A sterile adapter, a sterile barrier, and a medical system

Abstract

The application belongs to the technical field of medical equipment, and discloses a sterile adapter, a sterile barrier and a medical system. The sterile adapter comprises a first connecting part, a coupling disc, a second connecting part and a control assembly; the coupling disc is rotationally arranged on the first connecting part; the second connecting part is sleeved outside the coupling disc, the second connecting part is provided with a first rotation limiting part, and the coupling disc is provided with a second rotation limiting part; a switching assembly is movably arranged on the first connecting part, so that the control assembly can be locked or unlocked with the second connecting part; when the control assembly is locked with the second connecting part, the first rotation limiting part cooperates with the second rotation limiting part to limit the rotation of the coupling disc; when the control assembly is unlocked with the second connecting part, the second connecting part can move along the axial direction of the coupling disc relative to the coupling disc, so that the first rotation limiting part is separated from the second rotation limiting part. The coupling disc in the sterile adapter can be locked at an initial angle, and the assembly difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a sterile adapter, a sterile barrier and a medical system. BACKGROUND

[0002] Robotic surgical systems are complex systems that include an electronic display system, a robotic arm, and a surgical instrument, wherein the robotic arm has one or more motors that can actuate one or more degrees of freedom of the surgical instrument when the surgical instrument is positioned at a surgical site within a patient's body based on commands from an operator. The robotic arm is close to the patient, and its sterile state is very important for the success of the surgery, however, the robotic arm includes multiple components (such as motors, encoders, sensors, etc.), which makes it practically impossible to sterilize using conventional sterilization methods such as steam or heat. One solution to maintain sterility is to provide a sterile barrier between the robotic arm and the surgical instrument, isolating the robotic arm (non-sterile) from the surgical instrument (sterile) while not interfering with the robotic arm actuating the surgical instrument, and can transmit simple signals such as disassembly signals between the robotic arm and the surgical instrument.

[0003] The main body of the current sterile barrier is a flexible film, and the film is connected with a sterile adapter that can be adapted with the driving unit and the surgical instrument. The sterile adapter needs to be able to transmit actuation force and signals. The sterile adapter includes a coupling disc and a plate assembly, the coupling disc is rotatably connected with the plate assembly, for accurately transmitting the actuation torque of the robotic arm to the surgical instrument, which causes the angle of the coupling disc to be indefinite when the coupling disc is installed with the robotic arm or the surgical instrument, and the coupling disc needs to be adjusted to the required angle for engagement, which increases the difficulty of assembly docking. SUMMARY

[0004] An object of the present application is to provide a sterile adapter that solves the problem of the need to adjust the angle of the coupling disc for docking in the prior art, which results in a large difficulty of assembly docking.

[0005] To achieve this object, the present application adopts the following technical solutions:

[0006] A sterile adapter, comprising:

[0007] a first connecting portion;

[0008] a coupling disc rotatably arranged on the first connecting portion;

[0009] a second connecting portion sleeved outside the coupling disc, the second connecting portion being provided with a first rotation limiting portion, and the coupling disc being provided with a second rotation limiting portion;

[0010] a control assembly movably arranged on the first connecting portion, so that the control assembly can be locked or unlocked with the second connecting portion;

[0011] When the control assembly is locked with the second connecting part, the first rotation limiting part cooperates with the second rotation limiting part to limit rotation of the coupling disc.

[0012] When the control assembly is unlocked with the second connecting part, the second connecting part can move relative to the coupling disc along an axial direction of the coupling disc to disengage the first rotation limiting part from the second rotation limiting part.

[0013] The control assembly comprises:

[0014] A sliding part provided with a first clamping part, the sliding part being slidably connected with the first connecting part in a first direction to enable the first clamping part to be clamped with or disengaged from the second connecting part.

[0015] When the first clamping part is clamped with the second connecting part, the first rotation limiting part cooperates with the second rotation limiting part.

[0016] When the first clamping part is disengaged from the second connecting part, the second connecting part can move relative to the coupling disc along an axial direction of the coupling disc to disengage the first rotation limiting part from the second rotation limiting part.

[0017] The second connecting part is provided with an assembly through hole, at least part of the sliding part is arranged in the assembly through hole, the first clamping part is a clamping groove, and the clamping groove can be clamped with an edge of the assembly through hole.

[0018] The first connecting part comprises a first horizontal plate, a second horizontal plate and a first vertical plate, the first horizontal plate and the second horizontal plate are arranged in parallel and arranged along an axial direction of the coupling disc, and the first vertical plate connects the first horizontal plate and the second horizontal plate.

[0019] The assembly through hole is located between the first horizontal plate and the second horizontal plate, and the second connecting part can abut against the second horizontal plate.

[0020] The coupling disc comprises:

[0021] A central shaft, an inner wall of the assembly through hole is provided with a first circular-arc notch matched with the central shaft.

[0022] Rotating matching parts respectively arranged at two ends of the central shaft, edges of the first horizontal plate and the second horizontal plate are respectively provided with second circular-arc notches, and sizes of the second circular-arc notches are matched with the rotating matching parts.

[0023] Coupling matching parts, each of the rotating matching parts is connected with the coupling matching part, a radial size of the coupling matching part is greater than a radial size of the rotating matching part, and two coupling matching parts abut against the first horizontal plate and the second horizontal plate respectively.

[0024] The first rotation limiting part is a notch arranged in the first circular-arc notch, and the second rotation limiting part is a protrusion arranged on the central shaft.

[0025] The control assembly further comprises:

[0026] The elastic member has one end abutting or connected with the first vertical plate and the other end abutting or connected with the sliding member, and is configured to drive the sliding member to move towards the edge of the assembly through hole.

[0027] The sliding member comprises:

[0028] The sliding body is configured with the first clamping part, and has one end slidingly connected with the second horizontal plate and the other end extending out of the first horizontal plate;

[0029] The slide rod is connected with the other end of the sliding body and slidingly contacts the side of the first horizontal plate away from the second horizontal plate.

[0030] The control assembly further comprises:

[0031] The trigger member is slidingly arranged in the guide hole of the second connecting part and connected with the slide rod, and is configured to be pressed to drive the sliding body to move in the first direction, and the slide rod is configured to move in the axial direction of the coupling disc relative to the trigger member.

[0032] The trigger member comprises:

[0033] The pressing plate is slidingly arranged in the guide hole and is matched with the shape and size of the guide hole;

[0034] The rib plate group comprises two oppositely arranged rib plates, and the slide rod is slidingly arranged between the two rib plates.

[0035] The rib plate is provided with a long hole extending in the second direction, and the slide rod is provided with a clamping protrusion slidingly arranged in the long hole, and the second direction is perpendicular to the first direction and the axial direction of the coupling disc.

[0036] The second connecting part comprises a third horizontal plate and a second vertical plate connected with each other, the assembly through hole is arranged on the third horizontal plate, and the guide hole is arranged on the second vertical plate.

[0037] The second transverse plate is provided with a sliding groove extending along the first direction, and a guide plate extending along the first direction is arranged on the side of the second transverse plate away from the first transverse plate, and the guide plate is provided with a guide groove.

[0038] One end of the sliding body is slidingly arranged in the sliding groove, and a guide rib is arranged on the sliding body and slidingly arranged in the guide groove.

[0039] The sliding member is provided with a second clamping part capable of being matched with a third clamping part on the driving device, and the sliding member is provided with a guide surface arranged obliquely relative to the axial direction of the coupling disc, and the third clamping part is capable of sliding along the guide surface and pushing the sliding member away from the second connecting part.

[0040] The number of the sliding members is two, and the two sliding members are oppositely arranged and have opposite clamping directions relative to the second connecting part.

[0041] Another object of the present application is to provide a sterile barrier, which solves the problem of difficult assembly of the sterile barrier in the prior art.

[0042] To achieve the above object, the present application adopts the following technical scheme:

[0043] The sterile barrier comprises a sterile drape and the sterile adapter, the second connecting part is connected with the sterile drape, one end of the coupling disc in the axial direction is in communication with the inner side of the sterile drape, and the other end of the coupling disc in the axial direction is in communication with the outer side of the sterile drape.

[0044] Another object of the present application is to provide a medical system, which solves the problem of difficult assembly of the sterile barrier and the driving device in the prior art.

[0045] To achieve the above object, the present application adopts the following technical scheme:

[0046] The medical system comprises a driving device, a surgical instrument and the sterile barrier, the driving device is arranged in the sterile barrier, the surgical instrument is arranged outside the sterile barrier, one end of the coupling disc is in transmission connection with the output end of the driving device, and the other end of the coupling disc is in transmission connection with the surgical instrument.

[0047] The present application has the following beneficial effects:

[0048] The sterile adapter provided by the application can lock the angle of the coupling disc through the cooperation of the first rotation limiting part and the second rotation limiting part before the sterile adapter is assembled with the driving device or the surgical instrument, thereby limiting the rotation of the coupling disc, facilitating the assembly of the coupling disc with the driving device and the surgical instrument, and reducing the assembly difficulty; the first rotation limiting part and the second rotation limiting part can be separated through the control assembly, so that the coupling disc can rotate to transmit the torque. The structure of the sterile adapter itself can release the locking of the coupling part without the need of auxiliary tools, and the assembly situation of the sterile adapter can be checked during the assembly process.

[0049] The sterile barrier and the medical system can reduce the assembly difficulty of the sterile barrier, the driving device and the surgical instrument by adopting the sterile adapter. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 is a structural schematic diagram of the medical system provided by the application;

[0051] Figure 2 is a structural schematic diagram of the sterile barrier provided by the application;

[0052] Figure 3 is a structural schematic diagram of the driving unit, the sterile adapter and the surgical instrument before assembly;

[0053] Figure 4 is an exploded view of the sterile adapter provided by the application;

[0054] Figure 5 is a top view of the sterile adapter provided by the application;

[0055] Figure 6 is a bottom view of the sterile adapter provided by the application;

[0056] Figure 7 is a structural schematic diagram of the second connecting part provided by the application;

[0057] Figure 8 is a structural schematic diagram of the coupling disc provided by the application;

[0058] Figure 9 is a structural schematic diagram of the first connecting part provided by the application Figure 1 ;

[0059] Figure 10 is a sectional view of the first connecting part, the second connecting part and the coupling disc after assembly;

[0060] Figure 11 is a structural schematic diagram of the sliding part provided by the application;

[0061] Figure 12is a structure schematic of the first connecting part provided by the application Figure 2 ;

[0062] Figure 13 is a structure schematic of the slider and the trigger after assembly provided by the application

[0063] Figure 14 is a front view of the control assembly, the first connecting part and the coupling disc after assembly provided by the application

[0064] Figure 15 is a cross-sectional view of the coupling disc when locked provided by the application Figure 5 in A-A direction

[0065] Figure 16 is a cross-sectional view of the coupling disc when locked provided by the application Figure 5 in B-B direction

[0066] Figure 17 is a cross-sectional view of the sterile adapter when the trigger is pressed provided by the application Figure 5 in A-A direction

[0067] Figure 18 is a cross-sectional view of the sterile adapter when the trigger is pressed provided by the application Figure 5 in C-C direction

[0068] Figure 19 is a cross-sectional view of the sterile adapter when the coupling disc is unlocked provided by the application

[0069] Figure 20 is a structure schematic of the driving unit provided by the application

[0070] Figure 21 is a cross-sectional view of the sterile adapter when matched with the third clamping part provided by the application

[0071] Figure 22 is a front view of the surgical instrument provided by the application

[0072] Figure 23 is a structure schematic of the sterile adapter and the surgical instrument when not assembled provided by the application

[0073] Figure 24 is a structure schematic of the sterile adapter and the surgical instrument after assembly provided by the application

[0074] in the figure:

[0075] 100, driving device; 110, mechanical arm; 120, driving unit; 1201, first coupling part; 1202, third clamping part

[0076] 200. Surgical instrument; 2001. Second coupling part; 2002. Clamp; 2003. Clamping hole;

[0077] 300. Sterile barrier; 310. Sterile drape; 320. Sterile adapter;

[0078] 1. First connecting part; 11. First horizontal plate; 111. Second arc notch; 112. Clearance hole; 12. Second horizontal plate; 121. Sliding groove; 122. Guide plate; 1221. Guide groove; 13. First vertical plate; 131. Guide post; 14. Fourth vertical plate; 141. Buckle;

[0079] 2. Second connecting part; 21. Third horizontal plate; 211. Assembly through hole; 212. First arc notch; 213. Snap-fit ​​groove; 214. Abutting part; 22. Second vertical plate; 221. Guide hole; 222. Step surface; 23. Third vertical plate;

[0080] 3. Coupling disk; 31. First coupling mating part; 32. Second coupling mating part; 33. Central shaft; 331. Protrusion; 34. Rotating mating part;

[0081] 4. Control components; 41. Sliding element; 411. Sliding body; 4111. Second locking part; 41111. Guide surface; 4112. Guide rib; 4113. Locking rib; 4114. Locking groove; 412. Slide rod; 4121. Locking protrusion; 42. Elastic element; 43. Trigger element; 431. Pressing plate; 432. Rib plate. Detailed Implementation

[0082] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0083] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0084] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature is "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature is "under", "below" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0085] In the description of the present embodiment, the terms "upper", "lower", "right", "left", and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.

[0086] The present embodiment provides a medical system which can be used for surgery. As shown in Figure 1 The medical system includes a driving device 100, a display device, and a surgical instrument 200. The driving device 100 is used to drive the end of the surgical instrument 200 to realize one or more degrees of freedom, so that the surgical instrument 200 can perform surgical operations. The display device is used to display images of the surgical site and various surgical parameters, so that medical personnel can use the medical system.

[0087] In order to avoid infection of the surgical site, the driving device 100 and the surgical instrument 200 should be in a sterile state. However, since the driving device 100 is provided with motors, encoders, sensors and other electrical elements, the driving device 100 cannot be sterilized by conventional sterilization methods (such as steam sterilization or heat sterilization). Therefore, the medical system in the present embodiment further includes a sterile barrier 300, which covers the driving device 100 outside, so as to separate the driving device 100 from the medical instrument, so as to separate the non-sterile module and the sterile module, and to ensure that the modules in contact with the surgical site are sterile modules, so as to ensure a sterile surgical environment.

[0088] Optionally, the driving device 100 includes a mechanical arm 110 and a driving unit 120, the driving unit 120 is arranged at the end of the mechanical arm 110, the driving unit 120 is driven to rotate by the mechanical arm 110, and the output end of the driving unit 120 is used to drive the surgical instrument 200 to move relative to the mechanical arm 110, so that the surgical instrument 200 can flexibly perform surgical actions.

[0089] As shown in Figure 2As shown in the figure, the sterile barrier 300 comprises a sterile drape 310 and a sterile adapter 320, the sterile adapter 320 is connected with the sterile drape 310, the sterile adapter 320 has a first adapter surface inside the sterile drape 310 and a second adapter surface outside the sterile drape 310, the first adapter surface is used to assemble with the driving device 100, and the second adapter surface is assembled with the surgical instrument 200, so that the driving device 100 drives the surgical instrument 200 to move through the sterile adapter 320 to transmit the actuation torque.

[0090] As shown in the figure, Figure 3 The opposite sides of the sterile adapter 320 can be respectively docked with the driving unit 120 and the surgical instrument 200, and the driving unit 120 and the surgical instrument 200 are connected in transmission, so as to realize normal transmission on the basis of separating the driving device 100 from the surgical instrument 200. As shown in the figure, Figure 3 and Figure 21 The driving unit 120 and the surgical instrument 200 are provided with coupling parts, for convenience, the coupling part on the driving unit 120 is a first coupling part 1201, and the coupling part on the surgical instrument 200 is a second coupling part 2001, and the first coupling part 1201 and the second coupling part 2001 are in transmission with the sterile adapter 320.

[0091] As shown in the figure, Figure 4 The sterile adapter 320 comprises a first connecting part 1, a second connecting part 2 and a coupling disc 3. The coupling disc 3 is rotationally arranged on the first connecting part 1, the second connecting part 2 is sleeved outside the coupling disc 3, and the two ends of the coupling disc 3 along the axial direction are exposed respectively. Among them, the two ends of the coupling disc 3 along the axial direction are respectively configured with coupling matching parts, so as to respectively match with the first coupling part 1201 on the driving unit 120 and the second coupling part 2001 on the surgical instrument 200, so as to realize the transmission of the actuation torque, thereby driving the surgical instrument 200 to act through the driving unit 120. For convenience, the coupling matching part on the coupling disc 3 matched with the surgical instrument 200 is a first coupling matching part 31, and the coupling matching part on the coupling disc 3 matched with the driving unit 120 is a second coupling matching part 32.

[0092] Because the coupling disc 3 needs to rotate relative to the first connecting part 1 to transmit the torque, which causes the angle of the coupling disc 3 to be indefinite when the sterile adapter 320 is installed with the driving unit 120, and the coupling disc 3 needs to be adjusted to the required angle for engagement, which increases the difficulty of assembly docking.

[0093] In order to solve the above problems, the second connecting part 2 is provided with a first rotation limiting part, and the coupling disc 3 is provided with a second rotation limiting part, and the first rotation limiting part and the second rotation limiting part cooperate to limit the rotation of the coupling disc 3 relative to the first connecting part 1, so that the angle of the coupling disc 3 before assembly is constant, and the coupling disc 3 is convenient to install with the driving unit 120 and the surgical instrument 200.

[0094] In order to ensure that the coupling disc 3 can rotate relative to the first connecting part 1 after assembly to transmit torque, the sterile adapter 320 further comprises a control assembly 4 movably arranged on the first connecting part 1, so that the control assembly 4 can be locked or unlocked with the second connecting part 2. When the control assembly 4 is locked with the second connecting part 2, the relative positions of the first connecting part 1, the second connecting part 2 and the coupling disc 3 are fixed, thereby improving the stability of the structure of the sterile adapter 320. Moreover, the first rotation limiting part cooperates with the second rotation limiting part to limit the rotation of the coupling disc 3; when the control assembly 4 is unlocked with the second connecting part 2, the second connecting part 2 can move relative to the coupling disc 3, so that the first rotation limiting part and the second rotation limiting part are disengaged, thereby enabling the coupling disc 3 to rotate.

[0095] In the embodiment, by arranging the control assembly 4, the coupling disc 3 and the first connecting part 1 can be switched between the locked state and the unlocked state, so as to fix the angle of the coupling disc 3 before the sterile adapter 320 is installed and ensure that the coupling disc 3 can rotate to transmit torque after the sterile adapter 320 is assembled.

[0096] Specifically, as shown in Figure 5 and Figure 6 , the control assembly 4 comprises a sliding piece 41. The sliding piece 41 is arranged on the first connecting part 1, and the sliding piece 41 is provided with a first clamping part and can reciprocate along a first direction X relative to the first connecting part 1, so that the first clamping part can be clamped with or disengaged from the second connecting part 2. When the first clamping part is clamped with the second connecting part 2, the first rotation limiting part cooperates with the second rotation limiting part, and the coupling disc 3 is locked at the initial angle and cannot rotate; when the first clamping part is disengaged from the second connecting part 2, the second connecting part 2 can move relative to the coupling disc 3 along the axial direction of the coupling disc 3, so that the first rotation limiting part and the second rotation limiting part are disengaged, thereby enabling the coupling disc 3 to rotate to transmit torque. In this control assembly 4, the coupling disc 3 can be rotated only by pushing the sliding piece 41 to slide along the first direction X, which is convenient to operate.

[0097] Specifically, as shown in Figure 7 , the second connecting part 2 is provided with an assembly through hole 211, and at least part of the first connecting part 1 and at least part of the sliding piece 41 are arranged in the assembly through hole 211, so that the axial both ends of the coupling disc 3 are not blocked, and the structure of the sterile adapter 320 is compact and small in size.

[0098] In order to facilitate the clamping of the sliding piece 41 with the second connecting part 2, the first clamping part is a clamping groove 4114 which can be clamped with the edge of the assembly through hole 211. The clamping groove 4114 and the edge of the assembly through hole 211 are clamped to fix the second connecting part 2 and the sliding piece 41, which is simple in structure and enables the sliding piece 41 to be clamped with and separated from the second connecting part 2 only by reciprocating movement along the first direction, which is simple to operate.

[0099] To improve the fixing effect of the sliding member 41 and the second connecting part 2, two sliding members 41 are provided, at least part of the structure of the two sliding members 41 is located in the assembly through hole 211, the two sliding members 41 are oppositely arranged, and the clamping directions of the two sliding members 41 and the second connecting part 2 are opposite to each other. After the two sliding members 41 move in the positive direction and the reverse direction of the first direction X, the two sliding members 41 can be clamped with the two side edges of the assembly through hole 211 arranged in the first direction, respectively, to improve the fixing effect of the second connecting part 2 and the sliding member 41, so that the structure of the sterile adapter 320 is more stable.

[0100] Further, the second connecting part 2 includes a third horizontal plate 21 and second vertical plates 22 oppositely arranged on both sides of the third horizontal plate 21 along the first direction. The assembly through hole 211 is arranged on the third horizontal plate 21. When the sterile adapter 320 is assembled with the surgical instrument 200, part of the surgical instrument 200 is arranged between the two second vertical plates 22, and the positioning of the surgical instrument 200 and the sterile adapter 320 along the first direction X can be conveniently realized by arranging the two second vertical plates 22, which facilitates assembly.

[0101] Further, the second connecting part 2 further includes a third vertical plate 23 connected with the second vertical plate 22 and the third horizontal plate 21, respectively. The third horizontal plate 21, the two second vertical plates 22 and the third vertical plate 23 surround a space for mounting the surgical instrument 200. The positioning of the surgical instrument 200 along the second direction Y can be facilitated by arranging the third vertical plate 23, which facilitates assembly.

[0102] Since the sterile adapter 320 needs to support the surgical instrument 200, and the first connecting part 1 is arranged in the assembly through hole 211, in order to avoid that the weight or locking force of the surgical instrument 200 is entirely applied to the first connecting part 1 and the coupling disc 3, a stepped surface 222 is arranged on the inner wall of the second vertical plate 22. The stepped surface 222 can support the surgical instrument 200, improve the carrying capacity of the sterile adapter 320, and be beneficial to improving the stability of the sterile adapter 320 after being assembled with the surgical instrument 200.

[0103] As shown in Figure 7 and Figure 8 , the first rotation limiting part is provided with a clamping groove 213, and the second rotation limiting part is a protrusion 331. The rotation of the coupling disc 3 is limited by the cooperation of the protrusion 331 and the clamping groove 213, and the structure is simple. In some embodiments, the first rotation limiting part is a protrusion 331, and the second rotation limiting part is a clamping groove 213, which can also limit the rotation of the coupling disc 3.

[0104] Further, in order to facilitate the disengagement of the clamping groove 213 from the protrusion 331, the clamping groove 213 extends along the axial direction of the coupling disc 3 and penetrates the plate surface of the third transverse plate 21. When the coupling disc 3 needs to be rotated, the second connecting part 2 only needs to move along the axial direction of the coupling disc 3 to make the protrusion 331 disengage from the clamping groove 213, thereby releasing the locking of the coupling disc 3, which is simple to operate.

[0105] Specifically, the coupling disc 3 further comprises a central shaft 33, and the first coupling part 31 and the second coupling part 32 are respectively arranged at two ends of the central shaft 33. The inner wall of the assembly through hole 211 is provided with a first circular arc notch 212 matched with the central shaft 33, and the curvature of the first circular arc notch 212 is matched with the central shaft 33 so as to be fitted with and slide along the outer wall of the central shaft 33, thereby providing a guiding function for the axial movement of the second connecting part 2. The clamping groove 213 is arranged in the first circular arc notch 212, and the protrusion 331 is arranged on the central shaft 33. Through the cooperation of the protrusion 331 and the clamping groove 213, the initial angle of the coupling disc 3 can be limited when the adapter is assembled, and a foolproof function is provided to facilitate assembly.

[0106] In the embodiment, a plurality of coupling discs 3 are arranged, each of the coupling discs 3 is matched with the second connecting part 2 through the first limiting rotation part and the second limiting rotation part to lock the initial angle of each of the coupling discs 3, and the second connecting part 2 can be matched with or disengaged from the plurality of coupling discs 3 after moving along the axial direction of the coupling disc 3, which is convenient to operate.

[0107] Specifically, the plurality of coupling discs 3 are arranged in two rows, and the two rows of coupling discs 3 are arranged in the assembly through hole 211. One row of coupling discs 3 is matched with the inner wall of one side of the assembly through hole 211, and the other row of coupling discs 3 is matched with the inner wall of the other side of the assembly through hole 211.

[0108] In order to fix the second connecting part 2 after the clamping groove 213 is disengaged from the protrusion 331, the first connecting part 1 comprises a first transverse plate 11, a second transverse plate 12 and a first vertical plate 13. The first transverse plate 11 and the second transverse plate 12 are arranged in parallel and arranged along the axial direction of the coupling disc 3, and the first vertical plate 13 connects the first transverse plate 11 and the second transverse plate 12. The assembly through hole 211 is located between the first transverse plate 11 and the second transverse plate 12, and the second connecting part 2 can abut against the second transverse plate 12. When the sliding member 41 is separated from the second connecting part 2, the second connecting part 2 moves along the axial direction of the coupling disc 3 towards the second transverse plate 12 to disengage the clamping groove 213 from the protrusion 331, until the second connecting part 2 abuts against the second transverse plate 12, and the second connecting part 2 cannot continue to move, thereby limiting the third transverse plate 21 of the second connecting part 2 between the first transverse plate 11 and the second transverse plate 12.

[0109] Optionally, the first cross plate 11 and the second cross plate 12 have a size along the first direction X and / or the second direction Y which is larger than the size of the assembly through hole 211, so as to limit the third cross plate 21 between the first cross plate 11 and the second cross plate 12, and avoid the second connecting part 2 from being separated from the first connecting part 1.

[0110] For the convenience of assembling the coupling disc 3 with the first connecting part 1, as shown in Figure 8 the coupling disc 3 further comprises a rotating fitting part 34 arranged at each end of the central shaft 33 respectively, and each rotating fitting part 34 is connected with a coupling fitting part. As shown in Figure 9 and Figure 10 the edge of the first cross plate 11 and the edge of the second cross plate 12 are provided with a second circular-arc notch 111, the size of the second circular-arc notch 111 is adapted to the rotating fitting part 34, so that the rotating fitting part 34 can rotate in the second circular-arc notch 111; the radial size of the coupling fitting part is larger than the radial size of the rotating fitting part 34. When the rotating fitting part 34 is placed in the second circular-arc notch 111, the two coupling fitting parts abut against the first cross plate 11 and the second cross plate 12 respectively, that is, the first connecting part 1 is clamped between the two coupling fitting parts, and through the cooperation of the two coupling fitting parts, the coupling disc 3 is limited from being separated from the first connecting part 1 along the axial direction. In the embodiment, by arranging the second circular-arc notch 111 on the first connecting part 1, the coupling disc 3 can be assembled from the opening position of the second circular-arc notch 111, and the installation and disassembly are convenient.

[0111] As shown in Figure 11 the sliding part 41 comprises a sliding body 411 and a sliding rod 412. One end of the sliding body 411 is in sliding connection with the second cross plate 12, and the other end extends out of the first cross plate 11 through the avoiding hole 112 on the first cross plate 11, and the sliding body 411 is provided with a first clamping part thereon, which is located between the first cross plate 11 and the second cross plate 12. The sliding rod 412 is connected with the other end of the sliding body 411, and the sliding rod 412 is in sliding contact with the side of the first cross plate 11 which is away from the second cross plate 12. In the embodiment, the sliding body 411 and the sliding rod 412 are substantially inverted L-shaped, the sliding body 411 is used for being fixed with the second cross plate 12 and clamped with the third cross plate 21, and the sliding rod 412 is in sliding cooperation with the first cross plate 11, which can guide the sliding of the sliding part 41 and facilitate the sliding of the sliding body 411 by applying force to the sliding rod 412. The sliding body 411 is provided with two clamping ribs 4113 which extend towards the corresponding second vertical plate 22, and a clamping groove 4114 is formed between the two clamping ribs 4113.

[0112] As shown in Figure 11 and Figure 12As shown, one end of the sliding body 411 is slidingly arranged in the sliding groove 121, and is provided with a guide rib 4112; the second transverse plate 12 is provided with the sliding groove 121 extending along the first direction, and is provided with a guide plate 122 away from the first transverse plate 11, the guide plate 122 extends along the first direction, and the guide plate 122 is provided with a guide slot 1221, and the guide rib 4112 is slidingly arranged in the guide slot 1221. Through the above structure, the sliding part 41 and the first connecting part 1 are slidingly connected, and the structure is simple.

[0113] In order to facilitate the cooperation of the guide rib 4112 and the guide slot 1221, the guide plate 122 is provided with a notch communicating with the guide slot 1221, and the guide rib 4112 can enter the guide slot 1221 through the notch.

[0114] As shown in Figure 7 and Figure 13 In order to facilitate the pushing of the sliding part 41, the second vertical plate 22 of the second connecting part 2 is provided with a guide hole 221, and one end of the sliding rod 412 extends into the guide hole 221. By providing the guide hole 221, the sliding rod 412 can be easily contacted after the sterile adapter 320 is assembled with the driving unit 120 or the surgical instrument 200, so as to push the sliding part 41 to slide and make the coupling disc 3 rotate relative to the first connecting part 1.

[0115] Further, the control assembly 4 further comprises a trigger 43, which is slidingly arranged in the guide hole 221 along the first direction and connected with the sliding rod 412. After pressing the trigger 43, the trigger 43 can drive the sliding body 411 to move along the first direction through the sliding rod 412.

[0116] Since the second connecting part 2 needs to move along the axial direction of the coupling disc 3 to separate the protrusion 331 from the clamping groove 213. In order to avoid the interference of the trigger 43 with the movement of the second connecting part 2, the sliding rod 412 can move along the axial direction of the coupling disc 3 relative to the trigger 43. That is, after the clamping groove 4114 on the sliding body 411 is separated from the second connecting part 2, the second connecting part 2 drives the trigger 43 to move along the axial direction of the coupling disc 3, while the sliding body 411 and the sliding rod 412 remain stationary with the first connecting part 1.

[0117] Specifically, as shown in Figure 13 The trigger 43 comprises a pressing plate 431 and a rib plate group. The pressing plate 431 is slidingly arranged in the guide hole 221, and the pressing plate 431 is matched with the shape and size of the guide hole 221. The rib plate group comprises two rib plates 432 arranged oppositely, and the rib plates 432 extend along the axial direction of the coupling disc 3, and the sliding rod 412 is slidingly arranged between the two rib plates 432. By providing the rib plate group, the pressing plate 431 can push the sliding rod 412 to slide along the first direction X, and can move along the axial direction of the coupling disc 3 relative to the sliding rod 412, avoiding the interference with the axial movement of the second connecting part 2.

[0118] Further, the rib plate 432 is provided with a long hole extending along the second direction Y, and the slide rod 412 is provided with a clamping protrusion 4121 which is slidingly arranged in the long hole, and the second direction Y is perpendicular to the first direction X and the axial direction of the coupling disc 3. Through the cooperation of the clamping protrusion 4121 and the long hole, the slide rod 412 can be prevented from sliding out of the rib plate group, and the sliding of the slide rod 412 and the pressing plate 431 can be guided.

[0119] Further, as shown in Figure 14 , the control assembly 4 further comprises an elastic member 42, one end of the elastic member 42 is in abutment or connected with the first vertical plate 13, and the other end is in abutment or connected with the sliding member 41, and the elastic member 42 is used to drive the sliding member 41 to move towards the edge of the assembly through hole 211. Optionally, the elastic member 42 can be a spring.

[0120] Further, the first vertical plate 13 is provided with a guide column 131, and the spring is sleeved outside the guide column 131 to avoid bending of the spring.

[0121] As shown in Figure 15 and Figure 16 , when the trigger member 43 is not subjected to external force, the spring drives the sliding member 41 to move towards the corresponding side of the second vertical plate 22, so that the clamping groove 4114 on the sliding member 41 is clamped with the third horizontal plate 21, the first connecting part 1 and the second connecting part 2 are fixed through the sliding member 41, and the protrusion 331 is clamped in the clamping groove 213, and the coupling disc 3 cannot rotate relative to the first connecting part 1.

[0122] When the trigger member 43 is pressed, the trigger member 43 pushes the sliding body 411 along the first direction X through the slide rod 412, as shown in Figure 17 , the clamping groove 4114 is disengaged from the third horizontal plate 21 of the second connecting part 2. As shown in Figure 18 , the second connecting part 2 is unlocked with the sliding member 41, and the second connecting part 2 can move along the axial direction of the coupling disc 3 (i.e. the Z direction), until the abutment portion 214 on the third horizontal plate 21 abuts against the second horizontal plate 12, to limit the second connecting part 2 to continue to move. At this time, as shown in Figure 19 , the protrusion 331 on the center shaft 33 will be staggered up and down with the clamping groove 213 on the third horizontal plate 21, so that the coupling disc 3 can rotate relative to the first connecting part 1.

[0123] In this embodiment, the locking state of the coupling disc 3 and the first connecting part 1 can be released by pressing the sliding piece 41, so that the sterile adapter 320 can be assembled with the surgical instrument 200 and / or the driving unit 120 first, and then the locking of the coupling disc 3 is released. In this way, the unlocking of the coupling disc 3 does not need to use auxiliary tools, and the components in the sterile adapter 320 can be conveniently checked during assembly to check whether the assembly is correct, and in the case of accidental assembly error, it can be adjusted by itself.

[0124] Further, as shown in Figure 11 and Figure 20 , the sliding piece 41 is provided with a second clamping part 4111, which can cooperate with the third clamping part 1202 on the driving device 100. The sliding piece 41 is provided with a guide surface 41111, which is inclined along the clamping direction of the first clamping part and the second connecting part 2 along the arrangement direction of the second transverse plate 12 and the first transverse plate 11. Specifically, the driving unit 120 is provided with two third clamping parts 1202, each of which corresponds to the second clamping part 4111 on the sliding piece 41.

[0125] When the sterile adapter 320 is assembled with the driving unit 120, as shown in Figure 21 , the two third clamping parts 1202 will respectively abut against the guide surface 41111 on the corresponding second clamping part 4111. As the distance between the sterile adapter 320 and the driving unit 120 along the axis of the coupling disc 3 decreases, the second clamping part 4111 will slide against the guide surface 41111 and push the corresponding sliding piece 41 to slide against the elastic force of the spring, so that the distance between the two sliding pieces 41 in the first direction is gradually reduced. Until the two second clamping parts 4111 are located between the two third clamping parts 1202 and are respectively clamped with the corresponding third clamping part 1202. When the third clamping part 1202 is clamped with the second clamping part 4111, the clamping groove 4114 on the sliding piece 41 is separated from the third transverse plate 21, so that the second connecting part 2 can move along the axis of the coupling disc 3 to separate the protrusion 331 and the clamping groove 213.

[0126] In this embodiment, the third clamping part 1202 is provided with a clamping hole matched with the second clamping part 4111, so as to be clamped and fixed with the second clamping part 4111.

[0127] To facilitate smooth engagement between the coupling disk 3 and the first coupling part 1201, and to allow medical personnel to easily understand the current rotation angle of the coupling disk 3, the second coupling engagement part 32 is a non-rotational structure to prevent relative rotation between the second coupling engagement part 32 and the first coupling part 1201. Furthermore, the outer contour shapes of at least two opposite sides of the second coupling engagement part 32 are different to form a foolproof structure, and the shape and size of the first coupling part 1201 are adapted to the second coupling engagement part 32. By forming a foolproof structure, on the one hand, it facilitates the docking of the coupling disk 3 with the first coupling part 1201, and on the other hand, it allows medical personnel to easily distinguish the rotation angle of the second coupling engagement part 32.

[0128] In this embodiment, the second coupling part 32 is a recessed structure, and correspondingly, the first coupling part 1201 is a protruding structure, so as to realize the coupling of the coupling disk 3 and the driving unit 120.

[0129] In some embodiments, the second coupling engagement portion 32 can be a protruding structure, or the second coupling engagement portion 32 can be a combination of a recessed and a protruding structure. Correspondingly, the first coupling portion 1201 can be a recessed structure, or a combination of a protruding structure and a recessed structure, which can achieve the coupling engagement between the coupling disk 3 and the driving unit 120.

[0130] Similarly, the first coupling mating part 31 is a non-rotational structure, and the shape and size of the second coupling part 2001 are adapted to the first coupling mating part 31. The mating structure of the first coupling mating part 31 and the second coupling part 2001 can be the same as the mating structure of the second coupling mating part 32 and the first coupling part 1201, which will not be described in detail here.

[0131] To prevent the coupling disc 3 from detaching from the second coupling part 2001, the surgical instrument 200 is detachably connected to the first connecting part 1 and the second connecting part 2, respectively, to improve assembly stability. In this embodiment, the surgical instrument 200 is snapped into the first connecting part 1 and the second connecting part 2, respectively, for easy assembly and disassembly.

[0132] like Figure 22 As shown, the surgical instrument 200 is equipped with a latch 2002, which can engage with the third horizontal plate 21 of the second connecting part 2. Figure 23 As shown, the surgical instrument 200 is slidably inserted between the two second vertical plates 22 from the side of the third horizontal plate 21 where the third vertical plate 23 is not located. When slid to... Figure 24 In the indicated state, the jaw 2002 engages with the end of the third horizontal plate 21. This structure allows the surgical instrument 200 to be slidably mounted with the sterile adapter 320, making installation more convenient.

[0133] like Figure 23 and Figure 24As shown, the surgical instrument 200 is further provided with a clamping hole 2003, the first connecting part 1 comprises a fourth vertical plate 14 connected with the first horizontal plate 11, and the fourth vertical plate 14 is provided with a clasp 141. When the surgical instrument 200 is assembled with the sterile adapter 320, the fourth vertical plate 14 abuts against the surgical instrument 200 to limit the further sliding of the surgical instrument 200, and meanwhile the clasp 141 is clamped into the clamping hole 2003 to further fix the surgical instrument 200 and the sterile adapter 320.

[0134] In some embodiments, the clamping hole 2003 can be arranged on the fourth vertical plate 14, and correspondingly, the clasp 141 is arranged on the surgical instrument 200.

[0135] When the surgical instrument 200 is assembled with the sterile adapter 320, the surgical instrument 200 abuts against the step surface 222 and exerts pressure on the step surface 222, so that the abutting part 214 on the second connecting part 2 abuts against the second horizontal plate 12, and through the cooperation of the second horizontal plate 12 and the surgical instrument 200, the axial limiting of the second connecting part 2 along the coupling disc 3 can be realized.

[0136] Obviously, the above embodiments of the present application are merely exemplary and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the scope of the present application. Here, it is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A sterile adapter, characterized in that, The utility model relates to a surgical instrument coupling device, including: a first connecting part (1); a coupling disc (3) is rotationally arranged on the first connecting part (1), and the axial two ends of the coupling disc (3) are exposed and are constructed with coupling cooperation parts, and the coupling cooperation parts of the two ends are used for cooperating with the first coupling part (1201) on the driving unit (120) and the second coupling part (2001) on the surgical instrument (200) respectively; a second connecting part (2) is sleeved outside the coupling disc (3), and the second connecting part (2) is provided with a first rotation limiting part, and the coupling disc (3) is provided with a second rotation limiting part; a control assembly (4) is movably arranged on the first connecting part (1), so that the control assembly (4) can be locked or unlocked with the second connecting part (2); when the control assembly (4) is locked with the second connecting part (2), the first rotation limiting part cooperates with the second rotation limiting part to limit the rotation of the coupling disc (3), and the coupling disc (3) is locked at an initial angle; when the control assembly (4) is unlocked with the second connecting part (2), the second connecting part (2) can move along the axial direction of the coupling disc (3) relative to the coupling disc (3), so that the first rotation limiting part is separated from the second rotation limiting part.

2. The aseptic adapter of claim 1, wherein, The control assembly (4) comprises: a sliding piece (41) is provided with a first clamping part, and the sliding piece (41) is slidably connected with the first connecting part (1) along a first direction, so that the first clamping part can be clamped or separated from the second connecting part (2); when the first clamping part is clamped with the second connecting part (2), the first rotation limiting part cooperates with the second rotation limiting part; when the first clamping part is separated from the second connecting part (2), the second connecting part (2) can move along the axial direction of the coupling disc (3) relative to the coupling disc (3), so that the first rotation limiting part is separated from the second rotation limiting part.

3. The aseptic adapter of claim 2, wherein, An assembly through hole (211) is arranged on the second connecting part (2), and at least part of the sliding piece (41) is arranged in the assembly through hole (211), the first clamping part is a clamping groove (4114), and the clamping groove (4114) can be clamped with the edge of the assembly through hole (211).

4. The aseptic adapter of claim 3, wherein, The first connecting part (1) comprises a first horizontal plate (11), a second horizontal plate (12) and a first vertical plate (13), the first horizontal plate (11) and the second horizontal plate (12) are arranged in parallel and arranged along the axial direction of the coupling disc (3), and the first vertical plate (13) connects the first horizontal plate (11) and the second horizontal plate (12); The assembly through hole (211) is located between the first horizontal plate (11) and the second horizontal plate (12), and the second connecting part (2) can abut against the second horizontal plate (12).

5. The aseptic adapter of claim 4, wherein, The coupling disc (3) comprises: a center shaft (33), and the inner wall of the assembly through hole (211) is provided with a first circular-arc notch (212) matched with the center shaft (33); Rotary matching parts (34) are arranged at both ends of the central shaft (33), and the edges of the first transverse plate (11) and the second transverse plate (12) are provided with second circular-arc notches (111) matching the rotary matching parts (34) in size; Coupling matching parts are connected to the rotary matching parts (34), and the radial dimension of the coupling matching parts is larger than that of the rotary matching parts (34), and the two coupling matching parts are in abutment with the first transverse plate (11) and the second transverse plate (12) respectively.

6. The aseptic adapter of claim 5, wherein, The first rotation-limiting part is a notch arranged in the first circular-arc notch (212), and the second rotation-limiting part is a protrusion (331) arranged on the central shaft (33).

7. The aseptic adapter of claim 4, wherein, The control assembly (4) further comprises: An elastic member (42) is in abutment or connected with one end of the first vertical plate (13) and the other end of the sliding member (41), and the elastic member (42) is used to drive the sliding member (41) to move towards the edge of the assembly through hole (211).

8. The aseptic adapter of claim 4, wherein, The sliding member (41) comprises: A sliding body (411) is slidingly connected with one end of the second transverse plate (12) and the other end of the first transverse plate (11), and the first clamping part is arranged on the sliding body (411); A slide rod (412) is connected with the other end of the sliding body (411), and the slide rod (412) is in sliding contact with the side of the first transverse plate (11) away from the second transverse plate (12).

9. The aseptic adapter of claim 8, wherein, The control assembly (4) further comprises: A trigger member (43) is arranged on the second connecting part (2) and connected with the slide rod (412), and the trigger member (43) is slidingly arranged in the guide hole (221) in a first direction, the trigger member (43) is connected with the slide rod (412), and the trigger member (43) is configured to be pressed to drive the sliding body (411) to move in the first direction, and the slide rod (412) can move in the axial direction of the coupling disc (3) relative to the trigger member (43).

10. The aseptic adapter of claim 9, wherein, The trigger member (43) comprises: A pressing plate (431) is slidingly arranged in the guide hole (221), and the pressing plate (431) is matched with the shape and size of the guide hole (221); A rib plate group comprises two rib plates (432) arranged oppositely, the rib plates (432) extend in the axial direction of the coupling disc (3), and the slide rod (412) is slidingly arranged between the two rib plates (432).

11. The aseptic adapter of claim 10, wherein, The rib plate (432) is provided with a long-hole extending in a second direction, the slide rod (412) is provided with a clamping convexity (4121) slidingly arranged in the long-hole, and the second direction is perpendicular to the first direction and the axial direction of the coupling disc (3) respectively.

12. The aseptic adapter of claim 9, wherein, The second connecting part (2) comprises a third horizontal plate (21) and a second vertical plate (22) connected together, the assembly through hole (211) is arranged on the third horizontal plate (21), and the guide hole (221) is arranged on the second vertical plate (22).

13. The aseptic adapter of claim 8, wherein, The second horizontal plate (12) is provided with a sliding groove (121) extending along the first direction, and the second horizontal plate (12) is provided with a guide plate (122) away from the first horizontal plate (11) on one side, the guide plate (122) extends along the first direction, and the guide plate (122) is provided with a guide groove (1221). One end of the sliding body (411) is slidably arranged in the sliding groove (121), and the guide rib (4112) is arranged on the sliding body (411).

14. The sterile adapter of claim 2, wherein, The sliding member (41) is provided with a second clamping portion (4111), the second clamping portion (4111) can cooperate with the third clamping portion (1202) on the driving device (100), the sliding member (41) is provided with a guide surface (41111), the guide surface (41111) is arranged obliquely relative to the axial direction of the coupling disc (3), the third clamping portion (1202) can slide along the guide surface (41111) and push the sliding member (41) to separate from the second connecting part (2).

15. The sterile adapter of claim 2, wherein, The number of the sliding members (41) is two, the two sliding members (41) are oppositely arranged, and the clamping directions of the two sliding members (41) and the second connecting part (2) are opposite to each other.

16. A sterile barrier, characterized in that The sterile adapter comprises a sterile drape (310) and the sterile adapter according to any one of claims 1-15, the second connecting part (2) is connected with the sterile drape (310), one end of the coupling disc (3) in the axial direction communicates with the inside of the sterile drape (310), and the other end of the coupling disc (3) in the axial direction communicates with the outside of the sterile drape (310).

17. A medical system, characterized by The sterile barrier comprises a driving device (100), a surgical instrument (200) and the sterile barrier according to claim 16, the driving device (100) is arranged in the sterile barrier, the surgical instrument (200) is arranged outside the sterile barrier, one end of the coupling disc (3) is in transmission connection with the output end of the driving device (100), and the other end of the coupling disc (3) is in transmission connection with the surgical instrument (200).

Images