CN117982776A - Fixed knot constructs and medical catheter connects - Google Patents

Abstract

The application discloses a fixing structure and a medical catheter connector, and relates to the technical field of catheters. The application comprises the following steps: the device comprises a mounting plate, a connecting piece and a tightening end, wherein the mounting plate is fixed with a patient through the connecting piece, and the connecting piece is provided with a hoop cavity and a tightening end, and the hoop cavity is used for accommodating limbs of the patient. According to the application, the connecting piece is arranged on the mounting plate, the connecting piece is connected with the limb of a patient through the hoop cavity when in use, the size of the hoop cavity is changed through the tightening end, the mounting plate and the patient are conveniently fixed, the fixing piece and the abutting piece are arranged on the mounting plate, when in use, the fixing piece is used for fixing the medical catheter through the abutting end, and the abutting end is limited through the clamping end of the abutting piece and the fixing piece, so that the medical catheter is fixed with the mounting plate, when in use, the possibility of falling off of the catheter is reduced, the possibility of falling off of the fixing structure from the patient is also reduced, the stability when in use is increased, and the medical catheter is convenient for medical staff to use.

Description

Fixed knot constructs and medical catheter connects

Technical Field

The application relates to the technical field of catheters, in particular to a fixing structure and a medical catheter connector.

Background

A medical catheter is a thin tube made of medical grade material and has a wide range of functions. Medical catheters are medical devices that can be inserted into the body to treat a disease or to perform a surgical operation, and often require fixation by a fixation member to prevent removal after the medical catheter is inserted into a patient.

The existing medical catheter is fixed by a plurality of layers of medical adhesive tapes, when sweat or oil is discharged from the skin surface of a patient, the adhesive tapes are easy to fall off from the patient, and after the adhesive tapes are used for a long time, the viscosity of the adhesive tapes is easy to drop, so that the connection between the catheter and the adhesive tapes is loosened, and medical staff are required to frequently replace the adhesive tapes in both cases, so that the inconvenience of the existing fixing piece in use is caused.

Disclosure of Invention

The application aims at: in order to solve the above-mentioned problems in the background art, the present application provides a fixing structure and a medical catheter adapter.

The application adopts the following technical scheme for realizing the purposes:

A fixation structure, comprising:

The device comprises a mounting plate, a connecting piece and a fixing plate, wherein the mounting plate is fixed with a patient through the connecting piece, the connecting piece is provided with a hoop cavity and a tightening end, the hoop cavity is used for accommodating limbs of the patient, and the tightening end is used for changing the size of the hoop cavity;

the fixing piece is arranged on the mounting plate and provided with two abutting ends and clamping ends, the two abutting ends are in sliding fit with the mounting plate, the clamping ends are positioned on the abutting ends, and when the two abutting ends are in contact with each other, the clamping ends positioned on the abutting ends are mutually clamped, so that the sliding of the abutting ends is limited;

The interference piece is arranged on the mounting plate and provided with a limiting end, and the limiting end is used for interfering two opposite sides of the interference end.

Further, the connector includes:

the arc belts are symmetrically arranged at the bottom of the mounting plate, and arc cavities between the arc belts form hoop cavities;

the sliding groove is formed in one of the arc-shaped belts, a spring telescopic rod is arranged in the sliding groove in a sliding mode, a collision block is arranged at the telescopic end of the spring telescopic rod, and the telescopic end of the spring telescopic rod forces the collision block to collide with the surface of the arc-shaped belt;

the connecting belt is movably arranged on the spring telescopic rod, and the connecting belt is connected with the other arc-shaped belt through a magic tape.

Further, the fixing member includes:

the clamping plate is slidably arranged on the mounting plate and is an abutting end, and an arc-shaped groove is formed in the clamping plate;

The riser is installed on the grip block, installs the hook plate on one of them riser, installs the logical groove that is used for holding the hook plate on another riser, lead to the inslot and install the swash plate, the direction that is close to the hook plate is towards the minimum orientation of swash plate, and the direction of hook plate is kept away from to the highest orientation of swash plate, and when the hook plate inserts to establish to lead to in the inslot, the swash plate is contradicted and the slip of grip block to the hook plate is restricted.

Further, the interference member includes:

The bearing plate is installed on the installation plate, the rotating rod is rotatably installed on the bearing plate, the polygonal block is installed at the end part of the rotating rod, the accommodating block is installed on the installation plate, a polygonal groove for accommodating the polygonal block is formed in the accommodating block, a plurality of edge blocks are installed at the edge angles of the polygonal block through connecting springs, and the connecting springs force the edge blocks to abut against the inner walls of the polygonal groove;

and the abutting rod is arranged on the rotating rod and is used for abutting against the clamping plate.

Further, the mounting plate and the arc-shaped belt are provided with a containing cavity, the bearing plate is inserted into the containing cavity, and the containing cavity is internally provided with an oxidation piece and heat insulation cotton.

Further, the round bar is installed on the polygonal block, the convex bar is installed on the side wall of the round bar, the fixing plate is installed on the mounting plate, the phi-shaped groove for the convex bar to pass through is installed on the fixing plate, and when the round bar rotates until the projection of the convex bar on the fixing plate is not overlapped with the opening of the phi-shaped groove, the sliding of the round bar in the phi-shaped groove is limited.

Further, a guide plate is arranged at the lowest end of the inclined plate, and a chute which is in sliding fit with the guide plate is arranged on the vertical plate.

Further, elastic ropes are arranged between the accommodating blocks.

The application also provides a medical catheter connector which is used for being connected with the fixing structure and comprises a catheter body, wherein the catheter body is communicated with a medical catheter, a sliding ring plate is arranged on the catheter body through a collision spring, a fixing ring plate is also arranged on the catheter body, the space between the sliding ring plate and the fixing ring plate is used for accommodating a clamping plate, an inserting rod is arranged on the sliding ring plate, and an inserting hole for accommodating the inserting rod is formed in the clamping plate.

Further, a rubber buckle is arranged on the sliding ring plate, a pore canal is formed in the rubber buckle, and a protruding block used for being inserted into the pore canal is arranged on one clamping plate.

The beneficial effects of the application are as follows:

According to the application, the connecting piece is arranged on the mounting plate, the connecting piece is connected with the limb of a patient through the hoop cavity when in use, the size of the hoop cavity is changed through the tightening end, the mounting plate and the patient are conveniently fixed, the fixing piece and the abutting piece are arranged on the mounting plate, when in use, the fixing piece is used for fixing the medical catheter through the abutting end, and the abutting end is limited through the clamping end of the abutting piece and the fixing piece, so that the medical catheter is fixed with the mounting plate, when in use, the possibility of falling off of the catheter is reduced, the possibility of falling off of the fixing structure from the patient is also reduced, the stability when in use is increased, and the medical catheter is convenient for medical staff to use.

Drawings

FIG. 1 is a schematic perspective view of the present application;

FIG. 2 is a schematic view of the structure of the pipe body of the present application;

FIG. 3 is a schematic view of the structure of the fastener of the present application;

FIG. 4 is an exploded view of a portion of the construction of the present application;

FIG. 5 is an exploded view of the structure of the interference member of the present application;

FIG. 6 is an exploded view of a polygonal block structure of the present application;

FIG. 7 is an exploded view of the structure of FIG. 3 in accordance with the present application;

FIG. 8 is a perspective cross-sectional view of FIG. 3 in accordance with the present application;

Reference numerals: 1. a mounting plate; 2. a connecting piece; 201. an arc-shaped belt; 202. a sliding groove; 203. a spring telescoping rod; 204. a collision block; 205. a connecting belt; 3. a fixing member; 301. a clamping plate; 302. an arc-shaped groove; 303. a riser; 304. a hook plate; 305. a through groove; 306. a sloping plate; 4. a contact member; 401. a carrying plate; 402. a rotating rod; 403. a polygonal block; 404. a receiving block; 405. polygonal grooves; 406. a connecting spring; 407. edge blocks; 408. a touch-up rod; 5. a receiving chamber; 6. an oxidation member; 7. thermal insulation cotton; 8. a fixing plate; 9. a protruding rod; 10. phi-shaped grooves; 11. a round bar; 12. an elastic rope; 13. a guide plate; 14. a chute; 15. a tube body; 16. a contact spring; 17. a sliding ring plate; 18. a fixed ring plate; 19. a rod; 20. a jack; 21. a rubber buckle; 22. a duct; 23. and a bump.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

Example 1

As shown in fig. 1 to 8, a fixing structure according to a first embodiment of the present application is suitable for a medical catheter to be fixed to a limb of a patient, and includes:

the mounting plate 1 is fixed with a patient through the connecting piece 2, the connecting piece 2 is provided with a hoop cavity and a tightening end, the hoop cavity is used for accommodating limbs of the patient, the tightening end is used for changing the size of the hoop cavity, when the device is used, the limbs of the patient are accommodated through the hoop cavity of the connecting piece 2, the hoop cavity is tightened through the tightening end, the mounting plate 1 is connected with the limbs of the patient, the possibility of falling off of the mounting plate 1 is reduced, and when a cannula is needed, the hoop cavity is enlarged through the tightening end, so that the mounting plate 1 is convenient to separate from the patient;

The fixing piece 3 is arranged on the mounting plate 1, the fixing piece 3 is provided with two abutting ends and clamping ends, the two abutting ends are in sliding fit with the mounting plate 1, the clamping ends are positioned on the abutting ends, when the two abutting ends are in contact with each other, the clamping ends positioned on the abutting ends are mutually clamped so that the sliding of the abutting ends is limited, when the abutting ends are mutually close to and in contact with each other in use, the fixing piece 3 is used for clamping and abutting the medical catheter, and the sliding of the abutting ends is limited through the clamping ends so that the medical catheter is connected with the mounting plate 1, and then the medical catheter is indirectly connected with a patient;

The abutting piece 4 is arranged on the mounting plate 1, the abutting piece 4 is provided with a limiting end, the limiting end is used for abutting two opposite sides of the abutting end, when the abutting end of the fixing piece 3 fixes the medical catheter, the limiting end of the abutting piece 4 is matched, the sliding of the abutting end is further limited, and the stability of the abutting end in use is improved;

Compared with the prior art, install connecting piece 2 on mounting panel 1, be connected through hoop chamber and patient's limbs when using, and change the size in hoop chamber through tightening up the end, be convenient for fix mounting panel 1 and patient, and install mounting 3 and conflict piece 4 on mounting panel 1, when using, mounting 3 is used for fixing medical catheter through conflict end, and limit conflict end through conflict piece 4 and 3 joint end, make medical catheter and mounting panel 1 fix, when using, the possibility that the pipe takes place to drop has been reduced, also reduced the possibility that this fixed knot constructs drops from the patient, stability when having increased the use, medical personnel of being convenient for use.

Example two

As shown in fig. 1 to 8, in the second embodiment, the connecting member 2, the fixing member 3, and the abutting member 4 are disclosed on the basis of the first embodiment, and in the second embodiment, the connecting member 2 includes:

The number of the arc belts 201 is two, the arc belts 201 are symmetrically arranged at the bottom of the mounting plate 1, an arc cavity is formed between the arc belts 201 to form a hoop cavity, the arc belts 201 are made of rubber or other flexible materials and are in flexible contact with a patient, comfort of the device is improved, when the device is used, the arc belts 201 are in contact with limbs of the patient, the inner walls of the arc belts 201 are arc-shaped, the arc belts can be better in contact with the limbs of the patient, contact area is increased, and connection strength between the arc belts and the patient is improved when the arc belts are connected;

The sliding groove 202 is formed in one of the arc-shaped belts 201, the spring telescopic rod 203 is slidably mounted in the sliding groove 202, the abutting block 204 is mounted at the telescopic end of the spring telescopic rod 203, the abutting block 204 is forced to abut against the surface of the arc-shaped belt 201 by the telescopic end of the spring telescopic rod 203, the spring telescopic rod 203 comprises an outer sleeve, a spring is mounted in the outer sleeve, rod bodies are mounted at two ends of the spring, the rod bodies are telescopic ends, and when the sliding device is used, the sliding of the spring telescopic rod 203 is limited through the abutting between the abutting block 204 and the arc-shaped belt 201;

The connecting band 205, movable mounting is on spring telescopic link 203, the connecting band 205 can rotate on spring telescopic link 203, and when its flexible end deformation, connecting band 205 and its flexible end sliding fit have reduced the possibility of together moving with flexible end, be convenient for be pressed by conflict piece 204 and hold, be connected through the magic subsides between connecting band 205 and another arc area 201, spring telescopic link 203, conflict piece 204 and connecting band 205 form and tighten up the end, on the use, hold patient's limbs through arc area 201, the pulling is contradicted the piece 204 again, make it remove the conflict with arc area 201, slide spring telescopic link 203, adjust the position of connecting band 205, adjust the hoop chamber that forms between arc area 201 and the connecting band 205 and hold patient's limbs, connect the connecting band 205 through the magic subsides with another arc area 201, the connection is accomplished, when the live time is too long, the possibility that this fixed knot constructs drops from patient.

In the second embodiment, the fixing member 3 includes:

The clamping plate 301 is slidably arranged on the mounting plate 1, the clamping plate 301 is an abutting end, the clamping plate 301 is provided with arc grooves 302, when the clamping plates 301 are mutually close, the two arc grooves 302 form a cavity for accommodating the medical catheter, the clamping plate 301 is better contacted with the outer periphery side of the medical catheter through the inner wall of the arc groove 302, the possibility of flattening and blocking the medical catheter due to shape mismatch is reduced, and the practicability of the device is improved;

A riser 303, mounted on the clamping plate 301, wherein a hook plate 304 is mounted on one riser 303, a through groove 305 for accommodating the hook plate 304 is mounted on the other riser 303, a sloping plate 306 is mounted in the through groove 305, the lowest end of the sloping plate 306 faces the direction close to the hook plate 304, the highest end of the sloping plate 306 faces the direction far away from the hook plate 304, when the hook plate 304 is inserted into the through groove 305, the sloping plate 306 is abutted against the hook plate 304, the sliding of the clamping plate 301 is limited, the riser 303, the hook plate 304, the through groove 305 and the sloping plate 306 form a clamping end, the hook plate 304, the through groove 305 and the sloping plate 306 are formed into a shape as shown in fig. 8, the hook plate 304 and the sloping plate 306 are made of plastic or other elastic materials, when the hook plate 304 needs to be separated from the through groove 305, the hook plate 304 is pressed, the two clamping plates 301 are pulled away from each other, the hook plate 304 is pressed to enable the hook end of the sloping plate 304 to be contacted with the sloping plate 306, and the hook end of the hook plate 304 moves downwards until the height of the whole hook end is lower than the upper surface of the inside the through groove 305;

When the medical catheter clamping device is used, the two clamping plates 301 are mutually close to each other, so that the arc-shaped grooves 302 clamp the medical catheter, when the clamping plates 301 are in contact, the hook plates 304 pass through the through grooves 305 and are clamped with the other sides of the vertical plates 303 through the hook ends, and further the sliding of the two clamping plates 301 is limited, the medical catheter is fixed by the device, and the possibility of falling off of the medical catheter is reduced;

When the tube drawing is needed, the hook plate 304 is broken off, so that the highest point of the hook end of the hook plate is lower than the top of the inner wall of the through groove 305, the whole hook plate 304 can pass through the through groove 305, and at the moment, the clamping plates 301 are pulled away from each other, and the fixation of the medical catheter is released.

In the second embodiment, the interference member 4 includes:

The supporting plate 401 is arranged on the mounting plate 1, the rotating rod 402 is rotatably arranged on the supporting plate 401, the polygonal block 403 is arranged at the end part of the rotating rod 402, the accommodating block 404 is arranged on the mounting plate 1, the polygonal groove 405 for accommodating the polygonal block 403 is formed in the accommodating block 404, a plurality of the polygonal blocks 407 are arranged at the edges and corners of the polygonal block 403 through the connecting springs 406, the connecting springs 406 force the polygonal blocks 407 to abut against the inner walls of the polygonal groove 405, when in use, the side walls of the polygonal blocks 403 are limited through the inner walls of the polygonal grooves 405, further when no external force is applied, the rotation of the rotating rod 402 is limited, when the rotating rod 402 needs to be rotated, the rotating rod 402 is rotated by force, the polygonal blocks 407 abut against the inner walls of the polygonal grooves 405, the connecting springs 406 are compressed, the polygonal blocks 407 are far away from the inner walls of the polygonal grooves 405, the whole polygonal blocks 403 are smaller than the volumes of the polygonal grooves 405, the polygonal blocks 403 can rotate in the polygonal blocks, and the rotating rod 403 can meet the requirement that the rotating of a sickbed is difficult to receive the force of an arc line direction, and the patient cannot rotate the rotating rod 402 when the patient moves daily, unless the rotating rod 402 is required to rotate the rotating rod 402, and the patient is difficult to move daily, unless the patient moves the rotating rod 402, and the patient is difficult to rotate in the direction;

the abutting rod 408 is arranged on the rotating rod 402, the abutting rod 408 is used for abutting against the clamping plate 301, the abutting rod 408 is a limiting end and abuts against two opposite sides of the clamping plate 301, sliding of the clamping plate 301 is further limited, and stability of the clamping plate 301 in use is improved;

When in use, the abutting rod 408 does not abut against the clamping plate 301, and after the clamping plate 301 is connected with each other, the rotating rod 402 is rotated, so that the abutting rod 408 abuts against the side wall of the clamping plate 301, the sliding of the clamping plate 301 on the mounting plate 1 is limited, and the stability of the clamping plate 301 in use is improved.

Example III

As shown in fig. 1-8, the third embodiment further discloses the application based on the second embodiment, in the third embodiment, the mounting plate 1 and the arc-shaped belt 201 are provided with a containing cavity 5, the bearing plate 401 is inserted into the containing cavity 5, an oxidation piece 6 and heat insulation cotton 7 are arranged in the containing cavity 5, the oxidation piece 6 is consistent with the existing warming baby components, the outside is wrapped by non-woven fabrics, when the device is used, the device is used for keeping warm at the position where a patient wears the device, and the temperature transferred to the patient is adjusted by adding or taking out the heat insulation cotton 7 into the containing cavity 5, so that the practicability of the device is improved;

When using, dismantle loading board 401 with hold the chamber 5 after, take out or change oxide piece 6, can take out oxide piece 6 when weather is hot, and the cold and oxide piece 6 of weather finishes the back of generating heat, can change it, after the change finishes, with loading board 401 with insert in holding the chamber 5 again, reduce the loss of temperature, when using, the device is continuously supplied with the temperature to the patient, has increased the practicality of device.

In the third embodiment, the polygonal block 403 is provided with the round bar 11, the side wall of the round bar 11 is provided with the convex bar 9, the mounting plate 1 is provided with the fixing plate 8, the fixing plate 8 is provided with the phi-shaped groove 10 through which the convex bar 9 passes, when the round bar 11 rotates until the projection of the convex bar 9 on the fixing plate 8 is not overlapped with the opening of the phi-shaped groove 10, the sliding of the round bar 11 in the phi-shaped groove 10 is limited, the length of the convex bar 9 plus the diameter of the round bar 11 is smaller than the maximum length of the polygonal groove 405, the middle end of the phi-shaped groove 10 is opened in the vertical direction by taking fig. 1 as the main view angle, when the bearing plate 401 is connected with the accommodating cavity 5, the round bar 11 passes through the phi-shaped groove 10, when the rotating rod 402 rotates to enable the abutting bar 408 to abut against the clamping plate 301, the convex bar 9 rotates to the horizontal direction, the opening of the phi-shaped groove 10 is misplaced, the sliding of the round bar 11 and the polygonal block 403 is limited, and the bearing plate 401 is enabled to better seal the opening of the accommodating cavity 5, and the stability of the bearing plate 401 is increased when in use.

In the third embodiment, the guide plate 13 is installed at the lowest end of the inclined plate 306, the vertical plate 303 is provided with the chute 14 which is in sliding fit with the guide plate 13, the length of the opening of the chute 14 is greater than the width of the guide plate 13, and the inner wall of the chute 14 is in contact with the two sides of the guide plate 13, so that the guide plate 13 can only move in the chute 14, the movement range of the inclined plate 306 is limited, and the stability of the inclined plate 306 in use is improved.

In the third embodiment, the elastic cord 12 is installed between the accommodating blocks 404, and when the medical catheter is clamped by the clamping plate 301, the medical catheter is also carried by the elastic cord 12, and the shape of the medical catheter is adapted through the deformation of the elastic cord 12, so that the restriction of the device on the medical catheter is reduced.

As shown in fig. 2 and 3, the present application further provides a medical catheter connector for connecting with the above = fixing structure, which includes a tube body 15, wherein the tube body 15 is communicated with a medical catheter, a sliding ring plate 17 is mounted on the tube body 15 through an abutting spring 16, a fixing ring plate 18 is mounted on the tube body 15, a space between the sliding ring plate 17 and the fixing ring plate 18 is used for accommodating a clamping plate 301, when in use, the clamping plate 301 clamps the medical catheter, the clamping direction is set as a first direction, and the sliding of the sliding ring plate 17 and the pushing of the abutting spring 16 limit the clamping plate 301 in a direction perpendicular to the first direction, so that the stability of the clamping plate 301 in use is increased;

The inserted link 19 is installed on the slip ring plate 17, and the jack 20 for accommodating the inserted link 19 is arranged on the clamping plate 301, so that when the slip ring plate is used, the contact area between the slip ring plate 17 and the clamping plate 301 is increased through the contact between the inserted link 19 and the jack 20, and the connection strength between the slip ring plate and the clamping plate is further increased.

As shown in fig. 2 and 7, in some embodiments, the sliding ring plate 17 is provided with a rubber buckle 21, the rubber buckle 21 is provided with a hole 22, one of the clamping plates 301 is provided with a bump 23 for being inserted into the hole 22, when the sliding ring plate 17 clamps the clamping plate 301, the rubber buckle 21 is broken off, so that the hole 22 on the rubber buckle is connected with the bump 23, the sliding of the sliding ring plate 17 is limited, and the stability of the sliding ring plate 17 in use is increased.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A fixation structure, comprising:

the device comprises a mounting plate (1) which is fixed with a patient through a connecting piece (2), wherein the connecting piece (2) is provided with a hoop cavity and a tightening end, the hoop cavity is used for accommodating limbs of the patient, and the tightening end is used for changing the size of the hoop cavity;

The fixing piece (3) is arranged on the mounting plate (1), the fixing piece (3) is provided with two abutting ends and clamping ends, the two abutting ends are in sliding fit with the mounting plate (1), the clamping ends are positioned on the abutting ends, and when the two abutting ends are in contact with each other, the clamping ends positioned on the abutting ends are mutually clamped, so that the sliding of the abutting ends is limited;

the abutting piece (4) is arranged on the mounting plate (1), the abutting piece (4) is provided with a limiting end, and the limiting end is used for abutting against two opposite sides of the abutting end.

2. The fixation structure according to claim 1, characterized in that the connection element (2) comprises:

The number of the arc belts (201) is two, the arc belts are symmetrically arranged at the bottom of the mounting plate (1), and an arc cavity between the arc belts (201) forms a hoop cavity;

The sliding groove (202) is formed in one of the arc-shaped belts (201), a spring telescopic rod (203) is arranged in the sliding groove (202) in a sliding mode, a collision block (204) is arranged at the telescopic end of the spring telescopic rod (203), and the telescopic end of the spring telescopic rod (203) forces the collision block (204) to collide with the surface of the arc-shaped belt (201);

The connecting belt (205) is movably arranged on the spring telescopic rod (203), and the connecting belt (205) is connected with the other arc-shaped belt (201) through a magic tape.

3. The fixation structure according to claim 2, characterized in that the fixation (3) comprises:

The clamping plate (301) is slidably arranged on the mounting plate (1), the clamping plate (301) is an abutting end, and the clamping plate (301) is provided with an arc-shaped groove (302);

riser (303), install on grip block (301), install hook plate (304) on one of them riser (303), install logical groove (305) that are used for holding hook plate (304) on another riser (303), install swash plate (306) in logical groove (305), the direction that is close to hook plate (304) is oriented to the minimum end of swash plate (306), and the direction of hook plate (304) is kept away from to the maximum end of swash plate (306), and when hook plate (304) are inserted in logical groove (305), swash plate (306) are contradicted to hook plate (304) and slip of grip block (301) is restricted.

4. A fixing structure according to claim 3, characterized in that said interference member (4) comprises:

the bearing plate (401) is arranged on the mounting plate (1), the rotating rod (402) is rotatably arranged on the bearing plate (401), the polygonal block (403) is arranged at the end part of the rotating rod (402), the accommodating block (404) is arranged on the mounting plate (1), the polygonal groove (405) for accommodating the polygonal block (403) is formed in the accommodating block (404), a plurality of edge blocks (407) are arranged at the edge angles of the polygonal block (403) through the connecting springs (406), and the connecting springs (406) force the edge blocks (407) to abut against the inner wall of the polygonal groove (405);

and a contact rod (408) mounted on the rotating rod (402), the contact rod (408) being used for contacting the clamping plate (301).

5. The fixing structure according to claim 4, wherein the mounting plate (1) and the arc-shaped belt (201) are provided with a containing cavity (5), the bearing plate (401) is inserted into the containing cavity (5), and the containing cavity (5) is internally provided with an oxidation piece (6) and heat insulation cotton (7).

6. The fixing structure according to claim 5, characterized in that the polygonal block (403) is provided with a round bar (11), the round bar (11) is provided with a protruding bar (9) on the side wall, the mounting plate (1) is provided with a fixing plate (8), the fixing plate (8) is provided with a phi-shaped groove (10) for the protruding bar (9) to pass through, and when the round bar (11) rotates until the projection of the protruding bar (9) on the fixing plate (8) is not coincident with the opening of the phi-shaped groove (10), the sliding of the round bar (11) in the phi-shaped groove (10) is restricted.

7. The fixing structure according to claim 6, wherein the lowest end of the sloping plate (306) is provided with a guide plate (13), and the vertical plate (303) is provided with a sliding groove (14) which is in sliding fit with the guide plate (13).

8. The fixation structure of claim 7, wherein a bungee cord (12) is mounted between the containment blocks (404).

9. A medical catheter joint for being connected with the fixing structure according to any one of the claims 1-8, characterized by comprising a tube body (15), wherein the tube body (15) is communicated with a medical catheter, a sliding ring plate (17) is arranged on the tube body (15) through a collision spring (16), a fixing ring plate (18) is also arranged on the tube body (15), a gap between the sliding ring plate (17) and the fixing ring plate (18) is used for accommodating a clamping plate (301), a plug rod (19) is arranged on the sliding ring plate (17), and a jack (20) for accommodating the plug rod (19) is arranged on the clamping plate (301).

10. Medical catheter joint according to claim 9, characterized in that the sliding ring plate (17) is provided with a rubber buckle (21), the rubber buckle (21) is provided with a hole channel (22), and one clamping plate (301) is provided with a protruding block (23) for being inserted into the hole channel (22).