Handle shell and guide sheath handle

Abstract

The utility model is suitable for the technical field of guide sheaths, and provides a handle shell and a guide sheath handle. The handle shell comprises a first sub shell and a second sub shell, a limiting boss is arranged on the butt joint side of one of the first sub-shell and the second sub-shell, a limiting groove is correspondingly formed in the butt joint side of the other one of the first sub-shell and the second sub-shell, and the limiting boss is matched with the limiting groove in a butt joint mode and used for limiting rotation of the first sub-shell relative to the second sub-shell; two fastening arms are arranged on the outer wall of the first sub-shell, fastening holes corresponding to the fastening arms are formed in the outer wall of the second sub-shell, at least part of the fastening arms can be inserted into the fastening holes, and the first sub-shell and the second sub-shell are limited to be separated. According to the handle shell, the first sub-shell and the second sub-shell are not prone to rotating and disengaging after being in butt joint, and butt joint and disassembly can be rapidly achieved.

Description

Technical Field

[0001] The present application relates to the technical field of guide sheaths, and in particular to a handle housing and a guide sheath handle. Background Art

[0002] In the technical field of guide sheaths, in order to enable the distal guide tip to be withdrawn from the sheath tube after the sheath tube is guided and the insertion portion of the endoscope enters the lesion site through the sheath tube, the handle shell of the guide sheath handle is configured as two sub-shells, and the two sub-shells are configured as a detachable docking structure. However, after the existing guide sheath handle shell is docked, the two sub-shells are prone to problems such as rotation and detachment. Utility Model Content

[0003] The purpose of this application is to provide a handle housing and a guide sheath handle to solve the above technical problems existing in the prior art, which mainly include the following contents:

[0004] A first aspect of the present application provides a handle housing, comprising: a first sub-housing and a second sub-housing;

[0005] A limiting boss is provided on the butt joint side of one of the first sub-shell and the second sub-shell, and a limiting groove is correspondingly provided on the butt joint side of the other sub-shell, and the limiting boss is butt-matched with the limiting groove to limit the rotation of the first sub-shell relative to the second sub-shell;

[0006] The outer wall of the first sub-shell is provided with two snap-on arms, and the outer wall of the second sub-shell is provided with snap-on holes corresponding to the snap-on arms, and at least part of the snap-on arms can be inserted into the snap-on holes to limit the separation of the first sub-shell from the second sub-shell.

[0007] To further implement the present application in a better manner, the following configuration structure is particularly adopted: along the extension direction of the buckle arm, the buckle arm includes a buckle section and a force application section;

[0008] At least a portion of the distal end of the buckle section can be inserted into the buckle hole and limitedly matched with the buckle hole; the proximal end of the buckle section is connected to the force applying section;

[0009] The outer wall of the first sub-shell is provided with a support column, and the connection between the buckle section and the force applying section is connected to the support column.

[0010] In order to better implement the present application, the following setting structure is particularly adopted: the width direction of the buckle arm is the second direction, and the size of the force-applying section in the second direction is greater than the size of the buckle section in the second direction.

[0011] In order to better implement the present application, the following setting structure is particularly adopted: the side of the force-applying section away from the first sub-shell is a pressing surface, and along the first direction, the pressing surface is inclined along the side close to the first sub-shell, and the first direction is the direction away from the buckle section.

[0012] In order to better implement the present application, the following configuration structure is particularly adopted: the buckle hole is located in the middle position of the second sub-shell in the width direction.

[0013] In order to better implement the present application, the following setting structure is particularly adopted: at least one of the buckling arms is staggered relative to the buckling hole.

[0014] To further implement the present application in a better manner, the following configuration structure is particularly adopted: the buckle section is provided with a buckle post which can be inserted into the buckle hole;

[0015] A first limiting surface is arranged on the hole wall of the buckle hole, and a second limiting surface corresponding to the first limiting surface is arranged on the buckle column;

[0016] And / or, the limiting surface is arranged adjacent to the proximal end of the second sub-shell.

[0017] In order to better implement the present application, the following setting structure is particularly adopted: a guide groove is provided on at least one side of the outer wall of the second sub-shell, the guide groove is connected to the buckle hole, and the guide groove extends from the proximal end to the distal end of the second sub-shell.

[0018] To further better implement the present application, the following configuration is particularly adopted: the width of the guide groove gradually increases from the distal end of the second sub-shell to the proximal end of the second sub-shell; and at least one side wall of the guide groove is tangent to the buckle hole.

[0019] A second aspect of the present application provides a guide sheath handle, comprising the above-mentioned handle housing.

[0020] Compared with the prior art, this application has at least the following technical effects:

[0021] The handle housing of the present application includes a first sub-housing and a second sub-housing. The first sub-housing and the second sub-housing are plugged in axially through a limiting protrusion and a limiting groove, limiting the rotation of the first sub-housing relative to the second sub-housing; the first sub-housing and the second sub-housing are buckled through a buckle arm and a buckle hole, limiting the axial movement of the first sub-housing relative to the second sub-housing. Through the handle housing of the present application, the first sub-housing and the second sub-housing are not easy to rotate and disengage after docking, and docking and disassembly can be achieved quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the handle housing structure in this application Figure 1 ;

[0024] Figure 2 This is the first sub-shell structure schematic diagram in this application Figure 1 ;

[0025] Figure 3 This is a schematic diagram of the second sub-shell structure in this application Figure 1 ;

[0026] Figure 4 This is a schematic diagram of the handle housing structure in this application Figure 2 ;

[0027] Figure 5 This is a schematic diagram of the handle housing structure in this application Figure 3 ;

[0028] Figure 6 This is a schematic diagram of the handle housing structure in this application Figure 4 ;

[0029] Figure 7 yes Figure 6 Enlarged view of part A in the middle;

[0030] Figure 8 This is a schematic diagram of the second sub-shell structure in this application Figure 2 ;

[0031] Fig. 9 yes Figure 8 Enlarged view of middle part B;

[0032] Fig.10 This is the first sub-shell structure schematic diagram in this application Figure 1 ;

[0033] Fig.11 yes Fig.10 Enlarged view of the middle C part;

[0034] Fig.12 This is a schematic diagram of the second sub-shell structure in this application Figure 3 .

[0035] In the figure:

[0036] 10-first sub-shell; 11-limiting boss; 12-snap-on arm; 121-snap-on section; 1211-snap-on column; 1212-second limiting surface; 122-force-applying section; 123-pressing surface; 13-support column; 14-insertion portion;

[0037] 20 - second sub-shell; 21 - limiting groove; 22 - buckle hole; 221 - first limiting surface; 23 - guide groove. DETAILED DESCRIPTION

[0038] The following description provides many different embodiments or examples for implementing different features of the present application. The components and arrangements described in the following specific examples are only used to simplify the present application and are only used as examples, not to limit the present application.

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are 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 ordinary technicians in this field without creative work are within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for which protection is claimed, but merely represents the selected embodiments of the present application.

[0040] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0041] In the present application, unless otherwise clearly specified and limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being above, above, and above a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] In addition, in the present application, "proximal" and "distal" refer to the far and near positions of the structure relative to human operation in the use environment, so as to facilitate the description of the positional relationship between components and facilitate understanding; for the same component, "proximal" and "distal" are the relative positional relationship of the component, not absolute; therefore, it should be understood from the perspective of realizing the principles of the present application, and should not deviate from the essence of the present application.

[0043] The inventors discovered during their research that in order to enable the distal guide tip to withdraw the sheath tube after completing the guidance of the sheath tube, the handle shell of the guide sheath handle is configured as two sub-shells, and the two sub-shells are configured as a detachable docking structure. However, after the handle shells of the existing guide sheath handles are docked, the two sub-shells are prone to relative rotation and detachment when subjected to external force.

[0044] In view of this, the first aspect of the present application provides a handle housing, such as Figure 1-Figure 12 As shown, it includes: a first sub-shell 10 and a second sub-shell 20. A limiting boss 11 is provided on the docking side of one of the first sub-shell 10 and the second sub-shell 20, and a limiting groove 21 is correspondingly provided on the docking side of the other sub-shell. The limiting boss 11 is docked and matched with the limiting groove 21 to limit the rotation of the first sub-shell 10 relative to the second sub-shell 20. Exemplarily, a limiting protrusion 11 is provided at the far end of the first sub-shell 10, and the limiting protrusion 11 is rectangular, square, etc. in the radial section along the first sub-shell 10. Correspondingly, the shape of the limiting groove 21 is matched with the shape of the limiting protrusion 11. After the limiting protrusion 11 is embedded in the limiting groove 21, the limiting protrusion 11 and the limiting groove 21 are tightly matched to ensure the sealing of the handle housing. After the limiting protrusion 11 of the first sub-shell 10 is inserted into the limiting groove 21 of the second sub-shell 20, the limiting protrusion 11 and the limiting groove 21 are limited and cooperated, limiting the rotation of the first sub-shell 10 relative to the second sub-shell 20, ensuring that the first sub-shell 10 and the second sub-shell 20 are firmly connected. Even if the first sub-shell 10 and the second sub-shell 20 are subjected to external force after the connection, it is not easy for them to rotate.

[0045] The outer wall of the first sub-shell 10 is provided with two snap-on arms 12, and the outer wall of the second sub-shell 20 is provided with snap-on holes 22 corresponding to the snap-on arms 12. At least part of the snap-on arms 12 can be inserted into the snap-on holes 22 to limit the separation of the first sub-shell 10 and the second sub-shell 20.

[0046] Exemplarily, the outer wall of the first sub-shell 10 is provided with two snap-on arms 12, which are respectively fixedly connected to the two side walls of the first sub-shell 10, and the two snap-on arms 12 are symmetrically arranged along the axis of the first sub-shell 10, and the two snap-on arms 12 are respectively fixedly connected to the side walls of the first sub-shell 10 through support columns 13. The outer wall of the second sub-shell 20 is provided with snap-on holes 22 corresponding to the snap-on arms 12, and the far end of the snap-on arms 12 is provided with snap-on sections 121, and the snap-on sections 121 only need to be inserted into the snap-on holes 22 of the corresponding side walls of the second sub-shell 20 to achieve the connection between the first sub-shell 10 and the second sub-shell 20, and the snap-on cooperation between the snap-on arms 12 and the snap-on holes 22 limits the first sub-shell 10 from moving relative to the second sub-shell 20 along the handle shell in the axial direction (first direction) to prevent separation and other problems.

[0047] In some optional embodiments, the handle shell can have two states through the first sub-shell 10 and the second sub-shell 20. In the first state, the first sub-shell 10 is matched with the snap-on hole 22 on the second sub-shell 20 through the snap-on arm 12, so that the first sub-shell 10 and the second sub-shell 20 are docked; in the second state, the snap-on arm 12 is disengaged from the snap-on hole 22, releasing the snap-on relationship between the snap-on arm 12 and the snap-on hole 22, so that the first sub-shell 10 can be disassembled relative to the second sub-shell 20.

[0048] In some optional embodiments, a plug-in portion 14 is provided at the distal end of the first sub-housing 10, and the proximal end of the plug-in portion 14 is connected to the limiting protrusion 11, and the plug-in portion 14 is coaxially arranged with the limiting protrusion 11. The distal end of the plug-in portion 14 exceeds the distal end of the buckle arm 12, so that the first sub-housing 10 is first connected to the second sub-housing 20 through the insertion portion 14, and then the buckle arm 12 is used to realize the buckle connection between the first sub-housing 10 and the second sub-housing 20.

[0049] Therefore, the handle housing of the present application includes a first sub-housing 10 and a second sub-housing 20, which are plugged in the axial direction through a limiting protrusion 11 and a limiting groove 21 to limit the rotation of the first sub-housing 10 relative to the second sub-housing 20; the first sub-housing 10 and the second sub-housing 20 are buckled through a buckle arm 12 and a buckle hole 22 to limit the axial movement of the first sub-housing 10 relative to the second sub-housing 20. Through the handle housing of the present application, the first sub-housing 10 and the second sub-housing 20 are not easy to rotate or disengage after docking, and docking and disassembly can be achieved quickly.

[0050] According to some optional embodiments, along the extension direction of the snap-in arm 12, the snap-in arm 12 includes a snap-in section 121 and a force-applying section 122; at least a portion of the distal end of the snap-in section 121 can be inserted into the snap-in hole 22 and limitedly engaged with the snap-in hole 22; the proximal end of the snap-in section 121 is connected to the force-applying section 122; a support column 13 is provided on the outer wall of the first sub-shell 10, and the connection between the snap-in section 121 and the force-applying section 122 is connected to the support column 13.

[0051] Exemplarily, the buckle section 121 is arranged along the axial direction of the first sub-shell 10, so that the buckle section 121 can be buckled with the buckle hole 22 more quickly. After the first sub-shell 10 and the second sub-shell 20 are docked, they need to be disassembled before docking with the endoscope, so a force-applying section 122 is provided at the proximal end of the buckle section 121, and the force-applying section 122 needs to be arranged in the extension direction of the buckle section 121. By pressing the force-applying section 122 with external force, the distal end of the buckle section 121 can be disengaged from the buckle hole 22, thereby realizing the disassembly of the first sub-shell 10 and the second sub-shell 20.

[0052] The force-applying section 122 and / or the buckle section 121 are fixedly connected to the first sub-shell 10 via the support column 13. The proximal end of the buckle section 121 is connected to the force-applying section 122 to form a buckle arm 12, and the buckle arm 12 is fixedly connected to the side wall of the first sub-shell 10 via the support column 13. When the force-applying section 122 is pressed by an external force, the support column 13 provides a fulcrum, so that the distal end of the buckle section 121 can be disengaged from the buckle hole 22, thereby releasing the docking of the first sub-shell 10 and the second sub-shell 20.

[0053] According to some optional embodiments, the width direction of the buckling arm 12 is the second direction, and the dimension of the force applying section 122 in the second direction is greater than the dimension of the buckling section 121 in the second direction.

[0054] In the above embodiment, in the second direction, the second dimension b2 of the force-applying section 122 is greater than the first dimension b1 of the buckle section 121. For example, the buckle section 121 and the force-applying section 122 are connected to form an "L" shape, which is convenient for the operator to press the force-applying section 122 with a hand, and the contact area between the hand and the force-applying section 122 can be increased, and the pressure on the finger during the pressing process can be reduced, and the hand feel is more comfortable.

[0055] In some optional embodiments, the second dimension b2 of the force-applying section 122 is greater than the first dimension b1 of the buckle section 121. After the buckle section 121 and the force-applying section 122 are connected, they are in an inverted "T" shape, which can also increase the contact area between the hand and the force-applying section 122 when the operator presses the force-applying section 122, reduce the pressure on the finger during the pressing process, and feel more comfortable. Here, there is no restriction on the shape of the buckle section 121 and the force-applying section 122 after they are connected.

[0056] The width of the buckling section 121 in the second direction is a first dimension b1, and the width of the force applying section 122 in the second direction is a second dimension b2.

[0057] According to some optional embodiments, a surface of the force applying section 122 away from the first sub-shell 10 is a pressing surface 123 , and along a first direction, the pressing surface 123 is inclined along a side close to the first sub-shell 10 , and the first direction is a direction away from the buckling section 121 .

[0058] It can also be understood that the first direction is the extension direction of the buckle section 121, and the second direction is the direction intersecting with the first direction. Preferably, the second direction is perpendicular to the first direction.

[0059] In the above embodiment, the surface of the force-applying section 122 away from the first sub-shell 10 is set as a pressing surface 123, and the operator presses on the pressing surface 123 to make the buckle column 1211 of the buckle section 122 disengage from the buckle hole 22. Preferably, the pressing surface 123 is an inclined surface, and the inclined surface can have a sliding tendency relative to the pressing surface 123 when the finger presses on the pressing surface 123. Specifically, the inclined direction of the pressing surface 123 is in the direction away from the buckle section 121, so that the finger slides on the pressing surface 123 along the inclined direction, so that the pressing part of the finger on the pressing surface 123 is farther from the position of the fulcrum support column 13, which is beneficial to increase the distance between the pressing part of the finger on the pressing surface 123 and the support column 13. In this way, the operator only needs to apply a small force to make the buckle column 1211 disengage from the buckle hole 22.

[0060] According to some optional embodiments, the buckle hole 22 is located in the middle of the second sub-shell 20 in the width direction (second direction). Exemplarily, the buckle hole 22 is located in the middle of the side wall of the second sub-shell 20 in the second direction, and after the buckle column 1211 is buckled with the buckle hole 22, the connection between the first sub-shell 10 and the second sub-shell 20 is more reliable, and the buckle column 1211 is not easy to be separated from the buckle hole 22.

[0061] According to some optional embodiments, at least one of the buckling arms 12 is staggered relative to the buckling hole 22 .

[0062] Exemplarily, the snap-on posts 1211 of the two snap-on arms 12 may be staggered relative to the snap-on holes 22 on the same side; alternatively, the snap-on posts 1211 provided on either of the two snap-on arms 12 may be staggered relative to the snap-on holes 22 on the same side.

[0063] In some optional embodiments, the misalignment setting between the buckle arm 12 and the buckle hole 22 may include two types, the first type is that the buckle hole 22 is set at the middle position in the second direction, and the buckle column 1211 of the buckle arm 12 is set offset; the second type is that the buckle arm 1211 is located in the middle position in the second direction, and the buckle hole 22 is set offset. Preferably, in the present application, the buckle column 1211 is set offset, and the buckle hole 22 is set in the middle position in the second direction, so that after the buckle column 1211 is inserted into the buckle hole 22, the force position of the buckle arm 12 will not be offset, ensuring the reliability of the connection between the first sub-shell 10 and the second sub-shell 20.

[0064] In the above embodiment, when at least one of the buckling arms 12 is misaligned relative to the buckling hole 22, the docking and disassembly states of the first sub-shell 10 and the second sub-shell 20 are as follows:

[0065] During the docking state of the first sub-shell 10 and the second sub-shell 20, the first sub-shell 10 and the second sub-shell 20 are plugged in through the limiting protrusion 11 and the limiting groove 21, and the distal buckling posts 1211 of the buckling arms 12 disposed on both sides of the first sub-shell 10 correspond to the buckling holes 22 on the same side, thereby realizing the buckling of the first sub-shell 10 and the second sub-shell 20. If the limiting posts 1211 are not smoothly inserted into the buckling holes 22, the operator can assist in moving the limiting posts 1211 to insert them into the buckling holes 22.

[0066] During the process of switching the first sub-shell 10 and the second sub-shell 20 from the docking state to the disassembly state, the operator can press the pressing surface 123 on the force-applying section 122, and the snap-on post 1211 will pop out from the snap-on hole 22. The snap-on post 1211 will be misaligned with the snap-on hole 22 under the action of its own elastic force. At this time, even if the operator releases his hand placed on the pressing surface 123, the snap-on post 1211 will abut against the side wall of one side of the snap-on hole 22, and the snap-on post 1211 will not be inserted into the snap-on hole 22 again, so that the first sub-shell 10 and the second sub-shell 20 can be conveniently disassembled at one time.

[0067] According to some optional embodiments, the buckle section 121 is provided with a buckle column 1211 that can be inserted into the buckle hole 22. Exemplarily, the buckle column 1211 is provided on the inner wall of the buckle section 121, and when the first sub-shell 10 and the second sub-shell 20 are docked, the buckle column 1211 can be inserted into the buckle hole 22, wherein the outer wall shape of the buckle column 1211 is adapted to the shape of the buckle hole 22, so that after the buckle column 1211 is inserted into the buckle hole 22, the sealing of the handle housing can be ensured.

[0068] A first limiting surface 221 is provided on the hole wall of the buckle hole 22, and a second limiting surface 1212 corresponding to the first limiting surface 221 is provided on the buckle column 1211;

[0069] And / or, the first limiting surface 211 is disposed adjacent to the proximal end of the second sub-housing 20 .

[0070] In the above embodiment, the cross section of the buckle hole 22 along the radial direction is circular, and a first limiting surface 221 is provided on the hole wall of the buckle hole 22, and the first limiting surface 221 is a plane. At this time, the cross section of the buckle hole 22 along the radial direction is a "D" shape. Correspondingly, the buckle column 1211 is provided with a second limiting surface 1212 at a position corresponding to the first limiting surface 221 in the buckle hole 22. When the buckle column 1211 is inserted into the buckle hole 22, the first limiting surface 221 corresponds to the second limiting surface 1212, so that the buckle column 1211 can be limited from rotating relative to the buckle hole 22, thereby ensuring the stability of the connection between the first sub-shell 10 and the second sub-shell 20.

[0071] The first limiting surface 221 can be set at any position on the inner wall of the buckle hole 22. Preferably, in the present application, the first limiting surface 221 is set close to the proximal end of the second sub-shell 20. In this way, after the buckle post 1211 is inserted into the buckle hole 22, the buckle section 121 may be subjected to tension. At this time, the first limiting surface 221 on the buckle hole 22 and the second limiting surface 1212 of the buckle post 1211 will be more closely attached under the action of the tension, thereby increasing the stability of the connection between the first sub-shell 10 and the second sub-shell 20.

[0072] According to some optional embodiments, a guide groove 23 is provided on at least one side of the outer wall of the second sub-shell 20. The guide groove 23 is communicated with the buckle hole 22, and the guide groove 23 extends from the proximal end to the distal end of the second sub-shell 20.

[0073] Exemplarily, the guide groove 23 can be arranged only on the side where the snap-on column 1211 and the snap-on hole 22 are not misaligned, to ensure that when the first sub-shell 10 and the second sub-shell 20 are docked, at least one of the two snap-on columns 1211 can be first inserted into the snap-on hole 22 along the guide groove 23, and the other can be inserted into the snap-on hole 22 by the operator; the guide groove 22 can also be arranged on both sides of the second sub-shell 20, so that the two snap-on arms 12 can slide into the corresponding snap-on holes 22 along the guide groove 23, thereby improving the docking and installation efficiency of the first sub-shell 10 and the second sub-shell 20.

[0074] In the above embodiment, the proximal end of the guide groove 23 passes through the proximal end of the second sub-shell 20, so that the snap-on column 1211 of the snap-on arm 12 can smoothly enter the snap-on hole 22 along the guide groove 23, ensuring the sliding direction of the snap-on column 1211 on the second sub-shell 20.

[0075] According to some optional embodiments, the width of the guide slot 23 gradually increases from the distal end of the second sub-shell 20 to the proximal end of the second sub-shell 20, such as d1>d2, that is, the width of the guide slot 23 gradually decreases in the direction close to the buckle hole 22, so that the buckle post 1211 can be aligned with the guide slot 23 first, and then can slowly slide into the buckle hole 22 along the guide slot 23. And at least one side of the slot wall of the guide slot 23 is tangent to the buckle hole 22, and the buckle post 1211 can slide along the slot wall of the guide slot 23 after entering the guide slot 23, thereby reducing the shaking of the buckle post 1211 when there is no support during the sliding process.

[0076] A second aspect of the present application provides a guide sheath handle, comprising the above-mentioned handle housing.

[0077] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0078] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A handle housing, characterized in that: include: A first sub-housing (10) and a second sub-housing (20); A limiting boss (11) is provided on the butting side of one of the first sub-shell (10) and the second sub-shell (20), and a limiting groove (21) is correspondingly provided on the butting side of the other, the limiting boss (11) and the limiting groove (21) being butted and matched with each other to limit the rotation of the first sub-shell (10) relative to the second sub-shell (20); The outer wall of the first sub-shell (10) is provided with two buckling arms (12), and the outer wall of the second sub-shell (20) is provided with buckling holes (22) corresponding to the buckling arms (12), and at least a portion of the buckling arms (12) can be inserted into the buckling holes (22).

2. The handle housing according to claim 1, characterized in that: Along the extension direction of the buckling arm (12), the buckling arm (12) comprises a buckling section (121) and a force applying section (122); At least a portion of the distal end of the buckle section (121) can be inserted into the buckle hole (22) and is limitedly matched with the buckle hole (22); the proximal end of the buckle section (121) is connected to the force applying section (122); The outer wall of the first sub-shell (10) is provided with a support column (13), and the connection point between the buckle section (121) and the force-applying section (122) is connected to the support column (13).

3. The handle housing according to claim 2, characterized in that: The width direction of the buckling arm (12) is the second direction, and the dimension of the force-applying section (122) in the second direction is greater than the dimension of the buckling section (121) in the second direction.

4. The handle housing according to claim 2, characterized in that: A side of the force-applying section (122) away from the first sub-shell (10) is a pressing surface (123), and along a first direction, the pressing surface (123) is inclined along a side close to the first sub-shell (10), and the first direction is a direction away from the buckling section (121).

5. The handle housing according to claim 3, characterized in that: The buckle hole (22) is located at the middle position of the second sub-shell (20) in the width direction.

6. The handle housing according to claim 1, characterized in that: At least one of the buckling arms (12) is disposed offset relative to the buckling hole (22).

7. The handle housing according to claim 2, characterized in that: The buckle section (121) is provided with a buckle column (1211) which can be inserted into the buckle hole (22); A first limiting surface (221) is provided on the hole wall of the buckle hole (22), and a second limiting surface (1212) corresponding to the first limiting surface (221) is provided on the buckle column (1211); And / or, the first limiting surface (221) is arranged adjacent to the proximal end of the second sub-shell (20).

8. The handle housing according to claim 1, characterized in that: A guide groove (23) is provided on at least one side of the outer wall of the second sub-shell (20); the guide groove (23) is communicated with the buckle hole (22), and the guide groove (23) extends from the proximal end to the distal end of the second sub-shell (20).

9. The handle housing according to claim 8, characterized in that: The width of the guide groove (23) gradually increases from the distal end of the second sub-shell (20) to the proximal end of the second sub-shell (20); and at least one side wall of the guide groove (23) is tangent to the buckle hole (22).

10. An introducer sheath handle, characterized in that: Comprising a handle housing as described in any one of claims 1-9.

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