Mammary gland puncture ultrasonic knife

Abstract

The invention discloses a mammary gland puncture ultrasonic knife which is composed of a disposable ultrasonic operation knife and a repeatedly-used ultrasonic operation knife handle, and the ultrasonic operation knife handle further comprises a repeatedly-used transducer. Wherein the cutter collecting bin, the transmission structure and other structures have anti-locked-rotor and anti-tripping design, the problems that the sampling mode may fail, the sampling process is not beneficial to operation and the like are solved, the whole closed negative pressure system is adopted, negative pressure connection is firmer, and the sealing performance is better ensured; the sealing problem of the ultrasonic surgical knife rod and the ultrasonic surgical knife is effectively solved. Sampling tissues are automatically stored, so that the sampling process is safer, and secondary pollution caused by the fact that an open type sampling groove needs to be adopted in the sampling mode is avoided; and a hidden type buckle position capable of being released is adopted, plugging and unplugging are convenient, quick replacement is facilitated, therefore, convenient, fast and effective automatic continuous ultrasonic cutting sampling is achieved, and the problems possibly occurring in various manual operations in tubular ultrasonic breast biopsy treatment are solved.

Description

Technical Field

[0001] The invention relates to the field of medical instruments, and in particular to a breast puncture ultrasonic knife, which consists of a disposable ultrasonic surgical knife and a reusable ultrasonic surgical knife handle, wherein the reusable ultrasonic surgical knife handle also includes a reusable transducer. Background Art

[0002] For common breast diseases such as multiple breast fibroids and breast nodules, minimally invasive puncture surgery is generally used, that is, a minimally invasive breast puncture rotary cutter is used to sample breast lesions and partially or completely remove abnormal tissue. Its advantages are: (1) Effective, it can easily remove and collect breast lesions; (2) Convenient, the operation time is short, and no hospitalization is required; (3) Safe, the surgical incision is small, and the healing time is short. In other open and laparoscopic surgeries, ultrasonic scalpels are now commonly used instead of electric scalpels to remove lesions. The principle of ultrasonic scalpels is to use an ultrasonic frequency generator to make the metal blade vibrate mechanically at an ultra-high frequency, so that water molecules in the tissue are vaporized, protein hydrogen bonds are broken, cells are disintegrated, tissues are cut or coagulated, and blood vessels are closed. Its advantages are: (1) Effective, it can accurately cut diseased tissue, including harder calcified tissue and fascia tissue, with little thermal damage and fast healing; (2) Convenient, with less smoke and less eschar, making the surgical field clear, the cutting speed is faster, and the operation time is shorter; (3) Safe, no electric current passes through the human body, and there is less bleeding.

[0003] At present, minimally invasive breast puncture rotary cutting knives all use the principle of mechanical shearing, which has extremely high requirements for the blade and the matching clearance, and is difficult to manufacture. As a result, it is easy to cause the tip of the knife to not penetrate into the tissue when cutting the tissue, and there are problems such as continuous cutting, clamping, pulling, uneven cutting edges and incomplete cutting, which in turn causes the wound to be difficult to heal, especially the problem that it is difficult to separate and cut hard calcified tissues and the fascia tissue that is easy to slide and difficult to cut is easy to slide, and it is difficult to locate and cut and separate. In addition, based on the principle of cold knife cutting, bleeding will inevitably occur during surgery, which is not conducive to the doctor to observe the cutting situation in time. Therefore, patents (2023112624700 and 202311603116X) propose a breast puncture ultrasonic scalpel, which aims to solve the problems of continuous cutting, clamping, pulling, uneven cutting edges and incomplete cutting of the current minimally invasive breast puncture rotary cutting knives in principle, the wound is difficult to heal, the hard calcified tissue is difficult to separate and cut, and the fascia tissue that is easy to slide and difficult to cut is easy to slide, and it is difficult to locate and cut and separate, and the cold knife bleeding problem. The ultrasonic knife principle is used to quickly and accurately cut tissues. There is no problem of being unable to cut, unable to cut, or difficult to cut, and the amount of bleeding is relatively small. However, this solution also has the following obvious shortcomings: (1) This solution uses a fully enclosed built-in transducer. Once the transducer fails during the sampling process, the only option is to replace the tool, and the transducer cannot be replaced at any time; (2) This solution uses an integrated transmission + drive structure, which requires a large space, resulting in the tool being too large as a whole, and is not suitable for people with smaller hands to hold and operate; (3) This solution uses a motor to directly control the position of the ultrasonic knife rod (including the initial position and the end position), which has high requirements on the motor performance. Once the motor control fails during operation, the tool will be directly damaged, and even the motor will be damaged, resulting in high maintenance costs. (4) In this solution, a limit rod is required to complete the connection between the transducer and the ultrasonic knife rod, and the operation is relatively cumbersome. Summary of the invention

[0004] The purpose of the present invention is to provide a breast puncture ultrasonic scalpel with a simple structure and easy operation, which solves the problems of the inability to replace the transducer at any time, poor universality of holding operation, high tool maintenance cost, and complicated tool operation in ultrasonic surgical knives, thereby achieving low cost, high reliability and convenient operation of the ultrasonic surgical knife.

[0005] The technical solution adopted by the present invention to solve the technical problem is:

[0006] A breast puncture ultrasonic knife, which consists of a disposable ultrasonic surgical knife and a reusable ultrasonic surgical knife handle. The reusable ultrasonic surgical knife handle also includes a reusable transducer:

[0007] The disposable ultrasonic surgical tool comprises an upper tool shell, a lower tool shell, a tool collection bin, a tracheal limit plate, a needle tube structure, and a transmission structure. The needle tube structure comprises a puncture needle tube, an air-inflation needle tube, an ultrasonic knife rod, an air-inflation tube joint seat, an air-inflation tube joint seat cover, a tracheal joint, a cutting baffle, and a needle tip, and is used for puncturing tissue, cutting tissue, and transporting tissue.

[0008] The front end of the ultrasonic surgical knife bar is provided with a chamfered edge for cutting tissue; the end of the ultrasonic knife bar is provided with a threaded hole for connecting the transducer to achieve ultrasonic cutting and connecting the transducer. The ultrasonic knife bar adopts a half-cut hollow tube structure. During operation, the entire ultrasonic knife bar will undergo high-frequency periodic vibration. In order to avoid oscillation failure or breakage of the ultrasonic surgical knife bar, it cannot touch any metal during use. According to the simple harmonic vibration characteristics, the wave nodes on the knife bar that do not vibrate are found by combining harmonic response analysis and actual verification, and support rings and sealing rings are generated at these nodes by encapsulation technology.

[0009] The transmission structure includes an internally threaded transmission gear, an externally threaded transmission sleeve rod, a transmission fixing rod, a spring, a gasket, a retaining spring, a limit support, and a positioning pin, which are used to ensure horizontal movement of the ultrasonic knife rod during operation to avoid rotation, and facilitate the connection between the ultrasonic knife rod and the transducer.

[0010] The disposable ultrasonic surgical tool installation steps include:

[0011] 1. Fix the air supply pipe and negative pressure pipe into the groove of the tool upper shell with glue, reserve a section of air pipe at both ends of the air pipe, then pass the air supply pipe and negative pressure pipe through the air supply pipe hole and negative pressure pipe hole in the tool upper shell, and press the air pipe limit plate into the tool upper shell.

[0012] 2. Assemble the transmission structure, that is, first insert the spring, external thread transmission sleeve rod, spring, and gasket into the transmission fixed rod in sequence, and then fix the retaining ring into the groove on the transmission fixed rod to ensure that the external thread transmission sleeve rod can move freely forward and backward, and automatically return to the middle position under the elastic force of the springs at both ends.

[0013] 3. Insert the ultrasonic knife rod with support ring and sealing ring and the limit support into the transmission fixed rod. Make the locating pin hole on the ultrasonic knife rod, the locating pin hole of the limit support and the locating pin hole of the transmission fixed rod concentric, and then insert the locating pin with rubber coating, so that the limit support and the ultrasonic knife rod can move synchronously.

[0014] 4. Install the internal thread transmission gear into the corresponding position on the trachea limit plate, then insert the external thread transmission sleeve into the internal thread transmission gear, and pass the ultrasonic knife rod through the hole in the upper shell of the tool. At the same time, install the internal thread transmission gear and the limit support into the corresponding slots on the trachea limit plate respectively.

[0015] 5. Assemble the needle tube structure, that is, first connect the air supply pipe joint seat and the air supply pipe joint seat cover with glue, and then fix them to the designated position of the puncture and air supply combined needle tube (that is, the puncture needle tube and the air supply needle tube are connected together by welding), seal the two ends with glue, and then fix the air pipe joint in the negative pressure hole of the air supply pipe joint seat and the upper shell of the tool respectively.

[0016] 6. Fix the cutting baffle on the needle tip, and then weld the needle tip to the puncture and gas-infusing combined needle tube. After the puncture and gas-infusing combined needle tube passes through the hole of the upper shell of the tool to the specified position, the contact points of the hole at both ends of the upper shell of the tool are sealed and fixed with glue. At this time, the ultrasonic knife rod with the support ring and the sealing ring is inserted into the puncture needle tube, and there is a certain gap between the outer wall of the ultrasonic knife rod and the inner wall of the puncture needle tube to ensure that the ultrasonic knife rod does not touch the inner wall of the puncture needle tube when it moves. At the same time, the support ring and the sealing ring on the ultrasonic knife rod play both the role of auxiliary support and the role of sealing.

[0017] 7. First cut the air supply pipe and negative pressure pipe of appropriate length, connect one end of them to the air pipe joint, and then connect the lower shell of the tool with the upper shell of the tool through the pin and buckle. Fix the sealing ring into the groove of the upper shell of the tool with glue, and connect the tool collection bin with the upper shell of the tool through the buckle.

[0018] The reusable ultrasonic surgical knife handle includes an upper handle shell, a lower handle shell, a driving structure, a PCBA board, a button, a light guide column, an insert, a wire tail sleeve, etc. The driving structure includes an encoder motor, a motor gear, and a motor compartment cover, which is used to drive the ultrasonic knife rod to drive the transducer to move after the transducer is connected to the ultrasonic knife rod.

[0019] The installation of the reusable ultrasonic surgical knife handle comprises the following steps:

[0020] 1. Assemble the drive structure, that is, first fix the motor gear to the encoder motor output shaft, then put the encoder motor into the groove of the lower shell of the tool handle, and fix the motor compartment cover on the lower shell of the tool handle with screws.

[0021] 2. Assemble the upper shell of the knife handle. First, fix the button to the corresponding position of the upper shell of the knife handle with glue, then fix the light guide column and PCBA board to the upper shell of the knife handle with screws, and then fix the wire tail sleeve to the tail hole of the upper shell of the knife handle, and then lead the power cord out of the wire tail sleeve.

[0022] 3. Use screws to connect and fix the upper shell of the handle and the lower shell of the handle.

[0023] The reusable transducer comprises a connecting rod and a power cord, etc., wherein the front end of the connecting rod is provided with a thread for connecting with an ultrasonic knife rod.

[0024] The breast puncture ultrasonic knife installation comprises the following steps:

[0025] 1. Align the insert block of the ultrasonic surgical tool and insert it into the socket of the ultrasonic surgical tool handle, and then fasten the ultrasonic surgical tool and the ultrasonic surgical tool handle with a buckle.

[0026] 2. Place the transducer into the tail end hole after the ultrasonic surgical tool and the ultrasonic surgical tool handle are connected and fixed, and rotate until it is tightened.

[0027] Compared with the prior art, the present invention has the following advantages and effects:

[0028] (1) This design uses a semi-enclosed external transducer, which allows the transducer to be replaced at any time, avoiding the problem of being unable to replace the transducer at any time due to the use of a fully enclosed internal transducer.

[0029] (2) This design adopts a split transmission + drive structure, which does not require a large space. The overall design of the tool is compact and suitable for all types of people to hold and operate, avoiding the poor universality of holding and operation caused by the use of an integral transmission structure that results in a larger tool.

[0030] (3) The transmission structure in this design has anti-jamming and anti-disengagement designs, which have low requirements for the motor and low maintenance costs. Anti-jamming means that when the ultrasonic knife rod moves to the initial position and the end position, the encoder motor continues to rotate forward, and the ultrasonic knife rod cannot continue to move due to the failure of the spiral screwing; anti-disengagement means that when the ultrasonic knife rod moves to the initial position and the end position, the spring automatically compresses to provide reverse preload, and when the encoder motor rotates in the reverse direction, it ensures that the thread screwing is effective and the ultrasonic knife rod can move normally. In order to achieve the above, the same variable pitch design is mainly used at both ends of the external thread in the external thread transmission sleeve and the internal thread of the internal thread transmission gear. The same pitch is to ensure that the internal and external threads can be screwed normally at any time, and the variable pitch is to ensure that the spring can be quickly and automatically compressed to eliminate the axial clearance.

[0031] (4) In this design, the connection between the transducer and the ultrasonic knife rod can be achieved by only rotating the transducer, which is easy to operate and avoids the need to use a limit rod to connect the transducer and the ultrasonic knife rod.

[0032] (5) In this design, the connection between the tool collection bin and the tool adopts a hidden detachable buckle, which is easy to plug and unplug and facilitates quick replacement, avoiding the possible inconvenience in the use of the tool due to the use of a protruding buckle in the connection between the tool collection bin and the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the cross-sectional structure of a surgical knife rod of a breast puncture ultrasonic knife;

[0034] Figure 2 It is a schematic diagram of the ultrasonic knife bar structure;

[0035] Figure 3 It is a schematic diagram of the structure of a tool upper shell and a tool lower shell;

[0036] Figure 4 It is a schematic diagram of the cross-sectional structure of a tool upper shell and a tool lower shell;

[0037] Figure 5 It is a schematic diagram of the side cross-section structure of a tool upper shell and a tool lower shell;

[0038] Figure 6 A schematic diagram of the initial state of cutting and sampling of a needle tube structure;

[0039] Figure 7 A schematic diagram of a needle tube structure in a state where cutting and sampling are completed;

[0040] Figure 8 It is a schematic diagram of the structure of a knife handle upper shell and a knife handle lower shell;

[0041] Fig. 9 It is a schematic diagram of the cross-sectional structure of a handle upper shell and a handle lower shell;

[0042] Fig.10 The figure is a schematic diagram of the side structure of a transducer body.

[0043] Fig.11 A schematic diagram of the assembly of a breast puncture ultrasonic knife;

[0044] Fig.12 A schematic diagram of the decomposition of a breast puncture ultrasonic knife;

[0045] Fig.13 A schematic diagram of a breast puncture ultrasonic knife from the side;

[0046] Fig.14 A schematic diagram of a breast puncture ultrasonic knife from the side;

[0047] Fig.15 A top view of a breast puncture ultrasonic knife;

[0048] Fig.16 This is a front view of a breast puncture ultrasonic knife;

[0049] in,

[0050] 1-ultrasonic surgical tool; 10-tool upper shell; 100-release button; 101-air supply pipe hole; 102-negative pressure pipe hole; 11-tool lower shell; 110-socket; 111-clip; 12-tool collection bin; 13-trachea limit plate; 14-sealing ring;

[0051] 2-needle tube structure; 20-puncture and air-infusing combined needle tube; 200-puncture needle tube; 2000-sampling slot; 2001-vent hole; 201-air-infusing needle tube; 21-ultrasonic knife rod; 210-blade edge; 211-positioning pin hole; 212-threaded hole; 213-support ring; 214-sealing ring; 22-air-infusing pipe joint seat; 23-air-infusing pipe joint seat cover; 24-trachea joint; 25-cutting baffle; 26-needle tip;

[0052] 3-transmission structure; 30-internal thread transmission gear; 31-external thread transmission sleeve rod; 32-transmission fixing rod; 33-spring; 34-gasket; 35-circlip; 36-limit support; 37-limit support positioning pin (add prefix to avoid duplication with 211);

[0053] 4-ultrasonic surgical knife handle; 40-handle upper shell; 41-handle lower shell; 42-PCBA board; 43-button; 44-light guide column 45-plug block; 46-wire tail sleeve; 47-ultrasonic surgical knife handle power cord;

[0054] 5-driving structure; 50-encoder motor; 51-motor gear; 52-motor compartment cover;

[0055] 6- transducer; 60- connecting rod; 600- thread; 61- transducer power cord (prefix added to avoid duplication with 47). DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] like Figure 1 As shown, when using the ultrasonic knife bar, the front end of the knife bar is chamfered for cutting tissue. The end of the knife bar has a threaded hole for connecting the transducer. With this design, the knife bar can be used for ultrasonic cutting and connecting the transducer.

[0058] like Figure 2 As shown in the figure, when the ultrasonic knife bar is working, the entire knife bar will vibrate at high frequency periodically. In order to avoid the failure or breakage of the knife bar due to oscillation, the ultrasonic knife bar cannot touch any metal. At the same time, in order to achieve the sealing of the ultrasonic knife bar, only plastic can be considered. According to the simple harmonic vibration characteristics, the wave nodes on the knife bar that do not vibrate are found by combining harmonic response analysis and actual verification. At these nodes, support rings and sealing rings can be generated by encapsulation process. With this design, the problem of difficult sealing of ultrasonic knife bars can be effectively solved.

[0059] like Figure 3 to Figure 5As shown, the ultrasonic surgical tool 1 includes a tool upper shell 10, a tool lower shell 11, a tool collection bin 12, a tracheal limit plate 13, a needle tube structure 2, and a transmission structure 3. The needle tube structure 2 includes a puncture needle tube 200, an air-supplementing needle tube 201, an ultrasonic knife rod 21, an air-supplementing pipe joint seat 22, an air-supplementing pipe joint seat cover 23, a tracheal joint 24, a cutting baffle 25, and a needle tip 26, which are used for puncturing tissue, cutting tissue, and transporting tissue. The transmission structure 3 includes an internal thread transmission gear 30, an external thread transmission sleeve rod 31, a transmission fixing rod 32, a spring 33, a gasket 34, a retaining spring 35, a limit support 36, and a limit support positioning pin 37, which are used to ensure that the ultrasonic knife rod moves horizontally during operation to avoid rotation, and at the same time facilitate the connection between the ultrasonic knife rod and the transducer. Assemble the ultrasonic surgical tool: first, fix the air supply pipe and the negative pressure pipe into the groove of the tool upper shell 10 with glue, reserve a section of air pipe at both ends of the air pipe, then pass the air supply pipe and the negative pressure pipe through the air supply pipe hole 101 and the negative pressure pipe hole 102 in the tool upper shell 10, and press the air pipe limit plate 13 into the tool upper shell 10; then assemble the transmission structure 3, that is, first insert the spring 33, the externally threaded transmission sleeve rod 31, the retaining spring 35, and the gasket 34 into the transmission fixing rod 32 in sequence, and then fix the retaining spring 35 to the slot on the transmission fixing rod 32 to ensure that the externally threaded transmission sleeve rod 31 can move freely forward and backward, and automatically return to the middle position under the elastic force of the springs at both ends. Then insert the ultrasonic knife rod 21 with the support ring 213 and the sealing ring 214 and the limit support 36 into the transmission fixing rod 32, so that the positioning pin hole 211 on the ultrasonic knife rod 21, the hole of the limit support positioning pin 37 and the positioning pin hole of the transmission fixing rod 32 are concentric, and then insert the limit support positioning pin 37 with rubber coating, so that the limit support 36 and the ultrasonic knife rod 21 can move synchronously. Finally, the internal thread transmission gear 30 is installed into the corresponding position on the trachea limit plate 13, and then the external thread transmission sleeve rod 31 is inserted into the internal thread transmission gear 30, and at the same time, the ultrasonic knife rod is passed through the hole of the tool upper shell 10, and the limit support 36 is installed into the corresponding slot on the trachea limit plate 13; secondly, the needle tube structure 2 is assembled, that is, the air-inflation pipe joint seat 22 and the air-inflation pipe joint seat cover 23 are first connected with glue, and then fixed to the puncture and air-inflation combined needle tube 20 (that is, the puncture needle tube 200 and the air-inflation needle tube 201 are welded and connected together) at the specified position, and the two ends are sealed with glue, and then the trachea joint is respectively fixed to the air-inflation pipe joint seat 22 and the negative pressure hole of the tool upper shell 10. Then the cutting baffle 25 is fixed on the needle tip, and then the needle tip is welded to the puncture and air-inflation combined needle tube 20.Finally, after the puncture and air-infusing combined needle tube 20 is passed through the hole of the tool upper shell 10 to the specified position, the contact points of the two ends of the hole of the tool upper shell are sealed and fixed with glue. At this time, the ultrasonic knife rod 21 with the support ring 213 and the sealing ring 214 is inserted into the puncture needle tube 200, and there is a certain gap between the outer wall of the ultrasonic knife rod 21 and the inner wall of the puncture needle tube 200 to ensure that the ultrasonic knife rod 21 does not touch the inner wall of the puncture needle tube 200 when moving. At the same time, the support ring 213 and the sealing ring 214 on the ultrasonic knife rod 21 play both the role of auxiliary support and the role of sealing; finally, cut the air-infusing tube and negative pressure tube of appropriate length, connect one end of them to the trachea joint 24, and then connect the tool lower shell 11 and the tool upper shell 10 by pins and buckles, and finally fix the sealing ring to the groove of the tool upper shell 10 with glue, and connect the tool collection bin 12 and the tool upper shell 10 by buckles.

[0060] The entire negative pressure and air supply system includes an ultrasonic surgical tool part and a host. The ultrasonic surgical tool part includes a puncture and air supply combination needle tube 20 with a vent, an ultrasonic tool rod 21 with a sealing ring, an air supply pipe joint seat 22, an air supply pipe joint seat cover 23, an air pipe joint 24, a tool upper shell 10, a tool collection bin 12, a sealing ring 14, an air supply pipe, and a negative pressure pipe, wherein one end of the air supply pipe and the negative pressure pipe are connected to the host part. The host part provides vacuum negative pressure and controls the opening and closing of air supply and negative pressure at the same time. Figure 6-7 As shown in the figure, the working process of the ultrasonic surgical tool is divided into the puncture process, the cutting process, and the sampling process. The first puncture process is the ultrasonic knife rod before puncture. Figure 6 Position movement to Figure 7 Position, at this time, the sampling slot is in a closed state, reducing the puncture resistance, which is conducive to the smoothness of the entire puncture process. At the same time, the ultrasonic knife rod is in an unexcited state, and the negative pressure end and the gas replenishment end are both closed. During the puncture process, no negative pressure will be generated at the sampling slot of the puncture gas replenishment combination needle tube, ensuring the smoothness of the puncture. When the puncture reaches the designated sampling area, the ultrasonic knife rod 21 is Figure 7 Position movement to Figure 6 position, at which time the sampling slot 2000 changes from a closed state to an open state, so that it contacts the sampled tissue; then the cutting process is that the negative pressure end is opened and the air supply end is switched to negative pressure to form a vacuum closed area. At this time, the negative pressure at the negative pressure end is equivalent to providing a suction force horizontal to the sampling slot, and the negative pressure at the air supply end is equivalent to providing a suction force vertical to the sampling slot, which further ensures that the sampled tissue is completely sucked into the sampling slot and does not get loose. Then the ultrasonic knife rod 21 is excited, and at the same time, the ultrasonic knife rod 21 is Figure 6 Position movement to Figure 7After the cutting is performed at the position, the ultrasonic blade rod 21 is stopped from being excited, and the sampled tissue stays in the puncture needle tube 200 in the puncture and gas-infusing combination needle tube 20. In the final sampling process, the gas-infusing end is switched to gas-infusing on, while the negative pressure end is always on, which will form a negative pressure passage formed by the gap between the outer wall of the ultrasonic blade rod 21 and the inner wall of the puncture needle tube 200 in the puncture and gas-infusing combination needle tube 20, and the gas-infusing needle tube 201 in the puncture and gas-infusing combination needle tube 20 is a negative pressure-gas-infusing passage loop, which will smoothly extract the sampled tissue remaining in the puncture needle tube 200 to the incision of the puncture needle tube 200 through the negative pressure, and drop it into the tool collection bin 12. At the same time, the ultrasonic blade rod 21 is Figure 7 Position movement to Figure 6 During operation, the solid part of the ultrasonic knife bar 21 is Figure 6 Position movement to Figure 7 When the puncture needle tube 200 is in the tool collection chamber 12, a certain distance is always maintained from the discharge incision of the puncture needle tube 200 to ensure that the tissue or liquid in the puncture needle tube 200 can be directly discharged into the tool collection chamber 12 at any time and under any circumstances.

[0061] like Figure 8-Figure 9 As shown, the reusable ultrasonic surgical knife handle includes an upper handle shell 40, a lower handle shell 41, a drive structure 5, a PCBA board 42, a button 43, a light guide column, an insert, a wire tail sleeve, etc. The drive structure 5 includes an encoder motor 50, a motor gear 51, and a motor compartment cover 52, which is used to drive the ultrasonic knife rod 21 to drive the transducer to move after the transducer 6 is connected to the ultrasonic knife rod. Assemble the ultrasonic surgical handle 4: first assemble the drive structure 5, that is, first fix the motor gear 51 to the output shaft of the encoder motor 50, then put the encoder motor into the groove of the handle lower shell 41, and fix the motor compartment cover 52 to the handle lower shell 41 with screws; then assemble the handle upper shell 40, that is, first fix the button to the corresponding position of the handle upper shell 40 with glue, and then fix the light guide column and PCBA board to the handle upper shell 40 with screws, and then fix the wire tail sleeve 46 to the tail end hole of the handle upper shell 40, and then lead the ultrasonic surgical handle power cord 47 out of the wire tail sleeve 46; finally, use screws to connect and fix the handle upper shell 40 and the handle lower shell 41.

[0062] like Figure 10 to Figure 12As shown, the use process of the breast puncture ultrasonic knife of the present invention: first, it is an assembly process, that is, the insert block of the ultrasonic surgical tool is aligned and inserted into the socket of the ultrasonic surgical tool handle 4, then the ultrasonic surgical tool 1 and the ultrasonic surgical tool handle 4 are fastened by buckles, and then the transducer 6 is placed in the tail end hole, and rotated until tightened, and finally the negative pressure tube and the air supply tube are inserted into the host, and the end socket of the ultrasonic surgical tool handle power line 47 and the end socket of the transducer power line 61 are inserted into the host; then it is a working process, after turning on the host, the ultrasonic surgical knife will start the automatic self-check, that is, the encoder motor 50 rotates, drives the ultrasonic knife rod 21 to move, and ensures that the ultrasonic knife rod 21 automatically returns to the initial position. Before puncture, first confirm that the indicator light is off (press the button OPEN / CLOSE to switch), press the forward key on the button to close the sampling slot, this process does not stimulate ultrasonic work, and the air supply end and the negative pressure end are both closed. After the puncture reaches the sampling position, press the back button on the button to open the sampling slot. At this time, the air supply end is switched to negative pressure and opened, and the negative pressure end is also opened. Before ultrasonic cutting, first confirm that the indicator light is in the lighted state (press the button OPEN / CLOSE to switch), press the forward key on the button to cut the tissue, the negative pressure end of this process remains open, and the air supply end also remains negative pressure open, and the ultrasonic knife rod 21 is stimulated to cut, and the ultrasound stops exciting after the cutting is completed. Press the back button on the button, the negative pressure end of this process remains open, and the air supply end is switched to air supply opening. During the sampling process, the indicator light is in the normally lit state, and the above operation (forward key and back key on the button) can be repeated to realize continuous sampling. After the sampling work is completed, confirm that the indicator light is in the off state (press the button OPEN / CLOSE to switch), after pulling out the minimally invasive breast puncture ultrasonic knife, press the tool collection bin 12 on both sides of the hand, pull out the tool collection bin 12, and pour out the sampled tissue. The last step is the disassembly process, that is, first unscrewing and removing the transducer, and then pressing the release button 100 on the ultrasonic surgical tool 1 to remove the ultrasonic surgical tool 1 from the ultrasonic surgical tool handle 4.

[0063] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a point connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0064] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0065] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A breast puncture ultrasonic knife, comprising a disposable ultrasonic surgical knife (1) and a reusable ultrasonic surgical knife handle (4), wherein the reusable ultrasonic surgical knife handle (4) further comprises a reusable transducer (6); characterized in that: The disposable ultrasonic surgical tool (1) comprises: a tool upper shell (10), a tool lower shell (11), a tool collection bin (12), a tracheal limit plate (13), a needle tube structure (2), and a transmission structure (3); a groove is provided at the bottom of the tracheal limit plate (13) for fixing the air supply tube and the negative pressure tube; the air supply tube and the negative pressure tube pass through the air supply tube hole and the negative pressure tube hole provided on the tool upper shell (10); the tracheal limit plate (13) is pressed into the tool upper shell (10); the needle tube structure (2) comprises a puncture needle tube (200), an air supply needle tube (201), an ultrasonic knife rod (21), an air supply tube joint seat (22), an air supply tube joint seat cover (23), a tracheal joint (24), a cutting baffle (25), and a needle tip (26); a chamfered edge is provided at the front end of the ultrasonic knife rod (21); a threaded hole (212) is provided at the end of the ultrasonic knife rod (21), Used to connect the transducer (6); a support ring (213) and a sealing ring (214) are arranged on the ultrasonic knife rod (21); the transmission structure comprises an internally threaded transmission gear (30), an externally threaded transmission sleeve rod (31), a transmission fixing rod, a spring (33), a gasket (34), a retaining spring (35), a limit support (36), and a limit support positioning pin (37); the spring (33), the externally threaded transmission sleeve rod (31), the retaining spring (35), and the gasket (34) are sequentially inserted into the transmission fixing rod; the retaining spring (35) is fixed to a slot arranged on the transmission fixing rod (32); the ultrasonic knife rod (21) and the limit support (36) are inserted into the transmission fixing rod (32), and the positioning pin is inserted into the concentric positioning pin hole (211) on the ultrasonic knife rod (21), the limit support positioning pin (37) hole, and the positioning pin hole of the transmission fixing rod (32); The reusable ultrasonic surgical knife handle (4) comprises a knife handle upper shell (40), a knife handle lower shell (41), a driving structure (5), a PCBA board (42), a button (43), a light guide column (44), an insert (45), and a wire protection tail sleeve (46); the driving structure (5) comprises an encoder motor (50), a motor gear (51), and a motor compartment cover (52); the motor gear (51) is fixed on the output shaft of the encoder motor (50), the encoder motor (50) is placed in a groove provided in the knife handle lower shell (41), and the motor compartment cover (52) is fixed on the knife handle lower shell (41); the button (43), the light guide column (44), and the PCBA board (42) are fixed on the knife handle upper shell (40); and the wire protection tail sleeve (46) is fixed at the tail end hole of the knife handle upper shell (40); The reusable transducer (6) is rotatably fixed to the ultrasonic knife rod (21) after the ultrasonic surgical knife and the ultrasonic surgical knife handle are assembled.

2. The breast puncture ultrasonic scalpel according to claim 1, characterized in that: The ultrasonic surgical knife rod (21) adopts a half-cut hollow tube structure; a support ring (213) and a sealing ring (214) are arranged at a non-vibrating node on the ultrasonic knife rod (21) by means of a rubber encapsulation process.

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