Detachable heat energy knife

Abstract

The utility model discloses a detachable heat knife, and relates to the technical field of medical instruments. In order to solve the problems that an existing heat energy knife is disposable, a handle, a knife rod and a knife head of the existing heat energy knife are fixedly connected and cannot be detached, the handle cannot be recycled, and medical resources are wasted, the following technical scheme is provided: the heat energy knife comprises the knife head, the knife rod, the handle and an unlocking piece mounted in the handle which are connected in sequence; the screwdriver rod comprises an inner screwdriver rod and an outer screwdriver rod connected with the inner screwdriver rod in a sleeved mode, the screwdriver head is connected with the handle through the inner screwdriver rod, the inner screwdriver rod penetrates through a conductive tube in the handle to be movably connected with the screwdriver head, and the unlocking piece is movably connected with the inner screwdriver rod and used for controlling locking and unlocking of the screwdriver rod. According to the utility model, the cutter bar and the handle can be conveniently detached, then the cutter bar and the handle are respectively treated, and the handle can be recycled, cleaned and reused, so that medical resources are saved, waste and environmental pollution are avoided, the structure is simple, and the operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a detachable heat energy knife. BACKGROUND

[0002] In the medical field, cutting and hemostasis are important steps of surgical operation, so modern medicine has produced many cutting methods and hemostasis technologies and corresponding medical equipment devices, and current cutting and hemostasis operation equipment is mainly divided into three categories: one kind adopts mechanical energy to realize cutting and hemostasis effect, and the representative thereof is ultrasonic knife, but its cutting speed is slow, and there is tissue splashing in operation; another kind adopts high-frequency current to heat and produce cutting and hemostasis effect, and the representative thereof is bipolar coagulation cutting knife, monopolar electric knife and the like, but high-frequency electric knife is easy to cause patient's accidental injury; the third kind is heat energy knife, the heat energy knife does not pass current through human tissue when working, and only completes blood vessel closure and tissue cutting through direct heat energy conduction and pressure of the knife head, so it is small in injury and safe, but the existing heat energy knife is disposable, the handle and the knife rod and the knife head are fixedly connected and cannot be detached, the handle cannot be recycled and used, resulting in waste of medical resources, and if not properly disposed, the environment will be polluted. SUMMARY

[0003] The utility model aims at providing a detachable heat energy knife to solve the problem of waste of medical resources caused by the fact that the existing heat energy knife is disposable, the handle and the knife rod and the knife head are fixedly connected and cannot be detached, and the handle cannot be recycled and used.

[0004] The utility model solves the technical problem in the preceding technical scheme as follows:

[0005] A detachable heat energy knife comprises a knife head, a knife rod, a handle and an unlocking piece successively connected, the knife rod comprises an inner knife rod and an outer knife rod sleeved with the inner knife rod, the knife head is connected with the handle through the inner knife rod, the inner knife rod is movably connected with the knife head through a conductive pipe in the handle, the unlocking piece is movably connected with the inner knife rod, and the unlocking piece is used for controlling locking and unlocking of the knife rod.

[0006] As a preferred, the unlocking piece comprises a switching piece, an unlocking button and a reset spring, the top of the switching piece abuts against the reset spring, and the bottom of the switching piece is connected with the unlocking button.

[0007] As a preferred, the switching piece is provided with a locking hole and an unlocking hole at one end close to the top, and the hole diameter of the unlocking hole is greater than that of the locking hole.

[0008] As a preferred, the knife rod further comprises a sleeve pipe and a conductive connector, the sleeve pipe is movably connected with the unlocking piece and forms a cross shape, one end of the sleeve pipe is fixedly connected with the conductive connector, and the other end of the sleeve pipe is fixedly connected with the inner knife rod.

[0009] As preferred, the handle is internally provided with a positive plate and a negative plate, the conductive connector is movably clamped on the positive plate and communicates with the positive wire, the positive wire is arranged inside the inner cutter rod, and the positive wire is in conduction with the heating wire in the cutter head and the outer cutter rod respectively; the outer cutter rod is connected with the conductive pipe, and the conductive pipe is sleeved with the negative plate to make the outer cutter rod in electric conduction with the negative plate.

[0010] As preferred, the negative plate is connected with the control circuit board of the energy excitation control button through the wire, and the negative plate communicates with the negative wire.

[0011] As preferred, the handle comprises a supporting block, the side end of the supporting block is fixedly connected with the hand holding part, and the top of the supporting block is movably hinged with the sliding block.

[0012] As preferred, the upper end of the sliding block is provided with a groove, the groove is used for clamping the mounting block, and the mounting block is used for supporting the unlocking piece and the sleeving pipe.

[0013] The utility model has the following beneficial effects:

[0014] The structure is simple and the operation is convenient: the components of the thermal energy cutter are closely and stably connected, and the operation is simple and convenient.

[0015] The cutter rod and the handle of the thermal energy cutter are connected through threads and the locking and unlocking mechanism of the unlocking piece, so that the cutter rod can be conveniently disassembled for cleaning and disinfection.

[0016] The medical resources can be saved: since the handle can be recycled and reused, the medical resources can be greatly saved.

[0017] The thermal energy cutter is also provided with a smoke suction pipe to suck the smoke generated during the operation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the detachable thermal energy cutter;

[0019] Figure 2 It is an internal structure schematic view of the handle of the detachable thermal energy cutter;

[0020] Figure 3The schematic view of the unlocking piece and the sleeve pipe of the detachable thermal energy knife assembled in the mounting block;

[0021] Figure 4 The schematic view of the unlocking piece and the sleeve pipe of the detachable thermal energy knife connected;

[0022] Figure 5 The schematic view of the sleeve pipe structure of the detachable thermal energy knife;

[0023] Figure 6 The schematic view of the mounting block of the detachable thermal energy knife;

[0024] Figure 7 The schematic view of the sliding block of the detachable thermal energy knife;

[0025] Figures 1 to 7 The reference signs shown in the drawings represent: the tool bit 1, the tool rod 2, the inner tool rod 21, the outer tool rod 22, the sleeve pipe 23, the conductive connector 24, the mounting block 25, the positive plate 26, the negative plate 27, the handle 3, the shell 31, the hand holding part 32, the energy excitation control button 33, the conductive pipe 34, the smoke suction pipe 35, the sliding block 36, the supporting block 37, the unlocking piece 38, the switching piece 381, the locking hole 3811, the unlocking hole 3812, the unlocking button 382, the reset spring 383, and the handle knob 4. DETAILED DESCRIPTION

[0026] The technical solutions of the present application are described in detail below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0027] Please refer to Figures 1-2 The present embodiment provides a detachable thermal energy knife, which comprises a tool bit 1, a tool rod 2, a handle 3 and an unlocking piece 38 mounted in the handle 3 connected in sequence. The following is a detailed description of each component of the thermal energy knife and their mutual connection.

[0028] The tool bit 1 is the working part of the thermal energy knife, used to perform cutting or coagulation operation. The tool bit 1 usually has a sharp tip to be able to penetrate the tissue. The tool bit 1 is internally provided with a heating wire, which generates heat when powered on, so that the tool bit 1 can cut or coagulate the tissue.

[0029] Please refer to Figures 2-3The knife rod 2 is the part connecting the knife head 1 and the handle 3, which plays the role of supporting and transferring energy. The knife rod 2 includes an inner knife rod 21 and an outer knife rod 22. The inner knife rod 21 and the outer knife rod 22 are connected together by threads, which makes the knife rod 2 easily disassembled and replaced. One end of the inner knife rod 21 is connected with the knife head 1, and the other end passes through the conductive tube 34 in the handle 3 and keeps electrically connected with the conductive tube 34. The outer knife rod 22 is connected with the conductive tube 34 of the handle 3 and is electrically connected with the negative plate 27.

[0030] In the knife rod 2, a sleeve pipe 23 and a conductive connector 24 are also arranged. One end of the sleeve pipe 23 is fixedly connected with the conductive connector 24, and the other end is fixedly connected with the inner knife rod 21. The conductive connector 24 is movably clamped on the positive plate 26 and is in communication with the positive lead wire. The positive lead wire passes through the inner knife rod 21 and is in communication with the heating wire in the knife head 1 and the outer knife rod 22. In this way, when the energy excitation control button 33 is pressed, the current can form a loop through the positive plate 26, the conductive connector 24, the inner knife rod 21, the heating wire and the outer knife rod 22, so that the knife head 1 generates heat.

[0031] Referring to Figure 4 , the sleeve pipe 23 is movably clamped with the unlocking piece 38 and is in a cross shape. This clamping manner makes the sleeve pipe 23 rotate and move in the unlocking piece 38, but will not fall off. The middle part of the sleeve pipe 23 is provided with a groove (as shown in Figure 5 ), which is used for clamping with the locking hole 3811 or the unlocking hole 3812 of the unlocking piece 38.

[0032] Referring to Figure 4 , the unlocking piece 38 is the key component for controlling the locking and unlocking of the knife rod 2. The unlocking piece 38 includes a switching piece 381, an unlocking button 382 and a reset spring 383. The switching piece 381 is a cylindrical component with a locking hole 3811 and an unlocking hole 3812 at one end. The locking hole 3811 has a smaller diameter, which is used for clamping with the groove of the sleeve pipe 23, so as to lock the knife rod 2. The unlocking hole 3812 has a larger diameter, and when the sleeve pipe 23 is in the unlocking hole 3812, the sleeve pipe 23 can be pushed out under the elastic force of the positive plate 26 spring, so as to unlock the knife rod 2. The top of the switching piece 381 abuts against the reset spring 383, and the reset spring 383 is used for pushing the switching piece 381 back to the original position after the unlocking button 382 is released. The bottom of the switching piece 381 is connected with the unlocking button 382, and the unlocking button 382 extends out of the shell, so as to facilitate the finger to press the switching piece 381 to switch the hole connected with the sleeve pipe 23.

[0033] Referring to Figure 2 , the handle 3 is the control and operation part of the thermal energy knife. The handle 3 includes a shell 31, a hand holding part 32, an energy excitation control button 33, a conductive tube 34, a smoke suction pipe 35, a sliding block 36, a supporting block 37, a mounting block 25 and other components.

[0034] The housing 31 is the outer shell of the handle 3, used to protect the internal electronic components and mechanical structure. The housing 31 has openings for mounting components such as the energy activation control button 33 and the unlock button 382.

[0035] The grip 32 is the holding part of the handle 3, used by doctors to hold and operate the thermal scalpel. The grip 32 typically has an ergonomic design to improve comfort and stability during use.

[0036] The energy excitation control button 33 is used to control the energy excitation of the thermal scalpel. When the doctor presses the energy excitation control button 33, current flows through the positive and negative plates to form a circuit, thereby generating heat in the scalpel head 1. The energy excitation control button 33 typically has indicator lights or a display screen to show the current operating status or parameters.

[0037] The conductive tube 34 is a tubular component located at the front end of the handle 3, used to connect to the outer tool bar 22 of the tool bar 2 and maintain electrical conductivity. The conductive tube 34 is filled with conductive material to ensure smooth current transmission.

[0038] The fumigation tube 35 is a conduit used to draw smoke generated during surgery from within the scalpel handle 2. The fumigation tube 35 is typically connected to the hospital's fumigation system, which draws in and exhausts smoke from the operating room, thus maintaining cleanliness and air circulation.

[0039] The sliding block 36 is a sliding component located inside the handle 3, used to drive the movement of the inner tool holder 21. The upper end of the sliding block 36 has a groove for engaging the mounting block 25. The mounting block 25 supports the unlocking member 38 and the sleeve tube 23, ensuring they are stably installed inside the handle 3. The rear end of the sliding block 36 has a return spring (note that although this return spring shares the same name as the return spring in the unlocking member 38, they are actually two separate springs), used to push the sliding block 36 back to its original position after the grip 32 is released.

[0040] The support block 37 is a support component located inside the handle 3, used to support components such as the sliding block 36 and the unlocking element 38. The side end of the support block 37 is fixedly connected to the grip 32, and the top is movably hinged to the sliding block 36. This connection method allows the sliding block 36 to slide along the axial direction of the tool holder 2 under the support of the support block 37.

[0041] Mounting block 25 is a component used to support unlocking member 38 and sleeve pipe 23. For example... Figures 6-7As shown, the mounting block 25 generally has a shape and size matching with the upper end groove of the sliding block 36 to ensure that they can be tightly clamped together. The mounting block 25 is also provided with a hole or slot matching with the sleeve pipe 23 for fixing the sleeve pipe 23 inside the handle 3.

[0042] During the operation, the doctor can operate the thermal energy knife by holding the handgrip 32. When it is needed to cut or coagulate the tissue, the doctor can press the energy trigger control button 33 to form a loop of electric current through the positive and negative electrode plates, so that the knife head 1 generates heat. At the same time, the doctor can drive the sliding block 36 to slide along the axial direction of the knife rod 2 by sliding the handgrip 32, thereby driving the movement of the inner knife rod 21 to control the opening and closing of the knife head 1. Specifically, when the handgrip 32 is pressed down with the unlocking member 38 in the locked state, the sliding block 36 is driven to slide along the axial direction of the knife rod by the support block 37, and the inner knife rod 21 is pushed to move backward, and the knife head 1 is closed under the driving of the inner knife rod 21; when the handgrip 32 is released, the sliding block 36 slides forward under the restoring force of the reset spring arranged on the rear end thereof, and the inner knife rod 21 is driven to move forward to open the knife head 1.

[0043] When the operation is completed, and the doctor needs to disassemble the knife rod 2 for cleaning and disinfection, the doctor can unlock the knife rod 2 by pressing the unlocking button 382. Specifically, the doctor can press the unlocking button 382 to align the unlocking hole 3812 of the switching member 381 with the groove of the sleeve pipe 23. Then, the doctor can rotate the handle knob 4 (which can be understood as a fastening component arranged on the handle 3 for threadedly connecting with the knife rod 2) to disassemble the knife rod 2 from the handle 3. The disassembled knife rod 2 can be cleaned and disinfected, and the handle 3 can be recycled and reused after cleaning.

[0044] In summary, the specific embodiment provides a detachable thermal energy knife which has a simple structure, is convenient to operate, is convenient to disassemble and clean, saves medical resources, and has a smoking function. The thermal energy knife can be widely applied to various operations to provide efficient, safe and sanitary operation tools for doctors.

[0045] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A detachable thermal energy knife, characterized in that, The utility model relates to a multi-functional electric knife, which comprises a cutter head (1), a cutter rod (2), a handle (3) and an unlocking device (38) installed in the handle (3) connected in sequence. The unlocking device (38) comprises a switching device (381), an unlocking button (382) and a reset spring (383), the top of the switching device (381) is in abutment with the reset spring (383), and the bottom of the switching device (381) is connected with the unlocking button (382).

2. The detachable heat energy knife of claim 1, wherein, The switching device (381) is provided with a locking hole (3811) and an unlocking hole (3812) at one end close to the top, and the diameter of the unlocking hole (3812) is larger than that of the locking hole (3811).

3. The detachable heat energy knife of claim 2, wherein, The cutter rod (2) further comprises a sleeve pipe (23) and a conductive connector (24), the sleeve pipe (23) is movably connected with the unlocking device (38) and has a cross shape, one end of the sleeve pipe (23) is fixedly connected with the conductive connector (24), and the other end of the sleeve pipe (23) is fixedly connected with the inner cutter rod (21).

4. The detachable heat energy knife of claim 1, wherein, The handle (3) is provided with a positive plate (26) and a negative plate (27), the conductive connector (24) is movably connected with the positive plate (26) and communicates with a positive lead wire, the positive lead wire is arranged in the inner cutter rod (21), and the positive lead wire communicates with a heating wire in the cutter head (1) and the outer cutter rod (22); the outer cutter rod (22) is connected with the conductive pipe (34), and the conductive pipe (34) is sleeved with the negative plate (27) so that the outer cutter rod (22) and the negative plate (27) are in electrical conduction.

5. The detachable heat energy knife of claim 4, wherein, The negative plate (27) is connected with a control circuit board of an energy excitation control button (33) through a lead wire, and the negative plate (27) communicates with a negative lead wire.

6. The detachable heat energy knife of claim 5, wherein, The handle (3) comprises a supporting block (37), the side end of the supporting block (37) is fixedly connected with a hand holding part (32), and the top of the supporting block (37) is movably hinged with a sliding block (36).

7. The detachable thermal energy knife of claim 6, wherein, The upper end of the sliding block (36) is provided with a groove for clamping an installation block (25), and the installation block (25) is used for supporting the unlocking device (38) and the sleeve pipe (23).

8. The detachable heat energy knife of claim 7, wherein, ​

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