Hemodialysis puncture needle

Abstract

The utility model discloses a hemodialysis puncture needle, and relates to the technical field of hemodialysis. The puncture needle comprises a puncture needle body, wing plates are fixedly connected to the two sides of the puncture needle body respectively, a clamping rod is clamped to the top of the puncture needle body, a fixing strip is fixedly connected to one end of the clamping rod, a buckle is fixedly connected to the top of the fixing strip, a section rod is clamped in the buckle, and the section rod is fixedly connected to one end of the clamping rod. The wing plate, the clamping rod, the fixing strip and the wrist ring are arranged, a medical adhesive tape mode is adopted, the main body portion of the puncture needle is bonded and fixed, it is avoided that due to sweating and errhysis of a patient, the adhesiveness of the fixing adhesive tape is lost, and the puncture needle slips, meanwhile, a supporting frame is formed through the section rod and the wrist ring, and therefore the puncture needle can be fixed conveniently. The puncture needle is prevented from being disengaged outwards due to disordered movement of a patient, and the risk that the puncture needle slips is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hemodialysis, in particular to a hemodialysis puncture needle. Background Art

[0002] In patients undergoing maintenance hemodialysis, well-functioning vascular access is a prerequisite for ensuring the smooth progress of hemodialysis. Currently, the vascular access for patients undergoing maintenance hemodialysis mainly includes autologous arteriovenous fistula, graft fistula and central venous catheter. Currently, arteriovenous fistula is the most ideal and most commonly used vascular access for maintenance dialysis patients and is the "lifeline" for hemodialysis patients to receive treatment.

[0003] Existing hemodialysis puncture needles are generally attached with tape. However, during dialysis treatment for patients with arteriovenous fistula, if the patient has bleeding or sweating, the puncture needle is more likely to slip, causing the patient to lose a large amount of blood, which directly endangers the patient's life. This not only increases the patient's pain and medical expenses, but also affects the patient's dialysis and quality of life. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a hemodialysis puncture needle to solve the technical problem that the puncture needle is more likely to slip due to bleeding and sweating.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hemodialysis puncture needle, comprising a puncture needle body, both sides of the puncture needle body are fixedly connected with wing plates, the top of the puncture needle body is clamped with a clamping rod, one end of the clamping rod is fixedly connected with a fixing bar, the top of the fixing bar is fixedly connected with a buckle, the inside of the buckle is clamped with a section rod, and one end of the section rod is fixedly connected with a wrist ring.

[0006] By adopting the above technical solution, the puncture needle body provides a basis for puncture and blood circulation, the wing plate increases the stability and operational convenience during puncture, and the nurse can use the wing plate to quickly puncture the skin. At the same time, the wing plate is fixed to the patient's skin with medical tape during fixation. The medical tape can have a good breathable effect to avoid the loss of adhesion of the fixing tape due to sweating and bleeding of the patient. The clamping rod is combined with the fixing strip to form a fixing mechanism to combine the puncture needle body and the subsequent fixing strip into a stable whole, so that the subsequent section rod and wrist ring can clamp the depression of the patient's wrist joint to form a stable fixation. The fixing strip provides the first level of fixation and restriction through its own locking to prevent the puncture needle body from slipping outward. The design of the buckle and the section rod allows for quick connection and release of the wrist ring, thereby improving operational efficiency, and the wrist ring provides an additional fixing point for the entire device to ensure the stability of the puncture needle position and reduce the risk of the puncture needle body slipping during dialysis.

[0007] Furthermore, there are multiple buckles, all of which are circular and arranged equidistantly.

[0008] By adopting the above technical solution, multiple equidistantly arranged circular buckles provide flexible fixing points, allowing medical personnel to adjust the fixing position and tightness of the tube as needed, increasing the adaptability of the fixation to accommodate wrists of different sizes, while providing optional fixing points for the segment rod and wrist ring.

[0009] Furthermore, a fixing block is fixedly connected to one side of the fixing bar, and a first clamping claw is fixedly connected inside the fixing block.

[0010] By adopting the above technical solution, the first claw and serration inside the fixing block cooperate with each other to enhance the stability of the annular clamping of the fixing strip. By looping and locking itself, a first level of fixation is provided to ensure that the puncture needle body remains fixed during use to prevent displacement or falling off.

[0011] Furthermore, a sawtooth is fixedly connected to the other side of the fixing bar, and a plurality of the sawtooths are provided.

[0012] By adopting the above technical solution, the multiple serrations fixedly connected to the other side of the fixing strip are designed to cooperate with the first claw to provide an adjustable locking position, allowing the user to adjust the tightness of the fixator on the patient as needed.

[0013] Furthermore, two clamping rods are provided, and the two clamping rods are arranged in a mirror image along the center line of the puncture needle body.

[0014] By adopting the above technical solution, the two clamping rods are arranged in a mirror image along the center line of the puncture needle body, which can evenly distribute the fixing force on the puncture needle body and reduce the instability caused by deflection.

[0015] Furthermore, a catheter is fixedly connected to the rear side of the puncture needle body, and the catheter is matched with the buckle.

[0016] By adopting the above technical solution, the catheter fixedly connected to the rear side of the puncture needle body is adapted to the buckle, allowing the catheter to be stably connected to the buckle on the fixing bar, thereby achieving necessary arrangement and limitation of the dialysis pipeline and ensuring smooth flow of blood during dialysis.

[0017] Furthermore, the two wing plates are arranged in a mirror image along the center line of the puncture needle body.

[0018] By adopting the above technical solution, the two wing plates are arranged in a mirror image along the center line of the puncture needle body, so that the puncture needle body can be fixed on the two wing plates using medical tape. The medical tape has good air permeability, which helps prevent sweat from accumulating on the skin, so that the adhesion effect can be reliably maintained.

[0019] Furthermore, two section rods are provided, and the materials of the two section rods are elastic materials.

[0020] By adopting the above technical solution, the use of two elastic rods increases the adaptability and comfort of the fixator. This design allows the rods to provide a certain degree of elasticity when fixed, adapting to the wrist or ankle size of different patients, while maintaining a stable support force and reducing discomfort during use. The selection of elastic materials ensures that even if worn for a long time, it will not cause excessive pressure on the patient, thereby improving the wearing comfort.

[0021] Furthermore, a clamping groove is provided on one side of the interior of the fixing block, and a second clamping claw is slidably connected to the interior of the clamping groove.

[0022] By adopting the above technical solution, the slot inside the fixed block is combined with the second claw in sliding connection to provide an unlockable locking mechanism, which allows the second claw to be pushed out of the slot as needed, thereby unlocking the saw teeth.

[0023] Furthermore, a sliding rod is fixedly connected to one side of the second claw, and a spring is provided between the sliding rod and the fixed block.

[0024] By adopting the above technical solution, the combination of the second claw, the sliding rod and the spring provides an automatic rebound function for the fixing mechanism, so that the second claw can automatically return to its initial position when released, simplifying the operation process and improving the convenience and efficiency of use.

[0025] In summary, the utility model mainly has the following beneficial effects:

[0026] 1. The utility model provides a wing plate, a clamping rod, a fixing strip and a wrist ring, and fixes the main body of the puncture needle to the patient's skin in the form of medical tape, so as to avoid the loss of adhesion of the fixing tape due to sweating and bleeding of the patient, which may cause the puncture needle to slip off. At the same time, the section rod and the wrist ring are used to form a support frame to prevent the puncture needle from slipping out due to the patient's disorderly movement, thereby reducing the risk of the puncture needle slipping off, improving the fixing method of the dialysis puncture needle, reducing the frequency of hospitalization of the patient, and thus improving the quality of life of the patient;

[0027] 2. The utility model provides a fixing strip and a buckle, so that the catheter can be snapped on the fixing strip as needed, thereby realizing the arrangement and positioning of the dialysis pipeline. By directly fixing the catheter on the buckle, the convenience of fixing the pipeline is improved, and the difficulty of nursing is reduced;

[0028] 3. The utility model provides a second clamping claw, a spring and a sliding rod, so that the fixing strip can be quickly removed when the needle needs to be removed, thereby achieving rapid disassembly and assembly, improving work efficiency, and improving the safety of the nurse's nursing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0030] Figure 2 It is a schematic diagram of the explosion three-dimensional structure of the utility model;

[0031] Figure 3 It is a rear view structural schematic diagram of the utility model;

[0032] Figure 4 It is a schematic diagram of the three-dimensional structure of the second embodiment of the utility model.

[0033] In the figure: 1. puncture needle body; 2. wing plate; 3. clamping rod; 4. fixing strip; 5. buckle; 6. section rod; 7. wrist ring; 8. fixing block; 9. first clamping claw; 10. sawtooth; 11. catheter; 12. second clamping claw; 13. sliding rod; 14. spring; 15. slot. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0035] The following describes an embodiment of the utility model based on its overall structure.

[0036] Embodiment 1:

[0037] A hemodialysis puncture needle, such as Figure 1-Figure 4As shown, it includes a puncture needle body 1, both sides of the puncture needle body 1 are fixedly connected with wing plates 2, the top of the puncture needle body 1 is clamped with a clamping rod 3, one end of the clamping rod 3 is fixedly connected with a fixing strip 4, the top of the fixing strip 4 is fixedly connected with a buckle 5, the inside of the buckle 5 is clamped with a section rod 6, one end of the section rod 6 is fixedly connected with a wrist ring 7, the puncture needle body 1 provides a basis for puncture and blood circulation, the wing plate 2 increases the stability and operation convenience during puncture, the nurse can use the wing plate 2 to quickly pierce the skin, and at the same time, use medical tape to fix the wing plate 2 to the patient's skin during fixation to avoid the patient's sweating and bleeding causing the fixing tape to lose its adhesiveness, the clamping rod 3 is combined with the fixing strip 4 to form a fixing mechanism to combine the puncture needle body 1 and the subsequent fixing strip 4 into a stable whole, so that the subsequent section rod 6 and wrist ring 7 can clamp the patient's The depression at the wrist joint forms a stable fixation. The fixing strip 4 realizes self-locking by inserting one end of itself into the fixing block 8, fixing itself near the patient's puncture position, providing the first level of fixation and restriction to prevent the puncture needle body 1 from slipping outward. The design of the buckle 5 and the segment rod 6 allows for quick connection and release of the wrist ring 7, and according to the patient's puncture position, the appropriate segment rod 6 position is selected for engagement, achieving adjustable fixation and improving operational efficiency. The wrist ring 7 provides an additional fixing point for the entire device, so that the device can be fixed on the patient's wrist joint, and the depression and protrusion of the wrist joint are used to form a support to ensure the stability of the position of the puncture needle body 1, reduce the risk of the puncture needle body 1 slipping during dialysis, achieve stable fixation of the hemodialysis puncture needle and the external end of the tubing, and improve the safety of the puncture needle.

[0038] See also Figure 1 , Figure 2 and Figure 3 There are multiple buckles 5, all of which are circular and equidistantly arranged. Multiple equidistantly arranged circular buckles 5 provide flexible fixing points, allowing the user to adjust the fixing position and tightness of the pipeline as needed, increasing the adaptability of the fixation, and being suitable for wrists of different sizes. At the same time, optional fixing points are provided for the segment rod 6 and the wrist ring 7, ensuring the stability and safety of the puncture needle and the pipeline during the dialysis process.

[0039] See also Figure 1 , Figure 2 and Figure 3A fixing block 8 is fixedly connected to one side of the fixing strip 4, and a first claw 9 is fixedly connected to the interior of the fixing block 8. The first claw 9 and the serration 10 inside the fixing block 8 cooperate with each other to enhance the stability of the annular engagement of the fixing strip 4. By looping around and locking the fixing strip 4, a first level of fixation is provided to ensure that the puncture needle body 1 remains fixed during use to prevent displacement or falling off. The reverse oblique setting of the first claw 9 also provides a reliable locking method while facilitating subsequent disassembly, thereby increasing safety and stability during use and ensuring the smooth progress of the dialysis process.

[0040] See also Figure 1 , Figure 2 and Figure 3 A sawtooth 10 is fixedly connected to the other side of the fixing strip 4, and a plurality of sawtooths 10 are provided. The plurality of sawtooths 10 fixedly connected to the other side of the fixing strip 4 are designed to cooperate with the first claw 9 to provide an adjustable locking position, allowing the user to adjust the tightness of the fixator on the patient as needed to ensure the stability of the puncture needle and the pipeline and the comfort of the patient. The use of multiple sawtooths increases the adjustment flexibility, improves the adaptability to the thickness of the wrists of different patients, and improves the safety and efficiency of the overall fixation system.

[0041] See also Figure 1 , Figure 2 and Figure 3 There are two clamping rods 3, which are arranged in a mirror image along the center line of the puncture needle body 1. The two clamping rods 3 are arranged in a mirror image along the center line of the puncture needle body 1, which can evenly distribute the fixing force on the puncture needle body 1, reduce the instability caused by deflection, help ensure the stability of the puncture needle during the dialysis process, prevent the needle from being skewed due to deflection, and improve safety.

[0042] See also Figure 1 , Figure 2 and Figure 3 A catheter 11 is fixedly connected to the rear side of the puncture needle body 1, and the catheter 11 is adapted to the buckle 5. The catheter 11 fixedly connected to the rear side of the puncture needle body 1 is adapted to the buckle 5, allowing the catheter 11 to be stably connected to the buckle 5 on the fixing bar 4, thereby achieving necessary arrangement and limitation of the dialysis pipeline, ensuring smooth flow of blood during dialysis, improving the overall safety and reliability of use, reducing the risk of displacement or falling off of the catheter 11, and ensuring the effect of dialysis treatment.

[0043] See also Figure 1 , Figure 2 and Figure 3The two wing plates 2 are arranged in a mirror image along the center line of the puncture needle body 1, so that the puncture needle body 1 can be fixed on the two wing plates 2 using medical tape. The medical tape has good air permeability, which helps to prevent sweat from accumulating on the skin, so that the adhesion effect can be reliably maintained. At the same time, the two wing plates 2 can improve the stability of the force during the puncture process, making the puncture process more accurate and safe, facilitating the operator to better control the puncture needle, reducing the deviation during the operation, and improving the overall comfort and efficiency of use.

[0044] See also Figure 1 , Figure 2 and Figure 3 There are two section rods 6, both of which are made of elastic material. The use of two section rods 6 made of elastic material increases the adaptability and comfort of the fixator. This design allows the section rods to provide a certain degree of elasticity when fixed, adapting to the wrist or ankle size of different patients, while maintaining a stable support force and reducing discomfort during use. The selection of elastic material ensures that even if worn for a long time, it will not cause excessive pressure on the patient, thereby improving the wearing comfort.

[0045] The implementation principle of the utility model is as follows: first, the puncture needle body 1 is inserted into the patient's blood vessel, and the two sides of the wing plate 2 are attached to the patient's skin with medical tape, and then the clamping rod 3 is clamped to the puncture needle body 1, so that the clamping rod 3 and the fixing strip 4 form a whole, which is convenient for subsequent equipment to provide support for this whole and prevent the puncture needle body 1 from falling out, and then the fixing block 8 at one end of the fixing strip 4 and the sawtooth 10 on the other side of the fixing strip 4 are clamped to each other through the first clamping claw 9, so that the fixing strip 4 can be fixed at the puncture site of the patient. , and then the catheter 11 is snapped into the buckle 5, and the longer catheter 11 is snapped into the other buckles 5 to achieve the arrangement limit of the catheter 11, and then the segment rod 6 is snapped into the buckle 5, so that the wrist ring 7 at one end of the segment rod 6 can clamp the patient's wrist or ankle to provide support and prevent the puncture needle body 1 from falling out. When it needs to be disassembled, first remove the segment rod 6 and the wrist ring 7, and then buckle one end of the fixing strip 4 from the fixing block 8, so that the fixing strip 4 can be released, and the puncture needle body 1 is pulled out to complete the dialysis process.

[0046] Embodiment 2:

[0047] See also Figure 4 A slot 15 is provided on one side of the interior of the fixed block 8, and a second claw 12 is slidably connected to the interior of the slot 15. The slot 15 inside the fixed block 8 is combined with the slidably connected second claw 12 to provide an unlockable locking mechanism, allowing the second claw 12 to be pushed out of the slot 15 as needed, thereby unlocking the sawtooth 10, achieving a quick unlocking operation and improving the nursing efficiency of medical staff.

[0048] See also Figure 4 A sliding rod 13 is fixedly connected to one side of the second claw 12, and a spring 14 is arranged between the sliding rod 13 and the fixed block 8. The combination of the second claw 12, the sliding rod 13 and the spring 14 provides an automatic rebound function for the fixing mechanism, so that the second claw 12 can automatically return to the initial position when released, which simplifies the operation process, improves the convenience and efficiency of use, and ensures the reliability and stability of the fixation, which helps to quickly and accurately unlock the fixing bar 4 and improves the overall operating comfort.

[0049] The implementation principle of the utility model is: first, when disassembly is required, the sliding rod 13 is first pressed so that the sliding rod 13 pushes the second claw 12 into the slot 15 to unlock the serrations 10 on the fixing bar 4, making disassembly more convenient.

[0050] Parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here.

[0051] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A hemodialysis puncture needle, characterized in that: The invention comprises a puncture needle body (1), both sides of which are fixedly connected to wing plates (2), a clamping rod (3) is clamped on the top of the puncture needle body (1), one end of the clamping rod (3) is fixedly connected to a fixing strip (4), a buckle (5) is fixedly connected to the top of the fixing strip (4), a section rod (6) is clamped inside the buckle (5), and one end of the section rod (6) is fixedly connected to a wrist ring (7).

2. The hemodialysis puncture needle according to claim 1, characterized in that: A plurality of the buckles (5) are provided, and the buckles (5) are all circular and are arranged at equal distances.

3. The hemodialysis puncture needle according to claim 1, characterized in that: A fixing block (8) is fixedly connected to one side of the fixing strip (4), and a first clamping claw (9) is fixedly connected inside the fixing block (8).

4. The hemodialysis puncture needle according to claim 1, characterized in that: The other side of the fixing strip (4) is fixedly connected with a saw tooth (10), and a plurality of the saw teeth (10) are provided.

5. The hemodialysis puncture needle according to claim 1, characterized in that: Two clamping rods (3) are provided, and the two clamping rods (3) are arranged in a mirror image along the center line of the puncture needle body (1).

6. The hemodialysis puncture needle according to claim 1, characterized in that: A catheter (11) is fixedly connected to the rear side of the puncture needle body (1), and the catheter (11) is matched with the buckle (5).

7. The hemodialysis puncture needle according to claim 1, characterized in that: The two wing plates (2) are arranged in a mirror image along the center line of the puncture needle body (1).

8. The hemodialysis puncture needle according to claim 1, characterized in that: Two section rods (6) are provided, and the materials of the two section rods (6) are both elastic materials.

9. The hemodialysis puncture needle according to claim 3, characterized in that: A clamping groove (15) is provided on one side of the interior of the fixing block (8), and a second clamping claw (12) is slidably connected inside the clamping groove (15).

10. The hemodialysis puncture needle according to claim 9, characterized in that: A sliding rod (13) is fixedly connected to one side of the second clamping claw (12), and a spring (14) is provided between the sliding rod (13) and the fixed block (8).

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