Low-temperature plasma tool bit capable of achieving multi-angle conversion
By designing a low-temperature plasma blade that can be converted to multiple angles, the problem of having to replace the blade when the angle is fixed has been solved, thus improving surgical efficiency and reducing costs.
Patent Information
- Application Number
- CN202422623253.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-10-29
AI Technical Summary
Existing low-temperature plasma scalpels used in orthopedic surgery have fixed angles, requiring the replacement of scalpels with different angles, which leads to prolonged operation time, low efficiency, and increased medical costs.
A low-temperature plasma cutter head with multi-angle conversion was designed, including a cutter head unit and an operation unit. The cutter head can be flexibly adjusted from 0° to 90° through a multi-position cutter head angle adjustment component, simplifying the operation process.
It improved surgical efficiency, shortened surgical time, reduced the use of consumables, and lowered the medical costs for patients.
Smart Images
Figure CN223438631U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a low temperature plasma tool bit, concretely relates to a low temperature plasma tool bit for multi-angle conversion belongs to orthopedics technical field. BACKGROUND
[0002] The existing low temperature plasma tool bit is mainly used for low temperature plasma radiofrequency ablation in orthopedic surgery, and the technology has the advantages of minimally invasive, safety and small trauma, and is suitable for the treatment of various orthopedic diseases.
[0003] Low temperature plasma radiofrequency ablation utilizes high-energy plasma field to decompose tissue molecules, acts on the inside of intervertebral disc, vaporizes and ablates part of intervertebral disc nucleus pulposus tissue, and reduces the volume of nucleus pulposus through thermal crumpling technology, reduces the pressure in intervertebral disc, relieves the pressure on nerve root, and thus relieves clinical symptoms. The surgical process includes inserting a puncture needle into the intervertebral disc under the guidance of DSA, introducing a low temperature plasma tool bit for ablation, and the whole process is about 10 minutes, and there is almost no bleeding during the operation, and the patient can recover quickly after the operation.
[0004] The low temperature plasma tool bit used in the prior art includes 0°, 30°, 60° and 90° fixed angle tool bits, and the angle cannot be changed and adjusted. When the fixed angle plasma tool bit is used in the clinical process, different angle plasma tool bits need to be replaced according to the different angles or special positions in the operation, so as to meet the clinical requirements and effects, which makes the use very inconvenient, not only lengthens the operation time, but also is low in efficiency, and at the same time, too much consumables are used, which increases the medical cost of the patient. SUMMARY
[0005] The utility model aims at: provide a kind of low temperature plasma tool bit of multi-angle conversion, which can flexibly adjust the angle of tool bit itself during operation, avoid replacing different fixed angle tool bits due to demand during operation, and improve surgical efficiency and shorten operation time.
[0006] To achieve the above object, the technical scheme of the utility model is as follows: a low temperature plasma tool bit of multi-angle conversion, the innovation point is that: including tool bit unit and operating unit,
[0007] The tool bit unit includes tool bit, swing bar, core rod and outer sleeve tube, the tail of the tool bit is rotatably connected with one end of the swing bar, the head of one end of the core rod is rotatably connected with the other end of the swing bar, and the core rod is arranged in the outer sleeve tube, and at the same time, the tool bit is also hingedly connected with the end of the outer sleeve tube,
[0008] The operating unit includes handle and tool bit angle multi-gear adjusting assembly, the tool bit angle multi-gear adjusting assembly is arranged in the handle, the other end of the core rod is inserted into the handle, and the tail of the other end of the core rod is assembled and connected with the tool bit angle multi-gear adjusting assembly,
[0009] The knife head angle multi-gear adjusting assembly is controlled and the core rod is pushed synchronously, under the action of the swing rod, the tail of the knife head rotates relative to the swing rod, and the head thereof rotates around the hinge point, so that the rotation angle of the knife head relative to the outer sleeve is changed.
[0010] In the above technical solution, the knife head angle multi-gear adjusting assembly comprises a knife head rotating slider, a spring and a gear adjusting seat, the gear adjusting seat is arranged on the handle, a plurality of gear tooth grooves are arranged on the gear adjusting seat, the knife head rotating slider is arranged in the slot hole of the gear adjusting seat, and the locking teeth arranged on the knife head rotating slider are engaged with one of the gear tooth grooves in the gear adjusting seat, the tail of the core rod is provided with a connecting rod arranged along the radial direction of the core rod, the connecting rod is detachably connected with the knife head rotating slider, the spring is sleeved on the outer periphery of the connecting rod, and the two ends of the spring are respectively abutted against the knife head rotating slider and the core rod, the locking teeth are separated from the corresponding gear tooth groove by pressing the knife head rotating slider, at this time, the spring is in a compressed state, the knife head rotating slider is pushed synchronously to slide in the slot hole of the gear adjusting seat and move one gear tooth groove, the knife head rotating slider is released and reset under the action of the spring, the locking teeth of the knife head rotating slider are engaged with the gear tooth groove, and locking is realized.
[0011] In the above technical solution, one of the gear tooth grooves on the gear adjusting seat can make the knife head rotate by 10°, and the gear adjusting seat can make the knife head realize angle conversion from 0° to 90°.
[0012] In the above technical solution, the knife head rotating slider comprises a slider and a button, the button is arranged on the surface of the slider, locking teeth are arranged on the slider and located on both sides of the button, the slider is arranged in the slot hole of the gear adjusting seat, and an inner hole column is arranged on the back surface of the slider, the inner hole column is detachably connected with the connecting rod.
[0013] In the above technical solution, the operation unit further comprises a handle end cover, the handle end cover is detachably connected with the handle, and the outer sleeve is abutted against the handle end cover.
[0014] In the above technical solution, the operation unit further comprises a handle end cover, the handle end cover is detachably connected with the handle, the handle end cover has a hidden groove, and part of the slider slides into the hidden groove of the handle end cover when the slider slides relative to the gear adjusting seat towards the direction of the core rod.
[0015] In the above technical solution, the knife head is hingedly connected with the end of the outer sleeve through a hinge shaft arranged along the radial direction of the knife head.
[0016] In the above technical scheme, the tail part of the tool head has a swing rod connecting part, the swing rod connecting part has an insertion slot, the head part of the core rod has a slot, one end of the swing rod is inserted into the insertion slot of the swing rod connecting part and is rotationally connected with the swing rod connecting part through a front connecting shaft, and the other end of the swing rod is inserted into the slot of the core rod and is rotationally connected with the core rod through a rear connecting shaft.
[0017] In the above technical scheme, the insertion slot of the swing rod connecting part and the slot of the core rod are both U-shaped slots.
[0018] In the above technical scheme, the swing rod comprises a straight section and an eccentric section which are connected as a whole, the straight section is rotationally connected with the core rod through the rear connecting shaft, and the eccentric section is rotationally connected with the swing rod connecting part through the front connecting shaft.
[0019] The low-temperature plasma tool head with multi-angle conversion has the following positive effects: the low-temperature plasma tool head with multi-angle conversion comprises a tool head unit and an operation unit,
[0020] The tool head unit comprises a tool head, a swing rod, a core rod and an outer sleeve, the tail part of the tool head is rotationally connected with one end of the swing rod, the head part of one end of the core rod is rotationally connected with the other end of the swing rod, the core rod is arranged in the outer sleeve, and meanwhile, the tool head is hingedly connected with the end part of the outer sleeve,
[0021] The operation unit comprises a handle and a tool head angle multi-gear adjusting assembly, the tool head angle multi-gear adjusting assembly is arranged in the handle, the other end of the core rod is inserted into the handle, and the tail part of the other end of the core rod is assembled and connected with the tool head angle multi-gear adjusting assembly,
[0022] Controlling the tool head angle multi-gear adjusting assembly and synchronously pushing the core rod, under the action of the swing rod, the tail part of the tool head rotates relative to the swing rod, and the head part thereof rotates around the hinged supporting point, so that the tool head rotates at an angle relative to the outer sleeve,
[0023] The utility model discloses a tool head unit and operation unit that can control the rotation angle of the tool head, cover the clinical application of the single fixed angle tool head of the prior art 0 DEG, 30 DEG, 60 DEG, 90 DEG and the like, the utility model can push the core rod synchronously through the tool head angle multi-gear adjusting assembly of the operation unit according to the operation demand in the operation, the tool head rotates under the action of the swing rod, treats the patient part of different angles or special positions in the operation, replaces the scheme that the fixed angle tool head is used in the prior art and needs to replace the plasma tool head of different angles in the operation process, not only solves the inconvenience in the operation, makes control and use very convenient, and improves the operation efficiency, saves the time of replacing the plasma tool head of different angles, greatly shortens the operation time, simultaneously also avoids using too many consumables, reduces the medical cost for the patient. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 is a structural schematic view of a specific embodiment of the utility model;
[0025] Figure 2 is a three-dimensional structural schematic view of the tool bit unit of the utility model (with the outer sleeve removed);
[0026] Figure 3 is a three-dimensional structural schematic view of the tool bit angle multi-gear adjusting assembly of the utility model;
[0027] Figure 4 is Figure 3 another direction schematic view (with the gear adjusting seat removed);
[0028] Figure 5 is a three-dimensional structural schematic view of the utility model. DETAILED DESCRIPTION
[0029] The utility model is further described below in combination with the drawings and the embodiments given, but is not limited thereto.
[0030] As Figure 1 , 2 , 3, 4, 5 show, a low temperature plasma tool bit of multi-angle conversion, including tool bit unit 1 and operating unit 2,
[0031] The tool bit unit 1 includes tool bit 11, swing lever 12, core rod 13 and outer sleeve 14, the tail of tool bit 11 is rotatably connected with one end of swing lever 12, the head of one end of core rod 13 is rotatably connected with the other end of swing lever 12, the core rod 13 is arranged in outer sleeve 14, simultaneously, tool bit 11 is also hingedly connected with the end of outer sleeve 14,
[0032] The operating unit 2 includes handle 21 and tool bit angle multi-gear adjusting assembly, the tool bit angle multi-gear adjusting assembly is arranged in handle 21, the other end of core rod 13 is inserted into handle 21, and the tail of the other end of core rod 13 is assembled with tool bit angle multi-gear adjusting assembly,
[0033] Controlling tool bit angle multi-gear adjusting assembly and synchronously pushing core rod 3, under the action of swing lever 12, the tail of tool bit 11 is rotatable relative to swing lever 12, and its head is rotatable around the hinge support point, so that tool bit 11 rotates relative to outer sleeve 14.
[0034] As Figure 1 , 3As shown, in order to facilitate the rotation angle of the knife head, to adapt to the treatment of different angles or special position of the patient part, the knife head angle multi-gear adjustment assembly includes a knife head rotating slider 22, a spring 23 and a gear adjustment seat 24, the gear adjustment seat 24 is arranged on the handle 21, and a plurality of gear teeth grooves 241 are arranged on the gear adjustment seat 24, the knife head rotating slider 22 is arranged in the slot hole of the gear adjustment seat 24, and the locking teeth 221 arranged on the knife head rotating slider 22 are engaged with one of the gear teeth grooves in the gear adjustment seat 24, the tail of the core rod 13 is provided with a connecting rod 131 arranged along the radial direction, the connecting rod 131 is detachably connected with the knife head rotating slider 22, the spring 23 is sleeved on the outer periphery of the connecting rod 131, and the two ends of the spring 23 are respectively abutted with the knife head rotating slider 22 and the core rod 13. Press the knife head rotating slider 22, the locking teeth 221 are separated from the corresponding gear teeth groove, at this time, the spring 23 is in a compressed state, and the knife head rotating slider 22 is pushed to slide in the slot hole of the gear adjustment seat 24 and move one gear teeth groove, the knife head rotating slider 22 is released and reset under the action of the spring 23, so that the locking teeth 221 of the knife head rotating slider 22 are engaged with the gear teeth groove, and locking is realized.
[0035] Further, in order to make the angle of the knife head adjustable from 0° to 90°, one gear teeth groove on the gear adjustment seat 24 can make the knife head 11 rotate by 10°, and there are nine gear adjustments on the gear adjustment seat 24, the gear adjustment seat 24 can make the knife head 11 realize the angle conversion from 0° to 90°, which covers all existing fixed single-angle products, and improves the operation efficiency of doctors and saves the time of replacing plasma knife heads with different angles.
[0036] As shown in the Figure 4 In order to facilitate the doctor to control the conversion of the angle of the knife head with one hand, the structure is compact and reasonable, the knife head rotating slider 22 includes a slider 222 and a button 223, the button 223 is arranged on the surface of the slider 222, and the locking teeth 221 are arranged on the slider 222 and located on both sides of the button 223, the slider 222 is arranged in the slot hole of the gear adjustment seat 24, and the back of the slider 222 is provided with an inner hole column 224, and the inner hole column 224 is detachably connected with the connecting rod 131.
[0037] As shown in the Figure 1 , 5 In order to ensure the sealing of the handle as a whole, the operation unit 2 further includes a handle end cover 25, the handle end cover 25 is detachably connected with the handle 21, and the outer sleeve 14 abuts against the handle end cover 25.
[0038] As shown in the Figure 1As shown, in order to guarantee the linear movement of the slider, and the part segment has corresponding accommodation space after moving, so that the structure is more reasonable, the operation unit 2 further comprises a handle end cover 25, which is detachably connected with the handle 21, and the handle end cover 25 has a hidden groove, when the slider 222 slides towards the direction of the core rod 13 relative to the gear adjusting seat 24, part of the slider slides into the hidden groove of the handle end cover 25.
[0039] As shown in Figure 2 , 5 in order to realize different rotation angles of the tool head, the tool head 11 is hingedly connected with the end of the outer sleeve 14 through the radial arrangement of the hinge shaft 15.
[0040] As shown in Figure 2 , the tail of the tool head 11 has a swing rod connecting part 111 with a plug-in slot, the head of the core rod 13 has a notch, one end of the swing rod 12 is inserted into the plug-in slot of the swing rod connecting part 111 and is rotationally connected with the swing rod connecting part 111 through the front connecting shaft 16, and the other end of the swing rod 12 is inserted into the notch of the core rod 13 and is rotationally connected with the core rod 13 through the rear connecting shaft 17.
[0041] Specifically, when the core rod 13 is pushed, the two ends of the swing rod 12 rotate around the front connecting shaft 16 and the rear connecting shaft 17, at the same time, the tool head 11 rotates around the hinge shaft 15 under the restriction of the hinge shaft 15, so that the head of the tool head 11 rotates and the tail rotates, thereby realizing the overall angle conversion of the tool head 11.
[0042] As shown in Figure 2 , further improve the structural rationality, so that the swing rod is not limited by space during rotation, the plug-in slot of the swing rod connecting part 111 and the notch of the core rod 13 are both U-shaped slots.
[0043] As shown in Figure 2 , in order to guarantee that the swing rod rotates while driving the angle conversion of the tool head, the swing rod 12 comprises a straight section 121 and an eccentric section 122 connected as one, the straight section 121 is rotationally connected with the core rod 13 through the rear connecting shaft 17, and the eccentric section 122 is rotationally connected with the swing rod connecting part 111 through the front connecting shaft 16.
[0044] The utility model discloses a button 223 of pressing the cutter head rotating slider 22 is in the process for operation, the lock tooth 221 is separated with corresponding gear tooth groove, the slider 222 is along the slot of gear adjustment seat 24 sliding, at this time, the spring 23 is in compression state, simultaneously pushes the button 223 of cutter head rotating slider 22, makes it slide in the slot of gear adjustment seat 24, will promote the core pole 3 simultaneously, under the action of swing lever 12, the head of cutter head 11 rotates around the hinge support shaft 15, the tail rotates around the front connecting axle 16, thereby realizes the rotation of cutter head 11 relative to the sleeve pipe 14, every time promotes the slider 222 and moves a gear tooth groove on gear adjustment seat 24, cutter head 11 rotates 10, according to the need of the treatment of different angles or special position in operation adjusts the angle of cutter head, then releases the button 223 of cutter head rotating slider 22 and resets under the action of spring 23, makes the lock tooth 221 of cutter head rotating slider 22 and this gear tooth groove meshing abuts, realizes the locking of cutter head current angle.
[0045] Therefore, the utility model discloses the cutter head through the operation unit slot swing lever, and then realizes the conversion of different angles under the action of swing lever, and treats the sick part of different angles or special position in operation, replaces the scheme of using fixed angle cutter head in the prior art and still needs to replace the plasma cutter head of different angles in the operation process, not only solves the inconvenience in operation, makes control and use very convenient, and improves the operation efficiency, saves the time of replacing the plasma cutter head of different angles, greatly shortens the operation time, simultaneously also avoids using too much consumables, reduces the medical cost for the patient.
[0046] The above ideal embodiment according to the utility model is inspired, and through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the utility model. The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.
Claims
1. A low-temperature plasma cutter head capable of multi-angle conversion, characterized in that: It comprises a cutter head unit (1) and an operating unit (2), The cutter head unit (1) comprises a cutter head (11), a rocker arm (12), a core rod (13) and an outer sleeve (14). The tail of the cutter head (11) is rotatably connected to one end of the rocker arm (12), and the head of one end of the core rod (13) is rotatably connected to the other end of the rocker arm (12). The core rod (13) is arranged in the outer sleeve (14). At the same time, the cutter head (11) is also hingedly connected to the end of the outer sleeve (14). The operating unit (2) comprises a handle (21) and a blade angle multi-speed adjustment component, wherein the blade angle multi-speed adjustment component is arranged in the handle (21), the other end of the core rod (13) is inserted into the handle (21), and the tail of the other end of the core rod (13) is assembled and connected with the blade angle multi-speed adjustment component. The multi-stage adjustment component for the cutter head angle is controlled and the core rod (13) is pushed synchronously. Under the action of the swing rod (12), the tail of the cutter head (11) rotates relative to the swing rod (12), and the head thereof rotates around the hinge point, so that the cutter head (11) rotates relative to the outer sleeve (14).
2. The multi-angle-adjustable low-temperature plasma cutter head according to claim 1, characterized in that: The multi-speed adjustment component of the cutter head angle comprises a cutter head rotating slider (22), a spring (23) and a speed adjustment seat (24); the speed adjustment seat (24) is arranged on the handle (21), and a plurality of speed tooth grooves (241) are provided on the speed adjustment seat (24); the cutter head rotating slider (22) is arranged in the slot of the speed adjustment seat (24), and the lock teeth (221) provided on the cutter head rotating slider (22) are engaged with a speed tooth groove in the speed adjustment seat (24); the tail of the core rod (13) is provided with a connecting rod (131) arranged along its radial direction, and the connecting rod (131) and the cutter head rotating slider (22) are detachable. The spring (23) is connected to the outer periphery of the connecting rod (131), and the two ends of the spring (23) are respectively against the cutter head rotating slider (22) and the core rod (13). The cutter head rotating slider (22) is pressed, and the locking teeth (221) are separated from the corresponding gear tooth groove. At this time, the spring (23) is in a compressed state and pushes the cutter head rotating slider (22) to slide in the slot of the gear adjustment seat (24) and move a gear tooth groove. The cutter head rotating slider (22) is released and reset under the action of the spring (23), so that the locking teeth (221) of the cutter head rotating slider (22) are engaged with the gear tooth groove and against each other to achieve locking.
3. The multi-angle-adjustable low-temperature plasma cutter head according to claim 2, characterized in that: A gear tooth groove on the gear adjustment seat (24) can rotate the cutter head (11) by 10 degrees, and the gear adjustment seat (24) can enable the cutter head (11) to achieve an angle conversion from 0 degrees to 90 degrees.
4. The multi-angle-adjustable low-temperature plasma cutter head according to claim 2, characterized in that: The cutter head rotating slider (22) comprises a slider (222) and a button (223), wherein the button (223) is arranged on the surface of the slider (222), and locking teeth (221) are arranged on the slider (222) and on both sides of the button (223), the slider (222) is arranged in a slot of the gear adjustment seat (24), and an inner hole column (224) is provided on the back of the slider (222), and the inner hole column (224) is detachably connected to the connecting rod (131).
5. The multi-angle-adjustable low-temperature plasma cutter head according to claim 1, characterized in that: The operating unit (2) further comprises a handle end cover (25), the handle end cover (25) being detachably connected to the handle (21), and the outer sleeve (14) being in abutment with the handle end cover (25).
6. The multi-angle-adjustable low-temperature plasma cutter head according to claim 4, characterized in that: The operating unit (2) further comprises a handle end cover (25), the handle end cover (25) being detachably connected to the handle (21), and the handle end cover (25) having an invisible groove, and when the slider (222) slides relative to the gear adjustment seat (24) toward the core rod (13), a portion of the slider slides into the invisible groove of the handle end cover (25).
7. The multi-angle-adjustable low-temperature plasma cutter head according to claim 1, characterized in that: The cutter head (11) is hingedly connected to the end of the outer sleeve (14) via a hinge shaft (15) arranged along its radial direction.
8. The multi-angle-adjustable low-temperature plasma cutter head according to claim 1, characterized in that: The tail of the cutter head (11) has a rocker connecting portion (111), the rocker connecting portion (111) has an insertion notch, the head of the core rod (13) has a slot, one end of the rocker (12) is inserted into the insertion notch of the rocker connecting portion (111), and is rotatably connected to the rocker connecting portion (111) via a front connecting shaft (16), the other end of the rocker (12) is inserted into the slot of the core rod (13), and is rotatably connected to the core rod (13) via a rear connecting shaft (17).
9. The multi-angle-adjustable low-temperature plasma cutter head according to claim 8, characterized in that: The insertion notch of the rocker connecting portion (111) and the notch of the core rod (13) are both U-shaped notches.
10. The multi-angle-adjustable low-temperature plasma cutter head according to claim 8, characterized in that: The rocker arm (12) comprises a straight section (121) and an eccentric section (122) connected as one body, wherein the straight section (121) is rotationally connected to the core rod (13) via a rear connecting shaft (17), and the eccentric section (122) is rotationally connected to the rocker arm connecting portion (111) via a front connecting shaft (16).