Specimen fetching bag

Abstract

The utility model discloses a specimen fetching bag, which relates to the technical field of medical instruments, and comprises an outer tube, an inner tube and an inner tube, the inner pipe is provided with an operation end which is arranged in the outer pipe in a sliding and penetrating mode, and the operation end is provided with a fixing part; the elastic strip is provided with a fixed end and a free end, the fixed end is connected with the outer tube, the elastic strip is used for sleeving the bag body, the bag body is provided with a contraction line, and the contraction line penetrates to the outside from the inner tube; wherein the specimen fetching bag has a first state and a second state, and in the first state, the free end extends into the outer tube and is clamped by the fixing part and the outer tube in a matched manner; in the second state, the fixing part drives the free end to penetrate out of the outer pipe so as to release the free end. The structure of the specimen fetching bag is improved, so that the bag body can be repeatedly opened, the specimen can be conveniently fetched for multiple times, and meanwhile, an operation part can be independently fetched without occupying a channel.

Description

Technical Field

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

[0002] Current disposable abdominal retrieval bags can generally only be opened and closed once, and need to be removed after one use. Moreover, the channel needs to be removed at the same time when the retrieval bag is removed, which is not only cumbersome to use but also occupies the channel and affects the efficiency of the operation. Utility Model Content

[0003] The main purpose of this invention is to propose a specimen retrieval bag that allows for repeated opening and closing of the bag without obstructing the passageway.

[0004] To achieve the above objectives, this utility model proposes a specimen retrieval bag, comprising:

[0005] outer tube;

[0006] The inner tube has an operating end, which is slidably inserted into the outer tube, and the operating end is provided with a fixing part;

[0007] An elastic strip has a fixed end and a free end. The fixed end is connected to the outer tube. The elastic strip is used to cover the bag body. The bag body has a shrink line that passes through the inner tube to the outside.

[0008] The specimen retrieval bag has a first state and a second state. In the first state, the free end extends into the outer tube and is clamped by the fixing part in cooperation with the outer tube. In the second state, the fixing part drives the free end to pass out of the outer tube to release the free end.

[0009] In one embodiment, the edge of the operating end is provided with an axially extending mounting port, the fixing part is configured as a limiting groove, the limiting groove is provided on the inner wall of the side of the mounting port facing the outer tube, and the free end is provided with a limiting body, which is engaged in the limiting groove.

[0010] In one embodiment, the outer wall of the operating end is provided with a clearance opening, which is located on opposite sides of the inner tube, and the fixing end extends into the outer tube from the clearance opening and is connected to the inner wall of the outer tube.

[0011] In one embodiment, the inner wall of the outer tube is provided with a locking hole, and the fixed end has a protruding locking body that engages with the locking hole.

[0012] In one embodiment, at least two locking holes are provided, and the at least two locking holes are spaced apart along the axial direction of the outer tube, with each locking hole engaging with a locking body.

[0013] In one embodiment, the elastic strip is made of PVC.

[0014] In one embodiment, the edge of the free end facing the outer tube is provided with a chamfered structure.

[0015] In one embodiment, an axially extending channel is provided inside the inner tube, and the contraction line exits from the channel.

[0016] In this utility model, the fixed end of the elastic strip is fixed to the outer tube. In the first state, the free end extends between the outer tube and the inner tube and is clamped by the fixing part and the outer tube. By driving the inner tube to extend and retract inside the outer tube, the elastic strip can be contracted. The bag is fitted on the elastic strip, which can drive the opening and closing of the bag opening, realizing the repeated opening and closing of the retrieval bag, which is convenient for placing multiple specimens and improves the convenience of surgery. In addition, the inner tube can extend out of the outer tube. In the second state, the fixing part extends out of the outer tube. At this time, the free end loses the limitation of the outer tube and can fall off from the fixing part. At this time, the elastic strip can be pulled out from the bag. Then the inner tube and the outer tube are pulled out from the channel, and the bag can be left in the body. In this way, the channel does not need to be disassembled and can be used for other instruments to enter again, realizing the effect of the specimen retrieval bag not occupying the channel. Attached Figure Description

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the structure of the specimen retrieval bag provided by this utility model;

[0019] Figure 2 A cross-sectional schematic diagram of the specimen retrieval bag provided by this utility model;

[0020] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0021] Figure 4 A partially enlarged view of the outer tube of the specimen retrieval bag provided by this utility model;

[0022] Figure 5 A partially enlarged view of the inner tube of the specimen retrieval bag provided by this utility model.

[0023] Description of Figure Numbers:

[0024] 100, Outer tube; 110, Clip hole; 200, Inner tube; 210, Mounting port; 220, Limiting groove; 230, Clearance opening; 240, Channel; 300, Elastic strip; 310, Fixed end; 320, Free end; 330, Limiting body; 340, Clip body; 350, Chamfered structure.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0027] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] To enable repeated opening of the retrieval bag and address the issue of existing retrieval bags occupying channel 240, this technical solution proposes a specimen retrieval bag, comprising:

[0030] Outer tube 100;

[0031] The inner tube 200 has an operating end, which is slidably inserted into the outer tube 100, and the operating end is provided with a fixing part.

[0032] The elastic strip 300 has a fixed end 310 and a free end 320. The fixed end 310 is connected to the outer tube 100. The elastic strip 300 is used to cover the bag body. The bag body has a shrink line that passes through the inner tube 200 to the outside.

[0033] The specimen retrieval bag has a first state and a second state. In the first state, the free end 320 extends into the outer tube 100 and is clamped by the fixing part in cooperation with the outer tube 100. In the second state, the fixing part drives the free end 320 to pass out of the outer tube 100 to release the free end 320.

[0034] In this utility model, the fixed end 310 of the elastic strip 300 is fixed to the outer tube 100. In the first state, the free end 320 extends between the outer tube 100 and the inner tube 200 and is clamped by the fixing part and the outer tube 100. By driving the inner tube 200 to extend and retract within the outer tube 100, the elastic strip 300 can be contracted. A bag is fitted onto the elastic strip 300, which can drive the opening and closing of the bag opening, realizing the repeated opening and closing of the retrieval bag, facilitating the placement of multiple specimens, and improving the convenience of surgery. In addition, the inner tube 200 can extend out of the outer tube 100. In the second state, the fixed part extends out of the outer tube 100. At this time, the free end 320 loses the limitation of the outer tube 100 and can be detached from the fixed part. At this time, the elastic strip 300 can be pulled out from the bag body. Then, the inner tube 200 and the outer tube 100 are pulled out from the channel 240, and the bag body can remain in the body. In this way, the channel 240 does not need to be disassembled and can be used for other instruments to enter again, realizing the effect that the specimen retrieval bag does not occupy the channel 240.

[0035] like Figures 1 to 5In one embodiment of this utility model, the specimen retrieval bag includes an outer tube 100, which is hollow inside. During surgery, the outer tube 100 can enter the human body through the channel 240 formed by the catheter inserted into the body. The specimen retrieval bag also includes an inner tube 200, which has an operating end that extends into the outer tube 100. The inner tube 200 can slide axially relative to the outer tube 100, and a fixing part is provided on the operating end. In addition, the specimen retrieval bag also includes an elastic strip 300, which can be made of a bendable elastic material. In this embodiment, the elastic strip 300... Strip 300 can be made of PVC material similar to cable ties, ensuring both sufficient bending and deformation capacity and non-toxicity. This elastic strip 300 has a fixed end 310 and a free end 320. The fixed end 310 can be fixed to the end of the outer tube 100 corresponding to the operating end by means of adhesive bonding or welding. The free end 320 can extend between the outer tube 100 and the inner tube 200 and is clamped by the fixing part and the inner wall of the outer tube 100. To ensure a firm clamping, the fixing part and the free end 320 can be connected by an interlocking structure, for example... The fixing part can be teeth set on the outer wall of the operating end, and the free end 320 can be provided with teeth that match the teeth on the fixing part. The teeth on the free end 320 and the teeth on the fixing part mesh with each other and are housed together in the outer tube 100. When the inner tube 200 slides, the inner tube 200 can drive the free end 320 to move along the axial direction of the outer tube 100, so that the elastic strip 300 retracts into the outer tube 100 or is released from the outer tube 100. This state is the first state of the specimen retrieval bag. In use, the bag body for storage can be threaded onto the elastic strip 300, and then the inner tube 200 can be driven to slide. When the elastic strip 300 retracts into the outer tube 100, the length of the elastic strip 300 outside the outer tube 100 shortens. The elastic strip 300 and the end of the outer tube 100 cooperate to squeeze the bag opening and close the bag opening. When the elastic strip 300 is released from the outer tube 100, the length of the elastic strip 300 outside the outer tube 100 increases. Because the elastic strip 300 is elastic, it can be stretched outward to open the bag opening. By repeating this operation, the bag can be opened and closed repeatedly. Specimens can be placed into the bag multiple times during the operation, improving the convenience of the operation.In addition, this specimen retrieval bag also has a second state. When adjusted to the second state, the operating end of the inner tube 200 can extend from the outer tube 100. At this time, the free end 320 of the operating end driving the elastic strip 300 also extends from the outer tube 100. The free end 320 is no longer restricted by the inner wall of the outer tube 100, so it can be detached from the fixing part. At this time, the bag body can be separated from the elastic strip 300 from the free end 320. In use, the bag body can also be provided with a shrink line for tightening the bag opening. The shrink line extends from the inner tube 200 to the outside. The principle of the shrink line tightening the bag opening can refer to the design of existing bags on the market. When the specimen is completed... After insertion, the bag opening can be sealed by pulling the shrink line from the outside. Then, the specimen retrieval bag is adjusted to the second state. At this time, the inner tube 200, outer tube 100 and elastic strip 300 can be pulled out from the channel 240 together, while the bag body can remain in the body. At this time, the channel 240 is open, and the retrieval bag or other instruments can be put in and out later. The bag body in the body can be taken out from the body when the surgery is completed and the channel 240 is removed. In this way, the channel 240 does not need to be established repeatedly during the operation, achieving the effect of not occupying the channel 240, which facilitates the operation, shortens the operation time, and improves the safety of the operation.

[0036] This utility model embodiment provides a structure for the fixing part, such as Figure 3 and Figure 5 In one embodiment of this utility model, an axially extending mounting port 210 is provided on the edge of the operating end, and the fixing part is configured as a limiting groove 220. The limiting groove 220 is provided on the inner wall of the mounting port 210 facing the outer tube 100. A limiting body 330 protrudes from the free end 320 and is inserted into the limiting groove 220. The limiting groove 220 can be a square groove, and the limiting body 330 can also be a square structure with the size of the limiting body 330 matching the size of the limiting groove 220. The depth of the mounting port 210 can be greater than or equal to the thickness of the free end 320. During assembly, the mounting port 210 can be extended out of the outer tube 100 first, the free end 320 can be inserted into the mounting port 210, and the limiting body 330 can be embedded. The free end 320 is inserted into the limiting groove 220, and then the free end 320 and the mounting port 210 are simultaneously retracted into the outer tube 100. At this time, the outer tube 100 restricts the limiting body 330 from disengaging from the limiting groove 220. When the inner tube 200 slides, the side wall of the limiting groove 220 can abut against the outer wall of the limiting body 330, causing the elastic strip 300 to move. When the mounting port 210 extends out of the outer tube 100, the limiting body 330 can disengage from the limiting groove 220, thus realizing the disassembly of the free end 320. This solution achieves the fixation of the free end 320 in the first state and the release in the second state through the cooperation of this simple structure of the limiting groove 220 and the limiting body 330, which reduces the design difficulty and also helps to reduce manufacturing costs.

[0037] like Figure 3 and Figure 5In one embodiment of this utility model, an avoidance opening 230 is provided on the outer wall of the operating end. The avoidance opening 230 and the mounting opening 210 are respectively located on opposite sides of the inner tube 200. The fixed end 310 extends into the outer tube 100 from the avoidance opening 230 and connects with the inner wall of the outer tube 100. The length of the avoidance opening 230 can be greater than the required travel of the inner tube 200. The avoidance opening 230 and the outer tube 100 together form an avoidance space. The fixed end 310 can extend into the avoidance space from the avoidance opening 230 and be bonded or welded to the inner wall of the outer tube 100. This not only facilitates the connection between the fixed end 310 and the outer tube 100, but also prevents the fixed end 310 from interfering with the outside, ensuring the reliability of the connection between the fixed end 310 and the outer tube 100.

[0038] like Figure 3 and Figure 4 In one embodiment of this utility model, a locking hole 110 is provided on the inner wall of the outer tube 100, and a locking body 340 protrudes from the fixed end 310 and engages with the locking hole 110; wherein, the locking hole 110 extends radially along the outer tube 100 and penetrates the tube wall of the outer tube 100, and a locking body 340 matching the locking hole 110 protrudes from the side of the fixed end 310, the locking body 340 can be embedded into the locking hole 110 and engage with the locking hole 110. When the elastic strip 300 is extended or retracted, the locking body 340 will be subjected to an axial force along the outer tube 100, so the side wall of the locking body 340 will abut against the inner wall of the locking hole 110, and the locking body 340 in Under the aforementioned force, the elastic strip 300 will not detach from the locking hole 110, ensuring the reliability of the connection between the fixed end 310 and the outer tube 100. When it is necessary to disassemble the elastic strip 300, simply remove the inner tube 200 first, and then apply an axial force along the locking hole 110 to the locking body 340, which will cause the locking body 340 to detach from the locking hole 110. In this design, the aforementioned structure of the locking body 340 and the locking hole 110 ensures that the elastic element is securely connected to the outer tube 100 during normal use of the specimen retrieval bag, while also facilitating the removal of the elastic element from the outer tube 100, thus simplifying the assembly and disassembly of the specimen retrieval bag. Furthermore, as... Figure 3 In another embodiment of this utility model, at least two locking holes 110 are provided, and the at least two locking holes 110 are spaced apart along the axial direction of the outer tube 100. Each locking hole 110 is engaged with a locking body 340. This can improve the engagement strength between the elastic strip 300 and the outer tube 100, making the connection between the elastic strip 300 and the outer tube 100 more secure, and at the same time, it will not affect the disassembly of the elastic element. In addition, the arrangement of the locking holes 110 along the axial direction of the outer tube 100 also allows the fixed end 310 to be designed to be narrower, which is beneficial to reduce the amount of material used and reduce costs.

[0039] like Figure 3In one embodiment of this utility model, a chamfered structure 350 is provided on the edge of the free end 320 facing the outer tube 100; during the sliding process of the inner tube 200, the chamfered structure 350 can prevent the edge of the free end 320 from rubbing against the inner wall of the outer tube 100, prevent the limiting body 330 from getting stuck between the inner tube 200 and the outer tube 100, ensure the smooth retraction and extension of the elastic strip 300, and improve the reliability of the specimen retrieval bag.

[0040] like Figure 3 and Figure 5 In one embodiment of the present invention, an axially extending channel 240 is provided inside the inner tube 200, and the shrink line extends out from the channel 240; wherein, the channel 240 passes through the inner tube 200 axially, and the shrink line extends out from the channel 240, thus providing protection for the shrink line. In addition, pulling the shrink line will not affect the inner tube 200 or the outer tube 100.

[0041] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A specimen retrieval bag, characterized in that, include: outer tube; The inner tube has an operating end, which is slidably inserted into the outer tube, and the operating end is provided with a fixing part; An elastic strip has a fixed end and a free end. The fixed end is connected to the outer tube. The elastic strip is used to cover the bag body. The bag body has a shrink line that passes through the inner tube to the outside. The specimen retrieval bag has a first state and a second state. In the first state, the free end extends into the outer tube and is clamped by the fixing part in cooperation with the outer tube. In the second state, the fixing part drives the free end to pass out of the outer tube to release the free end.

2. The specimen retrieval bag as described in claim 1, characterized in that, The edge of the operating end is provided with an axially extending mounting port, the fixing part is configured as a limiting groove, the limiting groove is provided on the inner wall of the side of the mounting port facing the outer tube, and the free end is provided with a limiting body, which is inserted into the limiting groove.

3. The specimen retrieval bag as described in claim 2, characterized in that, An clearance opening is provided on the outer wall of the operating end. The clearance opening and the mounting opening are located on opposite sides of the inner tube. The fixing end extends into the outer tube from the clearance opening and connects to the inner wall of the outer tube.

4. The specimen retrieval bag as described in claim 3, characterized in that, The inner wall of the outer tube is provided with a locking hole, and the fixed end has a protruding locking body that engages with the locking hole.

5. The specimen retrieval bag as described in claim 4, characterized in that, At least two locking holes are provided, and the at least two locking holes are spaced apart along the axial direction of the outer tube. Each locking hole is engaged with a locking body.

6. The specimen retrieval bag as described in claim 1, characterized in that, The elastic strip is made of PVC.

7. The specimen retrieval bag as described in claim 1, characterized in that, The edge of the free end facing the outer tube has a chamfered structure.

8. The specimen retrieval bag as described in claim 1, characterized in that, An axially extending channel is provided inside the inner tube, and the contraction line exits from the channel.

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