DE202010002803U1 - Insertion aid for cannulas - Google Patents

Abstract

Device for introducing a tracheostomy tube into a tracheostoma with an insertion aid, characterized in that the tip (2) of the insertion aid with a paraglider (1) is integrally connected and the paraglider (1) with the insertion of the insertion aid in the cannula tube (8) a covering width (4) over the cannula tube edge (5) sets.

Description

The The present invention relates to a device for introducing a Cannula or tracheostomy tube in a tracheostoma with the help of an introductory paraglider, which is on located in the cannula placed obturator.

State of the art

The Tracheostomy is one of the oldest operative Techniques in the history of medicine. De origins of this Technology goes back to antiquity. In the classical Tracheostomy is performed surgically below the larynx, typically between 1st and 2nd or 2nd and 3rd tracheal ring, an artificial one Access to the trachea created. To this artificial opening in order to maintain ventilation, becomes a so-called tracheostomy tube used. Medical indications, such as B. the need a long-term ventilation, make this technique necessary today. Alternatively to the surgical technique have been within the last few decades also minimally invasive puncture techniques developed. So find in particular percutaneous dilatation tracheotomy according to Ciaglia, dilatation tracheotomy according to Griggs and the translaryngeal tracheotomy after Fantoni wide Application.

at The percutaneous dilatation tracheotomy according to Ciaglia becomes the trachea at a suitable place first with a steel cannula punctured. So that the delicate tracheal back wall is not injured, this process typically takes place under bronchoscopic surveillance instead of. The correct position of the cannula tip can be achieved by air aspiration in a patch, filled with liquid Syringe to be checked. When the situation is correct a Teflon catheter located above the steel cannula 1 to 2 cm distal to the trachea. After removal the steel cannula becomes a J-shaped guidewire (about 1.3 mm in diameter) through this Teflon catheter into the trachea advanced. Thereafter, the Teflon catheter can be removed. Instead will now be a tubular plastic catheter with safety stop pushed over the guidewire for reinforcement. about The armored guidewire will now be one or sequentially several dilators to dilate the puncture opening pushed into the tracheal lumen with the help of a rotating movement. Due to the conical shape of the dilators, the tissue expands so that the tracheal cannula wetted with lubricant with the help of a special obturator the guide wire can be used. The correct one Location is checked with the bronchoscope. Subsequently The guide wire can be removed and attached to the tracheostomy tube located balloon for sealing the trachea with air be filled.

at The Griggs dilatation tracheotomy is used instead of the conical Dilators used a forceps to dilate the tissue.

The invention DE 10 2005 021 470 A1 relates to an apparatus for introducing a tracheostomy tube into a tracheostoma, comprising an introducer having a shaft passing through the tracheostomy tube and a conical tip connectable to the shaft.

Around a device for introducing a tracheostomy tube to create the risk of injury when inserting the tracheostomy tube considerably reduced and facilitates the Einhringungsvorgang, wherein the cannula so inserted even with permanent use high wearing comfort and the risk of injury or minimizes wound sites in the trachea, the invention proposes that the insertion aid has a conical tip, the in a first state with a small base diameter and a second state can be brought with a large base diameter, wherein the insertion aid has a, adjacent to the conical tip, Section, whose diameter has a maximum of the inner diameter of a Tracheal cannula to be inserted with the introducer and where the small base diameter of the conical tip is also at most equal to the inner diameter of the tracheostomy tube is while the large base diameter of the conical Tip larger than the inner diameter of the tracheostomy tube is and preferably approximately the outer diameter of it corresponds to the tracheal cannula to be inserted.

In the minimally invasive dilation technique, the applied tracheostoma is very narrow. In order to be able to insert the tracheostomy tube nevertheless, one uses an insertion aid, the tip of which is tapered conically similar to the dilators. The introducer is a flexible rod or tube sized to be pushed completely through the lumen of the tracheostomy tube so that the conical tip protrudes from the tracheal cannula at the distal end. In this condition, the tracheostomy tube is inserted into the tracheostoma and forced through constrictions, with the conical tip dilating the constriction accordingly. Of course, after inserting the tracheal cannula, the introducer must again be pulled out of the cannula. As a result, it is inevitable that the diameter of the entire insertion aid, including the area of the conical tip, must be smaller than the inner diameter of the cannula. Since the cannula must have a certain stability, it also has a corresponding wall thickness of at least 0.5 to 1 mm. This in turn means that it is at the base of the conical tip of the introducer or, if this continues over the distal end of the tra Chealkanüle protrudes, at the corresponding shaft portion of the insertion a step-shaped transition from the inner diameter of the cannula to the outer diameter. In other words, the distal end face of the tracheostomy tube is exposed. This in turn means that precisely at the bottlenecks of the tracheostoma, the conical tip initially causes a widening to the inner diameter of the cannula, but the remaining widening must be effected by the end face of the tracheal cannula which is not particularly configured for this purpose. This may result in injury and, in any event, severely complicates insertion of the cannula. Especially with cannulas with thick walls, this abrupt transition can be a real problem. Thus, when trying to insert the cannula, the doctor often sticks to a tracheal brace with the cannula wall. This can lead to a fracture of the cricoid cartilage. Although one could also bevel the edge of the tracheostomy tube in extension of the conical tip, but this means that after removing the insertion and thus the conical tip a relatively sharp-edged inner edge forms the distal end of the tracheostomy tube, in turn, in contact with the sensitive trachea Injuries or wounds cause and thereby causes pain that make the permanent wearing of such a tracheal cannula for the patient even more uncomfortable.

task

Across from This object of the present invention is the object of this prior art underlying, a device for introducing a tracheostomy tube to create with the features mentioned, the risk of injury significantly reduced when introducing the tracheostomy tube and facilitates the introduction process, wherein the cannula thus introduced also has a high wearing comfort with durable use and the risk of injury or soreness in the trachea keeps low.

These Task is solved by that in the tracheostomy tube introduced obturator has a conical tip, the with a paraglider is designed so that the paraglider over the edge of the tracheostomy tube protrudes and thus defuses the cannula edge. The paraglider is so flexible that after placement of the tracheostomy tube with the obturator the obturator with the paraglider from the tracheostomy tube can be pulled out. The paraglider works as an insertion aid and its flexible wall prevents the tracheal canula edge can lead to injuries. Due to the special paragliding materials as well as by the special coating of the paraglider is at Wetting with liquid facilitates the introduction.

Gem. Present invention, the object is achieved by the characterizing Features of the first protection claim solved and advantageous Embodiments acc. supplemented the dependent claims.

The The invention will be described below with reference to the schematic drawings explained in more detail.

It demonstrate:

1 : an insertion aid for cannulas with paraglider

2 : an insertion aid for cannulas with perforated paraglider

3 : an introducer for cannula tubes.

The 1 shows gem. Invention the introducer for cannulas with a paraglider ( 1 ). Into the tracheostomy tube ( 3 ) with flange ( 16 ) is an obturator consisting of an insertion rod ( 6 ) with spacer ( 11 ), by attachment ( 7 ) with a tip ( 2 ) into the cannula tube ( 8th ) inserted. The summit ( 2 ) was at the junction ( 9 ) with a paraglider ( 1 ) firmly bonded. The paraglider surface was coated with a lubricant ( 14 ) Mistake. For air circulation and for a protection of the breathing was in the paraglider ( 1 ), in the top ( 2 ) and the introductory staff ( 6 ) an air hole ( 10 ) incorporated. After pushing the obturator with the tip ( 2 ) and the paraglider ( 1 ) the paraglider ( 1 ) with the covering width ( 4 ) over the cannula tube edge ( 5 ) and defuses the edge when inserted into the trachea ( 17 ). After insertion, the obturator is removed from the tracheostomy tube ( 3 ) pulled out. Due to the flexibility of the paraglider ( 1 ) the umbrella revolves and can pass through the inner tube of the tracheostomy tube ( 3 ) to be pulled. Through the paraglider, the insertion without injury to the trachea ( 17 ).

The 2 shows some special versions of the paraglider ( 1 ) with the tip ( 2 ). The summit ( 2 ) was filled with air grooves ( 12 ) educated. For breathing to circulate, there is a perforation ( 13 ) of the paraglider ( 1 ) required. In the present case, the paraglider surface was equipped with ribs ( 15 ) educated.

In the 3 only a paraglider ( 1 ) without introductory staff ( 6 ) on the cannula tube ( 8th ) to defuse the Kanülenrohrkante ( 5 ) attached cohesively.

1

paraglider

2

top

3

tracheostomy

4

Covering

5

Cannula tube edge

6

launch bar

7

attachment

8th

cannula tube

9

junction

10

air bore

11

spacer

12

air groove

13

perforation

14

slide coating

15

rib

16

flange

17

trachea

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• DE 102005021470 A1 [0005]

Claims (8)

Device for introducing a tracheostomy tube into a tracheostoma with an insertion aid, characterized in that the tip ( 2 ) of the insertion aid with a paraglider ( 1 ) is materially connected and the paraglider ( 1 ) when inserting the insertion aid into the cannula tube ( 8th ) with a covering width ( 4 ) over the cannula tube edge ( 5 ). Device according to claim 1, characterized in that the paraglider ( 1 ) with a lubricious coating ( 14 ) is trained. Device according to claim 1, characterized in that the paraglider ( 1 ) an air hole ( 10 ) owns. Device according to claim 1, characterized in that the paraglider ( 1 ) is made of a flexible material. Device according to claim 1, characterized in that the paraglider ( 1 ) with ribs ( 15 ) is trained. Device according to claim 1, characterized in that the paraglider ( 1 ) based on the flexible material and the covering width ( 4 ) when pulling out the obturator. Device according to claim 1, characterized in that the paraglider ( 1 ) around the top ( 2 ) and contracts due to the elastic bias until the outer diameter is approximately equal to or smaller than the inner diameter of the tracheostomy tube ( 3 ), so that the tip ( 2 ) with the at least partially everted paraglider ( 1 ) through the tracheostomy tube ( 3 ) can be pulled back. Apparatus according to claim 1, characterized in that a sharp cannula tube edge ( 5 ) acc. 3 only with a paraglider ( 1 ) is trained.