CN205514725U - Medical wrist arthroscopic surgery multi -body position traction frame - Google Patents

Abstract

A multi-position traction frame for medical wrist arthroscopic surgery, which consists of a base plate, a fixing nut, a fixing seat, a main column, an adjusting column, a connecting rod, a cross bar, a positioning pin, a fixing vertical plate, a locking nut, a lifting screw, a locking Consists of tight handwheel and pinch sleeve. There is a fixed seat on the plane of the rectangular bottom plate with outriggers. The end teeth on the fixed seat cooperate with the end teeth of the main column and the connecting rod, and are locked by the threaded rotating handwheel and connected by the cylinder. Insert the adjustment column into the rod, and rotate the hand wheel to lock; one end of the cross bar is inserted into the top of the adjustment column and fixed horizontally by the positioning pin, and the other end is vertically installed to move the lifting screw horizontally, and the lifting screw is connected to the pinch sleeve; there are three on the bottom plane. Set up the through groove, and install the fixed vertical plate in the through groove. The utility model adopts a paraxial structure that can be adjusted in multiple directions, which is stable in structure, convenient to use, fast and reliable, and is convenient for multi-position traction of the patient's wrist joint and X-ray perspective observation and monitoring during the operation.

Description

A multi-position traction frame for medical wrist arthroscopic surgery

technical field

The utility model relates to the technical field of medical instruments, in particular to a multi-position traction frame for medical wrist arthroscopic surgery.

Background technique

In recent years, minimally invasive wrist arthroscopic surgery has developed rapidly, making wrist surgery less traumatic and patients recovering faster after surgery. But the wrist joint space is narrow, in order to facilitate arthroscopic examination and endoscopic operation, it is necessary to pull the wrist joint during the operation. The existing traction devices for wrist arthroscopic surgery are generally vertical traction. The main column is located in the center of the palm side of the wrist joint, and the forearm and wrist are suspended vertically through the main column. Therefore, it is difficult to perform an auxiliary volar incision of the wrist joint during the operation. Or put in internal fixation for fixation operation. At present, the traction device needs to be disassembled in the actual operation, and the upper limb should be placed horizontally and stably on the operating table to facilitate operation. At this time, due to the loss of traction, arthroscopic observation and monitoring cannot be performed at the same time. In addition, the main column of the existing traction device is located in the middle of the palm side of the wrist joint, and if X-ray fluoroscopy is performed during the operation, it will block the imaging. Therefore, a multi-position traction device is developed, which can not only satisfy the existing vertical traction, but also conveniently adjust the position of the forearm between vertical and horizontal placement when the traction is maintained; at the same time, the main adopter of the traction frame It is a task to be completed in this technical field to use a new structure for the column to avoid blocking the X-ray by the main column.

Contents of the invention

The object of the present invention is to provide a multi-position traction frame for medical wrist arthroscopic surgery which is convenient to use, fast and reliable, and is convenient for performing multi-position traction and X-ray fluoroscopy on the patient's wrist joint during the operation.

In order to achieve the above purpose, the utility model adopts the following structural principle: a multi-position traction frame for medical wrist arthroscopic surgery, which is composed of a base plate, a fixing nut, a fixing seat, a main column, an adjusting column, a connecting rod, a cross bar, a positioning pin, a fixed Standing plate, locking screw nut, lifting screw, locking handwheel, and pinch sleeve are composed. Its characteristics are: the longitudinal ends of the rectangular bottom plate are bent downwards to form legs, and on the plane at one end of the bottom plate, the fixing nut thread is fitted and fixed. Seat, the side surface of the fixed seat is the end face tooth, which is matched with the end face tooth corresponding to the lower end of the main column, locked by the threaded rotating hand wheel, and the end face tooth on the other side of the upper end of the main column is corresponding to the lower end side of the connecting rod. The end face teeth are matched and locked by the threaded rotating handwheel. The upper end of the connecting rod is a hollow cylinder. The inner basin of the cylinder and the insertion adjustment column are locked by the threaded rotating handwheel. Positioning through hole, the vertical through hole on one end of the cross bar fits into the top of the adjustment column, the positioning pin is inserted into the positioning through hole at one end of the cross bar and fixed, the other end of the cross bar is a horizontal vertical slot, fixed on the vertical slot Thread locking screw nut, the lifting screw is vertically screwed into the thread locking nut and passed through the vertical groove of the cross bar, the bottom end of the lifting screw is fixedly connected to the pinch sleeve; the other end of the bottom plate is provided with two sets of longitudinal Through slots and a set of horizontal slots, the lower end of the fixed vertical plate is parallel to fix two threaded T-shaped columns, which are correspondingly inserted into a set of two vertically parallel through slots. After sliding and positioning, the nuts fix the threaded T-shaped columns and fix the vertical plate plane The through groove on the top is vertically corresponding to the pinch sleeve on the bottom end of the lifting screw, forming a multi-position traction frame for medical wrist arthroscopic surgery.

The main column of the utility model is matched with the adjustment column through the connecting rod and the end face teeth, and can swing and adjust the plane position in the horizontal plane of the bottom plate. After the position is determined, it is locked by the locking handwheel and installed on the adjustment column. The crossbar moves up and down to adjust the height position by adjusting the multiple positioning through holes evenly arranged on the column body. After the position is determined, it is positioned and fixed by the positioning pin, and the vertical lifting screw on the other end of the rotating crossbar passes through the lock. Tighten the nut to adjust the vertical position of the pinch sleeve. The vertical movement of the lifting screw in the vertical channel on the cross bar realizes the position adjustment of the pinch sleeve along the longitudinal direction of the bottom plate. The fixed vertical plate can be carried out in the three sets of slots on the bottom plate. Select Install, slide to confirm the position and fix it. The bottom plate is made of aluminum alloy. The legs folded down at both ends of the floor reduce the overall weight and facilitate the installation of various parts of the instrument. The overall surface is sandblasted to avoid the reflection of the shadowless light on the metal surface during the operation and interfere with the surgical field of vision. The overall structure can be disassembled into several parts, which is convenient for postoperative cleaning, disinfection and storage.

When the utility model is in use, it can be placed on the fixed vertical plate according to the patient's left and right hands and different positions, and the patient's forearm can be fixed with surgical straps. , after locking each movable part, the patient's left/right hand can be connected through the traction rope on the pinch sleeve to realize multi-position traction.

The multi-directional adjustable paraxial structure adopted by the utility model has a stable structure, is convenient to use, is fast and reliable, and is convenient for multi-position traction and X-ray fluoroscopy observation and monitoring of the patient's wrist joint during the operation process, thereby achieving the purpose of the invention.

Description of drawings

Fig. 1 is the structural representation of the utility model

Figure 2 is the left view of Figure 1

Figure 3. A top view of Figure 1

Figure 4 is a partial schematic diagram of direction A in Figure 1

detailed description:

The utility model is described in detail below in conjunction with the accompanying drawings. Figures 1 to 4 show the structural principle of the utility model, a multi-position traction frame for medical wrist arthroscopic surgery, consisting of a base plate 11, a fixing nut 1, a fixing seat 2, and a main column 3. Adjusting column 4, connecting rod 15, cross bar 6, positioning pin 5, fixed vertical plate 10, locking nut 7, lifting screw 8, locking handwheel A12, locking handwheel B13, locking handwheel Composed of C14 and pinch sleeve 9, its features are: the longitudinal ends of the rectangular bottom plate 11 are bent downwards to form legs, on the plane at one end of the bottom plate, the fixing nut 1 is threaded to cooperate with the fixing seat 2, and the side elevation of the fixing seat 2 is an end surface tooth Cooperate with the corresponding end face teeth on one side of the lower end of the main column 3, and lock it by the threaded rotating handwheel A12, and the end face teeth on the other side of the upper end of the main column 3 cooperate with the corresponding end face teeth on the lower end side of the connecting rod 15, by The threaded rotating handwheel B13 is locked, the upper end of the connecting rod 15 is a hollow cylinder, and the adjusting column 4 is inserted into the cylinder, locked by the threaded rotating handwheel C14, and the adjusting column 4 is vertically and evenly arranged with multiple positioning through holes 17 , the vertical through hole on one end of the cross bar 6 fits into the top of the adjustment column 4, the positioning pin 5 is fixed after being inserted into the positioning through hole at the end of the cross bar 6, the other end of the cross bar 6 is a horizontal vertical through groove, and the vertical through groove The upper fixed thread locking screw nut 7, the lifting screw 8 is vertically screwed into the thread locking screw nut 7 and passes through the vertical groove of the cross bar 6, the bottom end of the lifting screw 8 is fixedly connected to the pinch sleeve 9; the bottom plate 11 is another There are two sets of longitudinal through grooves and one set of transverse through grooves 16 on the plane at one end, and the lower end of the fixed vertical plate 10 is fixed in parallel with two threaded T-shaped columns, which are correspondingly inserted into a set of two vertically parallel through grooves 16 after being slid and positioned. , the nut is fixed threaded T-shaped column, and the through groove 16 on the plane of the fixed vertical plate 10 is vertically corresponding to the pinch sleeve 9 on the bottom end of the lifting screw 8, forming a multi-position traction frame for medical wrist arthroscopic surgery.

Claims (1)

1. null1. Medical wrist arthrocsopic surgery many positions traction frame，By base plate (11)、Fixing nut (1)、Fixing seat (2)、Head tree (3)、Adjust column (4)、Connecting rod (15)、Cross bar (6)、Shop bolt (5)、Fixed board (10)、Locking screw (7)、Elevating screw (8)、Locking handwheel A、B、C(12、13、14) and pinch set (9) constitute，It is characterized in that: rectangular base plate (11) longitudinal two ends downward bending becomes leg，In the plane of base plate (11) one end，Fixing nut (1) threaded engagement mounting-fixing base (2)，Fixing seat (2) side elevation is end-tooth，The end-tooth corresponding with head tree (3) side, lower end coordinates，Locked by screw thread rotation handwheel A (12)，The end-tooth that the end-tooth of head tree (3) upper end opposite side is corresponding with connecting rod (15) side, lower end coordinates，Locked by screw thread rotation handwheel B (13)，Connecting rod (15) upper end is hollow cylinder，Cylinder is inserted into adjusting column (4)，Locked by screw thread rotation handwheel C (14)，Adjust the longitudinally multiple positioning through hole of the upper and lower uniform arrangement (17) of column (4) cylinder，Adjustment column (4) top is inserted in vertical through hole cooperation on cross bar (6) one end，The shop bolt (5) positioning through hole from cross bar (6) termination, one end is fixing after inserting，Cross bar (6) other end is horizontal vertical through slot，Screw-threaded coupling screw (7) is fixed on vertical through slot，Elevating screw (8) vertically coordinates screw-in screw-threaded coupling screw (7) interior and passes the vertical through slot of cross bar (6)，Interface unit set (9) is fixed in elevating screw (8) bottom，Two groups of longitudinal direction grooves (16) and one group of horizontal groove (16) is had in the plane of base plate (11) other end，Fixed board (10) lower end is parallel fixes two T-shaped posts of screw thread，Correspondence is slided in being inserted one group of two longitudinal directions groove (16) arranged side by side behind location，Nut fixes the T-shaped post of screw thread，It is vertical corresponding that groove (16) in fixed board (10) plane overlaps (9) with pinching on elevating screw (8) bottom，Constitute a kind of Medical wrist arthrocsopic surgery many positions traction frame.