Needle-falling-preventing safe indwelling device for blood purification dialysis

Abstract

The utility model discloses an anti-needle-falling safe indwelling device for blood purification dialysis, relates to the technical field of medical auxiliary instruments, and aims to solve the technical problems that a conventional adhesive tape sticking mode is easy to fall off due to sweating of a patient, and a medical adhesive tape needs to be torn off after hemodialysis is finished, so that pain is brought to the patient. Comprising a placing plate, a protection mechanism and a positioning mechanism, the protection mechanism and the positioning mechanism are arranged on the placing plate, the protection mechanism comprises a first protection shell and a second protection shell which are symmetrically and rotatably installed at the side end of the placing plate, and small holes are evenly distributed in the first protection shell and the second protection shell; and connecting rods are installed on the inner wall of the first protective shell and the inner wall of the second protective shell correspondingly, limiting plates are installed at the tail ends of the connecting rods, the positioning mechanism comprises two sets of positioning plates, and the two sets of positioning plates are symmetrically distributed. The hemodialysis puncture needle has the advantages that the puncture needle can be prevented from falling off, the arm and the puncture position can be protected, and the stability of hemodialysis treatment is further improved.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, and more specifically, to a safe indwelling device for preventing needle dislodgement in blood purification dialysis. Background Technology

[0002] Blood purification dialysis is a life support technology for patients with kidney failure. Through extracorporeal circulation, blood is drawn out of the body, toxins and excess water are filtered out, and then returned to the body, helping to maintain metabolic balance and prolong survival. Blood purification dialysis is considered a key treatment for kidney disease. Using a dialyzer to simulate kidney function, it precisely removes metabolic waste products such as urea and creatinine from the blood. Regular treatment rekindles hope for health for patients with severe kidney failure and poisoning.

[0003] During hemodialysis, medical tape is typically used to adhere the needle to the patient's skin to ensure it remains in place within the blood vessel. However, this tape is prone to dislodgement due to sweating, and its removal after hemodialysis can cause pain for the patient. Therefore, we propose a safe indwelling device for hemodialysis to prevent needle dislodgement. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a safe indwelling device for preventing needle detachment in blood purification dialysis. This solves the technical problem that the current method of adhesive tape is prone to falling off due to the patient's sweat, and that the medical tape needs to be torn off after the blood dialysis is completed, which causes pain to the patient.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a safe indwelling device for preventing needle dislodgement in blood purification dialysis, comprising a placement plate and a protective mechanism and a positioning mechanism provided on the placement plate. The upper end surface of the placement plate is provided with an arc-shaped recess, and a cotton pad layer is provided in the recess. The protective mechanism includes a first protective shell and a second protective shell symmetrically and rotatably installed on the side end of the placement plate. Small holes are evenly distributed on the first and second protective shells. A connecting rod is installed on the inner wall of both the first and second protective shells. A limiting plate is installed at the end of the connecting rod. A rubber pad is provided at the lower end of the limiting plate. The positioning mechanism includes a positioning plate, and two sets of positioning plates are symmetrically distributed.

[0006] Preferably, both the first protective shell and the second protective shell are arc-shaped. The outer surface of the end of the first protective shell is provided with a locking block, and the outer surface of the end of the second protective shell is rotatably mounted with a buckle plate, which is snapped and fixed to the locking block.

[0007] Preferably, the upper end of the placement plate is provided with insertion holes, and the side end of the placement plate is provided with fixing holes communicating with the insertion holes. The positioning plate is inserted and installed in the insertion holes, and the positioning plate is provided with positioning holes corresponding to the fixing holes.

[0008] Preferably, the inner walls of both the first and second protective shells are equipped with fixing rods, the front part of the fixing rod is arc-shaped, the rear part of the fixing rod is vertical, and the size of the fixing rod is adapted to the size of the fixing hole.

[0009] Preferably, the positioning plate includes an installation part, a bending part, a first arc-shaped part, and a second arc-shaped part. The bending part is located at the end of the installation part and bends at a 90-degree angle. The first arc-shaped part is located at the end of the bending part and is arranged in an inward arc shape. The second arc-shaped part is located at the end of the first arc-shaped part and is arranged in an outward arc shape. The second arc-shaped part forms a hook structure at the end of the positioning plate.

[0010] Preferably, a first fixing strap and a second fixing strap are respectively attached to the positioning plate. The starting ends of the first fixing strap and the second fixing strap are provided with hook holes, and the outer surface of the first fixing strap and the lower end surface of the second fixing strap are provided with corresponding Velcro.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model designs a first fixing strap, a second fixing strap, a first protective shell, and a second protective shell. The first and second fixing straps can be used to fix the puncture needle and prevent it from falling off. In addition, the first and second protective shells can wrap the puncture site on the arm and the puncture needle to prevent the puncture needle from being touched, thereby improving the stability of hemodialysis and achieving the effect of preventing needle dislodgement. This solves the problem that the current method of adhesive tape is easy to fall off due to the patient's sweat, and the medical tape needs to be peeled off after hemodialysis, which causes pain to the patient.

[0013] 2. This utility model also designs a positioning plate structure. The mounting part of the positioning plate can be installed and fixed when the protective shells are connected. The first arc-shaped part of the positioning plate can be adapted to the shape of the concave upper end of the placement plate. The hook structure formed by the second arc-shaped part can be used to hang and fix the fixing strap. It is convenient to install and remove the first fixing strap and the second fixing strap, so that the two fixing straps can conveniently limit the puncture needle to prevent it from falling off and to release the limit. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present utility model;

[0015] Figure 2 This is a schematic diagram of one usage state of the present invention;

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 4 This is a schematic diagram of the positioning mechanism structure of this utility model;

[0018] Figure 5 This is a partial front view of the structure of this utility model.

[0019] The following are the labels in the diagram: 101, Placement plate; 102, Cotton padding layer; 103, Insertion hole; 104, Fixing hole; 200, Protective mechanism; 201, First protective shell; 202, Second protective shell; 203, Connecting rod; 204, Limiting plate; 205, Rubber pad; 206, Locking block; 207, Buckle plate; 208, Fixing rod; 300, Positioning mechanism; 301, Positioning plate; 3011, Mounting part; 3012, Bending part; 3013, First arc-shaped part; 3014, Second arc-shaped part; 302, First fixing strap; 303, Second fixing strap; 304, Hanging hole. Detailed Implementation

[0020] like Figures 1 to 5 As shown, this utility model relates to a safe indwelling device for blood purification dialysis to prevent needle dislodgement, including a placement plate 101 and a protective mechanism 200 and a positioning mechanism 300 provided on the placement plate 101. The upper end surface of the placement plate 101 is provided with an arc-shaped recess, and a cotton pad layer 102 is provided in the recess. The protective mechanism 200 includes a first protective shell 201 and a second protective shell 202 symmetrically rotated and installed on the side end of the placement plate 101. Small holes are evenly distributed on the first protective shell 201 and the second protective shell 202. A connecting rod 203 is installed on the inner wall of the first protective shell 201 and the second protective shell 202. A limiting plate 204 is installed at the end of the connecting rod 203. A rubber pad 205 is provided at the lower end of the limiting plate 204. The positioning mechanism 300 includes a positioning plate 301, and there are two sets of positioning plates 301 symmetrically distributed. This invention, through the combination of an inner limiting structure and an outer protective structure, not only prevents the puncture needle from falling out, but also protects the arm and the puncture site, further improving the stability of hemodialysis treatment.

[0021] Specifically, both the first protective shell 201 and the second protective shell 202 are arc-shaped. A locking block 206 is provided on the outer surface of the end of the first protective shell 201, and a snap-fit ​​plate 207 is rotatably mounted on the outer surface of the end of the second protective shell 202. The snap-fit ​​plate 207 is snapped and fixed onto the locking block 206. The snap-fit ​​plate 207 and the locking block 206 connect the first protective shell 201 and the second protective shell 202, allowing them to form a cover structure.

[0022] Furthermore, the upper end of the placement plate 101 is provided with insertion holes 103, and the side end of the placement plate 101 is provided with fixing holes 104 communicating with the insertion holes 103. The positioning plate 301 is inserted and installed in the insertion holes 103, and the positioning plate 301 is provided with positioning holes corresponding to the fixing holes 104. The insertion holes 103 are provided for the installation of the positioning plate 301, and the positioning holes and fixing holes 104 are provided for limiting and fixing the positioning plate 301.

[0023] It is worth noting that both the inner walls of the first protective shell 201 and the second protective shell 202 are equipped with fixing rods 208. The front part of the fixing rod 208 is arc-shaped, and the rear part is vertical. The size of the fixing rod 208 is adapted to the size of the fixing hole 104. When the first protective shell 201 and the second protective shell 202 rotate, the fixing rod 208 can be inserted into the fixing hole 104. When the first protective shell 201 and the second protective shell 202 are connected, the end of the fixing rod 208 can be inserted into the positioning hole of the positioning plate 301, thus completing the installation and fixation of the positioning plate 301.

[0024] It is worth mentioning that the positioning plate 301 includes an installation part 3011, a bending part 3012, a first arc-shaped part 3013, and a second arc-shaped part 3014. The bending part 3012 is located at the end of the installation part 3011 and is bent at a 90-degree angle. The first arc-shaped part 3013 is located at the end of the bending part 3012 and is arranged in an inward arc shape. The second arc-shaped part 3014 is located at the end of the first arc-shaped part 3013 and is arranged in an outward arc shape. The second arc-shaped part 3014 forms a hook structure at the end of the positioning plate 301. The mounting part 3011 of the positioning plate 301 can be installed and fixed when the protective shells are connected. The first arc-shaped part 3013 of the positioning plate 301 can be adapted to the concave shape of the upper end of the placement plate 101. The hook structure formed by the second arc-shaped part 3014 can be used to attach and fix the fixing strap. This facilitates the installation and removal of the first fixing strap 302 and the second fixing strap 303, making it convenient for the two fixing straps to limit and prevent the puncture needle from falling off, as well as to release the limit.

[0025] It is worth noting that a first fixing strap 302 and a second fixing strap 303 are respectively attached to the positioning plate 301. Both the first fixing strap 302 and the second fixing strap 303 have hook holes 304 at their beginning ends. Corresponding Velcro fasteners are provided on the outer surface of the first fixing strap 302 and the lower end surface of the second fixing strap 303. The Velcro fasteners are used to connect the first fixing strap 302 and the second fixing strap 303, and their lengths can be adjusted to fit different arm sizes.

[0026] Working Principle: This embodiment provides a safe indwelling device for preventing needle dislodgement during hemodialysis. In use, the patient's arm is placed on the cotton padding 102 at the upper end of the placement plate 101. After hemodialysis puncture, the positioning plate 301 is installed, limiting the first fixing strap 302 and the second fixing strap 303 to the upper end of the puncture needle. Then, the first protective shell 201 and the second protective shell 202 are manually rotated. During rotation, the fixing rod 208 can be inserted into the fixing hole 104 and the positioning hole of the positioning plate 301, thus fixing the positioning plate 301. The first fixing strap 302 and the second fixing strap 303... Under its function, it can prevent the puncture needle from falling out. The first protective shell 201 and the second protective shell 202 are rotatably connected to form a cover structure, which can wrap the puncture site and the puncture needle in the arm. The limiting plate 204 is used to limit the patient's arm, which can prevent the puncture needle from being touched and improve the stability of hemodialysis. After hemodialysis is completed, the buckle plate 207 is rotated to loosen the connection between the first protective shell 201 and the second protective shell 202. Rotating the protective shell can expose the patient's arm. Then the positioning plate 301 can be removed directly or the Velcro can be torn off to loosen the fixing strap, which can facilitate needle removal.

[0027] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A safe indwelling device for preventing needle dislodgement in blood purification dialysis, characterized in that, The device includes a placement plate (101) and a protective mechanism (200) and a positioning mechanism (300) provided on the placement plate (101). The upper surface of the placement plate (101) is provided with an arc-shaped recess, and a cotton pad layer (102) is provided in the recess. The protective mechanism (200) includes a first protective shell (201) and a second protective shell (202) symmetrically rotated and installed on the side end of the placement plate (101). Small holes are evenly distributed on the first protective shell (201) and the second protective shell (202). A connecting rod (203) is installed on the inner wall of both the first protective shell (201) and the second protective shell (202). A limiting plate (204) is installed at the end of the connecting rod (203). A rubber pad (205) is provided at the lower end of the limiting plate (204). The positioning mechanism (300) includes a positioning plate (301), and the positioning plate (301) is provided in two sets symmetrically distributed.

2. The safe indwelling device for preventing needle dislodgement in blood purification dialysis according to claim 1, characterized in that, Both the first protective shell (201) and the second protective shell (202) are arc-shaped. The outer surface of the end of the first protective shell (201) is provided with a locking block (206), and the outer surface of the end of the second protective shell (202) is rotatably mounted with a buckle plate (207), which is snapped and fixed on the locking block (206).

3. The safe indwelling device for preventing needle dislodgement in blood purification dialysis according to claim 2, characterized in that, The upper end of the placement plate (101) is provided with insertion holes (103), and the side end of the placement plate (101) is provided with fixing holes (104) communicating with the insertion holes (103). The positioning plate (301) is inserted and installed in the insertion holes (103), and the positioning plate (301) is provided with positioning holes corresponding to the fixing holes (104).

4. The safe indwelling device for preventing needle dislodgement in blood purification dialysis according to claim 3, characterized in that, The inner walls of the first protective shell (201) and the second protective shell (202) are both equipped with fixing rods (208). The front part of the fixing rod (208) is arc-shaped, and the rear part of the fixing rod (208) is vertical. The size of the fixing rod (208) is adapted to the size of the fixing hole (104).

5. A safe indwelling device for preventing needle dislodgement in blood purification dialysis according to claim 4, characterized in that, The positioning plate (301) includes an installation part (3011), a bending part (3012), a first arc-shaped part (3013), and a second arc-shaped part (3014). The bending part (3012) is located at the end of the installation part (3011) and bends at a 90-degree angle. The first arc-shaped part (3013) is located at the end of the bending part (3012) and is arc-shaped inward. The second arc-shaped part (3014) is located at the end of the first arc-shaped part (3013) and is arc-shaped outward. The second arc-shaped part (3014) forms a hook structure at the end of the positioning plate (301).

6. A safe indwelling device for preventing needle dislodgement in blood purification dialysis according to claim 5, characterized in that, The positioning plate (301) is respectively attached to a first fixing strap (302) and a second fixing strap (303). The first fixing strap (302) and the second fixing strap (303) are provided with a hanging hole (304) at their beginning ends. The outer surface of the first fixing strap (302) and the lower end surface of the second fixing strap (303) are provided with corresponding Velcro.

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