Connecting assembly and head positioning device

Abstract

The utility model discloses a connecting assembly and a head positioning device, and belongs to the technical field of medical instruments. The connecting assembly comprises a first connecting piece, a limiting sleeve and a clamping piece. After the protruding part of the second connecting piece is assembled into the containing cavity of the first connecting piece, the limiting sleeve in the connecting assembly can move to the position where the limiting sleeve can cover the first opening relative to the first connecting piece, and after the limiting sleeve moves to the position where the limiting sleeve can cover the first opening, the limiting sleeve can move to the position where the limiting sleeve can cover the second opening. The limiting sleeve in the connecting assembly can be connected with the first connecting piece in a clamped mode through the clamping piece. In this way, it can be guaranteed that the limiting sleeve cannot easily rotate relative to the first connecting piece, the limiting sleeve can cover the first opening of the first connecting piece, the limiting sleeve can limit the protruding part located in the containing cavity, and therefore the first connecting piece and the second connecting piece are not likely to shake relative to each other.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a connection component and a head positioning device. Background Art

[0002] When performing head radiotherapy, a head positioning frame must be used to position the lesion in the patient's head.

[0003] Generally, the head positioning frame needs to be connected to the bed body through an adapter frame. After the patient lies on the bed body, the head positioning frame connected to the bed body through the adapter frame can position the patient's head, so that the treatment head can perform radiotherapy on the lesion in the patient's head.

[0004] However, for the current connection component used to connect the head positioning frame and the adapter frame, it is very difficult to stably connect the head positioning frame and the adapter frame. After the current connection component connects the head positioning frame and the adapter frame, the head positioning frame still shakes slightly relative to the adapter frame, resulting in a low positioning accuracy of the head positioning frame for the patient's head, and further resulting in a poor radiotherapy effect of the subsequent treatment head on the lesion in the patient's head. Utility Model Content

[0005] An embodiment of this application provides a positioning device and a medical device, which can solve the problem of poor radiotherapy effect of the treatment head on the lesion in the patient's head in the prior art. The technical solution is as follows:

[0006] On the one hand, a positioning device is provided, including: a first connecting piece, a limiting sleeve, and a clamping piece;

[0007] The first connecting piece has a receiving cavity and a first opening communicating with the receiving cavity;

[0008] The limiting sleeve is sleeved on the first connecting piece, and the limiting sleeve can move relative to the first connecting piece;

[0009] The clamping piece is connected to one of the first connecting piece and the limiting sleeve;

[0010] Wherein, after the limiting sleeve moves relative to the first connecting piece to a position where the limiting sleeve can cover the first opening, the clamping piece can be clamped with the other of the limiting sleeve and the first connecting piece.

[0011] Optionally, the limiting sleeve can rotate relative to the first connecting piece and can move axially along the limiting sleeve relative to the first connecting piece, so that after the limiting sleeve is displaced to a position where the limiting sleeve can cover the first opening, the clamping piece is clamped with the first connecting piece.

[0012] Optionally, the snap member is fixedly connected to the first connecting member; the limiting sleeve has a guiding groove adapted to the snap member and a clamping groove communicating with the guiding groove; in a direction perpendicular to the extending direction of the guiding groove, the clamping groove is distributed on at least one side of the guiding groove;

[0013] Wherein, after the limiting sleeve moves relative to the first connecting member to a position where the limiting sleeve can cover the first opening, the snap member is clamped with the limiting sleeve in the clamping groove.

[0014] Optionally, the limiting sleeve has a second opening adapted to the first opening, the guiding groove extends around the axis of the limiting sleeve, and the extending direction of the guiding groove is perpendicular to the axis of the limiting sleeve.

[0015] Optionally, after the limiting sleeve rotates relative to the first connecting member so that the snap member abuts against the first end of the guiding groove, the second opening communicates with the first opening;

[0016] After the limiting sleeve rotates relative to the first connecting member so that the snap member abuts against the second end of the guiding groove, a portion of the limiting sleeve opposite to the second opening covers the first opening;

[0017] Wherein, the clamping groove communicates with the second end of the guiding groove.

[0018] Optionally, the limiting sleeve includes: a limiting sleeve body sleeved on the first connecting member, and an end cover fixedly connected to the limiting sleeve body;

[0019] The limiting sleeve body has the second opening and the guiding groove, and the end cover at least covers the end face of the first connecting member;

[0020] Wherein, in a direction parallel to the axis of the limiting sleeve, the clamping groove is located on a side of the guiding groove away from the end cover.

[0021] Optionally, the extending direction of the guiding groove is parallel to the axis of the limiting sleeve.

[0022] Optionally, after the limiting sleeve moves axially relative to the first connecting member so that the snap member abuts against the first end of the guiding groove, the limiting sleeve is offset from the first opening in a direction parallel to the axis of the limiting sleeve;

[0023] After the limiting sleeve moves axially relative to the first connecting member so that the snap member abuts against the second end of the guiding groove, the limiting sleeve covers the first opening;

[0024] Wherein, the clamping slot is communicated with the second end of the guide slot.

[0025] Optionally, the limiting sleeve can rotate relative to the first connecting member, and / or the limiting sleeve can move relative to the first connecting member along the axial direction of the limiting sleeve;

[0026] One of the first connecting member and the limiting sleeve has a mounting groove, and the other of the first connecting member and the limiting sleeve has a clamping groove matched with the mounting groove;

[0027] The clamping member comprises: an elastic element fixed in the mounting groove, and a clamping member body connected to an end of the elastic element away from the bottom of the mounting groove, wherein at least a portion of the clamping member body is located outside the mounting groove;

[0028] Wherein, after the limiting sleeve moves relative to the first connecting member to a position where the limiting sleeve can cover the first opening, a portion of the clamping member body located outside the installation groove is clamped into the clamping groove.

[0029] On the other hand, a head positioning device is provided, which includes: a head positioning frame, an adapter frame and the above-mentioned connecting assembly, the adapter frame is connected to the first connecting member in the connecting assembly, and the head positioning frame has a second connecting member for connecting to the first connecting member.

[0030] The beneficial effects brought by the technical solution provided by the embodiment of the present application include at least:

[0031] A connection assembly comprises: a first connection member, a limiting sleeve and a clamping member. After the protrusion of the second connection member is assembled into the accommodating cavity of the first connection member, the limiting sleeve in the connection assembly can move relative to the first connection member to a position where the limiting sleeve can cover the first opening, and after the limiting sleeve moves to a position where the limiting sleeve can cover the first opening, the limiting sleeve in the connection assembly can be clamped with the first connection member through the clamping member. In this way, it can be ensured that the limiting sleeve will not easily rotate relative to the first connection member, and the limiting sleeve can cover the first opening of the first connection member, so that the limiting sleeve can limit the protrusion located in the accommodating cavity, thereby making it difficult for the first connection member and the second connection member to shake relative to each other. In this way, the stability of the connection between the first connection member and the second connection member can be effectively improved. When the head positioning frame and the adapter are connected through the connection assembly, it can be ensured that the head positioning frame and the adapter are not easily shaken relative to each other, thereby ensuring that the positioning accuracy of the head positioning frame on the patient's head is high, so that the effect of subsequent radiotherapy of the lesion in the patient's head is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0033] Figure 1 It is a schematic structural diagram of a connection component provided by an embodiment of the present application;

[0034] Figure 2 It is a schematic diagram of the cooperation between a first connecting member and a second connecting member provided by an embodiment of the present application;

[0035] Figure 3 It is another schematic diagram of the cooperation between a first connecting member and a second connecting member provided by an embodiment of the present application;

[0036] Figure 4 It is another schematic structural diagram of a connection component provided by an embodiment of the present application;

[0037] Figure 5 It is a schematic structural diagram of a limiting sleeve provided by an embodiment of the present application;

[0038] Figure 6 is Figure 4 A schematic diagram showing the connection component in another state;

[0039] Figure 7 It is another schematic structural diagram of a connection component provided by an embodiment of the present application;

[0040] Figure 8 is Figure 7 A schematic diagram showing the connection component in another state;

[0041] Figure 9 It is a partial structural schematic diagram of another connection component provided by an embodiment of the present application;

[0042] Figure 10 It is a schematic structural diagram of a head positioning device provided by an embodiment of the present application;

[0043] Figure 11 It is a schematic diagram of one side of an adapter frame provided by an embodiment of the present application;

[0044] Figure 12 It is a schematic diagram of one side of a head positioning frame provided by an embodiment of the present application. Specific embodiments

[0045] To make the objectives, technical solutions, and advantages of the present application clearer, the following will further describe the embodiments of the present application in detail with reference to the accompanying drawings.

[0046] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of a connection component provided by an embodiment of the present application. The connection component 100 may include: a first connection member 101, a limiting sleeve 102, and a clamping member 103.

[0047] The first connection member 101 in the connection component 100 may have a receiving cavity U and a first opening K1 communicating with the receiving cavity U.

[0048] The limiting sleeve 102 in the connection component 100 may be sleeved on the first connection member 101, and the limiting sleeve 102 is movably connected to the first connection member 101 to ensure that the limiting sleeve 102 can move relative to the first connection member 101.

[0049] The clamping member 103 in the connection component 100 may be connected to one of the first connection member 101 and the limiting sleeve 102.

[0050] Wherein, after the limiting sleeve 102 in the connection component 100 moves relative to the first connection member 101 to a position where the limiting sleeve 102 can cover the first opening K1, the clamping member 103 in the connection component 100 can be clamped with the other of the limiting sleeve 102 and the first connection member 101.

[0051] In a possible case, the clamping member 103 in the connection component 100 is connected to the first connection member 101. After the limiting sleeve 102 in the connection component 100 moves to a position where it can cover the first opening K1, the clamping member 103 in the connection component 100 can be clamped with the limiting sleeve 102. In another possible case, the clamping member 103 in the connection component 100 is connected to the limiting sleeve 102. After the limiting sleeve 102 in the connection component 100 moves to a position where it can cover the first opening K1, the clamping member 103 in the connection component 100 can be clamped with the first connection member 101. The embodiments of the present application will not elaborate on this.

[0052] In an embodiment of the present application, the connection assembly 100 is used to realize the connection of two different structures. Among them, one of the two structures can be connected to the first connector 101 in the connection assembly 100, and the other of the two structures can be provided with a second connector for cooperating with the first connector 101. After the first connector 101 is connected to the second connector, the two different structures can be connected together. In a possible implementation, the connection assembly 100 can be used in a scenario where a head positioning frame in a head positioning device is connected to an adapter. Here, the head positioning frame can be provided with a second connector, and the adapter can be connected to the first connector 101 in the connection assembly 100. In this way, after the second connector is matched and connected with the first connector 101 in the connection assembly 100, the connection between the head positioning frame and the adapter can be realized.

[0053] For examples, please refer to Figure 2 , Figure 2 1 is a schematic diagram of a first connector and a second connector provided in an embodiment of the present application. The second connector 200 may have a protrusion 201. The receiving cavity U of the first connector 101 is used to receive the protrusion 201 of the second connector 200. Here, the protrusion 201 of the second connector 200 may be assembled into the receiving cavity U through the first opening K1 of the first connector 101.

[0054] After the protrusion 201 of the second connecting member 200 is assembled into the accommodating cavity U of the first connecting member 101, the preliminary assembly of the first connecting member 101 and the second connecting member 200 can be achieved. In order to ensure the stability of the connection between the first connecting member 101 and the second connecting member 200, please refer to Figure 3 , Figure 3 This is another schematic diagram of the cooperation between the first connecting member and the second connecting member provided by the embodiment of the present application. The limiting sleeve 102 in the connecting assembly 100 can move relative to the first connecting member 101 to a position where the limiting sleeve 102 can cover the first opening K1, and after the limiting sleeve 102 moves to a position where the limiting sleeve 102 can cover the first opening K1, the limiting sleeve 102 in the connecting assembly 100 can be clamped with the first connecting member 101 through the clamping member 103. In this way, it can be ensured that the limiting sleeve 102 will no longer rotate easily relative to the first connecting member 101, and the limiting sleeve 102 can cover the first opening K1 of the first connecting member 101, so that the limiting sleeve 102 can limit the protrusion 201 located in the accommodating cavity U, thereby making it difficult for the first connecting member 101 and the second connecting member 200 to shake relative to each other. In this way, the stability of the connection between the first connecting member 101 and the second connecting member 200 can be effectively improved.

[0055] In summary, the connection component provided by the embodiment of the present application includes: a first connection member, a limiting sleeve, and a clamping member. After the protruding portion of the second connection member is assembled into the accommodating cavity of the first connection member, the limiting sleeve in the connection component can move relative to the first connection member to a position where the limiting sleeve can cover the first opening, and after the limiting sleeve moves to a position where it can cover the first opening, the limiting sleeve in the connection component can be clamped with the first connection member through the clamping member. In this way, it can be ensured that the limiting sleeve will not rotate relative to the first connection member easily, and the limiting sleeve can cover the first opening of the first connection member, so that the limiting sleeve can limit the protruding portion located in the accommodating cavity, and further, relative shaking between the first connection member and the second connection member is not likely to occur. Thus, the connection stability between the first connection member and the second connection member can be effectively improved. When the head positioning frame and the adapter are connected through the connection component, it can be ensured that relative shaking between the head positioning frame and the adapter is not likely to occur again, and further, the positioning accuracy of the head positioning frame for the patient's head can be ensured to be relatively high, so that the subsequent radiotherapy effect on the lesion in the patient's head is better.

[0056] In the embodiment of the present application, there are various ways for the limiting sleeve 102 in the connection component 100 to move relative to the first connection member 101. For example, the limiting sleeve 102 can rotate relative to the first connection member 101, can move along the axial direction of the limiting sleeve 102 relative to the second connection member 102, or can both rotate relative to the first connection member 101 and move along the axial direction of the limiting sleeve 102 relative to the second connection member 102. Here, no matter which way the limiting sleeve 102 moves relative to the first connection member 101, after the position of the limiting sleeve 102 reaches a position where it can cover the first opening K1, the limiting sleeve 102 can be clamped with the first connection member 101 through the clamping member 103.

[0057] In the present application, there are various ways for the limiting sleeve 102 to be clamped with the first connection member 101. The embodiment of the present application will take the following two possible implementation manners as examples for illustrative description:

[0058] The first possible implementation manner is as Figure 4 and Figure 5 shown. Figure 4 is a schematic structural diagram of another connection component provided by the embodiment of the present application, Figure 5 and

[0059] The limiting sleeve 102 in the connecting component 100 may have a guiding groove L for cooperating with the clamping member 103 and a clamping groove S communicating with the guiding groove L. Among them, in a direction perpendicular to the extending direction of the guiding groove L, the clamping groove S may be distributed on at least one side of the guiding groove L.

[0060] In this case, the limiting sleeve 102 needs to rotate relative to the first connecting member 101 and also move axially relative to the first connecting member 101 in the axial direction of the limiting sleeve 102 to ensure that after the limiting sleeve 102 moves relative to the first connecting member 101 to a position where the limiting sleeve 102 covers the first opening K1, the clamping member 103 is located in the clamping groove S and is clamped with the limiting sleeve 102.

[0061] Here, since the clamping member 103 can be fixedly connected to the first connecting member 101, after the clamping member 103 is located in the clamping groove S and clamped with the limiting sleeve 102, the clamping between the limiting sleeve 102 and the first connecting member 101 can be achieved, so that the limiting sleeve 102 will not move relative to the first connecting member 101 easily.

[0062] It should be noted that the extending direction of the guiding groove L provided on the limiting sleeve 102 may extend around the axis of the limiting sleeve 101 or along the axis of the limiting sleeve 101. Here, for different types of guiding grooves L provided on the limiting sleeve 102, the moving manner of the limiting sleeve 102 relative to the first connecting member 101 is also different. The embodiments of the present application will be described by taking the following two cases as examples:

[0063] The first case is as Figure 4 and Figure 5 shown. The guiding groove L provided on the limiting sleeve 102 extends around the axis of the limiting sleeve 102, and the extending direction of the guiding groove 102 is perpendicular to the axial direction of the limiting sleeve 102. That is, the guiding groove L provided on the limiting sleeve 102 is an arc-shaped strip groove extending around the axis of the limiting sleeve 102.

[0064] In this case, during the rotation of the limiting sleeve 102 around the first connecting member 101, the clamping member 103 fixedly connected to the first connecting member 101 can move relative to the limiting sleeve 102 in the guiding groove L, and the clamping member 103 will not move the limiting sleeve 102 along its axial direction. Therefore, during the movement of the clamping member 103 in the guiding groove L, the limiting sleeve 102 can only rotate relative to the first connecting member 101 and will not move relative to the first connecting member 101 along the axial direction of the limiting sleeve 102, thereby improving the stability of the rotation of the limiting sleeve 102 relative to the first connecting member 101.

[0065] In the embodiment of the present application, the extension length of the guiding groove L provided on the limiting sleeve 102 can be less than the outer perimeter of the limiting sleeve 102. In a possible implementation, the extension length of the guiding groove L provided on the limiting sleeve 102 is approximately equal to half of the outer perimeter of the limiting sleeve 102. That is, the distribution radian of the guiding groove L on the limiting sleeve 102 is approximately around 180°.

[0066] In the present application, after the clamping member 103 moves in the guiding groove L to a position communicating with the clamping groove S, since the clamping groove S is distributed on at least one side of the guiding groove L in a direction perpendicular to the extension direction of the guiding groove L, therefore, it is necessary to move the limiting sleeve 102 relative to the first connecting member 101 in the axial direction of the limiting sleeve 102 before it can be ensured that the clamping member 103 is located in the clamping groove S.

[0067] It should be noted that after the clamping member 103 is located in the clamping groove S, the clamping member 103 can be clamped with the limiting sleeve 102, so that the limiting sleeve 102 will not rotate relative to the first connecting member 101 easily, so as to ensure that the limiting sleeve 102 can stably cover and block the first opening K1 of the first connecting member 101. In this way, after the convex portion of the second connecting member is located in the accommodating cavity U, it can be ensured that the limiting sleeve 102 can more stably limit the convex portion located in the accommodating cavity U, so that the connection stability between the first connecting member 101 and the second connecting member is relatively high.

[0068] In the present application, as Figure 4 and Figure 5 shown, the limiting sleeve 102 can have a second opening K2 adapted to the first opening K1. Here, after the second opening K2 of the limiting sleeve 102 communicates with the first opening K1 of the first connecting member 101, the convex portion in the second connecting member can pass through the second opening K2 and the first opening K1 and then be installed into the accommodating cavity U of the first connecting member 101. After the accommodating cavity U of the first connecting member 101 accommodates the convex portion of the second connecting member, the limiting sleeve 102 can first rotate around the first connecting member 101 until the limiting sleeve 102 covers the first opening K1 of the first connecting member 101; then, the limiting sleeve 102 is moved relative to the first connecting member 101 in the axial direction of the limiting sleeve 102, so that the limiting member 103 fixedly connected to the first connecting member 101 can be clamped into the clamping groove S of the limiting sleeve 102. In this way, the limiting sleeve 102 will not rotate relative to the first connecting member 101 easily, so as to ensure that the connection stability between the first connecting member 101 and the second connecting member is relatively high.

[0069] In the embodiment of the present application, as Figure 4As shown, the limiting sleeve 102 in the connecting component 100 rotates relative to the first connecting piece 101. After the clamping piece 103 abuts against the first end of the guiding groove L provided on the limiting sleeve 102, the second opening K2 provided on the limiting sleeve 102 can communicate with the first opening K1 provided on the first connecting piece 101. In this case, the protruding part in the second connecting piece can be sequentially installed into the accommodating cavity U through the second opening K2 provided on the limiting sleeve 102 and the first opening K1 provided on the first connecting piece 101, so that the second connecting piece and the first connecting piece 101 can be preliminarily connected.

[0070] As Figure 6 shown, Figure 6 is Figure 4 a schematic diagram of the connecting component shown in another state. The limiting sleeve 102 in the connecting component 100 rotates relative to the first connecting piece 101. After the clamping piece 103 abuts against the second end of the guiding groove L provided on the limiting sleeve 102, the second opening K2 provided on the limiting sleeve 102 and the first opening K1 provided on the first connecting piece 101 are no longer in communication, and the part of the limiting sleeve 102 opposite to the second opening K2 can cover the first opening K1 provided on the first connecting piece 101. Therefore, the protruding part located in the accommodating cavity U can be preliminarily limited by the part of the limiting sleeve 102 opposite to the second opening K2.

[0071] Here, the clamping groove S provided on the limiting sleeve 102 can communicate with the second end of the guiding groove L. Since the clamping groove S can be distributed on at least one side of the guiding groove L in the direction perpendicular to the extending direction of the guiding groove L, after the part of the limiting sleeve 102 opposite to the second opening K2 covers the first opening K1 provided on the first connecting piece 101, that is, after the clamping piece 103 abuts against the second end of the guiding groove L provided on the limiting sleeve 102, the limiting sleeve 102 can move axially relative to the first connecting piece 101, so that the clamping piece 103 fixedly connected to the first connecting piece 101 can abut against the limiting sleeve 102 in the clamping groove S.

[0072] Optionally, as Figure 4 and Figure 5 shown, the limiting sleeve 102 in the connecting component 100 may include: a limiting sleeve body 1021 sleeved on the first connecting piece 101, and an end cover 1012 fixedly connected to the limiting sleeve body 1021. Wherein, the limiting sleeve body 1021 in the limiting sleeve 102 may have a second opening K2 and a guiding groove L, and the end cover 1022 can at least cover the end face Z of the first connecting piece 101.

[0073] Here, during the process of the clamping member 103 in the connecting component 100 moving within the guiding groove L provided on the limiting sleeve body 1021, the distance between the end cap 1022 in the limiting sleeve 102 and the end face Z of the first connecting member 101 can be relatively small. In a possible implementation manner, during the process of the clamping member 103 moving within the guiding groove L, the end cap 1022 can be in contact with the end face Z of the first connecting member 101.

[0074] Therefore, in order to ensure that after the clamping member 103 moves within the guiding groove L to a position communicating with the card slot S, the clamping member 103 can be normally clamped in the card slot S by moving the limiting sleeve 102 relative to the first connecting member 101 in the axial direction of the limiting sleeve 102, it is necessary to ensure that the card slot S is located on the side of the guiding groove L away from the end cap 1022 in the direction parallel to the axial direction of the limiting sleeve 102. In this way, after the clamping member 103 moves within the guiding groove L to a position communicating with the card slot S, during the process of the limiting sleeve 102 moving relative to the first connecting member 101 in the axial direction of the limiting sleeve 102, the distance between the end cap 1022 in the limiting sleeve 102 and the end face Z of the first connecting member 101 can be gradually enlarged / reduced until the clamping member 103 is clamped in the card slot S.

[0075] In the embodiment of the present application, as Figure 4 and Figure 5 shown, the first connecting member 101 in the connecting component 100 may further have a first through hole V1 communicating with the accommodating cavity U. Here, the first through hole V1 may be provided on the end face Z of the first connecting member 101. The end cap 1022 in the limiting sleeve 102 may have a second through hole V2 communicating with the first through hole V1.

[0076] Among them, after the protruding portion in the second connecting member is installed into the accommodating cavity U through the second opening K2 on the limiting sleeve 102 and the first opening K1 on the first connecting member 101, the rod body in the second connecting member can sequentially extend out of the accommodating cavity U through the first through hole V1 and the second through hole V2.

[0077] Exemplarily, in the first connecting member 101, the first through hole V1 may also communicate with the first opening K1; similarly, in the limiting sleeve 102, the second through hole V2 may also communicate with the second opening K2. In this way, after the protruding portion in the second connecting member is installed into the accommodating cavity U through the second opening K2 and the first opening K1, a part of the rod body in the second connecting member can also be directly distributed in the connected first through hole V1 and second through hole V2, so that other parts of the rod body in the second connecting member can directly pass through the first through hole V1 and the second through hole V2 and extend out of the accommodating cavity U.

[0078] It should be noted that after the first connecting member 101 in the connecting component 100 is connected to the second connecting member, the axis lines of the first through hole V1 and the second through hole V2 can both coincide with the center line of the limiting sleeve body 1021 in the limiting sleeve 102, and can both coincide with the axis line of the rod body in the second connecting member. In this way, during the rotation of the limiting sleeve 102 relative to the first connecting member 101, no interference problem will occur between the limiting sleeve 102 and the rod body in the second connecting member, making the rotation of the limiting sleeve 102 relative to the first connecting member 101 highly stable.

[0079] The second case is as Figure 7 shown in Figure 7 which is a schematic structural diagram of another connecting component provided by an embodiment of the present application. The extending direction of the guiding groove L provided on the limiting sleeve 102 can be parallel to the axial direction of the limiting sleeve 102. That is to say, the guiding groove L provided on the limiting sleeve 102 is a linear strip-shaped groove extending along the axial direction of the limiting sleeve 102.

[0080] In this case, during the movement of the limiting sleeve 102 relative to the first connecting member 101 in the axial direction of the limiting sleeve 102, the clamping member 103 fixedly connected to the first connecting member 101 can move relative to the limiting sleeve 102 within the guiding groove L, and the clamping member 103 will not cause the limiting sleeve 102 to rotate around the first connecting member 101. Therefore, during the movement of the clamping member 103 within the guiding groove L, the limiting sleeve 102 can only move relative to the first connecting member 101 in the axial direction of the limiting sleeve 102 and will not rotate relative to the first connecting member 101, thereby improving the stability of the limiting sleeve 102 when moving relative to the first connecting member 101 in the axial direction of the limiting sleeve 102.

[0081] In the present application, after the clamping member 103 moves within the guiding groove L to a position communicating with the clamping groove S, since the clamping groove S is distributed on at least one side of the guiding groove L in a direction perpendicular to the extending direction of the guiding groove L, it is necessary to rotate the limiting sleeve 102 relative to the first connecting member 101 in order to ensure that the clamping member 103 is located within the clamping groove S.

[0082] It should be noted that after the clamping member 103 is located within the clamping groove S, the clamping member 103 can be clamped with the limiting sleeve 102, preventing the limiting sleeve 102 from easily moving relative to the first connecting member 101 in the axial direction of the limiting sleeve 102, so as to ensure that the limiting sleeve 102 can stably cover and block the first opening K1 of the first connecting member 101. In this way, after the protruding portion of the second connecting member is located within the accommodating cavity U, it can be ensured that the limiting sleeve 102 can more stably limit the protruding portion located within the accommodating cavity U, making the connection between the first connecting member 101 and the second connecting member highly stable.

[0083] In the embodiments of the present application, as Figure 7 shown, in the connecting assembly 100, the limiting sleeve 102 moves axially relative to the first connecting member 101. After the clamping member 103 abuts against the first end of the guiding groove L provided on the limiting sleeve 102, the first opening K1 provided on the limiting sleeve 102 and the first connecting member 101 can be offset in a direction parallel to the axial direction of the limiting sleeve 102, so that the limiting sleeve 102 no longer blocks the first opening K1. In this case, the protruding portion in the second connecting member can be installed into the accommodating cavity U through the first opening K1 provided on the first connecting member 101, so that the second connecting member and the first connecting member 101 can be preliminarily connected.

[0084] As Figure 8 shown, Figure 8 is Figure 7 a schematic diagram of the connecting assembly shown in another state. In the connecting assembly 100, the limiting sleeve 102 moves axially relative to the first connecting member 101. After the clamping member 103 abuts against the second end of the guiding groove L provided on the limiting sleeve 102, a part of the limiting sleeve 102 can cover the first opening K1 provided on the first connecting member 101. For this reason, the protruding portion located in the accommodating cavity U can be preliminarily limited by the limiting sleeve 102. Exemplarily, the part of the limiting sleeve 102 where the guiding groove L is not provided can cover the first opening K1 provided on the first connecting member 101.

[0085] Here, the clamping groove S provided on the limiting sleeve 102 can communicate with the second end of the guiding groove L. Since the clamping groove S can be distributed on at least one side of the guiding groove L in a direction perpendicular to the extending direction of the guiding groove L, after a part of the limiting sleeve 102 covers the first opening K1 provided on the first connecting member 101, that is, after the clamping member 103 abuts against the second end of the guiding groove L provided on the limiting sleeve 102, the limiting sleeve 102 can rotate relative to the first connecting member 101, so that the clamping member 103 fixedly connected to the first connecting member 101 can abut against the limiting sleeve 102 in the clamping groove S.

[0086] The second possible implementation manner, as Figure 9 shown, Figure 9 is a partial structural schematic diagram of another connecting assembly provided in the embodiments of the present application. In the connecting assembly 100, one of the first connecting member 101 and the limiting sleeve 102 can have an installation groove P; the other of the first connecting member 101 and the limiting sleeve 102 can have a clamping groove S that cooperates with the installation groove P.

[0087] The engaging member 103 in the connecting component 100 may include: an elastic element 1031 and an engaging member body 1032. Among them, the elastic element 1031 may be fixed in the installation groove P, the engaging member body 1032 may be connected to one end of the elastic element 1031 departing from the bottom of the installation groove P, and at least a part of the engaging member body 1032 may be located outside the installation groove P.

[0088] In the embodiment of the present application, after the limiting sleeve 102 moves relative to the first connecting member 101 to a position where the limiting sleeve 102 can cover the first opening K1 provided on the first connecting member 101, the part of the engaging member body 1032 of the engaging member 103 located outside the installation groove P can be engaged into the engaging groove S. In this way, through the engagement between the part of the engaging member body 1032 located outside the installation groove P and the engaging groove S, the engagement between the limiting sleeve 102 and the first connecting member 101 can be realized, so as to ensure that the limiting sleeve 102 can more stably cover the first opening K1 provided on the first connecting member 101.

[0089] In this case, the limiting sleeve 102 can rotate relative to the first connecting member 101, and / or the limiting sleeve 102 can move axially relative to the first connecting member 101, so as to ensure that after the limiting sleeve 102 covers the first opening K1 provided on the first connecting member 101, the part of the engaging member body 1032 of the engaging member 103 located outside the installation groove P can be engaged into the engaging groove S.

[0090] That is to say, the limiting sleeve 102 can only rotate relative to the first connecting member 101, and after the limiting sleeve 102 covers the first opening K1, the part of the engaging member body 1032 located outside the installation groove P can be engaged into the engaging groove S; the limiting sleeve 102 can also only move axially relative to the first connecting member 101, and after the limiting sleeve 102 covers the first opening K1, the part of the engaging member body 1032 located outside the installation groove P can be engaged into the engaging groove S; the limiting sleeve 102 can also rotate relative to the first connecting member 101 and move axially relative to the first connecting member 101, so that after the limiting sleeve 102 covers the first opening K1, the part of the engaging member body 1032 located outside the installation groove P can be engaged into the engaging groove S.

[0091] It should be noted that when the limiting sleeve 102 only rotates relative to the first connecting member 101, a second opening K2 similar to that Figure 5 shown needs to be provided on the limiting sleeve 102.

[0092] In summary, the connection component provided by the embodiment of the present application includes: a first connecting piece, a limiting sleeve, and a clamping piece. After the convex part of the second connecting piece is assembled into the accommodating cavity of the first connecting piece, the limiting sleeve in the connection component can move relative to the first connecting piece to a position where the limiting sleeve can cover the first opening. And after the limiting sleeve moves to a position where it can cover the first opening, the limiting sleeve in the connection component can be clamped with the first connecting piece through the clamping piece. In this way, it can be ensured that the limiting sleeve will not rotate relative to the first connecting piece easily, and the limiting sleeve can cover the first opening of the first connecting piece, so that the limiting sleeve can limit the convex part located in the accommodating cavity, thereby making it not easy for relative shaking to occur between the first connecting piece and the second connecting piece. In this way, the connection stability between the first connecting piece and the second connecting piece can be effectively improved. When the head positioning frame and the adapter are connected through the connection component, it can be ensured that relative shaking is not likely to occur between the head positioning frame and the adapter, and thus the positioning accuracy of the head positioning frame for the patient's head can be ensured to be relatively high, making the subsequent radiotherapy effect on the lesion in the patient's head better.

[0093] The embodiment of the present application also provides a head positioning device. Please refer to Figure 10 , Figure 10 which is a schematic structural diagram of a head positioning device provided by the embodiment of the present application. The head positioning device 000 may include: a head positioning frame 300, an adapter frame 400, and a connection component 100 for connecting the head positioning frame 300 and the adapter frame 400. Here, the connection component 100 may be the connection component in the above embodiment.

[0094] Among them, the head positioning frame 300 can be used to position the patient's head. The adapter frame 400 can be connected to the head positioning frame 300, and the adapter frame 400 is used to be connected to the bed body. For this reason, the head positioning frame 300 in the head positioning device 000 can be connected to the bed body through the adapter frame 400.

[0095] To more clearly see the connection relationship between the head positioning frame 300 and the adapter frame 400. Please refer to Figure 11 and Figure 12 , Figure 11 which is a schematic diagram of one side of the adapter frame provided by the embodiment of the present application, Figure 12 which is a schematic diagram of one side of the head positioning frame provided by the embodiment of the present application. The adapter frame 400 can be connected to the first connecting piece 101 in the connection component 100. The head positioning frame 300 can have a second connecting piece 200, and the second connecting piece 200 can be connected to the first connecting piece 100. Here, the connection manner between the first connecting piece 101 and the second connecting piece 200 can refer to the corresponding content of the foregoing embodiment, which will not be elaborated here.

[0096] It should be noted that the adapter frame 400 can be connected to a plurality of first connecting members 101 in the plurality of connecting components 100, and the head positioning frame 300 can have a plurality of second connecting members 200. Here, the plurality of first connecting members 101 and the plurality of second connecting members 200 are connected in one-to-one correspondence, so that a more stable connection can be achieved between the head positioning frame 300 and the adapter frame 400.

[0097] An embodiment of the present application further provides a medical device, which can be a radiation medical device or an image capturing device such as a CT image or an MRI image. The embodiment of the present application does not make any limitation in this regard. Here, the medical device may include: a bed body and the head positioning device provided in the above embodiment. Among them, the bed body can be connected to the adapter frame in the head positioning device to ensure that the head positioning frame in the head positioning device can be connected to the bed body through the adapter frame.

[0098] In the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. The term "plurality" means two or more, unless otherwise clearly defined.

[0099] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A connection assembly, characterized in that: include: A first connecting member (101), a limiting sleeve (102) and a clamping member (103); The first connecting member (101) has a receiving cavity (U) and a first opening (K1) communicating with the receiving cavity (U); The limiting sleeve (102) is sleeved on the first connecting member (101), and the limiting sleeve (102) is capable of moving relative to the first connecting member (101); The clamping member (103) is connected to one of the first connecting member (101) and the limiting sleeve (102); Wherein, after the limiting sleeve (102) moves relative to the first connecting member (101) to a position where the limiting sleeve (102) can cover the first opening (K1), the clamping member (103) can be clamped with the other of the limiting sleeve (102) and the first connecting member (101).

2. The connection assembly according to claim 1, characterized in that: The limiting sleeve (102) is rotatable relative to the first connecting member (101), and is movable relative to the first connecting member (101) along the axial direction of the limiting sleeve (102), so that after the limiting sleeve (102) is displaced to a position where the limiting sleeve (102) can cover the first opening (K1), the limiting sleeve (102) is clamped with the first connecting member (101) through the clamping member (103).

3. The connection assembly according to claim 2, characterized in that: The clamping member (103) is fixedly connected to the first connecting member (101); the limiting sleeve (102) has a guide groove (L) matched with the clamping member (103), and a clamping groove (S) connected to the guide groove (L); in an extending direction perpendicular to the guide groove (L), the clamping groove (S) is distributed on at least one side of the guide groove (L); Wherein, after the limiting sleeve (102) moves relative to the first connecting member (101) to a position where the limiting sleeve (102) can cover the first opening (K1), the clamping member (103) is clamped with the limiting sleeve (102) in the clamping groove (S).

4. The connection assembly according to claim 3, characterized in that: The limiting sleeve (102) has a second opening (K2) adapted to the first opening (K1), the guide groove (L) extends around the axis of the limiting sleeve (102), and the extension direction of the guide groove (L) is perpendicular to the axial direction of the limiting sleeve (102).

5. The connection assembly according to claim 4, characterized in that: After the limiting sleeve (102) rotates relative to the first connecting member (101) so that the clamping member (103) abuts against the first end of the guide groove (L), the second opening (K2) is communicated with the first opening (K1); After the limiting sleeve (102) rotates relative to the first connecting member (101) so that the clamping member (103) abuts against the second end of the guide groove (L), a portion of the limiting sleeve (102) disposed opposite to the second opening (K2) covers the first opening (K1); Wherein, the clamping slot (S) is connected to the second end of the guide slot (L).

6. The connection assembly according to claim 5, characterized in that: The limiting sleeve (102) comprises: a limiting sleeve body (1021) sleeved on the first connecting member (101), and an end cover (1022) fixedly connected to the limiting sleeve body (1021); The limiting sleeve body (1021) has the second opening (K2) and the guide groove (L), and the end cover (1022) at least covers the end surface (Z) of the first connecting member (101); Wherein, in a direction parallel to the axial direction of the limiting sleeve (102), the clamping groove (S) is located on a side of the guide groove (L) facing away from the end cover (1022).

7. The connection assembly according to claim 3, characterized in that: The extending direction of the guide groove (L) is parallel to the axial direction of the limiting sleeve (102).

8. The connection assembly according to claim 7, characterized in that: After the limiting sleeve (102) moves relative to the first connecting member (101) in the axial direction of the limiting sleeve (102) so that the clamping member (103) abuts against the first end of the guide groove (L), the limiting sleeve (102) and the first opening (K1) are offset in a direction parallel to the axial direction of the limiting sleeve (102); After the limiting sleeve (102) moves relative to the first connecting member (101) in the axial direction of the limiting sleeve (102) so that the clamping member (103) abuts against the second end of the guide groove (L), the limiting sleeve (102) covers the first opening (K1); Wherein, the clamping slot (S) is connected to the second end of the guide slot (L).

9. The connection assembly according to claim 1, characterized in that: The limiting sleeve (102) is capable of rotating relative to the first connecting member (101), and / or the limiting sleeve (102) is capable of moving relative to the first connecting member (101) along the axial direction of the limiting sleeve (102); One of the first connecting member (101) and the limiting sleeve (102) has a mounting groove (P), and the other of the first connecting member (101) and the limiting sleeve (102) has a clamping groove (S) matched with the mounting groove (P); The clamping member (103) comprises: an elastic element (1031) fixed in the installation groove (P), and a clamping member body (1032) connected to an end of the elastic element (1031) away from the bottom of the installation groove (P), and at least a portion of the clamping member body (1032) is located outside the installation groove (P); After the limiting sleeve (102) moves relative to the first connecting member (101) to a position where the limiting sleeve (102) can cover the first opening (K1), a portion of the clamping member body (1032) located outside the installation groove (P) is clamped into the clamping groove (S).

10. A head positioning device, characterized in that: The head positioning device comprises: a head positioning frame, an adapter frame and a connecting assembly according to any one of claims 1 to 9, the adapter frame is connected to a first connecting member in the connecting assembly, and the head positioning frame has a second connecting member for connecting to the first connecting member.

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