GB2285981A - Polymer material for the production of medical artifacts - Google Patents
Polymer material for the production of medical artifacts Download PDFInfo
- Publication number
- GB2285981A GB2285981A GB9500766A GB9500766A GB2285981A GB 2285981 A GB2285981 A GB 2285981A GB 9500766 A GB9500766 A GB 9500766A GB 9500766 A GB9500766 A GB 9500766A GB 2285981 A GB2285981 A GB 2285981A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polymer material
- medical
- detectable
- production
- additive
- 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- Withdrawn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
- 239000002861 polymer material Substances 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000000654 additive Substances 0.000 claims abstract description 7
- 230000000996 additive effect Effects 0.000 claims abstract description 7
- 238000002604 ultrasonography Methods 0.000 claims abstract description 7
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 241001465754 Metazoa Species 0.000 claims abstract description 4
- 229920001059 synthetic polymer Polymers 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 2
- 230000006378 damage Effects 0.000 description 4
- 239000012634 fragment Substances 0.000 description 4
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 241000167880 Hirundinidae Species 0.000 description 1
- 206010023149 Jaw fracture Diseases 0.000 description 1
- 208000003443 Unconsciousness Diseases 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000008736 traumatic injury Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/08—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions
- A63B71/085—Mouth or teeth protectors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A polymer material suitable for the production of medical artifact, comprises a mouldable synthetic polymer which is (i) capable of being laminated, (ii) relatively soft at the temperature of the human or animal body; and (iii) which is rendered radio-opaque and/or ultra sound detectable by having had dispersed therein an additive, in particulate form, which is detectable by external X-ray and/or ultra sound detection means. The artifact may be a mouth guard and the additive may be barium sulphate.
Description
POLYMER MATERIAL SUITABLE FOR THE PRODUCTION OF MEDICAL
ARTIFACTS
This invention relates to a polymer material suitable for the production of medical artifacts such as mouth guards, or indeed for the production of artifacts usable in any operative procedure involving investigation of a hollow organ within a human or other animal body.
The term "mouth guard" is also to be taken to include bite rehabilitation protection appliances.
Mouth guards are used to protect teeth and supporting structures from traumatic injury which may occur when the wearer is involved in a contact sport such as rugby football, hockey, boxing etc., or in a sports activity, such as skiing or horse-riding, where collision damage can take place with an inanimate object. In detail, a mouth guard is fitted over the teeth of the upper jaw of the wearer with a view to obviating injuries such as tooth damage, tooth penetration of the user's lips or cheeks, lower jaw fracture, concussion etc. Another quite unrelated use is for persons who have a tendency for largely uncontrollable lower jaw movement resulting in grinding of teeth, possibly during sleep, or parafunctional behaviour which might bring teeth into heavy contact.
In the past, mouth guards have been produced in either ethylene vinyl acetate (EVA), which results in a "soft" mouth guard, or an acrylic resin, which results in a "hard" mouth guard, either version being custom made and requiring impressions and/or fittings in a dental surgery.
Whilst such mouth guards provide a reasonable degree of injury protection or mitigation, most mouth guards are radiolucent. Hence a difficulty may arise with say an unconscious person subsequent to a sporting accident, in not knowing whether a missing mouth guard has been swallowed in whole or in part, and hence is in an airway or the stomach of that person, or in not knowing whether a fragmented mouth guard is partially embedded in that person's soft tissue or bone. A known proposal aimed at overcoming such difficulties has been to embed a small aluminium marker strip in the mouth guard, so that the location of say a swallowed mouth guard can be determined.An obvious drawback is that if the wearer bites through the mouth guard and swallows but a fragment of the mouth guard, the swallowed fragment may not be that portion bearing the embedded marker strip, and the location of the missing fragment remains unknown.
Consequently, there is a demand for a polymer material for medical artifact such as mouth guards that is readily detectable, in both whole and fragmented form, by detection means such as X-ray equipment.
According to a first aspect of the present invention there is provided a polymer material suitable for the production of medical artifact, comprising a mouldable synthetic polymer which is (i) capable of being laminated, (ii) relatively soft at the temperature of the human or animal body; and (iii) which is rendered radio-opaque and/or ultra sound detectable by having had dispersed therein an additive, in particulate form, which is detectable by external X-ray and/or ultra sound detection means.
Accordingly to a second aspect of the invention, there is provided a medical artifact produced from the above defined polymer material.
According to a third aspect of the invention, there is provided a mouth guard produced from the above defined polymer material.
Thus, with say a mouth guard produced in accordance with the third aspect of the invention, it is of no consequence whether the mouth guard has been swallowed in whole or in part by the wearer, for due to the dispersion of the detectable additive throughout the polymer material, even the smallest swallowed fragment, being radio-opaque and/or ultra sound detectable, can be immediately detected by the detection means.
Appropriately, EVA is used as the polymer material, which is not only soft at mouth temperature, but is also an excellent shock absorber. Clearly, the additive needs to be not only compatible with EVA, but also non-toxic to the user.
In this respect, barium sulphate, reduced to a suitable particle size, has been found appropriate.
Claims (5)
1. A polymer material suitable for the production of medical artifact, comprising a mouldable synthetic polymer which is (i) capable of being laminated, (ii) relatively soft at the temperature of the human or animal body; and (iii) which is rendered radio-opaque and/or ultra sound detectable by having had dispersed therein an additive, in particulate form, which is detectable by external X-ray and/or ultra sound detection means.
2. A polymer material as claimed in Claim 1, wherein the mouldable synthetic polymer is EVA.
3. A polymer material as claimed in Claim 1 or
Claim 2, wherein the additive is barium sulphate reduced to a suitable particle size.
4. A medical artifact produced from the polymer material defined in any one of Claims l to 3.
5. A mouth guard produced from the polymer material defined in any one of Claims 1 to 3.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9401577A GB9401577D0 (en) | 1994-01-27 | 1994-01-27 | Polymer material suitable for the production of medical artifacts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9500766D0 GB9500766D0 (en) | 1995-03-08 |
| GB2285981A true GB2285981A (en) | 1995-08-02 |
Family
ID=10749428
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9401577A Pending GB9401577D0 (en) | 1994-01-27 | 1994-01-27 | Polymer material suitable for the production of medical artifacts |
| GB9500766A Withdrawn GB2285981A (en) | 1994-01-27 | 1995-01-16 | Polymer material for the production of medical artifacts |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9401577A Pending GB9401577D0 (en) | 1994-01-27 | 1994-01-27 | Polymer material suitable for the production of medical artifacts |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB9401577D0 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999004722A1 (en) * | 1997-07-23 | 1999-02-04 | Richard Spottiswoode | Mouthguard with insignia |
| WO1999031172A1 (en) * | 1997-12-17 | 1999-06-24 | Bayer Aktiengesellschaft | X-ray opaque thermoplastic moulding compound |
| WO2005061649A1 (en) * | 2003-12-24 | 2005-07-07 | James Walker New Zealand Limited | Resilient compound for sealing device comprising detectable material such as barium sulfate |
| EP1581047A4 (en) * | 2003-01-09 | 2006-05-10 | Tfh Publications Inc | Radiopaque animal chew |
| US8722037B2 (en) | 2004-03-19 | 2014-05-13 | Meck Sharp & Dohme B.V. | X-ray visible drug delivery device |
| US9636402B2 (en) | 2000-11-16 | 2017-05-02 | Microspherix Llc | Flexible and/or elastic brachytherapy seed or strand |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4044762A (en) * | 1973-02-12 | 1977-08-30 | Jacobs Alfred G | Athletic mouthguard |
| US4185626A (en) * | 1976-12-20 | 1980-01-29 | Johnson & Johnson | Material detectably by X-rays |
| US4277389A (en) * | 1979-11-05 | 1981-07-07 | The Polymer Corporation | X ray scattering device |
| EP0101650A2 (en) * | 1982-08-20 | 1984-02-29 | Vernon-Carus Limited | Radio opaque fibres |
| US5038047A (en) * | 1990-03-19 | 1991-08-06 | Still Shirley S | Radiation shield hood for the head and neck |
| WO1993011544A1 (en) * | 1991-12-05 | 1993-06-10 | Polygenex International, Inc. | Radiation resistant film |
| WO1993012180A1 (en) * | 1991-12-12 | 1993-06-24 | Dsm N.V. | Polymer composition comprising a semicrystalline matrix, a filler and a third material |
| WO1994028948A1 (en) * | 1993-06-07 | 1994-12-22 | Lenzing Aktiengesellschaft | Plastic mixture containing barium sulphate for the absorption of x-rays |
-
1994
- 1994-01-27 GB GB9401577A patent/GB9401577D0/en active Pending
-
1995
- 1995-01-16 GB GB9500766A patent/GB2285981A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4044762A (en) * | 1973-02-12 | 1977-08-30 | Jacobs Alfred G | Athletic mouthguard |
| US4185626A (en) * | 1976-12-20 | 1980-01-29 | Johnson & Johnson | Material detectably by X-rays |
| US4277389A (en) * | 1979-11-05 | 1981-07-07 | The Polymer Corporation | X ray scattering device |
| EP0101650A2 (en) * | 1982-08-20 | 1984-02-29 | Vernon-Carus Limited | Radio opaque fibres |
| US5038047A (en) * | 1990-03-19 | 1991-08-06 | Still Shirley S | Radiation shield hood for the head and neck |
| WO1993011544A1 (en) * | 1991-12-05 | 1993-06-10 | Polygenex International, Inc. | Radiation resistant film |
| WO1993012180A1 (en) * | 1991-12-12 | 1993-06-24 | Dsm N.V. | Polymer composition comprising a semicrystalline matrix, a filler and a third material |
| WO1994028948A1 (en) * | 1993-06-07 | 1994-12-22 | Lenzing Aktiengesellschaft | Plastic mixture containing barium sulphate for the absorption of x-rays |
Non-Patent Citations (1)
| Title |
|---|
| WPI Abstract Accession No. 89-245374/34 and JP010178540 A * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999004722A1 (en) * | 1997-07-23 | 1999-02-04 | Richard Spottiswoode | Mouthguard with insignia |
| GB2341785A (en) * | 1997-07-23 | 2000-03-29 | Richard Spottiswoode | Mouthguard with insignia |
| US6321752B1 (en) | 1997-07-23 | 2001-11-27 | Richard Spottiswoode | Mouthguard with insignia |
| WO1999031172A1 (en) * | 1997-12-17 | 1999-06-24 | Bayer Aktiengesellschaft | X-ray opaque thermoplastic moulding compound |
| US9636402B2 (en) | 2000-11-16 | 2017-05-02 | Microspherix Llc | Flexible and/or elastic brachytherapy seed or strand |
| US10493181B2 (en) | 2000-11-16 | 2019-12-03 | Microspherix Llc | Flexible and/or elastic brachytherapy seed or strand |
| US10994058B2 (en) | 2000-11-16 | 2021-05-04 | Microspherix Llc | Method for administering a flexible hormone rod |
| EP1581047A4 (en) * | 2003-01-09 | 2006-05-10 | Tfh Publications Inc | Radiopaque animal chew |
| US7452929B2 (en) | 2003-01-09 | 2008-11-18 | T.F.H. Publications, Inc. | Radiopaque animal chew |
| WO2005061649A1 (en) * | 2003-12-24 | 2005-07-07 | James Walker New Zealand Limited | Resilient compound for sealing device comprising detectable material such as barium sulfate |
| US8722037B2 (en) | 2004-03-19 | 2014-05-13 | Meck Sharp & Dohme B.V. | X-ray visible drug delivery device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9401577D0 (en) | 1994-03-23 |
| GB9500766D0 (en) | 1995-03-08 |
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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) |