Fixing device with monitoring function for internal jugular vein indwelling catheter

Abstract

The invention discloses a fixing device with a monitoring function for an internal jugular vein indwelling catheter, and belongs to the technical field of medical equipment.The fixing device comprises a cap body, an adjusting assembly, a dustproof moving part, an installation part, a catheter collecting assembly and a monitoring limiting assembly, one end of the installation part is pasted on a collar, and the monitoring limiting assembly is installed on the surface of the right end of the installation part; the monitoring limiting assemblies are arranged in pairs, the pipe collecting assemblies are arranged between the two monitoring limiting assemblies in pairs, the adjusting assembly is arranged on the head of the human body in a sleeving mode, the outer surface of the adjusting assembly is in transmission connection with dustproof moving parts, the two dustproof moving parts are connected through a connecting rod, and the cap body is arranged on the outer sides of the adjusting assembly and the dustproof moving parts. The problems that in the prior art, due to the fact that a fixing device of the internal jugular vein indwelling catheter cannot be hidden and a connecting piece is exposed in the air for a long time, the disinfection procedure of the connecting piece is complex, time is wasted, and the internal jugular vein indwelling catheter is likely to be seen are solved. And the universality, practicability and convenience of the device are improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to a fixing device for internal jugular vein catheterization with a monitoring function. Background Art

[0002] During dialysis, the internal jugular vein catheter needs to be connected to the dialysis equipment, and then the blood is pumped out. After the harmful substances in the blood are removed by the dialysis equipment, the blood is returned to the human body to complete the renal replacement therapy for patients with acute and chronic renal failure.

[0003] When the patient is undergoing dialysis treatment, the plug at the end of the connector is removed, and then the dialysis tube installation position is disinfected before the dialysis tube is inserted. The problem with this operation is that the connector is exposed to the air for a long time, and the disinfection operation requires the disinfection of the entire connector. The operation process is too cumbersome, which wastes both the patient's time and the medical staff's time. Moreover, the patient usually lies on the bed during dialysis, and the position of the connector will make the patient feel uncomfortable. At the same time, the current way of fixing the connector is generally to tie it to a rope, and the rope is wrapped around the patient's head. In this case, even if the patient feels that the rope is too tight, he cannot adjust it by himself. At the same time, dialysis is a long-term treatment method, and treatment is required several times a week. In this case, the patient cannot be hospitalized for a long time, and can come to the hospital for treatment when dialysis is needed. However, the use of internal jugular vein catheterization requires the patient to install the internal jugular vein catheter on the body for a long time, which results in the internal jugular vein catheter being exposed to the outside world when the patient goes out, and when others see it, it will cause psychological pressure on the patient.

[0004] Therefore, how to provide a fixing device for internal jugular vein catheterization with a monitoring function to solve the defects of the existing fixing devices for internal jugular vein catheterization is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] To this end, the present invention provides a fixing device for internal jugular vein catheterization with a monitoring function to solve the problems in the prior art that the fixing device for internal jugular vein catheterization cannot be hidden and the connecting parts are exposed to the air for a long time, resulting in a complicated and time-consuming disinfection procedure for the connecting parts and the internal jugular vein catheterization being easily visible.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention discloses a fixing device for internal jugular vein catheterization with monitoring function, comprising:

[0008] A mounting piece, one end of which is attached to the collar, and a monitoring limit assembly is mounted on the right end surface of the mounting piece, and the monitoring limit assembly is arranged in pairs;

[0009] The tube collecting assembly is arranged in pairs and is installed on the right surface of the mounting member, and the tube collecting assembly is arranged between the two monitoring limit assemblies;

[0010] An adjustment component is sleeved on the human head, and a dust-proof moving part is drivingly connected to the outer surface of the adjustment component. The dust-proof moving parts are arranged in pairs, and two of the dust-proof moving parts are connected by a connecting rod;

[0011] A cap body, arranged outside the adjusting assembly and the dustproof moving part;

[0012] Among them, one end of the blood transfusion tube is set in the human body's neck blood vessel, the blood transfusion tube passes through the tube collection component and the monitoring limit component, the other end of the blood transfusion tube is connected with a connecting piece, and the connecting piece is installed in the dust-proof movable part. A pressure sensor is set in the monitoring limit component, and the pressure sensor is closely attached to the outer wall of the blood transfusion tube.

[0013] In a possible implementation, the monitoring limit assembly includes:

[0014] A connecting block is mounted on the right surface of the mounting member, and a plurality of movable holes are formed on the connecting block, wherein the first threaded rod and the limiting rod are transmission-connected in the movable holes;

[0015] A moving block is mounted on the surface of one end of the first threaded rod and the limiting rod, an arc groove is opened at one end of the moving block, a pressure sensor is attached to the arc surface of the arc groove, a signal converter is arranged inside the moving block, and the signal converter is connected to the pressure sensor through a wire;

[0016] The connecting rods are arranged in pairs and mounted on the right surface of the mounting member. A mounting block is mounted between the two connecting rods. A rectangular groove is opened on the surface of one end of the mounting block. A pressure block is transmission-connected in the rectangular groove. A pressure sensor is attached to the surface of one end of the pressure block.

[0017] The second threaded rod is transmission-connected to the mounting block, one end of the second threaded rod is mounted on the mounting block, the signal converter is mounted in the second threaded rod, and the signal converter is connected to the pressure sensor via the wire.

[0018] In a possible implementation, the dust-proof moving part includes:

[0019] An installation shell has an installation space formed inside, a threaded hole is provided above the installation space, and the upper end of the connector is inserted into the threaded hole;

[0020] A plurality of movable grooves are provided in the mounting housing, the movable grooves are arranged above the threaded holes, and snap rings are installed in the movable grooves;

[0021] A moving rod is drivingly connected to the clamping ring, one end surface of the moving rod is inserted in the arc baffle, four arc baffles are spliced ​​into a disc, and the bottom surface of the disc is in contact with the connecting piece;

[0022] A dialysis tube mounting hole is provided on the upper surface of the mounting housing and extends above the disc;

[0023] The return spring is sleeved on the moving rod, and the two ends of the return spring are respectively connected to the surface of the clamping ring and the side surface of the arc-shaped baffle.

[0024] In a possible implementation, the adjustment component includes:

[0025] An adjusting ring, one end of which is provided with a connecting shell, a mounting groove is provided in the connecting shell, a belt is provided on the other end of the adjusting ring, a rack is provided on the outer surface of the belt;

[0026] An adjusting rod, one end of which is inserted into the mounting groove, and the other end of which passes through the bottom of the connecting shell;

[0027] A gear is sleeved on the adjusting rod, the rack is meshed with the gear, and the belt is wound around the gear;

[0028] The adjusting groove is arranged on the outer surface of the adjusting ring. The outer surface of the adjusting ring is also affixed with Velcro, and the Velcro is arranged on the side of the adjusting groove.

[0029] In a possible implementation, a water-absorbing sponge is attached to the inner surface of the adjustment ring.

[0030] In a possible implementation, the tube receiving assembly includes:

[0031] A fixed plate is installed in a slide groove provided on the surface of the mounting member, and a movable plate is drivingly connected in the slide groove;

[0032] A mounting rod is mounted on the surface of one end of the fixed plate and the movable plate, and a clamping block is mounted on the surface of the other end of the mounting rod, and the blood transfusion tube is clamped between the two clamping blocks;

[0033] A top plate is mounted on the surface of the mounting piece, a lead screw is inserted on the surface of the top plate, the other end of the lead screw passes through the fixed plate and the movable plate, and a knob is mounted on the end thereof.

[0034] In a possible implementation, a sliding block is provided on the surface of the connecting rod, and the sliding block is drivingly connected to the adjusting assembly.

[0035] In a possible implementation, Velcro is provided on the left surface of the mounting piece, the surface of the collar, and the inner surface of the cap body.

[0036] In a possible implementation, the cap body and the brim are made of a plastic material.

[0037] The present invention adopts the design that the dust-proof movable part is movable on the adjustment component. According to the position of the patient lying during dialysis, the dust-proof movable part can be adjusted with the connecting part to prevent the patient from squeezing the connecting part or the connecting part hitting the patient, thereby avoiding the patient from feeling uncomfortable. The dust-proof movable part replaces the plug to effectively prevent the connecting part from contacting with the air, thereby avoiding complicated operations during the disinfection of the connecting part. At the same time, the limiting component is monitored to squeeze the blood transfusion tube to control the blood flow rate. When squeezing the blood transfusion tube, a pressure sensor is attached to the side wall of the blood transfusion tube. When blood flows through the blood transfusion tube, the blood pressure is applied to the side wall of the pipeline. The pressure sensor receives the blood pressure signal for real-time monitoring. The mounting part is mounted on the collar. The entire device can be completely shielded by flipping the collar and the cap body. Excess pipelines can be collected by the tube collection component to prevent the pipeline from being entangled. The design of the adjustment component allows the patient to adjust the tightness independently. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] 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.

[0039] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0040] Figure 1 A stereoscopic diagram of the fixing device for internal jugular vein catheterization with monitoring function provided by the present invention;

[0041] Figure 2 A three-dimensional diagram of the monitoring limit assembly provided by the present invention;

[0042] Figure 3 A cross-sectional view of the dust-proof moving part provided by the present invention;

[0043] Figure 4 A cross-sectional view of the adjustment assembly provided by the present invention;

[0044] Figure 5 A three-dimensional diagram of the tube receiving assembly provided by the present invention;

[0045] In the figure: 1 cap body; 2 adjustment assembly; 21 adjustment slot; 22 connecting shell; 23 adjustment rod; 24 rack; 25 belt; 26 adjustment ring; 3 dustproof moving part; 31 arc baffle; 32 snap ring; 33 mounting shell; 34 moving rod; 35 reset spring; 36 dialysis tube mounting hole; 4 mounting part; 5 tube receiving assembly; 51 fixing plate; 52 clamping block; 53 mounting rod; 54 top plate; 55 lead screw; 56 moving plate; 6 monitoring limit assembly; 61 connecting block; 62 first threaded rod; 63 limit rod; 64 moving block; 65 pressure block; 66 second threaded rod; 67 mounting block; 68 connecting rod. DETAILED DESCRIPTION

[0046] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are 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.

[0047] Please refer to Figure 1-Figure 5 Now, a fixing device for internal jugular vein catheterization with monitoring function disclosed in the present invention is described. The present invention is composed of six parts, such as Figure 1 , including a cap body 1, an adjusting component 2, a dustproof moving part 3, a mounting component 4, a tube receiving component 5 and a monitoring limit component 6, one end of the mounting component 4 is pasted on the collar, a monitoring limit component 6 is installed on the right end surface of the mounting component 4, the monitoring limit component 6 is arranged in pairs, the tube receiving component 5 is arranged in pairs, and is installed on the right surface of the mounting component 4, the tube receiving component 5 is arranged between two monitoring limit components 6, the adjusting component 2 is sleeved on the human head, the outer surface of the adjusting component 2 is connected with a dustproof moving part 3 in a transmission manner, the dustproof moving parts 3 are arranged in pairs, and the two dustproof moving parts 3 are connected by a connecting rod, the cap body 1 is arranged on the outside of the adjusting component 2 and the dustproof moving part 3, one end of the blood transfusion tube is arranged in the blood vessel of the human neck, the blood transfusion tube passes through the tube receiving component 5 and the monitoring limit component 6, the other end of the blood transfusion tube is connected with a connecting part, the connecting part is installed in the dustproof moving part 3, a pressure sensor is arranged in the monitoring limit component 6, and the pressure sensor is closely attached to the outer wall of the blood transfusion tube.

[0048] When the present invention is in use, one end of the blood transfusion tube is inserted into the internal jugular vein of the human body by means of a catheter, and then the adjustment component 2 is worn on the patient's head, and the mounting component 4 is attached to the collar of the clothes, and then the two blood transfusion tube bodies are clamped on the monitoring limit component 6 respectively. The blood transfusion tube is clamped by rotating the first threaded rod 62 to move the moving block 64, and the arc surface of the arc groove and the surface of the mounting block 67 clamp the blood transfusion tube. At the same time of clamping, the pressure sensor is attached to the side wall of the blood transfusion tube to measure the pressure of the blood flow on the side wall of the blood transfusion tube when the blood flows in the blood transfusion tube. The pressure signal is converted into a wireless signal through a signal converter and fed back to the blood pressure meter. Each pressure on the side wall of the pipeline corresponds to a blood pressure signal, and finally the blood pressure condition is fed back through the blood pressure meter to achieve the purpose of real-time monitoring of blood pressure. After the blood transfusion tube is clamped, the connecting component is screwed into the dustproof moving component 3, and the connection method is through a thread. When the patient needs to go out, the patient can stand by the collar, and then the pipe can be coiled and stuck on the pipe receiving assembly 5. After the patient has moved the dustproof movable member 3, the cap body 1 is attached to the outside of the dustproof movable member 3 and the adjusting assembly 2, and the brim of the cap is turned down. Figure 1 As shown in the figure, the adjustment method of the adjustment component 2 is to rotate the adjustment rod 23 so that the gear moves with the rack 24, and the belt 25 will also move accordingly. After the belt 25 moves, the two ends of the adjustment ring 26 are close to each other, so that the diameter of the circle formed by the adjustment ring 26 becomes smaller. The patient can adjust the diameter of the adjustment ring 26 according to his or her comfort when wearing it.

[0049] In a specific embodiment, Figure 2The monitoring limit assembly 6 includes a connecting block 61, a first threaded rod 62, a limit rod 63, a moving block 64, a pressing block 65, a second threaded rod 66, a mounting block 67 and a connecting rod 68. The connecting block 61 is mounted on the right surface of the mounting member 4. The connecting block 61 is provided with a plurality of moving holes. The first threaded rod 62 and the limit rod 63 are connected in a transmission manner in the moving holes. The moving block 64 is mounted on the surface of one end of the first threaded rod 62 and the limit rod 63. An arc groove is provided at one end of the moving block 64. A pressure sensor is attached to the arc surface of the arc groove. A signal converter is provided inside the moving block 64. The signal converter and the pressure sensor are connected by wires. The connecting rods 68 are arranged in pairs and installed on the right surface of the mounting member 4. A mounting block 67 is installed between the two connecting rods 68. A rectangular groove is opened on the surface of one end of the mounting block 67. A pressure block 65 is transmission-connected in the rectangular groove. A pressure sensor is attached to the surface of one end of the pressure block 65. The second threaded rod 66 is transmission-connected in the mounting block 67. One end of the second threaded rod 66 is installed on the mounting block 67. A signal converter is installed in the second threaded rod 66. The signal converter and the pressure sensor are connected by wires. When the blood pressure in the blood transfusion tube needs to be changed, the first threaded rod 62 is rotated and cooperated with the connecting block 61. During the rotation process, the first threaded rod 62 gradually pushes the moving block 64 to move, and the limiting rod 63 is designed to prevent the moving block 64 from rotating so that the moving block 64 squeezes the blood transfusion tube. The arc groove is designed for the design of the blood transfusion tube. The arc groove is used to prevent the blood transfusion tube from sliding when squeezing the blood transfusion tube. The design purpose of the pressing block 65 is that the arc groove cannot completely clamp the blood transfusion tube. At this time, the second threaded rod 66 is used to push the pressing block 65 toward the blood transfusion tube so that the pressing block 65 cooperates with the arc surface of the arc groove to complete the clamping of the blood transfusion tube. The complete clamping is used to prevent blood backflow after stopping blood drawing. When the two pressure sensors are attached to the surface of the blood transfusion tube, the blood will exert pressure on the side wall of the blood transfusion tube when flowing through, and the pressure sensor receives the pressure signal. The pressure signal is transmitted to the signal converter through the wire, and finally the signal converter converts the signal into a wireless signal for transmission. As for how to generate different pressure signals, the blood circulation area is changed by squeezing the blood transfusion tube, thereby changing the blood pressure flow rate. Different blood pressure flow rates will produce different pressure values ​​on the wall of the blood transfusion tube.

[0050] In a specific embodiment, Figure 3The dustproof movable part 3 includes an arc-shaped baffle plate 31, a snap ring 32, a mounting shell 33, a movable rod 34, a reset spring 35 and a dialysis tube mounting hole 36. An mounting space is opened inside the mounting shell 33, and a threaded hole is arranged above the mounting space. The upper end of the connector is inserted into the threaded hole. A plurality of movable grooves are opened in the mounting shell 33. The movable grooves are arranged above the threaded holes. A snap ring 32 is installed in the movable groove. The movable rod 34 is transmission-connected in the snap ring 32. One end surface of the movable rod 34 is inserted in the arc-shaped baffle plate 31. Four arc-shaped baffle plates 31 are spliced ​​into a disc. The bottom surface of the disc contacts the connector. The dialysis tube mounting hole 36 is opened on the upper surface of the mounting shell 33 and extends above the disc. The reset spring 35 is sleeved on the movable rod 34. The two ends of the reset spring 35 are respectively connected to the surface of the snap ring 32 and the side surface of the arc-shaped baffle plate 31. When the dialysis tube plug is inserted from the dialysis tube mounting hole 36, the arc-shaped baffle 31 will be squeezed to move toward the moving groove, and the moving rod 34 will move toward the moving groove at the same time. After the four arc-shaped baffles 31 move, the socket at the upper end of the connector is exposed. When the plug is inserted into the socket, the reset spring 35 will always remain in a compressed state. When the plug is inserted into the socket, the reset spring 35 pushes the arc-shaped baffle 31 to move toward the plug. The four arc-shaped baffles 31 clamp the plug under the action of elastic force to prevent the plug from falling off during the dialysis process. After the plug is pulled out, the spring quickly resets the arc-shaped baffle 31 to form a disc blocking the top of the socket to prevent dust and impurities from falling in. When performing disinfection operations, insert the disinfection cotton swab along the dialysis tube mounting hole 36. After scrubbing is completed, the spring quickly resets the arc-shaped baffle 31 to form a disc blocking the top of the socket to continue dust prevention.

[0051] In a specific embodiment, Figure 4 The adjustment assembly 2 includes an adjustment groove 21, a connecting shell 22, an adjustment rod 23, a rack 24, a belt 25 and an adjustment ring 26. The connecting shell 22 is installed on one end of the adjusting ring 26, and a mounting groove is opened in the connecting shell 22. The belt 25 is installed on the other end of the adjusting ring 26. The rack 24 is installed on the outer surface of the belt 25. One end of the adjusting rod 23 is inserted in the mounting groove, and the other end of the adjusting rod 23 passes through the bottom of the connecting shell 22. The gear is set on the adjusting rod 23, and the rack 24 is meshed with the gear. The belt 25 is wound on the gear. The adjustment groove 21 is opened on the outer surface of the adjusting ring 26, and the outer surface of the adjusting ring 26 is also affixed with Velcro, which is set on the side of the adjustment groove 21. The use of the rack 24 and the gear transmission can make the diameter of the ring surrounded by the adjusting ring 26 larger, and can be adapted to more patients. In addition, this method can achieve fine adjustment, which is more comfortable to wear, and the design of the Velcro makes it easier to disassemble the cap body 1.

[0052] In a specific embodiment, a water-absorbing sponge is attached to the inner surface of the adjusting ring 26. The water-absorbing sponge is designed to absorb the patient's sweat and prevent the sweat from soaking the patient's skin.

[0053] In a specific embodiment, Figure 5 The tube receiving assembly 5 includes a fixed plate 51, a clamping block 52, a mounting rod 53, a top plate 54, a lead screw 55 and a movable plate 56. The fixed plate 51 is installed in a slide groove opened on the surface of the mounting member 4, and the movable plate 56 is connected in a transmission manner in the slide groove. The mounting rod 53 is installed on the surface of one end of the fixed plate 51 and the movable plate 56, and a clamping block 52 is installed on the surface of the other end of the mounting rod 53. The blood transfusion tube is clamped between the two clamping blocks 52. The top plate 54 is installed on the surface of the mounting member 4. A lead screw 55 is inserted on the surface of the top plate 54. The other end of the lead screw 55 passes through the fixed plate 51 and the movable plate 56, and a knob is installed at the end. When the tube receiving assembly 5 is in use, the knob is turned to rotate the lead screw 55, and the external thread structure of the lead screw 55 drives the internal thread structure in the moving plate 56 to operate, so that the moving plate 56 moves along the lead screw 55. The design of the top plate 54 avoids the translation of the lead screw 55, and the movement of the moving plate 56 makes the two clamping blocks 52 approach each other and clamp the blood transfusion tube. At the same time, the movable design of the moving plate 56 allows the clamping blocks 52 to clamp blood transfusion tubes of different diameters. Figure 1 The figure shows the storage state of the blood transfusion tube.

[0054] In a specific embodiment, a slider is provided on the surface of the connecting rod, and the slider is transmission-connected to the adjusting assembly 2. The design purpose of the slider is to facilitate the movement of the two dust-proof moving parts 3.

[0055] In a specific embodiment, Velcro is provided on the left surface of the mounting member 4, the collar surface and the inner surface of the cap body 1. The Velcro design facilitates the installation between the cap body 1, clothing and the fixing device.

[0056] In a specific embodiment, the brim of the cap body 1 is made of a plastic material, which facilitates the folding of the brim so that the brim can completely cover the blood transfusion tube.

[0057] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A fixation device for internal jugular vein catheterization with monitoring function, characterized in that: include: A mounting member (4) having one end adhered to the collar, a monitoring limit assembly (6) being mounted on the right end surface of the mounting member (4), and the monitoring limit assembly (6) being arranged in pairs; The tube collecting components (5) are arranged in pairs and are installed on the right surface of the mounting member (4). The tube collecting components (5) are arranged between the two monitoring limiter components (6); An adjustment component (2) is sleeved on a human head, and a dustproof moving part (3) is drivingly connected to the outer surface of the adjustment component (2). The dustproof moving parts (3) are arranged in pairs, and two of the dustproof moving parts (3) are connected via a connecting rod. A cap body (1) is arranged outside the adjustment component (2) and the dustproof moving part (3); One end of the blood transfusion tube is arranged in a blood vessel in the neck of a human body, the blood transfusion tube passes through the tube receiving assembly (5) and the monitoring limit assembly (6), the other end of the blood transfusion tube is connected to a connecting piece, the connecting piece is installed in the dustproof movable piece (3), a pressure sensor is arranged in the monitoring limit assembly (6), and the pressure sensor is closely attached to the outer wall of the blood transfusion tube.

2. The internal jugular vein catheter fixing device with monitoring function as claimed in claim 1, characterized in that: The monitoring limit assembly (6) comprises: A connecting block (61) is mounted on the right surface of the mounting member (4); a plurality of movable holes are formed on the connecting block (61); a first threaded rod (62) and a limiting rod (63) are transmission-connected in the movable holes; A moving block (64) is mounted on the surface of one end of the first threaded rod (62) and the limiting rod (63); an arc groove is formed at one end of the moving block (64); a pressure sensor is attached to the arc surface of the arc groove; a signal converter is arranged inside the moving block (64); and the signal converter is connected to the pressure sensor via a wire; The connecting rods (68) are arranged in pairs and mounted on the right surface of the mounting member (4). A mounting block (67) is mounted between the two connecting rods (68). A rectangular groove is formed on one end surface of the mounting block (67). A pressure block (65) is drivingly connected in the rectangular groove. A pressure sensor is attached to one end surface of the pressure block (65). The second threaded rod (66) is transmission-connected to the mounting block (67), one end of the second threaded rod (66) is mounted on the mounting block (67), the signal converter is mounted in the second threaded rod (66), and the signal converter is connected to the pressure sensor via the wire.

3. The internal jugular vein catheter fixing device with monitoring function as claimed in claim 1, characterized in that: The dustproof moving part (3) comprises: An installation shell (33) is provided with an installation space inside, a threaded hole is provided above the installation space, and the upper end of the connecting member is inserted into the threaded hole; A plurality of movable grooves are provided in the mounting housing (33), the movable grooves are arranged above the threaded holes, and snap rings (32) are installed in the movable grooves; A moving rod (34) is drivingly connected to the clamping ring (32), one end surface of the moving rod (34) is inserted into the arc-shaped baffle (31), four arc-shaped baffles (31) are spliced ​​into a disc, and the bottom surface of the disc is in contact with the connecting piece; A dialysis tube mounting hole (36) is provided on the upper surface of the mounting housing (33) and extends above the disc; The return spring (35) is sleeved on the moving rod (34), and the two ends of the return spring (35) are respectively connected to the surface of the clamping ring (32) and the side surface of the arc-shaped baffle (31).

4. The internal jugular vein catheter fixing device with monitoring function as claimed in claim 1, characterized in that: The regulating component (2) comprises: An adjusting ring (26) has a connecting shell (22) installed on one end surface, a mounting groove is provided in the connecting shell (22), a belt (25) is installed on the other end surface of the adjusting ring (26), and a rack (24) is installed on the outer surface of the belt (25); An adjusting rod (23), one end of which is inserted into the mounting groove, and the other end of which passes through the bottom of the connecting shell (22); A gear is sleeved on the adjusting rod (23), the rack (24) is meshingly connected with the gear, and the belt (25) is wound around the gear; The adjustment groove (21) is provided on the outer surface of the adjustment ring (26), and the outer surface of the adjustment ring (26) is also affixed with Velcro, which is arranged on the side of the adjustment groove (21).

5. The internal jugular vein catheter fixing device with monitoring function as claimed in claim 4, characterized in that: The inner surface of the adjusting ring (26) is affixed with a water-absorbing sponge.

6. The internal jugular vein catheter fixing device with monitoring function as claimed in claim 1, characterized in that: The tube receiving assembly (5) comprises: A fixed plate (51) is mounted in a slide groove provided on the surface of the mounting member (4), wherein a movable plate (56) is transmission-connected in the slide groove; A mounting rod (53) is mounted on the surface of one end of the fixed plate (51) and the movable plate (56); a clamping block (52) is mounted on the surface of the other end of the mounting rod (53); and the blood transfusion tube is clamped between the two clamping blocks (52); A top plate (54) is mounted on the surface of the mounting member (4), a lead screw (55) is inserted into the surface of the top plate (54), the other end of the lead screw (55) passes through the fixed plate (51) and the movable plate (56), and a knob is installed at the end.

7. The internal jugular vein catheter fixing device with monitoring function as claimed in claim 1, characterized in that: A sliding block is arranged on the surface of the connecting rod, and the sliding block is drivingly connected to the adjusting component (2).

8. The internal jugular vein catheter fixing device with monitoring function as claimed in claim 1, characterized in that: The left surface of the mounting piece (4), the surface of the collar and the inner surface of the cap body (1) are provided with Velcro.

9. The internal jugular vein catheterization fixing device with monitoring function as claimed in claim 1, characterized in that: The brim of the cap body (1) is made of a plastic material.

Images