CN215458507U

CN215458507U - Delivery-assisting forceps

Info

Publication number: CN215458507U
Application number: CN202121669758.6U
Authority: CN
Inventors: 郑建琼; 鲁意; 胡仙清; 陈凌翔; 黄志琼
Original assignee: Wenzhou Peoples Hospital
Current assignee: Wenzhou Peoples Hospital
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-01-11
Anticipated expiration: 2031-07-21

Abstract

The utility model discloses a pair of childbirth forceps, which is characterized by comprising an operating rod and a pair of forceps arms, wherein the forceps arms are connected with forceps blades, the operating rod is provided with a first groove, a rack is arranged in the first groove, the first groove is provided with a through groove, an adjusting gear is rotatably connected in the through groove, one side of the adjusting gear extends out of the operating rod, one end of the rack is connected with a fixed block, the fixed block is hinged with a hinged rod, one end of the fixed block is provided with a feedback device, the feedback device comprises a contact rod, one end of the contact rod is provided with a contact piece, and the operating rod is provided with a locking device for locking and limiting the rack. The utility model provides the delivery forceps which are labor-saving in operation and stable in clamping process by means of a mechanical structure.

Description

Delivery-assisting forceps

Technical Field

The utility model relates to the field of medical instruments for childbirth, in particular to a pair of delivery forceps.

Background

The delivery forceps are an instrument which can be used for assisting a parturient to deliver a baby, and are usually tools which can be used by a doctor to help the pregnant woman to deliver the baby in a proper delivery manner when the pregnant woman has difficulty in delivering the baby in the proper delivery manner. When the pregnant woman and the child have difficulty, the doctor can use the childbirth assisting forceps, the two sides of the childbirth assisting forceps clamp the child to obtain the head, the child is slightly pulled outwards from the uterus of the pregnant woman, and the child is assisted to be delivered. If the manipulation is proper, the position of the delivery forceps is proper, and the fetus is not damaged. When the uterus contracts and is weak, the second labor stage is prolonged; or the lying-in women suffer from some diseases and should not exert excessive force in the second stage of labor; or the fetus lacks oxygen in the uterus, the doctor recommends to use the delivery forceps to assist delivery.

The delivery-assisting forceps are divided into two leaves, and a space similar to the shape of a fetal head is formed between the two leaves. The fetal head is surrounded and protected to prevent the fetal head from being squeezed. The existing delivery forceps have a single function, the opening and closing angles of the two leaves are inconvenient to adjust, the situation that hands of a doctor are easy to fatigue due to long delivery time is caused, and the distance between the two leaves of the delivery forceps cannot be stably maintained and adjusted in the actual use process, so that the head of a baby is damaged in the clamping process, and the pain of a parturient is increased, and therefore a delivery forceps is urgently needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a pair of delivery forceps which is labor-saving in operation and stable in clamping process.

In order to achieve the purpose, the utility model provides the following technical scheme: a pair of delivery-assisting forceps comprises an operating rod and a pair of forceps arms hinged to the operating rod respectively, the pair of forceps arms are symmetrically arranged on two sides of the operating rod respectively, one end, far away from the operating rod, of each forceps arm is fixedly connected with a forceps blade, a first groove is formed in the operating rod, a rack with teeth on one side is arranged in the first groove, the rack is connected with the first groove in a sliding mode, a through groove communicated with the external environment is formed in the side wall of the first groove, an adjusting gear meshed with the rack is rotationally connected in the through groove, the part, far away from one side of the rack, of the adjusting gear extends out of the operating rod, one end, extending out of the first groove, of the rack is fixedly connected with a fixed block, a pair of hinged rods is hinged to two sides of the fixed block respectively, the pair of hinged rods are hinged to the forceps arms on the same side of the hinged rods respectively, and a feedback device for driving the two forceps arms to approach each other is fixedly arranged at one end, far away from the rack, of the fixed block, the feedback device comprises a contact rod fixedly connected with the fixed block, and one end of the contact rod, which is far away from the fixed block, is fixedly provided with a contact piece which is used for being abutted against the head of the infant;

and the operating rod is provided with a locking device for locking and limiting the rack.

The utility model is further configured to: the adjusting gear and the operating rod are both provided with a square locking hole in a penetrating mode, the hole surface of the locking hole is matched with the locking device, and the locking hole can be used for locking the adjusting gear after the locking device penetrates through the locking hole to limit the rotation of the adjusting gear.

The utility model is further configured to: the locking device comprises an elastic clamping hook, a square rod body, a pull rod and a pull ring which are sequentially connected, wherein a baffle plate used for abutting against the outer surface of the operating rod is arranged around the outer periphery of the pull rod.

The utility model is further configured to: the number of the elastic clamping hooks is two and is symmetrically arranged along the axis of the rod body.

The utility model is further configured to: one end of the operating rod, which is far away from the forceps arms, is provided with an operating part for hand operation, and the surface of the operating part is provided with corrugated anti-skid grains.

In conclusion, the utility model has the following beneficial effects: the distance between the clamp blades is adjusted by adjusting the opening and closing angle between the clamp arms by rotating the adjusting gear part positioned at the outer side of the operating rod. When the distance between the pincers leaves needs to be increased, the adjusting gear is rotated to drive the rack located in the operating rod to slide along the forward direction of the first groove through the meshing relation, so that the fixed block fixedly connected with the rack moves forwards, each hinged rod on the fixed block swings, the opening and closing angle between the pincers arms connected with the hinged rods is increased, the pincers leaves are opened, and the effect of increasing the distance between the pincers leaves is achieved.

When the distance between the clamp leaves needs to be reduced, the adjusting gear rotates reversely, so that the rack moves backwards, the rack drives each hinged rod on the fixed block to swing reversely, the opening and closing angle between the clamp arms connected with the hinged rods is reduced, the clamp leaves shrink, and the effect of reducing the distance between the clamp leaves is achieved.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a cross-sectional view of a use state of the present invention;

FIG. 3 is a cross-sectional view of another embodiment of the present invention;

FIG. 4 is a partial schematic structural view of the operating lever and the locking device in the locked condition of the present invention;

fig. 5 is a partial structural schematic view of the operating lever and the locking device during unlocking according to the present invention.

Reference numerals: 1. an operating lever; 2. a clamp arm; 3. clamping leaves; 4. a first groove; 5. a rack; 6. a through groove; 7. an adjusting gear; 8. a fixed block; 9. a contact lever; 10. a contact member; 11. a locking hole; 12. an elastic hook; 13. a rod body; 14. a pull rod; 15. a pull ring; 16. a baffle plate; 19. an operation section; 20. a hinged lever.

Detailed Description

As shown with reference to figures 1-5,

a pair of delivery-assisting forceps comprises an operating rod 1 and a pair of forceps arms 2 respectively hinged with the operating rod 1, wherein the pair of forceps arms 2 are symmetrically arranged at two sides of the operating rod 1, one end of each forceps arm 2, which is far away from the operating rod 1, is fixedly connected with a forceps blade 3, a first groove 4 is formed in the operating rod 1, a rack 5 with teeth at one side is arranged in the first groove 4, the rack 5 is in sliding connection with the first groove 4, a through groove 6 communicated with the external environment is formed in the side wall of the first groove 4, an adjusting gear 7 meshed with the rack 5 is rotatably connected in the through groove 6, the adjusting gear 7 is made of a plastic material, one side part, which is far away from the rack 5, of the adjusting gear 7 extends out of the operating rod 1, one end, which extends out of the first groove 4, of the rack 5 is fixedly connected with a fixed block 8, two sides of the fixed block 8 are respectively hinged with a pair of hinge rods 20 at the same side, the pair of the hinge rods 20 are respectively hinged with the forceps arms 2, a feedback device for driving the two forceps arms 2 to approach each other is fixedly arranged at one end of the fixed block 8 far away from the rack 5, the feedback device comprises a contact rod 9 fixedly connected with the fixed block 8, and a contact piece 10 for abutting against the head of the infant is fixedly arranged at one end of the contact rod 9 far away from the fixed block 8; the operating rod 1 is provided with a locking device for locking and limiting the rack 5.

The utility model can adjust the opening and closing angle between the clamp arms 2 to adjust the distance between the clamp leaves 3 by rotating the adjusting gear 7 part positioned at the outer side of the operating rod 1 according to the specific use condition. When the distance between the pincers leaves 3 needs to be increased, the rack 5 located in the operating rod 1 is driven by the rotation adjusting gear 7 through the meshing relation to slide along the forward direction of the first groove 4, so that the fixing block 8 fixedly connected with the rack 5 moves forwards, each hinge rod 20 on the fixing block 8 swings, the opening and closing angle between the pincers arms 2 connected with the hinge rods 20 is increased, the pincers leaves 3 are opened, and the effect of increasing the distance between the pincers leaves 3 is achieved.

When the distance between the clamp leaves 3 needs to be reduced, the adjusting gear 7 rotates reversely, so that the rack 5 moves backwards, the rack 5 drives the hinge rods 20 on the fixing block 8 to swing reversely, the opening and closing angle between the clamp arms 2 connected with the hinge rods 20 is reduced, the clamp leaves 3 contract, and the effect of reducing the distance between the clamp leaves 3 is achieved.

Through being provided with feedback device, when tong arm 2 stretched into the vagina, conflict piece 10 among the feedback device contacted with baby's head, make contact bar 9 and fixed block 8 that link to each other with conflict piece 10 can't continue to stretch into to the vagina, if action bars 1 continues to move forward, make rack 5 carry out reverse slip in first recess 4, rack 5 drives each articulated arm 20 reverse swing on the fixed block 8, make two tong arms 2 that link to each other with articulated arm 20 drive the pincers leaf 3 and be close to each other, pincers leaf 3 carries out the centre gripping to baby, in order to realize the automatic effect of contracting pincers leaf 3 centre gripping baby of feedback device. It should be noted that: the contact element 10 is made of a flexible material with a skin, such as medical silica gel, and the friction between the rack 5 and the operating rod 1 is very small and negligible. Therefore, when the abutting member 10 contacts with the head of the infant, the external force applied to the abutting member 10 by the head of the infant does not need to be large, and the rack 5 can be driven to slide relative to the operating rod 1.

Furthermore, the adjusting gear 7 and the operating rod 1 are both provided with a square locking hole 11 in a penetrating mode, the hole surface of the locking hole 11 is matched with the locking device, the locking hole 11 can be used for locking the adjusting gear 7 after the locking device penetrates through the locking hole to limit the rotation of the adjusting gear, and therefore the locking device can lock and limit the rack 5 when the clamp leaves 3 are clamped tightly, the clamp leaves 3 are prevented from being separated in the follow-up drawing process, and the clamping stability in the follow-up drawing process is improved.

Further, the locking device comprises an elastic hook 12, a square rod 13, a pull rod 14 and a pull ring 15 which are connected in sequence, and a baffle 16 for abutting against the outer surface of the operating rod 1 is arranged around the outer periphery of the pull rod 14.

Furthermore, the number of the elastic hooks 12 is two, and the two elastic hooks are symmetrically arranged along the axis of the rod body 13. The pair of elastic hooks 12 is used for hooking the outer surface of the other side of the operating rod 1.

After the elastic clamping hook 12 is embedded into the locking hole 11 by pressing, the pull rod 14 and the pull ring 15 are pushed to drive the rod body 13 and the elastic clamping hook 12 to slide along the inner wall of the locking hole 11 until the elastic clamping hook 12 passes through the locking hole 11, the elastic clamping hook 12 springs open the outer surface of the other side of the tightly hooked operating rod 1, the square rod body 13 is matched with the square locking hole 11, the adjusting gear 7 is locked, the rotation of the adjusting gear is limited, the locking limit of the locking device can be realized, meanwhile, the baffle 16 is abutted to the outer surface of the operating rod 1, and the baffle 16 is arranged to avoid the displacement of the locking device under the condition of no external force.

When the locking device needs to be released, a user presses the elastic hook 12 on the other side of the operating rod 1 by hand and inserts the elastic hook into the locking hole 11, then pulls the pull ring 15, and drives the rod body 13 and the elastic hook 12 to be completely separated from the locking hole 11 through the pull rod 14, so that the locking device is released.

Furthermore, an operating part 19 for hand operation is arranged at one end of the operating rod 1, which is far away from the forceps arm 2, and the surface of the operating part 19 is provided with corrugated anti-slip lines, so that the friction force between the operating part 19 and the hand of a user is increased, the hand is prevented from falling off, and the operation is convenient.

The use process of the utility model is as follows: firstly, a user holds the operating part 19 of the operating rod 1 by one hand, after the forceps leaves 3 and the forceps arms 2 extend into the vagina, the other hand rotates the adjusting gear 7 to enable the rack 5 meshed with the adjusting gear 7 to slide forwards relative to the operating rod 1, so that the fixed block 8 fixedly connected with the rack 5 moves forwards, each hinged rod 20 on the fixed block 8 swings, the two forceps leaves 3 are gradually opened, the operating rod 1 is held by the hand to move forwards continuously after the distance between the forceps leaves 3 is adjusted, and the touch part 10 on the contact rod 9 is contacted with the head of a baby. Then, the operating rod 1 is continuously moved forwards, the rack 5 slides backwards, meanwhile, the clamp leaves 3 are close to the closed clamping baby to realize clamping, then the elastic clamping hook 12 is pressed to be embedded into the locking hole 11, the pull rod 14 and the pull ring 15 are pushed inwards until the elastic clamping hook 12 bounces to hook the outer surface of the other side of the operating rod 1 tightly, the locking of the locking device on the rack 5 is limited, the stability of the clamping process is kept, and the head of the baby is conveniently pulled. Finally, the operating rod 1 is moved backwards to drive the baby to be separated from the pregnant woman, and the locking of the rack 5 can be released only by pressing the elastic clamping hook 12 and pulling the pull ring 15. The adjusting gear 7 rotates reversely to drive the rack 5 to slide forwards, the distance between the clamp leaves 3 is increased, the clamping of the baby is released, and the midwifery work is completed.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. A pair of delivery forceps, which is characterized in that: the clamp comprises an operating rod (1) and a pair of clamp arms (2) hinged with the operating rod (1), wherein the pair of clamp arms (2) are symmetrically arranged on two sides of the operating rod (1), one end, far away from the operating rod (1), of each clamp arm (2) is fixedly connected with a clamp leaf (3), a first groove (4) is formed in the operating rod (1), a rack (5) with one side provided with teeth is arranged in the first groove (4), the rack (5) is in sliding connection with the first groove (4), a through groove (6) communicated with the external environment is formed in the side wall of the first groove (4), an adjusting gear (7) meshed with the rack (5) is rotatably connected with the through groove (6), one side part, far away from the rack (5), of the adjusting gear (7) extends out of the operating rod (1), and one end, extending out of the first groove (4), of the rack (5) is fixedly connected with a fixed block (8), a pair of hinged rods (20) is hinged to two sides of the fixed block (8) respectively, the pair of hinged rods (20) is hinged to the forceps arms (2) on the same side of the hinged rods respectively, a feedback device for driving the two forceps arms (2) to approach each other is fixedly arranged at one end, far away from the rack (5), of the fixed block (8), the feedback device comprises a contact rod (9) fixedly connected with the fixed block (8), and a contact piece (10) for abutting against the head of a baby is fixedly arranged at one end, far away from the fixed block (8), of the contact rod (9);

and the operating rod (1) is provided with a locking device for locking and limiting the rack (5).

2. A pair of delivery forceps as claimed in claim 1, wherein: adjusting gear (7) and action bars (1) all run through and have same square locking hole (11), locking hole (11) hole face and locking device phase-match, locking hole (11) can supply locking device to pass the back and lock adjusting gear (7), restrict its rotation.

3. A pair of delivery forceps as claimed in claim 2, wherein: the locking device comprises an elastic clamping hook (12), a square rod body (13), a pull rod (14) and a pull ring (15) which are sequentially connected, wherein a baffle (16) which is used for abutting against the outer surface of the operating rod (1) is arranged around the outer periphery of the pull rod (14).

4. A pair of delivery forceps as claimed in claim 3, wherein: the number of the elastic clamping hooks (12) is two and the two elastic clamping hooks are symmetrically arranged along the axial lead of the rod body (13).

5. A pair of delivery forceps as claimed in claim 1, wherein: an operation part (19) for hand operation is arranged at one end, far away from the forceps arms (2), of the operation rod (1), and corrugated anti-slip lines are arranged on the surface of the operation part (19).