DE202019102362U1 - Device for removing wound secretions from body cavities - Google Patents

Abstract

Device for removing secretions from body cavities (1), comprising an open-pore receiving body (2) for receiving secretion from a body cavity and at least one conduit means (3) for discharging secretions from the receiving body (2), the receiving body (2) being a The receiving body (2) is made of a biodegradable material, at least one section (3A) of the conduit means (3) being arranged in the receiving body (2).

Description

The invention relates to a device for removing wound secretions from body cavities. It also relates to a kit which is suitable for removing wound secretions from body cavities. The device and the kit are particularly suitable for the permanent removal of wound secretions from body cavities.

Wound secretions are mostly watery secretions that can leak out of a wound due to an injury. The composition of the wound secretions, which are mainly fed from the intercellular spaces, can vary widely. It mainly contains additions of serum proteins and traces of blood components. In the event of an infection, wound secretions also contain increased amounts of macrophages, which are supposed to eliminate the microorganisms. This can be associated with the development of pus. If the wound secretion is not removed from an inflamed body cavity, this leads to the formation of abscesses.

Various devices are used in practice to remove wound secretions from body cavities. The use of drainage hoses, abdominal towels or smaller sponges is known.

However, the known devices are associated with disadvantages. The use of drainage tubes very quickly leads to the formation of channels in the body cavity. The wound secretion that is located in the body cavity and is created is thus only sucked off if it is in the vicinity of such a channel. Otherwise it remains in the residual body cavity. Drainage tubes are therefore not suitable for the permanent and as complete as possible suction of wound secretions. Drainage hoses are mostly made of silicone.

As a rule, abdominal towels are rectangular layers made of cotton or a comparable soft and absorbent material that are inserted into the body cavity. The absorbent material absorbs the wound secretion that is in the body cavity or is created. Naturally, however, such a belly cloth has only a limited capacity for absorbing body fluids. For this reason, it is necessary to remove the belly cloth from the body cavity after a certain period of time and to replace it with a new one. This replacement of the abdominal cloths is associated with a surgical procedure and permanent anesthesia, which can adversely affect the physical and psychological state of the patient. In addition, the practitioner who inserts an abdominal cloth into a body cavity has to ensure that it is replaced before its capacity is actually exhausted. For this reason, the practitioner has to speculate when this will be the case.

Out EP 1 674 127 A1 a device for removing wound secretions from body cavities is known. The device has a foam body made of a polyurethane. Between layers of this foam body, a section of a tube is inserted, with which wound secretion that enters the foam body from the body cavity can be removed from the foam body. However, an operative procedure is provided to remove the foam body from the body cavity.

No system is known from the prior art that enables permanent and complete removal of wound secretions from body cavities without the need for multiple surgical interventions.

The object of the invention is to eliminate the disadvantages of the prior art. In particular, a device is to be specified which, on the one hand, enables permanent and complete removal of wound secretions from the entire body cavity and, on the other hand, enables the device to be easily adapted to the size of the body cavity with as few operations as possible. Furthermore, a kit for producing such a device is to be specified.

This object is achieved by the features of claims 1, 11 and 15. Expedient configurations of the inventions result from the features of the subclaims.

According to the invention, a device for removing wound secretions from body cavities is provided, which has an open-pore receiving body for receiving secretion from a body cavity and at least one conduit means for discharging secretion from the receiving body, the receiving body being a receiving body made of a biodegradable material and wherein at least a portion of the conduit means is arranged in the receiving body. The device according to the invention enables a wound secretion to be removed from a body cavity by means of the receiving body. For this purpose, the receiving body can be introduced into a body cavity. The receiving body is a three-dimensional body.

The open-pore receiving body can consist of a foam. The foam can be a disordered foam or a foam with a defined pore structure. The receiving body preferably consists of a foamed material, a printed material or a knitted material. If the receiving body consists of a printed material, the receiving body can be produced by means of 3D printing. The production of the receiving body by means of 3D printing is particularly advantageously suitable for producing a foam with a defined pore structure. The knitted material can be a fiber knitted fabric, for example a mesh knitted fabric. The knitted material has open pores. The receiving body can for example be a one-piece receiving body; a containment body having one or more layers that form the containment body; or act as a receiving body made of a knitted fiber fabric.

The receiving body can be a molded body. For example, a receiving body made of a printed material or a vilified material can be regarded as a molded body. A receiving body made of a knitted material can also be regarded as a molded body.

It can be provided that the biodegradable material consists of one or more hydrolytically and / or enzymatically cleavable polymers. The polymers can each be homopolymers or copolymers. Preferably, the biodegradable material is selected from the group consisting of polyesters, polyamides, polycarbonates, polyanhydrides, polyureas, polyurethanes, polylactones, copolymers thereof and mixtures thereof, more preferably from the group consisting of polyesters, polyamides, polycarbonates, polyanhydrides, polylactones, Copolymers containing this compound and mixtures thereof. The term “copolymers containing these compounds” relates in particular to copolymers of polyesters, polyamides, polycarbonates, polyanhydrides and / or polylactones and to copolymers containing polyesters, polyamides, polycarbonates, polyanhydrides and / or polylactones on the one hand and urethanes and / or Urea compounds contain on the other hand.

A preferred polylactone is selected from the group consisting of L-, D-, D / L-polylactides, polyglycolides, polydioxanones, poly-ε-caprolactones, copolymers which contain these compounds, and mixtures thereof. The expression “copolymers which contain these compounds” relates in particular to copolymers of L-, D-, D / L-polylactides, polyglycolides, polydioxanones and / or poly-ε-caprolactones as well as copolymers of L-, D-, D / L-polylactides, polyglycolides, polydioxanones and / or poly-ε-caprolactones on the one hand with other polymers such as polyethylene glycol or with urethane and / or urea compounds. The copolymers with a polylactone on the other hand and a urethane and / or urea compound on the other hand can be block copolymers.

The biodegradable material is particularly preferably selected from the group consisting of poly (L-lactide-co-D, L-lactide), poly (L-lactide-co-glycolide), and poly (D, L-lactide-co-glycolide ), Poly (L-lactide-co-ε-caprolactone), poly (L-lactide-co-dioxanone), poly (L-lactide-co-glycolide-co-dioxanone), poly (ε-caprolactone-co-glycolide -co-dioxanone), poly (glycolide-co-dioxanone), poly (L-lactide-co-ε-caprolactone) and poly (L-lactide-co-trimethylene carbonate), copolymers which contain these compounds, and mixtures thereof .

The polylactone preferably has a weight-average molar mass of 20,000 to 2,000,000 g / mol.

A biodegradable material is understood to mean, in particular, a material that is broken down in a physiological environment, for example a body cavity. The degradation leads to the fact that the receiving body loses its mechanical integrity. The biodegradable material is thus broken down by the body itself. It doesn't need to be removed in another operation. The breakdown products are absorbed by the body.

The receiving body is an open-pore receiving body. For this purpose, the biodegradable material can have open pores. The open pores are interconnected. The open-pored receiving body thus has interconnecting pores. The biodegradable material from which the receiving body is made can, for example, have a pore size of 5 to 100 ppi. It can have a bulk density of 5 to 200 kg / m ³ . In one example, the biodegradable material from which the receiving body is made has a pore size of 10 to 75 ppi and / or a bulk density of 14 to 75 kg / m ³ . Due to its pores, the receiving body is absorbent. The receiving body is also preferably elastic. The receiving body is a three-dimensional body.

An example of a biodegradable material is the polymer sold under the trade name “Resomer”, which is commercially available from Evonik Nutrition & Care GmbH, DE.

The line means can be a tubular and / or hose-shaped line means. The conduit means has at least one section which is formed in the receiving body. This section is also referred to below as the “inner section”. The conduit means can have a second section which is located outside of the receiving body. This section is also referred to in the following as “external Section "designated. Secretion that enters the inner section of the conduit from the receiving body passes from the inner section into the outer section and can thus be removed from the receiving body and thus the body cavity. The conduit means may have open ends, a first open end being formed on the inner section and a second open end being formed on the outer section. The second open end can be connected to a suction pump or to some other device for generating a negative pressure, so that a negative pressure can be generated in a body cavity into which the receiving body is introduced.

It can be provided that a recess is formed in the receiving body, into which the inner section of the conduit means can be or is inserted. This recess can be a placeholder shape. Such a placeholder shape can for example be formed in the receiving body if the receiving body is produced by means of 3D printing. It can also be provided that the inner section of the conduit means is produced together with the receiving body by means of 3D printing during the production of the receiving body. The inner section of the conduit means can be connected to the outer section of the conduit means.

1. a) zumindest zwei aufeinanderliegende Lagen eines Aufnahmekörpers aus biodegradierbarem Material,, und
2. b) zumindest ein Leitungsmittel, dessen innerer Abschnitt zwischen zwei benachbarte Lagen des Aufnahmekörpers eingebracht ist.

It can be provided that the receiving body has at least two superposed layers. However, it can also be provided that the receiving body consists of only one layer. In one embodiment, the device according to the invention has:

1. a) at least two superimposed layers of a receiving body made of biodegradable material ,, and
2. b) at least one conduit means, the inner section of which is introduced between two adjacent layers of the receiving body.

The first section of the conduction means can be introduced between two adjacent layers of the receiving body, the second section of the conduction means being located outside the layers. The second section is expediently connected to a suction pump or to some other device for generating a negative pressure so that a negative pressure can be generated in a body cavity into which the receiving body is introduced.

The device according to the invention can be sterilized and used in a sterile manner.

The receiving body can be introduced into a body cavity. The receiving body preferably has no coating, for example in the form of a film, which closes its pores. If the receiving body is introduced into a body cavity, its outer sides can rest against the inner sides of the body cavity so that wound exudate that forms there can enter the latter through the pores of the receiving body.

If the receiving body has two or more layers, the layers of the receiving body can be introduced into a body cavity. The layers are open-pored and have no coating, for example in the form of a film, which closes the pores of the layers. If the layers are introduced into the body cavity, the outer sides of the two outer layers each lie against the inner sides of the body cavity, so that wound secretions that form there can enter the layers through the pores. The layers lie on top of one another, but are not connected to one another. Rather, the negative pressure in a body cavity such as the peritoneal cavity is sufficient to press the layers together.

A body cavity is understood here to mean a cavity in the human or animal body. Such cavities are usually lined with an epithelium or mesothelium. The device according to the invention can be used, for example, to remove wound secretions from the peritoneal cavity (Cavitas peritonealis), pleural cavity (Cavitas pleuralis) or joint cavities (Cavitas articularis).

The device according to the invention makes it possible for the first time to permanently suck off wound exudate from a body cavity without requiring an operation to remove the receiving body after it has fulfilled its medical purpose. In contrast to the prior art drainage tubes, the formation of channels is prevented by the introduction of the layers. The receiving body provided according to the invention is thin and flexible compared to the sponges and, due to the pore design, enables long-term, continuous and organ-friendly suction of wound secretions from body cavities. The risk of injuring organs is largely excluded. This also applies if the receiving body has two or more layers.

The size of the receiving body can be adapted to the size of the body opening into which it is to be introduced. The receiving body can, for example, have a thickness of 1 mm to 20 cm, e.g. B. from 15 to 20 cm or from 15 cm or from 20 cm. It can also extend from 1 mm to 50 cm in a direction that is orthogonal to its thickness. In particular, can a shaped body, for example a shaped body produced by means of 3D printing, or a knitted fabric with a thickness of 1 mm to 20 cm, e.g. B. from 15 to 20 cm or from 15 cm or from 20 cm, and / or an extension of 1 mm up to 50 cm in a direction which is orthogonal to its thickness.

A layer of the receiving body can have a thickness of 1 to 50 mm, preferably a thickness of 3 to 15 mm. In a particularly preferred embodiment, the thickness of a layer is between 0.2 to 0.8 times, more preferably 0.4 to 0.6 times the outer diameter of the hose. It is particularly preferred if the thickness of a layer corresponds to 0.5 times the outer diameter of the hose.

The open-pored biodegradable material preferably has a pore size of 10 to 75 ppi. This corresponds to 4 to 25 pores per centimeter of surface of the receiving body. The open-pored biodegradable material preferably has 5 to 20 pores per centimeter of surface of the receiving body.

The open-pored biodegradable material preferably has a bulk density of 14 to 75 kg / m ³ , preferably a bulk density of 20 to 40 kg / m ³ . Gross density is understood here as the density of the biodegradable material before the penetration of wound secretion.

The receiving body, for example its layers, made of the open-pored biodegradable material can, in contrast to the prior art, be adapted relatively easily to the body cavity to be lined with the receiving body of the device. The height of the receiving body can be determined by the number of layers lying on top of one another. The length and width of the receiving body, for example the length and width of the layers from which the receiving body is formed, can be determined by cutting.

In one embodiment of the invention, the conduit means is a hose. The tube is preferably made of silicone or another soft, flexible and physiologically acceptable plastic. The outer diameter of the hose is preferably obtained from the thickness of a layer of the receiving body.

The inner section of the conduit means is preferably arranged in the receiving body in such a way that its open end is not located at the edge of the receiving body. Rather, the first section should run in the receiving body, for example between the two layers. The length of the inner section of the conduit means is preferably at least 50%, more preferably 60% of the length of the receiving body or one or all of its layers.

In addition to the open end, the inner section of the conduit means expediently has further openings which are formed in the jacket of the inner section. The further openings are expediently distributed uniformly over the inner section. The openings can be 1 to 15 mm in size, depending on the outer diameter of the inner section. Preferably, the size of each opening equals the size of the open end of the inner portion of the conduit means. Alternatively, it can be provided that the size of the further openings can increase with increasing distance from the open end of the inner section. In this case the largest further opening should be as large as the open end of the inner section.

The further openings are preferably round or elliptical openings; however, they can also have any other suitable shape.

The distance between two adjacent openings, as well as the distance between the opening which is adjacent to the open end of the first section, should be between two and ten times the diameter of the largest opening.

In a preferred embodiment, the openings on the jacket of the conduit means are arranged offset from one another. The openings are preferably distributed on an imaginary spiral over the jacket of the conduit means.

If the receiving body has several layers, it can be provided that the inner section of the conduit is introduced between the layers in such a way that the upper outer surface of the jacket of the conduit is in contact with the underside of the upper layer and the lower outer surface of the jacket of the conduit in Contact with the top of the lower layer is over the entire inner portion of the conduit means. The inner section of the receiving body can run straight or curved in the receiving body, for example between the layers of the receiving body. For example, it can be curved in an S-shape. If the inner section is straight, it should be arranged centrally between the edges of the receiving body, for example between its layers.

In addition, several conduits, for example several hoses and / or pipes, can be introduced into the receiving body, for example between two adjacent layers of the receiving body. The inner sections of the Line means can be arranged parallel to one another. For example, a second conduit means can be introduced between two adjacent layers, the inner section of which is introduced between the two layers of the receiving body, the outer section of the second conduit means being located outside the layers. In a preferred embodiment, the distance between the inner section of the second conduit means and the inner section of the first conduit means corresponds to half the width of one layer of the receiving body, the inner sections of the two conduit means being arranged parallel to one another.

The end of each line means which is located outside the receiving body should be connected to a device for generating negative pressure. The device for generating negative pressure can be, for example, a suction pump. The suction pump should create a vacuum between 10 and 250 mm Hg. In this way, a negative pressure is generated in the body cavity, so that wound secretion located or developing in the body cavity enters the receiving body, from there reaches the openings of the conduit via its pores and is finally sucked out of the body cavity via the conduit. The suction pump can be any pump that can generate a negative pressure, for example a mechanical pump, an electric pump or a hand pump. The suction pump can be specially adapted to the device according to the invention.

The device according to the invention can comprise more than two layers. At least one conduit should be introduced between adjacent layers, but this is not necessary if the device according to the invention comprises at least one conduit as a whole. If more than three layers are provided, however, at least one conduit element is preferably introduced between the two uppermost layers and at least one conduit element is introduced between the two lowest layers. Regardless of this, one, two or more conduits can be introduced between adjacent layers.

In a preferred embodiment, the device consists of the layers and the at least one tube.

According to the invention, a kit for producing a device according to the invention for removing wound secretions from body cavities is also provided. The kit comprises at least one receiving body for receiving wound secretion from a body cavity and at least one conduit means for removing wound secretion from the receiving body, the receiving body being a receiving body made of a biodegradable material. The kit can furthermore comprise a device for generating a negative pressure in the body cavity, the device being configured for connection to the conduit means.

If the receiving body has several layers, the layers can be provided in the form of a flexible bandage, roll or plate. They should preferably have a length of 5 to 200 cm, particularly preferably 20 to 100 cm. If the layers do not have the required length and width, they can be cut to size. The conduit means, for example the hose, can also be cut to size if it does not have the required length. For this reason, the kit according to the invention can comprise a device for cutting the receiving body and the conduit means.

The kit can furthermore comprise a suction pump, in particular a hand pump or an electric suction pump, for generating a negative pressure in the body cavity, the hand pump being set up for connection to the second section of the conduit means. The kit can furthermore contain coupling elements for connecting a conduit means to another conduit means or extension elements; Extension elements for extending the hoses; Distribution elements for distributing the suction of the pump to several hoses; and a connection element for connecting one or more conduit means to the pump. The suction pump can be specially adapted to the device according to the invention.

The receiving body and the conduit means can be prepared according to medical needs that require the removal of wound secretions from a body cavity. For example, the receiving body can be introduced into the body cavity of a patient and part of the conduit means can be introduced into a recess in the receiving body or between its layers, forming the inner section of the conduit means. The conduit is laid in such a way that its second section is led out of the body cavity and out of the body of a patient. The body cavity is then surgically closed if necessary. Then the open end of the conduit, which is located outside the body, is connected to a suction pump.

It can be provided that the receiving body or its layers are cut to size, so that the dimensions of the receiving body or its layers correspond to the dimensions of the body cavity into which the receiving body or its layers are to be introduced. The cutting of the receiving body or its layers can be seen as configuring the receiving body or its positions. It can then be provided that at least one conduit means is cut to a length such that part of the conduit means can be introduced into the receiving body or between its layers to form the inner section and the outer section of the conduit means out of the body cavity and out of the body of a patient can be led out. The receiving body and part of the conduit are then - as described - introduced into the body cavity. The body cavity is then surgically closed, if necessary, and the open end of the hose, which is located outside the patient's body, is connected to the suction pump.

1. (i) das Zuschneiden des Aufnahmekörpers, beispielsweise seiner Lagen, so dass dessen bzw. deren Abmessungen der Körperhöhle entsprechen, in die der Aufnahmekörper eingebracht werden soll; und
2. (ii) das Zuschneiden zumindest eines Leitungsmittels auf eine solche Länge, dass ein Teil des Leitungsmittels unter Ausbildung des inneren Abschnittes in den Aufnahmekörper, beispielsweise zwischen zwei Lagen des Aufnahmekörpers eingebracht werden kann und der äußere Abschnitt des Leitungsmittels aus der Körperhöhle und aus dem Körper eines Patienten hinausgeführt werden kann.

A method for producing the device according to the invention thus comprises

1. (i) the cutting of the receiving body, for example its layers, so that its dimensions correspond to the body cavity into which the receiving body is to be introduced; and
2. (ii) the cutting of at least one conduit means to a length such that part of the conduit means can be introduced into the receiving body, for example between two layers of the receiving body, with the formation of the inner section, and the outer section of the conduction means from the body cavity and from the body of one Patient can be led out.

The cutting of the receiving body carried out in step (i) enables a configuration of the receiving body. In this way, an individual adaptation of the receiving body to the patient into whose body cavity the receiving body is to be introduced is achieved. Instead of the configuration provided in step (i) by cutting the receiving body to size, the receiving body can already be configured using the 3D printing. If the receiving body is produced by means of 3D printing, it is expediently already dimensioned in such a way that it is individually adapted to the patient into whose body cavity the receiving body is to be introduced.

This method may further include connecting the open end of the external conduit means external to the patient's body to a pump.

The suctioned wound secretion can be used to monitor the condition of the body cavity. For example, qualitative and quantitative measurements can be carried out in the wound secretion.

The device according to the invention promotes permanent and complete removal of wound secretions from body cavities. The blood flow to the sucking points is improved, edema is reduced, the risk of intra-abdominal or intracaval compartment syndrome is reduced, and cleaning and healing are stimulated. The number of surgical interventions can be significantly reduced. An operation to remove the device according to the invention after the healing is complete is no longer necessary. In addition, healing of a wound located in the body cavity is promoted by an improved blood flow. Due to the flexibility and softness of the receiving body, it can be introduced into the body cavity without complications. Due to the permanent closure of the body cavity using the device according to the invention, the risk of external germ colonization by daily operations can be reduced.

Because of the receiving body provided according to the invention, the device according to the invention has a suction surface that is many times larger than previously known devices. The entire body cavity, for example the entire abdominal cavity, which has a huge surface area compared to other body cavities, can be aspirated using the device according to the invention. The receiving body can remain in the body cavity until it is biodegraded. The receiving body can remain in the body cavity for several days and is absorbed by the body after it has been broken down. The resulting degradation products are harmless. The conduit, which can be, for example, a tube such as a silicone tube, can be pulled out of the body after the resorption.

The receiving body of the device according to the invention consists of an open-pored, biodegradable, flexible, organ-protecting and sterilizable material. This material in the form of one or more layers and the necessary number of conduction means, for example tubes, are introduced into a body cavity of a patient under anesthesia. The patient can easily be mobilized after this operation; also oral feeding by the patient. The number of operations and thus the number of surgical scars are reduced to a minimum. As a rule, only one operation is required, namely the operation in which the device according to the invention is introduced into the body cavity.

The device according to the invention enables the continuous removal of toxins, bacteria, metabolic products, wound fluid, viruses, etc. from body cavities. All Organ gaps can be treated with the device according to the invention.

The device according to the invention is not limited to the removal of wound secretions. Other body fluids can also be removed from wound cavities.

The device according to the invention can also be used for removing wound secretions from open wounds.

• 1 Querschnittsdarstellungen von Ausführungsformen der erfindungsgemäßen Vorrichtung;
• 2 eine Draufsicht auf eine Lage eines Aufnahmekörpers, auf die drei Schläuche aufgebracht worden sind; und
• 3 Draufsichten auf Lagen, auf die S-förmige gekrümmte Schläuche aufgebracht sind; und
• 4 Darstellungen eines einteiligen Aufnahmekörpers, in den ein Schlauch als Leitungsmittel eingebracht ist, entlang einer vertikalen Schnittebene (4a: perspektivische Darstellung; 4b: Schnittdarstellung).

The invention is explained in more detail below on the basis of embodiments with reference to the accompanying drawings. Show it

• 1 Cross-sectional representations of embodiments of the device according to the invention;
• 2 a plan view of a layer of a receiving body on which three tubes have been applied; and
• 3 Plan views of sheets to which S-shaped curved tubes are applied; and
• 4th Representations of a one-piece receiving body, in which a hose is inserted as a conduit, along a vertical sectional plane ( 4a : perspective view; 4b : Sectional view).

1a is a schematic cross-sectional representation of an embodiment of the device according to the invention 1 . The device 1 consists of two layers 2.1 and 2.2 a receiving body 2 between which one end of a hose 3 is introduced, which is the inner section 3a forms. The hose 3 is a conduit. The outer section 3b of the hose 3 is not located between the layers 2.1 , 2.2 of the receiving body 2 . The inner section 3a of the hose 3 that is between the two layers 2.1 and 2.2 has additional openings 4th on. The outer section 3b of the hose 3 that is not between the two layers 2.1 and 2.2 is located, can be led out of the body cavity and by means of a connection element 5 connected to another hose or extension element.

In the 1b The embodiment shown is similar to that in FIG 1a embodiment shown, except that one more layer 2.3 of the receiving body 2 is provided and another hose 3.2 in addition to the first hose 3.1 is provided. However, it is not absolutely necessary that a hose is always inserted between adjacent layers (see 1c ). In the 1c The embodiment shown consists of four layers 2.1 , 2.2 , 2.3 and 2.4 of the receiving body 2 , being just between the layers 2.1 and 2.2 a hose 3.2 and between the layers 2.3 and 2.4 a hose 3.1 was introduced. Between the layers 2.2 and 2.3 no hose is provided, even if these are adjacent layers. The hoses 3.1 and 3.2 are by means of a distributor element 6th connected, which can be connected to the suction pump for example via an extension element (not shown).

2 shows a plan view of a layer 2.1 of the receiving body 2 on which the hoses 3.1 , 3.2 and 3.3 are arranged. There is a layer not shown on the hoses 2.2 arranged. It can be seen that not all of the hoses exit the receiving body in the same direction 2 must be brought out. The 3a and 3b show as well as 2 a location 2.1 of the receiving body. In 3a is the section of the hose 3 that is between the location 2.1 and the location on it 2.2 (not shown) is S-shaped on the sheet 2.1 arranged. In 3b is also a second hose 3.2 provided, which also has an S-shaped section.

In 4th is an embodiment of a device according to the invention 1 shown having a one-piece receiving body 2 shows. In the receiving body 2 is the inner section 3a a hose 3 brought in. It can be seen that in the receiving body 2 a recess is formed in which the inner portion 3a of the hose 3 is located. Its outer section 3b however, is located outside the receiving body. The inner section 3a has additional openings 4th on.

List of reference symbols

1

contraption

2

Receiving body

2.1-2.4

Positions of the receiving body

3

tube

3a

inner section

3b

outer section

3.1-3.3

Hoses

4th

further openings of the hose 3

5

Connection element

6th

Distribution element

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• EP 1674127 A1 [0006]

Claims (15)

Device for removing secretions from body cavities (1), comprising an open-pore receiving body (2) for receiving secretion from a body cavity and at least one conduit means (3) for discharging secretions from the receiving body (2), the receiving body (2) being a The receiving body (2) is made of a biodegradable material, at least one section (3A) of the conduit means (3) being arranged in the receiving body (2). Device according to Claim 1 , characterized in that the receiving body (2) consists of a foamed material, a printed material or a knitted material. Device according to Claim 1 or Claim 2 , characterized in that the biodegradable material consists of one or more hydrolytically and / or enzymatically cleavable polymers. Device according to one of the preceding claims, characterized in that the biodegradable material is selected from the group consisting of polyesters, polyamides, polycarbonates, polyanhydrides, polyureas, polyurethanes, polylactones, copolymers containing these compounds, and mixtures thereof and mixtures thereof consists. Device according to one of the preceding claims, characterized in that the biodegradable material is selected from the group consisting of L-, D-, D / L-polylactides, polyglycolides, polydioxanones, poly-ε-caprolactones, copolymers which these compounds contain, and mixtures thereof and mixtures thereof. Device according to one of the preceding claims, characterized in that the biodegradable material is selected from the group consisting of poly (L-lactide-co-D, L-lactide), poly (L-lactide-co-glycolide), poly ( D, L-lactide-co-glycolide), poly (L-lactide-co-ε-caprolactone), poly (L-lactide-co-dioxanone), poly (L-lactide-co-glycolide-co-dioxanone), Poly (ε-caprolactone-co-glycolide-co-dioxanone), poly (glycolide-co-dioxanone), poly (L-lactide-co-ε-caprolactone) and poly (L-lactide-co-trimethylene carbonate). Device according to one of the preceding claims, characterized in that the biodegradable material has a pore size of 10 to 75 ppi. Device according to one of the preceding claims, characterized in that the receiving body (2) has at least two layers (2.1, 2.2, 2.3) lying on top of one another. Device according to one of the preceding claims, characterized in that a recess is formed in the receiving body (2) for receiving the section (3a) of the line means (3) or for connecting the line means (3). Device according to one of the preceding claims, characterized in that the conduit means (3) is tubular or hose-shaped. Kit for producing a device according to one of the Claims 1 to 10 comprising a receiving body (2) for receiving secretion from a body cavity and at least one conduit means (3) for discharging secretion from the receiving body (2), wherein the receiving body (2) is a receiving body (2) made of a biodegradable material. Kit after Claim 11 , characterized in that it further comprises a device for generating a negative pressure in the body cavity, the device being set up for connection to the conduit means (3). Kit after Claim 12 , characterized in that the device for generating a negative pressure is a hand pump or an electric suction pump. Kit after Claim 12 or Claim 13 , characterized in that the device for generating a negative pressure is adapted to the device (1) for removing secretions from body cavities. Device for suctioning secretions from a body cavity, comprising a device (1) according to one of the Claims 1 to 10 and means for generating a negative pressure in the wound.

Images