Magnetic positioning trigeminal nerve compression device

Abstract

The utility model relates to the technical field of medical instruments, and discloses a magnetic positioning trigeminal nerve compression device which comprises a magnetic field generator, a patch, a probe, a puncture needle assembly and a balloon catheter assembly, the magnetic field generator is arranged on the back face of an operating table, the patch is arranged on the head of a patient, the probe is detachably connected with the patch, and the probe is detachably connected with the patch. The probe, the puncture needle assembly and the balloon catheter assembly are all provided with magnetic positioning sensors, the balloon catheter assembly penetrates into the head of a patient along the puncture needle assembly, the magnetic field generator is in communication connection with the multiple magnetic positioning sensors, and the multiple magnetic positioning sensors are all in communication connection with a host. The host is in communication connection with the terminal; according to the technical scheme, an operator can accurately place the balloon into the McLeod cavity opening, and treatment of a patient can be better guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a magnetic positioning trigeminal nerve compression device. Background Art

[0002] Trigeminal neuralgia is a very painful disease. It is mainly manifested by short-term, recurrent lightning-like severe pain in the distribution area of ​​the trigeminal nerve in the face. From the etiology, it is divided into primary trigeminal neuralgia and secondary trigeminal neuralgia.

[0003] In the relevant trigeminal nerve treatment plan, the use of balloon compression is the least traumatic, but the relevant technology cannot intuitively present the relative position of the instrument and the human body structure in three dimensions. For example, X-rays can only display a plane image in one direction with blurred boundaries. The operator needs to judge the position of the balloon based on experience, and needs to judge the shape of the balloon constrained by tissue after expansion. Misjudgment can easily cause additional harm to the patient, and continuous X-ray output can cause great harm to the operator and the patient.

[0004] The following risks usually exist during the puncture process: ① The puncture needle enters too deeply and may injure important intracranial structures and the brainstem; ② The puncture angle is too upward or outward, entering the temporal subarachnoid space or temporal lobe, which may injure the internal carotid artery; ③ The puncture angle is biased to the inside and enters the cavernous sinus, which may injure the internal carotid artery; ④ The puncture angle is biased to the inner and lower side and enters the foramen rupture, which may injure the internal carotid artery.

[0005] In terms of balloon positioning in related technologies, the balloon cannot be accurately positioned under X-rays. The balloon may be located in the medial temporal lobe subarachnoid space, the anterior brainstem subarachnoid space, or the anterior clivus epidural space. It is necessary to observe the shape of the balloon after expansion to infer the balloon. The surgeon usually makes a subjective judgment on whether the balloon is located in the area that needs expansion based on existing experience. Misjudgment can easily cause additional harm to the patient. In view of the defects of related technologies, there is an urgent need for a device that can help the surgeon accurately place the balloon into the opening of the McBurney cavity to better ensure the treatment of the patient. Utility Model Content

[0006] In view of this, the utility model provides a magnetic positioning trigeminal nerve compression device to solve the problem in the related art that the operator cannot accurately place the balloon into the opening of the McArthur cavity.

[0007] The utility model provides a magnetic positioning trigeminal nerve compression device, which comprises a magnetic field generator, a patch, a probe, a puncture needle assembly and a balloon catheter assembly. The magnetic field generator is arranged on the back of an operating table, the patch is arranged on a patient's head, the probe is detachably connected to the patch, the probe, the puncture needle assembly and the balloon catheter assembly are all provided with magnetic positioning sensors, the balloon catheter assembly penetrates into the patient's head along the puncture needle assembly, the magnetic field generator is communicatively connected to a plurality of the magnetic positioning sensors, the plurality of the magnetic positioning sensors are communicatively connected to a host, and the host is communicatively connected to a terminal.

[0008] In an optional embodiment, the patch includes a patch main body film, a patch adhesive and a patch sub-button, the patch adhesive is arranged at the bottom of the patch main body film, the patch sub-button is arranged at the top of the patch main body film, a socket is arranged on the probe, and the patch sub-button is adapted to the socket.

[0009] In an optional embodiment, the balloon catheter assembly includes a balloon, a tube body and a handle, the balloon is sleeved on the tube body, the balloon is connected to the tube body, and the tube body is connected to the handle.

[0010] In an optional embodiment, the balloon includes an inner balloon and an outer balloon, the inner balloon is located inside the outer balloon, the tube body includes at least two cavities, the inner balloon and the outer balloon are respectively sleeved on the tube body, the inner balloon and the outer balloon are respectively connected to the cavities, and a tip is provided at the end of the tube body, and the magnetic positioning sensor is provided inside the tip.

[0011] In an optional embodiment, a filling interface is provided in the handle, a conversion valve is provided on the side of the handle, the filling interface is connected to the cavity through the conversion valve, and a plug connected to the cable is provided on the handle, and the plug is located on the side of the filling interface.

[0012] In an optional embodiment, the puncture needle assembly includes a puncture needle holder, a needle core and a needle sleeve, the puncture needle holder is detachably connected to the needle core, the needle core is detachably connected to the needle sleeve, the magnetic positioning sensor is arranged inside the puncture needle holder, and a tail wire is arranged on the puncture needle holder.

[0013] In an optional embodiment, the needle core includes a needle seat and a needle, the needle seat is connected to the needle, the needle sleeve includes a connector and a needle tube, the connector is connected to the needle tube, the needle seat is provided with a groove, the connector is adapted to the groove, the puncture needle fixing seat is provided with a slot, the needle seat is provided with a protrusion, and the slot is adapted to the protrusion.

[0014] The utility model provides a magnetic positioning trigeminal nerve compression device. When the surgeon performs surgery on the patient, he first sets a plurality of patches on the patient's head, and then buckles a plurality of probes on the plurality of patches on the patient's head respectively. The magnetic field generator set on the back of the operating table sends a signal, and a plurality of magnetic positioning sensors set in the probe, the puncture needle assembly and the balloon catheter assembly receive the signal and transmit it to the host. The host obtains the relative positions of the plurality of magnetic positioning sensors in the magnetic field after processing, and transmits the relative position information to the terminal. The terminal displays the relative positions of the plurality of magnetic positioning sensors in the probe, the puncture needle assembly and the balloon catheter assembly. The surgeon observes the positions of various places on the terminal, inserts the puncture needle assembly into the patient's head and leaves a channel to reach the opening of the McBurney cavity, and then inserts the balloon catheter assembly into the patient's head along the channel and accurately places the balloon into the opening of the McBurney cavity, so as to better ensure the treatment of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of an application scenario of a magnetic positioning trigeminal nerve compression device provided by an embodiment of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a balloon catheter assembly provided by an embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the balloon provided by an embodiment of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the puncture needle assembly provided by the embodiment of the utility model when it is assembled;

[0020] Figure 5 It is a schematic diagram of the structure of the puncture needle assembly provided by the embodiment of the utility model when it is separated;

[0021] Figure 6 It is a structural schematic diagram of a puncture needle fixing seat provided in an embodiment of the utility model;

[0022] Figure 7 It is a schematic diagram of the structure of the probe and patch provided in the embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 1-Magnetic field generator;

[0025] 2-patch, 21-patch main body film, 22-patch adhesive, 23-patch buckle;

[0026] 3-probe;

[0027] 4-puncture needle assembly, 41-puncture needle fixing seat, 42-needle core, 421-needle seat, 422-needle, 43-needle sleeve, 431-connector, 432-needle tube;

[0028] 5-balloon catheter assembly, 51-balloon, 511-inner balloon, 512-outer balloon, 52-tube body, 521-cavity, 53-handle;

[0029] 6-Magnetic positioning sensor;

[0030] 7- jack;

[0031] 8- tip;

[0032] 9-Filling interface;

[0033] 10-conversion valve;

[0034] 11- Plug;

[0035] 12-tail line;

[0036] 13- groove;

[0037] 14-Card slot;

[0038] 15-Bump. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0040] Computerized X-ray tomography (abbreviated as X-CT or CT) is a device that uses x-rays to perform a cross-sectional scan of the human body. The analog signal r received by the detector is converted into a digital signal, and the attenuation coefficient of each pixel is calculated by an electronic computer. The image is then reconstructed to display the cross-sectional structure of various parts of the human body.

[0041] Magnetic Resonance Imaging (MRI) is a type of tomographic imaging that uses the magnetic resonance phenomenon to obtain electromagnetic signals from the human body and reconstruct human body information.

[0042] The magnetic positioning sensor is a magnetic sensor used for spatial positioning. It can obtain the position and posture of the magnetic positioning sensor in space. It needs to be used in conjunction with a magnetic positioning system. The magnetic positioning system consists of a magnetic field generator, a host, and a computer. The magnetic field generator generates a signal, and the magnetic positioning sensor receives the signal and transmits it to the host. After analysis, the position and posture of the magnetic positioning sensor are presented in the computer.

[0043] Magnetic positioning technology has already had mature applications in the field of cardiac electrophysiology, such as magnetic positioning ablation catheters and magnetic positioning mapping catheters, but there are relatively few reports and products used in other parts of the human body. Among the related technologies, there are positioning solutions that combine CT and magnetic positioning, but no reports have been found on its application in the cranial area.

[0044] In view of this, the utility model provides a magnetic positioning trigeminal nerve compression device to solve the above-mentioned problems existing in the related technology.

[0045] The utility model provides a magnetic positioning trigeminal nerve compression device. Figure 1 is a schematic diagram of an application scenario of a magnetic positioning trigeminal nerve compression device provided by an embodiment of the utility model, Figure 2 is a schematic structural diagram of a balloon catheter assembly provided by an embodiment of the utility model, Figure 4 is a schematic diagram of the structure of the puncture needle assembly provided by the embodiment of the utility model when it is assembled. Figure 7 Schematic diagram of the structure of the probe and patch provided by the embodiment of the utility model, such as Figure 1 , Figure 2 , Figure 4 as well as Figure 7 As shown, the device includes a magnetic field generator 1, a patch 2, a probe 3, a puncture needle assembly 4 and a balloon catheter assembly 5, wherein the magnetic field generator 1 is arranged on the back of the operating table, the patch 2 is arranged on the patient's head, the probe 3 is detachably connected to the patch 2, the probe 3, the puncture needle assembly 4 and the balloon catheter assembly 5 are all provided with a magnetic positioning sensor 6, the balloon catheter assembly 5 is inserted into the patient's head along the puncture needle assembly 4, the magnetic field generator 1 is communicatively connected to a plurality of the magnetic positioning sensors 6, the plurality of the magnetic positioning sensors 6 are communicatively connected to a host, and the host is communicatively connected to a terminal.

[0046] In the disclosed embodiment, a magnetic field generator 1 is installed on the back of the operating table near the patient's head, and a magnetic positioning sensor 6 is in the sensing area of ​​the magnetic field generator 1. After receiving the signal from the magnetic field generator 1, the magnetic positioning sensor 6 transmits the signal back to the host. The host calculates the relative position of the magnetic positioning sensor 6 in the magnetic field, i.e., the coordinates, and displays the coordinates on the terminal. The host can use a device for developing after CT or MRI scanning the human body, and the terminal can use a computer. Three or more non-collinear patches 2 are fixed on the patient's head. According to the selected scanning method, the patch 2 can be developed in CT or MRI. After scanning, the image information of the patient's head fixed with the patch 2 is obtained through computer processing. The positions of the McBurney cavity opening and the foramen ovale can be identified based on the image information. During the operation, the surgeon buckles three or more probes 3 on the patch 2 on the patient's head respectively. At this time, the probes 3 and The patch 2 overlaps, and the coordinates of the patch 2 in the magnetic positioning system can be obtained through the magnetic positioning sensor 6 in the probe 3. The operator inserts the puncture needle assembly 4 into the patient's head by observing the coordinate information displayed on the terminal. The magnetic positioning sensor 6 on the puncture needle assembly 4 can obtain the coordinates of the puncture needle assembly 4 in the magnetic positioning system. Through the coordinates of the opening of the McBurney cavity and the coordinates of the puncture needle assembly 4, the operator can accurately insert the puncture needle assembly 4 into the position of the opening of the McBurney cavity in the patient's skull. At this time, the puncture needle assembly 4 leaves a channel to the opening of the McBurney cavity in the patient's skull. The magnetic positioning sensor 6 on the balloon catheter assembly 5 can obtain the coordinates of the balloon catheter assembly 5 in the magnetic positioning system. Through the coordinates of the opening of the McBurney cavity, the coordinates of the puncture needle assembly 4 and the coordinates of the balloon catheter assembly 5, the operator can accurately insert the balloon catheter assembly 5 into the position of the opening of the McBurney cavity in the patient's skull along the channel, so as to better ensure the treatment of the patient.

[0047] In an optional embodiment, the patch 2 includes a patch main body film 21, a patch adhesive 22 and a patch sub-button 23. The patch adhesive 22 is arranged at the bottom of the patch main body film 21, the patch sub-button 23 is arranged at the top of the patch main body film 21, and a socket 7 is arranged on the probe 3, and the patch sub-button 23 is adapted to the socket 7.

[0048] In the disclosed embodiment, the patch 2 is composed of a patch main body film 21, a patch adhesive 22 and a patch buckle 23. The patch 2 can be fixed on the patient's head through the patch adhesive 22 at the bottom of the patch main body film 21. A socket 7 is provided at the bottom of the probe 3, and the socket 7 matches the patch buckle 23 at the top of the patch main body film 21. Placing the patch buckle 23 in the socket 7 can fix the probe 3 on the patch 2, so that the magnetic positioning system can calculate the coordinates of the patch 2 through the information of the magnetic positioning sensor 6 in the probe 3.

[0049] In an optional embodiment, the balloon catheter assembly 5 includes a balloon 51 , a tube body 52 and a handle 53 , wherein the balloon 51 is sleeved on the tube body 52 , the balloon 51 is connected to the tube body 52 , and the tube body 52 is connected to the handle 53 .

[0050] In the disclosed embodiment, the balloon catheter assembly 5 is composed of a balloon 51, a tube body 52 and a handle 53. The balloon 51 is sleeved on the tube body 52 at one end close to the patient, and the balloon 51 is connected to the tube body 52. ​​The balloon 51 can be inflated through the tube body 52. ​​A handle 53 is provided at the end of the tube body 52 close to the operator, and the operator can operate the balloon 51 conveniently through the handle 53.

[0051] In an optional embodiment, Figure 3 Schematic diagram of the structure of the balloon provided by the embodiment of the utility model, such as Figure 3 As shown, the balloon 51 includes an inner balloon 511 and an outer balloon 512, the inner balloon 511 is located inside the outer balloon 512, the tube body 52 includes at least two cavities 521, the inner balloon 511 and the outer balloon 512 are respectively sleeved on the cavities 521, the inner balloon 511 and the outer balloon 512 are respectively connected to the cavities 521, and a tip 8 is provided at the end of the cavity 521, and the magnetic positioning sensor 6 is provided inside the tip 8.

[0052] In the embodiment of the present disclosure, the balloon 51 can be configured as an inner balloon 511 and an outer balloon 512, the inner balloon 511 is disposed inside the outer balloon 512 at one end close to the patient, and the volume of the inner balloon 511 is smaller than that of the outer balloon 512, the tube body 52 portion can include two or more cavities 521 distributed coaxially or in parallel, the material of the tube body 52 can be metal, polymer or a composite structure of metal and polymer, the inner balloon 511 and the outer balloon 512 are respectively sleeved on the tube body 52, and the inner balloon 511 and the outer balloon 512 are respectively connected to the two cavities 521, a closed tip 8 is provided at the end of the cavity 521, a magnetic positioning sensor 6 is provided at a position near the end of one of the cavities 521 in the tip 8, the magnetic positioning sensor 6 can be used for positioning the balloon 51, after the outer balloon 512 is expanded, the inner balloon 511 can expand at the opening of the McBurney cavity, and can provide a greater expansion pressure to achieve more effective neuronal damage and play a better therapeutic effect.

[0053] In an optional embodiment, a filling interface 9 is provided in the handle 53, and a conversion valve 10 is provided on the side of the handle 53. The filling interface 9 is connected to the cavity 521 through the conversion valve 10. A plug 11 connected to the cable is provided on the handle 53, and the plug 11 is located on the side of the filling interface 9.

[0054] In the embodiment disclosed herein, the handle 53 can be hollow, a filling interface 9 is provided inside the handle 53, a rotatable conversion valve 10 is provided on the side of the handle 53, the filling interface 9 is connected to the two cavities 521 through the conversion valve 10, the filling interface 9 can be externally connected to an inflation mechanism, and air can be inflated into the conversion valve 10 through the filling interface 9. By rotating the conversion valve 10, the valves respectively connected to the two cavities 521 can be adjusted to control whether the gas flows to the inner balloon 511 and the outer balloon 512 respectively connected to the two cavities 521, so as to facilitate the control of the expansion of the inner balloon 511 and the outer balloon 512 at the opening of the McLennan cavity. A plug 11 connected to the cable is also provided in the handle 53. The plug 11 is inserted into the power supply to facilitate the output of the signal of the magnetic positioning sensor 6.

[0055] In an optional embodiment, the puncture needle assembly 4 includes a puncture needle fixing seat 41, a needle core 42 and a needle sleeve 43, the puncture needle fixing seat 41 and the needle core 42 are detachably connected, the needle core 42 and the needle sleeve 43 are detachably connected, the magnetic positioning sensor 6 is arranged inside the puncture needle fixing seat 41, and a tail line 12 is arranged on the puncture needle fixing seat 41.

[0056] In the disclosed embodiment, the puncture needle assembly 4 includes a reusable puncture needle holder 41, a needle core 42 and a needle cover 43. The puncture needle holder 41 is generally conical in shape. The needle core 42 can be removed from the puncture needle holder 41, and the needle cover 43 can also be removed from the needle core 42. The pillowcase and the needle core 42 can be combined for skin puncture. After puncturing the patient's skull to reach the opening of the McBurney cavity, the needle cover 43 can be left in the patient's skull to form a channel, which is convenient for accurately placing the balloon 51 into the opening of the McBurney cavity along the channel, and treating the patient by expanding the balloon 51. A magnetic positioning sensor 6 is embedded in the puncture needle holder 41, and is connected to the magnetic positioning system through the tail line 12 on the puncture needle holder 41, so as to obtain the position of the puncture needle holder 41 in the magnetic positioning system.

[0057] In an optional embodiment, Figure 5 is a schematic diagram of the structure of the puncture needle assembly provided by the embodiment of the utility model when it is separated. Figure 6 Schematic diagram of the structure of the puncture needle holder provided by the embodiment of the utility model. Figure 5 , Figure 6As shown, the needle core 42 includes a needle seat 421 and a needle 422, the needle seat 421 is connected to the needle 422, the needle sleeve 43 includes a joint 431 and a needle tube 432, the joint 431 is connected to the needle tube 432, the needle seat 421 is provided with a groove 13, the joint 431 is adapted to the groove 13, the puncture needle fixing seat 41 is provided with a card slot 14, the needle seat 421 is provided with a protrusion 15, the card slot 14 is adapted to the protrusion 15.

[0058] In the embodiment of the present disclosure, the needle core 42 includes a cylindrical needle seat 421 and a sharper needle 422. The needle 422 is provided at one end of the needle seat 421, and a protrusion 15 is provided at the other end of the needle seat 421. A slot 14 is provided inside the end of the puncture needle fixing seat 41 away from the tail line 12, and the slot 14 matches the protrusion 15. The needle core 42 can be fixed on the puncture needle fixing seat 41 by placing the protrusion 15 in the slot 14. The needle sleeve 43 includes a cylindrical joint 431 and a sharper needle tube 432. A groove 13 is provided at one end of the needle seat 421 close to the needle 422, and the groove 13 matches the joint 431. When the joint 431 is placed in the groove 13, the needle sleeve 43 and the needle core 42 can be combined for skin puncture. After piercing the patient's skull and reaching the opening of the McArthur cavity, the joint 431 can be separated from the groove 13, so that the needle sleeve 43 is left in the patient's skull to form a channel.

[0059] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A magnetic positioning trigeminal nerve compression device, characterized in that: The device includes a magnetic field generator, a patch, a probe, a puncture needle assembly and a balloon catheter assembly. The magnetic field generator is arranged on the back of an operating table, the patch is arranged on the patient's head, the probe is detachably connected to the patch, the probe, the puncture needle assembly and the balloon catheter assembly are all provided with magnetic positioning sensors, the balloon catheter assembly penetrates into the patient's head along the puncture needle assembly, the magnetic field generator is communicatively connected to a plurality of the magnetic positioning sensors, the plurality of the magnetic positioning sensors are communicatively connected to a host, and the host is communicatively connected to a terminal.

2. A magnetic positioning trigeminal nerve compression device according to claim 1, characterized in that: The patch includes a patch main body film, patch adhesive and patch sub-buttons, the patch adhesive is arranged at the bottom of the patch main body film, the patch sub-buttons are arranged at the top of the patch main body film, a jack is arranged on the probe, and the patch sub-button is adapted to the jack.

3. A magnetic positioning trigeminal nerve compression device according to claim 2, characterized in that: The balloon catheter assembly comprises a balloon, a tube body and a handle. The balloon is sleeved on the tube body, the balloon is connected to the tube body, and the tube body is connected to the handle.

4. A magnetic positioning trigeminal nerve compression device according to claim 3, characterized in that: The balloon includes an inner balloon and an outer balloon, the inner balloon is located inside the outer balloon, the tube body includes at least two cavities, the inner balloon and the outer balloon are respectively sleeved on the tube body, the inner balloon and the outer balloon are respectively connected to the cavities, and a tip is provided at the end of the tube body, and the magnetic positioning sensor is provided inside the tip.

5. A magnetic positioning trigeminal nerve compression device according to claim 4, characterized in that: A filling interface is provided in the handle, a conversion valve is provided on the side of the handle, the filling interface is connected with the cavity through the conversion valve, and a plug connected to the cable is provided on the handle, and the plug is located on the side of the filling interface.

6. A magnetic positioning trigeminal nerve compression device according to claim 5, characterized in that: The puncture needle assembly includes a puncture needle fixing seat, a needle core and a needle sleeve. The puncture needle fixing seat is detachably connected to the needle core, and the needle core is detachably connected to the needle sleeve. The magnetic positioning sensor is arranged inside the puncture needle fixing seat, and a tail line is arranged on the puncture needle fixing seat.

7. A magnetic positioning trigeminal nerve compression device according to claim 6, characterized in that: The needle core includes a needle seat and a needle, the needle seat is connected to the needle, the needle sleeve includes a joint and a needle tube, the joint is connected to the needle tube, the needle seat is provided with a groove, the joint is adapted to the groove, the puncture needle fixing seat is provided with a slot, the needle seat is provided with a protrusion, and the slot is adapted to the protrusion.

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