WO2017182117A1

WO2017182117A1 - Hollow organ anchoring device

Info

Publication number: WO2017182117A1
Application number: PCT/EP2017/000479
Authority: WO
Inventors: Joachim Georg Pfeffer; Philipp Bruners; Roman IWA
Original assignee: Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen
Priority date: 2016-04-20
Filing date: 2017-04-12
Publication date: 2017-10-26
Also published as: DE102016004811A1

Abstract

The invention relates to a hollow organ anchoring device for fixing hollow organs to an external structure, comprising at least one wire and a guide tube through which the at least one wire can be guided. The wire exiting from the opening of the guide tube forms an archwire perpendicular to the longitudinal axis of the guide tube.

Description

Hollow organ anchoring device

The invention relates to a Hohlorganankervorrichtung for fixing a

Hollow organ on an outer structure, comprising at least one wire and a guide tube, through which the at least one wire can be passed.

In the medical treatment of humans and animals, it is necessary in particular cases in surgical procedures in certain cases, a hollow organ, such as a gullet, a gall bladder, a trachea or a blood vessel, to fix an external structure.

For the purposes of the invention, an external structure is preferably understood as meaning a structure (for example a tissue structure) which lies outside the hollow organ, but in particular also in the body of the patient who has the hollow organ.

The outer structure may be another organ, preferably adjacent to the hollow organ, or another body part or other body part, in particular separating the inside of the body from the outside of the body, e.g. the abdominal wall / abdominal wall.

Thus, for example, the fixation of the stomach on the abdominal wall constitutes a fixation of a hollow organ on an external structure.

CONFIRMATION COPY Furthermore, in endoscopic examinations of a hollow organ, it may be necessary to fix it to an external structure, since hollow organs sometimes have a high degree of flexibility or mobility in the body, which causes a hollow organ to evade in front of the observation instrument. In addition, in surgical procedures, it may be advantageous to partially or completely fix hollow organs to an external structure to maintain access to certain other organs during a surgical procedure.

European Patent Application EP 0 526 721 A1 describes in this

The invention relates to an endoscope in which a hollow organ is fixed to an outer structure, wherein a holding device guided in an outer shaft has a multiplicity of elastically deformable hook elements which can be moved distally out of the shaft and into it. The hook elements are in one embodiment of an elastic wire and have in the region of its distal end an intrinsic pre-bend, which spreads when pushed out of the hook member beyond the distal end of the outer shaft out in the radial direction and forms a hook part. The wall of the hollow organ is fixed in this invention by the radially outwardly projecting straight hook elements to an outer structure. To a large-scale anchor effect of

Hook device to achieve it is provided in this invention, a plurality of hook elements circumferentially on the outer shaft, which are oriented radially from the center of the outer shaft pointing away in different directions.

A comparable anchor device is shown by the document US 3,717,151, wherein the anchor device is used for fixing a catheter which is guided by a hollow organ wall. In this invention, a plurality of wires, which are arranged radially on the outside of a shaft, guided by a puncture device through a hollow organ wall. The wires form after passing through the hollow organ wall radially outwardly projecting

Hook elements, with which a shaft in which a catheter is guided, is attached to the hollow organ wall. The wires accomplish this a spread in the radial direction, so that for a large area, over the full circumference of the Shank extending anchor device, a plurality of wires are provided.

It is therefore the object of the invention to provide a hollow anchor device, which makes it possible to fix a hollow organ by means of a minimum number of wires in a cost-effective, technically simple and minimally invasive manner to an outer structure.

The object is achieved by a hollow anchor device according to claim 1, wherein the leaked from a mouth opening of the guide tube wire forms an archwire transverse to the longitudinal axis of the guide tube.

By forming an archwire, transverse to the longitudinal axis of the

Guide tube runs, is one, the arc length corresponding,

Contact area realized to the hollow organ wall. A transverse to the longitudinal direction formed archwire has in comparison to a radially from

Guide tube led away a larger contact area, so that by means of a single inserted wire a large area

Hollow organ anchor device is provided.

The formation of an archwire which extends transversely to the longitudinal axis of the guide tube thus has the advantage that the contact area between the wire of the hollow organ anchor device and the hollow organ wall is significantly increased and thus the pressure on the tissue of the hollow organ wall is reduced. As a result, injuries and damage to the hollow organ tissue in the area of the guide tube are reduced and thus the invasive effect of the

Hollow organ anchor device is minimized.

An advantageous embodiment of the invention provides that the archwire is adopted automatically by the leaked wire. The wire, which is guided through the guide tube, accordingly forms only after passing through the mouth opening automatically an archwire, which is oriented transversely to the longitudinal axis. To achieve this, the respective wire inner restoring forces

be imprinted, by which the wire from the present in the guide tube extension, in particular a linear forced extension outside the guide tubes is automatically reset / is. The guide tube can thus in one embodiment, the wire artificially straighten against the acting

Restoring forces that can always act in this embodiment, for example.

The guide tube can be shaped in any desired way, preferably linearly extends straight and also has only one diameter, which, in particular when using only one wire at least only corresponds to the diameter of the wire, or just greater. When using multiple wires simultaneously, the inner cross section of the guide tube is adapted to surround the sum of the wires.

The hollow anchor device according to the invention thus advantageously requires a puncture with a minimum diameter, wherein behind the

Mouth opening through the arch wire automatically a large area

Anchor device is formed. The combination of minimal

Puncture diameter and a large contact surface of the arch wire to the hollow organ wall causes the invasive effect of the

Hollow organ anchor device is minimized.

In a particularly advantageous embodiment of the invention, the archwire extends at least 360 ° to a loop center and thus forms a loop, wherein a rear lying in the extension direction second

Loop portion is crossed with a front lying in the extension direction first loop portion at at least one intersection, in particular laterally adjacent to the longitudinal axis. The extension direction of the wire is considered from the guide tube (front) to the leaked out of this end of the wire in the hollow organ (back), in particular thus thus substantially in the viewing direction of a treating surgeon. The introduced into the hollow organ wire end is thus arranged in the rear in this direction of extension. The point of intersection between the first and the second loop portion of the loop may represent a contact point between two portions of the wire, so that upon withdrawal of the wire from the hollow organ, the two portions come into contact with each other at the point of contact. For example, this can cause a frictional resistance.

The crossing of the loop portions therefore offers the advantage that a withdrawal of the wire from the hollow organ through the guide tube is possible only with an increased tensile force and thereby the anchor effect of

hollow organ anchor device according to the invention is improved.

A preferred embodiment of the invention provides that the loop is arranged radially laterally to the longitudinal axis of the guide tube, in particular wherein the plane in which the area enclosed by the loop is located on the

Penetrated longitudinal axis. The longitudinal axis and the plane of the enclosed surface are thus not parallel. Preferably, the longitudinal axis intersects this plane at an angle of 70 to 120 degrees, more preferably from 80 to 100 degrees.

Due to the fact that the plane in which the surface enclosed by the loop lies is penetrated or cut by the longitudinal axis, this plane is inclined relative to the longitudinal axis of the guide tube. The area enclosed by the loop surface is thus inclined to the hollow organ wall, so the wire that forms the loop, comes into contact with the hollow organ wall.

Preferably, the loop, in particular after the automatic formation, thus at least substantially parallel to the hollow organ wall.

Advantageously, the area of contact of the wire with the organ wall is increased by the area enclosed by the loop relative to the longitudinal axis of the guide tube, and thus the pressure on the hollow organ wall forming tissue is reduced, so that injuries to the tissue are reduced in this embodiment of the invention, or alternatively, greater holding forces are exerted can be A particularly advantageous embodiment of the invention provides that the first loop portion before the crossing point from the longitudinal axis of the

Guide tube is angled and with this longitudinal axis forms an angle α, wherein the lying in the direction of extension of the wire back second loop portion is located at the intersection on the side facing the guide tube.

Due to the fact that the second loop section lying in the extension direction of the wire is arranged on the side facing the guide tube at the point of intersection, it is achieved that the second lying behind

Loop portion between the front lying first loop portion and the hollow organ wall is located.

This embodiment advantageously results in that the second

Loop portion is clamped during withdrawal of the wire from the hollow organ between the first loop portion and the hollow organ wall, so that the resistance is increased when pulling out and the anchor effect is thereby significantly improved.

In one embodiment of the invention, it is provided that the first

Loop portion before the crossing point with the longitudinal axis forms an angle having a value of 60 ° to 120 °, preferably 80 ° to 100 °.

In this way, the area enclosed by the loop is oriented substantially perpendicular to the longitudinal axis, so that the hollow organ wall is oriented over the full circumference of the loop as far as possible parallel to the wire.

An at least substantially perpendicular to the longitudinal axis of the guide tube oriented enclosed by the loop surface thus has the advantage that the hollow organ wall at a tensile load with full circumference of the loop

evenly loaded comes in contact, whereby the pressure on the tissue of the hollow organ wall is reduced. A further preferred embodiment of the invention is characterized in that the loop in the first loop portion behind the crossing point has a smaller curvature than the second loop portion.

It is thereby ensured that the first loop portion intersects the second loop portion at the crossing point at an approximately right angle. In addition, the larger radius of curvature of the second wire cut results in a larger area being spanned by the loop.

This embodiment variant of the invention has the advantage that on the one hand the contact area between the loop and the hollow organ wall is increased and that sliding out of the second wire section with respect to the first wire section is made more difficult under tensile loading.

In a further embodiment of the invention, one is above the

Rear end of the wire extending beyond the crossing point is returned as a turn to the loop.

Due to the additional turn, the contact area between the

Hollow organ wall and the wire further increased, so that advantageously under a tensile load less pressure is exerted on the hollow organ wall and thus a threat to the tissue is reduced.

In a further embodiment of the invention, the rear wire end is returned as a turn to the loop such that the rear wire end is disposed on the loop on the side facing the mouth opening.

In such an embodiment, a second crossing point or

Formed crossing area and the rear end of the wire between the loop and the hollow organ wall clamped. In addition, for the area enclosed by the loop, a second area is completely enclosed by a wire, the turn and the portion of the loop between the two points of intersection forming the border of the second area. The advantage of a second crossing point / region lies in the fact that the frictional resistance is again increased in a tensile load by the second intersection point / region and thus the anchor effect of

Hollow organ anchor device is improved. In addition, in this embodiment, the hollow organ wall in the case of a tensile load from the wire of the loop and the turn uniformly pressurized, so that the hollow organ tissue is less stressed.

A further preferred embodiment of the invention provides that the turn formed by the return of the rear wire end to the loop has the at least substantially the same radius of curvature as the second loop portion of the loop, wherein a rear portion of the turn laterally to a second part of the second loop portion is arranged facing the mouth opening.

Because the second loop portion and the turn are the same

Having a radius of curvature, a uniform pressure over the entire circumference of the loop and turn is ensured in a tensile load. This has the advantage that the pressure on the hollow organ tissue is evenly distributed and so the tissue is spared in this way.

In addition, characterized in that a rear portion of the turn is arranged on a part of the second loop portion laterally facing the mouth opening, between the second loop portion and a rear portion of the turn a contact portion created in which the rear portion of the turn between the loop portion and the hollow organ wall is trapped.

Advantageously, this leads to the fact that in a tensile load of

Friction resistance of the wire is significantly increased and thus the

Anchor effect of Hohlorganankervorrichtung is increased.

In a preferred further embodiment variant of the invention, the turn may have a direction of curvature opposite that of the loop, wherein the rear part section adjoins a part of the second loop section is arranged laterally facing the mouth opening. The rear section is preferred in the direction of extension of the wire behind the

Crossing point arranged near the longitudinal axis of the guide tube.

Such an arrangement of the rear portion of the turn leads under tensile load that the rear portion between the second

Loop portion of the loop and the hollow organ wall is clamped.

As a result, the anchor effect of the hollow organ anchor device is advantageously increased. The opposite direction of curvature of the turn also leads to tensile stress to a symmetrical pressure distribution and thus advantageously to a more uniform stress on the hollow organ tissue.

A practicable embodiment of the invention provides that the wire of the hollow organ anchor device consists of a shape memory material, in particular Nitinol is to be used as a shape memory material.

The use of a shape memory material makes it possible to engrave complex geometric figures, such as the hollow organ anchor device according to the invention, onto a wire so that, after passing the wire through the guide tube, a complex geometric figure is automatically generated inside the wire

Hollow organ is formed, or generally where the wire is no longer guided by the guide tube.

In such an embodiment made of shape-memory material, the wire may also be forcibly guided through the guide tube, or be straightened by the guide tube against its impressed restoring forces.

But it can also be provided that the imposed restoring forces in the wire only begin to act when the wire is heated in the body or the organ at the exit from the guide tube. Within the guide tube and thus against heating, however, act in this embodiment, the

Restoring forces not, so that the guide tube leads the wire, but this is not necessarily straightened, as it is below the body / hollow organ achievable forming temperature takes a linear extension selbststätig.

The embodiments of the invention all have the advantage that a

Guide tube with a small diameter minimally invasive by the

Hollow organ wall can be performed and yet in the hollow organ a

large-scale anchor device arises, which is a strain of

Hollow organ wall reduced.

Preferably, the second loop portion of the hollow organ anchoring device has a radius of curvature of 1 mm to 25 mm, with a range of 3 to 10 mm being particularly preferred. Such a selection of the radius of curvature allows the formation of a sufficient contact surface for the attachment of a hollow organ, without increasing the resistance to a tensile load such that the hollow organ wall is damaged when pulled out.

Preferably, in one embodiment of the invention, the wire has a diameter of 0.1mm to 2mm, preferably 0.2mm to 0.5mm. Such a design of the wire diameter allows the formation of a hollow anchor device according to the invention, which achieves a secure anchor effect under normal tensile loads.

In the above and also subsequent embodiments, it is particularly preferred that all of loops, bends or sweeping

enclosed surfaces of a respective wire is arranged completely radially laterally next to the longitudinal axis defined by the guide tube.

The invention may provide that a respective wire in a front region, in particular the remaining until the final positioning in the guide tube, even without the leadership of the guide tube is straight, so thus this straight extension is maintained even after removal of the guide tube.

For a particularly strong anchor effect, an embodiment of the invention provides that at least two wires are guided through the guide tube, the emerged from the guide tube in each case form at least one loop. The respectively formed loops, sweeping, or respectively enclosed thereby surface areas of the wires are preferably in two wires each other

opposite at a radial distance about the longitudinal axis

arranged and preferably more uniform in more than two wires

Angle division arranged around the longitudinal axis, in particular in each case so that none of the surfaces is penetrated by the longitudinal axis, but all surfaces are radially adjacent to the longitudinal axis.

By using multiple wires, the anchor effect of

Hollow organ anchor device increases against a tensile load, since in this way the contact area is multiplied with respect to the hollow organ wall.

This embodiment of the invention has the advantage that even very heavy hollow organs can be securely fixed with respect to an external structure.

To carry out the at least one wire, the guide tube has a diameter of 0.1 mm to 4 mm, preferably 0.5 mm to 2 mm

are provided. A guide tube with such an inner diameter allows the implementation of the wire according to the invention, wherein

Advantageously, a significant impairment of the hollow organ tissue in a puncture is avoided.

In a functionally extended embodiment of the invention, at least one further is provided by the guide tube in addition to at least one wire

Functional element carried, which is for example a cutting tool, a sewing tool and or an optical element.

The carrying of another functional element allows the

Hollow organ anchor device according to the invention to be used in combination with other functional elements for a variety of surgical procedures.

For example, the entrainment of an optical element allows the

Use of the hollow organ anchor device in combination with an endoscope. A further embodiment of the invention provides that the guide tube can be acted upon by a variable temperature, wherein the deformability of the wire is dependent on the temperature.

In this way, the anchor effect of Hohlorganankervorrichtung against a tensile load is variably adjustable. This allows the anchor effect to be adapted to a particular organ or switched on or off as needed. This offers the advantage that an anchoring device can be used variably for a very wide variety of applications.

The hollow organ anchor device according to the invention can preferably be used for the fixation of the stomach to the abdominal wall, in particular in the case of a percutaneous endoscopic gastrostomy or gastropexy.

Embodiments of the invention are illustrated by figures below. Show it:

1 shows an application example of the hollow organ anchor device,

Fig. 2 is a Hohlorganankervorrichtung invention in

perspective view,

Fig. 3 is a Hohlorganankervorrichtung with a loop and a

additional turns in a perspective view, wherein the turn has the same direction of curvature as the loop,

Fig. 4 is a Hohlorganankervorrichtung with a loop and a

additional turns in a perspective view, wherein the turn has an opposite direction of curvature as the loop,

Fig. 5 two hollow organ armature devices according to the invention, which by a

Guide tube are guided.

In Fig. 1, the application of a hollow organ anchor device 1 according to the invention is shown, wherein a wire 2 is guided through a guide tube 3 into the cavity 4 of a hollow organ 5. The hollow organ wall 6 is opposite to the outer Structure 7 fixed by means of the wire 2. The hollow organ 5 is, for example, a gullet, a stomach, a bowel, a gall bladder, a trachea, a blood vessel or a urinary drainage channel which is preferably fixed to an outer structure 7 during a medical treatment, in particular during a surgical procedure.

The hollow anchor device 1 according to the invention is shown in detail in FIG. 2 in a perspective view, wherein the wire 2 passes through the

Guide tube 3 extends in the direction of the wire end 9. The extension of the wire 2 is defined so that the wire end 9 in the direction of extension at the back and the emerging from the mouth opening 8 part of the wire 2 at the front to

Extension direction is arranged.

The hollow organ anchor device 1 is characterized in that the wire 2 is guided through the guide tube 3 and exits from the mouth opening 8 along the longitudinal axis 10 and forms an archwire transverse to the longitudinal axis 10 of the guide tube 3. The embodiment shown in Fig. 2 shows an archwire, which extends at least 360 ° to a loop center 11 and forms a loop 12, wherein a lying in the extension direction of the wire 2 second loop portion 14 with a front in the direction of extension of the wire 2 first Loop section 13 at one

Junction 15 is crossed laterally adjacent to the longitudinal axis 10. The loop 12 is completely radially laterally to the longitudinal axis 10 of the guide tube. 3

arranged. As shown in Fig. 2, the plane is that of the loop

12 enclosed area is penetrated by the longitudinal axis 10, but not the enclosed area. The hollow organ wall 6 arrives

Tensile load in this way with the full extent of the loop 12 in contact and is loaded as evenly as possible in this way.

In the embodiment shown by Fig. 2, the first loop portion

13 angled in the direction of extension of the wire 2 in front of the crossing point 15 with respect to the longitudinal axis 10, wherein the first loop portion 13 at the intersection point 15 with the longitudinal axis 10 forms an angle α. The in Extending direction of the wire 2 rear second loop portion 14 is disposed at the intersection point 15 on the guide tube 3 facing side of the first loop portion 13. In a tensile load on the wire 2 of the second loop portion 14 is between the first

Loop portion 13 and the hollow organ wall 6 is clamped so that the friction resistance significantly increased and the anchor effect of

Hollow organ anchor device is improved.

The angle α has a value of 60 ° to 120 °, wherein a value of 80 ° to 100 ° is preferred. The area enclosed by the loop 12 surface is thus aligned as far as possible parallel to the hollow organ wall 6, so that the loop 12 comes in a tensile load completely with the hollow organ wall 6 into contact and uniformly loaded the tissue of the hollow organ wall.

The embodiment shown in Fig. 2 shows a loop 12 which in the first loop portion 13 in the direction of extension of the wire 2 behind the

Junction 15 has a lower curvature than the second

Loop portion 14. As a result, first loop portion 13 in

Crossing point 15 oriented largely perpendicular to the second loop portion 14 so that slipping is prevented in a tensile load.

3 illustrates a continuation of the invention, which is characterized in that a wire end 9 which extends beyond the point of intersection 15 is returned as a turn 16 to the loop 12. The wire end 9 is arranged in this embodiment on the loop 12 on the side which the

Mouth opening 8 faces. Under tensile load, the wire end 9 is clamped in this way between the loop 12 and the hollow organ wall 6, so that the anchor effect of the hollow organ anchor device 1 is increased.

As shown in FIG. 3, the turn 16 returned to the loop 12 has an at least substantially identical radius of curvature as the second one

Loop portion 14. It is thereby achieved that the wire portion forming the loop 12 and the wire portion forming the turn 16 at Tensile load is applied to a symmetrical pressure distribution and the tissue of the hollow organ wall 6 is evenly loaded.

Preferably, a rear portion 17 of the turn 16, as shown in Fig. 3, to a part of the second loop portion 14 laterally to

Mouth opening 8 arranged facing. Such an arrangement of the portion 17 of the turn 16 results in that the contact area between the turn 16 and the second loop portion 14 is increased, so that at a tensile load of the friction resistance of the hollow organ anchor device 1 is significantly increased.

The turn 16 may in a further embodiment of the invention, as shown in Fig. 4, have a direction opposite to the bend 12 curvature direction, the rear portion 17 to a part of the second

Loop portion 14 is arranged laterally facing the mouth opening 8. The rear section 17 is preferably arranged in the extension direction of the wire 2 behind the crossing point 15. Such an arrangement of the rear portion 17 of the turn 16 results in tensile load that the rear portion 17 is clamped in the region of the intersection point 15 between the second loop portion 14 of the loop 12 and the hollow organ wall 6, so that the anchor effect of Hohlorganankervorrichtung 1 is advantageously increased , In addition, by the opposite

Direction of curvature of the turn 16 in tension a symmetrical

Pressure distribution achieved.

The wire 2 of the hollow organ anchor device 1 is preferably made of a shape memory material. The use of a shape memory material, in particular nitinol, allows complex geometrical figures on the wire

2 impose, resulting in the lead out of the wire 2 from the guide tube

3 automatically form through the mouth opening 8 in an imprinted form. The wire 2 can be guided in this way by a thin guide tube 3 in a cavity 4 of the hollow organ 5 and there form the inventive form of Hohlorganankervorrichtung 1. Preferably, the shape memory material consisting of a wire 2 has a diameter of 0.1mm to 2mm, with a range of 0.2mm to 0.5mm is preferred. This wire thickness advantageously provides a good grip with a conventional tensile load.

As shown here in Fig. 5, it may provide an embodiment of the invention that are guided by the guide tube 3, two (or more) wires 2, which leaked from the guide tube 3 and each form at least one loop 12. By using a plurality of wires 2, which form the loops 12, a contact area to the hollow organ wall 6 is formed, which surrounds the

complete circumference of the mouth opening 8 extends. This offers the advantage that the hollow organ wall 6 is uniformly loaded surface and thus the tissue of the hollow organ undergoes a lower stress.

A non-illustrated embodiment of the invention may provide that at least one further functional element is carried by the guide tube 3 in addition to at least one wire 2, wherein the functional element

For example, a cutting tool, a sewing tool and / or an optical element may be. This embodiment makes it possible to use the hollow organ anchor device 1 according to the invention in a variety of ways during surgical procedures. For example, the inventive

Hollow organ anchor compounds 1 in combination with an optical element is an endoscope.

In addition, it may provide an unillustrated embodiment of the invention that the shape memory material from which the wire 2 is formed, a

Deformability, which depends on a temperature. This could be in

Combined with a guide tube 3, which is acted upon by a variable temperature, are used for the anchor effect of

Hohlorganankervorrichtung 1 variably change and to the respective

Application to adapt. For example, in this embodiment of the invention, a variable change in anchor effect during a surgical procedure is possible. The hollow organ anchor device 1 according to the invention makes it possible to fix a hollow organ 5 to an outer structure 7, whereby a large contact area between wire 2 and hollow organ wall 6 is achieved in a simple manner with minimal invasive effort, so that the hollow organ tissue of the patient is spared.

LIST OF REFERENCE NUMBERS

Hollow organ anchoring device

wire

guide tube

cavity

hollow organ

Hollow organ wall

outer structure

mouth

wire end

Longitudinal axis of the guide tube

Bend center

loop

first loop section

second loop section

intersection

turn

rear section angle

Claims

claims

Hollow organ anchor device (1) for fixing hollow organs (5) to a

outer structure (7), comprising at least one wire (2) and a

Guide tube (3) through which the at least one wire (2) can be passed, characterized in that

the wire (3) leaving a mouth opening (8) of the guide tube (3) forms an archwire transverse to the longitudinal axis (10) of the guide tube (3).

2. Hohlorganankervorrichtung (1) according to claim 1, characterized in that the arch wire by the well-worn wire (2) automatically

is assumed, in particular by the wire impressed internal forces through which the wire from the present in the guide tube linear

Forced extension is reset ..

3. Hohlorganankervorrichtung (1) according to one of the preceding claims, characterized in that the archwire extends at least 360 degrees to a loop center (11) and a loop (12) is formed, so that in the extension direction of the wire (2) behind lying second

Loop portion (14) with a in the extension direction of the wire (2) front lying first loop portion (13) at at least one intersection point (15), in particular laterally adjacent to the longitudinal axis (10).

4. Hohlorganankervorrichtung (1) according to one of the preceding claims, characterized in that the loop (12) is arranged radially laterally to the longitudinal axis (10) of the guide tube (3), in particular wherein the plane in which of the loop (12) enclosed Area lies from the longitudinal axis (10)

is permeated.

5. Hohlorganankervorrichtung (1) according to one of the preceding claims, characterized in that the first loop portion (13) before the

Crossing point (15) is angled out of the longitudinal axis (10) and with this longitudinal axis (10) forms an angle (alpha), wherein the in

Extension direction of the wire (2) lying behind the second loop gate (14) at the intersection (15) on the side facing the guide tube (3).

6. Hohlorganankervorrichtung (1) according to one of the preceding claims, characterized in that the angle (a) has a value of 60 ° to 120 °, preferably 80 ° to 100 °.

7. Hohlorganankervorrichtung (1) according to any one of the preceding claims, characterized in that the loop (12) in the first loop portion (13) behind the crossing point (15) has a smaller curvature than in the second loop portion (14).

8. Hohlorganankervorrichtung (1) according to one of the preceding claims, characterized in that a beyond the crossing point (15) also

extending rear wire end (9) as a return (16) to the loop (12) is returned.

9. Hohlorganankervorrichtung (1) according to any one of the preceding claims, characterized in that the rear wire end (9) as a return (16) to the loop (12) is fed back, that the rear wire end (9) on the loop (12). is disposed on the side facing the mouth opening (8).

10. Hohlorganankervorrichtung (1) according to any one of the preceding claims, characterized in that by returning the rear wire end (9) to the loop (12) formed turn (16) has at least substantially the same radius of curvature as the second loop portion (14) , wherein a rear portion (17) of the turn (16) on a part of the second

Loop portion (14) is arranged laterally facing the mouth opening (8).

11. Hohlorganankervorrichtung (1) according to any one of the preceding claims, characterized in that the wire (2) consists of a shape memory material, in particular nitinol.

12. Hohlorganankerverbindung (1) according to one of the preceding claims, characterized in that the second loop portion (14) has a

Curvature radius of 1 mm to 25 mm, preferably 3 mm to 10 mm.

13. Hollow organ anchor device (1) according to one of the preceding claims, characterized in that the wire (2) has a diameter of 0.1 mm to 2 mm, preferably 0.2 mm to 0.5 mm.

14. Holloworganankervorrichtung (1) according to any one of the preceding claims, characterized in that at least two wires (2) are guided by the guide tube (3) emerging from the guide tube (3) each form at least one loop (12), in particular the have the same looping property.

15. hollow organ anchor device (1) according to one of the preceding claims, characterized in that the guide tube (3) has an inner diameter of 0.1 mm to 4 mm, preferably 0.5 mm to 2 mm, in particular by a puncture needle is formed.

16. Hohlorganankervorrichtung (1) according to one of the preceding claims, characterized in that at least one further functional element is entrained by the guide tube (3) in addition to at least one wire (2), for example a cutting tool, a sewing tool and / or an optical element.

17. Hollow organ anchor device (1) according to one of the preceding claims, characterized in that the guide tube (3) can be acted upon by a variable temperature, wherein the deformability, in particular the

Loop forming characteristic of the wire (2) depends on the temperature.

18. wire (2) after passing through a guide tube (1) together with the guide tube (1) forms a Hohlorganankervorrichtung according to any one of the preceding claims.