Endoscope device with imaging and sampling functions

Abstract

The invention provides an endoscope device with imaging and sampling functions, and relates to the field of medical instruments. The device comprises a front end accommodating part, an adapter, an imaging part, a sampling part, a driving part, an illumination part, a liquid injection part, a suction part and a protective sleeve, the front end containing part is a cylinder, a square through hole is formed in the middle of the front end containing part, and a first cylindrical through hole, a second cylindrical through hole, a third cylindrical through hole and a fourth cylindrical through hole are formed in the upper portion, the lower portion, the left portion and the right portion of the square through hole respectively. The imaging part is arranged on the inner side of the first through hole, the lighting part is arranged on the inner side of the second through hole, the liquid injection part is arranged on the inner side of the third through hole, the suction part is arranged on the inner side of the fourth through hole, and the sampling part is arranged on the inner side of the square through hole; a plurality of samples can be obtained after the sampling part enters once, so that the convenience of the sampling process is improved; a sampling sample is isolated from the external environment through the flexible blade, so that the sampling sample is relatively clean, and the accuracy of a detection result is improved.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to an endoscope device with imaging and sampling functions. Background Art

[0002] In the prior art, the sampling endoscopes are mostly sampling devices, which can only obtain samples from one position each time, and cannot achieve sampling from multiple different patient positions. If multiple samples are to be obtained, the previous sample needs to be taken out first and then re-entered into the patient's body, which brings inconvenience to medical staff and patients. In addition, due to the exposed setting of the sampling forceps, the sampled samples may be contaminated by the introduction of body fluids from different positions during the process of entering / leaving the patient's body, making the sample test results inaccurate. Therefore, it is currently a difficult problem to achieve a sampling endoscope that can obtain multiple relatively clean samples in one entry. Summary of the invention

[0003] In order to address the deficiencies of the prior art, the present invention provides an endoscopic device with imaging and sampling functions, which is used to solve the technical problems that the sampling endoscope in the prior art cannot achieve sampling at multiple different patient locations, causing inconvenience to medical staff and patients, and there is a risk of contaminating the sampling samples, thereby affecting the accuracy of the sample detection results.

[0004] To achieve the above purpose, the following technical solutions are used:

[0005] An endoscope device with imaging and sampling functions, comprising: a front end accommodation portion, an adapter, an imaging portion, a sampling portion, a driving portion, an illumination portion, a liquid injection portion, a suction portion, and a protective sleeve;

[0006] The front end receiving portion is a cylinder, a square through hole is provided in the middle thereof, and a cylindrical first through hole, a second through hole, a third through hole and a fourth through hole are provided on the upper, lower, left and right sides of the square through hole, respectively; the imaging portion is provided on the inner side of the first through hole, the lighting portion is provided on the inner side of the second through hole, the liquid injection portion is provided on the inner side of the third through hole, the suction portion is provided on the inner side of the fourth through hole, and the sampling portion is provided on the inner side of the square through hole;

[0007] The adapter is a hollow cylinder, the inner diameter of which is larger than the outer diameter of the front end receiving portion; a hollow ring and a support arm are arranged inside the adapter, and the hollow ring is fixedly connected to the inner wall of the adapter through the support arms arranged on both sides;

[0008] The front end of the adapter is fixedly sleeved with the front end accommodating portion, and the rear end of the adapter is fixedly sleeved with the protective sleeve; the driving portion is fixedly arranged inside the hollow ring, and the driving rod of the driving portion is connected to the sampling portion.

[0009] Optionally, the sampling part includes an end cap, a rectangular body, a conical head, a moving column, a flexible blade, an upper driving plate, a lower driving plate and a driving gear; the end cap is connected to the rectangular body; the conical head, the moving column, the upper driving plate, the lower driving plate and the driving gear are arranged inside the rectangular body; the conical head is arranged on the moving column; the moving column is connected to the upper driving plate and the lower driving plate through the driving gear;

[0010] The longitudinal cross-section of the end cap is arched, and its bottom surface is square; a sampling through hole is provided in the middle of the end cap; an upper arched groove and a lower arched groove are provided inside the end cap, and the curvature of the upper arched groove and the lower arched groove is the same as the curvature of the top surface of the end cap; the cross-sections of the upper arched groove and the lower arched groove are both rectangular, the upper arched groove extends from the upper side of the bottom surface of the end cap to the middle of the top surface of the end cap, and the lower arched groove extends from the lower side of the bottom surface of the end cap to the middle of the top surface of the end cap; the upper arched groove and the lower arched groove are connected on the top surface of the end cap; the flexible blade on the upper side can be slidably arranged on the inner side of the upper arched groove, and the flexible blade on the lower side can be slidably arranged on the inner side of the lower arched groove; the flexible blades are connected to the left sides of the upper driving plate and the lower driving plate;

[0011] The moving column can drive the conical head, the upper driving plate and the lower driving plate to move;

[0012] The moving column drives the conical head to extend out of the end cap along the sampling through hole. At this time, the upper driving plate and the lower driving plate are close to the right side of the rectangular body, and the upper and lower flexible blades are retracted into the interior of the rectangular body, and the sampling through hole is in an open state;

[0013] The movable column drives the conical head to retract the end cap along the sampling through hole. At this time, the upper driving plate and the lower driving plate are close to the left side of the rectangular body, and the flexible blades on the upper and lower sides enter the sampling through hole along the arched groove, and the sampling through hole is in a closed state.

[0014] Optionally, a driving through hole is provided in the middle of the rectangular body, and an upper rectangular guide hole and a lower rectangular guide hole of the same size are symmetrically provided on the upper and lower sides of the driving through hole; gear holes are provided between the upper rectangular guide hole and the driving through hole, and between the lower rectangular guide hole and the driving through hole, and the gear holes on the upper and lower sides are symmetrically provided, and the gear holes are through holes; a gear groove is provided inside the gear hole, and the terminals on both sides of the driving gear are provided in the gear groove; the driving gear does not contact the gear hole; and limiting sliding grooves of the same size are symmetrically provided on the left and right sides of the driving through hole.

[0015] Optionally, the movable column is a cylinder, the movable column and the driving through hole are gap-matched, and the movable column can be slidably arranged on the inner side of the driving through hole; the upper and lower sides of the movable column are provided with a first straight tooth; the left and right sides of the movable column are provided with a limiting slider, and the limiting slider and the limiting slide groove are gap-matched; the bottom of the movable column is provided with a driving hole; the top of the movable column is provided with the conical head, and a connecting thin rod is provided between the conical head and the movable column.

[0016] Optionally, the driving through hole and the sampling through hole have the same size and are concentrically arranged; the upper rectangular guide hole corresponds to the position of the upper arched groove, and the lower rectangular guide hole corresponds to the position of the lower arched groove.

[0017] Optionally, the upper driving plate and the lower driving plate are rectangular plates of the same size, and the inner sides of the upper driving plate and the lower driving plate are both provided with second straight teeth; the upper driving plate can be slidably disposed on the inner side of the upper rectangular guide hole, and the lower driving plate can be slidably disposed on the inner side of the lower rectangular guide hole;

[0018] The upper driving gear is meshed and connected with the second spur teeth on the upper side and the first spur teeth on the upper side respectively; the lower driving gear is meshed and connected with the second spur teeth on the lower side and the first spur teeth on the lower side respectively.

[0019] Optionally, the imaging unit includes a cylindrical probe, a guide and a slot; a collimator and a sampling optical fiber are fixedly arranged inside the cylindrical probe; the guide is a rectangular parallelepiped, which is located at the lower right side of the cylindrical probe; the guide is provided with the slot;

[0020] A guide slot matching the guide member is provided on the upper right side of the rectangular body; a card block is provided on the upper side of the upper driving plate; the card block passes through the guide slot and is matched and connected with the card slot; the upper driving plate can drive the imaging part to move inward or outward.

[0021] Optionally, the driving rod is connected to the driving hole in the movable column; the driving unit drives the movable column to perform telescopic movement via the driving rod.

[0022] Compared with the prior art, the present invention has achieved the following technical effects:

[0023] 1. The endoscopic device with imaging and sampling functions can obtain multiple samples with one entry, which improves the convenience of the sampling process. This greatly reduces the need for medical staff to repeat operations and improves the convenience and efficiency of sampling. The flexible blade isolates the sample from the external environment and reduces the contact with pollutants such as body fluids, thereby ensuring the cleanliness of the sample and improving the accuracy of the test results.

[0024] 2. The ingenious combination of the imaging part and the sampling part enables the cylindrical probe to move backward when the upper driving plate moves, thereby expanding the field of view and the user's monitoring range of the sampling point. This helps medical staff to observe the patient's internal conditions more clearly, improves the precision and accuracy of sampling, and provides convenient conditions for sampling.

[0025] 3. The overall structure of the endoscope device is compact, and the various components work together, making it easy to operate. The setting of the adapter, the front end receiving part and the protective sleeve ensures the stability and durability of the endoscope device. The driving part achieves precise control of the sampling part through the connection between the driving rod and the moving column, making the sampling process more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic structural diagram of an endoscope device with imaging and sampling functions provided by one embodiment of the present invention;

[0027] Figure 2 A schematic diagram of an exploded structure of an endoscope device with imaging and sampling functions provided by one embodiment of the present invention;

[0028] Figure 3 A schematic structural diagram of a front end accommodation portion in an endoscope device with imaging and sampling functions provided by one embodiment of the present invention;

[0029] Figure 4 A schematic structural diagram of an adapter in an endoscope device with imaging and sampling functions provided by one embodiment of the present invention;

[0030] Figure 5 A schematic diagram of the structure of an imaging unit in an endoscope device with imaging and sampling functions provided by one embodiment of the present invention;

[0031] Figure 6 A schematic diagram of the structure of a sampling portion in an endoscope device with imaging and sampling functions provided by one embodiment of the present invention;

[0032] Figure 7 A schematic diagram of the structure of an end cap in an endoscope device with imaging and sampling functions provided by one embodiment of the present invention;

[0033] Figure 8 A schematic structural diagram of a rectangular main body in an endoscope device with imaging and sampling functions provided by one embodiment of the present invention;

[0034] Fig. 9 A schematic structural diagram of a conical head and a moving column in an endoscope device with imaging and sampling functions provided by one embodiment of the present invention;

[0035] Fig.10A schematic structural diagram of a one-way blocking ring in an endoscope device with imaging and sampling functions provided by one embodiment of the present invention;

[0036] Fig.11 A schematic diagram of the structure of a sampling portion of an endoscope device with imaging and sampling functions before and after sampling provided by one embodiment of the present invention;

[0037] Fig.12 A schematic diagram of the structure of a sampling part and an imaging part in an endoscope device with imaging and sampling functions before and after sampling provided by one embodiment of the present invention;

[0038] Fig.13 A schematic diagram of the structure of an endoscope device with imaging and sampling functions in an initial state and a sampling state provided by one embodiment of the present invention;

[0039] Fig.14 A schematic structural diagram of an end cap and a rectangular body in an example of an endoscope device with imaging and sampling functions provided in one embodiment of the present invention.

[0040] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0042] like Figure 1-Figure 14 As shown, an embodiment of the present invention provides an endoscope device with imaging and sampling functions, including: a front end accommodating portion 1, an adapter 2, an imaging portion 3, a sampling portion 4, a driving portion 5, an illumination portion 6, a liquid injection portion 7, a suction portion 8 and a protective sleeve 9;

[0043] like Figure 3 As shown, the front end accommodating portion 1 is a cylinder, in which a square through hole 11 is opened in the middle, and a cylindrical first through hole 12, a second through hole 13, a third through hole 14 and a fourth through hole 15 are opened on the top, bottom, left and right of the square through hole 11 respectively; the imaging portion 3 is arranged on the inner side of the first through hole 12, the lighting portion 6 is arranged on the inner side of the second through hole 13, the liquid injection portion 7 is arranged on the inner side of the third through hole 14, the suction portion 8 is arranged on the inner side of the fourth through hole 15, and the sampling portion 4 is arranged on the inner side of the square through hole 11.

[0044] like Figure 4 As shown, the adapter 2 is a hollow cylinder, and its inner diameter is larger than the outer diameter of the front end receiving portion 1; a hollow ring 21 and a support arm 22 are arranged inside the adapter 2, and the hollow ring 21 is fixedly connected to the inner wall of the adapter 2 through the support arms 22 arranged on both sides;

[0045] The front end of the adapter 2 is fixedly sleeved on the front end accommodating portion 1 , and the rear end of the adapter 2 is fixedly sleeved on the protective sleeve 9 ; the driving portion 5 is fixedly arranged inside the hollow ring 21 , and the driving rod 51 of the driving portion 5 is connected to the sampling portion 4 .

[0046] In the embodiment of the present invention, the stability and durability of the endoscope device are ensured by the arrangement of the adapter, the front end accommodation portion and the protective sleeve.

[0047] Optionally, in some embodiments, Figure 6 As shown, the sampling portion 4 includes an end cap 41, a rectangular body 42, a conical head 43, a moving column 44, a flexible blade 45, an upper drive plate 46, a lower drive plate 47 and a drive gear 48; the end cap 41 is connected to the rectangular body 42; the conical head 43, the moving column 44, the upper drive plate 46, the lower drive plate 47 and the drive gear 48 are arranged inside the rectangular body 42; the conical head 43 is arranged on the moving column 44; the moving column 44 is connected to the upper drive plate 46 and the lower drive plate 47 through the drive gear 48.

[0048] In the above embodiment, the coordinated work of the moving column, the upper driving plate, the lower driving plate and the flexible blade in the sampling part realizes the accurate acquisition and isolation of the sample, avoiding the limitation of the traditional sampling forceps that can only sample once.

[0049] like Figure 7As shown, the longitudinal cross-section of the end cap 41 is arched, and its bottom surface is square; a sampling through hole 411 is provided in the middle of the end cap 41; an upper arched groove 412 and a lower arched groove 413 are provided inside the end cap 41, and the curvature of the upper arched groove 412 and the lower arched groove 413 is the same as the curvature of the top surface of the end cap 41; the cross-sections of the upper arched groove 412 and the lower arched groove 413 are both rectangular, and the upper arched groove 412 extends from the upper side of the bottom surface of the end cap 41 to the middle of the top surface of the end cap 41, and the lower arched groove 413 extends from the lower side of the bottom surface of the end cap 41 to the middle of the top surface of the end cap 41; the upper arched groove 412 and the lower arched groove 413 are both rectangular. 12 is connected with the lower arched groove 413 on the top surface of the end cap 41; the upper flexible blade 45 is slidably arranged inside the upper arched groove 412, and the lower flexible blade 45 is slidably arranged inside the lower arched groove 413. The flexible blade can slide along the arched groove and enter the sampling through hole to seal the sample when needed, which not only ensures the isolation of the sample, but also avoids the contamination of the sample during the removal process; the upper driving plate 46 and the left side of the lower driving plate 47 are connected with the flexible blade 45; the moving column 44 can drive the conical head 43, the upper driving plate 46 and the lower driving plate 47 to move. The flexible blade can isolate the sample from the external environment during the sampling process, reduce the contact of pollutants such as body fluids, and thus ensure the cleanliness of the sample.

[0050] The moving column 44 drives the conical head 43 to extend out of the end cap 41 along the sampling through hole 411. At this time, the upper driving plate 46 and the lower driving plate 47 are close to the right side of the rectangular body 42, and the upper and lower flexible blades 45 are retracted into the interior of the rectangular body 42, and the sampling through hole 411 is in an open state;

[0051] The movable column 44 drives the conical head 43 to retract into the end cap 41 along the sampling hole 411. At this time, the upper driving plate 46 and the lower driving plate 47 are close to the left side of the rectangular body 42, and the flexible blades 45 on the upper and lower sides enter the sampling hole 411 along the arched groove, and the sampling hole 411 is in a closed state.

[0052] Optionally, in some embodiments, Figure 8As shown, a driving through hole 421 is provided in the middle of the rectangular main body 42, and an upper rectangular guide hole 422 and a lower rectangular guide hole 423 of the same size are symmetrically provided on the upper and lower sides of the driving through hole 421; a gear hole 424 is provided between the upper rectangular guide hole 422 and the driving through hole 421, and between the lower rectangular guide hole 423 and the driving through hole 421, and the gear holes 424 on the upper and lower sides are symmetrically arranged, and the gear holes 424 are through holes; a gear groove 424 is provided inside the gear hole 424, and the terminals on both sides of the driving gear 48 are arranged in the gear groove 424; the driving gear 48 does not contact the gear hole 424; and limiting sliding grooves 426 of the same size are symmetrically provided on the left and right sides of the driving through hole 421.

[0053] Optionally, in some embodiments, Fig. 9 As shown, the moving column 44 is a cylinder, and the moving column 44 and the driving through hole 421 are clearance-matched, and the moving column 44 can be slidably arranged on the inner side of the driving through hole 421; the upper and lower sides of the moving column 44 are provided with a first straight tooth 441; the left and right sides of the moving column 44 are provided with a limiting slider 442, and the limiting slider 442 is clearance-matched with the limiting slide groove 426; the bottom of the moving column 44 is provided with a driving hole 443; the top of the moving column 44 is provided with the conical head 43, and a connecting thin rod 431 is provided between the conical head 43 and the moving column 44.

[0054] Optionally, in some embodiments, the driving through hole 421 is the same size as the sampling through hole 411 and is concentrically arranged; the upper rectangular guide hole 422 corresponds to the position of the upper arched groove 412 , and the lower rectangular guide hole 423 corresponds to the position of the lower arched groove 413 .

[0055] Optionally, in some embodiments, the upper driving plate 46 and the lower driving plate 47 are rectangular plates of the same size, and the upper driving plate 46 and the lower driving plate 47 are both provided with second spur teeth on their inner sides; the upper driving plate 46 can be slidably arranged inside the upper rectangular guide hole 422, and the lower driving plate 47 can be slidably arranged inside the lower rectangular guide hole 423; the driving gear 48 on the upper side is respectively meshed and connected with the second spur teeth on the upper side and the first spur teeth 441 on the upper side; the driving gear 48 on the lower side is respectively meshed and connected with the second spur teeth on the lower side and the first spur teeth 441 on the lower side. The meshing connection between the first spur teeth on the moving column and the driving gear, and the meshing connection between the second spur teeth on the upper and lower driving plates and the driving gear, realize the synchronous movement of the moving column and the upper and lower driving plates, which is the key to realize multiple sampling and sample isolation.

[0056] Optionally, in some embodiments, a barb is provided at the tail of the conical head 43 .

[0057] Optionally, in some embodiments, Fig.10 As shown, a one-way blocking ring 49 is arranged inside the sampling hole 411. The inward-facing side of the one-way blocking ring 49 is a smooth surface, and the outward-blocking side is a frosted surface. The frosted surface of the one-way blocking ring can prevent the sample from protruding outward. The design of the one-way blocking ring can prevent the sample from being contaminated and lost during the removal process, thereby improving the integrity and accuracy of the sample.

[0058] Optionally, in some embodiments, Figure 5 As shown, the imaging unit 3 includes a cylindrical probe 31, a guide 32 and a slot 33; a collimator and a sampling optical fiber are fixedly arranged inside the cylindrical probe 31; the guide 32 is a rectangular parallelepiped, which is located at the lower right side of the cylindrical probe 31; the slot 33 is arranged on the guide 32;

[0059] A guide slot 427 matching the guide member 32 is provided on the upper right side of the rectangular main body 42; a card block is provided on the upper side of the upper driving plate 46; the card block passes through the guide slot 427 and is matched and connected with the card slot 33; the upper driving plate 46 can drive the imaging part 3 to move inward or outward.

[0060] Optionally, in some embodiments, the driving rod 51 is connected to the driving hole 443 in the movable column 44; the driving unit 5 drives the movable column 44 to perform telescopic movement via the driving rod 51; illustratively, the driving unit 5 is a hydraulic driving unit.

[0061] Optionally, in some embodiments, the lighting unit 6 includes a cylindrical LED lamp holder and a wire.

[0062] Optionally, in some embodiments, the injection part 7 and the suction part 8 are both hollow straws; the injection part 7 is connected to an external injection pump for injecting therapeutic fluid into the patient's body; the suction part 8 is connected to an external suction pump for extracting body fluids from the patient.

[0063] Optionally, in some embodiments, the end cap 41 and the rectangular body 42 are composed of a left part and a right part or an upper part and a lower part, and are fixed by bonding, screws, etc.

[0064] Optionally, in some embodiments, the imaging unit 3, the driving unit 5, the lighting unit 6, the injection unit 7, and the suction unit 8 are all connected to an external control device to complete tasks such as collecting images of the patient's body, sampling drive, lighting control, suction, injection, etc.

[0065] Working principle of endoscopic device with imaging and sampling function:

[0066] 1. Sampling process: When sampling, the moving column 44 is driven forward by the driving rod 51. At this time, the upper driving plate 46 and the lower driving plate 47 move backward, driving the flexible blade 45 to retract into the arched grooves 412 and 413, and the conical head 43 extends out of the end cap 41 and pierces the sample 1; after the sampling is completed, the moving column 44 is driven backward by the driving rod 51. At this time, the upper driving plate 46 and the lower driving plate 47 move forward, driving the flexible blade 45 to enter the arched grooves 412 and 413, and the conical head 43 carries the sample 1 to retract into the end cap 41, and the flexible blades 45 on the upper and lower sides contact and close, cutting off the sample 1; when sampling again, the one-way blocking ring 49 prevents the sample 1 from protruding outward, and the sample 2 pushes the sample 1 into a deeper position of the connecting thin rod 431. Through the above structure, multiple sampling at different positions can be achieved, which provides convenience for doctors to detect different positions.

[0067] 2. Process of expanding the field of view: When sampling, the upper driving plate 46 drives the cylindrical probe 31 to move backward, expanding the field of view, expanding the user's monitoring range of the sampling location, and providing convenient conditions for sampling. After the sampling is completed, the upper driving plate 46 drives the cylindrical probe 31 to move forward and reset.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. An endoscopic device with imaging and sampling functions, comprising: A front end receiving portion, an adapter, an imaging portion, a sampling portion, a driving portion, an illumination portion, a liquid injection portion, a suction portion, and a protective sleeve; The front end receiving portion is a cylinder, a square through hole is provided in the middle thereof, and a cylindrical first through hole, a second through hole, a third through hole and a fourth through hole are provided on the upper, lower, left and right sides of the square through hole, respectively; the imaging portion is provided on the inner side of the first through hole, the lighting portion is provided on the inner side of the second through hole, the liquid injection portion is provided on the inner side of the third through hole, the suction portion is provided on the inner side of the fourth through hole, and the sampling portion is provided on the inner side of the square through hole; The adapter is a hollow cylinder, the inner diameter of which is larger than the outer diameter of the front end receiving portion; a hollow ring and a support arm are arranged inside the adapter, and the hollow ring is fixedly connected to the inner wall of the adapter through the support arms arranged on both sides; The front end of the adapter is fixedly sleeved with the front end accommodating portion, and the rear end of the adapter is fixedly sleeved with the protective sleeve; the driving portion is fixedly arranged inside the hollow ring, and the driving rod of the driving portion is connected to the sampling portion.

2. The endoscopic device according to claim 1, characterized in that: in, The sampling part includes an end cap, a rectangular body, a conical head, a moving column, a flexible blade, an upper driving plate, a lower driving plate and a driving gear; the end cap is connected to the rectangular body; the conical head, the moving column, the upper driving plate, the lower driving plate and the driving gear are arranged inside the rectangular body; the conical head is arranged on the moving column; the moving column is connected to the upper driving plate and the lower driving plate through the driving gear; The longitudinal cross-section of the end cap is arched, and its bottom surface is square; a sampling through hole is provided in the middle of the end cap; an upper arched groove and a lower arched groove are provided inside the end cap, and the curvature of the upper arched groove and the lower arched groove is the same as the curvature of the top surface of the end cap; the cross-sections of the upper arched groove and the lower arched groove are both rectangular, the upper arched groove extends from the upper side of the bottom surface of the end cap to the middle of the top surface of the end cap, and the lower arched groove extends from the lower side of the bottom surface of the end cap to the middle of the top surface of the end cap; the upper arched groove and the lower arched groove are connected on the top surface of the end cap; the flexible blade on the upper side can be slidably arranged on the inner side of the upper arched groove, and the flexible blade on the lower side can be slidably arranged on the inner side of the lower arched groove; the flexible blades are connected to the left sides of the upper driving plate and the lower driving plate; The moving column can drive the conical head, the upper driving plate and the lower driving plate to move; The moving column drives the conical head to extend out of the end cap along the sampling through hole. At this time, the upper driving plate and the lower driving plate are close to the right side of the rectangular body, and the upper and lower flexible blades are retracted into the interior of the rectangular body, and the sampling through hole is in an open state; The movable column drives the conical head to retract the end cap along the sampling through hole. At this time, the upper driving plate and the lower driving plate are close to the left side of the rectangular body, and the flexible blades on the upper and lower sides enter the sampling through hole along the arched groove, and the sampling through hole is in a closed state.

3. The endoscopic device according to claim 2, characterized in that: in, A driving through hole is provided in the middle of the rectangular main body, and an upper rectangular guide hole and a lower rectangular guide hole of the same size are symmetrically provided on the upper and lower sides of the driving through hole; a gear hole is provided between the upper rectangular guide hole and the driving through hole, and between the lower rectangular guide hole and the driving through hole, and the gear holes on the upper and lower sides are symmetrically arranged, and the gear holes are through holes; a gear groove is provided inside the gear hole, and the terminals on both sides of the driving gear are arranged in the gear groove; the driving gear does not contact the gear hole; and limiting sliding grooves of the same size are symmetrically provided on the left and right sides of the driving through hole.

4. The endoscopic device according to claim 3, characterized in that: in, The movable column is a cylinder, and the movable column and the driving through hole are gap-matched, and the movable column can be slidably arranged on the inner side of the driving through hole; the upper and lower sides of the movable column are provided with first straight teeth; the left and right sides of the movable column are provided with limiting sliders, and the limiting slider and the limiting slide groove are gap-matched; the bottom of the movable column is provided with a driving hole; the top of the movable column is provided with the conical head, and a connecting thin rod is provided between the conical head and the movable column.

5. The endoscopic device according to claim 4, characterized in that: in, The driving through hole and the sampling through hole have the same size and are concentrically arranged; the upper rectangular guide hole corresponds to the position of the upper arched groove, and the lower rectangular guide hole corresponds to the position of the lower arched groove.

6. The endoscopic device according to claim 5, characterized in that: in, The upper driving plate and the lower driving plate are rectangular plates of the same size, and the inner sides of the upper driving plate and the lower driving plate are both provided with second straight teeth; the upper driving plate is slidably arranged on the inner side of the upper rectangular guide hole, and the lower driving plate is slidably arranged on the inner side of the lower rectangular guide hole; The upper driving gear is meshed and connected with the second spur teeth on the upper side and the first spur teeth on the upper side respectively; the lower driving gear is meshed and connected with the second spur teeth on the lower side and the first spur teeth on the lower side respectively.

7. The endoscopic device according to claim 6, characterized in that: in, The imaging unit includes a cylindrical probe, a guide and a slot; a collimator and a sampling optical fiber are fixedly arranged inside the cylindrical probe; the guide is a rectangular parallelepiped, which is located at the lower right side of the cylindrical probe; the slot is arranged on the guide; A guide slot matching the guide member is provided on the upper right side of the rectangular body; a card block is provided on the upper side of the upper driving plate; the card block passes through the guide slot and is matched and connected with the card slot; the upper driving plate can drive the imaging part to move inward or outward.

8. The endoscopic device according to claim 7, characterized in that: in, The driving rod is connected to the driving hole in the moving column; the driving part drives the moving column to perform telescopic movement via the driving rod.

Images