Biopsy sampling main machine, vacuum connector and biopsy sampling equipment

Abstract

The utility model relates to a biopsy sampling host, a vacuum joint and biopsy sampling equipment, the vacuum joint and a connecting hose are integrally arranged in a mounting through hole in a penetrating manner, and a second positioning part on the vacuum joint is positioned and matched with a first positioning part on the inner side wall of the mounting through hole in the process that the vacuum joint moves along the insertion direction; therefore, the vacuum connector cannot continuously move in the insertion direction, the second limiting part, the connecting hose and the first limiting part are matched in a limiting mode through pretightening force in the pulling-out direction of the vacuum connector, the vacuum connector cannot move in the pulling-out direction, and then insertion and pulling-out of the vacuum connector relative to a machine body are stably and reliably restrained. When the vacuum connector needs to be maintained or replaced, the vacuum connector can be pulled out of the mounting through hole to be maintained or replaced only by applying acting force larger than pre-tightening force to the vacuum connector in the pulling-out direction, dismounting is convenient and simple, and therefore the vacuum connector has the advantages of being stable in mounting and convenient to dismount.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a biopsy sampling host, vacuum connector and biopsy sampling equipment. Background Technology

[0002] Biopsy sampling units typically have various connectors mounted on their bodies, such as a vacuum connector for connecting the negative pressure pump and the biopsy handle. Simultaneously, for ease of routine maintenance, the vacuum connector needs to be detachably connected to the unit, allowing for easy removal for repair or replacement when necessary. Traditional biopsy sampling units cannot simultaneously achieve both stable installation and easy disassembly, affecting their usability. Utility Model Content

[0003] Therefore, it is necessary to provide a biopsy sampling host, vacuum connector, and biopsy sampling equipment to address the problem that the inability to simultaneously achieve stable installation and easy disassembly affects usability.

[0004] The technical solution is as follows:

[0005] On one hand, a biopsy sampling host is provided, which is detachably connected to a vacuum connector for connecting an external gas pipeline. The biopsy sampling host includes:

[0006] The body has a mounting through hole for inserting a vacuum connector. The inner sidewall of the mounting through hole is provided with a first positioning part and a first limiting part along the axial direction. The first positioning part is used to position and cooperate with the vacuum connector to limit the insertion depth of the vacuum connector into the mounting through hole.

[0007] A connecting hose, one end of which is used to pass through the mounting through hole and sleeve a portion of the outer side wall of the vacuum connector to connect the negative pressure source of the machine body and the external gas pipeline;

[0008] The first limiting portion is used to jointly squeeze the connecting hose with the outer side wall of the vacuum connector to provide a pre-tightening force that restricts the vacuum connector from being pulled out of the mounting through hole.

[0009] The technical solution will be further explained below:

[0010] In one embodiment, the mounting through hole includes a first mounting hole and a second mounting hole that are axially connected. The inner diameter of the first mounting hole is larger than the inner diameter of the second mounting hole. The first mounting hole forms the first positioning part near the shoulder of the second mounting hole. The first limiting part protrudes from the inner sidewall of the second mounting hole.

[0011] In one embodiment, the first limiting portion is provided with a guide surface, the inner diameter of which decreases along the direction in which the vacuum connector is inserted into the mounting through hole.

[0012] In one embodiment, the fuselage further includes a mounting portion, the mounting through hole is provided on the mounting portion, and the mounting portion is also provided with a notch communicating with the mounting through hole. The notch is provided on the outer periphery of the mounting through hole and penetrates the mounting portion along the axial direction of the mounting through hole, and the width of the notch is smaller than the diameter of the mounting through hole at any axial position.

[0013] The biopsy sampling host of the above embodiment can limit the insertion depth of the vacuum connector into the mounting through hole by setting a first positioning part in the mounting through hole, ensuring that the vacuum connector is inserted in place; by setting a first limiting part in the mounting through hole, which together with part of the outer side wall of the vacuum connector squeezes the connecting hose, it can provide a pre-tightening force to limit the vacuum connector from being pulled out of the mounting through hole, thereby limiting the vacuum connector from being pulled out of the mounting through hole and ensuring the stability of the vacuum connector installation.

[0014] On the other hand, a vacuum connector is provided, which is adapted to the biopsy sampling host, the vacuum connector comprising:

[0015] The connector body is used to be inserted into the mounting through hole;

[0016] A second positioning part is disposed on the outer wall of the connector body. The second positioning part is used to cooperate with the first positioning part to limit the depth of the vacuum connector inserted into the mounting through hole; and

[0017] The second limiting part is provided on the outer wall of the connector body. The second limiting part is used to squeeze the connecting hose together with the first limiting part to provide a pre-tightening force to restrict the vacuum connector from being pulled out of the mounting through hole.

[0018] In one embodiment, the connector body includes a first tube and a second tube that are axially connected and communicate with each other. The outer diameter of the first tube is larger than the outer diameter of the second tube. The first tube forms a second positioning portion with a shoulder facing the second tube. The outer side wall of the second tube is provided with a second limiting portion.

[0019] In one embodiment, the second limiting portion includes a limiting cone, and the connecting hose is sleeved on the outer side wall of the limiting cone. The limiting cone and the first limiting portion together compress the connecting hose to provide a pre-tightening force that restricts the vacuum connector from being pulled out of the mounting through hole.

[0020] The vacuum connector in the above embodiment, by providing a second positioning part that cooperates with the first positioning part to limit the movement of the vacuum connector in the insertion direction, provides a pre-tightening force to restrict the vacuum connector from being pulled out of the mounting through hole by providing the second limiting part and the first limiting part together to compress the connecting hose. This provides a stable and reliable constraint on the insertion and removal of the vacuum connector relative to the machine body, thereby enabling the vacuum connector, connecting hose and machine body to achieve a stable and reliable assembly connection and preventing loosening.

[0021] On the other hand, a biopsy sampling device is provided, including:

[0022] The biopsy sampling host; and

[0023] The vacuum connector.

[0024] In one embodiment, the distance between the outermost side of the second limiting portion and the innermost side of the first limiting portion along the radial direction of the mounting through hole is less than the wall thickness of the connecting hose.

[0025] and / or;

[0026] The first limiting part is positioned to block the second limiting part in the direction in which the vacuum connector is pulled out of the mounting through hole.

[0027] In one embodiment, the second limiting portion includes a limiting cone. Along the radial direction of the mounting through hole, the distance between the small end of the limiting cone and the innermost side of the first limiting portion is equal to or greater than the wall thickness of the connecting hose, and the distance between the large end of the limiting cone and the innermost side of the first limiting portion is less than or equal to the wall thickness of the connecting hose.

[0028] In the biopsy sampling device described in the above embodiment, when a vacuum connector needs to be installed on the biopsy sampling main unit, one end of the connecting hose is inserted into the mounting through hole and fitted onto part of the outer wall of the vacuum connector. The entire vacuum connector and connecting hose are inserted into the mounting through hole. During the movement of the vacuum connector in the insertion direction, the second positioning part on the vacuum connector engages with the first positioning part on the inner wall of the mounting through hole, preventing the vacuum connector from moving further in the insertion direction. The second limiting part, connecting hose, and first limiting part are pre-tightened and engaged in the pull-out direction of the vacuum connector, preventing the vacuum connector from moving in the pull-out direction. This provides stable and reliable constraint on the insertion and removal of the vacuum connector relative to the machine body, thereby ensuring a stable and reliable assembly connection of the vacuum connector, connecting hose, and machine body, preventing loosening. When the vacuum connector needs to be repaired or replaced, simply apply a force greater than the pre-tightening force to the vacuum connector in the pull-out direction to pull it out of the mounting through hole for repair or replacement. Disassembly is convenient and simple, thus combining the characteristics of stable installation and convenient disassembly. Attached Figure Description

[0029] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of a biopsy sampling device according to one embodiment;

[0032] Figure 2 for Figure 1 A partial cross-sectional view of the vacuum connector of the biopsy sampling equipment;

[0033] Figure 3 for Figure 2 A magnified view of part A at the vacuum connector;

[0034] Figure 4 for Figure 1 A schematic diagram of the vacuum connector of a biopsy sampling device.

[0035] Explanation of reference numerals in the attached figures:

[0036] 100. Vacuum connector; 110. First positioning part; 120. First limiting part; 121. Limiting cone; 130. First tube body; 131. Protrusion; 140. Second tube body; 200. Body; 210. Mounting through hole; 211. First mounting hole; 212. Second mounting hole; 220. Second positioning part; 230. Second limiting part; 240. Notch; 300. Connecting hose. Detailed Implementation

[0037] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0038] In one embodiment, a biopsy sampling device is provided, including a biopsy sampling host and a vacuum connector 100. The vacuum connector 100 is compatible with the biopsy sampling host and is both stable to install and easy to disassemble, making it convenient to use.

[0039] It should be noted that the external gas line can be connected to the negative pressure source via the vacuum connector 100. This external gas line is used to connect the negative pressure source to the biopsy sampling handle to provide the negative pressure required for sampling. The biopsy sampling handle can use an existing structure, which will not be described in detail here.

[0040] like Figures 1 to 4 As shown, in one embodiment, a biopsy sampling host is provided, which is detachably connected to a vacuum connector for connecting an external gas pipeline. The biopsy sampling host includes a body 200 and a connecting hose 300.

[0041] like Figure 1 and Figure 2 As shown, the body 200 can serve as the main structure and can be box-shaped or similar in form, providing space for the installation and housing of various components. The body 200 has a mounting through-hole 210 for inserting a vacuum connector 100. Specifically, the vacuum connector 100 can be inserted into the mounting through-hole 210. Furthermore, the inner wall of the mounting through-hole 210 is provided with a first positioning part 220 and a first limiting part 230 along the axial direction, i.e., the first positioning part 220 and the first limiting part 230 are arranged along the axial direction of the mounting through-hole 210. Moreover, the first positioning part 220 is used to position and cooperate with the vacuum connector 100 to limit the insertion depth of the vacuum connector 100 into the mounting through-hole 210, ensuring that the vacuum connector 100 is properly inserted.

[0042] like Figures 1 to 3 As shown, the connecting hose 300 can be a tubular structure made of a flexible material such as a plastic tube. One end of the connecting hose 300 is used to pass through the mounting through hole 210 and sleeved on part of the outer wall of the vacuum connector 100 to connect the negative pressure source of the machine body 200 and the external gas pipeline.

[0043] The negative pressure source can be existing devices such as negative pressure pumps and vacuum pumps, which will not be elaborated here.

[0044] The first limiting part 230 is used to jointly compress the connecting hose 300 with the outer side wall of the vacuum connector 100 to provide a pre-tightening force that restricts the vacuum connector 100 from being pulled out of the mounting through hole 210, thereby limiting the vacuum connector 100 from being pulled out of the mounting through hole 210 and ensuring the stability of the vacuum connector 100 installation. When the vacuum connector 100 needs to be repaired or replaced, simply apply a force greater than the pre-tightening force to the vacuum connector 100 in the pulling direction to pull the vacuum connector 100 out of the mounting through hole 210 for repair or replacement. Disassembly is convenient and simple, thus combining the characteristics of stable installation and convenient disassembly.

[0045] like Figure 4 As shown, in one embodiment, a vacuum connector 100 is provided, including a connector body, a second positioning part 110 and a second limiting part 120.

[0046] The connector body is used to be inserted into the mounting through hole 210.

[0047] The second positioning part 110 is disposed on the outer wall of the connector body. The second positioning part 110 is used to cooperate with the first positioning part 220 to limit the depth of the vacuum connector 100 inserted into the mounting through hole 210.

[0048] The second limiting part 120 is provided on the outer wall of the connector body. The second limiting part 120 is used to squeeze the connecting hose 300 together with the first limiting part 230 to provide a pre-tightening force to restrict the vacuum connector 100 from being pulled out of the mounting through hole 210, thereby restricting the vacuum connector 100 from being pulled out of the mounting through hole 210 and ensuring the stability of the vacuum connector 100 installation.

[0049] During installation, one end of the connecting hose 300 is inserted into the mounting through hole 210 and sleeved on a portion of the outer wall of the vacuum connector 100. The entire vacuum connector 100 and the connecting hose 300 are inserted into the mounting through hole 210. As the vacuum connector 100 moves along the insertion direction, the second positioning part 110 on the vacuum connector 100 is positioned and engaged with the first positioning part 220 on the inner wall of the mounting through hole 210. This prevents the vacuum connector 100 from moving further along the insertion direction. The second limiting part 120, the connecting hose 300, and the first limiting part 230 are pre-tightened and engaged along the pull-out direction of the vacuum connector 100, preventing the vacuum connector 100 from moving along the pull-out direction. This provides stable and reliable constraint on the insertion and pull-out of the vacuum connector 100 relative to the body 200, thereby achieving a stable and reliable assembly connection of the vacuum connector 100, the connecting hose 300, and the body 200, preventing loosening. When the vacuum connector 100 needs to be repaired or replaced, simply apply a force greater than the pre-tightening force to the vacuum connector 100 in the pull-out direction to pull the vacuum connector 100 out of the mounting through hole 210 for repair or replacement. Disassembly is convenient and simple, thus combining the characteristics of stable installation and convenient disassembly.

[0050] It should be noted that the preload can be flexibly adjusted or designed according to actual installation requirements, as long as it ensures that the vacuum connector 100 is installed securely and is easy to disassemble; there are no restrictions here.

[0051] It is understandable that the insertion direction (e.g.) Figure 3 (as shown in the C direction) and the pull-out direction (as shown in the C direction) Figure 3 The direction B (as shown) can be two opposite directions along the axial direction of the mounting through hole 210. When the vacuum connector 100 moves in the insertion direction, it can indicate that the vacuum connector 100 extends into the mounting through hole 210. When the vacuum connector 100 moves in the pull-out direction, it can indicate that the vacuum connector 100 exits the mounting through hole 210.

[0052] It is worth mentioning that, for biopsy sampling equipment, a vacuum connector 100 can be permanently installed in the mounting through hole 210 of the biopsy sampling host 200. Before the operation, an external gas pipeline is connected to the vacuum connector 100 to connect the biopsy sampling handle connected to the external gas pipeline to the vacuum pump. Of course, the vacuum connector can also be left uninstalled in the mounting through hole 210 of the biopsy sampling host 200 for a long time, and then installed before the operation.

[0053] like Figure 3 As shown, in one embodiment, along the radial direction of the mounting through hole 210, the distance between the outermost side of the second limiting portion 120 and the innermost side of the first limiting portion 230 (e.g., ...) Figure 3The wall thickness of the connecting hose (as shown in L) is less than 300 mm (e.g., Figure 3 As shown in D), the shortest distance between the second limiting part 120 and the first limiting part 230 in the radial direction of the mounting through hole 210 is less than the wall thickness of the connecting hose 300, so that the second limiting part 120 and the first limiting part 230 can achieve a tight engagement with the connecting hose 300, thereby causing the vacuum connector 100 to be subjected to a pre-tightening force in the pull-out direction, preventing the vacuum connector 100 from easily moving or shaking relative to the body 200, and ensuring the stability and reliability of the assembly of the vacuum connector 100 and the body 200.

[0054] like Figure 3 As shown, in one embodiment, the first limiting part 230 is positioned to block the second limiting part 120 as the vacuum connector 100 is pulled out of the mounting through hole 210. This prevents the vacuum connector 100 from easily becoming detached from the body 200, ensuring installation stability.

[0055] like Figure 3 As shown, in one embodiment, when the first positioning part 220 and the second positioning part 110 are positioned and engaged, the second limiting part 120 and the first limiting part 230 are spaced apart along the axial direction of the mounting through hole 210. This avoids excessive stress concentration caused by the second limiting part 120 and the first limiting part 230 being radially aligned with each other in the mounting through hole 210, thus preventing damage to the connecting hose 300, extending the service life of the connecting hose 300, and preventing air leakage. Furthermore, the fact that the force application points of the second limiting part 120 and the first limiting part 230 on the connecting hose 300 are spaced apart along the axial direction of the mounting through hole 210 enhances the engagement strength of the connecting hose 300, preventing detachment or loosening, and ensuring the stability and reliability of the assembly.

[0056] The positioning cooperation between the second positioning part 110 and the first positioning part 220 can be achieved by either contact or by fitting.

[0057] like Figures 2 to 4As shown, in one embodiment, the connector body includes a first tube 130 and a second tube 140 that are axially connected and communicate with each other. The outer diameter of the first tube 130 is larger than the outer diameter of the second tube 140. A second positioning portion 110 is formed on the shoulder of the first tube 130 facing the second tube 140, and a second limiting portion 120 is provided on the outer side wall of the second tube 140. In one embodiment, the mounting through hole 210 includes a first mounting hole 211 and a second mounting hole 212 that are axially connected. The inner diameter of the first mounting hole 211 is larger than the inner diameter of the second mounting hole 212. Furthermore, a first positioning portion 220 is formed on the shoulder of the first mounting hole 211 near the second mounting hole 212, and a first limiting portion 230 is provided on the inner side wall of the second mounting hole 212. Thus, one end of the connecting hose 300 is fitted onto the second limiting part 120 of the second tube body 140, and the entire vacuum connector 100 and connecting hose 300 are inserted into the mounting through hole 210, so that the first tube body 130 is located in the first mounting hole 211 and the second tube body 140 is located in the second mounting hole 212. During the movement of the vacuum connector 100 in the insertion direction, the second positioning part 110 on the first tube body 130 is engaged with the first positioning part 220 on the inner wall of the first mounting hole 211, thereby positioning the vacuum connector 100... Unable to move further in the insertion direction, the second limiting part 120 on the outer wall of the second tube 140, the first limiting part 230 on the inner wall of the connecting hose 300 and the second mounting hole 212 are clamped together with a pre-tightening force in the pull-out direction of the vacuum connector 100, thus preventing the vacuum connector 100 from moving in the pull-out direction. This provides stable and reliable constraint on the insertion and removal of the vacuum connector 100 relative to the machine body 200, ensuring a stable and reliable assembly connection between the vacuum connector 100, the connecting hose 300, and the machine body 200, preventing loosening. When the vacuum connector 100 needs maintenance or replacement, simply apply a force greater than the preset pre-tightening force to the first tube 130 in the pull-out direction to pull the vacuum connector 100 out of the mounting hole 210 for maintenance or replacement. Disassembly is convenient and simple, thus combining the characteristics of stable installation and convenient disassembly.

[0058] like Figure 4 As shown, in one embodiment, the outer wall of the first tube 130 is provided with a protrusion 131, and the inner wall of the first mounting hole 211 is provided with a groove that engages with the protrusion 131. Thus, by utilizing the engagement between the protrusion 131 and the groove, the rotation of the first tube 130 relative to the body 200 along the axis of the mounting hole 210 can be restricted. Consequently, the vacuum connector 100 is prevented from rotating relative to the body 200 along the axis of the mounting hole 210, ensuring that the vacuum connector 100 does not rotate during the docking and installation process with the biopsy sampling handle, facilitating assembly and docking.

[0059] The connection between the vacuum connector 100 and the biopsy sampling handle can be achieved by screwing or snapping, which are existing technologies and will not be described in detail here.

[0060] The limiting engagement between the second limiting part 120, the connecting hose 300 and the first limiting part 230 can be achieved by clamping or biting.

[0061] like Figure 3 As shown, in one embodiment, the second limiting part 120 includes a limiting cone 121. A connecting hose 300 is sleeved on the outer wall of the limiting cone 121. The limiting cone 121 and the first limiting part 230 together compress the connecting hose 300 to provide a pre-tightening force that restricts the vacuum connector 100 from being pulled out of the mounting through hole 210. Thus, the engagement of the limiting cone 121 and the first limiting part 230 with the connecting hose 300 subjects the vacuum connector 100 to a pre-tightening force in the pull-out direction, preventing the vacuum connector 100 from moving in that direction. Combined with the positioning cooperation of the second positioning part 110 and the first positioning part 220, the insertion and removal of the vacuum connector 100 relative to the body 200 are stably and reliably constrained, thereby ensuring a stable and reliable assembly connection of the vacuum connector 100, the connecting hose 300, and the body 200, preventing loosening.

[0062] like Figure 3 As shown, in one embodiment, the second limiting portion 120 includes a limiting cone 121, and along the radial direction of the mounting through hole 210, the distance between the small end of the limiting cone 121 and the innermost side of the first limiting portion 230 (e.g., ...) Figure 3 The distance between the limiting cone 121 and the first limiting part 230 in the radial direction of the mounting through hole 210 is equal to or greater than the wall thickness of the connecting hose 300, that is, the maximum distance between the limiting cone 121 and the first limiting part 230 in the radial direction of the mounting through hole 210 is equal to or greater than the wall thickness of the connecting hose 300, so that the limiting cone 121 and the connecting hose 300 can pass through the first limiting part 230 as a whole. Figure 3 The minimum distance between the limiting cone 121 and the first limiting part 230 in the radial direction of the mounting through hole 210 is less than the wall thickness of the connecting hose 300, as shown in L. This allows the limiting cone 121 and the first limiting part 230 to achieve a tight engagement with the connecting hose 300, thereby subjecting the vacuum connector 100 to a pre-tightening force in the pull-out direction. This prevents the vacuum connector 100 from easily moving or shaking relative to the machine body 200, ensuring the stability and reliability of the assembly between the vacuum connector 100 and the machine body 200.

[0063] The small end of the limiting cone 121 refers to the end with a relatively small outer diameter; the large end of the limiting cone 121 refers to the end with a relatively large outer diameter.

[0064] In one embodiment, the first limiting portion 230 is provided with a guide surface, the inner diameter of which decreases along the direction in which the vacuum connector 100 is inserted into the mounting through hole 210. This facilitates the insertion of the vacuum connector 100 and the connecting hose 300 together into the mounting through hole 210 along the insertion direction, providing guidance for the insertion.

[0065] like Figure 1 As shown, in one embodiment, the fuselage 200 further includes a mounting portion, a mounting through hole 210 is provided on the mounting portion, and the mounting portion is also provided with a notch 240 communicating with the mounting through hole 210. The notch 240 is provided on the outer periphery of the mounting through hole 210 and passes through the mounting portion along the axial direction of the mounting through hole 210, and the width of the notch 240 is smaller than the diameter of the mounting through hole 210 at any axial position. In this way, the vacuum connector 100 and the connecting hose 300, assembled together, can be inserted into the mounting through hole 210 through the notch 240. Then, the vacuum connector 100 can be moved relative to the machine body 200 along the insertion direction until the second positioning part 110 and the first positioning part 220 are positioned and engaged along the insertion direction of the vacuum connector 100, and the second limiting part 120, the connecting hose 300, and the first limiting part 230 are pre-tightened and engaged along the pull-out direction of the vacuum connector 100. This completes the assembly connection of the vacuum connector 100, the connecting hose 300, and the machine body 200, improving assembly convenience. Furthermore, the notch 240 can reduce manufacturing precision requirements; even if there are dimensional errors during the manufacturing process of the mounting through hole 210, it will not affect the assembly connection of the vacuum connector 100, the connecting hose 300, and the machine body 200.

[0066] It should be noted that "a certain body" or "a certain part" can be a portion of the corresponding "component," meaning that "a certain body" or "a certain part" is integrally formed and manufactured with the "other parts of the component"; or it can be an independent component that can be separated from the "other parts of the component," meaning that "a certain body" or "a certain part" can be manufactured independently and then combined with the "other parts of the component" to form a whole. The expression of "a certain body" or "a certain part" in this application is only one embodiment for ease of reading, and is not intended to limit the scope of protection of this application. Any technical solution that includes the above features and has the same function should be understood as an equivalent technical solution of this application.

[0067] It should be noted that the components included in the terms "unit," "component," "mechanism," and "device" of this application can be flexibly combined, enabling modular production according to actual needs and facilitating modular assembly. The division of the above-mentioned components in this application is merely one embodiment for ease of reading and is not intended to limit the scope of protection of this application. Any solution that includes the above-mentioned components and has the same function should be understood as an equivalent technical solution of this application.

[0068] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more of the related listed items.

[0069] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0070] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0071] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0072] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component. Furthermore, when a component is considered to be "fixed transmission connection" to another component, the two can be fixed in a detachable or non-detachable manner, as long as power transmission can be achieved, such as sleeve, snap-fit, integral molding, welding, etc., which can be achieved in the prior art and will not be elaborated here. When a component is perpendicular or approximately perpendicular to another component, it means that the two are ideally perpendicular, but due to the influence of manufacturing and assembly, there may be a certain degree of perpendicularity error. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0073] It should also be understood that, in interpreting the connection or positional relationships of components, although not explicitly described, connection and positional relationships are interpreted to include a range of error, which should be within the acceptable deviation range of a specific value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0074] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A biopsy sampling host, detachably connected to a vacuum connector for connecting an external gas pipeline, characterized in that, The biopsy sampling host includes: The body has a mounting through hole for inserting a vacuum connector. The inner sidewall of the mounting through hole is provided with a first positioning part and a first limiting part along the axial direction. The first positioning part is used to position and cooperate with the vacuum connector to limit the insertion depth of the vacuum connector into the mounting through hole. A connecting hose, one end of which is used to pass through the mounting through hole and sleeve a portion of the outer side wall of the vacuum connector to connect the negative pressure source of the machine body and the external gas pipeline; The first limiting portion is used to jointly squeeze the connecting hose with the outer side wall of the vacuum connector to provide a pre-tightening force that restricts the vacuum connector from being pulled out of the mounting through hole.

2. The biopsy sampling host according to claim 1, characterized in that, The mounting through hole includes a first mounting hole and a second mounting hole that are connected along the axial direction. The inner diameter of the first mounting hole is larger than the inner diameter of the second mounting hole. The first positioning part is formed by the shoulder of the first mounting hole near the second mounting hole. The first limiting part is protruding from the inner sidewall of the second mounting hole.

3. The biopsy sampling host according to claim 1 or 2, characterized in that, The first limiting part has a guide surface, the inner diameter of which decreases along the direction in which the vacuum connector is inserted into the mounting through hole.

4. The biopsy sampling host according to claim 1, characterized in that, The fuselage also includes a mounting part, the mounting through hole is provided on the mounting part, and the mounting part is also provided with a notch communicating with the mounting through hole. The notch is provided on the outer periphery of the mounting through hole and penetrates the mounting part along the axial direction of the mounting through hole, and the width of the notch is smaller than the diameter of the mounting through hole at any axial position.

5. A vacuum connector, characterized in that, The vacuum connector is adapted to the biopsy sampling host according to any one of claims 1-4, and the vacuum connector comprises: The connector body is used to be inserted into the mounting through hole; A second positioning part is disposed on the outer wall of the connector body. The second positioning part is used to cooperate with the first positioning part to limit the depth of the vacuum connector inserted into the mounting through hole; and The second limiting part is provided on the outer wall of the connector body. The second limiting part is used to squeeze the connecting hose together with the first limiting part to provide a pre-tightening force to restrict the vacuum connector from being pulled out of the mounting through hole.

6. The vacuum connector according to claim 5, characterized in that, The connector body includes a first tube and a second tube that are axially connected and communicate with each other. The outer diameter of the first tube is larger than the outer diameter of the second tube. The first tube forms a second positioning part with its shoulder facing the second tube. The outer side wall of the second tube is provided with a second limiting part.

7. The vacuum connector according to claim 5 or 6, characterized in that, The second limiting part includes a limiting cone, and the connecting hose is sleeved on the outer side wall of the limiting cone. The limiting cone and the first limiting part together squeeze the connecting hose to provide a pre-tightening force to restrict the vacuum connector from being pulled out of the mounting through hole.

8. A biopsy sampling device, characterized in that, include: Biopsy sampling host, wherein the biopsy sampling host is the biopsy sampling host according to any one of claims 1-4; and Vacuum connector, wherein the vacuum connector is the vacuum connector according to any one of claims 5-7.

9. The biopsy sampling device according to claim 8, characterized in that, Along the radial direction of the mounting through hole, the distance between the outermost side of the second limiting portion and the innermost side of the first limiting portion is less than the wall thickness of the connecting hose; and / or; The first limiting part is positioned to block the second limiting part in the direction in which the vacuum connector is pulled out of the mounting through hole.

10. The biopsy sampling device according to claim 9, characterized in that, The second limiting part includes a limiting cone. Along the radial direction of the mounting through hole, the distance between the small end of the limiting cone and the innermost side of the first limiting part is equal to or greater than the wall thickness of the connecting hose, and the distance between the large end of the limiting cone and the innermost side of the first limiting part is less than or equal to the wall thickness of the connecting hose.

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