Mammary gland perfusion hemostatic plasma knife

The plasma knife for breast irrigation hemostasis utilizes plasma coagulation and irrigation suction functions to solve the problems of bleeding and long-term compression after traditional minimally invasive breast surgery, achieving rapid hemostasis and improved safety.

CN224584840UActive Publication Date: 2026-08-04ANHUI VANWAY MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI VANWAY MEDICAL TECH CO LTD
Filing Date
2025-09-16
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Traditional minimally invasive breast surgery followed by pressure bandaging for hemostasis carries the risk of oozing and hematoma, and long-term compression may lead to pain, skin allergies, and changes in breast shape, making it particularly unsuitable for patients with poor coagulation function.

Method used

The breast irrigation hemostasis plasma knife uses plasma generated by the plasma knife head to coagulate blood. Combined with the irrigation channel and the suction channel, it can achieve rapid hemostasis and irrigation, and shorten the coagulation time.

Benefits of technology

It improves the safety and efficiency of the surgery, reduces the risk of postoperative hematoma, shortens the pressure bandaging time, is applicable to a wider range of people, and is easy to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a plasma scalpel for breast irrigation and hemostasis, relating to the field of clinical medical surgical instruments. The plasma scalpel includes a scalpel assembly and a scalpel head disposed at the end of the scalpel assembly; both the scalpel assembly and the scalpel head are also equipped with insulating heads; the scalpel head has a water outlet hole, and the outer peripheral wall of the scalpel assembly near the scalpel head end has several negative pressure holes; the scalpel assembly has an irrigation channel and a suction channel respectively connecting the water outlet hole and the negative pressure holes; the irrigation channel and the suction channel are respectively connected to an irrigation pump and a negative pressure suction device. This utility model utilizes a plasma scalpel head to generate plasma during hemostasis, achieving a thorough hemostasis effect and shortening the clotting time; furthermore, the scalpel head has irrigation and suction functions, facilitating the infusion and removal of irrigation fluid during hemostasis.
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Description

Technical Field

[0001] This utility model belongs to the field of clinical medical surgical instrument technology, and in particular relates to a plasma knife for breast irrigation and hemostasis. Background Technology

[0002] Minimally invasive breast surgery has been widely used in clinical practice due to its unique advantages, becoming an important method for the diagnosis and treatment of breast diseases. Currently, minimally invasive breast surgery is used for procedures such as benign breast tumor removal, breast hyperplasia removal, and cosmetic removal. Post-operatively, elastic bandages or special chest bandages are used for pressure bandaging to stop bleeding. However, existing techniques for hemostasis using traditional pressure bandaging after minimally invasive breast surgery have the following problems: Traditional pressure bandaging relies on external compression, but internal wound oozing may still occur, easily leading to hematoma formation; the pressure bandaging period is long, requiring 3-7 days, and in some patients up to 12 days, during which excessive pressure may cause pain, skin allergies, or even difficulty breathing; prolonged traditional pressure may cause temporary breast retraction or shape changes; and traditional pressure bandaging is not suitable for patients with poor coagulation function. Utility Model Content

[0003] The purpose of this invention is to provide a plasma knife for breast irrigation and hemostasis. The plasma knife head can generate plasma during coagulation to achieve a sufficient coagulation effect, shorten the coagulation time, and solve the problems mentioned in the prior art.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a plasma scalpel for breast irrigation and hemostasis, comprising a scalpel assembly and a scalpel head disposed at the end of the scalpel assembly; the scalpel assembly and the scalpel head are also provided with an insulating head; the scalpel head has a water outlet hole, and the outer peripheral wall of the scalpel assembly near the scalpel head end is provided with several negative pressure holes; the scalpel assembly is provided with an irrigation channel and a suction channel respectively connecting the water outlet hole and the negative pressure holes; the irrigation channel and the suction channel are respectively connected to an irrigation pump and a negative pressure suction device; the irrigation channel injects flushing fluid through the water outlet hole for cooling, and the suction channel simultaneously removes blood through the negative pressure holes, solving the problems of thermal damage and visual field obstruction; the scalpel head hemostasis shortens the clotting time.

[0006] Furthermore, the insulating head is a PTFE insulating head.

[0007] Furthermore, the tool holder assembly includes an inner steel tube and an outer steel tube nested together; both ends of the inner steel tube protrude from both ends of the outer steel tube; one end of the inner steel tube is welded to the tool head, and the other end is sealed to the inner wall of the outer steel tube through an end plate; one end of the outer steel tube is connected to the handle insulating shell, and the other end of the outer steel tube is connected to the insulating head; a suction flow channel is formed between the inner and outer steel tubes, and a flow channel is formed inside the inner steel tube; the negative pressure hole is opened on the outer steel tube to achieve physical isolation of the flow channels and eliminate the risk of cross-contamination of the flow channels.

[0008] Furthermore, the blade has a semi-ellipsoidal structure with a curved surface that conforms to breast tissue, which allows the generated plasma cloud to be more diffused and uniform during coagulation, thus achieving a thorough coagulation effect.

[0009] Furthermore, the outer walls of both the inner and outer steel tubes are coated with a PTFE insulation layer; the blade, inner steel tube, and outer steel tube are all made of medical-grade stainless steel.

[0010] Furthermore, an inlet pipe, an outlet pipe, and a power cord are provided through the end of the handle insulating shell; an opening is opened on the outer wall of the outer steel pipe near the end plate; the inlet pipe and the outlet pipe are respectively connected to the end of the inner steel pipe and the opening; the blade and the outer steel pipe are respectively connected to the positive and negative terminals of the power supply via the power cord.

[0011] This utility model has the following beneficial effects:

[0012] 1. This utility model uses a plasma blade that generates plasma during coagulation to achieve a thorough coagulation effect and shorten the coagulation time; the blade also has irrigation and suction functions, which facilitates the injection and removal of irrigation fluid during hemostasis.

[0013] 2. Using this novel plasma scalpel for surgery can improve surgical safety. The hemostatic effect of the plasma scalpel head for breast hemostasis is more precise and reliable. It directly seals small blood vessels and wounds through low-temperature plasma, resulting in more thorough hemostasis and significantly reducing the risk of postoperative hematoma. It also reduces the time required for postoperative pressure bandaging and accelerates recovery. It is suitable for a wider range of patients, including those with poor coagulation function, who can also undergo this surgery more safely. The scalpel head is used for coagulation after surgery and is easy to operate, improving surgical efficiency.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the plasma knife structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the mating structure of the tool holder assembly and the tool head of this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;

[0019] Figure 4 for Figure 2 The main view;

[0020] Figure 5 This is a cross-sectional view of the tool holder assembly and the tool head of this utility model.

[0021] Figure 6 This is a cross-sectional view of the cutter head of this utility model;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1-Cutter rod assembly, 2-Cutter head, 3-Insulating head, 10-Outer steel pipe, 11-Inner steel pipe, 21-Water outlet, 41-Water inlet pipe, 42-Water outlet pipe, 101-Negative pressure hole, 102-Opening. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Please see Figure 1-6As shown, this utility model is a plasma scalpel for breast irrigation and hemostasis, comprising a scalpel assembly 1 consisting of an inner steel tube 11 and an outer steel tube 10 nested together. A blade head 2 is welded to one end of the inner steel tube 11, and an insulating head 3 is provided between the ends of the blade head 2 and the outer steel tube 10. Several negative pressure holes 101 are provided on the outer peripheral wall of the outer steel tube 10 near the blade head 2. A water outlet hole 21 is provided on the blade head 2. A suction channel communicating with the negative pressure holes 101 is formed between the inner steel tube 11 and the outer steel tube 10, and an irrigation channel communicating with the water outlet hole 21 is formed inside the inner steel tube 11. The irrigation channel and the suction channel are respectively connected to an irrigation pump and a negative pressure pump. The pressure suction device is then used; subsequently, after the breast excision, the blade 2 and blade assembly 1 are inserted into the channel formed by the excision puncture. The entire process is best performed under real-time ultrasound guidance to ensure accurate positioning. Then, the irrigation pump is turned on to slowly inject irrigation fluid to flush the cavity, reduce the temperature of the working end, and minimize thermal damage to surrounding tissues. At the same time, the negative pressure suction device is turned on to immediately aspirate the irrigation fluid mixed with blood, and the blade is used to stop bleeding at the bleeding point. For diffuse bleeding, the blade can be moved slowly to perform scanning coagulation. After coagulation is completed, the irrigation and suction are turned on again to flush the cavity, and then the wound is pressure-bandaged.

[0027] like Figure 5 As shown in the diagram, the arrows indicate the flow direction of the flushing fluid and the flushing fluid mixed with blood.

[0028] In the above, the axial direction of the negative pressure hole 101 is perpendicular to the axial direction of the knife bar assembly 1, and the axial direction of the water outlet hole 21 is the same as the axial direction of the knife bar assembly 1. By utilizing the spatial distribution of the negative pressure hole 101 and the water outlet hole 21, the irrigation fluid is prevented from being directly sucked away before it can play its role, thus achieving efficient flushing.

[0029] Specifically, the two ends of the inner steel pipe 11 protrude from the two ends of the outer steel pipe 10 respectively. One end is welded to the cutter head 2, and the other end is sealed to the inner wall of the outer steel pipe 10 through the end plate. At the same time, one end of the outer steel pipe 10 is connected to the handle insulating shell 4, and the other end is connected to the insulating head 3.

[0030] In this application, the blade 2 has a semi-ellipsoidal structure, which fits more closely to the breast excision puncture channel. During coagulation, it can make the generated plasma cloud more diffuse and uniform, achieving a full coagulation effect. Furthermore, the blade 2, the inner steel tube 11, and the outer steel tube 10 are all made of medical-grade stainless steel.

[0031] In this application, a PTFE insulation layer is sprayed on the outer wall surface of both the inner steel pipe 11 and the outer steel pipe 10 to provide insulation.

[0032] Specifically, for ease of operation, an inlet pipe 41, an outlet pipe 42, and a power cord 43 are installed through the end of the handle insulating shell 4; an opening 102 is opened on the outer wall of the outer steel pipe 10 near the end plate; one end of the inlet pipe 41 and the outlet pipe 42 are respectively connected to the end of the inner steel pipe 11 and the opening 102, and the other end is respectively connected to the injection pump and the negative pressure suction device; the cutter head 2 and the outer steel pipe 10 are respectively connected to the positive and negative terminals of the power supply through the power cord 43; the positive terminal of the power supply is connected to the inner steel pipe 11 through the power cord 43, so that the cutter head 2 is the positive terminal; at the same time, the negative terminal of the power supply is connected to the outer steel pipe 10 through the power cord 43, so that the outer steel pipe 10 is the negative terminal.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A plasma scalpel for breast irrigation and hemostasis, characterized in that: It includes a tool holder assembly (1) and a tool head (2) disposed at the end of the tool holder assembly (1); The tool holder assembly (1) and the tool head (2) are also provided with an insulating head (3); The cutter head (2) is provided with a water outlet hole (21), and the cutter bar assembly (1) is provided with several negative pressure holes (101) on the outer peripheral side wall near the cutter head (2); The cutter bar assembly (1) is provided with an irrigation channel and a suction channel that are respectively connected to the water outlet (21) and the negative pressure hole (101); the irrigation channel and the suction channel are respectively connected to the irrigation pump and the negative pressure suction device.

2. The plasma scalpel for breast irrigation and hemostasis according to claim 1, characterized in that, The insulating head (3) is a PTFE insulating head.

3. The plasma scalpel for breast irrigation and hemostasis according to claim 1, characterized in that, The tool holder assembly (1) includes an inner steel tube (11) and an outer steel tube (10) nested together. The two ends of the inner steel pipe (11) protrude from the two ends of the outer steel pipe (10); one end of the inner steel pipe (11) is welded to the cutter head (2), and the other end is sealed to the inner wall of the outer steel pipe (10) through an end plate; one end of the outer steel pipe (10) is connected to the handle insulating shell (4), and the other end of the outer steel pipe (10) is connected to the insulating head (3).

4. The plasma scalpel for breast irrigation and hemostasis according to claim 3, characterized in that, A suction channel is formed between the inner steel pipe (11) and the outer steel pipe (10), and an irrigation channel is formed inside the inner steel pipe (11). The negative pressure hole (101) is opened on the outer steel pipe (10).

5. A plasma scalpel for breast irrigation and hemostasis according to claim 3 or 4, characterized in that, The cutter head (2) has a semi-ellipsoidal structure.

6. A plasma scalpel for breast irrigation and hemostasis according to claim 3 or 4, characterized in that, The outer walls of both the inner steel pipe (11) and the outer steel pipe (10) are coated with a PTFE insulation layer.

7. A plasma scalpel for breast irrigation and hemostasis according to claim 3 or 4, characterized in that, The blade (2), inner steel tube (11) and outer steel tube (10) are all made of medical-grade stainless steel.

8. A plasma scalpel for breast irrigation and hemostasis according to claim 3 or 4, characterized in that, The end of the handle insulating shell (4) is provided with a water inlet pipe (41), a water outlet pipe (42) and a power cord (43); the outer steel pipe (10) has an opening (102) on its outer wall near the end plate; the water inlet pipe (41) and the water outlet pipe (42) are respectively connected to the end of the inner steel pipe (11) and the opening (102); the cutter head (2) and the outer steel pipe (110) are respectively connected to the positive and negative poles of the power supply through the power cord (43).