CN111569230B

CN111569230B - Central venous catheter implants and uses auxiliary device with function is taken off in antiskid

Info

Publication number: CN111569230B
Application number: CN202010502393.1A
Authority: CN
Inventors: 孔国强; 李硕果; 江涛; 孙佳春; 任婧; 王新帅
Original assignee: First Affiliated Hospital of Henan University of Science and Technology
Current assignee: First Affiliated Hospital of Henan University of Science and Technology
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2022-03-11
Anticipated expiration: 2040-06-05
Also published as: CN111569230A

Abstract

The invention discloses an auxiliary device with an anti-slipping function for implanting a central venous catheter, which comprises a central venous catheter, wherein a connecting block and an installation block are fixedly connected to the central venous catheter, fixed blocks are connected to two ends of the bottom of the connecting block, the connecting block and the fixed blocks are connected through fixing bolts, a transmission mechanism and a traveling mechanism are connected to the bottom of the central venous catheter, and a stabilizing mechanism and a heat preservation mechanism are connected to the top of the installation block on the side surface of the central venous catheter. According to the invention, through the matching work of the transmission mechanisms, the driving motor is operated to drive the two sliding guide wheels to slowly roll on the arms of a patient when the central venous catheter is used for injection, the rolling sliding guide wheels provide a driving force for the movement of the central venous catheter, so that the movement of the central venous catheter is facilitated, and the central venous catheter is correspondingly facilitated to be guided into a target blood vessel along a guide wire until the target blood vessel reaches a desired position.

Description

Central venous catheter implants and uses auxiliary device with function is taken off in antiskid

Technical Field

The invention relates to the technical field of central venous catheters, in particular to an auxiliary device with an anti-slipping function for implanting a central venous catheter.

Background

The central venous catheter belongs to one of intravascular tubes, is placed in a large vein, can measure the central venous pressure, is used for evaluating circulation physiological parameters, estimating the quantity of body fluid and the like, can also be used for massive and rapid venous transfusion or long-term parenteral nutrition and antibiotic injection, establishes a good transfusion channel for a patient who is repeatedly transfused, and avoids the pain of repeated puncture and the like.

The tip of the central venous catheter is positioned in the superior vena cava and close to the right atrium junction, after the existing central venous catheter enters a target blood vessel through a puncture needle, a guide path is established, then the central venous catheter enters the target blood vessel along a guide wire until the central venous catheter reaches an expected position, the central venous catheter cannot be stably placed on the body of a patient, and the catheter has the risk of automatically sliding off.

Disclosure of Invention

The invention aims to solve the defect that a central venous catheter cannot be stably placed on the body of a patient in the prior art, and provides an auxiliary device with an anti-slipping function for implanting the central venous catheter, so that the central venous catheter is integrally more stable, and the central venous catheter is helpful for guiding a guide wire to enter a target blood vessel until the central venous catheter reaches an expected position.

In order to achieve the purpose, the invention adopts the following technical scheme:

an auxiliary device with an anti-slipping function for implanting a central venous catheter comprises a central venous catheter, wherein a connecting block and an installation block are fixedly connected to the central venous catheter, two ends of the bottom of the connecting block are connected with fixing blocks, the connecting block and the fixing blocks are connected through fixing bolts, and the bottom of the central venous catheter is connected with a transmission mechanism and a travelling mechanism;

the transmission mechanism comprises a motor fixedly connected to the bottom of the mounting block through a plurality of basic threads, the bottom of the mounting block is fixedly connected with a fixed plate, the output end of the motor is fixedly connected with a transmission rod, one end of the transmission rod is rotatably connected with the fixed plate, a rotating groove is formed between the two fixed blocks, the inner side wall of the rotating groove is rotatably connected with a rotating rod, the outer side walls of the rotating rod and the transmission rod are fixedly sleeved with transmission wheels, and the two transmission wheels are in transmission connection through a transmission belt;

the walking mechanism comprises a transmission groove formed in the rotation groove, a sliding guide wheel is fixedly sleeved on the outer side wall of the rotation rod and is positioned in the transmission groove, the bottom of the sliding guide wheel protrudes and is higher than the motor and the rotation rod, and the outer side wall of the sliding guide wheel is in contact with a patient;

the top of the central venous catheter side mounting block is connected with the stabilizing mechanism and the heat preservation mechanism.

Preferably, the stabilizing mechanism comprises a first fixing box and a second fixing box which are connected to the top of the mounting block, the first fixing box and the second fixing box are provided with openings, the first fixing box and the second fixing box are located on two sides of the mounting block and are connected with the mounting block through transmission threads, a fixing strap is arranged inside the first fixing box, and the fixing strap stretches to pass around the arm of the patient and extends into the second fixing box.

Preferably, the inside of first fixed box rotates and is connected with the connecting axle, the winding of fixing bandage cup joints on the lateral wall of connecting axle, the cover is equipped with the torsional spring on the connecting axle lateral wall that is located the fixing bandage both ends, the both ends of torsional spring respectively with the inside wall of first fixed box and the lateral wall fixed connection of connecting axle.

Preferably, one end of the fixing strap is fixedly connected with a configuration block, a limit opening is formed in the configuration block, the top of the fixing strap is in threaded connection with a mounting bolt, and the end of the mounting bolt extends into the second fixing box and is in threaded connection with the fixing strap.

Preferably, the heat preservation mechanism comprises a water storage bag fixedly connected to the side face of the fixing binding band, the top of the connecting block is fixedly connected with a water storage tank, a water pump is fixedly connected inside the water storage tank, a water inlet is formed in the water storage tank, the side face of the water storage tank is communicated with a water guide pipe, one end, away from the water storage tank, of the water guide pipe extends into the water storage bag, and the water storage bag is communicated with the water storage tank through the water guide pipe.

Preferably, the outer side wall of the fixing bandage is externally connected with a fixing ring, the fixing ring is sleeved on the outer side wall of the water storage bag and tightly supports the water storage bag on the side surface of the fixing bandage.

Compared with the prior art, the invention has the beneficial effects that:

1. through the matching work between the transmission mechanisms, when the central venous catheter is used for injection, the driving motor operates to drive the two sliding guide wheels to slowly roll on the arms of a patient, the rolling sliding guide wheels provide a driving force for the movement of the central venous catheter, so that the movement of the whole central venous catheter is facilitated, the central venous catheter is correspondingly facilitated to be extended to guide the guide wire to enter a target blood vessel until the target blood vessel reaches a desired position, the sliding guide wheels which stop operating are further contacted on the arms of the patient, the friction force between the sliding guide wheels and the arms of the patient is large, and the central venous catheter can be prevented from slipping off the blood vessels of the patient preliminarily.

2. Through the cooperation between the stabilizing mechanism, make the fixing strap on the first fixed box walk around patient's arm and insert in the second fixed box, fix the fixing strap length at this moment through the construction bolt, the setting of fixing strap has guaranteed to wholly bind central venous catheter on patient's arm, makes central venous catheter wholly more stable, and the effectual condition of avoiding central venous catheter probably from patient's blood vessel landing takes place.

Drawings

FIG. 1 is a schematic structural diagram of an auxiliary device for central venous catheter implantation with anti-slip function according to the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic structural diagram of a central venous catheter of an auxiliary device for implanting a central venous catheter with an anti-slip function, which is provided by the invention; a

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is a schematic structural view of a water storage bag of an auxiliary device for central venous catheter implantation with an anti-slip function according to the present invention;

fig. 6 is a schematic structural diagram of an auxiliary device fixing block with an anti-slip function for central venous catheter implantation provided by the invention.

In the figure: the device comprises a central venous catheter 1, a connecting block 2, an installing block 3, a fixing block 4, a sliding guide wheel 5, a rotating rod 6, a transmission belt 7, a fixing plate 8, a transmission rod 9, a motor 10, a water storage tank 11, a water pump 12, a water guide pipe 13, a first fixing box 14, a second fixing box 15, a fixing binding belt 16, a fixing ring 17, an installing bolt 18, a limiting opening 19, a water storage bag 20, a connecting shaft 21 and a torsion spring 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-6, an auxiliary device for implanting a central venous catheter with an anti-slipping function comprises a central venous catheter 1, wherein a connecting block 2 and an installation block 3 are fixedly connected to the central venous catheter 1, two ends of the bottom of the connecting block 2 are both connected with fixing blocks 4, the connecting block 2 and the fixing blocks 4 are connected through fixing bolts, the bottom of the central venous catheter 1 is connected with a transmission mechanism and a walking mechanism, the transmission mechanism comprises a motor 10 fixedly connected to the bottom of the installation block 3 through a plurality of basic threads, the bottom of the installation block 3 is fixedly connected with a fixing plate 8, an output end of the motor 10 is fixedly connected with a transmission rod 9, one end of the transmission rod 9 is rotatably connected with the fixing plate 8, a rotating groove is formed between the two fixing blocks 4, a rotating rod 6 is rotatably connected to the inner side wall of the rotating groove, and driving wheels are fixedly sleeved on the outer side walls of the rotating rod 6 and the transmission rod 9, the two driving wheels are in transmission connection through a transmission belt 7, the walking mechanism comprises a transmission groove arranged on the rotation groove, the outer side wall of the rotation rod 6 is fixedly sleeved with a sliding guide wheel 5, the sliding guide wheel 5 is positioned in the transmission groove, the bottom of the sliding guide wheel 5 protrudes and is higher than the motor 10 and the rotation rod 6, the outer side wall of the sliding guide wheel 5 is in contact with a patient, through the cooperation between the transmission mechanisms, the central venous catheter 1 is driven to operate by the driving motor 10 during injection, the two sliding guide wheels 5 are driven to slowly roll on the arm of the patient, the rolling sliding guide wheel 5 provides a driving force for the central venous catheter 1 during movement, the integral movement of the central venous catheter 1 is facilitated, the central venous catheter 1 is correspondingly facilitated to be guided into a target blood vessel until the target blood vessel reaches a desired position, and the sliding guide wheel 5 which stops operating is further in contact with the arm of the patient, the friction between the sliding guide wheel 5 and the arm of the patient is large, so that the central venous catheter 1 can be prevented from sliding from the blood vessel of the patient.

The top of the side installation block 3 of the central venous catheter 1 is connected with a stabilizing mechanism and a heat preservation mechanism, the stabilizing mechanism comprises a first fixing box 14 and a second fixing box 15 which are connected with the top of the installation block 3, the first fixing box 14 and the second fixing box 15 are both provided with openings, the first fixing box 14 and the second fixing box 15 are positioned at two sides of the installation block 3 and are both connected with the installation block 3 through transmission threads, a fixing bandage 16 is arranged inside the first fixing box 14, the fixing bandage 16 is stretched to pass through the arm of a patient and extend into the second fixing box 15, the inside of the first fixing box 14 is rotatably connected with a connecting shaft 21, the fixing bandage 16 is wound and sleeved on the outer side wall of the connecting shaft 21, the outer side walls of the connecting shaft 21 at two ends of the fixing bandage 16 are sleeved with torsion springs 22, and two ends of the torsion springs 22 are respectively fixedly connected with the inner side wall of the first fixing box 14 and the outer side wall of the connecting shaft 21, one end of the fixing bandage 16 is fixedly connected with a configuration block, a limit opening 19 is formed in the configuration block, a mounting bolt 18 is connected to the top of the fixing bandage 16 in a threaded mode, the end portion of the mounting bolt 18 extends into the second fixing box 15 and is connected with the fixing bandage 16 in a threaded mode, the fixing bandage 16 on the first fixing box 14 is inserted into the second fixing box 15 by bypassing the arm of a patient through the matching work of the stabilizing mechanisms, the length of the fixing bandage 16 at the moment is fixed through the mounting bolt 18, the fixing bandage 16 is arranged to guarantee that the central venous catheter 1 is integrally bound on the arm of the patient, the central venous catheter 1 is integrally more stable, and the situation that the central venous catheter 1 possibly slides down from the blood vessel of the patient is effectively avoided.

The heat preservation mechanism comprises a water storage bag 20 fixedly connected to the side face of a fixing bandage 16, the top of the connecting block 2 is fixedly connected with a water storage tank 11, the interior of the water storage tank 11 is fixedly connected with a water pump 12, the water storage tank 11 is provided with a water inlet, the side face of the water storage tank 11 is communicated with a water guide pipe 13, one end, away from the water storage tank 11, of the water guide pipe 13 extends into the water storage bag 20, the water storage bag 20 is communicated with the water storage tank 11 through the water guide pipe 13, the outer side wall of the fixing bandage 16 is externally connected with a fixing ring 17, the fixing ring 17 is sleeved on the outer side wall of the water storage bag 20 and tightly supports the water storage bag 20 against the side face of the fixing bandage 16, the warm water in the water storage bag 20 is attached to the arm of the patient through the matching work of the heat preservation mechanisms, the liquid to be injected is subjected to heat preservation treatment, so that the temperature of the liquid flowing into the body of a patient is not too low, and the comfortable treatment of the patient is favorably realized.

According to the invention, after a central venous catheter 1 enters a target blood vessel through a puncture needle, a guide passage is established, then the central venous catheter 1 enters the target blood vessel along a guide wire until the target blood vessel reaches a desired position, a driving motor 10 is driven to work when the central venous catheter 1 moves, an output end of the motor 10 drives a transmission rod 9 to rotate, a transmission belt 7 is correspondingly driven by a transmission wheel to drive a rotating rod 6 to rotate, the rotating rod 6 drives two sliding guide wheels 5 on the rotating rod 6 to rotate, the two sliding guide wheels 5 are in contact with the arm of a patient, and the slowly-rotating sliding guide wheels 5 are in contact with the arm of the patient so as to drive the central venous catheter 1 to integrally and slowly move, so that the central venous catheter 1 is helped to guide the guide wire to enter the target blood vessel until the desired position is reached.

After the central venous catheter 1 is guided to a target blood vessel until a desired position is reached, the fixing band 16 is pulled out from the first fixing box 14, the redundant fixing band 16 is rotated and pulled out on the connecting shaft 21, the fixing band 16 is tied to the arm of a patient, then the end part of the fixing band 16 is inserted into the second fixing box 15, the mounting bolt 18 is screwed into the second fixing box 15 and screwed into the limiting opening 19 to limit and fix the length of the fixing band 16 at this time, then warm water can be filled into the water storage tank 11, water in the water storage tank 11 is driven by the water pump 12 to enter the water storage bag 20 on the side surface of the fixing band 16 through the water guide pipe 13, the water storage bag 20 is filled with the warm water, then the fixing ring 17 is fixedly sleeved on the fixing band 16, the edge of the water storage bag 20 is attached to the fixing band 16, the water storage bag 20 tied to the arm of the patient is kept at a temperature, correspondingly, the temperature of the injection is ensured to be raised, the water in the water storage tank 11 can be heated up freely from the outside, when the central venous catheter 1 is not used, warm water in the water storage bag 20 is extracted, then the mounting bolt 18 is unscrewed from the limiting opening 19, and the elongated torsion spring 22 drives the fixing bandage 16 to be integrally reset and contracted into the first fixing box 14.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The auxiliary device with the anti-slipping function for implanting the central venous catheter comprises a central venous catheter (1), and is characterized in that the central venous catheter (1) is fixedly connected with a connecting block (2) and a mounting block (3), two ends of the bottom of the connecting block (2) are connected with fixing blocks (4), the connecting block (2) and the fixing blocks (4) are connected through fixing bolts, and the bottom of the central venous catheter (1) is connected with a transmission mechanism and a travelling mechanism;

the transmission mechanism comprises a motor (10) fixedly connected to the bottom of the mounting block (3) through a plurality of basic threads, the bottom of the mounting block (3) is fixedly connected with a fixing plate (8), an output end of the motor (10) is fixedly connected with a transmission rod (9), one end of the transmission rod (9) is rotatably connected with the fixing plate (8), a rotating groove is formed between the two fixing blocks (4), the inner side wall of the rotating groove is rotatably connected with a rotating rod (6), the outer side walls of the rotating rod (6) and the transmission rod (9) are fixedly sleeved with transmission wheels, and the two transmission wheels are in transmission connection through a transmission belt (7);

the walking mechanism comprises a transmission groove formed in the rotation groove, the outer side wall of the rotation rod (6) is fixedly sleeved with a sliding guide wheel (5), the sliding guide wheel (5) is located in the transmission groove, the bottom of the sliding guide wheel (5) protrudes and is higher than the motor (10) and the rotation rod (6), and the outer side wall of the sliding guide wheel (5) is in contact with a patient;

the top of the side mounting block (3) of the central venous catheter (1) is connected with a stabilizing mechanism and a heat preservation mechanism.

2. An auxiliary device for central venous catheter implantation with anti-slipping function according to claim 1, characterized in that the stabilizing mechanism comprises a first fixing box (14) and a second fixing box (15) which are connected to the top of the mounting block (3), the first fixing box (14) and the second fixing box (15) are both provided with openings, the first fixing box (14) and the second fixing box (15) are positioned on both sides of the mounting block (3) and are both connected with the mounting block (3) through transmission threads, a fixing strap (16) is arranged inside the first fixing box (14), and the fixing strap (16) is elongated to pass around the arm of the patient and extend into the second fixing box (15).

3. The auxiliary device with the anti-slipping function for implanting the central venous catheter is characterized in that the first fixing box (14) is rotatably connected with a connecting shaft (21), the fixing bandage (16) is wound and sleeved on the outer side wall of the connecting shaft (21), a torsion spring (22) is sleeved on the outer side wall of the connecting shaft (21) at two ends of the fixing bandage (16), and two ends of the torsion spring (22) are fixedly connected with the inner side wall of the first fixing box (14) and the outer side wall of the connecting shaft (21) respectively.

4. The auxiliary device with the anti-slipping function for implanting the central venous catheter is characterized in that a configuration block is fixedly connected to one end of the fixing strap (16), a limiting opening (19) is formed in the configuration block, a mounting bolt (18) is connected to the top of the fixing strap (16) in a threaded mode, and the end portion of the mounting bolt (18) extends into the second fixing box (15) and is connected with the fixing strap (16) in a threaded mode.

5. The auxiliary device for implanting a central venous catheter with an anti-slipping function according to claim 4, wherein the heat preservation mechanism comprises a water storage bag (20) fixedly connected to the side surface of the fixing binding band (16), a water storage tank (11) is fixedly connected to the top of the connecting block (2), a water pump (12) is fixedly connected to the inside of the water storage tank (11), a water inlet is formed in the water storage tank (11), a water guide pipe (13) is communicated with the side surface of the water storage tank (11), one end, away from the water storage tank (11), of the water guide pipe (13) extends to the inside of the water storage bag (20), and the water storage bag (20) is communicated with the water storage tank (11) through the water guide pipe (13).

6. The auxiliary device for central venous catheter implantation with anti-slipping function according to claim 5, characterized in that the outer side wall of the fixing band (16) is externally connected with a fixing ring (17), the fixing ring (17) is sleeved on the outer side wall of the water storage bag (20) and presses the water storage bag (20) against the side surface of the fixing band (16).