EP0529038A1 - Elastic traction device for training finger movement. - Google Patents
Elastic traction device for training finger movement.Info
- Publication number
- EP0529038A1 EP0529038A1 EP92906442A EP92906442A EP0529038A1 EP 0529038 A1 EP0529038 A1 EP 0529038A1 EP 92906442 A EP92906442 A EP 92906442A EP 92906442 A EP92906442 A EP 92906442A EP 0529038 A1 EP0529038 A1 EP 0529038A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pulling device
- base
- roller
- support element
- deflection
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
- A63B23/12—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for upper limbs or related muscles, e.g. chest, upper back or shoulder muscles
- A63B23/16—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for upper limbs or related muscles, e.g. chest, upper back or shoulder muscles for hands or fingers
Definitions
- the invention relates to an elastic pulling device with a pull cord that can be attached to a fingertip for movement training of this finger.
- Such movement training is required after injuries or infections of the tendons, which require a dosed movement therapy without any strain on the tendon.
- Early surgery is particularly important after operations in which a tendon that has been torn or severed due to an accident or inflammatory disease has been put together again.
- the operation was performed on the extensor tendon of a finger, it is important to regain full functionality by largely preventing the adhesions and adhesions feared after the operation.
- the elastic fibers in the scar area are aligned by means of movement therapy.
- the movement of the finger under this load strengthens the antagonite (flexor muscle) and protects the neighboring joints against shrinkage of the joint capsule.
- the wrist is fixed with a plaster cast during this treatment period.
- the invention has for its object to provide a pulling device which is also compact and can be accommodated in a small space, but exerts a pulling force which is largely independent of the stroke and thus of the finger position or only dependent to a small extent.
- a deflection roller is particularly suitable, which is rotatably mounted in the end region of the base to be anchored in the plaster cast, with an axis approximately perpendicular to the palm in the case of the thumb and with a transverse axis for training one of the other fingers.
- the simplest energy store is still a so-called rubber cord, ie a solid rubber cord, but this must have a sufficiently large effective length. This is achieved by a single or multiple redirection between the fixed point and the last pulley in front of the fingertip.
- a U-shaped wire with a web and two long, substantially parallel legs that can be corrugated for better anchoring in the plaster can also be used as a base. They often also contain a U-shaped wire and the legs of which are connected to one another by cross bars. In this case, a deflection roller can be mounted on the web, on a rung or on the web and at least one rung.
- the last deflecting roller should have an axial direction approximately perpendicular to the base or the palm of the hand.
- it can be mounted on a laterally pivotable, latchable lever in order to change the rope tension.
- a simple rubber strand In addition to a simple rubber strand, other elastic strands can be used as energy stores.
- the braided or twisted cords which at least partially consist of elastic fibers or veins made of rubber or plastic.
- a tension spring (helical spring), which is preferably surrounded by a tubular protective cover, is also expedient.
- a non-stretchable pull cord can also be provided in connection with a rotating energy accumulator. The cord is wound on a spool and the spool is connected to an axially coiled coil spring or is driven by a torsion spring.
- the energy accumulator and / or the deflection device are attached to a support element and form an independent structural unit with this, which is easy to attach to the base.
- Such units can be easily produced in large quantities and a further advantage is that they can be placed on the protruding end of the base after the plaster cast has been completed, without being contaminated beforehand.
- Two units described in the exemplary embodiments are also characterized in that the support element has both a deflection roller for the thumb and one for one of the other fingers. These pulleys can be used optionally, depending on how the unit is placed on the base. In addition, multiple roles can be provided for multiple fingers.
- Another advantageous feature of the invention is that a clamping device for an elastic strand is arranged on the support element. This allows the length of the strand to be adjusted to the finger in question and the required tractive force can be changed easily and continuously.
- a fingernail-shaped adhesive element is attached to the end of the pull cord, which can be glued over a large area to the fingernail of the finger to be moved.
- Fig. 1 is a plan view of a pulling device that as
- FIG. 3 shows a schematic longitudinal section of a spring accumulator
- FIG. 5 shows the side view of the support element of the pulling device according to FIG. 4,
- FIG. 6 is a top view of a fourth traction device
- Fig. 7 is a side view of the pulling device according to Fig. 6 and
- Fig. 1 shows a common splint, as it is used as reinforcement of a plaster cast to immobilize, for example, a wrist. It consists of a U-shaped wire with a web la (also Fig. 4), two legs 1 forming the legs and with cross bars 2, which are also bent from wire and connected to the bars 1, z. B. are soldered.
- the web la serves as a bearing pin for a deflection roller 3, the axial movement of which is prevented by two spacer rollers 4.
- the penultimate cross bar 5 is reinforced and serves as a bearing for a further deflection roller 6.
- a rubber cord 7 is fastened at one end to the one spacer roller 4, via the deflection roller 6 and then back again over the deflection roller 3 and with the other end at one ⁇ aft plate 8 tied.
- the connection point is thickened by a bead 9, from which the thickness of the adhesive plate to the edges constantly decreases. It is preferably made of a flexible plastic and has an adhesive film on its flat underside.
- this plaster rail shown is installed so that it emerges from the plaster surface and lies approximately in the palm of the hand.
- the adhesive plate 8 is removed after removing the protective film on the fingernail of the finger with the operated extensor tendon, for. B. the index finger, glued so that the bead 9 is on the fingertip.
- the rubber cord is now stretched so far by shortening that a gentle tension acts on the adhesive plate and the fingertip. Due to the relatively large length of the rubber cord due to the deflection, the tension changes only slightly when the finger is moved. To reinforce this effect, the rubber cord could also be passed several times over these or other deflection rollers. The importance of the deflection roller 3 is to give the finger-side end of the rubber cord the direction appropriate for the finger in question.
- the pulling device according to FIG. 2 has two transverse webs 10 and 11, which consist for example of plastic and are clipped onto the end part of a plaster rail.
- the crosspiece 10 serves as a bearing for a lever 12 and a larger roller 13, the common bearing axis being approximately perpendicular to the surface extension of the plaster rail.
- a deflection roller 14 is mounted with an axis parallel to the roller 13.
- the other end of the lever 12 has a knob 15 which is latched into one of a plurality of depressions 16 in the cross piece 11.
- Two molded eyelets 17 formed on the crossbar 10 serve to fix one end of a rubber cord, also referred to here as 7, which is first laid around the roller 13 and then around the deflection roller 14 and fastened to the tip of the thumb with the other end.
- the changed by 90 ° compared to the example of FIG. 1 axis orientation of the pulley 14 gives the outgoing Gu mix only in this case the desired lateral direction.
- the tension of the rubber cord 7 can be easily varied.
- the rubber cord is attached to the other fastening eye 17 and guided in mirror image over the rollers. If the lever 12 is made from a relatively soft sheet metal, the axial orientation of the deflection roller 14 can be changed continuously by twisting the lever end and this can also be brought into an inclined position, for example.
- FIG 3 shows, as a further example of an energy store, a coil 19 driven by a spiral spring 18.
- the coil is wound with a non-stretchable cord 20.
- the spring is tensioned.
- the tension can be changed in fine steps.
- Such an energy store can be used as an individual component for such pulling devices and has the advantage of smaller dimensions compared to a tension spring.
- FIGS. 4 and 5 essential parts of the pulling device are combined to form a structural unit which can be plugged onto a plaster cast rail with a certain rung spacing, but of any width in the shown and in the opposite longitudinal orientation.
- An essentially rectangular support plate 22 is provided, on the longitudinal edges of which two double tongues are notched. Each double tongue consists of two mutually facing tongues 23 and 24.
- the support plate 22 is on the End part of the plaster rail placed so that the cross bars 25 fall into the slots between the pair of opposing tongues. By moving the support plate 22 forward, the four tongues 24 then grip the crossbars and hold the support plate. Depending on requirements, the support plate can be placed further forward or further back in the longitudinal direction of the rail.
- a guide roller 26 is mounted on the support plate 22 with an axis perpendicular to the plane of the plate.
- the front edge is folded up and cut out in the middle, so that the remaining parts of the folded edge grip around a bearing pin of a deflection roller 27 and hold it there.
- mounting pins 28 for the rubber cord 7 are formed on two diametrically opposite corners of the supporting plate 22.
- the support plate is placed on the plaster rail in such a way that the deflection roller 27, the axis of which runs parallel to the surface, is located at the front, as is the line guide z. B. required for the middle finger. If the rubber cord is to be guided to the thumb, the support plate 22 is placed upside down, so that the four tongues 23 then also grip under the cross bars 25 in the direction of movement. In this case, the rubber cord 7 is fastened to the other fastening mandrel 28, guided over the deflection roller 27 and over the deflection roller 26 on the desired side in front of the thumb. This is indicated by dash-dotted lines.
- a simple U-shaped wire is used as the base, the spars 30 of which are placed in shafts 31 in the region near the web. This results in better adhesion in the plaster cast body.
- This base is integrated so that the bar ends protrude towards the palm. 8 shows two transverse embossments 32 at the end sections appropriate.
- the support plate which is also rectangular in this example, has four right-angled incisions on the longitudinal edges, as a result of which five tabs are separated, which are deformed into channel-shaped claws.
- the upper claws 34 are arched upwards and the intermediate lower claws 35 are arched downwards. In this way, the support plate 33 can be pushed in the longitudinal direction onto the bars 30, the claws 34 and 35 nestling closely around the bars.
- the transverse embossments 32 come with their raised side into the gaps between the upper claws 34. This creates a locking effect.
- Two deflection rollers 36 and 37 are mounted on the support plate 33.
- the screw terminals each consist of a fork-shaped core 38, onto which a knurled cylindrical cap 39 is screwed.
- a pin sitting on the core 38 forms the axis of the deflection roller in question and is fastened by means of a screw 40 in each case.
- the arrangement perpendicular to the support plate 33 with the deflection roller 36 is screwed directly onto the surface of the support plate.
- the axle journal of the other arrangement parallel to the supporting plate passes through a first bearing tongue 41 bent up at right angles from the supporting plate and is screwed to a second bearing tongue 42.
- Fig. 6 shows how the rubber cord 7 is guided through the clamp connected to the deflection roller 37 and clamped by tightening the cap 39. By loosening the cap, the rubber cord can be pulled back as desired and clamped again at another point. So the pulling device can be precisely adapted to the power requirement.
- the support plate 33 is attached in reverse, so that the deflection roller 36 is then in front. In this case, the rubber cord is then attached using the other clamp.
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Manipulator (AREA)
- Window Of Vehicle (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4108231 | 1991-03-14 | ||
DE4108231A DE4108231A1 (en) | 1991-03-14 | 1991-03-14 | ELASTIC PULLING DEVICE FOR MOVING A FINGER |
PCT/DE1992/000223 WO1992016264A1 (en) | 1991-03-14 | 1992-03-16 | Elastic traction device for training finger movement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0529038A1 true EP0529038A1 (en) | 1993-03-03 |
EP0529038B1 EP0529038B1 (en) | 1994-12-14 |
Family
ID=6427259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92906442A Expired - Lifetime EP0529038B1 (en) | 1991-03-14 | 1992-03-16 | Elastic traction device for training finger movement |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0529038B1 (en) |
AT (1) | ATE115424T1 (en) |
DE (2) | DE4108231A1 (en) |
WO (1) | WO1992016264A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7721443B2 (en) | 2001-03-23 | 2010-05-25 | International Rectifier Corporation | Method for producing a vehicle axle |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3782719A (en) * | 1972-04-21 | 1974-01-01 | N Kuhlman | Finger exercising device |
US4455019A (en) * | 1982-07-12 | 1984-06-19 | Harris John E | Exerciser for finger, hand, wrist and forearm |
GB8426306D0 (en) * | 1984-10-17 | 1984-11-21 | Mediscus Prod Ltd | Indicator for physiotherapeutic device |
US4644938A (en) * | 1985-01-22 | 1987-02-24 | Danninger Medical Technology | Hand exerciser |
US4772012A (en) * | 1986-10-03 | 1988-09-20 | The Christine M. Kleinert Institute For Hand And Micro-Surgery, Inc. | Postoperative dynamic hand splint |
US4949711A (en) * | 1989-03-08 | 1990-08-21 | North Coast Medical, Inc. | Dynamic mp joint extension splint |
-
1991
- 1991-03-14 DE DE4108231A patent/DE4108231A1/en not_active Withdrawn
-
1992
- 1992-03-16 EP EP92906442A patent/EP0529038B1/en not_active Expired - Lifetime
- 1992-03-16 AT AT92906442T patent/ATE115424T1/en not_active IP Right Cessation
- 1992-03-16 WO PCT/DE1992/000223 patent/WO1992016264A1/en active IP Right Grant
- 1992-03-16 DE DE59200963T patent/DE59200963D1/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9216264A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7721443B2 (en) | 2001-03-23 | 2010-05-25 | International Rectifier Corporation | Method for producing a vehicle axle |
Also Published As
Publication number | Publication date |
---|---|
ATE115424T1 (en) | 1994-12-15 |
EP0529038B1 (en) | 1994-12-14 |
DE4108231A1 (en) | 1992-09-17 |
DE59200963D1 (en) | 1995-01-26 |
WO1992016264A1 (en) | 1992-10-01 |
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