Retention assembly

Abstract

The utility model discloses an indwelling component, which is used for applying force through the action of a needle assisting component so as to be fixed on a bottom plate and complete subcutaneous puncture simultaneously, and comprises a needle seat, the needle seat is a fixed carrier and is provided with a sealing cavity, and a sealing component is arranged in the sealing cavity; the indwelling soft needle is installed at the bottom of the needle base, one end of the indwelling soft needle is in butt joint with the sealing cavity, and the other end of the indwelling soft needle extends out of the needle base; the monitoring probe is provided with a monitoring end, and the monitoring end is arranged in the sealing cavity of the needle seat in a penetrating mode and arranged in the indwelling soft needle. The device is simple in overall structure and convenient to disassemble, assemble and use; the indwelling assembly and the bottom plate are in interference fit, connection is reliable, good sealing performance is achieved, and real-time monitoring of blood glucose is achieved in the mode that a monitoring probe is implanted into the indwelling assembly and the bottom plate.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to an indwelling component. Background Art

[0002] Diabetes is a chronic metabolic disease characterized by persistently high blood sugar levels. Patients usually need to monitor their blood sugar regularly to ensure that their blood sugar levels are within the target range. In response to this situation, the artificial external pancreas, as a modern medical device, provides diabetic patients with a more precise and continuous blood sugar control solution.

[0003] Traditional blood sugar management requires patients to perform manual blood sugar measurements and insulin injections multiple times, which is inconvenient and may lead to blood sugar fluctuations, increasing the risk of hypoglycemia and hyperglycemia.

[0004] In order to reduce the pain and risk of multiple punctures for diabetic patients, the indwelling component, as a short-term subcutaneous device, can achieve continuous delivery of insulin to the patient's body, which not only simplifies the blood sugar management process, but also ensures a continuous supply of insulin.

[0005] The indwelling component needs to be connected to the base plate or delivery device outside the body. To ensure the continuous and stable delivery of insulin and avoid external contamination and drug leakage, the connection between the indwelling component and the base plate must be tight, stable and waterproof. Traditional connection methods may have problems such as poor sealing and unstable connection, which may not only affect the effect of drug delivery, but also cause additional risks to patients.

[0006] Although there are a variety of connection solutions for indwelling components and base plates on the market, these solutions often cannot fully meet the needs of diabetic patients for continuous, stable and safe insulin delivery. Therefore, developing a new, efficient and safe connection solution is of great significance for improving the management of diabetes. Utility Model Content

[0007] In order to solve the above problems, the utility model provides a retention component, which can effectively solve the deficiencies in the prior art.

[0008] The utility model is realized by the following technical scheme: a retention component, comprising:

[0009] The needle seat is a fixed carrier having a sealing cavity in which a sealing assembly is installed;

[0010] An indwelling soft needle, wherein the indwelling soft needle is installed at the bottom of the needle seat, one end of the indwelling soft needle is connected to the sealing cavity, and the other end of the indwelling soft needle extends out of the needle seat;

[0011] A monitoring probe is provided with a monitoring end, wherein the monitoring end is passed through the sealing cavity of the needle seat and is arranged inside the indwelling soft needle.

[0012] Preferably, the sealing assembly comprises:

[0013] A rubber plug and a plug cover, wherein the rubber plug and the plug cover are installed at the top opening position of the needle seat, and the plug cover is pressed against the connection between the needle seat and the rubber plug, so that the sealed cavity is formed in the needle seat, and the monitoring end of the monitoring probe passes through the plug cover and extends downward.

[0014] Preferably, an opening is provided on the plug cover, and the monitoring end of the monitoring probe passes through the opening and extends downward.

[0015] Preferably, the monitoring probe further has a fixed end, and the monitoring probe is fixedly mounted on the needle seat via the fixed end.

[0016] Preferably, a fixed installation position is provided outside the needle seat, and the monitoring probe is installed on the fixed installation position of the needle seat through the fixed end;

[0017] A positioning pin is provided on the fixed installation position, and a corresponding positioning hole is provided on the fixed end, or a positioning hole is provided on the fixed installation position, and a corresponding positioning pin is provided on the fixed end;

[0018] Wherein, the fixed end and the fixed installation position are fixed by glue spotting.

[0019] Preferably, the needle seat is fixed on a base plate, wherein a positioning and mounting structure is provided at the bottom of the base plate, and the needle seat can be fixedly mounted on the positioning and mounting structure and extend out of the base plate.

[0020] Preferably, the needle seat and the positioning and mounting structure adopt a snap-fit ​​manner, wherein a snap slot is provided on the base plate, and a corresponding snap is provided on the needle seat, or a snap is provided on the base plate, and a corresponding snap slot is provided on the needle seat.

[0021] Preferably, the needle seat and the positioning and mounting structure are connected by interference fit.

[0022] Preferably, it further comprises a guide member, which is installed in the sealed cavity of the needle seat, and the bottom of the guide member is butted against one end of the indwelling soft needle.

[0023] Preferably, the guide member is a guide bucket having a guide opening of a trumpet-shaped opening, and the guide member is a metal guide bucket.

[0024] The beneficial effects of the utility model are as follows: the utility model can realize real-time monitoring of blood sugar of diabetic patients by implanting a monitoring probe in the indwelling component, which not only reduces the frequent manual blood sugar measurement of patients, but also can more accurately grasp the blood sugar dynamics of patients, providing a basis for individualized insulin regulation;

[0025] The retention component and the base plate are fitted with an interference fit to ensure the stability of the connection between the two. In addition, this connection method also has good sealing properties, which can effectively prevent drug leakage or external contamination and ensure safe drug delivery;

[0026] The retention component of this patent has a simple structure and can be easily disassembled and assembled by the user, which provides convenience for patients to replace the retention component on a daily basis, while also reducing the risk during the replacement process; because the retention component is designed to be placed subcutaneously for a long time, the patient does not need frequent punctures, thereby reducing the risk of infection and pain and enhancing the patient's comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the structure of the retention component;

[0029] Figure 2 An exploded view of the retained component;

[0030] Figure 3 is a cross-sectional view of a retention component;

[0031] Figure 4 is a schematic diagram of the structure of the base plate;

[0032] Figure 5 Assembly drawings for retention components and base plates;

[0033] Figure 6 It is a cross-sectional view after the retention component and the base plate are assembled;

[0034] Description of reference numerals:

[0035] 1. Needle holder;

[0036] 2. Guide parts;

[0037] 3. Indwelling soft needle;

[0038] 4. Rubber plug;

[0039] 5. Plug cover;

[0040] 51. Open your mouth;

[0041] 6. Monitoring probe;

[0042] 61. Monitoring terminal;

[0043] 62. Fixed end;

[0044] 100. Retention components;

[0045] 200, bottom plate;

[0046] 210. Positioning and mounting structure. DETAILED DESCRIPTION

[0047] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0048] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0049] like Figure 1 As shown, a retention component 100 of the utility model is used to apply force through the needle-assisting component to fix on the base plate 200 and complete subcutaneous puncture at the same time, and then the retention component 100 is always kept under the human skin, after the medicine box, host component and other components are installed, so as to facilitate long-term real-time blood sugar monitoring and insulin injection. The retention component 100 includes a needle seat 1, which is a fixed carrier and has a sealed cavity. The sealing component is installed in the sealed cavity. The needle seat 1 can be of any shape and can be fixedly installed on the base plate 200. The needle seat 1 serves as a carrier, and other structural parts of the retention component 100 can be set on the needle seat 1;

[0050] In order to be able to be retained in the human blood, monitor the human blood sugar at all times, and deliver insulin at a fixed time and quantity according to the real-time blood sugar value, in this embodiment, the retention component 100 also includes a retention soft needle 3, and the retention soft needle 3 has an injection channel for insulin. After the medicine box and the main unit component are installed on the bottom plate 200, the injection channel in the retention soft needle 3 is connected to the medicine outlet of the medicine box, so that the insulin liquid in the medicine box can be delivered through the injection channel. Among them, the size and thickness of the retention soft needle 3 can be selected arbitrarily, but there should be enough internal space to install the monitoring end 61 of the monitoring probe 6. The retention soft needle 3 is installed at the bottom of the needle seat 1, and the bottom protruding end thereof is a sharp point, which can puncture the skin and be retained in the human body. One end of the retention soft needle 3 is connected to the sealed cavity, and the other end protrudes from the outside of the needle seat 1, which is used for subcutaneous puncture and implanted into the human blood.

[0051] Furthermore, in this embodiment, the retention component 100 further includes a monitoring probe 6, and the monitoring probe 6 has a monitoring end 61, such as Figure 2 As shown, the monitoring end 61 is arranged in the sealed cavity of the needle seat 1 and is arranged inside the indwelling soft needle 3. The monitoring probe 6 can be arranged on the outer wall of the injection channel pipe, such as Figure 3 As shown, the monitoring end 61 is an end with a monitoring sensor, which can be any sensor that can monitor the blood sugar level of the human body. It extends into the indwelling soft needle 3. Since the indwelling soft needle 3 needs to be implanted subcutaneously in the human body and in real-time contact with the human blood, as long as the indwelling soft needle 3 is located inside the human blood, the monitoring probe 6 can be in real-time contact with the human blood. In this way, the blood sugar level in the human body can be monitored in real time, which is very convenient. The results of real-time blood sugar monitoring can be fed back to the host component. According to the blood sugar level, the host component controls the movement of the piston in the medicine box to inject insulin at a fixed time and quantity.

[0052] Furthermore, in order to better fix the monitoring probe 6 on the needle seat 1, in this embodiment, the monitoring probe 6 has a fixed end 62, and the monitoring probe 6 is fixed to the needle seat 1 via the fixed end 62, and the two can be fixed by screws, snaps, glue, etc.

[0053] Specifically, in this embodiment, a fixed installation position is provided on the outside of the needle seat 1, and the monitoring probe 6 is installed on the fixed installation position on the outside of the needle seat 1 through the fixed end 62, and a positioning pin can be provided on the fixed installation position, and a corresponding positioning hole is provided on the fixed end 62. Therefore, when the monitoring probe 6 is installed on the needle seat 1, the positioning pin is inserted into the positioning hole, and glue is applied to fix it at the positioning position to complete the fixation of the monitoring probe 6 and the needle seat 1. Since the positioning assembly of the two can be completed by aligning the positioning pin with the positioning hole, and finally glue is applied to fix it, the fixation is simple, there will be no problem of falling off, and the fixing method is also more convenient. Among them, four-point positioning is adopted in this embodiment, and the monitoring probe 6 is more stable after being positioned at the fixed installation position of the fixed end 62 and the needle seat 1, and it is less likely to fall off. Of course, three-point positioning or two-point positioning can also be adopted. Four-point positioning is listed in this embodiment. In addition, if a screw fixing method is adopted, medical grade stainless steel screws can be used.

[0054] In this embodiment, the sealing assembly includes a rubber plug 4 and a plug cover 5. The rubber plug 4 and the plug cover 5 are installed at the top opening of the needle seat 1. The rubber plug 4 is sealed and installed in the needle seat 1, and the plug cover 5 is pressed against the connection between the needle seat 1 and the rubber plug 4, so that a sealed cavity is formed in the needle seat 1. The monitoring end 61 of the monitoring probe 6 passes through the plug cover 5 and extends downward. The rubber plug 4 and the plug cover 5 are assembled as shown in FIG. Figure 3 As shown, the rubber plug 4 is installed upward from the bottom of the plug cover 5, the plug cover 5 has a circular opening, and the rubber plug 4 has a plug part, so the rubber plug 4 buckles the plug part into the circular opening from bottom to top, and the plug cover 5 can be stretched open to press it against the inner wall of the sealed cavity. In this embodiment, the cross-section of the rubber plug 4 is T-shaped, and the rubber plug 4 and the plug cover 5 can be tightly fixed in the sealed cavity after being assembled with each other. The plug cover 5 and the needle seat 1 are assembled, and the rubber plug 4 is pressed at the same time, and the overall installation is very reliable;

[0055] It should be noted that, in the present embodiment, the assisting needle of the assisting needle assembly can pierce the rubber plug 4 to form an assisting needle system. Through the force applied by the assisting needle device, the indwelling soft needle 3 can pierce the subcutaneous tissue while the indwelling assembly 100 is firmly connected to the base plate 200. Then the assisting needle is withdrawn, and the indwelling assembly 100 always remains under the skin of the human body. After installing the medicine box, main unit assembly and other components, the injection needle of the medicine box passes through the rubber plug 4 to connect with the injection channel. The rubber plug 4 can achieve a good squeezing effect on the injection needle, thereby ensuring the sealing between the medicine box and the indwelling assembly 100, thereby effectively avoiding the leakage of insulin solution. The good sealing between the medicine box and the indwelling assembly 100 helps to ensure the continuity and stability of the insulin solution transmission process.

[0056] In this embodiment, the indwelling assembly 100 further includes a guide member 2, which is installed in the sealed cavity of the needle seat 1, and is located below the rubber plug 4. The bottom of the guide member 2 is butted against one end of the indwelling soft needle 3, and the guide member 2 plays a guiding role during puncture, while avoiding puncturing the plastic needle seat 1 during the puncture process, and completing the butt connection between the two. The structure of the guide member 2 is as follows: Figure 2 As shown;

[0057] Specifically, in the present embodiment, the guide member 2 adopts a guide bucket having a guide opening with a trumpet opening and is funnel-shaped as a whole, so that the injection needle of the medicine box can smoothly enter the needle seat 1 to achieve the purpose of guidance, and the guide member 2 is made of metal material, that is, the guide member 2 is a metal guide bucket, so that the strength can be increased, and the service life of the guide member 2 and even the retention component 100 can be improved, which can effectively prevent the expression of the guide member 2 from being damaged during puncture, thereby achieving a better protection effect.

[0058] In order to facilitate the monitoring end 61 of the monitoring probe 6 to extend into the indwelling soft needle 3 and achieve the purpose of avoiding the position, in this embodiment, an opening 51 is set on the plug cover 5, and the monitoring end 61 of the monitoring probe 6 passes through the opening 51 and extends downward into the indwelling soft needle 3.

[0059] like Figure 4 and Figure 5 As shown, the needle seat 1 is fixed on the base plate 200, wherein the bottom of the base plate 200 has a through hole and a positioning and mounting structure 210 extending upward from the through hole wall, and the needle seat 1 can be fixedly mounted on the positioning and mounting structure 210 and extend out of the base plate 200. The base plate 200 in this embodiment can be used to install some medicine boxes, host components and other components to form the entire artificial extracorporeal pancreas device. Since the entire retention component 100 is fixed on the base plate 200, after the medicine box, host component and other components are installed, the retention soft needle 3 is kept retained under the human skin, so as to realize continuous measurement of blood sugar levels in the human body and timely and quantitative infusion of insulin to the human body, and the amount of insulin injection is controlled by the host component.

[0060] In this embodiment, Figure 3 and Figure 6 As shown, the needle seat 1 and the positioning and mounting structure 210 adopt a buckle method, that is, buckles and slots are respectively set on the bottom plate 200 and the needle seat 1. For example, a slot is set on the needle seat 1, and a corresponding buckle is set on the bottom plate 200, so that the two can be assembled and locked. The structure is very simple and the installation is very convenient. Of course, buckles can also be set on the needle seat 1, and corresponding slots can be set on the bottom plate 200, and the buckle and slot assembly and locking of the two can also be completed.

[0061] Furthermore, in order to further enhance the assembly strength between the needle seat 1 and the positioning and mounting structure 210, in the present embodiment, the needle seat 1 and the positioning and mounting structure 210 are connected by interference fit, so that the two can be assembled more firmly and effectively prevented from loosening. In this way, the retention component 100 is reliably connected to the base plate 200, while the installation stability of the retention soft needle 3 etc. is always maintained, reducing the impact of the shaking of the retention component 100 on the human body, ensuring the reliability of the blood sugar monitoring value during use, and ensuring that the insulin solution can be smoothly delivered, thereby improving the patient's experience.

[0062] The utility model can not only deliver insulin solution to diabetic patients in a timely and quantitative manner by implanting the monitoring probe 6 in the indwelling component 100, but also can realize real-time monitoring of blood sugar of diabetic patients, which not only reduces the frequent manual blood sugar measurement of patients, but also can more accurately grasp the blood sugar dynamics of patients, providing a basis for individualized insulin regulation;

[0063] The connection method between the retention component 100 and the base plate 200 ensures the stability of the connection between the two, so that the retention component 100 is firmly fixed on the skin surface, thereby ensuring the stable release of the drug. In addition, this connection method also has good sealing performance, which can effectively prevent drug leakage or external contamination, and ensure safe drug delivery;

[0064] The retention component 100 of the utility model has a simple structure and can be easily disassembled and assembled by the user, which provides convenience for the patient to replace the retention component 100 on a daily basis, while also reducing the risk during the replacement process; because the retention component 100 is designed to be retained subcutaneously for a long time, the patient does not need frequent punctures, thereby reducing the risk of infection and pain, enhancing the patient's comfort of use, and facilitating the patient's life.

[0065] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A retention component, characterized in that: include: A needle seat (1), the needle seat (1) being a fixed carrier, having a sealing cavity, in which a sealing component is installed; An indwelling soft needle (3), the indwelling soft needle (3) being mounted at the bottom of the needle seat (1), one end of the indwelling soft needle (3) being butted against the sealed cavity, and the other end of the indwelling soft needle (3) extending out of the needle seat (1); A monitoring probe (6), the monitoring probe (6) having a monitoring end (61), the monitoring end (61) passing through the sealing cavity of the needle seat (1) and arranged inside the indwelling soft needle (3); the sealing component comprises: A rubber plug (4) and a plug cover (5), wherein the rubber plug (4) and the plug cover (5) are installed at the top opening of the needle seat (1), and the plug cover (5) is pressed against the connection between the needle seat (1) and the rubber plug (4), so that the sealed cavity is formed in the needle seat (1), and the monitoring end (61) of the monitoring probe (6) passes through the plug cover (5) and extends downward.

2. The retention assembly according to claim 1, characterized in that: The plug cover (5) is provided with an opening (51), and the monitoring end (61) of the monitoring probe (6) passes through the opening (51) and extends downward.

3. The retention assembly according to any one of claims 1 to 2, characterized in that: The monitoring probe (6) also has a fixed end (62), and the monitoring probe (6) is fixedly mounted on the needle seat (1) via the fixed end (62).

4. The retention assembly according to claim 3, characterized in that: The needle seat (1) is provided with a fixed installation position on the outside, and the monitoring probe (6) is installed on the fixed installation position of the needle seat (1) through the fixed end (62); A positioning pin is arranged on the fixed installation position, and a corresponding positioning hole is arranged on the fixed end (62); or a positioning hole is arranged on the fixed installation position, and a corresponding positioning pin is arranged on the fixed end (62); Wherein, the fixed end (62) and the fixed installation position are fixed by glue spotting.

5. The retention assembly according to claim 1, characterized in that: The needle seat (1) is fixed on a base plate (200), wherein the bottom of the base plate (200) has a positioning and mounting structure (210), and the needle seat (1) can be fixedly mounted on the positioning and mounting structure (210) and extend out of the base plate (200).

6. The retention assembly according to claim 5, characterized in that: The needle seat (1) and the positioning and mounting structure (210) adopt a snap-fitting manner, wherein a snap-fitting groove is provided on the base plate (200), and a corresponding snap-fitting groove is provided on the needle seat (1), or a snap-fitting groove is provided on the base plate (200), and a corresponding snap-fitting groove is provided on the needle seat (1).

7. The retention assembly according to claim 6, characterized in that: The needle seat (1) and the positioning and mounting structure (210) are connected by interference fit.

8. The retention assembly according to claim 1, characterized in that: It also comprises a guide member (2), which is installed in the sealed cavity of the needle seat (1), and the bottom of the guide member (2) is butted against one end of the indwelling soft needle (3).

9. The retention assembly according to claim 8, characterized in that: The guide member (2) adopts a guide bucket having a guide opening with a trumpet opening, and the guide member (2) is a metal guide bucket.

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