WO1999004693A1 - Diaphragm for hygienic protection of a medical stethoscope - Google Patents
Diaphragm for hygienic protection of a medical stethoscope 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
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)
- Devices For Medical Bathing And Washing (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU88660/98A AU8866098A (en) | 1997-07-22 | 1998-07-21 | Diaphragm for hygienic protection of a medical stethoscope |
JP2000503763A JP2001510699A (en) | 1997-07-22 | 1998-07-21 | Medical stethoscope hygiene protection diaphragm |
EP98940303A EP0998221A1 (en) | 1997-07-22 | 1998-07-21 | Diaphragm for hygienic protection of a medical stethoscope |
CA002298485A CA2298485A1 (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 |
---|---|---|---|
FR97/09533 | 1997-07-22 | ||
FR9709533A FR2766351A1 (en) | 1997-07-22 | 1997-07-22 | PROTECTIVE DISC FOR THE MEMBRANE OF A STETHOSCOPE, FOR SINGLE USE |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999004693A1 true WO1999004693A1 (en) | 1999-02-04 |
Family
ID=9509672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1998/001610 WO1999004693A1 (en) | 1997-07-22 | 1998-07-21 | Diaphragm for hygienic protection of a medical stethoscope |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0998221A1 (en) |
JP (1) | JP2001510699A (en) |
CN (1) | CN1265011A (en) |
AU (1) | AU8866098A (en) |
CA (1) | CA2298485A1 (en) |
FR (1) | FR2766351A1 (en) |
WO (1) | WO1999004693A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2803187A1 (en) | 2000-01-04 | 2001-07-06 | Massioui Youssef El | PROTECTIVE DEVICE FOR A MEDICAL INSTRUMENT SUCH AS STETHOSCOPE |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111315298A (en) * | 2017-11-10 | 2020-06-19 | 维托臣股份有限公司 | Diaphragm set for stethoscope and disposable capsule thereof |
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 |
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 (en) * | 1990-08-14 | 1992-02-19 | Hollister Incorporated | Continuous method for making adhesive-lined male external catheters |
US5365023A (en) | 1993-05-13 | 1994-11-15 | Lawton Gary P | Elastomeric stethoscope cover |
WO1996008352A1 (en) * | 1994-09-16 | 1996-03-21 | Ansell Perry Inc. | Elastomeric articles |
FR2734704A1 (en) | 1995-05-31 | 1996-12-06 | Tondeur Monique Rothan | DEVICE FOR PROTECTING THE MEMBRANE OF A MEDICAL STETHOSCOPE |
-
1997
- 1997-07-22 FR FR9709533A patent/FR2766351A1/en active Pending
-
1998
- 1998-07-21 AU AU88660/98A patent/AU8866098A/en not_active Abandoned
- 1998-07-21 CN CN98807533A patent/CN1265011A/en active Pending
- 1998-07-21 WO PCT/FR1998/001610 patent/WO1999004693A1/en not_active Application Discontinuation
- 1998-07-21 EP EP98940303A patent/EP0998221A1/en not_active Withdrawn
- 1998-07-21 JP JP2000503763A patent/JP2001510699A/en not_active Withdrawn
- 1998-07-21 CA CA002298485A patent/CA2298485A1/en not_active Abandoned
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 (en) * | 1990-08-14 | 1992-02-19 | Hollister Incorporated | Continuous method for making adhesive-lined male external catheters |
US5365023A (en) | 1993-05-13 | 1994-11-15 | Lawton Gary P | Elastomeric stethoscope cover |
WO1996008352A1 (en) * | 1994-09-16 | 1996-03-21 | Ansell Perry Inc. | Elastomeric articles |
FR2734704A1 (en) | 1995-05-31 | 1996-12-06 | Tondeur Monique Rothan | DEVICE FOR PROTECTING THE MEMBRANE OF A MEDICAL STETHOSCOPE |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2803187A1 (en) | 2000-01-04 | 2001-07-06 | Massioui Youssef El | PROTECTIVE DEVICE FOR A MEDICAL INSTRUMENT SUCH AS STETHOSCOPE |
WO2001049179A1 (en) * | 2000-01-04 | 2001-07-12 | Youssef El Massioui | Protective device for medical instrument such as a stethoscope |
Also Published As
Publication number | Publication date |
---|---|
CN1265011A (en) | 2000-08-30 |
CA2298485A1 (en) | 1999-02-04 |
AU8866098A (en) | 1999-02-16 |
EP0998221A1 (en) | 2000-05-10 |
JP2001510699A (en) | 2001-08-07 |
FR2766351A1 (en) | 1999-01-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0433150B1 (en) | Packaging article for fusible substances, package obtained with such an article and process for manufacturing this article | |
BE1000939A3 (en) | Disposable bottle with trim. | |
EP0165208B1 (en) | Heat-mouldable element and its use | |
CA3028179C (en) | Device for controlling a blood flow produced in a hemorrhagic area | |
MX2011003332A (en) | Site scrub brush. | |
FR2790942A1 (en) | DEVICE FOR PROTECTING AN ENVELOPE, USE OF A DEVICE FOR PROTECTING AN ENVELOPE, METHOD FOR MOUNTING AN ENVELOPE ON A PROBE AND METHOD FOR PRODUCING A DEVICE FOR PROTECTING AN ENVELOPE | |
FR2602129A1 (en) | DISPOSABLE TOOTHBRUSH AFTER USE, WITH TOOTHPASTE DOSE | |
FR2607007A1 (en) | ADHESIVE DRESSING FOR FIRST AID | |
FR2588472A1 (en) | DISPOSABLE BOTTLE | |
FR2838328A1 (en) | Dental impression holder has trough with pleated wall sections and break lines for adjusting shape and size | |
EP1621103B1 (en) | Exfoliating receptacle | |
WO1999004693A1 (en) | Diaphragm for hygienic protection of a medical stethoscope | |
FR3013208B1 (en) | DEVICE FOR CLEANING AND / OR TREATING A DENTAL ARCADE. | |
FR2772569A1 (en) | Disposable toothbrush with toothpaste in bristles | |
WO1996016610A1 (en) | Cleaning utensil for dental hygiene | |
FR2766352A1 (en) | Hygienic protective diaphragm, for auscultation head of stethoscope | |
FR2761259A1 (en) | CERUMEN CLEANING AND EXTRACTION DEVICE | |
FR2889056A1 (en) | PORTABLE INDIVIDUAL DEVICE FOR BATH OF EYE | |
FR2506579A1 (en) | Skin massage liquid application instrument - has liq. passages normally shut and opened by manual pressure deforming resilient walls | |
FR2758697A1 (en) | METHODS AND DEVICES FOR PROSTHETIC RECONSTRUCTION FOR THE RESTORATION OR MODIFICATION OF A NATURAL NAIL | |
WO2001054822A2 (en) | Hygienic shower nozzle with removable sprayer | |
FR2549376A1 (en) | METHOD AND APPARATUS FOR TREATING BY RINSING WOUNDS OR DIFFICULT ACCESS AREAS | |
FR2816202A1 (en) | Positioning implement for colostomy bags has tube fitting around stoma opening and connected to emission collector | |
WO1999013774A1 (en) | Electronic stethoscope | |
BE853876A (en) | DISASSEMBLY SET FOR COLOSTOMY, AND GLUED AND WELDED ARTICLES FOR THIS USE |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 98807533.4 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM HR HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
ENP | Entry into the national phase |
Ref document number: 2298485 Country of ref document: CA Ref document number: 2298485 Country of ref document: CA Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09463307 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1998940303 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1998940303 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1998940303 Country of ref document: EP |