A laparoscopic cyst puncture anti-overflow positioning device

Abstract

The present invention discloses a laparoscopic cyst puncture anti-overflow positioning device, which relates to the field of medical tools. The device comprises a positioner and a handle. The positioner comprises a positioning ring located in the center and a pair of blades symmetrically arranged on both sides of the positioning ring. A puncture elastic pad is arranged in the central through hole of the positioning ring. The rear end face of the positioning ring is detachably connected to the front end face of the handle through a connecting part. The blade is a curved surface that bends from the large end to the small end. The front end face of the blade is coated with an adhesive layer for sticking to the outer surface of the cyst. The handle comprises a handle body, and a control part for controlling the gathering or unfolding of two blades is arranged in the handle body. The switch of the control part is arranged on the rear end of the handle body. The present invention solves the technical problems of inconvenient operation and easy leakage of cystic fluid in cyst puncture and extraction of cystic fluid in the prior art, and has the technical effects of simple operation, stability and reliability, and effective prevention of cystic fluid overflow during cyst removal.

Description

Technical Field

[0001] The present application relates to the field of medical tools, and in particular to a laparoscopic cyst puncture anti-overflow positioning device. Background Art

[0002] In the past 30 years, the advancement of laparoscopic surgery has made it possible to remove most benign abdominal cysts. Compared with traditional laparotomy, laparoscopic surgery has the advantages of less trauma, shorter hospital stay and shorter recovery time, and is favored by patients because of its better aesthetic effect.

[0003] However, in terms of the oncological safety of laparoscopic minimally invasive surgery, whether tumor resection meets the "tumor-free principle" has been controversial, mainly because iatrogenic cyst rupture and spillage of malignant mass contents during laparoscopic minimally invasive surgery can upgrade the disease stage, lead to the need for adjuvant chemotherapy and may impair the patient's overall survival.

[0004] Some researchers believe that rupture of serous cystadenoma and dermoid cyst does not affect the postoperative morbidity rate, because repeated pelvic flushing during surgery generally does not affect the residual contents of dermoid cysts, and ovarian mucinous cysts and peritoneal mucinous tumors are two tumors with different biological behaviors. Therefore, even if there is a small amount of overflow during surgery, repeated flushing will not affect the prognosis. However, in fact, patients with tumor rupture and overflow during surgery have more stringent follow-up requirements, and both patients and surgeons will face greater psychological pressure. For individual patients with unidentified early malignant tumors, the adverse outcomes caused by failed surgery are irreversible.

[0005] The risk of iatrogenic cyst rupture and spillage of malignant mass contents in laparoscopic cystectomy is related to factors such as cyst size, nature, surgical method, operator's operating ability, and laparoscopic equipment development. The existence of a certain boundary between cysts and normal tissues is the basic principle of cystectomy. By continuously improving technical operating capabilities, retaining normal tissues and functions under certain conditions is also the pursuit of continuous medical development.

[0006] Some scholars pointed out that if it is a mucous cyst, it is not suitable to perform puncture and fluid extraction. A closed laparoscopic surgery should be performed. First, the tumor should be removed and placed in a plastic bag. The bag mouth should be clamped under the incision. The bag mouth should be opened to suck out the cystic fluid and remove the cyst wall. Laparoscopic surgery is not suitable for those that are too large to fit into the bag mouth. For serous, unilocular, and dermoid cysts, puncture and fluid extraction can be performed first to shrink the cyst. Specifically, a small purse is sewed on the cyst wall at the exposed part of the incision with No. 4 silk thread, and a tumor puncture needle is inserted into the purse. The suture is tightened while the cyst contents are sucked out to shrink the cyst. The cystic fluid rarely overflows, so that the tumor can be exposed and removed. However, this method of extracting cystic fluid has the disadvantages of inconvenient operation and easy leakage of cystic fluid.

[0007] Therefore, the prior art method of laparoscopic cyst puncture and extraction of cystic fluid has at least the following technical problems: inconvenient operation and easy leakage of cystic fluid. Summary of the invention

[0008] The embodiment of the present application provides a laparoscopic cyst puncture anti-overflow positioning device to solve the technical problems of inconvenient operation and easy leakage of cystic fluid in laparoscopic cyst puncture and extraction of cystic fluid in the prior art. The embodiment of the present application sets a positioner to assist the positioning of the puncture needle. Hold the handle to place the positioner on the part of the cyst that needs to be punctured and incised, and align the positioning ring on the positioner with the puncture part; by controlling the control force of the control rope on the blade, the blade is tightly fitted with the outer surface of the cyst, and the adhesive layer on the blade can be firmly attached to the outer surface of the cyst, so that the positioner is stably positioned; the puncture needle is passed through the puncture elastic pad in the middle of the positioning ring to suck out the cystic fluid, and the close adhesion between the blade and the cyst surface has the effect of preventing the cystic fluid from overflowing, and the pinhole on the puncture elastic pad can automatically recover, which has the effect of preventing the cystic fluid from overflowing, so that the cystic fluid will not overflow during the entire puncture process and after the puncture. It has the technical effects of simple operation, stable and reliable, and can effectively prevent the overflow of cystic fluid during the removal of cysts.

[0009] In order to solve the above problems, an embodiment of the present application provides a laparoscopic cyst puncture overflow prevention positioning device, the device comprising a positioner for positioning the puncture needle to aspirate the cyst contents, the rear end of the positioner is connected to a handle, and the positioner and the handle are detachably connected;

[0010] The positioner comprises a positioning ring located in the center and a pair of blades symmetrically arranged on both sides of the positioning ring, and the blades extend in a radial direction away from the positioning ring;

[0011] A puncture elastic pad is provided in the central through hole of the positioning ring to facilitate the insertion of the puncture needle, and the puncture elastic pad seals the central through hole; the rear end surface of the positioning ring is detachably connected to the front end surface of the handle through a connecting portion;

[0012] The blade comprises a large head end and a small head end, and the outer edge of the blade between the large head end and the small head end is a smooth curve; the large head end is rotatably connected to the outer wall surface of the positioning ring to allow the two blades to gather or unfold; the small head end is bent and extended toward the front end surface of the positioning ring, and the blade is a curved surface bent from the large head end to the small head end; the front end surface of the blade is coated with an adhesive layer for sticking to the outer surface of the cyst;

[0013] The handle comprises a handle body, in which a control unit for controlling the two blades to gather or spread out is arranged, and the control unit comprises a switch, which is arranged on the rear end of the handle body.

[0014] Furthermore, the connecting portion includes a plurality of matched pairs of clamping grooves and clamping columns, a ring groove for the front end of the handle body to be inserted is provided on the rear end surface of the positioning ring, and the ring groove, the positioning ring and the handle body are coaxially arranged; the clamping groove is provided on the groove wall of the ring groove, and the clamping column is arranged on the outer peripheral surface of the front end of the handle body;

[0015] The slot includes an axial slot and a circumferential slot. The axial slot is arranged on the inner wall of the ring groove along the axial direction of the ring groove, and the circumferential slot is arranged on the inner wall of the ring groove along the circumference of the ring groove. The top opening of the axial slot is arranged on the rear end face of the positioning ring, and the bottom opening of the axial slot is connected to the opening of the circumferential slot.

[0016] Furthermore, the switch comprises a slider and a slide groove, wherein the slide groove is arranged on the handle body along the axial direction of the handle body, and the slider can be slidably arranged in the slide groove along the axial direction of the slide groove;

[0017] The control part also includes a control rope, the front end of which is detachably connected to the rear surface of the blades, and the rear end of which penetrates into the handle body and is fixedly connected to the front end of the slider.

[0018] Furthermore, a connecting ring is provided on the rear end surface of the blade, and a hook that can hook the connecting ring is connected to the front end of the control rope, and the control rope and the blade are detachably connected via the hook and the connecting ring.

[0019] Furthermore, slideways are provided on both sides of the slide groove, and slide plates are provided on both sides of the slide block, and the slide plates can be slidably inserted in the slideways.

[0020] Furthermore, the front end of the handle body is provided with a groove for the control rope to be inserted into.

[0021] Furthermore, the large end is connected to the outer wall surface of the positioning ring through an elastic thin strip.

[0022] Furthermore, the clamping grooves are arranged at equal angular intervals on the positioning ring, and the clamping columns are arranged at equal angular intervals on the handle body.

[0023] Furthermore, the connecting portion includes three pairs of matching slots and posts.

[0024] Furthermore, a removable protective film is adhered to the outer surface of the adhesive layer.

[0025] The above one or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:

[0026] 1. The device described in the embodiment of the present application is provided with a positioner for assisting the positioning of the puncture needle. The positioner is placed on the part of the cyst that needs to be punctured and incised by holding the handle, and the positioning ring on the positioner is aligned with the puncture part; the control force of the control rope on the blade is controlled so that the blade is closely fitted with the outer surface of the cyst, and the adhesive layer on the blade can be firmly adhered to the outer surface of the cyst, so that the positioner is stably positioned; the puncture needle is passed through the puncture elastic pad in the middle of the positioning ring to suck out the contents of the cyst (cystic fluid), and the blade is closely adhered to the surface of the cyst. The invention has the function of preventing the cyst fluid from overflowing, and the pinhole on the puncture elastic pad can automatically recover, so the cyst fluid will not overflow during the entire puncture process and after the puncture is completed. Finally, the cyst is cut open along the outer edge of the blade and the cyst is peeled off, which solves the technical problems of inconvenient operation and easy leakage of cyst fluid in minimally invasive surgeries such as laparoscopy, single-port laparoscope, and laparoscopic da Vinci robot surgery in the prior art. The invention has the technical effects of simple operation, stability and reliability, and can effectively prevent the overflow of cyst fluid during cyst removal.

[0027] 2. The outer edge of the blade described in the embodiment of the present application is smooth and serves as a guide for the incision.

[0028] 3. In the embodiment of the present application, the handle is aligned with the positioning ring, the clamping column is pushed into the axial slot, and then the handle is rotated in the positive direction to screw the clamping column into the circumferential slot to prevent slipping, so that the handle and the locator are fixed to each other. When the handle and the locator need to be separated, the clamping column can be pulled out of the slot by rotating the handle in the opposite direction, so that the handle and the locator are separated from each other, which is convenient and easy to use.

[0029] 4. In the embodiment of the present application, when the device is placed into the abdominal cavity, the control rope is relaxed and the blades are gathered at the front end of the positioning ring. After placement, the control rope is tightened and the two blades are unfolded. By adjusting the unfolding angle of the blades, the blades can fit the outer surface of cysts of different sizes, thereby making the positioning more stable and preventing overflow better.

[0030] 5. The protective film described in the embodiment of the present application can prevent the adhesive layer from sticking to other objects. The protective film can be torn off before use, which is convenient and easy to use.

[0031] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of a laparoscopic cyst puncture overflow prevention positioning device according to an embodiment of the present invention;

[0033] Figure 2 It is a structural schematic diagram of a positioner of a laparoscopic cyst puncture overflow prevention positioning device in an embodiment of the present invention;

[0034] Figure 3 It is a front view of a locator of a laparoscopic cyst puncture anti-overflow locating device in an embodiment of the present invention;

[0035] Figure 4 It is a top view of a locator of a laparoscopic cyst puncture overflow prevention locating device in an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the cooperation between the positioner and the handle in an embodiment of the present invention;

[0037] Figure 6 It is a structural schematic diagram of a positioning ring of a laparoscopic cyst puncture overflow prevention positioning device in an embodiment of the present invention;

[0038] Figure 7 It is a front view of a handle of a laparoscopic cyst puncture anti-overflow positioning device in an embodiment of the present invention;

[0039] Figure 8 The present invention is a schematic diagram of the structure of a switch of a laparoscopic cyst puncture anti-overflow positioning device in an embodiment of the present invention.

[0040] Explanation of the reference numerals: positioner 10, positioning ring 11, annular groove 111, clamping groove 112, axial slot 1121, circumferential slot 1122, blade 12, connecting ring 121, small head end 122, puncture elastic pad 13, control rope 14, elastic strip 15, handle 20, handle body 21, groove 211, clamping column 212, slide groove 22, slide way 221, slider 23. DETAILED DESCRIPTION

[0041] The embodiment of the present application provides a laparoscopic cyst puncture overflow prevention positioning device to solve the technical problem that the semen sample storage device in the prior art occupies a large amount of space.

[0042] In order to solve the above technical problems, the overall idea of ​​the technical solution provided by the present application is as follows: a locator for assisting the positioning of the puncture needle is set, and the locator is placed on the part of the cyst that needs to be punctured and incised by holding the handle, and the positioning ring on the locator is aligned with the puncture part; by controlling the control force of the control rope on the blade, the blade is closely fitted with the outer surface of the cyst, and the adhesive layer on the blade can be firmly adhered to the outer surface of the cyst, so that the locator is stably positioned; the puncture needle is passed through the puncture elastic pad in the middle of the positioning ring to suck out the cystic fluid, and the close adhesion between the blade and the surface of the cyst has the effect of preventing the cystic fluid from overflowing, and the pinhole on the puncture elastic pad can automatically recover, which has the effect of preventing the cystic fluid from overflowing, so that the cystic fluid will not overflow during the entire puncture process and after the puncture is completed, which solves the technical problems of inconvenient operation and easy leakage of cystic fluid in cyst puncture and extraction of cystic fluid in minimally invasive surgeries such as laparoscopy, single-port laparoscope, and laparoscopic da Vinci robot surgery in the prior art, and has the technical effects of simple operation, stability and reliability, and effective prevention of cystic fluid overflow during cyst removal.

[0043] The technical solution of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations on the technical solution of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0044] Figure 1 FIG. 1 is a schematic diagram of the structure of a laparoscopic cyst puncture overflow prevention positioning device according to an embodiment of the present invention. Figure 1 As shown, the device comprises a locator 10 for locating a puncture needle to aspirate the contents of a cyst, a handle 20 is connected to the rear end of the locator 10, and the locator 10 and the handle 20 are detachably connected.

[0045] It should be noted that in this embodiment, the end facing the patient when in use is the front end (i.e. Figure 1 The end facing the user is the rear end (i.e. Figure 1 The use of the front and rear directions is only for the convenience of description and is not a limitation to the technical solution of the present invention.

[0046] Specifically, the handle 20 is held to place the locator 10 into the abdominal cavity, and the locator 10 is positioned at the part of the cyst that needs to be punctured and incised, and then the handle 20 is detached from the locator 10, and a puncture needle (such as a syringe) is passed through the locator to aspirate the contents of the cyst, and finally the cyst is incised along the outer edge of the locator 10 and peeled off. The locator 10 and the handle 20 are detachably connected, so that the device described in this embodiment can be used for repeated positioning and puncturing of two or more cysts.

[0047] like Figures 2 to 4 As shown, the positioner 10 comprises a positioning ring 11 located in the center and a pair of blades 12 symmetrically arranged on both sides of the positioning ring 11, and the blades 12 extend in a radial direction of the positioning ring 11 away from the positioning ring 11;

[0048] A puncture elastic pad 13 is provided in the central through hole of the positioning ring 11 for facilitating the insertion of a puncture needle, and the puncture elastic pad 13 seals the central through hole; the rear end face of the positioning ring 11 is detachably connected to the front end face of the handle 20 via a connecting portion.

[0049] Specifically, the positioning ring 11 is made of a soft material, such as vinyl. The positioning ring 11 is used to locate the puncture position, and the puncture elastic pad 13 can be used for the puncture needle to puncture to suck out the cystic fluid. The puncture elastic pad 13 is made of rubber material, which can allow the needle body to pass through, and when the needle body is pulled out, the puncture elastic pad 13 can automatically recover and block the needle hole to prevent the cystic fluid remaining in the cyst from leaking out after the needle body is pulled out.

[0050] The blade 12 includes a large head end and a small head end 122, and the outer edge of the blade 12 between the large head end and the small head end 122 is a smooth curve; the large head end is rotatably connected to the outer wall surface of the positioning ring 11 to allow the two blades 12 to gather or unfold; the small head end 122 is bent and extended toward the front end surface of the positioning ring 11, and the blade 12 presents a curved surface bending from the large head end to the small head end 122; the front end surface of the blade 12 is coated with an adhesive layer for sticking to the outer surface of the cyst.

[0051] Specifically, the blades 12 are made of soft material, such as vinyl. The blades 12 are folded when placed in the abdominal cavity, that is, the two blades 12 are folded at the front end of the positioning ring 11 like flower buds to reduce the radial width of the device; after being placed in the abdominal cavity, the two blades 12 are unfolded. The viscose layer on the blades 12 is a biological viscose coated on the blades 12. The thrust of the handle 10 pushing forward causes the blades 12 to firmly adhere to the outer surface of the cyst through the viscose layer, thereby playing a positioning role. The outer edge of the blade is smooth and has the function of guiding the incision.

[0052] The handle 20 includes a handle body 21 . A control unit for controlling the two blades 12 to gather or spread out is disposed in the handle body 21 . The control unit includes a switch. The switch is disposed on the rear end of the handle body 21 .

[0053] Specifically, the switch is arranged on the rear end of the handle body 21 for easy operation. In a natural state without being controlled by the control unit, the blades are in a horizontally extended state.

[0054] The device described in this embodiment is provided with a positioner for assisting the positioning of the puncture needle. By holding the handle 20, the positioner 10 is placed on the part of the cyst that needs to be punctured and incised, and the positioning ring 11 on the positioner 10 is aligned with the puncture part; by controlling the control force of the control rope 14 on the blade 12, the blade 12 is closely fitted to the outer surface of the cyst, and the adhesive layer on the blade 14 can be firmly adhered to the outer surface of the cyst, so that the positioner 10 is stably positioned; the puncture needle is passed through the puncture elastic pad 13 in the middle of the positioning ring 11 to suck out the contents of the cyst (cystic fluid), and the blade 14 and The tight adhesion on the surface of the cyst has the effect of preventing the cyst fluid from overflowing, and the pinhole on the puncture elastic pad 13 can automatically recover, which has the effect of preventing the cyst fluid from overflowing, so that the cyst fluid will not overflow during the entire puncture process and after the puncture is completed. Finally, the cyst is cut open along the outer edge of the blade 12 and the cyst is peeled off, which solves the technical problems of inconvenient operation and easy leakage of cyst fluid in minimally invasive surgeries such as laparoscopy, single-port laparoscope, and laparoscopic da Vinci robot surgery in the prior art. It has the technical effects of simple operation, stability and reliability, and can effectively prevent the overflow of cyst fluid during cyst removal.

[0055] Further, such as Figure 5 As shown, the connecting portion includes a plurality of matched pairs of slots 112 and posts 212. A ring slot 111 is provided on the rear end surface of the positioning ring 11 for the front end of the handle body 21 to be inserted, and the ring slot 11, the positioning ring 11, and the handle body 21 are coaxially arranged; the slot 112 is provided on the groove wall of the ring slot 111, as shown in FIG. Figure 7As shown, the clamping column 212 is arranged on the outer peripheral surface of the front end of the handle body 21;

[0056] like Figure 6 As shown, the slot 112 includes an axial slot 1121 and a circumferential slot 1122, the axial slot 1121 is arranged on the inner wall of the annular groove 111 along the axial direction of the annular groove 111, the circumferential slot 1122 is arranged on the inner wall of the annular groove 111 along the circumference of the annular groove 111, and the top opening of the axial slot 1121 is arranged on the rear end face of the positioning ring 11, and the bottom opening of the axial slot 1121 is communicated with the opening of the circumferential slot 1122.

[0057] Specifically, align the handle body 21 with the positioning ring 11, push the clamping column 212 into the axial slot 1121, and then rotate the handle body 21 in the positive direction to screw the clamping column 212 into the circumferential slot 1122 to prevent slipping, so that the handle 20 and the positioner 10 are fixed to each other. When it is necessary to separate the handle 20 and the positioner, rotate the handle body 21 in the reverse direction to pull the clamping column 212 out of the clamping slot 112, so that the handle 20 and the positioner 10 are separated from each other, which is convenient, easy to use and easy to operate.

[0058] Further, such as Figure 8 As shown, the switch comprises a slider 23 and a slide groove 22, wherein the slide groove 22 is arranged on the handle body 21 along the axial direction of the handle body 21, and the slider 23 can be slidably arranged in the slide groove 22 along the axial direction of the slide groove 22;

[0059] The control unit also includes a control rope 14 , the front ends of which are detachably connected to the rear surfaces of the blades 12 , and the rear ends of which are inserted into the handle body 21 and fixedly connected to the front ends of the sliders 23 .

[0060] Specifically, the handle body 21 is a hollow cylinder. The slider 23 slides forward and backward along the slide groove 22, which can drive the two blades 12 to fold or unfold. When inserted into the abdominal cavity, the control rope 14 is loosened, and the blades 12 are folded at the front end of the positioning ring. After insertion, the control rope 14 is tightened, and the two blades 12 are unfolded. By adjusting the unfolding angle of the blades 12, the blades 12 can fit the outer surface of cysts of different sizes, so that the positioning is more stable and the anti-overflow effect is better.

[0061] Furthermore, a connecting ring 121 is provided on the rear end surface of the blade 12, and a hook that can hook the connecting ring 121 is connected to the front end of the control rope 14, and the control rope 14 and the blade 12 are detachably connected through the hook and the connecting ring 121.

[0062] Specifically, the traction rope 14 and the blade 12 are detachably connected via the hook and the connecting ring 121 .

[0063] Furthermore, slideways 221 are provided on both sides of the slide groove 22 , and slide plates are provided on both sides of the slider 23 . The slide plates can be slidably inserted into the slideways 221 .

[0064] Furthermore, the front end of the handle body 21 is provided with a groove 211 for the control rope 14 to be inserted into.

[0065] Specifically, after the handle body 21 and the positioning ring 21 are connected to each other, the groove 211 allows the control rope 14 to pass through and slide.

[0066] Furthermore, the large end is connected to the outer wall surface of the positioning ring 11 through an elastic thin strip 15 , and the elastic thin strip 15 is narrower than the blade 12 .

[0067] Specifically, the elastic strip 15 has a certain deformation amount to allow the blade 12 to rotate.

[0068] Furthermore, the clamping grooves 112 are arranged at equal angular intervals on the positioning ring 11 , and the clamping columns 212 are arranged at equal angular intervals on the handle body 21 .

[0069] Furthermore, the connecting portion includes three pairs of matching slots 112 and posts 212 .

[0070] Furthermore, a removable protective film is adhered to the outer surface of the adhesive layer.

[0071] Specifically, the protective film is smooth, and when not in use, the protective film can prevent the adhesive layer from sticking to other objects. The protective film can be torn off before use, which is convenient and easy to use.

[0072] The steps of using the laparoscopic cyst puncture anti-overflow positioning device described in this embodiment are as follows:

[0073] 1) After abdominal exploration, determine the puncture and incision sites, and remove surface impurities, blood accumulation, adhesions, etc. at the puncture and incision sites;

[0074] 2) Slide the slider 23 to make the control rope 14 loosen the blades 12, and the two blades 12 are retracted;

[0075] 3) tearing off the protective film on the outer surface of the adhesive layer, and inserting the device of this embodiment into the abdominal cavity through laparoscope;

[0076] 4) Push the slider 23 backwards, and under the action of the control rope 14, the two blades 12 are unfolded more than 180°;

[0077] 6) Align the positioning ring 11 with the predetermined puncture point and make it close to the surface of the cyst, push the slider 23 forward, and the front end surface of the blade 12 is closely attached to the surface of the cyst;

[0078] 7) Rotating the handle body 21 to separate the handle body 21 from the positioning ring 11;

[0079] 8) Aim the puncture needle at the puncture elastic pad 13 in the middle of the positioning ring 11, and aspirate the cystic fluid through the puncture needle;

[0080] 9) After the cystic fluid in the cyst is reduced and the tension of the cyst is reduced, the cyst is completely removed by cutting along the outer edges of the two blades 12;

[0081] 10) For multi-chambered cysts and cysts in multiple locations, the locator can be rotated to multiple puncture fixation devices for puncture decompression.

[0082] The laparoscopic cyst puncture anti-overflow positioning device described in the embodiments of the present application has at least one or more of the following technical effects:

[0083] 1. The device described in this embodiment is provided with a positioner for assisting the positioning of the puncture needle. By holding the handle 20, the positioner 10 is placed on the part of the cyst that needs to be punctured and incised, and the positioning ring 11 on the positioner 10 is aligned with the puncture part; by controlling the control force of the control rope 14 on the blade 12, the blade 12 is closely fitted with the outer surface of the cyst, and the adhesive layer on the blade 14 can be firmly adhered to the outer surface of the cyst, so that the positioner 10 is stably positioned; the puncture needle is passed through the puncture elastic pad 13 in the middle of the positioning ring 11 to suck out the contents of the cyst (cystic fluid), and the blade 14 The close adhesion to the surface of the cyst has the effect of preventing the cyst fluid from overflowing, and the pinhole on the puncture elastic pad 13 can automatically recover, which has the effect of preventing the cyst fluid from overflowing, so that the cyst fluid will not overflow during the entire puncture process and after the puncture is completed. Finally, the cyst is cut open along the outer edge of the blade 12 and the cyst is peeled off, which solves the technical problems of inconvenient operation and easy leakage of cyst fluid in minimally invasive surgeries such as laparoscopy, single-port laparoscope, and laparoscopic da Vinci robot surgery in the prior art. The operation is simple, stable and reliable, and the technical effect of effectively preventing the overflow of cyst fluid during cyst removal is achieved.

[0084] 2. The outer edge of the blade is smooth and has the function of guiding the incision.

[0085] 3. Align the handle 21 with the positioning ring 11, push the clamping column 212 into the axial slot 1121, and then rotate the handle 21 in the positive direction to screw the clamping column 212 into the circumferential slot 1122 to prevent slipping, so that the handle 20 and the positioner 10 are fixed to each other. When the handle 20 and the positioner need to be separated, the clamping column 212 can be pulled out of the clamping slot 112 by rotating the handle 21 in the reverse direction, so that the handle 20 and the positioner 10 are separated from each other, which is convenient, easy to use and easy to operate.

[0086] 4. When inserted into the abdominal cavity, the control rope 14 is relaxed and the blades 12 are gathered at the front end of the positioning ring. After insertion, the control rope 14 is tightened and the two blades 12 are unfolded. By adjusting the unfolding angle of the blades 12, the blades 12 can fit the outer surface of cysts of different sizes, thereby making the positioning more stable and preventing overflow better.

[0087] 5. The protective film can prevent the adhesive layer from sticking to other objects. The protective film can be torn off before use, which is convenient and easy to use.

[0088] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A laparoscopic cyst puncture anti-overflow positioning device, characterized in that: The device comprises a locator for locating the puncture needle to aspirate the contents of the cyst, the rear end of the locator is connected to a handle, and the locator and the handle are detachably connected; The positioner comprises a positioning ring located in the center and a pair of blades symmetrically arranged on both sides of the positioning ring, and the blades extend in a radial direction away from the positioning ring; A puncture elastic pad is provided in the central through hole of the positioning ring to facilitate the insertion of the puncture needle, and the puncture elastic pad seals the central through hole; the rear end surface of the positioning ring is detachably connected to the front end surface of the handle through a connecting portion; The blade comprises a large head end and a small head end, and the outer edge of the blade between the large head end and the small head end is a smooth curve; the large head end is rotatably connected to the outer wall surface of the positioning ring to allow the two blades to gather or unfold; the small head end is bent and extended toward the front end surface of the positioning ring, and the blade is a curved surface bent from the large head end to the small head end; the front end surface of the blade is coated with an adhesive layer for sticking to the outer surface of the cyst; The handle comprises a handle body, in which a control unit for controlling the two blades to gather or spread out is arranged, and the control unit comprises a switch, which is arranged on the rear end of the handle body.

2. A laparoscopic cyst puncture anti-overflow positioning device as claimed in claim 1, characterized in that: The connecting portion includes a plurality of matched pairs of clamping grooves and clamping columns, a ring groove for inserting the front end of the handle body is provided on the rear end surface of the positioning ring, and the ring groove, the positioning ring and the handle body are coaxially arranged; the clamping groove is provided on the groove wall of the ring groove, and the clamping column is arranged on the outer peripheral surface of the front end of the handle body; The slot includes an axial slot and a circumferential slot. The axial slot is arranged on the inner wall of the ring groove along the axial direction of the ring groove, and the circumferential slot is arranged on the inner wall of the ring groove along the circumference of the ring groove. The top opening of the axial slot is arranged on the rear end face of the positioning ring, and the bottom opening of the axial slot is connected to the opening of the circumferential slot.

3. A laparoscopic cyst puncture anti-overflow positioning device as claimed in claim 1, characterized in that: The switch comprises a slider and a slide groove, wherein the slide groove is arranged on the handle body along the axial direction of the handle body, and the slider can be slidably arranged in the slide groove along the axial direction of the slide groove; The control part also includes a control rope, the front end of which is detachably connected to the rear surface of the blades, and the rear end of which penetrates into the handle body and is fixedly connected to the front end of the slider.

4. A laparoscopic cyst puncture anti-overflow positioning device as claimed in claim 3, characterized in that: A connecting ring is arranged on the rear end surface of the blade, a hook which can hook the connecting ring is connected to the front end of the control rope, and the control rope and the blade are detachably connected via the hook and the connecting ring.

5. A laparoscopic cyst puncture anti-overflow positioning device as claimed in claim 3, characterized in that: Slideways are arranged on both sides of the slide groove, and slide plates are arranged on both sides of the slide block. The slide plates can be slidably inserted in the slideways.

6. A laparoscopic cyst puncture anti-overflow positioning device as claimed in claim 3, characterized in that: The front end of the handle body is provided with a groove for the control rope to be inserted into.

7. The laparoscopic cyst puncture anti-overflow positioning device according to claim 1, characterized in that: The large head end is connected to the outer wall surface of the positioning ring through an elastic thin strip.

8. The laparoscopic cyst puncture anti-overflow positioning device according to claim 2, characterized in that: The clamping grooves are arranged on the positioning ring at equal angular intervals, and the clamping columns are arranged on the handle body at equal angular intervals.

9. A laparoscopic cyst puncture anti-overflow positioning device as claimed in claim 8, characterized in that: The connecting part comprises three pairs of matching clamping grooves and clamping columns.

10. The laparoscopic cyst puncture anti-overflow positioning device according to claim 1, characterized in that: A tearable protective film is pasted on the outer surface of the adhesive layer.

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