GB2349822A - Splinting device - Google Patents
Splinting device Download PDFInfo
- Publication number
- GB2349822A GB2349822A GB9906769A GB9906769A GB2349822A GB 2349822 A GB2349822 A GB 2349822A GB 9906769 A GB9906769 A GB 9906769A GB 9906769 A GB9906769 A GB 9906769A GB 2349822 A GB2349822 A GB 2349822A
- Authority
- GB
- United Kingdom
- Prior art keywords
- splinting
- envelope
- phase change
- splinting device
- change temperature
- 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- Withdrawn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
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
- A61F5/05—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints for immobilising
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/07—Stiffening bandages
- A61L15/12—Stiffening bandages containing macromolecular materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/07—Stiffening bandages
- A61L15/14—Use of materials characterised by their function or physical properties
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Nursing (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
A splinting device comprises a flexible envelope (2), a thermoplastic filling (5) within the envelope. The thermoplastic has a solid-liquid phase change temperature in the range 30{C to 70{C, and an electrical heating element (6) for heating the filling to the phase change temperature. (Figure 1) . The flexible envelope may be a plastic bag and the means for heating the thermoplastic may be contained in the envelope and may as shown, be an electrical element.
Description
2349822 SPLINTING DEVICE The present invention relates to a splinting
device and in particular, but not exclusively, to a device for managing fractures and immobilising joints in trauma or orthopaedic surgery.
Normally, fractured bones or joints are immobilised during the healing process by applying a cast of plaster of Paris or a polymer material. This has the disadvantage that the fracture is completely immobilised for the time that the cast is applied, leading to muscle wasting and a long rehabilitation time. Also, because the cast sets permanently, the fractured bones cannot be adjusted once the cast has been applied and nor can any wound or dressing readily be inspected. A plaster of Paris cast is also applied wet, which may lead to sterility problems. Finally, such casts are generally heavy.
It is an object of the present invention to provide a splinting device that mitigates at least some of the aforementioned disadvantages.
According to the present invention there is provided a splinting device comprising a flexible envelope, a filling of a thermoplastic material that has a solid- liquid phase change temperature in the range 30C to 70C and means for heating the filling to the phase change temperature. Advantageously, the phase change temperature lies in the range 40C to 60C and is preferably approximately 50C.
Advantageously, at temperatures above the phase change temperature, the thermoplastic material is thixotropic.
Advantageously, the envelope comprises a plastics bag.
Advantageously, the heating means includes an electrical heating device.
Advantageously, the electrical heating device is contained within the envelope. The electrical heating device may comprise an electrical element or, alternatively, it may include a plurality of electrodes, for passing an electrical current through the 0 thermoplastic material to cause ohmic heating thereof.
The invention provides the following advantages:
2 the device is lightweight; it is applied dry, giving improved sterility; it is very easy to apply and remove; the thermoplastics material has a fast solidification time; because the material can change phase repeatedly, the fracture can be adjusted after solidification; rehabilitation time is reduced; the device can be removed to permit dressing and wound inspection; the material is radioleucent, permitting X-ray, CT and MRI scanning; to the device is re-usable; and treatment using the device is entirely non-invasive.
Use of the device also reduces the period of joint restriction, allows for alignment changes in long healing periods and provides for early mobilisation.
An embodiment of the invention will now be described, by way of example, with reference to the accompany drawings, in which:
Figure I is a plan view of the splinting device laid flat; Figure 2 is a perspective view of the splinting device set in a U-shaped form.
Figure 3 is a section on line III-III; and An example of a splinting device is shown in Figures 1 and 2. The splinting device 1 includes an envelope 2 in the form of a closed plastics bag having two substantially square sides 3 that are sealed to one another around their four edges 4. The envelope 2 contains a filling 5 of thermoplastics material that changes phase from a solid to a liquid at a temperature in the range 30C to 70C, advantageously 40C to 60C and preferably approximately 50C. This thermoplastics material 5 may, for example, be 3 the product sold under the trade mark THERMAPHASE Grade FSF-52, manufactured by Orcus Inc. This material has a phase change temperature of 52C, above which the material is in the form of a thixotropic liquid.
The envelope 2 also contains an electrical heating element 6, shown in Figure I in 5 broken lines, for heating the thermoplastics filling 5 to the phase change temperature. This element 6 is connected to a pair of electric terminals 7 provided on the outer surface of the envelope 2 Current may be supplied through the terminals 7 to the heating element 6 from a suitable AC or DC power source.
Alternatively, the thermoplastics filling 5 may be heated by passing a current directly 10 through the thermoplastics material (providing that the material is electrically conductive). A pair of electrodes may be provided within the envelope, through which a potential difference may be applied across the thermoplastics medium. These electrodes may, for example, be formed on the inside faces of the sides 3.
Alternatively, a non-electrical heating means may be provided: for example, the 15 device may contain chemicals for generating heat by means of an exothermic chemical reaction. An external heating source may also be used.
In use, a current is supplied through the heating element 6 to heat the thermoplastics filling 5 to the phase change temperature. At this temperature, the thermoplastics filling changes state to a thixotropic liquid that can be moulded to any desired shape.
Traction is applied to align the fractured bones correctly and the heated splinting device is then applied to the site of the fracture and moulded into shape. For example, in the case of a broken forearm, the splinting device I may be wrapped around the arm in a U-shaped form, as shown in Figure 3. The current is then switched off, allowing the thermoplastics filling to cool and re-solidify, after which traction can be released. The splinting device I acts in the same way as a plaster of Paris cast to retain the fractured bones in correct alignment and to protect them during the healing process.
One major advantage of the device is that the thermoplastics material can be softened whenever necessary to correct the alignment of the bones, to check any wound or 4 dressing, and to allow manipulation of the joints and exercise of the muscles. Muscle wastage can thus be reduced and rehabilitation time can be shortened considerably.
The splinting device is very lightweight and more comfortable than a traditional plaster of Paris cast. It is applied dry, ensuring sterility. The materials are also radioleucent permitting the use of X-rays, CT or MRI scanning. The splinting device is also completely re-usable.
Various modifications of the invention are possible. For example, the splinting device may take various different forms and shapes for use at different fracture sites, for example on the upper limbs, lower limbs and wrist joints. They may also be manufactured in different sizes for use on adults or children. The device may also be printed with an attractive design or, for children, cartoon characters.
Claims (10)
1. A splinting device comprising a flexible envelope, a filling within the envelope of a thermoplastic material that has a solid-liquid phase change temperature in the range 30C to 70C, and means for heating the filling to the phase change temperature.
2. A splinting device according to claim 1, wherein the phase change temperature lies in the range 40C to 60C.
3. A splinting device according to claim 1, wherein the phase change temperature is approximately 50C.
4. A splinting device according to any one of the preceding claims, wherein at temperatures above the phase change temperature, the thermoplastic material is thixotropic.
5. A splinting device according to any one of the preceding claims, wherein the envelope comprises a plastics bag.
6. A splinting device according to any one of the preceding claims, wherein the heating means includes an electrical heating device.
7. A splinting device according to claim 6, wherein the electrical heating device is contained within the envelope.
8. A splinting device according to claim 6 or claim 7, wherein the electrical heating device comprises an electrical element.
9. A splinting device according to claim 6 or claim 7, wherein the electrical heating device comprises a plurality of electrodes, for passing an electrical current through the then-noplastic material to cause ohmic heating thereof.
10. A splinting device substantially as described herein with reference to and as illustrated by the accompanying drawings.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9906769A GB2349822A (en) | 1999-03-25 | 1999-03-25 | Splinting device |
PCT/GB2000/000995 WO2000057821A1 (en) | 1999-03-25 | 2000-03-23 | Splinting device |
AU34400/00A AU3440000A (en) | 1999-03-25 | 2000-03-23 | Splinting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9906769A GB2349822A (en) | 1999-03-25 | 1999-03-25 | Splinting device |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9906769D0 GB9906769D0 (en) | 1999-05-19 |
GB2349822A true GB2349822A (en) | 2000-11-15 |
GB2349822A9 GB2349822A9 (en) | 2002-11-18 |
Family
ID=10850257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9906769A Withdrawn GB2349822A (en) | 1999-03-25 | 1999-03-25 | Splinting device |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU3440000A (en) |
GB (1) | GB2349822A (en) |
WO (1) | WO2000057821A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010033809A1 (en) * | 2010-08-09 | 2012-02-09 | Otto Bock Healthcare Gmbh | Orthopedic molding part assembly and method for producing a orthopedic molding |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0625861D0 (en) * | 2006-12-22 | 2007-02-07 | Chang Benjamin | Modified flexicast/flexisplint |
GB2513536A (en) * | 2012-12-19 | 2014-11-05 | Ronald Vincent Taylor | Orthopaedic cast replacement |
WO2015124900A1 (en) * | 2014-02-21 | 2015-08-27 | Torc2 Ltd | Thermoplastic article |
CN104510554B (en) * | 2014-12-11 | 2016-08-24 | 南京鼓楼医院 | Orthopedic fixation device |
PL425300A1 (en) * | 2018-04-20 | 2019-10-21 | Siwak Mateusz | Device for representation of the shape of a spatial form |
CN112168446B (en) * | 2020-10-09 | 2021-09-24 | 吉林大学 | Orthopedic rehabilitation nursing waist supporting device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB698255A (en) * | 1949-09-13 | 1953-10-14 | Karl Egen | Improvements in mouldable articles for application to the human body |
US4729369A (en) * | 1986-06-20 | 1988-03-08 | Cook Donald E | Toe splint and bunion correction device |
EP0410883A2 (en) * | 1989-07-27 | 1991-01-30 | FIDIA S.p.A. | Di-lysogangliosides derivatives |
US5016624A (en) * | 1990-04-02 | 1991-05-21 | Garrett R Patrick | Reformable support structure |
-
1999
- 1999-03-25 GB GB9906769A patent/GB2349822A/en not_active Withdrawn
-
2000
- 2000-03-23 WO PCT/GB2000/000995 patent/WO2000057821A1/en active Application Filing
- 2000-03-23 AU AU34400/00A patent/AU3440000A/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB698255A (en) * | 1949-09-13 | 1953-10-14 | Karl Egen | Improvements in mouldable articles for application to the human body |
US4729369A (en) * | 1986-06-20 | 1988-03-08 | Cook Donald E | Toe splint and bunion correction device |
EP0410883A2 (en) * | 1989-07-27 | 1991-01-30 | FIDIA S.p.A. | Di-lysogangliosides derivatives |
US5016624A (en) * | 1990-04-02 | 1991-05-21 | Garrett R Patrick | Reformable support structure |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010033809A1 (en) * | 2010-08-09 | 2012-02-09 | Otto Bock Healthcare Gmbh | Orthopedic molding part assembly and method for producing a orthopedic molding |
WO2012019744A2 (en) | 2010-08-09 | 2012-02-16 | Otto Bock Healthcare Gmbh | Orthopaedic moulding arrangement and method for producing an orthopaedic moulding |
US9751243B2 (en) | 2010-08-09 | 2017-09-05 | Otto Bock Healthcare Gmbh | Orthopaedic moulding arrangement and method for producing an orthopaedic moulding |
Also Published As
Publication number | Publication date |
---|---|
GB2349822A9 (en) | 2002-11-18 |
AU3440000A (en) | 2000-10-16 |
GB9906769D0 (en) | 1999-05-19 |
WO2000057821A1 (en) | 2000-10-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |