CN118021406A - Tumor minimally invasive interventional therapy puncture needle - Google Patents
Tumor minimally invasive interventional therapy puncture needle Download PDFInfo
- Publication number
- CN118021406A CN118021406A CN202410365762.5A CN202410365762A CN118021406A CN 118021406 A CN118021406 A CN 118021406A CN 202410365762 A CN202410365762 A CN 202410365762A CN 118021406 A CN118021406 A CN 118021406A
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- Prior art keywords
- device body
- guide device
- liquid
- connecting channel
- guide
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- 206010028980 Neoplasm Diseases 0.000 title claims abstract description 14
- 238000002560 therapeutic procedure Methods 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 239000012780 transparent material Substances 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000008280 blood Substances 0.000 abstract description 5
- 210000004369 blood Anatomy 0.000 abstract description 5
- 238000001727 in vivo Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002690 local anesthesia Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a tumor minimally invasive interventional therapy puncture needle, which comprises a sheath tube, a needle core inserted in the sheath tube and a guide device fixed at the proximal end of the sheath tube; the side wall of the long tube part of the sheath tube is provided with a liquid guide hole, and the outer side wall of the long tube part is fixedly provided with a screw sleeve; the guide device comprises a guide device body made of transparent materials, a connecting channel is arranged in the middle of the guide device body, and the connecting channel penetrates through the guide device body; the connecting channel is fixedly connected with the threaded sleeve through threads; the guide device body is internally provided with a buffer cavity which is communicated with the inside of the long pipe part through the liquid guide hole; a liquid guide pipe is fixedly arranged outside the guide device body and communicated with the inside of the buffer cavity; blood or other in-vivo liquid is guided to the buffering cavity, so that the blood or other in-vivo liquid is prevented from flowing out of the proximal port of the sheath tube in a large quantity, and interference to the inserting operation of the next instrument is reduced. Meanwhile, the puncture effect of the puncture needle can be judged by observing the liquid state in the buffer cavity of the guide device body.
Description
Technical Field
The application belongs to the technical field of tumor minimally invasive treatment, and particularly relates to a tumor minimally invasive interventional therapy puncture needle.
Background
The tumor minimally invasive interventional therapy has the characteristics of small wound, quick recovery, combined application of various technologies and the like. In the operation, local anesthesia is generally adopted, and a medicine or an instrument is introduced into a designated position for treatment by using special instruments for precise operations such as a puncture needle, a guider, a guide wire, a catheter and the like through medical image guidance.
In the operation process, various minimally invasive special instruments are matched with each other according to the operation flow, and the combination between the needle core and the sheath tube is tight, so that under some operation processes, relatively more blood flows out from the proximal port of the puncture needle in the process of drawing out the puncture needle core, and certain interference is caused to the operation.
Disclosure of Invention
The application aims to overcome the defects of the prior art and provides a tumor minimally invasive interventional therapy puncture needle which can reduce blood outflow from a proximal port of the puncture needle, thereby reducing operation interference.
In order to achieve the above purpose, the application adopts the following technical scheme:
A tumor minimally invasive interventional therapy puncture needle comprises a sheath, a needle core inserted in the sheath and a guiding device fixed at the proximal end of the sheath;
The sheath tube comprises a long tube part, the side wall of the long tube part is provided with a liquid guide hole, the liquid guide hole is positioned between a near end opening and a far end opening of the long tube part, the outer side wall of the long tube part is fixedly provided with a screw sleeve, and the screw sleeve comprises an upper screw sleeve and a lower screw sleeve;
The guide device comprises a guide device body made of transparent materials, wherein a connecting channel is arranged in the middle of the guide device body, and the connecting channel penetrates through the guide device body; the connecting channel is internally provided with threads, and the connecting channel is fixedly connected with the threaded sleeve through the threads; the guide device comprises a guide device body, wherein a buffer cavity is arranged in the guide device body, the buffer cavity is positioned at the periphery of a connecting channel, the buffer cavity and the connecting channel are mutually communicated through a communication cavity, the position of the communication cavity corresponds to a liquid guide hole, and the communication cavity is communicated with the inside of a long pipe part through the liquid guide hole; a liquid guide pipe is fixedly arranged outside the guide device body and communicated with the inside of the buffer cavity;
when the guiding device body is fixedly connected with the long pipe part, the upper screw sleeve is positioned above the liquid guiding hole, and the lower screw sleeve is positioned below the liquid guiding hole.
In one embodiment, the guide device body is internally provided with a tapered slot, the proximal end of the connecting channel is in communication with the bottom of the tapered slot, and the proximal end of the long tube is located at the bottom of the tapered slot when the guide device body is fixedly connected with the long tube.
In one embodiment, the sheath is a metal sheath, the core is a metal core, and the guide means is a transparent plastic guide means.
In one embodiment, the long tube portion is provided with 3 liquid guiding holes, and the 3 liquid guiding holes are uniformly distributed along the outer circumference of the long tube portion.
In one embodiment, the bottom of the guiding device body is fixedly provided with a force plate, the length of which is larger than the diameter of the guiding device body.
The technical scheme adopted by the application at least can achieve the following positive effects:
The guide device body is fixedly arranged on the outer side of the long tube part to guide blood or other in-vivo liquid to the guide buffer cavity, so that a large amount of blood or other in-vivo liquid is prevented from flowing out of the proximal port of the sheath tube, and interference on the plugging operation of the next instrument is reduced. Meanwhile, the puncture effect of the puncture needle can still be judged by observing the liquid state in the buffer cavity of the guide device body.
The taper groove is arranged on the guiding device body, so that the needle core, the guide wire and other instruments can be guided to be aligned with the inlet port of the long tube smoothly.
The guiding device body is a plastic part, the sheath tube and the needle core are metal parts, and the plastic part and the metal parts can be disassembled, so that the guiding device is convenient to use and then disinfect and reuse.
Drawings
FIG. 1 is a schematic diagram of the structure of the present application;
FIG. 2 is a schematic view of the combined structure of the sheath and the needle core of the present application;
FIG. 3 is a schematic view of the structure of the sheath of the present application;
Fig. 4 is a schematic view (perspective schematic view) of the structure of the guide device of the present application;
FIG. 5 is a schematic structural view of the sheath and guide assembly relationship of the present application;
FIG. 6 is a schematic diagram of the positional relationship of a magnet and a connecting channel in one embodiment of the application (perspective schematic);
In the drawing, 1, a sheath tube; 11. a long tube portion; 111. a proximal port; 112. a remote port; 12. a liquid guiding hole; 13. an upper screw sleeve; 14. a lower screw sleeve; 2. a needle core; 3. a guide device; 31. a guide device body; 32. a connection channel; 33. a buffer chamber; 34. a catheter; 35. a conical groove; 36. a force plate; 37. a thread; 38. a magnet; and 39, communicating the cavity.
Detailed Description
In the following embodiments, the upper end of the puncture needle is the proximal end, and the lower end of the puncture needle is the distal end.
Example 1
As shown in fig. 1 and 2, this embodiment discloses a tumor minimally invasive interventional therapy puncture needle. It comprises a sheath tube 1, a needle core 2 inserted in the sheath tube 1 and a guiding device 3 fixed at the proximal end of the sheath tube 1.
Referring to fig. 3, the sheath tube 1 comprises a long tube part 11, a liquid guide hole 12 is arranged on the side wall of the long tube part 11, the liquid guide hole 12 is positioned between the proximal end opening and the distal end opening of the long tube part 11, a screw sleeve is fixedly arranged on the outer side wall of the long tube part 11, and the screw sleeve comprises an upper screw sleeve 13 and a lower screw sleeve 14.
Referring to fig. 4, the guide device 3 includes a guide device body 31 made of transparent material, a connection channel 32 is provided in the middle of the guide device body 31, and the connection channel 32 penetrates the guide device body 31; threads are arranged in the connecting channel 32, and the connecting channel 32 is fixedly connected with the threaded sleeve through the threads; the guide device body 31 is internally provided with a buffer cavity 33, the buffer cavity 33 is positioned at the periphery of the connecting channel 32, the buffer cavity 33 and the connecting channel 32 are mutually communicated through a communication cavity 39, the position of the communication cavity 39 corresponds to the liquid guide hole 12, and the communication cavity 39 is communicated with the inside of the long tube part 11 through the liquid guide hole 12; ; the guide device body 31 is fixedly provided with a liquid guide tube 34 at the outer part, and the liquid guide tube 34 is communicated with the inner part of the buffer cavity 33.
When the guide device body 31 is fixedly connected with the long tube portion 11, the upper screw sleeve 13 is positioned above the liquid guiding hole 12, and the lower screw sleeve 14 is positioned below the liquid guiding hole 12.
The long tube part 11 is provided with 3 liquid guide holes 12, and 3 liquid guide holes 12 are uniformly distributed along the outer circumference of the long tube part 11.
The sheath tube 1 is a metal sheath tube 1, the needle core 2 is a metal needle core, and the guiding device 3 is a transparent plastic guiding device 3.
Further, a switch for controlling the opening and closing of the catheter 34 is provided on the catheter 34.
During assembly, the long tube part 11 is extended into the connecting channel 32 from top to bottom and is locked with the screw sleeve through threads. After the assembly is finished, the upper port of the long tube part 11 is positioned at the upper port of the connecting channel 32, and the liquid guide hole 12 is communicated with the buffer cavity 33. By the combination of the thread and the screw sleeve, the purpose of preventing the liquid from flowing out of the buffer cavity 33 is achieved. In use, the needle core 2 is inserted into the sheath 1 to form a puncture needle, and after the puncture is completed, the needle core 2 is withdrawn, and at this time, a majority of the liquid in the outflow body enters the liquid guiding hole 12 along the long tube portion 11 and enters the buffer cavity 33, and flows out through the liquid guiding tube 34, and is guided to a position further away from the operation area through the liquid guiding tube 34. Preventing excessive liquid from flowing out of the upper port of the long tube portion 11 and causing a large disturbance to the operation in the next step. And in the process, the doctor can still observe the liquid outflow state in the buffer cavity 33 through the guide device body 31 to judge the puncture effect. At the same time, the guide device body 31 and the long tube part 11 are in a detachable structure, so that the long tube part 11 is convenient to be disinfected and reused.
Referring to fig. 4 and 5, the guide body 31 is internally provided with a tapered groove 35, and the proximal end of the connection channel 32 communicates with the bottom of the tapered groove 35, and the proximal end of the long tube portion 11 is positioned at the bottom of the tapered groove 35 when the guide body 31 is fixedly connected to the long tube portion 11.
During use, the distal end of the elongate instrument, such as a needle 2, guidewire, etc., can be slid along the tapered slot 35 toward the long tubular portion 11 to facilitate access to the proximal end of the Ji Changguan portion 11.
Referring to fig. 2, the bottom of the guide device body 31 is fixedly provided with a force plate 36, and the force plate 36 has a length greater than the diameter of the guide device body 31.
In use, the hand grips the grip plate 36 to facilitate penetration of the lancet into tissue.
Example 2
Referring to fig. 3 and 6, this embodiment differs from the other embodiments in that: a magnet 38 is fixedly disposed within the connecting channel 32, the magnet 38 being located below the upper port of the connecting channel 32, the magnet 38 being 2-5 mm from the upper port of the connecting channel 32.
Further, the side wall of the connecting channel 32 is provided with an embedded groove, and the magnet 28 is fixedly arranged in the embedded groove.
In use, the distal alignment of the elongate instrument is often inconvenient, and even with the tapered slot 35, some flexible instruments still tend to fall out of alignment as the fluid exits the upper port of the occlusion long tubular portion 11. The use of the tapered slot 35 in combination with the magnet 38 further increases the speed at which the instrument can be aligned with the upper port of the long tubular portion 11. When the distal end of the metal slender instrument moves along the tapered groove 35 toward the long tube portion 11, the distal end reaches the vicinity of the upper port of the long tube portion 11 and is attracted to the upper port by the magnet 38, so that the distal end has an attracting feeling, and the doctor can be assisted in inserting the instrument.
The foregoing is a further detailed description of the application in connection with the preferred embodiments, and it is not intended that the application be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the application, and these should be considered to be within the scope of the application.
Claims (5)
1. A tumor minimally invasive interventional therapy puncture needle, which is characterized in that: comprises a sheath tube, a needle core inserted in the sheath tube and a guiding device fixed at the proximal end of the sheath tube;
The sheath tube comprises a long tube part, the side wall of the long tube part is provided with a liquid guide hole, the liquid guide hole is positioned between a near end opening and a far end opening of the long tube part, the outer side wall of the long tube part is fixedly provided with a screw sleeve, and the screw sleeve comprises an upper screw sleeve and a lower screw sleeve;
The guide device comprises a guide device body made of transparent materials, wherein a connecting channel is arranged in the middle of the guide device body, and the connecting channel penetrates through the guide device body; the connecting channel is internally provided with threads, and the connecting channel is fixedly connected with the threaded sleeve through the threads; the guide device comprises a guide device body, wherein a buffer cavity is arranged in the guide device body, the buffer cavity is positioned at the periphery of a connecting channel, the buffer cavity and the connecting channel are mutually communicated through a communication cavity, the position of the communication cavity corresponds to a liquid guide hole, and the communication cavity is communicated with the inside of a long pipe part through the liquid guide hole; a liquid guide pipe is fixedly arranged outside the guide device body and communicated with the inside of the buffer cavity;
when the guiding device body is fixedly connected with the long pipe part, the upper screw sleeve is positioned above the liquid guiding hole, and the lower screw sleeve is positioned below the liquid guiding hole.
2. The tumor minimally invasive interventional therapy puncture needle according to claim 1, wherein: the guide device body is internally provided with a conical groove, the proximal end of the connecting channel is communicated with the bottom of the conical groove, and when the guide device body is fixedly connected with the long pipe, the proximal end opening of the long pipe is positioned at the bottom of the conical groove.
3. A tumor minimally invasive interventional therapy puncture needle according to claim 2, characterized in that: the sheath tube is a metal sheath tube, the needle core is a metal needle core, and the guiding device is a transparent plastic guiding device.
4. The tumor minimally invasive interventional therapy puncture needle according to claim 1, wherein: the long pipe portion is provided with 3 liquid guide holes, and 3 liquid guide holes are evenly distributed along the outer circumference of the long pipe portion.
5. The tumor minimally invasive interventional therapy puncture needle according to claim 1, wherein: the bottom of the guiding device body is fixedly provided with a force plate, and the length of the force plate is larger than the diameter of the guiding device body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410365762.5A CN118021406A (en) | 2024-03-28 | 2024-03-28 | Tumor minimally invasive interventional therapy puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410365762.5A CN118021406A (en) | 2024-03-28 | 2024-03-28 | Tumor minimally invasive interventional therapy puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118021406A true CN118021406A (en) | 2024-05-14 |
Family
ID=90991395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410365762.5A Pending CN118021406A (en) | 2024-03-28 | 2024-03-28 | Tumor minimally invasive interventional therapy puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118021406A (en) |
-
2024
- 2024-03-28 CN CN202410365762.5A patent/CN118021406A/en active Pending
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