CN109645951B - Gynaecology and obstetrics is with expanding palace stick - Google Patents
Gynaecology and obstetrics is with expanding palace stick Download PDFInfo
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- CN109645951B CN109645951B CN201811542901.8A CN201811542901A CN109645951B CN 109645951 B CN109645951 B CN 109645951B CN 201811542901 A CN201811542901 A CN 201811542901A CN 109645951 B CN109645951 B CN 109645951B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/32—Devices for opening or enlarging the visual field, e.g. of a tube of the body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
- A61M29/02—Dilators made of swellable material
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/14—Female reproductive, genital organs
- A61M2210/1433—Uterus
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Abstract
The invention discloses a uterine dilator for obstetrics and gynecology department, which belongs to the field of medical instruments and comprises a swinging rod, an extending rod and a handle which are sequentially connected, wherein the upper end of the swinging rod is connected with an expanding medicine feeding mechanism, the expanding medicine feeding mechanism comprises an inner cavity pipe and an expansion pipe sleeved on the outer side of the inner cavity pipe, a cavity is formed between the inner cavity pipe and the expansion pipe, and the outer surface of the expansion pipe is attached and wrapped with an elastic membrane sleeve; the top of the elastic membrane sleeve is sunk into the through hole at the upper end of the inner cavity pipe and is pressed on the inner cavity pipe by the piston body; the lower part of the inner cavity pipe is provided with a first capillary hole, and a second capillary hole is distributed on the expansion pipe; the swing rod and the extending rod are rotatably connected through a ball block and a spherical groove, the lower part of the ball block is provided with a conical groove, one side of the conical groove is provided with a strip-shaped groove, a sliding block is connected in the strip-shaped groove in a sliding manner, and the lower part of the sliding block is connected with a driving rod; the lower part of the handle and the lower end of the driving rod are rotatably connected with a screw bolt component of the screw hole. The uterus dilating effect of the invention is consistent with the expectation, the carrying capacity of the liquid medicine is large, and the control condition is good; the angle adjustment operation is accurate and easy to control, and the application is convenient.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a uterine dilating rod for obstetrics and gynecology department.
Background
The uterine dilating operation is a common operation in the process of diagnosing and treating gynecological diseases, and in the process of diagnosing and treating gynecological diseases, in order to accurately grasp the symptoms of a patient, a clinician needs to dilate a uterine orifice by using a uterine dilating rod to find out the condition in a uterine cavity. When in use, because of the special physiological function of the cervical orifice contraction, the dilating rods with the diameter from thin to thick and the bending angle gradually reduced are usually required to perform dilating operation one by one, because the repeatedly replacing of the dilating rods can not only prolong the operation time, but also increase the pain of patients, and even because the used dilating rods are large in quantity, the probability of cervical infection is correspondingly high, and the risk factor of injury to human bodies is large.
At present, a plastic uterine dilating rod is disclosed in the patent with the publication number of CN 204864503U, which comprises a plastic supporting rod, an outer wrapping layer wrapping the supporting rod, a silica gel body wrapping the head of the outer wrapping layer and a polyvinyl alcohol film wrapping the silica gel body, wherein the polyvinyl alcohol film contains injection. The silica gel body and the polyvinyl alcohol can be rapidly expanded in a short time when meeting heat and water, so that the cervical canal can be rapidly expanded, the radian and the direction of the uterine dilator can be randomly adjusted, clinical practical operation is more convenient, and the degradable material is adopted, so that the environment protection is more facilitated. However, it has the following disadvantages: firstly, the silica gel body and the polyvinyl alcohol membrane are likely to be heated and wetted to expand before reaching the cervical orifice, so that the diameter of the uterine dilating rod is larger than the expected diameter, and the uterine dilating operation is inconvenient; secondly, the amount of injection carried on the polyvinyl alcohol membrane is small, and the polyvinyl alcohol membrane can be separated in advance due to extrusion in the process that the uterine dilator extends to the cervical orifice, so that the drug control condition is poor; thirdly, the requirement of angle adjustment is realized by utilizing the plasticity of the material of the rod body, and the angle control is not accurate enough.
The patent with the publication number of CN 206518763U discloses a disposable painless uterine dilating rod, which comprises a handle, a rod body, a uterine dilating head and an elastic body, wherein the handle, the rod body and the uterine dilating head are sequentially connected; the blind hole is internally provided with a pull rope, one end of the pull rope is connected with the uterine dilator head, the other end of the pull rope is connected with a clamp, and the clamp is slidably arranged in the clamping groove. The angle between the uterine dilating head and the rod body can be adjusted by controlling the position of the clamp in the clamping groove and pulling the pull rope, so that the pain of a patient caused by the condition that the uterine dilating rod of a single model cannot adjust the angle and needs to be frequently replaced is reduced. However, it has the following disadvantages: the manual push-and-pull checkpost of medical personnel, its dynamics control is unstable, probably leads to the angle sudden change great to bring great misery even damage for the patient.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to solve the technical problem of providing a uterine dilating rod for obstetrics and gynecology department, which has the implementation effect consistent with the expected effect and is convenient for uterine dilating operation; the liquid medicine carrying capacity is large, the liquid medicine cannot be separated from the carrying mechanism in advance, and the medicine control condition is good; the angle adjustment operation is accurate and easy to control, the angle adjustment is facilitated at any time in the expansion process, great pain and even injury to a patient caused by excessive force can be avoided, and the application is convenient.
2. Technical scheme
In order to solve the problems, the invention adopts the following technical scheme:
a uterine dilator for obstetrics and gynecology department comprises a swing rod, an extension rod and a handle which are connected in sequence, wherein a ball block is formed at the lower end of the swing rod, a spherical groove matched with the ball block is formed at the upper end of the extension rod, a closing-in port with the caliber larger than the width of the swing rod and smaller than the diameter of the ball block is arranged at the top of the spherical groove, the handle is coaxially connected with the extension rod, a rubber block is fixed at the upper end of the swing rod, an expansion medicine feeding mechanism which is coaxially arranged with the swing rod is connected onto the rubber block, a driving swing mechanism is arranged at the lower part of the ball block, and an operating mechanism is arranged at the lower;
the expanding and medicine-feeding mechanism comprises an inner cavity pipe fixed on the top surface of the rubber block and an expansion pipe sleeved outside the inner cavity pipe, openings are formed in the upper ends of the inner cavity pipe and the expansion pipe, an elastic membrane sleeve is attached and wrapped on the outer surface of the expansion pipe, the top of the elastic membrane sleeve is sunk into the openings, a piston body arranged on the top of the elastic membrane sleeve is arranged in the opening, the elastic membrane sleeve on the peripheral side of the piston body is pressed on the inner wall of the inner cavity pipe by the piston body, a through hole is formed in the middle of the part, located below the piston body, of the top of the elastic membrane sleeve, and the bottom of the piston body is connected with a pull wire which sequentially penetrates through the central shaft of; the lower part of the inner cavity pipe is provided with capillary holes I at equal intervals along the circumference, the inner cavity pipe is made of a water-swellable material, a gap is reserved between the swelling pipe and the inner cavity pipe to form a cavity, capillary holes II are uniformly distributed on the swelling pipe, and the swelling pipe is made of polyvinyl alcohol;
the driving swing mechanism comprises a cone groove formed in the lower portion of the ball block, the cone groove is gradually wide from top to bottom, the diameter of the bottom of the cone groove is smaller than that of the ball block, the top of the cone groove is located at the center of the ball block, a strip-shaped groove parallel to a bus of the cone groove is formed in one side of the cone groove, a sliding block is connected in the strip-shaped groove in a sliding mode, and the lower portion of the sliding block is connected with a driving rod which is parallel to the axial direction of the stretching rod and penetrates through the stretching rod;
the operating mechanism comprises an inner threaded hole and a stud, the inner threaded hole is embedded in the lower portion of the handle, the stud is arranged in the inner threaded hole, outer threads and inner threads which are matched with each other are correspondingly distributed on the outer surface of the stud and the side wall of the inner threaded hole respectively, a T-shaped groove is formed in the upper end of the stud, the lower end of the driving rod penetrates through the extension rod and then extends into the handle, a T-shaped block matched with the T-shaped groove is formed in the lower end of the driving rod, the T-shaped block is clamped into the T-shaped groove, and the lower end of the.
Further, the lower end of the expansion pipe is connected to the periphery of the rubber block in a threaded connection mode. The sealing performance of the bottom of the cavity formed between the inner cavity pipe and the expansion pipe can be ensured, and the expansion pipe is convenient to mount and dismount.
Further, a pull ring is connected to the lower end of the pull wire after the lower end of the pull wire penetrates through the handle. The medical staff can pull the pull wire manually, and the self weight of the pull ring can lead the part of the pull wire positioned at the outer side of the handle to hang down, thus preventing the pull wire from being wound on other parts; in addition, the pull ring can also prevent the lower end of the pull wire from retracting into the handle to cause that the pull wire can not be pulled.
Furthermore, be equipped with the spacing groove that is on a parallel with bar groove length direction on a lateral wall in the bar inslot, be fixed with the gag lever post that extends to the spacing inslot on the slider. The limiting rod slides in the limiting groove, and can play a role in guiding and limiting the sliding of the sliding block in the strip-shaped groove.
Furthermore, a rotating plate perpendicular to the stud is fixed at the lower end of the stud. The rotating plate can provide convenience for screwing in or screwing out of the stud.
Furthermore, the rotating plate is in a cross shape, and the contour line of the rotating plate is formed by alternately distributing and connecting convex arc lines and concave arc lines. The stud is convenient to rotate manually and does not damage hands.
Furthermore, the outer surface of the handle is wrapped with an anti-slip sleeve. Can prevent the handle from slipping when being held by hands.
3. Advantageous effects
(1) The medicine feeding device comprises a swing rod, an extension rod and a handle which are sequentially connected, wherein the upper end of the swing rod is connected with an expansion medicine feeding mechanism, the expansion medicine feeding mechanism comprises an inner cavity tube and an expansion tube sleeved outside the inner cavity tube, the inner cavity tube and the expansion tube can expand in water, an elastic membrane sleeve is attached and wrapped on the outer surface of the expansion tube, and a gap is reserved between the expansion tube and the inner cavity tube to form a cavity. In the process that the uterus dilating rod stretches into the cervical orifice, the elastic membrane sleeve plays a role in protecting the expansion tube, so that the expansion tube cannot expand in advance, the expansion of the inner cavity tube does not influence the diameter of the dilating and medicine feeding mechanism due to the existence of the cavity, the diameter of the dilating and medicine feeding mechanism conforms to the expected dilating requirement, and the uterus dilating operation is facilitated.
(2) The upper ends of the inner cavity pipe and the expansion pipe are provided with through openings, the top of the elastic membrane sleeve is sunk into the through openings and is pressed on the inner wall of the inner cavity pipe by the piston body, and the bottom of the piston body is connected with a pull wire; the lower part of the inner cavity pipe is provided with a capillary hole I, and capillary holes II are uniformly distributed on the expansion pipe. Before the uterus dilating operation, the liquid medicine is injected into the inner cavity tube, the inner cavity tube absorbs moisture and expands to close the capillary hole I, most of the liquid medicine is closed in the inner cavity tube, the liquid medicine carrying capacity is large, and the liquid medicine cannot be separated from the carrying mechanism in advance when the uterus dilating rod extends into the cervical orifice; when the expanding medicine feeding mechanism reaches the cervical orifice, the pull wire is pulled manually to drive the piston body to move downwards along the inner cavity of the inner cavity tube, the head of the elastic membrane sleeve is pushed to move towards the lower end of the inner cavity tube, and the main body of the elastic membrane sleeve is pulled to move upwards, so that the expansion tube is exposed and directly contacts with the side wall of the cervical orifice; in the process, the piston body pushes the liquid medicine to extrude the capillary holes to enter the cavity, and when the piston body moves to the bottom of the inner cavity pipe, the elastic membrane sleeves on the periphery of the piston body can block the capillary holes, so that the liquid medicine can be prevented from flowing back; after the expansion tube is exposed, the expansion tube absorbs moisture and expands rapidly, the space of the cavity is reduced, and the first capillary hole is blocked, so that the liquid medicine can only wash out the second capillary hole and effectively acts on the cervix, and the relaxation and expansion of the cervix can be promoted. The present invention has better control of the liquid medicine.
(3) The connecting ends of the swing rod and the extension rod are respectively and correspondingly provided with a ball block and a ball groove, the lower part of the ball block is provided with a driving swing mechanism, the lower part of the handle is provided with an operating mechanism, the driving swing mechanism comprises a cone groove arranged at the lower part of the ball block, one side of the cone groove is provided with a strip-shaped groove parallel to a bus of the cone groove, a sliding block is connected in the strip-shaped groove in a sliding manner, and the lower part of the sliding block is connected with a driving rod which is parallel to the axial direction of the; the operating mechanism comprises an inner threaded hole embedded in the lower portion of the handle and a stud arranged in the inner threaded hole, and a T-shaped groove and a T-shaped block which are matched with each other are correspondingly arranged at the upper end of the stud and the lower end of the driving rod respectively. When the angle needs to be adjusted, the stud is manually rotated to be retracted (or advanced) in the inner screw hole, due to the matching effect of the T-shaped groove and the T-shaped block, the stud is rotated without driving the driving rod to rotate, but the retraction (or advancement) of the stud can pull the driving rod to be retracted (or advanced) along the axial direction of the extension rod, so that the slider is pulled to be retracted (or advanced) along the axial direction of the extension rod, but an included angle is formed between the strip-shaped groove and the axial direction of the extension rod, and the movement of the slider can drive the strip-shaped groove to drive the ball block to rotate, so that the swinging rod is driven to rotate, the purpose of angle adjustment is realized, the adjustment operation is accurate and easy to control, the angle can be adjusted at any time in the expansion process, and great pain and even damage to a patient due to excessive force can be avoided; because the stud can stop screwing or unscrewing relative to the inner screw hole at any time, the state of the swing rod after deflection can be stably maintained.
In conclusion, the implementation effect of the invention is consistent with the expectation, and the uterus dilatation operation is convenient; the liquid medicine carrying capacity is large, the liquid medicine cannot be separated from the carrying mechanism in advance, and the medicine control condition is good; the angle adjustment operation is accurate and easy to control, the angle adjustment is facilitated at any time in the expansion process, great pain and even injury to a patient caused by excessive force can be avoided, and the application is convenient.
Drawings
FIG. 1 is a schematic structural diagram of an initial state of the present invention;
FIG. 2 is a schematic view of the angle-adjusted structure of the present invention;
FIG. 3 is an enlarged view of the structure of region A in FIG. 1;
FIG. 4 is an enlarged view of the structure of the area B in FIG. 1;
FIG. 5 is an enlarged view of the structure of region C of FIG. 1;
fig. 6 is a bottom view of the rotary plate 26.
Reference numerals: 1-swinging rod, 2-extension rod, 3-handle, 4-ball block, 5-spherical groove, 6-rubber block, 7-inner cavity tube, 8-expansion tube, 9-elastic membrane sleeve, 10-piston body, 11-stay wire, 12-capillary first, 13-cavity, 14-capillary second, 15-cone groove, 16-strip groove, 17-slide block, 18-driving rod, 19-internal screw hole, 20-stud, 21- 'T' -shaped groove, 22- 'T' -shaped block, 23-pull ring, 24-spacing groove, 25-spacing rod, 26-rotating plate and 27-antiskid sleeve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Examples
As shown in fig. 1 and 2, the uterine dilator for obstetrics and gynecology department comprises a swing rod 1, an insertion rod 2 and a handle 3 which are connected in sequence, wherein a ball block 4 is formed at the lower end of the swing rod 1, a spherical groove 5 matched with the ball block 4 is formed at the upper end of the insertion rod 2, a closing-up port with the caliber larger than the width of the swing rod 1 and smaller than the diameter of the ball block 4 is arranged at the top of the spherical groove 5, the handle 3 is coaxially connected with the insertion rod 2, a rubber block 6 is fixed at the upper end of the swing rod 1, an expansion medicine feeding mechanism coaxially arranged with the swing rod 1 is connected to the rubber block 6, a driving swing mechanism is arranged at the lower part of the ball block 4, and an operating mechanism is arranged at the lower part of the;
the expanding and medicine-feeding mechanism comprises an inner cavity tube 7 fixed on the top surface of the rubber block 6 and an expansion tube 8 sleeved outside the inner cavity tube 7, openings are formed in the upper ends of the inner cavity tube 7 and the expansion tube 8, an elastic membrane sleeve 9 is wrapped on the outer surface of the expansion tube 8 in an attached mode, as shown in figure 3, the top of the elastic membrane sleeve 9 is sunk into the openings, a piston body 10 arranged on the top of the elastic membrane sleeve 9 is arranged in each opening, the elastic membrane sleeve 9 on the peripheral side of the piston body 10 is pressed on the inner wall of the inner cavity tube 7, a through hole is formed in the middle of the part, located below the piston body 10, of the top of the elastic membrane sleeve 9, and the bottom of the piston body 10 is connected with a pull wire 11 which sequentially penetrates through the central shaft of the inner cavity tube 7, the rubber; the lower part of the inner cavity tube 7 is provided with first capillary holes 12 at equal intervals along the circumference, the inner cavity tube 7 is made of a water-swellable material (silica gel is adopted in the embodiment), a gap is reserved between the expansion tube 8 and the inner cavity tube 7 to form a cavity 13, second capillary holes 14 are uniformly distributed on the expansion tube 8, and the expansion tube 8 is made of polyvinyl alcohol;
the driving swing mechanism comprises a cone groove 15 formed in the lower portion of the ball block 4, the cone groove 15 is gradually wide from top to bottom, the diameter of the bottom of the cone groove 15 is smaller than that of the ball block 4, the top of the cone groove 15 is located at the center of the ball block 4, as shown in fig. 4, a strip-shaped groove 16 parallel to a generatrix of the cone groove 15 is formed in one side of the cone groove 15, a sliding block 17 is connected in the strip-shaped groove 16 in a sliding mode, and a driving rod 18 which is parallel to the axial direction of the extension rod 2 and penetrates through the extension rod 2 is connected to the lower portion of the sliding;
the operating mechanism comprises an inner threaded hole 19 and a stud 20, wherein the inner threaded hole 19 is embedded in the lower portion of the handle 3, the stud 20 is arranged in the inner threaded hole 19, as shown in fig. 5, outer surfaces of the stud 20 and side walls of the inner threaded hole 19 are correspondingly provided with outer threads and inner threads which are matched with each other, a T-shaped groove 21 is formed in the upper end of the stud 20, the lower end of the driving rod 18 penetrates through the extension rod 2 and then extends into the handle 3, a T-shaped block 22 matched with the T-shaped groove 21 is formed in the lower end of the driving rod, the T-shaped block 22 is clamped into the T-shaped groove 21, and the lower end of the stud.
In this embodiment, the lower end of the expansion pipe 8 is connected to the periphery of the rubber block 6 by a threaded connection. The sealing performance of the bottom of the cavity 13 formed between the inner cavity pipe 7 and the expansion pipe 8 can be ensured, and the expansion pipe 8 is convenient to mount and dismount.
In the present embodiment, as shown in fig. 1 and 2, a pull ring 23 is connected to the lower end of the wire 11 after passing through the handle 3. The medical staff can pull the pull wire 11 manually, and the self weight of the pull ring 23 can lead the part of the pull wire 11 positioned outside the handle 3 to hang down, thus preventing the pull wire 11 from being wound on other parts; in addition, the pull ring 23 prevents the lower end of the wire 11 from being retracted into the handle 3, which makes it impossible to pull the wire 11.
In this embodiment, as shown in fig. 4, a limiting groove 24 parallel to the length direction of the strip-shaped groove 16 is formed on one side wall of the strip-shaped groove 16, and a limiting rod 25 extending into the limiting groove 24 is fixed on the sliding block 17. The sliding of the limiting rod 25 in the limiting groove 24 can play a role in guiding and limiting the sliding of the sliding block 17 in the strip-shaped groove 16.
In the present embodiment, as shown in fig. 1 and 2, a rotating plate 26 perpendicular to the stud 20 is fixed to the lower end of the stud 20. The swivel plate 26 may facilitate the screwing in or out of the stud 20.
In the present embodiment, as shown in fig. 6, the rotating plate 26 has a cross shape, and the contour line thereof is formed by alternately distributing and connecting convex arcs and concave arcs. By the arrangement, the stud 20 can be conveniently rotated manually, and hands are not pressed against.
In the present embodiment, as shown in fig. 1 and 2, the outer surface of the handle 3 is wrapped with an anti-slip sleeve 27. Can prevent the handle from slipping when being held by hands.
The effect process of the uterine dilating rod for obstetrics and gynecology department is as follows:
in an initial state, the swinging rod 1 and the extension rod 2 keep a coaxial relationship, the sliding block 17 is positioned at the upper end of the strip-shaped groove 16, the front end of the stud 20 is positioned at the front end of the inner threaded hole 19, the elastic film sleeve 9 is coated on the outer surface of the expansion pipe 8, and the piston body 10 is positioned in the through hole at the upper end of the inner cavity pipe 7; before carrying out dilatation, inserting a piston body 10 into a syringe to inject liquid medicine (such as misoprostol, lubricating liquid or anesthetic and other liquid medicines for promoting cervical softening) into an inner cavity tube 7, wherein the inner cavity tube 7 is made of a water-swellable material, so that the inner cavity tube 7 swells to close a capillary hole 12, most of the liquid medicine is closed in the inner cavity tube 7, the liquid medicine bearing capacity is large, and the liquid medicine cannot be separated from a bearing mechanism in advance in the process that a dilatation stick extends into a cervical orifice;
then the medical staff manually rotates the stud 20 to make it withdraw from the inner screw hole 19, because of the matching effect of the T-shaped groove 21 and the T-shaped block 22, the stud 20 rotates without driving the driving rod 18 to rotate, but the retreating of the stud 20 can pull the driving rod 18 to retreat backwards along the axial direction of the extending rod 2, so as to pull the sliding block 17 to retreat backwards (namely to do linear motion) along the axial direction of the extending rod 2, but an included angle is formed between the strip-shaped groove 16 and the axial direction of the extending rod 2, because the ball block 4 can rotate in the spherical groove 5, the movement of the sliding block 17 can make the strip-shaped groove 16 drive the ball block 4 to rotate, so as to drive the swinging rod 1 to rotate, the purpose of angle adjustment is realized, and the adjustment operation is accurate and easy to control; the size of the adjustment angle is related to the moving distance of the driving lever 18 (stud 20), and the larger the retreat distance of the stud 20, the larger the angle of deflection of the rocking lever 1. The included angle between the swinging rod 1 and the extending rod 2 is adjusted to a proper angle (the sum of the angle and the deflection angle of the swinging rod 1 is 180 degrees) according to the operation method, and the state of the swinging rod 1 after deflection can be stably maintained because the stud 20 can be stopped at any time relative to the screwing or unscrewing of the inner screw hole 19;
then, a medical worker holds the handle 3 to stretch the swing rod 1 and the stretching rod 2 into the patient until the expanding and medicine-feeding mechanism is positioned at the cervix, in the process, the expansion tube 8 cannot expand in advance due to the protection effect of the elastic membrane sleeve 9 on the expansion tube 8, the diameter of the expanding and medicine-feeding mechanism is not influenced due to the expansion of the inner cavity tube 7 due to the existence of the cavity 13, the diameter of the expanding and medicine-feeding mechanism conforms to the expected expanding requirement, and the uterus expanding operation is facilitated; then the pull wire 11 is pulled manually to drive the piston body 10 to move downwards along the inner cavity of the inner cavity tube 7, the head of the elastic membrane sleeve 9 is pushed to move towards the lower end of the inner cavity tube 7, and the main body of the elastic membrane sleeve 9 is pulled to move upwards, so that the expansion tube 8 is exposed and directly contacted with the side wall of the cervical orifice; in the process that the piston body 10 moves downwards, the liquid medicine is pushed to extrude the capillary holes I12 to enter the cavity 13, and when the piston body 10 moves to the bottom of the inner cavity pipe 7, the piston body presses the elastic membrane sleeve 9 on the peripheral side of the piston body on the inner wall of the inner cavity pipe 7 to generate the effect of plugging the capillary holes I12, so that the liquid medicine can be prevented from flowing backwards; after the expansion tube 8 is exposed, the expansion tube absorbs moisture and expands rapidly, the space of the cavity 13 is reduced, and as the capillary hole I12 is blocked, the liquid medicine can only wash out the capillary hole II 14 and effectively acts on the cervix, so that the relaxation and expansion of the cervix can be promoted; the included angle between the swinging rod 1 and the stretching rod 2 can be adjusted again according to the needs in the expansion process of the expansion pipe 8, and meanwhile, the thickness adjustment and the angle adjustment of the uterine dilating rod are realized, and the application is convenient.
As can be seen from the above, the expanding medicine delivery mechanism of the invention can not expand in advance, and the implementation effect is consistent with the expectation, thereby facilitating the uterus dilatation operation; the liquid medicine bearing capacity of the inner cavity tube 7 is large, the inner cavity tube cannot be separated from the bearing mechanism in advance, and the medicine control condition is good; the angle adjustment operation is accurate and easy to control, the angle adjustment is facilitated at any time in the expansion process, great pain and even injury to a patient caused by excessive force can be avoided, and the application is convenient.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a gynaecology and obstetrics is with expanding palace stick, includes swinging arms (1) that connect gradually, stretches into pole (2) and handle (3), its characterized in that, swinging arms (1) lower extreme takes shape there is ball (4), stretches into pole (2) upper end and offers spherical groove (5) with ball (4) looks adaptation, spherical groove (5) top is equipped with the bore and is greater than the width of swinging arms (1) and is less than the binding off of ball (4) diameter, handle (3) with stretch into pole (2) coaxial coupling, swinging arms (1) upper end is fixed with rubber block (6), connect on rubber block (6) and send medicine mechanism with the coaxial expansion of swinging arms (1) setting, ball (4) lower part is equipped with the drive swing mechanism, handle (3) lower part is equipped with operating device;
the expanding and medicine-feeding mechanism comprises an inner cavity pipe (7) fixed on the top surface of the rubber block (6) and an expansion pipe (8) sleeved outside the inner cavity pipe (7), openings are formed in the upper ends of the inner cavity pipe (7) and the expansion pipe (8), an elastic membrane sleeve (9) is attached and wrapped on the outer surface of the expansion pipe (8), the top of the elastic membrane sleeve (9) is sunk into the openings, a piston body (10) arranged on the top of the elastic membrane sleeve (9) is arranged in each opening, the elastic membrane sleeve (9) on the peripheral side of the piston body (10) is pressed on the inner wall of the inner cavity pipe (7) by the piston body (10), a through hole is formed in the middle of the part of the top of the elastic membrane sleeve (9) below the piston body (10), and a pull wire (11); the pull wire (11) sequentially passes through the central shaft of the inner cavity pipe (7), the rubber block (6), the swinging rod (1), the stretching rod (2) and the handle (3); capillary holes I (12) are formed in the lower portion of the inner cavity tube (7) at equal intervals along the periphery of the inner cavity tube, the inner cavity tube (7) is made of a water-swellable material, a gap is reserved between the expansion tube (8) and the inner cavity tube (7) to form a cavity (13), capillary holes II (14) are uniformly distributed on the expansion tube (8), and the expansion tube (8) is made of polyvinyl alcohol;
the driving swing mechanism comprises a cone groove (15) formed in the lower portion of the ball block (4), the cone groove (15) is gradually wide from top to bottom, the diameter of the bottom of the cone groove (15) is smaller than that of the ball block (4), the top of the cone groove (15) is located in the center of the ball block (4), a strip-shaped groove (16) parallel to a bus of the cone groove is formed in one side of the cone groove (15), a sliding block (17) is connected in the strip-shaped groove (16) in a sliding mode, and a driving rod (18) which is parallel to the axial direction of the extension rod (2) and penetrates through the extension rod (2) is connected to the lower portion of the sliding block (17);
the operating mechanism comprises an inner threaded hole (19) and a stud (20), wherein the inner threaded hole (19) is embedded in the lower portion of the handle (3), the stud (20) is arranged in the inner threaded hole (19), outer surfaces of the stud (20) and side walls of the inner threaded hole (19) are correspondingly provided with outer threads and inner threads which are matched with each other, a T-shaped groove (21) is formed in the upper end of the stud (20), the lower end of the driving rod (18) penetrates through the extension rod (2) and then extends into the handle (3) and is formed with a T-shaped block (22) matched with the T-shaped groove (21), the T-shaped block (22) is clamped into the T-shaped groove (21), and the lower end of the stud (20) extends to the outer side of the handle (.
2. A uterine-dilation rod for obstetrics and gynecology department according to claim 1, wherein the lower end of the expansion tube (8) is connected to the periphery of the rubber block (6) in a threaded connection manner.
3. A cervical dilating rod for obstetrics and gynecology department according to claim 1, wherein the lower end of the pull wire (11) is connected with a pull ring (23) after passing through the handle (3).
4. The uterine dilating rod for obstetrics and gynecology department according to claim 1, wherein a limiting groove (24) parallel to the length direction of the strip-shaped groove (16) is arranged on one side wall in the strip-shaped groove (16), and a limiting rod (25) extending into the limiting groove (24) is fixed on the sliding block (17).
5. A cervical dilating rod for obstetrics and gynecology department according to claim 1, wherein a rotating plate (26) perpendicular to the stud (20) is fixed at the lower end of the stud (20).
6. A cervical dilating rod for gynaecology and obstetrics according to claim 5, characterized in that the rotating plate (26) is in a cross shape and its contour line is formed by connecting convex arcs and concave arcs alternately.
7. A uterine dilating rod for obstetrics and gynecology department according to claim 1, wherein the handle (3) is wrapped with an anti-slip sleeve (27) on the outer surface.
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| CN201811542901.8A CN109645951B (en) | 2018-12-17 | 2018-12-17 | Gynaecology and obstetrics is with expanding palace stick |
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| CN201811542901.8A CN109645951B (en) | 2018-12-17 | 2018-12-17 | Gynaecology and obstetrics is with expanding palace stick |
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| CN109645951B true CN109645951B (en) | 2021-05-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111658866B (en) * | 2020-07-03 | 2023-03-14 | 西安交通大学医学院第一附属医院 | Be used for nephrology dept peritoneal dialysis to put tub art locator |
| CN113180800B (en) * | 2021-06-17 | 2024-01-19 | 邱姣姣 | Uterine curettage device for obstetrics and gynecology department |
| CN113289220B (en) * | 2021-07-07 | 2021-12-24 | 孙井兰 | A expand palace appearance for treating gynaecology and obstetrics's uterus disease |
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