WO1991005577A1 - Catheter device with insertion stop means - Google Patents

Catheter device with insertion stop means Download PDF

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Publication number
WO1991005577A1
WO1991005577A1 PCT/US1990/005481 US9005481W WO9105577A1 WO 1991005577 A1 WO1991005577 A1 WO 1991005577A1 US 9005481 W US9005481 W US 9005481W WO 9105577 A1 WO9105577 A1 WO 9105577A1
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WO
WIPO (PCT)
Prior art keywords
catheter
handle
insertable
length
flange
Prior art date
Application number
PCT/US1990/005481
Other languages
French (fr)
Inventor
Todd A. Linsenmeyer
Original Assignee
The Board Of Trustees Of The Leland Stanford Junior University
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 The Board Of Trustees Of The Leland Stanford Junior University filed Critical The Board Of Trustees Of The Leland Stanford Junior University
Publication of WO1991005577A1 publication Critical patent/WO1991005577A1/en

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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
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters

Definitions

  • This invention pertains to catheters and more particularly to urethral catheters.
  • Catheter devices are well known in the prior art and have previously been used, for example, for emptying bladders. Catheters are particularly useful for this purpose in conjunction with people who, for example, for reasons of spinal cord injuries, are neurologically unable to empty their bladders.
  • a wide ⁇ spread technique for these individuals to empty their bladders is to insert a catheter through the urethra into the bladder, thereby allowing the urine to drain out of the bladder through the catheter. The catheter is then removed.
  • Figure 1 depicts the use of a typical prior art catheter 11 to empty a bladder 10.
  • catheter 11 is inserted through urethra 13 into bladder 10.
  • One or more orifices 13 at the distal end of catheter 11 serves to accept urine from bladder 10 for removal through fluid channel 12 contained within catheter 11.
  • fluid channel 12 contained within catheter 11.
  • a common result from this failure to provide an indication of how far the catheter has been inserted into the bladder is that the catheter is inserted too deeply into the bladder.
  • Several problems may result from the use of the catheter. For example, if the catheter pushes into the posterior or superior portion of the bladder wall, as shown in Figure 2, the catheter may cause trauma to the bladder, causing irritation and sometimes enough to cause bleeding.
  • Urodyna ic testing involves passing carbon dioxide or water through the catheter into the bladder and monitoring bladder contractions.
  • Prior art catheters are also often used to drain bladder replacements.
  • Patients who must have their bladder removed for any reason i.e. cancer
  • the bladder replacement may be connected to the urethra or may be constructed to drain out of an opening in the abdomen. It is often purposely constructed so it will only drain with catheterization.
  • the patients do not have normal bladder sensation.
  • the intestine has a much thinner wall than the bladder, so there is a risk of pushing a prior art catheter through the bladder replacement, especially shortly after surgery. There is also the problem of incomplete emptying because of placing the catheter too deeply into the bladder replacement.
  • a novel catheter which provides a means for easily and repeatably allowing the user to easily insert the catheter to a predefined distance which is optimal for emptying the bladder. This predefined distance is determined by a physician or nurse during the initial catheterization. Additionally this catheter can be maintained at the correct position, just inside the bladder, for urodynamic testing.
  • this takes the form of an enlarged portion, for example a flange, located between the handle and the insertable portion of the catheter.
  • This flange may be at a fixed distance or slidably adjustable along the length of the catheter. This flange serves to prevent the catheter tip from being inserted into the bladder further than its optimal location.
  • the handle may be made with a considerably larger diameter. This allows it to be more easily grasped by the user than the relatively small diameter of the insertable portion of the catheter. This allows not only easier insertion, but also easier withdrawal of the catheter.
  • an average user can, with little instruction, easily, quickly, and repeatably insert the catheter through the urethra into the bladder to the optimal depth for draining the bladder, and thereby preventing the catheter from being inserted too deeply into the bladder.
  • Figure 1 is a diagram depicting a prior art catheter inserted into a bladder
  • Figure 2 is a diagram depicting a prior art catheter inserted far too deeply into a bladder, thereby causing trauma to the bladder wall;
  • Figure 3 is a longitudinal cross-section of one embodiment of a catheter device constructed in accordance with the teachings of this invention.
  • Figure 4 is a cross-sectional, longitudinal view of one embodiment of a catheter device constructed in accordance with the teachings of this invention shown inserted through the urethra and into the bladder of a female user.
  • FIG 3 is a longitudinal cross section of one embodiment of the catheter device 30 constructed in accordance with the teachings of this invention.
  • catheter device 30 includes insertable catheter portion_33-constructed-much alon the lines of prior art catheters, and including one or more orifices 34 located at its distal end.
  • insertable catheter portion 33 is of limited length, and connected to or integrally formed with the remainder of catheter device 30.
  • the remainder of catheter device 30 includes handle 31 and flange or stop means 32 connected to the proximal end of insertable catheter portion 33.
  • Handle 31 is made to any convenient diameter and length, in order to be easily grasped and manipulated by a user. If desired, handle 31 is integrally formed with flange 32 and insertable catheter portion 33 as a single structure. Alternatively, one or both of flange 32 and insertable catheter portion 33 are removable from handle portion 31, for example by snaps, threads, etc. If desired, each of the components, i.e. handle 31, flange 32, and insertable catheter portion 33 are formed of stainless steel, various plastics, rubber, or silicone.
  • insertable catheter portion 33 is fabricated to have a diameter B within the range of approximately 12 to 18 French, preferably 14 French. (French is the terminology used to describe the circumference of a urinary catheter. French size is equivalent to the circumference of the catheter in millimeters, or 3.14 times the diameter of the catheter in millimeters.) Insertable catheter portion 33 is fabricated to have a length C. In the adult male, length C will range between approximately 18 and 25 cm. In the adult female, length C will range between approximately 4 and 8 cm.
  • Handle 31 is fabricated to have the same diameter or a larger diameter than insertable catheter portion 33.
  • the diameter A of handle 31 is formed in the range of 12 to 36 French, preferably 30 French.
  • handle 31 with a larger diameter than the insertable portion 33 allows handle 31 to be much more easily grasped and manipulated by the user than are prior art catheters, which maintain the diameter of the insertable portion throughout the entire length of the catheter.
  • the length of handle 31 will vary from approximately 3 cm to 6 cm in the male and from approximately 6 cm to 15 cm in the female.
  • catheter device 30 includes flange 32 located between handle 31 and insertable catheter 33.
  • Flange 32 has a thickness E in the range of approximately 0.5 to 1 cm, typically 0.7 cm.
  • Flange 32 also has a diameter D of approximately 1.5 to 3.5 cm, and preferably approximately 2.5 cm.
  • Flange 32 serves as a stop, thereby preventing catheter device 30 from entering into the urethra to a distance greater than C. In this manner, orifice 34 located at the distal end of insertable catheter portion 33 is insured to be located in the optimal portion of the bladder for drainage via catheter, avoiding the problems often encountered with the use of prior art catheters.
  • flange 32 allows insertable catheter portion 33 (having length C) to be inserted through the urethra into the bladder to the point just beyond the bladder neck, thereby allowing complete drainage and preventing damage to the bladder wall.
  • a flange 32 having a diameter D distinct from the diameter A of handle 31 allows the design of both handle 31 and flange 32 to be optimized for their own specific purposes.
  • flange 32 is slidably adjustable along the length of the catheter so as to provide the appropriate length C of insertable catheter portion 33.
  • catheter 30 includes markings in order to provide an indication of a preferred depth of insertion for a particular patient.
  • orifice 34 is connected to a channel running through insertable catheter portion 33, flange 32, and handle 31 to an appropriate exit point in handle 31.
  • handle 31 and flange 32 are fabricated to have the same diameter or, in other words, a single portion of catheter device 30 serves as both handle 31 and flange 32.
  • a diameter is selected which serves as both a useful diameter handle 31 to facilitate grasping and manipulation by the user, and for flange 32 which serves as a stop means defining how deep within the bladder orifice 34 is located.
  • Figure 4 depicts catheter device 30 inserted through urethra 42 into bladder 41 of a female patient.
  • flange 32 has a diameter sufficiently large to serve as a stop at opening 43 of urethra 42, thereby preventing catheter device 30 from being inserted through urethra 42 into bladder 41 too deeply.
  • orifice 34 located at the distal end of insertable catheter portion 33 of catheter device 30 is located at approximately the optimal portion of bladder 41 for drainage of urine, i.e. that portion of bladder 41 just beyond bladder neck 41a.
  • catheters of other dimensions for example, dimensions suitable-for use. ith a child, and for catheters designed for use other than as urethral catheters such as catheterization of a bladder replacement that has an opening on the surface of the abdomen.
  • catheters may be constructed in accordance with the teachings of this invention which are suitable for use with species other than human, for example for veterinary purposes.
  • a handle is provided for receiving and holding a catheter, such as a typical prior art catheter.
  • a handle alone is provided for accepting a typical catheter which may itself be used with or without the handle.
  • the catheter is, for example, inserted partly or entirely through the handle, thereby allowing easy manipulation and proper placement of a standard catheter inside the user.
  • this embodiment of the invention may optionally include a flange portion of greater diameter than the handle itself, in order to facilitate the stop mechanism for defining the appropriate distance of insertion of the catheter.
  • such handle having a throughbore for accepting a catheter to a predetermined depth within the handle, or completely through the handle.
  • the catheter is held in the handle either by an interference fit, which may be easily provided, particularly if the handle or the inner lining of the conduity within the handle for accepting the catheter is constructed of resilient material.
  • the catheter is held in the handle by means of screws, threads, or the like.

Abstract

A novel catheter is provided which includes means for easily and repeatably allowing the user to easily insert the catheter to a predefined distance which is optimal for emptying the bladder. In one embodiment, this takes the form of an enlarged portion, for example, a flange, located between the handle and the insertable portion of the catheter. In another embodiment, the handle is of a convenient size to be grasped and easily manipulated by the user, which is generally considerably larger than the relatively small diameter of the insertable portion of the catheter.

Description

CATHETER DEVICE WITH INSERTION STOP MEANS
INTRODUCTION
Background This invention pertains to catheters and more particularly to urethral catheters.
Catheter devices are well known in the prior art and have previously been used, for example, for emptying bladders. Catheters are particularly useful for this purpose in conjunction with people who, for example, for reasons of spinal cord injuries, are neurologically unable to empty their bladders. A wide¬ spread technique for these individuals to empty their bladders is to insert a catheter through the urethra into the bladder, thereby allowing the urine to drain out of the bladder through the catheter. The catheter is then removed.
Figure 1 depicts the use of a typical prior art catheter 11 to empty a bladder 10. As shown in Figure 1, catheter 11 is inserted through urethra 13 into bladder 10. One or more orifices 13 at the distal end of catheter 11 serves to accept urine from bladder 10 for removal through fluid channel 12 contained within catheter 11. Unfortunately, such a typical prior art straight catheter 11 gives no indication of how far the catheter enters into the bladder.
A common result from this failure to provide an indication of how far the catheter has been inserted into the bladder is that the catheter is inserted too deeply into the bladder. Several problems may result from the use of the catheter. For example, if the catheter pushes into the posterior or superior portion of the bladder wall, as shown in Figure 2, the catheter may cause trauma to the bladder, causing irritation and sometimes enough to cause bleeding.
More commonly, if the catheter has entered too deeply into the bladder (i.e. past portion 15 of bladder 10 just beyond the neck of the bladder), as shown in Fig. 1, there is incomplete emptying of the bladder. This causes residual urine to remain in the bladder, increasing the risk of infection to the patient. Furthermore, if the bladder is not completely drained of urine, the bladder must be drained more frequently, requiring more frequent catheterizations which are not only inconvenient, but are more likely to cause trauma to the bladder wall. The above difficulties of prior art catheters are compounded by the fact that in an attempt to empty the bladder completely, patients are taught to slowly withdraw the catheter from the bladder. However, many patients have difficulty emptying their bladders because of neurologic problems such as strokes, spinal cord injury and multiple sclerosis. These patients often have poor hand control. It may take days or weeks of practice, or even might be impossible to master the technique of slowly withdrawing the prior art catheters. This results in many hours of nursing spent in instructing and supervising patients to empty their bladders. Additionally, they need to spend time catheterizing the patients until the patients become proficient at the technique. Prior art catheters of various diameters are also often inserted into the bladder during tests to evaluate the ability of the bladder to contract (urodynamic testing). Urodyna ic testing involves passing carbon dioxide or water through the catheter into the bladder and monitoring bladder contractions.
If the prior art catheters are inserted too deeply into the bladder, the bladder will contract in response to the catheter and give significant artifacts which can lead to wrong conclusions about a persons bladder function. Even if the prior art catheter is initially carefully placed just near the entrance of the bladder, it often gets pushed deeper into the bladder. This is because the urodynamic tests are often repeated with the patients in various positions, i.e., laying, sitting and standing. With prior art catheters it is difficult to know if the catheter has moved into the bladder and repositioning of prior art catheters is time consuming.
Prior art catheters are also often used to drain bladder replacements. Patients who must have their bladder removed for any reason (i.e. cancer) undergo an operation to form a substitute bladder from a segment of intestine. The bladder replacement may be connected to the urethra or may be constructed to drain out of an opening in the abdomen. It is often purposely constructed so it will only drain with catheterization. The patients, however, do not have normal bladder sensation. The intestine has a much thinner wall than the bladder, so there is a risk of pushing a prior art catheter through the bladder replacement, especially shortly after surgery. There is also the problem of incomplete emptying because of placing the catheter too deeply into the bladder replacement.
It is the object of this invention to provide a catheter whereby optimum insertion into the bladder to a predefined distance is readily and repeatably achieved by an average user. Accordingly, it is an object of this invention to provide a catheter which is easy to manipulate by the average user, or a user with impaired hand use. SUMMARY OF THE INVENTION In accordance with the teachings of this invention, a novel catheter is provided which provides a means for easily and repeatably allowing the user to easily insert the catheter to a predefined distance which is optimal for emptying the bladder. This predefined distance is determined by a physician or nurse during the initial catheterization. Additionally this catheter can be maintained at the correct position, just inside the bladder, for urodynamic testing. In one embodiment of this invention, this takes the form of an enlarged portion, for example a flange, located between the handle and the insertable portion of the catheter. This flange may be at a fixed distance or slidably adjustable along the length of the catheter. This flange serves to prevent the catheter tip from being inserted into the bladder further than its optimal location. Also in accordance with the teachings of this invention, the handle may be made with a considerably larger diameter. This allows it to be more easily grasped by the user than the relatively small diameter of the insertable portion of the catheter. This allows not only easier insertion, but also easier withdrawal of the catheter. Due to the nature of catheter devices constructed in accordance with the teachings of this invention, an average user can, with little instruction, easily, quickly, and repeatably insert the catheter through the urethra into the bladder to the optimal depth for draining the bladder, and thereby preventing the catheter from being inserted too deeply into the bladder.
BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a diagram depicting a prior art catheter inserted into a bladder; Figure 2 is a diagram depicting a prior art catheter inserted far too deeply into a bladder, thereby causing trauma to the bladder wall;
Figure 3 is a longitudinal cross-section of one embodiment of a catheter device constructed in accordance with the teachings of this invention; and
Figure 4 is a cross-sectional, longitudinal view of one embodiment of a catheter device constructed in accordance with the teachings of this invention shown inserted through the urethra and into the bladder of a female user.
DETAILED DESCRIPTION Figure 3 is a longitudinal cross section of one embodiment of the catheter device 30 constructed in accordance with the teachings of this invention. As shown in Figure 3, catheter device 30 includes insertable catheter portion_33-constructed-much alon the lines of prior art catheters, and including one or more orifices 34 located at its distal end. Of importance, insertable catheter portion 33 is of limited length, and connected to or integrally formed with the remainder of catheter device 30.
The remainder of catheter device 30 includes handle 31 and flange or stop means 32 connected to the proximal end of insertable catheter portion 33. Handle 31 is made to any convenient diameter and length, in order to be easily grasped and manipulated by a user. If desired, handle 31 is integrally formed with flange 32 and insertable catheter portion 33 as a single structure. Alternatively, one or both of flange 32 and insertable catheter portion 33 are removable from handle portion 31, for example by snaps, threads, etc. If desired, each of the components, i.e. handle 31, flange 32, and insertable catheter portion 33 are formed of stainless steel, various plastics, rubber, or silicone. Of importance, insertable catheter portion 33 is fabricated to have a diameter B within the range of approximately 12 to 18 French, preferably 14 French. (French is the terminology used to describe the circumference of a urinary catheter. French size is equivalent to the circumference of the catheter in millimeters, or 3.14 times the diameter of the catheter in millimeters.) Insertable catheter portion 33 is fabricated to have a length C. In the adult male, length C will range between approximately 18 and 25 cm. In the adult female, length C will range between approximately 4 and 8 cm. The exact measurement will vary from person to person and will be determined during the initial catheterization by a physician, nurse, or professional trained at catheterization to provide an optimal distance for insertion into a user in order to insure that orifice 34 is located within the bladder during use at—an optimum location for draining urine from the bladder and preventing the distal end of insertable catheter portion 33 from entering too deeply into the bladder. Handle 31 is fabricated to have the same diameter or a larger diameter than insertable catheter portion 33. Thus the diameter A of handle 31 is formed in the range of 12 to 36 French, preferably 30 French. Providing handle 31 with a larger diameter than the insertable portion 33 allows handle 31 to be much more easily grasped and manipulated by the user than are prior art catheters, which maintain the diameter of the insertable portion throughout the entire length of the catheter. The length of handle 31 will vary from approximately 3 cm to 6 cm in the male and from approximately 6 cm to 15 cm in the female.
Also of importance, in accordance with the teachings of this invention, catheter device 30 includes flange 32 located between handle 31 and insertable catheter 33. Flange 32 has a thickness E in the range of approximately 0.5 to 1 cm, typically 0.7 cm. Flange 32 also has a diameter D of approximately 1.5 to 3.5 cm, and preferably approximately 2.5 cm. Flange 32 serves as a stop, thereby preventing catheter device 30 from entering into the urethra to a distance greater than C. In this manner, orifice 34 located at the distal end of insertable catheter portion 33 is insured to be located in the optimal portion of the bladder for drainage via catheter, avoiding the problems often encountered with the use of prior art catheters. Specifically, the use of flange 32 allows insertable catheter portion 33 (having length C) to be inserted through the urethra into the bladder to the point just beyond the bladder neck, thereby allowing complete drainage and preventing damage to the bladder wall. Of interest in this embodiment, the use of a flange 32 having a diameter D distinct from the diameter A of handle 31 allows the design of both handle 31 and flange 32 to be optimized for their own specific purposes.
In one embodiment of this invention, flange 32 is slidably adjustable along the length of the catheter so as to provide the appropriate length C of insertable catheter portion 33. In one embodiment of this invention, catheter 30 includes markings in order to provide an indication of a preferred depth of insertion for a particular patient.
As is readily understood by those of ordinary skill in the art, orifice 34 is connected to a channel running through insertable catheter portion 33, flange 32, and handle 31 to an appropriate exit point in handle 31.
In an alternative embodiment of this invention, handle 31 and flange 32 are fabricated to have the same diameter or, in other words, a single portion of catheter device 30 serves as both handle 31 and flange 32. In this embodiment, a diameter is selected which serves as both a useful diameter handle 31 to facilitate grasping and manipulation by the user, and for flange 32 which serves as a stop means defining how deep within the bladder orifice 34 is located. Figure 4 depicts catheter device 30 inserted through urethra 42 into bladder 41 of a female patient. As shown, flange 32 has a diameter sufficiently large to serve as a stop at opening 43 of urethra 42, thereby preventing catheter device 30 from being inserted through urethra 42 into bladder 41 too deeply. Thus, orifice 34 located at the distal end of insertable catheter portion 33 of catheter device 30 is located at approximately the optimal portion of bladder 41 for drainage of urine, i.e. that portion of bladder 41 just beyond bladder neck 41a.
Naturally, the teachings of this invention are widely applicable to catheters of other dimensions, for example, dimensions suitable-for use. ith a child, and for catheters designed for use other than as urethral catheters such as catheterization of a bladder replacement that has an opening on the surface of the abdomen. Furthermore, it is readily understood by those of ordinary skill in the art in light of the teachings of this invention that catheters may be constructed in accordance with the teachings of this invention which are suitable for use with species other than human, for example for veterinary purposes.
In an alternative embodiment of this invention, a handle is provided for receiving and holding a catheter, such as a typical prior art catheter. In this embodiment, a handle alone is provided for accepting a typical catheter which may itself be used with or without the handle. In this manner, the catheter is, for example, inserted partly or entirely through the handle, thereby allowing easy manipulation and proper placement of a standard catheter inside the user. As in the embodiment described above, this embodiment of the invention may optionally include a flange portion of greater diameter than the handle itself, in order to facilitate the stop mechanism for defining the appropriate distance of insertion of the catheter.
In one embodiment of this invention, such handle is provided having a throughbore for accepting a catheter to a predetermined depth within the handle, or completely through the handle. The catheter is held in the handle either by an interference fit, which may be easily provided, particularly if the handle or the inner lining of the conduity within the handle for accepting the catheter is constructed of resilient material. Alternatively, the catheter is held in the handle by means of screws, threads, or the like.
All publications and patent applications cited in this specification are herein incorporated by reference as if each individual publication or patent application were specifically and individually indicated to be incorporated by reference.
Although the foregoing invention has been described in some detail by way of illustration and example for purposes of clarity of understanding, it will be readily apparent to those of ordinary skill in the art in light of the teachings of this invention that certain changes and modifications may be made thereto without departing from the spirit or scope of the appended claims.

Claims

WHAT IS CLAIMED IS;
1. A catheter device comprising: an insertable catheter portion for insertion into a user's body, having a proximal end and a distal end; an orifice located near said distal end of said insertable catheter portion; a channel located within said insertable catheter portion and connected to said orifice; a handle having a diameter over at least a portion of its length which is sufficiently large to prevent entry into the user's body, said handle being connected to said proximal end of said catheter; and a channel located within said handle and connected to said channel of said insertable catheter portion.
2. A catheter device as in claim 1 wherein said handle further comprises a flange located on one end of said handle, said flange having a diameter sufficiently large to prevent its entry into said user's body, wherein said insertable catheter is attached to said handle at said flange and said insertable catheter portion has a length selected to allow said catheter device to be inserted to a desired depth into said user's body.
3. A catheter device as in claim 1 wherein said handle has a substantially constant diameter over its length.
4. A catheter device as in claim 2 wherein said flange is slidably along the length of said catheter device.
5. A catheter device as in claim 4 which further includes the markings along its length to provide an indication of insertion depth.
6. A catheter device as in claim 1 wherein said insertable catheter portion has a length within the range of approximately 18 to 25 cm in the adult male and 4 to 8 cm in the adult female.
7. A catheter device as in claim 1 wherein said insertable catheter portion has a length within the range of approximately 12 to 18 French.
8. A catheter device as in claim 1 wherein said handle has a major portion of its length having a diameter within the range of approximately 12 to 36 French.
9. A catheter device as in claim 1 wherein said handle has a diameter within the range of approximately 1.5 to 3.5 cm.
10. A catheter device as in claim 2 wherein said flange has a length along the axis of said handle within the range of approximately 0.5 to 1 cm.
11. A catheter handle for holding a catheter comprising: a conduit located within said catheter handle for accepting and holding a portion of said catheter; and means for preventing said catheter from being inserted beyond a predefined distance within a user.
12. A catheter handle as in claim 11 wherein said means for preventing is provided by said catheter handle having a portion adjacent the portion of said catheter which is not held by said catheter handle, said portion adjacent having a diameter sufficiently large to prevent its entry into the user.
13. A catheter handle as in claim 12 wherein said portion adjacent comprises a flange having a diameter larger than the diameter of the portion of said catheter handle containing said griping surface.
14. A catheter device as in claim 13 wherein said flange is slidably adjustable along the length of said catheter device.
15. A catheter device as in claim 14 which further includes the markings along its length to provide an indication of insertion depth.
16. A catheter device comprising: an insertable catheter portion for insertion into a user's body, having a proximal end and a distal end; an orifice located near said distal end of said insertable catheter portion; a channel located within said insertable catheter portion and connected to said orifice; a flange having a diameter which is sufficiently large to prevent entry into the user's body, said handle being connected to said proximal end of said insertable catheter portion; and a channel located within said handle and connected to said channel of said insertable catheter portion.
17. A catheter device as in claim 16 wherein said flange is slidably adjustable along the length of said catheter device.
18. A catheter device as in claim 17 which further includes the markings along its length to provide an indication of insertion depth.
PCT/US1990/005481 1989-10-05 1990-09-26 Catheter device with insertion stop means WO1991005577A1 (en)

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US41727589A 1989-10-05 1989-10-05
US417,275 1989-10-05

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5343874A (en) * 1991-09-27 1994-09-06 Applied Medical Technology, Inc. Tract measuring device
US5611778A (en) * 1992-05-14 1997-03-18 Vygon Surgical instrument for performing epidural anesthesia
GB2356816A (en) * 1999-09-16 2001-06-06 Simon Woodhams A urinary catheter for intermittent use by women
US8002766B2 (en) 2001-06-29 2011-08-23 Coloplast A/S Catheter assembly
US8119631B2 (en) 1995-12-20 2012-02-21 Vertex Pharmaceuticals Incorporated Inhibitors of interleukin-1β converting enzyme
US8328792B2 (en) 2005-10-27 2012-12-11 C. R. Bard, Inc. Enhanced pre-wetted intermittent catheter with lubricious coating
US8986286B2 (en) 2001-06-29 2015-03-24 Coloplast A/S Catheter device
US8998882B2 (en) 2013-03-13 2015-04-07 C. R. Bard, Inc. Enhanced pre-wetted intermittent catheter with lubricious coating
US9033149B2 (en) 2010-03-04 2015-05-19 C. R. Bard, Inc. Catheter assembly/package utilizing a hydrating/hydrogel sleeve and a foil outer layer and method of making and using the same
EP1404403B2 (en) † 2001-06-29 2016-10-19 Coloplast A/S A catheter device
US9585784B2 (en) 2011-08-29 2017-03-07 Coloplast A/S Catheter activation by handle removal
US9821139B2 (en) 2009-08-13 2017-11-21 C. R. Bard, Inc. Catheter having internal hydrating fluid storage and/or catheter package using the same and method of making and/or using the same
US10149961B2 (en) 2009-07-29 2018-12-11 C. R. Bard, Inc. Catheter having improved drainage and/or a retractable sleeve and method of using the same
US10912917B2 (en) 2009-12-23 2021-02-09 C. R. Bard, Inc. Catheter assembly/package utilizing a hydrating/hydrogel sleeve and method of making and using the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1436707A (en) * 1921-08-10 1922-11-28 American Platinum Works Adjustable and safety regulating device for hypodermic needles
US3467088A (en) * 1966-12-22 1969-09-16 Ralph R Robinson Intrauterine device inserter
US4498902A (en) * 1982-11-13 1985-02-12 Purdue Research Foundation Catheter guide
US4838879A (en) * 1986-05-08 1989-06-13 Terumo Kabushiki Kaisha Catheter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1436707A (en) * 1921-08-10 1922-11-28 American Platinum Works Adjustable and safety regulating device for hypodermic needles
US3467088A (en) * 1966-12-22 1969-09-16 Ralph R Robinson Intrauterine device inserter
US4498902A (en) * 1982-11-13 1985-02-12 Purdue Research Foundation Catheter guide
US4838879A (en) * 1986-05-08 1989-06-13 Terumo Kabushiki Kaisha Catheter

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5343874A (en) * 1991-09-27 1994-09-06 Applied Medical Technology, Inc. Tract measuring device
US5611778A (en) * 1992-05-14 1997-03-18 Vygon Surgical instrument for performing epidural anesthesia
US8119631B2 (en) 1995-12-20 2012-02-21 Vertex Pharmaceuticals Incorporated Inhibitors of interleukin-1β converting enzyme
GB2356816A (en) * 1999-09-16 2001-06-06 Simon Woodhams A urinary catheter for intermittent use by women
US8002766B2 (en) 2001-06-29 2011-08-23 Coloplast A/S Catheter assembly
US8986286B2 (en) 2001-06-29 2015-03-24 Coloplast A/S Catheter device
US10441454B2 (en) 2001-06-29 2019-10-15 Coloplast A/S Urinary catheter provided as a package
EP1404403B2 (en) † 2001-06-29 2016-10-19 Coloplast A/S A catheter device
US8328792B2 (en) 2005-10-27 2012-12-11 C. R. Bard, Inc. Enhanced pre-wetted intermittent catheter with lubricious coating
US10149961B2 (en) 2009-07-29 2018-12-11 C. R. Bard, Inc. Catheter having improved drainage and/or a retractable sleeve and method of using the same
US9821139B2 (en) 2009-08-13 2017-11-21 C. R. Bard, Inc. Catheter having internal hydrating fluid storage and/or catheter package using the same and method of making and/or using the same
US10912917B2 (en) 2009-12-23 2021-02-09 C. R. Bard, Inc. Catheter assembly/package utilizing a hydrating/hydrogel sleeve and method of making and using the same
US10342952B2 (en) 2010-03-04 2019-07-09 C. R. Bard, Inc. Catheter assembly/package utilizing a hydrating/hydrogel sleeve and a foil outer layer and method of making and using the same
US9731093B2 (en) 2010-03-04 2017-08-15 C. R. Bard, Inc. Catheter assembly/package utilizing a hydrating/hydrogel sleeve and a foil outer layer and method of making and using the same
US9033149B2 (en) 2010-03-04 2015-05-19 C. R. Bard, Inc. Catheter assembly/package utilizing a hydrating/hydrogel sleeve and a foil outer layer and method of making and using the same
US10702671B2 (en) 2010-03-04 2020-07-07 C. R. Bard, Inc. Catheter assembly/package utilizing a hydrating/hydrogel sleeve and a foil outer layer and method of making and using the same
US9585784B2 (en) 2011-08-29 2017-03-07 Coloplast A/S Catheter activation by handle removal
US9694113B2 (en) 2013-03-13 2017-07-04 C. R. Bard, Inc. Enhanced pre-wetted intermittent catheter with lubricious coating
US10518000B2 (en) 2013-03-13 2019-12-31 C. R. Bard, Inc. Enhanced pre-wetted intermittent catheter with lubricious coating
US8998882B2 (en) 2013-03-13 2015-04-07 C. R. Bard, Inc. Enhanced pre-wetted intermittent catheter with lubricious coating

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