Minimally invasive soft tissue sheath knife

Abstract

The invention discloses a soft tissue minimally invasive sheath knife, and belongs to the technical field of medical instruments. The soft tissue minimally invasive sheath knife comprises an outer sheath and a knife core arranged in the outer sheath in a sleeved mode, and the outer sheath and the knife core are magnetically attracted. The cutter core is of a solid structure and comprises a cutter handle, a cutter bar and a cutter head which are integrally formed, a magnetic suction connector is arranged on the cutter handle, and the cutter head is of a wedge-shaped structure with the round and smooth periphery. The outer sheath is of a hollow structure and comprises a sheath handle, a sheath rod and a sheath head which are integrally formed, the sheath handle is provided with a magnetic attraction connecting groove, a flow inlet part, a flow outlet part and a working bin, the magnetic attraction connecting head is inserted into the magnetic attraction connecting groove, the sheath head is of a wedge-shaped structure with the round and smooth periphery, a through hole is formed in the sheath head, and an endoscope assembly is arranged on the inner wall of the through hole. A wire harness layer is arranged on the inner wall of the sheath rod, one end of the wire harness layer extends to the endoscope assembly, and the other end extends to the working bin. The soft tissue minimally invasive sheath knife can accurately reach a diseased region for operation, surrounding tissues are prevented from being damaged, and the accuracy and scientificity of diagnosis are improved.

Description

Technical Field

[0001] The present application relates to a soft tissue minimally invasive sheath knife, belonging to the technical field of medical devices. Background Art

[0002] Traditional Chinese medicine believes that soft tissue injury comes from the imbalance of the human body's dynamic balance. The human body itself is composed of various tissues, which will maintain balance in a specific time and space. Although it is free to move, it does not exceed this range and is in a state of overall balance. If it is outside the range, it is an imbalance, also known as dynamic balance disorder. At this time, the body undergoes pathological changes, and the pathogenic factors are four categories: adhesion, contracture, scar and blockage.

[0003] Traditional Chinese medicine often uses massage, acupuncture, and cupping to treat soft tissue degeneration and injury; Western medicine often uses local blockade and other methods. On the one hand, the treatment time is long, and on the other hand, for those with tissue adhesion and scar formation, it is not easy to fundamentally loosen the contracted tissue, so patients often show repeated attacks and are difficult to cure. For severe cases, Western medicine uses open surgical release or excision methods, which have larger wounds, severe pain for patients, and high medical expenses.

[0004] The emergence of acupotomy breaks through the limitations of needles. It can not only apply the principles of acupuncture for treatment, but also play the role of a knife, and at the same time further expand the application of the knife. However, the existing acupotomy is usually performed under blind vision. The feeling during the operation is an extremely important indicator of the operation method. It not only puts forward extremely high requirements on the operator, but also requires a higher degree of cooperation between doctors and patients. Summary of the invention

[0005] In order to solve the above problems, the present application proposes a soft tissue minimally invasive sheath knife, which can accurately reach the lesion site for treatment, avoid damaging surrounding tissues, and improve the accuracy and scientificity of diagnosis.

[0006] The present invention provides the following technical solutions:

[0007] A soft tissue minimally invasive sheath knife, comprising an outer sheath and a knife core sleeved in the outer sheath, wherein the outer sheath and the knife core are magnetically attracted;

[0008] The knife core is a solid structure, and the knife core includes an integrally formed knife handle, a knife rod and a knife head. The knife handle is provided with a magnetic connector, and the knife head is a wedge-shaped structure with a round and smooth outer circumference;

[0009] The outer sheath is a hollow structure, and the outer sheath includes an integrally formed sheath handle, a sheath rod and a sheath head. The sheath handle is provided with a magnetic connection groove, an inlet portion, an outlet portion and a working chamber. The magnetic connection head is plugged into the magnetic connection groove. The sheath head is a wedge-shaped structure with a smooth outer circumference. A through hole is provided on the sheath head, and an endoscope assembly is provided on the inner wall of the through hole. A wiring harness layer is provided on the inner wall of the sheath rod, and one end of the wiring harness layer extends to the endoscope assembly, and the other end extends to the working chamber.

[0010] Optionally, the through hole includes a first channel and a second channel, and the first channel and the second channel are alternately arranged around the sheath head.

[0011] Optionally, the endoscope assembly includes a light source and a camera, both of which are connected to the working chamber via a wiring harness, the light source is embedded in the first channel, and the camera is embedded in the second channel.

[0012] Optionally, both the first hole and the second hole are provided with embedding grooves, and the light source and the camera are embedded in the embedding grooves.

[0013] Optionally, a threading hole is provided in the embedding groove, and the threading hole extends from one end of the embedding groove to between the inner wall of the sheath head and the wiring harness layer.

[0014] Optionally, the inlet part and the outlet part are relatively arranged on both sides of the sheath handle, the outlet part includes a liquid outlet pipe and a liquid outlet valve, the liquid outlet valve is installed on the liquid outlet pipe, and the inlet part includes a liquid inlet pipe, a liquid inlet valve and an air inlet pipe, and the liquid inlet valve and the air inlet pipe are installed on the liquid inlet pipe.

[0015] Optionally, the air inlet pipe is located between the liquid inlet valve and the sheath handle, and the air inlet pipe is communicated with the liquid inlet pipe.

[0016] Optionally, a blocking cap is provided at one end of the air inlet pipe away from the liquid inlet pipe.

[0017] Optionally, the working chamber is connected around the sheath handle, a charging port is provided at one end of the working chamber away from the sheath handle, and an opening and closing door is provided on the working chamber.

[0018] Optionally, a wire groove is provided between the wire harness layer and the inner wall of the sheath rod.

[0019] The beneficial effects of this application include but are not limited to:

[0020] 1. The soft tissue minimally invasive sheath knife provided in this application can accurately reach the lesion site, separate the adhesion of fascia, loosen the tendon, change the circulation of surrounding tissues, and avoid damaging surrounding tissues, thereby reducing operation requirements; because the human body has self-compensatory repair capabilities, it can promote the absorption of aseptic inflammation, and improve and eliminate local inflammation, so that the body can recover quickly under the simultaneous action of itself and treatment, thereby alleviating the patient's pain.

[0021] 2. The soft tissue minimally invasive sheath knife provided in the present application has a magnetically attracted outer sheath and a knife core, and the connection structure is stable and reliable, reducing the surgical risks caused by loosening or falling off; wherein, the setting of the knife core increases the rigidity and strength of the sheath knife, making it less likely to bend or break during use; the outer sheath can be used alone in closed surgery or in combination with the knife core, with a wider range of applications; both the knife head and the sheath head are wedge-shaped structures with rounded and smooth outer circumferences, which not only facilitates blunt separation of the lesion, but also reduces the occurrence of iatrogenic injuries during surgery and improves the safety of the operation; by setting an endoscope assembly, it is easy to accurately find the lesion tissue and perform blunt separation on it, reducing secondary injuries; the setting of the harness layer can protect the connecting harness, preventing the endoscope assembly and the connection structure between it and the working chamber from affecting the surgical process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 It is a structural schematic diagram of a soft tissue minimally invasive sheath knife involved in an embodiment of the present application;

[0024] Figure 2 This is a schematic diagram of the structure of the outer sheath involved in the embodiment of the present application;

[0025] Figure 3 It is a schematic diagram of the structure of the knife core involved in the embodiment of the present application;

[0026] Figure 4 It is a partial side cross-sectional schematic diagram of the outer sheath involved in the embodiment of the present application;

[0027] Figure 5 It is a side cross-sectional schematic diagram of the sheath head involved in the embodiment of the present application;

[0028] Figure 6 A side cross-sectional schematic diagram of an embedding groove involved in an embodiment of the present application;

[0029] List of parts and reference numerals:

[0030] 1. Outer sheath, 2. Blade core, 3. Magnetic connector, 4. Magnetic connecting slot, 5. Working chamber, 6. First channel, 7. Second channel, 8. Light source, 9. Camera, 10. Embedding slot, 11. Threading hole, 12. Liquid outlet pipe, 13. Liquid outlet valve, 14. Liquid inlet pipe, 15. Liquid inlet valve, 16. Air inlet pipe, 17. Sealing cap, 18. Charging port, 19. Opening and closing door, 20. Wiring layer, 21. Wire slot. DETAILED DESCRIPTION

[0031] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0032] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0034] In addition, in the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0038] Reference Figures 1 to 6 , introduce the soft tissue minimally invasive sheath knife according to the present application.

[0039] Reference Figures 1 to 4 According to the soft tissue minimally invasive sheath knife of this embodiment, it includes an outer sheath 1 and a knife core 2 sleeved in the outer sheath 1. The outer sheath 1 and the knife core 2 are magnetically attracted, and the connection structure is stable and reliable, which reduces the surgical risk caused by loosening or falling off.

[0040] The knife core 2 is a solid structure, which increases the rigidity and strength of the sheath knife, making it less likely to bend or break during use; the knife core 2 includes an integrally formed knife handle, a knife rod and a knife head, and a magnetic connector 3 is provided on the knife handle for magnetically engaging with the outer sheath 1, and the knife head is a wedge-shaped structure with a rounded and smooth outer circumference, so as to perform blunt separation of the lesion, while reducing the occurrence of iatrogenic injuries during surgery and improving the safety of surgery;

[0041] The outer sheath 1 is a hollow structure, which can be used alone in closed surgery or in combination with the knife core 2, and has a wider range of applications; the outer sheath 1 includes an integrally formed sheath handle, a sheath rod and a sheath head, and the sheath handle is provided with a magnetic connection groove 4, an inlet portion, an outlet portion and a working chamber 5, and the magnetic connection head 3 is plugged into the magnetic connection groove 4, which can not only firmly connect the knife core 2 and the outer sheath 1, but also limit the knife core 2 from rotating freely in the outer sheath 1, which is convenient for intraoperative operation; the sheath head is a wedge-shaped structure with a smooth outer periphery, which can be used for lesion sites Blunt separation is performed and the incidence of injuries and complications is reduced; a through hole is arranged on the sheath head to facilitate medication, flushing and removal of surgical aspirates; an endoscope assembly is arranged on the inner wall of the through hole to facilitate accurate finding of diseased tissue and blunt separation thereof to reduce secondary injuries; a harness layer 20 is arranged on the inner wall of the sheath rod, one end of the harness layer 20 extends to the endoscope assembly and the other end extends to the working chamber 5, which can not only protect the connecting harness, but also prevent the endoscope assembly and the connection structure between it and the working chamber 5 from affecting the surgical process.

[0042] This soft tissue minimally invasive sheath knife can separate adhered fascia, loosen tendons, and change the circulation of surrounding tissues. The human body has self-compensatory repair capabilities, which can promote the absorption of aseptic inflammation and improve and eliminate local inflammation, allowing the body to recover quickly under the simultaneous effects of itself and treatment.

[0043] As an embodiment, the through hole includes a first channel 6 and a second channel 7, and the first channel 6 and the second channel 7 are alternately arranged around the sheath head, which not only has a good drainage effect, so that the drugs, gases and flushing fluids are more evenly distributed in the surgical area, and the blood, tissue fluid, etc. generated during the operation are discharged more smoothly, but also the surgical area can be observed from different angles through the endoscope assembly, which helps the doctor to fully understand the situation of the operation and improve the accuracy and safety of the operation.

[0044] For example, the drug mentioned above is a blocking fluid. Injecting the blocking fluid into the surgical area can block the vicious cycle caused by local blood circulation disorders caused by sympathetic nerve excitation, improve tissue nutritional status, accelerate metabolism to excrete harmful substances, and enhance tissue anti-inflammatory ability.

[0045] For example, the gas mentioned above is ozone. Injecting medical ozone into the surgical area can inhibit the release of inflammatory factors, dilate blood vessels, relieve redness and swelling, and has a strong analgesic effect. Therefore, it can be used in combination with the soft tissue minimally invasive sheath knife in this application to achieve the purpose of enhancing the therapeutic effect.

[0046] It should be understood that the present application does not limit the drugs and gases involved in closed surgery.

[0047] Further, refer to Figure 5The endoscope assembly includes a light source 8 and a camera 9, both of which are connected to the working chamber 5 through a wiring harness, with a compact structure, reducing the use of external connectors, improving the integration and stability of the sheath knife, and the connection method of the wiring harness also facilitates electrical isolation and protection, further improving the safety of the operation; the light source 8 is embedded in the first channel 6, and the camera 9 is embedded in the second channel 7, so as to provide stable and sufficient lighting for the camera 9, ensuring that the camera 9 can capture clear and accurate images, thereby helping to improve the efficiency and accuracy of the operation.

[0048] In the present application, the light source 8 is an LED lamp, a xenon lamp light source 8, etc. The embodiment of the present application does not limit the type of the light source 8 and can be selected according to actual needs.

[0049] It should be understood that since the operation is performed in a humid environment, in order to ensure the normal function of the light source 8 and the camera 9, the light source 8 and the camera 9 used need to have waterproof and corrosion-resistant properties. The present application can directly use a light source 8 and a camera 9 with waterproof and corrosion-resistant properties, or can use sealing technology to make the light source 8 and the camera 9 waterproof and corrosion-resistant, and no specific restrictions are made here.

[0050] As an implementation mode, an embedding groove 10 is provided in the first channel 6 and the second channel 7, and the light source 8 and the camera 9 are embedded in the embedding groove 10. Such a configuration can enhance the sealing between the channel and the light source 8 and the camera 9, and prevent external impurities such as moisture and dust from entering the channel, thereby improving the waterproof and dustproof performance and reliability of the sheath knife, and also making it difficult for the light source 8 and the camera 9 to shake or fall off during the operation, thereby ensuring the stability and safety of the surgical operation.

[0051] Preferably, refer to Figure 6 The cross section of the embedding groove 10 is pocket-shaped. Under the premise of ensuring the above functions of the embedding groove 10, it also has a natural guiding effect, which is conducive to guiding the light source 8 and the camera 9 to smoothly enter the embedding groove 10, thereby improving the convenience of installation.

[0052] As an embodiment, a threading hole 11 is provided in the embedding groove 10, and the threading hole 11 extends from one end of the embedding groove 10 to between the inner wall of the sheath head and the wiring harness layer 20. It is not only convenient for disassembly and assembly, and is conducive to the later repair or replacement of the light source 8 and the camera 9, but also further enhances the sealing performance of the embedding groove 10, and effectively prevents external impurities such as moisture and dust from entering the embedding groove 10 through the threading hole 11, thereby affecting the functionality of the light source 8 and the camera 9.

[0053] As an implementation mode, the inlet and outlet parts are relatively arranged on both sides of the sheath handle, and the layout is reasonable, so that the input and output of the fluid are smoother, and the interference of the fluid input process and the fluid output process is avoided; the outlet part includes a liquid outlet pipe 12 and a liquid outlet valve 13, and the liquid outlet valve 13 is installed on the liquid outlet pipe 12, and the inlet part includes a liquid inlet pipe 14, a liquid inlet valve 15 and an air inlet pipe 16, and the liquid inlet valve 15 and the air inlet pipe 16 are installed on the liquid inlet pipe 14; by arranging the liquid inlet valve 15 and the liquid outlet valve 13, the sealing of the fluid is ensured, and the fluid is prevented from leaking or mixing with other impurities, thereby improving the safety of the operation; the arrangement of the air inlet pipe 16 makes the fluid input process more flexible, and it is possible to deliver liquid or gas to the surgical area separately, or to deliver liquid and gas to the surgical area at the same time, thereby expanding the use range of the sheath knife.

[0054] As an implementation mode, the air inlet pipe 16 is located between the liquid inlet valve 15 and the sheath handle, and the air inlet pipe 16 is connected to the liquid inlet pipe 14, which reduces the retention and interference of the fluid inside the sheath handle, reduces the transmission resistance, and thus improves the transmission efficiency of the fluid.

[0055] As an implementation mode, a sealing cap 17 is provided at one end of the air inlet pipe 16 away from the liquid inlet pipe 14, which can not only prevent the liquid from flowing out of the air inlet pipe 16 so as to better maintain the cleanliness and stability of the surgical process, but also protect the air inlet pipe 16 to prevent it from being contaminated or damaged during non-use or transportation.

[0056] As an implementation method, refer to Figure 4 The working chamber 5 is connected around the sheath handle. A charging port 18 is provided at one end of the working chamber 5 away from the sheath handle, which is convenient for supplying power to the light source 8 and the camera 9 through the working chamber 5. An opening and closing door 19 is provided on the working chamber 5, which is conducive to the inspection and maintenance of the internal components of the working chamber 5. At the same time, it also protects the internal components of the working chamber 5 to prevent damage to them by dust, moisture, etc.

[0057] It should be understood that a workstation is provided in the work compartment 5, and the workstation includes a power module, a wireless communication module, and a digital signal processing module. One end of the power module is connected to the light source 8 and the camera 9 respectively, and the other end is connected to the charging port 18, and the digital signal processing module is connected to the camera 9. In this embodiment, wireless WiFi can be used for communication connection. When the light source 8 and the camera 9 are turned on, the terminal can receive and save the image captured by the camera 9.

[0058] As an implementation mode, a wire groove 21 is provided between the wire harness layer 20 and the inner wall of the sheath rod, so that the wire harness can be neatly arranged along the inner wall of the sheath rod, reducing interference and wear between the wire harnesses and facilitating their maintenance and replacement.

[0059] The use principle of the present invention is: during treatment, the outer sheath 1 is directly inserted into the affected part according to the local pathological changes, or the knife core 2 is inserted into the outer sheath 1 and then inserted into the affected part together to perform a stripping action, which is not easy to damage the surrounding important tissues; when medication, ventilation, fluid inlet and fluid discharge are required, the outer sheath 1 is kept stationary, the knife core 2 is pulled out, and the above operations can be performed, which is easy to use and greatly reduces the pain caused to the patient during the operation.

[0060] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0061] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A soft tissue minimally invasive sheath knife, characterized in that: It comprises an outer sheath and a knife core sleeved in the outer sheath, wherein the outer sheath and the knife core are magnetically attracted; The knife core is a solid structure, and the knife core includes an integrally formed knife handle, a knife rod and a knife head. The knife handle is provided with a magnetic connector, and the knife head is a wedge-shaped structure with a round and smooth outer circumference; The outer sheath is a hollow structure, and the outer sheath includes an integrally formed sheath handle, a sheath rod and a sheath head. The sheath handle is provided with a magnetic connection groove, an inlet portion, an outlet portion and a working chamber. The magnetic connection head is plugged into the magnetic connection groove. The sheath head is a wedge-shaped structure with a smooth outer circumference. A through hole is provided on the sheath head, and an endoscope assembly is provided on the inner wall of the through hole. A wiring harness layer is provided on the inner wall of the sheath rod, and one end of the wiring harness layer extends to the endoscope assembly, and the other end extends to the working chamber.

2. The soft tissue minimally invasive sheath knife according to claim 1, characterized in that: The through hole includes a first hole and a second hole, and the first hole and the second hole are alternately arranged around the sheath head.

3. The soft tissue minimally invasive sheath knife according to claim 2, characterized in that: The endoscope assembly includes a light source and a camera, both of which are connected to the working chamber via a wiring harness, the light source is embedded in a first channel, and the camera is embedded in a second channel.

4. The soft tissue minimally invasive sheath knife according to claim 3, characterized in that: The first hole and the second hole are both provided with embedding grooves, and the light source and the camera are both embedded in the embedding grooves.

5. The soft tissue minimally invasive sheath knife according to claim 4, characterized in that: A threading hole is arranged in the embedding groove, and the threading hole extends from one end of the embedding groove to between the inner wall of the sheath head and the wiring harness layer.

6. The soft tissue minimally invasive sheath knife according to claim 1, characterized in that: The inlet part and the outlet part are arranged on both sides of the sheath handle relatively, the outlet part includes a liquid outlet pipe and a liquid outlet valve, the liquid outlet valve is installed on the liquid outlet pipe, the inlet part includes a liquid inlet pipe, a liquid inlet valve and an air inlet pipe, the liquid inlet valve and the air inlet pipe are installed on the liquid inlet pipe.

7. The soft tissue minimally invasive sheath knife according to claim 6, characterized in that: The air inlet pipe is located between the liquid inlet valve and the sheath handle, and the air inlet pipe is communicated with the liquid inlet pipe.

8. The soft tissue minimally invasive sheath knife according to claim 7, characterized in that: A blocking cap is arranged at one end of the air inlet pipe away from the liquid inlet pipe.

9. The soft tissue minimally invasive sheath knife according to claim 1, characterized in that: The working chamber is connected around the sheath handle, a charging port is arranged at one end of the working chamber away from the sheath handle, and an opening and closing door is arranged on the working chamber.

10. The soft tissue minimally invasive sheath knife according to claim 1, characterized in that: A wire groove is arranged between the wire harness layer and the inner wall of the sheath rod.

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