CN113577406A

CN113577406A - Negative pressure treatment device for vagina and manufacturing method thereof

Info

Publication number: CN113577406A
Application number: CN202110875455.8A
Authority: CN
Inventors: 万绵水
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-11-02
Also published as: WO2023005082A1

Abstract

The invention discloses a negative pressure treatment device for vagina and a manufacturing method thereof, wherein the device comprises a drainage strip, a drainage tube and a supply tube; two ends of the drainage strip are respectively covered with a layer of impermeable film; the drainage tube is characterized in that the near end of the drainage tube is provided with a drainage section, the drainage section is inserted into the drainage strip from the far end for drainage of the drainage strip, and the far end of the drainage tube is externally connected with a negative pressure device; the proximal end of the supply tube is provided with a drug administration section, the drug administration section is inserted into the drainage strip from the distal end for administering drugs to the drainage strip, and the distal end of the supply tube is externally connected with a drug administration device. The invention solves the problems of uneven drainage and drug delivery and influence on the treatment effect when negative pressure drainage is adopted to treat vaginal laceration in the prior art.

Description

Negative pressure treatment device for vagina and manufacturing method thereof

Technical Field

The invention relates to the technical field of medical instruments, in particular to a negative pressure treatment device for vagina and a manufacturing method thereof.

Background

Vaginal laceration refers to laceration injury of perineum and vagina caused by various reasons. Vaginal lacerations are frequently seen in two cases: one is due to obstetric labor and the other is due to trauma and other causes. Vaginal laceration caused by vaginal delivery in obstetrical department is more common, can occur during natural delivery, and can also be damage caused by operation of some instruments during delivery, and the delivery is a main cause of vulva and vaginal trauma; poor vaginal development, rough sexual intercourse, lacerated wound of the vaginal orifice and vagina; other site trauma such as pelvic trauma may also affect the bladder, urethra, vagina or vulva.

After the vulva trauma operation, the wound is often packed under pressure, the vagina gauze is packed, the patient often complains of pain, the pain is relieved according to the medical advice, the situation that whether the patient bleeds again or not is closely observed after the vagina gauze is taken out or the vulva packing is loosened, if yes, the patient needs to be actively treated, and the vulva is kept clean and dry.

Generally, wounds from wounds, whether traumatic, surgical or otherwise, are wounds on the surface of the body, and in this type of wound, after dressing and treatment, the wound does not heal immediately, but rather, it needs to undergo necrosis, exudation, and healing period. The traditional method is to use medical supplies such as cotton yarn to wrap the wound, the wound wrapped can resist bacterial infection to a certain extent, but the environment with weak air permeability is not beneficial to wound repair, and metabolites and secretions of the wound cannot be drained and removed in time in the repair process, but the wound repair is affected, so that the wound recovery period is prolonged.

The traditional intravaginal oil yarn strip is packed, and the wound can not be infused with drugs or flushed with liquid, which is a defect in the existing wound repair technology.

Vacuum Sealing Drainage (VSD) refers to a technique originally created by WFleischman doctors in Germany in the early 90 s of the 20 th century and used for soft tissue wound surfaces, and the technique utilizes medical foam to wrap a multi-side-hole Drainage tube and then place the Drainage tube into a Drainage area, and then utilizes a permeable adhesive film to seal the Drainage area so as to isolate the Drainage area from the outside, and a high negative pressure source is connected to form a high-efficiency Drainage system.

In recent years, the application of negative pressure closed drainage in vaginal fissure is more and more extensive, and in the treatment process, drainage or drug delivery can be carried out through the drainage strip, however, in the prior art, liquid can not only pass in and out from the peripheral surface of the drainage strip, but also pass in and out from the two ends of the drainage strip, so that drainage and drug delivery are uneven, and the treatment effect is influenced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a negative pressure treatment device for vagina, which aims to solve the problems of uneven drainage and drug delivery and influence on treatment effect when the vagina is cracked by adopting negative pressure drainage in the prior art.

In one aspect, the present invention provides a negative pressure therapy device for the vagina, comprising:

the drainage strip is covered with a layer of impermeable film at each of two ends;

the drainage tube is provided with a drainage section at the near end, the drainage section is inserted into the drainage strip from the far end for drainage of the drainage strip, and the far end of the drainage tube is externally connected with a negative pressure device;

the proximal end of the supply tube is provided with a drug administration section, the drug administration section is inserted into the drainage strip from the distal end for administering drugs to the drainage strip, and the distal end of the supply tube is externally connected with a drug administration device.

Furthermore, a blind hole is formed at the far end of the drainage strip along the axial direction of the drainage strip, the drainage section of the drainage tube is inserted into the blind hole, and a plurality of drainage holes are formed in the tube wall of the drainage section of the drainage tube;

the drainage tube is characterized by further comprising a supporting tube, wherein the supporting tube is coaxially arranged in the drainage section of the drainage tube, the far end of the supporting tube penetrates out of the tube wall of the drainage tube, a plurality of connecting tubes with radial outer ends inclining far are arranged between the drainage section of the drainage tube and the supporting tube, and two ends of each connecting tube penetrate through the tube walls of the drainage tube and the supporting tube respectively;

the supply pipe penetrates through the support pipe, the far end of the supply pipe penetrates out of the far end of the support pipe, a plurality of shunt pipes with radial outer ends inclining far are arranged outside the pipe wall of the supply pipe, conical tips are arranged at the tail ends of the shunt pipes, and the shunt pipes penetrate into the connecting pipes in a one-to-one correspondence mode.

Furthermore, a first joint is arranged at the far end of the supporting tube, a first external thread is arranged outside the first joint, a second joint is arranged outside the supply tube and close to the first joint, a second external thread is arranged outside the second joint, and the rotating directions of the first external thread and the second external thread are opposite;

the adjusting nut is sleeved outside the first connector and the second connector and is in threaded fit with the first external thread and the second external thread respectively.

Further, drainage tube, stay tube and connecting pipe adopt the integrative injection moulding of silica gel, supply line and shunt tubes adopt the integrative injection moulding of silica gel.

Further, one side of the connecting pipe facing to the near end is provided with a conical surface.

Furthermore, the drainage tube also comprises a soft rubber plug body, wherein the soft rubber plug body comprises a sleeve and a baffle ring which is integrally connected with the outer end of the sleeve, the sleeve is sleeved outside the drainage tube and simultaneously penetrates through the waterproof membrane at the far end of the drainage strip and is inserted into the drainage strip, and the baffle ring is tightly attached to the outer end of the waterproof membrane.

Furthermore, the soft rubber plug body is made of silica gel.

Further, the drainage strip is made of polyvinyl alcohol foam sponge.

In another aspect, the present invention provides a method for manufacturing a negative pressure therapy apparatus for vagina, comprising a drainage strip manufacturing step, a drainage tube-support tube-supply tube manufacturing step and an assembling step;

the manufacturing steps of the drainage strip are as follows: coating a release agent on the inner wall of a rectangular mould, coating a layer of silica gel coating on the inner walls of two side edges of the rectangular mould, wherein the distance between the two side edges coated with the silica gel coating is equal to the design length of the drainage strip, then pouring the reaction liquid into the rectangular mould for curing to obtain a sponge block, and simultaneously curing the silica gel to form impermeable films on the two sides of the sponge block; after demolding, repeatedly washing the sponge block until the pH value is 4-5; cutting the cleaned sponge block into drainage strips; processing a blind hole at one end of the drainage strip by adopting a sponge punching device;

the manufacturing steps of the drainage tube, the supporting tube and the supply tube are as follows: integrally molding a drainage tube, a supporting tube and a connecting tube; integrally injection molding a supply pipe and a shunt pipe; inserting injection-molded supply pipes into the support pipes, and inserting the shunt pipes into the connecting pipes in a one-to-one correspondence manner;

the assembling steps are as follows: sleeving a soft rubber plug body outside the assembled drainage tube, support tube and supply tube; penetrating a drainage tube, a support tube and a supply tube into a blind hole of the formed drainage strip; pressing the sleeve of the soft rubber plug body between the drainage tube and the inner wall of the blind hole until the baffle ring of the soft rubber plug body abuts against the outside of the impervious film at the end of the drainage strip; the feeding tube is pulled towards the far end, so that the feeding tube and the supporting tube move relatively until the shunt tube outside the feeding tube passes through the drainage tube and is inserted into the drainage strip.

Further, the sponge perforating device includes:

the punching mechanism comprises a guide rail, a motor base, a motor and a drill rod, wherein the guide rail is fixed on a base, the motor base is slidably mounted on the guide rail, the motor is fixed on the motor base, and the drill rod is coaxially fixed at the output end of the motor;

the positioning mechanism comprises a base and an upper cover, the base is fixed on the base, the upper cover covers the base, a limiting cavity used for fixing the drainage strip is formed between the base and the upper cover, and a yielding hole through which the drill rod penetrates is formed in the side wall of one end of the limiting cavity.

The invention has the beneficial effects that: when this application is treated vaginal trauma, the drainage strip is arranged in the vagina, because the both ends of drainage strip are sealed through impervious membrane, liquid can not pass through from the both ends of drainage strip, during the drainage, the external negative pressure device of drainage tube, negative pressure device passes through the drainage tube to the drainage strip drainage, form the negative pressure in the drainage strip, the liquid that the vaginal wall surface of a wound oozes can only go through the global drainage of drainage strip, thereby ensure that the drainage is even, when dosing, the external device of dosing of supply tube, the device of dosing is administered to the drainage strip through the supply tube, can deliver the vaginal wall through global of drainage strip in the liquid medicine of supply, thereby ensure to administer evenly. Therefore, the problem that drainage and administration are uneven and the treatment effect is affected when negative pressure drainage is adopted to treat vaginal laceration in the prior art is solved.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is an internal cross-sectional view of a drainage strip in accordance with an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a connecting tube according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a rectangular mold according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a molded sponge block according to an embodiment of the invention;

fig. 6 is a schematic structural view of a sponge punching device according to an embodiment of the present invention.

In the figure, 100-drainage strips; 110-water impermeable membrane; 120-blind hole; 200-a drainage tube; 210-a drainage segment; 220-drainage holes; 300-a supply tube; 310-administration segment; 320-a shunt tube; 330-a second joint; 400-supporting the tube; 410-connecting pipe; 411-a conical surface; 420-a first joint; 500-adjusting the screw cap; 600-soft rubber plug body; 610-a sleeve; 620-stop ring; 700-a rectangular mold; 710-silica gel coating; 800-sponge block; 900-sponge perforating device; 910-a hole punch mechanism; 911-guide rail; 912-motor base; 913-a motor; 914-a drill pipe; 920-a positioning mechanism; 921-base; 922-upper cover; 923-a limit cavity; 924-abdicating hole.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

As shown in fig. 1 to 3, an embodiment of the present invention provides a negative pressure treatment device for vagina, which includes a drainage strip 100, a drainage tube 200, and a supply tube 300.

Both ends of the drainage strip 100 are covered with a water impermeable film 110 to seal both ends of the drainage strip 100. In this embodiment, the drainage strip 100 is preferably made of a polyvinyl alcohol foam sponge, and other drainage carrier materials can be used. The impermeable membrane 110 may be silica gel or other impermeable membrane material attached to the ends of the drainage strip 100.

The proximal end of the drainage tube 200 is provided with a drainage section 210, the drainage section 210 is inserted into the drainage strip 100 from the distal end for draining the drainage strip 100, and the distal end of the drainage tube 200 is externally connected with a negative pressure device (not shown in the figure).

The proximal end of feeding tube 300 has an administration section 310, and the administration section 310 is inserted into strip 100 from the distal end for administering the drug to strip 100, and the distal end of feeding tube 300 is externally connected with a drug administration device (not shown).

When this application is treated vaginal trauma, drainage strip 100 is arranged in the vagina, because drainage strip 100's both ends are sealed through impervious membrane 110, liquid can not pass through from drainage strip 100's both ends, during the drainage, the external negative pressure device of drainage tube 200, negative pressure device passes through drainage tube 200 to drainage strip 100 drainage, form the negative pressure in drainage strip 100, the liquid that the vaginal wall surface of a wound oozes can only be through drainage strip 100 global drainage and go out, thereby ensure that the drainage is even, when dosing, the external device of dosing of feeding tube 300, the device of dosing is administered to drainage strip 100 through feeding tube 300, can carry the vaginal wall through drainage strip 100 global in the liquid medicine of supply, thereby ensure that it is even to administer. Therefore, the problem that drainage and administration are uneven and the treatment effect is affected when negative pressure drainage is adopted to treat vaginal laceration in the prior art is solved.

In a preferred embodiment, the distal end of the drainage strip 100 is provided with a blind hole 120 along the axial direction thereof, the drainage section 210 of the drainage tube 200 is inserted into the blind hole 120, and the wall of the drainage section 210 of the drainage tube 200 is provided with a plurality of drainage holes 220. The negative pressure therapy device further comprises a support tube 400, the support tube 400 is coaxially arranged in the drainage section 210 of the drainage tube 200, the distal end of the support tube 400 penetrates out of the tube wall of the drainage tube 200, a plurality of connecting tubes 410 with radial outer ends inclining to the distal side are arranged between the drainage section 210 of the drainage tube 200 and the support tube 400, and two ends of the connecting tubes 410 respectively penetrate through the tube walls of the drainage tube 200 and the support tube 400. The supply tube 300 is arranged in the support tube 400 in a penetrating manner, the distal end of the supply tube 300 penetrates out of the distal end of the support tube 400, a plurality of shunt tubes 320 with radial outer ends inclining towards the far side are arranged outside the tube wall of the supply tube 300, conical tips are arranged at the tail ends of the shunt tubes 320, the shunt tubes 320 penetrate into the connecting tubes 410 in a one-to-one correspondence manner, and in the embodiment, the supply tube 300 and the shunt tubes 320 are integrally formed by silica gel injection molding.

By adopting the structure, when the drainage tube 200 is inserted into the blind hole 120 of the drainage strip 100, the tail ends of the shunt tubes 320 outside the supply tube 300 are contracted in the connecting tube 410, after the drainage tube 200 is inserted, the supply tube 300 is pulled to the far end, the supply tube 300 and the support tube 400 move relatively, so that the tail ends of the shunt tubes 320 outside the supply tube 300 penetrate out of the connecting tube 410 and are inserted into the drainage strip 100, and finally the supply tube 300 and the support tube 400 are locked, thereby completing the assembly, being convenient and rapid to assemble, and the depth of the shunt tubes 320 inserted into the drainage strip 100 is adjustable, and the assembled drainage tube 200 is not easy to be pulled out from the blind hole 120 of the drainage strip 100.

The administration section 310 of the feeding tube 300 is coaxially arranged in the drainage section 210 of the drainage tube 200, during administration, the supplied liquid medicine is dispersed through the shunt tubes 320 distributed on the periphery of the administration section into the drainage strip 100 and is supplied to the vaginal wall, during drainage, the liquid exuded from the surface of the vaginal wall is directly sucked through the drainage holes 220 on the wall of the administration section 310, so that only one pipeline needs to be led out from the drainage strip 100, administration and drainage can be realized, the open pores of the impermeable membrane 110 at the far end of the drainage strip 100 can be reduced, and the sealing of the far end of the drainage strip 100 is facilitated.

Preferably, the distal end of the support tube 400 is provided with a first joint 420, a first external thread is arranged outside the first joint 420, a second joint 330 is arranged outside the supply tube 300 and close to the first joint 420, a second external thread is arranged outside the second joint 330, and the rotation directions of the first external thread and the second external thread are opposite; the negative pressure therapy device further comprises an adjusting nut 500, wherein the adjusting nut 500 is sleeved outside the first connector 420 and the second connector 330 and is in threaded fit with the first external thread and the second external thread respectively. Because the first external threads on the first connector 420 and the second external threads on the second connector 330 are opposite in direction, when the adjusting nut 500 is screwed, the first connector 420 and the second connector 330 move relatively, and the supply tube 300 and the support tube 400 are pulled to move relatively, so that the ends of the shunt tubes 320 can be pulled out of or retracted into the connection tube 410.

Preferably, the proximal side of the connection tube 410 is provided with a tapered surface 411, so that the sucked clot can be cut by the tapered surface 411 of the connection tube 410 during drainage, thereby preventing the sucked clot from depositing on the proximal side of the connection tube 410 and causing blockage.

Preferably, the negative pressure therapy device further comprises a soft rubber plug body 600, the soft rubber plug body 600 comprises a sleeve 610 and a baffle ring 620 integrally connected to the outside of the far end of the sleeve 610, the sleeve 610 is sleeved outside the drainage tube 200 and simultaneously penetrates through the watertight film 110 at the far end of the drainage strip 100 and is inserted into the drainage strip 100, the baffle ring 620 is tightly attached to the outside of the watertight film 110 at the far end, and the soft rubber plug body 600 is preferably made of silica gel. By arranging the soft rubber plug body 600, the sealing property between the drainage tube 200 and the waterproof film 110 at the far end of the drainage strip 100 can be improved.

As shown in fig. 1 to 6, the embodiment of the present invention further provides a manufacturing method of a negative pressure treatment device for vagina, which is used for manufacturing the negative pressure treatment device for vagina, and comprises a drainage strip 100 manufacturing step, a drainage tube 200-support tube 400-supply tube 300 manufacturing step and an assembling step.

The manufacturing steps of the drainage strip 100 are as follows: coating a release agent on the inner wall of a rectangular mould 700, coating a layer of silica gel coating 710 (shown in figure 4) on the inner wall of two side edges of the rectangular mould 700, wherein the distance between the two side edges coated with the silica gel coating 710 is equal to the designed length of the drainage strip 100, then pouring the reaction liquid into the rectangular mould 700 for curing to obtain a sponge block 800, and simultaneously curing the silica gel on two sides of the sponge block 800 to form the impermeable membrane 110 (shown in figure 5); after demolding, repeatedly washing the sponge block 800 until the pH value is 4-5; cutting the cleaned sponge block 800 into the drainage strips 100; a blind hole 120 is processed at one end of the drainage strip 100 by a sponge perforating device 900.

The preparation method of the reaction solution comprises a dissolving step and a synthesis reaction, and specifically comprises the following steps:

dissolving: weighing raw materials of polyvinyl alcohol and carboxymethyl chitosan according to the prescription amount, adding a proper amount of purified water, placing the mixture into a jacketed kettle, stirring and heating the mixture, controlling the temperature to be between 90 and 100 ℃, and stopping heating when the polyvinyl alcohol and the carboxymethyl chitosan are completely dissolved into a clear solution.

And (3) synthesis reaction: and (3) moving the polyvinyl alcohol-carboxymethyl chitosan mixed solution into a stirring pot according to the prescription amount, starting stirring, adding a sulfuric acid solution when the solution is cooled to room temperature, stirring for 10-15 minutes, adding a formaldehyde solution into the reaction solution, and stirring for 30-40 min.

The sponge punching device 900 specifically includes a punching mechanism 910 and a positioning mechanism 920. The hole punching mechanism 910 comprises a guide rail 911, a motor base 912, a motor 913 and a drill rod 914, wherein the guide rail 911 is fixed on a base, the motor base 912 is slidably mounted on the guide rail 911, the motor 913 is fixed on the motor base 912, and the drill rod 914 is coaxially fixed at the output end of the motor 913. The positioning mechanism 920 comprises a base 921 and an upper cover 922, the base 921 is fixed on the base, the upper cover 922 covers the base 921, a limiting cavity 923 used for fixing the drainage strip 100 is formed between the base 921 and the upper cover 922, and a yielding hole 924 through which the common drill rod 914 passes is formed in the side wall of one end of the limiting cavity 923. During punching, in spacing chamber 923 is arranged in to drainage strip 100, motor 913 drive drilling rod 914 rotates, then promotes motor cabinet 912 and slides along guide rail 911, and drainage strip 100 is gone into through the hole 924 of stepping down to drilling to drainage strip 100.

The steps of manufacturing the drainage tube 200, the support tube 400 and the supply tube 300 are as follows: integrally injection-molding the drainage tube 200, the support tube 400 and the connection tube 410; integrally injection-molding the supply pipe 300 and the shunt pipe 320; the injection-molded supply tube 300 is inserted into the support tube 400, and the shunt tubes 320 are inserted into the connection tubes 410 in a one-to-one correspondence.

The assembling steps are as follows: a soft rubber plug body 600 is sleeved outside the assembled drainage tube 200, support tube 400 and supply tube 300; penetrating the drainage tube 200, the support tube 400 and the supply tube 300 into the blind hole 120 of the formed drainage strip 100; pressing the sleeve 610 of the soft rubber plug 600 between the drainage tube 200 and the inner wall of the blind hole 120 until the baffle ring 620 of the soft rubber plug 600 abuts against the outside of the waterproof membrane 110 at the end of the drainage strip 100; pulling the feeding tube 300 distally causes relative movement of the feeding tube 300 and the support tube 400 until the shunt 320 outside of the feeding tube 300 exits the drain tube 200 and is inserted into the drainage strip 100.

The manufacturing method at least has the following advantages:

(1) the drainage strip 100, the drainage tube 200, the support tube 400 and the supply tube 300 are manufactured separately and then assembled together after the manufacture is finished, so that the manufacturing efficiency is high;

(2) silica gel coating 710 is scribbled through the both sides limit at rectangular die 700, and reaction liquid is once only pour, just can form silica gel waterproofing membrane 110 in the both sides of sponge piece 800, cuts processing to sponge piece 800 again, can obtain a plurality of both ends and have the drainage strip 100 of waterproofing membrane 110, at last cut fashioned drainage strip 100 punch again can, drainage strip 100's manufacturing efficiency is high, and is with low costs.

(3) The drainage tube 200, the support tube 400, the supply tube 300 and the drainage strip 100 are assembled together in the above manner, and the assembly is convenient and rapid.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A negative pressure therapy device for use in the vagina, comprising:

2. The negative pressure treatment device for the vagina according to claim 1, wherein a blind hole is formed at the distal end of the drainage strip along the axial direction of the drainage strip, the drainage section of the drainage tube is inserted into the blind hole, and a plurality of drainage holes are formed in the wall of the drainage section of the drainage tube;

3. The negative pressure therapy device for vagina according to claim 2, wherein the distal end of the supporting tube is provided with a first connector, a first external thread is arranged outside the first connector, a second connector is arranged outside the supply tube and close to the first connector, a second external thread is arranged outside the second connector, and the rotation directions of the first external thread and the second external thread are opposite;

4. The negative pressure therapy device for vagina according to claim 2, wherein said drainage tube, support tube and connection tube are integrally injection molded with silicone, and said supply tube and shunt tube are integrally injection molded with silicone.

5. The negative pressure therapy device for the vagina according to claim 2, wherein a side of the connection tube facing the proximal end is provided with a tapered surface.

6. The negative pressure therapy device for the vagina according to claim 2, further comprising a soft rubber plug body, wherein the soft rubber plug body comprises a sleeve and a baffle ring integrally connected to the outside of the distal end of the sleeve, the sleeve is sleeved outside the drainage tube and simultaneously penetrates through the waterproof membrane at the distal end of the drainage strip and is inserted into the drainage strip, and the baffle ring is tightly attached to the outside of the waterproof membrane at the distal end.

7. The negative pressure therapy device for the vagina according to claim 6, wherein the soft rubber plug body is made of silica gel.

8. The negative pressure therapy device for the vagina of claim 1, wherein the drainage strip is a polyvinyl alcohol foam sponge.

9. A manufacturing method of a negative pressure therapy apparatus for vagina for manufacturing the negative pressure therapy apparatus for vagina of claim 6, comprising a drainage strip manufacturing step, a drainage tube-support tube-supply tube manufacturing step and an assembling step;

10. The method of manufacturing a negative pressure therapy device for the vagina according to claim 9, wherein the sponge punching device comprises: