Anaesthesia catheter holder

Abstract

This invention discloses an anesthesia catheter fixator, relating to the field of medical device technology. The anesthesia catheter fixator includes a fixator, a positioning frame, and a locking structure. The fixator is used for connection to the human body. The positioning frame is fixed to the fixator and has a positioning hole. The catheter is inserted into the needle hole of the human body through the positioning hole. The axial direction of the positioning hole is consistent with the orientation of the needle hole to ensure that the catheter inside and outside the human body remains straight, avoiding irritation of the needle hole. The locking structure is located above the positioning frame and is used to lock the catheter extending from the positioning hole. This invention aims to keep the anesthesia catheter straight after insertion into the human body, avoid irritation of the needle hole, and improve patient comfort.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an anesthesia catheter fixator. Background Technology

[0002] Epidural anesthesia, as an important regional anesthesia technique, is widely used in surgical procedures below the abdomen, such as childbirth. During the procedure, the doctor uses a needle to pierce the patient's skin, precisely reaching the epidural space. An anesthetic catheter is then inserted through the needle into this space to continuously infuse local anesthetic, thereby blocking the spinal nerve roots and producing local paralysis. For mothers in labor, the anesthetic catheter is typically inserted when the cervix has dilated to approximately two centimeters and must be maintained until delivery is complete. Its use often exceeds twelve hours, or even longer, placing strict requirements on the stability and fixation of the catheter.

[0003] In current clinical practice, the fixation of anesthetic catheters mainly relies on the direct application of specialized adhesive tape to the patient's skin. However, this method has significant shortcomings: the placement and angle of the tape are difficult to precisely control, resulting in a significant bend between the anesthetic catheter and the skin puncture site. This bend subjectes the catheter to continuous lateral stress at the puncture site, which not only easily enlarges the puncture wound, causing local bleeding and tissue damage, but also exacerbates patient pain. Simultaneously, the bend in the catheter path increases the likelihood of internal blockage and generates additional traction during patient movement or changes in position, potentially leading to accidental catheter displacement. Especially under prolonged use, these problems accumulate repeatedly, seriously threatening the stability of anesthetic efficacy and patient safety and comfort. Summary of the Invention

[0004] The main objective of this invention is to provide an anesthesia catheter fixator, which aims to keep the anesthesia catheter straight after it is inserted into the human body, avoid irritating the needle hole, and improve patient comfort.

[0005] To achieve the above objectives, the anesthesia catheter fixator proposed in this invention includes: A fastener for connection to a human body; A positioning frame is fixed to the fixing member. The positioning frame has a positioning hole. The catheter is inserted into the needle hole of the human body through the positioning hole. The axial direction of the positioning hole is consistent with the direction of the needle hole to ensure that the catheter inside the human body and the catheter extending out of the human body remain straight and avoid irritating the needle hole. A locking structure is provided above the positioning frame for locking the conduit extending out of the positioning hole.

[0006] In one embodiment, a groove is formed at the bottom of the positioning frame, and a positioning hole is formed on the bottom wall of the groove, extending to the top surface of the positioning frame. The groove separates the positioning hole from the pinhole, so as to prevent the catheter inside the human body from being directly pulled when the positioning frame undergoes slight displacement.

[0007] In one embodiment, the two sides of the groove are transparent plates, which are used to observe pinholes.

[0008] In one embodiment, the diameter of the positioning hole is larger than the diameter of the conduit.

[0009] In one embodiment, the locking structure includes a rotating cover rotatably disposed above the positioning frame, the rotating cover having a locked state and an open state to lock or unlock the conduit.

[0010] In one embodiment, the rotating cover is an arc-shaped cover, and the top of the positioning frame is provided with an arc-shaped protrusion. The protrusion is located on one side of the rotating cover, and the opening of the positioning hole is located between the protrusion and the rotating cover. When the rotating cover is in the locked state, the conduit is squeezed onto the protrusion to complete the locking. This arrangement can prevent the conduit from bending and getting blocked.

[0011] In one embodiment, both the rotating cover and the convex bulge are provided with relief grooves, the shape of which corresponds to the shape of the conduit.

[0012] In one embodiment, the rotating cover is connected to the convex bulge via Velcro.

[0013] In one embodiment, the surface of the relief groove on the convex bulge is provided with adhesive.

[0014] In one embodiment, the rotating cover has a pivot on one side and a handle on the other side.

[0015] This application provides an anesthesia catheter fixator, including a fixation element, a positioning frame, and a locking structure. By aligning the axis of the positioning hole with the direction of the needle hole, the catheter is kept straight, thereby solving the problems of needle hole enlargement, bleeding, pain, and blockage caused by catheter bending in the prior art. It has the advantages of keeping the catheter straight, avoiding stimulation of the needle hole, and improving patient comfort. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A frontal perspective view of an embodiment of the anesthesia catheter fixator provided by the present invention; Figure 2 This is a three-dimensional structural diagram of the bottom surface of an embodiment of the anesthesia catheter fixator provided by the present invention.

[0018] Explanation of icon numbers: 1000. Anesthesia catheter fixator; 1. Fixing component; 2. Positioning frame; 21. Positioning hole; 22. Groove; 23. Transparent plate; 3. Locking structure; 31. Rotating cover; 32. Arc-shaped protrusion; 33. Relief groove; 35. Handle position; 2000. Catheter.

[0019] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0023] Current methods of securing anesthesia catheters typically involve directly attaching the catheter to the patient's skin using specialized adhesive tape. This method has drawbacks, as it can create a significant bend between the catheter and the needle puncture site on the patient's body. This bend can enlarge the puncture site, potentially leading to bleeding and affecting the anesthesia's effectiveness and patient comfort.

[0024] In response, this application proposes an anesthesia catheter fixator 1000, which includes: Fixture 1, which is used for connection with the human body; Positioning frame 2 is fixed to the fixing member 1. Positioning frame 2 has a positioning hole 21. The catheter 2000 is inserted into the needle hole of the human body through the positioning hole 21. The axial direction of the positioning hole 21 is consistent with the direction of the needle hole, so as to ensure that the catheter 2000 inside the human body and the catheter 2000 extending out of the human body remain straight and avoid irritating the needle hole. Locking structure 3, which is located above the positioning frame 2, is used to lock the conduit 2000 that extends out of the positioning hole 21.

[0025] For ease of understanding, the following explains some key terms in this embodiment: Fixing component 1 refers to the part used to connect the anesthesia catheter fixator 1000 to the surface of the human body. The fixing component 1 can take various forms, such as medical tape, adhesive, straps, or suction cups, and its main function is to provide stable support and ensure that the anesthesia catheter fixator 1000 does not shift on the patient's body surface.

[0026] The positioning frame 2 is a support structure fixed to the fixing member 1, and has a positioning hole 21 inside. The function of the positioning frame 2 is to provide precise guidance and support for the catheter 2000, ensuring that the catheter 2000 can be accurately inserted into the human body needle hole and maintain its preset axial direction.

[0027] Positioning hole 21 refers to the hole opened on the positioning frame 2, through which the catheter 2000 will be inserted into the human body through the needle hole. The axial direction of the positioning hole 21 is designed to be consistent with the orientation direction of the needle hole, so as to guide the catheter 2000 into the human body in a straight path and avoid the catheter 2000 bending at the needle hole.

[0028] Catheter 2000 refers to an anesthesia catheter 2000 used for epidural anesthesia, with one end inserted into the human body through a needle hole and the other end extending out of the body.

[0029] A pinhole is a puncture hole formed in the skin of a person for inserting an anesthesia catheter.

[0030] The locking structure 3 is a component located above the positioning frame 2, used to secure the catheter 2000 extending from the positioning hole 21. This locking structure 3 prevents the catheter 2000 from accidentally slipping or shifting during anesthesia through physical constraints or friction.

[0031] The anesthesia catheter fixator 1000 of this application is connected to the human body via a fixation member 1. The positioning hole 21 on the positioning frame 2 guides the catheter 2000 to be inserted in an axial direction consistent with the needle hole, and the catheter 2000 is fixed by a locking structure 3. This effectively avoids the problems caused by traditional adhesive tape fixation methods, such as the catheter 2000 bending at the needle hole, irritating the needle hole, or widening the needle hole and causing bleeding. It ensures that the catheter 2000 remains straight inside and outside the human body, improving the stability of anesthesia and patient comfort, and is especially suitable for applications requiring prolonged epidural anesthesia.

[0032] This application further proposes that a groove 22 is provided at the bottom of the positioning frame 2, and a positioning hole 21 is provided on the bottom wall of the groove 22, extending through to the top surface of the positioning frame 2. The groove 22 separates the positioning hole 21 from the needle hole, so as to prevent the catheter 2000 inside the human body from being directly pulled when the positioning frame 2 undergoes slight displacement.

[0033] With the above configuration, a groove 22 is formed at the bottom of the positioning frame 2, and a positioning hole 21 is located on the bottom wall of the groove 22. The groove 22 effectively creates a physical gap between the positioning hole 21 and the needle hole in the human body, and the catheter 2000 is in a non-taut state within the groove 22. When the positioning frame 2 experiences slight displacement due to external factors, the presence of the groove 22 prevents the main body of the positioning frame 2 from directly contacting or pulling the catheter 2000 inserted into the human body. Instead, the space inside the groove 22 absorbs part of the displacement, thus avoiding direct stimulation and damage to the needle hole. This design significantly reduces the mechanical stress on the catheter 2000 at the needle hole, improves patient comfort and safety, effectively prevents complications caused by catheter 2000 displacement, and ensures the stability and reliability of the anesthesia process.

[0034] This application further proposes that the two sides of the groove 22 are transparent plates 23, which are used for observing the needle hole. The transparent plates 23 are designed to provide medical personnel with an unobstructed observation window, allowing them to directly and clearly observe the needle hole area of ​​the catheter 2000 after insertion into the human body without removing or significantly adjusting the anesthesia catheter fixator 1000. Through the transparent plates 23, medical personnel can monitor the color of the skin around the needle hole, whether there is bleeding, swelling, erythema, signs of infection, or abnormalities such as catheter 2000 displacement in real time.

[0035] This application further proposes that the diameter of the positioning hole 21 is larger than the diameter of the catheter 2000. By designing the diameter of the positioning hole 21 to be larger than the diameter of the catheter 2000, a certain gap is formed between the inner wall of the positioning hole 21 and the outer wall of the catheter 2000 when the catheter 2000 passes through the positioning hole 21. This design makes the insertion and adjustment of the catheter 2000 smoother, improving the convenience of operation and patient comfort.

[0036] This application further proposes that the locking structure 3 includes a rotating cover 31, which is rotatably disposed above the positioning frame 2. The rotating cover 31 has a locked state and an open state to lock or unlock the conduit 2000.

[0037] The rotating cover 31 has a locked state and an open state to lock or unlock the conduit 2000. The "locked state" means the rotating cover 31 is in a position that fixes the conduit 2000, preventing it from moving freely; the "open state" means the rotating cover 31 is in a position that allows the conduit 2000 to be freely inserted, removed, or adjusted. These two states are typically defined by specific angular positions of the rotating cover 31. For example, when the rotating cover 31 rotates to completely cover the conduit 2000 and applies pressure, it is in the locked state; when the rotating cover 31 rotates to completely remove the area above the conduit 2000, it is in the open state. To ensure clarity of the state, locking, limiting structures, or indicator marks can be designed to help the operator accurately identify the current state. In the locked state, the rotating cover 31, in cooperation with the positioning bracket 2 or other components, applies a certain pressure or restriction to the conduit 2000, preventing it from moving axially or radially within the positioning hole 21, thereby ensuring the stable fixation of the conduit 2000. With the tube open, rotating the cap 31 removes the restriction on the catheter 2000, facilitating insertion, removal, adjustment, or replacement by medical personnel. This provides a simple, intuitive, and efficient catheter 2000 locking mechanism.

[0038] This application further proposes that the rotating cover 31 is an arc-shaped cover, and the top of the positioning frame 2 is provided with an arc-shaped protrusion 32. The protrusion is located on one side of the rotating cover 31, and the opening of the positioning hole 21 is located between the protrusion and the rotating cover 31. When the rotating cover 31 is in the locked state, the conduit 2000 is pressed onto the protrusion to complete the locking. This setting can prevent the conduit 2000 from bending and getting blocked.

[0039] Specifically, the arc-shaped cap refers to the portion of the cap that contacts or covers the conduit 2000 having an arc-shaped structure. This arc-shaped design allows for a better fit to the shape of the conduit 2000, providing a more uniform contact surface and avoiding sharp stress concentrations on the conduit 2000. It can be a semi-circular shape, a portion of an ellipse, or other curvature that matches the outer diameter of the conduit 2000. The arc-shaped protrusion 32 is an upward-protruding arc-shaped structure on the top of the positioning frame 2, serving as a support surface and force-bearing surface for the conduit 2000. When the rotating cap 31 is rotated to the locked position, the conduit 2000 is precisely clamped between these two arc-shaped structures. When the rotating cap 31 is rotated from the open state to the locked state, its arc-shaped inner surface gradually approaches and presses against the conduit 2000, smoothly pushing the conduit 2000 onto the arc-shaped protrusion 32 on the top of the positioning frame 2. This compression is not a simple flattening, but rather, through the cooperation of two arc-shaped surfaces, the catheter 2000 is evenly and firmly clamped within the pre-set arc-shaped channel, thereby achieving reliable locking of the catheter 2000. When the rotating cover 31 is in the locked state, the catheter 2000 is smoothly compressed onto the arc-shaped protrusion 32, forming a stable arc-shaped channel. This effectively prevents the catheter 2000 from bending or twisting locally during the locking process, ensuring the unobstructed flow of the catheter 2000's inner cavity and preventing blockage.

[0040] This application further proposes that both the rotating cover 31 and the convex shroud are provided with relief grooves 33, the shape of which corresponds to the catheter 2000. Specifically, the relief groove 33 is a recessed structure designed to accommodate the catheter 2000. Its placement on the rotating cover 31 and the convex shroud means that when the rotating cover 31 is closed, the catheter 2000 can be covered and fixed by the groove 22 formed by these two components. This design provides a support and constraint space that matches the shape of the catheter 2000, thereby achieving more precise and stable positioning and locking. The depth and width of the relief groove 33 should be designed according to the diameter and material of the catheter 2000 used to ensure that, in the locked state, the catheter 2000 can be firmly clamped without being subjected to excessive compression that could deform or damage it. This ensures the safety and stability of the anesthesia process.

[0041] This application further proposes that the rotating cover 31 is connected to the convex bulge via Velcro. The use of Velcro allows medical staff to quickly and conveniently complete locking and unlocking operations, improving operational efficiency.

[0042] This application further proposes that the surface of the relief groove 33 on the bulge is provided with adhesive. When the rotating cover 31 presses the catheter 2000 into the relief groove 33 on the bulge, the adhesive on the surface of the relief groove 33 can form a tight contact and adhesion with the outer surface of the catheter 2000. This adhesion significantly increases the fixation strength and stability of the catheter 2000 within the relief groove 33, effectively suppressing minor displacements of the catheter 2000 in the axial and rotational directions. Furthermore, in the non-use state, the adhesive is covered with oily paper, which is torn off by medical personnel before use.

[0043] This application further proposes that in the aforementioned anesthesia catheter fixator 1000, the rotating cover 31 has a rotating shaft on one side and a handle position 35 on the other side. The handle position 35 on the other side of the rotating cover 31 provides medical personnel with a convenient and ergonomic operating point, enabling users to easily and quickly operate the rotating cover 31.

[0044] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An anesthesia catheter fixator, characterized in that, The anesthesia catheter fixator includes: A fastener for connection to a human body; A positioning frame is fixed to the fixing member. The positioning frame has a positioning hole. The catheter is inserted into the needle hole of the human body through the positioning hole. The axial direction of the positioning hole is consistent with the direction of the needle hole to ensure that the catheter inside the human body and the catheter extending out of the human body remain straight and avoid irritating the needle hole. A locking structure is provided above the positioning frame for locking the conduit extending out of the positioning hole.

2. The anesthesia catheter fixator as described in claim 1, characterized in that, The bottom of the positioning frame has a groove, and the bottom wall of the groove has a positioning hole that extends through to the top surface of the positioning frame. The groove separates the positioning hole from the needle hole to prevent the catheter inside the human body from being pulled directly when the positioning frame is slightly displaced.

3. The anesthesia catheter fixator as described in claim 2, characterized in that, The two sides of the trough are transparent plates, which are used to observe pinholes.

4. The anesthesia catheter fixator as described in claim 2, characterized in that, The diameter of the positioning hole is larger than the diameter of the conduit.

5. The anesthesia catheter fixator as described in claim 1, characterized in that, The locking structure includes a rotating cover, which is rotatably disposed above the positioning frame. The rotating cover has a locked state and an open state to lock or unlock the catheter.

6. The anesthesia catheter fixator as described in claim 5, characterized in that, The rotating cover is an arc-shaped cover, and the top of the positioning frame is provided with an arc-shaped protrusion. The protrusion is located on one side of the rotating cover, and the opening of the positioning hole is located between the protrusion and the rotating cover. When the rotating cover is in the locked state, the conduit is squeezed onto the protrusion to complete the locking. This setting can prevent the conduit from bending and getting blocked.

7. The anesthesia catheter fixator as described in claim 6, characterized in that, Both the rotating cover and the convex bulge are provided with relief grooves, the shape of which corresponds to the guide tube.

8. The anesthesia catheter fixator as described in claim 7, characterized in that, The rotating cover is connected to the convex bulge via Velcro.

9. The anesthesia catheter fixator as described in claim 8, characterized in that, The surface of the relief groove on the convex bulge is provided with adhesive.

10. The anesthesia catheter fixator as described in claim 8, characterized in that, The rotating cover has a pivot on one side and a handle on the other side.

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