A detachable cerclage simulation teaching model

Abstract

The utility model relates to the field of cervical cerclage operation simulation teaching supplies, disclose a kind of detachable cervical cerclage operation simulation teaching model, including outer cover, and the upper portion of the front side of outer cover is equipped with operating port, and the inner wall of outer cover is fixedly installed with inner bag, and the rear side of inner bag is fixedly installed with replacement assembly by dismounting component;Replacement assembly includes the installation cover inserted in the inner wall of inner bag, and the front side middle part of installation cover is fixedly connected with abutment piece, and the front side of abutment piece is in abutment with simulation piece, and simulation piece is inserted in the inner wall of inner bag and outer cover, and installation cover is inserted with replacement piece evenly on the left and right sides close to abutment piece.The utility model in the present application, model is designed by modularization, uses dismounting component, can replace simulation piece and multiple replacement pieces according to the teaching needs, so that trainee practices cerclage operation under multiple clinical scenes on the same model, without preparing model separately for different cases, greatly improve training efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cervical cerclage simulation teaching products, and in particular to a detachable cervical cerclage simulation teaching model. Background Technology

[0002] In the field of obstetrics and gynecology, cervical insufficiency is a significant cause of miscarriage and premature birth, and cervical cerclage, as an effective treatment for this condition, is of paramount importance. Cervical cerclage is divided into prophylactic cervical cerclage and emergency cervical cerclage. The former is usually performed between 12 and 24 weeks of gestation for pregnant women at risk of cervical insufficiency to prevent adverse pregnancy outcomes; the latter is performed in emergency situations where cervical dilation is detected before labor begins. This procedure effectively prevents the relaxation and dilation of the internal cervical os, prolongs gestation, and prevents miscarriage and premature birth.

[0003] Existing teaching models are mostly fixed structures, which cannot adjust the cervical state according to teaching needs, such as normal cervix, relaxed cervix, shortened cervix, etc. They are also difficult to simulate complex clinical scenarios such as bladder fullness and abnormal rectal position. Trainees can only practice a single operation on the same model. If different cases need to be trained, multiple sets of models need to be prepared, which not only increases teaching costs but also reduces training efficiency. Therefore, a detachable cervical cerclage simulation teaching model is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a detachable cervical cerclage simulation teaching model, which aims to improve the problem that "existing teaching models have fixed structures and single scenarios, and cannot flexibly adjust the cervical state or simulate complex clinical scenarios, resulting in low training efficiency".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a detachable cervical cerclage simulation teaching model, including an outer cover, an operation port on the upper front side of the outer cover, an inner liner fixedly installed on the inner wall of the outer cover, and a replacement component fixedly installed on the rear side of the inner liner through a disassembly assembly;

[0006] The replacement component includes a mounting cover that is inserted into the inner wall of the inner liner. An abutment is fixedly connected to the center of the front side of the mounting cover. A simulation component is abutted against the front side of the abutment. The simulation component is inserted into the inner wall of the inner liner and the outer liner. Replacement components are evenly inserted into the left and right sides of the mounting cover near the abutment. Pressure regulating components are fixedly installed on the upper and lower sides of the inner liner near the simulation component. A connecting pipe is fixedly connected to the rear side of the pressure regulating component.

[0007] As a further description of the above technical solution: the disassembly assembly includes a connecting rod, which is slidably connected to the inner wall of the mounting cover. Multiple sets of connecting rods are provided, and the multiple sets of connecting rods are symmetrically arranged. An operating component is fixedly connected to one side of the multiple sets of connecting rods. The operating component slides on the inner wall of the groove on the rear side of the mounting cover. A plug-in post is fixedly connected to the opposite side of the multiple sets of connecting rods. The plug-in post is inserted into the inner wall of the inner liner. A spring is sleeved on the outer side of the connecting rod.

[0008] As a further description of the above technical solution: one end of the spring abuts against the inner wall of the mounting cover, and the other end of the spring abuts against the outer side of the insertion post.

[0009] As a further description of the above technical solution: two sets of grooves are symmetrically opened on the rear side of the mounting cover.

[0010] As a further description of the above technical solution: the simulation part and the replacement part are bent.

[0011] As a further description of the above technical solution: the outer casing, the simulation part, and the replacement part are all made of silicone.

[0012] As a further description of the above technical solution: the front side of the abutment member is provided with an installation groove.

[0013] As a further description of the above technical solution: a through groove is provided in the middle of the operating component.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the model is modularly designed and uses disassembled components. The simulation parts and multiple sets of replacement parts can be quickly replaced according to teaching needs, allowing trainees to practice cerclage operations in various clinical scenarios on the same model. There is no need to prepare separate models for different cases, which greatly improves training efficiency.

[0016] 2. In this utility model, the pressure regulating component can adjust the internal pressure through the connecting tube to simulate the physiological pressure environment inside the uterus, allowing trainees to practice key operations such as suturing force and angle under near-realistic force feedback, thereby strengthening their control over surgical details. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0018] Figure 2 This is a rear view of the three-dimensional structure of the overall device in this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the disassembled integral device in this utility model;

[0020] Figure 4 This is a right-side three-dimensional cross-sectional view of the inner liner of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the disassembly component in this utility model.

[0022] Legend:

[0023] 1. Outer shell; 2. Operating port; 3. Inner liner; 4. Replacement component; 41. Mounting cover; 42. Abutment; 43. Simulation component; 44. Replacement component; 45. Pressure regulating component; 46. Connecting pipe; 5. Disassembly component; 51. Connecting rod; 52. Operating component; 53. Insertion post; 54. Spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-3 This utility model provides an embodiment of a detachable cervical cerclage simulation teaching model, including an outer shell 1, which serves as the external frame of the model, simulating the shape and structure of the human waist, abdomen, and perineum, and providing installation support for internal components. An operating port 2 is provided on the upper front side of the outer shell 1, replicating the position of the vaginal entrance, providing trainees with an intuitive surgical field of view and operating space, facilitating the simulation of the clinical scenario of cervical cerclage through the vagina. An inner liner 3, made of plastic, is fixedly installed on the inner wall of the outer shell 1, serving as the supporting skeleton of the outer shell 1. A replacement component 4 is fixedly installed on the rear side of the inner liner 3 via a detachable component 5. The replacement component 4 includes an installation cover 41 inserted into the inner wall of the inner liner 3, used to close the inner liner 3, forming a storage space inside the inner liner 3, facilitating the storage of multiple sets of replacement parts 44. An abutment 42 is fixedly connected to the middle front side of the installation cover 41, and an installation groove is provided on the front side of the abutment 42. The abutment 42 supports and compresses the simulation part 43 through the installation groove, and the front side of the abutment 42 abuts against the simulation part 43. The simulation part 43 is inserted into the inner liner 3 and the inner wall of the outer shell 1.

[0026] Reference Figure 4 and Figure 5Replacement pieces 44 are evenly inserted into the left and right sides of the mounting cover 41 near the abutment piece 42. The front of the simulation piece 43 and the replacement pieces 44 are hollow, simulating the vaginal and cervical structure of the patient. They are the direct objects of the cerclage operation. Through multiple sets of replacement pieces 44, different versions of the state can be changed according to teaching needs, including normal cervix, cervical relaxation, cervical shortening, cervical laceration, etc., allowing students to practice cerclage techniques under different pathological states. Pressure regulating pieces 45, which are rubber air balloons, are fixedly installed on the upper and lower sides of the inner liner 3 near the simulation piece 43. They simulate the physiological pressure environment inside the uterus, allowing students to practice key operations such as suturing strength and angle under near-real force feedback, and strengthen their control over surgical details. A connecting tube 46 is fixedly connected to the rear side of the pressure regulating piece 45. A sealing cap is set on the rear side of the connecting tube 46 to stabilize the air pressure in the pressure regulating piece 45. Two sets of grooves are symmetrically opened on the rear side of the mounting cover 41 for easy gripping by the user.

[0027] Reference Figure 4 and Figure 5 The disassembly assembly 5 includes connecting rods 51, which are slidably connected to the inner wall of the mounting cover 41. Multiple sets of connecting rods 51 are provided, symmetrically arranged, to transmit the external force of the operating component 52 to the insertion post 53, thereby enabling the extension and retraction of the insertion post 53. The operating component 52 is fixedly connected to the opposite side of the multiple sets of connecting rods 51. A through groove is provided in the middle of the operating component 52. The user can pull the operating component 52 through the through groove to simultaneously drive the multiple sets of connecting rods 51 and the insertion post 53 to move, simplifying the disassembly steps and improving the efficiency of component replacement. The operating component 52 slides on the inner wall of the groove on the rear side of the mounting cover 41. The insertion post 53 is fixedly connected to the opposite side of the multiple sets of connecting rods 51, which is the "lock" that fixes the mounting cover 41 to the inner liner 3. When the insertion post 53 is inserted into the interface of the inner liner 3, the mounting cover 41 is fixed; when the operating component 52 pulls it to retract and disengage from the interface, the mounting cover 41 can be disassembled.

[0028] Reference Figure 4 and Figure 5 The insertion post 53 is inserted into the inner wall of the inner liner 3. A spring 54 is sleeved on the outside of the connecting rod 51. One end of the spring 54 abuts against the inner wall of the mounting cover 41, and the other end of the spring 54 abuts against the outside of the insertion post 53. Through elastic deformation, it provides continuous thrust, so that the insertion post 53 always remains in the extended state, ensuring a stable connection between the mounting cover 41 and the inner liner 3. The simulation part 43 and the replacement part 44 are bent. Their bending angle simulates the natural curvature of the cervix and vagina, enhancing the realism of the operation. The outer cover 1, the simulation part 43 and the replacement part 44 are all made of silicone. The softness and toughness of silicone can accurately reproduce the texture of cervical tissue. Moreover, the surface of silicone is smooth and has a certain tension, which can withstand the puncture of the suture needle and the pulling of the suture, making it suitable for trainees to practice circumferential suturing multiple times.

[0029] Working principle: When in use, trainees practice cerclage through the operating port 2. The simulation part 43 is used as the operation object. The cervix part in the simulation part 43 is pulled out of the body by cervical forceps. Its silicone material simulates the touch of the cervix and can withstand the puncture and traction of suture needles. If different clinical scenarios need to be simulated, such as when the bladder is overfilled, the parts can be quickly replaced by disassembling component 5.

[0030] By inserting a finger into the through slot of the operating component 52 and pulling it inward, the connecting rod 51 drives the plug pin 53 to compress the spring 54 and disengage from the inner wall of the inner liner 3, thus removing the mounting cover 41. After replacing the corresponding replacement component 44, the mounting cover 41 is reinserted into the inner wall of the inner liner 3. The operating component 52 is then released, and the spring 54 resets, causing the plug pin 53 to embed into the inner wall of the inner liner 3, thus achieving fixation.

[0031] Meanwhile, the pressure regulating component 45 is connected to an external air source through the connecting pipe 46, which can adjust the internal air pressure to simulate the physiological pressure inside the uterus. The sealing cap can maintain stable air pressure and ensure that the feedback effect is continuous and reliable.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A detachable cerclage simulation teaching model of cervix, comprising a sheath (1), characterized in that: The outer cover (1) upper front side is provided with an operation port (2), the inner wall of the outer cover (1) is fixedly installed with an inner container (3), the rear side of the inner container (3) is fixedly installed with a replacement assembly (4) through a dismounting assembly (5); The replacement assembly (4) includes an installation cover (41) inserted into the inner wall of the inner container (3), the front side of the installation cover (41) is fixedly connected with an abutting piece (42), the front side of the abutting piece (42) is abutted with a simulation piece (43), the simulation piece (43) is inserted into the inner wall of the inner container (3) and the outer cover (1), the left and right sides of the installation cover (41) close to the abutting piece (42) are uniformly inserted with replacement pieces (44), the upper and lower sides of the inner container (3) close to the simulation piece (43) are fixedly installed with pressure adjusting pieces (45), and the rear side of the pressure adjusting piece (45) is fixedly connected with a connecting pipe (46).

2. A detachable cerclage simulation teaching model according to claim 1, wherein: The dismounting assembly (5) includes a connecting rod (51), the connecting rod (51) is slidably connected to the inner wall of the installation cover (41), the connecting rod (51) is provided with multiple groups, the multiple groups of the connecting rod (51) are symmetrically arranged, and the opposite sides of the multiple groups of the connecting rod (51) are fixedly connected with operation pieces (52), the operation pieces (52) are slidably arranged in the inner wall of the recess on the rear side of the installation cover (41), the opposite sides of the multiple groups of the connecting rod (51) are fixedly connected with plug-in columns (53), the plug-in columns (53) are inserted into the inner wall of the inner container (3), and the outer side of the connecting rod (51) is sleeved with springs (54).

3. A detachable cerclage simulation teaching model according to claim 2, wherein: One end of the spring (54) is abutted against the inner wall of the installation cover (41), and the other end of the spring (54) is abutted against the outer side of the plug-in column (53).

4. The detachable cerclage simulation teaching model according to claim 1, wherein: The rear side of the installation cover (41) is symmetrically provided with two groups of recesses.

5. The detachable cerclage simulation teaching model according to claim 1, wherein: The simulation piece (43) and the replacement piece (44) are arranged in a bent manner.

6. A detachable cerclage simulation teaching model according to claim 1, wherein: The outer cover (1), the simulation piece (43) and the replacement piece (44) are all made of silica gel material.

7. A detachable cerclage simulation teaching model according to claim 1, wherein: The front side of the abutting piece (42) is provided with a mounting groove.

8. A detachable Cervical Cerclage simulation teaching model as claimed in claim 2, wherein: The middle part of the operation piece (52) is provided with a through groove.

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