Hemodialysis pipeline support buckle

Abstract

The utility model discloses a hemodialysis pipeline support buckle which comprises artery pipeline clamping grooves, vein pipeline clamping grooves, a buckle head, a flexible connecting pipe and a fixing clamp, the vein pipeline clamping grooves and the artery pipeline clamping grooves are formed in the buckle head side by side, arc-shaped limiting protruding strips are arranged on the upper portions of the artery pipeline clamping grooves and the vein pipeline clamping grooves, and a steering base is arranged at the bottom of the buckle head. The steering seat comprises a plurality of tightening arc-shaped convex plates which are annularly arranged at intervals, an expansion and contraction opening is formed between every two adjacent tightening arc-shaped convex plates, the top of the flexible connecting pipe is provided with a steering ball head and a steering adjusting nut sleeve which are matched with the steering seat in shape, and the outer sides of the tightening arc-shaped convex plates are in threaded fit with the inner sides of the steering adjusting nut sleeves; the bottoms of the flexible connecting pipes are connected with fixing clamps. According to the utility model, any height and direction can be flexibly adjusted, the bracket is more convenient to fix, the occurrence rate of adverse events in the treatment process is reduced, the working efficiency of nurses is improved, normal hemodialysis is ensured, and the bracket is easy to clinically popularize.

Description

TECHNICAL FIELD

[0001] The utility model relates to a medical instrument, especially to a hemodialysis pipeline support buckle used in a hemodialysis process. BACKGROUND

[0002] Hemodialysis is a strong operational specialty technology, and the operation link is relatively complex, and some small links in the dialysis process are neglected, which will cause serious consequences. When the medical staff in the clinic carries out blood purification treatment for the patient, a passage needs to be established between the arteriovenous of the patient, and the long dialysis blood line needs to be effectively fixed after the passage is established. Ensuring the proper fixing of the hemodialysis pipeline is one of the important contents of hemodialysis nursing work. Hemostatic forceps are commonly used in the clinic to fix the hemodialysis pipeline, and there are certain disadvantages, and the clinical application effect is not ideal. The hemostatic forceps are often fixed on the bed sheet or the patient's sleeve, which shortens the service life of the bed sheet and causes serious damage to the patient's clothes. If the fixing is not proper, the hemodialysis pipeline can be easily clamped or squeezed, which causes high venous pressure in the hemodialysis process, resulting in machine alarm, and in severe cases, the blood pump of the hemodialysis machine can stop working, or the pipeline can slide due to improper fixing of the pipeline, which can cause bleeding and coagulation risks. If not handled in time, blood in the hemodialysis machine pipeline can easily form clots. The blood clots in the dialysis consumables and the pipeline are discarded, which affects the smooth progress of hemodialysis. The applicant has applied for a patent named "blood line double-slot fixing bracelet", which improves the defects of the hemostatic forceps in fixing the hemodialysis pipeline to a certain extent, but there are still problems: the fixing bracelet cannot be adjusted in direction and height at will, and the blood line can be easily pulled, folded or caused to move or be removed due to gravity and other reasons when the patient's limbs move or the body position changes, which affects the smooth progress of blood purification treatment. CONTENT OF THE UTILITY MODEL

[0003] In view of the problems in the prior art of fixing the blood line in the hemodialysis process, the utility model analyzes and improves the blood pipeline fixing method, and proposes a hemodialysis pipeline support buckle which can not only reduce the incidence of nursing adverse events, but also flexibly adjust the direction and height of the support fixing, and improve the patient's satisfaction.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a hemodialysis pipeline bracket buckle, including an arterial pipeline slot, a venous pipeline slot, a buckle head, a flexible connecting tube, and a fixing clamp. The arterial pipeline slot and the venous pipeline slot are arranged in parallel on the buckle head, and the upper parts of the arterial pipeline slot and the venous pipeline slot are provided with arc-shaped limiting convex strips. A steering seat is provided at the bottom of the buckle head, and the steering seat includes a plurality of tightening arc-shaped convex plates arranged at annular intervals, and expansion and contraction ports are formed between adjacent tightening arc-shaped convex plates. A steering ball head and a steering adjustment nut sleeve matching the shape of the steering seat are provided on the top of the flexible connecting tube, and the outer side of the tightening arc-shaped convex plate is threadedly matched with the inner side of the steering adjustment nut sleeve. The bottom of the flexible connecting tube is connected to the fixing clamp.

[0005] Furthermore, the fixing clamp includes two upper and lower clamping units, one end of the clamping unit is provided with an arc-shaped clamping opening, and the other end of the clamping unit is provided with a continuous corrugated clamping opening, the tightening adjustment screw extends into the two clamping units and cooperates with the clamping unit thread, and a pressure spring is provided on the tightening adjustment screw between the clamping units.

[0006] Furthermore, slot buffer pads are provided in the arterial pipeline slot and the venous pipeline slot.

[0007] Beneficial effects of the utility model: Compared with the hemostatic forceps and wristband fixing methods, the hemodialysis pipeline bracket buckle of the utility model can be flexibly adjusted to any height and direction by utilizing its bracket soft connecting tube and steering adjustment nut sleeve. It adopts a two-color card slot, an arc-shaped limiting convex strip and a card slot buffer pad, which makes it more convenient to fix the bracket, reduces the incidence of adverse events in hemodialysis patients during treatment, improves the work efficiency of nurses, ensures the smooth and normal progress of hemodialysis, and is easy to promote and use in clinical practice. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of the main structure of the utility model.

[0009] Figure 2 yes Figure 1 AA cross-sectional enlarged structural diagram,

[0010] Figure 3 yes Figure 1 Schematic diagram of the B-direction structure,

[0011] Figure 4 yes Figure 1 The enlarged structural diagram at C in FIG.

[0012] In the figure, 1. Arterial line slot; 2. Venous line slot; 3. Arc-shaped limit convex strip; 4. Slot buffer pad; 5. Tightening arc-shaped convex plate; 6. Steering adjustment nut sleeve; 7. Buckle head; 8. Flexible connecting tube; 9. Fixed clamp; 9.1. Clamping unit; 9.2. Arc-shaped clamping mouth; 9.3. Compression adjustment screw; 9.4. Continuous corrugated clamping mouth; 9.5. Pressure spring; 10. Expansion and contraction mouth; 11. Steering ball head; 12. Anti-slip strip. DETAILED DESCRIPTION

[0013] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in further detail below with reference to the accompanying drawings.

[0014] The hemodialysis tubing bracket buckle of the present invention comprises an arterial tubing slot 1, a venous tubing slot 2, a buckle head 7, a flexible connecting tube 8, and a fixing clamp 9. The arterial tubing slot and the venous tubing slot are arranged in parallel on the buckle head (a slot buffer pad 4 is provided in the arterial tubing slot and the venous tubing slot to prevent the tubing from being scratched). The upper part of the arterial tubing slot and the venous tubing slot is provided with an arc-shaped limiting convex strip 3. The bottom of the buckle head is provided with a steering seat, and the steering seat includes a plurality of tightening arc-shaped convex plates 5 arranged at an annular interval. An expansion and contraction port 10 is formed between adjacent tightening arc-shaped convex plates. The top of the flexible connecting tube is provided with a steering ball head 11 and a steering ball head 12 that match the shape of the steering seat. Toward the adjusting nut sleeve 6 (anti-slip strips 12 are provided at annular intervals on the outside of the steering adjusting nut sleeve), the bottom of the flexible connecting tube is connected to a fixing clamp. In order to facilitate fixation at any position of the bed, the fixing clamp 9 includes upper and lower clamping monomers 9.1, one end of the clamping monomer is provided with an arc-shaped clamping opening 9.2, and the other end of the clamping monomer is provided with a continuous corrugated clamping opening 9.4. The arc-shaped clamping opening is used to clamp tubular fixtures (such as guardrails, etc.), and the continuous corrugated clamping opening is used to clamp plate-shaped fixtures (such as bed boards, etc.). The tightening adjustment screw 9.3 extends into the two clamping monomers and cooperates with the clamping monomer thread. A pressure spring 9.5 is sleeved on the tightening adjustment screw between the clamping monomers.

[0015] In the above, the arterial line slot 1 is marked in red and the venous line slot 2 is marked in blue. The interior of the flexible connecting tube 8 is made of metal wire and the exterior is coated with silicone or heat shrink tubing. The flexible connecting tube can be bent at will and maintained in the bent shape and effectively supports the buckle head 7. The outer side of the tightening arc convex plate 5 is threadedly matched with the inner side of the steering adjustment nut sleeve 6. The steering adjustment nut sleeve is approximately a frustum with a narrow top and a wide bottom. The steering ball head is inserted into the steering seat and the steering adjustment nut is wrapped around the steering seat. At the same time, the steering adjustment nut sleeve is rotated to tighten the tightening arc convex plate inward or outward, and the direction of the buckle head can be adjusted at will. The fixing clamp 9 is clamped at any position of the dialysis bed through any one of the two clamping ports. The two clamping monomers are tightened inward by rotating the compression adjustment nut 9.3 to complete the fixation.

[0016] Clinical research trials

[0017] 1. Patient Source: Fifty patients randomly selected from our hospital undergoing blood purification treatment, who underwent regular hemodialysis two or three times per week, each dialysis session lasting four hours, were selected. The blood circuit was fixed 50 times using a vascular clamp; this served as the control group. Fifty patients randomly selected from our hospital undergoing blood purification treatment, who underwent hemodialysis tubing fixation 50 times using a hemodialysis tubing clamp, served as the experimental group.

[0018] 2. Research methods: The observation group used hemodialysis stent clips to fix the blood circuit tube, and the control group used conventional methods to fix it. The slippage rate of hemodialysis fistula needles in the two groups of hemodialysis patients was compared.

[0019] 3. Inclusion criteria: ① Regular hemodialysis for ≥ 3 months; ② Age ≥ 18 years; ③ Patients with clear consciousness, no limb sensory impairment, normal intelligence, good cooperation, and using an arteriovenous fistula for hemodialysis.

[0020] 4. Exclusion criteria: Hemodialysis patients with confusion, epilepsy, and low compliance.

[0021] 5. Operation method

[0022] (1) Materials: One hemodialysis stent clip (see Figure 1 ), one hemodialysis machine, 1000ml of 0.9% sodium chloride, one dialyzer, one set of dialysis tubing, one pair of 10ml syringes, one set of internal fistula puncture needles, one bottle of low molecular weight heparin sodium, a disposable dialysis care bag, etc.

[0023] (2) Perform self-inspection on the dialysis machine, wash hands, wear gloves, install the dialyzer, pre-flush the dialysis tubing, vent inside and outside the membrane, and set the dialysis parameters for the patient.

[0024] (3) According to the needs of dialysis patients, the hemodialysis bracket clip is tightened by rotating the adjusting nut so that the fixing clamp is clamped at any position on the dialysis bed, the patient's arteriovenous fistula is assessed, and the arteriovenous fistula is punctured and blood is drawn onto the machine.

[0025] (4) During the blood drawing process, first fix the arterial line in the red slot on the buckle head of the hemodialysis line bracket. After drawing blood to the venous pot, connect the venous line to the patient's fistula needle and fix it in the blue slot. Use the bracket buckle to fix the blood line, and then adjust the height of the bracket buckle and the direction of the buckle head according to the patient's position and needs by changing the shape of the flexible connecting tube and the tightness of the steering adjustment nut sleeve to properly fix the line, and then check and confirm again.

[0026] (5) Inject the low molecular weight heparin dose according to the doctor's instructions, check whether the pipeline connection is correct and tight, and double-check the dialysis parameters again to ensure that they are correct.

[0027] (6) After the hemodialysis treatment is completed, the blood is returned to the machine. Strictly follow the principles of aseptic operation and hand hygiene before and after the operation to avoid cross infection. Use disinfectant wipes to wipe and disinfect the hemodialysis machine and bracket clips.

[0028] 6. Observation indicators

[0029] The observation group used hemodialysis stent clips to fix the blood circuit tube, while the control group used conventional fixation methods. The incidence of hemodialysis fistula needle slippage, abnormal events of blood circuit tube fixation, and patient satisfaction were compared between the two groups.

[0030] 7. Statistical methods

[0031] (1) Table 1 shows the comparison of the incidence of internal fistula needle slippage between the two groups of patients. The internal fistula needle slippage rate of the observation group was 4%, which was lower than the 24% of the control group (P < 0.05).

[0032] .

[0033] (2) Table 2 shows the comparison of abnormal events related to blood tube fixation between the two groups of patients (P < 0.05). The statistical results show that the number of abnormal events related to blood tube fixation in the observation group is lower than that in the control group (P < 0.05), as shown in the following Table 2:

[0034]

[0035] (3) Table 3 is a comparison of the satisfaction survey of the two groups of patients. The statistical results show that the patients in the observation group are more satisfied than those in the control group, as shown in the following Table 3:

[0036] .

[0037] Note: Comparison of overall satisfaction between the two groups: X²=6.383, P=0.01150<0.05 (X² and P values ​​are commonly used in medical statistics. The calculation method is not described in detail here. The chi-square value X² measures the degree of difference between the observed value and the expected value. The larger the chi-square value, the more significant the difference between the two groups of data. X²=Σ(observed value - expected value)² ÷ expected value. The P value refers to the probability that the observed difference is at least as extreme as the expected difference in the hypothesis test. The smaller the P value, the more significant the observed difference. It is generally believed that if the P value is less than the set significance level (the set significance level is generally 0.05), the null hypothesis is rejected and it is considered that there is a significant difference between the two groups of data).

[0038] 8. Results

[0039] This experiment evaluated the effect of the production and application of the hemodialysis stent buckle in the process of hemodialysis treatment. The results showed that the rate of internal fistula needle slippage and abnormal blood tube events during treatment in the observation group were lower than those in the control group. The patient satisfaction in the observation group was significantly higher than that in the control group. According to the above research results, the production and application of the hemodialysis stent buckle designed by our hospital in clinical nursing work can reduce the incidence of nursing adverse events, improve nursing safety and patient satisfaction.

[0040] The above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to specific embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should all be included in the scope of protection of the claims of the present invention.

Claims

1. Hemodialysis tubing bracket buckle, characterized by: The invention comprises an arterial pipeline slot (1), a venous pipeline slot (2), a buckle head (7), a flexible connecting pipe (8), and a fixing clamp (9). The arterial pipeline slot (1) and the venous pipeline slot (2) are arranged in parallel on the buckle head. The upper parts of the arterial pipeline slot and the venous pipeline slot are provided with arc-shaped limiting convex strips (3). The bottom of the buckle head is provided with a steering seat. The steering seat includes a plurality of tightening arc-shaped convex plates (5) arranged at an annular interval. An expansion and contraction port (10) is formed between adjacent tightening arc-shaped convex plates. The top of the flexible connecting pipe is provided with a steering ball head (11) and a steering adjustment nut sleeve (6) that match the shape of the steering seat. The outer side of the tightening arc-shaped convex plate (5) is threadedly matched with the inner side of the steering adjustment nut sleeve (6). The bottom of the flexible connecting pipe is connected to the fixing clamp (9).

2. The hemodialysis tubing bracket buckle according to claim 1, characterized in that: The fixing clamp (9) comprises an upper and a lower clamping monomer (9.1), one end of the clamping monomer is provided with an arc-shaped clamping opening (9.2), and the other end of the clamping monomer is provided with a continuous corrugated clamping opening (9.4), a tightening adjustment screw (9.3) extends into the two clamping monomers and cooperates with the clamping monomer threads, and a pressure spring (9.5) is sleeved on the tightening adjustment screw (9.3) between the clamping monomers.

3. The hemodialysis tubing bracket buckle according to claim 1, characterized in that: A slot buffer pad (4) is provided in the arterial pipeline slot (1) and the venous pipeline slot (2).

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