CN116035633A - Knee joint spreader - Google Patents

Knee joint spreader Download PDF

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Publication number
CN116035633A
CN116035633A CN202211609208.4A CN202211609208A CN116035633A CN 116035633 A CN116035633 A CN 116035633A CN 202211609208 A CN202211609208 A CN 202211609208A CN 116035633 A CN116035633 A CN 116035633A
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CN
China
Prior art keywords
knee joint
spreader
top shell
joint
shaft
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Granted
Application number
CN202211609208.4A
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Chinese (zh)
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CN116035633B (en
Inventor
王金玉
邵文
叶丽丽
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Qingdao Chengyang Peoples Hospital
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Qingdao Chengyang Peoples Hospital
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Priority to CN202211609208.4A priority Critical patent/CN116035633B/en
Publication of CN116035633A publication Critical patent/CN116035633A/en
Application granted granted Critical
Publication of CN116035633B publication Critical patent/CN116035633B/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/0206Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with antagonistic arms as supports for retractor elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/025Joint distractors
    • A61B2017/0268Joint distractors for the knee

Abstract

The invention discloses a knee joint spreader, which belongs to the technical field of medical equipment and comprises a top shell, wherein a top cover is fixedly arranged at the top of the top shell, a bidirectional screw is rotatably arranged in the top shell, a joint spreading mechanism is arranged on the bidirectional screw and is used for stably spreading a human knee joint, a stable supporting component is rotatably arranged on the bottom surface of the top shell, the stable supporting component is stably supported by a structure in use, and a physiological saline storage component is arranged on the inner surface of the top shell through a mounting frame; according to the invention, the joint expanding mechanism and the stable supporting component are arranged inside, so that the stable contact effect between the spreader and a human body can be effectively realized, the spreader can be stably supported, the problem that the gravity of the whole equipment of the traditional spreader can be borne on a knee joint, and the knee joint is easy to damage after the operation is performed for a long time is solved, and the protection performance is good.

Description

Knee joint spreader
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to a knee joint spreader.
Background
The medical instrument is a medical treatment instrument, the types of the medical instruments are different according to different directions of treating human diseases, different medical instruments have different shapes and functions, the knee joint spreader is one of the medical instruments, the knee joint spreader is divided into an inner part and an outer part, and generally the knee joint spreader is used for spreading the knee joint of a patient by using a spreading structure, so that doctors can conveniently perform operations such as operations, and a better treatment effect is obtained.
Chinese patent discloses (CN 114366538A) an orthopedics knee joint spreader, including the spreader support, be provided with thigh support frame and the shank support frame of independent arrangement on the spreader support, be provided with thigh bearing structure on the thigh support frame, the shank support frame includes the axis along the first back shaft that left and right sides direction extends, the epaxial rotation of first back shaft is equipped with the shank bracing piece, the one end that first back shaft was kept away from to the shank bracing piece is provided with shank fixed cover, be provided with the shank bracing piece fixed knot who is used for shank bracing piece to rotate after adjusting between first back shaft and the shank bracing piece and construct, first back shaft relatively spreader support can be from top to bottom, control and fore-and-aft movement adjustment, but current knee joint spreader often is through the both ends and the knee joint contact of patient of spreader, nevertheless can also accomplish the spreader to knee joint, but whole equipment's gravity can bear on the knee joint, after the time has been long, easily cause the injury to the knee joint, and because there is not support effect, guarantee the stability that the spreader also can't be guaranteed to prop open the knee joint, can't be solved in order to solve the problem that the precision is good, the spreader can't be controlled in order to solve the problem, the problem is solved, the spreader is not good to be applied to the good, and can't be controlled to the effect to the spreader.
Disclosure of Invention
The invention aims at: in order to solve the existing knee joint spreader when using, often through the both ends of spreader and patient's knee joint contact, although also can accomplish the expansion to knee joint, but the gravity of whole equipment can bear on knee joint, along with the going on of operation, after having long, easily cause the injury to knee joint, and because there is not supporting effect, the stability of spreader also can not be ensured, can't guarantee the effect of strutting certainly yet, and in the art, to the problem that the expansion range control precision of spreader is not good, the application effect is not good, a knee joint spreader is proposed.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a knee joint struts ware, includes the top shell, the top fixed mounting of top shell has the top cap, the inside rotation of top shell installs bi-directional screw rod, be provided with joint strut mechanism on the bi-directional screw rod, joint strut mechanism is used for human knee joint's stable strut, rotate on the bottom surface of top shell and install stable supporting component, stable supporting when stable supporting component uses the structure, be provided with normal saline through the mounting bracket on the internal surface of top shell and store the subassembly, normal saline stores the import that the subassembly was used for the postoperative knee joint to strut back salt water.
As a further description of the above technical solution:
the joint propping mechanism comprises a mounting plate, a threaded moving block is fixedly mounted at the top end of the mounting plate and is in threaded connection with a bidirectional screw rod through a screw hole formed in the threaded moving block, a travel groove is formed in the bottom of the top shell, and the mounting plate is in sliding connection with the travel groove.
As a further description of the above technical solution:
the bottom of mounting panel rotates and installs the support subassembly that struts, the support subassembly that struts includes the axis of rotation, the axis of rotation rotates and installs in the commentaries on classics downthehole of bottom setting of mounting panel, the outside cover of axis of rotation is equipped with torsion spring, torsion spring's one end and commentaries on classics downthehole fixed connection, the bottom fixed mounting of axis of rotation has the connecting axle, the bottom fixed mounting of connecting axle struts the backing sheet, be provided with the antiskid sheet on the lateral wall of strutting the backing sheet.
As a further description of the above technical solution:
the clamping assembly comprises a clamping plate, the clamping plate is arranged on the side wall of the mounting plate through a hinge, an outer convex ball and a clamping pin are respectively fixedly arranged on the outer walls of the two sides of the clamping plate, and clamping holes mutually matched with the clamping pin are formed in the side wall of the connecting shaft.
As a further description of the above technical solution:
the top cover is characterized in that an illuminating lamp is fixedly arranged on the bottom surface of the top cover, a top shaft is fixedly arranged at the top of the threaded moving block, an arc-shaped light condensing plate is fixedly arranged at the top end of the top shaft, and the arc-shaped light condensing plate is positioned on the outer side of the illuminating lamp.
As a further description of the above technical solution:
the stable supporting component comprises a longitudinal threaded shaft, the longitudinal threaded shaft is rotatably arranged on the bottom surface of the top cover, a driven bevel gear is fixedly arranged outside the longitudinal threaded shaft, a driving bevel gear is fixedly arranged in the middle of the bidirectional screw, and the driving bevel gear and the driven bevel gear are in meshed connection.
As a further description of the above technical solution:
the external thread of indulging and putting the screw thread axle installs the removal screw thread loop bar, all fixed mounting has the spacing slide bar of side on the both sides outer wall of removal screw thread loop bar, the one end of the spacing slide bar of side and the spout sliding connection who sets up on the inside wall of top shell.
As a further description of the above technical solution:
the side pressing plate is fixedly mounted on the outer wall of the other side of the movable threaded sleeve rod through a connecting rod, the bottom connecting rod is fixedly mounted at the bottom end of the movable threaded sleeve rod, and the stable supporting plate is rotatably mounted at the bottom end of the bottom connecting rod through a movable piece.
As a further description of the above technical solution:
the joint expansion mechanism is provided with two, the normal saline storage component is located between the two joint expansion mechanisms, the normal saline storage component comprises a storage bag, and a water injection pipe is fixedly installed on the outer wall of one side of the storage bag.
As a further description of the above technical solution:
one end of the water injection pipe penetrates through and extends to the outer side of the top shell, the water guide pipe is fixedly arranged on the bottom surface of the storage bag, the water guide ball is fixedly arranged at the bottom end of the water guide pipe, and the water guide ball is located on the outer side of the top shell.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. in the invention, through arranging the joint opening mechanism and the stable supporting component inside, when the instrument is used, the opening supporting components of the two joint opening mechanisms are arranged between knee joints to be opened, at the moment, the two threaded moving blocks which are arranged on the two joint opening mechanisms can be driven by the two threaded moving blocks to be mutually far away by rotating the two threaded screw rods, so that the two opening supporting components are driven to be far away simultaneously, the opening of the knee joints is realized, through adopting the design of the opening device, the displacement of the two opening devices can be synchronously regulated simultaneously, the opening accuracy is improved, the opening distance can be fixed after the opening, no limit operation is needed, the operation convenience of medical staff is greatly improved, meanwhile, when the two threaded screw rods rotate, the driving bevel gears are simultaneously driven to rotate, the longitudinal threaded shafts with the driven bevel gears are driven to rotate through the meshing effect, when the longitudinal threaded shaft rotates, the movable threaded sleeve rod can be driven downwards until the stable supporting plate of the movable threaded sleeve rod is contacted with the leg of a patient, through the design, the stable contact effect with a human body when the spreader is used can be effectively realized, the spreader can be stably supported, the problem that the gravity of the whole equipment of the traditional spreader can be borne on knee joints, the knee joints are easy to be damaged after the operation is carried out for a long time is effectively solved, and the movable part is arranged on the stable supporting plate, so that the spreader can randomly change the angle when in use, the supporting effect of the stable supporting plate can not be changed, the application effect is good, meanwhile, the physiological saline storage component is arranged in a matched way, the movable threaded sleeve rod can synchronously drive the side pressing plate to move downwards when the movable threaded sleeve rod moves downwards, the lateral pressure plate can extrude the reservoir in step, and the normal saline who stores in the extruded reservoir passes through in the water injection pipe leads into the water ball, finally spouts knee joint department through the water ball, through this design, can realize supporting in step, realizes automatic salt solution interpolation function, need not extra interpolation, improves medical personnel's convenience that uses.
2. According to the invention, the supporting component is designed to be rotatable, when the spreader is applied, if the initial placement position of the knee joint is narrower, the clamping plate of the clamping component can be directly separated from the side clamping hole of the connecting shaft, the torsion spring loses limitation at the moment, the connecting shaft and the supporting pieces can be driven to rotate, and the distance between the two supporting pieces is the minimum, so that the spreader can be placed between the narrow knee joints conveniently.
3. According to the invention, the arc-shaped light condensing plates are arranged on the joint expanding mechanism, meanwhile, the illuminating lamps are also arranged in the joint expanding mechanism, when the expanding device is used, the illuminating lamps are turned on to illuminate, after the two expanding support assemblies and the mounting plate are expanded, the two arc-shaped light condensing plates at the top of the two expanding support assemblies are synchronously far away from each other, at the moment, the two arc-shaped light condensing plates are far away from the illuminating lamps, at the moment, the light rays of the illuminating lamps are diffused, through the design, the illuminating light sources can be rapidly diffused while the expanding device expands the knee joint, the area of the illuminating area can be rapidly expanded, and therefore the function of automatically improving the observation effect in the using process of the expanding device can be realized, and the using effect is good.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of an exploded perspective view of the present invention;
FIG. 3 is an exploded perspective view of the top shell of the present invention;
FIG. 4 is a schematic exploded perspective view of the joint distracting mechanism, the stabilizing support assembly and the saline storage assembly;
FIG. 5 is a schematic exploded perspective view of the joint distracting mechanism and the bi-directional screw;
FIG. 6 is an enlarged perspective view of the stabilizing support assembly;
FIG. 7 is an enlarged perspective view of the distracting support assembly;
FIG. 8 is an enlarged schematic view of FIG. 2A;
FIG. 9 is an enlarged schematic view of the structure shown at B in FIG. 2;
fig. 10 is an enlarged perspective view of the detent assembly.
Legend description:
1. a top shell; 2. a bidirectional screw; 3. a handle; 4. a joint distraction mechanism; 41. an arc-shaped condensing plate; 42. a thread moving block; 43. a mounting plate; 44. a clamping assembly; 441. a clamping plate; 442. a convex ball; 443. a clamping pin; 45. a distraction support assembly; 451. a rotating shaft; 452. a connecting shaft; 453. a supporting plate; 454. a torsion spring; 455. a non-slip sheet; 5. a stabilizing support assembly; 51. a longitudinally arranged threaded shaft; 52. a driven bevel gear; 53. a side pressure plate; 54. a side limiting slide bar; 55. moving the threaded sleeve rod; 56. a bottom connecting rod; 57. a stabilizing support plate; 6. a physiological saline storage assembly; 61. a reservoir; 62. a water injection pipe; 63. a water guide ball; 7. a top cover; 8. a lighting lamp; 9. and driving a bevel gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-10, the present invention provides a technical solution: the utility model provides a knee joint struts ware, includes top shell 1, the top fixed mounting of top shell 1 has top cap 7, the inside rotation of top shell 1 is installed bi-directional screw rod 2, be provided with joint on the bi-directional screw rod 2 and strut mechanism 4, joint struts mechanism 4 and is used for the stable of human knee joint to prop up, rotate on the bottom surface of top shell 1 and install stable support subassembly 5, stable support when the 5 uses the structure, be provided with normal saline storage component 6 through the mounting bracket on the internal surface of top shell 1, normal saline storage component 6 is used for the leading-in of postoperative knee joint struts back saline.
The joint struts mechanism 4 and includes mounting panel 43, the top fixed mounting of mounting panel 43 has screw thread movable block 42, screw thread movable block 42 passes through its inside screw and two-way screw rod 2 threaded connection that sets up, top 1 bottom is provided with the travel groove, mounting panel 43 and travel groove sliding connection, the bottom rotation of mounting panel 43 is installed and is strutted supporting component 45, it includes axis of rotation 451 to strut supporting component 45, axis of rotation 451 rotates and installs in the pivot that the bottom of mounting panel 43 set up, the outside cover of axis of rotation 451 is equipped with torsion spring 454, torsion spring 454's one end and pivot inner wall fixed connection, the bottom fixed mounting of axis of rotation 451 has connecting axle 452, the bottom fixed mounting of connecting axle 452 struts supporting piece 453, be provided with anti-skidding piece 455 on the lateral wall of strutting piece 453.
The stable supporting component 5 comprises a longitudinal threaded shaft 51, the longitudinal threaded shaft 51 is rotatably mounted on the bottom surface of the top cover 7, a driven bevel gear 52 is fixedly mounted on the outer side of the longitudinal threaded shaft 51, a driving bevel gear 9 is fixedly mounted at the middle position of the bidirectional screw 2, the driving bevel gear 9 and the driven bevel gear 52 are connected in a meshed mode, a movable threaded sleeve rod 55 is mounted on the outer threads of the longitudinal threaded shaft 51, side limiting slide rods 54 are fixedly mounted on the outer walls of two sides of the movable threaded sleeve rod 55, one end of each side limiting slide rod 54 is slidably connected with a sliding groove formed in the inner side wall of the top cover 1, a side pressing plate 53 is fixedly mounted on the outer wall of the other side of the movable threaded sleeve rod 55 through a connecting rod, a bottom connecting rod 56 is fixedly mounted at the bottom end of the movable threaded sleeve rod 55, and a stable supporting plate 57 is rotatably mounted at the bottom end of the bottom connecting rod 56 through a movable piece.
The joint struts mechanism 4 is provided with two, normal saline stores the subassembly 6 and is located between two joint struts mechanism 4, normal saline stores the subassembly 6 and includes the reservoir 61, fixed mounting has the water injection pipe 62 on the outer wall of one side of reservoir 61, the one end of water injection pipe 62 passes and extends to the outside of top shell 1, the bottom surface fixed mounting of reservoir 61 has the water guide pipe, and the bottom fixed mounting of water guide pipe has water guide ball 63, water guide ball 63 is located the outside of top shell 1.
The specific implementation mode is as follows: when the device is used, the supporting components 45 of the two joint supporting mechanisms 4 are placed between knee joints to be supported, at the moment, the two threaded moving blocks 42 which are installed on the two threaded moving blocks can be driven by the two threaded moving blocks to be mutually far away through rotating the two threaded rods 2, so that the two supporting components 45 are driven to be far away simultaneously, the supporting of the knee joints is realized, the displacement of the two supporting devices can be synchronously regulated by adopting the supporting device design, the supporting accuracy is improved, the supporting distance is fixed after the supporting is carried out, any limiting operation is not required, the operation convenience of medical staff is greatly improved, meanwhile, when the two threaded rods 2 rotate, the driving bevel gears 9 are driven to rotate through meshing, and when the longitudinal threaded shafts 51 rotate, the movable threaded sleeve rods 55 can be driven downwards until the stable supporting plates 57 of the movable threaded sleeve rods 55 are in contact with the legs of a patient.
Through this design, can effectively realize this struts ware and human steady contact effect when using, can carry out steady support to struts ware, effectively solved the gravity of traditional struts ware whole equipment and can bear on knee joint, along with the going on of operation, after long, easily lead to the fact the problem of injury to knee joint, and owing to be provided with the moving part on the steady supporting board 57, therefore when using, this struts ware can change the angle at will, steady supporting board 57's supporting effect can not change, application effect is good, simultaneously through supporting being provided with normal saline storage module 6, when moving screw thread loop bar 55 downward displacement, it can drive side clamp plate 53 downward displacement in step to remove screw thread loop bar 55, side clamp plate 53 can extrude the reservoir 61 in step, the normal saline of being stored in the extruded reservoir 61 is led into in water guide ball 63 through water guide ball 63, finally spout to knee joint department through this design, realize the automatic salt solution interpolation function in step, need not to add, improve the convenience that medical personnel used.
The clamping assembly 44 is arranged on the outer wall of one side of the mounting plate 43, the clamping assembly 44 comprises a clamping plate 441, the clamping plate 441 is mounted on the side wall of the mounting plate 43 through a hinge, the outer walls of two sides of the clamping plate 441 are respectively and fixedly provided with a convex ball 442 and a clamping pin 443, and the side wall of the connecting shaft 452 is provided with a clamping hole mutually matched with the clamping pin 443.
The specific implementation mode is as follows: when the spreader is applied, if the initial placement position of the knee joint is narrower, the clamping plate 441 of the clamping component 44 can be directly separated from the side clamping hole of the connecting shaft 452 by the clamping pin 443 of the clamping plate 441, and the torsion spring 454 loses restriction at this time and can drive the connecting shaft 452 and the spreading support plates 453 to rotate 180 degrees, so that the distance between the two spreading support plates 453 is the minimum, and the knee joint can be placed between the narrow knee joints conveniently.
By this design, the application range of the distractor can be greatly increased by changing the design of the joint distractor mechanism 4.
The bottom surface of top cap 7 is last fixed mounting has light 8, the top fixed mounting of screw thread movable block 42 has the jackshaft, and the top fixed mounting of jackshaft has arc spotlight 41, arc spotlight 41 is located the outside of light 8.
The specific implementation mode is as follows: when the spreader is used, after the two spreading support assemblies 45 and the mounting plate 43 are spread, the two arc-shaped light condensing plates 41 at the top of the spreader are synchronously far away, at this time, the two arc-shaped light condensing plates 41 are far away from the illuminating lamp 8, at this time, the light rays of the illuminating lamp 8 are diverged, and the illumination observation is assisted.
Through this design, can make the irradiation light source obtain the rapid diffusion when this struts ware struts the knee joint to can expand the regional area of irradiation fast to can realize the function that struts ware use automatic improvement observation effect, excellent in use effect.
Working principle: when the device is used, the supporting components 45 of the two joint supporting mechanisms 4 are placed between knee joints to be supported, at the moment, the bidirectional screw rod 2 can drive the two threaded moving blocks 42 which are arranged on the bidirectional screw rod 2 in a threaded manner to be mutually far away, so that the two supporting components 45 are driven to be far away simultaneously, the supporting of the knee joints is realized, the displacement of the two supporting devices can be synchronously regulated simultaneously by adopting the supporting device design, the supporting accuracy is improved, the supporting distance is fixed after the supporting, no limit operation is needed, the operation convenience of medical staff is greatly improved, meanwhile, when the bidirectional screw rod 2 rotates, the driving bevel gear 9 is driven to rotate through the meshing effect, and when the longitudinal threaded shaft 51 with the driven bevel gear 52 rotates, the movable threaded sleeve rod 55 can be downwards transmitted until the stable supporting plate 57 of the movable threaded sleeve rod 55 is contacted with the leg of a patient, the stable contact effect with the human body when the spreader is used can be effectively realized, the spreader can be stably supported, the problem of injury to knee joints is easily caused after the operation is carried out for a long time, and the movable part is arranged on the stable supporting plate 57, so that the spreader can randomly change the angle when in use, the supporting effect of the stable supporting plate 57 can not be changed, the application effect is good, meanwhile, by being provided with the normal saline storage component 6 in a matched way, the movable threaded sleeve rod 55 can synchronously drive the side pressing plate 53 to downwards displace while the movable threaded sleeve rod 55 downwards, the side pressing plate 53 can synchronously squeeze the storage bag 61, the normal saline stored in the squeezed storage bag 61 is guided into the water guide ball 63 through the water injection pipe 62, finally, the water is sprayed to the knee joint through the water guide ball 63, so that the automatic saline water adding function can be realized while the support can be synchronously realized, and additional adding is not needed; when the spreader is applied, if the initial placement position of the knee joint is narrower, the clamping plate 441 of the clamping component 44 can be directly separated from the side clamping hole of the connecting shaft 452 by the clamping pin 443 of the clamping plate 441, at this time, the torsion spring 454 loses restriction and can drive the connecting shaft 452 and the spreading support plates 453 to rotate 180 degrees, at this time, the distance between the two spreading support plates 453 presents the minimum value, so that the knee joint can be placed between the narrow knee joints conveniently; when the spreader is used, the illuminating lamp 8 is turned on to illuminate, after the two spreading support assemblies 45 and the mounting plate 43 are spread, the two arc-shaped light condensing plates 41 at the top of the spreading support assemblies are synchronously far away, at the moment, the two arc-shaped light condensing plates 41 are far away from the illuminating lamp 8, and at the moment, the light of the illuminating lamp 8 is diverged to assist in illumination.

Claims (10)

1. The utility model provides a knee joint struts ware, includes top shell (1), the top fixed mounting of top shell (1) has top cap (7), the inside rotation of top shell (1) installs bi-directional screw (2), its characterized in that: be provided with joint struts mechanism (4) on bi-directional screw rod (2), joint struts mechanism (4) are used for the stable struts of human knee joint, rotate on the bottom surface of top shell (1) and install stable supporting component (5), stable supporting when stable supporting component (5) are used the structure, be provided with normal saline storage component (6) on the internal surface of top shell (1) through the mounting bracket, normal saline storage component (6) are used for the leading-in of postoperative knee joint struts back saline.
2. The knee joint spreader according to claim 1, wherein the joint spreader mechanism (4) comprises a mounting plate (43), a threaded moving block (42) is fixedly mounted at the top end of the mounting plate (43), the threaded moving block (42) is in threaded connection with the bidirectional screw (2) through a screw hole formed in the threaded moving block, a travel groove is formed in the bottom of the top shell (1), and the mounting plate (43) is in sliding connection with the travel groove.
3. The knee joint spreader according to claim 2, wherein the bottom of the mounting plate (43) is rotatably provided with a spreader support assembly (45), the spreader support assembly (45) comprises a rotating shaft (451), the rotating shaft (451) is rotatably provided in a rotating hole formed in the bottom of the mounting plate (43), a torsion spring (454) is sleeved outside the rotating shaft (451), one end of the torsion spring (454) is fixedly connected with the inner wall of the rotating hole, the bottom end of the rotating shaft (451) is fixedly provided with a connecting shaft (452), the bottom end of the connecting shaft (452) is fixedly provided with a spreader support blade (453), and a non-slip sheet (455) is provided on the side wall of the spreader support blade (453).
4. A knee joint spreader according to claim 3, wherein a clamping component (44) is arranged on an outer wall of one side of the mounting plate (43), the clamping component (44) comprises a clamping plate (441), the clamping plate (441) is mounted on a side wall of the mounting plate (43) through a hinge, a convex ball (442) and a clamping pin (443) are respectively and fixedly mounted on outer walls of two sides of the clamping plate (441), and a clamping hole which is mutually matched with the clamping pin (443) is formed in a side wall of the connecting shaft (452).
5. The knee joint spreader according to claim 4, wherein the illuminating lamp (8) is fixedly installed on the bottom surface of the top cover (7), a top shaft is fixedly installed at the top of the threaded moving block (42), an arc-shaped condensing plate (41) is fixedly installed at the top end of the top shaft, and the arc-shaped condensing plate (41) is located on the outer side of the illuminating lamp (8).
6. The knee joint spreader according to claim 5, wherein the stabilizing support assembly (5) comprises a longitudinal threaded shaft (51), the longitudinal threaded shaft (51) is rotatably mounted on the bottom surface of the top cover (7), a driven bevel gear (52) is fixedly mounted on the outer portion of the longitudinal threaded shaft (51), a driving bevel gear (9) is fixedly mounted on the middle portion of the bidirectional screw (2), and the driving bevel gear (9) and the driven bevel gear (52) are in meshed connection.
7. The knee joint spreader according to claim 6, wherein the external thread of the longitudinal threaded shaft (51) is provided with a movable threaded sleeve rod (55), side limiting slide rods (54) are fixedly arranged on the outer walls of two sides of the movable threaded sleeve rod (55), and one end of each side limiting slide rod (54) is in sliding connection with a sliding groove arranged on the inner side wall of the top shell (1).
8. The knee joint spreader according to claim 7, wherein a side pressing plate (53) is fixedly installed on the outer wall of the other side of the movable threaded sleeve rod (55) through a connecting rod, a bottom connecting rod (56) is fixedly installed at the bottom end of the movable threaded sleeve rod (55), and a stable supporting plate (57) is rotatably installed at the bottom end of the bottom connecting rod (56) through a movable part.
9. The knee joint spreader according to claim 8, wherein two joint spreading mechanisms (4) are provided, the physiological saline storage assembly (6) is located between the two joint spreading mechanisms (4), the physiological saline storage assembly (6) comprises a reservoir (61), and a water injection pipe (62) is fixedly installed on one side outer wall of the reservoir (61).
10. The knee joint spreader according to claim 9, wherein one end of the water injection pipe (62) penetrates through and extends to the outer side of the top shell (1), a water guide pipe is fixedly arranged on the bottom surface of the reservoir (61), a water guide ball (63) is fixedly arranged on the bottom end of the water guide pipe, and the water guide ball (63) is located on the outer side of the top shell (1).
CN202211609208.4A 2022-12-14 2022-12-14 Knee joint spreader Active CN116035633B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116616842A (en) * 2023-07-20 2023-08-22 北京爱康宜诚医疗器材有限公司 Bidirectional spreader

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US20190053833A1 (en) * 2015-10-09 2019-02-21 LinkSPINE, Inc. Spinal multi-level facet joint stabilization system
CN209863925U (en) * 2019-02-21 2019-12-31 南通市肺科医院(南通市第六人民医院) Full knee joint operation struts ware
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