A method for preparing an electrothermal scalpel for tumor thermal therapy
By combining the metal cermet composite heating core with the knife head in an electric heating scalpel, the problem of inaccurate temperature control in the existing technology is solved, and the precise control of the knife head temperature in tumor thermal therapy is achieved, which improves the treatment effect and safety .
Patent Information
- Application Number
- CN201911123750.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-11-17
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2039-11-17
AI Technical Summary
Existing electric heaters are difficult to accurately control the temperature, resulting in the inability to effectively kill cancer cells without harming normal tissue cells in tumor thermal therapy.
The metal cermet composite heating core is used as the heating structure and is combined with the cutting head. By accurately controlling the position and temperature of the heating core in the metal tube, the controllability of the cutting head temperature is achieved.
It realizes precise control of the blade head temperature, enhances the killing effect of cancerous cells, and protects normal tissue cells, improving the accuracy and safety of treatment.
Smart Images
Figure CN111227925B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a method for preparing an electrothermal scalpel used for tumor thermal therapy. Background Art
[0002] Tumor thermal therapy is a treatment technology that uses heat energy to kill cancer cells. Modern medical research shows that normal tissue cells in the human body can still survive at 48°C, while cancer cells will die when heated to 43°C. Therefore, heating tumor tissue to above 43°C and selectively killing cancer cells is considered an effective tumor treatment method. Based on this principle, people use hot water, far infrared, microwaves, ultrasound, etc. to generate heat energy to treat tumors, but these methods either have difficulty in accurately controlling the temperature, or cannot effectively place the heat on the diseased tissue, or are inconvenient to operate, making it difficult to achieve the desired treatment effect. Therefore, people use an electric heating knife to directly contact the cancerous cells and directly kill the cancerous cells. However, the conventional electric heating knife cannot accurately control the temperature of the blade. When the temperature is not enough, the diseased cells cannot be effectively killed, and the treatment effect is poor. When the temperature is too high, it will damage normal tissue cells and increase the patient's pain. Summary of the invention
[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned traditional technology. The present invention provides an electric heating scalpel for tumor thermal therapy, which has a micro metal-ceramic composite heating core that can accurately control the temperature as a heating structure, and combines the heating core with the scalpel head to achieve controllable scalpel head temperature. It is suitable for promotion and application.
[0004] The objective of the present invention is achieved through the following technical measures: an electric heating scalpel for tumor thermal therapy, comprising a blade head, a blade body and a handle portion connected together, the blade body portion being located between the blade head and the handle portion, the blade head comprising a blade head and a connecting column, the blade head and the connecting column being integrally arranged; the blade body portion comprising a metal tube, a metal-ceramic composite heating core being installed in the metal tube, the metal-ceramic composite heating core being connected to the blade head; the handle portion comprising a metal connecting sleeve, the metal tube being installed on the metal connecting sleeve, the metal connecting sleeve being provided with a handle sleeve, a connector being installed at one end of the metal connecting sleeve away from the blade body; the connector being connected to the metal-ceramic composite heating core.
[0005] As a preferred solution, the cutter head is made of 304 stainless steel, the connecting column matches the shape of the metal tube, and the connecting column is installed in the metal tube.
[0006] As a preferred solution, the metal tube is engraved with scales.
[0007] As a preferred solution, a handle sleeve is sleeved on the metal connecting sleeve.
[0008] In the present invention, the metal-ceramic composite heating core is a structure described in the patent document with publication number CN206251353U.
[0009] A method for preparing an electrothermal scalpel for tumor thermal therapy comprises the following steps:
[0010] S1. Weld the corresponding leads to the corresponding lead connectors of the metal-ceramic composite heating core, and pass the leads through the first wire frame respectively, so that the first wire frame is close to the metal-ceramic composite heating core, and then pass the leads through the first wire frame and then through the first heat shrinkable tube, and use hot air to shrink the first heat shrinkable tube to fix the leads and the first wire frame.
[0011] S2. Place the metal tube on the jig, pass the metal-ceramic composite heating core lead and the metal-ceramic composite heating core body through the metal tube, and then use the push rod of the special jig to insert the metal-ceramic composite heating core into the metal tube, and keep it 1mm away from the tube mouth. The above jig is the jig recorded in the patent document with publication number CN201721258744.9.
[0012] S3. The lead wire passing through the other end of the metal tube passes through the second wire rack, and the wire rack is inserted into the metal tube and fixed with glue. At the same time, a second heat shrink tubing is used behind the wire rack to fix the second wire rack and the lead wire after heat shrinkage.
[0013] S4. Insert the connecting column of the cutter head into the 1mm space reserved on the metal tube after installing the heating core, then argon weld the cutter head and the metal tube, and smooth the weld.
[0014] S5. A thin tube is provided at one end of the metal connecting sleeve. The thin tube is located at one end of the metal connecting sleeve close to the metal tube. The lead wire passes through the thin tube and passes through the metal connecting sleeve. The lead wire is welded to the corresponding welding pin of the connector, and then the connector is screwed into the metal connecting sleeve.
[0015] S6. Place the metal connecting sleeve thin tube and the connecting plug at corresponding positions on the corresponding mold, and then punch to fix the metal connecting sleeve to the metal tube and the connecting plug respectively.
[0016] S7. Use a laser engraving machine to engrave scales on the metal tube.
[0017] S8, a hole is opened in the side wall of the metal connecting pipe, and glue is injected into the inner cavity of the metal connecting pipe through the hole. This step can prevent water vapor from invading the heating pipe and causing failure of the heating component, and further strengthen the connection strength between the metal connecting pipe and the metal pipe.
[0018] S9. Place the semi-finished product in a mold, and use an injection molding machine to inject a plastic handle sleeve into the metal connecting sleeve.
[0019] S10, finished products are packaged after inspection.
[0020] Due to the adoption of the above technical solution, compared with the prior art, the advantages of the present invention are:
[0021] 1. Use metal-ceramic composite heating core to achieve precise control of heating temperature.
[0022] 2. The metal-ceramic composite heating core has a small structure and can be placed inside the metal tube of the blade. By using a fixture, the heating core can be accurately controlled at a position 1mm away from the port of the metal tube, so that the metal blade head is in close contact with the metal-ceramic composite heating core, ensuring accurate control of the heating temperature at the blade head position.
[0023] 3. The blade design increases the contact area between the blade and the diseased tissue, thereby increasing the treatment effect.
[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Attached Figure 1 The present invention is a schematic diagram of the exploded structure of an electrothermal scalpel for tumor thermal therapy.
[0026] Attached Figure 2 The diagram is a side structural diagram of an electrothermal scalpel for tumor thermal therapy according to the present invention. DETAILED DESCRIPTION
[0027] Example: As attached Figure 1 to Figure 2 As shown, an electrothermal surgical knife for tumor thermal therapy comprises a knife head, a knife body and a handle part connected together, wherein the knife body part is located between the knife head and the handle part, and the knife head comprises a knife head 1 and a connecting column 13, wherein the knife head 1 and the connecting column 13 are integrally formed;
[0028] The blade body comprises a metal tube 9, a metal-ceramic composite heating core is installed in the metal tube 9, and the metal-ceramic composite heating core is electrically connected to the blade head;
[0029] The metal-ceramic composite heating core is a structure described in the patent document with publication number CN206251353U, including a heating plate 2, a copper part 3, a temperature sensor 4, a first wire rack 5, a second wire rack 13, a heat shrink sleeve 6, and enameled copper wires 7 and 8 of different colors.
[0030] The handle portion includes a metal connection sleeve 11, the metal tube 9 is mounted on the metal connection sleeve 11, and a connector 12 is mounted on one end of the metal connection sleeve away from the blade body; the connector 12 is connected to the metal-ceramic composite heating core. The metal connection sleeve 11 and the metal tube 9 are connected and fixed by welding or gluing.
[0031] The connecting column 13 matches the shape of the metal tube 9 , and the connecting column 13 is installed in the metal tube 9 .
[0032] The metal tube 9 is engraved with scales. The metal connecting sleeve 11 is sleeved with a handle 10.
[0033] The cutter head 1 is in the shape of a blade, and the angle between the two sides of the blade is 30-160 degrees. The cutter head 1 is a single-edged surface, and can also be a three-edged surface.
[0034] Specifically, the outer diameter of the metal tube 9 is 1 mm, the wall thickness of the metal tube 9 is 0.05 mm, and the length of the metal tube 9 is 90 mm.
[0035] The metal tube 9 is engraved with scales, and the distance between adjacent scale lines is 5 mm.
[0036] The length of the metal connecting sleeve 11 is 40 mm. The metal connecting sleeve 11 includes a thick tube portion and a thin tube portion. The diameter of the thick tube portion is 9 mm, and the diameter of the thin tube portion is 1.5 mm.
[0037] In this embodiment, the cutter head and the metal tube are made of uniform 304 stainless steel, the metal connecting sleeve 11 is made of aluminum alloy, stainless steel or copper alloy, and the handle 10 is made of silicone, PVC polyvinyl chloride, PEI thermoplastic polyetherimide, or PEEK polyetheretherketone.
[0038] A method for preparing an electrothermal scalpel for tumor thermal therapy comprises the following steps:
[0039] S1. Weld the corresponding leads to the corresponding lead connectors of the metal-ceramic composite heating core, and pass the leads through the first wire frame respectively, so that the first wire frame is close to the metal-ceramic composite heating core. The leads pass through the first wire frame 5 and then through the first heat shrinkable sleeve 6, and use hot air to shrink the first heat shrinkable sleeve 6 to fix the leads and the first wire frame 5.
[0040] S2. Place the metal tube on the fixture, and pass the metal-ceramic composite heating core lead and the metal-ceramic composite heating core body through the metal tube. Then use the push rod of the special fixture to insert the metal-ceramic composite heating core into the metal tube and keep it 1mm away from the tube mouth.
[0041] S3, the lead wire passing through the other end of the metal tube passes through the second wire rack 13, and the second wire rack 13 made of ceramic material is inserted into the metal tube and fixed with glue, and at the same time, a second heat shrink tube 12 is used behind the second wire rack 13 to fix the second wire rack 13 and the lead wire after heat shrinkage.
[0042] S4. Insert the connecting column of the cutter head into the 1mm space reserved on the metal tube after installing the heating core, then argon weld the cutter head and the metal tube, and smooth the weld.
[0043] S5. A thin tube is provided at one end of the metal connecting sleeve. The thin tube is located at one end of the metal connecting sleeve close to the metal tube. The lead wire passes through the thin tube and passes through the metal connecting sleeve. The lead wire is welded to the corresponding welding pin of the connector, and then the connector is screwed into the metal connecting sleeve.
[0044] S6. Place the metal connecting sleeve thin tube and the connecting plug at corresponding positions on the corresponding mold, and then punch to fix the metal connecting sleeve to the metal tube and the connecting plug respectively.
[0045] S7. Use a laser engraving machine to engrave scales on the metal tube.
[0046] S8. Drill a hole in the side wall of the metal connecting pipe and inject glue into the inner cavity of the metal connecting pipe through the hole.
[0047] S9. Place the semi-finished product in a mold, and use an injection molding machine to inject a plastic handle sleeve into the metal connecting sleeve.
[0048] S10, finished products are packaged after inspection.
[0049] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A method for preparing an electrothermal scalpel for tumor thermal therapy, wherein: The electrothermal scalpel comprises a cutter head, a blade body and a handle part connected together, the blade body part is located between the cutter head and the handle part, the cutter head comprises a cutter head and a connecting column, the cutter head and the connecting column are integrally arranged; the cutter body part comprises a metal tube, a metal ceramic composite heating core is installed in the metal tube, and the metal ceramic composite heating core is connected to the cutter head; a first wire frame and a second wire frame are installed in the metal tube, the handle part comprises a metal connecting sleeve, the metal tube is installed on the metal connecting sleeve, and a connector is installed at one end of the metal connecting sleeve away from the cutter body; the connector is connected to the metal ceramic composite heating core, and is characterized in that: the preparation method comprises the following steps: S1. Weld corresponding leads to corresponding lead connectors of the metal-ceramic composite heating core, and pass the leads through the first wire frame respectively, so that the first wire frame is close to the metal-ceramic composite heating core, and then pass the leads through the first heat shrinkable sleeve after passing through the first wire frame, shrink the first heat shrinkable sleeve with hot air, and fix the leads and the first wire frame; S2. Place the metal tube on the fixture, and pass the metal-ceramic composite heating core lead and the metal-ceramic composite heating core body through the metal tube. Then use the push rod of the special fixture to insert the metal-ceramic composite heating core into the metal tube and keep it 1mm away from the tube mouth. S3, the lead wire passing through the other end of the metal tube passes through the second wire rack, and the second wire rack is inserted into the metal tube and fixed with glue, and a second heat shrink tubing is used behind the second wire rack to fix the second wire rack and the lead wire after heat shrinking; S4. Insert the connecting column of the cutter head into the 1mm space reserved for the metal tube after installing the metal-ceramic composite heating core, then perform argon welding between the cutter head and the metal tube, and smooth the welding point; S5. A thin tube is provided at one end of the metal connection sleeve. The thin tube is located at the end of the metal connection sleeve close to the metal tube. The lead wire passes through the thin tube and passes out of the metal connection sleeve. The lead wire is welded to the corresponding welding pin of the connector, and then the connector is screwed into the metal connection sleeve. S6. Place the metal connecting sleeve thin tube and the connecting plug at corresponding positions on the corresponding mold, and then punch to fix the metal connecting sleeve to the metal tube and the connecting plug respectively.
2. The method for preparing an electrothermal scalpel for tumor thermal therapy according to claim 1, characterized in that: Use a laser engraver to engrave scale marks on the metal tube.
3. The method for preparing an electrothermal scalpel for tumor thermal therapy according to claim 2, characterized in that: A hole is opened in the side wall of the metal tube, and glue is injected into the inner cavity of the metal tube through the hole.
4. The method for preparing an electrothermal scalpel for tumor thermal therapy according to claim 3, characterized in that: The installed metal connecting sleeve is placed in a mold, and a plastic handle sleeve is injection-molded on the metal connecting sleeve by an injection molding machine.
5. The method for preparing an electrothermal scalpel for tumor thermal therapy according to claim 4, characterized in that: Finished products are packaged after testing.