Puncture device

Abstract

The invention relates to a puncture device which comprises a handle, a main control module and a plurality of probes selectively connected to the handle, and the handle is provided with a heat insulation layer; the main control module is arranged in the handle, the main control module comprises an elastic piece electrode, at least part of the elastic piece electrode extends out of the handle, and the elastic piece electrode and the handle are arranged in a sealed mode; a blade part is arranged at the far end of the probe, a detection electrode is arranged on the blade part, and the near end of the probe is detachably connected to the handle so that the detection electrode can be in conductive connection with the elastic sheet electrode. According to the puncture device, the handle can be matched with probes of different specifications, the environment adaptability of the puncture device is improved, the cost is reduced, due to the fact that the handle is provided with the heat insulation layer and the elastic piece electrode is connected with the handle in a sealed mode, the handle can be cleaned and sterilized under the conditions of high temperature and a cleaning solution, and the service life of the puncture device is prolonged. Therefore, the handle only needs to be connected with a proper probe in a matched mode, and repeated use of the puncture device can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a puncture device. Background Art

[0002] Departments such as orthopedics and dentistry usually need to establish a channel in advance before implanting screws in human bones. The channel is usually established based on the doctor's experience, and then tentatively drilled in reference to the general direction of the medical anatomical structure. However, this method of screw implantation has a high risk of screw misplacement. In some complex anatomical positions, the screws will pierce the bone cortex, causing risks such as injury.

[0003] At present, there are two types of tools for opening screw channels on the market: one is the conventional passive puncture needle, and the other is the emerging active probe, which uses the different bioelectrical impedance of the human body to remind the doctor of the position of the probe tip. However, both of the above tools for opening screw channels are disposable. In screw implantation surgery, due to different usage scenarios, more specifications of products are involved, and the cost of using a complete product for each specification is high, which brings great financial pressure to patients. Summary of the invention

[0004] Based on this, it is necessary to provide a puncture device to address the problem that the existing tools for opening screw channels are all disposable.

[0005] A puncture device, comprising a handle, a main control module and a plurality of probes selectively connected to the handle, wherein:

[0006] The handle is provided with a heat insulation layer;

[0007] The main control module is arranged inside the handle, and the main control module includes a spring electrode, and the spring electrode at least partially extends out of the handle, and the spring electrode and the handle are sealed;

[0008] The distal end of the probe is provided with a blade, and a detection electrode is provided on the blade. The proximal end of the probe is detachably connected to the handle so that the detection electrode can be connected to the shrapnel electrode.

[0009] In one embodiment, the handle includes a first shell and a second shell connected to the first shell, and when the first shell is connected to the second shell, a receiving cavity for receiving the main control module is formed between the first shell and the second shell.

[0010] In one embodiment, a first sealing structure is provided at the connection between the first shell and the second shell.

[0011] In one of the embodiments, the first shell is provided with the thermal insulation layer, and / or the second shell is provided with the thermal insulation layer.

[0012] In one of the embodiments, when the first shell is provided with the heat insulation layer, the heat insulation layer is provided on the inner surface of the first shell;

[0013] When the second shell is provided with the heat insulating layer, the heat insulating layer is provided on the inner surface of the second shell.

[0014] In one of the embodiments, the handle is provided with a through hole, the spring electrode is inserted into the through hole, and there is a gap between the spring electrode and the hole wall of the through hole, and a second sealing structure is provided at the gap.

[0015] In one embodiment, the handle is provided with a control switch, and the main control module is provided with a switch key, and the control switch is used to control the on and off of the switch key.

[0016] In one embodiment, the handle is provided with a receiving groove, the control switch is at least partially embedded in the receiving groove and is sealedly connected to the handle, and the outer surface of the control switch does not exceed the outer surface of the handle.

[0017] In one embodiment, the control switch is an elastic member, and the control switch includes a pressing portion and an abutting portion connected to the pressing portion, and the abutting portion is interference-fitted with the groove wall of the accommodating groove;

[0018] The abutting portion is configured to deform toward a direction approaching the switch key in response to being pressed by the pressing portion so as to abut against the switch key.

[0019] In one embodiment, the main control module further includes a control unit, a power supply unit, a resistance measurement unit, a signal processing unit and a warning unit, wherein:

[0020] The control unit is communicatively connected with the power supply unit for controlling the power on and off of the power supply unit. The power supply unit is electrically connected with the resistance measuring unit, the signal processing unit and the warning unit. The resistance measuring unit is communicatively connected with the spring electrode for measuring the size of the electrical impedance signal on the spring electrode. The signal processing unit is communicatively connected with the resistance measuring unit for processing the electrical impedance signal of the resistance measuring unit. The warning unit is communicatively connected with the signal processing unit for characterizing the signal of the signal processing unit.

[0021] In one embodiment, the warning unit includes a light source or a display screen for transmitting a visual signal; or,

[0022] The warning unit includes a motor, which is arranged inside the handle and is used to transmit a tactile signal.

[0023] In one embodiment, the warning unit comprises a speaker, which is sealed to the handle and at least partially protrudes out of the handle; or,

[0024] The warning unit includes a resonance speaker, which is communicatively connected with the signal processing unit. A resonance protrusion is protruded from the inner surface of the handle, a resonance cavity is provided in the resonance protrusion, and the resonance speaker is arranged on the resonance protrusion.

[0025] In one embodiment, the probe comprises an outer core body and an inner core body inserted in the outer core body;

[0026] The outer core body has a first blade portion, and the first blade portion is configured as a cutting blade or a chamfering blade;

[0027] The inner core body has a second blade portion, and the second blade portion is configured as a triangular blade or a bevel blade.

[0028] In one embodiment, the inner core body is detachably inserted into the outer core body.

[0029] In one embodiment, the handle is provided with a quick-insert interface, and the probe can be connected to the handle via the quick-insert interface.

[0030] In the above-mentioned puncture device, the operator holds the handle and pushes the probe into the patient's tissue. The detection electrode on the blade collects the human body's bioelectrical impedance signal and transmits it to the shrapnel electrode. The main control module processes the electrical impedance signal and feeds it back to the operator, so that the operator can adjust the angle and depth position of the probe, thereby improving the safety and reliability of establishing a screw implantation channel on the human bone. In the puncture device provided by the present application, multiple probes can be selectively connected to the handle, so that the handle can be adapted to probes of various specifications, thereby improving the environmental adaptability of the puncture device and reducing costs. In addition, since the handle is provided with a heat insulation layer and the shrapnel electrode is sealed and connected to the handle, the handle can be cleaned and sterilized under high temperature and cleaning solution conditions, so that the handle only needs to be adapted and connected to a suitable probe to achieve the reuse of the puncture device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the structure of the puncture device provided in some embodiments.

[0032] Figure 2 It is a schematic diagram of the exploded view of the puncture device provided in some embodiments.

[0033] Figure 3This is a schematic diagram of an exploded view of a handle provided in some embodiments.

[0034] Figure 4 It is a top view of the puncture device provided in some embodiments.

[0035] Figure 5 for Figure 4 AA section view.

[0036] Figure 6 for Figure 5 A partial enlarged view of area B in the middle.

[0037] Figure 7 It is a top view of the puncture device provided in some embodiments.

[0038] Figure 8 for Figure 7 CC section view.

[0039] Fig. 9 for Figure 8 A partial enlarged view of the E area.

[0040] Fig.10 for Figure 7 Middle DD section view.

[0041] Fig.11 It is a schematic diagram of the structure of the probes provided in some embodiments with blades of different forms.

[0042] Fig.12 This is a schematic diagram of the decomposition of the probe provided in some embodiments.

[0043] Fig.13 It is a schematic diagram of the structure of the probe provided in some embodiments having outer core bodies and inner core bodies in different forms.

[0044] Reference numerals:

[0045] 100. Puncture device;

[0046] 110. handle; 111. first shell; 112. second shell; 113. accommodating cavity; 114. control switch; 1141. pressing portion; 1142. abutting portion; 115. accommodating groove; 116. resonance protrusion; 117. resonance cavity; 120. main control module; 121. spring electrode; 122. switch; 123. resonance horn; 130. probe; 131. blade; 132. outer core body; 1321. first blade; 133. inner core body; 1331. second blade; 134. Luer connector. DETAILED DESCRIPTION

[0047] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0048] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0049] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0051] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0053] The technical solution provided by the embodiments of the present application is described below in conjunction with the accompanying drawings.

[0054] The proximal end mentioned in the present application refers to the end close to the surgical operator, and the distal end refers to the end far away from the surgical operator.

[0055] like Figure 1-Figure 3 As shown, the present application provides a puncture device 100. The puncture device 100 includes a handle 110, a main control module 120, and a plurality of probes 130 of different specifications that can be selectively connected to the handle 110. In the present application, a quick-plug interface is provided on the handle 110, and any probe 130 can be connected to the handle 110 through the quick-plug interface to improve the connection and disassembly efficiency of the probe 130 and the handle 110. The puncture device 100 is used to establish a screw implantation channel on a human bone.

[0056] The main control module 120 is arranged inside the handle 110 by embedding, clamping, etc., so as to realize the installation and fixation of the main control module 120 inside the handle 110. The main control module 120 includes a spring electrode 121, and the spring electrode 121 at least partially extends outside the handle 110, and the spring electrode 121 and the handle 110 are sealed. For example, in this embodiment, the portion of the spring electrode 121 extending outside the handle 110 is sealed with the handle 110. If the handle 110 is to be reused, after the handle 110 completes the operation or before the operation, the handle 110 needs to be placed under high temperature and cleaning solution conditions for cleaning and sterilization. In the traditional puncture device, when the control module is provided in the puncture device, if the puncture device is cleaned and sterilized, the cleaning solution is easy to penetrate into the handle, causing damage to the control module, and the control module is also easy to be damaged under high temperature conditions. In the present application, the handle 110 is provided with a heat insulating layer, and the spring electrode 121 is sealed and connected to the handle 110. When the handle 110 is cleaned and sterilized, the cleaning solution can be prevented from penetrating into the handle 110 to damage the main control module 120. The heat insulating layer isolates the high temperature environment to prevent the main control module 120 from being directly exposed to the high temperature environment and being damaged, thereby realizing the reuse of the puncture device 100.

[0057] A blade 131 is provided at the distal end of the probe 130, and a detection electrode is provided on the blade 131, that is, the blade 131 and the detection electrode are both located at the distal end of the probe 130. For example, a plurality of exposed detection electrodes are provided at the distal end of the probe 130, and the detection electrodes are insulated from each other. The proximal end of the probe 130 is detachably connected to the handle 110 so that the detection electrode can be connected to the shrapnel electrode 121. For example, the detection electrode is connected to the shrapnel electrode 121 through the probe 130 body. The detection electrode can transmit the collected human bioelectrical impedance signal to the shrapnel electrode 121, and the main control module 120 processes the impedance signal and feeds it back to the operator, so that the operator can adjust the angle and depth position of the probe 130, thereby improving the safety and reliability of establishing a screw implantation channel in the human bone. Specifically, when the proximal end of any probe 130 is connected to the handle 110, the blade 131 is located at the end of the probe 130 away from the handle 110. The operator holds the handle 110 and can push the probe 130 into the patient's tissue through the handle 110. During the pushing process of the probe 130, a complete circuit is formed between the puncture device 100 and the patient's tissue. The detection electrode can feed back the human body bioelectrical impedance signal in real time to prompt the operator of the position of the tip of the probe 130, and when the position of the tip of the probe 130 reaches the predetermined target position, the drilling operation is performed on the human bone through the blade 131. In addition, in this embodiment, a plurality of probes 130 of different specifications can be selectively connected to the handle 110, so that the handle 110 can be adapted to a plurality of probes 130 of different specifications, thereby improving the environmental adaptability of the puncture device 100 and reducing costs.

[0058] In one embodiment, if Figure 3-Figure 5 As shown, the handle 110 includes a first shell 111 and a second shell 112, and the second shell 112 is connected to the first shell 111. In addition, when the first shell 111 and the second shell 112 are connected, a receiving cavity 113 is formed between the first shell 111 and the second shell 112, and the receiving cavity 113 is used to accommodate the main control module 120, so that the main control module 120 is arranged inside the handle 110. Preferably, the second shell 112 is detachably connected to the first shell 111 by means of snap connection, screw connection, etc. When the main control module 120 is damaged, the main control module 120 can be taken out from the handle 110 by releasing the connection between the first shell 111 and the second shell 112, so as to repair or replace the main control module 120.

[0059] Furthermore, if Figure 2 , Figure 3 and Figure 5 As shown, a first sealing structure is provided at the connection between the first shell 111 and the second shell 112, so that when the handle 110 is cleaned, the first sealing structure can prevent the cleaning solution from penetrating into the handle 110 through the gap between the first shell 111 and the second shell 112, thereby protecting the main control module 120. In this embodiment, the first sealing structure is a sealing ring provided at the connection between the first shell 111 and the second shell 112. Of course, in other feasible embodiments, the first shell 111 and the second shell 112 can also be sealed by ultrasonic welding, or the first shell 111 and the second shell 112 can be sealed by waterproof adhesive / point adhesive bonding.

[0060] In order to prevent the main control module 120 from being damaged by being directly exposed to a high temperature environment, in one embodiment, Figure 2 , Figure 3 and Figure 5As shown, the first shell 111 is provided with a heat insulation layer, and / or the second shell 112 is provided with a heat insulation layer, and the heat insulation layer can isolate the high temperature environment of sterilization to prevent the main control module 120 from being directly exposed to the high temperature environment and being damaged. In other words, in one embodiment, the thermal insulation layer is only provided on the first shell 111. In this case, the main control module 120 can be provided close to the first shell 111, and the thermal insulation layer on the first shell 111 can protect the main control module 120; in another embodiment, the thermal insulation layer is only provided on the second shell 112. In this case, the main control module 120 can be provided close to the second shell 112, and the thermal insulation layer on the second shell 112 can protect the main control module 120; in yet another embodiment, thermal insulation layers are provided on both the first shell 111 and the second shell 112. In this case, the main control module 120 only needs to be provided inside the handle 110, so that the main control module 120 will not be directly exposed to the high temperature environment during the sterilization operation of the handle 110, thereby protecting the main control module 120.

[0061] Furthermore, if Figure 2 , Figure 3 and Figure 5 As shown, when the first shell 111 is provided with a heat-insulating layer, the heat-insulating layer is provided on the inner surface of the first shell 111, such as the heat-insulating layer is a heat-insulating coating covering the inner surface of the first shell 111, and the heat-insulating coating may be a composite magnesium-silicon-aluminum coating, a rare earth thermal insulation coating, etc. In the present application, since the handle 110 needs to be reused, the handle 110 is prone to collision with other instruments during use. The heat-insulating layer is provided on the inner surface of the first shell 111 to prevent the heat-insulating layer provided on the first shell 111 from being knocked off during use, so as to protect the heat-insulating layer provided on the first shell 111 and extend the service life of the heat-insulating layer provided on the first shell 111. Similarly, when the second shell 112 is provided with a heat-insulating layer, the heat-insulating layer is provided on the inner surface of the second shell 112, such as the heat-insulating layer is a heat-insulating coating covering the inner surface of the second shell 112, and the heat-insulating coating may be a composite magnesium-silicon-aluminum coating, a rare earth thermal insulation coating, etc. It can also prevent the heat insulation layer disposed on the second shell 112 from being bumped and falling off during use, thereby protecting the heat insulation layer disposed on the second shell 112 and extending the service life of the heat insulation layer disposed on the second shell 112.

[0062] In order to prevent the cleaning solution from penetrating into the handle 110 and causing damage to the main control module 120, in one embodiment, Figure 2 and Figure 3As shown, the handle 110 is provided with a through hole. The spring electrode 121 is inserted into the through hole, and when the spring electrode 121 is inserted into the through hole, there is a gap between the spring electrode 121 and the inner wall of the through hole, and a second sealing structure is provided at the gap between the spring electrode 121 and the inner wall of the through hole. When the handle 110 is cleaned, the second sealing structure can prevent the cleaning solution from penetrating into the handle 110 through the gap between the spring electrode 121 and the inner wall of the through hole to cause damage to the main control module 120, thereby realizing the reuse of the puncture device 100.

[0063] Among them, in this embodiment, the second sealing structure is a sealing ring arranged at the gap between the spring electrode 121 and the inner wall of the through hole. Of course, in other feasible embodiments, the gap between the spring electrode 121 and the inner wall of the through hole is filled with sealant, or the spring electrode 121 is directly injection molded on the handle 110, which can also achieve a sealed connection between the spring electrode 121 and the handle 110. The specific form of the second sealing structure is not limited in this application.

[0064] In order to control whether the main control module 120 works or not, in one embodiment, Figure 2 , Figure 3 and Figure 6 As shown, the handle 110 is provided with a control switch 114, and the main control module 120 is provided with a switch key 122, the switch key 122 is used to control whether the main control module 120 works or not, and the control switch 114 is used to control the on and off of the switch key 122. As in the present embodiment, when the puncture device 100 is in the process of establishing a screw implantation channel on a human bone, the control switch 114 controls the switch key 122 to switch the main control module 120 to a working state, so as to prompt the operator of the position of the tip of the probe 130 during the insertion process of the probe 130, and when the position of the tip of the probe 130 reaches a predetermined target position, the drilling operation is performed on the human bone through the blade 131. On the contrary, when the puncture device 100 is completed in the operation of establishing a screw implantation channel on a human bone, the control switch 114 controls the switch key 122 to switch the main control module 120 to a shutdown state, thereby reducing the power consumption of the main control module 120 and improving the service life of the puncture device 100.

[0065] Specifically, Figure 2 , Figure 3 and Figure 6As shown, the handle 110 is provided with a receiving groove 115. The control switch 114 is at least partially embedded in the receiving groove 115, so that the control switch 114 is set on the handle 110, and the control switch 114 of the handle 110 is sealed and connected with the handle 110, such as a sealing ring is provided at the connection between the handle 110 and the control switch 114, or a sealant is filled at the connection between the handle 110 and the control switch 114, so as to achieve a sealed connection between the control switch 114 and the handle 110, and when the handle 110 is cleaned, the cleaning solution is prevented from penetrating into the inside of the handle 110 through the gap between the control switch 114 and the handle 110 to damage the main control module 120. In addition, the outer surface of the control switch 114 does not exceed the outer surface of the handle 110, that is, the control switch 114 is set on the handle 110 in a recessed manner, so as to prevent the operator from accidentally touching the control switch 114 during use, resulting in the autonomous operation of the main control module 120.

[0066] Furthermore, if Figure 2 , Figure 3 and Figure 6 As shown, the control switch 114 is an elastic member. For example, in the present embodiment, the control switch 114 is formed by injection molding of flexible materials such as plastic and silicone. The control switch 114 includes a pressing portion 1141 and an abutting portion 1142. The abutting portion 1142 is connected to the pressing portion 1141. Preferably, the pressing portion 1141 and the abutting portion 1142 are integrally formed by injection molding to simplify the molding process of the control switch 114 and save the manufacturing cost of the control switch 114. The abutting portion 1142 is interference fit with the groove wall of the accommodating groove 115, such as the side wall of the abutting portion 1142 abuts against the groove wall of the accommodating groove 115, so as to perform a double seal between the control switch 114 and the handle 110, further preventing the cleaning solution from penetrating into the interior of the handle 110 to damage the main control module 120, thereby ensuring the safety of the handle 110 during the cleaning operation. Among them, in one of the embodiments, as Figure 5 and Figure 6 As shown, the control switch 114 is a T-shaped structure as a whole, the large end of the control switch 114 is a pressing portion 1141, and the small end of the control switch 114 is a contact portion 1142. In another embodiment, as Figure 7-Figure 9 As shown, the control switch 114 is an I-shaped structure as a whole, and the two ends of the control switch 114 are respectively clamped on the outer surface and the inner surface of the first shell 111 to fix the control switch 114 on the handle 110. The middle section of the control switch 114 is interference fit with the groove wall of the accommodating groove 115 to seal the control switch 114 and the handle 110.

[0067] In the puncture device 100, the abutment portion 1142 is configured to deform in a direction close to the switch key 122 in response to the pressing of the pressing portion 1141, so as to abut against the switch key 122. Specifically, when the pressing portion 1141 is pressed, since the abutment portion 1142 can be elastically deformed, the abutment portion 1142 is deformed and abuts against the switch key 122, and the main control module 120 is switched to the working state, so as to prompt the operator of the position of the tip of the probe 130 during the pushing process of the probe 130, and when the position of the tip of the probe 130 reaches the predetermined target position, the drilling operation is performed on the human bone through the blade 131. On the contrary, when the pressing force on the pressing portion 1141 is removed, the abutment portion 1142 is elastically reset and separated from the switch key 122, so as to switch the main control module 120 to the shutdown state.

[0068] In order to feed back the human body bioelectrical impedance signal collected by the detection electrode to the operator, in one embodiment, Figure 2 and Figure 3 As shown, the main control module 120 also includes a control unit, a power supply unit, a resistance measuring unit, a signal processing unit and an alarm unit. Among them, the control unit is connected in communication with the power supply unit, and the control unit is used to control the power on and off of the power supply unit. For example, in the present embodiment, when the control unit senses the action of the switch key 122, the control unit executes the action of controlling the power on and off of the power supply unit. The power supply unit and the resistance measuring unit, the signal processing unit and the alarm unit are connected in communication with each other, so that when the human bioelectrical impedance signal collected by the detection electrode needs to be processed, the power supply unit supplies power to the resistance measuring unit, the signal processing unit and the alarm unit to drive the work of the resistance measuring unit, the signal processing unit and the alarm unit. The resistance measuring unit is connected in communication with the shrapnel electrode 121, and is used to measure the size of the electrical impedance signal on the shrapnel electrode 121. The signal processing unit is connected in communication with the resistance measuring unit, and is used to process the electrical impedance signal of the resistance measuring unit. The warning unit is communicatively connected with the signal processing unit, and the warning unit is used to characterize the signal of the signal processing unit. For example, in the present application, the warning unit can use signals such as light, sound, screen display, and vibration that are easily perceived by the operator to characterize the signal of the signal processing unit, so that the operator can timely grasp the information such as the angle and depth position of the probe 130 in the patient's tissue.

[0069] In the above-mentioned puncture device 100, the operator holds the handle 110 and pushes the spring needle into the patient's tissue. The detection electrode on the blade 131 collects the human body's bioelectrical impedance signal and transmits it to the spring electrode 121. The spring electrode 121 can transmit the bioelectrical impedance signal of each area of ​​the human body during the pushing process of the probe 130 to the resistance measuring unit. The resistance measuring unit measures the size of the electrical impedance signal on the spring electrode 121 and further feeds it back to the signal processing unit. After being processed by the signal processing unit, the signal is represented by light, sound, screen display, vibration and other signals through the warning unit, so that the operator can timely grasp the angle and depth position of the probe 130 in the patient's tissue and other information, so that the operator can adjust the angle and depth position of the probe 130, thereby improving the safety and reliability of establishing a screw implantation channel on the human bone.

[0070] In one embodiment, if Figure 2 and Figure 3 As shown, the warning unit includes a light source or a display screen, which is used to transmit visual signals and feed back the visual signals to the user, so that the user can timely grasp the information such as the angle and depth position of the probe 130 in the patient's tissue. If the warning unit includes a light source, the light source is directly welded to the handle 110. When the probe 130 has not reached the operating position, the light source can emit a light source of a certain specific color, and when the probe 130 reaches the predetermined target position, the light source emits a light source of another specific color to prompt the operator to perform drilling operations at this position. For another example, when the warning unit includes a display screen, the display screen can be set on the handle 110, and the display screen can display the information such as the angle and depth position of the probe 130 in real time, and when the probe 130 reaches the predetermined target position, the operator performs drilling operations at this position.

[0071] In another embodiment, if Figure 2 and Figure 3 As shown, the warning unit includes a motor. The motor is disposed inside the handle 110, such as by screwing, embedding, etc., to achieve the installation and fixation of the motor, and during the cleaning operation of the handle 110, since the motor is disposed inside the handle 110, the motor will not be damaged by the influence of the cleaning solution. The motor is used to transmit tactile signals. For example, when the probe 130 reaches the predetermined target position, the motor is activated and drives the handle 110 to vibrate, and the vibration signal is directly fed back to the operator through the handle 110, prompting the operator that the probe 130 has reached the predetermined target position and drilling operations can be performed at this position.

[0072] In another embodiment, Figure 2 and Figure 3As shown, the warning unit can also characterize the signal processed by the signal processing unit in the form of a sound signal. In one embodiment, the warning unit includes a speaker, and the speaker is sealed and connected to the handle 110, such as by gluing, adhering waterproof adhesive, etc., and the speaker has waterproof performance, such as using a waterproof speaker, so that during the cleaning operation of the handle 110, the speaker will not be damaged by the influence of the cleaning solution, and at least part of the speaker protrudes to the outside of the handle 110. Compared with the built-in setting of the speaker, the speaker at least partially protrudes to the outside of the handle 110. When the probe 130 reaches the predetermined target position, the sound signal prompt of the warning unit is more obvious. In another embodiment, continue to refer to Fig.10 As shown, the warning unit includes a resonance speaker 123, which is in communication connection with the signal processing unit. A resonance protrusion 116 is protruded from the inner surface of the handle 110, and a resonance cavity 117 is provided in the resonance protrusion 116. The resonance speaker 123 is arranged on the resonance protrusion 116. If the resonance speaker 123 is arranged on the resonance surface of the resonance protrusion 116 and the resonance speaker 123 is located inside the handle 110, the resonance speaker 123 will not be damaged by the influence of the cleaning solution. The warning unit is set as the resonance speaker 123. Compared with ordinary speakers, the resonance speaker 123 does not need to open a sound channel on the handle 110 to transmit sound signals, which is conducive to the waterproof design of the handle 110. When the probe 130 reaches the predetermined target position, the signal processed by the signal processing unit is fed back to the resonance speaker 123. The resonance speaker 123 vibrates on the resonance protrusion 116 and drives the handle 110 as a whole to make a sound, so as to feed back the angle and position information of the probe 130 to the operator in the form of a sound signal, prompting the operator that the probe 130 has reached the predetermined target position and drilling operations can be performed on the human bone.

[0073] It should be noted that the warning unit is not limited to the signal representation method and component selection form provided in the above embodiments, and other components capable of representing the signal can also be selected according to operator needs. This application does not impose any restrictions on the signal representation method and component selection form of the warning unit.

[0074] In order to improve the adaptability of the puncture device 100 to the environment, in one embodiment, Figure 2 and Fig.11 As shown, the blade 131 is spiral, prism-shaped or conical, so as to provide a variety of probes 130 of different specifications to be connected to the handle 110, so as to adapt to the establishment of screw implantation channels in a variety of different surgical environments. Specifically, the blade 131 can be set as a straight edge blade or a curved edge blade, such as Fig.11 (a) with Fig.11 As shown in (b), the blade 131 can also be set as a spiral blade, as shown in FIG. Fig.11As shown in (c), the blade 131 can be set as a split tapered blade or a split straight blade. Fig.11 (d) with Fig.11 The present application does not limit the specific form of the blade 131, and the probe 130 suitable for the surgical environment can be selected according to the operator's needs.

[0075] In one embodiment, if Figure 2 and Fig.12 As shown, the probe 130 includes an outer core body 132 and an inner core body 133, wherein the inner core body 133 is inserted into the outer core body 132. The outer core body 132 has a first blade 1321, and the first blade 1321 is configured as a cutting blade or a chamfering blade. Fig.13 (a) with Fig.13 As shown in (b), the inner core body 133 has a second blade portion 1331, and the second blade portion 1331 is configured as a triangular blade or a bevel blade. Fig.13 (c) with Fig.13 In the puncture device 100, the probe 130 is configured as a split structure, and the first blade 1321 and the second blade 1331 have more combinations, which is conducive to the diversified design of the blade 131 of the probe 130 to meet the diverse needs of the surgical environment.

[0076] It should be noted that the first blade 1321 and the second blade 1331 are not limited to the blade forms provided above. According to the operator's needs, a probe 130 with a specific blade form can be selected and connected to the handle 110 to establish a screw implantation channel on the human bone.

[0077] Furthermore, if Figure 2 and Fig.12 As shown, the inner core body 133 is detachably inserted into the outer core body 132. In this embodiment, the inner core body 133 is detachably connected to the outer core body 132 by screwing. For example, the inner core body 133 is connected to the outer core body 132 by a Luer connector 134, which facilitates the removal and installation of the inner core body 133 on the outer core body 132 to meet the needs of a variety of surgical environments. For example, when the probe 130 is pushed into the patient's tissue, the inner core body 133 can be removed from the outer core body 132. In this way, the outer core body 132 is still inserted into the patient's tissue and forms a channel, which can be used as a channel for balloon, Kirschner wire and bone cement perfusion.

[0078] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A puncture device, characterized in that: The puncture device comprises a handle, a main control module and a plurality of probes which can be selectively connected to the handle, wherein: The handle is provided with a heat insulation layer; The main control module is arranged inside the handle, and the main control module includes a spring electrode, and the spring electrode at least partially extends out of the handle, and the spring electrode and the handle are sealed; The distal end of the probe is provided with a blade, and a detection electrode is provided on the blade. The proximal end of the probe is detachably connected to the handle so that the detection electrode can be connected to the shrapnel electrode.

2. The puncture device according to claim 1, characterized in that: The handle includes a first shell and a second shell connected to the first shell, and when the first shell is connected to the second shell, an accommodating cavity for accommodating the main control module is formed between the first shell and the second shell.

3. The puncture device according to claim 2, characterized in that: A first sealing structure is provided at the connection between the first shell and the second shell.

4. The puncture device according to claim 2, characterized in that: The first shell is provided with the heat insulation layer, and / or the second shell is provided with the heat insulation layer.

5. The puncture device according to claim 4, characterized in that: When the first shell is provided with the heat insulating layer, the heat insulating layer is provided on the inner surface of the first shell; When the second shell is provided with the heat insulating layer, the heat insulating layer is provided on the inner surface of the second shell.

6. The puncture device according to claim 1, characterized in that: The handle is provided with a through hole, the spring electrode is inserted into the through hole, and there is a gap between the spring electrode and the hole wall of the through hole, and a second sealing structure is provided at the gap.

7. The puncture device according to claim 1, characterized in that: The handle is provided with a control switch, and the main control module is provided with a switch key, and the control switch is used to control the on and off of the switch key.

8. The puncture device according to claim 7, characterized in that: The handle is provided with a receiving groove, the control switch is at least partially embedded in the receiving groove and is sealedly connected to the handle, and the outer surface of the control switch does not exceed the outer surface of the handle.

9. The puncture device according to claim 8, characterized in that: The control switch is an elastic member, comprising a pressing portion and an abutting portion connected to the pressing portion, wherein the abutting portion is interference-fitted with the groove wall of the accommodating groove; The abutting portion is configured to deform toward a direction approaching the switch key in response to being pressed by the pressing portion so as to abut against the switch key.

10. The puncture device according to claim 1, characterized in that: The main control module also includes a control unit, a power supply unit, a resistance measurement unit, a signal processing unit and an alarm unit, wherein: The control unit is communicatively connected with the power supply unit for controlling the power on and off of the power supply unit. The power supply unit is electrically connected with the resistance measuring unit, the signal processing unit and the warning unit. The resistance measuring unit is communicatively connected with the spring electrode for measuring the size of the electrical impedance signal on the spring electrode. The signal processing unit is communicatively connected with the resistance measuring unit for processing the electrical impedance signal of the resistance measuring unit. The warning unit is communicatively connected with the signal processing unit for characterizing the signal of the signal processing unit.

11. The puncture device according to claim 10, characterized in that: The warning unit includes a light source or a display screen for transmitting a visual signal; or, The warning unit includes a motor, which is arranged inside the handle and is used to transmit a tactile signal.

12. The puncture device according to claim 10, characterized in that: The warning unit includes a speaker, which is sealed to the handle and at least partially protrudes out of the handle; or, The warning unit includes a resonance speaker, which is communicatively connected with the signal processing unit. A resonance protrusion is protruded from the inner surface of the handle, a resonance cavity is provided in the resonance protrusion, and the resonance speaker is arranged on the resonance protrusion.

13. The puncture device according to claim 1, characterized in that: The probe comprises an outer core body and an inner core body inserted in the outer core body; The outer core body has a first blade portion, and the first blade portion is configured as a cutting blade or a chamfering blade; The inner core body has a second blade portion, and the second blade portion is configured as a triangular blade or a bevel blade.

14. The puncture device according to claim 13, characterized in that: The inner core body is detachably inserted into the outer core body.

15. The puncture device according to claim 1, characterized in that: The handle is provided with a quick-insertion interface, and the probe can be connected to the handle via the quick-insertion interface.

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