Needle knife and system thereof
By adding a limiter and a design of the tool group to the tool group, the problem of the small needle knife easily penetrating too deep is solved, and a more accurate and safe puncture operation is achieved.
Patent Information
- Application Number
- CN202422408163.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-09-30
AI Technical Summary
Existing small needle knives are prone to inserting too deep, resulting in the problem of accidental insertion.
A needle knife is designed, which includes a knife holder, a limiting part and a knife group. The limiting part covers the tip projection of the knife group and limits the puncture depth of the knife group through the limiting part to avoid excessive insertion.
It effectively avoids the problem of the needle knife penetrating too deep during the puncture process and improves the accuracy and safety of the operation.
Smart Images
Figure CN223323571U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to an acupuncture knife and a system thereof. Background Art
[0002] Small needle knives are commonly used to cut and release diseased soft tissue, achieving the same results as conventional surgery in a shorter time. Since their development, small needle knives have proven effective not only in treating surgical conditions but also in treating internal medical conditions such as diabetes and hypertension. Needle knives have an optimal insertion depth range, and existing techniques can easily lead to over-insertion and mis-insertion.
[0003] Therefore, the existing technology still needs to be improved and developed. Utility Model Content
[0004] The technical problem to be solved by the present invention is to provide a needle knife and a system thereof in view of the above-mentioned defects of the prior art, aiming to solve the problem in the prior art that small needle knives are prone to insert too deep and cause accidental punctures.
[0005] The technical solutions adopted by the present invention to solve the technical problems are as follows:
[0006] A needle knife, comprising:
[0007] Knife holder;
[0008] A limiting portion, provided on the knife seat;
[0009] a tool assembly connected to the limiting portion;
[0010] Wherein, in the length direction of the tool set, the projection of the limiting portion covers the projection of the tool tip of the tool set.
[0011] The needle knife, wherein the knife set includes:
[0012] A hollow knife connected to the limiting portion;
[0013] The built-in knife moves inside the hollow knife and the tip of the built-in knife moves outside the tip of the hollow knife.
[0014] The needle knife, wherein the side of the knife holder away from the limiting portion is a plane.
[0015] The needle knife, wherein the outer diameter of the hollow knife is 2mm to 3mm.
[0016] The needle knife, wherein the built-in knife comprises:
[0017] A hollow built-in knife, wherein the hollow built-in knife moves inside the hollow knife and the tip of the hollow built-in knife moves outside the tip of the hollow knife;
[0018] A solid built-in knife moves inside the hollow built-in knife and a knife tip of the solid built-in knife moves outside the knife tip of the hollow built-in knife.
[0019] The needle knife, wherein the outer diameter of the hollow built-in knife is 1.5mm to 1.8mm; the outer diameter of the solid built-in knife is 0.6mm to 1mm.
[0020] The needle knife, wherein the distance between the tip of the hollow knife and the end of the limiting portion is adjustable.
[0021] The needle knife, wherein the limiting portion is provided with a screw hole, the hollow knife is provided with an external thread, and the external thread forms a threaded connection with the screw hole.
[0022] The needle knife, wherein the cross section of the end of the limiting portion is in the shape of a major arc; the distance between the tip of the tool assembly and the end of the limiting portion is in the centimeter level.
[0023] An acupotomology system, comprising the acupotomology described in any one of the above items.
[0024] Beneficial effect: During puncture, the tip of the tool group punctures. After piercing the target to be punctured, the tool group continues to move under the action of inertia, and the limit part contacts the target to be punctured, hindering the tool group from continuing to move, thereby avoiding the problem of the tool group puncturing too deep. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a first structural diagram of the needle knife in an embodiment of the utility model.
[0026] Figure 2 It is an exploded view of the needle knife in the embodiment of the utility model.
[0027] Figure 3 This is a first cross-sectional view of the needle knife in the embodiment of the present utility model.
[0028] Figure 4 This is a second structural diagram of the needle knife in the embodiment of the utility model.
[0029] Figure 5 It is a second cross-sectional view of the needle knife in the embodiment of the present utility model.
[0030] Figure 6 It is the third cross-sectional view of the needle knife in the embodiment of the present utility model.
[0031] Description of reference numerals:
[0032] 10. Tool holder; 11. Limiting portion; 12. Screw hole; 13. Through hole; 20. Tool assembly; 21. Hollow tool; 211. External thread; 22. Built-in tool; 221. Hollow built-in tool; 222. Solid built-in tool; 223. First tool handle; 224. Second tool handle. DETAILED DESCRIPTION
[0033] In order to make the purpose, technical solutions and advantages of the present invention more clear and distinct, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0034] Please also see Figures 1-6 The present utility model provides some preferred embodiments of a needle knife.
[0035] The Diploё theory is a needle knife operation targeting the facial and head nerves. The surface layer of the skull bone is dense, called the inner plate and the outer plate. The spongy tissue between the two plates is called the diploё layer, through which the diploё vein passes. The inventors have found through research that the diploё layer (Diploё) between the outer plate and the inner plate of the skull can be released, mainly for patients with previous craniocerebral injuries and the muscles and facial nerves controlled by the brain nerves, to relieve the pressure inside the skull, with significant therapeutic effects. The needle knife needs to pierce the outer plate but not the inner plate, that is, the insertion depth of the needle knife is limited between the inner plate and the outer plate, so that the diploё layer can be better released. The needle knife in the prior art is prone to excessive penetration, especially when piercing the outer plate, if too much force is used, the inner plate may be pierced under the action of inertia. The present application provides a limit portion on the knife holder, and the limit portion limits the insertion depth of the tool group so that the tool group can perform a release operation at an appropriate depth.
[0036] like Figure 1 and Figure 4 As shown, the needle knife includes:
[0037] Knife holder 10;
[0038] A limiting portion 11 is provided on the knife seat 10;
[0039] A tool assembly 20, wherein the tool assembly 20 is connected to the limiting portion 11;
[0040] In the longitudinal direction of the tool set 20 , the projection of the limiting portion 11 covers the projection of the tool tip of the tool set 20 .
[0041] Specifically, the tool assembly 20 is used for puncture, specifically by puncturing the target to be punctured with the blade tip of the tool assembly 20. The limiter 11 is used to limit the puncture depth of the tool assembly 20. After the blade tip of the tool assembly 20 punctures the target with puncture, the limiter 11 contacts the target with puncture, restricting further movement of the needle knife, making it impossible for the blade tip of the tool assembly 20 to move further. The tool assembly 20 can also be used for loosening, specifically by loosening the target with the blade tip of the tool assembly 20. Generally, the blade tip of the tool assembly 20 needs to pass through the target to be punctured before contacting the target to be loosened, and then loosening. For example, the target to be punctured can be the outer plate of the skull, and the target to be loosened can be the lamina propria. During puncture, the tip of the tool assembly 20 punctures, and after piercing the target to be punctured, the tool assembly 20 continues to move under the action of inertia, and the limit portion 11 contacts the target to be punctured, hindering the tool assembly 20 from continuing to move, thereby avoiding the problem of the tool assembly 20 puncturing too deep.
[0042] In a preferred embodiment of the present invention, please refer to Figure 1 and Figure 4 The distance between the tip of the tool set 20 and the end of the limiting portion 11 is in the centimeter range.
[0043] Specifically, the distance between the tip of the tool set 20 and the end of the limiting portion 11 is in the centimeter range, which is determined according to the thickness of the target to be punctured. For example, if the target to be punctured is the outer plate of the skull, the distance between the tip of the tool set 20 and the end of the limiting portion 11 is 1cm-2cm.
[0044] In a preferred embodiment of the present invention, please refer to Figure 1 、 Figure 4 as well as Figure 6 The cross section of the end portion of the limiting portion 11 is in the shape of a major arc.
[0045] Specifically, the cross-section of the end of the limiting portion 11 is a major arc shape, that is, a circle with a notch. The position of the notch is convenient for observing the position of the tip of the tool assembly 20, which is beneficial to improving the accuracy of aligning the tip of the tool assembly 20 with the target to be punctured.
[0046] In a preferred embodiment of the present invention, please refer to Figure 1 and Figure 4 , the tool set 20 includes:
[0047] A hollow blade 21 connected to the limiting portion 11;
[0048] The built-in knife 22 moves inside the hollow knife 21 and the tip of the built-in knife 22 moves outside the tip of the hollow knife 21 .
[0049] Specifically, the hollow lancet 21 is used for puncture, and the internal lancet 22 is used for release. After the hollow lancet 21 punctures the target, the internal lancet 22 moves within the hollow lancet 21, and the tip of the internal lancet 22 passes through the tip of the hollow lancet 21, and then releases the target. The internal lancet 22 can be separated from the hollow lancet 21. During puncture, the hollow lancet 21 is used for puncture, and the internal lancet 22 does not need to be placed in the hollow lancet 21. After puncture, the internal lancet 22 is placed in the hollow lancet 21 for release. At this time, the hollow lancet 21 remains on the target, guiding the movement of the internal lancet 22 and preventing the internal lancet 22 from becoming contaminated when entering the target.
[0050] In a preferred embodiment of the present invention, please refer to Figure 1 、 Figure 3 as well as Figure 5 The side of the knife seat 10 away from the limiting portion 11 is a plane.
[0051] Specifically, the blade holder 10 is formed into a plane away from the limiting portion 11, and the plane is convenient for applying force to perform puncture. For example, the blade holder 10 can be a circular plate.
[0052] In a preferred embodiment of the present invention, the outer diameter of the hollow blade 21 is 2 mm to 3 mm.
[0053] Specifically, the outer diameter of the hollow blade 21 is 2 mm to 3 mm, for example, 2.5 mm can be used. The hollow blade 21 uses a smaller outer diameter to form a smaller puncture hole, which causes less damage and is easier to recover.
[0054] In a preferred embodiment of the present invention, the internal blade 22 can be a single-layer blade or a multi-layer blade. When the internal blade 22 is a single-layer blade, the single-layer blade is used directly for loosening. When the internal blade 22 is a multi-layer blade, the outer blade can limit and further guide the inner blade.
[0055] In a preferred embodiment of the present invention, please refer to Figure 1-Figure 3 , the built-in knife 22 includes:
[0056] The solid built-in knife 222 moves inside the hollow knife 21 and the tip of the hollow built-in knife 221 moves outside the tip of the hollow knife 21 .
[0057] Specifically, the built-in blade 22 can be a single-layer blade, for example, a solid built-in blade 222 is used, and the solid built-in blade 222 is located inside the hollow blade 21.
[0058] In a preferred embodiment of the present invention, please refer to Figure 4-Figure 6 , the built-in knife 22 includes:
[0059] A hollow built-in knife 221, wherein the hollow built-in knife 221 moves inside the hollow knife 21 and the tip of the hollow built-in knife 221 moves outside the tip of the hollow knife 21;
[0060] The solid built-in knife 222 moves inside the hollow built-in knife 221 and the tip of the solid built-in knife 222 moves outside the tip of the hollow built-in knife 221 .
[0061] Specifically, the built-in blade 22 can be a double-layer blade, for example, a hollow built-in blade 221 as the outer blade, and a solid built-in blade 222 as the inner blade, with the solid built-in blade 222 located within the hollow built-in blade 221 and moving within the hollow built-in blade 221. The outer diameter of the hollow built-in blade 21 is larger than the outer diameter of the hollow built-in blade 221, and the outer diameter of the hollow built-in blade 221 is larger than the outer diameter of the solid built-in blade 222. The main function of the hollow built-in blade 21 is puncture, the main function of the solid built-in blade 222 is release, and the main function of the hollow built-in blade 221 is position limiting. Since the outer diameter of the hollow built-in blade 221 is smaller than the outer diameter of the hollow built-in blade 21, the hollow built-in blade 221 is used for position limiting and guiding, which is not likely to affect the structures around the target to be released. The end of the hollow built-in blade 221 is provided with a first handle 223, and the end of the solid built-in blade 222 is provided with a second handle 224. The first handle 223 and the second handle 224 are convenient to hold.
[0062] In a preferred embodiment of the present invention, the outer diameter of the hollow built-in blade 221 is 1.5 mm to 1.8 mm. For example, the outer diameter of the hollow built-in blade 221 is 1.6 mm.
[0063] In a preferred embodiment of the present invention, the outer diameter of the solid built-in blade 222 is 0.6 mm to 1 mm. For example, the outer diameter of the solid built-in blade 222 is 0.8 mm.
[0064] In a preferred embodiment of the present invention, please refer to Figure 2 、 Figure 3 as well as Figure 5 The distance between the tip of the hollow knife 21 and the end of the limiting portion 11 is adjustable.
[0065] Specifically, the length by which the tip of the hollow knife 21 extends beyond the end of the limiting portion 11 is the puncture depth. The puncture depth can be adjusted by adjusting the distance between the tip of the hollow knife 21 and the end of the limiting portion 11.
[0066] In a preferred embodiment of the present invention, please refer to Figure 3 and Figure 5The limiting portion 11 is provided with a screw hole 12 , and the hollow knife 21 is provided with an external thread 211 , and the external thread 211 forms a threaded connection with the screw hole 12 .
[0067] Specifically, an external thread 211 is formed on the surface of the hollow blade 21, and the external thread 211 is threadedly connected to the screw hole 12. By rotating the hollow blade 21, the distance between the tip of the hollow blade 21 and the limiting portion 11 can be adjusted. A scale can be set on the outside of the hollow blade 21 to determine the puncture depth of the hollow blade 21.
[0068] In a preferred embodiment of the present invention, please refer to Figure 3 and Figure 5 The knife seat 10 and the limiting portion 11 are provided with a through hole 13 , and the through hole 13 is communicated with the screw hole 12 , and the through hole 13 can allow the built-in knife 22 to pass through.
[0069] Specifically, the built-in knife 22 passes through the through hole 13 and is inserted into the hollow knife 21 until it moves to the outside of the hollow knife 21 and contacts the target to be loosened, and then the loosening operation can be performed.
[0070] Based on the acupuncture knife of any of the above embodiments, the present invention further provides an acupuncture knife system, including the acupuncture knife described in any of the above embodiments, specifically as described above.
[0071] The needle knife system provided by the present invention has all the above beneficial effects because it is provided with the needle knife described in any of the above technical solutions, and no further details will be given here.
[0072] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, they can make improvements or changes based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.
Claims
1. A needle knife, characterized in that: include: Knife holder; A limiting portion, provided on the knife seat; a tool assembly connected to the limiting portion; Wherein, in the length direction of the tool set, the projection of the limiting portion covers the projection of the tool tip of the tool set.
2. The needle knife according to claim 1, characterized in that The tool set includes: A hollow knife connected to the limiting portion; The built-in knife moves inside the hollow knife and the tip of the built-in knife moves outside the tip of the hollow knife.
3. The needle knife according to claim 2, characterized in that: A side of the knife seat facing away from the limiting portion is a plane.
4. The needle knife according to claim 2, characterized in that The outer diameter of the hollow knife is 2mm to 3mm.
5. The needle knife according to claim 4, characterized in that: The built-in knife includes: A hollow built-in knife, wherein the hollow built-in knife moves inside the hollow knife and the tip of the hollow built-in knife moves outside the tip of the hollow knife; A solid built-in knife moves inside the hollow built-in knife and a knife tip of the solid built-in knife moves outside the knife tip of the hollow built-in knife.
6. The needle knife according to claim 5, characterized in that The outer diameter of the hollow built-in knife is 1.5mm to 1.8mm; the outer diameter of the solid built-in knife is 0.6mm to 1mm.
7. The needle knife according to claim 2, characterized in that The distance between the tip of the hollow knife and the end of the limiting portion is adjustable.
8. The needle knife according to claim 7, characterized in that: The limiting portion is provided with a screw hole, and the hollow knife is provided with an external thread, and the external thread forms a threaded connection with the screw hole.
9. The acupotomology according to any one of claims 1 to 8, characterized in that: The cross section of the end portion of the limiting portion is in the shape of a major arc; the distance between the tip of the tool assembly and the end portion of the limiting portion is in the centimeter level.
10. An acupotomy system, characterized in that: It comprises the needle knife according to any one of claims 1 to 9.