PICC (Peripherally Inserted Central Catheter) fixing device

Abstract

The utility model provides a PICC catheter fixing device, which comprises a main body structure and a fixing structure, the main body structure comprises a first silica gel sheath main body, one side of the first silica gel sheath main body is provided with a first splicing groove, the surface of the first silica gel sheath main body is provided with a plurality of first convex columns, and the PICC catheter main body can be placed around the first convex columns; the fixing structure comprises a second silica gel sheath body, one side of the second silica gel sheath body is provided with a first splicing block capable of being connected with the first splicing groove in a spliced mode, and the surface of the second silica gel sheath body is provided with a first fixing buckle used for fixing a PICC catheter fixing pipe. Under the condition that adhesive tape is not used, the first protruding columns are arranged on the surface of the first silica gel protection sleeve body, the PICC main body can be conveniently placed when the exposed part is too long or too long, the PICC fixing tube is fixed through the first fixing buckles arranged on the surface of the second silica gel protection sleeve body after the PICC main body is placed, and the fixing reliability of the PICC is improved; and the pipeline can be prevented from being bent, and the pipeline is prevented from being damaged due to bending.

Description

Technical Field

[0001] The utility model relates to the technical field of medical appliances, in particular to a PICC catheter fixing device. Background Art

[0002] PICC catheters are widely used in clinical intravenous infusion and drug treatment, and need to be fixed on the patient's body surface stably for a long time.

[0003] The placement shape of the exposed part of the PICC catheter should be designed according to the position of the puncture point, the length of the exposed catheter, and the smoothness and firmness of the patient's muscles. The vertical straight-line placement is prohibited to prevent catheter displacement caused by various reasons that lead to loose catheter fixation. Generally, it is placed in an "L", "S", "U" or double "U" shape. After the catheter is placed, it needs to be fixed. The current fixing method generally uses adhesive tape.

[0004] The applicant of the present invention has found that the prior art has at least the following technical problems:

[0005] The traditional PICC catheter is fixed with adhesive tape. The adhesive tape is easy to fall off, resulting in unstable fixation and frequent replacement. Some patients are allergic to the adhesive tape. Long-term use of the adhesive tape for fixation is likely to cause redness, swelling, itching, rash and other symptoms on the local skin, affecting the patient's comfort and the safety of catheter use. Content of the Utility Model

[0006] The purpose of the present invention is to provide a PICC catheter fixing device to solve the technical problems in the prior art that the traditional PICC catheter is fixed with adhesive tape, the adhesive tape is easy to fall off, resulting in unstable fixation and frequent replacement, some patients are allergic to the adhesive tape, and long-term use of the adhesive tape for fixation is likely to cause redness, swelling, itching, rash and other symptoms on the local skin, affecting the patient's comfort and the safety of catheter use. The preferred technical solutions provided by the present invention can produce many technical effects as described below.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A PICC catheter fixing device provided by the present invention includes a main structure and a fixing structure, wherein:

[0009] The main structure includes a first silicone sheath main body, a first splicing groove is provided on one side of the first silicone sheath main body, and a plurality of first convex columns are provided on the surface of the first silicone sheath main body. The PICC catheter main body can be placed around the first convex columns;

[0010] The fixing structure includes a second silicone sheath body. One side of the second silicone sheath body is provided with a first splicing block that can be spliced and connected to the first splicing groove. The surface of the second silicone sheath body is provided with a first fixing buckle for fixing the fixing tube of the PICC catheter. The inner wall of the second silicone sheath body is provided with an anti-slip fixing structure.

[0011] Preferably, it further includes an extension structure. The extension structure includes a third silicone sheath body, where:

[0012] Second splicing blocks and second splicing grooves are respectively provided on both sides of the third silicone sheath body. The second splicing block can be spliced and connected to the first splicing groove or the second splicing groove, and the second splicing groove can be spliced and connected to the first splicing block;

[0013] A plurality of second convex columns are provided on the surface of the third silicone sheath body, and the PICC catheter body can be placed around the second convex columns.

[0014] Preferably, the first splicing groove is a through groove opened along the edge of the first silicone sheath body and extending towards the inside of the first silicone sheath body;

[0015] The first splicing block is a convex block formed by extending along the edge of the second silicone sheath body towards the outside of the second silicone sheath body.

[0016] Preferably, the second splicing groove is a through groove opened along the edge of the third silicone sheath body and extending towards the inside of the third silicone sheath body;

[0017] The second splicing block is a convex block formed by extending along the edge of the third silicone sheath body towards the outside of the third silicone sheath body.

[0018] Preferably, both the first splicing block and the second splicing block include a fixing module, a connecting module, and a clamping module arranged in sequence, where:

[0019] The cross-section of the fixing module adopts a rectangular structure, and the fixing module is connected to the edge of the second silicone sheath body or the edge of the third silicone sheath body;

[0020] The cross-section of the clamping module adopts a circular structure, and the diameter of the circular structure is not greater than the length of the rectangular structure;

[0021] The fixing module and the clamping module are connected by the connecting module, and the cross-sectional width of the connecting module is less than the radius of the circular structure.

[0022] Preferably, both the first splicing groove and the second splicing groove include a fixing module accommodating groove, a connecting module accommodating groove, and a clamping module accommodating groove arranged in sequence.

[0023] Preferably, the anti-slip fixing structure includes an inflation structure arranged on the inner wall of the second silicone sheath main body and an airbag connected to the inflation structure through a pipeline, where:

[0024] The inflation structure includes a plurality of strip-shaped inflation units arranged horizontally and vertically along the inner wall of the second silicone sheath main body, and the plurality of inflation units are communicated;

[0025] The length dimension of the inflation structure is not less than 1 / 5 of the circumference of the second silicone sheath main body.

[0026] Preferably, the anti-slip fixing structure further includes a plurality of anti-slip protrusions, and the anti-slip protrusions include silicone particles integrally formed with the second silicone sheath main body and having an arc-shaped surface; the plurality of anti-slip protrusions are irregularly arranged on the periphery of the inflation unit.

[0027] Preferably, there are three first convex columns and three second convex columns, and the three first convex columns are arranged at 120°, and the three second convex columns are arranged at 120°.

[0028] Preferably, at least one set of second fixing buckles for fixing the PICC catheter main body is arranged on the periphery of each first convex column and each second convex column.

[0029] The PICC catheter fixing device provided by the present invention, by setting that both the main body structure and the fixing structure adopt silicone sheaths, can be sleeved on the patient's arm for use, is soft and comfortable, can reduce the pressure and irritation on the skin, and an anti-slip fixing structure is arranged on the inner wall of the second silicone sheath main body to ensure the reliability of the PICC catheter fixing device during use. Without using adhesive tape, the PICC catheter is firmly fixed, improving the comfort of the patient during use. The first splicing groove is arranged on one side of the first silicone sheath main body of the main body structure, and the first splicing block capable of being spliced and connected with the first splicing groove is arranged on one side of the second silicone sheath main body of the fixing structure, so that the main body structure and the fixing structure adopt a modular connection form, which is convenient for assembly and disassembly and can save nursing time. By arranging a plurality of first convex columns on the surface of the first silicone sheath main body, it is convenient to place the PICC catheter main body when it is too long or too short exposed, and after placement, the PICC catheter fixing tube is fixed by the first fixing buckle arranged on the surface of the second silicone sheath main body, improving the reliability of PICC catheter fixation and preventing the pipeline from bending and avoiding pipeline damage due to bending. Description of the Drawings

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 is a schematic structural diagram of the first embodiment of the PICC catheter fixing device of the present invention;

[0032] Figure 2 is a schematic structural diagram of the main body structure in the PICC catheter fixing device of the present invention;

[0033] Figure 3 is Figure 2 the front view structural schematic diagram of;

[0034] Figure 4 is a schematic structural diagram of the fixing structure in the PICC catheter fixing device of the present invention;

[0035] Figure 5 is Figure 4 the front view structural schematic diagram of;

[0036] Figure 6 is a schematic structural diagram of the PICC catheter in the PICC catheter fixing device of the present invention;

[0037] Figure 7 is the structural schematic diagram of the PICC catheter body placed around the first convex column Figure 1 ;

[0038] Figure 8 is the structural schematic diagram of the PICC catheter body placed around the first convex column Figure 2 ;

[0039] Figure 9 is the structural schematic diagram of the PICC catheter body placed around the first convex column Figure 3 ;

[0040] Figure 10 is a schematic structural diagram of the second fixing buckle in the PICC catheter fixing device of the present invention;

[0041] Figure 11 is a schematic structural diagram of the anti-slip fixing structure in the PICC catheter fixing device of the present invention;

[0042] Figure 12 is a schematic structural diagram of the second embodiment of the PICC catheter fixing device of the present invention;

[0043] Figure 13It is a schematic structural diagram of the extension structure in the PICC catheter fixing device of the present utility model;

[0044] Figure 14 It is Figure 13 the front view structural schematic diagram of.

[0045] In the figure: 10, main body structure; 11, first silicone sheath main body; 110, shallow groove; 12, first splicing groove; 121, fixing module accommodating groove; 122, connecting module accommodating groove; 123, engaging module accommodating groove; 13, first convex column; 14, second fixing buckle; 141, bottom surface; 142, groove; 143, buckle;

[0046] 20, fixing structure; 21, second silicone sheath main body; 22, first splicing block; 221, fixing module; 222, connecting module; 223, engaging module; 23, first fixing buckle; 24, anti-slip fixing structure; 241, inflation structure; 2411, inflation unit; 242, pipeline; 243, airbag; 244, anti-slip protrusion;

[0047] 30, extension structure; 31, third silicone sheath main body; 32, second splicing block; 33, second splicing groove; 34, second convex column;

[0048] 401, PICC catheter main body; 402, PICC catheter fixing tube. Specific embodiments

[0049] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the scope protected by the present utility model.

[0050] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "lateral", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0051] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0052] Embodiment 1

[0053] Figure 1 is a schematic structural view of this embodiment. As Figure 1 shown, this embodiment provides a PICC catheter fixing device, which includes a main body structure 10 and a fixing structure 20.

[0054] Figure 2 is a schematic structural view of the main body structure in this embodiment. Figure 3 is Figure 2 the front view structural schematic diagram of Figure 2 and Figure 3 shown, the main body structure 10 includes a first silicone sheath main body 11, the first silicone sheath main body 11 can be sleeved on the patient's arm for use, and a first splicing groove 12 is arranged on one side of the first silicone sheath main body 11 for splicing and combining with the fixing structure 20, and a plurality of first convex columns 13 are arranged on the surface of the first silicone sheath main body 11.

[0055] In this embodiment, the first convex column 13 adopts an hourglass-shaped structure that is thicker at the upper and lower parts and thinner in the middle. The PICC catheter main body 401 can be limited within the thinner part in the middle of the hourglass-shaped structure, which is convenient for the PICC catheter main body 401 to be placed around the first convex column 13.

[0056] Specifically, in this embodiment, the diameter size of the lower layer of the hourglass-shaped structure is set to be larger than that of the upper layer. By increasing the diameter size of the lower layer, the connection stability between the first convex column 13 and the first silicone sheath main body 11 is better.

[0057] Figure 4 is a schematic structural view of the fixing structure in this embodiment. Figure 5 is Figure 4 the front view structural schematic diagram of Figure 4 and Figure 5As shown, the fixing structure 20 includes a second silicone sheath body 21 which can be sleeved on the patient's arm for use. One side of the second silicone sheath body 21 is provided with a first splicing block 22 that can be spliced and connected with the first splicing groove 12. By setting one side of the first silicone sheath body 11 of the main body structure 10 as the first splicing groove 12 and one side of the second silicone sheath body 21 of the fixing structure 20 as the first splicing block 22 that can be spliced and connected with the first splicing groove 12, the main body structure 10 and the fixing structure 20 adopt a modular connection form, which is convenient for both assembly and disassembly, can save nursing time, and is convenient for storage and cleaning and disinfection treatment.

[0058] Figure 6 is a schematic structural diagram of the PICC catheter in this embodiment. As Figure 6 shown, the PICC catheter includes a PICC catheter main body 401 and a PICC catheter fixing tube 402. The PICC catheter main body 401 can be placed around the first convex column 13. A first fixing buckle 23 for fixing the PICC catheter fixing tube 402 is provided on the surface of the second silicone sheath body 21. The PICC catheter fixing tube 402 is placed on the surface of the second silicone sheath body 21 and fixed by the first fixing buckle 23.

[0059] In actual production and use, the first convex column 13 can be arranged according to the exposure amount of the PICC catheter main body 401. In this embodiment, it is set that the first convex column 13 includes three, and the three first convex columns 13 are arranged at 120°.

[0060] Figures 7 - 9 is a schematic structural diagram of the PICC catheter main body placed around the first convex column. As Figures 7 - 9 shown, when the PICC catheter main body 401 is less exposed, as Figure 7 shown, after the PICC catheter main body 401 bypasses one first convex column 13, the PICC catheter fixing tube 402 is placed on the surface of the second silicone sheath body 21 and fixed by the first fixing buckle 23. When the PICC catheter main body 401 is more exposed, according to the exposed length of the PICC catheter main body 401, the tube winding methods shown in Figure 8 or Figure 9 can be adopted. Finally, the PICC catheter fixing tube 402 is placed on the surface of the second silicone sheath body 21 and fixed by the first fixing buckle 23.

[0061] In this embodiment, by setting three first convex columns 13 on the surface of the first silicone sheath body 11, it is convenient to place the PICC catheter main body 401 when it is too long or too short. With the three first convex columns 13 arranged at 120°, the exposed part of the PICC catheter main body 401 automatically forms an "S" shape, avoiding problems such as pipeline displacement.

[0062] Optionally, at least one set of second fixing buckles 14 for fixing the PICC catheter body 401 is arranged on the circumferential side of each first convex post 13. The second fixing buckle 14 can adopt the fixing buckle structure as Figure 10 shown. The bottom surface 141 of the fixing buckle structure is fixedly connected to the surface of the first silicone sheath main body 11. When in use, when the PICC catheter body 401 is placed around the first convex post 13, the PICC catheter body 401 can be placed in the groove 142 of the second fixing buckle 14. By pressing the buckle 143 of the second fixing buckle 14, the fixation of the PICC catheter body 401 on the surface of the first silicone sheath main body 11 can be realized.

[0063] Of course, in actual production and use, a strap or other fixing structure capable of fixing the PICC catheter body 401 on the surface of the first silicone sheath main body 11 can also be adopted.

[0064] The first fixing buckle 23 in this embodiment can adopt the same structure as the second fixing buckle 14.

[0065] Optionally, shallow grooves 110 can be arranged at the surface edge of the first silicone sheath main body 11 and the surface edge of the second silicone sheath main body 21, so that the PICC catheter body 401 can be arranged along the track set by the shallow grooves 110, avoiding problems such as pulling of the PICC catheter body 401 at the surface edges of the first silicone sheath main body 11 and the second silicone sheath main body 21.

[0066] Preferably, the shallow grooves 110 at the splicing part of the first silicone sheath main body 11 and the second silicone sheath main body 21 can overlap each other, enabling the PICC catheter body 401 to have a good transition between the main body structure 10 and the fixing structure 20.

[0067] Figure 11 is a schematic structural diagram of the anti-slip fixing structure in this embodiment. As Figure 11 shown, in this embodiment, an anti-slip fixing structure 24 is arranged on the inner wall of the second silicone sheath main body 21, which is used to improve the anti-slip fixing effect when the PICC catheter fixing device is connected to the limbs of the patient.

[0068] Optionally, the anti-slip fixing structure 24 includes an inflation structure 241 arranged on the inner wall of the second silicone sheath main body 21 and an airbag 243 connected to the inflation structure 241 through a pipeline 242. When it is necessary to fix the PICC catheter fixing device to the patient's arm or other parts, the airbag 243 can be pressed to inflate the inside of the inflation structure 241 through the pipeline 242. After inflation, the inflation structure 241 expands, slightly pressing on the skin surface of the patient, improving the abutting effect between the second silicone sheath main body 21 and the skin surface of the patient, and avoiding the sliding or rotation of the second silicone sheath main body 21 during use.

[0069] Among them, the inflatable structure 241 includes a plurality of strip-shaped inflatable units 2411 arranged horizontally and vertically along the inner wall of the first silicone sheath body 11. The plurality of inflatable units 2411 are connected and arranged in communication. The pipeline 242 connected to the airbag 243 only needs to be connected to one of the inflatable units 2411 to meet the usage requirements.

[0070] In this embodiment, a control valve is provided on the pipeline 242, and the inflatable structure 241 can be inflated by pressing the airbag 243 and deflated after the use of the PICC catheter fixing device through the control of the control valve.

[0071] Specifically, in this embodiment, the length dimension of the inflatable structure 241 is not less than 1 / 5 of the perimeter of the first silicone sheath body 11 to ensure that the inflatable structure 241 can fully contact the skin surface of the patient. To further ensure the contact between the inflatable structure 241 and the skin surface of the patient, the width dimension of the inflatable structure 241 can also be set to be not less than 80% of the width of the first silicone sheath body 11.

[0072] As an alternative embodiment, the anti-slip fixing structure 24 further includes a plurality of anti-slip protrusions 244. The anti-slip protrusions 244 include silicone particles with an arc-shaped surface integrally formed with the first silicone sheath body 11. The plurality of anti-slip protrusions are irregularly arranged on the periphery of the inflatable unit 2411. Through the cooperation of the inflatable unit 2411 and the anti-slip protrusions 244, the anti-slip fixing effect of the anti-slip fixing structure 24 is further improved, and it is safer and more reliable during use.

[0073] As an alternative embodiment, the first splicing groove 12 is a through groove opened along the edge of the first silicone sheath body 11 and extending into the first silicone sheath body 11; the first splicing block 22 is a convex block formed by extending along the edge of the second silicone sheath body 21 and extending outward from the second silicone sheath body 21. To improve the safety and stability of the overall structure, the convex block in this embodiment is integrally formed with the second silicone sheath body 21.

[0074] As an alternative embodiment, as Figure 5 shown, the first splicing block 22 includes a fixing module 221, a connecting module 222, and a clamping module 223 arranged in sequence.

[0075] Among them, the cross-section of the fixing module 221 adopts a rectangular structure, and the fixing module 221 is connected to the edge of the second silicone sheath main body 21; the cross-section of the engaging module 223 adopts a circular structure, and the diameter of the circular structure is not greater than the length of the rectangular structure; the fixing module 221 and the engaging module 223 are connected by a connecting module 222, and the cross-sectional width of the connecting module 222 is less than the radius of the circular structure. The first splicing groove 12 is provided with a fixing module accommodating groove 121, a connecting module accommodating groove 122, and an engaging module accommodating groove 123 that are sequentially arranged for accommodating the fixing module 221, the connecting module 222, and the engaging module 223, respectively.

[0076] By providing that the first splicing block 22 includes the fixing module 221, the connecting module 222, and the engaging module 223 that are sequentially arranged, and the cross-sectional shapes of the fixing module 221 and the engaging module 223 are different, and the cross-sectional width dimension of the connecting module 222 is smaller than that of the fixing module 221 and the engaging module 223, the first splicing block 22 forms a structure that is wider at both ends and narrower in the middle. When the first splicing block 22 is spliced and connected with the first splicing groove 12, they are tightly engaged with each other, avoiding the first splicing block 22 from disengaging from the first splicing groove 12 during splicing use.

[0077] Preferably, the shapes and sizes of the openings of the fixing module accommodating groove 121, the connecting module accommodating groove 122, and the engaging module accommodating groove 123 are the same as the shapes and sizes of the fixing module 221, the connecting module 222, and the engaging module 223.

[0078] To improve the splicing stability between the main body structure 10 and the fixing structure 20, two sets of the first splicing grooves 12 and the first splicing blocks 22 are provided in this embodiment. Of course, in actual production and use, one set, three sets, four sets, or more sets of the first splicing grooves 12 and the first splicing blocks 22 can also be provided.

[0079] Embodiment Two

[0080] Figure 12 is the structural schematic diagram of this embodiment. As Figure 12 shown, on the basis of Embodiment One, this embodiment further includes an extension structure 30. Figure 13 is the structural schematic diagram of the extension structure. Figure 14 is Figure 13 the front view structural schematic diagram of Figure 13 and Figure 14As shown in the figure, the extension structure 30 includes a third silicone sheath body 31. A second splicing block 32 and a second splicing groove 33 are respectively arranged on both sides of the third silicone sheath body 31. The second splicing block 32 can be spliced and connected with the first splicing groove 12 or the second splicing groove 33, and the second splicing groove 33 can be spliced and connected with the first splicing block 22. During use, one or more extension structures 30 can be spliced between the main body structure 10 and the fixing structure 20, making the PICC catheter fixing device more suitable for use when the PICC catheter main body 401 is exposed too long.

[0081] Specifically, a plurality of second convex columns 34 are arranged on the surface of the third silicone sheath body 31, and the PICC catheter main body 401 can be placed around the second convex columns 34. For the specific structural form of the PICC catheter main body placed around the second convex columns 34, reference can be made to Figures 7 - 9 which will not be elaborated here.

[0082] In this embodiment, it is set that there are three second convex columns 34, and the three second convex columns 34 are arranged at 120°. The specific structure of the second convex columns 34 is the same as that of the first convex columns 13, which will not be elaborated here.

[0083] Optionally, at least one set of second fixing buckles 14 for fixing the PICC catheter main body 401 is arranged on the circumferential side of each second convex column 34. The second fixing buckles 14 can adopt the fixing buckle structure as shown in Figure 10 the figure. During use, when the PICC catheter main body 401 is placed around the second convex columns 34, the PICC catheter main body 401 can be placed in the groove 142 of the second fixing buckle 14, and by pressing the buckle 143 of the second fixing buckle 14, the fixing of the PICC catheter main body 401 on the surface of the third silicone sheath body 31 of the extension structure 30 can be achieved.

[0084] Of course, during actual production and use, a binding band or other fixing structure that can fix the PICC catheter main body 401 on the surface of the third silicone sheath body 31 can also be adopted.

[0085] As an alternative implementation manner, the second splicing groove 33 is a through groove opened along the edge of the third silicone sheath body 31 and extending towards the inside of the third silicone sheath body 31; the second splicing block 32 is a convex block formed by extending along the edge of the third silicone sheath body 31 towards the outside of the third silicone sheath body 31. To improve the use safety and stability of the overall structure, the convex block and the third silicone sheath body 31 in this embodiment are integrally formed.

[0086] As an alternative implementation manner, as shown in Figure 14 the figure, the second splicing block 32 includes a fixing module 221, a connecting module 222, and a clamping module 223 arranged in sequence.

[0087] Among them, the cross-section of the fixing module 221 adopts a rectangular structure, and the fixing module 221 is connected to the edge of the third silicone sheath body 31; the cross-section of the engaging module 223 adopts a circular structure, and the diameter of the circular structure is not greater than the length of the rectangular structure; the fixing module 221 and the engaging module 223 are connected by a connecting module 222, and the cross-sectional width of the connecting module 222 is less than the radius of the circular structure. The second splicing groove 33 is provided with a fixing module accommodating groove 121, a connecting module accommodating groove 122, and an engaging module accommodating groove 123 for accommodating the fixing module 221, the connecting module 222, and the engaging module 223 in sequence.

[0088] By setting the second splicing block 32 to include the fixing module 221, the connecting module 222, and the engaging module 223 arranged in sequence, and the cross-sectional shapes of the fixing module 221 and the engaging module 223 are different, and the cross-sectional width dimension of the connecting module 222 is smaller than that of the fixing module 221 and the engaging module 223, the first splicing block 22 is formed into a structure with wider ends and a narrower middle. When the second splicing block 32 is spliced and connected with the first splicing groove 12 or the second splicing groove 33, they are tightly engaged with each other, avoiding the second splicing block 32 from slipping out of the first splicing groove 12 or the second splicing groove 33 during splicing use. Similarly, the first splicing block 22 can be prevented from slipping out of the second splicing groove 33.

[0089] Preferably, the shapes and sizes of the openings of the fixing module accommodating groove 121, the connecting module accommodating groove 122, and the engaging module accommodating groove 123 are the same as the shapes and sizes of the fixing module 221, the connecting module 222, and the engaging module 223.

[0090] The PICC catheter fixing device of this embodiment can be spliced between the main body structure 10 and the fixing structure 20 by setting the extension structure 30. Adopting a modular splicing and combination method, it can be quickly and reliably spliced and connected during use, and is easy to disassemble, making the overall structure more versatile and flexible, and capable of adapting to different patients and clinical needs.

[0091] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A PICC catheter fixing device, characterized in that: It includes the main structure and the fixed structure, among which: The main structure comprises a first silicone sheath body, a first splicing groove is arranged on one side of the first silicone sheath body, a plurality of first convex columns are arranged on the surface of the first silicone sheath body, and the PICC catheter body can be placed around the first convex columns; The fixing structure includes a second silicone sheath body, a first splicing block that can be spliced ​​and connected to the first splicing groove is arranged on one side of the second silicone sheath body, a first fixing buckle for fixing the PICC catheter fixing tube is arranged on the surface of the second silicone sheath body, and an anti-slip fixing structure is arranged on the inner wall of the second silicone sheath body.

2. A PICC catheter fixing device according to claim 1, characterized in that: Also included is an extension structure, the extension structure including a third silicone sheath body, wherein: A second splicing block and a second splicing groove are respectively provided on both sides of the third silicone sheath body, the second splicing block can be spliced ​​and connected with the first splicing groove or the second splicing groove, and the second splicing groove can be spliced ​​and connected with the first splicing block; A plurality of second protrusions are arranged on the surface of the third silicone sheath body, and the PICC catheter body can be placed around the second protrusions.

3. A PICC catheter fixing device according to claim 2, characterized in that: The first splicing groove is a through groove extending along the edge of the first silicone sheath body toward the inside of the first silicone sheath body; The first splicing block is a protrusion formed by extending along the edge of the second silicone sheath body toward the outside of the second silicone sheath body.

4. A PICC catheter fixing device according to claim 3, characterized in that: The second splicing groove is a through groove extending along the edge of the third silicone sheath body toward the inside of the third silicone sheath body; The second splicing block is a convex block formed by extending along the edge of the third silicone sheath body toward the outside of the third silicone sheath body.

5. A PICC catheter fixing device according to claim 4, characterized in that: The first splicing block and the second splicing block both include a fixing module, a connecting module and a locking module which are arranged in sequence, wherein: The cross section of the fixing module adopts a rectangular structure, and the fixing module is connected to the edge of the second silicone sheath body or the edge of the third silicone sheath body; The cross section of the engaging module adopts a circular structure, and the diameter of the circular structure is not greater than the length of the rectangular structure; The fixing module and the engaging module are connected via a connecting module, and a cross-sectional width of the connecting module is smaller than a radius of the circular structure.

6. A PICC catheter fixing device according to claim 5, characterized in that: The first splicing slot and the second splicing slot both include a fixing module accommodating slot, a connecting module accommodating slot and a locking module accommodating slot which are arranged in sequence.

7. A PICC catheter fixing device according to any one of claims 1 to 6, characterized in that: The anti-slip fixing structure includes an inflatable structure arranged on the inner wall of the second silicone sheath body and an air bag connected to the inflatable structure through a pipeline, wherein: The inflatable structure comprises a plurality of strip-shaped inflatable units arranged transversely and longitudinally along the inner wall of the second silicone sheath body, and the plurality of inflatable units are connected and arranged; The length of the inflatable structure is not less than 1 / 5 of the circumference of the second silicone sheath body.

8. A PICC catheter fixing device according to claim 7, characterized in that: The anti-skid fixing structure further includes a plurality of anti-skid protrusions, and the anti-skid protrusions include silicone particles with arc-shaped surfaces integrally formed with the second silicone sheath body; the plurality of anti-skid protrusions are irregularly arranged around the inflatable unit.

9. A PICC catheter fixing device according to any one of claims 2 to 6, characterized in that: The three first convex pillars and the three second convex pillars are each three, the three first convex pillars are arranged at 120°, and the three second convex pillars are arranged at 120°.

10. A PICC catheter fixing device according to claim 9, characterized in that: At least one set of second fixing buckles for fixing the PICC catheter body is arranged on the circumferential side of each of the first convex columns and each of the second convex columns.

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