CN111839838B

CN111839838B - Adjustable tibia probe

Info

Publication number: CN111839838B
Application number: CN202010679001.9A
Authority: CN
Inventors: 王健; 魏崇斌; 黄仁宏; 毛联甲; 闵信群
Original assignee: Tianyan Medical Equipment Co ltd
Current assignee: Tianyan Medical Equipment Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2022-11-22
Anticipated expiration: 2040-07-15
Also published as: CN111839838A

Abstract

The invention discloses an adjustable tibial probe, which comprises a vertical rod, wherein a rotating rod is arranged at the upper end of the vertical rod, a sleeve is arranged outside the rotating rod, a probe is arranged in the middle of the vertical rod, a guide rod is arranged at the lower end of the vertical rod, a height adjusting mechanism is arranged in the middle of the rotating rod, a prompting mechanism is arranged at the lower end of the rotating rod, and a connecting mechanism is arranged on one side of the guide rod; the height adjusting mechanism can accurately adjust the height of the probe, the prompting mechanism makes a sound once when the height adjusting mechanism is adjusted by 1mm, a doctor can conveniently and accurately judge the adjusted height of the probe, the measurement precision is improved, the connecting mechanism can be very conveniently connected with the tibia osteotomy module, and the operation time is shortened.

Description

Adjustable tibia probe

Technical Field

The invention relates to the field of medical instruments, in particular to an adjustable tibial probe.

Background

The knee joint replacement operation is a process of removing damaged bones at the tail ends of thighbones and shinbones and implanting a prosthesis on the surfaces of the tail ends of the thighbones and the shinbones to replace the knee joints of a human body. The procedure is to resect the damaged cartilage surface of the femoral and tibial ends and part of the subchondral bone, then to position and crimp a metal femoral implant to the treated femoral end surface, then to position and crimp a metal tibial implant to the treated tibial end surface, and finally to insert a patellar component medially to the patella. In the process, the amount of the cut bone at the end of the tibia needs to be determined, and the current technology is that a doctor uses a tibial depth finder to determine the amount of the cut bone at the end of the tibia in the operation, the method is to insert the tibial depth finder into a tibial clamping component and then measure the distance between a tibial platform and a cut bone position, and various tibial depth finders which can be adjusted in height and cannot be adjusted in height are available in the market at present, but all have some defects:

1. in the prior art, the adjustable tibia depth finder has the disadvantages that the adjusting mode is not simple and convenient, the adjusting precision is uncertain, the adjusting height is not judged well, too much attention is required to be invested by a doctor, the adjusting and adjusting tibia descends, and the operation difficulty is increased;

2. in the prior art, the connection mode between the tibia depth finder and the tibia clamping component is not simple and convenient, and the operation time is wasted;

3. tibial plateau is not complete plane, but has the uneven face of the height of certain slope, and traditional probe only has horizontal segment and slope section, if on the probe tip contacted tibial plateau domatic, whether difficult judgement probe position placed suitably, can lead to the probe to have certain gradient, causes the probe measuring to cut the bone volume inaccurate.

Disclosure of Invention

The invention aims to provide an adjustable tibial probe to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: an adjustable tibial probe comprises a vertical rod, a rotating rod is arranged at the upper end of the vertical rod, the upper end of the vertical rod is inserted into the rotating rod and can rotate between the vertical rod and the rotating rod, a sleeve is arranged outside the rotating rod, the upper end of the sleeve is sleeved outside the rotating rod, the lower end of the sleeve is sleeved outside the vertical rod, a probe is arranged in the middle of the vertical rod, the probe is horizontally arranged relative to the vertical rod, a guide rod is arranged at the lower end of the vertical rod, the guide rod is horizontally arranged relative to the vertical rod, a height adjusting mechanism is arranged in the middle of the rotating rod and used for adjusting the height of the probe, a prompting mechanism is arranged at the lower end of the rotating rod, the prompting mechanism makes a sound every time when the probe is adjusted by 1mm, a doctor can accurately judge the height of the probe adjustment conveniently, and a connecting mechanism is arranged on one side of the guide rod, the connecting mechanism can be very conveniently connected with a tibia osteotomy module, the height adjusting mechanism comprises a long through hole, a square through hole, a spiral through hole, a circular through hole and a pin, the position corresponding to the vertical rod and the probe is provided with the long through hole, the height of the long through hole is the height amount which can be adjusted by the probe, the position corresponding to the sleeve and the probe is provided with the square through hole, the cross section shape of the square through hole is consistent with the cross section shape of the probe, the probe can be stably held while the height of the probe is adjusted, the probe is prevented from shaking, so the cross section shape of the square through hole can be changed along with the cross section shape of the probe, the spiral through hole is arranged on the rotating rod and is of a spiral ascending structure, the position corresponding to the sleeve and the spiral through hole is provided with the circular through hole, and the pin is inserted into the circular through hole and the spiral through hole, in the pin is fixed in circular through-hole, the probe inserts in square through-hole and microscler through-hole, when using external force to rotate the dwang, takes place relative rotation between dwang and vertical pole, the sleeve, and the relative position of pin and spiral through-hole changes, and the pin is risen or descends by the guide of spiral through-hole, drives the sleeve and rises or descend, and square through-hole in the sleeve drives the probe and rises or descend, and the relative position of probe and microscler through-hole changes, and the height of probe is adjusted and is accomplished.

Preferably, the upper end that corresponds with spiral through-hole on the dwang is provided with the scale, the position that sleeve and scale correspond is provided with observes the hole, and when external force rotated the dwang, the sleeve was done and is risen or descending motion, and when rising or descended specific height, corresponding scale corresponded with observe the hole and correspond, can make things convenient for the doctor to make clear and definite the height-adjusting of probe.

Preferably, the dwang upper end is provided with a handle, and a handle is used for rotating the dwang.

Preferably, suggestion mechanism includes shallow slot, deep trouth, a spring, a ball, the position that dwang lower extreme and vertical pole are connected is provided with a plurality of shallow slots, a plurality of shallow slots equidistant setting, and enclose into an annular, the position of vertical pole and a plurality of shallow trouth is provided with the deep trouth, the deep trouth has two, and the line of two deep trouths passes the center of dwang cross section, be provided with a spring in the deep trouth, a spring upper end is provided with a ball, a ball upper end and shallow trouth contact, shallow slot and scale one-to-one, when external force rotated the dwang, vertical pole did not rotate, took place the interference between dwang and a ball, and a spring is compressed, runs into next shallow slot until a ball, and a spring kick-backs and suppress a ball to next shallow slot in, produces the vibration between a ball and the shallow trouth, sends the sound, explains that the probe has adjusted 1 mm's height.

Preferably, the connecting mechanism comprises a stop block, a press block, a second spring, a fixed column, a D-shaped hole, a column hole, a D-shaped rod, a ball hole and a second ball, the stop block is arranged in the middle of the guide rod and integrally formed with the guide rod, the press block is arranged on one side of the stop block and comprises a vertical press block and a horizontal press block, the second spring is arranged between the vertical press block and the stop block, the second spring is fixed in the stop block, the horizontal press block and one end of the guide rod, which is far away from the vertical rod, are in contact, the fixed column is arranged at the lower end of the guide rod, which corresponds to the horizontal press block, the fixed column is inserted into the guide rod, the fixed column is inserted into an opening of the tibia osteotomy module, the device can be fixed on the tibia osteotomy module, so that the height of the osteotomy is measured by using a probe, the D-shaped hole is arranged in the middle of the horizontal press block, the novel tibia fracture fixation device is characterized in that a column hole is formed in the position, corresponding to the D-shaped hole, of the fixed column, a D-shaped rod is arranged in the D-shaped hole and the column hole, the cross section of the D-shaped hole and the cross section of the D-shaped rod are D-shaped, a ball hole is formed in the middle of the fixed column, one end of the ball hole is communicated with the column hole, the other end of the ball hole is communicated with the outside of the fixed column, a second ball is arranged in the ball hole, one end of the second ball extends out of the fixed column under the condition that external force does not interfere with an opening of a tibia osteotomy module and plays a fixing role, when no external force acts, the second spring sequentially generates pre-tightening force on the vertical pressing block, the horizontal pressing block and the D-shaped rod, and is compressed when the vertical pressing block is pressed by external force, the vertical pressing block drives the horizontal pressing block to rotate, the D-shaped rod rotates in the column hole, and the pre-tightening force on the second ball is cancelled after the D-shaped rod rotates.

Preferably, the lower extreme that sleeve and square through hole correspond is provided with the bullet arm, play the arm and have a pressure to the probe all the time, prevent that the probe from rocking, increase the stability and the measurement accuracy of probe.

Preferably, the probe includes the horizontal segment, slope section and vertical section, tibial plateau is not complete plane, but the uneven face of height that has certain slope, and traditional probe only has horizontal segment and slope section, if the probe tip contacts tibial plateau on domatic, be difficult to judge whether the probe position is placed suitably, can lead to the probe to have certain gradient, it is inaccurate to cause the measured bone cutting volume of probe, the pointed end in this device is vertical section, if the probe tip contacts tibial plateau on domatic, observe the angle of probe tip and tibial plateau easily, whether the probe position is placed suitably is conveniently judged, be difficult to cause measuring error.

Preferably, a second handle is arranged on one side of the probe, and the position of the probe can be conveniently adjusted by holding the second handle with a hand.

Preferably, connect through the connecting rod between vertical pole and the guide bar, swing joint between connecting rod and vertical pole, the guide bar, connecting rod upper portion is provided with the clamping ring, the connecting rod middle part is provided with saddle-shaped gasket, saddle-shaped gasket and clamping ring all make and have certain resistance between connecting rod and vertical pole, the guide bar, also need angle regulation when the probe height-adjusting, the back is fixed to the guide bar angle, and external force acts on the angle of rotating the adjustable probe of vertical pole, and saddle-shaped gasket and clamping ring can be ensured not having external force to act on, relatively fixed between vertical pole and the guide bar, do not take place the rotation easily.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the height adjusting mechanism of the adjustable tibial probe, the rotating rod is rotated by external force, the sleeve can be driven to ascend or descend, the probe is further driven to be adjusted up and down, the height of the probe can be adjusted very simply and conveniently, the design is simple and reliable, and the adjustable range is large;

2. according to the invention, when the rotating rod is rotated by external force, the height scale adjusted by the probe is clearly displayed at the observation hole, so that a doctor can conveniently and clearly determine the adjustment height of the probe at any time;

3. according to the prompting mechanism, when the rotating rod is rotated by an external force, the first ball is rolled into the different shallow grooves, the first ball and the second ball are mutually interfered to make a sound, and the shallow grooves and the scales are in one-to-one correspondence, so that a doctor can judge the adjustment height of the probe through the sound, and the operation of the doctor is facilitated;

4. according to the connecting mechanism, when no external force is applied, the pretightening force of the second spring presses the second ball into the open hole of the tibial osteotomy module, so that the tibial osteotomy module and the device are conveniently connected and fixed, when the vertical pressing block is pressed by external force, the pressing force of the second ball disappears, the device and the tibial osteotomy module can be separated, and the operation is very convenient;

5. according to the invention, the elastic arm arranged on the sleeve always applies pressure to the probe, so that the probe is prevented from shaking, and the stability and the measurement precision of the probe are improved;

6. the tip of the probe is a vertical section, if the probe tip contacts the slope of the tibial platform, the angle between the probe tip and the tibial platform is easy to observe, whether the probe is properly placed or not is convenient to judge, and the measurement error is not easy to cause;

7. the angle of the probe can be adjusted by 360 degrees, after the guide rod is fixed, external force acts on the rotating vertical rod to adjust the angle of the probe, and the saddle-shaped gasket and the pressing ring can ensure that the vertical rod and the guide rod are relatively fixed and cannot easily rotate when no external force acts, so that the probe cannot easily rotate during measurement.

Drawings

FIG. 1 is a first perspective view of an adjustable tibial probe in accordance with the present invention;

FIG. 2 is a second perspective view of the adjustable tibial probe of the present invention;

FIG. 3 is a perspective view of the sleeve of the present invention;

FIG. 4 is a perspective view of a swivelling lever of the present invention;

FIG. 5 is a perspective view of a vertical pole of the present invention;

FIG. 6 is a third perspective view of the adjustable tibial probe of the present invention;

FIG. 7 is a perspective view of a stationary post according to the present invention;

FIG. 8 is a perspective view of a probe of the present invention;

FIG. 9 is a perspective view of the connecting rod, compression ring, saddle washer of the present invention.

Reference numerals are as follows: 1. a vertical rod; 2. rotating the rod; 3. a sleeve; 4. a probe; 5. a guide rod; 6. an elongated through hole; 7. a square through hole; 8. a spiral through hole; 9. a circular through hole; 10. a pin; 11. calibration; 12. an observation hole; 13. a first handle; 14. shallow-groove; 15. deep grooves; 16. a first spring; 17. a first ball; 18. a stopper; 19. a vertical briquetting; 20. horizontal briquetting; 21. a second spring; 22. fixing the column; 23. a D-shaped hole; 24. a post hole; 25. a D-shaped rod; 26. a ball hole; 27. a second ball; 28. a spring arm; 29. a horizontal segment; 30. an inclined section; 31. a vertical section; 32. a second handle; 33. a connecting rod; 34. pressing a ring; 35. a saddle shaped washer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment is as follows: referring to fig. 1, in the present invention, an adjustable tibial probe includes a vertical rod 1, a rotating rod 2 is disposed at an upper end of the vertical rod 1, an upper end of the vertical rod 1 is inserted into the rotating rod 2, and the vertical rod 1 and the rotating rod 2 are rotatable, a sleeve 3 is disposed outside the rotating rod 2, an upper end of the sleeve 3 is sleeved outside the rotating rod 2, a lower end is sleeved outside the vertical rod 1, a probe 4 is disposed in a middle portion of the vertical rod 1, the probe 4 is horizontally disposed with respect to the vertical rod 1, a guide rod 5 is disposed at a lower end of the vertical rod 1, the guide rod 5 is horizontally disposed with respect to the vertical rod 1, a height adjusting mechanism is disposed in a middle portion of the rotating rod 2, the height adjusting mechanism is used for adjusting a height of the probe 4, a prompting mechanism is disposed at a lower end of the rotating rod 2, when the probe 4 is adjusted by 1mm, the prompting mechanism makes a sound once, which is convenient for a doctor to accurately judge a height of the probe adjustment, a connection mechanism is disposed at one side of the guide rod 5, the connecting mechanism can be very conveniently connected with a tibia osteotomy module, please refer to fig. 2-3, the height adjusting mechanism comprises a long through hole 6, a square through hole 7, a spiral through hole 8, a round through hole 9 and a pin 10, the vertical rod 1 and the probe 4 are provided with the long through hole 6 at corresponding positions, the height of the long through hole 6 is the height adjustable by the probe 4, the sleeve 3 and the probe 4 are provided with the square through hole 7 at corresponding positions, the cross-sectional shape of the square through hole 7 is consistent with the cross-sectional shape of the probe 4, the probe 4 can be stably held while the height of the probe 4 is adjusted, the probe 4 is prevented from shaking, so the cross-sectional shape of the square through hole 7 can be changed along with the cross-sectional shape of the probe 4, the rotating rod 2 is provided with the spiral through hole 8, the spiral through hole 8 is of a spiral rising structure, the round through hole 9 is provided at corresponding positions of the sleeve 3 and the spiral through hole 8, the round through hole 9 and the spiral through hole 8 are inserted with a pin 10, the pin 10 is fixed in the round through hole 9, and the probe 4 is inserted into the square through hole 7 and the long through hole 6.

Referring to fig. 2 to 3, the upper end of the rotating rod 2 corresponding to the spiral through hole 8 is provided with a scale 11, and the position of the sleeve 3 corresponding to the scale 11 is provided with an observation hole 12.

Referring to fig. 2, a first handle 13 is disposed at the upper end of the rotating rod 2, and the first handle 13 is used for rotating the rotating rod 2.

Referring to fig. 4 to 5, the prompting mechanism includes a shallow groove 14, a deep groove 15, a first spring 16, and a first ball 17, a plurality of shallow grooves 14 are disposed at a position where the lower end of the rotating rod 2 is connected to the vertical rod 1, the plurality of shallow grooves 14 are disposed at equal intervals and surround into an annular shape, the deep grooves 15 are disposed at positions of the vertical rod 1 and the plurality of shallow grooves 14, there are two deep grooves 15, a connecting line of the two deep grooves 15 passes through a center of a cross section of the rotating rod 2, the first spring 16 is disposed in the deep groove 15, the first ball 17 is disposed at an upper end of the first spring 16, an upper end of the first ball 17 contacts with the shallow grooves 14, and the shallow grooves 14 correspond to the scales 11 one by one.

Referring to fig. 6 to 7, the connecting mechanism includes a stopper 18, a pressing block, a second spring 21, a fixing post 22, a D-shaped hole 23, a post hole 24, a D-shaped rod 25, a ball hole 26, and a second ball 27, a stopper 18 is disposed in the middle of the guide rod 5, the stopper 18 and the guide rod 5 are integrally formed, a pressing block is disposed on one side of the stopper 18, the pressing block includes a vertical pressing block 19 and a horizontal pressing block 20, the second spring 21 is disposed between the vertical pressing block 19 and the stopper 18, the second spring 21 is fixed in the stopper 18, the horizontal pressing block 20 contacts with one end of the guide rod 5 away from the vertical rod 1, the fixing post 22 is disposed at the lower end of the guide rod 5 corresponding to the horizontal pressing block 20, the fixing post 22 is inserted in the guide rod 5, the fixing post 22 is inserted in an opening of the tibial osteotomy module, and the device can be fixed on the tibial osteotomy module, and then measuring the osteotomy height by using a probe, wherein a D-shaped hole 23 is arranged in the middle of the horizontal pressing block 20, a column hole 24 is arranged at a position corresponding to the fixed column 22 and the D-shaped hole 23, a D-shaped rod 25 is arranged in the D-shaped hole 23 and the column hole 24, the cross-sectional shapes of the D-shaped hole 23 and the D-shaped rod 25 are D-shaped, a ball hole 26 is arranged in the middle of the fixed column 22, one end of the ball hole 26 is communicated with the column hole 24, the other end of the ball hole 26 is communicated with the outside of the fixed column 22, a second ball 27 is arranged in the ball hole 26, one end of the second ball 27 extends out of the fixed column 22 under the condition of no external force interference, and interferes with an opening of the tibial osteotomy module to play a fixing role, and when no external force is applied, the second spring 21 sequentially has pretightening force on the vertical pressing block 19, the horizontal pressing block 20, the D-shaped rod 25 and the second ball 27.

Referring to fig. 1, the elastic arm 28 is disposed at the lower end of the sleeve 3 corresponding to the square through hole 7, and the elastic arm 28 always has a pressure on the probe 4, so as to prevent the probe 4 from shaking, and increase the stability and the measurement accuracy of the probe 4.

Please refer to fig. 8, the probe 4 includes horizontal segment 29, slope segment 30 and vertical segment 31, the tibial platform is not a complete plane, but a plane of the unevenness of certain slope, and the traditional probe has only horizontal segment and slope segment, if the probe tip touches the slope of the tibial platform, it is not easy to judge whether the probe position is placed properly, can lead to the probe to have certain gradient, cause the measured osteotomy volume of probe to be inaccurate, the tip in this device is vertical segment 31, if the probe tip touches the slope of the tibial platform, observe the angle of probe tip and tibial platform easily, it is suitable whether the convenient probe position of judgement is placed, it is not easy to cause measuring error.

Referring to fig. 8, a second handle 32 is disposed on one side of the probe 4, and the position of the probe 4 can be adjusted by holding the second handle 32 with a hand.

Referring to fig. 9, the vertical rod 1 and the guide rod 5 are connected by a connecting rod 33, the connecting rod 33 is movably connected with the vertical rod 1 and the guide rod 5, a pressing ring 34 is arranged at the upper part of the connecting rod 33, a saddle-shaped washer 35 is arranged at the middle part of the connecting rod 33, and the saddle-shaped washer 35 and the pressing ring 34 enable a certain resistance to be provided between the connecting rod 33 and the vertical rod 1 and the guide rod 5.

The working principle of the invention is as follows: after the osteotomy position of the tibia is determined, the tibia osteotomy module is fixed at the osteotomy position of the tibia, a connecting mechanism is used for fixedly arranging a fixing column 22 in the device into an opening of the tibia osteotomy module, namely the device is fixed on the tibia osteotomy module, then an external force is used for rotating a vertical rod 2, the vertical rod 2 drives a probe 4, the probe 4 is adjusted to a proper angle, then a height adjusting mechanism is used for adjusting the height of the probe 4, a prompting mechanism emits sound in the height adjusting process to help a doctor to judge a specific numerical value of the adjusted height, so that the tip of the probe 4 is positioned at a proper position of a tibial platform, and meanwhile, the height adjusting mechanism displays the height of the probe 4, namely the osteotomy amount is determined;

the working principle of the connecting mechanism is as follows: pressing the vertical pressing block 19 by using external force, compressing the second spring 21, driving the horizontal pressing block 20 to rotate by the vertical pressing block 19, further driving the D-shaped rod 25 to rotate in the column hole 24, canceling the pre-tightening force on the second ball 27 after the D-shaped rod 25 rotates, inserting the fixing column 22 into the hole of the tibia osteotomy module, canceling the acting force on the vertical pressing block 19, and completing the connection of the fixing column 22 and the tibia osteotomy module;

the working principle of the height adjusting mechanism is as follows: when the rotating rod 2 is rotated by external force, the rotating rod 2, the vertical rod 1 and the sleeve 3 rotate relatively, the relative position of the pin 10 and the spiral through hole 8 changes, the pin 10 is guided by the spiral through hole 8 to ascend or descend, the sleeve 3 is driven to ascend or descend, the square through hole 7 in the sleeve 3 drives the probe 4 to ascend or descend, the relative position of the probe 4 and the long through hole 6 changes, the height of the probe 4 is adjusted, and when the sleeve 3 ascends or descends to a specific height, the corresponding scale 11 corresponds to the observation hole 12, so that a doctor can conveniently determine the adjustment height of the probe 4;

the working principle of the prompting mechanism is as follows: when an external force rotates the rotating rod 2, the vertical rod 1 does not rotate, the rotating rod 2 and the first ball 17 are interfered, the first spring 16 is compressed until the first ball 17 touches the next shallow groove 14, the first spring 16 rebounds to press the first ball 17 into the next shallow groove 14, vibration is generated between the first ball 17 and the shallow groove 14, a sound is generated, and the height of the probe 4 is adjusted by 1 mm;

it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Adjustable shin bone probe, including vertical pole (1), its characterized in that: the probe is characterized in that a rotating rod (2) is arranged at the upper end of the vertical rod (1), a sleeve (3) is arranged outside the rotating rod (2), a probe (4) is arranged in the middle of the vertical rod (1), a guide rod (5) is arranged at the lower end of the vertical rod (1), a height adjusting mechanism is arranged in the middle of the rotating rod (2), a prompting mechanism is arranged at the lower end of the rotating rod (2), a connecting mechanism is arranged on one side of the guide rod (5), the height adjusting mechanism comprises a long through hole (6), a square through hole (7), a spiral through hole (8), a circular through hole (9) and a pin (6) are arranged at positions corresponding to the vertical rod (1) and the probe (4), the square through hole (7) is arranged at a position corresponding to the sleeve (3) and the probe (4), the spiral through hole (8) is arranged on the rotating rod (2), the circular through hole (9) is arranged at a position corresponding to the spiral through hole (8), the pin (10) is inserted into the circular through hole (9) and the spiral through hole (8), and the probe (4) is inserted into the square through hole (7) and the long through hole (6);

the connecting mechanism comprises a stop block (18), a pressing block, a second spring (21), a fixing column (22), a D-shaped hole (23), a column hole (24), a D-shaped rod (25), a ball hole (26) and a second ball (27), wherein the stop block (18) is arranged in the middle of the guide rod (5), the pressing block is arranged on one side of the stop block (18), the pressing block comprises a vertical pressing block (19) and a horizontal pressing block (20), the second spring (21) is arranged between the vertical pressing block (19) and the stop block (18), the fixing column (22) is arranged at the lower end, corresponding to the guide rod (5) and the horizontal pressing block (20), the D-shaped hole (23) is arranged in the middle of the horizontal pressing block (20), the column hole (24) is arranged at the position, corresponding to the fixing column (22) and the D-shaped hole (23), the D-shaped rod (25) is arranged in the D-shaped hole (23) and the column hole (24), the ball hole (26) is arranged in the middle of the fixing column (22), and the ball hole (27) is arranged in the ball hole (26).

2. The adjustable tibial probe of claim 1, wherein: the upper end that corresponds with spiral through-hole (8) on dwang (2) is provided with scale (11), the position that sleeve (3) and scale (11) correspond is provided with observation hole (12).

3. The adjustable tibial probe of claim 1, wherein: a first handle (13) is arranged at the upper end of the rotating rod (2).

4. The adjustable tibial probe of claim 1, wherein: prompt mechanism includes shallow slot (14), deep trouth (15), a spring (16), ball (17), the position that dwang (2) lower extreme and vertical pole (1) are connected is provided with a plurality of shallow slots (14), the position of vertical pole (1) and a plurality of shallow slot (14) is provided with deep trouth (15), be provided with a spring (16) in deep trouth (15), spring (16) upper end is provided with ball (17), ball (17) upper end and shallow slot (14) contact.

5. The adjustable tibial probe of claim 1, wherein: the lower ends of the sleeve (3) and the square through hole (7) are provided with elastic arms (28).

6. The adjustable tibial probe of claim 1, wherein: the probe (4) comprises a horizontal section (29), an inclined section (30) and a vertical section (31).

7. The adjustable tibial probe of claim 1, wherein: and a second handle (32) is arranged on one side of the probe (4).

8. The adjustable tibial probe of claim 1, wherein: vertical pole (1) and guide bar (5) are connected through connecting rod (33), connecting rod (33) upper portion is provided with clamping ring (34), connecting rod (33) middle part is provided with saddle shape packing ring (35).