CN210612710U

CN210612710U - Lower limb radiotherapy positioning device

Info

Publication number: CN210612710U
Application number: CN201920925220.3U
Authority: CN
Inventors: 魏琳琳
Original assignee: Liaoning Cancer Hospital and Institute
Current assignee: Liaoning Cancer Hospital and Institute
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-05-26
Anticipated expiration: 2029-06-19

Abstract

The utility model provides a low limbs radiotherapy positioner, solves the unable problem of avoiding patient's healthy side low limbs to be irradiated that prior art exists, and positioning repeatability is poor, and the location precision is low, delays treatment time, increases treatment cost. Comprises a fixed bottom plate connected with the surface of a treatment bed, and is characterized in that: a supporting insertion pipe is detachably arranged on the insertion pipe mounting hole at one side of the rear end of the fixed bottom plate, and a plurality of lifting positioning insertion holes are formed in the side wall of the supporting insertion pipe; a healthy side lower limb support frame is arranged at the upper part of the support insertion tube, the healthy side lower limb support frame is movably inserted in the support insertion tube by utilizing a lifting support rod, and a horizontally arranged support supporting plate is arranged at the upper end of the lifting support rod; the front end of the fixed bottom plate is movably provided with a lower limb pedal at the affected side. Its reasonable in design, compact structure can fix respectively and suffer from the side low limbs and be good for the side low limbs, can realize the accurate location of low limbs radiotherapy position, and radiotherapy location repeatability is good, effectively guarantees to be good for the side low limbs not receive the radiation, and treatment efficiency is high.

Description

Lower limb radiotherapy positioning device

Technical Field

The utility model belongs to the technical field of the medical treatment assists utensil, concretely relates to can fix respectively and suffer from side low limbs and be good for side low limbs, can realize accurate location, the radiotherapy positioning repeatability of low limbs radiotherapy position good, effectively guarantee to be good for side low limbs and not receive the radiation, the low limbs radiotherapy positioner that treatment efficiency is high.

Background

At present, the radiotherapy positioning and fixing devices which are applied more are thermoplastic films and negative pressure air cushions, and the thermoplastic films have better positioning repeatability but are not suitable for positioning the lower limbs of patients. Meanwhile, once the negative pressure air cushion leaks air, the patient needs to be positioned repeatedly, the treatment time is delayed, and the treatment cost is increased. In addition, the thermoplastic film and the negative pressure air cushion are used for radiotherapy, so that the patient can not be well kept in the healthy lower limbs and cannot be irradiated. Regarding the positioning of the lower limbs on the side, there is no general and reliable related device for the time being, and the traditional way is to use a nailed "L" shaped wooden frame, one end of which is placed on the treatment bed, and the other end is upright, and the upright end is provided with a board shoe. However, in the practical use process of the L-shaped wooden frame, most patients cannot smoothly penetrate the board shoes due to the limitation of the wooden frame. In addition, the fixing mode of the health-care lower limb lifting is different, the repeatability of the adopted foam cushion or the mode that the patient holds the health-care lower limb with both hands is poor, and the positioning accuracy and efficiency of treatment are reduced. Therefore, the improvement of the positioning device for the lower limb radiotherapy in the prior art is needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to above-mentioned problem, provide one kind can fix respectively and suffer from side low limbs and be good for side low limbs, can realize accurate location, the radiotherapy location repeatability of low limbs radiotherapy position good, effectively guarantee to be good for side low limbs and not receive the radiation, the low limbs radiotherapy positioner that treatment efficiency is high.

The utility model adopts the technical proposal that: this low limbs radiotherapy positioner includes the PMKD who links to each other with the treatment couch surface, its characterized in that: the two sides of the fixed bottom plate, which are close to the rear end of a patient, are respectively provided with an intubation mounting hole, wherein a support intubation which is vertically and upwards arranged is detachably arranged on the intubation mounting hole on one side, and the side wall of the support intubation is provided with a plurality of lifting positioning jacks which are arranged along the vertical direction at equal intervals; the upper part of the supporting insertion pipe is provided with a healthy side lower limb supporting frame which is composed of a lifting support rod, the upper end of the lifting support rod is provided with a horizontally arranged supporting plate, and the lower end of the lifting support rod is provided with a positioning clamp hole; the side-health lower limb support frame is movably inserted in the support cannula by utilizing the lifting support rod, and is positioned and clamped by a positioning screw which simultaneously passes through the lifting positioning jack and the positioning clamp hole; the front end of the fixed bottom plate far away from the patient is movably provided with a lower limb pedal at the affected side.

The lower limb pedal on the affected side is composed of a pedal main body, the pedal main body is transversely arranged along the direction vertical to the fixed base plate, and a front side fixed plate and a rear side fixed plate are respectively and fixedly arranged on two sides of the pedal main body and the fixed base plate; a transmission lead screw is arranged between the front side fixing plate and the rear side fixing plate along the horizontal longitudinal direction, two ends of the transmission lead screw are respectively connected with the front side fixing plate and the rear side fixing plate in a rotating way through rotating bearings, and a rotating hand wheel is arranged at the front end of the transmission lead screw; the middle part of the pedal main body of the lower limb pedal on the affected side is connected with the transmission screw rod in a matching way through a screw rod nut. The transmission lead screw is driven to rotate by utilizing the rotating hand wheel, and then the lead screw nut in threaded connection with the transmission lead screw drives the lower limb pedal at the affected side to reciprocate along the axis of the transmission lead screw, so that the device is suitable for the head and foot distances of patients with different heights.

The left end and the right end of the pedal main body facing one side of a patient are respectively provided with a pedal protruding part, and a sole groove is formed in the pedal protruding part. The device is favorable for positioning the feet of the affected lower limbs of the patient, ensures the repeatability of positioning and improves the use comfort of the device.

Guide rod sliding holes are respectively formed in two sides of a screw nut in the middle of the pedal main body, correspondingly, guide rods are respectively arranged on two sides of a transmission screw on the front side fixing plate and the rear side fixing plate, and two ends of each guide rod are respectively fixedly connected with the front side fixing plate and the rear side fixing plate; the pedal main body is connected with the guide rod in a sliding way through the guide rod sliding hole. The device can effectively guide the movement of the lower limb pedal on the affected side along the axis of the transmission screw rod, and improves the use stability of the device.

The lower end of the supporting insertion pipe is connected with an insertion pipe mounting hole in the fixed bottom plate through an insertion pipe locking mechanism, the insertion pipe locking mechanism comprises a fixed stud, the lower end of the fixed stud is in threaded connection with an elastic sleeve in a hole formed in the insertion pipe mounting hole, and the upper end of the fixed stud is inserted into a blind hole in the lower end of the supporting insertion pipe; meanwhile, the support inserting pipe and the fixing stud are connected together in a locking mode through the locking wheel inserting hole in the side portion of the lower end of the support inserting pipe and the eccentric locking rotating wheel inserted into the end portion of the blind hole. The support intubation tube is convenient to disassemble and assemble, and medical workers can flexibly adjust the position of the support intubation tube according to the left and right directions of the lower limbs of the healthy side of the patient.

The middle part of the eccentric locking runner is provided with a locking clamping groove which is used for being matched and clamped with a stud clamping joint at the upper end of the fixed stud, one side of the locking clamping groove is provided with a dismounting opening which is convenient for mounting the locking runner, and the other side of the locking clamping groove is provided with a cross-shaped rotating groove. The eccentric locking runner in the locking wheel insertion hole is sleeved on the stud clamping joint of the fixing stud through the dismounting notch, and the cross-shaped rotating groove is utilized to drive the eccentric locking runner to rotate, so that the locking clamping groove of the eccentric locking runner is clamped on the fixing stud arranged in the insertion pipe mounting hole.

The utility model has the advantages that: because the utility model adopts the fixed bottom plate connected with the bed surface of the treatment bed, the two sides of the rear end of the fixed bottom plate are respectively provided with the intubation mounting holes, the intubation mounting hole on one side is detachably provided with the support intubation, and the side wall of the support intubation is provided with a plurality of lifting positioning jacks which are arranged equidistantly; a healthy side lower limb support frame is arranged at the upper part of the support insertion tube and consists of a lifting support rod, a support supporting plate horizontally arranged is arranged at the upper end of the lifting support rod, and a positioning clamp hole is arranged at the lower end of the lifting support rod; the healthy-side lower limb support frame is movably inserted in the support cannula by utilizing the lifting support rod, and is positioned and clamped by a positioning screw penetrating through the lifting positioning insertion hole and the positioning clamp hole, and the front end of the fixed bottom plate is movably provided with a pedal structure form of the affected-side lower limb, so that the healthy-side lower limb support frame has reasonable design and compact structure, and the healthy-side lower limb of the patient can be lifted by the healthy-side lower limb support frame with adjustable height; the lower limb of the patient on the affected side is placed on the fixing bottom plate, and the foot of the lower limb of the affected side is placed on the pedal of the lower limb of the affected side, so as to fix the angle of the lower limb of the affected side. The device effectively ensures that the lower limbs on the healthy side are not irradiated while realizing the normal irradiation of the lower limbs on the affected side; the positioning accuracy of the radiotherapy body position of the lower limbs is ensured, the positioning repeatability of the radiotherapy is good, and the treatment efficiency is high.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a view in the direction a of fig. 1.

Fig. 3 is a schematic view of the pedal of the affected lower limb in fig. 1.

Fig. 4 is a schematic structural view of the side-exercising lower limb support frame in fig. 1.

Fig. 5 is a schematic structural view of the cannula locking mechanism between the lower end of the support cannula and the cannula mounting hole of the fixed base plate in fig. 1.

Fig. 6 is a view from direction B of fig. 5.

Fig. 7 is a sectional view showing an inner structure of the lower end of the support cannula of fig. 1.

The sequence numbers in the figures illustrate: the device comprises a fixed bottom plate 1, an intubation mounting hole 2, a support intubation 3, a lifting positioning jack 4, a health-care side lower limb support frame 5, a positioning screw 6, a patient side lower limb pedal 7, a front side fixed plate 8, a rear side fixed plate 9, a transmission screw rod 10, a guide rod 11, a rotating hand wheel 12, a pedal plate main body 13, a pedal boss 14, a sole groove 15, a screw rod nut 16, a guide rod slide hole 17, a lifting support rod 18, a support supporting plate 19, a positioning clamp hole 20, a fixing stud 21, an in-hole elastic sleeve 22, an eccentric locking rotating wheel 23, a cross rotating groove 24, a disassembly opening 25, a locking clamp groove 26, a stud clamp joint 27 and a locking wheel inserting hole 28.

Detailed Description

The specific structure of the present invention is described in detail with reference to fig. 1 to 7. The lower limb radiotherapy positioning device comprises a fixed bottom plate 1 connected with the bed surface of a treatment bed, wherein two sides of the fixed bottom plate 1, which are close to the rear end of a patient, are respectively provided with an intubation tube mounting hole 2 for mounting a support intubation tube 3; the intubation tube mounting hole 2 on one side is detachably provided with a supporting intubation tube 3 which is vertically and upwards arranged. The side wall of the supporting insertion pipe 3 is provided with a plurality of lifting positioning insertion holes 4 which are arranged along the vertical direction at equal intervals, and the upper part of the supporting insertion pipe 3 is movably provided with a healthy side lower limb supporting frame 5. The lower limb support frame 5 for exercising side is composed of a lifting support rod 18, a support supporting plate 19 which is horizontally arranged is arranged at the upper end of the lifting support rod 18, and a positioning clamp hole 20 is arranged at the lower end of the lifting support rod 18. The healthy-side lower limb support frame 5 is movably inserted in the support insertion tube 3 by utilizing the lifting support rod 18, and the height position of the healthy-side lower limb support frame 5 is positioned and clamped by utilizing the positioning screw 6 which simultaneously passes through the lifting positioning insertion hole 4 of the support insertion tube 3 and the positioning clamp hole 20 of the lifting support rod 18 of the healthy-side lower limb support frame 5.

The lower end of the supporting insertion pipe 3 is connected with the insertion pipe mounting holes 2 on the corresponding side on the fixed bottom plate 1 through an insertion pipe locking mechanism. The intubation tube locking mechanism comprises a fixed stud 21, and the lower end of the fixed stud 21 is in threaded connection with an in-hole elastic sleeve 22 arranged in the intubation tube mounting hole 2; and the upper end of the fixing stud 21 is inserted into a blind hole provided in the lower end of the support insert 3. Meanwhile, the support inserting pipe 3 and the fixing stud 21 are locked and connected together through the locking wheel inserting hole 28 at the side part of the lower end of the support inserting pipe 3 and the eccentric locking rotating wheel 23 inserted into the upper end part of the blind hole. A locking clamping groove 26 which is matched and clamped with a screw column clamping joint 27 at the upper end of the fixed screw column 21 is arranged in the middle of the eccentric locking rotating wheel 23; one side of the locking clamping groove 26 is provided with a disassembly and assembly opening 25 convenient for installation of the locking runner, and the other side of the locking clamping groove 26 is provided with a cross-shaped rotating groove 24; the eccentric locking runner 23 inserted into the locking wheel insertion hole 28 is sleeved on the stud clamping joint 27 of the fixing stud 21 through the disassembly and assembly notch 25, and the cross-shaped rotation groove 24 is utilized to drive the eccentric locking runner 23 to rotate, so that the locking clamping groove 26 of the eccentric locking runner 23 is clamped on the fixing stud 21 arranged in the insertion tube mounting hole 2. Thereby conveniently support the dismouting of intubate 3, the medical personnel of being convenient for adjust the position that supports intubate 3 in a flexible way according to the patient side of health lower limbs, right direction.

The front end of the fixed bottom plate 1 far away from the patient is movably provided with a lower limb pedal 7 at the affected side. The lower limb pedal 7 on the affected side is composed of a pedal main body 13, the pedal main body 13 is transversely arranged along the direction perpendicular to the fixed base plate 1, and a front side fixing plate 8 and a rear side fixing plate 9 are respectively fixedly arranged on two sides of the pedal main body 13 and the fixed base plate 1. A transmission screw 10 which is arranged horizontally and longitudinally is arranged between the front side fixing plate 8 and the rear side fixing plate 9, two ends of the transmission screw 10 are respectively connected with the front side fixing plate 8 and the rear side fixing plate 9 through rotating bearings in a rotating mode, and a rotating hand wheel 12 is arranged at the front end of the transmission screw 10. And, the both sides of the drive screw 10 on front fixed plate 8 and rear fixed plate 9 are provided with guide bar 11 respectively, and the both ends of guide bar 11 are fixed continuous with front fixed plate 8 and rear fixed plate 9 respectively.

The middle part of the pedal body 13 of the lower limb pedal 7 on the affected side is provided with a screw nut 16, and the pedal body 13 on the two sides of the screw nut 16 on the middle part is respectively provided with a guide rod sliding hole 17. The pedal main body 13 is connected with the transmission screw rod 10 in a matching way through a screw rod nut 16, and the pedal main body 13 is also connected with the two guide rods 11 in a sliding way through two guide rod sliding holes 17; further effectively guiding the movement of the lower limb pedal 7 on the affected side along the axis of the transmission screw 10, and improving the use stability of the device; the hand wheel 12 is rotated to drive the transmission screw 10 to rotate, and the screw nut 16 in threaded connection with the transmission screw 10 drives the lower limb pedal 7 on the affected side to reciprocate along the axis of the transmission screw 10, so that the head and foot distances of patients with different heights are adapted. In order to facilitate the positioning of the feet of the affected lower limbs of the patient, the left end and the right end of the pedal main body 13, which face one side of the patient, are respectively provided with a pedal convex part 14; both the two pedal bosses 14 are provided with sole grooves 15; so as to ensure the repeatability of radiotherapy positioning and improve the use comfort of the device.

When the lower limb radiotherapy positioning device is used, firstly, a patient lies on a treatment bed, and the positioning device is fixed below the hip of the patient. Then, the support cannula 3 is fixed to the cannula mounting hole 2 of the corresponding side (left side or right side) of the fixed base plate 1 according to the left and right directions (left leg or right leg) of the patient's lower limb with good side. Subsequently, according to the pathological changes of the patient, the far end of the healthy lower limb is placed on the supporting splint 19 of the healthy lower limb supporting frame 5 to lift the healthy lower limb; then, the height of the healthy-side lower limb support frame 5 is adjusted according to the length of the near end of the healthy-side lower limb of the patient, and the height position of the healthy-side lower limb support frame 5 is positioned and clamped by using a positioning screw 6 which passes through the lifting positioning jack 4 and the positioning clamp hole 20; so as to ensure that the far end of the lower limb of the patient on the healthy side is parallel to the bed plate and the height of the positioning screw 6 is recorded on the radiotherapy book. A rotating hand wheel 12 is adjusted to drive a transmission screw rod 10 to rotate, so that the foot pedal 7 of the lower limb of the affected side is driven to move, the head and foot distances of patients with different heights are further adapted, and meanwhile, the foot of the lower limb of the affected side of the patient is placed in the sole groove 15 of the corresponding side of the foot pedal main body 13; so as to ensure that the rotation angles of the lower limbs at the affected side are consistent during each treatment. Finally, the laser line (CT self-carrying) position is marked on the lower limb of the affected side, and subsequent operations such as positioning, radiotherapy and the like are carried out.

Claims

1. The utility model provides a low limbs radiotherapy positioner, includes PMKD (1) continuous with treatment bed surface, its characterized in that: the two sides of the fixed bottom plate (1) close to the rear end of a patient are respectively provided with an intubation tube mounting hole (2), wherein the intubation tube mounting hole (2) on one side is detachably provided with a support intubation tube (3) which is vertically and upwardly arranged, and the side wall of the support intubation tube (3) is provided with a plurality of lifting positioning jacks (4) which are arranged along the vertical direction at equal intervals; a healthy side lower limb support frame (5) is arranged at the upper part of the support insertion pipe (3), the healthy side lower limb support frame (5) is composed of a lifting support rod (18), a support supporting plate (19) which is horizontally arranged is arranged at the upper end of the lifting support rod (18), and a positioning clamp hole (20) is arranged at the lower end of the lifting support rod (18); the lower limb support frame (5) for exercising side is movably inserted in the support insertion tube (3) by utilizing the lifting support rod (18), and is positioned and clamped by the positioning screw (6) which simultaneously passes through the lifting positioning insertion hole (4) and the positioning clamp hole (20); the front end of the fixed bottom plate (1) far away from the patient is movably provided with a lower limb pedal (7) at the affected side.

2. The positioning device for radiotherapy of lower limbs of claim 1, wherein: the lower limb pedal (7) on the affected side is composed of a pedal main body (13), the pedal main body (13) is transversely arranged along the direction vertical to the fixed base plate (1), and a front side fixed plate (8) and a rear side fixed plate (9) are respectively and fixedly arranged on two sides of the pedal main body (13) and the fixed base plate (1); a transmission lead screw (10) which is horizontally and longitudinally arranged is arranged between the front side fixing plate (8) and the rear side fixing plate (9), two ends of the transmission lead screw (10) are respectively and rotatably connected with the front side fixing plate (8) and the rear side fixing plate (9) through rotating bearings, and a rotating hand wheel (12) is arranged at the front end of the transmission lead screw (10); the middle part of a pedal body (13) of the lower limb pedal (7) on the affected side is connected with the transmission screw rod (10) in a matching way through a screw rod nut (16).

3. The positioning device for radiotherapy of lower limbs of claim 2, wherein: the left end and the right end of the pedal main body (13) facing one side of a patient are respectively provided with a pedal protruding part (14), and the pedal protruding part (14) is provided with a sole groove (15).

4. The positioning device for radiotherapy of lower limbs of claim 2, wherein: guide rod sliding holes (17) are respectively formed in two sides of a screw nut (16) in the middle of the pedal main body (13), correspondingly, guide rods (11) are respectively arranged on two sides of a transmission screw (10) on the front side fixing plate (8) and the rear side fixing plate (9), and two ends of each guide rod (11) are respectively fixedly connected with the front side fixing plate (8) and the rear side fixing plate (9); the pedal plate main body (13) is connected with the guide rod (11) in a sliding mode through a guide rod sliding hole (17).

5. The positioning device for radiotherapy of lower limbs of claim 1, wherein: the lower end of the supporting insertion pipe (3) is connected with an insertion pipe mounting hole (2) in the fixed base plate (1) through an insertion pipe locking mechanism, the insertion pipe locking mechanism comprises a fixed stud (21), the lower end of the fixed stud (21) is in threaded connection with an in-hole elastic sleeve (22) arranged in the insertion pipe mounting hole (2), and the upper end of the fixed stud (21) is inserted into a blind hole in the lower end of the supporting insertion pipe (3); meanwhile, the support inserting pipe (3) and the fixing stud (21) are connected together in a locking mode through a locking wheel inserting hole (28) in the side portion of the lower end of the support inserting pipe (3) and an eccentric locking rotating wheel (23) inserted into the end portion of the blind hole.

6. The positioning device for radiotherapy of lower limbs of claim 5, wherein: the middle part of the eccentric locking runner (23) is provided with a locking clamping groove (26) which is matched and clamped with a screw stud clamping joint (27) at the upper end of the fixed screw stud (21), one side of the locking clamping groove (26) is provided with a disassembly and assembly opening (25) which is convenient for installing the locking runner, and the other side of the locking clamping groove (26) is provided with a cross-shaped rotating groove (24).