CN211749680U - Over-bending and over-stretching position die - Google Patents
Over-bending and over-stretching position die Download PDFInfo
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- CN211749680U CN211749680U CN201922489242.2U CN201922489242U CN211749680U CN 211749680 U CN211749680 U CN 211749680U CN 201922489242 U CN201922489242 U CN 201922489242U CN 211749680 U CN211749680 U CN 211749680U
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- 238000000429 assembly Methods 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 239000002253 acid Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000003384 imaging method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- UQMRAFJOBWOFNS-UHFFFAOYSA-N butyl 2-(2,4-dichlorophenoxy)acetate Chemical compound CCCCOC(=O)COC1=CC=C(Cl)C=C1Cl UQMRAFJOBWOFNS-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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Abstract
The utility model provides an over-bending and over-stretching position mould, which belongs to the technical field of medical examination equipment and comprises a support, three support rods and a fastening mechanism, wherein the lower part of the support is used for being fixedly connected with an examination bed, and the upper part of the support is provided with a containing groove for containing cervical vertebrae; the three support rods are arranged in the accommodating groove in parallel and are respectively connected with the support in a vertical sliding manner; the fastening mechanism is arranged on the support and is used for respectively fastening the three support rods at the preset positions of the support so as to form the over-flexion position or the over-extension position of the cervical vertebra. Because of the supporting function of the support and the three support rods, the neck of the patient can not be suspended, the discomfort of the patient can be favorably reduced, the difficulty that the patient per se reaches the over-flexion position or the over-extension position can be reduced, and the neck of the patient can not generate the acid feeling even if the examination time is slightly long, so that the cooperation examination can be favorably carried out, meanwhile, the patient can persist for a longer time, the over-flexion position or the over-extension position can be kept for a longer time, the examination time can be favorably shortened, and the accuracy of the examination result can be improved.
Description
Technical Field
The utility model belongs to the technical field of medical examination equipment, more specifically say, relate to an it crosses over and stretches a mould to buckle.
Background
When a patient is examined physically by a CT machine or the like, the patient may be required to lower his/her head forward and back to form an over-bent and over-extended position of the cervical vertebrae. However, these postures are difficult for some patients, on one hand, the patients are difficult to reach the over-flexion position or the over-extension position due to uncomfortable feeling, and on the other hand, once the examination time is a little longer, the patients are difficult to persist, even if the examination process is prolonged, the uncomfortable feeling of the patients is increased, the neck of the patients is further shaken or shaken, and the final imaging is blurred due to the motion tail shadow, so that the examination effect is affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an excessive flexion and extension position mould to solve the patient self that exists among the prior art low head forward and the great technical problem of the excessive flexion and extension position degree of difficulty that backs up the head backward and form the cervical vertebra.
In order to achieve the above object, the utility model adopts the following technical scheme: the over-bending and over-stretching position mold comprises a support, three support rods and a fastening mechanism, wherein the lower part of the support is fixedly connected with an examination bed, and the upper part of the support is provided with an accommodating groove for accommodating cervical vertebrae; the three support rods are arranged in the accommodating groove in parallel and are respectively connected with the support in a vertical sliding manner; the fastening mechanism is arranged on the support and is used for respectively fastening the three support rods at the preset positions of the support so as to form the over-flexion position or the over-extension position of the cervical vertebra.
The utility model discloses an in the embodiment, support upper portion is equipped with two curb plates that are parallel to each other, and two curb plates form the holding tank, and three bracing piece is all perpendicular with the curb plate, is equipped with the spout that corresponds the setting with the tip of three bracing piece respectively on the curb plate, and three bracing piece is respectively through spout and curb plate sliding connection.
The utility model discloses an in the embodiment, the rack that sets up along the spout axial outside the spout, the tip of three bracing piece all is equipped with the external screw thread, and fastening device includes spacing gasket and fastening nut, and spacing gasket cover is established at the bracing piece tip, and be equipped with rack complex tooth, fastening nut and external screw thread fit to compress tightly spacing gasket on the rack.
In an embodiment of the present invention, the mold further includes a driving mechanism, the driving mechanism is disposed on the support and connected to the three support rods respectively for driving the three support rods to slide.
In an embodiment of the present invention, the driving mechanism includes three groups of cam assemblies, a power assembly, a transmission assembly and an elastic assembly, wherein the three groups of cam assemblies are rotatably connected to the support, and are respectively disposed below the three support rods for abutting against the support rods to drive the support rods to slide; the power assembly is used for providing driving force; the transmission assembly is respectively connected with the three cam assemblies and the power assembly and is used for transmitting the driving force of the power assembly and driving the three cam assemblies to synchronously rotate.
In an embodiment of the present invention, the driving mechanism further includes an elastic component, and the elastic component is respectively connected to the three support rods and the support for providing an elastic force for driving the three support rods to move downward.
In an embodiment of the invention, the driving mechanism and the fastening mechanism are the same mechanism, or the driving mechanism comprises the fastening mechanism.
In one embodiment of the present invention, the power assembly includes a rotating handle rotatably connected to the support or a motor disposed on the support; the transmission assembly comprises a gear set, a transmission chain and one or more of three groups of flexible shafts, wherein the two ends of the three groups of flexible shafts are respectively connected with the rotating shaft of the cam assembly and the power assembly; the long axis direction of the cam component positioned below the middle supporting rod is opposite to the long axis direction of the other two cam components; the cam component comprises two cams which are respectively arranged below two ends of the supporting rod and a rotating shaft which is fixedly connected with the two cams and is rotationally connected with the support.
In an embodiment of the present invention, the mold further comprises an angle indicating mechanism for indicating an angle between the three support rods; the angle indicating mechanism comprises an angle scale and an elastic indicating line, and the angle scale is arranged at the end part of the supporting rod positioned in the middle and is vertical to the supporting rod; the middle part of the elastic indicating line is connected with the supporting rod positioned in the middle, and the two ends of the elastic indicating line are respectively connected with the two supporting rods positioned on the two sides, so that the angle between the three supporting rods can be read through projection on the angle scale after the three supporting rods are tightened.
In one embodiment of the utility model, the over-bending and over-stretching position die further comprises a flexible supporting cover and a connecting band, wherein the flexible supporting cover is covered on the upper part of the support and covers the accommodating groove and the three supporting rods; the connecting bands are respectively connected with the three supporting rods and used for supporting the flexible supporting cover.
In one embodiment of the utility model, the support is connected with the examination bed through a buckle structure; the buckle structure comprises an insertion rod arranged on the lower portion of the support and used for being inserted into a through hole arranged on the examination bed in a preset mode and a clamping tongue arranged on the insertion rod and used for being clamped with the lower portion of the examination bed.
The utility model provides an it lies in to cross bend the beneficial effect of hyperextension position mould: compared with the prior art, the utility model has the advantages that the support is firmly fixed on the examination bed before examination through the matching of the support, the three support rods and the fastening mechanism, when the bent position is examined, the three support rods are adjusted to lead the support rod in the middle to slide down and the support rods on the two sides to slide up to form a concave structure, and the support is fixed through the fastening mechanism; when the flexion is checked, the three support rods are adjusted to enable the support rod in the middle to slide upwards and the support rods on the two sides to slide downwards to form an upper convex structure, and the support rods are fixed through a fastening mechanism. During examination, the patient can attach the three support rods to the cervical vertebra as much as possible, and the over-bending and over-stretching position can be achieved. Because of the supporting function of the support and the three support rods, the neck of the patient can not be suspended, the patient can stick to the three support rods for a longer time as far as possible, and can keep the patient in the over-bent position or the over-stretched position for a longer time, which is beneficial to reducing the discomfort of the patient and reducing the difficulty of the patient reaching the over-bent position or the over-stretched position, even if the examination time is longer, the neck of the patient can not generate acid predicament, and can not generate vibration or shake, thereby being more beneficial to matching examination, shortening the examination time, obtaining a clearer and more accurate imaging result, and improving the accuracy of the examination result.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic side view of an over-bending and over-stretching mold according to an embodiment of the present invention in an over-bending state;
fig. 2 is a schematic side view of a mold for over-bending and over-stretching in an over-stretching position according to another embodiment of the present invention;
fig. 3 is a schematic view of a main-view sectional structure of a mold for over-bending and over-stretching according to still another embodiment of the present invention;
fig. 4 is a schematic side view of a mold for over-bending and over-stretching according to another embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
10. a support; 11. accommodating grooves; 12. a side plate; 13. a chute; 14. a rack;
15. inserting a rod; 16. a latch; 17. a card slot;
20. a support bar;
30. a fastening mechanism; 31. a limiting gasket; 32. fastening a nut;
40. a flexible support housing;
50. a drive mechanism;
51. a cam assembly; 52. a power assembly; 53. a transmission assembly; 54. an elastic component;
61. an angle scale; 62. an elastic indicator line.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The utility model provides a mould for over-bending and over-stretching position is explained.
Referring to fig. 1 and 3 together, the mold for over-bending and over-stretching provided by the present invention comprises a support 10, three support rods 20 and a fastening mechanism 30, wherein the lower portion of the support 10 is used for being fixedly connected with an examining table, and the upper portion is provided with an accommodating groove 11 for accommodating the cervical vertebrae; the three support rods 20 are arranged in the accommodating groove 11 in parallel and are respectively connected with the support 10 in a vertical sliding manner; fastening mechanisms 30 are provided on the support base 10 for fastening the three support rods 20 at predetermined positions of the support base 10, respectively, to form an over-flexion or over-extension position of the cervical vertebrae.
Compared with the prior art, the mold for excessive bending and stretching provided by the utility model has the advantages that the support 10 is firmly fixed on the examining bed before examination through the matching of the support 10, the three support rods 20 and the fastening mechanism 30, when the bending position is examined, the three support rods 20 are adjusted, the support rod 20 in the middle slides down, the support rods on the two sides slide up to form a concave structure, and the support rods are fixed through the fastening mechanism 30; when the flexion is checked, the three support rods 20 are adjusted to enable the middle support rod 20 to slide upwards and the two side support rods to slide downwards to form an upper convex structure, and the upper convex structure is fixed through the fastening mechanism 30. During examination, the patient can attach the three support rods 20 to the cervical vertebra as much as possible, and the over-bending and over-stretching position can be achieved. Because of the supporting function of the support 10 and the three support rods 20, the neck of the patient can not be suspended, the patient can stick to the three support rods 20 as far as possible to persist for a longer time and keep the patient in the over-bent position or the over-extended position for a longer time, which is beneficial to reducing the discomfort of the patient and reducing the difficulty of the patient reaching the over-bent position or the over-extended position, even if the examination time is longer, the neck of the patient can not generate acid feeling and can not generate vibration or shake, thereby being more beneficial to matching examination, shortening the examination time, obtaining a clearer and more accurate imaging result and improving the accuracy of the examination result.
Please refer to fig. 1 to fig. 3 together, as a specific embodiment of the mold for over-bending and over-stretching provided by the present invention, the upper portion of the support 10 is provided with two parallel side plates 12, the two side plates 12 form the accommodating groove 11, the three support rods 20 are perpendicular to the side plates 12, the side plates 12 are provided with sliding grooves 13 respectively corresponding to the end portions of the three support rods 20, and the three support rods 20 are respectively connected with the side plates 12 through the sliding grooves 13, so as to enhance the stability of the three support rods 20 and avoid the three support rods 20 from deviating.
Referring to fig. 2, as a specific embodiment of the mold for over-bending and over-stretching provided by the present invention, the rack 14 axially disposed along the sliding groove 13 is disposed outside the sliding groove 13, the end of the three supporting rods 20 is provided with external threads, the fastening mechanism 30 includes a limiting gasket 31 and a fastening nut 32, the limiting gasket 31 is sleeved on the end of the supporting rod 20 and is provided with teeth engaged with the rack 14, and the fastening nut 32 is engaged with the external threads to press the limiting gasket 31 onto the rack 14. This structure can prevent the three support rods 20 from sliding due to the pressing down, which is advantageous to enhance the stability of use.
Referring to fig. 2 and fig. 3, as a specific embodiment of the mold for over-bending and over-stretching according to the present invention, the mold for over-bending and over-stretching further includes a driving mechanism 50, and the driving mechanism 50 is disposed on the support 10 and connected to the three supporting rods 20 respectively for driving the three supporting rods 20 to slide. The three support rods 20 can only slide up and down to form two gears, the three support rods 20 form an over-bent position or an over-extended position through the cooperation of the sliding up and down, and the driving mechanism 50 can be a mechanism or a device driven by gears such as a steering engine component. The three support rods 20 can also slide freely so as to finely adjust the relative positions of the three support rods 20 according to the characteristics of different patients.
Referring to fig. 3, as a specific embodiment of the mold for over-bending and over-stretching provided by the present invention, the driving mechanism 50 includes three groups of cam assemblies 51, a power assembly 52, a transmission assembly 53 and an elastic assembly 54, wherein the three groups of cam assemblies 51 are rotatably connected to the support 10 and respectively disposed below the three support rods 20 for abutting against the support rods 20 to drive the support rods 20 to slide; the power assembly 52 is used for providing driving force; the transmission assembly 53 is respectively connected with the three groups of cam assemblies 51 and the power assembly 52, and is used for transmitting the driving force of the power assembly 52 and driving the three groups of cam assemblies 51 to rotate synchronously.
Referring to fig. 3, as an embodiment of the present invention, the driving mechanism 50 further includes an elastic component 54, and the elastic component 54 is respectively connected to the three support rods 20 and the support 10 for providing an elastic force to drive the three support rods 20 to move downward. The elastic member 54 pulls the three support rods 20 downward and the cam member 51 pushes the three support rods 20 upward, so that the three support rods 20 can be effectively and sensitively slid. The elastic member 54 may be three springs connected to the three support rods 20, respectively.
Referring to fig. 3, as a specific embodiment of the mold for over-bending and over-stretching according to the present invention, the driving mechanism 50 and the fastening mechanism 30 are the same mechanism, or the driving mechanism 50 includes the fastening mechanism 30. Specifically, the fastening mechanism 30 may be a mechanism having a limiting function formed by the cam assembly 51 and the elastic assembly 54.
Referring to fig. 2 to 4, as a specific embodiment of the mold for over-bending and over-stretching according to the present invention, the power assembly 52 includes a rotating handle rotatably connected to the support 10 or a motor disposed on the support 10; the transmission assembly 53 comprises a gear set, a transmission chain and one or more of three groups of flexible shafts, wherein the two ends of the three groups of flexible shafts are respectively connected with the rotating shaft of the cam assembly 51 and the power assembly 52; the long axis direction of the cam component 51 positioned below the middle support rod 20 is opposite to the long axis direction of the other two cam components 51; the cam assembly 51 includes two cams respectively disposed below both ends of the support rod 20 and a rotation shaft fixedly coupled to the two cams and rotatably coupled to the support 10.
Referring to fig. 4, as a specific embodiment of the mold for over-bending and over-stretching according to the present invention, the mold for over-bending and over-stretching further includes an angle indicating mechanism for indicating an angle between the three supporting rods 20. The angle indicating mechanism may be a mechanical structure for manual reading or an electronic device capable of automatically measuring data.
Referring to fig. 4, as a specific embodiment of the mold for over-bending and over-stretching according to the present invention, the angle indicating mechanism includes an angle scale 61 and an elastic indicating line 62, the angle scale 61 is disposed at the end of the supporting rod 20 located in the middle and is perpendicular to the supporting rod 20; the middle part of the elastic indicating line 62 is connected with the support bar 20 located in the middle, and the two ends of the elastic indicating line are respectively connected with the two support bars 20 located at the two sides, so that the angles between the three support bars 20 can be read through the projection on the angle scale 61 after the three support bars 20 are tightened. Be equipped with the angle scale on the angle scale 61, and the axial coincidence of the bracing piece 20 in the middle of angle scale center and being located, the middle part and the both ends of elasticity instruction line 62 coincide with the axis of three bracing piece 20 respectively to promote and instruct the precision. In order to ensure the accuracy of the intersection measurement, at least the central support rod 20 may be a rod that is not rotatable about its own axis.
When the three support rods 20 are used, after the three support rods 20 are adjusted and positioned according to the self condition of a patient, the angles between the support rod 20 positioned in the middle and the support rods 20 positioned at two sides can be displayed through the angle indicating mechanism, after statistics is recorded, the over-bending and over-stretching position range of the patient can be conveniently researched, so that the three support rods 20 can be directly adjusted to be in place, the examination efficiency is improved, and data support and research reference are provided for other examination projects.
Referring to fig. 3, as a specific embodiment of the mold for over-bending and over-stretching provided by the present invention, the mold for over-bending and over-stretching further includes a flexible supporting cover 40 and a connecting band, the flexible supporting cover 40 is covered on the upper portion of the support 10 and covers the accommodating groove 11 and the three supporting rods 20; the connecting bands are respectively connected with the three support rods 20 and used for supporting the flexible support cover 40, so that the suspension feeling of the patient during use is avoided. The flexible support cover 40 isolates the support 10 and the three support rods 20 from the human body, and can prevent each part in the support 10 from hurting the human body or increasing the discomfort of the patient. The flexible support shell 40 may be a silicone construction that can conform to the neck of the patient. The connecting belt can be an elastic cloth belt sequentially arranged on the three supporting rods 20 in a penetrating way, and is matched with the three supporting rods 20 to form a concave or convex over-bending and over-extending position.
Referring to fig. 2 and 4, as an embodiment of the mold for over-bending and over-stretching position provided by the present invention, the support 10 is connected to the examining table by a snap structure. The lower part of the support 10 can be provided with a clamping groove 17 for clamping with a fixture arranged on the examination bed. The fastening structure may also include an insertion rod 15 disposed at the lower portion of the support 10 and used for being inserted into a predetermined through hole on the examination bed, and a latch 16 disposed on the insertion rod 15 and used for being fastened to the lower portion of the examination bed.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An over-bent over-extended position die, comprising:
the lower part of the support (10) is fixedly connected with the examination bed, and the upper part of the support is provided with a containing groove (11) for containing the cervical vertebra;
the three support rods (20) are arranged in the accommodating groove (11) in parallel and are respectively connected with the support (10) in a vertical sliding manner; and
and the fastening mechanism (30) is arranged on the support (10) and is used for respectively fastening the three support rods (20) at preset positions of the support (10) so as to form an over-flexion position or an over-extension position of the cervical vertebra.
2. The over-bent over-extended mold of claim 1, wherein: support (10) upper portion is equipped with two curb plates (12) that are parallel to each other, two curb plate (12) form holding tank (11), three bracing piece (20) all with curb plate (12) are perpendicular, be equipped with respectively with three on curb plate (12) the spout (13) that the tip of bracing piece (20) corresponds the setting, three bracing piece (20) pass through respectively spout (13) with curb plate (12) sliding connection.
3. The over-bent over-extended mold of claim 2, wherein: the utility model discloses a support bar, including spout (13), spout (13) outside is followed rack (14) that spout (13) axial set up, it is three the tip of bracing piece (20) all is equipped with the external screw thread, fastening device (30) include spacing gasket (31) and fastening nut (32), spacing gasket (31) cover is established bracing piece (20) tip, and be equipped with rack (14) complex tooth, fastening nut (32) with screw-thread fit, with spacing gasket (31) compress tightly on rack (14).
4. The over-bent over-extended site die of any one of claims 1-3, wherein the over-bent over-extended site die further comprises:
and the driving mechanism (50) is arranged on the support (10), is respectively connected with the three support rods (20) and is used for driving the three support rods (20) to slide.
5. The over-bent over-extended mold according to claim 4, wherein the driving mechanism (50) comprises:
the three groups of cam assemblies (51) are rotatably connected with the support (10), are respectively arranged below the three support rods (20), and are used for being abutted against the support rods (20) to drive the support rods (20) to slide;
a power assembly (52) for providing a driving force;
the transmission assembly (53) is respectively connected with the three groups of cam assemblies (51) and the power assembly (52) and is used for transmitting the driving force of the power assembly (52) and driving the three groups of cam assemblies (51) to synchronously rotate; and
and the elastic components (54) are respectively connected with the three support rods (20) and the support (10) and are used for providing elastic force for driving the three support rods (20) to move downwards.
6. The over-bent hyperextension mold according to claim 5, wherein the driving mechanism (50) is the same mechanism as the fastening mechanism (30), or the driving mechanism (50) comprises the fastening mechanism (30).
7. The over-bent over-extended mold of claim 5, wherein: the power assembly (52) comprises a rotating handle which is rotationally connected with the support (10) or an electric motor which is arranged on the support (10); the transmission assembly (53) comprises a gear set, a transmission chain and one or more of three groups of flexible shafts, wherein the two ends of the three groups of flexible shafts are respectively connected with a rotating shaft of the cam assembly (51) and the power assembly (52); the long axis direction of the cam component (51) positioned below the middle supporting rod (20) is opposite to the long axis direction of the other two cam components (51); the cam component (51) comprises two cams which are respectively arranged below two ends of the supporting rod (20) and a rotating shaft which is fixedly connected with the two cams and is rotationally connected with the support (10).
8. The over-bent hyperextension mould according to any of the claims 1 to 3, characterized in that it further comprises angle indication means for indicating the angle between the three support bars (20); the angle indicating mechanism includes:
the angle scale (61) is arranged at the end part of the support rod (20) positioned in the middle and is vertical to the support rod (20); and
and the middle part of the elastic indicating line (62) is connected with the support rod (20) positioned in the middle, and the two ends of the elastic indicating line are respectively connected with the two support rods (20) positioned on the two sides, so that the angles among the three support rods (20) can be read through the projection on the angle scale (61) after the three support rods (20) are tightened.
9. The over-bent over-extended site mold of claim 1, further comprising:
the flexible supporting cover (40) is covered on the upper part of the support (10) and covers the accommodating groove (11) and the three supporting rods (20); and
and the connecting bands are respectively connected with the three support rods (20) and are used for supporting the flexible support cover (40).
10. The over-bent over-extended mold of claim 1, wherein: the support (10) is connected with the examination bed through a buckle structure; the buckle structure comprises a support (10) lower part and an insertion rod (15) which is used for being inserted into a preset through hole in the examination bed, and a clamping tongue (16) which is arranged on the insertion rod (15) and is connected with the lower part of the examination bed in a clamping mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922489242.2U CN211749680U (en) | 2019-12-31 | 2019-12-31 | Over-bending and over-stretching position die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922489242.2U CN211749680U (en) | 2019-12-31 | 2019-12-31 | Over-bending and over-stretching position die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211749680U true CN211749680U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922489242.2U Expired - Fee Related CN211749680U (en) | 2019-12-31 | 2019-12-31 | Over-bending and over-stretching position die |
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| CN (1) | CN211749680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111012374A (en) * | 2019-12-31 | 2020-04-17 | 河北医科大学第二医院 | Over-bending and over-stretching position die |
-
2019
- 2019-12-31 CN CN201922489242.2U patent/CN211749680U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111012374A (en) * | 2019-12-31 | 2020-04-17 | 河北医科大学第二医院 | Over-bending and over-stretching position die |
| CN111012374B (en) * | 2019-12-31 | 2023-05-23 | 河北医科大学第二医院 | Over-bending and over-stretching die |
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| CF01 | Termination of patent right due to non-payment of annual fee |