CN2917560Y

CN2917560Y - Microwave puncture needle

Info

Publication number: CN2917560Y
Application number: CN 200620073205
Authority: CN
Inventors: 舒宁
Original assignee: FUZHONG INFORMATION INDUSTRIAL GROUP Co Ltd NANJING
Current assignee: Fu Group Holdings Ltd; Fuzhong Group Co ltd
Priority date: 2006-05-30
Filing date: 2006-05-30
Publication date: 2007-07-04
Anticipated expiration: 2016-05-30

Abstract

The utility model relates to a microwave puncture needle, which pertains to the technical field of medial equipment components. The microwave puncture needle comprises a needlepoint, a needle bar and a needle grip that are made into one entity, wherein a microwave antenna is arranged in the needlepoint and the microwave antenna is connected with the coaxial cable that is arranged in the needle bar and the needle grip and a hollow cavity is provided in the needle bar and an inlet and an outlet interfaces of the liquid cold medium are arranged on the needle grip. Two capillaries are arranged in the needle grip, one end of the two capillaries is communicated with the internal end of the inlet interface, while the other end is communicated with the hollow cavity of the needle bar and the outline of the needle grip is in a flat shape and the inlet and outlet interfaces are respectively arranged at the two sides of the needle grip width. The microwave puncture needle in the utility model is more convenient for using the microwave puncture needle and can prevent the cells subject to pathological changes from shifting along with the microwave puncture needle and at the same time can increase the precision of measuring the instantaneous temperature of the tumor interlacing.

Description

The microwave puncture needle

Technical field

This utility model relates to a kind of tumor-treatment instrument parts, and especially a kind of puncture needle that adopts micro-wave therapeutic tumor instrument belongs to armarium component technology field.

Background technology

In recent years, China's tumor incidence raises year by year.Many malignant tumor patients have been late periods when finding because of a variety of causes, thereby lose the best opportunity that obtains surgical radical treatment." can not operate on late period ", " position is bad, should not perform the operation " hears like this, tumor patient and family members are just as being to have heard last pronouncing.On tumor treatment, the past, people often thought, can not operate on just meaning death.Actually this is not so, along with medical science applied development, the means of treatment malignant tumor are progressively moved towards variation, and the cold circulation microwave cutter is one by one as a kind of minimally-invasive treatment means of just having risen in the world, do not operate on and can kill tumor yet, obtained definite curative effect clinically.

The cold circulation microwave cutter is not cutter in fact, and it is a puncture needle that comprises the energy emission antenna.Concrete way is: the doctor finds liver with imaging equipment, and the tumor of the inside such as lung is located under the guiding of imaging equipment then, microwave coagulation treatment (puncture needle) is directly punctured insert in the tumor.Start microwave, the energy of microwave is transformed into the heat energy effect, the tumor focus zone will very fast intensification, physiology and pathological reaction appear, lump will " be baked " dead (melting) when temperature is raised to the 45 degree left and right sides, and little to the damage of normal structure simultaneously, patient's misery is little in the therapeutic process.

Publication number is that the Chinese patent of CN1593687 discloses a kind of microwave tumor coagulating treatment instrument, and wherein disclosed puncture needle and microwave antenna are integrated, and form cooling water circulation structure at the pin internal cavity, are provided with hygrosensor spare in the puncture needle.Yet the puncture needle of this patent disclosure also has the following disadvantages: 1, the pin of puncture needle is profile cylindrical substantially, is unfavorable for the gripping in the practical operation; 2, the easy and lesion tissue adhesion of the shank of puncture needle causes tumor cell to shift with shank; 3, the temperature probe certainty of measurement is low in the puncture needle.

The utility model content

Primary technical problem to be solved in the utility model is: propose a kind of microwave puncture needle, the pin handle of this microwave puncture needle is convenient to grip, thus more convenient use operation.

Further technical problem to be solved in the utility model is: propose a kind of microwave puncture needle, the shank surface-coated of this microwave puncture needle can be avoided lesion tissue and shank adhesion after handling.

To be solved in the utility model more further technical problem be: propose a kind of microwave puncture needle, be provided with the high precision measuring temperature probe in this microwave puncture needle, be more conducive to the heat temperature control of process of treatment.

The technical solution of the utility model is: a kind of microwave puncture needle, comprise the needle point that is connected as a single entity, shank and pin handle, wherein in the needle point microwave antenna is housed, microwave antenna is connected with coaxial cable in being loaded on pin handle and shank, be shaped on cavity in the shank, pin is being provided with advancing of liquid cold medium, outgoing interface, the inner of outgoing interface is communicated with cavity, two capillaries have been inserted in the cavity, one end of two capillaries is communicated with the inner of accessing port, and the other end is communicated with the shank internal cavity, and described pin is profile a flat, describedly advances, outgoing interface is separately positioned on pin the both sides of width.In case of necessity, be shaped on the annular knurl stricture of vagina at least one surface of described pin handle.

During operation, what gripping flat pin handle can be handy punctures, very convenient.Be shaped on the annular knurl stricture of vagina and then can increase feel when gripping, the puncture procedure of being more convenient for.

Further technical scheme of the present utility model is: the needle point of technique scheme and shank surface-coated have teflon coating.

Further technical scheme of the present utility model is: the shank Inner Front End of technique scheme also is equipped with high-precision temperature probe, and temperature measurement accuracy reaches ± and 0.1 ℃.

In a word, microwave puncture needle of the present utility model is compared the puncture needle in the existing microwave therapy apparatus, because having improved the profile and the surface of pin handle constructs, increases anti-stick coating and set up high-precision temperature probe in shank on the shank surface, so the use of the microwave puncture needle of being more convenient for operation, and can prevent that sick cell from shifting with the microwave puncture needle, can also improve the degree of accuracy of the instantaneous temperature of measuring the neoplastic lesion interlacing point simultaneously.

Description of drawings

Below in conjunction with accompanying drawing this utility model is further described.

Fig. 1 is the overall structure sketch map of microwave puncture needle among this utility model embodiment.

Fig. 2 is microwave puncture needle needle point and a shank local structure for amplifying sketch map partly among Fig. 1.

Fig. 3 is the left view of Fig. 2.

The specific embodiment

Embodiment

The microwave puncture needle of present embodiment such as Fig. 1, Fig. 2 and shown in Figure 3 comprise that the needle point 1, shank 2 and the pin that are connected as a single entity are 3.Pin is made flat ellipse to 3, pin 3 at least the one side on be shaped on leg-of-mutton annular knurl stricture of vagina 12.Surface-coated at needle point 1 and shank 2 has teflon coating.Microwave antenna 4 is housed in needle point 1, and microwave antenna 4 rear ends are connected with coaxial cable 9.In shank 2, be shaped on ring cavity 7.Be shaped on accessing port 5, outgoing interface 6 at pin on 3, the outer end of accessing port 5 links to each other with the outer loop pump by pipe, and the inner of outgoing interface 6 is communicated with cavity 7, and the outer end is connected with discharging tube 11.Inserted two capillaries 8 in the ring cavity 7 in shank 2 and between the microwave antenna 4, an end of capillary tube 8 is connected with the inner of accessing port 5.The front end of ring cavity 7 is installed temperature probe 10 in shank 2, and the signal output part of temperature probe 10 is connected with holding wire in being located at coaxial cable 9, and the precision of these temperature probe 10 measurement temperature can reach ± and 0.1 ℃.After coaxial cable 9 was drawn 3 end from pin, respectively external microwave took place and thermometric central control device.

Adopt the microwave puncture needle of present embodiment, compare the advantage that existing microwave puncture needle should possess and be:

1, owing to improved pin and 3 profile is reached at pin is shaped on annular knurl stricture of vagina 12 on 3 surface, both increased hands and gripped pin 3 o'clock surface area, increase hands again and gripped pin 3 o'clock frictional force with the feel when increasing the hands gripping, therefore can avoid hand-held pin 3 o'clock sliding hands phenomenon, be convenient to medical personnel and carry out puncture procedure more handyly.

2, owing to the surface-coated at needle point 1 and shank 2 has teflon coating, when the microwave puncture needle inserts and extract lesion tissue, can therefore can not avoid the lesion tissue material to shift at the surface adhesion lesion tissue material of needle point 1 and shank 2 with the microwave puncture needle.

3, since shank 2 in the front end of ring cavity 7, certainty of measurement has been installed has reached ± 0.1 ℃ temperature probe 10, therefore improved the precision of measurement pathological tissues point instantaneous temperature.

Clinical verification shows, more handy and convenience when the microwave puncture needle of present embodiment is operated is not glued the focus material in using simultaneously, and in use can measure the instantaneous temperature of pathological tissues point more accurately.

The foregoing description that this utility model is not limited to illustrate as an example can have other distortion on the structure, such as the profile of pin handle also semicircle or rectangle etc., and for example pin also can be made into circle, rectangle or ellipse etc. to lip-deep annular knurl stricture of vagina.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of this utility model requirement.

Claims

1. microwave puncture needle, comprise the needle point, shank and the pin handle that are connected as a single entity, in the described needle point microwave antenna is housed, described microwave antenna is connected with coaxial cable in being loaded on pin handle and shank, be shaped on cavity in the described shank, described pin be provided with liquid cold medium into and out of interface, the inner of described outgoing interface is communicated with cavity, two capillaries have been inserted in the described cavity, one end of described two capillaries is communicated with the inner of accessing port, it is characterized in that: described pin is profile a flat, describedly is separately positioned on pin the both sides of width into and out of interface.

2. according to the described microwave puncture needle of claim 1, it is characterized in that: be shaped on the annular knurl stricture of vagina at least one surface of described pin handle.

3. according to claim 1 or 2 described microwave puncture needles, it is characterized in that: described needle point and shank surface-coated have teflon coating.

4. according to the described microwave puncture needle of claim 3, it is characterized in that: described shank Inner Front End is equipped with precision and is ± 0.1 ℃ high-precision temperature probe.

5. according to the described microwave puncture needle of claim 4, it is characterized in that: described pin is making flat elliptic.

6. according to the described microwave puncture needle of claim 5, it is characterized in that: the cold medium of the external liquid state of described capillary tube.