Painful puncture trocar and needle outer tube

Abstract

The present invention provides a pain puncture trocar and a needle outer tube, comprising a needle outer tube and a needle inner core, wherein the needle inner core matches the shape and size of the needle outer tube and is detachably sleeved inside the needle outer tube, wherein the needle outer tube comprises a tube front side and a tube back side, wherein the tube front side and the tube back side are integrally connected to form a working channel, wherein the working channel is longitudinally located in the middle of the needle outer tube, wherein the front end of the tube front side has a fitting surface, and the front end of the tube back side has a sliding surface, wherein the sliding surface comprises an arc surface and a tube inclined surface, wherein the outlet of the working channel is located on the tube inclined surface, wherein the sliding surface is suitable for sliding along the bone surface, and the fitting surface is suitable for fitting the bone surface at the treatment position, and can change the needle insertion path, and the fitting surface is larger, so as to achieve a better treatment effect.

Description

Technical Field

[0001] The invention relates to the field of medical equipment and supplies, and in particular to a pain puncture trocar and a needle outer tube for relieving pain. Background Art

[0002] In pain treatment, there are many clinical methods, including drugs, puncture, radiofrequency, surgery, etc., each with its own advantages and disadvantages for different pains. In recent years, puncture therapy and radiofrequency therapy after puncture are more commonly used, mainly to regulate or damage nerves to relieve pain, especially in the treatment of many chronic, intractable or malignant pains. The effectiveness of the treatment depends on the relationship between the puncture needle and the electrode built into the puncture needle and the position of the nerve. The closer the puncture needle is to the painful nerve, the better the effect, and vice versa.

[0003] Most of the puncture needles currently in use are straight or fixed curved, and this type of puncture needle has the following disadvantages: first, during the puncture process, the puncture path cannot be adjusted, and it is easy to puncture organs, blood vessels, and damage nerve tissues, causing more complications and secondary trauma to patients; second, during the puncture process, it is difficult to bypass the bones, and the puncture path must be adjusted repeatedly, and even repeated punctures are required to reach the predetermined position, which is inconvenient to operate and increases the pain of patients; third, since the bone surface has a certain curvature, after the straight puncture needle enters, the position tangent to the bone surface fits the bone surface, and there is a gap between the other parts and the bone surface, resulting in less contact between the puncture needle and the bone surface, poor fit, and poor treatment effect. In addition, since the bones of different patients and different treatment parts are slightly different, even the puncture needle with a fixed bending angle cannot be adjusted according to the angle of the bone surface of different patients or different puncture positions, resulting in poor fit and poor treatment effect.

[0004] Therefore, there is an urgent need for a puncture needle that can adjust the puncture path in real time, puncture accurately, and has good fit with the bone surface for pain treatment. Summary of the invention

[0005] One advantage of the present invention is that it provides a painful puncture trocar and a needle outer tube, which can adjust the puncture path and can smoothly slide over the bone surface during the puncture process, and is simple to operate and easy to use.

[0006] Another advantage of the present invention is that it provides a pain puncture trocar and a needle outer tube, wherein the bending angle of the needle outer tube is adjustable, and is suitable for application to different patients and treatment of pain in different locations.

[0007] Another advantage of the present invention is that it provides a pain puncture trocar and a needle outer tube. During the treatment process, the needle outer tube can fit the bone surface, be closer to the nerve tissue, and have a large contact area with the nerve, so the treatment effect is better.

[0008] Another advantage of the present invention is that it provides a painful puncture trocar and a needle outer tube. The needle outer tube is tough and can adjust the puncture position, so the requirements for the operating doctor are relatively low, and the operation is simplified from the aspect of instruments.

[0009] Another advantage of the present invention is that it provides a painful puncture cannula needle and a needle outer tube, which can change direction during the puncture process to avoid surrounding normal tissues and bones, prevent damage to surrounding tissues at the target location, ensure the accuracy of puncture, avoid repeated punctures, and reduce complications and patient pain.

[0010] Another advantage of the present invention is that it provides a pain puncture cannula needle and a needle outer tube. During the needle insertion process, the puncture path can be adjusted, and precise puncture can be performed under visualization conditions, making subsequent drug injections and other treatments more accurate, ensuring better treatment effects.

[0011] Another advantage of the present invention is that it provides a painful puncture trocar and a needle outer tube, wherein the needle head is blunt and rounded in shape, will not puncture tissue structures, and is safer and more reliable.

[0012] Another advantage of the present invention is that it provides a painful puncture trocar and a needle outer tube, wherein the material of the needle outer tube is different from the traditional one, so that the needle outer tube has a predetermined flexibility and its bending angle can be adjusted in real time, so that it can slide smoothly over the bone surface without causing secondary damage to the patient.

[0013] Another advantage of the present invention is that it provides a pain puncture trocar and a needle outer tube, wherein the needle outer tube is suitable for matching with an electrode to perform radiofrequency treatment on nerve tissue, has a wide range of uses, and is suitable for clinical promotion and application.

[0014] Another advantage of the present invention is that it provides a pain puncture trocar and a needle outer tube. The pain puncture trocar is a combination of a needle outer tube and a needle inner core. After the needle inner core is removed, it is suitable for injecting drugs through the channel of the needle outer tube, thereby treating or destroying nerve tissue to relieve pain.

[0015] According to one aspect of the present invention, the present invention provides a painful puncture trocar, comprising:

[0016] A needle outer tube, wherein the needle outer tube comprises a tube front section, the tube front section comprises a tube extension section, a tube arc section and a tube slope, wherein the tube arc section is integrally formed at the front part of the tube extension section, the tube slope is arranged at the top end of the tube arc section, the needle outer tube has a working channel, the working channel is longitudinally arranged on the needle outer tube, and the outlet of the working channel is located on the tube slope; and

[0017] A needle inner core, the needle inner core includes a core front section, the core front section includes a core extension section, a core arc section and a core slope, the new arc section is integrally formed at the front part of the core extension section, the core slope is arranged at the top end of the core arc section, the needle inner core is detachably sleeved on the inside of the needle outer tube through the working channel, wherein the needle inner core matches the needle outer tube.

[0018] The arc-shaped tube section includes an arc-shaped front side and an arc-shaped back side, the arc-shaped front side and the arc-shaped back side are integrally connected, the tube slope is located at the top of the arc-shaped back side, wherein the tube slope includes a tube slope top side and a tube slope end side, the tube slope top side is connected to the top of the arc-shaped front side, the tube slope extends from the tube slope top side toward the tube slope end side, and is connected to the arc-shaped back side at the tube slope end side.

[0019] The needle outer tube further comprises a tube middle section and a tube rear section, the tube middle section is connected between the tube rear section and the tube extension section, the needle inner core further comprises a core middle section and a core rear section, the core middle section is connected between the core rear section and the core extension section, the tube rear section and the core rear section are detachably connected so as to firmly sleeve the needle inner core inside the needle outer tube.

[0020] The needle outer tube further comprises an insulating layer and a scale mark, wherein the insulating layer is arranged on the outside of the middle section of the tube and the rear section of the tube, and the scale mark is arranged on the outside of the insulating layer.

[0021] The needle outer tube further comprises a positioning mark, which is arranged at the end of the rear section of the tube, and the needle inner core further comprises a sleeve mark, which is arranged at the rear section of the core. When the needle inner core is installed in the needle outer tube, the sleeve mark corresponds to the positioning mark.

[0022] The angle of the arc section of the tube is 10°-30°, the inclination angle of the tube slope is 65°, the lengths of the tube front section and the core front section are both 1 cm, the lengths of the tube arc section and the core arc section are both 0.5 cm, the lengths of the tube slope and the core slope are both ≤0.1 cm, the angle of the core arc section is 10°-15°, and the inclination angle of the core slope is 65°.

[0023] The needle outer tube is made of iron and aluminum, has toughness, and is suitable for adjusting the curvature of the arc-shaped section of the needle outer tube by external force.

[0024] According to another aspect of the present invention, the present invention provides a painful puncture trocar, comprising:

[0025] A needle outer tube, the needle outer tube comprising a tube front and a tube back, the tube front and the tube back being integrally connected to form a working channel, the working channel being longitudinally located in the middle of the needle outer tube, wherein the front end of the tube front has a fitting surface, the front end of the tube back has a sliding surface, the sliding surface comprises an arcuate surface and a tube inclined surface, wherein the tube inclined surface is disposed at the top end of the arcuate surface and connected to the top end of the fitting surface, the outlet of the working channel is located at the tube inclined surface, wherein the sliding surface is suitable for sliding along the bone surface, and the fitting surface is suitable for fitting the bone surface at the treatment position; and

[0026] A needle inner core is installed in the working channel and is detachably sleeved inside the needle outer tube, wherein the needle inner core matches the needle outer tube in shape and size.

[0027] The tube inclined surface includes a tube inclined surface top and a tube inclined surface end, the tube inclined surface top is rounded and located at the top of the needle outer tube, the tube inclined surface extends obliquely from the tube inclined surface top toward the tube inclined surface end, and is connected to the arc surface at the tube inclined surface end.

[0028] When the painful puncture trocar enters the human body, the fitting surface faces the direction of the ossicle. When reaching the ossicle, the top of the tube bevel contacts the ossicle. External force is applied to rotate the outer tube of the needle so that the top of the tube bevel leaves the contact point with the ossicle. The external force is continued to be applied to flip and slide the tube so that the bevel and the curved surface move along the bone surface of the ossicle until the curved surface is close to the ossicle to complete the first flip. The external force is continued to be applied so that the sliding surface slides forward along the bone surface of the ossicle to reach the treatment position. At this time, the fitting surface is away from the ossicle. External force is then applied to rotate the outer tube of the needle to complete the second flip so that the fitting surface faces the ossicle to fit the bone surface of the ossicle.

[0029] The inner core of the needle is a solid structure, including a core front section, a core rear section and a core middle section connected between the core front section and the core rear section, wherein the core front section includes a core extension section, a core arc section and a core slope, the core extension section is connected between the core arc section and the core middle section, the core slope is arranged at the top of the core arc section, wherein the core slope matches the tube slope, and the core arc section matches the arc surface and the arc surface.

[0030] The needle outer tube further includes a positioning mark, which is arranged at the end of the front side of the tube, and the needle inner core further includes a sleeve mark, which is arranged at the rear section of the core. After the needle inner core is sleeved on the needle outer tube, the positioning mark corresponds to the sleeve mark.

[0031] The curvature of the arc surface is 10°-30°, the inclination angle of the tube slope is 65°, the curvature of the core arc segment is 10°-15°, and the inclination angle of the core slope is 65°.

[0032] According to another aspect of the present invention, the present invention also provides a needle outer tube, comprising:

[0033] The invention comprises a tube front section, a tube middle section and a tube rear section, wherein the tube front section comprises a tube extension section, a tube arc section and a tube slope, wherein the tube middle section is integrally connected between the tube extension section and the tube rear section, the tube arc section is integrally connected to the front part of the tube extension section, the tube slope is located at the top end of the tube arc section, wherein the tube arc section comprises an arc-shaped front side and an arc-shaped back side, and the tube slope is located at the arc-shaped back side.

[0034] The needle outer tube further comprises an insulating layer, a positioning mark and a scale mark, wherein the insulating layer is arranged on the outside of the middle section and the rear section of the tube, the positioning mark is arranged on the rear section of the tube, and the scale mark is arranged on the outside of the insulating layer.

[0035] The needle outer tube has a working channel, which is longitudinally arranged at the front section, the middle section and the rear section of the tube, wherein the outlet of the working channel is located at the tube slope, wherein the tube slope includes a tube slope top and a tube slope end, the tube slope top is connected to the top of the arc-shaped front side, the tube slope extends from the tube slope top toward the tube slope end, and is connected to the arc-shaped back side at the tube slope end.

[0036] The needle outer tube is made of iron and aluminum, has predetermined strength and toughness, and is suitable for bending and rebounding within a certain range under the action of external force.

[0037] The angle of the arc section of the tube is 10°-30°, the inclination angle of the tube slope is 65°, the length of the front section of the tube is 1 cm, the length of the arc section of the tube is 0.5 cm, and the length of the tube slope is ≤0.1 cm.

[0038] According to another aspect of the present invention, the present invention also provides a needle outer tube, including a tube front side and a tube back side, wherein the tube front side and the tube back side are integrally connected to form a working channel, wherein the working channel is longitudinally located in the middle of the needle outer tube, wherein the front end of the tube front side has a fitting surface, and the front end of the tube back side has a sliding surface, wherein the sliding surface includes an arcuate surface and a tube inclined surface, wherein the tube inclined surface is arranged at the top end of the arcuate surface and is connected to the top end of the fitting surface, and the outlet of the working channel is located at the tube inclined surface, wherein the sliding surface is suitable for sliding along the bone surface, and the fitting surface is suitable for fitting the bone surface at the treatment position.

[0039] The tube inclined surface comprises a tube inclined surface top and a tube inclined surface end, the tube inclined surface top is rounded and located at the top of the needle outer tube, the tube inclined surface extends obliquely from the tube inclined surface top toward the direction of the tube inclined surface end, and is connected with the arcuate surface at the tube inclined surface end, when the pain puncture cannula needle enters the human body, the fitting surface faces the direction of the small bone, and when reaching the small bone, the tube inclined surface top contacts the small bone, and external force is applied to rotate the needle outer tube so that the tube inclined surface top leaves the contact point with the small bone, and external force is continuously applied to flip and slide so that the tube inclined surface and the arcuate surface move along the bone surface of the small bone until the arcuate surface is close to the small bone to complete the first flip; external force is continuously applied so that the sliding surface slides forward along the bone surface of the small bone to reach the treatment position, at which time the fitting surface is away from the small bone, and external force is applied to rotate the needle outer tube to complete the second flip so that the fitting surface faces the small bone to fit the bone surface of the small bone. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic structural diagram of a pain puncture trocar according to a preferred embodiment of the present invention.

[0041] Figure 2A It is a partial structural schematic diagram of the needle outer tube of the pain puncture trocar according to the above preferred embodiment of the present invention.

[0042] Figure 2B It is a partial structural schematic diagram from another perspective of the needle outer tube of the pain puncture trocar according to the above preferred embodiment of the present invention.

[0043] Figure 3 It is a partial structural schematic diagram of the needle outer tube of the pain puncture trocar according to the above preferred embodiment of the present invention.

[0044] Figure 4 Schematic diagram of the angle change of the needle outer tube according to the above preferred embodiment of the present invention.

[0045] Figure 5It is a partial structural schematic diagram of the needle inner core of the pain puncture trocar according to the above preferred embodiment of the present invention.

[0046] Figure 6 It is a schematic diagram of the puncture process of the painful puncture trocar according to the above preferred embodiment of the present invention. DETAILED DESCRIPTION

[0047] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0048] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0049] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0050] Reference Figure 1 To Attachment Figure 6 As shown, a pain puncture trocar according to a preferred embodiment of the present invention is schematically shown. In the present invention, the pain puncture trocar comprises a needle outer tube 10 and a needle inner core 20, wherein the needle inner core 20 is a solid structure, and the needle outer tube 10 has a working channel 100, wherein the needle inner core 20 is installed inside the working channel 100, so that the needle inner core 20 is detachably sleeved inside the needle outer tube 10.

[0051] The pain puncture trocar in the present invention can fine-tune the puncture path, has relatively low technical requirements for doctors, and can change the convenience during the puncture process to smoothly slide over the bone surface, prevent piercing other organs or tissues, avoid secondary trauma to patients, and reduce the occurrence of complications. During work, the pain puncture trocar can fit closely with the bone surface and have a larger contact area with the nerves. Whether it is later radio frequency or infusion of liquid medicine, it can contact more nerves, achieving better treatment effects.

[0052] In this embodiment, the direction in which the painful puncture trocar enters the human body is defined as the front, and the hand-held part is defined as the back for ease of explanation.

[0053] The needle outer tube 10 includes a tube front section 11, a tube middle section 12 and a tube rear section 13, wherein the tube middle section 12 is connected between the tube front section 11 and the tube rear section 13. When entering the human body, the tube rear section 13 is held by hand, so that the tube front section 13 contacts the human body in advance and then drives the tube middle section 12 to move toward the human body to reach a predetermined position.

[0054] The needle outer tube 10 further includes an insulating layer 14, which is disposed on the outer side of the tube middle section 12 to isolate the current from the inside of the tube middle section 12. The tube front section 11 is a conductive section exposed at the front end of the insulating layer 14 and the tube middle section 12, wherein the tube front section 11 and the tube middle section 12 are suitable for integral molding.

[0055] The tube front section 11 includes a tube extension section 111, a tube arc section 112 and a tube slope 113, wherein the tube extension section 111 is integrally formed between the tube middle section 12 and the tube arc section 112, and the tube slope 113 is arranged at the front end of the tube arc section 112, so that the front end of the tube arc section 112 is inclined.

[0056] The tube bevel 113 has a tube bevel top 1131 and a tube bevel end 1132, wherein the tube bevel end 1132 extends from the tube bevel top 1131 toward the tube arc section 112, and the tube bevel top 1311 is a rounded structure. In other words, the tube bevel 113 is blunt, not sharp, so that the front end of the needle outer tube 10 is a blunt structure to prevent other organs from being pierced when the needle is inserted.

[0057] The arcuate tube segment 112 includes an arcuate front face 1121 and an arcuate back face 1122 which are integrally formed. The arcuate front face 1121 and the arcuate back face 1122 are integrally formed to form the front face and the back face of the arcuate tube segment 112. The tube slope 113 extends from the top of the arcuate front face 1121 to the top of the arcuate back face 1122. That is, the top 1131 of the tube slope is located at the top of the arcuate front face 1121, and the bottom 1132 of the tube slope is located at the top of the arcuate back face 1132. Therefore, the plane where the top of the arcuate back face 1122 is located is located in front of the plane where the top of the arcuate front face 1121 is located.

[0058] In other words, the side where the arc-shaped back side 1122 is located is the back side of the painful puncture trocar, and the side where the arc-shaped front side 1121 is located is the front side of the painful puncture trocar, and the tube bevel 113 is located on the back side of the painful puncture trocar.

[0059] The needle outer tube 10 also includes a positioning mark 15, which is set on the surface of the tube rear section 13, so that the front and back of the pain puncture trocar can be identified through the positioning mark 15. After entering the human body, it is convenient to clearly distinguish the front and back of the pain puncture trocar, so as to conveniently fine-tune the puncture path and achieve better puncture and treatment effects. The positioning mark 15 can be implemented as a protrusion, a groove, a line or a mark of different colors, etc., so that the operator can see the bending direction of the pain puncture trocar.

[0060] Preferably, the positioning mark 15 is arranged on the front side of the pain puncture trocar, which is consistent with the bending direction of the arc-shaped tube segment 112, that is, the positioning mark 15 is on the same side as the arc-shaped front side 1121. When the pain puncture trocar enters the human body, the orientation of the arc-shaped front side 1121 can be identified by looking at the positioning mark 15 from outside the body, and the bending direction of the pain puncture trocar can also be determined.

[0061] The working channel 100 can not only be used to install the needle core 20, but also can be used as a drug injection channel after the needle core 20 is removed. Drugs for treating or destroying nerves can be injected through the working channel 100. A radio frequency electrode can also be installed through the working channel 100 for radio frequency treatment of pain.

[0062] The needle inner core 20 is a solid structure, wherein the shape of the needle inner core 20 is the same as that of the needle outer tube 10, and the bending direction and bending angle of the front end are consistent.

[0063] The needle inner core 20 includes a core front section 21, a core middle section 22 and a core rear section 23, wherein the core middle section 22 is connected between the core front section 21 and the core rear section 23. When the needle inner core 20 is installed in the working channel 100 of the needle outer tube 10, the core rear section 23 is connected to the tube rear section 13, which can not only fix the needle outer tube 10 and the needle inner core 20, but also can be hand-held for operation.

[0064] The core front section 21 includes a core extension section 211, a core arc section 212 and a core inclined surface 213, wherein the core arc section 212 is integrally formed at the front of the core extension section 211, and the core inclined surface 213 is arranged at the top of the core arc section 212 and is inclined toward the core extension section 211. The shape and size of the core inclined surface 213 match the tube inclined surface 113, and the shape and size of the core arc section 212 match the shape and size of the tube arc section 112. When the needle inner core 20 is sleeved inside the needle outer tube 10, the core front section 21 matches the tube front section 11 to enter the human body.

[0065] The needle inner core 20 includes a sleeve mark 25, which is set on the core rear section 23 to locate the insertion position of the needle inner core 20. When the sleeve mark 25 and the positioning mark 15 are in a straight line or overlap, the needle inner core 20 is correctly sleeved inside the needle outer tube 10. At this time, the core arc section 212 coincides with the tube arc section 112, and the core bevel 213 is aligned with the tube bevel 113, that is, the two can be fitted together, so that the bending direction and angle of the needle inner core 20 and the needle outer tube 10 are consistent.

[0066] When the needle inner core 20 is installed inside the needle outer tube 10, the needle inner core 20 can detachably fill the working channel 100. Therefore, during the needle insertion process after the two are sleeved, it can effectively prevent muscles, blood, etc. from entering the working channel 100, so that after the needle inner core 20 is pulled out, it is more convenient to inject medicine and install radio frequency electrodes.

[0067] When the needle outer tube 10 turns inside the human body or an external force is applied to change the bending angle of the needle outer tube 10, the needle inner core 20 needs to be pulled out. When reinserting, the needle inner core 20 may not be able to bend and align with the needle outer tube after insertion. By matching the positioning mark 15 with the sleeve mark 25, the positional relationship between the needle outer tube 10 and the needle inner core 20 can be accurately seen from outside the body, thereby aligning the needle inner core 20 with the needle outer tube 10 to ensure that the two can be accurately connected to puncture into the human body.

[0068] It is worth mentioning that the needle outer tube 10 also has a scale mark 16, which is arranged on the outside of the insulating layer 14, so as to intuitively see the length of the painful puncture cannula needle entering the human body, more accurately judge the puncture arrival position and make appropriate adjustments.

[0069] The pain puncture needle of the present invention can be used to treat lumbar vertebral pain, thoracic rib pain, trigeminal neuralgia, etc. It can be punctured under the guidance of fluoroscopy or B-ultrasound, and after sliding over the bone surface, it fits with the bone surface to contact the small bone with a larger area. During the puncture and fitting process, it is suitable to appropriately adjust the bending angle, puncture path and fitting degree within a certain range according to the actual application situation to ensure that the puncture is in place, avoid secondary trauma, reduce the patient's pain, and increase the chance of approaching the nerve to achieve better treatment effect.

[0070] The needle inner core 20 is made of stainless steel and is relatively hard, but the needle outer tube 10 is relatively soft compared to the needle inner core 20. By applying external force to the needle outer tube 10, the bending degree of the needle outer tube 10 can be changed. In other words, the needle outer tube 10 is a flexible outer tube, and the bending angle can be appropriately changed within a predetermined range by pressing, so as to adapt to the treatment of different pain sites of patients or to different groups of people.

[0071] That is to say, the sizes of bones in different parts of the body or the same bones in different populations are different, and the curvature of the bone surface is different. Traditional upright pain puncture treatment needles or pain puncture treatment needles with fixed bending angles cannot adapt to the changes in different bones, resulting in loose fit or less fitting surface, and unable to achieve better treatment effects. In the present invention, the change in the angle of the needle outer tube 10 can adapt to the treatment of different patients and different parts of the body, meet the differences between different ossicles, so that the pain puncture cannula needle can fit closely with different ossicles and adjust the fitting surface according to the bones, thereby achieving better treatment effects.

[0072] The painful puncture trocar is punctured under the guidance of fluoroscopy or B-ultrasound. The puncture and needle insertion process is referred to the attached Figure 6 As shown. The needle insertion path is defined as S, and the position on the left side of the needle insertion path S is defined as the left side surface S1, and the position on the right side of the needle insertion path S is defined as the right side surface S2, wherein the small bone G to be treated is located at the right side surface S2. Three positions passed during the needle insertion process and the treatment position are defined, namely, the four positions located on the needle insertion path S, which are the first position A, the second position B, the third position C and the fourth position D, wherein the first position A is the initial needle insertion position, the second position B is the position where the outer needle tube 10 initially contacts the bone surface, the third position C is the position after the first flip, and the fourth position D is the predetermined treatment position, which is also the position after the second flip.

[0073] Specifically, when the pain puncture trocar is located at the first position A, in order to avoid damaging other tissues and organs, the arc-shaped front side 1121 is directed toward the small bone G, that is, toward the right side surface S2, and the tube bevel 113 is directed in the opposite direction of the small bone G, that is, toward the left side surface S1. At this time, the positioning mark 15 is directed toward the right side surface S2.

[0074] When entering the second position B, the top of the tube bevel 1131 will abut against the small bone G and contact the small bone G, and it is unable to move forward at this time. If it is forced to move forward, the small bone will be punctured. Therefore, it is necessary to apply external force to rotate the rear section 13 of the tube and flip the pain puncture trocar so that the top of the tube bevel 1131 gradually moves away from the small bone G and no longer contacts the position B of the small bone.

[0075] In the above-mentioned flipping process, the needle outer tube 10 is flipped while sliding forward, that is, after slightly flipping, when the top end 1131 of the tube bevel no longer contacts the small bone, the needle outer tube 10 can be flipped while sliding forward to reach the third position C. In other words, the needle outer tube 10 is flipped while sliding along the bone surface of the small bone G between the second position B and the third position C until it slides to the third position C, and then the needle outer tube 10 is completely flipped, that is, the first flipping is completed.

[0076] In this process, the top of the tube slope 113 and the curved back side 1122 form a sliding surface, which slides along the small bone G, so that the front section 11 of the tube goes around the small bone G from the left side S1 of the small bone G to advance, preventing it from piercing the small bone or other organ tissues, and thus being able to smoothly slide over the bone surface of the small bone G.

[0077] It is worth mentioning that when the tip is turned over at the B position, the tip is turned over and slid at the same time, that is, the front needle section 11 is turned over, and the tube bevel 113 and the arc-shaped back surface 1122 slide along the bone surface of the small bone G. That is, the tube bevel 113 at the front end slides first when turning over, and then when the top end 1131 of the tube bevel turns over and separates from the contact point with the small bone G, it slides slightly forward, and at this time, the arc-shaped back surface 1122 slides forward along the bone surface of the small bone G until the maximum convex surface of the arc-shaped back surface 1122 reaches the third position C and fits with the small bone G.

[0078] At the third position C, after the pain puncture trocar completes the first flip, the arc front face 1121 faces the left side S1, the arc back face 1122 faces the right side S2, and the tube bevel face 113 faces the right side S2, that is, the arc back face 1122 and the tube bevel face 113 both face the direction of the small bone G. In this orientation, the external force is continuously applied to the tube rear section 13, so that the needle outer tube 10 continues to slide forward. That is, the sliding surface formed by the tube bevel face 113 and the arc back face 1122 continues to slide along the bone surface of the small bone G between the third position C and the fourth position D until reaching the fourth position D.

[0079] It is worth mentioning that, in the process of sliding from the third position C to the fourth position D, since the tube slope 113 is always facing the right side S2, it can prevent other tissues and organs near the ossicle from being punctured, and the sliding surface formed by the tube slope 113 and the curved back side 1122 can make sliding and advancing smoother.

[0080] When reaching the fourth position D, the external force is continuously applied to the tube rear section 13, and the needle outer tube 10 is flipped again, so that the tube bevel 113 and the arc-shaped back side 1122 face the left side S1, and the arc-shaped front side 1121 faces the right side S2, that is, the direction of the small bone G, and the second flip is completed. After the complete flip, the tube arc section 112 fits the bone surface of the small bone G. That is to say, from the top end 1131 of the tube bevel to the top end of the tube extension section 111, they are completely in contact with the bone surface of the small bone G, and the fit is tight, and the contact surface with the small bone is large.

[0081] During the treatment process, the curved front face 1121 is always kept in close contact with the bone surface, thereby achieving a larger contact area with the nerve, and the tube extension section 111 is also close to the ossicle, which can still play a certain role in the treatment process. In the traditional straight puncture needle treatment process, only part of it is tangent to the bone surface, and there is a large gap between the other parts and the bone surface, and the contact surface is small. The curved puncture trocar in this embodiment is wrapped on the outside of the ossicle and closely fits the bone surface. There is no gap between the two, which makes the contact surface larger and can achieve a better treatment effect.

[0082] It is worth mentioning that, in the present invention, the length L1 of the conductive front tube section 11 is 1 cm, the length L2 of the tube arc section 112 is 0.5 cm, and the length L3 from the top of the tube slope 1131 to the end of the tube slope 1132 is less than or equal to 1 mm. The tube arc section 112 forms a predetermined angle α with the tube extension section 111, wherein the angle range of α is 10° to 15°, and the inclination angle β of the tube slope 113 is 65°.

[0083] It will be understood by those skilled in the art that the angles and corresponding lengths of the needle outer tube 10 and the needle inner core 20 are implemented as the above-listed values, but are not limited to the above-listed values ​​and may be slightly changed according to actual usage without departing from the concept of the present invention.

[0084] Similarly, since the needle inner core 20 matches the needle outer tube 10, the needle inner core 20 can be detachably installed in the working channel 100. At the same time, it can also fill the through channel 100 when the needle is inserted, preventing the flesh from being sucked in due to the gap when the needle is inserted, which affects the needle insertion and patient safety.

[0085] Specifically, the core rear section 23 matches the tube rear section 13, and the needle inner core 20 is detachably connected to the needle outer tube 10 through the matching connection between the core rear section 23 and the tube rear section 13. The length and size of the core middle section 22 match the tube middle section 12, and the length, shape and size of the core front section 21 match the tube front section 11.

[0086] The core extension section 211 matches the tube extension section 111, and both have a length of 1 cm. The core arc section 212 matches the tube arc section 112, and both have a length of 0.5 cm and an arc of 10°-15°. The bending angle of the core arc section 212 cannot be adjusted, while the bending angle of the tube arc section 112 is suitable for being adjusted by external force. After adjustment, the bending angle of the tube arc section 112 is 10°-30°. The lengths of the tube bevel 113 and the core bevel 213 are both less than or equal to 0.1 cm, and the inclination angles are both 65°.

[0087] Due to the matching between the needle inner core 20 and the needle outer tube 10, the two can be smoothly punctured into the human body after being connected. After reaching the predetermined position, the needle inner core 20 is pulled out and the needle outer tube 10 is retained to perform the next operation, for example, injecting drugs through the working channel 100 of the needle outer tube 10, or installing a radio frequency needle, and then performing radio frequency treatment through the conductive front section 11 of the tube.

[0088] Preferably, the needle outer tube 10 is made of iron and aluminum, so it has toughness while meeting strength requirements, and the bending angle can be appropriately adjusted by pressing to fine-tune the insertion path and adapt to different bone surfaces and different people.

[0089] Reference Figure 4As shown, under normal circumstances, the actual curvature α of the front section 11 of the tube is 10°-15°, and the range of the needle outer tube 10 is changed to 10°-30° by pressing and adjusting, and it can be restored to the original curvature of 10° to 15° by applying external force. That is to say, the needle outer tube 10 has a certain deformation, so as to meet more needs.

[0090] Due to the different fatness and size of different patients and different bone sizes, when inserting the needle, under visualization conditions, if the needle insertion path is found to have some deviation during the puncture process, at this time, the harder needle inner core 20 can be used to apply external force to change the bending degree of the needle outer tube 10 to adjust the deviation and complete the puncture process. It is no longer necessary to pull out and puncture again, and a slight adjustment can be made during the puncture process, which reduces the pain of the patient. At the same time, the requirements for the doctor's operating level are relatively reduced, making the operation relatively simple in terms of instruments.

[0091] When sliding over the bone surface, if it is found that there is a slight deviation due to the difference in bones or the puncture position, the bending degree of the needle outer tube 10 can be changed by applying external force to the needle outer tube 10 so as to slide over the bone surface smoothly without puncturing the surrounding tissues and organs.

[0092] In addition, when the predetermined position is reached, under visualization conditions, when a gap is found between the curved front side 1121 and the bone surface, the curvature can be changed by applying external force to the needle outer tube 10 to better fit the bone surface, thereby being able to adapt to the differences in bones of different patients and different parts of the body. Without the need for repeated punctures and needle changes, better treatment effects can be achieved without the occurrence of more complications, and the success rate of the operation can be guaranteed.

[0093] It is worth mentioning that the needle outer tube 10 has a tube front 1101 and a tube back 1102, and the tube front 1101 and the tube back 1102 are connected in one piece to form the working channel 100. The front end of the tube front 1101 includes a fitting surface 1103, and the front end of the tube back 1102 includes a sliding surface 1104, and the sliding surface 1104 is connected in one piece with the fitting surface 1103. The sliding surface 1104 includes the tube inclined surface 113 and an arc surface 1105, wherein the tube inclined surface 113 is arranged at the top end of the arc surface 1105, and the top end of the tube inclined surface 113 is connected to the top end of the fitting surface 1103.

[0094] The tube front face 1101 is formed by the front face of the tube front section 11, the front face of the tube middle section 12 and the front face of the tube rear section 13, and the tube back face 1102 is formed by the back face of the tube front section 11, the back face of the tube middle section 12 and the back face of the tube rear section 13. Part of the back face of the tube front section 11, that is, the back face of the tube arc section 112 and the tube inclined surface 113 form the sliding surface 1104, and part of the front face of the tube front section 11, that is, the front face of the tube arc section 112 forms the fitting surface 1103.

[0095] Specifically, the tube bevel 113 includes the tube bevel top 1131 and the tube bevel end 1132. The tube bevel top 1131 is located at the front end of the needle front section 11. The tube bevel top 1131 is integrally connected with the top of the fitting surface 1103 and is blunt and rounded.

[0096] The tube bevel 1131 extends obliquely from the tube bevel top 1131 toward the tube bevel end 1132, and is connected to the arc surface 1105 at the tube bevel end 1132. Therefore, one side of the tube bevel 113 is the outlet of the working channel 100, and the other side of the tube bevel 113 is the fitting surface 1103 or the arc front surface 1121. Therefore, the tube bevel 113 is an inclined flat shape, and the tube arc section 112, the tube extension section 111 and the tube rear section 112 are all cylindrical, that is, the thickness of the tube bevel 113 is less than the thickness of the tube arc section 112 and the tube extension section 111.

[0097] The working channel 100 runs through the front section 11, the middle section 12 and the rear section 13 of the tube, so the working channel 100 is a longitudinal cylindrical channel, the cross-section of the working channel 100 is circular, and the outlet of the working channel 100 is located on the tube slope 113, so the outlet of the working channel 100 is elliptical, and is inclined with the inclination of the tube slope 113, that is, it is inclined.

[0098] During application, the sliding surface 1104 is suitable for sliding along the bone surface, so that the top of the tube front section 11, i.e., the top 1131 of the tube bevel, will not pierce the ossicle or other surrounding tissues and organs. When sliding to a predetermined position, the fitting surface 1103 fits the bone surface of the ossicle. In the present embodiment, during the sliding process, not only the arcuate surface 1105 can slide over the bone surface, but the tube bevel 113 can also slide over the bone surface. During the fitting treatment process, compared with the traditional puncture needle, the fitting surface 1103 fits the bone surface or is closer to the bone surface, so that the ossicle is surrounded by more bone surfaces of the puncture needle. Because the more fitting, the better the therapeutic effect. Therefore, the pain puncture trocar in the present invention can achieve a better therapeutic effect.

[0099] Specifically, during the above-mentioned needle insertion and treatment process, in the first position A, the fitting surface 1103 faces the right side surface S2, the sliding surface 1104, the curved surface 1105 and the tube bevel 113 all face the left side surface S1; when reaching the second position B, the top end 1131 of the tube bevel contacts the ossicle, and it is impossible to move forward at this time, and it is necessary to perform a first flip, rotate the needle outer tube 10, and when the top end 1131 of the tube bevel detaches from the ossicle G, no longer contacts the ossicle G, and gradually moves away from the ossicle G, continue to flip and slide, so that the tube bevel 113 drives the curved surface 1105 to slide, and when it slides through the sliding surface 104 When reaching the third position C, the first flip is completed, and the fitting surface 1103 is facing the left side S1, and the curved surface 1105 and the tube slope 113 are facing the right side S2, wherein the curved surface 1105 is close to the bone surface of the small bone G, or the two are tangent; then continue to apply external force to make the curved surface 1105 continue to slide forward close to the bone surface until reaching the fourth position D, and then perform a second flip; after the second flip is completed, the fitting surface 1103 is facing the right side S2, fitting with the bone surface of the small bone, and the curved surface 1105 and the tube slope 113 are facing the left side S1, and this orientation is maintained for the next treatment operation.

[0100] In the present invention, the positioning mark 15 is set at the end of the front side 1101 of the tube, and the insulating layer 14 and the scale mark 16 are both set at the rear end of the front side 1101 and the back side 1102 of the tube, so as to keep the front section 11 of the tube exposed, so as to facilitate the installation of the radio frequency needle and perform radio frequency treatment. In other words, the front section 11 of the tube is ensured to be in a conductive state, and in order to prevent damage to other tissues and organs, the middle section 12 of the tube and the back section 13 of the tube are insulated under the wrapping of the insulating layer 14.

[0101] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A painful puncture trocar, characterized in that: include: A needle outer tube, wherein the needle outer tube comprises a tube front section, the tube front section comprises a tube extension section, a tube arc section and a tube slope, wherein the tube arc section is integrally formed at the front part of the tube extension section, the tube slope is arranged at the top end of the tube arc section, the needle outer tube has a working channel, the working channel is longitudinally arranged on the needle outer tube, and the outlet of the working channel is located on the tube slope; and A needle inner core, the needle inner core includes a core front section, the core front section includes a core extension section, a core arc section and a core bevel, the core arc section is integrally formed at the front part of the core extension section, the core bevel is arranged at the top end of the core arc section, the needle inner core is detachably sleeved inside the needle outer tube through the working channel, wherein the tube front section is a conductive section, the tube bevel and the core bevel are blunt structures with consistent inclinations, the tube arc section and the core arc section are bent in accordance with each other, so that the needle inner core matches the needle outer tube, when the needle is inserted, the needle inner core completely fills the working channel of the needle outer tube, and the tube bevel and the core bevel are flipped after sliding over the small bone by operating the rear ends of the needle outer tube and the needle inner core, so that the tube arc section fits the bone surface, and radio frequency treatment is performed through the conductive tube front section.

2. The painful puncture trocar according to claim 1, wherein the arcuate tube section comprises an arcuate front side and an arcuate back side, the arcuate front side and the arcuate back side are integrally connected, the tube bevel is located at the top end of the arcuate back side, wherein the tube bevel comprises a tube bevel top end and a tube bevel end end, the tube bevel top end is connected to the top end of the arcuate front side, the tube bevel extends obliquely from the tube bevel top end toward the tube bevel end end, and is connected to the arcuate back side at the tube bevel end end.

3. The painful puncture trocar according to claim 2, wherein the needle outer tube further comprises a tube middle section and a tube rear section, the tube middle section is connected between the tube rear section and the tube extension section, the needle inner core further comprises a core middle section and a core rear section, the core middle section is connected between the core rear section and the core extension section, the tube rear section and the core rear section are detachably connected to firmly sleeve the needle inner core inside the needle outer tube, wherein the needle outer tube further comprises an insulating layer and a scale mark, the insulating layer is arranged on the outside of the tube middle section, and the scale mark is arranged on the outside of the insulating layer.

4. The painful puncture trocar needle according to claim 3, wherein the needle outer tube further comprises a positioning mark, which is arranged at the end of the rear section of the tube, and the needle inner core further comprises a sleeve mark, which is arranged at the rear section of the core, and when the needle inner core is installed in the needle outer tube, the sleeve mark corresponds to the positioning mark.

5. The painful puncture trocar according to any one of claims 1 to 4, wherein the curvature of the arcuate section of the tube is 10°-15°, the inclination angle of the tube bevel is 65°, the length of the front section of the tube is 1 cm, the length of the arcuate section of the tube is 0.5 cm, and the length of the tube bevel is ≤0.1 cm.

6. The painful puncture trocar according to claim 5, wherein the curvature of the core arc segment is 10°-15°, the inclination angle of the core bevel is 65°, the length of the core front segment is 1 cm, the length of the core arc segment is 0.5 cm, and the length of the core bevel is ≤0.1 cm.

7. The painful puncture trocar according to claim 6, wherein the needle outer tube is made of iron and aluminum, the needle outer tube has toughness, and is suitable for adjusting the curvature of the arc-shaped section of the needle outer tube by external force.

8. A painful puncture trocar, characterized in that: include: A needle outer tube, the needle outer tube comprising a tube front and a tube back, the tube front and the tube back being integrally connected to form a working channel, the working channel being longitudinally located in the middle of the needle outer tube, wherein the front end of the tube front has a fitting surface, the front end of the tube back has a sliding surface, the sliding surface comprises an arcuate surface and a tube inclined surface, wherein the tube inclined surface is disposed at the top end of the arcuate surface and connected to the top end of the fitting surface, the outlet of the working channel is located at the tube inclined surface, wherein the sliding surface is suitable for sliding along the bone surface, and the fitting surface is suitable for fitting the bone surface at the treatment position; and A needle inner core is installed in the working channel and detachably sleeved inside the needle outer tube, wherein the needle inner core matches the shape and size of the needle outer tube so that the needle inner core fills and occupies the working channel, wherein the front section of the needle outer tube is a conductive section, and when the sliding surface slides over the bone surface and enters the treatment site, the fitting surface is flipped to fit the bone surface, and radiofrequency treatment is performed through the conductive front section of the needle outer tube.

9. The painful puncture trocar needle according to claim 8, wherein the tube bevel comprises a tube bevel top and a tube bevel end, the tube bevel top is rounded and located at the top of the needle outer tube, the tube bevel extends obliquely from the tube bevel top toward the tube bevel end, and is connected to the arc surface at the tube bevel end.

10. The painful puncture trocar according to claim 9, wherein when the painful puncture trocar enters the human body, the fitting surface faces the direction of the ossicle, and when reaching the ossicle, the top of the tube bevel contacts the ossicle, and an external force is applied to rotate the outer tube of the needle so that the top of the tube bevel leaves the contact point with the ossicle, and the external force is continued to be applied to flip and slide so that the tube bevel and the arcuate surface move along the bone surface of the ossicle until the arcuate surface is close to the ossicle, completing the first flip; the external force is continued to be applied so that the sliding surface slides forward along the bone surface of the ossicle to reach the treatment position, at which time the fitting surface is away from the ossicle, and an external force is applied again to rotate the outer tube of the needle to complete the second flip so that the fitting surface faces the ossicle to fit the bone surface of the ossicle.

11. The painful puncture trocar according to any one of claims 8 to 10, wherein the curvature of the arc-shaped surface is 10°-15°, and the inclination angle of the tube bevel is 65°.

12. The painful puncture trocar needle according to claim 11, wherein the needle outer tube further comprises a positioning mark, which is arranged at the end of the front side of the tube, and the needle inner core further comprises a sleeve mark, which is arranged at the rear section of the core, and after the needle inner core is sleeved on the needle outer tube, the positioning mark corresponds to the sleeve mark.

13. The painful puncture trocar according to claim 12, wherein the inner core of the needle is a solid structure, comprising a core front section, a core rear section and a core middle section connected between the core front section and the core rear section, wherein the core front section comprises a core extension section, a core arc section and a core bevel, the core extension section is connected between the core arc section and the core middle section, the core bevel is arranged at the top of the core arc section, wherein the core bevel matches the tube bevel, the core arc section matches the arc surface, wherein the curvature of the core arc section is 10°-15°, and the inclination angle of the core bevel is 65°.

14. A needle outer tube, characterized in that: The invention comprises a tube front section, a tube middle section and a tube rear section, wherein the tube front section comprises a tube extension section, a tube arc section and a tube slope, wherein the tube middle section is integrally connected between the tube extension section and the tube rear section, the tube arc section is integrally connected to the front part of the tube extension section, the tube slope is located at the top end of the tube arc section, wherein the tube arc section comprises an arc front side and an arc back side, the tube slope is located at the arc back side, the tube front section is a conductive section, and the tube slope is turned over after sliding over the small bone by operating the rear end of the needle outer tube, so that the tube arc section fits the bone surface, and radio frequency treatment is performed through the conductive tube front section.

15. A needle outer tube, characterized in that, The outer tube of the needle comprises a tube front and a tube back, the tube front and the tube back are integrally connected to form a working channel, the working channel is longitudinally located in the middle of the outer tube of the needle, wherein the front end of the tube front has a fitting surface, the front end of the tube back has a sliding surface, the sliding surface comprises an arcuate surface and a tube inclined surface, wherein the tube inclined surface is arranged at the top end of the arcuate surface and connected to the top end of the fitting surface, the outlet of the working channel is located on the tube inclined surface, wherein the sliding surface is suitable for sliding along the bone surface, and the fitting surface is suitable for fitting the bone surface at the treatment position, wherein the front section of the outer tube of the needle is a conductive section, when the sliding surface slides over the bone surface and enters the treatment site, the fitting surface is fitted to the bone surface by flipping, and radio frequency treatment is performed through the conductive front section of the outer tube of the needle.

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