Hysteroscope uterine horn tissue excision device

Abstract

The invention relates to the technical field of medical instruments, in particular to a hysteroscope uterine horn tissue excision device which comprises a hysteroscope and further comprises an incision device, and the incision device is arranged in the hysteroscope and extends out of the hysteroscope. The incision device comprises a pressing and pushing mechanism and a rotary incision mechanism, the pressing and pushing mechanism extends into the hysteroscope from the bottom of the hysteroscope, and the rotary incision mechanism is connected to the tail end of the pressing and pushing mechanism; the rotary incision mechanism is used for excising to-be-cut tissues, and the rotary incision mechanism is deflected by an angle through the pressing and pushing mechanism. Through pressing operation of the pressing and pushing mechanism, an incision tool bit of the rotary incision mechanism is subjected to angle deflection, accurate excision of uterine horn tissue is achieved, the tedious operation of excision through other surgical instruments is avoided, the working efficiency is improved, and the success rate of an operation is also improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a hysteroscope uterine horn tissue resection device. Background Art

[0002] Hysteroscopy is a new minimally invasive gynecological diagnosis and treatment technology. It is a fiber optic endoscope used for intrauterine examination and treatment, including a hysteroscope energy system, a light source system, a perfusion system, and an imaging system. It uses the front part of the mirror body to enter the uterine cavity, which has a magnifying effect on the observed part, and has become the preferred examination method for gynecological hemorrhagic diseases and intrauterine lesions intuitively and accurately.

[0003] The hysteroscope tissue resection system enters the uterus through the channel of the hysteroscope to resect fibroids and polyps. However, the existing hysteroscope tissue resection device has relatively poor safety during use. In addition, the angle at which the cutting knife extends is relatively fixed, making it difficult to meet the needs of different patients during surgery.

[0004] Patent No. CN 114209396 B discloses a hysteroscope tissue resection device, including a housing, a connection hole, a cutting protection device, a driving device, and a locking screw. In this hysteroscope tissue resection device, the rotation of the motor drives the rotation of the turntable, and the rotation of the turntable causes the slider and the rack to move horizontally back and forth through the column and the longitudinal groove. The horizontal back-and-forth movement of the rack drives the movable rod to move horizontally back and forth through the tooth engagement device, and the horizontal back-and-forth movement of the movable rod causes the blade to move obliquely along the inclined groove direction through the connecting rod, that is, to make the blade move horizontally and vertically. When the blade moves vertically, the knife groove will be exposed to contact the tissue to be cut. At the same time, the horizontal movement of the blade facilitates the cutting of the tissue to be cut. In this way, the resection can avoid the inconvenience and trouble caused by the medical staff manually moving the tool back and forth for resection. The second spring can ensure that the slider is always located on the right side of the chute after the motor stops, so as to ensure that the blade is located inside the knife groove after the resection stops, thus improving the safety during use.

[0005] In this hysteroscope tissue resection device, the tooth engagement device is provided. By driving the rotation head to rotate with an inner hexagon wrench, the tooth engagement block is driven to move downwards to separate from the rack. Then, after loosening the locking screw, the length of the cutting protection device extending out can be adjusted horizontally, thus meeting the needs of different lengths of the cutting protection device and also meeting the needs of different patients during surgery.

[0006] However, this hysteroscope tissue resection device controls the movement of the blade by a motor, and the angle between the blade and the tissue to be cut cannot be determined, and the angle cannot be adjusted as needed, nor can the angle between the blade and the tissue to be cut be determined according to the horizontal movement distance of the blade. When the blade moves vertically, it does not have a structure to prevent the blade from being stuck, which is likely to cause the failure of the surgery. Summary of the Invention

[0007] In view of the above problems, the present invention aims to provide a hysteroscope uterine horn tissue resection device, which has a simple structure, is convenient to operate, and the deflection angle of the cutting head is judged according to the distance of the propulsion scale set on the pressing rod, improving the work efficiency; such resection can avoid the inconvenience and trouble caused by the medical staff manually moving the cutting tool repeatedly for resection; and improves the safety during use.

[0008] The main idea of the technical solution adopted by the present invention: Pressing propulsion mechanism: By using a pressing rod provided with a propulsion scale, the pressing block is connected to the propulsion rod and the telescopic rod. When the pressing block is pressed, the propulsion rod advances, the telescopic rod shortens, and at the same time the spring is compressed; Rotating cutting mechanism: While the propulsion rod advances, the rotating rod is linked to deflect, and at the same time drives the cutting head axially connected to the cutting long rod to deflect, and the deflection angle is judged according to the distance of the propulsion scale set on the pressing rod. It improves the work efficiency; such resection can avoid the inconvenience and trouble caused by the medical staff manually moving the cutting tool repeatedly for resection; and improves the safety during use.

[0009] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A hysteroscope uterine horn tissue resection device includes a hysteroscope and also includes a cutter. The cutter is placed inside the hysteroscope and extends outside the hysteroscope. The cutter includes a pressing propulsion mechanism and a rotating cutting mechanism. The pressing propulsion mechanism extends into the hysteroscope from the bottom of the hysteroscope, and the rotating cutting mechanism is connected to the end of the pressing propulsion mechanism; the rotating cutting mechanism is used to resect the tissue to be cut, and the rotating cutting mechanism deflects the angle through the pressing propulsion mechanism.

[0010] Preferably, the pressing and recommending structure includes a pressing component, a telescopic rod, a handle and a propulsion rod; the pressing component includes a pressing block and a pressing rod with a scale. The inner side of the pressing block is connected to the head end of the pressing rod; the inner side of the pressing block is rotatably connected to the top of the telescopic rod; the head end of the propulsion rod is connected to the top end of the telescopic rod, and the end is connected to the rotating cutting mechanism; the outer side of the handle is connected to the bottom of the telescopic rod.

[0011] Preferably, the rotating cutting mechanism includes a cutting long rod and a cutting head; the head end of the cutting long rod is connected to the inner side of the top end of the handle, and the end of the cutting long rod is axially movably connected to the cutting head.

[0012] Preferably, the rotating cutting mechanism further includes a rotating rod. The head end of the rotating rod is rotatably connected to the end of the propulsion rod, and the end of the rotating rod is rotatably connected to the head end of the cutting head.

[0013] Preferably, a spring is connected between the propulsion rod and the cutting long rod near the middle position.

[0014] The beneficial effects of the present invention are as follows: Compared with the prior art, the improvements of the present invention lie in that 1. The pressing and pushing mechanism and the rotating cutting mechanism are integrally combined into a whole. By using the advancing scale provided on the pressing rod, the pressing block is connected to the pushing rod and the telescopic rod. When the pressing block is pressed, the pushing rod advances, the telescopic rod shortens, and at the same time the spring is compressed. While the pushing rod advances, the rotating rod is linked to deflect, and at the same time the cutting head axially connected to the cutting long rod is driven to deflect. The deflection angle is judged according to the distance of the advancing scale set on the pressing rod, which improves the working efficiency and the success rate of the operation; the advancing distance and the deflection angle can be adjusted according to needs, meeting the needs of different patients' surgeries; 2. The present invention has a reasonable and simple structure, low production cost, convenient installation, and complete functions. Here, through the pushing and rebounding of the pressing block and the telescopic rod, the cutting head contacts and cuts the tissue to be cut. Such cutting can avoid the inconvenience and trouble brought by the medical staff manually moving the biopsy forceps repeatedly for cutting, relieve the muscle fatigue of the medical staff's hands, and improve the working efficiency and the success rate of the operation at the same time; 3. The spring provided in the present invention can ensure that while the pushing rod advances, the rotating rod is linked to deflect, and at the same time the cutting head axially connected to the cutting long rod is driven to deflect, so as to ensure that the cutting head returns to its original state after the cutting stops, thus improving the safety during use; 4. The rotating rod provided in the present invention uses rotation to drive the rotating rod to rebound, preventing the cutting head from getting stuck and improving the success rate of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a hysteroscopic cornu tissue resection device of the present invention; Figure 2 is a schematic sectional view of a hysteroscopic cornu tissue resection device of the present invention; Figure 3 is an enlarged sectional view of part A of a hysteroscopic cornu tissue resection device of the present invention; Figure 4 is an enlarged sectional view of part B of a hysteroscopic cornu tissue resection device of the present invention; Figure 5 is a schematic internal structure diagram of a hysteroscopic cornu tissue resection device of the present invention; Figure 6 is a schematic sectional view of the internal structure of a hysteroscopic cornu tissue resection device of the present invention; Figure 7 is an enlarged sectional view of part C of a hysteroscopic cornu tissue resection device of the present invention; Figure 8 is an exploded view of part C of a hysteroscopic cornu tissue resection device of the present invention; Figure 9 This is a schematic structural diagram of a hysteroscope uterine horn tissue resection device of the present invention in the operating state; Figure 10 This is a schematic sectional view of a hysteroscope uterine horn tissue resection device of the present invention in the operating state; Figure 11 This is an enlarged view of the D - part section of a hysteroscope uterine horn tissue resection device of the present invention in the operating state; Figure 12 This is an enlarged view of the E - part section of a hysteroscope uterine horn tissue resection device of the present invention in the operating state; Wherein: 1. Hysteroscope, 2. Pressing and pushing mechanism, 2 - 1. Pressing component, 2 - 2. Telescopic rod, 2 - 3. Handle, 2 - 4. Pushing rod, 2 - 5. Pressing block, 2 - 6. Pressing rod, 3. Rotating incision mechanism, 3 - 1. Incision long rod, 3 - 2. Incision tool head, 3 - 3. Rotating rod, 4. Spring. Detailed implementation manners

[0016] In order to enable ordinary technicians in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be further described below in conjunction with the drawings and embodiments.

[0017] The hysteroscope tissue resection system enters the uterus through the channel of the hysteroscope to remove fibroids and polyps. The inventor has found that the existing hysteroscope tissue resection device has relatively poor safety during use. In addition, the angle at which the cutting tool extends is relatively fixed, making it difficult to meet the needs of different patients during surgery. Therefore, a hysteroscope uterine horn tissue resection device that can deflect the angle of the incision tool head through pressing operation is proposed.

[0018] Please refer to Figures 1 - 12 , as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, Figure 1 This is a schematic structural diagram of a hysteroscope uterine horn tissue resection device of the present invention; Figure 2 This is a schematic sectional view of a hysteroscope uterine horn tissue resection device of the present invention; Figure 3 This is an enlarged view of the A - part section of a hysteroscope uterine horn tissue resection device of the present invention; Figure 4This is an enlarged sectional view of part B of a hysteroscopic uterine horn tissue resection device of the present invention; the present invention provides a hysteroscopic uterine horn tissue resection device, including a hysteroscope 1, and further including a cutter. The cutter is placed inside the hysteroscope 1 and extends outside the hysteroscope. The cutter includes a pressing and pushing mechanism 2 and a rotating cutting mechanism 3. The pressing and pushing mechanism extends into the hysteroscope from the bottom of the hysteroscope, and the rotating cutting mechanism 3 is connected to the end of the pressing and pushing mechanism 2. The rotating cutting mechanism 3 is used to resect the tissue to be cut, and the rotating cutting mechanism deflects the angle through the pressing and pushing mechanism.

[0019] Hysteroscopic resection of uterine horn tissue is a surgical method for resection of diseased tissue in the uterine horn area through a minimally invasive instrument, the hysteroscope. The doctor inserts the hysteroscope through the vagina and cervix into the uterine cavity, first conducts a comprehensive examination of the uterine cavity to determine the location, size, and shape of the uterine horn lesion. Then, through the pressing operation on the pressing and pushing mechanism, the cutting blade head of the rotating cutting mechanism deflects the angle, achieving precise resection of the uterine horn tissue, avoiding the cumbersome operation of using other surgical instruments, improving work efficiency, and also improving the success rate of the surgery; the deflection angle can be adjusted as needed to meet the needs of different patients during surgery.

[0020] The hysteroscope 1 is a medical device used for gynecological examinations and surgeries. It is a slender tubular structure, generally about 3 - 7 mm in diameter. Its internal contains an optical system that can transmit the image in the uterine cavity to an external display device. The patient usually takes the lithotomy position. The doctor disinfects the vagina and cervix, and then slowly inserts the hysteroscope through the cervical canal into the uterine cavity. Under the action of the uterine cavity distending medium, the uterine cavity is fully distended, and then each part of the uterine cavity is carefully observed. The hysteroscope 1 is common prior art and can be realized by those skilled in the art, so it will not be elaborated here.

[0021] It should be noted that a cylindrical through - groove is provided along the length direction of the hysteroscope from the small - mouth end of the hysteroscope to two - thirds of its length, and the end of the through - groove near the large - mouth end of the hysteroscope is longitudinally concave, so that it is convenient for the fingers of medical staff to operate.

[0022] The cutter extends into the through - groove of the hysteroscope from the concave part at the bottom of the hysteroscope, runs through along the length direction of the hysteroscope, cooperates with the through - groove, and extends outside the small - mouth end of the hysteroscope.

[0023] As Figure 5 、 Figure 6 、 Figure 7 and Figure 8 shown, Figure 5 This is a schematic diagram of the internal structure of a hysteroscopic uterine horn tissue resection device of the present invention; Figure 6 This is a schematic sectional view of the internal structure of a hysteroscopic uterine horn tissue resection device of the present invention;Figure 7 This is an enlarged sectional view of part C of a hysteroscopic cornu tissue resection device of the present invention; Figure 8 This is an exploded view of part C of a hysteroscopic cornu tissue resection device of the present invention; The cutter is gun-shaped and includes a pressing and pushing mechanism 2 and a rotating cutting mechanism 3; The pressing and pushing mechanism 2 includes a pressing component 2-1, a telescopic rod 2-2, a handle 2-3 and a pushing rod 2-4; The pressing component 2-1 includes a pressing block 2-5 and a graduated pressing rod 2-6. The upper inner side of the pressing block 2-5 is connected to the head end of the pressing rod 2-6, and the end of the pressing rod 2-6 is a free end; The lower inner side of the pressing block 2-5 is hinged to the top of the telescopic rod 2-2 through a hinge to enable the telescopic rod to rotate. The middle part of the telescopic rod 2-2 is a telescopic area, and its telescopic length limits the movable range of the pressing block; The head end of the pushing rod 2-4 is sleeved outside the top end of the telescopic rod through a hinge. The pushing rod 2-4 runs through the inside of the hysteroscope through slot along the length direction of the hysteroscope, and the end is connected to the rotating cutting mechanism 3; The outer side of the handle 2-3 close to the pressing block is hinged to the bottom of the telescopic rod 2-2.

[0024] The rotating cutting mechanism 3 includes a cutting long rod 3-1 and a cutting head 3-2; The head end of the cutting long rod 3-1 is connected to the inner side of the top end of the handle 2-3, and the end of the cutting long rod 3-1 is axially movably connected to the cutting head 3-2.

[0025] The cutting long rod is hollow cylindrical, its outer diameter matches the diameter of the hysteroscope through slot, the inner diameter of the cutting long rod matches the outer diameter of the pushing rod, the outer side of the cutting long rod is fixedly connected to the hysteroscope through slot, and the outer side of the pushing rod is slidably connected to the inner wall of the cutting long rod.

[0026] It should be noted that the top end of the handle is integrally formed with the outer side wall of the cutting long rod; A groove matching the pressing rod is provided at the joint of the cutting long rod and the pressing rod 2-6, and the end of the pressing rod 2-6 is inserted into the groove, and the groove limits its position. The depth of the groove matches the movable range of the pressing block.

[0027] The cutting long rod has an axial bayonet near the small opening end of the hysteroscope, and the cutting head is hinged in the bayonet.

[0028] The rotating cutting mechanism 3 further includes a rotating rod 3-3. The head end of the rotating rod 3-3 is rotatably connected to the end of the pushing rod 2-4, and the end of the rotating rod 3-3 is rotatably connected to the head end of the cutting head 3-2. The length of the rotating rod is not greater than the movable range of the pressing block, and the outer diameter of the rotating rod is not greater than the inner diameter of the cutting long rod.

[0029] In addition, a spring 4 is connected between the pushing rod and the cutting long rod near the middle position. There is a stepped narrow opening at the middle joint of the pushing rod and the cutting long rod, and a spring is arranged therein. One end of the spring is fixedly connected to the pushing rod, and the other end is fixedly connected to the cutting long rod for resetting.

[0030] As Figure 9 , Figure 10 , Figure 11 and Figure 12 shown Figure 9 is a schematic structural view of a hysteroscope uterine horn tissue resection device of the present invention in a working state; Figure 10 is a schematic cross-sectional view of a hysteroscope uterine horn tissue resection device of the present invention in a working state; Figure 11 is an enlarged partial cross-section at part D of a hysteroscope uterine horn tissue resection device of the present invention in a working state; Figure 12 is an enlarged partial cross-section at part E of a hysteroscope uterine horn tissue resection device of the present invention in a working state; The pressing and pushing mechanism 2 and the rotating cutting mechanism 3 are integrally combined. By using the pushing scale provided on the pressing rod 2-6, the pressing block 2-5 is connected to the pushing rod 2-4 and the telescopic rod 2-2. When continuously pressing the pressing block 2-5, the pushing rod 2-4 advances, the telescopic rod 2-2 shortens, and at the same time the spring 4 is compressed. While the pushing rod 2-4 advances, the linkage rotating rod disengages from the cutting long rod and deflects, and at the same time drives the cutting tool head 3-2 axially connected to the cutting long rod 3-1 to deflect. The deflection angle is judged according to the distance of the pushing scale provided on the pressing rod 2-6, which improves the working efficiency and also improves the success rate of the operation; the pushing distance and the deflection angle can be adjusted according to needs, meeting the needs of different patients for surgical use.

[0031] The deflection angle is between 0° and 45°, and the maximum can reach 60°.

[0032] Through the pushing and rebounding of the pressing block 2-5 and the telescopic rod 2-2, the cutting tool head 3-2 contacts and resections the tissue to be resected. Such resection can avoid the inconvenience and trouble brought by the medical staff manually and repeatedly moving the biopsy forceps for resection, relieve the muscle fatigue of the medical staff's hands, and improve the working efficiency and the success rate of the operation at the same time.

[0033] The rotating rod 3-3 can rotate within a range of 90°, that is, the rotating rod 3-3 and the pushing rod 2-4 can rotate between 180° and 90°. Using the rotation to drive the rotating rod 3-3 to rebound can prevent the cutting tool head 3-2 from getting stuck, improving the success rate of the operation.

[0034] A spring 4 is connected between the push rod 2-4 and the incision long rod 3-1 near the middle position. After the force pressing the pressing block 2-5 disappears, the spring elasticity is restored, driving the push rod to move in the direction of the pressing block, the push rod drives the rotating rod to be retracted into the incision long rod, and the rotating rod drives the incision cutter head to restore the axial direction. It can ensure that the push rod 2-4 is pushed forward while the linkage rotating rod 3-3 is offset, and at the same time drive the incision cutter head 3-2 axially connected to the incision long rod 3-1 to deflect, so as to ensure that the incision cutter head 3-2 returns to its original state after stopping the excision, which also improves the safety during use.

[0035] The specific application cases of the hysteroscopic uterine horn tissue resection device of the present invention are: Hysteroscopic technology can be used to directly examine lesions in the uterine cavity, locate and collect lesion tissue for examination. The diagnosis is accurate, timely, comprehensive and intuitive, and cancer can be detected early. Fallopian tube catheterization, examination of fallopian tube patency, and unblocking of the interstitial part of the fallopian tube are accurate and effective. Hysteroscopic surgery can remove the endometrium, submucosal fibroids, endometrial polyps, uterine septum, intrauterine adhesions and foreign bodies with good efficacy, no need for laparotomy, less trauma, less bleeding, less pain and faster recovery.

[0036] Preoperative preparation: 1. Perform cardiopulmonary examination, measure blood pressure and pulse, check leucorrhea routine, and perform cervical scraping. 2. Selection of examination time: Except for special circumstances, it is generally appropriate to do it within 5 days after the end of menstruation.

[0037] Procedure: 1. Anesthesia and analgesia: You can choose any of the following: (1) Indomethacin suppository: 20 minutes before the examination, insert 50-100 mg of indomethacin suppository deep into the anus. (2) Paracervical nerve block anesthesia: Inject 5-10 ml of 1% procaine into each side of the cervix. (3) Endocervical mucosal surface anesthesia: Use a long cotton swab soaked in 2% lidocaine solution to insert into the endocervical canal, at the level of the internal cervical opening, and keep it for 1 minute. (4) Uterine mucosal spray anesthesia: 8 ml of 0.25% bupivacaine is sprayed on the surface of the endometrium through a special tube cavity injector, and the examination is performed 5 minutes later.

[0038] 2. Inspection method: Take the lithotomy position, routinely disinfect the vulva and vagina, clamp the anterior lip of the cervix with a cervical clamp, use a probe to find the depth and direction of the uterine cavity, and expand to 6.5-7 according to the outer diameter of the sheath. 5% glucose solution or saline is commonly used to distend the uterus. First, empty the air between the sheath and the optical tube, slowly insert the hysteroscope, turn on the light source, and inject the distending fluid. The distending pressure is 13-15kPa (1kPa=7.5mmHg). After the uterine cavity is filled, the field of vision is bright, and the mirror can be rotated and observed comprehensively in sequence. First check the fundus and the front, back, left and right walls of the uterine cavity, then check the uterine horns and fallopian tube openings. Pay attention to the morphology of the uterine cavity, whether there are abnormalities or space-occupying lesions of the endometrium, and if necessary, perform a localized biopsy. Finally, when the mirror is slowly pushed out, carefully examine the internal cervical os and cervical canal.

[0039] When using the hysteroscopic uterine angle tissue resection device, first fit the rotating incision mechanism 3 to the resection position, press the pressing block 2-5 according to the size of the tissue to be resected, push the push rod 2-4 to move axially in the direction of the tissue to be resected, the telescopic rod 2-2 to move axially in the direction of the tissue to be resected, and the handle 2-3 pushes the incision long rod 3-1 to move axially in the direction of the tissue to be resected. While the push rod 2-4 is pushed, the linkage rotating rod 3-3 is offset, and at the same time, the incision cutter head 3-2 axially connected to the incision long rod 3-1 is deflected. The deflection angle is determined according to the distance of the push scale set on the pressing rod 2-6, which improves work efficiency and the success rate of the operation; the push distance and deflection angle can be adjusted as needed to meet the needs of different patients for surgery. The rotation is used to drive the rotating rod 3-3 to rebound to prevent the incision cutter head 3-2 from getting stuck.

[0040] The pushing and rebounding of the pressing block 2-5 and the telescopic rod 2-2 make the incision blade 3-2 contact with the tissue to be cut for excision.

[0041] Postoperative precautions: The following points should be noted after hysteroscopic surgery: 1. It is generally best to perform hysteroscopic surgery 3-7 days after the menstruation is over. 2. Sexual intercourse is prohibited 3 days after menstruation or before surgery. 3. You can hold your urine appropriately before surgery to facilitate B-ultrasound monitoring during surgery. 4. Preoperative examination for hysteroscopic surgery: infectious disease examination (hepatitis B surface antigen, HIV, HCV, RPR), small liver function, kidney function, electrocardiogram, blood and urine routine, four coagulation tests, and leucorrhea routine. 5. Come to the hospital 1 week after surgery to obtain the pathological results and see a doctor. 6. There may be a small amount of vaginal bleeding within 2 months after hysteroscopy, and normal menstruation will come in the third month.

[0042] The invention has a reasonable and simple structure, low production cost, convenient installation, and complete functions, meets the surgical needs of different patients, improves work efficiency, improves the success rate of surgery, and improves safety during use.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hysteroscopic uterine horn tissue resection device, comprising a hysteroscope (1), characterized in that: It also includes a cutter, which is placed inside the hysteroscope (1) and extends outside the hysteroscope (1); The incision device comprises a pressing and propelling mechanism (2) and a rotating incision mechanism (3), wherein the pressing and propelling mechanism (2) extends from the bottom of the hysteroscope (1) into the interior of the hysteroscope (1), and the rotating incision mechanism (3) is connected to the end of the pressing and propelling mechanism (2); The rotary incision mechanism (3) is used to cut the tissue to be cut, and the rotary incision mechanism (3) is deflected at an angle by the pressing and pushing mechanism (2).

2. A hysteroscopic uterine horn tissue resection device according to claim 1, characterized in that: The pressing and pushing mechanism (2) comprises a pressing component (2-1), a telescopic rod (2-2), a handle (2-3) and a pushing rod (2-4); The pressing assembly (2-1) comprises a pressing block (2-5) and a pressing rod (2-6) with a scale, the inner side of the pressing block (2-5) is connected to the head end of the pressing rod (2-6), and the end of the pressing rod (2-6) is a free end; The inner side of the pressing block (2-5) is connected to the top end of the telescopic rod (2-2); The head end of the propulsion rod (2-4) is connected to the top end of the telescopic rod (2-2), and the tail end is connected to the rotating cutting mechanism (3); The outer side of the handle (2-3) is connected to the bottom of the telescopic rod (2-2).

3. A hysteroscopic uterine horn tissue resection device according to claim 2, characterized in that: The rotary incision mechanism (3) comprises an incision long rod (3-1) and an incision blade (3-2); the head end of the incision long rod (3-1) is connected to the inner side of the top end of the handle (2-3), and the tail end of the incision long rod (3-1) is movably connected to the incision blade (3-2) along the axial direction.

4. A hysteroscopic uterine horn tissue resection device according to claim 3, characterized in that: The rotary cutting mechanism (3) further comprises a rotating rod (3-3), the head end of the rotating rod (3-3) being rotationally connected to the tail end of the pushing rod (2-4), and the tail end of the rotating rod (3-3) being rotationally connected to the head end of the cutting blade (3-2).

5. A hysteroscopic uterine horn tissue resection device according to claim 4, characterized in that: A spring (4) is connected between the propulsion rod (2-4) and the cutout long rod (3-1) near the middle position.

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