A puncture needle with a needle stabilizing mechanism

Abstract

The present invention discloses a puncture needle with a needle stabilizing mechanism, comprising a puncture needle and a needle stabilizing mechanism, wherein the needle stabilizing mechanism comprises a housing, a movable support frame, a front end fixer, a central fixing support frame, and an end fixer. The present invention has the beneficial effect of enhancing the needle stabilizing mechanism of the puncture needle and avoiding the bending of the puncture needle when the puncture needle is used clinically for puncture operation.

Description

Technical Field

[0001] The invention relates to a puncture needle with a needle stabilizing mechanism and belongs to the field of medical instruments. Background Art

[0002] Using a puncture needle to puncture the human body to obtain tissue samples is a common operation in clinical practice. When the puncture needle has a long stroke and a thin needle diameter, it is easy for the needle to bend, which can lead to puncture failure or increase the risk of puncture. For example, when performing lumbar puncture to obtain cerebrospinal fluid samples, when a No. 7 puncture needle is used, the needle diameter is 0.4mm and the length is 137mm. Due to tissue resistance and the small needle diameter, it is easy to bend, which affects the puncture operation.

[0003] Therefore, in order to solve the problem that puncture needles, especially those with thinner needle diameters and longer puncture needle strokes, are prone to bending during puncture, a puncture needle with a needle stabilizing mechanism has been invented. The puncture needle can enhance the needle stability and avoid bending of the puncture needle when the puncture needle is used clinically for puncture operations. Summary of the invention

[0004] In view of the above problems in the prior art, the present invention aims to solve the problem of providing a puncture needle with a needle stabilizing mechanism, the purpose of which is to enhance the needle stability of the puncture needle, avoid bending of the puncture needle, and facilitate clinical use.

[0005] The puncture needle with a needle stabilizing mechanism comprises a puncture needle and a needle stabilizing mechanism, and its main features are: the needle stabilizing mechanism comprises a shell, a movable support frame, a front end fixer, a central fixed support frame, and an end fixer; the front of the shell is connected to the front end fixer, the side of the shell is provided with a movable support frame slide, the shell is connected to the movable support frame through the movable support frame slide, the inside of the shell is provided with a puncture needle, a central fixed support frame, and an end fixer; the movable support frame is "L"-shaped, and its front end is provided with a hollow, through which the puncture needle can pass and fix; the front end fixer There is a bracket head fixing groove inside the device, and a hollow is provided in the center, through which the puncture needle can be passed and fixed; the front part of the central fixed bracket is the bracket head, and the center of the bracket head is provided with a hollow, through which the puncture needle can be passed and fixed, the upper and lower parts of the bracket head are respectively connected to the upper slide and the lower slide, and the ends of the upper slide and the lower slide continue to form the bracket tail; the end fixer is connected to the end of the puncture needle, and the end fixer is located inside the central fixed bracket, and the upper and lower parts of the end fixer are respectively provided with grooves, and the grooves are connected to the upper slide and the lower slide, and the end fixer can slide back and forth in the central fixed bracket through the grooves.

[0006] The puncture needle with a needle stabilizing mechanism is characterized in that the bracket head fixing groove inside the front end fixer can be connected to the bracket head of the central fixing bracket, and the shape of the bracket head fixing groove is consistent with the appearance of the bracket head.

[0007] The puncture needle with a needle stabilizing mechanism is characterized in that the central fixing bracket can slide back and forth in the shell.

[0008] The puncture needle with a needle stabilizing mechanism is characterized in that the movable support frame can slide forward and backward on the shell through the movable support frame slideway on the side of the shell.

[0009] In the present application, unless otherwise specified, the positional relationship of each component is based on the positional relationship shown in the drawings, and the devices, instruments, components, dimensions and other conditions used are well known in the art, or can be implemented by a technician in this field based on the description of the application and the prior art.

[0010] If the description of terms in the present invention is different from the previous description in the art, the description in this application shall prevail. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a front view of the present invention;

[0012] Figure 2 is a top view of the present invention;

[0013] Figure 3 is an axonometric view of the present invention;

[0014] Figure 4 is a schematic diagram of the working principle of the present invention (the end retainer slides forward);

[0015] Figure 5 It is a schematic diagram of the working principle of the present invention (the central fixed bracket slides forward);

[0016] Figure 6 is a schematic diagram of the working principle of the present invention (the end fixture is located at the front);

[0017] Figure 7 is a schematic diagram of the working principle of the present invention (the end retainer slides backward);

[0018] Figure 8 is a schematic diagram of the working principle of the present invention (the central fixed bracket slides backward);

[0019] Fig. 9 It is a schematic diagram of the working principle of the present invention (the end fixer is located at the rear);

[0020] Fig.10 It is a schematic diagram of the working principle of the present invention (the mobile support frame is located at the front);

[0021] Fig.11 It is a schematic diagram of the working principle of the present invention (the mobile support frame slides backward);

[0022] Fig.12 It is a schematic diagram of the working principle of the present invention (the mobile support frame is located at the rear);

[0023] The numbers in the figure are as follows: (1) housing; (2) puncture needle; (3) front end fixer; (4) central fixing bracket; (5) bracket tail; (6) bracket head; (7) upper slide; (8) lower slide; (9) end fixer; (10) bracket head fixing groove; (11) movable support frame; (12) movable support frame slide; (13) puncture site. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] As attached Figure 1-3 Shown is the structure of the present invention.

[0026] A puncture needle with a needle stabilizing mechanism comprises a puncture needle (2) and a needle stabilizing mechanism, and its main features are: the needle stabilizing mechanism comprises a shell (1), a front end fixer (3), a central fixing bracket (5), and an end fixer (9); the front of the shell (1) is connected to the front end fixer (3), and the shell (1) has a puncture needle (2), a central fixing bracket (4), and an end fixer (9) inside; the front end fixer (3) has a bracket head fixing groove (10) inside, and a hollow is provided in the center, so that the puncture needle (2) can pass through and be fixed; the front part of the central fixing bracket (4) is a bracket head (6), and the bracket head has a hollow in the center, The puncture needle (2) can be passed through and fixed, and the upper and lower parts of the bracket head (6) are respectively connected to the upper slide (7) and the lower slide (8), and the ends of the upper slide (7) and the lower slide (8) are continued as the bracket tail (5); the end fixer (9) is connected to the end of the puncture needle (2), and the end fixer (9) is located inside the central fixed bracket (4). The upper and lower parts of the end fixer (9) are respectively provided with grooves, and the grooves connect the upper slide (7) and the lower slide (8). The end fixer (9) can slide forward and backward in the central fixed bracket (4) through the grooves; the central fixed bracket (4) can slide forward and backward in the shell (1).

[0027] Attached Figure 4-5 The figure shows the working principle of the present invention when moving the needle.

[0028] The working principle of the puncture needle with a needle stabilizing mechanism during needle insertion is that when the end fixer (9) is pushed forward, the end fixer (9) moves forward along the upper slideway (7) and the lower slideway (8) through the upper and lower grooves, thereby driving the puncture needle (2) to move forward. At this time, the position of the central fixed bracket (4) remains unchanged; when the end fixer (9) moves to the position of the bracket head (6) of the central fixed bracket (4), the end fixer (9) continues to be pushed forward. At this time, the central fixed bracket (4) moves forward together with the end fixer (9); when the bracket head (6) of the central fixed bracket (4) moves to the bracket head fixing groove (10) inside the front end fixer (3), the needle insertion process ends.

[0029] Attached Figure 6-9 The working principle of the present invention when the needle is withdrawn is shown.

[0030] The working principle of the puncture needle with a needle stabilizing mechanism during needle withdrawal is that when the end fixer (9) is pushed backward, the end fixer (9) moves backward along the upper slideway (7) and the lower slideway (8) through the upper and lower grooves, thereby driving the puncture needle (2) to move backward. At this time, the position of the central fixed bracket (4) remains unchanged; when the end fixer (9) moves to the position of the bracket tail (5) of the central fixed bracket (4), the end fixer (9) continues to be pushed backward. At this time, the central fixed bracket (4) moves backward together with the end fixer (9); when the bracket tail (5) of the central fixed bracket (4) moves to the end of the housing (1), the needle withdrawal process ends.

[0031] Attached Figure 10-12 The figure shows the working principle of the movable support frame during needle movement of the present invention.

[0032] The working principle of the mobile support frame of the puncture needle with a needle stabilizing mechanism during needle operation is that the mobile support frame (11) is placed at the front, and after the puncture needle enters the skin (13) at the puncture site, the mobile support frame (11) moves backward on the housing (1) along the mobile support frame slideway (13) under the action of the resistance of the skin (13) at the puncture site.

[0033] The purpose of the implementation method described above is to further illustrate the specific implementation method of the present invention, and it is not to impose any limitation on the present invention. Any simple modification, change and equivalent structural change made according to the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A puncture needle with a needle stabilizing mechanism, comprising a puncture needle and a needle stabilizing mechanism, the main features of which are: the needle stabilizing mechanism comprises a shell, a movable support frame, a front end fixer, a central fixed support frame, and an end fixer; the front of the shell is connected to the front end fixer, the side of the shell is provided with a movable support frame slide, the shell is connected to the movable support frame through the movable support frame slide, the shell has a puncture needle, a central fixed support frame, and an end fixer inside; the movable support frame is "L"-shaped, and a hollow is provided at the front end to pass and fix the puncture needle; the front end fixer has a bracket head fixing groove inside, and a hollow is provided in the center to pass and fix the puncture needle; the front part of the central fixed support is the bracket head, and the bracket head has a hollow in the center to pass and fix the puncture needle By fixing the puncture needle, the upper and lower parts of the bracket head are respectively connected to the upper slide and the lower slide, and the ends of the upper slide and the lower slide continue to form the bracket tail; the end fixer is connected to the end of the puncture needle, and the end fixer is located inside the central fixed bracket. The upper and lower parts of the end fixer are respectively provided with grooves, and the grooves are connected to the upper slide and the lower slide, and the end fixer slides back and forth in the central fixed bracket through the grooves; the bracket head fixing groove inside the front end fixer can be connected to the bracket head of the central fixed bracket, and the shape of the bracket head fixing groove is consistent with the appearance of the bracket head; the central fixed bracket can slide back and forth in the shell; the movable support frame can slide back and forth on the shell through the movable support frame slide on the side of the shell.

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