Minimally invasive negative pressure drainage device for plastic and aesthetic surgery

Abstract

The invention relates to the technical field of drainage apparatuses, in particular to a minimally invasive negative pressure drainage apparatus for plastic and aesthetic surgery, which comprises a base, a negative pressure extraction mechanism is arranged at the upper end of the base, and one end of the negative pressure extraction mechanism is fixedly connected with a first one-way valve and a second one-way valve respectively; the end, away from the negative pressure extraction mechanism, of the first one-way valve is fixedly connected with a drainage hose, and the end, away from the negative pressure extraction mechanism, of the second one-way valve is fixedly connected with an L-shaped connecting pipe. When one storage mechanism is filled with liquid, the two through holes in the upper side of the other empty storage mechanism are in a communicated state by rotating the switching mechanism, and meanwhile, the two through holes in the upper side of the storage mechanism filled with the liquid are blocked by the switching mechanism, so that the two through holes in the upper side and the lower side are in a non-communicated state; at the moment, the extracted liquid can enter a new storage mechanism to be stored, and when the storage mechanism filled with the liquid is detached, the extracted liquid cannot flow out from the position.

Description

Technical Field

[0001] The present invention relates to the technical field of drainage devices, in particular to a minimally invasive negative pressure drainage device for cosmetic and plastic surgery. Background Art

[0002] A negative pressure drainage bottle is a device used in the medical field. It creates and maintains a negative pressure environment to effectively drain exudate, blood, secretions, etc. from wounds, surgical sites or body cavities into a collection bottle, thereby purifying the wound, reducing the risk of infection and promoting wound healing.

[0003] For example, the Chinese patent with the announcement number CN118924973A discloses a minimally invasive negative pressure drainage device for cosmetic surgery, including a suction head, a backwash component, which is installed at the other end of the suction head, a negative pressure component, which is installed on one side of the backwash component, a liquid collection component, which is installed on the outside of the negative pressure component, a negative pressure tube, which is installed on one side of the backwash component, and a suction and discharge component, which is installed in the inner cavity of the negative pressure tube; the minimally invasive negative pressure drainage device for cosmetic surgery drives a piston to reciprocate in the inner cavity of the negative pressure tube through a translational drive member.

[0004] However, the above scheme has the following shortcomings: in the above patent, the piston is driven to move in the inner cavity of the negative pressure tube by a translational driving member, so that the blocking plate 1 is separated from the blocking ring 1, thereby allowing the material in the high-pressure cavity to be discharged, so that the patient's body fluids, blood and fine tissues are sucked into the negative pressure cavity of the negative pressure tube, and finally discharged into the liquid storage bottle for storage. However, when the amount of the patient's body fluids, blood and fine tissues absorbed at one time is large, so that the liquid storage bottle is full, the operator needs to replace the liquid storage bottle at this time. During the process of replacing the liquid storage bottle, the operator needs to shut down the equipment to prevent the liquid in the equipment from dripping into the external environment. The operation is relatively cumbersome. For this reason, we have launched a minimally invasive negative pressure drainage device for cosmetic plastic surgery. Summary of the invention

[0005] The purpose of the present invention is to provide a minimally invasive negative pressure drain for cosmetic plastic surgery to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A minimally invasive negative pressure drain for cosmetic plastic surgery, comprising a base, a negative pressure extraction mechanism is provided at the upper end of the base, one end of the negative pressure extraction mechanism is respectively fixedly connected to a first one-way valve and a second one-way valve, one end of the first one-way valve away from the negative pressure extraction mechanism is fixedly connected to a drainage hose, and one end of the second one-way valve away from the negative pressure extraction mechanism is fixedly connected to an L-shaped connecting pipe, liquid is drawn into the drainage hose through the negative pressure extraction mechanism, and then guided into the L-shaped connecting pipe by the negative pressure extraction mechanism;

[0008] The lower end of the base is fixedly connected to a connecting seat, a cavity is formed in the connecting seat, the lower end of the L-shaped connecting pipe passes through the base and extends into the cavity, a conversion mechanism is provided in the connecting seat, and a plurality of through holes are provided on the upper and lower sides of the conversion mechanism, the through holes are opened in the connecting seat, and the through holes on the upper and lower sides are connected to each other through the conversion of the conversion mechanism;

[0009] A plurality of storage mechanisms are provided at the lower end of the connecting seat, and the storage mechanisms are used to store the extracted liquid. When one storage mechanism is full of liquid, the liquid entering the cavity is transferred to another storage mechanism by rotating the conversion mechanism. A plurality of exhaust holes are provided in the connecting seat, and one end of the exhaust hole is connected to the cavity, and the other end is connected to the external environment.

[0010] The negative pressure extraction mechanism includes a negative pressure box, in which a piston plate is movably connected, one end of the piston plate is fixedly connected to an L-shaped connecting rod, the L-shaped connecting rod extends into the external environment away from the end of the piston plate and is movably connected to a guide wheel, and the first one-way valve and the second one-way valve are both fixedly connected to the negative pressure box.

[0011] The guide wheel is slidably connected in a T-shaped slot, the T-shaped slot is opened at the lower end of the elliptical plate, the lower end of the elliptical plate is fixedly connected to the output end of the connecting motor, and the connecting motor is fixedly installed at the upper end of the negative pressure box.

[0012] The conversion mechanism includes a toothed disc, a connecting through hole is opened in the toothed disc, the toothed disc is movably connected in a connecting seat, a gear is movably connected in the connecting seat, the gear is meshed with the toothed disc, and one side of the gear extends into the external environment.

[0013] A plurality of limiting holes are provided at the upper end of the gear, a T-shaped limiting rod is provided on the upper side of the gear, the lower end of the T-shaped limiting rod is arranged in an arc shape, the upper end of the T-shaped limiting rod is slidably connected in a sliding cavity, the sliding cavity is arranged in a connecting seat, a reset spring is fixedly connected in the sliding cavity, and the lower end of the reset spring is fixedly connected to the T-shaped limiting rod.

[0014] The storage mechanism includes an externally threaded connecting ring, which is fixedly connected to the lower end of the connecting seat, a supporting ring is fixedly connected to the inner side of the externally threaded connecting ring, a connecting ring is installed inside the externally threaded connecting ring, the connecting ring is fixedly sleeved on the outer side of the storage bag, an internally threaded ring is sleeved on the outer side of the storage bag, and the internally threaded ring is screwed to the outer side of the externally threaded connecting ring.

[0015] A plurality of plastic support rings are fixedly connected inside the connecting ring, the inner side of the plastic support ring is fixedly connected to the storage bag, an elastic ring is fixedly connected inside the storage bag, a cutting ring is fixedly connected to the upper end of the internal threaded ring, a plurality of positioning holes are provided starting from the upper end of the connecting ring, a positioning rod is clamped in the positioning hole, and the positioning rod is fixedly connected to the external threaded connecting ring.

[0016] Compared with the prior art, the beneficial effect of the present invention is that when a storage mechanism is filled with liquid during operation, the two through holes on the upper side of another empty storage mechanism are connected by rotating the conversion mechanism, and at the same time, the two through holes on the upper side of the storage mechanism filled with liquid are blocked by the conversion mechanism, so that the two through holes on the upper and lower sides are not connected. At this time, the extracted liquid will enter the new storage mechanism for storage. When the storage mechanism filled with liquid is dismantled, the extracted liquid will not flow out from this position, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the connecting seat of the present invention;

[0020] Figure 4 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the connection relationship between the external thread connecting ring and the storage bag of the present invention.

[0022] In the figure: 1. negative pressure box; 2. piston plate; 3. L-shaped connecting rod; 4. positioning rod; 5. guide wheel; 6. elliptical plate; 7. connecting motor; 8. T-slot; 9. first one-way valve; 10. drainage hose; 11. second one-way valve; 12. L-shaped connecting pipe; 13. cavity; 14. base; 15. connecting seat; 16. internal thread ring; 17. storage bag; 18. gear; 19. positioning hole; 20. limit hole; 21. T-shaped limit rod; 22. reset spring; 23. sliding cavity; 24. toothed disc; 25. connecting ring; 26. external thread connecting ring; 27. support ring; 28. through hole; 29. ​​exhaust hole; 30. connecting through hole; 31. elastic ring; 32. cutting ring; 33. plastic support ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-5 , the present invention provides a technical solution:

[0025] Embodiment 1:

[0026] A minimally invasive negative pressure drain for cosmetic plastic surgery, comprising a base 14, a negative pressure extraction mechanism is arranged at the upper end of the base 14, one end of the negative pressure extraction mechanism is respectively fixedly connected with a first one-way valve 9 and a second one-way valve 11, the first one-way valve 9 is fixedly connected with a drainage hose 10 at one end away from the negative pressure extraction mechanism, the first one-way valve 9 can allow liquid in the drainage hose 10 to enter the negative pressure extraction mechanism, but not the liquid in the negative pressure extraction mechanism to enter the drainage hose 10, the second one-way valve 11 is fixedly connected with an L-shaped connecting pipe 12 at one end away from the negative pressure extraction mechanism, the second one-way valve 11 can allow liquid in the negative pressure extraction mechanism to enter the L-shaped connecting pipe 12, but not the liquid in the L-shaped connecting pipe 12 to enter the negative pressure extraction mechanism, the liquid is drawn into the drainage hose 10 by the negative pressure extraction mechanism, and then guided into the L-shaped connecting pipe 12 by the negative pressure extraction mechanism;

[0027] The lower end of the base 14 is fixedly connected with a connecting seat 15, and a cavity 13 is formed in the connecting seat 15. The lower end of the L-shaped connecting tube 12 passes through the base 14 and extends into the cavity 13. The liquid is drawn into the drainage hose 10 by the negative pressure extraction mechanism, and then guided into the L-shaped connecting tube 12 by the negative pressure extraction mechanism. The liquid entering the L-shaped connecting tube 12 will enter the cavity 13. A conversion mechanism is provided in the connecting seat 15. A plurality of through holes 28 are provided on the upper and lower sides of the conversion mechanism. The through holes 28 are opened in the connecting seat 15. The number of the plurality of through holes 28 is equal to the plurality of storage mechanisms provided at the lower end of the connecting seat 15. The through holes 28 on the upper and lower sides are connected to each other through the conversion of the conversion mechanism.

[0028] A plurality of storage mechanisms are provided at the lower end of the connecting seat 15, and the storage mechanisms are used to store the extracted liquid. When one storage mechanism is full of liquid, the liquid entering the cavity 13 is transferred to another storage mechanism by rotating the conversion mechanism. A plurality of exhaust holes 29 are provided in the connecting seat 15, and one end of the exhaust hole 29 is connected to the cavity 13, and the other end is connected to the external environment.

[0029] Embodiment 2:

[0030] On the basis of Example 1, in order to enable the patient's body fluids, blood and fine tissues to be extracted, the negative pressure extraction mechanism includes a negative pressure box 1, a piston plate 2 is movably connected in the negative pressure box 1, one end of the piston plate 2 is fixedly connected to an L-shaped connecting rod 3, the L-shaped connecting rod 3 extends into the external environment away from the end of the piston plate 2, and is movably connected to a guide wheel 5, a first one-way valve 9 and a second one-way valve 11 are both fixedly connected to the negative pressure box 1, the guide wheel 5 is slidably connected to a T-slot 8, the T-slot 8 is opened at the lower end of an elliptical plate 6, and the lower end of the elliptical plate 6 is fixedly connected to the output of the connecting motor 7 The connecting motor 7 is fixedly installed on the upper end of the negative pressure box 1. When the connecting motor 7 is turned on, the elliptical plate 6 starts to rotate. Since the guide wheel 5 movably connected to one end of the L-shaped connecting rod 3 is slidably connected to the T-shaped slot 8, during the rotation of the elliptical plate 6, the guide wheel 5 moves along the T-shaped slot 8, so that the L-shaped connecting rod 3 moves back and forth. The movement of the L-shaped connecting rod 3 drives the piston plate 2 to move. When the piston plate 2 moves to the left, the patient's body fluids, blood and fine tissues will be sucked into the drainage hose 10 and enter the negative pressure box 1 through the first one-way valve 9;

[0031] The conversion mechanism includes a toothed disc 24, a connecting through hole 30 is provided in the toothed disc 24, the toothed disc 24 is movably connected to the connecting seat 15, a gear 18 is movably connected in the connecting seat 15, the gear 18 is meshed with the toothed disc 24, one side of the gear 18 extends into the external environment, a plurality of limiting holes 20 are provided at the upper end of the gear 18, a T-shaped limiting rod 21 is provided on the upper side of the gear 18, the lower end of the T-shaped limiting rod 21 is arranged in an arc shape, the upper end of the T-shaped limiting rod 21 is slidably connected to the sliding cavity 23, the sliding cavity 23 is provided in the connecting seat 15, a reset spring 22 is fixedly connected in the sliding cavity 23, and the reset spring 22 is lower The end is fixedly connected with the T-shaped limiting rod 21, and the rotating gear 18 drives the toothed disc 24 to rotate. During the rotation of the gear 18, the T-shaped limiting rod 21 engaged in the limiting hole 20 will bounce upward and disengage from the limiting hole 20. When the T-shaped limiting rod 21 moves to the position of another limiting hole 20, under the elastic force of the reset spring 22, the T-shaped limiting rod 21 is engaged with the limiting hole 20. At this time, the connecting through hole 30 also moves to the upper end of another storage bag 17 and is connected with the through hole 28 at this position, and the liquid will re-enter the storage bag 17 for storage;

[0032] The storage mechanism includes an external threaded connection ring 26, which is fixedly connected to the lower end of the connection seat 15, and a support ring 27 is fixedly connected to the inner side of the external threaded connection ring 26. A connection ring 25 is installed in the external threaded connection ring 26, and the connection ring 25 is fixedly sleeved on the outer side of the storage bag 17. An internal threaded ring 16 is sleeved on the outer side of the storage bag 17, and the internal threaded ring 16 is screwed on the outer side of the external threaded connection ring 26. The upper end of the new storage bag 17 is installed in the external threaded connection ring 26. During installation, ensure that the positioning rod 4 is snapped into the positioning hole 19, and the internal threaded ring 16 is sleeved on the outer side of the storage bag 17 and connected to the external threaded connection ring 26. When rotating the internal threaded ring 16, the internal threaded ring 16 is screwed on the outer side of the storage bag 17. During the process of cutting the threaded ring 16, the cutting ring 32 will cut several plastic support rings 33. Several plastic support rings 33 are fixedly connected in the connecting ring 25. The inner side of the plastic support ring 33 is fixedly connected to the storage bag 17. The storage bag 17 is fixedly connected with an elastic ring 31. The upper end of the internal threaded ring 16 is fixedly connected to the cutting ring 32. Several positioning holes 19 are provided at the upper end of the connecting ring 25. The positioning holes 19 are clamped with positioning rods 4. The positioning rods 4 are fixedly connected to the external threaded connecting ring 26 and are clamped in the positioning holes 19 through the positioning rods 4. When the cutting ring 32 cuts the plastic support ring 33, the connecting ring 25 will not rotate with it.

[0033] Working principle: when in use, turn on the connecting motor 7 to drive the elliptical plate 6 to start rotating. Since the guide wheel 5 movably connected to one end of the L-shaped connecting rod 3 is slidably connected to the T-shaped slot 8, during the rotation of the elliptical plate 6, the guide wheel 5 will move along the T-shaped slot 8, so that the L-shaped connecting rod 3 moves back and forth. The movement of the L-shaped connecting rod 3 drives the piston plate 2 to move. When the piston plate 2 moves to the left, the patient's body fluids, blood and fine tissues will be sucked into the drainage hose 10 and enter the negative pressure box 1 through the first one-way valve 9. When the piston plate 2 moves to the right, the liquid in the negative pressure box 1 will enter the L-shaped connecting pipe 12 through the second one-way valve 11, and the liquid entering the L-shaped connecting pipe 12 will enter the cavity 13.

[0034] The liquid entering the cavity 13 will pass through the through hole 28 and the connecting through hole 30 and enter the storage bag 17 for storage. When one storage bag 17 is full, the rotating gear 18 drives the toothed disc 24 to rotate. During the rotation of the gear 18, the T-shaped limiting rod 21 engaged in the limiting hole 20 will bounce upward and disengage from the limiting hole 20. When the T-shaped limiting rod 21 moves to the position of another limiting hole 20, under the elastic force of the reset spring 22, the T-shaped limiting rod 21 is engaged in the limiting hole 20. At this time, the connecting through hole 30 also moves to the upper end of another storage bag 17 and is connected to the through hole 28 at this position, and the liquid will re-enter the storage bag 17 for storage.

[0035] The internal threaded ring 16 is rotated to separate it from the surface of the external threaded connecting ring 26, and the connecting ring 25 is taken out from the external threaded connecting ring 26. When the support ring 27 leaves the storage bag 17, the bag mouth of the storage bag 17 is tightened under the elastic force of the elastic ring 31 to prevent the liquid in the storage bag 17 from spilling out. The upper end of the new storage bag 17 is installed into the external threaded connecting ring 26. During installation, ensure that the positioning rod 4 is snapped into the positioning hole 19, and the internal threaded ring 16 is sleeved on the outside of the storage bag 17 and connected to the external threaded connecting ring 26. During the rotation of the internal threaded ring 16, the cutting ring 32 will cut several plastic support rings 33, and under the support of the support ring 27, the elastic ring 31 will not tighten inward. At this time, the installation of the new storage bag 17 is completed.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A minimally invasive negative pressure drainage device for cosmetic surgery, comprising a base, characterized in that: A negative pressure extraction mechanism is provided at the upper end of the base, one end of the negative pressure extraction mechanism is fixedly connected to a first one-way valve and a second one-way valve, one end of the first one-way valve away from the negative pressure extraction mechanism is fixedly connected to a drainage hose, and one end of the second one-way valve away from the negative pressure extraction mechanism is fixedly connected to an L-shaped connecting pipe, and liquid is drawn into the drainage hose through the negative pressure extraction mechanism, and then guided into the L-shaped connecting pipe by the negative pressure extraction mechanism; The lower end of the base is fixedly connected to a connecting seat, a cavity is formed in the connecting seat, the lower end of the L-shaped connecting pipe passes through the base and extends into the cavity, a conversion mechanism is provided in the connecting seat, and a plurality of through holes are provided on the upper and lower sides of the conversion mechanism, the through holes are opened in the connecting seat, and the through holes on the upper and lower sides are connected to each other through the conversion of the conversion mechanism; A plurality of storage mechanisms are provided at the lower end of the connecting seat, and the storage mechanisms are used to store the extracted liquid. When one storage mechanism is full of liquid, the liquid entering the cavity is transferred to another storage mechanism by rotating the conversion mechanism. A plurality of exhaust holes are provided in the connecting seat, and one end of the exhaust hole is connected to the cavity, and the other end is connected to the external environment.

2. A minimally invasive negative pressure drainage device for cosmetic surgery according to claim 1, characterized in that: The negative pressure extraction mechanism includes a negative pressure box, in which a piston plate is movably connected, one end of the piston plate is fixedly connected to an L-shaped connecting rod, the L-shaped connecting rod extends into the external environment away from the end of the piston plate and is movably connected to a guide wheel, and the first one-way valve and the second one-way valve are both fixedly connected to the negative pressure box.

3. A minimally invasive negative pressure drainage device for cosmetic surgery according to claim 2, characterized in that: The guide wheel is slidably connected in a T-shaped slot, the T-shaped slot is opened at the lower end of the elliptical plate, the lower end of the elliptical plate is fixedly connected to the output end of the connecting motor, and the connecting motor is fixedly installed at the upper end of the negative pressure box.

4. The minimally invasive negative pressure drainage device for cosmetic and plastic surgery according to claim 1, characterized in that: The conversion mechanism includes a toothed disc, a connecting through hole is opened in the toothed disc, the toothed disc is movably connected in a connecting seat, a gear is movably connected in the connecting seat, the gear is meshed with the toothed disc, and one side of the gear extends into the external environment.

5. The minimally invasive negative pressure drainage device for cosmetic surgery according to claim 5, characterized in that: A plurality of limiting holes are provided at the upper end of the gear, a T-shaped limiting rod is provided on the upper side of the gear, the lower end of the T-shaped limiting rod is arranged in an arc shape, the upper end of the T-shaped limiting rod is slidably connected in a sliding cavity, the sliding cavity is arranged in a connecting seat, a reset spring is fixedly connected in the sliding cavity, and the lower end of the reset spring is fixedly connected to the T-shaped limiting rod.

6. The minimally invasive negative pressure drainage device for cosmetic surgery according to claim 1, characterized in that: The storage mechanism includes an externally threaded connecting ring, which is fixedly connected to the lower end of the connecting seat, a supporting ring is fixedly connected to the inner side of the externally threaded connecting ring, a connecting ring is installed inside the externally threaded connecting ring, the connecting ring is fixedly sleeved on the outer side of the storage bag, an internally threaded ring is sleeved on the outer side of the storage bag, and the internally threaded ring is screwed to the outer side of the externally threaded connecting ring.

7. A minimally invasive negative pressure drainage device for cosmetic plastic surgery according to claim 6, characterized in that: A plurality of plastic support rings are fixedly connected inside the connecting ring, the inner side of the plastic support ring is fixedly connected to the storage bag, an elastic ring is fixedly connected inside the storage bag, a cutting ring is fixedly connected to the upper end of the internal threaded ring, a plurality of positioning holes are provided starting from the upper end of the connecting ring, a positioning rod is clamped in the positioning hole, and the positioning rod is fixedly connected to the external threaded connecting ring.

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