Non-contact intubation sampling device

Abstract

The invention discloses a non-contact intubation sampling device which comprises an endoscope handle, a cannula device is mounted on the endoscope handle, a fixing clamp and a guide nozzle are arranged on the cannula device, the endoscope handle is mounted on the fixing clamp, an endoscope tube is inserted into the guide nozzle, and the endoscope tube can control the guide nozzle to drive the endoscope tube to extend forwards or retreat; an isolation pipe sleeve is installed on the intubator, the two ends of the isolation pipe sleeve are arranged on the fixing clamp and the guide nozzle respectively, the pipe wall of the isolation pipe sleeve can be bent, folded and unfolded, and the endoscope pipe penetrates through the isolation pipe sleeve and penetrates out of the guide nozzle. According to the invention, the endoscopic tube is isolated, the intubation is electrically controlled, the endoscopic handle is fixed by arranging the intubation device, and the endoscopic tube is arranged in the retractable isolation tube sleeve on the intubation device in a penetrating manner, so that the end part of the endoscopic tube extends out of the guide nozzle fixed on the intubation device, and the endoscopic tube is electrically controlled to extend in and retreat; and the tube body of the endoscope tube which is always kept back is arranged in the isolation tube sleeve, so that the probability of mutual pollution between the endoscope tube and the outside is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a contactless intubation sampling device. Background Art

[0002] Intubation sampling is a commonly used method for examining abnormal tissues in the body during laparoscopic examinations, such as gastroenterological laparoscopy and gynecological laparoscopy. During the examination, the endoscope tube of the endoscope needs to be first inserted into the patient's body to detect abnormal tissues (such as polyp tissue, etc.), and then the length of the endoscope is adjusted according to the location of the abnormal tissue, so that the biopsy forceps can reach the abnormal tissue in the patient's body along the instrument channel of the endoscope to take samples.

[0003] At present, intubation sampling usually adopts handheld endoscope examination, that is, during the laparoscopic examination, the operator needs to hold the endoscope tube and the operating handle to perform the intubation operation. During the operation of the handheld endoscope, in order to enable it to examine finer parts inside the body, the endoscope tube needs to be repeatedly extended and retracted. During this process, body fluids will adhere to the retracted endoscope tube, causing the operator's gloves to easily adhere to such body fluids and contaminate the examination room after the operation. In addition, the endoscope tube with body fluids is more likely to adhere to pathogens in the outside air or on the operator's gloves, causing infection during insertion.

[0004] Therefore, the existing intubation sampling device operated by a handheld endoscope tube is difficult to isolate from the outside and needs to be operated by hand, which makes it easy for body fluids to adhere to the tube and contaminate the outside world, and makes it easier for external pathogens to adhere to and infect patients. Summary of the invention

[0005] The purpose of the present invention is to provide a contactless intubation sampling device to solve the technical problems in the prior art that the tube body is difficult to isolate from the outside and needs to be hand-held for operation, which makes it easy for body fluids to adhere to the outside and makes it easier for external pathogens to adhere and infect patients.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0007] A contactless intubation sampling device comprises an endoscope handle, the endoscope handle is provided with an endoscope tube and a jaw insertion port, the jaw insertion port is connected to an instrument channel inside the endoscope tube, so as to insert a biopsy forceps for sampling;

[0008] An intubator is detachably mounted on the endoscope handle, and the intubator is electrically connected to the endoscope handle after being mounted. The intubator has a fixing clamp and a guide nozzle, and the endoscope handle is detachably mounted on the fixing clamp. The endoscope tube is detachably inserted into the guide nozzle, and the endoscope tube can be connected to and control the guide nozzle to drive the endoscope tube to extend forward or retreat, so as to perform a contactless intubation operation;

[0009] Wherein, an isolation sleeve is installed on the intubation device, and two ends of the isolation sleeve are respectively placed on the fixing clamp and the guide nozzle, so that after the endoscope handle is installed on the fixing clamp, the endoscope tube passes through the isolation sleeve and out of the guide nozzle;

[0010] The tube wall of the isolation tube sleeve can be bent and expanded, so as to bend outward to accommodate the tube body of the endoscope tube when the endoscope tube is not extended into the body or recovered, and bend inward to shrink after the endoscope tube is extended, so as to always isolate the endoscope tube for contactless intubation sampling.

[0011] As a preferred solution of the present invention, the isolation pipe sleeve includes a front joint, a rear joint and a transparent hose;

[0012] The front joint is detachably mounted on the introducer and abutted coaxially with the guide nozzle, the rear joint is detachably mounted on the introducer and abutted coaxially with the fixing clamp, and the transparent hose is arranged between the front joint and the rear joint and can be contracted or expanded to isolate the endoscope tube inserted therein.

[0013] As a preferred solution of the present invention, a plurality of folds are formed on the tube wall of the transparent hose, and the plurality of folds are evenly distributed along the axis of the transparent hose, so that the transparent hose can be folded and contracted according to the folds.

[0014] As a preferred solution of the present invention, a plurality of segmented rings are arranged on the outer wall of the transparent hose, and the plurality of segmented rings are equidistantly distributed along the axis of the transparent hose;

[0015] The central inner wall of the segmented ring is fixed on the outer wall of the transparent hose, and the diameters of both ends of the segmented ring are larger than the diameter of the transparent hose, so that the transparent hose can be received in the segmented ring;

[0016] Wherein, after the transparent hose is completely received inside, the plurality of segmented rings abut against each other and form an arc shape, so as to limit excessive bending of the endoscope tube.

[0017] As a preferred solution of the present invention, a plurality of segmented springs are arranged inside the transparent hose, and the plurality of segmented springs are respectively located between the plurality of segmented rings, between the front joint and the segmented ring at the front end, and between the rear joint and the segmented ring at the rear end;

[0018] The elastic coefficient of the segmented spring gradually decreases from the middle part to the two ends, so that when the transparent hose between two adjacent segmented rings contracts, the two ends of the transparent hose are first retracted into the segmented rings.

[0019] As a preferred solution of the present invention, the fixing clamp comprises a clamping insert having a pipeline port for the endoscope tube to extend out and an insertion port for inserting the endoscope handle, and the rear joint is coaxial with the pipeline port and abuts against each other after being installed on the introducer;

[0020] A notch extending to the insertion port is arranged on the side wall of the insertion tube. After the endoscope handle is inserted into the insertion tube, the operating end thereof is inserted along the notch and exposed outside the notch.

[0021] As a preferred solution of the present invention, a socket is provided on the outer wall of the insert tube, and a plug is provided on the side wall of the endoscope handle. After the endoscope handle is inserted into the insert tube and locked, the plug is inserted into the socket to establish communication between the endoscope handle and the introducer.

[0022] As a preferred solution of the present invention, the guide nozzle comprises a shell, the shell has a guide channel inside, two driving wheels are rotatably arranged on both sides of the guide channel inside the shell, and after the endoscope tube is inserted into the guide channel inside the shell, the two driving wheels clamp the endoscope tube;

[0023] In which, the shell is fixed on the outer wall of the introducer, and one or two driving motors are arranged on the outside of the shell. The driving motor is connected to the axles of the two driving wheels through a transmission assembly, and the driving motor is turned on after the endoscope handle is installed to control the two driving wheels to rotate synchronously forward to push the endoscope tube forward or synchronously reverse to push the endoscope tube backward.

[0024] As a preferred solution of the present invention, one end of the shell away from the front connector extends forward to the outside of the introducer and forms an insertion end, and a limit shield is detachably installed on the outer wall of the insertion end, and the limit shield can be deformed under pressure to fit the skin of the insertion area for inspection.

[0025] As a preferred solution of the present invention, the inserter is also provided with a fixing frame, which is divided into a plurality of segment arms which are rotatably connected in sequence, and two adjacent segment arms can be locked or loosened to adjust the fixed position of the inserter, so that the inserter keeps the insertion end of the introducer in an inserted state and the limiting shield is close to the skin.

[0026] In order to solve the above technical problems, the present invention further provides the following technical solutions:

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The present invention adopts an isolation endoscope tube and an electrically controlled intubation method. An intubation device is provided to fix the endoscope handle, and the endoscope tube is passed through a retractable isolation tube sleeve provided on the intubation device, so that the end of the endoscope tube is extended from a guide nozzle fixed on the intubation device, so as to electrically control the extension and retraction of the endoscope tube, and always keep the body of the retracted endoscope tube in the isolation tube sleeve, thereby effectively reducing the probability of mutual contamination between the endoscope tube and the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0030] Figure 1 A schematic diagram of the structure of a contactless intubation sampling device provided in an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of the structure of the isolation tube sleeve portion of the contactless intubation sampling device provided in an embodiment of the present invention;

[0032] Figure 3 A schematic diagram of the structure of a transparent hose portion of a contactless intubation sampling device provided in an embodiment of the present invention;

[0033] Figure 4 A schematic structural diagram of the nozzle portion of the contactless intubation sampling device provided in an embodiment of the present invention;

[0034] Figure 5 A schematic structural diagram of the fixing clamp portion of the contactless cannula sampling device provided in an embodiment of the present invention.

[0035] The numbers in the figure represent the following:

[0036] 1-Endoscope handle; 2-Introducer; 3-Isolation tube sleeve;

[0037] 11-endoscopic tube; 12-jaw plug; 13-plug; 21-fixing clip; 22-guide nozzle; 23-fixing frame; 31-front connector; 32-rear connector; 33-transparent hose;

[0038] 211-clamping insert; 212-pipeline port; 213-insertion port; 214-slot; 215-socket; 221-housing; 222-driving wheel; 223-insertion end; 224-limiting shield; 231-section arm; 331-fold; 332-section ring; 333-section spring. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] like Figure 1 As shown, the present invention provides a contactless intubation sampling device, comprising an endoscope handle 1, the endoscope handle 1 having an endoscope tube 11 and a jaw insertion port 12, the jaw insertion port 12 being connected to an instrument channel inside the endoscope tube 11 for inserting a biopsy forceps for sampling;

[0041] An intubator 2 is detachably mounted on the endoscope handle 1. The intubator 2 is electrically connected to the endoscope handle 1 after being mounted. The intubator 2 has a fixing clamp 21 and a guide nozzle 22. The endoscope handle 1 is detachably mounted on the fixing clamp 21. The endoscope tube 11 is detachably inserted into the guide nozzle 22. The endoscope tube 11 can be connected to and control the guide nozzle 22 to drive the endoscope tube 11 to extend forward or retreat, so as to perform a contactless intubation operation.

[0042] An isolation sleeve 3 is installed on the intubation device 2, and the two ends of the isolation sleeve 3 are respectively placed at the fixing clamp 21 and the guide nozzle 22, so that after the endoscope handle 1 is installed on the fixing clamp 21, the endoscope tube 11 passes through the isolation sleeve 3 and passes out from the guide nozzle 22;

[0043] The tube wall of the isolation tube sleeve 3 can be bent and expanded, so as to bend outward to accommodate the tube body of the endoscope tube 11 when the endoscope tube 11 is not extended into the body or retrieved, and bend inward to contract after the endoscope tube 11 is extended, so as to always isolate the endoscope tube 11 for contactless intubation sampling.

[0044] The contactless intubation sampling device of the present embodiment mainly utilizes the intubation device 2 to fix the endoscope handle 1, so that the endoscope tube 11 on the endoscope handle 1 can be inserted into the isolation tube sleeve 3 to be isolated from the outside, and inserted into the guide nozzle 22, and the endoscope handle 1 controls the guide nozzle 22 to extend the endoscope tube 11 forward or retract the endoscope tube 11, so that there is no need to hold the endoscope tube 11 for operation, and the tube body of the endoscope tube 11 is always protected by the isolation tube sleeve 3 during the extension or retraction process, so as to achieve the purpose of contactless operation of the endoscope tube 11 for intubation examination and insertion of biopsy forceps for sampling through the insertion jaws 12, reduce the probability of body fluids adhering to the endoscope tube 11 contaminating the inspection room environment and the inspection room environment contaminating the endoscope tube 11, causing its tube wall to easily adhere to bacteria and cause infection, that is, reduce the probability of mutual contamination between the endoscope tube 11 and the external environment.

[0045] Compared with the existing intubation sampling device, the contactless intubation sampling device of this embodiment can wrap and isolate the endoscope tube 11. During use, the endoscope handle 1 controls the guide nozzle 22 to operate the endoscope tube 11 to advance or retreat, so there is no need to hold the endoscope tube, thereby realizing contactless intubation sampling and reducing the probability of the endoscope tube 11 and the external environment being contaminated with each other due to frequent hand-held operations and long-term exposure to the external environment.

[0046] Of course, since the isolation tube sleeve 3 is detachably mounted on the cannula inserter 2, it can be directly removed and tilted after the sampling is completed, and the operation is also relatively convenient.

[0047] Based on the above embodiments, a preferred embodiment of an isolation sleeve 3 is provided below.

[0048] like Figure 1 , Figure 2 As shown, the isolation sleeve 3 includes a front connector 31, a rear connector 32 and a transparent hose 33;

[0049] The front joint 31 is detachably mounted on the introducer 2 and is coaxially abutted with the guide nozzle 22. The rear joint 32 is detachably mounted on the introducer 2 and is coaxially abutted with the fixing clamp 21. The transparent hose 33 is arranged between the front joint 31 and the rear joint 32 and can be contracted or expanded to isolate the endoscope tube 11 inserted therein.

[0050] Specifically, the front joint 31 abuts against the guide nozzle 22, and the rear joint 32 abuts against the fixing clamp 21. Before installing the endoscope handle 1 in the fixing clamp 21, the endoscope tube 11 needs to be inserted into the guide nozzle 22 along the isolation tube sleeve 3, so as to isolate and protect the entire endoscope tube 11.

[0051] At this time, the spacer sleeve 3 can be held by hand to perform operations such as straightening the endoscope tube 11.

[0052] Of course, although the transparent hose 33 can be compressed after being pressurized, there is irregular deformation during the compression process, which can easily affect the compression length and make it difficult for the endoscope tube 11 to extend to the maximum length. Based on this, the following preferred embodiments are provided.

[0053] like Figure 3 As shown, a plurality of folds 331 are formed on the tube wall of the transparent hose 33 , and the plurality of folds 331 are evenly distributed along the axis of the transparent hose 33 , so that the transparent hose 33 can be folded and contracted according to the folds 331 .

[0054] Specifically, by pre-setting a fold 331 on the tube wall of the transparent hose 33, the transparent hose 33 can be folded due to its low axial pressure bearing capacity at the fold 331 after being compressed. That is to say, the transparent hose 33 can be folded and contracted along the axial direction after being compressed, thereby avoiding irregular deformation and ensuring that the endoscope tube 11 can stably extend to the maximum length.

[0055] Since the transparent hose 3 has the function of isolating and storing the endoscope tube 11, that is, when the endoscope tube 11 is not inserted, most of the tube body of the endoscope tube 11 is placed in the transparent hose 3, then when the endoscope tube 11 is inserted, the endoscope tube 11 in the transparent hose 3 is gradually reduced to shrink the transparent hose 3. In this process, the continuously shrinking transparent hose 3 is easily compressed to the shortest, resulting in an excessively small angle between the transparent hose 3 and the front connector 31 or the rear connector 32, thereby causing the endoscope tube 11 to be excessively bent and easily damaged.

[0056] like Figure 3 As shown, a plurality of segmented rings 332 are provided on the outer wall of the transparent hose 33, and the plurality of segmented rings 332 are equidistantly distributed along the axis of the transparent hose 33;

[0057] The central inner wall of the segmented ring 332 is fixed to the outer wall of the transparent hose 33, and the diameters of both ends of the segmented ring 332 are larger than the diameter of the transparent hose 33, so that the transparent hose 33 can be received in the segmented ring 332;

[0058] After the transparent hose 33 is completely received inside, the plurality of segmented rings 332 abut against each other and form an arc shape, so as to limit excessive bending of the endoscope tube 11 .

[0059] Specifically, segmented rings 332 are provided on the outer wall of the transparent hose 33, so that after the transparent hose 33 between the multiple segmented rings 332 is contracted, two adjacent segmented rings 332 can abut against each other, thereby forming an arc-shaped channel after the multiple segmented rings 332 abut against each other, thereby limiting the endoscope tube 11 and preventing it from excessive bending.

[0060] In addition, during the shrinking process, the transparent hose 33 can shrink inside the segment ring 332 , thereby reducing the overall length of the isolation tube sleeve 3 after shrinking, and effectively increasing the extendable length of the endoscope tube 11 .

[0061] Of course, since the material of the transparent hose 33 is too soft, after repeated use and compression, excessive folds are likely to appear at the folds 331, and the folds are likely to be damaged, thereby affecting the life of the transparent hose 33. Based on this, the following preferred embodiments are provided.

[0062] like Figure 3As shown, a plurality of segmented springs 333 are arranged inside the transparent hose 33, and the plurality of segmented springs 333 are respectively located between the plurality of segmented rings 332, between the front joint 31 and the segmented ring 332 at the front end, and between the rear joint 32 and the segmented ring 332 at the rear end;

[0063] The elastic coefficient of the segmented spring 333 gradually decreases from the middle portion to both ends, so that when the transparent hose 33 between two adjacent segmented rings 332 contracts, the two ends of the transparent hose 33 are first retracted into the segmented rings 332 .

[0064] Specifically, a segmented spring 333 is provided inside the transparent hose 33 to support the transparent hose 33, so that when the transparent hose 33 is compressed, the segmented spring 333 is compressed synchronously, and the elastic coefficient of the segmented spring 333 gradually decreases from the middle part to both ends. Therefore, when the transparent hose 33 between two adjacent segmented rings 332 is compressed, the transparent hose 33 located at the segmented ring 332 is first pressed into the interior thereof, so that the transparent hose 33 can be regularly compressed, thereby reducing the probability of wrinkles and increasing the service life.

[0065] Based on the above embodiments, a preferred embodiment of a fixing clip 21 is provided below.

[0066] like Figure 5 As shown, the fixing clamp 21 includes a clamping insert 211, and the clamping insert 211 has a pipeline port 212 for the endoscope tube 11 to extend out and an insertion port 213 for inserting the endoscope handle 1. After the rear connector 32 is installed on the introducer 2, it is coaxial with the pipeline port 212 and abuts against each other;

[0067] A notch 214 extending to the insertion port 213 is provided on the side wall of the insertion tube 211 . After the endoscope handle 1 is inserted into the insertion tube 211 , the operating end thereof is inserted along the notch 214 and exposed outside the notch 214 .

[0068] Specifically, the clamping insert 211 can be fixed after the endoscope handle 1 is inserted, and the fixing method can be a snap connection or an interference fit. After the endoscope handle 1 is inserted into the clamping insert 211, the operating end of the endoscope handle 1 (i.e., the knob operating part) is exposed outside the slot 214, which does not affect the endoscope handle 1 controlling the end movement of the endoscope tube 11.

[0069] Of course, when the clamping insert 211 is inserted into the endoscope handle 1, it is necessary to establish a connection between the endoscope handle 1 and the guide nozzle 22 to control the guide nozzle 22 to drive the endoscope tube 11 to extend or retreat. Based on this, the following preferred embodiments are provided.

[0070] like Figure 5As shown, a socket 215 is provided on the outer wall of the insert tube 211, and a plug 13 is provided on the side wall of the endoscope handle 1. After the endoscope handle 1 is inserted into the insert tube 211 and locked and installed, the plug 13 is inserted into the socket 215 to establish communication between the endoscope handle 1 and the introducer 2.

[0071] Specifically, by setting a socket 215 on the outside of the insert tube 211 and setting a plug 13 on the side wall of the endoscope handle 1, after the endoscope handle 1 is fully inserted into the insert tube 211, the plug 13 is fully inserted into the socket 215 and is turned on, so that the endoscope handle 1 can control the guide nozzle 22.

[0072] Based on the above embodiments, a preferred embodiment of the guide nozzle 22 is provided below.

[0073] like Figure 4 As shown, the guide nozzle 22 includes a shell 221, and the shell 221 has a guide channel inside. Two driving wheels 222 are rotatably arranged on both sides of the guide channel inside the shell 221. After the endoscope tube 11 is inserted into the guide channel inside the shell 221, the two driving wheels 222 clamp the endoscope tube 11;

[0074] Among them, the shell 221 is fixed on the outer wall of the introducer 2, and one or two driving motors are arranged on the outside of the shell 221. The driving motor is connected to the axles of the two driving wheels 222 through a transmission assembly, and the driving motor is turned on after the endoscope handle 1 is installed to control the two driving wheels 222 to rotate synchronously forward to push the endoscope tube 11 forward or synchronously reverse to push the endoscope tube 11 backward.

[0075] Specifically, the two driving wheels 222 clamp the endoscope tube 11 inserted into the shell 221, and the driving motors of the two driving wheels 222 are controlled by the inner diameter handle 1, so that the forward or backward length of the endoscope tube 11 can be accurately controlled to achieve the function of completing the intubation operation without holding the endoscope tube.

[0076] Of course, in order to facilitate the accurate insertion of the endoscope tube 11 into the body through the guide nozzle 22, the following preferred embodiments are provided.

[0077] like Figure 4 As shown, one end of the shell 221 away from the front connector 31 extends forward to the outside of the introducer 2 and forms an insertion end 223. A limit shield 224 is detachably installed on the outer wall of the insertion end 223. The limit shield 224 can be deformed under pressure to fit the skin of the insertion area for inspection.

[0078] Specifically, the front end of the shell 221 is extended to form an insertion end 223. Before the endoscope tube 11 is inserted, the insertion end 223 is first inserted into the body. Since the insertion end 223 is made of a hard and non-deformable material, it is easier to control the accurate insertion, so that the endoscope tube 11 can be accurately introduced into the body along the insertion end 223 by the driving wheel 222.

[0079] Of course, in order to further facilitate the intubation operation and ensure that the endoscope tube 11 is stably inserted into the body, the following preferred embodiments are provided.

[0080] like Figure 1 As shown, the inserter 2 also has a fixing frame 23, which is divided into a plurality of segment arms 231 that are rotatably connected in sequence, and two adjacent segment arms 231 can be locked or loosened to adjust the fixed position of the inserter 2, so that the inserter 2 keeps the insertion end 223 of the inserter 2 in an inserted state and the limiting shield 224 is close to the skin.

[0081] Specifically, the fixing frame 23 of the inserter 2 is composed of a plurality of segment arms 231, and any angle rotation adjustment within a certain range is provided between two adjacent segment arms 231. The plurality of segment arms 231 cooperate to form multi-angle adjustment, so that the inserter 2 can be fixed after the insertion end 223 is inserted into the body, thereby keeping the inserter 2 stable for the intubation operation.

[0082] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A contactless intubation sampling device, characterized in that: The endoscope handle (1) comprises an endoscope tube (11) and a jaw insertion opening (12), wherein the jaw insertion opening (12) is connected to an instrument channel inside the endoscope tube (11) so as to insert a biopsy forceps for sampling; An intubator (2) is detachably mounted on the endoscope handle (1), and the intubator (2) is electrically connected to the endoscope handle (1) after being mounted. The intubator (2) is provided with a fixing clamp (21) and a guide nozzle (22), and the endoscope handle (1) is detachably mounted on the fixing clamp (21). The endoscope tube (11) is detachably inserted into the guide nozzle (22), and the endoscope tube (11) can be connected to and control the guide nozzle (22) to drive the endoscope tube (11) to extend forward or retract, so as to perform a contactless intubation operation; Wherein, an isolation sleeve (3) is installed on the intubation device (2), and two ends of the isolation sleeve (3) are respectively placed on the fixing clamp (21) and the guide nozzle (22), so that after the endoscope handle (1) is installed on the fixing clamp (21), the endoscope tube (11) passes through the isolation sleeve (3) and passes out of the guide nozzle (22); The tube wall of the isolation tube sleeve (3) can be bent and expanded, so as to bend outwards to accommodate the tube body of the endoscope tube (11) when the endoscope tube (11) is not extended into the body or retracted, and bend inwards to bend and shrink after the endoscope tube (11) is extended, so as to always isolate the endoscope tube (11) for contactless intubation sampling.

2. A contactless cannula sampling device according to claim 1, characterized in that: The isolation pipe sleeve (3) comprises a front joint (31), a rear joint (32) and a transparent hose (33); The front joint (31) is detachably mounted on the intubating device (2) and is coaxially abutted with the guide nozzle (22); the rear joint (32) is detachably mounted on the intubating device (2) and is coaxially abutted with the fixing clamp (21); the transparent hose (33) is arranged between the front joint (31) and the rear joint (32) and can be contracted or expanded to isolate the endoscope tube (11) inserted therein.

3. A contactless cannula sampling device according to claim 2, characterized in that: A plurality of folds (331) are formed on the tube wall of the transparent hose (33), and the plurality of folds (331) are evenly distributed along the axis of the transparent hose (33), so that the transparent hose (33) can be folded and contracted according to the folds (331).

4. A contactless cannula sampling device according to claim 3, characterized in that: A plurality of segmented rings (332) are arranged on the outer wall of the transparent hose (33), and the plurality of segmented rings (332) are distributed at equal distances along the axis of the transparent hose (33); The central inner wall of the segmented ring (332) is fixed to the outer wall of the transparent hose (33), and the diameters of both ends of the segmented ring (332) are larger than the diameter of the transparent hose (33), so that the transparent hose (33) can be received in the segmented ring (332); Wherein, after the transparent hose (33) is completely retracted inside, the plurality of segmented rings (332) abut against each other and form an arc shape, so as to limit excessive bending of the endoscope tube (11).

5. A contactless cannula sampling device according to claim 4, characterized in that: A plurality of segmented springs (333) are arranged inside the transparent hose (33), and the plurality of segmented springs (333) are respectively located between the plurality of segmented rings (332), between the front joint (31) and the segmented ring (332) at the front end, and between the rear joint (32) and the segmented ring (332) at the rear end; The elastic coefficient of the segmented spring (333) gradually decreases from the middle part to the two ends, so that when the transparent hose (33) between two adjacent segmented rings (332) contracts, it is first retracted into the segmented rings (332) from both ends.

6. The contactless cannula sampling device according to claim 2, characterized in that: The fixing clamp (21) comprises a clamping insert (211), the clamping insert (211) having a pipeline port (212) for the endoscope tube (11) to extend out and an insertion port (213) for inserting the endoscope handle (1), and after the rear connector (32) is installed on the intubating device (2), it is coaxial with the pipeline port (212) and abuts against each other; A notch (214) extending to the insertion port (213) is provided on the side wall of the insertion tube (211); after the endoscope handle (1) is inserted into the insertion tube (211), its operating end is inserted along the notch (214) and exposed outside the notch (214).

7. A contactless cannula sampling device according to claim 6, characterized in that: A socket (215) is provided on the outer wall of the insert tube (211), and a plug (13) is provided on the side wall of the endoscope handle (1). After the endoscope handle (1) is inserted into the insert tube (211) and locked and installed, the plug (13) is inserted into the socket (215) to establish communication between the endoscope handle (1) and the introducer (2).

8. The contactless cannula sampling device according to claim 2, characterized in that: The guide nozzle (22) comprises a shell (221), the shell (221) has a guide channel inside, two driving wheels (222) are rotatably arranged on both sides of the guide channel inside the shell (221), and after the endoscope tube (11) is inserted into the guide channel inside the shell (221), the two driving wheels (222) clamp the endoscope tube (11); The shell (221) is fixed on the outer wall of the introducer (2), and one or two driving motors are arranged outside the shell (221). The driving motor is connected to the axles of the two driving wheels (222) through a transmission component, and the driving motor is turned on after the endoscope handle (1) is installed to control the two driving wheels (222) to rotate synchronously forward to push the endoscope tube (11) forward or to rotate synchronously reversely to push the endoscope tube (11) backward.

9. The contactless cannula sampling device according to claim 8, characterized in that: One end of the shell (221) away from the front connector (31) extends forward to the outside of the introducer (2) and forms an insertion end (223). A limit shield (224) is detachably mounted on the outer wall of the insertion end (223). The limit shield (224) can be deformed under pressure to fit the skin of the insertion area for inspection.

10. The contactless cannula sampling device according to claim 9, characterized in that: The inserter (2) also has a fixing frame (23), which is divided into a plurality of segment arms (231) that are rotatably connected in sequence, and two adjacent segment arms (231) can be locked or loosened to adjust the fixed position of the inserter (2), so that the inserter (2) keeps the insertion end (223) of the cannula inserter (2) in an inserted state and the limiting shield (224) is in close contact with the skin.

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