A PICC catheter anti-slip fixation device

Abstract

This invention relates to the field of medical tool technology, and in particular to a PICC catheter anti-slip fixation device, comprising an "8"-shaped adhesive ring and a catheter positioned above the adhesive ring. A first and second tube-wrap cap are spaced apart on the center of the upper surface of the adhesive ring. The adhesive ring has evenly distributed square holes along its longitudinal direction. An elastic band is inserted through these square holes, extending to both ends of the adhesive ring and connected to an upper and lower pull strap, respectively. A fixing patch is connected to the center of the outer side of the lower pull strap. A lower and upper clamp are mounted on the center of the upper surface of the fixing patch, hinged together. A clamping hole is formed between the lower and upper clamps for inserting the initial segment of the external catheter. This device is rationally designed and effectively prevents displacement and leakage of the external PICC catheter during use. It also avoids tension damage to the skin while securing the external PICC catheter, thus extending the service life of the PICC catheter.

Description

Technical Field

[0001] This invention relates to the field of medical tool technology, and in particular to a PICC catheter anti-slip fixation device. Background Technology

[0002] PICC placement is a procedure that involves inserting a central venous catheter through a peripheral vein. It is a common, safe, and effective catheterization technique used in clinical chemotherapy patients. During the procedure, a vein is punctured at the elbow, and the PICC catheter is inserted through a sheath into the superior vena cava or subclavian vein. This facilitates the infusion of chemotherapy drugs, helps protect peripheral veins, and reduces the irritation of blood vessels by chemotherapy drugs.

[0003] Patients with PICC lines should undergo standardized PICC catheter care during the catheter's indwelling period to ensure catheter safety, prevent complications, and extend catheter usage time. Proper fixation of the exposed portion of the catheter is particularly important to effectively prevent related complications. The following problems exist during catheter indwelling: 1. Catheter displacement: During PICC catheter indwelling, improper fixation can cause the exposed portion of the catheter to move, leading to catheter dislodgement or swallowing. This can trigger related complications. If the catheter is swallowed more than 3cm, the tip may enter the atrium, causing arrhythmias, precordial discomfort, etc. Furthermore, the presence of the external catheter increases the risk of bloodstream infection; 2. Catheter breakage and leakage: Polyurea-based catheters are less flexible than silicone-based catheters in their external portion. If the catheter is improperly positioned or the dressing is not securely fixed, it can cause misalignment and angle formation, eventually leading to catheter breakage and infusion leakage. 3. Skin damage: Applying transparent dressings too tightly or stretching them before application can cause changes in skin tension under the dressing, resulting in erythema and blisters at the edges of the dressing, causing tension-related skin damage. 4. Severe bleeding or leakage at the puncture site: For patients with poor physical condition, malnutrition in late-stage cancer, or low platelet counts, if the dressing is not securely fixed and the infusion connector is fixed at a joint, repeated movement can pull on the catheter, worsening bleeding or leakage at the puncture site and increasing the risk of infection.

[0004] In clinical use, the aforementioned shortcomings still result in a short usage time for PICC catheters and a high risk of complications, which is detrimental to patient use. Therefore, there is an urgent need to develop a PICC catheter anti-slip fixation device to solve these problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the disadvantages existing in the prior art, and a PICC catheter anti-slip and fixation device is proposed, which can effectively prevent the displacement and liquid leakage of the external part of the PICC catheter during use, and avoid the situation of skin tension injury on the premise of forming fixation on the external part of the PICC catheter, improve the service life of the PICC catheter, and facilitate the use of patients.

[0006] To achieve the above object, the technical solution adopted by the present invention is: a PICC catheter anti-slip and fixation device, including a paste ring in the shape of an "8" and a catheter arranged above the paste ring. The middle part of the upper surface of the paste ring is equipped with a first tube winding cap and a second tube winding cap distributed at intervals; square holes are longitudinally and evenly opened on the paste ring, and an elastic band is inserted through the square holes of the paste ring. The two ends of the elastic band extending to the outside of the paste ring are respectively connected with an upper pulling band and a lower pulling band; the middle part of the outside of the lower pulling band is connected with a fixed patch. The middle part of the upper surface of the fixed patch is equipped with a lower clamping seat and an upper clamping seat. The lower clamping seat and the upper clamping seat are hinged, and a clamping hole is jointly opened between the lower clamping seat and the upper clamping seat for inserting the initial section of the external catheter; fixing clips are arranged on both of the elastic bands on the side. The fixing clips are in the shape of a "U" for fixing the end of the infusion connector. Receiving grooves are opened on both sides of the fixing clip, and a paste tape is bolted to the top end of the receiving groove of the fixing clip; medical glue is coated on the lower surfaces of the paste ring, the upper pulling band, the lower pulling band, the fixed patch and the elastic band, and release paper is pasted on one side of the paste ring, the upper pulling band, the lower pulling band, the fixed patch and the elastic band corresponding to the medical glue.

[0007] Preferably, the lengths of the elastic band extending to both sides of the paste ring are the same, and the upper surfaces of the ends of the elastic band extending to the outside of the paste ring are flush with both the upper pulling band and the lower pulling band.

[0008] Preferably, through holes are jointly opened on the paste ring and the part of the elastic band corresponding to the square holes, and a fixing rod is inserted through the through holes of the paste ring. The paste ring is fused with the fixing rod.

[0009] Preferably, the cross-sections of both the first tube winding cap and the second tube winding cap are in the shape of a "soil", and upper ring grooves and lower ring grooves are opened on the first tube winding cap and the second tube winding cap. The upper ring grooves and the lower ring grooves are matched with the catheter.

[0010] Preferably, an auxiliary rod is installed on the upper surface of the paste ring close to the fixing clip on the upper side. The cross-section of the auxiliary rod is in the shape of a "T", and the groove hole formed by the auxiliary rod and the paste ring is matched with the catheter.

[0011] Preferably, the main body of the fixed patch is in the shape of a butterfly, symmetrical ventilation holes are opened on the fixed patch, and capillary holes are evenly distributed on the fixed patch.

[0012] Preferably, the elastic band has evenly distributed grooves on both sides of the inner side of the corresponding loop. The grooves are semi-circular in shape to accommodate the deformation of the elastic band after it is stretched and contracted.

[0013] Preferably, a base is installed in the middle of the upper surface of the fixing sticker, a rotating groove is opened at the lower end of the base, and a locking pin is installed in the middle of the lower surface of the lower clamp, and the locking pin is rotatably connected to the rotating groove.

[0014] Preferably, a locking rod is installed at the lower end of the upper clamp away from the hinge side, and a locking groove is opened at the upper end of the lower clamp away from the hinge side. Both the locking rod and the locking groove are isosceles trapezoidal in shape, and the locking rod and the locking groove are fully fitted together.

[0015] Preferably, the fixing clip is made of latex material, and medical adhesive is respectively provided on the inner and outer surfaces of the adhesive strips on both sides, and release paper is attached to the outside of the medical adhesive.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. It can be fixed in different positions according to the puncture site, and through the deformable function of the adhesive ring and elastic band, it can form a tight fit with the skin to avoid tension damage to the skin. When the end of the infusion connector is at the joint, it can prevent the infusion connector end from shifting due to bending of the arm under the protection of the fixing clip, thus avoiding repeated traction on the catheter and preventing leakage.

[0018] 2. At the same time, the dispersed structure can improve the heat dissipation and breathability of the entire fixation device, thereby improving the patient's comfort during use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a bottom-view structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram showing the disassembled main structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the installation structure of the elastic band of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the first spiral cap of the present invention;

[0024] Figure 6 This is a schematic diagram of the unfolded structure of the adhesive tape on the fixing clip of the present invention;

[0025] Figure 7 This is a schematic diagram of the installation structure of the upper clamp and the lower clamp of the present invention;

[0026] Figure 8 This is a schematic diagram of the catheter routing in Embodiment 2 of the present invention.

[0027] In the diagram: 1. Adhesive ring; 2. Upper pull strap; 3. Lower pull strap; 4. Elastic band; 5. Pull groove; 6. Fixing rod; 7. First tube cap; 8. Second tube cap; 9. Fixing clamp; 10. Auxiliary rod; 11. Adhesive tape; 12. Fixing sticker; 13. Perforation; 14. Square hole; 15. Upper ring groove; 16. Lower ring groove; 17. Storage groove; 18. Guide tube; 19. Lower clamp seat; 20. Upper clamp seat; 21. Vent hole; 22. Capillary pore; 23. Clamping hole; 24. Base; 25. Rotary groove; 26. Locking pin; 27. Locking rod; 28. Locking groove. Detailed Implementation

[0028] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0029] Example 1

[0030] As attached Figure 1-7 The PICC catheter anti-slip fixing device shown includes a figure-eight shaped adhesive ring 1 and a catheter 18 disposed above the adhesive ring 1. A first tube cap 7 and a second tube cap 8, spaced apart, are installed on the middle of the upper surface of the adhesive ring 1. The adhesive ring 1 has evenly distributed square holes 14 longitudinally distributed on it. An elastic band 4 is inserted into the adhesive ring 1 through the square holes 14. The elastic band 4 extends to both ends of the adhesive ring 1 and is connected to an upper pull band 2 and a lower pull band 3, respectively. A fixing patch 12 is connected to the middle of the outer side of the lower pull band 3. A lower clamp 19 and an upper clamp 20 are installed on the middle of the upper surface of the fixing patch 12. The lower clamp 19 and the upper clamp 20 are connected... The hinged joint has a clamping hole 23 between the lower clamp 19 and the upper clamp 20 for inserting the initial section of the external catheter. Each of the two elastic bands 4 on the side is equipped with a fixing clip 9, which is U-shaped and used to fix the end of the infusion connector. Both sides of the fixing clip 9 are provided with a storage groove 17, and the fixing clip 9 is attached to the top of the storage groove 17 with an adhesive tape 11. The lower surfaces of the adhesive ring 1, the upper pull band 2, the lower pull band 3, the fixing tape 12 and the elastic band 4 are coated with medical adhesive. Release paper is attached to the side of the adhesive ring 1, the upper pull band 2, the lower pull band 3, the fixing tape 12 and the elastic band 4 corresponding to the medical adhesive.

[0031] When working, after the catheter 18 is punctured and inserted, it extends outward through the puncture point. At this time, the fixing patch 12 on the patch ring 1 is corresponding to one side of the external part of the catheter 18, and the catheter 18 is pulled through the clamping hole 23. Then, the initial fixation of the catheter 18 is completed by the way that the clamping rod 27 on the upper clamping seat 20 is clamped with the clamping groove 28 on the lower clamping seat 19. According to the length of the catheter, after the catheter 18 passes through the clamping hole 23, it is selected whether to be wound around the upper ring groove 15 or the lower ring groove 16 on the second tube winding cap 8. If the lower ring groove 16 is wound first, after rotating half a circle, the horizontal position of the catheter 18 is shifted upward, and the catheter 18 is rotated half a circle along the upper ring groove 15 again. If the length of the catheter 18 is longer, after leaving the second tube winding cap 8, the catheter 18 is wound around the first tube winding cap 17 in the same winding way. The catheter 18 is continuously pulled, and the catheter 18 approaches the outside of the auxiliary rod 10. Finally, the infusion joint end is fixed between the two fixing clips 9, and the fixing is completed by using the adhesive tape 11. Then, all the release papers on the lower sides of the patch ring 1, the upper pulling belt 2, the lower pulling belt 3, the fixing patch 12 and the elastic band 4 are torn off. First, press the ring body part corresponding to the patch ring 1, which will make the patch ring 1 close to the side of the fixing patch 12 firmly adhere to the inner side of the upper arm. Then, continuously move the fingers and press the patch ring 1 to make the whole patch ring 1 firmly adhere to the outside of the skin. Further, the upper pulling belt 2 and the lower pulling belt 3 on the upper and lower sides are fixed on both sides of the patch ring 1 to complete the overall fixation. During the whole fixation process, the position of the fixing patch 12 can be changed according to the position of the external part of the catheter 18 at the puncture point, and through the deformable functions of the patch ring 1 and the elastic band 4, a tight adhesion with the skin is formed to complete the fixation.

[0032] The lengths of the elastic band 4 extending to both sides of the patch ring 1 are the same. The upper surfaces of the ends of the elastic band 4 extending to the outside of the patch ring 1 are flush with both the upper pulling belt 2 and the lower pulling belt 3. The patch ring 1 and the elastic band 4 corresponding to the square hole 14 are jointly provided with a through hole 13. The patch ring 1 is penetrated by a fixing rod 6 through the through hole 13, and the patch ring 1 is welded to the fixing rod 6. The cross-sections of the first tube winding cap 7 and the second tube winding cap 8 are both in the shape of a Chinese character 'tu'. The first tube winding cap 7 and the second tube winding cap 8 are provided with an upper ring groove 15 and a lower ring groove 16, and the upper ring groove 15 and the lower ring groove 16 are matched with the catheter 18.

[0033] An auxiliary rod 10 is installed on the upper surface of the patch ring 1 close to the upper fixing clip 9. The cross-section of the auxiliary rod 10 is in the shape of a Chinese character 'T'. The slot hole formed by the auxiliary rod 10 and the patch ring 1 is matched with the catheter 18.

[0034] The main body of the fixation patch 12 is butterfly-shaped. The fixation patch 12 has symmetrically distributed ventilation holes 21 and uniformly distributed capillaries 22. The ventilation holes 21 allow the fixation patch 12 to breathe after it is attached to the skin. Since the fixation patch 12 cannot have a dense number of ventilation holes 21, the fixation patch 12 itself has relatively dense capillaries 22 to achieve full ventilation of the part of the fixation patch 12 in contact with the skin.

[0035] A base 24 is installed in the middle of the upper surface of the fixing patch 12. A rotating groove 25 is opened at the lower end of the base 24. A locking pin 26 is installed in the middle of the lower surface of the lower clamp 19. The locking pin 26 is rotatably connected to the rotating groove 25. The rotatable connection between the locking pin 26 and the rotating groove 25 allows the whole formed by the upper clamp 20 and the lower clamp 19 to rotate through the base 24, thereby adapting to the position of the catheter 18 when it is passed through the puncture point. This is beneficial for adapting to the displacement of the catheter 18 caused by the patient's arm movement during daily activities, and reducing the probability of leakage caused by the displacement of the catheter 18.

[0036] The elastic band 4 has evenly distributed grooves 5 on both sides inside the inner side of the ring 1. The grooves 5 are semi-circular in shape to accommodate the deformation of the elastic band 4 after it is stretched and contracted.

[0037] A locking rod 27 is installed at the lower end of the upper clamp 20 away from the hinge side, and a locking groove 28 is opened at the upper end of the lower clamp 19 away from the hinge side. Both the locking rod 27 and the locking groove 28 are in the shape of an isosceles trapezoid. The locking rod 27 and the locking groove 28 are fully engaged and can be tightly locked to prevent the guide tube 18 from falling off.

[0038] The fixing clip 9 is made of latex material. The inner and outer surfaces of the adhesive strips 11 on both sides are respectively provided with medical adhesive, and the medical adhesive is covered with release paper.

[0039] Example 2

[0040] Reference Figure 8After the catheter 18 is inserted, it extends outward from the puncture point. At this time, the fixing sticker 12 on the adhesive ring 1 corresponds to the side of the external part of the catheter 18, and the catheter 18 is pulled through the clamp hole 23. Then, the catheter 18 is initially fixed by the locking rod 27 on the upper clamp 20 and the locking groove 28 on the lower clamp 19. Depending on the length of the catheter, after the catheter 18 passes through the clamp hole 23, it is selected whether to wrap it around the upper ring groove 15 or the lower ring groove 16 on the second tube cap 8. If the lower ring groove 16 is wrapped first, after rotating half a turn, the horizontal position of the catheter 18 is shifted upward, and the catheter 18 is rotated half a turn along the upper ring groove 15. If the length of the catheter 18 is long, after leaving the second tube cap 8, the catheter 18 is wrapped around the first tube cap 17 in the same way. The catheter 18 is pulled and moves towards the outside of the auxiliary rod 10. Finally, the infusion connector end is fixed between the two fixing clips 9, and the adhesive tape 11 is used to complete the fixation.

[0041] Working principle of the invention:

[0042] Refer to the instruction manual appendix Figure 1-7As shown, when using the device, after the catheter 18 is inserted through the puncture point, it extends outward. At this time, the fixing sticker 12 on the adhesive ring 1 corresponds to the side of the external part of the catheter 18, and the catheter 18 is pulled through the clamping hole 23. Then, the catheter 18 is initially fixed by the locking rod 27 on the upper clamp 20 and the locking groove 28 on the lower clamp 19. Depending on the length of the catheter, after the catheter 18 passes through the clamping hole 23, it is selected whether to wrap it around the upper ring groove 15 or the lower ring groove 16 on the second winding cap 8. If the lower ring groove 16 is wrapped first, after rotating half a turn, the horizontal position of the catheter 18 is shifted upward, and the catheter 18 is rotated half a turn along the upper ring groove 15. If the length of the catheter 18 is long, after leaving the second winding cap 8, the catheter 18 is wrapped around the first winding cap 17 in the same way. The catheter 18 is pulled further, and the catheter 18 moves closer to the outside of the auxiliary rod 10. Finally, the infusion connector end is fixed between the two fixing clamps 9, and the adhesive is used. After securing the adhesive band 11, remove the release paper from the bottom of the adhesive ring 1, upper pull strap 2, lower pull strap 3, fixing adhesive 12, and elastic band 4. First, press the ring part corresponding to the adhesive ring 1 to firmly attach the adhesive ring 1 near the fixing adhesive 12 to the inside of the upper arm. Then, move your fingers continuously and press the adhesive ring 1 to firmly attach the entire adhesive ring 1 to the skin. Next, fix the upper pull strap 2 and lower pull strap 3 on both sides of the adhesive ring 1 to complete the overall fixation. During the entire fixation process, the position of the fixing adhesive 12 can be changed according to the external position of the catheter 18 at the puncture point. Through the deformable function of the adhesive ring 1 and elastic band 4, a tight adhesion between the adhesive ring 1 and the skin is formed to avoid tension damage to the skin. When the end of the infusion connector is at the joint, the infusion connector end can be prevented from shifting due to bending of the arm under the protection of the fixing clip 9, thus avoiding repeated pulling of the catheter 18 and preventing leakage.

[0043] In summary, this device effectively prevents displacement and leakage of the external portion of the PICC catheter during use, and avoids tension damage to the skin caused by fixing the external portion of the PICC catheter, thereby increasing the service life of the PICC catheter and benefiting patients.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A PICC catheter anti-slip fixing device, characterized in that: It includes a sticking ring (1) in an "8" shape and a conduit (18) arranged above the sticking ring (1). In the middle of the upper surface of the sticking ring (1), first and second pipe winding caps (7) and (8) are installed at intervals; longitudinally formed in the sticking ring (1) are evenly distributed square holes (14), and an elastic band (4) is inserted through the square holes (14) of the sticking ring (1). The elastic band (4) extends to both ends of the sticking ring (1) and is respectively connected to an upper pulling band (2) and a lower pulling band (3); in the middle of the outer side of the lower pulling band (3), a fixed patch (12) is connected. In the middle of the upper surface of the fixed patch (12), a lower clamp seat (19) and an upper clamp seat (20) are installed. The lower clamp seat (19) and the upper clamp seat (20) are hinged, and a clamping hole (23) is jointly formed between the lower clamp seat (19) and the upper clamp seat (20) for inserting the initial section of an external conduit; fixed clamps (9) are arranged on both of the two elastic bands (4) at the side. The fixed clamps (9) are in a "U" shape for fixing the end of an infusion connector. Receiving grooves (17) are formed on both sides of the fixed clamp (9), and a sticking tape (11) is bolted to the top end of the receiving groove (17) of the fixed clamp (9); the lower surfaces of the sticking ring (1), the upper pulling band (2), the lower pulling band (3), the fixed patch (12) and the elastic band (4) are all coated with medical glue, and release paper is pasted on one side of the sticking ring (1), the upper pulling band (2), the lower pulling band (3), the fixed patch (12) and the elastic band (4) corresponding to the medical glue.

2. The PICC catheter anti-slip fixing device according to claim 1, characterized in that, The lengths of the elastic band (4) extending to both sides of the sticking ring (1) are the same, and the upper surfaces of the ends of the elastic band (4) extending to the outside of the sticking ring (1) are flush with both the upper pulling band (2) and the lower pulling band (3).

3. The PICC catheter anti-slip fixing device according to claim 1, characterized in that, Perforations (13) are jointly formed in the parts of the sticking ring (1) and the elastic band (4) corresponding to the square holes (14). A fixing rod (6) is inserted through the perforations (13) of the sticking ring (1), and the sticking ring (1) is fused with the fixing rod (6).

4. The PICC catheter anti-slip fixing device according to claim 1, characterized in that, The cross-sections of both the first pipe winding cap (7) and the second pipe winding cap (8) are in a "soil" shape. Upper and lower ring grooves (15) and (16) are formed on the first pipe winding cap (7) and the second pipe winding cap (8), and the upper and lower ring grooves (15) and (16) are matched with the conduit (18).

5. A PICC catheter anti-slip fixing device according to claim 1, characterized in that, An auxiliary rod (10) is installed on the upper surface of the sticking ring (1) close to the upper fixed clamp (9). The cross-section of the auxiliary rod (10) is in a "T" shape, and the slot formed by the auxiliary rod (10) and the sticking ring (1) is matched with the conduit (18).

6. The PICC catheter anti-slip fixing device according to claim 1, characterized in that, The main body of the fixed patch (12) is in a butterfly shape. Symmetrically distributed ventilation holes (21) are formed in the fixed patch (12), and capillary holes (22) are evenly distributed on the fixed patch (12).

7. The PICC catheter anti-slip fixing device according to claim 1, characterized in that, On both sides of the elastic band (4) corresponding to the inside of the sticking ring (1), evenly distributed pulling grooves (5) are formed. The pulling grooves (5) are in a semi-circular shape to adapt to the deformation of the elastic band (4) after being stretched and contracted.

8. A PICC catheter anti-slip fixing device according to claim 1, characterized in that, A base (24) is installed in the middle of the upper surface of the fixing sticker (12). A rotating groove (25) is opened at the lower end of the base (24). A locking pin (26) is installed in the middle of the lower surface of the lower clamp (19). The locking pin (26) is rotatably connected to the rotating groove (25).

9. A PICC catheter anti-slip fixing device according to claim 1, characterized in that, The upper clamp (20) has a locking rod (27) installed at its lower end away from the hinge side, and the lower clamp (19) has a locking groove (28) at its upper end away from the hinge side. Both the locking rod (27) and the locking groove (28) are isosceles trapezoidal in shape, and the locking rod (27) and the locking groove (28) are fully fitted together.

10. A PICC catheter anti-slip fixing device according to claim 1, characterized in that, The fixing clip (9) is made of latex material. The inner and outer surfaces of the adhesive strips (11) on both sides are respectively provided with medical adhesive, and release paper is attached to the outside of the medical adhesive.

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