Lining installer

Abstract

The embodiment of the utility model discloses a lining installer. The lining installer comprises a suction cup assembly and a handle assembly, the suction cup assembly is provided with an adsorption end and an insertion end which are oppositely arranged, a first cavity is formed in the suction cup assembly, the suction cup assembly comprises a channel communicated with the first cavity, the channel forms a first opening in the outer surface of the suction cup assembly, and the suction cup assembly comprises a suction cup located at the adsorption end; the handle assembly comprises a connecting piece and a movable piece, the connecting piece comprises a guide section inserted into the first cavity from the insertion end, the outer surface of the guide section inclines in the direction away from the axis of the first cavity in the first direction, and the movable piece can move between a closing position and an opening position relative to the connecting piece. According to the lining installer, the guide section in the inclined state is arranged on the connecting piece, so that the connecting piece is more easily inserted into the suction cup assembly and pulled out of the suction cup assembly, the lining installer is simpler and more convenient to assemble during use and disassemble after use, and the efficiency of the whole operation process is improved.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a liner installer. Background Art

[0002] The hip joint is the joint that connects the thigh bone of the human body to the hip bone of the pelvis. It is the joint that plays the most important role when humans walk. When the hip joint is damaged due to disease or trauma, in order to make it heal, artificial hip replacement surgery is performed to remove the lesion, eliminate pain, and restore the joint's movement and original function. Among them, the hip joint prosthesis includes the acetabular prosthesis and the femoral prosthesis. The acetabular prosthesis is provided with a liner inside. The acetabular prosthesis is fixed in the physiological acetabulum of the human hip bone, and the femoral prosthesis is fixed to the upper end of the human femur through the femoral stem.

[0003] At present, when performing hip replacement surgery, the operator will use a liner installer to remove and install the liner prosthesis. The liner installer generally includes a suction cup assembly and a handle assembly, as well as a push rod assembly installed in the handle assembly. During use, the push rod assembly can be used to push and pull the suction cup assembly to absorb the liner and install it. However, the handle assembly and the suction cup assembly in the existing liner installer are mostly connected by direct tensioning, which makes the installation of the handle assembly and the suction cup assembly difficult and time-consuming. Utility Model Content

[0004] An embodiment of the present application provides a liner installer that can solve the problem of difficulty in installing a handle assembly and a suction cup assembly in an existing liner installer.

[0005] The embodiment of the present application provides a liner installer, comprising:

[0006] A suction cup assembly, comprising an adsorption end and an insertion end arranged opposite to each other along a first direction, wherein a first cavity is formed in the suction cup assembly, and the first cavity extends along the first direction and penetrates the suction cup assembly; the suction cup assembly comprises a channel communicating with the first cavity, and the channel forms a first opening on an outer surface of the suction cup assembly, and the suction cup assembly comprises a suction cup located at the adsorption end;

[0007] A handle assembly is connected to the suction cup assembly, and the handle assembly includes a connecting member and a movable member that are connected to each other, the connecting member includes a guide section that is inserted into the first cavity from the insertion end, and the outer surface of the guide section is inclined in the first direction toward a direction away from the axis of the first cavity; the movable member can move between a closed position and an open position relative to the connecting member, and when the movable member is in the closed position, the channel is closed so that the suction cup absorbs the lining; when the movable member is in the open position, the channel is opened so that air can enter the suction cup from the first opening through the channel and separate the suction cup from the lining.

[0008] Optionally, in some embodiments, the connector further includes a snap-fit ​​section inserted into the first cavity, a snap-fit ​​groove being provided on one of the outer surface of the snap-fit ​​section and the inner surface of the suction cup assembly, and a snap-fit ​​portion being protrudingly provided at a position corresponding to the snap-fit ​​groove on the other side, the snap-fit ​​portion being used to be embedded in the snap-fit ​​groove to limit the movement of the connector relative to the suction cup assembly.

[0009] Optionally, in some embodiments, the engaging section is located on a side of the guiding section facing the adsorption end.

[0010] Optionally, in some embodiments, in a direction perpendicular to the first direction, the maximum value of the width of the locking section is greater than the minimum value of the width of the guiding section, and the maximum value of the width of the locking section is less than or equal to the maximum value of the width of the guiding section.

[0011] Optionally, in some embodiments, the inclination direction of the outer surface of the guide segment forms an angle with the axis of the first cavity, and the angle is less than or equal to 15°.

[0012] Optionally, in some embodiments, the suction cup assembly further includes a transition portion and a connecting portion sequentially connected along the first direction, the transition portion being connected to the suction cup, the connecting portion being connected to the connecting piece, the inner surface of the connecting portion, the inner surface of the transition portion and the inner surface of the suction cup enclosing the first cavity; the outer surface of the transition portion is at least partially recessed in a direction close to the first cavity to form a concave curved surface.

[0013] Optionally, in some embodiments, the radius of curvature of the concave surface is greater than or equal to 0.5 mm and less than or equal to 1 mm.

[0014] Optionally, in some embodiments, the suction cup has an adsorption surface on a side facing away from the insertion end, and the adsorption surface is recessed toward the insertion end; the thickness of the suction cup increases along the edge of the adsorption surface in a direction toward the axis of the first cavity.

[0015] Optionally, in some embodiments, the maximum thickness of the suction cup is less than or equal to 3 mm, and the minimum thickness of the suction cup is less than or equal to 1 mm.

[0016] Optionally, in some embodiments, the adsorption surface includes a first sub-adsorption surface and a second sub-adsorption surface connected in sequence along the edge of the adsorption surface in a direction toward the axis of the first cavity; in the first direction, the first sub-adsorption surface is inclined toward the direction close to the axis of the first cavity; the angle between the first sub-adsorption surface and the axis of the first cavity is smaller than the angle between the second sub-adsorption surface and the axis of the first cavity; the surface roughness of the second sub-adsorption surface is greater than the surface roughness of the first sub-adsorption surface.

[0017] Optionally, in some embodiments, a second cavity is formed in the connecting member, the second cavity extends along the first direction and passes through the connecting member, the movable member is located in the second cavity, and the movable member is slidably connected to the connecting member along the first direction so that the movable member slides between the closed position and the open position.

[0018] Optionally, in some embodiments, the connecting member also includes a connecting body, the connecting body is connected to the end of the guide section away from the suction cup, and a thread is formed on the outer surface of the end of the connecting body away from the suction cup; the handle assembly also includes a limiting member, the limiting member is sleeved on the connecting body, and is connected to the connecting body through the thread; a through hole is formed on the limiting member, the through hole passes through the limiting member along the first direction, and the movable member is inserted into the second cavity through the through hole.

[0019] Optionally, in some embodiments, the movable part includes a movable rod and a push-pull part connected in sequence along the first direction, the movable rod is inserted into the second cavity, and extends to the side of the limiting part away from the connecting body, and there is a gap between the outer surface of the movable rod and the side wall of the through hole, and the gap is less than or equal to 0.05 mm.

[0020] In the embodiment of the present application, the liner installer includes a suction cup assembly and a handle assembly. The suction cup assembly has an adsorption end and an insertion end that are relatively arranged along a first direction. A first cavity is formed in the suction cup assembly. The first cavity extends along the first direction and passes through the suction cup assembly. The suction cup assembly includes a channel that is connected to the first cavity. The channel forms a first opening on the outer surface of the suction cup assembly. The suction cup assembly includes a suction cup located at the adsorption end. The handle assembly includes a connecting piece and a movable piece that are connected to each other. The connecting piece includes a guide section that is inserted into the first cavity from the insertion end. The outer surface of the guide section is inclined in the first direction away from the axis of the first cavity. The movable piece can move between a closed position and an open position relative to the connecting piece. The present application provides an inclined guide section on the connecting piece, making it easier to insert the connecting piece into and remove it from the suction cup assembly, thereby making the assembly of the liner installer during use and the disassembly process after use simpler and more convenient, thereby helping to improve the efficiency of the entire surgical process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of a liner installer provided in an embodiment of the present application;

[0023] Figure 2 It is a schematic diagram of the exploded structure of a liner installer provided in an embodiment of the present application;

[0024] Figure 3 is a schematic cross-sectional structural diagram of a liner installer provided in an embodiment of the present application;

[0025] Figure 4 The embodiment of this application provides Figure 3 Schematic diagram of the enlarged structure of the A area in the middle;

[0026] Figure 5 is a structural schematic diagram of a suction cup assembly provided in an embodiment of the present application;

[0027] Figure 6 The embodiment of this application provides Figure 3 Schematic diagram of the enlarged structure of area B in the middle.

[0028] Description of reference numerals:

[0029] 100, liner installer; 110, suction cup assembly; 111, suction end; 112, insertion end; 113, first cavity; 114, snap-fit ​​groove; 115, suction cup; 1151, suction surface; 1151a, first sub-adsorption surface; 1151b, second sub-adsorption surface; 116, transition portion; 117, connecting portion; 118, passage; 119, first opening; 120, handle assembly; 121, connecting piece; 1211, second cavity; 1212, guide section; 1213, snap-fit ​​section; 1213a, snap-fit ​​portion; 1214, connecting body; 122, movable piece; 1221, movable rod; 1222, push-pull portion; 123, limit piece; 1231, through hole; X, first direction. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the directional words such as "upper" and "lower" used generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0031] The embodiment of the present application provides a liner installer, which is described in detail below. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments.

[0032] like Figure 1 and Figure 2 As shown, the liner installer 100 includes a suction cup assembly 110, which has a suction end 111 and an insertion end 112 arranged opposite to each other along a first direction X. The suction end 111 is used to cooperate with the liner to grasp and install the liner, and the insertion end 112 is used to connect with other structures to make the installation process more stable. Figure 5 As shown, a first cavity 113 is formed in the suction cup assembly 110, and the first cavity 113 extends along a first direction X and passes through the suction cup assembly 110. The suction cup assembly 110 includes a channel 118 connected to the first cavity 113. The channel 118 forms a first opening 119 on the outer surface of the suction cup assembly 110 to connect the channel 118 with the outside. The suction cup assembly 110 includes a suction cup 115 located at the suction end 111, and the suction cup 115 is used to adsorb the liner to install the liner.

[0033] like Figures 1 to 3As shown, the liner installer 100 also includes a handle assembly 120, which is connected to the suction cup assembly 110. The handle assembly 120 includes a connecting member 121 and a movable member 122 that are connected to each other. The connecting member 121 includes a guide segment 1212 inserted into the first cavity 113 from the insertion end 112. The outer surface of the guide segment 1212 is inclined in the first direction X in a direction away from the axis of the first cavity 113, that is, the outer surface of the guide segment 1212 tends to expand in the first direction X. When the guide section 1212 is inserted into the first cavity 113 of the suction cup assembly 110, the narrow end of the guide section 1212 first enters the first cavity 113 and expands the first cavity 113. As the insertion depth of the guide section 1212 increases, the expansion degree of the first cavity 113 increases. The guide section 1212 is set as an inclined structure, compared with a straight structure, so that the guide section 1212 can have a guiding role during the insertion process, making the assembly process of the handle assembly 120 and the suction cup assembly 110 easier.

[0034] In addition, after using the liner installer 100, the operator needs to disassemble the handle assembly 120 and the suction cup assembly 110 so that the operator can clean the handle assembly 120 and the suction cup assembly 110 respectively. The guide section 1212 is set as an inclined structure, which is easier to pull out from the first cavity 113 of the handle assembly 120 than a straight structure, thereby making the assembly of the liner installer 100 during use and the disassembly process after use simpler and more convenient, thereby helping to improve the efficiency of the entire surgical process.

[0035] The movable member 122 can move between a closed position and an open position relative to the connecting member 121. When the movable member 122 is in the closed position, the channel 118 is closed so that the suction cup 115 can absorb the inner lining; when the movable member 122 is in the open position, the channel 118 is opened so that air can enter the suction cup 115 from the first opening 119 through the channel 118 and separate the suction cup 115 from the inner lining. That is, the movable member 122 closes or opens the channel 118 by moving relative to the connecting member 121, and the channel 118 is connected to the outside, that is, the movable member 122 controls whether the external air can enter the first cavity 113 through the channel 118 during the movement.

[0036] Specifically, when the movable part 122 is in the closed position, the movable part 122 separates the channel 118 from the first cavity 113, and the outside air cannot enter the suction cup 115 through the first opening 119. When the suction cup 115 is attached to the surface of the lining, the air between the suction cup 115 and the surface of the lining is discharged by squeezing, so that the suction cup 115 can maintain a vacuum state, thereby achieving adsorption of the lining; when the lining is installed to the specified position, the movable part 122 is moved to the open position. At this time, the channel 118 is connected with the first cavity 113, and the outside air can enter the first cavity 113 through the first opening 119 via the channel 118, and then reach between the suction cup 115 and the surface of the lining, so that the vacuum state between the suction cup 115 and the lining can be broken, thereby achieving separation of the suction cup 115 and the lining, so as to remove the liner installer 100.

[0037] In the embodiment of the present application, the movable part 122 moves between the closed position and the open position relative to the connecting part 121, so that the liner installer 100 is adjusted between the vacuum state and the broken vacuum state to achieve the installation of the liner; at the same time, by providing a guide section 1212 on the connecting part 121, and setting the guide section 1212 as an inclined structure, the guide section 1212 can play a guiding role during the assembly of the liner installer 100 during use and the disassembly process after use, so as to make the assembly and disassembly process of the liner installer 100 simpler and more convenient, thereby helping to improve the efficiency of the entire surgical process.

[0038] Optional, such as Figure 4 and Figure 5 As shown, the connector 121 further includes a clamping section 1213 inserted into the first cavity 113, and one of the outer surface of the clamping section 1213 and the inner surface of the suction cup assembly 110 is provided with a clamping groove 114, and the other corresponding to the position of the clamping groove 114 is provided with a clamping portion 1213a, and the clamping portion 1213a is used to be embedded in the clamping groove 114 to limit the movement of the connector 121 relative to the suction cup assembly 110. That is, one of the inner surface of the suction cup assembly 110 and the outer surface of the clamping section 1213 is designed to be retracted, and the other is provided with a corresponding protrusion for cooperation. When the connector 121 is inserted into the suction cup assembly 110, the clamping portion 1213a will be embedded in the clamping groove 114, so that the connector 121 will not move freely relative to the suction cup assembly 110 in the first direction X, thereby preventing the connector 121 from being disengaged from the suction cup assembly 110 during the use of the liner installer 100, thereby ensuring the stability of the liner installer 100.

[0039] In some embodiments, the snap-on section 1213 is located on the side of the guide section 1212 facing the adsorption end 111, that is, the snap-on section 1213 is closer to the suction cup 115. Since the outer surface of the guide section 1212 is inclined in the first direction X, this arrangement makes it possible to minimize the size of the snap-on section 1213 in the case of guide sections 1212 of the same size, compared to setting the snap-on section 1213 in the interval where the guide section 1212 is located, or setting the snap-on section 1213 on the side of the guide section 1212 away from the adsorption end 111, thereby avoiding the overall size of the liner installer 100 being too large, thereby reducing damage to human tissue during surgery.

[0040] In other embodiments, in a direction perpendicular to the first direction X, the maximum value of the width of the clamping section 1213 is greater than the minimum value of the width of the guide section 1212, so that the clamping section 1213 protrudes from the narrowest part of the guide section 1212, thereby ensuring that the clamping portion 1213a on the clamping section 1213 can be embedded in the clamping groove 114, so as to limit the position of the connector 121 relative to the suction cup assembly 110. At the same time, in a direction perpendicular to the first direction X, the maximum value of the width of the clamping section 1213 is less than or equal to the maximum value of the width of the guide section 1212, that is, in the process of inserting the connector 121 into the first cavity 113 of the suction cup assembly 110, the guide section 1212 can play a role in opening the first cavity 113, so that the clamping section 1213 can be smoothly inserted into the position corresponding to the clamping groove 114 and clamped with the clamping groove 114, thereby making the assembly of the liner installer 100 easier and more convenient.

[0041] The inclined direction of the outer surface of the guide segment 1212 forms an angle with the axis of the first cavity 113, and the angle is less than or equal to 15°. If the angle is too large, the overall size of the guide segment 1212 will increase in the case of the same length of the guide segment 1212, and the volume of the first cavity 113 and the size of the suction cup assembly 110 will also need to be increased accordingly, resulting in the size of the liner installer 100 being too large. When the liner installer 100 is put into use, the damage to human tissue by the liner installer 100 will increase, affecting the surgical effect.

[0042] In the actual manufacturing process, the angle between the inclination direction of the outer surface of the guide section 1212 and the axis of the first cavity 113 can be set to 5°, 8°, 10°, 12° or 15°, etc. The specific value of the angle can be selected and adjusted according to actual design requirements, and there is no special restriction here.

[0043] Optional, such as Figure 5As shown, the suction cup assembly 110 further includes a transition portion 116 and a connecting portion 117 sequentially connected along the first direction X, the transition portion 116 is connected to the suction cup 115, the connecting portion 117 is connected to the connecting member 121, and the inner surface of the connecting portion 117, the inner surface of the transition portion 116 and the inner surface of the suction cup 115 are enclosed together to form a first cavity 113. That is, the suction cup 115 is used to cooperate with the liner, the connecting portion 117 is used to cooperate with the handle assembly 120, and the transition portion 116 plays a connecting role, and is used to connect the suction cup 115 and the connecting portion 117.

[0044] Among them, the outer surface of the transition part 116 is at least partially concave in the direction close to the first cavity 113 and forms a concave surface, that is, the outer surface of the transition part 116 is designed to be retracted to improve the deformation ability of the transition part 116. During the use of the liner installer 100, the suction cup 115 is used to cooperate with the liner and adsorb and install the liner. The liner itself has a certain weight, especially the metal liner, which is relatively heavy. When the suction cup 115 adsorbs the liner for transfer, under the action of the gravity of the liner, the suction cup 115 will tilt relative to the connecting part 117, thereby generating stress in the transition part 116. In the embodiment of the present application, by setting the outer surface of the transition part 116 to be at least partially concave in the direction close to the first cavity 113, when the suction cup 115 tilts relative to the connecting part 117, the transition part 116 can alleviate the stress generated when the suction cup 115 tilts by its own deformation, so as to avoid the risk of rebound or loosening of the suction cup 115 due to stress concentration, and ensure the stability of the suction cup 115 adsorbing the liner.

[0045] It should be noted that, in order to further reduce the risk of stress concentration in the transition portion 116, the concave portion of the outer surface of the transition portion 116 is set as a concave surface in the embodiment of the present application, so as to make a smooth transition between the transition portion 116 and the suction cup 115. The degree of concave curvature of the transition portion 116, that is, the radius of curvature of the concave surface, will also affect the performance of the transition portion 116. If the radius of curvature of the concave surface is too large, the degree of concave curvature of the transition portion 116 will be small, thereby affecting the deformation ability of the transition portion 116 itself, and even failing to effectively relieve stress concentration; if the radius of curvature of the concave surface is too small, the degree of concave curvature of the transition portion 116 will be large, thereby affecting the structural strength of the transition portion 116 itself.

[0046] Specifically, in the embodiment of the present application, the curvature radius of the concave surface is set to be greater than or equal to 0.5 mm and less than or equal to 1 mm, so that the transition portion 116 has sufficient structural strength while having good deformation ability, thereby ensuring the tilted use of the suction cup 115 during the use of the liner installer 100. In the actual production process, the curvature radius of the concave surface can be set to 0.5 mm, 0.8 mm or 1 mm, etc., and its specific value can be selected and adjusted according to actual design requirements, and is not particularly limited here.

[0047] Optional, such as Figure 5 As shown, the suction cup 115 has an adsorption surface 1151 on the side facing away from the insertion end 112, and the adsorption surface 1151 is recessed in the direction close to the insertion end 112, and the thickness of the suction cup 115 increases along the edge of the adsorption surface 1151 toward the axis of the first cavity 113, that is, the suction cup 115 in the embodiment of the present application is designed with variable thickness, by setting the thickness of the edge area of ​​the suction cup 115 to be smaller and the thickness of the middle area of ​​the suction cup 115 to be larger, the suction cup 115 is easily stretched open and not prone to warping during the process of adsorbing the lining, thereby helping to increase the suction force of the suction cup 115 and improve the fitting effect between the suction cup 115 and the lining.

[0048] Among them, the maximum value of the thickness of the suction cup 115 is less than or equal to 3mm, and the minimum value of the thickness of the suction cup 115 is less than or equal to 1mm, that is, the thickness of the suction cup 115 near the axis of the first cavity 113 is less than or equal to 3mm, and the thickness of the edge of the suction cup 115 is less than or equal to 1mm. If the thickness of the suction cup 115 is too large, it may be difficult to fully open the suction cup 115 during the adsorption of the lining, thereby affecting the adsorption effect between the suction cup 115 and the lining. In the actual production process, the maximum value of the thickness of the suction cup 115 can be set to 2mm, 2.5mm or 3mm, etc., and the minimum value of the thickness of the suction cup 115 can be set to 0.5mm, 0.8mm or 1mm, etc. The specific value of the thickness can be selected and adjusted according to the actual design requirements, and there is no special restriction here.

[0049] In some embodiments, the adsorption surface 1151 includes a first sub-adsorption surface 1151a and a second sub-adsorption surface 1151b which are connected in sequence along the edge of the adsorption surface 1151 in the direction toward the axis of the first cavity 113. In the first direction X, the first sub-adsorption surface 1151a is inclined in the direction close to the axis of the first cavity 113, and the angle between the first sub-adsorption surface 1151a and the axis of the first cavity 113 is smaller than the angle between the second sub-adsorption surface 1151b and the axis of the first cavity 113, that is, the first sub-adsorption surface 1151a is an inclined surface relative to the second sub-adsorption surface 1151b. When the adsorption surface 1151 of the suction cup 115 is attached to the inner surface of the lining, the first sub-adsorption surface 1151a will be stretched open, and when detached from the inner surface of the lining, the second sub-adsorption surface 1151b will detach from the inner surface of the lining before the first sub-adsorption surface 1151a.

[0050] Among them, the surface roughness of the second sub-adsorption surface 1151b is greater than the surface roughness of the first sub-adsorption surface 1151a, so as to increase the adsorption force between the second sub-adsorption surface 1151b and the lining, so that when the lining installer 100 is used at an angle, the second sub-adsorption surface 1151b will not be separated from the inner surface of the lining, causing the suction cup 115 to be separated from the lining, thereby improving the stability of the lining installer 100 when used at an angle.

[0051] Specifically, in the embodiment of the present application, the surface roughness of the first sub-adsorption surface 1151a can be set to be less than 0.8, and the surface roughness of the second sub-adsorption surface 1151b can be set to be greater than 0.8. The specific values ​​of their respective surface roughness can be selected and adjusted according to actual design requirements, and no special restrictions are made here.

[0052] Optional, such as Figure 4 As shown, a second cavity 1211 is formed in the connecting member 121, and the second cavity 1211 extends along the first direction X and penetrates the connecting member 121. The movable member 122 is located in the second cavity 1211. The movable member 122 is slidably connected to the connecting member 121 along the first direction X so that the movable member 122 slides between the closed position and the open position, that is, the movable member 122 is inserted into the second cavity 1211 of the connecting member 121 and can slide back and forth in the first direction X relative to the movable member 122.

[0053] During the process of installing the liner using the liner installer 100, the movable member 122 first slides in the opposite direction of the connecting member 121 along the first direction X, so that the movable member 122 slides from the open position to the closed position. At this time, the channel 118 is closed, and the external air cannot enter the suction cup 115 through the first opening 119 and the channel 118. Then, the suction surface 1151 of the suction cup 115 is attached to the inner surface of the liner, and the air between the suction surface 1151 of the suction cup 115 and the inner surface of the liner is squeezed out to form a vacuum suction state. Use the liner installer 100 to transfer the liner to the target position for installation; after the installation of the liner is completed, slide the movable part 122 relative to the connecting part 121 along the first direction X, so that the movable part 122 slides from the closed position to the open position. At this time, the channel 118 is opened, and the outside air can enter the suction cup 115 from the first opening 119 through the channel 118 to break the vacuum adsorption state between the suction cup 115 and the liner, thereby separating the suction cup 115 from the liner, so as to facilitate the removal of the liner installer 100, thereby completing the installation of the liner.

[0054] In some embodiments, Figure 6 As shown, the connecting member 121 also includes a connecting body 1214, which is connected to the end of the guide section 1212 away from the suction cup 115, and the outer surface of the end of the connecting body 1214 away from the suction cup 115 is formed with an external thread, and the handle assembly 120 also includes a limit member 123, which is sleeved on the connecting body 1214 and connected to the connecting body 1214 through a thread, and a through hole 1231 is formed on the limit member 123, and the through hole 1231 passes through the limit member 123 along the first direction X, and the movable member 122 is inserted into the second cavity 1211 through the through hole 1231. That is, the connecting member 121 is connected to the limiting member 123 by means of an external thread arranged on the connecting body 1214, and the movable member 122 passes through the limiting member 123 and is inserted into the second cavity 1211 of the connecting member 121. This connection method facilitates the disassembly and cleaning of the handle assembly 120, and can reduce the shaking of the movable member 122 during the disassembly and cleaning process, thereby preventing the movable member 122 from bending.

[0055] Among them, a limiting portion is convexly provided on the outer surface of the movable part 122, and the limiting portion is located in the second cavity 1211. When the movable part 122 slides along the first direction X relative to the connecting part 121, the limiting part 123 can cooperate with the limiting portion to limit the movable part 122, thereby preventing the movable part 122 from directly escaping from the second cavity 1211, thereby ensuring the structural stability of the liner installer 100.

[0056] In other embodiments, Figure 2 and Figure 6As shown, the movable member 122 includes a movable rod 1221 and a push-pull portion 1222 which are sequentially connected along a first direction X. The movable rod 1221 is inserted into the first cavity 113 and extends out from the side of the limiting member 123 away from the connecting body 1214. There is a gap between the outer surface of the movable rod 1221 and the side wall of the through hole 1231, so that the movable rod 1221 can slide relative to the connecting member 121 and the limiting member 123 in the first direction X, thereby realizing switching between the closed position and the open position.

[0057] The gap between the outer surface of the movable rod 1221 and the side wall of the through hole 1231 is less than or equal to 0.05 mm, so as to ensure that the movable rod 1221 can slide relative to the connecting member 121 and the stopper 123 in the first direction X, while preventing the gap from being too large to cause foreign matter such as blood to enter the second cavity 1211 through the gap during surgery, thereby ensuring the stable use of the liner installer 100. The specific value of the gap can be selected and adjusted according to actual design requirements, and is not particularly limited here.

[0058] The above is a detailed introduction to a liner installer provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, based on the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A liner installer, characterized in that: include: A suction cup assembly, comprising an adsorption end and an insertion end arranged opposite to each other along a first direction, wherein a first cavity is formed in the suction cup assembly, and the first cavity extends along the first direction and penetrates the suction cup assembly; the suction cup assembly comprises a channel communicating with the first cavity, and the channel forms a first opening on an outer surface of the suction cup assembly, and the suction cup assembly comprises a suction cup located at the adsorption end; A handle assembly is connected to the suction cup assembly, and the handle assembly includes a connecting member and a movable member that are connected to each other, the connecting member includes a guide section that is inserted into the first cavity from the insertion end, and the outer surface of the guide section is inclined in the first direction toward a direction away from the axis of the first cavity; the movable member can move between a closed position and an open position relative to the connecting member, and when the movable member is in the closed position, the channel is closed so that the suction cup absorbs the lining; when the movable member is in the open position, the channel is opened so that air can enter the suction cup from the first opening through the channel and separate the suction cup from the lining.

2. The liner installer according to claim 1, characterized in that: The connecting piece also includes a snap-in section inserted into the first cavity, a snap-in groove is provided on one of the outer surface of the snap-in section and the inner surface of the suction cup assembly, and a snap-in portion is protruded at a position corresponding to the snap-in groove on the other side, and the snap-in portion is used to be embedded in the snap-in groove to limit the movement of the connecting piece relative to the suction cup assembly.

3. The liner installer according to claim 2, characterized in that: The clamping section is located on a side of the guiding section facing the adsorption end.

4. The liner installer according to claim 3, characterized in that: In a direction perpendicular to the first direction, the maximum value of the width of the engaging section is greater than the minimum value of the width of the guiding section, and the maximum value of the width of the engaging section is less than or equal to the maximum value of the width of the guiding section.

5. The liner installer according to any one of claims 1 to 4, characterized in that: The inclined direction of the outer surface of the guide section forms an angle with the axis of the first cavity, and the angle is less than or equal to 15°.

6. The liner installer according to claim 1, characterized in that: The suction cup assembly also includes a transition portion and a connecting portion connected in sequence along the first direction, the transition portion is connected to the suction cup, the connecting portion is connected to the connecting piece, the inner surface of the connecting portion, the inner surface of the transition portion and the inner surface of the suction cup enclose the first cavity; the outer surface of the transition portion is at least partially recessed in a direction close to the first cavity to form a concave curved surface.

7. The liner installer according to claim 6, characterized in that: The curvature radius of the concave surface is greater than or equal to 0.5 mm and less than or equal to 1 mm.

8. The liner installer according to claim 1, characterized in that: The suction cup has an adsorption surface on a side away from the insertion end, and the adsorption surface is concave toward the insertion end; the thickness of the suction cup increases along the edge of the adsorption surface toward the axis of the first cavity.

9. The liner installer according to claim 8, characterized in that: The maximum value of the thickness of the suction cup is less than or equal to 3 mm, and the minimum value of the thickness of the suction cup is less than or equal to 1 mm.

10. The liner installer according to claim 8, characterized in that: The adsorption surface includes a first sub-adsorption surface and a second sub-adsorption surface which are connected in sequence along the edge of the adsorption surface in a direction toward the axis of the first cavity. In the first direction, the first sub-adsorption surface is inclined toward the direction close to the axis of the first cavity, and the angle between the first sub-adsorption surface and the axis of the first cavity is smaller than the angle between the second sub-adsorption surface and the axis of the first cavity; the surface roughness of the second sub-adsorption surface is greater than the surface roughness of the first sub-adsorption surface.

11. The liner installer according to claim 1, characterized in that: A second cavity is formed in the connecting member, the second cavity extends along the first direction and passes through the connecting member, the movable member is located in the second cavity, and the movable member is slidably connected to the connecting member along the first direction so that the movable member slides between the closed position and the open position.

12. The liner installer according to claim 11, characterized in that: The connecting member also includes a connecting body, which is connected to the end of the guide section away from the suction cup, and the outer surface of the end of the connecting body away from the suction cup is formed with a thread; the handle assembly also includes a limiting member, which is sleeved on the connecting body and connected to the connecting body through the thread; a through hole is formed on the limiting member, and the through hole passes through the limiting member along the first direction, and the movable member is inserted into the second cavity through the through hole.

13. The liner installer according to claim 12, characterized in that: The movable part includes a movable rod and a push-pull part connected in sequence along the first direction. The movable rod is inserted into the second cavity and extends out to the side of the limiting part away from the connecting body. There is a gap between the outer surface of the movable rod and the side wall of the through hole, and the gap is less than or equal to 0.05mm.

Images