Multi-stage nested wire sleeving structure and use method thereof
Through the cooperation of multi-stage nested wire structure and retaining rings, limit blocks and springs, the problem of insufficient flexibility of traditional wire structures in complex anatomical structures and tortuous surgical paths is solved, and accurate guidance of wires and high precision of surgery is achieved.
Patent Information
- Application Number
- CN202510254366.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2025-05-30
AI Technical Summary
In orthopedic surgery, traditional threaded structures are difficult to adapt to complex anatomical structures and tortuous surgical paths due to insufficient flexibility in single arc design, making it difficult to accurately guide the wires to the target position, increasing the difficulty and risk of surgery.
The multi-stage nested sleeve structure is adopted, including first-stage, second-stage and third-stage sleeves. Through the coordination of the connecting rod and grip, doctors can nest sleeves step by step as needed, using the coordination of retaining rings, limiting blocks and springs to ensure the stability and accuracy of the sleeve.
The wires are accurately reached to the target position under multi-stage guidance, which improves the accuracy and success rate of the surgery, and enhances the stability and adaptability of the wire structure.
Smart Images
Figure CN120052989A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of orthopedic surgical wire guiding instruments, and particularly to a multi-stage nested wire sleeve structure and its usage method. Background Art
[0002] In orthopedic surgeries, accurately guiding suture threads, guide wires, or other wires to specific positions to achieve tissue repair or fixation is crucial. Such surgeries often involve complex anatomical structures, such as joint areas and bone curvature regions, where the operating space is limited and the precision requirements for the surgery are extremely high. However, the currently used traditional wire sleeve structures have significant limitations in design and are difficult to fully meet the requirements of these complex surgeries.
[0003] Traditional wire sleeve structures usually adopt a single arc design. Although this design can meet the basic wire guiding requirements to a certain extent, its lack of flexibility becomes particularly prominent when facing complex anatomical structures. Especially at joints or bone curvatures, the single arc design often has difficulty adapting to the tortuous surgical path, making it difficult for doctors to accurately guide the wire to the target position. This not only increases the difficulty of the surgery but also may prolong the operation time and increase the surgical risk for patients. Summary of the Invention
[0004] The purpose of the present invention is to provide a multi-stage nested wire sleeve structure and its usage method, which have the advantages of high precision, strong adaptability, and simple operation, and solve the problem that the existing wire sleeve structure with a single arc design often has difficulty adapting to the tortuous surgical path, making it difficult for doctors to accurately guide the wire to the target position.
[0005] To achieve the above purpose, the present invention provides the following technical solution: A multi-stage nested wire sleeve structure and its usage method, including a connecting rod, one end of the connecting rod is fixedly connected with a first-stage sleeve, the inner cavity of the first-stage sleeve is sleeved with a second-stage sleeve, the inner cavity of the second-stage sleeve is sleeved with a third-stage sleeve, the end of the connecting rod far from the first-stage sleeve is fixedly connected with a handle, the first-stage sleeve, the second-stage sleeve, and the third-stage sleeve are used for guiding wires, one end of the second-stage sleeve and the third-stage sleeve close to the first-stage sleeve are both fixedly connected with retaining rings, the retaining rings are used for limiting the second-stage sleeve and the third-stage sleeve, a limiting hole is opened at one end of the connecting rod close to the first-stage sleeve, a limiting block is installed in the inner cavity of the limiting hole, one end of the limiting block penetrates to the outside of the limiting hole and is clamped with the retaining ring, and a spring is also installed in the inner cavity of the limiting hole. The limiting block and the spring are used for fixing the second-stage sleeve and the third-stage sleeve.
[0006] Preferably, the first-stage sleeve, the second-stage sleeve, and the third-stage sleeve are all circular arcs with the same radian and gradually decreasing diameters.
[0007] Preferably, one end of the spring is fixedly connected to the limit block, and the other end of the spring is fixedly connected to the inner wall of the limit hole.
[0008] Preferably, a sliding groove is formed in the inner wall of the limit hole, a slider is slidably connected to the inner cavity of the sliding groove, and one end of the slider away from the sliding groove is fixedly connected to the limit block.
[0009] Preferably, the first-stage sleeve, the second-stage sleeve and the third-stage sleeve are all made of hollow tubes, and the material can be selected from medical stainless steel or titanium alloy.
[0010] Preferably, the diameter of the first-stage sleeve > the diameter of the second-stage sleeve, and the diameter of the second-stage sleeve > the diameter of the third-stage sleeve.
[0011] The usage method steps are as follows:
[0012] First, install the connecting rod and the grip. The doctor can insert the first-stage sleeve, the second-stage sleeve and the third-stage sleeve into the bone position of the patient through the grip and the connecting rod. According to the bone position, the second-stage sleeve is sleeved into the inner cavity of the first-stage sleeve. The length of the first-stage sleeve can be extended through the second-stage sleeve. The third-stage sleeve can also be sleeved in the inner cavity of the second-stage sleeve, and the guiding length is extended again through the third-stage sleeve. One end of the suture is inserted through the cavity of the third-stage sleeve. The wire will adjust the direction under the step-by-step guidance and pass through from the other end and finally reach the target position, so as to be able to guide the suture.
[0013] When sleeving the second-stage sleeve and the third-stage sleeve, press one end of the limit block. The limit block squeezes the spring, causing the spring to deform. After the second-stage sleeve and the third-stage sleeve are sleeved, release the limit block. The restoring elastic force of the spring pushes one end of the limit block to move outward and contact the retaining ring to form a snap connection, so as to fix the second-stage sleeve and the third-stage sleeve and prevent the second-stage sleeve and the third-stage sleeve from shifting during the surgical operation.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0015] 1. Through the multi-stage nesting design of the present invention, the first-stage sleeve, the second-stage sleeve and the third-stage sleeve are nested step by step. The doctor can flexibly adjust the length and curvature of the wire-sleeving structure according to the surgical requirements, so that the wire can accurately reach the target position under the step-by-step guidance, greatly improving the accuracy and success rate of the operation.
[0016] 2. Through the common cooperation of the retaining ring, the limit block and the spring, the present invention can provide stable support for the second-stage sleeve and the third-stage sleeve, ensuring that the second-stage sleeve and the third-stage sleeve will not shift during the surgical process, thereby effectively improving the stability of the wire-sleeving structure in use. Description of the Drawings
[0017] Figure 1 Schematic front view structure of the present invention;
[0018] Figure 2 Schematic front sectional view structure of the present invention;
[0019] Figure 3 Schematic separation state structure of the primary sleeve and the secondary sleeve of the present invention;
[0020] Figure 4 For the present invention Figure 2 Local enlarged structure schematic diagram at position A in the present invention.
[0021] In the figure: 1, connecting rod; 2, primary sleeve; 3, secondary sleeve; 4, tertiary sleeve; 5, grip; 6, retaining ring; 7, limiting hole; 8, limiting block; 9, spring; 10, sliding groove; 11, slider. Specific embodiments
[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0023] Embodiment 1
[0024] As Figures 1-4 shown, this is the first embodiment of the present invention. This embodiment provides a multi-stage nested wire sleeve structure and its usage method, including a connecting rod 1. One end of the connecting rod 1 is fixedly connected to a primary sleeve 2. The inner cavity of the primary sleeve 2 is sleeved with a secondary sleeve 3. The inner cavity of the secondary sleeve 3 is sleeved with a tertiary sleeve 4. One end of the connecting rod 1 away from the primary sleeve 2 is fixedly connected to a grip 5. The primary sleeve 2, the secondary sleeve 3, and the tertiary sleeve 4 are used to guide the wire. Retaining rings 6 are fixedly connected to one ends of the secondary sleeve 3 and the tertiary sleeve 4 close to the primary sleeve 2. The retaining rings 6 are used to limit the secondary sleeve 3 and the tertiary sleeve 4. A limiting hole 7 is opened at one end of the connecting rod 1 close to the primary sleeve 2. A limiting block 8 is installed in the inner cavity of the limiting hole 7. One end of the limiting block 8 penetrates to the outside of the limiting hole 7 and is clamped with the retaining ring 6. A spring 9 is also installed in the inner cavity of the limiting hole 7. The limiting block 8 and the spring 9 are used to fix the secondary sleeve 3 and the tertiary sleeve 4;
[0025] The steps of its usage method are as follows:
[0026] First, install the connecting rod 1 and the grip 5. Through the grip 5 and the connecting rod 1, the doctor can insert the first-stage sleeve 2, the second-stage sleeve 3, and the third-stage sleeve 4 into the bone position of the patient. According to the bone position, the second-stage sleeve 3 is sleeved into the inner cavity of the first-stage sleeve 2. Through the second-stage sleeve 3, the length of the first-stage sleeve 2 can be extended. The third-stage sleeve 4 can also be continuously sleeved into the inner cavity of the second-stage sleeve 3. Through the third-stage sleeve 4, the guiding length is extended again. One end of the suture is inserted through the cavity of the third-stage sleeve 4. The wire will adjust its direction under the step-by-step guidance and exit from the other end, finally reaching the target position, so as to be able to guide the suture.
[0027] When sleeving the second-stage sleeve 3 and the third-stage sleeve 4, press one end of the limit block 8. The limit block 8 squeezes the spring 9, causing the spring 9 to deform. After the second-stage sleeve 3 and the third-stage sleeve 4 are sleeved, release the limit block 8. The restoring elastic force of the spring 9 pushes one end of the limit block 8 to move outward and contact the retaining ring 6 to form a clamping connection, thereby fixing the second-stage sleeve 3 and the third-stage sleeve 4 to prevent the second-stage sleeve 3 and the third-stage sleeve 4 from shifting during the surgical operation.
[0028] As Figures 1-4 shown, during the operation, the doctor first installs the connecting rod 1 and the grip 5, and then inserts the first-stage sleeve 2, the second-stage sleeve 3, and the third-stage sleeve 4 into the bone position of the patient step by step through the grip 5 and the connecting rod 1. According to the specific bone position, the doctor can sleeve the second-stage sleeve 3 into the inner cavity of the first-stage sleeve 2. Through the second-stage sleeve 3, the length of the first-stage sleeve 2 is extended. If a longer guiding length is required, the third-stage sleeve 4 can also be continuously sleeved into the inner cavity of the second-stage sleeve 3. One end of the suture can be inserted through the cavity of the third-stage sleeve 4 and adjust its direction under the step-by-step guidance, and finally exit from the other end and reach the target position. During the process of sleeving the second-stage sleeve 3 and the third-stage sleeve 4, the doctor can press one end of the limit block 8, causing the limit block 8 to squeeze the spring 9 and the spring 9 to deform. After sleeving is completed, release the limit block 8. The restoring elastic force of the spring 9 will push one end of the limit block 8 to move outward and contact the retaining ring 6 to form a clamping connection, which can effectively fix the second-stage sleeve 3 and the third-stage sleeve 4 and prevent them from shifting during the surgical operation.
[0029] Embodiment 2
[0030] Refer to Figures 1-4 , for the second embodiment of the present invention. This embodiment is based on the previous embodiment.
[0031] In this embodiment, the first-stage sleeve 2, the second-stage sleeve 3, and the third-stage sleeve 4 are all arc-shaped, and have the same radian, and the diameters decrease one by one.
[0032] One end of the spring 9 is fixedly connected to the limit block 8, and the other end of the spring 9 is fixedly connected to the inner wall of the limit hole 7.
[0033] The inner wall of the limiting hole 7 is provided with a sliding groove 10, and a slider 11 is slidably connected to the inner cavity of the sliding groove 10. One end of the slider 11 away from the sliding groove 10 is fixedly connected to the limiting block 8.
[0034] The first-stage sleeve 2, the second-stage sleeve 3 and the third-stage sleeve 4 are all made of hollow tubes, and the material can be selected from medical stainless steel or titanium alloy.
[0035] The diameter of the first-stage sleeve 2 > the diameter of the second-stage sleeve 3, and the diameter of the second-stage sleeve 3 > the diameter of the third-stage sleeve 4.
[0036] As Figures 1-4 shown, since the first-stage sleeve 2, the second-stage sleeve 3 and the third-stage sleeve 4 are all designed with the same arc and gradually decreasing diameters, the wire-sheathing structure can be applied to surgical paths with different diameters and curvatures. At the same time, the hollow-tube design and the selection of materials such as medical stainless steel or titanium alloy not only ensure the strength of the wire-sheathing structure, but also ensure its good biocompatibility and corrosion resistance, so that the wire-sheathing structure can exhibit good performance in a variety of surgical scenarios.
[0037] During use, the doctor first installs the connecting rod 1 and the grip 5 to ensure that the entire wire-sheathing structure is stable and easy to operate. According to the surgical requirements, select the appropriate combination of the first-stage sleeve 2, the second-stage sleeve 3 and the third-stage sleeve 4 to ensure that their diameters and lengths meet the surgical requirements. The doctor inserts the first-stage sleeve 2, the second-stage sleeve 3 and the third-stage sleeve 4 into the patient's bone position step by step through the grip 5 and the connecting rod 1. According to the specific position of the bone, the doctor can sleeve the second-stage sleeve 3 into the inner cavity of the first-stage sleeve 2 to extend the length of the first-stage sleeve 2. If a longer guiding length is required, the third-stage sleeve 4 can be further sleeved into the inner cavity of the second-stage sleeve 3. One end of the suture passes through the cavity of the third-stage sleeve 4, and the wire will adjust its direction under step-by-step guidance and finally pass out from the other end to reach the target position. During the process of sleeving the second-stage sleeve 3 and the third-stage sleeve 4, the doctor presses one end of the limiting block 8, and the limiting block 8 squeezes the spring 9, causing the spring 9 to deform and providing space for the sleeving of the second-stage sleeve 3 and the third-stage sleeve 4. After the sleeving is completed, the doctor releases the limiting block 8, and the restoring elastic force of the spring 9 pushes one end of the limiting block 8 to move outward and contact the retaining ring 6 to form a clamping connection. In this way, the second-stage sleeve 3 and the third-stage sleeve 4 are firmly fixed in the inner cavity of the first-stage sleeve 2 and will not shift during the operation. Through the multi-stage nesting design, the first-stage sleeve 2, the second-stage sleeve 3 and the third-stage sleeve 4 are nested step by step, and the doctor can flexibly adjust the length and curvature of the wire-sheathing structure according to the surgical requirements, enabling the wire to accurately reach the target position under step-by-step guidance, greatly improving the accuracy and success rate of the operation.
[0038] The standard parts used in this application document can all be purchased from the market, and can also be customized according to the descriptions in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. The control method is to automatically control through a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art, which belongs to the common general knowledge in this field. And this application document is mainly used to protect the mechanical device, so the control method and circuit connection will not be explained in detail in this application document.
[0039] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.
[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A multi-level nested wire structure and a method of using the same, comprising a connecting rod (1), characterized in that: One end of the connecting rod (1) is fixedly connected to a primary sleeve (2), the inner cavity of the primary sleeve (2) is sleeved with a secondary sleeve (3), the inner cavity of the secondary sleeve (3) is sleeved with a tertiary sleeve (4), the end of the connecting rod (1) away from the primary sleeve (2) is fixedly connected to a handle (5), the primary sleeve (2), the secondary sleeve (3) and the tertiary sleeve (4) are used to guide the wire, and the ends of the secondary sleeve (3) and the tertiary sleeve (4) close to the primary sleeve (2) are fixedly connected to retaining rings (6), the retaining ring (6) is used to limit the position of the secondary casing (3) and the tertiary casing (4), the connecting rod (1) is provided with a limiting hole (7) at one end close to the primary casing (2), the inner cavity of the limiting hole (7) is equipped with a limiting block (8), one end of the limiting block (8) passes through the outside of the limiting hole (7) and is clamped with the retaining ring (6), the inner cavity of the limiting hole (7) is also equipped with a spring (9), the limiting block (8) and the spring (9) are used to fix the secondary casing (3) and the tertiary casing (4).
2. A multi-level nested wire structure and a method of using the same according to claim 1, characterized in that: The primary casing (2), the secondary casing (3) and the tertiary casing (4) are all in the shape of circular arcs with the same curvature and their diameters decrease one by one.
3. A multi-level nested wire structure and a method of using the same according to claim 1, characterized in that: One end of the spring (9) is fixedly connected to the limiting block (8), and the other end of the spring (9) is fixedly connected to the inner wall of the limiting hole (7).
4. The multi-level nested wire structure and the method of using the same according to claim 1, characterized in that: The inner wall of the limiting hole (7) is provided with a sliding groove (10), the inner cavity of the sliding groove (10) is slidably connected with a sliding block (11), and the end of the sliding block (11) away from the sliding groove (10) is fixedly connected to the limiting block (8).
5. The multi-level nested wire structure and the method of using the same according to claim 1, characterized in that: The primary sleeve (2), the secondary sleeve (3) and the tertiary sleeve (4) are all hollow tubes, and the material may be medical stainless steel or titanium alloy.
6. The multi-level nested wire structure and the method of using the same according to claim 1, characterized in that: The diameter of the primary casing (2) is greater than the diameter of the secondary casing (3), and the diameter of the secondary casing (3) is greater than the diameter of the tertiary casing (4).
7. A method for using a multi-level nested wire structure according to any one of claims 1 to 6, characterized in that: The steps for using it are as follows: First, the connecting rod (1) and the handle (5) are installed. The doctor can insert the primary sleeve (2), the secondary sleeve (3) and the tertiary sleeve (4) into the patient's bone position through the handle (5) and the connecting rod (1). According to the bone position, the secondary sleeve (3) is sleeved into the inner cavity of the primary sleeve (2). The length of the primary sleeve (2) can be extended through the secondary sleeve (3). The tertiary sleeve (4) can be further sleeved into the inner cavity of the secondary sleeve (3). The guiding length is further extended through the tertiary sleeve (4). One end of the suture is inserted through the cavity of the tertiary sleeve (4). The wire will adjust its direction under the step-by-step guidance so that it passes out from the other end and finally reaches the target position, thereby guiding the suture. When the secondary sleeve (3) and the tertiary sleeve (4) are sleeved, one end of the limit block (8) is pressed, and the limit block (8) squeezes the spring (9), causing the spring (9) to deform. After the secondary sleeve (3) and the tertiary sleeve (4) are sleeved, the limit block (8) is released, and the return elastic force of the spring (9) pushes one end of the limit block (8) to move outward and contact with the retaining ring (6), thereby forming a clamping connection, thereby fixing the secondary sleeve (3) and the tertiary sleeve (4), and preventing the secondary sleeve (3) and the tertiary sleeve (4) from deviating during the surgical operation.