A wrist joint ulna positioner

Abstract

The utility model discloses a wrist joint ulna positioner, including the positioning base and horizontal direction adjusting lever, horizontal direction adjusting lever fixed mounting at the one side position department of positioning base, its positioning base's other side rotation formula is provided with longitudinal adjusting lever, and the inside of positioning base is provided with vertical channel, and the inside of its vertical channel is inserted with guide sleeve, and positioning needle movable type is inserted in the inside position department of guide sleeve, and its locking portion is embeddedly installed the one side position department of positioning base far away from horizontal direction adjusting lever, and the wrist joint ulna positioner is through the adhesion of positioning base and ulna and the three -dimensional adjustment function of adjusting mechanism, can accurately guide positioning needle to the ulna point of surgery required, improves the accuracy of positioning, reduces the operation error, through the design of adjusting mechanism makes the doctor can be in the operation process fast, conveniently adjust the positioner, does not need the complex operation step, has shortened the operation time, has improved the operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wrist joint ulna locators, and in particular to a wrist joint ulna locator. Background Technology

[0002] In the field of wrist joint injury treatment, TFCC (triangular fibrocartilage complex) insertion reconstruction is a key surgical procedure for repairing ulnar side injuries of the wrist joint. Precise ulnar positioning is the foundation for ensuring surgical success and promoting postoperative functional recovery in patients. Currently, traditional wrist joint ulnar positioning methods have many shortcomings. For example, the positioning operation relies on the surgeon's experience, and when adjusting the positioning position in three-dimensional space, there is a lack of precise adjustment structures, which makes it difficult to guarantee positioning accuracy and stability, and easily leads to positioning deviations, affecting the surgical outcome. In response to the above problems, the inventors designed a wrist joint ulnar positioning device. Summary of the Invention

[0003] The main purpose of this invention is to address the problem of the lack of a dedicated ulna locator in the existing technology.

[0004] To address the above problems, this utility model proposes a wrist joint ulna locator, comprising: Positioning base; A lateral adjusting rod is fixedly installed on one side of the positioning base, while a longitudinal adjusting rod is rotatably installed on the other side of the positioning base. A vertical channel is opened inside the positioning base, and a guide sleeve is inserted into the vertical channel; The positioning pin is movably inserted into the inside of the guide sleeve; The locking part is embedded in the positioning base on the side away from the lateral adjustment rod.

[0005] In one embodiment, the locking portion includes a circular hole; A round hole is provided on one side of the positioning base; A handle is inserted into the inside of its round hole, a baffle is fixedly installed on the inner side of the handle, and an insert is fixedly installed on the inner side of the baffle. A spring is attached to the handle, and the spring is also located inside the round hole.

[0006] In one embodiment, a limit cap is fixedly provided at the top end of the guide sleeve, and the limit cap has a circular hole inside, which is connected to the vertical channel.

[0007] In one embodiment, a telescopic arm is fixedly connected to one end of the longitudinal adjusting rod away from the transverse adjusting rod, and a connecting arm is sleeved on the other end of the telescopic arm. A fastening screw is screwed onto the connecting arm corresponding to the telescopic arm, and a ring is fixedly provided on the other end of the connecting arm.

[0008] In one embodiment, the guide sleeve has a positioning groove on its side.

[0009] In one embodiment, a threaded hole is provided at the right end of the lateral adjusting rod corresponding to the position of the longitudinal adjusting rod, and a through hole is provided at the position of the longitudinal adjusting rod corresponding to the position of the lateral adjusting rod. A locking limit cap is screwed into the threaded hole on the longitudinal adjusting rod, and the locking limit cap passes through the through hole on the longitudinal adjusting rod.

[0010] In one embodiment, the through hole on the longitudinal adjusting rod is provided with anti-slip texture around it. Beneficial effects

[0011] 1. This utility model of wrist joint ulna locator, through the fit between the locating base and the ulna and the three-dimensional adjustment function of the adjustment mechanism, can accurately guide the locating needle to the ulna position required for surgery, thereby improving the accuracy of positioning and reducing surgical errors. 2. The wrist joint ulnar locator of this utility model has an adjustable mechanism that allows doctors to quickly and conveniently adjust the locator during surgery without complicated operating procedures, thus shortening the operation time and improving the efficiency of surgery. 3. The wrist joint ulnar locator of this utility model ensures the stability of the locator during surgery through the anti-slip texture and tight fit design of the locating base, as well as the locking function of the adjustment mechanism, and reduces the surgical risks caused by the movement of the locator. 4. The wrist joint ulna locator of this utility model can lock the position of the guide sleeve through the design of the locking part, thus preventing the guide sleeve from moving during use.

[0012] 5. The wrist joint ulnar locator of this utility model, through the design of the telescopic arm, can make fine adjustments to the size according to the size of the ulna of different patients, thus making the use of the wrist joint ulnar locator more diverse and adaptable. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the wrist joint ulna locator of this utility model; Figure 2 This is a three-dimensional schematic diagram of the wrist joint ulna locator of this utility model. Figure 3This is a schematic diagram of the locking part structure of this utility model.

[0015] The annotations in the attached figures are explained as follows: 1. Limit cap; 2. Positioning base; 3. Lateral adjustment rod; 4. Locking limit cap; 5. Longitudinal adjustment rod; 6. Ring; 7. Positioning pin; 8. Handle; 9. Connecting forearm; 10. Telescopic arm; 11. Fastening screw; 12. Positioning tooth groove; 13. Round hole; 14. Baffle; 15. Spring; 16. Insert block; 17. Guide sleeve. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] To achieve the above-mentioned utility model objectives, such as Figure 1-3 As shown, this utility model provides a wrist joint ulna locator, including a positioning base 2 and a lateral adjustment rod 3. The lateral adjustment rod 3 is fixedly installed on one side of the positioning base 2, and a longitudinal adjustment rod 5 is rotatably provided on the other side of the positioning base 2. A vertical channel is opened inside the positioning base 2, and a guide sleeve 17 is inserted into the inside of the vertical channel. The positioning pin 7 is movably inserted into the inside of the guide sleeve 17. In this embodiment, when the ulnar locator is needed, the locating base 2 is first attached to the distal surface of the patient's ulna. Then, according to the surgical requirements, the position of the wrist joint ulnar locator is adjusted in three-dimensional space by adjusting the transverse adjustment rod 3 and the longitudinal adjustment rod 5. After the adjustment is completed, the locking knob is tightened to fix the position of the longitudinal adjustment rod 5. Finally, the locating pin 7 is inserted into the channel of the guide sleeve 17. Guided by the guide sleeve 17, the locating pin 7 is accurately inserted into the target site of the ulna, completing the ulnar locating operation and providing a precise locating basis for the subsequent TFCC insertion reconstruction.

[0018] Preferably, the inner surface of the positioning base 2 is provided with anti-slip texture, which conforms to the distal surface of the patient's ulna, thereby ensuring the stability of the base 2.

[0019] In another embodiment, the guide sleeve 17 has a positioning groove 12 on its side. Its locking part is embedded in the positioning base 2 on the side away from the horizontal adjustment rod 3. The locking part includes a round hole 13 opened in the inner position of one side of the positioning base 2. A handle 8 is inserted into the round hole 13. A baffle 14 is fixedly installed in the inner position of the handle 8. An insert block 16 is fixedly installed in the inner position of the baffle 14. A spring 15 is sleeved on the handle 8. The spring 15 is also located in the inner position of the round hole 13. In this way, when the guide sleeve 17 is pressed down, the positioning groove 12 opened on the guide sleeve 17 needs to be aligned with the insert block 16 of the locking part. When pressed down, the insert block 16 will be inserted into the positioning groove 12 of the guide sleeve 17, thereby achieving the locking and positioning of the guide sleeve 17 to a certain extent.

[0020] Preferably, a limiting cap 1 is fixedly provided at the top of the guide sleeve 17. The limiting cap 1 has a round hole inside, and the round hole is connected to the vertical channel. The positioning pin 7 is inserted into the inside of the limiting cap 1. The limiting cap 1 will limit the positioning pin 7, which can prevent the positioning pin from deviating during the operation and ensure the accuracy of positioning.

[0021] Preferably, a telescopic arm 10 is fixedly connected to one end of the longitudinal adjusting rod 5 away from the transverse adjusting rod 3, and a connecting arm 9 is sleeved on the other end of the telescopic arm 10. A fastening screw 11 is screwed onto the connecting arm 9 corresponding to the telescopic arm 10, and a ring 6 is fixedly provided on the other end of the connecting arm 9. In this way, the telescopic positions of the connecting arm 9 and the telescopic arm 10 can be adjusted, and then the fastening screw 11 can be used to press the telescopic arm 10, thereby achieving position locking of the two.

[0022] Preferably, a threaded hole is provided at the right end of the transverse adjusting rod 3 corresponding to the position of the longitudinal adjusting rod 5, and a through hole is provided at the position of the longitudinal adjusting rod 5 corresponding to the position of the transverse adjusting rod 3. A locking limit cap 4 is screwed into the threaded hole on the longitudinal adjusting rod 5, and the locking limit cap 4 passes through the through hole on the longitudinal adjusting rod 5. After adjusting the relative positions of the transverse adjusting rod 3 and the longitudinal adjusting rod 5, the locking limit cap 4 can be screwed into the threaded hole of the transverse adjusting rod 3, and then the locking limit cap 4 can press the longitudinal adjusting rod 5, thereby locking the adjusted positions of the two rods.

[0023] Preferably, the through hole on the longitudinal adjusting rod 5 is provided with anti-slip texture around it, which can increase the friction between the longitudinal adjusting rod 5 and the locking limit cap 4 and prevent the longitudinal adjusting rod 5 from rotating after locking.

[0024] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A wrist joint ulna locator, characterized in that, include: Positioning base (2); lateral adjustment rod (3), the lateral adjustment rod (3) is fixedly installed on one side of the positioning base (2), and the other side of the positioning base (2) is rotatably provided with a longitudinal adjustment rod (5); A vertical channel is opened inside the positioning base (2), and a guide sleeve (17) is inserted inside the vertical channel; a positioning pin (7) is movably inserted into the inside of the guide sleeve (17); a locking part is embedded in the positioning base (2) on the side away from the horizontal adjustment rod (3).

2. The wrist joint ulna locator as described in claim 1, characterized in that, The locking part includes a round hole (13); a round hole (13) is provided on the inner side of the positioning base (2); a handle (8) is inserted into the round hole (13), a baffle (14) is fixedly provided on the inner side of the handle (8), and a plug (16) is fixedly provided on the inner side of the baffle (14); a spring (15) is sleeved on the handle (8), and the spring (15) is also located inside the round hole (13).

3. The wrist joint ulna locator as described in claim 2, characterized in that, A limit cap (1) is fixedly installed at the top of the guide sleeve (17). The limit cap (1) has a round hole inside, and the round hole is connected to the vertical channel.

4. The wrist joint ulna locator as described in claim 3, characterized in that, The longitudinal adjusting rod (5) is fixedly connected to a telescopic arm (10) at one end away from the transverse adjusting rod (3). The other end of the telescopic arm (10) is fitted with a connecting arm (9). A fastening screw (11) is screwed onto the connecting arm (9) corresponding to the telescopic arm (10). A ring (6) is fixedly provided at the other end of the connecting arm (9).

5. A wrist joint ulna locator as described in claim 4, characterized in that, The guide sleeve (17) has a positioning groove (12) on its side.

6. The wrist joint ulna locator as described in claim 5, characterized in that, The right end of the lateral adjustment rod (3) is provided with a threaded hole corresponding to the position of the longitudinal adjustment rod (5), and the longitudinal adjustment rod (5) is provided with a through hole corresponding to the position of the lateral adjustment rod (3). A locking cap (4) is screwed into the threaded hole on the longitudinal adjustment rod (5), and the locking cap (4) passes through the through hole on the longitudinal adjustment rod (5).

7. The wrist joint ulna locator as described in claim 6, characterized in that, The through hole on the longitudinal adjusting rod (5) is surrounded by anti-slip texture.

Images