EP3589222A1 - Biopsy needle guide having two-stage fixation - Google Patents
Biopsy needle guide having two-stage fixationInfo
- Publication number
- EP3589222A1 EP3589222A1 EP18711218.0A EP18711218A EP3589222A1 EP 3589222 A1 EP3589222 A1 EP 3589222A1 EP 18711218 A EP18711218 A EP 18711218A EP 3589222 A1 EP3589222 A1 EP 3589222A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adapter sleeve
- biopsy needle
- clamping
- opening
- head
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
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
- A61B17/34—Trocars; Puncturing needles
-
- 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
- A61B17/3403—Needle locating or guiding means
-
- 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
-
- 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
- A61B10/0233—Pointed or sharp biopsy 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
- A61B2010/009—Various features of diagnostic instruments
- A61B2010/0093—Various features of diagnostic instruments slide rules
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00477—Coupling
- A61B2017/00486—Adaptors for coupling parts with incompatible geometries
-
- 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
- A61B17/3403—Needle locating or guiding means
- A61B2017/3405—Needle locating or guiding means using mechanical guide means
- A61B2017/3407—Needle locating or guiding means using mechanical guide means including a base for support on the body
-
- 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
- A61B2090/3954—Markers, e.g. radio-opaque or breast lesions markers magnetic, e.g. NMR or MRI
-
- 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
- A61B2090/3966—Radiopaque markers visible in an X-ray image
-
- 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
- A61B2090/3987—Applicators for implanting markers
-
- 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
- A61B90/10—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 for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/11—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 for stereotaxic surgery, e.g. frame-based stereotaxis with guides for needles or instruments, e.g. arcuate slides or ball joints
Definitions
- Biopsy needle guide comprising
- a fixing structure (201) and a clamping structure (202) are present, and
- An adapter sleeve (3) is present, which has a
- Clamping structure (202) cooperates, that a in opening (30) inserted biopsy needle is fixed in the axial direction.
- Biosienadel according to claim 1, characterized in that the adapter sleeve (3) - Includes a roughly hollow cylindrical shaft, which in the opening (2) of the head as a locking portion a clamping pin (31) of which engages through the lateral surface of the adapter sleeve and is mounted radially displaceably in this, and / or
- Biopsy needle guide according to one of claims 1 or 2, characterized in that the fixing structure (201) and the clamping structure (202) is formed by
- Biopsy needle guide according to one of the preceding claims, characterized in that the adapter sleeve (3) over a plurality of locking portions (31), and the opening (20) has a plurality of clamping and fixing structures (201), (202).
- Biopsy needle guide according to one of the preceding claims, characterized in that the opening (20) of the head (2) has a circular, circular segment or nikschne- sectional cross-section.
- Biopsy needle guide according to one of the preceding claims, characterized in that the opening (20) has guide grooves (203) for the locking portions (31) of the adapter sleeve (3).
- Biopsy needle guide according to one of the preceding claims, characterized in that the head (2)
- Angulable i. relative to the guide support (5) is pivotable about an axis, wherein the head is clamped in the angled state, and / or
- the head (2) is moved to an optimal location for biopsy and is angulated as desired
- the adapter sleeve (3) is inserted into the opening (20) of the head (2) up to the stop collar (32) and fixed in the axial direction by rotation at an angle less than or equal to the first angle (W),
- the present invention relates to a biopsy needle guide, comprising a head which has at least two degrees of freedom in total and is freely positionable at least in one plane, and has a continuous opening (20) for performing a biopsy needle and a use of such a biopsy needle guide.
- Biopsy is the removal and examination of tissue samples from a living organism.
- a biopsy is often indicated after the diagnosis of a tumor in order to directly examine the tumor tissue medically, and to be able to decide, for example, on malignancy and benignness of the tumor.
- Biopsy is usually performed by puncturing the target tissue with a biopsy needle. This includes inserting the biopsy needle and positioning the needle tip in the tissue to be examined followed by tissue sample removal.
- Biopsy needle guides usually achieve this by virtue of the fact that a head comprising an opening for passing through the biopsy needle is guided in a freely displaceable manner by means of at least two degrees of freedom, at least in one plane.
- the position of the head relative to the tissue to be examined is known, either by imaging the head as a whole or at least a part of it, then by moving the head or the opening for the biopsy needle which is present in it, it is possible to do so be sampled position that a pushed through the opening needle in any case must hit the right place.
- the insertion depth of the needle is known exactly enough. This can be achieved by determining the depth information in the form of the distance from the head to the sampling point or, before positioning the head, the distance between the displacement plane of the head to the first image plane by imaging in a plane tilted to the first plane.
- a biopsy needle is then pushed through the needle guide opening of the head precisely into the body at the predetermined distance beyond the reference point of the needle guide or the head which determines the distance determination, whereby the needle point is positioned in the target volume to be sampled.
- the biopsy needle After removal of the sample, the biopsy needle is pulled out again. It is almost inevitable that a contamination of the needle guide or at least the head tissue material of the patient takes place. For safe and hygienic reuse of the needle guide would thus be necessary to sterilize at least the head between two biopsy procedures. This is due to the technical complexity geometric shape and the multi-part construction of the head difficult only with the desired hygiene possible, and in any case associated with a high time and thus cost.
- a clamping device may be provided approximately in the passage opening of the head of the biopsy needle guide.
- biopsy needle and adapter sleeve would be fixed axially at the same time. This means that before fixing the biopsy needle and the adapter sleeve still displaced in the axial direction This would, on the one hand, make the exact positioning of the biopsy needle difficult and, on the other hand, it would be necessary when removing the needle for the sampler to actively prevent the adapter sleeve from slipping too early, eg by holding it with one hand.
- the present invention has the task of finding a biopsy needle guide with sufficient separation between the needle and not easily sterilizable parts of the needle guide, which allows a clamping of the needle with little effort and the simplest possible and ergonomic operation.
- the present invention provides a biopsy needle guide with a head having an opening for receiving an adapter sleeve, the adapter sleeve in turn comprising an opening for passing a biopsy needle, the opening in the head of the needle guide having the inside with a fixing and a clamping structure is equipped, which cooperates with a locking portion of the adapter sleeve, so that a two-stage fixation of adapter sleeve and biopsy needle is achieved.
- the locking portion of the adapter sleeve engages upon rotation of the adapter sleeve about its longitudinal axis to a first angle only the fixing structure, so that a fixation of the adapter sleeve takes place in the axial direction but still no clamping of the biopsy needle.
- the latch portion engages behind the clamping structure, and clamping of the biopsy needle is achieved.
- a type of two-stage bayonet closure is realized, which in the first stage only causes the axial fixation of the adapter sleeve, with the biopsy needle still remains freely displaceable, to clamp in the second stage, this too.
- the realization possibilities of this basic concept of the present invention are not limited to the designs of a bayonet closure known with pin and groove, but also more general embodiments are conceivable.
- the advantage of this solution is a lightweight and ergonomic axial fixation, which allows a precise shift in the function of the patient. After the needle is fully positioned, a slight turn beyond the first angle around the needle itself is also sufficient ... the sterility of the needle guide head or needle guide as a whole is guaranteed by the use of an adapter sleeve which is either easy to sterilize or if so particularly high level of hygiene seems necessary, can also be used as a disposable part. Upon removal of the biopsy specimen needle, the specimen collector need not worry about the adapter sleeve disengaging from its biopsy needle head prematurely, as long as it is at an angle of zero degrees to the first angle relative to its insertion position. remains twisted, not axially movable. As a result, one-handed operation of the biopsy needle guide according to the invention is advantageously made possible.
- the use of the biopsy needle guide according to the invention provides that first the head is displaced on the basis of the determined image data into an optimal position for biopsy, whereby any rotational or Verschwenkungsoko- degrees of the head may also be taken into account in order to improve the patient piercing direction (Angulation), then the adapter sleeve inserted into the opening and through Rotation is fixed by an angle smaller than the first angle in the axial direction, then the biopsy needle is moved through the provided in the adapter sleeve opening through the tissue to be sampled in the patient, and finally lent, when the end position of the needle is reached by another
- the adapter sleeve according to the invention preferably has a body that is designed approximately as a wood-cylindrical shaft. At one end of this shaft, a stop collar in the insertion direction behind the handle part in the form of two or more grip tabs is formed.
- the locking portion of the adapter sleeve is preferably a part of the shaft. It consists in one embodiment of a on three sides of the material of the cut-out tongue whose loose end is movable substantially in the radial direction. In another embodiment, the locking portion consists of a latch pin inserted into an opening which penetrates the lateral surface of the adapter sleeve and which is displaceable in the radial direction.
- the fixing and clamping structure on the inner surface of the passage opening of the head may consist in one embodiment of a groove which has a constant radius in a first portion, and in a second the Clamping structure forming section has a visibly increasing angle reducing radius.
- the fixing structure consists of a protruding into the substantially circular passage opening web.
- this comprises a first section, which serves for the axial fixation of the adapter sleeve without clamping, and a second section, which, together with the latch section, causes a clamping of both biopsy needle and adapter sleeve.
- the web represents only the fixing structure and the clamping structure is formed by a further, different from the web portion of the inner surface of the needle feedthrough opening, which has a reduced radius relative to a mean radius of the opening.
- a plurality of locking parts in the adapter sleeve or corresponding thereto a plurality of fixing and clamping structures in the passage opening of the head are present.
- the passage opening of the head preferably has a circular, circular segment or a circular cut-shaped cross-section and further has in the case of a protruding over the average radius latch portion in the adapter sleeve guide grooves, which allow a frictionless insertion of the adapter sleeve together with latch portion up to a stop.
- the head of the biopsy needle guide according to the invention can be fixed via a clamping screw on a guide support on which it is displaceably guided, and is particularly preferably designed angulierbar, ie it is pivotable about an axis which lies within the displacement plane of the head. Furthermore, the head can preferably be used in th steps are clamped in the angled state. He also has in addition to the passage opening via a receptacle for a marking element, which allows, for. Example, when using CT or MRI as an imaging method to detect the exact position of the head on the image of the tissue to be sampled.
- the adapter sleeve according to the invention has a grip part in the form of two multiple grip tabs for better ergonomic operation.
- the clamping of the biopsy needle is released, so that it is displaced in the axial direction, for example, to pull them out of the tissue again, without causing an axial displacement of the adapter sleeve, because this further by cooperation of the locking portion of the adapter sleeve with the fixing structure in the interior of the passage opening of the head in the axial direction.
- FIG. 1 An embodiment of a needle guide head of the present invention with partially inserted adapter sleeve.
- FIG. 2 shows an embodiment of a biopsy needle guide according to the present invention with the head from FIG. 1.
- Figure 3 Possible embodiments of the passage opening of the head with clamping and fixing structures.
- Figure 1 shows a perspective view of a possible embodiment of a head of a biopsy needle guide according to the present invention, as well as a cross section through the part of the head containing the passage opening.
- head 2 in the lead-through opening for receiving a biopsy needle adapter sleeve 3 is partially inserted.
- Adapter sleeve 3 comprises a hollow cylindrical shaft 34 at the insertion end at the upper end of a stop collar with underlying grip part in the form of four 90 ° degrees offset from each other arranged handle flaps 33 is located.
- a locking pin 31 is mounted in a radially displaceable manner, which protrudes beyond the upper lateral surface of the shaft.
- Opening 20 in head 2 has grooves 22 for insertion of the locking pin 31 up to the stop, which is given by abutment of the stop collar 32 to the end face of the passage opening contained portion of head 2. After complete insertion of the adapter sleeve 3 to the stop 32, this is due to the presence of a tangential groove rotatable by a certain angle.
- the tangential groove has a first section 201, in which the effective radius remains essentially constant.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017104301.2A DE102017104301A1 (en) | 2017-03-01 | 2017-03-01 | Biopsy needle guide with two-stage fixation |
PCT/DE2018/100111 WO2018157882A1 (en) | 2017-03-01 | 2018-02-09 | Biopsy needle guide having two-stage fixation |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3589222A1 true EP3589222A1 (en) | 2020-01-08 |
Family
ID=61655553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18711218.0A Withdrawn EP3589222A1 (en) | 2017-03-01 | 2018-02-09 | Biopsy needle guide having two-stage fixation |
Country Status (7)
Country | Link |
---|---|
US (1) | US20190380741A1 (en) |
EP (1) | EP3589222A1 (en) |
JP (1) | JP2020508785A (en) |
KR (1) | KR20190120799A (en) |
CN (1) | CN110325131A (en) |
DE (2) | DE102017104301A1 (en) |
WO (1) | WO2018157882A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111481397A (en) * | 2020-04-20 | 2020-08-04 | 济南生发堂生物科技股份有限公司 | Hair follicle stem cell culture injection device and use method |
CN113081276B (en) * | 2021-03-29 | 2022-07-15 | 上海健康医学院 | Four-bar linkage venipuncture needle advancing and retreating execution device with needle picking action |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2686242A1 (en) * | 1992-01-22 | 1993-07-23 | Barbier Georges | BLOOD SAMPLING DEVICE FOR AIR VACUUM TUBE. |
JPH0573054U (en) * | 1992-03-11 | 1993-10-05 | 株式会社小松製作所 | Drilling blade mounting device |
US5660185A (en) * | 1995-04-13 | 1997-08-26 | Neovision Corporation | Image-guided biopsy apparatus with enhanced imaging and methods |
US7708751B2 (en) * | 2004-05-21 | 2010-05-04 | Ethicon Endo-Surgery, Inc. | MRI biopsy device |
US20090112119A1 (en) * | 2007-10-31 | 2009-04-30 | Kim Stanley I | Rotating biopsy device and biopsy robot |
JP5259346B2 (en) * | 2008-11-05 | 2013-08-07 | 富士フイルム株式会社 | Biopsy equipment |
CN201814661U (en) * | 2010-10-22 | 2011-05-04 | 万恒 | Standing guide instrument for puncture diagnosis |
SG11201601296UA (en) * | 2013-08-28 | 2016-03-30 | Inst Of Technical Education | System and apparatus for guiding an instrument |
DE102013113277A1 (en) * | 2013-11-29 | 2015-06-03 | Hubert Noras | Needle guide for biopsy |
DE102013113272A1 (en) * | 2013-11-29 | 2015-06-03 | Hubert Noras | Needle guiding device for biopsy |
US20160256233A1 (en) * | 2015-03-05 | 2016-09-08 | MRI Interventions, Inc. | Trajectory guide systems, frames and methods for image-guided surgeries |
-
2017
- 2017-03-01 DE DE102017104301.2A patent/DE102017104301A1/en not_active Withdrawn
-
2018
- 2018-02-09 JP JP2019547466A patent/JP2020508785A/en active Pending
- 2018-02-09 KR KR1020197028310A patent/KR20190120799A/en not_active Application Discontinuation
- 2018-02-09 DE DE112018001077.5T patent/DE112018001077A5/en not_active Withdrawn
- 2018-02-09 WO PCT/DE2018/100111 patent/WO2018157882A1/en unknown
- 2018-02-09 US US16/489,874 patent/US20190380741A1/en not_active Abandoned
- 2018-02-09 EP EP18711218.0A patent/EP3589222A1/en not_active Withdrawn
- 2018-02-09 CN CN201880015229.9A patent/CN110325131A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JP2020508785A (en) | 2020-03-26 |
WO2018157882A1 (en) | 2018-09-07 |
US20190380741A1 (en) | 2019-12-19 |
DE102017104301A1 (en) | 2018-09-06 |
KR20190120799A (en) | 2019-10-24 |
CN110325131A (en) | 2019-10-11 |
DE112018001077A5 (en) | 2019-11-14 |
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