Ultrasonic osteotome system

Abstract

The invention discloses an ultrasonic osteotome system which comprises a shell, an ultrasonic transducer, a tool bit and a temperature sensor. A first extension channel and a second extension channel which are communicated with each other are respectively arranged in the ultrasonic transducer and the cutter head, and the two ends of the first extension channel in the length direction of the shell are communicated; the second extension channel is through towards one end of the ultrasonic transducer in the length direction of the shell; the connecting part of the temperature sensor is connected with the shell, the extending part of the temperature sensor penetrates through the first extending channel and the second extending channel, and the detecting part of the temperature sensor is located in the second extending channel. The temperature sensor is additionally arranged in the ultrasonic osteotome system, the temperature of the osteotome head is measured through the detection part, and the measurement precision and the operation safety are improved. In addition, the temperature sensor is arranged in the ultrasonic transducer and the scalpel head in a penetrating mode, the temperature sensor can be protected, interference of the temperature sensor on use of the ultrasonic osteotome system can be prevented, and the operation safety is further improved.

Description

Technical Field

[0001] The present invention relates to the field of medical instruments, and in particular to an ultrasonic osteotome system. Background Art

[0002] As a new type of bone cutting system, the ultrasonic bone scalpel system is mostly used in operations such as laminectomy (LAMT) and spinal canal reconstruction (LAMP), and is used to treat diseases such as spinal cord tumor (SCT). Compared with traditional osteotomy instruments, the ultrasonic bone scalpel system has the advantages of high bone cutting efficiency, no cutting of soft tissue, and reduced damage to the dura mater and nerve roots, so it is widely used in clinical practice.

[0003] The working principle of the ultrasonic bone scalpel system is to convert electrical energy into mechanical energy, which will generate high heat during use. Therefore, the blade and handle must be cooled during use to prevent burns to the contact surface of the target tissue caused by overheating of the blade, and to prevent heat damage to the handle.

[0004] Studies have shown that the temperature of the ultrasonic bone scalpel system during operation is between 55.5°C and 65.5°C, but the critical temperature for nerve thermal damage is 43°C. Exceeding the critical temperature will cause thermal damage to the nerve. In the prior art, in addition to controlling the temperature of the ultrasonic bone scalpel system by cooling, it is basically based on the doctor's experience to determine whether the temperature of the ultrasonic bone scalpel system is within the appropriate range. However, the judgment accuracy of this judgment method is low, which is prone to errors and reduces the safety of the operation. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an ultrasonic bone knife system to overcome the defects of low judgment accuracy and low surgical safety in the prior art method of relying on the doctor's experience to judge the temperature of the ultrasonic bone knife system.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] An ultrasonic bone knife system comprises a housing, an ultrasonic transducer, a knife head and a temperature sensor;

[0008] The shell is a hollow structure, the ultrasonic transducer is accommodated inside the shell, one end of the cutter head is accommodated inside the shell and connected to the ultrasonic transducer, and the other end of the cutter head extends to the outside of the shell;

[0009] A first extension channel is provided inside the ultrasonic transducer, and the first extension channel passes through both ends of the shell in the length direction; a second extension channel is provided inside the cutter head, and the second extension channel passes through one end of the ultrasonic transducer in the length direction of the shell, and the first extension channel is connected to the second extension channel;

[0010] The temperature sensor includes a connecting portion, an extending portion and a detecting portion, the connecting portion is connected to an end of the housing away from the cutter head, the extending portion is connected to the connecting portion and passes through the first extension channel and the second extension channel, and the detecting portion is connected to the extending portion and is located in the second extension channel.

[0011] In this solution, a temperature sensor is added to the ultrasonic bone knife system, and the temperature at the blade head is measured through the detection part of the temperature sensor, thereby improving the measurement accuracy, reducing the measurement error, and improving the safety of the operation. The temperature sensor is installed inside the ultrasonic transducer and the blade head, which can protect the temperature sensor on the one hand, and prevent the temperature sensor from interfering with the use of the ultrasonic bone knife system on the other hand, further improving the safety of the operation.

[0012] Preferably, the second extension channel extends from one end away from the ultrasonic transducer to a portion of the cutter head exposed from the housing, and the second extension channel is closed or connected in the length direction of the housing from one end away from the ultrasonic transducer.

[0013] In this solution, the ultrasonic bone knife system generally cuts the target area of ​​the target object through the end of the blade. The above-mentioned setting enables the second extension channel to extend close to the end of the blade, so that the temperature sensor can measure the temperature close to the end of the blade, further improving the measurement accuracy and the safety of the operation. The second extension channel is closed at one end away from the ultrasonic transducer in the length direction of the shell, which can prevent the temperature sensor from being exposed to the external environment and reduce damage to the temperature sensor. The second extension channel is connected at one end away from the ultrasonic transducer in the length direction of the shell, which can avoid the possibility of the temperature sensor colliding with the closed end of the second extension channel during installation, reducing the installation accuracy requirements.

[0014] Preferably, the ultrasonic osteotome system meets one or more of the following conditions:

[0015] a. The extension portion and the side wall surface of the first extension channel have a first gap in the radial direction of the first extension channel, and the extension portion and the side wall surface of the second extension channel have a second gap in the radial direction of the second extension channel;

[0016] b. The first extension channel and the second extension channel are coaxial.

[0017] In this solution, there is a gap between the extension part of the temperature sensor and the side wall surface of the first extension channel and the side wall surface of the second extension channel, that is, the radial dimensions of the first extension channel and the second extension channel are both larger than the radial dimensions of the extension part, which reduces the friction between the temperature sensor and the side wall surface of the first extension channel and the side wall surface of the second extension channel during installation, reduces the difficulty of installation and the loss of the temperature sensor. The first extension channel and the second extension channel are coaxially arranged, which facilitates the installation of the temperature sensor while avoiding the need to design the radial dimensions of the first extension channel or the second extension channel to be too large, reduces the occupied space, increases the installation space of the ultrasonic transducer or other components in the blade head, and reduces the overall size of the ultrasonic bone knife system.

[0018] Preferably, the ultrasonic bone knife system also includes an external device, which is arranged at an end of the shell away from the knife head and is detachably connected to the shell, and the connecting part of the temperature sensor is connected to the external device.

[0019] In this solution, the above arrangement can realize a detachable connection between the temperature sensor and the housing, thereby facilitating replacement or maintenance of the temperature sensor.

[0020] Preferably, one of the external device and the housing includes a first protrusion, and the other includes a first groove, the first protrusion is accommodated in the first groove and is detachably connected to the first groove, and the first protrusion has a first through hole for the temperature sensor to pass through.

[0021] In this solution, a specific connection method between an external device and a housing is provided, and a detachable connection between the external device and the housing is achieved through the cooperation of a first protrusion and a first groove, which has a simple structure, low cost and is easy to install.

[0022] Preferably, one of the outer circumferential surface of the first protrusion and the inner circumferential surface of the first groove is provided with a second protrusion, and the other is provided with a second groove;

[0023] The second groove comprises a first extension section, a second extension section and a third extension section which are connected in sequence, the first extension section and the third extension section both extend along the length direction of the shell, and the second extension section extends along the circumference direction of the shell;

[0024] One end of the first extension segment passes through the end surface of the first protrusion or the first groove, the second extension segment is connected to the other end of the first extension segment, and the third extension segment is connected to an end of the second extension segment away from the first extension segment and does not pass through the end surface of the first protrusion or the first groove, so that the first extension segment, the second extension segment and the third extension segment form a J-shaped structure.

[0025] In this solution, the third extension section can limit the circumferential movement of the second protrusion along the outer shell, thereby preventing the external device and the outer shell from rotating relative to each other along the circumferential direction of the outer shell, thereby ensuring the stability of the connection between the two.

[0026] Preferably, the external device is formed with the first protrusion, and the second groove is arranged on the outer circumference of the first protrusion; the outer shell is formed with the first groove, and the second protrusion is arranged on the inner circumference of the first groove.

[0027] In this solution, a specific arrangement scheme of a first protrusion, a first groove, a second protrusion and a second groove is provided.

[0028] Preferably, the external device further comprises an abutment portion, the abutment portion is connected to an end of the first protrusion away from the housing, and the diameter of the abutment portion is greater than the diameter of the first protrusion;

[0029] The external connection device further comprises an elastic washer, which is sleeved on the first protrusion, and the two ends of the elastic washer in the length direction of the housing respectively abut against the abutment portion and the groove wall of the first groove.

[0030] In this solution, the elastic gasket can apply a force to the second protrusion along the length direction of the shell toward the direction away from the second extension section to limit the second protrusion within the third extension section, thereby preventing the external device and the shell from generating relative rotation along the circumferential direction of the shell, thereby ensuring the stability of the connection between the two.

[0031] Preferably, the external device comprises a temperature sensor connecting portion, the temperature sensor connecting portion comprises two third protrusions, the third protrusion protrudes from one end of the abutting portion away from the first protrusion in a direction away from the abutting portion, the connecting portion of the temperature sensor is located between the two third protrusions, and the connecting portion is detachably connected to the two third protrusions;

[0032] The abutting portion is provided with a second through hole for the temperature sensor to pass through, and the second through hole is communicated with the first through hole.

[0033] In the present solution, a specific connection method between an external device and a temperature sensor is provided. The above-mentioned setting structure is simple and easy to process. In addition, both ends of the connection part of the temperature sensor are respectively connected to the third protrusion, and the connection strength and stability are higher.

[0034] Preferably, the housing comprises an ultrasonic transducer connecting portion and a cutter head connecting portion, and the ultrasonic transducer connecting portion is connected to the cutter head connecting portion.

[0035] In this solution, the above arrangement enables the ultrasonic transducer connecting portion and the blade connecting portion to be processed separately and then assembled, thereby reducing the overall processing difficulty and processing cost of the housing.

[0036] The positive and progressive effect of the present invention is that a temperature sensor is added to the ultrasonic bone knife system, and the temperature at the blade head is measured through the detection part of the temperature sensor, thereby improving the measurement accuracy, reducing the measurement error, and improving the safety of the operation. The temperature sensor is installed inside the ultrasonic transducer and the blade head, which can protect the temperature sensor on the one hand, and prevent the temperature sensor from interfering with the use of the ultrasonic bone knife system on the other hand, further improving the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Schematic diagram of the external structure of an ultrasonic osteotome system according to an embodiment of the present invention.

[0038] Figure 2 Schematic diagram of the internal structure of an ultrasonic osteotome system according to an embodiment of the present invention.

[0039] Figure 3 The figure is a schematic diagram of the external structure of the connection between the ultrasonic transducer and the cutter head according to one embodiment of the present invention.

[0040] Figure 4 The figure is a schematic diagram of the internal structure of the connection between the ultrasonic transducer and the cutter head according to one embodiment of the present invention.

[0041] Figure 5 The figure is a schematic structural diagram of the connection between a temperature sensor and an external device according to an embodiment of the present invention.

[0042] Figure 6 FIG. 4 is a schematic diagram of a three-dimensional structure of an external device according to an embodiment of the present invention.

[0043] Figure 7 Another structural schematic diagram of the connection between a temperature sensor and an external device according to an embodiment of the present invention.

[0044] Figure 8 The figure is a schematic diagram of the internal structure of the temperature sensor and the external device connected to each other according to an embodiment of the present invention.

[0045] Fig. 9 Schematic diagram of the internal structure of the ultrasonic transducer connecting part according to an embodiment of the present invention.

[0046] Description of reference numerals:

[0047] Shell 1

[0048] Ultrasonic transducer connection part 11

[0049] Cutting head connection part 12

[0050] Cooling channel 121

[0051] Ultrasonic transducer 2

[0052] The first extension channel 21

[0053] Segment 3

[0054] The second extension channel 31

[0055] Temperature sensor 4

[0056] Connection part 41

[0057] Extension 42

[0058] Detection unit 43

[0059] External device 5

[0060] The first protrusion 51

[0061] First through hole 511

[0062] First groove 52

[0063] Second protrusion 53

[0064] Second groove 54

[0065] The first extension section 541

[0066] The second extension section 542

[0067] The third extension section 543

[0068] Contact part 55

[0069] The second through hole 551

[0070] Elastic washer 56

[0071] Temperature sensor connection portion 57

[0072] The third protrusion 571

[0073] First gap 61

[0074] Second gap 62 DETAILED DESCRIPTION

[0075] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0076] like Figure 1 and Figure 2As shown, this embodiment provides an ultrasonic bone knife system for cutting or grinding a target area of ​​a target object during surgery. The ultrasonic bone knife system includes a housing 1, an ultrasonic transducer 2, a knife head 3, a temperature sensor 4 and an external device 5.

[0077] like Figure 2 and Figure 3 As shown, the housing 1 is a hollow structure, the ultrasonic transducer 2 is accommodated inside the housing 1 and connected to the housing 1, one end of the cutter head 3 is accommodated inside the housing 1 and connected to the ultrasonic transducer 2, and the other end of the cutter head 3 extends to the outside of the housing 1, and is used to cut or grind the target area of ​​the target object. The ultrasonic transducer 2 can convert electrical energy into mechanical energy, and transfer the converted mechanical energy to the cutter head 3, so that the part of the cutter head 3 exposed from the housing 1 can perform a cutting operation. The specific connection method between the ultrasonic transducer 2 and the cutter head 3 and how the ultrasonic transducer 2 transfers mechanical energy to the cutter head 3 belong to the prior art and will not be repeated here.

[0078] like Figure 2 As shown, the housing 1 includes an ultrasonic transducer connection portion 11 and a cutter head connection portion 12 in sequence along the length direction of the housing 1. The ultrasonic transducer 2 is basically accommodated in the ultrasonic transducer connection portion 11, and the cutter head 3 is basically accommodated in the cutter head connection portion 12. The ultrasonic transducer connection portion 11 and the cutter head connection portion 12 are both processed and formed separately as independent structures, and then connected into a whole after the forming is completed, so as to reduce the processing difficulty and processing cost of the housing 1 as a whole. The cutter head connection portion 12 is also provided with a cooling channel 121, which is used for the flow of coolant to cool the cutter head 3, avoid the temperature of the cutter head 3 being too high, and improve the safety of the operation.

[0079] The ultrasonic transducer connection part 11 and the cutter head connection part 12 may be detachably connected by means of snap connection, threaded connection, etc., or may be fixedly connected by means of welding, etc., and the specific design may be based on actual needs.

[0080] In other alternative embodiments, the ultrasonic transducer connecting portion 11 and the blade connecting portion 12 may also be processed and formed together as a whole, that is, the housing 1 is an integrally formed structure, saving the subsequent process of connecting the ultrasonic transducer connecting portion 11 and the blade connecting portion 12.

[0081] like Figure 2 and Figure 4As shown, a first extension channel 21 is provided inside the ultrasonic transducer 2, and the first extension channel 21 extends along the length direction of the housing 1 and is connected at both ends in the length direction of the housing 1. A second extension channel 31 is provided inside the cutter head 3, and the second extension channel 31 extends along the length direction of the housing 1 and extends from one end of the second extension channel 31 away from the ultrasonic transducer 2 to the portion of the cutter head 3 exposed from the housing 1, and the second extension channel 31 is connected at both ends in the length direction of the housing 1. One end of the first extension channel 21 in the length direction of the housing 1 facing the cutter head 3 is connected to one end of the second extension channel 31 in the length direction of the housing 1 facing the ultrasonic transducer 2.

[0082] like Figure 2 and Figure 5 As shown, the temperature sensor 4 includes a connecting portion 41, an extension portion 42 and a detection portion 43. The connecting portion 41 and the detection portion 43 are respectively connected to the two ends of the extension portion 42 in the length direction of the shell 1. The connecting portion 41 is detachably connected to the end of the shell 1 away from the cutter head 3 through an external device 5. The extension portion 42 is inserted into the first extension channel 21 and the second extension channel 31, and the detection portion 43 is located in the second extension channel 31.

[0083] Specifically, Figure 2 As shown, the radial dimensions of the first extension channel 21 and the second extension channel 31 are both larger than the radial dimensions of the extension portion 42, the side walls of the extension portion 42 and the first extension channel 21 have a first gap 61 in the radial direction of the first extension channel 21, and the side walls of the extension portion 42 and the second extension channel 31 have a second gap 62 in the radial direction of the second extension channel 31, thereby reducing the friction between the temperature sensor 4 and the side walls of the first extension channel 21 and the second extension channel 31 during installation, thereby reducing the difficulty of installation and the loss of the temperature sensor 4.

[0084] Furthermore, if Figure 5 As shown, the first extension channel 21 and the second extension channel 31 are coaxially arranged, which facilitates the installation of the temperature sensor 4 while avoiding the need to design the radial dimension of the first extension channel 21 or the second extension channel 31 to be too large, thereby reducing the occupied space, increasing the installation space of the ultrasonic transducer 2 or other components in the blade head 3, and reducing the overall size of the ultrasonic bone knife system to facilitate the doctor's operation.

[0085] In other alternative embodiments, the connection portion 41 of the temperature sensor 4 may also be directly connected to the housing 1. The connection between the temperature sensor 4 and the housing 1 may be either a detachable connection or a fixed connection, which may be specifically designed according to actual needs. The detachable connection method is used in this embodiment to facilitate the later replacement or maintenance of the temperature sensor 4, and the temperature sensor 4 of a suitable size may also be adjusted according to the length of the ultrasonic transducer 2 and the cutter head 3, so that the detection portion 43 of the temperature sensor 4 can be closer to the end of the cutter head 3 away from the ultrasonic transducer 2.

[0086] In this embodiment, a temperature sensor 4 is added to the ultrasonic bone knife system, and the temperature at the blade head 3 is measured by the detection part 43 of the temperature sensor 4, thereby improving the measurement accuracy, reducing the measurement error, and improving the safety of the operation. The temperature sensor 4 is arranged inside the ultrasonic transducer 2 and the blade head 3, which can protect the temperature sensor 4 on the one hand, and prevent the temperature sensor 4 from interfering with the use of the ultrasonic bone knife system on the other hand, thereby further improving the safety of the operation.

[0087] Since the ultrasonic bone knife system generally cuts the target area of ​​the target object through the end of the blade head 3, the second extension channel 31 extends from the end away from the ultrasonic transducer 2 to the portion of the blade head 3 exposed from the housing 1, so that the second extension channel 31 can extend close to the end of the blade head 3, thereby enabling the temperature sensor 4 to measure the temperature close to the end of the blade head 3, further improving the measurement accuracy and safety of the operation. The second extension channel 31 is through the end away from the ultrasonic transducer 2 in the length direction of the housing 1, which can avoid the possibility of the temperature sensor 4 colliding with the closed end of the second extension channel 31 during installation, and reduce the installation accuracy requirements.

[0088] In other alternative embodiments, the end of the second extension channel 31 away from the ultrasonic transducer 2 may not extend to the portion of the cutter head 3 exposed outside the housing 1 .

[0089] In other alternative embodiments, the end of the second extension channel 31 away from the ultrasonic transducer 2 in the length direction of the housing 1 may also be closed to prevent the temperature sensor 4 from being exposed to the external environment and reduce damage to the temperature sensor 4 .

[0090] like Figure 1 , Figure 2 and Figure 5 As shown, the external device 5 is arranged outside the shell 1 and located at the end of the shell 1 away from the cutter head 3. The external device 5 is detachably connected to the shell 1, and the connecting portion 41 of the temperature sensor 4 is connected to the external device 5, thereby realizing the detachable connection between the temperature sensor 4 and the shell 1.

[0091] In other alternative implementations, the external device 5 may also be fixedly connected to the housing 1 by welding or the like.

[0092] like Figure 6-Figure 9 As shown, the external device 5 includes a first protrusion 51, and the housing 1 includes a first groove 52. The first protrusion 51 is accommodated in the first groove 52 and is detachably connected to the first groove 52. The detachable connection between the external device 5 and the housing 1 is achieved through the cooperation of the first protrusion 51 and the first groove 52. The structure is simple, the cost is low, and it is easy to install. The first protrusion 51 has a first through hole 511 for the temperature sensor 4 to pass through. The first through hole 511 is through at both ends of the length direction of the housing 1, so that the extension portion 42 of the temperature sensor 4 passes through the first protrusion 51 and extends into the first extension channel 21 and the second extension channel 31.

[0093] Specifically, Figure 6-Figure 9 As shown, the outer circumference of the first protrusion 51 is provided with a second groove 54, and the inner circumference of the first groove 52 is provided with a second protrusion 53. The second groove 54 includes a first extension section 541, a second extension section 542 and a third extension section 543 which are connected in sequence. The first extension section 541 and the third extension section 543 both extend along the length direction of the housing 1, and the second extension section 542 extends along the circumference of the housing 1. The first extension section 541 passes through the end surface of the first protrusion 51 in the length direction of the housing 1 facing the cutter head 3, the second extension section 542 is connected to the end of the first extension section 541 in the length direction of the housing 1 away from the cutter head 3, the third extension section 543 is connected to the end of the second extension section 542 away from the first extension section 541 and extends in the direction of the cutter head 3, and the third extension section 543 does not pass through the end surface of the first protrusion 51 in the length direction of the housing 1, so that the first extension section 541, the second extension section 542 and the third extension section 543 form a J-shaped structure. The third extension section 543 can limit the second protrusion 53 from moving along the circumferential direction of the housing 1 , thereby preventing the external device 5 and the housing 1 from rotating relative to each other along the circumferential direction of the housing 1 , thereby ensuring the stability of the connection between the two.

[0094] Furthermore, if Figure 6-Figure 9 As shown, the external device 5 further includes an abutment portion 55 and an elastic washer 56. The abutment portion 55 is connected to one end of the first protrusion 51 away from the housing 1, and the diameter of the abutment portion 55 is greater than the diameter of the first protrusion 51. The elastic washer 56 is sleeved on the first protrusion 51, and the two ends of the elastic washer 56 in the length direction of the housing 1 abut against the abutment portion 55 and the groove wall of the first groove 52 respectively. The elastic washer 56 can apply a force to the second protrusion 53 in the direction away from the second extension section 542 along the length direction of the housing 1, so as to limit the second protrusion 53 in the third extension section 543, thereby preventing the external device 5 and the housing 1 from rotating relative to each other along the circumferential direction of the housing 1, thereby ensuring the stability of the connection between the two.

[0095] The elastic washer 56 in this embodiment is a spring washer. In other alternative implementations, the elastic washer 56 may also be an elastic component such as a rubber washer that can achieve the above-mentioned function.

[0096] In other alternative embodiments, the second protrusion 53 may be arranged on the outer circumference of the first protrusion 51, and the second groove 54 may be arranged on the inner circumference of the first groove 52. In this state, the end of the first extension section 541 in the length direction of the housing 1 facing the cutter head 3 passes through the end surface of the first groove 52 in the length direction of the housing 1, and the third extension section 543 does not pass through the end surface of the first groove 52 in the length direction of the housing 1. The end surface of the first groove 52 in the length direction of the housing 1 refers to the end surface of the groove wall of the first groove 52 in the length direction of the housing 1.

[0097] In other alternative embodiments, the first protrusion 51 may be formed on the housing 1 , and the first groove 52 may be formed on the external device 5 .

[0098] like Figure 5 As shown, the external device 5 also includes a temperature sensor connecting portion 57, and the temperature sensor connecting portion 57 includes two third protrusions 571. The third protrusions 571 protrude from one end of the abutting portion 55 away from the first protrusion 51 in a direction away from the abutting portion 55. The connecting portion 41 of the temperature sensor 4 is located between the two third protrusions 571. The connecting portion 41 and the two third protrusions 571 are detachably connected, with a simple structure, easy processing, and higher connection strength and stability. Specifically, the temperature sensor 4 and the third protrusions 571 can be detachably connected by pin connection, bolt connection, etc.

[0099] In other alternative implementations, the temperature sensor 4 may also be fixedly connected to the external device 5 by welding or the like. The detachable connection method is adopted in this embodiment to facilitate the replacement and maintenance of the temperature sensor 4 at a later stage.

[0100] like Figure 8 As shown, a second through hole 551 is provided on the abutting portion 55 for the temperature sensor 4 to pass through. The second through hole 551 passes through both ends of the shell 1 in the length direction, and the second through hole 551 is connected to the first through hole 511, so that the extension portion 42 of the temperature sensor 4 can pass through the abutting portion 55 and the first protrusion 51 of the external device 5 to extend into the first extension channel 21 and the second extension channel 31.

[0101] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings of the devices or components, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0102] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An ultrasonic osteotome system, characterized in that: It comprises a housing (1), an ultrasonic transducer (2), a cutter head (3) and a temperature sensor (4); The housing (1) is a hollow structure, the ultrasonic transducer (2) is accommodated inside the housing (1), one end of the cutter head (3) is accommodated inside the housing (1) and connected to the ultrasonic transducer (2), and the other end of the cutter head (3) extends to the outside of the housing (1); A first extension channel (21) is provided inside the ultrasonic transducer (2), and the first extension channel (21) passes through both ends of the housing (1) in the length direction; a second extension channel (31) is provided inside the cutter head (3), and the second extension channel (31) passes through one end of the ultrasonic transducer (2) in the length direction of the housing (1), and the first extension channel (21) is connected to the second extension channel (31); The temperature sensor (4) comprises a connecting portion (41), an extending portion (42) and a detecting portion (43); the connecting portion (41) is connected to an end of the housing (1) away from the cutter head (3); the extending portion (42) is connected to the connecting portion (41) and is arranged through the first extending channel (21) and the second extending channel (31); and the detecting portion (43) is connected to the extending portion (42) and is located in the second extending channel (31).

2. The ultrasonic osteotome system according to claim 1, characterized in that: The second extension channel (31) extends from one end away from the ultrasonic transducer (2) to a portion of the cutter head (3) exposed outside the housing (1), and the second extension channel (31) is closed or connected in the length direction of the housing (1) from one end away from the ultrasonic transducer (2).

3. The ultrasonic osteotome system according to claim 1, characterized in that: The ultrasonic osteotome system meets one or more of the following conditions: a. The extension portion (42) and the side wall surface of the first extension channel (21) have a first gap (61) in the radial direction of the first extension channel (21), and the extension portion (42) and the side wall surface of the second extension channel (31) have a second gap (62) in the radial direction of the second extension channel (31); b. The first extension channel (21) and the second extension channel (31) are coaxial.

4. The ultrasonic osteotome system according to claim 1, characterized in that: The ultrasonic bone knife system also includes an external device (5), which is arranged at one end of the housing (1) away from the blade head (3) and is detachably connected to the housing (1), and the connecting portion (41) of the temperature sensor (4) is connected to the external device (5).

5. The ultrasonic osteotome system according to claim 4, characterized in that: One of the external device (5) and the housing (1) comprises a first protrusion (51), and the other comprises a first groove (52); the first protrusion (51) is accommodated in the first groove (52) and is detachably connected to the first groove (52); the first protrusion (51) has a first through hole (511) for the temperature sensor (4) to pass through.

6. The ultrasonic osteotome system according to claim 5, characterized in that: One of the outer circumferential surface of the first protrusion (51) and the inner circumferential surface of the first groove (52) is provided with a second protrusion (53), and the other is provided with a second groove (54); The second groove (54) comprises a first extension section (541), a second extension section (542) and a third extension section (543) which are connected in sequence, the first extension section (541) and the third extension section (543) both extend along the length direction of the housing (1), and the second extension section (542) extends along the circumference direction of the housing (1); One end of the first extension section (541) passes through the end surface of the first protrusion (51) or the first groove (52), the second extension section (542) is connected to the other end of the first extension section (541), and the third extension section (543) is connected to the end of the second extension section (542) away from the first extension section (541) and does not pass through the end surface of the first protrusion (51) or the first groove (52), so that the first extension section (541), the second extension section (542) and the third extension section (543) form a J-shaped structure.

7. The ultrasonic osteotome system according to claim 6, characterized in that: The external device (5) is formed with the first protrusion (51), and the second groove (54) is arranged on the outer peripheral surface of the first protrusion (51); the outer shell (1) is formed with the first groove (52), and the second protrusion (53) is arranged on the inner peripheral surface of the first groove (52).

8. The ultrasonic osteotome system according to claim 7, characterized in that: The external device (5) further comprises an abutment portion (55), the abutment portion (55) being connected to an end of the first protrusion (51) away from the housing (1), and the diameter of the abutment portion (55) being greater than the diameter of the first protrusion (51); The external connection device (5) further comprises an elastic washer (56), wherein the elastic washer (56) is sleeved on the first protrusion (51), and the two ends of the elastic washer (56) in the length direction of the housing (1) respectively abut against the abutment portion (55) and the groove wall of the first groove (52).

9. The ultrasonic osteotome system according to claim 8, characterized in that: The external device (5) comprises a temperature sensor connecting portion (57) (41), the temperature sensor connecting portion (57) (41) comprises two third protrusions (571), the third protrusions (571) protrude from one end of the abutting portion (55) away from the first protrusion (51) in a direction away from the abutting portion (55), the connecting portion (41) of the temperature sensor (4) is located between the two third protrusions (571), and the connecting portion (41) and the two third protrusions (571) are detachably connected; The abutting portion (55) is provided with a second through hole (551) for the temperature sensor (4) to pass through, and the second through hole (551) is communicated with the first through hole (511).

10. The ultrasonic osteotome system according to claim 1, characterized in that: The housing (1) comprises an ultrasonic transducer connecting portion (11) and a cutter head connecting portion (12), and the ultrasonic transducer connecting portion (11) is connected to the cutter head connecting portion (12).

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