DE3002088A1 - Electrically heated forceps pair - has helically wound wire embedded in insulating thermally resistive plastic for tissue embedding - Google Patents
Electrically heated forceps pair - has helically wound wire embedded in insulating thermally resistive plastic for tissue embeddingInfo
- Publication number
- DE3002088A1 DE3002088A1 DE19803002088 DE3002088A DE3002088A1 DE 3002088 A1 DE3002088 A1 DE 3002088A1 DE 19803002088 DE19803002088 DE 19803002088 DE 3002088 A DE3002088 A DE 3002088A DE 3002088 A1 DE3002088 A1 DE 3002088A1
- Authority
- DE
- Germany
- Prior art keywords
- forceps
- tweezers
- resistance wire
- paraffin
- pair
- 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- Withdrawn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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B9/00—Hand-held gripping tools other than those covered by group B25B7/00
- B25B9/02—Hand-held gripping tools other than those covered by group B25B7/00 without sliding or pivotal connections, e.g. tweezers, onepiece tongs
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
Abstract
Description
Elektrische Beheizung von Pinzetten Electric heating of tweezers
Die Erfindung betrifft die elektrische Beheizung von Pinzetten, die benutzt werden, um Gewebeproben in flüssiges,heißes Paraffin einzubetten. Es ist bekannt, daß Pinzetten über eine offene Bunsenbrennergasflamne angewärmt werden.Pür das Erreichen einer gleichbleibenden Temperatur an der Pinzettenspitze ist diese Erwärmungsmaßnahme ungeeignet. Es ist-weiterhin bekannt,Handhabungsgeräte elektrisch zu beheizen.The invention relates to the electrical heating of tweezers that can be used to embed tissue samples in liquid, hot paraffin. It is known that tweezers are warmed by an open Bunsen burner gas flame reaching a constant temperature at the tip of the tweezers is this Warming measure unsuitable. It is also known that handling devices are electrical to heat.
Für die Einbettung von Gewebeteilen in flüssiges, heißes Paraffin sind derartige Handhabungsgeräte ungeeignet.For embedding tissue parts in liquid, hot paraffin such handling devices are unsuitable.
Die Aufgabe der Erfindung ist es, an den Pinzettenspitzen eine gleichbleibende Temperatur zu erreichen, die silber dem Schmelzpunkt des verwendeten Paraffins liegt, um zu verhindern, daß das flüssige, heiße Paraffin an der kalten Pinzettenspitze erstarrt und das Gewebeteil an der Pinzettenspitze dadurch anklebt, wenn die Pinzette beim Einbettvorgang in das flüssige, heiße Paraffin getaucht wird.The object of the invention is to maintain a constant force at the tips of the tweezers To reach a temperature that is silver than the melting point of the paraffin used, to prevent the liquid, hot paraffin from sticking to the cold tip of the tweezers solidifies and the piece of tissue sticks to the tip of the forceps when the forceps is immersed in the liquid, hot paraffin during the embedding process.
Diese Aufgabe wurde dadurch gelöst, daß in einem geeigneten Abstand von den Pinzettenspitzen (1) und auf einer geeigneten Länge um die Schenkel einer metallenen Pinzette ein geeigneter Widerstandsdraht (2) , vorzugsweise durch wärmebeständigen Kunststoff isoliert, vorzugsweise wendelartig gewickelt wird und im Bereich der wendelartigen Umwicklung der Pinzettenschenkel in wärmebeständigen Kunststoff (3) eingebettet und zur Pinzettenspitze hin durch einen vorzugsweise metallenen Ring (4) geschützt wird und eine geeignete elektrische Spannung, vorzugsweise im Niederspannungsbereich, an diesen Widerstandsdraht so angelegt wird, daß ein entsprechender elektrischer Strom den Widerstandsdraht durchfließt und derart erwärmt, daß die Spitzen der Pinzettenschenkel eine Temperatur erreichen, die über dem Schmelzpunkt des verwendeten Paraffins liegt.This object has been achieved in that at a suitable distance from the tips of the tweezers (1) and at a suitable length around the legs of a metal tweezers a suitable resistance wire (2), preferably through heat-resistant Plastic is insulated, preferably wound in a helical manner, and in the area the helical wrapping of the tweezer legs in heat-resistant plastic (3) embedded and towards the tip of the tweezers by a preferably metal ring (4) is protected and a suitable electrical voltage, preferably in the low voltage range, is applied to this resistance wire so that a corresponding electrical Current flows through the resistance wire and is heated in such a way that the tips of the forceps legs Reach a temperature that is above the melting point of the paraffin used.
L e e r s e i t eL e r s e i t e
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803002088 DE3002088A1 (en) | 1980-01-22 | 1980-01-22 | Electrically heated forceps pair - has helically wound wire embedded in insulating thermally resistive plastic for tissue embedding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803002088 DE3002088A1 (en) | 1980-01-22 | 1980-01-22 | Electrically heated forceps pair - has helically wound wire embedded in insulating thermally resistive plastic for tissue embedding |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3002088A1 true DE3002088A1 (en) | 1981-07-23 |
Family
ID=6092595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19803002088 Withdrawn DE3002088A1 (en) | 1980-01-22 | 1980-01-22 | Electrically heated forceps pair - has helically wound wire embedded in insulating thermally resistive plastic for tissue embedding |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3002088A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4305057A1 (en) * | 1993-02-19 | 1994-08-25 | Tga Tech Geraete Und Apparateb | Electrically heated tweezers |
DE4325300A1 (en) * | 1993-07-28 | 1995-02-02 | Rbr Computertechnik Gmbh | Heatable hose (flexible tube) |
US5556563A (en) * | 1995-04-10 | 1996-09-17 | Von Der Heyde; Christian P. | Tick removal device comprising electrically heated retractable tweezers |
US5914062A (en) * | 1998-06-15 | 1999-06-22 | Von Der Heyde; Christian P. | Tick removal device |
US7534243B1 (en) | 1998-08-12 | 2009-05-19 | Maquet Cardiovascular Llc | Dissection and welding of tissue |
US7695470B1 (en) | 1998-08-12 | 2010-04-13 | Maquet Cardiovascular Llc | Integrated vessel ligator and transector |
US7938842B1 (en) | 1998-08-12 | 2011-05-10 | Maquet Cardiovascular Llc | Tissue dissector apparatus |
CN102830005A (en) * | 2012-09-04 | 2012-12-19 | 王世峰 | Pathological embedding paraffin supply nozzle |
DE102014210298A1 (en) * | 2014-05-30 | 2015-12-17 | Pfm Medical Ag | Heatable tweezers and tweezers loading device |
US10507012B2 (en) | 2000-11-17 | 2019-12-17 | Maquet Cardiovascular Llc | Vein harvesting system and method |
US11134835B2 (en) | 2006-06-01 | 2021-10-05 | Maquet Cardiovascular Llc | Endoscopic vessel harvesting system components |
-
1980
- 1980-01-22 DE DE19803002088 patent/DE3002088A1/en not_active Withdrawn
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4305057A1 (en) * | 1993-02-19 | 1994-08-25 | Tga Tech Geraete Und Apparateb | Electrically heated tweezers |
DE4325300A1 (en) * | 1993-07-28 | 1995-02-02 | Rbr Computertechnik Gmbh | Heatable hose (flexible tube) |
US5556563A (en) * | 1995-04-10 | 1996-09-17 | Von Der Heyde; Christian P. | Tick removal device comprising electrically heated retractable tweezers |
US5914062A (en) * | 1998-06-15 | 1999-06-22 | Von Der Heyde; Christian P. | Tick removal device |
US9700398B2 (en) | 1998-08-12 | 2017-07-11 | Maquet Cardiovascular Llc | Vessel harvester |
US7938842B1 (en) | 1998-08-12 | 2011-05-10 | Maquet Cardiovascular Llc | Tissue dissector apparatus |
US8075559B2 (en) | 1998-08-12 | 2011-12-13 | Maquet Cardiovascular, Llc | Apparatus and method for integrated vessel ligator and transector |
US8460331B2 (en) | 1998-08-12 | 2013-06-11 | Maquet Cardiovascular, Llc | Tissue dissector apparatus and method |
US8986335B2 (en) | 1998-08-12 | 2015-03-24 | Maquet Cardiovascular Llc | Tissue dissector apparatus and method |
US7695470B1 (en) | 1998-08-12 | 2010-04-13 | Maquet Cardiovascular Llc | Integrated vessel ligator and transector |
US7534243B1 (en) | 1998-08-12 | 2009-05-19 | Maquet Cardiovascular Llc | Dissection and welding of tissue |
US9730782B2 (en) | 1998-08-12 | 2017-08-15 | Maquet Cardiovascular Llc | Vessel harvester |
US10507012B2 (en) | 2000-11-17 | 2019-12-17 | Maquet Cardiovascular Llc | Vein harvesting system and method |
US11134835B2 (en) | 2006-06-01 | 2021-10-05 | Maquet Cardiovascular Llc | Endoscopic vessel harvesting system components |
US11141055B2 (en) | 2006-06-01 | 2021-10-12 | Maquet Cardiovascular Llc | Endoscopic vessel harvesting system components |
CN102830005A (en) * | 2012-09-04 | 2012-12-19 | 王世峰 | Pathological embedding paraffin supply nozzle |
DE102014210298A1 (en) * | 2014-05-30 | 2015-12-17 | Pfm Medical Ag | Heatable tweezers and tweezers loading device |
US10046327B2 (en) | 2014-05-30 | 2018-08-14 | Pfm Medical Ag | Heatable tweezers, and charging device for the tweezers |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8141 | Disposal/no request for examination |