CN211409349U

CN211409349U - Medical tumor microwave ablation needle

Info

Publication number: CN211409349U
Application number: CN201921199796.2U
Authority: CN
Inventors: 张炜; 计金星; 陈茂华; 李治
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-09-04
Anticipated expiration: 2029-07-26

Abstract

The utility model discloses a medical tumour microwave ablation needle, including the needle bar, the one end of needle bar is connected with the handle, and the other end of needle bar is connected with the needle point, and the inside of needle bar runs through there is microwave coaxial cable, has seted up first logical groove on the needle bar of microwave coaxial cable one side, has seted up the second on the needle bar of first logical groove one side and has led to the groove, and the one end in first logical groove is connected with first adjustment tank, and the upper end in first adjustment tank is connected with the cardboard. This medical tumour microwave ablation needle is connected with the blade at the needle point, and when the needle point pricked the tumour, the blade also pricked simultaneously in the tumour, need not extend the depth of pricking of needle point again, alleviateed patient's misery, connect the blade through the pull rod, the pull rod control trace drives the blade and turns to, realizes that the crushing scope of blade is adjustable, uses the control lever to connect the pull rod, conveniently adjusts the pull rod, and the control lever is arranged in on the outer wall of needle bar, easy to operate, and application scope is wide.

Description

Medical tumor microwave ablation needle

Technical Field

The utility model relates to an melt needle technical field, specifically be a medical tumour microwave ablation needle.

Background

The microwave ablation therapy is a therapy method which has the advantages of high efficiency, high speed, uniform heating, thorough thermal coagulation, convenient use and safety for tumor tissues, and has been widely applied to clinic for many years. Microwave energy emitted by the microwave ablation therapeutic apparatus is transmitted to the ablation needle and radiated to tumor focus tissues, the microwave enables ions and polar water molecules in the tissues to rotate, vibrate and rub with each other to generate a heat effect, and tumor cell proteins are denatured and solidified in a hot mode to cause irreversible necrosis so as to achieve the purpose of tumor treatment. However, when the existing microwave ablation needle is used for eliminating a large-volume tumor, the defects of incomplete ablation, prolonged ablation operation time, incapability of removing tumor mashing liquid after ablation and the like can be caused, and the postoperative rehabilitation of a patient is not facilitated.

Chinese patent CN208876743U discloses a microwave ablation needle, which comprises a needle head, a needle tube, a needle rod and a handle, wherein the needle head is located at one end of the needle tube, the needle head is composed of a needle point and a rotary cutter, the needle point and the rotary cutter are integrated, the rotary cutter is arranged in a hollow manner, a blade and a through hole are arranged on the cutter body, the needle rod is arranged in the needle tube, one end of the needle rod is fixedly connected with the needle point, the other end penetrates through a rotating shaft connection of the handle and a motor, a pipeline and a microwave coaxial cable are arranged between the needle rod and the needle tube, the pipeline is arranged on the inner wall of the needle tube, the microwave coaxial cable penetrates through the handle to be connected with a microwave emitter, the needle rod and the microwave coaxial cable are movably connected with the. The device can effectively solve the problems of incomplete ablation, long ablation operation time, incapability of removing tumor mashing liquid and the like of the conventional ablation needle.

Although this application has solved the problem in the background art to a certain extent, the rotary cutter in this application is installed at the rear end of needle point, during the use, needs insert more depths with the needle point, and rotary cutter just can with the tumour contact, uses inconveniently, still can increase the misery for the patient simultaneously, and rotary cutter's diameter is limited in addition, can not adjust, smashes the time longer to great tumour.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a medical tumour microwave ablation needle has the facilitate use, adjusts easily, reduces the advantage that patient wounded and painful, has solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a medical tumor microwave ablation needle comprises a needle rod, wherein one end of the needle rod is connected with a handle, the other end of the needle rod is connected with a needle point, a microwave coaxial cable penetrates through the interior of the needle rod, a first through groove is formed in the needle rod on one side of the microwave coaxial cable, a second through groove is formed in the needle rod on one side of the first through groove, one end of the first through groove is connected with a first adjusting groove, the upper end of the first adjusting groove is connected with a clamping plate, one side of the clamping plate is provided with a clamping fixing position, a control rod penetrates through the first adjusting groove, a second adjusting groove is formed in the needle point, two sides of the second adjusting groove are symmetrically connected with a movable hole, one end, close to the needle rod, of the second adjusting groove is provided with a third through groove and a fourth through groove, one end of the third through groove is communicated with one end of the first through groove, one end of the fourth through groove is communicated with, the containing groove has been seted up to the symmetry on the lateral wall of needle point, and the one end of containing groove is connected with articulated seat, and articulated on the articulated seat has connected the blade, the pull rod runs through the logical groove of third and first logical groove, and the one end hinge that the second adjustment tank was arranged in to the pull rod has connected the trace, and the one end of trace runs through the movable hole to extend to in the containing groove, the one end and the blade hinge joint of containing groove are arranged in to the trace, and the other end of trace extends to in the first adjustment tank, and with the lower extreme fixed connection of control lever, and the one end that the first adjustment tank was arranged in to the pull rod is connected with expanding spring, expanding spring's one end and the lateral wall.

Preferably, the upper end of the control rod extends to the outside of the first adjusting groove, and the control rod is clamped with the clamping fixing position.

Preferably, the quantity of the fixed position of block is no less than three, and the fixed position of block includes the arc portion of two sections indents, and the one end of the arc portion of two sections indents forms the block mouth, and the other end passes through the connection of evagination arc portion.

Preferably, the number of the accommodating grooves and the number of the linkage rods are not less than two, and the depth of the accommodating grooves is greater than the width of the blades.

Preferably, one end of the second through groove is connected with a negative pressure device.

Preferably, the diameter of the movable hole is larger than that of the linkage rod.

Compared with the prior art, the beneficial effects of the utility model are as follows:

this medical tumour microwave ablation needle, be connected with the blade at the needle point, when the tumour was pricked to the needle point, the blade was also pricked simultaneously in the tumour, the depth of pricking of needle point need not extend again, alleviate patient's misery, connect the blade through the pull rod, pull rod control trace drives the blade and turns to, it is adjustable to realize the crushing scope of blade, use the control lever to connect the pull rod, the convenience is adjusted the pull rod, the control lever is arranged in on the outer wall of needle bar, easy to operate, control lever and the block fixed position block, the quantity of block fixed position has a plurality ofly, according to the size of tumour, can choose for use different fixed positions, moreover, the steam generator is simple in operation, and wide application.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a partial structure view of the needle bar of the present invention;

FIG. 3 is a view of the structure of the needle tip of the present invention;

FIG. 4 is a diagram showing the working state of the needle tip of the present invention;

fig. 5 is an enlarged view of the fastening position of the present invention.

In the figure: 1. a needle bar; 11. a handle; 12. a microwave coaxial cable; 13. a first through groove; 14. a second through groove; 15. a first regulating groove; 16. clamping a plate; 161. clamping and fixing the position; 162. an inner concave arc portion; 163. a clamping opening; 164. a convex arc part; 2. a needle tip; 21. a second regulating groove; 22. a movable hole; 23. a third through groove; 24. a fourth through groove; 25. a containing groove; 26. a hinged seat; 27. a blade; 3. a control lever; 4. a pull rod; 41. a linkage rod; 42. a telescoping spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a medical microwave tumor ablation needle comprises a needle rod 1, one end of the needle rod 1 is connected with a handle 11, the other end of the needle rod 1 is connected with a needle point 2, a microwave coaxial cable 12 penetrates through the inside of the needle rod 1, the needle rod 1 on one side of the microwave coaxial cable 12 is provided with a first through groove 13, the needle rod 1 on one side of the first through groove 13 is provided with a second through groove 14, one end of the second through groove 14 is connected with a negative pressure device, the negative pressure device can select a connecting structure of a motor and a piston, the negative pressure device sucks air into the second through groove 14 to suck out crushed tumor, one end of the first through groove 13 is connected with a first adjusting groove 15, the upper end of the first adjusting groove 15 is connected with a clamping plate 16, one side of the clamping plate 16 is provided with a clamping fixing position 161, a control rod 3 penetrates through the first adjusting groove 15, and the upper end of the control rod, and the control rod 3 is clamped with the clamping fixing position 161, the clamping fixing position 161 is used for fixing the position of the control rod 3, the number of the clamping fixing positions 161 is not less than three, the clamping fixing position 161 comprises two sections of concave arc parts 162, one end of each section of concave arc part 162 forms a clamping opening 163, the other end of each section of concave arc part is connected with one end of each convex arc part 164 through a convex arc part, the clamping fixing positions 161 cannot easily fall off after being clamped with the control rod 3, and different clamping fixing positions 161 are used for controlling the position of the pull rod 4, so that the rotation angle of the blade.

Referring to fig. 3-5, a second adjusting groove 21 is formed inside the needle tip 2, two sides of the second adjusting groove 21 are symmetrically connected with a movable hole 22, one end of the second adjusting groove 21 close to the needle bar 1 is provided with a third through groove 23 and a fourth through groove 24, one end of the third through groove 23 is communicated with one end of the first through groove 13, one end of the fourth through groove 24 is communicated with one end of the second through groove 14, the inside of the second adjusting groove 21 is connected with a pull rod 4, the side wall of the needle tip 2 is symmetrically provided with accommodating grooves 25, one end of the accommodating groove 25 is connected with a hinged seat 26, the hinged seat 26 is hinged with a blade 27, the number of the accommodating grooves 25 and the number of the connecting rods 41 are not less than two, the more blades 27 are mounted, the better crushing effect is achieved, the depth of the accommodating groove 25 is greater than the width of the blade 27, the blade 27 can be completely placed in the accommodating groove 25, and when, the pull rod 4 penetrates through the third through groove 23 and the first through groove 13, one end of the pull rod 4, which is arranged in the second adjusting groove 21, is hinged to the linkage rod 41, one end of the linkage rod 41 penetrates through the movable hole 22 and extends into the accommodating groove 25, the diameter of the movable hole 22 is larger than that of the linkage rod 41, the movable hole 22 provides a certain movable range for the linkage rod 41, meanwhile, the movable hole 22 can adsorb crushed tumors, one end of the linkage rod 41, which is arranged in the accommodating groove 25, is hinged to the blade 27, the other end of the linkage rod 41 extends into the first adjusting groove 15 and is fixedly connected with the lower end of the control rod 3, one end of the pull rod 4, which is arranged in the first adjusting groove 15, is connected with the extension spring 42, and one end of the extension spring 42 is fixedly connected with the side wall of the first adjusting groove.

The working process is as follows: before operation, the blade 27 is arranged in the containing groove 25 to prevent a patient from being scratched, during operation, the needle tip 2 is inserted into a position to be ablated on the tumor, the opening angle of the blade 27 is adjusted according to the size of the tumor, during adjustment, the control rod 3 is separated from the clamping fixing position 161 manually, the control rod 3 is pushed to move forwards, the pull rod 4 pushes the linkage rod 41 to move towards the front end of the needle tip 2, the linkage rod 41 pushes the blade 27 to rotate for a certain angle, one end of the blade 27 extends out of the containing groove 25, one end of the needle rod 1 is fixedly connected with the needle tip 2, the other end of the needle rod penetrates through the rotating shaft of the handle 11 and the motor, the needle rod 1 is driven to rotate by the motor, the purpose of driving the blade 27 to rotate is further achieved, tumor tissues are smashed, air is sucked into the second through the outer negative.

In summary, the following steps: this medical tumour microwave ablation needle, be connected with blade 27 at needle point 2, when the tumour is pricked into to needle point 2, blade 27 is also pricked simultaneously in the tumour, the degree of depth of pricking of needle point 2 need not extend again, alleviate patient's misery, connect blade 27 through pull rod 4, pull rod 4 control trace 41 drives blade 27 and turns to, it is adjustable to realize the crushing scope of blade 27, use control lever 3 to connect pull rod 4, the convenience is adjusted pull rod 4, control lever 3 is arranged in on the outer wall of needle bar 1, easy to operate, control lever 3 and the fixed 161 block of block, the fixed 161 quantity of block has a plurality ofly, according to the size of tumour, can choose different fixed positions for use, and the operation is simple, and the application scope is wide.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A medical tumour microwave ablation needle, includes needle bar (1), its characterized in that: one end of the needle rod (1) is connected with a handle (11), the other end of the needle rod (1) is connected with a needle point (2), a microwave coaxial cable (12) penetrates through the interior of the needle rod (1), a first through groove (13) is formed in the needle rod (1) on one side of the microwave coaxial cable (12), a second through groove (14) is formed in the needle rod (1) on one side of the first through groove (13), one end of the first through groove (13) is connected with a first adjusting groove (15), the upper end of the first adjusting groove (15) is connected with a clamping plate (16), one side of the clamping plate (16) is provided with a clamping fixing position (161), a control rod (3) penetrates through the first adjusting groove (15), a second adjusting groove (21) is formed in the interior of the needle point (2), movable holes (22) are symmetrically connected to two sides of the second adjusting groove (21), a third through groove (23) and a fourth through groove (24) are formed in one end, close to the needle rod (, one end of the third through groove (23) is communicated with one end of the first through groove (13), one end of the fourth through groove (24) is communicated with one end of the second through groove (14), the inside of the second adjusting groove (21) is connected with the pull rod (4), the side wall of the needle point (2) is symmetrically provided with accommodating grooves (25), one end of the accommodating groove (25) is connected with a hinged seat (26), the hinged seat (26) is hinged with a blade (27), the pull rod (4) penetrates through the third through groove (23) and the first through groove (13), the pull rod (4) is arranged at one end of the second adjusting groove (21) and is hinged with a linkage rod (41), one end of the linkage rod (41) penetrates through the movable hole (22) and extends into the accommodating groove (25), one end of the accommodating groove (25) and is hinged with the blade (27) are arranged by the linkage rod (41), and the other end of the linkage rod (41) extends into the first adjusting groove (15), and the lower end of the control rod (3) is fixedly connected, one end of the pull rod (4) arranged in the first adjusting groove (15) is connected with an expansion spring (42), and one end of the expansion spring (42) is fixedly connected with the side wall of the first adjusting groove (15).

2. The medical microwave tumor ablation needle according to claim 1, characterized in that: the upper end of the control rod (3) extends to the outside of the first adjusting groove (15), and the control rod (3) is clamped with the clamping fixing position (161).

3. The medical microwave tumor ablation needle according to claim 1, characterized in that: the quantity of the fixed position of block (161) is no less than three, and the fixed position of block (161) includes two sections concave arc portion (162), and the one end of two sections concave arc portion (162) forms joint mouth (163), and the other end passes through evagination arc portion (164) and connects.

4. The medical microwave tumor ablation needle according to claim 1, characterized in that: the number of the accommodating grooves (25) and the number of the linkage rods (41) are not less than two, and the depth of the accommodating grooves (25) is greater than the width of the blades (27).

5. The medical microwave tumor ablation needle according to claim 1, characterized in that: one end of the second through groove (14) is connected with a negative pressure device.

6. The medical microwave tumor ablation needle according to claim 1, characterized in that: the diameter of the movable hole (22) is larger than that of the linkage rod (41).