CN117838337A - Elbow joint steering movement device - Google Patents
Elbow joint steering movement device Download PDFInfo
- Publication number
- CN117838337A CN117838337A CN202410132825.2A CN202410132825A CN117838337A CN 117838337 A CN117838337 A CN 117838337A CN 202410132825 A CN202410132825 A CN 202410132825A CN 117838337 A CN117838337 A CN 117838337A
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- CN
- China
- Prior art keywords
- connecting piece
- worm
- elbow joint
- fixedly connected
- turbine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000002310 elbow joint Anatomy 0.000 title claims abstract description 22
- 238000004873 anchoring Methods 0.000 claims abstract description 18
- 210000000988 bone and bone Anatomy 0.000 description 6
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 208000006111 contracture Diseases 0.000 description 4
- 238000013519 translation Methods 0.000 description 3
- 210000001364 upper extremity Anatomy 0.000 description 3
- 206010062575 Muscle contracture Diseases 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 201000002481 Myositis Diseases 0.000 description 1
- 206010003246 arthritis Diseases 0.000 description 1
- 238000011882 arthroplasty Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000011164 ossification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 210000000623 ulna Anatomy 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The invention discloses an elbow joint steering exercise device, which comprises: the near-end rod anchoring component comprises an annular connecting piece and a transverse connecting piece integrally connected with the annular connecting piece, a central shaft is fixedly connected in the middle of the annular connecting piece, a turbine is sleeved on the central shaft, a hinge piece is fixedly connected to the turbine, a far-end rod anchoring component is connected to the hinge piece in an adjustable mode, a second connecting rod is fixedly connected to one end, far away from the turbine, of the far-end rod anchoring component, and a first connecting rod is fixedly connected to one end, far away from the annular connecting piece, of the transverse connecting piece. According to the invention, the exercise machine is light in weight, the cost is greatly reduced, the hinging is effectively realized, and the radiolucence of the central element which is aligned with the joint when the exercise machine is in use is ensured.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an elbow joint steering exercise device.
Background
Because of the treatment of elbow joint trauma or other causes (inflammation, burns, arthritis), flexion contractures of the joint are hypothesized to be of particular clinical importance in terms of the frequency and extent of damage. Indeed, even a slight contracture (about 30 ° -40 °) significantly reduces the functionality of the upper limb. In many cases, the recovery of flexibility by restitution or distraction arthroplasty after contracture may be limited or blocked by pain and/or expansion if the associated muscle peptide shortens on both sides of the joint.
Some techniques like early active exercise, general therapy, continuous passive exercise (CPM) may be used to face this problem, but they cannot be ensured in any defined way that this problem will be solved. Early positive exercise may reduce the weight of contractures, but this requires the patient to stay with strenuous. In general treatment, passive stretching performed with the help of therapists may cause ectopic bone formation and osseous myositis. Finally, CPM devices allow rapid restoration of mobility, but they do not reach the end of dynamic motion, which is where maximum restoration is required.
Currently, only some orthopedic devices meet these requirements with limited effectiveness. Indeed, the external holders of the dumpling type on the market are not designed directly for strong rehabilitation of the joints and therefore they have a series of drawbacks that make them unsuitable for this purpose. The first disadvantage arises from the difficulty in centering and repositioning the external fixator relative to the elbow joint. This centering is hampered by the radio-invisible anchor member, which reduces the visibility of the bone joint, and difficulty in identifying the articulation axis of the device. Another disadvantage stems from the fact that external fixtures on the market do not allow for a completely dynamic movement of the elbow joint with which they are associated. Another disadvantage is the excessive size and weight based on the external elbow joint fixtures known today.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide the elbow joint steering exercise machine, which has light weight, greatly reduces cost, effectively realizes hinging and ensures the ray permeability of the central element which is aligned with the joint when in use. To achieve the above objects and other advantages and in accordance with the purpose of the invention, there is provided an elbow joint steering exercise including:
the near-end rod anchoring component comprises an annular connecting piece and a transverse connecting piece integrally connected with the annular connecting piece, a central shaft is fixedly connected in the middle of the annular connecting piece, a turbine is sleeved on the central shaft, a hinge piece is fixedly connected to the turbine, a far-end rod anchoring component is connected to the hinge piece in an adjustable mode, a second connecting rod is fixedly connected to one end, far away from the turbine, of the far-end rod anchoring component, and a first connecting rod is fixedly connected to one end, far away from the annular connecting piece, of the transverse connecting piece;
the annular connecting piece is inserted with a worm, and the worm and the transverse connecting piece are transversely arranged.
Preferably, the turbine is of annular shape, and a circle of gears are arranged on the outer surface of the turbine, and the gears are meshed with gears on the worm.
Preferably, the surface of the annular connecting piece, which is positioned at the worm, is inserted with a worm limiter, and the worm limiter is used for adjusting the position of the worm.
Preferably, the distal rod anchoring part comprises an adjusting connecting section and a fixed connecting section integrally connected with the connecting section, the adjusting connecting section comprises two fixing sheets which are arranged in parallel, an extension bolt is connected to the middle part of the fixed connecting section in a threaded manner, and the extension bolt extends between the two fixing sheets which are arranged in parallel.
Preferably, a sliding groove is respectively formed in an opposite side face of the hinge part, the sliding groove is matched with the fixing plates, an adjusting hole is formed in the middle of the hinge part, an adjusting bolt is arranged in the adjusting hole, the adjusting bolt sequentially penetrates through the two fixing plates, and the position of the extending bolt extending from the fixed connection section to the adjusting bolt is in contact with the adjusting bolt.
Compared with the prior art, the invention has the beneficial effects that: the elbow joint is centered and repositioned by the central shaft, hinge, worm gear, and the central shaft and optically transparent centering window setting is centered without interference from the radiopaque anchor members that reduce the visibility of the bone joint and the hinge shaft of the device being difficult to identify. By means of the worm screw removal, the hinge member is free to rotate about the central axis. The exercise apparatus of the present application is small in size and light in weight.
Drawings
FIG. 1 is a schematic three-dimensional view of an elbow joint steering mover according to the present invention;
fig. 2 is a schematic view of a three-dimensional exploded structure of an elbow joint steering mover according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, an elbow joint steering exercise device, comprising: the proximal rod anchoring component 3, the proximal rod anchoring component 3 comprises an annular connecting piece and a transverse connecting piece integrally connected with the annular connecting piece, a central shaft is fixedly connected in the middle of the annular connecting piece, the center of the central shaft is in a hollow state, a light-transmitting centering window 11 is arranged on the end face of the central shaft, elbow joint center guidance can be provided for installation and treatment through the light-transmitting centering window 11, a turbine 14 is sleeved on the central shaft, a hinge piece 5 is fixedly connected to the turbine 14, the hinge piece 5 is adjustably connected with a distal rod anchoring component 6, one end of the distal rod anchoring component 6, far away from the turbine 14, is fixedly connected with a second connecting rod 10 through a first fixing bolt 9, the second connecting rod 10 is fixedly connected with a fixing needle and ulna through a rod clamp, and one end of the transverse connecting piece, far away from the annular connecting piece, is fixedly connected with a first connecting rod 1 through a second fixing bolt 2; the elbow joint is connected and fixed through the proximal rod anchoring part 3, the connecting rod 1, the connecting rod 10 and the rod clamp, so that the motion and treatment effects of the elbow joint can be fixed and controlled.
The annular connecting piece is inserted with a worm 12, the worm 12 and the transverse connecting piece are transversely arranged, the surface of the annular connecting piece, which is positioned at the worm 12, is inserted with a worm limiter 13, and the worm limiter 13 is used for adjusting the position of the worm 12; the worm 12 can be rotated to control the worm wheel 14 to rotate around the central shaft, when the worm limiter 13 is removed, the worm 12 can be taken out, and the worm wheel 14 can drive the hinge 5 to rotate around the central shaft freely.
Further, the turbine 14 is formed in an annular shape, and a gear is provided on the outer surface of the turbine 14, and the gear is meshed with a gear on the worm 12.
Further, the distal rod anchoring member 6 includes an adjusting connection section and a fixing connection section integrally connected with the connection section, the adjusting connection section includes two fixing sheets arranged in parallel with each other, an extension bolt 8 is screwed on the middle part of the fixing connection section, and the extension bolt 8 extends between the two fixing sheets arranged in parallel with each other. The hinge 5 has a sliding groove on the opposite side respectively, the sliding groove matches with the fixing piece, and the middle part of the hinge 5 has an adjusting hole, the adjusting hole is provided with an adjusting bolt 4, the adjusting bolt 4 sequentially penetrates through the two fixing pieces, and the position of the extending bolt 8 extending from the fixed connection section to the adjusting bolt 4 is in contact with the adjusting bolt 4. When the adjusting bolt 4 is loosened, the position of the distal rod anchor member 6 on the sliding groove can be adjusted at this time by turning the extension bolt 8. The extension bolt 8 may be fixedly connected to the distal rod anchor member 6 by a pin 7.
In particular, the proximal rod anchor member 3 is integrally associated with a proximal bone of an upper limb of a patient, the distal rod anchor member 6 is integrally associated with a distal bone of an upper limb of a patient, the proximal rod anchor member 3 and the distal rod anchor member 6 are hinged together by a hinge comprising a central axis and a light-transmissive centering window 11 extending through the hinge axis, the light-transmissive centering window 11 for framing an elbow joint when positioning an external orthopaedic fixator, the light-transmissive centering window 11 may have a cylindrical geometry and define a hinge pin between a proximal coupling portion and a distal coupling portion. The presence of the light-transmitting centering window 11 provides a significant help in the step of centering the joint axis, the light-transmitting centering window 11 may advantageously comprise a central tube oriented along the central axis to allow possible insertion of a reference line of known type, such as, for example, a k-wire.
The proximal rod anchor 3 comprises at least one proximal rod connected to the articulation and secured to the proximal bone by a proximal endosteal needle supported by at least one staple clip. The distal endosteal needle may be supported by at least one distal staple clip associated with the distal shaft, which may advantageously allow three degrees of freedom between the shaft and the needle, i.e. typically due to the ability of the shaft to slide axially in its seat, the ability of the needle to slide axially in its seat and the possibility of angular adjustment between the locking shaft and the engagement element of the needle, the distal endosteal needle may be directly supported by the distal shaft and held in place by means of a locking member fastened to the distal shaft by means of a fixation member, such as a fixation screw. The distal shaft and the locking element may have opposing hollows that work together to define a seat for the distal endosteal needle. Has the advantage of obviously reducing the structural cost. The distal endosseous needle is supported by at least one insert rotatably overlapping a base integral with the distal shaft, a locking member for holding said distal endosseous needle in place being arranged above said insert, said locking member being lockable on the distal base by means of a fixation member, in particular a fixation screw, which may also advantageously allow blocking of relative movements between said base and said insert.
The articulation may advantageously comprise an articulation locking member arranged to block relative rotation between the proximal and distal coupling portions. In particular, these components may take the form of joint locking screws. The articulation may further comprise an articulating component arranged to permit translation of the distal anchor component relative to the proximal anchor component. The translation takes place along a distraction axis inclined with respect to the longitudinal axis of the distal bone by a distraction angle comprised between 60 ° and 75", preferably 66". The distal coupling portion may include an engagement element hinged to the proximal coupling portion and a distal connector integral with the distal anchor member, the distal connector being slidably movable relative to the engagement element. In this case, the joint distraction component may be arranged to cause translation of the distal connector relative to the engagement element. The distal connector may comprise a sliding arm slidably inserted into a sliding seat of the engagement element, and then said articulated traction means in the form of a screw for traction control, comprising a head rotatably associated with the sliding seat and a shank engaged in the sliding arm.
The number of devices and the scale of processing described herein are intended to simplify the description of the invention, and applications, modifications and variations of the invention will be apparent to those skilled in the art.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (5)
1. An elbow joint steering exercise device, comprising:
the near-end rod anchoring component (3), the near-end rod anchoring component (3) comprises an annular connecting piece and a transverse connecting piece integrally connected with the annular connecting piece, a central shaft is fixedly connected in the middle of the annular connecting piece, a turbine (14) is sleeved on the central shaft, a hinge (5) is fixedly connected to the turbine (14), a far-end rod anchoring component (6) is adjustably connected to the hinge (5), a second connecting rod (10) is fixedly connected to one end, far from the turbine (14), of the far-end rod anchoring component (6), and a first connecting rod (1) is fixedly connected to one end, far from the annular connecting piece, of the transverse connecting piece;
the annular connecting piece is inserted with a worm (12), and the worm (12) and the transverse connecting piece are transversely arranged.
2. An elbow joint steering exercise machine according to claim 1, wherein the worm gear (14) is of annular configuration, the outer surface of the worm gear (14) being provided with a gear wheel which engages with a gear wheel on the worm (12).
3. An elbow joint steering exercise machine according to claim 2, characterized in that the surface of the annular connecting piece at the worm (12) is plugged with a worm limiter (13), which worm limiter (13) is used for adjusting the position of the worm (12).
4. An elbow joint steering exerciser according to claim 1, wherein the distal rod anchoring member (6) comprises an adjustment connecting section and a fixing connecting section integrally connected with the connecting section, the adjustment connecting section comprises two fixing pieces arranged in parallel with each other, an extension bolt (8) is screwed to the middle part of the fixing connecting section, and the extension bolt (8) extends between the two fixing pieces arranged in parallel with each other.
5. An elbow joint steering exercise machine according to claim 1, wherein a sliding groove is respectively provided on an opposite side face of the hinge member (5), the sliding groove is matched with the fixing plates, an adjusting hole is provided in the middle part of the hinge member (5), an adjusting bolt (4) is provided in the adjusting hole, the adjusting bolt (4) penetrates through the two fixing plates in sequence, and the position of the extending bolt (8) extending from the fixed connection section to the adjusting bolt (4) is in contact with the adjusting bolt (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410132825.2A CN117838337A (en) | 2024-01-31 | 2024-01-31 | Elbow joint steering movement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410132825.2A CN117838337A (en) | 2024-01-31 | 2024-01-31 | Elbow joint steering movement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117838337A true CN117838337A (en) | 2024-04-09 |
Family
ID=90546283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410132825.2A Pending CN117838337A (en) | 2024-01-31 | 2024-01-31 | Elbow joint steering movement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117838337A (en) |
-
2024
- 2024-01-31 CN CN202410132825.2A patent/CN117838337A/en active Pending
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