CN114344055B - Lithotomy position operation table - Google Patents
Lithotomy position operation table Download PDFInfo
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- CN114344055B CN114344055B CN202210024477.8A CN202210024477A CN114344055B CN 114344055 B CN114344055 B CN 114344055B CN 202210024477 A CN202210024477 A CN 202210024477A CN 114344055 B CN114344055 B CN 114344055B
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- cushion
- backrest
- plate
- lithotomy
- seat
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- 239000000463 material Substances 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 239000003507 refrigerant Substances 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 239000000741 silica gel Substances 0.000 claims abstract description 5
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 3
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
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- 206010021113 Hypothermia Diseases 0.000 claims description 3
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- 238000005452 bending Methods 0.000 claims description 2
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- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
The invention discloses a stone cutting position operating table, wherein two front wheels and two universal casters are arranged on the lower side of a chassis, the chassis, an upper connecting plate, a lower connecting plate and a triangular framework form a parallelogram structure, the height of the operating table can be adjusted, the inclination angle of a backrest can be adjusted, armrests or binding belts can be arranged on two sides of the backrest as required, a backrest cushion and the backrest plate form a movable pair through the bottom plate, a cushion is arranged on the seat, the backrest cushion can not interfere with the cushion when the angle of the backrest changes, two supporting leg mechanisms are arranged on two sides of the seat, the cushion and the backrest cushion are made of soft silica gel materials, a cavity structure in the cushion and the backrest cushion is filled with paraffin materials, a heat exchange tube is further arranged in the cavity structure, a heating device and a cooling device are integrated in the temperature exchange bin, and are respectively communicated with refrigerants in the cushion and the backrest cushion through four pipelines, and the temperature exchange bin uses paraffin in the cushion and the backrest cushion as heat transfer materials to realize conversion between solid and liquid states.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a lithotomy position operating table.
Background
The section Dan Wei is a commonly used body position in department operations such as general surgery, gynecology, urinary and the like, and is characterized in that a patient lies on the back, the buttocks are moved to the bedside, and the legs are placed on the leg frame, so that the section Dan Wei is commonly used in operations such as gynecological perineum and endoscopic total uterine operation, rectal operation, urinary surgery, cystoscope operation and the like; the patient in anesthesia has no muscle relaxation, weak or lost protective reflex effect and basically loses normal regulation ability due to partial or complete loss of perception, and the body position is also an operation body position which is easy to cause complications, is most easy to cause damage clinically and brings unnecessary pain to the patient; when the lithotomy position is adopted, the pressed parts of the patient body are at the positions of the sacrum caudal part, the shoulder, the spine and the like, are all the positions of the bone carina and have thinner muscles and fat, and in the long-time operation process, the microcirculation of tissues of the pressed parts are blocked due to the extrusion of the weight of the patient and the conduction of force application in the operation, so that pressure sores are easily formed.
Pressure sores in surgery are usually manifested as local tissue damage but complete epidermis or open ulcers, with pain, and pressure sores lesions on patients in surgery often manifest symptoms 1-3 days after surgery; the pressure sore during operation is positively correlated with the operation time, the patient can be subjected to irreversible damage after maintaining an operation position for more than 2 hours, the incidence rate of the pressure injury is increased by 33% every 30 minutes, and the pressure sore injury is inevitably generated after lasting for 4 hours; because the body types of patients are different, the matched gel cushion cannot be completely suitable for all patients, and pressure sore injuries with different degrees can occur when the cushion is padded for a long time, so that the development of the lithotomy position operation bed which can adapt to various body types of patients and can alleviate or eliminate pressure sore in operation has remarkable significance.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a lithotomy position operating table with a variable supporting surface shape, which is used for increasing the contact surface with a patient and reducing the pressure in unit area.
The technical scheme adopted by the invention is as follows: a lithotomy position operating table comprises a bed frame mechanism, a supporting leg mechanism and a temperature changing system; the lower side of the chassis in the bedstead mechanism is provided with two front wheels and two universal casters, so that the operation bed can be conveniently moved and fixed, the chassis, the upper connecting plate, the lower connecting plate and the triangular framework form a parallelogram structure, the first electric cylinder can drive the operation bed to lift and position through the parallelogram structure, the seat is rotationally connected with the triangular framework, the second electric cylinder can adjust the pitching angle of the operation bed, the backrest plate is rotationally connected with the seat, the third electric cylinder can adjust the tilting angle of the backrest plate, the two sides of the backrest plate can be provided with armrests or binding belts as required, the backrest cushion and the backrest plate form a moving pair through the bottom plate, the cushion is fixedly arranged on the seat plate, the supporting rod is arranged between the seat plate and the bottom plate, and the supporting rod can pull the backrest cushion to move when the tilting angle of the backrest plate changes, so that the backrest cushion and the cushion are prevented from interfering; the two leg supporting mechanisms are arranged on two sides of the seat plate, and the leg supporting plate has six spatial degrees of freedom, so that comfortable leg support can be realized for patients with various body types.
Preferably, the cushion and the backrest cushion are made of soft silica gel, a closed cavity structure is formed in the cushion and the backrest cushion, paraffin materials are filled in the cavity structure, heat exchange tubes are arranged in the cavity structure inside the cushion and the backrest cushion, the cushion is fixedly arranged on the seat plate, and the backrest cushion is fixedly arranged on the bottom plate.
Preferably, a temperature changing bin in the temperature changing system is fixedly arranged at the lower side of the lower connecting plate, a heating device and a cooling device are integrated in the temperature changing bin, and are respectively communicated with heat exchange tubes in the cushion and the backrest cushion through four pipelines, and the temperature changing bin uses a refrigerant as a heat transfer substance to enable paraffin in the cushion and the backrest cushion to realize solid-liquid conversion.
Preferably, the refrigerant may be purified water.
Preferably, the heat exchange tube is made of copper tube material with good heat conduction performance, and the heat exchange tube is of a reciprocating bending structure so as to increase heat exchange area.
Preferably, the paraffin wax in the cushion and the backrest cushion has a molecular formula of C 22 H 46 。
Preferably, the rear end of the armrest is provided with a sliding block with an adjustable position, and the sliding block is provided with a locking rod capable of locking the armrest position.
Preferably, the two ends of the binding belt are provided with slide blocks with adjustable positions, and the slide blocks are provided with locking rods capable of locking the positions of the binding belt.
Preferably, the expansion and contraction of each electric cylinder and the temperature change of the temperature changing bin in the operation bed can be controlled by an upper computer according to the operation requirement.
Preferably, the temperature of the cushion and the backrest cushion can be controlled by the temperature changing bin, and heat is continuously provided for a patient, so that the hypothermia complication of the patient in operation is avoided.
Preferably, the operation table can also be used as a gynecological examination table or a delivery table.
Preferably, the square basin is made of stainless steel and is arranged at the lower side of the semicircular notch at the front side of the seat plate, so that blood and surgical wastes can be conveniently collected.
The invention has the beneficial effects that: (1) when the paraffin is in a liquid state, the cushion and the backrest cushion can be in a flowing state, so that the paraffin can be fully contacted with the body of a patient, the contact area is increased to the maximum extent, the supporting pressure of a unit area is reduced, the patient has good use experience, and the occurrence rate of pressure sores can be reduced; (2) after the body position of the patient is placed, the paraffin becomes solid, so that the patient can be stably supported, and the influence on the operation effect after the body position of the patient is changed is prevented; (3) the temperature of the cushion and the backrest cushion can be regulated within a certain range, so that heat can be continuously provided for a patient, and the patient is prevented from suffering from hypothermia complications in the operation; (4) the position of the binding belt is adjustable, the tightness is adjustable, the binding belt can be quickly connected and opened, and the use is flexible and convenient; (5) the armrest position is adjustable and also detachable, and can be flexibly adjusted according to the body shape of a patient; (6) the back cushion is provided with a small gap between the back cushion and the cushion when being horizontally placed, and can move upwards when the back is turned upwards, so that interference with the cushion is avoided; (7) the leg supporting mechanisms can slide and lock at two sides of the seat plate, so that the leg supporting plate has six spatial degrees of freedom, and the leg supporting requirements of patients with various body types can be met; (8) the height and the pitching angle of the operating table can be adjusted, so that the operating table has high flexibility; (9) the operation table can also be used as a gynecological examination table and a delivery table, and has rich functions.
Drawings
FIG. 1 is a schematic view of the overall structure of a semi-seated lithotomy position of the present invention.
FIG. 2 is a schematic diagram of the overall structure of a standard lithotomy position of the present invention.
Fig. 3 is an enlarged partial schematic view of the present invention.
Fig. 4 is a partial cross-sectional view of the seat cushion.
Fig. 5 is a partial cross-sectional view of the back pad.
Reference numerals: 1 chassis, 1.1 wheel cover, 1.2 vertical plate, 1.3 first connecting lug, 2 universal wheels, 3 first electric cylinder, 4 upper connecting plate, 4.1 second connecting lug, 4.2 third connecting lug, 5 lower connecting plate, 6 tripod, 6.1 sixth connecting lug, 7 brace, 8 back plate, 8.1 fourth connecting lug, 8.2 expanded guide rail, 9 bottom plate, 9.1 rotating shaft, 10 back cushion, 10.1 second heat exchange tube, 11 handrail, 11.1 handrail lock rod, 12 leg mechanism, 13 cushion, 13.1 first heat exchange tube, 14 square basin, 15 seat plate, 15.1 support lug, 15.2 leg slide rail, 15.3 fifth connecting lug, 15.4 slide groove, 16 second electric cylinder, 17 temperature changing cabin, 18 front wheel, 19 third electric cylinder, 20 first tube, 21 second tube, 22 third tube, 23 fourth tube, 24 first lock rod, 25 second lock rod, 26 support rod, 27 first slide block, 28 third support leg, 29.1 tie strap, 30 tie strap, and 30.1 tie strap.
Detailed Description
The invention will be further described with reference to specific examples, illustrative examples and illustrations of which are provided herein to illustrate the invention, but are not to be construed as limiting the invention.
As shown in fig. 1, two round bars are arranged on two sides of the front end of the chassis 1, a front wheel 18 is rotatably mounted on the front end of each round bar, a wheel cover 1.1 is arranged on the upper side of each front wheel 18 and used for protecting the front wheel 18, two universal wheels 2 are mounted on two sides of the rear end of the chassis 1, the two universal wheels 2 and the two front wheels 18 jointly realize stable support and movement of an operating table, brakes are arranged on the two universal wheels 2 and can realize locking of the operating table on the ground, two vertical plates 1.2 are arranged on the upper side of the rear end of the chassis 1, the two vertical plates 1.2 form a bilateral symmetry relationship with respect to the longitudinal central plane of the chassis 1, and a first connecting lug 1.3 is further arranged on the upper side of the chassis 1.
The lower side of the upper connecting plate 4 is provided with a second connecting lug 4.1, the upper side of the upper connecting plate is provided with a third connecting lug 4.2, a square lightening hole is formed in the tripod 6, two coaxial sixth connecting lugs 6.1 are transversely arranged on the front side of the tripod 6, the lower end of the upper connecting plate 4 is rotationally connected with the upper end of the vertical plate 1.2, the upper end of the upper connecting plate 4 is rotationally connected with the tripod 6, the lower end of the lower connecting plate 5 is rotationally connected with the vertical plate 1.2, the upper end of the lower connecting plate 5 is rotationally connected with the tripod 6, the vertical plate 1.2, the upper connecting plate 4, the lower connecting plate 5 and the tripod 6 form a parallelogram structure, an encoder and a brake are integrated in the first electric cylinder 3, the extension amount can be precisely controlled, the locking positioning can be stabilized, the lower end of the first electric cylinder 3 is rotationally connected with the first connecting lug 1.3, the upper end of the first electric cylinder 3 is rotationally connected with the second connecting lug 4.1, accordingly, the lifting and positioning of an operation bed can be realized by the first electric cylinder 3, namely the first electric cylinder 3 can be extended to enable the operation bed to be lifted, and the operation bed to be contracted.
As shown in fig. 1 and 3, the seat 15 is of a square structure with a rounded corner, a semicircular notch is formed in the middle position of the front side of the seat 15, two support lugs 15.1 are arranged at the rear ends of two sides of the seat 15, round holes are formed in the upper ends of the support lugs 15.1, two horizontal support leg sliding rails 15.2 are arranged at the front ends of two sides of the seat 15, two coaxial fifth connecting lugs 15.3 are transversely arranged on the lower side of the seat 15, two L-shaped sliding grooves with opposite openings are further formed in the lower side of the seat 15, the rear end of the lower side of the seat 15 is rotatably connected with the upper end of the tripod 6, an encoder and a brake are integrated in the second electric cylinder 16, the extension can be accurately controlled and can be stably locked and positioned, the lower ends of the two second electric cylinders 16 are rotatably connected with the two sixth connecting lugs 6.1 respectively, so that the tripod 6, the seat 15 and the two second electric cylinders 16 form a triangular stable supporting structure, and the two second electric cylinders 16 can be rotatably connected with the corresponding two fifth connecting lugs 15.3, and the two second electric cylinders 16 can be conveniently inserted into the square groove 14, and the square groove can be conveniently inserted into the square groove 14, and the side of the seat 14 is provided with a square flange.
Four sliding blocks are fixedly arranged on the front side of the back plate 8, two expansion guide rails 8.2 are fixedly arranged on two sides of the back plate 8, a fourth connecting lug 8.1 is arranged on the rear side of the back plate 8, the lower end of the back plate 8 is rotationally connected with the rear end of the seat plate 15, an encoder and a brake are integrated in the third electric cylinder 19, the elongation can be precisely controlled, the locking and the positioning can be stabilized, the lower end of the third electric cylinder 19 is rotationally connected with the third connecting lug 4.2, the upper end of the third electric cylinder 19 is rotationally connected with the fourth connecting lug 8.1, and therefore the third electric cylinder 19 can drive the back plate 8 to rotate, and the inclination angle of the back can be adjusted according to operation requirements; the handrail 11 comprises a left handrail and a right handrail, the upper side of the right handrail is provided with a sponge, the outer side of the sponge is coated with a leather surface, a patient can have good use experience, the rear end of the right handrail is provided with a handrail sliding block, the handrail sliding block is provided with a threaded hole, a handrail locking rod 11.1 is arranged in the threaded hole formed in the handrail sliding block and forms a thread pair, the handrail sliding block at the rear end of the right handrail can be arranged on an expansion guide rail 8.2 at the right side of the backboard 8 and forms a moving pair, and the handrail locking rod 11.1 can be rotated clockwise to compress the expansion guide rail 8.2, so that the position locking of the right handrail is realized; the left handrail and the right handrail form a bilateral symmetry structure, and the left handrail can be arranged on an expansion guide rail 8.2 at the left side of the backboard 8 to form a moving pair and can realize position locking.
The bottom plate 9 is of a hard platy structure, two coaxial rotating shafts 9.1 are transversely arranged on two sides of the lower end of the bottom plate 9, two parallel guide rails are longitudinally arranged on the rear side of the bottom plate 9, the two parallel guide rails are matched with four sliding blocks on the front side of the backboard 8, the bottom plate 9 can slide back and forth on the backboard 8, the lower ends of the two supporting rods 7 are respectively connected with round holes in the upper ends of the two supporting lugs 15.1 in a rotating mode, the upper ends of the two supporting rods 7 are respectively connected with the rotating shafts 9.1 on the corresponding sides in a rotating mode, and therefore when the backboard 8 rotates downwards, the two supporting rods 7 can pull the bottom plate 9 to move downwards right relative to the backboard 8, and when the backboard 8 rotates upwards, the two supporting rods 7 can push the bottom plate 9 to move upwards left relative to the backboard 8.
As shown in fig. 4, the cushion 13 is made of soft silica gel, a semicircular notch is provided in the middle of the front side, a closed cavity structure is provided in the cushion, and the cavity structure is filled with a molecular formula C 22 H 46 Paraffin material, C 22 H 46 The paraffin wax has a melting point of about 44 ℃, i.e. C at a temperature below 44 DEG C 22 H 46 The paraffin is solid, and C is higher than 44 DEG C 22 H 46 The paraffin is in a liquid state, the bottom side of the cavity structure in the cushion 13 is provided with a first heat exchange tube 13.1, and the first heat exchange tube 13.1 is in a bent copper tube structure so as to enlarge the C 22 H 46 The contact area of paraffin improves the heat exchange efficiency, the interfaces at the two ends of the first heat exchange tube 13.1 are respectively an inlet and an outlet, and the inlet and the outlet are arranged at the outer side of the cushion 13; the seat cushion 13 is fixedly arranged on the upper side of the seat plate 15, and a semicircular notch on the front side of the seat cushion 13 corresponds to the semicircular notch on the front side of the seat plate 15; the backrest cushion 10 is made of soft silica gel material, and is internally provided with a closedCavity structure, the molecular formula is C is filled in the cavity structure 22 H 46 The bottom side of the cavity structure in the back cushion 10 is provided with a copper heat exchange tube with a curved shape, the inlet and the outlet of the heat exchange tube are arranged on the outer side of the back cushion 10, and the back cushion 10 is fixedly arranged on the front side of the bottom plate 9.
As shown in fig. 2, the tightness of the binding belt 30 can be adjusted, and the binding belt 30 can be quickly connected and opened through a buckle structure, two binding belt sliding blocks are arranged at two ends of the binding belt 30, the binding belt sliding blocks can be arranged on the extension guide rails 8.2 at two sides of the backboard 8 and form a moving pair, threaded holes are formed in the binding belt sliding blocks, the binding belt locking rod 30.1 is arranged in the threaded holes formed in the binding belt sliding blocks and forms a threaded pair, and the binding belt locking rod 30.1 can be pressed against the extension guide rails 8.2 by rotating clockwise, so that the position of the binding belt 30 is fixed; the strap 30 may be used to secure the patient's body.
The two support leg mechanisms 12 are respectively arranged at two sides of the operating table and are respectively used for supporting left legs and right legs of a patient, a support leg sliding block 26 in the support leg mechanisms 12 is arranged on a support leg sliding rail 15.2 and forms a moving pair, a vertical round hole and two transverse threaded holes are formed in the support leg sliding block 26, a first threaded hole corresponds to the vertical round hole, a second threaded hole corresponds to the support leg sliding rail 15.2, a first lock rod 24 is arranged in the first threaded hole and forms a threaded pair, a second lock rod 25 is arranged in the second threaded hole and forms a threaded pair, and the position of the support leg sliding block 26 can be locked by clockwise rotation of the second lock rod 25; the first support rod 27 is of a 90-degree bent round rod structure, the front end of the first support rod 27 is provided with a ball socket structure, the lower end of the ball socket structure is provided with a threaded hole, the third lock rod 28 is arranged in the threaded hole at the lower end of the ball socket structure and forms a threaded pair, the round rod at the lower end of the first support rod 27 is arranged in a vertical round hole on the support leg sliding block 26, so that the first support rod 27 can move up and down and rotate relative to the support leg sliding block 26, and the first lock rod 24 can be pressed against the first support rod 27 by rotating clockwise, and further the movement and rotation of the first support rod 27 are locked.
The leg supporting plate 29 is used for supporting the leg of a patient, the upper side of the leg supporting plate 29 is of an arc concave structure, and a soft gel pad is arranged on the inner side of the arc concave structure, so that the patient has good use experience, a leg binding belt 29.1 is arranged on the upper side of the leg supporting plate 29, the leg binding belt 29.1 is used for fixing the leg of the patient on the leg supporting plate 29, the tightness of the leg binding belt 29.1 can be adjusted, and quick connection and opening can be realized through an eye-splice structure; the lower side of the leg supporting plate 29 is provided with a spherical surface which is arranged in the ball-and-socket structure at the front end of the first supporting rod 27 and forms a spherical pair, so that the leg supporting plate 29 has three spatial rotation degrees of freedom, and the third locking rod 28 can be rotated clockwise to enable the spherical surface at the lower end of the leg supporting plate 29 to be pressed in the ball-and-socket structure, thereby locking the position of the leg supporting plate 29.
The temperature changing bin 17 is fixedly arranged at the lower side of the lower connecting plate 5, a temperature control device is arranged in the temperature changing bin 17, the first pipe 20 is a heat preservation hose, the upper end of the first pipe 20 is communicated with the inlet of the second heat exchange pipe 10.1 in the backrest cushion 10, the second pipe 21 is a heat preservation hose, the upper end of the second pipe 21 is communicated with the outlet of the second heat exchange pipe 10.1, and the lower ends of the first pipe 20 and the second pipe 21 are communicated with the temperature changing bin 17; the upper end of the third pipe 22 is a heat preservation hose, the upper end of the third pipe is communicated with the inlet of the first heat exchange pipe 13.1 in the cushion 13, the fourth pipe 23 is a heat preservation hose, the upper end of the fourth pipe is communicated with the outlet of the first heat exchange pipe 13.1, and the lower ends of the third pipe 22 and the fourth pipe 23 are communicated with the temperature changing bin 17.
Embodiment one: the extension and retraction of each electric cylinder in the operation bed and the temperature change of the temperature changing bin 17 can be controlled by an upper computer according to the operation requirement.
Embodiment two: the back cushion 10 is fixedly arranged on the bottom plate 9, the bottom plate 9 and the back plate 8 form a moving pair, when the back cushion 10 and the seat cushion 13 are positioned on the same horizontal plane, a small gap is formed between the back cushion 10 and the seat cushion 13, and when the back cushion 10 is turned upwards, the two supporting rods 7 push the back cushion 10 to move upwards left, so that the lower end of the back cushion 10 can avoid interference with the rear end of the seat cushion 13, and the lower end of the back cushion 10 and the rear end of the seat cushion 13 always have a small gap, so that a patient has better use experience.
Embodiment III: in the normal temperature state, paraffin in the cushion 13 and the back cushion 10 is in a solid state, the back cushion 10 and the cushion 13 are firstly adjusted to be in a horizontal state before operation, then a heating device in the temperature changing bin 17 heats purified water serving as a refrigerant to 46 ℃, hot water is respectively input into heat exchange tubes in the back cushion 10 and the cushion 13 through a first tube 20 and a third tube 22, heat in the hot water is transferred into the paraffin in the back cushion 10 and the cushion 13 through the heat exchange tubes, so that the solid paraffin is gradually melted into a liquid state, cooled hot water is respectively returned to the temperature changing bin 17 through a second tube 21 and a fourth tube 23, after repeated heating cycles until the paraffin in each cushion is completely melted into the liquid state, a patient is placed on an operation table, and put into suitable lithotomy position and fix with bandage 30, thus back cushion 10 and cushion 13 can be deformed under the pressure of patient's body and fully contact with patient's body, then the cooling device in the temperature changing storehouse 17 cools the purified water to 37 deg.C, and input the purified water after cooling into the heat exchange tube in back cushion 10 and cushion 13 separately, the heat in the liquid paraffin is transferred into the purified water through the heat exchange tube, thus make the paraffin cool and gradually turn into the solid state from the liquid state, the purified water after warming flows back into temperature changing storehouse 17 through second pipe 21 and fourth pipe 23 separately, through cooling cycle many times until the liquid paraffin in each cushion becomes the solid state completely, then can implement the operation to patient.
Embodiment four: the patient can be changed into a semi-sitting lithotomy position after the back cushion 10 is turned upwards, and the operation table can be used for gynecological examination or delivery; when the operation table is used for gynecological examination or delivery, the paraffin in the backrest cushion 10 and the cushion 13 can be always in a liquid state, so that a patient can have good use experience, heat can be continuously provided for the patient, and the patient is always in a warm environment.
Claims (9)
1. A lithotomy position operating table comprises a bed frame mechanism, a supporting leg mechanism and a temperature changing system;
the lower side of the chassis in the bedstead mechanism is provided with two front wheels and two universal casters, so that the operation bed can be conveniently moved and fixed, the chassis, the upper connecting plate, the lower connecting plate and the triangular framework form a parallelogram structure, the first electric cylinder can drive the operation bed to lift and position through the parallelogram structure, the seat is rotationally connected with the triangular framework, the second electric cylinder can adjust the pitching angle of the operation bed, the backrest plate is rotationally connected with the seat, the third electric cylinder can adjust the tilting angle of the backrest plate, the two sides of the backrest plate can be provided with armrests or binding belts as required, the backrest cushion and the backrest plate form a moving pair through the bottom plate, the cushion is fixedly arranged on the seat plate, the supporting rod is arranged between the seat plate and the bottom plate, and the supporting rod can pull the backrest cushion to move when the tilting angle of the backrest plate changes, so that the backrest cushion and the cushion are prevented from interfering; the two leg supporting mechanisms are arranged on two sides of the seat plate, wherein the leg supporting plate has six spatial degrees of freedom, and comfortable leg support can be realized for patients with various body types;
the cushion and the backrest cushion are made of soft silica gel, a closed cavity structure is arranged in the cushion and the backrest cushion, paraffin materials are filled in the cavity structure, heat exchange tubes are arranged in the cavity structures in the cushion and the backrest cushion, the cushion is fixedly arranged on the seat plate, and the backrest cushion is fixedly arranged on the bottom plate;
the temperature changing bin in the temperature changing system is fixedly arranged on the lower side of the lower connecting plate, a heating device and a cooling device are integrated in the temperature changing bin, the temperature changing bin is communicated with heat exchange tubes in the cushion and the backrest cushion respectively through four pipelines, and the temperature changing bin uses a refrigerant as a heat transfer substance to enable paraffin in the cushion and the backrest cushion to realize conversion between solid and liquid.
2. A lithotomy site surgical bed as in claim 1, wherein: the refrigerant can be purified water.
3. A lithotomy site surgical bed as in claim 1, wherein: the heat exchange tube is made of copper tube material with good heat conduction performance, and is of a reciprocating bending structure so as to increase heat exchange area.
4. A lithotomy site surgical bed as in claim 1, wherein: the molecular formula of paraffin in the cushion and the backrest cushion is C 22 H 46 。
5. A lithotomy site surgical bed as in claim 1, wherein: the rear end of the handrail is provided with a sliding block with an adjustable position, and the sliding block is provided with a locking rod capable of locking the position of the handrail.
6. A lithotomy site surgical bed as in claim 1, wherein: the two ends of the binding belt are provided with slide blocks with adjustable positions, and the slide blocks are provided with locking rods capable of locking the positions of the binding belt.
7. A lithotomy site surgical bed as in claim 1, wherein: the extension and retraction of each electric cylinder and the temperature change of the variable-temperature bin in the operating table can be controlled by the upper computer according to the operation requirement.
8. A lithotomy site surgical bed as in claim 1, wherein: the temperature changing bin can control the temperature of the cushion and the backrest cushion, and continuously provide heat for patients, so that the complications of hypothermia of the patients in operation are avoided.
9. A lithotomy site surgical bed as in claim 1, wherein: the operation table can also be used as a gynecological examination table or a delivery table.
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| CN202210024477.8A CN114344055B (en) | 2022-01-11 | 2022-01-11 | Lithotomy position operation table |
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| CN202210024477.8A CN114344055B (en) | 2022-01-11 | 2022-01-11 | Lithotomy position operation table |
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| CN114344055B true CN114344055B (en) | 2024-02-27 |
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|---|---|
| CN114344055A (en) | 2022-04-15 |
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