Manually actuable cutting apparatus

Abstract

The present invention relates to a manually actuable cutting apparatus (100; 200) for cutting a deformable tube line (102) for pharmaceutical purposes, wherein the cutting apparatus (100, 200) comprises a holding device (104) and an actuating device (106), interacting coupling elements (132, 170) via which the holding device (104) and the actuating device (106) are movably coupled to each other, wherein the holding device (104) and / or the actuating device (106) comprise or form at least one gripping element (112, 164) for a user, wherein the holding device (104) comprises or forms at least one through-opening (134, 148) for introducing the tube line (102), wherein the through-opening (134, 148) is preferably adapted to the size and / or the shape of the tube line (102), wherein the cutting apparatus comprises a blade element (184) which comprises or forms a cutting edge (188) and which is operatively connected to the actuating device (106) for moving the blade element (184) relative to the holding device (104), wherein, in the event of a relative movement of the holding device (104) and the actuating device (106), the cutting edge (188) is moved over the cross-sectional area of the through-opening (134, 148) in order to cut the tube line (102).

Description

[0001] HAND-OPERATED CUTTING DEVICE

[0002] The present invention relates to a hand-operated cutting device for cutting a deformable tubing for pharmaceutical purposes.

[0003] Hose lines, especially deformable hose lines, are used in a variety of ways in pharmaceutical technology. For example, deformable hose lines are used in machines for processing pharmaceutical containers, especially filling machines. Here, the containers, such as vials, syringes, cartridges, or ampoules, are filled with a liquid pharmaceutical product at a filling station. The filling station includes filling needles that can be inserted into the containers. The product is fed via hose lines connected to dosing devices. Since the filling needles are usually moved, the hose lines are deformable. Since product contact also occurs, hose lines made of polytetrafluoroethylene (PTFE) are frequently used in practice.For hose lines with product contact, it is desirable to be able to clean and, if possible, sterilize them in the installed state (CIP, Clean-in-Place, SIP, Sterilization-in-Place). This requires that the hose lines be precisely cut to length during production so that any sealing properties on the end faces of the hose lines are retained even after the cleaning and sterilization process.

[0004] For example, the unpublished DE 102023 119 099.7 by the same applicant describes the use of deformable PTFE tubing in a pharmaceutical connecting device for connection to a filling needle. The end face of this tubing is sealed to a contact area of ​​the connecting device. It is desirable that the end face be as flat as possible in a plane perpendicular to the tubing axis.

[0005] For cutting a deformable hose, particularly for pharmaceutical purposes, the present invention proposes a manually operable cutting device. For example, the hose is subsequently used together with a connecting device as described in the aforementioned DE 102023 199 099.7. However, the present invention is not limited to this.

[0006] The object of the present invention is to propose a manually operable cutting device for cutting a deformable hose line, with which the hose line can be cut reliably in a handling-friendly manner and, if possible, with a structurally simple design.

[0007] This object is achieved by a manually operable cutting device according to the invention for cutting a deformable hose line for pharmaceutical purposes, wherein the cutting device comprises a holding device and an actuating device, cooperating coupling elements via which the holding device and the actuating device are movably coupled to one another, wherein the holding device and / or the actuating device comprise or form at least one grip element for a user, wherein the holding device comprises or forms at least one through-opening for inserting the hose line, wherein the through-opening is preferably adapted to the size and / or shape of the hose line, wherein the cutting device comprises a blade element which comprises or forms a cutting edge and which is operatively connected to the actuating device for moving the blade element relative to the holding device,wherein, during a relative movement of the holding device and the actuating device, the cutting edge for cutting the hose line is moved across the cross-sectional area of ​​the through-opening.

[0008] In the cutting device according to the invention, the hose line can be inserted into the at least one through-opening. The through-opening is preferably dimensioned and shaped such that the hose line can be received therein in a form-fitting manner. The hose line consequently assumes a defined position on the holding device. The actuating device and the holding device can be moved relative to one another. This has the result that the blade element operatively connected to the actuating device is moved with the cutting edge over the cross-sectional area of ​​the through-opening so that the hose line can be grasped and cut by the cutting edge. The user can grip at least one handle element that is encompassed or formed by the holding device and / or the actuating device.Advantageously, both the holding device and the actuating device each comprise or form a gripping element. The coupling elements ensure reliable relative movement of the holding device and the actuating device, allowing the hose line to be cut to length in a user-friendly and reliable manner.

[0009] It is advantageous if the coupling elements form corresponding bearing elements for mounting the actuating device on the holding device. This allows for reliable relative movement of the holding device and the actuating device to be ensured.

[0010] For example, it can be provided that the holding device and the actuating device are displaceable relative to one another, wherein the coupling elements ensure a displaceable mounting.

[0011] In practice, it can prove particularly advantageous if the holding device and the actuating device are designed to rotate relative to each other about a rotation axis. This rotational movement allows, for example, the actuating device to be used as a lever, making it easier for the user to cut the hose line.

[0012] In the last-mentioned advantageous embodiment of the invention, it is advantageous, for example, if a first coupling element on the holding device defines the rotation axis and engages with a second coupling element that is held in a rotationally fixed manner on the actuating device. When the actuating device is rotated relative to the holding device, the user's movement is thereby guided, which also allows the movement of the blade element relative to the hose line held on the holding device to be guided.

[0013] The first coupling element is configured, for example, in a pin-shaped or pin-shaped manner, in particular as a screw or bolt, and / or as a projection on the holding device, and can extend through a through-opening formed in the second coupling element. For example, the holding device and the actuating device are connected to one another by screwing, with a screw element forming the first coupling element.

[0014] In an advantageous embodiment, the first coupling element can be, for example, a particularly cylindrical projection on the holding device that extends through a through-opening in the second coupling element. The projection can, for example, be formed integrally with the holding device.

[0015] It may prove advantageous if the second coupling element is plate-shaped and / or made of a flat material. This allows for a compact design with a simple construction. For example, manufacturing the second coupling element from a metal material may prove advantageous.

[0016] The second coupling element can, for example, be designed in the shape of a strip.

[0017] The second coupling element can be held to the actuating device, for example, by force and / or form-fitting. A clamping fixation of the second coupling element to the actuating device is conceivable, for example.

[0018] The blade element is advantageously attached to the actuating device. All possible types of fixation are conceivable, for example, by force and / or form fit, by material connection, by clamping and / or locking. Fixation using connecting or fixing elements, such as screws, bolts, rivets, or the like, is also conceivable.

[0019] It may prove advantageous, for example, if the actuating device comprises two interconnected gripping parts, between which the second coupling element is positioned, forming a gripping element. The user can grasp the gripping element and, via the movement, move the second coupling element, thereby rotating the actuating device relative to the holding device. In this case, the actuating device advantageously forms a lever.

[0020] At least one of the handle parts can comprise or form a recess in which the second coupling element is preferably positioned in a form-fitting manner. This allows a defined positioning of the coupling element with a view to ensuring reliable functioning of the cutting device.

[0021] The handle parts can be connected to each other in various ways, for example, by screwing, gluing, clamping, and / or locking. The use of connecting or fixing elements is conceivable. These can be designed in such a way that, via the handle parts to each other, the second coupling element is also fixed to at least one of the handle parts.

[0022] The handle parts can be designed as half-shells, especially if a recess is present as mentioned above. It can prove particularly advantageous if the blade element forms the second coupling element, or vice versa. This allows for a structurally simple design. Separate components for the second coupling element and the blade element are not required.

[0023] In another advantageous embodiment, a recess may be formed on the second coupling element, in which the blade element is preferably arranged in a form-fitting manner. As a result of the movement of the second coupling element, the blade element is moved relative to the hose line.

[0024] The second coupling element and the blade element can in particular be arranged in a common plane, wherein both elements can be plate-shaped and / or made of a flat material.

[0025] The recess for the blade element can, for example, extend in sections in the circumferential direction of the rotation axis, with the hose extending through the recess when arranged in the at least one through-opening. Advantageously, the hose can extend through the recess in a form-fitting manner.

[0026] The actuating device advantageously comprises or forms a lever which projects radially from the holding device with respect to the axis of rotation and which forms a gripping element.

[0027] Advantageously, at least one stop element is provided for limiting a range of movement of the actuating device relative to the holding device, especially the rotational movement.

[0028] It is advantageous if the blade element is positioned adjacent to an end face of the holding device, wherein the through-opening opens out via the end face, for cutting the hose line adjacent to the end face. The hose line emerges from the at least one through-opening, for example, at the end face, wherein the end face can be arranged on the front side of the holding device, for example on a part of the holding device. The blade element is preferably arranged with the cutting edge immediately next to the opening, so that when the blade element moves across the cross-sectional area of ​​the through-opening, a shearing movement of the hose line can be kept as small as possible and avoided if possible in order to achieve a clean cut in the hose line. The blade element can contact the end face or be arranged in the section towards the end face.

[0029] It may prove advantageous if the holding device comprises a first holding device part and a second holding device part which are connected to one another, wherein an intermediate space is formed between the holding device parts, in which intermediate space the blade element is positioned with the cutting edge at least in part or into which the blade element engages with the cutting edge, wherein a section of the at least one through-opening is formed in each of the two holding device parts and the hose line is guided through both sections. As has been shown in practice, this ensures particularly reliable function of the cutting device. The blade element is arranged in the intermediate space or engages in it.The hose line is guided through both sections of the at least one through-opening, allowing the hose line to rest on the holding device on both sides relative to the blade element when cutting through. This allows for a particularly clean cut, especially when the gap is sufficiently narrow and the blade element is preferably arranged in a form-fitting manner in the gap or engages it.

[0030] The holding device parts are connected to one another in a rotationally fixed manner, in particular if the holding device is designed to be rotatable relative to the actuating device.

[0031] The holding device parts can be connected to one another in one piece, whereby a structurally simple design can be achieved through the integral production.

[0032] Alternatively, separate retaining device parts can be provided, which can be connected to one another, for example, by screwing. A screw element can, for example, form the first coupling element, as mentioned above.

[0033] The holding device parts can engage with each other, for example via a projection and a receptacle. The projection can form a coupling element.

[0034] It is understood that the two sections of the at least one through-opening are preferably aligned with one another and / or can have an identical cross-section. As already mentioned, the holding device parts are preferably rotationally connected to one another for joint rotation about a rotation axis. In this case, it can be provided, in particular, that a connecting element connecting the holding device parts defines the rotation axis and / or forms the first coupling element.

[0035] At least one of the holding device parts can be a hollow body open on at least one side, with the open side of the hollow body facing the other holding device part. For example, the hose line extends through both holding device parts. A cut-off segment of the hose line can be removed through the open side of the hollow body after cutting or can drop down.

[0036] One of the holding device parts can, for example, be a solid body.

[0037] The holding device can, for example, be designed as a cylinder or have a cylindrical contour (in particular in the form of a vertical circular cylinder).

[0038] Particularly in combination with the last-mentioned advantageous embodiment, it can be advantageous if a circumferential surface of the holding device, particularly on the hollow body, forms a gripping element. The holding device can thus be easily and reliably grasped by the user in order to move it relative to the actuating device.

[0039] The actuating device may be free of any connection to a lateral surface of the holding device.

[0040] The at least one through-opening can in particular have a circular cross-section.

[0041] The cutting edge can be configured to comprise two sections aligned at an angle to each other at a vertex, and the vertex can be moved through an axis of the at least one through-opening when the holding device and the actuating device are moved. The angle is, for example, approximately 90°. The cutting edge can form a point at the vertex to reliably cut the hose line.

[0042] Advantageously, the apex extends through the axis of the through-opening, with one axis of the hose preferably coinciding with the axis of the through-opening. It is advantageous if the holding device comprises or forms two or more through-openings that have different cross-sectional areas. This offers, for example, the possibility of reliably cutting hoses of different diameters, which can preferably be accommodated in a respective through-opening with a form-fitting fit. The cutting device thus exhibits a high degree of versatility.

[0043] In a specific implementation of the holding device, for example, five or more through openings can be provided.

[0044] For circular through-holes, for example, the diameters range from approximately 1 mm to approximately 20 mm.

[0045] Commonly used hose lines in practice have diameters of 3.2 mm, 5 mm, and 9.5 mm, for example. Existing through-holes, for example, are adapted in diameter to these hose lines.

[0046] For example, the through holes are arranged on the support structure in ascending or descending order of their cross-sectional area. For circular cross-sections, the cross-sectional areas correlate with the diameters of the through holes.

[0047] For example, adjacent through openings have identical angular distances from one another with respect to the axis of rotation, in the case of a holding device that is rotatable relative to the actuating device.

[0048] For through-holes with a circular cross-section, it may be intended that the axes defined by the through-holes lie on an imaginary circular line, which is drawn, in particular, around a center point on the rotation axis. The distances of the axes of the through-holes from the rotation axis may be identical.

[0049] Alternatively, in the case of through-openings with a circular cross-section, it can be provided, for example, that an imaginary circular line, in particular around a center point on the axis of rotation, forms a radially outer or radially inner envelope of the through-openings.

[0050] The following description of preferred embodiments of the invention, taken in conjunction with the drawings, serves to explain the invention in more detail. They show:

[0051] Figure 1: a perspective view of the cutting device according to the invention and a hose line to be cut;

[0052] Figure 2: an exploded view of the cutting device from Figure 1 and the hose assembly;

[0053] Figure 3: a plan view of the cutting device and the hose assembly before cutting;

[0054] Figure 4: a representation corresponding to Figure 3 during cutting;

[0055] Figure 5: a sectional view taken along line 5-5 in Figure 4;

[0056] Figure 6: an enlarged view of detail A in Figure 5;

[0057] Figure 7: a perspective view of the cutting device according to the invention in a further preferred embodiment and a hose line;

[0058] Figure 8: a perspective partially exploded view of the cutting device and the hose assembly of Figure 7;

[0059] Figure 9: a perspective view of the cutting device and the hose line from Figure 7 before cutting;

[0060] Figure 10: a plan view of the cutting device and the hose assembly at the start of cutting; and

[0061] Figure 11: a sectional view along line 11-11 in Figure 10 after cutting. Figures 1 to 6 refer to an advantageous embodiment of the cutting device according to the invention, designated overall by reference numeral 100. The cutting device is used to cut a hose line 102. A user (not shown in the drawing) operates the manually operable cutting device 100.

[0062] The hose line 102 is used, for example, for pharmaceutical purposes and serves to supply a pharmaceutical product to a filling needle at a filling station in a filling machine. The product is then poured into pharmaceutical containers, such as vials, syringes, cartridges, or ampoules, via the filling needle.

[0063] The hose line 102 is preferably designed for pharmaceutical use and is suitable for CIP (cleaning-in-place) and SIP (sterilization-in-place) applications. The hose line 102 is deformable and, for example, made of PTFE for the aforementioned purposes.

[0064] In this example, the hose has a diameter of approximately 10 mm and a wall thickness of approximately 1 mm.

[0065] The cutting device 100 comprises a holding device 104 and an actuating device 106. As can be seen in particular from Figures 1, 2, and 5, the holding device 104 has a substantially cylindrical contour and is designed as a cylinder 108, in particular as a vertical circular cylinder. The holding device 104 comprises a lateral surface 110, which in this case forms a gripping element 112. The user can grasp the gripping element 112 to rotate the holding device 104 relative to the actuating device 106.

[0066] In the present example, the holding device 104 comprises two holding device parts 114, 116. The holding device parts 114, 116 are aligned and coaxial with one another. They each form an axial section of the holding device 104 relative to an axis of the cylinder 108. The lateral surface 110 is formed by both holding device parts 114, 116. The gripping element 112 is presently encompassed by the holding device part 116, although the user could also grip the holding device part 114. In the axial direction, the holding device part 116 has an extension that is approximately three times as large as the extension of the holding device part 114. However, this ratio could also be different.

[0067] The holding device parts 114, 116 are connected to one another. For this purpose, the holding device 104 comprises a connecting element 118, designed as a screw element 120. The screw element extends through the holding device part 116 and is screwed to the holding device part 114 with an internal thread. An axis of the screw element 120 coincides with the axis of the cylinder 108.

[0068] To ensure a rotationally fixed connection between the holding device parts 114, 116, a projection 122 is provided in the axial direction on the holding device part 114, which engages with a corresponding receptacle 124 on the holding device part 116. The projection 122 is configured as a polygon, and the receptacle 124 is formed to correspond to the polygon. In this way, the holding device parts 114 and 116 are rotated when the user grasps the grip element 112.

[0069] In the present case, the connection via the screw element 120 does not ensure the rotationally fixed coupling of the holding device parts 114, 116. This could nevertheless be the case.

[0070] The holding device part 114 is designed as a solid body, except for the through-openings mentioned below. The holding device part 116 forms a hollow body 126. The hollow body 126 is open on a side 128 facing away from the holding device part 114. The holding device part 116 thus has the shape of a sleeve that is open on one side and closed on the other, except for the through-openings mentioned below.

[0071] The projection 122 defines a rotation axis 130 about which the actuating device 106 is rotatable relative to the holding device 104. For the rotational movement, the projection 122 forms a (first) coupling element 132. The projection 122 is pin-shaped.

[0072] The rotation axis 130 is both the axis of the cylinder 108 and the axis of the screw element 120.

[0073] According to the present invention, the holding device 104 comprises or forms at least one through-opening 134 for passing through the hose line 102. In the present example, several through-openings 134 are present, a total of eight. However, this number is only exemplary.

[0074] Each through-opening 134 comprises a first section 136 on the holding device part 114 and a second section 138 on the holding device part 116. The sections 136, 138 have identical cross-sections and are aligned with one another (Figure 5). The through-opening 134 forms an axis 140 that is aligned parallel to the rotation axis 130.

[0075] The through-openings 134 each have a circular cross-section. The difference between the through-openings 134 is that their diameters, and thus their cross-sectional areas, are different. In total, there are as many different diameters as there are through-openings 134 provided. For example, the diameter of the through-opening 134 increases from approximately 1 mm at the smallest diameter to approximately 12 mm at the largest through-opening 134.

[0076] It is understood that the respective sections 136, 138 have identical diameters.

[0077] The through-openings 134 are adapted in terms of shape and size to the hose lines 102. Accordingly, the respective through-openings 134 are provided for hose lines 102 of different dimensions commonly used in the pharmaceutical industry.

[0078] In particular, it is possible to insert the hose line 102 into the through-opening 134 in a form-fitting manner. The hose line 102 can thus be supported flatly on both holding device parts 114, 116 in the region of the sections 136 and 138, respectively, on the respective inner lateral surfaces 142 and 144, respectively.

[0079] During use of the cutting device 100, the hose line 102 is guided, for example, through section 136 and then through section 138. The hose line 102 can exit from an opening 146 of the hollow body 126 on the side 128 or be arranged with the inserted end within the hollow body 126, as shown in Figure 5. In the present example, the function of the cutting device 100 is explained using a raised through-opening 148 (from the set of through-openings 134) that is adapted in size and shape to the hose line 102.

[0080] The through-openings 134 are arranged in this case such that the respective axis 140 extends at a distance from the rotational axis 130. The through-openings 134 are arranged on the holding device 104 according to their size, diameter, and cross-sectional area. Adjacent through-openings 134 have identical angular distances from one another with respect to the rotational axis 130.

[0081] The axes 140 are each spaced identically from the rotation axis 130. An imaginary circular line 150 through the axes 140 has its center on the rotation axis 130.

[0082] The holding device parts 114, 116 have end surfaces 152 and 154 facing the respective other holding device parts 116, 144. The projection 122 is dimensioned in this case such that the end surfaces 152, 154 are spaced apart from one another. This forms a gap 156 between the holding device parts 114, 116. The gap 156 is preferably relatively narrow. Its height can be, for example, approximately 1 mm to 5 mm.

[0083] The actuating device 106 comprises or forms a lever 158 projecting radially from the holding device 104 with respect to the rotation axis 130. The lever 158 is dimensioned such that it can be comfortably grasped and moved by the user.

[0084] The actuating device 106 comprises two handle parts 160, 162, which together form a handle element 164 of the actuating device 106.

[0085] The handle parts 160, 162 are designed to be congruent and arranged one above the other in the axial direction. A respective first end 166 borders the outer surface 110. A respective second end 168 faces away from the outer surface 110. The handle parts 160, 162 are free of any connection to the outer surface 110. This also applies to the actuating device 106 as a whole. A (second) coupling element 170 of the cutting device 100 is arranged between the handle parts 160, 162. In the present case, the coupling element 170 is plate-shaped and, in particular, made of a flat material, for example, a metal sheet.

[0086] The coupling element 170 is positioned not only between the handle parts 160, 152, but also between the holding device parts 114, 116. The outer contour of the coupling element 170 is advantageously adapted both to the handle parts 160, 162 and does not protrude beyond them, and to the holding device parts 114, 116, beyond which the coupling element 170 also does not protrude.

[0087] The material thickness of the coupling element 170 is preferably slightly less than the height of the gap 156 in order to avoid or minimize friction between the end surfaces 152, 154.

[0088] The coupling element 170 is arranged in a form-fitting manner in the axial direction between the handle parts 160, 162 and is secured thereto. For this purpose, connecting elements 172, shown schematically in the drawing, are used. These are, for example, screw elements 174 that connect the handle parts 160, 162 to one another and preferably pass through the coupling element 170. In this way, the coupling element 170 can be firmly clamped between the handle parts 160, 162.

[0089] It is understood that other types of connections are conceivable. For example, the coupling element 170 is connected on each side to the handle part 160, 162 facing it by adhesive bonding.

[0090] The coupling element 170 has a through-opening 176. The projection 122 engages positively through the through-opening 176. As a result, the coupling element 132 in the form of the projection 122 and the coupling element 170 form corresponding bearing elements 178, 180. The actuating device 106 is consequently rotatably mounted relative to the holding device 104. This ensures reliable function of the cutting device 100.

[0091] A recess 182 in the form of an opening is formed in the coupling element 170. The cutting device 100 comprises a blade element 184 arranged in the recess 182. In particular, the blade element 184 is arranged in a form-fitting manner in the recess 182. As a result, the blade element 184 can be supported on an edge 186 of the recess 182 when a force is exerted on the blade element 184 during a rotation of the holding device 104.

[0092] The blade element 184 is plate-shaped in the present case and defines a common plane with the coupling element 170.

[0093] For cutting the hose line 102, the blade element 184 has a cutting edge 188. The cutting edge 188 is angled in this case and has two sections 190 aligned at an angle of substantially 90° to each other. The sections 190 meet at an apex 192, where the blade element 184 forms a tip 194. The tip 194 is spaced from the rotation axis 130 by the axes 140 of the through-openings 134 and accordingly lies on the circular line 150.

[0094] The recess 182 also extends in sections in the circumferential direction of the rotation axis 130 so that the hose line 102 can be guided through the recess 182.

[0095] The recess 182 and thus the blade element 184 are arranged such that the blade element is arranged in or engages in the intermediate space 156. When the holding device 104 is moved, the cutting edge moves across the cross-sectional area of ​​the through-opening 134. Due to the blade element being adjacent to the end surfaces 152, 154, the movement occurs very close to the respective opening of the sections 136, 138.

[0096] To cut the hose line 102, for example, you can proceed as follows:

[0097] First, the hose line 102 is passed through the sized through-opening 134. In the present example, this is the through-opening 148 (Figures 1 to 3). Prior to this, the angular position of the holding device 104 relative to the actuating device 106 can be adjusted such that the blade element 184 is positioned outside the free cross-sectional area of ​​the through-opening 134 and the hose line 102 can be passed through both sections 136, 138.

[0098] The hose line 102 also extends through the recess 182 when positioned at the appropriate angle. The user then grasps the grip element 164 of the actuating device and the grip element 112 of the holding device 104 to rotate the devices 104, 106 relative to each other about the rotation axis 130. In the present case, the rotation of the holding device 104 occurs clockwise in a plan view of the cutting device 100 (arrow 196 in Figures 3 and 4).

[0099] The rotation moves the cutting edge 188 across the cross-sectional area of ​​the through-opening 134. The hose line 102 is thereby cut through in the intermediate space 156. It may be particularly advantageous to perform the cutting movement with the tip 194 leading the way. Subsequently, the sections 190 of the cutting edge 188 cut (Figures 4 to 6).

[0100] The cutting device 100 allows for a particularly good cut of the hose line 102. The cut is made in a plane perpendicular to an axis (198) of the hose line, with axes 140 and 198 coinciding.

[0101] It is advantageous that the blade element 184 is positioned adjacent to the end surfaces 152, 154. This prevents shearing movement on the hose line 102 within the sections 136, 138, which is advantageous for a planar cut.

[0102] Figures 5 and 6 illustrate the situation in which the hose assembly 102 has already been partially cut, but not completely. After the hose assembly 102 has been completely cut, the cut-off portion can fall down and exit through the opening 146. Alternatively, the cut-off portion can be grasped and pulled out of the hollow body 126 through the opening 146.

[0103] The following describes an advantageous embodiment of the cutting device according to the invention, illustrated in Figures 7 to 11 and designated by reference numeral 200. Identical reference numerals are used for identical or equivalent features or components. The advantages achievable with the cutting device 100 can also be achieved with the cutting device 200, so reference is made to the above explanations in this regard. Only the essential differences between the cutting devices 100, 200 will be discussed. In the cutting device 200, the projection 122 and the receptacle 124 are omitted from the holding device 104. The screw element 120 forms the (first) coupling element 132.

[0104] The holding device parts 114, 116 are connected to one another in a rotationally fixed manner via two pin-shaped connecting elements in the present example, which are arranged at a distance from the rotation axis 130 (Figure 10).

[0105] The range of movement of the holding device 104 relative to the actuating device 106 is formed by a stop element 104 in the form of a projection on one of the holding device parts 114, 116, which is arranged in the intermediate space 156. In the present case, the stop element 204 is formed by the holding device part 114 and can interact with the blade element 184.

[0106] In the actuating device 106, one of the handle parts 160, 162 has a recess 206 (Figure 9). The (second) coupling element 170 is arranged in a form-fitting manner in the recess 206 and is thereby held in a rotationally fixed manner on the actuating device 106. The handle parts 160, 162 lie directly against one another and are connected to one another, for example, via the screw elements 174 (Figures 10 and 11).

[0107] In the cutting device 200, the blade element 184 forms the second coupling element 170 and simultaneously the bearing element 180. The through-opening 176 is formed on the blade element 184. The coupling element 170 is strip-shaped.

[0108] The cutting edge 188 extends in a straight line and runs in the longitudinal direction of the blade element 184. In the axial direction, the cutting edge 188 runs along a secant through the contour of the holding device 104.

[0109] The through openings 134 are arranged on the holding device 104 such that an imaginary circular line 208 with its center on the rotation axis 130 forms a radially outer envelope of the through opening 134 (Figure 10).

[0110] For example, the cutting device 200 can be used as follows:

[0111] First, the hose line 102 is guided through the appropriate through-opening 134, in this case the through-opening 148. The user then grasps the gripping elements 112 and 164 and rotates the holding device 104 and the actuating device 106 relative to each other. The direction of rotation of the holding device 104 is counterclockwise in plan view (arrow 210 in Figure 10).

[0112] Figure 9 shows the process prior to cutting. At the time shown in Figure 10, the cutting edge 188 contacts the hose assembly 102, and the cutting process begins.

[0113] Figure 11 illustrates the situation at a later time after the hose line 102 has been cut. The cut part of the hose line 102 can fall down through the opening 146, or any protruding section can be pulled out of the hollow body 126 by the user.

[0114] List of reference symbols , 200 cutting device hose line holding device actuating device cylinder , 142, 144 outer surface , 164 handle element , 116 holding device part , 172, 202 connecting element , 174 screw element projection receptacle hollow body side axis of rotation first coupling element , 148, 176 through opening , 138, 190 section , 198 axis opening , 208 circular line , 154 end surface gap lever , 162 handle part first end second end second coupling element , 180 bearing element recess blade element edge cutting edge vertex tip , 210 arrow stop element recess

Claims

PATENT CLAIMS 1 . Manually operable cutting device (100; 200) for cutting a deformable hose line (102) for pharmaceutical purposes, wherein the cutting device (100, 200) comprises a holding device (104) and an actuating device (106), cooperating coupling elements (132, 170) via which the holding device (104) and the actuating device (106) are movably coupled to one another, wherein the holding device (104) and / or the actuating device (106) comprise or form at least one gripping element (112, 164) for a user, wherein the holding device (104) comprises or forms at least one through-opening (134, 148) for inserting the hose line (102), wherein the through-opening (134, 148) is preferably adapted to the size and / or the shape of the hose line (102), wherein the Cutting device (100;200) comprises a blade element (184) which comprises or forms a cutting edge (188) and which is operatively connected to the actuating device (106) for moving the blade element (184) relative to the holding device (104), wherein during a relative movement of the holding device (104) and the actuating device (106) the cutting edge (188) is moved across the cross-sectional area of ​​the through-opening (134, 148) for cutting the hose line (102); 2. Cutting device (100; 200) according to claim 1, characterized in that the coupling elements (132, 170) form corresponding bearing elements (178, 180) for mounting the actuating device (106) on the holding device (104).

3. Cutting device (100; 200) according to claim 1 or 2, characterized in that the holding device (104) and the actuating device (106) are designed to be rotatable relative to one another about an axis of rotation (130), wherein a first coupling element (132) on the holding device (104) defines the axis of rotation (130) and is in engagement with a second coupling element (170) which is held in a rotationally fixed manner on the actuating device (106).

4. Cutting device (100; 200) according to claim 3, characterized in that the first coupling element (132) is designed in a pin-shaped or pin-shaped manner, in particular as a screw or bolt, and / or as a projection (122) on the holding device (104), and passes through a through opening (176) formed in the second coupling element (170).

5. Cutting device (100200) according to claim 3 or 4, characterized in that the second coupling element (170) is plate-shaped and / or is made of a flat material.

6. Cutting device (100200) according to one of claims 3 to 5, characterized in that the second coupling element (170) is held on the actuating device (106) by force and / or form locking.

7. Cutting device (100; 200) according to one of claims 3 to 6, characterized in that the actuating device (106) comprises two interconnected handle parts (160, 162), between which the second coupling element (170) is positioned, and which form a handle element (164), in particular that at least one of the handle parts (160, 162) comprises or forms a recess (206) in which the second coupling element (170) is preferably positioned in a form-fitting manner.

8. Cutting device (100; 200) according to one of claims 3 to 7, characterized in that the blade element (184) forms the second coupling element (170), or vice versa.

9. Cutting device (100; 200) according to one of claims 3 to 8, characterized in that a recess (182) is formed on the second coupling element (170), in which recess the blade element (184) is preferably arranged in a form-fitting manner, wherein the second coupling element (170) and the blade element (184) are arranged in particular in a common plane.

10. Cutting device (100; 200) according to claim 9, characterized in that the recess (182) extends in sections in the circumferential direction of the axis of rotation (130) and the hose line (102) extends through the recess (182) when arranged in the at least one through-opening (134, 148).

11. Cutting device (100; 200) according to one of the preceding claims, characterized in that the actuating device (106) comprises or forms a lever (158) projecting radially from the holding device (104) with respect to the axis of rotation (130), which forms a handle element (112, 164).

12. Cutting device (100; 200) according to one of the preceding claims, characterized in that at least one stop element (204) is provided for limiting a range of movement of the actuating device (106) relative to the holding device (104).

13. Cutting device (100; 200) according to one of the preceding claims, characterized in that the blade element (184) is positioned adjacent to an end surface (152, 154) of the holding device (104), wherein the at least one through opening (134, 148) opens via the end surface (152, 154) for cutting the hose line (102) adjacent to the end surface (152, 154).

14. Cutting device (100; 200) according to one of the preceding claims, characterized in that the holding device (104) comprises a first holding device part (114) and a second holding device part (116) which are connected to one another, wherein an intermediate space (156) is formed between the holding device parts (114, 116), in which intermediate space the blade element (184) is positioned at least in sections with the cutting edge (188) or in which intermediate space the blade element (184) engages with the cutting edge (188), wherein in each of the two holding device parts (114, 116) a section (136, 138) of the at least one through-opening (134, 148) is formed and the hose line (102) is guided through both sections (136, 138).

15. Cutting device (100; 200) according to claim 14, characterized in that the holding device parts (114, 116) are rotationally connected to one another for joint rotation about an axis of rotation (130), in particular that a connecting element (118, 172, 202) connecting the holding device parts (114, 116) to one another defines the axis of rotation (130) and / or forms the first coupling element (132).

16. Cutting device (100; 200) according to claim 14 or 15, characterized in that at least one of the holding device parts (114, 116) is a hollow body (126) open on at least one side (128), wherein the open side (128) of the hollow body (126) is opposite the other holding device part (114, 116), and / or that one of the holding device parts (114, 116) is a solid body.

17. Cutting device (100; 200) according to one of claims 14 to 16, characterized in that the holding device (104) is designed as a cylinder (108) or has a cylindrical contour and / or that a lateral surface (110, 142, 144) of the holding device (104), in particular on the hollow body (126), forms a grip element (162, 164).

18. Cutting device (100; 200) according to one of the preceding claims, characterized in that the at least one through opening (134, 148) has a circular cross-section.

19. Cutting device (100200) according to one of the preceding claims, characterized in that the cutting edge (188) comprises two sections (190) aligned at an angle to one another at an apex (192), and in that the apex (192) is moved by an axis (140) of the at least one through-opening (134, 148) when the holding device (104) and the actuating device (106) are moved.

20. Cutting device (100; 200) according to one of the preceding claims, characterized in that the holding device (104) comprises or forms two or more through-openings (134, 148) which have different cross-sectional areas from one another, preferably more than 5 through-openings (134, 148).

21. Cutting device (100; 200) according to claim 20, characterized in that the through openings (134, 148) are arranged on the holding device (104) in the order of their cross-sectional area, ascending or descending, and / or that adjacent through openings (134, 148) have identical angular distances from one another with respect to the axis of rotation (130).

22. Cutting device (100; 200) according to claim 20 or 21, characterized in that in the case of through-openings (134, 148) with a circular cross-section, the axes (140) defined by the through-openings (134, 148) lie on an imaginary circular line (150), in particular around a center point on the axis of rotation (130).

23. Cutting device (100; 200) according to one of claims 20 to 22, characterized in that in the case of through-openings (134, 148) with a circular cross-section, an imaginary circular line (208), in particular around a center point on the axis of rotation (130), forms a radially outer or radially inner envelope of the through-openings (134, 148).

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