CN210185688U

CN210185688U - Coaxial combination needle for puncture and microwave ablation combined treatment

Info

Publication number: CN210185688U
Application number: CN201920760183.5U
Authority: CN
Inventors: Haiqing Li; 李海青
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-03-27
Anticipated expiration: 2029-05-24

Abstract

The utility model discloses a coaxial combination needle for puncture and microwave ablation combined treatment, including pjncture needle, biopsy needle, microwave ablation needle, the pjncture needle includes puncture needle tubing and puncture needle core, puncture needle tubing is hollow structure, puncture needle core sliding connection is in puncture needle tubing, puncture needle tubing's one end is the needle point, puncture needle tubing and puncture needle core's the other end fixedly connected with needle tube seat and needle core seat respectively, still include guide sleeve, guide sleeve includes body and body seat, the body is hollow structure, the one end of body is the toper setting, the other end intercommunication of body is on the body seat; the length of the puncture needle is greater than that of the guide sleeve, and the length of the biopsy needle is greater than that of the puncture needle; the length of the microwave ablation needle is larger than that of the guide sleeve. The utility model discloses can improve the accuracy and the stability of aspiration biopsy and microwave ablation, reduce the damage to human tissue, reduce the operation risk.

Description

Coaxial combination needle for puncture and microwave ablation combined treatment

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a coaxial combination needle that is used for puncture and microwave ablation to unite treatment.

Background

Microwave ablation of tumors is a high and new technology starting to appear in the 70 s of the 20 th century, and has rapidly developed into a main mode in clinical tumor treatment by the beginning of the 21 st century, namely in-situ tumor inactivation under modern image guidance. The treatment technology has the obvious advantages of minimal invasion, accuracy, high efficiency and small toxic and side effects. Clinically, the traditional Chinese medicine preparation not only overcomes the defects of large excision wound and high risk in the tumor surgical operation, but also overcomes the defects of poor specificity and large toxic and side effects in chemotherapy in the medical oncology, so that the traditional Chinese medicine preparation is widely valued and popular by doctors and patients.

When the lung tumor is subjected to microwave ablation, a microwave ablation needle with the thickness of only about 1mm is accurately punctured to a tumor part under the guidance of CT, the inside of the tumor is instantly controlled to reach the high temperature of more than 100 degrees through an external machine, so that the tumor tissue in an ablation area is subjected to coagulation necrosis, the effect of killing the tumor at the high temperature is achieved, and during puncturing, a skilled doctor needs to puncture according to experience and repeatedly position under the guidance of CT, so that the tumor part can be punctured accurately.

In clinical treatment, a treatment scheme of determining pathology by needle biopsy and synchronously ablating primary focus by microwave is often adopted, and under the guidance of CT, the focus is firstly subjected to needle biopsy and then subjected to microwave ablation. Needle biopsy is a process of obtaining a tissue specimen of a lesion by inserting a biopsy needle into the tissue of the lesion and then cutting the tissue. In the prior art, two different sets of needles are used for needle biopsy and microwave ablation, operation needs to be performed respectively, two times of puncture is performed on the treatment part of a patient, the operation wound is large, the risk after operation is increased, in addition, the microwave ablation needle is slender and limited in mechanical strength, the microwave ablation needle can be bent or disconnected and deviates from the tumor part in the puncture process, the operation requirement on a doctor is very high, and if the operation is not proper, the consequences of bleeding, operation time prolonging, damage to peripheral tissues or organs of an affected part and the like can be caused.

Disclosure of Invention

The utility model discloses a solve the weak point among the prior art, provide a coaxial combination needle for puncture and microwave ablation combined therapy, can improve accuracy and stability that aspiration biopsy and microwave ablation were ablated, reduce the damage to human tissue, reduce the operation risk.

The utility model adopts a technical scheme for solving the above problems, a coaxial combination needle for puncture and microwave ablation combined treatment is provided, including a puncture needle, a biopsy needle and a microwave ablation needle, wherein the puncture needle comprises a puncture needle tube and a puncture needle core, the puncture needle tube is of a hollow structure, the puncture needle core is slidably connected in the puncture needle tube, one end of the puncture needle tube is a needle point, the other ends of the puncture needle tube and the puncture needle core are respectively and fixedly connected with a needle tube seat and a needle core seat, the coaxial combination needle further comprises a guide sleeve, the guide sleeve comprises a tube body and a tube body seat, the tube body is of a hollow structure, one end of the tube body is in a conical arrangement, and the other end of the tube body is communicated; the length of the puncture needle is greater than that of the guide sleeve, and the length of the biopsy needle is greater than that of the puncture needle; the length of the microwave ablation needle is larger than that of the guide sleeve.

During puncture, the puncture needle extends into the guide sleeve and is in sliding connection with the tube body, the puncture needle is tightly attached to the inner wall of the tube body, after the puncture is finished, the puncture needle core of the puncture needle is extracted, the biopsy needle extends into the puncture needle tube and is in sliding connection with the puncture needle tube, and the biopsy needle is tightly attached to the inner wall of the puncture needle tube; when the microwave ablation is carried out, the biopsy needle and the puncture needle tube are drawn out, and the microwave ablation needle extends into the guide sleeve and is connected with the tube body in a sliding manner.

Preferably, the pipe body seat is of a three-way structure, a first interface of the pipe body seat is communicated with the pipe body of the guide sleeve, a movable sealing plug is installed at a second interface of the pipe body seat, and a hose is connected to a third interface of the pipe body seat.

Preferably, the movable sealing plug is made of rubber, and a cross-shaped seam is formed in the center of the movable sealing plug.

Preferably, the hose is connected with a tee, and the tee is provided with a three-way valve.

Preferably, the guiding sleeve is made of polytetrafluoroethylene.

Preferably, the puncture needle and the biopsy needle are respectively provided with scale marks, and the tube body of the guide sleeve is made of transparent materials.

Preferably, the puncture needle and the biopsy needle are respectively sleeved with protective sleeves.

Preferably, the utility model discloses still include the needle utensil box, be provided with respectively with guide sleeve, pjncture needle, biopsy needle and the microwave ablation needle corresponding position of placing in the needle utensil box.

Adopt above-mentioned technical scheme, the utility model has the advantages of it is following:

the utility model discloses the needle utensil integration that uses in with aspiration biopsy and the microwave ablation is as an organic whole, carries out twice puncture to patient's treatment position when can avoiding the operation, reduces the operation wound, reduces the postoperative risk.

Meanwhile, when the microwave ablation needle penetrates into the focal tissue, the microwave ablation needle is supported and guided by the guide sleeve, so that the phenomena of bending or breaking, deviation from a tumor part and the like in the penetrating process can be avoided, the operation requirements on doctors are reduced, the operation risk is reduced, and the success rate of the operation is high.

To sum up, the utility model provides high accuracy and stability that puncture biopsy, microwave ablation, effectively avoid the microwave ablation needle to take place crooked or rupture at the puncture in-process, reduce the damage to human tissue simultaneously, reduce the operation risk.

Drawings

FIG. 1 is a schematic structural diagram of one embodiment of the present invention;

fig. 2 is a schematic top view of the movable sealing plug of the present invention;

fig. 3 is a schematic diagram of the relative position of the present invention during puncturing;

FIG. 4 is an enlarged partial schematic view at A of FIG. 3;

fig. 5 is a schematic diagram of the relative position of the present invention during biopsy;

fig. 6 is a schematic diagram of the relative position of the present invention during microwave ablation.

Reference numerals: 1. the device comprises a guide sleeve, 11, a pipe body, 12, a pipe body seat, 13, a movable sealing plug, 14, a hose, 15, a cross seam, 16, a tee joint, 17 and a three-way valve;

2. a puncture needle 21, a puncture needle tube 22, a puncture needle core 23, a needle tube seat 24 and a needle core seat;

3. biopsy needle, 4, microwave ablation needle, 5, protective sleeve, 6 and needle kit box.

Detailed Description

As shown in fig. 1 to fig. 6, the utility model discloses a coaxial combination needle for puncture and microwave ablation combined therapy, including pjncture needle 2, biopsy needle 3, microwave ablation needle 4, biopsy needle 3 can adopt the semi-automatic biopsy needle 3 of TSK, pjncture needle 2 includes puncture needle tube 21 and puncture needle core 22, puncture needle tube 21 is hollow structure, puncture needle core 22 sliding connection is in puncture needle tube 21, the one end of puncture needle tube 21 is the needle point, the other end fixedly connected with needle tube seat 23 and needle core seat 24 respectively of puncture needle tube 21 and puncture needle core 22, still include guide sleeve 1, guide sleeve 1 includes body 11 and body seat 12, body 11 is hollow structure, the one end of body 11 is the toper setting, as shown in fig. 4, the transition is gentle between pjncture needle 2 and the body 11, reducible puncture resistance when the puncture, reduce patient's damage and pain. The other end of the tube body 11 is communicated with the tube body seat 12; the length of the puncture needle 2 is larger than that of the guide sleeve 1, and the length of the biopsy needle 3 is larger than that of the puncture needle 2; the length of the microwave ablation needle 4 is greater than the length of the introducer sheath 1.

During puncture, the puncture needle 2 extends into the guide sleeve 1 and is connected with the tube body 11 in a sliding way, the puncture needle 2 is tightly attached to the inner wall of the tube body 11, after the puncture is finished, the puncture needle core 22 of the puncture needle 2 is drawn out, the biopsy needle 3 extends into the puncture needle tube 21 and is connected with the puncture needle tube 21 in a sliding way, and the biopsy needle 3 is tightly attached to the inner wall of the puncture needle tube 21; when in microwave ablation, the biopsy needle 3 and the puncture needle tube 21 are drawn out, and the microwave ablation needle 4 extends into the guide sleeve 1 and is connected with the tube body 11 in a sliding way.

As one of the embodiments of the utility model, body seat 12 is the tee bend structure, and the first interface of body seat 12 and guide sleeve 1's body 11 intercommunication, movable sealing plug 13 is installed to the second kneck of body seat 12, and the third kneck of body seat 12 is connected with hose 14. The movable sealing plug 13 is made of rubber, and a cross-shaped seam 15 is formed in the center of the movable sealing plug 13. The cross seam 15 divides the center of the movable sealing plug 13 into four fan-shaped pieces, when the puncture needle 2 or the microwave ablation needle 4 extends into or is drawn out of the guide sleeve 1 from the movable sealing plug 13, the puncture needle passes through the cross seam 15 of the movable sealing plug 13, the four fan-shaped pieces can be tightly attached to the outer wall of the puncture needle 2 or the microwave ablation needle 4, and the second interface of the tube body seat 12 can be in a sealed state.

The hose 14 is connected with a tee 16, and the tee 16 is provided with a three-way valve 17. Can be used for injection of medicine or body fluid such as blood exuded from wound.

As one embodiment of the present invention, the guiding sleeve 1 is made of teflon. The polytetrafluoroethylene has the characteristic of high temperature resistance, has extremely low friction coefficient and is convenient for passing through the puncture needle 2 or the microwave ablation needle 4.

As one embodiment of the present invention, the puncture needle 2 and the biopsy needle 3 are respectively provided with scale marks, and the tube body 11 of the guide sleeve 1 is made of transparent material, such as transparent polytetrafluoroethylene. So that the medical staff can observe the puncture depth conveniently.

As one embodiment of the utility model, the puncture needle 2 and the biopsy needle 3 are respectively sleeved with a protective sleeve 5. Since the ends of the puncture needle 2 and the biopsy needle 3 are sharp, the protective sleeve 5 can prevent accidental injury when the puncture needle 2 or the biopsy needle 3 is taken or placed. The T-shaped rubber sleeve is sleeved on the puncture needle tube 21 of the puncture needle 2, so that the protection sleeve 5 is conveniently sleeved on the puncture needle 2, and the protection sleeve 5 is prevented from being too thick.

As one of the embodiments of the utility model, still include the needle ware box 6, be provided with in the needle ware box 6 respectively with the corresponding position of placing of guide sleeve 1, pjncture needle 2, biopsy needle 3 and microwave ablation needle 4, place the needle ware in the needle ware box 6, can prevent in disorder, omit the needle ware, save medical personnel's instrument preparation time.

When the microwave ablation device is used specifically, firstly, puncture biopsy is carried out, the puncture needle 2 extends into the guide sleeve 1 for puncture operation, after puncture is finished, the puncture needle core 22 of the puncture needle 2 is drawn out, the guide sleeve 1 and the puncture needle tube 21 are left in place, the biopsy needle 3 extends into the puncture needle tube 21, the biopsy needle 3 is guided by the guide sleeve 1 and the puncture needle tube 21 to penetrate into focus tissues and take out tissue samples, after the tissue samples are taken out, the biopsy needle 3 is drawn out firstly, then the puncture needle tube 21 is drawn out, and the microwave ablation needle 4 penetrates into the focus tissues along the guide sleeve 1 to carry out microwave ablation treatment.

The above embodiments are not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification of the above embodiments.

Claims

1. The utility model provides a coaxial combination needle for puncture and microwave ablation joint treatment, includes pjncture needle, biopsy needle, microwave ablation needle, and the pjncture needle includes puncture needle tubing and puncture needle core, and puncture needle tubing is hollow structure, and puncture needle core sliding connection is intraductal at the pjncture needle, and puncture needle tubing's one end is the needle point, and the other end of puncture needle tubing and puncture needle core is fixedly connected with needle tube seat and needle core seat, its characterized in that respectively: the guide sleeve comprises a pipe body and a pipe body seat, the pipe body is of a hollow structure, one end of the pipe body is arranged in a conical shape, and the other end of the pipe body is communicated with the pipe body seat; the length of the puncture needle is greater than that of the guide sleeve, and the length of the biopsy needle is greater than that of the puncture needle; the length of the microwave ablation needle is greater than that of the guide sleeve;

2. The coaxial combination needle for combined puncture and microwave ablation therapy according to claim 1, characterized in that: the pipe body seat is of a three-way structure, a first connector of the pipe body seat is communicated with the pipe body of the guide sleeve, a movable sealing plug is installed at a second connector of the pipe body seat, and a hose is connected to a third connector of the pipe body seat.

3. The coaxial combination needle for combined puncture and microwave ablation therapy according to claim 2, characterized in that: the movable sealing plug is made of rubber, and a cross-shaped seam is formed in the center of the movable sealing plug.

4. The coaxial combination needle for combined puncture and microwave ablation therapy according to claim 2, characterized in that: the hose is connected with a tee joint, and the tee joint is provided with a tee valve.

5. The coaxial combination needle for combined puncture and microwave ablation therapy according to claim 1, characterized in that: the guiding sleeve is made of polytetrafluoroethylene.

6. The coaxial combination needle for combined puncture and microwave ablation therapy according to claim 1, characterized in that: the puncture needle and the biopsy needle are respectively provided with scale marks, and the tube body of the guide sleeve is made of transparent material.

7. The coaxial combination needle for combined puncture and microwave ablation therapy according to any one of claims 1 to 6, characterized in that: protective sleeves are respectively sleeved outside the puncture needle and the biopsy needle.

8. The coaxial combination needle for combined puncture and microwave ablation therapy according to claim 7, characterized in that: the needle kit is characterized by further comprising a needle kit box, wherein placement positions corresponding to the guide sleeve, the puncture needle, the biopsy needle and the microwave ablation needle are arranged in the needle kit box respectively.