Puncture needle for medical diagnosis

Abstract

The utility model provides a puncture needle for medical diagnosis, which relates to the technical field of medical instruments and comprises a puncture needle body. The puncture needle body is provided with a depth-keeping limiting barrel in the vertical direction, a spherical surface is arranged on the outer circumference of the bottom of the depth-keeping limiting barrel in a surrounding mode, a threaded hole penetrating left and right is formed in the left side wall of the depth-keeping limiting barrel, a depth-keeping locking button in the left-right direction is installed in the threaded hole of the depth-keeping limiting barrel, and a threaded column is arranged on the right side of the depth-keeping locking button. A rotating column with an anti-skid groove is arranged on the left end face of a threaded column of the depth-keeping locking button, so that the depth-keeping limiting barrel can be conveniently sleeved on the outer circumference of the puncture needle cylinder and is locked and fixed through the depth-keeping locking button, the insertion depth of the puncture needle cylinder can be conveniently limited through the depth-keeping limiting barrel, and the problem that the puncture needle is not provided with any depth-keeping structure, and the puncture needle is inconvenient to use is solved. The problems that the head of the puncture needle cannot reach the sampling position accurately, and a limiting measure is inconvenient to add on the puncture needle to limit the puncture depth of the puncture needle are solved.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to a puncture needle for medical diagnosis. Background Technology

[0002] Medical diagnosis refers to the process of identifying the location and extent of an abnormal condition in the human body and determining the name of the disease. Among these processes, puncture needles are mainly used to puncture human tissues or organs to obtain relevant biological samples or to administer drug injections and treatments. Collecting biological samples through puncture needles can help medical personnel understand the patient's physical condition in order to make diagnoses and provide treatment.

[0003] Based on the above, the inventors have discovered the following shortcomings in existing medical diagnostic puncture needles:

[0004] 1. The puncture needle has no depth-fixing structure, making it impossible for the tip of the puncture needle to accurately reach the sampling position. It is inconvenient to add limiting measures to the puncture needle to limit and fix the puncture depth.

[0005] 2. The puncture needle has an open tip, which can easily damage the human tissue it passes through during the puncture process. It is inconvenient to add a sealing measure to the puncture needle to seal the needle tip before it reaches the sampling position. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a puncture needle for medical diagnosis. This solves the problems of existing puncture needles lacking a depth-fixing structure, making it impossible for the needle tip to accurately reach the sampling position, and making it inconvenient to add limiting measures to the puncture needle to control the puncture depth. Furthermore, the open-ended needle tip can easily damage the tissues it passes through during puncture, and it is inconvenient to add sealing measures to ensure the needle tip is sealed before reaching the sampling position.

[0007] The purpose and efficacy of this novel medical diagnostic puncture needle are achieved through the following specific technical means:

[0008] A puncture needle for medical diagnosis includes a puncture needle body; the puncture needle body is provided with a depth limiting cylinder in the vertical direction, a spherical surface is provided around the outer circumference of the bottom of the depth limiting cylinder, a threaded hole is provided on the left side wall of the depth limiting cylinder, a depth locking button in the horizontal direction is installed inside the threaded hole of the depth limiting cylinder, a threaded post is provided on the right side of the depth locking button, and a rotating post with an anti-slip groove is provided on the left end face of the threaded post of the depth locking button.

[0009] Furthermore, a vertically oriented flipping locking button is installed inside the threaded hole of the flipping force block. A threaded post is provided at the bottom of the flipping locking button, and a rotating post with an anti-slip groove is provided on the top end face of the threaded post of the flipping locking button.

[0010] Furthermore, a left-right directional flipping force block is installed inside the threaded hole of the rotating closed cylinder. A regular hexagonal groove is opened on the left end face of the flipping force block, a threaded post is set at the center of the right end face of the flipping force block, and a threaded hole that runs vertically through the right side of the flipping force block is opened.

[0011] Furthermore, a rotating closed cylinder is inserted inside the puncture needle barrel in the vertical direction. A semi-cylinder is provided on the left side of the bottom end face of the rotating closed cylinder. An annular groove is opened on the outer circumference of the top of the rotating closed cylinder. A threaded hole that passes through from left to right is opened on the left side wall of the upper end of the rotating closed cylinder.

[0012] Furthermore, a left-right fixed anti-dislodgement post is installed inside the threaded hole of the puncture needle barrel. A threaded post is provided on the right side of the fixed anti-dislodgement post. A limit ring plate is provided on the outer circumference of the left end of the threaded post of the fixed anti-dislodgement post. A regular hexagonal prism is provided on the left end face of the threaded post of the fixed anti-dislodgement post.

[0013] Furthermore, a bearing ring plate is provided on the outer circumference of the upper end of the puncture needle barrel, and a threaded hole is provided on the left side wall of the bearing ring plate of the puncture needle barrel. A semi-circular groove with an arc is provided in front of the top end face of the bearing ring plate of the puncture needle barrel.

[0014] Furthermore, a vertically oriented puncture needle is inserted inside the fixed-depth limiting cylinder, and a conical head is provided at the lower end of the puncture needle. A sampling port is provided on the left side wall at the lower end of the puncture needle.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The convenient depth-limiting sleeve is placed around the outer circumference of the puncture needle barrel and locked in place by the depth-limiting locking button. This allows for convenient limitation of the insertion depth of the puncture needle barrel through the depth-limiting sleeve, solving the problem that the puncture needle does not have a depth-limiting structure, making it impossible for the head of the puncture needle to accurately reach the sampling position, and making it inconvenient to add limiting measures to the puncture needle to limit and limit the puncture depth.

[0017] The rotating sealing cylinder is conveniently inserted into the puncture needle barrel and prevented from dislodging by a fixed anti-dislodging column. The sampling port of the puncture needle barrel can be opened and closed by rotating the rotating sealing cylinder. This solves the problem that the puncture needle head is open, which can easily damage the human tissue it passes through during puncture, and it is inconvenient to add sealing measures to the puncture needle to close the puncture needle head to reach the sampling position. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0019] Figure 2This is a cross-sectional structural diagram of the present invention.

[0020] Figure 3 This is a disassembled structural diagram of the present invention.

[0021] Figure 4 This is a schematic diagram of the open state of the rotating enclosed cylinder of this utility model.

[0022] Figure 5 This is an assembly diagram of the depth limiting cylinder and depth locking button of this utility model.

[0023] Figure 6 This is an assembly diagram of the flipping force block and the flipping locking button of this utility model.

[0024] In the diagram: 1. Puncture needle body; 2. Depth limiting cylinder; 3. Depth locking button; 4. Puncture needle syringe; 5. Fixed anti-dislodgement column; 6. Rotating sealing cylinder; 7. Flipping force block; 8. Flipping locking button. Detailed Implementation

[0025] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. Example

[0026] As attached Figure 1 To be continued Figure 6 As shown:

[0027] This utility model provides a puncture needle for medical diagnosis, including a puncture needle body 1. The puncture needle body 1 is provided with a depth-limiting cylinder 2 in the vertical direction to facilitate the insertion of the puncture needle cylinder 4 to a fixed depth. The bottom outer circumference of the depth-limiting cylinder 2 is provided with a spherical surface to facilitate incision into the human body. A threaded hole is provided on the left side wall of the depth-limiting cylinder 2 to facilitate the installation of a depth-locking button 3 by thread. The depth-locking button 3 in the horizontal direction is installed inside the threaded hole of the depth-limiting cylinder 2 to facilitate the tightening of the depth-limiting cylinder 2 by the depth-locking button 3 against the puncture needle cylinder 4. A threaded post is provided on the right side of the depth-locking button 3 for easy installation by thread. The left end face of the threaded post of the depth-locking button 3 is provided with a... The rotating column of the anti-slip groove facilitates rotation and anti-slip. The fixed depth limiting cylinder 2 has a vertically inserted puncture needle cylinder 4 for easy support of various components. The lower end of the puncture needle cylinder 4 is equipped with a conical head for easy insertion into human tissue. A sampling port is opened on the lower left side wall of the puncture needle cylinder 4 for easy sampling of human tissue. A bearing ring plate is set on the upper outer circumference of the puncture needle cylinder 4 for easy support of the fixed anti-detachment column 5. A threaded hole is opened on the left side wall of the bearing ring plate of the puncture needle cylinder 4 for easy installation of the fixed anti-detachment column 5 by thread. A semi-circular groove with an arc is opened in front of the top end of the bearing ring plate of the puncture needle cylinder 4 for easy flipping and limiting of the flipping force block 7.

[0028] The puncture needle syringe 4 has a left-right oriented fixing anti-dislodgement post 5 installed inside its threaded hole to prevent the rotation of the rotating sealing cylinder 6 from dislodging. A threaded post is located on the right side of the fixing anti-dislodgement post 5 for easy threaded installation. A limit ring plate is provided on the outer circumference of the left end of the threaded post 5 for easy installation and limiting. A regular hexagonal prism is provided on the left end face of the threaded post 5 for easy rotation and disassembly using tools. A vertically oriented rotating sealing cylinder 6 is inserted inside the puncture needle syringe 4 to facilitate rotation. A semi-cylinder is provided on the left side of the bottom end face of the rotating sealing cylinder 6 to facilitate sealing the sampling port of the puncture needle syringe 4. An annular groove is provided on the outer circumference of the top of the rotating sealing cylinder 6 to facilitate the insertion of the fixing anti-dislodgement post 5 inside. A left-right groove is provided on the upper left side wall of the rotating sealing cylinder 6. The right-hand through-hole threaded hole facilitates the installation of the flip-over force-bearing block 7 via threads. The rotating closed cylinder 6 has a left-right flip-over force-bearing block 7 installed inside the threaded hole, facilitating the limiting of the rotation of the rotating closed cylinder 6. A regular hexagonal groove is provided on the left end face of the flip-over force-bearing block 7, facilitating rotation and disassembly using tools. A threaded post is provided at the center of the right end face of the flip-over force-bearing block 7, facilitating threaded installation. A vertical through-hole threaded hole is provided on the right side of the flip-over force-bearing block 7, facilitating the installation of the flip-over locking button 8 via threads. A vertical flip-over locking button 8 is installed inside the threaded hole of the flip-over force-bearing block 7, facilitating locking of the flip-over force-bearing block 7. A threaded post is provided at the bottom of the flip-over locking button 8, facilitating threaded installation. A rotating post with anti-slip grooves is provided on the top end face of the threaded post of the flip-over locking button 8, facilitating rotation and preventing slippage.

[0029] The specific usage and function of this embodiment are as follows:

[0030] In this utility model, such as Figure 1 As shown, the sampling port of the puncture needle syringe 4 is in a closed state. At this time, the semi-cylinder of the rotating sealing cylinder 6 is on the left side, as shown in the figure. Figure 2 As shown, the sampling port of the puncture needle syringe 4 is sealed by rotating the semi-cylinder of the sealing cylinder 6. The flipping force block 7 is on the left side, and it is locked by the flipping locking button 8, preventing it from flipping to the right around the axis of the sealing cylinder 6. The depth limiting cylinder 2 is locked to the outer circumference of the puncture needle syringe 4 by the depth locking button 3. When the depth limiting cylinder 2 is adjusted to the depth limit position, the depth locking button 3 is rotated to engage with the threaded engagement of the depth limiting cylinder 2, causing the depth locking button 3 to move to the left through the threaded engagement, loosening the pressure on the puncture needle syringe 4 and releasing the fixation of the depth limiting cylinder 2. Then, the depth limiting cylinder 2 is moved up and down to adjust its position. After the depth limiting cylinder 2 is adjusted, the depth locking button 3 is rotated to engage with the threaded engagement of the depth limiting cylinder 2, causing the depth locking button 3 to move to the right through the threaded engagement, thus tightening the puncture needle syringe 4. Figure 1As shown, when the sampling port of the puncture needle syringe 4 is opened, rotating the flip locking button 8 engages with the flip force block 7 via a threaded engagement. This causes the flip locking button 8 to rise and loosen its grip on the puncture needle syringe 4, releasing the flip locking button 8 from fixing the flip force block 7. The flip force block 7 then rotates the rotating closed cylinder 6 180 degrees, resulting in the following state: Figure 4 As shown, at this time, the semi-cylinder of the rotating closed cylinder 6 is on the right side, the flipping force block 7 is on the right side, and the sampling port of the puncture needle syringe 4 is in the open state. Then, rotate the flipping locking button 8 to engage with the flipping force block 7 through the thread engagement, so that the flipping locking button 8 descends through the thread engagement and presses against the puncture needle syringe 4. Thus, the flipping force block 7 is locked by the flipping locking button 8. Example

[0031] The difference from Embodiment 1 is that the regular hexagonal prism of the fixed anti-detachment column 5 can also be set as a regular heptagonal prism, so that the fixed anti-detachment column 5 can only be rotated by a special tool that cooperates with the regular heptagonal prism, thus preventing non-workers from rotating and disassembling the fixed anti-detachment column 5. Example

[0032] The difference from Embodiment 1 is that the bottom end face of the threaded post of the flip lock button 8 can also be set as a frosted surface, thereby increasing the friction between the bottom end face of the threaded post of the flip lock button 8 and the puncture needle cylinder 4, and preventing the flip lock button 8 from rotating and loosening.

Claims

1. A medical diagnostic puncture needle characterized by: The device includes a puncture needle body (1); the puncture needle body (1) is provided with a depth limiting cylinder (2), the bottom of the depth limiting cylinder (2) is surrounded by a spherical surface, the left side wall of the depth limiting cylinder (2) is provided with a threaded hole that passes through from left to right, the threaded hole of the depth limiting cylinder (2) is installed with a depth locking button (3), the right side of the depth locking button (3) is provided with a threaded post, and the left end face of the threaded post of the depth locking button (3) is provided with a rotating post with an anti-slip groove.

2. The medical diagnostic puncture needle according to claim 1, wherein: The fixed depth limiting cylinder (2) has a puncture needle cylinder (4) inserted inside. The lower end of the puncture needle cylinder (4) is provided with a conical head, and a sampling port is opened on the left side wall of the lower end of the puncture needle cylinder (4).

3. The medical diagnostic puncture needle according to claim 2, wherein: The upper outer circumference of the puncture needle cylinder (4) is provided with a bearing ring plate. A threaded hole is provided on the left side wall of the bearing ring plate of the puncture needle cylinder (4). A semi-circular groove is provided in front of the top end of the bearing ring plate of the puncture needle cylinder (4).

4. The medical diagnostic puncture needle according to claim 3, wherein: The threaded hole of the puncture needle cylinder (4) is equipped with a fixed anti-detachment column (5). A threaded column is provided on the right side of the fixed anti-detachment column (5). A limit ring plate is provided on the outer circumference of the threaded column on the left end of the fixed anti-detachment column (5). A regular hexagonal prism is provided on the left end face of the threaded column of the fixed anti-detachment column (5).

5. The medical diagnostic puncture needle according to claim 4, wherein: The puncture needle barrel (4) has a rotating closed barrel (6) inserted inside. A semi-cylinder is provided on the left side of the bottom end face of the rotating closed barrel (6). An annular groove is provided on the outer circumference of the top of the rotating closed barrel (6). A threaded hole is provided on the left and right sides of the upper left wall of the rotating closed barrel (6).

6. The medical diagnostic puncture needle according to claim 5, wherein: The rotating closed cylinder (6) has a flipping force block (7) installed inside the threaded hole. The left end face of the flipping force block (7) has a regular hexagonal groove, the center of the right end face of the flipping force block (7) has a threaded post, and the right side of the flipping force block (7) has a threaded hole that runs through from top to bottom.

7. The medical diagnostic puncture needle according to claim 6, wherein: The flipping force block (7) has a flipping locking button (8) installed inside the threaded hole. The flipping locking button (8) has a threaded post at the bottom and a rotating post with anti-slip groove on the top end face of the threaded post.

Images