CN102138825A - Water injected microwave antenna - Google Patents

Abstract

The invention relates to a water injected microwave antenna. An outer pipe assembly is communicated with an inner pipe assembly; the antenna penetrates through the inner parts of the inner pipe assembly and the outer pipe assembly; the tail end of the antenna is fixed at the inner part of a socket; an inner core of the antenna is also arranged at the front end of the antenna; the outer pipe assembly comprises an outer pipe frame, an outer pipe and a water injection hole; a sliding groove, a movable passageway of the outer pipe frame, and an antenna passageway are arranged on the inner pipe frame in the inner pipe assembly; the sliding groove is arranged on the outer wall of an inner pipe frame; the movable passageway of the outer pipe frame is arranged at the inner part of the inner pipe frame; the outer pipe frame is arranged in the movable passageway of the outer pipe frame; a front plug is installed at the front end of the inner pipe frame; a linking component is arranged in the front plug; and the outer pipe assembly displaces at the outer side of the antenna through the linking component and the inner pipe assembly so as to control the inner core of the antenna to stretch out of the outer pipe or hide at the inner part of the outer pipe. In the invention, the inner core of the antenna can be prevented from falling due to the adhesion between the inner core and skin or tissue after the inner core is heated, and the wall of the outer pipe can also be prevented from scalding the skin of a patient when the microwave antenna is in operation.

Description

The water filling microwave antenna

Technical field

The present invention relates to field of medical appliances, particularly a kind of microwave operation apparatus, especially a kind of water filling microwave antenna.

Background technology

Malignant tumor is the one of the main reasons that threatens human health and life, and the medicine of the malignant tumor of Shang Wuke radical cure at present.In recent years, the technology of minimally-invasive treatment tumor has obtained very great development, and because it has characteristics such as the patient suffering that wound is little, complication is low, receive treatment is few, original position inactivation ratio height, and be subjected to extensive concern.The tumor micro-wound therapeutic equipment mainly contains main flow equipment such as radio frequency, microwave, argon helium knife, focus ultrasonic knife, and its treatment mechanism all is under the guiding of B ultrasonic, CT or MRI, and energy accumulating at lesions position, is made tumor tissue necrosis.Wherein, microwave equipment has than other several equipment that puncture is convenient, wound is little, be not subjected to skeleton to influence, melt advantages such as dimensionally stable.

Yet, in the process of microwave ablation treatment tumor, because microwave coagulation treatment tool temperature too high (above 100 ℃), therefore, tissue around the easily surperficial and cutter head of cutter head sticks together, and makes it can't carry out remaining operation again, and cutter head also can be by coming off on the microwave coagulation treatment when serious, thereby stay in patient's the body, cause the secondary injury to the patient.

Summary of the invention

At the weak point that exists in the problems referred to above, the invention provides a kind of antenna inner core that can prevent and after heating, cause it to come off, the water filling microwave antenna that when microwave antenna is worked, can also avoid outer tube wall that patient skin is scalded because of sticking together with skin or tissue.

For achieving the above object, the invention provides a kind of water filling microwave antenna, by the outer tube assembly, interior pipe assembly, preceding plug, socket and antenna constitute, described outer tube assembly is connected with described interior pipe assembly, described antenna is through the inside of described interior pipe assembly and described outer tube assembly, its end is fixed on the inside of described socket, the front end of described antenna also is provided with the antenna inner core, described outer tube assembly is by outer pipe support, outer tube and water injection hole constitute, the pipe assembly comprises interior pipe support in described, plug is installed in the front end of described interior pipe support before described, before described, be provided with linkage part in the plug, described outer tube assembly carries out displacement by described linkage part and described interior pipe assembly in the outside of described antenna, to control described antenna inner core by stretching out in the described outer tube or hiding to described outer tube inside.

Pipe support is provided with sliding tray, outer pipe support active tunnel and antenna channels in described, described sliding tray is arranged on the outer wall of described interior pipe support, described outer pipe support active tunnel and described antenna channels all are arranged on the inside of described interior pipe support, described antenna channels is arranged on the terminal and coupled logical of described outer pipe support active tunnel, and described outer tube frame is arranged in the described outer pipe support active tunnel.

On the sidewall of described sliding tray, also be provided with at least one screens, the spacing of described head end screens between the described sliding tray head end more than or equal to described antenna inner core front end to the spacing between the described antenna inner core end.

The quantity of described screens is two, the spacing of described first screens between described second screens more than or equal to described antenna inner core front end to the spacing between the described antenna inner core end.

Described water injection hole is the pillar construction of outer gibbosity, and described water injection hole is fastened in the described screens, and described water injection hole is identical with the shape of described screens.

Described linkage part is a spring, the front end of described spring is arranged in first chamber of described preceding plug inside, the end of described spring is arranged in the spring card slot of described outer pipe support front end face, described outer tube is through the inside of described spring, and the inwall of second chamber is connected with the outer wall of described interior pipe support front end in the described preceding plug.

In described, also comprise apopore and interior pipe in the pipe assembly, pipe is through the inside of described interior pipe support and described outer tube in described, the end of described apopore with described in pipe and described in the inlet opening formation water stream channel that is connected of pipe front end face, described apopore is arranged on the rear side of described water injection hole.

Front end at described antenna also is equipped with the antenna plug, and described antenna is through the inside of described antenna plug, and the inwall of described antenna plug is connected with the outer wall of described antenna.

Also be distributed with apopore on the outer tube wall of described outer tube.

Described outer tube assembly can also and adopt manual push-and-pull or the screw thread rotation mode is carried out displacement in the outside of described antenna by pipe assembly in described, to control described antenna inner core by stretching out in the described outer tube or hiding to described outer tube inside.

Compared with prior art, the present invention has the following advantages:

Water filling microwave antenna provided by the invention, can the control antenna inner core by stretching out in the outer tube or hiding to outer tube inside, after heating, cause it to come off to prevent the antenna inner core because of sticking together with skin or tissue; In addition, when the outer tube assembly carries out displacement in the outside of antenna, the part normal saline can also be injected tissue, can make tissue produce moistening, infiltration and heat conducting effect because in microwave work, inject normal saline, prevent carbonization, stop the tissue adhesion, enlarge ablated volume, can treat in conjunction with chemotherapeutic simultaneously.In addition, owing to form torus between the inner and outer pipe, therefore, water can flow in torus freely in water filling, with the temperature of control tube wall, thereby stop tube wall the situation that tissue is scalded takes place.In addition, owing on the outer tube wall of outer tube, also be provided with a plurality of apopores, therefore when taking place to stop up, the apopore of outer tube front end face still can continue water outlet by a plurality of apopores.

Description of drawings

Fig. 1 is the cutaway view of first embodiment of the invention;

Fig. 2 is the cutaway view of Fig. 1 middle external tube assembly;

Fig. 3 is the cutaway view of interior pipe assembly among Fig. 1;

Fig. 4 is the connection layout of antenna and socket among Fig. 1;

Fig. 5 is the cutaway view of preceding plug among Fig. 1;

Fig. 6 is another example structure figure of Fig. 1 middle external tube;

Fig. 7 is the cutaway view of second embodiment of the invention;

Fig. 8 is the cutaway view of interior pipe assembly among Fig. 7;

Fig. 9 is the connection layout of antenna and socket among Fig. 7.

The main element symbol description is as follows:

Pipe assembly 3 sockets in the 1outer tube assembly 2

Plug 6 springs before 4antennas 5

7 antenna inner cores, 8 antenna end sockets, 110 outer pipe supports

111 outer tubes, 112 water injection holes, 113 spring card slots

Pipe in the pipe support 211 in 114apopores 210

212 sliding trays, 213 outer tube active tunnels, 214 apopores

215 antenna channels, 216 first screens, 217 second screens

310 first chambers, 311 second chambers

The specific embodiment

Extremely shown in Figure 6 as Fig. 1, the invention provides a kind of water filling microwave antenna, constitute with precedingplug 5 by outer tube assembly 1,interior pipe assembly 2,socket 3, antenna 4, the outer tube assembly is connected with interior pipe assembly, antenna is through the inside of interior pipe assembly and outer tube assembly, and the mode of its terminal employing welding is fixed on inside of socket 3.At the front end of antenna 4inner core 7 that also fixes up an aerial wire, also be coated with coating at the outer surface of antenna inner core 7.Wherein, outer tube assembly 1 is made ofouter pipe support 110,outer tube 111 andwater injection hole 112, and the end ofouter tube 111 is through the inside ofouter pipe support 110, and the front end face ofouter tube 111 forms the water hole.On the outer wall that is arranged onouter pipe support 110 ofwater injection hole 112, its end is connected withouter tube 111, forms water stream channel between the apopore of water injection hole and outer tube and outer tube front end face.The front end face ofouter tube 111 carries out shape wedge angle at 45 behind the skiving by instrument, by this wedge angle outer tube is thrust in skin or the tissue easily.The front end face ofpipe support 110 also is provided with spring card slot 113 outside, and the outer wall ofouter tube 111 is also through the inside of spring card slot 113.Thiswater injection hole 112 is the column of evagination, and that the shape of this column can adopt is cylindrical, rectangle or square.Interior pipe assembly 2 is made ofinterior pipe support 210, on the outer wall ofinterior pipe support 210, also be provided with slidingtray 212, on slidingtray 212, be provided with at least one screens, the inner wall shape of this screens is identical with the outer wall shape of water injection hole, the head end screens to the spacing between the sliding tray head end more than or equal to the front end of antenna inner core to the spacing between the end of antenna inner core.In the present embodiment, it is provided with two screens on slidingtray 212, two screens be respectively spacing betweenfirst screens 216 and second screens, 217, the first screens, 216 tosecond screens 217 more than or equal to antennainner core 7 front ends to the spacing between the end of antenna inner core 7.Also be provided with the outer pipe supportactive tunnel 213 andantenna channels 215 that is connected in the inside ofinterior pipe support 210,antenna channels 215 is arranged on the end of outer tube active tunnel 213.The front end of thisantenna channels 215 is connected with the end ofouter tube 111, andouter pipe support 110 is arranged in the outer pipe supportactive tunnel 213, makes the gap betweenouter tube 111 and the antenna 4 form water cavity.The front end ofpipe support 210 in precedingplug 5 is installed in, the inside ofpro-plug 5 is provided withfirst chamber 310 andsecond chamber 311, the end offirst chamber 310 is connected with the front end ofsecond chamber 311, and the surface area of the front end end face ofsecond chamber 311 is more than or equal to the surface area of the distal end faces of first chamber 310.In addition, also be provided with a throughhole 312 on the outer wall of first chamber, 310 front end end faces, outer tube and antenna are all through the inside of this through hole 312.Be provided with linkage part in thepro-plug 5, the outer tube assembly carries out displacement by linkage part and interior pipe assembly in the outside of antenna, with the control antenna inner core by stretching out in the outer tube or hide to outer tube inside.

In the present embodiment, this linkage part is aspring 6, and the front end of thisspring 6 is arranged infirst chamber 310, and the end ofspring 6 is arranged in the spring card slot 113 of outer pipe support front end face, andouter tube 111 is through the inside of spring 6.The present invention in use, if sticking together, antenna inner core and skin or tissue connect, can be by regulating the position of water injection hole in first screens or second screens, make the outer tube assembly carry out displacement in the outside of antenna, thereby the control antenna inner core is by stretching out in the outer tube or hiding to outer tube inside, and the skin of antenna inner core and adhesion or tissue are broken away from.Adopt spring can make the transmission of water injection hole more stable, and be more convenient for using as linkage part.Can adopt buckle mode, engage thread, inserting mode between the outer wall of the inwall ofsecond chamber 311 andinterior pipe support 210 front ends or be connected by modes such as external fastenings.

When the outer tube assembly carries out displacement in the outside of antenna, can prevent that not only the antenna inner core from causing it to come off because of sticking together with skin or tissue after heating, the part normal saline can also be injected tissue, can make tissue produce moistening, infiltration and heat conducting effect because in microwave work, inject normal saline, prevent carbonization, stop the tissue adhesion, enlarge ablated volume, can treat in conjunction with chemotherapeutic simultaneously.

As shown in Figure 6, on the outer tube wall ofouter tube 111, be distributed with a plurality ofapopores 114, the a plurality of apopores that all distribute on the apopore of water injection hole and outer tube and outer tube front end face and the outer tube wall form water stream channel, therefore take place to stop up can't water outlet the time when the apopore ofouter tube 111 front end faces, still can be by a plurality of apopores continuation water outlets on the outer tube wall.

Water filling microwave antenna described in Fig. 1 to Fig. 6 is used in the routine operation and uses.

Extremely shown in Figure 9 as Fig. 7, the invention provides a kind of water filling microwave antenna, constitute with precedingplug 5 by outer tube assembly 1,interior pipe assembly 2,socket 3, antenna 4, the outer tube assembly is connected with interior pipe assembly, antenna is through the inside of interior pipe assembly and outer tube assembly, and the mode of its terminal employing welding is fixed on inside of socket 3.At the front end of antenna 4inner core 7 that also fixes up an aerial wire, also be coated with coating at the outer surface of antenna inner core 7.Wherein, outer tube assembly 1 is made ofouter pipe support 110,outer tube 111 andwater injection hole 112, and the end ofouter tube 111 is through the inside ofouter pipe support 110, and the front end face ofouter tube 111 forms the water hole.On the outer wall that is arranged onouter pipe support 110 ofwater injection hole 112, its end is connected withouter tube 111, and the apopore of water injection hole and outer tube and outer tube front end face forms water stream channel.The front end face ofouter tube 111 carries out shape wedge angle at 45 behind the skiving by instrument, by this wedge angle outer tube is thrust in skin or the tissue easily.The front end face ofpipe support 110 also is provided with spring card slot outside, and the outer wall ofouter tube 111 is also through the inside of spring card slot.Thiswater injection hole 112 is the column of evagination, and that the shape of this column can adopt is cylindrical, rectangle or square.Interior pipe assembly 2 is made of withapopore 214interior pipe support 210,interior pipe 211, and the end ofinterior pipe 211 is through the inside ofinterior pipe support 210, and the front end face ofinterior pipe 211 also forms the inlet opening.On the outer wall ofpipe support 210, its end was connected with interior pipe, forms water stream channel between the inlet opening ofapopore 214 and interior pipe and interior pipe front end face inapopore 214 was arranged on.Apopore 214 is arranged on the rear side of water injection hole 112.Oninterior pipe support 210, be provided with slidingtray 212, in the present embodiment, on slidingtray 212, be provided with two screens, two screens be respectively spacing betweenfirst screens 216 and second screens, 217, thefirst screens 216 andsecond screens 217 more than or equal to the front end of antennainner core 7 to the spacing between the end of antenna inner core 7.Pipe supportactive tunnel 213 andantenna channels 215 outside ininterior pipe support 210, also being provided with, the front end of thisantenna channels 215 is connected with the end of outer pipe supportactive tunnel 213,outer pipe support 110 is arranged in the outer pipe supportactive tunnel 213, andinterior pipe 211 is connected in outer pipe supportactive tunnel 213 and with antenna channels 215.In addition becauseinterior pipe 211 is also inouter tube 111, andouter pipe support 110 also be arranged in thepipe support 210, the therefore formation of the gap betweeninterior pipe 211 andouter tube 111 intake antrum, the gap betweeninterior pipe 211 and antenna 4 forms water cavity.The front end ofpipe support 210 in precedingplug 5 is installed in, the inside ofpro-plug 5 is provided with first chamber and second chamber, the end of first chamber is connected with the front end of second chamber, and the surface area of the front end end face of second chamber is more than or equal to the long-pending face of the table of the distal end faces of first chamber.In addition, also be provided with a through hole on the outer wall of the first chamber front end end face, outer tube, interior pipe and antenna are all through the inside of this through hole.Be provided with linkage part in thepro-plug 5, the outer tube assembly carries out displacement by linkage part and interior pipe assembly in the outside of antenna, by stretching out in the outer tube or hiding to outer tube inside, the skin of antenna inner core and adhesion or tissue is broken away from the control antenna inner core.

Front end at antenna 4 also is equipped with antenna plug 8, and this antenna plug 8 is made for elastomeric material, is preferred material with silica gel.Antenna 4 is through the inside of antenna plug 8, and the inwall of antenna plug 8 is connected with the outer wall of antenna 4.Can prevent to flow out in the apopore of water in the outer tube by this antenna plug 8, water can only be formed in the torus between inner and outer pipe flow by its front end face.Owing to form torus between the inner and outer pipe, therefore, water can flow in torus freely in water filling, with the temperature of control tube wall, thereby stop tube wall the situation that tissue is scalded takes place.

Water filling microwave antenna described in Fig. 7 to Fig. 9 can be used for carrying out pulmonary surgery.

In addition, the outer tube assembly can also and adopt manual push-pull fashion, screw thread rotation mode or other mechanical drive modes to carry out displacement in the outside of antenna by interior pipe assembly, thereby the control antenna inner core is by stretching out in the outer tube or hiding to outer tube inside, and the skin of antenna inner core and adhesion or tissue are broken away from.When adopting manual push-pull fashion, only need cancellation spring or other linkage parts and can, by the interior pipe assembly and the fixed position of water injection hole in sliding tray of adopting manual push-and-pull, adjusting, change column, make the outer tube assembly carry out displacement, thereby the control antenna inner core stretch out or hide to outer tube inside in the outside of antenna.When adopting the screw thread rotation mode, then need outside the outer wall of pipe support and the inner wall surface of interior pipe support that multiple whorl is set, in interior pipe support, carry out screw thread rotation by regulating the outer pipe support of component controls then, make the outer tube assembly carry out displacement, thereby the control antenna inner core is by stretching out in the outer tube or hiding to outer tube inside in the outside of antenna.

Only the above person only is preferred embodiment of the present invention, is familiar with the professional person of this skill such as. after understanding technological means of the present invention, natural energy is changed under instruction of the present invention according to the needs of reality.Therefore all equal variation and modifications of being done according to the present patent application claim once should still belong in the scope that patent of the present invention contains.

Claims (10)

1. water filling microwave antenna, by the outer tube assembly, interior pipe assembly, preceding plug, socket and antenna constitute, described outer tube assembly is connected with described interior pipe assembly, described antenna is through the inside of described interior pipe assembly and described outer tube assembly, its end is fixed on the inside of described socket, the front end of described antenna also is provided with the antenna inner core, described outer tube assembly is by outer pipe support, outer tube and water injection hole constitute, the pipe assembly comprises interior pipe support in described, it is characterized in that, plug is installed in the front end of described interior pipe support before described, before described, be provided with linkage part in the plug, described outer tube assembly carries out displacement by described linkage part and described interior pipe assembly in the outside of described antenna, to control described antenna inner core by stretching out in the described outer tube or hiding to described outer tube inside.

2. a kind of water filling microwave antenna as claimed in claim 1, it is characterized in that, pipe support is provided with sliding tray, outer pipe support active tunnel and antenna channels in described, described sliding tray is arranged on the outer wall of described interior pipe support, described outer pipe support active tunnel and described antenna channels all are arranged on the inside of described interior pipe support, described antenna channels is arranged on the terminal and coupled logical of described outer pipe support active tunnel, and described outer tube frame is arranged in the described outer pipe support active tunnel.

3. a kind of water filling microwave antenna as claimed in claim 2, it is characterized in that, on the sidewall of described sliding tray, also be provided with at least one screens, the spacing of described head end screens between the described sliding tray head end more than or equal to described antenna inner core front end to the spacing between the described antenna inner core end.

4. a kind of water filling microwave antenna as claimed in claim 3, it is characterized in that, the quantity of described screens is two, the spacing of described first screens between described second screens more than or equal to described antenna inner core front end to the spacing between the described antenna inner core end.

5. a kind of water filling microwave antenna as claimed in claim 1 is characterized in that described water injection hole is the pillar construction of outer gibbosity, and described water injection hole is fastened in the described screens, and described water injection hole is identical with the shape of described screens.

6. a kind of water filling microwave antenna as claimed in claim 1, it is characterized in that, described linkage part is a spring, the front end of described spring is arranged in first chamber of described preceding plug inside, the end of described spring is arranged in the spring card slot of described outer pipe support front end face, described outer tube is through the inside of described spring, and the inwall of second chamber is connected with the outer wall of described interior pipe support front end in the described preceding plug.

7. a kind of water filling microwave antenna as claimed in claim 2, it is characterized in that, in described, also comprise apopore and interior pipe in the pipe assembly, pipe is through the inside of described interior pipe support and described outer tube in described, the end of described apopore with described in pipe and described in the inlet opening formation water stream channel that is connected of pipe front end face, described apopore is arranged on the rear side of described water injection hole.

8. a kind of water filling microwave antenna as claimed in claim 1 is characterized in that, at the front end of described antenna the antenna plug is installed also, and described antenna is through the inside of described antenna plug, and the inwall of described antenna plug is connected with the outer wall of described antenna.

9. a kind of water filling microwave antenna as claimed in claim 1 is characterized in that, also is distributed with apopore on the outer tube wall of described outer tube.

10. a kind of water filling microwave antenna as claimed in claim 1, it is characterized in that, described outer tube assembly can also and adopt manual push-and-pull or the screw thread rotation mode is carried out displacement in the outside of described antenna by pipe assembly in described, to control described antenna inner core by stretching out in the described outer tube or hiding to described outer tube inside.

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