Hemodialysis catheter fixing device

Abstract

The utility model discloses a hemodialysis catheter fixing device which comprises a C-shaped block, a clamping mechanism is arranged on the C-shaped block, a first semicircular fixing block is fixedly arranged on the C-shaped block, a second semicircular fixing block is hinged to the first semicircular fixing block, and a fixing mechanism is arranged between the first semicircular fixing block and the second semicircular fixing block. A limiting mechanism is arranged between the first semicircular fixing block and the second semicircular fixing block. According to the hemodialysis catheter fixing device, the whole device can be fixed to a sickbed through the arranged clamping mechanism, catheters of different sizes can be fixed through the arranged fixing mechanism and the arranged limiting mechanism, and use is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of hemodialysis auxiliary devices, in particular to a hemodialysis catheter fixing device. Background Art

[0002] Hemodialysis is the full name of hemodialysis. It is one of the renal replacement therapies for patients with acute and chronic renal failure. It drains blood from the body to the outside of the body through a dialyzer composed of countless hollow fibers. The blood and the electrolyte solution (dialysate) containing similar concentrations to the body are exchanged inside and outside the hollow fibers through diffusion, ultrafiltration, adsorption and convection principles to remove metabolic waste from the body and maintain electrolyte and acid-base balance. The catheter is one of the indispensable medical devices in hemodialysis operations. In order to prevent the hemodialysis catheter from slipping off the patient, medical staff generally use a fixing device to fix the hemodialysis catheter. Existing fixing devices are inconvenient to fix catheters of different sizes. The sizes of catheters used by different patients during hemodialysis are often different. The fixing device is easy to squeeze the catheter when fixing a larger catheter, and the fixing device cannot firmly fix the smaller catheter. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a hemodialysis catheter fixing device, the purpose of which is to solve the problem that the existing fixing devices are inconvenient to fix catheters of different sizes, the sizes of catheters used by different patients during hemodialysis are often different, and the fixing device is prone to squeezing the catheter when fixing a larger catheter, while the fixing device cannot firmly fix a smaller catheter.

[0004] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is:

[0005] A hemodialysis catheter fixing device comprises a C-shaped block, a clamping mechanism is provided on the C-shaped block, a semicircular fixing block 1 is fixedly provided on the C-shaped block, a semicircular fixing block 2 is hinged on the semicircular fixing block 1, a fixing mechanism is provided between the semicircular fixing block 1 and the semicircular fixing block 2, and a limiting mechanism is provided between the semicircular fixing block 1 and the semicircular fixing block 2.

[0006] Furthermore, the clamping mechanism includes a screw rod threadedly connected to the C-shaped block, one end of the screw rod is rotatably connected to a fixing plate, and one end of the screw rod away from the fixing plate is provided with a hand wheel.

[0007] Furthermore, the fixing mechanisms are distributed in a circular array.

[0008] Furthermore, the fixing mechanism includes a first spring fixedly connected to the semicircular fixing block 1 and the semicircular fixing block 2, and an arc-shaped plate is provided at one end of the first spring away from the semicircular fixing block 1 and the semicircular fixing block 2.

[0009] Furthermore, the limiting mechanism includes a groove opened on the semicircular fixing block 1, a second spring is provided at the bottom of the groove, a clamping block is provided on the semicircular fixing block 2, a limiting hole is provided on the clamping block, and a limiting assembly is provided on the semicircular fixing block 1.

[0010] Furthermore, the limit assembly includes an installation groove opened on a semicircular fixed block, a limit rod is slidably connected to the installation groove, a limit plate is provided on the limit rod, a third spring is provided between the limit plate and the installation groove, and a pull plate is provided at one end of the limit rod.

[0011] Furthermore, one end of the limiting rod away from the pulling plate is inserted into the limiting hole.

[0012] The beneficial effects of the utility model are:

[0013] The utility model provides a hemodialysis catheter fixing device. The entire device can be fixed on a hospital bed through a clamping mechanism. The fixing mechanism and the limiting mechanism can fix catheters of different sizes. The device is simple and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 Enlarged structural diagram at A in the middle.

[0016] Reference table of reference numerals:

[0017] 1. C-shaped block; 2. Semicircular fixing block 1; 3. Semicircular fixing block 2; 4. Screw; 5. Fixing plate; 6. Handwheel; 7. First spring; 8. Arc plate; 9. Groove; 10. Second spring; 11. Block; 12. Limit hole; 13. Mounting slot; 14. Limit rod; 15. Limit plate; 16. Third spring; 17. Pull plate. DETAILED DESCRIPTION

[0018] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

[0019] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0020] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0021] like Figure 1 to Figure 2 As shown, a hemodialysis catheter fixing device comprises a C-shaped block 1, on which a clamping mechanism is provided, the clamping mechanism comprises a screw rod 4 threadedly connected to the C-shaped block 1, one end of the screw rod 4 is rotatably connected to a fixing plate 5, and one end of the screw rod 4 away from the fixing plate 5 is provided with a hand wheel 6, through the provided clamping mechanism, the C-shaped block 1 is clamped on the bed, and the hand wheel 6 is turned, the hand wheel 6 drives the screw rod 4 to rotate, and the screw 4 drives the fixing plate 5 to move, so that the whole device is fixed on the bed.

[0022] A semicircular fixing block 2 is fixedly provided on the C-shaped block 1, a semicircular fixing block 2 3 is hingedly provided on the semicircular fixing block 2, a fixing mechanism is provided between the semicircular fixing block 2 and the semicircular fixing block 2 3, the fixing mechanism is distributed in a circular array, the fixing mechanism includes a first spring 7 fixedly connected to the semicircular fixing block 2 and the semicircular fixing block 2 3, an arc plate 8 is provided at one end of the first spring 7 away from the semicircular fixing block 2 and the semicircular fixing block 2 3, and the arc plate 8 can fix catheters of different sizes through the provided fixing mechanism.

[0023] A limiting mechanism is provided between the semicircular fixing block 1 2 and the semicircular fixing block 2 3, the limiting mechanism includes a groove 9 opened on the semicircular fixing block 1 2, a second spring 10 is provided at the bottom of the groove 9, a clamping block 11 is provided on the semicircular fixing block 2 3, a limiting hole 12 is provided on the clamping block 11, a limiting assembly is provided on the semicircular fixing block 1 2, the limiting assembly includes a mounting groove 13 opened on the semicircular fixing block 1 2, a limiting rod 14 is slidably connected to the mounting groove 13, a limiting plate 15 is provided on the limiting rod 14, a third spring 16 is provided between the limiting plate 15 and the mounting groove 13, a pull plate 17 is provided at one end of the limiting rod 14, and the end of the limiting rod 14 away from the pull plate 17 is inserted into the limiting hole 12.

[0024] Through the setting of the limiting mechanism, the card block 11 is stuck in the groove 9, and the limiting rod 14 is stuck in the limiting hole 12, so the catheter is fixed. The pull plate 17 is pulled, and the limiting rod 14 is disengaged from the limiting hole 12. The second spring 10 pops out the semicircular fixing block 2 3, and the semicircular fixing block 1 2 and the semicircular fixing block 2 3 are opened, so that the catheter can be easily taken out.

[0025] The above description is only a preferred embodiment of the present utility model patent and is not intended to limit the present utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model patent shall be included in the protection scope of the present utility model patent.

Claims

1. A hemodialysis catheter fixing device, characterized in that: The invention comprises a C-shaped block (1), wherein a clamping mechanism is provided on the C-shaped block (1), a semicircular fixing block 1 (2) is fixedly provided on the C-shaped block (1), a semicircular fixing block 2 (3) is hingedly connected to the semicircular fixing block 1 (2), a fixing mechanism is provided between the semicircular fixing block 1 (2) and the semicircular fixing block 2 (3), and a limiting mechanism is provided between the semicircular fixing block 1 (2) and the semicircular fixing block 2 (3); The fixing mechanism comprises a first spring (7) fixedly connected to the semicircular fixing block 1 (2) and the semicircular fixing block 2 (3); an arc-shaped plate (8) is provided at one end of the first spring (7) away from the semicircular fixing block 1 (2) and the semicircular fixing block 2 (3); The limiting mechanism comprises a groove (9) formed on the semicircular fixing block (2), a second spring (10) being provided at the bottom of the groove (9), a clamping block (11) being provided on the semicircular fixing block (3), a limiting hole (12) being provided on the clamping block (11), and a limiting assembly being provided on the semicircular fixing block (2).

2. A hemodialysis catheter fixing device according to claim 1, characterized in that: The clamping mechanism comprises a screw rod (4) threadedly connected to the C-shaped block (1); one end of the screw rod (4) is rotatably connected to a fixing plate (5); and one end of the screw rod (4) away from the fixing plate (5) is provided with a hand wheel (6).

3. The hemodialysis catheter fixing device according to claim 1, characterized in that: The fixing mechanisms are distributed in a circular array.

4. The hemodialysis catheter fixing device according to claim 1, characterized in that: The limiting assembly comprises a mounting groove (13) provided on a semicircular fixing block (2); a limiting rod (14) is slidably connected to the mounting groove (13); a limiting plate (15) is provided on the limiting rod (14); a third spring (16) is provided between the limiting plate (15) and the mounting groove (13); and a pulling plate (17) is provided at one end of the limiting rod (14).

5. A hemodialysis catheter fixing device according to claim 4, characterized in that: One end of the limiting rod (14) away from the pulling plate (17) is inserted into the limiting hole (12).

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