WO2003082394A1 - Biopsy instrument - Google Patents
Biopsy instrument Download PDFInfo
- Publication number
- WO2003082394A1 WO2003082394A1 PCT/EP2003/003390 EP0303390W WO03082394A1 WO 2003082394 A1 WO2003082394 A1 WO 2003082394A1 EP 0303390 W EP0303390 W EP 0303390W WO 03082394 A1 WO03082394 A1 WO 03082394A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- catheter
- channel
- distal end
- guided
- working
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/04—Endoscopic instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/06—Biopsy forceps, e.g. with cup-shaped jaws
-
- 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
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/003—Steerable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
- A61B2017/3445—Cannulas used as instrument channel for multiple instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/361—Image-producing devices, e.g. surgical cameras
-
- 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
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M2025/0163—Looped catheters
Definitions
- a biopsy instrument A biopsy instrument
- the invention relates to a biopsy instrument with which tissue samples are taken from a living organism for examination purposes.
- biopsy forceps are known, in which movements of a handle are transmitted to the forceps parts of the forceps provided at the distal end of the shaft via tension and pressure elements which are guided through a shaft.
- the object of the invention is to create a biopsy instrument with which the biopsy forceps can be moved and rotated in a controlled manner while continuously observing the working space in which tissue samples are taken with the biopsy forceps.
- This biopsy instrument has a multi-channel catheter, in particular made of bendable material, at the proximal end of which a working socket with different inputs for the channels of the catheter is provided.
- One of these channels is designed as a working channel, at the distal end of which a biopsy forceps, which has a larger dimension than the diameter of the working channel, can be arranged.
- the jaw parts of the biopsy forceps are transmission transmission device, which in particular can transmit tensile and compressive forces.
- the elongated, in particular rod-shaped and preferably bendable, motion transmission device can be inserted into the working channel from the distal end of the working channel and extends up to the assigned input of the working channel on the working nozzle, which is provided at the proximal end of the catheter.
- a preferably manually operable actuating device is provided, which is connected to the proximal end of the motion transmission device which is guided through the working channel.
- the actuating device generates the tensile and compressive forces acting on the jaw parts. These forces are transmitted from the motion transmission device to the forceps parts of the biopsy forceps.
- the actuating device is preferably detachably connected to the proximal end of the movement transmission device. In this way, the biopsy forceps can be exchanged for the respective tissue sample withdrawals.
- observation optical system is guided in another channel (optical channel) of the catheter.
- the observation optics can contain an illumination device for illuminating the work space, in which the tissue samples are removed with the biopsy forceps.
- the observation optics can be connected to an eyepiece or to a reproduction device with a camera and monitor.
- a control mechanism is guided in a separate control channel of the catheter, which is connected at the proximal end to a hand-operated control device and which is connected at its distal end to the distal end of the catheter.
- Rotational movements and pulling and pushing movements, which are generated by the proximal control device, are controlled by the control Mechanism transferred to the distal end of the catheter so that it is bendable transversely to the catheter axis and rotatable about the catheter axis.
- An irrigation channel open at the distal end also extends through the catheter.
- the flushing channel is connected to a flushing system at its inlet provided on the working nozzle.
- the biopsy instrument according to the invention can be used as a papillotome (three-lumen papilloto).
- Biopsy instrument which is an embodiment of the invention; 2 shows a section along a section line II
- FIG. 4 shows the distal end of the catheter to explain the mode of operation of the control device.
- the biopsy instrument shown as an exemplary embodiment in the figures contains a catheter 1, which preferably consists of a bendable material.
- Four channels extend in the longitudinal direction in the catheter. This is a working channel 3, an optics channel 4, a rinsing channel 5 and a control channel 6.
- a biopsy forceps 8 is located at the distal end of the working channel 3.
- the biopsy forceps 8 has jaw parts whose dimensions transversely to the longitudinal direction of the working channel 3 are larger than the diameter of the working channel 3.
- the jaw parts of the forceps can be designed like spoons with large spoon bulbs.
- the jaw parts of the biopsy forceps 8 are connected to the distal end of a movement transmission device 7. This movement transmission device 7 extends through the working channel 3.
- the movement transmission device 7 can be designed in a known manner as a pull / push rod or as a Bowden cable and movements which are generated by an actuating device 13 for the biopsy forceps on the jaw parts of the biopsy forceps 8 transferred.
- the movement transmission device 7 extends through the working channel 3.
- the actuating device 13 is connected to the proximal end of the movement transmission device 7.
- a working socket 2 which has four different entrances for the channels running longitudinally in the catheter 1. It is an input 9 for the working channel, an input 10 for the optics channel, an input 11 for the rinsing channel and an input 12 for the control channel.
- the actuating device 13 is preferably detachably connected to the proximal end of the movement transmission device 7. This makes it possible to insert the movement transmission device 7 into the catheter 1 from the distal end through the working channel 3. This allows the use of a biopsy forceps with dimensions larger than the diameter of the working channel 3.
- an observation optical unit 14 which is connected to an observation device 15 via corresponding optical fibers that extend through the optical channel 4.
- the observation device 15 preferably has an illumination system for illuminating the work space in which the biopsy forceps 8 is used.
- the observation device 15 can have an eyepiece.
- the observation device 15 preferably has a reproduction system which is equipped with a camera and monitor in a known manner. At the input 10, the observation device 15 is connected to the observation optics 14 guided through the optics channel 4.
- a flushing device 19 is connected to the inlet 11 for the flushing channel 5.
- the rinsing channel 5 is open at the distal end of the catheter 1 and is used to rinse the work space in which the tissue samples are removed with the biopsy forceps.
- the illustrated embodiment of the biopsy instrument also includes a control device 16 which can be operated by hand. With the control device 16, tensile forces can be transmitted to the distal end of the catheter 1 via a wire-shaped adjusting element 17.
- the wire-shaped adjusting element 17 is firmly connected to the distal end of the catheter 1 in a connection point 18.
- the wire-shaped adjusting element 17 extends up to an opening 20 through the control channel 6. At the opening 20, the control channel 6 opens onto the outside of the catheter 1.
- the wire-shaped adjusting element 17 extends from the opening 20 to the connection point 18 on the outside of the catheter 1, as shown in Figure 1.
- the catheter 1 with the distal, axial region in which the adjusting element 17 is guided on the outside of the catheter 1 can be bent transversely to the longitudinal axis of the catheter 1.
- a rotation about the axis of the catheter 1 is also possible. Both the bending of the axial, distal end piece of the catheter 1 and the rotation are effected by the control device 16.
- the movement is transmitted from the control device 16 to the distal end of the catheter 1 with the aid of the wire-shaped actuating element 17.
- the biopsy forceps 8 and the observation optics 14 likewise perform these controlled movements of the distal end of the catheter. This results in a controllable and rotatable biopsy forceps with simultaneous observation of the work space in which the biopsy forceps 8 is operated.
- the control element 17 is preferably designed to be torsionally rigid in its longitudinal extent and guided in the control channel 6 so that it can rotate.
- the control mechanism and the control device are preferably designed as described in DE 100 45 036 AI.
- the control element 17 is guided in the longitudinal direction in the control channel 6.
- the control channel 6 has an outer diameter of, for example, 0.6 mm and an inner diameter of 0.4 mm.
- the adjusting element 17 is largely designed as a tube 21 with a wall thickness of approximately 0.16 mm.
- the inner diameter can be, for example, 0.2 mm and the outer diameter 0.36 mm.
- the actuator is preferably made of metal. This configuration of the actuating element 17 achieves a torsionally rigid design about its longitudinal axis 23 over its entire length.
- the torque applied is transmitted exactly to the distal end 22, since the actuating element 5 is designed to be torsionally rigid about its longitudinal axis 23 over its entire length.
- the tube 21 extends the substantial part of the length of the catheter and can have a length of about 1.70 m or more.
- the proximal end 24 of the actuating element 17 is connected via a connecting piece 25 to the control device 16 for an axial displacement (double arrow 26 in FIG. 4) and rotation (double arrow 27 in FIG. 4).
- the distal end 22 of the tubular part 21 of the actuating element 17 is connected to a flexible shaft 29 via a connecting sleeve 28.
- the flexible shaft 29 thus forms an extension of tubular part 21 of the actuating element 17.
- the flexible shaft 29 is guided outwards through the opening 20 in the catheter 1 and extends on the outside of the catheter in the longitudinal direction of the catheter. In the area of the distal end of the catheter, the flexible shaft 29 is firmly connected to the catheter in the connection point 18.
- the length of the flexible shaft 29 corresponds to slightly more than the length of the catheter part to be bent according to FIG. 4 and can be approximately 6 cm, with a length of 3.0 cm to 3.5 cm, in particular 3.2 cm, being guided outside the probe 2 are.
- the tube 21 and the associated flexible shaft 29 are mounted on the catheter 1 so as to be displaceable in the longitudinal direction.
- the connecting sleeve 28 from the end of the control channel 6 a corresponding distance of z. B. have about 4 cm. If a pull is exerted on the control element 17 and the flexible shaft 29 by means of the control device 16, the distal end of the catheter is bent, as shown in FIG. 4.
- the adjusting element 17 and the associated flexible shaft 29 are in the longitudinal direction of the catheter 1 is slidably mounted, as is illustrated by the double arrow 26 in FIG. 4.
- tubular part 21 of the actuating element 17 and the flexible shaft 29 are rotatably mounted about the axis 23.
- the axis 23 is angled in the region of the flexible shaft 29. If a torque is transmitted to the tubular part 21 of the actuating element 17 via the connecting piece 25 by means of the control device 16, this torque is transmitted to the flexible shaft 29 by the axially torsionally rigid design of the tubular part 21, so that the flexible shaft 29 also is rotated about the axis 23.
- These rotary movements are illustrated in FIG. 4 by the double arrows 27, 29.
- control of the movement of the distal end of the catheter transversely to the axis of the catheter and a rotation of the end of the catheter are controlled with the aid of the control device 16, which is manually operated at the proximal end hen of the catheter, especially in the region of its distal end.
- the observation optics 14 and the biopsy forceps 8 are carried along.
- the actuating element 17 is designed at least partially, but over the largest part of its longitudinal extent as a thin tube 21. A torque applied at the proximal end of the adjusting element 17 is transmitted exactly to the distal end. Due to the tubular shape, the control element 17 is designed to be torsionally rigid over its entire length.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003236833A AU2003236833A1 (en) | 2002-04-03 | 2003-04-01 | Biopsy instrument |
DE10391070T DE10391070D2 (en) | 2002-04-03 | 2003-04-01 | A biopsy instrument |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20205190.0 | 2002-04-03 | ||
DE20205190U DE20205190U1 (en) | 2002-04-03 | 2002-04-03 | A biopsy instrument |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003082394A1 true WO2003082394A1 (en) | 2003-10-09 |
Family
ID=7969638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/003390 WO2003082394A1 (en) | 2002-04-03 | 2003-04-01 | Biopsy instrument |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2003236833A1 (en) |
DE (2) | DE20205190U1 (en) |
WO (1) | WO2003082394A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7901441B2 (en) | 2005-10-18 | 2011-03-08 | Boston Scientific Scimed, Inc. | Method of using an imaging catheter to conduct photodynamic procedures |
US7922654B2 (en) | 2004-08-09 | 2011-04-12 | Boston Scientific Scimed, Inc. | Fiber optic imaging catheter |
US9339173B2 (en) | 2004-03-23 | 2016-05-17 | Boston Scientific Scimed, Inc. | In-vivo visualization system |
US10863889B2 (en) | 2007-08-23 | 2020-12-15 | Polydiagnost Entwicklungs—, Produktions—, Vertriebs—, Und Service GmbH | Modular endoscope |
US11819192B2 (en) | 2004-03-23 | 2023-11-21 | Boston Scientific Scimed, Inc. | In-vivo visualization system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2598710A (en) * | 2020-08-05 | 2022-03-16 | Creo Medical Ltd | Catheter and catheter kit including such catheter |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5409453A (en) * | 1992-08-12 | 1995-04-25 | Vidamed, Inc. | Steerable medical probe with stylets |
WO1999045847A1 (en) * | 1998-03-09 | 1999-09-16 | Spectrascience, Inc. | Optical biopsy forceps system and method of sampling tissue |
WO1999060924A1 (en) * | 1998-05-26 | 1999-12-02 | Comedicus Incorporated | Intrapericardial procedures and apparatuses |
-
2002
- 2002-04-03 DE DE20205190U patent/DE20205190U1/en not_active Expired - Lifetime
-
2003
- 2003-04-01 AU AU2003236833A patent/AU2003236833A1/en not_active Abandoned
- 2003-04-01 WO PCT/EP2003/003390 patent/WO2003082394A1/en not_active Application Discontinuation
- 2003-04-01 DE DE10391070T patent/DE10391070D2/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5409453A (en) * | 1992-08-12 | 1995-04-25 | Vidamed, Inc. | Steerable medical probe with stylets |
WO1999045847A1 (en) * | 1998-03-09 | 1999-09-16 | Spectrascience, Inc. | Optical biopsy forceps system and method of sampling tissue |
WO1999060924A1 (en) * | 1998-05-26 | 1999-12-02 | Comedicus Incorporated | Intrapericardial procedures and apparatuses |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9339173B2 (en) | 2004-03-23 | 2016-05-17 | Boston Scientific Scimed, Inc. | In-vivo visualization system |
US11064869B2 (en) | 2004-03-23 | 2021-07-20 | Boston Scientific Scimed, Inc. | In-vivo visualization system |
US11819192B2 (en) | 2004-03-23 | 2023-11-21 | Boston Scientific Scimed, Inc. | In-vivo visualization system |
US11832793B2 (en) | 2004-03-23 | 2023-12-05 | Boston Scientific Scimed, Inc. | Vivo visualization system |
US7922654B2 (en) | 2004-08-09 | 2011-04-12 | Boston Scientific Scimed, Inc. | Fiber optic imaging catheter |
US9215970B2 (en) | 2004-08-09 | 2015-12-22 | Boston Scientific Scimed, Inc. | Fiber optic imaging catheter |
US10058236B2 (en) | 2004-08-09 | 2018-08-28 | Boston Scientific Scimed, Inc. | Fiber optic imaging catheter |
US7901441B2 (en) | 2005-10-18 | 2011-03-08 | Boston Scientific Scimed, Inc. | Method of using an imaging catheter to conduct photodynamic procedures |
US10863889B2 (en) | 2007-08-23 | 2020-12-15 | Polydiagnost Entwicklungs—, Produktions—, Vertriebs—, Und Service GmbH | Modular endoscope |
Also Published As
Publication number | Publication date |
---|---|
AU2003236833A1 (en) | 2003-10-13 |
DE20205190U1 (en) | 2002-07-04 |
DE10391070D2 (en) | 2005-02-17 |
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