Endoscope under sealable specimen bag

Abstract

The utility model relates to a kind of endoscopic closed specimen taking bag, including taking rod body, joint, support wire, top ring and taking bag;Taking rod body includes inner rod and sleeve rod set on inner rod;The tightening ring of taking bag is set on support wire, and the both ends of support wire pass through top ring and are fixedly connected with one end of joint, and the other end of joint is threadedly connected with inner rod located in sleeve rod;Protrusion is provided on joint along length direction, and the inner wall of sleeve rod is provided with sliding slot by adapting protrusion;Using the structure can realize that the pathological tissue needing to be removed is loaded into taking bag, in the case where guaranteeing that taking bag is well sealed, taking bag and taking rod body are separated, so that taking bag loaded with pathological cancerous tissue is taken out from puncture or natural cavity, such as vagina, effectively avoid the risk of pathological tissue, especially cancerous tissue, implantation metastasis.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a sealable specimen retrieval bag for endoscopy. Background Technology

[0002] Laparoscopy is used in various surgeries, with its main advantage being minimal skin surface trauma, with the largest surgical incision being only 1-2 cm. A challenge arises: how to remove the diseased tissue without contaminating normal tissue. Currently, the lesion is placed in a sterile retrieval bag and removed in stages through a puncture site or natural cavity (such as the vagina), which solves most clinical problems. However, some issues remain: 1. In cases of cervical or uterine malignant tumors, after hysterectomy, if the uterus is large and cannot be removed vaginally in one go, requiring rotary cutting, there is currently no suitable retrieval bag that can easily enclose and seal the uterus, separating it from the retrieval rod for staged rotary cutting through the vagina, thus preventing tumor dissemination and metastasis during the cutting process; 2. In surgeries involving the removal of multiple uterine fibroids, dozens or even hundreds of fibroids may be removed and placed in the pelvic and abdominal cavities, ultimately requiring staged rotary cutting using a rotary cutter. If there are many small fibroids in the pelvic and abdominal cavities, and they are hidden in the interintestinal spaces or in areas that are difficult to find, in severe cases, fibroid nodules may remain in the pelvic and abdominal cavities. In such cases, a sealable retrieval bag can be used to temporarily store some of the smaller fibroids to avoid this problem. 3. During laparoscopic surgery, some tissues may be temporarily stored in the body, such as lymph nodes. These can be placed separately in a sealable retrieval bag and then removed together at the end. In gynecological surgery, they can be removed together through the vaginal incision at the end to avoid repeated entry and exit through the abdominal wall puncture site. Utility Model Content

[0003] The purpose of this invention is to provide a sealable specimen retrieval bag for endoscopic use, thereby solving the aforementioned problems in the prior art.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An endoscopically closable specimen retrieval bag includes a retrieval rod body, a connector, a support wire, a top ring, and a retrieval bag. The retrieval rod body includes an inner rod and a sleeve rod fitted onto the inner rod. The tightening ring of the retrieval bag is fitted onto the support wire. Both ends of the support wire pass through the top ring and are fixedly connected to one end of the connector. The other end of the connector is threadedly connected to the inner rod located inside the sleeve rod. The connector has a protrusion along its length, and the inner wall of the sleeve rod has a groove adapted to the protrusion.

[0005] The beneficial effects of this invention are as follows: During use, the sealable specimen retrieval bag is inserted through an abdominal incision. After the lesion tissue to be removed is placed into the retrieval bag, the sleeve is pushed forward relative to the inner rod. The sleeve pushes the top ring, which in turn pushes the tightening ring of the retrieval bag to seal it. During this process, due to the resilience of the support wire, the supporting force of the support wire on the inner wall of the top ring gradually increases, increasing the friction between the top ring and the support wire, thus fixing the top ring on the support wire and achieving a stable seal for the retrieval bag. Then, the inner rod is rotated relative to the sleeve rod, and the protrusion on the connector and the sliding groove limit the movement, causing the connector and the inner rod to rotate relative to each other, separating the connector from the inner rod. Finally, the inner rod is pushed forward relative to the sleeve rod to disengage the connector from the sleeve rod, i.e., the connector separates from the retrieval rod body. This allows the retrieval bag containing the lesion tissue to be removed from the puncture site or natural cavity such as the vagina, while ensuring a good seal, effectively avoiding the risk of lesion tissue implantation and metastasis at the puncture site.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the inner rod is provided with a stud on one end face of the connector, and the corresponding end face of the connector is provided with a threaded hole for the matching stud.

[0008] Furthermore, the length of the top ring is 5mm.

[0009] Furthermore, the inner wall of the top ring is provided with a clip frame adapted to the support wire.

[0010] Furthermore, the inner wall of the top ring is provided with vertical plates.

[0011] An endoscopically closable specimen retrieval bag includes a retrieval rod body, a support wire, a top ring, and a retrieval bag. The retrieval rod body includes an inner rod and a sleeve rod fitted onto the inner rod. The tightening ring of the retrieval bag is fitted onto the support wire. The two ends of the support wire pass through the top ring and are fixedly connected to one end of the inner rod. The support wire is spliced ​​with a shearing part. One end of the shearing part near the inner rod has a chamfer, and the other end has a snap-fit ​​protrusion.

[0012] The beneficial effects of this utility model are as follows: During use, the endoscopically sealed specimen retrieval bag is inserted through the abdominal puncture site. After the lesion tissue to be removed is placed into the retrieval bag, the sleeve is pushed forward relative to the inner rod. The sleeve pushes the top ring, which slides past the shearing section with a chamfered end. Simultaneously, the top ring pushes the tightening ring of the retrieval bag to tighten and seal it. Then, the sleeve is pushed backward relative to the inner rod. During this process, due to the resilience of the support wire, the supporting force of the support wire on the inner wall of the top ring gradually increases, increasing the friction between the top ring and the support wire, thus fixing the top ring on the support wire. When the sleeve is pushed backward relative to the inner rod, the top ring does not... The tube slides on the support wire. When the tube is in contact with the top ring, the locking protrusion abuts against the top ring to fix the top ring in a sealed position, ensuring the sealing effect of the retrieval bag. Pushing the tube backward relative to the inner tube, the tube is moved to the designated position. Then, using a special tool, such as special scissors, it is cut through the cutting part from the abdominal puncture site, separating the retrieval bag from the retrieval tube body. After the lesion tissue to be removed is placed into the retrieval bag, the retrieval bag is separated from the retrieval tube body while ensuring a good seal. This allows the retrieval bag containing the lesion tissue to be removed from the puncture site or natural cavity such as the vagina, effectively avoiding the risk of lesion tissue implantation and metastasis to the puncture site.

[0013] Based on the above technical solution, the present invention can be further improved as follows.

[0014] Furthermore, the inner diameter of the top ring is smaller than the inner diameter of the sleeve rod.

[0015] Furthermore, the inner wall of the top ring is provided with a clip frame adapted to the shearing section.

[0016] Furthermore, the inner wall of the top ring is provided with vertical plates. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the initial state structure of the first embodiment of this utility model; Figure 2 This is a schematic diagram of the structure of the tightening bag opening of the present utility model; Figure 3 This is a diagram showing the state of the retrieval bag after it has been separated from the inner rod body according to Scheme 1 of this utility model. Figure 4 This is an exploded view of the structure of Scheme 1 of this utility model; Figure 5 This is a schematic diagram of the initial state structure of Scheme 2 of this utility model; Figure 6 for Figure 5 Enlarged view at point A; Figure 7 This is a schematic diagram of the structure of the tightening bag opening of the second embodiment of the present utility model; Figure 8 for Figure 7 Partial sectional view at point B; Figure 9 This is a diagram showing the state of the retrieval bag after the shearing part of the second embodiment of this utility model is cut off and separated from the retrieval rod body; Figure 10 for Figure 9 Enlarged view at point C.

[0018] The attached diagram lists the components represented by each number as follows: 1. Retrieval rod body; 11. Inner rod; 111. Stud; 112. First handle; 12. Sleeve rod; 121. Slide groove; 122. Second handle; 2. Connector; 21. Protrusion; 22. Threaded hole; 3. Support wire; 31. Shearing part; 311. Snap-fit ​​protrusion; 4. Top ring; 41. Frame; 42. Vertical plate; 5. Retrieval bag. Detailed Implementation

[0019] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0020] Example 1 like Figures 1 to 4 As shown, an endoscopically closable specimen retrieval bag includes a retrieval rod body 1, a connector 2, a support wire 3, a top ring 4, and a retrieval bag 5. The retrieval rod body 1 includes an inner rod 11 and a sleeve rod 12 sleeved on the inner rod 11. The tightening ring of the retrieval bag 5 is sleeved on the support wire 3. The two ends of the support wire 3 pass through the top ring 4 and are fixedly connected to one end of the connector 2. The other end of the connector 2 is threadedly connected to the inner rod 11 located inside the sleeve rod 12. The connector 2 has a protrusion 21 along its length, and the inner wall of the sleeve rod 12 is provided with a groove 121 to accommodate the protrusion 21.

[0021] During use, the endoscopically sealed specimen retrieval bag is inserted through the abdominal puncture site. The lesion tissue to be removed is placed into the retrieval bag 5. The sleeve rod 12 is then pushed forward relative to the inner rod 11. The sleeve rod 12 pushes the top ring 4, which in turn pushes the tightening ring of the retrieval bag 5 to seal it. During this process, due to the resilience of the support wire 3, the supporting force of the support wire 3 on the inner wall of the top ring 4 gradually increases, increasing the friction between the top ring 4 and the support wire 3. This fixes the top ring 4 on the support wire 3, achieving a stable seal on the retrieval bag 5. Then, the inner rod 11 is rotated relative to the sleeve rod 12, and the connector... The protrusion 21 on the 2 is limited by the groove 121, and the connector 2 and the inner rod 11 rotate relative to each other, so that the connector 2 and the inner rod 11 are separated. Finally, the inner rod 11 is pushed forward relative to the sleeve rod 12 to make the connector 2 disengage from the sleeve rod 12, that is, the connector 2 is separated from the retrieval rod body 1. After the lesion tissue to be removed is put into the retrieval bag 5, the retrieval bag 5 is separated from the retrieval rod body 1 while ensuring that the retrieval bag 5 is well sealed. Thus, the retrieval bag containing the lesion tissue is taken out from the puncture site or natural cavity such as the vagina, effectively avoiding the risk of lesion tissue implantation and transfer to the puncture site.

[0022] Example 2 This embodiment is a further improvement on embodiment 1, as detailed below: The inner rod 11 is provided with a stud 111 on one end face of the connector 2, and the corresponding end face of the connector 2 is provided with a threaded hole 22 for the stud 111.

[0023] Since the connector 2 will separate from the inner rod 11 and remain in the body, the stud 111 is placed on the inner rod 11 and removed from the abdominal wall puncture site under the protection of the sleeve rod 12. This effectively avoids the stud 111 from scratching the abdominal wall puncture site tissue, and also effectively avoids the stud 111 from scratching the internal tissue when placed on the connector 2.

[0024] Example 3 This embodiment is a further improvement on embodiment 1, as detailed below: The top ring 4 is 5mm long; this prevents the retrieval rod body 1 from contacting the lesion tissue and effectively prevents the retrieval rod body 1 from being removed from the puncture site, thus preventing implantation metastasis.

[0025] The inner wall of the top ring 4 is provided with a clip frame 41 adapted to the support wire 3; the clip frame 41 is sleeved with the support wire 3, and there is a certain elastic compression between the clip frame 41 and the outer wall of the support wire 3, which can make the top ring 4 firmly clamped at any position of the support wire 3, further ensuring the sealing of the retrieval bag.

[0026] It should be noted that the top ring 4 is made of medical-grade wear-resistant material, and since it is only pushed once during use to lock the top ring 4 onto the retrieval bag, there will be no phenomenon of the top ring 4 wearing off and falling off powder.

[0027] The inner wall of the top ring 4 is provided with a vertical plate 42; by providing the vertical plate 42 on the inner wall of the top ring 4, the top ring 4 can form two channels, and the two ends of the support wire 3 are located in different channels respectively, which can better enable the top ring 4 to push the tightening ring of the retrieval bag 5 to move and tighten the seal on the support wire 3.

[0028] Example 4 This embodiment is a further improvement on embodiment 1, as detailed below: The inner rod 11 is provided with a first handle 112 at the end away from the retrieval bag 5, and the sleeve rod 12 is provided with a second handle 122 at the end away from the retrieval bag 5; by providing the first handle 112 and the second handle 122, it is convenient to operate the inner rod 11 and the sleeve rod 12.

[0029] Example 5 like Figures 5 to 10As shown, an endoscopically closable specimen retrieval bag is characterized by comprising a retrieval rod body 1, a support wire 3, a top ring 4, and a retrieval bag 5; the retrieval rod body 1 includes an inner rod 11 and a sleeve rod 12 sleeved on the inner rod 11; the tightening ring of the retrieval bag 5 is sleeved on the support wire 3, and the two ends of the support wire 3 pass through the top ring 4 and are fixedly connected to one end of the inner rod 11; a shearing part 31 is spliced ​​on the support wire 3, and the shearing part 31 has a chamfer at one end near the inner rod 11 and a snap-fit ​​protrusion 311 at the other end.

[0030] During use, the endoscopic resealable specimen retrieval bag is inserted through the abdominal puncture site. The lesion to be removed is placed into the retrieval bag 5. The sleeve 12 is pushed forward relative to the inner rod 11, and the sleeve 12 pushes the top ring 4. The top ring 4 passes through the shearing section 31, with a chamfered end, and slides across it. Simultaneously, the top ring 4 pushes the tightening ring of the retrieval bag 5 to tighten and seal it. Then, the sleeve 12 is pushed backward relative to the inner rod 11. During this process, due to the resilience of the support wire 3, the supporting force of the support wire 3 on the inner wall of the top ring 4 gradually increases, increasing the friction between the top ring 4 and the support wire 3, thus fixing the top ring 4 on the support wire 3. When the sleeve 12 is pushed backward relative to the inner rod 11, the top ring 4 will not... When the sleeve rod 12 slides on the support wire 3 and the top ring 4, the locking protrusion 311 abuts against the top ring 4 to fix the top ring 4 in a sealed position, ensuring the sealing effect of the retrieval bag 5. The sleeve rod 12 is pushed backward relative to the inner rod 11. When the sleeve rod 12 reaches the designated position, it is cut by inserting a special tool, such as special scissors, through the abdominal puncture site and cutting it from the cutting part 31, thus separating the retrieval bag 5 from the retrieval rod body 1. After the lesion tissue to be removed is put into the retrieval bag 5, the retrieval bag 5 is separated from the retrieval rod body 1 while ensuring a good seal. This allows the retrieval bag containing the lesion tissue to be removed from the puncture site or natural cavity such as the vagina, effectively avoiding the risk of lesion tissue implantation and transfer to the puncture site.

[0031] It should be noted that, in order to prevent the relatively sharp shearing blade from scratching the tissue, the shearing part 31 is made of medical-grade plastic.

[0032] Example 6 This embodiment is a further improvement on embodiment 5, as detailed below: The inner diameter of the top ring 4 is smaller than that of the sleeve rod 12. By pushing the top ring 4 to the position where the retrieval bag 5 is sealed by the sleeve rod 12, the snap-fit ​​protrusion 311 can abut against the corresponding end of the top ring 4, thereby fixing the top ring 4 at the position of the support wire 3, thus more stably abutting against the retrieval bag 5 and further ensuring the sealing of the retrieval bag 5.

[0033] The inner wall of the top ring 4 is provided with a frame 41 adapted to the shearing part 31; one end of the shearing part 31 is chamfered, so that when the retrieval bag is tightened, the shearing part 31 can pass through the frame 41 relatively easily. After passing through, the other end of the shearing part 31 is provided with a locking protrusion 311, which will abut and lock with the frame 41, which can prevent the top ring 4 from detaching from the support wire 3 when the retrieval bag 5 is removed from the patient's body, and further improve the stability of the structure.

[0034] The inner wall of the top ring 4 is provided with a vertical plate 42. The vertical plate 42 is provided on the inner wall of the top ring 4, so that the top ring 4 can form two channels, and the two ends of the support wire 3 are located in different channels respectively, which can better enable the top ring 4 to push the tightening ring of the retrieval bag 5 to move and tighten the seal on the support wire 3.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealable specimen retrieval bag for endoscopic use, characterized in that, The device includes a retrieval rod body (1), a connector (2), a support wire (3), a top ring (4), and a retrieval bag (5). The retrieval rod body (1) includes an inner rod (11) and a sleeve rod (12) sleeved on the inner rod (11). The tightening ring of the retrieval bag (5) is sleeved on the support wire (3). The two ends of the support wire (3) pass through the top ring (4) and are fixedly connected to one end of the connector (2). The other end of the connector (2) is threadedly connected to the inner rod (11) located inside the sleeve rod (12). The connector (2) has a protrusion (21) along its length direction. The inner wall of the sleeve rod (12) is provided with a groove (121) to accommodate the protrusion (21).

2. The endoscopically resealable specimen retrieval bag according to claim 1, characterized in that, The inner rod (11) is provided with a stud (111) on one end face of the connector (2), and the corresponding end face of the connector (2) is provided with a threaded hole (22) adapted to the stud (111).

3. The endoscopically resealable specimen retrieval bag according to claim 1, characterized in that, The length of the top ring (4) is 5 mm.

4. The endoscopically resealable specimen retrieval bag according to claim 1, characterized in that, The inner wall of the top ring (4) is provided with a frame (41) adapted to the support wire (3).

5. The endoscopically resealable specimen retrieval bag according to claim 1, characterized in that, The inner wall of the top ring (4) is provided with a vertical plate (42).

6. The endoscopically resealable specimen retrieval bag according to claim 1, characterized in that, The inner rod (11) has a first handle (112) at the end away from the retrieval bag (5), and the sleeve rod (12) has a second handle (122) at the end away from the retrieval bag (5).

7. A sealable specimen retrieval bag for endoscopic use, characterized in that, The device includes a retrieval rod body (1), a support wire (3), a top ring (4), and a retrieval bag (5). The retrieval rod body (1) includes an inner rod (11) and a sleeve rod (12) sleeved on the inner rod (11). The tightening ring of the retrieval bag (5) is sleeved on the support wire (3). The two ends of the support wire (3) pass through the top ring (4) and are fixedly connected to one end of the inner rod (11). The support wire (3) is spliced ​​with a shearing part (31). The shearing part (31) has a chamfer at one end near the inner rod (11) and a snap-fit ​​protrusion (311) at the other end.

8. The endoscopically resealable specimen retrieval bag according to claim 7, characterized in that, The inner diameter of the top ring (4) is smaller than the inner diameter of the sleeve (12).

9. The endoscopically resealable specimen retrieval bag according to claim 7, characterized in that, The inner wall of the top ring (4) is provided with a frame (41) adapted to the shearing part (31).

10. The endoscopically resealable specimen retrieval bag according to claim 7, characterized in that, The inner wall of the top ring (4) is provided with a vertical plate (42).

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