DE102007017890B4 - An assembly and kit for a device for optically marking a portion of a body organ - Google Patents

Abstract

Arrangement with: - an endoscope and - a device arranged in the endoscope for optically marking a section of a body organ, in particular the stomach or intestine, with - a light guide device (3) which is configured to couple light from a light source (1) To guide the light entry end (4) to a light exit end (5), and - an end piece (7) which is coupled to the light guide device (3) and light received from the light exit end (5) via a light exit opening arranged distal to the light exit end (5) 8) is formed releasing, an anchoring device (9) being configured on the end piece (7) adjacent to the light exit opening (8), which is configured to be anchored to the body organ, and wherein the light guiding device (3) at least in sections guided in a casing (6) and arranged displaceably in the casing (6).

Description

The invention relates to an arrangement and kit for a device for optically marking a portion of a body organ, in particular stomach or intestine.

Background of the invention

For the purposeful and correct execution of medical treatments or examinations, appropriately adapted medical devices are usually used for the respective purpose. This is especially true for surgical procedures on body organs of living beings, which are usually performed with medical device, which is designed constructively for the respective surgical procedure in a suitable manner.

A well-known in various embodiments examination method is endoscopy, examined in the medical field generally internal cavities by means of imaging or even manipulated. For example, with the help of endoscopy, the inside of a gastric lumen can be examined endoscopically in order to localize findings that are not visible laparoscopically from the outside. The laparoscopy, which is part of the medical examination procedure, serves to mirror the abdominal cavity and to inspect the stomach from the outside. Other well-known medical methods include, for example, indirect palpation intra- and extraluminal, ultrasound examinations, endoscopic, intraluminal, submucosal tattooing and diaphanoscopy, which is performed by means of a light source of an endoscope.

From the document US 5,832,929 a device is known, which comprises a handpiece for optical tissue treatment at the heart and an image recording device with which a treatment area can be illuminated on heart walls for image acquisition. The handpiece is part of a laser surgical device, which also provides the necessary for tissue treatment high-energy laser radiation available.

In the document US 4,832,444 a light transmission device is disclosed in which laser light generated by a laser light source is passed through an optical conductor, which in turn is arranged in a channel through which a gas can flow. On the output side, the channel is closed by a cover, through which the laser light can emerge in the open state. To avoid damage by protruding cover parts is provided to make the channel surrounding the optical conductor sufficiently long.

There is a need for suitably adapted equipment for the combination of different examination and treatment methods.

Summary of the invention

The object of the invention is to provide an arrangement and a kit for a device for optically marking a section of a body organ, in particular stomach or intestine, which make it possible to carry out desired medical treatment and examination methods.

This object is achieved by an arrangement and a kit for a device for optically marking a portion of a body organ according to the independent claims 1 and 2. Advantageous embodiments of the invention are the subject of dependent subclaims.

By means of the invention, an arrangement is provided which can be used in conjunction with a variety of medical procedures, whether for diagnosis or treatment, to optically mark a region of a body organ. With the help of the light guide is brought into this coupled light to a section of interest of the body organ. The anchoring device formed on the end piece ensures that the light exit opening formed adjacent thereto can be fixed in the region of interest with sufficient positioning accuracy. By means of the anchoring device, the tail is anchored to the body organ. About the light exit opening, the exiting light is thrown onto the portion of the body organ, in which the tail is anchored. The section of interest is hereby optically marked. With the aid of other imaging methods, the optically marked area can then be captured and optionally further investigated. An optical marking of an area to be operated can also be achieved in this way.

The light guide is guided at least in sections in a sheath. Regardless of the provision of the sheathing, the light-guiding device is embodied in an expedient embodiment as a light-conducting cable. The sheath used in this context is made of an elastically deformable material, which allows a bending of the optical fiber cable.

The light-conducting device is arranged displaceably in the casing. This makes it possible in particular, the light exit end of the light guide during optical marking in a to arrange desired relative position to the tail. When the light exit end is positioned at a distance behind the light exit opening of the end piece, the light emerging from the light exit end passes through the remaining section of the end piece to the light exit opening. As a rule, reflections will also occur on the inner wall of the end piece. It can also be provided to provide in the tail optical elements that forward the light emerging from the light exit end. For example, optical lenses may be integrated in the tail. With the help of the displaceability of the light guide in the sheathing, the distance between the light exit end and the optical elements can then be adjusted.

With the help of the created arrangement, a number of points of light can be gradually formed on the body organ, which delimit a section of the body organ of interest.

The optical marking made in the body organ becomes visible on the outer wall of the body organ by shining the emitted light through the wall of the body organ. An internal finding of the body organ is projected outwards. The optical marking can be carried out with the aid of the device with high accuracy. There is a very accurate localization of the section of interest. As a result, a total tissue-friendly treatment is possible.

A preferred embodiment of the invention provides that the anchoring device is formed with an anchoring crown, which is optionally provided with end anchoring points. The anchoring crown is preferably formed at the front end of the tail. When forming the end piece with a substantially constant cross-section in the longitudinal direction of the anchoring crown is formed by means of anchoring prongs, the end protrude from. In this way, in particular catching of the end piece during insertion into and during removal from the body organ is avoided. Regardless of the specific embodiment of the anchoring device, it is preferable to provide them with anchoring means, which anchor when the tail is brought in the direction of the longitudinal extent of the tail on the portion of the body member with this, and which detach from the anchor, when the end piece is moved back substantially in the longitudinal direction of the tail from the portion of the body organ. Conveniently, the anchoring means is further configured to stably anchor against lateral movement in the body organ.

In an expedient embodiment of the invention can be provided that the anchoring device is at least partially encompassing the light exit opening.

An advantageous embodiment of the invention provides that the tail is releasably coupled to the light guide, if necessary, in the region of the light exit end. In this way it is possible, depending on the application, to use different end pieces with one and the same light guide. For example, a kit for the device for optical marking may have a plurality of end pieces, which differ in particular with regard to the specific configuration of the anchoring device, for example with regard to the prong shape or size.

A preferred development of the invention provides that an outer circumferential surface of the casing is formed in alignment with an outer surface of the end piece. In this embodiment, light guide device with casing and tail are formed in the longitudinal direction with substantially the same thickness. Laterally projecting sections are avoided. This makes it easier to guide the light-guiding device with coupled end piece in an endoscope to the location of the optical marking, without causing hooking in the endoscope.

In an expedient embodiment of the invention, it can be provided that an end portion of the end piece facing the casing engages at least partially into the casing by at least partially inserting the end portion into the casing. The sheath facing the end portion of the tail is inserted in this way in the sheath. A screwing can also be provided.

An advantageous embodiment of the invention provides that the light exit end is displaceable in the end piece in the longitudinal direction of the end piece, if necessary, with an end face of the light exit end to in the region of the light exit opening. Thus, the front end of the light exit end can be positioned as needed in the light exit opening.

An advantageous embodiment of the invention provides that in the region of the light entry end, a handpiece is formed. With the help of the handpiece, the advancement or retraction of the light-conducting device during insertion into the body organ during positioning for optical marking and when removing can be carried out in a simple manner by the user, even if this example, wearing surgical gloves. An arrangement of the handpiece in a region adjacent to the light entry end may alternatively be provided.

Description of a preferred embodiment of the invention

The invention will be explained below with reference to a preferred embodiment with reference to figures of a drawing. Hereby show:

1 a device useful for optically marking a portion of a body organ and;

2 an enlarged view of an end piece with anchoring device for use in the arrangement according to 1 ,

1 shows an arrangement with a light source 1 and an optical coupling 2 over which the light source 1 to a light guide 3 is coupled. At the light source 1 is in the illustrated embodiment, a laser light source. But other light sources may be used, such as a halogen lamp or a light emitting diode. About the optical coupling 2 , which is equipped for example with a screw or a plug connection, that of the light source 1 emitted light in a light entry end 4 the light guide 3 coupled and in this to a light exit end 5 directed. The light guide 3 is designed as a light guide or optical fiber and in the illustrated embodiment of a sheath 6 surrounded by a flexible material.

At the light exit end 5 the light guide 3 is a tail 7 coupled, of which in 1 In addition, an end portion is shown enlarged. That through the light exit end 5 escaping light passes through the tail 7 to a light exit opening 8th , in turn, from an anchoring crown 9 is surrounded. With the help of the anchoring crown 9 can the tail 7 after insertion into the body organ of interest, for example, in connection with an endoscope, be positioned anchoring on the inner wall of the body organ.

With the help of a handpiece 10 can the fiber optic cable in the sheath 6 be moved. In this way, then the light emission end 5 in the tail 7 relative to the light exit opening 8th positioned. The diameter of the casing 6 is for example about 3.75 mm.

The light guide 3 is about the optical coupling 2 detachable to the light source 1 coupled. After use, the preferably designed as a disposable article combination of light guide so 3 and sheath 6 be disposed of.

2 shows an enlarged view of the tail 7 with anchoring crown 9 ,

Claims (11)

An arrangement, comprising: an endoscope and a device arranged in the endoscope for optically marking a section of a body organ, in particular a stomach or intestine, with a light-conducting device ( 3 ), which is configured to emit light from one to a light source ( 1 ) coupling light entry end ( 4 ) to a light exit end ( 5 ), and - an end piece ( 7 ), which to the light guide ( 3 ) and out of the light exit end ( 5 ) received light over a distal to the light exit end ( 5 ) arranged light exit opening ( 8th ) is formed, wherein at the tail ( 7 ) adjacent to the light exit opening ( 8th ) an anchoring device ( 9 ) configured to be anchored to the body organ, and wherein the light guide (10) 3 ) at least in sections in a sheath ( 6 ) and in the casing ( 6 ) is arranged displaceably. Arrangement according to claim 1, characterized in that the anchoring device ( 9 ) is formed with an anchoring crown, which is optionally provided with end anchoring points. Arrangement according to claim 1 or 2, characterized in that the anchoring device ( 9 ) the light exit opening ( 8th ) is formed at least partially encompassing. Arrangement according to one of the preceding claims, characterized in that the end piece ( 7 ) detachable to the light guide ( 3 ) is coupled. Arrangement according to one of the preceding claims, characterized in that an outer circumferential surface of the casing ( 6 ) in alignment with an outer surface of the tail ( 7 ) is formed. Arrangement according to one of the preceding claims, characterized in that one of the sheaths ( 6 ) facing end portion of the end piece ( 7 ) at least partly in the sheath ( 6 ) engages by the end portion at least partially in the sheath ( 6 ) is inserted appropriately. Arrangement according to one of the preceding claims, characterized in that the light exit end ( 5 ) in the tail ( 7 ) in the longitudinal direction of the tail ( 7 ) is displaceable. Arrangement according to one of the preceding claims, characterized in that in the region of the light entry end ( 4 ) a handpiece ( 10 ) is formed. Kit for the device for optically marking a section of a body organ in the arrangement according to one of the preceding claims, comprising: - a light-conducting device ( 3 ), which is configured to emit light from one to a light source ( 1 ) coupling light entry end ( 4 ) to a light exit end ( 5 ), - one to the light guide ( 3 ) detachably coupled tail ( 7 ) and - at least one other, to the tail ( 7 ) similar or structurally differing from this tail, which to the light guide ( 3 ) can be releasably coupled. Kit according to claim 9, characterized by a light entry end ( 4 ) of the light-conducting device ( 3 ) coupling light source ( 1 ). Kit according to claim 9 or 10, characterized by a in the region of the light entry end ( 4 ) to the light guide ( 3 ) can be coupled or formed on this handpiece ( 10 ).

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