A transcutaneous oxygen partial pressure sensor fixation ring

Abstract

The utility model discloses a kind of transdermal oxygen partial pressure sensor fixing ring, including bush, oxygen-permeable membrane, gasket, metal protective sheet, fixed ring upper body and fixed ring lower body, the fixed ring upper body inner end face is designed with the thread for assembling with transdermal oxygen partial pressure sensor, bush, oxygen-permeable membrane, gasket, metal protective sheet are assembled in fixed body interior, gasket end face is equipped with the annular circular groove matched with the boss on bush.This utility model patent solves the problem that fixed ring is frequently replaced in original technical scheme, oxygen-permeable membrane is easily damaged, not easy to operate in assembly process.After the design improvement of utility model, the use replacement of transdermal oxygen partial pressure sensor fixing ring is more convenient, assembly process is simpler and more easy to operate, the oxygen-permeable membrane inside transdermal oxygen partial pressure sensor fixing ring is designed with protection function, ensure the safety when equipment works, improve the convenience, safety, stability of transdermal oxygen partial pressure sensor fixing ring, also improve various effects when fixed ring assembly is used.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to a fixing ring for a transdermal oxygen partial pressure sensor. Background Technology

[0002] Transcutaneous partial pressure of oxygen (TcPO2) monitoring is a non-invasive method for detecting tissue oxygenation status and is widely used in clinical practice. It requires the use of a transcutaneous partial pressure of oxygen fixation ring. The sensor operates through an oxygen-permeable membrane, which is a crucial component of the fixation ring. After installation, the membrane must completely cover the sensor's electrode area. During use, a double-sided medical adhesive ring is attached to the bottom of the fixation ring and secured to the patient's skin.

[0003] In the original design of the transcutaneous oxygen partial pressure sensor retaining ring, it consisted of a retaining ring body, an O-ring seal, and an oxygen-permeable membrane. Assembly required manually pressing the O-ring seal, oxygen-permeable membrane, and retaining ring body together in sequence, while ensuring concentricity of all three components. This assembly process was difficult. Furthermore, the oxygen-permeable membrane lacked protection, making it susceptible to damage from foreign objects, which could affect the accuracy of the detection data.

[0004] The retaining ring needs to be replaced after each use of the equipment, making it unusable. To address this, the design of the retaining ring addresses the issues of cumbersome assembly, oxygen permeability membrane protection, and reusability of the transcutaneous oxygen partial pressure sensor. The retaining ring is designed as a separate structure. The upper part of the retaining ring is threaded to the sensor, while the lower part, used as a disposable consumable, is attached to the upper part via a snap-fit ​​connection. Existing retaining rings are difficult to install; operators must align the ring with the center hole and press it in, a method that easily damages or detaches the oxygen permeability membrane. Furthermore, the membrane lacks protective measures and is prone to breakage during use. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this application proposes a percutaneous oxygen partial pressure sensor fixing ring to solve the problems existing in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A transcutaneous oxygen partial pressure sensor fixing ring includes a bushing, an oxygen-permeable membrane, a sealing gasket, a metal protective sheet, an upper fixing ring body, and a lower fixing ring body. The inner end face of the upper fixing ring body is designed with threads for assembly with the transcutaneous oxygen partial pressure sensor. The bushing, oxygen-permeable membrane, sealing gasket, and metal protective sheet are assembled inside the fixing ring body. The end face of the sealing gasket is provided with an annular groove that mates with a boss on the bushing. The oxygen-permeable membrane is sandwiched between the bushing and the sealing gasket. The upper fixing ring body and the lower fixing ring body are assembled using an annular snap-fit ​​structure.

[0008] As a further technical solution of this utility model: the lower body of the fixing ring is fixed to the double-sided medical adhesive ring by medical-grade 3M adhesive.

[0009] As a further technical solution of this utility model: the metal protective sheet is made of brass and has an opening in the center.

[0010] As a further technical solution of this utility model: during assembly, the metal protective sheet, sealing gasket, oxygen-permeable membrane, and bushing are placed into the upper body of the fixing ring in sequence.

[0011] As a further technical solution of this utility model: the sealing gasket is made of high-density silicone.

[0012] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0013] This utility model adopts the above solution.

[0014] 1. This utility model patent adopts a split structure, that is, the transcutaneous oxygen partial pressure sensor fixing ring is divided into upper and lower parts. The upper part is a reusable structure, and the lower part is used as a consumable in conjunction with a double-sided medical rubber ring. The upper part of the transcutaneous oxygen partial pressure sensor fixing ring is assembled by a spin-pressed sealing gasket, and the components inside the upper part of the transcutaneous oxygen partial pressure sensor fixing ring are tightly assembled through threaded connection, achieving ideal working conditions. At the same time, a metal protective sheet is designed for the exposed oxygen permeable membrane to prevent damage from foreign objects during use, which would cause inaccurate detection data.

[0015] 2. This utility model patent solves the problems of frequent replacement of the fixing ring, easy damage to the oxygen permeable membrane, and difficulty in operation during assembly in the original technical solution. After the design improvement of the utility model, the use and replacement of the fixing ring of the transcutaneous oxygen partial pressure sensor is more convenient, the assembly process is simpler and easier to operate, and the oxygen permeable membrane inside the fixing ring of the transcutaneous oxygen partial pressure sensor is designed with a protective function to ensure the safety of the equipment during operation. It improves the convenience, safety, and stability of the fixing ring of the transcutaneous oxygen partial pressure sensor, and also improves the various effects of the fixing ring during assembly and use. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the present invention.

[0017] Figure 2 This is an exploded view of this utility model.

[0018] Figure 3 This is a cross-sectional view of the present invention.

[0019] Figure 4 This is a schematic diagram of the components during assembly.

[0020] 1-Transcutaneous oxygen partial pressure sensor, 2-Bushing, 3-Oxygen-permeable membrane, 4-Sealing gasket, 5-Metal protective sheet, 6-Upper body of fixing ring, 7-Lower body of fixing ring, 8-Double-sided medical adhesive ring. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Example 1, such as Figure 1-4 As shown, a transcutaneous oxygen partial pressure sensor fixing ring includes a bushing 2, an oxygen-permeable membrane 3, a sealing gasket 4, a metal protective sheet 5, an upper fixing ring body 6, a lower fixing ring body 7, and a double-sided medical adhesive ring 8. This design divides the transcutaneous oxygen partial pressure sensor fixing ring into upper and lower body structures. The upper fixing ring body is designed as a reusable medical product, including the bushing 2, oxygen-permeable membrane 3, sealing gasket 4, metal protective sheet 5, upper fixing ring body 6, lower fixing ring body 7, and double-sided medical adhesive ring 8. The inner end face of the upper fixing ring body 6 is threaded for assembly with the transcutaneous oxygen partial pressure sensor. The bushing 2, oxygen-permeable membrane 3, sealing gasket 4, and metal protective sheet 5 are assembled inside the fixed upper fixing ring body 6. The lower fixing ring body 7 and the double-sided medical adhesive ring 8 are used as disposable consumables.

[0023] like Figure 2 As shown: During assembly, the metal protective sheet 5, sealing gasket 4, oxygen-permeable membrane 3, and bushing 2 are sequentially placed inside the upper body 6 of the fixing ring. The metal protective sheet 5 is made of brass and has an opening in the center to provide protection while also providing working conditions for the transcutaneous oxygen partial pressure sensor to collect data. A process seam is designed at the edge to provide plastic deformation for the overall structure assembly, avoiding excessive assembly resistance between components during installation. The sealing gasket 4 is made of high-density silicone, and an annular groove is designed at its end face to cooperate with the boss on the bushing 2, sandwiching the oxygen-permeable membrane 3 in the middle to achieve a sealing effect. After assembly, as shown... Figure 3As shown in the cross-sectional view: the oxygen-permeable membrane 3 is sandwiched between the bushing 2 and the sealing gasket 4. During assembly, the percutaneous oxygen partial pressure sensor 1 and the fixing ring are connected by threads. The oxygen-permeable membrane 3 covers the main structure of the percutaneous oxygen partial pressure sensor, which can meet the working conditions of the percutaneous oxygen partial pressure sensor 1.

[0024] The double-sided medical adhesive ring 8 and the lower body of the fixing ring 7 are fixed with medical-grade 3M adhesive. The upper body of the fixing ring 6 and the upper body of the fixing ring 7 are designed with a ring-shaped buckle structure for assembly. After the patient finishes using the equipment, only the double-sided medical adhesive ring 8 and the lower body of the fixing ring 7 need to be replaced, which makes the use of the medical equipment more convenient and efficient, greatly improves the working efficiency of the medical equipment, and reduces the workload of medical staff.

[0025] Of course, threaded connections or other fixing methods can also be used to fix the upper body 6 and the lower body 7 of the fixing ring, as long as the requirements of easy replacement and firm assembly are met.

[0026] like Figure 4 The diagram shows the components during assembly. The electrode of the transcutaneous oxygen partial pressure sensor 1 first contacts the oxygen-permeable membrane 3. Through the threads of the transcutaneous oxygen partial pressure sensor 1 and the upper body 6 of the fixing ring, a continuous downward pressure causes the transcutaneous oxygen partial pressure sensor 1 to continuously deform the metal protective sheet 5. The silicone pad 4 and the bushing 2 provide a sealed environment for the electrode of the transcutaneous oxygen partial pressure sensor 1.

[0027] In this utility model patent, by designing the transcutaneous oxygen partial pressure sensor fixing ring as a split structure, the problem of the transcutaneous oxygen partial pressure sensor fixing ring not being reusable is effectively solved. That is, instead of frequently replacing the diaphragm, only the lower body 7 of the fixing ring and the double-sided medical adhesive ring 8 need to be replaced, which greatly reduces the workload of medical staff and improves the efficiency of product use, providing a better user experience for patients.

[0028] In this utility model patent, adding a metal protective sheet 5 to the upper body 6 of the fixing ring can protect the oxygen-permeable membrane 3. The edge of the metal protective sheet 5 is designed with serrated grooves, which can release the resistance during assembly and achieve a good protective effect. Compared with the original design, the oxygen-permeable membrane is often easily scratched during use, causing air to mix in and affecting the accuracy of the detection data.

[0029] In this utility model patent, a structure of bushing 2, oxygen-permeable membrane 3, and sealing gasket 4 is designed. By designing the groove structure of bushing 2 and sealing gasket 4, the oxygen-permeable membrane 3 can be tightly compressed. When the transdermal oxygen partial pressure sensor electrode 1 passes through the oxygen-permeable membrane 3, it can provide a good sealing effect, provide working conditions for the transdermal oxygen partial pressure sensor 1, and ensure that the equipment can work normally.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment have been appropriately combined to form other embodiments that are easy for those skilled in the art to understand.

Claims

1. A percutaneous oxygen partial pressure sensor fixing ring, comprising a bushing (2), an oxygen-permeable membrane (3), a sealing gasket (4), a metal protective sheet (5), an upper fixing ring body (6), and a lower fixing ring body (7), characterized in that: The inner end face of the upper body (6) of the fixed ring is designed with threads for assembly with the transcutaneous oxygen partial pressure sensor. The bushing (2), oxygen permeable membrane (3), sealing gasket (4), and metal protective sheet (5) are assembled inside the upper body (6). The end face of the sealing gasket (4) is provided with an annular groove that matches the boss on the bushing (2). The oxygen permeable membrane (3) is sandwiched between the bushing (2) and the sealing gasket (4). The upper body (6) and the lower body (7) of the fixed ring are assembled using an annular snap-fit ​​structure.

2. The percutaneous oxygen partial pressure sensor fixing ring according to claim 1, characterized in that, The lower part of the fixing ring (7) and the double-sided medical adhesive ring (8) are fixed with medical-grade 3M adhesive.

3. The percutaneous oxygen partial pressure sensor fixing ring according to claim 1, characterized in that, The metal protective sheet (5) is made of brass and has an opening in the center.

4. A transcutaneous oxygen partial pressure sensor fixing ring according to claim 1, characterized in that, During assembly, the metal protective sheet (5), sealing gasket (4), oxygen-permeable membrane (3), and bushing (2) are placed into the upper body (6) of the fixing ring in sequence.

5. A transcutaneous oxygen partial pressure sensor fixing ring according to claim 1, characterized in that, The sealing gasket (4) is made of high-density silicone.

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