Cavity supporting negative pressure suction device for induced abortion

Abstract

The invention discloses a cavity bag supporting negative pressure suction device for induced abortion, which comprises an electric abortion suction unit, a negative pressure air pipe, a negative pressure drainage pipe and an external expansion part, and one end of the negative pressure air pipe is fixedly arranged on the electric abortion suction unit. By twisting a second locking screw, the control ring, the connecting rod and the sliding ring are pulled to move, and the sliding ring moves towards the direction of the fixed ring; the fixing ring drives the second elastic fiber rod and the second elastic fiber sleeve to move towards the first elastic fiber rod and the first elastic fiber sleeve with the axis, connected with the middle adapter, of the middle support as the circle point. The first elastic fiber rod, the first elastic fiber sleeve, the second elastic fiber rod and the second elastic fiber sleeve are arranged in a horn shape in an incomplete folding state, the uterine cavity is supported through the horn shape, the safety and efficiency of an operation can be improved, damage to the uterine cavity can be reduced to the maximum extent, and the operation safety is improved. Therefore, the positive influence on the postoperative recovery of the patient is realized.

Description

Technical Field

[0001] The invention relates to the technical field of gynecological medicine, and in particular to a cavity-supported negative pressure suction device for artificial abortion. Background Art

[0002] In the field of gynecological medicine, artificial abortion is a common surgical procedure used to terminate early pregnancy. In order to ensure the safety and effectiveness of the operation, the cavity-supported negative pressure suction device is widely used in artificial abortion surgery. However, the existing cavity-supported negative pressure suction device for artificial abortion has some significant shortcomings in practical applications. These problems not only affect the safety and efficiency of the operation, but also may cause damage to the uterine cavity and increase the risk of postoperative complications.

[0003] Existing sac-supported negative pressure suction devices are difficult to provide stable support and precise control during surgery, resulting in low safety of the surgery. During abortion surgery, doctors need to use negative pressure suction to suck out the embryonic tissue from the uterine cavity, and this process requires the device to stably support the cervix and maintain appropriate negative pressure. If the sac cannot effectively fit the cervix or the negative pressure is unstable, it may lead to insufficient or excessive suction. The former will prolong the operation time, and the latter may cause unnecessary damage to the uterine wall. In addition, the lack of precise control may also cause serious complications such as bleeding and perforation, endangering the patient's life.

[0004] Existing devices have not fully considered the protection of the uterine cavity in their design, and are prone to damage to the endometrium and myometrium. Traditional negative pressure suction methods usually use a large negative pressure value to ensure the suction effect, but this method often produces greater mechanical stress on the uterine cavity, especially when repeated operations or encountering adhesion tissue, which can easily cause problems such as endometrial exfoliation and myometrial tearing. This damage will not only affect the functional recovery of the uterus, but may also lead to symptoms such as postoperative menstrual disorders and chronic pain, seriously affecting the patient's physical and mental health. At the same time, damage to the uterine cavity may also increase the risk of complications during subsequent pregnancy, such as placenta implantation and premature birth.

[0005] The operation complexity of existing devices is relatively high, which reduces the efficiency of the operation. In an abortion operation, the doctor needs to complete multiple steps in a short period of time, including dilating the cervix, inserting a suction tube, adjusting the negative pressure, etc. If the design of the equipment is not user-friendly and the operation process is cumbersome, it will increase the workload of the doctor and prolong the operation time. In addition, complex operations may also increase the probability of human errors, further affecting the success rate and safety of the operation. For some emergency abortion operations, inefficiency may lead to delayed treatment and bring unnecessary risks to patients.

[0006] Therefore, how to provide a cavity-supported negative pressure suction device for artificial abortion is a problem that those skilled in the art urgently need to solve. Summary of the invention

[0007] One purpose of the present invention is to provide a cavity-supported negative pressure suction device for artificial abortion. The present invention pulls the control ring, the connecting rod and the sliding ring to move by twisting the second locking screw. The sliding ring moves toward the direction of the fixed ring, and the fixed ring drives the second elastic fiber rod and the second elastic fiber sleeve to move along the axis connected to the intermediate support and the intermediate adapter toward the first elastic fiber rod and the first elastic fiber sleeve. The first elastic fiber rod and the first elastic fiber sleeve are in an incompletely folded state with the second elastic fiber rod and the second elastic fiber sleeve, and are arranged in a trumpet shape. The uterine cavity is supported by the trumpet shape, which can not only improve the safety and efficiency of the operation, but also minimize the damage to the uterine cavity, thereby having a positive effect on the patient's postoperative recovery.

[0008] The present invention adopts a trumpet-shaped support for the uterine cavity. The trumpet-shaped support can be more evenly distributed in the uterine cavity through inflation, avoiding excessive local pressure, thereby reducing damage to the uterine wall. This uniform support helps to reduce damage to the endometrium and reduce postoperative complications; the trumpet-shaped shape can better fit the uterine cavity wall, provide more stable support, prevent equipment movement or incomplete sealing due to uneven inflation, ensure that the uterine cavity can maintain a fixed shape during negative pressure drainage, and avoid operational errors during abortion; the trumpet-shaped support can maintain the shape and size of the uterine cavity, making the negative pressure drainage process smoother and more efficient, and the inflated support device can help maintain the openness of the uterine cavity, making the suction process It is more consistent and reduces the situation of insufficient negative pressure caused by the closure of the uterine cavity. Compared with the traditional support method, the inflatable part of the trumpet-shaped support is softer, which can better prevent hard instruments from directly contacting the uterine wall, reduce the damage to the uterine tissue by mechanical stimulation, and reduce the risk of intraoperative bleeding or perforation. The trumpet-shaped design allows the support device to more accurately adapt to uterine cavities of different sizes and shapes, improves the flexibility and adaptability of the operation, and the doctor can ensure that the contents of the uterus are completely removed during the suction process while ensuring that the uterine cavity is fully exposed. Because the trumpet-shaped support can effectively protect the uterine cavity and endometrium and reduce damage to the tissue, it can effectively shorten the postoperative recovery time and reduce the risk of postoperative infection and complications.

[0009] According to an embodiment of the present invention, a cavity-supported negative pressure suction device for artificial abortion comprises an electric abortion suction device, a negative pressure air tube, a negative pressure drainage tube and an external expansion component, wherein one end of the negative pressure air tube is fixedly mounted on the electric abortion suction device, the other end of the negative pressure air tube is fixedly mounted on the end of the negative pressure drainage tube, and the external expansion component is fixedly sleeved on the negative pressure drainage tube;

[0010] The outward expansion component includes an outward expansion tube, an outward expansion assembly, a first locking screw and an external air pipe, wherein the inner portion of the outward expansion tube is sleeved on the end of the negative pressure drainage tube away from the negative pressure air pipe, the outward expansion assembly is slidably installed on the outward expansion tube, the threaded end of the first locking screw is threaded into the outward expansion tube, and the bottom of the external air pipe is fixedly installed on the outward expansion tube.

[0011] Furthermore, a data display screen is fixedly provided on the top of the electric abortion aspirator, a button group is fixedly provided on the top of the electric abortion aspirator, a sleeve frame is fixedly provided at the middle position of the front end of the electric abortion aspirator, and a drainage bottle is provided inside the sleeve frame.

[0012] Furthermore, a functional groove is provided on the front end outer surface of the external expansion tube, and a control groove is provided on the rear end outer surface of the external expansion tube.

[0013] Furthermore, an inflation channel is provided inside the outer expansion tube, and a sliding hole is provided inside the outer expansion tube.

[0014] Furthermore, one end of the inflation channel is connected to an external air pipe, and the other end of the inflation channel is connected to a functional groove.

[0015] Furthermore, the outward expansion component includes a fixed ring, a sliding ring and an elastic medical rubber layer, wherein the inner wall of the fixed ring is fixedly mounted on one side of the functional groove, the inner wall of the sliding ring is slidably sleeved on the other side of the functional groove, one side of the elastic medical rubber layer is fixedly mounted on the fixed ring, and the other side of the elastic medical rubber layer is fixedly mounted on the sliding ring.

[0016] Furthermore, sealing strips are fixedly arranged on both sides of the elastic medical rubber layer, the sealing strips are fixedly embedded in the fixing ring, and the sealing strips are fixedly embedded in the sliding ring.

[0017] Furthermore, the outward expansion component also includes a first support, a first adapter, a first elastic fiber rod, a first elastic fiber sleeve, a first fixed block, an intermediate support and an intermediate adapter, wherein the base of the first support is fixedly mounted on the outer wall of the fixing ring, one end of the first adapter is rotatably inserted in the first support, the other end of the first adapter is fixedly mounted on one end of the first elastic fiber rod, the other end of the first elastic fiber rod is slidably inserted in one end tube of the first elastic fiber sleeve, the other end of the first elastic fiber sleeve is fixedly mounted on the base of the intermediate support, one end of the first fixed block is fixedly sleeved on the first elastic fiber rod and the first elastic fiber sleeve, one end of the first fixed block is fixedly mounted on the elastic medical rubber layer, and the intermediate adapter is rotatably mounted in the intermediate support.

[0018] Furthermore, the outward expansion component also includes a second support, a second adapter, a second elastic fiber rod, a second elastic fiber sleeve and a second fixed block, wherein the base of the second support is fixedly mounted on the outer wall of the sliding ring, one end of the second adapter is rotatably mounted in the second support, one end of the second elastic fiber rod is fixedly mounted on the other end of the second adapter, the other end of the second elastic fiber rod is slidably inserted in one end tube of the second elastic fiber sleeve, the other end of the second elastic fiber sleeve is fixedly mounted on the middle adapter, one end of the second fixed block is fixedly sleeved on the second elastic fiber rod and the second elastic fiber sleeve, and the other end of the second fixed block is fixedly mounted on the elastic medical rubber layer.

[0019] Furthermore, the outward expansion component also includes a control ring, a connecting rod and a second locking screw, wherein the control ring is slidably mounted on the inner wall of the control groove, one end of the connecting rod is fixedly mounted on the control ring, the other end of the connecting rod is fixedly mounted on the sliding ring, the connecting rod is slidably inserted in the sliding hole, and the threaded end of the second locking screw is threadedly embedded in the control ring.

[0020] The beneficial effects of the present invention are:

[0021] The present invention pulls the control ring, the connecting rod and the sliding ring to move by twisting the second locking screw, and the sliding ring moves toward the direction of the fixing ring, and the fixing ring drives the second elastic fiber rod and the second elastic fiber sleeve to move along the axis connected to the intermediate support and the intermediate adapter toward the first elastic fiber rod and the first elastic fiber sleeve. The first elastic fiber rod and the first elastic fiber sleeve are in an incompletely folded state with the second elastic fiber rod and the second elastic fiber sleeve, and are arranged in a trumpet shape. The uterine cavity is supported by the trumpet shape, which can not only improve the safety and efficiency of the operation, but also minimize the damage to the uterine cavity, thereby having a positive effect on the patient's postoperative recovery.

[0022] The present invention adopts a trumpet-shaped support for the uterine cavity. The trumpet-shaped support can be more evenly distributed in the uterine cavity through inflation, avoiding excessive local pressure, thereby reducing damage to the uterine wall. This uniform support helps to reduce damage to the endometrium and reduce postoperative complications; the trumpet-shaped shape can better fit the uterine cavity wall, provide more stable support, prevent equipment movement or incomplete sealing due to uneven inflation, ensure that the uterine cavity can maintain a fixed shape during negative pressure drainage, and avoid operational errors during abortion; the trumpet-shaped support can maintain the shape and size of the uterine cavity, making the negative pressure drainage process smoother and more efficient, and the inflated support device can help maintain the openness of the uterine cavity, making the suction process It is more consistent and reduces the situation of insufficient negative pressure caused by the closure of the uterine cavity. Compared with the traditional support method, the inflatable part of the trumpet-shaped support is softer, which can better prevent hard instruments from directly contacting the uterine wall, reduce the damage to the uterine tissue by mechanical stimulation, and reduce the risk of intraoperative bleeding or perforation. The trumpet-shaped design allows the support device to more accurately adapt to uterine cavities of different sizes and shapes, improves the flexibility and adaptability of the operation, and the doctor can ensure that the contents of the uterus are completely removed during the suction process while ensuring that the uterine cavity is fully exposed. Because the trumpet-shaped support can effectively protect the uterine cavity and endometrium and reduce damage to the tissue, it can effectively shorten the postoperative recovery time and reduce the risk of postoperative infection and complications. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of a cavity-supported negative pressure suction device for artificial abortion proposed by the present invention;

[0025] Figure 2 This is a schematic structural diagram of an external expansion tube of a cavity-supported negative pressure suction device for artificial abortion proposed by the present invention;

[0026] Figure 3 A cross-sectional view of a negative pressure drainage tube of a cavity-supported negative pressure suction device for artificial abortion proposed by the present invention;

[0027] Figure 4 A cavity bag-supported negative pressure suction device for artificial abortion proposed by the present invention Figure 3 A magnified image of point A;

[0028] Figure 5 A cavity bag-supported negative pressure suction device for artificial abortion proposed by the present invention Figure 3 A magnified view of point B;

[0029] Figure 6 A cavity bag-supported negative pressure suction device for artificial abortion proposed by the present invention Figure 3 Enlarged view of point C;

[0030] Figure 7 This is a schematic diagram of the structure of a control ring of a cavity-supported negative pressure suction device for artificial abortion proposed by the present invention;

[0031] Figure 8 This is a schematic structural diagram of a second elastic fiber sleeve of a cavity-supported negative pressure suction device for artificial abortion proposed by the present invention.

[0032] In the figure: 1. Electric abortion aspirator; 1.1. Data display screen; 1.2. Button group; 1.3. Sleeve frame; 1.4. Drainage bottle; 2. Negative pressure air tube; 3. Negative pressure drainage tube; 4. External expansion component; 5. External expansion tube; 5.1. Function slot; 5.2. Control slot; 5.3. Inflating channel; 5.4. Sliding hole; 6. External expansion component; 6.1. Fixed ring; 6.2. Sliding ring; 6.3. Elastic medical rubber layer; 6.4. Sealing strip; 6.5. First support; 6.6. An adapter; 6.7, a first elastic fiber rod; 6.8, a first elastic fiber sleeve; 6.9, a first fixed block; 6.10, an intermediate support; 6.11, an intermediate adapter; 6.12, a second support; 6.13, a second adapter; 6.14, a second elastic fiber rod; 6.15, a second elastic fiber sleeve; 6.16, a second fixed block; 6.17, a control ring; 6.18, a connecting rod; 6.19, a second locking screw; 7, a first locking screw; 8, an external air pipe. DETAILED DESCRIPTION

[0033] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0034] Please refer to Figures 1 to 8 The present invention provides a cavity-supported negative pressure suction device for artificial abortion, comprising an electric abortion suction device 1, a negative pressure air tube 2, a negative pressure drainage tube 3 and an external expansion component 4, wherein one end of the negative pressure air tube 2 is fixedly installed on the electric abortion suction device 1, the other end of the negative pressure air tube 2 is fixedly installed on the end of the negative pressure drainage tube 3, and the external expansion component 4 is fixedly sleeved on the negative pressure drainage tube 3; the external expansion component 4 comprises an external expansion tube 5, an external expansion component 6, a first locking screw 7 and an external air tube 8, wherein the inner part of the external expansion tube 5 is sleeved on the end of the negative pressure drainage tube 3 away from the negative pressure air tube 2, the external expansion component 6 is slidably installed on the external expansion tube 5, the threaded end of the first locking screw 7 is screwed into the external expansion tube 5, the bottom of the external air tube 8 is fixedly installed on the external expansion tube 5, and the external air tube 8 is used to connect an external inflation device.

[0035] Specifically, a data display screen 1.1 is fixedly provided on the top of the electric abortion aspirator 1, a button group 1.2 is fixedly provided on the top of the electric abortion aspirator 1, a sleeve frame 1.3 is fixedly provided at the middle position of the front end of the electric abortion aspirator 1, a drainage bottle 1.4 is provided inside the sleeve frame 1.3, a functional groove 5.1 is provided on the front end outer surface of the outer expansion tube 5, a control groove 5.2 is provided on the rear end outer surface of the outer expansion tube 5, an inflation channel 5.3 is provided inside the outer expansion tube 5, a sliding hole 5.4 is provided inside the outer expansion tube 5, one end of the inflation channel 5.3 is connected to the external air pipe 8, and the other end of the inflation channel 5.3 is connected to the functional groove 5.1.

[0036] More specifically, the external expansion component 6 includes a fixed ring 6.1, a sliding ring 6.2 and an elastic medical rubber layer 6.3, wherein the inner wall of the fixed ring 6.1 is fixedly mounted on one side of the functional groove 5.1, the inner wall of the sliding ring 6.2 is slidably sleeved on the other side of the functional groove 5.1, one side of the elastic medical rubber layer 6.3 is fixedly mounted on the fixed ring 6.1, and the other side of the elastic medical rubber layer 6.3 is fixedly mounted on the sliding ring 6.2; sealing strips 6.4 are fixedly arranged on both sides of the elastic medical rubber layer 6.3, the sealing strips 6.4 are fixedly embedded in the fixed ring 6.1, and the sealing strips 6.4 are fixedly embedded in the sliding ring 6.2; the external expansion component 6 also includes a first support 6.5, a first adapter 6.6, a first elastic fiber rod 6.7, a first elastic fiber sleeve 6.8, and a first fixed block 6.9 , an intermediate support 6.10 and an intermediate adapter 6.11, wherein the base of the first support 6.5 is fixedly mounted on the outer wall of the fixing ring 6.1, one end of the first adapter 6.6 is rotatably inserted in the first support 6.5, the other end of the first adapter 6.6 is fixedly mounted on one end of the first elastic fiber rod 6.7, the other end of the first elastic fiber rod 6.7 is slidably inserted in one end tube of the first elastic fiber sleeve 6.8, the other end of the first elastic fiber sleeve 6.8 is fixedly mounted on the base of the intermediate support 6.10, one end of the first fixed block 6.9 is fixedly sleeved on the first elastic fiber rod 6.7 and the first elastic fiber sleeve 6.8, one end of the first fixed block 6.9 is fixedly mounted on the elastic medical rubber layer 6.3, and the intermediate adapter 6.11 is rotatably mounted in the intermediate support 6.10.

[0037] The outward expansion component 6 also includes a second support 6.12, a second adapter 6.13, a second elastic fiber rod 6.14, a second elastic fiber sleeve 6.15 and a second fixed block 6.16, wherein the base of the second support 6.12 is fixedly mounted on the outer wall of the sliding ring 6.2, one end of the second adapter 6.13 is rotatably mounted in the second support 6.12, one end of the second elastic fiber rod 6.14 is fixedly mounted on the other end of the second adapter 6.13, the other end of the second elastic fiber rod 6.14 is slidably inserted in one end tube of the second elastic fiber sleeve 6.15, the other end of the second elastic fiber sleeve 6.15 is fixedly mounted on the middle adapter 6.11, and the second fixed block 6.16 is fixedly mounted on the outer wall of the sliding ring 6.2, one end of the second adapter 6.13 is rotatably mounted in the second support 6.12, one end of the second elastic fiber rod 6.14 is fixedly mounted on the other end of the second adapter 6.13, and the other end of the second elastic fiber rod 6.14 is slidably inserted in one end tube of the second elastic fiber sleeve 6.15. The other end of the second elastic fiber sleeve 6.15 is fixedly mounted on the middle adapter 6.11. One end of the fixed block 6.16 is fixedly sleeved on the second elastic fiber rod 6.14 and the second elastic fiber sleeve 6.15, and the other end of the second fixed block 6.16 is fixedly mounted on the elastic medical rubber layer 6.3; the outward expansion component 6 also includes a control ring 6.17, a connecting rod 6.18 and a second locking screw 6.19, wherein the control ring 6.17 is slidably mounted on the inner wall of the control groove 5.2, one end of the connecting rod 6.18 is fixedly mounted on the control ring 6.17, the other end of the connecting rod 6.18 is fixedly mounted on the sliding ring 6.2, the connecting rod 6.18 is slidably inserted in the sliding hole 5.4, and the threaded end of the second locking screw 6.19 is threadedly embedded in the control ring 6.17.

[0038] Furthermore, during the drainage operation, the external air tube 8 is first used to connect to an external inflation device, and then the negative pressure drainage tube 3 and the external expansion tube 5 are extended into the uterine cavity.

[0039] First, the inflation device is started, and the gas enters the inflation channel 5.3 from the external air pipe 8, and then enters between the functional groove 5.1 and the elastic medical rubber layer 6.3 from the inflation channel 5.3. The elastic medical rubber layer 6.3 swells in the uterine cavity, and the swollen elastic medical rubber layer 6.3 swings the intermediate support 6.10 and the intermediate adapter 6.11 to rotate, and the connection between the first elastic fiber rod 6.7 and the first elastic fiber sleeve 6.8 and the second elastic fiber rod 6.14 and the second elastic fiber sleeve 6.15 (i.e., the connection between the intermediate support 6.10 and the intermediate adapter 6.11) folds toward the outside of the functional groove 5.1.

[0040] The second locking screw 6.19 is twisted to pull the control ring 6.17. The movement of the control ring 6.17 drives the connecting rod 6.18 to move. The movement of the connecting rod 6.18 drives the sliding ring 6.2 to move. The sliding ring 6.2 moves toward the fixing ring 6.1. The fixing ring 6.1 drives the second elastic fiber rod 6.14 and the second elastic fiber sleeve 6.15 to move along the axis connected to the intermediate support 6.10 and the intermediate adapter 6.11 toward the first elastic fiber rod 6.7 and the first elastic fiber sleeve 6.8. The first elastic fiber rod 6.7 and the first elastic fiber sleeve 6.8 are in an incompletely folded state with the second elastic fiber rod 6.14 and the second elastic fiber sleeve 6.15, and are arranged in a trumpet shape, and the uterine cavity is supported by the trumpet shape.

[0041] The design of the trumpet-shaped support for the uterine cavity has the following main benefits:

[0042] 1. Evenly distribute pressure; the trumpet-shaped support can be more evenly distributed in the uterine cavity through inflation, avoiding excessive local pressure and thus reducing damage to the uterine wall. This uniform support helps reduce damage to the endometrium and reduce postoperative complications.

[0043] 2. Enhanced stability: The trumpet-like shape can better fit the wall of the uterine cavity, provide more stable support, prevent device movement or incomplete sealing due to uneven inflation, ensure that the uterine cavity can maintain a fixed shape during negative pressure drainage, and avoid operational errors during abortion.

[0044] 3. Improve the effect of negative pressure drainage; the trumpet-shaped support can maintain the shape and size of the uterine cavity, making the negative pressure drainage process smoother and more efficient. The inflated support device can help maintain the openness of the uterine cavity, making the suction process more consistent and reducing the lack of negative pressure caused by the closure of the uterine cavity.

[0045] 4. Reduce direct contact and stimulation to the uterus; compared with traditional support methods, the inflatable part of the trumpet-shaped support is softer, which can better prevent hard instruments from directly contacting the uterine wall, reduce damage to uterine tissue caused by mechanical stimulation, and reduce the risk of intraoperative bleeding or perforation.

[0046] 5. Improve operational accuracy; the trumpet-shaped design allows the support device to more accurately adapt to uterine cavities of different sizes and shapes, improving operational flexibility and adaptability. The doctor can ensure that the contents of the uterus are completely removed during the suction process while ensuring that the uterine cavity is fully exposed.

[0047] 6. Reduce postoperative recovery time; because the trumpet-shaped support can effectively protect the uterine cavity and endometrium and reduce damage to tissues, it can effectively shorten postoperative recovery time and reduce the risk of postoperative infection and complications.

[0048] By unlocking the first locking screw 7, stabilizing the external expansion tube 5, and turning on the electric abortion suction device 1, the electric abortion suction device 1 generates negative pressure, and pressure is generated in the negative pressure air tube 2 and the negative pressure drainage tube 3. The negative pressure drainage tube 3 is moved to drain the fetus in the uterine cavity through the negative pressure drainage tube 3. The fetus enters the internal pipeline of the electric abortion suction device 1 through the negative pressure drainage tube 3 and the negative pressure air tube 2, and then enters the drainage bottle 1.4 to achieve drainage.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sac-supported negative pressure suction device for artificial abortion, characterized in that: The invention comprises an electric abortion aspirator (1), a negative pressure air tube (2), a negative pressure drainage tube (3) and an external expansion component (4), wherein one end of the negative pressure air tube (2) is fixedly mounted on the electric abortion aspirator (1), the other end of the negative pressure air tube (2) is fixedly mounted on the end of the negative pressure drainage tube (3), and the external expansion component (4) is fixedly sleeved on the negative pressure drainage tube (3); The external expansion component (4) comprises an external expansion tube (5), an external expansion assembly (6), a first locking screw (7) and an external air pipe (8), wherein the interior of the external expansion tube (5) is sleeved on an end of the negative pressure drainage tube (3) away from the negative pressure air pipe (2), the external expansion assembly (6) is slidably mounted on the external expansion tube (5), the threaded end of the first locking screw (7) is screwed into the external expansion tube (5), and the bottom of the external air pipe (8) is fixedly mounted on the external expansion tube (5).

2. A sac-supported negative pressure suction device for artificial abortion according to claim 1, characterized in that: A data display screen (1.1) is fixedly arranged on the top of the electric abortion aspirator (1), a button group (1.2) is fixedly arranged on the top of the electric abortion aspirator (1), a sleeve frame (1.3) is fixedly arranged at the middle position of the front end of the electric abortion aspirator (1), and a drainage bottle (1.4) is arranged inside the sleeve frame (1.3).

3. The sac-supported negative pressure suction device for artificial abortion according to claim 1, characterized in that: A functional groove (5.1) is provided on the front outer surface of the external expansion tube (5), and a control groove (5.2) is provided on the rear outer surface of the external expansion tube (5).

4. The sac-supported negative pressure suction device for artificial abortion according to claim 1, characterized in that: An air filling passage (5.3) is provided inside the external expansion tube (5), and a sliding hole (5.4) is provided inside the external expansion tube (5).

5. A sac-supported negative pressure suction device for artificial abortion according to claim 4, characterized in that: One end of the inflation channel (5.3) is connected to the external air pipe (8), and the other end of the inflation channel (5.3) is connected to the functional groove (5.1).

6. The sac-supported negative pressure suction device for artificial abortion according to claim 1, characterized in that: The outward expansion component (6) comprises a fixed ring (6.1), a sliding ring (6.2) and an elastic medical rubber layer (6.3), wherein the inner wall of the fixed ring (6.1) is fixedly mounted on one side of the functional groove (5.1), the inner wall of the sliding ring (6.2) is slidably sleeved on the other side of the functional groove (5.1), one side of the elastic medical rubber layer (6.3) is fixedly mounted on the fixed ring (6.1), and the other side of the elastic medical rubber layer (6.3) is fixedly mounted on the sliding ring (6.2).

7. A sac-supported negative pressure suction device for artificial abortion according to claim 6, characterized in that: Sealing strips (6.4) are fixedly arranged on both sides of the elastic medical rubber layer (6.3); the sealing strips (6.4) are fixedly embedded in the fixing ring (6.1); and the sealing strips (6.4) are fixedly embedded in the sliding ring (6.2).

8. The sac-supported negative pressure suction device for artificial abortion according to claim 6, characterized in that: The outward expansion assembly (6) further comprises a first support (6.5), a first adapter (6.6), a first elastic fiber rod (6.7), a first elastic fiber sleeve (6.8), a first fixing block (6.9), an intermediate support (6.10) and an intermediate adapter (6.11), wherein the base of the first support (6.5) is fixedly mounted on the outer wall of the fixing ring (6.1), one end of the first adapter (6.6) is rotatably inserted into the first support (6.5), and the other end of the first adapter (6.6) is fixedly mounted on one end of the first elastic fiber rod (6.7). The first elastic fiber rod (6.7) is slidably inserted into one end of the first elastic fiber sleeve (6.8), and the other end of the first elastic fiber sleeve (6.8) is fixedly mounted on the base of the intermediate support (6.10). One end of the first fixed block (6.9) is fixedly sleeved on the first elastic fiber rod (6.7) and the first elastic fiber sleeve (6.8), and one end of the first fixed block (6.9) is fixedly mounted on the elastic medical rubber layer (6.3). The intermediate adapter (6.11) is rotatably mounted in the intermediate support (6.10).

9. The sac-supported negative pressure suction device for artificial abortion according to claim 8, characterized in that: The outward expansion assembly (6) further comprises a second support (6.12), a second adapter (6.13), a second elastic fiber rod (6.14), a second elastic fiber sleeve (6.15) and a second fixed block (6.16), wherein the base of the second support (6.12) is fixedly mounted on the outer wall of the sliding ring (6.2), one end of the second adapter (6.13) is rotatably mounted in the second support (6.12), and one end of the second elastic fiber rod (6.14) is fixedly mounted on the second adapter (6.16). 3), the other end of the second elastic fiber rod (6.14) is slidably inserted into one end tube of the second elastic fiber sleeve (6.15), the other end of the second elastic fiber sleeve (6.15) is fixedly mounted on the intermediate adapter (6.11), one end of the second fixing block (6.16) is fixedly sleeved on the second elastic fiber rod (6.14) and the second elastic fiber sleeve (6.15), and the other end of the second fixing block (6.16) is fixedly mounted on the elastic medical rubber layer (6.3).

10. A sac-supported negative pressure suction device for artificial abortion according to claim 9, characterized in that: The outward expansion component (6) also includes a control ring (6.17), a connecting rod (6.18) and a second locking screw (6.19), wherein the control ring (6.17) is slidably mounted on the inner wall of the control groove (5.2), one end of the connecting rod (6.18) is fixedly mounted on the control ring (6.17), and the other end of the connecting rod (6.18) is fixedly mounted on the sliding ring (6.2), the connecting rod (6.18) is slidably inserted into the sliding hole (5.4), and the threaded end of the second locking screw (6.19) is threadedly embedded in the control ring (6.17).

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