Cervical conization auxiliary stitching instrument

Abstract

The cervical conization auxiliary stitching instrument comprises a straight rod guide seat, a supporting guide rod, a penetrating guide rod, a straight rod penetrating needle head and a stitching line, the supporting guide rod is arranged on the straight rod guide seat and is perpendicular to the straight rod guide seat, the penetrating guide rod is arranged at the upper end of the supporting guide rod, and the straight rod penetrating needle head is arranged at the lower end of the supporting guide rod. The threading guide rod can freely slide relative to the supporting guide rod in the axis direction of the threading guide rod, a first clamping mechanism is arranged at the front end of the threading guide rod, a second clamping mechanism is arranged at the front end of the straight rod guide seat, a threading hole is formed in the middle of the straight rod threading needle head, and one end of a suture line can be tied in the threading hole. When the auxiliary suturing instrument is used for suturing a conical tangent plane, the phenomenon that a cervical canal is oppositely penetrated and sutured is effectively avoided, meanwhile, the suturing instrument is used for achieving spiral distribution of the suturing line around a wound surface, then butt joint closing of the outer half portion and the inner half portion of the wound surface can be achieved by tensioning the suturing line, and the hemostatic effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cervical conization surgery, in particular to a cervical conization auxiliary suturing device. Background Art

[0002] High-grade cervical intraepithelial lesions are precursors of cervical cancer, including high-grade squamous intraepithelial lesions and adenocarcinoma in situ, with a high incidence. The model estimates that 15% to 23% of untreated high-grade cervical lesions will develop into invasive cancer in an average of 13 years, with a lifetime risk of 40%. 31% of patients who do not receive regular treatment will develop invasive cancer within 30 years; while the risk of cervical or vaginal vault cancer in women who receive conventional treatment is only 0.7% within 30 years. The treatment options for high-grade cervical intraepithelial lesions are cervical cone excision, including cold knife excision and loop electrosurgical excision procedure, which have comparable efficacy.

[0003] The cervix is ​​a cylindrical structure composed of fibrous connective tissue. Its upper end (uterine isthmus) is connected to the uterine cavity, and its lower end is free in the vagina (cervicovaginal part). The diameter of the cervix is ​​about 2.5-3.0 cm, and the total length is about 5 cm, accounting for about 1 / 3 of the length of the uterus. After the cervical artery enters the cervical tissue through the cervical exometrium, it branches step by step and the diameter becomes thinner. Therefore, the larger and deeper the range of cervical tissue resection, the higher the chance of bleeding. The length of cervical resection is determined according to the type of transformation zone. The routine steps require exposing the cervix, clamping the anterior and posterior lips of the cervix with two Allis forceps, inserting a dilator into the cervical os to indicate the direction of the cervical canal, and gradually tilting the blade inward by 30-40° to resect the cervix. Bleeding is prone to occur during the resection process. Suturing hemostasis is undoubtedly an effective hemostasis method, especially when there is a lot of bleeding on the wound surface. It can quickly close the blood vessels and stop bleeding, and it helps to close the wound surface, restore the anatomical morphology of the cervix, and reduce the incidence of unsatisfactory colposcopy after surgery. At present, when suturing the cervical cone section, the suture needle often penetrates the cervical canal due to the narrow cervical canal, which in turn leads to closure or further stenosis of the cervical canal. Although the current LEEP procedure reduces bleeding by electrocoagulation of the cone cut wound, large-scale electrocoagulation hemostasis, especially if the electrocoagulation destroys the cervical mucosa, is prone to cervical stenosis and adhesion, and there is also a risk of heavy bleeding from scabbing within 7-10 days. Summary of the invention

[0004] The purpose of the present invention is to provide a cervical conization auxiliary suturing device. During the cervical cold knife excision operation, when the auxiliary suturing device is used to perform the suturing operation of the cone section, the phenomenon of the cervical canal being sutured through is effectively avoided. At the same time, the suturing device is used to realize the spiral distribution of the suture thread around the wound surface, which is then conducive to the docking and closure of the outer half and the inner half of the wound surface by tightening the suture thread, thereby improving the hemostatic effect.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a cervical conization auxiliary suturing device, including a straight rod guide seat, a support guide rod, a penetration guide rod, a straight rod penetration needle, and a suture thread, wherein the support guide rod is arranged on the straight rod guide seat and the support guide rod and the straight rod guide seat are in a mutually perpendicular state, the penetration guide rod is arranged at the upper end of the support guide rod, the angle between the axis of the penetration guide rod and the axis of the straight rod guide seat is α, 30°≤α≤40°, the penetration guide rod can slide freely relative to the support guide rod along its axis direction, and a guide rod is arranged at the front end of the penetration guide rod. A first clamping mechanism, which can realize the clamping and releasing of the straight rod threading needle. A second clamping mechanism is arranged at the front end of the straight rod guide seat, which can realize the clamping and releasing of the straight rod threading needle. By pushing the threading guide rod, the front part of the straight rod threading needle clamped by its front end can be inserted into the second clamping mechanism. The straight rod guide seat, the supporting guide rod and the threading guide rod can rotate synchronously along the circumferential direction of the straight rod guide seat. A threading hole is arranged in the middle of the straight rod threading needle, and one end of the suture thread can be bolted in the threading hole.

[0006] Preferably, the penetration guide rod comprises a penetration outer sleeve, the front end of the penetration outer sleeve is tapered, and the front end and the rear end of the straight rod penetration needle are both tapered.

[0007] Preferably, the first clamping mechanism includes a positioning seat, a hollow conical chuck, a clamping pressure ring, a pressure rod, and a first spring, the positioning seat being fixedly arranged on the inner side of the front end of the introduction outer sleeve, and the positioning seat being provided with a first positioning groove adapted to the rear end of the straight rod introduction needle, the hollow conical chuck being fixedly arranged on the inner side of the front end of the introduction outer sleeve and being located in front of the positioning seat, the conical tip of the hollow conical chuck pointing to the positioning seat, the hollow conical chuck being composed of a plurality of trapezoidal elastic clips distributed in a circumferential direction, a clamping gap being provided between the upper ends of two adjacent trapezoidal elastic clips, the clamping pressure ring being movably sleeved on the inner side of the front end of the introduction outer sleeve and being located in the hollow conical chuck The pressure rod is sleeved on the inner side of the guide sleeve and is located behind the positioning seat. A plurality of first connecting rods are arranged at the front end of the pressure rod. The first connecting rod passes through the positioning seat and is fixedly connected to the rear end of the clamping ring. The first connecting rod can slide freely relative to the positioning seat. The first spring is clamped between the positioning seat and the pressure rod. A first elongated hole is arranged at the rear end of the guide sleeve. A first connecting plate passing through the first elongated hole is arranged at the rear end of the pressure rod. The first connecting plate can slide freely in the first elongated hole. A first clamping push plate located on the outside of the guide sleeve is arranged on the outside of the first connecting plate.

[0008] Furthermore, the straight rod guide seat comprises a straight rod outer sleeve, the front end of the straight rod outer sleeve is semicircular, and a through opening is arranged at the upper part of the front end of the straight rod outer sleeve.

[0009] Furthermore, the second clamping mechanism includes a fixed clamping head, a movable clamping head, a push rod, and a second spring, the fixed clamping head being fixedly arranged inside the front end of the straight rod outer sleeve, the movable clamping head being movably sleeved in the straight rod outer sleeve, the push rod being sleeved in the straight rod outer sleeve and the front end of the push rod being fixedly connected to the rear end of the movable clamping head through a second connecting rod, the second spring being sleeved on the second connecting rod, and the second spring being clamped between the movable clamping head and a limit plate fixedly arranged in the straight rod outer sleeve, the second connecting rod movably passes through the limit plate, a second long strip hole is arranged on the upper part of the rear end of the straight rod outer sleeve, and a second long strip hole is arranged on the push rod A second connecting plate is fixedly provided on the upper part and is set in the second elongated hole. The second connecting plate can slide freely in the second elongated hole. A second clamping push plate is provided on the outer side of the second connecting plate and is located on the outer side of the straight rod outer sleeve; a first clamping groove is provided on the rear side wall of the fixed clamping head, and a second clamping groove corresponding to the first clamping groove is provided on the front side wall of the movable clamping head. The first clamping groove and the second clamping groove are close to each other to form a second positioning clamping groove adapted to the front end of the straight rod piercing needle. Pushing the piercing guide rod can make the front end of the straight rod piercing needle be inserted into the second positioning clamping groove in a directional manner.

[0010] Furthermore, when the front end of the straight rod piercing needle is inserted into the second positioning clamping groove, a clamping gap is reserved between the fixed clamping head and the movable clamping head.

[0011] The cam is an assembly made of a first piece and a second piece, and the cam is adapted to engage the first piece and the second piece of the guide rail.

[0012] Furthermore, a distance measurement scale mark distributed along the length direction is arranged on one side of the front end of the straight rod outer sleeve, and the distance measurement starting end of the distance measurement scale mark is the front end of the straight rod outer sleeve.

[0013] The beneficial effects of the present invention are as follows: when performing the suturing operation on the wound surface of cervical conization, the front end of the straight rod guide seat is located in the cervical canal, so that when the straight rod penetration needle is inserted from the outside of the cervix into the cervical canal by using the penetration guide rod, the straight rod guide seat blocks the straight rod penetration needle, thereby avoiding the phenomenon that the cervical canal is penetrated by the straight rod penetration needle, thereby effectively preventing the cervical canal from being closed or further narrowed after suturing; the suture device can be used to realize the spiral distribution of the suture thread around the wound surface, and then by tightening the suture thread, the outer half and the inner half of the wound surface can be easily connected and closed, thereby improving the hemostatic effect. By alternately clamping and releasing the straight rod threading needle by the first clamping mechanism and the second clamping mechanism, it is easy to realize the spiral distribution of the suture thread in the wound surface area; by utilizing the precise guiding effect of the inclined guide tube, the straight rod threading needle can be smoothly and accurately inserted from the first clamping mechanism into the second clamping mechanism, thereby providing a guarantee for the spiral distribution of the suture thread; after the straight rod threading needle is clamped by the hollow conical chuck, by pushing the first clamping push plate, the clamping pressure ring presses the trapezoidal elastic clips toward the straight rod threading needle, thereby improving the clamping stability of the hollow conical chuck on the straight rod threading needle, making the straight rod threading needle The threading needle can be smoothly clamped and moved from the second clamping mechanism to the first clamping mechanism; by pushing the second clamping push plate, the movable clamping head can achieve tight compression of the straight rod threading needle, thereby facilitating the straight rod threading needle to be clamped and moved from the first clamping mechanism to the second clamping mechanism; by utilizing the flexible movement and positioning ability of the first sleeve on the outer sleeve of the straight rod and the telescopic adjustment and positioning ability of the telescopic rod in the fixed tube, the movement of the position of the supporting guide rod can be achieved while ensuring that the inclined guide tube can achieve precise guidance of the straight rod threading needle, thereby improving the flexibility of the present invention according to the changing requirements of the suturing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is the overall structural front view of the present invention;

[0017] Figure 3 It is a schematic diagram of the combination of a fixed clamping head and a movable clamping head;

[0018] Figure 4 It is a schematic diagram of the state where the hollow conical chuck is clamped on the straight rod piercing needle;

[0019] Figure 5 A partial longitudinal sectional view of the front end of the present invention;

[0020] Figure 6 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 7 for Figure 1 Enlarged view of point B in the middle;

[0022] Figure 8 for Figure 1 Enlarged view of point C in the middle;

[0023] Fig. 9 for Figure 5 Enlarged view of point D in the middle;

[0024] Fig.10 It is a schematic diagram of the state in which the suture thread penetrates the external tissue of the cone hole in the present invention;

[0025] Fig.11 Schematic diagram of the spiral distribution of sutures on the outer periphery of the conical surface of the conical cut hole;

[0026] In the figure: 1 straight rod guide seat, 11 straight rod outer sleeve, 111 through-hole, 112 second long hole, 113 first guide rail, 114 distance measurement scale mark, 115 limit plate, 12 fixed clamping head, 121 first clamping groove, 13 movable clamping head, 131 second clamping groove, 14 push rod, 141 second connecting rod, 142 second clamping push plate, 15 second spring, 2 support guide rod, 21 first sleeve, 22 fixed pipe, 23 telescopic rod, 24 inclined guide pipe, 3 A threading guide rod, 31 a threading outer sleeve, 311 a first long hole, 312 a third guide rail, 32 a positioning seat, 33 a hollow conical chuck, 331 a trapezoidal elastic clip, 34 a clamping pressure ring, 35 a pressure rod, 351 a first connecting rod, 352 a first clamping push plate, 36 a first spring, 4 a straight rod threading needle, 41 a threading hole, 5 a suture, 6 a lower end of the cervix, 61 a cervical canal, 62 a conical cutting hole, 621 an outer half, 622 an inner half, 101 a clamping gap, and 102 a clamping gap. DETAILED DESCRIPTION

[0027] The following will be combined with specific embodiments and attached Figure 1-11, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the preferred embodiments of the present invention, rather than all the embodiments. Those skilled in the art can make similar modifications without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0028] The present invention provides a cervical conization auxiliary suture device (such as Figure 1 As shown), it includes a straight rod guide seat 1, a supporting guide rod 2, a threading guide rod 3, a straight rod threading needle 4, and a suture 5. The supporting guide rod 2 is arranged on the straight rod guide seat 1 and the supporting guide rod 2 and the straight rod guide seat 1 are perpendicular to each other. The straight rod guide seat 1 is a straight rod structure as a whole. The threading guide rod 3 is arranged at the upper end of the supporting guide rod 2. The angle between the axis of the threading guide rod 3 and the axis of the straight rod guide seat 1 is α, 30°≤α≤40°, and the above range of α is basically the same as the cone cutting angle of the existing cervical cone cutting, so that after the cold knife cone cutting is completed, it can be used The present suture device is used in combination with the size of the tapered hole 62 to realize the directional penetration guidance of the suture thread 5; the penetration guide rod 3 can slide freely relative to the support guide rod 2 along its axial direction, and a first clamping mechanism is arranged at the front end of the penetration guide rod 3, and the first clamping mechanism can realize the clamping and release of the straight rod penetration needle 4. The first clamping mechanism is used to clamp the straight rod penetration needle 4, so that the penetration guide rod 3 drives the straight rod penetration needle 4 to move back and forth in a directional manner, and a second clamping mechanism is arranged at the front end of the straight rod guide seat 1, and the second clamping mechanism can realize the straight rod penetration needle 4 is clamped and released, and the straight rod threading needle 4 is clamped by the second clamping mechanism, so that the straight rod guide seat 1 drives the straight rod threading needle 4 to perform directional reciprocating movement; by pushing the threading guide rod 3, the front part of the straight rod threading needle 4 clamped by its front end can be inserted into the second clamping mechanism. By using the above operation, the straight rod threading needle 4 can be intermittently clamped and exchanged between the threading guide rod 3 and the straight rod guide seat 1 as needed, and then the straight rod threading needle 4 can be used to drive the suture 5 to perform continuous threading movement, and the straight rod guide seat 1, the supporting guide rod 2 and the threading guide rod 3 can be synchronously moved along the threading guide rod 3. The straight rod guide seat 1 rotates in the circumferential direction, and the straight rod guide seat 1, the supporting guide rod 2 and the penetration guide rod 3 rotate synchronously, which ensures the intermittent clamping and displacement accuracy of the straight rod penetration needle 4 between the first clamping mechanism and the second clamping mechanism, thereby providing a guarantee for the effective suturing and penetration of the suture 5; a threading hole 41 is set in the middle of the straight rod penetration needle 4, and one end of the suture 5 can be bolted in the threading hole 41. In actual application, after the suture 5 is connected and fixed to the straight rod penetration needle 4, the suture 5 follows the straight rod penetration needle 4 to perform the penetration and suturing action in the lower end 6 area of ​​the cervix.

[0029] On the basis of the above embodiment, the specific implementation of the penetration guide rod 3 is as follows: the penetration guide rod 3 includes a penetration outer sleeve 31, the penetration outer sleeve 31 is hollow, the front end of the penetration outer sleeve 31 is conical, and its front end is conical, which makes it easy for its front end to be directly and smoothly inserted into the tissue of the lower end 6 of the cervix under the guidance of the straight rod penetration needle 4. The front and rear ends of the straight rod penetration needle 4 are both conical, and the front end of the straight rod penetration needle 4 is conical, which is convenient for insertion into the tissue of the lower end 6 of the cervix, and the rear end is conical, which is convenient for smooth insertion into the first clamping mechanism set inside the penetration guide rod 3. The length of the straight rod penetration needle 4 can be designed according to the actual surgical operation environment requirements; further, the first clamping mechanism The specific implementation of the structure is as follows: the first clamping mechanism includes a positioning seat 32, a hollow conical chuck 33, a clamping ring 34, a pressure rod 35, and a first spring 36. The positioning seat 32 is fixedly arranged on the inner side of the front end of the introduction outer sleeve 31, and a first positioning groove adapted to the rear end of the straight rod introduction needle 4 is arranged on the positioning seat 32. When the rear end of the straight rod introduction needle 4 is inserted into the first positioning groove, the straight rod introduction needle 4 can no longer move backward relative to the introduction outer sleeve 31. The hollow conical chuck 33 is fixedly arranged on the inner side of the front end of the introduction outer sleeve 31 and is located in front of the positioning seat 32. The conical tip of the hollow conical chuck 33 points to the positioning seat 32. The hollow conical chuck 33 is formed by a circular The plurality of trapezoidal elastic clips 331 are arranged in a straight line, and a clamping gap 102 is arranged between the upper ends of two adjacent trapezoidal elastic clips 331. In practical applications, the inner diameter of the clamping circular hole formed at the upper ends of the plurality of trapezoidal elastic clips 331 is smaller than the diameter of the straight rod piercing needle 4. When the rear end of the straight rod piercing needle 4 passes through the clamping circular hole, the trapezoidal elastic clip 331 will be pushed outward for a certain distance. After being pushed out, the trapezoidal elastic clip 331 will undergo a certain degree of elastic deformation, and then use its elastic deformation recovery ability to apply a thrust to the outer side wall of the straight rod piercing needle 4, and then use a plurality of trapezoidal elastic clips 331 to clamp and fix the straight rod piercing needle 4. When the straight rod piercing needle 4 is separated from the hollow conical chuck 33, the straight rod piercing needle 4 will be clamped and fixed due to the existence of the hollow conical chuck 33. In the clamping gap 102, the trapezoidal elastic clip 331 can be restored to the initial state, and then prepare for the next clamping of the straight rod insertion needle 4; the clamping ring 34 is movably sleeved on the inner side of the front end of the insertion outer sleeve 31, and is located between the hollow conical clamp 33 and the positioning seat 32, the pressure rod 35 is sleeved on the inner side of the insertion outer sleeve 31 and is located behind the positioning seat 32, and a plurality of first connecting rods 351 are arranged at the front end of the pressure rod 35, and the first connecting rod 351 passes through the positioning seat 32 and is fixedly connected to the rear end of the clamping ring 34, and the first connecting rod 351 can slide freely relative to the positioning seat 32, and the first spring 36 is clamped between the positioning seat 32 and the pressure rod 35;In practical applications, after the hollow conical chuck 33 realizes the clamping and fixing of the straight rod piercing needle head 4, in order to improve its clamping stability for the straight rod piercing needle head 4, so that the straight rod piercing needle head 4 can move synchronously with the outer sleeve 31 of the dressing tube, the pressure rod 35 can be pushed to make the lower end of the clamping ring 34 press against the outer side of each trapezoidal elastic clip 331, thereby improving the clamping stability of the trapezoidal elastic clip 331 for the straight rod piercing needle head 4. In practical applications, when no thrust is applied to the pressure rod 35, the pressure rod 35 is pushed by the first spring 36 to make the clamping ring 34 and the trapezoidal elastic clip 331 in a separated state, so that the straight rod piercing needle head 4 can be re-engaged The trapezoidal elastic clip 331 is smoothly opened; a first elongated hole 311 is provided at the rear end of the insertion outer sleeve 31, and a first connecting plate penetrating the first elongated hole 311 is provided at the rear end of the pressure rod 35. The first connecting plate can slide freely in the first elongated hole 311, and a first clamping push plate 352 located outside the insertion outer sleeve 31 is provided outside the first connecting plate. By pushing the first clamping push plate 352, the movement of the pressure rod 35 in the insertion outer sleeve 31 can be smoothly realized. The rotation limit of the first connecting plate by the first elongated hole 311 can realize the rotation limit of the pressure rod 35 in the insertion outer sleeve 31. ;

[0030] On the basis of the above embodiment, the specific implementation of the straight rod guide seat 1 is as follows: the straight rod guide seat 1 includes a straight rod outer sleeve 11, the front end of the straight rod outer sleeve 11 is semicircular, and a through hole 111 is arranged at the upper part of the front end of the straight rod outer sleeve 11. The front end of the straight rod outer sleeve 11 is semicircular, which effectively prevents the straight rod outer sleeve 11 from damaging the side wall tissue of the cervical canal 61 when it moves back and forth in the cervical canal 61; further, the specific implementation of the second clamping mechanism is as follows: the second clamping mechanism includes a fixed clamping head 12, a movable clamping head 13, a push rod 14, and a second spring 15, the fixed clamping head 12 is fixedly arranged inside the front end of the straight rod outer sleeve 11, and the movable clamping head 13 is movably sleeved on the straight rod In the outer sleeve 11, the push rod 14 is sleeved in the straight rod outer sleeve 11 and the front end of the push rod 14 is fixedly connected to the rear end of the movable clamping head 13 through a second connecting rod 141. The second spring 15 is sleeved on the second connecting rod 141, and the second spring 15 is clamped between the movable clamping head 13 and a limit plate 115 fixedly set in the straight rod outer sleeve 11. In actual application, the thrust applied by the second spring 15 to the movable clamping head 13 is used to achieve a tight docking between the movable clamping head 13 and the fixed clamping head 12. The second connecting rod 141 movably passes through the limit plate 115. A second long strip hole 112 is set at the upper part of the rear end of the straight rod outer sleeve 11. A set of The second connecting plate in the second elongated hole 112 can slide freely in the second elongated hole 112. By using the second connecting plate to rotate and limit in the second elongated hole 112, the movable clamping head 13 can be effectively prevented from rotating in the straight rod outer sleeve 11. A second clamping push plate 142 located on the outside of the straight rod outer sleeve 11 is provided on the outside of the second connecting plate. By reciprocatingly pushing the second clamping push plate 142, the movable clamping head 13 can be reciprocated relative to the fixed clamping head 12. A first clamping groove 121 is provided on the rear side wall of the fixed clamping head 12, and a second clamping groove 131 corresponding to the first clamping groove 121 is provided on the front side wall of the movable clamping head 13. The first clamping When the groove 121 and the second clamping groove 131 are close together, a second positioning clamping groove adapted to the front end of the straight rod piercing needle 4 is formed. The inclination direction of the second positioning clamping groove is coaxially distributed with the inclination direction of the piercing guide rod 3, thereby ensuring that the piercing guide rod 3 can push the straight rod piercing needle 4 to be accurately inserted into the second positioning clamping groove, thereby facilitating the position switching of the straight rod piercing needle 4 between the piercing guide rod 3 and the straight rod guide seat 1. The straight rod piercing needle 4 can switch its position back and forth between the piercing guide rod 3 and the straight rod guide seat 1, which makes it convenient to use the straight rod piercing needle 4 to drive the suture thread 5 to form a spiral distribution on the conical surface of the conical hole 62, thereby facilitating the docking suturing of the conical surface, and then facilitating the rapid hemostasis during the cervical conization operation.When it is necessary to use the straight rod guide seat 1 to realize the outward pulling movement of the straight rod piercing needle 4, in order to ensure that the movable clamping head 13 can tightly clamp the straight rod piercing needle 4 and prevent the straight rod piercing needle 4 from falling off, when the front end of the straight rod piercing needle 4 is inserted into the second positioning clamping groove, a clamping gap 101 is reserved between the fixed clamping head 12 and the movable clamping head 13. Due to the existence of the clamping gap 101, when the movable clamping head 13 is pushed toward the fixed clamping head 12 by the second clamping push plate 142, the movable clamping head 13 will not be blocked, and then the second clamping push plate 142 can be pushed to realize the fixed clamping of the straight rod piercing needle 4 by the movable clamping head 13.

[0031] On the basis of the above embodiment, the specific implementation of the support guide rod 2 is as follows: the support guide rod includes a first sleeve 21, a fixed tube 22, a telescopic rod 23, and an inclined guide tube 24; the first sleeve 21 is slidably sleeved on the outside of the straight rod outer sleeve 11; a first slide groove is arranged on the inner side wall of the first sleeve 21; a first guide rail 113 arranged in the first slide groove is arranged on the straight rod outer sleeve 11; the first guide rail 113 is used to limit the rotation of the first sleeve 21, thereby effectively preventing the support guide rod 2 from rotating relative to the straight rod outer sleeve 11; a pressure bolt for adjusting the positioning of the first sleeve 21 on the straight rod outer sleeve 11 is arranged on the first sleeve 21; when it is necessary to fix the first sleeve 21 on the straight rod outer sleeve 11, the pressure bolt is tightened; the fixed tube 22 is vertically fixed on the side wall of the first sleeve 21; the lower end of the telescopic rod 23 is sleeved in the fixed tube 22; the telescopic rod 23 is inclined and can be easily adjusted. The upper end of the retractable rod 23 is fixedly connected to the inclined guide tube 24, and second guide rails are provided on both sides of the telescopic rod 23, and the second guide rails are sleeved in the second sliding grooves provided in the fixed tube 22. The clamping of the second guide rails in the second sliding grooves can effectively prevent the telescopic rod 23 from rotating in the fixed tube 22, and a pressing bolt for adjusting the positioning of the telescopic rod 23 in the fixed tube 22 is provided on the fixed tube 22. When it is necessary to position the telescopic rod 23 on the fixed tube 22, the pressing bolt can be tightened. The insertion outer sleeve 31 is sleeved in the inclined guide tube 24, and a third guide rail 312 is provided on the insertion outer sleeve 31. The third guide rail 312 is sleeved in the third sliding groove provided in the inclined guide tube 24. The clamping limit of the third guide rail 312 in the third sliding groove can effectively prevent the insertion outer sleeve 31 from rotating in the inclined guide tube 24, thereby ensuring the clamping accuracy of the insertion guide rod 3 to the straight rod insertion needle 4.

[0032] In order to facilitate the determination of the depth of the front end of the straight rod outer sleeve 11 inserted into the cervical canal 61, so as to roughly estimate the depth of the second positioning clamping groove in the cervical canal 61, a distance measurement scale mark 114 distributed along its length direction is set on one side of the front end of the straight rod outer sleeve 11. The distance measurement starting end of the distance measurement scale mark 114 is the front end of the straight rod outer sleeve 11. Since the distance between the center position of the second clamping positioning groove and the frontmost position of the straight rod outer sleeve 11 is fixed, by reading the scale mark corresponding to the cone top edge of the cone cutting hole 62, and then subtracting the distance value between the center position of the second clamping positioning groove and the frontmost position of the straight rod outer sleeve 11, the approximate depth of the second clamping positioning groove inserted into the cervical canal 61 can be obtained, thereby facilitating the guidance of the subsequent suturing process.

[0033] After the cervical conization is completed by cold knife excision, the steps of suturing the conization wound surface by using the present invention are as follows: the first step is to fix one end of the suture thread 5 on the threading hole 41 of the straight rod threading needle 4, and then, one end of the straight rod threading needle 4 is inserted into the front end of the threading guide rod 3, and the straight rod threading needle 4 is positioned on the threading guide rod 3 by using the first clamping mechanism provided in the threading guide rod 3. After the straight rod threading needle 4 is positioned on the threading guide rod 3, a certain distance is maintained between the straight rod threading needle 4 and the front end of the straight rod guide seat 1; the second step is to insert one end of the front end of the straight rod guide seat 1 into the cervical canal 61, and then, the second positioning clamping is roughly realized by using the distance measuring scale 114. The depth positioning of the groove in the cervical canal 61 and the depth positioning position of the second positioning clamping groove in the cervical canal 61 need to ensure that the straight rod guide needle 4 is inserted into the second positioning clamping groove from the front of the cone top of the cone cutting hole 62, so that the straight rod guide needle 4 can be used to realize the suture 5 to be threaded outside the cone cutting surface of the cone cutting hole 62; the third step, after the straight rod guide seat 1 is determined in the depth position in the cervical canal 61, the penetration guide rod 3 is pushed so that the straight rod guide needle 4 at its front end is inserted into the tissue of the lower end 6 of the cervix, and then, by continuously pushing the penetration guide rod 3, the straight rod guide needle 4 is made to penetrate the side wall of the cervical canal 61 and accurately inserted into the second positioning clamping groove. At this time, the straight rod guide needle 4 can be used to realize the suture 5 in The fourth step is to guide the straight rod piercing needle 4 on the front side of the cone cutting hole 62 after completing the positioning of the straight rod piercing needle 4 in the second positioning clamping groove, push the second clamping push plate 142, so that the movable clamping head 13 can achieve tight clamping of the straight rod piercing needle 4, and in the process of continuously pushing the second clamping push plate 142, pull the piercing guide rod 3 out of the lower end of the cervix 6, and then pull the front end of the straight rod guide seat 1 out of the cervical canal 61. During this process, the straight rod piercing needle 4 is simultaneously pulled out of the cervical canal 61. When pulling the straight rod piercing needle 4 out of the cervical canal 61, it is necessary to ensure that the exposed end of the straight rod piercing needle 4 will not scratch the side wall of the cervical canal 61; the fifth step is to complete the external pulling of the straight rod guide seat 1, and then push the piercing guide rod 3 to the straight rod guide seat again. Move to the front end of the seat 1 until the upper end of the straight rod piercing needle 4 is inserted into the front end of the piercing guide rod 3 again, and then push the first clamping push plate 352 to make the hollow conical clamp 33 tightly clamp the straight rod piercing needle 4. In the process of continuously pushing the first clamping push plate 352, the second clamping push plate 142 is pushed backward to realize the clamping and release of the straight rod piercing needle 4 by the movable clamping head 13. After the second clamping push plate 142 is pushed backward, the piercing guide rod 3 is pulled to move backward. At this time, the movement of the piercing guide rod 3 synchronously drives the straight rod piercing needle 4 to move; the sixth step, after the piercing guide needle 3 is moved backward, the straight rod guide seat 1 is rotated a certain angle along its circumferential direction;Step 7: After the angle rotation of the straight rod guide seat 1 is completed, the second to sixth steps of the above steps are repeated in sequence, so as to achieve the spiral distribution of the suture thread 5 on the periphery of the tapered surface of the tapered hole 62 (such as; Fig.11 ), when the suture 5 is distributed in a circle around the outer periphery of the cone section, the insertion of the suture 5 is completed. When the insertion of the suture 5 is completed, the suture 5 is appropriately tightened so that the outer half 621 and the inner half 622 of the cone section can be docked and closed. After the outer half 621 and the inner half 622 are docked and closed using the tightened suture 5, the suture 5 is knotted and cut, thereby completing the hemostatic suturing process of cervical conization.

[0034] In the present invention, "left" and "right" are relative positions used to conveniently describe positional relationships, and therefore cannot be understood as absolute positions to limit the scope of protection.

[0035] Except for the technical features described in the specification, all other technical features are known technologies to those skilled in the art.

[0036] The above description in combination with the accompanying drawings has detailed the preferred implementation modes and embodiments of the present invention, but the present invention is not limited to the above implementation modes and embodiments. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the concept of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A cervical conization auxiliary suture device, characterized in that: The invention comprises a straight rod guide seat, a support guide rod, a threading guide rod, a straight rod threading needle, and a suture thread, wherein the support guide rod is arranged on the straight rod guide seat and the support guide rod and the straight rod guide seat are in a mutually perpendicular state, the threading guide rod is arranged on the upper end of the support guide rod, the angle between the axis of the threading guide rod and the axis of the straight rod guide seat is α, 30°≤α≤40°, the threading guide rod can slide freely relative to the support guide rod along its axis direction, a first clamping mechanism is arranged at the front end of the threading guide rod, and the first clamping mechanism can The straight rod piercing needle can be clamped and released. A second clamping mechanism is arranged at the front end of the straight rod guide seat. The second clamping mechanism can realize the clamping and release of the straight rod piercing needle. By pushing the piercing guide rod, the front part of the straight rod piercing needle clamped by its front end can be inserted into the second clamping mechanism. The straight rod guide seat, the supporting guide rod and the piercing guide rod can rotate synchronously along the circumferential direction of the straight rod guide seat. A threading hole is arranged in the middle of the straight rod piercing needle, and one end of the suture thread can be bolted in the threading hole.

2. A cervical conization auxiliary suture device according to claim 1, characterized in that: The penetration guide rod comprises a penetration outer sleeve, the front end of the penetration outer sleeve is in a cone shape, and the front end and the rear end of the straight rod penetration needle are both in a cone shape.

3. A cervical conization auxiliary suture device according to claim 2, characterized in that: The first clamping mechanism includes a positioning seat, a hollow conical chuck, a clamping pressure ring, a pressure rod, and a first spring. The positioning seat is fixedly arranged on the inner side of the front end of the insertion outer sleeve, and a first positioning groove adapted to the rear end of the straight rod insertion needle is arranged on the positioning seat. The hollow conical chuck is fixedly arranged on the inner side of the front end of the insertion outer sleeve and is located in front of the positioning seat, and the conical tip of the hollow conical chuck points to the positioning seat. The hollow conical chuck is composed of a plurality of trapezoidal elastic clips distributed in a circumferential direction, and a clamping gap is arranged between the upper ends of two adjacent trapezoidal elastic clips. The clamping pressure ring is movably sleeved on the inner side of the front end of the insertion outer sleeve and is located between the hollow conical chuck and Between the positioning seats, the pressure rod is sleeved on the inner side of the insertion outer sleeve and is located behind the positioning seat. A plurality of first connecting rods are arranged at the front end of the pressure rod. The first connecting rod passes through the positioning seat and is fixedly connected to the rear end of the clamping ring. The first connecting rod can slide freely relative to the positioning seat. The first spring is clamped between the positioning seat and the pressure rod. A first elongated hole is arranged at the rear end of the insertion outer sleeve. A first connecting plate passing through the first elongated hole is arranged at the rear end of the pressure rod. The first connecting plate can slide freely in the first elongated hole. A first clamping push plate located on the outside of the insertion outer sleeve is arranged on the outside of the first connecting plate.

4. The cervical conization auxiliary suture device according to claim 3, characterized in that: The straight rod guide seat comprises a straight rod outer sleeve, the front end of the straight rod outer sleeve is in a semicircular shape, and a through opening is arranged at the upper part of the front end of the straight rod outer sleeve.

5. The cervical conization auxiliary suture device according to claim 4, characterized in that: The second clamping mechanism includes a fixed clamping head, a movable clamping head, a push rod, and a second spring. The fixed clamping head is fixedly arranged inside the front end of the straight rod outer sleeve, the movable clamping head is movably sleeved in the straight rod outer sleeve, the push rod is sleeved in the straight rod outer sleeve and the front end of the push rod is fixedly connected to the rear end of the movable clamping head through a second connecting rod. The second spring is sleeved on the second connecting rod, and the second spring is clamped between the movable clamping head and a limit plate fixedly arranged in the straight rod outer sleeve. The second connecting rod movably passes through the limit plate. A second long strip hole is arranged on the upper part of the rear end of the straight rod outer sleeve. A second connecting plate is arranged to be set in the second elongated hole, and the second connecting plate can slide freely in the second elongated hole, and a second clamping push plate is arranged on the outside of the second connecting plate and located on the outside of the straight rod outer sleeve; a first clamping groove is arranged on the rear side wall of the fixed clamping head, and a second clamping groove corresponding to the first clamping groove is arranged on the front side wall of the movable clamping head, and the first clamping groove and the second clamping groove are close to each other to form a second positioning clamping groove adapted to the front end of the straight rod piercing needle, and pushing the piercing guide rod can make the front end of the straight rod piercing needle be inserted into the second positioning clamping groove in a directionally manner.

6. A cervical conization auxiliary suture device according to claim 5, characterized in that: When the front end of the straight rod piercing needle is inserted into the second positioning clamping groove, a clamping gap is reserved between the fixed clamping head and the movable clamping head.

7. The cervical conization auxiliary suture device according to claim 6, characterized in that: The support guide rod comprises a first sleeve, a fixed tube, a telescopic rod, and an inclined guide tube, the first sleeve being slidably sleeved on the outer side of the straight rod outer sleeve, a first slide groove being arranged on the inner side wall of the first sleeve, a first guide rail sleeved in the first slide groove being arranged on the straight rod outer sleeve, a pressing bolt for adjusting the positioning of the first sleeve on the straight rod outer sleeve being arranged on the first sleeve, the fixed tube being vertically fixedly arranged on the side wall of the first sleeve, the lower end of the telescopic rod being sleeved in the fixed tube, the upper end of the telescopic rod being fixedly connected with the inclined guide tube, second guide rails being sleeved in the second slide groove arranged in the fixed tube, a pressing bolt for adjusting the positioning of the telescopic rod in the fixed tube being arranged on the fixed tube, the threading outer sleeve being sleeved in the inclined guide tube, a third guide rail being sleeved in the third slide groove arranged in the inclined guide tube.

8. The cervical conization auxiliary suture device according to claim 7, characterized in that A distance measurement scale mark distributed along the length direction is arranged on one side of the front end of the straight rod outer sleeve, and the distance measurement starting end of the distance measurement scale mark is the front end of the straight rod outer sleeve.

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