WO2002089680A1 - Gerät zur entnahme von hautgewebeproben - Google Patents
Gerät zur entnahme von hautgewebeproben Download PDFInfo
- Publication number
- WO2002089680A1 WO2002089680A1 PCT/EP2002/003477 EP0203477W WO02089680A1 WO 2002089680 A1 WO2002089680 A1 WO 2002089680A1 EP 0203477 W EP0203477 W EP 0203477W WO 02089680 A1 WO02089680 A1 WO 02089680A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hollow needle
- skin tissue
- tissue samples
- skin
- collecting skin
- 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
- A61B10/0233—Pointed or sharp biopsy instruments
-
- 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
- A61B17/3205—Excision instruments
- A61B17/32053—Punch like cutting instruments, e.g. using a cylindrical or oval knife
Definitions
- the invention relates to a device for taking skin tissue samples according to the preamble of patent claim 1.
- PFM markets such a device under the name "Biopsy punch”.
- the removal devices of the known embodiment have a hollow handle with a profiling arranged on the outer circumference for better handling and a thickening as an attachment ring to prevent the fingers from slipping off and for receiving a tip in the form of a hollow needle made of preferably hardened, stainless steel.
- the inner cavity of the needle is used to hold a skin tissue sample. If a malignant skin change in a person is suspected, a sample of the affected skin tissue is required for a diagnostic examination. This skin tissue sample is taken and then examined in a laboratory for possible damage / diseases. Such damage or diseases can be skin cancer, for example.
- the known designs have the disadvantage that when the hollow needle is inserted into the skin of a person, a high pressure has to be applied to the removal device by the ground shape of the hollow needle in order to penetrate the surface of the skin tissue. A certain reduction is achieved by additionally subjecting the device to a rotary movement.
- the invention is based on the object of developing a device for taking skin tissue samples in such a way that the force required for the operator to press the hollow needle into the surface of the skin is reduced and the physical stress (tissue traumatization) of the person / patient is reduced.
- the object is achieved in that the grinding of the hollow needle is carried out in a wave or crown shape.
- This design of the hollow needle gives the ground elevations and depressions which lead to the fact that when the hollow needle is pressed into the skin there are only selective loads.
- the elevations, which are distributed over the circumference of the hollow needle first penetrate into the patient's epidermis. After penetration of the elevations, the skin is separated by a knife cut when pressed further in the axial direction.
- the number of cut edges depends on the number of increases. If the handle is also turned radially when the hollow needle penetrates the skin, the number of cut edges is halved.
- the skin areas in the known embodiment are separated over the entire circumference at the same time, since there are no elevations or depressions.
- the previously known devices are manufactured in such a way that the hollow needle is firmly connected to the handle. This is done, for example, by overmolding, gluing or pressing. But it is also conceivable that the hollow needle is attached as a replacement part in a reusable handle. This can be done, for example, by clamping, screwing or another detachable connection.
- Figure 1 is a previously used hollow needle in half section
- Figure 2 shows a hollow needle according to the invention in half section.
- Figure 1 shows the distal area of a hollow needle, which has a circumferential ground section with a defined angle. The cutting edge lies over the entire circumference.
- the bevel is produced in a wave or crown shape.
- the cutting edge thus has a shape which is provided with elevations and depressions.
- the skin is not impacted by a closed ring surface but at several points that are defined by the elevations.
- the cutting edges emanating from the elevations then penetrate the tissue at an angle and in doing so make several cuts distributed over a diameter.
- This design of the cutting edges reduces the axial application of force by the sampler
- Another advantage for the patient is the distribution over several individual cuts arranged at an angle, which causes a cutting, while splitting can be observed in the known embodiment.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002249282A AU2002249282A1 (en) | 2001-04-03 | 2002-03-28 | Apparatus for collecting skin tissue samples |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10116606 | 2001-04-03 | ||
DE10116606.0 | 2001-04-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002089680A1 true WO2002089680A1 (de) | 2002-11-14 |
WO2002089680A8 WO2002089680A8 (de) | 2003-02-27 |
Family
ID=7680231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/003477 WO2002089680A1 (de) | 2001-04-03 | 2002-03-28 | Gerät zur entnahme von hautgewebeproben |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU2002249282A1 (de) |
WO (1) | WO2002089680A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004107984A1 (en) * | 2003-06-05 | 2004-12-16 | Eastland Medical Systems Ltd | Tissue-sampling needle |
WO2005032643A1 (en) * | 2003-10-06 | 2005-04-14 | Eastland Medical Systems Ltd | Inoculation device |
US7758405B2 (en) | 2004-03-31 | 2010-07-20 | Philip Bunce | Jig |
US8156849B2 (en) | 2004-03-31 | 2012-04-17 | Eastland Medical Systems Ltd. | Work head |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3577979A (en) * | 1968-02-06 | 1971-05-11 | Harry Van Der Gaast | Disposable surgical skin punch |
US3605721A (en) * | 1969-11-03 | 1971-09-20 | Ismet Hallac | Biopsy needle |
US4832045A (en) * | 1988-03-18 | 1989-05-23 | Goldberger Robert E | Biopsy instrument |
US4913143A (en) * | 1986-05-28 | 1990-04-03 | The United States Of America As Represented By The Secretary Of The Air Force | Trephine assembly |
EP0807412A1 (de) * | 1996-05-13 | 1997-11-19 | United States Surgical Corporation | Kernbohrvorrichtung und Verfahren |
-
2002
- 2002-03-28 WO PCT/EP2002/003477 patent/WO2002089680A1/de not_active Application Discontinuation
- 2002-03-28 AU AU2002249282A patent/AU2002249282A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3577979A (en) * | 1968-02-06 | 1971-05-11 | Harry Van Der Gaast | Disposable surgical skin punch |
US3605721A (en) * | 1969-11-03 | 1971-09-20 | Ismet Hallac | Biopsy needle |
US4913143A (en) * | 1986-05-28 | 1990-04-03 | The United States Of America As Represented By The Secretary Of The Air Force | Trephine assembly |
US4832045A (en) * | 1988-03-18 | 1989-05-23 | Goldberger Robert E | Biopsy instrument |
EP0807412A1 (de) * | 1996-05-13 | 1997-11-19 | United States Surgical Corporation | Kernbohrvorrichtung und Verfahren |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004107984A1 (en) * | 2003-06-05 | 2004-12-16 | Eastland Medical Systems Ltd | Tissue-sampling needle |
EP1641398A1 (de) * | 2003-06-05 | 2006-04-05 | Eastland Medical Systems Ltd | Nadel zur entnahme von gewebeproben |
EP1641398A4 (de) * | 2003-06-05 | 2009-05-20 | Eastland Medical Systems Ltd | Nadel zur entnahme von gewebeproben |
WO2005032643A1 (en) * | 2003-10-06 | 2005-04-14 | Eastland Medical Systems Ltd | Inoculation device |
US7758405B2 (en) | 2004-03-31 | 2010-07-20 | Philip Bunce | Jig |
US8156849B2 (en) | 2004-03-31 | 2012-04-17 | Eastland Medical Systems Ltd. | Work head |
Also Published As
Publication number | Publication date |
---|---|
WO2002089680A8 (de) | 2003-02-27 |
AU2002249282A1 (en) | 2002-11-18 |
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