CN215994221U - Sighting device and implant implanting device comprising same - Google Patents
Sighting device and implant implanting device comprising same Download PDFInfo
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- CN215994221U CN215994221U CN202121610746.6U CN202121610746U CN215994221U CN 215994221 U CN215994221 U CN 215994221U CN 202121610746 U CN202121610746 U CN 202121610746U CN 215994221 U CN215994221 U CN 215994221U
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Abstract
The utility model provides an aiming device and an internal implant implanting device comprising the same, wherein the aiming device comprises a main aiming frame and a side aiming frame; the main aiming frame comprises a main aiming rod for aiming at a first through hole in the main nail and a main nail connecting rod for connecting with the main nail, the main aiming rod and the main nail connecting rod are connected in an angle, and a plurality of main aiming holes are formed in the main aiming rod; the side aiming frame comprises a side aiming rod for aiming at the second through hole on the main nail and a connecting rod for connecting the side aiming rod to the main aiming rod, and a plurality of side aiming holes are formed in the side aiming rod; the central line of the first through hole and the central line of the second through hole are arranged in an angle. The sighting device, the internal implant implanting device and the minimally invasive patella internal fixing device are matched, so that the problems of poor experience, large surgical injury and large surgical difficulty in a patella fracture fixing mode in the prior art can be solved; simple structure, convenient use, can save the operation time and provides a new idea for the patella fracture operation method.
Description
Technical Field
The utility model belongs to the technical field of orthopedic medical instruments, and particularly relates to an aiming device and an internal implant implanting device comprising the same.
Background
In the field of orthopedic medical treatment, patellar fracture is a common injury type, and is usually fixed by using bone plates, kirschner wires, cables and other modes, which are usually open type operations, so that the injury to a patient is large, the peripheral nerve vessels of the patella are few, ligaments are many, and the patient is seriously injured by the open type operations and is not easy to recover; the bone plate or the cable is implanted into a human body for a long time, and rubs with tissues for a long time, so that the generated pain and discomfort can be strong, and the implant can be clearly touched due to thinner skin, the experience of a patient is reduced, different degrees of troubles are caused, and the operation time and difficulty are increased for doctors.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems of poor experience, large surgical injury and large surgical difficulty in the existing fracture fixation mode, and further provides a sighting device suitable for minimally invasive patella nail implantation and an internal implant implantation device comprising the sighting device.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a sighting device comprises a main sighting frame and a side sighting frame;
the main aiming frame comprises a main aiming rod for aiming at a first through hole in the main nail and a main nail connecting rod for connecting with the main nail, the main aiming rod and the main nail connecting rod are connected in an angle, and a plurality of main aiming holes are formed in the main aiming rod;
the side aiming frame comprises a side aiming rod for aiming at the second through hole on the main nail and a connecting rod for connecting the side aiming rod to the main aiming rod, and a plurality of side aiming holes are formed in the side aiming rod;
the central line of the first through hole and the central line of the second through hole are arranged in an angle.
Further, the center points of the plurality of main aiming holes are in a straight line or the plurality of main aiming holes are staggered.
Furthermore, a main nail connecting positioning hole is formed in the main nail connecting rod, a main nail positioning boss is arranged at the free end of the main nail connecting rod, when the main nail connecting rod is connected with the main nail, the main nail positioning boss is located in the main nail positioning groove, and the positioning pin penetrates through the main nail connecting positioning hole to be fixedly connected with the main nail.
Further, the connecting rod sets up in side sighting rod both ends, is provided with first screw hole on the main sighting rod, and the connecting rod passes through the locking bolt to be fixed in the first screw hole on the main sighting rod.
Further, the center points of the plurality of side aiming holes are in a straight line or the plurality of main aiming holes are staggered.
Further, the main aiming block and the side aiming block are of an integral structure.
Furthermore, a pin rod is arranged on the main sighting rod, a positioning hole is formed in one end, connected with the main sighting rod, of the connecting rod, and the pin rod and the positioning hole are correspondingly arranged.
Further, the sighting device also comprises a protective sleeve, and the outer diameter of the protective sleeve is consistent with the diameter of the first through hole or the second through hole.
Further, the sight is also provided with a handle, and the handle and the main nail connecting rod are respectively arranged on two sides of one end of the main sighting rod.
The present invention also provides an endoprosthesis implantation device comprising an aimer as described above.
Compared with the prior art, the utility model has the following beneficial effects:
the sighting device and the internal implant implanting device comprising the sighting device are matched with the minimally invasive patella internal fixing device, so that the problems of poor experience, large surgical injury and large surgical difficulty in a patella fracture fixing mode in the prior art can be solved;
the sighting device provided by the utility model has the advantages that the structure is simple, the use is convenient, a plurality of through holes in different directions on the main nail can be simultaneously and accurately positioned, and the operation time can be saved;
the sighting device and the endoprosthesis implanting device comprising the sighting device are particularly suitable for aiming and positioning the main nail of the minimally invasive patella nail, and a new thought is provided for a patella fracture surgery method.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of a minimally invasive intra-patellar fixation device provided in one embodiment;
FIG. 2 is a schematic structural diagram of a main nail in the minimally invasive patella internal fixation device provided by one embodiment;
FIG. 3 is a schematic diagram illustrating a primary end structure of a main nail in the minimally invasive patella internal fixation device according to an embodiment;
FIG. 4 is a schematic structural diagram of the sighting device aiming at the minimally invasive patella nail main nail provided by the embodiment;
FIG. 5 is a schematic diagram of a sight according to an embodiment;
FIG. 6 is a right side view of FIG. 5;
FIG. 7 is a cross-sectional view of a primary aiming block provided in one embodiment;
FIG. 8 is a schematic diagram of a side aiming block according to an embodiment;
FIG. 9 is a cross-sectional view of one embodiment of a locking bolt;
wherein:
1-a main aiming block;
11-a handle; 12-a primary sighting rod; 13-main nail positioning boss; 14-connecting the main nail with the positioning hole; 15-a main aiming hole; 16-a first threaded hole; 17-a pin rod; 18-main nail connecting rod;
2-locking the bolt;
3-side aiming block;
31-side sighting rod; 32-connecting hole; 33-positioning holes; 34-side aiming hole; 35-a connecting rod;
4-protecting the sleeve;
5-positioning pins;
6-main nail;
61-a second threaded hole; 62-positioning grooves; 63-a first via; 64-a second via; 65-a conical head;
7-fixing nails.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Aiming at the problems of poor experience, large surgical injury and large surgical difficulty in the patella fracture fixing mode in the prior art, the utility model provides a sighting device suitable for implanting a minimally invasive patella internal fixing device and an internal implant implanting device comprising the sighting device, but the sighting device is not limited to aiming when the minimally invasive patella internal fixing device is implanted, and can also be used for aiming when other internal fixing devices are implanted, and a person skilled in the art can select the internal fixing device suitable for aiming according to the structure of the sighting device;
the sighting device provided by the utility model comprises a main sighting frame and a side sighting frame;
the main aiming frame comprises a main aiming rod for aiming at a first through hole in the main nail and a main nail connecting rod for connecting with the main nail, the main aiming rod and the main nail connecting rod are connected in an angle, and a plurality of main aiming holes are formed in the main aiming rod;
the side aiming frame comprises a side aiming rod for aiming at the second through hole on the main nail and a connecting rod for connecting the side aiming rod to the main aiming rod, and a plurality of side aiming holes are formed in the side aiming rod;
the central line of the first through hole and the central line of the second through hole are arranged in an angle.
The sighting device is simple in structure and convenient to use, can simultaneously and accurately position a plurality of through holes in different directions on the main nail, and can save operation time; the sighting device is particularly suitable for aiming and positioning of the minimally invasive main nail of the patella nail, provides a new idea for a patella fracture operation method, and can solve the problems of poor experience, large operation damage and large operation difficulty of the patella fracture fixing mode in the prior art by matching with a minimally invasive internal patella fixing device.
The center points of the plurality of main aiming holes are in a straight line or the plurality of main aiming holes are staggered.
For making main nail connecting rod and main nail firm in connection, be difficult for rocking, be provided with main nail on the main nail connecting rod and connect the locating hole, the free end of main nail connecting rod is provided with main nail location boss, and when main nail connecting rod was connected with main nail, main nail location boss was located main nail positioning groove, and the locating pin passed main nail and connects the locating hole and be connected fixedly with main nail.
For the main aiming arm and the side aiming arm firm in connection who ensures the sight, do not rock at the operation in-process, the connecting rod sets up in side aiming arm both ends, and side aiming arm both ends all set up the connecting rod promptly and are connected with main aiming arm, are provided with first screw hole on the main aiming arm, and the connecting rod is fixed in the first screw hole on the main aiming arm through locking bolt.
In order to further ensure that the main aiming block and the side aiming block of the sighting device are firmly connected, the main aiming block and the side aiming block are of an integrated structure.
The main sighting holes on the main sighting rod and the side sighting holes on the side sighting rod can be designed according to the positions of the first through holes or the second through holes on the main nails, and the main sighting holes can be arranged in a single row or in a multi-row staggered manner. In order to be convenient for adapting to different main nails, the main aiming block and the side aiming block can be provided with various specifications, and different main aiming block and side aiming block combinations can be selected according to requirements during operation.
In order to facilitate the assembly of the sighting device, a pin rod is arranged on the main sighting rod, a positioning hole is formed in one end, connected with the main sighting rod, of the connecting rod, and the pin rod and the positioning hole are correspondingly arranged. In the assembling process of the sighting device, the pin rod is matched with the positioning hole, and the side sighting frame is fixed on the main sighting rod through the locking bolt and the threaded hole, so that the assembling time of the sighting device can be saved, and the operation time is shortened.
In order to facilitate the implantation of the locking nail into the through hole of the main nail, the sighting device further comprises a protective sleeve, and the outer diameter of the protective sleeve is consistent with the diameter of the first through hole or the second through hole so as to ensure accurate positioning.
In order to facilitate the operation when an operator holds the sighting device, the sighting device is also provided with a handle, and the handle and the main nail connecting rod are respectively arranged on two sides of one end of the main sighting rod.
The utility model also provides an implant implanting device, which comprises the sighting device and can also comprise other implanting instruments, such as an osteotome instrument, a driving handle and the like.
The minimally invasive patella internal fixation device suitable for aiming of the sighting device has the following specific structure:
the minimally invasive patella internal fixation device is shown in fig. 1-3 and comprises a main nail 6 and a fixing nail 7 arranged in a through hole of the main nail 6, wherein the length of the main nail 6 is 30-50 mm, such as 32mm, 35mm, 40mm or 45mm, the main nails 6 with different lengths can be selected according to requirements of a patient for use, the main nail 6 is a solid rod or a hollow rod, the solid rod is more accurately positioned, the mass of the hollow rod is lighter, the cross-sectional diameter of the main nail 6 is 4-10 mm, such as 4.5mm, 5mm, 6mm or 8mm, so as to meet the requirements of minimally invasive surgery, the outer surface of the main nail 6 is smooth or is provided with threads, the smooth main nail 6 can be directly connected with a sighting frame for use, the threaded main nail 6 needs to be screwed in, and fixation is realized by means of a driving handle 11.
The initial end of main nail 6 is provided with second screw hole 61, is located processing has constant head tank 62 around second screw hole 61, the number of constant head tank 62 is a plurality of, if can be 3 or 5 etc, and with the perpendicular setting of initial terminal surface of main nail 6 can correspond a plurality of different position like this and fix, conveniently carry out the chucking of a plurality of directions and fix.
The main nail 6 is provided with a plurality of through holes penetrating through the main nail 6, the through holes are uniformly distributed in a plurality of rows (such as a first through hole 63 and a second through hole 64) along the axial direction of the main nail 6, such as 2 rows, 3 rows or 4 rows, the through holes in each two rows are mutually staggered, the included angle between the central lines of the adjacent through holes is 10 degrees to 90 degrees, such as 20 degrees, 30 degrees, 45 degrees, 50 degrees or 70 degrees, and the like, so that the fixing nail 7 can be used when different-angle fracture is fixed, the fixing nail 7 (locking nail or leather nail) passes through the through hole in the rod part of the main nail 6 through the sighting device and penetrates out of the main nail 6, the two ends of the fracture are fixed in a crossed manner from different angles, the fixing nail 7 can be embedded into the patella to reduce the stimulation of the nail cap to a patient, and a space three-dimensional structure is formed due to the multi-angle implantation of the fixing nail 7 from the two ends of the fracture, so that the fracture is stable and optimized, the through holes are unthreaded holes, and the diameter of the through holes 4 is larger than that the diameter of the fixing nail 7, therefore, the fracture nail is not stably connected with the fixing nail 7, a small amount of gaps exist, and the fracture position has certain micro momentum, so that the fracture growth can be stimulated, the healing is accelerated, and the difficult problem of large injury in open surgery is solved.
The distribution of the through holes on the main nail 6 can be various, and is not limited to be uniformly distributed on the main nail 6 along the axis of the main nail 6 in multiple rows, and the distribution form can be set according to actual needs. However, the main nails 6 are uniformly distributed along the axis in multiple rows and are distributed in a staggered manner, so that the processing is facilitated, and the mechanical strength of each part of the main nails 6 is conveniently controlled, therefore, the preferred scheme is provided.
Preferably, the conical head 65 is a flat head structure or a self-tapping structure, and the flat head structure and the self-tapping structure can be matched with the smooth main nail 6 or the threaded main nail 6 for random combination.
Fixing device in wicresoft's patella still includes ossicle fracture piece staple 7 (not shown in the figure), is located the tail end of main nail 61 is provided with the third screw hole along the axial, and ossicle fracture piece staple 7 and the fixed ossicle fracture piece of third screw hole cooperation are close to third screw hole one side, if have ossicle fracture piece, 6 cadre hole sites of main nail can't effectively be fixed to it again, and third screw hole cooperation locking screw can be used for fixed ossicle fracture piece this moment.
When the patella is fractured, generally, the fracture is divided into transverse, longitudinal and oblique fractures or a plurality of comminuted fractures of the three, the skin tissue at the position of the patella is relatively thin, because the patella is protruded, a minimally invasive fixing main nail 6 can be adopted, the main nail 6 is implanted into the patella in any direction, the main nail 6 is completely immersed into the patella, under the cooperation of a sighting device, a locking nail or a skin nail penetrates through a through hole at the rod part of the main nail 6 through the sighting device, the two ends of the fracture are fixed in a crossed manner from different angles, the locking nail or the skin nail can be embedded into the patella to reduce the stimulation of the protrusion of a nail cap to a patient, because the locking nail or the skin nail is implanted from the two ends of the fracture in multiple angles, a spatial three-dimensional structure is formed, the fracture stability is ensured, the through hole at the rod part of the main nail 6 is a light hole, and is not stably connected with the locking nail or the skin nail, a small amount of clearance exists, and the fracture position has a certain micro momentum, the fracture growth can be stimulated, and the healing is accelerated; the whole structure is implanted by adopting a minimally invasive therapy, all the implants are convex, the stimulation to soft tissues is reduced, and the purpose of fracture fixation is fulfilled while stable fixation is provided and on the premise of minimal intraoperative trauma.
One embodiment provides an endoprosthesis implantation device as shown in fig. 4-9, comprising an aiming device comprising a main aiming block 1, a side aiming block 3 and a protection sleeve 4;
the main aiming frame 1 is of an integrated structure and comprises a main aiming rod 12 for aiming at a first through hole 63 on a main nail 6, a main nail connecting rod 18 for connecting with the main nail 6 and a handle 11 convenient to hold in operation, wherein the handle 11 and the main nail connecting rod 18 are respectively positioned at two sides of one end of the main aiming rod 12; the main sighting rod 12 is connected with the main nail connecting rod 18 in an angle mode, a plurality of main sighting holes 15 and first threaded holes 16 connected with the side sighting frames 3 are formed in the main sighting rod 12, pin rods 17 used for positioning the connecting rods 35 are further arranged, and the main sighting holes 15 are respectively aligned with the first through holes 63; the center points of the plurality of main aiming holes 15 are in a straight line or the plurality of main aiming holes 15 are staggered; the main nail connecting rod 18 is provided with a main nail connecting positioning hole 14, the free end of the main nail connecting rod 18 is provided with a main nail 6 positioning boss 13, when the main nail connecting rod 18 is connected with the main nail 6, the main nail 6 positioning boss 13 is positioned in the main nail 6 positioning groove, and the positioning pin 5 penetrates through the main nail connecting positioning hole 14 to be connected and fixed with the main nail 6;
the side aiming block 3 is a one-piece structure, the side aiming block 3 comprises a side aiming rod 31 for aiming at the second through hole 64 on the main nail 6 and a connecting rod 35 for connecting the side aiming rod 31 to the main aiming rod 12, a plurality of side aiming holes 34 are arranged on the side aiming rod 31 and are respectively aligned with the second through holes 64; the center points of the plurality of side aiming holes 34 are in a straight line or the plurality of main aiming holes 15 are staggered; the connecting rods 35 are arranged at two ends of the side sighting rod 31, one end of each connecting rod 35, which is connected with the main sighting rod 12, is provided with a connecting hole 32 and a positioning hole 33, the connecting rods 35 are fixed in threaded holes in the main sighting rod 12 through locking bolts 2, and the positioning holes 33 are arranged corresponding to the pin rods 17;
the central line of the first through hole 63 and the central line of the second through hole 64 are arranged at an angle;
the protection sleeve 4 can be inserted into the first through hole 63 or the second through hole 64 of the main nail 6 through the main aiming hole 15 or the side aiming hole 34, and the outer diameter of the protection sleeve 4 is in conformity with the diameter of the first through hole 63 or the second through hole 64.
The use method of the sighting device comprises the following steps:
(1) placing the main nail 6 in a pre-drilled hole channel of the patella;
(2) connecting the main nail connecting rod 18 of the sight with the main nail 6, with the main aiming hole 15 aligned with the first through hole 63 on the main nail 6; the side aiming hole 34 is aligned with the second through hole 64 on the main nail 6;
(3) placing the protective sleeve 4 in the main aiming hole 15 and the first through hole 63, and implanting the fixing nail 7; then the protective sleeve 4 is placed in the side aiming hole 34 and the second through hole 64, and the fixing nail 7 is implanted;
(4) the sighting device is rotated as required, the positioning boss 13 of the main nail 6 is matched with the positioning groove 62 to realize the positioning of the sighting device, so that the main aiming hole 15 or the side aiming hole 34 is aligned with the rest through holes, and the fixing nail 7 is implanted through the protective sleeve 4 to realize the fixation of the patellar fracture.
The sighting device provided by the utility model is matched with the minimally invasive patella internal fixation device, so that the problems of poor experience, large operation damage and large operation difficulty in a patella fracture fixation mode in the prior art can be solved; the structure is simple, the use is convenient, a plurality of through holes in different directions on the main nail 6 can be simultaneously and accurately positioned, and the operation time can be saved; is particularly suitable for aiming and positioning the main nail 6 of the minimally invasive patella nail, and provides a new idea for the patella fracture surgery method.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The sighting device is characterized by comprising a main sighting frame and a side sighting frame;
the main aiming frame comprises a main aiming rod for aiming at a first through hole in the main nail and a main nail connecting rod for connecting with the main nail, the main aiming rod and the main nail connecting rod are connected in an angle, and a plurality of main aiming holes are formed in the main aiming rod;
the side aiming frame comprises a side aiming rod for aiming at the second through hole on the main nail and a connecting rod for connecting the side aiming rod to the main aiming rod, and a plurality of side aiming holes are formed in the side aiming rod;
the central line of the first through hole and the central line of the second through hole are arranged in an angle.
2. The sight of claim 1, wherein the center points of the plurality of primary sight holes are collinear or the plurality of primary sight holes are staggered.
3. The sight of claim 1, wherein the main nail connecting rod is provided with a main nail connecting positioning hole, the free end of the main nail connecting rod is provided with a main nail positioning boss, when the main nail connecting rod is connected with the main nail, the main nail positioning boss is positioned in the main nail positioning groove, and the positioning pin passes through the main nail connecting positioning hole to be fixedly connected with the main nail.
4. The sight of claim 1, wherein the connecting rod is disposed at each end of the side sight and the main sight has a first threaded bore, the connecting rod being secured to the main sight by a locking bolt in the first threaded bore.
5. The sight of claim 1, wherein the center points of the plurality of side sight holes are aligned or the plurality of main sight holes are staggered.
6. The sight of claim 1, wherein the main sight frame and the side sight frame are each a unitary structure.
7. The sight of claim 1, wherein the main sight rod is provided with a pin rod, one end of the connecting rod connected with the main sight rod is provided with a positioning hole, and the pin rod and the positioning hole are correspondingly arranged.
8. The sight of claim 1, further comprising a protective sleeve having an outer diameter that coincides with the diameter of the first or second through-holes.
9. The sight of claim 1, further comprising a handle, wherein the handle and the main nail connecting rod are disposed on opposite sides of one end of the main sight.
10. An endoprosthesis implantation device comprising the aimer of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121610746.6U CN215994221U (en) | 2021-07-15 | 2021-07-15 | Sighting device and implant implanting device comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121610746.6U CN215994221U (en) | 2021-07-15 | 2021-07-15 | Sighting device and implant implanting device comprising same |
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| Publication Number | Publication Date |
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| CN215994221U true CN215994221U (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121610746.6U Active CN215994221U (en) | 2021-07-15 | 2021-07-15 | Sighting device and implant implanting device comprising same |
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| CN (1) | CN215994221U (en) |
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2021
- 2021-07-15 CN CN202121610746.6U patent/CN215994221U/en active Active
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