CN109938693B - Incomplete limb soft tissue mechanics characteristic indentation measuring device - Google Patents
Incomplete limb soft tissue mechanics characteristic indentation measuring device Download PDFInfo
- Publication number
- CN109938693B CN109938693B CN201910005929.6A CN201910005929A CN109938693B CN 109938693 B CN109938693 B CN 109938693B CN 201910005929 A CN201910005929 A CN 201910005929A CN 109938693 B CN109938693 B CN 109938693B
- Authority
- CN
- China
- Prior art keywords
- measuring device
- soft tissue
- rigid shell
- adjusting
- mechanical property
- 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.)
- Expired - Fee Related
Links
- 238000007373 indentation Methods 0.000 title claims abstract description 33
- 210000004872 soft tissue Anatomy 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims description 71
- 238000005259 measurement Methods 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 5
- 210000001519 tissue Anatomy 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 3
- 230000006978 adaptation Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 6
- 238000002559 palpation Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Abstract
The invention discloses an indentation measuring device for the mechanical property of the soft tissue of a residual limb, which belongs to the field of adaptation detection of artificial limbs in medical engineering and aims to ensure that the measuring device has simple and portable structure and more accurate measured data. The invention solves the problems that the existing equipment has complex structure and poor portability, and the vertical relation between a pressure head and a measuring tissue is difficult to ensure, fully simulates the compression state of an artificial limb receiving cavity on a residual limb in the measuring process, and avoids the extrusion effect of peripheral soft tissues on a measuring part as much as possible.
Description
Technical Field
The invention relates to the field of medical engineering artificial limb adaptation detection, in particular to an indentation measuring device for mechanical characteristics of soft tissues of residual limbs.
Background
According to statistics, the disabled people in China are 8500 for more than ten thousand, and the disabled people in China are 2400 for more than ten thousand. The various parts of the artificial limb connected with the body need to be designed individually and meet the requirements of functionality and comfort, so that the mechanical properties of the soft tissues of the stump need to be analyzed.
The traditional manual palpation method is to press soft tissues by using fingers, and then the hardness score of the touched part is given qualitatively by means of the hand feeling of an operator. The test results of this method are highly subjective and depend heavily on the experience of the operator, who then introduces the indentation test into the measurement of the mechanical properties of the soft tissue. Indentation testing is a mechanical testing method very similar to palpation, and utilizes a pressure head with a small contact surface to compress soft tissues and then gives elastic parameters of a tested part. However, the current method still has defects: the structure is too complex, the portability is not realized, and the operation is not flexible; the measured tissue is not fixed relative to the indentation device and the perpendicular relationship between the indenter and the measured tissue cannot be guaranteed, resulting in inaccurate measurement results.
Disclosure of Invention
The invention aims to provide an indentation measuring device for the mechanical characteristics of the soft tissue of the stump, which has the advantages of simple and portable structure and more accurate measured data.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a incomplete limb soft tissue mechanics characteristic indentation measuring device, includes the rigid shell, rigid shell inboard is provided with the gasbag, the compressor of air is injected into to the gasbag in the intercommunication, the hole of stepping down has been seted up to rigid shell side, be provided with indentation measuring device on the rigid shell, indentation measuring device is including the fixed cloud platform that sets up, the output of cloud platform is connected with linear stepping motor, the last displacement measurement equipment who measures linear stepping motor's output displacement that is provided with of linear stepping motor, linear stepping motor's output is connected with pressure sensor, the last depression bar that passes the hole of stepping down that is connected with of pressure sensor.
By adopting the technical scheme, after the limbs of a person are placed in the air bags, the air compressor is started to inflate the air bags to a certain pressure, the air bags arranged on the rigid shell are used for simulating the action of the artificial limbs on the limbs of the person, and meanwhile, the arrangement of the air bags can be suitable for the diameters of the limbs of different persons; the tripod head can adjust the position of the linear stepping motor, so that the linear stepping motor drives the pressure rod to vertically abut against the part to be measured of the limb of the human body when moving, the measuring accuracy is improved, and meanwhile, the pressure sensor and the displacement measuring equipment can simultaneously record the moving distance of the pressure rod and the pressure effect on the pressure rod and record the measuring data;
compared with a manual palpation method used clinically, the device has the advantages that the mechanical characteristics of the soft tissue are digitized, so that the dependence on the experience of a tester is avoided, and the measurement is more objective;
compared with the existing indentation testing method, the invention has simple and portable structure;
in the measuring process, the matching state of the artificial limb receiving cavity and the residual limb is simulated, and the tripod head ensures that the pressing direction of the pressure rod is vertical to the skin surface of the residual limb, so that the measuring data is more accurate;
the operation is simple, and the rapid measurement can be carried out on different parts of the stump.
The invention is further configured to: the pressure lever is sleeved with a conical shell which slides along the axial direction of the pressure lever.
By adopting the technical scheme, the conical shell enlarges the inclination angle of the axis of the pressure rod, so that the verticality between the axis of the pressure rod and the part to be measured of the limb of the person to be measured can be observed conveniently when the frustum is adjusted.
The invention is further configured to: the rigid shell is connected with an adjusting mechanism for adjusting the position of the rigid shell;
the adjusting mechanism comprises a vertical adjusting mechanism for adjusting the position of the rigid shell along the vertical direction, a transverse angle adjusting mechanism for adjusting the angular position of the rigid shell in the direction which is not parallel to the vertical direction, and a longitudinal angle adjusting mechanism for adjusting the angular position of the rigid shell which is not parallel to the vertical direction and the adjusting direction of the transverse adjusting mechanism.
Through adopting above-mentioned technical scheme, adjustment mechanism can realize the adjustment of the spatial position of rigid shell, when the human limbs that await measuring to remove inconveniently, adjustment mechanism can adjust the rigid shell to suitable position through vertical adjustment mechanism, horizontal angle modulation mechanism, vertical angle modulation mechanism to be convenient for locate the human limbs outside with the gasbag cover, be convenient for measure human limbs, the comfort level when having improved the device and using.
The invention is further configured to: the vertical adjusting mechanism comprises a fixedly arranged supporting rod, a sliding block sliding along the axis direction of the supporting rod is sleeved on the supporting rod, and an adjusting handle penetrating through the sliding block and abutting against the supporting rod is rotatably arranged on the sliding block;
the transverse angle adjusting mechanism comprises a fixed seat fixed on the sliding block, a rotating shaft rotating around the axis of the fixed seat is rotatably connected to the fixed seat, and an adjusting knob in abutting connection with the rotating shaft is rotatably arranged on the fixed seat;
the longitudinal angle adjusting mechanism comprises a fixed sleeve fixed on the rotating shaft, a rotating shaft rotating around the axis of the fixed sleeve is sleeved on the inner side of the fixed sleeve, a locking bolt penetrating through the fixed sleeve and abutting against the side surface of the rotating shaft is arranged on the side surface of the fixed sleeve in a rotating mode, and one end, extending out of the fixed sleeve, of the rotating shaft is detachably connected with the rigid shell.
By adopting the technical scheme, after the adjusting handle is unscrewed, the sliding block is moved along the axis direction of the supporting rod, and after the sliding block is moved to a proper position, the adjusting handle is rotated to realize the pressing connection of the sliding block and the supporting rod; after the sliding block is fixed, the adjusting knob is unscrewed, the rotating shaft is rotated around the axis of the rotating shaft, and after the rotating shaft is rotated to a proper angle, the adjusting knob is rotated to be pressed against the rotating shaft, so that the rotating shaft is tightly connected with the fixed seat; after the locking bolt is loosened, the rotating shaft is rotated around the axis of the rotating shaft, and after the rotating shaft is rotated to a proper angle, the rotating shaft and the fixed sleeve are connected in a pressing mode through the locking bolt, so that the position of the rigid shell is adjusted.
The invention is further configured to: and the rigid shell is provided with a connecting mechanism connected with the adjusting mechanism. Through adopting above-mentioned technical scheme, coupling mechanism is used for rigidity shell and adjustment mechanism's being connected, when needs adjustment mechanism to fix adjustment mechanism, uses coupling mechanism to be connected rigidity shell and adjustment mechanism, when inconvenient use adjustment mechanism, can direct manual removal rigidity shell locates the gasbag cover on the people's that awaits measuring limbs, the use of this equipment of being convenient for, the flexibility that improve equipment used.
The invention is further configured to: the connecting mechanism comprises a clamp fixed on the connecting mechanism, and a pressing bolt which is pressed against the rigid shell to tightly press and connect the rigid shell and the clamp is arranged on the clamp in a penetrating manner.
Through adopting above-mentioned technical scheme, loosen clamp bolt soon, manual adjustment rigidity shell rotates around self central line, makes the position of stepping down hole on the rigidity shell aim at the position that awaits measuring, and the clamp bolt of screwing supports with the rigidity shell and presses to support rigidity shell and anchor clamps and press, realize rigidity shell and adjustment mechanism's high-speed joint, will step down the hole and aim at the position that awaits measuring simultaneously.
The invention is further configured to: one end of the pressure rod, which faces away from the linear stepping motor, is detachably connected with a pressure head.
Through adopting above-mentioned technical scheme, be convenient for use the pressure head of different diameters to measure people's limbs.
The invention is further configured to: the air bag is detachably connected to the inner side of the rigid shell, and a gap is reserved at the position yielding hole.
Through adopting above-mentioned technical scheme, fix the residual limb through the gasbag pressurization, simulated the artificial limb accepting cavity and to the compression of residual limb, left the hole of stepping down, avoided the extrusion of tissue to the position of awaiting measuring on every side, the gasbag is convenient for change, makes this equipment can be applicable to the artificial limb of multiple diameter, further improves the universal performance of equipment, and the gasbag can be dismantled with the rigid housing simultaneously and be connected, the clearance of the gasbag of being convenient for is changed.
The invention is further configured to: the air bag is connected with the rigid shell through a magic tape.
Through adopting above-mentioned technical scheme, the magic subsides can realize dismantling between gasbag and the rigid housing to be connected, and connect convenient and fast, the use of the equipment of being convenient for.
The invention is further configured to: the centerline of the airbag is parallel to the centerline of the rigid housing.
By adopting the technical scheme, the area of the air bag supporting the limbs of the person is large, the simulation effect is better, and the use is convenient.
In conclusion, the invention has the following beneficial effects:
1. compared with a manual palpation method used clinically, the device has the advantages that the mechanical characteristics of the soft tissue are digitized, so that the dependence on the experience of a tester is avoided, and the measurement is more objective; compared with the existing indentation testing method, the invention has simple and portable structure; the cradle head ensures that the pressing direction of the pressure rod is vertical to the surface of the skin of the stump, so that the measured data is more accurate; the operation is simple, and different parts of the stump can be quickly measured;
2. the air bag is inflated to compress and fix the residual limb, the matching state of the prosthetic limb receiving cavity and the residual limb is fully simulated in the measuring process, and the reservation is made at the abdicating hole, so that the extrusion effect of surrounding tissues on the part to be measured is avoided, and the measured data can better reflect the real state of soft tissues;
3. the conical shell enlarges the inclination angle of the axis of the pressure rod, so that whether the axis of the pressure rod is vertical to the part to be measured of the limb of the person to be measured or not can be observed when the frustum of the cloud is adjusted;
4. the adjusting mechanism can realize the adjustment of the spatial position of the rigid shell, when the human body limb to be measured is inconvenient to move, the adjusting mechanism can adjust the rigid shell to a proper position through the vertical adjusting mechanism, the transverse angle adjusting mechanism and the longitudinal angle adjusting mechanism, so that the air bag sleeve is convenient to locate at the outer side of the human body limb, the measurement of the human body limb is convenient, and the comfort level of the device in use is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of embodiment 1;
FIG. 2 is an exploded view of the rigid housing and adjustment mechanism and indentation measuring device of example 1;
FIG. 3 is a schematic sectional view showing the structure of the adjusting mechanism in embodiment 1;
FIG. 4 is a schematic structural view of a pressure measuring apparatus in example 1;
FIG. 5 is a schematic view of the structure of a measuring apparatus in example 2;
FIG. 6 is a schematic view showing the structure of an airbag in example 2.
In the figure, 1, a support mechanism; 11. a support base plate; 2. an adjustment mechanism; 21. a vertical adjustment mechanism; 211. a slider; 212. an adjusting handle; 213. a support bar; 22. a lateral angle adjusting mechanism; 221. a fixed seat; 222. fixing the rod; 223. a rotating shaft; 224. adjusting a knob; 225. a support plate; 23. a longitudinal angle adjusting mechanism; 231. fixing a sleeve; 232. a rotating shaft; 233. locking the bolt; 3. a rigid housing; 31. a hole of abdication; 32. a connecting mechanism; 321. a clamp; 322. a hold-down bolt; 323. pressing a plate; 4. an air bag; 41. a hose; 42. an integrated gas circuit; 43. a circular ring; 44. a compressor; 5. an indentation measuring device; 51. an L-shaped bracket; 52. a spherical pan-tilt; 53. a linear stepper motor; 54. a potentiometer; 55. a drive nut; 6. a pressure measuring device; 61. a fixed support; 62. a pressure sensor; 63. a pressure lever; 64. a pressure head; 65. a conical housing.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals.
Example 1
An indentation measuring device for the mechanical characteristics of the soft tissue of the residual limb, as shown in figure 1, comprises a supporting mechanism 1 arranged on the ground. The supporting mechanism 1 includes a supporting bottom plate 11 placed on the ground, the supporting bottom plate 11 is a square plate, a supporting rod 213 with an axis along the thickness direction of the supporting bottom plate 11 is fixed on the supporting bottom plate 11, and the supporting rod 213 is a square rod. The support base plate 11 is fixed with a connecting plate by using screws, and the side surface of the support rod 213 is welded with a reinforcing rib welded with the connecting plate towards one end of the connecting plate.
As shown in fig. 1, an adjusting mechanism 2 is connected to the support mechanism 1.
As shown in fig. 2, the adjusting mechanism 2 includes a vertical adjusting mechanism 21, the vertical adjusting mechanism 21 includes a sliding block 211 that is sleeved on the outer side of the supporting rod 213 and slides along the axial direction of the supporting rod 213, the sliding block 211 is a square tube that is sleeved on the supporting rod 213, a threaded hole is formed in the side surface of the sliding block 211, and an adjusting handle 212 that penetrates through the threaded hole and abuts against the supporting rod 213 is rotatably arranged on the sliding block 211. The adjusting handle 212 is rotated to enable the end face of the adjusting handle 212 extending into the sliding block 211 to be pressed against the side face of the supporting rod 213, so that the sliding block 211 is tightly connected with the supporting rod 213.
As shown in fig. 2 and 3, the adjustment mechanism 2 includes a lateral reclining mechanism 22 connected to a vertical adjustment mechanism 21. Horizontal angle modulation mechanism 22 is including welding fixing base 221 on slider 211, fixing base 221 is square board, and screw thread circular slot has been seted up to fixing base 221 one side, and the via hole that passes fixing base 221 is seted up to screw thread circular slot bottom surface, is provided with the axis of rotation 223 that passes the via hole on the fixing base 221, and the axis of rotation 223 is close to the one end an organic whole of via hole and is provided with the spacing dish that the diameter is greater than axis of rotation 223 and is located screw thread circular slot. An adjusting knob 224 which is pressed against the limiting disc is screwed in the thread circular groove.
As shown in fig. 2 and 3, the adjusting knob 224 is rotated to separate the adjusting knob 224 from the limiting disc, at this time, the rotating shaft 223 can be rotated around the axis of the rotating shaft 223, and after the rotating shaft 223 is rotated to a proper angle, the adjusting knob 224 is rotated to enable the adjusting knob 224 to extend into the end surface of the threaded circular groove to be pressed against the limiting disc, so that the rotating shaft 223 is tightly connected with the fixing seat 221.
As shown in fig. 2 and 3, the adjustment mechanism 2 comprises a horizontal longitudinal recliner mechanism 23 connected to a transverse recliner mechanism 22. The longitudinal angle adjusting mechanism 23 includes a fixing sleeve 231 sleeved on the rotating shaft 223 and tightly connected with the rotating shaft 223 by screws, a rotating shaft 232 rotating around the axis of the fixing sleeve 231 is sleeved in the fixing sleeve 231, and a locking bolt 233 passing through the fixing sleeve 231 and abutting against the side surface of the rotating shaft 232 is rotatably arranged outside the fixing sleeve 231.
As shown in fig. 2 and fig. 3, after the locking bolt 233 is loosened, the rotating shaft 232 is rotated around the axis of the fixing sleeve 231, and after the rotating shaft 232 is rotated to a proper position, the locking bolt 233 is rotated to enable the locking bolt 233 to extend into the end surface of the fixing sleeve 231 and to be pressed against the rotating shaft 232, so that the locking connection between the fixing sleeve 231 and the rotating shaft 232 is realized.
As shown in fig. 2, the rigid housing 3 is connected to the horizontal longitudinal reclining mechanism 23, and a connecting mechanism 32 is provided between the rigid housing 3 and the horizontal longitudinal reclining mechanism 23.
As shown in fig. 2, the connecting mechanism 32 includes a clamp 321 welded to one end of the rotating shaft 232 extending out of the fixing sleeve 231, the clamp 321 is a U-shaped frame with an opening facing away from the rotating shaft 232, the clamp 321 includes a bottom plate welded to the rotating shaft 232, an upper plate and a lower plate are respectively integrally arranged at two ends of the bottom plate, a pressing bolt 322 penetrating through the upper plate is screwed on the upper plate, a pressing plate 323 is pressed against one end of the pressing bolt 322 extending into the inner side of the clamp 321, the rigid housing 3 is a sleeve ring pressed between the pressing plate 323 and the lower plate, and two end faces of the rigid housing 3 along the axis direction thereof are respectively pressed against the pressing plate 323.
As shown in fig. 2 and 4, the side surface of the rigid housing 3 is provided with a relief hole 31, and an axis of the relief hole 31 coincides with an axis of the rotating shaft 232 in this embodiment. The inboard magic subsides that use of rigid housing 3 can be dismantled and be connected with gasbag 4, and the public face area of magic subsides is connected on gasbag 4, and the female face of magic subsides uses screw connection on rigid housing 3, and the magic is pasted and is not drawn in the drawing. The axis of the air bag 4 is parallel to the axis of the rigid shell 3, the air bag 4 is uniformly distributed along the inner side of the rigid shell 3 in the circumferential direction, and the position of the air bag 4 avoids the abdicating hole 31.
As shown in fig. 1 and 2, the air bag 4 is connected to a hose 41 for injecting air into the air bag 4, the hose 41 is connected to a compressor 44, and the compressor 44 injects air of a predetermined pressure into the air bag 4 through the hose 41.
As shown in fig. 1, an indentation measuring device 5 is fixed to the rigid housing 3.
As shown in fig. 2 and 4, the indentation measuring device 5 includes an L-shaped bracket 51 pressed against an end surface of the rigid housing 3 abutting against the lower plate, and the L-shaped bracket 51 is located right below the avoiding hole 31. The L-shaped support 51 is fixed with a spherical tripod head 52 by screws, the output end of the spherical tripod head 52 is connected with a linear stepping motor 53 by screws, the linear stepping motor 53 uses an external drive linear stepping motor, the actuating end of the linear stepping motor 53 is integrally provided with a screw rod, the screw rod is provided with a drive nut 55, the drive nut 55 is provided with a guide rod parallel to the axis of the screw rod in a penetrating way, the two ends of the guide rod are respectively fixed with a U-shaped frame with a downward opening by screws, and the U-shaped frame is fixed on the linear stepping motor 53 by screws. A potentiometer 54 is fixed on the linear stepping motor 53, the potentiometer 54 can accurately measure and record the moving distance of the output end of the linear stepping motor 53, and the potentiometer 54 is set as a linear displacement sensor fixed on the U-shaped frame by using a screw.
As shown in fig. 2 and 4, the indentation measuring device 5 includes a pressure measuring device 6 fixedly connected to an output end of the linear stepping motor 53. Pressure measurement device 6 is including using fix with screw fixed in the fixing support 61 on the drive nut 55, uses the screw connection to have pressure sensor 62 on the fixing support 61, uses the screw connection to have depression bar 63 on the pressure sensor 62, and the one end that pressure sensor 62 was kept away from to depression bar 63 uses the screw connection to have pressure head 64, has seted up the counter bore on the pressure head 64, wears to be equipped with the countersunk head bolt of locating soon on depression bar 63 in the counter bore, and the countersunk head bolt is not drawn in the drawing.
As shown in fig. 4, a conical housing 65 is sleeved outside the pressure lever 63, the conical housing 65 is funnel-shaped, the maximum outer diameter of the conical housing 65 is smaller than the diameter of the yielding hole 31, the inner diameter of the conical housing 65 is gradually increased along the direction away from the pressure sensor 62, and the conical housing 65 freely slides along the axial direction of the pressure lever 63.
An indentation measuring device for the mechanical characteristics of the soft tissue of the stump comprises the following working processes:
manually moving the sliding block 211, rotating the adjusting handle 212 to fix the position of the sliding block 211, and placing the residual limb into the rigid shell 3; slightly adjusting the rotation shaft 223 to rotate, and tightening the adjusting knob 224 to fix the position of the rotation shaft 223; slightly adjusting the rotation of the clamp 321, tightening the locking bolt 233 to fix the position of the clamp 321, and finally enabling the axial direction of the rigid shell 3 to be adapted to the direction of the natural drooping of the stump;
loosening the compression bolt 322, manually adjusting the rigid shell 3 to rotate to enable the round hole on the rigid shell 3 to be aligned with the part to be measured, screwing the compression bolt 322, inflating the air bag 4 through the air compressor 44, and compressing and fixing the stump;
manually adjusting the conical shell 65 to slide on the pressure rod 63, and accurately adjusting the position of the output end of the conical shell 65 through the rotation of the spherical cradle head 52 to ensure that the bottom surface of the conical shell 65 is in full contact with the skin of the residual limb, so as to ensure that the pressing direction of the pressure head 64 is vertical to the skin of the residual limb and fix the spherical cradle head 52;
the linear stepping motor 53 drives the pressure head 64 to move radially relative to the residual limb, the pressure sensor 62 records the pressure value, and the potentiometer 54 records the displacement value; and after the pressing-in process is finished, the power supply of the stepping motor is turned off, the air bag 4 is deflated, the stump is relaxed, and one-time measurement is finished.
Example 2
The device for measuring the mechanical property indentation of the soft tissue of the stump is different from the device in embodiment 1 in that, as shown in fig. 5, a fixed shaft type linear stepping motor is used for a linear stepping motor 53, a pressure rod 63 is fixed on the output end of the linear stepping motor 53 by using a coupler, a pressure sensor 62 is fixed on the pressure rod 63 by using a screw, and a conical shell 65 is sleeved on the outer side of the output end of the linear stepping motor 53 and freely slides along the axial direction of the output end of the linear stepping motor 53. The potentiometer 54 is provided as a digital encoder provided on the linear stepping motor 53 for measuring and recording the displacement distance of the output end of the linear stepping motor 53.
As shown in fig. 6, a circular ring 43 is glued to the outer side of the ring formed by the airbag 4, the circular ring 43 is embedded into the rigid housing 3, and the outer side of the circular ring 43 is pressed against the inner side of the rigid housing 3.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (10)
1. An indentation measuring device for the mechanical property of the soft tissue of the stump comprises a rigid shell (3), and is characterized in that: rigid housing (3) inboard is provided with gasbag (4), the compressor (44) of air of injecting into in to gasbag (4) is gone up in intercommunication in gasbag (4), hole of stepping down (31) have been seted up to rigid housing (3) side, be provided with indentation measuring device (5) on rigid housing (3), indentation measuring device (5) are including the fixed cloud platform that sets up, the output of cloud platform is connected with linear stepping motor (53), be provided with the displacement measurement equipment who measures the output displacement of linear stepping motor (53) on linear stepping motor (53), the output of linear stepping motor (53) is connected with pressure sensor (62), be connected with depression bar (63) that pass hole of stepping down (31) on pressure sensor (62).
2. The residual limb soft tissue mechanical property indentation measuring device of claim 1, wherein: the pressing rod (63) is sleeved with a conical shell (65) which slides along the axial direction of the pressing rod (63).
3. The residual limb soft tissue mechanical property indentation measuring device of claim 1, wherein: the rigid shell (3) is connected with an adjusting mechanism (2) for adjusting the position of the rigid shell (3);
the adjusting mechanism (2) comprises a vertical adjusting mechanism (21) for adjusting the position of the rigid shell (3) along the vertical direction, a transverse angle adjusting mechanism (22) for adjusting the angle position of the rigid shell (3) in the direction which is not parallel to the vertical direction, and a longitudinal angle adjusting mechanism (23) for adjusting the angle position of the rigid shell (3) which is not parallel to the vertical direction and the adjusting direction of the transverse adjusting mechanism (2).
4. The residual limb soft tissue mechanical property indentation measuring device of claim 3, wherein: the vertical adjusting mechanism (21) comprises a supporting rod (213) which is fixedly arranged, a sliding block (211) which slides along the axial direction of the supporting rod (213) is sleeved on the supporting rod (213), and an adjusting handle (212) which penetrates through the sliding block (211) and is pressed against the supporting rod (213) is rotatably arranged on the sliding block (211);
the transverse angle adjusting mechanism (22) comprises a fixed seat (221) fixed on the sliding block (211), a rotating shaft (223) rotating around the axis of the fixed seat (221) is rotatably connected to the fixed seat (221), and an adjusting knob (224) in pressing connection with the rotating shaft (223) is rotatably arranged on the fixed seat (221);
the longitudinal angle adjusting mechanism (23) comprises a fixed sleeve (231) fixed on a rotating shaft (223), the inner side of the fixed sleeve (231) is sleeved with a rotating shaft (232) rotating around the axis of the fixed sleeve (231), the side surface of the fixed sleeve (231) is provided with a locking bolt (233) which penetrates through the side surfaces of the fixed sleeve (231) and the rotating shaft (232) to abut against, and one end of the rotating shaft (232) extending out of the fixed sleeve (231) is detachably connected with the rigid shell (3).
5. The residual limb soft tissue mechanical property indentation measuring device of claim 3, wherein: and the rigid shell (3) is provided with a connecting mechanism (32) connected with the adjusting mechanism (2).
6. The residual limb soft tissue mechanical property indentation measuring device of claim 5, wherein: the connecting mechanism (32) comprises a clamp (321) fixed on the connecting mechanism (32), and a pressing bolt (322) which is pressed against the rigid shell (3) to press and connect the rigid shell (3) and the clamp (321) is arranged on the clamp (321) in a penetrating manner.
7. The residual limb soft tissue mechanical property indentation measuring device of claim 1, wherein: one end of the pressure lever (63) back to the linear stepping motor (53) is detachably connected with a pressure head (64).
8. The residual limb soft tissue mechanical property indentation measuring device of claim 1, wherein: the air bag (4) is detachably connected to the inner side of the rigid shell (3).
9. The residual limb soft tissue mechanical property indentation measuring device of claim 8, wherein: the air bag (4) is connected with the rigid shell (3) through a magic tape.
10. The residual limb soft tissue mechanical property indentation measuring device of claim 1, wherein: the central line of the air bag (4) is parallel to the central line of the rigid shell (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910005929.6A CN109938693B (en) | 2019-01-04 | 2019-01-04 | Incomplete limb soft tissue mechanics characteristic indentation measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910005929.6A CN109938693B (en) | 2019-01-04 | 2019-01-04 | Incomplete limb soft tissue mechanics characteristic indentation measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109938693A CN109938693A (en) | 2019-06-28 |
| CN109938693B true CN109938693B (en) | 2020-11-10 |
Family
ID=67007219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910005929.6A Expired - Fee Related CN109938693B (en) | 2019-01-04 | 2019-01-04 | Incomplete limb soft tissue mechanics characteristic indentation measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109938693B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI109652B (en) * | 1995-06-06 | 2002-09-30 | Finn Biomechanics Innovation O | Method and apparatus for recording and analyzing forces affecting a body part |
| TW456041B (en) * | 2000-11-16 | 2001-09-21 | Nat Science Council | A contact type micro piezoresistive shear-stress sensor |
| CN205286620U (en) * | 2015-12-10 | 2016-06-08 | 泸州医学院附属医院 | Artificial limb gesture orthotic devices at one's knees |
| CN108318236B (en) * | 2018-03-07 | 2019-11-15 | 西华大学 | Biological limb skin impact wear comfort test system |
-
2019
- 2019-01-04 CN CN201910005929.6A patent/CN109938693B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN109938693A (en) | 2019-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4909262A (en) | Apparatus for obtaining a body limb torque signal | |
| KR101508919B1 (en) | Injection device with ultrasonic probe | |
| CN206659839U (en) | Infant hip joint ultrasonic examining table | |
| CN108918009B (en) | Device and method for measuring pulling force and closing force of endoscopic stapler | |
| JP2000083928A (en) | Body shape measuring instrument, bed selecting device and its method | |
| CN109938693B (en) | Incomplete limb soft tissue mechanics characteristic indentation measuring device | |
| CN214549543U (en) | Clinical supersound puncture director | |
| CN204207761U (en) | Patella axial X-ray film making positioner | |
| WO2004037351A1 (en) | System and method for deriving angular isokinetic measurements using a linear dynamometer | |
| CN204882350U (en) | Detection apparatus for be used for leather | |
| CN110575143A (en) | Knee joint looseness measuring instrument | |
| CN107260188B (en) | Multi-direction occlusal force measuring device based on force sensor | |
| CN215018370U (en) | Radial artery compressor | |
| CN108195556A (en) | Wind tunnel test auxiliary device and its application method | |
| CN204207762U (en) | Patella axial X-ray photographic device | |
| CN210904907U (en) | Seat body anteflexion tester | |
| CN210843151U (en) | Ultrasonic department is with B ultrasonic examination support | |
| CN105615913A (en) | X-ray angle photographic chair for axial view patella | |
| CN219021148U (en) | Optometry calibrating device | |
| CN213525624U (en) | Device for measuring complete denture fixing force | |
| CN214856616U (en) | Clinical acupuncture pain of department of neurology inspection device | |
| CN215778011U (en) | Noninvasive orbit pressure measuring equipment convenient to adjust | |
| CN217339086U (en) | Eyeball pressure device | |
| CN209203597U (en) | A kind of printer model of artificial tooth key in place | |
| CN213696875U (en) | Support arrangement for be used for vertigo inspection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |