Device for assisting in connecting a syringe and a cannula, system comprising the device, method for connecting a syringe and a cannula, and use of the device or system

Abstract

The present invention provides a device for assisting in connecting a syringe and a cannula. The device has a cannula receiving section which has a cannula receiving opening configured to receive a first end section of a cannula in such a way that movement of the cannula about a longitudinal axis of the first end section is at least restricted.

Description

Technical FieldThe present invention relates to a device for assisting in connecting a syringe and a cannula, a system comprising the device, a method for connecting a syringe and a cannula, and a use of the device and / or the system.In this respect, the present invention relates to an aid which can support and thus facilitate the sequences of a puncture of a patient.Prior ArtIn the case of, for example, intravenous puncturing of a patient, for example by means of a so-called wing cannula, also butterfly cannula, the coupling end piece of the cannula (or of the tube) must be held in place in order then to be able to manually couple the syringe to the cannula. For this purpose, two hands are normally required or blocked and further operations can then be carried out only with difficulty or not.This is a problem, particularly in the case of self-puncturing and puncturing of a patient (e.g. young) who has to be fixed by means of at least one hand.It can be considered an object of the present invention to provide a device with which a syringe and a cannula can be easily connected and / or with which the connection of a syringe and a cannula can be simplified and / or with which a syringe and a cannula can be efficiently connected.Alternatively or additionally, it may be considered an object of the present invention to provide a system with which a syringe and a cannula can be easily connected and / or with which the connection of a syringe and a cannula can be simplified and / or with which a syringe and a cannula can be efficiently connected.Alternatively or additionally, it can be considered an object of the present invention to specify a method with which a syringe and a cannula can be connected easily and / or efficiently.Alternatively or additionally, it can be considered an object of the present invention to provide a device and / or a system and / or a method which can enable a user to fix a cannula, for example the coupling end piece of a butterfly cannula, and to provide it ready for use for connection or coupling to a syringe, for example without using a hand.DETAILED DESCRIPTION OF THE INVENTIONTo this end, the present invention provides an apparatus according to claim 1, a system according to claim 5, a method according to claim 7 and a use according to claim 9. Further advantageous embodiments of the invention are disclosed in the dependent claims.According to a first aspect of the invention, a device (for example auxiliary device, for example assistance device) for assisting in connecting a syringe and a cannula can have a cannula receiving portion which (for example at least) has a cannula receiving opening which is configured to receive a first end portion of a cannula such that a movement (for example rotational movement, for example rotational movement) of the cannula (for example the first end portion of the cannula) about a longitudinal axis of the first end portion (of the cannula) is at least restricted (for example (at least substantially) prevented, for example (at least substantially) completely prevented) (for example when the device is fixed).This can make it possible, for example, to fix the cannula or its first end section in order to connect or couple the cannula or its first end section to a syringe. Clearly, the connection process or coupling process can thus be carried out with one hand (instead of two hands).For example, the cannula receiving opening can be shaped and / or have a shape to receive a first end section of a / the cannula such that a movement (for example rotational movement, for example rotational movement) of the cannula (for example the first end section of the cannula) about a longitudinal axis of the first end section (of the cannula) is at least restricted (for example (at least substantially) prevented, for example (at least substantially) completely prevented). For example, the cannula receiving opening (for example in a cross section thereof) may have a shape at least substantially complementary to the first end section (of the cannula) (for example in a cross section thereof). For example, the cannula receiving opening (for example in a cross section thereof) may have a shape at least substantially complementary to a part of the first end section of the cannula (for example in a cross section thereof).The cannula receiving portion may have, for example, a plurality of (for example, two or more, for example, three or more) cannula receiving openings. The cannula receiving portion can have, for example, a plurality of (for example, two or more, for example, three or more) cannula receiving openings which are (each) configured to receive a first end portion of a (respective or associated) cannula such that a movement of the (respective or associated) cannula (for example, of the first end portion of the (respective or associated) cannula) about a longitudinal axis of the (respective or associated) first end portion is at least restricted (for example, (at least substantially) prevented, for example (at least substantially) completely prevented). The plurality of cannula receiving openings may have different shapes (for example, in a cross section, for example, orthogonal to the longitudinal axis of the first end portion), for example. The plurality of cannula receiving openings may be shaped differently, for example (for example in a cross section, for example orthogonal to the longitudinal axis of the first end section). For example, a shape of a first cannula receiving opening (for example in a cross section, for example orthogonal to the longitudinal axis of the first end section) may be different from a shape of a second cannula receiving opening (for example in a cross section, for example orthogonal to the longitudinal axis of the first end section). The (corresponding) cannula receiving openings can be configured, for example, as described below. As a result, the device can be universally and / or flexibly usable, for example.The (respective) cannula receiving opening can be formed, for example, by a (respective) through opening. The (respective) cannula receiving opening can be formed, for example, by a (respective) through hole. The (respective) cannula receiving opening can be, for example, a (respective) through opening. The (respective) cannula receiving opening can be, for example, a (respective) through hole. The cannula receiving section can have, for example, a (respective) through-opening, which forms the (respective) cannula receiving opening. The cannula receiving section can have, for example, a (respective) through hole, which forms the (respective) cannula receiving opening.The cannula receiving section can have, for example, a passage opening which is connected to the cannula receiving opening and through which a / the cannula (for example a section of the cannula different from the first end section (of the cannula) can be passed. As a result, for example, the cannula can be arranged easily (for example, with one hand) on the cannula receiving section.The cannula receiving portion may have, for example, a plurality of (for example, two or more, for example, three or more) through-openings. One (respective) of the plurality of feed-through openings can be assigned to one (respective) of the plurality of cannula receiving openings (for example, so that one cannula receiving opening is connected to one (assigned) feed-through opening in each case). The cannula receiving section can have, for example, a plurality of (for example, two or more, for example, three or more) passage openings, which are each connected to an associated one of the plurality of cannula receiving openings and through which a / the cannula (for example, a section of the cannula different from the first end section) can be passed. The (respective) passage openings can be formed, for example, as described below. As a result, the device can be universally and / or flexibly usable, for example.The (respective) passage opening can be formed, for example, by a (respective) passage opening. The (respective) passage opening can be formed, for example, by a (respective) through hole. The (respective) passage opening can be, for example, a (respective) passage opening. The (respective) passage opening can be, for example, a (respective) through hole. The cannula receiving section can have, for example, a (respective) passage opening, which forms the (respective) passage opening. The cannula receiving section can have, for example, a (respective) through hole, which forms the (respective) passage opening.The device can have, for example, a fastening section which is connected to the cannula receiving section and is configured to fasten the device (for example to an arm, for example to a table) such that a movement (for example rotational movement, for example rotational movement) of the device (for example about a first axis (at least substantially) running orthogonally to the longitudinal axis of the first end section (of the cannula) and / or about a second axis (at least substantially) running orthogonally to the longitudinal axis of the first end section (of the cannula)) is at least restricted (for example (at least substantially) prevented, for example (at least substantially) completely prevented). This allows, for example, the syringe and the cannula to be easily connected (for example, with one hand).The device can have, for example, a support section which is connected to the cannula receiving section and / or the fastening section and is configured to support the device (for example on a table) such that a movement (for example rotational movement, for example rotational movement) of the device (for example about a / the second axis (at least substantially) running orthogonally to the longitudinal axis of the first end section (of the cannula) and / or about a / the first axis (at least substantially) running orthogonally to the longitudinal axis of the first end section (of the cannula) is at least restricted (for example (at least substantially) prevented, for example (at least substantially) completely prevented). This allows, for example, the syringe and the cannula to be easily connected (for example, with one hand).For example, the first axis may be arranged (at least substantially) orthogonally to the second axis.The device may have, for example, a fastening portion and a supporting portion. The attachment portion may be connected (for example directly) to the cannula receiving portion and configured to attach the device to an arm. The support portion may be connected (for example directly) to the fastening portion and configured to support (for example on a table) the device such that a movement (for example rotational movement, for example rotational movement) of the device (for example about an axis running (at least substantially) orthogonally to the longitudinal axis of the first end portion) is at least restricted (for example (at least substantially) prevented, for example (at least substantially) completely prevented). This allows, for example, the syringe and the cannula to be easily connected (for example, with one hand).The fastening portion can have, for example, a (for example adjustable) bracelet and / or a (for example adjustable) bracelet and / or be formed therefrom. A periphery of the bracelet and / or the bracelet can be adjustable and / or changeable and / or adjustable, for example. A size or a diameter of the bracelet and / or the bracelet can be variable (for example adjustable, for example variable), for example. This allows, for example, the device to be easily attached to an arm and / or the syringe and cannula to be easily connected (e.g., one-handed).The supporting section can have, for example, a rail and / or a strip and / or a plate and / or be formed therefrom. As a result, for example, the device can be easily arranged or supported on a table and / or the syringe and the cannula can be easily connected (for example, with one hand).The cannula receiving section and the fastening section can be formed integrally, for example. The cannula receiving section and the supporting section can be formed integrally, for example. The fastening portion and the supporting portion may be formed integrally, for example. The cannula receiving portion, the fastening portion and the supporting portion can be formed integrally, for example. The cannula receiving section, the fastening section and / or the supporting section can be produced, for example, by 3D printing or can be produced by a 3D printing method, for example, in one piece. As a result, for example, the device can be produced or produced in a simple and / or reliable manner.According to a second aspect of the invention, a system may comprise the device according to the first aspect of the invention and (for example at least) one cannula. The system may include, for example, multiple (e.g., two or more, e.g., three or more) cannulas.For example, at least a part of the first end portion of the cannula (for example, a / the part of the cannula that can be accommodated or arranged in the cannula receiving opening) can have a shape at least substantially complementary to the cannula receiving opening (for example, so that at least a / the part of the first end portion of the cannula and the cannula receiving opening can be brought into engagement with each other). For example, the first end portion of the cannula (or a part thereof) and the cannula receiving opening (for example in a cross section) may be shaped such that the first end portion of the cannula (or the part thereof) has a shape at least substantially complementary to the cannula receiving opening (for example such that the first end portion of the cannula (or the part thereof) and the cannula receiving opening can be engaged with each other). For example, the first end portion of the cannula and the cannula receiving opening may be shaped such that at least a portion of the first end portion of the cannula and the cannula receiving opening are or can be engaged with each other. For example, the (respective) first end portions of the plurality of cannulas and the plurality of cannula receiving openings can be shaped such that at least a part of the first end portion of a respective cannula can be brought into engagement with an associated cannula receiving opening and / or that at least a part of the first end portion of a respective cannula and an associated cannula receiving opening have a shape at least substantially complementary in cross section. For example, at least a portion of the first end portion of the cannula and the cannula receiving aperture may be engaged (e.g., when the cannula is disposed on the device) and / or engaged. This allows, for example, the syringe and the cannula to be easily connected (for example, with one hand).The system may comprise, for example, a syringe. For example, the cannula (for example, the first end section of the cannula) and the syringe (for example, an end section of the syringe) can be connected to one another (for example, by means of a plug connection, for example, by means of a screw connection, for example, by means of a Luer lock connection, for example, by means of a Luer lock system). For example, the syringe (e.g., a / the end portion of the syringe) may have an internal thread and the cannula (e.g., the first end portion of the cannula) may be screwable into the internal thread.According to a third aspect of the invention, a method for connecting a syringe and a cannula can comprise: providing the device according to the first aspect of the invention and / or providing the system according to the second aspect of the invention; arranging the first end section of the cannula in the cannula receiving opening such that a / the movement (for example rotational movement, for example rotational movement) of the cannula (for example the first end section of the cannula) about a / the longitudinal axis of the first end section (of the cannula) is at least restricted; connecting the cannula (for example the first end section of the cannula) and the syringe (for example the end section of the syringe) (for example by means of a plug connection, for example by means of a screw connection, for example by means of a luer lock connection, for example by means of a luer lock system, for example by screwing the syringe onto the cannula).For example, in order to arrange the first end section of the cannula in the cannula receiving opening, the cannula (for example a section of the cannula different from the first end section (of the cannula), for example a second end section of the cannula and / or a connecting section of the cannula arranged between the first and second end section (of the cannula) can be passed through the passage opening.The second end section of the cannula can have a needle and / or be formed by it, for example. The connecting section of the cannula can have a hose and / or be formed by it, for example.For example, for / upon connecting the cannula and the syringe, the syringe (e.g., the end portion of the syringe) may be screwed onto the cannula (e.g., the first end portion of the cannula).According to a fourth aspect of the invention, the device according to the first aspect of the invention and / or the system according to the second aspect of the invention can be used for connecting a syringe and a cannula.Exemplary, but non-limiting embodiments of the invention are illustrated in the figures and are explained in more detail below. FIG. 1 is a perspective view of an apparatus according to a first embodiment of the invention, and FIG. 2 is a side view of the apparatus according to the first embodiment of the invention. FIG. 3 shows a side view of a device according to a second embodiment of the invention. FIGS. 4-6 show various perspective views of an apparatus according to a third embodiment of the invention, FIG. 7 shows a side view of the apparatus according to the third embodiment of the invention, and FIG. 8 shows a plan view of the apparatus according to the third embodiment of the invention. FIGS. 9 and 10 show different perspective views of a system according to a fourth embodiment of the invention, and FIG. 11 shows a perspective view of the system according to the fourth embodiment of the invention, wherein the system is arranged on an arm.In the following description, reference is made to the accompanying figures which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced.It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. It is understood that the features of the embodiments described herein may be combined with each other, unless specifically stated otherwise. The following description is therefore not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.In the figures, identical or similar elements are provided with identical reference numerals, as appropriate.For example, as shown in FIGS. 1, 4-6, and 8-11, a device 1 for assisting in connecting a syringe and a cannula 15, for example, may include a cannula receiving portion 3 having a cannula receiving opening 5 configured to receive a first end portion 17 of a cannula 15 such that movement (e.g., rotational movement) of the cannula 15 (e.g., the first end portion 17 of the cannula 15) about a longitudinal axis L 1 of the first end portion 17 of the cannula 15 is at least restricted.The cannula receiving section 3 can have, for example, a passage opening 7, which is connected to the cannula receiving opening 5 and through which a / the cannula 15 (for example a section of the cannula 15 different from the first end section 17 of the cannula 15) can be passed.As shown in FIG. 1, for example, the device can have exactly one cannula receiving opening 5 and exactly one passage opening 7.Alternatively, the device can have, for example, a plurality of (for example two) cannula receiving openings 5 and a plurality of (for example two) through-openings 7. The plurality of cannula receiving openings 5 may have different shapes, for example, in a cross section thereof. A respective cannula receiving opening 5 (of the plurality of cannula receiving openings 5) can be connected, for example, to (exactly) an associated through-opening 7 (of the plurality of through-openings). See, for example, Figs. 4-6 and 8-11.As shown, for example, in FIGS. 1, 4-6 and 8-11, the cannula receiving opening(s) 5 and / or the passage opening(s) 7 may (each) have the shape of, and / or be formed as, passage openings or through holes.Thus, for example, one or more cannula receiving openings 5 can be provided in the cannula receiving section 3, which can be configured to receive different cannulas 15 (for example coupling end pieces 17 of the cannulas 15). The cannula receiving openings 5 can be designed, for example, universally or specifically for different cannulas 15 with respectively different cannula end pieces 17. In addition, for example, one or more feed-through openings 7 (assigned to the cannula receiving openings 5) can be provided in the cannula receiving section 3, through which, for example, a / the tube of a butterfly cannula can be passed.As shown in FIGS. 4-11, for example, the device 1 can have a fastening portion 9 which is connected to the cannula receiving portion 3 and is configured to fasten (for example to an arm; see, for example, FIG. 11 ) the device 1 in such a way that a movement (for example rotational movement, for example rotational movement) of the device 1 (for example about a first axis L 2 and / or second axis L 3 running orthogonally to the longitudinal axis L 1 of the first end portion 17; see, for example, FIGS. 9 and 10 ) is at least restricted.By means of the fastening section 9, the device 1 can be fastened, for example, to the forearm of the puncturing person or the patient. The fastening portion 9 can be embodied in different sizes and / or shapes, for example. For example, the device can be fixed by the fastening section 9, with unrestricted mobility of the hands and arms (of the puncturing person).As shown in FIGS. 3-11, for example, the device 1 can have a support section 11 which is connected to the cannula receiving section 3 (see, for example, FIGS. 3 and 4-11 ) and / or the fastening section 9 (see, for example, FIGS. 4-11 ) and is configured to support the device 1 (for example, on a table) such that a movement (for example, rotational movement, for example, rotational movement) of the device 1 (for example, about a first axis L 2 and / or second axis L 3 running orthogonally to the longitudinal axis L 1 of the first end section 17; see, for example, FIGS. 9 and 10 ) is at least restricted.The device 1 may for example comprise a fastening portion 9 and a supporting portion 11 (see for example FIGS. 4-11 ). The attachment portion 9 may be directly connected to the cannula receiving portion 3 and configured to attach the device 1 to an arm (see for example FIGS. 4-11 ). The support portion 11 can be directly connected to the fastening portion 9, for example, and can be configured to support the device 1 (for example on a table) such that a movement (for example rotational movement, for example rotational movement) of the device 1 (for example about an axis running orthogonally to the longitudinal axis of the first end portion) is at least restricted (see, for example, FIGS. 4-11 ).For connecting or coupling the syringe and the cannula 15, a corresponding pressure may be required, for example, on the fixed first end section 17 of the cannula 15 (for example on the fixed end piece of a butterfly cannula). By means of the support section 11, for example, an undesired change in the position of the cannula 15 or of the first end section 17 of the cannula 15 can be at least restricted (for example prevented). For this purpose, for example, the device 1 fixed to the arm can be placed on a table by means of the support section 11, whereby the device can be secured, for example, against undesired change in position. Alternatively or additionally, for example, the fastening portion 9 can also fulfil one or more of the functions described above with respect to the supporting portion 11.The fastening portion 9 can have, for example, a bracelet and / or a bracelet and / or be formed thereby. The support portion 11 can have, for example, a rail and / or a strip and / or a plate and / or be formed thereby. The cannula receiving portion 3, the fastening portion 9 and the supporting portion 11 can be formed integrally, for example. The device or the above-described sections of the device can be produced, for example, by 3D printing or can be produced by a 3D printing method.As shown for example in FIGS. 9-11, a system 13 may for example comprise the above-described device 1 and a cannula 15, wherein at least a part of the first end section 17 of the cannula 15 may for example have a shape at least substantially complementary to the cannula receiving opening 5, and / or wherein the first end section 17 of the cannula 15 and the cannula receiving opening 5 may for example be shaped such that at least a part of the first end section 17 of the cannula 15 and the cannula receiving opening 5 are engageable with each other, and / or wherein at least a part of the first end section 17 of the cannula 15 and the cannula receiving opening 5 are engageable with each other, for example.The system 13 can have, for example, a syringe, wherein, for example, the cannula 15 (for example, the first end section 17 of the cannula 15) and the syringe (for example, an end section of the syringe) can be connectable to one another (for example, by means of a plug connection, for example, by means of a screw connection, for example, by means of a luer lock connection, for example, by means of a luer lock system), and / or wherein, for example, the syringe (for example, a / the end section of the syringe) can have an internal thread and the cannula 15 (for example, the first end section 17 of the cannula 15) can be screwed into the internal thread.A method for connecting a syringe and a cannula 15 can comprise the steps, for example: providing the above-described device 1 and / or the above-described system 13; arranging the first end section 17 of the cannula 15 in the cannula receiving opening 5 such that a / the movement of the cannula 15 (for example the first end section 17 of the cannula 15) about a / the longitudinal axis L 1 of the first end section 17 of the cannula 15 is at least restricted; connecting the cannula 15 (for example the first end section 17 of the cannula 15) and the syringe (for example the end section of the syringe) (for example by means of a plug connection, for example by means of a screw connection, for example by means of a Luer-Lock connection, for example by means of a Luer-Lock system).In order to arrange the first end section 17 of the cannula 15 in the cannula receiving opening 5, the cannula 15 (for example a section of the cannula 15 different from the first end section 17 of the cannula 15, for example a second end section 17 of the cannula 15 and / or a connecting section of the cannula 15) arranged between the first and second end section 17 of the cannula 15 can be passed through the passage opening 7, for example.The second end section of the cannula 15 can be at least jointly formed (for example formed) by a needle and / or can have a needle. The connecting section of the cannula 15 can be at least jointly formed (for example formed) by a hose (as shown for example in FIGS. 9-11 ) and / or can have a hose.For example, for / connecting the cannula 15 and the syringe, the syringe (e.g., the end portion of the syringe) may be screwed onto the cannula 15 (e.g., the first end portion 17 of the cannula 15).The above-described device and / or system may be used, for example, to connect a syringe and cannula 15 and / or to connect and / or couple a syringe and cannula 15 together.List of reference characters1 Device 3 Cannula receiving section 5 Cannula receiving opening 7 Passage opening 9 Fastening section 11 Supporting section 13 System 15 Cannula 17 First end section of the cannula.

Claims

Device (1) for assisting in connecting a syringe and a cannula (15), comprising a cannula receiving portion (3) comprising a cannula receiving opening (5) configured to receive a first end portion (17) of a cannula (15) such that a movement of the cannula (15) about a longitudinal axis (L1) of the first end portion (17) is at least restricted.Device (1) according to claim 1, wherein the cannula receiving portion (3) further comprises a passage opening (7) which is connected to the cannula receiving opening (5) and through which a / the cannula (15), for example a portion of the cannula (15) different from the first end portion (17), can be passed.The device (1) according to claim 1 or 2, further comprising a fastening portion (9) connected to the cannula receiving portion (3) and configured to fasten the device (1) to, for example, an arm such that a movement of the device (1) is at least restricted, for example about a first axis (L2) extending orthogonally to the longitudinal axis (L1) of the first end portion (17), and / or a supporting portion (11) connected to the cannula receiving portion (3) and / or the fastening portion (9) and configured to support the device (1) to, for example, a table such that a movement of the device (1), for example about a second axis (L3) extending orthogonally to the longitudinal axis (L1) of the first end portion (17), is at least restricted, wherein optionally the first axis (L2) and the second axis (L3) are arranged orthogonally to each other.Device (1) according to claim 3, wherein the fastening portion (9) comprises or is formed by a bracelet and / or a bracelet, and / or wherein the support portion (11) comprises or is formed by a rail and / or a strip and / or a plate, and / or wherein the cannula receiving portion (3), the fastening portion (9) and the support portion (11) are formed in one piece and can optionally be produced by means of 3D printing.A system (13) comprising the device (1) according to any one of claims 1 to 4 and a cannula (15), wherein at least a part of the first end portion (17) of the cannula (15) has a shape at least substantially complementary to the cannula receiving opening (5), and / or wherein the first end portion (17) of the cannula (15) and the cannula receiving opening (5) are shaped such that at least a part of the first end portion (17) of the cannula (15) and the cannula receiving opening (5) are engageable with each other, and / or wherein at least a part of the first end portion (17) of the cannula (15) and the cannula receiving opening (5) are engaged with each other.The system (13) according to claim 5, further comprising a syringe, wherein the cannula (15), for example the first end section (17) of the cannula (15), and the syringe, for example an end section of the syringe, are connectable to each other, for example by means of a plug connection, for example by means of a screw connection, for example by means of a luer lock connection, for example by means of a luer lock system, and / or wherein the syringe, for example a / the end section of the syringe, comprises an internal thread and the cannula (15), for example the first end section (17) of the cannula (15), is screwable into the internal thread.Method for connecting a syringe and a cannula (15), comprising providing the device (1) according to one of claims 1 to 4 or providing the system (13) according to claim 5 or 6, arranging the first end section (17) of the cannula (15) in the cannula receiving opening (5) such that a / the movement of the cannula (15) about a / the longitudinal axis (L1) of the first end section (17) is at least restricted, connecting the cannula (15), for example the first end section (17) of the cannula (15), and the syringe, for example the end section of the syringe, for example by means of a plug connection, for example by means of a screw connection, for example by means of a Luer-Lock connection, for example by means of a Luer-Lock system.Method according to claim 7, wherein for arranging the first end section (17) of the cannula (15) in the cannula receiving opening (5) the cannula (15), for example a section of the cannula (15) different from the first end section (17), for example a second end section (17) of the cannula (15) or a connecting section of the cannula (15) arranged between the first and second end section (17), is guided through the passage opening (7), and / or wherein for connecting the cannula (15) and the syringe the syringe, for example the end section of the syringe, is screwed onto the cannula (15), for example the first end section (17) of the cannula (15).Use of the device (1) according to any one of claims 1 to 4 or the system (13) according to claim 5 or 6 for connecting a syringe and a cannula (15).

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