Cervical cancer removal device

Abstract

The present invention discloses a cervical cancer excision device, comprising: a holding cup and a cutting device, wherein the holding cup has a holding cavity for holding biological tissue, and the holding cup is provided with a suture needle area made of soft material and a knife through hole arranged below the suture needle area; the cutting device comprises a cutting knife arranged in the holding cup, and a cutting drive device for driving the front end of the cutting knife to extend or retract from the knife through hole. The present invention provides a suture needle area made of soft material on the holding cup, so that during the operation, the suture needle can fix the vaginal stump to be removed on the outer wall of the holding cup by suturing in the suture needle area to form a closed space, and then drive the cutting knife to extend from the knife through hole below the suture needle area to cut the vagina. The present invention can prevent tumor cells on the cervix from falling into the abdominal cavity, causing local dissemination and implantation, and reduce the recurrence of tumors after surgery.

Description

Technical Field

[0001] The present invention relates to the technical field related to medical equipment, and in particular to a cervical cancer removal device. Background Art

[0002] In existing minimally invasive laparoscopic surgeries, cervical lifting cups are used for vaginal hysterectomy and treatment of other vaginal diseases. In existing laparoscopic surgeries for cervical cancer, a cervical lifting cup is used to lift the uterus, and then the diseased area of ​​the cervix is ​​removed through a laparoscope. However, since the uterus needs to be lifted with a cervical lifting cup during the operation, the cervical lifting cup will squeeze the tumor, causing cancer cells to fall off, and when the vagina is cut, cancer cells can easily enter the abdominal cavity and spread. The above problems are believed to be the main reasons for the low recurrence rate and survival rate after laparoscopic surgery for cervical cancer. Summary of the invention

[0003] Based on this, it is necessary to provide a cervical cancer removal device to address the technical problem that the existing laparoscopic surgery for cervical cancer easily leads to the spread of cancer cells.

[0004] The present invention provides a cervical cancer removal device, comprising: a receiving cup and a cutting device, wherein:

[0005] The receiving cup has a receiving cavity for receiving biological tissue, and the receiving cup is provided with a suture needle area made of soft material and a knife through hole arranged below the suture needle area;

[0006] The cutting device comprises a cutting knife arranged in the accommodating cup, and a cutting driving device driving the front end portion of the cutting knife to extend out of or retract from the knife through hole.

[0007] Furthermore, it also includes a suturing device, which includes one or more suturing needles arranged in the receiving cup and located in the suturing needle area, and a suturing drive device that drives the suturing needles to extend or retract from the receiving cup in the suturing needle area.

[0008] Furthermore, a barb is provided at the front end of the suture needle near the suture needle area.

[0009] Furthermore, the suturing device further comprises: a needle bin for accommodating the suturing needle, the needle bin being fixed to the inner wall of the containing cup and being located in the suturing needle area;

[0010] The needle bin is provided with needle holes matching the suture needles, the front end of each suture needle extends out from one of the needle holes, and the front end of the suture needle is closely attached to or partially inserted into the suture needle area;

[0011] A suturing drive spring matching the suturing needle is arranged in the needle bin, and a needle body protrusion is arranged on the suturing needle. One end of the suturing drive spring presses against the inner wall of the needle bin, and the other end presses against the needle body protrusion of the suturing needle.

[0012] The suturing drive device comprises a suturing needle ejecting buckle, and the suturing needle ejecting buckle clamps or releases the needle body protrusion.

[0013] Furthermore, the suturing drive device also includes: a pull rope connected to the rear end of the suturing needle.

[0014] Furthermore, the accommodating cup comprises an upper cup body and a lower cup body, the accommodating cavity and the suture needle area are arranged on the upper cup body, the cutting device is arranged on the lower cup body, and the lower cup body can rotate around the circumference of the upper cup body.

[0015] Furthermore, the cutting drive device includes a cutting knife lever, a lever shaft and a cutting knife reset spring, the lever shaft passes through the cutting knife lever and is fixed in the lower cup body, the cutting knife lever rotates around the lever shaft, one end of the cutting knife lever serves as a driving end and contacts with the rear end of the cutting knife, and the other end serves as a driving end and extends out of the lower cup body, the cutting knife reset spring is sleeved on the cutting knife, and one end of the cutting knife reset spring is connected to the inner wall of the lower cup body, and the other end presses against the rear end of the knife.

[0016] Furthermore, a knife protection cover is provided on the outer wall of the accommodating cup, and the knife protection cover covers the knife through hole.

[0017] Furthermore, the cutting drive device can drive the front end of the cutting knife to extend out of or retract into the knife protection cover.

[0018] Furthermore, the cutting knife is a cutting blade or an electric cutting knife.

[0019] The present invention provides a suture needle area made of soft material on the accommodation cup, so that during the operation, the suture needle can fix the vaginal stump to be removed on the outer wall of the accommodation cup by suturing in the suture needle area to form a closed space, and then drive the cutting knife to extend from the knife through hole below the suture needle area to cut the vagina. The present invention can prevent tumor cells on the cervix from falling into the abdominal cavity, causing local dissemination and implantation, and reduce the recurrence of tumors after surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a cervical cancer removal device of the present invention;

[0021] Figure 2 It is a cross-sectional view of a cervical cancer removal device of the present invention;

[0022] Figure 3 A schematic diagram of the use of a cervical cancer removal device of the present invention;

[0023] Figure 4 A schematic diagram of a suture needle of a cervical cancer excision device of the present invention being extended and used;

[0024] Figure 5 A schematic diagram of the retraction and use of a suture needle of a cervical cancer excision device of the present invention;

[0025] Figure 6 This is a schematic diagram of a cervical cancer removal device of the present invention with a cutting knife extended for use.

[0026] Marking Description:

[0027] 1-accommodating cup; 11-accommodating cavity; 12-sewing needle area; 13-knife through hole; 14-knife protection cover; 101-upper cup body; 102-lower cup body; 2-cutting device; 21-cutting knife; 211-front end of the knife; 212-rear end of the knife; 22-cutting knife lever; 221-driving end; 222-sliding end; 23-sliding lever shaft; 24-cutting knife reset spring; 25-rotating handle; 26-knife magazine; 3-suturing device; 31-suturing needle; 311-front end of the needle; 312-needle body protrusion; 313-barb; 32-needle magazine; 33-suturing drive spring; 34-suturing needle pop-up buckle; 35-pull rope; 36-buckle push rod; 37-buckle connecting rod; 38-pull rope catheter; 381-pull rope catheter handle; 4-push rod; 5-cervix; 6-vagina; 7-uterus. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Embodiment 1

[0030] like Figure 1 and Figure 2 As shown, the present invention provides a cervical cancer removal device, comprising: a receiving cup 1, and a cutting device 2, wherein:

[0031] The receiving cup 1 has a receiving cavity 11 for receiving biological tissues, and the receiving cup 1 is provided with a suture needle area 12 made of soft material and a knife through hole 13 provided below the suture needle area 12;

[0032] The cutting device 2 includes a cutting knife 21 disposed in the accommodating cup 1 , and a cutting driving device for driving a front end portion 211 of the cutting knife 21 to extend from or retract into the knife through hole 13 .

[0033] The up and down directions of the present invention are based on the opening of the receiving cup 1, the opening direction close to the receiving cup 1 is the upward direction, and the opening direction away from the receiving cup 1 is the downward direction. The component with a small distance from the opening of the receiving cup 1 is the upper component, and the component with a large distance from the opening of the receiving cup 1 is the lower component. The knife through hole 13 is arranged below the sewing needle area 12, which means that the distance between the knife through hole 13 and the opening of the receiving cup 1 is greater than the distance between the sewing needle area 12 and the opening of the receiving cup 1.

[0034] like Figure 3 As shown, the biological tissues are the cervix 5 and the vagina 6. During the operation, the holding cup 1 is lifted up to hold the connection between the cervix 5 and the vagina 6, the vagina 6 is sleeved on the outer wall of the holding cup 1, and the cervix 5 is contained in the holding cavity 11. For the convenience of explanation in the attached drawings, there is a certain gap between the vagina 6 and the outer wall of the holding cup 1. In fact, since the vagina 6 is elastic, the vagina 6 will be tightly sleeved on the outer wall of the holding cup 1. Then, the stump of the vagina 6 is fixed to the outer wall of the holding cup 1 in the suture area 12, so that the vagina 6 forms a closed space with the cervix 5 and the uterus 7 at the suture position. Then, as shown in FIG. Figure 6 As shown, the front end 211 of the driving knife extends out from the knife through hole 13 below the suturing position to cut the vagina 6. The cutting method can be that the cutting knife 21 rotates around the central axis of the receiving cup 1 to cut the vagina 6, or a circular cutting knife is used to perform a circular cutting on the vagina 6.

[0035] Finally, the holding cup 1 is pulled out as a whole, so that the vaginal stump 6, cervix 5, and uterus 7 fixed in the holding cup 1 are pulled out completely and airtightly, preventing tumor cells on the cervix from falling into the abdominal cavity and causing local dissemination and implantation.

[0036] Embodiment 2

[0037] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a cervical cancer removal device, comprising: a receiving cup 1, a cutting device 2, and a suturing device 3, wherein:

[0038] The receiving cup 1 has a receiving cavity 11 for receiving biological tissues, and the receiving cup 1 is provided with a suture needle area 12 made of soft material and a knife through hole 13 provided below the suture needle area 12;

[0039] The cutting device 2 comprises a cutting knife 21 disposed in the receiving cup 1, and a cutting driving device for driving a front end portion 211 of the cutting knife 21 to extend from or retract into the knife through hole 13;

[0040] The suturing device 3 comprises one or more suturing needles 31 arranged in the receiving cup 1 and located in the suturing needle area 12, a needle bin 32 for accommodating the suturing needles 31, and a suturing drive device for driving the suturing needles 31 to extend or retract from the receiving cup 1 in the suturing needle area 12, wherein the needle front end 311 of the suturing needle 31 close to the suturing needle area 12 is provided with a barb, and the needle bin 32 is fixed to the inner wall of the receiving cup 1 and located in the suturing needle area 12;

[0041] The needle bin 32 is provided with needle holes matching the suture needles 31, and the front end portion 311 of each suture needle 31 extends out from one of the needle holes, and the front end portion 311 of the suture needle 31 is closely attached to or partially inserted into the suture needle area 12;

[0042] The needle bin 32 is provided with a suturing drive spring 33 matching the suturing needle 31, and the suturing needle 31 is provided with a needle body protrusion 312, one end of the suturing drive spring 33 presses against the inner wall of the needle bin 32, and the other end presses against the needle body protrusion 312 of the suturing needle 31;

[0043] The suturing drive device includes a suturing needle ejecting buckle 34 and a pull cable 35 connected to the rear end of the suturing needle 31, and the suturing needle ejecting buckle 34 clamps or releases the needle body protrusion 312;

[0044] The receiving cup 1 comprises an upper cup body 101 and a lower cup body 102, the receiving cavity 11 and the sewing needle area 12 are arranged on the upper cup body 101, the cutting device 2 is arranged on the lower cup body 102, and the lower cup body 102 can rotate around the circumference of the upper cup body 101;

[0045] The cutting drive device includes a cutting knife lever 22, a lever shaft 23 and a cutting knife return spring 24. The lever shaft 23 passes through the cutting knife lever 22 and is fixed in the lower cup body 102. The cutting knife lever 22 rotates around the lever shaft 23. One end of the cutting knife lever 22 is in contact with the rear end 212 of the cutting knife 21 as a driving end 221, and the other end is extended out of the lower cup body 102 as a shifting end 222. The cutting knife return spring 24 is sleeved on the cutting knife 21, and one end of the cutting knife return spring 24 is connected to the inner wall of the lower cup body 102, and the other end is pressed against the rear end 212 of the knife. The cutting knife 21 is a cutting blade or an electric cutting knife.

[0046] A knife protection cover 14 is disposed on the outer wall of the receiving cup 1 , and the knife protection cover 14 covers the knife through hole 13 . The cutting drive device can drive the front end portion 211 of the cutting knife 21 to extend out of or retract from the knife protection cover 14 .

[0047] In this embodiment, the up and down directions are based on the opening of the receiving cup 1, the direction close to the opening of the receiving cup 1 is the upward direction, and the direction away from the opening of the receiving cup 1 is the downward direction. The component with a small distance from the opening of the receiving cup 1 is the upper component, and the component with a large distance from the opening of the receiving cup 1 is the lower component.

[0048] Specifically, the sewing needle area 12 is made of soft plastic material, and the remaining area of ​​the receiving cup 1 except the sewing needle area 12 is made of hard material;

[0049] The sewing needle area 12 includes an entire area from a preset first distance to a second distance from the upper edge of the containing cup 1, the first distance is 2-3 cm, preferably 2.5 cm, the second distance is 3-4 cm, preferably 3.5 cm, the cup mouth diameter of the containing cup 1 is 2.8-3.2 cm, 3.3-3.7 cm, or 3.8-4.2 cm, preferably, the cup mouth diameter of the containing cup 1 is 3 cm, 3.5 cm, or 4 cm.

[0050] Specifically, the upper cup body 101 of this embodiment is a composite material, and the suture area 12 is made of soft plastic material, preferably medical silicone. The rest of the upper cup body 101 and the lower cup body 102 are still made of hard materials, such as ceramic materials, to ensure the hardness of the holding cup 1. The cervical cancer removal device of this embodiment is preferably a disposable product, and has three cup mouth diameters, namely 3.0cm, 3.5cm, and 4.0c, to adapt to the different vaginal relaxation of patients.

[0051] Preferably, a push rod 4 is provided at the bottom of the accommodating cup 1, and the push rod 4 can be inserted into the lower cup body 102 and connected to the bottom of the upper cup body 101. The push rod 4 is a hollow pipe with a built-in cable conduit 38, and the cable conduit 38 is inserted into the upper cup body 101. The cable 35 is connected to the upper end of the cable conduit 38, and a cable conduit handle 381 is provided at the lower end of the cable conduit 38. A cable inlet is provided on the needle bin 32 corresponding to the needle rear end of each suture needle 31, and the cable 35 enters from the cable inlet and is connected to the needle rear end of the suture needle 31. A buckle push rod 36 is provided in the cable conduit 38, and the upper end of the buckle push rod 36 extends from the upper end of the cable conduit 38 and is connected to the buckle connecting rod 37, and the buckle connecting rod 37 is connected to the needle rear ends of multiple suture needles 31, and the lower end of the buckle push rod 36 extends from the lower end of the cable conduit 38. A rotating handle 25 is provided at the bottom of the lower cup body 102 , and the lower cup body 102 is connected to the upper cup body 101 via an annular guide rail, so that the lower cup body 102 can rotate around the circumference of the upper cup body 101 .

[0052] like Figure 3As shown, during the operation, the holding cup 1 is pushed by the push rod 4, and the holding cup 1 is lifted to the connection between the cervix 5 and the vagina 6, and the vagina 6 is sheathed on the outer wall of the holding cup 1, and the cervix 5 is contained in the holding cavity 11. For the convenience of explanation in the attached drawings, there is a certain gap between the vagina 6 and the outer wall of the holding cup 1. In fact, since the vagina 6 is elastic, the vagina 6 will be tightly sheathed on the outer wall of the holding cup 1. Then as shown in FIG. Figure 4 As shown, the operator pushes the buckle push rod 36 toward the opening direction of the receiving cup 1, and the buckle push rod 36 drives the buckle connecting rod 37 to move, releasing the needle body protrusion 312. Under the action of the suturing drive spring 33, the front end portion 311 of the suture needle 31 pops out from the needle hole of the needle bin 32, pierces the soft material of the suture needle area 12, and pierces the vaginal stump 6 of the outer wall of the receiving cup 1, and then Figure 5 As shown, the operator pulls the cable catheter 38 through the cable catheter handle 381, thereby pulling the cable 35 and retracting the suture needle 31. Since the needle front end 311 of the suture needle 31 is provided with a barb 313, when the suture needle 31 is retracted, the needle front end 311 is clamped on the outer wall of the suture needle area 12, thereby fixing the vagina 6 stump on the outer wall of the receiving cup 1, so that the vagina 6 forms a closed space with the cervix 5 and the uterus 7 at the suture position. The barb 313 can be made of elastic metal, and it will pop open after passing through the receiving cup 1, so that the vagina 6 and the outer wall of the receiving cup 1 can be clamped when the suture needle 31 is retracted. Then the operator holds the rotating handle 25 and rotates the lower cup body 102 around the circumference of the upper cup body 101. Since the knife protection cover 14 is provided on the lower cup body 102, the knife protection cover 14 will lift up the vagina 6 during the rotation process, which is convenient for the operator to observe whether the cutting process will cause damage to other tissues. After the surgeon has confirmed that the cutting process will not cause damage to other tissues, Figure 6 As shown, the operator pulls the toggle end 222 of the cutting knife lever 22 toward the direction of the rotating handle 25, and the cutting knife lever 22 rotates around the lever shaft 23, and the driving end 221 pushes the knife rear end 212 of the cutting knife 21, so that the knife front end 211 of the cutting knife 21 extends from the knife through hole 13, pierces the knife protection cover 14, and cuts the vagina 6. The distance between the lever shaft 23 and the toggle end 222 is smaller than the distance between the lever shaft 23 and the driving end 221, so that the toggle end 222 moves a smaller distance and the driving end 221 can move a larger distance. The operator holds the rotating handle 25 and the toggle end of the cutting knife lever 22 at the same time, rotates the lower cup body 102 around the circumference of the upper cup body 101 for one circle, and completes the cutting of the vagina 6. If the cutting knife 21 is a cutting electric knife, it is powered on after the knife front end 211 of the cutting knife 21 pierces the knife protection cover 14 to achieve cutting.

[0053] Finally, the holding cup 1 is pulled out as a whole, so that the vaginal stump 6, cervix 5, and uterus 7 fixed in the holding cup 1 are pulled out completely and airtightly, preventing tumor cells on the cervix from falling into the abdominal cavity and causing local dissemination and implantation.

[0054] Preferably, a slide groove for accommodating the suture needle 31 can be provided in the needle bin 32 to facilitate the entry and exit of the suture needle 31 .

[0055] Preferably, a knife bin 26 for accommodating the cutting knife 21 may be provided, and a cutting knife chute for placing the cutting knife 21 in and out may be provided in the knife bin 26 to facilitate the cutting knife 21 to move in and out.

[0056] This embodiment achieves circular incision of the vagina by providing a lower cup body that rotates around the circumference of the upper cup body and a cutting knife that can be extended and retracted. The knife protection cover is provided to facilitate the operator to observe the nearby tissues in advance before cutting the vagina, thereby avoiding surgical side effects. This embodiment can control the ejection and retraction of the suture needle to achieve vaginal suturing, so that the vagina, cervix, and uterus can form a closed space with the containing cup to prevent tumor cells from falling into the abdominal cavity.

[0057] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A cervical cancer removal device, characterized in that: include: A receiving cup (1), and a cutting device (2), wherein: The receiving cup (1) has a receiving cavity (11) for receiving biological tissue, and the receiving cup (1) is provided with a suture needle area (12) made of a soft material, and a knife through hole (13) arranged below the suture needle area (12); The cutting device (2) comprises a cutting knife (21) arranged in the containing cup (1), and a cutting drive device for driving the front end portion (211) of the cutting knife (21) to extend from or retract into the knife through hole (13); It also includes a suturing device (3), which includes one or more suturing needles (31) arranged in the receiving cup (1) and located in the suturing needle area (12), and a suturing drive device that drives the suturing needles (31) to extend or retract from the receiving cup (1) in the suturing needle area (12).

2. The cervical cancer removal device according to claim 1, characterized in that: The front end portion (311) of the suture needle (31) close to the suture needle area (12) is provided with a barb (313).

3. The cervical cancer removal device according to claim 1, characterized in that: The suturing device further comprises: a needle bin (32) for accommodating the suturing needle (31), wherein the needle bin (32) is fixed to the inner wall of the containing cup (1) and is located in the suturing needle area (12); The needle bin (32) is provided with a needle hole matching the suture needle (31), the front end portion (311) of each suture needle (31) protrudes from one of the needle holes, and the front end portion (311) of the suture needle (31) is closely attached to or partially inserted into the suture needle area (12); A suturing drive spring (33) matching the suturing needle (31) is arranged in the needle bin (32); a needle body protrusion (312) is arranged on the suturing needle (31); one end of the suturing drive spring (33) presses against the inner wall of the needle bin (32), and the other end presses against the needle body protrusion (312) of the suturing needle (31); The suturing drive device comprises a suturing needle ejecting buckle (34), and the suturing needle ejecting buckle (34) clamps or releases the needle body protrusion (312).

4. The cervical cancer removal device according to claim 3, characterized in that: The suturing drive device further comprises: a pull rope (35) connected to the rear end of the suturing needle (31).

5. The cervical cancer removal device according to claim 1, characterized in that: The accommodating cup (1) comprises an upper cup body (101) and a lower cup body (102); the accommodating cavity (11) and the sewing needle area (12) are arranged on the upper cup body (101); the cutting device (2) is arranged on the lower cup body (102); and the lower cup body (102) can rotate around the circumference of the upper cup body (101).

6. The cervical cancer removal device according to claim 5, characterized in that: The cutting drive device comprises a cutting knife lever (22), a lever rotating shaft (23) and a cutting knife reset spring (24); the lever rotating shaft (23) passes through the cutting knife lever (22) and is fixed in the lower cup body (102); the cutting knife lever (22) rotates around the lever rotating shaft (23); one end of the cutting knife lever (22) as a driving end (221) contacts with a knife rear end (212) of the cutting knife (21); the other end as a driving end (222) extends out of the lower cup body (102); the cutting knife reset spring (24) is sleeved on the cutting knife (21); one end of the cutting knife reset spring (24) is connected to the inner wall of the lower cup body (102); the other end presses against the knife rear end (212).

7. The cervical cancer removal device according to claim 1, characterized in that: A knife protection cover (14) is provided on the outer wall of the containing cup (1), and the knife protection cover (14) covers the knife through hole (13).

8. The cervical cancer removal device according to claim 7, characterized in that: The cutting drive device can drive the front end portion (211) of the cutting knife (21) to extend from or retract into the knife protection cover (14).

9. The cervical cancer removal device according to claim 1, characterized in that: The cutting knife (21) is a cutting blade or an electric cutting knife.

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