Auxiliary suction structure for cooling medium liquid

Abstract

The present invention relates to the technical field of wound drainage, and specifically provides an auxiliary suction structure for cooling medium liquid. An auxiliary suction structure for cooling medium liquid, wherein an inner sleeve is provided on the outer wall of a surgical blade head, the inner sleeve comprises an inner sleeve fixing part and an inner sleeve water storage part, the inner sleeve fixing part fits the outer peripheral surface of a knife rod assembly, and a water storage cavity is provided between the inner wall of the inner sleeve water storage part and the surgical blade head. The inner sleeve is sleeved on the outside of a plasma surgical blade to increase the suction range of the cooling medium liquid of the plasma surgical blade and enhance the suction effect of the plasma surgical blade; the inner sleeve and the surgical blade head form a water storage cavity, which enables the cooling medium liquid to stay temporarily on the muscle surface and near the surgical blade head, making it easier for the plasma surgical blade to absorb the cooling medium liquid and fully utilize the cooling effect of the cooling medium liquid, thereby reducing the volume of the cooling medium liquid and reducing the interference of the cooling medium liquid on the surgical process.

Description

Technical Field

[0001] The invention relates to the technical field of wound drainage, and in particular provides an auxiliary suction structure for cooling medium liquid. Background Art

[0002] Polyp ablation surgery using a plasma scalpel is an important surgery in the Department of Otolaryngology. Since the human ear, nose and throat are mostly soft tissues and sensory cells, high temperatures will destroy the functions of adjacent cell tissues, and the surgery needs to be controlled at low temperatures, that is, the protection of cooling medium liquid is required during the surgery. At the same time, since this type of surgery is mostly tissue surgery, it is generally performed in the patient's mouth. If the medium liquid cannot be sucked out of the patient's mouth by negative pressure in time, the patient will be at risk of suffocation. At present, the coolable blade head and negative pressure suction tube assembly are designed separately, and their purpose is only to use the cooling medium liquid to contact the plasma electrode to achieve cutting. During the operation of the chief surgeon, the surgical nurse needs to manually handle the excess liquid with an additional negative pressure suction head in time to control the volume of the flowing liquid, which seriously affects the continuity of the operation and the timeliness and surgical field of the attending physician, resulting in a decrease in surgical efficiency. Prior art CN110464452A is a plasma surgical electrode for otolaryngology, comprising a ceramic head, a working electrode, a tubular loop electrode, a water suction pipe and a water outlet guide; a reflux hole is provided in the ceramic head, a working electrode is provided on one end of the ceramic head, and the other end of the ceramic head is fixedly connected to the end of the handle through the tubular loop electrode; the water suction pipe is sleeved in the tubular loop electrode, and a water inlet channel is formed between the water suction pipe and the tubular loop electrode, and the end of the water suction pipe is connected to the ceramic head and communicated with the reflux hole; at least one water outlet hole is provided at a position close to the end of the tubular loop electrode, and the water outlet guide is sealed at the position of the tubular loop electrode corresponding to the water outlet hole, and a water injection channel is formed between the water outlet guide and the tubular loop electrode. Prior art Under normal circumstances, the cooling medium liquid flowing out is much larger than the esophageal digestion amount, and there is a problem that a large amount of liquid cannot be discharged in time, resulting in the cooling medium liquid remaining in the patient's mouth. The inventor believes that there is a large room for improvement in the prior art. Summary of the invention

[0003] The purpose of the present invention is to expand the liquid suction range of the suction head and enhance the suction effect. The plasma scalpel can absorb excess cooling medium liquid and reduce the risk of suffocation of patients. Secondly, the plasma scalpel realizes the local water storage cooling function. The cooling medium liquid can stay on the muscle surface and near the scalpel head for a short time, making full use of the cooling effect of the cooling medium liquid; the surgeon can independently complete the surgical operation and handle the excess cooling medium liquid, reduce the configuration of additional surgical medical staff, and improve the efficiency of the operation. To this end, the present invention provides an auxiliary suction structure for cooling medium liquid, including a plasma scalpel and a negative pressure generating unit, the auxiliary suction structure includes an inner kit and an outer kit, the plasma scalpel includes a scalpel head and a shank assembly, the outer wall of the scalpel head is provided with an inner kit, the inner kit includes an inner kit fixing part and an inner kit water storage part, the inner kit fixing part fits the outer peripheral surface of the shank assembly, and a water storage cavity is provided between the inner wall of the inner kit water storage part and the scalpel head. The inner sleeve is sleeved on the outside of the plasma scalpel to increase the liquid absorption range of the cooling medium liquid of the plasma scalpel and enhance the liquid absorption effect of the plasma scalpel; the inner sleeve and the scalpel head form a water storage cavity, which can make the cooling medium liquid temporarily stay on the muscle surface and near the scalpel head, making it easy for the plasma scalpel to absorb the cooling medium liquid and fully utilize the cooling effect of the cooling medium liquid, thereby reducing the volume of the cooling medium liquid; the water storage cavity can restrict the spraying direction of the cooling medium liquid, reduce the spraying impact force of the cooling medium liquid, and reduce the stimulation of the cooling medium liquid on the muscles of the surgical area.

[0004] Preferably, the outer set comprises an outer set fixing part and an outer set negative pressure generating part, the outer set fixing part cooperates with the outer peripheral surface formed by the combination of the negative pressure suction tube and the knife bar assembly, a negative pressure cavity is provided between the outer wall of the inner set and the inner wall of the negative pressure generating part of the outer set, and the negative pressure cavity is connected to the water storage cavity at one end close to the surgical blade. The outer set is sleeved on the outside of the knife bar assembly to form a negative pressure cavity, which further increases the suction range of the cooling medium liquid of the plasma scalpel and enhances the suction effect of the plasma scalpel; the negative pressure cavity is connected to the negative pressure generating unit to form a cooling medium liquid suction auxiliary circuit, and the cooling medium liquid suction auxiliary circuit cooperates with the water suction hole of the knife head to expand the suction range of the cooling medium liquid, improve the suction rate of the cooling medium liquid, and reduce or even avoid the residual cooling medium liquid in the patient's mouth.

[0005] Preferably, the blade rod assembly is provided with a negative pressure suction tube of a negative pressure generating unit, and the end of the negative pressure cavity away from the surgical blade head is connected to the pipeline of the negative pressure suction tube. The negative pressure suction tube is used to connect the negative pressure cavity, so as to avoid the need to set a negative pressure generating unit on the plasma surgical knife, reduce the gravity of the plasma surgical knife, and the negative pressure suction tube can be connected to most types of negative pressure generating units, thereby improving the compatibility of the plasma surgical knife and the negative pressure generating unit.

[0006] Preferably, a negative pressure suction tube is provided at a tangent position of the knife bar assembly, and the negative pressure suction tube is parallel to the knife bar assembly, and the negative pressure suction tube is a hose. The negative pressure suction tube is tangent to and parallel to the knife bar assembly, which can reduce the influence of the suction force and suction force adjustment formed by the negative pressure generating unit on the plasma scalpel, and reduce the influence on the operating stability of the surgeon; the negative pressure suction tube is a hose, so that the negative pressure suction tube can bend and deform in the process of the surgeon moving the plasma scalpel, avoiding pulling the surgeon's operation and reducing the influence on the surgical process.

[0007] Preferably, a gap is provided between the inner sleeve fixing part and the front end of the negative pressure suction tube. The gap between the inner sleeve fixing part and the front end of the negative pressure suction tube can increase the local suction cross-sectional area, improve the suction of the cooling medium liquid suction auxiliary circuit, and improve the cooling medium liquid suction rate.

[0008] Preferably, the surgical blade head is provided with a surgical blade outlet hole, and the channel of the surgical blade outlet hole is connected to the water storage cavity. The cooling medium liquid of the surgical blade outlet hole accumulates and stays in the water storage cavity after contacting the muscle surface, which can fully utilize the cooling effect of the cooling medium liquid and facilitate the cooling medium liquid to be sucked out by the blade head water absorption hole and the negative pressure cavity.

[0009] Preferably, the surgical blade head and the blade rod assembly have an angle, the outer set negative pressure generating part includes an outer set blade rod matching part and an outer set blade head matching part, and the outer set blade rod matching part and the blade rod assembly are concentrically matched. The outer set blade rod matching part and the blade rod assembly are concentrically matched to facilitate the adjustment of the blade depth during surgery and the sealing effect when the cooling medium liquid is sucked out.

[0010] Preferably, the front end face of the inner set is parallel to the front end face of the outer set, and the distance H1 between the front end of the surgical blade head and the front end face of the inner set is greater than the distance H2 between the front end of the surgical blade head and the front end face of the outer set. Through the above arrangement, the front end face of the outer set is closer to the patient's muscle surface than the front end face of the inner set, and the front end face of the outer set and the front end face of the inner set form a step difference, which facilitates the cooling medium liquid in the water storage cavity to be sucked into the negative pressure cavity; the inner set is prevented from contacting the patient's muscle surface, stimulating the muscles in the surgical area, and keeping the muscles in the surgical area close to the surgical blade relaxed.

[0011] Preferably, the inner wall of the negative pressure generating part of the outer sleeve is provided with a guiding spiral structure, and the extending direction of the guiding spiral structure is the same as the extending direction of the negative pressure cavity. The guiding spiral structure is used to guide the flow of the cooling medium liquid, and the guiding spiral structure makes the cooling medium liquid form a rotating fluid during the suction process, which accelerates the flow speed of the cooling medium liquid and improves the suction speed of the cooling medium liquid; the guiding spiral structure can destroy the stable state of the cooling medium liquid suction, and avoid impurities in the cooling medium liquid after use from clogging the negative pressure cavity.

[0012] The present invention achieves the expansion of the suction range of the suction head and the enhanced suction effect. The plasma scalpel can absorb excess cooling medium liquid and reduce the risk of suffocation of patients; the plasma scalpel realizes the local water storage cooling function, and the cooling medium liquid can temporarily stay on the muscle surface and near the scalpel head, making full use of the cooling effect of the cooling medium liquid; the surgeon can independently complete the surgical operation and handle excess cooling medium liquid, reducing the configuration of additional surgical medical staff and improving the surgical efficiency, and has the following beneficial effects: the inner kit and the scalpel head form a water storage cavity, which can make the cooling medium liquid temporarily stay on the muscle surface and near the scalpel head, making it convenient for the plasma scalpel to absorb the cooling medium liquid And make full use of the cooling effect of the cooling medium liquid to reduce the volume of the cooling medium liquid; the negative pressure suction tube is tangent to and parallel to the knife rod assembly, which can reduce the suction force formed by the negative pressure generating unit and the suction force adjustment on the plasma scalpel, and reduce the impact on the operating stability of the surgeon; the negative pressure suction tube is a hose, so that the negative pressure suction tube can bend and deform in the process of the surgeon moving the plasma scalpel, avoiding pulling the surgeon's operation and reducing the impact on the surgical process; a guide groove is used to guide the flow of the cooling medium liquid, and multiple guide grooves allow the cooling medium liquid to form a rotating fluid during the suction process, thereby accelerating the flow speed of the cooling medium liquid and improving the suction speed of the cooling medium liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the implementation methods of the invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0014] Figure 1 It is a structural schematic diagram of the auxiliary suction structure of the plasma surgical knife of the present invention;

[0015] Figure 2 It is a schematic diagram of the structure of the surgical blade head of the present invention;

[0016] Figure 3 is a cross-sectional view of the inner sleeve of the present invention;

[0017] Figure 4 A cross-sectional view of an outer sleeve of Embodiment 1 of the present invention;

[0018] Figure 5 is a cross-sectional view of the position of the surgical blade head of the first embodiment of the present invention;

[0019] Figure 6 It is a cross-sectional view of the outer set of the second embodiment of the present invention;

[0020] Figure 7is a cross-sectional view of the position of the surgical blade head of the second embodiment of the present invention;

[0021] Figure 8 is a cross-sectional view of an inner sleeve according to a third embodiment of the present invention;

[0022] Fig. 9 A cross-sectional view of an outer set of Embodiment 3 of the present invention;

[0023] Fig.10 This is a cross-sectional view of the position of the surgical blade head in embodiment 3 of the present invention.

[0024] Explanation of the reference numerals: 1. the knife bar assembly; 2. the hose fixing part; 3. the handle; 4. the water inlet hose; 5. the power cord; 6. the negative pressure suction tube; 7. the auxiliary suction structure; 8. the surgical blade head; 9. the inner kit; 901. the inner kit fixing part; 902. the inner kit water storage part; 903. the inner kit connecting part; 10. the outer kit; 1001. the outer kit fixing part; 1002. the outer kit knife bar matching part; 1003. the outer kit knife head matching part; 1004. the guiding spiral structure; 1005. the outer kit connecting part; 11. the surgical blade liquid outlet hole; 12. the plasma electrode base; 13. the knife head water absorption hole; 14. the negative pressure suction connector; 15. the water storage cavity; 16. the negative pressure cavity. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Embodiment 1

[0027] Combination Figure 1 , Figure 2 and Figure 3As shown, this embodiment provides an auxiliary suction structure 7 for cooling medium liquid, including a surgical blade head 8, a blade rod assembly 1 and a negative pressure generating unit, the front end of the blade rod assembly 1 is provided with a plasma electrode base 12, the rear end of the blade rod assembly 1 is provided with a water inlet hose 4 and a power cord 5, the rear end of the water inlet hose 4 is connected to a cooling medium liquid water bag, and its front end is connected to the surgical blade head 8, the rear end of the power cord 5 is connected to a plasma power supply, and its front end is connected to the plasma electrode base 12, the outer side of the surgical blade head 8 is sleeved with an auxiliary suction structure 7, the auxiliary suction structure 7 includes an inner set 9 and an outer set 10, the plasma scalpel includes a surgical blade head 8 and a blade rod assembly 1, the outer wall of the surgical blade head 8 is provided with an inner set 9, the inner set 9 includes an inner set fixing portion 901 and an inner set water storage portion 902, the inner set fixing portion 901 is attached to the outer peripheral surface of the blade rod assembly 1, and a water storage cavity 15 is provided between the inner wall of the inner set water storage portion 902 and the surgical blade head 8. The inner set fixing portion 901 and the blade rod assembly 1 are glued into one body. The inner set 9 and the outer set 10 are disposable medical consumables, and the materials used are medical plastics that meet the requirements of the surgical environment, and in this embodiment, they are polycarbonate.

[0028] In actual use, the power cord 5 is connected to the medical supporting plasma power supply, the water inlet hose 4 is connected to the cooling medium liquid water bag, the negative pressure suction tube 6 is connected to the negative pressure suction connector 14, and finally connected to the negative pressure suction motor; the outer set 10 is sleeved on the outside of the negative pressure suction tube 6 and the knife rod assembly 1, and the outer set fixing part 1001 is fixed by a medical adhesive strip at the far end of the surgical blade 8; the inner set fixing part 901 is tightly plugged into the outer wall of the knife rod assembly 1. The cooling medium liquid is sprayed from the surgical knife liquid outlet 11, passes through the water storage cavity 15 to reach the patient's muscle surface, and is sucked out by the knife head water absorption hole 13 of the surgical blade 8, forming a cooling medium liquid suction main circuit. The cooling medium liquid is sprayed from the surgical knife liquid outlet 11, passes through the water storage cavity 15 to reach the patient's muscle surface and diffuses, and is sucked into the negative pressure suction tube 6 by the negative pressure cavity 16 between the negative pressure generating part of the outer set 10 and the inner set 9, forming a cooling medium liquid suction auxiliary circuit.

[0029] The inner sleeve 9 is sleeved on the outside of the plasma scalpel to increase the liquid absorption range of the cooling medium liquid of the plasma scalpel and enhance the liquid absorption effect of the plasma scalpel; the inner sleeve 9 and the surgical blade head 8 form a water storage cavity 15, which can make the cooling medium liquid temporarily stay on the muscle surface and near the surgical blade head 8, so that the plasma scalpel can absorb the cooling medium liquid and fully utilize the cooling effect of the cooling medium liquid, thereby reducing the volume of the cooling medium liquid; the water storage cavity can restrict the spraying direction of the cooling medium liquid, reduce the spraying impact force of the cooling medium liquid, and reduce the muscle stimulation of the cooling medium liquid on the surgical area; the surgeon can independently complete the surgical operation and handle the excess cooling medium liquid, thereby reducing the configuration of additional surgical medical staff and improving the surgical efficiency.

[0030] Combination Figure 4and Figure 5 As shown, the outer set 10 includes an outer set fixing part 1001 and an outer set negative pressure generating part. The outer set fixing part 1001 cooperates with the outer peripheral surface formed by the combination of the negative pressure suction tube 6 and the knife bar assembly 1. A negative pressure cavity 16 is provided between the outer wall of the inner set 9 and the inner wall of the outer set negative pressure generating part. The negative pressure cavity 16 is connected to the water storage cavity 15 at one end close to the surgical blade 8. In this embodiment, the outer set fixing part 1001 is fixed to the surface of the knife bar assembly 1 by a medical adhesive tape. The medical adhesive tape fixes the outer set fixing part 1001 at a distance from the distal end of the surgical blade 8, so as to facilitate the adjustment of the extension length of the surgical blade 8 from the negative pressure suction auxiliary structure. An outer sleeve 10 is sleeved on the outside of the knife rod assembly 1 to form a negative pressure cavity 16, which further increases the suction range of the cooling medium liquid of the plasma scalpel and enhances the suction effect of the plasma scalpel; the negative pressure cavity 16 is connected to the negative pressure generating unit to form a cooling medium liquid suction auxiliary circuit, and the cooling medium liquid suction auxiliary circuit cooperates with the knife head water absorption hole 13 to expand the suction range of the cooling medium liquid, improve the suction rate of the cooling medium liquid, and reduce or even avoid the residual cooling medium liquid in the patient's mouth.

[0031] like Figure 5 As shown, the negative pressure suction tube 6 of the negative pressure generating unit is provided outside the knife bar assembly 1, and the end of the negative pressure cavity 16 away from the surgical blade 8 is connected to the pipeline of the negative pressure suction tube 6. The negative pressure suction tube 6 of the negative pressure generating unit is provided at a tangent position of the knife bar assembly 1, and the negative pressure suction tube 6 is parallel to the knife bar assembly 1. The negative pressure suction tube 6 is a hose, and the hose fixing part 2 is used to connect the negative pressure suction tube 6 and the knife bar assembly 1 as a whole for partial fixation.

[0032] The negative pressure suction tube 6 is used to connect the negative pressure cavity 16, so as to avoid the need to set a negative pressure generating unit on the plasma scalpel, reduce the gravity of the plasma scalpel, and the negative pressure suction tube 6 can be connected to most types of negative pressure generating units, thereby improving the compatibility of the plasma scalpel with the negative pressure generating unit. The negative pressure suction tube 6 is tangent to and parallel to the knife rod assembly 1, which can reduce the influence of the suction force and suction force adjustment formed by the negative pressure generating unit on the plasma scalpel, and reduce the influence on the operating stability of the surgeon; the negative pressure suction tube 6 is a hose, so that the negative pressure suction tube 6 can bend and deform in the process of the surgeon moving the plasma scalpel, thereby avoiding pulling the surgeon's operation and reducing the influence on the surgical process.

[0033] like Figure 5 As shown, there is a gap B between the inner sleeve fixing portion 901 and the front end of the negative pressure suction tube 6. 1 ,B 1 The value is between 1 and 2 cm. In this embodiment, B 1 The gap between the inner set fixing portion 901 and the front end of the negative pressure suction tube 6 can increase the local suction cross-sectional area, improve the suction of the cooling medium liquid suction auxiliary circuit, and improve the cooling medium liquid suction rate.

[0034] Combination Figure 2 and Figure 5 As shown, the surgical blade head 8 is provided with a surgical blade outlet hole 11, and the channel of the surgical blade outlet hole 11 is connected to the water storage cavity 15. The cooling medium liquid of the surgical blade outlet hole 11 is accumulated and retained in the water storage cavity 15 after contacting the muscle surface, which can fully utilize the cooling effect of the cooling medium liquid and facilitate the cooling medium liquid to be sucked out by the blade head water absorption hole 13 and the negative pressure cavity 16.

[0035] like Figure 5 As shown, the surgical blade head 8 and the blade rod assembly 1 have an angle α, and the value of α is between 25 and 45°. In the present embodiment, α is 34°. The surgical blade liquid outlet 11 is located on the inner side of the angle between the surgical blade head 8 and the blade rod assembly 1, and the spraying direction of the cooling medium liquid is restricted to avoid splashing of the cooling medium liquid during the supply process. The negative pressure generating part of the outer set 10 includes an outer set blade rod matching part 1002 and an outer set blade head matching part 1003, and the outer set blade rod matching part 1002 and the blade rod assembly 1 are concentrically matched. The concentric matching of the outer set blade rod matching part 1002 and the blade rod assembly 1 facilitates the adjustment of the blade depth during surgery and the sealing effect when the cooling medium liquid is sucked out.

[0036] like Figure 5 As shown, the front end face of the inner set 9 is parallel to the front end face of the outer set 10, and the distance H1 between the front end of the surgical blade head 8 and the front end face of the inner set 9 is greater than the distance H2 between the front end of the surgical blade head 8 and the front end face of the outer set 10. Through the above arrangement, the front end face of the outer set 10 is closer to the patient's muscle surface than the front end face of the inner set 9, and the front end face of the outer set 10 and the front end face of the inner set 9 form a step difference, which facilitates the cooling medium liquid in the water storage cavity 15 to be sucked into the negative pressure cavity 16, avoiding the inner set from contacting the patient's muscle surface, stimulating the muscles in the surgical area, and keeping the muscles in the surgical area close to the surgical blade head 8 relaxed.

[0037] Embodiment 2

[0038] Combination Figure 6 and Figure 7As shown, the present embodiment is different from the first embodiment in that, in the present embodiment, the inner wall of the negative pressure generating part of the outer sleeve 10 is provided with a guide spiral structure 1004, and the extension direction of the guide spiral structure 1004 is the same as the extension direction of the negative pressure cavity 16. The guide spiral structure 1004 can be a structure such as an internal thread, an external thread, a guide groove, etc. that can change the flow direction of the liquid, so that the liquid rotates under the structure, and the flow speed of the liquid is accelerated. The guide spiral structure 1004 in the present embodiment is six guide grooves, and each guide groove is at an angle of 5° with the extension direction of the negative pressure cavity 16. The guide groove is used to guide the flow of the cooling medium liquid, and the multiple guide grooves and the angle between the guide groove and the extension direction of the negative pressure cavity 16 make the cooling medium liquid form a rotating fluid during the suction process, which can accelerate the flow speed of the cooling medium liquid and improve the suction speed of the cooling medium liquid; the guide spiral structure can destroy the stable state of the cooling medium liquid suction, and avoid the impurities in the cooling medium liquid after use from clogging the negative pressure cavity 16.

[0039] Embodiment 3

[0040] Combination Figure 8 and Fig. 9 As shown, the present embodiment is different from the first and second embodiments in that, in the present embodiment, the outer kit 10 and the inner kit 9 ​​are both semi-open designs, the inner kit 9 ​​is provided with a notch on the side away from the water outlet of the scalpel, and the inner kit 9 ​​is provided with an inner kit connecting portion 903 at one end close to the scalpel head 8, the outer kit 10 cooperates with the inner kit 9, the outer kit 10 is provided with a notch on the side away from the water outlet of the scalpel, and the outer kit connecting portion 1005 is provided at one end close to the scalpel head 8.

[0041] Through the above-mentioned arrangement, the surgeon can directly see the patient's muscle surface and the surgical blade 8 through the gap, and the gap can provide the surgeon with a wide surgical field of view; and the surgeon can observe the volume of the cooling medium liquid in the water storage cavity 15 through the gap, and judge whether the supply of the cooling medium liquid is insufficient or excessive, so as to avoid the volume of the residual cooling medium liquid being greater than the patient's esophageal absorption capacity, thereby reducing the risk of suffocation of the patient; the supply of the cooling medium liquid can be adjusted in time to avoid excessive cooling medium liquid blurring the surgical field of view, thereby ensuring the continuity of the surgical operation and shortening the operation time; the outer kit connection part 1005 cooperates with the outer kit blade head matching part 1003 to support the patient's muscle surface, fix the surgical area, and avoid the patient's muscles being stimulated and moved by the cooling medium liquid.

[0042] The present invention achieves the expansion of the suction range of the suction head and the enhanced suction effect. The plasma scalpel can absorb excess cooling medium liquid and reduce the risk of suffocation of patients; the plasma scalpel realizes the local water storage cooling function, and the cooling medium liquid can temporarily stay on the muscle surface and near the surgical blade head 8, making full use of the cooling effect of the cooling medium liquid; the surgeon can independently complete the surgical operation and handle excess cooling medium liquid, reducing the configuration of additional surgical medical staff and improving surgical efficiency, and has the following beneficial effects: the inner kit 9 ​​and the surgical blade head 8 form a water storage cavity 15, which can make the cooling medium liquid temporarily stay on the muscle surface and near the surgical blade head 8, making it convenient for the plasma scalpel to absorb the cooling medium Liquid and fully utilize the cooling effect of the cooling medium liquid to reduce the volume of the cooling medium liquid; the negative pressure suction tube 6 is tangent to and parallel to the knife rod assembly 1, which can reduce the suction force formed by the negative pressure generating unit and the suction force adjustment on the plasma scalpel, and reduce the impact on the operating stability of the surgeon; the negative pressure suction tube 6 is a hose, so that the negative pressure suction tube 6 can bend and deform during the surgeon's movement of the plasma scalpel, avoiding pulling the surgeon's operation and reducing the impact on the surgical process; a guide groove is used to guide the flow of the cooling medium liquid, and multiple guide grooves enable the cooling medium liquid to form a rotating fluid during the suction process, thereby accelerating the flow rate of the cooling medium liquid and improving the suction rate of the cooling medium liquid.

[0043] The above embodiments and / or implementation methods are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any form. Any technical personnel in this field may make slight changes to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention.

Claims

1. A cooling medium liquid auxiliary suction structure, comprising a plasma scalpel and a negative pressure generating unit, characterized in that: The auxiliary suction structure (7) comprises an inner sleeve (9) and an outer sleeve (10); the plasma scalpel comprises a scalpel head (8) and a shank assembly (1); the inner sleeve (9) is provided on the outer wall of the scalpel head (8); the inner sleeve (9) comprises an inner sleeve fixing portion (901) and an inner sleeve water storage portion (902); the inner sleeve fixing portion (901) is in contact with the outer peripheral surface of the shank assembly (1); a water storage cavity (15) is provided between the inner wall of the inner sleeve water storage portion (902) and the scalpel head (8); The outer set (10) comprises an outer set fixing portion (1001) and an outer set negative pressure generating portion, the knife rod assembly (1) is provided with a negative pressure suction tube (6) of a negative pressure generating unit, the outer set fixing portion (1001) cooperates with the outer peripheral surface formed by the combination of the negative pressure suction tube (6) and the knife rod assembly (1), a negative pressure cavity (16) is provided between the outer wall of the inner set (9) and the inner wall of the outer set negative pressure generating portion, and the negative pressure cavity (16) is connected to the water storage cavity (15) at one end close to the surgical blade head (8); The surgical blade head (8) is provided with a surgical blade liquid outlet (11), and the channel of the surgical blade liquid outlet (11) is connected to the water storage cavity (15); The inner sleeve (9) is provided with a notch on a side away from the scalpel liquid outlet (11), and an inner sleeve connecting portion (903) is provided on an end of the inner sleeve (9) close to the scalpel head (8). The outer sleeve (10) cooperates with the inner sleeve (9), and the outer sleeve (10) is provided with a notch on a side away from the scalpel liquid outlet (11), and an outer sleeve connecting portion (1005) is provided on an end of the outer sleeve (10) close to the scalpel head (8).

2. A cooling medium liquid auxiliary suction structure according to claim 1, characterized in that: One end of the negative pressure cavity (16) away from the surgical blade head (8) is connected to a pipeline of the negative pressure suction tube (6).

3. A cooling medium liquid auxiliary suction structure according to claim 2, characterized in that: A negative pressure suction tube (6) of the negative pressure generating unit is provided at a tangential position of the knife bar assembly (1); the negative pressure suction tube (6) is parallel to the knife bar assembly (1); and the negative pressure suction tube (6) is a hose.

4. A cooling medium liquid auxiliary suction structure according to claim 1, characterized in that: A gap B1 is provided between the inner sleeve fixing portion (901) and the front end of the negative pressure suction tube (6).

5. A cooling medium liquid auxiliary suction structure according to claim 1, characterized in that: The surgical knife head (8) and the knife rod assembly (1) have an angle α, the outer sleeve negative pressure generating portion comprises an outer sleeve knife rod matching portion (1002) and an outer sleeve fixed knife head matching portion (1003), and the outer sleeve knife rod matching portion (1002) and the knife rod assembly (1) are concentrically matched.

6. A cooling medium liquid auxiliary suction structure according to claim 1, characterized in that: The front end surface of the inner set (9) is parallel to the front end surface of the outer set (10), and the distance H1 between the front end of the surgical blade head (8) and the front end surface of the inner set (9) is greater than the distance H2 between the front end of the surgical blade head (8) and the front end surface of the outer set (10).

7. A cooling medium liquid auxiliary suction structure according to claim 1, characterized in that: The inner wall of the negative pressure generating portion of the outer sleeve is provided with a guiding spiral structure (1004), and the extending direction of the guiding spiral structure (1004) is the same as the extending direction of the negative pressure cavity (16).

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