CN213310387U - Thighbone measuring probe - Google Patents
Thighbone measuring probe Download PDFInfo
- Publication number
- CN213310387U CN213310387U CN202021297369.0U CN202021297369U CN213310387U CN 213310387 U CN213310387 U CN 213310387U CN 202021297369 U CN202021297369 U CN 202021297369U CN 213310387 U CN213310387 U CN 213310387U
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- base
- measuring
- flat sliding
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a thighbone measuring probe in the field of orthopedic surgery tools. The main part includes the base of vertical setting and level setting in the measuring tape of base upper end. The measuring scale outside cover has flat sliding sleeve, sliding connection around the measuring scale is in the spout of flat sliding sleeve, and the lower surface of flat sliding sleeve is equipped with the ladder through-hole, and the top surface center of base corresponds the ladder through-hole and is equipped with the screw thread counter bore, and a word groove screw passes the ladder through-hole from top to bottom, and is connected flat sliding sleeve and base rotation with the cooperation of screw thread counter bore, is equipped with the bulb plunger on the face of flat sliding sleeve inside and measuring scale contact, is equipped with first groove on the measuring scale, is equipped with the second groove on the flat sliding sleeve, and the base surface is equipped. An elastic support capable of eliminating a sliding gap is realized between the measuring ruler and the flat sliding sleeve by arranging a ball plunger; the measuring ruler is connected with the base through a straight-line groove screw, the rotating clearance is reduced by the adjusting washer, and the top surface of the base is provided with a clearance groove to enable the rotation to be smooth and stable.
Description
Technical Field
The utility model relates to an orthopedic surgery instrument technical field, concretely relates to thighbone measuring probe.
Background
The femur measuring probe is used for assisting in measuring the distance between the front side and the back side of a femur in a femur replacement operation, and aims to accurately find the cortical bone high point on the front side of the femur, so that the probe measurement precision is very important to maintain. The existing design controls the deflection amount of the probe in the height direction by adjusting the clearance between each sliding part and each rotating part, the main structure is a relative sliding structure combining a T-shaped groove and a dovetail groove, so that the probe and the flat sliding sleeve relatively slide, and the probe rotates on the base at a certain angle, and the design has the following technical problems in the practical use:
1) the probe and the flat sliding sleeve shake in the height direction;
2) the matching part is easy to wear, so that the subsequent measurement is inaccurate;
3) the measuring ruler does not provide a reticle corresponding to the specification of the implanted object or the corresponding specification is inaccurate;
4) cannot provide 360 degrees of relative displacement between the probe and the base;
5) the precision requirement of parts at each matching part is high, and the cost and the rejection rate are high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough and defect of prior art, provide a thighbone measuring probe is used for the auxiliary measurement thighbone front and back side distance.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a thighbone measuring probe, the main part includes that base and the level of vertical setting set up in the measuring tape of base upper end, measuring tape outside cover has flat sliding sleeve, the measuring tape slides around in the spout of flat sliding sleeve, the lower surface of flat sliding sleeve is equipped with the ladder through-hole, the top surface center of base corresponds the ladder through-hole and is equipped with the screw thread counter bore, a word groove screw passes the ladder through-hole from the top down, rotate flat sliding sleeve and base with the cooperation of screw thread counter bore and be connected, be equipped with the bulb plunger on the face of flat sliding sleeve inside and measuring tape contact, be equipped with first groove on the measuring tape, be equipped with the second groove on the flat sliding sleeve.
Specifically, the top surface of the base is provided with an annular groove at a position corresponding to the stepped through hole.
Specifically, an adjusting washer is arranged between the stepped through hole and a stud of the straight-line groove screw.
Specifically, the front end of the measuring ruler is provided with a stop pin.
Specifically, the measuring ruler is provided with an arc groove corresponding to the ball plunger and clamped with a marble of the ball plunger, and the arc groove, the ball plunger clamp and the subsequent scale reading correspond to the size of the femoral prosthesis with the standard specification.
Compared with the prior art, the utility model following advantage and beneficial effect are included: the utility model improves the original structure of the femur measuring probe, and realizes the elastic support capable of eliminating the sliding clearance by arranging the ball plunger between the measuring ruler and the flat sliding sleeve; the measuring ruler is connected with the base through a straight-line groove screw, a rotating gap is eliminated by the adjusting washer, and the top surface of the base is provided with a clearance groove to enable the rotation to be smooth and stable.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a top view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 2, a thighbone measuring probe, the main part includes that base 6 and the level of vertical setting set up in measuring ruler 1 on base 6, and measuring ruler 1 outside cover has flat sliding sleeve 3, and measuring ruler 1 slides around in flat sliding sleeve 3's spout, and flat sliding sleeve 3's lower surface is equipped with the shoulder hole, and the top surface center of base 6 corresponds the shoulder hole and is equipped with the screw thread counter bore, and straight groove screw 7 passes the shoulder hole from the top down, and it is as an organic whole with the cooperation of screw thread counter bore with flat sliding sleeve 3 and base 6. The measuring ruler 1 and the base 6 can realize relative movement in the whole circle, and a target point can be found more easily
In the step through hole, the nut of the straight-line groove screw 7 is clamped at the upper step, an adjusting washer 5 is arranged between the lower inner wall and the stud of the straight-line groove screw 7, and the adjusting washer 5 is used for adjusting the axial clearance of the revolute pair. The adjusting washer 5 is a replaceable part and can be adapted to various specifications. The precision of each part of the revolute pair is greatly reduced, and the cost is reduced.
Preferably, one end of the measuring ruler 1 is provided with a stop pin 4 to prevent the measuring ruler 1 from being separated from the flat sliding sleeve 3.
A ball plunger 2 is arranged on the surface of the flat sliding sleeve 3, which is in contact with the measuring ruler 1, and the measuring ruler 1 is pressed against the flat sliding sleeve 3 by the ball plunger 2 under the action of spring elasticity, so that the sliding gap in the height direction is eliminated. The measuring ruler 1 is provided with a first scribed line 11, and the flat sliding sleeve 3 is provided with a second scribed line. And when the measuring scale 1 is adjusted to slide to enable the number of the marks on the first scale line 11 to be aligned with a second scale line fixedly arranged on the flat sliding sleeve 3, the number is the reading displayed by the measuring scale 1. Preferably, the measuring ruler 1 is provided with arc grooves corresponding to the ball plunger 2 to be clamped with the marbles of the ball plunger 2, and each arc groove corresponds to a scale reading of the femoral prosthesis with a standard specification.
The position of the top surface of the base 6 corresponding to the stepped through hole is provided with an annular groove, so that the contact area between the base 6 and the flat sliding sleeve 3 is reduced, and the friction between the flat sliding sleeve 3 and the base 6 when rotating is reduced.
The utility model discloses a concrete implementation process as follows:
when the measuring device is used, the whole device is inserted into a T-shaped sliding groove of a measuring instrument matched with the measuring device, the measuring ruler 1 is pulled, the measuring point at the head of the measuring ruler 1 is contacted with the anterior cortical bone of the femur, the height of the whole measuring probe and the sliding position of the measuring ruler 1 are repeatedly adjusted, and when the reading of the first scribed line 11 is consistent with the reading of the third scribed line 61, the measurement of the size of the femur is completed.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (5)
1. The utility model provides a thighbone measuring probe, the main part includes that the base and the level of vertical setting set up in the measuring tape of base upper end, its characterized in that: the measuring scale is sleeved with a flat sliding sleeve, the measuring scale slides back and forth in a sliding groove of the flat sliding sleeve, a stepped through hole is formed in the lower surface of the flat sliding sleeve, a threaded counter bore is formed in the center of the top surface of the base and corresponds to the stepped through hole, a slotted screw penetrates through the stepped through hole from top to bottom and is matched with the threaded counter bore to rotatably connect the flat sliding sleeve with the base, a ball plunger is arranged on the surface, contacting with the measuring scale, inside the flat sliding sleeve, of the flat sliding sleeve, a first scribed line is arranged on the measuring scale, a second scribed line is arranged on the.
2. A femoral measurement probe according to claim 1, wherein: the top surface of the base is provided with an annular groove corresponding to the step through hole.
3. A femoral measurement probe according to claim 1, wherein: and an adjusting washer is arranged between the stepped through hole and the stud of the straight-line groove screw.
4. A femoral measurement probe according to claim 1, wherein: the front end of the measuring ruler is provided with a stop pin.
5. A femoral measurement probe according to claim 1, wherein: the measuring ruler is provided with an arc groove which is clamped with a marble of the ball plunger, and the arc groove, the ball plunger clamp and the subsequent scale reading correspond to the size of the femoral prosthesis with a standard specification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021297369.0U CN213310387U (en) | 2020-07-06 | 2020-07-06 | Thighbone measuring probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021297369.0U CN213310387U (en) | 2020-07-06 | 2020-07-06 | Thighbone measuring probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213310387U true CN213310387U (en) | 2021-06-01 |
Family
ID=76082934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021297369.0U Active CN213310387U (en) | 2020-07-06 | 2020-07-06 | Thighbone measuring probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213310387U (en) |
-
2020
- 2020-07-06 CN CN202021297369.0U patent/CN213310387U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207874880U (en) | A kind of photocuring 3D printer and its levelling device | |
| US6105269A (en) | Osteologic measuring device | |
| CN213310387U (en) | Thighbone measuring probe | |
| CN107514962A (en) | Three pin shaft forks measure chamfering to reference plane measurer | |
| CN208458648U (en) | Verticality measuring instrument | |
| CN108354697B (en) | Acetabulum measuring scale | |
| JPH01227903A (en) | Dial cylinder gage | |
| CN202211764U (en) | Adjustable continuous injector | |
| CN209197622U (en) | Measurer is used in a kind of detection of portable rolling slide block | |
| CN102370527B (en) | Adjustable continuous injector | |
| CN208313199U (en) | Cylindrical workpiece axis hole vertical detection device | |
| CN211493449U (en) | Compasses capable of randomly adjusting radius and length | |
| CN209197621U (en) | Measurer is used in a kind of detection of portable rolling guide | |
| CN207571402U (en) | A kind of laser beam datum tooling | |
| CN113418506A (en) | Leveling method suitable for house construction | |
| CN210749218U (en) | Device of evaluation thyroid cancer postoperative shoulder neck mobility | |
| CN207912698U (en) | The external engineer's scale of simple x ray photograph | |
| CN220695259U (en) | Preoperative measuring device for removing eye bags | |
| CN215688519U (en) | Fine design measuring instrument for double eyelid | |
| CN209230426U (en) | A kind of length micrometer | |
| CN220275575U (en) | Measuring gauge for eyes | |
| CN213697190U (en) | Terminal apparatus of arm that suitability is high | |
| CN109807849A (en) | A kind of accurate line tool of long range | |
| US2521825A (en) | Micrometer caliper | |
| CN218639633U (en) | Artificial tooth processing visualizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |