Bent needle knife and releasing device for clamping and pressing soft tissue of human body
By designing a curved needle knife, the problems of puncture and oblique puncture of existing needle knife when loosening the annular structure are solved, safely loosening the annular structure and larger operating space are achieved, effectively reducing damage to the contents .
Patent Information
- Application Number
- CN202420347423.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-02-23
AI Technical Summary
Existing needle knives are prone to piercing or cutting when loosening the contents of the annular structure, and the puncture angle is inevitably oblique due to the occlusion of the ultrasonic probe, which increases the risk of direct damage to the contents.
A bent needle knife is designed, including a curved needle blade body and a semi-cylindrical needle knife bottom, with a triangular prism or an inclined flat edge with a bending angle of 120°-150° to avoid oblique puncture and provide a larger Operate space and field of view.
Through the bending shape of the needle knife design, direct damage to the contents of the annular structure is avoided, the operating space and field of view is enhanced, the risk of direct puncture of the needle knife is reduced, and the ring-shaped sheath or hyperplasia targets are effectively loosened.
Smart Images
Figure CN222237766U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a medical device, in particular to a curved needle knife, a device for releasing compressed soft tissues of human body. Background Art
[0002] In clinical practice, various clinical diseases, such as carpal tunnel syndrome and thumb tenosynovitis, often occur due to the compression of contents such as nerves and tendons caused by adhesion or hyperplasia of the inner wall of the annular structure. Acupotomy is often used to release the tension of muscles, tendon sheaths and fascia, as well as the compression of nerves or tendons caused by hyperplasia or tension. At present, the main form of acupotomy is a horizontal vertical form with a handle. This form has the possibility of piercing or cutting the tendon sheath when releasing the annular tendon sheath. At the same time, with the application of musculoskeletal ultrasound in clinical practice, due to the obstruction of the ultrasound probe, there is a certain distance between the target area of the body's operation and the puncture area. When the current horizontal and vertical needle knives are used for target release, there is an inevitable angle of oblique downward puncture, which poses a risk of direct damage to the contents of the annular structure, such as Figure 2 As shown. In addition, the front end of the current needle knife is a flat sharp blade, which is easy to directly lose the contents of the human body's annular structure (such as nerves, tendons, etc.) during release. Utility Model Content
[0003] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a curved needle knife, which is a device for releasing compressed soft tissues of the human body.
[0004] In order to solve the above problems, the technical solution of the utility model is: a curved needle knife, including a needle knife handle, a needle knife body and a needle knife head, the needle knife body is curved in design, the needle knife head includes a needle knife base at the bottom and a needle knife part arranged on the needle knife base, the needle knife base is a semi-cylindrical structure in which the needle knife body continues to extend at its end, and a needle knife blade is arranged at the front end of the needle knife part.
[0005] Furthermore, the needle knife portion preferably includes a needle knife front section with a triangular prism structure and a needle knife rear section extending from the needle knife front section, the needle knife rear section is an arrow-shaped structure that gradually narrows from the outer edge of the end of the needle knife front section toward the center, and the needle knife blade is arranged at the front end of the needle knife rear section.
[0006] Furthermore, it is preferred that the needle blade is an inclined flat blade inclined from a high position at the proximal end to a low position at the distal end, or the needle blade is a flat vertical blade arranged longitudinally.
[0007] Furthermore, it is preferred that the front end of the needle knife bottom is chamfered.
[0008] Furthermore, it is preferred that there is a smooth transition between the needle blade body and the needle blade portion.
[0009] Furthermore, it is preferred that there is a smooth transition between the needle knife body and the needle knife bottom.
[0010] Furthermore, it is preferred that there is a smooth transition between the needle knife body and the needle knife bottom.
[0011] Furthermore, it is preferred that the bending angle of the needle blade is set to 120°-150°.
[0012] Furthermore, it is preferred that the bending angle of the needle blade is 120°, 135° or 150°.
[0013] The utility model also provides a device for releasing compressed soft tissue of human body, comprising an ultrasonic instrument and the curved needle knife.
[0014] The beneficial effects of implementing the utility model are as follows: the utility model provides a needle knife body with a curved shape. When the curved needle knife loosens the compressed target point of human tissue, it avoids direct oblique downward puncture of the target point, thereby avoiding direct damage to the contents of the annular structure; on the other hand, the needle knife blade is used to loosen the compressed annular sheath or hyperplastic target point, and the cylindrical needle knife bottom can better avoid direct damage to the contents of the annular structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic implementation modes and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:
[0016] Figure 1 It is a schematic diagram of the structure of the curved needle knife in the utility model;
[0017] Figure 2 This is a schematic diagram of the use of a common needle knife in combination with an ultrasonic instrument in the background technology of the present utility model;
[0018] Figure 3 This is a schematic diagram of the use state of the device for releasing compressed soft tissue of the human body according to the utility model;
[0019] Figure 4 It is a lateral structural schematic diagram of the first embodiment of the needle knife head of the utility model;
[0020] Figure 5 It is a top view of the first embodiment of the needle knife head of the utility model;
[0021] Figure 6 This is another side structural schematic diagram of the first embodiment of the needle knife head of the utility model;
[0022] Figure 7 It is a schematic diagram of the front end structure of the first embodiment of the needle knife head of the utility model;
[0023] Figure 8 It is a lateral structural schematic diagram of the second embodiment of the needle knife head of the utility model;
[0024] Fig. 9 This is another side structural schematic diagram of the second embodiment of the needle knife head of the utility model;
[0025] Fig.10 It is a top view of the second embodiment of the needle knife head of the utility model;
[0026] Fig.11 It is a schematic diagram of the front end structure of the second embodiment of the needle knife head of the utility model. DETAILED DESCRIPTION
[0027] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.
[0028] When a component is referred to as being “fixed to” or “disposed on” another component, it may be directly or indirectly located on the other component. When a component is referred to as being “connected to” another component, it may be directly or indirectly connected to the other component.
[0029] The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the drawings and are only for the convenience of description and should not be construed as limitations on the present technical solution. The terms "first", "second", etc. are only used for the convenience of description and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined. "Proximal end" is the end close to the operator, and "distal end" is the end away from the operator.
[0030] The utility model provides a curved needle knife, such as Figure 1 , Figure 3-Figure 11As shown, it includes a needle knife handle 10, a needle knife body and a needle knife head 30, and the needle knife body 20 is designed to be curved; when an ultrasonic probe is used for loosening, due to the shielding of the ultrasonic probe, there is a certain distance between the target area of the body operation and the puncture area, and in the utility model, the needle knife body 20 is set to be curved, and for the annular sheath tissue or other annular structures, only the annular sheath or ligament can be loosened. When the needle knife with a curved shape is used for target loosening, it is avoided to directly puncture the target position obliquely downward, thereby avoiding direct damage to the contents of the annular structure; on the other hand, the needle knife body 20 includes a first needle blade body segment 21 connected to the needle blade handle 10 and a second needle blade body segment 22 connected to the first needle blade body segment 21. The first needle blade body segment 21 and the second needle blade body segment 22 are bent and form an arc transition, so that the central axis of the needle blade 311 located at the front end can be misaligned with the central line of the needle blade handle 10 in the V direction. When the operator holds the needle blade handle 10 for operation, the needle blade body 20 and the needle blade 311 located at the front end have a larger operating space, and the operator has a wider operating field of view.
[0031] In the present invention, the needle knife head 30 includes a needle knife bottom 32 at the bottom and a needle knife part 31 arranged on the needle knife bottom 32. The needle knife bottom 32 is a semi-cylindrical structure of the needle knife body 20 extending at its end, and a needle knife blade 311 is arranged at the front end of the needle knife part 31. When the needle knife of the present invention is pushed forward, the needle knife blade 311 can loosen the annular sheath or hyperplastic target point that is stuck. The needle knife bottom 32 arranged at the bottom is a semi-cylindrical structure, which can better avoid direct damage to the contents of the annular structure.
[0032] In a specific embodiment, the needle knife portion 31 includes a needle knife front section 312 with a triangular prism structure and a needle knife rear section 313 extending from the needle knife front section 312, the needle knife rear section 313 is an arrow structure that gradually narrows from the outer edge of the end of the needle knife front section 312 to the center, and the needle knife blade 311 is arranged at the front end of the needle knife rear section 313; the front end of the needle knife with an arrow-like structure, after the needle knife blade 311 cuts the annular sheath or hyperplasia target point that is pinched, the needle knife rear section 313 with the arrow structure further loosens the pinching point, and the needle knife rear section 313 with the triangular prism structure at the back, especially the top center of the needle knife, further loosens and supports the loosened annular sheath or hyperplasia target point.
[0033] In a specific embodiment, Figure 4-Figure 11 As shown, the needle knife blade 311 is a flat vertical blade arranged longitudinally, so that when the needle knife of the utility model is pushed forward, the flat vertical blade can well loosen the compressed human tissue, such as the annular sheath or the hyperplastic target point.
[0034] In another specific embodiment, the needle blade 311 is an inclined flat blade that inclines from a high point at the proximal end to a low point at the distal end. Such a structure can more quickly cut through compressed human tissues, such as the annular sheath or hyperplastic target points.
[0035] In a specific embodiment, the front end of the needle knife bottom 32 is provided with a circular chamfer, which facilitates the needle knife of the utility model to be pushed forward, and the circular chamfer design can avoid damaging blood vessels and nerves.
[0036] In a specific embodiment, the needle knife body and the needle knife portion 31 have a smooth transition, which facilitates the forward advancement of the needle knife of the utility model, and the smooth transition design can avoid damaging blood vessels and nerves.
[0037] In a specific embodiment, the needle knife body and the needle knife bottom 32 have a smooth transition, which is convenient for pushing the needle knife of the utility model forward, and the smooth transition design can avoid damaging blood vessels and nerves.
[0038] In a specific embodiment, the needle knife body and the needle knife bottom 32 have a smooth transition, which is convenient for pushing the needle knife of the utility model forward, and the smooth transition design can avoid damaging blood vessels and nerves.
[0039] In a specific embodiment, the bending angle of the needle blade body 20 is set to 120°-150°, so that the central axis of the needle blade 311 at the front end can be staggered at a large angle with the central line of the needle handle 10, so that when the operator holds the needle handle 10 for operation, the needle blade body 20 and the needle blade 311 at the front end have a larger operating space, and the operator has a wider operating field. Further, it is preferred that the bending angle of the needle blade body 20 is 120°, 135° or 150.
[0040] The utility model also provides a release device for releasing compressed soft tissues of the human body, such as Figure 3 As shown, human tissues include muscles, nerves, tendon sheaths and fascia, etc., and the release device includes an ultrasonic instrument 100 and the curved needle knife. The ultrasonic probe of the ultrasonic instrument 100 is placed on the compressed human tissue to be released, and the curved needle knife is inserted from the side of the compression point to be released, and then slowly pushed to the target position to release the compressed human tissue to be released, and release the compressed human tissue to be released, eliminate the aseptic inflammation of the human soft tissue, improve the microcirculation of the diseased part and its surrounding tissues, and finally achieve the purpose of curing the disease caused by compression; on the one hand, it can prevent the needle knife from directly piercing into the contents of the annular structure, and on the other hand, when the operator holds the needle knife handle 10 for operation, the needle knife body 20 and the needle knife blade 311 at the front end have a larger operating space, so as to avoid affecting the operation of the ultrasonic instrument 100, so that the operator has a wider operating field of view, and thus better releases the compressed soft tissue of the human body.
[0041] The scheme of the utility model has been described in detail above with reference to the accompanying drawings. In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. Those skilled in the art should also know that the actions and modules involved in the specification are not necessarily required for the utility model. In addition, it can be understood that the steps in the method of the embodiment of the utility model can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the utility model can be merged, divided and deleted according to actual needs.
[0042] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.
Claims
1. A curved needle knife, characterized in that: It includes a needle knife handle, a needle knife body and a needle knife head. The needle knife body is designed to be curved. The needle knife head includes a needle knife base at the bottom and a needle knife part arranged on the needle knife base. The needle knife base is a semi-cylindrical structure in which the needle knife body continues to extend at its end. A needle knife blade is arranged at the front end of the needle knife part.
2. The curved needle knife according to claim 1, characterized in that: The needle knife part includes a needle knife front section with a triangular prism structure and a needle knife rear section extending from the needle knife front section. The needle knife rear section is an arrow structure that gradually narrows from the outer edge of the end of the needle knife front section to the center, and the needle knife blade is arranged at the front end of the needle knife rear section.
3. The curved needle knife according to claim 1, characterized in that: The needle blade is an inclined flat blade inclined from a high position at the proximal end to a low position at the distal end, or the needle blade is a flat vertical blade arranged longitudinally.
4. The curved needle knife according to claim 1, characterized in that: The front end of the needle knife bottom is arranged with an arc chamfer.
5. The curved needle knife according to claim 1, characterized in that: There is a smooth transition between the needle blade body and the needle blade portion.
6. The curved needle knife according to claim 1, characterized in that: The needle blade body and the needle blade bottom have a smooth transition.
7. The curved needle knife according to claim 1, characterized in that: The needle blade body and the needle blade bottom have a smooth transition.
8. The curved needle knife according to claim 1, characterized in that: The needle blade body comprises a first needle blade body segment connected to the needle blade handle and a second needle blade body segment connected to the first needle blade body segment. The first needle blade body segment and the second needle blade body segment are bent, and the bending angle is set to 120°-150°.
9. The curved needle knife according to claim 2, characterized in that: The bending angle of the needle blade is 120°, 135° or 150°.
10. A device for releasing compressed soft tissue of human body, characterized in that: The invention comprises an ultrasonic instrument and the curved needle knife as described in any one of claims 1 to 9.