Intramedullary nail device for realizing mechanical enhancement through photocuring

Abstract

The utility model provides an intramedullary nail device achieving mechanical enhancement through photocuring, and belongs to the technical field of orthopedic medical treatment. Comprising an expandable balloon and an introduction sheath sleeve, the expandable balloon is of a long-strip cylindrical structure, an injection cavity is formed in the expandable balloon, and an injection opening is formed in the end of the expandable balloon; and the introduction sheath is wound and wrapped outside the expandable balloon. And a micro sheath is adaptively mounted at an injection port of the expandable balloon. The micro sheath is in communication with the expandable balloon. And an injection needle tube is arranged on the micro sheath. And a positioning guide wire penetrates into the micro sheath. And the positioning guide wire penetrates through the injection port and enters the interior of the expandable balloon. According to the intramedullary nail, due to the arrangement of the expandable balloon, operation steps are optimized, operation efficiency is improved, the photocuring process is easy to control, operation of a doctor is facilitated, and the intramedullary nail after photocuring can show higher strength when being stressed, so that deformation and displacement of a fracture part are more effectively resisted.

Description

TECHNICAL FIELD

[0001] The utility model relates to orthopedics medical technical field especially relates to a kind of intramedullary nail device for realizing mechanics enhancement by light solidification. BACKGROUND

[0002] Intramedullary nail is the orthopedics internal fixation instrument in medical instrument, intramedullary nail is placed in bone marrow cavity for the long strip implant for fracture fixation, in prior art, its structure usually includes intramedullary nail rod, and proximal locking screw hole, locking screw positioning screw hole, connecting sleeve positioning groove etc. are arranged at the proximal end of intramedullary nail rod. On the surface of intramedullary nail rod, there can be decompression plane, these planes can extend from the proximal end of intramedullary nail rod to the distal end, help to reduce stress concentration and promote fracture healing, can control the axial force line of fracture site, prevent fracture rotation deformity, central fixation, elastic fixation, avoid stress shielding effect, reduce the incidence of refracture. The number of fracture patients is increasing, and the demand for fracture treatment is also increasing. In the above technical solution, the surgical wound is large, and the speed of operation is low. Therefore, the present application provides an intramedullary nail device for realizing mechanics enhancement by light solidification to meet the demand. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide an intramedullary nail device for realizing mechanics enhancement by light solidification to solve the problem of large surgical wound and low operation speed in the prior art.

[0004] To solve the above technical problems, the utility model provides the following technical scheme:

[0005] An intramedullary nail device for realizing mechanics enhancement by light solidification, comprising an inflatable balloon and an introduction sheath.

[0006] The inflatable balloon has a long cylindrical structure and an injection cavity inside, and an injection port is formed at the end of the inflatable balloon.

[0007] Optionally, a micro-puncture sheath is fitted and installed at the injection port of the inflatable balloon.

[0008] Optionally, the micro-puncture sheath is in communication with the inflatable balloon.

[0009] Optionally, an injection needle tube is provided on the micro-puncture sheath.

[0010] Optionally, a positioning guide wire is inserted into the micro-puncture sheath.

[0011] Optionally, the positioning guide wire passes through the injection port and enters the inflatable balloon.

[0012] Compared with the prior art, the utility model has at least the following advantages:

[0013] In the above scheme, thanks to the arrangement of the inflatable balloon, the surgical steps are optimized, the surgical efficiency is improved, the photocuring process is easy to control, the surgeon is facilitated, the intramedullary nail after photocuring can exhibit higher strength when stressed, thereby more effectively resisting deformation and displacement of the fracture site, the photocuring treatment can increase the contact area and friction between the intramedullary nail and the bone, thereby improving the stability, reducing the risk of surgical failure due to loosening, promoting fusion and bone healing between the bone and the intramedullary nail, and using a minimally invasive surgical method for implantation, causing less trauma to the patient and faster postoperative recovery. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the application and, together with the description, further serve to explain the principles of the application and to enable a person skilled in the relevant art to implement and use the application.

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of the inflatable balloon;

[0016] Figure 2 is a schematic diagram of the three-dimensional structure of the inflatable balloon in the expanded state.

[0017] Reference signs:

[0018] 1, inflatable balloon; 2, introduction sheath; 3, injection port; 4, injection needle tube; 5, micro-puncture sheath; 51, micro-puncture sheath body; 52, insertion part; 53, positioning step; 54, injection mounting part; 6, positioning guide wire.

[0019] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for illustration and is not intended to limit the present application to this specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0020] A kind of intramedullary nail device for realizing mechanical enhancement by photocuring provided by the utility model is described in detail below in combination with drawings and specific embodiments. It is explained here that in order to make the embodiments more detailed, the following embodiments are the best, preferred embodiments, and other alternative ways can also be used by those skilled in the art to implement for some known technologies;And the drawings are only for more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0021] It is to be noted that the terms "one embodiment," "an embodiment," "some embodiments," "one specific embodiment," or "some specific embodiments," as may be used herein, are not to be interpreted as specifying a single preferred embodiment or a specific set of embodiments, but rather are to be interpreted broadly to mean one or more embodiments including at least the specific embodiment explicitly described. Additionally, the use of descriptive terms such as "about," "approximately," "substantially," or "almost" are used herein to indicate approximate equality.

[0022] In general, the terminology or nomenclature used herein is understood to be used in a broad sense and in accordance with contextual usage, unless specifically intended to convey a more restricted meaning as understood by those having ordinary skill in the relevant arts. For example, the term "or" as used herein, can be used in the sense of inclusive or in the sense of exclusive "or" where the context permits. Additionally, as used herein, the term "based on" can be understood as not necessarily intended to convey an exhaustive list of factors, but rather, can instead, depending on the context, be intended to allow for the existence of other factors that were not expressly described, provided those factors do not exclude the recited or other claimed factors.

[0023] It is to be understood that the terms "on," "over," and "above" in the present disclosure are to be interpreted in the broadest context possible so that "on" not only means "directly on" something but also includes the meaning of being "on" something with intervening features or layers therebetween, and "over" or "above" not only means "over" or "above" something but also can include the meaning of being "over" or "above" something without intervening features or layers therebetween.

[0024] Further, spatially relative terms, such as "under", "below", "lower", "over", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as depicted in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0025] As shown in Figure 1 and Figure 2 The utility model provides a kind of intramedullary nail device for realizing mechanical enhancement by photocuring, including inflatable balloon 1 and introduction sheath 2;Uninflated inflatable balloon 1 is long strip cylindrical structure, inflatable balloon 1 is after inflation and is in drum structure, middle part diameter is big, both end part diameter;It has injection cavity inside, one end of inflatable balloon 1 is closed structure, and injection port 3 is set in the other end, which is communicated with injection cavity;Introduction sheath 2 is spirally wrapped in the outside of inflatable balloon 1.

[0026] The micro-sheath 5 comprises a micro-sheath body 51, one end of the micro-sheath body 51 is an insertion part 52, and a positioning step 53 is formed between the insertion part 52 and the micro-sheath body 51. The micro-sheath body 51 and the insertion part 52 are internally provided with a main channel in communication, the micro-sheath body 51 is provided with an injection mounting part 54, the injection mounting part 54 is internally provided with an injection channel, and the injection channel is in communication with the main channel in the micro-sheath body 51 and the insertion part 52. Specifically, a circular through hole is punched in the length direction of the micro-sheath body 51 and the insertion part 52, and the through hole forms the main channel; a circular through hole is punched in the length direction of the injection mounting part 54, and the through hole forms the injection channel.

[0027] The insertion part 52 of the micro-sheath 5 is inserted into the injection port 3 of the inflatable balloon 1, and the positioning step 53 of the micro-sheath 5 abuts against the end face of the inflatable balloon 1. The main channel is in communication with the injection cavity of the inflatable balloon 1. The injection mounting part 54 of the micro-sheath 5 is mounted with an injection needle tube 4, and the injection cavity in the injection needle tube 4 is in communication with the channel inside the micro-sheath 5. The channel inside the micro-sheath 5 is penetrated by a positioning guide wire 6. The positioning guide wire 6 passes through the injection port 3 and enters the injection cavity of the inflatable balloon 1. Specifically, the injection needle tube 4 is a commonly used injection needle tube in the prior art.

[0028] The technical scheme of the utility model has the following working process:

[0029] In use, the micro-sheath 5 is inserted into the injection port 3, then the positioning guide wire 6 is passed through the micro-sheath 5, the positioning guide wire 6 enters the inflatable balloon 1, and during the operation process, the inflatable balloon 1 and the introduction sheath 2 are inserted into the medullary cavity through the kirschner wire at the medullary cavity opening, the introduction sheath 2 is wrapped on the outside of the inflatable balloon 1, and is used for wrapping the inflatable balloon 1 and being placed at a required position, then the injection needle tube 4 is mounted with the micro-sheath 5, a special biocompatible liquid is injected into the inflatable balloon 1 through the injection needle tube 4 to fill the balloon, so that the inflatable balloon 1 is inflated and conforms to the shape, the implant is a photocuring liquid, and the implant is solidified by visible light as required, so that the endoprosthesis forming can be completed, and the implant provides strength and rotational stability for the bone;

[0030] The photocuring technology is a rapid manufacturing technology based on digital model files, and a three-dimensional entity model is constructed by layer-by-layer stacking of materials. In the intramedullary nail device, the photocuring technology can be used for reinforcing treatment of specific parts of the intramedullary nail to improve the mechanical properties. Specifically, the technology uses light of a specific wavelength (such as ultraviolet light or laser) to irradiate the surface or interior of the intramedullary nail containing photosensitive material, triggers a photochemical reaction, and makes the material rapidly solidify and form a hard solid structure.

[0031] The utility model covers any alternative, modification, equivalent method and scheme which are made on the essence and range of the utility model. In order to make the public have the thorough understanding of the utility model, the specific details are explained in the following preferred embodiment of the utility model, and the utility model can also be completely understood without the description of these details for the person skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the utility model, the well-known method, process, flow, element and circuit are not explained in detail.

[0032] The above only is the preferred implementation of the utility model, should point out, for the ordinary skill in the art of the present technology, on the premise of not departing from the principle of the utility model, still can make a number of improvement and embellishment, these improvements and embellishment also should be regarded as the protection range of the utility model.

Claims

1. An intramedullary nail device for achieving mechanical reinforcement by photocuring, characterized in that, The expandable balloon and the introduction sheath are provided. The expandable balloon is a long cylindrical structure, and has an injection cavity inside. The injection port is provided at the end of the expandable balloon.

2. Intramedullary nail device for achieving mechanical reinforcement by light solidification according to claim 1, characterized in that, The introduction sheath is wrapped outside the expandable balloon.

3. Intramedullary nail device for achieving mechanical reinforcement by light solidification according to claim 2, characterized in that, The micro-sheath is fitted and installed at the injection port of the expandable balloon.

4. Intramedullary nail device for achieving mechanical reinforcement by light solidification according to claim 3, characterized in that, The micro-sheath is in communication with the expandable balloon.

5. Intramedullary nail device for achieving mechanical reinforcement by light solidification according to claim 4, characterized in that, The micro-sheath is provided with an injection needle tube.

6. Intramedullary nail device for achieving mechanical reinforcement by light solidification according to claim 5, characterized in that, The micro-sheath is provided with a positioning guide wire inside. The positioning guide wire passes through the injection port and enters the expandable balloon.

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