Arm restraining tool for hemodialysis internal arteriovenous fistula patient

Abstract

The utility model discloses an arm restraining tool for a hemodialysis internal arteriovenous fistula patient, and aims to solve the technical problems that in the prior art, when the hand of the patient is restrained, the patient cannot properly move to change the body position, the skin is easily damaged, and the medical experience of the patient is reduced. The restraining tool comprises an arm base plate, a sponge layer adheres to the upper surface of the arm base plate, an arc-shaped transparent film is buckled to the middle of the upper portion of the arm base plate, a connecting block is fixedly connected to the middle of one end of the arm base plate, and three first finger sleeves arranged side by side are fixedly connected to the upper surface of the connecting block; adjusting assemblies are arranged at one end of the arm base plate and located on the two sides of the connecting block correspondingly. Second finger sleeves are arranged at the tops of the two adjusting assemblies correspondingly. By means of the design, the technical problems that in the prior art, when the hands of a patient are restrained, the patient cannot move properly to change the body position, the skin is prone to being damaged, and the medical experience of the patient is reduced are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical auxiliary appliances, and in particular relates to an arm restraint device for patients with hemodialysis arteriovenous fistula. Background Art

[0002] Arteriovenous fistula is a surgical procedure that anastomoses the patient's peripheral arteries and superficial veins, allowing arterial blood to flow to the veins. The veins are arterialized over 4-8 weeks, forming an arteriovenous fistula that facilitates vascular puncture and allows the patient to achieve the blood flow required for dialysis. Generally, after puncturing the arterial end, the puncture needle is connected to the extracorporeal circulation line, and the blood is introduced into the dialyzer for ultrafiltration and detoxification through the rotation of the dialysis machine pump. The purified blood is returned to the body through the puncture needle at the venous end of the fistula arm. The entire process is a closed-circulation hemodialysis treatment that takes about 4 hours.

[0003] The hemodialysis patient group is quite special. It is very common to encounter emergencies during the dialysis process. In order for the dialysis treatment to proceed smoothly, the patient's upper limbs need to be restrained and fixed. Generally, traditional wrist restraints will make the restraint belt tighter and tighter, which is easy to damage the skin. In severe cases, it will also lead to poor blood flow in the patient's arteriovenous fistula and cause blockage of the arteriovenous fistula. There are also research reports showing that the newly developed arteriovenous fistula hand restraint and fixation device is used to restrain the patient's arteriovenous fistula arm. The entire device is fixed on the edge of the bed, leaving no room for the patient's arteriovenous fistula hand to move. Since dialysis takes 4 hours, the arm is restrained in the same position, which is also prone to soreness. Secondly, for this type of patient, in order to ensure the smooth progress of dialysis treatment, the patient's 4-hour medical experience is ignored. Therefore, a hemodialysis arteriovenous fistula patient arm restraint device is designed to change the above technical defects. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an arm restraint device for hemodialysis arteriovenous fistula patients. The restraint device is intended to solve the technical problems of the prior art that when restraining the patient's hand, the patient cannot move and change the position appropriately, which easily causes skin damage and reduces the patient's medical experience.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the utility model provides an arm restraint device for patients with hemodialysis arteriovenous fistula, the restraint device comprising an arm pad, a sponge layer bonded to the upper surface of the arm pad, an arc-shaped transparent film fastened to the upper middle part of the arm pad, a connecting block fixedly connected to the middle part of one end of the arm pad, three first finger sleeves arranged side by side fixedly connected to the upper surface of the connecting block, adjustment components are provided at one end of the arm pad and on both sides of the connecting block, second finger sleeves are provided on the top of the two adjustment components, and a Velcro elastic band is provided at the other end of the arm pad.

[0008] Preferably, three L-shaped blocks are fixedly connected to the lower surfaces of both ends of the transparent film, the three L-shaped blocks are distributed at equal intervals, and a plurality of evenly distributed air holes are opened in the middle of the sponge layer.

[0009] Furthermore, the front upper surface and the rear upper surface of the arm pad are both provided with L-shaped grooves adapted to the L-shaped clamping blocks, and the L-shaped clamping blocks are clamped inside the L-shaped grooves.

[0010] Furthermore, installation grooves are provided on the upper and lower surfaces of one end of the arm pad at positions corresponding to the adjustment components, a guide hole is provided in the middle of the installation groove, and a plurality of tooth grooves distributed at equal intervals are provided in the middle of the inner walls on both sides of the guide hole, and the adjustment components are arranged in the two installation grooves and the guide holes.

[0011] Furthermore, the two adjustment components include an adjustment block, a rectangular groove is provided in the middle of the bottom end of the adjustment block, and sliding grooves adapted to the guide holes are provided in the middle of both sides of the adjustment block, the sliding grooves are connected to the rectangular grooves, and guide grooves are provided on the left and right inner walls of the rectangular grooves and at positions corresponding to the sliding grooves. A first rack is slidably connected between the two guide grooves, and the tooth ends of the two first racks are respectively located in the corresponding sliding grooves, and the tooth ends of the first racks are clamped with the tooth grooves, and the second racks are fixedly connected to the sides where the two first racks are close to each other.

[0012] Furthermore, the two second racks are arranged opposite to each other, and a return spring is fixedly connected between both ends of the side where the two first racks are close to each other.

[0013] Furthermore, a rotating rod is rotatably connected to the middle part of the inner top wall of the rectangular groove, a gear is sleeved on the upper end of the rotating rod, and the two sides of the gear are respectively meshed with two second racks. A shift block is fixedly connected to the bottom end of the rotating rod, and the lower surface of the shift block is located inside the rectangular groove.

[0014] Furthermore, one end of the Velcro elastic band is fixedly connected to the rear side of the sponge layer, the other end of the arm pad is fixedly connected to the front side with a U-shaped rod, and the other end of the Velcro elastic band crosses over the top of the sponge layer and is wrapped around the inner side of the U-shaped rod.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model provides an arm pad, engages a transparent film on the arm pad, and provides a Velcro elastic band for fixing the arm and a first finger sleeve and a second finger sleeve for placing the fingers. The thumbs and little fingers of the left and right hands can be limited by moving the adjustment component, and the arm can be limited by the Velcro elastic band at the same time. In this way, the patient's internal fistula hand is restrained, but the patient's internal fistula blood vessels are not compressed, and the patient's blood flow rate is not affected. The patient's internal fistula arm can be properly moved and the body position can be changed, which can ensure that the internal fistula blood vessels are not punctured by the puncture needle to cause hematoma. At the same time, the transparent film can be used to observe the patient's puncture needle condition to see if there is bleeding, hematoma, needle dislocation, etc., and the patient's non-fistula hand can be prevented from pulling out the needle. At the same time, there is no need to restrain the patient's non-fistula hand, thereby improving the patient's medical experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is another perspective schematic diagram of the utility model;

[0020] Figure 3 It is an explosion diagram of the utility model;

[0021] Figure 4 It is a schematic diagram of the connection part between the transparent film and the arm pad of the utility model;

[0022] Figure 5 For the utility model Figure 3 A schematic diagram of the structure enlargement in the middle;

[0023] Figure 6 This is a schematic diagram of the connection between one of the adjustment components and the finger sleeve of the utility model;

[0024] Figure 7 This is a schematic diagram of another viewing angle of one of the adjustment components of the present invention.

[0025] The marks in the attached drawings are: 1. arm pad; 101. sponge layer; 102. ventilation hole; 103. L-shaped groove; 2. transparent film; 201. L-shaped block; 3. connecting block; 4. first finger cot; 5. mounting groove; 501. guide hole; 502. tooth groove; 6. adjustment component; 601. adjustment block; 602. rectangular groove; 603. slide groove; 604. guide groove; 605. rotating rod; 606. gear; 607. shift block; 7. second finger cot; 8. Velcro elastic band; 9. first rack; 901. second rack; 902. reset spring. DETAILED DESCRIPTION

[0026] This specific embodiment is an arm restraint device for hemodialysis arteriovenous fistula patients, and its structural schematic diagram is as follows: Figure 1-Figure 7 As shown, the restraint device includes an arm pad 1, a sponge layer 101 is bonded to the upper surface of the arm pad 1, an arc-shaped transparent film 2 is buckled in the upper middle part of the arm pad 1, a connecting block 3 is fixedly connected to the middle part of one end of the arm pad 1, three first finger cots 4 arranged side by side are fixedly connected to the upper surface of the connecting block 3, an adjustment component 6 is provided at one end of the arm pad 1 and on both sides of the connecting block 3, second finger cots 7 are provided on the top of the two adjustment components 6, and a Velcro elastic band 8 is provided at the other end of the arm pad 1; the inner walls of the first finger cot 4 and the second finger cot 7 are bonded with a flexible layer.

[0027] When in use, the two adjustment components 6 can be adjusted. When placing the right arm, the rear adjustment component 6 can be moved to the left, and the front adjustment component 6 can be moved to the right, so that the positions of the two second finger sleeves 7 correspond to the thumb and the little finger respectively; when placing the left arm, the above actions are performed in reverse, and then the arm is passed through the Velcro elastic band 8 and the fingers are placed in the three first finger sleeves 4 and the two second finger sleeves 7 respectively, and then the Velcro elastic band 8 is adjusted to a suitable tightness and fixed. Finally, the transparent film 2 is slightly squeezed inwards, and the L-shaped block 201 at the bottom thereof is aligned with the corresponding L-shaped groove 103 and inserted, and then the transparent film 2 is released, and under the action of the rebound force, the transparent film 2 drives the L-shaped block 201 to be stuck into the L-shaped groove 103.

[0028] In this embodiment, three L-shaped blocks 201 are fixedly connected to the lower surfaces of both ends of the transparent film 2, and the three L-shaped blocks 201 are evenly spaced. A plurality of evenly distributed air holes 102 are provided in the middle of the sponge layer 101. The L-shaped blocks 201 and the transparent film 2 are an integrated structure, and the condition of the restrained arm can be observed through the transparent film 2 while avoiding accidental contact with the puncture needle. The sponge layer 101 and the air holes 102 thereon can ensure the comfort of the arm placement.

[0029] In this embodiment, the front end upper surface and the rear end upper surface of the arm pad 1 are both provided with L-shaped grooves 103 adapted to the L-shaped block 201, and the L-shaped block 201 is snapped into the inside of the L-shaped groove 103; by slightly squeezing the transparent film 2 inward, and aligning the L-shaped block 201 at the bottom with the corresponding L-shaped groove 103 and then releasing the transparent film 2, the transparent film 2 drives the L-shaped block 201 to be snapped into the L-shaped groove 103 under the action of the rebound force, so that the transparent film 2 can be quickly installed and removed.

[0030] In this embodiment, mounting grooves 5 are provided on the upper and lower surfaces of one end of the arm pad 1 and at positions corresponding to the adjustment component 6, a guide hole 501 is provided in the middle of the mounting groove 5, and a plurality of tooth grooves 502 distributed at equal intervals are provided in the middle of the inner walls on both sides of the guide hole 501, and the adjustment component 6 is arranged in the two mounting grooves 5 and the guide hole 501; the mounting groove 5 and the guide hole 501 can facilitate the movement and limitation of the adjustment component 6.

[0031] In this embodiment, the two adjustment components 6 include an adjustment block 601, a rectangular groove 602 is provided in the middle of the bottom end of the adjustment block 601, and sliding grooves 603 adapted to the guide holes 501 are provided in the middle of both sides of the adjustment block 601. The sliding grooves 603 are connected to the rectangular groove 602, and guide grooves 604 are provided on the left and right inner walls of the rectangular groove 602 and at positions corresponding to the sliding grooves 603. A first rack 9 is slidably connected between the two guide grooves 604, and the tooth ends of the two first racks 9 are respectively located in the corresponding sliding grooves 603. The tooth ends of the first racks 9 are respectively engaged with the tooth grooves 502, and the second racks 901 are fixedly connected to the sides of the two first racks 9 that are close to each other.

[0032] The inner top wall and inner bottom wall of the slide groove 603 are slidably connected with the inner bottom wall of the upper mounting groove 5 and the inner top wall of the lower mounting groove 5, the inner side wall of the slide groove 603 is slidably connected with the inner wall of the guide hole 501, and at the same time the adjustment block 601 is slidably connected with the two mounting grooves 5, so that the adjustment block 601 can stably slide in the mounting groove 5, so that the second finger sleeve 7 can move left and right.

[0033] In this embodiment, the two second racks 901 are arranged opposite to each other, and a return spring 902 is fixedly connected between the two ends of the side where the two first racks 9 are close to each other; under the action of the return spring 902, the two first racks 9 can always be kept away from each other.

[0034] In this embodiment, a rotating rod 605 is rotatably connected to the middle part of the inner top wall of the rectangular groove 602, and a gear 606 is sleeved on the upper end of the rotating rod 605. The two sides of the gear 606 are respectively meshed with the two second racks 901. The bottom end of the rotating rod 605 is fixedly connected to a shift block 607, and the lower surface of the shift block 607 is located inside the rectangular groove 602.

[0035] By rotating the shift block 607 clockwise, the rotating rod 605 can be driven to rotate, and the rotating rod 605 can drive the gear 606 to rotate clockwise, and the gear 606 can mesh with the second racks 901 on both sides thereof, so that the two second racks 901 slide in the guide groove 604 and approach each other, so that the second racks 901 are disengaged from the tooth groove 502, thereby making the adjustment block 601 lose the limit, and then the adjustment block 601 can be moved to the appropriate position as needed, and finally the shift block 607 is released, and the first rack 9 can be stuck in the tooth groove 502 to complete the limit under the rebound action of the reset spring 902.

[0036] In this embodiment, one end of the Velcro elastic band 8 is fixedly connected to the back side of the sponge layer 101, and the other end of the arm pad 1 is fixedly connected to the U-shaped rod on the front side, and the other end of the Velcro elastic band 8 crosses over the top of the sponge layer 101 and is wrapped around the inner side of the U-shaped rod; wherein a female patch is bonded to one side of the other end of the Velcro elastic band 8, and a male patch is bonded to the side of the Velcro elastic band 8 close to the other end thereof, and the Velcro elastic band 8 can be adjusted to a suitable position by tightening or loosening the Velcro elastic band 8 and then cooperating with the female patch and the male patch, thereby fixing the arm.

[0037] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. An arm restraint device for hemodialysis arteriovenous fistula patients, characterized in that: The restraint device comprises an arm pad (1), the upper surface of the arm pad (1) is bonded with a sponge layer (101), the upper middle part of the arm pad (1) is buckled with an arc-shaped transparent film (2), the middle part of one end of the arm pad (1) is fixedly connected with a connecting block (3), the upper surface of the connecting block (3) is fixedly connected with three first finger cots (4) arranged side by side, one end of the arm pad (1) and both sides of the connecting block (3) are provided with adjustment components (6), the tops of the two adjustment components (6) are provided with second finger cots (7), and the other end of the arm pad (1) is provided with a Velcro elastic band (8).

2. The arm restraint device for hemodialysis arteriovenous fistula patients according to claim 1, characterized in that: Three L-shaped blocks (201) are fixedly connected to the lower surfaces of both ends of the transparent film (2), and the three L-shaped blocks (201) are distributed at equal intervals. A plurality of evenly distributed air holes (102) are opened in the middle of the sponge layer (101).

3. The arm restraint device for hemodialysis arteriovenous fistula patients according to claim 2, characterized in that: The front upper surface and the rear upper surface of the arm pad (1) are both provided with L-shaped grooves (103) adapted to the L-shaped clamping block (201), and the L-shaped clamping block (201) is clamped inside the L-shaped grooves (103).

4. The arm restraint device for hemodialysis arteriovenous fistula patients according to claim 2, characterized in that: The upper surface and the lower surface of one end of the arm pad (1) are provided with mounting grooves (5) at positions corresponding to the adjustment component (6), the middle of the mounting groove (5) is provided with a guide hole (501), and the middle of the inner walls on both sides of the guide hole (501) are provided with a plurality of tooth grooves (502) distributed at equal intervals, and the adjustment component (6) is arranged in the two mounting grooves (5) and the guide hole (501).

5. The arm restraint device for hemodialysis arteriovenous fistula patients according to claim 4, characterized in that: The two adjustment components (6) each comprise an adjustment block (601), a rectangular groove (602) is provided in the middle of the bottom end of the adjustment block (601), sliding grooves (603) adapted to the guide hole (501) are provided in the middle of both sides of the adjustment block (601), the sliding grooves (603) are connected to the rectangular groove (602), the left and right inner walls of the rectangular groove (602) and the positions corresponding to the sliding grooves (603) are provided with guide grooves (604), a first rack (9) is slidably connected between the two guide grooves (604), the tooth ends of the two first racks (9) are respectively located in the corresponding sliding grooves (603), the tooth ends of the first racks (9) are clamped with the tooth grooves (502), and the two first racks (9) are fixedly connected with the second rack (901) on the sides close to each other.

6. The arm restraint device for hemodialysis arteriovenous fistula patients according to claim 5, characterized in that: The two second racks (901) are arranged opposite to each other, and a return spring (902) is fixedly connected between the two ends of the side where the two first racks (9) are close to each other.

7. The arm restraint device for hemodialysis arteriovenous fistula patients according to claim 5, characterized in that: A rotating rod (605) is rotatably connected to the middle of the inner top wall of the rectangular groove (602); a gear (606) is sleeved on the upper end of the rotating rod (605); two sides of the gear (606) are respectively meshed with two second racks (901); a shift block (607) is fixedly connected to the bottom end of the rotating rod (605); and the lower surface of the shift block (607) is located inside the rectangular groove (602).

8. The arm restraint device for hemodialysis arteriovenous fistula patients according to claim 1, characterized in that: One end of the Velcro elastic band (8) is fixedly connected to the rear side of the sponge layer (101), and the other end of the arm pad (1) is fixedly connected to a U-shaped rod on the front side, and the other end of the Velcro elastic band (8) crosses over the top of the sponge layer (101) and is wound around the inner side of the U-shaped rod.

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