to repair damaged areas of 20 cartilage, and maintain the integrity of the joint, also reducing or eliminating associated knee pain.
~ ~4~
The present invention provides a means for providing intermittent traction primarily to the knee joints, and also to other joints in the legs and the spine, for the purpose of improving the health of the joints and reducing joint pain.
Traction of the legs has been used for the purpose of aiding the healing of bone fractures and other injuries, in some cases using devices employing traction force provided by weights pulling on ropes attached to the person's foot (or feet), while the body has to be restrained by some means in order to be kept immobile in a bed. By comparison, the present invention does not require any restraint to prevent movement of either the person or the apparatus.
None of the known devices appear to be as easily portable or as convenient for frequent short-term use as the present invention.
It is an object of the present invention to provide an apparatus which is convenient and comfortable to use for providing simultaneous traction of one or both legs and the spine of a person or for providing traction of one leg at a time and not the spine.
According to one embodiment of this invention an apparatus to provide traction to the legs and spine comprises a central frame to which is attached a front cross member extending to both sides of the central frame, said front cross member being located adjacent to the lower end of the central frame, and being adapted to be held firmly to one or both of the person's feet, and means to transmit traction force to the foot or feet 20 through the front cross member by means of arm force applied to a handgrip adjustably `- 2142808 connected to the upper end of the central frame by a handle.
According to another embodiment of this invention, the front cross member is held firmly to the front of the ankles and the upper surface of the feet by a back cross member which is held firmly against the back of the person's legs, said back cross member being attached to the central frame and extending to both sides of the central frame. The position of the back cross member relative to the front cross member is adjustable to suit the dimensions of the person's feet and legs, and is adapted so that with the knees slightly bent or the handgrip moved close to the body, the feet can easily be engaged to or disengaged from the apparatus, while straightening of the knees or moving 10 the handgrip slightly away from the body will cause the apparatus to become firmly held or locked to the feet.
According to another embodiment of this invention, the front cross member is arranged so as to let one leg be subjected to traction while the other leg is providing the traction force by pressure of the foot against the upper surface of the front cross member.
Other objects and advantages of the invention can be seen from the following description of the apparatus and it's use in which:
Figure 1 is a perspective view of an apparatus made in accordance with this invention showing the overall arrangement of the components.
Figure 2 is a side elevation of the apparatus showing a person using the 21~2808 apparatus to exert traction on the left leg by providing traction force with the right leg.
Figure 3 is a partial section through the apparatus parallel to the axis of the apparatus showing one leg being engaged to or disengaged from the apparatus.
Figure 4 is a partial section through the apparatus parallel to the axis of the apparatus showing one leg being firmly held in place between the front and back cross members to permit application of traction force.
Figure 1 illustrates the various components of the apparatus including the central frame 10 which is connected to handle 11 with the attached handgrip 12. Front cross member 13 is attached to central frame 10 and has end plates 14. The upper 10 surface of front cross member 13 is shaped and oriented to permit application of pressure by either the right or the left foot, and the lower surface is contoured to approximate the contours of the front of the ankles and the upper surfaces of the feet so as to permit transmission of traction force to either one or both feet.
Back cross member 15 is attached to central frame 10 by means of bolts 18.
Movable spacers 16 and 17, some of which have an even thickness and some which are wedge-shaped, permit adjustment of the relative orientation and distance between the back cross member and the front cross member to suit the actual dimensions of the legs and feet of the person using the apparatus. The relative position of handle 11 to central frame 10 can be adjusted to suit the person using the apparatus, and is secured by bolts 19.
21~2~08 Figure 2 illustrates the use of the apparatus. In the illustration, the left leg is subjected to traction. The left foot is held firmly between the front and back cross members so that traction force can be transmitted to the foot by the front cross member. Traction force can be applied by the right foot pressing on the upper surface of the front cross member, or can be provided by arm force transmitted through the handgrip, or a combination of the two.
Other possible ways to use the apparatus, not shown in the illustration, include traction of the right leg in a similar way to what is described above for the left leg, or traction of both legs and at the same time the spine, using arm force to provide traction 10 force. The person using the apparatus may be in a substantially horizontal position, or may be in a reclining position.
Figure 3 illustrates a partial section through the apparatus, parallel to the axis of the apparatus, showing in section core 20 of front cross member 13, and the resilient padding 21 surrounding core 20. Figure 3 also illustrates how the foot and the ankle can be easily engaged into or disengaged from the apparatus when the knee is slightly bent and the handgrip is held close to the body.
Figure 4 illustrates the same section as figure 3, and shows how the ankle and foot are firmly held or locked in place by the front and back cross members when the leg is straightened or the handgrip is moved forward and away from the body. The arrows 20 indicate the forces exerted against the body at the three contact joints, and illustrate the lever effect creating a substantial locking force against the front of the ankle when a relatively modest forward pressure is applied against the handgrip.
It is not intended to limit the invention except with reference to the appended claims.
Claims (10)
1. An apparatus for applying traction to the legs and the spine of a person who is in a horizontal or reclining position, comprising a central frame with means to attach one of the person's feet to each side of it's lower end, and a connecting handle with a handgrip at it's upper end through which the person can apply pressure to exert traction on both of the legs and the spine.
2. An apparatus as claimed in claim 1 in which the means to attach the feet to the central frame is arranged so as to allow easy attachment or disattachment of one foot at a time, so that traction can be applied to one leg at a time, and the spine, while the other leg is at rest.
3. An apparatus as claimed in claim 2 in which means are provided to permit that the foot which is not attached to the apparatus can be used to press downward on the lower end of the central frame so as to provide a traction force to the leg which has the foot attached to the central frame, thereby providing traction to one leg only and not to the spine.
4. An apparatus as claimed in claim 3 in which the apparatus has a front cross member with its lower surface contoured so as to approximate the contours of the front of the ankles and the upper surfaces of the feet, said cross member serving to transmit downward pressure from the apparatus to the upper surfaces of the feet, so as to exert traction on one or both legs.
5. An apparatus as claimed in claim 4 in which the front cross member is provided with resilient padding for added comfort and improved effectiveness in transmitting the traction force from the apparatus to the feet.
6. An apparatus as claimed in claim 4 in which the upper side of the front cross member is arranged so as to provide a suitably sized and oriented surface against which pressure can comfortably be applied by the foot which is not attached to the apparatus, so as to exert traction on the leg which has it's foot attached to the apparatus.
7. An apparatus as claimed in claim 4, in which the apparatus is provided with a back cross member which when the apparatus is in use is substantially parallel to the back of the legs of the person, and fits against the back of the legs a short distance above the ankles, said back cross member limiting backward movement of the legs relative to the apparatus and ensuring that the front cross member is retained in a position of firm contact with the front of the ankles.
8. An apparatus as claimed in claim 7 in which the relative positions of the front cross member and the back cross member are such that when the person holds the handgrip and handle close to the body and bends the knees very slightly, the feet can easily be engaged or disengaged between the cross members, while straightening the knees, or moving the handgrip and handle further from the body, by lever action will make the front cross member press firmly against the front of the ankle, and thereby allow application and transmission of traction force.
9. An apparatus as claimed in claim 8 in which the distance and angle between the front cross member and the back cross member can be adjusted to suit the actual dimensions of the legs and feet of the person using the apparatus.
10. An apparatus as claimed in claim 8 in which the length of the device from the front cross member to the handgrip can be adjusted so as to suit the actual body dimensions of the person using the apparatus.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002142808A CA2142808A1 (en) | 1995-02-17 | 1995-02-17 | Apparatus for applying traction to the legs and the spine of a person |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002142808A CA2142808A1 (en) | 1995-02-17 | 1995-02-17 | Apparatus for applying traction to the legs and the spine of a person |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2142808A1 true CA2142808A1 (en) | 1996-08-18 |
Family
ID=4155266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002142808A Withdrawn CA2142808A1 (en) | 1995-02-17 | 1995-02-17 | Apparatus for applying traction to the legs and the spine of a person |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2142808A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020246934A1 (en) * | 2019-06-05 | 2020-12-10 | Cd Väst Ab | An arrangement for applying a spinal traction force |
-
1995
- 1995-02-17 CA CA002142808A patent/CA2142808A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020246934A1 (en) * | 2019-06-05 | 2020-12-10 | Cd Väst Ab | An arrangement for applying a spinal traction force |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AZWI | Withdrawn application |