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| United States Patent | 5372584 |
| Link to this page | http://www.wikipatents.com/5372584.html |
| Inventor(s) | Zink; John N. (Mountain View, CA);
Decaria; Chris (Sunnyvale, CA);
Kagan; Jonathan (Minneapolis, MN);
Schenken; Robert S. (San Antonio, TX);
Smelser; Ricci (Monticello, MN) |
| Abstract | An apparatus to establish access into the uterus and the fallopian tubes of
a female for diagnostic or therapeutic procedures includes a cervical
access catheter, an ostial access catheter insertable through the cervical
access catheter, and a fallopian access catheter insertable through the
ostial access catheter. The cervical access catheter incorporates a
distally located intrauterine balloon which is inflatable after insertion
into the uterus. The cervical access catheter also incorporates a cervical
retention disk which can be slid into position against the anterior lip of
the cervix to anchor the cervical access catheter into the cervical canal
between the intrauterine balloon and the cervical disk. Once the cervical
access catheter is properly anchored, the ostial access catheter is
inserted through the cervical access catheter. The ostial access catheter
has a guidable distal portion which, after the distal portion has passed
through the cervical access catheter, can be positioned into the ostium of
the fallopian tube. If desired, a contrast media can then be injected
through the ostial access catheter. Further, if additional information is
required, the fallopian access catheter can be inserted through the ostial
access catheter and advanced into the fallopian tube for injection of a
contrast media directly into the fallopian tube. |
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Title Information  |
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Drawing from US Patent 5372584 |
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Hysterosalpingography and selective salpingography |
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| Publication Date |
December 13, 1994 |
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| Filing Date |
June 24, 1993 |
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Title Information  |
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References  |
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| *references marked with an asterisk below are user-added references |
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U.S. References |
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| | Reference | Relevancy | Comments | Reference | Relevancy | Comments | 3421509
|      Your vote accepted [0 after 0 votes] | | 5259836 Thurmond 600/431 Nov,1993 |      Your vote accepted [0 after 0 votes] | | 5217466 Hasson 606/119 Jun,1993 |      Your vote accepted [0 after 0 votes] | | 5209754 Ahluwalia 600/207 May,1993 |      Your vote accepted [0 after 0 votes] | | 5205831 Ryan 604/533 Apr,1993 |      Your vote accepted [0 after 0 votes] | | 5195964 Kletzky 604/523 Mar,1993 |      Your vote accepted [0 after 0 votes] | | 5167623 Cianci
Dec,1992 |      Your vote accepted [0 after 0 votes] | | 5147315 Weber 604/164.09 Sep,1992 |      Your vote accepted [0 after 0 votes] | | 5108366 Schatz 604/515 Apr,1992 |      Your vote accepted [0 after 0 votes] | | 5104377 Levine
Apr,1992 |      Your vote accepted [0 after 0 votes] | | 4997419 Lakatos 604/523 Mar,1991 |      Your vote accepted [0 after 0 votes] | | 4655214 Linder 128/207.18 Apr,1987 |      Your vote accepted [0 after 0 votes] | | 4502482 DeLuccia, deceased 128/207.15 Mar,1985 |      Your vote accepted [0 after 0 votes] | | 4430076 Harris 604/103.03 Feb,1984 |      Your vote accepted [0 after 0 votes] | | 4325387 Helfer 600/561 Apr,1982 |      Your vote accepted [0 after 0 votes] | | 4195637 Gruntzig 604/509 Apr,1980 |      Your vote accepted [0 after 0 votes] | | 4160446 Barrington 128/831 Jul,1979 |      Your vote accepted [0 after 0 votes] | | 4089337 Kronner 604/103.03 May,1978 |      Your vote accepted [0 after 0 votes] | | 3968800 Vilasi 606/198 Jul,1976 |      Your vote accepted [0 after 0 votes] | | 3636940 Gravlee 600/563 Jan,1972 |      Your vote accepted [0 after 0 votes] | | |
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| Market Size |
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| Reasonable Royalty |
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Market Review  |
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Technical Review  |
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Claims  |
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We claim:
1. An apparatus for establishing access to the uterus and fallopian tube of
a female which comprises:
cervical access means for establishing a working channel through the cervix
into the uterus, said cervical access means being anchorable in the
cervical canal for establishing fluid tight extracorporeal access into the
uterus through said working channel;
ostial access means for establishing access into the ostium of a fallopian
tube, said ostial access means being selectively insertable through said
working channel of said cervical access means, said ostial access means
formed with a lumen and having a distal end with a distal end portion
adjacent said distal end, and having a proximal end with a proximal end
portion adjacent said proximal end, said ostial access means being
guidable to position said distal end thereof into the ostium of the
fallopian tube;
fallopian access means for establishing access into the fallopian tube,
said fallopian access means being selectively insertable through said
lumen of said ostial access means for advancement of said fallopian access
means into the fallopian tube; and
an O-ring mounted in said proximal portion of said ostial access means to
establish a fluid seal between said ostial access means and said fallopian
access means.
2. An apparatus as recited in claim 1 wherein said cervical access means is
an elongated cervical access catheter having a distal end with a distal
end portion adjacent thereto and having a proximal end with a proximal end
portion adjacent thereto, and wherein said working channel extends through
said cervical access catheter and wherein said cervical access catheter
further comprises:
an inflatable intrauterine balloon located on said distal end portion of
said cervical access catheter for passage through the cervical canal and
inflation in the uterus;
a cervical retention disk slidably mounted on said cervical access
catheter;
a fixation member attached to said cervical retention disk, said fixation
member being slidably mounted on said cervical access catheter to position
said disk against the anterior lip of the cervix while said inflatable
balloon is in the uterus; and
a locking mechanism mounted on said fixation member to selectively grip
said cervical access catheter for holding said fixation member in place on
said cervical access catheter.
3. An apparatus as recited in claim 2 wherein said cervical access catheter
further comprises:
an inflation lumen having a distal end and a proximal end, said distal end
of said inflation lumen being connected with said inflatable intrauterine
balloon for fluid communication therebetween;
a pilot balloon assembly connected in fluid communication with said
proximal end of said inflation lumen;
a check valve connected in fluid communication with said pilot balloon
assembly; and
an inflation syringe engageable with said check valve for simultaneously
inflating said intrauterine balloon and said pilot balloon.
4. An apparatus as recited in claim 2 wherein said cervical access catheter
includes a fluid seal mounted in said working channel in said proximal
portion of said cervical access catheter to establish a fluid barrier
between said cervical access catheter and said ostial access means and
wherein said ostial access means is an ostial access catheter insertable
through said working channel of said cervical access catheter to extend
said distal end portion of said ostial access catheter beyond said distal
end of said cervical access catheter, said distal end portion of said
ostial access catheter being guidable for placement of said distal end of
said ostial access catheter against the ostium of the fallopian tube.
5. An apparatus for establishing fluid communication with the uterus and
fallopian tube of a female which comprises:
an elongated cervical access catheter for accessinq the cervix, said
cervical access catheter being anchorable in the cervical canal for
establishing extracorporeal access into the uterus, said cervical access
catheter being formed with a working channel having a distal end with a
distal portion adjacent thereto and having a proximal end with a proximal
end portion adjacent thereto, said working channel extending through said
cervical access catheter;
a first sealing means for establishing a fluid tight seal for said cervical
access catheter, said first sealing means being mounted in said proximal
portion of said working channel of said cervical access catheter;
an inflatable intrauterine balloon located on said distal end portion of
said cervical access catheter for passage through the cervical canal and
inflation in the uterus;
a cervical disk slidably mounted on said cervical access catheter;
a fixation member formed with said cervical disk, said fixation member
being slidably mounted on said cervical access catheter to position said
disk against the anterior lip of the cervix while said inflatable balloon
is in the uterus;
a locking mechanism mounted on said fixation member to selectively grip
said cervical access catheter for holding said fixation member in place on
said cervical access catheter;
a first fluid source selectively engageable in fluid communication with
said working channel;
an ostial access catheter for establishing access to the ostium of a
fallopian tube, formed with a lumen, said ostial access catheter having a
distal end and a distal end portion adjacent said distal end thereof and a
proximal end and a proximal end portion adjacent said proximal end
thereof, said ostial access catheter being insertable through said first
sealing means into said working channel of said cervical access catheter
to extend said distal end portion of said ostial access catheter beyond
said distal portion of said cervical access catheter, said distal end
portion of said ostial access catheter being preformed for guidable
placement of said distal end of said ostial access catheter against the
ostium of the fallopian tube;
a second sealing means for establishing a fluid tight seal for said ostial
access catheter, said second sealing means being mounted in said proximal
portion of said lumen; and
a second fluid source selectively engageable in fluid communication with
said lumen of said ostial access catheter.
6. An apparatus as recited in claim 5 further comprising:
a fallopian access catheter for establishing access to the fallopian tubes,
formed with a lumen, having a distal end and a proximal end, said
fallopian access catheter being insertable through said second sealing
means into said lumen of said ostial access catheter to extend said distal
end of said fallopian access catheter beyond said distal end of said
ostial access catheter, through the ostium of the fallopian tube and into
the fallopian tube; and
a third fluid source selectively engageable in fluid communication with
said lumen of said fallopian access catheter.
7. An apparatus as recited in claim 6 wherein said cervical access catheter
further comprises:
an inflation lumen having a distal end and a proximal end, said distal end
of said inflation lumen being connected with said inflatable intrauterine
balloon for fluid communication therebetween;
a pilot balloon assembly connected in fluid communication with said
proximal end of said inflation lumen;
a check valve connected in fluid communication with said pilot balloon
assembly; and
an inflation syringe engageable with said check valve for simultaneously
inflating said intrauterine balloon and said pilot balloon.
8. An apparatus as recited in claim 7 wherein said first sealing means is a
Quad-ring mounted in said working channel in said proximal portion of said
cervical access catheter to establish a fluid seal between said cervical
access catheter and said ostial access catheter, and said second sealing
means is an O-ring mounted in said lumen in said proximal portion of said
ostial access catheter to establish a fluid seal between said ostial
access catheter and said fallopian access catheter.
9. A method for establishing fluid communication with the uterus and
fallopian tubes of a female using an apparatus including a fluid source,
an elongated cervical access catheter for establishing access to the
cervix, formed with a working channel, an inflatable intrauterine balloon
located distally on said cervical access catheter, a check valve connected
in fluid communication with said balloon, a fixation member formed with a
cervical retention disk and having a manipulable locking mechanism, said
fixation member being slidably mounted on said cervical access catheter;
an ostial access catheter for establishing access to the ostium of a
fallopian tube, formed with a first lumen, said ostial access catheter
being insertable through said working channel of said cervical access
catheter and said ostial access catheter having a guidable distal end
portion for placement of said distal end portion; a fallopian access
catheter for establishing access to the fallopian tubes, formed with a
second lumen, said fallopian access catheter being insertable through said
lumen of said ostial access catheter; a fluid tight seal in said cervical
access catheter working channel to establish a fluid barrier between said
cervical access catheter and said ostial access catheter; and a fluid
tight seal in said lumen of said ostial access catheter to establish a
fluid barrier between said ostial access catheter and said fallopian
access catheter; said method comprising the steps of:
inserting said intrauterine balloon through the cervical canal and into the
uterus;
inflating said intrauterine balloon;
positioning said retention disk of said fixation member against the
anterior lip of the cervix;
anchoring said cervical access catheter in the cervical canal by
manipulating said locking mechanism of said fixation member; and
selectively engaging said fluid source in fluid communication with one of
said working channel, said first lumen, or said second lumen, to inject
fluid into the uterus or the fallopian tube.
10. A method as recited in claim 9 further comprising the steps of:
inserting said ostial access catheter through said working channel of said
cervical access catheter;
Positioning said distal portion of said ostial access catheter against the
ostium of a fallopian tube; and
selectively engaging said fluid source in fluid communication with said
lumen of said ostial access catheter for injection of fluid into the
fallopian tube.
11. A method as recited in claim 10 further comprising the steps of:
inserting said fallopian access catheter through said lumen of said ostial
access catheter for advancing a portion of said fallopian access catheter
into the fallopian tube; and
connecting said source of contrast media with said lumen of said fallopian
access catheter for selective injection of fluid into the fallopian tube.
12. A method as recited in claim 9 wherein said apparatus includes a pilot
balloon assembly located proximally on said cervical access catheter with
an inflation lumen connecting said intrauterine balloon in fluid
communication with said pilot balloon, and said method further comprises
the steps of:
connecting an inflation syringe to said check valve for inflation of said
intrauterine balloon; and
observing inflation of said pilot balloon for a visual indication of
inflation of said intrauterine balloon.
13. An apparatus for establishing access to the uterus and fallopian tube
of a female which comprises:
an elongated cervical access catheter for establishing a working channel
through the cervix into the uterus, wherein said working channel extends
through said cervical access catheter, said cervical access catheter
having a distal end with a distal end portion adjacent thereto and having
a proximal end with a proximal end portion adjacent thereto, said cervical
access catheter being anchorable in the cervical canal for establishing
fluid tight extracorporeal access into the uterus through said working
channel;
an inflatable intrauterine balloon located on said distal end portion of
said cervical access catheter for passage through the cervical canal and
inflation in the uterus;
a cervical retention disk slidably mounted on said cervical access
catheter;
a fixation member attached to said cervical retention disk, said fixation
member being slidably mounted on said cervical access catheter to position
said disk against the anterior lip of the cervix while said inflatable
balloon is in the uterus;
a locking mechanism mounted on said fixation member to selectively grip
said cervical access catheter for holding said fixation member in place on
said cervical access catheter;
an ostial access catheter for establishing access into the ostium of a
fallopian tube, said ostial access catheter being selectively insertable
through said working channel of said cervical access catheter to extend
said distal end portion of said ostial access catheter beyond said distal
end of said cervical access catheter, said ostial access catheter formed
with a lumen and having a distal end with a distal end portion adjacent
said distal end, and having a proximal end with a proximal end portion
adjacent said proximal end, said ostial access catheter being guidable to
position said distal end thereof into the ostium of the fallopian tube;
a fluid seal mounted in said working channel in said proximal portion of
said cervical access catheter to establish a fluid barrier between said
cervical access catheter and said ostial access catheter;
fallopian access means for establishing access into the fallopian tube,
said fallopian access means being selectively insertable through said
lumen of said ostial access catheter for advancement of said fallopian
access means into the fallopian tube; and
an O-ring mounted in said lumen in said distal portion of said ostial
access catheter to establish a fluid seal between said ostial access
catheter and said fallopian access means.
14. An apparatus as recited in claim 13 wherein said fallopian access means
is a fallopian access catheter formed with a lumen having a distal end and
a proximal end, said fallopian access catheter being insertable through
said lumen of said ostial access catheter to extend said distal end of
said fallopian access catheter beyond said distal end of said ostial
access catheter, through the ostium of the fallopian tube and into the
fallopian tube.
15. An apparatus as recited in claim 14 further comprising a fluid source
selectively engageable with said working channel of said cervical assess
catheter for injecting fluids into the uterus.
16. An apparatus as recited in claim 14 further comprising a fluid source
selectively engageable with said lumen of said ostial access catheter for
injecting fluids into the fallopian tube.
17. An apparatus as recited in claim 14 further comprising a fluid source
selectively engageable with said lumen of said fallopian access catheter
for injecting fluids into the fallopian tube.
18. An apparatus as recited in claim 14 further comprising a fluid access
line attached to said cervical access catheter to establish fluid
communication with said working channel, said fluid access line being
joined in fluid communication with said working channel distally from said
fluid seal.
19. An apparatus for establishing fluid communication with the uterus and
fallopian tube of a female which comprises:
an elongated cervical access catheter for accessing the cervix, said
cervical access catheter being anchorable in the cervical canal for
establishing extracorporeal access into the uterus, said cervical access
catheter being formed with a working channel having a distal end with a
distal portion adjacent thereto and having a proximal end with a proximal
end portion adjacent thereto, said working channel extending through said
cervical access catheter;
an inflatable intrauterine balloon located on said distal end portion of
said cervical access catheter for passage through the cervical canal and
inflation in the uterus;
a cervical disk slidably mounted on said cervical access catheter;
a fixation member formed with said cervical disk, said fixation member
being slidably mounted on said cervical access catheter to position said
disk against the anterior lip of the cervix while said inflatable balloon
is in the uterus;
a locking mechanism mounted on said fixation member having manipulable
locking mechanism to selectively grip said cervical access catheter for
holding said fixation member in place on said cervical access catheter;
a first fluid source selectively engageable in fluid communication with
said working channel;
an ostial access catheter for establishing access to the ostium of a
fallopian tube, formed with a lumen, said ostial access catheter having a
distal end and a distal end portion adjacent said distal end thereof and a
proximal end and a proximal end portion adjacent said proximal end
thereof, said ostial access catheter being insertable through said first
sealing means into said working channel of said cervical access catheter
to extend said distal end portion of said ostial access catheter beyond
said distal portion of said cervical access catheter, said distal end
portion of said ostial access catheter being preformed for guidable
placement of said distal end of said ostial access catheter against the
ostium of the fallopian tube;
a second fluid source selectively engageable in fluid communication with
said lumen of said ostial access catheter;
a fallopian access catheter for establishing access to the fallopian tubes,
formed with a lumen, having a distal end and a proximal end, said
fallopian access catheter being insertable through said second sealing
means into said lumen of said ostial access catheter to extend said distal
end of said fallopian access catheter beyond said distal end of said
ostial access catheter, through the ostium of the fallopian tube and into
the fallopian tube;
a third fluid source selectively engageable in fluid communication with
said lumen of said fallopian access catheter;
an inflation lumen having a distal end and a proximal end, said distal end
of said inflation lumen being connected with said inflatable intrauterine
balloon for fluid communication therebetween;
a pilot balloon assembly connected in fluid communication with said
proximal end of said inflation lumen;
a check valve connected in fluid communication with said pilot balloon
assembly;
an inflation syringe engageable with said check valve for simultaneously
inflating said intrauterine balloon and said pilot balloon;
a fluid sealing means mounted in said working channel in said proximal
portion of said cervical access catheter to establish a fluid seal between
said cervical access catheter and said ostial access catheter; and
an O-ring mounted in said lumen in said proximal portion of said ostial
access catheter to establish a fluid seal between said ostial access
catheter and said fallopian access catheter. |
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Claims  |
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Description  |
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FIELD OF THE INVENTION
The present invention pertains generally to catheters and medical devices
which are useful for diagnostic and therapeutic procedures involving the
uterus and fallopian tubes of a female. More particularly, the present
invention pertains to a system of catheters which interact to precisely
establish an access path into the uterus and fallopian tubes for insertion
of medical instruments or for the injection of a contrast media or other
fluids. The present invention is particularly, but not exclusively, useful
for hysterosalpingography and selective salpingography procedures.
BACKGROUND OF THE INVENTION
Hysterosalpingography is a well known medical procedure which involves
recording images of anatomical structures of the uterus and fallopian
uterine tubes. More specifically, during the procedure, an opaque or
contrast media fluid is injected into the uterus and the fallopian tubes.
Hysterosalpingography is used quite extensively to examine the uterus and
fallopian tubes of a female for obstructions or anatomical abnormalities
which might impair and prevent insemination or fertilization. It is a
frequently performed procedure and to be effective it must, like other
medically probative procedures, provide a high degree of accuracy in the
resultant diagnosis.
There are, of course, other medical procedures wherein it is necessary to
establish access or fluid communication with the uterus or the fallopian
tubes. For instance, it is sometimes possible to inject fluid medicaments
into the uterus or fallopian tubes for therapeutic purposes. Further, the
insertion of instruments into the uterus or fallopian tubes may be
indicated for procedures such as a biopsy. In any case, there are numerous
procedures wherein it is desirable or necessary to establish access or
fluid communication with either the uterus or the fallopian tubes.
Devices and systems which are presently being used to gain access for
medical instruments into the uterus and fallopian tubes, or which are
being used for the injection of a fluid contrast media into the uterus and
fallopian tubes for a hysterosalpingography procedure, must pass through
the cervix. Most incorporate a catheter which must somehow be anchored to
the uterus to prevent dislodgment of the catheter during the procedure.
How this is done, of course, differs from device to device. Several
examples can be cited.
U.S. Pat. No. 5,104,377 which issued to Levine for an invention entitled
"Uterine Access Device with Automatic Cervical Adjustment" discloses a
device for accessing the uterus to either manipulate the uterus or to
introduce fluids or other devices into it. To hold the device in place
during its use, a distal balloon is inserted into the uterus and inflated
while, at the same time, a proximal balloon is partially inserted into the
cervical canal. The proximal balloon is then inflated, part of the
inflated balloon is in the cervical canal and part is proximal to the
exterior os of the cervix to capture the cervix between the inflated
balloons, and thereby anchor the catheter. This can, however, be quite
uncomfortable for the patient. Fluids can then be injected into the uterus
through the catheter.
U.S. Pat. No. 4,089,337 which issued to Kronner for an invention entitled
"Uterine Catheter and Manipulator with Inflatable Seal" discloses a
flexible catheter which is inserted into the uterus against the resistive
force of a spring biased disc. Once the catheter is positioned, a balloon
is inflated in the uterus. The catheter is then anchored between opposing
forces. One is the spring force of the spring biased disc, which tends to
withdraw the catheter from the uterus. The other force is generated by the
inflated balloon which resists the withdrawal. However, if the spring
force is too weak, the catheter may be able to move back and forth through
the cervical canal. This can cause trauma and can cause the distal tip of
the catheter to move uncontrollably in the uterus. On the other hand, if
the spring force is too strong, the cervix is pinched and there can be
unwanted discomfort for the patient.
U.S. Pat. No. 4,430,076 which issued to Harris for an invention entitled
"Combined Uterine Injector and Manipulative Device" discloses a
multi-lumen catheter having a balloon which is inflatable once it is
properly positioned in the uterus. A handle, which firmly engages the
catheter, is prepositioned on the catheter to limit its insertion into the
uterus. Depending upon the location where the handle is engaged with the
catheter, the catheter is somewhat free to move back and forth through the
cervical canal.
The examples of uterine catheters and injectors set forth above, all
pertain to references which disclose devices that provide direct access
only into the uterus. For hysterosalpingography this may be sufficient. On
the other hand, it may not be sufficient. For instance, it is known that
procedures which rely on the injection of a contrast media directly into
the uterus, to obtain information about the condition of the fallopian
tubes, result in approximately thirty to fifty (30-50%) false positive
diagnoses for tubal obstruction. The unfortunate consequence of using
systems and devices which provide direct access into only the uterus is;
if it is ever determined that direct access into the fallopian tube is
necessary, the system or device must be changed. Most often, this means
there is a need for a second operation.
It can also happen that an incomplete or ineffective diagnosis may lead to
unnecessary surgery. For example, the inability to determine the proper
condition of the fallopian tubes may require an exploratory laparoscopy.
Other examples can be given. Suffice it to say, any effective and
efficacious intrauterine procedure is preferable.
In light of the above, it is an object of the present invention to provide
a method and apparatus for establishing access or fluid communication with
the uterus and the fallopian tubes of a female for diagnostic or
therapeutic purposes which includes a cervical access catheter that can be
adjusted according to the particular patient's anatomy to firmly, but
gently, anchor the catheter across the cervical canal. It is another
object of the present invention to provide a method and apparatus for
establishing access or fluid communication with the uterus and the
fallopian tubes which provides direct access into the fallopian tube.
Still another object of the present invention is to provide a method and
apparatus for establishing access or fluid communication with the uterus
and the fallopian tubes which allows the flexibility of establishing
direct access into the fallopian tube whenever it has been determined that
access into only the uterus is ineffective | | |