Fixing device for hemodialysis catheter

Abstract

The utility model discloses a fixing device for a hemodialysis catheter, and relates to the technical field of catheter fixing. The fixing device comprises a fixing sleeve, an air cushion is arranged on the inner wall of the fixing sleeve, a fixing plate and two binding pieces are arranged on the outer wall of the fixing sleeve, two S-shaped clamping grooves are formed in the upper side of the fixing plate, and anti-disengaging pieces corresponding to the S-shaped clamping grooves are arranged on one side of the fixing plate. The anti-falling piece comprises an arc-shaped clamping plate arranged on one side of the fixing plate, an arc-shaped cover plate is hinged to the upper portion of the arc-shaped clamping plate, a clamping base is arranged on the side portion of the arc-shaped cover plate, a rubber block is arranged on the inner wall of the arc-shaped cover plate, a stud is rotationally matched with the side portion of the arc-shaped clamping plate, a screw cylinder corresponding to the clamping base is matched with the upper portion of the stud in a threaded mode, and a rotary knob is arranged on the upper end face of the screw cylinder. The hemodialysis catheter is coiled in the fixing plate through the S-shaped clamping groove, the friction force between the hemodialysis catheter and the fixing plate is increased, the probability that the hemodialysis catheter is pulled is reduced, the turning position of the S-shaped clamping groove is in an arc shape, and the probability that the hemodialysis catheter is blocked due to bending is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of catheter fixation, and in particular relates to a fixing device for a hemodialysis catheter. Background Art

[0002] Hemodialysis 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 an electrolyte solution (dialysate) containing electrolytes at similar concentrations to the body are exchanged through diffusion / convection inside and outside the hollow fibers to remove metabolic waste from the body, maintain electrolyte and acid-base balance, and remove excess water from the body. The entire process of returning the purified blood is called hemodialysis.

[0003] Chinese patent publication number CN211272727U discloses a fixing device for a hemodialysis catheter, comprising a first fixing head and a second fixing head at the front end of the first fixing head, a restraining belt being provided between both ends of the first fixing head and the second fixing head, and an adjusting tube clamp being provided on the second fixing head.

[0004] The hemodialysis catheter fixing device disclosed in the application fixes the hemodialysis catheter by clamping it on a fixed tube clamp and an adjustable tube clamp during use. However, the surface of the hemodialysis catheter is usually smooth and easily pulled and displaced. Therefore, it is difficult to effectively fix the hemodialysis catheter by relying solely on the fixed tube clamp and the adjustable tube clamp. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a fixing device for a hemodialysis catheter.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A fixing device for a hemodialysis catheter comprises a fixing sleeve, an air cushion being installed on the inner wall of the fixing sleeve, a fixing plate and two binding pieces being installed on the outer wall, the fixing plate being located between the two binding pieces, two S-shaped slots being provided on the upper side of the fixing plate, the two ends of the S-shaped slots respectively passing through the two sides of the fixing plate, and an anti-slip piece corresponding to the S-shaped slots being installed on one side of the fixing plate;

[0008] The anti-slip part includes an arc-shaped clamping plate installed on one side of the fixed plate, an arc-shaped cover plate is hinged on the upper part of the arc-shaped clamping plate, a clamping seat is provided on the side of the arc-shaped cover plate, and a rubber block is installed on the inner wall. The side of the arc-shaped clamping plate is rotatably engaged with a stud, and the upper part of the stud is threadedly engaged with a screw barrel corresponding to the clamping seat, and a knob is provided on the upper end face of the screw barrel.

[0009] Optionally, the fixing sleeve includes an arc plate installed between the air cushion and the fixing plate, and two straps are connected to both sides of the arc plate, one side of two straps are provided with a Velcro hook surface, and one side of the other two straps are provided with a Velcro fleece surface. The Velcro hook surface and the Velcro fleece surface cooperate with each other, so that the arc plate can be conveniently tied to the patient's thigh or arm using the straps.

[0010] Optionally, the binding part includes two protrusions installed on the outer wall of the arc plate, and a connecting column is provided between the two protrusions. Through the cooperation of the protrusions and the connecting column, the fixing sleeve can be tied to the bed with the help of a rope, thereby reducing the probability of the patient's large-scale movement or turning over causing pulling on the hemodialysis catheter.

[0011] Optionally, a first slot is provided on one side of the arc plate, the first slot vertically passes through the arc plate, the fixing plate is located between the first slot and the anti-slip component, and a second slot corresponding to the first slot is provided on one side of the air cushion, the second slot vertically passes through the air cushion, and the hemodialysis catheter can pass through the second slot and the first slot when the fixing sleeve is tied.

[0012] Optionally, an inflation and deflation air pipe is connected to the side of the air cushion, and a valve core is provided at the end of the inflation and deflation air pipe. The air cushion can be inflated or the air in the air cushion can be controlled to be discharged through the valve core with the help of an inflation device.

[0013] Optionally, a swivel seat is provided on the side of the arc-shaped clamping plate, a swivel groove is provided on the side of the swivel seat, the swivel groove vertically passes through the swivel seat, and swivel holes connected to the swivel groove are provided on both sides of the swivel seat. A rotating shaft is welded on the lower part of the stud, and both ends of the rotating shaft are respectively rotatably engaged in the corresponding rotating holes. The cooperation between the rotating hole and the rotating shaft improves the stability of the stud during rotation.

[0014] Optionally, a slot corresponding to the stud is provided on the side of the base, the slot vertically passes through the base, the stud vertically passes through the slot, and a slot connected to the slot is provided on the upper side of the base. The lower part of the screw barrel is clamped in the slot, and the screw barrel cooperates with the slot to improve the firmness of the arc cover when it is fixed.

[0015] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described below at the same time:

[0016] The hemodialysis catheter disc is placed in the fixing plate through the S-shaped slot, which increases the friction between the hemodialysis catheter and the fixing plate and reduces the probability of the hemodialysis catheter being pulled. The turning part of the S-shaped slot is arc-shaped, which reduces the probability of the hemodialysis catheter being blocked due to bending. The stud, screw barrel and knob are combined to facilitate the fixation of the arc-shaped cover plate, so that the rubber block limits and squeezes the hemodialysis catheter, reducing the probability of the hemodialysis catheter being pulled out of the S-shaped slot due to force.

[0017] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0019] In the picture:

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the fixing sleeve and the binding member according to one embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the air cushion structure of an embodiment of the present utility model;

[0023] Figure 4 This is a schematic diagram of the fixed plate structure of an embodiment of the present utility model;

[0024] Figure 5 This is a schematic structural diagram of the unfolding effect of the anti-slip component in one embodiment of the present invention.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] Fixed sleeve 1, arc plate 101, first notch 102, strap 103, Velcro hook surface 104, Velcro fleece surface 105, air cushion 2, second notch 201, inflation and deflation tube 202, valve core 203, fixed plate 3, S-shaped slot 301, binding piece 4, protrusion 401, connecting column 402, arc-shaped card plate 5, arc-shaped cover plate 501, swivel seat 502, card seat 503, rubber block 504, stud 6, rotating shaft 601, knob 7, screw barrel 701.

[0027] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] See also Figure 1-5As shown, in this embodiment, a fixing device for a hemodialysis catheter is provided, comprising a fixing sleeve 1, an air cushion 2 being installed on the inner wall of the fixing sleeve 1, a fixing plate 3 and two binding pieces 4 being installed on the outer wall, the fixing plate 3 being located between the two binding pieces 4, two S-shaped slots 301 being provided on the upper side of the fixing plate 3, the two ends of the S-shaped slots 301 respectively passing through the two sides of the fixing plate 3, the bottom of the fixing plate 3 being made of a hollow material, thereby reducing the overall weight of the fixing device and saving production costs, an anti-slip piece corresponding to the S-shaped slot 301 being installed on one side of the fixing plate 3, the upper opening width of the S-shaped slot 301 being slightly smaller than the diameter of the hemodialysis catheter, thereby facilitating the hemodialysis catheter to be squeezed into the S-shaped slot 301, and the turning point of the S-shaped slot 301 being a semicircular arc structure;

[0030] The anti-slip component includes an arc-shaped clamping plate 5 installed on one side of the fixed plate 3, the arc-shaped clamping plate 5 corresponds to the S-shaped clamping groove 301, and an arc-shaped cover plate 501 is hinged on the upper part of the arc-shaped clamping plate 5. The arc-shaped clamping plate 5 is a superior arc, and the arc-shaped cover plate 501 is an inferior arc. A clamping seat 503 is provided on the side of the arc-shaped cover plate 501, and a rubber block 504 is installed on the inner wall. The side of the arc-shaped clamping plate 5 is rotatably engaged with a stud 6, and the upper part of the stud 6 is threadedly engaged with a screw barrel 701 corresponding to the clamping seat 503, and a knob 7 is provided on the upper end face of the screw barrel 701.

[0031] One aspect of the application of this embodiment is as follows: when in use, the fixing sleeve 1 is fixed on the patient's thigh or arm, and then the hemodialysis catheter is squeezed into the S-shaped slot 301, and the hemodialysis catheter is arranged along the S-shaped slot 301, and finally inserted into the arc-shaped card plate 5. At this time, the arc-shaped cover plate 501 is rotated to cover the arc-shaped card plate 5, and the stud 6 is first rotated to insert from the side of the card seat 503, and then the knob 7 is turned to drive the screw barrel 701 to rotate, so that the screw barrel 701 rotates and moves down to be inserted into the card seat 503 for fixation, and the rubber block 504 is used to resist the hemodialysis catheter.

[0032] The fixing sleeve 1 of this embodiment includes an arc plate 101 installed between the air cushion 2 and the fixing plate 3, and two straps 103 are respectively connected to the two sides of the arc plate 101, wherein one side of the two straps 103 is provided with a Velcro hook surface 104, and one side of the other two straps 103 is provided with a Velcro fleece surface 105. When in use, the arc plate 101 is attached to the skin of the patient's thigh or arm using the air cushion 2, and then the Velcro hook surface 104 and the Velcro fleece surface 105 are adhered to each other to use the strap 103 to tie the arc plate 101 to the patient's thigh or arm. The Velcro hook surface 104 and the Velcro fleece surface 105 cooperate with each other, making it easy to tie the arc plate 101 to the patient's thigh or arm using the strap 103.

[0033] The binding piece 4 of this embodiment includes two protrusions 401 installed on the outer wall of the arc plate 101, and a connecting column 402 is provided between the two protrusions 401. For patients who are prone to movement, ropes, cloth belts or elastic bands can be used to bind them to the connecting column 402, and then tied to the bed, so that the fixing sleeve 1 can move slightly. Through the cooperation between the protrusions 401 and the connecting column 402, it is convenient to use the rope to bind the fixing sleeve 1 to the bed, thereby reducing the probability of the patient's large-scale movement or turning over causing pulling on the hemodialysis catheter.

[0034] A first notch 102 is provided on one side of the arc plate 101 of this embodiment, and the first notch 102 vertically penetrates the arc plate 101. The fixing plate 3 is located between the first notch 102 and the anti-slip component. A second notch 201 corresponding to the first notch 102 is provided on one side of the air cushion 2, and the second notch 201 vertically penetrates the air cushion 2. Through the first notch 102, when bundling the fixing sleeve 1, the hemodialysis catheter can pass through the second notch 201 and the first notch 102, thereby reducing the influence of the wound on the bundling position of the fixing sleeve 1 and reducing the reserved length of the hemodialysis catheter between the wound and the fixing sleeve 1.

[0035] The air cushion 2 of this embodiment is connected to an inflation and discharge air tube 202 on the side, and a valve core 203 is provided at the end of the inflation and discharge air tube 202. The valve core 203 can be used to inflate the air cushion 2 or control the discharge of air in the air cushion 2 with the help of an inflation device. Before use, a certain amount of air should be retained in the air cushion 2, and then the fixing sleeve 1 is tied to the patient's thigh or arm, which is conducive to the air cushion 2 fitting the patient's skin and improving the comfort of wearing the fixing sleeve 1. For positions that are inconvenient to tie, there may be a loose binding. After bundling, air is inflated into the air cushion 2 to make it expand, thereby tightening the strap 103.

[0036] The arc-shaped clamping plate 5 of this embodiment is provided with a swivel seat 502 on the side, and a swivel groove is provided on the side of the swivel seat 502. The swivel groove vertically passes through the swivel seat 502, and swivel holes connected to the swivel groove are provided on both sides of the swivel seat 502. A rotating shaft 601 is welded to the lower part of the stud 6, and the two ends of the rotating shaft 601 are respectively rotatably engaged in the corresponding rotating holes. The cooperation between the rotating hole and the rotating shaft 601 improves the stability of the stud 6 during rotation and reduces the probability of the stud 6 detaching from the arc-shaped clamping plate 5.

[0037] In this embodiment, a slot corresponding to the stud 6 is provided on the side of the base 503. The slot vertically passes through the base 503, and the stud 6 vertically passes through the slot. A slot connected to the slot is provided on the upper side of the base 503. The lower part of the screw barrel 701 is clamped in the slot. The screw barrel 701 cooperates with the slot to improve the firmness of the arc cover 501 when it is fixed, and reduce the probability of the stud 6 rotating out of the slot due to slight loosening of the screw barrel 701.

[0038] The present invention is not limited to the above-described embodiments. Any structural changes made under the guidance of the present invention should be understood by anyone. Any technical solution that is the same or similar to the present invention falls within the scope of protection of the present invention. The technology, shape, and structure not described in detail in the present invention are all known technologies.

Claims

1. A fixing device for a hemodialysis catheter, characterized in that: include: A fixing sleeve (1), wherein the inner wall of the fixing sleeve (1) is provided with an air cushion (2), the outer wall of the fixing sleeve (1) is provided with a fixing plate (3) and two binding members (4), the upper side of the fixing plate (3) is provided with two S-shaped slots (301), and one side of the fixing plate (3) is provided with an anti-slip member corresponding to the S-shaped slots (301); The anti-slip component comprises an arc-shaped clamping plate (5) mounted on one side of the fixing plate (3); an arc-shaped cover plate (501) is hingedly connected to the upper portion of the arc-shaped clamping plate (5); a clamping seat (503) is provided on the side of the arc-shaped cover plate (501); a rubber block (504) is mounted on the inner wall; a stud (6) is rotatably engaged with the side of the arc-shaped clamping plate (5); a screw barrel (701) corresponding to the clamping seat (503) is threadedly engaged on the upper portion of the stud (6); and a knob (7) is provided on the upper end surface of the screw barrel (701).

2. A fixing device for a hemodialysis catheter according to claim 1, characterized in that: The fixing sleeve (1) comprises an arc plate (101) installed between the air cushion (2) and the fixing plate (3), and two straps (103) are respectively connected to both sides of the arc plate (101), wherein one side of the two straps (103) is provided with a Velcro hook surface (104), and one side of the other two straps (103) is provided with a Velcro fleece surface (105).

3. A fixing device for a hemodialysis catheter according to claim 2, characterized in that: The binding member (4) comprises two protrusions (401) mounted on the outer wall of the arc plate (101), and a connecting column (402) is provided between the two protrusions (401).

4. The fixing device for a hemodialysis catheter according to claim 2, characterized in that: A first notch (102) is provided on one side of the arc plate (101), the fixing plate (3) is located between the first notch (102) and the anti-slip component, and a second notch (201) corresponding to the first notch (102) is provided on one side of the air cushion (2).

5. The fixing device for a hemodialysis catheter according to claim 1, characterized in that: The side of the air cushion (2) is connected to an air charging and discharging pipe (202), and the end of the air charging and discharging pipe (202) is provided with an air valve core (203).

6. The fixing device for a hemodialysis catheter according to claim 1, characterized in that: A rotating seat (502) is provided on the side of the arc-shaped clamping plate (5), a rotating groove is provided on the side of the rotating seat (502), and rotating holes connected to the rotating groove are provided on both sides of the rotating seat (502). A rotating shaft (601) is welded to the lower part of the stud (6), and both ends of the rotating shaft (601) are respectively rotatably fitted in the corresponding rotating holes.

7. The fixing device for a hemodialysis catheter according to claim 1, characterized in that: A slot corresponding to the stud (6) is provided on the side of the card base (503), and a slot communicating with the slot is provided on the upper side of the card base (503), and the lower part of the screw barrel (701) is clamped in the slot.

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