A transvaginal fallopian tube recanalization device

Abstract

A transvaginal fallopian tube recanalization device comprises: two support structures for supporting two sections of fallopian tubes, each support structure comprising a balloon part, a support part and a filling tube, a through-channel is arranged in the center of the balloon part, the support part is arranged outside the balloon part, and the support part and the balloon part move forward and backward at the same time; a delivery tube is provided with two support structures inside, the support structures are closely attached to the inner wall of the delivery tube, and the delivery tube delivers the support structures into the two cut sections of fallopian tubes through the vagina; a push-out structure is arranged inside the delivery tube, and the push-out structure pushes the support structures in the delivery tube out of the delivery tube one by one; a guide wire, the through-channel of the delivery tube and the balloon part is sleeved on the outside of the guide wire, and the delivery tube and the support structure move along the guide wire; the support structures are sequentially delivered into the two sections of fallopian tubes through the delivery tube, the support structures are propped up to the fallopian tubes through the balloon part, and the filling tube is pulled to achieve docking of the two support structures, and the docking of the two sections of fallopian tubes is completed at the same time.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a device for fallopian tube recanalization, and specifically provides a transvaginal fallopian tube recanalization device. Background Art

[0002] In clinical practice, fallopian tube obstruction is an important cause of infertility, and fallopian tube obstruction may be caused by ligation or by blockage of the isthmus or ampulla of the fallopian tube caused by lesions. Currently, laparoscopic surgery is used in clinical practice. Under the visual state of the laparoscope, the operation channel is used to enter the abdominal cavity to remove the blocked part of the fallopian tube. After the removal, the two unblocked fallopian tubes are sutured to restore the blockage.

[0003] Because the fallopian tubes are soft and thin, the operation of connecting two sections of the fallopian tubes is very cumbersome and not smooth. If the suturing is completed without good connection, even after suturing, the junction of the fallopian tubes is prone to inward scar growth. The inward scar will cause the tubes at the sutured part of the fallopian tubes to narrow. Although the tubes are restored, there is still a problem of poor passage of the fertilized egg, which reduces the probability of normal pregnancy after the operation.

[0004] Therefore, there is a need for an instrument that can effectively complete the recanalization of two cut fallopian tubes. The present invention provides a transvaginal fallopian tube recanalization instrument. Summary of the invention

[0005] After the fallopian tube is cut, the fallopian tube will collapse due to its softness, which requires a lot of effort for medical staff to dock it. In addition, it is particularly easy to cause endogenous scars due to poor docking, which will reduce the chance of normal pregnancy after surgery. The present invention uses a double support structure delivered through the vagina to support two sections of the fallopian tube; and a structure for docking the double support structure is provided to support the docking and state maintenance of the latter two support structures, so as to ensure the effective docking of the two sections of the fallopian tube. After docking, the suturing operation is completed under the observation of the laparoscope.

[0006] A transvaginal fallopian tube recanalization device, comprising:

[0007] There are two supporting structures, namely the first supporting structure and the second supporting structure; used to support two sections of fallopian tubes, each supporting structure includes

[0008] A balloon part, wherein a through channel is arranged in the center of the balloon part;

[0009] A support part is arranged outside the balloon part, and the support part and the balloon part move forward and backward at the same time;

[0010] An inflation tube is connected to the balloon part and is used to inflate the balloon part, thereby driving the supporting part outside the balloon part to play a supporting role; the inflation tube of one balloon part passes through the through-channel of the other balloon part; the end of the inflation tube is arranged outside the body and connected to the inflation structure;

[0011] The delivery tube has two support structures disposed therein. The support structures are closely attached to the inner wall of the delivery tube. The positions of the support structures and the delivery tube remain unchanged without external force. The filling tubes on the two support structures are introduced to the outside of the delivery tube through the delivery tube. The delivery tube is used to deliver the support structures to the two cut-off fallopian tubes through the vagina.

[0012] A push-out structure, the first end of which is disposed inside the delivery pipe, and the second end of which is disposed outside the delivery pipe, and the push-out structure pushes the supporting structures inside the delivery pipe out of the delivery pipe one by one;

[0013] The through-channels of the guidewire, delivery tube and balloon are sleeved on the outside of the guidewire, and the delivery tube and the supporting structure are guided and moved along the guidewire;

[0014] Among them, the pushing structure pushes the first supporting structure out of the conveying tube, and then withdraws the conveying tube, and inflates the balloon part of the first supporting structure through the inflation tube, while driving the supporting part to support the fallopian tube, and then pushes the second supporting structure out of the conveying tube, and inflates the balloon part of the second supporting structure through the inflation tube; the inflation tube connected to the balloon part of the first supporting structure is pulled to drive the fallopian tube supported by the first supporting structure to approach the fallopian tube supported by the second supporting structure; the first supporting structure and the second supporting structure are docked to achieve docking of the fallopian tube, and suturing is performed after docking.

[0015] Steps:

[0016] Guidewire entry: The cut fallopian tube is divided into the first section away from the uterus and the second section connected to the uterus. Under the observation of hysteroscopy and laparoscopy, the guidewire is first inserted into the cut part of the fallopian tube through the vagina; then enters the first section of the fallopian tube,

[0017] Support of the first section of the fallopian tube: under the guidance of the guide wire, the delivery tube provided with two support structures is led into the first section of the fallopian tube, and then under the observation of the laparoscope, the delivery tube stops after entering the position 1-3mm away from the edge of the first section of the fallopian tube. After the delivery tube enters the edge of the first section of the fallopian tube, the advancement distance is observed at the rear end, and the first support structure is pushed out from the delivery tube into the first section of the fallopian tube by using the push-out structure, and it is ensured that the first support structure completely enters the first section of the fallopian tube. The first end of the first support structure close to the edge of the first section of the fallopian tube is finally achieved. The distance between the end of the first end and the edge of the first section of the fallopian tube is 1-3mm; then the delivery tube is withdrawn, and the delivery tube is withdrawn from the first section of the fallopian tube so that the first support structure is separated from the second support structure, and then the balloon part of the first support structure is inflated by using the inflation tube, and the first section of the fallopian tube is supported by the propped-up first support structure;

[0018] Support of the second fallopian tube: withdraw the delivery tube into the second fallopian tube, and control the distance between the end of the delivery tube and the edge of the second fallopian tube to be the length of the support structure plus 1-3mm; when the delivery tube is observed to be withdrawn into the second fallopian tube through laparoscopy, the moving distance of the delivery tube can be observed in vitro, and the length of the support structure plus 1-3mm can be observed; then the delivery tube stops withdrawing, the position of the delivery tube remains unchanged, and the second support structure is pushed out of the delivery tube through the pushing structure; then the balloon part of the second support structure is inflated by the inflation tube, and the second fallopian tube is supported by the propped-up second support structure;

[0019] Docking of two sections of fallopian tubes: Under laparoscopic observation, pull back the filling tube on the first supporting structure to drive the fallopian tube supported by the first supporting structure to move, and control the first supporting structure to move toward the second supporting structure. During the process, the direction can be controlled by the laparoscope operating instrument, and finally the first supporting structure and the second supporting structure are docked; at the same time, the first section of the fallopian tube supported by the two are docked with the second section of the fallopian tube.

[0020] Fallopian tube suturing: Under laparoscopic observation, the docked fallopian tubes are sutured;

[0021] Withdrawal of the supporting device: first, deflate the balloon portions of the two supporting structures, then push the delivery tube forward, and simultaneously withdraw the inflation tube of the second supporting structure, so that the second supporting structure enters into the delivery tube, and continue to withdraw the inflation tube until the second supporting structure enters into the original position in the delivery tube, which can be achieved by setting a marking line on the inflation tube; then push the delivery tube forward and simultaneously withdraw the inflation tube of the first supporting structure, so that the first supporting structure enters into the delivery tube, and continue to withdraw the inflation tube until the first supporting structure enters into the original position in the delivery tube, and then withdraw the delivery tube out of the body.

[0022] Beneficial effects of the present invention:

[0023] The method of inserting the two support structures into the two disconnected fallopian tubes through the vagina can ensure that the two support structures can be placed more smoothly at the same time with a certain degree of continuity.

[0024] The setting of the two supporting structures can ensure that the two sections of the fallopian tube are propped up, and the fallopian tubes are connected by filling the tubes to ensure the edge correspondence during suturing, ultimately ensuring the suturing effect and avoiding the problem of endogenous scarring caused by poor edge connection.

[0025] By setting the support structure at a distance of 1-3 mm from the edge of the fallopian tube, it can be ensured that the two sections of the fallopian tube are effectively docked and overlapped in a small range when the two support structures are docked. This overlap after docking can effectively reduce the difficulty of suturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the present invention which is arranged outside the fallopian tube and is basically in a docking state;

[0027] Figure 2 This is a schematic diagram of the structure of two supporting structures of the present invention in a basic docking state;

[0028] Figure 3 A schematic diagram of a longitudinal cross-sectional structure of a first supporting structure provided with guide parts at both ends of the present invention;

[0029] Figure 4 A schematic diagram of a longitudinal cross-sectional structure of a second supporting structure with a guide portion provided at one end of the present invention;

[0030] Figure 5 This is a schematic diagram of a first supporting structure in which the supporting structure of the present invention is surrounded by supporting sheets;

[0031] Figure 6 It is a partial enlarged structural schematic diagram of two supporting structures of the present invention arranged in a conveying pipe;

[0032] Figure 7 This is a schematic diagram of a partially enlarged longitudinal cross-sectional structure of the front end of the delivery pipe of the present invention;

[0033] Figure 8 It is a partially enlarged longitudinal cross-sectional structural schematic diagram of the combination position of the first supporting structure and the second supporting structure of the delivery pipe of the present invention;

[0034] Fig. 9 It is a partially enlarged structural schematic diagram of the combination position of the second supporting structure and the pushing structure of the delivery pipe of the present invention;

[0035] Description of main reference numerals

[0036] 11. First supporting structure; 12. Second supporting structure; 13. Supporting part; 131. Supporting sheet; 14. Balloon part; 141. Through channel; 15. Inflating tube; 16. Guide part; 161. Adduction sheet; 2. Delivery tube; 31. Push-out tube; 32. Push-out plate; 4. Guide wire; 51. First section of fallopian tube; 52. Second section of fallopian tube. DETAILED DESCRIPTION

[0037] Example 1

[0038] refer to Figure 1-9 A transvaginal fallopian tube recanalization device, comprising a support structure, a delivery tube 2, a push-out structure and a guide wire 4

[0039] Two supporting structures, namely a first supporting structure 11 and a second supporting structure 12; used to support two sections of fallopian tubes, each supporting structure includes a balloon part 14, a supporting part 13 and an inflating tube 15, a through channel 141 is arranged in the center of the balloon part 14; the supporting part 13 is arranged outside the balloon part 14, and the supporting part 13 and the balloon part 14 move forward and backward at the same time; the inflating tube 15 is connected to the balloon part 14, used to inflate the balloon part 14, and then drive the supporting part 13 outside the balloon part 14 to play a supporting role; the inflating tube 15 of one balloon part 14 passes through the through channel 141 of the other balloon part 14; the end of the inflating tube 15 is arranged outside the body and connected to the inflating structure;

[0040] Two supporting structures are arranged in the delivery tube 2, and the supporting structures are close to the inner wall of the delivery tube 2. The positions of the supporting structures and the delivery tube 2 remain unchanged without external force. The filling tubes 15 on the two supporting structures are introduced to the outside of the delivery tube 2 through the delivery tube 2. The delivery tube 2 is used to deliver the supporting structures to the two truncated fallopian tubes through the vagina.

[0041] The first end of the push-out structure is arranged inside the delivery pipe 2, and the second end is arranged outside the delivery pipe 2. The push-out structure pushes the supporting structures inside the delivery pipe 2 out of the delivery pipe 2 one by one;

[0042] The guide wire 4, the delivery tube 2 and the through channel 141 of the balloon part 14 are sleeved on the outside of the guide wire 4, and the delivery tube 2 and the supporting structure are guided and moved along the guide wire 4;

[0043] Among them, the pushing structure pushes the first supporting structure 11 out of the conveying tube 2, and then withdraws the conveying tube 2, and inflates the balloon part 14 of the first supporting structure 11 through the filling tube 15, while driving the supporting part 13 to support the fallopian tube, and then pushes the second supporting structure 12 out of the conveying tube 2, and inflates the balloon part 14 of the second supporting structure 12 through the filling tube 15; pulls the filling tube 15 connected to the balloon part 14 of the first supporting structure 11 to drive the fallopian tube supported by the first supporting structure 11 to move closer to the fallopian tube supported by the second supporting structure 12; realizes the docking of the fallopian tubes, and sutures them after docking.

[0044] The above arrangement can ensure that the two support structures pass through the vagina and enter the two severed fallopian tubes, effectively playing a supporting role, avoiding the situation where the tissue is sutured to the inside of the fallopian tubes due to improper fallopian tube docking during suturing, and ultimately avoiding or greatly reducing the possibility of endogenous scars. By setting the inflation tube 15 extending to the rear, the support structure inflated by the inflation tube 15 can be docked by pulling the inflation tube 15.

[0045] A more preferred embodiment is to refer to Figure 2-4 ; In order to better achieve the docking of the two support structures, and to better enter the delivery tube 2 after the support is completed to complete the withdrawal action, a guide part 16 extending outward from the support part 13 is provided at one end of each support part 13; the inner and outer diameters of the first end of the guide part 16 are consistent with the main part of the support part 13, and the inner and outer diameters of the second end of the guide part 16 are smaller than the inner and outer diameters of the first end, and the inner diameter of the second end of the guide part 16 allows the guide wire 4 and the filling tube 15 to pass through; the size of the first end of the guide part 16 to the second end is smoothly transitioned. By setting up an inward-retracting structure, it can be ensured that when docking, the inward-retracting structure enters into the supporting structure to be docked with it, and the small size of the inward-retracting structure makes it easier to enter the supporting structure. Moreover, when the support structure is withdrawn, the inward-retracting structure will also better guide the support structure to enter the delivery tube 2, reducing the difficulty of withdrawal. An inward-retracting structure is provided at each end of the supporting portion 13 of the first supporting structure 11. This arrangement can make it easier for the first supporting structure 11 to enter the first fallopian tube 51 and to enter the delivery tube 2 when it needs to be withdrawn. The supporting portion 13 of the corresponding second supporting structure 12 is provided with an inward-retracting structure at only one end to facilitate withdrawal.

[0046] A more preferred embodiment is to refer to Figure 5; The support part 13 is attached to the outside of the balloon part 14, and the support part 13 is a hole-shaped bracket or a plurality of hard support rods or support sheets 131 attached to the outside of the balloon part 14; it should be noted that the attached drawings only illustrate the position of the support part 13, and even if the bracket hole is not shown, it does not affect the understanding of the technical solution. The support sheet 131 can be preferred, and multiple support sheets 131 play a supporting role on the fallopian tube. An inward sheet 161 is set at the end of the support sheet 131. Multiple support sheets 131 are constructed into the support part 13, and the inward sheet 161 at the end thereof surrounds the guide part 16. The setting of the support sheet 131 can make it more convenient to attach and combine the support part 13 and the balloon part 14. 4-8 sheets are set around the balloon part 14, and this number of sheets can meet the effective support needs.

[0047] A more preferred embodiment is that the support part 13 is a hard support part 13, the length of the balloon part 14 exceeds more than two-thirds of the length of the support part 13, and the distance between the edges of both ends of the inflated balloon part 14 and the edge of the main part of the support part 13 is greater than 3 mm; the setting of the hard support part 13 can ensure that after the balloon is inflated, the support part 13 effectively supports the fallopian tube, and the inflated balloon will not extend to the edge of the support part 13. This setting can ensure that after docking, when performing the suturing operation, the suture needle will not sew to the balloon area to cause accidental puncture of the balloon, thereby causing the failure of the operation.

[0048] In a more preferred embodiment, the main body of the support portion 13 is 1-2 cm long and the axial length of the guide portion 16 is less than 0.5 mm. This distance setting can ensure the strength of the support while avoiding the difficulty of insertion caused by the excessive length.

[0049] A more preferred embodiment is as follows: scale lines are arranged on the outside of the delivery tube 2 , and the setting of the scale lines can ensure the selection of the advance and retreat distance when determining the position of the delivery tube 2 .

[0050] A more preferred implementation is as follows: an inflation tube 15 is provided for the balloon portion 14 of each supporting structure, the rear end of the inflation tube is connected to the inflation structure, the inflation structure may be a syringe or an electric inflation structure, the rear end of the inflation tube 15 is connected to a connector with a one-way valve allowing air intake, the connector is connected to the inflation structure to complete the inflation action, and the inflation state is maintained after the inflation structure is removed; deflation is performed after the connector is removed, and the entire structural setting is simple and reasonable.

[0051] A more preferred embodiment is that the inflation tube 15 is arranged on one side of the balloon, and the balloon is inflated from the bottom. This arrangement can reduce the difficulty of the arrangement, and because it only supports the fallopian tube, and does not play the role of opening the blocked section like a vascular stent, the force that needs to be overcome is not large. Therefore, it is arranged on one side to solve the problem of inflating the balloon and driving the supporting part 13 to play a supporting role.

[0052] A more preferred embodiment is: Fig. 9 The ejection structure is provided with an ejection plate 32 and an ejection tube 31; the ejection plate 32 is arranged in the delivery tube 2, and the ejection plate 32 contacts the support structure to play an ejection role. The first end of the ejection tube 31 is connected to the ejection plate 32, and the second end is arranged outside the delivery tube 2. The movement of the ejection tube 31 drives the ejection plate 32 to play a role. A through hole is set in the center of the ejection plate 32 to allow the filling tube and the guide wire 4 to pass through, and the ejection tube 31 allows the filling tube and the guide wire 4 to pass through. Alternatively, the ejection tube 31 can be replaced with a double ejection rod structure, and the double ejection rods are symmetrically arranged on the ejection plate 32.

[0053] A more preferred embodiment is that the outer diameter of the delivery tube 2 is in the range of 2-3 mm. This arrangement can ensure that the delivery tube 2 passes through the fallopian tube smoothly and that there is no damage to the fallopian tube when the delivery tube 2 enters the designated position.

[0054] How to use:

[0055] S1: Insertion of guide wire 4: The cut-off fallopian tube is divided into the first fallopian tube 51 away from the uterus and the second fallopian tube 52 connected to the uterus. Under the observation of hysteroscopy and laparoscopy, the guide wire 4 is first inserted into the cut-off part of the fallopian tube through the vagina; then into the first fallopian tube 51,

[0056] S2: Insertion of the delivery tube 2: Under the guidance of the guide wire 4, the delivery tube 2 provided with two supporting structures is introduced into the first section of the fallopian tube 51, and then under the observation of the laparoscope, the delivery tube 2 enters to a position 1-3 mm away from the edge of the first section of the fallopian tube 51 and stops. After the delivery tube 2 enters the edge of the first section of the fallopian tube 51, the advancement distance of the delivery tube 2 is observed at the rear end.

[0057] S3: Setting of the first support structure 11: using the pushing structure to push the first support structure 11 from the delivery tube 2 into the first section of the fallopian tube 51, and ensuring that the first support structure 11 completely enters the first section of the fallopian tube 51, the first support structure close to the edge of the first section of the fallopian tube 51 is the first end, and finally the distance between the first end and the edge of the first section of the fallopian tube 51 is 1-3mm; then withdraw the delivery tube 2, withdraw the delivery tube 2 from the first section of the fallopian tube 51 to separate the first support structure 11 from the second support structure 12, and then use the filling tube 15 to fill the balloon part 14 of the first support structure 11, and support the first section of the fallopian tube 51 through the propped up first support structure 11;

[0058] S4: Setting of the second support structure 12: withdraw the delivery tube 2 into the second fallopian tube 52, and control the distance between the end of the delivery tube 2 and the edge of the second fallopian tube 52 to be the length of the support structure plus 1-3 mm; when the delivery tube 2 is observed to be withdrawn into the second fallopian tube 52 through laparoscopy, the moving distance of the delivery tube 2 can be observed in vitro, and a distance of the length of the support structure plus 1-3 mm can be observed; then the delivery tube 2 stops withdrawing, the position of the delivery tube 2 remains unchanged, and the second support structure 12 is pushed out of the delivery tube 2 through the pushing structure; then the balloon part 14 of the second support structure 12 is inflated by the inflation tube 15, and the second fallopian tube 52 is supported by the propped-up second support structure 12;

[0059] S5: Docking of fallopian tubes: Under laparoscopic observation, the filling tube 15 on the first supporting structure 11 is pulled back to drive the fallopian tube supported by the first supporting structure 11 to move, and the first supporting structure 11 is controlled to move toward the second supporting structure 12. During the process, the direction can be controlled by the operating instrument of the laparoscope, and finally the first supporting structure 11 and the second supporting structure 12 are docked; at the same time, the first section of the fallopian tube 51 and the second section of the fallopian tube 52 supported by the two are docked.

[0060] S6: Fallopian tube suturing: Under laparoscopic observation, the docked fallopian tubes are sutured;

[0061] S7: Withdrawal of the recanalization device: first, deflate the balloon parts 14 of the two supporting structures, then push the delivery tube 2 forward, and at the same time withdraw the inflation tube 15 of the second supporting structure 12, so that the second supporting structure 12 enters into the delivery tube 2, and continue to withdraw the inflation tube 15 until the second supporting structure 12 enters into the original position in the delivery tube 2, which can be achieved by setting a marking line on the inflation tube 15; then push the delivery tube 2 forward and at the same time withdraw the inflation tube 15 of the first supporting structure 11, so that the first supporting structure 11 enters into the delivery tube 2, and continue to withdraw the inflation tube 15 until the first supporting structure 11 enters into the original position in the delivery tube 2, and then withdraw the delivery tube 2 out of the body.

[0062] Example 2

[0063] A transvaginal fallopian tube recanalization system includes the fallopian tube recanalization device, a laparoscope system and a hysteroscope system according to the embodiment; it should be noted that the cut fallopian tube is divided into a first fallopian tube 51 away from the uterus and a second fallopian tube 52 connected to the uterus.

[0064] The system further comprises: a guide wire 4 delivery unit: observing the movement of the guide wire 4 under the hysteroscope and the laparoscope, and pushing the guide wire 4 forward to enter the cut-off part of the fallopian tube, and then enter the first section of the fallopian tube 51;

[0065] The delivery tube 2 placement unit controls the delivery tube 2 to be guided into the first section of the fallopian tube 51 under the guidance of the guide wire 4;

[0066] The first support structure 11 placement unit: control the pushing structure to push the first support structure 11 from the delivery tube 2 into the first section of the fallopian tube 51, and ensure that the first support structure 11 completely enters the first section of the fallopian tube 51; then control the withdrawal of the delivery tube 2, the delivery tube 2 withdraws from the first section of the fallopian tube 51 so that the first support structure 11 is separated from the second support structure 12, and then control the filling structure to feed the filling tube 15 with filling material, the filling material is fed to the balloon part 14 of the first support structure 11, the balloon part 14 is inflated and drives the support part 13 of the first support structure 11 to be propped up, and then the first section of the fallopian tube 51 is supported by the first support structure 11;

[0067] The second support structure 12 is inserted into the unit: the delivery tube 2 is withdrawn into the second section of the fallopian tube 52, and then the delivery tube 2 is stopped from being withdrawn, the position of the delivery tube 2 is kept unchanged, and the pushing structure is controlled to push the second support structure 12 out of the delivery tube 2; then the filling structure is controlled to convey the filling material to the filling tube 15, and the filling material is conveyed to the balloon part 14 of the second support structure 12, and the balloon part 14 is inflated and drives the supporting part 13 of the second support structure 12 to be propped up, so that the second section of the fallopian tube 52 is supported by the second support structure 12;

[0068] The fallopian tube docking unit: under laparoscopic observation, the filling tube 15 on the first supporting structure 11 is controlled to be withdrawn, so as to drive the first section of the fallopian tube 51 supported by the first supporting structure 11 to move, and the first supporting structure 11 is controlled to move toward the second supporting structure 12 until the first supporting structure 11 and the second supporting structure 12 are docked, and at the same time, the first section of the fallopian tube 51 and the second section of the fallopian tube 52 supported by the two are docked.

[0069] Fallopian tube suturing unit: Under laparoscopy, control the suturing instrument that enters through the laparoscope to complete the suturing of the docked fallopian tubes;

[0070] Recanalization device withdrawal unit: control the deflation of the balloon parts 14 of the two support structures, then control the forward push of the delivery tube 2, and at the same time control the withdrawal of the inflation tube 15 of the second support structure 12, so that the second support structure 12 enters the delivery tube 2; continue to control the withdrawal of the inflation tube 15 until the second support structure 12 completely enters the delivery tube 2; then push the delivery tube 2 forward and at the same time withdraw the inflation tube 15 of the first support structure 11, so that the first support structure 11 enters the delivery tube 2, continue to withdraw the inflation tube 15 until the first support structure 11 enters the original position in the delivery tube 2, and then withdraw the delivery tube 2 out of the body. Preferably, the second support structure 12 is controlled to withdraw to the initial position in the delivery tube 2.

[0071] A more preferred embodiment is as follows: the delivery tube 2 insertion unit controls the delivery tube 2 to stop after reaching a position 1-3 mm away from the edge of the first section of the fallopian tube 51 under laparoscope observation; the first end of the first support structure close to the edge of the first section of the fallopian tube 51 is the first end, and the first support structure 11 insertion unit controls the push-out structure to make the first end of the first support structure 11 1-3 mm away from the edge of the first section of the fallopian tube 51; the second support structure 12 insertion unit controls the end of the delivery tube 2 to reach a position where the distance from the edge of the second section of the fallopian tube 52 is the length of the support structure plus 1-3 mm, specifically, when the delivery tube 2 is observed to retreat to the second section of the fallopian tube 52 by laparoscope, the moving distance of the delivery tube 2 is observed in vitro, and until it retreats to a distance of the length of a support structure plus 1-3 mm, the delivery tube 2 is controlled to push out the second support structure 12 without moving; the arrangement of the above-mentioned units can mainly ensure that the end of the support structure is at a certain distance from the edge of the fallopian tube after being inserted and filled, so that it can be effectively docked during docking, leaving an overlapping suture area to ensure the suture effect.

[0072] The technical solutions in the embodiments of the present invention are clearly and completely described above through specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation methods. In the absence of conflict, the above embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

Claims

1. A transvaginal fallopian tube recanalization device, comprising: Support structures, 2 in number, namely a first support structure and a second support structure; Used to support two sections of fallopian tubes, each supporting structure includes A balloon part, wherein a through channel is arranged in the center of the balloon part; A support part is arranged outside the balloon part, and the support part and the balloon part move forward and backward at the same time; and An inflation tube connected to the balloon part is used to inflate the balloon part, thereby driving the supporting part outside the balloon part to play a supporting role, wherein the inflation tube of one balloon part passes through the through-channel of the other balloon part; and the end of the inflation tube is connected to the inflation structure; The delivery tube has two support structures disposed therein. The support structures are closely attached to the inner wall of the delivery tube. The positions of the support structures and the delivery tube remain unchanged without external force. The filling tubes on the two support structures are introduced to the outside of the delivery tube through the delivery tube. The delivery tube is used to deliver the support structures to the two cut-off fallopian tubes through the vagina. A push-out structure, the first end of which is disposed inside the delivery pipe, and the second end of which is disposed outside the delivery pipe, and the push-out structure pushes the supporting structures inside the delivery pipe out of the delivery pipe one by one; and The guide wire, the through channel of the delivery tube and the balloon part are sleeved on the outside of the guide wire, and the delivery tube and the supporting structure move along the guide wire.

2. The recanalization device according to claim 1, characterized in that: The pushing structure pushes the first support structure out of the delivery tube, withdraws the delivery tube after pushing it out, and inflates the balloon part of the first support structure through the inflation tube, while driving the support part to support the first section of the fallopian tube; Then, the second support structure is pushed out from the delivery tube, and the inflation tube inflates the balloon portion of the second support structure, thereby driving the support portion to support the second section of the fallopian tube; Pulling the inflation tube connected to the balloon portion of the first support structure drives the first support structure to approach the second support structure, thereby achieving docking between the first support structure and the second support structure.

3. The recanalization device according to claim 2, characterized in that: A guide portion extending outward from the support portion is provided at one end of each support portion, which is used to guide the support portion into the delivery tube when withdrawn; the inner and outer diameters of the first end of the guide portion are consistent with those of the main body of the support portion, the inner and outer diameters of the second end of the guide portion are smaller than the inner and outer diameters of the first end, and the inner diameter of the second end of the guide portion allows the passage of a guide wire and an inflation tube; the size of the guide portion transitions smoothly from the first end to the second end.

4. The recanalization device according to claim 3, characterized in that: An inward-retracting structure is respectively arranged at two ends of the supporting part of the first supporting structure.

5. The recanalization device according to claim 3, characterized in that: The support part is attached to the outside of the balloon part, and the support part is a hole-shaped bracket or a plurality of hard support rods or support sheets attached to the outside of the balloon part.

6. The recanalization device according to claim 5, characterized in that: The supporting part comprises a plurality of supporting plates, which play a supporting role for the fallopian tubes. An adduction plate is arranged at the end of the supporting plate. The plurality of supporting plates form the supporting part, and the adduction plates at the end thereof surround the guiding part.

7. The recanalization device according to claim 6, characterized in that: 4-8 support sheets are arranged around the balloon portion.

8. The recanalization device according to claim 2, characterized in that: The support part is a hard support part, the length of the balloon part exceeds more than two-thirds of the length of the support part, and the distance between the edges of both ends of the inflated balloon part and the edge of the main body of the support part is greater than 3mm.

9. The recanalization device according to claim 8, characterized in that: The main body of the support portion has a length ranging from 1 to 2 cm, and the axial length of the guide portion is less than 0.5 mm.

10. The recanalization device according to claim 9, characterized in that: Scale lines are set on the outside of the delivery pipe.

11. The recanalization device according to claim 2, characterized in that: The balloon part of each supporting structure is provided with an inflation tube, the rear end of which is connected to the inflation structure, which is a syringe or an electric inflation structure, the rear end of which is connected to a connector with a one-way valve allowing air intake, the connector is connected to the inflation structure to complete the inflation action, and the inflation state is maintained after the inflation structure is removed; deflation is performed after the connector is removed.

12. The recanalization device according to claim 11, characterized in that: The inflation tube is arranged on one side of the balloon and inflates the balloon from the bottom.

13. The recanalization device according to claim 2, characterized in that: The ejection structure is provided with an ejection plate and an ejection tube; the ejection plate is arranged in the conveying tube, and the ejection plate contacts the supporting structure to play an ejection role. The first end of the ejection tube is connected to the ejection plate, and the second end is arranged outside the conveying tube. The movement of the ejection tube drives the ejection plate to play a role.

14. The recanalization device according to claim 13, characterized in that: A through hole is set in the center of the ejection plate to allow the inflation tube and the guide wire to pass through, and the ejection tube allows the inflation tube and the guide wire to pass through; or the ejection tube is replaced with a double ejection rod structure, and the double ejection rods are symmetrically set on the ejection plate.

15. The recanalization device according to claim 2, characterized in that: The outer diameter of the delivery tube ranges from 2-3 mm.

16. A transvaginal fallopian tube recanalization system, characterized in that: The system comprises the fallopian tube recanalization device according to any one of claims 2 to 15, and the system further comprises a laparoscope system and a hysteroscope system; the cut fallopian tube is divided into a first fallopian tube away from the uterus and a second fallopian tube connected to the uterus; The system also includes: Guidewire insertion unit: observe the movement of the guidewire under the hysteroscope and laparoscopy, and push the guidewire forward to the cutoff part of the fallopian tube, and then into the first section of the fallopian tube; Delivery tube placement unit: controls the delivery tube to be guided into the first section of the fallopian tube under the guidance of the guide wire; Fallopian tube suturing unit: controls the suturing instrument introduced through the laparoscope to complete the suturing of the fallopian tube.

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