CN106725787B - Intelligent ultrasonic navigation device for minimally invasive percutaneous pedicle screw implantation - Google Patents

Abstract

The invention provides a minimally invasive percutaneous pedicle screw imbedding intelligent ultrasonic navigation device, wherein a puncture needle is arranged in a first sleeve and is provided with an ultrasonic transmitting and receiving component for detecting surrounding biological tissues and giving an alarm through an alarm component or displaying a corresponding image through an image display component, the puncture needle and an operating handle can be detachably connected with the first sleeve, a hollow screw is sleeved outside the first sleeve, a retaining component is connected with the hollow screw and is used for retaining the hollow screw through the retaining component, so that a first end part is far away from the hollow screw along the axis of the first sleeve and is axially separated from the hollow screw. The invention can dynamically navigate the process of placing the pedicle screws, and can remind medical personnel to adjust the pedicle screws once the placing positions of the pedicle screws are wrong, thereby ensuring the correct placing of the pedicle screws, avoiding the wrong placing of the pedicle screws, reducing the generation of additional damage to patients, ensuring the safety of the operation, canceling the step of opening the pedicle screws, saving the operation time and being suitable for large-scale popularization and application.

Description

Intelligent ultrasonic navigation device for minimally invasive percutaneous pedicle screw implantation

Technical Field

The invention relates to the technical field of medical instruments, in particular to the technical field of spinal minimally invasive percutaneous pedicle screw puncture, and specifically relates to a minimally invasive percutaneous pedicle screw imbedding intelligent ultrasonic navigation device.

Background

In minimally invasive spine surgery, particularly in the case of surgical operation through the pedicles, the surgical approach has certain difficulty due to the placement position of a patient, the physiological radian of the spine and the inclination of the angle of the pedicles. The difficulty of the percutaneous pedicle puncture operation is higher than that of an open operation, so that the number of times of fluoroscopy needed in the operation is increased, and the ray exposure to medical staff and patients is increased.

Currently, many auxiliary systems related to pedicle screw implantation, including navigation systems or computer-aided systems, are researched and developed, but few guiding and positioning systems are researched for percutaneous pedicle screw puncture, balloon-expansion vertebroplasty and the like, and generally, the guiding and positioning systems are confirmed by referring to repeated X-ray fluoroscopy according to hand feeling and experience of an operator, so that the problems of wrong direction, large quantity of repeated fluoroscopy rays, long time consumption and the like are often caused. Furthermore, the vertebral pedicle and the surrounding anatomy are complex and adjacent to the spinal cord, nerves, blood vessels, etc., and the injury can cause paralysis or dysfunction of the patient, and once the important blood vessels are injured, life-threatening conditions can also occur. Therefore, the key of ensuring percutaneous pedicle puncture guiding and positioning needs to apply a scientific method to design a puncture channel establishing device which is simple and safe in operation and has a real-time monitoring function, so that the puncture channel establishing device is convenient for operation, ensures the operation safety, saves the operation time, and has very important and practical values. In addition, the existing pedicle screw is placed in a mode of firstly opening the pedicle and then placing the pedicle screw, so that the operation time is longer, and the operation risk of a patient is increased.

Therefore, the minimally invasive percutaneous pedicle screw imbedding intelligent navigation device is needed to be provided, dynamic navigation can be performed on the pedicle screw imbedding process, medical staff can be reminded to adjust once the pedicle screw imbedding position is wrong, correct imbedding of the pedicle screw is guaranteed, misplacing of the screw is avoided, extra damage to a patient is reduced, operation safety is guaranteed, the step of pedicle opening is omitted, and operation time is saved.

Disclosure of Invention

In order to overcome the defects in the prior art, one object of the present invention is to provide an intelligent ultrasound navigation device for minimally invasive percutaneous pedicle screw implantation, which can dynamically navigate the pedicle screw implantation process, and once the pedicle screw implantation position is wrong, can remind medical personnel to adjust, thereby ensuring correct pedicle screw implantation, avoiding screw misplacement, reducing extra damage to patients, ensuring operation safety, eliminating the step of pedicle screw opening, saving operation time, and being suitable for large-scale popularization and application.

The invention also aims to provide the intelligent minimally invasive percutaneous pedicle screw implantation ultrasonic navigation device which is ingenious in design, simple in structure, simple and convenient to operate, low in manufacturing and maintenance cost and suitable for large-scale popularization and application.

In order to achieve the above object, the intelligent ultrasonic navigation device for minimally invasive percutaneous pedicle screw implantation according to the present invention is characterized by comprising a first sleeve, a puncture needle, an operating handle, an ultrasonic transmitting and receiving component, a power supply control module, a calculation processing module, a hollow screw, a holding component, and an alarm component and/or an image display component, wherein the first sleeve has a first end and a second end, the first end is inserted into the hollow screw, the tip of the hollow screw is far away from the second end, the holding component is located outside the first sleeve and arranged along the length direction of the first sleeve, the holding component is connected with the hollow screw for holding the hollow screw through the holding component, and the first end is detachably connected with the hollow screw and is composed of: the first end portion carries the hollow screw along the axis of the first sleeve to move without holding the hollow screw by the holding member, and the first end portion is away from the hollow screw along the axis of the first sleeve to axially separate from the hollow screw with holding the hollow screw by the holding member; the puncture needle is provided with a first tail end and a second tail end, the puncture needle is arranged in the first sleeve in a penetrating mode, the first tail end and the second tail end are exposed outside the first end and the second end respectively, the ultrasonic transmitting and receiving component is arranged in the first tail end, the ultrasonic transmitting and receiving end of the ultrasonic transmitting and receiving component is exposed outside the surface of the first tail end, the ultrasonic transmitting and receiving component is connected with the power supply control module through a circuit to form a detection circuit, the ultrasonic transmitting and receiving component is connected with the computing and processing module and used for transmitting the received ultrasonic signals to the computing and processing module, the computing and processing module is connected with the alarm component and used for controlling the alarm action of the alarm component according to the strength of the ultrasonic signals, the computing and processing module is connected with the image display component and used for converting the ultrasonic signals into image signals and transmitting the image signals to the image display component, and the image display component displays corresponding images according to the image signals;

the puncture needle is detachably connected with the first sleeve, and the operating handle is detachably connected with the second end part; or the puncture needle is detachably connected with the first sleeve or the operating handle is detachably connected with the second end part, and the second tail end is connected with the operating handle.

Preferably, the holding member is connected to the hollow screw for circumferentially holding the hollow screw by the holding member, and the first end portion is screwed to the hollow screw and configured to: the first end portion carries the hollow screw along the axis of the first sleeve in a state where the hollow screw is not circumferentially held by the holding member, and rotates about the axis of the first sleeve to be disengaged from the hollow screw and moves away from the hollow screw along the axis of the first sleeve to be axially separated from the hollow screw in a state where the hollow screw is circumferentially held by the holding member.

Preferably, the holding member is connected to the hollow screw for axially holding the hollow screw by the holding member, and the first end portion is snap-connected to the hollow screw and configured to: the first end portion drives the hollow screw to move along the axis of the first sleeve under the condition that the hollow screw is not axially retained by the retaining component, and the first end portion is far away from the hollow screw along the axis of the first sleeve under the condition that the hollow screw is axially retained by the retaining component so as to be disengaged from the hollow screw and axially separated from the hollow screw.

Preferably, the number of the holding parts is two, and the two holding parts are oppositely arranged at intervals.

Preferably, the first and second liquid crystal films are made of a polymer, the retaining member is removably coupled to the first sleeve.

Preferably, the intelligent ultrasonic navigation device for minimally invasive percutaneous pedicle screw implantation further comprises a second sleeve, the second sleeve is sleeved outside the first sleeve and located between the first sleeve and the holding member, and the second sleeve is connected with the holding member and used for holding the holding member through the second sleeve.

More preferably, the second sleeve is connected to the holding member for circumferentially holding the holding member by the second sleeve, the holding member is connected to the hollow screw for circumferentially holding the hollow screw by the holding member, and the first end portion is screwed to the hollow screw and configured to: the first end portion carries the hollow screw along the axis of the first sleeve in a state where the hollow screw is not circumferentially held by the holding member, and rotates about the axis of the first sleeve to be disengaged from the hollow screw and moves away from the hollow screw along the axis of the first sleeve to be axially separated from the hollow screw in a state where the hollow screw is circumferentially held by the holding member.

More preferably, the second sleeve is connected to the holding member for axially holding the holding member by the second sleeve, the holding member is connected to the hollow screw for axially holding the hollow screw by the holding member, and the first end portion is snap-fitted to the hollow screw and configured to: the first end portion drives the hollow screw to move along the axis of the first sleeve under the condition that the hollow screw is not axially held by the holding component, and the first end portion is far away from the hollow screw along the axis of the first sleeve under the condition that the hollow screw is axially held by the holding component so as to be released from clamping connection with the hollow screw and axially separated from the hollow screw.

Preferably, the intelligent navigation device for minimally invasive percutaneous pedicle screw implantation further comprises a third sleeve, the third sleeve is sleeved between the first sleeve and the second sleeve, the third sleeve is rotatably arranged around the axis of the first sleeve relative to the first sleeve and axially limited, and the end part, close to the second end part, of the third sleeve axially limited is used for preventing the second sleeve from moving towards the second end part along the axis of the first sleeve.

Preferably, the intelligent navigation device for minimally invasive percutaneous pedicle screw implantation further comprises a third sleeve, the third sleeve is sleeved between the first sleeve and the second sleeve, the third sleeve is fixedly connected with the first sleeve, and the end, close to the second end, of the second sleeve is axially limited by the third sleeve and used for preventing the second sleeve from moving to the second end along the axis of the first sleeve.

Preferably, the ultrasonic transmitting and receiving component is an ultrasonic probe.

Preferably, the first end is a beveled end or a centripetal end.

Preferably, the second end and the second end are removably connected.

Preferably, the operating handle is connected with the second end portion in a clamping mode.

Preferably, the second end is a T-shaped end, the T-shaped end has a first radial protrusion and a second radial protrusion, the first radial protrusion and the second radial protrusion are oppositely arranged, and the operating handle is detachably connected with the first radial protrusion and the second radial protrusion respectively.

Preferably, the operating handle is a T-shaped operating handle, the T-shaped operating handle has a first cross rod portion and a second cross rod portion, the first cross rod portion and the second cross rod portion are oppositely arranged, and the second end portion is detachably connected with the first cross rod portion and the second cross rod portion respectively.

Preferably, the power supply control module is disposed in the puncture needle or the operation handle, the calculation processing module is disposed in the puncture needle or the operation handle, the image display part is disposed on a side surface of the second end or the operation handle, or the side surface of the second end or the operation handle is provided with the alarm part.

Preferably, the image display part is a computer monitor.

Preferably, the warning means comprises at least one of an audible warning means and a visual warning means.

The invention has the following beneficial effects:

1. the first end part of a first sleeve of the minimally invasive percutaneous pedicle screw embedded intelligent ultrasonic navigation device is arranged in the hollow screw in a penetrating mode, the tip end of the hollow screw is far away from the second end part of the first sleeve, a maintaining part is located outside the first sleeve and arranged along the length direction of the first sleeve, the maintaining part is connected with the hollow screw and used for maintaining the hollow screw through the maintaining part, and the first end part is detachably connected with the hollow screw and comprises: under the condition that the hollow screw is not held by the holding component, the first end part drives the hollow screw to move along the axis of the first sleeve, under the condition that the hollow screw is held by the holding component, the first end part is far away from the hollow screw along the axis of the first sleeve so as to be separated from the hollow screw in the axial direction, a first end and a second end of the puncture needle are respectively exposed out of the first end part and the second end part of the first sleeve, an ultrasonic transmitting and receiving component is arranged in the first end, an ultrasonic transmitting and receiving end of the ultrasonic transmitting and receiving component is exposed out of the surface of the first end part, the ultrasonic transmitting and receiving component is electrically connected with a power supply control module to form a detection circuit, the ultrasonic transmitting and receiving component is connected with a calculation processing module and used for transmitting received ultrasonic signals to the calculation processing module, the calculation processing module is connected with an alarm component and used for controlling the alarm action of the alarm component according to the strength of the ultrasonic signals, the calculation processing module is connected with an image display component and used for converting the ultrasonic signals into image signals and transmitting the image signals to the image display component, the image display component displays corresponding images according to the image signals, wherein the puncture needle is detachably connected with the first sleeve, and the operation handle is detachably connected with the second end part; or, the puncture needle can be detachably connected with the first sleeve or the operating handle can be detachably connected with the second end part, and the second end is connected with the operating handle, so that dynamic navigation can be performed in the process of placing the pedicle screws, medical staff can be reminded to adjust the pedicle screws once the pedicle screws are placed mistakenly, correct placing of the pedicle screws is guaranteed, mistaken placing of the pedicle screws is avoided, extra damage to a patient is reduced, operation safety is guaranteed, the step of opening the pedicle screws is cancelled, operation time is saved, and the pedicle screw inserting device is suitable for large-scale popularization and application.

2. The first end part of a first sleeve of the minimally invasive percutaneous pedicle screw embedded intelligent ultrasonic navigation device is arranged in the hollow screw in a penetrating mode, the tip end of the hollow screw is far away from the second end part of the first sleeve, a maintaining part is located outside the first sleeve and arranged along the length direction of the first sleeve, the maintaining part is connected with the hollow screw and used for maintaining the hollow screw through the maintaining part, and the first end part is detachably connected with the hollow screw and comprises: under the condition that the hollow screw is not kept through the keeping component, the first end part drives the hollow screw to move along the axis of the first sleeve, under the condition that the hollow screw is kept through the keeping component, the first end part is far away from the hollow screw along the axis of the first sleeve so as to be separated from the hollow screw in the axial direction, the first end part and the second end part of the puncture needle are respectively exposed out of the first end part and the second end part of the first sleeve, the ultrasonic transmitting and receiving component is arranged in the first end part, the ultrasonic transmitting and receiving end of the ultrasonic transmitting and receiving component is exposed out of the surface of the first end part, the ultrasonic transmitting and receiving component is connected with the power supply control module to form a detection circuit, the ultrasonic transmitting and receiving component is connected with the calculation processing module and used for transmitting the received ultrasonic signals to the calculation processing module, the calculation processing module is connected with the alarm component and used for controlling the alarm action of the alarm component according to the strength of the ultrasonic signals, the calculation processing module is connected with the image display component and used for converting the ultrasonic signals into image signals and transmitting the image signals to the image display component, and the image display component displays corresponding images according to the image signals, wherein the puncture needle is detachably connected with the first sleeve, and the operation handle is detachably connected with the second end part; or the puncture needle is detachably connected with the first sleeve or the operating handle is detachably connected with the second end part, and the second end is connected with the operating handle, so the puncture needle has the advantages of ingenious design, simple structure, simplicity and convenience in operation, low manufacturing and maintenance cost and suitability for large-scale popularization and application.

These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description, the accompanying drawings and the appended claims, wherein like reference numerals refer to like parts throughout the several views, and wherein like reference numerals refer to like parts throughout the several views.

Drawings

Fig. 1 is a schematic front view of an embodiment of the intelligent ultrasonic navigation device for minimally invasive percutaneous pedicle screw implantation according to the invention.

Fig. 2 is an exploded view of the embodiment shown in fig. 1.

Fig. 3 is an enlarged partial view of the embodiment of fig. 1 with the hollow screw removed.

Fig. 4 is a schematic front view of a puncture needle of another embodiment of the intelligent ultrasonic navigation device for minimally invasive percutaneous pedicle screw implantation of the invention.

(symbol description)

1 a first sleeve; 2, puncture needles; 3 operating a handle; 4 ultrasonic transmitting and receiving components; 5 an image display section; 6 a power supply control module; 7, a calculation processing module; 8 an alarm component; 9 a first end portion; 10 a second end portion; 11 a first end; 12 a second end; 13 a first radial projection; 14 a second radial projection; 15 a first crossbar portion; 16 a second crossbar portion; 17 graduation lines; 18 a hollow screw; 19 a holding member; 20 a second sleeve; 21 a radial projection; 22 a third sleeve; 23 a first radial flange; 24 second radial flange.

Detailed Description

In order to clearly understand the technical contents of the present invention, the following examples are given in detail.

Referring to fig. 1-3, in an embodiment of the present invention, the intelligent ultrasound navigation device for minimally invasive percutaneous pedicle screw implantation of the present invention includes a first sleeve 1, a puncture needle 2, an operation handle 3, an ultrasound transmitting and receiving component 4, a power supply control module 6, a calculation processing module 7, a hollow screw 18, a holding component 19, and an alarm component 8 and/or an image display component 5, wherein the first sleeve 1 has a first end 9 and a second end 10, the first end 9 is inserted into the hollow screw 18, a tip of the hollow screw 18 is far away from the second end 10, the holding component 19 is located outside the first sleeve 1 and is arranged along a length direction of the first sleeve 1, the holding component 19 is connected with the hollow screw 18 for holding the hollow screw 18 through the holding component 19, and the first end 9 is detachably connected with the hollow screw 18 and configured to: in the case where the hollow screw 18 is not held by the holding member 19, the first end portion 9 carries the hollow screw 18 along the axis of the first sleeve 1, whereas in the case where the hollow screw 18 is held by the holding member 19, the first end portion 9 is away from the hollow screw 18 along the axis of the first sleeve 1 so as to be axially separated from the hollow screw 18; the puncture needle 2 is provided with a first tail end 11 and a second tail end 12, the puncture needle 2 is arranged in the first sleeve 1 in a penetrating manner and is detachably connected with the first sleeve 1, the first tail end 11 and the second tail end 12 are respectively exposed outside the first end part 9 and the second end part 10, the operating handle 3 is detachably connected with the second end part 10, the ultrasonic transmitting and receiving component 4 is arranged in the first tail end 11, an ultrasonic transmitting and receiving end of the ultrasonic transmitting and receiving component 4 is exposed outside the surface of the first tail end 11, the ultrasonic transmitting and receiving component 4 is in circuit connection with the power supply control module 6 to form a detection circuit, the ultrasonic transmitting and receiving component 4 is connected with the calculation processing module 7 and is used for transmitting a received ultrasonic signal to the calculation processing module 7, the calculation processing module 7 is connected with the alarm component 8 and is used for controlling the alarm action of the alarm component 8 according to the strength of the ultrasonic signal, the calculation processing module 7 is connected with the image display component 5 and is used for converting the ultrasonic signal into an image signal and transmitting the image signal to the image display component 5, and the image display component 5 displays an image according to the image signal.

The "alarm means 8 and/or image display means 5" means that there are three cases: only the alarm section 8, only the image display section 5, or both the alarm section 8 and the image display section 5.

Therefore, when in use, in the pedicle screw (the hollow screw 18) inserting stage, the hollow screw 18 is not held by fixing the holding part 19 by hands, the first end part 9 drives the hollow screw 18 to move along the axis of the first sleeve 1, the ultrasonic transmitting and receiving part 4 is used for detecting surrounding biological tissues, different biological tissues and reflected ultrasonic signals with different intensities, if the intensity of the ultrasonic signals is greater than a preset value, the calculation processing module 7 controls the alarm part 8 to give an alarm, if the intensity of the ultrasonic signals is not greater than the preset value, the calculation processing module 7 controls the alarm part 8 not to give an alarm, medical staff can timely make direction adjustment according to the alarm of the alarm part, and the pedicle screw inserting direction is prevented from deviating. Here, the calculation processing module 7 is given a control function of the alarm unit 8, and if the control function is integrated into the alarm unit 8, the alarm unit 8 may be directly connected to the ultrasonic transmitting and receiving unit 4, and whether to alarm or not may be automatically determined according to the intensity of the ultrasonic signal transmitted by the ultrasonic transmitting and receiving unit 4. The calculation processing module 7 may convert the ultrasonic signal into an image signal and transmit the image signal to the image display unit 5, and the image display unit 5 may display a corresponding image. Medical personnel can in time make the direction adjustment according to the image that image display part 5 shows, avoid the passageway to establish the deviation. In the pedicle screw indwelling stage, the operating handle 3 and the puncture needle 2 can be removed by fixing the first sleeve 1 by hand, the hollow screw 18 can be held by fixing the holding member 19 by hand, the first end portion 9 is separated from the hollow screw 18 in the axial direction along the axis of the first sleeve 1 so as to be axially separated from the hollow screw 18, the first sleeve 1 can be removed, and the holding member 19 can be removed.

The detachable connection of the first end portion 9 and the hollow screw 18 can adopt any suitable structure, as shown in fig. 1-3, in an embodiment of the present invention, the holding member 19 is connected with the hollow screw 18 for circumferentially holding the hollow screw 18 by the holding member 19, and the first end portion 9 is screwed with the hollow screw 18 and is configured to: without circumferential retention of the hollow screw 18 by the retaining means 19, the first end portion 9 entrains the hollow screw 18 to move along the axis of the first sleeve 1, whereas with circumferential retention of the hollow screw 18 by the retaining means 19, the first end portion 9 rotates about the axis of the first sleeve 1 to disengage the threaded connection with the hollow screw 18 and moves away from the hollow screw 18 along the axis of the first sleeve 1 to axially separate from the hollow screw 18. The circumferential direction refers to a circumferential direction of rotation about the axis of the first sleeve 1. Specifically, the following settings may be made: the outer side of the first end part 9 is provided with a male thread, the inner wall of the hollow screw 18 is provided with a female thread, the first end part 9 is rotated into the hollow screw 18 in a direction from the second end part 10 towards the first end part 9 to be screwed with the hollow screw 18, and the first end part 9 is rotated out of the hollow screw 18 in a direction from the first end part 9 towards the second end part 10 to be axially separated from the hollow screw 18.

In the case that the first end portion 9 is screwed with the hollow screw 18, the holding member 19 is connected with the hollow screw 18 for circumferentially holding the hollow screw 18 by the holding member 19, and any suitable structure may be adopted as long as the hollow screw 18 is held by the holding member 19 without rotating, as shown in fig. 1 to 3, and in a specific embodiment of the present invention, the holding member 19 is fixedly connected with the hollow screw 18. Obviously, other connecting structures can be adopted for the holding member 19 and the hollow screw 18, for example, the holding member 19 and the hollow screw 18 can be connected in a threaded manner and in the same direction as the threaded connection of the first end portion 9 and the hollow screw 18. For example, when the hollow screw 18 is circumferentially held by the holding member 19 in the case of clockwise tightening in the direction from the second end 10 toward the first end 9, even if the hollow screw 18 cannot be rotated counterclockwise, the first end 9 is rotated counterclockwise to be disengaged from the hollow screw 18 and is separated from the hollow screw 18 in the axial direction along the axis of the first sleeve 1 by being separated from the hollow screw 18, and the hollow screw 18 is not rotated counterclockwise; alternatively, the holding part 19 and the hollow screw 18 can be connected in a snap-fit manner, for example, in an axial plug-in manner, which, because of the circumferential limitation, is not an axial plug-in manner without circumferential limitation, for example, an axial annular groove and an axial annular projection, but an axial plug-in manner with circumferential limitation, for example, an axial projection and an axial recess. The retaining element 19 can be removed last in such a way that the retaining element 19 is broken, in the case of a threaded connection the retaining element 19 can for example be rotated in the opposite direction in order to be unscrewed from the hollow screw 18 (in which case the number of turns is recommended to be much smaller than between the first end 9 and the hollow screw 18), and in the case of an axial snap-fit the retaining element 19 can also be pulled off directly in the axial direction.

The detachable connection of the first end portion 9 to the hollow screw 18 can adopt any other suitable structure, preferably, the holding member 19 is connected to the hollow screw 18 for axially holding the hollow screw 18 by the holding member 19, the first end portion 9 is connected to the hollow screw 18 in a snap-fit manner and is configured to: without the hollow screw 18 being axially retained by the retaining means 19, the first end portion 9 carries the hollow screw 18 along the axis of the first sleeve 1, whereas with the hollow screw 18 being axially retained by the retaining means 19, the first end portion 9 is moved away from the hollow screw 18 along the axis of the first sleeve 1 so as to disengage from the hollow screw 18 and axially separate from the hollow screw 18. The axial direction refers to the axial direction of the first sleeve 1. Specifically, the following settings may be made: the outer side surface of the first end part 9 is provided with an axial convex part, the inner wall of the hollow screw 18 is provided with an axial concave part, the axial convex part is inserted in the axial concave part, the first end part 9 is connected with the hollow screw 18 in an axial clamping manner, the first end part 9 is close to the hollow screw 18 along the direction from the second end part 10 to the first end part 9, so that the axial convex part is inserted in the axial concave part, and the first end part 9 is far away from the hollow screw 18 along the direction from the first end part 9 to the second end part 10, so that the axial convex part is separated from the axial concave part to realize the axial separation from the hollow screw 18.

In the case of a snap-fit connection of the first end 9 with the hollow screw 18, the holding member 19 is connected to the hollow screw 18 for axially holding the hollow screw 18 by the holding member 19 may adopt any suitable structure, and preferably, the holding member 19 is fixedly connected to the hollow screw 18. Obviously, other connecting structures can be adopted for the holding part 19 and the hollow screw 18, for example, the holding part 19 and the hollow screw 18 can also be connected in a threaded manner. Alternatively, the holding part 19 and the hollow screw 18 can also be snap-connected, for example axially, with a clamping force that is considerably smaller than the clamping force of the first end 9 and the hollow screw 18. The retaining element 19 can be removed last in such a way that the retaining element 19 is broken, in the case of a screw connection the retaining element 19 can be rotated, for example, in the opposite direction in order to disengage the screw connection from the hollow screw 18 (in which case the number of turns is preferably much smaller than the number of turns between the first end 9 and the hollow screw 18), and in the case of an axial snap connection the retaining element 19 can be pulled off directly in the axial direction.

The number of the holding members 19 can be determined as required, and referring to fig. 1 to 3, in an embodiment of the present invention, the number of the holding members 19 is two, and the two holding members 19 are oppositely spaced.

The retaining member 19 may be any suitable retaining member, and referring to fig. 1-3, in one embodiment of the present invention, the retaining member 19 is an extension rod.

When the retaining member 19 is not used, i.e. during the pedicle screw insertion process, the retaining member 19 is preferably detachably connected, e.g. snapped, to the first sleeve 1 for temporary fixation, and when it is desired to use, the retaining member 19 is detached from the first sleeve 1.

For the convenience of operation, please refer to fig. 1-3, in an embodiment of the present invention, the smart navigation device for minimally invasive percutaneous pedicle screw placement further includes a second sleeve 20, the second sleeve 20 is sleeved outside the first sleeve 1 and located between the first sleeve 1 and the retaining member 19, and the second sleeve 20 is connected to the retaining member 19 for retaining the retaining member 19 through the second sleeve 20.

The second sleeve 20 is connected with the holding member 19 for holding the holding member 19 by the second sleeve 20, and any suitable structure may be adopted, as shown in fig. 1-3, in a specific embodiment of the present invention, the second sleeve 20 is connected with the holding member 19 for circumferentially holding the holding member 19 by the second sleeve 20, the holding member 19 is connected with the hollow screw 18 for circumferentially holding the hollow screw 18 by the holding member 19, and the first end portion 9 is threadedly connected with the hollow screw 18 and configured to: in the case where the hollow screw 18 is not circumferentially held by the holding member 19, the first end portion 9 carries the hollow screw 18 along the axis of the first sleeve 1, whereas in the case where the hollow screw 18 is circumferentially held by the holding member 19, the first end portion 9 is rotated about the axis of the first sleeve 1 to be disengaged from the hollow screw 18 and is moved away from the hollow screw 18 along the axis of the first sleeve 1 to be axially separated from the hollow screw 18.

In the case of a threaded connection of the first end 9 to the hollow screw 18, the second sleeve 20 connected to the retaining element 19 for circumferentially retaining the retaining element 19 by means of the second sleeve 20 may take any suitable configuration, for example, the second sleeve 20 is radially snap-connected to the retaining element 19, as shown in fig. 1-3, and in a specific embodiment of the invention, the second sleeve 20 is radially bayonet-connected to the retaining element 19, and because of the circumferential limitation, the radial bayonet-connection is not a radial bayonet-connection without circumferential limitation, such as a radial annular groove and a radial annular protrusion, but a radial bayonet-connection with circumferential limitation, such as a radial protrusion and a radial recess. Specifically, the following settings may be made: the side of the holding part 19 close to the end of the second end 10 has a radial projection 21, and the side of the second sleeve 20 has a radial recess (not shown), in which the radial projection 21 is inserted. The retaining element 19 may also have a resilient nature tending to insert the radial projection 21 into the radial recess, so that the snap fit is secure. Obviously, other connecting structures can be used for the second sleeve 20 and the retaining part 19, for example, the second sleeve 20 and the retaining part 19 can be fixedly connected; alternatively, the second sleeve 20 and the holding part 19 can also be screwed in the same direction as the first end 9 and the hollow screw 18. For example, in the case of clockwise tightening in the direction from the second end 10 toward the first end 9, while the holding member 19 is circumferentially held by the second sleeve 20 to circumferentially hold the hollow screw 18, even if the hollow screw 18 cannot be rotated counterclockwise, the first end 9 is rotated counterclockwise to be disengaged from the hollow screw 18 and is separated from the hollow screw 18 in the axial direction along the axis of the first sleeve 1 by being away from the hollow screw 18, and the hollow screw 18 and the holding member 19 are not rotated counterclockwise accordingly.

The second sleeve 20 being connected to the holding member 19 for holding the holding member 19 by means of the second sleeve 20 may take any other suitable configuration, preferably, the second sleeve 20 being connected to the holding member 19 for axially holding the holding member 19 by means of the second sleeve 20, the holding part 19 is connected to the hollow screw 18 for axially holding the hollow screw 18 by means of the holding part 19, and the first end 9 is snap-connected to the hollow screw 18 and is designed to: in the absence of the axial retention of the hollow screw 18 by the retaining means 19, the first end 9 carries the hollow screw 18 along the axis of the first sleeve 1, whereas in the case of the axial retention of the hollow screw 18 by the retaining means 19, the first end 9 is distanced from the hollow screw 18 along the axis of the first sleeve 1 so as to disengage the snap-fit connection with the hollow screw 18 and axially separate from the hollow screw 18.

In the case of a snap connection of the first end 9 to the hollow screw 18, the second sleeve 20 connected to the holding part 19 for axially holding the holding part 19 by the second sleeve 20 may adopt any suitable structure, for example, the second sleeve 20 is snap connected to the holding part 19, such as a radial snap connection, and preferably, the second sleeve 20 is radially plugged to the holding part 19, and because of the axial limitation, the radial plug is not a radial plug without axial limitation, such as an axial groove and an axial protrusion, but a radial plug with axial limitation, such as a radial protrusion and a radial recess. Specifically, the following settings may be made: the retaining part 19 has a radial projection 21 on its side facing the end of the second end 10, and the second sleeve 20 has a radial recess on its side, into which the radial projection 21 engages. Obviously, other connecting structures for the second sleeve 20 and the retaining member 19 may be adopted, for example, the second sleeve 20 and the retaining member 19 are fixedly connected; alternatively, the second sleeve 20 and the holding part 19 can also be screwed together. For example, in the case of a clockwise tightening in the direction from the second end 10 towards the first end 9, with the hollow screw 18 axially retained by the retaining means 19 by the second sleeve 20, the first end 9 is axially distanced from the hollow screw 18 along the axis of the first sleeve 1, so as to be axially separated from the hollow screw 18, without the hollow screw 18 and the retaining means 19 moving axially therewith.

In order to avoid friction between the first sleeve 1 and the second sleeve 20, please refer to fig. 1-3, in an embodiment of the present invention, the smart navigation device for minimally invasive percutaneous pedicle screw placement further includes a third sleeve 22, the third sleeve 22 is sleeved between the first sleeve 1 and the second sleeve 20, the third sleeve 22 is rotatably disposed around an axis of the first sleeve 1 relative to the first sleeve 1 and axially limited, and the third sleeve 22 axially limits an end of the second sleeve 20 close to the second end 10 for preventing the second sleeve 20 from moving toward the second end 10 along the axis of the first sleeve 1.

In this case, the third sleeve 22 axially limits the end of the second sleeve 20 close to the second end 10 to prevent the second sleeve 20 from moving along the axis of the first sleeve 1 towards the second end 10, and any suitable structure may be adopted, as shown in fig. 1-3, in a specific embodiment of the present invention, the end of the third sleeve 22 close to the second end 10 has a first radial flange 23, the end of the second sleeve 20 close to the second end 10 has a second radial flange 24, the second radial flange 24 has a recess (not shown) opening towards the second end 10, the first radial flange 23 is located in the recess and abuts against the bottom surface of the recess, and the circumferential direction may or may not be limited. Obviously, other connecting structures can be adopted for the third sleeve 22 to axially limit the end of the second sleeve 20 close to the second end 10, for example, the end of the third sleeve 22 close to the second end 10 is provided with a first radial flange 23, and the first radial flange 23 directly abuts against the end face of the end of the second sleeve 20 close to the second end 10.

In order to avoid friction between the first sleeve 1 and the second sleeve 20, the third sleeve 22 may be further configured such that: the third sleeve 22 is sleeved between the first sleeve 1 and the second sleeve 20, the third sleeve 22 is fixedly connected to the first sleeve 1, and the third sleeve 22 axially limits the end portion, close to the second end portion 10, of the second sleeve 20 so as to prevent the second sleeve 20 from moving towards the second end portion 10 along the axis of the first sleeve 1.

In this case, the axial restraint of the end of the second sleeve 20 close to the second end 10 by the third sleeve 22 for preventing the second sleeve 20 from moving along the axis of the first sleeve 1 towards the second end 10 may take any suitable configuration, preferably the end of the third sleeve 22 close to the second end 10 has a first radial flange 23, the end of the second sleeve 20 close to the second end 10 has a second radial flange 24, the second radial flange 24 has a recess opening towards the second end 10, the first radial flange 23 is located in the recess and abuts against the bottom surface of the recess, in the case of a threaded connection of the first end 9 and the hollow screw 18, the circumferential restraint is not required, i.e. here the first radial flange 23 and the second radial flange 24 need to be circumferentially non-interfering. Obviously, other connecting structures for axially limiting the end of the second sleeve 20 close to the second end 10 by the third sleeve 22 for preventing the second sleeve 20 from moving along the axis of the first sleeve 1 towards the second end 10 may be adopted, for example, the end of the third sleeve 22 close to the second end 10 is provided with a first radial flange 23, and the first radial flange 23 directly abuts against the end face of the end of the second sleeve 20 close to the second end 10. If the first end 9 and the hollow screw 18 are screwed together, the third sleeve 22 and the second sleeve 20 may also be screwed together, in the same direction.

Depending on the structure and relative position of the second end 12 and the operating handle 3, the second end 12 may or may not be located in the operating handle 3, as shown in fig. 1, and in an embodiment of the present invention, the second end 12 is located in the operating handle 3.

In other alternative embodiments, the puncture needle 2 and the operation handle 3 can be detachably connected to the first sleeve 1 through an indirect structure, for example, the puncture needle 2 is detachably connected to the first sleeve 1, the second end 12 is connected to the operation handle 3, and then the operation handle 3 is detachably connected to the first sleeve 1 through the puncture needle 2; alternatively, the operation handle 3 may be detachably connected to the second end portion 10, and the second tip 12 may be connected to the operation handle 3, so that the puncture needle 2 may be detachably connected to the first sleeve 1 via the operation handle 3.

Since the surface of the first end 11 enters the body of the patient when the pedicle screw is inserted, the ultrasonic transmitting and receiving end of the ultrasonic transmitting and receiving part 4 can be exposed at any suitable position on the surface of the first end 11.

The ultrasonic wave transmitting and receiving component 4 can be any ultrasonic wave transmitting and receiving component, please refer to fig. 1, in an embodiment of the present invention, the ultrasonic wave transmitting and receiving component 4 is an ultrasonic probe. The ultrasound probe may be, for example, an a-mode ultrasound probe or a B-mode ultrasound probe. In the case of the a-mode ultrasonic probe, since the a-mode ultrasonic probe is linear and invisible, the image display section 5 is not included, only the alarm section 8 is included, and only the alarm function is provided; in the case of a B-mode ultrasound probe, since visibility is provided, the ultrasound probe may include an alarm unit 8 and an image display unit 5, and may have an alarm function and an image display function, or may include only the image display unit 5.

The ultrasonic transceiver 4 may have any suitable shape, and referring to fig. 3, in an embodiment of the present invention, the ultrasonic transceiver 4 is a ring-shaped ultrasonic transceiver.

The first end 11 may have any suitable shape, and preferably, the first end 11 is a beveled end or a centripetal end. Referring to fig. 1 and 3, in an embodiment of the present invention, the first end 11 is a centripetal end, and a middle portion of the first end 11 protrudes more peripherally away from the second end 12. Referring to fig. 4, in another embodiment of the present invention, the first end 11 is a slant end, i.e. the end surface is a slant surface.

The puncture needle 2 is detachably connected to the first sleeve 1. Any suitable portion of the puncture needle 2 is detachably connected to the first sleeve 1, as shown in fig. 1-2. In one embodiment of the present invention, the second end 12 is detachably connected to the second end 10.

The removable connection of the second end 12 to the second end 10 may be any suitable structure, and referring to fig. 1-2, in one embodiment of the present invention, the second end 12 is threadably connected to the second end 10. For example, the second end 10 has a male thread and the second end 12 has a female thread, which engages on the male thread.

The detachable connection of the operating handle 3 to the second end portion 10 can be any suitable structure, and referring to fig. 1-2, in an embodiment of the present invention, the operating handle 3 is connected to the second end portion 10 in a snap-fit manner.

The second end 10 may have any suitable shape, and preferably, the second end 10 is a T-shaped end, the T-shaped end has a first radial protrusion 13 and a second radial protrusion 14, the first radial protrusion 13 and the second radial protrusion 14 are oppositely arranged, and the operating handle 3 is detachably connected to the first radial protrusion 13 and the second radial protrusion 14, respectively, as shown in fig. 1-2, in a specific embodiment of the present invention, in a case where the operating handle 3 is connected to the second end 10 in a snap-fit manner, the operating handle 3 is connected to the first radial protrusion 13 and the second radial protrusion 14 in a snap-fit manner.

The operating handle 3 may have any suitable shape, and preferably, the operating handle 3 is a T-shaped operating handle, the T-shaped operating handle has a first crossbar portion 15 and a second crossbar portion 16, the first crossbar portion 15 and the second crossbar portion 16 are oppositely oriented, and the second end portion 10 is detachably connected with the first crossbar portion 15 and the second crossbar portion 16, respectively, as shown in fig. 1-2, in a specific embodiment of the present invention, in a case where the operating handle 3 is connected with the second end portion 10 in a snap-fit manner, and the second end portion 10 is a T-shaped end portion, and the T-shaped end portion has a first radial protrusion 13 and a second radial protrusion 14, the first crossbar portion 15 and the second crossbar portion 16 are connected with the first radial protrusion 13 and the second radial protrusion 14 in a snap-fit manner, respectively.

The puncture rod 2 can be any suitable puncture rod, and in a specific embodiment of the invention, the puncture needle 2 is a conductive puncture needle, so that the ultrasound transmitting and receiving component 4 can be directly conducted through the conductive puncture needle without additionally arranging a lead for conducting electricity.

In order to quickly understand the depth of the first sleeve 1, please refer to fig. 1-2, in an embodiment of the present invention, the outer side surface of the first sleeve 1 is provided with scale marks 17 along the axial direction.

The operating handle 3 may be a transparent operating handle, or may be a translucent or opaque operating handle, as shown in fig. 1-2, in an embodiment of the present invention, the operating handle 3 is a transparent operating handle.

The power supply control module 6 may be disposed at any suitable position, for example, in the puncture needle 2 or the operation handle 3, or may exist independently of the puncture needle 2 and the operation handle 3, and preferably, the power supply control module 6 is disposed in the puncture needle 2 or the operation handle 3. Referring to fig. 1 and 2, in an embodiment of the present invention, the power supply control module 6 is disposed in the operation handle 3. In this case, the connection between the ultrasound transmitting and receiving part 4 and the power supply control module 6 can be electrically conducted through the wire connection between the second end 12 and the operation handle 3, or through the abutment of the second end 12 against the operation handle 3, so that the wire in the second end 12 (in the case where the puncture needle 2 is a conductive puncture needle, the second end 12) is directly in contact with and electrically conducted with the power supply control module 6 of the operation handle 3.

The ultrasonic transceiver 4 may be connected to the calculation processing module 7 by a wired connection or a wireless connection, as shown in fig. 1 and 2, in an embodiment of the present invention, the ultrasonic transceiver 4 is connected to the calculation processing module 7 by a wired connection (shown by a solid line in the figure).

The calculation processing module 7 may be any suitable calculation processing module, and in an embodiment of the present invention, the calculation processing module 7 is a central processing unit CPU.

The calculation processing module 7 may be disposed at any suitable position, for example, may be disposed in the puncture needle 2 or the operation handle 3, or may exist independently of the puncture needle 2 and the operation handle 3, and preferably, the calculation processing module 7 is disposed in the puncture needle 2 or the operation handle 3. Referring to fig. 1 and 2, in an embodiment of the present invention, the calculation processing module 7 is disposed in the operation handle 3.

The calculation processing module 7 may be connected to the image display unit 5 by a wired connection or a wireless connection, please refer to fig. 1 and 2, in an embodiment of the present invention, the calculation processing module 7 is connected to the image display unit 5 by a wireless connection (indicated by a dashed line in the figure).

The image display unit 5 may be any suitable image display unit, and in one embodiment of the present invention, the image display unit 5 is a computer monitor. Obviously, the image display part 5 may also be, for example, a display screen of a mobile phone, a television set, or the like.

The image display part 5 may be disposed at any suitable position, for example, on the side of the second end 12 or the operating handle 3, or may exist independently of the side of the second end 12 and the operating handle 3, as shown in fig. 1 and 2, and in a specific embodiment of the present invention, the image display part 5 exists independently of the side of the second end 12 and the operating handle 3.

The calculation processing module 7 may be connected to the alarm component 8 by a wired connection or a wireless connection, please refer to fig. 1 and 2, in an embodiment of the present invention, the calculation processing module 7 is connected to the alarm component 8 by a wired connection (indicated by a solid line in the figure).

The alarm component 8 may be any suitable alarm component, and preferably the alarm component 8 comprises at least one of an audible alarm component and a visual alarm component. In a particular embodiment of the invention, said alarm means 8 comprise both acoustic alarm means and visual alarm means, i.e. by both acoustic and visual alarms.

The audible alarm component may be any suitable component, such as a speaker. The sound alarm component can be a single sound alarm component or a multi-sound alarm component, and the sound emitted by the multi-sound alarm component can be the same or different.

The visual alert component may be any suitable component, such as a display component, which may be an LED display component, or an indicator light, which may be a color indicator light, a symbol indicator light, or a graphic indicator light. The color indicating lamp can be a single color indicating lamp or a multi-color indicating lamp, and a static light-emitting indicating lamp or a dynamic flashing indicating lamp can be selected.

The alarm means 8 may be mounted in any suitable location, for example on the side of the second end 12 or on the operating handle 3, or may be present independently of the side of the second end 12 and the operating handle 3. Preferably, the alarm means 8 is mounted on the side of said second end 12 or on said operating handle 3. Referring to fig. 1, in an embodiment of the present invention, in case that the operating handle 3 is a transparent operating handle, the alarm part 8 is installed in the operating handle 3.

Since the alarm part 8 needs to be installed at a place visible or audible to medical staff, and the side of the second end 12 and the operation handle 3 do not enter the body of the patient when the pedicle screw is inserted, the alarm part 8 can be installed at any suitable position of the side of the second end 12 and the operation handle 3.

The above embodiment describes the case where one ultrasonic transmission/reception member 4 is provided, and in order to know the condition of the biological tissue around a plurality of different positions on the surface of the first end 11 in more detail, a plurality of ultrasonic transmission/reception members 4 may be provided, so that the change condition of the biological tissue around the plurality of ultrasonic transmission/reception members 4 may be known, which facilitates more precise adjustment of the pedicle screw inserting direction and more precise and accurate pedicle screw inserting.

When the medical treatment instrument is used, taking a vertebral body operation as an example, a medical worker holds the operating handle 3 by hand, the first tail end 11 of the puncture needle 2, the first end part 9 of the first sleeve 1 and the hollow screw 18 are inserted into the vertebral pedicle of a patient according to the running direction of the vertebral pedicle, the ultrasonic transmitting and receiving end of the ultrasonic transmitting and receiving part 4 transmits an ultrasonic signal and receives an ultrasonic signal reflected by surrounding tissues, the received ultrasonic signal is sent to the calculation and processing module 7, if the signal is a strong signal (the signal is close to cortical bone and the ultrasonic wave is reflected strongly), the calculation and processing module 7 controls the alarm part 8 to give an alarm sound and the LED lamp to change color and flash, and the medical worker can make direction adjustment according to specific prompts. The calculation processing module 7 may also convert the received ultrasonic wave signal into an image signal and send it to the image display section 5, and the image display section 5 presents the ultrasonic image. The doctor can judge the puncture needle inserting direction and make direction adjustment in time according to the image, and can also make direction adjustment after puncture examination. As judged from the scale 17 on the outer side surface of the first sleeve 1, when the first sleeve 1 is brought to a proper depth, the first sleeve 1 is fixed by hand, the operating handle 3 and the puncture needle 2 are removed, then the holding member 19 is fixed by hand (the second sleeve 20 is fixed by hand if the second sleeve 20 is present) to hold the hollow screw 18, then the first end portion 9 is rotated in the opposite direction to the direction of threadedly engaging the hollow screw 18 until the first end portion 9 is axially separated from the hollow screw 18, the first sleeve 1 is removed (the third sleeve 25 is removed together if the third sleeve 25 is present), then the holding member 19 is broken (the second sleeve 20 and the holding member 19 are separated if the second sleeve 20 is present, the second sleeve 20 is removed, the holding member 19 is broken again), and finally the hollow screw 18 is left at a desired position.

Through the intelligent ultrasonic navigation of the device, the accuracy of screw implantation of a fixed instrument in a clinical operation is ensured. Can ensure the safety requirement of the vertebral pedicle screw implantation in the spinal surgery.

Therefore, the invention detects the condition of the biological tissue around the ultrasonic transmitting and receiving component by ultrasonic, controls the alarm according to the intensity of the ultrasonic signal reflected by the biological tissue, converts the ultrasonic signal into an image signal and displays the image signal, so that medical personnel can adjust the image signal in time according to the alarm, thereby ensuring that the pedicle screw is correctly placed without deviation, avoiding causing additional damage to the patient and even endangering the life of the patient.

Therefore, the invention has novel conception, simple structure and convenient use, and an operator can adjust the direction of the pedicle screw entering the bone according to the alarm signal and the image, insert the screw of the fixing instrument and acquire scientific research data. Can better guarantee the safety requirement of clinical operation and has larger application value.

In conclusion, the minimally invasive percutaneous pedicle screw implantation intelligent ultrasonic navigation device can dynamically navigate the pedicle screw implantation process, and once the pedicle screw implantation position is wrong, medical personnel can be reminded to adjust the pedicle screw implantation position, so that the correct implantation of the pedicle screw is ensured, the wrong implantation of the pedicle screw is avoided, extra damage to a patient is reduced, the operation safety is ensured, the step of pedicle opening is cancelled, the operation time is saved, and the minimally invasive percutaneous pedicle screw implantation intelligent ultrasonic navigation device is ingenious in design, simple in structure, simple and convenient to operate, low in manufacturing and maintenance cost, and suitable for large-scale popularization and application.

It will thus be seen that the objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments, and the embodiments may be modified without departing from the principles. Therefore, this invention includes all modifications encompassed within the spirit and scope of the claims.

Claims (10)

1. The intelligent ultrasonic navigation device for minimally invasive percutaneous pedicle screw implantation is characterized by comprising a first sleeve, a puncture needle, an operating handle, an ultrasonic transmitting and receiving component, a power supply control module, a calculation processing module, a hollow screw, a retaining component, an alarm component and/or an image display component, wherein the first sleeve is provided with a first end part and a second end part, the first end part is arranged in the hollow screw in a penetrating manner, the pointed end of the hollow screw is far away from the second end part, the retaining component is positioned outside the first sleeve and arranged along the length direction of the first sleeve, the retaining component is connected with the hollow screw and used for retaining the hollow screw through the retaining component, and the first end part is detachably connected with the hollow screw and is composed of: the first end portion carries the hollow screw along the axis of the first sleeve to move without holding the hollow screw by the holding member, and the first end portion is away from the hollow screw along the axis of the first sleeve to axially separate from the hollow screw with the hollow screw held by the holding member; the puncture needle is provided with a first tail end and a second tail end, the puncture needle is arranged in the first sleeve in a penetrating mode, the first tail end and the second tail end are exposed outside the first end portion and the second end portion respectively, the ultrasonic transmitting and receiving component is arranged in the first tail end, an ultrasonic transmitting and receiving end of the ultrasonic transmitting and receiving component is exposed outside the surface of the first tail end, the ultrasonic transmitting and receiving component is connected with the power supply control module through a circuit to form a detection circuit, the ultrasonic transmitting and receiving component is connected with the computing processing module and used for sending a received ultrasonic signal to the computing processing module, the computing processing module is connected with the alarm component and used for controlling the alarm action of the alarm component according to the strength of the ultrasonic signal, the computing processing module is connected with the image display component and used for converting the ultrasonic signal into an image signal and sending the image signal to the image display component, and the image display component displays a corresponding image according to the image signal;

the puncture needle is detachably connected with the first sleeve, and the operating handle is detachably connected with the second end part; or the puncture needle is detachably connected with the first sleeve or the operating handle is detachably connected with the second end part, and the second tail end is connected with the operating handle.

2. The intelligent ultrasound navigation device for minimally invasive percutaneous pedicle screw placement according to claim 1, wherein the holding member is connected with the hollow screw for circumferentially holding the hollow screw by the holding member, the first end portion is threadedly connected with the hollow screw and is configured to: the first end portion carries the hollow screw along the axis of the first sleeve in a state where the hollow screw is not circumferentially held by the holding member, and rotates about the axis of the first sleeve to be disengaged from the hollow screw and moves away from the hollow screw along the axis of the first sleeve to be axially separated from the hollow screw in a state where the hollow screw is circumferentially held by the holding member.

3. The intelligent ultrasonic minimally invasive percutaneous pedicle screw placement device according to claim 1, wherein the holding member is connected with the hollow screw for axially holding the hollow screw by the holding member, the first end portion is connected with the hollow screw in a clamping manner and is composed of: the first end portion drives the hollow screw to move along the axis of the first sleeve under the condition that the hollow screw is not axially held by the holding component, and the first end portion is far away from the hollow screw along the axis of the first sleeve under the condition that the hollow screw is axially held by the holding component so as to be released from clamping connection with the hollow screw and axially separated from the hollow screw.

4. The intelligent ultrasonic navigation device for minimally invasive percutaneous pedicle screw implantation according to claim 1, wherein the number of the holding parts is two, and the two holding parts are oppositely arranged at intervals.

5. The intelligent minimally invasive percutaneous pedicle screw placement ultrasound navigation device according to claim 1, wherein the holding member is detachably connected to the first sleeve.

6. The intelligent ultrasound navigation device for minimally invasive percutaneous pedicle screw placement according to claim 1, further comprising a second sleeve sleeved outside the first sleeve and located between the first sleeve and the holding member, wherein the second sleeve is connected with the holding member for holding the holding member through the second sleeve.

7. The intelligent ultrasonic minimally invasive percutaneous pedicle screw placement device according to claim 6, wherein the second sleeve is connected with the holding member for circumferentially holding the holding member by the second sleeve, the holding member is connected with the hollow screw for circumferentially holding the hollow screw by the holding member, and the first end is threadedly connected with the hollow screw and configured to: the first end portion carries the hollow screw along the axis of the first sleeve in a state where the hollow screw is not circumferentially held by the holding member, and rotates about the axis of the first sleeve to be disengaged from the hollow screw and moves away from the hollow screw along the axis of the first sleeve to be axially separated from the hollow screw in a state where the hollow screw is circumferentially held by the holding member.

8. The intelligent ultrasound navigation device for minimally invasive percutaneous pedicle screw placement according to claim 6, wherein the second sleeve is connected with the holding member for axially holding the holding member by the second sleeve, the holding member is connected with the hollow screw for axially holding the hollow screw by the holding member, the first end portion is connected with the hollow screw in a clamping manner and is configured to: the first end portion drives the hollow screw to move along the axis of the first sleeve under the condition that the hollow screw is not axially held by the holding component, and the first end portion is far away from the hollow screw along the axis of the first sleeve under the condition that the hollow screw is axially held by the holding component so as to be released from clamping connection with the hollow screw and axially separated from the hollow screw.

9. The intelligent ultrasound navigation device for minimally invasive percutaneous pedicle screw placement according to claim 6, further comprising a third sleeve, wherein the third sleeve is sleeved between the first sleeve and the second sleeve, the third sleeve is rotatably disposed around the axis of the first sleeve and axially limited with respect to the first sleeve, and the end of the third sleeve, close to the second end, axially limited with respect to the second sleeve is used for preventing the second sleeve from moving to the second end along the axis of the first sleeve.

10. The intelligent ultrasound navigation device for minimally invasive percutaneous pedicle screw placement according to claim 6, further comprising a third sleeve sleeved between the first sleeve and the second sleeve, wherein the third sleeve is fixedly connected to the first sleeve, and an end of the third sleeve axially limiting the second sleeve close to the second end is used for preventing the second sleeve from moving along the axis of the first sleeve to the second end.

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