Electrode implantation auxiliary device for spinal cord electrical stimulation operation

Abstract

The utility model relates to the technical field of electrical stimulation surgeries, in particular to an electrode implantation auxiliary device for spinal cord electrical stimulation surgeries, which comprises a puncture needle, an endoscope body and a snake bone tube, the endoscope body is arranged on the puncture needle in a sliding manner, the snake bone tube is mounted at the lower end of the endoscope body, and the snake bone tube penetrates through the puncture needle. The deflector rod is operated to control the direction of the snake-bone tube, the position and the direction of the snake-bone tube are seen by combining an ultrasonic imager, so that the catheter reaches the placement position of the electrode body along the snake-bone tube, the placement direction of the electrode body is accurate, after the electrode body is placed into the guide sleeve, the air tube is curled and extends into the guide sleeve, and then the air pump is started; the air pipe is inflated and straightened to push out the electrode body along the catheter, so that the electrode body accurately reaches a specified placement position, position deviation during placement of the electrode body is prevented, and adverse effects on a patient caused by repeated placement and multiple puncture of the electrode body are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostimulation surgery, in particular to an electrode placement assistance device for spinal cord electrostimulation surgery. Background Art

[0002] Spinal cord electrostimulation (SCS): It is a new method of placing an electrode into the epidural space of the spinal canal and blocking the pain signal from being transmitted to the brain by current stimulation, thereby achieving pain management; usually, the percutaneous puncture electrode implantation method is the first choice for SCS testing.

[0003] During spinal cord electrostimulation surgery, to ensure the surgical effect, the electrode must be placed into the epidural space of the spinal canal. The epidural space of the spinal canal is filled with fat, internal vertebral venous plexus and lymphatic vessels, and the spinal nerve roots and their accompanying blood vessels pass through it, presenting a negative pressure. The spinal cord electrostimulation electrode is relatively soft, and it is difficult to control the direction when placing the electrode into the epidural space of the spinal canal. The direction can only be changed by rotating the external guide wire, which inevitably leads to repeated punctures and fluoroscopies. When the electrode placement is not ideal, or repeated placements, or multiple punctures occur, the following adverse effects are likely to occur: it is easy to increase the risk of spinal canal infection in patients, and the possibility of spinal epidural hematoma also increases; the patient's dura mater is punctured during the operation, and the patient has a headache after the operation; the material cost of spinal cord electrostimulation is relatively high, the effect is not ideal, and the economic burden on the patient is relatively large.

[0004] Therefore, it is necessary to design an electrode placement assistance device for spinal cord electrostimulation surgery. Summary of the Utility Model

[0005] In order to overcome the following adverse effects that are likely to occur when the electrode placement is not ideal, or repeated placements, or multiple punctures: it is easy to increase the risk of spinal canal infection in patients, and the possibility of spinal epidural hematoma also increases; the patient's dura mater is punctured during the operation, and the patient has a headache after the operation; the material cost of spinal cord electrostimulation is relatively high, the effect is not ideal, and the economic burden on the patient is relatively large, the utility model provides an electrode placement assistance device for spinal cord electrostimulation surgery.

[0006] The technical implementation solution of the present utility model is as follows: An electrode placement assistance device for spinal cord stimulation surgery includes a puncture needle, an endoscope body, an operation lever, and a snake bone tube. The endoscope body is slidably arranged on the puncture needle. A snake bone tube is installed at the lower end of the endoscope body. The snake bone tube passes through the puncture needle. An operation lever for controlling the direction of the snake bone tube is installed at one end of the endoscope body away from the snake bone tube. It also includes a catheter, a guide sleeve, a fixed tube, a delivery tube, a trachea, and an electrode body. A fixed tube is slidably arranged on one side of the endoscope body. One end of the fixed tube close to the endoscope body is connected to a guide sleeve. The guide sleeve passes through one side of the endoscope body and slides in the snake bone tube. One end of the guide sleeve away from the endoscope body is fixedly connected to a catheter. The catheter slides in the snake bone tube. A delivery tube is installed on one side of the fixed tube. The delivery tube is communicated with the fixed tube. One end of the delivery tube close to the endoscope body is connected and communicated with a trachea. The trachea passes through the fixed tube and is slidably connected to the guide sleeve and the catheter. An electrode body is slidably arranged in the guide sleeve. The trachea is in contact with the electrode body.

[0007] Optionally, a frustum is provided at one end of the puncture needle close to the endoscope body, and the end of the puncture needle away from the endoscope body is a bevel.

[0008] Optionally, the trachea is a pipe with a closed end and a hollow interior.

[0009] Optionally, a control button is provided. The control button is slidably arranged on the delivery tube and is used to control the opening and closing of the delivery tube.

[0010] Optionally, it further includes a handle. The handle is fixedly connected to one side of the fixed tube.

[0011] Optionally, it further includes rubber blocks. A plurality of rubber blocks are installed on the handle.

[0012] Optionally, it further includes an anti-slip ring. The anti-slip ring is sleeved outside the endoscope body.

[0013] The beneficial effects of the present utility model are as follows: The operation lever controls the direction of the snake bone tube. Combined with the ultrasonic imager to see the position and direction of the snake bone tube, the catheter is guided along the snake bone tube to the electrode body placement position, so as to accurately control the direction of the electrode body placement. After the electrode body is placed in the guide sleeve, the trachea is curled and extended into the guide sleeve, and then the air pump is started. The trachea is inflated and straightened to push the electrode body out along the catheter, so that the electrode body can accurately reach the designated placement position, preventing the electrode body from deviating during placement and avoiding the adverse effects on the patient caused by repeated placement of the electrode body and multiple punctures. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0015] Figure 2This is an exploded view of components such as the puncture needle, endoscope body, and catheter of the present utility model.

[0016] Figure 3 This is a partial cross-sectional view of components such as the endoscope body, guide sleeve, and drill electrode body of the present utility model.

[0017] Figure 4 This is an exploded view of components such as the guide sleeve, fixed tube, and delivery tube of the present utility model.

[0018] Figure 5 This is a three-dimensional structural schematic diagram of components such as the handle, air tube, and rubber block of the present utility model.

[0019] The meanings of the reference numerals in the figure: 1: puncture needle; 2: endoscope body; 201: operation lever; 202: snake bone tube; 3: catheter; 4: guide sleeve; 5: fixed tube; 6: handle; 7: control button; 8: delivery tube; 9: air tube; 10: electrode body; 11: rubber block; 12: anti-slip ring. Detailed implementation manners

[0020] The present utility model will be further described below in conjunction with the accompanying drawings and detailed implementation manners.

[0021] Embodiment: An electrode implantation assistance device for spinal cord stimulation surgery, refer to Figures 1-5As shown in the figure, it includes a puncture needle 1, an endoscope body 2, an operation lever 201, and a snake bone tube 202. The endoscope body 2 is slidably arranged on the puncture needle 1. A frustum is arranged at the upper end of the puncture needle 1, and the frustum on the puncture needle 1 is used to limit the position where the puncture needle 1 penetrates deeply. The lower end of the puncture needle 1 is beveled to facilitate the puncture needle 1 to penetrate into the patient's body. An anti-slip ring 12 is sleeved outside the endoscope body 2. When holding the endoscope body 2, the anti-slip ring 12 can increase friction and play an anti-slip role. The snake bone tube 202 is installed at the lower end of the endoscope body 2, and the snake bone tube 202 passes through the puncture needle 1. The operation lever 201 for controlling the direction of the snake bone tube 202 is installed at the upper end of the endoscope body 2. It also includes a catheter 3, a guide sleeve 4, a fixing tube 5, a delivery tube 8, a trachea 9, and an electrode body 10. The fixing tube 5 is slidably arranged on the left side of the endoscope body 2. The right side of the fixing tube 5 is connected with the guide sleeve 4. The guide sleeve 4 passes through the left side of the endoscope body 2 and slides in the snake bone tube 202. The lower end of the guide sleeve 4 is fixedly connected with the catheter 3, and the catheter 3 slides in the snake bone tube 202. The upper part of the fixing tube 5 is fixedly connected with a handle 6. By holding the handle 6 tightly, it is convenient to insert the guide sleeve 4 and the catheter 3 into the endoscope body 2. Three rubber blocks 11 are embedded and installed on the front side of the handle 6. When holding the handle 6, the rubber blocks 11 play an anti-slip role. The delivery tube 8 is installed at the rear side of the fixing tube 5, and the delivery tube 8 is communicated with the fixing tube 5. One end of the delivery tube 8 close to the endoscope body 2 is connected and communicated with the trachea 9. The trachea 9 is a PVC tube with a closed end and a hollow interior, making the trachea 9 have good flexibility and can be curled and contracted. A control button 7 is slidably arranged on the delivery tube 8, and the control button 7 is used to control the opening and closing of the delivery tube 8. The trachea 9 passes through the fixing tube 5 and is slidably connected with the guide sleeve 4 and the catheter 3. The electrode body 10 is slidably arranged in the guide sleeve 4, and the trachea 9 is in contact with the electrode body 10.

[0022] When it is necessary to place the electrode into the epidural cavity of the patient's spinal canal, connect the delivery tube 8 to the air pump. Let the patient lie on the bed in a bent lateral position, with both hands holding the knees, so as to make the lumbar vertebra convex posteriorly and the intervertebral space widen. Then, perform routine local disinfection on the patient's back. After infiltration anesthesia, insert the puncture needle 1 into the patient's back, penetrate the puncture needle 1 into the spine, and the puncture needle 1 penetrates into the epidural cavity of the spinal canal. Subsequently, pass the snake bone tube 202 through the puncture needle 1 and then into the epidural cavity of the spinal canal. Then, pass the catheter 3 and the guide sleeve 4 through the fixing tube 5 into the endoscope body 2. Subsequently, control the direction of the snake bone tube 202 by operating the lever 201. Then, start the ultrasonic imaging instrument, place the ultrasonic probe at the puncture position, so that the position and direction of the snake bone tube 202 can be seen in the ultrasonic image. Then, push the catheter 3 and the guide sleeve 4, so that the catheter 3 reaches the designated placement position of the electrode body 10 along the direction of the snake bone tube 202, thereby accurately determining the direction of placing the electrode body 10. Then, place the electrode body 10 into the guide sleeve 4, so that the electrode body 10 slides into the catheter 3 along the guide sleeve 4. Subsequently, curl the trachea 9 and extend it into the guide sleeve 4, so that the trachea 9 contacts the electrode body 10. Start the air pump, press the control button 7 to open the delivery tube 8, and gas enters the trachea 9, so that the trachea 9 is inflated and straightened to push the electrode body 10 out along the catheter 3, so that the electrode body 10 accurately reaches the designated placement position, preventing the position deviation of the electrode body 10 during placement and avoiding adverse effects on the patient during repeated placement and multiple punctures of the electrode body 10.

[0023] Although the present invention has been described in detail with reference to the above embodiments, it is obvious to those skilled in the art through the present disclosure that various changes or modifications can be made to the present invention without departing from the principle and spirit scope of the present invention defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, rather than to limit the present invention, and the scope of protection is defined by the content of the claims.

Claims

1. An electrode placement assistance device for spinal cord stimulation surgery, comprising a puncture needle (1), an endoscope body (2), an operation lever (201) and a snake bone tube (202). The endoscope body (2) is slidably arranged on the puncture needle (1). The lower end of the endoscope body (2) is equipped with a snake bone tube (202). The snake bone tube (202) passes through the puncture needle (1). An operation lever (201) for controlling the direction of the snake bone tube (202) is installed at one end of the endoscope body (2) away from the snake bone tube (202). It is characterized in that: It further includes a catheter (3), a guide sleeve (4), a fixing tube (5), a delivery tube (8), a trachea tube (9) and an electrode body (10). A fixing tube (5) is slidably arranged on one side of the endoscope body (2). One end of the fixing tube (5) close to the endoscope body (2) is connected with a guide sleeve (4). The guide sleeve (4) passes through one side of the endoscope body (2) and slides in the snake bone tube (202). One end of the guide sleeve (4) away from the endoscope body (2) is fixedly connected with a catheter (3). The catheter (3) slides in the snake bone tube (202). A delivery tube (8) is installed on one side of the fixing tube (5). The delivery tube (8) is communicated with the fixing tube (5). One end of the delivery tube (8) close to the endoscope body (2) is connected and communicated with a trachea tube (9). The trachea tube (9) passes through the fixing tube (5) and is slidably connected with the guide sleeve (4) and the catheter (3). An electrode body (10) is slidably arranged in the guide sleeve (4). The trachea tube (9) is in contact with the electrode body (10).

2. The electrode implantation assistance device for spinal cord stimulation surgery according to claim 1, wherein: One end of the puncture needle (1) close to the endoscope body (2) is provided with a frustum, and one end of the puncture needle (1) away from the endoscope body (2) is a bevel surface.

3. The electrode implantation assistance device for spinal cord stimulation surgery according to claim 2, characterized in that: The trachea tube (9) is a pipe with a closed end and a hollow interior.

4. The electrode implantation assistance device for spinal cord stimulation surgery according to claim 3, characterized in that: A control button (7), a control button (7) is slidably arranged on the delivery tube (8), and the control button (7) is used to control the opening and closing of the delivery tube (8).

5. An electrode implantation assistance device for spinal cord stimulation surgery according to claim 4, characterized in that: It further includes a handle (6), and a handle (6) is fixedly connected to one side of the fixing tube (5).

6. An electrode implantation assistance device for spinal cord stimulation surgery according to claim 5, characterized in that: It further includes rubber blocks (11), and a plurality of rubber blocks (11) are installed on the handle (6).

7. The electrode implantation assistance device for spinal cord stimulation surgery according to claim 6, characterized in that: It further includes an anti-slip ring (12), and an anti-slip ring (12) is sleeved outside the endoscope body (2).

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