JP2724811B2 - Suction tube with suction needle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of medical instruments and relates to a technique of an apparatus for sucking a body fluid or the like.

[0002]

2. Description of the Related Art In the case of performing laparoscopic surgery with trocar puncture without incision surgery on the lower abdomen in particular, the removal of a tumor part of the affected part of the abdominal organ, such as a pustule, is observed with a cutting forceps while watching a TV monitor. It is common practice to use a suction needle in a suction device for laparoscopic surgery to suction a tumor part of a patient's pustules and to clean and disinfect the affected part after the operation. In this case, the suction device has the shape shown in FIG. 1. However, during the operation of removing the tumor part of the abscess in the intraperitoneal organ and aspirating the affected part, the pus of the tumor part is completely removed. Sufficient suction cannot be obtained in the process of sucking the cells and sucking so that there is no remaining suction. For this reason, there is a tendency that the work time for cleaning and the amount of disinfecting solution used for the affected area tend to increase, and it has been desired to improve the conventional device to obtain a greater effect.

[0003]

The conventional device punctures the internal part of the patient in contact with the affected part such as the tumorous part of the pulmonary vein in the operation of removing the part of the tumorous part such as the pustule in the patient. Although pus etc. is sucked, there is little problem if only the affected part is punctured and only one place is punctured, but the tip of the outer cylinder is made of metal during puncturing multiple places and sucking the pus etc. Since it is the surface of a cylinder, suction gaps are generated every time a part moves, and pus and the like from the affected area hang down. In addition, there is a tendency for gaps between the affected part to occur and pus etc. to droop, tend to increase the cleaning work time for the affected part, increase the amount of disinfectant used, etc., and the germs spread and transfer around the affected part There are fears, etc., eliminating those problems and eliminating postoperative worries When necessary, the operation of removing the tumorous part of the tumor from the patient is made easier, and the postoperative scatter of pathogenic bacteria and the suction of unnecessary tissue such as the tumorous part of the pus are ensured. It was an object of the invention to achieve the above.

[0004]

Means for Solving the Problems In order to solve the problems by improving the function of the conventional device by the above-mentioned problems, a two-stage tapered aperture having a tapered cutting edge portion on the inner needle is formed, and the cutting edge is the outer cylinder. A scale is provided at the terminal of the inner needle to indicate the amount exposed from the distal end portion, so that it is easy to check the amount of the inner needle puncturing the affected part, to easily adjust the puncturing condition, and to further adjust the cutting edge. The operation performance of puncture suction was improved by facilitating minute adjustment of the range of suction and making it easy to maintain and adjust the sustainability of suction by using a stepped-down aperture. The outer cylinder constitutes a flexible suction section through a connector at a tip portion of the outer cylinder, and a suction section,
The connector part, outer cylinder support part, etc. are easily disassembled to form a structure that can be reused (easily re-sterilized), and the suction part is made of a flexible material to eliminate the contact gap with the affected part. ,
The above-mentioned configuration is used to solve the problem.

[0005]

According to the above-mentioned structure, in the operation of removing a tumor part of the tumor such as a pustule, the patient is punctured with the inner needle having a built-in tapered shape in contact with the diseased part such as the tumor part and the suction force. The stability is obtained, the puncture depth can be easily adjusted with the scale, and the operation performance of sucking pus and the like is improved, and the suction part of the outer cylinder makes it difficult for a gap with the affected part to occur. Since the risk of emergence is improved, the cleaning time for the affected area can be reduced, the amount of disinfecting solution used can be reduced, and the pathogenic bacteria can be dispersed around the affected area.

[0006]

FIG. 1 is an external view of a conventional example.
A metal outer cylinder 1 is provided with a suction adapter 2 and a packing 3, and an inner needle 4 to be punctured is placed inside the outer cylinder.
The needle base 4b and the cock 5 are connected to the end of the inner needle to constitute the conventional suction set 1 . When used, as described above, without incision operation on the lower abdomen, with trocar puncture, removal of tumor partial abscess etc. in the affected part of the abdominal organ is observed while watching a TV monitor for laparoscopic surgery. The tip 1a of the suction set 1 is applied to the affected part (not shown) to pierce the cutting edge 4a of the inner needle 4 into the affected part (not shown), and the suction device is connected to the connection port 5a of the cock 5. Suction negative pressure (not shown)
As a result, pus and the like in the affected area are removed by suction. Further, pus and the like leaked from the punctured diseased part leaked from the distal part 1a of the outer cylinder 1 due to the negative suction pressure (not shown) of the suction device connected to the connection port 2a of the suction adapter 2. Pus and the like are removed by suction.

FIG. 2 is a partial side sectional view of FIG. FIG. 1A shows a structure in which a suction adapter 2 and a packing 3 are provided on an outer cylinder 1. FIG. 2B shows a structure in which a needle base 4 a and a cock 5 are provided on the inner needle 4.

FIG. 3 is an external view of one embodiment of the present invention.
The outer tube 6 of the suction tube 6 with the suction needle has a suction portion 6 at its tip.
a connector 6b to which the connector 6a is connected, and an outer cylinder support 7 provided with a suction connection port 7a at the end of the outer cylinder 6, and a leakage prevention valve 8 is connected to the end of the outer cylinder support 7. To form the outer cylinder 6 to form the suction tube 6 with a suction needle. The inner needle 9 of the suction tube 6 with the suction needle has a two-step narrowed shape 9b toward the cutting edge 9a and is provided so as to be able to protrude and retract from the outside of the suction portion 6g of the outer cylinder 6. A scale 9c indicating the length at which the cutting edge 9a is exposed is provided at the portion, and a needle base 9d is provided to connect to a connection port 10a connected to a suction device (not shown) and a chemical solution injection device (not shown). The inner needle 9 is formed by connecting the three-way cock 10 provided with the connection port 10b. If you use
As described above, without performing an incision operation on the lower abdomen, performing laparoscopic puncture with a trocar puncture while watching a TV monitor for laparoscopic surgery. (FIG. 6), the suction portion 6a of the outer tube 6 of the suction tube 6 with the suction needle is applied to the blade 9a of the inner needle 9, and the affected part (FIG. 6).
The puncture depth is checked while checking the puncture depth and puncture length of the cutting edge 9a of the inner needle with the scale 9c, and the suction port of the suction device connected to the connection port 10a of the three-way cock 10 is checked. The pressure (not shown) aspirates and removes pus and the like in the affected area. The suction portion 6a, which is formed of a flexible material, is sufficiently tight when it comes into contact with the trunk, so that the affected part has a large suction effect of pus and the like to prevent leakage. Further, pus and the like leaking from the punctured affected part are caused by the suction negative pressure (not shown) of the suction device connected to the suction connection port 7a of the outer cylinder supporting part 7 from the suction part 6a of the outer cylinder 6. The leaked pus is removed by suction. The leak prevention valve 8 prevents the outside air from being sucked by the above-mentioned negative suction pressure, and also prevents leakage of the sucked pus and the like. Since the inner needle 9 has a tapered two-step drawn shape 9b and the cutting edge 9a is further thinned, the inner needle 9 comes into contact with a membrane 11 such as a tumor abscess of an affected part (FIG. 6) of the patient and punctures the cutting edge 9a of the inner needle 9. When the inside pus 12 is sucked as described above, fine and precise suction operation can be performed continuously and stably.

FIG. 4 is a partial side sectional view of the outer cylinder 6 and the inner needle 9 of FIG. FIG. 5A shows the suction section 6 attached to the tip of the outer cylinder 6.
g with a connector 6h ((c) in FIG. 5) and an outer cylinder support portion 7 provided with a connection port 7a for suction at one end, and connected to a terminal portion of the outer cylinder support portion 7. A state where the leak prevention valve 8 is connected is shown. The figure (b) shows that the tip 9a of the inner needle 9 has a tapered two-step drawing shape 9b, and a scale 9c for checking the puncture depth of the tip 9a is provided on the side of the needle base 9d. Suction connection port 10a and connection port 1 for chemical liquid injection
The state where the three-way cock 10 having 0b is connected is shown.

FIG. 5 is a partial cross-sectional side view showing several embodiments for connecting the connector 6b to the distal end portion of the outer cylinder 6, which is a technique capable of efficiently performing the above-described suction operation.

FIG. 5A shows a connector 6d in which the distal end portion of the outer cylinder 6 forms a fixed portion 6c that is warped inward, and has a flexible suction portion and an integrated structure. Shows the structure of the suction part fixed by press-fitting

FIG. 5B shows a state in which a screw portion 6e is provided at the distal end of the outer cylinder 6, and is screwed with the screw portion 6e of the connector 6f, and the flexible suction portion 6a is fitted to the connector 6f. The structure of the sucked portion is shown.

FIG. 5 (c) shows a suction device in which a screw portion 6e is provided at the tip of the outer cylinder 6 and is screwed with the screw portion 6e of the connector 6f and formed into a flexible trumpet shape on the connector 6h. 6 shows a configuration of a suction portion fitted with the portion 6g.

FIG. 5D shows an extremely flexible suction portion 6i provided around the distal end of the flexible trumpet-shaped suction portion 6g, and the suction portion fitted with the suction portion 6g. The configuration of the part is shown.

FIG. 6 is an embodiment diagram of FIG .
A screw 6e is provided at the tip of the outer cylinder 6, and a connector 6f is provided.
And the connector 6h is fitted with a flexible trumpet-shaped suction portion 6g. The suction portion 6a is brought into contact with the pus 11 such as a tumor pustule of the affected part, and the inner needle 9 is Cutting edge 9
a to puncture a and aspirate the pus 12 inside as described above,
By the puncturing operation, as described above, the pus or the like 12 leaked from the outer peripheral portion of the cutting edge 9a of the punctured portion is drawn from the trumpet-shaped mouth of the suction portion 6g as described above. Is removed by suction pressure (not shown).

[0016]

As described above, the cutting edge portion of the inner needle is formed into a tapered two-stage tapered end, and the cutting edge is punctured into a membrane of a tumor, such as a tumor abscess, of the affected part to suction the pus. In this case, a very fine and precise suction operation can be performed, and a fine and precise puncture operation can be easily performed by a scale indicating the puncture depth of the cutting edge of the inner needle. And, as described above, the outer cylinder leaked from the outer peripheral portion of the pierced portion of the cutting edge 9a when the cutting edge was punctured into a membrane of a tumor abscess or the like in the affected part and the pus or the like was suctioned. Pus etc. are in contact with the membrane of tumor abscess etc. at the affected part by a flexible suction part, and are sufficiently suctioned and removed by suction negative pressure (not shown) from the suction connection port of the outer cylinder support part. Is done.

[0017]

[Brief description of the drawings]

FIG. 1 is an external view of a conventional example.

FIG. 2 is a partial side sectional view of FIG.

FIG. 3 is an external view of one embodiment of the present invention.

FIG. 4 is a partial side sectional view of the outer cylinder 6 and the inner needle 9 of FIG. 3;

FIG. 5A is a side sectional view of one embodiment of the configuration of the distal end portion of the outer cylinder 6 of FIG. 3; FIG. 2B is a side sectional view of one embodiment of the configuration of the distal end portion of the outer cylinder 6 in FIG. FIG. 3C is a side sectional view of one embodiment of the configuration of the distal end portion of the outer cylinder 6 of FIG. FIG. 4D is a side sectional view of one embodiment of the configuration of the distal end portion of the outer cylinder 6 in FIG.

FIG. 6 is a diagram showing the embodiment of FIG.

[Description of Signs] 1 Suction set 1 Outer cylinder 1a Tip 2 Suction adapter 2a Connection port 3 Packing 4 Inner needle 4a Blade tip 5 Cock 5a Connection port 6 Suction tube with suction needle 6 Outer cylinder 6a Suction unit 6b Connector 6c Fixing unit 6d Suction part integrated with connector part 6e Screw part 6f Connector 6g Trump-shaped suction part 6h Connector 6i Extremely flexible suction part 7 Outer cylinder support part 7a Suction connection port 8 Leak prevention valve 9 Inner needle 9a Blade tip 9b Two-step narrowed portion 9c Scale 9d Needle base 10 Three-way stopcock 10a Connection port 10b Connection port

Claims (5)

(57) [Claims] 1. A suction tube device having a dual structure comprising an outer tube serving as a suction tube and an inner needle serving as a suction needle, wherein the inner needle has a tapered two-stage tapered structure with a cutting edge portion thereof. A three-way cock for suction is provided at the base of the needle, and a scale indicating the amount of the blade edge exposed from the suction part of the outer cylinder is provided at a part close to the needle base to constitute the inner needle. A flexible suction portion is provided at a distal end portion thereof via a connector, and an outer cylinder support portion having a suction connection port protruding and provided at a terminal portion thereof and a leak prevention valve are provided to constitute the outer cylinder. A suction tube with a suction needle, comprising: an inner needle having a two-step narrowing portion and a scale; and an outer cylinder having a flexible suction portion. 2. The connector according to claim 1, wherein a front end portion of the outer tube forms a fixed portion that is warped inward, and a connector having a flexible suction portion and an integral structure is press-fitted and fixed to the fixed portion. A suction tube with a suction needle. 3. The suction needle according to claim 1, wherein a screw portion is provided at a distal end portion of the outer cylinder, the screw portion is screwed with the screw portion of the connector, and a flexible suction portion is fitted to the connector. With suction tube. 4. A suction tube with a suction needle according to claim 2, wherein the suction portion is formed in a trumpet shape. 5. A suction tube with a suction needle according to claim 2, wherein an extremely flexible suction portion is provided around the tip of the trumpet-shaped suction portion.