JP5503257B2 - Tissue collection bag - Google Patents

Description

  The present invention relates to a tissue collection bag that accommodates a tissue excised in an endoscopic surgical operation, removes it from the body, and collects it.

  Conventionally, as the tissue collection bag, a bag-like body for storing the excised tissue, a plurality of string-through holes arranged on the edge of the opening of the bag-like body, and the bag inserted through the string-through hole What is provided with the closing string which can open and close the opening part of a cylindrical body is known (for example, refer patent document 1).

  The tissue collection bag is made of a non-toxic and thin flexible resin such as polyethylene, and the bag-like body has a rectangular bottom and is sealed by heat welding. Then, after the excised tissue is accommodated in the bag-like body, the opening is narrowed and closed by pulling the closing string.

  When the tissue collection bag is used, the tissue collection bag is wound into a cylindrical shape with the bottom portion as an axis, and stored in an outer tube having an inner diameter of about 5 mm. The tissue collection bag is used after being introduced into the body cavity through the incision hole, and then pulled out from the outer tube by forceps inserted into the body cavity from another incision hole and deployed. Is done.

Noto 3063390 gazette

  However, since the conventional tissue collection bag is housed in the mantle tube in a state of being wound in a columnar shape, it has a so-called curl so that it can be easily opened when pulled out from the mantle tube in a body cavity. This is disadvantageous in that it cannot be performed and it is difficult to maintain the open state.

  An object of the present invention is to provide a tissue collection bag that can be easily opened in a body cavity and can maintain an open state by eliminating such disadvantages.

In order to achieve such an object, the present invention has a bag-like body made of a thin and flexible resin that accommodates a tissue excised in endoscopic surgery, and is arranged on the edge of the opening of the bag-like body. A plurality of string-passing holes and a closing string that is inserted through the string-passing holes and allows the opening of the bag-like body to be opened and closed; The tissue collection bag includes a pair of legs made of a plastically deformable material and a joint that joins at one end of the legs, and is detachably attached along the opening. An opening maintaining member that is plastically deformed at the time of opening to maintain the opening state; and a plurality of leg insertion holes that are arranged along the opening and through which the legs of the opening maintaining member are detachably inserted. Of the plurality of leg insertion holes, the leg insertion holes formed at the end opposite to the joint are other The leg portion is formed smaller than the leg insertion hole, and the leg portion is connected to an end portion on the opposite side to the joint portion via a narrow width portion, and the leg insertion hole formed in the small size can be inserted. And an engaging portion that engages with the leg insertion hole and prevents it from coming off .

  The tissue collection bag of the present invention is wound into a cylindrical shape in the same manner as a conventional tissue collection bag and stored in an outer tube having an inner diameter of about 5 mm. Then, after the mantle tube is introduced into the body cavity from the incision hole, the mantle tube is pulled out from the mantle tube by a forceps inserted into the body cavity from another incision hole, and is deployed for use.

  At this time, since the tissue collection bag of the present invention includes the opening maintaining member mounted along the opening, the opening can be easily opened by plastically deforming the opening maintaining member. In addition, once the opening maintaining member is plastically deformed, the plastic deformation is irreversible in a state where no external force is applied, and therefore the opening state of the opening can be easily maintained by the opening maintaining member.

  Further, the opening maintaining member is detachably attached. Therefore, after the excised tissue is stored in the tissue collection bag of the present invention, the opening can be closed by removing the opening maintaining member from the tissue collection bag.

In tissue collection bag of the present invention, the opening maintaining member includes a leg portion of the pair consisting of 塑 of deformable material, and a joint portion for joining to each other at one end of the leg portion. Examples of the plastically deformable material include polypropylene, polyethylene, and polyamide.

Further, the tissue collection bag of the present invention is the column set along the front Symbol opening, by providing a plurality of leg portion insertion hole legs of the opening maintaining member is inserted detachably, the opening maintaining member Can be detachably mounted.
Further, in the tissue collection bag of the present invention, the leg portion is provided with an opening by being provided with an engaging portion that engages with the leg portion insertion hole and prevents the leg portion from being inserted at an end portion opposite to the joint portion. It is possible to prevent the opening maintaining member from dropping off in an unintended situation.

  In the tissue collection bag of the present invention, the leg insertion hole may be provided, for example, between the opening and the string passage hole, and on the side opposite to the opening with respect to the string passage hole. It may be provided.

The perspective view which shows the example of 1 structure of the structure | tissue collection bag of this invention. The perspective view which shows opening operation of the structure | tissue collection bag shown in FIG. The perspective view which shows operation which closes the opening part of the structure | tissue collection bag shown in FIG. The perspective view which expands and shows the principal part of the other structural example of the structure | tissue collection bag of this invention. The perspective view which shows the further another structural example of the structure | tissue collection bag of this invention.

  Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

  As shown in FIG. 1, the tissue collection bag 1 of the present embodiment includes a bag-like body 2 that accommodates the excised tissue, and an opening maintaining member 4 that maintains the opening state of the opening 3 of the bag-like body 2. I have.

  The bag-like body 2 is formed by, for example, a cylindrical body made of a non-toxic and thin flexible resin such as polyethylene, and the end opposite to the opening 3 is closed by a seam portion 5 that is heat-welded. ing. In addition, the bag-like body 2 includes a plurality of string passage holes 6 arranged along the opening 3, a closing string 7 that is inserted through the string passage hole 6 to open and close the opening 3, and the opening 3 And a leg insertion hole 8 arranged between the string passage hole 6 and the leg insertion hole 6.

  The opening maintaining member 4 includes, for example, a pair of leg portions 9 and 9 made of a plastically deformable material such as polyethylene, and a joint portion 10 that is joined to each other at one end portion of the leg portions 9 and 9. . In the opening maintaining member 4, the leg portions 9 and 9 are detachably inserted into the leg insertion holes 8 from the side of the bag-like body 2.

  In use, for example, the tissue collection bag 1 is wound into a cylindrical shape with the opening maintaining member 4 or the seam portion 5 as an axis, and is stored in an outer tube (not shown) having an inner diameter of about 5 mm. Then, after the mantle tube is introduced into the body cavity from the incision hole, the mantle tube is pulled out from the mantle tube by a forceps inserted into the body cavity from another incision hole and deployed.

  As shown in FIG. 2, the tissue collection bag 1 pulled out from the mantle tube is plastically deformed by forceps (not shown) so that the leg portions 9, 9 of the opening maintaining member 4 are separated from each other at the center portion thereof. As a result, the opening 3 is opened. Once the leg portions 9 and 9 of the opening maintaining member 4 are plastically deformed, the plastic deformation is irreversible in a state where no external force is applied, and therefore the opening state of the opening 3 is easily maintained by the opening maintaining member 4. When the opening 3 is opened as described above, the tissue collection bag 1 accommodates the tissue cut out from the opening 3 into the bag 2.

  When closing the opening 3 of the tissue collection bag 1, as shown in FIG. 3, first, the leg portions 9, 9 of the opening maintaining member 4 are pulled out from the leg insertion hole 8 using forceps (not shown), Detach from the bag 2. Then, using another forceps (not shown), the grasping portion 7a of the closing string 7 is grasped, and the opening 3 is squeezed and closed by pulling the closing string 7, and the tissue collection bag 1 is removed outside the body. To do.

  The operation of pulling out the leg portions 9, 9 of the opening maintaining member 4 from the leg insertion hole 8 and detaching it from the bag-like body 2 is performed after the opening portion 3 is squeezed by pulling the closing string 7. May be. Further, when using the tissue collection bag 1, it is wound into a body cavity via a trocar inserted into an incision hole without being housed in the outer tube while being wound in a cylindrical shape as described above. May be introduced.

  By the way, in the tissue collection bag 1 shown in FIG. 1, after being introduced into the body cavity by any of the methods described above, the opening maintaining member 4 falls off in an unintended situation while preparing the opening of the opening 3. There is.

  Therefore, in the tissue collection bag 1, as shown in FIG. 4, the leg portion 9 is provided with an engagement portion 9a that engages with the leg insertion hole 8a and prevents it from coming off at the end opposite to the joint portion 10. It may be. The engaging portion 9 a is connected to the end portion of the leg portion 9 via the narrow width portion 9 b, and the maximum width is larger than the width of the leg portion 9. On the other hand, the leg insertion hole 8a is smaller than the other leg insertion holes 8, and the narrow width portion 9b can be inserted, but is formed in a size that prevents the engagement portion 9a from being engaged and retained. ing.

  The tissue collection bag 1 can prevent the opening maintaining member 4 from falling off while preparing the opening of the opening 3 by engaging the engaging portion 9a with the leg insertion hole 8a. On the other hand, when the opening 3 is closed, since the bag-like body 2 is made of a thin and flexible resin, the opening maintaining member 4 can be pulled out of the bag-like body 2 by inserting the engaging portion 9a into the leg insertion hole 8a. it can.

  The engaging portion 9a only needs to be configured to engage with the leg insertion hole 8 and be prevented from coming off. Even if the engaging portion 9a is connected to the end portion of the leg portion 9 without the narrow width portion 9b. Good. In this case, instead of the leg insertion hole 8a, the normal leg insertion hole 8 prevents the engaging portion 9a from coming off.

  In the tissue collection bag 1 of the present embodiment, the leg insertion hole 8 is arranged between the opening 3 and the string passage hole 6, but the leg insertion hole 8 is open to the string passage hole 6. It may be arranged along the line of the string passage hole 6 on the side opposite to the part 3. Further, instead of the leg insertion hole 8, as shown in FIG. 5, the end edge of the opening 3 is folded back and thermally welded to the bag-like body 2 by the seam portion 11. Alternatively, a tunnel-shaped insertion hole 12 having an inlet and an outlet may be formed, and the leg 9 may be inserted into the insertion hole 12.

  DESCRIPTION OF SYMBOLS 1 ... Tissue collection bag, 2 ... Bag-shaped body, 3 ... Opening part, 4 ... Opening maintenance member, 7 ... Closed string, 8, 8a ... Leg part penetration hole, 9 ... Leg part, 10 ... Joint part.

Claims (2)

A bag-like body made of a thin and flexible resin that accommodates tissue excised in endoscopic surgery, a plurality of string-through holes arranged on the edge of the opening of the bag-like body, and the string-through holes In a tissue collection bag that is inserted and has a closing string that allows the opening of the bag-like body to be opened and closed, accommodated in the bag-like body, removed from the body, and collected,
It has a pair of legs made of a plastically deformable material and a joint that joins at one end of the legs, and is detachably mounted along the opening, and is plastically deformed when opened. An opening maintaining member that maintains the open state ,
A plurality of leg insertion holes that are arranged along the opening and through which the legs of the opening maintaining member are detachably inserted;
Of the plurality of leg insertion holes, the leg insertion hole formed at the end opposite to the joint is formed smaller than the other leg insertion holes,
The leg portion is connected to an end portion on the opposite side to the joint portion via a narrow width portion, and can be inserted through the small leg insertion hole and engages with the leg insertion hole. A tissue collection bag comprising an engaging portion for preventing the removal . The tissue collection bag according to claim 1 , wherein the leg insertion hole is provided between the opening and the string passage hole.

Images