A microencapsulated implantable human connector

Abstract

This utility model discloses a microcapsule implantable human connector, comprising a capsule shell, a locking structure, and an internal cavity. The capsule shell includes a first shell and a second shell connected to each other, axially joined to form a continuous, smooth capsule-shaped structure. The locking structure is disposed at the joint end of the first and second shells for reversible fixation. The internal cavity extends through the first and second shells to accommodate conductive components. This utility model aims to provide a connector that is compact, easy to implant, and highly reliable.

Description

Technical Field

[0001] This utility model relates to the field of medical connector technology, and in particular to a microcapsule implantable human body connector. Background Technology

[0002] In the field of medical implantable devices, connectors, as core components for signal transmission and power supply, directly affect the success rate of implantation and the long-term safety of patients. Traditional implantable connectors mostly use metal shells (such as titanium alloys) or rigid plastic shells, which have significant drawbacks. Existing shells are mostly cylindrical or flat structures, which can easily compress surrounding tissues after implantation, especially in space-sensitive medical scenarios such as neurostimulators and microsensors, and may easily cause inflammation or displacement risks. Utility Model Content

[0003] The main purpose of this invention is to provide a microcapsule implantable human connector, which aims to solve the problems of traditional implantable connectors being large in size and easily causing tissue compression.

[0004] To achieve the above objectives, the present invention proposes a microcapsule implantable human connector, comprising: a capsule shell, including a first shell and a second shell connected to each other, wherein the first shell and the second shell are axially connected to each other to form a continuous and smooth capsule-shaped structure;

[0005] A locking structure, located at the mating end of the first and second housings, is used to achieve reversible fixing between the two; and

[0006] An internal cavity, penetrating the first and second housings, is used to house conductive components.

[0007] In one possible implementation, the locking structure includes an external threaded portion at the mating end of the first housing and an internal threaded groove at the mating end of the second housing that matches it.

[0008] In one possible implementation, the outer surface of the first or second housing is provided with at least one notch, which is distributed circumferentially along the housing to facilitate rotational disassembly.

[0009] In one possible implementation, the capsule shell is made of a biocompatible polymer material.

[0010] In one possible implementation, the conductive component is made of a platinum-iridium alloy.

[0011] This utility model's technical solution achieves minimization of implantation volume and optimization of tissue adaptability by adopting a split capsule shell design and miniaturized structure, solving the problems of large size and easy tissue compression caused by traditional implantable connectors. It can be adapted to space-sensitive medical scenarios such as nerve stimulators and micro sensors. At the same time, the threaded locking structure improves connection reliability and shortens operation time. In addition, the combination design of PEEK shell and platinum-iridium alloy electrode also achieves dual protection of biosafety and signal stability under long-term implantation. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0014] Figure 2 This is an exploded view of an embodiment of the present invention;

[0015] Figure 3 This is a cross-sectional view of an embodiment of the present invention;

[0016] Figure 4 This is an exploded cross-sectional view of an embodiment of the present invention.

[0017] Explanation of icon numbers:

[0018] 1. Capsule shell; 11. First shell; 12. Second shell; 2. Locking structure; 21. External threaded part; 22. Internal threaded groove; 3. Internal cavity; 31. Conductive component; 4. Notch.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0021] To address the problems in the background technology, this utility model proposes a microcapsule implantable human connector, comprising:

[0022] The capsule shell 1 includes a first shell 11 and a second shell 12 connected to each other. The first shell 11 and the second shell 12 are axially joined to form a continuous and smooth capsule-shaped structure.

[0023] Locking structure 2 is disposed at the mating end of the first housing 11 and the second housing 12, for reversible fixing of the two; and

[0024] The internal cavity 3 extends through the first housing 11 and the second housing 12 and is used to house the conductive component 31.

[0025] Combined with reference Figures 1 to 3 As shown, in this embodiment, the capsule shell 1 is composed of a first shell 11 and a second shell 12 joined axially, forming a continuous and smooth capsule-shaped structure through precision machining. The outer surfaces of the first shell 11 and the second shell 12 adopt a streamlined design with hemispherical transitions at both ends, and the overall shape simulates the natural tissue morphology in the human body, effectively reducing friction and pressure on surrounding tissues after implantation. Its surface can be further coated with a bio-inert coating to enhance long-term chemical stability and corrosion resistance. The locking structure 2 is integrated into the joint of the first shell 11 and the second shell 12, and can employ a rotating thread structure, a snap-locking structure 2, a magnetic locking structure 2, a slide rail spring lock structure, etc., achieving quick connection and disassembly through a reversible fixing design. The internal cavity 3 penetrates the first shell 11 and the second shell 12 to accommodate the conductive component 31. A medical silicone sealing ring is provided at the cavity joint interface, achieving leakage prevention and electrical isolation through elastic compression.

[0026] In one possible implementation, the locking structure 2 includes an external threaded portion 21 provided at the mating end of the first housing 11 and an internal threaded groove 22 provided at the mating end of the second housing 12 that matches it.

[0027] Combined with reference Figures 1 to 3As shown, in this embodiment, the locking structure 2 adopts a threaded engagement design, specifically including an external threaded portion 21 at the mating end of the first housing 11 and an internal threaded groove 22 at the mating end of the second housing 12. The pitch of the external threaded portion 21 is 0.1–0.5 mm, the thread engagement length is 2–5 mm, and the thread profile is an isosceles triangle to adapt to the size limitations of the miniaturized housing. The thread groove depth of the internal threaded groove 22 of the second housing 12 matches the thread height of the external thread. By rotating the first housing 11 clockwise, the external threaded portion 21 and the internal threaded groove 22 gradually engage, ensuring a stable connection and preventing housing deformation due to excessive tightness. Reverse rotation enables quick disassembly. During operation, the threaded contact surface is coated with a medical-grade silicone grease lubricant layer to reduce frictional wear. In addition to the threaded engagement, the locking structure 2 further includes a guide groove and a guide protrusion to ensure precise alignment during connection. Specifically, the first housing 11 has at least one axially extending guide protrusion on the outer side of the external threaded portion 21 at the mating end, and the inner housing of the second housing 12 has a guide groove at a corresponding position. During connection, the guide protrusion first embeds into the guide groove, and guides the initial engagement of the external threaded portion 21 and the inner threaded groove 22 by axial pushing, thus avoiding thread misalignment or skew during rotation. This thread structure combines high precision and reliability in miniaturization scenarios, solving the locking failure problem caused by the large size and easy wear of threads in traditional implantable connectors, and ensuring the safety of long-term implantation.

[0028] In one possible embodiment, the outer surface of the first housing 11 or the second housing 12 is provided with at least one notch 4, which is distributed along the circumference of the housing to facilitate rotational disassembly.

[0029] Combined with reference Figures 1 to 3 As shown, in this embodiment, the outer surface of the first housing 11 or the second housing 12 is provided with at least one circumferentially distributed notch 4 structure to assist in rotation operation. The notch 4 is a U-shaped or V-shaped groove design, and the notches 4 are symmetrically distributed on the outer surface of the non-butting ends of the housing.

[0030] In one possible embodiment, the capsule shell 1 is made of a biocompatible polymer material. Specifically, the capsule shell 1 is made of a biocompatible polymer material, specifically polyetheretherketone (PEEK) or polylactic acid (PLA), and its surface is precision-machined to form a continuous, smooth capsule shape. This material selection satisfies the mechanical strength requirements of the implantable device while ensuring the biocompatibility of long-term implantation, effectively avoiding rejection reactions and imaging interference that may be caused by metal materials.

[0031] In one possible implementation, the conductive component 31 is made of a platinum-iridium alloy. Specifically, the conductive component 31 is made of a platinum-iridium alloy, which has excellent biocompatibility and corrosion resistance, and can maintain stable electrical signal transmission performance even in long-term implantation environments, fully meeting the stringent requirements of implantable medical devices for conductive materials.

[0032] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0033] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A microcapsule implantable human connector, characterized in that, include: The capsule shell includes a first shell and a second shell that are connected to each other, and the first shell and the second shell are axially joined to form a continuous and smooth capsule-shaped structure; A locking structure, located at the mating end of the first and second housings, is used to achieve reversible fixing between the two; and An internal cavity, penetrating the first housing and the second housing, is used to house conductive components; The locking structure includes an external threaded portion at the mating end of the first housing and an internal threaded groove at the mating end of the second housing that matches it; the outer surface of the first housing or the second housing is provided with at least one notch, which is distributed along the circumference of the housing to facilitate rotational disassembly; the outer side of the external threaded portion at the mating end of the first housing is provided with at least one axially extending guide protrusion, and a guide groove is provided at a corresponding position in the second housing. When connected, the guide protrusion is embedded in the guide groove to guide the initial engagement of the external threaded portion and the internal threaded groove.

2. The microcapsule implantable human connector according to claim 1, characterized in that, The capsule shell is made of a biocompatible polymer material.

3. The microcapsule implantable human connector according to claim 1, characterized in that, The conductive component is made of platinum-iridium alloy.

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