CN219782627U

CN219782627U - Head traction device

Info

Publication number: CN219782627U
Application number: CN202320519269.5U
Authority: CN
Inventors: 陈乙瑞; 魏丽
Original assignee: Three Gorges Hospital Affiliated To Chongqing University
Current assignee: Three Gorges Hospital Affiliated To Chongqing University
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-10-03
Anticipated expiration: 2033-03-17

Abstract

The utility model discloses a head traction device, which belongs to the field of medical equipment and comprises a traction frame, a traction rope, a tension meter, pulleys, a pulley bracket, a support rod, a support sleeve, a traction adjusting mechanism and a base; a supporting sleeve is arranged above the base; the side wall of the supporting sleeve is provided with a traction force adjusting mechanism which is used for adjusting traction force born by the traction rope; a support rod is inserted into the support sleeve; a pulley bracket is arranged above the supporting rod; the pulley bracket is movably connected with a pulley; the pulleys are matched with the traction ropes, so that two ends of the traction ropes are respectively connected with the traction adjusting mechanism and the traction frame; the tension meter is arranged on the traction rope. The head traction device can avoid the traction rope from pulling the skull of a patient along with the shaking of a heavy object, lighten the pain of the patient, and can accurately adjust and display the traction force.

Description

Head traction device

Technical Field

The utility model belongs to the field of medical equipment, and particularly relates to a head traction device.

Background

The skull traction is a medical method for achieving auxiliary treatment by pulling the head and the cervical vertebra through external traction and the action of counter traction, and is mainly used for treating diseases such as cervical vertebra fracture, dislocation (especially fracture dislocation accompanied by spinal cord injury), dislocation of upper cervical vertebra deformity (dislocation of atlantoaxial joint, calvaria, chiari deformity) and the like. The cervical vertebra fixing device can fix cervical vertebra, protect spinal cord, prevent secondary injury of spinal cord, enlarge intervertebral space, improve nerve compression symptoms, and help cervical vertebra joint reduction, and has good treatment effect.

General skull traction is implemented by using a traction device consisting of a traction frame, a rope, a pulley, a weight and the like. However, cervical injuries of different patients are different, and the required operation positions are different, so that medical staff is required to continuously adjust the head position, find a proper angle for traction and then perform operation, and the operation is time-consuming and labor-consuming; the condition that the height of an operating table needs to be changed in order to match with X-ray fluoroscopy during examination further causes position change of a patient and a traction device on the operating table, however, the common traction device cannot adjust the height of the patient, so that the skull traction condition is affected, and even the cervical vertebra fracture dislocation of the patient is aggravated when the skull traction condition is serious, so that medical accidents are caused.

The patent of application number CN201620895047.3 provides an intraoperative skull traction device, including support base, sleeve pipe, montant, pulley support, pulley, lasso, traction bow and joining in marriage the reorganization, realizes the altitude mixture control to whole traction device through the position adjustment to montant and pulley support to ask for improvement operation accuracy nature. However, when the device is touched by a person or the patient is required to turn over to change the body position, larger swing can be generated between the lasso and the counterweight group, so that the positions of the patient and the traction device are changed, the traction effect is affected, and the traction bow can be caused to pull the skull of the patient due to the swing of the lasso. Because the traction bow is generally fixed by directly driving the skull nails arranged at the left end and the right end into the skull of the patient, even if the lasso only swings slightly, the patient suffers great pain; and the adjustment of the traction force is completed by adding or reducing the weight, which is time-consuming and labor-consuming, and the traction force cannot be accurately adjusted.

Disclosure of Invention

The utility model aims to provide a head traction device aiming at the defects, and aims to solve the problem that the head and the traction force of a patient cannot be accurately adjusted when a rope of the existing traction device is pulled along with shaking of a heavy object. In order to achieve the above purpose, the present utility model provides the following technical solutions:

a head traction device comprises a traction frame, a traction rope, a tension meter, pulleys, pulley brackets, a support rod, a support sleeve, a traction force adjusting mechanism and a base; a supporting sleeve is arranged above the base; the side wall of the supporting sleeve is provided with a traction force adjusting mechanism which is used for adjusting traction force born by the traction rope; a support rod is inserted into the support sleeve; a pulley bracket is arranged above the supporting rod; the pulley bracket is movably connected with a pulley; the pulleys are matched with the traction ropes, so that two ends of the traction ropes are respectively connected with the traction adjusting mechanism and the traction frame; the tension meter is arranged on the traction rope.

Further, the traction force adjusting mechanism comprises a wire winding cylinder, a fixed cylinder and a rotating shaft; the wire winding cylinder is provided with a vertical annular groove, and a handle is arranged on the side wall close to one side of the fixed cylinder; a cavity with a left opening is formed in the wire winding cylinder; a plurality of first bulges are arranged on the side wall of the wire winding cylinder, which is close to one side of the fixed cylinder; the side wall of the fixed cylinder, which is close to one side of the wire collecting cylinder, is provided with first grooves which are in one-to-one correspondence with the first protrusions; the front end of the rotating shaft is fixedly connected with the side wall of the supporting sleeve; the rotating shaft penetrates through the axis of the fixed cylinder and then stretches into the cavity of the wire-collecting cylinder; a limiting part is arranged at the tail end of the rotating shaft; the caliber of the cavity opening is smaller than the length of the limiting piece.

Further, the limiting piece is of an H-shaped structure with the diameters of two ends larger than the diameter of the center; the center of the limiting piece is rotatably connected with a first wafer; a second wafer is movably connected to the rotating shaft on the left side of the limiting piece; the first wafer and the second wafer are consistent in size, and a plurality of springs are arranged between the first wafer and the second wafer; the first wafer, the second wafer and the limiting piece are all positioned in the cavity of the wire-collecting cylinder; the aperture of the cavity opening is smaller than the diameter of the second wafer.

Further, the supporting sleeve is of a hollow structure; the support rod is connected with the support sleeve in a sliding manner.

Further, the pulley support bottom is movably connected with the first support rod top.

Further, a buffer pad is further arranged on the side wall of the limiting piece, which is far away from one side of the fixed cylinder.

The beneficial effects of the utility model are as follows:

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic three-dimensional structure of a portion of the structure of the present utility model;

FIG. 3 is a schematic view of the traction control mechanism of the present utility model with the take-up drum pulled out of the stationary drum;

FIG. 4 is a schematic view of the structure of the traction adjusting mechanism of the present utility model in the case of fixing the take-up tube with the fixing tube;

FIG. 5 is a schematic view of the structure of the stopper of the present utility model;

in the accompanying drawings: 1-traction frame, 2-traction rope, 3-tension meter, 4-pulley, 5-pulley bracket, 6-support rod, 7-support sleeve, 8-traction force adjusting mechanism, 9-base, 81-take-up cylinder, 82-fixed cylinder, 83-rotating shaft, 811-annular groove, 812-handle, 813-cavity, 814-first bulge, 821-first groove, 831-limiting piece, 832-first disc, 833-second disc, 834-spring.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings and the detailed description, but the present utility model is not limited to the following examples.

Embodiment one:

see fig. 1-2. A head traction device comprises a traction frame 1, a traction rope 2, a tension meter 3, a pulley 4, a pulley bracket 5, a support rod 6, a support sleeve 7, a traction adjusting mechanism 8 and a base 9; a supporting sleeve 7 is arranged above the base 9; the side wall of the supporting sleeve 7 is provided with a traction force adjusting mechanism 8, and the traction force adjusting mechanism 8 is used for adjusting traction force born by the traction rope 2; a supporting rod 6 is inserted into the supporting sleeve 7; a pulley bracket 5 is arranged above the supporting rod 6; the pulley bracket 5 is movably connected with a pulley 4; the pulley 4 is matched with the traction rope 2, so that two ends of the traction rope 2 are respectively connected with the traction adjusting mechanism 8 and the traction frame 1; the tension meter 3 is arranged on the traction rope 2. As can be seen from the above structure, the traction frame 1 is generally provided with positioning members at both ends, and is positioned and connected with the skull of the patient by the positioning members. The front end of the traction rope 2 is connected with the traction frame 1, then the stress direction is changed through the pulley 4, and finally the tail end of the traction rope 2 is connected with the traction force adjusting mechanism 8. The traction force adjusting mechanism 8 is arranged on the side wall of the supporting sleeve 7 and is used for adjusting the traction force exerted by the traction rope 2. The traction force adjusting mechanism 8 is not provided with a suspended weight, so that the shaking of the weight caused by collision, touch or body position change of a patient can be avoided, and further, the situation that the head of the patient is pulled along with the shaking of the weight by the traction rope 2, which brings unnecessary pain to the patient, is avoided. Traction force is applied to the tail end of the traction rope 2 through the traction force adjusting mechanism 8, and the traction frame 1 connected with the front end of the traction rope 2 is pulled along with the traction force, so that a patient is pulled by the traction frame 1, and the function of pulling the skull of the patient is realized. The tension meter 3 is arranged on the traction rope 2 and is used for accurately displaying the tension value of the traction rope 2. Typical patient traction force is 3 kg to 10 kg, and in extreme cases, 20 kg, so that a Wei degree WDF-200 digital display type tension meter can be selected to meet the requirements of reading and measuring range. The base 9 is used for providing supporting force for the structure above the base, so that the equipment cannot shift when in use. The supporting sleeve 7 is internally provided with the supporting rod 6, the upper part of the supporting rod 6 is provided with the pulley bracket 5, the pulley bracket 5 is movably connected with the pulley 4, the pulley 4 is movably connected with the pulley bracket 5, the pulley bracket 5 can be supported to rotate, the traction rope 2 passes through the pulley 4, the stress direction of the traction rope 2 can be changed from horizontal to vertical, the whole floor area of the device is convenient to reduce, the distance from the traction frame 1 connected with the traction rope 2 to the pulley 4 can be changed, and the device is suitable for the adjustment requirements of the cranium placing positions of different patients. The head traction device can avoid pain caused by pulling the skull of a patient along with shaking of the heavy object by the traction rope 2, and can display the traction force.

Embodiment two:

see fig. 1-5. On the basis of the first embodiment, the traction adjusting mechanism 8 includes a take-up cylinder 81, a fixed cylinder 82 and a rotating shaft 83; the winding drum 81 is provided with a vertical annular groove 811, and a handle 812 is arranged on the side wall of one side close to the fixed drum 82; a hollow cavity 813 with a left opening is arranged in the wire winding cylinder 81; a plurality of first protrusions 814 are arranged on the side wall of the wire winding cylinder 81, which is close to one side of the fixed cylinder 82; the side wall of the fixed cylinder 82, which is close to one side of the take-up cylinder 81, is provided with first grooves 821 which are in one-to-one correspondence with the first protrusions 814; the front end of the rotating shaft 83 is fixedly connected with the side wall of the supporting sleeve 7; the rotating shaft 83 penetrates through the axle center of the fixed cylinder 82 and then extends into the cavity 813 of the take-up cylinder 81; a limiting piece 831 is arranged at the tail end of the rotating shaft 83; the aperture of the opening of the cavity 813 is smaller than the length of the limiting piece 831. As can be seen from the above structure, the side wall of the take-up drum 81 near the fixed drum 82 is provided with a handle 812, and the take-up drum 81 can be rotated by rotating the handle. The center of the outer wall of the wire winding cylinder 81 is provided with a vertical annular groove 811, the annular groove 811 is provided with a connecting piece connected with the tail end of the traction rope 2, the traction rope 2 can be shortened or lengthened through rotation of the wire winding cylinder 81, the traction rope 2 is wound on the annular groove 811, and then the effect of adjusting the relative distance between the traction frame 1 and the pulley 4 is achieved. In addition, the traction force is not provided by the heavy object, so that the problem that the heavy object falls due to the fact that the heavy object is dragged to the ground or the lasso is too short can be avoided, and the traction force is quite high. Because the weight used by the common traction device is usually a weight or a weight, the measuring range of the weight is fixed, and the traction force on the traction rope 2 cannot be accurately regulated, but after the skull of a patient is fixed with the traction frame 1, medical staff can continuously rotate the wire winding drum 81 to wind and unwind the traction rope 2, so that the traction force borne by the traction frame 1 is gradually increased or reduced, and the effect of accurately regulating the traction force is achieved. The side wall of the take-up cylinder 81, which is close to one side of the fixed cylinder 82, is provided with a plurality of first protrusions 814, the side wall of the fixed cylinder 82, which is close to one side of the take-up cylinder 81, is provided with first grooves 821 corresponding to the first protrusions 814 one by one, when the traction reaches a proper range, the first protrusions 814 and the first grooves 821 corresponding to the take-up cylinder 81 and the fixed cylinder 82 are mutually embedded, so that the position of the take-up cylinder 81 is fixed and is not rotated any more, and the fixing effect is good. The front end of the rotating shaft 83 is fixedly connected with the side wall of the supporting sleeve 7, and the rotating shaft 83 penetrates through the axle center of the fixed cylinder 82 to provide support for the fixed cylinder 82. The winding drum 81 is internally provided with a cavity 813 with a leftward opening, and the opening caliber of the cavity 813 is larger than that of the rotating shaft 83, so that the rotating shaft 83 penetrates out of the axis of the fixed drum 82 and then stretches into the cavity 813 of the winding drum 81. A limiting piece 831 is arranged at the tail end of the rotating shaft 83, and the caliber of the opening of the cavity 813 is smaller than that of the limiting piece 831, so that the winding drum 81 is prevented from moving to the side far away from the fixed drum 82, and the rotating shaft 83 is prevented from falling out of the cavity 813. The traction force adjusting mechanism 8 can adjust the length of the traction rope 2 by rotating the wire winding drum 81, can accurately adjust the traction force, and has the advantages of simple structure and convenient adjustment.

The limiting piece 831 is of an H-shaped structure with the diameters of two ends larger than the central diameter; the center of the limiting piece 831 is rotatably connected with a first circular disc 832; a second wafer 833 is movably connected to the rotating shaft 83 at the left side of the limiting member 831; the first wafer 832 and the second wafer 833 have the same size, and a plurality of springs 834 are arranged between the first wafer 832 and the second wafer 833; the first circular disc 832, the second circular disc 833 and the limiting piece 831 are all positioned in the cavity 813 of the take-up cylinder 81; the opening diameter of the cavity 813 is smaller than the diameter of the second wafer 833. The above structure can be seen that the limiting member 831 has an H-shaped structure with two ends having a diameter larger than the central diameter, and has other functions in addition to ensuring that the rotation shaft 83 does not come out of the take-up drum 81. The center of the limiting member 831 is rotatably connected with a first circular disc 832, and the left and right positions of the first circular disc 832 are defined by both ends of the limiting member 831, but can rotate at the center of the limiting member 831. The second wafer 833 on the rotating shaft 83 on the left side of the limiting member 831 can not only rotate but also move left and right on the rotating shaft 83. The first wafer 832 and the second wafer 833 have the same size, and a plurality of springs 834 are arranged between the first wafer 832 and the second wafer 833, so that the first wafer 832 can drive the second wafer 833 to rotate together through the plurality of springs 834, and the plurality of springs 834 can provide a leftward thrust for the second wafer 833. The first circular disc 832, the second circular disc 833 and the limiting piece 831 are all located in the cavity 813 of the take-up cylinder 81, and the opening caliber of the cavity 813 is smaller than the diameter of the second circular disc 833, so that the second circular disc 833 pushes the take-up cylinder 81 to approach the fixed cylinder 82 under the condition of leftward pushing force, and the trend that the take-up cylinder 81 approaches the fixed cylinder 82 is kept. When the traction force needs to be adjusted, the medical staff pulls the take-up cylinder 81 out of the fixed cylinder 82 by pulling the handle 812 rightwards, and then adjusts the traction force by rotating the take-up cylinder 81. When the traction force is adjusted to a proper range, the medical staff can make the first protrusions 814 on the winding drum 81 correspond to the first grooves 821 on the fixing drum 82 one by one, and slowly remove the pulling force of the handle 812, so that the spring 834 can push the winding drum 81 leftwards through the second wafer 833, the winding drum 81 is close to the fixing drum 82, and the first protrusions 814 are embedded with the first grooves 821 one by one to complete the fixing. The spring 834 is provided inside the take-up cylinder 81, so that the fixing effect between the take-up cylinder 81 and the fixing cylinder 82 can be improved.

Embodiment III:

see fig. 1-5. On the basis of the second embodiment, the supporting sleeve 7 is of a hollow structure; the support rod 6 is in sliding connection with the support sleeve 7. As can be seen from the above structure, the support sleeve 7 has a hollow structure, so that the support rod 6 can be easily inserted therein. The supporting rod 6 is slidably connected with the supporting sleeve 7, the supporting rod 6 can move up and down in the supporting sleeve 7, the height of the pulley 4 from the ground is further adjusted through the height adjustment of the supporting rod 6 extending out of the supporting sleeve 7, the height adjustment of the traction device is realized, the traction device is convenient to adapt to operating tables with different heights, and follow-up operation is facilitated.

The bottom of the pulley bracket 5 is movably connected with the top of the first supporting rod 6. According to the structure, the bottom of the pulley bracket 5 is movably connected with the top of the first supporting rod 6, so that the pulley bracket 5 can rotate left and right on the first supporting rod 6 to adjust the angle of the pulley 4, the position of the traction rope 2 is further adjusted, and the pulley bracket not only can be matched with the position of the take-up cylinder 81 of the traction force adjusting mechanism 8, but also is beneficial to medical staff to find a proper operation angle.

The side wall of the limiting piece 831, which is far away from the side of the fixed cylinder 82, is also provided with a buffer pad. According to the structure, the buffer pad is arranged on the side wall of the limiting piece 831 far away from the fixed barrel 82, so that the situation that the wire winding barrel 81 and the limiting piece 831 collide directly due to the fact that hands of medical staff are loosened quickly can be avoided, and the buffer effect is achieved.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes using the descriptions and drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the utility model.

Claims

1. A head traction device, characterized in that: comprises a traction frame (1), a traction rope (2), a tension meter (3), a pulley (4), a pulley bracket (5), a support rod (6), a support sleeve (7), a traction adjusting mechanism (8) and a base (9); a supporting sleeve (7) is arranged above the base (9); a traction force adjusting mechanism (8) is arranged on the side wall of the supporting sleeve (7), and the traction force adjusting mechanism (8) is used for adjusting traction force borne by the traction rope (2); a supporting rod (6) is inserted into the supporting sleeve (7); a pulley bracket (5) is arranged above the supporting rod (6); the pulley bracket (5) is movably connected with a pulley (4); the pulley (4) is matched with the traction rope (2) to enable two ends of the traction rope (2) to be connected with the traction adjusting mechanism (8) and the traction frame (1) respectively; the tension meter (3) is arranged on the traction rope (2).

2. A head traction device as claimed in claim 1, wherein: the traction force adjusting mechanism (8) comprises a wire winding cylinder (81), a fixed cylinder (82) and a rotating shaft (83); the winding cylinder (81) is provided with a vertical annular groove (811), and a handle (812) is arranged on the side wall close to one side of the fixed cylinder (82); a cavity (813) with a left opening is formed in the wire winding barrel (81); a plurality of first bulges (814) are arranged on the side wall of the wire winding cylinder (81) close to one side of the fixed cylinder (82); the side wall of the fixed cylinder (82) close to one side of the wire collecting cylinder (81) is provided with first grooves (821) which are in one-to-one correspondence with the first protrusions (814); the front end of the rotating shaft (83) is fixedly connected with the side wall of the supporting sleeve (7); the rotating shaft (83) penetrates through the axis of the fixed cylinder (82) and then extends into the cavity (813) of the take-up cylinder (81); a limiting piece (831) is arranged at the tail end of the rotating shaft (83); the caliber of the opening of the cavity (813) is smaller than the length of the limiting piece (831).

3. A head traction device as claimed in claim 2, wherein: the limiting piece (831) is of an H-shaped structure with the diameters of two ends larger than the diameter of the center; the center of the limiting piece (831) is rotatably connected with a first circular disc (832); a second wafer (833) is movably connected to the rotating shaft (83) at the left side of the limiting piece (831); the first wafer (832) and the second wafer (833) are consistent in size, and a plurality of springs (834) are arranged between the first wafer (832) and the second wafer (833); the first wafer (832), the second wafer (833) and the limiting piece (831) are all positioned in the cavity (813) of the take-up cylinder (81); the opening caliber of the cavity (813) is smaller than the diameter of the second wafer (833).

4. A head traction device according to claim 1 or 3, characterized in that: the supporting sleeve (7) is of a hollow structure; the support rod (6) is connected with the support sleeve (7) in a sliding way.

5. A head traction device according to claim 1 or 3, characterized in that: the bottom of the pulley bracket (5) is movably connected with the top of the first supporting rod (6).

6. A head traction device as claimed in claim 2, wherein: and a buffer cushion is further arranged on the side wall of the limiting piece (831) far away from one side of the fixed cylinder (82).