Lower limb arteriosclerosis obliterans interventional stent

By designing an interventional stent with a U-shaped main stent and an L-shaped limiting rod, combined with a vertically liftable downward baffle and a clamping mechanism of the U-shaped clip body, the problem of instability in the fixation of interventional stents in the lower limb atherosclerosis occlusion in the prior art is solved, achieving higher surgical accuracy and safety.

CN222870873UActive Publication Date: 2025-05-16HE BEI SHENG ZHONG YI YUAN (FIRST AFFILIATED HOSPITAL OF HEBEI UNIVERSITY OF TRADITIONAL CHINESE MEDICINE HEBEI CENTER FOR PREVENTION & CONTROL OF SCOLIOSIS IN CHILDREN & ADOLESCENTS)
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Patent Information

Application Number
CN202421751794.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-05-16
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

The existing interventional stents of lower limb atherosclerosis occlusion have instability when fixing the patient's lower limbs, which may lead to unnecessary movement or shaking of the patient's lower limbs during the operation, affecting the accuracy and safety of the operation.

Method used

An intervention bracket including a U-shaped main bracket and an L-shaped limiting rod is designed. The main bracket is equipped with vertically liftable and lowered baffles on both sides. The clamping mechanism includes a U-shaped clamp body and an elastic clamp, which can be fixed to both sides of the hospital bed, providing stable fixing and operating space.

Benefits of technology

Effectively fix the patient's lower limbs, prevent shaking during surgery, improve the accuracy and safety of the surgery, ensure the comfort and effectiveness of fixation, and avoid the possibility of compression damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of medical equipment for arteriosclerosis obliterans, and discloses a lower limb arteriosclerosis obliterans interventional stent which comprises a main stent body, the main stent body is of a U-shaped structure, L-shaped limiting rods are distributed and connected to the two ends of the bottom of the main stent body, the bottom of each limiting rod is provided with a clamping mechanism used for being fixed to the bedside, and the limiting rods are arranged on the main stent body. Transverse plates are symmetrically installed on the two sides of the main support, a downward pressing baffle capable of vertically ascending and descending is arranged at the bottom of each transverse plate, and the downward pressing baffles are used for fixing the two sides of the lower limbs of a patient. Threaded pipes are arranged on the upper side and the lower side of each transverse plate in a penetrating mode, the interiors of the threaded pipes are in threaded connection with hand wheel rods, and the downward pressing baffle comprises an arc-shaped pressing plate body. The main support is of a U-shaped structure and is matched with the L-shaped limiting rod, so that the lower limbs of a patient are effectively fixed, shaking during an operation is prevented, and the accuracy and safety of the operation are improved. The adjustable downward pressing baffle can vertically ascend and descend, and comfort and effectiveness of fixing are guaranteed.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment for arteriosclerosis obliterans, in particular to an interventional stent for arteriosclerosis obliterans of lower limbs. Background Art

[0002] The interventional stent for lower limb arteriosclerosis obliterans is a medical device used to treat arteriosclerosis obliterans, usually used to support and maintain vascular patency to restore or improve blood circulation in the patient's lower limbs.

[0003] The current technical solutions have some problems in fixing the patient's lower limbs and optimizing the operating space. One of the main problems is the inconvenience and shortcomings in the process of fixing the patient's lower limbs:

[0004] Existing stent designs are usually unstable when fixing the patient's lower limbs, which may cause unnecessary movement or shaking of the patient's lower limbs during surgery, which may affect the accuracy and safety of the surgery. Therefore, we propose an interventional stent for lower limb arteriosclerosis obliterans. Utility Model Content

[0005] The utility model mainly solves the above-mentioned existing technical problems and provides an interventional stent for lower limb arteriosclerosis obliterans.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an interventional stent for lower limb arteriosclerosis obliterans, comprising a main stent, which is a U-shaped structure, and L-shaped limit rods are distributed and connected at both ends of the bottom of the main stent, and a clamping mechanism for fixing to the bedside is provided at the bottom of each limit rod, and horizontal plates are symmetrically installed on both sides of the main stent, and a vertically liftable downward pressure baffle is provided at the bottom of each horizontal plate, and the downward pressure baffle is used to fix the two sides of the patient's lower limbs.

[0007] Preferably, a threaded tube is provided through the upper and lower sides of each horizontal plate, the internal threads of the threaded tube are connected to a handwheel rod, and the lower pressure baffle includes an arc-shaped pressure plate body, the upper end of the pressure plate body is connected to the bottom of the handwheel rod.

[0008] Preferably, each of the pressing plate bodies is an elastic rubber baffle.

[0009] Preferably, the main bracket is made of aluminum alloy.

[0010] Preferably, the limiting rod is made of aluminum alloy.

[0011] Preferably, each of the clamping mechanisms includes a U-shaped clamp body, an elastic clamping plate is arranged inside the clamp body, the bottom of the clamp body is threadedly connected to a first screw extending inside the groove of the clamp body, and the upper end of the first screw is connected to the corresponding clamping plate.

[0012] Beneficial Effects

[0013] The utility model provides an interventional stent for lower extremity arteriosclerosis obliterans, which has the following beneficial effects:

[0014] 1. The main stent of the lower limb arteriosclerosis obliterans adopts a U-shaped structure, which is matched with an L-shaped limit rod to effectively fix the patient's lower limbs, prevent shaking during surgery, and improve surgical accuracy and safety. The adjustable downward pressure baffle can be raised and lowered vertically to ensure the comfort and effectiveness of fixation.

[0015] 2. The compression plate of the lower limb arteriosclerosis obliterans interventional stent adopts an elastic rubber baffle, which not only ensures the comfort of the patient's lower limbs, but also avoids the possibility of compression injury. The use of the rubber baffle takes into account the safety and comfort of the patient and is one of the important protective measures during the operation.

[0016] 3. The clamping mechanism of the interventional stent for lower limb arteriosclerosis obliterans, which is composed of a U-shaped clip body and an elastic splint, can be conveniently fixed on both sides of any hospital bed, providing stability and ease of use of the stent; the design of the clamping mechanism enables the stent to be quickly installed and adjusted in different medical environments, ensuring stability and operational efficiency during surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] The structures, proportions, sizes, etc. disclosed in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions for the implementation of the utility model. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the utility model without affecting the effects and purposes that can be achieved by the utility model.

[0019] Figure 1 It is an axial schematic diagram of the occlusive disease interventional stent of the utility model;

[0020] Figure 2 It is a side view of the interventional stent for occlusive disease of the utility model;

[0021] Figure 3 It is a front view of the occlusive disease interventional stent of the utility model;

[0022] Figure 4 It is a top view of the interventional stent for occlusive disease of the utility model.

[0023] Legend:

[0024] 1. Main bracket; 101. Limit rod; 2. Clamp body; 201. Clamp plate; 202. First screw rod; 3. Cross plate; 301. Threaded tube; 302. Handwheel rod; 4. Press plate body. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example: Interventional stent for lower extremity arteriosclerosis obliterans, such as Figure 1 - Figure 4 As shown, it includes a main bracket 1, which is a U-shaped structure, and L-shaped limit rods 101 are distributed and connected at both ends of the bottom of the main bracket 1. The bottom of each limit rod 101 is provided with a clamping mechanism for fixing to the bedside. The main bracket 1 is made of aluminum alloy, and the limit rods 101 are made of aluminum alloy.

[0027] The two sides of the main support 1 are symmetrically installed with cross plates 3, and the bottom of each cross plate 3 is provided with a downward pressure baffle that can be vertically raised and lowered. The downward pressure baffle is used to fix the two sides of the patient's lower limbs. By setting a U-shaped main support 1 and an L-shaped limit rod 101, when performing interventional surgery on the patient's lower limbs, the main support 1 can be placed on the upper end of the patient's leg, and the two sides of the patient's limb surgery can be limited and fixed by the downward pressure baffles that can be raised and lowered on both sides to prevent the patient's lower limbs from shaking during the surgery and affecting the surgery. At the same time, the main support 1 and the limit rod 101 form a limit interval, allowing the surgeon to perform surgery in this area, and some surgical items can be temporarily hung on the main support 1 or the limit rod 101 to free the doctor's hands.

[0028] Furthermore, a threaded tube 301 is provided on both sides of the upper and lower sides of each horizontal plate 3, and the internal thread of the threaded tube 301 is connected to a handwheel rod 302. The lower pressure baffle includes an arc-shaped pressure plate body 4, and the upper end of the pressure plate body 4 is connected to the bottom of the handwheel rod 302.

[0029] Furthermore, each of the pressing plate bodies 4 is an elastic rubber baffle, which has both hardness and partial elasticity and will not cause downward pressure damage to the squeezed end of the patient's lower limbs.

[0030] Furthermore, each of the clamping mechanisms comprises a U-shaped clamp body 2, an elastic clamping plate 201 is arranged inside the clamp body 2, a first screw 202 extending inside the groove of the clamp body 2 is threadedly connected to the bottom of the clamp body 2, and the upper end of the first screw 202 is connected to the corresponding clamping plate 201. The device can be fixed at any place on both sides of any bed through two sets of clamping mechanisms, which is convenient for installation and fixing and easy to use.

[0031] Working principle of the utility model: main effect, the two sides of the main support 1 are symmetrically installed with horizontal plates 3, and the bottom of each horizontal plate 3 is provided with a downward pressure baffle that can be vertically lifted and lowered, and the downward pressure baffle is used to fix the two sides of the patient's lower limbs. By setting a U-shaped main support 1 and an L-shaped limit rod 101, when performing interventional surgery on the patient's lower limbs, the main support 1 can be placed on the upper end of the patient's leg, and the two sides of the patient's limbs can be limited and fixed by the downward pressure baffles that can be lifted and lowered on both sides to prevent the patient's lower limbs from shaking during the operation and affecting the operation.

[0032] The U-shaped structure of the main support and the design of the limit rod: The main support 1 adopts a U-shaped structure, and an L-shaped limit rod 101 is distributed on the side. This design can effectively fix the patient's lower limbs, prevent shaking during the operation, and ensure the accuracy and safety of the operation. The U-shaped structure enables the main support 1 to be firmly placed on the upper end of the patient's legs, and the interval formed by the limit rod 101 provides a clear operating space for the surgeon.

[0033] Installation of the horizontal plate and the downward pressure baffle: The horizontal plate 3 is installed symmetrically on both sides of the main support 1, and is equipped with a downward pressure baffle that can be lifted vertically. These baffles can be adjusted vertically to tighten and fix the patient's lower limbs to avoid unnecessary movement during surgery; the vertical lifting design of the baffles allows it to adapt to the lower limb morphology and needs of different patients, ensuring the comfort and effectiveness of fixation.

[0034] Clamping mechanism and additional functions: The clamping mechanism includes a U-shaped clamp body 2 and an elastic clamp 201, which can be fixed on both sides of any bed, providing convenient installation and stability; this design enables the entire bracket system to be flexibly used in different medical environments, ensuring the stability and safety of surgical operations.

[0035] Elastic rubber baffle of the pressure plate body: The pressure plate body 4 is made of elastic rubber material, which not only ensures the comfort of fixation, but also reduces discomfort and pressure on the patient's lower limbs and avoids possible injuries; the choice of rubber material takes into account the patient's comfort and safety, while not hindering the needs of the surgical process.

[0036] Connection design of threaded tube and handwheel rod: threaded tube 301 is connected to handwheel rod 302. By operating the handwheel rod, the height of the downward pressure baffle can be accurately adjusted to meet the needs of different patients; this precise adjustment can ensure the operation accuracy and efficiency during the operation and improve the success rate of the operation.

[0037] In summary, this support system achieves effective fixation of the patient's lower limbs and optimization of surgical operation space through its carefully designed structure, including the shape of the main support, the setting of the limit rod, the installation of the cross plate and the downward pressure baffle, as well as the additional clamping mechanism and material selection. In addition to the main fixation function, the rubber baffle and precise adjustment mechanism add additional value to surgical operations and patient comfort.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An interventional stent for lower extremity arteriosclerosis obliterans, comprising a main stent (1), characterized in that: The main support (1) is a U-shaped structure, and L-shaped limit rods (101) are distributed and connected at both ends of the bottom of the main support (1), and a clamping mechanism for fixing to the bedside is arranged at the bottom of each limit rod (101). Horizontal plates (3) are symmetrically installed on both sides of the main support (1), and a downward pressure baffle that can be vertically raised and lowered is arranged at the bottom of each horizontal plate (3), and the downward pressure baffle is used to fix the two sides of the patient's lower limbs.

2. The interventional stent for lower extremity arteriosclerosis obliterans according to claim 1, characterized in that: A threaded tube (301) is provided through the upper and lower sides of each horizontal plate (3), the internal threads of the threaded tube (301) are connected to a handwheel rod (302), and the lower pressure baffle comprises an arc-shaped pressure plate body (4), the upper end of the pressure plate body (4) is connected to the bottom of the handwheel rod (302).

3. The interventional stent for lower extremity arteriosclerosis obliterans according to claim 2, characterized in that: Each of the pressing plate bodies (4) is an elastic rubber baffle.

4. The interventional stent for lower extremity arteriosclerosis obliterans according to claim 1, characterized in that: The main bracket (1) is made of aluminum alloy.

5. The interventional stent for lower extremity arteriosclerosis obliterans according to claim 1, characterized in that: The limiting rod (101) is made of aluminum alloy.

6. The interventional stent for lower extremity arteriosclerosis obliterans according to claim 1, characterized in that: Each of the clamping mechanisms comprises a U-shaped clamp body (2), an elastic clamping plate (201) is arranged inside the clamp body (2), the bottom of the clamp body (2) is threadedly connected with a first screw rod (202) extending inside the groove of the clamp body (2), and the upper end of the first screw rod (202) is connected to the corresponding clamping plate (201).