surgical knife

Abstract

The application provides a surgical knife, relates to the technical field of medical instruments, and aims to solve the problems of high failure rate caused by sterilization of the whole surgical knife and high use cost caused by non-reusable of the surgical knife in the prior art. The surgical knife comprises a sterile bin body, a driving device, a conversion fixing mechanism and a knife tool. The driving device is detachably arranged in the sterile bin body. A first port of the sterile bin body is provided with a sealing cover. A fixing seat of the conversion fixing mechanism is connected to a second port of the sterile bin body. A conversion connecting shaft is rotatably arranged in the fixing seat. Two ends of the conversion connecting shaft are connected to a rotating shaft of the driving device and a mounting part of the knife tool respectively. The driving device drives the conversion connecting shaft to rotate and drives the knife tool to rotate synchronously. A first sealing element of the conversion fixing mechanism is sleeved on an outer peripheral wall of the conversion connecting shaft and abuts against an inner peripheral wall of the fixing seat, thereby sealing the second port. The driving device is detachably arranged in the closed sterile bin body, so that the sterile requirement is ensured and the driving device can be reused.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and more particularly to a surgical scalpel. Background Technology

[0002] With the development of minimally invasive surgical techniques, electric planers have become an indispensable tool in medical surgery. Electric planers typically consist of a main unit, a handle, a connecting cable, and a rotating planing head. Their working principle is to drive the planing head to rotate at high speed through a motor, thereby cutting, grinding, and removing soft or hard tissues.

[0003] In related technologies, there are two main ways to achieve surgical aseptic requirements: one is to reuse the entire machine or core components after high-temperature and high-pressure steam sterilization; however, precision motors and transmission structures are prone to aging and damage under repeated high-pressure and high-temperature sterilization, resulting in high equipment failure rates and shortened lifespan. The second is to adopt a disposable design for the entire machine, which completely solves the problems of cross-infection and aseptic assurance, but discarding the entire device after each surgery results in huge material waste and significantly increases medical costs for hospitals and patients. Summary of the Invention

[0004] In view of the above problems, this application provides a surgical scalpel to solve the problems of high failure rate caused by sterilization of the entire surgical scalpel and high usage cost caused by non-reusability in the related art.

[0005] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0006] This application provides a surgical scalpel, comprising: a sterile chamber having a first port and a second port opposite to each other along its axial direction; a driving device detachably disposed from the first port within the sterile chamber, the first port being provided with a sealing cap; a conversion and fixing mechanism including a fixing seat connected to the second port to close the second port, a conversion connecting shaft rotatably disposed within the fixing seat, one end of the conversion connecting shaft being connected to the rotation shaft of the driving device, the driving device being used to drive the conversion connecting shaft to rotate around the axis of the sterile chamber; a cutting tool having a mounting portion extending into the fixing seat and fixedly connected to the other end of the conversion connecting shaft, the conversion connecting shaft being used to drive the cutting tool to rotate synchronously; the conversion and fixing mechanism further comprising a first sealing element sleeved on the outer peripheral wall of the conversion connecting shaft and abutting against the inner peripheral wall of the fixing seat.

[0007] In one embodiment of this application, the conversion and fixing mechanism further includes an outer sleeve; the fixing seat includes a first connecting segment and a second connecting segment connected along the axial direction of the sterile chamber, the first connecting segment being connected from the second port to the sterile chamber to close the second port; the outer sleeve is sleeved on the outer periphery of the second connecting segment; the conversion and fixing mechanism further includes an elastic element, the elastic element surrounding the outer periphery of the second connecting segment, and the two ends of the elastic element along its elastic extension direction being respectively connected to the first connecting segment and the outer sleeve; wherein, the elastic extension direction of the elastic element is parallel to the axial direction of the sterile chamber.

[0008] In one embodiment of this application, when the outer sleeve is fitted onto the outer periphery of the second connecting section, the abutting surface of the outer sleeve abuts against the second port, and the abutting surface is provided with an annular flange; the annular flange extends from the second port into the sterile chamber and abuts against the inner peripheral wall of the sterile chamber to seal the second port a second time.

[0009] In one embodiment of this application, the conversion and fixing mechanism further includes a third sealing element, which is sleeved on the outer peripheral wall of the first connecting section and abuts against the inner peripheral wall of the sterile chamber; and / or, the conversion and fixing mechanism further includes a fourth sealing element, which is sleeved on the outer peripheral wall of the annular flange and abuts against the inner peripheral wall of the sterile chamber.

[0010] In one embodiment of this application, the rotating shaft of the driving device has a first locking member, and one end of the conversion connecting shaft is provided with a first guide locking position that matches the first locking member; and / or, the mounting part of the tool has a second locking member, and the other end of the conversion connecting shaft is provided with a second guide locking position that matches the second locking member.

[0011] In one embodiment of this application, the sealing cover further includes: a cover body, a sealing gasket, a sealing gasket plate, and a sealing gasket fixing plate; one end of the cover body is rotatably connected to the first port, and the other end of the cover body can rotate away from or towards the first port; the sealing gasket has opposing first and second surfaces along the axial direction of the sterile chamber, the first surface abuts against the edge of the cover body, and the first surface is provided with an interlocking protrusion that extends into the cover body; the sealing gasket plate is disposed in the cover body and abuts against the interlocking protrusion; the second surface is provided with an annular groove, and the sealing gasket fixing plate is disposed in the annular groove; the central axes of the sealing gasket plate, the sealing gasket, and the sealing gasket fixing plate coincide, and the sealing gasket plate, the sealing gasket, and the sealing gasket fixing plate are connected to the cover body through at least one connector.

[0012] In one embodiment of this application, the sealing cover further includes: a movable push block; the movable push block is disposed in the cover body, one end of the movable push block has an elastic portion, and the other end of the movable push block has a movable locking portion; when the cover body is close to the first port, the movable locking portion contacts and slides on the contact surface with the fixed locking portion provided on the first port, and compresses the elastic portion, so that the movable locking portion engages with the locking surface of the fixed locking portion to complete locking; the movable push block has a concave and convex surface, which is exposed on the outer surface of the cover body through a slot provided on the cover body. Applying external force to the concave and convex surface causes the movable push block to drive the elastic portion to compress, and drives the movable locking portion to disengage from the fixed locking portion to complete unlocking.

[0013] In one embodiment of this application, the cutting tool includes: a cutting tool sleeve and a cutting tool body; the cutting tool sleeve includes a conical head, the conical head extending into the second connecting section and engaging with the inner peripheral wall of the second connecting section; the cutting tool body is rotatably disposed within the cutting tool sleeve, the cutting tool connecting portion of the cutting tool body extending from the conical head and fixedly connected to the other end of the conversion connecting shaft; the cutting tool working portion of the cutting tool body extending from the tail of the cutting tool sleeve.

[0014] In one embodiment of this application, the outer peripheral wall of the conical head is provided with at least one positioning protrusion, the second connecting segment is provided with a positioning groove that matches the positioning protrusion, and the outer sleeve is provided with a clearance groove that allows the positioning protrusion to pass through.

[0015] In one embodiment of this application, the conversion fixing mechanism further includes a second sealing element; the inner peripheral wall of the second connecting section is provided with an abutment surface, the abutment surface being opposite to and spaced apart from the end face of the conical head along the axial direction of the sterile chamber; the second sealing element is disposed between the abutment surface and the end face of the conical head.

[0016] The scalpel provided in this application has the following technical effects:

[0017] The drive unit is encapsulated in a sealed sterile chamber by a sealing cap and a first sealing element. When the scalpel needs to be sterilized by high temperature and high pressure, only the drive unit needs to be removed, avoiding damage to the drive unit caused by high temperature and high pressure sterilization. While ensuring the sterility requirements of the scalpel, the drive unit can also be reused, reducing surgical costs and avoiding waste of resources. Attached Figure Description

[0018] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the exploded structure of a scalpel provided in an embodiment of this application;

[0020] Figure 2 A schematic diagram of the sterile chamber of a scalpel provided in an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the structure of the scalpel provided in the embodiments of this application;

[0022] Figure 4 for Figure 3 A schematic diagram of the cross-section of part C in the sterile chamber along the axial direction;

[0023] Figure 5 An exploded structural diagram of the surgical knife conversion and fixing mechanism provided in an embodiment of this application;

[0024] Figure 6 The scalpel provided in the embodiments of this application is in Figure 4 Schematic diagram of the radial section along the E-section line;

[0025] Figure 7 The scalpel provided in the embodiments of this application is in Figure 4 Schematic diagram of the radial section of the F-section;

[0026] Figure 8 for Figure 1 An enlarged view of part A in the image;

[0027] Figure 9 This is a schematic diagram of the exploded structure of a scalpel provided in an embodiment of this application;

[0028] Figure 10 An exploded structural diagram of the sterile chamber of a scalpel provided in an embodiment of this application;

[0029] Figure 11 The scalpel provided in the embodiments of this application is in Figure 4 Schematic diagram of the cross-section (axial direction) at section M;

[0030] Figure 12 for Figure 3 A schematic diagram of the cross-section of part D in the sterile chamber along the axial direction;

[0031] Figure 13 The scalpel provided in the embodiments of this application is in Figure 2 Schematic diagram of the radial section (section line B);

[0032] Figure 14 This is an exploded structural diagram of the scalpel driving device provided in an embodiment of this application.

[0033] Figure label:

[0034] 100-Sterile chamber;

[0035] 101-First port; 102-Second port; 103-Sealing cap; 104-Insert; 105-Second connector; 106-First pipe; 107-Second pipe; 108-Receiving groove; 109-Through hole;

[0036] 1011-Fixed snap-fit ​​part; 1012-Second connecting pin; 1013-Second rotating connection part; 1014-Rotating shaft; 1031-Cover body; 1032-Modible push block; 1033-Sealing gasket; 1034-Sealing gasket plate; 1035-Sealing gasket fixing plate; 1036-First connecting piece;

[0037] 10311-First rotating connection part; 10321-Elastic part; 10322-Modible snap-fit ​​part; 10323-Concave-convex surface; 10331-Matching protrusion;

[0038] 200 - Drive unit;

[0039] 201-Rotating shaft; 202-First connecting pin; 203-First locking element; 204-Housing housing; 205-Motor; 206-Circuit board; 207-Aviation socket; 208-Rear cover; 209-Pull ring;

[0040] 300 - Conversion and fixing mechanism;

[0041] 301-Fixed base; 302-Converter shaft; 303-First seal; 304-Second seal; 305-Outer sleeve; 306-Elastic element; 307-Bearing; 308-Snap ring;

[0042] 3011 - First connecting section; 3012 - Second connecting section; 3021 - First guide locking position; 3022 - Second guide locking position; 3023 - Annular positioning groove; 3024 - Annular sealing groove; 3051 - Annular flange; 3052 - Relief groove; 3053 - Connecting hole;

[0043] 30111-Fixed connection part; 30112-Drainage pipe; 30121-Positioning groove; 30122-Connecting convex shaft;

[0044] 400 - Cutting tools;

[0045] 401 - Tool sleeve; 402 - Tool body;

[0046] 4011 - Conical head; 4012 - Tail; 4013 - Positioning protrusion; 4021 - Second locking element; 4022 - Tool working part;

[0047] 500 - Attracting agencies;

[0048] 501 - Suction shaft; 502 - First suction button; 503 - Second suction button; 504 - Suction tube;

[0049] 5011 - Micropores;

[0050] 600-Airplane Plug;

[0051] 700-Disinfection Cap. Detailed Implementation

[0052] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are all within the scope of protection of this application.

[0053] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The surgical scalpel provided in this application embodiment includes: a sterile chamber 100, a drive device 200, a conversion and fixing mechanism 300, and a cutting tool 400.

[0054] The sterile chamber 100 has a first port 101 and a second port 102 that are opposite each other along its axial direction.

[0055] The drive unit 200 is detachably installed inside the sterile chamber 100 from the first port 101, and the first port 101 is provided with a sealing cover 103.

[0056] The conversion and fixing mechanism 300 includes a fixing seat 301, which is connected to the second port 102. The outer peripheral wall of the fixing seat 301 abuts against the inner peripheral wall of the sterile chamber 100 to close the second port 102, thereby forming an isolation from the outside world.

[0057] A conversion connecting shaft 302 is rotatably disposed inside the fixed base 301, and the conversion connecting shaft 302 coincides with the central axis of the sterile chamber 100; a rotating shaft 201 extends out of the drive device 200, and the central axis of the rotating shaft 201 also coincides with the central axis of the sterile chamber 100; one end of the conversion connecting shaft 302 extends out of the fixed base 301 and is connected to the rotating shaft 201, so that the drive device 200 can drive the conversion connecting shaft 302 to rotate.

[0058] The tool 400 has a mounting part at the tool holder position. The mounting part extends into the fixed seat 301 and is fixedly connected to the other end of the conversion connecting shaft 302, so that when the drive device 200 drives the conversion connecting shaft 302 to rotate, the conversion connecting shaft 302 can drive the tool 400 to rotate synchronously.

[0059] The conversion fixing mechanism 300 also includes a first sealing element 303, which may be an annular sealing ring.

[0060] The outer peripheral wall of the conversion connecting shaft 302 is provided with an annular sealing groove 3024, and the first sealing element 303 is disposed in the annular sealing groove 3024, so that the first sealing element 303 is sleeved on the outer peripheral wall of the conversion connecting shaft 302; and part of the first sealing element 303 also overflows from the groove opening of the annular sealing groove 3024, so that the first sealing element 303 also abuts against the inner peripheral wall of the fixed seat 301, so as to seal the rotational connection between the conversion connecting shaft 302 and the fixed seat 301, thereby achieving the sealing of the inside of the fixed seat 301.

[0061] The sealing cap 103 is used to seal the first port 101, and the fixing seat 301 and the first sealing element 303 are used to seal the second port 102, so that the drive device 200 is encapsulated in a sealed sterile chamber 100. When the scalpel needs to be sterilized by high temperature and high pressure, only the drive device 200 needs to be removed, avoiding damage to the drive device 200 caused by high temperature and high pressure sterilization. While ensuring the sterility requirements of the scalpel, the reusability of the drive device 200 is also ensured, reducing surgical costs and avoiding waste of resources.

[0062] It should be noted that the outer peripheral wall of the conversion connecting shaft 302 is provided with two annular protrusions spaced apart along its axial direction, and an annular sealing groove 3024 is formed between the two annular protrusions.

[0063] Continue to refer to Figure 4 and Figure 5 In this embodiment of the application, the conversion fixing mechanism 300 further includes an outer sleeve 305 and an elastic element 306.

[0064] Along the axial direction of the sterile chamber 100, the fixing seat 301 includes a first connecting section 3011 and a second connecting section 3012 connected together. The first connecting section 3011 extends into the sterile chamber 100 from the second port 102, and the outer peripheral wall of the first connecting section 3011 abuts against the inner peripheral wall of the sterile chamber 100, so that the fixing seat 301 is connected to the sterile chamber 100 while also sealing the second port 102.

[0065] The outer sleeve 305 is fitted onto the outer periphery of the second connecting section 3012. The outer peripheral wall of the second connecting section 3012 is also provided with at least one connecting cam 30122. The outer sleeve 305 is provided with at least one connecting hole 3053 that matches the at least one connecting cam 30122. When the outer sleeve 305 is fitted onto the outer periphery of the second connecting section 3012, the connecting cam 30122 is connected to the connecting hole 3053 to ensure the connection stability between the outer sleeve 305 and the second connecting section 3012.

[0066] The elastic element 306 surrounds the outer periphery of the second connecting section 3012. The two ends of the elastic element 306 along its elastic extension direction are respectively connected to the first connecting section 3011 and the outer sleeve 305. The elastic extension direction of the elastic element 306 is parallel to the axial direction of the sterile chamber 100.

[0067] The elastic element 306 is used to provide axial preload to absorb installation errors and impacts during high-speed rotation, ensuring that the cutter 400 remains stable under high-speed rotation and improving the stability and safety of the scalpel.

[0068] Among them, the elastic element 306 can be a torsion spring.

[0069] The elastic element 306 can also be a wave spring or a disc spring, which can provide a more uniform preload.

[0070] Continue to refer to Figure 4 and Figure 5 In this embodiment of the application, the conversion fixing mechanism 300 further includes a bearing 307 and a retaining ring 308.

[0071] The bearing 307 is sleeved on the outer periphery of the conversion connecting shaft 302 so that the conversion connecting shaft 302 is rotatably connected to the fixed seat 301; the outer peripheral wall of the conversion connecting shaft 302 is also provided with an annular positioning groove 3023, and the snap ring 308 is disposed in the annular positioning groove 3023, and the snap ring 308 abuts against one end face of the bearing 307 along the axial direction of the sterile chamber 100; at the same time, the inner peripheral wall of the fixed seat 301 is also provided with a limiting platform, and the other end face of the bearing 307 along the axial direction of the sterile chamber 100 abuts against the limiting platform.

[0072] In other words, the snap ring 308 and the limiting platform are used to limit the bearing 307.

[0073] Continue to refer to Figure 4 and Figure 5 In this embodiment of the application, when the outer sleeve 305 is fitted onto the outer periphery of the second connecting section 3012, the abutting surface of the outer sleeve 305 abuts against the second port 102, and the abutting surface is also provided with an annular flange 3051; the annular flange 3051 extends from the second port 102 into the sterile chamber 100 and abuts against the inner peripheral wall of the sterile chamber 100. On the basis of the first connecting section 3011 sealing the second port 102, the annular flange 3051 is used to seal the second port 102 a second time, further improving the sealing effect.

[0074] Continue to refer to Figure 4 In this embodiment of the application, the conversion and fixing mechanism 300 further includes a third sealing element, which is sleeved on the outer peripheral wall of the first connecting section 3011 and abuts against the inner peripheral wall of the sterile chamber 100; on the basis of the first connecting section 3011 closing the second port 102, the third sealing element continues to seal to ensure the sealing effect.

[0075] Continue to refer to Figure 4 In this embodiment of the application, the conversion and fixing mechanism 300 further includes a fourth sealing element, which is sleeved on the outer peripheral wall of the annular flange 3051 and abuts against the inner peripheral wall of the sterile chamber 100; based on the secondary sealing of the second port 102 by the annular flange 3051, the fourth sealing element is used to continue sealing to ensure the sealing effect.

[0076] The third and fourth seals can be silicone sealing rings.

[0077] refer to Figure 4 and Figure 6 In this embodiment of the application, a fixed connection portion 30111 extends outward from the end face of the first connecting segment 3011 away from the second connecting segment 3012. The fixed connection portion 30111 is provided with at least one connection blind hole, and the central axis of the connection blind hole is parallel to the axial direction of the sterile chamber 100.

[0078] The sterile chamber 100 is also provided with an insert 104 integrally formed with the sterile chamber 100. The insert 104 is provided with a connecting through hole that matches the connecting blind hole. The second connector 105 is connected to the connecting through hole and the connecting blind hole in sequence, so that the fixed connection part 30111 is fixedly connected to the sterile chamber 100. On the basis of the first connection part 3011 being fitted and connected to the sterile chamber 100, a second fastening connection is performed to ensure the connection stability of the fixing seat 301.

[0079] refer to Figure 4 and Figure 5In this embodiment of the application, the rotating shaft 201 of the drive device 200 has a first locking member 203; wherein, a first connecting pin 202 is provided on the rotating shaft 201, and the base of the first locking member 203 is sleeved on the rotating shaft 201 and connected to the first connecting pin 202, so that the first locking member 203 is provided on the rotating shaft 201; one end of the conversion connecting shaft 302 is provided with a first guide locking position 3021 that matches the first locking member 203, so that the first locking member 203 provides self-positioning while connecting with the first guide locking position 3021, ensuring the coaxiality of the rotating shaft 201 and the conversion connecting shaft 302.

[0080] refer to Figure 4 and Figure 5 and Figure 7 In this embodiment of the application, the mounting part of the tool 400 has a second locking member 4021, and the other end of the conversion connecting shaft 302 is provided with a second guide locking position 3022 that matches the second locking member 4021, so that the second locking member 4021 and the second guide locking position 3022 are connected and self-positioning is provided, ensuring the coaxiality of the conversion connecting shaft 302 and the tool 400.

[0081] The first locking member 203 and the second locking member 4021 can be connecting claws, and the first locking member 203 and the second locking member 4021 can be three-claw connecting claws. The first guide locking position 3021 and the second guide locking position 3022 are respectively provided with three locking positions that match the three-claw connecting claws.

[0082] refer to Figure 4 , Figure 8 and Figure 9 In this embodiment of the application, the cutting tool 400 includes: a cutting tool sleeve 401 and a cutting tool body 402.

[0083] The tool sleeve 401 includes a conical head 4011, the narrow end of which is close to the second connecting section 3012, such that the conical head 4011 extends into the second connecting section 3012 and engages with the inner peripheral wall of the second connecting section 3012.

[0084] The tool body 402 is rotatably disposed inside the tool sleeve 401. The tool connecting part of the tool body 402 extends out from the conical head 4011 of the tool sleeve 401 and is fixedly connected to the other end of the conversion connecting shaft 302. The tool working part 4022 of the tool body 402 extends out from the tail 4012 of the tool sleeve 401. The tool connecting part is the second locking member 4021.

[0085] The blade sheath 401 and the blade body 402 are connected separately. A standard blade sheath 401 can be matched with various blade bodies 402 of different shapes and sizes. Doctors can change the appropriate blade body 402 according to different tissues and different operation steps. The blade body 402 will become dull after one or a few uses and become a disposable or limited-use consumable. The separate design makes the blade sheath 401 reusable. Only the blade body 402 needs to be discarded, which greatly reduces the cost of medical consumables.

[0086] Meanwhile, the blade body 402 comes into direct contact with the patient's tissue and is a disposable consumable, which can fundamentally prevent cross-infection caused by incomplete blade cleaning.

[0087] Furthermore, the conical head 4011 ensures that the tool 400 is easier to operate during installation and removal.

[0088] In this embodiment, the outer peripheral wall of the conical head 4011 is provided with at least one positioning protrusion 4013, and the second connecting section 3012 is provided with a positioning groove 30121 that matches the positioning protrusion 4013; the outer sleeve 305 is provided with a clearance groove 3052 that allows the positioning protrusion 4013 to pass through.

[0089] As the conical head 4011 extends into the second connecting section 3012, the positioning protrusion 4013 is embedded in the positioning groove 30121 through the relief groove 3052, thereby achieving automatic positioning and stable connection of the tool sleeve 401.

[0090] In this embodiment, the conversion and fixing mechanism 300 can be integrally formed with the sterile chamber 100; or, the cutting tool 400 can be integrally formed with the conversion and fixing mechanism 300.

[0091] One-piece molding refers to processing a complex structure that originally required the assembly of multiple parts into a complete, seamless single component in one go. The conversion and fixing mechanism 300 and the sterile chamber 100 are not detachable after one-piece molding, and similarly, the cutting tool 400 and the conversion and fixing mechanism 300 are also not detachable after one-piece molding.

[0092] It should be noted that when the cutting tool 400 and the conversion and fixing mechanism 300 are integrally formed, the cutting tool sleeve 401 and the conversion and fixing mechanism 300 are processed into a complete and seamless single part in one go. The cutting tool sleeve 401 and the conversion and fixing mechanism 300 are not detachable, and the cutting tool body 402 is rotatably set inside the cutting tool sleeve 401.

[0093] In this embodiment of the application, the tool body 402 can extend into the tool sleeve 401 from the conical head 4011 or from the tail 4012 of the tool sleeve 401.

[0094] After the tool sleeve 401 and the conversion and fixing mechanism 300 are integrally formed, the tool body 402 can extend into the tool sleeve 401 from the tail 4012 of the tool sleeve 401.

[0095] refer to Figure 4 , Figure 10 , Figure 11 and Figure 12 The scalpel in this embodiment of the application also includes a suction mechanism 500, which includes a suction shaft 501, a first suction button 502, a second suction button 503, and a suction tube 504.

[0096] The sterile chamber 100 is provided with a through hole 109, the central axis of which is perpendicular to the axial direction of the sterile chamber 100; the central axis of the suction shaft 501 coincides with the central axis of the through hole 109, and the suction shaft 501 is movably disposed in the through hole 109; the two ends of the suction shaft 501 extend from the two ends of the through hole 109 respectively, and the first suction button 502 and the second suction button 503 are respectively connected to the two ends of the suction shaft 501.

[0097] The operator can press the first suction button 502 or the second suction button 503 to move the suction shaft 501 to a preset position in the through hole 109.

[0098] A drainage pipe 30112 is provided inside the first connecting section 3011. The central axis of the drainage pipe 30112 is perpendicular to the central axis of the first connecting section 3011. The drainage pipe 30112 is connected to the chamber where the cutter connection part and the conversion connection shaft 302 are located. The debris or blood generated by the cutter working part 4022 in the surgical area is sucked into the cutter sleeve 401 and continues to flow from the cutter sleeve 401 into the chamber where the cutter connection part and the conversion connection shaft 302 are located, and then into the drainage pipe 30112.

[0099] Meanwhile, the sterile chamber 100 is also provided with a first pipe 106 and a second pipe 107. The first pipe 106 is connected to the drainage pipe 30112. The suction shaft 501 is used to block the first pipe 106 and the second pipe 107. The suction shaft 501 is provided with a plurality of microholes 5011 distributed at intervals along its axial direction. The plurality of microholes 5011 are used to connect the first pipe 106 and the second pipe 107. When the suction shaft 501 moves to the preset position in the through hole 109, the first pipe 106 and the second pipe 107 can be connected through the plurality of microholes 5011, and debris or blood from the surgical area will enter the second pipe 107.

[0100] The outer peripheral wall of the sterile chamber 100 is also provided with a receiving groove 108, in which a suction tube 504 is placed. The inlet of the suction tube 504 is connected to the second pipe 107, and the outlet of the suction tube 504 extends toward the first port 101. Debris or blood from the surgical area will flow out of the sterile chamber 100 through the outlet of the suction tube 504, ensuring that the surgical area is clear.

[0101] By integrating the "suction" and "ablation" functions into one instrument, the smoothness, safety, and efficiency of the surgery are improved.

[0102] It should be noted that the outlet of the suction tube 504 is connected to a negative pressure suction device. When the first suction button 502 or the second suction button 503 is pressed to the preset position, the various tubes inside the scalpel are connected, and the suction head at the front end of the scalpel starts to work, sucking away blood, irrigation fluid, smoke and secretions from the surgical area, keeping the surgical field clear.

[0103] Continue to refer to Figure 4 and Figure 5 In this embodiment of the application, the conversion fixing mechanism 300 further includes a second sealing element 304, which may be an annular sealing ring.

[0104] The inner peripheral wall of the second connecting section 3012 is provided with an abutment platform. Along the axial direction of the sterile chamber 100, the abutment platform is opposite to and spaced from the end face of the conical head 4011. The second sealing element 304 is provided between the abutment platform and the end face of the conical head 4011 to achieve a seal at the connection between the cutter 400 and the fixed seat 301, ensuring that all debris or blood is sucked into the drainage pipe 30112.

[0105] refer to Figure 10 , Figure 12 and Figure 13 In this embodiment of the application, the sealing cover 103 includes: a cover body 1031, a sealing gasket 1033, a sealing gasket plate 1034, and a sealing gasket fixing plate 1035.

[0106] One end of the cover 1031 is rotatably connected to the first port 101, and the other end of the cover 1031 can rotate in a direction away from or towards the first port 101.

[0107] The cover 1031 has a first rotating connection part 10311 on its side peripheral wall, and the sterile chamber 100 has a second rotating connection part 1013 on its outer peripheral wall near the first port 101. The first rotating connection part 10311 and the second rotating connection part 1013 are rotatably connected by a rotating shaft 1014. The axis of the rotating shaft 1014 is parallel to the radial direction of the sterile chamber 100, and the first rotating connection part 10311 can rotate around the rotating shaft 1014.

[0108] The sealing gasket 1033 has a first surface and a second surface opposite to each other along the axial direction of the sterile chamber 100. The first surface abuts against the edge of the cover 1031. The first surface is provided with an interlocking protrusion 10331, which extends into the cover 1031, so that the sealing gasket 1033 is fixedly connected to the cover 1031. When the sealing cover 103 is closed, the second surface of the sealing gasket 1033 will abut against the end face of the first port 101, so that the sealing cover 103 seals the first port 101.

[0109] The sealing gasket 1033 is connected to the cover 1031 by at least one first connector 1036, which may be a fastening screw; based on the fitting connection between the fitting protrusion 10331 and the cover 1031, the connection stability of the sealing gasket 1033 is further improved.

[0110] Meanwhile, the sealing gasket 1034 is disposed in the cover 1031 and abuts against the fitting protrusion 10331; the second surface is also provided with an annular groove, and the sealing gasket fixing plate 1035 is disposed in the annular groove; the central axes of the sealing gasket 1034, the sealing gasket 1033 and the sealing gasket fixing plate 1035 coincide, and the sealing gasket 1034, the sealing gasket 1033 and the sealing gasket fixing plate 1035 are connected to the cover 1031 through at least one first connector 1036.

[0111] The gasket plate 1034 and the gasket fixing plate 1035 are used to fix the gasket 1033 on the two surfaces of the gasket 1033, respectively, to prevent the gasket 1033 from shifting and to ensure the sealing effect of the gasket 1033.

[0112] Continue to refer to Figure 10 and Figure 12 In this embodiment of the application, the sealing cover 103 also includes a movable pusher 1032.

[0113] The movable push block 1032 is disposed inside the cover 1031. One end of the movable push block 1032 has an elastic part 10321, and the other end of the movable push block 1032 has a movable locking part 10322. The elastic part 10321 can be a spring, and the movable locking part 10322 can be a hook.

[0114] A fixing snap-fit ​​part 1011 is provided at the first port 101. One end of the fixing snap-fit ​​part 1011 is fixed to the first port 101 by the second connecting pin 1012, and the other end of the fixing snap-fit ​​part 1011 extends out of the end face of the first port 101. The other end of the fixing snap-fit ​​part 1011 can be a hook.

[0115] When the cover 1031 approaches the first port 101, the movable latching part 10322 contacts the fixed latching part 1011 and slides on the contact surface, and compresses the elastic part 10321, so that the movable latching part 10322 engages with the latching surface of the fixed latching part 1011, thus completing the locking; thereby locking the sealing cover 103 at the first port 101 and ensuring the sealing effect of the sealing cover 103.

[0116] The inner surface of the cover 1031 faces the first port 101, and the outer surface of the cover 1031 faces away from the first port 101. The movable push block 1032 has a concave-convex surface 10323, which is exposed on the outer surface of the cover 1031 through a slot provided on the cover 1031. When it is necessary to open the sealing cover 103, an external force is applied to the concave-convex surface 10323 to move the movable push block 1032, which compresses the elastic part 10321 and causes the movable latching part 10322 to disengage from the fixed latching part 1011, thus completing the unlocking.

[0117] The sealing cover 103 in the above embodiments of this application is a flip cover. Unlike the flip cover sealing cover 103, the cover body 1031 of the sealing cover 103 can also be a knob-type threaded cover.

[0118] The cover 1031 has an internal thread on its inner peripheral wall, and the outer peripheral wall of the first port 101 has an external thread that matches the internal thread, so that the cover 1031 is connected to the first port 101 by a threaded connection. Through the tight engagement of the threads, plus the sealing gasket 1033, a very reliable airtight and liquid-tight seal can be formed.

[0119] Alternatively, unlike the flip-top sealing cover 103, the cover body 1031 of the sealing cover 103 can also be a sliding cover.

[0120] The inner peripheral wall of the cover 1031 is provided with a slide rail, and the outer peripheral wall where the first port 101 is located has a groove that matches the slide rail. The sealing cover 103 is opened or closed by linear sliding. It is convenient, quick to open and close, and can be operated with one hand.

[0121] refer to Figure 14 In this embodiment of the application, the drive device 200 includes: a housing 204, a motor 205, a circuit board 206, an aviation socket 207, a rear cover 208, and a pull ring 209.

[0122] The motor 205 is disposed in the housing 204. The front end face of the motor 205 is provided with a rotating shaft 201. The rotating shaft 201 extends from one end of the housing 204. A first connecting pin 202 is provided on the rotating shaft 201. A first locking member 203 is connected to the rotating shaft 201 through the first connecting pin 202.

[0123] Circuit board 206 is electrically connected to the rear end face of motor 205.

[0124] The housing 204 is provided with a back cover 208. One end of the aviation socket 207 is electrically connected to the circuit board 206, and the other end of the aviation socket 207 is exposed outside the housing 204 through a through hole on the back cover 208.

[0125] A pull ring 209 is rotatably connected to the rear cover 208. When the drive device 200 is placed inside the sterile chamber 100, the pull ring 209 is attached to the rear cover 208. When it is necessary to remove the drive device 200 from the sterile chamber 100, the pull ring 209 is rotated so that the operator can use the pull ring 209 to remove the drive device 200 from the sterile chamber 100.

[0126] refer to Figure 1 , Figure 10 and Figure 12 It should be noted that the scalpel provided in this application embodiment also includes an aviation connector 600.

[0127] The sealing cover 103 has a central through hole on its cover body 1031, sealing pad plate 1034, sealing pad 1033 and sealing pad fixing plate 1035. When the sealing cover 103 is closed on the first port 101, one end of the aviation plug 600 extends into the sterile chamber 100 through the central through hole and is electrically connected to the aviation socket 207 to provide power to the scalpel.

[0128] The sealing gasket 1033 is used to seal the connection between the aviation plug 600 and the center through hole.

[0129] In this embodiment of the application, the outer peripheral wall of the sterile chamber 100 is provided with a drive button that is electrically connected to the drive device 200. The drive device 200 is used to drive the cutter 400 to open, close or change direction within a preset time according to the drive signal provided by the drive button; the drive signal includes pressing time or pressing number of times.

[0130] The drive button is electrically connected to the circuit board 206. The circuit board 206 has a built-in time recognition module, which can be a single-chip microcomputer or microcontroller. The time recognition module generates a control signal by detecting the pressing duration and number of times the drive button is pressed, thereby realizing the dynamic adjustment of the speed and direction of the motor 205. Doctors can complete the speed adjustment and direction switching by simply pressing the button, reducing physical operation steps and improving surgical efficiency and human-computer interaction experience.

[0131] In this embodiment, the driving signal is the pressing time and the pressing time is greater than or equal to 5 seconds. That is, when the driving button is pressed for a long time, the driving device 200 is used to output a progressive speed-up signal to drive the rotational shaft 201 to gradually increase to the preset maximum speed and maintain it.

[0132] When the drive signal is the pressing time and the pressing time is less than or equal to 1 second, that is, when the drive button is pressed briefly, the drive device 200 is used to output a progressive deceleration signal to drive the rotation speed of the rotating shaft 201 to gradually decrease and stop.

[0133] Gradual acceleration or deceleration can avoid tissue damage caused by sudden changes in rotational speed.

[0134] In this embodiment of the application, when the driving signal is the number of presses and the number of presses is two, the driving device 200 is used to drive the rotating shaft 201 to switch the rotation direction; from clockwise rotation to counterclockwise rotation, or from counterclockwise rotation to clockwise rotation.

[0135] Direction switching is achieved through double-clicking, reducing the number of physical switches and improving ease of operation.

[0136] It should be noted that doctors can customize the button operation logic of the time recognition module according to the needs of the surgery, such as pressing and holding for 1 second to trigger a specific speed setting, in order to adapt to various surgical scenarios.

[0137] It should also be noted that the time recognition module supports voice control or foot pedal control to replace button operation, so as to achieve hands-free operation, improve surgical efficiency, and reduce human error.

[0138] In this embodiment, the sterile chamber 100 can be made of medical-grade stainless steel or medical-grade plastic. Medical-grade stainless steel or medical-grade plastic is heat-resistant and chemically stable, which can ensure that the structure of the sterile chamber 100 does not deform after multiple sterilizations and maintains a sterile environment.

[0139] In this embodiment, the sterile chamber 100 is not limited to a cylindrical shape, but can be designed as a square or irregular shape to improve the versatility of the device and enable it to adapt to different surgical scenarios such as minimally invasive surgery and orthopedic surgery.

[0140] The scalpel provided in this application embodiment may also include a sterilization cap 700.

[0141] The disinfection cover 700 is detachably connected to the sealing cover 103 and the first port 101. After the drive device 200 is installed into the sterile chamber 100, the disinfection cover 700 is removed, and then the sealing cover 103 is closed to form a sealed space.

[0142] In summary, this application provides a surgical scalpel, comprising: a sterile housing 100, a drive device 200, a conversion and fixing mechanism 300, and a blade 400. The sterile housing 100 has a first port 101 and a second port 102 opposite to each other along its axial direction. The drive device 200 is detachably disposed within the sterile housing 100 from the first port 101. The first port 101 is provided with a sealing cap 103. The conversion and fixing mechanism 300 includes a fixing seat 301, which is connected to the second port 102 to close the second port 102. A conversion connecting shaft 302 is rotatably disposed within the fixing seat 301, and one end of the conversion connecting shaft 302 is connected to the fixing seat 400. The mounting portion of the tool 400 extends into the fixed base 301 and is connected to the rotating shaft 201 of the drive device 200, so that the drive device 200 can drive the conversion connecting shaft 302 to rotate; the mounting portion of the tool 400 extends into the fixed base 301 and is fixedly connected to the other end of the conversion connecting shaft 302, so that when the drive device 200 drives the conversion connecting shaft 302 to rotate, the conversion connecting shaft 302 can drive the tool 400 to rotate synchronously; the conversion fixing mechanism 300 also includes a first sealing member 303, which is sleeved on the outer peripheral wall of the conversion connecting shaft 302; and the first sealing member 303 also abuts against the inner peripheral wall of the fixed base 301 to achieve sealing inside the fixed base 301.

[0143] The first port 101 is sealed by the sealing cap 103, and the second port 102 is sealed by the fixing seat 301 and the first sealing element 303, so that the drive device 200 is encapsulated in a closed sterile chamber 100. At the same time, the drive device 200 adopts a detachable design. When the scalpel needs to be sterilized by high temperature and high pressure after surgery, only the drive device 200 needs to be removed, avoiding damage to the drive device 200 caused by high temperature and high pressure sterilization. While ensuring the sterility requirements of the scalpel, the reusability of the drive device 200 is also ensured, reducing surgical costs and avoiding waste of medical resources.

[0144] The various embodiments or embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0145] It should be noted that the embodiments referred to in the specification, such as "one embodiment," "embodiment," "exemplary embodiment," and "some embodiments," may include specific features, structures, or characteristics, but not all embodiments necessarily include that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when describing a specific feature, structure, or characteristic in conjunction with embodiments, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0146] Generally speaking, terms should be understood at least in part by their use in context. For example, the term “one or more” as used in the text can be used, at least in part, to describe any feature, structure, or characteristic of the meaning of the singular, or a combination of features, structures, or characteristics of the meaning of the plural, depending on the context.

[0147] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0148] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0149] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A surgical scalpel, characterized in that, include: A sterile chamber (100) having a first port (101) and a second port (102) opposite each other along its axial direction; A drive device (200) is detachably disposed within the sterile chamber (100) from the first port (101), and the first port (101) is provided with a sealing cap (103) for closing the first port (101). A conversion fixing mechanism (300) includes a fixing seat (301) connected to the second port (102) to close the second port (102). A conversion connecting shaft (302) is rotatably disposed inside the fixing seat (301). One end of the conversion connecting shaft (302) is connected to the rotating shaft (201) of the driving device (200). The driving device (200) is used to drive the conversion connecting shaft (302) to rotate around the axis of the sterile chamber (100). The tool (400) has a mounting portion that extends into the fixed base (301) and is fixedly connected to the other end of the conversion connecting shaft (302). The conversion connecting shaft (302) is used to drive the tool (400) to rotate synchronously. The conversion fixing mechanism (300) further includes a first sealing member (303) for closing the second port (102), the first sealing member (303) being sleeved on the outer peripheral wall of the conversion connecting shaft (302) and abutting against the inner peripheral wall of the fixing seat (301); The sealing cover (103) includes: a cover body (1031), a sealing gasket (1033), a sealing gasket plate (1034), and a sealing gasket fixing plate (1035). One end of the cover (1031) is rotatably connected to the first port (101), and the other end of the cover (1031) can rotate away from or towards the first port (101); The sealing gasket (1033) has a first surface and a second surface opposite each other along the axial direction of the sterile chamber (100). The first surface abuts against the edge of the cover (1031). The first surface is provided with an interlocking protrusion that extends into the cover (1031). The sealing gasket plate (1034) is disposed in the cover (1031) and abuts against the fitting protrusion; The second surface is provided with an annular groove, and the sealing gasket fixing plate (1035) is disposed in the annular groove; The central axes of the sealing gasket plate (1034), the sealing gasket (1033), and the sealing gasket fixing plate (1035) coincide, and the sealing gasket plate (1034), the sealing gasket (1033), and the sealing gasket fixing plate (1035) are connected to the cover (1031) by at least one connector.

2. The scalpel according to claim 1, characterized in that, The conversion fixing mechanism (300) also includes an outer sleeve (305); The fixing seat (301) includes a first connecting section (3011) and a second connecting section (3012) connected axially along the sterile chamber (100). The first connecting section (3011) is connected from the second port (102) into the sterile chamber (100) to close the second port (102). The outer sleeve (305) is fitted onto the outer periphery of the second connecting section (3012); The conversion fixing mechanism (300) further includes an elastic element (306), which surrounds the outer periphery of the second connecting segment (3012), and the two ends of the elastic element (306) along its elastic extension direction are respectively connected to the first connecting segment (3011) and the outer sleeve (305); The elastic extension direction of the elastic element (306) is parallel to the axial direction of the sterile chamber (100).

3. The scalpel according to claim 2, characterized in that, When the outer sleeve (305) is fitted onto the outer periphery of the second connecting section (3012), the abutting surface of the outer sleeve (305) abuts against the second port (102), and the abutting surface is provided with an annular flange (3051). The annular flange (3051) extends into the sterile chamber (100) from the second port (102) and abuts against the inner peripheral wall of the sterile chamber (100) to seal the second port (102) a second time.

4. The scalpel according to claim 3, characterized in that, The conversion fixing mechanism (300) further includes a third sealing element, which is sleeved on the outer peripheral wall of the first connecting section (3011) and abuts against the inner peripheral wall of the sterile chamber (100); and / or, The conversion fixing mechanism (300) further includes a fourth sealing element, which is sleeved on the outer peripheral wall of the annular flange (3051) and abuts against the inner peripheral wall of the sterile chamber (100).

5. The scalpel according to claim 1, characterized in that, The rotating shaft (201) of the drive device (200) has a first locking member, and one end of the conversion connecting shaft (302) is provided with a first guide locking position that matches the first locking member; and / or, The mounting portion of the cutting tool (400) has a second locking member, and the other end of the conversion connecting shaft (302) is provided with a second guide locking position that matches the second locking member.

6. The scalpel according to claim 1, characterized in that, The sealing cover (103) also includes: a movable push block (1032); The movable push block (1032) is disposed inside the cover (1031). One end of the movable push block (1032) has an elastic part (10321), and the other end of the movable push block (1032) has a movable locking part (10322). When the cover (1031) approaches the first port (101), the movable latching part (10322) contacts the fixed latching part (1011) provided on the first port (101) and slides on the contact surface, and compresses the elastic part (10321) so that the movable latching part (10322) engages with the latching surface of the fixed latching part (1011) to complete the locking. The movable push block (1032) has a concave-convex surface (10323). The concave-convex surface (10323) is exposed on the outer surface of the cover (1031) through a slot provided on the cover (1031). When an external force is applied to the concave-convex surface (10323), the movable push block (1032) causes the elastic part (10321) to be compressed, and causes the movable latching part (10322) to disengage from the fixed latching part (1011), thus completing the unlocking.

7. The scalpel according to claim 4, characterized in that, The cutting tool (400) includes: a tool sleeve (401) and a tool body (402). The tool sleeve (401) includes a conical head (4011), which extends into the second connecting section (3012) and engages with the inner peripheral wall of the second connecting section (3012). The tool body (402) is rotatably disposed inside the tool sleeve (401), and the tool connecting part of the tool body (402) extends out from the conical head (4011) and is fixedly connected to the other end of the conversion connecting shaft (302). The tool working part (4022) of the tool body (402) extends from the tail (4012) of the tool sleeve (401).

8. The scalpel according to claim 7, characterized in that, The outer peripheral wall of the conical head (4011) is provided with at least one positioning protrusion (4013), the second connecting section (3012) is provided with a positioning groove (30121) that matches the positioning protrusion (4013), and the outer sleeve (305) is provided with a clearance groove (3052) that allows the positioning protrusion (4013) to pass through.

9. The scalpel according to claim 7, characterized in that, The conversion fixing mechanism (300) also includes a second seal (304); The inner peripheral wall of the second connecting section (3012) is provided with an abutment surface, which is opposite to and spaced from the end face of the conical head (4011) along the axial direction of the sterile chamber (100). The second seal (304) is disposed between the abutment surface and the end face of the conical head (4011).

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