MEDICAL QUICK COUPLING SYSTEM FOR ATTACHING A GUIDE SLEEVE WITHOUT TOOLS

Abstract

A medical quick coupling system includes a guide sleeve into which a medical instrument or medical device can be received and aligned or oriented. A quick coupling includes a radially inner carrier sleeve, in which the guide sleeve can be received and aligned or oriented, and a radially outer actuating sleeve that is movable relative to the carrier sleeve, with a receiving position and a fixing position. A coupling mechanism is arranged between the actuating sleeve and carrier sleeve, so that insertion of the guide sleeve into the quick coupling moves the coupling mechanism from a disengaged position to an engaged position. The coupling mechanism thereby disengages the actuating sleeve from the receiving position into the fixing position. Actuation of the actuating sleeve from the fixing position against a pretension force into the receiving position moves the coupling mechanism from the engaged position into the disengaged position.

Claims

1. A medical quick coupling system for mounting a guide sleeve without tools, the medical quick coupling system comprising: at least one guide sleeve having a guide axis in which a medical instrument or a medical device is receivable and alignable or orientable in a direction of the guide axis; a quick coupling having a carrier sleeve into which the at least one guide sleeve is receivable, and a radially outer actuating sleeve, which is movable relative to the carrier sleeve with a first receiving position and a second fixing position; and a coupling mechanism disposed between the actuating sleeve and the carrier sleeve, the coupling mechanism being adapted so that an insertion of the at least one guide sleeve into the quick coupling moves the coupling mechanism from a first disengaged position into a second engaged position, the coupling mechanism thereby moving the actuating sleeve from the receiving position into the fixing position, and the coupling mechanism further being adapted so that an actuation of the actuating sleeve from the second fixing position against a pretension force into the first receiving position moves the coupling mechanism from the second engaged position into the first disengaged position.

2. The medical quick coupling system according to claim 1, wherein the coupling mechanism has at least one actuating element that protrudes radially into a receiving space of the carrier sleeve through a through-hole of the carrier sleeve, so that the actuating element is taken along by the at least one guide sleeve when inserted in an insertion direction.

3. The medical quick coupling system according to claim 2, wherein the at least one guide sleeve has at least one actuating section, which is provided and designed to engage with the at least one actuating element during insertion.

4. The medical quick coupling system according to claim 3, wherein the at least one actuating section is formed by a radially extending end face of a guide groove or guide recess extending into a distal end section in the insertion direction.

5. The medical quick coupling system according to claim 4, wherein a plurality of guide grooves or guide recesses are arranged with the end faces distributed circumferentially, and wherein an insertion section of the at least one guide sleeve is chamfered and/or rounded, into which the guide grooves or guide recesses run out in a chamfered or rounded manner, whereby an insertion aid of the at least one actuating element into the respective guide groove or guide recess and/or an aid for sliding the respective guide groove or guide recess onto the at least one actuating element is formed.

6. The medical quick coupling system according to claim 2, wherein the coupling mechanism comprises a first coupling sleeve and a second coupling sleeve, the first coupling sleeve and the second coupling sleeve being coaxially arranged and axially displaceable in an intermediate space between the carrier sleeve and the actuating sleeve, wherein the first coupling sleeve has a first sleeve section with a larger, first inner diameter and a second sleeve section with a smaller, second inner diameter, viewed in an axial direction, and wherein the first coupling sleeve cooperates with a first locking means in such a way that the first coupling sleeve engages the first locking means radially inwardly by moving over the first locking means from the larger, first inner diameter to the smaller, second inner diameter, which engages in the at least one guide sleeve in a form-fitting manner, so that the at least one guide sleeve is coupled to the carrier sleeve, wherein the first coupling sleeve interacts with the first, locking means in such a way that the first coupling sleeve releases the first locking means radially outwards when moving back from the smaller, second inner diameter to the larger, first inner diameter, so that the at least one guide sleeve is uncoupled from the carrier sleeve.

7. The medical quick coupling system according to claim 6, wherein the second coupling sleeve has, as seen in the axial direction, a first sleeve section with a larger, first inner diameter and a second sleeve section with a smaller, second inner diameter, and wherein the second coupling sleeve cooperates with a second, radially outer locking means in such a way that the second coupling sleeve moves over the second, radially outer locking means from the larger, first inner diameter to the smaller, second inner diameter, the second, radially outer locking means radially inward, which engages in the carrier sleeve in a form-fitting manner, so that the first coupling sleeve is coupled to the carrier sleeve, and wherein the second coupling sleeve is connected to the second, radially outer locking means of the coupling mechanism cooperates in such a way that the second coupling sleeve releases the second, radially inner locking means radially outwards again when moving back from the smaller, second inner diameter to the larger, first inner diameter so that the first coupling sleeve is uncoupled from the carrier sleeve.

8. The medical quick coupling system according to claim 6, wherein the first coupling sleeve is coupled to the actuating sleeve in a motion-coupled manner.

9. The medical quick coupling system according to claim 6, wherein the second coupling sleeve is motion-coupled to the at least one actuating element.

10. The medical quick coupling system according to claim 6, wherein the coupling mechanism has a first spring by which the actuating sleeve is prestressed in a direction of the second fixing position and the first coupling sleeve which is coupled in motion to the actuating sleeve is prestressed in a direction of movement of the first locking means from the larger, the first inner diameter to the smaller, second inner diameter.

11. The medical quick coupling system according to claim 10, wherein the coupling mechanism has a second spring by which the second coupling sleeve is supported on the first coupling sleeve, and by which the second coupling sleeve is pre-stressed in the direction of passing over the second locking means from the larger, first inner diameter to the smaller, second inner diameter.

12. The medical quick coupling system according to claim 1, wherein: the at least one guide sleeve comprises a first guide sleeve and a second guide sleeve, the first guide sleeve and the second guide sleeve having interfaces effective to the coupling mechanism that are identical or at least have a same effect, and the first guide sleeve and the second guide sleeve having different receptacles for receiving the medical instrument or the medical device.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The present disclosure is explained below in more detail with reference to preferred embodiments with reference to the accompanying figures.

[0047] FIG. 1 shows a perspective view of a medical quick coupling system with a quick coupling and guide sleeve according to an exemplary embodiment, arranged on an adapter of a robotic end segment;

[0048] FIG. 2 shows a side view of the medical quick coupling system according to FIG. 1 with a first receiving position and with the guide sleeve disengaged;

[0049] FIG. 3 shows a perspective side view of the medical quick coupling system according to FIGS. 1 and 2 with a second fixing position and with an engaged guide sleeve;

[0050] FIG. 4 shows a perspective side view of the medical quick coupling system according to FIG. 3 with illustrated actuating direction for disengaging the coupled guide sleeve;

[0051] FIG. 5 shows a side view of the medical quick coupling system according to FIGS. 1 through 4 with the first receiving position and with the guide sleeve disengaged and partially ejected;

[0052] FIG. 6 shows an exploded view from the side of the quick coupling of the medical quick coupling system according to FIGS. 1 through 5;

[0053] FIG. 7 shows a perspective exploded view of the quick coupling according to FIG. 6;

[0054] FIG. 8 shows a longitudinal section of the medical quick coupling system guided by a guide axis according to FIGS. 1 through 7;

[0055] FIG. 9 shows a longitudinal section of the medical quick coupling system according to FIG. 8 guided through the guide axis and offset by 90 degrees to the longitudinal section according to FIG. 8;

[0056] FIG. 10 shows the longitudinal section according to FIG. 8 in a perspective view;

[0057] FIG. 11 shows the longitudinal section according to FIG. 9 in a perspective view; and

[0058] FIGS. 12 through 17 each show, in a perspective full or partial view, exemplary embodiments of guide sleeves of a medical quick coupling system according to the disclosure.

[0059] The figures are schematic in nature and are only intended to aid understanding of the present disclosure. The features of the various embodiments can be interchanged.

DETAILED DESCRIPTION

[0060] According to the disclosure, the following describes how a medical quick coupling system is constructed and how it engages and disengages a guide sleeve of a medical instrument so that the rapid and repeatable exchange and the correspondingly safe orientation of a medical instrument or device on a robot-guided surgical system or on an arm alignment system can be carried out.

[0061] FIG. 1 shows in a perspective view of a medical quick coupling system 2 with a quick coupling 4 with a radially outer concave, conical actuating sleeve 14 and a receiving and coupling guide sleeve 6, which can be inserted into the quick-release 4 according to an exemplary embodiment. The quick coupling 4 is fixedly arranged on a fork-shaped medical fastening adapter 8, which in turn is fastened to an end segment 10 of a surgical robot. The fastening of the fastening adapter 8 can be detached at the end segment 10 and this is accomplished in the shown exemplary embodiment by means of a three-point support of a three-part coupling structure (not shown). A fastening position of the fastening adapter 8 on the end segment 10 can be varied between at least two layers by means of an adjusting means 12 designed as a screw gear.

[0062] FIGS. 2 to 5 show the quick coupling system 2 with the actuating sleeve 14 and the guide sleeve 6 according to FIG. 1 in a side view, or rather in a perspective side view.

[0063] FIG. 2 shows the actuating sleeve 14 in its first receiving position A, in which it is maximally distally arranged and fixed in an insertion direction of the guide sleeve, and in which the guide sleeve 6 is not yet inserted into the quick coupling 4 and is therefore still disengaged.

[0064] FIG. 3 shows the actuating sleeve 14 in its second fixing position B, in which it is arranged at most proximally in an insertion direction of the guide sleeve and in which it is prestressed by means of a pretensioning force of a first spring (not shown). The guide sleeve 6 is inserted into the quick coupling 4 and coupled.

[0065] FIG. 4 shows, like FIG. 3, the actuating sleeve 14 in its second fixing position B. In addition, it shows an actuating direction of the actuating sleeve 14 (arrow downwards) with which the disengagement of the coupled guide sleeve 6 is triggered.

[0066] Finally, FIG. 5 shows the medical quick coupling system 2 according to FIGS. 1 through 4 following the actuation of the actuating sleeve 14 in its actuation direction according to FIG. 3 and in its first receiving position A, which it resumed after said actuation. A coupling mechanism (see the following figures) of the quick coupling 4 has partially ejected the disengaged guide sleeve 6, so that it can be easily gripped for a change.

[0067] FIG. 6 shows an exploded view from the side of the quick coupling 4 of the medical quick coupling system 2 according to FIGS. 1 through 5. Along the insertion or longitudinal axis of the quick coupling system 2, the following are arranged from bottom to top, or from distal to proximal: a carrier sleeve 16 with a fastening flange 18 at the distal end, the actuating sleeve 14, a first spring 20, two diametrically arranged connecting pins 22, a second spring 36, two diametrically arranged second balls 24, two diametrically arranged first balls 26, a first, radially inner coupling sleeve 28, actuating elements 34, a second, radially outer coupling sleeve 30 and a stop sleeve 32 arranged at the proximal end.

[0068] FIG. 7 shows the exploded view of the quick coupling 4 of the medical quick coupling system 2 according to FIG. 6 in a perspective view from the side.

[0069] FIG. 8 shows a longitudinal section of the medical quick coupling system 2 according to FIGS. 1 through 7 guided through a guide axis of the guide sleeve 4; FIG. 9 shows a longitudinal section of the medical quick coupling system 2 rotated by 90 degrees in relation to the longitudinal section according to FIG. 8; FIG. 10 shows a perspective view of the longitudinal section of the quick coupling according to FIG. 8 (without guide sleeve) and FIG. 11 shows a perspective view of the longitudinal section according to FIG. 9 (also without guide sleeve).

[0070] With reference in particular to FIGS. 8 through 11, the structural design and the mode of action of the quick coupling system 2 are described.

[0071] According to FIG. 8, the guide sleeve 6 with a guide shaft 38 is inserted into a cylindrical receiving space 40 of the carrier sleeve 16 of the quick coupling 4 and it is in a disengaged state. On a proximal end section, the guide sleeve 6 comprises a radially expanded, externally grooved head section 42, which, due to its knurling, is suitable for manual gripping or, for example, for coupling a device for adjusting the height of an instrument or device on the guide sleeve 6.

[0072] Contrary to the pretensioning force of the first spring 20, the actuating sleeve 14 of the quick coupling 4 is offset into its first receiving position A and is thus located near the fastening flange 18 of the carrier sleeve 16.

[0073] The stop sleeve 32 is pushed onto a proximal end section of the carrier sleeve 16 of the quick coupling 4, which forms an axial stop for the head section 42 together with a radial collar when the guide sleeve 6 is coupled. Distally spaced from the proximal end section of the carrier sleeve 16, said carrier sleeve comprises four circumferentially equally distributed, first, radial through-recesses 44, in which the four first balls 26 (first catching means) are received. The first, radial through-recesses 44 are conically tapered radially inward, so that it is ensured that the first balls 26 do not fall into the receiving space 40 of the carrier sleeve even when the guide sleeve 6 is removed and remain in the wall of the carrier sleeve 16.

[0074] The first balls 26 of the quick coupling 4 are provided to couple the guide sleeve 6 into the carrier sleeve 16. For this purpose, the guide sleeve 6 has a row of first coupling recesses 46 on its outer circumference that are adapted to the first balls 26. In the exemplary embodiment shown, this is realized by a plurality of spherical coupling recesses 46 on the outer circumference of the guide shaft 38, so that when the first balls 26 engage in the first coupling recesses 46, a rotational orientation of the guide sleeve 6 is also defined, which enables a rotational orientation of the instrument or device that can be arranged therein. Alternatively, only a first coupling recess 46 is provided, which is configured as a circumferential groove, so that a rotational orientation of the guide sleeve 6 in the carrier sleeve 16 cannot be defined.

[0075] To actuate the first balls 26, i.e. to engage the first balls 26 radially inward and to release the first balls 26 radially outward, the quick coupling 4 has the first, radially inner coupling sleeve 28, which is essentially cylindrical and which is slidably guided on the outside circumference of the carrier sleeve 16 in the axial direction, so that it can move over the first balls 26 in the axial direction with their different inner diameters. Accordingly, the first radially inner coupling sleeve 28 has at a proximal end portion a first circular cylindrical recess 48 with a first, larger inner diameter. In the distal direction, a first radial shoulder 50 is tapered radially inward. The first radial shoulder 50 tapers down to a second, smaller inner diameter of a second, distally formed, circular-cylindrical recess 52 of the first, radially inner coupling sleeve 28.

[0076] A movement of the first balls 26 through the first radially inner coupling sleeve 28 from its first, larger inner diameter to its second, smaller inner diameter thus leads to the engagement of the first balls 26 radially inwards into the first coupling recesses 46, and thus to the fixing of the guide sleeve. However, retracting the first, radially inner coupling sleeve 28from the second, smaller inner diameter to the first, larger inner diameter-leads to the disengagement of the first balls 26 radially outward and to the release of the guide sleeve 6.

[0077] According to FIG. 8, the first radially inner coupling sleeve 28 is firmly connected to the actuating sleeve 14 via the connecting pins 22, so that a movement coupling of the two components is given. In this way, it is in particular possible to detect at the position of the actuating sleeve 14 whether the inserted guide sleeve 6 is engaged or whether it is disengaged.

[0078] According to FIG. 9, the first, radially inner coupling sleeve 28 has second, radial through-recesses 54which lie outside the section guide according to FIG. 8, so that they are not visible therein which the second balls 24 (second locking means) are received in a radially movable manner.

[0079] To actuate the second balls 24, i.e. to engage the second balls 24 radially inward and to release the second balls 24 radially outward, the quick coupling 4 has the second, radially outer coupling sleeve 30, which is essentially cylindrical and which is slidably guided on the outside circumference on the first, radially inner coupling sleeve 28 in the axial direction, so that it can move over the second balls 24 in the axial direction with their different inner diameters. Due to the coaxial and overlapping arrangement and guidance of the two coupling sleeves 28 and 30 results in a very space-saving design of the quick coupling. The second, radially outer coupling sleeve 30 has at a proximal end portion a first circular cylindrical recess 58 with a first, larger inner diameter. In the distal direction, a second radial shoulder 60 is tapered radially inward. The second radial shoulder 60 tapers down to a second, smaller inner diameter of a second, distally formed, approximately circular-cylindrical recess 62 of the second, radially outer coupling sleeve 30.

[0080] A movement of the second balls 24 through the second, radially outer coupling sleeve 30 from its (proximally arranged) first, larger inner diameter to its (distally arranged) second, smaller inner diameter thus leads to the engagement of the second balls 24 radially inward into second coupling recesses 64 of the carrier sleeve 16 arranged radially on the outer circumference (cf. FIG. 8), and thus to the fixing of the first, radially inner coupling sleeve 28 to the carrier sleeve 16. However, moving the second, radially outer coupling sleeve 30 backfrom the second, smaller inner diameter to the first, larger inner diameterleads to the disengagement of the second balls 24 radially outward and to the release of the first, radially inner coupling sleeve 28 from the carrier sleeve 16.

[0081] According to FIG. 8, the connecting pins 22 engage radially inward in the slot-shaped through-recess 68 of the carrier sleeve 16. They do not grasp the through-recess 68 in order not to get into coupling with the guide sleeve. The through-recess 68 limits the axial stroke of the first radially inner coupling sleeve 28 and, due to the aforementioned movement coupling, also the axial stroke of the actuating sleeve 14. In addition, they provide anti-twisting protection of the first, radially inner coupling sleeve 28 and the actuating sleeve 14 relative to the carrier sleeve 16.

[0082] With reference to FIG. 9, it can be seen that the guide sleeve 6 has so far only been inserted loosely into the receiving space 40, namely to the extent that its own weight rests on the cone-shaped actuating elements 34 of the quick coupling 4. In order to enable this contact between the guide sleeve 6 and the actuating elements 34, the actuating elements 34 reach through the slot-shaped through-recess 66 of the carrier sleeve 16 radially inward, that is, into the receiving space 40. In this way, the through-recess 66 limits the axial stroke of the actuating elements 34 and the axial stroke of the second, radially outer coupling sleeve 30 due to the above-mentioned movement coupling. In addition, they provide anti-twisting protection of the second, radially outer coupling sleeve 30 relative to the carrier sleeve 16.

[0083] A further anti-twisting device and thus axial guidance is realized for the second, radially outer coupling sleeve 30 on the first, radially inner coupling sleeve 28, which becomes clear with reference in particular to FIG. 7. Here, it can be seen that the second, radially outer coupling sleeve 30 is divided into two partially circumferential sleeve sections 70 in a region of its second, smaller inner diameter towards its distal, second end section. Accordingly, a flange 72 of the first radially inner coupling sleeve 28 is divided into partially circumferential flange sections 74. As indicated in FIG. 7, in the assembled state, the sleeve sections 70 of the second, radially outer coupling sleeve 30 are in engagement with the gaps between the flange sections 74 of the first, radially inner coupling sleeve 28 and thus form the anti-twisting device and axial guidance.

[0084] With reference to FIG. 8, for example, the radially outwardly arranged actuating sleeve 14 has a proximally tapered external actuating cone with a slightly concavely shaped outer surface. The outer jacket surface is provided with a circumferential knurling. The conical shape and the knurling enable a good manual actuation of the actuating sleeve 14, in particular in its intended manual actuation direction from proximal to distal, or from top to bottom according to the figures, or towards the flange 18 of the carrier sleeve, or from its second fixing position B to its first receiving position A (see in particular FIGS. 4 and 5).

[0085] The interior space of the actuating sleeve 14 is divided in the axial direction into a proximal and a distal, respectively cylindrical, interior space section, wherein the division is arranged approximately at the level of the connecting pins 22 or the flange 72. The upper interior section essentially accommodates the first balls 26, the first, radially inner coupling sleeve 28, the second balls 24, the second, radially outer coupling sleeve 30 and the second spring 36. The first spring 20 is substantially accommodated in the lower interior section. The lower interior section has a radial shoulder radially inward, on which the first spring 20 is axially supported on the actuating sleeve 14.

[0086] On the other hand, the first spring 20 is axially supported on the flange 18 of the carrier sleeve 16.

[0087] The following is a description of how to engage and secure the guide sleeve 6 and how to disengage and release the guide sleeve 6.

[0088] Looking at FIG. 9, the guide sleeve 6 has, at its distal end portion, circumferentially distributed guide grooves 76 extending in the insertion direction, which are delimited proximally by a respective actuating section 78, in particular a respective front end surface of the guide groove 76. When the guide sleeve 6 is inserted into the receiving space 40, some of the actuating sections 78 come into contact with the actuating elements 34, which is shown in particular in FIG. 9. In this context, it should be noted that more guide grooves 76 are provided as actuating elements 34 in the shown design example, so that not each of the actuating sections 78 comes into contact with an actuating element 34.

[0089] A distal geometry of the guide sleeve 6 is designed by means of chamfers and rounding such that an insertion aid is formed for the two actuating elements 34 in the guide grooves 76. Since the actuating elements 34, as already explained above, are secured against rotation against the carrier sleeve by means of the through-recesses 66, the guide grooves 76 of the guide sleeve 6 slide onto the rotationally fixedly disposed actuating elements 34, i.e. the guide sleeve 6 performs a rotation about its longitudinal axis during insertion by interaction of the bevels and rounding of its distal end section until the guide grooves 76 slide onto the actuating elements 34.

[0090] In the state shown in FIGS. 8 and 9prior to pressing in the guide sleeve 6the second balls 24 are still overrun by the smaller inner diameter of the second, radially outer coupling sleeve 30 and are therefore engaged. The first, radially inner coupling sleeve is thus fixed to the carrier sleeve 16 via the second balls 24 in the position shown in FIGS. 8 and 9. Therefore, the first balls 26 are not yet engaged and the guide sleeve is disengaged.

[0091] The guide sleeve 6 is now pressed in further so that the actuating elements 34 are moved distally, or downwards in the figures. Since the second, radially outer coupling sleeve 30 is firmly connected to the actuating elements 34 and is thus coupled in a motion-coupled manner, the second, radially outer coupling sleeve 30 is thereby carried distally, i.e. downwards in FIG. 9. It is entrained against the spring force of the second spring 36. This entrainment causes the second, radially outer coupling sleeve 30 to retract, so that the second balls 24 come into contact with the second radial shoulder 60 and are thus released radially outward from the second, radially outer coupling sleeve 30.

[0092] Subsequently, the first radially inner coupling sleeve 28 is no longer fixed to the carrier sleeve 29, i.e. released. Meanwhile, the spring force of the first spring 20 acts on the first, radially inner coupling sleeve 28 and preloads it in a proximal direction of movement.

[0093] If the first coupling recesses 46 now reach the first balls 26 by further pressing into the guide sleeve 6, they can engage radially inward. The pretensioning force of the first spring 20 now shifts the first radially inner coupling sleeve 28 proximally, so that the first balls are pushed over by the smaller inner diameter of the first radially inner coupling sleeve 28. The first balls 26 are thus engaged by the first, radially inner coupling sleeve 28 into the first coupling recesses 46 of the guide sleeve 6 under constant pressure, and the latter is thus securely fixed and orientated on the carrier sleeve 16.

[0094] In this state, the actuating sleeve 14 has its second fixing position B and the coupling mechanism of the quick coupling 4 has its second engaged position (cf. FIGS. 3 and 4).

[0095] Starting from this state, the guide sleeve 6 is now being disengaged.

[0096] None of the figures shows a sectional representation of this state, so that it is briefly summarized. Viewed from the outside, the quick coupling system 2 has this state in FIGS. 3 and 4. The following state is present in the interior of the quick-release system 2 (for example, with reference to FIG. 8): the guide sleeve 6 is pressed in until it stops. The actuating elements 34 are actuated distally, as is the second, radially outer coupling sleeve 30due to the connection with the actuating elements 34. The second, radially outer coupling sleeve 30 is displaced proximally, so that the first balls 26 are passed over by the second, radially outer coupling sleeve 30 with their smaller inner diameter, and as a result the first balls 26 are engaged into the first coupling recesses 46 of the guide sleeve 6. The second balls 26 are not engaged. The first, radially inner coupling sleeve 28 is thus clamped into its position solely due to the spring force of the first spring 20.

[0097] Starting from this state, the actuating sleeve 14 is actuated distally or downwards according to the figures in order to release the guide sleeve 6 (cf. in particular the arrows in FIG. 3). As a result, the actuating sleeve 14 carries the first, radially inner coupling sleeve 28. The compressed, second spring 36 relaxes and the second, radially outer coupling sleeve 30 moves distally. As soon as the first balls 26 are released from the first, radially inner coupling sleeve 28, the second spring 36 acts and pushes the guide sleeve 6 proximally by means of the actuating elements 24 (cf. FIG. 5). The actuating sleeve 14, which is actuated distally to the stop, pulls the first radially inner coupling sleeve along until the second balls 24 again fix it to the carrier sleeve 16. Subsequently, the actuating sleeve 14 assumes its first receiving position A and the coupling mechanism its first engaged position.

[0098] FIGS. 12 to 17 each show, in a perspective full or partial view, exemplary embodiments of guide sleeves 6 of a medical quick coupling system 2 according to the disclosure.

[0099] FIG. 12 shows a guide sleeve 6 with ten first coupling recesses (and first balls 26 accommodated therein) that is modified compared to the exemplary embodiment according to the preceding figures. For illustration purposes, the actuating elements 34 are visualized interacting with the guide grooves 76.

[0100] FIG. 13 shows the guide sleeve 6 according to FIG. 2 in a perspective partial view from below. This makes it clear that the guide grooves 76 end with chamfers and rounding in the distal end section of the guide sleeve 6, which facilitates the sliding of the guide grooves 76 onto the actuating elements 34 or the sliding of the actuating elements 34 into the guide grooves 76.

[0101] FIGS. 14 and 15 each show a variant of a guide sleeve 6, with guide recesses 80 instead of guide grooves. In FIG. 14, three guide recesses 80 are provided, and in FIG. 15, four. Here, too, the design of the 76 distal end section with chamfers and rounding proves to be advantageous.

[0102] FIG. 16 shows the design of the guide sleeve 6 with several circumferentially distributed first coupling recesses 46, as already explained in the exemplary embodiment according to FIGS. 1 to 11, whereby in cooperation with the first balls 26 a rotational orientation of the guide sleeve 6 is enabled.

[0103] In contrast, FIG. 17 shows the design of the guide sleeve 6 with only one circumferential groove as the first coupling recess 46, which, in cooperation with the first balls 26, enables any rotational orientation of the guide sleeve 6.

LIST OF REFERENCE SIGNS

[0104] 1 Medical quick coupling system [0105] 2 Guide sleeve [0106] 4 Quick coupling [0107] 6 Guide sleeve [0108] 8 Fastening adapter [0109] 10 End segment of robot [0110] 12 Screw gear [0111] 14 Actuating sleeve [0112] 16 Carrier sleeve [0113] 18 Carrier flange [0114] 20 First spring [0115] 22 Connection pin [0116] 24 Second ball [0117] 26 First ball [0118] 28 First, radially inner coupling sleeve [0119] 30 Second, radially outer coupling sleeve [0120] 32 Stop sleeve [0121] 34 Actuating element [0122] 36 Second spring [0123] 38 Guide shaft [0124] 40 Receiving space [0125] 42 Head section [0126] 44 First radial through-recess [0127] 46 First coupling recess [0128] 48 First round cylindrical recess [0129] 50 First radial shoulder [0130] 52 Round cylindrical recess [0131] 54 Second, radial through-recess [0132] 58 Round cylindrical recess [0133] 60 Second radial shoulder [0134] 62 Round cylindrical recess [0135] 64 Second coupling recess [0136] 66 Slotted through-hole recess [0137] 68 Slotted through-hole recess [0138] 70 Sleeve section [0139] 72 Flange [0140] 74 Flange section [0141] 76 Guide groove [0142] 78 Operating section [0143] 80 Guide recess [0144] A First receiving position [0145] B Second fixing position