CN115737115A - Detachable microwave ablation catheter - Google Patents

Abstract

The invention relates to the technical field of medical instruments, in particular to a detachable microwave ablation catheter. The specific technical scheme is as follows: the utility model provides a detachable microwave ablation pipe, includes syringe needle, the needle tubing be connected with the syringe needle and set up the cable of being connected in the needle tubing and with the syringe needle, the other end of needle tubing is connected with the handle, the tip of handle can be dismantled and be connected with attach fitting, be provided with the battery in the handle, be provided with the LED lamp in the needle tubing, LED lamp and battery electric connection, the handle includes the handle seat and can dismantle the handle body of being connected with the handle seat, be provided with spacing hole on the lateral wall of the junction of handle seat and handle body, the one end of handle body is provided with the limiting plate, be provided with the stopper that corresponds and the adaptation with spacing hole on the outer wall of limiting plate. The invention solves the problem that medical personnel are inconvenient to operate because the optical fiber power supply is arranged externally in the prior art.

Description

Detachable microwave ablation catheter

Technical Field

The invention relates to the technical field of medical instruments, in particular to a detachable microwave ablation catheter.

Background

The microwave ablation technology is a modern minimally invasive technology which is widely applied. In recent years, microwave ablation has been applied to various focal tissues such as heart, cancer tumor, and skin. The microwave thermal ablation technology is that microwave energy does not directly enter a human body, but heat energy is generated inside an instrument and then is transmitted to the human body to generate a thermal ablation effect. Because the technology is less traumatic to human body, and the ablation mode can be precisely controlled by an electronic system, the technology is more adopted in modern active minimally invasive surgery.

In the prior art, especially for subcutaneous ablation, an optical fiber is usually arranged in a needle tube, so as to indicate the position of a needle head and accurately position the needle head. However, when the optical fiber is connected to a power source, the optical fiber is generally electrically connected to the optical fiber by an external power source. In this way, when the needle head and the needle tube enter the human body, the operation of medical staff is inconvenient because the connecting lead is externally arranged. Moreover, ablation catheters are typically disposable products that are discarded after use, thereby resulting in an excessive cost for the ablation catheter.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a detachable microwave ablation catheter, which solves the problems that medical staff are inconvenient to operate and the cost is high due to the external optical fiber power supply in the prior art.

In order to realize the purpose, the invention is realized by the following technical scheme:

the invention discloses a detachable microwave ablation catheter which comprises a needle head, a needle tube connected with the needle head and a cable arranged in the needle tube and connected with the needle head, wherein the other end of the needle tube is connected with a handle, the end part of the handle is detachably connected with a connecting joint, a battery is arranged in the handle, an LED lamp is arranged in the needle tube and electrically connected with the battery, an inserting column electrically connected with the battery and the LED lamp respectively is arranged in the handle, a conductive column matched with the inserting column is arranged in the connecting joint, and after the handle is connected with the connecting joint, the LED lamp is electrified;

the handle includes the handle seat and can dismantle the handle body of being connected with the handle seat, be provided with spacing hole on the lateral wall of the junction of handle seat and handle body, the one end of handle body is provided with the limiting plate, be provided with the stopper that corresponds and the adaptation with spacing hole on the outer wall of limiting plate.

Preferably, one end of the needle head is provided with an insulating sleeve, the other end of the insulating sleeve is provided with a reinforcing pipe, and the other end of the reinforcing pipe is connected with the needle tube.

Preferably, the other end of the handle body is provided with a fixed shell, a male connector is arranged in the fixed shell, the cable is connected with the male connector, a female connector matched with the male connector is arranged on the connecting connector and corresponds to the female connector, and the female connector is connected with the microwave generator through a cable.

Preferably, the connection joint comprises a connection shell, the female joint is arranged on the end face of the connection shell corresponding to the fixed shell, and the fixed shell and the connection shell are fixedly inserted.

Preferably, insert the post and be provided with two, fix respectively on the set casing, and stretch out outside the set casing, two insert the post respectively with battery and LED lamp electric connection, it is provided with two to lead electrical pillar, set up respectively on the terminal surface of connecting the shell to with insert the post one-to-one, two it is electrically connected to lead between the electrical pillar to lead.

Preferably, a fixing cylinder is arranged in the handle body, one end of the needle tube penetrates through the handle seat and is connected with the fixing cylinder, the other end of the fixing cylinder is connected with a sleeve, the other end of the sleeve is fixed on the fixing shell, the male connector is located in the sleeve, and the cable penetrates through the fixing cylinder and the sleeve and is connected with the male connector.

Preferably, the battery is disposed in the handle body, and the LED lamp is located in the reinforcement tube.

Preferably, one end of the needle tube extends into the handle seat and is fixed on the inner wall of the handle seat through a fixing strip, one end of the needle tube, which is positioned in the handle seat, is fixedly inserted into the fixing cylinder, the lamp wire of the LED lamp penetrates through the needle tube and is fixed in the needle tube, a wire connected with a battery is arranged in the fixing cylinder, and after the needle tube is fixed with the fixing cylinder, the lamp wire of the LED lamp is communicated with the wire.

Preferably, a fixed sleeve is arranged at one end of the needle tube extending into the handle seat, a fixed pad is arranged in the fixed sleeve, a guide pillar is embedded in the fixed pad and connected with the lamp wire and the cable, a supporting pad is fixed on the inner wall of one end of the fixed cylinder fixed with the needle tube, a conductive sleeve matched with the guide pillar is embedded in the supporting pad, and the guide wire is connected with the conductive sleeve.

Preferably, be provided with on leading electrical pillar and the corresponding terminal surface of inserting the post with inserting the recess of post adaptation, when making to insert the post and insert the recess, insert the post and lead electrical pillar contact.

The invention has the following beneficial effects:

1. according to the invention, the inserting column is arranged in the handle, the conductive column is arranged in the connecting joint, the inserting column and the conductive column are respectively provided with two, one end of the cable is connected with the needle head, the other end of the cable is connected with the male joint, and the female joint is connected with the female joint through the cable. Two lamp lines of LED lamp connect the battery respectively and one of them inserts the post, and another inserts the post and is connected with the battery, and two are LED electrical pillar and are connected through the wire, insert the post when leading electrical pillar after, battery, LED lamp, insert and form a return circuit between the post and leading electrical pillar to make the battery supply power to the LED lamp, the LED lamp is bright, and then the position of instruction syringe needle, simultaneously, male joint and female joint insert the connection, make microwave generator pass through the cable and let in the energy to the syringe needle. The invention adopts a mode of arranging the battery in, supplies power to the LED lamp, and is convenient for medical personnel to correspondingly operate the whole device.

2. According to the ablation catheter, the handle seat and the handle body are detachably connected, so that the needle tube and the fixing cylinder are inserted and fixed, the LED lamp is communicated with the inside of the fixing cylinder in a conductive manner, and the LED lamp is powered by the battery.

Drawings

FIG. 1 is a schematic structural view of the present invention;

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

FIG. 3 is a view of the receptacle of FIG. 1 in the direction A;

fig. 4 is a view of the conductive post of fig. 1 in the direction B;

FIG. 5 is an enlarged view of a portion A of FIG. 1;

FIG. 6 isbase:Sub>A view from A-A of the handle seat;

FIG. 7 is an enlarged view of the connecting end of the handle body and the handle base;

in the figure: the LED lamp comprises a needle head 1, a needle tube 2, a cable 3, a battery 4, an LED lamp 5, an inserting column 6, a conductive column 7, an insulating sleeve 8, a reinforcing tube 9, a handle seat 10, a handle body 11, a fixing shell 12, a male connector 13, a female connector 14, a connecting shell 15, a fixing tube 16, a sleeve 17, a groove 18, a limiting hole 19, a limiting plate 20, a limiting block 21, a fixing strip 22, a fixing sleeve 23, a fixing pad 24, a guide column 25, a supporting pad 26, a conductive sleeve 27, a supporting plate 28, a channel 29 and a limiting strip 30.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Unless otherwise indicated, the technical means used in the examples are conventional means well known to those skilled in the art.

Referring to fig. 1-7, the invention discloses a detachable microwave ablation catheter, which comprises a needle 1, a needle tube 2 connected with the needle 1, and a cable 3 arranged in the needle tube 2 and connected with the needle 1, wherein one end of the needle 1 is provided with an insulating sleeve 8, the other end of the insulating sleeve 8 is provided with a reinforcing tube 9, and the other end of the reinforcing tube 9 is connected with the needle tube 2. The other end of the needle tube 2 is connected with a handle, the end part of the handle is detachably connected with a connecting joint, a battery 4 is arranged in the handle, an LED lamp 5 is arranged in the needle tube 2, the LED lamp 5 is electrically connected with the battery 4, an inserting column 6 electrically connected with the battery 4 and the LED lamp 5 respectively is arranged in the handle, a conductive column 7 matched with the inserting column 6 is arranged in the connecting joint, and after the handle is connected with the connecting joint, the LED lamp 5 is electrified.

Specifically, the method comprises the following steps: the handle includes handle seat 10 and the handle body 11 of being connected can be dismantled with handle seat 10, and needle tubing 2 stretches into in handle seat 10 and with needle tubing 2 fixed connection, is provided with spacing hole 19 on the lateral wall of the junction of handle seat 10 and handle body 11, and the one end of handle body 11 is provided with limiting plate 20, is provided with the stopper 21 that corresponds and the adaptation with spacing hole 19 on the outer wall of limiting plate 20. The limiting plate 20 is inserted into the handle seat 10, and the limiting block 21 is clamped into the limiting hole 19, so that the handle seat and the handle body are detachably connected. After the catheter is used, the handle seat is only required to be detached and discarded together with the catheter. The limiting block is preferably in a triangular prism shape, and the inclined plane of the limiting block faces the handle seat, so that the handle seat and the handle body can be conveniently inserted and fixed.

Further, in order to increase the stability of the connection between the handle seat and the handle body, the limiting plate 20 is fixed on the inner wall of the handle body through the supporting plate 28, and meanwhile, a channel 29 matched with one end of the handle seat is arranged on the end surface of the supporting plate 28. When the limiting block is inserted into the limiting hole, one end of the handle seat extends into the channel 29, so that the stability of the handle seat and the handle body is enhanced.

Further, the other end of the handle body 11 is provided with a fixing shell 12, and one end of the fixing shell 12 is inserted into an opening at the other end of the handle body 11 and fixed. A male connector 13 is disposed in the stationary housing 12, and preferably, the male connector 13 is fixed at the center of the stationary housing 12 and is axially disposed. The cable 3 is connected with a male connector 13, a female connector 14 matched with the male connector 13 is arranged on the connecting connector and corresponds to the female connector 14, and the female connector 14 is connected with the microwave generator through a cable.

Further, the connection joint includes a connection shell 15, and the female joint 14 is provided on an end surface of the connection shell 15 corresponding to the stationary shell 12. The female joint 14 is provided on an end face of the connection housing, and is disposed axially along the stationary housing. The fixed shell 12 and the connecting shell 15 are fixedly inserted, namely one end of the connecting shell is inserted into the fixed shell, and the inserting column is inserted into the conductive column, so that power supply of the LED lamp is realized.

Furthermore, insert the post 6 and be provided with two, fix respectively on the terminal surface of set casing 12, its one end stretches out outside set casing 12, two one ends that insert the post 6 and be located the set casing respectively with battery 4 and LED lamp 5 electric connection, it is provided with two to lead electrical pillar 7, sets up respectively on the terminal surface of connect the shell 15 to with inserting post 6 one-to-one, pass through wire electric connection between two and leading electrical pillar 7. Specifically, the method comprises the following steps: two lamp wires are arranged on the LED lamp, wherein one lamp wire is connected with the plug post, and the other lamp wire is connected with the battery; and then one lead is connected with the battery, and the other end of the lead is connected with the other plug post. When the two inserting columns are inserted into the guide column at the same time, the battery supplies power to the LED lamp, and the LED lamp is on. In the whole process, the LED lamp does not need an external power supply.

Further, a fixing cylinder 16 is arranged in the handle body 11, the fixing cylinder 16 is axially arranged along the handle body 11, one end of the needle tube 2 penetrates through the handle seat 10 and is fixedly connected with the fixing cylinder 16, a sleeve 17 is inserted into the other end of the fixing cylinder 16, namely, one end of the sleeve is inserted into the fixing cylinder 16, the other end of the sleeve 17 is fixed on the fixing shell 12, the male connector 13 is located in the sleeve 17 and is fixed, and the cable 3 penetrates through the fixing cylinder 16 and the sleeve 17 and is connected with the male connector 13.

Further, the battery 4 is disposed in the handle body 11, and a through hole for passing a lamp wire is disposed on a side wall of the fixing cylinder 16. The LED lamp 5 is positioned in the reinforcing tube 9, and when the LED lamp is on, the position of the needle head can be clearly indicated, so that the focus of a patient can be accurately treated.

Furthermore, one end of the needle tube 2 extends into the handle seat 10 and is fixed on the inner wall of the handle seat 10 through a fixing strip 22, and the fixing strip is arranged on the inner wall close to the opening of the handle seat corresponding to the handle body and mainly used for fixing the end part of the needle tube extending into the handle seat. The quantity of fixed strip sets up according to actual need, and this embodiment mainly is provided with two, and the symmetry sets up. One end of the needle tube 2, which is positioned in the handle seat 10, is fixedly inserted into the fixed cylinder 16, the lamp wire of the LED lamp 5 penetrates through the needle tube 2 and is fixed in the needle tube 2, the fixed cylinder 16 is internally provided with a lead wire connected with the battery 4, and after the needle tube 2 and the fixed cylinder 16 are fixed, the lamp wire of the LED lamp 5 is communicated with the lead wire.

Furthermore, a fixing sleeve 23 is arranged at one end of the needle tube 2 extending into the handle seat 10, the fixing sleeve 23 is arranged to increase the hardness of the needle tube 2, a fixing pad 24 is arranged in the fixing sleeve 23, the fixing pad 24 is made of an insulating material, a guide pillar 25 is embedded in the fixing pad 24, and the guide pillar 25 is made of a conducting wire material. The guide posts 25 are connected to the lamp wires and the cables 3, the guide posts are connected to the lamp wires and the cables, respectively, and the number of the guide posts is determined according to the number of the lamp wires and the cables. Meanwhile, a supporting pad 26 is fixed on the inner wall of one end of the fixing cylinder 16 fixed with the needle tube 2, a conductive sleeve 27 matched with the guide pillar 25 is embedded in the supporting pad 26, and a lead connected with a battery and an insertion pillar is connected with the conductive sleeve 27. The conductive sleeve is made of conductive materials, and the conductive sleeve corresponds to the guide posts one by one. The conductive sleeve is provided with a groove for inserting the guide post, so that the battery is communicated with the LED lamp. When the needle tubing inserted into the fixed cylinder, the end of the needle tubing was abutted with the supporting pad, and the guide pillar was inserted into the corresponding conductive sleeve respectively, thereby realizing the insertion fixation of the needle tubing and the fixed cylinder.

Furthermore, in order to increase the connection stability of the needle tube and the fixed cylinder, a limiting strip 30 is arranged on the outer wall of the needle tube extending into the fixed cylinder, and a limiting groove adaptive to the limiting strip is arranged on the inner wall of the fixed cylinder 16, so that the needle tube can be accurately inserted into the fixed cylinder, and the guide post can be inserted into the conductive sleeve.

Furthermore, the end faces of the conductive columns 7 corresponding to the insertion columns 6 are provided with grooves 18 matched with the insertion columns 6, so that when the insertion columns 6 are inserted into the grooves 18, the insertion columns 6 are in contact with the conductive columns 7.

As another embodiment, the lamp wire of the LED lamp can be directly electrically connected with the battery, and when the handle seat and the needle tube part are discarded, the LED lamp only needs to be drawn out of the needle tube. When the LED lamp is used again, the LED lamp is only required to be inserted into the needle tube from one end of the new needle tube. The specific mode can be set according to actual needs.

When the LED lamp fixing device is used, only the limiting plate needs to be inserted into the handle seat, the limiting block is located in the limiting hole, meanwhile, the needle tube is inserted into the fixing cylinder, the limiting strip is arranged in the limiting groove, and the guide pillar is inserted into the conductive sleeve, so that the LED lamp is communicated with the conductive sleeve in the fixing cylinder. Then, insert the one end of connecting the shell in the fixed shell, insert the post simultaneously and insert in leading electrical pillar to realize that the LED lamp supplies power, male joint and female joint are connected and are realized that the syringe needle carries out corresponding treatment to the focus position.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, 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.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims (10)

1. The utility model provides a detachable microwave ablation catheter, includes syringe needle (1), needle tubing (2) be connected with syringe needle (1) and set up in needle tubing (2) and cable (3) be connected with syringe needle (1), its characterized in that: the LED lamp is characterized in that the other end of the needle tube (2) is connected with a handle, the end part of the handle is detachably connected with a connecting joint, a battery (4) is arranged in the handle, an LED lamp (5) is arranged in the needle tube (2), the LED lamp (5) is electrically connected with the battery (4), an inserting column (6) which is respectively electrically connected with the battery (4) and the LED lamp (5) is arranged in the handle, a conductive column (7) which is matched with the inserting column (6) is arranged in the connecting joint, and after the handle is connected with the connecting joint, the LED lamp (5) is electrified;

the handle includes handle seat (10) and can dismantle handle body (11) of being connected with handle seat (10), be provided with spacing hole (19) on the lateral wall of the junction of handle seat (10) and handle body (11), the one end of handle body (11) is provided with limiting plate (20), be provided with stopper (21) that correspond and the adaptation with spacing hole (19) on the outer wall of limiting plate (20).

2. The detachable microwave ablation catheter of claim 1, wherein: one end of the needle head (1) is provided with an insulating sleeve (8), the other end of the insulating sleeve (8) is provided with a reinforcing tube (9), and the other end of the reinforcing tube (9) is connected with the needle tube (2).

3. The detachable microwave ablation catheter of claim 1, wherein: the other end of handle body (11) is provided with set casing (12), be provided with male joint (13) in set casing (12), cable (3) are connected with male joint (13), be provided with female joint (14) with male joint (13) adaptation on the connection joint to correspond the setting with female joint (14), microwave generator is connected through the cable in female joint (14).

4. A detachable microwave ablation catheter in accordance with claim 3, wherein: the connecting joint comprises a connecting shell (15), the female joint (14) is arranged on the corresponding end face of the connecting shell (15) and the fixed shell (12), and the fixed shell (12) and the connecting shell (15) are fixedly connected in an inserting mode.

5. The detachable microwave ablation catheter according to claim 4, wherein: insert post (6) and be provided with two, fix respectively on set casing (12), and stretch out outside set casing (12), two insert post (6) respectively with battery (4) and LED lamp (5) electric connection, it is provided with two to lead electrical pillar (7), sets up respectively on the terminal surface of connecting shell (15), and with insert post (6) one-to-one, two lead electrical connection between electrical pillar (7).

6. The detachable microwave ablation catheter according to claim 3, wherein: the improved handle is characterized in that a fixing cylinder (16) is arranged in the handle body (11), one end of the needle tube (2) penetrates through the handle seat (10) and is connected with the fixing cylinder (16), the other end of the fixing cylinder (16) is connected with a sleeve (17), the other end of the sleeve (17) is fixed on a fixing shell (12), the male connector (13) is located in the sleeve (17), and the cable (3) penetrates through the fixing cylinder (16) and the sleeve (17) and is connected with the male connector (13).

7. The detachable microwave ablation catheter according to claim 3, wherein: the battery (4) is arranged in the handle body (11), and the LED lamp (5) is positioned in the reinforcing tube (9).

8. The detachable microwave ablation catheter according to claim 6, wherein: the one end of needle tubing (2) stretches into in handle seat (10) to fix on the inner wall of handle seat (10) through fixed strip (22), it is fixed to peg graft between one end that needle tubing (2) are located handle seat (10) and a fixed section of thick bamboo (16), the lamp line of LED lamp (5) passes needle tubing (2) and fixes in needle tubing (2), be provided with the wire of being connected with battery (4) in a fixed section of thick bamboo (16), work as needle tubing (2) and a fixed back of (16), the lamp line and the wire intercommunication of LED lamp (5).

9. The detachable microwave ablation catheter according to claim 4, wherein: the utility model discloses a fixed needle cannula (2) is fixed including needle tubing (2) and needle tubing (2), be provided with fixed cover (23) in the one end that stretches into in handle seat (10), be provided with fixed bolster (24) in fixed cover (23), the embedding is provided with guide pillar (25) on fixed bolster (24), guide pillar (25) are connected with lamp line and cable (3), be fixed with supporting pad (26) on the inner wall of fixed one end of solid fixed cylinder (16) and needle tubing (2), the embedding is provided with electrically conductive cover (27) with guide pillar (25) adaptation on supporting pad (26), the wire is connected with electrically conductive cover (27).

10. The detachable microwave ablation catheter of claim 1, wherein: the end faces, corresponding to the conductive columns (7) and the insertion columns (6), are provided with grooves (18) matched with the insertion columns (6), so that when the insertion columns (6) are inserted into the grooves (18), the insertion columns (6) are in contact with the conductive columns (7).

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