WO2000010627A1 - Aspirateur de liquide de l'oreille moyenne - Google Patents

Aspirateur de liquide de l'oreille moyenne Download PDF

Info

Publication number
WO2000010627A1
WO2000010627A1 PCT/US1999/019602 US9919602W WO0010627A1 WO 2000010627 A1 WO2000010627 A1 WO 2000010627A1 US 9919602 W US9919602 W US 9919602W WO 0010627 A1 WO0010627 A1 WO 0010627A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle
aspirator
sheath
recited
compartment
Prior art date
Application number
PCT/US1999/019602
Other languages
English (en)
Inventor
Frank C. Hill
Original Assignee
Hill Frank C
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US09/207,695 external-priority patent/US6024726A/en
Priority claimed from US09/298,027 external-priority patent/US6258067B1/en
Application filed by Hill Frank C filed Critical Hill Frank C
Priority to AU56950/99A priority Critical patent/AU5695099A/en
Publication of WO2000010627A1 publication Critical patent/WO2000010627A1/fr

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
    • A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/64—Containers with integrated suction means
    • A61M1/67—Containers incorporating a piston-type member to create suction, e.g. syringes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/80—Suction pumps
    • A61M1/81—Piston pumps, e.g. syringes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/06—Head
    • A61M2210/0662—Ears
    • A61M2210/0668—Middle ear

Definitions

  • the present invention relates to aspirators, and, in particular, to aspirators for removing fluid from the middle ear.
  • Infections of the middle ear present an ongoing problem to both patients who suffer from them as well as to treating physicians who seek to treat them. To the patient, these infections represent acute pain, discomfort, financial cost and/or possible loss of hearing. To the treating physician, these infections present significant dilemmas. Since middle ear infections have been heretofore difficult to treat with medications, the treating physician had basically two therapeutic alternatives.
  • the primary care physician may either tap the middle ear or refer the patient to an ear, nose and throat specialist so that a tympanocentesis or insertion of tubes may be employed.
  • the physician has utilized suction or conventional syringes which have several attendant disadvantages.
  • Suction assemblies are often not available and are cumbersome to use.
  • Conventional syringes have required the physician to actuate the syringe by pulling back on the plunger. Further, if the needle of the syringe is straight, as is usually the case, then the syringe interferes with the operator's line of vision.
  • a common danger with pre-existing syringe needles is that there is no guard against the operator accidentally penetrating the tympanic membrane in such a way as to cause damage to the bony structures there within.
  • a present invention is a middle ear fluid aspirator comprising a syringe assembly and needle.
  • the syringe assembly operates via negative pressure in order to provide suction through the needle when the syringe handle is pushed.
  • the needle has an angled or curved region, which permits the operator to use the aspirator while having visual contact with the tympanic membrane.
  • the needle has a fibrillar sheath that shields the sharp tip of the needle to prevent injury while entering the ear canal and retracts upon contact with the tympanic membrane.
  • the sheath may also act as a carrier for anesthetic.
  • a stop is also positioned on the needle to restrict movement of the sheath, thereby helping to limit penetration of the needle.
  • the tip of the needle preferably has a shallow bevel to prevent lateral contact with the medial wall of the middle ear.
  • the needle has thin walls that deform when it contacts bone.
  • a syringe assembly that is actuated by pushing on the handle is a major advantage of present invention.
  • the aspirator With a physician being able to push the syringe handle rather than pull, the aspirator can be operated with a single hand with greater control with a single hand since the muscles that control the hand can squeeze the thumb toward the rest of the hand more easily than pull it away from the hand.
  • An important advantage of the present invention is ability to have a clear line of sight with the tympanic membrane.
  • the needle has a curved portion so that the syringe handle does not obstruct the view of the tip of the syringe.
  • the amount of suction delivered to the needle tip is proportional with the rate at which the plunger is pressed.
  • a major feature of the present invention is the sheath that shields the needle tip until contact with the tympanic membrane.
  • the sheath creates a safety advantage by preventing injury to the ear canal when introducing the needle into the ear.
  • a secondary feature of the sheath is its use as a carrier for anesthetic, or other fluid to be applied to the tympanic membrane. As a result of the carrier function, the fluid can be applied to the tympanic membrane in one step, without the need to introduce another instrument into the ear.
  • the sheath acts as a seal around the puncture site while permitting the withdrawal of fluid through the needle to prevent aspiration of air from the ear canal instead of fluid from the middle ear.
  • An important feature of the present invention is a stop that acts in conjunction with the sheath to limit penetration of the needle. As a result, the physician can be assured that the needle will be prevented from penetrating too far and damaging middle ear structures.
  • the shallow bevel of the needle tip is another feature of the present invention. Since the middle ear is a shallow structure, the shallow bevel allows sufficient penetration of the needle to allow aspiration of fluid while preventing aspiration of air from the ear canal.
  • FIG. 1 is a perspective view of the middle ear fluid aspirator inserted through the tympanic membrane of a patient, according to a preferred embodiment of the present invention
  • FIG. 2 is an exploded cross-sectional view middle ear fluid aspirator, according to a preferred embodiment of the present invention
  • FIG. 3 is a cross-sectional view of the syringe assembly of the middle ear aspirator of the present invention along the 3-3 line of Fig. 2, according to a preferred embodiment of the present invention
  • FIG. 4 is a cross-sectional view of the needle carrying a sheath along line 4-4 of Fig. 5A, according to a preferred embodiment of the present invention
  • FIG. 5 A is a cross-sectional view of the needle carrying a sheath prior to penetration of the tympanic membrane, according to a preferred embodiment of the present invention.
  • FIG. 5B is a cross-sectional view of the needle carrying a sheath upon penetration of the tympanic membrane, according to a preferred embodiment of the present invention.
  • the syringe assembly of the present invention is identified by the numeral 1 and is shown in place within the ear canal 47 of a patient.
  • the tip 43 of the syringe needle 42 is shown penetrating the tympanic membrane 50 so that fluid accumulated within the middle ear may be extracted by use of syringe 1.
  • Needle 42 draws fluid from the middle ear into a second compartment 30 of housing 10 when tip 43 penetrates tympanic membrane 50 and a handle 28 is pressed with the user's thumb, driving shaft 26 into housing 10.
  • syringe assembly 1 is comprised of a housing 10, a partition 14, dividing the housing 10 into a first compartment 18 and a second compartment 30, an opening 16 allowing first compartment 18 to communicate with second compartment 30, a piston 24, disposed in first compartment 18 and attached to shaft 26, a first end wall 48 having a port 49 that is disposed at the end of first compartment 18, a seal means 22, a slide stop 20, and a needle hub 32 carried on second compartment 30.
  • the housing 10 generally cylindrical in shape and may be made of any suitable, and preferably translucent, material such as glass, plastic, or the like. Housing 10 is divided into a first compartment 18 and second compartment 30 by partition 14. First end wall 48 has a port 49 for the egress of air when handle 28 is pressed, and a second end wall 31 and seal means 22 which may be a natural or synthetic rubber or plastic ring. First compartment 18 is connected to second compartment 30 by opening 16. Disposed within first compartment 18 is piston 24 which is attached to shaft 26. Shaft 26 extends through seal means 22 and through aperture 27 and is attached to handle 28. As the operator applies pressure to handle 28, shaft 26 forces piston 24 to move from an initial position adjacent to and in contact with slide stop 20 towards end wall 48.
  • Piston 24 and seal means 22 are made of any suitable material which is inert to the aspirated fluid and provides a sufficiently airtight seal with the walls of first compartment 18 and slidable seal with shaft 26 such that piston 24 can be moved in and out of housing 10 and create sufficient negative pressure inside first compartment 18 to aspirate fluid into second compartment 30.
  • Needle hub 32 provides a location for frictionally fitting needle anchoring means 34 such that needle 42 may be attached to syringe assembly 1 at needle hub 32 in an airtight fashion in which the lumen 54 of needle 42 is in fluid communication with second compartment 30 for flow of fluids from lumen 54 through aperture 27 into second compartment 30.
  • Needle 42 is provided with angled or curved region 38 allowing insertion of needle 42 into ear canal 49 of a patient while allowing the user visual access to the tympanic membrane 50 while sighting along needle 42 towards its tip 43 while holding handle 28 to the side where it is not in the line of sight.
  • Angled region 38 is bent to a suitable degree for use with an otoscope, and may range from about 60° to about 30 ° , preferably about 45 ° .
  • FIG. 3 a cross-sectional view of syringe assembly 1 along axis 3 wherein first compartment 18 is shown in relationship to second compartment 30 within housing 10.
  • first compartment 18 slide stop 20 can be seen.
  • shaft 26 Extending therethrough is shaft 26 which is anchored to piston 24.
  • needle 36 has a shallow bevel 51, which prevents aspiration of air from ear canal 47 but allows easy penetration of the tympanic membrane for aspiration of fluid from the middle ear.
  • the bevel angle represented by ⁇ , is more than a few degrees and preferably approximately 45°.
  • the needle tip 43 has a second bevel, a counter-bevel portion 52, which provides a sharp tip 43 to enable easy penetration of the tympanic membrane 50.
  • a counter-bevel portion 52 Preferably only the needle tip 43 has a counter-bevel portion 52, rather than the entire bevel 51.
  • the counter-bevel portion 52 allows for initial penetration, but the remaining bevel 51 acts to stretch the tympanic membrane 50, rather than cut tissues.
  • Needle tip 43 carries a sheath 68 primarily to prevent injury to the ear canal 47 when the needle 42 is introduced into the ear.
  • Sheath 68 is preferably made from a fibrillar or foamy material, such as that sold under the trademarks Gel Foam or Dacron, would be suitable material for sheath 68.
  • Sheath 68 shields ear canal from injury during introduction into ear as seen in Fig. 5 A; however, upon sheath 68 contact with tympanic membrane 50, sheath 68 moves axially from a first, needle tip-covering position to a second, needle tip exposing position to allow penetration as seen in Fig. 5B.
  • Stop 70 which defines the second position, restricts axial movement of sheath 68 and thereby helps to prevent excessive penetration of tip 43, as illustrated in Fig. 5B. Stop 70 is positioned along needle 42 to allow retraction of sheath 68 while limiting penetration of needle 42.
  • a secondary function of sheath 68 is a use as a carrier for delivering a material to the tympanic membrane 50, such as an anesthetic and/or antiseptic solution (not shown).
  • needle 42 is inserted into ear canal 47 with sheath 68 carried on it to shield needle tip 43 to prevent injury to the ear canal 47.
  • sheath 68 contact with the tympanic membrane 50, sheath 68 slides axially by pressure of the tympanic membrane to stop 70, to allow exposure and penetration of needle tip 43 into tympanic membrane 50.
  • the physician or user pushes handle 28 toward needle 42 to aspirate fluid from the middle ear.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Biophysics (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Psychology (AREA)
  • Otolaryngology (AREA)
  • External Artificial Organs (AREA)

Abstract

Un aspirateur de liquide de l'oreille moyenne comprend un ensemble seringue (1) permettant la succion par création d'une pression négative, et une aiguille (42) comprenant une zone inclinée (38) qui permet la manipulation de l'aspirateur tout en gardant un contact visuel avec la membrane tympanique (50), ainsi qu'une gaine (68) qui protège le bout de l'aiguille (43) de façon à prévenir les altérations des structures ossiculaires de l'oreille.
PCT/US1999/019602 1998-08-25 1999-08-25 Aspirateur de liquide de l'oreille moyenne WO2000010627A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU56950/99A AU5695099A (en) 1998-08-25 1999-08-25 Middle ear fluid aspirator

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US9929998P 1998-08-25 1998-08-25
US60/099,299 1998-08-25
US09/207,695 1998-12-08
US09/207,695 US6024726A (en) 1998-08-25 1998-12-08 Middle ear fluid aspirator
US09/298,027 US6258067B1 (en) 1998-12-08 1999-04-22 Middle ear fluid aspirator
US09/298,027 1999-04-22

Publications (1)

Publication Number Publication Date
WO2000010627A1 true WO2000010627A1 (fr) 2000-03-02

Family

ID=27378800

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/019602 WO2000010627A1 (fr) 1998-08-25 1999-08-25 Aspirateur de liquide de l'oreille moyenne

Country Status (2)

Country Link
AU (1) AU5695099A (fr)
WO (1) WO2000010627A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8968243B2 (en) 2009-10-15 2015-03-03 Entratympanic, Llc Device and method for delivering medicine into the tympanic cavity,with sliding assist
US9039639B2 (en) 2013-06-28 2015-05-26 Gbs Ventures Llc External ear canal pressure regulation system
CN105455948A (zh) * 2016-01-23 2016-04-06 王翠兰 鼓膜穿刺、鼓室内注射医疗设备
US10251790B2 (en) 2013-06-28 2019-04-09 Nocira, Llc Method for external ear canal pressure regulation to alleviate disorder symptoms
CN110236788A (zh) * 2019-06-27 2019-09-17 郑州市中心医院 一种可收集废液的耳道冲洗装置
CN110236789A (zh) * 2019-06-27 2019-09-17 郑州市中心医院 一种防溢流耳道冲洗装置
US10760566B2 (en) 2016-07-22 2020-09-01 Nocira, Llc Magnetically driven pressure generator
CN112654336A (zh) * 2018-07-13 2021-04-13 伊尔布雷兹有限责任公司 用于产生到外耳道中的空气流的装置的管头
WO2021242926A1 (fr) * 2020-05-27 2021-12-02 Akouos, Inc. Dispositifs, systèmes et procédés d'administration de fluide dans l'oreille interne
US11246793B2 (en) 2017-02-27 2022-02-15 Nocira, Llc Ear pumps
US12016816B2 (en) 2022-02-11 2024-06-25 Nocira, Llc Ear pumps

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3055361A (en) * 1960-04-22 1962-09-25 Deseret Pharmaceutical Company Intravenous catheters
US5032111A (en) * 1987-09-22 1991-07-16 Vitreoretinal Development, Inc. Method and apparatus for ocular perfusion
US5792099A (en) * 1995-02-14 1998-08-11 Decamp; Dennis Syringe and cannula for insertion of viscoelastic material into an eye and method of using same
US5865814A (en) * 1995-06-07 1999-02-02 Medtronic, Inc. Blood contacting medical device and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3055361A (en) * 1960-04-22 1962-09-25 Deseret Pharmaceutical Company Intravenous catheters
US5032111A (en) * 1987-09-22 1991-07-16 Vitreoretinal Development, Inc. Method and apparatus for ocular perfusion
US5792099A (en) * 1995-02-14 1998-08-11 Decamp; Dennis Syringe and cannula for insertion of viscoelastic material into an eye and method of using same
US5865814A (en) * 1995-06-07 1999-02-02 Medtronic, Inc. Blood contacting medical device and method

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8968243B2 (en) 2009-10-15 2015-03-03 Entratympanic, Llc Device and method for delivering medicine into the tympanic cavity,with sliding assist
US9814624B2 (en) 2010-03-15 2017-11-14 Entratympanic, Llc Device and method for delivering medicine into the tympanic cavity, with sliding assist
US10772766B2 (en) 2013-06-28 2020-09-15 Nocira, Llc Method for external ear canal pressure regulation to alleviate disorder symptoms
US9039639B2 (en) 2013-06-28 2015-05-26 Gbs Ventures Llc External ear canal pressure regulation system
US9186277B2 (en) 2013-06-28 2015-11-17 Gbs Ventures Llc External ear canal pressure regulation system
US10076464B2 (en) 2013-06-28 2018-09-18 Nocira, Llc External ear canal pressure regulation system
US10251790B2 (en) 2013-06-28 2019-04-09 Nocira, Llc Method for external ear canal pressure regulation to alleviate disorder symptoms
US10278868B2 (en) 2013-06-28 2019-05-07 Nocira, Llc External ear canal pressure regulation system
US11096828B2 (en) 2013-06-28 2021-08-24 Nocira, Llc System for alleviating symptoms of a neurological disorder
US11090194B2 (en) 2013-06-28 2021-08-17 Nocira, Llc External ear canal pressure regulation device
CN105455948A (zh) * 2016-01-23 2016-04-06 王翠兰 鼓膜穿刺、鼓室内注射医疗设备
US10760566B2 (en) 2016-07-22 2020-09-01 Nocira, Llc Magnetically driven pressure generator
US11859606B2 (en) 2016-07-22 2024-01-02 Nocira, Llc Magnetically driven pressure generator
US11246793B2 (en) 2017-02-27 2022-02-15 Nocira, Llc Ear pumps
CN112654336A (zh) * 2018-07-13 2021-04-13 伊尔布雷兹有限责任公司 用于产生到外耳道中的空气流的装置的管头
US11278659B2 (en) 2018-07-13 2022-03-22 Earbreeze Gmbh Attachment for a device for generating an airflow
US11413390B2 (en) 2018-07-13 2022-08-16 Earbreeze Gmbh Attachment for a device for generating an air flow or dispensing a fluid into the external auditory canal
CN110236789A (zh) * 2019-06-27 2019-09-17 郑州市中心医院 一种防溢流耳道冲洗装置
CN110236788A (zh) * 2019-06-27 2019-09-17 郑州市中心医院 一种可收集废液的耳道冲洗装置
WO2021242926A1 (fr) * 2020-05-27 2021-12-02 Akouos, Inc. Dispositifs, systèmes et procédés d'administration de fluide dans l'oreille interne
US12016816B2 (en) 2022-02-11 2024-06-25 Nocira, Llc Ear pumps

Also Published As

Publication number Publication date
AU5695099A (en) 2000-03-14

Similar Documents

Publication Publication Date Title
US6258067B1 (en) Middle ear fluid aspirator
US6024726A (en) Middle ear fluid aspirator
US5169387A (en) Method and apparatus for catheterization of a body cavity
US7736336B2 (en) Paracentesis device having multiple detachable components
US5078688A (en) Paracentesis catheter system
US8574240B2 (en) Stabilization system and aspiration device with protected cutting edge
US5817073A (en) Apparatus for administering local anesthetics and therapeutic medications during endoscopic surgery
US5665094A (en) Apparatus for aspirating and collecting middle ear specimens
EP3545883A1 (fr) Système de trocart de première entrée
JPH11510402A (ja) 突き刺さり防止型注射器及び関連する方法
EP0232600B1 (fr) Dispositif destiné à drainer les fluides dans une cavité corporelle
MXPA03010227A (es) Aguja combinada y dispositivo dilatador para la cateterizacion arterial y de la vena central.
US11944793B2 (en) Syringe
JP2008168136A (ja) カニューレ
WO2000010627A1 (fr) Aspirateur de liquide de l'oreille moyenne
US5447493A (en) Tumescent lipoplastic apparatus
NL2025530B1 (en) Fluid injection device
US20050113759A1 (en) Catheter retainer
US10537361B2 (en) Access device having a fluid pathway and methods of using the same
US7621278B2 (en) Eye drape for surgical procedures
EP2709685B1 (fr) Appareil de retrait et de distribution de fluide
CN118076404A (zh) 用于腹膜导管放置的装置
US6132406A (en) Hysterosonagram/hysterosalpingoram cannula with soft seal
GB2524580A (en) Pneumothorax device
WO2005063321A2 (fr) Instrument medical d'acces a un canal galactophore pour la realisation d'une intervention medicale et methodes associees

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN 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 ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SL 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

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase