DE4227369C1 - Surgical knife with suction unit - has tubular blade flattened and ground at one end and connected to suction unit at other, has channels for fluid feed inside tube - Google Patents

Surgical knife with suction unit - has tubular blade flattened and ground at one end and connected to suction unit at other, has channels for fluid feed inside tube

Info

Publication number
DE4227369C1
DE4227369C1 DE4227369A DE4227369A DE4227369C1 DE 4227369 C1 DE4227369 C1 DE 4227369C1 DE 4227369 A DE4227369 A DE 4227369A DE 4227369 A DE4227369 A DE 4227369A DE 4227369 C1 DE4227369 C1 DE 4227369C1
Authority
DE
Germany
Prior art keywords
tube
suction unit
ground
flattened
surgical knife
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.)
Expired - Fee Related
Application number
DE4227369A
Other languages
German (de)
Inventor
Wolfgang Daum
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE4227369A priority Critical patent/DE4227369C1/en
Application granted granted Critical
Publication of DE4227369C1 publication Critical patent/DE4227369C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • A61B17/32—Surgical cutting instruments
    • A61B17/3209—Incision instruments
    • A61B17/3211—Surgical scalpels, knives; Accessories therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00—General characteristics of surgical instruments
    • A61B2217/002—Auxiliary appliance
    • A61B2217/005—Auxiliary appliance with suction drainage system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00—General characteristics of surgical instruments
    • A61B2217/002—Auxiliary appliance
    • A61B2217/007—Auxiliary appliance with irrigation system
    • 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
    • A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
    • 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
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/84—Drainage tubes; Aspiration tips
    • A61M1/85—Drainage tubes; Aspiration tips with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants

Abstract

The cutting blade is formed by a first tube (1) flattened at one end and ground, whereby the other end of the tube is connected to a suction unit. Inside the first tube are further tubes (5) or channels for feed of fluid. The first flattened tube at the longitudinal gap end is ground to a point. Light conductors are fed from the inside to the gap-shaped aperture (2). This aperture has a varying width along the cutting edge and a different suction profile may be adjusted over the aperture. ADVANTAGE - Sucks away blood and pus. Because the suction acts directly on the blade edge, the amount of air and the pressure drop is minimised.

Description

Die Erfindung geht aus von einem chirurgischen Messer nach dem Oberbegriff des Anspruchs 1.The invention is based on a surgical knife according to the preamble of claim 1.

Aus der DE-PS 358 629 ist ein gattungsgemäßes Messer mit einer integrierten Anästhetikum-Spülung bekannt, die zu einer Absaugung umfunktioniert werden kann. Eine die Blutkoagulation verhindernde Einrichtung ist hier nicht vorgesehen.From DE-PS 358 629 a generic knife with a Integrated anesthetic irrigation known to lead to suction can be repurposed. A blood coagulation preventing Setup is not provided here.

Weitere absaugende Schneideinstrumente sind in den Druckschriften DE 38 16 441 A1 und US 36 26 471 angegeben.Further suction cutting instruments are in the publications DE 38 16 441 A1 and US 36 26 471 specified.

Chirurgische Messer, die während des Einsatzes die freiwerdende Blutflüssigkeit absaugen können, sind bereits aus DE 84 21 994 U1 bekannt. Hier wird das Blut durch mehrere Öffnungen, die innerhalb der Klinge mit einer Sammelleitung verbunden sind, abgesaugt. Zwischen den Absaugöffnungen und der Schneidkante, an der die Flüssigkeit aus dem Körper ins Freie tritt, liegt ein Weg, auf dem der Absaugdruck stark abfällt und ein beträchtlicher Anteil Luft mitgezogen wird. Dies führt zu einer Blutkoagulation im Absaugsystem und somit zu dessen Verstopfung.Surgical knives that are released during use Can suck blood fluid are already from DE 84 21 994 U1 known. Here the blood goes through several openings, connected to a manifold inside the blade are sucked off. Between the suction openings and the Cutting edge on which the liquid from the body to the outside occurs, there is a way in which the suction pressure drops sharply and a significant amount of air is drawn. this leads to blood coagulation in the suction system and thus clogging it.

Der Erfindung liegt die Aufgabe zugrunde, ein gattungsgemäßes chirurgisches Messer derart weiterzubilden, daß die bei der Blutabsaugung unmittelbar an der Schneidkante eingesaugte Luftmenge sowie der Druckabfall minimiert und die Bauweise vereinfacht wird.The invention has for its object a generic surgical knife in such a way that the at Blood suction sucked in directly at the cutting edge Air volume and pressure drop minimized and the design is simplified.

Diese Aufgabe wird bei einem gattungsgemäßen Messer erfindungsgemäß durch die im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale gelöst. Vorteilhafte Ausgestaltungen sind in den Ansprüchen 2 bis 4 angegeben. This object is achieved according to the invention in a generic knife by those specified in the characterizing part of claim 1 Features resolved. Advantageous configurations are in the Claims 2 to 4 specified.  

Der mit dem chirurgischen Messer erzielte Vorteil besteht in dem innerhalb und entlang der Klingenschneidkante liegenden Absaugspalt. Dieser ermöglicht es, das Blut unmittelbar an dem Ort der Entstehung abzusaugen. Durch das Abflachen und Anschleifen eines Rohres 1 ist die Herstellung stark vereinfacht. Anstatt die Klinge und die Haltegriffteile aus verschiedenen Teilen zu fertigen und zusammenzusetzen, sind alle Teile in einem integriert. Das zu einem Messer abgeflachte und angeschliffene Rohr 1 muß dann nur noch auf den zur Pumpe führenden Absaugschlauch gestülpt werden. Das Auswechseln der Klinge geht daher schnell und einfach.The advantage achieved with the surgical knife is the suction gap lying inside and along the blade cutting edge. This enables the blood to be sucked off directly at the point of origin. The production is greatly simplified by flattening and grinding a tube 1 . Instead of manufacturing and assembling the blade and handle parts from different parts, all parts are integrated in one. The tube 1 , which is flattened and ground to a knife, then only has to be placed on the suction hose leading to the pump. Replacing the blade is therefore quick and easy.

Ausführungsbeispiele sind in den Zeichnungen dargestellt und werden im folgenden näher erläutert. Es zeigtExemplary embodiments are shown in the drawings and are explained in more detail below. It shows

Fig. 1 zu einem Spalt abgeflachtes und angeschliffenes Rohr 1 mit innenliegender ebenso geformter Absaugkanüle 5, Fig. 1 to a gap flattened and sanded pipe 1 with internal equally shaped suction 5,

Fig. 2 Schnitt A-A′ durch die Schneidkante der Fig. 1 und Fig. 2 section AA 'through the cutting edge of FIGS. 1 and

Fig. 3 andere als in Fig. 2 gezeigte Schliffe. Fig. 3 different cuts than shown in Fig. 2.

Ein Rohr 1, welches nicht kreisrund zu sein braucht, ist an einer Seite zu einem Spalt 2 abgeflacht 3, Fig. 1. Der Spalt ist, wie in Fig. 2 gezeigt, angeschliffen 4. Durch den Spalt 2 kann während des Schnittes an der Kante 4 das Blut abgesaugt werden.A tube 1 , which need not be circular, is flattened 3 on one side to form a gap 2 , FIG. 1. As shown in FIG. 2, the gap is ground 4 . The blood can be sucked through the gap 2 during the cut at the edge 4 .

In dem Rohr 1 befindet sich zum Zweck der Spülung des Spaltes 2 ein weiteres ebenso bearbeitetes kleines Rohr 5. Ebenso bzw. zusätzlich könnte sich ein Lichtleiter zur Durchleuchtung des Spaltes auf das Operationsgebiet von innen im Rohr 1 befinden, hier nicht gezeigt. Dieser Lichtleiter könnte ebenso abgeflacht sein und vor dem Spalt 1 enden, um hier sein Licht abzustrahlen. In the tube 1 of the flushing 2 is located for the purpose of the gap is another well-worked small pipe. 5 Likewise or additionally, a light guide for illuminating the gap on the operating area could be located inside the tube 1 , not shown here. This light guide could also be flattened and end in front of the gap 1 in order to emit its light here.

Fig. 3 zeigt nicht einseitige Schliffe 6 und 7, wie sie z. B. beim Zusammensetzen zweier herkömmlicher Klingen entstehen könnten. Fig. 3 shows one-sided cuts 6 and 7 , such as z. B. could arise when putting together two conventional blades.

Der Spalt des Rohres könnte aber ebenso in dieser Weise angeschliffen sein.The gap of the tube could also be ground in this way his.

Claims (4)

1. Chirurgisches Messer mit einer Schneidklinge, die entlang ihrer Schneide eine spaltförmige Öffnung (2) aufweist und bei dem innerhalb der Schneidklinge im Bereich der spaltförmigen Öffnung (2) eine Flüssigkeit zuführbar ist,
dadurch gekennzeichnet, daß
die Schneidklinge durch ein erstes an einem Ende abgeflachtes,, angeschliffenes Rohr (1) gebildet ist, wobei das andere Ende des Rohres mit einer Absaugeinrichtung verbunden ist und daß innerhalb des ersten Rohres weitere Rohre (5) oder Kanäle zur Zuführung der Flüssigkeit angeordnet sind.1. Surgical knife with a cutting blade which has a slit-shaped opening ( 2 ) along its cutting edge and in which a liquid can be supplied within the cutting blade in the area of the slit-shaped opening ( 2 ),
characterized in that
the cutting blade is formed by a first, flattened, ground tube ( 1 ), the other end of the tube being connected to a suction device and further tubes ( 5 ) or channels for supplying the liquid being arranged within the first tube. 2. Chirurgisches Messer nach Anspruch 1, dadurch gekennzeichnet, daß das erste abgeflachte Rohr (1) an den Längsspaltenden zu Spitzen geschliffen ist.2. Surgical knife according to claim 1, characterized in that the first flattened tube ( 1 ) is ground to tips at the longitudinal splitting ends. 3. Chirurgisches Messer nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß Lichtleiter von innen an die spaltförmige Öffnung (2)geführt sind.3. Surgical knife according to claim 1 or 2, characterized in that light guides are guided from the inside to the gap-shaped opening ( 2 ). 4. Chirurgisches Messer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß mit einer entlang der Schneidkante variierenden Breite der spaltförmigen Öffnung (2), ein über die spaltförmige Öffnung (2) unterschiedliches Saugprofil eingestellt ist.4. Surgical knife according to one of claims 1 to 3, characterized in that with a varying along the cutting edge width of the gap-shaped opening ( 2 ), a different over the gap-shaped opening ( 2 ) is set suction profile.
DE4227369A 1992-08-19 1992-08-19 Surgical knife with suction unit - has tubular blade flattened and ground at one end and connected to suction unit at other, has channels for fluid feed inside tube Expired - Fee Related DE4227369C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4227369A DE4227369C1 (en) 1992-08-19 1992-08-19 Surgical knife with suction unit - has tubular blade flattened and ground at one end and connected to suction unit at other, has channels for fluid feed inside tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4227369A DE4227369C1 (en) 1992-08-19 1992-08-19 Surgical knife with suction unit - has tubular blade flattened and ground at one end and connected to suction unit at other, has channels for fluid feed inside tube

Publications (1)

Publication Number Publication Date
DE4227369C1 true DE4227369C1 (en) 1994-02-17

Family

ID=6465833

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4227369A Expired - Fee Related DE4227369C1 (en) 1992-08-19 1992-08-19 Surgical knife with suction unit - has tubular blade flattened and ground at one end and connected to suction unit at other, has channels for fluid feed inside tube

Country Status (1)

Country Link
DE (1) DE4227369C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2768552A4 (en) * 2011-10-17 2015-06-24 Carefusion 303 Inc Device for applying medical fluid to and cutting within an area

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE358629C (en) * 1922-09-12 Siegmund Loewe Dr Knives for surgical purposes
US3626471A (en) * 1969-10-13 1971-12-07 Robert E Florin Illuminated suction brain retractor
DE8421994U1 (en) * 1984-07-24 1985-11-14 Schettler, Jürgen, 7500 Karlsruhe Cutting device
DE3816441A1 (en) * 1988-05-13 1989-11-16 Tomic Dobrivoje DENTAL TREATMENT INSTRUMENTS WITH SUCTION DEVICE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE358629C (en) * 1922-09-12 Siegmund Loewe Dr Knives for surgical purposes
US3626471A (en) * 1969-10-13 1971-12-07 Robert E Florin Illuminated suction brain retractor
DE8421994U1 (en) * 1984-07-24 1985-11-14 Schettler, Jürgen, 7500 Karlsruhe Cutting device
DE3816441A1 (en) * 1988-05-13 1989-11-16 Tomic Dobrivoje DENTAL TREATMENT INSTRUMENTS WITH SUCTION DEVICE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2768552A4 (en) * 2011-10-17 2015-06-24 Carefusion 303 Inc Device for applying medical fluid to and cutting within an area
US9427253B2 (en) 2011-10-17 2016-08-30 Carefusion 303, Inc. Device for applying medical fluid to an area and for cutting within the area

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Legal Events

Date Code Title Description
8100 Publication of patent without earlier publication of application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee