Arc-shaped puncture device and method of using the same

Abstract

An arc puncture device and a method of using the same, comprising an arc puncture needle, an arc puncture needle guide tube and a guide tube positioning frame. The arc puncture needle body is in an arc shape and matches the arc puncture needle guide tube so that the arc puncture needle can freely shuttle along the arc in the guide tube. A positioning support point is provided on the guide tube so that the guide tube can be fixed to the positioning frame. The positioning frame can be fixed to a specific position of the human body and a plurality of positioning points are provided on the positioning frame so that the guide tube can be positioned at different positions and angles.

Description

Technical Field

[0001] The invention belongs to the field of medical equipment, and in particular relates to an arc-shaped puncture device and a use method thereof. Background Art

[0002] When substantial diseases occur in the internal organs of the human body, especially tumors, in order to clarify the pathology or to directly ablate the lesions, puncture is used. The commonly used method is to scan the human body with tomographic imaging equipment such as magnetic resonance or CT to determine the location and depth of the lesion and the skin needle insertion point, and to perform precise puncture in the tomographic plane where the lesion is located. However, traditional positioning puncture is limited by the straight shape of the puncture needle, and can only choose a straight path for puncture. If there is a tissue that is not suitable for puncture on a certain straight path, such as a tumor that is prone to bleeding, the interlobar fissure of the lungs, and bones such as scapula ribs, etc., the puncture path can only be abandoned, and a longer distance or more difficult angle can be selected for puncture. What's more serious is that some patients have no other suitable puncture paths and can only give up treatment. At this time, a curved puncture needle kit that is simple to operate and similar to the traditional straight puncture needle is needed. It can bypass the tissue that needs to be avoided and puncture the target site by inserting the needle in an arc. Summary of the invention

[0003] In view of the above-mentioned prior art, the purpose of the present invention is to provide an arc-shaped puncture device and a method of using the same.

[0004] The technical solution of the present invention is implemented as follows: an arc puncture device includes an arc puncture needle, an arc puncture needle guide tube and a guide tube positioning frame. The arc puncture needle body is in an arc shape and matches the arc puncture needle guide tube so that the arc puncture needle can shuttle freely along the arc in the guide tube. A positioning support point is provided on the guide tube so that the guide tube can be fixed to the positioning frame. The positioning frame can be fixed to a specific position on the human body and a plurality of positioning points are provided on the positioning frame to position the guide tube to different positions and angles.

[0005] The beneficial effect of this design is that it can bypass special positions to complete the puncture and ensure biopsy in a specific environment. In addition to the above puncture functions, in actual applications, some puncture patients cannot choose the best body position for traditional puncture due to various reasons, such as lying flat, prone or sideways. At this time, the arc puncture device can be used to greatly reduce the requirements for the patient's body position during puncture.

[0006] Furthermore, the positioning frame is provided with a slide rail, the slide rail is provided with a slider that can move and position along the slide rail, and the slider is provided with a positioning support point so that the guide tube can be positioned to different positions along the slide rail, so that more precise positioning can be achieved.

[0007] Furthermore, the arc-shaped puncture device is provided with an arc-shaped cutting knife, the cutting knife head is a flat sheet-shaped knife head, the knife head head is a sharp angle gradually transitioning to a flat gradually widening blade body and finally gradually transitioning to a cylindrical blade tail, the outer perimeter of the blade tail is slightly smaller than the outer perimeter of the blade body, so that after the knife tip cuts the puncture site, the blade body and the blade tail can smoothly follow the knife tip into the puncture site, and the blade tail is connected to the arc-shaped handle. This design makes the wound easier to heal.

[0008] Furthermore, the arc-shaped puncture device is provided with an arc-shaped airbag guide head. The head of the airbag guide head is conical and its outer contour is the same size as the guide tube in the inflated state. The head of the airbag guide head is connected to the inflation bag through the trachea so that the inflation bag can inflate and deflate the head of the airbag guide head, thereby better placing the guide tube.

[0009] Furthermore, the positioning support point on the arc-shaped guide tube coincides with the arc center of the guide tube and the positioning support point can be hinged to the positioning frame. A hinge axis is provided at the arc center of the arc-shaped tool handle which can be hinged to the positioning frame. The arc radius of the arc-shaped tool handle is the same as the arc radius of the guide tube, so that the guide tube and the arc-shaped cutting knife are interchangeable and can be hinged to the positioning frame at the same position. This design positioning is more stable.

[0010] A method for using an arc puncture device, firstly, scan the human body with a tomographic imaging device such as magnetic resonance or CT to determine the position and depth of the lesion and the skin needle insertion point; secondly, fix the positioning frame at a specific position of the human body and scan and calculate with a tomographic imaging device such as magnetic resonance or CT to confirm whether the positioning position can ensure that the puncture needle can reach the specified position; then install the arc cutting knife on the positioning frame and rotate around the positioning frame to use the knife tip to cut the human body so that a flat channel is formed from the lesion to the skin surface; then take out the cutting knife and place the arc airbag guide head in the guide tube, inflate it, fix the guide tube on the positioning frame, place the guide tube into the flat channel through the guide head, release the gas in the airbag and take the guide head out of the guide tube; finally, insert the arc puncture needle to perform a biopsy. The advantage of this design is that flat wounds are easier to heal, which provides good protection for weak patients and makes it easier for patients to recover. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a diagram of the use state of an arc-shaped puncture device of the present invention;

[0012] Figure 2 This is a schematic diagram of a puncture needle of an arc-shaped puncture device of the present invention;

[0013] Figure 3 This is a schematic diagram of a guide tube of an arc-shaped puncture device of the present invention;

[0014] Figure 4 This is a schematic diagram of a positioning frame of an arc-shaped puncture device of the present invention;

[0015] Figure 5 A schematic diagram of a cutting knife of an arc-shaped puncture device of the present invention;

[0016] Figure 6 This is a schematic diagram of an airbag guide head of an arc-shaped puncture device of the present invention;

[0017] Figure 7 This is a schematic diagram of the use of a puncture needle of an arc-shaped puncture device of the present invention;

[0018] Figure 8 This is a schematic diagram of the use status of an airbag guide head of an arc-shaped puncture device of the present invention. DETAILED DESCRIPTION

[0019] As required, detailed embodiments of the present invention are disclosed herein, but it should be understood that the disclosed embodiments are merely exemplary of the present invention, and the present invention may be implemented in different and alternative forms. The accompanying drawings may not be drawn to scale, and certain features may be exaggerated or reduced to show the details of specific components. Therefore, the specific structural and functional details disclosed herein should not be understood as having a limiting meaning, but only as a representative basis to teach those skilled in the art to adopt the present invention differently. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention.

[0020] like Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8As shown, an arc puncture device includes an arc puncture needle 1, an arc-shaped guide tube 2 of the arc puncture needle 1, and a positioning frame 3 of the guide tube 2. The arc puncture needle 1 has an arc-shaped body that matches the arc-shaped arc puncture needle 1 guide tube 2 so that the arc puncture needle 1 can freely shuttle along the arc in the guide tube 2. The guide tube 2 is provided with a positioning support point 4 so that the guide tube 2 can be fixed to the positioning frame 3. The positioning frame 3 is provided with multiple suction cups 5 that can be fixed to a specific position on the human body and the positioning frame 3 is provided with multiple positioning points 6 that can position the guide tube 2 to different positions and angles. The positioning frame 3 is provided with a slide rail 7, and the slide rail 7 is provided with a slider 8 that can move and position along the slide rail 7 and has a positioning support point on the slider 8 so that the guide tube 2 can be positioned to different positions along the slide rail 7. The arc-shaped puncture device is provided with an arc-shaped cutting knife 9, the head of the cutting knife 9 is a flat sheet-shaped blade head 10, the blade head 10 is a sharp corner gradually transitioning to a flat and gradually widening blade body 11 and finally gradually transitioning to a cylindrical blade tail 12, the outer perimeter of the blade tail 12 is slightly smaller than the outer perimeter of the blade body 11, so that after the blade tip cuts the puncture site, the blade body 11 and the blade tail 12 can smoothly follow the blade head 10 into the blade, and the blade tail is connected to the arc-shaped handle 13. The arc-shaped puncture device is provided with an arc-shaped airbag guide head 14, the head of the airbag guide head is conical, and the outer contour is the same size as the guide tube 2 in the inflated state, and the head of the airbag guide head 14 is connected to the inflatable bag through the trachea 16 so that the inflatable bag 15 can inflate and deflate the head of the airbag guide head 14. The positioning support point 4 on the arc-shaped guide tube 2 coincides with the arc center of the guide tube 2 and the positioning support point 4 can be hinged to the positioning frame 3. The arc center 17 of the arc-shaped tool handle 13 is provided with a hinge axis which can be hinged to the positioning frame 3. The arc radius of the arc-shaped tool handle 13 is the same as the arc radius of the guide tube 2, so that the guide tube 2 and the arc-shaped cutting knife 9 are interchangeable and can be hinged to the positioning frame 3 at the same position.

[0021] like Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8As shown, a method for using an arcuate puncture device comprises the following steps: firstly, scanning a human body with a MRI or CT or other tomographic imaging device to determine the position and depth of the lesion and the needle insertion point on the skin; secondly, fixing a positioning frame 3 at a specific position of the human body and scanning and calculating with a MRI or CT or other tomographic imaging device to confirm whether the positioning position can ensure that the puncture needle can reach the designated position; thirdly, installing an arcuate cutting knife 9 on the positioning frame 3 and rotating it around the positioning frame 3 to use the tip of the knife to cut the human body so that a flat channel is formed from the lesion to the skin surface; then, taking out the cutting knife 9 and placing an arcuate airbag guide head 14 in a guide tube 2 and inflating it, then fixing the guide tube 2 on the positioning frame 3, inserting the guide tube 2 into the flat channel through the guide head, releasing the gas in the airbag and taking out the guide head 14 from the guide tube 2; finally, inserting the arcuate puncture needle 1 to perform a biopsy.

Claims

1. An arc-shaped puncture device, characterized in that: The invention comprises an arc puncture needle (1), an arc-shaped guide tube (2) for the arc puncture needle (1), and a positioning frame (3) for the guide tube (2); the arc puncture needle (1) main body is in an arc shape and matches the arc-shaped guide tube (2) for the arc puncture needle (1), so that the arc puncture needle (1) can freely shuttle along the arc in the guide tube (2); a positioning support point (4) is provided on the guide tube (2) so that the guide tube (2) can be fixed to the positioning frame (3); the positioning frame (3) is provided with a plurality of suction cups (5) so that it can be fixed to a specific position of the human body; and the positioning frame (3) is provided with a plurality of positioning points (6) so that the guide tube (2) can be positioned at different positions and angles.

2. The arc puncture device according to claim 1, characterized in that: The positioning frame (3) is provided with a slide rail (7), the slide rail (7) is provided with a slider (8) that can move and position along the slide rail (7), and a positioning support point is provided on the slider (8) so that the guide tube (2) can be positioned at different positions along the slide rail (7).

3. The arc puncture device according to claim 1 or 2, characterized in that: The arc-shaped puncture device is provided with an arc-shaped cutting knife (9), the head of the cutting knife (9) is a flat sheet-shaped knife head (10), the head of the sheet-shaped knife head (10) is a sharp corner that gradually transitions to a flat and gradually widened blade body (11) and finally gradually transitions to a cylindrical blade tail (12), the outer circumference of the blade tail (12) is slightly smaller than the outer circumference of the blade body (11), so that after the blade tip cuts the puncture site, the blade body (11) and the blade tail (12) can smoothly follow the blade head (10) into the puncture site, and the blade tail is connected to the arc-shaped knife handle (13).

4. The arc puncture device according to claim 3, characterized in that: The arc-shaped puncture device is provided with an arc-shaped airbag guide head (14); the head of the airbag guide head is conical and has an outer contour of the same size as the guide tube (2) in the inflated state; the head of the airbag guide head (14) is connected to the inflatable bag via an air tube (16) so that the inflatable bag (15) can inflate and deflate the head of the airbag guide head (14).

5. The arc puncture device according to claim 4, characterized in that: The positioning support point (4) on the arc-shaped guide tube (2) coincides with the arc center of the guide tube (2) and the positioning support point (4) can be hinged to the positioning frame (3). The arc center (17) of the arc-shaped knife handle (13) is provided with a hinge axis which can be hinged to the positioning frame (3). The arc radius of the arc-shaped knife handle (13) is the same as the arc radius of the guide tube (2), so that the guide tube (2) and the arc-shaped cutting knife (9) are interchangeable and can be hinged to the positioning frame (3) at the same position.

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