A venous therapy catheter positioning device

Abstract

The application belongs to the technical field of catheter positioning, and particularly relates to a venous treatment catheter positioning device, which comprises a transfusion support, a positioning assembly for fixing a catheter and a transfusion bottle fixer, the transfusion bottle fixer is fixed at the upper end of the transfusion support, the positioning assembly is fixed at the middle part of the transfusion support and is located directly below the transfusion bottle fixer, the positioning assembly is a U-shaped frame structure, both side inner walls of the U-shaped frame structure are provided with air bags, and both ends of the air bag are respectively connected with an injection port and a release port. In the application, heating of transfusion is combined with positioning of the catheter and can be performed synchronously, a small flow pipe on a shunt is connected with the injection port of the air bag, hot air is filled into the air bag, the air bag is expanded to position the catheter, the air bag has a certain softness under the filling of the hot air, and thus the transfusion is not blocked when the catheter is clamped and positioned, and the positioning effect is better.

Description

Technical Field

[0001] This invention relates to a catheter positioning device, specifically to a device for positioning an intravenous treatment catheter. Background Technology

[0002] Central venous catheters (CPCs) are a type of vascular catheter placed in a large vein. Intravenous therapy has become one of the most important and common nursing techniques in clinical care, with PICC (also known as central venous catheter) insertion and medium- to long-length catheter placement being widely used in clinical practice. A CPC is inserted through a peripheral vein puncture in the elbow or upper arm, then connects to the superior vena cava, allowing for direct drug delivery. It is suitable for patients undergoing long-term chemotherapy, dialysis, or fluid replacement. Therefore, the catheter cannot be removed in a short period after insertion, and patients need to maintain their lives with the catheter.

[0003] However, since the catheter needs to be with the patient at all times, the patient needs to be constantly vigilant to prevent the catheter from moving and to avoid it being pulled or snagged by foreign objects, which could damage the connection between the catheter and the limb and lead to infection. Furthermore, due to the catheter's flexibility, using clips or clamps for positioning can easily compress the catheter, causing infusion obstruction. Therefore, this invention designs an intravenous catheter positioning device that facilitates patient infusion, getting up, and moving. Summary of the Invention

[0004] The main objective of this disclosure is to provide a device for positioning intravenous catheters to effectively solve the problems raised by the inventors in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A catheter positioning device for intravenous therapy includes an infusion stand, a positioning component for fixing the catheter, and an infusion bottle holder. The infusion bottle holder is fixed to the upper end of the infusion stand, and the positioning component is fixed to the middle of the infusion stand and located directly below the infusion bottle holder. The positioning component is a U-shaped frame structure, and inflatable bladders are installed on both inner walls of the U-shaped frame structure. The two ends of the inflatable bladders are respectively connected to an injection port and a release port for inflating and deflating the inflatable bladders, and the catheter passes between the two inflatable bladders.

[0007] Preferably, a number of anti-sway components are also fixed on one side of the infusion stand where the positioning component is installed. The anti-sway component is a semi-circular cavity structure, and the inner wall of the anti-sway component is provided with an adsorption hole communicating with its cavity. The outer side of the anti-sway component is provided with a connection port, and the inner end of the connection port leads to the cavity.

[0008] Preferably, a bracket is fixedly installed on the infusion stand, a heating box and an exhaust fan are fixedly installed on the bracket, a heating plate is installed inside the heating box, one pipe of the exhaust fan is connected to the heating box, and another pipe is fixedly connected to a flow divider. A high-flow tube is fixedly connected to the flow divider. An infusion bottle holder has an infusion bottle placement hole inside, and the upper opening size of the infusion bottle placement hole is larger than the lower opening size. The other end of the high-flow tube is connected to the infusion bottle holder and is connected to the infusion bottle placement hole.

[0009] Preferably, a small flow tube is also fixedly connected to the flow divider. The end of the small flow tube away from the flow divider is Y-shaped and is connected to the injection ports of the two inflatable bladders respectively.

[0010] Preferably, a mounting plate is fixedly connected to the top of the heating box, a drive motor is fixedly installed in the middle of the top surface of the mounting plate, a dispersing shaft is fixedly connected to the motor shaft end of the drive motor, and the lower end of the dispersing shaft extends through the mounting plate into the heating box and is fixedly connected to a disturbance blade.

[0011] Preferably, the mounting plate has three side cavities arranged in a ring array on its side, and each side cavity has a T-shaped pipe fixedly connected to its outlet. The other two passages of the T-shaped pipe are each equipped with a one-way valve, which is used for one-way air intake and one-way air exhaust, respectively. The air intake end of the T-shaped pipe can be connected to the outer end of the connection port of the anti-sway component through an external connecting pipe.

[0012] Preferably, a magnetic piston is slidably installed in the side cavity, and a magnetic element is embedded on the side of the magnetic piston away from the side cavity outlet. The mounting plate has a moving chamber that communicates with each side cavity. The portion of the dispersing shaft located in the moving chamber is fixedly connected to three strong magnetic blocks arranged in a ring array. The strong magnetic blocks cooperate with the magnetic element, wherein the magnetic poles of two of the strong magnetic blocks are opposite. If one strong magnetic block is magnetically attracted to the magnetic element, then the other strong magnetic block is magnetically repelled by the magnetic element.

[0013] Preferably, the anti-sway components and positioning components are arranged from top to bottom along the axis of the infusion stand, and the catheter passes through each anti-sway component.

[0014] Preferably, the inner wall of the release port is fixedly connected to two symmetrically arranged mounting blocks, and a reset shaft is rotatably mounted in each of the two mounting blocks. A baffle is fixedly connected to each of the two reset shafts, and the other sides of the two baffles are in contact with each other. A torsion spring is sleeved on the reset shaft, and the two ends of the torsion spring are respectively fixed to the mounting block and the baffle.

[0015] In view of this, compared with the prior art, the beneficial effects of the present invention are:

[0016] (i) In this application, the infusion bottle is placed upside down in the infusion bottle placement hole on the infusion bottle holder. During intravenous treatment, the catheter is connected to the infusion bottle and inserted into the patient's vein. At this time, the catheter is extended into each anti-sway component to prevent the catheter from shaking easily. Initially, both balloons are in an uninflated state. The catheter is moved between the two balloons and then inflated, thereby positioning the catheter between the two balloons. The catheter hangs down from top to bottom to avoid bending or knotting, which is conducive to the infusion process. The space between the catheter and the infusion stand is reduced to decrease the possibility of the catheter being pulled or hooked by foreign objects.

[0017] (ii) In this application, the infusion bottle can also be heated during treatment to appropriately increase the temperature of the drug solution and alleviate the discomfort of cold drug solution infusion. When heating, the heating plate is turned on, and the exhaust fan sends the heat in the heating box into the infusion bottle placement hole through the pipeline, distributor and high flow tube to heat the infusion bottle and ensure that the temperature of the drug solution inside is within a suitable range. This is especially suitable for use in winter and provides patients with a comfortable intravenous treatment effect.

[0018] (III) In this application, the heating of the infusion is combined with the positioning of the catheter, and they can be carried out simultaneously. The small flow tube on the shunt is connected to the injection port of the inflatable balloon, so that hot air is filled into the inflatable balloon, which then expands to position the catheter. The inflatable balloon has a certain degree of flexibility when filled with hot air, so that the infusion will not be obstructed when clamping and positioning the catheter, and the positioning effect is better.

[0019] (iv) In this application, under the drive of the drive motor, it can also be associated with the anti-sway component. The dispersion shaft drives each strong magnetic block to rotate. When the strong magnetic block approaches the magnetic piston, the magnetic piston will move in the side cavity under the magnetic action of the two. Since two of the three strong magnetic blocks have opposite magnetic poles, when the strong magnetic blocks with different magnetic poles approach the magnetic piston, their movement direction will be opposite, so that the magnetic piston will slide back and forth in the side cavity and draw in air through the suction end of the three-way pipe and exhaust air through the exhaust end. Each suction end is connected to the connection port through the connecting pipe, so that the adsorption hole continuously draws in air. Under its attraction, the tubing is always located in the anti-sway component, so that when the infusion stand is moved, the tubing will not easily swing or shake, thus ensuring its stability. Attached Figure Description

[0020] Figure 1 The diagram shown is a schematic diagram of the intravenous catheter positioning device provided by the present invention.

[0021] Figure 2 The image shown is a top view of the positioning component;

[0022] Figure 3 The image shown is a top view of the anti-sway component;

[0023] Figure 4 The image shown is a 3D view of the anti-sway component;

[0024] Figure 5 The image shown is a top sectional view of the infusion bottle holder;

[0025] Figure 6 As shown Figure 1 A schematic diagram of a local structure in the image;

[0026] Figure 7 The diagram shows the internal structure of the mounting plate and heating chamber.

[0027] Figure 8 The image shown is a top sectional view of the installation disk;

[0028] Figure 9 The image shown is a cross-sectional view of the release port;

[0029] Figure 10 As shown Figure 9 A diagram illustrating another state.

[0030] icon:

[0031] 1-Infusion stand; 2-Positioning component; 201-Inflatable bladder; 202-Injection port; 203-Release port; 2031-Fixing block; 2032-Baffle; 2033-Torsion spring; 3-Anti-sway component; 301-Adsorption hole; 302-Connection port; 4-Infusion bottle holder; 5-Bracket; 6-Heating box; 601-Heating plate; 7-Exhaust fan; 8-Diverter; 9-High flow tube; 10-Low flow tube; 11-Mounting plate; 12-Drive motor; 120-Dispersion shaft; 13-Disturbance blade; 14-Side cavity; 15-Magnetic piston; 16-T-way pipe; 17-Strong magnetic block. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figure 1-10 The present invention provides the following embodiments:

[0034] A catheter positioning device for intravenous therapy includes an infusion stand 1, a positioning component 2 for fixing the catheter, and an infusion bottle holder 4. The infusion bottle holder 4 is fixed to the upper end of the infusion stand 1, and the positioning component 2 is fixed to the middle of the infusion stand 1 and located directly below the infusion bottle holder 4. The positioning component 2 has a U-shaped frame structure, and inflatable bladders 201 are installed on the inner walls of both sides of the U-shaped frame structure. The two ends of the inflatable bladders 201 are respectively connected to an injection port 202 and a release port 203 for inflating and deflating the inflatable bladders 201. The catheter passes between the two inflatable bladders 201. Several anti-sway components 3 are also fixed on one side of the infusion stand 1 where the positioning component 2 is installed. The anti-sway components 3 have a semi-circular hollow structure, and the inner wall of the anti-sway component 3 has an adsorption hole 301 communicating with its cavity. The anti-sway component 3 has a connection port 302 on its outer side, and the inner end of the connection port 302 leads to the chamber. The inner wall of the release port 203 is fixedly connected to two symmetrically arranged mounting blocks 2031, and a reset shaft is rotatably installed in each of the two mounting blocks 2031. A baffle 2032 is fixedly connected to each of the two reset shafts, and the other sides of the two baffles 2032 are in contact with each other. A torsion spring 2033 is sleeved on the reset shaft, and the two ends of the torsion spring 2033 are fixed to the mounting block 2031 and the baffle 2032 respectively. When the small flow tube 10 continuously inflates the airbag 201, the internal pressure increases, forcing the two baffles 2032 to rotate. Then the two baffles 2032 separate, opening the release port 203 and releasing the pressure inside the airbag 201, preventing it from continuing to increase and causing damage.

[0035] Specifically, a bracket 5 is fixedly installed on the infusion stand 1, and a heating box 6 and an exhaust fan 7 are fixedly installed on the bracket 5. A heating plate 601 is installed inside the heating box 6. One pipe on the exhaust fan 7 is connected to the heating box 6, and another pipe is fixedly connected to a diverter 8. A high-flow pipe 9 is fixedly connected to the diverter 8. An infusion bottle holder 4 has an infusion bottle placement hole inside, and the upper opening size of the infusion bottle placement hole is larger than its lower opening size. The other end of the high-flow pipe 9 is connected to the infusion bottle holder 4 and is connected to the infusion bottle placement hole. A low-flow pipe 10 is also fixedly connected to the diverter 8. The end of the low-flow pipe 10 away from the diverter 8 is Y-shaped and is connected to the injection port 202 of the two inflatable bladders 201 respectively.

[0036] Specifically, a mounting plate 11 is fixedly connected to the top of the heating box 6. A drive motor 12 is fixedly installed in the middle of the top surface of the mounting plate 11. A dispersion shaft 120 is fixedly connected to the motor shaft end of the drive motor 12. The lower end of the dispersion shaft 120 passes through the mounting plate 11, extends into the heating box 6, and is fixedly connected to a disturbance blade 13. Three side cavities 14 are arranged in a ring array on the side of the mounting plate 11. A three-way pipe 16 is fixedly connected to the outlet of each side cavity 14. One-way valves are installed in the other two passages of the three-way pipe 16. The two one-way valves are used for one-way air intake and one-way air exhaust, respectively. The intake end of the three-way pipe 16 can be connected to the outer end of the connection port 302 of the anti-sway component 3 through the external connecting pipe. A magnetic piston 15 is slidably installed in the side cavity 14, and a magnetic element is embedded on the side of the magnetic piston 15 away from the outlet of the side cavity 14. The mounting plate 11 has a moving chamber that communicates with each side cavity 14. The part of the dispersing shaft 120 located in the moving chamber is fixedly connected to three strong magnetic blocks 17 arranged in a ring array. The strong magnetic blocks 17 cooperate with the magnetic element. The magnetic poles of two of the strong magnetic blocks 17 are opposite. If one strong magnetic block 17 is attracted to the magnetic element, the other strong magnetic block 17 is repelled by the magnetic element.

[0037] Specifically, the anti-sway assembly 3 and the positioning assembly 2 are arranged from top to bottom along the axis of the infusion stand 1, and the catheter passes through each anti-sway assembly 3, so that the catheter hangs down in an orderly manner.

[0038] The specific implementation method of this embodiment is as follows: The infusion bottle is placed upside down in the infusion bottle placement hole on the infusion bottle holder 4. During intravenous treatment, the catheter is connected to the infusion bottle and inserted into the patient's vein. At this time, the catheter extends into each anti-sway component 3 to prevent the catheter from shaking easily. Initially, both air balloons 201 are in an uninflated state. The catheter is moved between the two air balloons 201 and then inflated, thereby positioning the catheter between the two air balloons 201. The catheter hangs down from top to bottom to avoid bending or knotting, which is conducive to the infusion process. The space between the catheter and the infusion stand 1 is reduced to reduce the possibility of the catheter being pulled or hooked by foreign objects.

[0039] During treatment, the infusion bottle can also be heated to appropriately increase the temperature of the medication, thereby alleviating the discomfort of cold medication infusion. When heating, the heating plate 601 is turned on, and the exhaust fan 7 sends the heat in the heating box 6 through the pipeline, the distributor 8 and the high-flow pipe 9 into the infusion bottle placement hole to raise the temperature of the infusion bottle and ensure that the temperature of the medication inside is within a suitable range. This is especially suitable for use in winter, providing patients with a comfortable intravenous treatment effect.

[0040] A novel approach combines infusion heating with catheter positioning, and these processes can be performed simultaneously. The small-flow tube 10 on the shunt 8 is connected to the injection port 202 of the inflatable balloon 201, allowing hot air to fill the balloon 201 and inflate it to position the catheter. The inflatable balloon 201, filled with hot air, has a certain degree of flexibility, thus preventing obstruction of the infusion when clamping and positioning the catheter, resulting in better positioning.

[0041] The drive motor 12 can drive the dispersion shaft 120 and the disturbance blade 13 to rotate, so that the heat in the heating box 6 can flow and ensure the heating effect;

[0042] Based on the above, driven by the drive motor 12, it can also be associated with the anti-sway component 3. The dispersion shaft 120 drives each strong magnetic block 17 to rotate. When the strong magnetic block 17 approaches the magnetic piston 15, the magnetic piston 15 will move in the side cavity 14 under the magnetic action of the two. Since two of the three strong magnetic blocks 17 have opposite magnetic poles, when the strong magnetic blocks 17 with different magnetic poles approach the magnetic piston 15, their movement directions will be opposite, so that the magnetic piston 15 will slide back and forth in the side cavity 14 and draw in air through the suction end of the three-way pipe 16 and exhaust air through the exhaust end. Each suction end is connected to the connection port 302 through the connecting pipe, so that the adsorption hole 301 continuously draws in air. Under its attraction, the tube is always located in the anti-sway component 3, so that when the infusion stand 1 is moved, the tube will not easily swing or shake, thus ensuring its stability.

[0043] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for positioning intravenous catheters, characterized in that: The device includes an infusion stand (1), a positioning component (2) for fixing the catheter, and an infusion bottle holder (4). The infusion bottle holder (4) is fixed at the upper end of the infusion stand (1). The positioning component (2) is fixed in the middle of the infusion stand (1) and located directly below the infusion bottle holder (4). The positioning component (2) is a U-shaped frame structure, and an inflatable bladder (201) is installed on both inner walls of the U-shaped frame structure. The two ends of the inflatable bladder (201) are respectively connected to an injection port (202) and a release port (203) for inflating and deflating the inflatable bladder (201). The catheter passes between the two inflatable bladders (201). On the side where the positioning component (2) is installed on the infusion stand (1), a number of anti-sway components (3) are also fixed. The anti-sway component (3) is a semi-circular cavity structure, and the inner wall of the anti-sway component (3) is provided with an adsorption hole (301) communicating with its cavity. The outer side of the anti-sway component (3) is provided with a connection port (302), and the inner end of the connection port (302) leads to the cavity. A bracket (5) is fixedly installed on the infusion stand (1). A heating box (6) and a fan (7) are fixedly installed on the bracket (5). A heating plate (601) is installed inside the heating box (6). One pipe on the fan (7) is connected to the heating box (6), and another pipe is fixedly connected to a distributor (8). A high-flow pipe (9) is fixedly connected to the distributor (8). An infusion bottle holder (4) has an infusion bottle placement hole inside, and the upper opening size of the infusion bottle placement hole is larger than the lower opening size. The other end of the high-flow pipe (9) is connected to the infusion bottle holder (4) and connected to the infusion bottle placement hole. The top of the heating box (6) is fixedly connected to a mounting plate (11), and a drive motor (12) is fixedly installed in the middle of the top surface of the mounting plate (11). A dispersing shaft (120) is fixedly connected to the motor shaft end of the drive motor (12), and the lower end of the dispersing shaft (120) extends through the mounting plate (11) into the heating box (6) and is fixedly connected to a disturbance blade (13). The mounting plate (11) has three side cavities (14) arranged in a ring array on its side, and each side cavity (14) is fixedly connected to a three-way pipe (16) at its outlet. The other two passages of the three-way pipe (16) are equipped with one-way valves, and the two one-way valves are used for one-way air intake and one-way air exhaust, respectively. The air intake end of the three-way pipe (16) can be connected to the outer end of the connection port (302) of the anti-sway component (3) through an external connecting pipe. A magnetic piston (15) is slidably installed in the side cavity (14), and a magnetic element is embedded on the side of the magnetic piston (15) away from the outlet of the side cavity (14). A moving chamber communicating with each side cavity (14) is opened in the mounting plate (11). Three strong magnetic blocks (17) arranged in a ring array are fixedly connected to the part of the dispersing shaft (120) located in the moving chamber. The strong magnetic blocks (17) cooperate with the magnetic element.

2. The intravenous catheter positioning device according to claim 1, characterized in that: A small flow tube (10) is also fixedly connected to the flow divider (8). The end of the small flow tube (10) away from the flow divider (8) is Y-shaped and is connected to the injection port (202) of the two inflatable bags (201).

3. The intravenous catheter positioning device according to claim 1, characterized in that: The magnetic poles of the two strong magnetic blocks (17) are opposite. If one strong magnetic block (17) is attracted to the magnetic component, the other strong magnetic block (17) is repelled by the magnetic component.

4. The intravenous catheter positioning device according to claim 1, characterized in that: The anti-sway assembly (3) and the positioning assembly (2) are arranged from top to bottom along the axis of the infusion stand (1), and the catheter passes through each anti-sway assembly (3).

5. A positioning device for intravenous treatment catheters according to claim 2, characterized in that: The inner wall of the release port (203) is fixedly connected to two symmetrically arranged mounting blocks (2031), and a reset shaft is rotatably installed in each of the two mounting blocks (2031). A baffle (2032) is fixedly connected to each of the two reset shafts, and the other sides of the two baffles (2032) are in contact with each other. A torsion spring (2033) is sleeved on the reset shaft, and the two ends of the torsion spring (2033) are fixed to the mounting block (2031) and the baffle (2032) respectively.

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