阅读说明：本技术 一种上颌窦内提升工具盒 (Tool box for lifting inside of maxillary sinus ) 是由 梁光强 于 2021-03-16 设计创作，主要内容包括：本发明公开了一种上颌窦内提升工具盒,包括环切钻和冲顶凿,所述环切钻包括钻杆和圆柱形空心钻头,所述钻头的一端密封另一端开口,所述钻杆固定连接在所述钻头密封端中心且与所述钻头同轴连接,所述钻头开口端设置锯齿；所述冲顶凿包括手柄和工作头,所述工作头包括固定在一起的连接部和头部,所述头部端面为凹面,所述工作头通过所述连接部与所述手柄可拆卸连接。本发明工具盒中的手术工具精致小巧,使得上颌窦内提升术操作简单、安全易控,避免造成上颌窦黏膜破裂。(The invention discloses a tool box for lifting in a maxillary sinus, which comprises a trephine and a top-flushing chisel, wherein the trephine comprises a drill rod and a cylindrical hollow drill bit, one end of the drill bit is sealed, the other end of the drill bit is opened, the drill rod is fixedly connected to the center of the sealed end of the drill bit and is coaxially connected with the drill bit, and the open end of the drill bit is provided with sawteeth; the top punching chisel comprises a handle and a working head, the working head comprises a connecting part and a head part which are fixed together, the end face of the head part is a concave surface, and the working head is detachably connected with the handle through the connecting part. The operation tool in the tool box is exquisite and small, so that the maxillary sinus lifting operation is simple to operate, safe and easy to control, and the rupture of the mucosa of the maxillary sinus is avoided.)

1. The utility model provides a promote toolbox in maxillary sinus which characterized in that: the drill bit comprises a circular cutting drill and a top-flushing chisel, wherein the circular cutting drill comprises a drill rod and a cylindrical hollow drill bit, one end of the drill bit is sealed, the other end of the drill bit is opened, the drill rod is fixedly connected to the center of the sealed end of the drill bit and is coaxially connected with the drill bit, and the open end of the drill bit is provided with sawteeth; the top punching chisel comprises a handle and a working head, the working head comprises a connecting part and a head part which are fixed together, the end face of the head part is a concave surface, and the working head is detachably connected with the handle through the connecting part.

2. The maxillary sinus internal lifting tool holder of claim 1, wherein: the drill rod is cylindrical, and the tail end of the drill rod is provided with an annular groove.

3. The maxillary sinus internal lifting tool holder of claim 1, wherein: the drill rod is connected with the drill bit through a first limiting ring, and the diameter of the first limiting ring is larger than the outer diameter of the drill bit.

4. A maxillary sinus lifting tool holder according to claim 3 wherein: the ring cutting drill further comprises a first stop ring sleeved on the drill bit, and the inner diameter of the first stop ring is larger than the outer diameter of the drill bit and smaller than the diameter of the first limit ring.

5. The maxillary sinus internal lifting tool holder of claim 1, wherein: and a long-strip-shaped cleaning groove is arranged on the drill bit along the long axis direction.

6. The maxillary sinus internal lifting tool holder of claim 1, wherein: the rear part of the handle is a holding part with a larger diameter, the front part of the handle is bent, the end part of the handle is a hollow tubular slot, the connecting part is a cylinder with the same shape as the slot, and the working head is spliced with the handle through the connecting part and the slot.

7. The maxillary sinus internal lifting tool holder of claim 1, wherein: the connecting part is coaxially connected with the head, a second limiting ring is arranged at the connecting part, and the diameter of the second limiting ring is larger than that of the head.

8. The maxillary sinus internal lifting tool holder of claim 7 wherein: the head is provided with a second stop ring.

9. The maxillary sinus internal lifting tool holder of claim 8 wherein: the head is a cylinder provided with an external thread, the thread pitch of the external thread is 0.5mm, and the second stop ring is a stop nut matched with the head.

Technical Field

The invention relates to the field of dental implant tools in stomatology, in particular to a tool box for lifting inside a maxillary sinus.

Background

As more and more people lose the teeth, the implant teeth are gradually accepted as the internationally accepted 'third pair of human teeth', more and more people begin to receive the implant teeth, and the benefits brought by the implant teeth are also felt. When the maxillary posterior tooth is missing, the maxillary sinus floor is often insufficient in height for alveolar ridge absorption, and the implant may penetrate the maxillary sinus wall and mucosa. In order to implant the implant, it is often necessary to implant some substitute of synthetic bone to lift it into position so as to ensure that the implant is in the maxilla, a procedure known as maxillary sinus lift. Maxillary sinus lifting includes external lifting via fenestration of maxillary sinus lateral wall and internal lifting via alveolar ridge apical approach. The principle of the lifting in the maxillary sinus is that the maxillary sinus floor mucosa is lifted and separated to form a cavity, and the hyperosteogeny is caused by the generation of fibrin clot. The maxillary sinus external lifting operation can lift mucous membrane under direct vision, but the operation wound is larger, and complications are easy to occur after the operation.

Because promote postoperative complication few, healing time short, easy operation in the maxillary sinus, and it is littleer to the patient's damage, the patient is more accepted. The clinical top-flushing maxillary sinus lifting operation is to prepare a bone hole, namely an implant hole, through the crest of an alveolar ridge, then use an ejector to impact and push a sinus floor bone into the sinus to lift the sinus floor mucosa, and select and fill bone substitutes or directly implant the bone substitutes into the implant according to the lifted height. However, when the bone hole is prepared at the crest of the alveolar ridge, the depth of the implant hole cannot be accurately controlled by a common bone drill, so that the maxillary sinus floor bone is too thick or directly drills through the maxillary sinus floor cortical bone and the mucosa, and when the maxillary sinus floor bone is too thick, the bone punch needs to apply a large force when pushing the maxillary sinus floor bone into the sinus, so that the mucosa is easily broken due to excessive force. In addition, the top flushing device in the prior art is not provided with a blocking result, so that the control and the grasping difficulty of the lifting amount are high, and the operation efficiency and the operation effect are influenced.

Chinese patent No. CN 204133625U discloses a spiral maxillary sinus internal lifting device and an internal lifting system, which comprises a positioning guide plate, a lifting rod and a ring block gauge; the positioning guide plate is provided with a guide hole corresponding to the planting pit, a threaded sleeve is fixed in the guide hole, the outer wall of the threaded sleeve is matched with the guide hole, and the inner wall of the threaded sleeve is provided with internal threads; the lifting rod consists of a stress part, a check ring and a working part, the stress part and the working part are separated by the check ring, the working part comprises a thread section, a head part and a connecting section, the thread section is meshed with the internal thread of the thread sleeve, and the ring sleeve block gauge is provided with the internal thread; in the operation process, the top surface of the guide hole is used as a positioning reference surface, and the length of the working part of the lifting rod is greater than the distance from the top surface of the guide hole to the bottom of the planting nest; inner lifting height H of lifting rod is L-H₁-H_z. A spiral maxillary sinus internal lifting system is composed of the maxillary sinus internal lifting device and a hole preparation tool, wherein the hole preparation tool comprises a drill bit and a pressing plate. The invention has high lifting precision, and can be used without damaging the planting pitThe advantages of retention of the inner lifting device are achieved. However, the lifting system is complex in structure, complex in operation, easy to move for the positioning guide plate and low in practicability.

Chinese patent No. CN 207949918U discloses an maxillary sinus internal lifting device, which comprises a handle, an adjusting nut, a mandril and a crank; the upper end of the handle is connected with a crank, and the upper end of the crank is screwed with a mandril through an adjusting nut; it also comprises a protective sleeve; the protective sleeve consists of a silica gel antibacterial sleeve and blood-sucking cotton; the outer wall of the silica gel antibacterial sleeve is provided with blood-sucking cotton; the top end of the silica gel antibacterial sleeve is provided with an inward concave surface matched with the upper end surface of the ejector rod. Can adsorb the blood that oozes in the planting hole that is equipped with to, avoid the work end to push up the in-process and appear skidding, alleviate the sterile burden of instrument simultaneously, the practicality is stronger. However, the lifting device has no stop ring, and is easy to be lifted excessively, so that the mucous membrane is broken.

Disclosure of Invention

In view of the above, the present invention provides a maxillary sinus lifting tool box, which is compact and exquisite in surgical tools, so that the maxillary sinus lifting operation is simple to operate, safe and easy to control, and the rupture of the mucosa of the maxillary sinus is avoided.

In order to achieve the purpose, the invention adopts the following technical scheme: a tool box for lifting in a maxillary sinus comprises a trepanning drill and a top-punching drill, wherein the trepanning drill comprises a drill rod and a cylindrical hollow drill bit, one end of the drill bit is sealed, the other end of the drill bit is opened, the drill rod is fixedly connected to the center of the sealed end of the drill bit and is coaxially connected with the drill bit, and the open end of the drill bit is provided with sawteeth; the top punching chisel comprises a handle and a working head, the working head comprises a connecting part and a head part which are fixed together, the end face of the head part is a concave surface, and the working head is detachably connected with the handle through the connecting part.

As a further improvement of the invention, the drill rod is cylindrical, and the tail end of the drill rod is provided with an annular groove.

As a further improvement of the invention, a first limit ring is arranged at the joint of the drill rod and the drill bit, and the diameter of the first limit ring is larger than the outer diameter of the drill bit.

As a further improvement of the invention, the ring cutting drill also comprises a first stop ring sleeved on the drill bit, and the inner diameter of the first stop ring is larger than the outer diameter of the drill bit and smaller than the diameter of the first limit ring.

As a further improvement of the invention, the drill bit is provided with a long-strip-shaped cleaning groove along the long axis direction.

As a further improvement of the present invention, the specification of the first stop ring is based on the length of the sawtooth exceeding the stop ring, and the specification of the stop ring is as follows: 2.0mm, 3.0mm, 4.0mm, 4.5mm, 5.0 mm.

Furthermore, the rear part of the top punching chisel handle is a holding part with a larger diameter, the front part of the handle is bent, the end part of the handle is a hollow tubular slot, the connecting part is a cylinder with the shape consistent with that of the slot, and the working head is spliced with the handle through the connecting part and the slot.

As a further improvement of the invention, the rear part of the handle is a holding part with a larger diameter, the front part of the handle is bent, the end part of the handle is a hollow threaded pipe provided with internal threads, the connecting part is a cylinder provided with external threads, and the working head is in threaded connection with the handle through the connecting part and the threaded pipe.

As a further improvement of the invention, the connecting part is coaxially connected with the head part, a second limiting ring is arranged at the connecting part, and the diameter of the second limiting ring is larger than that of the head part.

As a further development of the invention, the head is provided with a second stop ring.

As a further improvement of the invention, the head is a cylinder provided with an external thread, the thread pitch of the external thread is 0.5mm, and the second stop ring is a stop nut matched with the head.

The using method and the beneficial effects of the invention are as follows:

the trephine is used for drilling a part to be implanted into an implant, and the part 1mm away from the maxillary sinus floor is stopped, and the trephine can be sleeved into the first stop ring, so that the thickness of a bone between the alveolar ridge top and the maxillary sinus floor can be accurately measured according to an X-ray film. The incision depth is accurately reached to a position 1mm away from the maxillary sinus floor, and the cortical bone 1mm away from the maxillary sinus floor is not cut off. Then the head of the working head of the maxillary sinus punch top chisel which is smaller than the diameter of the trephine is used for propping against a bone column formed by the trephine to lightly knock, so that the bone green branch fracture which is not cut off by 1mm is remained, the bone column is slowly pushed into the maxillary sinus when the implant is screwed in, and the lifting operation in the maxillary sinus is smoothly completed. The bone column is not separated from the maxillary sinus membrane, so that the blood supply is not disconnected, the effect of promoting autologous bone hyperplasia transplantation by the maxillary sinus is achieved, and the artificial bone powder is not required to be implanted.

The first stop ring has a plurality of specifications, the specification of the first stop ring is that the first stop ring is sleeved on a circular cutting drill, and the dimension of the saw tooth of the circular cutting drill bit, which is longer than the stop ring, is set as 2.0mm, 3.0mm, 4.0mm, 4.5mm and 5.0 mm; i.e., the trephine bit is 2.0mm longer than the first stop ring, the gauge of the first stop ring is 2.0mm, rather than the length of the first stop ring itself. The length of the device is graded according to 1mm, and a distance of 4.5mm is increased between 4mm and 5mm, so that the precision is higher.

The head is the cylinder that is provided with the external screw thread, and the pitch of external screw thread is 0.5mm, the second stop ring be with head complex stop nut, the distance of second stop ring to head tip is adjustable, and every rotatory second stop ring adjusts 0.5mm promptly and dashes a height, and it is stronger to dash to push up the operation controllability.

Surgical instruments are exquisite, small and relatively perfect, the first stop ring and the second stop ring can realize the difference level accurate control and strike in the lifting height, safe high-efficient, can directly implant corresponding implant simultaneously, save and strike in the lifting back, prepare the step of the implant degree of depth once more.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the ring cutting drill of the present invention.

FIG. 2 is a schematic view of the assembly of the trephine of the present invention.

Fig. 3 is a schematic structural diagram of the top-punching chisel of the present invention.

Fig. 4 is a schematic view of the assembly relationship of the impact top chisel of the present invention.

FIG. 5 is a schematic diagram showing the result of one working head of the present invention.

11-drill rod, 12-drill bit, 13-sawtooth, 14-groove, 15-first limit ring, 16-first stop ring, 17-cleaning groove, 21-handle, 22-working head, 23-connecting part, 24-head, 25-second limit ring and 26-second stop ring.

Detailed Description

The invention is further illustrated by the following figures and examples. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some components of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual article; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example one

As shown in fig. 1-4, a maxillary sinus inner lifting tool box comprises a circular cutting drill and a punching top chisel, wherein the circular cutting drill comprises a drill rod 11 and a cylindrical hollow drill bit 12, one end of the drill bit 12 is sealed, the other end of the drill bit 12 is opened, the drill rod 11 is fixedly connected to the center of the sealed end of the drill bit 12 and is coaxially connected with the drill bit 12, and sawteeth 13 are arranged on the outer end surface of the drill bit wall at the opening end of the drill bit 12. The drill rod 11 is cylindrical, an annular groove 14 is formed in the tail end of the drill rod 11, and the circular cutting drill is positioned through the groove 14 and fixed on a chuck of the medical bone drill.

A first limiting ring 15 is arranged at the joint of the drill rod 11 and the drill bit 12, and the diameter of the first limiting ring 15 is larger than the outer diameter of the drill bit 12. The trephine further comprises a first stop ring 16 sleeved on the drill bit 12, wherein the inner diameter of the first stop ring 16 is larger than the outer diameter of the drill bit 12 and smaller than the diameter of the first limit ring 15. The first stop ring 16 is sleeved on the drill bit 12 and blocked by the first limit ring 15, and the first stop ring 16 cannot fall off when the drill bit 12 works. The length of the first stop ring 16 is less than the length of the drill bit 12.

The drill bit 12 is provided with a long-strip-shaped cleaning groove 17 along the long axis direction, and the drill bit is cleaned and disinfected conveniently through the cleaning groove 17 after being used.

The top punch comprises a handle 21 and a working head 22, the working head 22 comprises a connecting part 23 and a head part 24 which are fixed together, the end face of the head part 24 is a concave face, and the working head 22 is detachably connected with the handle 21 through the connecting part 23.

The rear part of the punching and ejecting chisel handle 21 is a holding part with a larger diameter, so that the holding part is convenient to hold during operation, and the holding part is more stable during forced punching and ejecting, so that overlarge displacement is avoided, and mucous membranes are punctured. The front part of the handle 21 is bent, so that the operation on the back part of the oral cavity is convenient. The front end part of the handle 21 is a hollow tubular slot, the connecting part 23 is a cylinder with the shape consistent with that of the slot, and the working head 22 is inserted into the handle 21 through the connecting part 23 and the slot. The plug-in connection mode is convenient for the installation of the punching chisel, is easy to disassemble and is convenient for cleaning and disinfection. The connecting part 23 is coaxially connected with the head part 24, a second limiting ring 25 is arranged at the connecting part, and the diameter of the second limiting ring 25 is larger than that of the head part 24. A second stop ring 26 is provided at the junction of the head 24 and the second stop ring 25. Since the diameter of the second stop ring 26 is larger than that of the head 24, when the head 24 of the impact chisel is struck upward against the bone column, the second stop ring 26 can abut against the crest of the alveolar ridge to prevent the maxillary sinus membrane from being torn by excessive lifting.

The using method of the invention is as follows:

in this embodiment, the thickness of the bone between the crest of the alveolar ridge and the floor of the maxillary sinus is known to be 5mm, and the length of the first stop ring 16 is selected to be 4.0 mm. The trephine is connected with a medical bone drill of a driving device through a drill rod 11, a drill bit is an annular cutting head, cutting sawteeth 13 are arranged on the drill bit, and the cutting sawteeth 13 cut the bone wall at the implant implantation site at the crest of the alveolar ridge of the missing tooth part. The first stop ring 16 which is shorter than the distance from the crest of the alveolar ridge to the maxillary sinus floor by 1mm is sleeved on the trephine drill bit 12 and is circularly cut to the bottom, so that a bone pillar is formed, and the 1mm cortical bone at the maxillary sinus floor is accurately kept from being cut off. Reuse maxillary sinus dashes 24 heads of top chisel and withstands the bone post, strike handle 21 tip gently with the hammer, it does not have the bone wall of cut through to send maxillary sinus top remaining 1 millimeter and takes place the green branch fracture, make whole bone post move up, bone post top and maxillary sinus membrane do not separate, and then the bone post is promoted with the membrane together, the maxillary sinus membrane can not be punctured, 3 to 6 millimeters upper jaw sinus parietal bone volume promote in going on, need not implant the bone meal again, reach autologous bone transplantation's effect, the success rate of operation has been improved.

The surgical instrument of the invention is exquisite, small and relatively perfect, the first stop ring 16 has different height specifications and is selectable, each maxillary sinus internal lifting tool box is provided with a plurality of first stop rings 16, the length of each maxillary sinus internal lifting tool box is increased by 1mm, and the specifications of the stop rings are as follows: 2.0mm, 3.0mm, 4.0mm, 4.5mm, 5.0mm, increased a 4.5mm between 4mm and the 5mm, make its accuracy higher, satisfy the accurate control to maxillary sinus floor drilling depth, realize that the difference level accurate control strikes in the lifting height, it is safe high-efficient, corresponding implant can directly be implanted simultaneously, it strikes in the back to save to strike now, prepare the step of implant degree of depth once more.

Example two

The structure of this embodiment is substantially the same as that of the first embodiment, and the difference is that: the rear part of the handle 21 is a holding part with a larger diameter, the front part of the handle 21 is bent, the end part is a hollow threaded pipe provided with internal threads, the connecting part 23 is a cylinder provided with external threads, and the working head 22 is in threaded connection with the handle 21 through the connecting part 23 and the threaded pipe. The spiro union is also for dismantling the connection, convenient washing and disinfection, and the spiro union connection is more firm moreover and improves the stability and the security of operation.

EXAMPLE III

As shown in fig. 5, the structure of the present embodiment is substantially the same as that of the first embodiment, and the difference is that: the head 24 is a cylinder provided with an external thread having a pitch of 0.5mm, and the second stop ring 26 is a stop nut fitted to the head 24. The distance from the second stop ring 26 to the end of the head part 24 is adjustable, the second stop ring 26 adjusts the ejection height of 0.5mm every time of rotating, and the controllability of the ejection operation is stronger.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.