WO1999004693A1 - Diaphragme de protection hygienique pour un stethoscope medical - Google Patents
Diaphragme de protection hygienique pour un stethoscope medical Download PDFInfo
- Publication number
- WO1999004693A1 WO1999004693A1 PCT/FR1998/001610 FR9801610W WO9904693A1 WO 1999004693 A1 WO1999004693 A1 WO 1999004693A1 FR 9801610 W FR9801610 W FR 9801610W WO 9904693 A1 WO9904693 A1 WO 9904693A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- diaphragm
- mold
- hem
- latex
- diameter
- Prior art date
Links
- 229920000126 latex Polymers 0.000 claims abstract description 19
- 239000004816 latex Substances 0.000 claims abstract description 19
- 238000002555 auscultation Methods 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 229920001971 elastomer Polymers 0.000 claims abstract description 5
- 230000006978 adaptation Effects 0.000 claims abstract description 4
- 230000005489 elastic deformation Effects 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 229920003008 liquid latex Polymers 0.000 claims description 8
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000007598 dipping method Methods 0.000 claims description 5
- 239000000701 coagulant Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000012528 membrane Substances 0.000 description 10
- 238000001035 drying Methods 0.000 description 4
- 230000002792 vascular Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 244000052616 bacterial pathogen Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B7/00—Instruments for auscultation
- A61B7/02—Stethoscopes
Definitions
- the invention relates to a hygienic protective diaphragm for a medical stethoscope having at least one auscultation head, the diaphragm being formed by a thin latex or flexible rubber cap, having a gripping hem at its periphery for facilitate installation and replacement after use.
- Document FR-A-2.734.704 relates to an adhesive protection system.
- the manufacture of such a device requires the use of two materials, and its application does not allow coverage of the entire ia membrane of the stethoscope.
- Document US-A-5,365,023 describes a stethoscope equipped with a flexible latex cap, hemmed at its periphery, and covering the entire surface of the membrane and of the vascular cone.
- the diameter of the cap is much smaller than that of the membrane, which necessitates a tensioning of the latex following an elastic deformation by stretching during its positioning.
- the hem reaches the base of the head, and stays away from the peripheral cylindrical rim.
- a first object of the invention consists in producing a hygienic protective diaphragm for a stethoscope, easy to put in place, for single use or reusable after sterilization.
- the diaphragm has substantially the same diameter as the auscultation head to be protected, - an annular cavity is formed between the hem and the bottom wall facilitating the symmetrical adaptation of the diaphragm on the peripheral edge of the head,
- the diameter of the cavity is slightly greater than the internal diameter of the hem.
- the diaphragm could even replace the entire membrane, creating a new generation of stethoscopes with interchangeable membranes.
- the diaphragm can of course have different dimensions in order to be able to adapt it to all types of stethoscopes (children, adults).
- a second object of the invention consists in developing a simple method of manufacturing by molding the hygienic protective diaphragm for a stethoscope. This process is characterized by the following stages:
- a coloring agent is introduced into the liquid latex before the mold is introduced into the container.
- a third object of the invention relates to a device for implementing the manufacturing process. It comprises a dipping mold with a cylindrical footprint corresponding to the diameter of the diaphragm, the lower end of the mold comprising:
- a rounded peripheral boss extending axially the groove to a cylindrical end washer for obtaining said annular cavity.
- the diameter of the washer is slightly greater than the diameter of the mold.
- Figure 1 is a schematic view of a stethoscope equipped with a protective diaphragm on each monitoring head;
- Figure 2 shows a sectional view of a diaphragm according to the invention
- Figure 3 is a plan view of Figure 2;
- FIG. 4 shows the dipping molding device for the manufacture of the diaphragm
- a medical stethoscope 10 comprises a first auscultation head 12 and a second auscultation head 14 arranged at opposite ends of a central body 16, which has an outlet nozzle 18 to which is connected the flexible pipe 19 of the hearing listening system (not shown).
- the first monitoring head 12 is formed by way of example by a frustoconical base made of metallic material, equipped with a flat membrane 20 made of plastic material.
- the diameter of the membrane 20 is greater than that of the vascular cone 22 constituting the second auscultation head 14.
- a two-way selector 24 is provided in the body 16 for the communication of the outlet nozzle 18 with the one of the monitoring heads 12, 14.
- each auscultation head 12, 14 of the stethoscope can be covered by a single-use or re-sterilizable protective diaphragm 26.
- the diaphragm 26 is constituted by a cap or disc of latex or flexible rubber of small thickness, having a gripping hem 28 at its periphery to facilitate the positioning and replacement operations after use.
- the diaphragm 26 may have different dimensions depending on the types of stethoscopes.
- the dimensions of the diaphragm 26 of the vascular cone 22 are of course smaller than those of the membrane 20 of the first auscultation head 12.
- the diaphragm 26 has substantially the same diameter as the membrane 20 of the head 12, and the hem 28 follows the shape of the cylindrical rim without requiring tensioning, and deformation by stretching when it is put in place. square.
- An annular cavity 30 is formed between the hem 28 and the bottom wall 32, facilitating the symmetrical adaptation of the diaphragm 26 on the peripheral rim of the head 12.
- the diameter of the cavity 30 is between the internal diameter and the diameter outer hem 28.
- the bottom wall 32 is perfectly waterproof and flexible, and can serve as a means of advertising support. Coming into direct contact with the patient's skin, on the other hand, avoids any feeling of cold during auscultation.
- the packaging of the diaphragms 26 can be carried out in different ways, either in bulk in a storage box without individual packaging, or sterile in an individual sealed envelope.
- the manufacture of the diaphragms 26 is carried out by means of the forming device 34 of FIG. 4.
- the forming device 34 comprises a dipping mold 36 of cylindrical shape, attached by fixing means 37 to a support plate 38, which is movable in the vertical direction indicated by the arrow F1.
- the lower end of the mold 36 has an annular groove 40 favoring the maintenance of the rolled edge constituting the hem 28.
- the groove 40 is extended axially by a peripheral boss 42 of rounded shape, and an end washer 44 of cylindrical shape.
- the arrangement of the boss 42 and the washer 44 makes it possible during molding to obtain the annular cavity 30 between the hem 28 and the bottom 32.
- the mold 36 is soaked in a container 46 filled with liquid latex 48.
- the height of the dipping mold 36 is approximately 100 mm, while the diameter of the washer 44 is 2 mm greater than that of the mold 36.
- the diameter of the mold 36 is 38 mm.
- the diameter of the mold is 18 mm.
- the process for manufacturing a diaphragm 26 operates as follows:
- the mold 36 is first dipped in a coagulant bath based on calcium nitrate intended to promote the adhesion of the latex to the wall of the mold 36.
- the mold 36 is then dried in an oven for short time, around 5 minutes.
- the mold 36 is immersed in the container 46 of natural liquid latex 48 to a predetermined depth of the order of 80 mm.
- the cylindrical mold 36 is coated with a layer of latex 50 (FIG. 5) which adheres to the wall thanks to the presence of the coagulant.
- the whole is introduced into the oven for drying and setting the latex.
- the drying time is close to 5 minutes, and the thickness of the latex layer is between 0.35 and 0.45 mm.
- a third phase the upper cylindrical end of the latex layer 50 is rolled manually on itself (arrow F2, FIG. 6) in the vertical direction, until the arrival in the groove 40 to obtain hem 28 (figure 7).
- a fourth final phase rinsing is carried out in hot water, followed by drying in an oven for approximately 30 minutes.
- Natural liquid latex 48 can of course be replaced by a mixture of latex and silicone, known under the registered trademark SILATEX.
- a coloring agent can be introduced into the liquid latex 48 so as to obtain diaphragms of different colorings. Any other elastomer material can be used for the manufacture of the diaphragms.
- the use of a diaphragm 26 can be unique, and is then disposable after each auscultation.
- the diaphragm can also be re-sterilizable by treatment in an autoclave, or by radiation, or by soaking in a disinfectant solution.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Acoustics & Sound (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Moulding By Coating Moulds (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Devices For Medical Bathing And Washing (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002298485A CA2298485A1 (fr) | 1997-07-22 | 1998-07-21 | Diaphragme de protection hygienique pour un stethoscope medical |
JP2000503763A JP2001510699A (ja) | 1997-07-22 | 1998-07-21 | 医療用聴診器の衛生保護隔膜 |
EP98940303A EP0998221A1 (fr) | 1997-07-22 | 1998-07-21 | Diaphragme de protection hygienique pour un stethoscope medical |
AU88660/98A AU8866098A (en) | 1997-07-22 | 1998-07-21 | Diaphragm for hygienic protection of a medical stethoscope |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9709533A FR2766351A1 (fr) | 1997-07-22 | 1997-07-22 | Disque de protection de la membrane d'un stethoscope, a usage unique |
FR97/09533 | 1997-07-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999004693A1 true WO1999004693A1 (fr) | 1999-02-04 |
Family
ID=9509672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1998/001610 WO1999004693A1 (fr) | 1997-07-22 | 1998-07-21 | Diaphragme de protection hygienique pour un stethoscope medical |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0998221A1 (fr) |
JP (1) | JP2001510699A (fr) |
CN (1) | CN1265011A (fr) |
AU (1) | AU8866098A (fr) |
CA (1) | CA2298485A1 (fr) |
FR (1) | FR2766351A1 (fr) |
WO (1) | WO1999004693A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2803187A1 (fr) | 2000-01-04 | 2001-07-06 | Massioui Youssef El | Dispositif de protection pour instrument medical tel que stethoscope |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100484464C (zh) * | 2005-05-31 | 2009-05-06 | 杨章民 | 居家保健交互式装置 |
JP2021502221A (ja) * | 2017-11-10 | 2021-01-28 | バイタルチェーンズ コーポレイション | 聴診器および使い捨てカプセルのダイヤフラムセット |
GB2598323A (en) * | 2020-08-25 | 2022-03-02 | Agahi Arjang | A medical instrument cover dispensing apparatus and a cover storage arrangement and cover for use therewith |
US12186153B2 (en) | 2021-09-17 | 2025-01-07 | Dentsply Sirona Inc. | Automated tooth administration in a dental restoration workflow |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4461368A (en) * | 1982-04-15 | 1984-07-24 | Plourde R Gilles | Diaphragm cover for a stethoscope |
EP0471553A1 (fr) * | 1990-08-14 | 1992-02-19 | Hollister Incorporated | Méthode de fabrication en continu d'un cathéter à usage externe masculin à doublure adhésive |
US5365023A (en) | 1993-05-13 | 1994-11-15 | Lawton Gary P | Elastomeric stethoscope cover |
WO1996008352A1 (fr) * | 1994-09-16 | 1996-03-21 | Ansell Perry Inc. | Articles elastomeres |
FR2734704A1 (fr) | 1995-05-31 | 1996-12-06 | Tondeur Monique Rothan | Dispositif de protection de la membrane d'un stethoscope medical |
-
1997
- 1997-07-22 FR FR9709533A patent/FR2766351A1/fr not_active Revoked
-
1998
- 1998-07-21 WO PCT/FR1998/001610 patent/WO1999004693A1/fr not_active Application Discontinuation
- 1998-07-21 CA CA002298485A patent/CA2298485A1/fr not_active Abandoned
- 1998-07-21 EP EP98940303A patent/EP0998221A1/fr not_active Withdrawn
- 1998-07-21 AU AU88660/98A patent/AU8866098A/en not_active Abandoned
- 1998-07-21 JP JP2000503763A patent/JP2001510699A/ja not_active Withdrawn
- 1998-07-21 CN CN98807533A patent/CN1265011A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4461368A (en) * | 1982-04-15 | 1984-07-24 | Plourde R Gilles | Diaphragm cover for a stethoscope |
EP0471553A1 (fr) * | 1990-08-14 | 1992-02-19 | Hollister Incorporated | Méthode de fabrication en continu d'un cathéter à usage externe masculin à doublure adhésive |
US5365023A (en) | 1993-05-13 | 1994-11-15 | Lawton Gary P | Elastomeric stethoscope cover |
WO1996008352A1 (fr) * | 1994-09-16 | 1996-03-21 | Ansell Perry Inc. | Articles elastomeres |
FR2734704A1 (fr) | 1995-05-31 | 1996-12-06 | Tondeur Monique Rothan | Dispositif de protection de la membrane d'un stethoscope medical |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2803187A1 (fr) | 2000-01-04 | 2001-07-06 | Massioui Youssef El | Dispositif de protection pour instrument medical tel que stethoscope |
WO2001049179A1 (fr) * | 2000-01-04 | 2001-07-12 | Youssef El Massioui | Dispositif de protection pour instrument medical tel que stethoscope |
Also Published As
Publication number | Publication date |
---|---|
CA2298485A1 (fr) | 1999-02-04 |
JP2001510699A (ja) | 2001-08-07 |
FR2766351A1 (fr) | 1999-01-29 |
CN1265011A (zh) | 2000-08-30 |
AU8866098A (en) | 1999-02-16 |
EP0998221A1 (fr) | 2000-05-10 |
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