Puncture positioning auxiliary device

By designing a puncture positioning auxiliary device including a reclining plate, a fixed foot, a guide rail, a slider and a puncture device, the problems of heavy and complex operation of the puncture needle are solved, and the precise positioning and safe operation of the needle body are achieved.

CN222676394UActive Publication Date: 2025-03-28SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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Patent Information

Application Number
CN202421137414.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-23
Publication Date
2025-03-28
Estimated Expiration
2034-05-23

AI Technical Summary

Technical Problem

During puncture surgery, the tail of the puncture needle is heavy, which can easily cause needle removal and complex operation, making it difficult to ensure the precise positioning of the needle body.

Method used

A puncture positioning auxiliary device is designed, including a reclining plate, a fixing foot, a guide rail, a slide and a puncture device. The upper and lower heights are adjusted by the guide rail, and the slide rail and the freely extendable crooked arm adjust the front, back, left and right positions to achieve accurate positioning of the needle.

Benefits of technology

The device can realize accurate positioning of the needle body according to the patient's different body position and different position, angle and depth of the needle, reduce the operation time and complications, and ensure the accuracy and safety of the puncture.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of medical apparatus and instruments, in particular to a puncture positioning auxiliary device which comprises a lying plate horizontally placed on a CT (Computed Tomography) bed; the bottom of the fixing foot is connected with the upper end face of the lying plate; the guide rail is connected with the fixed leg in a vertical sliding manner; the lower bottom face of the sliding plate is fixedly connected with the inner wall of the guide rail through triangular ribs, and a sliding rail is arranged on the upper end face of the sliding plate. The puncture device comprises a sliding seat connected with the sliding rail in a sliding manner, a rotating seat connected with the upper end of the sliding seat in a rotating manner, a crank arm capable of freely extending and a puncture assembly; one end of the crank arm is connected with the rotating seat, and the other end of the crank arm is connected with the puncture assembly. The vertical height can be adjusted through the guide rail, the front, back, left and right positions can be flexibly adjusted through the sliding rail and the freely-extending crank arm, the positions can be changed according to different body positions of patients and different positions, angles and depths of needle insertion through the combination of the three parts, and the needle can accurately penetrate to a target spot in the operation process.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a puncture positioning auxiliary device. Background Art

[0002] The puncture needle plays an irreplaceable role in surgeries such as lung puncture positioning, lung puncture ablation, abdominal puncture and breast puncture. In order to ensure the success of the operation and the safety of the patient, the doctor needs to master the skills of using the puncture needle and choose the appropriate type and specification of the puncture needle according to different surgical needs.

[0003] However, the tail of the puncture needle is heavy, which can easily cause the needle to fall out during the puncture treatment. Therefore, an auxiliary puncture device is needed to balance the swing of the needle during the operation, shorten the operation time, and reduce the occurrence of complications. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and provide a puncture positioning auxiliary device, comprising:

[0005] Lying board, placed horizontally on the CT bed;

[0006] A fixed foot, the bottom of which is connected to the upper end surface of the lying board;

[0007] A guide rail, wherein the guide rail is connected to the fixed foot in a vertically slidable manner;

[0008] A slide plate, wherein the lower bottom surface of the slide plate is fixedly connected to the inner wall of the guide rail through triangular ribs, and the upper end surface of the slide plate is provided with a slide rail;

[0009] The puncture device comprises a sliding seat slidably connected to the slide rail, a rotating seat rotatably connected to the upper end of the sliding seat, a freely extendable crank arm and a puncture assembly; one end of the crank arm is connected to the rotating seat, and the other end is connected to the puncture assembly.

[0010] Furthermore, the lying board is in a quadrilateral shape; the four fixed foot rings are arranged at the four corners of the lying board, and the fixed feet are in an L-shaped structure, including a horizontally arranged bottom and a vertically arranged support part, and the bottom of the fixed foot is fixedly connected to the lying board through a rotating plug.

[0011] Furthermore, at least three first fixing holes are provided on the support portion of the fixed foot in the vertical direction, and at least two second fixing holes are provided on the end of the guide rail connected to the fixed foot in the vertical direction, and the sizes of the first fixing holes match those of the second fixing holes. The tail end of the guide rail is fixedly connected to the fixed foot by a butterfly screw, and the specifications of the butterfly screw match those of the first fixing hole.

[0012] Furthermore, the triangular rib includes a vertical side and a horizontal side that are perpendicular to each other, the guide rail is fixedly connected to the vertical side of the triangular rib by screws, and the slide plate is fixedly connected to the horizontal side of the triangular rib by screws.

[0013] Furthermore, a first hollow portion is provided through the top of the slide seat, a second hollow portion is provided through the side wall of the slide seat, and the second hollow portion is connected to the first hollow portion; a columnar member is provided at the bottom of the rotating seat, and the columnar member matches the first hollow portion.

[0014] Furthermore, the columnar member at the bottom of the rotating seat can be rotatably inserted into the first hollow portion, and a butterfly screw is provided in the second hollow portion.

[0015] Furthermore, the puncture assembly includes a turn, a stud and a puncture needle fixing ball; one end of the turn is connected to the turn arm, and the other end is penetrated by a third hollow portion, and a fourth hollow portion is penetrated by a side wall of the turn, and the fourth hollow portion is connected to the third hollow portion; the third hollow portion matches the size of the stud.

[0016] Furthermore, one end of the stud can be rotatably inserted in the third hollow part, and the other end is detachably connected to the puncture needle fixing ball; a butterfly screw is provided in the fourth hollow part.

[0017] Furthermore, the puncture needle fixing ball is made of sterile disposable silicone material.

[0018] Furthermore, a small hole with a diameter of 0.1 mm-0.5 mm is provided on the surface of the puncture needle fixing ball.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model is a puncture positioning auxiliary device that can adjust the upper and lower heights through guide rails, and flexibly adjust the front, back, left and right positions through slide rails and freely extendable crank arms. The combination of the three can change the position according to the different body positions of the patients and the different positions, angles and depths of the needle insertion, and can accurately penetrate the target point during operation.

[0021] 2. The puncture needle fixing ball of the puncture positioning auxiliary device of the utility model is made of sterile disposable silicone material, so that one person can use it to avoid cross infection.

[0022] 3. The slide seat and the turning head of the puncture positioning auxiliary device of the utility model are both 360° rotatable and adjustable, which can achieve more subtle direction adjustment and make the needle insertion more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a structural schematic diagram of a puncture positioning auxiliary device of the utility model;

[0025] Figure 2 This is a top view of a puncture positioning auxiliary device of the utility model;

[0026] Figure 3 This is a schematic diagram of a guide rail of a puncture positioning auxiliary device of the utility model;

[0027] Figure 4 This is a schematic diagram of a fixed foot of a puncture positioning auxiliary device of the utility model;

[0028] Figure 5 This is a schematic diagram of a slide seat of a puncture positioning auxiliary device of the utility model;

[0029] Figure 6 This is a schematic diagram of a rotating seat of a puncture positioning auxiliary device of the utility model;

[0030] Figure 7 The utility model is a schematic diagram of a turning head of a puncture positioning auxiliary device.

[0031] Reference numerals

[0032] 1: Lying board;

[0033] 2: Fixed foot;

[0034] 21: rotating plug; 22: first fixing hole;

[0035] 3: Guide rail;

[0036] 31: second fixing hole;

[0037] 4: Skateboard;

[0038] 41: slide rail;

[0039] 5: Triangular rib;

[0040] 51: sliding seat; 52: rotating seat; 53: crank arm; 54: puncture assembly;

[0041] 511: first hollow part; 512: second hollow part;

[0042] 521: Columnar part;

[0043] 541: turning head; 542: double-headed stud; 543: puncture needle fixing ball;

[0044] 5411: third hollow part; 5412: fourth hollow part;

[0045] 6: Butterfly screw. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model and are not used to limit the utility model.

[0047] Example 1

[0048] See also Figure 1-7 The technical solution of a puncture positioning auxiliary device provided in this embodiment includes the following:

[0049] Lying board 1, placed horizontally on the CT bed;

[0050] A fixed foot 2, the bottom of which is connected to the upper end surface of the lying board 1;

[0051] A guide rail 3, wherein the guide rail 3 is vertically slidably connected to the fixed foot 2;

[0052] A slide plate 4, wherein the lower surface of the slide plate 4 is fixedly connected to the inner wall of the guide rail 3 via a triangular rib 5, and a slide rail 41 is provided on the upper end surface of the slide plate 4;

[0053] The puncture device includes a slide seat 51 slidably connected to the slide rail 41, a rotating seat 52 rotatably connected to the upper end of the slide seat 51, a freely extendable crank arm 53 and a puncture assembly 54; one end of the crank arm 53 is connected to the rotating seat 52, and the other end is connected to the puncture assembly 54.

[0054] In a specific implementation, the crank arm 53 can be made of materials such as PU telescopic tube or stainless steel telescopic tube currently available in the market.

[0055] Specifically, the lying board 1 is in a quadrilateral style; the four fixed feet 2 are arranged at the four corners of the lying board 1, and the fixed feet 2 are in an L-shaped structure style, including a horizontally arranged bottom and a vertically arranged support part, and the bottom of the fixed foot 2 is fixedly connected to the lying board 1 through a rotating plug 21.

[0056] In a specific implementation, there is no limit to the number of the fixing legs 2, and several pairs of fixing legs 2 may be provided, such as three pairs, that is, six fixing legs 2, which are symmetrically and evenly distributed along the long side direction.

[0057] Specifically, at least three first fixing holes 22 are provided on the supporting portion of the fixed foot 2 in the vertical direction, and at least two second fixing holes 31 are provided on the end of the guide rail 3 connected to the fixed foot 2 in the vertical direction, and the sizes of the first fixing holes 22 and the second fixing holes 31 match, and the tail end of the guide rail 3 is fixedly connected to the fixed foot 2 by a butterfly screw 6, and the specifications of the butterfly screw 6 match those of the first fixing hole 22.

[0058] In a specific implementation, a fixing plug to prevent sliding can also be provided in the first fixing hole 22, and the guide rail 3 is fixedly connected to the fixed foot 2 by a butterfly screw 6. In order to fix as firmly as possible, at least two butterfly screws 6 are required to fix a single guide rail 3 and the fixed foot 2, that is, at least two second fixing holes 31 are provided in the vertical direction at one end of the guide rail 3 connected to the fixed foot 2; and in order to leave an upper and lower adjustment range for the guide rail 3, at least three first fixing holes 22 are provided in the vertical direction on the supporting portion of the fixed foot 2.

[0059] In practice, when the height needs to be adjusted, the butterfly screw 6 is removed, the guide rail 3 is moved up or down to the required height, the first fixing hole 22 and the second fixing hole 31 are aligned, and the butterfly screw 6 is re-screwed to achieve fixation.

[0060] Specifically, the triangular rib 5 includes a vertical side and a horizontal side that are perpendicular to each other, the guide rail 3 is fixedly connected to the vertical side of the triangular rib 5 by screws, and the slide plate 4 is fixedly connected to the horizontal side of the triangular rib 5 by screws.

[0061] Specifically, a first hollow portion 511 is provided through the top of the sliding seat 51, and a second hollow portion 512 is provided through the side wall of the sliding seat 51, and the second hollow portion 512 is connected to the first hollow portion 511; a columnar member 521 is provided at the bottom of the rotating seat 52, and the columnar member 521 matches the first hollow portion 511.

[0062] In a specific implementation, there are a variety of ways to connect the slide 51 and the slide rail 41, such as a pulley member is provided at the bottom of the slide 51, a guide column is fixedly penetrated in the middle of the pulley member, both ends of the guide column are penetrated in the transverse slide grooves of the two side walls of the groove-type slide rail 41, and the guide column and the slide groove cooperate to enable the pulley member to drive the slide 51 to move on the slide rail 41; any connection method that can achieve relative displacement of the slide 51 and the slide rail 41 can be applied to the present design.

[0063] Specifically, the columnar member 521 at the bottom of the rotating seat 52 can be rotatably inserted into the first hollow portion 511 , and a butterfly screw 6 is provided in the second hollow portion 512 .

[0064] In a specific implementation, when the butterfly screw 6 is loosened, the columnar member 521 at the bottom of the rotating seat 52 can rotate 360° in the second hollow portion 512. After adjusting the rotating seat 52 to rotate to a preset angle, tighten the butterfly screw 6. The head of the butterfly screw 6 abuts against the columnar member 521 to limit the rotation of the rotating seat 52, completing the fixation. When the angle needs to be adjusted, loosen the butterfly screw 6.

[0065] Specifically, the puncture assembly 54 includes a turn 541, a stud 542 and a puncture needle fixing ball 543; one end of the turn 541 is connected to the turn arm 53, and the other end is penetrated by a third hollow portion 5411, and a fourth hollow portion 5412 is penetrated by the side wall of the turn 541, and the fourth hollow portion 5412 is connected to the third hollow portion 5411; the third hollow portion 5411 matches the size of the stud 542.

[0066] In a specific implementation, similar to the rotating seat 52, when the butterfly screw 6 is loosened, one end of the stud 542 placed on the turn head 541 can rotate 360° in the third hollow portion 541. After adjusting the turn head 541 to rotate to a preset angle, tighten the butterfly screw 6. The head of the butterfly screw 6 rests on the stud 542 to limit the rotation of the stud 542, completing the fixation. When the angle needs to be adjusted, loosen the butterfly screw 6.

[0067] Specifically, one end of the stud 542 can be rotatably inserted into the third hollow portion 5411 , and the other end is detachably connected to the puncture needle fixing ball 543 ; a butterfly screw 6 is provided in the fourth hollow portion 5412 .

[0068] Specifically, the puncture needle fixing ball 543 is made of sterile disposable silicone material.

[0069] In a specific implementation, the puncture needle fixing ball 543 made of silicone material has certain toughness and elasticity, and can clamp the stud 542 or the puncture needle, that is, it can be fixed by interference fit with the stud 542 or the puncture needle.

[0070] Specifically, a small hole with a diameter of 0.1 mm-0.5 mm is provided on the surface of the puncture needle fixing ball 543, and the small hole matches various types of puncture needles.

[0071] In specific implementation, this device can be used with CT guidance to achieve precise positioning. For example, CT images can be used to plan the puncture path, calculate the intervention direction and insertion depth of the ablation needle that needs to be tracked and corrected during the puncture process, until the ablation needle hits the target area. At the same time, according to the different positions, angles and depths of the patient's needle insertion, the position is changed, and the target point can be accurately penetrated during the operation, avoiding the operator using abstract thinking to measure the depth and angle of the needle insertion, balancing the swing of the needle body during the operation, shortening the operation time, and reducing the occurrence of complications.

[0072] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A puncture positioning auxiliary device, characterized in that: include: Lying board, placed horizontally on the CT bed; A fixed foot, the bottom of which is connected to the upper end surface of the lying board; A guide rail, wherein the guide rail is connected to the fixed foot in a vertically slidable manner; A slide plate, wherein the lower bottom surface of the slide plate is fixedly connected to the inner wall of the guide rail through triangular ribs, and the upper end surface of the slide plate is provided with a slide rail; The puncture device comprises a sliding seat slidably connected to the slide rail, a rotating seat rotatably connected to the upper end of the sliding seat, a freely extendable crank arm and a puncture assembly; one end of the crank arm is connected to the rotating seat, and the other end is connected to the puncture assembly.

2. The puncture positioning auxiliary device according to claim 1, characterized in that: The lying board is in a quadrilateral shape; the four fixed foot rings are arranged at the four corners of the lying board, and the fixed feet are in an L-shaped structure, including a horizontally arranged bottom and a vertically arranged support part, and the bottom of the fixed foot is fixedly connected to the lying board through a rotating plug.

3. The puncture positioning auxiliary device according to claim 2, characterized in that: At least three first fixing holes are provided on the support portion of the fixed foot in the vertical direction, and at least two second fixing holes are provided on the end of the guide rail connected to the fixed foot in the vertical direction, the sizes of the first fixing holes match those of the second fixing holes, and the tail end of the guide rail is fixedly connected to the fixed foot by a butterfly screw, and the specifications of the butterfly screw match those of the first fixing hole.

4. The puncture positioning auxiliary device according to claim 1, characterized in that: The triangular rib comprises a vertical side and a horizontal side which are perpendicular to each other. The guide rail is fixedly connected to the vertical side of the triangular rib by screws, and the slide plate is fixedly connected to the horizontal side of the triangular rib by screws.

5. The puncture positioning auxiliary device according to claim 1, characterized in that: A first hollow portion is provided through the top of the slide seat, a second hollow portion is provided through the side wall of the slide seat, and the second hollow portion is connected to the first hollow portion; a columnar member is provided at the bottom of the rotating seat, and the columnar member matches the first hollow portion.

6. The puncture positioning auxiliary device according to claim 5, characterized in that: The columnar member at the bottom of the rotating seat can be rotatably inserted into the first hollow portion, and a butterfly screw is arranged in the second hollow portion.

7. The puncture positioning auxiliary device according to claim 1, characterized in that: The puncture assembly includes a turn, a stud and a puncture needle fixing ball; one end of the turn is connected to the turn arm, and the other end is penetrated by a third hollow part, and a fourth hollow part is penetrated by a side wall of the turn, and the fourth hollow part is connected to the third hollow part; the third hollow part matches the size of the stud.

8. The puncture positioning auxiliary device according to claim 7, characterized in that: One end of the stud can be rotatably inserted in the third hollow part, and the other end is detachably connected to the puncture needle fixing ball; a butterfly screw is arranged in the fourth hollow part.

9. The puncture positioning auxiliary device according to claim 7, characterized in that: The puncture needle fixing ball is made of sterile disposable silicone material.

10. The puncture positioning auxiliary device according to claim 7, characterized in that: The surface of the puncture needle fixing ball is provided with a small hole with a diameter of 0.1mm-0.5mm.