Epidural catheter fixing device for analgesia of intraspinal delivery
By combining the design of compression elements, dressings, and protective patches, the problem of fixing the epidural catheter during labor due to activity and sweat is solved, achieving catheter stability and sealing, and ensuring the safety and effectiveness of labor analgesia.
Patent Information
- Application Number
- CN202422434598.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-10-09
AI Technical Summary
Epidural catheters are prone to compression, breakage, or dislodgement during childbirth due to patient activity and sweating, and existing fixation methods are insufficient to provide effective protection.
The device employs a fixing mechanism that includes compression components, dressings, and protective patches. It achieves sealing and fixation of the epidural catheter through structures such as channels, limiting grooves, and flip-over plates. Combined with flexible materials and docking structures, it prevents leakage and catheter movement.
It achieves sterile sealing of the epidural catheter, avoids bleeding and leakage, ensures a secure catheter connection, prevents catheter compression, kinking, and dislodgement, and provides a safe environment for labor analgesia.
Smart Images
Figure CN223490231U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the medical field, specifically to an epidural catheter fixation device for epidural analgesia during childbirth. Background Technology
[0002] Epidural analgesia is one of the methods of pain relief during obstetric labor. It involves puncturing the intervertebral space in the patient's lower back and inserting an epidural catheter into the epidural space through a puncture needle. The catheter is left in place for a relatively long time to continuously administer analgesic drugs, thereby achieving the goal of pain relief throughout the labor process.
[0003] However, securing the epidural catheter remains a challenging clinical problem. Epidural catheters are typically flexible tubes, and the traditional method of securing them involves directly attaching them to the patient's back skin with adhesive tape. However, during actual childbirth, when the patient bends over, turns over, or undergoes other positional changes, coupled with the effects of sweat, the epidural catheter is easily stretched, leading to problems such as compression, kinking, or dislodgement, thus increasing the risk of not being able to provide pain relief.
[0004] Therefore, a catheter fixation device is needed to solve the above-mentioned technical problems and provide safety for the mother's childbirth. Utility Model Content
[0005] The purpose of this invention is to provide an epidural catheter fixation device for epidural analgesia during labor. While meeting the catheter placement requirements, it can achieve sterile sealing of the placement site to prevent bleeding and leakage, and effectively restrict and protect the epidural catheter to avoid problems such as catheter compression, kinking, or dislodgement.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An epidural catheter fixation device for epidural analgesia during labor includes a compression member, a dressing, and a protective dressing. The compression member is located on one side of the dressing and has a channel through which an existing epidural catheter can pass. One end of the channel forms an outlet on the surface of the compression member away from the dressing, and the other end of the channel forms an insertion port on the surface of the dressing. The insertion port and / or the dressing surface have a docking structure for connecting the epidural catheter. The protective dressing can simultaneously cover and adhere to the dressing and the surrounding skin surface.
[0008] Compared with existing technologies, the epidural catheter fixation device for spinal analgesia during childbirth, which adopts the above-mentioned technical solution, has the following beneficial effects:
[0009] I. The epidural catheter fixation device for epidural analgesia during labor using this utility model, after the epidural catheter is passed through the channel, achieves a double sealing function by using the connection between the dressing and the compression member, as well as the adhesion of the dressing to the skin at the puncture site, to avoid leakage or bleeding problems.
[0010] Second, the compression device restricts the tube within the channel, and the docking structure restricts the tube's movement. This not only meets the placement requirements but also prevents the epidural catheter from moving freely and becoming dislodged. Furthermore, the protective tape secures the dressing and the epidural catheter, strengthening the connection between the catheter and the body and alleviating pressure on the epidural tube to some extent.
[0011] Preferably, the compression member protrudes outward from the side opposite to the dressing, and is made of flexible medical material. A liquid-proof ring is provided around the outer side of the compression member. Using medical material allows for sterile sealing of the insertion site and effectively absorbs some exudate or blood. The flexible compression member can deform appropriately to fully fill the insertion site, increasing the sealing effect. Simultaneously, the liquid-proof ring contains and prevents leakage of exudate or blood.
[0012] Preferably, the channel is curved or inclined within the compression member. Utilizing a channel with a certain curvature or inclination guides the insertion of the epidural catheter, ensuring it is in the same curved or inclined state, further avoiding the risk of compression or breakage of the catheter.
[0013] Preferably, the docking structure includes a limiting groove and a flip-over piece. The limiting groove is located on the surface of the epidural catheter away from the pressure element, and the epidural catheter can be locked in the limiting groove. The flip-over piece is movably located at the opening of the limiting groove and can cover and adhere to the surface of the limiting groove. By controlling the movement of the flip-over piece to cooperate with the limiting groove, the epidural catheter's outer wall is wrapped around it. When the epidural catheter is embedded in the limiting groove, the stability of its connection is increased, and the catheter body is effectively protected.
[0014] Preferably, the docking structure further includes a limiting piece and a reinforcing piece. The limiting piece is simultaneously disposed in the limiting groove and the flipping piece. One end of the limiting piece is fixed to the limiting groove, and the other end of the limiting piece extends out of the flipping piece, with a locking block at the protruding end. The reinforcing piece is movably disposed in the dressing. One end of the reinforcing piece has an elastic docking block, and the elastic docking block has a locking groove corresponding to the locking block. The locking groove is exposed on the dressing surface. One end of the reinforcing piece extends from the side wall of the dressing, and the reinforcing piece can be pulled and attached to the skin surface. While the flipping piece covers the limiting groove, the locking block is embedded in the locking groove, realizing the connection operation of the reinforcing piece and the limiting piece. Thus, by dragging the outer end of the reinforcing piece and the positioning relationship of the reinforcing piece attached to the skin, the limiting piece can be tightly wrapped around and fixed to the epidural catheter, thereby further increasing the fixation and protection effect of the epidural catheter.
[0015] Preferably, the flip-up piece is provided with a filler plug at the position corresponding to the insertion port. The filler plug is used to block and seal the insertion port, and together with the flip-up piece, it isolates the channel from the outside world, thereby forming a protective layer on the outside of the dressing to prevent external bacteria and pathogens from contaminating the patient's body. At the same time, it forms a liquid-proof layer to prevent the risk of leakage from breaking through the sealing piece and overflowing along the channel.
[0016] Preferably, the skin-facing side of the patch and the inner surface of the protective patch near the edge are provided with an adhesive layer. During use, the adhesive layer on the protective patch does not come into contact with the patch. This not only fulfills the reinforcement function of the protective patch but also facilitates the subsequent removal of the protective patches and patches one by one, avoiding the problem of liquid leakage caused by directly pulling on the sealing element when pulling the protective patch later.
[0017] Preferably, the dressing and protective patch are transparent at the location of the dressing, and the inner surface of the anti-slip patch is also provided with a groove. The light transmission properties of the transparent structure allow medical personnel to directly observe the protective condition of the sealing device with the naked eye, thereby making targeted adjustments; and the groove allows part of the epidural catheter to be inserted, preventing the catheter from being compressed simultaneously when the protective patch is compressed.
[0018] Preferably, the protective patch is made of a breathable material or has multiple air pores. The breathable structure provides space for skin metabolism, helping to expel heat and moisture generated during childbirth, avoiding discomfort caused by hot and damp skin, and effectively maintaining the patch's adhesiveness. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of an embodiment of the epidural catheter fixation device for epidural analgesia during childbirth according to the present invention.
[0020] Figure 2 This is a schematic diagram of the protective sticker in the separated state in the embodiment.
[0021] Figure 3 This is a schematic diagram of the epidural catheter connection state in the embodiment.
[0022] Figure 4 This is a cross-sectional structural diagram of the epidural catheter connection state in the embodiment.
[0023] Figure 5 This is a top-down structural diagram of the embodiment.
[0024] Figure 6 This is a schematic diagram of the cross-sectional structure along the AA direction in the embodiment.
[0025] Reference numerals: 0. Epidural catheter; 1. Compression element; 10. Liquid-proof ring; 2. Adhesive; 3. Protective tape; 30. Tube groove; 4. Channel; 40. Outlet; 41. Insertion port; 5. Connecting structure; 50. Limiting groove; 51. Flip plate; 52. Limiting plate; 53. Reinforcing plate; 54. Locking block; 55. Elastic connecting block; 56. Locking groove; 6. Filler plug; 7. Adhesive layer; 8. Vent hole. Detailed Implementation
[0026] The present invention will now be further described with reference to the accompanying drawings.
[0027] like Figures 1 to 6 The epidural catheter fixation device shown for epidural analgesia during labor includes a compression element 1, a dressing 2, and a protective dressing 3.
[0028] The compression member 1 is located on one side of the dressing 2. The compression member 1 has a channel 4 through which an existing epidural catheter 0 can pass. One end of the channel 4 forms an outlet 40 on the surface of the compression member 1 away from the dressing 2, and the other end of the channel 4 forms an insertion port 41 on the surface of the dressing 2.
[0029] The compression member 1 protrudes outward from the side opposite to the dressing 2. The compression member 1 is made of flexible medical material (such as hemostatic cotton, hemostatic sponge, or sterile gauze). A liquid-proof ring 10 is provided around the outer side of the compression member 1. In this embodiment, the liquid-proof ring 10 can be made of a thin layer of medical silicone or medical rubber.
[0030] To avoid compressing the epidural catheter 0 and to ensure unobstructed passage, in this embodiment, the channel 4 is bent or tilted within the compression member 1.
[0031] The side of the dressing 2 facing the skin and the inner surface of the protective patch 3 near the edge are provided with an adhesive layer 7 (such as pressure-sensitive adhesive, hydrocolloid dressing 2 or other medical adhesives). The protective patch 3 can simultaneously cover and adhere to the dressing 2 and the surrounding skin surface.
[0032] The insertion port 41 and / or the surface of the dressing 2 are provided with a docking structure 5 for connecting the epidural catheter 0. In this embodiment, considering the fixation effect on the epidural catheter 0, part of the epidural catheter 0 can be fixed to the insertion port 41 and the surface of the dressing 2 at the same time.
[0033] That is, the docking structure 5 in this embodiment includes a limiting groove 50 and a flip piece 51. The limiting groove 50 is located on the surface of the dressing 2 away from the pressing member 1, and the epidural catheter 0 can be locked in the limiting groove 50. The flip piece 51 is movably located at the opening of the limiting groove 50, and the flip piece 51 can cover and be attached to the surface of the limiting groove 50.
[0034] Meanwhile, to further seal the insertion port 41, the flip plate 51 is provided with a filling plug 6 made of medical silicone at the position corresponding to the insertion port 41, which can be shaped and fills and presses against the insertion port 41.
[0035] In addition, to enhance the fixation effect on the epidural catheter 0, the docking structure 5 also includes a limiting piece 52 and a reinforcing piece 53. The limiting piece 52 is simultaneously disposed in the limiting groove 50 and the flip piece 51. One end of the limiting piece 52 is fixed in the limiting groove 50, and the other end of the limiting piece 52 extends out of the flip piece 51. The end of the limiting piece 52 extending outward is provided with a locking block 54. The reinforcing piece 53 is movably disposed in the dressing 2. One end of the reinforcing piece 53 is provided with an elastic docking block 55, and the elastic docking block 55 is provided with a locking groove 56 corresponding to the locking block 54. The locking groove 56 is exposed on the surface of the dressing 2. One end of the reinforcing piece 53 extends out from the side wall of the dressing 2, and the reinforcing piece 53 can be pulled and attached to the skin surface.
[0036] To facilitate monitoring for bleeding or exudation at the puncture site, the dressing 2 and protective tape 3 are transparent at the locations corresponding to dressing 2. Additionally, to ensure compatibility with the epidural catheter 0 and prevent pressure from the protective tape 3 on the epidural catheter 0, the inner surface of the anti-slip tape is provided with a groove 30.
[0037] In addition, to avoid causing discomfort to the patient's back skin during use, and to prevent sweat buildup from affecting the adhesion effect, the protective patch 3 is made of breathable material or has multiple breathable holes 8.
[0038] During use, such as Figure 4 As shown, the epidural catheter 0 is inserted through the insertion port 41 on one side of the dressing 2, and the epidural catheter 0 continues to be inserted along the channel 4 until the epidural catheter 0 protrudes from the outlet port 40 of the compression member 1. Next, the tube body of the epidural catheter 0 protruding from the outlet port 40 is placed into the patient's back, and the side of the dressing 2 with the compression member 1 and adhesive layer 7 is attached to the insertion site on the back. Appropriate force is applied so that the compression member 1 deforms appropriately and presses firmly against the insertion site to absorb oozing blood and exudate. At the same time, the dressing 2 is attached to the skin surface around the insertion site through the adhesive layer 7.
[0039] Next, the epidural catheter 0 located on the surface of the dressing 2 is inserted into the limiting groove 50, and the flip plate 51 is rotated. The flip plate 51 covers the tube body and the opening of the limiting groove 50, so that the locking block 54 is inserted into the locking groove 56 of the elastic docking block 55, realizing the connection between the reinforcing plate 53 and the limiting plate 52, with the stroke as follows. Figure 6 The state shown is as follows. The outer end of the reinforcing piece 53 is pulled so that the limiting piece 52 tightly wraps around the outer wall of the epidural catheter 0, reinforcing the connection between the epidural catheter 0 and the dressing 2, and the outer end of the reinforcing piece 53 is attached to the patient's back skin for further reinforcement.
[0040] Finally, the protective patch 3 is simultaneously covered and attached to the dressing 2 and the skin on the back. The position of the epidural catheter 0 is adjusted appropriately so that it is located in the groove 30. At this time, the connection can be strengthened and the epidural catheter can be protected to avoid excessive pressure on the catheter body.
[0041] The above description is a preferred embodiment of the present utility model. For those skilled in the art, several modifications and improvements can be made without departing from the principle of the present utility model, and these should also be considered within the protection scope of the present utility model.
Claims
1. An epidural catheter fixation device for epidural analgesia during labor, characterized in that: The device includes a compression member (1), an dressing (2), and a protective patch (3). The compression member (1) is located on one side of the dressing (2). The compression member (1) has a channel (4) through which an existing epidural catheter (0) can pass. One end of the channel (4) forms an outlet (40) on the surface of the compression member (1) away from the dressing (2). The other end of the channel (4) forms a insertion port (41) on the surface of the dressing (2). The insertion port (41) and / or the surface of the dressing (2) are provided with a docking structure (5) for connecting the epidural catheter (0). The protective patch (3) can simultaneously cover and adhere to the dressing (2) and the surrounding skin surface.
2. The epidural catheter fixation device for epidural analgesia during labor according to claim 1, characterized in that: The compression member (1) protrudes outward on the side opposite to the dressing (2). The compression member (1) is made of flexible medical material. A liquid-proof ring (10) is provided around the outside of the compression member (1).
3. The epidural catheter fixation device for epidural analgesia during labor according to claim 1, characterized in that: The channel (4) is bent or inclined in the compression member (1).
4. The epidural catheter fixation device for epidural analgesia during labor according to claim 1, characterized in that: The docking structure (5) includes a limiting groove (50) and a flip piece (51). The limiting groove (50) is located on the surface of the dressing (2) away from the pressure member (1), and the epidural catheter (0) can be locked in the limiting groove (50). The flip piece (51) is movably located at the opening of the limiting groove (50), and the flip piece (51) can cover and adhere to the surface of the limiting groove (50).
5. The epidural catheter fixation device for epidural analgesia during labor according to claim 4, characterized in that: The docking structure (5) further includes a limiting piece (52) and a reinforcing piece (53). The limiting piece (52) is simultaneously disposed in the limiting groove (50) and the flip piece (51). One end of the limiting piece (52) is fixed in the limiting groove (50), and the other end of the limiting piece (52) extends out of the flip piece (51). The end of the limiting piece (52) extending outward is provided with a locking block (54). The reinforcing piece (53) is movably disposed in the patch (2). One end of the reinforcing piece (53) is provided with an elastic docking block (55), and the elastic docking block (55) is provided with a locking groove (56) corresponding to the locking block (54). The locking groove (56) is exposed on the surface of the patch (2). One end of the reinforcing piece (53) extends out from the side wall of the patch (2), and the reinforcing piece (53) can be pulled and attached to the skin surface.
6. The epidural catheter fixation device for epidural analgesia during labor according to claim 4, characterized in that: The flip plate (51) is provided with a filling plug (6) at the position corresponding to the insertion port (41).
7. The epidural catheter fixation device for epidural analgesia during labor according to claim 1, characterized in that: The patch (2) has an adhesive layer (7) on the side facing the skin and the inner surface of the protective patch (3) near the edge.
8. The epidural catheter fixation device for epidural analgesia during labor according to claim 1, characterized in that: The dressing (2) and protective film (3) are transparent at the position of the dressing (2), and the inner surface of the anti-slip film is also provided with a groove (30).
9. The epidural catheter fixation device for epidural analgesia during labor according to any one of claims 1 to 7, characterized in that: The protective patch (3) is made of breathable material or has multiple breathable holes (8).