WO2005084561A1 - Vascular descaler - Google Patents

Vascular descaler Download PDF

Info

Publication number
WO2005084561A1
WO2005084561A1 PCT/GB2005/000383 GB2005000383W WO2005084561A1 WO 2005084561 A1 WO2005084561 A1 WO 2005084561A1 GB 2005000383 W GB2005000383 W GB 2005000383W WO 2005084561 A1 WO2005084561 A1 WO 2005084561A1
Authority
WO
WIPO (PCT)
Prior art keywords
jet head
catheter
vessel
pump
fluid
Prior art date
Application number
PCT/GB2005/000383
Other languages
French (fr)
Inventor
David Hoyle
Original Assignee
David Hoyle
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 David Hoyle filed Critical David Hoyle
Publication of WO2005084561A1 publication Critical patent/WO2005084561A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3203—Fluid jet cutting instruments
    • A61B17/32037—Fluid jet cutting instruments for removing obstructions from inner organs or blood vessels, e.g. for atherectomy

Definitions

  • the Vascular Descaler consists of two/three main units.
  • a hand held small pressure pump is provided.
  • a nozzle/ jet head A nozzle/ jet head.
  • the catheter and jet head can also be a single disposable unit.
  • the Vascular Descaler is less invasive than conventional treatments, requiring just two small incisions either side of diseased part of the vessel. Once the vessel has been exposed a clamp is then attached to the vessel at a point beyond the diseased area. This is to restrict blood flow while treatment is in progress. An incision is then made to gain entry to the vessel through which the catheter can be inserted. Fluid, is supplied by a conventional giving set, is fed through the hand held pressure pump and into the catheter. The amount of fluid and pressure at which it exit's the jet head must be variable and determined by the amount and structure of plaque needed to be removed from the vessel. The design of the exit holes on the jet head means the fluid will exit the jet head at approximately forty five degrees to the catheter. This will have a three fold effect.
  • the whole procedure should be quick, clean and effective. It should also be less traumatic for the patient than some of the more conventional methods of treating vascular diseases.
  • FIGURE 1 Shows a side angle of the pump.
  • FIGURE 2 Shows the front of pump with catheter and re-usable jet head.
  • FIGURE 3 Shows front of pump with single use catheter and jet head.
  • FIGURE 4 Shows jet head and catheter inside a diseased vessel and the action of the fluid jets against the plaque and artery wall.
  • FIGURE 5 Shows the jet head and catheter inside the diseased vessel with a forward facing fluid breaking up a blockage within the artery wall.
  • FIGURE 6 Shows the jet head at the end of the procedure and the clamp closing the artery.
  • the pump 1 comprises of a fluid inlet valve 2.
  • the pump can be either air or electrically powered 3.
  • the pump also has a flow pressure control 4, a pressure gauge 5 and an threaded outlet valve 6 to which the catheter is attached.
  • the fluid can be seen within the pump chamber 13.
  • the catheter 9 is stong yet flexible, designed to connect at one end with the pump outlet valve through a female threaded connector 8.
  • a threaded male connector 10 at the end of the catheter enables the jet head 11 to be screwed on.
  • Fig 3 shows a single use, disposable catheter and jet head as one single unit
  • Fig 4 shows the catheter and jet head inside the vessel 14.
  • the fluid 13 is being pumped, under pressure, through the catheter, exiting through the jet head and breaking the plaque 15 away from the artery wall.
  • Fig 5 Shows the catheter and jet head inside the vessel.
  • the jet head has a forward facing fluid jet which is breaking into a blockage within the vessel.
  • Fig 6 Shows the jet head approaching the clamped section of the vessel 16.
  • the catheter and jet head are then pulled back to the point of incision dragging the residue back with it. If there is still any substances within the artery the process is repeated.

Abstract

A small hand held high pressure pump (1) connected to a strong flexible catheter (9) and jet head (11). The catheter and jet head can also be a disposable single unit (12). The pump can be air or electrically powered. The whole unit is to be used in the treatment of vascular diseases.

Description

VASCULAR DESCALER
The Vascular Descaler consists of two/three main units.
A hand held small pressure pump.
A strong flexible catheter.
A nozzle/ jet head.
The catheter and jet head can also be a single disposable unit.
The Vascular Descaler is less invasive than conventional treatments, requiring just two small incisions either side of diseased part of the vessel. Once the vessel has been exposed a clamp is then attached to the vessel at a point beyond the diseased area. This is to restrict blood flow while treatment is in progress. An incision is then made to gain entry to the vessel through which the catheter can be inserted. Fluid, is supplied by a conventional giving set, is fed through the hand held pressure pump and into the catheter. The amount of fluid and pressure at which it exit's the jet head must be variable and determined by the amount and structure of plaque needed to be removed from the vessel. The design of the exit holes on the jet head means the fluid will exit the jet head at approximately forty five degrees to the catheter. This will have a three fold effect.
1. It helps pull the catheter through the vessel and around bends.
2. The angle of the fluid hitting the artery wall will dislodge the plaque from the diseased vessel.
3. The back-flow from the fluid jets will flush the debris to the point of incision. TO CLEAR A BLOCKED ARTERY: Same as for descaling vessel except the jet head will also have a fluid exit point in front. Once the procedure has been completed the vessel can be closed and the clamp removed.
All materials used, with the exception of those designed for single use, should be of a material able to stand up to the rigours of sterilization.
The whole procedure should be quick, clean and effective. It should also be less traumatic for the patient than some of the more conventional methods of treating vascular diseases.
A preferred embodiment of the invention will now be described with reference to the accompanying drawings.
FIGURE 1 : Shows a side angle of the pump.
FIGURE 2: Shows the front of pump with catheter and re-usable jet head.
FIGURE 3: Shows front of pump with single use catheter and jet head.
FIGURE 4: Shows jet head and catheter inside a diseased vessel and the action of the fluid jets against the plaque and artery wall. FIGURE 5: Shows the jet head and catheter inside the diseased vessel with a forward facing fluid breaking up a blockage within the artery wall. FIGURE 6: Shows the jet head at the end of the procedure and the clamp closing the artery. As shown in fig 1 the pump 1 comprises of a fluid inlet valve 2. The pump can be either air or electrically powered 3. The pump also has a flow pressure control 4, a pressure gauge 5 and an threaded outlet valve 6 to which the catheter is attached. The fluid can be seen within the pump chamber 13. As shown in fig 2 the catheter 9 is stong yet flexible, designed to connect at one end with the pump outlet valve through a female threaded connector 8. A threaded male connector 10 at the end of the catheter enables the jet head 11 to be screwed on.
Fig 3 shows a single use, disposable catheter and jet head as one single unit
12.
Fig 4 shows the catheter and jet head inside the vessel 14. The fluid 13 is being pumped, under pressure, through the catheter, exiting through the jet head and breaking the plaque 15 away from the artery wall.
Fig 5 Shows the catheter and jet head inside the vessel. The jet head has a forward facing fluid jet which is breaking into a blockage within the vessel.
Fig 6 Shows the jet head approaching the clamped section of the vessel 16.
The catheter and jet head are then pulled back to the point of incision dragging the residue back with it. If there is still any substances within the artery the process is repeated.

Claims

CLAIMS 1. A Vascular Descaler including a pressure pump and catheter component which can be inserted into a human or animal vessel with the intention of forcing a fluid through to the component head, discharging at an angle, volume and pressure requisite to descale, cleanse or unblock a vessel.
PCT/GB2005/000383 2004-02-28 2005-02-02 Vascular descaler WO2005084561A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0404530.8 2004-02-28
GB0404530A GB2411359A (en) 2004-02-28 2004-02-28 Vascular descaler

Publications (1)

Publication Number Publication Date
WO2005084561A1 true WO2005084561A1 (en) 2005-09-15

Family

ID=32051094

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/000383 WO2005084561A1 (en) 2004-02-28 2005-02-02 Vascular descaler

Country Status (2)

Country Link
GB (1) GB2411359A (en)
WO (1) WO2005084561A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3421390A1 (en) * 1984-06-08 1985-12-12 Werner Dr.med. 4330 Mülheim Schubert High-pressure catheter with a cutting and/or abrasion device
US4898574A (en) * 1986-05-08 1990-02-06 Olympus Optical Co., Ltd. Lithotomic apparatus
US5135482A (en) * 1985-12-31 1992-08-04 Arnold Neracher Hydrodynamic device for the elimination of an organic deposit obstructing a vessel of a human body
EP1092396A2 (en) * 1999-10-13 2001-04-18 Possis Medical, Inc. Crossflow thrombectomy catheter and system
WO2002026289A1 (en) * 2000-09-28 2002-04-04 Beck Robert C Catheter system
US20020068895A1 (en) * 1999-12-10 2002-06-06 Beck Robert C. Interventional device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8426270U1 (en) * 1984-09-06 1985-02-14 Veltrup, Elmar Michael, Dipl.-Ing., 4150 Krefeld DEVICE FOR REMOVING SOLID BODIES OR DEPOSITS FROM BODY VESSELS
CH676426A5 (en) * 1988-09-27 1991-01-31 Schneider Shiley Ag
AU6450198A (en) * 1997-03-06 1998-09-22 Percusurge, Inc. Catheter system for containing and removing vascular occlusions
JP2003260127A (en) * 2002-03-10 2003-09-16 Nippon Clean Engine Lab Co Ltd Suction method by pressurized reverse jet supply of fluid and apparatus therefor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3421390A1 (en) * 1984-06-08 1985-12-12 Werner Dr.med. 4330 Mülheim Schubert High-pressure catheter with a cutting and/or abrasion device
US5135482A (en) * 1985-12-31 1992-08-04 Arnold Neracher Hydrodynamic device for the elimination of an organic deposit obstructing a vessel of a human body
US4898574A (en) * 1986-05-08 1990-02-06 Olympus Optical Co., Ltd. Lithotomic apparatus
EP1092396A2 (en) * 1999-10-13 2001-04-18 Possis Medical, Inc. Crossflow thrombectomy catheter and system
US20020068895A1 (en) * 1999-12-10 2002-06-06 Beck Robert C. Interventional device
WO2002026289A1 (en) * 2000-09-28 2002-04-04 Beck Robert C Catheter system

Also Published As

Publication number Publication date
GB0404530D0 (en) 2004-03-31
GB2411359A (en) 2005-08-31

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