Orthopedic osteotomy guider
Through the positioning and adjustment components of the orthopedic osteotomy guide, the problem of skewed K-S-in in osteotomy correction surgery is solved, achieving higher surgical accuracy and safety, and reducing surgical time and bleeding risk.
Patent Information
- Application Number
- CN202411336468.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2024-12-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In osteotomy correction surgery, the lack of tool-assisted positioning leads to a skew in the second K-S-K-E-Pin, which fails to form the correct triangle area or angle, increasing the time of surgery, patient pain and bleeding risk.
An orthopedic osteotomy guide is designed, including a positioning member and an adjustment member. Through the cooperation of the first guide cylinder and the second guide cylinder with the adjustment member, a dial, a screw, a rotating plate and a guide groove are used to achieve an osteotomy angle. Accurate adjustment and stable positioning.
It improves the accuracy of the surgery, reduces the operation time and bleeding risks, simplifies the doctor's operating procedures, and ensures consistency and reliability of adjustments on both sides.
Smart Images
Figure CN119138968A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of auxiliary medical devices, in particular to an orthopedic osteotomy guide. Background Art
[0002] In clinical practice, we often encounter some patients whose hands or legs are deformed and bent due to abnormal healing of fractures after injury or calcium deficiency in early childhood, such as O-shaped legs, X-shaped legs, elbow varus deformity, etc. In this case, osteotomy correction surgery is required. Through precise cutting and correction and fixation of the patient's bones, the patient's bone structure and function can be improved, and the deformed and bent limbs can be corrected to obtain a normal physiological axis.
[0003] During corrective osteotomy surgery, two Kirschner wires are usually inserted into the surgical site of the patient under fluoroscopy. The tips of the Kirschner wires are to intersect, and the intersection point is to be at the position where the Kirschner wires pass through the bone. At the same time, the two Kirschner wires form a certain angle to form a triangle-like area, and then the cutting position is marked. Then, a pendulum is used to perform osteotomy under the guidance of the marked Kirschner wires. This method places high demands on doctors. Since there is no tool to assist in positioning, the second Kirschner wire is prone to deviation during insertion, resulting in failure to form a triangle-like area with the first Kirschner wire, failure to intersect at the required position or failure to achieve the required angle. Multiple fluoroscopic examinations are required after insertion. If the doctor is not satisfied, the deviation needs to be corrected, which increases the patient's pain and operation time, and increases bleeding and surgical risks.
[0004] To this end, those skilled in the art have proposed an orthopedic osteotomy guide to solve the problems raised by the background technology. Summary of the invention
[0005] In order to solve the above technical problems, the present invention provides an orthopedic osteotomy guide to solve the problem in the prior art that due to the lack of tool-assisted positioning, the second Kirschner wire is easily deflected during the insertion process, resulting in the inability to form a triangle-like area with the first Kirschner wire, the inability to intersect at the required position or the inability to achieve the required angle. After insertion, multiple fluoroscopic examinations are required. If they are not satisfactory, the insertion deviation needs to be corrected, which increases the patient's pain and operation time, and increases bleeding and surgical risks.
[0006] An orthopedic osteotomy guide comprises a positioning component, including a first guide cylinder and a second guide cylinder;
[0007] An adjusting component, comprising a first side adjusting component slidably connected to the first guide cylinder, an angle adjusting component fixedly connected to the first side adjusting component, and a second side adjusting component fixedly connected to the angle adjusting component;
[0008] The angle adjustment assembly includes a chassis, a dial fixedly connected to the chassis, a first screw threadedly connected to the chassis, and a first rotating plate and a second rotating plate slidably connected to a rod portion of the first screw.
[0009] Preferably, the chassis is connected to the dial via a second screw, and an angle scale is provided on the upper surface of the dial.
[0010] Preferably, the first rotating plate and the second rotating plate are provided with guide grooves, and the first screw is slidingly connected to the first rotating plate and the second rotating plate respectively through the guide grooves.
[0011] Preferably, the first side adjustment assembly includes an arc plate, an arc groove opened on the arc plate, a guide plate slidably connected to the arc groove, a guide rod column fixedly connected to the guide plate, a through hole passing through the guide rod column, a third screw threadedly connected to the guide rod column, and a fourth screw threadedly connected to the lower surface of the guide plate.
[0012] Preferably, the second side adjustment assembly has the same structure as the first side adjustment assembly, and the two arc plates are respectively connected to the first rotating plate and the second rotating plate through fifth screws.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. The present invention can provide stable positioning by cooperating with the first guide cylinder and the second guide cylinder in conjunction with the adjusting component. Through the chassis, the dial, the first screw, the first rotating plate and the second rotating plate, the doctor can determine the angle between the first rotating plate and the second rotating plate by observing the scale on the dial according to the needs of the operation, and then accurately adjust the osteotomy angle, thereby improving the accuracy of the operation.
[0015] 2. The present invention provides guide grooves on the first rotating plate and the second rotating plate, so that the first rotating plate and the second rotating plate can rotate and slide with the first screw, which is convenient for doctors to perform fine adjustments.
[0016] 3. In the present invention, the second side adjustment assembly has the same structure as the first side adjustment assembly. This symmetrical design simplifies the structure of the guide and ensures the consistency and reliability of the adjustment on both sides. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall top view of the orthopedic osteotomy guide;
[0018] Figure 2 It is a bottom-up overall schematic diagram of an orthopedic osteotomy guide;
[0019] Figure 3 It is a plan view of an orthopedic osteotomy guide;
[0020] Figure 4 It is a three-dimensional cross-sectional schematic diagram of an angle adjustment component of an orthopedic osteotomy guide;
[0021] Figure 5 for Figure 1 A is an enlarged schematic diagram;
[0022] Figure 6 Schematic diagram of the use of orthopedic osteotomy guide.
[0023] In the figure:
[0024] 100, positioning component; 101, first guide cylinder; 102, second guide cylinder; 200, adjustment component; 201, first side adjustment assembly; 202, angle adjustment assembly; 203, second side adjustment assembly; 202a, chassis; 202b, dial; 202c, first screw; 202d, first rotating plate; 202e, second rotating plate; 202f, second screw; 202g, guide groove; 201a, arc plate; 201b, arc groove; 201c, guide plate; 201d, guide rod column; 201e, through hole; 201f, third screw; 201g, fourth screw; 201h, fifth screw. DETAILED DESCRIPTION
[0025] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0026] Embodiment 1
[0027] As attached Figure 1 To Attachment Figure 6 As shown, the present invention provides an orthopedic osteotomy guide, including a positioning component 100, including a first guide cylinder 101 and a second guide cylinder 102, wherein the first guide cylinder 101 and the second guide cylinder 102 are used to assist in positioning Kirschner wires, and two Kirschner wires pass through the first guide cylinder 101 and the second guide cylinder 102 respectively and are driven into the surgical site of the patient. After being driven into the surgical site of the patient, the axes of the two Kirschner wires respectively form osteotomy lines c and osteotomy lines d, and the osteotomy area e of the patient's surgery is determined by the angle a formed by the two Kirschner wires;
[0028] The adjusting component 200 includes a first side adjustment component 201 slidably connected to the first guide cylinder 101, an angle adjustment component 202 fixedly connected to the first side adjustment component 201, wherein the angle b opened by the angle adjustment component 202 is equal to the angle a formed by the two Kirschner wires, and a second side adjustment component 203 fixedly connected to the angle adjustment component 202, wherein the first side adjustment component 201 and the second side adjustment component 203 are used to confirm the positions of the two Kirschner wires;
[0029] The angle adjustment assembly 202 includes a chassis 202a, a dial 202b fixedly connected to the chassis 202a, through which the rotation angle of the first rotating plate 202d and the second rotating plate 202e can be observed, a first screw 202c threadedly connected to the chassis 202a, by forward rotating the first screw 202c, the first rotating plate 202d and the second rotating plate 202e can be locked, the first rotating plate 202d and the second rotating plate 202e are slidably connected to the rod of the first screw 202c, the first rotating plate 202d and the second rotating plate 202e can rotate and slide, thereby adjusting the size of the angle b formed by the first rotating plate 202d and the second rotating plate 202e.
[0030] Specifically, the chassis 202a is connected to the scale plate 202b via a second screw 202f, and an upper surface of the scale plate 202b is provided with an angle scale.
[0031] Furthermore, the first rotating plate 202d and the second rotating plate 202e are provided with guide grooves 202g, and the first screw 202c is slidingly connected to the first rotating plate 202d and the second rotating plate 202e respectively through the guide grooves 202g. The guide grooves 202g can assist the displacement of the first rotating plate 202d and the second rotating plate 202e.
[0032] As can be seen from the above, the patient is examined by imaging before surgery, and the data are measured on the preoperative imaging results (such as X-rays) to determine the angle a required for osteotomy;
[0033] During the operation, the first Kirschner wire is inserted into the patient's body under fluoroscopy. It can be relatively casual. It only needs to be inserted at the approximate position of the bone at the surgical site, and then penetrated to the contralateral cortical bone. The operation is assisted and confirmed by fluoroscopy. At this time, the axis of the first Kirschner wire is the osteotomy line c. At the same time, since the total length of the Kirschner wire is known, the length of the bone-entering part i can be calculated by measuring the exposed part.
[0034] Next, the first guide cylinder 101 on the first rotating plate 202d is put on the first Kirschner wire, and the tip of the first rotating plate 202d needs to be close to the bone surface. At this time, the tip of the first rotating plate 202d coincides with the insertion point of the first Kirschner wire, and then the guide plate 201c is slid to adjust the angle f between the first rotating plate 202d and the first guide cylinder 101, so that the angle f is equal to the angle a of the preoperative osteotomy plan, and then the third screw 201f is tightened to fix the first guide cylinder and the first Kirschner wire, and the fourth screw 201g is tightened to fix the guide plate 201c and the arc plate 201a together, thereby locking the angle f;
[0035] Next, the first rotating plate 202d and the second rotating plate 202e are rotated on the first screw 202c, so that the angle b between the first rotating plate 202d and the second rotating plate 202e is equal to the angle f, and the first rotating plate 202d and the second rotating plate 202e are slid while maintaining the angle b, so that the tip of the second rotating plate 202e is close to the bone surface, and then the first screw 202c is tightened to fix the angle b and the position between the first rotating plate 202d and the second rotating plate 202e, and the angle g between the second rotating plate 202e and the second guide cylinder 102 is adjusted to make the angle g equal to the angle b, and the angle g is fixed in the same way, and then the second Kirschner wire is driven into the patient's body along the second guide cylinder 102, and the axis of the second Kirschner wire is the osteotomy line d at this time;
[0036] Through the above operation, the angle g = angle b = angle f = angle a. At this time, the second Kirschner wire and the second rotating plate 202e, the first Kirschner wire and the first rotating plate 202d form a parallelogram h, and the second Kirschner wire will inevitably intersect with the first Kirschner wire at the tip of the first Kirschner wire. At this time, the angle formed by the two Kirschner wires is consistent with the angle a, and the depth of the second Kirschner wire penetrating into the bone is consistent with the length n. n is the distance from the intersection of the first rotating plate 202d and the first screw 202c to the point where the tip of the first rotating plate 202d is close to the bone surface. The length of n can be measured on the instrument. The area where the parallelogram h overlaps with the bone is the osteotomy area e. Finally, the doctor uses a pendulum to perform surgery in the osteotomy area e.
[0037] By rotating the first screw 202c in the opposite direction, the first rotating plate 202d and the second rotating plate 202e are no longer fixed. At this time, they can rotate and slide along the first screw 202c, thereby adjusting the size of the angle b, and confirm the degree through the dial 202b. Then, the first screw 202c is rotated in the forward direction to fix the first rotating plate 202d and the second rotating plate 202e, thereby fixing the size of the angle b. In order to improve efficiency, length scales are provided on the surfaces of the first Kirschner wire, the second Kirschner wire, the first rotating plate 202d and the second rotating plate 202e.
[0038] Embodiment 2:
[0039] As attached Figure 1 To Attachment Figure 6As shown, this embodiment is basically the same as the previous embodiment, except that the first side adjustment component 201 includes an arc plate 201a, an arc groove 201b provided on the arc plate 201a, wherein the center of the arc plate 201a and the arc groove 201b coincides with the tip of the first rotating plate 202d, and this design enables the guide plate 201c with the guide rod column 201d to slide in the arc groove 201b, and the Kirschner wire will pass through the center of the circle and the tip of the first rotating plate 202d after passing through the first guide cylinder 101, no matter how it slides in the arc groove 201b, the guide plate 201c slidably connected to the arc groove 201b, the guide rod column 201d fixedly connected to the guide plate 201c, and the through hole 201d that passes through the guide rod column 201d. 1e, after the first Kirschner wire is inserted into the surgical site of the patient, the through hole 201e is put on the first Kirschner wire, and the arc groove 201b is slidably matched with the guide plate 201c, so as to adjust the degree of the angle f between the first guide cylinder 101 and the first rotating plate 202d, and the third screw 201f threadedly connected to the guide rod column 201d, the third screw 201f moves downward when rotating, and passes through the first guide cylinder 101 and abuts against the first Kirschner wire, so as to fix the first Kirschner wire and the first guide cylinder 101 together, and the fourth screw 201g threadedly connected to the lower surface of the guide plate 201c, by rotating the fourth screw 201g, the guide plate 201c and the arc plate 201a are fixed together.
[0040] Specifically, the second side adjustment assembly 203 has the same structure as the first side adjustment assembly 201, an angle g is formed between the second guide cylinder 102 and the second rotating plate 202e, and the two arc plates 201a are respectively connected to the first rotating plate 202d and the second rotating plate 202e through the fifth screw 201h.
[0041] As can be seen from the above, during surgery, the first Kirschner wire is inserted into the surgical site of the patient, and then the first guide cylinder 101 is put on the first Kirschner wire. The first Kirschner wire and the first guide cylinder 101 are fixed together by rotating the third screw 201f. Since the arc plate 201a is connected to the first rotating plate 202d, the guide plate 201c is slid on the arc plate 201a through the arc groove 201b, and the angle f can be adjusted to be equal to the angle a. After the angle f is adjusted, the fourth screw is rotated to fix the first Kirschner wire and the first guide cylinder 101. The nail 201g fixes the guide plate 201c and the arc plate 201a together, and then the first rotating plate 202d and the second rotating plate 202e are slidably rotated to adjust the angle b to be equal to the angle a, and then the angle g is adjusted in the same manner as the angle f. After the second side adjustment component 203 is adjusted, the second Kirschner wire can be inserted into the patient's body along the second guide tube 102, thereby ensuring the accuracy of the range of the osteotomy area e and facilitating the doctor to perform osteotomy in the osteotomy area e.
[0042] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.
[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.
[0045] In the drawings of the embodiments disclosed in the present invention, only the structures involved in the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.
Claims
1. An orthopedic osteotomy guide, characterized in that: include, A positioning component (100) comprises a first guide cylinder (101) and a second guide cylinder (102); An adjusting component (200) comprises a first side adjusting component (201) slidably connected to the first guide cylinder (101), an angle adjusting component (202) fixedly connected to the first side adjusting component (201), and a second side adjusting component (203) fixedly connected to the angle adjusting component (202); The angle adjustment assembly (202) comprises a chassis (202a), a dial (202b) fixedly connected to the chassis (202a), a first screw (202c) threadedly connected to the chassis (202a), a first rotating plate (202d) slidably connected to the rod of the first screw (202c), and a second rotating plate (202e).
2. The orthopedic osteotomy guide as claimed in claim 1, characterized in that: The base plate (202a) is connected to the scale plate (202b) via a second screw (202f), and an angle scale is provided on the upper surface of the scale plate (202b).
3. The orthopedic osteotomy guide as claimed in claim 2, characterized in that: The first rotating plate (202d) and the second rotating plate (202e) are provided with guide grooves (202g), and the first screw (202c) is slidably connected to the first rotating plate (202d) and the second rotating plate (202e) respectively through the guide grooves (202g).
4. The orthopedic osteotomy guide as claimed in claim 3, characterized in that: The first side adjustment component (201) comprises an arc plate (201a), an arc groove (201b) provided on the arc plate (201a), a guide plate (201c) slidably connected to the arc groove (201b), a guide rod column (201d) fixedly connected to the guide plate (201c), a through hole (201e) passing through the guide rod column (201d), a third screw (201f) threadedly connected to the guide rod column (201d), and a fourth screw (201g) threadedly connected to the lower surface of the guide plate (201c).
5. The orthopedic osteotomy guide as claimed in claim 4, characterized in that: The second side adjustment assembly (203) has the same structure as the first side adjustment assembly (201), and the two arc plates (201a) are respectively connected to the first rotating plate (202d) and the second rotating plate (202e) via fifth screws (201h).