CN214966463U - 3D printed radius distal end fracture reduction brace - Google Patents
3D printed radius distal end fracture reduction brace Download PDFInfo
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- CN214966463U CN214966463U CN202022976891.8U CN202022976891U CN214966463U CN 214966463 U CN214966463 U CN 214966463U CN 202022976891 U CN202022976891 U CN 202022976891U CN 214966463 U CN214966463 U CN 214966463U
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Abstract
The utility model belongs to the technical field of the medical instrument technique and specifically relates to a radius distal end fracture brace that 3D printed, including back of the hand percutaneous baffle, forearm near-end outside percutaneous baffle and be located the brace main part between the two, all be equipped with two guide pin holes on back of the hand percutaneous baffle and the forearm near-end outside percutaneous baffle, the guide pin of being convenient for passes the skeleton of hand or forearm near-end through a guide pin hole to wear out through another guide pin hole, the brace main part is used for the package to tie up and fix the fracture position. The support of the utility model, through the hand back percutaneous guide plate and the forearm near-end outside percutaneous guide plate penetrate the guide pin, fix the hand skeleton and forearm near-end skeleton respectively, keep traction force after manual reduction, and tie up the limbs between the two percutaneous guide plates through the support main body, fix the fracture position, do benefit to the fracture face to stabilize, do not produce the displacement, the three forms elastic fixation, do benefit to the union of fracture; the recovery of joint function is not affected; the 3D printing personalized customization is adopted in the brace, and the brace is more attached, comfortable and attractive after being worn.
Description
Technical Field
The utility model belongs to the technical field of the medical instrument technique and specifically relates to a radius distal end fracture brace that resets that 3D printed.
Background
Currently, plasters, splints, polymeric bandages and the like are commonly used as external fixation materials in the treatment of bone fractures. The traditional Chinese medicine bonesetting small splint external fixation is one of the most distinctive therapies of the traditional Chinese medicine orthopedics department, skillfully utilizes the biomechanics of splint elasticity-pressure pad pressurization from the viewpoints of dynamic and static combination and muscle and bone weight, promotes the healing of fracture ends, but has poor splint air permeability, usually has peculiar smell, and the edges press the skin to cause pain of patients, and the probability of fracture of joint fixation is higher. After gypsum is solidified, the cavity volume of the gypsum cannot be changed again, so that limb periosteum syndrome, muscle ischemia and necrosis can be caused if the fracture part is wrapped too tightly, and ischemic muscle contracture and even limb gangrene can occur; although comfortable and portable, the polymer bandage has hard edge, rubs skin and has poor shaping, so the polymer bandage cannot be used for the reduction of severe fracture. In order to solve the defects of the traditional external fixing material, the traditional Chinese medicine bonesetting splint external fixing technology is subjected to digital modeling by using computer-aided design and is combined with a 3D printing (3D printing) technology, which is called as a digital manufacturing technology with modern significance, is a rapid forming and processing mode in the modern industrial technology, and the 3D printing technology is combined with a small splint technology, so that the small splint technology is researched by digitalization and quantification, and an external fixing brace which is more appropriate, good in air permeability and attractive and comfortable to wear is designed. The external fixation brace can achieve the purpose of treatment, avoid the injury of external fixation to limbs and improve the stability of the external fixation brace.
The radius distal end fracture is very common, approximately occupies 1/10 of fracture at ordinary times, and aiming at the radius distal end fracture, the traditional Chinese medicine bonesetting and 3D printing technology are combined to develop a 3D printing radius distal end fracture brace which can be customized individually for different patients, so that the brace can be more attached to the arms of the patients, is comfortable and attractive, simultaneously retains the elastic fixation in the traditional Chinese medicine bonesetting, does not generate stress shielding, and is favorable for promoting the healing of fracture.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a radius distal end fracture brace that 3D printed, this brace penetrates the guide pin through back of the hand percutaneous baffle and forearm near-end outside percutaneous baffle, fix hand skeleton and forearm near-end skeleton respectively, keep traction force, and tie up and fix the fracture position through brace main part package between the two, the stability of fracture face is favorable to, the displacement can not take place, the three cooperation, form elastic fixation, do not influence joint function and resume, and this brace adopts 3D printing mode preparation, to the individualized customization of different patients, wear to laminate more, comfortable, it is pleasing to the eye.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a 3D prints distal radius fracture brace that resets which characterized in that: including back of the hand percutaneous baffle, forearm near-end outside percutaneous baffle and be located the brace main part between the two, all be equipped with two guide pin holes on back of the hand percutaneous baffle and the forearm near-end outside percutaneous baffle, the bone of being convenient for the guide pin through a guide pin hole pass hand or forearm near-end to wear out through another guide pin hole, the brace main part is used for the package to tie up and fix the fracture position.
Specifically, the hand back percutaneous guide plate and the forearm near-end external percutaneous guide plate are respectively provided with a guide needle tube protruding towards two sides along two guide needle holes, so that the guide needles can conveniently and transversely pass through bones along the direction of the guide needle tube.
Specifically, the length of the needle guide tube is 10-12mm, and the inner diameter of the needle guide tube is 2 mm.
Specifically, the brace main body comprises a brace outer plate attached to the outer side of the forearm and a brace inner plate attached to the inner side of the forearm, and the brace outer plate and the brace inner plate are enclosed together to form the brace main body.
Specifically, the outer brace plate is provided with a plurality of positioning blocks or positioning grooves at the edge contacting with the inner brace plate, and the inner brace plate is provided with positioning grooves or positioning blocks matched with the positioning blocks or positioning grooves at the edge contacting with the outer brace plate;
the edge of the brace outer plate, which is in contact with the back of the hand through the skin guide plate, is provided with a plurality of positioning blocks or positioning grooves, and the edge of the back of the hand through the skin guide plate, which is in contact with the brace outer plate, is provided with positioning grooves or positioning blocks matched with the positioning blocks or positioning grooves;
the bracket outer plate is provided with a plurality of positioning blocks or positioning grooves at the edge contacted with the forearm near-end outer percutaneous guide plate, and the forearm near-end outer percutaneous guide plate is provided with positioning grooves or positioning blocks matched with the positioning blocks or positioning grooves at the edge contacted with the bracket outer plate.
Specifically, the brace outer plate and the brace inner plate, the brace outer plate and the back of the hand percutaneous guide plate and the brace outer plate and the forearm near-end outer percutaneous guide plate are fixed through lock catches.
Specifically, the lock catch comprises a first lock block, a second lock block, a locking bolt and a locking nut, wherein lock holes are formed in the first lock block and the second lock block, the first lock block and the second lock block are respectively fixed on two mutually-contacted plates, after the brace is placed in place, the lock holes in the first lock block and the second lock block are overlapped, and the locking bolt penetrates through the lock holes and is fixed through the locking nut.
Specifically, a locking bolt of the lock catch between the brace outer plate and the brace inner plate penetrates through the lock hole along the direction of a joint between the brace outer plate and the brace inner plate;
a locking bolt of the lock catch between the brace outer plate and the hand back percutaneous guide plate penetrates through the lock hole along the direction of a seam between the brace outer plate and the hand back percutaneous guide plate;
and a locking bolt of the lock catch between the brace outer plate and the outer side of the forearm near end percutaneous guide plate penetrates through the lock hole along the direction of a joint between the brace outer plate and the outer side of the forearm near end percutaneous guide plate.
Specifically, the brace body is provided with a plurality of hollow structures.
Specifically, the distal radius fracture reduction brace takes the length of the healthy side as a standard in the D printing process.
The utility model has the advantages that:
(1) the utility model discloses a 3D printed radius distal end fracture reduction brace (contains ulna fracture), penetrate the guide pin through back of the hand percutaneous baffle and forearm near-end outside percutaneous baffle, fix hand skeleton (first and second metacarpal) and forearm near-end skeleton (ulna near-end) respectively, after manual reduction, keep traction force, and tie up the limbs between two percutaneous baffles and fix the fracture position through brace main part between the two, be favorable to the stability of fracture face, can not take place the displacement, the three cooperation forms elastic fixation, stress-free shelters from, do benefit to the union of fracture, do not influence joint function and resume, this brace adopts 3D printing mode preparation, to different patient's individualized customization, it is more laminated, comfortable, pleasing to the eye to wear;
(2) the back of the hand percutaneous guide plate and the outer side of the near end of the forearm percutaneous guide plate are provided with guide needle tubes protruding towards two sides along guide needle holes and used for inserting guide needles, the guide needle tubes are arranged according to the bone positions of patients and the needle inserting direction when the support is designed, and after the guide plates are placed in place, the guide needles are directly driven into the guide needles along the guide needle tubes, so that the guide needles can penetrate through preset bones, and the guide needles can be conveniently, accurately and stably inserted;
(3) the edge of the brace main body connected with the hand back percutaneous guide plate or the outer side of the near end of the forearm percutaneous guide plate, or the edge of the brace outer plate connected with the brace inner plate is provided with a positioning block and a positioning groove which are matched with each other, so that the brace main body is beneficial to accurate positioning during wearing;
(4) the two adjacent plates are fixed by the lock catches, the direction of the locking bolts of the lock catches is consistent with the direction of the joint of the two plates, but not perpendicular to the direction of the joint, namely the separation direction of the two plates is perpendicular to the direction of the locking bolts, so that the fixation is firmer;
(5) set up a plurality of hollow out construction in the brace main part, can increase the gas permeability on the one hand, avoid the patient to wear for a long time and lead to the skin inflammation, can carry out acupuncture or compress medicine treatment through the fretwork position moreover, promote bone healing.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is an exploded view of the present invention (lock block one and lock block two are omitted);
in the figure: 1, a back of hand percutaneous guide plate; 2. the outer side of the near end of the forearm is a percutaneous guide plate; 3. a brace main body; 31. a brace outer plate; 32. a brace inner plate; 33. a hollow structure; 4. a needle guide tube; 51. positioning blocks; 52. positioning a groove; 6. locking; 61. locking a first block; 62. a second locking block; 63. locking the bolt; 64. and locking the nut.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
The utility model provides a 3D printed radius distal end fracture brace that resets, as shown in figure 1, including back of the hand percutaneous baffle 1, forearm near-end outside percutaneous baffle 2 and lie in brace main part 3 between the two, all be equipped with two guide pin holes on back of the hand percutaneous baffle 1 and the forearm near-end outside percutaneous baffle 2, the skeleton of being convenient for the guide pin to pass hand or forearm near-end through a guide pin hole to wear out through another guide pin hole, brace main part 3 is used for the package to tie up and fix the fracture position.
Penetrate the guide pin through the guide pin hole of back of the hand percutaneous baffle 1 and forearm near-end outside percutaneous baffle 2, fix hand skeleton (first two metacarpals) and forearm near-end skeleton (ulna near-end) respectively, after the manual method resets, keep traction force, and tie up the limbs between two percutaneous baffles and fix the fracture position through brace main part 3 package between the two, be favorable to the stability of fracture face, can not take place the displacement, the three cooperation, form elastic fixation, stress-free shelters from, do benefit to union, do not influence joint function and resume, this brace adopts 3D printing mode preparation, individuality customization to different patients, it fits more, it is comfortable, it is pleasing to the eye to wear.
In a specific embodiment, as shown in fig. 1, the dorsal surface percutaneous guide plate 1 and the proximal outer surface percutaneous guide plate 2 of the forearm are provided with guide pin tubes 4 protruding towards both sides along two guide pin holes, so that the guide pins can vertically and transversely pass through the bone along the direction of the guide pin tubes 4.
In the design process of the brace, a simulated needle path of a Kirschner wire is added on the basis of the bone on the affected side, the mirror image of the bone on the healthy side is used as comparison to obtain the position of the needle path after restoration, and then the hand back percutaneous guide plate 1 with the needle guide tube 4 and the forearm proximal end outer percutaneous guide plate 2 are obtained by taking the position as the brace according to the design.
In a specific embodiment, the length of introducer needle 4 is 10-12mm and the inner diameter of introducer needle 4 is 2 mm.
In a specific embodiment, as shown in fig. 2, the brace body 3 includes a brace outer plate 31 attached to the outer side of the forearm and a brace inner plate 32 attached to the inner side of the forearm, and the brace outer plate 31 and the brace inner plate 32 together enclose the brace body 3. The brace outer plate 31 and the brace inner plate 32 are enclosed together to wrap and fix the fracture part.
In the specific embodiment, the guide needles are firstly driven according to the guide needle tubes 4 of the dorsal percutaneous guide plate 1 and the forearm proximal outer percutaneous guide plate 2, and then the brace outer plate 31 and the brace inner plate 32 are arranged between the dorsal percutaneous guide plate 1 and the forearm proximal outer percutaneous guide plate; the brace outer plate 31 and the brace inner plate 32 are fixed by being wound with a composite suede adhesive tape. The brace outer plate 31 can be fixed with the hand back percutaneous guide plate 1 and the forearm near-end external percutaneous guide plate 2 by a composite suede adhesive tape, or can be fixed by a medical adhesive tape.
In a specific embodiment, as shown in fig. 2, the brace outer plate 31 is provided with a plurality of positioning blocks 51 or positioning grooves 52 at the edge contacting with the brace inner plate 32, and the brace inner plate 32 is provided with positioning grooves 52 or positioning blocks 51 matching with the positioning blocks 51 or positioning grooves 52 at the edge contacting with the brace outer plate 31; the support outer plate 31 is provided with a plurality of positioning blocks 51 or positioning grooves 52 at the edge contacting with the hand back percutaneous guide plate 1, and the hand back percutaneous guide plate 1 is provided with positioning grooves 52 or positioning blocks 51 matched with the positioning blocks 51 or the positioning grooves 52 at the edge contacting with the support outer plate 31; the support outer plate 31 is provided with a plurality of positioning blocks 51 or positioning grooves 52 at the edge contacting with the forearm proximal outer percutaneous guide plate 2, and the forearm proximal outer percutaneous guide plate 2 is provided with positioning grooves 52 or positioning blocks 51 matching with the positioning blocks 51 or the positioning grooves 52 at the edge contacting with the support outer plate 31. The brace outer plate 31 is positioned between the brace inner plate 32 and the brace outer plate 31 and between the hand back percutaneous guide plate 1 and the brace outer plate 31 and the forearm near-end external percutaneous guide plate 2 through the matching of the positioning block 51 and the positioning groove 52, so that the brace outer plate is convenient to wear in place quickly and accurately.
In one embodiment, as shown in fig. 1, the brace outer plate 31 and the brace inner plate 32, the brace outer plate 31 and the dorsum manus percutaneous guide 1, and the brace outer plate 31 and the forearm proximal end outer percutaneous guide 2 are fixed by the latch 6.
In the specific embodiment, the guide needles are firstly driven according to the guide needle tubes 4 of the dorsal percutaneous guide plate 1 and the forearm proximal outer percutaneous guide plate 2, and then the brace outer plate 31 and the brace inner plate 32 are arranged between the dorsal percutaneous guide plate 1 and the forearm proximal outer percutaneous guide plate; the brace outer plate 31 and the brace inner plate 32 are firstly wound and fixed by two composite suede adhesive tapes, and then fixed by the lock catch 6 arranged on the ulnar radius side on the brace outer plate 31 and the brace inner plate 32. The dorsum manus percutaneous guide plate 1 and the brace outer plate 31 are fixed by a lock catch 6 therebetween, and the dorsum manus percutaneous guide plate 2 and the brace outer plate 31 are fixed by a lock catch 6 therebetween.
In a specific embodiment, as shown in fig. 1, the lock catch 6 includes a first lock block 61, a second lock block 62, a lock bolt 63 and a lock nut 64, wherein lock holes are respectively formed in the first lock block 61 and the second lock block 62, the first lock block 61 and the second lock block 62 are respectively fixed on two plates in contact with each other, so that after the brace is placed in place, the lock holes in the first lock block 61 and the second lock block 62 are overlapped, and after the lock bolt 63 passes through the lock hole, the lock bolt 63 is fixed by the lock nut 64.
In a specific embodiment, as shown in fig. 1, the locking bolt 63 of the buckle 6 between the brace outer plate 31 and the brace inner plate 32 passes through the locking hole in the direction of the joint between the brace outer plate 31 and the brace inner plate 32; the locking bolt 63 of the lock catch 6 between the brace outer plate 31 and the hand back percutaneous guide plate 1 passes through the lock hole along the direction of the joint between the brace outer plate 31 and the hand back percutaneous guide plate 1; the locking bolt 63 of the lock catch 6 between the brace outer plate 31 and the forearm proximal outer percutaneous guide plate 2 passes through the lock hole along the direction of the joint between the brace outer plate 31 and the forearm proximal outer percutaneous guide plate 2. The direction of the locking bolt 63 is vertical to the joint between two adjacent plates, so that the fixation is firmer and more stable.
In one embodiment, as shown in fig. 1-2, the brace body 3 has a plurality of openings 33 for facilitating acupuncture or drug application. The hollow structure 33 is not only favorable for ventilation and avoiding skin inflammation, but also can be matched with acupuncture or dressing at the position of the hollow structure 33 to promote fracture healing.
In one specific embodiment, the distal radius fracture reduction brace is calibrated for healthy lateral length during 3D printing. The length of the healthy side is used as a standard in the 3D printing process, so that the length of the limbs can be guaranteed to be recovered, and the traction is avoided.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1.3D radius distal end fracture brace that resets of printing, its characterized in that: including back of the hand percutaneous baffle (1), forearm near-end outside percutaneous baffle (2) and be located brace main part (3) between the two, all be equipped with two guide pin holes on back of the hand percutaneous baffle (1) and forearm near-end outside percutaneous baffle (2), the skeleton of hand or forearm near-end is passed through a guide pin hole to the guide pin of being convenient for to wear out through another guide pin hole, brace main part (3) are used for the package to tie up and fix the fracture position.
2. The 3D printed distal radius fracture reduction brace of claim 1, wherein: the hand back percutaneous guide plate (1) and the forearm near-end external percutaneous guide plate (2) are provided with needle guide tubes (4) protruding from two sides along two needle guide holes, so that the guide needles can vertically and transversely penetrate through bones along the direction of the needle guide tubes (4).
3. The 3D printed distal radius fracture reduction brace of claim 2, wherein: the length of the needle guide tube (4) is 10-12mm, and the inner diameter of the needle guide tube (4) is 2 mm.
4. The 3D printed distal radius fracture reduction brace of claim 1, wherein: brace main part (3) include brace planking (31) with the laminating of forearm outside and brace inner panel (32) with the laminating of forearm inboard, brace planking (31) enclose jointly with brace inner panel (32) and close and form brace main part (3).
5. The 3D printed distal radius fracture reduction brace of claim 4, wherein: a plurality of positioning blocks (51) or positioning grooves (52) are arranged on the edge of the brace outer plate (31) contacting with the brace inner plate (32), and the positioning grooves (52) or the positioning blocks (51) matched with the positioning blocks (51) or the positioning grooves (52) are arranged on the edge of the brace inner plate (32) contacting with the brace outer plate (31);
the edge of the brace outer plate (31) contacting with the back of the hand percutaneous guide plate (1) is provided with a plurality of positioning blocks (51) or positioning grooves (52), and the edge of the back of the hand percutaneous guide plate (1) contacting with the brace outer plate (31) is provided with positioning grooves (52) or positioning blocks (51) matched with the positioning blocks (51) or the positioning grooves (52);
the edge of the brace outer plate (31) contacting with the forearm near-end outer percutaneous guide plate (2) is provided with a plurality of positioning blocks (51) or positioning grooves (52), and the edge of the forearm near-end outer percutaneous guide plate (2) contacting with the brace outer plate (31) is provided with positioning grooves (52) or positioning blocks (51) matched with the positioning blocks (51) or the positioning grooves (52).
6. The 3D printed distal radius fracture reduction brace of claim 4, wherein: the space between the brace outer plate (31) and the brace inner plate (32), the space between the brace outer plate (31) and the dorsum manus percutaneous guide plate (1), and the space between the brace outer plate (31) and the forearm near-end outer side percutaneous guide plate (2) are all fixed through the lock catch (6).
7. The 3D printed distal radius fracture reduction brace of claim 6, wherein: hasp (6) are including locking piece (61), locking piece two (62), locking bolt (63) and lock nut (64), all be equipped with the lockhole on locking piece one (61) and locking piece two (62), locking piece one (61) and locking piece two (62) are fixed respectively on two boards of mutual contact, make the brace place the back in place, the lockhole coincidence on locking piece one (61) and the locking piece two (62), pass locking bolt (63) behind the lockhole, it is fixed with lock nut (64).
8. The 3D printed distal radius fracture reduction brace of claim 7, wherein: a locking bolt (63) of the lock catch (6) between the brace outer plate (31) and the brace inner plate (32) penetrates through the lock hole along the direction of a joint between the brace outer plate (31) and the brace inner plate (32);
a locking bolt (63) of the lock catch (6) between the brace outer plate (31) and the hand back percutaneous guide plate (1) penetrates through the lock hole along the direction of a seam between the brace outer plate (31) and the hand back percutaneous guide plate (1);
and a locking bolt (63) of the lock catch (6) between the brace outer plate (31) and the forearm near-end outer percutaneous guide plate (2) penetrates through the lock hole along the joint direction between the brace outer plate (31) and the forearm near-end outer percutaneous guide plate (2).
9. The 3D printed distal radius fracture reduction brace of claim 1, wherein: the brace main body (3) is provided with a plurality of hollow structures (33).
10. The 3D printed distal radius fracture reduction brace of claim 1, wherein: the radius distal end bone reduction brace takes the length of a healthy side as a standard in the 3D printing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022976891.8U CN214966463U (en) | 2020-12-08 | 2020-12-08 | 3D printed radius distal end fracture reduction brace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022976891.8U CN214966463U (en) | 2020-12-08 | 2020-12-08 | 3D printed radius distal end fracture reduction brace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214966463U true CN214966463U (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022976891.8U Active CN214966463U (en) | 2020-12-08 | 2020-12-08 | 3D printed radius distal end fracture reduction brace |
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| Country | Link |
|---|---|
| CN (1) | CN214966463U (en) |
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2020
- 2020-12-08 CN CN202022976891.8U patent/CN214966463U/en active Active
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