Positioning cutting machining tool for high-frequency surgical instrument knife tube wrapped with heat shrink tube

Abstract

The utility model discloses a tool for positioning, cutting and processing a high-frequency surgical instrument after wrapping a heat shrink tube with a knife tube. Comprising a bottom plate and a cutting mechanism, the cutting mechanism comprises an outer positioning seat, a front positioning seat and a supporting frame, the outer positioning seat, the front positioning seat and the supporting frame are all arranged on the top end face of the bottom plate, inner holes are formed in the surfaces of the outer positioning seat and the front positioning seat in a penetrating mode, the inner sides of the inner holes are movably connected with workpieces, and outer positioning seats are arranged at the joints of the outer positioning seat and the workpieces; the other end of the front positioning seat is movably connected with a hand wheel, a positioning shaft is arranged between the hand wheel and the front positioning seat, a bearing is arranged at the joint of the positioning shaft and the inner hole, and a hand wheel gasket is arranged at the joint of the positioning shaft and the hand wheel. And one end of the positioning shaft penetrates through the hand wheel and is positioned on the back of the hand wheel. Cost is effectively reduced, the blade is easy to replace, stable and reliable, noise of the working environment is reduced, and simplicity and reliability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical applications of high-frequency current, and more specifically to a positioning and cutting processing tooling for a high-frequency surgical instrument cutter tube wrapped with a heat-shrinkable tube. Background Technique

[0002] High-frequency electrosurgical technology is a medical application of high-frequency current. Through the thermal effect generated by the high-frequency current flowing through human tissues, the expected cutting and coagulation effects can be achieved. By applying pressure and high-frequency energy output, blood vessels, tissue bundles, and lymphatic vessels with a diameter of less than 7 mm can be closed, and a systolic blood pressure more than three times that of the human body can be formed. The success rate of the closed band can reach more than 95%.

[0003] Since most of the heat-shrinkable tubes used for product insulation have the characteristic of shrinking when heated, it is necessary to cut off the redundant parts at both ends of the heat-shrinkable tube. In most current designs and production processes, after fixing the workpiece, a rotating disc is usually used, with the blade installed on the disc. The disc is rotated by a motor, and the blade is then driven by an electric or pneumatic drive structure to reach the required size to cut the heat-shrinkable tube. Its structure is complex, the processing cost is high, the blade stroke needs to be adjusted multiple times during use to cut the heat-shrinkable tube on the workpiece, and the blade needs to be adjusted again after the blade becomes blunt. At the same time, there is a risk of the blade breaking and flying out during the rotation process. For this reason, we propose a positioning and cutting processing tooling for a high-frequency surgical instrument cutter tube wrapped with a heat-shrinkable tube. Content of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a positioning and cutting processing tooling for a high-frequency surgical instrument cutter tube wrapped with a heat-shrinkable tube, which can effectively reduce the processing cost, make the replacement of the blade more convenient and simple, and the blade stroke during operation can be simply adjusted. The adjusted blade is stable and reliable, without worrying about the risk after the blade breaks. At the same time, the noise in the working environment is reduced, achieving the purpose of simplicity and reliability.

[0005] To solve the above technical problems, the utility model provides the following technical solutions:

[0006] A positioning and cutting processing tooling for a high-frequency surgical instrument cutter tube after being coated with a heat-shrinkable tube, comprising a bottom plate and a cutting mechanism. The cutting mechanism includes an outer positioning seat, a front positioning seat and a support frame. The outer positioning seat, the front positioning seat and the support frame are all arranged on the top end face of the bottom plate. The surfaces of the outer positioning seat and the front positioning seat are both provided with a first inner hole and a second inner hole in a through manner. A workpiece is movably connected inside the first inner hole. An outer positioning is provided at the connection between the outer positioning seat and the workpiece. A first bearing is provided at the connection between the outer positioning and the first inner hole. An outer positioning nut is provided at one end of the outer positioning located on the back of the outer positioning seat. A handwheel is movably connected to the other end of the front positioning seat. A positioning shaft is provided between the handwheel and the front positioning seat. A second bearing is provided at the connection between the positioning shaft and the second inner hole. And a handwheel gasket is provided at the connection between the positioning shaft and the handwheel. One end of the positioning shaft penetrates through the handwheel and is located on the back of the handwheel and is provided with a locking gasket.

[0007] A cylinder, a manual valve bracket and a manual valve are respectively provided at the top end of the support frame. A blade bracket is provided on one side of the manual valve. A card slot is opened on the surface of the blade bracket. A blade is movably connected inside the card slot. An adjustment positioning is provided at the top end of the outer positioning seat. An adjustment screw is provided at the connection between the adjustment positioning and the cylinder.

[0008] The size of the blade corresponds to that of the card slot. An adjustment bolt is provided at the connection between the blade and the blade bracket.

[0009] A protective wheel disc and a handle are provided on the handwheel. An anti-slip sleeve is sleeved outside the handle.

[0010] Compared with the prior art, the beneficial effects that the utility model can achieve are:

[0011] By setting the cutting mechanism, the processing cost can be effectively reduced, the replacement of the blade becomes more convenient and simple, and the stroke of the blade during operation can be simply adjusted. The adjusted blade is stable and reliable, without worrying about the risk after the blade breaks. At the same time, the noise of the working environment is reduced, achieving the purpose of being simple and reliable. Description of the Drawings

[0012] Figure 1 It is a structural schematic diagram of a positioning and cutting processing tooling for a high-frequency surgical instrument cutter tube after being coated with a heat-shrinkable tube;

[0013] Figure 2 It is an exploded structural schematic diagram of a positioning and cutting processing tooling for a high-frequency surgical instrument cutter tube after being coated with a heat-shrinkable tube;

[0014] Figure 3 It is an exploded sectional structural schematic diagram of a positioning and cutting processing tooling for a high-frequency surgical instrument cutter tube after being coated with a heat-shrinkable tube.

[0015] Wherein: 1. Manual valve; 2. Cylinder; 3. Blade support; 4. Blade; 5. Adjusting reference position; 6. Adjusting screw; 7. External positioning; 8. Workpiece; 9. Base plate; 10. First bearing; 11. External positioning seat; 12. External positioning nut; 13. Second bearing; 14. Front positioning seat; 15. Positioning shaft; 16. Handwheel gasket; 17. Locking gasket; 18. Support frame; 19. Manual valve support; 20. Handwheel.

[0016] The above-mentioned components are all purchased from the market. Specific implementation mode

[0017] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present utility model. The experimental methods in the following embodiments are all conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments can all be obtained from commercial channels unless otherwise specified.

[0018] Embodiment 1:

[0019] As Figures 1 - 3 shown, a positioning cutting processing tooling for a high-frequency surgical instrument knife tube after being coated with a heat shrinkable tube includes a base plate 9 and a cutting mechanism. The cutting mechanism includes an external positioning seat 11, a front positioning seat 14 and a support frame 18. The external positioning seat 11, the front positioning seat 14 and the support frame 18 are all arranged on the top end face of the base plate 9. The surfaces of the external positioning seat 11 and the front positioning seat 14 are both provided with a first inner hole and a second inner hole in a penetrating manner. A workpiece 8 is movably connected inside the first inner hole. An external positioning 7 is provided at the connection between the external positioning seat 11 and the workpiece 8. A first bearing 10 is provided at the connection between the external positioning 7 and the first inner hole. An external positioning nut 12 is provided at one end of the external positioning 7 located on the back of the external positioning seat 11. A handwheel 20 is movably connected to the other end of the front positioning seat 14. A positioning shaft 15 is provided between the handwheel 20 and the front positioning seat 14. A second bearing 13 is provided at the connection between the positioning shaft 15 and the second inner hole, and a handwheel gasket 16 is provided at the connection between the positioning shaft 15 and the handwheel 20. One end of the positioning shaft 15 penetrates through the handwheel 20 and is located on the back of the handwheel 20 and is provided with a locking gasket 17; A cylinder 2, a manual valve support 19 and a manual valve 1 are respectively provided at the top end of the support frame 18. A blade support 3 is provided on one side of the manual valve 1. A card slot is provided on the surface of the blade support 3. A blade 4 is movably connected inside the card slot. An adjusting reference position 5 is provided at the top end of the external positioning seat 11. An adjusting screw 6 is provided at the connection between the adjusting reference position 5 and the cylinder 2; The size of the blade 4 corresponds to that of the card slot, and an adjusting bolt is provided at the connection between the blade 4 and the blade support 3; The handwheel 20 has a wheel disc and a handle, and an anti-slip sleeve is sleeved on the outside of the handle.

[0020] High-frequency electrosurgical technology is a medical application of high-frequency current. Through the thermal effect generated by the high-frequency current flowing through human tissues, the expected cutting and coagulation effects can be achieved. By applying pressure and high-frequency energy output, blood vessels, tissue bundles, and lymphatic vessels with a diameter of less than 7 mm can be closed, and a systolic blood pressure more than three times that of the human body can be formed. The success rate of the closed band can reach more than 95%;

[0021] Since most of the heat shrinkable tubes used for product insulation have the characteristic of shrinking when heated, it is necessary to cut off the excess parts at both ends of the heat shrinkable tube. In most current designs and production processes, after fixing the workpiece, a rotating disc is often used, with the blade installed on the disc. The motor drives the disc to rotate, and the blade uses an electric or pneumatic drive structure to drive the blade to the required size to cut the heat shrinkable tube. Its structure is complex, the processing cost is high, and during use, the blade stroke needs to be adjusted multiple times to cut the heat shrinkable tube on the workpiece. Moreover, when the blade becomes dull, replacing the blade requires re-adjustment again. At the same time, there is a risk of the blade breaking and flying out during the rotation process of this design;

[0022] The workpiece wrapped with the heat shrinkable tube is inserted through the hole in the middle of the outer positioning (the outer positioning is made of ABS material to avoid scratching the heat shrinkable tube). The end is fitted with the positioning shaft to control the size of 8 mm. Pull the manual valve (pneumatic) to drive the cylinder forward (a blade holder is installed on the cylinder drive component, and a cutting blade is installed on the blade holder). The blade cuts into the heat shrinkable tube, and then turn the handwheel to make it rotate one week. At this time, the heat shrinkable tube should be cut off. Take out the workpiece and remove the excess heat shrinkable tube;

[0023] One base plate is used to be fixed on the operating table (with holes, screws can be drilled, or it can be fixed with a pressing plate), fixing the outer positioning seat, the front positioning seat and the support frame, so that they can be installed in the corresponding positions. The workpiece is placed into the inner hole of the outer positioning (the outer positioning uses ABS material to avoid scratching the workpiece and affecting its appearance), and it goes forward until the front end fits with the positioning shaft, ensuring that the front end of the workpiece and the heat shrinkable tube to be cut off are within the requirement of 8MM. The outer positioning is assembled with the bearing, so that the workpiece can rotate around the axis when it is subjected to excessive frictional force to avoid damage to the workpiece. After the outer positioning is installed with the bearing, the outer positioning nut is used on the reverse side to fix the outer positioning, so that it can be reliably connected with the bearing and prevent the outer positioning from falling off. After the above components are assembled, the outer ring of the bearing is installed into the outer positioning seat, and the outer positioning seat is connected and fixed to the base plate. After the positioning shaft is processed, the bearing, the front positioning seat, the handwheel gasket, the key, the handwheel, the locking gasket are installed in sequence, and the installation screw is used to fix the locking gasket and the positioning shaft. Then the above components are fixed on the base plate, and all rotating parts should be flexible and do not move left and right. The support frame is fixed to the base, and a cylinder, a manual valve bracket, a manual valve are installed on the support frame, and the air pipe is connected, so that the cylinder can be driven to move by operating the manual valve. A blade bracket is installed on the cylinder, and a slot corresponding to the blade size is designed on the blade bracket, which is simple and reliable when replacing the blade and does not need to be adjusted many times. The blade is fixed by pressing with screws to ensure reliable connection. An adjustment positioning is installed on the outer positioning seat. To avoid dimensional changes during the use of the adjustment positioning, a step is specially designed. After installation, the step and the screw are stressed at the same time, which is more reliable. A screw is installed on the adjustment positioning so that it can adjust the movement size of the blade for use as a limit.

[0024] It can effectively reduce the processing cost, make the replacement of the blade more convenient and simple, and the stroke of the blade during operation can be simply adjusted. The adjusted blade is stable and reliable, without worrying about the risk after the blade breaks. At the same time, the noise of the working environment is reduced, achieving the purpose of simplicity and reliability.

[0025] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to this. Within the scope of knowledge possessed by those skilled in the art to which the present invention pertains, various changes can be made without departing from the gist of the present invention.

Claims

1. A positioning and cutting processing tooling for a high-frequency surgical instrument cutter tube after being coated with a heat-shrinkable tube, comprising a bottom plate (9) and a cutting mechanism, characterized in that: The cutting mechanism includes an outer positioning seat (11), a front positioning seat (14) and a support frame (18). The outer positioning seat (11), the front positioning seat (14) and the support frame (18) are all arranged on the top end face of the bottom plate (9). The surfaces of the outer positioning seat (11) and the front positioning seat (14) are both provided with a first inner hole and a second inner hole in a penetrating manner. A workpiece (8) is movably connected inside the first inner hole. An outer positioning member (7) is provided at the connection between the outer positioning seat (11) and the workpiece (8). A first bearing (10) is provided at the connection between the outer positioning member (7) and the first inner hole. An outer positioning nut (12) is provided at one end of the outer positioning member (7) on the back of the outer positioning seat (11). The other end of the front positioning seat (14) is movably connected to a handwheel (20). A positioning shaft (15) is provided between the handwheel (20) and the front positioning seat (14). A second bearing (13) is provided at the connection between the positioning shaft (15) and the second inner hole. A handwheel gasket (16) is provided at the connection between the positioning shaft (15) and the handwheel (20). One end of the positioning shaft (15) penetrates through the handwheel (20) and is located on the back of the handwheel (20), and a locking gasket (17) is provided.

2. A positioning and cutting processing tooling for a high-frequency surgical instrument knife tube after being coated with a heat-shrinkable tube, characterized in that: At the top of the support frame (18), a cylinder (2), a manual valve bracket (19) and a manual valve (1) are respectively provided. A blade bracket (3) is provided on one side of the manual valve (1). A card slot is provided on the surface of the blade bracket (3). A blade (4) is movably connected inside the card slot. An adjustment positioning member (5) is provided at the top of the outer positioning seat (11). An adjustment screw (6) is provided at the connection between the adjustment positioning member (5) and the cylinder (2).

3. A positioning and cutting processing tooling for a high-frequency surgical instrument cutter tube wrapped with a heat-shrinkable tube according to claim 2, characterized in that: The size of the blade (4) corresponds to that of the card slot. An adjustment bolt is provided at the connection between the blade (4) and the blade bracket (3).

4. A positioning and cutting processing tooling for a high-frequency surgical instrument cutter tube wrapped with a heat-shrinkable tube according to claim 1, characterized in that: The handwheel (20) is provided with a protective wheel disc and a handle. An anti-slip sleeve is sleeved outside the handle.

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