Perspective lower angle adjusting and locking device

Abstract

A perspective lower angle adjusting and locking device relates to the technical field of positioning devices and comprises an adjusting rod, a swing seat arranged in a swing mode is hinged to the adjusting rod, a positioning groove is formed in the adjusting rod, and a plurality of positioning holes are formed in the swing seat side by side along the hinge center. And the positioning pin is inserted to lock the angle between the adjusting rod and the swinging seat. The puncture guiding device solves the problems that in the prior art, due to the fact that a puncture guiding device is connected with a large number of guiding structures, the gravity borne by an angle positioning structure is large, under the action of gravity and operation of operators, the phenomenon of displacement between a bolt and an arc-shaped groove is extremely prone to occurring, perspective positioning work needs to be conducted again, and the cost is high. And the puncture efficiency is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning devices, in particular to a perspective angle adjustment and locking device. Background Art

[0002] In surgical operations, especially orthopedic operations, it is sometimes necessary to insert the guide needle at a certain angle from the puncture point. When the needle entry point is on the body surface, even if the puncture angle is not precise enough, experienced people can complete it. Orthopedic operations often require the puncture point to be determined on the surface of the bone in the body. The puncture point is easy to determine in the case of open surgery. Currently, surgeries tend to be minimally invasive, and percutaneous punctures are increasing. How to determine the puncture point and direction has become a difficult problem.

[0003] Minimally invasive surgery is the development trend of surgical operations. Open surgeries are becoming less and less, and percutaneous small incision surgeries are becoming more and more. Higher requirements are placed on the surgeon's skills, especially for bone-related punctures. The puncture point must be positioned at a certain point on the bone surface, and then penetrated at a certain angle. Even for experienced surgeons, repeated fluoroscopy is required, which takes a long time for the operation and increases the chance of infection. Too much fluoroscopy can also cause damage. Inaccurate puncture increases the risk of surgery. Now electromagnetic navigation can allow accurate puncture, and fluoroscopy is rarely required, but the preparatory time is long, and the overall operation time has no advantage. Moreover, the equipment is expensive and cannot be popularized in low-level hospitals.

[0004] The prior art discloses a patent with a publication number of CN220360449U, which includes a mounting frame, a horizontally sliding crossbar inserted on the mounting frame, a lateral measuring rod inserted vertically sliding on the support end of the crossbar, and an anteroposterior measuring rod inserted horizontally sliding on the support end of the crossbar. The anteroposterior measuring rod can also be inserted horizontally sliding on the lower end of the lateral measuring rod. A rotating frame arranged in parallel with the crossbar is rotatably provided on the mounting frame, and a guide seat arranged vertically with the rotation center is rotatably provided on the rotating frame. The utility model solves the problem that the traditional technique of endoscopic discectomy requires fluoroscopic positioning of the puncture needle point and puncture path. The current puncture is not accurate enough, the number of fluoroscopy is too many, the risk of dura mater sac and nerve root damage is increased, the operation time is prolonged, and the patient and medical staff are exposed to too much radiation, which affects their health.

[0005] As the existing technologies including the above patents are used, their shortcomings are gradually exposed, mainly in the following aspects:

[0006] The angle positioning structure of the existing puncture guide device is realized by setting an arc groove and adopting a bolt and a threaded groove to adjust the locking position of the bolt in the arc groove, which requires tightening the bolt with force. Since the puncture guide device is connected to a large number of guide structures, the angle positioning structure is subjected to a large gravity. Under the action of gravity and the operation of the operator, displacement between the bolt and the arc groove is very likely to occur, resulting in the need to re-perform the perspective positioning work, thereby reducing the puncture efficiency.

[0007] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] In view of the defects in the prior art, the utility model solves the problem that in the traditional technology, since the puncture guide device is connected to a large number of guide structures, the angle positioning structure is subjected to a large gravity. Under the action of gravity and the operation of the operator, displacement between the bolt and the arc groove is very likely to occur, resulting in the need to re-perform the perspective positioning work and reducing the puncture efficiency.

[0009] In order to solve the above problems, the utility model provides the following technical solutions:

[0010] The perspective lower angle adjustment and locking device comprises an adjusting rod, on which a swing seat is hingedly arranged, a positioning groove is provided on the adjusting rod, and a plurality of positioning holes are arranged in parallel along the hinge center on the swing seat. When the positioning hole is aligned with the positioning groove, a positioning pin is inserted to lock the angle between the adjusting rod and the swing seat.

[0011] As an optimized solution, the positioning groove includes a first positioning groove and a second positioning groove located on both sides of the hinge center.

[0012] As an optimized solution, the positioning holes include a first positioning hole corresponding to the first positioning groove, and a second positioning hole corresponding to the second positioning groove.

[0013] As an optimized solution, two of the first positioning grooves and two of the second positioning grooves are arranged in parallel.

[0014] As an optimized solution, the first positioning holes and the second positioning holes are respectively provided with two rows corresponding to the two first positioning grooves and the second positioning grooves.

[0015] As an optimized solution, the angle range of the line connecting the adjacent first positioning holes to the hinge center of the swing seat, and the angle range of the line connecting the adjacent second positioning holes to the hinge center of the swing seat are both 4-20 degrees.

[0016] As an optimized solution, the upper end of the adjusting rod is provided with a disc-shaped section, the swing seat includes side plates separated on both sides of the disc-shaped section, the two side plates are hinged to the disc-shaped section, and the positioning hole is opened on one of the side plates.

[0017] As an optimized solution, a connecting section is fixedly connected between the upper ends of the two side plates.

[0018] As an optimized solution, the connecting section is connected to the puncture guide device.

[0019] As an optimized solution, the first positioning hole and the second positioning hole are arranged vertically, and an indicator line that is aligned with the hinge center is vertically provided on the side wall of the adjustment rod.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] After the swing seat adjusts the puncture angle, observe which positioning hole is aligned with the positioning groove, and then insert the positioning pin to lock the angle between the adjusting rod and the swing seat. The structure is simple and the adjustment is fast. After positioning, the adjusting rod and the swing seat are locked, and the angle between the adjusting rod and the swing seat will not change due to the operation of the operator and the gravity of the puncture guide device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the first positioning groove and the second positioning groove of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the connecting section of the utility model.

[0026] In the figure: 1-adjusting rod; 2-swinging seat; 3-first positioning hole; 4-second positioning hole; 5-first positioning groove; 6-second positioning groove; 7-connecting section; 8-positioning pin; 9-puncture guide device; 10-indicator line. DETAILED DESCRIPTION

[0027] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0028] like Figures 1 to 3 As shown, the perspective lower angle adjustment and locking device includes an adjusting rod 1, a swing seat 2 with a swing setting is hinged on the adjusting rod 1, a positioning groove is opened on the adjusting rod 1, and a plurality of positioning holes are arranged in parallel along the hinge center on the swing seat 2. When the positioning hole is aligned with the positioning groove, the positioning pin 8 is inserted to lock the angle between the adjusting rod 1 and the swing seat 2.

[0029] The positioning grooves include a first positioning groove 5 and a second positioning groove 6 located on both sides of the hinge center.

[0030] The positioning holes include a first positioning hole 3 corresponding to the first positioning groove 5 , and a second positioning hole 4 corresponding to the second positioning groove 6 .

[0031] Two first positioning grooves 5 and two second positioning grooves 6 are respectively arranged in parallel.

[0032] The first positioning holes 3 and the second positioning holes 4 are respectively provided with two rows corresponding to the two first positioning grooves 5 and the second positioning grooves 6 .

[0033] The angle range of the line connecting the adjacent first positioning holes 3 to the hinge center of the swing seat 2 and the angle range of the line connecting the adjacent second positioning holes 4 to the hinge center of the swing seat 2 are both 4-20 degrees.

[0034] The upper end of the adjusting rod 1 is provided with a disc-shaped section, and the swing seat 2 includes side plates separated on both sides of the disc-shaped section. The two side plates are hinged to the disc-shaped section, and a positioning hole is opened on one of the side plates.

[0035] A connecting section 7 is fixedly connected between the upper ends of the two side plates.

[0036] The connecting section 7 is connected to the puncture guide device 9 .

[0037] The first positioning hole 3 and the second positioning hole 4 are arranged vertically, and an indicator line 10 which is aligned with the hinge center is vertically provided on the side wall of the adjusting rod 1. It is possible to visually observe which positioning hole is on the extension line of the indicator line 10, and then insert the positioning pin 8 into the corresponding positioning hole to achieve rapid positioning.

[0038] The working principle of this device is:

[0039] After the swing seat 2 adjusts the puncture angle, observe which positioning hole is aligned with the positioning slot. The positioning hole on the extension line of the indicator line 10 is not necessarily directly opposite the positioning slot. If the positioning hole is slightly less coaxial with the positioning slot, because the front end of the positioning pin is tapered, it can be inserted with a little force, and the positioning hole and the positioning slot are passively aligned during the insertion process; the swing seat 2 can also be actively and slightly adjusted to align the adjacent positioning holes with the positioning slots. Slight adjustment of the swing seat 2 will not affect the final puncture work. After determining the angle, insert the positioning pin 8 to lock the angle between the adjusting rod 1 and the swing seat 2. The structure is simple and the adjustment is fast. After positioning, the adjusting rod 1 and the swing seat 2 are locked, and the angle between the adjusting rod 1 and the swing seat 2 will not change due to the operation of the operator and the gravity of the puncture guide device 9.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. Angle adjustment and locking device under perspective, characterized by: The invention comprises an adjusting rod (1), a swing seat (2) being hingedly connected to the adjusting rod (1), a positioning groove being provided on the adjusting rod (1), and a plurality of positioning holes being arranged in parallel along the hinge center on the swing seat (2). When the positioning holes are aligned with the positioning grooves, a positioning pin (8) is inserted to lock the angle between the adjusting rod (1) and the swing seat (2).

2. The perspective angle adjustment and locking device according to claim 1, characterized in that: The positioning groove comprises a first positioning groove (5) and a second positioning groove (6) which are located on both sides of the hinge center.

3. The perspective angle adjustment and locking device according to claim 2, characterized in that: The positioning holes include a first positioning hole (3) corresponding to the first positioning groove (5), and a second positioning hole (4) corresponding to the second positioning groove (6).

4. The perspective angle adjustment and locking device according to claim 3, characterized in that: Two of the first positioning grooves (5) and two of the second positioning grooves (6) are arranged in parallel.

5. The perspective angle adjustment and locking device according to claim 4, characterized in that: The first positioning hole (3) and the second positioning hole (4) are respectively provided with two rows corresponding to the two first positioning grooves (5) and the two second positioning grooves (6).

6. The perspective angle adjustment and locking device according to claim 5, characterized in that: The angle range of the line connecting the adjacent first positioning holes (3) to the hinge center of the swing seat (2), and the angle range of the line connecting the adjacent second positioning holes (4) to the hinge center of the swing seat (2) are both 4-20 degrees.

7. The perspective angle adjustment and locking device according to claim 1, characterized in that: The upper end of the adjusting rod (1) is provided with a disc-shaped section, the swing seat (2) comprises side plates separated on both sides of the disc-shaped section, the two side plates are hinged to the disc-shaped section, and the positioning hole is opened on one of the side plates.

8. The perspective angle adjustment and locking device according to claim 7, characterized in that: A connecting section (7) is fixedly connected between the upper ends of the two side plates.

9. The perspective angle adjustment and locking device according to claim 8, characterized in that: The connecting section (7) is connected to the puncture guide device (9).

10. The perspective angle adjustment and locking device according to claim 3, characterized in that: The first positioning hole (3) and the second positioning hole (4) are arranged vertically, and an indicator line which is aligned with the hinge center is vertically arranged on the side wall of the adjustment rod (1).

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