CN221831519U - Novel puncture device for radiation interventional therapy - Google Patents

Abstract

The present application relates to the technical field of radiological interventional therapy instruments, and discloses a new type of puncture device for radiological interventional therapy, including a needle seat, a needle body and a guide fixing device; the guide fixing device includes a suction cup structure, a guide tube, a sliding base, a sliding piston and a pressing plate; the suction cup structure is a transparent structure; the guide tube has a sliding cavity; a strip-shaped sliding opening is provided on the left and right sides of the guide tube; the sliding base is slidably connected in the sliding cavity through the sliding piston; the needle seat is detachably connected to the sliding base; the lower end of the needle body passes through the needle seat and the sliding piston and is placed in the sliding cavity; one end of the two pressing plates passes through the two strip-shaped sliding openings and is connected to the left and right sides of the sliding base, and the other end is located outside the left and right sides of the guide tube. The new type of puncture device for radiological interventional therapy provided by the present application is more convenient for positioning and puncturing, reduces shaking during puncture, and improves the accuracy of puncture work, thereby achieving a safer and more convenient effect of use, and is more practical.

Description

A new puncture device for radiological interventional therapy

Technical Field

The utility model relates to the technical field of radiological interventional therapy equipment, in particular to a novel puncture device for radiological interventional therapy.

Background Art

Interventional radiology is developed on the basis of new technologies such as imaging diagnosis, selective or superselective angiography, fine needle aspiration and cytopathology. It includes two basic contents: First, based on imaging diagnosis, using catheter and other technologies, non-surgical treatment of some diseases under imaging monitoring. Second, under imaging monitoring, using percutaneous puncture, catheter and other technologies to obtain histological, bacteriological, physiological and biochemical data to clarify the nature of the lesion.

Patent No. CN202220131290.3 discloses an auxiliary guidewire interventional puncture needle for radiological interventional therapy. The auxiliary guidewire interventional puncture needle for radiological interventional therapy comprises a handheld needle holder and a fixing device, the inner wall of the handheld needle holder is provided with a puncture needle, the fixing device comprises a mounting block, the outer wall of the mounting block is fixedly connected with a straw, the end of the straw away from the mounting block is fixedly connected with a fixed suction cup, the top outer wall of the mounting block is fixedly connected with an airbag, the outer wall of the airbag is fixedly connected with a connecting tube, and the end of the connecting tube away from the airbag is fixedly connected to the inner wall of the straw. After adjusting the puncture angle, the fixing device is slid on the outer wall of the puncture needle, and the airbag is pinched by hand. The liquid in the airbag 80 moves into the straw through the connecting tube, and the straw transfers the liquid to the outer wall of the fixed suction cup. The liquid in the airbag is colloid, and the outer wall of the skin has oily substances. The fixed suction cup is pressed against the skin, the air in the fixed suction cup is discharged, and the fixing device is fixed to the outer wall of the skin. However, the contact area between the fixing device and the outer wall of the patient's skin is small, the positioning puncture is not firm enough, and it is easy to have the phenomenon of adsorption loosening, which increases the risk of the puncture needle shaking during puncture.

Utility Model Content

The purpose of the utility model is to overcome the problems of the prior art and provide a new puncture device for radiological interventional therapy.

In order to achieve the above purpose, the utility model adopts the following scheme:

A novel puncture device for radiological interventional therapy comprises a needle seat and a needle body connected to the needle seat; and also comprises a guide fixing device; the guide fixing device comprises:

The suction cup structure is a transparent structure;

A guide tube connected to the top of the suction cup structure; the guide tube has a sliding cavity penetrating the upper and lower end surfaces thereof and communicating with the inner cavity of the suction cup structure; a strip-shaped sliding opening extending from the top to the bottom of the guide tube is provided on the left and right sides of the guide tube;

A sliding base and a sliding piston; the sliding base is adapted and slidably connected in the sliding cavity through the sliding piston and can slide back and forth along the length direction of the sliding cavity;

The needle seat is detachably connected to the sliding base; the lower end of the needle body passes through the needle seat and the sliding piston and is placed in the sliding cavity, and can slide downward with the sliding base to pass through the sliding cavity and enter the inner cavity of the suction cup structure;

A pressing plate, one end of the two pressing plates passes through the two strip-shaped sliding openings and is connected to the left and right sides of the sliding base, and the other end is located outside the left and right sides of the guide tube.

Furthermore, the suction cup structure includes a suction cup seat and a positioning suction cup; the positioning suction cup is connected to the bottom end of the suction cup seat; and the top end of the suction cup seat is detachably connected to the lower end of the guide tube.

Furthermore, the top end of the suction cup seat is threadedly connected to the lower end of the guide tube.

Furthermore, the suction cup seat has a limiting tube portion extending to the inner cavity of the positioning suction cup; the limiting tube portion communicates with the sliding cavity and the inner cavity of the positioning suction cup.

Furthermore, the guiding and fixing device also includes an auxiliary negative pressure component; the auxiliary negative pressure component includes an auxiliary negative pressure suction cup, an annular tube, a suction pipe and an air bag; a skin-contacting portion is arranged to extend outwardly on all sides of the positioning suction cup; the bottom end surface of the skin-contacting portion has a plurality of suction cup mounting grooves evenly arranged around the suction cup seat; an auxiliary negative pressure suction cup is adapted to be installed in each suction cup mounting groove; each of the auxiliary negative pressure suction cups is connected to the annular tube via a suction pipe; the annular tube is mounted on the suction cup seat and is connected to the air bag.

Furthermore, there are four auxiliary negative pressure suction cups.

Furthermore, the guide tube is in the shape of a square tube column; a scale located on one side of the strip-shaped sliding opening is provided on the left side and/or the right side of the guide tube.

Further, a strip-shaped hole is disposed on the right side of the guide tube and is located on the other side of the strip-shaped sliding opening and extends from the top end to the bottom end of the guide tube;

A positioning mounting part is provided on the pressing plate on the right side of the guide tube corresponding to the position of the strip hole; the positioning mounting part has a mounting hole aligned with the strip hole; and the positioning mounting part is provided with a positioning bolt adapted to pass through the mounting hole and connected with the strip hole.

Furthermore, the sliding base has a positioning groove adapted to be connected with the lower end of the needle seat;

The sliding base and the sliding piston are provided with a needle channel which is opened downward from the groove bottom of the positioning groove and can be adapted for the needle body to pass through.

Compared with the existing technology, the utility model has the following advantages:

The utility model improves the guide fixing device on the basis of the needle seat and the needle body, and forms the guide fixing device by arranging a suction cup structure, a guide tube, a sliding base, a sliding piston and a pressing plate in combination, and places the suction cup structure on the patient's diseased position, and uses the transparent suction cup structure and medical imaging equipment to observe and determine the needle insertion position, and then absorbs and positions the suction cup structure on the patient's skin to increase the contact area with the patient's skin, and facilitates the support and positioning of the guide tube, and then pushes the pressing plate downward and uses the guide tube for guidance, so that the needle seat and the needle body move more stably along the bottom of the sliding cavity with the sliding piston and the sliding base to complete the puncture, and the positioning puncture is more convenient, the shaking during puncture is reduced, and the accuracy of the puncture work is improved, thereby achieving the effect of safer and more convenient use and enhanced practicality.

BRIEF DESCRIPTION OF THE DRAWINGS

The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

FIG1 is a schematic diagram of the three-dimensional structure of a novel puncture device for radiological interventional therapy of the present invention.

FIG. 2 is a schematic diagram of the exploded three-dimensional structure of the novel puncture device for radiological interventional therapy of the present invention.

FIG. 3 is a schematic diagram of the three-dimensional structure of the suction cup structure of the present invention.

The figure includes:

Needle seat 1, needle body 2, guide fixing device 3, suction cup structure 31, suction cup seat 311, limiting tube part 3111, positioning suction cup 312, skin close part 3121, suction cup mounting groove 3122, auxiliary negative pressure assembly 32, auxiliary negative pressure suction cup 321, annular tube 322, suction tube 323, air bag 324, guide tube 33, sliding cavity 331, strip sliding mouth 332, strip hole 333, sliding base 34, positioning groove 341, sliding piston 35, pressing plate 36, positioning mounting part 361, mounting hole 362, scale 37, positioning bolt 38.

DETAILED DESCRIPTION

The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

As shown in Fig. 1 to Fig. 3, a novel puncture device for radiological interventional therapy comprises a needle seat 1, a needle body 2 connected to the needle seat 1, and a guide fixing device 3; the guide fixing device 3 comprises a suction cup structure 31, a guide tube 33, a sliding base 34, a sliding piston 35, and a pressing plate 36. The suction cup structure 31 is a transparent structure, which is convenient for observing and determining the needle insertion position. The guide tube 33 is connected to the top of the suction cup structure 31, and plays a good role in guiding the movement of the needle body 2. The guide tube 33 has a sliding cavity 331 that passes through its upper and lower end surfaces and communicates with the inner cavity of the suction cup structure 31; the left and right sides of the guide tube 33 are oppositely provided with a strip-shaped sliding opening 332 extending from the top to the bottom of the guide tube 33; the sliding base 34 is adapted and slidably connected in the sliding cavity 331 through the sliding piston 35 and can slide back and forth along the length direction of the sliding cavity 331, so that the needle seat 1 and the needle body 2 can move more stably along the bottom of the sliding cavity 331 with the sliding piston 35 and the sliding base 34 to facilitate puncture. The needle seat 1 is detachably connected to the sliding base 34; the lower end of the needle body 2 passes through the needle seat 1 and the sliding piston 35 and is placed in the sliding cavity 331, and can slide downward with the sliding base 34 to pass through the sliding cavity 331 and enter the inner cavity of the suction cup structure 31. The purpose of the pressing plates 36 is to enhance the convenience of use. One end of the two pressing plates 36 passes through the two strip-shaped sliding openings 332 and is connected to the left and right sides of the sliding base 34 , respectively, and the other end is located outside the left and right sides of the guide tube 33 .

On the basis of the needle seat 1 and the needle body 2, the guide fixing device 3 is improved. The guide fixing device 3 is formed by combining a suction cup structure 31, a guide tube 33, a sliding base 34, a sliding piston 35 and a pressing plate 36. The suction cup structure 31 is placed on the patient's diseased position. The transparent suction cup structure 31 is used in combination with medical imaging equipment to observe and determine the needle insertion position. The suction cup structure 31 is adsorbed and positioned on the patient's skin to increase the contact area with the patient's skin, which is convenient for supporting and positioning the guide tube 33. Then, by pushing the pressing plate 36 downward and guiding with the guide tube 33, the needle seat 1 and the needle body 2 move more stably along the bottom of the sliding cavity 331 with the sliding piston 35 and the sliding base 34 to complete the puncture. The positioning of the puncture is more convenient, the shaking during the puncture is reduced, and the accuracy of the puncture work is improved, thereby achieving a safer and more convenient effect of use and enhanced practicality.

Specifically, the suction cup structure 31 includes a suction cup seat 311 and a positioning suction cup 312; the positioning suction cup 312 is connected to the bottom end of the suction cup seat 311; the top end of the suction cup seat 311 is detachably connected to the lower end of the guide tube 33. The suction cup seat 311 is used to realize a detachable connection with the lower end of the guide tube 33. Preferably, the top end of the suction cup seat 311 is threadedly connected to the lower end of the guide tube 33. The connection method is simple and easy to disassemble and assemble. Of course, other detachable connection methods, such as snap-on installation methods, etc., are also possible; the positioning suction cup 312 is then used to absorb and position on the patient's skin, increase the contact area with the patient's skin, and facilitate the support and positioning of the guide tube 33, so as to reduce the shaking during puncture and improve the accuracy of the puncture work, thereby achieving a safer and more convenient effect of use and enhanced practicality.

In order to prevent the positioning suction cup 312 from sucking the patient's skin too far due to negative pressure, thus affecting the puncture of the needle body 2, the suction cup seat 311 is provided with a limiting tube portion 3111 extending to the inner cavity of the positioning suction cup 312; the limiting tube portion 3111 connects the sliding cavity 331 and the inner cavity of the positioning suction cup 312. The needle body 2 passes through the limiting tube portion 3111 and enters the inner cavity of the positioning suction cup 312, and then completes the puncture, so that the puncture is more accurate.

In order to further enhance the stability of the structure when placed on the patient's skin and improve the stability of the puncture work, so as to reduce the shaking during puncture and achieve a safer and more convenient use, the guide and fixing device 3 also includes an auxiliary negative pressure component 32; the auxiliary negative pressure component 32 includes an auxiliary negative pressure suction cup 321, an annular tube 322, a suction pipe 323 and an air bag 324; a skin-contacting portion 3121 extending outwardly around the positioning suction cup 312; a plurality of suction cup mounting grooves 3122 evenly arranged around the suction cup seat 311 are provided on the bottom end surface of the skin-contacting portion 3121; an auxiliary negative pressure suction cup 321 is adapted to be installed in each suction cup mounting groove 3122; each of the auxiliary negative pressure suction cups 321 is connected to the annular tube 322 through a suction pipe 323; the annular tube 322 is sleeved on the suction cup seat 311 and is connected to the air bag 324. Each negative pressure suction cup is connected to the air bag 324 through the suction tube 323 and the annular tube 322. By pressing the air bag 324, each negative pressure suction cup generates negative pressure, so that the skin-adhering portion 3121 and the negative pressure suction cup are combined to be closer to the patient's skin, so that the positioning suction cup 312 is more stably positioned and adsorbed on the patient's skin, so as to reduce shaking during puncture and improve the accuracy of the puncture work, thereby achieving an effect of safer and more convenient use and enhanced practicality.

In this embodiment, there are four auxiliary negative pressure suction cups 321. Of course, the auxiliary negative pressure suction cups 321 can also be reasonably set according to needs. The plurality of main auxiliary negative pressure suction cups 321 can make the positioning suction cup 312 stably and reliably adsorbed and positioned on the patient's skin to facilitate the puncture work and achieve the effect of accurate puncture.

In order to facilitate the assembly of the structure, the setting of the scale 37, and the opening of the strip hole 333, the guide tube 33 is in the shape of a square tube column; the left side and/or right side of the guide tube 33 is provided with a scale 37 located on one side of the strip sliding opening 332. By providing the scale 37, it is helpful to clearly understand the moving distance of the pressing plate 36, and then understand the moving distance of the needle body 2, improve the accuracy of the puncture work, thereby achieving a safer and more convenient effect of use, and enhancing practicality.

Preferably, in order to stably complete the puncture work and facilitate other corresponding treatment methods for the patient, the right side of the guide tube 33 is provided with a strip hole 333 located on the other side of the strip sliding opening 332 and extending from the top to the bottom of the guide tube 33; the pressing plate 36 on the right side of the guide tube 33 is provided with a positioning mounting portion 361 corresponding to the position of the strip hole 333; the positioning mounting portion 361 has a mounting hole 362 aligned with the strip hole 333; the positioning mounting portion 361 is provided with a positioning bolt 38 adapted to pass through the mounting hole 362 and connected to the strip hole 333. When the needle body 2 is lowered and moved to the set position, the positioning bolt 38 is used to pass through the mounting hole 362 and be adapted to be connected to the strip hole 333, so as to effectively position the needle body 2, reduce the shaking and movement of the needle body 2 during puncture, and improve the accuracy of the puncture work, thereby achieving a safer and more convenient use effect, and enhancing practicality, so as to facilitate the completion of puncture and other treatments.

In order to facilitate the disassembly and assembly between the sliding base 34 and the needle seat 1, the sliding base 34 has a positioning groove 341 that is matched and connected with the lower end of the needle seat 1; the lower end of the needle seat 1 is matched and installed with the positioning groove 341, which is conducive to the fixation of the needle seat 1 and facilitates the subsequent puncture work. The sliding base 34 and the sliding piston 35 have a needle channel that is opened downward from the bottom of the positioning groove 341 and can be matched and passed by the needle body 2.

In summary, the embodiment of the utility model provides a new puncture device for radiological interventional therapy, wherein, on the basis of the needle seat 1 and the needle body 2, the guide fixing device 3 is improved, and the guide fixing device 3 is formed by combining a suction cup structure 31, a guide tube 33, a sliding base 34, a sliding piston 35 and a pressing plate 36, and the suction cup structure 31 is placed on the patient's diseased position, and the transparent suction cup structure 31 is used in combination with medical imaging equipment to observe and determine the needle insertion position, and the suction cup structure 31 is adsorbed and positioned on the patient's skin to increase the contact area with the patient's skin, so as to facilitate the support and positioning of the guide tube 33, and then by pushing the pressing plate 36 downward and guiding with the guide tube 33, the needle seat 1 and the needle body 2 move more stably along the bottom of the sliding cavity 331 with the sliding piston 35 and the sliding base 34 to complete the puncture, and the positioning puncture is more convenient, the shaking during puncture is reduced, and the accuracy of the puncture work is improved, thereby achieving a safer and more convenient effect of use, and the practicality is enhanced.

The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present application. These improvements and substitutions should also be regarded as the scope of protection of the present application.

Claims (9)

1. A novel puncture device for radiation interventional therapy comprises a needle seat and a needle body connected with the needle seat; the device is characterized by also comprising a guiding and fixing device; the guide fixing device includes:

The sucker structure is a transparent structure;

The guide tube is connected with the top end of the sucker structure; the guide tube is provided with a sliding cavity which penetrates through the upper end face and the lower end face of the guide tube and is communicated with the inner cavity of the sucker structure; the left side and the right side of the guide tube are oppositely provided with a strip-shaped sliding port which extends from the top end to the bottom end of the guide tube;

A sliding base and a sliding piston; the sliding base is in adaptive sliding connection with the sliding cavity through the sliding piston and can slide back and forth along the length direction of the sliding cavity;

The needle seat is detachably connected to the sliding base; the lower end of the needle body passes through the needle seat and the sliding piston to be arranged in the sliding cavity, and can downwards slide along with the sliding base to pass through the sliding cavity to enter the inner cavity of the sucker structure;

And one ends of the two pressing plates respectively penetrate through the two strip-shaped sliding openings to be connected with the left side and the right side of the sliding base, and the other ends of the two pressing plates are positioned outside the left side and the right side of the guide tube.

2. The novel puncture device for radiation interventional therapy according to claim 1, wherein the sucker structure comprises a sucker seat and a positioning sucker; the positioning sucker is connected to the bottom end of the sucker seat; the top end of the sucker seat is detachably connected with the lower end of the guide tube.

3. The novel puncture device for the radiation interventional therapy according to claim 2, wherein the top end of the sucker seat is in threaded connection with the lower end of the guide tube.

4. The novel puncture device for the radiation interventional therapy according to claim 2, wherein the sucker seat is provided with a limiting tube part extending to the inner cavity of the positioning sucker; the limiting pipe part is communicated with the sliding cavity and the inner cavity of the positioning sucker.

5. The novel puncture device for radiation interventional therapy according to claim 2, wherein the guiding and fixing device further comprises an auxiliary negative pressure component; the auxiliary negative pressure assembly comprises an auxiliary negative pressure sucker, an annular pipe, a suction pipe and an air bag; the periphery of the positioning sucker is provided with a skin clinging part extending outwards; the bottom end surface of the skin clinging part is provided with a plurality of sucker mounting grooves which are uniformly distributed around the sucker seat; one auxiliary negative pressure sucker is arranged in each sucker mounting groove in an adapting way; each auxiliary negative pressure sucker is communicated with the annular tube through one suction tube; the annular tube is sleeved on the sucker seat and is communicated with the air bag.

6. The novel puncture device for radiation interventional therapy according to claim 5, wherein the number of the auxiliary negative pressure suckers is 4.

7. The novel puncture device for radiation interventional therapy according to claim 1, wherein the guide tube has a square tube shape; the left side and/or the right side of the guide tube are/is provided with a graduated scale positioned on one side of the strip-shaped sliding port.

8. The novel puncture device for radiation interventional therapy according to claim 7, wherein a strip-shaped hole is provided on the right side of the guide tube on the other side of the strip-shaped sliding port and extends from the top end to the bottom end of the guide tube;

A positioning installation part corresponding to the position of the strip-shaped hole is arranged on the pressing plate on the right side of the guide tube; the positioning and mounting part is provided with a mounting hole which is aligned with the strip-shaped hole; and the positioning installation part is provided with a positioning bolt which is connected with the strip-shaped hole in a way of passing through the installation hole in a matching way.

9. The novel puncture device for the radiation interventional therapy according to claim 1, wherein the sliding base is provided with a positioning groove which is connected with the lower end of the needle seat in an adaptive manner;

The sliding base and the sliding piston are provided with needle pore canals which are downwards arranged on the bottom of the positioning groove and can be used for the needle body to pass through in an adapting way.