Fixing device for deep venous catheter

Abstract

The utility model discloses a fixing device for a deep venous catheter. The fixing device comprises a bottom plate, a U-shaped frame, a limiting assembly, an adjusting assembly and a venous indwelling tube. The number of the U-shaped frames is two, the U-shaped frames are both installed on the bottom plate, each U-shaped frame is rotationally connected with the corresponding limiting assembly, and the adjusting assemblies are installed at the bottoms of the U-shaped frames. The limiting assembly comprises a rotating shaft rotationally connected with the U-shaped frame, a first limiting tooth and a second limiting tooth, the first limiting tooth and the second limiting tooth are both arranged on the rotating shaft, the included angle formed between the first limiting tooth and the second limiting tooth is 100-150 degrees, and the venous indwelling tube can be pressed by simply pressing the venous indwelling tube. According to the venous indwelling catheter pressing device, the first limiting teeth and the second limiting teeth can be pressed, so that the stress condition of the first limiting teeth and the second limiting teeth is changed, the second limiting teeth can fix a venous indwelling catheter in the pressing process, the fixing process is simplified, and meanwhile, in the fixing process, the first limiting teeth are clamped by the guide plate and the rear baffle, and complications such as displacement and falling are avoided.

Description

Technical Field

[0001] The utility model relates to the field of deep vein fixation, in particular to a fixation device for a deep vein catheter. Background Art

[0002] Deep venous catheterization is a medical technique in which a special catheter is inserted through the skin under aseptic conditions into the lumen of a deep vein (such as the femoral vein, subclavian vein, and internal jugular vein) to administer hypertonic and highly nutrient-rich fluids (total parenteral nutrition). This technique can be used for the infusion of chemotherapy drugs, emergency treatment of patients with severe craniocerebral injuries, rapid infusion, monitoring, and nutritional support, and can also measure central venous pressure. Deep venous catheterization plays an important role in the medical field due to its advantages, such as long retention time, wide range of infusion types, and good catheter flexibility. After a venous catheter is inserted into a patient, it needs to be fixed. Existing venous catheter fixing devices mostly simply fix the connection head and tail of the venous catheter by setting fixing parts on medical silicone sheets or medical films. The purpose is to ensure the stability of the position of the catheter in the patient's body and avoid complications such as displacement and falling off. However, during the treatment process of deep venous catheterization, depending on the patient's different physical conditions, especially patients with longer venous catheters, this type of venous catheter fixing method cannot fully fix the patient. It is very easy to cause the catheter to swing and cause the patient's wound to tear, or the patient may become seriously agitated and delirious, and there is a certain possibility of unplanned extubation and catheter falling off, which poses a serious safety hazard.

[0003] In deep vein catheterization, fixation of the deep vein is a crucial link. In the prior art, a Chinese patent with publication number CN220695660U discloses a deep vein catheterization fixation device, comprising a sleeve for accommodating the venous catheter, a first fixing member detachably connected to the sleeve, and a second fixing member fixedly connected to the sleeve; a first perforated ear plate is fixedly and symmetrically arranged on the sleeve, the first fixing member comprises a first base plate for being adhered and fixed to the patient's skin, the first base plate is provided with a first fixing pin corresponding to the group of first perforated ear plates and a first movable limiting device for switching the fixed and movable relationship between the group of first perforated ear plates and the first fixing pin.

[0004] However, when using the above-mentioned device, the fixation process is relatively cumbersome, and a layer of sheath needs to be put on the outside of the intravenous catheter before fixing it. Therefore, during the fixation process, the intravenous catheter is prone to sliding or rolling in the sheath, resulting in complications such as displacement and falling off, thereby affecting the fixation effect.

[0005] Therefore, there is an urgent need for a fixing device for a deep vein catheter to solve the technical problems existing in the above-mentioned prior art. Summary of the Invention

[0006] The utility model overcomes the deficiencies of the prior art and provides a fixing device for a deep vein catheter.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a fixing device for a deep venous catheter, comprising: a base plate, a U-shaped frame, a limiting assembly, an adjusting assembly and a venous indwelling tube; the U-shaped frames have two, both of which are installed on the base plate, and each of the U-shaped frames is rotatably connected to the limiting assembly, and the adjusting assembly is installed at the bottom of the U-shaped frame; the limiting assembly comprises: a rotating shaft rotatably connected to the U-shaped frame, a first limiting tooth and a second limiting tooth, the first limiting tooth and the second limiting tooth are both arranged on the rotating shaft, and the angle formed between the first limiting tooth and the second limiting tooth is 100~150°. When fixing the venous indwelling tube, the first limiting tooth abuts against the adjusting assembly, and the second limiting tooth abuts against the venous indwelling tube.

[0008] In a preferred embodiment of the present invention, the limiting assembly includes: a guide plate and an adjustment frame slidably connected to the U-shaped frame, a spring is provided between the bottom of the guide plate and the bottom of the U-shaped frame, and when the venous indwelling tube is fixed, the first limiting tooth abuts against the guide plate.

[0009] In a preferred embodiment of the present invention, the limiting assembly further includes: a first fixing plate connected to the second limiting tooth and a second fixing plate connected to the rotating shaft, and there are gaps between the first fixing plate, the second fixing plate and the second limiting tooth.

[0010] In a preferred embodiment of the present invention, both the first fixing plate and the second fixing plate can be deformed in a small range.

[0011] In a preferred embodiment of the present invention, when the second limiting teeth are used to fix the venous catheter, one of ropes, adhesive tape, gauze, and sterile cloth can be used to tie the two second limiting teeth along the gap, thereby further fixing the venous catheter.

[0012] In a preferred embodiment of the present invention, a plurality of anti-slip teeth distributed at equal distances are provided on one side of the second limiting tooth.

[0013] In a preferred embodiment of the present invention, both the first limiting tooth and the end portion of the guide plate are arc-shaped structures.

[0014] In a preferred embodiment of the present invention, the anti-slip teeth are made of sponge or rubber.

[0015] In a preferred embodiment of the present invention, the limiting component is made of plastic or polymer material.

[0016] In a preferred embodiment of the present invention, a rear baffle is further provided at the bottom of the U-shaped frame.

[0017] In a preferred embodiment of the present invention, when fixing the intravenous indwelling tube, the first limiting tooth is located in the middle portion of the guide plate and the rear baffle.

[0018] In a preferred embodiment of the present invention, the bottom of the base plate has a medical-grade adhesive patch.

[0019] The present invention solves the defects in the background technology and has the following beneficial effects:

[0020] (1) The utility model is provided with a first limiting tooth and a second limiting tooth. When in use, the force conditions of the first limiting tooth and the second limiting tooth are changed by simply pressing the intravenous catheter, so that the second limiting tooth can fix the intravenous catheter during the pressing process, thereby simplifying the fixing process. At the same time, during the fixing process, the first limiting tooth is firmly fixed between the guide plate and the rear baffle with the support of the guide plate and the rear baffle, thereby avoiding the occurrence of complications such as displacement and falling off, thereby providing further protection for the fixing effect of the second limiting tooth.

[0021] (2) The utility model is provided with a first fixing plate and a second fixing plate. When the second limiting tooth fixes the intravenous catheter, medical staff can use tools such as ropes or tape to pass through the gap between the first fixing plate and the second limiting tooth to tie the two second limiting teeth together, thereby further ensuring the fixing effect of the second limiting teeth, thereby further enhancing the fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below with reference to the accompanying drawings and embodiments;

[0023] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present utility model;

[0024] Figure 2 This is a schematic structural diagram of the utility model when fixing a venous indwelling catheter;

[0025] Figure 3 This is a structural diagram of the U-shaped frame and the limiting assembly of the utility model;

[0026] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0027] In the figure: 1. Base plate; 2. U-shaped frame; 3. Limiting assembly; 3.1. Rotating shaft; 3.2. First limiting tooth; 3.3. Second limiting tooth; 3.4. First fixing plate; 3.5. Second fixing plate; 3.6. Anti-slip tooth; 4. Adjusting assembly; 4.1. Guide plate; 4.2. Adjusting frame; 5. Rear baffle; 6. Intravenous catheter; 7. Spring. DETAILED DESCRIPTION

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show components related to the present invention.

[0029] like Figure 1 As shown, a fixing device for a deep venous catheter includes: a base plate 1, a U-shaped frame 2, a limiting assembly 3, an adjusting assembly 4 and a venous indwelling tube 6; there are two U-shaped frames 2, both of which are installed on the base plate 1, each U-shaped frame 2 is rotatably connected to the limiting assembly 3, and the adjusting assembly 4 is installed at the bottom of the U-shaped frame 2; the limiting assembly 3 includes: a rotating shaft 3.1 rotatably connected to the U-shaped frame 2, a first limiting tooth 3.2 and a second limiting tooth 3.3, the first limiting tooth 3.2 and the second limiting tooth 3.3 are both arranged on the rotating shaft 3.1, and the angle formed between the first limiting tooth 3.2 and the second limiting tooth 3.3 is 100-150°. When fixing the venous indwelling tube 6, the first limiting tooth 3.2 abuts against the adjusting assembly 4, and the second limiting tooth 3.3 abuts against the venous indwelling tube 6. By simply pressing the venous indwelling tube 6, the force conditions of the first limiting teeth 3.2 and the second limiting teeth 3.3 are changed, so that during the pressing process, the second limiting teeth 3.3 can fix the venous indwelling tube 6, thereby simplifying the fixing process.

[0030] like Figure 2 and Figure 4 As shown, the limiting assembly 3 includes a guide plate 4.1 slidably connected to the U-shaped frame 2 and an adjustment frame 4.2. A spring 7 is interposed between the bottom of the guide plate 4.1 and the bottom of the U-shaped frame 2. When securing the intravenous catheter 6, the first limiting tooth 3.2 abuts against the guide plate 4.1. When securing the intravenous catheter 6, the first limiting tooth 3.2 is located between the guide plate 4.1 and the rear baffle 5. By pressing the adjustment frame 4.2, the guide plate 4.1 loses its limiting effect on the first limiting tooth 3.2, simplifying the disassembly process and facilitating operation.

[0031] like Figure 3 As shown, the limiting assembly 3 further includes: a first fixing plate 3.4 connected to the second limiting tooth 3.3 and a second fixing plate 3.5 connected to the rotating shaft 3.1, and there are gaps between the first fixing plate 3.4, the second fixing plate 3.5 and the second limiting tooth 3.3.

[0032] In a preferred embodiment, two adjacent second limiting teeth 3.3 are tied along the gap using one of a rope, adhesive tape, gauze, and sterile cloth, thereby further fixing the intravenous catheter 6.

[0033] A plurality of anti-slip teeth 3.6 are arranged on one side of the second limiting tooth 3.3 and are distributed at equal distances. The anti-slip teeth 3.6 are made of sponge or rubber.

[0034] The ends of the first limiting tooth 3.2 and the guide plate 4.1 are both arc-shaped structures. The limiting component 3 is made of plastic or polymer material. A rear baffle 5 is also provided at the bottom of the U-shaped frame 2.

[0035] When the present invention is used, the medical staff first sticks the entire fixing device on the patient's skin, and then places the venous indwelling tube 6 between the two limiting components 3. Thereafter, the medical staff uses two fingers to press the parts of the venous indwelling tube 6 that are not between the two limiting components 3. Since the first limiting tooth 3.2 will first contact the venous indwelling tube 6, and under the action of pressure, the first limiting tooth 3.2 and the second limiting tooth 3.3 rotate around the rotating shaft 3.1 until the end of the first limiting tooth 3.2 abuts against the top of the guide plate 4.1, and then the pressure on the venous indwelling tube 6 is stopped.

[0036] The medical staff then pinches the two second limiting teeth 3.3 and squeezes them in opposite directions, causing the first limiting teeth 3.2 to rotate again until they stop between the guide plate 4.1 and the rear baffle 5. At this point, the anti-slip teeth 3.6 at the bottom of the second limiting teeth 3.3 abut against the outer wall of the intravenous catheter 6. Since the first limiting teeth 3.2 are clamped between the guide plate 4.1 and the rear baffle 5, the second limiting teeth 3.3 can no longer rotate, thereby securing the intravenous catheter.

[0037] When the fixing device needs to be removed, the medical staff uses their fingers or tools such as tweezers to press the adjustment frame 4.2. Since the adjustment frame 4.2 is fixedly connected to the guide plate 4.1, and a spring 7 is also provided at the bottom of the guide plate 4.1, the guide plate 4.1 will lose the fixed limit on the first limiting tooth 3.2 under the action of pressure adjustment, so the first limiting tooth 3.2 and the second limiting tooth 3.3 can rotate, thereby realizing the release of the fixation of the venous indwelling tube 6.

[0038] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A fixation device for a deep vein catheter, comprising: A base plate (1), a U-shaped frame (2), a limiting assembly (3), an adjusting assembly (4) and a venous indwelling tube (6); characterized in that the U-shaped frames (2) have two each mounted on the base plate (1), each of the U-shaped frames (2) is rotatably connected to a limiting assembly (3), and the adjusting assembly (4) is mounted on the bottom of the U-shaped frame (2); the limiting assembly (3) comprises: a rotating shaft (3.1) rotatably connected to the U-shaped frame (2), a first limiting tooth (3. 2) and a second limiting tooth (3.3), the first limiting tooth (3.2) and the second limiting tooth (3.3) are both arranged on the rotating shaft (3.1), the angle formed between the first limiting tooth (3.2) and the second limiting tooth (3.3) is 100-150°, and when the venous indwelling tube (6) is fixed, the first limiting tooth (3.2) abuts against the adjusting component (4), and the second limiting tooth (3.3) abuts against the venous indwelling tube (6).

2. A fixation device for a deep vein catheter according to claim 1, characterized in that: The limiting assembly (3) comprises: a guide plate (4.1) and an adjustment frame (4.2) slidably connected to the U-shaped frame (2); a spring (7) is provided between the bottom of the guide plate (4.1) and the bottom of the U-shaped frame (2); when the venous indwelling tube (6) is fixed, the first limiting tooth (3.2) abuts against the guide plate (4.1).

3. A fixation device for a deep vein catheter according to claim 1, characterized in that: The limiting assembly (3) further comprises: a first fixing plate (3.4) connected to the second limiting tooth (3.3) and a second fixing plate (3.5) connected to the rotating shaft (3.1); gaps are provided between the first fixing plate (3.4), the second fixing plate (3.5) and the second limiting tooth (3.3).

4. A fixation device for a deep vein catheter according to claim 1, characterized in that: A plurality of anti-slip teeth (3.6) distributed at equal distances are provided on one side of the second limiting tooth (3.3).

5. The fixing device for a deep vein catheter according to claim 2, characterized in that: The ends of the first limiting tooth (3.2) and the guide plate (4.1) are both arc-shaped structures.

6. A fixation device for a deep vein catheter according to claim 4, characterized in that: The anti-slip teeth (3.6) are made of sponge or rubber.

7. The fixation device for a deep vein catheter according to claim 1, characterized in that: The limiting component (3) is made of plastic or polymer material.

8. The fixing device for a deep vein catheter according to claim 2, characterized in that: A rear baffle (5) is also provided at the bottom of the U-shaped frame (2).

9. The fixing device for a deep vein catheter according to claim 8, characterized in that: When the venous indwelling tube (6) is fixed, the first limiting tooth (3.2) is located in the middle portion between the guide plate (4.1) and the rear baffle (5).

10. The fixing device for a deep vein catheter according to claim 1, characterized in that: The bottom of the base plate (1) is provided with a medical-grade adhesive patch.

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