Improved multifunctional connecting tube for hemodialysis indwelling needle

Abstract

The utility model relates to the technical field of hemodialysis, and discloses an improved hemodialysis indwelling needle multifunctional connecting pipe which comprises a connecting hose, a first pipe wing and a second pipe wing are fixedly installed on the outer side of the connecting hose, a flow stopping clamp is movably connected to the outer side of the connecting hose in a sleeved mode, and a protective cap is arranged below the connecting hose. A remaining needle is movably connected to the top of the connecting hose, an upper connecting opening is fixedly connected to the top of the connecting hose, a first thread is arranged on the outer side of the upper connecting opening, an inner conical connector is fixedly connected to the top of the upper connecting opening, and a lower connecting opening is fixedly connected to the bottom of the connecting hose. A second thread is arranged on the outer side of the lower connector; and by arranging the flow stopping clip, after the indwelling needle punctures and when blood return is finished, the flow stopping clip can be closed, then the artery end of the blood vessel is connected, and then the flow stopping clip is opened, so that the use of hemostatic forceps is avoided, and clinical operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of hemodialysis, and more particularly to an improved multifunctional connecting tube for a hemodialysis indwelling needle. Background Art

[0002] Hemodialysis is the most commonly used renal replacement therapy for patients with end-stage renal disease, and well-functioning vascular access is a prerequisite for hemodialysis treatment. Currently, autologous arteriovenous fistula is the most common type of vascular access for maintenance hemodialysis patients in my country.

[0003] Currently, cannula-type indwelling needles are widely used in hemodialysis puncture, patients with poor vascular conditions, patients who are prone to movement during dialysis, restless and uncooperative patients, critically ill patients, and continuous renal replacement therapy.

[0004] In clinical practice, after cannula puncture, the port of the cannula needs to be clamped with a hemostat first, and then the arterial end of the blood circuit tube is connected. The hemostat can only be released after the connection is completed. If the hemostat is not used properly, it will cause bleeding in the patient, thereby causing medical accidents. In terms of fixation, due to the patient's internal fistula on the side of the limb and the material of the tube, the tape cannot be tightly attached to the blood circuit, which may seriously cause the cannula to slip and leak blood, resulting in adverse events and economic losses to the patient. In addition, the artery connected to the cannula tube is the starting end of blood drawing and has a certain gravity. Long-term compression can easily cause indentations in the patient's blood vessels and skin, which may seriously cause internal fistula occlusion and skin rupture. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an improved multifunctional connecting tube for hemodialysis indwelling needle to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solution: an improved multifunctional connecting tube for hemodialysis indwelling needle, comprising a connecting hose, a first tube wing and a second tube wing being fixedly mounted on the outer side of the connecting hose, a flow stop clamp being movably sleeved on the outer side of the connecting hose, a protective cap being provided below the connecting hose, and an indwelling needle being movably connected to the top of the connecting hose.

[0007] As a preferred technical solution of the present application, the top of the connecting hose is fixedly connected to an upper connecting port, the outer side of the upper connecting port is provided with a first thread, the top of the upper connecting port is fixedly connected to an inner conical joint, the bottom of the connecting hose is fixedly connected to a lower connecting port, and the outer side of the lower connecting port is provided with a second thread.

[0008] As a preferred technical solution of the present application, the indwelling needle includes a needle body, a mounting circular groove is provided at the bottom of the needle body, a third thread is provided on the inner side of the needle body mounting circular groove, and an internal connection port is opened at the top of the needle body mounting circular groove.

[0009] As a preferred technical solution of the present application, the inner diameter of the internal port is matched with the outer diameter tolerance of the inner conical joint.

[0010] As a preferred technical solution of the present application, the protective cap includes a protective connection port, a fourth thread is provided on the inner side of the top of the protective connection port, and a sealing plug is fixedly connected to the interior of the protective connection port.

[0011] As a preferred technical solution of the present application, a movable groove is provided at the bottom of the protective connection port, and pillars are fixedly connected to the front and back sides of the movable groove. A movable ring is movably sleeved on the outer side of the pillar, and a handle is fixedly connected to the other side of the movable ring.

[0012] As a preferred technical solution of the present application, the shape and size of the fourth thread match the shape and size tolerance of the second thread, and the shape and size of the first thread match the shape and size tolerance of the third thread.

[0013] The technical effects and advantages of this utility model are:

[0014] 1. The utility model is provided with a hemostatic clamp. After the indwelling needle is punctured and the blood return is completed, the hemostatic clamp can be closed, the arterial end of the blood vessel is connected, and then the hemostatic clamp is opened, thereby avoiding the use of hemostatic forceps and facilitating clinical operation.

[0015] 2. The utility model is provided with a connecting hose, so when the pipeline is fixed, no matter where the fistula is in the limb, the tape can be firmly combined with the pipeline and the patient's limb, and the patient will not have indentations on the skin due to long-term dialysis.

[0016] 3. The utility model is provided with a protective cap. The protective connection port is rotated by pulling the handle to cover the end of the pipeline. The protective connection port is connected to the end of the pipeline connected to the lower connection port, and the end of the pipeline is blocked with a sealing plug to improve the sealing performance, close the pipeline, and prevent the pipeline from being contaminated by the outside world. A handle is provided to assist the protective cap in sealing and disassembly, making the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a partial structural diagram of the utility model.

[0019] Figure 3 This is a schematic diagram of the protective cap structure of the present utility model.

[0020] Figure 4 This is a schematic structural diagram of the protective cap portion of the present utility model.

[0021] Figure 5This is a schematic structural diagram of the indwelling needle of the present utility model.

[0022] The accompanying drawings are:

[0023] 1. Connecting hose; 2. Upper connecting port; 3. First thread; 4. Inner conical joint; 5. First tube wing; 6. Second tube wing; 7. Lower connecting port; 8. Second thread; 9. Stop clamp; 10. Protective cap; 1001. Protective connecting port; 1002. Sealing plug; 1003. Movable groove; 1004. Support; 1005. Handle; 1006. Fourth thread; 1007. Movable ring; 11. Indwelling needle; 1101. Needle body; 1102. Third thread; 1103. Internal connection port. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The improved hemodialysis indwelling needle multifunctional connecting tube involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Reference Figures 1 to 5 The utility model provides an improved multifunctional connecting tube for hemodialysis indwelling needle, comprising a connecting hose 1, a first tube wing 5 and a second tube wing 6 being fixedly mounted on the outer side of the connecting hose 1, a flow-stop clamp 9 being movably sleeved on the outer side of the connecting hose 1, a protective cap 10 being provided at the bottom of the connecting hose 1, and an indwelling needle 11 being movably connected to the top of the connecting hose 1; by providing the flow-stop clamp 9, after the indwelling needle puncture and the end of blood return, the flow-stop clamp 9 can be closed, the arterial end of the blood vessel can be connected, and then the flow-stop clamp 9 can be opened, thereby avoiding the use of hemostatic forceps and facilitating clinical operation.

[0026] In a preferred embodiment, the top of the connecting hose 1 is fixedly connected to an upper connecting port 2, the outer side of the upper connecting port 2 is provided with a first thread 3, the top of the upper connecting port 2 is fixedly connected to an inner conical joint 4, the bottom of the connecting hose 1 is fixedly connected to a lower connecting port 7, and the outer side of the lower connecting port 7 is provided with a second thread 8; by providing the connecting hose 1, when the pipeline is fixed, no matter where the fistula is in the limb, the tape can be firmly combined with the pipeline and the patient's limb, and the patient will not have indentations on the skin due to long-term dialysis.

[0027] In a preferred embodiment, the indwelling needle 11 includes a needle body 1101, a mounting groove is provided at the bottom of the needle body 1101, a third thread 1102 is provided on the inner side of the mounting groove of the needle body 1101, and an internal connection port 1103 is opened at the top of the mounting groove of the needle body 1101.

[0028] In a preferred embodiment, the inner diameter of the internal connection port 1103 is matched with the outer diameter of the inner conical joint 4 in tolerance.

[0029] In a preferred embodiment, the protective cap 10 includes a protective connection port 1001 , a fourth thread 1006 is formed on the inner side of the top of the protective connection port 1001 , and a sealing plug 1002 is fixedly connected to the interior of the protective connection port 1001 .

[0030] In a preferred embodiment, a movable groove 1003 is provided at the bottom of the protective connection port 1001, and the front and back sides of the movable groove 1003 are fixedly connected to pillars 1004, and a movable ring 1007 is movably sleeved on the outer side of the pillar 1004, and a handle 1005 is fixedly connected to the other side of the movable ring 1007; by providing a protective cap 10, the protective connection port 1001 is rotated by pulling the handle 1005 to cover the end of the pipeline, and the end of the pipeline connected to the lower connection port 7 through the protective connection port 1001 is connected, and the end of the pipeline is blocked with a sealing plug 1002 to improve the sealing performance, close the pipeline, and prevent the pipeline from being contaminated by the outside world, and the handle 1005 is provided to assist the protective cap 10 in sealing and disassembly, so that the operation is more convenient.

[0031] In a preferred embodiment, the shape and size of the fourth thread 1006 match the shape and size tolerance of the second thread 8 , and the shape and size of the first thread 3 match the shape and size tolerance of the third thread 1102 .

[0032] The working principle of the present invention is as follows: when using this device, the upper connecting port 2 is first connected to the bottom of the needle body 1101 through the first thread 3 and the third thread 1102, wherein the inner conical joint 4 is inserted into the inner connecting port 1103 for circulation, and the lower connecting port 7 is connected to the starting end of the pipeline artery through the second thread 8. The flow stop clamp 9 and the protective cap 10 are clamped before blood drawing and after blood return, and the handle 1005 is turned to make the movable ring 1007 rotate around the pillar 1004 to expose the handle 1005. The protective connecting port 1001 is rotated by pulling the handle 1005 to cover the end of the pipeline, and the end of the pipeline connected to the lower connecting port 7 through the protective connecting port 1001 is connected, and the end of the pipeline is blocked with the sealing plug 1002 to close the pipeline to prevent the pipeline from being contaminated by the outside world. When the pipeline is fixed, no matter where the fistula is in the limb, the tape can be firmly combined with the pipeline and the patient's limb, and the patient will not have indentations on the skin due to long-term dialysis.

[0033] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0034] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0035] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An improved multifunctional connecting tube for hemodialysis indwelling needle, characterized by: The invention comprises a connecting hose (1), wherein a first tube wing (5) and a second tube wing (6) are fixedly mounted on the outer side of the connecting hose (1), a flow stop clamp (9) is movably sleeved on the outer side of the connecting hose (1), a protective cap (10) is provided below the connecting hose (1), and an indwelling needle (11) is movably connected to the top of the connecting hose (1).

2. The improved multifunctional connecting tube for hemodialysis indwelling needle according to claim 1, characterized in that: The top of the connecting hose (1) is fixedly connected to an upper connecting port (2), the outer side of the upper connecting port (2) is provided with a first thread (3), the top of the upper connecting port (2) is fixedly connected to an inner conical joint (4), the bottom of the connecting hose (1) is fixedly connected to a lower connecting port (7), the outer side of the lower connecting port (7) is provided with a second thread (8).

3. The improved multifunctional connecting tube for hemodialysis indwelling needle according to claim 2, characterized in that: The indwelling needle (11) comprises a needle body (1101), a mounting circular groove is provided at the bottom of the needle body (1101), a third thread (1102) is provided on the inner side of the mounting circular groove of the needle body (1101), and an internal connection port (1103) is provided at the top of the mounting circular groove of the needle body (1101).

4. The improved multifunctional connecting tube for hemodialysis indwelling needle according to claim 3, characterized in that: The inner diameter of the internal connection port (1103) is matched with the outer diameter tolerance of the inner conical joint (4).

5. The improved multifunctional connecting tube for hemodialysis indwelling needle according to claim 4, characterized in that: The protective cap (10) comprises a protective connection port (1001), a fourth thread (1006) is provided on the inner side of the top of the protective connection port (1001), and a sealing plug (1002) is fixedly connected to the interior of the protective connection port (1001).

6. The improved multifunctional connecting tube for hemodialysis indwelling needle according to claim 5, characterized in that: A movable groove (1003) is provided at the bottom of the protective connection port (1001), and pillars (1004) are fixedly connected to the front and back sides of the movable groove (1003). A movable ring (1007) is movably sleeved on the outer side of the pillar (1004), and a handle (1005) is fixedly connected to the other side of the movable ring (1007).

7. The improved multifunctional connecting tube for hemodialysis indwelling needle according to claim 6, characterized in that: The shape and size of the fourth thread (1006) match the shape and size tolerance of the second thread (8), and the shape and size of the first thread (3) match the shape and size tolerance of the third thread (1102).

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