Tissue removal bag for removing tissue from surgical site
By designing a single component tissue removal bag made of plastic substrate and using elastic pull rope to achieve closure of the opening, the complex manufacturing and operation of tissue removal bags in the prior art is solved, and simpler operation and good balance of strength, flexibility and functionality is achieved.
Patent Information
- Application Number
- CN202420467941.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-03-11
AI Technical Summary
Existing tissue removal bags are complex in manufacturing and operation, resulting in difficult manufacturing and difficult operation, requiring a simpler bag or bag that can achieve a proper balance between strength, flexibility and functionality.
A single member tissue removal bag made of a plastic substrate is designed, which includes an opening located at the top portion, and a body portion; and an elastic drawstring that closes the opening of the bag by actuation of the drawstring.
This enables simpler manufacturing and operation, reduces training time, and achieves a proper balance in strength, flexibility and functionality, suitable for tissue removal in endoscopic surgery.
Smart Images
Figure CN222516893U_ABST
Abstract
Description
Technical Field
[0001] Engineering related to tissue retrieval bags used to remove tissue from a surgical site. Background Art
[0002] Endoscopic surgery involves making many tiny incisions or openings in the patient to perform the surgery. As a result, the patient may need fewer days instead of weeks to recover. These surgeries can remove diseased tissue or organs from areas of the body such as the abdominal cavity, or repair body defects. Certain surgeries involve removing or removing biological material or tissue from the body through small incisions, small natural orifices, or small diameter laparoscopic access ports.
[0003] In order to be able to remove tissue through a tiny opening, orifice or port during endoscopic surgery, several tissue retrieval packages or bags have been developed. In addition, many tools have been developed to introduce, open, position, close and remove tissue retrieval bags from patients, as well as remove bags and the tissue contained in the bags from the surgical site.
[0004] However, existing or disclosed bags or pouches intended for this purpose generally include multiple components and are therefore complex to manufacture. The use of separate multiple components also results in additional difficulties during actual operation, thereby requiring more training time for new practitioners. Therefore, there is a need to develop a simpler bag or pouch that still has an acceptable level of functionality, strength, and flexibility. Utility Model Content
[0005] One of the purposes of the present invention is to solve the above problems and create a simpler bag or pouch that strikes an appropriate balance between strength, flexibility and functionality. A tissue retrieval bag for retrieval of tissue from a surgical site, the bag comprising: an opening at a top portion, and a body portion; and an elastic drawstring having a first end attached to the opening and a second end positioned away from the corresponding opening of the bag, wherein the bag and the drawstring are made of a single component of a plastic substrate, the first end of the drawstring, which is defined as a first portion of the drawstring, is attached to a predetermined partial opening area, and a predetermined second portion of the drawstring, which is a subsequent portion of the first portion, is arranged in a circular manner to form a ring, and a predetermined third portion of the drawstring, which is a subsequent portion of the second portion, toward the other end is configured to be arranged along a circumferential portion of the opening and extend through the ring, thereby allowing the opening of the bag to be closed by actuation of the drawstring.
[0006] In one aspect, the opening of the bag further comprises an embossed planar ring, and the elastic draw cord is disposed partially along a circumferential portion of the opening on a surface of the embossed planar ring.
[0007] In another aspect, the embossed planar ring includes at least one groove for coupling at least a portion of an elastic draw cord to a designated area of the embossed planar ring.
[0008] In another aspect, the embossed planar loop includes at least one protruding edge formed as a hook-shaped member for securing at least a portion of an elastic draw cord to a designated area of the embossed planar loop.
[0009] On the other hand, the embossed planar ring comprises a non-embossed structure and an embossed structure, wherein the vertical thickness of the embossed structure is in the range of 110% to 250% of the thickness of the non-embossed structure, preferably, the vertical thickness of the embossed structure is in the range of 120% to 220% of the thickness of the non-embossed structure, and the cross-sectional area of the embossed structure is in the range of 0.15 square millimeters to 1.5 square millimeters, preferably, the cross-sectional area of the embossed structure is in the range of 0.25 square millimeters to 1.0 square millimeters. The ratio between the width of the circular ring and the vertical thickness of the embossed structure is preferably in the range of 5 to 100, preferably, the ratio between the width of the circular ring and the vertical thickness of the embossed structure is in the range of 10 to 75. The ratio of the diameter of the opening to the width of the circular ring may be in the range of 4 to 20 and preferably in the range of 6 to 15.
[0010] In another aspect, the draw cord includes a tab at the distal end to allow capture of the draw cord at the tab.
[0011] In another aspect, the plastic substrate has a thickness of 100 to 500 microns.
[0012] In another aspect, the plastic substrate is a thermoplastic polymer, a polyolefin or a vinyl polymer, and preferably the plastic substrate is a polyethylene copolymer or a linear semi-crystalline polyethylene-octene copolymer having a melt flow index in the range of 0.5 g / 10 min to 5 g / 10 min.
[0013] The objects and unique features and other aspects of the present invention will be described in more detail through the included embodiments and drawings, and the best mode will also be further described. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 A possible implementation of the tissue retrieval bag according to the present invention is shown. DETAILED DESCRIPTION
[0015] In order to make the description clearer, the utility model will be described in more detail by way of example and with reference to the accompanying drawings. The same components in these drawings will be identified by the same reference numerals. However, providing a more detailed description does not constitute any limitation to the scope of the utility model.
[0016] In this regard, the present invention can be implemented or applied in various ways. This disclosure will present different examples as references for implementations or applications with the same features. However, as described above, providing these does not impose any limitation on the scope of the present invention.
[0017] A tissue removal bag for removing tissue from a surgical site, the bag 101 comprising: an opening at a top portion, and a body portion; an elastic drawstring 103 having a first end attached to the opening and a second end positioned away from the corresponding opening of the bag, wherein the bag and the drawstring are manufactured as a single component from a plastic substrate, the first end of the drawstring, defined as a first portion of the drawstring, is attached to a predetermined partial opening area, and a predetermined second portion of the drawstring, which is a subsequent portion of the first portion, is arranged in a circular manner to form a ring, and a predetermined third portion of the drawstring, which is a subsequent portion of the second portion, toward the other end is configured to be arranged along a circumferential portion of the opening and extend through the ring, thereby allowing the opening of the bag to be closed by actuation of the drawstring. Figure 1 A possible implementation of the tissue retrieval bag according to the present invention is shown.
[0018] In a preferred embodiment, the opening of the bag further comprises an embossed planar ring 105, and the elastic drawstring is disposed partially on the surface of the embossed planar ring along the circumferential portion of the opening. The embossed planar ring may comprise at least one groove 107 for coupling at least a portion of the elastic drawstring to a designated area of the embossed planar ring. Alternatively, the embossed planar ring comprises at least one protruding edge formed as a hook-shaped member for securing at least a portion of the elastic drawstring to a designated area of the embossed planar ring. In a preferred embodiment, the drawstring may comprise a tab 109 at the distal end to allow the drawstring to be captured at the tab.
[0019] It should be noted that the combination of the withdrawal line and the container is a single component. In a preferred embodiment, the embossed planar ring 105 comprises a non-embossed structure and an embossed structure, wherein the vertical thickness of the embossed structure is in the range of 110% to 250% of the thickness of the non-embossed structure compared to the thickness of the non-embossed structure, preferably, the vertical thickness of the embossed structure is in the range of 120% to 220% of the thickness of the non-embossed structure, and the cross-sectional area of the embossed structure is in the range of 0.15 square millimeters to 1.5 square millimeters, preferably, the cross-sectional area of the embossed structure is in the range of 0.25 square millimeters to 1.0 square millimeters. The ratio between the width of the circular ring and the vertical thickness of the embossed structure is preferably in the range of 5 to 100, preferably, the ratio between the width of the circular ring and the vertical thickness of the embossed structure is in the range of 10 to 75. The ratio of the diameter of the opening to the width of the circular ring may be in the range of 4 to 20, and preferably, the ratio of the diameter of the opening to the width of the circular ring is in the range of 6-15.
[0020] The shape of the embossed structure may be a geometric shape in part or in its entirety. Such a geometric shape may be selected from the group consisting of a triangle, a rectangle, a circle, a trapezoid or a combination of members of the group. The overall embossed structure may be formed of a plurality of smaller structures positioned together as a cluster on the surface, wherein the density of the smaller structures in the cluster is in the range of 10-200 per square inch, and preferably in the range of 40-120 per square inch on the planar surface of the ring.
[0021] In a preferred embodiment, the retrieval wire is extendable in a range of 150% to 600% and preferably in a range of 200% to 500% from the initial length.
[0022] In actual operation, the practitioner can perform the desired operation. After removing the biological material or tissue from the body, the physician can place such biological material or tissue from the body into a tissue removal bag. Thereafter, the physician can capture a portion of the drawstring, preferably at the end near the lug or at the lug, and pull the drawstring through the formed loop to narrow the opening and secure the biological material or tissue inside.
[0023] The tissue retrieval bag for removing tissue from a surgical site according to the utility model can be manufactured using a plastic substrate having a thickness in the range of 100 μm to 500 μm. Such a plastic substrate can be a thermoplastic polymer, a polyolefin or a vinyl polymer. However, it is preferred to use a polyethylene copolymer or a linear semi-crystalline polyethylene-octene copolymer having a melt flow index in the range of 0.5 g / 10 min to 5 g / 10 min to manufacture the tissue retrieval bag according to the utility model.
[0024] Although the utility model is described in detail with reference to the accompanying drawings as examples, it should be understood that the utility model is intended to cover any modification or solution provided by those skilled in the art. The scope of the utility model is based on the claims, and also covers any features of the utility model that are not explicitly covered by the claims but still produce the same effect as the utility model.
[0025] Best Practices for Utility Models
[0026] As disclosed in the disclosure of the present utility model.
Claims
1. A tissue retrieval bag for removing tissue from a surgical site, the tissue retrieval bag comprising: an opening in the top portion, and a body portion; as well as an elastic drawstring (103) having a first end attached to the opening and a second end positioned away from a corresponding opening of the tissue retrieval bag, wherein the tissue retrieval bag and the elastic drawstring are manufactured as a single component from a plastic substrate, It is characterized in that the first end portion of the elastic pull rope, which is defined as the first portion (A) of the elastic pull rope, is attached to a predetermined partial opening area, and a predetermined second portion (B) of the elastic pull rope, which is a subsequent portion of the first portion, is arranged in a circular manner to form a ring member, and a predetermined third portion (C) of the elastic pull rope, which is a subsequent portion of the second portion, toward the other end is constructed to be arranged along the circumferential portion of the opening and extend through the ring member, thereby allowing the opening of the tissue retrieval bag to be closed by actuating the elastic pull rope.
2. The tissue retrieval bag for removing tissue from a surgical site according to claim 1, characterized in that: The opening of the tissue retrieval bag further comprises an embossed planar ring (105), and the elastic drawstring is partially disposed on the surface of the embossed planar ring along a circumferential portion of the opening.
3. The tissue retrieval bag for removing tissue from a surgical site according to claim 2, characterized in that: The embossed planar ring includes at least one groove (107) for coupling at least a portion of the elastic draw cord to a designated area of the embossed planar ring.
4. The tissue removal bag for removing tissue from a surgical site according to claim 2 or 3, characterized in that: The embossed planar loop includes at least one protruding edge formed as a hook-shaped member for securing at least a portion of the elastic draw cord to a designated area of the embossed planar loop.
5. The tissue removal bag for removing tissue from a surgical site according to claim 2 or 3, characterized in that: The embossed planar ring (105) comprises a non-embossed structure and an embossed structure, wherein, compared with the thickness of the non-embossed structure, the vertical thickness of the embossed structure is in the range of 110% to 250% of the thickness of the non-embossed structure, and the cross-sectional area of the embossed structure is in the range of 0.15 square millimeters to 1.5 square millimeters.
6. The tissue removal bag for removing tissue from a surgical site according to claim 2 or 3, characterized in that: The embossed planar ring (105) comprises a non-embossed structure and an embossed structure, wherein the vertical thickness of the embossed structure is in the range of 120% to 220% of the thickness of the non-embossed structure compared to the thickness of the non-embossed structure.
7. The tissue removal bag for removing tissue from a surgical site according to claim 2 or 3, characterized in that: The embossed planar ring (105) comprises a non-embossed structure and an embossed structure, wherein the cross-sectional area of the embossed structure is in the range of 0.25 square millimeters to 1.0 square millimeters.
8. The tissue retrieval bag for removing tissue from a surgical site according to claim 5, characterized in that: The ratio between the width of the circular embossed planar ring and the vertical thickness of the embossed structure is in the range of 5 to 100.
9. The tissue retrieval bag for removing tissue from a surgical site according to claim 5, characterized in that: The ratio between the width of the circular embossed planar ring and the vertical thickness of the embossed structure is in the range of 10 to 75.
10. The tissue retrieval bag for removing tissue from a surgical site according to claim 8, characterized in that: The ratio of the diameter of the opening to the width of the circular embossed planar ring is in the range of 4 to 20.
11. The tissue retrieval bag for removing tissue from a surgical site according to claim 8, characterized in that: The ratio of the diameter of the opening to the width of the circular embossed planar ring is in the range of 6 to 15.
12. The tissue retrieval bag for removing tissue from a surgical site according to claim 1, characterized in that: The elastic draw cord includes a tab (109) at a distal end portion to allow capture of the elastic draw cord at the tab.
13. The tissue retrieval bag for removing tissue from a surgical site according to claim 1, characterized in that: The plastic substrate has a thickness in a range of 100 micrometers to 500 micrometers.
14. The tissue retrieval bag for removing tissue from a surgical site according to claim 1, characterized in that: The plastic substrate is a thermoplastic polymer, a polyolefin or a vinyl polymer.
15. The tissue retrieval bag for removing tissue from a surgical site according to claim 1, characterized in that: The plastic substrate is a polyethylene copolymer or a linear semi-crystalline polyethylene-octene copolymer having a melt flow index in the range of 0.5 g / 10 min to 5 g / 10 min.