Waterproof operation driving handle and surgical instrument

Abstract

The utility model relates to the field of medical equipment, and discloses a waterproof operation driving handle and a surgical instrument.The waterproof operation driving handle comprises a handle body and a switch assembly, the handle body comprises a shell and a driving piece, the driving piece is arranged in the shell, and the switch assembly is arranged in the shell; the switch is characterized in that the switch assembly comprises a magnetic key and a magnetic induction element which are arranged in a matched mode, the magnetic induction element is electrically connected with the driving piece, the magnetic key is arranged on the shell, the magnetic induction element is located in the shell, and an isolation plate is arranged between the magnetic key and the magnetic induction element. According to the utility model, better sealing can be formed at the switch, so that the problem that internal components are damaged due to the fact that water vapor enters the interior of the driving handle during use or disinfection is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially, relates to a waterproof type operation drive handle and surgical instrument. BACKGROUND

[0002] In operation, doctors often use drill, planer, bone saw and other surgical instruments to polish, plane and cut the pathological tissue of patients; drill, planer and bone saw all use operation drive handle, in order to avoid cross infection, these drill, planer, bone saw and drive handle are generally discarded directly after use.

[0003] In order to reduce the medical cost of operation patient, the applicant splits drive handle and precision devices such as drill, planer and bone saw and designs separately, for the drill bit, planer and saw blade and other structure precision but relatively cheap surgical assembly of operation, because disinfection treatment is inconvenient, can be discarded after use, but relatively expensive drive handle continues to be used circularly. In order to prevent cross infection, operation drive handle also needs to be disinfected and sterilized thoroughly after use.

[0004] The disinfection and sterilization of hospital after the use of drive handle generally adopts high-temperature steam sterilization, and the temperature is as high as 134 DEG C or above, and the traditional keys of drive handle, such as contact type pot piece key and silica gel film key, cannot bear high-temperature and high-pressure environment, and water may enter from the key to corrode circuit board and other components, so that the drive handle is not sensitive or directly open circuit, short circuit, and the normal use of drive handle is affected. UTILITARIAN CONTENT

[0005] Therefore, the utility model aims at providing a waterproof type operation drive handle and surgical instrument, which can form better sealing at the switch, avoid water vapor entering the inside of the drive handle during use or disinfection, and prevent the problem of internal component damage.

[0006] The utility model solves the above technical problem through the following technical scheme:

[0007] Firstly, the utility model discloses a waterproof type operation drive handle, which comprises a handle body and a switch assembly, the handle body comprises a shell and a driving part, the driving part is arranged in the shell, the switch assembly comprises a magnetic body key and a magnetic induction element matched, the magnetic induction element is electrically connected with the driving part, the magnetic body key is arranged on the shell, the magnetic induction element is located in the shell, and a partition plate is arranged between the magnetic body key and the magnetic induction element.

[0008] Further, the shell is provided with a switch hole, the switch hole is provided with a key limiting seat, the magnetic body key comprises a button, and the button is provided with a magnetic body.

[0009] Further, the magnetic body is a permanent magnet, the button is provided with a mounting groove on the side close to the magnetic induction element, and the permanent magnet is fixedly installed in the mounting groove. The magnetic body is the permanent magnet, which is water-resistant and high-temperature-resistant, and is convenient and practical. The permanent magnet is fixedly installed in the mounting groove of the button and moves together with the button.

[0010] Further, the button and the isolation plate are provided with an elastic member. The elastic member is arranged to enable the button to rebound under the restoring force of the elastic member after the button is pressed and then the hand is moved away from the button, and the use is more convenient.

[0011] Further, the elastic member is a spring, the button is provided with an annular groove on the side close to the magnetic induction element, one end of the spring is installed in the annular groove, and the other end of the spring abuts against the isolation plate. In this way, when the button is pressed, the spring is compressed, the distance between the magnetic body in the button and the magnetic induction element is shortened, when the button is released, the spring is reset, the magnetic body in the button is away from the magnetic induction element, and the button is automatically reset, which is more convenient.

[0012] Further, the isolation plate is an arc-shaped magnetic isolation plate, and the arc of the magnetic isolation plate is convex in the direction of the button. Because the volume of the surgical driving handle is small, the installation space of the switch assembly is small, and the distance between the magnetic body and the magnetic induction element for induction is generally much larger than the installation space of the handle switch assembly, the magnetic isolation plate with an arc is used in the technical solution, so that the installation distance can be controlled within the installation space of the handle switch assembly.

[0013] Further, the button is provided with an annular boss, the key limiting seat is provided with an annular inverted boss, and the annular inverted boss cooperates with the annular boss to limit the key after the key is reset. In this way, the annular inverted boss cooperates with the annular boss to limit the key after the key is reset, and the key is prevented from further popping out of the key limiting seat.

[0014] Further, the handle body is provided with a first mounting seat, the mounting seat is provided with a blind hole, and the magnetic induction element is installed in the blind hole. In this way, the first mounting seat is used to limit and install the magnetic induction element.

[0015] Further, the handle body further comprises a cable, the driving member comprises a motor, the motor comprises a rotor and a stator, the rotor is arranged to rotate in the stator, the head of the rotor is provided with an output shaft, the shell is provided with a second mounting seat and a third mounting seat, one end of the cable is electrically connected with a handle male head assembly, the other end of the cable passes through the second mounting seat and is electrically connected with the motor and a Hall plate, the third mounting seat is sleeved on the motor, the tail of the rotor is provided with a Hall magnet and a motor plug cover, the Hall magnet is matched with the Hall plate, the Hall plate is arranged between the second mounting seat and the motor plug cover, and sealing glue is filled between the second mounting seat and the motor plug cover. The motor plug cover is arranged at the tail of the motor, is used for spatially isolating the Hall plate and the Hall magnet of the motor, the second mounting seat and the third mounting seat are used for covering the motor, and the sealing glue is injected into the second mounting seat, so that the problem that the circuit is failed due to water vapor entering during use or high-temperature disinfection can be avoided, and the arrangement of the motor plug cover can also prevent the sealing glue from flowing into the motor.

[0016] In a second aspect, the utility model discloses a surgical instrument, which comprises the surgical driving handle, the drill, the planer and the bone saw instrument.

[0017] The utility model has the advantages of:

[0018] 1. The utility model discloses a button is provided with a permanent magnet, and the permanent magnet is matched with a magnetic induction element, a spring is arranged on the button, the start and stop of the handle can be realized, the whole switch assembly is non-contact type, and an isolation plate is used for isolating the permanent magnet and the magnetic induction element. When the handle is subjected to high-temperature steam disinfection, steam or liquid flow will not enter the shell and corrode the circuit, and the permanent magnet is made of high-temperature resistant material, which can well adapt to the high-temperature steam sterilization environment.

[0019] 2. The utility model discloses that the isolation plate is arc-shaped magnetic isolation plate, and the arc of the magnetic isolation plate is convex to the direction of the button. Because the volume of the surgical driving handle is small, and the installation space of the switch assembly is small, the distance between the original magnetic body and the magnetic induction element is generally much larger than the installation space of the handle switch assembly. By using an arc-shaped magnetic isolation plate, the installation distance can be controlled within the installation space of the handle switch assembly, so that the volume of the switch assembly is smaller.

[0020] 3. The utility model discloses that the motor plug cover is arranged at the tail of the motor, is used for spatially isolating the Hall plate and the Hall magnet of the motor, the second mounting seat and the third mounting seat are used for covering the motor, and the sealing glue is injected into the second mounting seat, so that the problem that the circuit is failed due to water vapor entering during use or high-temperature disinfection can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a three-dimensional structure schematic diagram of a waterproof surgical driving handle of the utility model;

[0022] Figure 2 is Figure 1 an explosion map;

[0023] Figure 3 is Figure 1 a cross-sectional structure schematic diagram;

[0024] Figure 4 is Figure 3 a local enlarged view of A in the waterproof surgical driving handle;

[0025] Figure 5 is a structure schematic diagram of a second mounting seat;

[0026] Figure 6 is a structure schematic diagram of a Hall plate.

[0027] Among them,

[0028] front body 1, rear shell 2, motor 3, cable 4, Hall element 5, isolation plate 6, switch hole 7, key limiting seat 8, button 9, magnetic body 10, installation groove 11, spring 12, annular groove 13, annular boss 14, annular inverted boss 15, first mounting seat 16, blind hole 17,

[0029] identification circuit board 18, output shaft 19, Hall plate 20, second mounting seat 21, third mounting seat 22, glue injection window 23, glue dry through hole 24, handle male head assembly 25, motor plug cover 26, Hall protection pipe 27, support pipe 28, cable sleeve 29, pressing sleeve 30, first screw 31, locking sleeve 32, stepped hole 33, second screw 34, shaft sleeve 35, hole bushing 36, heat dissipation sleeve 37, protrusion 38, first recess 39, second recess 40. DETAILED DESCRIPTION

[0030] The utility model will be described in detail below in combination with the drawings:

[0031] Example 1,

[0032] This embodiment is a waterproof surgical driving handle, such as Figures 1-6As shown: including handle body and switch assembly, handle body including shell, drive and cable 4, the drive of the embodiment is motor 3, the shell includes mutually buckling connection front body 1 and rear shell 2, switch assembly is arranged on front body 1, motor 3 is installed in rear shell 2, switch assembly includes the magnetic body button and magnetic induction element matched arrangement, the magnetic induction element of the embodiment is hall element 5, hall element 5 is electrically connected with motor 3 and external controller, the magnetic body button is movably arranged on the shell, the magnetic induction element is located inside front body 1, and the magnetic body button is provided with an isolation plate 6 between the magnetic induction element, the isolation plate 6 is arc-shaped magnetic isolation plate 6, and the arc of the magnetic isolation plate 6 is upwardly convex.

[0033] Rear shell 2 and front body 1 are provided with switch hole 7 for installing magnetic body button, the switch hole 7 is provided with button limiting seat 8, the magnetic body button includes button 9, the lower side of button 9 is provided with mounting groove 11, the magnetic body 10 is installed in mounting groove 11, the magnetic body 10 of the embodiment is permanent magnet. The elastic member is arranged between the button 9 and the isolation plate 6, the elastic member of the embodiment is spring 12, the lower side of the button 9 is further provided with annular groove 13, the upper end of the spring 12 is installed in the annular groove 13, and the lower end of the spring 12 abuts against the isolation plate 6. The button is provided with annular boss 14, and the button limiting seat 8 is provided with annular inverted boss 15, when the button is reset, the annular inverted boss 15 cooperates with the annular boss 14 to limit the button. The first mounting seat 16 is arranged in the handle body, the blind hole 17 is arranged on the mounting seat, and the magnetic induction element is installed in the blind hole 17.

[0034] The non-contact sensing button 9 in the embodiment is used, the operator presses the button 9 downward with fingers, the button 9 and the permanent magnet installed in the button 9 compress the spring 12 and move downward. In the process of movement, the distance between the permanent magnet and the hall element 5 is reduced, the hall element 5 senses the change of the magnetic field, thereby transmitting the signal to the external controller through the cable 4, and the controller controls the motor 3 to rotate. Conversely, when the operator does not press the button 9, the permanent magnet and the button 9 move upward under the reset force of the spring 12, and the hall element 5 senses the change of the magnetic field, thereby transmitting the signal to the external controller through the cable 4, and the controller controls the motor 3 to stop.

[0035] The drive handle of the embodiment can realize the start and stop of the handle by arranging the permanent magnet on the button 9, the permanent magnet cooperates with the magnetic induction element, and the spring 12 is arranged on the button 9; the whole switch assembly is non-contact type, the permanent magnet and the magnetic induction element are isolated by the isolation plate 6; when the handle is subjected to high-temperature steam sterilization, the steam or liquid flow will not enter the inside of the shell to corrode the circuit, and the permanent magnet is made of high-temperature resistant material, which can well adapt to the environment of high-temperature steam sterilization.

[0036] The other structure in the application is the same as the application number CN2023236137054 applied by the applicant, as follows: the lower side of the front body 1 is provided with an identification circuit board 18 for identifying an electronic tag on a surgical instrument, the identification circuit board 18 is in communication connection with the cable 4, the motor 3 includes a rotor and a stator, the rotor is rotatably arranged in the stator, the head of the rotor is provided with an output shaft 19, a second mounting seat 21 and a third mounting seat 22 are arranged in the housing, one end of the cable 4 is electrically connected with a handle male head assembly 25, the other end of the cable 4 passes through the second mounting seat 21 and is electrically connected with the motor 3 and the Hall plate 20, the third mounting seat 22 is sleeved on the motor 3, the tail of the rotor is provided with a Hall magnet and a motor 3 cover, the Hall magnet is arranged in matching with the Hall plate 20, the Hall plate 20 is arranged between the second mounting seat 21 and the motor 3 cover, and sealing glue is filled between the second mounting seat 21 and the motor 3 cover. The Hall element 5 is electrically connected with the cable 4, the motor 3 and the Hall plate 20.

[0037] A cable 4 sleeve is sleeved on the right side part of the cable 4, the cable 4 sleeve of the embodiment is a silica gel sleeve, a pressing sleeve 30 is sleeved on the cable 4 sleeve fixedly, the pressing sleeve 30 is provided with a first through hole, a first threaded hole is formed in one end of the rear body close to the pressing sleeve 30, and a first screw 31 is threadedly connected in the first through hole and the first threaded hole; one end of the cable 4 passing through the second mounting seat 21 is sleeved with a locking sleeve 32, the locking sleeve 32 is a cylindrical shape with an opening, one end of the cable 4 sleeve away from the handle male head assembly 25 is provided with a stepped hole 33, and the end of the locking sleeve 32 abuts against the stepped hole 33; a second threaded hole penetrating through the locking sleeve 32 is arranged on the rear body, and a second screw 34 is threadedly connected in the second threaded hole, and the end of the second screw 34 abuts against the locking sleeve 32.

[0038] The output shaft 19 is a female joint, a shaft sleeve 35 is sleeved on the female joint, a hole bushing 36 is arranged outside the shaft sleeve 35, and an installation hole is arranged on the front body 1 in the axial direction, and the hole bushing 36 is fixedly installed in the installation hole. A heat dissipation sleeve 37 is arranged between the motor 3 and the rear body, and the heat dissipation sleeve 37 is located between the second mounting seat 21 and the front body 1. Three protrusions 38 are arranged in the circumferential direction of the Hall plate 20, three first grooves 39 and second grooves 40 matched with the protrusions 38 are arranged on the second mounting seat 21 and the third mounting seat 22, and the protrusions 38 are clamped in the first grooves 39 and the second grooves 40.

[0039] The handle of the embodiment is assembled by welding the Hall plate 20 to the cable 4, welding the phase line in the cable 4 to the motor 3, and assembling the motor 3 and the Hall plate 20 welded with the line into the third mounting seat 22. During assembly, the three protrusions 38 on the Hall plate 20 are aligned with the three second grooves 40 of the third mounting seat 22, and then the supporting tube 28 is assembled into the third mounting seat 22. The motor 3 is fixed, the third mounting seat 22 is rotated (driving the Hall plate 20 to rotate) to adjust the running state of the motor 3, the running direction and current of the motor 3 are changed to the assembly requirement, and the relative position of the motor 3 and the third mounting seat 22 is fixed by gluing. The gap between the motor 3 and the Hall plate 20 is filled with silicone, and a small amount of silicone is also applied to the welding point of the cable 4 and the Hall plate 20 (first time of filling silicone). Then the second mounting seat 21 is assembled (the three protrusions on the Hall plate 20 are aligned with the three first grooves 39 of the second mounting seat 21) and welded with the third mounting seat 22, the locking sleeve 32 is assembled and the second screw 34 is tightened to lock, and the assembly is hung by the cable 4 and left to dry for a period of time. The assembly is placed horizontally, the glue injection window 23 on the second mounting seat 21 is upward, and the silicone is filled to cover the cable 4 (second time of filling silicone), and left to dry for a period of time. Similarly, the assembly is placed horizontally, the glue injection window 23 on the second mounting seat 21 is upward, and the silicone is filled to cover the cable 4 (second time of filling silicone), and left to dry for a period of time. Similarly, the assembly is placed horizontally, the glue injection window 23 on the second mounting seat 21 is upward, and the silicone is filled to cover the cable 4 (second time of filling silicone), and left to dry for a period of time.

[0040] The motor 3 cover is used to install at the tail of the motor 3, which is used to isolate the Hall plate 20 and the Hall magnet of the motor 3 in space. The second mounting seat 21 and the third mounting seat 22 are used to cover the motor 3, and the sealing glue is injected into the second mounting seat 21, so that the problem of circuit failure caused by water vapor entering during use or high-temperature disinfection can be avoided. The setting of the motor 3 cover can also prevent the sealing glue from flowing into the motor 3. The cable 4 sleeve is fixed by the pressing sleeve 30, and the pressing sleeve 30 is fixedly connected with the shell by the first screw 31, so that the cable 4 sleeve can be fixed on the shell. The cable 4 is tightly held by the locking sleeve 32 sleeved on the end thereof, and the locking sleeve 32 tightly holds the cable 4 by tightening the second screw 34, so that the joint of the cable 4 can be prevented from being separated from the Hall plate 20 during the use process.

[0041] Embodiment 2,

[0042] The embodiment is a surgical instrument which includes the above-mentioned surgical driving handle, the drill, the planer, and the bone saw instrument. Such a surgical instrument can discard the drill bit, the planer, and the saw blade after use, and the driving handle can be recycled for use.

[0043] The above examples are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application. The technical, shape, and structure parts not described in detail in the present application are well-known technologies.

Claims

1. A waterproof surgical drive handle comprising a handle body and a switch assembly, the handle body comprising a housing and a drive member, the drive member disposed within the housing, characterized in that: The switch assembly comprises a magnet key and a magnetic induction element arranged in matching, the magnetic induction element is electrically connected with a driving element, the magnet key is arranged on the shell, the magnetic induction element is located inside the shell, and an isolation plate is arranged between the magnet key and the magnetic induction element; the magnet key comprises a button, a magnet is arranged in the button, an installation groove is arranged on one side of the button close to the magnetic induction element, and the depth of the installation groove is greater than the thickness of the magnet.

2. A waterproof surgical drive handle according to claim 1, wherein: A switch hole is arranged on the shell, and a key limiting seat is arranged in the switch hole.

3. A waterproof surgical drive handle according to claim 2, wherein: The magnet is a permanent magnet.

4. A waterproof surgical drive handle according to claim 3, wherein: An elastic element is arranged between the button and the isolation plate.

5. A waterproof surgical drive handle according to claim 4, wherein: The elastic element is a spring, an annular groove is arranged on one side of the button close to the magnetic induction element, one end of the spring is arranged in the annular groove, and the other end of the spring abuts against the isolation plate.

6. A waterproof surgical drive handle according to any one of claims 1-5, characterized in that: The isolation plate is an arc-shaped magnetic isolation plate, and the arc of the magnetic isolation plate is convex in the direction of the button.

7. A waterproof surgical drive handle according to claim 2, wherein: An annular boss is arranged on the button, and an annular inverted boss is arranged on the key limiting seat, the annular inverted boss cooperates with the annular boss to limit the key after the key is reset.

8. The waterproof surgical drive handle of claim 1, wherein: A first mounting seat is arranged in the handle body, a blind hole is arranged on the mounting seat, and the magnetic induction element is arranged in the blind hole.

9. A waterproof surgical drive handle according to claim 6, wherein: The handle body further comprises a cable, the driving element comprises a motor, the motor comprises a rotor and a stator, the rotor is arranged in the stator in a rotating mode, a head of the rotor is provided with an output shaft, a second mounting seat and a third mounting seat are arranged in the shell, one end of the cable is electrically connected with a handle male head assembly, the other end of the cable is electrically connected with the motor and a Hall plate through the second mounting seat, the third mounting seat is sleeved on the motor, a tail of the rotor is provided with a Hall magnet and a motor plug, the Hall magnet is arranged in matching with the Hall plate, the Hall plate is arranged between the second mounting seat and the motor plug, and sealing glue is filled between the second mounting seat and the motor plug.

10. A surgical instrument, characterized by: The surgical instrument comprises the surgical driving handle according to any one of claims 1-9.

Images