Catheter neck fixing device

Abstract

The utility model discloses a neck fixing device for a catheter, which relates to the technical field of medical instruments and comprises a fixing unit, a neck fixing ring, a neck adjusting ring, a fixing unit and a neck adjusting unit. The limiting unit comprises limiting deflector rods rotationally connected with the neck fixing ring, the limiting deflector rods are arranged on the side edges of the two ends of the neck fixing ring, and limiting torsional springs are further arranged at the rear ends of the limiting deflector rods; the catheter fixing unit comprises a catheter fixing plate which is connected with the neck fixing ring, and a clamping rod and a clamping spring are further arranged on the inner side of the catheter fixing plate. The fixing device has the advantages that the neck fixing ring is matched with the neck adjusting ring, so that the fixing device can adapt to different patients, comfort of the patients is guaranteed through shape optimization, the catheter fixing unit fixes a catheter while protecting a catheter suturing fixing end, and the fixing condition of the catheter can be conveniently observed at any time due to the openable design.

Description

Technical Field

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

[0002] Extracorporeal membrane oxygenation is mainly used to provide continuous extracorporeal respiration and circulation to patients with severe cardiopulmonary failure in order to maintain their lives. When a catheter is inserted into the neck of a patient undergoing ECMO treatment, the catheter is clinically fixed by sutured to the patient's neck in sections. Due to the special structure of the head, such as hair, the catheter cannot be directly fixed to the head with an adhesive bandage. Due to turning over, transportation, and patient irritability, the catheter may shift and loosen, affecting the stability of blood flow in the catheter, causing instrument alarms, and even requiring re-catheterization, which greatly increases the difficulty for medical staff to maintain ECMO.

[0003] To this end, in addition to suturing and fixing the catheter at the neck, a device is also needed to protect and fix the catheter to prevent the catheter from shifting and posing a threat to the patient.

[0004] In view of the above problems, a catheter neck fixing device is proposed to solve the above problems. Utility Model Content

[0005] Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0006] In view of the above-mentioned prior art problems, the present utility model is proposed.

[0007] The utility model aims to provide a catheter neck fixing device, which aims to solve the problem of fixing the catheter at the neck.

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions: a catheter neck fixing device, which includes a fixing unit, including a neck fixing ring, which is arc-shaped, and the front end of the neck fixing ring is connected to a neck adjustment ring, and the two form an elliptical ring;

[0009] The limiting unit comprises a limiting lever rotatably connected to the neck fixing ring, which is arranged at the sides of both ends of the neck fixing ring, and a limiting torsion spring is also arranged at the rear end of the limiting lever, which connects the neck fixing ring and the limiting lever;

[0010] The catheter fixing unit comprises a catheter fixing plate which is connected to the neck fixing ring, and a clamping rod and a clamping spring are arranged on the inner side of the catheter fixing plate.

[0011] As a preferred solution of the catheter neck fixing device of the utility model, wherein: the two ends of the outer side surface of the neck fixing ring are provided with fixing engaging teeth, and the two ends of the bottom surface and the top surface are provided with connecting holes.

[0012] As a preferred solution of the catheter neck fixing device of the utility model, wherein: adjusting engaging teeth are provided on both ends of the outer side surface of the neck adjustment ring, and are connected and matched with the fixing engaging teeth.

[0013] As a preferred solution of the catheter neck fixing device of the utility model, wherein: the upper and lower ends of the limit lever are L-shaped rotating rods, and the side ends of the L-shaped rotating rod are provided with connecting rods, which are arranged in the connecting hole.

[0014] As a preferred solution of the catheter neck fixing device of the utility model, wherein: the limit torsion spring is arranged around the connecting rod, the lower end of which is fixed in the connecting hole, and the upper end is connected to the L-shaped rotating rod. In the natural state, the limit torsion spring provides a torque for the limit lever to fit the neck fixing ring.

[0015] As a preferred solution of the catheter neck fixing device of the utility model, wherein: a catheter positioning hole is also opened on one side of the neck fixing ring near the end, a telescopic groove is opened on the side wall of the catheter positioning hole, and a locking groove is opened on the outer side wall of the neck fixing ring near the catheter positioning hole.

[0016] As a preferred solution of the catheter neck fixing device of the utility model, the catheter fixing plate is arranged on the front side of the neck fixing ring, which is a double-layer plate, and the rear side plate of the catheter fixing plate is a telescopic plate, which is arranged in the telescopic groove.

[0017] As a preferred solution of the catheter neck fixing device of the utility model, wherein: a clamping rod groove is opened on the inner side of the catheter fixing plate, and the inner opening of the clamping rod groove is opposite to the clamping groove.

[0018] As a preferred solution of the catheter neck fixing device of the utility model, wherein: the locking rod is rotatably arranged in the locking rod groove, one end of the locking spring is fixed to the inner wall of the locking rod groove, and the other end is connected to the locking rod.

[0019] As a preferred solution of the catheter neck fixing device of the utility model, wherein: a Velcro is also fixedly provided on the outer side of the catheter fixing plate, the middle part of the Velcro is a circular groove, and catheter fixing adhesive tapes are also provided on both ends of the outer side of the Velcro, and a sponge pad is provided on the inner side of one of the catheter fixing adhesive tapes.

[0020] The beneficial effects of the catheter neck fixing device of the utility model are as follows: the neck fixing ring and the neck adjustment ring cooperate to enable the device to adapt to different patients, and through shape optimization, the neck fixing ring fits the neck while the front neck adjustment ring maintains a certain space with the neck to ensure the patient's comfort, the catheter fixing unit protects the catheter suture fixing end while fixing the catheter, and adopts an openable design to facilitate observation of the catheter fixation status at any time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0022] Figure 1 It is an overall schematic diagram of the catheter neck fixing device in the present invention.

[0023] Figure 2 It is an exploded schematic diagram of the catheter neck fixing device in the utility model.

[0024] Figure 3 It is a schematic diagram of the neck fixing ring in the utility model.

[0025] Figure 4 It is a cross-sectional view of the catheter fixing plate in the present utility model. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] Reference Figure 1 to Figure 3, which is the first embodiment of the utility model, and provides a catheter neck fixing device, including a fixing unit 100, including a neck fixing ring 101, which is arc-shaped, and the front end of the neck fixing ring 101 is connected to a neck adjustment ring 102, and the two form an elliptical ring, and the neck fixing ring 101 and the main body of the neck fixing ring 101 are made of medical silicone, which has the characteristic of micro-deformation;

[0031] The limiting unit 200 includes a limiting lever 201 rotatably connected to the neck fixing ring 101 , which is arranged on both ends of the side of the neck fixing ring 101 . A limiting torsion spring 202 is also arranged at the rear end of the limiting lever 201 , which connects the neck fixing ring 101 and the limiting lever 201 .

[0032] Furthermore, the inner side of the neck fixing ring 101 is a slightly convex arc surface in the middle, so that it fits the patient's neck more closely. Fixed engaging teeth 101a are provided at both ends of its outer side surface, and connecting holes 101b are provided at both ends of the bottom surface and the top surface. The inclined surface of the fixed engaging teeth 101a points to the end of the neck fixing ring 101.

[0033] Furthermore, adjusting engaging teeth 102a are extended from both ends of the outer side surface of the neck adjustment ring 102, which are connected and cooperated with the fixed engaging teeth 101a. The adjusting engaging teeth 102a are consistent in length with the fixed engaging teeth 101a. When the adjusting engaging teeth 102a are fully engaged with the fixed engaging teeth 101a, the neck fixing ring 101 and the neck adjusting ring 102 are completely in conflict.

[0034] Furthermore, the upper and lower ends of the limit lever 201 are L-shaped rotating rods 201a, and the side ends of the L-shaped rotating rod 201a are provided with connecting rods 201b, which are arranged in the connecting hole 101b and are rotatably connected to the neck fixing ring 101.

[0035] Furthermore, the limiting torsion spring 202 is arranged around the connecting rod 201b, with its lower end fixed in the connecting hole 101b and its upper end connected to the L-shaped rotating rod 201a. In the natural state, the limiting torsion spring 202 provides a torque for the limiting lever 201 to fit the neck fixing ring 101.

[0036] When in use, place the neck fixing ring 101 on the back of the patient's neck, then place the neck adjusting ring 102, extend the adjusting engaging tooth 102a into the limiting lever 201 and engage with the fixed engaging tooth 101a to adjust the tightness of the device so that it fits the patient's neck to complete the installation; when it needs to be removed, push the limiting lever 201 outward to loosen the limit on the adjusting engaging tooth 102a, and then slightly open the adjusting engaging tooth 102a to both sides to take out the neck adjusting ring 102 to complete the disassembly.

[0037] In summary, the neck fixing ring 101 and the neck adjusting ring 102 cooperate to enable the device to adapt to different patients. The engaging state is adjusted by the limiting unit 200, and installation and disassembly can be achieved quickly and conveniently.

[0038] Example 2

[0039] Reference Figure 1 to Figure 4 , which is the second embodiment of the utility model, is based on the previous embodiment and provides a catheter neck fixing device, further comprising a catheter fixing unit 300, including a catheter fixing plate 301, which is connected to the neck fixing ring 101, and a locking rod 302 and a locking spring 303 are also provided on the inner side of the catheter fixing plate 301.

[0040] Furthermore, a catheter positioning hole 101c is provided on one side of the neck fixing ring 101 near the end, a telescopic groove 101d is provided on the side wall of the catheter positioning hole 101c, and a locking groove 101e is provided on the outer side wall of the neck fixing ring 101 near the catheter positioning hole 101c.

[0041] Furthermore, the catheter fixing plate 301 is arranged on the front side of the neck fixing ring 101, and fits the neck fixing ring 101, and cooperates with the catheter positioning hole 101c. It is a double-layer plate. The rear side plate of the catheter fixing plate 301 is the telescopic plate 301a, which is arranged in the telescopic groove 101d. The catheter fixing plate 301 can be adjusted along the telescopic groove 101d.

[0042] Furthermore, a locking rod groove 301b is provided on the inner side of the catheter fixing plate 301, which penetrates the catheter fixing plate 301, and the inner opening of the locking rod groove 301b is opposite to the locking groove 101e. When the catheter fixing plate 301 completely covers the catheter positioning hole 101c, the inner opening of the locking rod groove 301b coincides with the locking groove 101e.

[0043] Furthermore, the locking rod 302 is rotatably disposed in the locking rod slot 301b, and its front end extends out of the front opening of the locking rod slot 301b. One end of the locking spring 303 is fixed to the inner wall of the locking rod slot 301b, and the other end is connected to the locking rod 302.

[0044] During use, when installing the neck fixing ring 101, the catheter positioning hole 101c is aligned with the catheter suture fixing end. After the installation is completed, the catheter fixing plate 301 is pushed to make the rear end of the locking rod 302 cooperate with the locking groove 101e to limit the catheter fixing plate 301. At this time, the catheter fixing plate 301 completely closes the catheter positioning hole 101c to protect the catheter suture fixing end; when it is necessary to observe the catheter suture fixing end, the front end of the locking rod 302 is pressed to make the rear end of the locking rod 302 disengage from the locking groove 101e, release the limitation of the catheter fixing plate 301, and push the catheter fixing plate 301 to open the catheter positioning hole 101c.

[0045] In summary, by designing the catheter fixing plate 301, it is convenient to protect the catheter suture end while observing and monitoring it at any time.

[0046] Example 3

[0047] Reference Figure 1-2 , which is the third embodiment of the utility model. Based on the above embodiments, this embodiment further provides a catheter neck fixing device, wherein a Velcro 301c is fixedly provided on the outer side of the catheter fixing plate 301, a circular groove 301c-1 is provided in the middle of the Velcro 301c, and catheter fixing adhesive tapes 301d are provided on both ends of the outer side of the Velcro 301c, and a sponge pad layer is provided on the inner side of one of the catheter fixing adhesive tapes 301d.

[0048] When in use, the catheter is placed in the circular groove 301c-1, and then the catheter fixing adhesive tapes 301d on both sides are sequentially adhered to fix the catheter, thereby completing the placement of the catheter.

[0049] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0050] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0051] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A catheter neck fixing device, characterized in that: include, The fixing unit (100) comprises a neck fixing ring (101) which is arc-shaped, and the front end of the neck fixing ring (101) is connected to a neck adjusting ring (102), and the two form an elliptical ring; The limiting unit (200) comprises a limiting lever (201) rotatably connected to the neck fixing ring (101), which is arranged on both ends of the side of the neck fixing ring (101), and a limiting torsion spring (202) is also arranged at the rear end of the limiting lever (201), which connects the neck fixing ring (101) and the limiting lever (201); The catheter fixing unit (300) comprises a catheter fixing plate (301) which is connected to the neck fixing ring (101), and a clamping rod (302) and a clamping spring (303) are also arranged on the inner side of the catheter fixing plate (301).

2. The catheter neck fixing device according to claim 1, characterized in that: The two ends of the outer side surface of the neck fixing ring (101) are provided with fixing engaging teeth (101a), and the two ends of the bottom surface and the top surface are provided with connecting holes (101b).

3. The catheter neck fixing device according to claim 2, characterized in that: Adjustment engaging teeth (102a) are provided at both ends of the outer side surface of the neck adjustment ring (102), and are connected and matched with the fixed engaging teeth (101a).

4. The catheter neck fixing device according to claim 3, characterized in that: The upper and lower ends of the limit lever (201) are L-shaped rotating rods (201a), and the side ends of the L-shaped rotating rod (201a) are provided with connecting rods (201b) which are arranged in the connecting hole (101b).

5. The catheter neck fixing device according to claim 4, characterized in that: The limit torsion spring (202) is arranged around the connecting rod (201b), with its lower end fixed in the connecting hole (101b) and its upper end connected to the L-shaped rotating rod (201a). In a natural state, the limit torsion spring (202) provides a torsion force for the limit lever (201) to fit the neck fixing ring (101).

6. The catheter neck fixing device according to claim 5, characterized in that: A catheter positioning hole (101c) is also provided on one side of the neck fixing ring (101) near the end, a telescopic groove (101d) is provided on the side wall of the catheter positioning hole (101c), and a locking groove (101e) is provided on the outer side wall of the neck fixing ring (101) near the catheter positioning hole (101c).

7. The catheter neck fixing device according to claim 6, characterized in that: The catheter fixing plate (301) is arranged on the front side of the neck fixing ring (101) and is a double-layer plate. The rear side plate of the catheter fixing plate (301) is a telescopic plate (301a) which is arranged in the telescopic groove (101d).

8. The catheter neck fixing device according to claim 6, characterized in that: A locking rod groove (301b) is provided on the inner side of the catheter fixing plate (301), and the inner opening of the locking rod groove (301b) is opposite to the locking groove (101e).

9. The catheter neck fixing device according to claim 6, characterized in that: The locking rod (302) is rotatably disposed in the locking rod groove (301b); one end of the locking spring (303) is fixed to the inner wall of the locking rod groove (301b), and the other end is connected to the locking rod (302).

10. The catheter neck fixing device according to claim 8, characterized in that: A Velcro (301c) is also fixedly arranged on the outer side of the catheter fixing plate (301), the middle of the Velcro (301c) is a circular groove (301c-1), and catheter fixing adhesive strips (301d) are also arranged at both ends of the outer side of the Velcro (301c), and a sponge cushion layer is arranged on the inner side of one of the catheter fixing adhesive strips (301d).

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