Orthopedic traction device

Abstract

The invention discloses an orthopedic traction device, and belongs to the technical field of medical instruments, the orthopedic traction device comprises a base and a support fixedly arranged on the base, the support comprises a vertical rod and a cross rod fixedly connected to the top end of the vertical rod, and a seat is fixedly mounted on one side of the vertical rod on the base; a first sliding block and a second sliding block located below the first sliding block are slidably connected to the vertical rod, a spring is fixedly connected between the first sliding block and the second sliding block, a screw is rotationally connected to the base, one end of the screw is in threaded connection with the second sliding block, and a traction rope is fixedly connected to the first sliding block. The end, away from the first sliding block, of the traction rope bypasses a roller fixedly installed on the transverse rod and extends to the position above the seat, and the end, close to the seat, of the traction rope is fixedly connected with a fixing sleeve. The traction force is increased through the moving distance of the first sliding block and the deformation length of the spring, the adjustment precision of the traction force is improved, and through the arrangement of the spring, the traction force can be buffered during traction, and the safety is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of medical devices, and particularly relates to an orthopedic traction device. BACKGROUND

[0002] Orthopedic traction technology is to apply force and counterforce to resist the tension and contraction of soft tissues, so that fractures or dislocations can be reduced and deformities can be prevented and corrected. Traction technology is often used for limbs or spines, and a traction frame is needed to realize the traction technology.

[0003] In the prior art, a kind of orthopedic nursing traction support device is disclosed in CN109498238B, the adjustment precision of traction force is poor by adjusting the traction force through the weight, and when the patient is in pain or muscle tear due to excessive traction force, only the weight can be lifted or the head cover can be removed for emergency disengagement, both of which can easily cause the weight to fall and pose a safety hazard.

[0004] Therefore, an orthopedic traction device needs to be proposed to solve the above problems. SUMMARY

[0005] Therefore, the purpose of the present application is to provide an orthopedic traction device to solve the problems of poor adjustment precision of traction force and safety hazards in the prior art when traction is applied to the cervical spine.

[0006] To achieve the above purpose, the present application provides the following technical scheme:

[0007] The present application provides an orthopedic traction device, which comprises a base and a support fixedly arranged on the base, the support comprises a vertical rod and a horizontal rod fixedly connected to the top end of the vertical rod, a seat is fixedly installed on the base on one side of the vertical rod, a first sliding block and a second sliding block located below the first sliding block are slidingly connected to the vertical rod, a spring is fixedly connected between the first sliding block and the second sliding block, a screw rod is rotatably connected to the base, one end of the screw rod is threadedly connected to the second sliding block, and rotating the screw rod can make the second sliding block slide along the vertical rod, a traction rope is fixedly connected to the first sliding block, the traction rope extends to above the seat through a fixedly installed roller on the horizontal rod away from the first sliding block, and a fixed sleeve is fixedly connected to the end of the traction rope close to the seat.

[0008] Further, the first sliding block is rotationally connected with a rotating shaft, one end of the traction rope is wound around the rotating shaft and fixedly connected with the rotating shaft, the rotating shaft is fixedly connected with a worm gear, the first sliding block is rotationally connected with a worm that is engaged with the worm gear, and rotating the worm can make the worm gear rotate to make the rotating shaft rotate to adjust the length of the traction rope extending out of the rotating shaft.

[0009] Further, the first sliding block is rotationally connected with a rotating shaft, one end of the traction rope is wound around the rotating shaft and fixedly connected with the rotating shaft, the rotating shaft is fixedly connected with a worm gear, the first sliding block is rotationally connected with a worm that is engaged with the worm gear, and rotating the worm can make the worm gear rotate to make the rotating shaft rotate to adjust the length of the traction rope extending out of the rotating shaft.

[0010] Further, the vertical rod is fixedly connected with a baffle above the first sliding block, and the baffle is fixedly connected with a buffer pad near the first sliding block, and the baffle and the buffer pad are both provided with through holes for the traction rope to pass through.

[0011] Further, the base is provided with a cavity, one end of the screw rod extends into the cavity and is fixedly connected with a first sprocket, the base is rotationally connected with an operating rod, the operating rod is arranged near the seat, one end of the operating rod extends into the cavity and is fixedly connected with a second sprocket, and the first sprocket and the second sprocket are in transmission through a chain.

[0012] Further, the first sliding block is provided with a second sliding groove, the second sliding groove is slidably connected with a supporting block, and the worm is rotationally connected with the supporting block, and sliding the supporting block can make the worm engage with or disengage from the worm gear.

[0013] Further, the first sliding block is provided with a second sliding groove, the second sliding groove is slidably connected with a supporting block, and the worm is rotationally connected with the supporting block, and sliding the supporting block can make the worm engage with or disengage from the worm gear.

[0014] The beneficial effects of the present application are:

[0015] The present application can increase the traction force by rotating the screw rod to drive the second sliding block to move downward and by the moving distance of the first sliding block and the deformation length of the spring, improve the adjustment accuracy of the traction force, and through the setting of the spring, can provide buffer for the traction force during traction, improve the safety, and set the vertical rod on one side of the seat, so that the patient can adjust according to the self traction feeling, reduce the workload of the doctor, and improve the safety of the patient when adjusting the traction force.

[0016] Additional advantages, objects, and features of the application will be apparent to those skilled in the art upon examination of the following detailed description, and it is intended that any such advantages, objects, and features of the present application be within the scope of the claimed application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to make the objectives, technical solutions and beneficial effects of the present application clearer, the present application is described below with the help of the accompanying drawings:

[0018] Fig. 1 It is a schematic diagram of the overall structure of the orthopedic traction device of the embodiment of the present application.

[0019] Fig. 2 It is a front view of the overall structure of the orthopedic traction device of the embodiment of the present application.

[0020] Fig. 3 It is a partial structure sectional view of the orthopedic traction device of the embodiment of the present application.

[0021] In the drawings, the following signs are marked: base 1, cavity 101, first sprocket 102, operating rod 103, second sprocket 104, chain 105, support 2, vertical rod 201, cross rod 202, roller 203, baffle 204, buffer pad 205, seat 3, first sliding block 4, rotating shaft 401, worm gear 402, worm 403, second sliding groove 404, supporting block 405, threaded rod 406, second sliding block 5, first sliding groove 501, sliding rod 502, connecting plate 503, notch 504, sliding hole 505, clamping rod 506, fixing plate 507, elastic member 508, spring 6, screw rod 7, traction rope 8, fixing sleeve 9. DETAILED DESCRIPTION

[0022] As shown in Figs. 1-3 The present application provides an orthopedic traction device, which comprises a base 1 and a support 2 fixedly arranged on the base 1, the support 2 comprises a vertical rod 201 and a cross rod 202 fixedly connected to the vertical rod 201, a seat 3 is fixedly installed on the base 1 at one side of the vertical rod 201, a first sliding block 4 and a second sliding block 5 located below the first sliding block 4 are slidingly connected to the vertical rod 201, a spring 6 is fixedly connected between the first sliding block 4 and the second sliding block 5, a screw rod 7 is rotatably connected to the base 1, one end of the screw rod 7 is threadedly connected to the second sliding block 5, rotating the screw rod 7 can make the second sliding block 5 slide along the vertical rod 201, a traction rope 8 is fixedly connected to the first sliding block 4, the traction rope 8 extends to above the seat 3 by passing around a roller 203 fixedly installed on the cross rod 202 at the end away from the first sliding block 4, and a fixing sleeve 9 is fixedly connected to the traction rope 8 at the end close to the seat 3.

[0023] In the scheme, the patient sits on the seat 3, and the fixing sleeve 9 is tied on the head, the second sliding block 5 is driven to move down by rotating the screw rod 7, the first sliding block 4 is driven to move down by the spring 6, and the traction rope 8 is driven to pull the fixing sleeve 9 to realize the traction of the cervical vertebra of the patient.

[0024] The scheme drives the second sliding block 5 to move down by rotating the screw rod 7, and the traction force is increased by the moving distance of the first sliding block 4 and the deformation length of the spring 6, so that the adjustment accuracy of the traction force is improved, and the spring 6 is arranged to provide buffering for the traction force during traction, so that the safety is improved; and the vertical rod 201 is arranged on one side of the seat 3, so that the patient can adjust according to the self-traction feeling, the workload of the doctor is reduced, and the safety of the patient during adjustment of the traction force is improved.

[0025] In an embodiment of the present application, the first sliding groove 501 is arranged on the side close to the first sliding block 4 of the second sliding block 5, the sliding rod 502 is slidably connected in the first sliding groove 501, the connecting plate 503 is fixedly connected to the end of the sliding rod 502 extending out of the first sliding groove 501, the spring 6 is fixedly connected between the first sliding block 4 and the connecting plate 503, the notch 504 is arranged on the side close to the seat 3 of the sliding rod 502, the notch 504 is triangularly arranged, and the bottom edge of the notch 504 is horizontally arranged, the sliding hole 505 communicating with the first sliding groove 501 is arranged on the side close to the seat 3 of the second sliding block 5, the clamping rod 506 is slidably connected in the sliding hole 505, the clamping rod 506 is matched with the notch 504 at the end close to the notch 504, the clamping rod 506 and the notch 504 are clamped to limit the longitudinal displacement of the sliding rod 502, the fixed plate 507 is fixedly connected to the end of the clamping rod 506 extending out of the sliding hole 505, the elastic member 508 is fixedly connected between the fixed plate 507 and the second sliding block 5, and the elastic member 508 is arranged as a compression spring.

[0026] In the scheme, when the traction force is too large and exceeds the limit that the patient can bear, the patient can pull the fixed plate 507 to make the clamping rod 506 disengage from the notch 504, so that the connecting plate 503 and the sliding rod 502 are driven to disengage from the second sliding block 5 under the action of the spring 6, at this time, the patient only bears the gravity of the first sliding block 4, the spring 6, the connecting plate 503 and the sliding rod 502, so that the traction force is reduced, the patient can operate independently and quickly, the pain of the patient is avoided to be aggravated during the waiting for the doctor to operate, the damage degree of the patient is reduced, and the safety hidden danger caused by the falling of the weight in the prior art by taking off the head sleeve or lifting the weight is avoided; after the patient takes off the fixing sleeve 9, the sliding rod 502 is inserted into the first sliding groove 501 to press the inclined edge of the clamping rod 506, until the clamping rod 506 is clamped with the notch 504 to complete the fixation of the connecting plate 503 and the second sliding block 5.

[0027] In one embodiment of the present application, the first sliding block 4 is rotatably connected with a rotating shaft 401, one end of the traction rope 8 is wound around the rotating shaft 401 and fixedly connected with the rotating shaft 401, the rotating shaft 401 is fixedly connected with a worm gear 402, the first sliding block 4 is rotatably connected with a worm shaft 403 engaged with the worm gear 402, and rotating the worm shaft 403 can make the worm gear 402 rotate to rotate the rotating shaft 401 to adjust the length of the traction rope 8 extending out of the rotating shaft 401.

[0028] In the present scheme, the length of the traction rope 8 extending out of the rotating shaft 401 is adjusted by rotating the worm shaft 403 to adapt to patients of different heights, and the patient can be pulled by adjusting only the length of the traction rope 8 when the patient is sitting or lying by adjusting the backrest of the seat 3. For example, when lying down, the traction rope 8 needs to be lengthened, and the traction rope 8 is wound around the roller provided on the backrest of the seat 3, so that the moving direction of the fixed sleeve 9 is along the direction of the backrest of the seat 3.

[0029] In the present scheme, the worm gear 402 and the worm shaft 403 cooperate, and due to the self-locking function of the worm gear 402 and the worm shaft 403, the traction rope 8 fixedly wound on the rotating shaft 401 will not be lengthened due to the traction process, and by rotating the worm shaft 403, the length of the traction rope 8 can also be changed to adjust the traction force, thereby increasing the adjustment mode of the traction force and improving the adjustment accuracy of the traction force.

[0030] In one embodiment of the present application, the vertical rod 201 is fixedly connected with a baffle 204 above the first sliding block 4, the baffle 204 is fixedly connected with a buffer pad 205 near the side of the first sliding block 4, and the baffle 204 and the buffer pad 205 are both provided with through holes for the traction rope to pass through.

[0031] In the present scheme, when the patient pulls the fixed plate 507 to make the spring 6 disengage from the second sliding block 5, the spring 6 can play a first-stage buffering role to avoid the patient falling down due to too fast change of the traction force caused by too fast upward movement of the first sliding block 4, etc. When the first sliding block 4 moves upward, the upward movement of the first sliding block 4 is limited by the baffle 204, and the baffle 204 is buffered by the buffer pad 205 when the first sliding block 4 hits the baffle 204, thereby reducing the impact noise and improving the safety.

[0032] In one embodiment of the present application, the base 1 is provided with a cavity 101, one end of the screw rod 7 extends into the cavity 101 and is fixedly connected with a first sprocket 102, the base 1 is rotatably connected with an operating rod 103, the operating rod 103 is arranged near the seat 3, one end of the operating rod 103 extends into the cavity 101 and is fixedly connected with a second sprocket 104, and the first sprocket 102 and the second sprocket 104 are driven by a chain 105.

[0033] In the scheme, the patient can adjust the traction force by rotating the operating rod 103 to drive the screw rod 7 to rotate through the chain wheel and the chain, so that the patient can adjust the traction force according to the traction feeling, meet the self-adapting ability of the patient, and improve the convenience of self-adjustment of the patient.

[0034] In an embodiment of the present application, the first sliding block 4 is provided with a second sliding groove 404, and a support block 405 is slidably connected in the second sliding groove 404, and the worm 403 is rotationally connected to the support block 405, and sliding the support block 405 can make the worm 403 engage or disengage with the worm gear 302.

[0035] In the scheme, when the traction force is too large and exceeds the bearing limit of the patient, the support block 405 is slid to make the worm 403 disengage with the worm gear 302, and the rotation of the shaft 401 is driven by the force of the fixing sleeve 9 on the traction rope 8 to lengthen the traction rope 8 to reduce the traction force, thereby reducing the safety hazard through the two ways of pulling the fixed plate 507 and sliding the support block 405.

[0036] In an embodiment of the present application, the first sliding block 4 is provided with a second sliding groove 404, and a support block 405 is slidably connected in the second sliding groove 404, and the worm 403 is rotationally connected to the support block 405, and sliding the support block 405 can make the worm 403 engage or disengage with the worm gear 302.

[0037] In the scheme, the support block 405 is slid along the second sliding groove 404 by rotating the threaded rod 406 to drive the support block 405 to engage or disengage with the worm gear 302, which ensures the stability of the support block 405 moving to the preset position and facilitates the self-operation of the patient.

[0038] Finally, it should be explained that the above preferred embodiments are only used to illustrate the technical solutions of the present application and are not limited, although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application.

Claims

1. An orthopedic traction device comprising a base and a support fixedly arranged on the base, characterized in that: The support includes a vertical rod and a cross rod fixedly connected to the top end of the vertical rod, a seat is fixedly installed on the base on one side of the vertical rod, a first sliding block and a second sliding block below the first sliding block are slidingly connected to the vertical rod, a spring is fixedly connected between the first sliding block and the second sliding block, a screw rod is rotatably connected to the base, one end of the screw rod is threadedly connected to the second sliding block, and rotating the screw rod can make the second sliding block slide along the vertical rod, a traction rope is fixedly connected to the first sliding block, and the traction rope extends to above the seat through a roller fixedly installed on the cross rod away from the first sliding block, and the traction rope is fixedly connected to a fixing sleeve close to the seat.

2. The orthopedic traction device of claim 1, wherein: A first sliding groove is arranged on the side of the second sliding block close to the first sliding block, a sliding rod is slidingly connected in the first sliding groove, a connecting plate is fixedly connected to the end of the sliding rod extending out of the first sliding groove, the spring is fixedly connected between the first sliding block and the connecting plate, a notch is arranged on the side of the sliding rod close to the seat, a sliding hole communicating with the first sliding groove is arranged on the side of the second sliding block close to the seat, a clamping rod is slidingly connected in the sliding hole, the clamping rod is matched with the notch close to the end of the clamping rod away from the notch, the clamping rod and the notch are clamped to limit the longitudinal displacement of the sliding rod, and a fixing plate is fixedly connected to the end of the clamping rod extending out of the sliding hole, and an elastic element is fixedly connected between the fixing plate and the second sliding block.

3. The orthopedic traction device of claim 2, wherein: A rotating shaft is rotatably connected to the first sliding block, one end of the traction rope is wound around the rotating shaft and fixedly connected to the rotating shaft, a worm wheel is fixedly connected to the rotating shaft, and a worm is rotatably connected to the first sliding block and engaged with the worm wheel, rotating the worm can make the worm wheel rotate to make the rotating shaft rotate to adjust the length of the traction rope extending out of the rotating shaft.

4. The orthopedic traction device of claim 3, wherein: A baffle is fixedly connected to the vertical rod above the first sliding block, and a buffer pad is fixedly connected to the side of the baffle close to the first sliding block, and through holes for the traction rope to pass through are arranged on the baffle and the buffer pad.

5. The orthopedic traction device of claim 4, wherein: A cavity is arranged in the base, a first sprocket is fixedly connected to one end of the screw rod extending into the cavity, an operating rod is rotatably connected to the base, the operating rod is arranged close to the seat, a second sprocket is fixedly connected to one end of the operating rod extending into the cavity, and the first sprocket and the second sprocket are driven by a chain.

6. The orthopedic traction device of claim 5, wherein: A second sliding groove is arranged on the first sliding block, a supporting block is slidingly connected in the second sliding groove, and the worm is rotatably connected to the supporting block, sliding the supporting block can make the worm engage with or disengage from the worm wheel.

7. The orthopedic traction device of claim 6, wherein: A threaded rod is threadedly connected to the bottom end of the first sliding block, and one end of the threaded rod extends into the second sliding groove and is rotatably connected to the supporting block.

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