CN210541810U - Microwave ablation device for protecting peritumoral tissue - Google Patents
Microwave ablation device for protecting peritumoral tissue Download PDFInfo
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- CN210541810U CN210541810U CN201920770157.0U CN201920770157U CN210541810U CN 210541810 U CN210541810 U CN 210541810U CN 201920770157 U CN201920770157 U CN 201920770157U CN 210541810 U CN210541810 U CN 210541810U
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Abstract
The utility model discloses a microwave ablation device of tissue around protection tumour, including the sleeve pipe, melt needle, cooling needle and handle, melt the needle and fix on the handle, the sleeve pipe with the connection can be dismantled to the handle, the equipartition is equipped with a plurality ofly all around the sleeve pipe the cooling needle, the cooling needle with melt and leave the distance between the needle, it is a plurality of the cooling needle is used for surrounding the tumour, it is located a plurality of to melt the needle surround the regional centre of encirclement of cooling needle, be equipped with inlet tube and outlet pipe in the cooling needle, the inlet tube with the outlet pipe is at the end position intercommunication of cooling needle, inlet tube and external coolant liquid feeding mechanism connect, the outlet pipe is connected with external water tank. The utility model provides a microwave ablation device for protecting the tissues around the tumor, which can protect the tissues around the tumor.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to microwave ablation device for protecting tissues around tumor.
Background
The microwave ablation needle is not a needle, but is a very thin radiating antenna. The specific method comprises the following steps: under the guidance of B-ultrasonic or CT, the microwave needle is directly punctured to the tumor part, the polar molecules in the tissue move at high speed under the action of microwave field, and rub against each other to generate heat, which is heated rapidly in the tumor, and when the temperature is raised to about 60 ℃, the protein of cancer cells is denatured and solidified, resulting in irreversible necrosis. Due to the characteristics of rapid temperature rise and difficulty in control in microwave ablation, the action range of the ablation needle needs to be ensured to completely wrap the tumor part in the ablation process, and a safety edge with a certain distance needs to be reserved. Therefore, the ablation needle kills tumor tissues in the ablation process, and can also damage surrounding tissues and organs, and the reactions include burning pain in the operation, low heat after the operation and the like. The existing ablation needle only cools the tumor part and does not protect normal tissues around the tumor.
Disclosure of Invention
To the above prior art, the utility model provides a microwave ablation device of protection tumour surrounding tissue can protect normal tissue on every side through cooling down around the tumour.
The technical scheme of the utility model is realized like this:
the utility model provides a microwave ablation device of protection tumour surrounding tissue, includes the sleeve pipe, melts needle, cooling needle and handle, it fixes on the handle to melt the needle, the sleeve pipe with the connection can be dismantled to the handle, the equipartition is equipped with a plurality ofly all around the sleeve pipe the cooling needle, the cooling needle with melt and leave the distance between the needle, it is a plurality of the cooling needle is used for surrounding the tumour, it is located a plurality of to melt the needle the centre of the surrounding area that the cooling needle encloses, be equipped with inlet tube and outlet pipe in the cooling needle, the inlet tube with the outlet pipe communicates at the terminal position of cooling needle, the inlet tube is connected with external coolant liquid feeding mechanism, the outlet pipe is connected with external water tank.
Furthermore, the sleeve is provided with a plurality of holders, and the cooling needle is clamped on the holders.
Further, the holder comprises a holding pipe, a clamping nozzle, a spring and a groove formed in the sleeve, the holding pipe is arranged in the groove, the spring pulls the holding pipe into the groove, the clamping nozzle is arranged at the bottom of the holding pipe and is a hollow frustum-shaped structure formed by splicing at least two holding blocks, and the diameter of the lower bottom surface of the clamping nozzle is larger than that of the groove.
Furthermore, the upper surface of the sleeve is provided with a plug-in unit, the lower surface of the handle is provided with a slot, and the plug-in unit is inserted into the slot.
Further, the upper surface of cooling needle is equipped with first contact pin and second contact pin, first contact pin and inlet tube intercommunication, second contact pin and outlet pipe intercommunication, the intraductal first cavity and the second cavity that is equipped with of cover, first cavity, second cavity respectively through the rubber buffer with the recess is separated, first contact pin passes the rubber buffer inserts in the first cavity, the second contact pin passes the rubber buffer inserts in the second cavity, second contact pin and external coolant liquid feeding mechanism connect, second contact pin and external water tank are connected.
Further, the cooling liquid supply device is a water pump, the water pump is arranged in the water tank, a water outlet of the water pump is communicated with the first cavity, and the second cavity is communicated with the water tank.
Furthermore, the infusion device also comprises a plurality of injection needles which are uniformly distributed around the sleeve, the injection needles are communicated with the infusion tube, and the infusion tube is communicated with the injector.
Furthermore, the cooling needle is an elastic cooling needle with a bent tail end in a natural state, a first straight cylinder is sleeved outside the cooling needle, and the length of the first straight cylinder is smaller than that of the cooling needle.
Furthermore, the injection needle is an elastic injection needle with a bent end in a natural state, a second straight cylinder is sleeved outside the injection needle, and the length of the second straight cylinder is smaller than that of the injection needle.
The beneficial effects of the utility model reside in that: the tissue around the tumor is cooled through the cooling pipe, and the surrounding normal tissue is protected. After the tissues around the tumor are protected, a high-power ablation needle can be adopted, so that the ablation speed is increased, the temperature of the tumor tissues is higher, and the tumor is killed more thoroughly. Reducing the risk of tumor recurrence and metastasis.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.
Fig. 1 is a three-dimensional structure view of a microwave ablation device for protecting tissues around tumor according to the present invention;
FIG. 2 is a sectional view of the handle of the present invention;
FIG. 3 is a three-dimensional structure diagram of the sleeve of the present invention;
FIG. 4 is a three-dimensional structure diagram of the sleeve of the present invention;
FIG. 5 is a three-dimensional structure diagram of the clamp tube, the clamp nozzle and the spring in the clamp holder of the present invention;
FIG. 6 is a sectional view of the sleeve according to the present invention;
FIG. 7 is a three-dimensional structure diagram of the sleeve of the present invention;
fig. 8 is a schematic view of the spatial structure of the first cavity and the second cavity of the present invention;
FIG. 9 is a sectional view of the cooling pin according to the present invention;
FIG. 10 is a perspective view of the injection needle, infusion tube and syringe of the present invention;
FIG. 11 is a perspective view of the cooling pin and the second straight tube of the present invention;
in the figure, 1 sleeve, 2 ablation needle, 3 cooling needle, 4 handle, 5 water inlet pipe, 6 water outlet pipe, 7 cooling liquid supply device, 8 water tank, 9 clamper, 10 clamping pipe, 11 clamping mouth, 12 spring, 13 groove, 14 clamping block, 15 plug-in unit, 16 slot, 17 first plug-in needle, 18 second plug-in needle, 19 first cavity, 20 second cavity, 21 rubber plug, 22 syringe needle, 23 transfusion tube, 24 syringe, 25 first straight tube, 26 second straight tube.
Detailed Description
In order to better understand the technical content of the present invention, the following embodiments are provided, and the present invention is further described with reference to the accompanying drawings.
Example 1
Referring to fig. 1 to 9, a microwave ablation device for protecting peritumoral tissues comprises a sleeve 1, an ablation needle 2, a cooling needle 3 and a handle 4, wherein the ablation needle 2 is fixed on the handle 4, the sleeve 1 is detachably connected with the handle 4, a plurality of cooling needles 3 are uniformly distributed around the sleeve 1, a distance is reserved between the cooling needles 3 and the ablation needle 2, the cooling needles 3 are used for surrounding tumors, the ablation needle 2 is positioned in the middle of a surrounding area surrounded by the cooling needles 3, a water inlet pipe 5 and a water outlet pipe 6 are arranged in the cooling needle 3, the water inlet pipe 5 is communicated with the water outlet pipe 6 at the tail end of the cooling needle 3, the water inlet pipe 5 is connected with an external cooling liquid supply device 7, and the water outlet pipe 6 is connected with an external water tank 8.
The sleeve 1 is detachably connected with the handle 4, and the sleeve 1 is fixed on the handle 4 when in use. The ablation needle 2 is fixed on the handle 4, and the sleeve 1 is sleeved on the upper part of the ablation needle 2 after the sleeve 1 is fixed. The periphery of the sleeve 1 is provided with a plurality of cooling needles 3, the cooling needles 3 are fixed on the sleeve 1 in a fixed connection or detachable connection mode and are uniformly distributed along the periphery of the sleeve 1, and the cooling needles 3 are distributed at equal intervals and surround the ablation needle 2. The cooling needle 3 and the ablation needle 2 are spaced apart from each other, the ablation needle 2 is located in the middle of an enclosed area defined by the cooling needles 3, when the ablation needle 2 and the cooling needle 3 are inserted into human tissues together for ablation, the ablation needle 2 is inserted into tumor tissues, the cooling needle 3 is inserted into surrounding tissues of the tumor tissues, the cooling needle 3 surrounds the tumor tissues, and the tissues around the tumor are cooled in the ablation process to protect the tissues around the tumor. The cooling needle 3 adopts cold water circulation cooling, is equipped with inlet tube 5 and outlet pipe 6 in the cooling needle 3, and cold water gets into from inlet tube 5, because inlet tube 5 and outlet pipe 6 communicate at the terminal position of cooling needle 3, the terminal one end that is had the point end of cooling needle 3, and cold water flows to outlet pipe 6 at the cooling needle 3 terminal after 5 entering from the inlet tube, flows back to in the cooling cycle device from outlet pipe 6 at last. Optionally, the cooling liquid supply device 7 is a tap water pipe, and cold water is supplied to the water inlet pipe 5 from the tap water pipe, so as to achieve the purpose of cooling.
Preferably, the cooling needle 3 is fixed on the sleeve 1 in a detachable connection mode, the sleeve 1 is provided with a plurality of clamping devices 9, and the cooling needle 3 is clamped on the clamping devices 9. The cooling needle 3 is clamped to the sleeve 1. Specifically, the holder 9 includes a holding tube 10, a clamping nozzle 11, a spring 12 and locates the recess 13 on the sleeve 1, the holding tube 10 is located in the recess 13, the spring 12 will the holding tube 10 to pulling in the recess 13, the holding tube 10 bottom is equipped with the clamping nozzle 11, the clamping nozzle 11 is the hollow frustum-shaped structure that constitutes by two grip blocks 14 concatenation at least, the lower bottom surface diameter of clamping nozzle 11 is greater than the diameter of recess 13. The upper end of the cooling needle 3 is inserted into the clamping pipe 10, the clamping nozzle 11 is arranged at the bottom of the clamping pipe 10, the clamping nozzle 11 is of a hollow frustum structure formed by splicing at least two clamping blocks 14, the clamping blocks 14 of the clamping nozzle 11 can be drawn close to each other, and the clamping block 14 clamps the cooling needle 3 after being drawn in. Under the action of the spring 12, the clamping tube 10 moves upwards, the clamping nozzle 11 is fixed at the bottom of the clamping tube 10, the upper ground of the clamping nozzle 11 is the same as the diameter of the clamping tube 10, and when the clamping nozzle 11 moves upwards, as the diameter of the lower ground of the clamping nozzle 11 is larger than the diameter of the groove 13, the clamping nozzle 11 is extruded by the inner wall of the groove 13, a clamping block 14 forming the clamping nozzle 11 is folded towards the middle, and the cooling needle 3 is clamped. One end of the spring 12 is connected with the clamping tube 10, the other end of the spring 12 is connected with the top of the groove 13, the spring 12 is in a stretched state, and when the spring 12 is recovered, the clamping tube 10 is pulled upwards to drive the clamping nozzle 11 to clamp the cooling needle 3. The clamping nozzle 11 and the cooling needle 3 have friction force, when the cooling needle 3 is inserted into a human body, the cooling needle 3 can push the clamping nozzle 11 to move upwards, so that the clamping nozzle 11 can clamp more tightly, and the self-locking effect is achieved.
Specifically, the upper surface of the sleeve 1 is provided with an insert 15, the lower surface of the handle 4 is provided with a slot 16, and the insert 15 is inserted into the slot 16. The insert 15 is inserted into the slot 16 and clamped, and the sleeve 1 is fixed on the handle 4. The insert 15 is pulled out of the socket 16 and the cannula 1 is removed from the handle 4.
Specifically, the upper surface of cooling pin 3 is equipped with first contact pin 17 and second contact pin 18, first contact pin 17 and inlet tube 5 intercommunication, second contact pin 18 and outlet pipe 6 intercommunication, be equipped with first cavity 19 and second cavity 20 in the sleeve pipe 1, first cavity 19, second cavity 20 respectively through rubber buffer 21 with recess 13 separates, first contact pin 17 passes rubber buffer 21 inserts in the first cavity 19, second contact pin 18 passes rubber buffer 21 inserts in the second cavity 20, second contact pin 18 and external coolant liquid supply device 7 are connected, second contact pin 18 and external water tank 8 are connected. First contact pin 17 and second are inserted and are surpassed the upper surface of cooling needle 3, first cavity 19, second cavity 20 respectively through rubber buffer 21 with recess 13 separates, and cooling needle 3 inserts in recess 13 to insert first contact pin 17 and second contact pin 18 through rubber buffer 21, first contact pin 17 gets into first cavity 19, and second contact pin 18 gets into second cavity 20. So that the second contact pin 18 is connected with the external cooling liquid supply device 7, the cooling liquid sequentially enters the water inlet pipe 5 from the cooling liquid supply device 7, the first cavity 19 and the first contact pin 17, and the cooling liquid entering the water inlet pipe 5 is sequentially discharged into the water tank 8 from the water outlet pipe 6, the second contact pin 18 and the second cavity 20.
The cooling liquid supply device 7 is a water pump, the water pump is arranged in the water tank 8, a water outlet of the water pump is communicated with the first cavity 19, and the second cavity 20 is communicated with the water tank 8. The water pump is with the cold water pump in the water tank 8 to first cavity 19 in, specifically, the water pump leads to pipe and first cavity 19 intercommunication. Water in the second cavity 20 passes through the pipeline and arranges in the water tank 8, realizes hydrologic cycle, need not arrange the pipeline in the place that uses, improves the scope of using, and hydrologic cycle can also the water economy resource simultaneously.
Example 2
Referring to fig. 1 to 11, the present embodiment is different from embodiment 1 in that a plurality of injection needles 22 are further included, the injection needles 22 are uniformly distributed around the cannula 1, the injection needles 22 are communicated with a perfusion tube 23, and the perfusion tube 23 is communicated with a syringe 24. The injection needle 22 may or may not be fixed to the cannula 1. The injection needles 22 are inserted into the human tissue one by one in use without being fixed to the cannula 1. The injection needle 22 is inserted to surround the tumor tissue, and the syringes 24 are communicated with the injection needle 22 through the infusion tube 23. specifically, the injection needles 22 may be communicated with the syringes 24 one by one through the injection tubes 23, respectively, or the injection tubes 23 may include a manifold to which branch tubes are connected and which is communicated with the syringes 24, and branch tubes which are communicated with the injection needles 22, respectively. The protective drug is injected into the tissue surrounding the tumor through the injection needle 22, surrounding the normal tissue surrounding the tumor.
Specifically, the cooling needle 3 is an elastic cooling needle 3 with a bent end in a natural state, a first straight cylinder 25 is sleeved outside the cooling needle 3, and the length of the first straight cylinder 25 is smaller than that of the cooling needle 3. The first straight tube 25 is fitted around the cooling pin 3. The first straight tube 25 is a rigid structure and cannot be bent. The inner wall of first straight section of thick bamboo 25 and the outer wall laminating of cooling needle 3, perhaps the syringe needle department diameter of cooling needle 3 is greater than needle tubing department diameter, and when first straight section of thick bamboo 25 overlaps on cooling needle 3, the external diameter laminating of the lower terminal surface of first straight section of thick bamboo 25 and the 3 syringe needles department of cooling needle avoids the clearance between first straight section of thick bamboo 25 and the cooling needle 3 to carry into human tissue. The first straight tube 25 is inserted into the tissue of the human body together with the cooling needle 3, and then the cooling needle 3 is inserted further inward without moving the first straight tube 25. The length of the first straight cylinder 25 is smaller than that of the cooling needle 3, the tail end of the cooling needle 3 is exposed out of the first straight cylinder 25, the first section of the cooling needle 3 is of a rigid structure, the tail end of the cooling needle 3 is of an elastic structure, and the tail end of the cooling needle is bent in a natural state. The distal end of the cooling needle 3 exposed from the first straight tube 25 is bent to surround the tissue around the tumor from the bottom, thereby enhancing the protective effect on the tissue around the tumor.
Specifically, the injection needle 22 is an elastic injection needle 22 with a bent end in a natural state, a second straight cylinder 26 is sleeved outside the injection needle 22, and the length of the second straight cylinder 26 is smaller than that of the injection needle 22. Similarly, the second straight barrel 26 is configured to enclose the needle 22, and the second straight barrel 26 is rigid and cannot be bent. The inner wall of the second straight cylinder 26 is attached to the outer wall of the injection needle 22, or the diameter of the needle head of the injection needle 22 is larger than that of the needle tube, when the second straight cylinder 26 is sleeved on the cooling needle 3, the lower end face of the second straight cylinder 26 is attached to the outer diameter of the needle head of the injection needle 22, and human tissues are prevented from being clamped by a gap between the second straight cylinder 26 and the injection needle 22. The second straight barrel 26 is inserted into the tissue of the body along with the injection needle 22, and then the second straight barrel 26 is immobilized and the injection needle 22 is inserted further inward. The length of the second straight cylinder 26 is smaller than that of the injection needle 22, the end of the injection needle 22 is exposed out of the second straight cylinder 26, the first section of the injection needle 22 is of a rigid structure, the end is of an elastic structure, and the end is bent under a natural state. The end of the injection needle 22 exposed from the second straight cylinder 26 is bent to inject the medicine into the tissue around the tumor from the bottom, thereby improving the protective effect on the tissue around the tumor.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a microwave ablation device of protection tumour surrounding tissue which characterized in that, includes the sleeve pipe, melts needle, cooling needle and handle, it fixes on the handle to melt the needle, the sleeve pipe with the connection can be dismantled to the handle, the equipartition is equipped with a plurality of around the sleeve pipe cooling needle, the cooling needle with melt and leave the distance between the needle, it is a plurality of the cooling needle is used for surrounding the tumour, it is located a plurality of to melt the needle the centre of the surrounding area that the cooling needle encloses, be equipped with inlet tube and outlet pipe in the cooling needle, the inlet tube with the outlet pipe communicates at the terminal position of cooling needle, the inlet tube is connected with external coolant liquid supply device, the outlet pipe is connected with external water tank.
2. A peritumoral tissue protection microwave ablation device according to claim 1, characterized in that said sleeve is provided with holders on which said cooling needles are clamped.
3. The microwave ablation device for protecting peritumoral tissue according to claim 2, wherein the holder comprises a holding tube, a clamping nozzle, a spring and a groove arranged on the sleeve, the holding tube is arranged in the groove, the spring pulls the holding tube into the groove, the clamping nozzle is arranged at the bottom of the holding tube, the clamping nozzle is a hollow frustum structure formed by splicing at least two holding blocks, and the diameter of the lower bottom surface of the clamping nozzle is larger than that of the groove.
4. The microwave ablation device for protecting peritumoral tissue according to claim 1, wherein an insert is arranged on the upper surface of the sleeve, and a slot is arranged on the lower surface of the handle, and the insert is inserted into the slot.
5. The microwave ablation device for protecting tissues around tumor according to claim 2, wherein the upper surface of the cooling needle is provided with a first contact pin and a second contact pin, the first contact pin is communicated with the water inlet pipe, the second contact pin is communicated with the water outlet pipe, the sleeve is internally provided with a first cavity and a second cavity, the first cavity and the second cavity are respectively separated by a rubber plug and a groove, the first contact pin penetrates through the rubber plug and is inserted into the first cavity, the second contact pin penetrates through the rubber plug and is inserted into the second cavity, the second contact pin is connected with an external cooling liquid supply device, and the second contact pin is connected with an external water tank.
6. The microwave ablation device for protecting peritumoral tissue according to claim 1, wherein the cooling liquid supply device is a water pump, the water pump is arranged in the water tank, a water outlet of the water pump is communicated with the first cavity, and the second cavity is communicated with the water tank.
7. The microwave ablation device for protecting peritumoral tissues according to claim 1, further comprising a plurality of injection needles, wherein the injection needles are uniformly distributed around the sleeve, the injection needles are communicated with an infusion tube, and the infusion tube is communicated with an injector.
8. The microwave ablation device for protecting peritumoral tissue according to claim 1, wherein the cooling needle is an elastic cooling needle with a bent end in a natural state, a first straight cylinder is sleeved outside the cooling needle, and the length of the first straight cylinder is smaller than that of the cooling needle.
9. A microwave ablation device for protecting peritumoral tissue according to claim 1, wherein the injection needle is a flexible injection needle with a bent end in a natural state, and a second straight barrel is sleeved outside the injection needle, and the length of the second straight barrel is smaller than that of the injection needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920770157.0U CN210541810U (en) | 2019-05-27 | 2019-05-27 | Microwave ablation device for protecting peritumoral tissue |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920770157.0U CN210541810U (en) | 2019-05-27 | 2019-05-27 | Microwave ablation device for protecting peritumoral tissue |
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| CN210541810U true CN210541810U (en) | 2020-05-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110051431A (en) * | 2019-05-27 | 2019-07-26 | 海南省妇幼保健院 | A kind of microwave ablation device of protection tumor week tissue |
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2019
- 2019-05-27 CN CN201920770157.0U patent/CN210541810U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110051431A (en) * | 2019-05-27 | 2019-07-26 | 海南省妇幼保健院 | A kind of microwave ablation device of protection tumor week tissue |
| CN110051431B (en) * | 2019-05-27 | 2024-07-19 | 海南省妇幼保健院 | Microwave ablation device for protecting tissue around tumor |
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