Integrated minimally invasive fracture fixing device

By designing minimally invasive fracture fixation devices with connecting plates, connecting rods, fixing rings and absorbable materials, the problem of unstable connections at the existing devices at the bending bones is solved, and stable and flexible fracture fixation is achieved to adapt to bone rotation and reduce damage to bone marrow.

CN223196141UActive Publication Date: 2025-08-08FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA
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Patent Information

Application Number
CN202422157479.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-03
Publication Date
2025-08-08
Estimated Expiration
2034-09-03

AI Technical Summary

Technical Problem

The existing integrated minimally invasive fracture fixation device is unstable when encountering a bent bone, which is prone to collapse, and the steel plate and bone fit poorly, affecting the fixing effect.

Method used

A minimally invasive fracture fixing device composed of components such as connecting plates, connecting rods, fixing rings, connecting belts and inner nails. Through the connecting belt, the connecting belt is penetrated through the fixing ring, and the long nails are fully connected to the bone. It is equipped with absorbable materials and elastic bands to improve stability and flexibility. The inner nail tail cap can be detached to protect the bone marrow, and the inner nail is fixed to the inside of the bone through a sleeve and a screw.

Benefits of technology

The stable connection at the bending bone is achieved, the damage to the bone marrow is reduced, the stability and flexibility of the device are improved, the fit with the bone is enhanced, and the rotation of the bone is adapted to the bone, and the fixation effect is provided.

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Abstract

The utility model discloses an integrated minimally invasive fracture fixing device, which relates to the technical field of medical instruments and comprises a connecting plate, one side of the connecting plate is fixedly connected with a connecting rod, one end of the connecting rod is fixedly connected with a fixing ring, a connecting belt is inserted into the fixing ring, one side of the fixing ring is fixedly connected with a connecting nut, and the connecting nut is fixedly connected with the connecting rod. A connecting belt is connected to the interior of the fixing ring in a penetrating mode, and a plurality of sets of inner nails penetrate through the interior of the connecting plate. Under the action of the long nail of the fixing band, the long nail can be more comprehensively connected with a bone, one end of the long nail is fixedly connected with the elastic rope so that the device can be conveniently connected with a ligament, meanwhile, the inner medullary nail tail cap at one end of the long nail can be taken down during use and continues to be connected, and the inner medullary nail tail cap can be connected to the long nail when connection is not needed. The internal marrow can be prevented from being damaged by one side, the absorbable detachable material is adopted, and the connecting plate can enable nervous tissue to be better attached to the bone.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, and in particular to an integrated minimally invasive fracture fixation device. Background Art

[0002] Minimally invasive bone surgery refers to minimally invasive surgery, primarily performed using modern medical devices such as laparoscopes, thoracoscopes, and arthroscopes, as well as related surgical equipment. Its main advantages over traditional open surgery include less trauma, less pain, faster recovery, shorter hospital stays, and less bleeding during surgery. To promote efficient fracture healing, minimally invasive fracture fixation is necessary. Orthopedic fracture fixation devices include various types of plates, such as conventional plates, compression plates, and locking plates. These plates are categorized into upper limb, lower limb, and various anatomical plates, depending on the location of the fracture. There are numerous types of plates.

[0003] The existing technology has the following problems:

[0004] 1. Existing integrated minimally invasive fracture fixation devices are fixed with steel nails. However, when encountering bent bones, the connection is easily broken, making the device connection unstable and causing damage to the bone.

[0005] 2. The existing integrated minimally invasive fracture fixation device has a poor fit between the steel plate and the bone, which affects the fixation effect and makes it difficult for the connected bone screws to fuse. Utility Model Content

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] An integrated minimally invasive fracture fixation device includes a connecting plate, one side of the connecting plate is fixedly connected to a connecting rod, one end of the connecting rod is fixedly connected to a fixing ring, a connecting belt is inserted into the interior of the fixing ring, one side of the fixing ring is fixedly connected to a connecting nut, the interior of the fixing ring is penetrated by a connecting belt, and the interior of the connecting plate is penetrated by multiple groups of internal nails.

[0008] A further improvement of the technical solution of the present utility model is that: the connecting plate includes a rubber pad, the interior of the rubber pad is fixedly connected to a fixing plate, one side of the fixing plate is fixedly connected to an elastic band, and the interior of the elastic band is fixedly connected to a support rod.

[0009] A further improvement of the technical solution of the present invention is that: both ends of the support rod are fixedly connected to the inner wall of the rubber pad, and a certain number of support rods play a fixing role.

[0010] A further improvement of the technical solution of the present utility model is that: the connecting belt includes a long nail, the long nail passes through the interior of the fixing ring, the interior of the long nail is fixedly connected to an elastic rope, one end of the long nail is movably connected to the end cap of the intramedullary nail, and the connecting nut includes a connecting tube, and a fixing rivet is inserted into the interior of the connecting tube.

[0011] A further improvement of the technical solution of the present utility model is that: the connecting belt is fixed to the inside of the fixing ring through a connecting nut, and the fixing rivet fixes the long nail.

[0012] A further improvement of the technical solution of the present utility model is that: the inner nail includes a connecting bottom, the bottom of the connecting bottom is fixedly connected to the top of the connecting plate, a sleeve is connected through the inside of the connecting bottom, a fixing nail is provided on the top of the sleeve, the bottom of the fixing nail is fixedly connected to a screw, the bottom of the screw is fixedly connected to a bone screw, and a fixing cap is sleeved on the top of the sleeve.

[0013] A further improvement of the technical solution of the present utility model is that: the screw rod passes through the interior of the sleeve, and the fixing cap plays a role in connecting and fixing the sleeve.

[0014] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0015] 1. The utility model provides an integrated minimally invasive fracture fixation device, which is connected to the connecting plate through a connecting rod, and the connecting belt passes through the interior of the fixing ring to play a better connecting role. Then, under the action of the long nail of the fixing belt, the long nail can be more comprehensively connected to the bone. One end of the long nail is fixedly connected with an elastic rope to facilitate the connection of the device with the ligament. At the same time, the tail cap of the intramedullary nail at one end can be removed when in use and continue to be connected. When the connection is not needed, the tail cap of the intramedullary nail can be connected to it, which can prevent one side from causing damage to the intramedullary nail, making the device more convenient to use.

[0016] 2. The utility model provides an integrated minimally invasive fracture fixation device. Since the volume of the connecting plate and the connecting belt of the device is very small and they are implanted into the body, the whole device adopts absorbable removable materials. The connecting plate can make the nerve tissue and the bone fit better. The inside of the rubber pad is provided with an elastic belt to make the device connection stable and there is tension space when the bone rotates, making the device more flexible to use. The outer wall of the connecting plate is installed with a connecting rod and a fixing ring to facilitate the adjustment of the connecting belt inside the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of the integrated minimally invasive fracture fixation device of the present invention;

[0018] Figure 2 This is a structural diagram of the connecting plate of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the connecting belt of the present invention;

[0020] Figure 4 This is a schematic structural diagram of the inner nail of the present invention.

[0021] In the figure: 1. Connecting plate; 2. Connecting rod; 3. Fixing ring; 4. Connecting belt; 5. Connecting nut; 6. Internal nail; 11. Rubber pad; 12. Support rod; 13. Elastic belt; 14. Fixing plate; 41. Tail cap of intramedullary nail; 42. Elastic rope; 43. Long nail; 51. Connecting tube; 52. Fixing rivet; 61. Connecting bottom; 62. Sleeve; 63. Fixing nail; 64. Screw; 65. Bone screw; 66. Fixing cap. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below with reference to the embodiments:

[0023] Example 1

[0024] like Figure 1-4 As shown, the utility model provides an integrated minimally invasive fracture fixation device, including a connecting plate 1, one side of the connecting plate 1 is fixedly connected to a connecting rod 2, one end of the connecting rod 2 is fixedly connected to a fixing ring 3, a connecting belt 4 is inserted into the interior of the fixing ring 3, one side of the fixing ring 3 is fixedly connected to a connecting nut 5, the interior of the fixing ring 3 is penetrated by the connecting belt 4, and the interior of the connecting plate 1 is penetrated by multiple groups of internal nails 6.

[0025] In this embodiment, the device can be made more convenient to use through the joint action of the connecting plate 1, the connecting belt 4 and the inner nail 6. The volume of the connecting plate 1 and the connecting belt 4 is very small and can be directly implanted into the body. The overall device uses absorbable materials. The outer wall of the connecting plate 1 is installed with a connecting rod 2 and a fixing ring 3 to facilitate the adjustment of the connecting belt 4 inside the device, making the device more convenient to use.

[0026] Example 2

[0027] like Figure 1-4 As shown, based on Example 1, the utility model provides a technical solution: preferably, the connecting plate 1 includes a rubber pad 11, the interior of the rubber pad 11 is fixedly connected to a fixing plate 14, one side of the fixing plate 14 is fixedly connected to an elastic band 13, and the interior of the elastic band 13 is fixedly connected to a support rod 12.

[0028] Both ends of the support rod 12 are fixedly connected to the inner wall of the rubber pad 11 , and a certain number of support rods 12 play a fixing role.

[0029] In this embodiment, the combined action of the rubber pad 11 and the elastic band 13 can make the device more convenient to use. The connecting plate 1 can fit one side of the fracture and be fixed by the fixing device. However, the nerve tissue connected to the skin surface is not fixed, so the connecting plate 1 can make the nerve tissue and the bone better integrated. The elastic band 13 is provided inside the rubber pad 11, so that the device connection is stable and there is tension space when the bone rotates, making the device more flexible to use. However, the device also needs a certain fixed supporting force to protect the connecting device, so it is connected through multiple groups of support rods 12 to make the device more stable to use.

[0030] Example 3

[0031] like Figure 1-4 As shown, based on Example 1, the utility model provides a technical solution: preferably, the connecting belt 4 includes a long spike 43, the long spike 43 passes through the interior of the fixing ring 3, the interior of the long spike 43 is fixedly connected to the elastic rope 42, one end of the long spike 43 is movably connected to the inner medullary nail tail cap 41, and the connecting nut 5 includes a connecting tube 51, and the interior of the connecting tube 51 is inserted with a fixing rivet 52.

[0032] The connecting belt 4 is fixed to the inside of the fixing ring 3 through the connecting nut 5, and the fixing rivet 52 fixes the long nail 43.

[0033] In this embodiment, the device connection can be made more fixed by the joint action of the connecting rod 2, the fixing ring 3, the connecting belt 4 and the connecting nut 5. The connecting rod 2 is connected to the connecting plate 1, and the connecting belt 4 passes through the interior of the fixing ring 3 to play a better connection role. Then, under the action of the long nail 43 of the fixing belt, the long nail 43 can be more comprehensively connected to the bone. One end of the long nail 43 is fixedly connected to the elastic rope 42 to facilitate the connection between the device and the ligament. At the same time, the end cap 41 of the intramedullary nail can be removed when in use and continue to be connected. When the connection is not needed, the end cap of the intramedullary nail can be connected to it, which can prevent one side from causing damage to the intramedullary bone, making the device more convenient to use.

[0034] Example 4

[0035] like Figure 1-4 As shown, based on Example 1, the utility model provides a technical solution: preferably, the inner nail 6 includes a connecting bottom 61, the bottom of the connecting bottom 61 is fixedly connected to the top of the connecting plate 1, the interior of the connecting bottom 61 is connected with a sleeve 62, the top of the sleeve 62 is provided with a fixing nail 63, the bottom of the fixing nail 63 is fixedly connected to a screw 64, the bottom of the screw 64 is fixedly connected to a bone screw 65, and the top of the sleeve 62 is sleeved with a fixing cap 66.

[0036] The screw 64 passes through the interior of the sleeve 62 , and the fixing cap 66 connects and fixes the sleeve 62 .

[0037] In this embodiment, the device can be made more stable to use through the joint action of the connecting base 61, sleeve 62, screw 64 and bone screw 65. The screw 64 can forcibly fix the bone screw 65 inside the bone, and then fix it with a knob through the fixing nail 63. The sleeve 62 is inserted into the middle part of the device to facilitate the screw 64 to climb, and there is a support point to make the device connection more stable.

[0038] The working principle of the integrated minimally invasive fracture fixation device is described in detail below.

[0039] like Figure 1-4 As shown, when this integrated minimally invasive fracture fixation device is in use, the volume of the connecting plate 1 and the connecting belt 4 is very small and can be directly implanted into the body. The overall device adopts absorbable removable materials. The outer wall of the connecting plate 1 is installed with a connecting rod 2 and a fixing ring 3, which is convenient for the connecting belt 4 to be adjusted inside the device, making the device more convenient to use. The connecting plate 1 can fit one side of the fracture and be fixed by the fixing device, but the nerve tissue connected to the skin surface is not fixed, so the nerve tissue and the bone can be better fused through the connecting plate 1. The inside of the rubber pad 11 is provided with an elastic belt 13, which makes the device connection stable and can cooperate with the bone rotation. There is tension space, making the device more flexible to use, but the device also needs to have a certain fixed support force to protect the connecting device, so it is carried out through multiple groups of support rods 12. The connection makes the device more stable to use. It is connected to the connecting plate 1 through the connecting rod 2, and the connecting belt 4 passes through the interior of the fixing ring 3 to play a better connection role. Then, under the action of the long nail 43 of the fixing belt, the long nail 43 can be more comprehensively connected to the bone. One end of the long nail 43 is fixedly connected with an elastic rope 42 to facilitate the connection of the device to the ligament. At the same time, the endocrine nail tail cap 41 at one end can be removed when in use and continue to be connected. When the connection is not required, the endocrine nail tail cap can be connected to it, which can prevent one side from causing damage to the endomedulla, making the device more convenient to use. The screw 64 can forcibly fix the bone nail 65 to the inside of the bone, and then the knob is fixed by the fixing nail 63. The sleeve 62 is inserted into the middle part of the device to facilitate the screw 64 to climb, and there is a support point to make the device connection more stable.

[0040] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An integrated minimally invasive fracture fixation device, comprising a connecting plate (1), characterized in that: One side of the connecting plate (1) is fixedly connected to a connecting rod (2), one end of the connecting rod (2) is fixedly connected to a fixing ring (3), a connecting belt (4) is inserted into the interior of the fixing ring (3), one side of the fixing ring (3) is fixedly connected to a connecting nut (5), the interior of the fixing ring (3) is penetrated by a connecting belt (4), and the interior of the connecting plate (1) is penetrated by multiple groups of internal nails (6).

2. The integrated minimally invasive fracture fixation device according to claim 1, characterized in that: The connecting plate (1) comprises a rubber pad (11), the interior of the rubber pad (11) is fixedly connected to a fixing plate (14), one side of the fixing plate (14) is fixedly connected to an elastic band (13), and the interior of the elastic band (13) is fixedly connected to a support rod (12).

3. The integrated minimally invasive fracture fixation device according to claim 2, characterized in that: The two ends of the support rod (12) are fixedly connected to the inner wall of the rubber pad (11), and the number of support rods (12) plays a fixing role.

4. The integrated minimally invasive fracture fixation device according to claim 1, characterized in that: The connecting belt (4) includes a long spike (43), the long spike (43) passes through the interior of the fixing ring (3), the interior of the long spike (43) is fixedly connected to an elastic rope (42), one end of the long spike (43) is movably connected to an inner medullary nail tail cap (41), and the connecting nut (5) includes a connecting tube (51), the interior of the connecting tube (51) is plugged with a fixing rivet (52).

5. The integrated minimally invasive fracture fixation device according to claim 4, characterized in that: The connecting belt (4) is fixed to the inside of the fixing ring (3) via a connecting nut (5), and the fixing rivet (52) fixes the long nail (43).

6. The integrated minimally invasive fracture fixation device according to claim 1, characterized in that: The inner nail (6) includes a connecting bottom (61), the bottom of the connecting bottom (61) is fixedly connected to the top of the connecting plate (1), the interior of the connecting bottom (61) is connected with a sleeve (62), the top of the sleeve (62) is provided with a fixing nail (63), the bottom of the fixing nail (63) is fixedly connected to a screw (64), the bottom of the screw (64) is fixedly connected to a bone screw (65), and the top of the sleeve (62) is sleeved with a fixing cap (66).

7. The integrated minimally invasive fracture fixation device according to claim 6, characterized in that: The screw (64) passes through the interior of the sleeve (62), and the fixing cap (66) plays a role in connecting and fixing the sleeve (62).