WO2005062696A2 - Device for protection and extension of urethra - Google Patents

Device for protection and extension of urethra Download PDF

Info

Publication number
WO2005062696A2
WO2005062696A2 PCT/HR2004/000066 HR2004000066W WO2005062696A2 WO 2005062696 A2 WO2005062696 A2 WO 2005062696A2 HR 2004000066 W HR2004000066 W HR 2004000066W WO 2005062696 A2 WO2005062696 A2 WO 2005062696A2
Authority
WO
WIPO (PCT)
Prior art keywords
urethra
protector
rubber
wideners
wires
Prior art date
Application number
PCT/HR2004/000066
Other languages
French (fr)
Inventor
Tesevic Pavle
Original Assignee
Tesevic Pavle
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from HR20031094A external-priority patent/HRP20031094B1/en
Priority claimed from HR20031093A external-priority patent/HRP20031093B1/en
Application filed by Tesevic Pavle filed Critical Tesevic Pavle
Publication of WO2005062696A2 publication Critical patent/WO2005062696A2/en

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
    • A61M29/00—Dilators with or without means for introducing media, e.g. remedies
    • A61M29/02—Dilators made of swellable material
    • 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
    • A61M25/0017—Catheters; Hollow probes specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00142—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with means for preventing contamination, e.g. by using a sanitary sheath
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/307—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the urinary organs, e.g. urethroscopes, cystoscopes

Definitions

  • the invention is a device that facilitates the examination and treatment of the urinary tract, but with minor alterations it might find application in broader medicine.
  • Inserting of instruments in the urinary tract is often difficult and especially so in the narrowed urethra in male patients.
  • the narrowing causes frequent and difficult urinating, and culminates in the patient being incapable of urinating at all.
  • Side effects include weakening of the bladder, kidneys etc.
  • This invention can be carried through in several variants.
  • the protector is inserted painlessly and as deeply as needed. Its diameter is 3-4 mm and it is elastic.
  • the inner side of the protector is lined with vertically placed wires, while the outside is coated into rubber.
  • the cylindrical part of the protector is inserted into urethra, and the cone- shaped part becomes the handle.
  • the tube of the cystoscope is inserted through the handle and the cone-shaped part of the protector.
  • the tube divides the wires inside the protector, without disturbing their circular arrangement.
  • the wires widen the rubber coat of the protector, thus widening the urethra itself, making it possible for the tube of the cystoscope to enter the urethra smoothly and easily.
  • the protector provides the barrier between the cystoscope and the urethra. The force produced by the horizontal movement of the cystoscope along the wires is small, while the radial force is flexibly transferred from the wires to the rubber cover, which in turn extends the urethra as far as the plasticity of the material allows it.
  • the protector is inserted with ellipsoidal wideners whose diameter varies between 3 to 9 mm (fig. 5 and 6).
  • the shape of the wideners makes it possible for them to pass through the cylindrical part of the protector, and different-depth grooves keep the circular arrangement of the wires constant and widen the narrowed part of the urethra.
  • the instrument is composed of the following parts:
  • Figure 1 is the blueprint of the protector of the urethra (without the cylindrical insert)
  • Figure 2 is the 3D image of the protector of me urethra
  • Figure 3 is the 3D image of the cylindrical insert
  • Figure 4 is the cross section of the cylindrical part with the cylindrical insert
  • Figure 5 is the blueprint of the ellipsoidal widener with the handle Figure 6 is the 3D image of the widener Figure 7 is the 3D image of the protector in use
  • the cylindrical insert is not featured in fig. 1, but separately in fig. 3, since it does not participate in the application of the device, but helps in storing it and is removed immediately before the device is put to use.
  • Figures 1, 2 show the protector of the urethra, while fig. 4 shows its cross section at the cylindrical part.
  • the rim is composed of the circular arrangement of the inner wires (10), which are connected, to the rubber cover (20), forming a whole. NvTien the protector is not used, the circular arrangement of the wires (without the rubber) is maintained by the cylindrical insert
  • the cone-shaped part of the wire net (11) facilitates the initial insertion of the cystoscope into the protector.
  • the rubber part is reinforced at the beginning (22), which hosts the ends of the wires.
  • the spherical shape of the rubber cover facilitates the insertion of the cystoscope into the urethra.
  • the back part of the rubber cover is reinforced by a rubber ring (12), which is inserted into the groove of the handle (21) and maintains the vertical tension of the protector.
  • the rest of the rubber cover is meant to protect the urethra.
  • the total length of the protector is 35 cm, but can be lengthened up to 60 cm.
  • the kit contains four wideners, with the diameters of 3, 5, 7 and 9 mm.
  • the front part of the widener is ellipsoidal (30) and in its rim there are grooves of different depth (34), which help keep the wires in the circular arrangement while the wideners are being inserted into the protector.
  • In the centre of the widener there is an opening whose diameter is 1mm, (33), which takes away residual air.
  • the invention is meant to be an aid in treatment of the urinary tract in hospitals and other medical institutions where cystoscopy and other tests are done.
  • the rubber cover is separate from the wire net, and is put on immediately before the use.
  • Such a protector would serve only for widening and monitoring of the urethra, and its front, reinforced part would be closed. Under the initial supervision of a doctor, it could be used by patients.
  • the users who have equipment for the outer monitoring of the insertion of the protector into the urether might use a longer variant of the device.
  • the parts of the device would be kept in separate sterile packaging. Most of the parts would be disposable.

Abstract

The device for the protection and extension of the urethra is composed of the protector and the ellipsoidal wideners. The protector is composed of the wires that form a circular wire and are connected to the rubber cover. The front part of the protector is cylindrical in shape, and the back part is cone-shaped. Before the cystoscopy, the cylindrical part which is inserted into the urethra is 4mm in the diameter. This facilitates the insertion of the tube into the urethra, since the protector prevents immediate friction between the cystoscope tube and the urethra. The protector can be inserted by the ellipsoidal wideners of various diameters. Urethra is thus mechanically widened, which facilitates the treatment of urinating difficulties that are caused by the narrowing of the urethra. The structure of the device is simple and its manufacturing would not be expensive. The rubber part would be manufactured from latex (rubber used for the manufacturing of medical gloves). Other parts would be made of hard and flexible plastic. The protector would come in several variants depending on the requirements of the users.

Description

DEVICE FORPROTECTIONANDEXTENSION OFTHE URETHRA
DESCRIPTION
The field of application of the invention
The invention is a device that facilitates the examination and treatment of the urinary tract, but with minor alterations it might find application in broader medicine.
Technical problem
Inserting of instruments in the urinary tract is often difficult and especially so in the narrowed urethra in male patients. The narrowing causes frequent and difficult urinating, and culminates in the patient being incapable of urinating at all. Side effects include weakening of the bladder, kidneys etc.
Background of the invention
There are multiple kinds of treatment of this problem: drug treatment, operations and other interventions. The best results are obtained through laser widening, but in some patients the illness can restitute causing the need for a new intervention. Inserting of a cystoscope, whether hard or flexible, is still not handled satisfactorily.
Summary of the invention
This invention can be carried through in several variants.
Before inserting the tube of the cystoscope, the urethra is inserted with a protector (fig. 1, 2 and
4). The protector is inserted painlessly and as deeply as needed. Its diameter is 3-4 mm and it is elastic. The inner side of the protector is lined with vertically placed wires, while the outside is coated into rubber. The cylindrical part of the protector is inserted into urethra, and the cone- shaped part becomes the handle.
The tube of the cystoscope is inserted through the handle and the cone-shaped part of the protector. The tube divides the wires inside the protector, without disturbing their circular arrangement. The wires widen the rubber coat of the protector, thus widening the urethra itself, making it possible for the tube of the cystoscope to enter the urethra smoothly and easily. The protector provides the barrier between the cystoscope and the urethra. The force produced by the horizontal movement of the cystoscope along the wires is small, while the radial force is flexibly transferred from the wires to the rubber cover, which in turn extends the urethra as far as the plasticity of the material allows it.
If for some reason the urethra has to be extended or its width controlled, instead of the tube of the cystoscope, the protector is inserted with ellipsoidal wideners whose diameter varies between 3 to 9 mm (fig. 5 and 6). The shape of the wideners makes it possible for them to pass through the cylindrical part of the protector, and different-depth grooves keep the circular arrangement of the wires constant and widen the narrowed part of the urethra. . The instrument is composed of the following parts:
- the protector of the urethra (fig. 1, 2, 4 and 7)
- ellipsoidal wideners (fig. 5, 6 and 7) ,
- cylindrical insert (fig. 2, 3 and 4). , . .
Brief description of the drawings
The figures included in the description of the invention help explain the basic principles of the invention's functions. Figure 1 is the blueprint of the protector of the urethra (without the cylindrical insert)
Figure 2 is the 3D image of the protector of me urethra
Figure 3 is the 3D image of the cylindrical insert
Figure 4 is the cross section of the cylindrical part with the cylindrical insert
Figure 5 is the blueprint of the ellipsoidal widener with the handle Figure 6 is the 3D image of the widener Figure 7 is the 3D image of the protector in use
The cylindrical insert is not featured in fig. 1, but separately in fig. 3, since it does not participate in the application of the device, but helps in storing it and is removed immediately before the device is put to use.
Detailed description of the preferred embodiment
Figures 1, 2 show the protector of the urethra, while fig. 4 shows its cross section at the cylindrical part. The rim is composed of the circular arrangement of the inner wires (10), which are connected, to the rubber cover (20), forming a whole. NvTien the protector is not used, the circular arrangement of the wires (without the rubber) is maintained by the cylindrical insert
(15).
The cone-shaped part of the wire net (11) facilitates the initial insertion of the cystoscope into the protector. The rubber part is reinforced at the beginning (22), which hosts the ends of the wires. The spherical shape of the rubber cover facilitates the insertion of the cystoscope into the urethra. The back part of the rubber cover is reinforced by a rubber ring (12), which is inserted into the groove of the handle (21) and maintains the vertical tension of the protector. The rest of the rubber cover is meant to protect the urethra. The total length of the protector is 35 cm, but can be lengthened up to 60 cm.
The kit contains four wideners, with the diameters of 3, 5, 7 and 9 mm. The front part of the widener is ellipsoidal (30) and in its rim there are grooves of different depth (34), which help keep the wires in the circular arrangement while the wideners are being inserted into the protector. In the centre of the widener there is an opening whose diameter is 1mm, (33), which takes away residual air.
Application of the invention
The invention is meant to be an aid in treatment of the urinary tract in hospitals and other medical institutions where cystoscopy and other tests are done. In one of the variants of the realization of the protector of the urethra, the rubber cover is separate from the wire net, and is put on immediately before the use. Such a protector would serve only for widening and monitoring of the urethra, and its front, reinforced part would be closed. Under the initial supervision of a doctor, it could be used by patients. , The users who have equipment for the outer monitoring of the insertion of the protector into the urether might use a longer variant of the device.
The parts of the device would be kept in separate sterile packaging. Most of the parts would be disposable.

Claims

l.The device for the protection and the extension of the urethra is composed of the protector and the ellipsoidal wideners. The back part of the wire net together with the cone-shaped rubber cover facilitates the insertion of the cystoscope tube and maintains the regular arrangement of the wires up to the insertion of the tube into the cylindrical part. The widening is transferred to the rubber protective cover with the minimal friction along the length of the urethra, widening it to the limits of its flexibility. Wherein the device is being able to painlessly widen the urethra, thus replacing operations and other painful widening techniques.
2. According to the claim 1, wherein the rubber cover is being vertically connected to the wire net, thus maintaining the circular arrangement of the wires and forming the outer protective cover. Its hardness and flexibility makes it possible for the cystoscope tubes to pass more easily through the urethra.
3. According to the claim 1, wherein the front part of the rubber cover is being cone-shaped and is reinforced so that it is easily inserted into the urethra. The front reinforced part serves as the base for the front part of the wire net. Together with the rubber ring in the back, it maintains the vertical tension of the rubber.
4. According to the claim 1, wherein the wideners are being ellipsoidal, and having at the rim the grooves of variable depth. The grooves help in moving the widener along the wires during the extension. The wideners are 3, 5, 7 and 9 mm in the diameter. In the center they have a lmm-diameter opening which takes away residual air during the application of the device. ,
PCT/HR2004/000066 2003-12-30 2004-12-23 Device for protection and extension of urethra WO2005062696A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
HRP20031093A 2003-12-30
HR20031094A HRP20031094B1 (en) 2003-12-30 2003-12-30 Device for protection and txtension of urethra
HR20031093A HRP20031093B1 (en) 2003-12-30 2003-12-30 Device for extending the urethra
HRP20031094A 2003-12-30

Publications (1)

Publication Number Publication Date
WO2005062696A2 true WO2005062696A2 (en) 2005-07-14

Family

ID=34740775

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HR2004/000066 WO2005062696A2 (en) 2003-12-30 2004-12-23 Device for protection and extension of urethra

Country Status (1)

Country Link
WO (1) WO2005062696A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014099873A1 (en) * 2012-12-18 2014-06-26 Mayo Foundation For Medical Education And Research Penile surgery systems and methods

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014099873A1 (en) * 2012-12-18 2014-06-26 Mayo Foundation For Medical Education And Research Penile surgery systems and methods
US9867705B2 (en) 2012-12-18 2018-01-16 Mayo Foundation For Medical Education And Research Penile surgery systems and methods

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