Child use ectopic PICC catheter upper limb vein placement frame

Abstract

This invention discloses a pediatric PICC catheter upper limb venous placement stand, belonging to the field of medical device technology. It includes a compression head, an adjustment component mounted on one side of the compression head, an elastic strip fixedly mounted on the compression head, and telescopic tubes mounted on both sides of the elastic strip. A connecting tube is fixedly mounted on the end of the elastic strip away from the compression head, and a fixing tube is sleeved on the outside of the connecting tube. A driving component is mounted on the side of the fixing tube away from the elastic strip. The driving component includes a control block rotatably mounted inside the connecting cavity, an air inlet slot through one side of the control block, and an air inlet through the end of the fixing tube away from the elastic strip. This invention, through its adjustment component, allows staff to easily adjust the position of the catheter head, accurately changing the direction of the PICC catheter head when passing through venous branches, thus enabling the PICC catheter to move accurately to the designated position.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to a pediatric PICC catheter upper limb venous placement stand to prevent ectopic placement. Background Technology

[0002] A PICC (Peripherally Inserted Central Catheter) is a deep vein catheter inserted through a peripheral vein and terminated in a central vein. It is suitable for medium- to long-term intravenous infusion, chemotherapy, parenteral nutrition, and intravenous infusion in elderly patients, providing them with medium- to long-term intravenous therapy. Therefore, PICC catheters remain in the patient's body for an extended period, typically from 7 days to 1 year. Most PICC catheters are inserted through a vein in the patient's upper limb, with the tip positioned in the superior vena cava after insertion.

[0003] When staff insert a PICC catheter into a vein, the tip is difficult to control due to its soft nature. When the PICC catheter tip passes through a venous junction, it is easy for the tip to deviate, resulting in PICC catheter displacement. Traditional PICC catheter upper limb vein placement frames are difficult to help staff accurately adjust the position of the PICC catheter tip, resulting in poor performance. Summary of the Invention

[0004] In view of the problems in the existing vascular display instruments that are difficult to fix the irradiation position when used by children and that needles are prone to deviation, the purpose of this invention is to provide a pediatric anti-displacement PICC catheter upper limb vein placement stand.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A pediatric PICC catheter upper limb venous placement stand includes a compression head, an adjustment component mounted on one side of the compression head, and the adjustment component adjusts the orientation of the compression head. The adjustment component includes an elastic strip fixedly mounted on the compression head and telescopic tubes mounted on both sides of the elastic strip. The end of the telescopic tube near the compression head is fixedly connected to the compression head, and a connecting tube is fixedly mounted on the end of the elastic strip away from the compression head. A fixing tube is sleeved on the outside of the connecting tube, and the connecting tube is slidably mounted inside the fixing tube. A driving component is mounted on the side of the fixing tube away from the elastic strip, and the driving component pushes the connecting tube to move inside the fixing tube.

[0007] The fixed tube has a connecting cavity on the side away from the elastic strip. The driving assembly includes a control block that is rotatably installed inside the connecting cavity. An air inlet groove is provided through one side of the control block, and an air inlet is provided through the end of the fixed tube away from the elastic strip. The position of the air inlet corresponds to the position of the air inlet groove.

[0008] Optionally, the size of the air inlet groove is larger than the size of the air inlet, and a ball valve is installed at the end of the fixed tube away from the elastic strip via a flexible hose. The ball valve is used to supply air to the inside of the fixed tube.

[0009] Optionally, a partition strip is fixedly installed inside the connecting pipe, which divides the inside of the connecting pipe into two air delivery chambers, and the ends of the two telescopic pipes away from the extrusion head are respectively connected to the inside of the two air delivery chambers.

[0010] Optionally, a plurality of extrusion rods are fixedly installed on the outer wall of the extrusion head. The extrusion rods are elastic and are inclinedly arranged on the outer wall of the extrusion head. The extrusion rods are used to extrude the inner wall of the PICC catheter.

[0011] Optionally, the control block is further provided with two air outlet slots, and the inner wall of the connecting cavity is provided with an air outlet at a position corresponding to the air outlet slot.

[0012] Optionally, the fixed tube is provided with two extension tubes inside. One end of the extension tube near the air outlet is connected to the air outlet located inside the fixed tube, and the other end of the extension tube passes through the end of the connecting tube and is connected to the air delivery chamber inside it.

[0013] Optionally, a connecting bracket is fixedly installed at the lower end of one side of the fixed tube, and a slide rail is fixedly installed on one side of the connecting bracket. A slider is slidably installed inside the slide rail, and the slider engages with the recessed part on the PICC conduit.

[0014] Optionally, the end of the fixed tube away from the ball valve has a wide-mouth structure, and a stop block is slidably installed on one side of the wide-mouth portion of the fixed tube away from the ball valve. One end of the stop block has an inclined structure, and the outer wall of the connecting tube has a concave-convex structure. The stop block and the concave-convex portion on the outer wall of the connecting tube are pressed into contact.

[0015] Optionally, a compression spring is fixedly installed at the end of the stop block away from the connecting pipe, and the other end of the compression spring is fixedly connected to the inner wall of the fixed pipe. The compression spring is used to compress the stop block.

[0016] Optionally, the extrusion head has a hollow structure inside and is filled with fluorescent dye.

[0017] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0018] In the above scheme, the adjustable components make it easy for staff to adjust the position of the catheter tip. When passing through a branch of a vein, the direction of the PICC catheter tip can be accurately changed, so that the PICC catheter can be accurately moved to the designated position.

[0019] The elastic strip can automatically reset the PICC catheter tip after adjustment, allowing it to continue moving along the blood vessel. This avoids the squeezing head constantly pressing on the PICC catheter tip, which could cause the PICC catheter tip to tilt and increase the difficulty of insertion.

[0020] The separation strips and extension tubes, along with the ball valve, allow operators to quickly adjust the orientation of the extrusion head, enabling the PICC catheter head to move in different directions and follow a predetermined route.

[0021] The stopper allows the connecting tube to vibrate slightly as it moves, and this vibration is transmitted to the tip of the PICC catheter, preventing the PICC catheter tip from being blocked by the inner wall of the blood vessel during insertion. Attached Figure Description

[0022] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the fixed tube of the present invention;

[0025] Figure 3 This is a schematic diagram of the air inlet and air outlet of the present invention.

[0026] Figure 4 This is a schematic diagram of the separator strip structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the slider part of the present invention;

[0028] Figure 6 This is a schematic diagram of the telescopic tube and elastic strip of the present invention;

[0029] Figure 7 This is a schematic diagram of the extrusion head and extrusion rod structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the stop block structure of the present invention.

[0031] [Figure Labels]

[0032] 1. Fixed tube; 101. Connecting cavity; 102. Air inlet; 103. Air outlet; 104. Extension tube; 105. Connecting frame; 106. Slide rail; 107. Slider; 108. Stop; 109. Compression spring;

[0033] 2. Adjustment component; 201. Elastic strip; 202. Telescopic tube; 203. Connecting tube; 204. Separator strip; 205. Air supply chamber;

[0034] 3. Extrusion head; 301. Extrusion rod;

[0035] 4. Drive assembly; 401. Control block; 402. Air inlet; 403. Hose; 404. Ball valve; 405. Air outlet.

[0036] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0037] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more comprehensive, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0038] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0039] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0040] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0041] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0042] like Figures 1 to 8 As shown, this embodiment of the invention provides a pediatric PICC catheter upper limb venous placement stand, including a compression head 3, and an adjustment component 2 installed on one side of the compression head 3. The adjustment component 2 is used to adjust the orientation of the compression head 3. Figure 6 As shown, the adjustment component 2 includes an elastic strip 201 fixedly installed on the extrusion head 3 and telescopic tubes 202 installed on both sides of the elastic strip 201. The two ends of the telescopic tubes 202 are fixedly connected to the extrusion head 3 and the connecting tube 203, respectively. The two ends of the elastic strip 201 are fixedly connected to the extrusion head 3 and the connecting tube 203, respectively. A fixed tube 1 is sleeved on the outside of the connecting tube 203. The connecting tube 203 is slidably installed inside the fixed tube 1. A drive component 4 is installed on the side of the fixed tube 1 away from the elastic strip 201. The drive component 4 is used to push the connecting tube 203 to move inside the fixed tube 1.

[0043] like Figure 3 As shown, a connecting cavity 101 is formed inside the fixed tube 1 on the side away from the elastic strip 201. The drive assembly 4 includes a control block 401 rotatably installed inside the connecting cavity 101. An air inlet groove 402 is formed through one side of the control block 401, and an air inlet 102 is formed through the end of the fixed tube 1 away from the elastic strip 201. The position of the air inlet 102 corresponds to the position of the air inlet groove 402. The size of the air inlet groove 402 is larger than the size of the air inlet 102. A ball valve 404 is connected to the end of the fixed tube 1 away from the elastic strip 201 via a flexible hose 403. The ball valve 404 is used to supply air to the inside of the fixed tube 1. Figure 6 and Figure 7As shown, multiple extrusion rods 301 are fixedly installed on the outer wall of the extrusion head 3. The extrusion rods 301 have an elastic structure and are inclinedly arranged on the outer wall of the extrusion head 3. The extrusion rods 301 are used to extrude the inner wall of the PICC catheter.

[0044] By adopting the above technical solution, during use, the squeezing head 3 is inserted into the PICC catheter, and then the head of the PICC catheter is inserted into the patient's vein. Then, the ball valve 404 is squeezed, allowing air in the ball valve 404 to enter the fixed tube 1. When the air enters the fixed tube 1, it can push the connecting tube 203 to move. After the connecting tube 203 moves, it can squeeze the elastic strip 201. At this time, the elastic strip 201 can squeeze the squeezing head 3, causing the squeezing head 3 to move. After the squeezing head 3 moves, the squeezing rod 301 on its outer wall can squeeze the inner wall of the PICC catheter, thereby causing the PICC catheter to move in the vein. During the squeezing process, the length of the telescopic tube 202 can be adjusted to squeeze the squeezing head 3, thereby causing the elastic strip 201 to bend, thus changing the orientation of the squeezing head 3. When the squeezing head 3 is located at the vascular intersection, the direction of the PICC catheter can be adjusted by changing the direction, avoiding the PICC catheter from shifting and failing to reach the designated position.

[0045] like Figure 3 and Figure 4 As shown, a partition strip 204 is fixedly installed inside the connecting pipe 203, dividing the inside of the connecting pipe 203 into two air delivery chambers 205. The ends of the two telescopic pipes 202 away from the extrusion head 3 are respectively connected to the inside of the two air delivery chambers 205. Two air outlet grooves 405 are also provided on the control block 401, which penetrate the control block 401. An air outlet 103 is provided on the inner wall of the connecting cavity 101 at a position corresponding to the air outlet groove 405. Two extension pipes 104 are provided inside the fixed pipe 1. The end of the extension pipe 104 near the air outlet 103 is connected to the air outlet 103 located inside the fixed pipe 1, and the other end of the extension pipe 104 penetrates the end of the connecting pipe 203 and is connected to the inside of the air delivery chamber 205.

[0046] By adopting the above technical solution, when it is necessary to change the direction of the PICC conduit end, rotating the ball valve 404 causes the hose 403 to rotate. The rotation of the hose 403 drives the control block 401 to rotate, which in turn changes the position of the air inlet slot 402. When the control block 401 rotates a certain angle, the air inlet slot 402 can simultaneously connect with the air inlet 102 and one of the air outlets 103. At this time, squeezing the ball valve 404 causes the air in the ball valve 404 to enter the air inlet 102 and the air outlet 103 through the air inlet slot 402. Inside the air outlet 103, at this time, some air can enter the fixed pipe 1 to push the connecting pipe 203 to move, and another part of the air can enter the extension pipe 104 through the air outlet 103, and then enter one of the air supply chambers 205 through the extension pipe 104, and then enter the telescopic pipe 202 connected to it through the air supply chamber 205, so that the telescopic pipe 202 is extended. After one of the telescopic pipes 202 is extended, it can squeeze one side of the extrusion head 3. When the extrusion forces on both sides of the extrusion head 3 are different, the extrusion head 3 can drive the elastic strip 201 to deform, thereby deforming relative to the connecting pipe.

[0047] When the extrusion head 3 moves to the branchless part again, the ball valve 404 is rotated to the initial position. Then, the control block 401 is rotated to the initial state through the hose 403. At this time, the elastic strip 201 can make the extrusion head 3 rotate in the initial direction under its own elasticity, and the extrusion head 3 squeezes the extended telescopic tube 202, so that the air in the telescopic tube 202 enters the air delivery chamber 205 and the extension tube 104. When the control block 401 is rotated to the initial position, the air outlet groove 405 will correspond to the position of the air outlet 103, so that the air in the air delivery chamber 205 flows out.

[0048] like Figure 1 , Figure 2 and Figure 5 As shown, a connecting bracket 105 is fixedly installed on the lower end of one side of the fixed tube 1, and a slide rail 106 is fixedly installed on one side of the connecting bracket 105. A slider 107 is slidably installed inside the slide rail 106, and the slider 107 engages with the recessed part on the PICC conduit.

[0049] By adopting the above technical solution, when inserting the PICC catheter into the patient's vein, after aligning the concave part on the PICC catheter with the position of the slider 107, pressing the handle of the PICC catheter makes the PICC catheter and the slider 107 fit tightly together. Then, by pushing the PICC catheter, the concave part on the PICC catheter can squeeze the slider 107, causing the slider 107 to move along the direction of the groove, thereby making it easier for the staff to control the insertion direction of the PICC catheter.

[0050] like Figure 2 and Figure 8 As shown, the end of the fixed pipe 1 away from the ball valve 404 has a wide-mouth structure, and a stop 108 is slidably installed on one side of the wide-mouth portion of the fixed pipe 1 away from the ball valve 404. One end of the stop 108 has an inclined structure, and the outer wall of the connecting pipe 203 has a concave-convex structure. The stop 108 and the concave-convex portion on the outer wall of the connecting pipe 203 are in pressure contact. One end of the compression spring 109 is fixedly installed at the end of the stop 108 away from the connecting pipe 203. The other end of the compression spring 109 is fixedly connected to the inner wall of the fixed pipe 1. The compression spring 109 is used to compress the stop 108.

[0051] By adopting the above technical solution, during the movement of the connecting tube 203, the protruding part on its surface can squeeze the stop 108, thereby causing the stop 108 to retract into the fixed tube 1 and squeeze the compression spring 109. When the concave part on its surface corresponds to the position of the stop 108, the compression spring 109 can squeeze the stop 108, causing the stop 108 to push the connecting tube 203, thereby causing the connecting tube 203 to vibrate. This allows the compression head 3 and the end of the PICC catheter inserted into the vein to vibrate, preventing the end of the PICC catheter from being blocked by the blood vessel and making it difficult to continue insertion.

[0052] The squeezing head 3 has a hollow internal structure and contains fluorescent dye. By employing this technical solution, when the PICC catheter is inserted into a vein, the vein is illuminated using a vascular monitor. Because the squeezing head 3 contains fluorescent dye, the color displayed on the squeezing head 3 differs from the color displayed on the vein during vascular monitoring. This facilitates the operator's determination of the PICC catheter tip's location and helps identify the location of vascular branches.

[0053] The pediatric anti-displacement PICC catheter upper limb venous placement stand provided by this invention is used as follows:

[0054] In use, the blood vessel is illuminated with a vascular display device to make it appear in color. Then, the squeezing head 3 is inserted into the PICC catheter. The recessed part on the PICC catheter is aligned with the slider 107 and pressed down. Then, the operator squeezes the ball valve 404 while slowly pushing the PICC catheter. After the air in the ball valve 404 enters the fixed tube 1, it pushes the connecting tube 203 to move. This, in turn, squeezes the squeezing head 3 through the elastic strip 201, causing the squeezing head 3 to move towards the vein. When the PICC catheter reaches the branch of the blood vessel, the ball valve 404 is rotated so that the air inside enters the telescopic tube 202 through different air supply chambers 205. After the air enters the telescopic tube 202, it can extend the telescopic tube 202, thereby squeezing one side of the squeezing head 3. This causes the squeezing head 3 to rotate relative to the connecting tube 203, which makes it easier for the operator to adjust the direction of the PICC catheter end and avoid errors in the direction of the PICC catheter end, ensuring the accuracy and safety of the PICC catheter insertion process.

[0055] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the preferred embodiments, while those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0056] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A pediatric PICC catheter anti-ectopic insertion stent for upper limb vein placement, comprising a compression head, characterized in that: An adjustment component is installed on one side of the extrusion head to adjust the orientation of the extrusion head. The adjustment component includes an elastic strip fixedly installed on the extrusion head and telescopic tubes installed on both sides of the elastic strip. The end of the telescopic tube near the extrusion head is fixedly connected to the extrusion head. A connecting tube is fixedly installed on the end of the elastic strip away from the extrusion head. A fixed tube is sleeved on the outside of the connecting tube. The connecting tube is slidably installed inside the fixed tube. A drive component is installed on the side of the fixed tube away from the elastic strip to push the connecting tube to move inside the fixed tube. The fixed tube has a connecting cavity on the side away from the elastic strip. The driving component includes a control block that is rotatably installed inside the connecting cavity. An air inlet groove is provided through one side of the control block, and an air inlet is provided through the end of the fixed tube away from the elastic strip. The position of the air inlet corresponds to the position of the air inlet groove. A partition strip is fixedly installed inside the connecting pipe, which divides the inside of the connecting pipe into two air delivery chambers. The ends of the two telescopic pipes away from the extrusion head are respectively connected to the inside of the two air delivery chambers. The control block is also provided with two air outlet slots, and the inner wall of the connecting cavity is provided with an air outlet at the position corresponding to the air outlet slot; The fixed tube has two extension tubes inside. One end of the extension tube near the air outlet is connected to the air outlet located inside the fixed tube, and the other end of the extension tube passes through the end of the connecting tube and is connected to the air delivery chamber inside it.

2. The pediatric anti-ectopic PICC catheter upper limb venous placement stand according to claim 1, characterized in that, The size of the air inlet groove is larger than the size of the air inlet. The end of the fixed tube away from the elastic strip is connected to a ball valve via a flexible hose. The ball valve is used to supply air into the fixed tube.

3. The pediatric anti-ectopic PICC catheter upper limb venous placement stand according to claim 2, characterized in that, Multiple extrusion rods are fixedly installed on the outer wall of the extrusion head. The extrusion rods are elastic and are inclinedly arranged on the outer wall of the extrusion head. The extrusion rods are used to extrude the inner wall of the PICC catheter.

4. The pediatric anti-ectopic PICC catheter upper limb venous placement stand according to claim 3, characterized in that, A connecting bracket is fixedly installed on the lower end of one side of the fixed tube, and a slide rail is fixedly installed on one side of the connecting bracket. A slider is slidably installed inside the slide rail, and the slider engages with the recessed part on the PICC conduit.

5. The pediatric anti-ectopic PICC catheter upper limb venous placement stand according to claim 4, characterized in that, The end of the fixed tube away from the ball valve has a wide-mouth structure, and a stop block is slidably installed on one side of the wide-mouth portion of the fixed tube away from the ball valve. One end of the stop block has an inclined structure, and the outer wall of the connecting tube has a concave-convex structure. The stop block and the concave-convex portion on the outer wall of the connecting tube are in pressure contact.

6. The pediatric anti-ectopic PICC catheter upper limb venous placement stand according to claim 5, characterized in that, A compression spring is fixedly installed at one end of the stop block away from the connecting pipe, and the other end of the compression spring is fixedly connected to the inner wall of the fixed pipe. The compression spring is used to compress the stop block.

7. The pediatric anti-ectopic PICC catheter upper limb venous placement stand according to claim 6, characterized in that, The extrusion head has a hollow internal structure and is filled with fluorescent dye.

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