Arm fixing device for hemodialysis

Abstract

The utility model discloses an arm fixing device for hemodialysis, which relates to the technical field of hemodialysis and comprises a connecting component, an adjusting component and a limiting mechanism. The connecting assembly comprises a connecting bottom plate, a clamping piece and a locking piece; the adjusting assembly comprises an adjusting rod, a supporting plate and a positioning rod; a lifting rod is movably arranged in the adjusting rod, an adjusting sleeve is arranged on the adjusting rod, and the adjusting sleeve is in threaded connection with the lifting rod; the limiting mechanism comprises a supporting bracket, a binding belt and a limiting sleeve; a notch is formed in the supporting bracket, one end of the binding belt is fixedly connected with the supporting bracket, and the other end of the binding belt penetrates through the notch and is detachably connected with the supporting bracket; a limiting piece is arranged on the supporting bracket; by arranging the adjusting rod, the height between the connecting bottom plate and the supporting plate can be adjusted, so that the height of the supporting bracket is adjusted, use is more flexible, the arm of a patient is bound in the supporting bracket under the constraint of the limiting sleeve and the binding belt, and the situation that the puncture needle is pulled to fall off due to the fact that the arm of the patient moves is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hemodialysis, in particular to an arm fixing device for hemodialysis. Background Art

[0002] Before patients enter dialysis treatment, vascular access needs to be established. Currently, the vascular access that can be used for dialysis treatment includes: autologous arteriovenous fistula, artificial blood vessels, hemodialysis catheters, etc. Autologous arteriovenous fistula is more commonly used in clinical practice, and puncture is performed on the patient's arm. During dialysis treatment, in order to ensure the adequacy of the patient's dialysis treatment, the treatment time is set to 4 hours. During this period, the patient's puncture-side arm should be kept as still as possible on the bed, and try to keep it still to avoid moving and pulling the extracorporeal circulation line, resulting in displacement of the puncture needle, dislocation, bleeding and swelling at the puncture site, etc., which will cause bruising, swelling, pain, etc. at the arteriovenous fistula site, affecting the next puncture, thereby affecting the patient's dialysis treatment, and failing to ensure the adequacy of the patient's dialysis, which may cause the patient to develop severe complications such as hyperkalemia, heart failure, pericardial effusion, and uremic encephalopathy. Especially for critically ill patients, when uremic encephalopathy causes convulsions, mental abnormalities and inability to cooperate with treatment, puncture is extremely difficult. After the puncture is successful, the limb on the punctured side cannot be effectively fixed during the treatment, which makes it more likely to cause the puncture needle to come out, bleeding and swelling at the puncture site, and the patient cannot receive effective treatment.

[0003] The utility model patent with patent number CN218685667U discloses an arm fixing bracket for hemodialysis, which is connected to the bed body by a chuck and a socket, and the height of the bracket is adjusted by using a sleeve in combination with a fixing piece and a through hole to adapt to different support heights. The affected limb is fixed by a fixing belt in combination with a bracket. In this patent, the limb on the puncture side of the patient can be fixed to prevent the patient's arm from moving and causing the puncture needle to shift or fall off; but in use, the support height of the bracket is limited by the height of the through hole, and it is difficult to adjust the support height arbitrarily, and the use is limited. At the same time, when the affected limb is fixed by the fixing belt in combination with the bracket, only the upper arm of the patient can be restricted from moving up and down. When the patient's arm moves in the radial direction of the bracket (and when the patient pulls the arm toward the side of the body), due to the decreasing outer diameter of the arm, the patient's arm is easily separated from the bracket, causing the puncture needle to be pulled, displaced or fall off. Utility Model Content

[0004] The main purpose of the utility model is to provide an arm fixing device for hemodialysis, which is used to solve the problems that the existing arm fixing bracket for hemodialysis is difficult to adjust the height at will and the patient is prone to pull the puncture needle when pulling the arm toward the side of the body, causing the puncture needle to shift or fall off.

[0005] To achieve the above object, the utility model provides an arm fixing device for hemodialysis, comprising:

[0006] The connection assembly comprises a connection base plate and a clamping member arranged on the connection base plate; a locking member is arranged in the clamping member;

[0007] The adjustment assembly comprises an adjustment rod arranged on a connecting bottom plate and a support plate arranged on the adjustment rod; a retractable positioning rod is arranged between the support plate and the connecting bottom plate; a lifting rod is movably arranged in the adjustment rod, and an adjustment sleeve is arranged on the adjustment rod; the adjustment sleeve is threadedly connected to the lifting rod; the adjustment sleeve rotates under the action of an external force to move the lifting rod up or down;

[0008] The limiting mechanism comprises a supporting bracket arranged on the supporting plate, a restraining belt arranged on the supporting bracket, and a limiting sleeve movably arranged on the supporting bracket; the supporting bracket is provided with a notch; one end of the restraining belt is fixedly connected to the supporting bracket, and the other end passes through the notch and is detachably connected to the supporting bracket; the supporting bracket is provided with a limiting member; the limiting member rotates under the action of an external force and abuts against the limiting sleeve, thereby fixing the position of the limiting sleeve relative to the supporting bracket.

[0009] As a further improvement of the utility model, the clamping member includes a clamping plate; a clamping groove is provided in the clamping plate; the locking member includes a locking rod and a locking plate arranged in the clamping groove; the locking rod penetrates the clamping plate through a thread and is rotatably connected to the locking plate.

[0010] As a further improvement of the utility model, a mounting cavity is provided in the adjusting rod; the lifting rod is slidably arranged in the mounting cavity; and the adjusting sleeve is rotatably mounted on the end of the adjusting rod.

[0011] As a further improvement of the utility model, a slideway is provided on the supporting bracket; a slide plate which slides in the slideway is provided on the limiting sleeve; the limiting member comprises a limiting screw; one end of the limiting screw passes through the slideway through a thread and abuts against the slide plate.

[0012] As a further improvement of the utility model, a cotton sleeve is provided inside the limiting sleeve; and a supporting groove is provided inside the cotton sleeve.

[0013] As a further improvement of the utility model, a connecting head is provided on the support plate; a hinge sleeve rotatably connected to the connecting head is provided at the bottom end of the support bracket; and a locking stud is provided on the hinge sleeve.

[0014] The beneficial effects of the utility model are embodied in:

[0015] By setting an adjusting rod, the height between the connecting bottom plate and the supporting plate can be adjusted, thereby adjusting the height of the supporting bracket, which makes the use more flexible. Under the restraint of the limiting sleeve and the restraint belt, the patient's arm can be restrained in the supporting bracket to prevent the puncture needle from being pulled off due to the movement of the patient's arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an arm fixing device for hemodialysis according to the utility model;

[0017] Figure 2 This is a schematic diagram of the connection base structure of a hemodialysis arm fixing device of the utility model;

[0018] Figure 3 This is a schematic diagram of the support bracket structure of an arm fixing device for hemodialysis according to the utility model;

[0019] Description of reference numerals:

[0020] 1. Connecting base plate; 2. Clamping piece; 201. Clamping plate; 202. Clamping groove; 3. Locking piece; 301. Locking rod; 302. Locking plate; 4. Adjusting rod; 5. Support plate; 6. Positioning rod; 7. Lifting rod; 8. Adjusting sleeve; 9. Support bracket; 10. Restraint belt; 11. Limiting sleeve; 12. Notch; 13. Limiting piece; 14. Slide; 15. Slide plate; 16. Cotton sleeve; 17. Support groove; 18. Connector; 19. Articulated sleeve; 20. Locking stud. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] In one embodiment, see Figure 1 The utility model discloses an arm fixing device for hemodialysis, which comprises a connecting component, an adjusting component and a limiting mechanism.

[0023] The connecting assembly includes a connecting base plate 1, a clamping member 2 arranged on the connecting base plate 1, and a locking member 3 is arranged in the clamping member 2; the adjusting assembly includes an adjusting rod 4 arranged on the connecting base plate 1, a supporting plate 5 arranged on the adjusting rod 4, and a retractable positioning rod 6 is arranged between the supporting plate 5 and the connecting base plate 1; a lifting rod 7 is movably arranged in the adjusting rod 4, and an adjusting sleeve 8 is arranged on the adjusting rod 4, and the adjusting sleeve 8 is threadedly connected to the lifting rod 7, and the adjusting sleeve 8 rotates under the action of an external force to move the lifting rod 7 up or down; The limiting mechanism includes a support bracket 9 arranged on the support plate 5, a restraining belt 10 arranged on the support bracket 9, and a limiting sleeve 11 movably arranged on the support bracket 9; a notch 12 is provided on the support bracket 9, one end of the restraining belt 10 is fixedly connected to the support bracket 9, and the other end passes through the notch 12 and is detachably connected to the support bracket 9; a limiting member 13 is provided on the support bracket 9, and the limiting member 13 rotates under the action of external force and abuts against the limiting sleeve 11, thereby fixing the position of the limiting sleeve 11 relative to the support bracket 9.

[0024] For further information, see Figure 2 The clamping member 2 includes a clamping plate 201, and a clamping groove 202 is provided in the clamping plate 201; the locking member 3 includes a locking rod 301 and a locking plate 302 arranged in the clamping groove 202, and the locking rod 301 penetrates the clamping plate 201 through a thread and is rotatably connected to the locking plate 302.

[0025] Preferably, the clamping plate 201 is a "U"-shaped structure, a screw hole is provided on the clamping plate 201, and the locking rod 301 is a screw rod.

[0026] Preferably, a rotating sleeve is provided on the locking plate 302, and one end of the locking rod 301 is rotatably connected to the rotating sleeve.

[0027] In the above arrangement, the clamping plate 201 is clamped on the bed edge through the clamping groove 202, and the locking rod 301 is rotated to drive the locking plate 302 to move toward the bed edge under the action of the thread, so that the locking plate 302 abuts against the bed edge and the clamping plate 201 is clamped and fixed on the bed edge.

[0028] For further information, see Figure 1 The adjusting rod 4 is provided with an installation cavity, and the lifting rod 7 is slidably arranged in the installation cavity; the adjusting sleeve 8 is rotatably installed on the end of the adjusting rod 4.

[0029] Preferably, the adjusting rod 4 is a hollow cylinder, the hollow interior of the adjusting rod 4 forms a mounting cavity, and one end of the adjusting rod 4 is fixedly connected to the connecting base plate 1 .

[0030] Preferably, an internal thread is provided on the inner wall of the adjusting sleeve 8, and an external thread is provided on the outer wall of the lifting rod 7.

[0031] In the above arrangement, the lifting rod 7 is driven upward or downward by rotating the adjusting sleeve 8 under the action of the thread, thereby adjusting the height of the supporting plate 5 and further adjusting the height of the supporting bracket 9 .

[0032] For further information, see Figure 3 The support bracket 9 is provided with a slideway 14; the limiting sleeve 11 is provided with a slide plate 15 slidingly located in the slideway 14; the limiting member 13 includes a limiting screw, one end of the limiting screw passes through the slideway through a thread and abuts against the slide plate 15.

[0033] Preferably, the supporting bracket 9 and the limiting sleeve 11 are both hollow cylinders with openings at both ends, which are formed by cutting off one third of the cylinder along the axis.

[0034] Preferably, the restraining belt 10 and the supporting bracket 9 are connected by Velcro.

[0035] For further information, see Figure 3 A cotton sleeve 16 is provided in the limiting sleeve 11 , and a supporting groove 17 is provided in the cotton sleeve 16 .

[0036] Preferably, the outer wall of the cotton sleeve 16 is wrapped with leather.

[0037] In the above arrangement, the patient's arm is placed in the support bracket 9, and one end of the restraint belt 10 is passed through the slot 12 and connected to the support bracket 9 by Velcro. The restraint belt 10 is wrapped and restrained on the patient's arm, thereby connecting the patient's arm to the support bracket 9 to prevent the patient's arm from moving up, down, left and right; the patient's elbow is partially located in the limiting sleeve 11, and the position of the limiting sleeve 11 is adjusted so that the limiting sleeve 11 abuts against the back of the patient's elbow, and the position is fixed by the limiting member 13, thereby limiting the patient's arm from moving radially along the support bracket 9, thereby preventing the movement of the patient's arm from pulling the puncture needle.

[0038] For further information, see Figure 2 \3. A connecting head 18 is provided on the supporting plate 5, and a hinge sleeve 19 rotatably connected to the connecting head 18 is provided at the bottom end of the supporting bracket 9, and a locking stud 20 is provided on the hinge sleeve 19.

[0039] Preferably, the connecting head 18 is spherical, the hinge sleeve 19 is hollow inside and is sleeved on the connecting head 18, the hinge sleeve 19 is provided with a threaded hole, and the locking stud 20 is connected to the threaded hole.

[0040] In the above arrangement, the support plate 5 and the support bracket 9 are movably connected via the connecting head 18 and the hinge sleeve 19. The support bracket 9 can be rotated to adjust the position of the support bracket 9 relative to the support plate 5. The locking stud 20 is rotated to abut against the connecting head 18, thereby fixing the angle of the support bracket 9 relative to the support plate 5, which is convenient for supporting the patient's arm.

[0041] In this embodiment, the device is connected to the side edge of the bed through the clamping plate 201, and the height of the support plate 5 is adjusted by rotating the adjustment sleeve 8, thereby adjusting the height of the support bracket 9, and the patient's arm is placed in the support bracket 9 and restrained in the support bracket 9 by the restraint belt 10, thereby limiting the patient's arm from moving horizontally and vertically (i.e., front, back, left, and right) along the support bracket 9, and the limiting sleeve 11 is used to abut against the patient's elbow, thereby limiting the radial movement of the patient's arm along the support bracket 9, thereby preventing the puncture needle from being pulled when the patient's arm is pulled.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An arm fixing device for hemodialysis, characterized in that: include: A connection assembly, comprising a connection base plate (1) and a clamping member (2) arranged on the connection base plate (1); A locking piece (3) is provided inside the clamping piece (2); The adjustment assembly comprises an adjustment rod (4) arranged on a connecting base plate (1) and a support plate (5) arranged on the adjustment rod (4); a retractable positioning rod (6) is arranged between the support plate (5) and the connecting base plate (1); a lifting rod (7) is movably arranged in the adjustment rod (4), and an adjustment sleeve (8) is arranged on the adjustment rod (4); the adjustment sleeve (8) is threadedly connected to the lifting rod (7); the adjustment sleeve (8) rotates under the action of an external force to move the lifting rod (7) upward or downward; The limiting mechanism comprises a support bracket (9) arranged on a support plate (5), a restraining belt (10) arranged on the support bracket (9), and a limiting sleeve (11) movably arranged on the support bracket (9); the support bracket (9) is provided with a notch (12); one end of the restraining belt (10) is fixedly connected to the support bracket (9), and the other end passes through the notch (12) and is detachably connected to the support bracket (9); the support bracket (9) is provided with a limiting member (13); the limiting member (13) rotates under the action of an external force and abuts against the limiting sleeve (11), thereby fixing the position of the limiting sleeve (11) relative to the support bracket (9).

2. The hemodialysis arm fixing device according to claim 1, characterized in that: The clamping member (2) comprises a clamping plate (201); a clamping groove (202) is provided in the clamping plate (201); the locking member (3) comprises a locking rod (301) and a locking plate (302) provided in the clamping groove (202); the locking rod (301) penetrates the clamping plate (201) via a thread and is rotatably connected to the locking plate (302).

3. The hemodialysis arm fixing device according to claim 2, characterized in that: The adjusting rod (4) is provided with a mounting cavity; the lifting rod (7) is slidably arranged in the mounting cavity; and the adjusting sleeve (8) is rotatably mounted on the end of the adjusting rod (4).

4. The hemodialysis arm fixing device according to claim 3, characterized in that: The support bracket (9) is provided with a slideway (14); the limiting sleeve (11) is provided with a slide plate (15) which slides in the slideway (14); the limiting member (13) comprises a limiting screw; one end of the limiting screw penetrates the slideway through a thread and abuts against the slide plate (15).

5. The hemodialysis arm fixing device according to claim 4, characterized in that: A cotton sleeve (16) is provided in the limiting sleeve (11); and a supporting groove (17) is provided in the cotton sleeve (16).

6. The hemodialysis arm fixing device according to claim 5, characterized in that: The support plate (5) is provided with a connecting head (18); the bottom end of the support bracket (9) is provided with an articulated sleeve (19) rotatably connected to the connecting head (18); and the articulated sleeve (19) is provided with a locking stud (20).

Images