CN-122005035-A - Combined rod clamp type orthopedic external fixation support pelvis system

CN122005035ACN 122005035 ACN122005035 ACN 122005035ACN-122005035-A

Abstract

The invention discloses a combined rod clamping type orthopedic external fixation support pelvis system, which comprises a supporting mechanism, a mapping mechanism, a clamping module, an inserting mechanism and a side wall clamping mechanism, wherein the supporting mechanism comprises a supporting rod, the shape of the supporting rod is trapezoidal, the opening position at the bottom of the supporting rod corresponds to the position of a patient lying waist, the inner side of a bevel edge of the supporting rod is lifted and clamped and placed on two sides of the lumbar vertebra of the patient, an extension sleeve which is matched with the waistline size of the patient is arranged in the middle of the supporting rod, the extension sleeve is used for controlling the supporting rod to stretch and contract and attach to the waistline of the patient, the mapping mechanism is arranged in the middle of the extension sleeve and used for projecting and mapping lumbar vertebra CT images through a projection lens, the rod body based on a corresponding meshing sleeve and a Z-axis positioning rod extends forwards and backwards, one end of the corresponding meshing sleeve is pushed to stretch forwards and backwards, and forwards and backwards pushing displacement on the position of the Z-axis positioning rod in the later stage is completed.

Inventors

ZHANG HAO
Fan changcheng
XU YINGJIE
CHEN MENGCHEN
HAN DAN
YU HUIQI
HOU YIJIN
DING CHEN
Sui Junhao
LOU WEI
WU CHANGHAO

Assignees

中国人民解放军海军军医大学

Dates

Publication Date: 20260512
Application Date: 20260212

Claims (10)

1. The utility model provides a modular rod clamp type orthopedics external fixation support pelvis system, includes supporting mechanism (1), mapping mechanism (2), centre gripping module (3), grafting mechanism (4) and lateral wall fixture (5), a serial communication port, supporting mechanism (1) is including supporting rod (11), supporting rod appearance is bottom open-ended trapezoidal, supporting rod (11) bottom open position corresponds with patient's flat waist position to the hypotenuse inboard of supporting rod (11) lifts the centre gripping and places in patient's lumbar both sides, and extension sleeve (12) of adaptation patient waistline size have been cup jointed at the middle part of this supporting rod (11) top crossbeam, two hypotenuses laminating in the patient waistline of extension sleeve (12) telescopic control supporting rod (11), extension sleeve (12) middle part is provided with mapping mechanism (2); The mapping mechanism (2) projects and maps lumbar CT images of a patient through a projection lens (28); the mapping mechanism (2) comprises a limit sleeve (21) arranged in the middle of the extension sleeve (12), a transverse stay bar (22) is arranged on the outer peripheral surface of the limit sleeve (21), and a fastening screw (23) is inserted on the surface of the transverse stay bar (22); The lumbar vertebra adjusting device further comprises a clamping module (3), wherein the clamping module (3) is placed at the top of the lumbar vertebra of a patient in an extending mode, and the position of the inserting mechanism (4) is adjusted by unscrewing the Z-axis positioning rod (31); the two Z-axis positioning rods (31) are respectively clamped at two sides of the top of the support rod (11) in parallel, and the axial direction of the Z-axis positioning rods (31) is perpendicular to the axial direction of the support rod (11); The connection part of the two Z-axis positioning rods (31) and the support rod (11) is also provided with a telescopic hasp, and the hasp tightens and adjusts the position of the support rod (11) through the Z-axis positioning rods (31); The two grafting mechanisms (4) are arranged and respectively fixed on the side walls of the two Z-axis positioning rods (31), the grafting mechanisms (4) are suspended through the two Z-axis positioning rods (31) and correspond to the skin positions at the top of the lumbar vertebrae back of a patient, the grafting mechanisms (4) comprise bone nails (41) arranged on the two sides of the Z-axis positioning rods (31), and the two bone nails (41) extend downwards through the clamp and are propped into the pelvis of the back of the patient lying on the back; The side wall clamping mechanisms (5) are symmetrically arranged at two bevel edge positions of the supporting rod (11), a limiting sliding sleeve (51) is arranged at the contact end of the side wall clamping mechanisms (5) and the supporting rod (11), and the limiting sliding sleeve (51) adjusts the connection tightness of the supporting rod (11) and the side wall clamping mechanisms (5) through a damping nut (52).
2. The combined rod clamp type orthopedic external fixation support pelvis system of claim 1, wherein an L-shaped support (24) is fixedly installed in the middle of the transverse support rod (22), toughening strips (25) are respectively arranged on the edges of the surfaces of the L-shaped support (24), projector installation sheets (26) are arranged at the tail ends of the L-shaped support (24) rods, a projector (27) is installed on the surface of each projector installation sheet (26) through an adapting screw, the projector (27) comprises a shell, a projection lens (28) is arranged at the bottom of the shell towards a patient, a lens (29) is arranged in the middle of the bottom end of each projection lens (28), and the position of a projected image of each projection lens (28) corresponds to the position of lumbar vertebrae of the patient lying on an operation table.
3. The combined rod clamp type orthopedic external fixation support pelvis system as claimed in claim 2, wherein a projection rubber tube (291) is arranged at the top of the projector (27), an image transmission area of the projection rubber tube (291) corresponds to a terminal position for identifying and positioning, an image of the projector (27) is matched with a three-dimensional scanning pelvis electronic position of a patient through a set positioning point, an imaging lens (281) is arranged at the top of the projection lens (28), a conical cover (282) is arranged outside the imaging lens (281), a positioning point capturing module (283) is arranged in the middle of the conical cover (282), a positioning point between a bone nail (41) and a projection image is captured by the positioning point capturing module (283), a positioning point color change is triggered, a projection end is arranged at the top of the conical cover (282), and a Micro-OLED screen (284) is arranged at the top of the conical cover (282), and an image presentation end of the Micro-OLED screen (284) is electrically connected with an HDMI line (285) and an externally connected three-dimensional model reading unit.
4. The combined rod clamp type orthopedic external fixation support pelvis system as claimed in claim 3, wherein one end of the projection rubber tube (291) is connected with an external terminal electric signal through a wire, and the mapping end of the lens (29) is matched with the dimension of pelvis projection of a patient; The inside of projector (27) is provided with the point location and triggers the unit that discolours, mirror image setpoint position phase-match that projector (27) projected through lens (29), supplementary centre gripping module (3) location pelvis, and the pelvis is pointed to the point, avoids arterial vessel.
5. The combined rod clamping type orthopedic external fixation support pelvis system of claim 1, wherein the clamping module (3) comprises two Z-axis positioning rods (31) which are slidably arranged on two sides of the top of the supporting rod (11), meshing sleeves (32) are arranged on the rod body sides of the two Z-axis positioning rods (31), limiting assemblies (33) are arranged on the sides of the meshing sleeves (32), conical sleeves (34) are arranged in the middle of the limiting assemblies (33), and the upper end and the lower end of each conical sleeve (34) are arranged in a clamping mode through positioning knobs (35).
6. The combined rod clamping type orthopedic external fixation support pelvis system of claim 5, wherein a loop bar (36) is sleeved in the middle of the limiting component (33), a bolt hole is formed in the side of the limiting component (33), a bolt (361) penetrates through the hole position of the bolt hole, and one end of the bolt (361) is fixed with the loop bar (36); a sliding rail (371) is arranged at the bottom of the loop bar (36), a limit slider (372) is arranged at the bottom of the sliding rail (371), and an extension assembly (37) is arranged at the bottom of the limit slider (372); the extension assembly (37) is provided with two extension assemblies, the surfaces of the two extension assemblies (37) are in sliding sleeve connection with sliding sleeve rods (38), extension rods (39) are connected between the two sliding sleeve rods (38), and an adjusting rod (391) is sleeved in the middle of each extension rod (39).
7. The combined rod clamp type orthopedic external fixation support pelvis system of claim 6, wherein a limiter (47) is arranged at the joint of the bone nail (41) and the sliding sleeve rod (38), a limit knob (46) is arranged on the surface of the limiter (47), a limit clamp (42) is arranged on the side wall of the limiter (47), the limit clamp (42) and the middle clamp of the bone nail (41) are arranged, a laser mounting collar (43) is arranged at the top end of the bone nail (41), and a laser positioner (45) is connected to the side wall of the laser mounting collar (43) through a connecting cross rod (44).
8. The combined rod clamping type orthopedic external fixation support pelvis system as claimed in claim 1, wherein the side wall clamping mechanism (5) comprises a limit sliding sleeve (51) arranged on the side wall of the support rod (11), a damping nut (52) is arranged on the side of the limit sliding sleeve (51), a pelvis limit nail (53) is arranged on the side of the damping nut (52), a concave support frame (54) is sleeved in the middle of the pelvis limit nail (53), and a laser emitter body (56) is arranged at the top of the concave support frame (54); the side wall of the laser emitter body (56) is provided with a laser emitter head (55), and the positions of the two supporting rods (11) and the bending tube are symmetrically provided with side surface identification mechanisms (6).
9. The combined rod clamp type orthopedic external fixation support pelvis system of claim 8, wherein the side identification mechanism (6) comprises an access base (61) arranged at the bending position of the support rod (11), a wireless receiving and transmitting probe (62) is arranged on the back of the access base (61), one end of the wireless receiving and transmitting probe (62) is connected with a wireless receiving and transmitting sensor on the projector (27), a telescopic tube (63) is connected to a side wall tube of the access base (61), a plurality of telescopic cavity grooves (64) are formed in the outer wall of the telescopic tube (63), and a projection saucer (65) is arranged at a tube orifice of the telescopic tube (63).
10. The combined rod clamp type orthopedic external fixation support pelvis system of claim 9, wherein a projection gasket (66) is arranged on the side wall of the projection pad (65), a spring tube (67) is arranged in the middle of the projection pad (65), a data transmission line (68) is arranged in a tube orifice of the spring tube (67), and one end of the data transmission line (68) is electrically connected with a 3D model projection terminal.

Description

Combined rod clamp type orthopedic external fixation support pelvis system Technical Field The invention relates to the technical field of medical treatment, in particular to a pelvis system of a combined rod clamp type orthopedic external fixation support. Background Orthopedics is a branch of medicine, focusing on diagnosis and treatment of diseases and injuries of bones, joints, muscles, ligaments and related nerve vessels, and covers wounds, degenerative diseases, congenital malformations, sports injuries and the like. The treatment needs to combine with conservative therapy, surgical intervention and rehabilitation training, and pays attention to functional recovery and life quality improvement. The utility model discloses a pelvis fixing correction belt structure disclosed in China patent application number 2022214632. X, which is a relatively mature technology, wherein the pelvis fixing correction belt structure is recorded, the pelvis fixing correction belt structure belongs to the technical field of human pelvis protection devices and comprises a pelvis belt hair sticking fixing belt I, a pelvis fixing belt II is arranged on the side edge of the pelvis belt hair sticking fixing belt I, a magic tape II which is movably adhered to the outer side end of the pelvis belt hair sticking fixing belt I is arranged at the inner side end of the pelvis belt II, a pull belt limit buckle II and a pull belt limit buckle III are arranged between the pelvis belt hair sticking fixing belt I and the pelvis fixing belt II, fixing belts are arranged between the pelvis belt hair sticking fixing belt I and the pull belt limit buckle II, fixing belts are arranged between the pelvis fixing belt II and the pull belt limit buckle III, and length adjusting belts II which sequentially penetrate through the pull belt limit buckle III and the pull belt limit buckle II and extend to the middle part of the outer side of the pelvis belt hair sticking fixing belt I are arranged between the pelvis belt hair sticking fixing belt I and the pelvis belt. Has the characteristics of simple structure, convenient length adjustment and high comfort level. The problem of the commonality poor and length adjustment structural strength low is solved. In addition, the cited patent documents have the following disadvantages: The pelvis external fixation support commonly used clinically at present adopts an integrated or simple assembly structure, mainly comprises stainless steel, has a single structure and has limited adjustment flexibility and mechanical adaptability. Common pelvis external fixation support concentrates on anterior superior iliac spine or posterior iliac region at fixed position in many cases, but often is difficult to realize multidirectional mechanical regulation and control (such as pressurization and traction) simultaneously and does not have good material weight and biocompatibility combination, and the structure is fixed, can not be flexibly combined according to patient pelvis form and fracture type, and the material is single, and weight is great, and patient wearing comfort is poor, and mechanical regulation function is limited, and is difficult to realize accurate pressurization and traction, and fixed point selection is limited, and is difficult to realize multi-plane stable fixation. Disclosure of Invention The invention aims to provide a combined rod clamp type orthopedic external fixation support pelvis system to solve the problems set forth in the background art. The invention provides a combined rod clamping type orthopedic external fixation support pelvis system, which comprises a supporting mechanism, a mapping mechanism, a clamping module, a plugging mechanism and a side wall clamping mechanism, wherein the supporting mechanism comprises a supporting rod, the shape of the supporting rod is a trapezoid with an opening at the bottom, the opening at the bottom of the supporting rod corresponds to the position of a patient lying waist, the inner sides of bevel edges of the supporting rod are lifted and clamped on two sides of the lumbar vertebra of the patient, an extension sleeve which is matched with the waistline size of the patient is sleeved at the middle part of a cross beam at the top of the supporting rod, two bevel edges of the extension sleeve are in telescopic control with the supporting rod to be attached to the waistline of the patient, and the middle part of the extension sleeve is provided with the mapping mechanism; the mapping mechanism projects and maps lumbar CT images of a patient through a projection lens; the mapping mechanism comprises a limit sleeve arranged in the middle of the extension sleeve, a transverse stay bar is arranged on the outer peripheral surface of the limit sleeve, and a fastening screw is inserted in the surface of the transverse stay bar; The device also comprises a clamping module which is arranged at the top of the lumbar vertebra of the patient in an extending way, and t