CN216148179U - Ulna coronal process locking plate - Google Patents
Ulna coronal process locking plate Download PDFInfo
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- CN216148179U CN216148179U CN202122295159.9U CN202122295159U CN216148179U CN 216148179 U CN216148179 U CN 216148179U CN 202122295159 U CN202122295159 U CN 202122295159U CN 216148179 U CN216148179 U CN 216148179U
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Abstract
The utility model discloses an ulna coronal process locking plate, which belongs to the technical field of orthopedic implants and comprises a T-shaped plate body attached to an ulna coronal process, wherein the shape of a transverse plate part of the T-shaped plate body is matched with the transverse anatomical structure of the ulna coronal process, the shape of a vertical plate part of the T-shaped plate body is matched with the longitudinal anatomical structure below the ulna coronal process, locking holes are formed in the transverse plate part and the vertical plate part, and a limited contact groove extending along the width direction of the limited contact groove is formed between adjacent locking holes in the lower surfaces of the transverse plate part and/or the vertical plate part. The ulna coronaria locking plate is small in size and good in fitting performance, soft tissue irritation is not easy to cause, and better intraoperative experience can be provided for doctors.
Description
Technical Field
The utility model relates to the technical field of orthopedic implants, in particular to an ulna coronarium locking plate.
Background
The ulnar coronal process is an important component constituting the ulnar proximal semilunar notch, and its presence blocks the possibility of anterior inferior of the distal humerus and posterior superior of the proximal ulna, which are the main structures for maintaining joint stability.
The current treatment methods for ulna coronary fracture are generally as follows:
the first is conservative treatment, namely, the fracture is fixed by a splint or plaster through manual reduction, the fixing method has small trauma and low cost, but the fracture is easy to displace again, the recovery time is long, the early functional exercise is not facilitated, and the osteoarthritis is easy to cause;
the second is the fixation of a screw or a Kirschner wire with a tension band, which can ensure that the joint surface is well involuted and is beneficial to function recovery, but easily causes the steel wire to be broken and the condition of secondary operation occurs;
the third is an incision reduction internal fixation treatment method, although the ulna coronal process fracture can be fixed and reduced, the healing of the fractured end and the normal movement of the elbow joint are ensured, but the general products on the market are not sufficient in the attaching property, sometimes secondary shaping is needed, the bone plate volume is larger than the ulna coronal process, soft tissue irritation is easily caused, the larger approach incision increases the probability of wound infection, the postoperative rehabilitation of a patient is not facilitated, and the aesthetic property of the skin after the rehabilitation is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing an ulna coronarium locking plate which has small volume and good conformability and is not easy to cause irritation of soft tissues.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model provides an ulna coronal process lockplate, is including being used for pasting the T-shaped plate body of establishing in ulna coronal process department, the shape of the horizontal plate portion of T-shaped plate body is identical with the horizontal anatomical structure of ulna coronal process, the shape of the vertical plate portion of T-shaped plate body is identical with the vertical anatomical structure in ulna coronal process below, all be equipped with the locking hole on horizontal plate portion and the vertical plate portion, the lower surface of horizontal plate portion and/or vertical plate portion is equipped with the limited contact groove that extends along its width direction between adjacent locking hole.
Further, the width of the limited contact groove is 1-4 mm.
Further, the depth of the limited contact groove is 0.1-0.5 mm.
Further, the limited contact groove is formed in the lower surface of the lateral plate portion on the side close to the radius, and the limited contact groove is formed in the lower surface of the vertical plate portion between the adjacent locking holes.
Furthermore, sharp teeth are arranged on the edges of the lower surfaces of the transverse plate part and/or the vertical plate part.
Furthermore, the sharp teeth are arranged on the lower surface edge of the middle part and the side far away from the radius on the transverse plate part, and the sharp teeth are arranged on the lower surface edge of the side far away from the radius on the tail end on the vertical plate part.
Furthermore, the transverse plate part and/or the vertical plate part are/is provided with guide pin holes.
Furthermore, the number of the locking holes on the transverse plate part is 3, and the number of the locking holes on the vertical plate part is 2-4.
Furthermore, one of 3 locking holes on the horizontal plate is located in the middle of the horizontal plate, the other two locking holes are located at two ends of the horizontal plate respectively, and the number of the locking holes on the vertical plate is 2.
Furthermore, the number of the sharp teeth on the transverse plate part and the vertical plate part is 3, two of the sharp teeth are respectively positioned on the middle part of the transverse plate part and the lower surface edge of one side far away from the radius, and the other sharp tooth is positioned on the lower surface edge of one side far away from the radius at the tail end of the vertical plate part.
The utility model has the following beneficial effects:
the ulna coronal process locking plate comprises a T-shaped plate body which is used for being attached to the ulna coronal process, and compared with products on the market, the plate body adopting the T-shaped design has small volume and can be used for minimally invasive surgery; the shape of the transverse plate part of the T-shaped plate body is matched with the transverse anatomical structure of the ulna coronal process, and the shape of the vertical plate part of the T-shaped plate body is matched with the longitudinal anatomical structure below the ulna coronal process, so that the T-shaped plate body which is anatomically designed according to the physiological structure of the human body ulna coronal process has good fitting property after being fixed with the ulna coronal process, secondary shaping is not needed, and the intraoperative time is saved; all be equipped with the locking hole on horizontal plate and the riser, the lower surface of horizontal plate and/or riser is equipped with the limited contact groove that extends along its width direction between adjacent locking hole, can disperse stress, avoids locking hole department stress concentration, makes T shaped plate body have higher intensity, has reduced the area of contact of T shaped plate body and bone piece simultaneously, has reduced the stimulation of T shaped plate body to the soft tissue. The ulna coronaria locking plate is small in size and good in fitting performance, soft tissue irritation is not easy to cause, and better intraoperative experience can be provided for doctors.
Drawings
FIG. 1 is a schematic view of the present invention showing the overall structure of the ulnar coronal locking plate in one direction;
FIG. 2 is a schematic view of the other direction of the ulnar coronal locking plate of the present invention;
FIG. 3 is a schematic view of the present invention showing the overall structure of the ulnar coronal locking plate in still another orientation;
FIG. 4 is a schematic view of the ulnar coronal locking plate of the present invention in one orientation;
FIG. 5 is a schematic view showing another direction of the ulnar coronal locking plate of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The utility model provides an ulna coronal process locking plate, as shown in figures 1-5, comprising a T-shaped plate body 1 for attaching to an ulna 10 coronal process, wherein:
the shape of the transverse plate part 11 of the T-shaped plate body 1 is matched with the transverse anatomical structure of the ulna 10 coronal process, the shape of the vertical plate part 12 of the T-shaped plate body 1 is matched with the longitudinal anatomical structure below the ulna 10 coronal process, the transverse plate part 11 and the vertical plate part 12 are both provided with locking holes 111 and 121, the lower surface of the transverse plate part 11 and/or the vertical plate part 12 is provided with limited contact grooves 112 and 122 extending along the width direction between the adjacent locking holes 111 and 121, namely the limited contact groove 112 on the transverse plate part 11 extends along the width direction of the transverse plate part 11, and the limited contact groove 122 on the vertical plate part 12 extends along the width direction of the vertical plate part 12; the limited contact slots 112, 122 are used to provide limited, rather than full, contact of the tee plate body 1 with the bone at the respective locations to distribute stresses.
When the T-shaped plate 1 is used in an operation, an elbow joint outside approach is adopted, a tool is used for holding the T-shaped plate 1 after fracture reduction and clings the T-shaped plate 1 to the coronal projection of the ulna 10, the position of the T-shaped plate 1 is adjusted, and after the position of the T-shaped plate 1 is adjusted, locking screws are implanted along the locking holes 111 and 121 on the transverse plate 11 and the vertical plate 12 of the T-shaped plate 1, so that implantation and fixation of the T-shaped plate 1 are completed.
The ulna coronal process locking plate comprises a T-shaped plate body which is used for being attached to the ulna coronal process, and compared with products on the market, the plate body adopting the T-shaped design has small volume and can be used for minimally invasive surgery; the shape of the transverse plate part of the T-shaped plate body is matched with the transverse anatomical structure of the ulna coronal process, and the shape of the vertical plate part of the T-shaped plate body is matched with the longitudinal anatomical structure below the ulna coronal process, so that the T-shaped plate body which is anatomically designed according to the physiological structure of the human body ulna coronal process has good fitting property after being fixed with the ulna coronal process, secondary shaping is not needed, and the intraoperative time is saved; all be equipped with the locking hole on horizontal plate and the riser, the lower surface of horizontal plate and/or riser is equipped with the finite contact groove that extends along its width direction between adjacent locking hole, can disperse stress, avoids locking hole department stress concentration, makes T shaped plate body have higher intensity, has reduced the area of contact of T shaped plate body and bone piece simultaneously, has reduced the stimulation of T shaped plate to the soft tissue. The ulna coronaria locking plate is small in size and good in fitting performance, soft tissue irritation is not easy to cause, and better intraoperative experience can be provided for doctors. The utility model is suitable for the treatment method of the ulna coronal process fracture incision reduction internal fixation.
As shown in fig. 2-3, the width of the limited contact grooves 112, 122 is preferably 1-4mm, such as 2mm, 3mm, etc., which can better distribute the stress and avoid stress concentration at the locking holes 111, 121. The depth of the finite contact grooves 112, 122 is preferably 0.1-0.5mm, e.g., 0.2mm, 0.3mm, etc., which is the best possible design. Considering the stress condition of the T-shaped plate body 1 and the overall strength of the T-shaped plate body 1, the present invention preferably has the limited contact grooves 112 on the lower surface of the lateral plate portion 11 on the side close to the radius, and the limited contact grooves 122 on the lower surfaces of the vertical plate portions 12 between the adjacent locking holes 121. The T-shaped plate body 1 can have a curved circular arc for transition around to avoid interference with surrounding soft tissues.
As shown in fig. 3, the lower surface edge of the horizontal plate part 11 and/or the vertical plate part 12 can be provided with sharp teeth 13, and the sharp teeth 13 can be embedded into the bone block, so that the T-shaped plate body 1 can be stably fixed at the ulnar coronal process, and the stability of the elbow joint can be ensured. For the convenience of the operation, the transverse plate portion 11 is provided with sharp teeth 13 only at the lower surface edge of the middle portion and the side far from the radius, and the vertical plate portion 12 is provided with sharp teeth 13 only at the lower surface edge of the side far from the radius. Further, the number of the sharp teeth 13 on the horizontal plate portion 11 and the vertical plate portion 12 is preferably 3, two of the sharp teeth are respectively located on the middle portion of the horizontal plate portion 11 and the lower surface edge of the side far away from the radius, and the other sharp teeth are located on the lower surface edge of the end of the vertical plate portion 12 of the side far away from the radius.
As shown in fig. 1, the horizontal plate 11 and/or the vertical plate 12 may be provided with guide holes 14, and the T-shaped plate 1 may be temporarily fixed by inserting an appropriate k-wire into the appropriate guide hole 14 according to different fracture conditions. In the embodiment shown in the figures, the number of the guide pin holes 14 is 4 and the guide pin holes are spaced from the locking holes 111 and 121.
In order to secure the fixing strength of the T-shaped panel 1, the number of the locking holes 111 in the horizontal plate portion 11 is preferably 3, and the number of the locking holes 121 in the vertical plate portion 12 is preferably 2-4. Preferably, one of the 3 locking holes 111 on the horizontal plate 11 is located in the middle of the horizontal plate 11, the other two are located at the two ends of the horizontal plate 11, and the number of the locking holes 121 on the vertical plate 12 is preferably 2 as shown in the figure, which is the best fixing effect.
In conclusion, the ulna coronal process locking plate can treat ulna coronal process fracture. The main characteristics are as follows:
(1) the T-shaped plate body is designed in an anatomical form according to the physiological structure of the ulna coronal process of the big data human body, so that the T-shaped plate body and the ulna coronal process are good in fitting performance after being fixed, and secondary shaping is not needed;
(2) the T-shaped plate body is provided with the limited contact grooves, so that stress can be dispersed, stress concentration at the locking hole is avoided, the T-shaped plate body has higher strength, meanwhile, the contact area of the T-shaped plate body and the bone block is reduced, and the stimulation to soft tissues is reduced;
(3) the T-shaped design enables the plate body to be smaller than common products on the market in size, so that the operation is more minimally invasive, and meanwhile, sharp teeth are arranged on the edge of the lower surface of the T-shaped plate body, so that the T-shaped plate body is more stably fixed in the ulna coronal process, and the stability of the elbow joint is ensured.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (10)
1. The utility model provides an ulna coronal process lockplate, characterized by, including being used for pasting the T-shaped plate body of establishing in ulna coronal process department, the shape of the horizontal plate portion of T-shaped plate body is identical with the horizontal anatomical structure of ulna coronal process, the shape of the vertical plate portion of T-shaped plate body is identical with the vertical anatomical structure of ulna coronal process below, all be equipped with the locking hole on horizontal plate portion and the vertical plate portion, the lower surface of horizontal plate portion and/or vertical plate portion is equipped with the limited contact groove that extends along its width direction between adjacent locking hole.
2. The ulnar coronal locking plate as described in claim 1, wherein said limited contact slot has a width of 1-4 mm.
3. The ulnar coronal locking plate as described in claim 1, wherein said limited contact slot has a depth of 0.1-0.5 mm.
4. The ulnar coronal locking plate as described in claim 1, wherein said limited contact slot is provided in a lower surface of said transverse plate portion on only one side thereof adjacent to the radius, and said limited contact slot is provided in a lower surface of said vertical plate portion between adjacent locking holes.
5. The ulnar coronal locking plate of claim 1, wherein the lower surface edges of the transverse plate portion and/or the vertical plate portion are provided with sharp teeth.
6. The ulnar coronal locking plate as described in claim 5, wherein said transverse plate portion is provided with said pointed teeth only at a lower surface edge of a middle portion and a side distal from a radius, and said vertical plate portion is provided with said pointed teeth only at a lower surface edge of a distal side distal from the radius.
7. The ulnar coronal locking plate of claim 1, wherein the transverse plate portion and/or the vertical plate portion are provided with guide pin holes.
8. The ulnar coronal locking plate of any one of claims 1-7, wherein the number of locking holes in the transverse plate portion is 3 and the number of locking holes in the riser portion is 2-4.
9. The ulnar coronal locking plate of claim 8, wherein one of said 3 locking holes in said transverse plate portion is located in the middle of said transverse plate portion and the other two are located at the two ends of said transverse plate portion, respectively, and the number of said locking holes in said vertical plate portion is 2.
10. The ulnar coronal locking plate as described in claim 5 or 6, wherein said transverse plate portion and said vertical plate portion have 3 sharp teeth, two of which are located at the middle of said transverse plate portion and the lower surface edge of the side far from the radius, and the other is located at the lower surface edge of the side far from the radius at the end of said vertical plate portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122295159.9U CN216148179U (en) | 2021-09-18 | 2021-09-18 | Ulna coronal process locking plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122295159.9U CN216148179U (en) | 2021-09-18 | 2021-09-18 | Ulna coronal process locking plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216148179U true CN216148179U (en) | 2022-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122295159.9U Active CN216148179U (en) | 2021-09-18 | 2021-09-18 | Ulna coronal process locking plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216148179U (en) |
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2021
- 2021-09-18 CN CN202122295159.9U patent/CN216148179U/en active Active
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