Multifunctional abdominal belt for left ventricular assist device implantation

CN224925269UActive Publication Date: 2026-11-03ZHEJIANG UNIV
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Patent Information

Application Number
CN202521235727.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-17
Publication Date
2026-11-03
Estimated Expiration
2035-06-17

AI Technical Summary

Technical Problem

The existing backpack design for carrying left ventricular assist devices is inconvenient for putting on and taking off, and the cables lack secure fastening, making them prone to swaying and affecting their reliability and practicality.

Method used

A multifunctional abdominal binder was designed, employing a Velcro and hinged ring structure. The cable is secured and compressed through the cable passage and placement basket on the binder body. Combined with the ring fastening mechanism and adhesive surface, it provides reliable closed protection.

Benefits of technology

It enables easy donning, doffing, and fixation, improving the convenience of patients' daily activities, and provides reliable protection in humid environments, preventing the cables and controllers from shaking and moisture intrusion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a left ventricular assist device implantation patient multifunctional bellyband, including bellyband body (1) and place basket (2), be equipped with cable through mouth (5) on bellyband body (1), place basket (2) with bellyband body (1) can detachable connection, the both ends of bellyband body (1) are equipped with respectively first magic tape male end (9) and first magic tape female end (10) in the face, and first magic tape male end (9) and first magic tape female end (10) are adapted, the both ends of bellyband body (1) are equipped with female recess (11) all, and two end female recess (11) are opposite and overlap and close to form the cable through mouth (5), the utility model discloses with bellyband as wearing main part, and can extrude fixed cable convenient to put on and take off, and the use reliability is good.
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Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a multifunctional abdominal binder for implanting a left ventricular assist device into a patient. Background Technology

[0002] Left ventricular assist device (LVAD) implantation is a surgical technique used to treat end-stage heart failure. It uses a mechanical pump to help the left ventricle pump blood into the aorta, improving systemic blood circulation. For ease of movement, patients need to carry both the controller and power supply to meet the pump's operating requirements. Patients need to wear a special backpack to carry the controller and power supply. However, backpacks, being non-close-fitting, are inconvenient to put on and take off, hindering patient movement. To address this, wearable devices such as vests and jackets with pockets for the controller and power supply have emerged. However, due to their large coverage area and the need to be worn up to the shoulders, they are also inconvenient to put on and take off. Furthermore, they lack cable securing, making them prone to swaying and resulting in poor practicality and reliability. Utility Model Content

[0003] The purpose of this invention is to provide a multifunctional abdominal binder for patients undergoing left ventricular assist device implantation. This invention uses the abdominal binder as the main wearer, which is convenient to put on and take off while also allowing for the compression and fixation of cables, resulting in excellent reliability.

[0004] The technical solution of this utility model is as follows: a multifunctional abdominal binder for implanting a left ventricular assist device, comprising an abdominal binder body and a placement basket; the abdominal binder body is provided with a cable passage opening; the placement basket is detachably connected to the abdominal binder body; the inner surfaces of both ends of the abdominal binder body are respectively provided with a first male Velcro end and a first female Velcro end, which are adapted to each other; both ends of the abdominal binder body are provided with concave openings, which overlap and close to form the cable passage opening.

[0005] The aforementioned left ventricular assist device implanted in a multifunctional abdominal binder for patients also includes a first hinge ring and a second hinge ring. The inner ring of the first hinge ring is used to surround the cable, and the outer side of the first hinge ring is provided with an adhesive surface for bonding to the patient's skin. The basket opening of the placement basket is provided with an extension tube cover, and the inner ring of the second hinge ring is used to tighten the middle part of the extension tube cover. The first hinge ring and the second hinge ring are jointly provided with an annular fastening mechanism for fitting and sealing the opening of the extension tube cover.

[0006] The aforementioned left ventricular assist device is implanted in a multifunctional abdominal binder for patients. The outer end of the abdominal binder body is provided with a second Velcro male end; the placement basket is provided with a connecting piece, and the connecting piece is provided with a second Velcro female end that is adapted to the second Velcro male end.

[0007] The aforementioned left ventricular assist device is implanted in a multifunctional abdominal binder for patients, and the bottom surface of the placement basket has a supporting frame.

[0008] The aforementioned left ventricular assist device is implanted in a multifunctional abdominal binder for a patient. The first hinge ring includes two first arc rings that are hinged together, and the second hinge ring includes two second arc rings that are hinged together. The annular fastening mechanism includes a protrusion on the first arc ring and a groove on the second arc ring. The protrusion after the two first arc rings are fitted together forms a circle, and the groove after the two second arc rings are fitted together forms a circle. The protrusion and the groove are fitted together and connected.

[0009] In the aforementioned left ventricular assist device implanted in a multifunctional abdominal binder, the curvature of both the first and second arc rings is greater than 180°; one end of the first arc ring is provided with a first concave surface, the first concave surfaces of the two first arc rings are attached together and rotatably connected by a shaft, the outer corner of the end of the first concave surface is an arc-shaped surface, and the inner side of the end of the first concave surface is a straight surface that matches the corresponding end of the other first arc ring; one end of the second arc ring is provided with a second concave surface, the second concave surfaces of the two second arc rings are attached together and rotatably connected by a shaft, the outer corner of the end of the second concave surface is an arc-shaped surface, and the inner side of the end of the second concave surface is a straight surface that matches the corresponding end of the other second arc ring.

[0010] In the aforementioned left ventricular assist device implanted in a multifunctional abdominal binder for patients, a rubber pad layer is provided on the straight surface of the first concave end and the straight surface of the second concave end.

[0011] Compared with existing technologies, this invention offers several advantages in daily use. The patient wraps the abdominal binder around their lower back, with both ends aligning at the abdomen. The cable passes through the recessed openings at both ends. The first female and male Velcro ends are then glued together to secure the binder. The cable passes through the cable opening formed by the two recessed openings, and the upper side of the binder compresses the cable, thus securing it. A basket is attached to the binder to hold the controller and its power supply, allowing for easy portability. The binder can be easily separated by pulling apart the first female and male Velcro ends, making it convenient to put on and take off. In humid environments, the first hinge ring is first rotated to separate it. After passing the cable through its inner ring opening, rotate and reassemble. Adhere and fix the first hinge ring to the patient's skin at the cable exit point using the adhesive surface. Remove the extension sleeve from the placement basket. The extension sleeve opening extends along the cable through the cable passage to the skin at the cable exit point. Rotate and separate the second hinge ring. After tightening the extension sleeve through its inner ring opening, rotate and reassemble. Finally, connect the first and second hinge rings through the ring fastening mechanism. The first and second hinge rings fit together and seal the opening of the extension sleeve, isolating the extension sleeve and placement basket from the outside. This provides enclosed protection for the cable, controller, and power supply, making it suitable for humid environments and highly practical. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the abdominal belt of this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the basket of this utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the first hinge ring of this utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the second hinge ring of this utility model.

[0017] The labels in the attached diagram are as follows: 1. Abdominal band body; 2. Placement basket; 3. First hinge ring; 4. Second hinge ring; 5. Cable passage; 6. Adhesive surface; 7. Extension sleeve cover; 8. Ring fastener; 9. First hook and loop fastener male end; 10. First hook and loop fastener female end; 11. Inner notch; 12. Second hook and loop fastener male end; 13. Connecting piece; 14. Second hook and loop fastener female end; 15. First arc ring; 16. Second arc ring; 17. Raised strip; 18. Groove; 19. First concave surface; 20. Second concave surface; 21. Rubber pad layer. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0019] Example: A multifunctional abdominal binder for implanting a left ventricular assist device into a patient, as shown in the attached document. Figure 1 As shown, the device includes an abdominal binder 1, a placement basket 2, a first hinge ring 3, and a second hinge ring 4. The abdominal binder 1 has a cable passage opening 5. The binder is made of polytetrafluoroethylene (PTFE) with an internal skeleton support, a small wearing area, and nanoscale micropores that allow water vapor molecules to pass through while blocking liquid water, providing waterproof and breathable protection. The placement basket 2 is detachably connected to the abdominal binder 1. The inner ring of the first hinge ring 3 is used to surround the cable, and the outer side of the first hinge ring 3 has a ring-shaped adhesive surface 6 for bonding to the patient's skin. The adhesive surface is made of silicone-based adhesive material, which is waterproof and breathable and can be repeatedly applied, wrapping and closing the skin at the cable exit point after application. The placement basket 2 has an integrally formed extension sleeve 7 (which can be stored inside the placement basket), and the inner ring of the second hinge ring 4 is used to tighten the middle of the extension sleeve 7. The first hinge ring 3 and the second hinge ring 4 are both machined with a ring-shaped fastening mechanism 8 for fitting and closing the opening of the extension sleeve 7. (See attached diagram.) Figure 2As shown, the inner surfaces of both ends of the abdominal binder 1 are respectively glued with a first hook and loop fastener male end 9 and a first hook and loop fastener female end 10. The first hook and loop fastener male end 9 and the first hook and loop fastener female end 10 are compatible and glued together by hook and loop fasteners, making it convenient to use. Both ends of the abdominal binder 1 are processed with concave openings 11, which overlap and close to form the cable passage opening 5, making it convenient to wear while preventing the cable from being touched. A second hook and loop fastener male end 12 is glued to the outer surface of the end of the abdominal binder 1; as shown in the attached figure. Figure 3 As shown, the placement basket 2 is formed with a connecting piece 13, and a second hook-and-loop fastener female end 14 adapted to the second hook-and-loop fastener male end 12 is glued to the connecting piece 13. Through the hook-and-loop fastener connection, the position of the placement basket can be changed according to usage habits. The bottom surface of the placement basket 2 is filled with a supporting frame to form a fixed plane, ensuring that the controller and its power supply are placed stably inside. (See attached...) Figure 4 and attached Figure 5 As shown, the first hinge ring 3 includes two hinged first arc rings 15, and the second hinge ring 4 includes two hinged second arc rings 16; the annular fastening mechanism 8 includes a protrusion 17 integrally formed on the first arc ring 15 and a groove 18 provided on the second arc ring 16. The protrusion 17 after the two first arc rings 15 are fitted together forms a circle, and the groove 18 after the two second arc rings 16 are fitted together forms a circle. The protrusion 17 and the groove 18 are fitted together and connected. After the groove and the protrusion are fitted together, the extension sleeve is pressed into the groove by the protrusion. The friction generated by the pressing and the resistance generated by the fitting achieve relative fixation, while forming multiple layers to ensure waterproof effect; The arc of both the first arc ring 15 and the second arc ring 16 is greater than 180°. One end of the first arc ring 15 is machined with a first concave surface 19. The first concave surfaces 19 of the two first arc rings 15 are attached together and rotatably connected via a shaft. The outer corner of the end of the first concave surface 19 is an arc-shaped surface, and the inner side of the end of the first concave surface 19 is a straight surface that matches the corresponding end of the other first arc ring 15. One end of the second arc ring 16 is machined with a second concave surface 20. The second concave surfaces 20 of the two second arc rings 16 are attached together and rotatably connected via a shaft. The outer corner of the end of the second concave surface 20 is an arc-shaped surface, and the inner side of the end of the second concave surface 20 is a straight surface that matches the corresponding end of the other second arc ring 16. The arc-shaped surface is used to avoid motion interference during rotation, while the straight surface is used to ensure the integrity after attachment. Rubber pads 21 are attached to the straight surfaces of the first concave surface 19 and the second concave surface 20, allowing for deformation and preventing gaps after attachment.

[0020] Working Principle: In daily use, the patient wraps the abdominal binder 1 around the waist and back, with both ends overlapping at the abdomen. The cable passes through the recessed openings 11 at both ends. After adjusting to a suitable tightness, the first Velcro female end 10 and the first Velcro male end 9 are glued together to complete the wearing and securing. At this time, the cable passes through the cable passage opening 5 formed by the two recessed openings 11, causing the upper side of the abdominal binder 1 to compress the cable, thus securing it. The placement basket 2 is detachably connected to the second Velcro male end 12 outside the abdominal binder via the second Velcro female end 14 on the connecting piece 13. The patient can adjust its position on the abdominal binder according to their preference. The support frame at the bottom of the placement basket keeps the controller and power supply horizontal, preventing swaying. In humid environments (such as bathing), the first hinge ring 3, composed of two first arc rings 15, is first rotated to separate. The cable passes through its inner ring opening and then closes. The outer adhesive surface 6 tightly adheres to the skin at the cable passage opening, forming the first layer of seal. Then, the extension is pulled out from the basket opening. The extension sleeve 7 extends along the cable through the cable passage to the skin at the cable exit point. Rotating it separates the second hinge ring 4, which is composed of two second arc rings 16. The extension sleeve is then closed by the inner ring opening. Finally, a ring-shaped fastening mechanism 8, where the protrusion 17 on the first arc ring engages with the groove 18 on the second arc ring, compresses the extension sleeve into the groove, and the rubber pads on the first and second concave surfaces fill the gaps, completely sealing the extension sleeve opening and isolating the basket from the external humid environment. Both the first and second arc rings have an arc angle greater than 180°, forming a complete circle at the inner ring opening after closure. The arc-shaped design at the hinge end ensures smooth opening and closing, and the tight fit on the inner side of the straight surface enhances sealing reliability. This abdominal belt, through its multi-layered sealing structure and flexible detachable design, meets daily portability needs while providing reliable protection for cables, controllers, and power supplies in humid environments. It solves the problems of inconvenient donning and doffing and lack of waterproofing in traditional backpacks, improving patient convenience and equipment safety.

[0021] The above embodiments merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. Furthermore, in these embodiments, "up," "down," "left," "right," "front," and "back" represent relative positions only, not absolute positions. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A multifunctional abdominal binder for implanting a left ventricular assist device in patients, characterized in that: It includes an abdominal belt (1) and a placement basket (2); the abdominal belt (1) is provided with a cable passage (5); the placement basket (2) is detachably connected to the abdominal belt (1); the inner surfaces of the two ends of the abdominal belt (1) are respectively provided with a first hook and loop fastener male end (9) and a first hook and loop fastener female end (10), which are compatible with each other; both ends of the abdominal belt (1) are provided with an inner recess (11), and the inner recesses (11) at both ends overlap and close to form the cable passage (5).

2. The multifunctional abdominal binder for implanting a left ventricular assist device into a patient according to claim 1, characterized in that: It also includes a first hinge ring (3) and a second hinge ring (4). The inner ring of the first hinge ring (3) is used to surround the cable, and the outer side of the first hinge ring (3) is provided with an adhesive surface (6) for bonding the patient's skin. The basket opening of the placement basket (2) is provided with an extension tube cover (7), and the inner ring of the second hinge ring (4) is used to gather the middle part of the extension tube cover (7). The first hinge ring (3) and the second hinge ring (4) are provided with a ring fastening mechanism (8) for fitting and closing the opening of the extension tube cover (7).

3. The multifunctional abdominal binder for implanting a left ventricular assist device into a patient according to claim 1, characterized in that: The abdominal band (1) has a second hook and loop fastener male end (12) on its outer side; the placement basket (2) has a connecting piece (13) and a second hook and loop fastener female end (14) that is compatible with the second hook and loop fastener male end (12).

4. The multifunctional abdominal binder for implanting a left ventricular assist device into a patient according to claim 1, characterized in that: The bottom surface of the placement basket (2) has a supporting frame.

5. The multifunctional abdominal binder for implanting a left ventricular assist device into a patient according to claim 2, characterized in that: The first hinge ring (3) includes two first arc rings (15) hinged together, and the second hinge ring (4) includes two second arc rings (16) hinged together. The ring fastening mechanism (8) includes a protrusion (17) on the first arc ring (15) and a groove (18) on the second arc ring (16). The protrusion (17) after the two first arc rings (15) are attached together forms a circle, and the groove (18) after the two second arc rings (16) are attached together forms a circle. The protrusion (17) and the groove (18) are fitted together and connected.

6. The multifunctional abdominal binder for implanting a left ventricular assist device into a patient according to claim 5, characterized in that: The arc of the first arc ring (15) and the second arc ring (16) is greater than 180°. One end of the first arc ring (15) is provided with a first concave surface (19). The first concave surfaces (19) of the two first arc rings (15) are attached to each other and connected by a shaft. The outer corner of the end of the first concave surface (19) is an arc surface. The inner side of the end of the first concave surface (19) is a straight surface that matches the corresponding end of the other first arc ring (15). One end of the second arc ring (16) is provided with a second concave surface (20). The second concave surfaces (20) of the two second arc rings (16) are attached to each other and connected by a shaft. The outer corner of the end of the second concave surface (20) is an arc surface. The inner side of the end of the second concave surface (20) is a straight surface that matches the corresponding end of the other second arc ring (16).

7. The multifunctional abdominal binder for implanting a left ventricular assist device into a patient according to claim 6, characterized in that: A rubber pad layer (21) is provided on the straight surface at the end of the first concave surface (19) and the straight surface at the end of the second concave surface (20).