CN117770882A

CN117770882A - Sampling device and endoscope

Info

Publication number: CN117770882A
Application number: CN202410214307.5A
Authority: CN
Inventors: 陈东; 严晓波
Original assignee: Xinguangwei Medical Technology Suzhou Co ltd
Current assignee: Xinguangwei Medical Technology Suzhou Co ltd
Priority date: 2024-02-27
Filing date: 2024-02-27
Publication date: 2024-03-29
Anticipated expiration: 2044-02-27
Also published as: CN117770882B

Abstract

The invention discloses a sampling device and an endoscope, wherein the sampling device comprises a fixing seat and a sampling main body, the fixing seat is used for being fixed on a body of the endoscope, and the sampling main body is rotatably arranged on the fixing seat so that the orientation of the sampling main body relative to the body can be adjusted. In the technical scheme provided by the invention, the fixing seat realizes the purpose of installing the sampling main body on the machine body; because the fixing base is fixed relative to the position of the machine body, and the sampling main body is rotatable relative to the fixing base, the position of the sampling main body relative to the machine body can be changed in the rotation process, the sampling main body is more flexibly adapted to different handedness of different users, the use universality of the endoscope is improved, and when the user adopts the most comfortable handedness to operate the endoscope and execute the operation process, the operation difficulty of the operation is reduced to a certain extent.

Description

Sampling device and endoscope

Technical Field

The invention relates to the technical field of medical instruments, in particular to a sampling device and an endoscope.

Background

In some operations requiring sampling and assaying, an endoscope is usually used together with a sample collecting device (i.e., a sampling device), and for pathological effusions of human body parts such as bronchi, abdominal cavity, pelvic cavity, etc., sputum, gastric juice, urine, etc. of corresponding affected parts need to be extracted before and after treatment for analysis, so that an appropriate treatment scheme is selected according to the severity of a patient.

The existing sampling device is generally fixedly arranged on the body of the endoscope, so that the relative direction between the sampling device and the body is fixed, a user is required to operate the sampling device only by a left hand or a right hand, the sampling device is not generally used for different handedness of different users, the use convenience of the user is reduced, and the difficulty of operation is increased to a certain extent.

Disclosure of Invention

The invention mainly aims to provide a sampling device and an endoscope, and aims to solve the problem that the endoscope has no universality due to the fact that the relative orientation between the sampling device and a machine body is fixed in the traditional endoscope.

In order to achieve the above object, the present invention provides a sampling device, which comprises a fixing base and a sampling main body, wherein the fixing base is used for being fixed on a body of an endoscope, and the sampling main body is rotatably installed on the fixing base, so that the orientation of the sampling main body relative to the body can be adjusted.

Optionally, the sampling body comprises:

the movable seat is provided with a connecting protrusion in a protruding mode, one of the movable seat and the fixed seat is provided with a connecting concave portion in a concave mode, and the connecting concave portion is matched with the connecting protrusion in a concave-convex mode and can move rotationally around the connecting protrusion;

the sampling seats are arranged at intervals on one side of the movable seat in the self-rotation radial direction, puncture protrusions are convexly arranged on the sampling seats, and the puncture protrusions are used for puncturing the sampling container; the method comprises the steps of,

the connecting piece is arranged along the rotation radial extension of the movable seat and is respectively connected with the movable seat and the sampling seat so as to enable the sampling seat to be spaced from the machine body;

the sampling main body is provided with a first channel and a second channel which at least penetrate through the puncture protrusion, the first channel is used for being communicated and connected with a suction channel of the machine body, and the second channel is used for being communicated and connected with a suction power source.

Optionally, one of the outer side wall of the connecting protrusion and the inner side wall of the connecting concave part is convexly provided with a buckle, the other is provided with a clamping groove, and the buckle is in clamping connection with the clamping groove;

the clamping groove is distributed along the circumferential extension of the connecting protrusion or the connecting concave part at least at the position.

Optionally, the fixed seat and the movable seat respectively have a first connection surface forming the connection protrusion and a second connection surface forming the connection recess;

one of the first connecting surface and the second connecting surface is provided with a sliding groove, the other one of the first connecting surface and the second connecting surface is provided with a sliding protrusion, the sliding protrusion is in sliding connection with the sliding groove, and the sliding groove is distributed along the circumferential extension of the connecting protrusion or the connecting concave part at the position.

Optionally, the sliding groove extends locally along the circumference of the connecting protrusion or the connecting concave part at the position to form an arc section shape; and/or the number of the groups of groups,

the sliding groove sequentially defines at least two fixing positions along the length direction of the sliding groove, a limiting structure is arranged at the fixing positions, and the limiting structure limits the sliding protrusion to the corresponding fixing positions when the sliding protrusion slides through the sliding groove.

Optionally, the fixing seat penetrates through the connection protrusion or the connection concave part of the fixing seat to form a connection channel, and the connection channel is used for being communicated and connected with the suction channel;

the first channel sequentially penetrates through the connecting piece, the movable seat and the connecting concave part or the connecting protrusion.

Optionally, the sampling body further comprises a seal comprising:

a first seal portion surrounding in a circumferential direction of the first passage; the method comprises the steps of,

a second seal portion connected to the first seal portion and surrounding in a circumferential direction of the connection passage;

the first sealing part and the second sealing part are penetrated with a yielding channel which is communicated with the connecting channel and the first channel.

Optionally, one of the connecting protrusion and the first sealing part is laterally provided with a stop protrusion, the other side is concavely provided with a stop recess, and the stop protrusion is in fit connection with the stop recess.

Optionally, a gap is formed between the outer side wall of the sealing element and the side wall of the fixed seat or the movable seat at the position; wherein,

the movable seat is provided with an annular groove in an annular way at the periphery of the first channel, a boss is defined at the inner part of the annular groove, a groove is concavely formed at one end of the first sealing part, which faces the boss, the abdication channel penetrates through the bottom wall of the groove, and the boss is propped into the groove; or,

the first sealing part is provided with an annular groove in the periphery of the yielding channel, a boss is defined in the annular groove, a groove is concavely formed in one end of the movable seat, which faces the boss, of the movable seat, the first channel penetrates through the bottom wall of the groove, and the boss is propped into the groove.

Optionally, a clip structure is formed on one side of the fixing base, and the clip structure is used for clamping and fixing the machine body; and/or the number of the groups of groups,

the sampling device further comprises a sampling container, and the sampling main body is connected with the sampling container in a communicating way.

In addition, in order to achieve the above object, the present invention provides an endoscope including a body and a sampling device including a fixing base for fixing to the body of the endoscope and a sampling body rotatably mounted to the fixing base such that an orientation of the sampling body with respect to the body is adjustable.

In the technical scheme provided by the invention, the fixing seat realizes the purpose of installing the sampling main body on the machine body; because the fixing base is fixed relative to the position of the machine body, and the sampling main body is rotatable relative to the fixing base, the position of the sampling main body relative to the machine body can be changed in the rotation process, the sampling main body is more flexibly adapted to different handedness of different users, the use universality of the endoscope is improved, and when the user adopts the most comfortable handedness to operate the endoscope and execute the operation process, the operation difficulty of the operation is reduced to a certain extent.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an embodiment of an endoscope provided by the present invention;

FIG. 2 is a schematic perspective view of the sampling device of FIG. 1;

FIG. 3 is a schematic top view of the sampling device of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the sampling device of FIG. 3 (assembled) at A-A;

FIG. 5 is a schematic cross-sectional view of a portion of the structure (unassembled state) of the sampling device of FIG. 3, at A-A;

FIG. 6 is a perspective view of the holder of FIG. 2;

FIG. 7 is a schematic top view of the holder of FIG. 2;

FIG. 8 is a schematic perspective view of a portion of the structure of the sampling body of FIG. 2;

fig. 9 is a schematic perspective view of the seal of fig. 5.

Reference numerals illustrate:

a 100 machine body; 110 an operation body; 111 suction channels; 120 an insert body; 200 fixing seats; 201 connecting channels; 211 a first connection surface; 212 connection bumps; 212a buckle; 212b stop recesses; 213 chute; 213a limit ribs; 220 hoop structure; 300 a sampling body; 301 a first channel; 302 a second channel; 310 a movable seat; 311 second connection surfaces; 312 connecting recesses; 312a clamping grooves; 313 slide convex; 313a limit grooves; 314 an annular groove; 315 bosses; 320 sampling seats; 321 pierce the bulge; 322 an adjustment member; 330 a connector; 340 seals; 340a yield channel; 341a first seal; 341a stop projections; 341b grooves; 342 a second seal; 400 sample containers; 500 connect the tube sets.

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

Referring to fig. 1 to 9, the present invention provides an endoscope including a body 100 and a sampling device provided to the body 100.

Referring to fig. 1, the body 100 includes an operation body 110 and an insertion body 120.

The operation body 110 is mainly a structural body that does not intervene in a patient during an operation and can be held by a medical staff for performing operation control. The operation body 110 may be provided in, for example, a substantially gun-shaped structure, a substantially handle-shaped structure, or the like, according to actual needs. The operation body 110 extends substantially in the front-rear direction, but the front-rear direction is not limited to the specific use orientation of the endoscope, and is merely used to indicate the relative orientation of the respective constituent members in the endoscope.

Based on this, the insertion body 120 is provided at the front end of the manipulation body 110 to extend in the front-rear direction. The insertion body 120 mainly refers to a structural body that is inserted into a patient's body at least at a front section during a surgical procedure and can perform a corresponding surgical operation under the control of medical staff. According to practical needs, the insertion body 120 at least includes a catheter and a probing module disposed at a front end of the catheter. The probing module may be configured as, for example, an imaging assembly and/or an illumination assembly, as desired. The catheter is provided with a working channel for the external instrument to pass through, so that the external instrument can pass through the working channel and execute the required operation with the aid of the exploration module.

It should be noted that, since the present invention mainly improves the sampling device, the structure of the sampling device will be mainly described below with reference to the accompanying drawings.

Referring to fig. 1 to 4, the sampling device of the present invention includes a fixing base 200 and a sampling body 300, wherein the fixing base 200 is used for being fixed on a body 100 of an endoscope, and the sampling body 300 is rotatably mounted on the fixing base 200, so that an orientation of the sampling body 300 relative to the body 100 can be adjusted.

In the technical scheme provided by the invention, the fixing seat 200 achieves the aim of installing the sampling main body 300 on the machine body 100; because the fixing base 200 is fixed relative to the machine body 100, and the sampling main body 300 is rotatable relative to the fixing base 200, the orientation of the sampling main body 300 relative to the machine body 100 can be changed in the rotation process, the sampling main body is more flexibly adapted to different handedness of different users, the use universality of the endoscope is improved, and when the user adopts the most comfortable handedness to operate the endoscope and execute the operation process, the operation difficulty of the operation can be reduced to a certain extent.

It will be appreciated that the specific location of the sampling device relative to the body 100 is not limited, but typically the sampling device is disposed on the operating body 110. And the sampling device is disposed closer to the rear end of the operation body 110 than the front end of the operation body 110. When the manipulation body 110 is provided with an adjusting member for controlling, for example, the telescoping and/or lateral deflection of the insertion body 120, the sampling device may be close to the adjusting member but spaced apart from the adjusting member, facilitating a user to more smoothly switch the manipulation of the adjusting member and the sampling device.

The specific form of the fixing base 200 is not limited, and may be configured to have any suitable size, shape, material, number, etc. according to actual needs. For example, in the embodiment shown in connection with fig. 6-7, the holder 200 is generally cylindrical.

The fixing base 200 may be integrally formed with the housing structure of the machine body 100. At this time, the part of the housing structure of the machine body 100 may directly form the fixing seat 200 without additionally designing the structure of the fixing seat 200. Or the housing structure of the machine body 100 is formed by partial protrusion forming, partial depression forming, or the like, to define the fixing seat 200.

Of course, the fixing base 200 may be detachably or non-detachably connected to the housing structure of the machine body 100 after being formed separately. The detachable connection mode can be one or more modes of screw connection fixing, buckling fixing, adsorption fixing, magnetic attraction fixing, interference connection fixing and the like. The non-detachable connection mode can be, but is not limited to, welding fixation, hot press fixation and the like.

As shown in fig. 1 and fig. 6 to fig. 7, in one embodiment, a clip structure 220 is formed on one side of the fixing base 200, and the clip structure 220 is used for clamping and fixing to the machine body 100. The clip structure 220 may be a ring-shaped hoop structure disposed around the whole circumference, and is configured to be detached and assembled on the machine body 100 by elastic deformation, or split-type hoop closing, etc. Of course, the clip structure 220 may also be a segment-shaped clip structure that is partially extended along the circumferential direction of the machine body 100, and the detachment and assembly on the machine body 100 may also be achieved by elastic deformation or the like.

The holder 200 provides a mounting surface for the sampling body 300 to be rotatably mounted (e.g., the first connection surface 211 of fig. 6-7). The orientation of the mounting surface may be arbitrarily set according to practical needs, so that the rotational axis of the sampling body 300 when rotated relative to the mounting surface may be correspondingly set. For example, in the present embodiment, the mounting surface is disposed generally rearward, so that the rotational axis of the sampling body 300 is generally forward and rearward when rotated relative to the holder 200. When the user holds the operation body 110, the sampling body 300 may be rotationally adjusted closer to the left hand side of the user or closer to the right hand side of the user.

The axis of rotation of the sampling body 300 may be substantially collinear with the central axis of the holder 200. At this time, the sampling body 300 performs a rotation motion with respect to the fixing base 200. In an embodiment, sampling body 300 may include, but is not limited to, a movable mount 310 and a sampling mount 320. The movable seat 310 is rotatably mounted on the fixed seat 200, and the sampling seat 320 is disposed at one end of the movable seat 310 in the rotation axis direction.

The rotational axis of the sampling body 300 may not be collinear with the central axis of the holder 200. At this time, the sampling body 300 performs revolution motion with respect to the fixing base 200:

in an embodiment, the movable seat 310 is rotatably mounted on the fixed seat 200, and the sampling seat 320 is disposed at a distance on one side of the movable seat 310 in the rotation radial direction thereof. The sampling seat 320 and the movable seat 310 may be disposed adjacently so as to be able to shorten the radius of rotation of the sampling seat 320 according to actual needs.

Alternatively referring to fig. 4 to 5, in one embodiment, the sampling body 300 includes a movable base 310, a sampling base 320, and a connecting member 330. Wherein, the movable seat 310 is rotatably mounted on the fixed seat 200; the sampling seats 320 are arranged at intervals on one side of the movable seat 310 in the self-rotation radial direction, the sampling seats 320 are convexly provided with piercing bosses 321, and the piercing bosses 321 are used for piercing the sampling container 400; the connecting member 330 is disposed along the rotation radial direction of the movable seat 310 and connects the movable seat 310 and the sampling seat 320, respectively, so that the sampling seat 320 is spaced apart from the machine body 100.

In view of the above embodiments, the movable base 310 may be configured to be adapted to the fixed base 200, for example, a column shape having a substantially shape and a substantially size. The movable base 310 may provide a surface to be assembled (e.g. the second connecting surface 311 in fig. 8) rotatably mounted on the above-mentioned mounting surface (e.g. the first connecting surface 211 in fig. 6 to 7), so as to realize stable installation of the movable base 310 and the fixed base 200.

Specifically, in one embodiment, one of the movable base 310 and the fixed base 200 is convexly provided with a connection protrusion 212, and the other one thereof is concavely provided with a connection recess 312, and the connection recess 312 is concavely and convexly fitted with the connection protrusion 212 and rotatably movable around the connection protrusion 212. Taking the structure of fig. 4 to 5 as an example, specifically, the first connection surface 211 of the fixed seat 200 may be convexly provided with a connection protrusion 212, and the second connection surface 311 of the movable seat 310 may be concavely provided with a connection recess 312. The connection protrusion 212 is adapted to the shape and size of the connection recess 312. When the connection protrusion 212 and the connection recess 312 are in concave-convex connection, the remaining portions of the first connection surface 211 and the second connection surface 311 abut against each other, which contributes to mutual limitation of the fixed seat 200 and the movable seat 310 in the rotation axial direction and the rotation radial direction of the movable seat 310.

Further, referring to fig. 4 to 8, in an embodiment, one of the outer sidewall of the connection protrusion 212 and the inner sidewall of the connection recess 312 is convexly provided with a buckle 212a, and the other is provided with a slot 312a, and the buckle 212a is in locking connection with the slot 312 a; the locking groove 312a is arranged at least along the circumferential extension of the connecting protrusion 212 or the connecting recess 312 at the position. Specifically, the outer side wall of the connection protrusion 212 may be provided with a protrusion 212a, and the inner side wall of the connection recess 312 may be provided with a recess 312a. The side convex structure of the catch 212a is caught in the catching groove 312a, thereby helping to prevent the connection protrusion 212 and the connection recess 312 from being separated in the direction in which the both are concavely and convexly connected.

The clamping groove 312a is generally configured to extend circumferentially or partially in an arc along the circumference of the connection recess 312, and is adapted to a specifically desired rotation angle range of the sampling body 300. The number of the buckles 212a can be one or at least two according to actual needs. When the number of the snap 212a is at least two, each snap 212a is arranged intermittently along the circumferential direction of the connection protrusion 212, so that the snap fixation of both the connection protrusion 212 and the connection recess 312 at more circumferential positions is achieved.

And/or further, referring to fig. 6 to 8, in an embodiment, the fixing base 200 and the movable base 310 respectively have a first connection surface 211 forming the connection protrusion 212 and a second connection surface 311 forming the connection recess 312; one of the first connection surface 211 and the second connection surface 311 is provided with a sliding groove 213, the other is provided with a sliding protrusion 313, the sliding protrusion 313 is slidingly connected with the sliding groove 213, and the sliding groove 213 is arranged along the circumferential extension of the connection protrusion 212 or the connection concave part 312 at the position. As described above, specifically, for example: the fixing base 200 is formed with a first connecting surface 211, and a connecting protrusion 212 is convexly arranged on the first connecting surface 211; the movable seat 310 is formed with a second connection surface 311, and the second connection surface 311 is concavely provided with a connection concave portion 312. A sliding groove 213 may be concavely provided on the first connection surface 211, and a sliding protrusion 313 may be convexly provided on the second connection surface 311.

The sliding groove 213 is extended along the outer circumference of the connection protrusion 212. The arrangement of the chute 213 is adapted to the actual required rotation range of the sampling body 300. For example, when the rotation range of the sampling body 300 is arbitrarily adjustable between 0 ° and 360 °, the sliding groove 213 may be formed in a substantially annular shape along the outer circumference of the connecting protrusion 212.

Or, for example, when the rotation range of the sampling body 300 is arbitrarily adjustable between 0 ° and a set angle value (any natural value smaller than 360 °), the sliding groove 213 extends in an arc segment shape locally along the circumferential direction of the connection protrusion 212 or the connection recess 312 at the position. At this time, the arc length of the chute 213 defines the rotation angle range of the sampling body 300. In practice, the above-mentioned set angle value can be set to 180 °, i.e. the slide slot 213 is arranged along the half-circumference of the above-mentioned connecting projection 212, so that, in combination with the above-mentioned embodiment, it is possible to switch rotationally between the right-hand side and the left-hand side of the user.

In addition, in an embodiment, the sliding groove 213 sequentially defines at least two fixing positions along the length direction of the sliding groove, and the sliding groove 213 is provided with a limiting structure at the fixing positions, and the limiting structure limits the sliding protrusion 313 to the corresponding fixing position when the sliding protrusion 313 slides. The number of the fixed bits is not limited, and the fixed bits can be set according to actual needs and are more matched with the operation requirements. For example, as shown in fig. 6 to 7, two fixing positions may be provided at opposite sides of the slide slot 213 in the longitudinal direction of the slot itself, and at this time, the two fixing positions define two extreme positions (for example, the left-hand side and the right-hand side in the above description) of the sampling body 300 during rotation.

The specific scheme of the limiting structure is various, but not limited to, interference limiting through a concave-convex structure, a magnetic attraction structure, an adsorption structure, a damping structure and the like, so that the sampling main body 300 is ensured not to generate ineffective shaking relative to the fixing seat 200. For example, in this embodiment, the limiting structure may include a limiting rib 213a disposed on one of the groove side wall of the sliding groove 213 and the outer side wall of the sliding protrusion 313, and a limiting groove 313a disposed on the other of the groove side wall of the sliding groove 213 and the outer side wall of the sliding protrusion 313. Taking the structure shown in fig. 6 to 8 as an example, the limiting ribs 213a are protruded at the groove walls at two opposite sides of the sliding groove 213, and the limiting grooves 313a are opened at the outer side walls at two opposite sides of the sliding protrusion 313.

The stop rib 213a may be a rigid projection structure or an elastic projection structure. The spacing rib 213a has both side walls located in the rotation circumferential direction, and both side walls of the spacing rib 213a may be provided as inclined flat surfaces or convex arc surfaces to enable accurate guiding of both the spacing rib 213a and the spacing groove 313a.

In view of any of the above embodiments, the sampling body 300 is provided with at least a first channel 301 and a second channel 302 extending through the piercing protrusion 321, the first channel 301 being adapted to be communicatively connected to the suction channel 111 of the body 100, and the second channel 302 being adapted to be communicatively connected to a suction power source.

The sampling seat 320 may include a body and a piercing protrusion 321 protruding from one side or end of the body, when the body is connected to the sampling container 400, the piercing protrusion 321 can pierce a predetermined position of the sampling container 400, so as to achieve a communication connection between the first channel 301 and the sampling cavity of the sampling container 400 and between the second channel 302 and the sampling cavity of the sampling container 400. When the suction power source is started to operate, after sequentially passing through the second channel 302, the sampling chamber, and the first channel 301, negative pressure is generated at least at the suction channel 111, and the sample at the suction channel 111 (and in the patient body communicating with the suction channel 111) is drawn out. When a sample enters the sampling cavity via the first channel 301, it is stored and placed in the sampling cavity.

In addition, in an embodiment, the sampling seat 320 may further include an adjusting member 322, where the adjusting member 322 is movably mounted on the body, so that at least the first channel 301 and/or the second channel 302 can be controlled to be on-off during the movement of the adjusting member 322.

The connecting piece 330 realizes the interval connection between the movable seat 310 and the sampling seat 320, so that the sampling seat 320 can be spaced from the movable seat 310, that is, the fixed seat 200 and the machine body 100 by a required distance, thereby being convenient for a user to rotate and operate the sampling seat 320 without interference, and reserving enough space for sampling operation of the sampling seat 320.

It will be appreciated that the first channel 301 may be directly connected (may be an on-off connection) in communication with the suction channel 111 without passing through the connector 330, the movable mount 310 and/or the fixed mount 200, for example by means of an external pipe communication connection with the suction channel 111. Alternatively, the first channel 301 may be indirectly connected (may be connected on-off) in communication with the suction channel 111 via the connector 330, the movable mount 310 and/or the fixed mount 200.

Specifically, referring to fig. 4 to 5, in an embodiment, the fixing base 200 is formed with a connection channel 201 penetrating through the connection protrusion 212 or the connection recess 312 thereof, and the connection channel 201 is configured to be connected to the suction channel 111 in a communicating manner; the first channel 301 sequentially penetrates the connecting piece 330, the movable seat 310, and the connecting recess 312 or the connecting protrusion 212. In this way, the first channel 301 can be laid out by means of the sequential connection between the sampling seat 320, the connecting element 330 and the movable seat 310, and an indirect communication connection of the first channel 301 and the suction channel 111 can be achieved by means of the connecting channel 201. No external tube is required, which contributes to the simplification of the structure and compactness of the sampling body 300, the fixing group, and the body 100.

Further, the connection channel 201 in the holder 200 may be directly connected in communication with the suction channel 111. At this time, the fixing seat 200 may be disposed sufficiently close to the passage opening of the suction passage 111 on the body 100. Alternatively, the connection channel 201 in the holder 200 may be indirectly connected in communication with the suction channel 111 by, for example, connecting the tube set 500. At this time, the relative positions of the fixing base 200 and the channel opening of the suction channel 111 on the machine body 100 can be set arbitrarily according to actual needs, and the connection tube set 500 can be flexibly adapted and adjusted.

In addition, referring to fig. 4, 5 and 9, in an embodiment, the sampling body 300 further includes a sealing member 340, and the sealing member 340 includes a first sealing portion 341 and a second sealing portion 342. Wherein the first sealing portion 341 surrounds along the circumferential direction of the first channel 301; the second sealing part 342 is connected to the first sealing part 341 and surrounds the connection channel 201 along the circumferential direction; the first sealing portion 341 and the second sealing portion 342 are provided with a relief channel 340a communicating the connection channel 201 and the first channel 301. In this way, the sealing member 340 can achieve a good sealing effect between the movable seat 310 and the fixed seat 200, and does not obstruct the communication connection between the first channel 301 and the connection channel 201. The first sealing part 341 is mounted to the movable seat 310, and in particular, may be sleeved in the first passage 301 or may be nested on the outer circumference of the first passage 301. Similarly, the second sealing portion 342 is mounted on the fixing base 200, and may specifically be sleeved in the connection channel 201, or nested on the outer periphery of the connection channel 201.

Further, in an embodiment, one of the connecting protrusion 212 and the first sealing portion 341 is laterally protruded with a stopper protrusion 341a, and the other is laterally recessed with a stopper recess 212b, and the stopper protrusion 341a is fittingly connected with the stopper recess 212 b. For example, a stopper concave portion 212b (substantially in a groove shape) communicating to the connection passage 201 is opened at a free end (i.e., a rear end in the drawing) of the connection protrusion 212, and a stopper protrusion 341a is opened at a corresponding position of the first sealing portion 341. When the stop protrusion 341a is in concave-convex fit with the stop recess 212b, the seal 340 is prevented from rotating relative to the fixed seat 200 and the movable seat 310, and the seal 340 can be supported and limited backwards through the fixed seat 200.

It will be appreciated that in order to increase the sealing effect between the seal 340 and the fixed seat 200 and/or between the seal 340 and the movable seat 310. Taking the case between the sealing element 340 and the movable seat 310 as an example, generally, the outer diameter of the sealing element 340 is slightly larger than the inner diameter of the movable seat 310 (for example, the inner diameter of the first channel 301) at the position, so that the outer side wall of the sealing element 340 and the inner side wall of the movable seat 310 are tightly abutted to achieve a better sealing effect. However, the outer sidewall of the sealing member 340 is closely abutted against the inner sidewall of the movable seat 310, so that a large friction force for preventing rotation is easily generated during the rotation of the movable seat 310 relative to the fixed seat 200.

Thus, in one embodiment, a gap is formed between the outer sidewall of the sealing member 340 and the sidewall of the fixed seat 200 or the movable seat 310 at the location. The provision of the gap helps to prevent the seal 340 from being rotated by the rotation of the movable seat 310, resulting in a large friction force between the seal 340 and the movable seat 310 and between the seal 340 and the fixed seat 200.

In view of this, in an embodiment, the movable seat 310 is provided with an annular groove 314 around the periphery of the first channel 301, a boss 315 is defined at an inner portion of the annular groove 314, a groove 341b is concavely provided at an end of the first sealing portion 341 facing the boss 315, the yielding channel 340a penetrates through a bottom wall of the groove 341b, and the boss 315 is pressed into the groove 341 b. In this way, the end surface of the boss 315 is tightly abutted against the bottom wall of the groove 341b, so that the end surface of the sealing member 340 can be pressed, and a gap is prevented from being formed at the connection between the first channel 301 and the relief channel 340a, thereby reducing the negative pressure suction effect at the connection between the two. Meanwhile, in the present embodiment, when the end surface of the boss 315 is closely abutted with the groove bottom wall of the recess 341b, the contact area therebetween is set smaller than that when the outer side wall of the seal 340 is closely abutted with the inner side wall of the movable seat 310 in the foregoing embodiment. By this design, friction during rotation of the movable mount 310 relative to the fixed mount 200 is facilitated to be reduced. And when the concave-convex fitting scheme of the stopper protrusion 341a and the stopper recess 212b as described above is combined, the boss 315 and the groove 341b, the stopper protrusion 341a and the stopper recess 212b can be fitted to each other, ensuring stable installation between the seal 340 and the movable seat 310, and between the seal 340 and the fixed seat. In addition, whether or not a gap is formed between the sealing member 340 and the movable seat 310 and between the sealing member 340 and the fixed seat 200 as described above, the sealing effect of the first sealing portion 341 on the first channel 301 and the sealing effect of the second sealing portion 342 on the connecting channel 201 are better, so that the requirement that good sealing performance can be maintained even under the condition of rotation is met, and the clinical suction requirement is ensured. In addition, by providing the boss 315 and the recess 341b, it is also helpful to assist in positioning between the seal 340 and the movable seat 310 when assembling the seal 340 and the movable seat 310, ensuring efficient and accurate assembly between the seal 340 and the movable seat 310.

Or as mentioned above, in an embodiment, the first sealing portion 341 is provided with another annular groove around the outer periphery of the yielding channel 340a, the inner portion of the annular groove defines another boss, one end of the movable seat 310 facing the boss is concavely provided with another groove, the first channel 301 penetrates through the bottom wall of the groove, and the boss is pressed into the groove. And will not be described in detail.

Based on any of the above embodiments, it is understood that in one embodiment, the sampling device may be universal with the external sampling vessel 400. Or in an embodiment, the sampling device further comprises a sampling container 400, and the sampling body 300 is connected to the sampling container 400 in communication. The sampling vessel 400 is used in combination with the sampling body 300 described above to achieve a better connection therebetween.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. A sampling device comprising a holder for securing to a body of an endoscope and a sampling body rotatably mounted to the holder such that the orientation of the sampling body relative to the body is adjustable; the sampling body includes:

2. The sampling device of claim 1, wherein one of the outer side wall of the connection protrusion and the inner side wall of the connection recess is convexly provided with a buckle, and the other is provided with a clamping groove, and the buckle is in clamping connection with the clamping groove;

3. The sampling device of claim 1, wherein the fixed seat and the movable seat have a first connection surface forming the connection protrusion and a second connection surface forming the connection recess, respectively;

4. A sampling device according to claim 3, wherein the runner extends partially in an arc along the circumference of the connection protrusion or connection recess at the location; and/or the number of the groups of groups,

5. The sampling device of claim 1, wherein the fixing base is formed with a connection passage penetrating through the connection protrusion or the connection recess of the fixing base, the connection passage being adapted to be connected in communication with the suction passage;

6. The sampling device of claim 5, wherein the sampling body further comprises a seal comprising:

7. The sampling device of claim 6, wherein one of the connection protrusion and the first sealing portion is laterally protruding with a stop protrusion, and wherein the other side is recessed with a stop recess, the stop protrusion being adapted to connect with the stop recess.

8. A sampling device according to claim 6 or 7, wherein a gap is formed between the outer side wall of the seal and the side wall of the fixed or movable seat at the location; wherein,

9. The sampling device of claim 1, wherein a clamp structure is formed on one side of the holder, the clamp structure being configured to be clamped and fixed to the body; and/or the number of the groups of groups,

10. An endoscope comprising a body and a sampling device according to any one of claims 1 to 9.