CN217244706U

CN217244706U - Interventional therapy device under CT guidance

Info

Publication number: CN217244706U
Application number: CN202220666528.2U
Authority: CN
Inventors: 王占奎; 徐健; 安睿; 陈治远; 吴亚萍
Original assignee: Air Force Medical University of PLA
Current assignee: Air Force Medical University of PLA
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-08-23
Anticipated expiration: 2032-03-24

Abstract

The utility model relates to the technical field of medical equipment, specific CT guide is intervene treatment device down that says so, include: the device comprises a shell, wherein the surface of the shell is provided with two guide grooves, the inner walls of the guide grooves are provided with uniformly distributed limiting holes, and the surface of the shell is provided with uniformly distributed scale marks; the carrying structure for fixing the puncture needle is arranged on the inner edge of the shell and is in sliding connection with the inner edge of the shell; through setting up the locking structure, can adjust the depth of pricking into of carrying the pjncture needle, effectively avoided traditional puncture to intervene the treatment in-process, judge the depth of pricking into through the naked eye usually, lead to pricking the condition that the depth is darker or shallower influences treatment, only need before the puncture through the extrusion press the spacing of pressing the piece contact to handheld piece, thereby the position of lock ring is adjusted to the cooperation scale mark, and then can restrict the descending height that carries the carrying structure who has the pjncture needle under the effect of lock ring.

Description

CT guided interventional therapy device

Technical Field

The utility model relates to the technical field of medical equipment, it is very much related to a CT guide intervenes treatment device down.

Background

Interventional therapy is a general term for a series of techniques of introducing specific instruments into a diseased part of a human body through natural pores or tiny wounds of the human body by using puncture needles, catheters and other interventional devices under the guidance and monitoring of digital subtraction angiography, CT, ultrasonic nuclear magnetic resonance and other imaging devices for minimally invasive therapy.

At present, in the interventional therapy process, a puncture needle needs to be used for puncturing a patient body for treatment, but puncturing of the puncture needle is generally performed according to experience of medical workers, the puncturing depth is judged and read by naked eyes, certain errors exist, the puncturing effect can be influenced when the puncture needle is punctured deeply or shallowly, and the existing requirements cannot be well met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a CT guide is intervene treatment device down in order to solve above-mentioned problem, has improved the not easily controlled problem of current puncture needle depth of penetration.

The utility model discloses a following technical scheme realizes above-mentioned purpose, a CT guide is intervene treatment device down, include: the device comprises a shell, wherein two guide grooves are formed in the surface of the shell, limiting holes are uniformly distributed in the inner wall of each guide groove, and scale marks are uniformly distributed on the surface of the shell; the carrying structure for fixing the puncture needle is arranged on the inner edge of the shell and is in sliding connection with the inner edge of the shell; and the locking structure limits the moving distance of the carrying structure, is arranged on the inner edge of the shell and is positioned below the carrying structure.

Preferably, the carrying structure comprises a connecting ring which is slidably connected to the inner edge of the shell, the fixed surface of the connecting ring is fixedly connected with two pushing blocks, the two pushing blocks are respectively slidably connected with the inner wall of the guide groove, the inner edge of the connecting ring is slidably connected with two fixing blocks which are symmetrically distributed, the inner wall of the connecting ring is rotatably connected with a bidirectional screw rod, and the inner wall of the connecting ring is fixedly connected with guide rods which are symmetrically distributed with the bidirectional screw rod.

Preferably, the one end of fixed block and the surperficial threaded connection of two-way lead screw, the other end of fixed block and the surperficial sliding connection of guide bar, the surface meshing of two-way lead screw is connected with the dwang, the other end of dwang runs through out adjacent promotion piece.

Preferably, the locking structure includes a locking ring slidably connected to the inner edge of the housing, the surface of the locking ring is fixedly connected with two hand-held blocks, and the two hand-held blocks are slidably connected to the inner walls of the two guide grooves respectively.

Preferably, the inner wall of the handheld block is slidably connected with two pressing blocks, the cross section of each pressing block is U-shaped, one end of each pressing block penetrates through the handheld block, and the other end of each pressing block penetrates through the handheld block and is fixedly connected with a limiting rod matched with the limiting hole.

Preferably, a spring is fixedly connected to the surface of the pressing block, and the other end of the spring is fixedly connected to the inner wall of the hand-held block.

The utility model has the advantages that:

1. the locking structure is arranged, so that the pricking depth of the carried puncture needle can be adjusted, the situation that the pricking depth is judged by naked eyes usually in the traditional puncture interventional treatment process, the deeper or shallower pricking depth influences the treatment effect is effectively avoided, the position of the locking ring is adjusted by only pressing the pressing block to limit the handheld block in contact before puncture, and the descending height of the carrying structure carrying the puncture needle can be limited under the action of the locking ring;

2. through setting up carrying structure and casing, can fix the pjncture needle of equidimension not under carrying structure's effect to improved the application scope of device, simultaneously promoting the piece through removing pricking in-process, can driving go-between synchronous motion, and then can drive fixed pjncture needle and remove, and rock when preventing to remove under the effect of guide way, avoided shaking the condition that leads to pricking the skew of position to influence treatment at the in-process hand of pricking.

Drawings

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

fig. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a schematic structural view of the carrying structure of the present invention;

fig. 4 is a schematic structural diagram of the locking structure of the present invention.

In the figure: 1. a housing; 2. a mounting structure; 3. a locking structure; 101. a guide groove; 102. a limiting hole; 201. a connecting ring; 202. a pushing block; 203. a fixed block; 204. a bidirectional screw rod; 205. rotating the rod; 206. a guide bar; 301. a lock ring; 302. a hand-held block; 303. pressing the block; 304. a spring; 305. a limiting rod.

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.

In the specific implementation: as shown in fig. 1-4, a CT guided interventional treatment device includes: the surface of the shell 1 is provided with two guide grooves 101, the inner walls of the guide grooves 101 are provided with uniformly distributed limiting holes 102, and the surface of the shell 1 is provided with uniformly distributed scale marks; the carrying structure 2 is used for fixing the puncture needle and is arranged on the inner edge of the shell 1 and is connected with the inner edge of the shell 1 in a sliding way; and a locking structure 3 for limiting the moving distance of the carrying structure 2, wherein the locking structure 3 is arranged on the inner edge of the shell 1 and is positioned below the carrying structure 2.

As shown in fig. 1, 2 and 3, the carrying structure 2 includes a connecting ring 201 slidably connected to an inner edge of the housing 1, two pushing blocks 202 are fixedly connected to a surface of the connecting ring 201, the two pushing blocks 202 are slidably connected to inner walls of the two guide grooves 101, two fixing blocks 203 are slidably connected to an inner edge of the connecting ring 201, the two fixing blocks are symmetrically distributed, a bidirectional screw 204 is rotatably connected to an inner wall of the connecting ring 201, guide rods 206 are symmetrically distributed to the inner wall of the connecting ring 201, one end of each fixing block 203 is in threaded connection with a surface of the bidirectional screw 204, the other end of each fixing block 203 is in sliding connection with a surface of the corresponding guide rod 206, a rotating rod 205 is engaged with a surface of the corresponding bidirectional screw 204, the other end of each rotating rod 205 penetrates through the adjacent pushing blocks 202, bevel gears are disposed at one end of each rotating rod 205 and a middle portion of the corresponding bidirectional screw 204, the two bevel gears are meshed with each other, namely the two bevel gears can be driven to rotate by screwing the rotating rod 205, so that the bidirectional screw rod 204 is driven to synchronously rotate under the mutual matching of the two bevel gears, thereby driving the two fixing blocks 203 to approach or depart from each other, thereby fixing the puncture needles with different sizes, increasing the application range of the device, meanwhile, the guide rod 206 is arranged, so that the two fixing blocks 203 can be prevented from driving the two fixing blocks 203 to synchronously rotate in the rotation process of the bidirectional screw 204 under the action of the guide rod 206, the fixing blocks 203 can move more stably, after the puncture needle to be used is fixed by the two fixing blocks 203, the connecting ring 201 can be driven by moving the pushing block 202 to move the puncture needle, under the effect of guide way 101 can make the pjncture needle remove steadily, avoided medical personnel's hand to tremble simultaneously and lead to the condition that the puncture position is not right.

As shown in fig. 1, 2 and 4, the locking structure 3 includes a locking ring 301 slidably connected to the inner edge of the housing 1, two hand-held blocks 302 are fixedly connected to the surface of the locking ring 301, the two hand-held blocks 302 are respectively slidably connected to the inner walls of the two guide grooves 101, two press blocks 303 are slidably connected to the inner wall of the hand-held block 302, the cross section of the press block 303 is U-shaped, one end of the press block 303 penetrates through the hand-held block 302, and the other end of the press block 303 penetrates through the hand-held block 302 and is fixedly connected to a limit rod 305 matched with the limit hole 102. The surface of the pressing block 303 is fixedly connected with a spring 304, the other end of the spring 304 is fixedly connected with the inner wall of the handheld block 302, the pressing block 303 can be contracted into the handheld block 302 by extruding the pressing block 303, so that the pressing block 303 arranged in a U shape can drive the limiting rod 305 to be contracted into the handheld block 302, the limiting rod 305 can be contracted to be separated from the limiting hole 102 by extruding the pressing block 303, the position of the locking ring 301 can be adjusted by moving the handheld block 302 up and down, after the required position is adjusted, the pressing block 303 is released, the pressing block 303 can be reset under the action of the spring 304, so that the limiting rod 305 is driven to be inserted into the limiting hole 102 to limit the position of the handheld block 302, the descending height of the connecting ring 201 can be limited by matching with a scale line arranged on the surface of the shell 1, and the connecting ring 201 can be blocked by the locking ring 301 and cannot move downwards when the connecting ring 201 moves downwards to the locking position, the situation that the traditional puncture needle is penetrated too deeply or shallowly to cause poor treatment effect is avoided.

When the utility model is used, the focus of a patient is determined by CT equipment, a puncture needle to be fixed is placed between two fixed blocks 203, the two-way screw rod 204 can be driven to rotate under the combined action of two cone pulleys by rotating the rotating rod 205, so as to drive the two fixed blocks 203 to mutually approach and clamp the puncture needle, according to the puncture depth required by the focus of the patient determined by the CT equipment, the pressing block 303 is extruded and the position of the locking ring 301 is adjusted by matching with the scale mark, thereby avoiding the situation that the treatment effect is not good due to the deeper or shallower insertion depth in the puncture process, the device is placed at the position to be treated, the puncture needle is driven to move and puncture the focus by moving the pushing block 202, the pushing block 202 can be limited under the setting of the guide groove 101, so that the pushing block drives the connecting ring 201 to move along the guide groove 101, and the situation that the hand in the puncture process causes the deviation of the puncture position is avoided, the therapeutic effect is improved.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A CT-guided interventional treatment device, comprising:

the device comprises a shell (1), wherein the surface of the shell (1) is provided with two guide grooves (101), the inner wall of each guide groove (101) is provided with uniformly distributed limiting holes (102), and the surface of the shell (1) is provided with uniformly distributed scale marks;

the carrying structure (2) is used for fixing the puncture needle, is arranged on the inner edge of the shell (1) and is in sliding connection with the inner edge of the shell (1);

and the locking structure (3) is used for limiting the moving distance of the carrying structure (2), and the locking structure (3) is arranged on the inner edge of the shell (1) and is positioned below the carrying structure (2).

2. The CT-guided interventional treatment device of claim 1, wherein: carry on structure (2) including sliding connection in go-between (201) of casing (1) inner edge, the fixed surface of go-between (201) is connected with quantity and promotes piece (202) for two, two promote piece (202) respectively with two the inner wall sliding connection of guide way (101), the inner edge sliding connection of go-between (201) has fixed block (203) that quantity is two and symmetric distribution, the inner wall of go-between (201) rotates and is connected with two-way lead screw (204), the inner wall fixedly connected with of go-between (201) and guide bar (206) of two-way lead screw (204) symmetric distribution.

3. The CT-guided interventional treatment device of claim 2, wherein: the one end of fixed block (203) and the surface threaded connection of two-way lead screw (204), the other end of fixed block (203) and the surface sliding connection of guide bar (206), the surface meshing of two-way lead screw (204) is connected with dwang (205), the other end of dwang (205) runs through adjacent promotion piece (202).

4. The CT-guided interventional treatment device of claim 1, wherein: locking structure (3) are including sliding connection in lock ring (301) of casing (1) inner edge, the surperficial fixed connection of lock ring (301) has handheld piece (302) that quantity is two, two handheld piece (302) respectively with two the inner wall sliding connection of guide way (101).

5. The CT-guided interventional treatment device of claim 4, wherein: the inner wall of the handheld block (302) is connected with two pressing blocks (303) in a sliding mode, the cross section of each pressing block (303) is U-shaped, one end of each pressing block (303) penetrates through the handheld block (302), and the other end of each pressing block (303) penetrates through the handheld block (302) and is fixedly connected with a limiting rod (305) matched with the limiting hole (102).

6. The CT-guided interventional treatment device of claim 5, wherein: the surface of the pressing block (303) is fixedly connected with a spring (304), and the other end of the spring (304) is fixedly connected with the inner wall of the handheld block (302).