Plexus stimulation needle

Abstract

The present invention relates to a plexus stimulation needle. It comprises a needle tube (1), one end of the needle tube (1) is connected to a needle seat (2), and a conductor (3) in contact with the needle tube (1) is arranged in the needle seat (2); the needle seat (2) is provided with a conductive hole (21) at the position of the conductor (3), and an electrode wire (4) is provided to pass through the conductive hole (21) and contact with the conductor (3) to form an electrical connection. The electrode wire and the needle seat of the present invention adopt a separate structure, and the electrical connection between the electrode wire and the needle seat is achieved through the provided conductor, which has a simple structure and reliable contact; 2) The present invention forms a structure of an inner tube and an outer tube, and grooves of different shapes are arranged in sections of the outer tube, which makes it easier for medical staff to know the specific position of the stimulation needle than the traditional grooves of uniform shape, and the judgment is more intuitive and accurate.

Description

Technical Field

[0001] The invention relates to a nerve plexus stimulation needle and belongs to the technical field of medical devices. Background Art

[0002] At present, the localization and blockade of peripheral nerves in domestic hospitals has gradually transitioned from blind exploration to the use of plexus stimulators in conjunction with plexus detection pens and plexus stimulation needles for surface and internal localization and blockade. This method has made revolutionary progress compared to the traditional blind exploration method of human peripheral nerve localization and nerve blockade, and can obtain accurate plexus location information and satisfactory plexus blockade effect.

[0003] Existing plexus stimulation needles have the following defects: 1) The electrode wire and the needle holder are an integrated structure and cannot be disassembled from each other, which makes the structure complex, the processing cost high, and inconvenient to use; 2) The front end of the needle tube has a poor development effect, and the exact position of the needle tube entering the nerve cannot be accurately determined, which affects positioning. Summary of the invention

[0004] The present invention aims to provide a plexus stimulation needle with reasonable structure and good performance in use in view of the above-mentioned defects.

[0005] To this end, the technical solution adopted by the present invention is as follows: the present invention comprises a needle tube (1), one end of the needle tube (1) is connected to a needle seat (2), and a conductor (3) in contact with the needle tube (1) is arranged in the needle seat (2);

[0006] The needle seat (2) is provided with a conductive hole (21) at a position located on the conductor (3), and an electrode wire (4) is provided to pass through the conductive hole (21) and contact the conductor (3) to form an electrical connection.

[0007] The front end of the needle tube (1) is provided with an embossed groove structure.

[0008] The front end of the needle tube (1) is provided with grooves of different shapes in sections.

[0009] The shape of the groove can be triangle, quadrilateral, pentagon, hexagon, ellipse or circle.

[0010] The front end of the needle tube (1) forms a double-layer structure of an inner tube (11) and an outer tube (12), the inner tube (11) and the outer tube (12) form a sandwich, the outer tube (12) forms a plurality of grooves, the sandwich contains a developing medium, and the outer tube (12) is transparent.

[0011] A plurality of closed cavities are formed in the interlayer formed by the inner tube (11) and the outer tube (12), and the developing medium is placed in the cavities.

[0012] The sandwich formed by the inner tube (11) and the outer tube (12) is of a closed type.

[0013] The outer tube (12) is provided with grooves of different shapes in sections.

[0014] A needle cushion (5) is provided, and the needle cushion (5) is used for inserting the needle tube (1).

[0015] The advantages of the present invention are: 1) The electrode wire and the needle seat of the present invention adopt a separate structure, and the electrical connection between the electrode wire and the needle seat is achieved through the provided conductor, which has a simple structure, reliable contact, and good performance;

[0016] 2) The present invention forms a structural form of an inner tube and an outer tube, and grooves of different shapes are arranged in sections of the outer tube. This makes it easier for medical staff to know the specific position of the stimulation needle than the traditional grooves of uniform shape, and the judgment is more intuitive and accurate. The developing medium is arranged in the interlayer, which can ensure that the blurring of the developing effect caused by various factors such as shedding is avoided, thereby improving the accuracy of the developing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 for Figure 1 Top view of the .

[0019] Figure 3 It is a side view of the present invention.

[0020] In the figure, 1 is the needle tube, 2 is the needle seat, 3 is the conductor, 4 is the electrode wire, and 5 is the needle pad;

[0021] 11 is an inner tube, 12 is an outer tube, and 21 is a conductive hole. DETAILED DESCRIPTION

[0022] The present invention comprises a needle tube 1, one end of which is connected to a needle seat 2, and a conductor 3 is arranged in the needle seat 2 and is in contact with the needle tube 1;

[0023] The needle seat 2 is provided with a conductive hole 21 at the portion of the conductor 3 , and an electrode wire 4 is provided to pass through the conductive hole 21 and contact the conductor 3 to form an electrical connection.

[0024] The front end of the needle tube 1 is provided with an embossed groove structure.

[0025] The front end of the needle tube 1 is provided with grooves of different shapes in sections.

[0026] The shape of the groove can be triangle, quadrilateral, pentagon, hexagon, ellipse or circle.

[0027] The front end of the needle tube 1 forms a double-layer structure of an inner tube 11 and an outer tube 12. The inner tube 11 and the outer tube 12 form a sandwich. The outer tube 12 forms a plurality of grooves. The sandwich contains a developing medium. The outer tube 12 is transparent.

[0028] A plurality of closed cavities are formed in the interlayer formed by the inner tube 11 and the outer tube 12, and the developing medium is placed in the cavities.

[0029] The sandwich formed by the inner tube 11 and the outer tube 12 is a closed type.

[0030] The outer tube 12 is provided with grooves of different shapes in sections.

[0031] A needle cushion 5 is provided, and the needle cushion 5 is used for inserting the needle tube 1 .

[0032] The working principle of the present invention is that the needle tube 1 is inserted into the needle seat 2 and contacts the conductor 3 arranged in the needle seat 2. At this time, the electrode wire 4 passes through the conductive hole 21 and contacts the conductor 3, so that the electrode wire 4 and the needle tube 1 are electrically connected through the conductor 3.

[0033] The outer tube 12 of the present invention is divided into sections to form grooves of different shapes and forms, and is developed by a developing medium arranged in the interlayer. The developing effect is accurate and intuitive, and the outer tube 12 has good use performance.

[0034] In the present invention, an ultra-thin insulation-resistant coating can be applied on the surface of the needle tube 1 .

[0035] The present invention is further provided with a needle pad 5, and the needle pad 5 allows the needle tip of the needle tube 1 to penetrate, so that the needle tube 1 can be inserted into the needle pad 5 after the stimulation needle is used, thereby forming an effective protection for the stimulation needle.

Claims

1. A plexus stimulation needle, characterized in that: It comprises a needle tube (1), one end of the needle tube (1) is connected to a needle seat (2), and a conductor (3) is arranged in the needle seat (2) and is in contact with the needle tube (1); The needle seat (2) is provided with a conductive hole (21) at a position located on the conductive body (3), and an electrode wire (4) is provided to pass through the conductive hole (21) and contact the conductive body (3) to form an electrical connection; The front end of the needle tube (1) forms a double-layer structure of an inner tube (11) and an outer tube (12), the inner tube (11) and the outer tube (12) form a sandwich, the outer tube (12) forms a plurality of grooves, the sandwich contains a developing medium, and the outer tube (12) is transparent; the sandwich formed by the inner tube (11) and the outer tube (12) is a closed type; The front end of the needle tube (1) is provided with an embossed groove structure; The front end of the needle tube (1) is provided with grooves of different shapes in sections; A plurality of closed cavities are formed in the interlayer formed by the inner tube (11) and the outer tube (12), and the developing medium is placed in the cavities; The outer tube (12) is provided with grooves of different shapes in sections along the axial direction.

2. The plexus stimulation needle according to claim 1, characterized in that: The shape of the groove can be triangle, quadrilateral, pentagon, hexagon, ellipse or circle.

3. The plexus stimulation needle according to claim 1, characterized in that: A needle cushion (5) is provided, and the needle cushion (5) is used for inserting the needle tube (1).

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