CN113288378A

CN113288378A - Safety protective delivery forceps

Info

Publication number: CN113288378A
Application number: CN202110584247.2A
Authority: CN
Inventors: 孙可雯
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-08-24

Abstract

The invention belongs to the technical field of medical instruments and discloses a pair of safety protection obstetric forceps which comprise a first forceps body and a second forceps body, wherein the inner side of a fixing stud is fixedly connected with a fixing connecting plate, a fixing nut is fixedly sleeved outside the outer end of the fixing stud, a fixing block is fixedly installed at the inner end of the fixing connecting plate, the front end of the fixing block is welded with an adjusting box, the first forceps body and the second forceps body respectively comprise a forceps head, a clamping surface of each forceps head is provided with a groove with the same size as the shape of the forceps head, and an air bag with the same shape as the groove is arranged in each groove. Through making two pincers bodies control and keep keeping less clamping-force, avoid exerting excessive clamping-force to the neonate, cause unnecessary damage to the neonate, and the gasbag can continue the pressure boost expansion, and the neonate tissue contact is more abundant, improves traction force to realized the safety protection to neonate and lying-in woman among the practise midwifery process.

Description

Safety protective delivery forceps

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a pair of safety protective obstetric forceps.

Background

The obstetric forceps are used for pulling out the live fetus, are difficult to master compared with a fetal head aspirator, and can cause the injury of mother and infant if the obstetric forceps are improperly used. At present, most when the fetal head suction is not successful, the left and right leaves are separated by applying obstetric forceps, the left leaf is held by the left hand during operation and is placed into the left side of the pelvic cavity of a lying-in woman, and the right leaf is not the same. The operation includes the steps of inserting, folding, drawing and holding down the obstetric forceps.

The obstetric forceps for obstetrics and gynecology department at present is divided into two leaves, a space with a fetal head size and a shape similar to the fetal head is formed between the two leaves, the fetal head is surrounded and protected, so that the fetal head is prevented from being extruded, a midwife holds the forceps handle, slightly pulls outwards, and assists in delivering the fetal head. However, because the skin of the neonate is delicate, the skin of the neonate is injured when the obstetric forceps clamp the neonate, sometimes the cooperation of a negative pressure tractor is needed, the negative pressure tractor sucks the head top of the neonate to pull the neonate out of an birth canal, and the negative pressure tractor can also injure an adsorption part.

The existing obstetric forceps are made of stainless steel, and are matched with each other after being buckled by left and right leaves in the combination process, the left and right leaves are not easy to identify, two edges and corners which are obvious are arranged at the lower end of a handle, secondary damage is easily caused to a lying-in woman, the handle is straight and smooth and easy to fall off, the hardness of the front part of the obstetric forceps is too large, and unnecessary damage to a newborn is easily caused. According to statistics, in all delivery modes, the probability of birth injury is highest by virtue of delivery forceps delivery assistance, wherein the birth injury of a newborn is accidental injury to the newborn in delivery or operation delivery assistance, the birth injury is caused by mechanical factors, if the delivery assistance is improper during delivery difficult, a light person can cause head and face skin abrasion of the newborn, and a heavy person can cause eyeball injury, skull fracture, craniofacial blood squeezing, facial nerve paralysis, brachial plexus nerve injury and other consequences of the newborn.

Therefore, the invention provides a pair of obstetric forceps which is high in safety performance, easy to operate and use, convenient to pull and high in safety performance.

Disclosure of Invention

The invention aims to solve the problems, and provides a pair of safety protective obstetric forceps which has the advantages that the folding angle of two leaves of the obstetric forceps can be adjusted, and the holding length can be adjusted.

In order to achieve the purpose, the invention provides the following technical scheme: a pair of safety protective delivery-assisting forceps comprises a first forceps body and a second forceps body, wherein the inner side of a fixing stud is fixedly connected with a fixing connecting plate, a fixing nut is fixedly sleeved outside the outer end of the fixing stud, a fixing block is fixedly mounted at the inner end of the fixing connecting plate, and an adjusting box is welded at the front end of the fixing block;

the first clamp body and the second clamp body respectively comprise a clamp head, a clamping surface of the clamp head is provided with a groove which is consistent with the shape and the size of the clamp head, an air bag which is consistent with the shape and the size of the groove is arranged in the groove, the air bag is fixedly connected with the bottom surface of the groove, one end of the air bag, which is close to the length adjusting plate, is connected with a first normally open electromagnetic one-way valve through two air inlet pipes which are arranged on two sides of the length adjusting groove, the other end of the first normally open electromagnetic one-way valve is connected with an inflatable bag, and the bottom of the inflatable bag is provided with a second normally open electromagnetic one-way valve;

the upper end of the adjusting box is provided with a sliding chute, sliding rails are arranged on two sides of the sliding chute, a fixed seat is connected onto the sliding rails in a sliding manner, an adjusting sliding block is fixed on the fixed seat in the sliding chute, an electromagnetic pin is embedded and fixed at the bottom of the adjusting sliding block, and a plurality of distributed clamping holes corresponding to the positions of pin shafts of the electromagnetic pin are formed in the bottom of the adjusting box;

the clamp comprises a clamp head, a clamp handle, a flexible sleeve, a variable-pitch spring, a top plate, a limit switch and a controller, wherein the bottom end of the clamp head is fixedly connected with a length adjusting plate, the middle of the length adjusting plate is provided with a length adjusting groove, the bottom end of the length adjusting plate is fixedly provided with the clamp handle, the clamp handle is of a hollow structure, one side of the clamp handle is provided with an opening and connected with the flexible sleeve, the inner wall of one side of the clamp handle, relative to the rubber sleeve, is fixedly provided with an inflatable bag, the upper end and the lower end of the inflatable bag are respectively fixedly provided with the variable-pitch spring, the other ends of the two variable-pitch springs are connected with the top plate, the top of the inner side of the clamp handle is fixedly provided with the limit switch corresponding to the top plate, and the limit switch is electrically connected with the controller;

when the top plate moves to the limit switch, the controller controls the electromagnetic pin to be opened, and the electromagnetic pin is arranged in the electromagnetic pin.

As a preferred technical scheme of the invention, when the first normally open electromagnetic one-way valve and the second normally open electromagnetic one-way valve are closed, the air bag only has a one-way circulation function, air in the air bag and the inflatable bag can not enter, when the first normally open electromagnetic one-way valve and the second normally open electromagnetic one-way valve are opened, the two-way circulation can be realized, and air in the air bag can flow back into the inflatable bag through the air inlet pipe again to realize air leakage of the air bag.

As a preferred technical scheme of the invention, an emergency switch is arranged on one side of the adjusting box, the emergency switch is started, the controller controls the electromagnetic pin to be powered off, the pin shaft of the electromagnetic pin is separated from the clamping hole, and meanwhile, the first normally-open electromagnetic one-way valve and the second normally-open electromagnetic one-way valve are opened to carry out two-way circulation to deflate the gas in the air bag and retract the gas into the groove.

As a preferable technical scheme of the invention, the air bag is inflated and then is expanded to the outside of the groove to cover the outer end of the forceps head.

As a preferred technical scheme of the invention, the outer side of the top end of the adjusting box is fixedly connected with a limiting block, the front end of the adjusting box is provided with an adjusting opening, the inside of the adjusting box is fixedly provided with a limiting rod, the limiting rod penetrates through the adjusting slider and is in sliding connection with the adjusting slider, one side of the fixing seat is provided with a fixing plate, the same sides of the fixing plate and the adjusting slider are both connected with an adjusting block through a pin shaft, the outer end of the adjusting block is welded with an adjusting connecting plate, the outer end of the adjusting connecting plate is fixedly connected with two adjusting nuts, the outer part of the middle of each adjusting nut is fixedly sleeved with a second clamp body, and the outer part of the outer end of.

As a preferred technical solution of the present invention, the two fixing studs and the fixing nuts fixedly mount the first caliper body on the fixing block.

In a preferred embodiment of the present invention, the surface of the airbag facing the opening of the groove is provided with a plurality of anti-slip ribs.

As a preferred technical scheme of the invention, the inflatable bag is made of elastic rubber.

As a preferable technical scheme of the invention, the pitch of the pitch-variable spring close to the top plate of the top plate is larger.

As a preferable technical scheme of the invention, the outer surface of the forceps head is smooth.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention realizes the quick separation and assembly of the two forceps bodies through the adjusting box, is convenient to adjust the length and the width of the obstetric forceps head through the matching of the sliding type, adapts to the placement, the folding and the traction of the obstetric forceps, simultaneously, the sliding type forceps bodies are easier to control the clamping and the position adjustment of the neonate, and the force is easy to control, thereby reducing the damage to the neonate and the pain of the puerpera.

2. According to the invention, the air bag is expanded to the outside of the groove and covers the outer end of the forceps head, so that the two forceps heads are in soft contact with the head of the neonate, the situation that the hardness of the front part of the obstetric forceps is too high and unnecessary damage to the neonate is caused is avoided, meanwhile, the soft contact improves the friction force of the forceps heads in contact with the neonate during delivery assistance, the traction force of the delivery assistance is improved, the other surface of the forceps heads is still a smooth surface and is in smooth contact with the private part of the pregnant woman, and the neonate can be smoothly pulled out during delivery assistance;

3. according to the invention, the top plate moves to the position of the limit switch to trigger the limit switch, the controller controls the electromagnetic pin to be opened, and the pin shaft of the electromagnetic pin is inserted into the clamping hole, so that the movement of the adjusting slide block is limited, the two forceps bodies do not move relatively any more, the forceps heads of the two forceps bodies keep small clamping force on a newborn, excessive clamping force on the newborn is avoided, the newborn is prevented from being damaged, the air bag can be continuously pressurized and expanded, the air bag is more fully contacted with tissues of the newborn, the traction force is improved, and the safety protection on the newborn and a puerperal in the delivery assisting process is realized.

Drawings

FIG. 1 is a schematic overall front view of the present invention;

FIG. 2 is a schematic overall rear view of the present invention;

FIG. 3 is a schematic view of the structure of the regulating box of the present invention;

FIG. 4 is a schematic view of an adjustment structure according to the present invention;

FIG. 5 is a schematic view of a first forceps body of the obstetric forceps of the present invention;

FIG. 6 is an enlarged view taken along line A of FIG. 5 according to the present invention;

FIG. 7 is a schematic view of the connection structure of the airbag of the present invention;

FIG. 8 is a schematic sectional view of the regulating box of the present invention;

FIG. 9 is a schematic view of a fixing base according to the present invention;

FIG. 10 is a cross-sectional view of the pliers shank according to the present invention;

FIG. 11 is a schematic view of the pitch spring of the present invention.

In the figure: 1. a first caliper body; 101. a binding clip; 102. a length adjustment plate; 103. a length adjustment groove; 104. a forceps handle; 105. a groove; 106. an elastic sleeve; 2. a second caliper body; 3. fixing the connecting plate; 4. fixing the stud; 5. fixing a nut; 6. a fixed block; 7. an adjustment box; 8. a limiting block; 9. an adjustment port; 10. a limiting rod; 11. a clamping hole; 12. adjusting the sliding block; 13. a fixed seat; 14. a pin shaft; 15. an adjusting block; 16. adjusting the connecting plate; 17. adjusting the nut; 18. adjusting the stud; 19. a slide rail; 20. a chute; 21. an electromagnetic pin; 22. an air bag; 23. an air inlet pipe; 24. an air-filled bag; 25. top plate, 26, pitch spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, the invention provides a pair of safety protection obstetric forceps, which comprises a first forceps body 1, wherein two fixing studs 4 are fixedly arranged in the middle of the first forceps body 1, a fixing connecting plate 3 is fixedly connected to the inner sides of the fixing studs 4, fixing nuts 5 are fixedly sleeved on the outer portions of the outer ends of the fixing studs 4, a fixing block 6 is fixedly arranged at the inner end of the fixing connecting plate 3, an adjusting box 7 is welded at the front end of the fixing block 6, a limiting block 8 is fixedly connected to the outer side of the top end of the adjusting box 7, adjusting openings 9 are respectively formed in two sides of the adjusting box 7, a limiting rod 10 is fixedly arranged in the adjusting box 7, a sliding groove 20 is formed in the upper end of the adjusting box 7, sliding rails 19 are arranged on two sides of the sliding groove 20, fixing seats 13 are slidably connected to the sliding rails 19, adjusting sliders 12 are fixed to the fixing seats 13 in the sliding grooves 20, and the limiting rods 10 penetrate through the adjusting sliders 12 and are slidably connected to the adjusting sliders 12, the direction has been confirmed for the motion of adjusting block 12 to the mutually supporting effect of slide rail 19 and spout 20 to provide the supporting role, one side of fixing base 13 is provided with the fixed plate, fixed plate and adjusting block 12 all are connected with adjusting block 15 through round pin axle 14 with one side, through promoting adjusting block 15, can drive fixing base 13 and adjusting block 12 in step and remove along stopper 10, and then adjust the distance between adjusting block 15 and the fixed block 6.

An adjusting connecting plate 16 is welded at the outer end of the adjusting block 15, two adjusting nuts 17 are fixedly connected at the outer end of the adjusting connecting plate 16, the second caliper body 2 is fixedly sleeved at the outer part of the middle of each adjusting nut 17, and an adjusting stud 18 is fixedly sleeved at the outer part of the outer end of each adjusting nut 17.

The first forceps body 1 and the second forceps body respectively comprise a forceps head 101, a length adjusting plate 102 is fixedly connected to the bottom end of the forceps head 101, a length adjusting groove 103 is formed in the middle of the length adjusting plate 102, a forceps handle 104 is fixedly mounted at the bottom end of the length adjusting plate 102, two fixing studs 4 are fixedly mounted inside the length adjusting groove 103, the first forceps body 1 and the second forceps body 2 are identical in size and shape, and the clamping length of the obstetric forceps can be adjusted by adjusting the positions of the fixing studs 4 in the length adjusting groove 103.

The first forceps body 1 is fixedly mounted on the fixing block 6 through the two fixing studs 4 and the fixing nut 5, the adjusting box 7 is a core structure of the obstetric forceps, on one hand, the adjustment of the distance between the adjusting block 15 and the fixing block 6 can be achieved through the adjusting box 7, on the other hand, in the actual obstetric work, the two forceps bodies can be conveniently and rapidly separated and assembled, the length and the width of the head of the obstetric forceps can be conveniently adjusted, and the obstetric forceps are suitable for being placed in, folded and pulled.

When the sliding type forceps is used, firstly, the first forceps body 1 is fixedly arranged on the fixed block 6 through the two fixing screw bolts 4 and the fixing nuts 5, then the first forceps body 1 and the second forceps body 2 are respectively placed into the pudendum of a pregnant woman, after the clamping state and the position of the two forceps bodies to a neonate are adjusted, the second forceps body 2 is fixedly arranged on the fixed block 15 through the two fixing screw bolts 4 and the fixing nuts 5, the two forceps bodies are folded, a medical worker adjusts the adjusting block 15 through holding a forceps handle, synchronously drives the fixed seat 13 and the adjusting slide block 12 to move along the limiting block 10, further adjusts the distance between the adjusting block 15 and the fixed block 6, further finishes the clamping traction of the neonate by the first forceps body 1 and the second forceps body 2, finishes the delivery assistance, and compared with the traditional hinged forceps body, the sliding type forceps body of the invention can more easily control the clamping and the position adjustment of the neonate, and the strength is easy to control, thereby reducing the injury to the newborn and the pain of the lying-in woman.

Example 2

In order to further reduce the injury to the newborn and the pain of the puerpera, as shown in fig. 6 and 7, a groove 105 which is the same as the shape and size of the forceps head 101 is formed on the clamping surface of the forceps head 101, an air bag 22 which is the same as the shape and size of the groove 105 is arranged in the groove 105, the air bag 22 is made of elastic material and can be automatically restored to the initial state, the air bag 22 is fixedly connected with the bottom surface of the groove 105, a plurality of anti-slip edges are arranged on the surface of the air bag 22 facing the opening of the groove 105, one end of the air bag 22 close to the length adjusting plate 102 is connected with a first normally open electromagnetic one-way valve through two air inlet pipes 23 arranged on two sides of the length adjusting groove 103, the other end of the first normally open electromagnetic one-way valve is connected with an air charging bag 24, a controller and a battery are arranged in the forceps handle 104, the controller controls the opening and closing of the first electromagnetic one-way valve, when the first normally open electromagnetic one-way valve is closed, the first normally open electromagnetic one-way valve only has a one-way circulation function, the gas can only flow into the air bag 22 and cannot flow out, when the air bag is opened, the first normally open electromagnetic one-way valve circulates in two directions, the gas in the air bag 22 can flow back into the air bag 24 through the air inlet pipe 23 again, the air bag 24 is made of rubber, the bottom of the air bag is provided with the second normally open electromagnetic one-way valve, when the second normally open electromagnetic one-way valve is closed, the air in the air bag 24 can only not flow out, when external force is applied to the air bag 24, the gas in the air bag 24 is extruded into the air inlet pipe 23 and then flows to the air bag 22, and therefore the air bag 22 is enabled to be expanded to the outside of the groove 105 to cover the outer end of the tong head 101; when the second electromagnetic one-way valve is opened, the two-way circulation is realized, and the air in the air inflation bag 24 can flow out simultaneously.

Expand recess 105 outside through gasbag 22 and cover in binding clip 101 outer end for two binding clips 101 realize soft contact with neonate's head, it is too big to avoid obstetric forceps front portion hardness, to the unnecessary damage that causes of neonate, this kind of soft contact has improved the frictional force of binding clip 101 with the contact of neonate when helping parturition simultaneously, the traction force of helping parturition has been improved, and binding clip 101 another side still is the smooth surface, and pregnant woman private parts smooth contact, make when helping parturition can pull out the neonate smoothly.

Example 3

In order to further improve the safety and reliability of the obstetric forceps, the clamping force of the obstetric forceps on the newborn needs to be controlled, the obstetric forceps in the prior art are manually controlled by medical staff, and the force is difficult to be controlled in a proper range, in this embodiment, on the basis of embodiments 1 and 2, as shown in fig. 8-11, an electromagnetic pin 21 is embedded and fixed at the bottom of an adjusting slider 12, a plurality of clamping holes 11 which are distributed corresponding to the pin positions of the electromagnetic pin 21 are arranged at the bottom of an adjusting box 7, the size of each clamping hole 11 is larger than the diameter of the pin of the electromagnetic pin 21, a hollow structure is arranged in a forceps handle 104, an elastic sleeve 106 is connected to an opening at one side of the forceps handle 104, an inflatable bag 24 is fixed on the inner wall of the forceps handle 104 relative to the rubber sleeve 106, variable-pitch springs 26 are respectively fixed on the upper end and the lower end of the inflatable bag 24 at the side, and a top plate 25 is connected to the other ends of the two variable-pitch springs 26, the top plate 25 is tightly attached to the elastic sleeve 106, the elastic sleeve 106 is opened under the action of the top plate 106, and the limit switch 28 corresponding to the position of the top plate is fixed at the top of the inner side of the forceps handle 104.

Wherein, when extrusion elastic sleeve 106 presses roof 25, roof 25 compression displacement spring 26, the pitch that displacement spring 26 is close to roof department is great, thereby the elastic coefficient of this one end is less, easily extrude elastic sleeve 106 and press roof 25 and remove, when roof 25 moves limit switch 28, trigger limit switch 28, controller control electromagnetism round pin 21 is opened, the round pin axle of electromagnetism round pin 21 inserts in calorie hole 11, thereby spacing adjustment block 12's removal, make two pincers bodies no longer take place relative movement, avoid causing unnecessary damage to the neonate.

When the clamping force is applied to the neonate by operating the clamp handle 104 during the auxiliary operation of the neonate, the elastic sleeve 106 is simultaneously extruded to press the top plate 25, so that the gas of the compressed inflatable air bag 24 is inflated to the air bag 22, the air bag 22 is expanded to the outside of the groove 105 and covers the outer end of the clamp head 101, the two clamp heads 101 are in soft contact with the head of the neonate to protect the neonate, when the clamping force is continuously applied, the top plate 25 moves to the position of the limit switch 28 to trigger the limit switch 28, the controller controls the electromagnetic pin 21 to be opened, the pin shaft of the electromagnetic pin 21 is inserted into the clamping hole 11 to limit the movement of the adjusting slide block 12, the two clamp bodies do not move relatively, the clamp heads of the two clamp bodies maintain small clamping force on the neonate, the excessive clamping force is avoided being applied to the neonate, the neonate is prevented from being damaged, and the air bag covering the outer end of the clamp head 101 can also effectively protect the neonate, when the medical staff continues to apply force to the forceps handle 104, the top plate 25 continues to move the gas for compressing the inflatable air bag 24 to inflate the air bag 22, so that the air bag 22 fully covers the forceps head 101 and is in full contact with the tissue of the neonate, the traction friction force is improved, and the air bag 22 continues to expand and is only in soft contact with the tissue of the neonate, and the tissue damage to the neonate is avoided.

When the medical personnel is in actual operation, if traction force is not enough, the inflatable bag 24 can be continuously extruded, or the elastic sleeve 106 is loosened, because of the one-way valve arranged at the bottom of the inflatable bag 24, air in the inflatable bag 24 can only enter, the inflatable bag 24 enters external air to recover, the inflatable bag 24 is extruded again, and the air can be continuously inflated in the first air bag 22, so that the expansion degree of the air bag 22 is increased, the contact with the tissue of the newborn is more sufficient, the pressure is increased, the traction friction force is improved, and the traction is convenient.

Be provided with emergency switch in regulating box one side, when two pincers bodies are loosened to needs, start emergency switch, controller control electromagnetism round pin 21 outage, the round pin axle of electromagnetism round pin 21 breaks away from card hole 11, be convenient for adjust the distance between adjusting block 15 and the fixed block 6 once more, so that binding clip 101 breaks away from with the neonate, first normally open electromagnetism check valve and second normally open electromagnetism check valve open simultaneously and carry out two-way circulation, lose heart to the gas in the gasbag 22, make gasbag 22 retract to in the recess 105, further break away from the contact with the neonate.

The invention is used as the obstetric forceps with high safety performance, easy operation and use, convenient traction and high safety performance, and the core of the realization is that: the quick separation and assembly of the two forceps bodies are realized through the adjusting box 7, the length and the width of the forceps head are convenient to adjust through the sliding type matching, the forceps head is suitable for the placing, the folding and the traction of the forceps, meanwhile, the sliding type clamp body is easier to control the clamping and the position adjustment of the neonate, the force is easy to control, thereby reducing the injury to the newborn and the pain of the lying-in woman, further expanding the air bag 22 to the outside of the groove 105 to cover the outer end of the forceps head 101 in the midwifery process, so that the two forceps heads 101 are in soft contact with the head of the neonate, the excessive hardness of the front part of the obstetric forceps is avoided, unnecessary damage to the neonate is caused, meanwhile, the soft contact improves the friction force of the contact between the forceps head 101 and the neonate during the delivery assistance, improves the traction force of the delivery assistance, the other side of the forceps head 101 is still a smooth surface and is in smooth contact with the private parts of pregnant women, so that the neonates can be smoothly pulled out during the labor-assisted delivery; further, when continuing to exert clamping-force, roof 25 moves limit switch 28 department, trigger limit switch 28, controller control electromagnetism round pin 21 is opened, the round pin axle of electromagnetism round pin 21 inserts in calorie hole 11, thereby spacing adjustment slider 12's removal, make two pincers bodies no longer take place relative movement, make the binding clip of two pincers bodies keep less clamping-force to the neonate, avoid exerting excessive clamping-force to the neonate, avoid causing the damage to the neonate, gasbag 22 can continue the pressure boost expansion, and the contact of neonate's tissue is more abundant, improve traction force, thereby realized the safety protection to neonate and lying-in woman in the practise midwifery process.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a safety protection nature practise midwifery pincers, includes first pincers body (1) and second pincers body (2), its characterized in that: the middle part of the first clamp body (1) is fixedly provided with two fixing studs (4), the inner sides of the fixing studs (4) are fixedly connected with a fixing connecting plate (3), the outer parts of the outer ends of the fixing studs (4) are fixedly sleeved with fixing nuts (5), the inner end of the fixing connecting plate (3) is fixedly provided with a fixing block (6), the front end of the fixing block (6) is welded with an adjusting box (7),

the clamp comprises a first clamp body (1) and a second clamp body (2), wherein each clamp head (101) is arranged on a clamping surface of each clamp head (101), a groove (105) which is consistent with the shape and size of each clamp head (101) is formed in each clamping surface of each clamp head, an air bag (22) which is consistent with the shape and size of each groove (105) is arranged in each groove (105), each air bag (22) is fixedly connected with the bottom surface of each groove (105), one end, close to a length adjusting plate (102), of each air bag (22) is connected with a first normally open electromagnetic one-way valve through two air inlet pipes (23) which are arranged on two sides of each length adjusting groove (103), the other end of each first normally open electromagnetic one-way valve is connected with an inflating bag (24), and a second normally open electromagnetic one-way valve is arranged at the bottom of each inflating bag (24);

the upper end of the adjusting box (7) is provided with a sliding groove (20), sliding rails (19) are arranged on two sides of the sliding groove (20), a fixed seat (13) is connected onto the sliding rail (19) in a sliding mode, an adjusting slide block (12) is fixed in the sliding groove (20) through the fixed seat (13), an electromagnetic pin (21) is embedded and fixed into the bottom of the adjusting slide block (12), and a plurality of distributed clamping holes (11) corresponding to the pin shaft positions of the electromagnetic pin (21) are formed in the bottom of the adjusting box (7);

the clamp comprises a clamp head (101), a length adjusting plate (102) is fixedly connected to the bottom end of the clamp head (101), a length adjusting groove (103) is formed in the middle of the length adjusting plate (102), a clamp handle (104) is fixedly installed at the bottom end of the length adjusting plate (102), the clamp handle (104) is of a hollow structure, an elastic sleeve (106) is connected to an opening of one side of the clamp handle (104), an inflatable bag (24) is fixed to the inner wall of one side of the clamp handle (104) relative to a rubber sleeve (106), variable-pitch springs (26) are respectively fixed to the upper end and the lower end of the inflatable bag (24) on the side of the clamp handle, a top plate (25) is connected to the other ends of the two variable-pitch springs (26), a limit switch (28) corresponding to the position of the top plate (25) is fixed to the top of the inner side of the clamp handle (104), and the limit switch is electrically connected with a controller;

when the top plate (25) moves to the limit switch (28), the controller controls the electromagnetic pin (21) to be opened, and the pin shaft of the electromagnetic pin (21) is inserted into the clamping hole (11).

2. A safety protective obstetric forceps as claimed in claim 1, wherein: first normally open electromagnetism check valve and second normally open electromagnetism check valve when closing, only have one-way circulation function, air in gasbag (22) and gas cell (24) can only advance not to go out, when first normally open electromagnetism check valve and second normally open electromagnetism check valve were opened, all can realize two-way circulation, the gas of gasbag (22) can be once more through intake pipe (23) backward flow get into gas cell (24) in, realize disappointing of gasbag (22).

3. A safety protective obstetric forceps as claimed in claim 2, wherein: adjust box (7) one side and be provided with emergency switch, start emergency switch, controller control electromagnetism round pin (21) outage, the round pin axle of electromagnetism round pin (21) breaks away from card hole (11), and the electromagnetism check valve is normally opened to first normally opening simultaneously and the second is normally opened electromagnetism check valve and is opened and carry out two-way circulation, and it contracts to recess (105) in to lose heart to the gas in gasbag (22).

4. A safety protective obstetric forceps as claimed in claim 3, wherein: the air bag (22) is inflated and then is expanded to the outside of the groove (105) to cover the outer end of the forceps head (101).

5. A safety protective obstetric forceps as claimed in claim 1, wherein: the utility model discloses a quick-witted adjusting device, including adjusting box (7), regulating box (7) and regulating box (12), the outside fixedly connected with stopper (8) on top, and the front end of regulating box (7) has seted up regulation mouth (9), the inside fixed mounting of regulating box (7) has gag lever post (10), gag lever post (10) run through regulating block (12) and with regulating block (12) sliding connection, one side of fixing base (13) is provided with the fixed plate, fixed plate and regulating block (12) all are connected with adjusting block (15) through round pin axle (14) with one side, the outer end welding of adjusting block (15) has adjustment connecting plate (16), two adjusting nut (17) of outer end fixedly connected with of adjustment connecting plate (16), the external fixation in the middle of adjusting nut (17) has cup jointed second pincers body (2), and the external fixation of adjusting.

6. A safety protective obstetric forceps as claimed in claim 1, wherein: the first clamp body (1) is fixedly arranged on a fixed block (6) through the two fixing studs (4) and the fixing nuts (5).

7. A safety protective obstetric forceps as claimed in claim 1, wherein: the surface of the air bag (22) facing the opening of the groove (105) is provided with a plurality of anti-skid edges.

8. A safety protective obstetric forceps as claimed in claim 1, wherein: the inflatable bag (24) is made of elastic rubber.

9. A safety protective obstetric forceps as claimed in claim 1, wherein: the pitch of the pitch-variable spring (26) close to the top plate (25) of the top plate is larger.

10. A safety protective obstetric forceps as claimed in claim 1, wherein: the outer surface of the forceps head (101) is smooth.