CA1176929A - Urodynamic catheter - Google Patents
Urodynamic catheterInfo
- Publication number
- CA1176929A CA1176929A CA000407302A CA407302A CA1176929A CA 1176929 A CA1176929 A CA 1176929A CA 000407302 A CA000407302 A CA 000407302A CA 407302 A CA407302 A CA 407302A CA 1176929 A CA1176929 A CA 1176929A
- Authority
- CA
- Canada
- Prior art keywords
- tube
- distance
- catheter
- opening
- leading end
- 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
Links
Classifications
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M2025/004—Multi-lumen catheters with stationary elements characterized by lumina being arranged circumferentially
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Child & Adolescent Psychology (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
There is provided a urodynamic catheter which includes a tube having at least three lumens, each communicating with openings spaced at different distances from the closed leading end of the tube. In a further embodiment, an additional lumen is provided in the tube, communicating with the interior of a balloon which is attached to the tube and located between the second and third openings, measured away from the leading end.
There is provided a urodynamic catheter which includes a tube having at least three lumens, each communicating with openings spaced at different distances from the closed leading end of the tube. In a further embodiment, an additional lumen is provided in the tube, communicating with the interior of a balloon which is attached to the tube and located between the second and third openings, measured away from the leading end.
Description
` - -URODYNAMIC CATHETER
This invention relates generally to the medical field of Urodynamic studies, and has to do particularly with the construction of an improved urodynamic catheter adapted to conduct urodynamic tests on the lower urinary tract.
BACKGOUND OF THIS INVENTION
. _ Urodynamic tests are diagnostic procedures, the purpose of which is to assess the physiologic properties of the lower urinary tract, i.e. the bladder and urethra.
The urinary bladder and the urethra work together as a unit to serve the double purpose of collecting and conveying urine. The bladder is composed mostly of small muscles which are to a large degree under voluntary control. Muscle bundles run in different directions and from layer to layer.
The adaptation of the bladder to the changing urine volume is mainly due to the viscal-elastic property of the organ. The bladder wall, in a healthy individual, is able to expand without any significant increase in tension as the bladder fills with urine. One of the 25 major urodynamic tests involves filling the bladder with a saline solution, and simultaneously measuring the intravesical pressure. The plot of pressure against volume of contents during this filling is called a cystometrogram, and the early portion of this graphical 30 representation of pressure against volume is substantially flat in a healthy individual. When the -~ 2 1176~2~
individual is instructed to void, or when the urge to void arises automatically, the pressure inside the bladder increases.
Another standard urodynamic test is called the urethral pressure profile (UPP). This test is typically carried out by inserting a catheter having a side opening and a lumen communicating with that opening. A dilute saline solution is pumped into the lumen and out through the side opening at a fixed rate, while the catheter is steadily withdrawn from the urethra at a substantially constant speed. A plot of the back pressure in the line between the pump and the side opening, against the physical distance of the opening along the urethra, yields the UPP. Typically, as the opening passes a-location of constriction, whether normal or abnormal, theback pressure rises, and appears as a spike or hump in the graphical representation of pressure against distance.
Another factor related to the test just 20 mentioned is the functional profile length, which is basically the length of the urethra over which the pressure profile is taken.
One of the important parameters derived from the urethral pressure profile test (UPP) is what is 25 called the maximum urethral closure pressure, which is the difference between the maximum pressure derived by the UPP test and the intravesical pressure of the bladder.
Prior patents of interest to this subject 30 matter are as follows:
U.S. Pat No. 4,136,681, issued Jan. 30, 1979, to Edward H. Hon U.S. Pat No. 168,703, issued Jan. 30, 1979, to Kenneth Kenigsberg 35 U.S. Pat No. 4,191,196, issued issued Mar. 4, 1980, to Bradley et al U.S. Pat No. 4,217,911, issued May 5, 1981, to Terry N.
Layton .~;
.. . .
,-- 3 117~Z9 U.S. Pat No. 4,252,131, issued Feb. 24, 1981, to Hon et al U.S. Pat No. 4,006,735, issued Feb. 8, 1977, to Hittman et al U.S. Pat No. 4,023,562, issued May 17, 1977, to Hynecek et al U.S. Pat No. 3,480,003, issued Nov. 25, 1969, to N.A.
Crites U.S. Pat No. 4,265,243, issued May 5, 1981, to Glenn N.
10 Taylor U.S. Pat No. 4,301,811, issued Nov. 24, 1981, to Terry N.
Layton U.S. Pat No. 3,437,088, issued April 8, 1969, to L. J.
Bielinski U.S. Pat Uo. 4,214,593, issued July 29, 1980, to Imbruce et al GENERAL DESCRIPTION OF THIS INVENTION
It is an aspect of this invention to provide an improved urodynamic catheter which can be utilized for carrying out all of the tests described above.
More particularly, this invention provides a urodynamic catheter which includes a tube having at least three lumens and a closed leading end. A first one of 25 the lumens communicates with a first side opening in the tube spaced a first distance from the leading end. A
second lumen communicates with a second opening spaced a second distance from the leading end, the second distance being greater than the ~irst distance. A third lumen 30 communicates with a third side opening in the tube spaced a third distance from the leading end, the third distance being greater than the second distance.
In a variation of the catheter, a fourth lumen is provided in the tube, which communicates with the 35 interior of an inflatable balloon attached to the tube and located ~etween the second and third openings.
GENERAL DESCPIPTION OF THE DRAWINGS
Two embodiments of this invention are ; illustrated in the accompanying drawings, in which like ~ 4 ~1769Z9 numerals denote like parts throughout the several views, and in which:
Figure 1 is a partly ~roken away elevational view of a first embodiment of the urodynamic catheter of this invention;
Figure 2 is a partly broken away elevational view of a second embodiment thereof;
Figure 3 is an enlarged sectional view taken at the line 3-3 in figure 1; and Figure 4 is an enlarg d sectional view taken at the line 4-4 in figure 2.
DETAILED DESCRIPTION OF THE DRAWINGS
Attention is first directed to Figure 1, which shows a catheter 10 which includes a tube 12 and four internal passageways or lumens 14, 15, 16 and 17, as can be seen in Figure 3. One of the lumens, that numbered 16 in Figure 3, communicates through a bore hole 20 with a first side opening 22 which is spaced back from the leading end 24 of the tube 12. The distance from the leading end 24 through the opening 22, in the embodiment illustrated, is approximately 7 mm. The opening 22 and the lumen 16 are intended to be used for bladder filling, and therefore the opening 22 should be located reasonably close to the leading end 24 of the catheter. The actual leading end 24 is capped by a closure member 26 which is heat sealed or otherwise affixed to the cut end of the tube 12, in order to close all lumens. As can be seen the closure end 26 is rounded, for ease of insertion.
The closure member itself has a length of about 3 mm, leaving approximately 4 mm between the actual cut end of the tube and the location of the opening 22. It is to be understood that this particular distance could vary, but that it is of advantage to have the filling opening 22 located as close as possible to the leading end 24. A
second one of the lumens, that numbered 15 in Figure 3, communicates through a bore with a second side opening 28 in the tube 12. The purpose of the lumen 15 and the side opening 28 is to monitor the intravesical pressure as the ` bladder is being filled through the opening 22. This 11~ 2~
allows the cystometrogram to be plotted, this being a plot of intravesical pressure (pressure within the bladder) against volume of bladder contents. A third lumen, that numbered 14 in Figure 3, communicates though a bore hole with a third side opening 30 which is spaced further back from the leading end 2~.
The opening 30 is used to monitor closure pressure during cystometry. The location of the opening 30 will vary due to the different location of the urethral sphincter in ma~e and female patients.
In addition, the side opening 30 and its associated lumen 14 are used to establish the urethral pressure profile (UPP), which determines compliance along the urethra wall. As previously described, a constant infeed of saline solution (0.9~ NaCl) is applied through the opening where the UPP is being determined, and the back pressure is measured and plotted against longitudinal position along the urethra.
The last lumen, numbered 17 in Figure 3 communicates through the bore with the interior of a balloon 32. The balloon is made of expandible material and is adapted to assume a substantial spherical shape when inflated. The balloon 32 includes two collars 34 and 35 through which the tube 12 passes, and which are 25 heat sealed or otherwise affixed to the tube 12 in a liquid-tight manner. When deflated, the balloon 32 lies closely adjacent the tube 12, so as not to interfere with insertion or withdrawal of the catheter. When the balloon 32 is inflated, by providing pressurized liquid 30 though the lumen 17, it prevents the catheter from falling out during the investigation, and also allows cystometric examination in the standing position or during certaln exercises for detecting urinary incontinance (stress incontinance~.
It will be understood that during the UPP test, the balloon 32 would be deflated and collapsed against the tube 12.
At the outer or non-insertion end of 37 of the tube 1~, there is a connection with a plurality of smaller single-lumen tubes 39, which form the connections to the various pumps, gages, etc. which are used for the urodynamic tests described. The connection is normally made by suppling a small coupling member in which are embedded four small-diameter hollow pins, each one being adapted to fit snugly within one of the lumens of the tube 12 at one end, and within the single lumen of one of the tubes 39 at the other end. Once these connections have been made, a sleeve 41 is fitted around the connector and heated sealed or otherwise fixed in place.
The construction of this connecting location is conventional, and need not be described or illustrated in detail.
Although not illustrated in Figure 1, the tube 12 has a plurality of markings at regular spacings along its length, particularly for use during the UPP test.
Typically, these markings would be located at 1 cm intervals.
Attention is now directed to Figure 2, which shows a modified form of the catheter of this invention, differing from that of Fig. 1 primarily in the absence of the balloon 32 and the absence of the side opening ~communicating with the interior of the balloon. A~o~er ~ difference relates to the location of the opening ~
25 which in Figure 2 is closer to the leading end 24 than is the opening 30 to the leading end 24 in Figure 1.
However, as previously mentioned, the location of the side openings 30 (30a) will vary depending upon the sex of the patient, and the preference of the end user.
The remaining openings in Figure 2 are identified by the same numerals as in Figure 1.
It will be understood that the tube 12 for the Figure 2 embodiment would typically be a three lumen tube such as is shown at 44 in Figure 4. The lumens are 35 identified by the numerals 46, 47 and 48. However, there is no reason why a four-lumen tube could not be utilized for the Figure 2 embodiment, with only three of the lumens active, and the other lumen being closed. It will ; be understood, in a general way, that a tube for use with . - . . .
, 7 1~769Z9 this invention needs to have at least a number of lumens corresponding to the opening, (including the opening for the balloon _f a balloon is present), but that additional lumens could be provided, and simply not utilized.
It will be evident from the foregoing description how the two embodiments of the catheter of this invention may be utilized for establishing the parameters described under the heading "Bac~ground of This Invention". It will further be understood that the lumen communicating with the opening 30 (30a) can be utilized to monitor closure pressure during cystometry.
In ~igure 2, a series of marker positions S0 have been drawn adjacent to the tube 12, to show the locations of longitudinally spaced marks used during the lS UPP test It is desirable to givè an approximate idea of suitable or satisfactory dimensions for the spacings of the various openings, although these are not given with any intention to be limiting. In a satisfactory catheter constructed in accordance with Figure 1, the opening 22 is located 7 mm away from the leading end 24, and the spacing between openings 22 and 28 is approximately 1 cm.
Thus, the distance from the leading end 24 to the opening 28 is approximately triple the distance from the leading 25 end 24 to the opening 22. From the opening 22 to the opening 30, a suitable distance is approximately 8 cm, with the balloon 32 being located somewhat closer to the opening 30 than to the opening 28.
For the catheter of Figure 2, the opening 22 30 may again be located about 7 mm from the leading end 24a and the spacing between the openings 22 and 28 may be about 1 cm. The distance from the opening 22 to the opening 30a may be about 7 cm. Again, these distances may vary, particularly due to the fact that the position 35 of the opening 30 (30a) depends somewhat on the sex Gf the patient and the preference of the individual examlner .
~ 8 11769Z~
Each lumen may have a diameter in the range of about 0.8 mm, and the tube itself may have a diameter of aroun-i 3.3 mm.
While specific embodiments of this invention have been illustrated in the accompanying drawings and described in the foregoing disclosure, it will be apparent to those skilled in the art that changes and modifications may be made therein without departing from the essence of this invention as set forth in the appended claims.
This invention relates generally to the medical field of Urodynamic studies, and has to do particularly with the construction of an improved urodynamic catheter adapted to conduct urodynamic tests on the lower urinary tract.
BACKGOUND OF THIS INVENTION
. _ Urodynamic tests are diagnostic procedures, the purpose of which is to assess the physiologic properties of the lower urinary tract, i.e. the bladder and urethra.
The urinary bladder and the urethra work together as a unit to serve the double purpose of collecting and conveying urine. The bladder is composed mostly of small muscles which are to a large degree under voluntary control. Muscle bundles run in different directions and from layer to layer.
The adaptation of the bladder to the changing urine volume is mainly due to the viscal-elastic property of the organ. The bladder wall, in a healthy individual, is able to expand without any significant increase in tension as the bladder fills with urine. One of the 25 major urodynamic tests involves filling the bladder with a saline solution, and simultaneously measuring the intravesical pressure. The plot of pressure against volume of contents during this filling is called a cystometrogram, and the early portion of this graphical 30 representation of pressure against volume is substantially flat in a healthy individual. When the -~ 2 1176~2~
individual is instructed to void, or when the urge to void arises automatically, the pressure inside the bladder increases.
Another standard urodynamic test is called the urethral pressure profile (UPP). This test is typically carried out by inserting a catheter having a side opening and a lumen communicating with that opening. A dilute saline solution is pumped into the lumen and out through the side opening at a fixed rate, while the catheter is steadily withdrawn from the urethra at a substantially constant speed. A plot of the back pressure in the line between the pump and the side opening, against the physical distance of the opening along the urethra, yields the UPP. Typically, as the opening passes a-location of constriction, whether normal or abnormal, theback pressure rises, and appears as a spike or hump in the graphical representation of pressure against distance.
Another factor related to the test just 20 mentioned is the functional profile length, which is basically the length of the urethra over which the pressure profile is taken.
One of the important parameters derived from the urethral pressure profile test (UPP) is what is 25 called the maximum urethral closure pressure, which is the difference between the maximum pressure derived by the UPP test and the intravesical pressure of the bladder.
Prior patents of interest to this subject 30 matter are as follows:
U.S. Pat No. 4,136,681, issued Jan. 30, 1979, to Edward H. Hon U.S. Pat No. 168,703, issued Jan. 30, 1979, to Kenneth Kenigsberg 35 U.S. Pat No. 4,191,196, issued issued Mar. 4, 1980, to Bradley et al U.S. Pat No. 4,217,911, issued May 5, 1981, to Terry N.
Layton .~;
.. . .
,-- 3 117~Z9 U.S. Pat No. 4,252,131, issued Feb. 24, 1981, to Hon et al U.S. Pat No. 4,006,735, issued Feb. 8, 1977, to Hittman et al U.S. Pat No. 4,023,562, issued May 17, 1977, to Hynecek et al U.S. Pat No. 3,480,003, issued Nov. 25, 1969, to N.A.
Crites U.S. Pat No. 4,265,243, issued May 5, 1981, to Glenn N.
10 Taylor U.S. Pat No. 4,301,811, issued Nov. 24, 1981, to Terry N.
Layton U.S. Pat No. 3,437,088, issued April 8, 1969, to L. J.
Bielinski U.S. Pat Uo. 4,214,593, issued July 29, 1980, to Imbruce et al GENERAL DESCRIPTION OF THIS INVENTION
It is an aspect of this invention to provide an improved urodynamic catheter which can be utilized for carrying out all of the tests described above.
More particularly, this invention provides a urodynamic catheter which includes a tube having at least three lumens and a closed leading end. A first one of 25 the lumens communicates with a first side opening in the tube spaced a first distance from the leading end. A
second lumen communicates with a second opening spaced a second distance from the leading end, the second distance being greater than the ~irst distance. A third lumen 30 communicates with a third side opening in the tube spaced a third distance from the leading end, the third distance being greater than the second distance.
In a variation of the catheter, a fourth lumen is provided in the tube, which communicates with the 35 interior of an inflatable balloon attached to the tube and located ~etween the second and third openings.
GENERAL DESCPIPTION OF THE DRAWINGS
Two embodiments of this invention are ; illustrated in the accompanying drawings, in which like ~ 4 ~1769Z9 numerals denote like parts throughout the several views, and in which:
Figure 1 is a partly ~roken away elevational view of a first embodiment of the urodynamic catheter of this invention;
Figure 2 is a partly broken away elevational view of a second embodiment thereof;
Figure 3 is an enlarged sectional view taken at the line 3-3 in figure 1; and Figure 4 is an enlarg d sectional view taken at the line 4-4 in figure 2.
DETAILED DESCRIPTION OF THE DRAWINGS
Attention is first directed to Figure 1, which shows a catheter 10 which includes a tube 12 and four internal passageways or lumens 14, 15, 16 and 17, as can be seen in Figure 3. One of the lumens, that numbered 16 in Figure 3, communicates through a bore hole 20 with a first side opening 22 which is spaced back from the leading end 24 of the tube 12. The distance from the leading end 24 through the opening 22, in the embodiment illustrated, is approximately 7 mm. The opening 22 and the lumen 16 are intended to be used for bladder filling, and therefore the opening 22 should be located reasonably close to the leading end 24 of the catheter. The actual leading end 24 is capped by a closure member 26 which is heat sealed or otherwise affixed to the cut end of the tube 12, in order to close all lumens. As can be seen the closure end 26 is rounded, for ease of insertion.
The closure member itself has a length of about 3 mm, leaving approximately 4 mm between the actual cut end of the tube and the location of the opening 22. It is to be understood that this particular distance could vary, but that it is of advantage to have the filling opening 22 located as close as possible to the leading end 24. A
second one of the lumens, that numbered 15 in Figure 3, communicates through a bore with a second side opening 28 in the tube 12. The purpose of the lumen 15 and the side opening 28 is to monitor the intravesical pressure as the ` bladder is being filled through the opening 22. This 11~ 2~
allows the cystometrogram to be plotted, this being a plot of intravesical pressure (pressure within the bladder) against volume of bladder contents. A third lumen, that numbered 14 in Figure 3, communicates though a bore hole with a third side opening 30 which is spaced further back from the leading end 2~.
The opening 30 is used to monitor closure pressure during cystometry. The location of the opening 30 will vary due to the different location of the urethral sphincter in ma~e and female patients.
In addition, the side opening 30 and its associated lumen 14 are used to establish the urethral pressure profile (UPP), which determines compliance along the urethra wall. As previously described, a constant infeed of saline solution (0.9~ NaCl) is applied through the opening where the UPP is being determined, and the back pressure is measured and plotted against longitudinal position along the urethra.
The last lumen, numbered 17 in Figure 3 communicates through the bore with the interior of a balloon 32. The balloon is made of expandible material and is adapted to assume a substantial spherical shape when inflated. The balloon 32 includes two collars 34 and 35 through which the tube 12 passes, and which are 25 heat sealed or otherwise affixed to the tube 12 in a liquid-tight manner. When deflated, the balloon 32 lies closely adjacent the tube 12, so as not to interfere with insertion or withdrawal of the catheter. When the balloon 32 is inflated, by providing pressurized liquid 30 though the lumen 17, it prevents the catheter from falling out during the investigation, and also allows cystometric examination in the standing position or during certaln exercises for detecting urinary incontinance (stress incontinance~.
It will be understood that during the UPP test, the balloon 32 would be deflated and collapsed against the tube 12.
At the outer or non-insertion end of 37 of the tube 1~, there is a connection with a plurality of smaller single-lumen tubes 39, which form the connections to the various pumps, gages, etc. which are used for the urodynamic tests described. The connection is normally made by suppling a small coupling member in which are embedded four small-diameter hollow pins, each one being adapted to fit snugly within one of the lumens of the tube 12 at one end, and within the single lumen of one of the tubes 39 at the other end. Once these connections have been made, a sleeve 41 is fitted around the connector and heated sealed or otherwise fixed in place.
The construction of this connecting location is conventional, and need not be described or illustrated in detail.
Although not illustrated in Figure 1, the tube 12 has a plurality of markings at regular spacings along its length, particularly for use during the UPP test.
Typically, these markings would be located at 1 cm intervals.
Attention is now directed to Figure 2, which shows a modified form of the catheter of this invention, differing from that of Fig. 1 primarily in the absence of the balloon 32 and the absence of the side opening ~communicating with the interior of the balloon. A~o~er ~ difference relates to the location of the opening ~
25 which in Figure 2 is closer to the leading end 24 than is the opening 30 to the leading end 24 in Figure 1.
However, as previously mentioned, the location of the side openings 30 (30a) will vary depending upon the sex of the patient, and the preference of the end user.
The remaining openings in Figure 2 are identified by the same numerals as in Figure 1.
It will be understood that the tube 12 for the Figure 2 embodiment would typically be a three lumen tube such as is shown at 44 in Figure 4. The lumens are 35 identified by the numerals 46, 47 and 48. However, there is no reason why a four-lumen tube could not be utilized for the Figure 2 embodiment, with only three of the lumens active, and the other lumen being closed. It will ; be understood, in a general way, that a tube for use with . - . . .
, 7 1~769Z9 this invention needs to have at least a number of lumens corresponding to the opening, (including the opening for the balloon _f a balloon is present), but that additional lumens could be provided, and simply not utilized.
It will be evident from the foregoing description how the two embodiments of the catheter of this invention may be utilized for establishing the parameters described under the heading "Bac~ground of This Invention". It will further be understood that the lumen communicating with the opening 30 (30a) can be utilized to monitor closure pressure during cystometry.
In ~igure 2, a series of marker positions S0 have been drawn adjacent to the tube 12, to show the locations of longitudinally spaced marks used during the lS UPP test It is desirable to givè an approximate idea of suitable or satisfactory dimensions for the spacings of the various openings, although these are not given with any intention to be limiting. In a satisfactory catheter constructed in accordance with Figure 1, the opening 22 is located 7 mm away from the leading end 24, and the spacing between openings 22 and 28 is approximately 1 cm.
Thus, the distance from the leading end 24 to the opening 28 is approximately triple the distance from the leading 25 end 24 to the opening 22. From the opening 22 to the opening 30, a suitable distance is approximately 8 cm, with the balloon 32 being located somewhat closer to the opening 30 than to the opening 28.
For the catheter of Figure 2, the opening 22 30 may again be located about 7 mm from the leading end 24a and the spacing between the openings 22 and 28 may be about 1 cm. The distance from the opening 22 to the opening 30a may be about 7 cm. Again, these distances may vary, particularly due to the fact that the position 35 of the opening 30 (30a) depends somewhat on the sex Gf the patient and the preference of the individual examlner .
~ 8 11769Z~
Each lumen may have a diameter in the range of about 0.8 mm, and the tube itself may have a diameter of aroun-i 3.3 mm.
While specific embodiments of this invention have been illustrated in the accompanying drawings and described in the foregoing disclosure, it will be apparent to those skilled in the art that changes and modifications may be made therein without departing from the essence of this invention as set forth in the appended claims.
Claims (10)
1. A urodynamic catheter comprising:
a tube having at least four lumens and a closed leading end, a first one of said lumens communicating with a first side opening in the tube spaced a first distance from said leading end, a second one of said lumens communicating with a second side opening in the tube spaced a second distance from said leading end, said second distance being greater than said first distance, a third one of said lumens communicating with a third side opening in the tube, spaced a third distance from said leading end, said third distance being greater than said second distance, a fourth one of said lumens communicating with the interior of an inflatable balloon attached to the tube, the balloon being located between said second and third openings.
a tube having at least four lumens and a closed leading end, a first one of said lumens communicating with a first side opening in the tube spaced a first distance from said leading end, a second one of said lumens communicating with a second side opening in the tube spaced a second distance from said leading end, said second distance being greater than said first distance, a third one of said lumens communicating with a third side opening in the tube, spaced a third distance from said leading end, said third distance being greater than said second distance, a fourth one of said lumens communicating with the interior of an inflatable balloon attached to the tube, the balloon being located between said second and third openings.
2. The catheter claimed in claim 1, in which said second distance is about triple said first distance.
3. The catheter claimed in claim 1 or claim 2, in which said third distance is between about 4 and 5.5 times as great as said second distance.
4. The catheter claimed in claim 1, in which the ratio or said first, second and third distances is substantially 1:3:12.5.
5. The catheter claimed in claim 1, in which the ratio of said first, second and third distances is substantially 1:3:11.
6. The catheter claimed in claim 4 or claim 5, in which said first distance is substantially 0.7 cm.
7. The catheter claimed in claim 1 or claim 5, in which said balloon is centered at a location along the tube which lies closer to said third opening than to said second opening.
8. The catheter claimed in claim 1, claim 2 or claim 3, in which said leading end is closed by a rounded closure member which seals all lumens.
9. The catheter claimed in claim 1, claim 2 or claim 3, further including markings at regular intervals along said tube.
10. The catheter claimed in claim 1, claim 2 or claim 3, further including markings at regular intervals of 1 cm along said tube.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000407302A CA1176929A (en) | 1982-07-14 | 1982-07-14 | Urodynamic catheter |
| GB08317948A GB2123300B (en) | 1982-07-14 | 1983-07-01 | Urodynamic catheter |
| DE19833324747 DE3324747A1 (en) | 1982-07-14 | 1983-07-08 | URODYNAMIC CATHETER |
| FR8311754A FR2530149B1 (en) | 1982-07-14 | 1983-07-13 | URETRAL CATHETER INTENDED IN PARTICULAR FOR CYSTOMETRIC EXAMINATIONS |
| JP58127047A JPS5922561A (en) | 1982-07-14 | 1983-07-14 | Urine dynamical cathetel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000407302A CA1176929A (en) | 1982-07-14 | 1982-07-14 | Urodynamic catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1176929A true CA1176929A (en) | 1984-10-30 |
Family
ID=4123221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000407302A Expired CA1176929A (en) | 1982-07-14 | 1982-07-14 | Urodynamic catheter |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5922561A (en) |
| CA (1) | CA1176929A (en) |
| DE (1) | DE3324747A1 (en) |
| FR (1) | FR2530149B1 (en) |
| GB (1) | GB2123300B (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59225071A (en) * | 1983-06-03 | 1984-12-18 | 日本シヤ−ウツド株式会社 | Catheter |
| JPS6092502U (en) * | 1983-11-28 | 1985-06-24 | 土田 正義 | Urethral pressure detection device |
| DE3406294A1 (en) * | 1984-02-22 | 1985-09-05 | Hubmann, Max, Dr., 8520 Erlangen | Catheter |
| DE8407894U1 (en) * | 1984-03-15 | 1984-09-06 | Richard Wolf Gmbh, 7134 Knittlingen | DILATATOR FOR WIDING INPUT CHANNELS OF THE KIDNEY |
| US4921483A (en) * | 1985-12-19 | 1990-05-01 | Leocor, Inc. | Angioplasty catheter |
| US4777951A (en) * | 1986-09-19 | 1988-10-18 | Mansfield Scientific, Inc. | Procedure and catheter instrument for treating patients for aortic stenosis |
| DE3810408A1 (en) * | 1988-03-26 | 1989-10-12 | Thomas Lang | Duodenal probe |
| US4927418A (en) * | 1989-01-09 | 1990-05-22 | Advanced Cardiovascular Systems, Inc. | Catheter for uniform distribution of therapeutic fluids |
| JP2517329Y2 (en) * | 1990-03-16 | 1996-11-20 | 日本ゼオン株式会社 | Pacing catheter |
| IT1272800B (en) * | 1994-09-02 | 1997-06-30 | Mauro Dimitri | DRAINAGE CATHETER FOR CONTINENT URINARY NEO-BLADDS MADE WITH THE USE OF THE INTESTINE OR STOMACH |
| US5688237A (en) * | 1995-05-04 | 1997-11-18 | Cedars-Sinai Medical Center | Implantable catheter and method of use |
| US5980483A (en) * | 1996-05-21 | 1999-11-09 | Dimitri; Mauro | Drainage catheter for continent urinary neo-bladders |
| DE19947907A1 (en) * | 1999-10-06 | 2001-04-19 | Thomas Wolffgram | Catheter for the combined examination of the left ventricle and the right and left coronary arteries |
| US7112177B2 (en) | 2003-03-04 | 2006-09-26 | Wolfe Tory Medical, Inc. | Apparatus for monitoring intra-abdominal pressure |
| AU2003901057A0 (en) * | 2003-03-10 | 2003-03-20 | Zsolt Balosh | Intra-abdominal urinary catheter pressure monitor |
| AU2004218771B2 (en) * | 2003-03-10 | 2010-03-25 | Abviser Medical, Llc | Intra-abdominal pressure monitoring uninary catheter |
| DE20308756U1 (en) | 2003-06-04 | 2003-08-07 | Urovision GmbH, 83043 Bad Aibling | Urodynamic catheter has three coaxial channels to control balloon and with pressure recording connection |
| EP1804648A4 (en) | 2004-10-11 | 2009-07-15 | Wolfe Tory Medical Inc | Intra-abdominal pressure monitoring device and method |
| FR2881658B1 (en) * | 2005-02-08 | 2007-04-27 | Peters Surgical Soc Par Action | PROBE FOR URODYNAMIC EXAMINATION |
| DE102011106676A1 (en) * | 2011-07-05 | 2013-03-14 | Eberhard-Karls-Universität Tübingen Universitätsklinikum | Intrajugular Balloon Catheter |
| US11819644B2 (en) * | 2019-10-16 | 2023-11-21 | Cjmi, Llc | Method and apparatus for treating genitourinary problems |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1212249B (en) * | 1964-03-23 | 1966-03-10 | Franz Josef Stuecker Dr | Device for tamponade and secretion pressure determination of intestinal fistulas |
| US3394705A (en) * | 1965-10-22 | 1968-07-30 | Daniel J. Abramson | Drainage balloon catheter having means for antiseptic treatment of the urethra |
| FR1537010A (en) * | 1966-06-16 | 1968-08-23 | Respiratory probe | |
| US3437088A (en) * | 1966-12-01 | 1969-04-08 | Leonard J Bielinski | Apparatus for measuring motility of body organs |
| US3480003A (en) * | 1967-02-03 | 1969-11-25 | Battelle Development Corp | Apparatus for measuring esophageal motility |
| US4006735A (en) * | 1974-07-16 | 1977-02-08 | Hittman Corporation | Pressure sensor apparatus |
| US4023562A (en) * | 1975-09-02 | 1977-05-17 | Case Western Reserve University | Miniature pressure transducer for medical use and assembly method |
| US4136681A (en) * | 1976-02-17 | 1979-01-30 | American Home Products Corporation | Catheter for measuring intrauterine pressure |
| US4191196A (en) * | 1976-06-15 | 1980-03-04 | American Medical Systems, Inc. | Profilometry method and apparatus |
| DE2632280A1 (en) * | 1976-07-17 | 1978-01-19 | Hoechst Ag | UROLOGICAL CATHETER |
| US4168703A (en) * | 1977-07-18 | 1979-09-25 | Kenneth Kenigsberg | Gastroesophageal reflux diagnostic tool |
| DE2734247C2 (en) * | 1977-07-29 | 1984-07-19 | Fresenius AG, 6380 Bad Homburg | Device for continuous chemical analysis in the living body |
| DE2737855A1 (en) * | 1977-08-23 | 1979-03-08 | Edgar Gindele | Bladder drainage catheter with inflatable tip - has channel for irrigating urinary tract, and outer end which is forked to receive tube coupling |
| US4252131A (en) * | 1978-04-17 | 1981-02-24 | American Home Products Corporation | Catheter for measuring intrauterine pressure |
| US4214593A (en) * | 1978-09-18 | 1980-07-29 | Mallinckrodt, Inc. | Esophageal pressure monitoring device |
| US4217911A (en) * | 1978-10-27 | 1980-08-19 | The Kendall Company | Cystometry system |
| US4301811A (en) * | 1978-10-27 | 1981-11-24 | The Kendall Company | Cystometry system |
| US4265243A (en) * | 1979-04-04 | 1981-05-05 | The Kendall Company | Collection container with siphon assembly |
| US4328806A (en) * | 1980-06-18 | 1982-05-11 | American Hospital Supply Corporation | Catheter with trans-luminal gas pathway |
| EP0044804A1 (en) * | 1980-07-21 | 1982-01-27 | Barsom, Shafik, Dr. med. | Urethral catheter |
-
1982
- 1982-07-14 CA CA000407302A patent/CA1176929A/en not_active Expired
-
1983
- 1983-07-01 GB GB08317948A patent/GB2123300B/en not_active Expired
- 1983-07-08 DE DE19833324747 patent/DE3324747A1/en not_active Ceased
- 1983-07-13 FR FR8311754A patent/FR2530149B1/en not_active Expired
- 1983-07-14 JP JP58127047A patent/JPS5922561A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| GB2123300B (en) | 1986-01-02 |
| GB8317948D0 (en) | 1983-08-03 |
| FR2530149B1 (en) | 1988-04-29 |
| JPH0344783B2 (en) | 1991-07-09 |
| DE3324747A1 (en) | 1984-02-16 |
| GB2123300A (en) | 1984-02-01 |
| FR2530149A1 (en) | 1984-01-20 |
| JPS5922561A (en) | 1984-02-04 |
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