CA1268092A - Device for obtaining a smear sample from a body cavity - Google Patents

Device for obtaining a smear sample from a body cavity

Info

Publication number
CA1268092A
CA1268092A CA000526463A CA526463A CA1268092A CA 1268092 A CA1268092 A CA 1268092A CA 000526463 A CA000526463 A CA 000526463A CA 526463 A CA526463 A CA 526463A CA 1268092 A CA1268092 A CA 1268092A
Authority
CA
Canada
Prior art keywords
bristles
stem
carrier
longitudinal
bris
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.)
Expired - Lifetime
Application number
CA000526463A
Other languages
French (fr)
Inventor
Joost Kist
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Futura Nova BV
Original Assignee
Futura Nova BV
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
Application filed by Futura Nova BV filed Critical Futura Nova BV
Application granted granted Critical
Publication of CA1268092A publication Critical patent/CA1268092A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02Instruments for taking cell samples or for biopsy
    • A61B10/0291Instruments for taking cell samples or for biopsy for uterus
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02Instruments for taking cell samples or for biopsy
    • A61B2010/0216Sampling brushes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • A61B2017/320004Surgical cutting instruments abrasive
    • A61B2017/320008Scrapers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • A61B2017/320004Surgical cutting instruments abrasive
    • A61B2017/320012Brushes

Abstract

A B S T R A C T

In a device for obtaining a smear sample from a body cavity in particular the uterus mouth or cervix a plurality of substantially parallel flexible bristles is connected to a carrier provided at one end of a stem In order to ensure that cells from all the portions of the body cavity are sampled the bristles extend substantially parallel to the stem and the bristles each have at least one longitudinal sharp edge . The said sharp edge is adapted to scrape cells from the body cavity when the device is rotated about the stem axis.

Description

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The invention relates to a device for obtaining a smear from a bod~ cavity, in particular the uterus mouth or cervix, comprising a plurality of substantially parallel flexible bristles connected to a carrier provided at one end of a stem.

Such a device is known from the U.S. patent 4,127,113.
Herein the carrier extends parallel to the stem and th~ bristles are directed substantially perpendicular to the stem. The carrier, when obtaining a smear sample, is placed with the bristles in the cervical canal and is rotated, whereby the ends of the bristles scrape the wall of the cervical canal. When the u carrier is fully inserted in the cervical canal, an edge of a flattened blade at the end of the stem scrapes along the mouth of the cervix to remove cells therefrom.

In the pap smear test it is important for a proper diagnosis, that both squamo epithelial cells of the portio and cylindrical epithelial cells of the endocervical canal are present in the specimen to be examined ( a so-called representative smear sample). This ensures, that the area of junction between ecto- and endocervix, i.e. the squamo-columnar ~U junction, where the cervical carninoma and its early stages preferably develop, has been sampled in the cell collection, whereby a greater chance e~ist that the carcinoma or its early stages are discovered in time.
2~ However, the known devlce has the disadva~tage, that although cells from the cervical canal are removed in a reliable manner, cells from the ~unction area or the squamo area may be missed. This can for instance occur, when it is not possible to place the whole carrier with its br~stles in the cervlcal canal, whereby the edge of the flattened blade does not scrape along the mouth of the cervix and no cells are removed from that place. In thls way it is not possible to obtain a reliable illustration of the condition of the cervix.

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A further disadvantage of the known device is, that when the cellular material removed from the cervix is delivered to the microscopic slide, the edge of the flattened blade serves as guide and the cellular material collected thereon does not arrive onto the slide.

The present invention provides a device for obtaining a smear sample from a body cavity, in particular the cervix wherein the above mentioned disadvantages are removed in an effective way.

The device according to the invention is characterized in that the bristles extend substantially parallel to the stem and the bristles each have at least one longitudinal sharp edge, with which it is enabled to scrape cells from the body cavity when rotating the device about the stem axis.
1~;
By means of this device it is possible to obtain a representative smear sample at all times, because some of the bristles, for instance those in the area of the extension of the stem are able to penetrate into the cervical canal and to scrape 2U cells from the wall thereof, while the remaining bristles are able to scrape over a large area along the cervix.

In a favourable embodiment of the device according to the irlvention the free ends of the bristles in the area of the 2~ extension of the stem of the device protrude beyond those of the bristles disposed outwardly of this area~

Conse~uently the bristles in the area of the extension of the stem are adapted to penetrate even deeper into the 3U cervical canal.
~ urthermore, it is advantageously, when the bristles disposed in the area of the exte~sion of the stem of t,he device are larger in cross section than the remaining bristles.
3~

In this way it is simplified to insert the bristles in the area of the extension of the stem into the cervical canal, and said bristles are able to serve as an axis of rotatlon for the device.

A preferred embodimen-t of the devlce according to the invention is characterized in that the carrier at the side facing the bristles has a curved configuration which is :I.u 1~;

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adapted to the shape of the mouth of the body cavity.
In this way a removal of cells in a large area of the mouth of the cervi~ and the cervical canal is obtained, and tlle bristles in the area of the extension of the stem of 5 the device are properly supported.
In a favourable embodiment of the device according to the invention the carrier has an elastic construction.
This promotes that the outer bristles are spread out, whereby it is made possible for the bristles to cover a 10 large area of the mouth of the cervix.
An advantageous embodiment of the device according to the invention is characterized in that the bristles are substantially half round in transverse section.
Consequently a bristle having a sharp edge is 15 obtained in a very simple way, which enables the cellular material to be collected onto the non-curved portion of each hair when the smear sample is obtained.
In one embodiment of the device the carrier with the bristles is substantially symmetrical with respect to a 20 longitudinal plane extending through the stem axis.
In an alternative embodiment the carrier at one side of a longitudinal plane extending through the stem axis terminates shorter than at the other side.
This embodiment is in particular advantageously 25 when the device is used with very small vaginas, as the transverse size of the device is minimi~ed so that the access to the cervical canal is easier.
The invention will hereafter be elucidated with reference to the drawing, which shows an embodiment of the 30 device for obtaining a smear sample according to the invention by way of example.
Fig. 1 schematically illustrates the use of a device for obtaining a smear sample according to the invention.
Fig. 2 shows a part of the device of fig. 1, on an enlarged scale.
Fig. 3 is an upper view Or the device of fig. 2.
The drawing shows an embodimerlt of a device for ~.~

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obtaining a smear sample from a body cavity, in particular the uterus mouth or cervix 9. This device comprises a stem 1 having a circular transverse section, one end thereof being provided with a carrier 2, which carries a plurality of 5 bristles 3 extending parallel to the stem 1, so that there is formed a brush. The bristles 3 will be described in detail furtheron.
The bristles 3 distributed over the sur~ace of the carrier 2 have a half round transverse section with a flat 10 side 4 and a round portion 5, as can be clearly seen in fig.
3. As a result of this configuration of the bristles 3 a sharp edge 6 is obtained at the junction between the flat side 4 and the round portion 5 of each hair 3. By this measure the sharp edges 6 at the side of the hairs 3 facing lS away from the line of extension of the stem of the device exert a scraping action onto the cellular wall of the cervix, when the device is rotated about the stem 1, so that cells will collect on the flat sides 4 of the bristles 3.
At one side of a longitudinal plane 7 extending 20 through the stem 1 the flat sides 4 of the bristles 3 are directed to one long side of the carrier 2, and at the other side of this longitudinal plane 7 the flat sides 4 face the opposite long side of the carrier 2.
As a result cells will be scraped from the cellular 25 wall only when the device is rotated about the stem 1 in the direction of the arrow A.
Of course it is possible to use hairs having other transverse sections, like rectangular or lenticular configurations.
The carrier 2 has a narrow construction when viewed in the longitudinal direction of the device, so that the sight onto the cervical canal is not hindered by the carrier 2 when the device is inserted into the cervical canal.
Furthermore, the surface of the carrier 2 onto which the 35 bristles 3 are provided has a curved configuration running the length thereof, the top of the curve being located in the transverse centre of the device and being adapted to the sectional configuration of the mouth of Lhe cervix 9. T}le ~- ,-, :: : .. ,: ,, , :

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ends of the bristles 3 follow substantially the same curve as the carrier 2, The device comprises three types of bristles 3, that is the bristles 3' located outwardly of the transverse centre of the carrier 2, the bristles 3" provided in the longitudinal plane 7 in the centre of the carrier 2 and the bristles 3"' at both sides of the row of bristles 3". The bristles 3" and 3"' are somewhat longer than the bristles 3', so that they project forwardl!!.
The projecting bristles 3" and 3"' located in the area of the transverse centre of the device fit into the cervical canal, in this way forming an axis of rotation for the device. In order to further increase this efect, the centre bristles 3" have a larger cross-section than the 15 bristles 3', while the size of the cross-section of the bristles 3..t lies between that of the bristles 3' and 3".
Consequently the bristles 3" and 3"' will penetrate deep into the cervical canal in an easier way (see fig. 1). The top of the carrier 2 projecting in the centre thereby renders a 20 proper support for the bristles 3" and 3"'.
The carrier 2 is slightly elastic, so that in use both free ends thereof bend slightly inwardly, wherein the roots of the bristles 3' in the neighbo~orhoud of the ends of the carrier 2 are directed outwardly. This promotes the 25 spreading out of the bristles 3 over a large area of the mouth of the cervix 9 (see fig. 1).
Fig. 1 schematically illustrates that the device is introduced into a vagina 8 and is disposed onto and partially into the mouth of the cervix 9. The bristles 3" and 3"' of 30 the device penetrate into the cervical canal 10, while the remaining bristles 3' spread out over the surface of the mouth of the cervix. Because the bristles 3' located outwardly of the transverse centre bend as a consequence of the pressure exerted by the device onto the cervix in the 35 longitudinal direction of the device, the centre bristles 3"
and 3"' penetrate even deeper into the cervical canal 10.
When the device is introduced to the right place it is rotated for one or more revolutions about the stem axis in ~268(~Z

the scraping direction (arrow A), during which cellular material is collected on the flat sides 4 of the bristles 3', 3" and 3"', whereafter the device can be removed from the vagina 8.
After a smear sample has been taken from the cervix, the device is wiped two times, one time with each flat side, across a microscopic slide, whereby a convenient delivery of cellular material to the slide occurs as a result of the parallel position of the bristles 3.
The invention is not restricted to the embodiment shown in the drawing by way of example, which can be varied in different ways within the scope of the invention.
It is for instance possible to construct the carrier 2 such that the carrier is longer at one side of the 15 stem 1 than at the other side of the stem. The short side of the carrier 2 may terminate after the row of bristles 3"'.
This embodiment is in particular advantageously for use in very small vaginas.

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Claims (13)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A device for obtaining a smear sample from a body cavity, in particular the uterus mouth or cervix, comprising an elongated stem; a carrier at one end of the stem; a plurality of bristles projecting from the carrier and extending substantially parallel to the stem, the bristles each having at least one lon-gitudinal sharp edge, adapted to scrape cells from the body cav-ity when the device is rotated about the stem axis.
2. A device as claimed in claim 1, wherein free ends of the bristles in the area remote from the carrier adjacent the longitudinal axis of the stem of the device protrude beyond.
3. A device as claimed in claim 1, wherein the bris-tles disposed in the area adjacent the longitudinal axis of the stem of the device have a larger cross-section than the remaining bristles.
4. A device as claimed in claim 1, wherein the carrier at the side facing the bristles has a curved configuration which is adapted to the shape of the mouth of the body cavity.
5. A device as claimed in claim 4, wherein the bris-tles disposed outwardly of the center have substantially the same length as each other.
6. A device as claimed in claim 1, wherein the carrier has an elastic construction.
7. A device as claimed in claim 1, wherein the carrier has a narrow configuration when viewed in longitudinal direction of the stem.
8. A device as claimed in claim 1, wherein the sharp edge of the bristles are directed such that the bristles are adapted to exert a scraping action in only one direction of rota-tion of the device.
9. A device as claimed in claim 7, wherein the bris-tles at one side of a longitudinal plane extending through the stem axis are rotated 180° about their longitudinal axis with respect to the bristles at the other side of the longitudinal plane.
10. A device as claimed in claim 1, wherein the bris-tles are substantially half round in transverse section.
11. A device as claimed in claim 1, wherein each bris-tle has one flat longitudinal side.
12. A device as claimed in claim 1, wherein the carrier with the bristles is substantially symmetrical with respect to a longitudinal plane extending through the stem axis.
13. A device as claimed in claim 1, wherein the carrier at one side of a longitudinal plane extending through the stem axis terminates shorter than at the other side.
CA000526463A 1985-12-31 1986-12-30 Device for obtaining a smear sample from a body cavity Expired - Lifetime CA1268092A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8503596A NL8503596A (en) 1985-12-31 1985-12-31 Apparatus for making a smear from a body cavity.
NL8503596 1985-12-31

Publications (1)

Publication Number Publication Date
CA1268092A true CA1268092A (en) 1990-04-24

Family

ID=19847078

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000526463A Expired - Lifetime CA1268092A (en) 1985-12-31 1986-12-30 Device for obtaining a smear sample from a body cavity

Country Status (8)

Country Link
US (1) US4700713A (en)
EP (1) EP0228752B1 (en)
AT (1) ATE57827T1 (en)
AU (1) AU588461B2 (en)
CA (1) CA1268092A (en)
DE (1) DE3675360D1 (en)
ES (1) ES2017927B3 (en)
NL (1) NL8503596A (en)

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GB2208603A (en) * 1987-07-03 1989-04-12 Richards Dr Peter William Cervical sampling device
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NL9000166A (en) * 1990-01-23 1991-08-16 Futurerole Ltd DEVICE FOR SIMULTANEOUS SAMPLING OF BOTH THE ENDOCERVIX AND THE EXOCERVIX, WHICH APPARATUS IS ONE PIECE AND EQUIPPED WITH A STEEL, OF WHICH A END BEARS A SCRAPER.
US5022408A (en) * 1990-04-23 1991-06-11 Mohajer Reza S Combination exo/endocervical sampler
US5191899A (en) * 1991-12-12 1993-03-09 Baal Associates, Inc. Pap smear collection device with bristles oriented in a plane
US5279307A (en) * 1992-10-19 1994-01-18 Mohajer Reza S Combination exo-endocervical sampler
AU5331794A (en) * 1992-10-23 1994-05-24 Lonsten Pty. Limited Endocervical probe for pap smear sampling head
US5253652A (en) * 1993-01-25 1993-10-19 Fast James I Cytologic sampling device for collecting cervical and vaginal cell specimens
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FR2724837B1 (en) * 1994-09-22 1997-04-25 Chaffringeon Bernard SINGLE-USE ASSEMBLY OF DETECTION AND ANALYSIS OF A BODY LIQUID
EP0782703B1 (en) * 1994-09-22 1999-06-23 Bernard Chaffringeon Single-use device for detecting or analyzing a body fluid
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EP1235518A1 (en) 1999-06-25 2002-09-04 Ampersand Medical Corporation Personal cervical cell collector
DE60041670D1 (en) 1999-12-03 2009-04-09 Univ Leeds Restoration of damaged tissue
US20060024725A1 (en) 2004-07-30 2006-02-02 Robert Hussa Oncofetal fibronectin as a marker for pregnancy-related indications
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US8439847B2 (en) * 2006-06-01 2013-05-14 Daniel Larkin Method and apparatus for simultaneously collecting exocervical and endocervical samples
US8323211B2 (en) 2006-06-01 2012-12-04 Daniel Larkin Sexually transmitted infection sampling device
US7749173B2 (en) 2006-06-01 2010-07-06 Daniel Larkin Apparatus for simultaneously collecting exocervical and endocervical samples
KR20100105829A (en) 2007-07-17 2010-09-30 히스톨로직스 엘엘씨 Frictional trans-epithelial tissue disruption and collection apparatus and method of inducing and/or augmenting an immune response
US8795197B2 (en) * 2007-07-17 2014-08-05 Histologics, LLC Frictional trans-epithelial tissue disruption collection apparatus and method of inducing an immune response
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WO2011152705A1 (en) 2010-06-04 2011-12-08 Rovers Holding B.V. Device for taking a sample from a body cavity
EP2638396B1 (en) 2010-11-12 2017-03-01 incellDX, Inc. Methods and systems for predicting whether a subject has a cervical intraepithelial neoplasia (cin) lesion from a suspension sample of cervical cells
US8801628B2 (en) * 2011-12-29 2014-08-12 Express Scripts, Inc. Methods and systems for medical home testing
US10201332B1 (en) 2012-12-03 2019-02-12 Healoe Llc Device and method of orienting a biopsy device on epithelial tissue
JP6689206B2 (en) 2014-05-02 2020-04-28 ユナイテッド ステイツ エンドスコピー グループ,インコーポレイテッド Endoscope cleaning device
GB201415653D0 (en) * 2014-09-04 2014-10-22 Univ Leeds Orthopaedic medical device
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Also Published As

Publication number Publication date
EP0228752B1 (en) 1990-10-31
DE3675360D1 (en) 1990-12-06
AU7339087A (en) 1988-12-08
ES2017927B3 (en) 1991-03-16
ATE57827T1 (en) 1990-11-15
EP0228752A1 (en) 1987-07-15
US4700713A (en) 1987-10-20
AU588461B2 (en) 1989-09-14
NL8503596A (en) 1987-07-16

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