CN111419350A

CN111419350A - Novel ultrasonic-guided puncture washing needle

Info

Publication number: CN111419350A
Application number: CN202010233489.2A
Authority: CN
Inventors: 台明辉; 魏炜; 阮骊韬
Original assignee: First Affiliated Hospital of Medical College of Xian Jiaotong University
Current assignee: First Affiliated Hospital of Medical College of Xian Jiaotong University
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-07-17

Abstract

The invention provides a novel ultrasonic-guided puncture washing needle, which belongs to the technical field of medical instruments, and comprises an inner core, a needle tube and an electric cutter, wherein the inner core, the electric cutter and the needle tube are respectively detachably mounted, and the washing needle has two use states, wherein the inner core is inserted into an inner cavity of the needle tube in one state, the end, provided with a cutting knife, of the electric cutter is inserted into the inner cavity of the needle tube in the other state, and the cutting knife is used for crushing viscous liquid or fibrous tissues; the needle tube is of a double-cavity structure and comprises an inner cavity and an outer cavity, the outer cavity is wrapped and arranged on the outer side of the inner cavity, the outer cavity is used for feeding water to flush the sac liquid, and the inner cavity is used for sucking the diluted effusion. The invention not only can fully crush the viscous effusion or fibrous tissues, but also can dilute the viscous effusion while sucking the effusion, thereby achieving better treatment effect.

Description

Novel ultrasonic-guided puncture washing needle

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a novel ultrasonic-guided puncture washing needle.

Background

For infectious pleural and peritoneal effusion and cystic lesions of some parenchymal organs (such as liver abscess, liver cystic echinococcosis and the like), puncture drainage under the guidance of ultrasound is a common treatment mode and has definite curative effect. The traditional treatment mode is to place a puncture needle into the effusion or the cystic cavity for direct suction or place a drainage tube along the puncture needle channel for continuous drainage, but the methods have certain problems, on one hand, the infectious effusion can become very sticky after being organized for a long time or the fibers are more separated, so the puncture needle is blocked to cause difficulty in suction, and finally the treatment fails; on the other hand, the puncture needle is mostly single chamber structure, can't wash in the suction, can not dilute the bag liquid better and accomplish abundant drainage. Therefore, the existing puncture needle is urgently needed to be improved, so that the operation is more convenient and the effect is more ideal.

Disclosure of Invention

In view of the above, the present invention is directed to a novel ultrasonic-guided puncture toilet needle, which can solve the above problems.

In order to achieve the purpose, the technical scheme of the invention is realized as follows: novel puncture washing needle under ultrasonic guidance, comprising an inner core, a needle tube and an electric cutter, wherein the inner core, the electric cutter and the needle tube are respectively detachably mounted, the washing needle has two using states, one state is that the inner core is inserted into an inner cavity of the needle tube, the other state is that one end of the electric cutter provided with a cutting knife is inserted into the inner cavity of the needle tube, and the cutting knife is used for crushing viscous liquid or fibrous tissues; the needle tube is of a double-cavity structure and comprises an inner cavity and an outer cavity, the outer cavity is wrapped and arranged on the outer side of the inner cavity, the outer cavity is used for feeding water to flush the sac liquid, and the inner cavity is used for sucking the diluted effusion.

Further, the needle tubing includes oral siphon, outer wall, inner wall, washing hole, exocoel, inner chamber and suction hole, the outer wall sets up the outside of inner wall, outer wall and inner wall enclose the exocoel, the inner wall independently encloses the inner chamber, the oral siphon is installed on the outer wall, just the oral siphon's oral siphon with the exocoel communicates with each other, the outer wall is kept away from the one end of oral siphon is provided with a plurality ofly washing hole, and is a plurality of washing hole all with the exocoel communicates with each other, the suction hole sets up the needle tubing is close to the one end in washing hole.

Furthermore, scales are arranged on the outer wall of the needle tube.

Furthermore, a check valve is arranged in the water inlet pipe and used for preventing the bag liquid from flowing back along the washing hole after the puncture is successful.

Further, electric cutter includes electric handle, play water subassembly, rotation axis, cutting knife, control switch, electric handle passes through play water subassembly with the rotation axis is connected, the cutting knife is installed the rotation axis is kept away from electric handle's one end, control switch sets up on electric handle's the lateral wall.

Furthermore, the upper end of the side wall of the electric handle is provided with anti-skid grains.

Furthermore, the cutting knife is of a saw-toothed metal cutting wire structure.

Further, go out the water subassembly and include outlet pipe, connecting seat, interface and antifriction bearing, install antifriction bearing in the connecting pipe, the connecting seat is installed antifriction bearing's inner circle, simultaneously the one end of connecting seat with connect to the interface, the other end with the rotation axis is connected, the connecting pipe be provided with the one end to the interface with electric handle sealing connection, just to the interface with electric handle's motor output shaft, the other end of connecting pipe with needle tubing sealing connection, the connecting pipe is close to the one end of needle tubing is installed the outlet pipe, just the delivery port of outlet pipe with the needle tubing communicates with each other.

Furthermore, the electric handle is a reusable device, and the rest components are disposable devices.

Compared with the prior art, the novel ultrasonic-guided puncture wash needle has the following advantages:

(1) the washing needle provided by the invention can fully crush viscous effusion or fibrous tissue by high-speed rotation of the cutting knife, thereby effectively avoiding the phenomenon of blockage of the puncture needle;

(2) the washing needle has a double-cavity needle tube structure, and can dilute viscous liquid accumulation while sucking, so that the liquid accumulation is fully drained; when the cyst sclerosis treatment is carried out, the perfusion and the suction realize double channels, thereby achieving better treatment effect.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a lancet used in a puncturing operation according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic structural view of a wash needle according to an embodiment of the present invention;

FIG. 4 is a partial enlarged view of portion B of FIG. 3;

FIG. 5 is a schematic view of a syringe according to an embodiment of the present invention;

fig. 6 is a schematic structural view of an electric cutter according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a water outlet assembly according to an embodiment of the invention.

Description of reference numerals:

1. an inner core; 2. a needle tube; 3. electric cutters; 4. a water inlet pipe; 5. an outer wall; 6. an inner wall; 7. washing holes; 8. calibration; 9. an outer cavity; 10. an inner cavity; 11. a suction hole; 12. a check valve; 13. an electric handle; 14. a water outlet assembly; 15. a rotating shaft; 16. a cutting knife; 17. anti-skid lines; 18. a control switch; 19. a water outlet pipe; 20. a connecting pipe; 21. a connecting seat; 22. a butt joint port; 23. a rolling bearing.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1-7, the invention relates to a novel ultrasonic-guided puncture wash needle, which comprises an inner core 1, a needle tube 2 and an electric cutter 3, wherein the inner core 1, the electric cutter 3 and the needle tube 2 are detachably mounted respectively, and the wash needle has two use states, wherein one of the two use states is that the inner core 1 is inserted into an inner cavity 10 of the needle tube 2, so that accurate puncture of accumulated liquid or sac liquid under ultrasonic guidance is completed, and then the inner core can be pulled out; in the other state, one end of the electric cutter 3, which is provided with the cutting knife 16, is inserted into the inner cavity 10 of the needle tube 2, and the cutting knife 16 is used for crushing viscous effusion or fibrous tissues; the needle tube 2 is of a double-cavity structure and comprises an inner cavity 10 and an outer cavity 9, the outer cavity 9 is wrapped and arranged on the outer side of the inner cavity 10, the outer cavity 9 is used for water inflow and capsule liquid flushing, and the inner cavity 10 is used for sucking diluted effusion.

The needle tube 2 comprises a water inlet tube 4, an outer wall 5, an inner wall 6, a washing hole 7, an outer cavity 9, an inner cavity 10 and a suction hole 11, wherein the outer wall 5 is arranged at the outer side of the inner wall 6, the outer wall 5 and the inner wall 6 enclose the outer cavity 9, the inner wall 6 independently encloses the inner cavity 10, the water inlet tube 4 is arranged on the outer wall 5, a water inlet hole of the water inlet tube 4 is communicated with the outer cavity 9, one end of the outer wall 5, far away from the water inlet tube 4, is provided with a plurality of washing holes 7, the washing holes 7 are all communicated with the outer cavity 9, and the suction hole 11 is arranged at one end, close to the washing hole 7, of the needle tube 2; the exocoel 9 accessible the oral siphon 4 gives therapeutical medicine (antibiotic or sclerosing agent), and the medicine is followed wash hole 7 gets into the focus cyst cavity, dilutes the hydrops in the suction to more abundant drainage, when carrying out cyst sclerosis treatment, pour into and suction realization dual-channel, thereby can reach better treatment.

The outer wall 5 of the needle tube 2 is provided with scales 8, so that an operator can conveniently judge the penetration depth of the wash needle. In clinical use, the length of the needle tube can be designed into two specifications of 15cm and 25cm so as to be respectively suitable for pathological changes with different depths; the outer diameter of the needle tube is designed to be 8mm, so that the puncture hole is reduced as far as possible while the internal structure of the double cavities of the needle tube is guaranteed to have rigidity and practicability, and the wound is reduced.

A check valve 12 is arranged in the water inlet pipe 4 and is used for preventing the bag liquid from flowing backwards along the washing hole 7 after the puncture is successful.

Electric cutter 3 includes electric handle 13, water outlet assembly 14, rotation axis 15, cutting knife 16, control switch 18, electric handle 13 passes through water outlet assembly 14 with rotation axis 15 is connected, rotation axis 15 is made for high strength metal, is difficult for taking place deformation, cutting knife 16 installs rotation axis 15 is kept away from electric handle 13's one end, control switch 18 sets up on electric handle 13's the lateral wall, control switch 18 can adjust control rotation axis 15's rotation rate.

The upper end of the side wall of the electric handle 13 is provided with anti-slip threads 17, so that the friction force of an operator when holding the electric handle 13 is increased.

The cutting knife 16 is a saw-toothed metal cutting wire structure, so that the rotating resistance of the rotating shaft 15 is effectively reduced, and the force arm for longitudinally cutting the crushed surface is increased.

The water outlet assembly 14 comprises a water outlet pipe 19, a connecting pipe 20, a connecting seat 21, a butt joint port 22 and a rolling bearing 23, the rolling bearing 23 is installed in the connecting pipe 20, the connecting seat 21 is installed at an inner ring of the rolling bearing 23, meanwhile, one end of the connecting seat 21 is connected with the butt joint port 22, the other end of the connecting seat 21 is connected with the rotating shaft 15, one end of the connecting pipe 20 provided with the butt joint port 22 is connected with the electric handle 13 in a sealing mode, the butt joint port 22 is connected with a motor output shaft of the electric handle 13, the other end of the connecting pipe 20 is connected with the needle tube 2 in a sealing mode, sealing performance of the water outlet assembly 14 is effectively guaranteed by adopting sealing connection, the water outlet pipe 19 is installed at one end, close to the needle tube 2, of the connecting pipe 20, a water outlet of the water outlet, the negative pressure suction device is an existing foundation.

The electric handle 13 is a reusable device, and other components are disposable devices to avoid cross contamination.

In the actual work process, at first with inner core 1 with 2 combinations of needle tubing, insert inner core 1 in needle tubing 2's inner chamber 10, then puncture under carrying out the supersound guide, the puncture is successful after, extract inner core 1, insert electronic cutter 3, and be connected outlet pipe 19 with current negative pressure suction device, start electronic cutter 3, the cutting knife 16 high-speed rotation of electronic cutter 3 head end, will glue thick hydrops or fibrous tissue fully crushing, in this moment, exocoel 9 accessible oral siphon 4 gives therapeutical medicine (antibiotic or hardener), from washing hole 7 entering focus cyst chamber, dilute the hydrops in the suction, so that more abundant drainage, when carrying out cyst sclerosis treatment, fill and suction realization bi-pass, thereby can reach better treatment.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. Novel puncture washing needle under ultrasonic guidance, its characterized in that: the needle comprises an inner core (1), a needle tube (2) and an electric cutter (3), wherein the inner core (1), the electric cutter (3) and the needle tube (2) are detachably mounted respectively, the needle is in two using states, one state is that the inner core (1) is inserted into an inner cavity (10) of the needle tube (2), the other state is that one end of the electric cutter (3) provided with a cutting knife (16) is inserted into the inner cavity (10) of the needle tube (2), and the cutting knife (16) is used for crushing viscous liquid or fibrous tissues; the needle tube (2) is of a double-cavity structure and comprises an inner cavity (10) and an outer cavity (9), the outer cavity (9) is wrapped and arranged on the outer side of the inner cavity (10), the outer cavity (9) is used for water inflow and capsule liquid flushing, and the inner cavity (10) is used for sucking diluted effusion.

2. The novel ultrasound-guided puncture vanity wash needle as claimed in claim 1, wherein: needle tubing (2) is including oral siphon (4), outer wall (5), inner wall (6), washing hole (7), exocoel (9), inner chamber (10) and suction hole (11), outer wall (5) set up the outside of inner wall (6), outer wall (5) and inner wall (6) enclose exocoel (9), inner wall (6) enclose independently inner chamber (10), oral siphon (4) are installed on outer wall (5), just the oral siphon's (4) income water hole with exocoel (9) communicate with each other, outer wall (5) are kept away from the one end of oral siphon (4) is provided with a plurality ofly washing hole (7), it is a plurality of washing hole (7) all with exocoel (9) communicate with each other, suction hole (11) set up needle tubing (2) are close to the one end of washing hole (7).

3. The novel ultrasound-guided puncture vanity wash needle as claimed in claim 2, wherein: the outer wall (5) of the needle tube (2) is provided with scales (8).

4. The novel ultrasound-guided puncture vanity wash needle as claimed in claim 2, wherein: and a check valve (12) is arranged in the water inlet pipe (4) and used for preventing the bag liquid from flowing back along the washing hole (7) after the puncture is successful.

5. The novel ultrasound-guided puncture vanity wash needle as claimed in claim 1, wherein: electric cutter (3) include electric handle (13), go out water subassembly (14), rotation axis (15), cutting knife (16), control switch (18), electric handle (13) pass through go out water subassembly (14) with rotation axis (15) are connected, cutting knife (16) are installed rotation axis (15) are kept away from the one end of electric handle (13), control switch (18) set up on the lateral wall of electric handle (13).

6. The novel ultrasound-guided puncture vanity wash needle as claimed in claim 5, wherein: the upper end of the side wall of the electric handle (13) is provided with anti-skid grains (17).

7. The novel ultrasound-guided puncture vanity wash needle as claimed in claim 5, wherein: the cutting knife (16) is of a saw-toothed metal cutting wire structure.

8. The novel ultrasound-guided puncture vanity wash needle according to claim 1 or 5, characterized in that: the water outlet component (14) comprises a water outlet pipe (19), a connecting pipe (20), a connecting seat (21), a butt joint port (22) and a rolling bearing (23), a rolling bearing (23) is installed in the connecting pipe (20), the connecting seat (21) is installed on the inner ring of the rolling bearing (23), meanwhile, one end of the connecting seat (21) is connected with the butt joint port (22), the other end is connected with the rotating shaft (15), one end of the connecting pipe (20) provided with a butt joint (22) is hermetically connected with the electric handle (13), and the butt joint port (22) is connected with the motor output shaft of the electric handle (13), the other end of the connecting pipe (20) is hermetically connected with the needle tube (2), one end of the connecting pipe (20) close to the needle tube (2) is provided with the water outlet pipe (19), and the water outlet of the water outlet pipe (19) is communicated with the needle tube (2).

9. The novel ultrasound-guided puncture vanity wash needle according to any one of claims 1 to 5, characterized in that: the electric handle (13) is a reusable device, and the rest components are disposable devices.