CN113729897B - Miniature phalangeal extension device for hand and foot surgery - Google Patents
Miniature phalangeal extension device for hand and foot surgery Download PDFInfo
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- CN113729897B CN113729897B CN202111047621.1A CN202111047621A CN113729897B CN 113729897 B CN113729897 B CN 113729897B CN 202111047621 A CN202111047621 A CN 202111047621A CN 113729897 B CN113729897 B CN 113729897B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/04—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints
- A61F5/042—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints for extension or stretching
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention discloses a miniature phalangeal lengthening device for hand and foot surgery, and belongs to the technical field of surgical equipment. The miniature phalangeal lengthening device for hand and foot surgery comprises a hollow column body, wherein an expansion assembly is arranged in the hollow column body, and the expansion assembly penetrates through the hollow column body to be connected with an expansion frame; the expansion assembly penetrates through the expansion frame and is connected with an adjusting assembly and a enclasping assembly, and the adjacent adjusting assembly and enclasping assembly are movably connected through a connecting assembly; the enclasping assembly positioned in the center is connected with the adjusting assembly through an elastic telescopic rod, and a spring piece C is movably sleeved outside the elastic telescopic rod; four limiting sliding grooves are formed in the expansion frame, and an inner sliding block is connected to the limiting sliding grooves in a sliding mode; the invention solves the problems that the phalangeal lengthening device in the prior art can not adopt an adaptive fixing measure to the knuckle and the abdomen, is more troublesome to detach from an affected part, and is easy to cause secondary injury to the affected part due to improper force.
Description
Technical Field
The invention belongs to the technical field of surgical equipment, and particularly relates to a miniature phalangeal lengthening device for hand and foot surgery.
Background
The bone extension, namely stretching and osteogenesis, is to cut bone, keep soft tissue and blood supply, fix both ends with the specially-made traction device, apply the pulling force gradually to pull the bone segment slowly by applying the principle of tensile stress, stimulate the organism tissue continuously, excite the regeneration potential of human tissue, make the osteotomy gap form new bone, achieve the goal of bone regeneration, because of injury or congenital cause the phalanx is shortened, need to lengthen the phalanx, make the phalanx shortened reach the normal length.
However, the phalangeal lengthening device in the prior art cannot adopt an adaptive fixing measure on the knuckle and the phalangeal part, the phalangeal lengthening process is unstable, the phalangeal is easy to deform during the phalangeal lengthening, the phalangeal lengthening device is more troublesome to detach from an affected part, and secondary wounds are easily caused to the affected part due to improper force application; the invention provides a miniature phalangeal lengthening device for hand and foot surgery, which aims to solve the problems.
Disclosure of Invention
The invention aims to solve the following problems in the prior art:
(1) The phalangeal lengthening device in the prior art cannot adopt an adaptive fixing measure on the knuckle and the phalangeal part, so that the phalangeal lengthening process is unstable and the phalangeal is easy to deform during the extension; and the utility model is more troublesome to detach from the affected part, and is easy to cause secondary wounds to the affected part due to improper force.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the miniature phalangeal lengthening device for the hand and foot surgery comprises a hollow column body, wherein an expansion assembly is arranged inside the hollow column body, the expansion assembly penetrates through the hollow column body and is connected with an expansion frame, and the expansion frame is connected with one side of the hollow column body; the expansion assembly penetrates through the expansion frame and is connected with an adjusting assembly and a enclasping assembly, and the adjacent adjusting assembly and enclasping assembly are movably connected through a connecting assembly; the enclasping assembly and the adjusting assembly which are positioned in the center are connected through an elastic telescopic rod, and a spring piece C is movably sleeved outside the elastic telescopic rod.
Preferably, the expansion frame is provided with four limiting sliding grooves, and the limiting sliding grooves are connected with an inner sliding block in a sliding manner; the front end of the inner slide block is fixedly connected with a connecting rod, and the tail end of the connecting rod is connected with the enclasping assembly.
Preferably, the expansion frame is far away from hollow cylinder one side central authorities fixedly connected with hold the ring, hold ring central authorities through spring part A swing joint have flexible cladding shell, flexible cladding shell contacts with the fingertip.
Preferably, the expansion assembly comprises an outer sleeve, the tail end of the outer sleeve is connected with the outside of the inner sleeve in a sliding manner, and one end of the inner sleeve is fixedly connected with one side, far away from the accommodating ring, of the center of the expansion frame; the inner sleeve is characterized in that the other end of the inner sleeve is connected with a threaded column in a threaded manner, the front end of the threaded column is fixedly connected with a knob, the knob extends outwards through the front end of the outer sleeve, and the knob is rotationally clamped with the front end of the outer sleeve.
Preferably, the outer side wall of the outer sleeve is fixedly connected with four connecting seats, and the front end and the rear end of each connecting seat are respectively and rotatably connected with a connecting inclined rod; the connecting diagonal rod is characterized in that the tail end of the connecting diagonal rod is rotationally connected with a clamping plate, a clamping protrusion is arranged on the outer side of the clamping plate, a clamping groove is formed in the hollow cylinder, and the clamping plate is matched with the hollow cylinder through the clamping protrusion and the clamping groove.
Preferably, the enclasping assembly comprises enclasping blocks A and enclasping blocks B, wherein the enclasping blocks A and the enclasping blocks B are arranged at intervals; clamping pieces and positioning pieces are arranged between the adjacent enclasping blocks A and B, and four groups of clamping pieces and positioning pieces are connected end to end.
Preferably, the clamping piece comprises two clamping rods, the clamping rods are respectively connected with the inner sides of the enclasping blocks A and B in a rotating way through rotating columns, and the front ends of the clamping rods are provided with magnetic arc-absorbing blocks; the locating piece is fixedly connected with the inner sides of the enclasping block A and the enclasping block B respectively, the tail end of the locating piece is fixedly connected with a center column, and the magnetic arc suction block is movably clamped outside the center column.
Preferably, the adjusting assembly comprises two groups of adjusting blocks A and adjusting blocks B, the centers of the two adjusting blocks A are fixedly connected with a containing sleeve, and the centers of the two adjusting blocks B are fixedly connected with an extension rod; the outside of the extension rod is movably sleeved with a spring piece B, and two ends of the extension rod are respectively movably inserted into the two accommodating sleeves; the adjacent adjusting blocks A and the enclasping blocks A are connected through elastic telescopic rods, and the adjacent adjusting blocks B and the enclasping blocks B are connected through elastic telescopic rods.
Preferably, the connecting assembly comprises a positioning block A and a positioning block B, wherein the positioning block A is fixedly connected to the outer side of the enclasping block A or the enclasping block B, and the positioning block B is fixedly connected to the outer side of the adjusting block A or the adjusting block B; the center of the adjusting block A is fixedly connected with a threaded pipe, the front end of the threaded pipe is in threaded connection with a threaded inner rod, the threaded inner rod is in threaded connection with the center of the positioning block B, and the tail end of the threaded inner rod is matched with a miniature motor.
Compared with the prior art, the invention provides a miniature phalangeal lengthening device for hand and foot surgery, which has the following beneficial effects:
(1) According to the finger-holding device, the extension assembly is arranged, when the finger-holding device is used, a finger which needs to be used for finger bone extension sequentially passes through the first adjusting assembly, the first holding assembly, the second adjusting assembly and the second holding assembly from the adjusting assemblies at the tail end, the finger tip is propped against the flexible coating shell in the accommodating ring, then the two groups of holding assemblies are respectively positioned at two knuckle positions and the two adjusting assemblies are respectively and adaptively positioned at two finger abdomen positions through adjusting all parts in the holding assemblies and the adjusting assemblies, and a flexible layer is arranged in the holding assemblies and the adjusting assemblies, so that the finger-holding device is in flexible contact with the finger skin.
(2) When the device is used, the adjusting component and the enclasping component are driven to be unfolded or tightened through the adjusting expansion component, namely, the threaded column is rotated through rotating a knob at the tail end of the threaded column, the outer sleeve can be driven to move forwards when the threaded column rotates, the outer sleeve drives the clamping plate to expand outwards through the connecting diagonal rod, the clamping plate is gradually contacted with the hollow column until corresponding clamping with the clamping groove of the inner wall of the hollow column under the limiting effect of the inner sliding block and the expansion frame, and the adjusting component and the enclasping component can be driven to be unfolded through the inner sliding block and the connecting rod at the moment, so that the device is convenient to take down from the fingers of a patient.
(3) According to the invention, the adjusting component and the enclasping component are arranged, and when the adjusting component and the enclasping component are driven to be unfolded or tightened by the expanding component: the distance between the adjusting block A and the adjusting block B in the adjusting assembly is changed, so that the extension rod is driven to slide in or slide out along the accommodating sleeve, and the contact between the extension rod and the skin of the finger is adjusted by matching with the spring piece B; the enclasping block A and the enclasping block B in the enclasping assembly are required to be opened firstly in the unfolding or tightening process, so that the clamping piece and the positioning piece are separated from a locking state, and then the clamping piece and the positioning piece are respectively driven to move when the interval between the enclasping block A and the enclasping block B is changed, so that the device is convenient to install and remove.
(4) According to the invention, the threaded inner rod is driven to rotate by the miniature motor through arranging the plurality of groups of connecting components, so that the threaded inner rod extends inwards or outwards along the threaded pipe, the distance between the adjacent adjusting components and the enclasping components is further adjusted, and the distance between the adjusting components and the enclasping components in the middle can be adjusted by the elastic telescopic rod and the spring piece C, so that the device is suitable for knuckle lengths of different patients.
Drawings
Fig. 1 is a schematic structural view of a miniature phalangeal lengthening device for hand and foot surgery according to the present invention;
FIG. 2 is a schematic view of the steering one hundred eighty degrees of FIG. 1 in a miniature phalangeal extender for hand and foot surgery according to the present invention;
FIG. 3 is a schematic view of a part of a miniature phalangeal lengthening device for hand and foot surgery according to the present invention;
FIG. 4 is a schematic view of the inside of a hollow cylinder of a miniature phalangeal extender for hand and foot surgery according to the present invention;
FIG. 5 is a schematic view showing the separation of the expansion assembly of the miniature phalangeal extender for hand and foot surgery according to the present invention;
fig. 6 is a second schematic diagram illustrating the disassembly of the expansion assembly of the miniature phalangeal elongation device for hand and foot surgery according to the present invention;
FIG. 7 is a schematic view showing the connection of the extension assembly to the adjustment assembly and the clasping assembly in the miniature phalangeal extension device for hand and foot surgery according to the present invention;
FIG. 8 is a schematic illustration of the connection of the adjustment assembly and the clasping assembly in the miniature phalangeal extender for hand and foot surgery according to the present invention;
FIG. 9 is a second schematic illustration of the connection of the adjustment assembly and the clasping assembly in the miniature phalangeal extender for hand and foot surgery according to the present invention;
FIG. 10 is a schematic diagram showing the disassembly of the adjustment assembly and the clasping assembly of the miniature phalangeal extender for hand and foot surgery according to the present invention;
fig. 11 is a schematic connection diagram of a positioning member and a clamping member in a miniature phalangeal lengthening device for hand and foot surgery according to the present invention.
The reference numerals in the figures illustrate:
1. a hollow cylinder; 2. an expansion frame; 201. a receiving ring; 202. a flexible cover; 203. a spring member A; 204. an inner slide; 3. an adjustment assembly; 301. an adjusting block A; 302. an adjusting block B; 303. accommodating the sleeve; 304. an extension rod; 305. a spring member B; 4. a clasping assembly; 401. a holding block A; 402. a holding block B; 403. a positioning piece; 404. a clamping member; 405. a center column; 406. a spin column; 5. an expansion component; 501. an outer sleeve; 502. a clamping plate; 503. an inner sleeve; 504. a threaded column; 505. connecting the inclined rod; 506. a connecting seat; 6. a connection assembly; 601. positioning block A; 602. a threaded tube; 603. a threaded inner rod; 604. a positioning block B; 7. a connecting rod; 8. an elastic telescopic rod; 9. and a spring member C.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Example 1:
referring to fig. 1-6, a miniature phalangeal extension device for hand and foot surgery comprises a hollow column 1, wherein an extension assembly 5 is arranged in the hollow column 1, the extension assembly 5 penetrates through the hollow column 1 and is connected with an extension frame 2, and the extension frame 2 is connected with one side of the hollow column 1; the expansion assembly 5 penetrates through the expansion frame 2 and is connected with the adjusting assembly 3 and the enclasping assembly 4, and the adjacent adjusting assembly 3 and the enclasping assembly 4 are movably connected through the connecting assembly 6; the enclasping component 4 positioned in the center is connected with the adjusting component 3 through an elastic telescopic rod 8, and a spring piece C9 is movably sleeved outside the elastic telescopic rod 8;
four limiting sliding grooves are formed in the expansion frame 2, and an inner sliding block 204 is connected in a sliding manner in the limiting sliding grooves; the front end of the inner slide 204 is fixedly connected with a connecting rod 7, and the tail end of the connecting rod 7 is connected with the enclasping assembly 4;
the center of one side of the expansion frame 2 far away from the hollow cylinder 1 is fixedly connected with a containing ring 201, the center of the containing ring 201 is movably connected with a flexible coating shell 202 through a spring piece A203, and the flexible coating shell 202 is contacted with a fingertip;
the expansion assembly 5 comprises an outer sleeve 501, the tail end of the outer sleeve 501 is connected with the outside of an inner sleeve 503 in a sliding way, and one end of the inner sleeve 503 is fixedly connected with one side, far away from the accommodating ring 201, of the center of the expansion frame 2; the other end of the inner sleeve 503 is connected with a threaded column 504 in a threaded manner, the front end of the threaded column 504 is fixedly connected with a knob, the knob extends outwards through the front end of the outer sleeve 501, and the knob is rotationally clamped with the front end of the outer sleeve 501;
four connecting seats 506 are fixedly connected to the outer side wall of the outer sleeve 501, and connecting inclined rods 505 are respectively and rotatably connected to the front end and the rear end of each connecting seat 506; the tail end of the connecting inclined rod 505 is rotationally connected with a clamping plate 502, a clamping protrusion is arranged on the outer side of the clamping plate 502, a clamping groove is formed in the hollow column 1, and the clamping plate 502 is matched with the hollow column 1 through the clamping protrusion;
according to the finger-bone-stretching device, the extension assembly 5 is arranged, when the finger-bone-stretching device is used, a finger which needs to be used for finger bone extension sequentially passes through the first adjustment assembly 3, the first enclasping assembly 4, the second adjustment assembly 3 and the second enclasping assembly 4 from the end adjustment assembly 3, the finger tips are propped against the flexible coating shell 202 in the accommodating ring 201, then the two groups of enclasping assemblies 4 are respectively positioned at two knuckles and the two adjustment assemblies 3 are respectively and adaptively positioned at two finger abdomen positions through adjusting all the parts in the enclasping assemblies 4 and the adjustment assemblies 3, and therefore flexible layers are arranged in the enclasping assemblies 4 and the adjustment assemblies 3, and are in flexible contact with the finger skin;
when the device is used, the adjusting component 3 and the enclasping component 4 can be driven to be unfolded or tightened by adjusting the expanding component 5, namely, the threaded column 504 can be rotated by rotating a knob at the tail end of the threaded column 504, the outer sleeve 501 can be driven to move forwards when the threaded column 504 is rotated, the outer sleeve 501 drives the clamping plate 502 to expand outwards through the connecting diagonal rod 505, the clamping plate 502 is gradually contacted with the hollow cylinder 1 until being correspondingly clamped with a clamping groove on the inner wall of the hollow cylinder 1 under the limiting effect of the inner slide 204 and the expanding frame 2, and at the moment, the adjusting component 3 and the enclasping component 4 can be driven to be unfolded through the inner slide 204 and the connecting rod 7, so that the device is convenient to take down the device from the fingers of a patient.
Example 2:
as shown in fig. 7 to 11, the difference based on embodiment 1 is that:
the enclasping assembly 4 comprises enclasping blocks A401 and enclasping blocks B402, wherein the enclasping blocks A401 and the enclasping blocks B402 are arranged at intervals; clamping pieces 404 and positioning pieces 403 are arranged between the adjacent enclasping blocks A401 and B402, and four groups of clamping pieces 404 and positioning pieces 403 are connected end to end;
the clamping piece 404 comprises two clamping rods which are respectively connected with the inner sides of the enclasping block A401 and the enclasping block B402 in a rotating way through rotating columns 406, and the front ends of the clamping rods are provided with magnetic arc-absorbing blocks; the positioning piece 403 is fixedly connected with the inner sides of the enclasping block A401 and the enclasping block B402 respectively, the tail end of the positioning piece 403 is fixedly connected with a center column 405, and the magnetic arc suction block is movably clamped outside the center column 405;
the adjusting assembly 3 comprises two groups of adjusting blocks A301 and adjusting blocks B302, wherein the centers of the two adjusting blocks A301 are fixedly connected with a containing sleeve 303, and the centers of the two adjusting blocks B302 are fixedly connected with an extension rod 304; the outside of the extension rod 304 is movably sleeved with a spring piece B305, and two ends of the extension rod 304 are respectively movably inserted into the two accommodating sleeves 303;
according to the invention, the adjusting component 3 and the enclasping component 4 are arranged, and when the adjusting component 3 and the enclasping component 4 are driven to be unfolded or tightened by the expanding component 5: the distance between the adjusting block A301 and the adjusting block B302 in the adjusting assembly 3 is changed, so that the extension rod 304 is driven to slide in or slide out along the accommodating sleeve 303, and the contact with the skin of the finger is adjusted by matching with the spring piece B305;
in the process of unfolding or tightening, the clamping piece 404 needs to be opened firstly to enable the clamping piece 404 and the positioning piece 403 to be separated from each other, and then the clamping piece 404 and the positioning piece 403 are respectively driven to move when the distance between the clamping piece A401 and the clamping piece B402 is changed, so that the device is convenient to install and detach.
Example 3:
as shown in fig. 8-10, the difference based on examples 1-2 is that:
the adjacent adjusting block A301 and the enclasping block A401 are connected through an elastic telescopic rod 8, and the adjacent adjusting block B302 and the enclasping block B402 are connected through an elastic telescopic rod 8;
the connecting assembly 6 comprises a positioning block A601 and a positioning block B604, the positioning block A601 is fixedly connected to the outer side of the enclasping block A401 or the enclasping block B402, and the positioning block B604 is fixedly connected to the outer side of the adjusting block A301 or the adjusting block B302; the center of the adjusting block A301 is fixedly connected with a threaded pipe 602, the front end of the threaded pipe 602 is in threaded connection with a threaded inner rod 603, the threaded inner rod 603 is in threaded connection with the center of the positioning block B604, and the tail end of the threaded inner rod 603 is matched with a miniature motor;
according to the invention, by arranging the plurality of groups of connecting assemblies 6, the threaded inner rod 603 can be driven to rotate by the micro motor when the miniature motor is used, so that the threaded inner rod 603 extends inwards or outwards along the threaded pipe 602, the distance between the adjacent adjusting assemblies 3 and the enclasping assembly 4 is further adjusted, and the distance between the adjusting assemblies 3 and the enclasping assembly 4 in the middle can also be adjusted by the elastic telescopic rod 8 and the spring piece C9, so that the miniature motor is suitable for knuckle lengths of different patients.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (3)
1. Miniature phalangeal extension device for hand and foot surgery, including hollow cylinder (1), its characterized in that: an expansion assembly (5) is arranged inside the hollow column body (1), the expansion assembly (5) penetrates through the hollow column body (1) and is connected with an expansion frame (2), and the expansion frame (2) is connected with one side of the hollow column body (1); the expansion assembly (5) penetrates through the expansion frame (2) and is connected with an adjusting assembly (3) and a enclasping assembly (4), and the adjacent adjusting assembly (3) and enclasping assembly (4) are movably connected through a connecting assembly (6); the enclasping component (4) and the adjusting component (3) which are positioned at the center are connected through an elastic telescopic rod (8), and a spring piece C (9) is movably sleeved outside the elastic telescopic rod (8);
four limiting sliding grooves are formed in the expansion frame (2), and an inner sliding block (204) is connected to the limiting sliding grooves in a sliding mode; the front end of the inner sliding block (204) is fixedly connected with a connecting rod (7), and the tail end of the connecting rod (7) is connected with the enclasping assembly (4);
the expansion frame (2) is fixedly connected with a containing ring (201) at the center of one side far away from the hollow cylinder (1), the center of the containing ring (201) is movably connected with a flexible coating shell (202) through a spring piece A (203), and the flexible coating shell (202) is contacted with a fingertip;
the expansion assembly (5) comprises an outer sleeve (501), the tail end of the outer sleeve (501) is connected with the outside of an inner sleeve (503) in a sliding manner, and one end of the inner sleeve (503) is fixedly connected to one side, far away from the accommodating ring (201), of the center of the expansion frame (2); the other end of the inner sleeve (503) is connected with a threaded column (504) in a threaded manner, the front end of the threaded column (504) is fixedly connected with a knob, the knob extends outwards through the front end of the outer sleeve (501), and the knob is rotationally clamped with the front end of the outer sleeve (501);
four connecting seats (506) are fixedly connected to the outer side wall of the outer sleeve (501), and connecting diagonal rods (505) are respectively and rotatably connected to the front end and the rear end of each connecting seat (506); the tail end of the connecting inclined rod (505) is rotationally connected with a clamping plate (502), a clamping protrusion is arranged on the outer side of the clamping plate (502), a clamping groove is formed in the hollow cylinder (1), and the clamping plate (502) is matched with the hollow cylinder (1) through the clamping protrusion and the clamping groove;
the enclasping assembly (4) comprises enclasping blocks A (401) and enclasping blocks B (402), wherein the enclasping blocks A (401) and the enclasping blocks B (402) are arranged at intervals; clamping pieces (404) and positioning pieces (403) are arranged between the adjacent enclasping blocks A (401) and B (402), and four groups of clamping pieces (404) are connected end to end with the positioning pieces (403);
the clamping piece (404) comprises two clamping rods, the clamping rods are respectively connected with the inner sides of the enclasping block A (401) and the enclasping block B (402) in a rotating way through rotating columns (406), and the front ends of the clamping rods are provided with magnetic arc-absorbing blocks; the positioning piece (403) is fixedly connected with the inner sides of the enclasping block A (401) and the enclasping block B (402) respectively, a center column (405) is fixedly connected with the tail end of the positioning piece (403), and the magnetic arc suction block is movably clamped outside the center column (405).
2. A miniature phalangeal extension device for hand-foot surgery according to claim 1, wherein: the adjusting assembly (3) comprises two groups of adjusting blocks A (301) and adjusting blocks B (302), wherein the centers of the two adjusting blocks A (301) are fixedly connected with a containing sleeve (303), and the centers of the two adjusting blocks B (302) are fixedly connected with an extension rod (304); the outside of the extension rod (304) is movably sleeved with a spring piece B (305), and two ends of the extension rod (304) are respectively movably inserted into the two accommodating sleeves (303); adjacent adjusting blocks A (301) and enclasping blocks A (401) are connected through elastic telescopic rods (8), adjacent adjusting blocks A (301) and enclasping blocks A (401) are connected through elastic telescopic rods (8), and adjacent adjusting blocks B (302) and enclasping blocks B (402) are connected through elastic telescopic rods (8).
3. A miniature phalangeal extension device for hand-foot surgery according to claim 2, wherein: the connecting assembly (6) comprises a positioning block A (601) and a positioning block B (604), the positioning block A (601) is fixedly connected to the outer side of the enclasping block A (401) or the enclasping block B (402), and the positioning block B (604) is fixedly connected to the outer side of the adjusting block A (301) or the adjusting block B (302); the center of the adjusting block A (301) is fixedly connected with a threaded pipe (602), the front end of the threaded pipe (602) is in threaded connection with a threaded inner rod (603), the threaded inner rod (603) is in threaded connection with the center of the positioning block B (604), and the tail end of the threaded inner rod (603) is matched with a miniature motor.
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| CN202111047621.1A CN113729897B (en) | 2021-09-08 | 2021-09-08 | Miniature phalangeal extension device for hand and foot surgery |
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| CN202111047621.1A CN113729897B (en) | 2021-09-08 | 2021-09-08 | Miniature phalangeal extension device for hand and foot surgery |
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| CN113729897B true CN113729897B (en) | 2023-04-25 |
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