A deep vein puncture needle

Abstract

The present invention belongs to the field of puncture technology, and in particular relates to a deep vein puncture needle, comprising a puncture catheter, a puncture needle, a placement tube, a blood pressure guide tube, a detection tube, and a positioning guide wire. The puncture catheter is hollow, the puncture needle is fixed below the puncture catheter and is connected thereto, the placement tube is inserted inside the puncture catheter, the blood pressure guide tube and the detection tube are respectively fixed on both sides of the puncture catheter and are connected thereto, the end of the positioning guide wire is fixedly connected to a plurality of electrode sheets, the positioning guide wire is inserted into the puncture catheter through the placement tube and passes through the puncture needle. The advantage is that the present invention can mark the location where puncture is required by using a pre-punctured positioning guide wire, and then guide the corresponding puncture needle to perform precise puncture operations, effectively improving the accuracy of the puncture and reducing the occurrence of complications.

Description

Technical Field

[0001] The invention belongs to the technical field of puncture, and in particular relates to a deep vein puncture needle. Background Art

[0002] During the puncture process, the puncture is generally performed through the subclavian vein, cephalic vein and axillary vein. Since it is necessary to avoid the artery and the apex of the lung during the puncture process, otherwise it is easy to bleed or form pneumothorax or even hemothorax, so it is necessary to accurately locate the puncture position to facilitate the puncture operation and reduce the probability of complications.

[0003] Therefore, we propose a deep vein puncture needle to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a deep vein puncture needle that can assist in accurate puncture positioning in order to solve the above problems.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a deep vein puncture needle, comprising a puncture catheter, a puncture needle, a placement tube, a blood pressure guide tube, a detection tube, and a positioning guide wire. The puncture catheter is hollow, the puncture needle is fixed below the puncture catheter and is connected thereto, the placement tube is inserted into the interior of the puncture catheter, the blood pressure guide tube and the detection tube are respectively fixed on both sides of the puncture catheter and are connected thereto, the end of the positioning guide wire is fixedly connected to a plurality of electrode sheets, the positioning guide wire is inserted into the puncture catheter through the placement tube and passes through the puncture needle.

[0006] In the above-mentioned deep vein puncture needle, a three-way valve and a blood pressure detector are fixedly connected to the blood pressure guide tube, and the three-way valve is arranged between the blood pressure detector and the puncture catheter.

[0007] In the above-mentioned deep vein puncture needle, the detection tube is provided with an angle display, and the angle display is electrically connected to the plurality of electrode sheets.

[0008] In the above-mentioned deep vein puncture needle, the plurality of electrode sheets are attached to the chest and clavicle of the human body, and a three-dimensional coordinate model is constructed by the plurality of electrode sheets.

[0009] In the above-mentioned deep vein puncture needle, the puncture needle is provided with an electrode point No. 1 and an electrode point No. 2. The electrode point No. 1 is arranged near the tip edge of the puncture needle, and the electrode point No. 2 is arranged near the end edge of the puncture needle. The electrode point No. 1 and the electrode point No. 2 are both electrically connected to multiple electrode sheets.

[0010] In the above-mentioned deep vein puncture needle, the electrode point No. 1 and the electrode point No. 2 are embedded on the side wall of the puncture needle and are electrically connected to the angle display.

[0011] In the above-mentioned deep vein puncture needle, the positioning guide wire includes multiple sections of soft columns, multiple sections of metal wires and an end. The multiple sections of soft columns and multiple sections of metal wires are arranged at intervals with each other. The end is fixedly connected to the soft columns or metal wires. The end is arranged at the tip of the whole, and a marking electrode point is provided on the end.

[0012] In the above-mentioned deep vein puncture needle, the marking electrode point is arranged at the middle position of the tip.

[0013] In the above-mentioned deep vein puncture needle, the end of the tip is fixedly connected with a guide wire.

[0014] In the above-mentioned deep vein puncture needle, a plurality of marking pieces are provided on the side wall of the guide wire. The marking pieces are arranged in an inclined structure, and the tip of the marking piece faces the end position.

[0015] Compared with existing technologies, the advantages of this deep vein puncture needle are:

[0016] The present invention achieves the goal of using the electrode sheet to construct a three-dimensional model coordinate by coordinating the positioning guide wire, electrode sheet, electrode point No. 1, and electrode point No. 2, and then effectively marks and sets the origin of the part that needs to be punctured by using the positioning guide wire, and then uses the position direction of electrode point No. 1 and electrode point No. 2 to locate and guide the direction of the required puncture, thereby effectively improving the accuracy of the puncture and reducing the occurrence of complications.

[0017] The present invention achieves the goal of using the soft column, metal wire, end, guide wire, and marking piece to coordinate the positioning guide wire composed of the soft column and metal wire, which is different from the traditional medical guide wire. It has good toughness while maintaining good plasticity, which is conducive to long-distance puncture operations. At the same time, the guide wire and marking piece can effectively mark the position of the developing area, facilitate accurate positioning, facilitate real-time position judgment, and assist the positioning guide wire in accurate puncture delivery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a deep vein puncture needle provided by the present invention;

[0019] Figure 2 This is a schematic diagram of a positioning guide wire puncture of a deep vein puncture needle provided by the present invention;

[0020] Figure 3 yes Figure 2 Schematic diagram of the connection between the positioning guide wire and the electrode sheet;

[0021] Figure 4 This is a schematic diagram of the puncture position of a deep vein puncture needle provided by the present invention;

[0022] Figure 5 yes Figure 2 Schematic diagram of the structure of the positioning guide wire;

[0023] Figure 6 yes Figure 5 Schematic diagram of the positioning guide wire.

[0024] In the figure, 1 is a puncture catheter, 2 is a puncture needle, 3 is a placement tube, 4 is a blood pressure guide tube, 5 is a detection tube, 6 is a positioning guide wire, 7 is an electrode sheet, 8 is a three-way valve, 9 is a blood pressure detector, 10 is an angle display, 11 is a No. 1 electrode point, 12 is a No. 2 electrode point, 13 is a soft column, 14 is a metal wire, 15 is a terminal, 16 is a marking electrode point, 17 is a wire, and 18 is a marking sheet. DETAILED DESCRIPTION

[0025] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Example

[0026] During the puncture process, the subclavian vein, cephalic vein and axillary vein are usually used for puncture. Since the artery and apex of the lung need to be avoided during the puncture process, otherwise it is easy to bleed or form pneumothorax or even hemothorax, etc. Therefore, it is necessary to accurately locate the puncture position to facilitate the puncture operation and reduce the probability of complications. Figure 1 As shown, this scheme designs a deep vein puncture needle, including a puncture catheter 1, a puncture needle 2, a placement tube 3, a blood pressure guide tube 4, a detection tube 5, and a positioning guide wire 6. The puncture catheter 1, the puncture needle 2, the placement tube 3, and the blood pressure guide tube 4 together constitute a complete puncture needle group. The puncture needle 2 is used for insertion operations, and the placement tube 3 is used to place the guide wire or inject medicine, etc. The blood pressure guide tube 4 is used for auxiliary measurement, and the blood pressure at the position of the puncture needle 2 is monitored through the blood pressure guide tube 4.

[0027] like Figure 1-2 As shown, the puncture catheter 1 is hollow, the puncture needle 2 is fixed below the puncture catheter 1 and is connected thereto, the placement tube 3 is inserted inside the puncture catheter 1, and the guide wire or the like can be placed into the puncture needle 2 through the placement tube 3, and then sent into the patient's vein through the puncture needle 2. At the same time, the blood pressure guide tube 4 and the detection tube 5 are respectively fixed on both sides of the puncture catheter 1 and are both connected thereto. The blood pressure guide tube 4 is used to measure blood pressure, and the detection tube 5 is used to measure the puncture angle.

[0028] Since the position after puncture cannot be accurately determined, if the artery is punctured, it will cause bleeding problems. Therefore, blood pressure can be used to measure the specific position. The blood pressure in the vein is different from the blood pressure in the artery. Therefore, a three-way valve 8 and a blood pressure detector 9 are fixedly connected to the blood pressure guide tube 4. The three-way valve 8 is arranged between the blood pressure detector 9 and the puncture catheter 1. The three-way valve 8 is used to control the on-off flow of blood. The blood pressure detector 9 can detect the pressure value of the flowing blood. At the same time, the three-way valve 8 can also be used to inject liquid medicine, etc. The three-way valve 8 is also conducive to emptying the blood in the puncture catheter 1, which is convenient for re-puncture and other operations.

[0029] like Figure 1 As shown, an angle display 10 is provided on the detection tube 5 on the right side. The angle display 10 is electrically connected to multiple electrode sheets 7 for information transmission and detection. The deviation of the position angle is displayed through the angle display 10. Multiple electrode sheets 7 are fixedly connected to the end of the positioning guide wire 6. Multiple electrode sheets 7 are attached to the chest and clavicle of the human body, and a three-dimensional coordinate model is constructed through multiple electrode sheets 7. One end of the positioning guide wire 6 enters the human body, and the other end measures and transmits data through the electrode sheet 7.

[0030] like Figure 3-4 As shown, the puncture operation of this scheme is divided into two steps. The first step is to fit multiple electrode sheets 7. The electrode sheets 7 are generally set in three groups. The three electrode sheets 7 are respectively set on the chest, clavicle, chest arm and other positions of the human body. They can be adjusted in time. The initial three-dimensional model is started through the three electrode sheets 7. Then, a group of puncture needles 2 are passed through the arm puncture site (shown) (basilic vein) to send the positioning guide wire 6 to the positioning point (shown) (subclavian vein). The position of the positioning point is the X-ray development position. At the same time, the positioning guide wire 6 is combined with the electrode sheet 7 to form a A three-dimensional model is constructed with the positioning guide wire 6 as the origin. After the construction is completed, another set of puncture needles 2 is used to insert the puncture needles 2 through the axillary puncture site (shown in the figure). The angle deviation between the puncture needle 2 and the positioning guide wire 6 as the origin is displayed on the angle display 10 through the relative position information between the puncture needle 2 itself and the electrode sheet 7. The angle value of the puncture needle 2 in the three-dimensional model is used to control the medical staff's accurate confirmation of the puncture position, and the blood pressure is measured through the blood pressure detector 9 to determine whether the location is an artery, etc., thereby completing a normal and accurate puncture operation.

[0031] Traditional guide wires are generally made of pure metal wires. The characteristics of pure metal wires are good toughness and rigidity, but their plasticity is poor, and higher materials are required to achieve good compatibility. Therefore, the pure metal wire is not suitable for the process of being delivered into the vein, and it may need to be adjusted many times to adapt to the shape of the vein. At the same time, it is more difficult to deliver it over a long distance. Figure 5-6As shown, the positioning guide wire 6 in this scheme is inserted into the puncture catheter 1 through the placement tube 3 and passed through the puncture needle 2. Specifically: the positioning guide wire 6 includes multiple sections of soft columns 13, multiple sections of metal wires 14 and an end 15. The soft columns 13 are made of medical rubber. The multiple sections of soft columns 13 and the multiple sections of metal wires 14 are both cylindrical. The multiple sections of soft columns 13 and the multiple sections of metal wires 14 are arranged at intervals from each other. The metal wire 14 has good toughness, and the soft columns 13 can be better shaped to adapt to the veins.

[0032] The positioning guide wire 6 is specifically divided into two parts, an end 15 part and a trunk part. The trunk part includes a soft column 13 or a metal wire 14. The end 15 is fixedly connected to the soft column 13 or the metal wire 14. The end 15 is set at the most advanced point of the whole body for auxiliary marking to form the origin position of the three-dimensional modeling, which is convenient for subsequent angle measurement. A marking electrode point 16 is provided on the end 15. The marking electrode point 16 is set at the middle position of the end 15. A complete three-dimensional coordinate model is established with the electrode point 16 as the origin. In order to accurately position the positioning guide wire 6 at the imaging position, a guide wire is fixedly connected to the end of the end 15. Wire 17, a plurality of marking pieces 18 are provided on the side wall of the wire 17, and the marking piece 18 is arranged in an inclined structure, and the tip of the marking piece 18 is directed toward the position of the end 15, that is, the wire 17 is used to determine the position, and the marking electrode point 16 is used to establish the origin of the three-dimensional coordinate model. The wire 17 is made of medical cotton thread. During the delivery process, since its inclination direction is opposite to that of the marking piece 18, the marking piece 18 is attached to the wire 17. After reaching the positioning position, the marking piece 18 is unfolded by reverse pulling, so that the specific position of the wire 17 can be accurately observed at the development position, and thus the positioning guide wire 6 can be accurately delivered.

[0033] like Figure 1 As shown, during the puncture process, the puncture needle 2 is provided with an electrode point No. 11 and an electrode point No. 2 12, and the electrode point No. 11 and the electrode point No. 2 12 are set on one puncture needle 2, so the two points of the electrode point No. 11 and the electrode point No. 2 12 form a straight line. Specifically: the electrode point No. 11 is set close to the tip edge of the puncture needle 2, and the electrode point No. 2 12 is set close to the end edge of the puncture needle 2. The electrode point No. 11 and the electrode point No. 2 12 are both electrically connected to the multiple electrode sheets 7, and the electrode point No. 11 and the electrode point No. 2 12 are embedded in the side wall of the puncture needle 2 and are electrically connected to the angle display 10. Therefore, after the puncture orientation formed by the electrode point No. 11 and the electrode point No. 2 12 enters the three-dimensional model, the angle of the puncture orientation formed by the electrode point No. 11 and the electrode point No. 2 12 is displayed by the angle display 10 pointing to the coordinate origin of the marked electrode point 16, thereby achieving the effect of precise puncture, and then guiding the corresponding puncture needle to perform precise puncture operation, effectively improving the accuracy of puncture and reducing the occurrence of complications.

[0034] Although this document frequently uses terms such as puncture catheter 1, puncture needle 2, placement tube 3, blood pressure guide tube 4, detection tube 5, positioning guidewire 6, electrode sheet 7, three-way valve 8, blood pressure detector 9, angle indicator 10, electrode point 11, electrode point 2 12, flexible column 13, metal wire 14, terminal 15, marker electrode point 16, guide wire 17, and marker sheet 18, the use of other terms is not excluded. These terms are used solely to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations would be contrary to the spirit of the present invention.

Claims

1. A deep vein puncture needle, characterized in that: The invention comprises a puncture catheter (1), a puncture needle (2), a placement tube (3), a blood pressure guide tube (4), a detection tube (5), and a positioning guide wire (6); the puncture catheter (1) is hollow; the puncture needle (2) is fixed below the puncture catheter (1) and is connected thereto; the placement tube (3) is inserted into the interior of the puncture catheter (1); the blood pressure guide tube (4) and the detection tube (5) are respectively fixed on both sides of the puncture catheter (1) and are connected thereto; the end of the positioning guide wire (6) is fixedly connected to a plurality of electrode sheets (7); the positioning guide wire (6) is inserted into the puncture catheter (1) through the placement tube (3) and passes through the puncture needle (2); An angle display (10) is provided on the detection tube (5), and the angle display (10) is electrically connected to a plurality of electrode sheets (7); A plurality of the electrode sheets (7) are attached to the chest and clavicle of a human body, and a three-dimensional coordinate model is constructed by using the plurality of electrode sheets (7); The puncture needle (2) is provided with a first electrode point (11) and a second electrode point (12), wherein the first electrode point (11) is arranged near the tip edge of the puncture needle (2), and the second electrode point (12) is arranged near the end edge of the puncture needle (2), and both the first electrode point (11) and the second electrode point (12) are electrically connected to a plurality of electrode sheets (7); The first electrode point (11) and the second electrode point (12) are embedded on the side wall of the puncture needle (2) and are electrically connected to the angle display (10).

2. The deep vein puncture needle according to claim 1, characterized in that: A three-way valve (8) and a blood pressure detector (9) are fixedly connected to the blood pressure guide tube (4), and the three-way valve (8) is arranged between the blood pressure detector (9) and the puncture catheter (1).

3. The deep vein puncture needle according to claim 1, characterized in that: The positioning guide wire (6) includes multiple sections of soft columns (13), multiple sections of metal wires (14), and an end (15). The multiple sections of soft columns (13) and the multiple sections of metal wires (14) are arranged at intervals from each other. The end (15) is fixedly connected to the soft columns (13) or the metal wires (14). The end (15) is arranged at the most pointed end of the whole. A marking electrode point (16) is provided on the end (15).

4. The deep vein puncture needle according to claim 3, characterized in that: The marking electrode point (16) is arranged at the middle position of the end head (15).

5. The deep vein puncture needle according to claim 3, characterized in that: A wire (17) is fixedly connected to the end of the terminal (15).

6. The deep vein puncture needle according to claim 5, characterized in that: A plurality of marking pieces (18) are provided on the side wall of the conductor (17), and the marking pieces (18) are arranged in an inclined structure, with the tips of the marking pieces (18) facing the end (15).

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