WO2002067780A1 - Positioning instrument and use of a probe - Google Patents
Positioning instrument and use of a probe Download PDFInfo
- Publication number
- WO2002067780A1 WO2002067780A1 PCT/EP2002/002037 EP0202037W WO02067780A1 WO 2002067780 A1 WO2002067780 A1 WO 2002067780A1 EP 0202037 W EP0202037 W EP 0202037W WO 02067780 A1 WO02067780 A1 WO 02067780A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cannula
- anchoring element
- handle
- opening
- positioning set
- Prior art date
Links
Classifications
-
- 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
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
-
- 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
- A61B2017/00349—Needle-like instruments having hook or barb-like gripping means, e.g. for grasping suture or tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
-
- 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
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
- A61B2090/3904—Markers, e.g. radio-opaque or breast lesions markers specially adapted for marking specified tissue
- A61B2090/3908—Soft tissue, e.g. breast tissue
Definitions
- the invention relates to a positioning set, in particular for the correct positioning or fixing of a tissue area or an organ of a living being, such as correct holding of a prostate, comprising a cannula with an axially displaceable dralite or needle-shaped anchoring element, which can be moved by relative displacement to the cannula Section passes through an opening of the cannula for positioning the tissue area or the organ or runs with the section within the cannula, the anchoring element consisting of a shape memory material or a material containing the same with its free distal end automatically emerging from the opening of the cannula takes an arcuate or hook-shaped course.
- the invention further relates to the use of a probe.
- a needle for location determination in which a needle element is displaceable within an outer cannula, from which a hook section extending in lease has its proximal end, which passes through a lateral opening when the needle element is withdrawn from the cannula, at z. B. to be fixed in the breast tissue. Since on the one hand the opening penetrated by the hook element runs at a distance from the tip of the cannula and on the other hand it is only possible to move the hook element out of the cannula by pulling the needle element out of the cannula, the hook element must be fixed precisely and thus the tissue area or the Organ not always possible. Another disadvantage is that the cannula has to be inserted into the tissue or the organ to a considerable extent in order to fix the hook element in the tissue or in the organ. From a medical point of view, this is often undesirable or possibly not possible.
- a probe for localizing a pathological tissue section is known from 36 90 135 C2.
- the probe consists of a substantially straight, tubular needle cannula for insertion into the tissue section and a probe wire which is designed as a memory hook at the end.
- a surgical instrument for marking a tissue is known from US Pat. No. 5,879,357, in which a marker crimped around a cable can be guided through a cannula.
- the cable itself starts from a cylinder element that can be moved within the cannula.
- a rod element with a tip can be displaced within a cannula.
- the rod element has an expandable section which passes through a recess in the cannula when the rod element is withdrawn.
- twisted wire strands can be displaced in a cannula, the wire strands being barb-shaped in their distal ends.
- a catheter with a variable number of lumens is known from DE 692 29 721 T2 (EP 0 570 530 BI).
- a surgical instrument for marking pathological tissue changes which has a stylet which is displaceably arranged in a cannula which in turn is received by a guide tube.
- an anchor element can be arranged in the distal region of a cannula, which is connected to an element running outside the cannula.
- the present invention is based on the problem of developing a positioning set of the type mentioned at the outset in such a way that a tissue area or an organ can be positioned extremely precisely, in order, for example, B. can then use a further cannula to deposit a medical substance such as a radioactive pellet without it being absolutely necessary for the cannula itself to penetrate into the tissue area or the organ. Furthermore, it should be ensured that the risk of injuries to the positioned tissue area or the organ is eliminated or at least minimized when the positioning is correct.
- the problem is essentially solved in that the anchoring element is surrounded by a tubular guide element essentially except for its free distal end which penetrates the opening of the cannula.
- the guide element ensures that the anchoring element, which is in particular wire or needle-shaped, cannot move uncontrollably within the cannula.
- the anchoring element which is in particular wire or needle-shaped
- there is a low-friction displacement along the inner wall of the cannula an advantage that is not given when the wire or needle-shaped Anchoring element would be freely movable in the cannula; in this case, the anchoring element could abut the inner wall in the cannula over many areas, as a result of which increased friction could occur.
- An undulating shortening of the anchoring element could also occur due to a wave-shaped course of the anchoring element within the cannula, with the result that the anchoring element cannot be pushed out of the cannula to the required extent via its opening.
- metal alloys or polymeric materials can be used as shape memory material for the anchoring element.
- metal alloys which are also referred to as shape memory alloys, nickel-titanium or copper-zinc-aluminum or gold-cadmium alloys or those based on iron such as iron-manganese-silicon alloys are preferred.
- the use of the shape memory material has the advantage that the section emerging from the opening shows a predeterminable desired course when it is pulled out as when it is pulled in. This in turn means that the section remains within the puncture channel when withdrawing from the tissue material or the organ, so that injuries are excluded.
- the anchoring element is essentially surrounded by the guide element like a tube, except for its distal end which penetrates the opening of the cannula, the anchoring element and guide element being connected to one another in a non-positive and / or positive manner, to rule out a relative movement between them.
- the guide element and the anchoring element are preferably connected to one another by squeezing.
- the cannula proximally has a first handle and the anchoring element or the guide element surrounding it proximally has a second handle, that the anchoring element or guide element axially penetrates the first handle and that between the first handle a spacer element can be arranged, with the spacer element arranged between the first and the second handle, the anchoring element with its distal end extending completely inside the cannula and, with the spacer element removed, the anchoring element in this way to the cannula
- the first handle can have an opening which is open in the direction of the second handle and into which the second handle can be introduced in certain areas. This enables a clear fixation between the cannula and the anchoring element.
- the cutout preferably has a hollow cylindrical shape with a flattened surface and the portion of the second handle that can be inserted into it correspondingly has a cylindrical shape with a flattened surface.
- B. a longitudinal rib and an associated projection such as web can be given.
- the invention is characterized by the use of a positioning set comprising a cannula with an opening, a wire or needle-shaped anchoring element axially displaceable in the cannula, at least distally consisting of a shape memory material or a material containing the same, which is rectilinear or in the cannula Essentially straight and, after penetrating the opening outside the cannula, has an arcuate or hook-shaped course for the correct fixation of a prostate.
- the probe-forming elements can correspond in terms of their features to the positioning cutlery explained above, in particular with regard to the guide element or the materials used.
- FIG. 3 shows a longitudinal section through a positioning set corresponding to FIG. 1 with the above anchoring element
- FIG. 4 shows a distal end of the anchoring element according to FIG. 3.
- a positioning set 10 is provided according to the invention, which comprises a cannula 12 with an obliquely ground tip 14 to form an opening 16.
- the cannula 12 starts from a first handle 18.
- a wire-shaped anchoring element 20 is arranged coaxially within the cannula 12 and axially displaceable therewith, which, apart from its distal end 22, is surrounded by a tubular guide element 24 and is in particular non-positively connected to it in order to exclude a relative movement.
- the guide element 24 passes through the first handle 18 of the cannula 12 and is received by a second handle 26.
- a disk-shaped spacer element 28 is arranged between the first and second handles 18, 26.
- the anchoring element 20 can therefore not be axially displaced such that its free distal end 22 can penetrate the opening 16 of the cannula 12.
- the distance 7 is the distance between the first and second handles 18, 26.
- the second handle 26 can be moved to or into the first handle 18 to such an extent that the distal end 22 of the anchoring element 20 can penetrate the opening 16 of the cannula, as is illustrated in FIG. 3.
- the handle 18, facing away from the tip of the cannula has a recess 30 which is open towards the second handle 26, preferably in the form of a hollow cylinder, into which a corresponding cylindrical section 32 of the second handle 26 can be inserted, as shown in FIG. 3.
- the cylindrical section 32 merges into a collar-shaped extension 34, which serves as a stop.
- the handles 18, 26 should engage in one another in a form-fitting manner such that they are secured against rotation.
- the inner shape of the recess 30 or the outer geometry of the section 32 can differ in section from a circular geometry, for. B. through a flattened area.
- the anchoring element 22 is one that consists of a so-called shape memory material or is given one. This means that when the distal end 22 is pushed out of the cannula 12, it takes on a desired predetermined course, which in the exemplary embodiment is selected to be curved. The distal end 22 thus quasi forms a hook which can hook into the tissue area or organ to be positioned, so that uncontrolled evasion is not possible when a medical substance such as a radioactive pellet is deposited.
- the distal section 22 of the anchoring element 20 passes through the tip of the cannula 12, it is not necessary for the tip 14 of the cannula 12 to penetrate the tissue area or the organ in order to position or fix the tissue area or organ. Of course, the invention will not be abandoned if the cannula has a lateral opening which can be penetrated by the free distal end 22 of the anchoring element 20.
- the use of memory shape material for the anchoring element 20 also has the advantage that when the handle 26 is pulled out of the tissue area or organ, that is to say when the handle 26 is pulled out of the first handle 24, the distal section 22 in the The puncture channel is moved so that injuries are excluded or largely excluded.
- shape memory alloys such as nickel-titanium, copper-zinc-aluminum or gold-cadmium alloys can be mentioned as preferred materials for the shape memory material.
- shape memory alloys such as nickel-titanium, copper-zinc-aluminum or gold-cadmium alloys can be mentioned as preferred materials for the shape memory material.
- Corresponding iron-based alloys such as iron-manganese-silicon are also suitable.
- polymer having the corresponding properties as the shape memory material.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20103346U DE20103346U1 (en) | 2001-02-26 | 2001-02-26 | Positioning cutlery |
DE20103346.1 | 2001-02-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002067780A1 true WO2002067780A1 (en) | 2002-09-06 |
WO2002067780B1 WO2002067780B1 (en) | 2002-10-31 |
Family
ID=7953530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/002037 WO2002067780A1 (en) | 2001-02-26 | 2002-02-26 | Positioning instrument and use of a probe |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE20103346U1 (en) |
WO (1) | WO2002067780A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111053617A (en) * | 2019-11-19 | 2020-04-24 | 山东大学齐鲁医院 | Mammary gland focus buries line pilot pin |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4790329A (en) | 1987-06-12 | 1988-12-13 | Trustees Of Beth Israel Hospital | Adjustable biopsy localization device |
US5053041A (en) * | 1990-03-12 | 1991-10-01 | Ansari Shapoor S | Vessel holder |
US5127916A (en) * | 1991-01-22 | 1992-07-07 | Medical Device Technologies, Inc. | Localization needle assembly |
US5163947A (en) * | 1991-08-30 | 1992-11-17 | C. R. Bard, Inc. | Biopsy needle spacer |
DE3690135C2 (en) | 1985-03-19 | 1993-11-04 | James E Nicholson | SELF-ACTING PROBE FOR LOCALIZING SICK TISSUE CHANGES IN THE CHEST |
DE4424394A1 (en) | 1994-07-13 | 1996-01-18 | Norbert Heske | Device for marking tissue positions with hollow needle |
EP0308482B1 (en) | 1987-03-20 | 1996-03-06 | Medical Device Technologies, Inc. | Localization needle assembly |
US5573542A (en) * | 1994-08-17 | 1996-11-12 | Tahoe Surgical Instruments-Puerto Rico | Endoscopic suture placement tool |
US5921918A (en) * | 1996-03-26 | 1999-07-13 | Riza; Erol D. | Surgical retractor |
EP0570530B1 (en) | 1991-02-04 | 1999-08-04 | Menlo Care Inc. | Catheter with changeable number of lumens |
US6053876A (en) | 1999-06-09 | 2000-04-25 | Fisher; John | Apparatus and method for marking non-palpable lesions |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4986279A (en) * | 1989-03-01 | 1991-01-22 | National-Standard Company | Localization needle assembly with reinforced needle assembly |
DE4216694B4 (en) * | 1991-05-31 | 2005-06-16 | Bip Acquisition Company Inc., Wilmington | biopsy needle |
US5800445A (en) * | 1995-10-20 | 1998-09-01 | United States Surgical Corporation | Tissue tagging device |
CA2187975C (en) * | 1995-10-20 | 2001-05-01 | Lisa W. Heaton | Surgical apparatus and method for marking tissue location |
-
2001
- 2001-02-26 DE DE20103346U patent/DE20103346U1/en not_active Expired - Lifetime
-
2002
- 2002-02-26 WO PCT/EP2002/002037 patent/WO2002067780A1/en not_active Application Discontinuation
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3690135C2 (en) | 1985-03-19 | 1993-11-04 | James E Nicholson | SELF-ACTING PROBE FOR LOCALIZING SICK TISSUE CHANGES IN THE CHEST |
EP0308482B1 (en) | 1987-03-20 | 1996-03-06 | Medical Device Technologies, Inc. | Localization needle assembly |
US4790329A (en) | 1987-06-12 | 1988-12-13 | Trustees Of Beth Israel Hospital | Adjustable biopsy localization device |
US5053041A (en) * | 1990-03-12 | 1991-10-01 | Ansari Shapoor S | Vessel holder |
US5127916A (en) * | 1991-01-22 | 1992-07-07 | Medical Device Technologies, Inc. | Localization needle assembly |
EP0570530B1 (en) | 1991-02-04 | 1999-08-04 | Menlo Care Inc. | Catheter with changeable number of lumens |
US5163947A (en) * | 1991-08-30 | 1992-11-17 | C. R. Bard, Inc. | Biopsy needle spacer |
DE4424394A1 (en) | 1994-07-13 | 1996-01-18 | Norbert Heske | Device for marking tissue positions with hollow needle |
US5573542A (en) * | 1994-08-17 | 1996-11-12 | Tahoe Surgical Instruments-Puerto Rico | Endoscopic suture placement tool |
US5921918A (en) * | 1996-03-26 | 1999-07-13 | Riza; Erol D. | Surgical retractor |
US6053876A (en) | 1999-06-09 | 2000-04-25 | Fisher; John | Apparatus and method for marking non-palpable lesions |
Also Published As
Publication number | Publication date |
---|---|
DE20103346U1 (en) | 2001-08-16 |
WO2002067780B1 (en) | 2002-10-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4424394B4 (en) | Device for marking tissue sites | |
DE3825631C2 (en) | ||
DE69731921T2 (en) | Minimally invasive biopsy device | |
DE60032052T2 (en) | Device for percutaneously implanting a paddle-like conductor | |
DE60109599T2 (en) | DEVICE FOR INTRODUCING ELECTRICAL, MEDICAL LINES | |
DE60114574T2 (en) | DEVICE FOR ACCESSING AND PERFORMING OPERATIONS IN A INTERMEDIATE WHEEL | |
DE69531791T2 (en) | Catheter for electrosurgical access to the bile duct branch | |
DE2800362C3 (en) | Endoscope with controllably movable guide tube for an instrument | |
DE60032887T2 (en) | BIOPSY NEEDLE | |
DE69722477T2 (en) | Surgical suture insertion device | |
DE60015742T2 (en) | MEDICAL ELECTRODE LINE | |
WO2006000568A2 (en) | Marker | |
DE3045295A1 (en) | Surgical instrument for an endoscope | |
DE19930266A1 (en) | catheter | |
EP1559379A1 (en) | Instrument for placing tissue markers | |
DE3403962A1 (en) | STICK CHANNEL PREPARATION DEVICE FOR PERCUTANIC NEPHROSCOPY | |
DE4216694B4 (en) | biopsy needle | |
DE3345612A1 (en) | Puncturing probe for percutaneous nephroscopy | |
DE8614013U1 (en) | Ureteral stent | |
EP1782745B1 (en) | Tissue marker comprising a preformed wire with a distal slit | |
WO2002067780A1 (en) | Positioning instrument and use of a probe | |
DE3032317A1 (en) | IMPLANTABLE LINE ARRANGEMENT | |
DE102004055583A1 (en) | Marker e.g. for animal and human tissue, tumor identification, is circularly manufactured by predetermined material such as Nickel titanium wire, and longitudinally extended to form ring | |
DE3690135C2 (en) | SELF-ACTING PROBE FOR LOCALIZING SICK TISSUE CHANGES IN THE CHEST | |
EP1634543B1 (en) | Surgical Instrument |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
AK | Designated states |
Kind code of ref document: B1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: B1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
B | Later publication of amended claims | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
122 | Ep: pct application non-entry in european phase | ||
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |