Gastroscopy auxiliary device

Abstract

The invention relates to the technical field of gastroscope medical treatment, and discloses a gastroscopy auxiliary device which comprises a gastroscope tube and a mouth expanding block arranged in the middle of the gastroscope tube in a surrounding mode, an expanding piece is arranged at the bottom of the gastroscope tube in a surrounding mode and used for expanding an oral cavity, and a connecting piece is arranged at the bottom of the mouth expanding block. The two bayonet pieces are arranged in the middle of the interior of the mouth expanding block, teeth are fixed through the bayonet pieces, the human teeth are prevented from moving autonomously, then the auxiliary device is prevented from shaking in the oral cavity of the human body, meanwhile, the bayonet pieces can guarantee that the teeth abut against the plane, the teeth are prevented from driving the mouth expanding block to rotate, and the tooth expanding effect is improved. The safety of gastroscopy is guaranteed, the gastroscope tube is prevented from being moved in the oral cavity, the oral cavity is expanded through the flaring piece, the gastroscope is prevented from abutting against the oral cavity at an inlet, the risk that the gastroscope moves to damage the oral cavity due to movement of the gastroscope is avoided, and meanwhile the connecting piece is connected with the expanding piece, so that the safety of gastroscopy is improved. And the possibility of excessive expansion of the oral cavity is avoided through flaring.

Description

Technical Field

[0001] The present invention belongs to the technical field of gastroscopic medical treatment, and in particular relates to a gastroscopic examination auxiliary device. Background Art

[0002] Gastroscopy is an examination method that uses an endoscope introduced through the mouth to observe lesions in the esophagus, stomach, and duodenum in turn. Auxiliary devices for gastroscopy play an important role in the gastroscopy process. They help doctors better observe the patient's digestive tract and improve the accuracy and safety of the examination.

[0003] For example, the Chinese patent announced as CN214048759U, entitled "A Gastroscopy Auxiliary Device", includes a support ring plate, a telescopic spring, a flaring support block, a connecting support block, a gastroscopy tube fixing assembly, a gastroscopy tube body, a fixing strap, a strap fixing buckle, a strap limit block, a head support plate, an infusion tube support, an analgesic infusion tube, a suction pump, a medicine storage barrel, a transparent observation plate and an injection tube. The gastroscopy tube fixing assembly includes a fixing support block, a slide groove, a slider, a movable splint, a rotating screw and a rotating handle, which effectively solves the problems of the current gastroscopy device that the flaring device is inconvenient to fix, the gastroscopy tube is inconvenient to fix after penetrating into the patient's stomach, and it is inconvenient to relieve the patient's pain. It achieves the purpose of convenient fixation of the flaring device, convenient fixation of the gastroscopy tube after penetrating into the patient's stomach, and convenient relief of pain for the patient. It is a very practical gastroscopy auxiliary device.

[0004] The shortcoming of the above patent is that the auxiliary device cannot be fixed in the oral cavity. Although there are external fixing devices such as elastic bands, the involuntary movement of human teeth will still cause the auxiliary device to swing in the human oral cavity, thereby causing damage to the oral cavity. At the same time, the shaking of the teeth will also drive the rotation of the expansion device, thereby affecting the safety of gastroscopy. Summary of the Invention

[0005] The purpose of the present invention is to provide a gastroscopy auxiliary device to solve the above-mentioned deficiencies in the prior art.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a gastroscopy auxiliary device, comprising a gastroscope tube and a support block arranged around the middle of the gastroscope tube, an expansion piece arranged around the bottom of the gastroscope tube, and the expansion piece is used to expand the oral cavity;

[0007] A connecting piece is provided at the bottom of the opening block, and the connecting piece is used to connect the opening block and the expansion piece to ensure that the expansion piece can fit the inner wall of the oral cavity;

[0008] Two bayonet pieces are provided in the middle of the inner portion of the support block, and the two bayonet pieces are used to clamp the upper and lower rows of teeth of the examinee to prevent the device from shaking inside the examinee's mouth.

[0009] Furthermore, the connecting member includes a sliding shell column, which is fixedly connected to the bottom of the support block, and the top of the inner cavity of the sliding shell column is fixedly connected to a sliding spring, and the other end of the sliding spring is fixedly connected to a sliding connecting column, and the sliding connecting column is slidably connected to the bottom of the sliding spring, and the bottom of the sliding connecting column is fixedly connected to a water-blocking shell plate.

[0010] Furthermore, the interior of the water-blocking shell plate is symmetrically fixedly connected with a fixed connecting plate, both sides of the fixed connecting plate are fixedly connected with a connecting spring, and the other end of the connecting spring is fixedly connected with a water-blocking sliding plate.

[0011] Furthermore, the expansion piece includes two cavity-supporting slides, which are symmetrically fixedly connected to the end of the water-blocking slide away from the fixed connecting plate. Cavity-supporting slide columns are symmetrically fixedly arranged on the inner side of the cavity-supporting slides. The end of the cavity-supporting slide column away from the cavity-supporting slide is fixedly connected to a cavity-supporting spring. The other end of the cavity-supporting spring is fixedly connected to a cavity-supporting groove plate. The cavity-supporting groove plate is arranged around the bottom of the gastroscope tube.

[0012] Furthermore, a connecting slide column is fixedly connected to the side surface of the support cavity slide column, and the connecting slide column is slidably set on the support cavity groove plate. The end of the connecting slide column away from the support cavity slide column is fixedly connected to a fixed connecting block, and the bottom of the fixed connecting block is rotatably connected to a rotating base plate. The side surface of the rotating base plate is fixedly connected to a rotating spring, and the other end of the rotating spring is fixedly connected to the side surface of the fixed connecting block. The end of the connecting slide column away from the support cavity slide column is slidably connected to the support cavity rotating plate.

[0013] Furthermore, the bayonet member includes a plurality of locking springs, which are symmetrically distributed on both sides of the support block and are arranged linearly. The other end of the locking spring is fixedly connected to a locking tooth block, and the locking tooth block is slidably arranged inside the support block. The symmetrically arranged locking tooth blocks are in conflict with each other away from one end of the locking spring.

[0014] Furthermore, the bayonet member also includes a pushing inclined block, which is symmetrically fixedly connected to the outer side of the tooth block, and a sliding abutment is slidingly provided in the middle of the support block, and the sliding abutment is provided with an inclined surface close to the inner side of the pushing inclined block, and the inclined surface of the sliding abutment conflicts with the inclined surface of the bottom of the pushing inclined block, and a sliding connecting block is fixed to the bottom of the sliding abutment, and a return spring is fixedly connected to one side of the sliding connecting block, and the other end of the return spring is fixedly connected to the inside of the support block.

[0015] Furthermore, the support cavity rotating plate is provided with a sliding groove, the rotating base plate and the fixed connecting block are slidably arranged inside the sliding groove, and the rotating base plate abuts against the inner wall of the sliding groove provided on the support cavity rotating plate.

[0016] In the above technical solution, the present invention provides a gastroscopy auxiliary device, which has the following beneficial effects: the fixation of teeth by the bayonet prevents the human teeth from moving involuntarily, thereby preventing the auxiliary device from shaking in the human mouth and causing damage to the oral cavity. At the same time, the bayonet can ensure that the teeth are in contact with the plane, preventing the teeth from driving the support block to rotate, thereby ensuring the safety of gastroscopy and preventing the gastroscope tube from being moved in the oral cavity.

[0017] The expansion of the oral cavity by the expansion piece prevents the gastroscope from colliding with the oral cavity at the entrance, thereby preventing the risk of the gastroscope damaging the oral cavity due to movement of the gastroscope. At the same time, the connection between the connecting piece and the expansion piece avoids the possibility of excessive expansion of the oral cavity through expansion, so that the expansion piece can fit the oral cavity, thereby protecting the safety of the oral cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction to the drawings required for use in the embodiments will be given below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0020] Figure 2 A schematic perspective cross-sectional view of a sliding shell column provided in an embodiment of the present invention;

[0021] Figure 3 A schematic perspective cross-sectional view of a center support cavity sliding column provided by an embodiment of the present invention;

[0022] Figure 4 A schematic cross-sectional perspective view of an expansion member provided in an embodiment of the present invention;

[0023] Figure 5 A schematic sectional perspective view of a sliding groove provided in an embodiment of the present invention;

[0024] Figure 6 An enlarged schematic diagram of the structure at point A provided in an embodiment of the present invention;

[0025] Figure 7 A schematic sectional perspective view of a connector according to an embodiment of the present invention;

[0026] Figure 8A three-dimensional schematic diagram of a latching tooth member provided in an embodiment of the present invention;

[0027] Figure 9 A schematic sectional perspective view of a latching member provided in an embodiment of the present invention;

[0028] Figure 10 A three-dimensional schematic diagram of a sliding plate connection structure provided in an embodiment of the present invention;

[0029] Figure 11 An enlarged schematic diagram of the structure at point B provided in an embodiment of the present invention;

[0030] Figure 12 A schematic sectional perspective view of a sliding connecting block provided in an embodiment of the present invention.

[0031] Explanation of the reference numerals: 1. gastroscope tube; 3. support block; 401. sliding shell column; 402. sliding spring; 403. sliding connecting column; 404. water-blocking shell plate; 405. fixed connecting plate; 406. connecting spring; 407. water-blocking slide plate; 501. cavity support slide plate; 502. cavity support sliding column; 503. cavity support spring; 504. cavity support groove plate; 505. connecting sliding column; 506. fixed connecting block; 507. rotating bottom plate; 508. rotating spring; 509. cavity support rotating plate; 51. sliding rotating groove; 601. locking spring; 602. tooth block; 603. pushing inclined block; 604. sliding abutment plate; 605. sliding connecting block; 606. reset spring. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] See also Figure 1-12 The embodiment of the present invention provides a gastroscopy auxiliary device, comprising a gastroscope tube 1 and a support block 3 arranged around the middle of the gastroscope tube 1. An expansion piece is arranged around the bottom of the gastroscope tube 1, and the expansion piece is used to expand the oral cavity;

[0034] A connecting piece is provided at the bottom of the opening block 3, and the connecting piece is used to connect the opening block 3 with the expansion piece to ensure that the expansion piece can fit the inner wall of the oral cavity;

[0035] Two bayonet pieces are provided in the middle of the inner portion of the support block 3, and the two bayonet pieces are used to clamp the upper and lower rows of teeth of the examinee to prevent the device from shaking inside the examinee's mouth.

[0036] In the above technical solution, the teeth are fixed by the bayonet, which prevents the human teeth from moving involuntarily, and thus prevents the auxiliary device from shaking in the human mouth, causing damage to the oral cavity. At the same time, the bayonet can ensure that the teeth are in contact with the plane, preventing the teeth from driving the support block 3 to rotate, thereby ensuring the safety of gastroscopy and preventing the gastroscope tube 1 from being moved in the oral cavity. The expansion of the oral cavity by the expander prevents the gastroscope from conflicting with the oral cavity at the entrance, thereby preventing the risk of gastroscope movement damaging the oral cavity. At the same time, the connection between the connecting piece and the expander avoids the possibility of excessive expansion of the oral cavity through expansion, so that the expander can fit the oral cavity, thereby protecting the safety of the oral cavity.

[0037] Specifically, the connecting member includes a sliding shell column 401, which is fixedly connected to the bottom of the support block 3. The top of the inner cavity of the sliding shell column 401 is fixedly connected to a sliding spring 402. The other end of the sliding spring 402 is fixedly connected to a sliding connecting column 403. The sliding connecting column 403 is slidably connected to the bottom of the sliding spring 402. The bottom of the sliding connecting column 403 is fixedly connected to a water-blocking shell plate 404.

[0038] In the above technical solution, the water-blocking shell 404 can move up and down under the action of the force through the elastic extension of the sliding spring 402, thereby ensuring that the expansion piece can fit the inner wall of the oral cavity.

[0039] Specifically, the interior of the water-blocking shell 404 is symmetrically fixedly connected with a fixed connecting plate 405, both sides of the fixed connecting plate 405 are fixedly connected with a connecting spring 406, and the other end of the connecting spring 406 is fixedly connected with a water-blocking slide plate 407.

[0040] In the above technical solution, the saliva in the oral cavity is blocked by the water-blocking shell plate 404 and the fixed connecting plate 405 , thereby causing the saliva to flow to the top of the water-blocking shell plate 404 .

[0041] Specifically, the expansion member includes two cavity-supporting slides 501, and the two cavity-supporting slides 501 are symmetrically fixedly connected to the end of the water-blocking slide 407 away from the fixed connecting plate 405. The inner side of the cavity-supporting slide 501 is symmetrically fixed with a cavity-supporting slide column 502, and the end of the cavity-supporting slide column 502 away from the cavity-supporting slide 501 is fixedly connected to a cavity-supporting spring 503, and the other end of the cavity-supporting spring 503 is fixedly connected to a cavity-supporting groove plate 504, and the cavity-supporting groove plate 504 is surrounded and arranged at the bottom of the gastroscope tube 1.

[0042] In the above technical solution, the cavity supporting slide plate 501 can slide through the elastic stretching action of the cavity supporting spring 503 and the cavity supporting slide column 502, thereby making the cavity supporting slide plate 501 fit the inner wall of the oral cavity.

[0043] Specifically, a connecting slide 505 is fixedly connected to the side of the support cavity slide 502, and the connecting slide 505 is slidably set on the support cavity groove plate 504. The end of the connecting slide 505 away from the support cavity slide 502 is fixedly connected to a fixed connecting block 506, and the bottom of the fixed connecting block 506 is rotatably connected to a rotating base plate 507. The side of the rotating base plate 507 is fixedly connected to a rotating spring 508, and the other end of the rotating spring 508 is fixedly connected to the side of the fixed connecting block 506. The end of the connecting slide 505 away from the support cavity slide 502 is slidably connected to a support cavity rotating plate 509.

[0044] In the above technical solution, the cavity supporting rotating plate 509 interacts with the cavity supporting slide plate 501 to ensure that the oral cavity can be fully expanded while ensuring the collection of saliva.

[0045] Specifically, the bayonet member includes a plurality of locking springs 601, and the plurality of locking springs 601 are symmetrically distributed on both sides of the support block 3, and the plurality of locking springs 601 are arranged linearly. The other end of the locking spring 601 is fixedly connected to a locking tooth block 602, and the locking tooth block 602 is slidably set inside the support block 3, and the symmetrically set locking tooth blocks 602 are in conflict with each other away from one end of the locking spring 601.

[0046] In the above technical solution, the linearly arranged locking tooth blocks 602 can come into contact with the teeth under the elastic extension of the locking spring 601, thereby locking the teeth.

[0047] Specifically, the bayonet member also includes a pushing inclined block 603, which is symmetrically fixedly connected to the outer side of the tooth block 602, and a sliding abutment plate 604 is slidingly provided in the middle of the support block 3. The sliding abutment plate 604 is provided with an inclined surface close to the inner side of the pushing inclined block 603, and the inclined surface of the sliding abutment plate 604 conflicts with the inclined surface of the bottom of the pushing inclined block 603. A sliding connecting block 605 is fixed to the bottom of the sliding abutment plate 604, and a reset spring 606 is fixedly connected to one side of the sliding connecting block 605, and the other end of the reset spring 606 is fixedly connected to the inside of the support block 3.

[0048] In the above technical solution, by pushing the inclined block 603 to extend the sliding plate 604, the sliding plate 604 can be extended, so that the teeth are in contact with a plane.

[0049] Specifically, the support cavity rotating plate 509 is provided with a sliding groove 51 , the rotating base plate 507 and the fixed connecting block 506 are slidably arranged inside the sliding groove 51 , and the rotating base plate 507 abuts against the inner wall of the sliding groove 51 provided on the support cavity rotating plate 509 .

[0050] In the above technical solution, through the elastic stretching effect of the rotating spring 508 and the rotation of the fixed connecting block 506 and the rotating base plate 507, the cavity supporting rotating plate 509 can be rotated in the oral cavity while ensuring that the cavity supporting rotating plate 509 is in contact with the inner wall of the oral cavity.

[0051] Specifically, the working principle and operation method of the present invention are as follows:

[0052] When not in use, the symmetrically arranged latching tooth blocks 602 abut against each other, and the pushing inclined block 603 and the sliding abutting plate 604 abut against each other.

[0053] During use, the person being examined lies flat on the bed, and the operator puts the device into the person being examined's mouth, so that the support block 3 is stuck on the person being examined's lips. At this time, the support cavity groove plate 504 drives the support cavity slide plate 501 and the support cavity rotating plate 509 to contact the inner wall of the oral cavity. Under the contact of the inner wall of the oral cavity, the support cavity groove plate 504 moves upward, and then drives the support cavity slide plate 501 upward through the support cavity sliding column 502. The support cavity slide plate 501 drives the water-blocking slide plate 407 to move upward, and then drives the water-blocking shell plate 404 to move upward. The water-blocking shell plate 404 drives the sliding connecting column 403 to move upward, so that the sliding connecting column 403 slides inside the sliding shell column 401 and compresses the sliding spring 402. Under the elastic extension action of the sliding spring 402, the support cavity groove plate 504 contacts the inner wall of the oral cavity without causing damage to the inner wall of the oral cavity.

[0054] At this time, under the resistance of the inner wall of the oral cavity, the cavity support slide 501 moves toward the direction close to the cavity support slide column 502, thereby driving the cavity support slide column 502 to slide toward the direction close to the cavity support spring 503 and compressing the cavity support spring 503. At this time, under the elastic extension action of the cavity support spring 503, the cavity support slide 501 is tightly attached to the inner wall of the oral cavity.

[0055] At this time, the support cavity slide 502 drives the connecting slide 505 to move toward the direction of the support cavity spring 503, and then drives the fixed connecting block 506 to slide in the sliding groove 51. The fixed connecting block 506 drives the rotating base plate 507 and the rotating spring 508 to slide in the sliding groove 51. At this time, under the resistance of the inner wall of the oral cavity, the support cavity rotating plate 509 rotates around the fixed connecting block 506, and then resists the rotating base plate 507, pushing the rotating base plate 507 to rotate and compressing the rotating spring 508. Under the elastic extension action of the rotating spring 508, the rotating base plate 507 pushes the support cavity rotating plate 509 to resist the inner wall of the oral cavity, thereby fully expanding the oral cavity.

[0056] At the same time, as the person being examined bites the support block 3, the person being examined's teeth will come into contact with the inclined surface of the pushing inclined block 603, thereby pushing the inclined block 603 toward the direction close to the locking spring 601 and compressing the locking spring 601. When the teeth separate the two pushing inclined blocks 603 that are in contact with each other, under the elastic stretching action of the locking spring 601, the locking tooth block 602 comes into contact with the teeth, thereby locking the teeth.

[0057] At this time, as the latch block 602 moves toward the direction close to the latch spring 601, the latch block 602 drives the pushing inclined block 603 to move toward the direction close to the latch spring 601, and then contacts the side of the sliding support plate 604, pushing the sliding support plate 604 to move in the direction away from the pushing inclined block 603. The sliding support plate 604 drives the sliding connecting block 605 to move in the direction away from the pushing inclined block 603 and compresses the reset spring 606. At this time, the sliding support plate 604 moves in the direction away from the pushing inclined block 603 and contacts the teeth at the same time, making it impossible for the support block 3 to rotate, thereby ensuring that the expansion piece cannot rotate.

[0058] At this time, as the oral cavity is expanded, the operator extends the gastroscope tube 1 through the opening block 3 into the human body to complete the gastroscopy examination.

[0059] After the examination is completed, the operator pulls the gastroscope tube 1 out of the examinee's body and opens the examinee's mouth. Then, under the elastic extension of the locking spring 601, the tooth block 602 moves in the direction away from the locking spring 601, and then they conflict with each other again. At the same time, the tooth block 602 drives the pushing inclined block 603 to move in the direction away from the locking spring 601, and then no longer conflicts with the sliding support plate 604. At this time, under the elastic extension of the reset spring 606, the sliding connecting block 605 drives the sliding support plate 604 to move in the direction close to the locking spring 601, so that the sliding support plate 604 returns to its original position.

[0060] At this time, the operator takes out the auxiliary device, and the cavity support rotating plate 509 and the cavity support sliding column 502 no longer conflict with the inner wall of the oral cavity. Under the elastic extension of the cavity support spring 503, the cavity support sliding column 502 drives the cavity support slide plate 501 to move away from the cavity support spring 503, thereby returning the cavity support slide plate 501 to its original position. Under the elastic torsion of the rotating spring 508, the rotating bottom plate 507 pushes the cavity support rotating plate 509 to rotate, thereby returning the cavity support rotating plate 509 to its original position. At the same time, under the elastic extension of the sliding spring 402, the sliding shell column 401 drives the support mouth block 3 to move upward, thereby ensuring that the device returns to its original position.

[0061] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A gastroscopy auxiliary device, comprising a gastroscope tube (1) and a support block (3) arranged around the middle of the gastroscope tube (1), characterized in that: An expansion piece is provided around the bottom of the gastroscope tube (1), and the expansion piece is used to expand the oral cavity; A connecting piece is provided at the bottom of the opening support block (3), and the connecting piece is used to connect the opening support block (3) and the expansion piece to ensure that the expansion piece can fit the inner wall of the oral cavity; Two bayonet pieces are provided in the middle of the inner portion of the support block (3), and the two bayonet pieces are used to clamp the upper and lower rows of teeth of the examinee to prevent the device from shaking inside the examinee's mouth.

2. A gastroscopy auxiliary device according to claim 1, characterized in that: The connecting member comprises a sliding shell column (401), the sliding shell column (401) is fixedly connected to the bottom of the support block (3), the top of the inner cavity of the sliding shell column (401) is fixedly connected to a sliding spring (402), the other end of the sliding spring (402) is fixedly connected to a sliding connecting column (403), the sliding connecting column (403) is slidably connected to the bottom of the sliding spring (402), and the bottom of the sliding connecting column (403) is fixedly connected to a water-blocking shell plate (404).

3. A gastroscopy auxiliary device according to claim 2, characterized in that: The interior of the water-blocking shell plate (404) is symmetrically fixedly connected with a fixed connecting plate (405), both sides of the fixed connecting plate (405) are fixedly connected with a connecting spring (406), and the other end of the connecting spring (406) is fixedly connected with a water-blocking sliding plate (407).

4. A gastroscopy auxiliary device according to claim 3, characterized in that: The expansion member includes two cavity support slides (501), and the two cavity support slides (501) are symmetrically fixedly connected to the end of the water-blocking slide (407) away from the fixed connecting plate (405). The inner side of the cavity support slide (501) is symmetrically fixed with a cavity support slide column (502), and the end of the cavity support slide column (502) away from the cavity support slide (501) is fixedly connected to a cavity support spring (503), and the other end of the cavity support spring (503) is fixedly connected to a cavity support groove plate (504), and the cavity support groove plate (504) is arranged around the bottom of the gastroscope tube (1).

5. A gastroscopy auxiliary device according to claim 4, characterized in that: The side of the cavity slide (502) is fixedly connected with a connecting slide (505), and the connecting slide (505) is slidably set on the cavity groove plate (504). The end of the connecting slide (505) away from the cavity slide (502) is fixedly connected with a fixed connecting block (506), and the bottom of the fixed connecting block (506) is rotatably connected with a rotating base plate (507). The side of the rotating base plate (507) is fixedly connected with a rotating spring (508), and the other end of the rotating spring (508) is fixedly connected to the side of the fixed connecting block (506). The end of the connecting slide (505) away from the cavity slide (502) is slidably connected with a cavity rotating plate (509).

6. A gastroscopy auxiliary device according to claim 5, characterized in that: The bayonet member includes a plurality of latching springs (601), the plurality of latching springs (601) are symmetrically distributed on both sides of the support block (3), and the plurality of latching springs (601) are arranged in a linear shape. The other end of the latching spring (601) is fixedly connected to a latching tooth block (602), and the latching tooth block (602) is slidably arranged inside the support block (3). The symmetrically arranged latching tooth blocks (602) are in contact with each other at one end away from the latching spring (601).

7. A gastroscopy auxiliary device according to claim 6, characterized in that: The bayonet member further comprises a pushing inclined block (603), the pushing inclined block (603) being symmetrically fixedly connected to the outer side of the latch tooth block (602), a sliding support plate (604) being slidingly provided in the middle of the opening block (3), the sliding support plate (604) being provided with an inclined surface close to the inner side of the pushing inclined block (603), the inclined surface of the sliding support plate (604) being in conflict with the inclined surface of the bottom of the pushing inclined block (603), a sliding connecting block (605) being fixedly connected to one side of the sliding connecting block (605) with a return spring (606), the other end of the return spring (606) being fixedly connected to the interior of the opening block (3).

8. The gastroscopy auxiliary device according to claim 5, characterized in that: The support cavity rotating plate (509) is provided with a sliding groove (51), the rotating base plate (507) and the fixed connecting block (506) are slidably arranged inside the sliding groove (51), and the rotating base plate (507) contacts the inner wall of the support cavity rotating plate (509) where the sliding groove (51) is provided.

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