CN211674432U - Perspective-free closed osteotomy guiding device - Google Patents
Perspective-free closed osteotomy guiding device Download PDFInfo
- Publication number
- CN211674432U CN211674432U CN202020236739.3U CN202020236739U CN211674432U CN 211674432 U CN211674432 U CN 211674432U CN 202020236739 U CN202020236739 U CN 202020236739U CN 211674432 U CN211674432 U CN 211674432U
- Authority
- CN
- China
- Prior art keywords
- guide
- osteotomy
- holes
- indicator
- degrees
- 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.)
- Active
Links
Images
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model provides a closed bone guider that cuts of exempting from perspective, include: a first osteotomy guide, a second osteotomy guide; after the first osteotomy guide part is matched and connected with the second osteotomy guide part, a plane where the center lines of the paired first guide through holes are positioned and a plane where the center lines of the paired second guide through holes are positioned form a set angle; the distance between the midpoint of the inner tangent line of the paired first guide through holes at the distal end of the first guide member and the midpoint of the inner tangent line of the paired second guide through holes at the distal end of the second guide member is a set distance; the bone cutting instrument further comprises a first indicator and a second indicator, wherein the first indicator and the second indicator are respectively provided with a first indicator handle and a second indicator handle, and the intersection point of the first indicator handle and the second indicator handle is the osteotomy intersection point. The utility model discloses exempt from perspective closed bone guider that cuts can once only realize accurate high quality and cut the bone, shorten operation time, alleviate patient's misery to can be according to different patients' the condition, used repeatedly after the adjustment, the adjustment is quick and with low costs.
Description
Technical Field
The utility model relates to a cut bone and use medical instrument technical field, concretely relates to exempt from perspective closed bone guider that cuts.
Background
In clinical bone surgery, correcting skeletal deformities (e.g., angulation of a bend) is one of the common procedures, and osteotomy is a necessary surgical step. The osteotomy generally comprises an open osteotomy and a closed osteotomy, and the closed osteotomy has the advantage that the osteotomy surfaces are in full direct contact, so that the osteotomy is facilitated to be healed. For proximal tibial osteotomy, open osteotomy is mostly adopted, and postoperative healing is better; for the distal femur osteotomy, if the open osteotomy is adopted, the non-healing rate is very high, so the closed osteotomy is mostly adopted, and the postoperative healing effect can be obviously improved.
Chinese patent document CN110251193A discloses an individualized closed osteotomy guide plate and a manufacturing method thereof, and specifically discloses the following contents: the individualized closed bone cutting guide plate comprises a guide plate body, wherein at least two guide through grooves and at least two positioning through holes are formed in the guide plate body; the guide through grooves are arranged on the guide plate body in parallel and used for guiding the insertion position and the cutting direction of the osteotomy saw blade; the positioning through hole is used for guiding the insertion position and the insertion direction of the Kirschner wire. The guide plate body is provided with a guide through groove and/or a positioning through hole, the scanning result is extracted, three-dimensional software is used for modeling again, the guide plate is individually designed according to the condition of a patient, and the guide plate is manufactured by adopting a 3D printing technology; the design aim is that the osteotomy saw blade is matched with the osteotomy section shape and size of the osteotomy part of the patient through the guide through groove. The osteotomy guide plate disclosed in the patent literature needs to extract a scanning result, then uses three-dimensional software for modeling, and finally adopts a 3D printing technology for printing, so that the osteotomy guide plate is long in time, low in efficiency, capable of being used by only one patient at a time, and high in cost.
Therefore, how to design a medical instrument for assisting osteotomy, which has good universality and low cost and can intuitively predict the osteotomy intersection point, is a technical problem which is not solved in the prior art.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the instrument that is used for cutting the bone direction among the prior art and only supplying a patient single to use, and the commonality is poor, and makes cycle length, the technical defect of inefficiency at every turn to a closed bone cutting guider who cuts the bone crosspoint with low costs, the commonality is good and can the visual observation.
Therefore, the utility model provides a closed osteotomy guider of exempting from perspective, include:
the first osteotomy guiding element is provided with a first guiding element proximal end and a first guiding element distal end which are oppositely arranged, and the first osteotomy guiding element is provided with at least one pair of first guiding through holes which penetrate through the first guiding element proximal end and the first guiding element distal end; the center lines of the paired first guide through holes are arranged in parallel; the first truncated guiding piece comprises a first splicing piece and a second splicing piece, and the first guiding through hole is formed by detachably splicing the first splicing piece and the second splicing piece;
the second osteotomy guide is matched and connected with the first osteotomy guide and is provided with a second guide proximal end and a second guide distal end which are arranged oppositely, and the second osteotomy guide is provided with at least one pair of second guide through holes which penetrate through the second guide proximal end and the second guide distal end; the center lines of the paired second guide through holes are arranged in parallel;
after the first osteotomy guide piece is matched and connected with the second osteotomy guide piece, a plane where the center lines of the paired first guide through holes are positioned and a plane where the center lines of the paired second guide through holes are positioned form a set angle; the distance between the midpoint of the inner tangent line of the paired first guide through holes at the distal end of the first guide piece and the midpoint of the inner tangent line of the paired second guide through holes at the distal end of the second guide piece is a set distance;
the first indicating piece is detachably arranged in the first guide through hole and is provided with a first indicating handle, and the extending direction of the first indicating handle is parallel to the axial direction of the first guide through hole;
the second indicating piece is detachably arranged in the second guide through hole and is provided with a second indicating handle, and the extending direction of the second indicating handle is parallel to the axial direction of the second guide through hole;
the intersection point of the first indicating handle and the second indicating handle is an osteotomy intersection point.
As a preferable aspect, the first indicator includes:
a first indicator body;
the first mounting shafts are arranged on the side surface of one end of the first indicating piece main body and are used for being inserted into the first guide through holes correspondingly;
the first indicating handle is arranged on the side surface of the other end of the first indicating piece main body, and the extending direction of the first indicating handle is the same as that of the first mounting shaft;
and/or the presence of a gas in the gas,
the second indicator includes:
a second indicator body;
at least two second mounting shafts are arranged on the side surface of one end of the second indicator main body and are used for being correspondingly inserted into the at least two second guide through holes;
and a second indicator handle disposed on a side surface of the other end of the second indicator body, and extending in the same direction as the second mounting shaft.
As a preferable mode, the first indicator body includes:
the side wall of the first base is provided with the first mounting shaft, and the top end of the first base is provided with a first guide mounting hole;
one end of the first vertical rod is inserted into the first guide mounting hole in a pluggable manner, and the side wall of the other end of the first vertical rod is provided with the first indicating handle;
and/or the presence of a gas in the gas,
the second indicator body includes:
the side wall of the second base is provided with the second mounting shaft, and the top end of the second base is provided with a second guide mounting hole;
one end of the second vertical rod is inserted into the second guide mounting hole in a pluggable manner, and the second indication handle is arranged on the side wall of the other end of the second vertical rod.
Preferably, after the first osteotomy guide member is matched and connected with the second osteotomy guide member, the plane of the paired second guide through hole center lines forms an included angle of 1-15 degrees with the plane of the paired first guide through hole center lines.
Preferably, the first osteotomy guide has one, and the second osteotomy guide has a plurality;
the planes of the paired second guide through hole center lines arranged on different second osteotomy guide members and the planes of the paired first guide through hole center lines respectively form included angles of 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, 10 degrees, 11 degrees, 12 degrees, 13 degrees, 14 degrees or 15 degrees.
Preferably, the number of the first guide through holes on the first osteotomy guide is 2-7;
the second guiding through holes are arranged in 4 rows on the second osteotomy guiding part, 4-6 guiding through holes are arranged in each row, and the central lines of the 4 rows of second guiding through holes are arranged in parallel.
Preferably, after the first osteotomy guide is coupled to the second osteotomy guide, a distance between an internal tangent of the pair of first guide through holes at the distal end of the first guide and an internal tangent of the pair of second guide through holes closest to the first osteotomy guide at the distal end of the second guide is 3 mm.
Preferably, the distance between circle centers of two adjacent pairs of second guide through holes at the far end of the second guide piece is 4 mm.
Preferably, the bone cutting device further comprises an adjusting block which is arranged between the first bone cutting guide part and the second bone cutting guide part in an inserting and pulling mode and used for increasing the distance between the middle point of the inner tangent line of the pair of first guide through holes at the far end of the first guide part and the middle point of the inner tangent line of the pair of second guide through holes at the far end of the second guide part.
As a preferable scheme, the adjusting block comprises at least one of a first adjusting block, a second adjusting block and a third adjusting block;
wherein:
after the first adjusting block is inserted between the first osteotomy guide part and the second osteotomy guide part, the distance between the midpoint of the internal tangent line of the first guide through hole in the pair at the distal end of the first guide part and the midpoint of the internal tangent line of the second guide through hole in the pair at the distal end of the second guide part can be increased by 1 mm;
after the second adjusting block is inserted between the first osteotomy guide part and the second osteotomy guide part, the distance between the midpoint of the internal tangent line of the pair of first guide through holes at the distal end of the first guide part and the midpoint of the internal tangent line of the pair of second guide through holes at the distal end of the second guide part can be increased by 2 mm;
after the 3 rd adjusting block is inserted between the first osteotomy guide part and the second osteotomy guide part, the distance between the midpoint of the inner tangent line of the paired first guide through holes at the far end of the first guide part and the midpoint of the inner tangent line of the paired second guide through holes at the far end of the second guide part can be increased by 3 mm.
As a preferable scheme, the first osteotomy guiding element is of a U-shaped structure, the first guiding through hole is arranged on the bottom surface of the U-shaped structure, and guiding grooves are arranged on two inner side surfaces of the U-shaped structure;
the second cuts bone guide for T type structure, the vertical section of T type structure inserts inside the U type structure, be equipped with on the both sides wall of vertical section and insert the inside direction arch of guide way.
As a preferable scheme, the end parts of the two side walls of the U-shaped structure are respectively provided with at least one threaded shaft, the horizontal section of the T-shaped structure is provided with an installation through hole opposite to the threaded shaft, and the T-shaped structure further comprises a fastening nut which can be installed on the part of the threaded shaft penetrating out of the installation through hole.
The technical scheme provided by the utility model, following advantage has:
1. the utility model discloses perspective-free closed osteotomy guiding device, including first osteotomy guiding element, second osteotomy guiding element, first indicator and second indicator, when cutting the bone, at first lean on or fix first osteotomy guiding element on waiting to cut the corresponding position of bone, install first indicator and enter into a pair of first guiding through-hole inside, the instruction direction of first instruction handle is parallel with the axial of first guiding through-hole this moment; then the second osteotomy guide piece is abutted against the corresponding position of the bone to be osteotomy, the second indicating piece is installed and enters the second guide through hole, and the indicating direction of the second indicating handle is parallel to the axial direction of the second guide through hole; determining that the first indication handle and the second indication handle are just crossed at the target position by adjusting the position of the second osteotomy guide, and then fixing the second osteotomy guide; detaching the first indicator and the second indicator, penetrating the first indicator and the second indicator through a pair of first guide through holes by using two kirschner wires (from the proximal end of the first guide to the distal end of the first guide), and nailing the first indicator and the second indicator on the bone to be cut; using another two kirschner wires to penetrate out of the pair of second guide through holes (from the proximal end of the second guide part to the distal end of the second guide part), and nailing the kirschner wires on the bone to be cut; first osteotomy guide and second osteotomy guide all can take off (will separate first splice and second splice earlier), can adopt the osteotome to press close to the kirschner wire and cut the bone this moment to guarantee that the angle of cutting the bone is accurate, and two from upper and lower two pairs of kirschner wire positions begin respectively to cut two osteotomy lines of bone, can put through in predetermined crossing point position, thereby once only accomplish high-quality osteotomy. The utility model discloses exempt from perspective closed bone guider that cuts can once only realize accurate high quality and cut the bone, shorten operation time, alleviate patient's misery to can be according to different patients' the condition, used repeatedly after the adjustment, the adjustment is quick and with low costs.
2. The perspective-free closed osteotomy guiding device comprises a first indicating piece, a first installation shaft and a first indicating handle, wherein the first indicating piece is fixedly installed by inserting the first installation shaft into a first guiding through hole; the first indicating handle is arranged at a position, so that after the first indicating piece is installed, the extending direction of the first indicating piece is the same as the extending direction of the first guide through hole, and the extending direction of the first guide through hole can be indicated; in the same arrangement mode, the second indicating handle can indicate the extending direction of the second guiding through hole, and the position of the intersection point of the first indicating handle and the second indicating handle is reasonably adjusted to the target position by selecting the position and the angle of the second guiding through hole, so that high-quality osteotomy can be completed at one time. Preferably, first indicator main part includes first base and first montant, and the top of first base is equipped with first direction mounting hole, and inside the one end of first montant installed entering into first direction mounting hole with pluggable, this kind of structural design, the extending direction that can guarantee first instruction handle is correct, and can adjust the upper and lower height of first instruction handle, avoids being located same height with second instruction handle.
3. The perspective-free closed osteotomy guiding device has the advantages that after the first osteotomy guiding part is matched and connected with the second osteotomy guiding part, the included angle between the plane where the paired second guiding through hole center lines are positioned and the plane where the paired first guiding through hole center lines are positioned is 1-15 degrees; this range of angles substantially meets the osteotomy needs of most patients.
4. The utility model discloses exempt from perspective closed osteotomy guider, the second cuts the bone guide and has a plurality ofly, when needs intercepting specific angle, choose for use the second that has specific angle to cut bone guide and first cut bone guide cooperation can.
5. The utility model discloses exempt from perspective closed bone guider that cuts, second guiding hole cut the bone guide and be equipped with 4 rows, every row 4-6, 4 rows on the second the central line parallel arrangement of second guiding hole, cut bone guide cooperation when first bone guide and second and be connected the back, but the suitable second guiding hole of optional aligns with the selected position of advancing the bone for the nail goes into the second and to ke shi needle.
6. The perspective-free closed osteotomy guiding device has the advantages that the distance between the internal tangent line of the pair of first guiding through holes, which is positioned at the far end of the first guiding part, and the internal tangent line of the pair of second guiding through holes, which is closest to the first osteotomy guiding part, which is positioned at the far end of the second guiding part is 3 mm; and the distance between circle center connecting lines of the two adjacent pairs of second guide through holes at the far ends of the second guide pieces is 4 mm. Like this the utility model discloses a closed bone guider that cuts all has a corresponding a pair of second direction through-hole to the position apart from first a pair of ke shi needle 3mm, 7mm, 11mm, 15mm to align.
7. The utility model discloses exempt from perspective closed bone guider that cuts still includes the regulating block, but install between first bone guider and the second bone guider that cuts with inserting for increase the mid point that is located the interior tangent line of first guider distal end of mated first direction through-hole, with the distance between the mid point that is located the interior tangent line of second guider distal end of mated second direction through-hole. Preferably, the adjusting block comprises at least one of a first adjusting block, a second adjusting block and a third adjusting block, so that a pair of second guide through holes can be aligned with the second guide through holes from any one distance of 3-18mm, thereby facilitating the nailing of the second guide through holes.
8. The perspective-free closed osteotomy guiding device has the advantages that the U-shaped first osteotomy guiding part is connected with the T-shaped second osteotomy guiding part in a sliding fit manner through the guiding groove and the guiding bulge, so that the movement is more accurate; further, including threaded shaft, installation through-hole and fastening nut, after first osteotomy guide, second osteotomy guide and the second of adjusting the agent piece combination are good, accessible threaded shaft, installation through-hole and fastening nut are with the three tightly fixed together, conveniently carry out subsequent operation of nailing into ke shi needle.
Drawings
In order to more clearly illustrate the technical solutions in the prior art or the embodiments of the present invention, the drawings used in the description of the prior art or the embodiments are briefly introduced below.
FIG. 1 is a schematic view of a closed osteotomy.
Fig. 2 is a schematic structural diagram of the perspective-free closed osteotomy guiding device of the present invention.
Fig. 3 is a schematic diagram of the structure of fig. 2 with the addition of a regulating block.
Reference numerals: 1. a first osteotomy guide; 11. a first guide proximal end; 12. a first guide distal end; 13. a guide groove; 14. a threaded shaft; 15. a first splice; 16. a second splice; 2. a second osteotomy guide; 21. a second guide proximal end; 22. a second guide distal end; 23. a guide projection; 24. a vertical section; 25. a horizontal segment; 26. mounting a through hole; 31. a first regulating block; 32. a second regulating block; 33. a third regulating block; 41. a first guide through hole; 42. a second guide through hole; 5. fastening a nut; 6. bones to be cut; 7. the bone is to be removed; 81. a first osteotomy location; 82. a second osteotomy location; 83. an intersection point; 91. a first indicator; 911. a first indication handle; 912. a first base; 913. a first mounting shaft; 914. a first vertical bar; 915. a first guide mounting hole; 92. a second indicator; 921. a second indication handle; 922. a second base; 923. a second mounting seat; 924. a second vertical bar; 925. and a second guide mounting hole.
Detailed Description
In order to more clearly describe the present invention, it is necessary to briefly describe the osteotomy principle of the closed osteotomy. Fig. 1 illustrates the principle of closed osteotomy, specifically, an osteotomy procedure in which a bone 6 to be osteotomy is cut from a first osteotomy position 81 and a second osteotomy position 82 by using an osteotome, and finally to a junction 83 position, the bone 7 to be removed is cut, and then the upper and lower sections are snapped into contact, thereby correcting the curvature of the bone. In order to accurately correct the bone curvature after osteotomy, an included angle between the first osteotomy position 81 and the second osteotomy position 82 needs to be accurately determined, and the angle needs to be ensured not to be deviated during osteotomy; for rapid healing after osteotomy, the junction 83 needs to be cut right to the edge of the bone and not to break the periosteum. The difficulty that exists among the prior art is that first osteotomy angle is not accurate enough, and the second is the position of meeting point does not control well, and the utility model discloses a purpose just lies in the accurate control and cuts the osteotomy angle, and guarantees that the position of meeting point 83 just in time cuts to the bone limit, and does not harm the periosteum.
The technical solution of the present invention will be described in detail with reference to the accompanying drawings.
The present embodiment provides a perspective-free closed osteotomy guiding device, as shown in fig. 2, comprising: the bone cutting guide comprises a first bone cutting guide 1 and a second bone cutting guide, wherein the first bone cutting guide 1 is provided with a first guide proximal end 11 and a first guide distal end 12 which are oppositely arranged, and at least one pair of first guide through holes 41 which penetrate through the first guide proximal end 11 and the first guide distal end 12 are arranged on the first bone cutting guide 1; the center lines of the pairs of first guide through holes 41 are arranged in parallel; the first osteotomy guide 1 comprises a first splicing member 15 and a second splicing member 16, and the first guide through hole 41 is formed by detachably splicing the first splicing member 15 and the second splicing member 16; a second osteotomy guide 2, coupled to the first osteotomy guide 1, having a second guide proximal end 21 and a second guide distal end 22 disposed opposite to each other, wherein the second osteotomy guide 2 has at least one pair of second guide through holes 42 passing through the second guide proximal end 21 and the second guide distal end 22; the center lines of the pair of second guide through holes 42 are arranged in parallel; after the first osteotomy guide 1 is matched and connected with the second osteotomy guide 2, a plane where the center lines of the paired first guide through holes 41 are positioned and a plane where the center lines of the paired second guide through holes 42 are positioned form a set angle; the distance between the midpoint of the inner tangent of the pair of first guide through holes 41 at the first guide distal end 12 and the midpoint of the inner tangent of the pair of second guide through holes 42 at the second guide distal end 22 is a set distance; a first indicator 91 detachably mounted inside the first guide through hole 41 and having a first indicator shaft 911, the first indicator shaft 911 extending in a direction parallel to the axial direction of the first guide through hole 41; a second indicator 92 detachably mounted inside the second guide through hole 42, and having a second indication handle 921, wherein an extending direction of the second indication handle 921 is parallel to an axial direction of the second guide through hole 42; the intersection of the first indicator shaft 911 and the second indicator shaft 921 is an osteotomy intersection.
When the perspective-free closed osteotomy guide device is used for osteotomy, the first osteotomy guide 1 is abutted against or fixed at a corresponding position of a bone to be osteotomy, the first indicating piece 91 is installed into the pair of first guide through holes 41, and the indicating direction of the first indicating handle 911 is parallel to the axial direction of the first guide through holes 41; then, the second osteotomy guide 2 is abutted against the corresponding position of the bone to be osteotomy, and the second indicator 92 is installed into the second guide through hole 42, wherein the indicating direction of the second indicator stem 921 is parallel to the axial direction of the second guide through hole 42; determining that the first indication handle 911 and the second indication handle 921 exactly intersect at the target position by adjusting the position of the second osteotomy guide 2, and then fixing the second osteotomy guide 2; the first osteotomy guide 1 and the second osteotomy guide 2 are removed, pierced through the pair of first guide through-holes 41 (proceeding from the first guide proximal end 11 to the first guide distal end 12) using two k-wires, and stapled on the bone to be resected; two additional k-wires are used to pass through a pair of second guide through holes 42 (also from the second guide proximal end 21 to the second guide distal end 22) and are nailed to the bone to be cut; first osteotomy guide 1 and second osteotomy guide 2 all can take off (will separate first splicing 15 and second splicing 16 earlier), can adopt the osteotome to press close to the kirschner wire and cut the bone this moment to guarantee that the angle of cutting the bone is accurate, and two from upper and lower two pairs of kirschner wire positions begin two osteotomy lines of cutting the bone respectively, can put through in predetermined intersect position, thereby once only accomplish high-quality osteotomy. The perspective-free closed osteotomy guiding device can realize accurate high-quality osteotomy at one time, shorten operation time, relieve pain of patients, and can be repeatedly used after adjustment according to the conditions of different patients, and the adjustment is quick and low in cost.
The first indicator 91 includes: a first indicator body; two first mounting shafts 913 provided at a side surface of one end of the first indicator body for being inserted into at least two first guide through holes 41, respectively; and a first indicating handle 911 provided on a side surface of the other end of the first indicator main body and extending in the same direction as the first mounting shaft 913.
The second indicator 92 includes: a second indicator body; two second installation shafts 923 are provided at a side surface of one end of the second indicator main body, and are adapted to be inserted into at least two second guide through holes 42; and a second indication handle 921 provided at a side surface of the other end of the second indication member main body, and extending in the same direction as the second mounting shaft 923.
The first indicating handle 911 is disposed at a position such that the extending direction of the first indicating member 91 after the first indicating member 91 is mounted is the same as the extending direction of the first guide through hole 41, thereby indicating the extending direction of the first guide through hole 41; in the same manner, the second indicating handle 912 can indicate the extending direction of the second guiding through hole 42, and the position of the intersection point of the first indicating handle 911 and the second indicating handle 921 can be reasonably adjusted to the target position by selecting different positions and angles of the second guiding through hole 42 of the second osteotomy guiding element 2, thereby helping to complete high-quality osteotomy at one time.
The first indicator body comprises: a first base 912 having a side wall provided with the first mounting shaft 913 and a top end provided with a first guide mounting hole 915; one end of the first vertical rod 914 is inserted into the first guiding and mounting hole 915 in a pluggable manner, and the side wall of the other end of the first vertical rod is provided with the first indicating handle 911. With such a structure, the first indicating handle 911 can be ensured to extend correctly, and the vertical height of the first indicating handle 911 can be adjusted to avoid being located at the same height as the second indicating handle 921.
The second indicator body includes: a second base 922, the side wall of which is provided with the second mounting shaft 923, and the top end of which is provided with a second guide mounting hole 925; one end of the second vertical rod 924 is inserted into the second guiding and mounting hole 925 in a pluggable manner, and the side wall of the other end is provided with the second indicating handle 921. With such a structure, the second indicator handle 921 can be extended correctly, and the vertical height of the second indicator handle 921 can be adjusted to avoid being located at the same height as the first indicator handle 911.
After the first osteotomy guide 1 and the second osteotomy guide 2 are connected in a matching mode, the included angle between the plane where the center lines of the paired second guide through holes 42 are located and the plane where the center lines of the paired first guide through holes 41 are located is 1-15 degrees.
In the present embodiment, the number of the first osteotomy guide 1 is one, and the number of the second osteotomy guide 2 is 15; the planes of the center lines of the paired second guide through holes 42 arranged on different second osteotomy guide members 2 and the planes of the center lines of the paired first guide through holes 41 respectively form included angles of 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, 10 degrees, 11 degrees, 12 degrees, 13 degrees, 14 degrees or 15 degrees. This range of angles substantially meets the osteotomy needs of most patients. When a specific angle needs to be cut, the second osteotomy guide 2 with the specific angle is selected to be matched with the first osteotomy guide 1.
As shown in fig. 2, the first guide through-holes 41 are provided in the first osteotomy guide 1 in a number of 7; the second guiding through holes 42 are arranged in 4 rows on the second osteotomy guiding member 2, 6 in each row, and the central lines of the second guiding through holes 42 in 4 rows are arranged in parallel.
After the first osteotomy guide 1 is connected with the second osteotomy guide 2 in a matching manner, the distance between an internal tangent of the first guide through hole 41 at the first guide distal end 12 and an internal tangent of the second guide through hole 42 closest to the first osteotomy guide 1 at the second guide distal end 22 is 3 mm. The distance between the circle centers of the second guide far ends 22 of two adjacent pairs of second guide through holes 42 is 4 mm. The distance between the circle centers of the second guide far ends 22 of two adjacent pairs of second guide through holes 42 is 4 mm. Thus, in the closed osteotomy guide of this embodiment, there is a corresponding pair of second guide through holes 42 aligned for positions 3mm, 7mm, 11mm, 15mm from the first pair of k-wires.
The internal tangent of the pair of first guide through holes 41 at the first guide distal end 12 in this embodiment is the tangent of the pair of first guide through holes 41 at the first guide distal end 12 side close to the second osteotomy guide 2; similarly, the internal tangent of the pair of second guiding through holes 42 at the distal end 22 of the second guiding element refers to the tangent of the pair of second guiding through holes 42 at the side of the distal end 22 of the second guiding element close to the first osteotomy guiding element 1.
As shown in fig. 3, further comprises an adjusting block 3 for being insertably mounted between the first osteotomy guide 1 and the second osteotomy guide 2 for increasing a distance between a midpoint of an internal tangent of the pair of first guide through holes 41 at the first guide distal end 13 and a midpoint of an internal tangent of the pair of second guide through holes 42 at the second guide distal end 22.
The adjusting block 3 includes at least one of a first adjusting block 31, a second adjusting block 32, and a third adjusting block 33; wherein: the first adjusting block 31 is inserted between the first osteotomy guide 1 and the second osteotomy guide 2 to increase a distance of 1mm between a midpoint of an internal tangent of the pair of first guide through holes 41 at the first guide distal end 12 and a midpoint of an internal tangent of the pair of second guide through holes 42 at the second guide distal end 22; the second adjusting block 32 is inserted between the first osteotomy guide 1 and the second osteotomy guide 2 to increase the distance 2mm between the midpoint of the internal tangent of the pair of first guide through holes 41 at the first guide distal end 12 and the midpoint of the internal tangent of the pair of second guide through holes 42 at the second guide distal end 22; the third adjustment block 33 is inserted between the first osteotomy guide 1 and the second osteotomy guide 2 to increase the distance of 3mm between the midpoint of the internal tangent of the pair of first guide through holes 41 at the first guide distal end 12 and the midpoint of the internal tangent of the pair of second guide through holes 42 at the second guide distal end 22. Thus, from any one distance of 3-18mm, there may be a pair of second guide through holes 42 aligned therewith to facilitate accurate driving of the second guide through holes.
The first osteotomy guide part 1 is of a U-shaped structure, the first guide through hole 41 is formed in the bottom surface of the U-shaped structure, and guide grooves 13 are formed in two inner side surfaces of the U-shaped structure; the second osteotomy guide 2 is of a T-shaped structure, a vertical section 24 of the T-shaped structure is inserted into the U-shaped structure, and guide protrusions 23 which can be inserted into the guide grooves 13 are arranged on two side walls of the vertical section 24. The U-shaped first osteotomy guide 1 is connected with the T-shaped second osteotomy guide 2 through the guide groove 13 and the guide protrusion 23 in a sliding fit mode, and the movement is more accurate.
The end parts of the two side walls of the U-shaped structure are respectively provided with at least one threaded shaft 14, the horizontal section 25 of the T-shaped structure is provided with an installation through hole 26 opposite to the threaded shaft, and the T-shaped structure further comprises a fastening nut 5 which can be installed on the part of the threaded shaft 14 penetrating out of the installation through hole 26. After the first osteotomy guide part 1, the second osteotomy guide part 2 and the adjusting block 3 are combined, the three parts can be tightly fixed together through the threaded shaft 14, the mounting through hole 26 and the fastening nut 5, and subsequent operation of nailing the kirschner wire is facilitated.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A perspective-free closed osteotomy guiding device is characterized in that: the method comprises the following steps:
the bone cutting guide comprises a first bone cutting guide part (1) and a second bone cutting guide part, wherein the first bone cutting guide part (1) is provided with a first guide part proximal end (11) and a first guide part distal end (12) which are arranged oppositely, and at least one pair of first guide through holes (41) penetrating through the first guide part proximal end (11) and the first guide part distal end (12) are arranged on the first bone cutting guide part (1); the center lines of the first guide through holes (41) in pairs are arranged in parallel; the first truncated guiding element (1) comprises a first splicing element (15) and a second splicing element (16), and the first guiding through hole (41) is formed by detachably splicing the first splicing element (15) and the second splicing element (16);
the second osteotomy guide (2) is matched and connected with the first osteotomy guide (1) and is provided with a second guide proximal end (21) and a second guide distal end (22) which are arranged oppositely, and at least one pair of second guide through holes (42) penetrating through the second guide proximal end (21) and the second guide distal end (22) are arranged on the second osteotomy guide (2); the center lines of the paired second guide through holes (42) are arranged in parallel;
after the first osteotomy guide (1) is matched and connected with the second osteotomy guide (2), a plane where the center lines of the paired first guide through holes (41) are located and a plane where the center lines of the paired second guide through holes (42) are located form a set angle; the distance between the midpoint of the internal tangent of the pair of first guide through holes (41) at the first guide far end (12) and the midpoint of the internal tangent of the pair of second guide through holes (42) at the second guide far end (22) is a set distance;
a first indicator (91) detachably mounted inside the first guide through hole (41) and having a first indicator handle (911), wherein the first indicator handle (911) extends in a direction parallel to the axial direction of the first guide through hole (41);
the second indicating piece (92) is detachably installed inside the second guide through hole (42) and is provided with a second indicating handle (921), and the extending direction of the second indicating handle (921) is parallel to the axial direction of the second guide through hole (42);
the intersection point of the first indicating handle (911) and the second indicating handle (921) is an osteotomy intersection point.
2. The closed osteotomy guide of claim 1, wherein: the first indicator (91) comprises:
a first indicator body;
at least two first mounting shafts (913) provided at a side surface of one end of the first indicator body for being inserted into the at least two first guide through holes (41), respectively;
a first indicating handle (911) provided on a side surface of the other end of the first indicator main body, and extending in the same direction as the first mounting shaft (913);
and/or the presence of a gas in the gas,
the second indicator (92) comprises:
a second indicator body;
at least two second mounting shafts (923) are arranged on the side surface of one end of the second indicator main body and are used for being inserted into the at least two second guide through holes (42);
and a second indication handle (921) disposed on a side surface of the other end of the second indication member main body, and extending in the same direction as the second mounting shaft (923).
3. The closed osteotomy guide of claim 2, wherein: the first indicator body comprises:
a first base (912), the side wall of which is provided with the first mounting shaft (913), and the top end of which is provided with a first guide mounting hole (915);
one end of the first vertical rod (914) is inserted into the first guide mounting hole (915) in a pluggable manner, and the side wall of the other end of the first vertical rod is provided with the first indicating handle (911);
and/or the presence of a gas in the gas,
the second indicator body includes:
the side wall of the second base (922) is provided with a second mounting shaft (923), and the top end of the second base is provided with a second guide mounting hole (925);
and one end of the second vertical rod (924) can be inserted into the second guide mounting hole (925) in a pluggable manner, and the side wall of the other end of the second vertical rod is provided with the second indicating handle (921).
4. The closed osteotomy guide of claim 1, wherein: after the first osteotomy guide part (1) is matched and connected with the second osteotomy guide part (2), the included angle between the plane where the center lines of the paired second guide through holes (42) are positioned and the plane where the center lines of the paired first guide through holes (41) are positioned is 1-15 degrees.
5. The closed osteotomy guide of claim 4, wherein: the first osteotomy guide (1) has one, and the second osteotomy guide (2) has a plurality;
the planes of the center lines of the paired second guide through holes (42) arranged on different second osteotomy guide pieces (2) and the planes of the center lines of the paired first guide through holes (41) respectively form included angles of 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, 7 degrees, 8 degrees, 9 degrees, 10 degrees, 11 degrees, 12 degrees, 13 degrees, 14 degrees or 15 degrees.
6. The closed osteotomy guide of claim 4 or 5, wherein:
the number of the first guide through holes (41) is 2-7 on the first osteotomy guide (1);
the second guiding through holes (42) are arranged in 4 rows on the second osteotomy guiding piece (2), 4-6 of each row are arranged, and the central lines of the 4 rows of second guiding through holes (42) are arranged in parallel.
7. The closed osteotomy guide of claim 6, wherein: after the first osteotomy guide (1) is matched and connected with the second osteotomy guide (2), the distance between the internal tangents of the pair of first guide through holes (41) at the first guide distal end (12) and the internal tangents of the pair of second guide through holes (42) closest to the first osteotomy guide (1) at the second guide distal end (22) is 3 mm.
8. The closed osteotomy guide of claim 7, wherein: the distance between circle center connecting lines of two adjacent pairs of second guide through holes (42) at the far ends (22) of the second guide pieces is 4 mm.
9. The closed osteotomy guide of claim 7 or 8, wherein: the bone cutting device further comprises an adjusting block (3) which is arranged between the first bone cutting guide part (1) and the second bone cutting guide part (2) in a pluggable mode and used for increasing the distance between the middle point of the inner tangent line of the paired first guide through holes (41) at the far end (12) of the first guide part and the middle point of the inner tangent line of the paired second guide through holes (42) at the far end (22) of the second guide part.
10. The closed osteotomy guide of claim 9, wherein: the adjusting block (3) comprises at least one of a first adjusting block (31), a second adjusting block (32) and a third adjusting block (33);
wherein:
the first adjustment block (31) is capable of increasing the distance of 1mm between the midpoint of the internal tangent of the pair of first guide through holes (41) at the first guide distal end (12) and the midpoint of the internal tangent of the pair of second guide through holes (42) at the second guide distal end (22) after being inserted between the first osteotomy guide (1) and the second osteotomy guide (2);
the second adjustment block (32) is capable of increasing the distance of 2mm between the midpoint of the internal tangent of the pair of first guide through holes (41) at the first guide distal end (12) and the midpoint of the internal tangent of the pair of second guide through holes (42) at the second guide distal end (22) after being inserted between the first osteotomy guide (1) and the second osteotomy guide (2);
after the third adjusting block (33) is inserted between the first osteotomy guide (1) and the second osteotomy guide (2), the distance between the midpoint of the internal tangent of the pair of first guide through holes (41) at the first guide distal end (12) and the midpoint of the internal tangent of the pair of second guide through holes (42) at the second guide distal end (22) can be increased by 3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020236739.3U CN211674432U (en) | 2020-03-02 | 2020-03-02 | Perspective-free closed osteotomy guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020236739.3U CN211674432U (en) | 2020-03-02 | 2020-03-02 | Perspective-free closed osteotomy guiding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211674432U true CN211674432U (en) | 2020-10-16 |
Family
ID=72777402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020236739.3U Active CN211674432U (en) | 2020-03-02 | 2020-03-02 | Perspective-free closed osteotomy guiding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211674432U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111195147A (en) * | 2020-03-02 | 2020-05-26 | 山东大学齐鲁医院(青岛) | Closed osteotomy guiding device capable of indicating osteotomy intersection point |
-
2020
- 2020-03-02 CN CN202020236739.3U patent/CN211674432U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111195147A (en) * | 2020-03-02 | 2020-05-26 | 山东大学齐鲁医院(青岛) | Closed osteotomy guiding device capable of indicating osteotomy intersection point |
| CN111195147B (en) * | 2020-03-02 | 2024-07-12 | 山东大学齐鲁医院(青岛) | Closed osteotomy guiding device capable of indicating osteotomy intersection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2021236565B2 (en) | Joint spacer systems and methods | |
| US20090036931A1 (en) | Foot surgery bone plate, and system comprising bone plate and insertion aid | |
| US5449360A (en) | Osteotomy device and method | |
| US7588577B2 (en) | Guide assembly for intramedullary fixation and method of using the same | |
| US8740902B2 (en) | Joint fusion apparatus for the ankle-type joint and arthrodetic pin for use in said apparatus | |
| US5722978A (en) | Osteotomy system | |
| US20080091203A1 (en) | Intramedullary fixation assembly and devices and methods for installing the same | |
| KR20130018646A (en) | Ulna osteotomy system | |
| EP1143863A1 (en) | Surgical chisel | |
| US20210353341A1 (en) | Wedge plates and methods of use | |
| US20150257803A1 (en) | Orthopedic apparatus for correcting rotational bone deformities and method for using the orthopedic apparatus | |
| CN211674432U (en) | Perspective-free closed osteotomy guiding device | |
| CN211674434U (en) | Cut bone guider | |
| CN220404069U (en) | Combined mandibular angle and chin operation osteotomy positioning guide plate for intraoral approach | |
| CN211674435U (en) | Perspective-free multi-angle osteotomy guiding device | |
| CN211674433U (en) | Angle-adjustable osteotomy guiding device | |
| CN111195147A (en) | Closed osteotomy guiding device capable of indicating osteotomy intersection point | |
| US20230043795A1 (en) | Bone repositioning guide system and procedure | |
| CN111195144A (en) | Multi-angle closed osteotomy guiding device | |
| CN111195145A (en) | Closed osteotomy guiding device | |
| US20240108384A1 (en) | Bunion correction system and method | |
| US20210236294A1 (en) | Talar bone plate | |
| CN213217533U (en) | Selective pedicle screw | |
| CN111195146B (en) | Multi-angle closed osteotomy guiding device with indication function | |
| US20240299069A1 (en) | Small bone internal fixation system for orthopedic surgery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |