A bracket for carpal tunnel fluoroscopy

Abstract

The present invention discloses a novel support for carpal tunnel fluoroscopy, which relates to the field of orthopedic treatment equipment. The first perspective rod is arranged on the adjustment rod, and the height adjustment is realized under the action of the adjustment rod; the second perspective rod is arranged on the first perspective rod through the rotation of the second connecting rod, and is locked by a lock. The beneficial effects of the present invention are that the medical staff does not need to limit the patient's forearm, the operation is convenient, and the medical staff does not need to hold the patient's arm for fluoroscopy, which reduces the exposure to radiation; the perspective rod can be fluoroscopic, and the material is polyetheretherketone, which is routinely disinfected and ready for use, which reduces the use of other fixings such as plastic boxes, and also reduces the disadvantages of the fixings not being firmly fixed and the angle being not good; the support can fix the angle of the wrist very well, which is convenient for fluoroscopy and has high clinical repeatability; it does not require high-end intraoperative CT, which is convenient for promotion in a large number of grassroots hospitals.

Description

Technical Field

[0001] The invention relates to the field of orthopedic treatment equipment, in particular to a bracket for carpal tunnel fluoroscopy. Background Art

[0002] Distal radius fracture is one of the most common fractures in clinic. Volar bone plate is a common method for treating unstable distal radius fracture. Dorsal protrusion of screw is the main cause of irritation and even rupture of dorsal extensor tendon. Conventional anteroposterior and lateral fluoroscopy cannot solve this problem. The inventor proposed and improved the carpal tunnel fluoroscopy to monitor the dorsal cutting of screw and distal radioulnar joint input during surgery (Chinese Journal of Orthopaedics, June 2017, Vol. 37, No. 11).

[0003] When performing carpal tunnel fluoroscopy, the patient needs to flex the elbow, dorsiflex the wrist, and supinate the forearm. This is usually done by the surgeon or assistant wearing traction, which requires exposure to radiation and causes damage to the body. If a sterilized plastic box is used to fix the forearm and wrist, radiation exposure is reduced, but the disadvantage is that the fixation is unreliable, and the wrist position, angle, or the angle of the fluoroscopy tube needs to be adjusted multiple times to obtain a satisfactory fluoroscopic image, which greatly prolongs the operation time, and the corresponding surgical risk and infection rate will increase. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the wrist position and angle can be well fixed, the height can be adjusted to suit patients of different body shapes, and a bracket for carpal tunnel fluoroscopy is designed.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a bracket for carpal tunnel position fluoroscopy, comprising: an adjusting rod; a first perspective rod, the first perspective rod is arranged on the adjusting rod, and the height adjustment is achieved under the action of the adjusting rod; and a second perspective rod, the second perspective rod is rotatably arranged on the first perspective rod through a second connecting rod and locked by a lock.

[0006] Furthermore, the second connecting rod is arranged at two ends of the first perspective rod, and when the second perspective rod is close to the adjusting rod, the second perspective rod abuts against the adjusting rod.

[0007] Furthermore, the lock includes a fixed block, a screw and a rotating rod, the fixed block and the screw are fixedly arranged, the rotating rod is slidably arranged in the fixed block, the screw is rotatably arranged in the first perspective rod, the second connecting rod is arranged between the first perspective rod and the fixed block, and the screw passes through the second connecting rod.

[0008] Furthermore, the first perspective rod is fixedly arranged on the adjustment rod through a first connecting rod.

[0009] Furthermore, the first perspective rod and the second perspective rod are made of polyetheretherketone.

[0010] Furthermore, a base is provided at the bottom end of the adjusting rod, and the adjusting rod and the base are rotatably arranged.

[0011] Furthermore, the adjusting rod is an elongated sleeve rod.

[0012] Furthermore, an auxiliary rod is provided on the side of the adjusting rod.

[0013] The beneficial effects of the present invention are: there is no need for medical staff to restrict the patient's forearm, the operation is convenient, and there is no need for medical staff to hold the patient's arm for fluoroscopy, which reduces radiation exposure; the fluoroscopy rod can be used for fluoroscopy, and the material is polyetheretherketone, which is routinely disinfected and ready for use, reducing the use of other fixings such as plastic boxes, and also reducing the disadvantages of loose fixings and poor angles of fixings; the bracket can fix the angle of the wrist very well, which is convenient for fluoroscopy and has high clinical repeatability; there is no need for high-end intraoperative CT, which is convenient for promotion in a large number of grassroots hospitals. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0015] Figure 1 It is a schematic diagram of the structure of a bracket for carpal tunnel fluoroscopy;

[0016] Figure 2 yes Figure 1 A top view of

[0017] Figure 3 yes Figure 2 A partial enlarged view of middle A;

[0018] Figure 4 yes Figure 1 A partial enlarged view of B in the middle;

[0019] Figure 5 The invention is a schematic diagram of the structure of a bracket for carpal tunnel perspective, wherein the second perspective rod contacts the adjustment rod.

[0020] In the above figures, 1, adjusting rod; 2, first perspective rod; 3, second perspective rod; 4, second connecting rod; 5, locking buckle; 501, fixing block; 502, screw rod; 503, rotating rod; 6, first connecting rod; 7, base; 8, auxiliary rod. DETAILED DESCRIPTION

[0021] Now, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0022] A support for carpal tunnel fluoroscopy, such as Figures 1 to 5 As shown, it includes an adjusting rod 1, a first perspective rod 2 and a second perspective rod 3.

[0023] refer to Figure 2 The first perspective rod 2 is arranged on the adjusting rod 1, and the height is adjusted under the action of the adjusting rod 1. Regarding the connection relationship between the first perspective rod 2 and the adjusting rod 1, firstly, the first perspective rod 2 is fixedly arranged on the adjusting rod 1 through the first connecting rod 6; secondly, the first perspective rod 2 and the adjusting rod 1 can also be movably connected, but the stability of the first perspective rod 2 must be ensured when the first perspective rod 2 is in use.

[0024] To adjust the height of the first perspective rod 2, refer to Figure 1 The adjusting rod 1 is an elongated sleeve rod. The height of the adjusting rod 1 is increased by rotating the circular sleeve in the middle, thereby adjusting the height of the first perspective rod 2. Considering the length of the arm, the height adjustment range does not need to be too large. Or, refer to Figure 4 The bottom end of the adjusting rod 1 is provided with a base 7, and the adjusting rod 1 and the base 7 are rotatably arranged. The screwing length between the base 7 and the adjusting rod 1 can also be used to fine-tune the height of the first perspective rod 2. Although the base 7 can be used to provide support, its support strength is difficult to meet the requirements, so an auxiliary rod 8 can be set on the side of the adjusting rod 1.

[0025] refer to Figure 2 The second perspective rod 3 is rotatably arranged on the first perspective rod 2 through the second connecting rod 4 and is locked by the lock buckle 5. The function of the lock buckle 5 is to fix the position between the second perspective rod 3 and the first perspective rod 2.

[0026] Regarding the lock 5, the present application provides a solution that is easy to implement, refer to Figure 2 and Figure 3 The lock 5 includes a screw 502, a fixed block 501 and a rotating rod 503. The fixed block 501 and the screw 502 are fixedly arranged. The rotating rod 503 is slidably arranged in the fixed block 501. The screw 502 is rotatably arranged in the first perspective rod 2. The second connecting rod 4 is arranged between the first perspective rod 2 and the fixed block 501, and the screw 502 passes through the second connecting rod 4.

[0027] The fixing block 501 is rotated by the rotating rod 503, and the screw rod 502 is moved outward, and the second connecting rod 4 between the fixing block 501 and the first perspective rod 2 becomes loose. At this time, the position adjustment between the first perspective rod 2 and the second perspective rod 3 can be achieved by rotating the second connecting rod 4. When the suitable position is reached, the rotating rod 503 is rotated in the opposite direction to fix the second connecting rod 4. Here, it can be achieved by slightly rotating the rotating rod 503, and there is no stuck situation. The rotating rod 503 can slide in the fixing block 501, which can reduce the length of the rotating rod 503 and facilitate operation and control.

[0028] When in use, the medical staff adjusts the height of the first perspective rod 2 and the position between the first perspective rod 2 and the second perspective rod 3 according to the patient's (or suspected patient's) condition. Under the guidance of the medical staff, the patient (or suspected patient) flexes the elbow, supinates the forearm, dorsiflexes the wrist to the maximum extent, places the hand between the first perspective rod 2 and the second perspective rod 3, with the back of the hand resting on the first perspective rod 2 and the fingers clenched on the second perspective rod 3. During this process, the medical staff can also fine-tune the height of the first perspective rod 2 and the position between the first perspective rod 2 and the second perspective rod 3 according to the actual situation. Patient

[0029] The carpal tunnel of the patient (or suspected patient) is revealed, and the patient's joint is fluoroscopically examined.

[0030] On the basis of the above, the second connecting rod 4 is arranged at both ends of the first perspective rod 2. When the second perspective rod 3 is close to the adjustment rod 1, the second perspective rod 3 and the adjustment rod 1 are against each other. Figure 5 At this time, when in use, the back of the hand can be directly placed on the second perspective rod 3, and the fingers can be clenched on the first perspective rod 2. This design expands the scope of use and facilitates the storage of the bracket.

[0031] Considering that the bracket needs to be used for perspective, the first perspective rod 2 and the second perspective rod 3 face the instrument, and the material selected for the first perspective rod 2 and the second perspective rod 3 is polyetheretherketone.

[0032] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. For those skilled in the art, as long as there is no structural conflict, the technical solutions recorded in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A support for carpal tunnel fluoroscopy, characterized in that: include: An adjusting rod (1), wherein the adjusting rod (1) is an elongated sleeve rod, a base (7) is provided at the bottom end of the adjusting rod (1), and the adjusting rod (1) and the base (7) are rotatably arranged; A first perspective rod (2), wherein the first perspective rod (2) is arranged on the adjusting rod (1) and height adjustment is achieved under the action of the adjusting rod (1); as well as A second perspective rod (3), the second perspective rod (3) is rotatably arranged on the first perspective rod (2) via a second connecting rod (4) and is locked via a lock buckle (5); The second connecting rod (4) is arranged at both ends of the first perspective rod (2), and when the second perspective rod (3) is close to the adjustment rod (1), the second perspective rod (3) and the adjustment rod (1) are abutted against each other; The lock buckle (5) comprises a fixed block (501), a screw rod (502) and a rotating rod (503); the fixed block (501) and the screw rod (502) are fixedly arranged; the rotating rod (503) is slidably arranged in the fixed block (501); the screw rod (502) is rotatably arranged in the first perspective rod (2); the second connecting rod (4) is arranged between the first perspective rod (2) and the fixed block (501); and the screw rod (502) passes through the second connecting rod (4); The first perspective rod (2) is fixedly arranged on the adjustment rod (1) via a first connecting rod (6).

2. A support for carpal tunnel fluoroscopy according to claim 1, characterized in that: The material of the first perspective rod (2) and the second perspective rod (3) is polyetheretherketone.

3. The support for carpal tunnel fluoroscopy according to claim 1, characterized in that: An auxiliary rod (8) is provided on the side of the adjusting rod (1).

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