Classifications

• • 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
  • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
  • A61M16/04—Tracheal tubes
  • A61M16/0402—Special features for tracheal tubes not otherwise provided for
  • A61M16/0409—Special features for tracheal tubes not otherwise provided for with mean for closing the oesophagus
• • 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
  • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
  • A61M16/04—Tracheal tubes
  • A61M16/0402—Special features for tracheal tubes not otherwise provided for
  • A61M16/0418—Special features for tracheal tubes not otherwise provided for with integrated means for changing the degree of curvature, e.g. for easy intubation
• • 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
  • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
  • A61M16/04—Tracheal tubes
  • A61M16/0402—Special features for tracheal tubes not otherwise provided for
  • A61M16/0431—Special features for tracheal tubes not otherwise provided for with a cross-sectional shape other than circular
• • 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
  • A61M2207/00—Methods of manufacture, assembly or production

Definitions

• the present invention relates to a method for assembling two assemblies for forming a laryngeal mask, the first assembly comprising the head of the laryngeal mask with a preassembled supraglottic tube, the tube having at least one respiration lumen and a guide lumen, and the second assembly comprising a preassembled control unit consisting of a union nut in which a screwable tensioning pin is displaceable relative to the distal end of the tube and on which a pressure member in the form of a link chain and a flexible tension member attack, wherein during assembly of the link chain with the tension member, the second assembly, this in the Guide lumen is inserted in the tube of the first assembly.
• a laryngeal mask with supraglottis schematic tube with several lumens is known, of which one Respiratory lumen of the ventilation air supply and the instrumentation is used. Another lumen serves as a guide lumen in which a guide means for changing the radius of curvature of the tube is stored.
• the guide means consists of a pressure member consisting of a link chain having a continuous dorsal wall and having various interruptions in the ventral wall, so that the link chain can be correspondingly curved by means of a flexible pulling member.
• This known laryngeal mask has a nut on the distal end of the supraglottiseal tube, in which a traction pin is displaceable relative to the distal end of the supraglottiseal tube.
• the head of the laryngeal mask and the supraglottic tube may be integrally formed or consist of two parts that are already preassembled.
• the head of the laryngeal mask together with the supraglottic tube form a first assembly.
• the second module is already assembled today by conventional method on a rotary indexing machine with various stations.
• This second assembly which forms a control unit, comprises a union nut in which a screwable tensioning pin is screwed in a first station.
• a white station then an air connection part is added with a socket in which the supraglottic tube is finally inserted.
• On flexible tension member is inserted from the distal side into the pull pin.
• the link chain is fed from the proximal side, wherein the pulling member is guided in a channel passing through the various members chain parts until a Spreitzelement engages the end of the tension member in the proximal end member of the link chain.
• the second module is completely pre-assembled.
• the assembly of the first module with the second module seemed previously only possible manually.
• the parts of the second assembly consist of relatively pressure-resistant plastic parts made predominantly of polyethylene or polypropylene or similar plastics, while the parts of the first assembly, the head of the laryngeal mask and the supraglottic tube of rubber-like TPE Plastic are made.
• the plastics of this plastic mating of the parts that must be assembled here have completely different physical properties. While the first assembly is hardly dimensionally stable, the second assembly is dimensionally stable in the items with the exception of the elongated link chain and the tension member, which purely purely functional, must be extremely flexible but inelastic.
• the link chain together with the traction element must now be inserted into the guide lumen in the supraglottic tube.
• the first object is achieved by a method of the aforementioned type with the characterizing features of claim 1.
• a device suitable for this purpose has the features of claim 7. Further preferred embodiments of the method are apparent from the dependent claims as well as preferred embodiments of the inventive device the dependent claims which refer, directly or indirectly, to the independent device claim.
• Fig. 1 - 5 show the individual steps of the
• Fig. 1 the traction pin in perspective view.
• this pull pin is inserted in a union nut while the
• Connecting piece for the supraglottic tube shows.
• FIG. 4 shows the traction member pushed in from the distal direction in the proximal direction
• Link chain shown in insertable position of the first insertion movement.
• a tensile tenon 10 is shown as a first component of the second assembly to be formed.
• This traction pin 10 has an annular wall 11 with an external thread 12 mounted thereon. The distal end of this annular wall 11 is closed by a cover surface 13, not shown here, indicated by an arrow.
• a cover surface 13 In the top surface 13 are two passage openings, provided by the two molded bushing 14, 15, wherein the bushing with the larger diameter forms the respiratory nozzle 14, while the kinked extending Osophagialstutzen 15 has a smaller diameter.
• these two sockets 14, 15 are visible.
• a small, rectangular in cross section through opening 16 is present, which opens in the region of a rectangular Aufnähmeverianaung 17.
• the pull pin 10 is now screwed into a union nut 20.
• This union nut 20 has an internal thread not visible here, which is suitable for the external thread 12 of the pull pin 10.
• the distal end of the cap nut has a plurality of circumferentially distributed spring tongues 21, which have directed towards the center locking ribs 22.
• a so-called air connector 30 is now inserted into the traction pin 10, this air connector 30 has a round disc at the proximal end of a connecting piece for the supraglotti Fixus tube is present, while at the distal end of a respiratory tube section is formed, the respiratory 14th pierces the pull pin 10 in the mounted state and protrudes from this.
• An esophageal tube section which is likewise present on the distal side engages in the assembled state in a sealing manner into the esophageal stub 15 of the pull pin 10.
• the circular disc of the air connection part 30 is encompassed by the spring tongues 21 in the mounted state and the locking ribs 22 hold this disc within the union nut 20.
• This assembly step is carried out by purely translational linear assembly of the air connection part 30 in the union nut 20.
• This tension member consists essentially of an elastic rod 41 with rectangular cross section.
• the elastic rod 41 has at the distal end an anchoring plate 42. In the fully inserted state of this anchoring plate is on the distal side of the visible in Figure 4 top surface 13 of the pull pin 10 at. At the proximal end, the elastic rod 41 has a thickened anchoring head 43.
• Anchoring plate 42 can be held in position in the mounting device during the next steps, but it is also possible to provide the anchoring plate 42 with locking means which irreversibly engages in the complete insertion of the tension member 40 in the tensioning pin 10 in this.
• the tension member 40 is shown mounted in the tensioning pin 10.
• the link chain 50 On the tension member 40, the link chain 50 is now postponed.
• the link chain 50 has a first long, rigid member 51 on which a continuous dorsal wall 53 then follow the other, much shorter members 52 of the link chain 50.
• a ventral wall 54 is interrupted between each two adjacent members 51, 52.
• Below the dorsal wall 53 extends over the entire length of the link chain 50, a channel which serves as a guide channel 55 for the tension member 40.
• Lateral bridges 56 engage over this channel 55 to guide the tension member 40 in the channel 55 secured.
• the proximal end member 52 has Locking means 57, which is the anchoring head 43 as soon as the pulling member 40 is fully inserted, able to hold irreversible.
• Figure 5 could represent the fully assembled position of the second assembly.
• the first assembly may, as already mentioned, either consist of two preassembled parts or, as shown here in FIG. 7, be made in one piece.
• This first assembly consists of a Larynxmaskenkopf 1 and integrally formed thereon supraglottic tube 2. Die Embodiment of the laryngeal mask head 1 shown here corresponds to an embodiment as described in document 02013/182480, while the supraglottic tube 2 shown here is described in document WO2013 / 182 57.
• the larynx mask head 1 with the supraglotti Hairus tube 2 is now referred to as the first assembly A, while the second assembly B of five parts, namely tenon 10, union nut 20, air connector 30, tension member 40 and link chain 50 has been formed is.
• the mounting device according to the invention also consists essentially of two parts of the device, namely a stationary device part 100 and a movable device part 200.
• a stationary device part 100 and a movable device part 200.
• This simplified illustration shows in principle only these two parts wherein the stationary part 100 of the device is fixedly held on a tripod, while the second, movable member 200 is rotatably guided on a frame 201 about a pivot axis 202. This was deliberately all Drive systems, control systems and electrical and hydraulic feeders omitted.
• FIG. 11 shows a solution in which the supraglottic tube runs in a curved manner, during the merging of the two assemblies A and B.
• two mold parts are shown, which serve to support the supraglotti Hair tube 2 by means of two mold parts 102 and 103 in a curved extending shape.
• corresponding recesses are formed in which the tube 2 can be kept clamped.
• This curved shape of the tube 2 during assembly is preferred since this results in lower frictional forces of the link chain 50 in the guide lumen of the tube 2 during assembly.
• the actual clamping member 104 is shown with the first assembly A held during assembly.
• the clamping member 104 has a housing 105 in which two counter-driven Sehl itten 106 are hydraulically or electromechanically operated out and on each of which a holding jaws 107 is guided. These two holding jaws 107 then surround the tube 2 of the first assembly A.
• Much more complex is the movable part of the mounting device 200.
• This movable part 200 has two side cheeks 201, wherein a pivot arm 202 at one of both side cheeks 201 attacks.
• the side cheeks 201 are provided along their lower edge with a curved course, which corresponds formally to the curvature Ver1auf the link chain 50, which is to be inserted into the supraglottic tube 2.
• a plurality of support beams 203 are mounted along this lower edge perpendicularly projecting therefrom.
• a holding device 204 is mounted on a first, generally slightly wider support beam 203.
• This holding device has two driven, counter-moving retaining cheeks 205.
• the retaining cheeks 205 move linearly toward one another or toward each other. run apart linearly.
• the retaining cheeks 205 hold the second subassembly B in the region of the connection stub 31 of the air connection part 30.
• two pivotable clamping jaws 206 movable toward each other are mounted in a pivotable manner.
• the pairs of clamping jaws 206 which can be pivoted towards one another in pairs, enable the link chain 50 to be held over a large part of the entire course.
• the jaws 6 are shown in the closed state. Only the foremost jaw, which is closest to the retaining cheeks, is already open again. This foremost clamping jaw serves only to keep the foremost, longest link of the link chain 50 exactly in position during the sealing of the clamping jaws 206 in order thereby to secure the course of the further links of the link chain 50 in the correct position, so that the further clamping jaws 206 capture the link chain in its correct course can .
• the proximal foremost chain link projects out of the foremost clamping jaw 206 in the proximal direction. This position is now shown in FIG.
• FIG. 11 will now be skipped to explain the procedural steps for assembling the two assemblies A and B with reference to FIGS. 12-14.
• the foremost lying member of the link chain 50 is shown in the figure 11 in the not yet introduced state. It can be seen that the two straight edges of the side cheeks 201 run horizontally one and vertically the other side.
• the movable part 200 is now pivoted through a first angle until the clamping jaw 206 arranged in the proximal direction rests virtually up against the distal end of the tube 2 of the assembly A.
• the pivotal movement of the movable member 200 is stopped and the foremost jaw 206 is now opened.
• the last still closed clamp is opened and the pivoting movement of the movable part 200 continues until the longest straight edge in the side cheek 201 extends in the horizontal direction and the last link of the link chain 50 is exactly aligned with the straight running portion of the tube 2 or. the link chain is fully inserted into the tube 2.
• the entire assembly of all parts into a finished laryngeal mask can now be realized in less than 10 seconds.
• the assembly of the second module can be in a rotary indexing machine, which has a rotary table with several stations arranged around it in about 4 - 5 seconds realize.
• the erfindungsgetnässe method for assembling the first and second module A or B needed in a single station about 8 - 10 seconds. Looking at two such mounting devices, the assemblies can be assembled at the same speed as the second assembly needed for assembly. This is almost 10 times faster than a handmade version.
• stepwise assembly always leads to the fact that the highly elastic TPE of Larynxmaskenkopfes and the tube can relax during the short holding times, so that virtually no jamming of the second assembly B in the guide lumen of the tube 2 of the assembly A occurs during assembly.

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• Health & Medical Sciences (AREA)
• Pulmonology (AREA)
• Heart & Thoracic Surgery (AREA)
• Engineering & Computer Science (AREA)
• Anesthesiology (AREA)
• Biomedical Technology (AREA)
• Emergency Medicine (AREA)
• Hematology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Prostheses (AREA)
• Orthopedics, Nursing, And Contraception (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=55182294

Family Applications (1)

Country Status (2)

Citations (5)

• 2015
  • 2015-02-02 CH CH00125/15A patent/CH710729B1/de unknown
• 2016
  • 2016-01-06 WO PCT/EP2016/050107 patent/WO2016124347A1/de active Application Filing

Patent Citations (6)

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