Fixing device for central venous catheter

Abstract

The utility model provides a fixing device of a central venous catheter, which comprises a base, the base is fixed on the body surface of a patient, a mounting part is arranged on the base, a plurality of fixing parts are arranged on the mounting part, the plurality of fixing parts are sequentially distributed in a step shape along the horizontal direction, and the fixing parts are arranged on the mounting part. The central venous catheter fixing device comprises a mounting part and a plurality of fixing parts, each fixing part is provided with a clamping groove allowing a central venous catheter to be clamped in, each fixing part is provided with a fixing piece, the fixing pieces are used for limiting the positions of the central venous catheters on the fixing parts, and the fixing parts are detachably connected with the mounting part. Disorder among a plurality of central venous catheters is avoided, medical staff can take and mark the central venous catheters conveniently, and the protection effect on a patient is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, and in particular, to a fixing device for a central venous catheter. Background Art

[0002] The content of this part only provides background information related to the utility model, which may not constitute prior art.

[0003] In clinical medicine, central venous catheters are widely used. They can be used to quickly open large venous accesses, and are suitable for rescue or measuring central venous pressure. Central venous catheters can be used to infuse irritating and highly concentrated drugs, as well as other special drugs such as chemotherapy drugs. For patients who still need chemotherapy due to phlebitis caused by peripheral catheterization, central venous catheters can avoid aggravating phlebitis. For patients who need a large amount and rapid intravenous infusion, long-term parenteral nutrition patients, long-term antibiotic injection patients, and long-term painkiller patients, central venous catheters are all required. In addition, central venous catheters are widely used in hemodialysis, plasma exchange, tumor chemotherapy, repeated infusions, and intensive care of patients. At the same time, central venous catheters are also suitable for surgical, emergency or critically ill patients, as well as patients with difficult peripheral venous puncture.

[0004] In the actual clinical medical process, the puncture end of the central venous catheter is located inside the patient's body, and part of the central venous catheter is located outside the patient's body. Usually, it is fixed with a dressing. The common central venous catheters in clinics are single-lumen, double-lumen, and triple-lumen. At present, in clinics, the central venous catheters are not fixed separately. The central venous catheters will move with the change of the patient's body position. During the patient's recovery stage, usually several central venous catheters are used in rotation. Therefore, usually, medical staff need to make special marks on different central venous catheters according to the actual situation, which is inconvenient to use, and is extremely likely to cause confusion in the use of central venous catheters, and even lead to medical accidents. Summary of the Utility Model

[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a fixing device for a central venous catheter, which can fix multiple central venous catheters separately, avoid confusion between several central venous catheters, facilitate the access and marking of medical staff, and improve the protection effect on patients.

[0006] The purpose of the utility model is achieved by the following technical solutions:

[0007] A fixing device for a central venous catheter, comprising a base fixed to the body surface of a patient. An installation part is arranged on the base, and a plurality of fixing parts are arranged on the installation part. The plurality of fixing parts are sequentially distributed in a stepped manner along the horizontal direction. A card slot for the central venous catheter to be inserted is formed in each fixing part. A fixing member is arranged on the fixing part, and the fixing member is used to limit the position of the central venous catheter on the fixing part. The fixing part is detachably connected to the installation part.

[0008] In some possible embodiments, an installation hole is formed in the base, and an installation shaft is rotatably arranged in the installation hole along the axis direction of the installation hole. The top of the installation shaft is fixedly connected to the bottom of the installation part. A limiting member is arranged on the installation part, and the limiting member is used to limit the deflection angle of the installation part on the base.

[0009] In some possible embodiments, the limiting member is set as a limiting pin. A through hole penetrating the installation part is formed in one side of the installation part along the vertical direction. The limiting member is slidably inserted into the through hole along the axis direction of the through hole, and a limiting hole for the limiting member to be inserted is formed in the base.

[0010] Furthermore, two limiting holes are formed, and the two limiting holes are symmetrically distributed on the base along the axis of the installation hole. An elastic member is arranged on the installation part, and the elastic member is used to drive the limiting member to move towards the direction close to the base.

[0011] In some possible embodiments, a counterbore is formed in the top of the installation part along the vertical direction. The counterbore is coaxially arranged with the through hole, and the aperture of the counterbore is larger than that of the through hole. A boss is coaxially arranged at the end of the limiting member away from the base, and the diameter of the boss is larger than the aperture of the counterbore. The elastic member is arranged in the counterbore, the elastic member is sleeved on the limiting member, one end of the elastic member is fixedly connected to the inner bottom of the counterbore, and the other end is fixedly connected to the lower edge of the boss. A pull ring is arranged on the top of the boss.

[0012] In some possible embodiments, a plurality of accommodating parts are arranged on the installation part, each accommodating part corresponds to a fixing part respectively. A slot is formed in the accommodating part along the horizontal direction, and one side of the slot is open. A plug is fixedly arranged at the bottom of the fixing part, and the plug is inserted and connected with the slot.

[0013] In some possible embodiments, the slot is formed as a T-shaped slot, the plug is set as a T-shaped block adapted to the slot, and an adhesive sheet is arranged on the side wall of the plug for adhesively connecting with the side wall of the slot far away from the opening.

[0014] In some possible embodiments, the fixing member includes a connecting band and a fixing band. The connecting band and the fixing band are respectively arranged on two sides of the top opening of the card slot. A hook sub-band is arranged on the connecting band, and a hook mother-band adapted to the hook sub-band is arranged on the top of the fixing band.

[0015] In some possible embodiments, the installation part is made of a transparent material. A receiving hole is opened on the side wall of the installation part along the installation direction of the central venous catheter. A plurality of receiving holes are opened, and the receiving holes correspond to the fixing parts one by one. An identification card is arranged in the receiving hole.

[0016] Furthermore, an anti-detachment part is fixedly arranged at the bottom of the installation shaft. The diameter of the anti-detachment part is larger than the diameter of the installation shaft and is adapted to the diameter of the installation hole. A retaining ring is fixedly arranged at the orifice of the installation hole. The inner diameter of the retaining ring is adapted to the diameter of the installation shaft, and the bottom of the retaining ring abuts against the top of the anti-detachment part.

[0017] In summary, the technical solutions of the embodiments of the present utility model at least have the following advantages and beneficial effects:

[0018] 1. During actual use, the central venous catheter is snapped into the card slot, and the position of the central venous catheter on the fixing part is limited by the fixing member, so that the central venous catheter can be fixed. Since there are a plurality of fixing parts on the installation part, multiple central venous catheters can be fixed respectively, effectively avoiding confusion among several central venous catheters, facilitating the access and marking by medical staff, and improving the protection effect on patients;

[0019] 2. During actual use, according to the actual use situation, the deflection angle of the installation part on the base is adjusted, which can effectively improve the application range of the device and can flexibly adjust the deflection angle of the installation part on the base according to the actual needs of the patient;

[0020] 3. When it is necessary to adjust the deflection angle of the installation part on the base, the pull ring is pulled to drive the limiting member to move away from the limiting hole, so that the end of the limiting member disengages from the limiting hole. At this time, the installation part can be driven to deflect on the base, and the operation is simple and convenient, with good practicability;

[0021] 4. During actual use, since the installation part is made of a transparent material, medical staff can directly see the identification card in the receiving hole. Different central venous catheters can be identified through the identification card, which further facilitates the marking and identification by medical staff and further improves the protection effect on patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present utility model;

[0023] Figure 2 Explosion structure diagram of the limiting member in the embodiment of the present utility model;

[0024] Figure 3 Cross-sectional view of the base in the embodiment of the present utility model;

[0025] Figure 4 Explosion structure diagram of the insertion block in the embodiment of the present utility model;

[0026] Figure 5 Structure diagram of the accommodation hole and the identification card in the embodiment of the present utility model;

[0027] Figure 6 Installation structure diagram of the central venous catheter in the card slot of the fixing part in the embodiment of the present utility model.

[0028] Icons: 1. Base; 11. Binding strap; 2. Installation part; 21. Fixing part; 22. Card slot; 3. Fixing member; 31. Connecting strap; 32. Fixing strap; 33. Hook tape; 34. Loop tape; 4. Installation hole; 41. Installation shaft; 42. Anti-detachment part; 43. Retaining ring; 5. Limiting member; 51. Through hole; 52. Limiting hole; 53. Elastic member; 54. Counterbore; 55. Boss; 56. Pull ring; 6. Accommodating part; 61. Slot; 62. Insertion block; 7. Accommodation hole; 71. Identification card; 8. Central venous catheter. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0030] The following refers to Figures 1 to 6 for a further detailed description of the present utility model.

[0031] Referring to Figure 1 , a fixing device for a central venous catheter includes a base 1, and the base 1 is fixed to the body surface of a patient. Among them, referring to Figure 1 As an implementation manner of the present utility model, a binding strap 11 is fixedly arranged at the bottom of the base 1, and the base 1 can be effectively fixed to the body surface of the patient through the binding strap 11. In addition, as other possible implementation manners of the present utility model, an adhesive part may also be arranged at the bottom of the base 1, and the base 1 is fixed to the body surface of the patient by an adhesive method.

[0032] Among them, referring to Figure 1, an installation part 2 is provided on the base 1, and a plurality of fixing parts 21 are provided on the installation part 2. As an implementation manner of the present utility model, referring to Figure 1 , three fixing parts 21 are provided; as other possible implementation manners of the present utility model, the number of the fixing parts 21 can also be set to one, two, four or other numbers, and the specific number setting is adapted to the actual needs of the patient.

[0033] Among them, referring to Figure 1 , a clamping groove 22 for clamping the central venous catheter is formed on each fixing part 21, a fixing member 3 is provided on the fixing part 21, the fixing member 3 is used to limit the position of the central venous catheter 8 on the fixing part 21, and the fixing part 21 is detachably connected to the installation part 2.

[0034] Referring to Figure 3 , an installation hole 4 is formed on the base 1, an installation shaft 41 is rotatably arranged in the installation hole 4 along the axial direction of the installation hole 4, the top of the installation shaft 41 is fixedly connected to the bottom of the installation part 2, a anti - detachment part 42 is fixedly arranged at the bottom of the installation shaft 41, the diameter of the anti - detachment part 42 is slightly larger than the diameter of the installation shaft 41, the diameter of the anti - detachment part 42 is adapted to the diameter of the installation hole 4, a retaining ring 43 is fixedly arranged at the orifice of the installation hole 4, the inner diameter of the retaining ring 43 is adapted to the diameter of the installation shaft 41, and the bottom of the retaining ring 43 is used to abut against the top of the anti - detachment part 42 to prevent the installation shaft 41 from detaching from the installation hole 4 during rotation.

[0035] In addition, as an implementation manner of the present utility model, a sliding layer is covered on the outer surface of the installation shaft 41 and the outer surface of the anti - detachment part 42, and the material of the sliding layer can be set to polytetrafluoroethylene, which can effectively reduce the friction force received by the installation shaft 41 and the anti - detachment part 42 during rotation, thereby facilitating the rotation of the installation shaft 41 and the anti - detachment part 42 in the installation hole 4.

[0036] Referring to Figure 1 , 2 , a limiting member 5 is provided on the installation part 2, and the limiting member 5 is used to limit the deflection angle of the installation part 2 on the base 1.

[0037] Among them, referring to Figure 2 , as an implementation manner of the present utility model, the limiting member 5 is set as a limiting pin, a through hole 51 penetrating the installation part 2 is formed in a vertical direction on one side of the installation part 2, the limiting member 5 is slidably inserted into the through hole 51 along the axial direction of the through hole 51, and a limiting hole 52 for inserting the limiting member 5 is formed on the base 1.

[0038] Referring to Figure 3, as an embodiment of the present utility model, two limiting holes 52 are provided. The two limiting holes 52 are symmetrically distributed on the base 1 along the axis of the mounting hole 4. An elastic member 53 is provided on the mounting portion 2, and the elastic member 53 is used to drive the limiting member 5 to move towards the direction close to the base 1.

[0039] Providing the mounting shaft 41 on the mounting portion 2 can facilitate the rotation of the mounting portion 2 on the base 1, thereby facilitating the adjustment of the position and angle of the mounting portion 2 relative to the base 1. The beneficial effect of providing two limiting holes 52 is that when the mounting portion 2 rotates 180° on the base 1, after inserting the limiting member 5 into the limiting hole 52, the angular position of the mounting portion 2 after rotation on the base 1 can be fixed again. When it is necessary to adjust the deflection angle of the mounting portion 2 relative to the base 1, the limiting member 5 is lifted upward so that the limiting member 5 overcomes the elastic force of the elastic member 53 and disengages from the limiting hole 52. Thus, the mounting portion 2 can be pushed to rotate around the mounting shaft 41 on the base 1. When the mounting portion 2 deflects to a suitable position, the limiting member 5 is released. Under the action of the elastic force of the elastic member 53, the lower end of the limiting member 5 is inserted downward into the corresponding limiting hole 52, thereby fixing the angular position of the mounting portion 2 after rotation on the base 1 again.

[0040] Referring to Figure 2 , a counterbore 54 is provided vertically at the top of the mounting portion 2. The counterbore 54 is coaxially arranged with the through hole 51, and the aperture of the counterbore 54 is larger than that of the through hole 51. A boss 55 is coaxially provided at one end of the limiting member 5 away from the base 1, and the diameter of the boss 55 is larger than the aperture of the counterbore 54. The elastic member 53 is arranged in the counterbore 54. As an embodiment of the present utility model, referring to Figure 2 , the elastic member 53 is set as a tension spring. The tension spring is sleeved on the limiting member 5. One end of the tension spring is fixed to the inner bottom of the counterbore 54 by spot welding, and the other end is fixed to the lower edge of the boss 55 by spot welding.

[0041] Referring to Figure 2 , a pull ring 56 is provided on the top of the boss 55. By pulling the pull ring 56, the limiting pin can be driven to move in the through hole 51, which facilitates the operation of medical staff.

[0042] Among them, referring to Figure 1 、 4 , a plurality of accommodating portions 6 are further provided on the mounting portion 2. A plurality of fixing portions 21 are arranged in a stepped manner in sequence along the horizontal direction. Such a staggered arrangement facilitates the access and distinction of a plurality of central venous catheters. The accommodating portions 6 correspond to the fixing portions 21 one by one. A slot 61 is provided horizontally on the accommodating portion 6, and one side of the slot 61 is open. An insertion block 62 is fixedly provided at the bottom of the fixing portion 21, and the insertion block 62 is inserted and connected with the slot 61.

[0043] As an embodiment of the present utility model, referring toFigure 4 , the slot 61 is formed as a T-shaped slot, the insertion block 62 is configured as a T-shaped block adapted to the slot 61, and an adhesive sheet is provided on the side wall of the insertion block 62 close to the accommodating portion 6. The adhesive sheet is used for adhesively connecting with the side wall of the slot 61 far from the opening. The accommodating portion 6 and the fixing portion 21 are detachably connected, which can facilitate the staff to disassemble and replace the fixing portion 21, and further improve the practicability of the device.

[0044] As an implementation manner of the present utility model, referring to Figure 4 and Figure 6 , the fixing member 3 includes a connecting belt 31 and a fixing belt 32. The connecting belt 31 and the fixing belt 32 are respectively arranged on both sides of the top opening of the card slot 22. A hook tape 33 is provided on the connecting belt 31, and a loop tape 34 adapted to the hook tape 33 is provided on the top of the fixing belt 32. Place the central venous catheter 8 in the card slot 22, then drive the connecting belt 31 to deflect towards the fixing belt 32, and bond the hook tape 33 on the connecting belt 31 with the loop tape 34 on the fixing belt 32. At this time, the connecting belt 31 can press and limit the central venous catheter 8 in the card slot 22, and can avoid the central venous catheter 8 falling off from the card slot 22 to a certain extent.

[0045] Referring to Figure 5 , the installation portion 2 is made of a transparent material. A receiving hole 7 is formed on the side wall of the installation portion 2 along the installation direction of the central venous catheter 8. A plurality of receiving holes 7 are formed, and the receiving holes 7 correspond to the fixing portions 21 one by one. An identification card 71 is provided in the receiving hole 7. During the actual treatment process, medical staff write different identifications or symbols on the identification card 71 corresponding to different central venous catheters 8 according to the actual situation, so as to effectively facilitate the medical staff to mark, identify and remember different central venous catheters 8, and further improve the protection effect on patients.

[0046] The implementation principle of a fixing device for a central venous catheter proposed by an embodiment of the present utility model is as follows:

[0047] During the actual use process, the central venous catheter 8 is snapped into the card slot 22, and the position of the central venous catheter 8 on the fixing portion 21 is limited by the fixing member 3, so that the central venous catheter 8 can be fixed. Since a plurality of fixing portions 21 are provided on the installation portion 2, a plurality of central venous catheters 8 can be fixed, thus effectively avoiding confusion among several central venous catheters 8, facilitating the memory of medical staff, and also improving the protection effect on patients.

[0048] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A central venous catheter fixing device, characterized in that: The invention comprises a base (1), wherein the base (1) is fixed to the body surface of a patient, a mounting portion (2) is arranged on the base (1), a fixing portion (21) is arranged on the mounting portion (2), a slot (22) for a central venous catheter (8) to be inserted is provided on the fixing portion (21), a fixing piece (3) is arranged on the fixing portion (21), the fixing piece (3) is used to limit the position of the central venous catheter (8) on the fixing portion (21), and the fixing portion (21) and the mounting portion (2) are detachably connected; A mounting hole (4) is provided on the base (1), a mounting shaft (41) is rotatably arranged in the mounting hole (4) along the axial direction of the mounting hole (4), the top of the mounting shaft (41) is fixedly connected to the bottom of the mounting portion (2), and a limiting member (5) is provided on the mounting portion (2).

2. A central venous catheter fixing device according to claim 1, characterized in that: The limiting member (5) is arranged as a limiting pin, and a through hole (51) penetrating the mounting portion (2) is provided on one side of the mounting portion (2) in a vertical direction, the limiting member (5) is slidably penetrated in the through hole (51) along the axial direction of the through hole (51), and a limiting hole (52) for inserting the limiting member (5) is provided on the base (1).

3. A central venous catheter fixing device according to claim 2, characterized in that: There are two limiting holes (52), which are symmetrically distributed on the base (1) along the axis of the mounting hole (4). An elastic member (53) is provided on the mounting portion (2), and the elastic member (53) is used to drive the limiting member (5) to move in a direction close to the base (1).

4. A central venous catheter fixing device according to claim 3, characterized in that: A countersunk hole (54) is provided at the top of the mounting portion (2) in a vertical direction. The countersunk hole (54) is coaxially arranged with the through hole (51). The aperture of the countersunk hole (54) is larger than the aperture of the through hole (51). A boss (55) is coaxially arranged at one end of the stopper (5) away from the base (1). The diameter of the boss (55) is larger than the aperture of the countersunk hole (54). The elastic member (53) is arranged in the countersunk hole (54). The elastic member (53) is sleeved on the stopper (5). One end of the elastic member (53) is fixedly connected to the inner bottom of the countersunk hole (54), and the other end is fixedly connected to the lower edge of the boss (55). A pull ring (56) is provided at the top of the boss (55).

5. A central venous catheter fixing device according to claim 1, characterized in that: A receiving portion (6) is provided on the mounting portion (2), the receiving portion (6) corresponding to the fixing portion (21), a slot (61) is provided on the receiving portion (6) in a horizontal direction, one side of the slot (61) is provided with an opening, an insert block (62) is fixedly provided at the bottom of the fixing portion (21), and the insert block (62) is plug-connected with the slot (61).

6. A central venous catheter fixing device according to claim 5, characterized in that: A plurality of fixing portions (21) are arranged on the mounting portion (2), the plurality of fixing portions (21) are sequentially distributed in a stepped manner along the horizontal direction, and a clamping groove (22) is respectively provided on each fixing portion (21); a plurality of accommodating portions (6) are arranged on the mounting portion (2), and each accommodating portion (6) corresponds to a fixing portion (21).

7. A central venous catheter fixing device according to claim 5, characterized in that: The slot (61) is formed as a T-shaped slot, the insert block (62) is configured as a T-shaped block adapted to the slot (61), and an adhesive sheet is provided on the side wall of the insert block (62), the adhesive sheet being used for adhesively connecting with the side wall of the slot (61) away from the opening.

8. A central venous catheter fixing device according to claim 1, characterized in that: The fixing member (3) comprises a connecting belt (31) and a fixing belt (32), wherein the connecting belt (31) and the fixing belt (32) are respectively arranged on two sides of the top opening of the card slot (22), a Velcro tape (33) is arranged on the connecting belt (31), and a Velcro mother tape (34) matched with the Velcro tape (33) is arranged on the top of the fixing belt (32).

9. A central venous catheter fixing device according to any one of claims 1 to 8, characterized in that: A receiving hole (7) is provided on the side wall of the mounting portion (2) along the mounting direction of the central venous catheter (8), the receiving hole (7) corresponding to the fixing portion (21), and an identification card (71) is arranged in the receiving hole (7).

10. A central venous catheter fixing device according to claim 1, characterized in that: An anti-slip portion (42) is fixedly arranged at the bottom of the mounting shaft (41), the diameter of the anti-slip portion (42) is larger than the diameter of the mounting shaft (41) and matches the diameter of the mounting hole (4), a retaining ring (43) is fixedly arranged at the opening of the mounting hole (4), the inner diameter of the retaining ring (43) matches the diameter of the mounting shaft (41), and the bottom of the retaining ring (43) abuts against the top of the anti-slip portion (42).

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