An exploratory spinal cord tumor positioning and resection device

Through the design of the probe-type intraspinal tumor positioning and resection device, the problems of incomplete tumor resection and infection in the spinal cord are solved, and precise positioning and safe tumor resection are achieved, avoiding nerve veins damage.

CN118203408BActive Publication Date: 2025-08-15THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
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Patent Information

Application Number
CN202410309949.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-03-19
Publication Date
2025-08-15
Estimated Expiration
2044-03-19

AI Technical Summary

Technical Problem

In the prior art, the location of the medial spinal cord cannot be accurately positioned when the tumor in the spinal cord is removed, resulting in incomplete and inactivated tumor fragments that are easily infected with healthy areas, causing nerve veins damage and aggravation of the patient's condition.

Method used

The probe-type intra-spinal tumor positioning and resection device is adopted, including a comprehensive detection controller, electrode needle, probe-type resection tube and micro camera. Through directional exploration, the tumor is clearly observed and removed by using an electromagnetic rotation cutting blade.

Benefits of technology

Complete inactivation and removal of the tumor is achieved, reinfection of healthy areas is avoided, and the operation is completed through a smaller invasion, which reduces nerve veins and improves surgical safety and treatment effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to an exploratory spinal cord tumor positioning and resection device, which belongs to the field of medical devices and includes a comprehensive detection controller, an electrode needle and an exploratory resection tube controlled by the controller. The present invention proposes an exploratory spinal cord tumor positioning and resection device that has both the function of directional exploration into a fixed position inside the spinal cord and the function of rotational resection that can timely inactivate the tumor and then clearly and intuitively observe the tumor condition. The device accurately reaches the position of the tumor inside the spinal cord through a telescopic exploration sleeve equipped with a micro camera, and directly and clearly observes the tumor itself and the surrounding conditions. The electrode needle and electromagnetic rotating cutting blade are used to first inactivate the tumor and then completely remove it, which is conducive to achieving complete inactivation and resection to avoid reinfection of healthy parts. The entire inner resection surgery is performed through a relatively small incision to avoid causing important nerve and vascular damage, greatly improving safety and optimizing treatment effects.
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Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to an exploratory spinal cord tumor positioning and resection device. Background Art

[0002] Myeloma (also known as plasmacytoma) is a malignant tumor originating from plasma cells in the bone marrow and is a relatively common malignant tumor. It is caused by the malignant transformation of plasma cells that synthesize and secrete immunoglobulins. The proliferation of large monoclonal malignant plasma cells can easily involve soft tissues and, in late stages, can lead to widespread metastasis, most commonly in the spinal cord. Because the spine is densely populated with capillaries and neural networks, complete resection of spinal cord tumors while minimizing damage to these vital capillaries and neural networks is crucial.

[0003] The existing method for removing intramedullary tumors is to incise the pia mater along the posterior midline of the spinal cord to expose the tumor, slightly separate it to both sides, suture the pia mater with a non-damaging suture needle, retract the posterior cords on both sides, separate the interface between the tumor and the spinal cord, or at the junction of the tumor and the cavity, first free one pole of the tumor, and then separate the lateral and ventral tumors from top to bottom or from bottom to top until the entire tumor is removed.

[0004] At present, the existing technology uses a scalpel to directly cut the spinal pia mater and then explore the specific location and boundaries of the tumor for step-by-step resection. This method will first cause a large wound. During cutting, it is very easy to cut important nerve choroids due to force control problems. In addition, since most tumors are soft tissues, in addition to tumors on the outside of the spinal cord that are easily exposed by cutting, there are also tumors on the inside of the spinal cord that are blocked. The location of the tumor on the inside of the spinal cord is difficult to determine accurately, and the boundaries cannot be seen intuitively due to their location. Therefore, it is very easy for the surgical cutting position to be inaccurate and the resection to be incomplete. In addition, during resection, since the tumor has not been inactivated yet, it is very easy for the debris produced by the cutting to splash and attach to other parts to infect again, causing the patient's condition to worsen and affecting his life safety. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to propose an exploratory spinal cord tumor positioning and resection device to solve the problem that the existing technology does not have a rotating resection structure that can simultaneously have the function of directional exploration into a fixed position inside the spinal cord and the ability to inactivate the tumor in time and then clearly and intuitively observe the tumor condition, resulting in the inability to accurately locate the tumor position when resecting the spinal cord tumor, and the inability to directly and clearly observe the tumor itself and the surrounding conditions, resulting in incomplete resection and the re-infection of healthy parts by the uninactivated part and even worsening of the patient's condition, making it impossible to perform resection surgery through a smaller incision, causing important nerve and vascular damage, and causing secondary harm to the patient.

[0006] The present invention is achieved through the following technical solutions:

[0007] A probe-type spinal cord tumor positioning and resection device is characterized in that it includes a comprehensive detection controller, an electrode needle is fixedly provided on the upper end of the comprehensive detection controller, a probe-type resection tube is fixedly provided on the left side of the comprehensive detection controller, a retractable probe sleeve is fixedly provided on the upper end of the probe-type resection tube, an electromagnetic rotating cutting blade is fixedly provided on the inner side of the port of the probe-type resection tube, and an inflatable tumor suction sleeve is fixedly provided on the outer side of the port of the probe-type resection tube.

[0008] Furthermore, a power supply is fixedly provided inside the integrated detection controller, the power supply is connected to the central control chip via a line, the central control chip is connected to the control panel via a line, and the control panel is fixedly provided on the front of the integrated detection controller.

[0009] Furthermore, the motor needle is connected to the electronic generator through the ablation catheter, and the electronic generator is connected to the central control chip through a circuit.

[0010] Furthermore, the advanced resection tube includes a negative pressure adsorption tube body, the electromagnetic rotating cutting blade is fixedly rotatably arranged on the inner side of the upper port of the negative pressure adsorption tube body, the negative pressure adsorption tube body is connected to the waste residue suction machine, and the waste residue suction machine is connected to the central control chip.

[0011] Furthermore, the retractable probe sleeve includes a sleeve body, a telescopic groove is opened around the outside of the sleeve body, electric sliding blocks are slidably provided at both ends of the telescopic groove, a curled elastic steel wire is fixedly provided between the electric sliding blocks, the electric sliding block is connected to a remote control switch, the remote control switch is connected to a signal transmitter I, the central control chip is connected to a signal transceiver, and the signal transmitter I and the signal transceiver are matched.

[0012] Furthermore, the electromagnetic rotating cutting blade includes an electromagnetic coil rotating sleeve, and a cutting blade is arranged around the interior of the electromagnetic coil rotating sleeve.

[0013] Furthermore, a miniature camera is arranged around the top of the retractable probe sleeve, and a signal transmitter II is connected to the miniature camera, and the signal transmitter II is matched with the signal transceiver.

[0014] Furthermore, a micro power source is provided inside the retractable probe sleeve.

[0015] Furthermore, the bottom of the inflatable tumor suction sleeve is connected to an inflation tube, and the inflation tube is connected to the inflation pump.

[0016] The beneficial effects of the present invention are:

[0017] The present invention proposes an intraspinal tumor positioning and resection device that has both the function of targeted exploration into a fixed position inside the spinal cord and the function of rotational resection that can promptly inactivate the tumor and then clearly and intuitively observe the tumor condition. The device accurately reaches the position of the tumor inside the spinal cord through a retractable exploration sleeve equipped with a micro camera, and directly and clearly observes the tumor itself and the surrounding conditions. The electrode needle and electromagnetic rotating cutting blade are used to first inactivate the tumor and then completely remove it, which is conducive to achieving complete inactivation and resection to avoid reinfection of healthy parts. The entire inner resection surgery is performed through a smaller incision to avoid causing important nerve and vascular damage, greatly improving safety and optimizing treatment effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the overall assembly drawing;

[0019] Figure 2 This is the front view of the overall assembly;

[0020] Figure 3 It is the side view of the overall assembly;

[0021] Figure 4 This is a top view of the overall assembly;

[0022] Figure 5 This is an enlarged view of the shrink probe sleeve;

[0023] Figure 6 It is a top view of the retracted probe sleeve;

[0024] Figure 7 It is a cross-sectional view of the shrink probe sleeve;

[0025] Figure 8 This is the internal structure diagram of the comprehensive detection controller.

[0026] Description of reference numerals:

[0027] 1. Integrated detection controller; 2. Power supply; 3. Central control chip; 4. Control panel; 5. Electrode needle; 6. Ablation catheter; 7. Electronic generator; 8. Probe-type resection tube; 9. Negative pressure adsorption tube body; 10. Retractable probe sleeve; 11. Sleeve body; 12. Telescopic slot; 13. Electric sliding block; 14. Curled elastic wire; 15. Remote control switch; 16. Signal transmitter I; 17. Signal transceiver; 18. Electromagnetic rotating cutting blade; 19. Electromagnetic coil rotating sleeve body; 20. Cutting blade; 21. Waste residue suction machine; 22. Miniature camera. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0031] In the above description of the present invention, it should be noted that the terms "one side," "the other side," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0032] Furthermore, the term "identical" and similar terms do not necessarily require that the components be absolutely identical; slight variations are permitted. The term "perpendicular" simply refers to the positional relationship between components being more perpendicular than "parallel," not that the structure must be perfectly vertical; rather, it can be slightly tilted.

[0033] like Figure 1-8As shown, an embodiment of the present invention is: an exploratory spinal cord tumor positioning and resection device, comprising a comprehensive detection controller 1, a power supply 2 is fixedly arranged inside the comprehensive detection controller, the power supply is connected to the central control chip 3 through a line, the central control chip is connected to the control panel 4 through a line, the control panel is fixedly arranged on the front of the comprehensive detection controller, an electrode needle 5 is fixedly arranged on the upper end of the comprehensive detection controller, the motor needle is connected to the electron generator 7 through the ablation catheter 6, the electron generator is connected to the central control chip through a line, an exploratory resection tube 8 is fixedly arranged on the left side of the comprehensive detection controller, the exploratory resection tube includes a negative pressure adsorption tube body 9, and a retractable exploratory sleeve 10 is fixedly arranged on the outer side of the upper end of the negative pressure adsorption tube body. The probe sleeve includes a sleeve body 11, a telescopic groove 12 is opened around the outside of the sleeve body, electric sliding blocks 13 are slidably arranged at both ends of the telescopic groove, and a curled elastic steel wire 14 is fixedly arranged between the electric sliding blocks. The electric sliding block is connected to a remote control switch 15, and the remote control switch is connected to a signal transmitter I 16. The central control chip is connected to a signal transceiver 17. The signal transmitter I and the signal transceiver are matched. An electromagnetic rotating cutting blade 18 is fixedly arranged on the inner side of the upper port of the negative pressure adsorption tube body. The electromagnetic rotating cutting blade includes an electromagnetic coil rotating sleeve body 19, and a cutting blade 20 is arranged around the inside of the electromagnetic coil rotating sleeve body. The negative pressure adsorption tube body is connected to a waste residue suction machine 21, and the waste residue suction machine is connected to the central control chip. An inflatable tumor suction sleeve is fixedly provided on the outside of the port of the retractable resection tube. An inflatable tube is connected to the bottom of the inflatable tumor suction sleeve. The inflatable tube is connected to the air pump. A miniature camera is arranged around the top of the retractable retractable sleeve. The miniature camera 22 is connected to a signal transmitter II. The signal transmitter II is matched with the signal transceiver. A miniature power supply is provided inside the retractable retractable sleeve.

[0034] The usage of this embodiment during implementation is as follows: first, confirm the specific location of the tumor through CT scanning, then cut a small incision near the tumor, and then place the exploratory resection tube into the incision, and then input instructions to the control panel so that the central control chip controls the exploratory resection tube to extend into the incision and approach the tumor. The principle of the exploratory resection tube moving inside the spinal cord is to control the electric sliding block of the retractable probe sleeve to slide through the central control chip in combination with signal transmission. When the electric sliding blocks move closer to each other, the coiled elastic steel wire in the middle is compressed and curled. When the electric sliders move away from each other, the coiled elastic steel wire is stretched due to the curling, causing friction between the coiled elastic steel wire and human tissue. By using this friction force to push in the opposite direction, the retractable probe sleeve can be moved in the target direction. The sliding amplitude of different electric sliding blocks can be adjusted to change the retractable probe sleeve. The micro-camera transmits images to the control panel synchronously, so that the images in front of the moving probe resection tube can be clearly observed. When the micro-camera reaches the tumor position, the motor needle is first inserted into the position of the tumor, and then the electronic generator is controlled to generate corresponding energy to inactivate the tumor. After the inactivation is completed, the electrode needle is pulled out, and then the negative pressure adsorption tube is controlled to generate adsorption force to adsorb the inactivated tumor into the negative pressure adsorption tube body. Then the air pump is controlled to inflate so that the inflatable tumor suction sleeve expands and fits to cover the entire tumor range, thereby preventing the cut and broken tumor debris from splashing out. When the coverage is completed, an electromagnetic field is applied externally to make the electromagnetic rotating cutting blade start to rotate and cut, thereby chopping and sucking away the tumor sucked in by the negative pressure to complete the operation.

[0035] This embodiment proposes an intraspinal tumor positioning and resection device that has both the function of targeted exploration into a fixed position inside the spinal cord and the function of rotational resection that can promptly inactivate the tumor and then clearly and intuitively observe the tumor condition. The device uses a retractable probe sleeve equipped with a micro-camera to accurately reach the location of the tumor inside the spinal cord, and directly and clearly observe the tumor itself and the surrounding conditions. The electrode needle and electromagnetic rotating cutting blade are used to first inactivate the tumor and then completely remove it, which is conducive to achieving complete inactivation and resection to avoid reinfection of healthy parts. The entire inner resection surgery is performed through a relatively small incision to avoid causing important nerve and vascular damage, greatly improving safety and optimizing treatment effects.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A device for localizing and resecting spinal cord tumors, characterized in that: It includes a comprehensive detection controller, an electrode needle is fixedly provided on the upper end of the comprehensive detection controller, a probe-type resection tube is fixedly provided on the left side of the comprehensive detection controller, a retractable probe sleeve is fixedly provided on the upper end of the probe-type resection tube, an electromagnetic rotating cutting blade is fixedly provided on the inner side of the port of the probe-type resection tube, an inflatable tumor suction sleeve is fixedly provided on the outer side of the port of the probe-type resection tube, a power supply is fixedly provided inside the comprehensive detection controller, the power supply is connected to the central control chip through a line, the central control chip is connected to the control panel through a line, the control panel is fixedly provided on the front of the comprehensive detection controller, the retractable probe sleeve is fixedly provided on the upper end of the probe-type resection tube, an electromagnetic rotating cutting blade is fixedly provided on the inner side of the port of the probe-type resection tube, an inflatable tumor suction sleeve is fixedly provided on the outer side of the port of the probe-type resection tube, a power supply is fixedly provided inside the comprehensive detection controller, the power supply is connected to the central control chip through a line, the central control chip is connected to the control panel through a line, the control panel is fixedly provided on the front of the comprehensive detection controller, The sleeve includes a sleeve body, a telescopic groove is opened around the outside of the sleeve body, electric sliding blocks are slidably provided at both ends of the telescopic groove, and a curled elastic steel wire is fixedly provided between the electric sliding blocks. The electric sliding block is connected to a remote control switch, and the remote control switch is connected to a signal transmitter I. The central control chip is connected to a signal transceiver, and the signal transmitter I is matched with the signal transceiver. A miniature camera is arranged around the top of the retractable probe sleeve, and the miniature camera is connected to a signal transmitter II, and the signal transmitter II is matched with the signal transceiver. A miniature power supply is provided inside the retractable probe sleeve.

2. The device for localizing and resecting spinal cord tumors according to claim 1, characterized in that: The electrode needle is connected to the electron generator through the ablation catheter, and the electron generator is connected to the central control chip through a circuit.

3. The device for positioning and resection of spinal cord tumors according to claim 1, characterized in that: The probe-type resection tube includes a negative pressure adsorption tube body, the electromagnetic rotating cutting blade is fixedly rotatably arranged on the inner side of the upper port of the negative pressure adsorption tube body, the negative pressure adsorption tube body is connected to the waste residue suction machine, and the waste residue suction machine is connected to the central control chip.

4. The device for positioning and resection of spinal cord tumors according to claim 1, characterized in that: The electromagnetic rotating cutting blade comprises an electromagnetic coil rotating sleeve, and a cutting blade is arranged around the interior of the electromagnetic coil rotating sleeve.

5. The device for positioning and resection of spinal cord tumors according to claim 1, characterized in that: The bottom of the inflatable tumor suction sleeve is connected to a thin inflation tube, and the thin inflation tube is connected to an inflation pump.

Citation Information

Patent Citations

  • Single electrode type electric cautery with opposite electrode part in object for abscission in surgical field

    JP1997238950A

  • Systems and methods for tissue resection, ablation and aspiration

    WO1999020185A1