A disposable electrode catheter assembly

Abstract

The utility model discloses a kind of disposable electrode catheter assemblies, including porous ceramic rod, pagoda clamping head, PU pipe, reference electrode, potassium chloride saturated solution, PVC pipe and PEBA pipe, the head of pagoda clamping head is equipped with limiting end and tail portion is equipped with several elastic clamping pieces, each The elastic clamping piece surrounds and forms porous ceramic rod insertion channel and the outer surface of the elastic clamping piece is equipped with several auxiliary installation end towards head;The porous ceramic rod is inserted into the pagoda clamping head by the porous ceramic rod insertion channel;The tail portion of the pagoda clamping head is surrounded by the one end of the PU pipe and is abutted against the limiting end.The utility model discloses a kind of disposable electrode catheter assemblies, by optimizing structure design and connecting mode, solve the problems, such as process complexity, unstable performance, low degree of product standardization and poor comfort level in the prior art.

Description

Technical Field

[0001] This utility model belongs to the field of medical electrode catheter technology, and specifically relates to a disposable electrode catheter assembly. Background Technology

[0002] Disposable electrode catheters are widely used in medical testing, and their reference electrode at the tip is the core component for realizing solution exchange detection and pH detection. Existing reference electrodes mainly consist of porous ceramics, PU tubing, silver / silver chloride reference electrodes, PVC tubing, PEBA tubing, and a saturated potassium chloride solution. The porous ceramics, as the key sealing and solution exchange component, are bonded to the PU tubing using a traditional dispensing process, after which the porous ceramic tip needs to be manually polished.

[0003] However, existing technical solutions have many drawbacks: First, the dispensing and fixing process is complex and time-consuming, seriously affecting production efficiency; second, during the dispensing process, the adhesive can easily penetrate into the porous ceramic, causing blockage of the pores, which not only reduces the solution exchange rate but also affects the pH detection reaction performance, resulting in poor product performance consistency, and some products may even fail to perform the detection function due to complete pore blockage; third, manually grinding the porous ceramic tip makes it difficult to ensure uniform product shape and standardize the catheter insertion angle, thus affecting the convenience of clinical operation; these problems limit the clinical application effect and production quality of disposable electrode catheters and urgently need improvement. Utility Model Content

[0004] The main objective of this invention is to provide a disposable electrode conduit assembly that solves the problems of complex processes, unstable performance, low product standardization, and poor user comfort in the prior art by optimizing the structural design and connection method.

[0005] To achieve the above objectives, this utility model provides a disposable electrode conduit assembly, comprising a porous ceramic rod, a pagoda-shaped clamping head, a PU tube, a reference electrode, a potassium chloride saturated solution, a PVC tube, and a PEBA tube, wherein: The pagoda gripper head has a limiting end at the head and several elastic clips at the tail. Each elastic clip surrounds and forms a porous ceramic rod insertion channel, and the outer surface of the elastic clip has several auxiliary mounting ends facing the head. The porous ceramic rod is inserted into the pagoda-shaped clamping head through the porous ceramic rod insertion channel; One end of the PU tube is sleeved around the tail of the pagoda clamp and abuts against the limiting end, while the auxiliary installation end abuts against the inner wall of the PU tube; The PVC pipe is built into the other end of the PU pipe to form a sealed space inside the PU pipe between the PVC pipe and the pagoda-shaped clamping head on which the porous ceramic rod is installed; the PEBA pipe is connected to the end of the PVC pipe away from the porous ceramic rod. The reference electrode and the saturated potassium chloride solution are both located in the sealed space. One end of the reference electrode is close to the porous ceramic rod, and the other end of the reference electrode is inserted through the PVC pipe and the PEBA pipe in sequence.

[0006] As a further preferred embodiment of the above technical solution, a gap is provided between adjacent elastic clips.

[0007] As a further preferred embodiment of the above technical solution, the number of elastic clips is 4.

[0008] As a further preferred embodiment of the above technical solution, the surface of the porous ceramic rod is provided with a groove, and the inner wall of the elastic clip is provided with a retaining strip; when inserted, the retaining strip is installed in the retaining groove.

[0009] As a further preferred embodiment of the above technical solution, the size of the PU tube is adapted to the limiting end.

[0010] The beneficial effects of this utility model are as follows: 1. Simplify production process and improve production efficiency: The traditional dispensing and manual polishing processes have been eliminated. The pagoda clamping head is used for structural splicing, which greatly reduces the difficulty of the process and the production time, and helps to achieve large-scale production.

[0011] 2. Ensure stable product performance: Avoids the problem of pore blockage caused by glue seeping into porous ceramics. The diameter and pore size of the porous ceramics remain stable, ensuring the consistency of solution exchange rate, thereby improving the stability of pH detection reaction performance and reducing product scrap rate.

[0012] 3. Improve product standardization: The pagoda-shaped clamp is injection molded, and the fixed structure of the porous ceramic and the pagoda-shaped clamp allows for standardized control of the shape and angle of the catheter insertion end, significantly improving the convenience of clinical operation for doctors. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram (sectional view) of the present invention.

[0014] Figure 2 This is a schematic diagram of the structure of the pagoda-shaped clamping head of this utility model.

[0015] The reference numerals in the attached figures include: 1-porous ceramic, 2-pagoda gripper, 21-limiting end, 22-elastic clip, 23-auxiliary mounting end, 3-PU tube, 4-reference electrode, 5-potassium chloride saturated solution, 6-PVC tube, 7-PEBA tube. Detailed Implementation

[0016] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0017] This utility model discloses a disposable electrode catheter assembly. The specific embodiments of the utility model are further described below with reference to preferred embodiments.

[0018] In the embodiments of this utility model, those skilled in the art will note that PVC and PEBA, etc., involved in this utility model can be regarded as prior art.

[0019] Preferred embodiment.

[0020] like Figure 1-2 As shown, this utility model discloses a disposable electrode conduit assembly, including a porous ceramic rod 1, a pagoda-shaped clamping head 2, a PU tube 3, a reference electrode (silver / silver chloride) 4, a potassium chloride saturated solution 5, a PVC tube 6, and a PEBA (polyether block amide) tube 7, wherein: The pagoda clamping head 2 has a limiting end 21 at the head and several elastic clips 22 at the tail. Each elastic clip 22 surrounds and forms a porous ceramic rod insertion channel, and the outer surface of the elastic clip 22 has several auxiliary mounting ends 23 facing the head. The porous ceramic rod 1 is inserted into the pagoda clamping head 2 through the porous ceramic rod insertion channel (when inserted, the elastic clamping piece is stretched open, so that the porous ceramic rod is tightly clamped, thereby improving the structural stability). One end of the PU tube 3 is sleeved around the tail of the pagoda clamp head 2 and abuts against the limiting end 21. The auxiliary installation end 23 abuts against the inner wall of the PU tube 3 (since the auxiliary installation end faces the head, there is no obstruction when the PU tube is sleeved, but there is greater obstruction when it is pulled out in the opposite direction, thereby improving the connection stability between the PU tube and the pagoda clamp head). The PVC pipe 6 is built into the other end of the PU pipe 3 to form a sealed space inside the PU pipe 3 between the PVC pipe 6 and the pagoda clamp 2 on which the porous ceramic rod 1 is installed; the PEBA pipe is connected to the end of the PVC pipe away from the porous ceramic rod. The reference electrode 4 and the potassium chloride saturated solution 5 are both located in the sealed space. One end of the reference electrode 4 is close to the porous ceramic rod 1, and the other end of the reference electrode 4 is inserted through the PVC pipe 6 and the PEBA pipe 7 in sequence.

[0021] Specifically, a gap is provided between adjacent elastic clips 22.

[0022] More specifically, the number of elastic clips 22 is 4.

[0023] Furthermore, the surface of the porous ceramic rod 1 is provided with a groove (not shown), and the inner wall of the elastic clip 22 is provided with a retaining strip (not shown); when inserted, the retaining strip is installed in the groove (so that the porous ceramic rod is inserted into the pagoda clamp head in an orderly and stable manner and the structural stability is improved).

[0024] Furthermore, the size of the PU tube 3 is adapted to the limiting end 21 (so that there is no step difference and the patient's comfort is improved).

[0025] It is worth mentioning that the technical features of PVC and PEBA involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control methods and spatial arrangement methods of these technical features can be adopted by conventional choices in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated in detail.

[0026] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A disposable electrode catheter assembly, characterized in that, This includes a porous ceramic rod, a pagoda-shaped clamp, a PU tube, a reference electrode, a saturated potassium chloride solution, a PVC tube, and a PEBA tube, among which: The pagoda gripper head has a limiting end at the head and several elastic clips at the tail. Each elastic clip surrounds and forms a porous ceramic rod insertion channel, and the outer surface of the elastic clip has several auxiliary mounting ends facing the head. The porous ceramic rod is inserted into the pagoda-shaped clamping head through the porous ceramic rod insertion channel; One end of the PU tube is sleeved around the tail of the pagoda clamp and abuts against the limiting end, while the auxiliary installation end abuts against the inner wall of the PU tube; The PVC pipe is built into the other end of the PU pipe to form a sealed space inside the PU pipe between the PVC pipe and the pagoda-shaped clamping head on which the porous ceramic rod is installed; the PEBA pipe is connected to the end of the PVC pipe away from the porous ceramic rod. The reference electrode and the potassium chloride saturated solution are both located in the sealed space. One end of the reference electrode is close to the porous ceramic rod, and the other end of the reference electrode is inserted through the PVC pipe and the PEBA pipe in sequence.

2. The disposable electrode catheter assembly according to claim 1, characterized in that, A gap is provided between adjacent elastic clips.

3. The disposable electrode catheter assembly according to claim 1, characterized in that, The number of elastic clips is 4.

4. A disposable electrode catheter assembly according to claim 1, characterized in that, The porous ceramic rod has a groove on its surface, and the inner wall of the elastic clip has a strip; when inserted, the strip is installed in the groove.

5. A disposable electrode catheter assembly according to claim 1, characterized in that, The size of the PU tube is adapted to the limiting end.

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