CN219895971U - Working handle and maxillary sinus lifting tool - Google Patents

Abstract

The embodiment of the utility model discloses a working handle and a maxillary sinus lifting tool, which comprise: the handle main body is provided with a working part which is used for cutting bone tissues; the sensing element is arranged in the handle main body and is attached to the working part, and the sensing element is used for executing response action when the actual lifting distance of the working part is greater than the preset distance so as to prevent the working part from puncturing the sinus floor mucosa of the maxillary sinus. According to the working handle provided by the utility model, the induction element is arranged in the handle main body, and the response action is executed when the actual lifting distance of the working part is larger than the preset distance preset by an operator, so that the operator is reminded that the working part approaches to the sinus floor mucosa of the maxillary sinus, thereby preventing the working part from suddenly applying force to puncture the sinus floor mucosa of the maxillary sinus, and further reducing the risk of puncturing the sinus floor mucosa.

Description

Working handle and maxillary sinus lifting tool

Technical Field

The utility model relates to the technical field of oral medical instruments, in particular to a working handle and a maxillary sinus lifting tool.

Background

Dental implants have become the repair of choice for an increasing number of edentulous patients. However, the patient with missing teeth in the maxillary posterior teeth area often has insufficient residual bone mass due to the too low maxillary sinus position, severe alveolar bone absorption, atrophy and the like, so that the implant is difficult to implant, and if the implant is forcibly implanted, the implant is easy to penetrate into the maxillary sinus to cause complications such as infection, so that the existence of the maxillary sinus is a major obstacle for the implantation in the maxillary posterior teeth area. At present, a maxillary sinus membrane is lifted from the sinus floor in a maxillary sinus floor lifting mode, and then is lifted, and a bone grafting material is implanted between the sinus floor membrane and the sinus floor bone, so that the bone height is effectively increased, and the stability of dental implantation is met.

In the prior art, a doctor usually performs maxillary sinus lifting operation under blind view, when an osteotome cuts the sinus floor bone, whether the last layer of bone tissue is broken is generally judged according to the sense of falling air felt by the doctor, and whether the mucous membrane is damaged is difficult to find, so that the risk of cutting the sinus floor mucous membrane is high, and once the sinus floor mucous membrane is cut, the repair is difficult.

Therefore, how to reduce the risk of puncturing the sinus membrane becomes a technical problem to be solved by those skilled in the art.

Disclosure of Invention

Accordingly, the present utility model is directed to a working handle for reducing risk of puncturing sinus membrane.

Another object of the present utility model is to provide a maxillary sinus lifting tool having the above working handle.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a working handle for lifting a maxillary sinus, comprising:

the handle body is provided with a working part which is used for cutting bone tissues;

the sensing element is arranged in the handle main body, and is attached to the working part, and the sensing element is used for executing response action when the actual lifting distance of the working part is greater than a preset distance so as to prevent the working part from puncturing the sinus floor mucosa of the maxillary sinus.

Optionally, in the above working handle, the sensing element is a distance sensor, and the distance sensor includes an elastic element and a strain gauge for measuring deformation of the elastic element, and the elastic element cooperates with the strain gauge to detect an actual lifting distance of the working portion.

Optionally, in the above working handle, the first end of the sensing element is provided with a connecting portion, an end face of the handle body is provided with an installation groove matched with the connecting portion of the sensing element, the first end of the sensing element is chemically or mechanically connected with the handle body, and the second end of the sensing element is attached to the end face of the working portion.

Optionally, in the above working handle, a communication hole for passing through a tail wire of the sensing element is formed on a bottom wall of the mounting groove, and the tail wire of the sensing element is electrically connected with a control element disposed in the handle main body.

Optionally, in the working handle, the response action is to send out an alarm reminding for the sensing element; and/or the number of the groups of groups,

the response action is that the sensing element controls the working part through the control element so as to stop the working part from cutting.

Optionally, in the above working handle, the working portion includes a marker detachably connected to the handle body, the marker being for displaying a depth of an osteotome provided on the working portion into an alveolar bone.

Optionally, in the above working handle, a plurality of markers are provided on the outer side of the marker, and the markers are used for marking the depth of the osteotome into the alveolar bone.

Optionally, in the working handle, the marker is a groove circumferentially arranged along the identifier; and/or the number of the groups of groups,

the end face of the working part is provided with a chip storage groove for accommodating bone chips.

Optionally, in the working handle, the sensing element includes a first magnetic element, where the first magnetic element is configured to cooperate with a second magnetic element preset at the bottom of the maxillary sinus, and the first magnetic element and the second magnetic element are of the same polarity, so as to control an actual lifting distance of the working portion.

A maxillary sinus lifting tool comprising a working handle as claimed in any one of the preceding claims.

According to the working handle provided by the utility model, bone tissues are cut through the working part of the handle main body, the induction element is arranged in the handle main body, and when the actual lifting distance of the working part is larger than the preset distance preset by an operator, the response action is executed, and can be an alarm prompt or stop working of the working part, so that the working part of an operator is reminded to approach to the sinus mucosa of the maxillary sinus, and the working part can be prevented from suddenly applying force to cut through the sinus mucosa of the maxillary sinus.

Compared with the judgment of operators according to the falling feeling in the prior art, the working handle provided by the utility model has the advantages that the induction element is arranged in the handle main body, and the response action is executed when the actual lifting distance of the working part is larger than the preset distance preset by an operator, so that the working part of the operator is reminded to approach to the sinus floor mucosa of the maxillary sinus, thereby preventing the working part from suddenly applying force to puncture the sinus floor mucosa of the maxillary sinus, and further reducing the risk of puncturing the sinus floor mucosa.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of a working handle provided by an embodiment of the present utility model;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a front view of a handle body provided in an embodiment of the present utility model;

FIG. 4 is a section B-B of FIG. 3;

FIG. 5 is a front view of an inductive element according to an embodiment of the present utility model;

FIG. 6 is a cross-sectional view of C-C of FIG. 5;

FIG. 7 is a front view of a tag according to an embodiment of the present utility model;

fig. 8 is a sectional view D-D of fig. 7.

Wherein 100 is a working handle, 101 is a handle body, 1011 is a mounting groove, 1012 is a communication hole, 1013 is a receiving cavity, 102 is an induction element, 1021 is an elastic element, 1022 is a strain gauge, 1023 is a tail wire, 1024 is a connecting part, 103 is a marking piece, 1031 is a groove, 1032 is a chip storage groove, and 104 is a control element.

Detailed Description

The core of the utility model is to provide a working handle to reduce the risk of puncturing the sinus floor mucosa.

Another core of the present utility model is to provide a maxillary sinus lifting tool having the above working handle.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 and 2, an embodiment of the present utility model discloses a working handle 100 for lifting a maxillary sinus, comprising a handle body 101 and a sensing element 102. It should be noted that, in the patient with missing teeth in the maxillary posterior dental region, the residual bone amount is insufficient due to the too low maxillary sinus position, the serious absorption and atrophy of the alveolar bone, etc., so that the implant is difficult to implant, and if the implant is forcibly implanted, the implant easily penetrates into the maxillary sinus to cause complications such as infection, etc., so that the existence of the maxillary sinus is a major obstacle for the implantation in the maxillary posterior dental region. At present, a maxillary sinus membrane is lifted from the sinus floor in a maxillary sinus floor lifting mode, and then is lifted, and a bone grafting material is implanted between the sinus floor membrane and the sinus floor bone, so that the bone height is effectively increased, and the stability of dental implantation is met. In the prior art, a doctor usually performs a maxillary sinus lifting operation under blind view, when an osteotome cuts the sinus floor bone, whether the last layer of bone tissue is broken is generally judged according to the sense of falling air felt by the doctor, and whether the mucous membrane is damaged is difficult to find, so that the risk of cutting the sinus floor mucous membrane is high, and once the sinus floor mucous membrane is cut, the repair is difficult. According to the working handle 100 disclosed by the embodiment of the utility model, the induction element 102 is arranged in the handle main body 101, and the response action is executed when the actual lifting distance of the working part is larger than the preset distance preset by an operator, so that the working part of the operator is reminded to approach to the sinus floor mucosa of the maxillary sinus, thereby preventing the working part from suddenly applying force to break the sinus floor mucosa of the maxillary sinus, and further reducing the risk of breaking the sinus floor mucosa.

Therein, as shown in fig. 2, the handle body 101 is provided with a working portion to pierce bone tissue. Specifically, an osteotome is provided in the working portion, and the end of the handle body 101 is forced by an external tool to drill bone tissue. When the working part approaches the sinus membrane of the maxillary sinus, in order to prevent the working part from suddenly applying force to break the sinus membrane of the maxillary sinus, a sensing element 102 is provided in the handle body 101 to alert an operator that the working part will approach the sinus membrane of the maxillary sinus.

Further, as shown in fig. 2, the sensing element 102 is attached to the working portion, and when the actual lifting distance of the working portion is greater than the preset distance, the sensing element 102 performs a response action to prevent the working portion from piercing the sinus membrane of the maxillary sinus. Specifically, in this embodiment, the preset distance may be 3mm to 5mm, and when the actual lifting distance of the working portion is greater than the preset distance, the sensing element 102 may perform the same response action or perform different response actions, so as to remind the operator that the working portion will approach the sinus floor mucosa of the maxillary sinus, thereby preventing the working portion from suddenly applying force to break through the sinus floor mucosa of the maxillary sinus. The response action may send an alarm to the sensing element 102 to alert the operator that the working part will approach the sinus floor mucosa of the maxillary sinus. And/or the response may be that the sensing element 102 controls the working portion through the control element 104 so that the working portion stops cutting. It should be noted that, the preset distance may be a range value in the above embodiment, or may be a constant value, and may be set according to an actual operation situation, and meanwhile, the preset distance is a value or a range that does not puncture the sinus floor mucosa and is located in a controllable range, so that the working handle 100 can make a corresponding response action, thereby avoiding puncturing the sinus floor mucosa of the maxillary sinus.

In a specific embodiment, when the operator uses the working handle to perform the cutting process, and the actual lifting distance of the working portion is greater than the minimum value of the preset distances, that is, 3mm in the embodiment, the sensing element 102 sends out an audible and visual alarm to remind the operator that the working portion will approach the sinus floor mucosa of the maxillary sinus; when the operator continues to lift until the actual lifting distance of the working portion is greater than the maximum value of the preset distances, i.e. 5mm in this embodiment, the sensing element 102 may take an emergency measure, and the control element 104 controls the working portion, so that the working portion stops cutting, and thus the sinus floor mucosa is prevented from being cut through.

Of course, the sensing element 102 may also perform the same response action, in another specific embodiment, when the actual lifting distance of the working portion is greater than the minimum value of the preset distances, that is, 3mm in the present embodiment, the sensing element 102 sends out an audible and visual alarm with a longer interval time, so as to remind the operator that the working portion will approach the sinus membrane of the maxillary sinus; when the operator continues to lift, until the actual lifting distance of the working portion is greater than the maximum value in the preset distance, namely, 5mm in the embodiment, the sensing element 102 can send out an audible and visual alarm with shorter interval time and rapidness, so that the operator is reminded of the working portion to be closer to the sinus floor mucosa of the maxillary sinus again, and further the operator is prevented from applying excessive force to break the sinus floor mucosa. It should be noted that, when the actual lifting distance of the working portion is greater than the minimum value of the preset distances, the sensing element 102 may also take temporary emergency measures, and control the working portion through the control element 104, so that the working portion stops cutting, so as to remind the operator that the working portion will approach the sinus floor mucosa of the maxillary sinus; when the actual lifting distance of the working part is greater than the maximum value in the preset distance, the sensing element 102 can control the working part through the control element 104 again, so that the working part stops cutting, the operator is reminded of the working part to be closer to the sinus floor mucosa of the maxillary sinus again, the situation that the operator applies excessive force to break the sinus floor mucosa is avoided, and the risk that the operator breaks the sinus floor mucosa is reduced.

It should be further noted that, when the preset distance is a certain value, the two response actions in the above embodiment may be performed simultaneously, or any one of them may be performed, so as to remind the operator that the working portion approaches the sinus mucosa of the maxillary sinus. The specific implementation of the preset distance is similar to the above embodiment, and will not be repeated herein. Moreover, the mode that the sensing element 102 controls the working part to stop cutting through the control element 104 can be that the sensing element 102 controls the spring connected with the osteotome on the working part to reset and retract rapidly through the control element 104 so as to drive the osteotome to retract, so that the working part loses the cutting function, the purpose of reminding an operator is achieved, and meanwhile, the problem that the operator applies excessive force to cut through the sinus floor mucosa can be avoided under the condition that the osteotome is close to the sinus floor mucosa.

According to the working handle 100 provided by the utility model, bone tissues are pierced through the working part of the handle main body 101, meanwhile, the induction element 102 is arranged in the handle main body 101, and when the actual lifting distance of the working part is larger than the preset distance preset by an operator, a response action is performed, wherein the response action can be an alarm reminding or stopping working of the working part so as to remind the operator that the working part approaches to the sinus floor mucosa of the maxillary sinus, so that the working part can be prevented from suddenly applying force to pierce the sinus floor mucosa of the maxillary sinus.

Compared with the judgment of operators according to the sense of falling, in the working handle 100 provided by the utility model, the induction element 102 is arranged in the handle main body 101, and the response action is executed when the actual lifting distance of the working part is larger than the preset distance preset by the operator, so that the operator is reminded that the working part approaches to the sinus floor mucosa of the maxillary sinus, thereby preventing the working part from suddenly applying force to puncture the sinus floor mucosa of the maxillary sinus, and further reducing the risk of puncturing the sinus floor mucosa.

As shown in fig. 5 and 6, in one embodiment, the sensing element 102 employs a distance sensor. The distance sensor comprises an elastic element 1021 and a strain gauge 1022 for measuring deformation of the elastic element 1021, wherein the elastic element 1021 is matched with the strain gauge 1022 to detect the actual lifting distance of the working part. Specifically, the strain gauge 1022 is disposed at an end of the elastic element 1021, and the strain gauge 1022 is attached to an end of the working portion, so that the elastic deformation of the elastic element 1021 is obtained by the change of the resistance of the strain gauge 1022, and the actual lifting distance of the working portion is obtained. The elastic element 1021 may be a spoke type, beam type, column type, or the like. It should be noted that the specific working principle of the distance sensor is not a core utility model point of the present utility model, and is not described herein.

In another embodiment, the sensing element 102 includes a first magnetic element, and the first magnetic element is matched with a second magnetic element preset at the bottom of the maxillary sinus in advance, wherein the first magnetic element and the second magnetic element have the same polarity so as to control the actual lifting distance of the working part. Specifically, when the working part is close to the maxillary sinus floor, as the first magnetic part and the second magnetic part are of the same polarity, repulsive force is generated to prevent the working part from being lifted continuously, and along with the gradual approach of the distance between the working part and the maxillary sinus floor, the repulsive force is increased, so that the effect of buffering can be achieved, and the finally broken instant pressure of the bone wall is prevented from being excessively large to break the sinus floor mucous membrane. Meanwhile, the first magnetic piece can be matched with a distance sensor to convert the variable quantity of repulsive force into actual lifting distance, so that the operator is reminded that the working part of the operator approaches to the sinus floor mucosa of the maxillary sinus. Of course, the first magnetic part can be used independently in combination with the second magnetic part, the variation of the repulsive force is directly displayed through the digital display module, and an operator can judge the distance between the osteotome on the working part and the maxillary sinus floor according to the variation of the repulsive force, so that the risk of puncturing the sinus floor mucosa is reduced.

Further, as shown in fig. 4 and 6, a connecting portion 1024 is provided at a first end of the sensing element 102, a mounting groove 1011 matching with the connecting portion 1024 of the sensing element 102 is provided on an end surface of the handle body 101, the first end of the sensing element 102 is chemically or mechanically connected to the handle body 101, and a second end of the sensing element 102 is attached to an end surface of the working portion. Specifically, the connection portion 1024 of the sensing element 102 may be chemically connected to the mounting slot 1011 of the handle body 101 by adhesion, or mechanically connected by screw connection, and the mounting slot 1011 provides a supporting function for the sensing element 102. The second end of the sensing element 102 is attached to the inner wall of the end portion of the working portion, thereby improving the detection accuracy of the sensing element 102.

Further, as shown in fig. 4 and 5, a communication hole 1012 is formed in the bottom wall of the mounting groove 1011 to allow the tail wire 1023 of the sensor element 102 to pass therethrough, and the tail wire 1023 of the sensor element 102 passes through the communication hole 1012 and is electrically connected to the control element 104 provided in the handle body 101. Specifically, as shown in fig. 4, the handle body 101 has a receiving chamber 1013 therein, the control member 104 is located in the receiving chamber 1013, and the communication hole 1012 communicates with the receiving chamber 1013 so that the tail 1023 of the sensing member 102 passes out of the communication hole 1012 and is electrically connected to the control member 104. The control element 104 may use a voice control and digital display module to remind the operator of relevant information about the actual lifting height of the working portion in real time.

Further, as shown in fig. 7 and 8, the working portion includes a flag 103. Wherein, can dismantle the connection between the sign 103 and the handle main part 101 to make things convenient for the sign 103 to dismantle the back and disinfect it, and the sign 103 is used for showing the depth that the bone chisel that sets up on the working portion gets into the alveolar bone. Specifically, as shown in fig. 3, a threaded portion is provided on the handle body 101, and is screwed with the identifier 103. Of course, the identifier 103 may be connected to the handle body 101 by a detachable connection such as a snap connection. Meanwhile, the outside of the marking member 103 is provided with a plurality of markers for marking the depth of the osteotome into the alveolar bone. The marker may be a scale mark provided on the outer side of the marker 103 or a warning line having a warning effect, thereby indicating the depth of the osteotome on the operator's work portion into the alveolar bone on the outer side. In this embodiment, the marker is a groove 1031 disposed circumferentially along the identifier 103. And/or, the end face of the working part is provided with a chip storage groove 1032 for containing bone chips so as to prevent the chips of the cut bone tissues from falling into the oral cavity, so that the bone chips are not easy to clean.

The embodiment of the utility model also discloses a maxillary sinus lifting tool, which comprises a working handle, wherein the working handle is the working handle 100 disclosed in the embodiment, so that the working handle has all the technical effects of the working handle 100, and the working handle is not repeated herein. It should be noted that other accessories, such as an external endoscope, may be added to the working handle 100, and it is within the scope of the present utility model to use the working handle 100 disclosed in the embodiment of the present utility model.

The terms first and second and the like in the description and in the claims and in the above-described figures are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to the listed steps or elements but may include steps or elements not expressly listed.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A working handle for lifting a maxillary sinus, comprising:

a handle body (101) provided with a working portion for cutting bone tissue;

the sensing element (102) is arranged in the handle main body (101), the sensing element (102) is attached to the working portion, and the sensing element (102) is used for executing response action when the actual lifting distance of the working portion is greater than the preset distance, so that the working portion is prevented from piercing the sinus floor mucosa of the maxillary sinus.

2. The working handle according to claim 1, characterized in that the sensing element (102) is a distance sensor and that the distance sensor comprises an elastic element (1021) and a strain gauge (1022) for measuring the deformation of the elastic element (1021), the elastic element (1021) cooperating with the strain gauge (1022) for detecting the actual lifting distance of the working part.

3. The working handle according to claim 2, characterized in that the first end of the sensing element (102) is provided with a connecting portion (1024), the end surface of the handle body (101) is provided with a mounting groove (1011) matched with the connecting portion (1024) of the sensing element (102), the first end of the sensing element (102) is chemically or mechanically connected with the handle body (101), and the second end of the sensing element (102) is attached to the end surface of the working portion.

4. A working handle according to claim 3, characterized in that the bottom wall of the mounting slot (1011) is provided with a communication hole (1012) for passing through the tail wire (1023) of the sensing element (102), the tail wire (1023) of the sensing element (102) being adapted to be electrically connected with a control element (104) arranged in the handle body (101).

5. The working handle according to claim 4, wherein the responsive action is an alarm alert issued by the sensing element (102); and/or the number of the groups of groups,

the response action is that the sensing element (102) controls the working part through the control element (104) so as to stop the working part from cutting.

6. The working handle according to claim 1, characterized in that the working part comprises an identification element (103), the identification element (103) being detachably connected to the handle body (101), the identification element (103) being adapted to show the depth of an osteotome arranged on the working part into an alveolar bone.

7. The working handle according to claim 6, characterized in that the outside of the identification member (103) is provided with a plurality of markers for identifying the depth of the osteotome into the alveolar bone.

8. The working handle according to claim 7, characterized in that the marker is a groove (1031) arranged circumferentially along the marker (103); and/or the number of the groups of groups,

a chip storage groove (1032) for containing bone chips is arranged on the end face of the working part.

9. The working handle according to claim 1, characterized in that the inductive element (102) comprises a first magnetic element for cooperation with a second magnetic element preset at the maxillary sinus floor, and the first magnetic element and the second magnetic element are of the same polarity for controlling the actual lifting distance of the working part.

10. A maxillary sinus lifting tool comprising a working handle, characterized in that the working handle is a working handle (100) according to any one of claims 1-9.