Cesarean section uterine incision positioning spreader

By designing a combination of support blocks, fitting blocks, and friction components, the problem of sliding and displacement of traditional cesarean section uterine incision positioning and dilating devices was solved, achieving stability of the retractor body and safety of surgical operation, reducing surgical difficulty and patient injury.

CN223845734UActive Publication Date: 2026-01-30核工业四一六医院
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Patent Information

Application Number
CN202522748051.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-25
Publication Date
2026-01-30
Estimated Expiration
2035-12-25

AI Technical Summary

Technical Problem

Traditional cesarean section uterine incision positioning and dilator is prone to slipping or shifting due to external force, resulting in instability of the incision, affecting the surgical field and operation accuracy, increasing the difficulty of the operation and patient injury, and prolonging the recovery period.

Method used

A cesarean section uterine incision positioning and dilating device was designed, comprising a hook body, a disassembly mechanism, and a pulling mechanism. The combination of support blocks, fitting blocks, and friction components enhances the connection stability of the hook body, and the cooperation between the fixing ring and the forearm reduces the burden on the wrist and provides stable support.

Benefits of technology

This ensures the stability of the retractor body during surgery, improves the smoothness and safety of the surgical procedure, reduces wrist fatigue, prevents loosening, and enhances surgical quality and comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a caesarean delivery uterine incision positioning dilator, which belongs to the technical field of medical instruments and comprises a drag hook body, a dismounting mechanism is arranged outside the drag hook body, and a pulling mechanism is arranged outside the dismounting mechanism. Through the combined action of the supporting block and the attaching block, especially the tight attaching of the attaching block and the inner side of the drag hook body, the connection stability between the drag hook body and the hollow block is further enhanced, the design ensures that the drag hook body does not slide or deviate accidentally in the pulling process, smooth operation of surgical operation is guaranteed, and the working efficiency is improved. Meanwhile, due to the semicircular design of the fixing ring, the fixing ring is in close contact with the forearm, stable support is provided for medical staff, the medical staff can exert force through the wrist and can exert pressure through the forearm when pulling the drag hook body, and wrist fatigue and drag hook body loosening caused by long-time force exerting are prevented.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a cesarean section uterine incision positioning and dilating device. Background Technology

[0002] The uterine incision positioning and dilating device for cesarean section is a medical device specifically used in cesarean section surgery. It is mainly used to dilate the uterine incision during the operation, providing the doctor with a clear surgical field, facilitating the delivery of the fetus, the separation of the placenta, and the suturing of the uterine incision. By providing stable incision support, it helps doctors complete the surgical operation more safely and efficiently.

[0003] However, traditional retractors are prone to slippage or displacement due to external forces, causing the incision to remain unstable and affecting the surgeon's field of vision and operational precision. This instability of medical devices not only increases the difficulty of the surgery but also causes unnecessary damage to the patient, prolonging the operation time and recovery period. Therefore, a cesarean section uterine incision positioning and dilating device is proposed. Utility Model Content

[0004] The purpose of this invention is to address the problem that existing cesarean section uterine incision positioning and dilating devices are prone to sliding or shifting due to external forces, resulting in the incision not being able to maintain a stable open state, affecting the surgeon's surgical field of vision and operational precision. This instability of medical devices not only increases the difficulty of surgery but also causes unnecessary damage to patients, prolonging the operation time and recovery period. The invention provides a cesarean section uterine incision positioning and dilating device to solve the above-mentioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0006] The present invention is as follows: a cesarean section uterine incision positioning and dilating device, comprising a hook body, a disassembly mechanism provided on the outside of the hook body, and a pulling mechanism provided on the outside of the disassembly mechanism;

[0007] The disassembly mechanism includes a hollow block slidably connected to the outside of the hook body. A support block is fixedly connected to the bottom of the hollow block, and a fitting block is fixedly connected to the bottom of the hollow block. The support block is fixedly connected to the outside of the fitting block on one side. Support blocks are fixedly connected to the outside of the hollow block on both sides. A friction assembly is installed on the inside of the hollow block.

[0008] As a preferred technical solution of this utility model, the friction assembly includes two connecting plates fixedly connected to the inside of the hollow block, and a friction pad is fixedly connected to the outside of the two connecting plates. The outside of the friction pad is in contact with the outside of the hook body.

[0009] As the technical scheme of the utility model is optimized, the two rotating columns are rotatably connected to the two sides of the outer part of the supporting block, and the connecting rods are fixedly connected to the outer part of the two rotating columns.

[0010] As the technical scheme of the utility model is optimized, the two connecting rods are fixedly connected to the outer part of one side of the supporting rod, and the sliding groove is arranged in the inner part of the supporting rod.

[0011] As the technical scheme of the utility model is optimized, the sliding block is slidably connected to the inner part of the sliding groove, the connecting block is fixedly connected to the outer part of the sliding block, and the fixing ring is fixedly connected to the outer part of the connecting block.

[0012] As the technical scheme of the utility model is optimized, the outer part of the fixing ring is in a semicircular shape and is in contact with the small arm.

[0013] As the technical scheme of the utility model is optimized, the outer part of the sliding block is in a bent shape, so that the fixing ring is kept stable after the sliding block slides into the inner part of the sliding groove.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The dismounting mechanism is arranged, the supporting block and the abutting block jointly act, especially the abutting block is closely abutted with the inner side of the hook body, the connection stability between the hook body and the hollow block is further enhanced, the design ensures that the hook body does not slide or deviate accidentally during the pulling process, the smooth operation of the operation is ensured, and the overall quality of the operation is improved.

[0016] 2. The pulling mechanism is arranged, the semicircular design of the fixing ring is closely contacted with the small arm, stable support is provided for medical staff, when the hook body is pulled, the medical staff can not only rely on the wrist force, but also can exert pressure through the small arm, the design effectively relieves the burden of the wrist, prevents the wrist fatigue and the hook body loosening caused by long-time force, and improves the comfort and safety of the operation. DRAWINGS

[0017] Figure 1 The utility model provides a structure schematic view of a cesarean section uterine incision positioning and expanding device.

[0018] Figure 2 The utility model provides a structure schematic view of an abutting block of a cesarean section uterine incision positioning and expanding device.

[0019] Figure 3 The utility model provides a structure schematic view of a friction pad of a cesarean section uterine incision positioning and expanding device.

[0020] Figure 4The utility model provides a kind of sliding block structure schematic diagram of cesarean section uterine incision positioning spreader.

[0021] Figure 5 The utility model provides a kind of sliding groove structure schematic diagram of cesarean section uterine incision positioning spreader.

[0022] In the drawing, it is indicated: 1, drag hook body;2, dismounting mechanism;21, hollow block;22, support block;23, fit block;24, support block;25, friction assembly;251, connecting plate;252, friction pad;3, pulling mechanism;31, rotating column;32, connecting rod;33, support rod;34, connecting block;35, sliding block;36, fixed ring;37, sliding groove. DETAILED DESCRIPTION

[0023] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and features of the utility model can be more easily understood by the person skilled in the art, and the protection scope of the utility model is more clearly and explicitly defined.

[0024] Embodiment: as Figures 1-5 shown, the present embodiment proposes a kind of cesarean section uterine incision positioning spreader, including drag hook body 1, the outside of drag hook body 1 is provided with dismounting mechanism 2, the outside of dismounting mechanism 2 is provided with pulling mechanism 3;

[0025] As Figure 1 , Figure 2 and Figure 3 shown, dismounting mechanism 2 includes hollow block 21 slidingly connected to the outside of drag hook body 1, which can provide support capacity, so that it can be clamped to the outside of drag hook body 1, so that the area of palm pulling can be increased by hollow block 21 when drag hook body 1 is pulled, the bottom of hollow block 21 is fixedly connected with support block 22, which can provide support capacity, the bottom of hollow block 21 is fixedly connected with fit block 23, which can provide support capacity and can be fitted with the inner side of drag hook body 1, the outside of support block 22 is fixedly connected to the outside of one side of fit block 23, the outside of both sides of hollow block 21 is fixedly connected with support block 24, which can provide support capacity, and friction assembly 25 is installed in the inner side of hollow block 21.

[0026] As Figure 3 shown, friction assembly 25 includes two connecting plates 251 fixedly connected to the inner side of hollow block 21, which can provide connection capacity, the outside of two connecting plates 251 is fixedly connected with friction pad 252, which can increase friction, and the contact between friction pad 252 and drag hook body 1 can increase friction by the support of connecting plate 251, and the outside of friction pad 252 is in contact with the outside of drag hook body 1.

[0027] As Figure 1、 Figure 2 、 Figure 4 and Figure 5 As shown in

[0028] As shown in Figure 2 and Figure 5 The outer side of the two connecting rods 32 is fixedly connected with a supporting rod 33, which can provide supporting ability, and the inner side of the supporting rod 33 is provided with a sliding groove 37, which can provide sliding space.

[0029] As shown in Figure 4 The inner side of the sliding groove 37 is slidably connected with a sliding block 35, which can provide sliding ability, so that it can be conveniently disassembled in the inner side of the supporting rod 33, and the outer side of the sliding block 35 is fixedly connected with a connecting block 34, and the outer side of the connecting block 34 is fixedly connected with a fixing ring 36, which can provide fixing ability.

[0030] As shown in Figure 4 The outer side of the fixing ring 36 is semicircular, and is in contact with the small arm, when the medical staff pulls the hollow block 21, the hook body 1 is pulled to be positioned and expanded by the wrist force, and the small arm passes through the inner side of the fixing ring 36, so that the medical staff can not only use the wrist force when pulling, but also can press the fixing ring 36 when the small arm forces, and then when the hook body 1 moves backward, the small arm tilts forward by pressing the fixing ring 36, so that the wrist force can be saved, and the loosening of the hook body 1 caused by long-time wrist pulling is prevented.

[0031] As shown in Figure 4 The outer side of the sliding block 35 is bent, so that it can be stably retained in the inner side of the sliding groove 37, and the fixing ring 36 can be quickly disassembled after use.

[0032] Working principle: the utility model provides a cesarean section uterine incision positioning expander, first, the hook body 1 is placed in the uterine incision, so that it can preliminarily expand the incision. At this time, the hollow block 21 is closely matched with the hook body 1 through the inner friction assembly 25 (as Figure 3As shown in the figure, the friction pad 252 is in contact with the hook body 1 under the support of the connecting plate 251, and generates sufficient friction force, so that the hollow block 21 can be stably clamped on the outside of the hook body 1. So that in the subsequent pulling process, the hollow block 21 can serve as an effective support point, increasing the contact area when the palm pulls the hook body 1, facilitating the doctor to operate more stably and powerfully. At the same time, the support block 22 and the fitting block 23 work together, and the fitting block 23 is closely fitted with the inner side of the hook body 1 (as shown in the figure) Figure 2 As shown in the figure, further enhancing the connection stability between the hook body 1, ensuring that the hook body 1 will not slide or deviate accidentally during the pulling process, ensuring the smooth operation of the operation;

[0033] When the position of the hook body 1 needs to be adjusted, the medical staff will put the small arm through the inside of the fixed ring 36, and the semicircular design of the fixed ring 36 can closely contact with the small arm, providing stable support for the medical staff. Then, the medical staff pulls the hollow block 21 with force through the wrist, at this time the hook body 1 starts to move backward, realizing the positioning and opening of the uterine incision. During the pulling process, the medical staff can not only rely on the wrist force, but also can press the fixed ring 36 through the small arm (as shown in the figure) Figure 4 When the small arm presses the fixed ring 36, the fixed ring 36 will tilt forward, which makes the medical staff can exert force on the small arm while reducing the burden on the wrist, preventing the hook body 1 from loosening due to long-time wrist force, thereby improving the stability and safety of the operation. When the hook body 1 needs to be disassembled, the medical staff can slide the sliding block 35 in the sliding groove 37 (as shown in the figure) Figure 5 The fixed ring 36 can be quickly disassembled from the hook body 1. The bending design of the sliding block 35 can keep the stable support of the fixed ring 36 after sliding into the sliding groove 37, ensuring the convenience of operation during disassembly.

[0034] All the technical features in the embodiment can be freely combined according to actual needs.

[0035] The above embodiment is the preferred implementation scheme of the present application, in addition to this, the present application can be realized in other ways, without departing from the technical scheme concept, any obvious replacement is within the protection scope of the present application.

Claims

1. A uterine incision positioning and dilator for caesarean section comprising a retractor body (1) characterised in that, The outer part of the draw hook body (1) is provided with a dismounting mechanism (2), and the outer part of the dismounting mechanism (2) is provided with a pulling mechanism (3); The dismounting mechanism (2) comprises a hollow block (21) which is slidingly connected to the outer part of the draw hook body (1), the bottom of the hollow block (21) is fixedly connected with a supporting block (22), the bottom of the hollow block (21) is fixedly connected with a fitting block (23), the outer part of the supporting block (22) is fixedly connected to the outer part of one side of the fitting block (23), the outer parts of both sides of the hollow block (21) are fixedly connected with supporting blocks (24), and the inner side of the hollow block (21) is provided with a friction assembly (25).

2. A uterine incision positioning and distraction device for caesarean section according to claim 1, wherein, The friction assembly (25) comprises two connecting plates (251) which are fixedly connected to the inner side of the hollow block (21), the outer parts of the two connecting plates (251) are fixedly connected with friction pads (252), and the outer part of the friction pad (252) is in contact with the outer part of the draw hook body (1).

3. The uterine incision positioning and distraction device of claim 1, wherein, The pulling mechanism (3) comprises two rotating columns (31) which are rotatably connected to the outer parts of both sides of the supporting block (24), and the outer parts of the two rotating columns (31) are fixedly connected with connecting rods (32).

4. A uterine incision positioning and distraction device for caesarean section according to claim 3, wherein, The outer part of one side of the two connecting rods (32) is fixedly connected with a supporting rod (33), and the inner part of the supporting rod (33) is provided with a sliding groove (37).

5. A uterine incision positioning and distraction device for caesarean section according to claim 4, wherein, The inner part of the sliding groove (37) is slidingly connected with a sliding block (35), the outer part of the sliding block (35) is fixedly connected with a connecting block (34), the outer part of the connecting block (34) is fixedly connected with a fixing ring (36).

6. A uterine incision positioning and distraction device for caesarean section according to claim 5, wherein, The outer part of the fixing ring (36) is in a semicircular shape and is in contact with the small arm.

7. A uterine incision positioning and distraction device for caesarean section according to claim 6, wherein, The outer part of the sliding block (35) is in a bent shape, so that the fixing ring (36) is kept stable after the sliding block (35) slides into the inner part of the sliding groove (37).